USB Stack Device Reference Manual

User Manual:

Open the PDF directly: View PDF PDF.
Page Count: 217 [warning: Documents this large are best viewed by clicking the View PDF Link!]

USB Stack Device Reference Manual
Freescale Semiconductor, Inc.
Document Number:
KSD K20USBDAPIRM
Rev. 0
Jan 2016
Contents
Chapter Overview
1.1 USB Device Callback Work Flow ........................... 4
Chapter Definitions and structures
2.1 Overview ........................................ 7
2.2 Data Structure Documentation ............................ 8
2.2.1 struct usb_version_t ................................. 8
2.3 Typedef Documentation ................................ 8
2.3.1 usb_device_handle .................................. 8
2.4 Enumeration Type Documentation .......................... 9
2.4.1 usb_status_t ..................................... 9
2.4.2 usb_controller_index_t ................................ 9
Chapter USB Class driver
3.1 Overview ........................................ 11
3.2 Data Structure Documentation ............................ 13
3.2.1 struct usb_device_endpoint_struct_t ......................... 13
3.2.2 struct usb_device_endpoint_list_t .......................... 13
3.2.3 struct usb_device_interface_struct_t ......................... 13
3.2.4 struct usb_device_interfaces_struct_t ........................ 13
3.2.5 struct usb_device_interface_list_t .......................... 14
3.2.6 struct usb_device_class_struct_t ........................... 14
3.2.7 struct usb_device_class_config_struct_t ....................... 14
3.2.8 struct usb_device_class_config_list_struct_t .................... 15
3.2.9 struct usb_device_control_request_struct_t ..................... 15
3.2.10 struct usb_device_get_descriptor_common_struct_t ................ 16
3.2.11 struct usb_device_get_device_descriptor_struct_t .................. 16
3.2.12 struct usb_device_get_configuration_descriptor_struct_t .............. 17
3.2.13 struct usb_device_get_string_descriptor_struct_t .................. 17
3.2.14 struct usb_device_get_hid_descriptor_struct_t ................... 18
3.2.15 struct usb_device_get_hid_report_descriptor_struct_t ............... 18
3.2.16 struct usb_device_get_hid_physical_descriptor_struct_t .............. 19
Freescale Semiconductor
USB Stack Device Reference Manual
iii
Section
Number
Contents
Title
Page
Number
3.2.17 union usb_device_get_descriptor_common_union_t ................ 19
3.2.18 struct usb_device_class_map_t ........................... 20
3.2.19 struct usb_device_common_class_struct_t ..................... 20
3.3 Enumeration Type Documentation .......................... 21
3.3.1 usb_device_class_type_t ............................... 21
3.3.2 usb_device_class_event_t .............................. 21
3.4 Function Documentation ............................... 21
3.4.1 USB_DeviceClassInit ................................ 21
3.4.2 USB_DeviceClassDeinit ............................... 21
3.4.3 USB_DeviceClassGetSpeed ............................. 22
3.4.4 USB_DeviceClassEvent ............................... 22
3.4.5 USB_DeviceClassCallback ............................. 23
3.4.6 USB_DeviceClassGetDeviceHandle ........................ 23
3.5 USB MSC Class driver ................................ 25
3.5.1 Overview ....................................... 25
3.5.2 USB MSC driver ................................... 26
3.5.3 USB MSC UFI driver ................................ 34
3.6 USB CDC Class driver ................................ 41
3.6.1 Overview ....................................... 41
3.6.2 USB CDC ACM Class driver ............................ 42
3.6.3 USB CDC RNDIS driver .............................. 56
3.7 USB AUDIO Class driver ............................... 77
3.7.1 Overview ....................................... 77
3.7.2 Data Structure Documentation ............................ 80
3.7.3 Enumeration Type Documentation ......................... 81
3.7.4 Function Documentation ............................... 81
3.8 USB CCID Class driver ................................ 85
3.8.1 Overview ....................................... 85
3.8.2 Data Structure Documentation ............................ 89
3.8.3 Macro Definition Documentation ..........................112
3.8.4 Enumeration Type Documentation .........................112
3.8.5 Function Documentation ...............................113
3.9 USB HID Class driver .................................117
3.9.1 Overview .......................................117
3.9.2 Data Structure Documentation ............................118
3.9.3 Macro Definition Documentation ..........................120
3.9.4 Enumeration Type Documentation .........................120
3.9.5 Function Documentation ...............................120
iv
USB Stack Device Reference Manual
Freescale Semiconductor
Section
Number
Contents
Title
Page
Number
3.10 USB PHDC Class driver ................................124
3.10.1 Overview .......................................124
3.10.2 Data Structure Documentation ............................125
3.10.3 Enumeration Type Documentation .........................126
3.10.4 Function Documentation ...............................126
3.11 USB VIDEO Class driver ...............................130
3.11.1 Overview .......................................130
3.11.2 Data Structure Documentation ............................142
3.11.3 Enumeration Type Documentation .........................148
3.11.4 Function Documentation ...............................149
Chapter USB Device driver
4.1 Overview ........................................153
4.2 Data Structure Documentation ............................155
4.2.1 struct usb_device_endpoint_callback_message_struct_t ..............155
4.2.2 struct usb_device_endpoint_callback_struct_t ...................156
4.2.3 struct usb_device_endpoint_init_struct_t ......................156
4.2.4 struct usb_device_endpoint_status_struct_t .....................156
4.3 Macro Definition Documentation ...........................156
4.3.1 USB_SETUP_PACKET_SIZE ...........................156
4.4 Typedef Documentation ................................157
4.4.1 usb_device_endpoint_callback_t ..........................157
4.4.2 usb_device_callback_t ................................158
4.5 Enumeration Type Documentation ..........................158
4.5.1 usb_device_status_t .................................158
4.5.2 usb_device_state_t ..................................159
4.5.3 usb_device_endpoint_status_t ............................159
4.5.4 usb_device_event_t .................................159
4.6 Function Documentation ...............................160
4.6.1 USB_DeviceInit ...................................160
4.6.2 USB_DeviceRun ...................................161
4.6.3 USB_DeviceStop ..................................162
4.6.4 USB_DeviceDeinit ..................................162
4.6.5 USB_DeviceSendRequest ..............................162
4.6.6 USB_DeviceRecvRequest ..............................163
4.6.7 USB_DeviceCancel .................................164
4.6.8 USB_DeviceInitEndpoint ..............................165
4.6.9 USB_DeviceDeinitEndpoint .............................165
4.6.10 USB_DeviceStallEndpoint ..............................166
Freescale Semiconductor
USB Stack Device Reference Manual
v
Section
Number
Contents
Title
Page
Number
4.6.11 USB_DeviceUnstallEndpoint ............................167
4.6.12 USB_DeviceGetStatus ................................168
4.6.13 USB_DeviceSetStatus ................................169
4.6.14 USB_DeviceTaskFunction ..............................170
4.6.15 USB_DeviceGetVersion ...............................170
4.7 USB Device Controller driver .............................171
4.7.1 Overview .......................................171
4.7.2 Data Structure Documentation ............................172
4.7.3 Enumeration Type Documentation .........................173
4.7.4 USB Device Controller EHCI driver ........................175
4.7.5 USB Device Controller KHCI driver ........................181
4.8 USB Device Spec Chapter 9 driver ..........................187
4.8.1 Overview .......................................187
4.8.2 Enumeration Type Documentation .........................187
4.8.3 Function Documentation ...............................188
4.9 USB Device Configuration ..............................190
4.9.1 Overview .......................................190
4.9.2 Macro Definition Documentation ..........................192
Chapter USB OS Adapter
5.1 Overview ........................................195
5.2 Enumeration Type Documentation ..........................197
5.2.1 usb_osa_status_t ...................................197
5.2.2 usb_osa_event_mode_t ...............................197
5.3 Function Documentation ...............................197
5.3.1 USB_OsaMemoryAllocate .............................197
5.3.2 USB_OsaMemoryFree ................................197
5.3.3 USB_OsaEventCreate ................................198
5.3.4 USB_OsaEventDestroy ...............................198
5.3.5 USB_OsaEventSet ..................................199
5.3.6 USB_OsaEventWait .................................200
5.3.7 USB_OsaEventCheck ................................201
5.3.8 USB_OsaEventClear .................................202
5.3.9 USB_OsaSemCreate .................................202
5.3.10 USB_OsaSemDestroy ................................203
5.3.11 USB_OsaSemPost ..................................203
5.3.12 USB_OsaSemWait ..................................204
5.3.13 USB_OsaMutexCreate ................................204
5.3.14 USB_OsaMutexDestroy ...............................205
vi
USB Stack Device Reference Manual
Freescale Semiconductor
Section
Number
Contents
Title
Page
Number
5.3.15 USB_OsaMutexLock ................................205
5.3.16 USB_OsaMutexUnlock ...............................206
5.3.17 USB_OsaMsgqCreate ................................206
5.3.18 USB_OsaMsgqDestroy ...............................207
5.3.19 USB_OsaMsgqSend .................................207
5.3.20 USB_OsaMsgqRecv .................................208
5.3.21 USB_OsaMsgqCheck ................................208
Freescale Semiconductor
USB Stack Device Reference Manual
vii
Chapter 1
Overview
The USB device stack is composed of the USB controller driver only, which consists of the common
controller driver and the xHCI driver. The device class driver and the USB framework to handle the
standard enumeration and request defined by USB specification 2.0 are moved to the application layer.
These two parts are example-specific to reduce the footprint of the examples.
Note
Note that the xHCI represents either EHCI or KHCI, not the XHCI for USB 3.0.
In the USB Device stack, there are two different USB applications. One is the lite version and the other is
similar to the examples in the previous USB stack.
The whole architecture and components of USB stack are shown below:
Freescale Semiconductor
USB Stack Device Reference Manual
1
Figure 1: USB device stack architecture
For the lite version application, the code size is smaller than the non-lite version. However, an obvious
drawback of the new architecture is that customers to use the controller driver API to implement the
standard enumeration process, the class-specific process, and the customer-specific functionality.
The device stack initialization sequence for the lite version application is as follows:
1. Initialize the Pin Mux, USB clock, and so on. If the SoC has a USB KHCI-dedicated RAM, the
RAM memory needs to be clear after the KHCI clock is enabled. When the demo uses USB EHCI
IP, the USB KHCI dedicated-RAM can’t be used and the memory can’t be accessed.
2. Initialize the USB device stack by calling the API USB_DeviceInit.
3. When the device task is enabled, create the USB device task by using the device handle, returned
from USB_DeviceInit, as the task parameter when the environment is an RTOS.
4. Install the USB ISR.
5. Enable the USB interrupt and the interrupt priority.
2
USB Stack Device Reference Manual
Freescale Semiconductor
6. Start the USB device by calling the USB_DeviceRun.
Figure 2: USB device initialization for lite version
To assist customers with less concerns about the footprint and focus on ease of use of the USB stack, a
generic usb_ch9 implementation is provided and the specified class driver, such as HID class driver, CDC
class driver, and so on. This implementation is more generic, it can be reused in different examples and
the APIs are easier to use. However, some callback functions need to be implemented and the code size is
larger.
The device stack initialization sequence for non-lite version application is as follows:
1. Initialize the Pin Mux, USB clock, and so on. If the SOC has the USB KHCI-dedicated RAM, the
RAM memory needs to be clear after the KHCI clock is enabled. When the demo uses USB EHCI
IP, the USB KHCI-dedicated RAM can’t be used and the memory can’t be accessed.
2. Initialize the USB device stack by calling the API USB_DeviceClassInit. Initialize each application.
3. Get each class handle from the usb_device_class_config_struct_t::classHandle.
4. When the device task is enabled, create the USB device task by using the device handle, returned
from USB_DeviceClassInit, as the task parameter when the environment is RTOS.
Freescale Semiconductor
USB Stack Device Reference Manual
3
USB Device Callback Work Flow
5. Install the USB ISR.
6. Enable the USB interrupt and the interrupt priority.
7. Start the USB device by calling the USB_DeviceRun.
Figure 3: USB device initialization for non-lite version
To support different RTOSes with the same code base, the OSA is used inside the USB stack to wrap the
differences between RTOSes.
Note
The OSA should not be used in the USB application. As a result, from the USB application’s
viewpoint, the OSA is invisible.
1.1 USB Device Callback Work Flow
The device callback is registered when the USB_DeviceInit function is called.
The following events should be processed in this callback function:
4
USB Stack Device Reference Manual
Freescale Semiconductor
USB Device Callback Work Flow
• kUsbDeviceEventBusReset
When the application receives this event, the device has received a BUS RESET signal. In the event,
the control pipe should be initialized. See the work flow. The parameter eventParam is not used.
• kUsbDeviceEventSetConfiguration
When the application receives this event, the host has sent a set configuration request. The configu-
ration value can be received from the parameter eventParam. In the event, the application configu-
ration can be set. Initialize each interface in the current configuration by using zero as an alternate
setting.
• kUsbDeviceEventSetInterface
When the application receives this event, the host sent a set alternate setting request of an interface.
The interface and alternate setting value can be received from the parameter eventParam. The event-
Param points to a uint16_t variable. The high 8-bit is interface value and the low 8-bit is alternate
setting. In the event, the application changes the alternate setting of this interface if the new alternate
setting is not equal to the current setting.
Normally, change the steps as follows:
1. Cancel all transfers of the current alternate setting in this interface.
2. De-initialize all pipes of the current alternate setting in this interface.
3. Initialize all pipes of the new alternate setting in this interface.
4. Prime the transfers of the new setting.
For example,
uint16_t*temp16 = (uint16_t*)eventParam;
uint8_t interface = (uint8_t)((*temp16&0xFF)>>0x08);
currentAlternateSetting[interface] = (uint8_t)(*temp16&0xFF);
The device callback event work flow:
Freescale Semiconductor
USB Stack Device Reference Manual
5
USB Device Callback Work Flow
Figure 1.1.1: USB device callback working flow
6
USB Stack Device Reference Manual
Freescale Semiconductor
Chapter 2
Definitions and structures
2.1 Overview
This lists the common definitions and structures for the USB stack.
Data Structures
• struct usb_version_t
USB stack version fields. More...
Macros
• #define USB_STACK_VERSION_MAJOR (0x01U)
Defines USB stack major version.
• #define USB_STACK_VERSION_MINOR (0x00U)
Defines USB stack minor version.
• #define USB_STACK_VERSION_BUGFIX (0x00U)
Defines USB stack bug fix version.
• #define USB_MAKE_VERSION(major, minor, bugfix) (((major) << 16) |((minor) << 8) |(bug-
fix))
USB stack version definition.
Typedefs
• typedef void ∗usb_host_handle
USB host handle type define.
• typedef void ∗usb_device_handle
USB device handle type define.
• typedef void ∗usb_otg_handle
USB OTG handle type define.
Freescale Semiconductor
USB Stack Device Reference Manual
7
Typedef Documentation
Enumerations
• enum usb_status_t {
kStatus_USB_Success = 0x00U,
kStatus_USB_Error,
kStatus_USB_Busy,
kStatus_USB_InvalidHandle,
kStatus_USB_InvalidParameter,
kStatus_USB_InvalidRequest,
kStatus_USB_ControllerNotFound,
kStatus_USB_InvalidControllerInterface,
kStatus_USB_NotSupported,
kStatus_USB_Retry,
kStatus_USB_TransferStall,
kStatus_USB_TransferFailed,
kStatus_USB_AllocFail,
kStatus_USB_LackSwapBuffer,
kStatus_USB_TransferCancel,
kStatus_USB_BandwidthFail,
kStatus_USB_MSDStatusFail }
USB error code.
• enum usb_controller_index_t {
kUSB_ControllerKhci0 = 0U,
kUSB_ControllerKhci1,
kUSB_ControllerEhci0,
kUSB_ControllerEhci1 }
USB controller ID.
2.2 Data Structure Documentation
2.2.1 struct usb_version_t
Data Fields
• uint8_t major
Major.
• uint8_t minor
Minor.
• uint8_t bugfix
Bug fix.
2.3 Typedef Documentation
2.3.1 typedef void∗usb_device_handle
For device stack it is the whole device handle; for host stack it is the attached device instance handle
8
USB Stack Device Reference Manual
Freescale Semiconductor
Enumeration Type Documentation
2.4 Enumeration Type Documentation
2.4.1 enum usb_status_t
Enumerator
kStatus_USB_Success Success.
kStatus_USB_Error Failed.
kStatus_USB_Busy Busy.
kStatus_USB_InvalidHandle Invalid handle.
kStatus_USB_InvalidParameter Invalid parameter.
kStatus_USB_InvalidRequest Invalid request.
kStatus_USB_ControllerNotFound Controller cannot be found.
kStatus_USB_InvalidControllerInterface Invalid controller interface.
kStatus_USB_NotSupported Configuration is not supported.
kStatus_USB_Retry Enumeration get configuration retry.
kStatus_USB_TransferStall Transfer stalled.
kStatus_USB_TransferFailed Transfer failed.
kStatus_USB_AllocFail Allocation failed.
kStatus_USB_LackSwapBuffer Insufficient swap buffer for KHCI.
kStatus_USB_TransferCancel The transfer cancelled.
kStatus_USB_BandwidthFail Allocate bandwidth failed.
kStatus_USB_MSDStatusFail For MSD, the CSW status means fail.
2.4.2 enum usb_controller_index_t
Enumerator
kUSB_ControllerKhci0 KHCI 0U.
kUSB_ControllerKhci1 KHCI 1U, Currently, there are no platforms which have two KHCI IPs, this
is reserved to be used in the future.
kUSB_ControllerEhci0 EHCI 0U.
kUSB_ControllerEhci1 EHCI 1U, Currently, there are no platforms which have two KHCI IPs, this
is reserved to be used in the future.
Freescale Semiconductor
USB Stack Device Reference Manual
9
Enumeration Type Documentation
10
USB Stack Device Reference Manual
Freescale Semiconductor
Chapter 3
USB Class driver
3.1 Overview
Modules
•USB AUDIO Class driver
•USB CCID Class driver
•USB CDC Class driver
•USB HID Class driver
•USB MSC Class driver
•USB PHDC Class driver
•USB VIDEO Class driver
Data Structures
• struct usb_device_endpoint_struct_t
Obtains the endpoint data structure. More...
• struct usb_device_endpoint_list_t
Obtains the endpoint group. More...
• struct usb_device_interface_struct_t
Obtains the interface list data structure. More...
• struct usb_device_interfaces_struct_t
Obtains the interface data structure. More...
• struct usb_device_interface_list_t
Obtains the interface group. More...
• struct usb_device_class_struct_t
Obtains the class data structure. More...
• struct usb_device_class_config_struct_t
Obtains the device class information structure. More...
• struct usb_device_class_config_list_struct_t
Obtains the device class configuration structure. More...
• struct usb_device_control_request_struct_t
Obtains the control request structure. More...
• struct usb_device_get_descriptor_common_struct_t
Obtains the control get descriptor request common structure. More...
• struct usb_device_get_device_descriptor_struct_t
Obtains the control get device descriptor request structure. More...
• struct usb_device_get_configuration_descriptor_struct_t
Obtains the control get configuration descriptor request structure. More...
• struct usb_device_get_string_descriptor_struct_t
Obtains the control get string descriptor request structure. More...
• struct usb_device_get_hid_descriptor_struct_t
Obtains the control get hid descriptor request structure. More...
• struct usb_device_get_hid_report_descriptor_struct_t
Obtains the control get hid report descriptor request structure. More...
• struct usb_device_get_hid_physical_descriptor_struct_t
Freescale Semiconductor
USB Stack Device Reference Manual
11
Overview
Obtains the control get hid physical descriptor request structure. More...
• union usb_device_get_descriptor_common_union_t
Obtains the control get descriptor request common union. More...
• struct usb_device_class_map_t
Define class driver interface structure. More...
• struct usb_device_common_class_struct_t
Structure holding common class state information. More...
Macros
• #define class_handle_t uint32_t
Macro to define class handle.
Typedefs
• typedef usb_status_t(∗usb_device_class_init_call_t )(uint8_t controllerId, usb_device_class_-
config_struct_t ∗classConfig, class_handle_t ∗classHandle)
Define function type for class device instance initialization.
• typedef usb_status_t(∗usb_device_class_deinit_call_t )(class_handle_t handle)
Define function type for class device instance deinitialization, internal.
• typedef usb_status_t(∗usb_device_class_event_callback_t )(void ∗classHandle, uint32_t event,
void ∗param)
Define function type for class device instance Event change.
Enumerations
• enum usb_device_class_type_t
Available class types.
• enum usb_device_class_event_t
Available common class events.
Functions
•usb_status_t USB_DeviceClassInit (uint8_t controllerId, usb_device_class_config_list_struct_t
∗configList, usb_device_handle ∗handle)
Initializes the common class and the supported classes.
•usb_status_t USB_DeviceClassDeinit (uint8_t controllerId)
Deinitializes the common class and the supported classes.
•usb_status_t USB_DeviceClassGetSpeed (uint8_t controllerId, uint8_t ∗speed)
Gets the USB bus speed.
•usb_status_t USB_DeviceClassEvent (usb_device_handle handle, usb_device_class_event_t event,
void ∗param)
Handles the event passed to the class drivers.
•usb_status_t USB_DeviceClassCallback (usb_device_handle handle, uint32_t event, void ∗param)
Handles the common class callback.
•usb_status_t USB_DeviceClassGetDeviceHandle (uint8_t controllerId, usb_device_handle
∗handle)
Gets the device handle according to the controller ID.
12
USB Stack Device Reference Manual
Freescale Semiconductor
Data Structure Documentation
3.2 Data Structure Documentation
3.2.1 struct usb_device_endpoint_struct_t
Define the endpoint data structure.
Data Fields
• uint8_t endpointAddress
Endpoint address.
• uint8_t transferType
Endpoint transfer type.
• uint16_t maxPacketSize
Endpoint maximum packet size.
3.2.2 struct usb_device_endpoint_list_t
Structure representing endpoints and the number of endpoints that the user wants.
Data Fields
• uint8_t count
How many endpoints in current interface.
•usb_device_endpoint_struct_t ∗endpoint
Endpoint structure list.
3.2.3 struct usb_device_interface_struct_t
Structure representing an interface.
Data Fields
• uint8_t alternateSetting
Alternate setting number.
•usb_device_endpoint_list_t endpointList
Endpoints of the interface.
• void ∗classSpecific
Class specific structure handle.
3.2.4 struct usb_device_interfaces_struct_t
Structure representing interface.
Freescale Semiconductor
USB Stack Device Reference Manual
13
Data Structure Documentation
Data Fields
• uint8_t classCode
Class code of the interface.
• uint8_t subclassCode
Subclass code of the interface.
• uint8_t protocolCode
Protocol code of the interface.
• uint8_t interfaceNumber
Interface number.
•usb_device_interface_struct_t ∗interface
Interface structure list.
• uint8_t count
Number of interfaces in the current interface.
3.2.5 struct usb_device_interface_list_t
Structure representing how many interfaces in one class type.
Data Fields
• uint8_t count
Number of interfaces of the class.
•usb_device_interfaces_struct_t ∗interfaces
All interfaces.
3.2.6 struct usb_device_class_struct_t
Structure representing how many configurations in one class type.
Data Fields
•usb_device_interface_list_t ∗interfaceList
Interfaces of the class.
•usb_device_class_type_t type
Class type.
• uint8_t configurations
Number of configurations of the class.
3.2.7 struct usb_device_class_config_struct_t
Structure representing the device class information. This structure only can be stored in RAM space.
14
USB Stack Device Reference Manual
Freescale Semiconductor
Data Structure Documentation
Data Fields
• usb_device_class_callback_t classCallback
Class callback function to handle the device status-related event for the specified type of class.
•class_handle_t classHandle
The class handle of the class, filled by the common driver.
•usb_device_class_struct_t ∗classInfomation
Detailed information of the class.
3.2.7.0.0.1 Field Documentation
3.2.7.0.0.1.1 class_handle_t usb_device_class_config_struct_t::classHandle
3.2.8 struct usb_device_class_config_list_struct_t
Structure representing the device class configuration information.
Data Fields
•usb_device_class_config_struct_t ∗config
Array of class configuration structures.
•usb_device_callback_t deviceCallback
Device callback function.
• uint8_t count
Number of class supported.
3.2.9 struct usb_device_control_request_struct_t
This structure is used to pass the control request information. The structure is used in following two cases.
1. Case one, the host wants to send data to the device in the control data stage:
a. If a setup packet is received, the structure is used to pass the setup packet data and wants to get the
buffer to receive data sent from the host. The field isSetup is 1. The length is the requested buffer
length. The buffer is filled by the class or application by using the valid buffer address. The setup
is the setup packet address.
b. If the data received is sent by the host, the structure is used to pass the data buffer address and
the data length sent by the host. In this way, the field isSetup is 0. The buffer is the address of the
data sent from the host. The length is the received data length. The setup is the setup packet
address.
2. Case two, the host wants to get data from the device in control data stage:
If the setup packet is received, the structure is used to pass the setup packet data and wants to get the
data buffer address to send data to the host. The field isSetup is 1. The length is the requested data
length. The buffer is filled by the class or application by using the valid buffer address. The setup is
the setup packet address.
Freescale Semiconductor USB Stack Device Reference Manual 15
Data Structure Documentation
Data Fields
• usb_setup_struct_t ∗setup
The pointer of the setup packet data.
• uint8_t ∗buffer
Pass the buffer address.
• uint32_t length
Pass the buffer length or requested length.
• uint8_t isSetup
Indicates whether a setup packet is received.
3.2.9.0.0.2 Field Documentation
3.2.9.0.0.2.1 usb_setup_struct_t∗usb_device_control_request_struct_t::setup
3.2.9.0.0.2.2 uint8_t∗usb_device_control_request_struct_t::buffer
3.2.9.0.0.2.3 uint32_t usb_device_control_request_struct_t::length
3.2.9.0.0.2.4 uint8_t usb_device_control_request_struct_t::isSetup
3.2.10 struct usb_device_get_descriptor_common_struct_t
Data Fields
• uint8_t ∗buffer
Pass the buffer address.
• uint32_t length
Pass the buffer length.
3.2.10.0.0.3 Field Documentation
3.2.10.0.0.3.1 uint8_t∗usb_device_get_descriptor_common_struct_t::buffer
3.2.10.0.0.3.2 uint32_t usb_device_get_descriptor_common_struct_t::length
3.2.11 struct usb_device_get_device_descriptor_struct_t
Data Fields
• uint8_t ∗buffer
Pass the buffer address.
• uint32_t length
Pass the buffer length.
16
USB Stack Device Reference Manual
Freescale Semiconductor
Data Structure Documentation
3.2.11.0.0.4 Field Documentation
3.2.11.0.0.4.1 uint8_t∗usb_device_get_device_descriptor_struct_t::buffer
3.2.11.0.0.4.2 uint32_t usb_device_get_device_descriptor_struct_t::length
3.2.12 struct usb_device_get_configuration_descriptor_struct_t
Data Fields
• uint8_t ∗buffer
Pass the buffer address.
• uint32_t length
Pass the buffer length.
• uint8_t configuration
The configuration number.
3.2.12.0.0.5 Field Documentation
3.2.12.0.0.5.1 uint8_t∗usb_device_get_configuration_descriptor_struct_t::buffer
3.2.12.0.0.5.2 uint32_t usb_device_get_configuration_descriptor_struct_t::length
3.2.12.0.0.5.3 uint8_t usb_device_get_configuration_descriptor_struct_t::configuration
3.2.13 struct usb_device_get_string_descriptor_struct_t
Data Fields
• uint8_t ∗buffer
Pass the buffer address.
• uint32_t length
Pass the buffer length.
• uint16_t languageId
Language ID.
• uint8_t stringIndex
String index.
Freescale Semiconductor
USB Stack Device Reference Manual
17
Data Structure Documentation
3.2.13.0.0.6 Field Documentation
3.2.13.0.0.6.1 uint8_t∗usb_device_get_string_descriptor_struct_t::buffer
3.2.13.0.0.6.2 uint32_t usb_device_get_string_descriptor_struct_t::length
3.2.13.0.0.6.3 uint16_t usb_device_get_string_descriptor_struct_t::languageId
3.2.13.0.0.6.4 uint8_t usb_device_get_string_descriptor_struct_t::stringIndex
3.2.14 struct usb_device_get_hid_descriptor_struct_t
Data Fields
• uint8_t ∗buffer
Pass the buffer address.
• uint32_t length
Pass the buffer length.
• uint8_t interfaceNumber
The interface number.
3.2.14.0.0.7 Field Documentation
3.2.14.0.0.7.1 uint8_t∗usb_device_get_hid_descriptor_struct_t::buffer
3.2.14.0.0.7.2 uint32_t usb_device_get_hid_descriptor_struct_t::length
3.2.14.0.0.7.3 uint8_t usb_device_get_hid_descriptor_struct_t::interfaceNumber
3.2.15 struct usb_device_get_hid_report_descriptor_struct_t
Data Fields
• uint8_t ∗buffer
Pass the buffer address.
• uint32_t length
Pass the buffer length.
• uint8_t interfaceNumber
The interface number.
18
USB Stack Device Reference Manual
Freescale Semiconductor
Data Structure Documentation
3.2.15.0.0.8 Field Documentation
3.2.15.0.0.8.1 uint8_t∗usb_device_get_hid_report_descriptor_struct_t::buffer
3.2.15.0.0.8.2 uint32_t usb_device_get_hid_report_descriptor_struct_t::length
3.2.15.0.0.8.3 uint8_t usb_device_get_hid_report_descriptor_struct_t::interfaceNumber
3.2.16 struct usb_device_get_hid_physical_descriptor_struct_t
Data Fields
• uint8_t ∗buffer
Pass the buffer address.
• uint32_t length
Pass the buffer length.
• uint8_t index
Physical index.
• uint8_t interfaceNumber
The interface number.
3.2.16.0.0.9 Field Documentation
3.2.16.0.0.9.1 uint8_t∗usb_device_get_hid_physical_descriptor_struct_t::buffer
3.2.16.0.0.9.2 uint32_t usb_device_get_hid_physical_descriptor_struct_t::length
3.2.16.0.0.9.3 uint8_t usb_device_get_hid_physical_descriptor_struct_t::interfaceNumber
3.2.17 union usb_device_get_descriptor_common_union_t
Data Fields
•usb_device_get_descriptor_common_struct_t commonDescriptor
Common structure.
•usb_device_get_device_descriptor_struct_t deviceDescriptor
The structure to get device descriptor.
•usb_device_get_configuration_descriptor_struct_t configurationDescriptor
The structure to get configuration descriptor.
•usb_device_get_string_descriptor_struct_t stringDescriptor
The structure to get string descriptor.
•usb_device_get_hid_descriptor_struct_t hidDescriptor
The structure to get hid descriptor.
•usb_device_get_hid_report_descriptor_struct_t hidReportDescriptor
The structure to get hid report descriptor.
•usb_device_get_hid_physical_descriptor_struct_t hidPhysicalDescriptor
The structure to get hid physical descriptor.
Freescale Semiconductor
USB Stack Device Reference Manual
19
Data Structure Documentation
3.2.17.0.0.10 Field Documentation
3.2.17.0.0.10.1 usb_device_get_descriptor_common_struct_t usb_device_get_descriptor_-
common_union_t::commonDescriptor
3.2.17.0.0.10.2 usb_device_get_device_descriptor_struct_t usb_device_get_descriptor_common_-
union_t::deviceDescriptor
3.2.17.0.0.10.3 usb_device_get_configuration_descriptor_struct_t usb_device_get_descriptor_-
common_union_t::configurationDescriptor
3.2.17.0.0.10.4 usb_device_get_string_descriptor_struct_t usb_device_get_descriptor_common_-
union_t::stringDescriptor
3.2.17.0.0.10.5 usb_device_get_hid_descriptor_struct_t usb_device_get_descriptor_common_-
union_t::hidDescriptor
3.2.17.0.0.10.6 usb_device_get_hid_report_descriptor_struct_t usb_device_get_descriptor_-
common_union_t::hidReportDescriptor
3.2.17.0.0.10.7 usb_device_get_hid_physical_descriptor_struct_t usb_device_get_descriptor_-
common_union_t::hidPhysicalDescriptor
3.2.18 struct usb_device_class_map_t
Data Fields
•usb_device_class_init_call_t classInit
Class driver initialization- entry of the class driver.
•usb_device_class_deinit_call_t classDeinit
Class driver de-initialization.
•usb_device_class_event_callback_t classEventCallback
Class driver event callback.
•usb_device_class_type_t type
Class type.
3.2.19 struct usb_device_common_class_struct_t
Data Fields
•usb_device_handle handle
USB device handle.
•usb_device_class_config_list_struct_t ∗configList
USB device configure list.
• uint8_t setupBuffer [USB_SETUP_PACKET_SIZE]
Setup packet data buffer.
• uint16_t standardTranscationBuffer
20
USB Stack Device Reference Manual
Freescale Semiconductor
Function Documentation
This variable is used in: get status request get configuration request get interface request set interface
request get sync frame request.
• uint8_t controllerId
Controller ID.
3.3 Enumeration Type Documentation
3.3.1 enum usb_device_class_type_t
3.3.2 enum usb_device_class_event_t
3.4 Function Documentation
3.4.1 usb_status_t USB_DeviceClassInit ( uint8_t controllerId, usb_device-
_class_config_list_struct_t ∗configList, usb_device_handle ∗handle
)
This function is used to initialize the common class and the supported classes.
Parameters
in controllerId The controller ID of the USB IP. See the enumeration usb_controller_-
index_t.
in configList The class configurations. The pointer must point to the global variable.
See the structure usb_device_class_config_list_struct_t.
out handle An parameter used to return pointer of the device handle to the caller.
The value of the parameter is a pointer to the device handle. This design
is used to make a simple device align with the composite device. For
the composite device, there are many kinds of class handles. However,
there is only one device handle. Therefore, the handle points to a device
instead of a class. The class handle can be received from the usb_device-
_class_config_struct_t::classHandle after the the function successfully.
Returns
A USB error code or kStatus_USB_Success.
3.4.2 usb_status_t USB_DeviceClassDeinit ( uint8_t controllerId )
This function is used to deinitialize the common class and the supported classes.
Freescale Semiconductor
USB Stack Device Reference Manual
21
Function Documentation
Parameters
in controllerId The controller ID of the USB IP. See the enumeration usb_controller_-
index_t.
Returns
A USB error code or kStatus_USB_Success.
3.4.3 usb_status_t USB_DeviceClassGetSpeed ( uint8_t controllerId, uint8_t ∗
speed )
This function is used to get the USB bus speed.
Parameters
in controllerId The controller ID of the USB IP. See the enumeration usb_controller_-
index_t.
out speed It is an OUT parameter, which returns the current speed of the controller.
Returns
A USB error code or kStatus_USB_Success.
3.4.4 usb_status_t USB_DeviceClassEvent ( usb_device_handle handle,
usb_device_class_event_t event, void ∗param )
A valid request has been handled.
Parameters
in handle The device handle received from the USB_DeviceInit.
in event The event codes. See the enumeration usb_device_class_event_t.
in,out param The parameter type is determined by the event code.
Returns
A USB error code or kStatus_USB_Success.
22
USB Stack Device Reference Manual
Freescale Semiconductor
Function Documentation
Return values
kStatus_USB_Success A valid request has been handled.
kStatus_USB_Invalid-
Parameter
The device handle not be found.
kStatus_USB_Invalid-
Request
The request is invalid, and the control pipe is stalled by the caller.
3.4.5 usb_status_t USB_DeviceClassCallback ( usb_device_handle handle,
uint32_t event, void ∗param )
This function handles the common class callback.
Parameters
in handle The device handle received from the USB_DeviceInit.
in event The event codes. See the enumeration usb_device_event_t.
in,out param The parameter type is determined by the event code.
Returns
A USB error code or kStatus_USB_Success.
3.4.6 usb_status_t USB_DeviceClassGetDeviceHandle ( uint8_t controllerId,
usb_device_handle ∗handle )
This function gets the device handle according to the controller ID.
Parameters
in controllerId The controller ID of the USB IP. See the enumeration usb_controller_-
index_t.
out handle An out parameter used to return the pointer of the device handle to the
caller.
Freescale Semiconductor
USB Stack Device Reference Manual
23
Function Documentation
Return values
kStatus_USB_Success Get device handle successfully.
kStatus_USB_Invalid-
Parameter
The device handle can’t be found.
24
USB Stack Device Reference Manual
Freescale Semiconductor
USB MSC Class driver
3.5 USB MSC Class driver
3.5.1 Overview
Modules
•USB MSC UFI driver
•USB MSC driver
Freescale Semiconductor
USB Stack Device Reference Manual
25
USB MSC Class driver
3.5.2 USB MSC driver
3.5.2.1 Overview
Data Structures
• struct usb_device_msc_cbw_t
Command Block Wrapper(CBW) More...
• struct usb_device_msc_csw_t
Command Status Wrapper(CSW) More...
• struct usb_lba_transfer_information_struct_t
Read/write information. More...
• struct usb_device_lba_information_struct_t
device information More...
• struct usb_device_lba_app_struct_t
Data transfer information. More...
• struct usb_device_msc_thirteen_case_struct_t
The thirteen possible use cases of host expectations and device intent in the absence of overriding error
conditions. More...
• struct usb_device_msc_ufi_struct_t
The MSC device UFI command status structure. More...
• struct usb_device_msc_struct_t
The MSC device structure. More...
Macros
• #define USB_DEVICE_CONFIG_MSC_SUPPORT_DISK_LOCKING_MECHANISM (0U)
prevent media removal flag
• #define USB_DEVICE_CONFIG_MSC_CLASS_CODE (0x08U)
The class code of the MSC class.
• #define USB_DEVICE_MSC_BULK_ONLY_MASS_STORAGE_RESET (0xFFU)
Bulk-Only Mass Storage Reset (class-specific request)
• #define USB_DEVICE_MSC_GET_MAX_LUN (0xFEU)
Get Maximum LUN (class-specific request)
• #define USB_DEVICE_MSC_DCBWSIGNATURE USB_LONG_TO_BIG_ENDIAN(0x55534243-
U)
CBW dCBWSignature.
• #define USB_DEVICE_MSC_DCSWSIGNATURE USB_LONG_TO_BIG_ENDIAN(0x55534253-
U)
CSW dCSSWSignature.
• #define USB_DEVICE_MSC_CBW_DIRECTION_BIT (0x80U)
CSW bmCBWFlags bit7.
• #define USB_DEVICE_MSC_CBW_LENGTH (31U)
CBW command length.
• #define USB_DEVICE_MSC_CSW_LENGTH (13U)
CSW command length.
• #define USB_DEVICE_MSC_COMMAND_PASSED (0x00U)
Command Block Status Values.
• #define USB_DEVICE_MSC_INQUIRY_COMMAND (0x12U)
26
USB Stack Device Reference Manual
Freescale Semiconductor
USB MSC Class driver
UFI Commands code.
Enumerations
• enum usb_devcie_msc_stall_type {
USB_DEVICE_MSC_STALL_IN_CBW = 1U,
USB_DEVICE_MSC_STALL_IN_DATA,
USB_DEVICE_MSC_STALL_IN_CSW }
stall flag
• enum USB_DeviceMscEvent_t {
kUSB_DeviceMscEventReadResponse = 0x01U,
kUSB_DeviceMscEventWriteResponse,
kUSB_DeviceMscEventWriteRequest,
kUSB_DeviceMscEventReadRequest,
kUSB_DeviceMscEventGetLbaInformation,
kUSB_DeviceMscEventFormatComplete,
kUSB_DeviceMscEventRemovalRequest,
kUSB_DeviceMscEventStopEjectMedia }
Available common EVENT types in MSC class callback.
USB device MSC class APIs
•usb_status_t USB_DeviceMscInit (uint8_t controllerId, usb_device_class_config_struct_t ∗config,
class_handle_t ∗handle)
Initializes the MSC class.
•usb_status_t USB_DeviceMscDeinit (class_handle_t handle)
Deinitializes the device MSC class.
3.5.2.2 Data Structure Documentation
3.5.2.2.1 struct usb_device_msc_cbw_t
Data Fields
• uint32_t signature
Byte 0-3 dCBWSignature.
• uint32_t tag
Byte 4-7 dCBWTag.
• uint32_t dataTransferLength
Byte 8-11 dCBWDataTransferLength.
• uint8_t flags
Byte 12 bmCBWFlags.
• uint8_t logicalUnitNumber
Byte 13 bCBWLUN.
• uint8_t cbLength
Byte 14 bCBWCBLength.
Freescale Semiconductor
USB Stack Device Reference Manual
27
USB MSC Class driver
• uint8_t cbwcb [16]
Byte 15-30 CBWCB, CBWCB is used to store UFI command.
3.5.2.2.2 struct usb_device_msc_csw_t
Data Fields
• uint32_t signature
Byte 0-3 dCSWSignature.
• uint32_t tag
Byte 4-7 dCSWTag.
• uint32_t dataResidue
Byte 8-11 dCSWDataResidue.
• uint8_t cswStatus
Byte 12 bCSWStatus.
3.5.2.2.3 struct usb_lba_transfer_information_struct_t
Data Fields
• uint32_t startingLogicalBlockAddress
The logical block at which the read/write operation shall begin.
• uint32_t transferNumber
The number of contiguous logical blocks of data that shall be transferred.
3.5.2.2.4 struct usb_device_lba_information_struct_t
Data Fields
• uint32_t totalLbaNumberSupports
Total blocks number supported.
• uint32_t lengthOfEachLba
Length of each block.
• uint32_t bulkInBufferSize
Bulk in buffer size.
• uint32_t bulkOutBufferSize
Bulk out buffer size.
• uint8_t logicalUnitNumberSupported
Number of LUN.
3.5.2.2.5 struct usb_device_lba_app_struct_t
Data Fields
• uint32_t offset
Offset of the block need to access.
• uint32_t size
28
USB Stack Device Reference Manual
Freescale Semiconductor
USB MSC Class driver
Size of the transferred data.
• uint8_t ∗buffer
Buffer address of the transferred data.
3.5.2.2.6 struct usb_device_msc_thirteen_case_struct_t
Data Fields
• uint32_t hostExpectedDataLength
The number of bytes of data that the host expects to transfer.
• uint32_t deviceExpectedDataLength
The number of bytes of data that the device expects to transfer.
• uint8_t ∗buffer
Data buffer.
•usb_lba_transfer_information_struct_t lbaInformation
Read/write information.
• uint8_t lbaSendRecvSelect
Whether the command is read or write command.
• uint8_t hostExpectedDirection
Host expected data direction.
• uint8_t deviceExpectedDirection
Device expected data direction.
3.5.2.2.7 struct usb_device_msc_ufi_struct_t
Data Fields
•usb_device_request_sense_data_struct_t requestSense
Request Sense Standard Data.
•usb_device_msc_thirteen_case_struct_t thirteenCase
Thirteen possible cases.
•usb_device_read_capacity_struct_t readCapacity
READ CAPACITY Data.
•usb_device_read_capacity16_data_struct_t readCapacity16
READ CAPACITY Data.
•usb_device_inquiry_data_fromat_struct_t InquiryInfo
Standard INQUIRY Data.
•usb_device_mode_parameters_header_struct_t ModeParametersHeader
Mode Parameter Header.
• uint8_t formattedDisk
∗Formatted or unformatted media
• uint8_t formatCapacityData [sizeof(usb_device_capacity_list_header_struct_t)+sizeof(usb_device-
_current_max_capacity_descriptor_struct_t)+sizeof(usb_device_formattable_capacity_descriptor-
_struct_t)∗3]
Capacity List.
Freescale Semiconductor
USB Stack Device Reference Manual
29
USB MSC Class driver
3.5.2.2.8 struct usb_device_msc_struct_t
Data Fields
•usb_device_handle handle
The device handle.
•usb_device_class_config_struct_t ∗configurationStruct
The configuration of the class.
•usb_device_interface_struct_t ∗interfaceHandle
Current interface handle.
• uint32_t transferRemaining
Transfer remaining data.
• uint32_t currentOffset
Current address offset.
• uint32_t totalLogicalBlockNumber
Total logical block number of device.
• uint32_t lengthOfEachLba
Length of logical block.
• uint32_t implementingDiskDrive
Disk drive.
• uint32_t bulkInBufferSize
Bulk in buffer size.
• uint32_t bulkOutBufferSize
Bulk out buffer size.
•usb_device_msc_cbw_t mscCbw
CBW structure.
•usb_device_msc_csw_t mscCsw
CSW structure.
•usb_device_msc_ufi_struct_t mscUfi
UFI command information structure.
• uint8_t dataOutFlag
CBW indicating bulk out transfer, clear this flag when data transfer done.
• uint8_t dataInFlag
CBW indicating bulk in transfer, clear this flag when data transfer done.
• uint8_t inEndpointStallFlag
In endpoint stall flag.
• uint8_t outEndpointStallFlag
Out endpoint stall flag.
• uint8_t cbwValidFlag
The CBW was received after the device had sent a CSW or after a reset ,or else it is invalid.
• uint8_t performResetRecover
Device need reset command from host.
• uint8_t performResetDoneFlag
Device has perform reset command.
• uint8_t needInStallFlag
In endpoint should be stalled.
• uint8_t needOutStallFlag
Out endpoint should be stalled.
• uint8_t cbwPrimeFlag
CBW prime flag, prime means device MSC has been ready to receive CBW, the bulk out endpoint has got
the prepared buffer.
30
USB Stack Device Reference Manual
Freescale Semiconductor
USB MSC Class driver
• uint8_t cswPrimeFlag
CSW prime flag, prime means device MSC has been ready to receive CSW, the bulk in endpoint has got the
prepared buffer.
• uint8_t stallStatus
Stall status.
• uint8_t logicalUnitNumber
Supported logical units number of device.
• uint8_t bulkInEndpoint
Bulk in endpoint number.
• uint8_t bulkOutEndpoint
Bulk out endpoint number.
• uint8_t alternate
Current alternate setting of the interface.
• uint8_t configuration
Current configuration.
• uint8_t interfaceNumber
The interface number of the class.
3.5.2.2.8.1 Field Documentation
3.5.2.2.8.1.1 uint8_t usb_device_msc_struct_t::logicalUnitNumber
See bulk only specification 3.2 Get Maximum LUN (class-specific request)
3.5.2.3 Enumeration Type Documentation
3.5.2.3.1 enum usb_devcie_msc_stall_type
Enumerator
USB_DEVICE_MSC_STALL_IN_CBW Stall in CBW.
USB_DEVICE_MSC_STALL_IN_DATA Stall in data transfer.
USB_DEVICE_MSC_STALL_IN_CSW Stall in CSW.
3.5.2.3.2 enum USB_DeviceMscEvent_t
Enumerator
kUSB_DeviceMscEventReadResponse Send data completed.
kUSB_DeviceMscEventWriteResponse Data received.
kUSB_DeviceMscEventWriteRequest Host write data.
kUSB_DeviceMscEventReadRequest Host read data.
kUSB_DeviceMscEventGetLbaInformation Get device information.
kUSB_DeviceMscEventFormatComplete Format complete.
kUSB_DeviceMscEventRemovalRequest Prevent_allow_medium_command.
kUSB_DeviceMscEventStopEjectMedia Start_stop_unit_command.
Freescale Semiconductor
USB Stack Device Reference Manual
31
USB MSC Class driver
3.5.2.4 Function Documentation
3.5.2.4.1 usb_status_t USB_DeviceMscInit ( uint8_t controllerId, usb_device_class_config_struct_t
∗config, class_handle_t ∗handle )
This function is used to initialize the MSC class.
32
USB Stack Device Reference Manual
Freescale Semiconductor
USB MSC Class driver
Parameters
controllerId The controller ID of the USB IP. See the enumeration usb_controller_index_t.
config The class configuration information.
handle An parameter used to return pointer of the MSC class handle to the caller.
Returns
A USB error code or kStatus_USB_Success.
3.5.2.4.2 usb_status_t USB_DeviceMscDeinit ( class_handle_t handle )
The function deinitializes the device MSC class.
Parameters
handle The MSC class handle received from usb_device_class_config_struct_t::classHandle.
Returns
A USB error code or kStatus_USB_Success.
Freescale Semiconductor
USB Stack Device Reference Manual
33
USB MSC Class driver
3.5.3 USB MSC UFI driver
3.5.3.1 Overview
Data Structures
• struct usb_device_inquiry_command_struct_t
UFI inquiry command structure. More...
• struct usb_device_request_sense_command_struct_t
UFI request sense command structure. More...
• struct usb_device_read_format_capacities_command_struct_t
UFI read format capacities command structure. More...
• struct usb_device_read_capacities_command_struct_t
UFI read capacities command structure. More...
• struct usb_device_read_write_10_command_struct_t
UFI read write 10 structure. More...
• struct usb_device_inquiry_data_fromat_struct_t
UFI inquiry data format structure. More...
• struct usb_device_request_sense_data_struct_t
UFI request sense data structure. More...
• struct usb_device_read_capacity_struct_t
UFI read capacity data structure. More...
• struct usb_device_read_capacity16_data_struct_t
UFI read capacity data structure. More...
• struct usb_device_capacity_list_header_struct_t
UFI capacity list header structure. More...
• struct usb_device_current_max_capacity_descriptor_struct_t
UFI current maximum capacity structure. More...
• struct usb_device_formattable_capacity_descriptor_struct_t
UFI formatting capacity structure. More...
• struct usb_device_mode_parameters_header_struct_t
UFI mode parameters header structure. More...
• struct usb_device_format_capacity_response_data_struct_t
UFI Capacity List structure. More...
Macros
• #define USB_DEVICE_MSC_UFI_NO_SENSE 0x00U
Indicates that there is no specific sense key information to be reported.
• #define USB_DEVICE_MSC_UFI_RECOVERED_ERROR 0x01U
Indicates that the last command completed successfully with some recovery action performed by the UFI
device.
• #define USB_DEVICE_MSC_UFI_NOT_READY 0x02U
Indicates that the UFI device cannot be accessed.
• #define USB_DEVICE_MSC_UFI_MEDIUM_ERROR 0x03U
Indicates that the command terminated with a non-recovered error condition that was probably caused by
a flaw in the medium or an error in the recorded data.
• #define USB_DEVICE_MSC_UFI_HARDWARE_ERROR 0x04U
Indicates that the UFI device detected a non-recoverable hardware failure while performing the command
34
USB Stack Device Reference Manual
Freescale Semiconductor
USB MSC Class driver
or during a self test.
• #define USB_DEVICE_MSC_UFI_ILLEGAL_REQUEST 0x05U
Indicates that there was an illegal parameter in the Command Packet or in the additional parameters
supplied as data for some commands.
• #define USB_DEVICE_MSC_UFI_UNIT_ATTENTION 0x06U
Indicates that the removable medium may have been changed or the UFI device has been reset.
• #define USB_DEVICE_MSC_UFI_DATA_PROTECT 0x07U
Indicates that a command that writes the medium was attempted on a block that is protected from this
operation.
• #define USB_DEVICE_MSC_UFI_BLANK_CHECK 0x08U
Indicates that a write-once device or a sequential-access device encountered blank medium or format-
defined end-of-data indication while reading or a write-once device encountered a non-blank medium
while writing.
• #define USB_DEVICE_MSC_UFI_VENDOR_SPECIFIC_ERROR 0x09U
This sense key is available for reporting vendor specific conditions.
• #define USB_DEVICE_MSC_UFI_ABORTED_COMMAND 0x0BU
Indicates that the UFI device has aborted the command The host may be able to recover by trying the
command again.
• #define USB_DEVICE_MSC_UFI_VOLUME_OVERFLOW 0x0DU
Indicates that a buffered peripheral device has reached the end-of-partition and data may remain in the
buffer that has not been written to the medium.
• #define USB_DEVICE_MSC_UFI_MISCOMPARE 0x0EU
Indicates that the source data did not match the data read from the medium.
• #define USB_DEVICE_MSC_UFI_INVALID_COMMAND_OPCODE 0x20U
Invalid command operation code.
• #define USB_DEVICE_MSC_UFI_WRITE_FAULT 0x03U
Write fault.
• #define USB_DEVICE_MSC_UFI_UNRECOVERED_READ_ERROR 0x11U
Not recovered read error.
• #define USB_DEVICE_MSC_UFI_UNKNOWN_ERROR 0xFFU
Unknown error.
• #define USB_DEVICE_MSC_UFI_INVALID_FIELD_IN_COMMAND_PKT 0x24U
Invalid field in command packet.
• #define USB_DEVICE_MSC_UFI_LBA_OUT_OF_RANGE 0x21U
Invalid logical block address out of range.
• #define USB_DEVICE_MSC_UFI_REQ_SENSE_VALID_ERROR_CODE 0x70U
Valid error code, 70h indicate current errors.
• #define USB_DEVICE_MSC_UFI_REQ_SENSE_ADDITIONAL_SENSE_LEN 0x0AU
The UFI device sets the value of this field to ten, to indicate that ten more bytes of sense data follow this
field.
• #define USB_DEVICE_MSC_UFI_PREVENT_ALLOW_REMOVAL_MASK 0x01U
Prevent media removal flag.
• #define USB_DEVICE_MSC_UFI_LOAD_EJECT_START_MASK 0x03U
LoEj Start flag.
• #define USB_DEVICE_MSC_UFI_FORMATTED_MEDIA 0x02U
Formatted Media - Current media capacity.
• #define USB_DEVICE_MSC_UFI_UNFORMATTED_MEDIA 0x01U
Unformatted Media - Maximum formatting capacity for this cartridge.
• #define USB_DEVICE_MSC_UFI_NO_CARTRIDGE_IN_DRIVE 0x03U
No Cartridge in Drive - Maximum formating capacity for any cartridge.
• #define USB_DEVICE_MSC_UFI_INQUIRY_ALLOCATION_LENGTH 0x24U
Freescale Semiconductor
USB Stack Device Reference Manual
35
USB MSC Class driver
INQUIRY Data length of INQUIRY Command.
• #define USB_DEVICE_MSC_UFI_REQ_SENSE_DATA_LENGTH 18U
Request Sense Data length of REQUEST SENSE Command.
• #define USB_DEVICE_MSC_UFI_READ_CAPACITY_DATA_LENGTH 0x08U
READ CAPACITY Data length of READ CAPACITY Command.
• #define USB_DEVICE_MSC_UFI_READ_CAPACITY16_DATA_LENGTH 0x0CU
READ CAPACITY Data length of READ CAPACITY Command.
• #define USB_DEVICE_MSC_UFI_PERIPHERAL_QUALIFIER 0U
Reserved.
• #define USB_DEVICE_MSC_UFI_PERIPHERAL_QUALIFIER_SHIFT 5U
Peripheral Device Type shift.
• #define USB_DEVICE_MSC_UFI_VERSIONS 4U
Version value.
• #define USB_DEVICE_MSC_UFI_PERIPHERAL_DEVICE_TYPE 0x00U
Peripheral Device Type value of INQUIRY Data.
• #define USB_DEVICE_MSC_UFI_REMOVABLE_MEDIUM_BIT 1U
Removable Media Bit value, this shall be set to one to indicate removable media.
• #define USB_DEVICE_MSC_UFI_REMOVABLE_MEDIUM_BIT_SHIFT 7U
Removable Media Bit shift.
• #define USB_DEVICE_MSC_UFI_ADDITIONAL_LENGTH 0x20U
Additional Length.
3.5.3.2 Data Structure Documentation
3.5.3.2.1 struct usb_device_inquiry_command_struct_t
Data Fields
• uint8_t operationCode
Operation Code.
• uint8_t logicalUnitNumber
Specifies the logical unit (0∼7) for which Inquiry data should be returned.
• uint8_t pageCode
Page Code.
• uint8_t reserved
Reserved.
• uint8_t allocationLength
Specifies the maximum number of bytes of inquiry data to be returned.
• uint8_t reserved1 [7]
Reserved.
3.5.3.2.2 struct usb_device_request_sense_command_struct_t
Data Fields
• uint8_t operationCode
Operation Code.
• uint8_t logicalUnitNumber
Logical Unit Number.
36
USB Stack Device Reference Manual
Freescale Semiconductor
USB MSC Class driver
• uint8_t reserved [2]
reserved
• uint8_t allocationLength
Allocation Length.
• uint8_t reserved1 [7]
reserved
3.5.3.2.3 struct usb_device_read_format_capacities_command_struct_t
Data Fields
• uint8_t operationCode
Operation Code.
• uint8_t logicalUnitNumber
Logical Unit Number.
• uint8_t reserved [5]
reserved
• uint16_t allocationLength
Allocation Length.
• uint8_t reserved1 [3]
reserved
3.5.3.2.4 struct usb_device_read_capacities_command_struct_t
Data Fields
• uint8_t operationCode
Operation Code.
• uint8_t logicalUnitNumber
Logical Unit Number.
• uint32_t lba
Logical Block Address.
• uint8_t reserved [2]
Reserved.
• uint8_t pmi
This bit should be set to zero for UFI.
• uint8_t reserved1 [3]
Reserved.
3.5.3.2.5 struct usb_device_read_write_10_command_struct_t
Data Fields
• uint8_t operationCode
Operation Code.
• uint8_t lunDpoFuaReladr
Logical Unit Number DPO FUA RelAdr.
• uint32_t lba
Freescale Semiconductor
USB Stack Device Reference Manual
37
USB MSC Class driver
Logical Block Address.
• uint8_t reserved
Reserved.
• uint8_t transferLengthMsb
Transfer Length (MSB)
• uint8_t transferLengthLsb
Transfer Length (LSB)
• uint8_t reserved1 [3]
Reserved.
3.5.3.2.6 struct usb_device_inquiry_data_fromat_struct_t
Data Fields
• uint8_t peripheralDeviceType
Peripheral Device Type.
• uint8_t rmb
Removable Media Bit.
• uint8_t versions
ISO Version, ECMA Version, ANSI Version.
• uint8_t responseDataFormat
Response Data Format.
• uint8_t additionalLength
The Additional Length field shall specify the length in bytes of the parameters.
• uint8_t reserved [3]
reserved
• uint8_t vendorInformatin [8]
Vendor Identification.
• uint8_t productId [16]
Product Identification.
• uint8_t productVersionLevel [4]
Product Revision Level.
3.5.3.2.7 struct usb_device_request_sense_data_struct_t
Data Fields
• uint8_t validErrorCode
Error Code.
• uint8_t reserved
reserved
• uint8_t senseKey
Sense Key.
• uint8_t information [4]
Information.
• uint8_t additionalSenseLength
Additional Sense Length.
• uint8_t reserved1 [4]
reserved
38
USB Stack Device Reference Manual
Freescale Semiconductor
USB MSC Class driver
• uint8_t additionalSenseCode
Additional Sense Code.
• uint8_t additionalSenseQualifer
Additional Sense Code Qualifier.
• uint8_t reserved2 [4]
reserved
3.5.3.2.8 struct usb_device_read_capacity_struct_t
Data Fields
• uint32_t lastLogicalBlockAddress
Last Logical Block Address.
• uint32_t blockSize
Block Length In Bytes.
3.5.3.2.9 struct usb_device_read_capacity16_data_struct_t
Data Fields
• uint32_t lastLogicalBlockAddress0
Last Logical Block Address.
• uint32_t lastLogicalBlockAddress1
Last Logical Block Address.
• uint32_t blockSize
Block Length In Bytes.
3.5.3.2.10 struct usb_device_capacity_list_header_struct_t
Data Fields
• uint8_t reserverd [3]
reserved
• uint8_t capacityListLength
Capacity List Length.
3.5.3.2.11 struct usb_device_current_max_capacity_descriptor_struct_t
Data Fields
• uint32_t blockNumber
Number of Blocks.
• uint32_t descriptorCodeBlockLength
Byte 4 Descriptor Code , byte 5-7 Block Length.
Freescale Semiconductor
USB Stack Device Reference Manual
39
USB MSC Class driver
3.5.3.2.12 struct usb_device_formattable_capacity_descriptor_struct_t
Data Fields
• uint32_t blockNumber
Number of Blocks.
• uint32_t blockLength
Block Length.
3.5.3.2.13 struct usb_device_mode_parameters_header_struct_t
Data Fields
• uint16_t modeDataLength
Mode Data Length.
• uint8_t mediumTypeCode
The Medium Type Code field specifies the inserted medium type.
• uint8_t wpDpfua
WP and DPOFUA bit.
• uint8_t reserved [4]
Reserved.
3.5.3.2.14 struct usb_device_format_capacity_response_data_struct_t
Data Fields
• uint8_t capacityListHead [sizeof(usb_device_capacity_list_header_struct_t)]
Capacity List Header.
• uint8_t currentMaxCapacityDesccriptor [sizeof(usb_device_current_max_capacity_descriptor_-
struct_t)]
Current/Maximum Capacity Header.
• uint8_t formattableCapacityDesccriptor [sizeof(usb_device_formattable_capacity_descriptor_-
struct_t)∗3]
Formatting Capacity Descriptor.
40
USB Stack Device Reference Manual
Freescale Semiconductor
USB CDC Class driver
3.6 USB CDC Class driver
3.6.1 Overview
The USB communications device class (or USB CDC) is a composite Universal Serial Bus device class.
The class may include more than one interface, such as a custom control interface, data interface, audio,
or mass storage related interfaces. The Kinetis SDK USB stack provides support for CDC ACM, which
is defined in CDC PSTN Subclass. In addition, the Microsoft RNDIS is also implemented upon the CDC
ACM driver.
Modules
•USB CDC ACM Class driver
•USB CDC RNDIS driver
Freescale Semiconductor
USB Stack Device Reference Manual
41
USB CDC Class driver
3.6.2 USB CDC ACM Class driver
3.6.2.1 Overview
This section describes the programming interface of the USB CDC ACM class driver. The USB CDC
ACM class driver handles the specific control requests for CDC ACM, transfers data packets to and from
the host through the bulk pipe, as well as provides notification to host through the interrupt pipe.
3.6.2.2 USB CDC ACM Device structures
The driver uses an instantiation of the usb_device_cdc_acm_struct_t structure to maintain the current state
of a particular USB CDC ACM instance module driver. This structure holds the USB device handle and
keeps track of the configuration value, alternate setting, pipes and interfaces that are enumerated for this
USB ACM device.
The USB CDC ACM class driver populates the structure members.
3.6.2.3 USB CDC ACM Initialization
The usb_device_cdc_acm_init is called from usb_device_class_init when it matches the class type of CDC
with the one in configure structure passed from application. In this function it will associate the configure
structure with the USB CDC ACM device, resets the configuration value and creates mutex for each pipe.
3.6.2.4 USB CDC ACM Endpoint Initialization
After the enumeration procedure is done, all the endpoints other than the control endpoint will be initial-
ized with its own attributes, e.g., endpoint address, transfer type and maximum packet size. Most of the
attributes can be drawn from the configure structure. Each endpoint will be assigned a callback function
to serve the corresponding event.
3.6.2.5 USB CDC ACM Event Handling
The usb_device_cdc_acm_event is called from usb_device_class_event when there occurs a class specific
event and it matches the class type of CDC with the one in configure structure. For some events which need
to notify the application, the callback function defined in application will be invoked with the dedicated
event type.
3.6.2.6 USB CDC ACM Send data
The usb_device_cdc_acm_send is called to send packet to host through the bulk pipe. Users need to
specify the USB CDC ACM class handle, the endpoint address, the buffer address and the length of the
42
USB Stack Device Reference Manual
Freescale Semiconductor
USB CDC Class driver
buffer to prime a sending transfer. Note that the transfer is initiated by the host so this transfer is not
accomplished until the kUsbDeviceCdcEventSendResponse event occurs.
It allows only one transfer at a time, so the call to usb_device_cdc_acm_send will return kStatus_USB_-
Busy if the previous transfer is not done yet.
3.6.2.7 USB CDC ACM Receive data
The usb_device_cdc_acm_recv is called to receive packet from host through the bulk pipe. Users need to
specify the USB CDC ACM class handle, the endpoint address, the buffer address and the length of the
buffer to prime a receiving transfer. Note that the transfer is initiated by the host so this transfer is not
accomplished until the kUsbDeviceCdcEventRecvResponse event occurs.
It allows only one transfer at a time, so the call to usb_device_cdc_acm_send will return kStatus_USB_-
Busy if the previous transfer is not done yet.
Data Structures
• struct usb_device_cdc_acm_request_param_struct_t
Definition of parameters for CDC ACM request. More...
• struct usb_device_cdc_acm_pipe_t
Definition of pipe structure. More...
• struct usb_device_cdc_acm_struct_t
Definition of structure for CDC ACM device. More...
Macros
• #define USB_DEVICE_CONFIG_CDC_ACM_MAX_INSTANCE (1)
The maximum number of CDC device instance.
• #define USB_DEVICE_CONFIG_CDC_COMM_CLASS_CODE (0x02)
The CDC communication class code.
• #define USB_DEVICE_CONFIG_CDC_DATA_CLASS_CODE (0x0A)
The CDC data class code.
• #define USB_DEVICE_CDC_REQUEST_SEND_ENCAPSULATED_COMMAND (0x00)
The CDC class request code for SEND_ENCAPSULATED_COMMAND.
• #define USB_DEVICE_CDC_REQUEST_GET_ENCAPSULATED_RESPONSE (0x01)
The CDC class request code for GET_ENCAPSULATED_RESPONSE.
• #define USB_DEVICE_CDC_REQUEST_SET_COMM_FEATURE (0x02)
The CDC class request code for SET_COMM_FEATURE.
• #define USB_DEVICE_CDC_REQUEST_GET_COMM_FEATURE (0x03)
The CDC class request code for GET_COMM_FEATURE.
• #define USB_DEVICE_CDC_REQUEST_CLEAR_COMM_FEATURE (0x04)
The CDC class request code for CLEAR_COMM_FEATURE.
• #define USB_DEVICE_CDC_REQUEST_SET_AUX_LINE_STATE (0x10)
The CDC class request code for SET_AUX_LINE_STATE.
• #define USB_DEVICE_CDC_REQUEST_SET_HOOK_STATE (0x11)
The CDC class request code for SET_HOOK_STATE.
• #define USB_DEVICE_CDC_REQUEST_PULSE_SETUP (0x12)
Freescale Semiconductor
USB Stack Device Reference Manual
43
USB CDC Class driver
The CDC class request code for PULSE_SETUP.
• #define USB_DEVICE_CDC_REQUEST_SEND_PULSE (0x13)
The CDC class request code for SEND_PULSE.
• #define USB_DEVICE_CDC_REQUEST_SET_PULSE_TIME (0x14)
The CDC class request code for SET_PULSE_TIME.
• #define USB_DEVICE_CDC_REQUEST_RING_AUX_JACK (0x15)
The CDC class request code for RING_AUX_JACK.
• #define USB_DEVICE_CDC_REQUEST_SET_LINE_CODING (0x20)
The CDC class request code for SET_LINE_CODING.
• #define USB_DEVICE_CDC_REQUEST_GET_LINE_CODING (0x21)
The CDC class request code for GET_LINE_CODING.
• #define USB_DEVICE_CDC_REQUEST_SET_CONTROL_LINE_STATE (0x22)
The CDC class request code for SET_CONTROL_LINE_STATE.
• #define USB_DEVICE_CDC_REQUEST_SEND_BREAK (0x23)
The CDC class request code for SEND_BREAK.
• #define USB_DEVICE_CDC_REQUEST_SET_RINGER_PARAMS (0x30)
The CDC class request code for SET_RINGER_PARAMS.
• #define USB_DEVICE_CDC_REQUEST_GET_RINGER_PARAMS (0x31)
The CDC class request code for GET_RINGER_PARAMS.
• #define USB_DEVICE_CDC_REQUEST_SET_OPERATION_PARAM (0x32)
The CDC class request code for SET_OPERATION_PARAM.
• #define USB_DEVICE_CDC_REQUEST_GET_OPERATION_PARAM (0x33)
The CDC class request code for GET_OPERATION_PARAM.
• #define USB_DEVICE_CDC_REQUEST_SET_LINE_PARAMS (0x34)
The CDC class request code for SET_LINE_PARAMS.
• #define USB_DEVICE_CDC_REQUEST_GET_LINE_PARAMS (0x35)
The CDC class request code for GET_LINE_PARAMS.
• #define USB_DEVICE_CDC_REQUEST_DIAL_DIGITS (0x36)
The CDC class request code for DIAL_DIGITS.
• #define USB_DEVICE_CDC_REQUEST_SET_UNIT_PARAMETER (0x37)
The CDC class request code for SET_UNIT_PARAMETER.
• #define USB_DEVICE_CDC_REQUEST_GET_UNIT_PARAMETER (0x38)
The CDC class request code for GET_UNIT_PARAMETER.
• #define USB_DEVICE_CDC_REQUEST_CLEAR_UNIT_PARAMETER (0x39)
The CDC class request code for CLEAR_UNIT_PARAMETER.
• #define USB_DEVICE_CDC_REQUEST_SET_ETHERNET_MULTICAST_FILTERS (0x40)
The CDC class request code for SET_ETHERNET_MULTICAST_FILTERS.
• #define USB_DEVICE_CDC_REQUEST_SET_ETHERNET_POW_PATTER_FILTER (0x41)
The CDC class request code for SET_ETHERNET_POW_PATTER_FILTER.
• #define USB_DEVICE_CDC_REQUEST_GET_ETHERNET_POW_PATTER_FILTER (0x42)
The CDC class request code for GET_ETHERNET_POW_PATTER_FILTER.
• #define USB_DEVICE_CDC_REQUEST_SET_ETHERNET_PACKET_FILTER (0x43)
The CDC class request code for SET_ETHERNET_PACKET_FILTER.
• #define USB_DEVICE_CDC_REQUEST_GET_ETHERNET_STATISTIC (0x44)
The CDC class request code for GET_ETHERNET_STATISTIC.
• #define USB_DEVICE_CDC_REQUEST_SET_ATM_DATA_FORMAT (0x50)
The CDC class request code for SET_ATM_DATA_FORMAT.
• #define USB_DEVICE_CDC_REQUEST_GET_ATM_DEVICE_STATISTICS (0x51)
The CDC class request code for GET_ATM_DEVICE_STATISTICS.
• #define USB_DEVICE_CDC_REQUEST_SET_ATM_DEFAULT_VC (0x52)
The CDC class request code for SET_ATM_DEFAULT_VC.
44
USB Stack Device Reference Manual
Freescale Semiconductor
USB CDC Class driver
• #define USB_DEVICE_CDC_REQUEST_GET_ATM_VC_STATISTICS (0x53)
The CDC class request code for GET_ATM_VC_STATISTICS.
• #define USB_DEVICE_CDC_REQUEST_MDLM_SPECIFIC_REQUESTS_MASK (0x7F)
The CDC class request code for MDLM_SPECIFIC_REQUESTS_MASK.
• #define USB_DEVICE_CDC_NOTIF_NETWORK_CONNECTION (0x00)
The CDC class notify code for NETWORK_CONNECTION.
• #define USB_DEVICE_CDC_NOTIF_RESPONSE_AVAIL (0x01)
The CDC class notify code for RESPONSE_AVAIL.
• #define USB_DEVICE_CDC_NOTIF_AUX_JACK_HOOK_STATE (0x08)
The CDC class notify code for AUX_JACK_HOOK_STATE.
• #define USB_DEVICE_CDC_NOTIF_RING_DETECT (0x09)
The CDC class notify code for RING_DETECT.
• #define USB_DEVICE_CDC_NOTIF_SERIAL_STATE (0x20)
The CDC class notify code for SERIAL_STATE.
• #define USB_DEVICE_CDC_NOTIF_CALL_STATE_CHANGE (0x28)
The CDC class notify code for CALL_STATE_CHANGE.
• #define USB_DEVICE_CDC_NOTIF_LINE_STATE_CHANGE (0x29)
The CDC class notify code for LINE_STATE_CHANGE.
• #define USB_DEVICE_CDC_NOTIF_CONNECTION_SPEED_CHANGE (0x2A)
The CDC class notify code for CONNECTION_SPEED_CHANGE.
• #define USB_DEVICE_CDC_FEATURE_ABSTRACT_STATE (0x01)
The CDC class feature select code for ABSTRACT_STATE.
• #define USB_DEVICE_CDC_FEATURE_COUNTRY_SETTING (0x02)
The CDC class feature select code for COUNTRY_SETTING.
• #define USB_DEVICE_CDC_CONTROL_SIG_BITMAP_CARRIER_ACTIVATION (0x02)
The CDC class control signal bitmap value for CARRIER_ACTIVATION.
• #define USB_DEVICE_CDC_CONTROL_SIG_BITMAP_DTE_PRESENCE (0x01)
The CDC class control signal bitmap value for DTE_PRESENCE.
• #define USB_DEVICE_CDC_UART_STATE_RX_CARRIER (0x01)
The UART state bitmap value of RX_CARRIER.
• #define USB_DEVICE_CDC_UART_STATE_TX_CARRIER (0x02)
The UART state bitmap value of TX_CARRIER.
• #define USB_DEVICE_CDC_UART_STATE_BREAK (0x04)
The UART state bitmap value of BREAK.
• #define USB_DEVICE_CDC_UART_STATE_RING_SIGNAL (0x08)
The UART state bitmap value of RING_SIGNAL.
• #define USB_DEVICE_CDC_UART_STATE_FRAMING (0x10)
The UART state bitmap value of FRAMING.
• #define USB_DEVICE_CDC_UART_STATE_PARITY (0x20)
The UART state bitmap value of PARITY.
• #define USB_DEVICE_CDC_UART_STATE_OVERRUN (0x40)
The UART state bitmap value of OVERRUN.
Freescale Semiconductor
USB Stack Device Reference Manual
45
USB CDC Class driver
Enumerations
• enum usb_device_cdc_acm_event_t {
kUSB_DeviceCdcEventSendResponse = 0x01,
kUSB_DeviceCdcEventRecvResponse,
kUSB_DeviceCdcEventSerialStateNotif,
kUSB_DeviceCdcEventSendEncapsulatedCommand,
kUSB_DeviceCdcEventGetEncapsulatedResponse,
kUSB_DeviceCdcEventSetCommFeature,
kUSB_DeviceCdcEventGetCommFeature,
kUSB_DeviceCdcEventClearCommFeature,
kUSB_DeviceCdcEventGetLineCoding,
kUSB_DeviceCdcEventSetLineCoding,
kUSB_DeviceCdcEventSetControlLineState,
kUSB_DeviceCdcEventSendBreak }
Definition of CDC class event.
USB CDC ACM Class Driver
•usb_status_t USB_DeviceCdcAcmInit (uint8_t controllerId, usb_device_class_config_struct_t
∗config, class_handle_t ∗handle)
Initializes the USB CDC ACM class.
•usb_status_t USB_DeviceCdcAcmDeinit (class_handle_t handle)
Deinitializes the USB CDC ACM class.
•usb_status_t USB_DeviceCdcAcmEvent (void ∗handle, uint32_t event, void ∗param)
Handles the CDC ACM class event.
•usb_status_t USB_DeviceCdcAcmSend (class_handle_t handle, uint8_t ep, uint8_t ∗buffer, uint32-
_t length)
Primes the endpoint to send packet to host.
•usb_status_t USB_DeviceCdcAcmRecv (class_handle_t handle, uint8_t ep, uint8_t ∗buffer, uint32-
_t length)
Primes the endpoint to receive packet from host.
3.6.2.8 Data Structure Documentation
3.6.2.8.1 struct usb_device_cdc_acm_request_param_struct_t
Data Fields
• uint8_t ∗∗ buffer
The pointer to the address of the buffer for CDC class request.
• uint32_t ∗length
The pointer to the length of the buffer for CDC class request.
• uint16_t interfaceIndex
The interface index of the setup packet.
• uint16_t setupValue
The wValue field of the setup packet.
46
USB Stack Device Reference Manual
Freescale Semiconductor
USB CDC Class driver
• uint8_t isSetup
The flag indicates if it is a setup packet, 1: yes, 0: no.
3.6.2.8.1.1 Field Documentation
3.6.2.8.1.1.1 uint8_t∗∗ usb_device_cdc_acm_request_param_struct_t::buffer
3.6.2.8.1.1.2 uint32_t∗usb_device_cdc_acm_request_param_struct_t::length
3.6.2.8.1.1.3 uint16_t usb_device_cdc_acm_request_param_struct_t::interfaceIndex
3.6.2.8.1.1.4 uint16_t usb_device_cdc_acm_request_param_struct_t::setupValue
3.6.2.8.1.1.5 uint8_t usb_device_cdc_acm_request_param_struct_t::isSetup
3.6.2.8.2 struct usb_device_cdc_acm_pipe_t
Data Fields
•usb_osa_mutex_handle mutex
The mutex of the pipe.
• uint8_t ep
The endpoint number of the pipe.
• uint8_t isBusy
1: The pipe is transferring packet, 0: The pipe is idle.
3.6.2.8.2.1 Field Documentation
3.6.2.8.2.1.1 usb_osa_mutex_handle usb_device_cdc_acm_pipe_t::mutex
3.6.2.8.2.1.2 uint8_t usb_device_cdc_acm_pipe_t::ep
3.6.2.8.2.1.3 uint8_t usb_device_cdc_acm_pipe_t::isBusy
3.6.2.8.3 struct usb_device_cdc_acm_struct_t
Data Fields
•usb_device_handle handle
The handle of the USB device.
•usb_device_class_config_struct_t ∗configStruct
The class configure structure.
•usb_device_interface_struct_t ∗commInterfaceHandle
The CDC communication interface handle.
•usb_device_interface_struct_t ∗dataInterfaceHandle
The CDC data interface handle.
•usb_device_cdc_acm_pipe_t bulkIn
The bulk in pipe for sending packet to host.
•usb_device_cdc_acm_pipe_t bulkOut
The bulk out pipe for receiving packet from host.
•usb_device_cdc_acm_pipe_t interruptIn
Freescale Semiconductor
USB Stack Device Reference Manual
47
USB CDC Class driver
The interrupt in pipe for notifying the device state to host.
• uint8_t configuration
The current configuration value.
• uint8_t interfaceNumber
The current interface number.
• uint8_t alternate
The alternate setting value of the interface.
• uint8_t hasSentState
1: The device has primed the state in interrupt pipe, 0: Not primed the state.
48
USB Stack Device Reference Manual
Freescale Semiconductor
USB CDC Class driver
Freescale Semiconductor
USB Stack Device Reference Manual
49
USB CDC Class driver
3.6.2.8.3.1 Field Documentation
3.6.2.8.3.1.1 usb_device_handle usb_device_cdc_acm_struct_t::handle
3.6.2.8.3.1.2 usb_device_class_config_struct_t∗usb_device_cdc_acm_struct_t::configStruct
3.6.2.8.3.1.3 usb_device_interface_struct_t∗usb_device_cdc_acm_struct_t::commInterface-
Handle
3.6.2.8.3.1.4 usb_device_interface_struct_t∗usb_device_cdc_acm_struct_t::dataInterfaceHandle
3.6.2.8.3.1.5 usb_device_cdc_acm_pipe_t usb_device_cdc_acm_struct_t::bulkIn
3.6.2.8.3.1.6 usb_device_cdc_acm_pipe_t usb_device_cdc_acm_struct_t::bulkOut
3.6.2.8.3.1.7 usb_device_cdc_acm_pipe_t usb_device_cdc_acm_struct_t::interruptIn
3.6.2.8.3.1.8 uint8_t usb_device_cdc_acm_struct_t::configuration
3.6.2.8.3.1.9 uint8_t usb_device_cdc_acm_struct_t::interfaceNumber
3.6.2.8.3.1.10 uint8_t usb_device_cdc_acm_struct_t::alternate
3.6.2.8.3.1.11 uint8_t usb_device_cdc_acm_struct_t::hasSentState
3.6.2.9 Macro Definition Documentation
3.6.2.9.1 #define USB_DEVICE_CONFIG_CDC_ACM_MAX_INSTANCE (1)
3.6.2.9.2 #define USB_DEVICE_CONFIG_CDC_COMM_CLASS_CODE (0x02)
3.6.2.9.3 #define USB_DEVICE_CONFIG_CDC_DATA_CLASS_CODE (0x0A)
3.6.2.9.4 #define USB_DEVICE_CDC_REQUEST_SEND_ENCAPSULATED_COMMAND (0x00)
3.6.2.9.5 #define USB_DEVICE_CDC_REQUEST_GET_ENCAPSULATED_RESPONSE (0x01)
3.6.2.9.6 #define USB_DEVICE_CDC_REQUEST_SET_COMM_FEATURE (0x02)
3.6.2.9.7 #define USB_DEVICE_CDC_REQUEST_GET_COMM_FEATURE (0x03)
3.6.2.9.8 #define USB_DEVICE_CDC_REQUEST_CLEAR_COMM_FEATURE (0x04)
3.6.2.9.9 #define USB_DEVICE_CDC_REQUEST_SET_AUX_LINE_STATE (0x10)
3.6.2.9.10 #define USB_DEVICE_CDC_REQUEST_SET_HOOK_STATE (0x11)
3.6.2.9.11 #define USB_DEVICE_CDC_REQUEST_PULSE_SETUP (0x12)
3.6.2.9.12 #define USB_DEVICE_CDC_REQUEST_SEND_PULSE (0x13)
3.6.2.9.13 #define USB_DEVICE_CDC_REQUEST_SET_PULSE_TIME (0x14)
3.6.2.9.14 #define USB_DEVICE_CDC_REQUEST_RING_AUX_JACK (0x15)
3.6.2.9.15 #define USB_DEVICE_CDC_REQUEST_SET_LINE_CODING (0x20)
3.6.2.9.16 #define USB_DEVICE_CDC_REQUEST_GET_LINE_CODING (0x21)
3.6.2.9.17 #define USB_DEVICE_CDC_REQUEST_SET_CONTROL_LINE_STATE (0x22)
3.6.2.9.18 #define USB_DEVICE_CDC_REQUEST_SEND_BREAK (0x23)
3.6.2.9.19 #define USB_DEVICE_CDC_REQUEST_SET_RINGER_PARAMS (0x30)
3.6.2.9.20 #define USB_DEVICE_CDC_REQUEST_GET_RINGER_PARAMS (0x31)
3.6.2.9.21 #define USB_DEVICE_CDC_REQUEST_SET_OPERATION_PARAM (0x32)
3.6.2.9.22 #define USB_DEVICE_CDC_REQUEST_GET_OPERATION_PARAM (0x33)
3.6.2.9.23 #define USB_DEVICE_CDC_REQUEST_SET_LINE_PARAMS (0x34)
3.6.2.9.24 #define USB_DEVICE_CDC_REQUEST_GET_LINE_PARAMS (0x35)
3.6.2.9.25 #define USB_DEVICE_CDC_REQUEST_DIAL_DIGITS (0x36)
3.6.2.9.26 #define USB_DEVICE_CDC_REQUEST_SET_UNIT_PARAMETER (0x37)
3.6.2.9.27 #define USB_DEVICE_CDC_REQUEST_GET_UNIT_PARAMETER (0x38)
3.6.2.9.28 #define USB_DEVICE_CDC_REQUEST_CLEAR_UNIT_PARAMETER (0x39)
3.6.2.9.29 #define USB_DEVICE_CDC_REQUEST_SET_ETHERNET_MULTICAST_FILTERS (0x40)
3.6.2.9.30 #define USB_DEVICE_CDC_REQUEST_SET_ETHERNET_POW_PATTER_FILTER (0x41)
3.6.2.9.31 #define USB_DEVICE_CDC_REQUEST_GET_ETHERNET_POW_PATTER_FILTE-
R (0x42)
3.6.2.9.32 #define USB_DEVICE_CDC_REQUEST_SET_ETHERNET_PACKET_FILTER (0x43)
3.6.2.9.33 #define USB_DEVICE_CDC_REQUEST_GET_ETHERNET_STATISTIC (0x44)
3.6.2.9.34 #define USB_DEVICE_CDC_REQUEST_SET_ATM_DATA_FORMAT (0x50)
3.6.2.9.35 #define USB_DEVICE_CDC_REQUEST_GET_ATM_DEVICE_STATISTICS (0x51)
3.6.2.9.36 #define USB_DEVICE_CDC_REQUEST_SET_ATM_DEFAULT_VC (0x52)
3.6.2.9.37 #define USB_DEVICE_CDC_REQUEST_GET_ATM_VC_STATISTICS (0x53)
3.6.2.9.38 #define USB_DEVICE_CDC_REQUEST_MDLM_SPECIFIC_REQUESTS_MASK (0x7F)
3.6.2.9.39 #define USB_DEVICE_CDC_NOTIF_NETWORK_CONNECTION (0x00)
3.6.2.9.40 #define USB_DEVICE_CDC_NOTIF_RESPONSE_AVAIL (0x01)
3.6.2.9.41 #define USB_DEVICE_CDC_NOTIF_AUX_JACK_HOOK_STATE (0x08)
3.6.2.9.42 #define USB_DEVICE_CDC_NOTIF_RING_DETECT (0x09)
3.6.2.9.43 #define USB_DEVICE_CDC_NOTIF_SERIAL_STATE (0x20)
3.6.2.9.44 #define USB_DEVICE_CDC_NOTIF_CALL_STATE_CHANGE (0x28)
3.6.2.9.45 #define USB_DEVICE_CDC_NOTIF_LINE_STATE_CHANGE (0x29)
3.6.2.9.46 #define USB_DEVICE_CDC_NOTIF_CONNECTION_SPEED_CHANGE (0x2A)
3.6.2.9.47 #define USB_DEVICE_CDC_FEATURE_ABSTRACT_STATE (0x01)
3.6.2.9.48 #define USB_DEVICE_CDC_FEATURE_COUNTRY_SETTING (0x02)
3.6.2.9.49 #define USB_DEVICE_CDC_CONTROL_SIG_BITMAP_CARRIER_ACTIVATION (0x02)
3.6.2.9.50 #define USB_DEVICE_CDC_CONTROL_SIG_BITMAP_DTE_PRESENCE (0x01)
3.6.2.9.51 #define USB_DEVICE_CDC_UART_STATE_RX_CARRIER (0x01)
3.6.2.9.52 #define USB_DEVICE_CDC_UART_STATE_TX_CARRIER (0x02)
3.6.2.9.53 #define USB_DEVICE_CDC_UART_STATE_BREAK (0x04)
3.6.2.9.54 #define USB_DEVICE_CDC_UART_STATE_RING_SIGNAL (0x08)
3.6.2.9.55 #define USB_DEVICE_CDC_UART_STATE_FRAMING (0x10)
3.6.2.9.56 #define USB_DEVICE_CDC_UART_STATE_PARITY (0x20)
3.6.2.9.57 #define USB_DEVICE_CDC_UART_STATE_OVERRUN (0x40)
3.6.2.10 Enumeration Type Documentation
3.6.2.10.1 enum usb_device_cdc_acm_event_t
Enumerator
kUSB_DeviceCdcEventSendResponse This event indicates the bulk send transfer is complete.
50
USB Stack Device Reference Manual
Freescale Semiconductor
USB CDC Class driver
kUSB_DeviceCdcEventRecvResponse This event indicates the bulk receive transfer is complete.
kUSB_DeviceCdcEventSerialStateNotif This event indicates the serial state has been sent to the
host.
kUSB_DeviceCdcEventSendEncapsulatedCommand This event indicates the device received the
SEND_ENCAPSULATED_COMMAND request.
kUSB_DeviceCdcEventGetEncapsulatedResponse This event indicates the device received the G-
ET_ENCAPSULATED_RESPONSE request.
kUSB_DeviceCdcEventSetCommFeature This event indicates the device received the SET_COM-
M_FEATURE request.
kUSB_DeviceCdcEventGetCommFeature This event indicates the device received the GET_COM-
M_FEATURE request.
kUSB_DeviceCdcEventClearCommFeature This event indicates the device received the CLEAR_-
COMM_FEATURE request.
kUSB_DeviceCdcEventGetLineCoding This event indicates the device received the GET_LINE_-
CODING request.
kUSB_DeviceCdcEventSetLineCoding This event indicates the device received the SET_LINE_C-
ODING request.
kUSB_DeviceCdcEventSetControlLineState This event indicates the device received the SET_CO-
NTRL_LINE_STATE request.
kUSB_DeviceCdcEventSendBreak This event indicates the device received the SEND_BREAK re-
quest.
3.6.2.11 Function Documentation
3.6.2.11.1 usb_status_t USB_DeviceCdcAcmInit ( uint8_t controllerId, usb_device_class_config_-
struct_t ∗config, class_handle_t ∗handle )
This function obtains a USB device handle according to the controller ID, initializes the CDC ACM class
with the class configure parameters and creates the mutex for each pipe.
Parameters
controllerId The ID of the controller. The value can be chosen from the kUSB_ControllerKhci0,
kUSB_ControllerKhci1, kUSB_ControllerEhci0, or kUSB_ControllerEhci1.
config The user configuration structure of type usb_device_class_config_struct_t. The user
populates the members of this structure and passes the pointer of this structure into
this function.
Freescale Semiconductor
USB Stack Device Reference Manual
51
USB CDC Class driver
handle It is out parameter. The class handle of the CDC ACM class.
Returns
A USB error code or kStatus_USB_Success.
Return values
kStatus_USB_Success The CDC ACM class is initialized successfully.
kStatus_USB_Busy No CDC ACM device handle available for allocation.
kStatus_USB_Invalid-
Handle
The CDC ACM device handle allocation failure.
kStatus_USB_Invalid-
Parameter
The USB device handle allocation failure.
3.6.2.11.2 usb_status_t USB_DeviceCdcAcmDeinit ( class_handle_t handle )
This function destroys the mutex for each pipe, deinitializes each endpoint of the CDC ACM class and
frees the CDC ACM class handle.
Parameters
handle The class handle of the CDC ACM class.
Returns
A USB error code or kStatus_USB_Success.
Return values
kStatus_USB_Success The CDC ACM class is de-initialized successfully.
kStatus_USB_Error The endpoint deinitialization failure.
kStatus_USB_Invalid-
Handle
The CDC ACM device handle or the CDC ACM class handle is invalid.
52
USB Stack Device Reference Manual
Freescale Semiconductor
USB CDC Class driver
kStatus_USB_Invalid-
Parameter
The endpoint number of the CDC ACM class handle is invalid.
3.6.2.11.3 usb_status_t USB_DeviceCdcAcmEvent ( void ∗handle, uint32_t event, void ∗param
)
This function responds to various events including the common device events and the class specific-events.
For class-specific events, it calls the class callback defined in the application to deal with the class-specific
event.
Parameters
handle The class handle of the CDC ACM class.
event The event type.
param The class handle of the CDC ACM class.
Returns
A USB error code or kStatus_USB_Success.
Return values
kStatus_USB_Success The CDC ACM class is de-initialized successfully.
kStatus_USB_Error The configure structure of the CDC ACM class handle is invalid.
kStatus_USB_Invalid-
Handle
The CDC ACM device handle or the CDC ACM class handle is invalid.
kStatus_USB_Invalid-
Parameter
The endpoint number of the CDC ACM class handle is invalid.
Others The error code returned by class callback in application.
3.6.2.11.4 usb_status_t USB_DeviceCdcAcmSend ( class_handle_t handle, uint8_t ep, uint8_t ∗
buffer, uint32_t length )
This function checks whether the endpoint is sending packet, then it primes the endpoint with the buffer
address and the buffer length if the pipe is not busy. Otherwise, it ignores this transfer by returning an
error code.
Freescale Semiconductor
USB Stack Device Reference Manual
53
USB CDC Class driver
Parameters
handle The class handle of the CDC ACM class.
ep The endpoint number of the transfer.
buffer The pointer to the buffer to be transferred.
length The length of the buffer to be transferred.
Returns
A USB error code or kStatus_USB_Success.
Return values
kStatus_USB_Success Prime to send packet successfully.
kStatus_USB_Busy The endpoint is busy in transferring.
kStatus_USB_Invalid-
Handle
The CDC ACM device handle or the CDC ACM class handle is invalid.
kStatus_USB_Controller-
NotFound
The controller interface is invalid.
3.6.2.11.5 usb_status_t USB_DeviceCdcAcmRecv ( class_handle_t handle, uint8_t ep, uint8_t ∗
buffer, uint32_t length )
This function checks whether the endpoint is receiving packet, then it primes the endpoint with the buffer
address and the buffer length if the pipe is not busy. Otherwise, it ignores this transfer by returning an
error code.
Parameters
handle The class handle of the CDC ACM class.
ep The endpoint number of the transfer.
buffer The pointer to the buffer to be transferred.
length The length of the buffer to be transferred.
Returns
A USB error code or kStatus_USB_Success.
54
USB Stack Device Reference Manual
Freescale Semiconductor
USB CDC Class driver
Return values
kStatus_USB_Success Prime to receive packet successfully.
kStatus_USB_Busy The endpoint is busy in transferring.
kStatus_USB_Invalid-
Handle
The CDC ACM device handle or the CDC ACM class handle is invalid.
kStatus_USB_Controller-
NotFound
The controller interface is invalid.
Freescale Semiconductor
USB Stack Device Reference Manual
55
USB CDC Class driver
3.6.3 USB CDC RNDIS driver
3.6.3.1 Overview
This section describes the programming interface of the USB CDC RNDIS driver. The USB CDC RND-
IS driver implements the various control messages and data message defined by Microsoft RNDIS. The
control messages is sent through the SEND_ENCAPSULATED_COMMAND and GET_ENCAPSULA-
TED_COMMAND CDC class request.
3.6.3.2 USB CDC RNDIS Device structures
The driver uses an instantiation of the usb_device_cdc_rndis_struct_t structure to maintain the current
state of a particular CDC RNDIS instance module driver.
The CDC RNDIS driver populates the structure members.
3.6.3.3 CDC RNDIS Initialization
The CDC RNDIS device is initialized with the configure structure of type usb_device_cdc_rndis_config-
_struct_t. It specifies the RNDIS request specific callback function and the maximum transmit size for
device. Besides, the device state, hardware state and the media status is set to their initial value.
3.6.3.4 CDC RNDIS Control Message
The control messages is sent through the SEND_ENCAPSULATED_COMMAND and GET_ENCAPS-
ULATED_COMMAND CDC class request. Take the RNDIS_INITIALIZE_MSG as an example, the host
sends a SEND_ENCAPSULATED_COMMAND request which carries the message type of RNDIS_IN-
ITIALIZE_MSG to the device, then the device sends back a notification through interrupt pipe to indicate
that the response is available. Next the host sends a GET_ENCAPSULATED_COMMAND request which
carries the message type of RNDIS_INITIALIZE_CMPLT to the device to obtain the proper information.
Data Structures
• struct rndis_init_msg_struct_t
Define message structure for REMOTE_NDIS_INITIALIZE_MSG. More...
• struct rndis_init_cmplt_struct_t
Define message structure for REMOTE_NDIS_INITIALIZE_CMPLT. More...
• struct rndis_halt_msg_struct_t
Define message structure for REMOTE_NDIS_HALT_MSG. More...
• struct rndis_query_msg_struct_t
Define message structure for REMOTE_NDIS_QUERY_MSG. More...
• struct rndis_query_cmplt_struct_t
Define message structure for REMOTE_NDIS_QUERY_CMPLT. More...
• struct rndis_set_msg_struct_t
56
USB Stack Device Reference Manual
Freescale Semiconductor
USB CDC Class driver
Define message structure for REMOTE_NDIS_SET_MSG. More...
• struct rndis_set_cmplt_struct_t
Define message structure for REMOTE_NDIS_SET_CMPLT. More...
• struct rndis_reset_msg_struct_t
Define message structure for REMOTE_NDIS_RESET_MSG. More...
• struct rndis_reset_cmplt_struct_t
Define message structure for REMOTE_NDIS_RESET_CMPLT. More...
• struct rndis_indicate_status_msg_struct_t
Define message structure for REMOTE_NDIS_INDICATE_STATUS_MSG. More...
• struct rndis_keepalive_msg_struct_t
Define message structure for REMOTE_NDIS_KEEPALIVE_MSG. More...
• struct rndis_keepalive_cmplt_struct_t
Define message structure for REMOTE_NDIS_KEEPALIVE_CMPLT. More...
• struct rndis_packet_msg_struct_t
Define message structure for RNDIS_PACKET_MSG. More...
• struct usb_device_cdc_rndis_struct_t
Define structure for CDC RNDIS device. More...
• struct usb_device_cdc_rndis_config_struct_t
Define structure for CDC RNDIS device. More...
• struct usb_device_cdc_rndis_request_param_struct_t
Define parameters for CDC RNDIS request. More...
Macros
• #define USB_DEVICE_CONFIG_CDC_RNDIS_MAX_INSTANCE (1)
The maximum number of USB CDC RNDIS device instance.
• #define RNDIS_DF_CONNECTIONLESS (0x00000001)
The Miniport driver type is connectionless.
• #define RNDIS_DF_CONNECTION_ORIENTED (0x00000002)
The Miniport driver type is connection-oriented.
• #define RNDIS_SINGLE_PACKET_TRANSFER (0x00000001)
The number of RNDIS data messages that the device can handle in a single transfer.
• #define RNDIS_PACKET_ALIGNMENT_FACTOR (0x00000003)
The byte alignment that the device expects for each RNDIS message that is part of a multimessage transfer.
• #define RNDIS_NUM_OIDS_SUPPORTED (25)
The number of OIDs the RNDIS device supported.
• #define RNDIS_VENDOR_ID (0xFFFFFF)
The vendor ID of the RNDIS device.
• #define RNDIS_NIC_IDENTIFIER_VENDOR (0x01)
A single byte that the vendor assigns to identify a particular NIC.
• #define RNDIS_MAX_EXPECTED_COMMAND_SIZE (76)
DataLength : Data length of communication feature.
• #define RNDIS_MAX_EXPECTED_RESPONSE_SIZE (RNDIS_RESPONSE_QUERY_MSG_-
SIZE + (RNDIS_NUM_OIDS_SUPPORTED << 2U))
This is the maximum observed command size we get on control endpoint – Memory for commands is
allocated at initialization, instead of being dynamically allocated when command is received to avoid
memory fragmentation.
• #define RNDIS_ETHER_ADDR_SIZE (6)
Size of Ethernet address.
• #define RNDIS_USB_HEADER_SIZE (44)
Freescale Semiconductor
USB Stack Device Reference Manual
57
USB CDC Class driver
Size of USB header for RNDIS packet.
• #define RNDIS_MULTICAST_LIST_SIZE (0)
Maximum size of multicast address list.
Enumerations
• enum ndis_physical_medium_enum_t
Physical Medium Type definitions.
• enum rndis_state_enum_t {
RNDIS_UNINITIALIZED = 0,
RNDIS_INITIALIZED,
RNDIS_DATA_INITIALIZED }
Define RNDIS device state.
• enum rndis_event_enum_t {
kUSB_DeviceCdcEventAppGetLinkSpeed,
kUSB_DeviceCdcEventAppGetSendPacketSize,
kUSB_DeviceCdcEventAppGetRecvPacketSize,
kUSB_DeviceCdcEventAppGetMacAddress,
kUSB_DeviceCdcEventAppGetLinkStatus,
kUSB_DeviceCdcEventAppGetMaxFrameSize }
Define RNDIS event.
RNDIS Control Message Type
See MSDN for details.
• #define RNDIS_PACKET_MSG (0x00000001)
• #define RNDIS_INITIALIZE_MSG (0x00000002)
• #define RNDIS_HALT_MSG (0x00000003)
• #define RNDIS_QUERY_MSG (0x00000004)
• #define RNDIS_SET_MSG (0x00000005)
• #define RNDIS_RESET_MSG (0x00000006)
• #define RNDIS_INDICATE_STATUS_MSG (0x00000007)
• #define RNDIS_KEEPALIVE_MSG (0x00000008)
• #define RNDIS_INITIALIZE_CMPLT (0x80000002)
• #define RNDIS_QUERY_CMPLT (0x80000004)
• #define RNDIS_SET_CMPLT (0x80000005)
• #define RNDIS_RESET_CMPLT (0x80000006)
• #define RNDIS_KEEPALIVE_CMPLT (0x80000008)
Object Identifiers used by NdisRequest Query/Set Information
See MSDN for details.
• #define NDIS_OID_GEN_SUPPORTED_LIST (0x00010101)
• #define NDIS_OID_GEN_HARDWARE_STATUS (0x00010102)
• #define NDIS_OID_GEN_MEDIA_SUPPORTED (0x00010103)
• #define NDIS_OID_GEN_MEDIA_IN_USE (0x00010104)
• #define NDIS_OID_GEN_MAXIMUM_LOOKAHEAD (0x00010105)
58
USB Stack Device Reference Manual
Freescale Semiconductor
USB CDC Class driver
• #define NDIS_OID_GEN_MAXIMUM_FRAME_SIZE (0x00010106)
• #define NDIS_OID_GEN_LINK_SPEED (0x00010107)
• #define NDIS_OID_GEN_TRANSMIT_BUFFER_SPACE (0x00010108)
• #define NDIS_OID_GEN_RECEIVE_BUFFER_SPACE (0x00010109)
• #define NDIS_OID_GEN_TRANSMIT_BLOCK_SIZE (0x0001010A)
• #define NDIS_OID_GEN_RECEIVE_BLOCK_SIZE (0x0001010B)
• #define NDIS_OID_GEN_VENDOR_ID (0x0001010C)
• #define NDIS_OID_GEN_VENDOR_DESCRIPTION (0x0001010D)
• #define NDIS_OID_GEN_CURRENT_PACKET_FILTER (0x0001010E)
• #define NDIS_OID_GEN_CURRENT_LOOKAHEAD (0x0001010F)
• #define NDIS_OID_GEN_DRIVER_VERSION (0x00010110)
• #define NDIS_OID_GEN_MAXIMUM_TOTAL_SIZE (0x00010111)
• #define NDIS_OID_GEN_PROTOCOL_OPTIONS (0x00010112)
• #define NDIS_OID_GEN_MAC_OPTIONS (0x00010113)
• #define NDIS_OID_GEN_MEDIA_CONNECT_STATUS (0x00010114)
• #define NDIS_OID_GEN_MAXIMUM_SEND_PACKETS (0x00010115)
• #define NDIS_OID_GEN_XMIT_OK (0x00020101)
• #define NDIS_OID_GEN_RCV_OK (0x00020102)
• #define NDIS_OID_GEN_XMIT_ERROR (0x00020103)
• #define NDIS_OID_GEN_RCV_ERROR (0x00020104)
• #define NDIS_OID_GEN_RCV_NO_BUFFER (0x00020105)
• #define NDIS_OID_GEN_DIRECTED_BYTES_XMIT (0x00020201)
• #define NDIS_OID_GEN_DIRECTED_FRAMES_XMIT (0x00020202)
• #define NDIS_OID_GEN_MULTICAST_BYTES_XMIT (0x00020203)
• #define NDIS_OID_GEN_MULTICAST_FRAMES_XMIT (0x00020204)
• #define NDIS_OID_GEN_BROADCAST_BYTES_XMIT (0x00020205)
• #define NDIS_OID_GEN_BROADCAST_FRAMES_XMIT (0x00020206)
• #define NDIS_OID_GEN_DIRECTED_BYTES_RCV (0x00020207)
• #define NDIS_OID_GEN_DIRECTED_FRAMES_RCV (0x00020208)
• #define NDIS_OID_GEN_MULTICAST_BYTES_RCV (0x00020209)
• #define NDIS_OID_GEN_MULTICAST_FRAMES_RCV (0x0002020A)
• #define NDIS_OID_GEN_BROADCAST_BYTES_RCV (0x0002020B)
• #define NDIS_OID_GEN_BROADCAST_FRAMES_RCV (0x0002020C)
• #define NDIS_OID_GEN_RCV_CRC_ERROR (0x0002020D)
• #define NDIS_OID_GEN_TRANSMIT_QUEUE_LENGTH (0x0002020E)
• #define NDIS_OID_GEN_GET_TIME_CAPS (0x0002020F)
• #define NDIS_OID_GEN_GET_NETCARD_TIME (0x00020210)
• #define NDIS_OID_802_3_PERMANENT_ADDRESS (0x01010101)
• #define NDIS_OID_802_3_CURRENT_ADDRESS (0x01010102)
• #define NDIS_OID_802_3_MULTICAST_LIST (0x01010103)
• #define NDIS_OID_802_3_MAXIMUM_LIST_SIZE (0x01010104)
• #define NDIS_OID_802_3_MAC_OPTIONS (0x01010105)
• #define NDIS_802_3_MAC_OPTION_PRIORITY (0x00000001)
• #define NDIS_OID_802_3_RCV_ERROR_ALIGNMENT (0x01020101)
• #define NDIS_OID_802_3_XMIT_ONE_COLLISION (0x01020102)
• #define NDIS_OID_802_3_XMIT_MORE_COLLISIONS (0x01020103)
• #define NDIS_OID_802_3_XMIT_DEFERRED (0x01020201)
• #define NDIS_OID_802_3_XMIT_MAX_COLLISIONS (0x01020202)
• #define NDIS_OID_802_3_RCV_OVERRUN (0x01020203)
• #define NDIS_OID_802_3_XMIT_UNDERRUN (0x01020204)
• #define NDIS_OID_802_3_XMIT_HEARTBEAT_FAILURE (0x01020205)
• #define NDIS_OID_802_3_XMIT_TIMES_CRS_LOST (0x01020206)
• #define NDIS_OID_802_3_XMIT_LATE_COLLISIONS (0x01020207)
• #define NDIS_OID_GEN_VENDOR_DRIVER_VERSION (0x00010116)
• #define NDIS_OID_GEN_SUPPORTED_GUIDS (0x00010117)
• #define NDIS_OID_GEN_NETWORK_LAYER_ADDRESSES (0x00010118) /∗Set only ∗/
Freescale Semiconductor
USB Stack Device Reference Manual
59
USB CDC Class driver
• #define NDIS_OID_GEN_TRANSPORT_HEADER_OFFSET (0x00010119) /∗Set only ∗/
• #define NDIS_OID_GEN_MACHINE_NAME (0x0001021A)
• #define NDIS_OID_GEN_RNDIS_CONFIG_PARAMETER (0x0001021B) /∗Set only ∗/
• #define NDIS_OID_GEN_VLAN_ID (0x0001021C)
• #define NDIS_OID_GEN_MEDIA_CAPABILITIES (0x00010201)
• #define NDIS_OID_GEN_PHYSICAL_MEDIUM (0x00010202)
NDIS Hardware status codes for OID_GEN_HARDWARE_STATUS
See MSDN for details.
• #define NDIS_HARDWARE_STATUS_READY (0x00000000)
Available and capable of sending and receiving data over the wire.
• #define NDIS_HARDWARE_STATUS_INITIALIZING (0x00000001)
Initializing.
• #define NDIS_HARDWARE_STATUS_RESET (0x00000002)
Resetting.
• #define NDIS_HARDWARE_STATUS_CLOSING (0x00000003)
Closing.
• #define NDIS_HARDWARE_STATUS_NOT_READY (0x00000004)
Not ready.
NDIS media types that the NIC can support
See MSDN for details.
• #define NDIS_MEDIUM802_3 (0x00000000)
Ethernet (802.3) is not supported for NDIS 6.0 drivers.
• #define NDIS_MEDIUM802_5 (0x00000001)
Token Ring (802.5) is not supported for NDIS 6.0 drivers.
• #define NDIS_MEDIUM_FDDI (0x00000002)
FDDI is not supported on Windows®Vista.
• #define NDIS_MEDIUM_WAN (0x00000003)
WAN.
• #define NDIS_MEDIUM_LOCAL_TALK (0x00000004)
LocalTalk.
• #define NDIS_MEDIUM_DIX (0x00000005)
DEC/Intel/Xerox (DIX) Ethernet.
• #define NDIS_MEDIUM_ARCNET_RAW (0x00000006)
ARCNET (raw) is not supported on Windows Vista.
• #define NDIS_MEDIUM_ARCNET878_2 (0x00000007)
ARCNET (878.2) is not supported on Windows Vista.
• #define NDIS_MEDIUM_ATM (0x00000008)
ATM is not supported for NDIS 6.0 drivers.
• #define NDIS_MEDIUM_NATIVE802_11 (0x00000009)
Native 802.11.
• #define NDIS_MEDIUM_WIRELESS_WAN (0x0000000A)
Various types of NdisWirelessXxx media Note This media type is not available for use beginning with
Windows Vista.
• #define NDIS_MEDIUM_IRDA (0x0000000B)
60
USB Stack Device Reference Manual
Freescale Semiconductor
USB CDC Class driver
Infrared (IrDA)
• #define NDIS_MEDIUM_COWAN (0x0000000C)
Connection-oriented WAN.
• #define NDIS_MEDIUM1394 (0x0000000D)
IEEE 1394 (firewire) bus.
• #define NDIS_MEDIUM_BPC (0x0000000E)
Broadcast PC network.
• #define NDIS_MEDIUM_INFINI_BAND (0x0000000F)
InfiniBand network.
• #define NDIS_MEDIUM_TUNNEL (0x00000010)
Tunnel network.
• #define NDIS_MEDIUM_LOOPBACK (0x00000011)
NDIS loopback network.
NDIS Packet Filter Bits for OID_GEN_CURRENT_PACKET_FILTER.
See MSDN for details.
• #define NDIS_PACKET_TYPE_DIRECTED (0x0001)
Directed packets.
• #define NDIS_PACKET_TYPE_MULTICAST (0x0002)
Multicast address packets sent to addresses in the multicast address list.
• #define NDIS_PACKET_TYPE_ALL_MULTICAST (0x0004)
All multicast address packets, not just the ones enumerated in the multicast address list.
• #define NDIS_PACKET_TYPE_BROADCAST (0x0008)
Broadcast packets.
• #define NDIS_PACKET_TYPE_SOURCE_ROUTING (0x0010)
All source routing packets.
• #define NDIS_PACKET_TYPE_PROMISCUOUS (0x0020)
Specifies all packets.
• #define NDIS_PACKET_TYPE_SMT (0x0040)
SMT packets that an FDDI NIC receives.
• #define NDIS_PACKET_TYPE_ALL_LOCAL (0x0080)
All packets sent by installed protocols and all packets indicated by the NIC that is identified by a given
NdisBindingHandle.
• #define NDIS_PACKET_TYPE_MAC_FRAME (0x8000)
NIC driver frames that a Token Ring NIC receives.
• #define NDIS_PACKET_TYPE_FUNCTIONAL (0x4000)
Functional address packets sent to addresses included in the current functional address.
• #define NDIS_PACKET_TYPE_ALL_FUNCTIONAL (0x2000)
All functional address packets, not just the ones in the current functional address.
• #define NDIS_PACKET_TYPE_GROUP (0x1000)
Packets sent to the current group address.
RNDIS status values
See MSDN for details.
• #define RNDIS_STATUS_SUCCESS (0x00000000)
Freescale Semiconductor
USB Stack Device Reference Manual
61
USB CDC Class driver
The requested operation completed successfully.
• #define RNDIS_STATUS_NOT_RECOGNIZED (0x00010001)
The underlying driver does not support the requested operation.
• #define RNDIS_STATUS_NOT_SUPPORTED (0xC00000BB)
Unsupported request error (equivalent to STATUS_NOT_SUPPORTED).
• #define RNDIS_STATUS_NOT_ACCEPTED (0x00010003)
The underlying driver attempted the requested operation, usually a set, on its NIC but it was aborted by
the Netcard.
• #define RNDIS_STATUS_FAILURE (0xC0000001)
This value usually is a non specific default, returned when none of the more specific NDIS_STATUS_XXX
causes the underlying driver to fail the request.
• #define RNDIS_STATUS_RESOURCES (0xC000009A)
The request can’t be satisfied due to a resource shortage.
• #define RNDIS_STATUS_CLOSING (0xC0010002)
The underlying driver failed the requested operation because a close is in progress.
• #define RNDIS_STATUS_CLOSING_INDICATING (0xC001000E)
The underlying driver failed the requested operation because indicating a close is in progress.
• #define RNDIS_STATUS_RESET_IN_PROGRESS (0xC001000D)
The underlying NIC driver cannot satisfy the request at this time because it is currently resetting the
Netcard.
• #define RNDIS_STATUS_INVALID_LENGTH (0xC0010014)
The value specified in the InformationBufferLength member of the NDIS_REQUEST-structured buffer at
NdisRequest does not match the requirements for the given OID_XXX code.
• #define RNDIS_STATUS_BUFFER_TOO_SHORT (0xC0010016)
The information buffer is too small.
• #define RNDIS_STATUS_INVALID_DATA (0xC0010015)
The data supplied at InformationBuffer in the given NDIS_REQUEST structure is invalid for the given
OID_XXX code.
• #define RNDIS_STATUS_INVALID_OID (0xC0010017)
The OID_XXX code specified in the OID member of the NDIS_REQUEST-structured buffer at NdisRequest
is invalid or unsupported by the underlying driver.
• #define RNDIS_STATUS_MEDIA_CONNECT (0x4001000B)
Device is connected to network medium.
• #define RNDIS_STATUS_MEDIA_DISCONNECT (0x4001000C)
Device is disconnected from network medium.
RNDIS Response sizes
Definitions of the size of response of various message types.
• #define RNDIS_RESPONSE_INITIALIZE_MSG_SIZE (52)
Response size of INITIALIZE_MSG.
• #define RNDIS_RESPONSE_QUERY_MSG_SIZE (24)
Response size of QUERY_MSG.
• #define RNDIS_RESPONSE_SET_MSG_SIZE (16)
Response size of SET_MSG.
• #define RNDIS_RESPONSE_RESET_MSG_SIZE (16)
Response size of RESET_MSG.
• #define RNDIS_RESPONSE_KEEPALIVE_MSG_SIZE (16)
Response size of KEEPALIVE_MSG.
62
USB Stack Device Reference Manual
Freescale Semiconductor
USB CDC Class driver
RNDIS device connection status
Definitions of the status value of NIC connection.
• #define NDIS_MEDIA_STATE_CONNECTED (0x00000000)
The network connection has been lost.
• #define NDIS_MEDIA_STATE_DISCONNECTED (0x00000001)
The network connection has been restored.
• #define NDIS_MEDIA_STATE_UNKNOWN (0xFFFFFFFF)
The initial value of the connection status.
Reserved for connection oriented devices. Set value to zero.
• #define RNDIS_AF_LIST_OFFSET (0x00000000)
• #define RNDIS_AF_LIST_SIZE (0x00000000)
USB CDC ACM Class Driver
•usb_status_t USB_DeviceCdcRndisInit (class_handle_t classHandle, usb_device_cdc_rndis_-
config_struct_t ∗config, usb_device_cdc_rndis_struct_t ∗∗handle)
Initializes the USB CDC RNDIS device.
•usb_status_t USB_DeviceCdcRndisDeinit (usb_device_cdc_rndis_struct_t ∗handle)
Deinitializes the USB CDC RNDIS device.
•usb_status_t USB_DeviceCdcRndisMessageSet (usb_device_cdc_rndis_struct_t ∗handle, uint8_-
t∗∗message, uint32_t ∗len)
Responds to kUSB_DeviceCdcEventSendEncapsulatedCommand.
•usb_status_t USB_DeviceCdcRndisMessageGet (usb_device_cdc_rndis_struct_t ∗handle, uint8_-
t∗∗message, uint32_t ∗len)
Responds to kUSB_DeviceCdcEventGetEncapsulatedResponse.
•usb_status_t USB_DeviceCdcRndisResetCommand (usb_device_cdc_rndis_struct_t ∗handle,
uint8_t ∗∗message, uint32_t ∗len)
Soft reset the RNDIS device.
•usb_status_t USB_DeviceCdcRndisHaltCommand (usb_device_cdc_rndis_struct_t ∗handle)
Halts the RNDIS device.
Freescale Semiconductor
USB Stack Device Reference Manual
63
USB CDC Class driver
3.6.3.5 Data Structure Documentation
3.6.3.5.1 struct rndis_init_msg_struct_t
3.6.3.5.2 struct rndis_init_cmplt_struct_t
3.6.3.5.3 struct rndis_halt_msg_struct_t
3.6.3.5.4 struct rndis_query_msg_struct_t
3.6.3.5.5 struct rndis_query_cmplt_struct_t
3.6.3.5.6 struct rndis_set_msg_struct_t
3.6.3.5.7 struct rndis_set_cmplt_struct_t
3.6.3.5.8 struct rndis_reset_msg_struct_t
3.6.3.5.9 struct rndis_reset_cmplt_struct_t
3.6.3.5.10 struct rndis_indicate_status_msg_struct_t
3.6.3.5.11 struct rndis_keepalive_msg_struct_t
3.6.3.5.12 struct rndis_keepalive_cmplt_struct_t
3.6.3.5.13 struct rndis_packet_msg_struct_t
3.6.3.5.14 struct usb_device_cdc_rndis_struct_t
Data Fields
•class_handle_t cdcAcmHandle
USB CDC ACM class handle.
• uint8_t ∗rndisCommand
The pointer to the buffer of the RNDIS request.
• uint8_t ∗responseData
The pointer to the buffer of the RNDIS response.
• uint32_t rndisHostMaxTxSize
The maximum transmit size in byte of the host.
• uint32_t rndisDevMaxTxSize
The maximum transmit size in byte of the device.
• uint32_t rndisHwState
The hardware state of the RNDIS device.
• uint32_t rndisPacketFilter
The packet filter of the RNDIS device.
• uint32_t rndisMediaConnectStatus
The media connection status of the RNDIS device.
64
USB Stack Device Reference Manual
Freescale Semiconductor
USB CDC Class driver
• uint32_t numFramesTxOk
The number of the frames sent successfully.
• uint32_t numFramesRxOk
The number of the frames received successfully.
• uint32_t numFramesTxError
The number of the frames sent failed.
• uint32_t numFramesRxError
The number of the frames received failed.
• uint32_t numRecvFramesMissed
The number of the frames missed to receive.
• uint32_t numRecvFramesAlignmentError
The number of the frames received that has alignment error.
• uint32_t numFramesTxOneCollision
The number of the frames sent that has one collision.
• uint32_t numFramesTxManyCollision
The number of the frames sent that has many collision.
• uint8_t rndisDeviceState
The RNDIS device state.
•usb_osa_mutex_handle statusMutex
The mutex to guarantee the consistent access to the device state.
•usb_status_t(∗rndisCallback )(class_handle_t handle, uint32_t event, void ∗param)
The callback function provided by application for the RNDIS request.
Freescale Semiconductor
USB Stack Device Reference Manual
65
USB CDC Class driver
3.6.3.5.14.1 Field Documentation
3.6.3.5.14.1.1 class_handle_t usb_device_cdc_rndis_struct_t::cdcAcmHandle
3.6.3.5.14.1.2 uint8_t∗usb_device_cdc_rndis_struct_t::rndisCommand
3.6.3.5.14.1.3 uint8_t∗usb_device_cdc_rndis_struct_t::responseData
3.6.3.5.14.1.4 uint32_t usb_device_cdc_rndis_struct_t::rndisHostMaxTxSize
3.6.3.5.14.1.5 uint32_t usb_device_cdc_rndis_struct_t::rndisDevMaxTxSize
3.6.3.5.14.1.6 uint32_t usb_device_cdc_rndis_struct_t::rndisHwState
3.6.3.5.14.1.7 uint32_t usb_device_cdc_rndis_struct_t::rndisPacketFilter
3.6.3.5.14.1.8 uint32_t usb_device_cdc_rndis_struct_t::rndisMediaConnectStatus
3.6.3.5.14.1.9 uint32_t usb_device_cdc_rndis_struct_t::numFramesTxOk
3.6.3.5.14.1.10 uint32_t usb_device_cdc_rndis_struct_t::numFramesRxOk
3.6.3.5.14.1.11 uint32_t usb_device_cdc_rndis_struct_t::numFramesTxError
3.6.3.5.14.1.12 uint32_t usb_device_cdc_rndis_struct_t::numFramesRxError
3.6.3.5.14.1.13 uint32_t usb_device_cdc_rndis_struct_t::numRecvFramesMissed
3.6.3.5.14.1.14 uint32_t usb_device_cdc_rndis_struct_t::numRecvFramesAlignmentError
3.6.3.5.14.1.15 uint32_t usb_device_cdc_rndis_struct_t::numFramesTxOneCollision
3.6.3.5.14.1.16 uint32_t usb_device_cdc_rndis_struct_t::numFramesTxManyCollision
3.6.3.5.14.1.17 uint8_t usb_device_cdc_rndis_struct_t::rndisDeviceState
3.6.3.5.14.1.18 usb_osa_mutex_handle usb_device_cdc_rndis_struct_t::statusMutex
3.6.3.5.14.1.19 usb_status_t(∗usb_device_cdc_rndis_struct_t::rndisCallback)(class_handle_t
handle, uint32_t event, void ∗param)
3.6.3.5.15 struct usb_device_cdc_rndis_config_struct_t
Data Fields
• uint32_t devMaxTxSize
The maximum transmit size in byte of the device.
•usb_status_t(∗rndisCallback )(class_handle_t handle, uint32_t event, void ∗param)
The callback function provided by application for the RNDIS request.
66
USB Stack Device Reference Manual
Freescale Semiconductor
USB CDC Class driver
3.6.3.5.15.1 Field Documentation
3.6.3.5.15.1.1 uint32_t usb_device_cdc_rndis_config_struct_t::devMaxTxSize
This value is configured by application.
3.6.3.5.15.1.2 usb_status_t(∗usb_device_cdc_rndis_config_struct_t::rndisCallback)(class_-
handle_t handle, uint32_t event, void ∗param)
3.6.3.5.16 struct usb_device_cdc_rndis_request_param_struct_t
Data Fields
• uint8_t ∗buffer
The pointer to the buffer for RNDIS request.
• uint32_t length
The length of the buffer for RNDIS request.
3.6.3.5.16.1 Field Documentation
3.6.3.5.16.1.1 uint8_t∗usb_device_cdc_rndis_request_param_struct_t::buffer
3.6.3.5.16.1.2 uint32_t usb_device_cdc_rndis_request_param_struct_t::length
3.6.3.6 Macro Definition Documentation
3.6.3.6.1 #define NDIS_MEDIUM802_3 (0x00000000)
Note NDIS 5.x Miniport drivers that conform to the IEEE 802.11 interface must use this media type. For
more information about the 802.11 interface, see 802.11 Wireless LAN Miniport Drivers.
3.6.3.6.2 #define NDIS_MEDIUM802_5 (0x00000001)
3.6.3.6.3 #define NDIS_MEDIUM_FDDI (0x00000002)
3.6.3.6.4 #define NDIS_MEDIUM_ARCNET_RAW (0x00000006)
3.6.3.6.5 #define NDIS_MEDIUM_ARCNET878_2 (0x00000007)
3.6.3.6.6 #define NDIS_MEDIUM_ATM (0x00000008)
3.6.3.6.7 #define NDIS_MEDIUM_NATIVE802_11 (0x00000009)
This media type is used by Miniport drivers that conform to the Native 802.11 interface. For more in-
formation about this interface, see Native 802.11 Wireless LAN Miniport Drivers. Note: Native 802.11
interface is supported in NDIS 6.0 and later versions
Freescale Semiconductor
USB Stack Device Reference Manual
67
USB CDC Class driver
3.6.3.6.8 #define NDIS_MEDIUM_BPC (0x0000000E)
3.6.3.6.9 #define NDIS_MEDIUM_INFINI_BAND (0x0000000F)
3.6.3.6.10 #define NDIS_MEDIUM_TUNNEL (0x00000010)
3.6.3.6.11 #define NDIS_MEDIUM_LOOPBACK (0x00000011)
3.6.3.6.12 #define NDIS_PACKET_TYPE_DIRECTED (0x0001)
Directed packets contain a destination address equal to the station address of the NIC.
3.6.3.6.13 #define NDIS_PACKET_TYPE_MULTICAST (0x0002)
A protocol driver can receive Ethernet (802.3) multicast packets or Token Ring (802.5) functional address
packets by specifying the multicast or functional address packet type. Setting the multicast address list or
functional address determines which multicast address groups the NIC driver enables.
3.6.3.6.14 #define NDIS_PACKET_TYPE_BROADCAST (0x0008)
3.6.3.6.15 #define NDIS_PACKET_TYPE_SOURCE_ROUTING (0x0010)
If the protocol driver sets this bit, the NDIS library attempts to act as a source routing bridge.
3.6.3.6.16 #define NDIS_PACKET_TYPE_PROMISCUOUS (0x0020)
3.6.3.6.17 #define NDIS_PACKET_TYPE_SMT (0x0040)
3.6.3.6.18 #define NDIS_PACKET_TYPE_MAC_FRAME (0x8000)
3.6.3.6.19 #define NDIS_PACKET_TYPE_GROUP (0x1000)
3.6.3.6.20 #define RNDIS_STATUS_SUCCESS (0x00000000)
3.6.3.6.21 #define RNDIS_STATUS_NOT_RECOGNIZED (0x00010001)
3.6.3.6.22 #define RNDIS_STATUS_NOT_SUPPORTED (0xC00000BB)
3.6.3.6.23 #define RNDIS_STATUS_NOT_ACCEPTED (0x00010003)
For example, an attempt to set too many multicast addresses might cause the return of this value.
68
USB Stack Device Reference Manual
Freescale Semiconductor
USB CDC Class driver
3.6.3.6.24 #define RNDIS_STATUS_RESOURCES (0xC000009A)
Usually, this return indicates that an attempt to allocate memory was unsuccessful, but it does not neces-
sarily indicate that the same request, submitted later, it is aborted for the same reason.
3.6.3.6.25 #define RNDIS_STATUS_CLOSING (0xC0010002)
3.6.3.6.26 #define RNDIS_STATUS_CLOSING_INDICATING (0xC001000E)
3.6.3.6.27 #define RNDIS_STATUS_INVALID_LENGTH (0xC0010014)
If the information buffer is too small, the BytesNeeded member contains the correct value for Information-
BufferLength on return from NdisRequest.
3.6.3.6.28 #define RNDIS_STATUS_BUFFER_TOO_SHORT (0xC0010016)
3.6.3.6.29 #define RNDIS_STATUS_MEDIA_CONNECT (0x4001000B)
3.6.3.6.30 #define RNDIS_STATUS_MEDIA_DISCONNECT (0x4001000C)
3.6.3.6.31 #define RNDIS_RESPONSE_INITIALIZE_MSG_SIZE (52)
3.6.3.6.32 #define RNDIS_RESPONSE_QUERY_MSG_SIZE (24)
3.6.3.6.33 #define RNDIS_RESPONSE_SET_MSG_SIZE (16)
3.6.3.6.34 #define RNDIS_RESPONSE_RESET_MSG_SIZE (16)
3.6.3.6.35 #define RNDIS_RESPONSE_KEEPALIVE_MSG_SIZE (16)
3.6.3.6.36 #define RNDIS_DF_CONNECTIONLESS (0x00000001)
3.6.3.6.37 #define RNDIS_DF_CONNECTION_ORIENTED (0x00000002)
3.6.3.6.38 #define RNDIS_SINGLE_PACKET_TRANSFER (0x00000001)
3.6.3.6.39 #define RNDIS_PACKET_ALIGNMENT_FACTOR (0x00000003)
3.6.3.6.40 #define RNDIS_NUM_OIDS_SUPPORTED (25)
3.6.3.6.41 #define RNDIS_VENDOR_ID (0xFFFFFF)
Vendors without an IEEE-registered code should use the value 0xFFFFFF.
Freescale Semiconductor
USB Stack Device Reference Manual
69
USB CDC Class driver
3.6.3.6.42 #define NDIS_MEDIA_STATE_CONNECTED (0x00000000)
3.6.3.6.43 #define NDIS_MEDIA_STATE_DISCONNECTED (0x00000001)
3.6.3.6.44 #define NDIS_MEDIA_STATE_UNKNOWN (0xFFFFFFFF)
3.6.3.6.45 #define RNDIS_MAX_EXPECTED_COMMAND_SIZE (76)
3.6.3.6.46 #define RNDIS_ETHER_ADDR_SIZE (6)
3.6.3.6.47 #define RNDIS_USB_HEADER_SIZE (44)
3.6.3.6.48 #define RNDIS_MULTICAST_LIST_SIZE (0)
3.6.3.7 Enumeration Type Documentation
3.6.3.7.1 enum ndis_physical_medium_enum_t
Used with OID_GEN_PHYSICAL_MEDIUM.
3.6.3.7.2 enum rndis_state_enum_t
See MSDN for details.
Enumerator
RNDIS_UNINITIALIZED Following bus-level initialization, the device is said to be in the RN-
DIS-uninitialized state. If the device receives a REMOTE_NDIS_HALT_MSG, a bus-level
disconnects, or a hard-reset at any time, it forces the device to the RNDIS-uninitialized state.
RNDIS_INITIALIZED After the device receives a REMOTE_NDIS_INITIALIZE_MSG and re-
sponds with a REMOTE_NDIS_INITIALIZE_CMPLT with a status of RNDIS_STATUS_S-
UCCESS, the device enters the RNDIS-initialized state. If the device is in the RNDIS-data-
initialized state when it receives a REMOTE_NDIS_SET_MSG specifying a zero filter value
for OID_GEN_CURRENT_PACKET_FILTER, this event forces the device back to the RNDI-
S-initialized state.
RNDIS_DATA_INITIALIZED If the device receives a REMOTE_NDIS_SET_MSG that specifies
a non-zero filter value for OID_GEN_CURRENT_PACKET_FILTER, the device enters the R-
NDIS-data-initialized state.
3.6.3.7.3 enum rndis_event_enum_t
Enumerator
kUSB_DeviceCdcEventAppGetLinkSpeed This event indicates to get the link speed of the Ethernet.
70
USB Stack Device Reference Manual
Freescale Semiconductor
USB CDC Class driver
kUSB_DeviceCdcEventAppGetSendPacketSize This event indicates to get the USB send packet
size.
kUSB_DeviceCdcEventAppGetRecvPacketSize This event indicates to get the USB receive packet
size.
kUSB_DeviceCdcEventAppGetMacAddress This event indicates to get the mac address of the de-
vice.
kUSB_DeviceCdcEventAppGetLinkStatus This event indicates to get the link status of the Ethernet.
kUSB_DeviceCdcEventAppGetMaxFrameSize This event indicates to get the Ethernet maximum
frame size.
3.6.3.8 Function Documentation
3.6.3.8.1 usb_status_t USB_DeviceCdcRndisInit ( class_handle_t classHandle,
usb_device_cdc_rndis_config_struct_t ∗config, usb_device_cdc_rndis_struct_t ∗∗
handle )
This function sets the initial value for RNDIS device state, hardware state and media connection status,
configures the maximum transmit size and the RNDIS request callback according to the user configuration
structure. It also creates the mutex for accessing the device state.
Parameters
classHandle The class handle of the CDC ACM class.
config The configure structure of the RNDIS device.
handle This is a out parameter. It points to the address of the USB CDC RNDIS device
handle.
Returns
A USB error code or kStatus_USB_Success.
Return values
kStatus_USB_Success Initialize the RNDIS device successfully.
kStatus_USB_Error Fails to allocate for the RNDIS device handle.
3.6.3.8.2 usb_status_t USB_DeviceCdcRndisDeinit ( usb_device_cdc_rndis_struct_t ∗handle )
This function destroys the mutex of the device state and frees the RNDIS device handle.
Freescale Semiconductor
USB Stack Device Reference Manual
71
USB CDC Class driver
Parameters
handle This is a pointer to the USB CDC RNDIS device handle.
Returns
A USB error code or kStatus_USB_Success.
Return values
kStatus_USB_Success De-Initialize the RNDIS device successfully.
kStatus_USB_Error Fails to free the RNDIS device handle.
kStatus_USB_Invalid-
Handle
The RNDIS device handle is invalid.
3.6.3.8.3 usb_status_t USB_DeviceCdcRndisMessageSet ( usb_device_cdc_rndis_struct_t ∗
handle, uint8_t ∗∗ message, uint32_t ∗len )
This function checks the message length to see if it exceeds the maximum of the RNDIS request size and
sets the device state or prepares notification for various message type accordingly.
Parameters
handle This is a pointer to the USB CDC RNDIS device handle.
message This is a pointer to the address of the RNDIS request buffer.
len This is a pointer to the variable of data size for the RNDIS request.
Returns
A USB error code or kStatus_USB_Success.
Return values
kStatus_USB_Success Responds to the host successfully.
kStatus_USB_Error The message length exceeds the maximum of the RNDIS request.
kStatus_USB_Invalid-
Handle
The RNDIS device handle is invalid.
72
USB Stack Device Reference Manual
Freescale Semiconductor
USB CDC Class driver
3.6.3.8.4 usb_status_t USB_DeviceCdcRndisMessageGet ( usb_device_cdc_rndis_struct_t ∗
handle, uint8_t ∗∗ message, uint32_t ∗len )
This function prepares the response for various message type which is stored in SendEncapsulated-
Command.
Freescale Semiconductor
USB Stack Device Reference Manual
73
USB CDC Class driver
Parameters
handle This is a pointer to the USB CDC RNDIS device handle.
message This is an out parameter. It is a pointer to the address of the RNDIS response buffer.
len This is an out parameter. It is a pointer to the variable of data size for the RNDIS
response.
Returns
A USB error code or kStatus_USB_Success.
Return values
kStatus_USB_Success Prepares for the response to the host successfully.
kStatus_USB_Invalid-
Request
The message type is not supported.
kStatus_USB_Invalid-
Handle
The RNDIS device handle is invalid.
3.6.3.8.5 usb_status_t USB_DeviceCdcRndisResetCommand ( usb_device_cdc_rndis_struct_t ∗
handle, uint8_t ∗∗ message, uint32_t ∗len )
This function is called to soft reset the RNDIS device.
Parameters
handle This is a pointer to the USB CDC RNDIS device handle.
message This is an out parameter. It is a pointer to the address of the RNDIS response buffer.
len This is an out parameter. It is a pointer to the variable of data size for the RNDIS
response.
Returns
A USB error code or kStatus_USB_Success.
Return values
74
USB Stack Device Reference Manual
Freescale Semiconductor
USB CDC Class driver
kStatus_USB_Success Prepares for the response to the host successfully.
kStatus_USB_Invalid-
Handle
The RNDIS device handle is invalid.
3.6.3.8.6 usb_status_t USB_DeviceCdcRndisHaltCommand ( usb_device_cdc_rndis_struct_t ∗
handle )
This function is called to halt the RNDIS device.
Parameters
handle This is a pointer to the USB CDC RNDIS device handle.
Returns
A USB error code or kStatus_USB_Success.
Return values
kStatus_USB_Success Halt the RNDIS device successfully.
kStatus_USB_Invalid-
Handle
The RNDIS device handle is invalid.
Freescale Semiconductor
USB Stack Device Reference Manual
75
USB AUDIO Class driver
3.7 USB AUDIO Class driver
3.7.1 Overview
Data Structures
• struct usb_device_audio_entity_struct_t
The audio device class-specific information. More...
• struct usb_device_audio_entities_struct_t
The audio device class-specific information list. More...
• struct usb_device_audio_struct_t
The audio device class status structure. More...
Enumerations
• enum usb_device_audio_event_t {
kUSB_DeviceAudioEventStreamSendResponse = 0x01U,
kUSB_DeviceAudioEventStreamRecvResponse,
kUSB_DeviceAudioEventControlSendResponse }
Available common EVENT types in audio class callback.
USB Audio class codes
Enables/disables the Audio Class 2.0
• #define USB_DEVICE_CONFIG_AUDIO_CLASS_CODE (0x01)
Audio device class code.
• #define USB_DEVICE_AUDIO_STREAM_SUBCLASS (0x02)
Audio device subclass code.
• #define USB_DEVICE_AUDIO_CONTROL_SUBCLASS (0x01)
• #define USB_DESCRIPTOR_TYPE_AUDIO_CS_INTERFACE (0x24)
Audio device class-specific descriptor type.
• #define USB_DESCRIPTOR_SUBTYPE_AUDIO_CONTROL_HEADER (0x01)
Audio device class-specific control interface descriptor subtype.
• #define USB_DESCRIPTOR_SUBTYPE_AUDIO_CONTROL_INPUT_TERMINAL (0x02)
• #define USB_DESCRIPTOR_SUBTYPE_AUDIO_CONTROL_OUTPUT_TERMINA-
L(0x03)
• #define USB_DESCRIPTOR_SUBTYPE_AUDIO_CONTROL_FEATURE_UNIT (0x06)
• #define USB_DESCRIPTOR_SUBTYPE_AUDIO_STREAMING_GENERAL (0x01)
Audio device class-specific steam interface descriptor subtype.
• #define USB_DESCRIPTOR_SUBTYPE_AUDIO_STREAMING_FORMAT_TYPE (0x02)
• #define USB_DEVICE_AUDIO_GET_CUR_MUTE_CONTROL (0x8101)
Audio device class-specific GET CUR COMMAND.
• #define USB_DEVICE_AUDIO_GET_CUR_VOLUME_CONTROL (0x8102)
• #define USB_DEVICE_AUDIO_GET_CUR_BASS_CONTROL (0x8103)
• #define USB_DEVICE_AUDIO_GET_CUR_MID_CONTROL (0x8104)
• #define USB_DEVICE_AUDIO_GET_CUR_TREBLE_CONTROL (0x8105)
• #define USB_DEVICE_AUDIO_GET_CUR_GRAPHIC_EQUALIZER_CONTROL (0x8106)
76
USB Stack Device Reference Manual
Freescale Semiconductor
USB AUDIO Class driver
• #define USB_DEVICE_AUDIO_GET_CUR_AUTOMATIC_GAIN_CONTROL (0x8107)
• #define USB_DEVICE_AUDIO_GET_CUR_DELAY_CONTROL (0x8108)
• #define USB_DEVICE_AUDIO_GET_CUR_BASS_BOOST_CONTROL (0x8109)
• #define USB_DEVICE_AUDIO_GET_CUR_LOUDNESS_CONTROL (0x810A)
• #define USB_DEVICE_AUDIO_GET_MIN_VOLUME_CONTROL (0x8202)
Audio device class-specific GET MIN COMMAND.
• #define USB_DEVICE_AUDIO_GET_MIN_BASS_CONTROL (0x8203)
• #define USB_DEVICE_AUDIO_GET_MIN_MID_CONTROL (0x8204)
• #define USB_DEVICE_AUDIO_GET_MIN_TREBLE_CONTROL (0x8205)
• #define USB_DEVICE_AUDIO_GET_MIN_GRAPHIC_EQUALIZER_CONTROL (0x8206)
• #define USB_DEVICE_AUDIO_GET_MIN_DELAY_CONTROL (0x8208)
• #define USB_DEVICE_AUDIO_GET_MAX_VOLUME_CONTROL (0x8302)
Audio device class-specific GET MAX COMMAND.
• #define USB_DEVICE_AUDIO_GET_MAX_BASS_CONTROL (0x8303)
• #define USB_DEVICE_AUDIO_GET_MAX_MID_CONTROL (0x8304)
• #define USB_DEVICE_AUDIO_GET_MAX_TREBLE_CONTROL (0x8305)
• #define USB_DEVICE_AUDIO_GET_MAX_GRAPHIC_EQUALIZER_CONTROL (0x8306)
• #define USB_DEVICE_AUDIO_GET_MAX_DELAY_CONTROL (0x8308)
• #define USB_DEVICE_AUDIO_GET_RES_VOLUME_CONTROL (0x8402)
Audio device class-specific GET RES COMMAND.
• #define USB_DEVICE_AUDIO_GET_RES_BASS_CONTROL (0x8403)
• #define USB_DEVICE_AUDIO_GET_RES_MID_CONTROL (0x8404)
• #define USB_DEVICE_AUDIO_GET_RES_TREBLE_CONTROL (0x8405)
• #define USB_DEVICE_AUDIO_GET_RES_GRAPHIC_EQUALIZER_CONTROL (0x8406)
• #define USB_DEVICE_AUDIO_GET_RES_DELAY_CONTROL (0x8408)
• #define USB_DEVICE_AUDIO_SET_CUR_MUTE_CONTROL (0x0101)
Audio device class-specific SET CUR COMMAND.
• #define USB_DEVICE_AUDIO_SET_CUR_VOLUME_CONTROL (0x0102)
• #define USB_DEVICE_AUDIO_SET_CUR_BASS_CONTROL (0x0103)
• #define USB_DEVICE_AUDIO_SET_CUR_MID_CONTROL (0x0104)
• #define USB_DEVICE_AUDIO_SET_CUR_TREBLE_CONTROL (0x0105)
• #define USB_DEVICE_AUDIO_SET_CUR_GRAPHIC_EQUALIZER_CONTROL (0x0106)
• #define USB_DEVICE_AUDIO_SET_CUR_AUTOMATIC_GAIN_CONTROL (0x0107)
• #define USB_DEVICE_AUDIO_SET_CUR_DELAY_CONTROL (0x0108)
• #define USB_DEVICE_AUDIO_SET_CUR_BASS_BOOST_CONTROL (0x0109)
• #define USB_DEVICE_AUDIO_SET_CUR_LOUDNESS_CONTROL (0x010A)
• #define USB_DEVICE_AUDIO_SET_CUR_PITCH_CONTROL (0x010D)
• #define USB_DEVICE_AUDIO_SET_MIN_VOLUME_CONTROL (0x0202)
Audio device class-specific SET MIN COMMAND.
• #define USB_DEVICE_AUDIO_SET_MIN_BASS_CONTROL (0x0203)
• #define USB_DEVICE_AUDIO_SET_MIN_MID_CONTROL (0x0204)
• #define USB_DEVICE_AUDIO_SET_MIN_TREBLE_CONTROL (0x0205)
• #define USB_DEVICE_AUDIO_SET_MIN_GRAPHIC_EQUALIZER_CONTROL (0x0206)
• #define USB_DEVICE_AUDIO_SET_MIN_DELAY_CONTROL (0x0208)
• #define USB_DEVICE_AUDIO_SET_MAX_VOLUME_CONTROL (0x0302)
Audio device class-specific SET MAX COMMAND.
• #define USB_DEVICE_AUDIO_SET_MAX_BASS_CONTROL (0x0303)
• #define USB_DEVICE_AUDIO_SET_MAX_MID_CONTROL (0x0304)
• #define USB_DEVICE_AUDIO_SET_MAX_TREBLE_CONTROL (0x0305)
• #define USB_DEVICE_AUDIO_SET_MAX_GRAPHIC_EQUALIZER_CONTROL (0x0306)
• #define USB_DEVICE_AUDIO_SET_MAX_DELAY_CONTROL (0x0308)
• #define USB_DEVICE_AUDIO_SET_RES_VOLUME_CONTROL (0x0402)
Audio device class-specific SET RES COMMAND.
• #define USB_DEVICE_AUDIO_SET_RES_BASS_CONTROL (0x0403)
• #define USB_DEVICE_AUDIO_SET_RES_MID_CONTROL (0x0404)
Freescale Semiconductor
USB Stack Device Reference Manual
77
USB AUDIO Class driver
• #define USB_DEVICE_AUDIO_SET_RES_TREBLE_CONTROL (0x0405)
• #define USB_DEVICE_AUDIO_SET_RES_GRAPHIC_EQUALIZER_CONTROL (0x0406)
• #define USB_DEVICE_AUDIO_SET_RES_DELAY_CONTROL (0x0408)
• #define USB_DEVICE_AUDIO_GET_CUR_SAMPLING_FREQ_CONTROL (0x810C)
Audio device class-specific GET SAMPLING FREQ CONTROL COMMAND.
• #define USB_DEVICE_AUDIO_GET_MIN_SAMPLING_FREQ_CONTROL (0x820C)
• #define USB_DEVICE_AUDIO_GET_MAX_SAMPLING_FREQ_CONTROL (0x830C)
• #define USB_DEVICE_AUDIO_GET_RES_SAMPLING_FREQ_CONTROL (0x840C)
• #define USB_DEVICE_AUDIO_SET_CUR_SAMPLING_FREQ_CONTROL (0x010C)
Audio device class-specific SET SAMPLING FREQ CONTROL COMMAND.
• #define USB_DEVICE_AUDIO_SET_MIN_SAMPLING_FREQ_CONTROL (0x020C)
• #define USB_DEVICE_AUDIO_SET_MAX_SAMPLING_FREQ_CONTROL (0x030C)
• #define USB_DEVICE_AUDIO_SET_RES_SAMPLING_FREQ_CONTROL (0x040C)
• #define USB_DEVICE_AUDIO_SET_CUR_VOLUME_REQUEST (0x01)
• #define USB_DEVICE_AUDIO_SET_MIN_VOLUME_REQUEST (0x02)
• #define USB_DEVICE_AUDIO_SET_MAX_VOLUME_REQUEST (0x03)
• #define USB_DEVICE_AUDIO_SET_RES_VOLUME_REQUEST (0x04)
• #define USB_DEVICE_AUDIO_GET_CUR_VOLUME_REQUEST (0x81)
• #define USB_DEVICE_AUDIO_GET_MIN_VOLUME_REQUEST (0x82)
• #define USB_DEVICE_AUDIO_GET_MAX_VOLUME_REQUEST (0x83)
• #define USB_DEVICE_AUDIO_GET_RES_VOLUME_REQUEST (0x84)
• #define USB_DEVICE_AUDIO_COPY_PROTECT_CONTROL_SELECTOR (0x01)
• #define USB_DEVICE_AUDIO_MUTE_CONTROL_SELECTOR (0x01)
• #define USB_DEVICE_AUDIO_VOLUME_CONTROL_SELECTOR (0x02)
• #define USB_DEVICE_AUDIO_BASS_CONTROL_SELECTOR (0x03)
• #define USB_DEVICE_AUDIO_MID_CONTROL_SELECTOR (0x04)
• #define USB_DEVICE_AUDIO_TREBLE_CONTROL_SELECTOR (0x05)
• #define USB_DEVICE_AUDIO_GRAPHIC_EQUALIZER_CONTROL_SELECTOR (0x06)
• #define USB_DEVICE_AUDIO_AUTOMATIC_GAIN_CONTROL_SELECTOR (0x07)
• #define USB_DEVICE_AUDIO_DELAY_CONTROL_SELECTOR (0x08)
• #define USB_DEVICE_AUDIO_BASS_BOOST_CONTROL_SELECTOR (0x09)
• #define USB_DEVICE_AUDIO_LOUDNESS_CONTROL_SELECTOR (0x0A)
• #define USB_DEVICE_AUDIO_SAMPLING_FREQ_CONTROL_SELECTOR (0x01)
• #define USB_DEVICE_AUDIO_PITCH_CONTROL_SELECTOR (0x02)
USB Audio class setup request types
• #define USB_DEVICE_AUDIO_SET_REQUSET_INTERFACE (0x21)
Audio device class setup request set type.
• #define USB_DEVICE_AUDIO_SET_REQUSET_ENDPOINT (0x22)
• #define USB_DEVICE_AUDIO_GET_REQUSET_INTERFACE (0xA1)
Audio device class setup request get type.
• #define USB_DEVICE_AUDIO_GET_REQUSET_ENDPOINT (0xA2)
USB Audio Class Driver
•usb_status_t USB_DeviceAudioInit (uint8_t controllerId, usb_device_class_config_struct_-
t∗config, class_handle_t ∗handle)
Initializes the USB audio class.
•usb_status_t USB_DeviceAudioDeinit (class_handle_t handle)
Deinitializes the USB audio class.
78
USB Stack Device Reference Manual
Freescale Semiconductor
USB AUDIO Class driver
•usb_status_t USB_DeviceAudioEvent (void ∗handle, uint32_t event, void ∗param)
Handles the USB audio class event.
•usb_status_t USB_DeviceAudioSend (class_handle_t handle, uint8_t ep, uint8_t ∗buffer, uint32_t
length)
Primes the endpoint to send a packet to the host.
•usb_status_t USB_DeviceAudioRecv (class_handle_t handle, uint8_t ep, uint8_t ∗buffer, uint32_t
length)
Primes the endpoint to receive a packet from the host.
3.7.2 Data Structure Documentation
3.7.2.1 struct usb_device_audio_entity_struct_t
The structure is used to pass the audio entity information filled by application. Such as entity id (unit or
terminal ID), entity type (unit or terminal type), and terminal type if the entity is a terminal.
3.7.2.2 struct usb_device_audio_entities_struct_t
The structure is used to pass the audio entity informations filled by the application. The type of each entity
is usb_device_audio_entity_struct_t. The structure pointer is kept in the usb_device_interface_struct_t-
::classSpecific, such as, if there are three entities (an out terminal, camera terminal, and processing unit),
the value of the count field is 3 and the entity field saves the every entity information.
3.7.2.3 struct usb_device_audio_struct_t
Data Fields
•usb_device_handle handle
The device handle.
•usb_device_class_config_struct_t ∗configStruct
The configuration of the class.
•usb_device_interface_struct_t ∗controlInterfaceHandle
Current control interface handle.
•usb_device_interface_struct_t ∗streamInterfaceHandle
Current stream interface handle.
• uint8_t configuration
Current configuration.
• uint8_t controlInterfaceNumber
The control interface number of the class.
• uint8_t controlAlternate
Current alternate setting of the control interface.
• uint8_t streamInterfaceNumber
The stream interface number of the class.
• uint8_t streamAlternate
Current alternate setting of the stream interface.
• uint8_t streamInPipeBusy
Freescale Semiconductor
USB Stack Device Reference Manual
79
USB AUDIO Class driver
Stream IN pipe busy flag.
• uint8_t streamOutPipeBusy
Stream OUT pipe busy flag.
3.7.2.3.0.1 Field Documentation
3.7.2.3.0.1.1 usb_device_class_config_struct_t∗usb_device_audio_struct_t::configStruct
3.7.3 Enumeration Type Documentation
3.7.3.1 enum usb_device_audio_event_t
Enumerator
kUSB_DeviceAudioEventStreamSendResponse Send data completed in stream pipe.
kUSB_DeviceAudioEventStreamRecvResponse Data received in stream pipe.
kUSB_DeviceAudioEventControlSendResponse Send data completed in audio control pipe.
3.7.4 Function Documentation
3.7.4.1 usb_status_t USB_DeviceAudioInit ( uint8_t controllerId, usb_-
device_class_config_struct_t ∗config, class_handle_t ∗handle
)
This function obtains a USB device handle according to the controller ID, initializes the audio class with
the class configuration parameters, and creates the mutex for each pipe.
Parameters
controllerId The ID of the controller. The value can be chosen from the kUSB_ControllerKhci0,
kUSB_ControllerKhci1, kUSB_ControllerEhci0, or kUSB_ControllerEhci1.
config The user configuration structure of type usb_device_class_config_struct_t. The user
populates the members of this structure and passes the pointer of this structure into
this function.
handle An out parameter. The class handle of the audio class.
Returns
A USB error code or kStatus_USB_Success.
80
USB Stack Device Reference Manual
Freescale Semiconductor
USB AUDIO Class driver
Return values
kStatus_USB_Success The audio class is initialized successfully.
kStatus_USB_Busy No audio device handle available for allocation.
kStatus_USB_Invalid-
Handle
The audio device handle allocation failure.
kStatus_USB_Invalid-
Parameter
The USB device handle allocation failure.
3.7.4.2 usb_status_t USB_DeviceAudioDeinit ( class_handle_t handle )
This function destroys the mutex for each pipe, deinitializes each endpoint of the audio class, and frees
the audio class handle.
Parameters
handle The class handle of the audio class.
Returns
A USB error code or kStatus_USB_Success.
Return values
kStatus_USB_Success The audio class is deinitialized successfully.
kStatus_USB_Error The endpoint deinitialization failure.
kStatus_USB_Invalid-
Handle
The audio device handle or the audio class handle is invalid.
kStatus_USB_Invalid-
Parameter
The endpoint number of the audio class handle is invalid.
3.7.4.3 usb_status_t USB_DeviceAudioEvent ( void ∗handle, uint32_t event, void ∗
param )
This function responds to various events including the common device events and the class-specific events.
For class-specific events, it calls the class callback defined in the application to deal with the class-specific
event.
Freescale Semiconductor
USB Stack Device Reference Manual
81
USB AUDIO Class driver
Parameters
handle The class handle of the audio class.
event The event type.
param The class handle of the audio class.
Returns
A USB error code or kStatus_USB_Success.
Return values
kStatus_USB_Success The audio class is deinitialized successfully.
kStatus_USB_Error The configure structure of the audio class handle is invalid.
kStatus_USB_Invalid-
Handle
The audio device handle or the audio class handle is invalid.
kStatus_USB_Invalid-
Parameter
The endpoint number of the audio class handle is invalid.
Others The error code returned by class callback in application.
3.7.4.4 usb_status_t USB_DeviceAudioSend ( class_handle_t handle, uint8_t ep, uint8_t
∗buffer, uint32_t length )
This function checks whether the endpoint is sending packet, then it primes the endpoint with the buffer
address and the buffer length if the pipe is not busy. Otherwise, it ignores this transfer by returning an
error code.
Parameters
handle The class handle of the audio class.
ep The endpoint number of the transfer.
buffer The pointer to the buffer to be transferred.
length The length of the buffer to be transferred.
Returns
A USB error code or kStatus_USB_Success.
82
USB Stack Device Reference Manual
Freescale Semiconductor
USB AUDIO Class driver
Return values
kStatus_USB_Success Prime to send packet successfully.
kStatus_USB_Busy The endpoint is busy in transferring.
kStatus_USB_Invalid-
Handle
The audio device handle or the audio class handle is invalid.
kStatus_USB_Controller-
NotFound
The controller interface is invalid.
3.7.4.5 usb_status_t USB_DeviceAudioRecv ( class_handle_t handle, uint8_t ep, uint8_t
∗buffer, uint32_t length )
This function checks whether the endpoint is receiving packet, then it primes the endpoint with the buffer
address and the buffer length if the pipe is not busy. Otherwise, it ignores this transfer by returning an
error code.
Parameters
handle The class handle of the audio class.
ep The endpoint number of the transfer.
buffer The pointer to the buffer to be transferred.
length The length of the buffer to be transferred.
Returns
A USB error code or kStatus_USB_Success.
Return values
kStatus_USB_Success Prime to receive packet successfully.
kStatus_USB_Busy The endpoint is busy in transferring.
kStatus_USB_Invalid-
Handle
The audio device handle or the audio class handle is invalid.
kStatus_USB_Controller-
NotFound
The controller interface is invalid.
Freescale Semiconductor
USB Stack Device Reference Manual
83
USB CCID Class driver
3.8 USB CCID Class driver
3.8.1 Overview
Data Structures
• struct usb_device_ccid_common_command_t
Common command structure of the command message in the bulk-out pipe. More...
• struct usb_device_ccid_power_on_command_t
ICC power on command structure of the command message in the bulk-out pipe. More...
• struct usb_device_ccid_power_off_command_t
ICC power off command structure of the command message in the bulk-out pipe. More...
• struct usb_device_ccid_get_slot_status_command_t
Gets the slot status command structure of the command message in the bulk-out pipe. More...
• struct usb_device_ccid_transfer_block_command_t
Transfer data block command structure of the command message in the bulk-out pipe. More...
• struct usb_device_ccid_get_parameters_command_t
Gets the ICC parameter command structure of the command message in the bulk-out pipe. More...
• struct usb_device_ccid_reset_parameters_command_t
Resets the ICC parameter command structure of the command message in the bulk-out pipe. More...
• struct usb_device_ccid_set_parameters_command_t
Sets the ICC parameter command structure of the command message in the bulk-out pipe. More...
• struct usb_device_ccid_set_parameters_t0_command_t
Sets the ICC(T=0) parameter command structure of the command message in the bulk-out pipe. More...
• struct usb_device_ccid_set_parameters_t1_command_t
Sets the ICC(T=1) parameter command structure of the command message in the bulk-out pipe. More...
• union usb_device_ccid_set_parameters_command_common_t
Sets the ICC parameter command union of the command message in the bulk-out pipe. More...
• struct usb_device_ccid_escape_command_t
Escape command structure of the command message in the bulk-out pipe. More...
• struct usb_device_ccid_clock_command_t
Controls the ICC clock command structure of the command message in the bulk-out pipe. More...
• struct usb_device_ccid_t0_apdu_command_t
Controls the ICC clock command structure of the command message in the bulk-out pipe. More...
• struct usb_device_ccid_secure_command_t
Secures the command structure of the command message in the bulk-out pipe. More...
• struct usb_device_ccid_secure_pin_operation_command_t
Secures the PIN operation command structure of the command message in the bulk-out pipe. More...
• struct usb_device_ccid_seucre_pin_verification_command_t
Secures the PIN verification operation command structure of the command message in the bulk-out pipe.
More...
• struct usb_device_ccid_secure_pin_modification_command_t
Secures the PIN modification operation command structure of the command message in the bulk-out pipe.
More...
• struct usb_device_ccid_mechanical_command_t
Manages the motorized type CCID functionality command structure of the command message in the bulk-
out pipe. More...
• struct usb_device_ccid_abort_command_t
Aborts the command structure of the command message in the bulk-out pipe. More...
• struct usb_device_ccid_set_data_rate_and_clock_frequency_command_t
Sets data rate and clock frequency command structure of the command message in the bulk-out pipe.
84
USB Stack Device Reference Manual
Freescale Semiconductor
USB CCID Class driver
More...
• struct usb_device_ccid_common_response_t
Common response structure to respond a command message in the bulk-in pipe. More...
• struct usb_device_ccid_data_block_response_t
Data block response structure to respond a command message in the bulk-in pipe. More...
• struct usb_device_ccid_slot_status_response_t
Sends a slot status response structure to respond a command message in the bulk-in pipe. More...
• struct usb_device_ccid_parameters_response_t
ICC parameter response structure to respond a command message in the bulk-in pipe. More...
• struct usb_device_ccid_parameters_T0_response_t
ICC T0 parameter response structure to respond a command message in the bulk-in pipe. More...
• struct usb_device_ccid_parameters_T1_response_t
ICC T1 parameter response structure to response a command message in the bulk-in pipe. More...
• union usb_device_ccid_parameters_response_common_t
ICC parameter response union to response a command message in the bulk-in pipe. More...
• struct usb_device_ccid_escape_response_t
Response structure to respond the "PC_to_RDR_Escape" command message in the bulk-in pipe. More...
• struct usb_device_ccid_data_rate_and_clock_frequency_response_t
Response structure to respond the "PC_to_RDR_SetDataRateAndClockFrequency" command message in
the bulk-in pipe. More...
• struct usb_device_ccid_notify_slot_chnage_notification_t
Notification structure to notify Host the CCID device slot changed. More...
• struct usb_device_ccid_hardware_error_notification_t
Notification structure to notify Host a hardware error happened in the CCID device. More...
• struct usb_device_ccid_transfer_struct_t
USB device CCID transfer structure. More...
• struct usb_device_ccid_control_request_struct_t
The structure is used to get data rates or clock frequencies if the event is kUSB_DeviceCcidEventGet-
ClockFrequencies or kUSB_DeviceCcidEventGetDataRate. More...
• struct usb_device_ccid_notification_struct_t
The structure is used to keep the transferred buffer and transferred length if the event is kUSB_Device-
CcidEventSlotChangeSent or kUSB_DeviceCcidEventHardwareErrorSent. More...
• struct usb_device_ccid_command_struct_t
The structure is used to keep the command data and length and get response data and length if the event
is kUSB_DeviceCcidEventCommandReceived. More...
• struct usb_device_ccid_slot_status_struct_t
The structure is used to get the slot status if the event is kUSB_DeviceCcidEventGetSlotStatus. More...
• struct usb_device_ccid_struct_t
The CCID device class status structure. More...
Macros
• #define USB_DEVICE_CCID_CLASS_CODE (0x0BU)
CCID device class code.
• #define USB_DEVICE_CCID_SUBCLASS_CODE (0x00U)
CCID device subclass code.
• #define USB_DEVICE_CCID_PROTOCOL_CODE (0x00U)
CCID device protocol code.
• #define USB_DEVICE_CCID_ABORT (0x01U)
CCID device class-specific control pipe requests.
Freescale Semiconductor
USB Stack Device Reference Manual
85
USB CCID Class driver
• #define USB_DEVICE_CCID_PC_TO_RDR_ICCPOWERON (0x62U)
The message type of CCID device class-specific bulk-out pipe (Command pipe)
• #define USB_DEVICE_CCID_RDR_TO_PC_DATABLOCK (0x80U)
The message type of CCID device class-specific bulk-in pipe (Response pipe)
• #define USB_DEVICE_CCID_RDR_TO_PC_NOTIFYSLOTCHANGE (0x50U)
The message type of CCID device class-specific interrupt-in pipe.
• #define USB_DEVICE_CCID_SLOT_ERROR_COMMAND_NOT_SUPPORTED (0x00U)
Reporting slot error and slot status registers in bulk-in messages.
• #define USB_DEVICE_CCID_COMMAND_HEADER_LENGTH (0x0AU)
The command header length of the bulk-out pipe message.
• #define USB_DEVICE_CCID_RESPONSE_HEADER_LENGTH (0x0AU)
The response header length of the bulk-in pipe message.
• #define USB_DEVICE_CCID_BUFFER_4BYTE_ALIGN(n) (((n - 1U) & 0xFFFFFFFCU) +
0x00000004U)
The definition to make the length aligned to 4-bytes.
Enumerations
• enum usb_device_ccid_event_t {
kUSB_DeviceCcidEventCommandReceived = 0x01U,
kUSB_DeviceCcidEventResponseSent,
kUSB_DeviceCcidEventGetSlotCount,
kUSB_DeviceCcidEventGetSlotStatus,
kUSB_DeviceCcidEventCommandAbort,
kUSB_DeviceCcidEventGetClockFrequencies,
kUSB_DeviceCcidEventGetDataRate,
kUSB_DeviceCcidEventSlotChangeSent,
kUSB_DeviceCcidEventHardwareErrorSent }
Available common EVENT types in CCID class callback.
• enum usb_device_ccid_slot_state_t {
kUSB_DeviceCcidSlotStateNoPresent = 0x00U,
kUSB_DeviceCcidSlotStatePresent = 0x01U }
Slot status, present or not.
• enum usb_device_ccid_hardware_error_t {kUSB_DeviceCcidHardwareErrorOverCurrent = 0x01-
U }
Hardware error status.
Functions
•usb_status_t USB_DeviceCcidInit (uint8_t controllerId, usb_device_class_config_struct_t ∗config,
class_handle_t ∗handle)
Initialize the CCID class.
•usb_status_t USB_DeviceCcidDeinit (class_handle_t handle)
Deinitializes the device CCID class.
•usb_status_t USB_DeviceCcidEvent (void ∗handle, uint32_t event, void ∗param)
Handles the event passed to the CCID class.
86
USB Stack Device Reference Manual
Freescale Semiconductor
USB CCID Class driver
USB CCID device class configuration
• #define USB_DEVICE_CONFIG_CCID_SLOT_MAX (1U)
MAX slot number of the CCID device.
• #define USB_DEVICE_CONFIG_CCID_TRANSFER_COUNT (4U)
MAX transfer entity number of the CCID device.
• #define USB_DEVICE_CONFIG_CCID_MAX_MESSAGE_LENGTH (271U)
MAX maximum message length of the CCID device.
USB CCID device class descriptor
• #define USB_DEVICE_CCID_DESCRIPTOR_LENGTH (0x36U)
• #define USB_DEVICE_CCID_DESCRIPTOR_TYPE (0x21U)
• #define USB_DEVICE_CCID_DESCRIPTOR_VOLTAGE_SUPPORT_BM_5V (0x01U)
• #define USB_DEVICE_CCID_DESCRIPTOR_VOLTAGE_SUPPORT_BM_3V (0x02U)
• #define USB_DEVICE_CCID_DESCRIPTOR_VOLTAGE_SUPPORT_BM_1V8 (0x04U)
• #define USB_DEVICE_CCID_DESCRIPTOR_PROTOCOLS_BM_T0 (0x00000001U)
• #define USB_DEVICE_CCID_DESCRIPTOR_PROTOCOLS_BM_T1 (0x00000002U)
• #define USB_DEVICE_CCID_DESCRIPTOR_MECHANICAL_BM_NO (0x00000000U)
• #define USB_DEVICE_CCID_DESCRIPTOR_MECHANICAL_BM_ACCEPT (0x00000001-
U)
• #define USB_DEVICE_CCID_DESCRIPTOR_MECHANICAL_BM_EJECTION (0x00000002-
U)
• #define USB_DEVICE_CCID_DESCRIPTOR_MECHANICAL_BM_CAPTURE (0x00000004-
U)
• #define USB_DEVICE_CCID_DESCRIPTOR_MECHANICAL_BM_LOCK_UNLCO-
K(0x00000008U)
• #define USB_DEVICE_CCID_DESCRIPTOR_FEATURES_BM_NO (0x00000000U)
• #define USB_DEVICE_CCID_DESCRIPTOR_FEATURES_BM_AUTO_CONFIG_BASED-
_ON_ATR (0x00000002U)
• #define USB_DEVICE_CCID_DESCRIPTOR_FEATURES_BM_AUTO_ACTIVE_ON_IN-
SERTING (0x00000004U)
• #define USB_DEVICE_CCID_DESCRIPTOR_FEATURES_BM_AUTO_VOLTAGE_SEL-
ECTION (0x00000008U)
• #define USB_DEVICE_CCID_DESCRIPTOR_FEATURES_BM_AUTO_FREQUENCY_C-
HANGE (0x00000010U)
• #define USB_DEVICE_CCID_DESCRIPTOR_FEATURES_BM_AUTO_BAUD_RATE_C-
HANGE (0x00000020U)
• #define USB_DEVICE_CCID_DESCRIPTOR_FEATURES_BM_AUTO_NEGOTIATIO-
N(0x00000040U)
• #define USB_DEVICE_CCID_DESCRIPTOR_FEATURES_BM_AUTO_PPS (0x00000080-
U)
• #define USB_DEVICE_CCID_DESCRIPTOR_FEATURES_BM_CAN_SET_IN_STOP_M-
ODE (0x00000100U)
• #define USB_DEVICE_CCID_DESCRIPTOR_FEATURES_BM_NAD_VLAUE (0x00000200-
U)
• #define USB_DEVICE_CCID_DESCRIPTOR_FEATURES_BM_AUTO_IFSD_EXCHANG-
E_AS_FIRST (0x00000400U)
• #define USB_DEVICE_CCID_DESCRIPTOR_FEATURES_BM_TPDU_LEVEL_EXCHA-
Freescale Semiconductor
USB Stack Device Reference Manual
87
USB CCID Class driver
NGES (0x00010000U)
• #define USB_DEVICE_CCID_DESCRIPTOR_FEATURES_BM_SHORT_APDU_LEVEL_-
EXCHANGES (0x00020000U)
• #define USB_DEVICE_CCID_DESCRIPTOR_FEATURES_BM_SHORT_EXTENDED_A-
PDU_LEVEL_EXCHANGES (0x00040000U)
• #define USB_DEVICE_CCID_DESCRIPTOR_FEATURES_BM_SUPPORT_SUPPEN-
D(0x00100000U)
• #define USB_DEVICE_CCID_DESCRIPTOR_PIN_SUPPORT_BM_NO (0x00U)
• #define USB_DEVICE_CCID_DESCRIPTOR_PIN_SUPPORT_BM_VERIFICATION_SU-
PPORTED (0x01U)
• #define USB_DEVICE_CCID_DESCRIPTOR_PIN_SUPPORT_BM_MODIFICATION_SU-
PPORTED (0x02U)
USB device CCID class APIs
•usb_status_t USB_DeviceCcidNotifySlotChange (class_handle_t handle, uint8_t slot, usb_device_-
ccid_slot_state_t state)
Notifies the slot status changed.
•usb_status_t USB_DeviceCcidNotifyHardwareError (class_handle_t handle, uint8_t slot, usb_-
device_ccid_hardware_error_t errorCode)
Notifies the slot status changed.
3.8.2 Data Structure Documentation
3.8.2.1 struct _usb_device_ccid_common_command
Data Fields
• uint8_t bMessageType
The message type.
• uint32_t dwLength
Message-specific data length.
• uint8_t bSlot
Identifies the slot number for this command.
• uint8_t bSeq
Sequence number for command.
• uint8_t bParameter1
Parameter1 of the message, message specific.
• uint8_t bParameter2
Parameter2 of the message, message specific.
• uint8_t bParameter3
Parameter3 of the message, message specific.
3.8.2.2 struct _usb_device_ccid_power_on_command
A PC_to_RDR_IccPowerOn message to an inactive slot returns an Answer-To-Reset (ATR) data.
88
USB Stack Device Reference Manual
Freescale Semiconductor
USB CCID Class driver
The response to this command message is the RDR_to_PC_DataBlock response message and the data
returned is the Answer To Reset (ATR) data.
Data Fields
• uint8_t bMessageType
The message type.
• uint32_t dwLength
Message-specific data length.
• uint8_t bSlot
Identifies the slot number for this command.
• uint8_t bSeq
Sequence number for command.
• uint8_t bPowerSelect
Voltage that is applied to the ICC.
• uint8_t bRFU [2]
Reserved for Future Use.
3.8.2.3 struct _usb_device_ccid_power_off_command
The response to this command message is the RDR_to_PC_SlotStatus response message.
Data Fields
• uint8_t bMessageType
The message type.
• uint32_t dwLength
Message-specific data length.
• uint8_t bSlot
Identifies the slot number for this command.
• uint8_t bSeq
Sequence number for command.
• uint8_t bRFU [3]
Reserved for Future Use.
3.8.2.4 struct _usb_device_ccid_get_slot_status_command
The response to this command message is the RDR_to_PC_SlotStatus response message.
Data Fields
• uint8_t bMessageType
The message type.
• uint32_t dwLength
Message-specific data length.
• uint8_t bSlot
Freescale Semiconductor
USB Stack Device Reference Manual
89
USB CCID Class driver
Identifies the slot number for this command.
• uint8_t bSeq
Sequence number for command.
• uint8_t bRFU [3]
Reserved for Future Use.
3.8.2.5 struct _usb_device_ccid_transfer_block_command
The block should never exceed the dwMaxCCIDMessageLength-10 in the Class Descriptor. Parameter
bBWI is only used by CCIDs which use the character level and TPDU level of exchange (as reported in
the dwFeatures parameter in the CCID Functional Descriptor) and only for protocol T=1 transfers.
The response to this command message is the RDR_to_PC_DataBlock response message.
Note
For reference, the absolute maximum block size for a TPDU T=0 block is 260U bytes (5U bytes
command; 255U bytes data), or for a TPDU T=1 block is 259U bytes, or for a short APDU T=1
block is 261U bytes, or for an extended APDU T=1 block is 65544U bytes.
Data Fields
• uint8_t bMessageType
The message type.
• uint32_t dwLength
Size of abData field of this message.
• uint8_t bSlot
Identifies the slot number for this command.
• uint8_t bSeq
Sequence number for command.
• uint8_t bBWI
Used to extend the CCIDs Block Waiting Timeout for this current transfer.
• uint16_t wLevelParameter
Use changes depending on the exchange level reported by the class descriptor in dwFeatures field.
• uint8_t abData [1]
Data block sent to the CCID.
3.8.2.6 struct _usb_device_ccid_get_parameters_command
The response to this command message is the RDR_to_PC_Parameters response message.
Data Fields
• uint8_t bMessageType
The message type.
• uint32_t dwLength
Message-specific data length.
90
USB Stack Device Reference Manual
Freescale Semiconductor
USB CCID Class driver
• uint8_t bSlot
Identifies the slot number for this command.
• uint8_t bSeq
Sequence number for command.
• uint8_t bRFU [3]
Reserved for Future use.
3.8.2.7 struct _usb_device_ccid_reset_parameters_command
This command resets the slot parameters to their default values.
The response to this command message is the RDR_to_PC_Parameters response message.
Data Fields
• uint8_t bMessageType
The message type.
• uint32_t dwLength
Message-specific data length.
• uint8_t bSlot
Identifies the slot number for this command.
• uint8_t bSeq
Sequence number for command.
• uint8_t bRFU [3]
Reserved for Future Use.
3.8.2.8 struct _usb_device_ccid_set_parameters_command
This command is used to change the parameters for a given slot. A CCID which has no automatic features
(dwFeatures=0, 100h, 200h, or 300h) depends on the driver to send this command to set the protocol and
other parameters to the right values necessary to correctly talk to the ICC located in the selected slot. A
CCID which has automatic features automatically sets the protocol and certain parameters based on data
received from the ICC (ATR, PPS, IFSD, or proprietary algorithms). The level of automatism and design
requirements determines which parameters the CCID allow the driver to change. If this command tries
to change a parameter which is not changeable, then the CCID does not change any parameters and the
RDR_to_PC_GetParameters response returns a Command Failed status and the bError field contains the
offset of the "offending" parameter.
The response to this command message is the RDR_to_PC_Parameters response message.
Data Fields
• uint8_t bMessageType
The message type.
• uint32_t dwLength
Size of abProtocolDataStructure field of this message.
• uint8_t bSlot
Freescale Semiconductor
USB Stack Device Reference Manual
91
USB CCID Class driver
Identifies the slot number for this command.
• uint8_t bSeq
Sequence number for command.
• uint8_t bProtocolNum
Specifies what protocol data structure follows.
• uint8_t bRFU [2]
Reserved for Future Use.
• uint8_t abProtocolDataStructure [1]
Protocol Data Structure.
3.8.2.8.0.2 Field Documentation
3.8.2.8.0.2.1 uint8_t usb_device_ccid_set_parameters_command_t::bProtocolNum
00h = Structure for protocol T=0, 01h = Structure for protocol T=1
3.8.2.8.0.2.2 uint8_t usb_device_ccid_set_parameters_command_t::abProtocolDataStructure[1]
For T = 0U, refer to usb_device_ccid_set_parameters_t0_command_t, for T = 1U, refer to usb_device_-
ccid_set_parameters_t1_command_t.
3.8.2.9 struct _usb_device_ccid_set_parameters_t0_command
Protocol Data Structure for Protocol T=0 (bProtocolNum=0) (dwLength=00000005h).
The response to this command message is the RDR_to_PC_Parameters response message.
Data Fields
• uint8_t bMessageType
The message type.
• uint32_t dwLength
(dwLength = 0x05U)
• uint8_t bSlot
Identifies the slot number for this command.
• uint8_t bSeq
Sequence number for command.
• uint8_t bProtocolNum
Structure for protocol T=0.
• uint8_t bRFU [2]
Reserved for Future Use.
• uint8_t bmFindexDindex
Bit7∼4 - Fi, Bit3∼0 - Di.
• uint8_t bmTCCKST0
Bit1 - Convention used(0U for direct, 1U for inverse), other bits is 0.
• uint8_t bGuardTimeT0
Extra guard time between two characters.
• uint8_t bWaitingIntegerT0
WI for T= 0U used to define WWT.
92
USB Stack Device Reference Manual
Freescale Semiconductor
USB CCID Class driver
• uint8_t bClockStop
ICC Clock Stop Support.
3.8.2.9.0.3 Field Documentation
3.8.2.9.0.3.1 uint8_t usb_device_ccid_set_parameters_t0_command_t::bmFindexDindex
3.8.2.9.0.3.2 uint8_t usb_device_ccid_set_parameters_t0_command_t::bGuardTimeT0
3.8.2.10 struct _usb_device_ccid_set_parameters_t1_command
Protocol Data Structure for Protocol T=1 (bProtocolNum=1) (dwLength=00000007h)
The response to this command message is the RDR_to_PC_Parameters response message.
Data Fields
• uint8_t bMessageType
The message type.
• uint32_t dwLength
(dwLength = 0x07U)
• uint8_t bSlot
Identifies the slot number for this command.
• uint8_t bSeq
Sequence number for command.
• uint8_t bProtocolNum
Structure for protocol T=1.
• uint8_t bRFU [2]
Reserved for Future Use.
• uint8_t bmFindexDindex
Bit7∼4 - Fi, Bit3∼0 - Di.
• uint8_t bmTCCKST1
Bit0 - Checksum type(0U for LRC, 1U for CRC).
• uint8_t bGuardTimeT1
Extra guard time.
• uint8_t bmWaitingIntegersT1
Bit7∼4 - BWI(0∼9 valid), Bit3∼0 - CWI(0∼0xF valid)
• uint8_t bClockStop
ICC Clock Stop Support.
• uint8_t bIFSC
Size of negotiated IFSC.
• uint8_t bNadValue
Value = 0x00U if CCID doesn’t support a value other then the default value.
Freescale Semiconductor
USB Stack Device Reference Manual
93
USB CCID Class driver
3.8.2.10.0.4 Field Documentation
3.8.2.10.0.4.1 uint8_t usb_device_ccid_set_parameters_t1_command_t::bmFindexDindex
3.8.2.10.0.4.2 uint8_t usb_device_ccid_set_parameters_t1_command_t::bmTCCKST1
Bit1 - Convention used(0U for direct, 1U for inverse), Bit7∼2 - 0b000100
3.8.2.10.0.4.3 uint8_t usb_device_ccid_set_parameters_t1_command_t::bGuardTimeT1
3.8.2.10.0.4.4 uint8_t usb_device_ccid_set_parameters_t1_command_t::bNadValue
Else value respects ISO/IEC 7816-3, 9.4.2.1
3.8.2.11 union usb_device_ccid_set_parameters_command_common_t
Data Fields
• usb_device_ccid_set_parameters_command_t common
Set ICC parameter common structure.
• usb_device_ccid_set_parameters_t0_command_t t0
Set ICC parameter structure for T0.
• usb_device_ccid_set_parameters_t1_command_t t1
Set ICC parameter structure for T1.
3.8.2.12 struct _usb_device_ccid_escape_command
This command allows the CCID manufacturer to define and access extended features. Information sent
via this command is processed by the CCID control logic.
The response to this command message is the RDR_to_PC_Escape response message.
Data Fields
• uint8_t bMessageType
The message type.
• uint32_t dwLength
Message-specific data length.
• uint8_t bSlot
Identifies the slot number for this command.
• uint8_t bSeq
Sequence number for command.
• uint8_t bRFU [3]
Reserved for future use.
• uint8_t abData [1]
Size of abData field of this message.
94
USB Stack Device Reference Manual
Freescale Semiconductor
USB CCID Class driver
3.8.2.13 struct _usb_device_ccid_clock_command
This command stops or restarts the clock.
The response to this command message is the RDR_to_PC_SlotStatus response message.
Data Fields
• uint8_t bMessageType
The message type.
• uint32_t dwLength
Message-specific data length.
• uint8_t bSlot
Identifies the slot number for this command.
• uint8_t bSeq
Sequence number for command.
• uint8_t bClockCommand
0x00U - Restart clock, 0x01U - Stop clock in the state shown in the bClockStop field of the PC_to_RDR_-
SetParameters command and RDR_to_PC_Parameters message.
• uint8_t bRFU [2]
Reserved for future use.
3.8.2.13.0.5 Field Documentation
3.8.2.13.0.5.1 uint8_t usb_device_ccid_clock_command_t::bClockCommand
3.8.2.14 struct _usb_device_ccid_t0_apdu_command
This command changes the parameters used to perform the transportation of APDU messages by the T=0
protocol. It effects the CLA (class) byte used when issuing a Get Response command or a Envelope
command to the ICC.
This command is slot-specific. It only effects the slot specified in the bSlot field. Slots, when not powered,
do not change back to using the default behaviour defined in the CCID class descriptor. Any newly inserted
ICC has the default behaviour until this command is issued for its slot.
The response to this command message is the RDR_to_PC_SlotStatus response message.
Data Fields
• uint8_t bMessageType
The message type.
• uint32_t dwLength
Message-specific data length.
• uint8_t bSlot
Identifies the slot number for this command.
• uint8_t bSeq
Sequence number for command.
• uint8_t bmChanges
The value is bitwise OR operation.
Freescale Semiconductor
USB Stack Device Reference Manual
95
USB CCID Class driver
• uint8_t bClassGetResponse
Value to force the class byte of the header in a get response command.
• uint8_t bClassEnvelope
Value to force the class byte of the header in a envelope command.
3.8.2.14.0.6 Field Documentation
3.8.2.14.0.6.1 uint8_t usb_device_ccid_t0_apdu_command_t::bmChanges
Bit 0U is associated with field bClassGetResponse Bit 1U is associated with field bClassEnvelope Other
bits are RFU.
3.8.2.15 struct _usb_device_ccid_secure_command
This is a command message to allow entering the PIN for verification or modification.
The response to this command message is the RDR_to_PC_DataBlock response message.
Data Fields
• uint8_t bMessageType
The message type.
• uint32_t dwLength
Size of abData field of this message.
• uint8_t bSlot
Identifies the slot number for this command.
• uint8_t bSeq
Sequence number for command.
• uint8_t bBWI
Used to extend the CCIDs Block Waiting Timeout for this current transfer.
• uint16_t wLevelParameter
Use changes depending on the exchange level reported by CCID in the functional descriptor.
• uint8_t abData [1]
The value depends of wLevelParameters.
3.8.2.15.0.7 Field Documentation
3.8.2.15.0.7.1 uint8_t usb_device_ccid_secure_command_t::abData[1]
When wLevelParameters is 0000h or 0001h abData = abPINOperationDataStructure. For other values of
wLevelParameters this field is the continuation of the previously sent PC_to_RDR_Secure.
3.8.2.16 struct _usb_device_ccid_secure_pin_operation_command
This is a command message to allow entering the PIN for verification or modification.
The response to this command message is the RDR_to_PC_DataBlock response message.
96
USB Stack Device Reference Manual
Freescale Semiconductor
USB CCID Class driver
Data Fields
• uint8_t bMessageType
The message type.
• uint32_t dwLength
1U + Size of abPINDataStructure field of this message
• uint8_t bSlot
Identifies the slot number for this command.
• uint8_t bSeq
Sequence number for command.
• uint8_t bBWI
Used to extend the CCIDs Block Waiting Timeout for this current transfer.
• uint16_t wLevelParameter
Use changes depending on the exchange level reported by CCID in the functional descriptor.
• uint8_t bPINOperation
Used to indicate the PIN operation: 00h: PIN Verification 01h: PIN Modification 02h: Transfer PIN from
secure CCID buffer 03h: Wait ICC response 04h: Cancel PIN function 05h: Re-send last I-Block, valid
only if T = 1.
3.8.2.16.0.8 Field Documentation
3.8.2.16.0.8.1 uint8_t usb_device_ccid_secure_pin_operation_command_t::bPINOperation
06h: Send next part of APDU, valid only T = 1.
3.8.2.17 struct _usb_device_ccid_seucre_pin_verification_command
This is a command message to allow entering the PIN for verification.
The response to this command message is the RDR_to_PC_DataBlock response message.
Data Fields
• uint8_t bMessageType
The message type.
• uint32_t dwLength
12U + Size of abPINApdu field of this message
• uint8_t bSlot
Identifies the slot number for this command.
• uint8_t bSeq
Sequence number for command.
• uint8_t bBWI
Used to extend the CCIDs Block Waiting Timeout for this current transfer.
• uint16_t wLevelParameter
Use changes depending on the exchange level reported by CCID in the functional descriptor.
• uint8_t bPINOperation
Used to indicate the PIN operation: 00h: PIN Verification 01h: PIN Modification 02h: Transfer PIN from
secure CCID buffer 03h: Wait ICC response 04h: Cancel PIN function 05h: Re-send last I-Block, valid
only if T = 1.
Freescale Semiconductor
USB Stack Device Reference Manual
97
USB CCID Class driver
• uint8_t bTimeOut
Number of seconds.
• uint8_t bmFormatString
Several parameters for the PIN format options.
• uint8_t bmPINBlockString
Defines the length in bytes of the PIN block to present in the APDU command.
• uint8_t bmPINLengthFormat
Allows the insertion of the PIN length in the APDU command.
• uint16_t wPINMaxExtraDigit
Bit15∼8 - Minimum PIN size in digit, Bit7∼0 - Maximum PIN size in digit.
• uint8_t bEntryValidationCondition
The value is a bit wise OR operation.
• uint8_t bNumberMessage
Number of messages to display for the PIN Verification management.
• uint16_t wLangId
Language used to display the messages.
• uint8_t bMsgIndex
Message index in the Reader CCID message table (should be 00h).
• uint8_t bTeoPrologue
T=1 I-block prologue field to use.
• uint8_t abPINApdu [1]
APDU to send to the ICC.
3.8.2.17.0.9 Field Documentation
3.8.2.17.0.9.1 uint8_t usb_device_ccid_seucre_pin_verification_command_t::bPINOperation
06h: Send next part of APDU, valid only T = 1.
3.8.2.17.0.9.2 uint8_t usb_device_ccid_seucre_pin_verification_command_t::bEntryValidation-
Condition
01h - Maximum size reached, 02h - Validation key pressed, 04h - Timeout occurred
3.8.2.17.0.9.3 uint8_t usb_device_ccid_seucre_pin_verification_command_t::bNumberMessage
3.8.2.17.0.9.4 uint16_t usb_device_ccid_seucre_pin_verification_command_t::wLangId
3.8.2.17.0.9.5 uint8_t usb_device_ccid_seucre_pin_verification_command_t::bMsgIndex
3.8.2.17.0.9.6 uint8_t usb_device_ccid_seucre_pin_verification_command_t::bTeoPrologue
3.8.2.18 struct _usb_device_ccid_secure_pin_modification_command
This is a command message to allow entering the PIN for modification.
The response to this command message is the RDR_to_PC_DataBlock response message.
98
USB Stack Device Reference Manual
Freescale Semiconductor
USB CCID Class driver
Data Fields
• uint8_t bMessageType
The message type.
• uint32_t dwLength
20U + Size of abPINApdu field of this message
• uint8_t bSlot
Identifies the slot number for this command.
• uint8_t bSeq
Sequence number for command.
• uint8_t bBWI
Used to extend the CCIDs Block Waiting Timeout for this current transfer.
• uint16_t wLevelParameter
Use changes depending on the exchange level reported by CCID in the functional descriptor.
• uint8_t bPINOperation
Used to indicate the PIN operation: 00h: PIN Verification 01h: PIN Modification 02h: Transfer PIN from
secure CCID buffer 03h: Wait ICC response 04h: Cancel PIN function 05h: Re-send last I-Block, valid
only if T = 1.
• uint8_t bTimeOut
Number of seconds.
• uint8_t bmFormatString
Several parameters for the PIN format options.
• uint8_t bmPINBlockString
Define the length of the PIN to present in the APDU command.
• uint8_t bmPINLengthFormat
Allows the length PIN insertion in the APDU command.
• uint8_t bInsertionOffsetOld
Insertion position offset in byte for the current PIN.
• uint8_t bInsertionOffsetNew
Insertion position offset in byte for the new PIN.
• uint16_t wPINMaxExtraDigit
Bit15∼8 - Minimum PIN size in digit, Bit7∼0 - Maximum PIN size in digit.
• uint8_t bConfirmPIN
Indicates if a confirmation is requested before acceptance of a new PIN.
• uint8_t bEntryValidationCondition
The value is a bit wise OR operation.
• uint8_t bNumberMessage
Number of messages to display for the PIN Verification management.
• uint16_t wLangId
Language used to display the messages.
• uint8_t bMsgIndex1
Message index in the Reader message table(should be 00h or 01h).
• uint8_t bMsgIndex2
Message index in the Reader message table(should be 01h or 02h).
• uint8_t bMsgIndex3
Message index in the Reader message table(should be 02h).
• uint8_t bTeoPrologue [3]
T=1 I-block prologue field to use.
• uint8_t abPINApdu [1]
APDU to send to the ICC.
Freescale Semiconductor
USB Stack Device Reference Manual
99
USB CCID Class driver
3.8.2.18.0.10 Field Documentation
3.8.2.18.0.10.1 uint8_t usb_device_ccid_secure_pin_modification_command_t::bPINOperation
06h: Send next part of APDU, valid only T = 1.
3.8.2.18.0.10.2 uint8_t usb_device_ccid_secure_pin_modification_command_t::bEntryValidation-
Condition
01h - Maximum size reached, 02h - Validation key pressed, 04h - Timeout occurred
3.8.2.18.0.10.3 uint8_t usb_device_ccid_secure_pin_modification_command_t::bNumber-
Message
3.8.2.18.0.10.4 uint16_t usb_device_ccid_secure_pin_modification_command_t::wLangId
3.8.2.18.0.10.5 uint8_t usb_device_ccid_secure_pin_modification_command_t::bMsgIndex1
3.8.2.18.0.10.6 uint8_t usb_device_ccid_secure_pin_modification_command_t::bMsgIndex2
3.8.2.18.0.10.7 uint8_t usb_device_ccid_secure_pin_modification_command_t::bMsgIndex3
3.8.2.18.0.10.8 uint8_t usb_device_ccid_secure_pin_modification_command_t::bTeoPrologue[3]
3.8.2.19 struct _usb_device_ccid_mechanical_command
This command is used to manage motorized type CCID functionality.
The response to this command message is the RDR_to_PC_SlotStatus response message.
Data Fields
• uint8_t bMessageType
The message type.
• uint32_t dwLength
Message-specific data length.
• uint8_t bSlot
Identifies the slot number for this command.
• uint8_t bSeq
Sequence number for command.
• uint8_t bFunction
This value corresponds to the mechanical function being requested.
• uint8_t bRFU [2]
Reserved for Future Use.
3.8.2.20 struct _usb_device_ccid_abort_command
This command is used with the control pipe abort request to tell the CCID to stop any current transfer at
the specified slot and return to a state where the slot is ready to accept a new command pipe Bulk-OUT
100
USB Stack Device Reference Manual
Freescale Semiconductor
USB CCID Class driver
message.
The response to this command message is the RDR_to_PC_SlotStatus response message.
Data Fields
• uint8_t bMessageType
The message type.
• uint32_t dwLength
Message-specific data length.
• uint8_t bSlot
Identifies the slot number for this command.
• uint8_t bSeq
Sequence number for command.
• uint8_t bRFU [3]
Reserved for future use.
3.8.2.21 struct _usb_device_ccid_set_data_rate_and_clock_frequency_command
This command is used to manually set the data rate and clock frequency of a specific slot.
The response to this command message is the RDR_to_PC_SlotStatus response message.
Data Fields
• uint8_t bMessageType
The message type.
• uint32_t dwLength
Message-specific data length(8U bytes)
• uint8_t bSlot
Identifies the slot number for this command.
• uint8_t bSeq
Sequence number for command.
• uint8_t bRFU [3]
Reserved for Future Use.
• uint32_t dwClockFrequency
ICC clock frequency in kHz.
• uint32_t dwDataRate
ICC data rate in BPD.
3.8.2.21.0.11 Field Documentation
3.8.2.21.0.11.1 uint32_t usb_device_ccid_set_data_rate_and_clock_frequency_command_t::dw-
ClockFrequency
This is an integer value
Freescale Semiconductor
USB Stack Device Reference Manual
101
USB CCID Class driver
3.8.2.22 struct _usb_device_ccid_common_response
Data Fields
• uint8_t bMessageType
The message type.
• uint32_t dwLength
Message-specific data length.
• uint8_t bSlot
Identifies the slot number for this command.
• uint8_t bSeq
Sequence number for the corresponding command.
• uint8_t bStatus
Slot status register.
• uint8_t bError
Slot error register.
• uint8_t bParameter1
Parameter1 of the message, message specific.
3.8.2.23 struct _usb_device_ccid_data_block_response
The device in response to the following command messages: "PC_to_RDR_IccPowerOn", "PC_to_RDR-
_Secure" and "PC_to_RDR_XfrBlock" sends this response message. For "PC_to_RDR_IccPowerOn" this
response message is the answer to reset (ATR) data associated with the ICC power on. In other use cases,
the response message has the following format: the response data contains the optional data returned by
the ICC, followed by the 2U byte-size status words SW1-SW2.
Data Fields
• uint8_t bMessageType
The message type.
• uint32_t dwLength
Message-specific data length.
• uint8_t bSlot
Identifies the slot number for this command.
• uint8_t bSeq
Sequence number for the corresponding command.
• uint8_t bStatus
Slot status register.
• uint8_t bError
Slot error register.
• uint8_t bChainParameter
Use changes depending on the exchange level reported by the class descriptor in dwFeatures field.
• uint8_t abData [1]
This field contains the data returned by the CCID.
102
USB Stack Device Reference Manual
Freescale Semiconductor
USB CCID Class driver
3.8.2.23.0.12 Field Documentation
3.8.2.23.0.12.1 uint8_t usb_device_ccid_data_block_response_t::abData[1]
3.8.2.24 struct _usb_device_ccid_slot_status_response
The device in response to the following command messages: "PC_to_RDR_IccPowerOff", "PC_to_R-
DR_GetSlotStatus", "PC_to_RDR_IccClock", "PC_to_RDR_T0APDU" and, "PC_to_RDR_Mechanical"
sends this response message. Also, the device sends this response message when it has completed aborting
a slot after receiving both the Class Specific ABORT request and PC_to_RDR_Abort command message.
Data Fields
• uint8_t bMessageType
The message type.
• uint32_t dwLength
Message-specific data length.
• uint8_t bSlot
Identifies the slot number for this command.
• uint8_t bSeq
Sequence number for the corresponding command.
• uint8_t bStatus
Slot status register.
• uint8_t bError
Slot error register.
• uint8_t bClockStatus
0x00U - Clock running, 0x01U - Clock stopped in L, 0x02U - clock stopped in H, and 0x03U - clock
stopped in an unknown state.
3.8.2.24.0.13 Field Documentation
3.8.2.24.0.13.1 uint8_t usb_device_ccid_slot_status_response_t::bClockStatus
3.8.2.25 struct _usb_device_ccid_parameters_response
The device in response to the following command messages: "PC_to_RDR_GetParameters", "PC_to_R-
DR_ResetParameters", and, "PC_to_RDR_SetParameters" sends this response message.
Data Fields
• uint8_t bMessageType
The message type.
• uint32_t dwLength
Size of abProtocolDataStructure field of this message.
• uint8_t bSlot
Identifies the slot number for this command.
• uint8_t bSeq
Sequence number for the corresponding command.
Freescale Semiconductor
USB Stack Device Reference Manual
103
USB CCID Class driver
• uint8_t bStatus
Slot status register.
• uint8_t bError
Slot error register.
• uint8_t bProtocolNum
0x00U = Structure for protocol T=0, 0x01U = Structure for protocol T=1
• uint8_t abProtocolDataStructure [1]
Protocol Data Structure.
3.8.2.26 struct _usb_device_ccid_parameters_T0_response
The device in response to the following command messages: "PC_to_RDR_GetParameters", "PC_to_R-
DR_ResetParameters", and, "PC_to_RDR_SetParameters" sends this response message.
Data Fields
• uint8_t bMessageType
The message type.
• uint32_t dwLength
The value is 0x05U.
• uint8_t bSlot
Identifies the slot number for this command.
• uint8_t bSeq
Sequence number for the corresponding command.
• uint8_t bStatus
Slot status register.
• uint8_t bError
Slot error register.
• uint8_t bProtocolNum
0x00U = Structure for protocol T=0
• uint8_t bmFindexDindex
Bit7∼4 - Fi, Bit3∼0 - Di.
• uint8_t bmTCCKST0
Bit1 - Convention used(0U for direct, 1U for inverse), other bits is 0.
• uint8_t bGuardTimeT0
Extra guard time between two characters.
• uint8_t bWaitingIntegerT0
WI for T= 0U used to define WWT.
• uint8_t bClockStop
ICC Clock Stop Support.
104
USB Stack Device Reference Manual
Freescale Semiconductor
USB CCID Class driver
3.8.2.26.0.14 Field Documentation
3.8.2.26.0.14.1 uint8_t usb_device_ccid_parameters_T0_response_t::bmFindexDindex
3.8.2.26.0.14.2 uint8_t usb_device_ccid_parameters_T0_response_t::bGuardTimeT0
3.8.2.27 struct _usb_device_ccid_parameters_T1_response
The device in response to the following command messages: "PC_to_RDR_GetParameters", "PC_to_R-
DR_ResetParameters", and, "PC_to_RDR_SetParameters" sends this response message.
Data Fields
• uint8_t bMessageType
The message type.
• uint32_t dwLength
The value is 0x07U.
• uint8_t bSlot
Identifies the slot number for this command.
• uint8_t bSeq
Sequence number for the corresponding command.
• uint8_t bStatus
Slot status register.
• uint8_t bError
Slot error register.
• uint8_t bProtocolNum
0x00U = Structure for protocol T=1
• uint8_t bmFindexDindex
Bit7∼4 - Fi, Bit3∼0 - Di.
• uint8_t bmTCCKST1
Bit0 - Checksum type(0U for LRC, 1U for CRC).
• uint8_t bGuardTimeT1
Extra guard time.
• uint8_t bmWaitingIntegersT1
Bit7∼4 - BWI(0∼9 valid), Bit3∼0 - CWI(0∼0xF valid)
• uint8_t bClockStop
ICC Clock Stop Support.
• uint8_t bIFSC
Size of negotiated IFSC.
• uint8_t bNadValue
Value = 0x00U if CCID doesn’t support a value other then the default value.
3.8.2.27.0.15 Field Documentation
3.8.2.27.0.15.1 uint8_t usb_device_ccid_parameters_T1_response_t::bmFindexDindex
3.8.2.27.0.15.2 uint8_t usb_device_ccid_parameters_T1_response_t::bmTCCKST1
Bit1 - Convention used(0U for direct, 1U for inverse), Bit7∼2 - 0b000100
Freescale Semiconductor
USB Stack Device Reference Manual
105
USB CCID Class driver
3.8.2.27.0.15.3 uint8_t usb_device_ccid_parameters_T1_response_t::bGuardTimeT1
3.8.2.27.0.15.4 uint8_t usb_device_ccid_parameters_T1_response_t::bNadValue
Else value respects ISO/IEC 7816-3, 9.4.2.1
3.8.2.28 union usb_device_ccid_parameters_response_common_t
Data Fields
• usb_device_ccid_parameters_response_t common
Response ICC parameter common structure.
• usb_device_ccid_parameters_T0_response_t t0
Response ICC parameter structure for T0.
• usb_device_ccid_parameters_T1_response_t t1
Response ICC parameter structure for T1.
3.8.2.29 struct _usb_device_ccid_escape_response
The device in response to the following command messages: "PC_to_RDR_Escape" sends this response
message.
Data Fields
• uint8_t bMessageType
The message type.
• uint32_t dwLength
Size of abData field of this message.
• uint8_t bSlot
Identifies the slot number for this command.
• uint8_t bSeq
Sequence number for the corresponding command.
• uint8_t bStatus
Slot status register.
• uint8_t bError
Slot error register.
• uint8_t bRFU
Reserved for Future Use.
• uint8_t abData [1]
Data sent from CCID.
3.8.2.30 struct _usb_device_ccid_data_rate_and_clock_frequency_response
The device in response to the following command messages: "PC_to_RDR_SetDataRateAndClock-
Frequency" sends this response message.
106
USB Stack Device Reference Manual
Freescale Semiconductor
USB CCID Class driver
Data Fields
• uint8_t bMessageType
The message type.
• uint32_t dwLength
Message-specific data length.
• uint8_t bSlot
Identifies the slot number for this command.
• uint8_t bSeq
Sequence number for the corresponding command.
• uint8_t bStatus
Slot status register.
• uint8_t bError
Slot error register.
• uint8_t bRFU
Reserved for Future Use.
• uint32_t dwClockFrequency
Current setting of the ICC clock frequency in KHz.
• uint32_t dwDataRate
Current setting of the ICC data rate in bps.
3.8.2.30.0.16 Field Documentation
3.8.2.30.0.16.1 uint32_t usb_device_ccid_data_rate_and_clock_frequency_response_t::dwClock-
Frequency
This is an integer value
3.8.2.30.0.16.2 uint32_t usb_device_ccid_data_rate_and_clock_frequency_response_t::dwData-
Rate
This is an integer value
3.8.2.31 struct _usb_device_ccid_notify_slot_chnage_notification
Data Fields
• uint8_t bMessageType
The message type.
• uint8_t bmSlotICCState [1]
This field is reported on byte granularity.
Freescale Semiconductor
USB Stack Device Reference Manual
107
USB CCID Class driver
3.8.2.31.0.17 Field Documentation
3.8.2.31.0.17.1 uint8_t usb_device_ccid_notify_slot_chnage_notification_t::bmSlotICCState[1]
3.8.2.32 struct _usb_device_ccid_hardware_error_notification
Data Fields
• uint8_t bMessageType
The message type.
• uint8_t bSlot
Identifies the slot number for this command.
• uint8_t bSeq
Sequence number of bulk out command when the hardware error occurred.
• uint8_t bHardwareErrorCode
0x01U - Over current.
3.8.2.32.0.18 Field Documentation
3.8.2.32.0.18.1 uint8_t usb_device_ccid_hardware_error_notification_t::bHardwareErrorCode
3.8.2.33 struct usb_device_ccid_transfer_struct_t
Data Fields
• struct
_usb_device_ccid_transfer_struct ∗next
Next transfer pointer.
• uint8_t ∗buffer
The transfer buffer address need to be sent.
• uint32_t length
The transfer length.
• usb_device_ccid_slot_status_response_t response
Response buffer is used when dwLength = 0.
3.8.2.33.0.19 Field Documentation
3.8.2.33.0.19.1 usb_device_ccid_slot_status_response_t usb_device_ccid_transfer_struct_t-
::response
3.8.2.34 struct usb_device_ccid_control_request_struct_t
Data Fields
• uint8_t ∗buffer
The buffer address.
• uint32_t length
the data length
108
USB Stack Device Reference Manual
Freescale Semiconductor
USB CCID Class driver
3.8.2.35 struct usb_device_ccid_notification_struct_t
Data Fields
• uint8_t ∗buffer
The transferred buffer address.
• uint32_t length
The transferred data length.
3.8.2.36 struct usb_device_ccid_command_struct_t
Data Fields
• uint8_t ∗commandBuffer
The buffer address kept the command from host.
• uint32_t commandLength
The command length from host.
• uint8_t ∗responseBuffer
The response data need to be sent to host.
• uint32_t responseLength
The response data length.
3.8.2.37 struct usb_device_ccid_slot_status_struct_t
Data Fields
• uint8_t slot
The slot number need to get.
• uint8_t present
Is present or not.
• uint8_t clockStatus
The clock status.
3.8.2.38 struct usb_device_ccid_struct_t
Data Fields
•usb_device_handle handle
The device handle.
•usb_device_class_config_struct_t ∗configStruct
The configuration of the class.
•usb_device_interface_struct_t ∗interfaceHandle
Current interface handle.
•usb_device_ccid_transfer_struct_t ∗transferHead
Transfer queue for busy.
•usb_device_ccid_transfer_struct_t ∗transferFree
Transfer queue for idle.
Freescale Semiconductor
USB Stack Device Reference Manual
109
USB CCID Class driver
• uint8_t commandBuffer [USB_DEVICE_CCID_BUFFER_4BYTE_ALIGN(USB_DEVICE_CO-
NFIG_CCID_MAX_MESSAGE_LENGTH)]
Command buffer for getting command data from host.
•usb_device_ccid_transfer_struct_t transfers [USB_DEVICE_CONFIG_CCID_TRANSFER_COU-
NT]
Transfer entity.
• uint8_t slotsChangeBuffer [(USB_DEVICE_CONFIG_CCID_SLOT_MAX ∗2-1U)/8+1U+1U]
The buffer for saving slot status.
• uint8_t slotsSendingChangeBuffer [(USB_DEVICE_CONFIG_CCID_SLOT_MAX ∗2-1U)/8+1-
U+1U]
The buffer is used to notify host the slot status changed.
• uint8_t slotsSequenceNumber [USB_DEVICE_CONFIG_CCID_SLOT_MAX]
Save each slot sequence number.
• usb_device_ccid_hardware_error_notification_t hardwareError
The buffer is used to notify host the hardware error happened.
• uint8_t configuration
Current configuration.
• uint8_t interfaceNumber
The interface number of the class.
• uint8_t alternate
Current alternate setting of the interface.
• uint8_t endpointInterruptIn
The endpoint number of the interrupt IN pipe.
• uint8_t endpointBulkIn
The endpoint number of the bulk IN pipe.
• uint8_t endpointBulkOut
The endpoint number of the bulk OUT pipe.
• uint8_t slots
The slot number of the application.
• uint8_t bulkInBusy
The bulk IN pipe is busy or not.
• uint8_t interruptInBusy
The interrupt IN pipe is busy or not.
• uint8_t slotsChanged
The slot status changed.
110
USB Stack Device Reference Manual
Freescale Semiconductor
USB CCID Class driver
3.8.2.38.0.20 Field Documentation
3.8.2.38.0.20.1 usb_device_class_config_struct_t∗usb_device_ccid_struct_t::configStruct
3.8.2.38.0.20.2 uint8_t usb_device_ccid_struct_t::bulkInBusy
3.8.2.38.0.20.3 uint8_t usb_device_ccid_struct_t::interruptInBusy
3.8.3 Macro Definition Documentation
3.8.3.1 #define USB_DEVICE_CONFIG_CCID_SLOT_MAX (1U)
3.8.3.2 #define USB_DEVICE_CONFIG_CCID_TRANSFER_COUNT (4U)
3.8.3.3 #define USB_DEVICE_CONFIG_CCID_MAX_MESSAGE_LENGTH (271U)
3.8.3.4 #define USB_DEVICE_CCID_COMMAND_HEADER_LENGTH (0x0AU)
3.8.3.5 #define USB_DEVICE_CCID_RESPONSE_HEADER_LENGTH (0x0AU)
3.8.4 Enumeration Type Documentation
3.8.4.1 enum usb_device_ccid_event_t
Enumerator
kUSB_DeviceCcidEventCommandReceived Command received in BULK OUT pipe.
kUSB_DeviceCcidEventResponseSent Response sent in BULK IN pipe.
kUSB_DeviceCcidEventGetSlotCount Get the slot count.
kUSB_DeviceCcidEventGetSlotStatus Get the slot status, including clock status, ICC present.
kUSB_DeviceCcidEventCommandAbort Command abort request received from control pipe.
kUSB_DeviceCcidEventGetClockFrequencies Get the clock frequencies.
kUSB_DeviceCcidEventGetDataRate Get the data rate.
kUSB_DeviceCcidEventSlotChangeSent Slot changed notification send completed.
kUSB_DeviceCcidEventHardwareErrorSent Hardware error notification send completed.
3.8.4.2 enum usb_device_ccid_slot_state_t
Enumerator
kUSB_DeviceCcidSlotStateNoPresent Not present.
kUSB_DeviceCcidSlotStatePresent Present.
Freescale Semiconductor
USB Stack Device Reference Manual
111
USB CCID Class driver
3.8.4.3 enum usb_device_ccid_hardware_error_t
Enumerator
kUSB_DeviceCcidHardwareErrorOverCurrent Over current.
3.8.5 Function Documentation
3.8.5.1 usb_status_t USB_DeviceCcidInit ( uint8_t controllerId, usb_-
device_class_config_struct_t ∗config, class_handle_t ∗handle
)
This function is used to initialize the CCID class. This function only can be called by USB_DeviceClass-
Init.
Parameters
in controllerId The controller ID of the USB IP. See the enumeration usb_controller_-
index_t.
in config The class configuration information.
out handle An out parameter used to return pointer of the video class handle to the
caller.
Returns
A USB error code or kStatus_USB_Success.
3.8.5.2 usb_status_t USB_DeviceCcidDeinit ( class_handle_t handle )
The function deinitializes the device CCID class. This function can only be called by USB_DeviceClass-
Deinit.
Parameters
in handle The CCID class handle received from usb_device_class_config_struct-
_t::classHandle.
Returns
A USB error code or kStatus_USB_Success.
112
USB Stack Device Reference Manual
Freescale Semiconductor
USB CCID Class driver
3.8.5.3 usb_status_t USB_DeviceCcidEvent ( void ∗handle, uint32_t event, void ∗param
)
This function handles the event passed to the CCID class. This function can only be called by USB_-
DeviceClassEvent.
Freescale Semiconductor
USB Stack Device Reference Manual
113
USB CCID Class driver
Parameters
in handle The CCID class handle, received from the usb_device_class_config_-
struct_t::classHandle.
in event The event codes. Please refer to the enumeration usb_device_class_-
event_t.
in,out param The parameter type is determined by the event code.
Returns
A USB error code or kStatus_USB_Success.
Return values
kStatus_USB_Success Free device handle successfully.
kStatus_USB_Invalid-
Parameter
The device handle not be found.
kStatus_USB_Invalid-
Request
The request is invalid and the control pipe is stalled by the caller.
3.8.5.4 usb_status_t USB_DeviceCcidNotifySlotChange ( class_handle_t handle, uint8_t
slot, usb_device_ccid_slot_state_t state )
The function is used to notify that the slot status changed. This is a non-blocking function. The event
kUSB_DeviceCcidEventSlotChangeSent is asserted when the transfer completed.
The slot status may not be sent to the host if the interrupt IN pipe is busy. The status is saved internally
and sent to the host when the interrupt IN pipe callback called. So, the event kUSB_DeviceCcidEvent-
SlotChangeSent happened times does not equal to the function call times of this function.
Parameters
in handle The CCID class handle received from usb_device_class_config_struct-
_t::classHandle.
in slot The changed slot number.
in state The changed slot status.
Returns
A USB error code or kStatus_USB_Success.
114
USB Stack Device Reference Manual
Freescale Semiconductor
USB CCID Class driver
3.8.5.5 usb_status_t USB_DeviceCcidNotifyHardwareError ( class_handle_t handle,
uint8_t slot, usb_device_ccid_hardware_error_t errorCode )
The function is used to notify the hardware error. This is a non-blocking function. The event kUSB_-
DeviceCcidEventHardwareErrorSent is asserted when the transfer completed.
If the interrupt IN pipe is busy, the function returns an error kStatus_USB_Error.
Parameters
in handle The CCID class handle received from usb_device_class_config_struct-
_t::classHandle.
in slot The changed slot number.
in errorCode The hardware error code.
Returns
A USB error code or kStatus_USB_Success.
Freescale Semiconductor
USB Stack Device Reference Manual
115
USB HID Class driver
3.9 USB HID Class driver
3.9.1 Overview
Data Structures
• struct usb_device_hid_report_struct_t
The device HID GET/SET report structure. More...
• struct usb_device_hid_struct_t
The HID device class status structure. More...
Macros
• #define USB_DEVICE_CONFIG_HID_CLASS_CODE (0x03U)
The class code of the HID class.
• #define USB_DEVICE_HID_REQUEST_GET_REPORT (0x01U)
Request code to get report of HID class.
• #define USB_DEVICE_HID_REQUEST_GET_IDLE (0x02U)
Request code to get idle of HID class.
• #define USB_DEVICE_HID_REQUEST_GET_PROTOCOL (0x03U)
Request code to get protocol of HID class.
• #define USB_DEVICE_HID_REQUEST_SET_REPORT (0x09U)
Request code to set report of HID class.
• #define USB_DEVICE_HID_REQUEST_SET_IDLE (0x0AU)
Request code to set idle of HID class.
• #define USB_DEVICE_HID_REQUEST_SET_PROTOCOL (0x0BU)
Request code to set protocol of HID class.
Enumerations
• enum usb_device_hid_event_t {
kUSB_DeviceHidEventSendResponse = 0x01U,
kUSB_DeviceHidEventRecvResponse,
kUSB_DeviceHidEventGetReport,
kUSB_DeviceHidEventGetIdle,
kUSB_DeviceHidEventGetProtocol,
kUSB_DeviceHidEventSetReport,
kUSB_DeviceHidEventSetIdle,
kUSB_DeviceHidEventSetProtocol,
kUSB_DeviceHidEventRequestReportBuffer }
Available common EVENT types in HID class callback.
116
USB Stack Device Reference Manual
Freescale Semiconductor
USB HID Class driver
Functions
•usb_status_t USB_DeviceHidInit (uint8_t controllerId, usb_device_class_config_struct_t ∗config,
class_handle_t ∗handle)
Initializes the HID class.
•usb_status_t USB_DeviceHidDeinit (class_handle_t handle)
Deinitializes the device HID class.
•usb_status_t USB_DeviceHidEvent (void ∗handle, uint32_t event, void ∗param)
Handles the event passed to the HID class.
USB device HID class APIs
•usb_status_t USB_DeviceHidSend (class_handle_t handle, uint8_t ep, uint8_t ∗buffer, uint32_t
length)
Sends data through a specified endpoint.
•usb_status_t USB_DeviceHidRecv (class_handle_t handle, uint8_t ep, uint8_t ∗buffer, uint32_t
length)
Receives data through a specified endpoint.
3.9.2 Data Structure Documentation
3.9.2.1 struct usb_device_hid_report_struct_t
This structure is used to pass data when the event type is kUSB_DeviceHidEventGetReport, kUSB_-
DeviceHidEventSetReport, and kUSB_DeviceHidEventRequestReportBuffer.
1. kUSB_DeviceHidEventGetReport The structure is used to save the report buffer and report length
got from the application. The reportBuffer is the report data buffer address filled by the application.
The reportLength is the report length. The reportType is the requested report type. The reportId is
the requested report ID.
2. kUSB_DeviceHidEventSetReport The structure is used to pass the report data received from the
host to the application. The reportBuffer is buffer address of the report data received from the host.
The reportLength is the report data length. The reportType is the requested report type. The reportId
is the requested report ID.
3. kUSB_DeviceHidEventRequestReportBuffer The structure is used to get the buffer to save the report
data sent by the host. The reportBuffer is buffer address to receive to report data. It is filled by the
application. The reportLength is the requested report data buffer length. The reportType is the
requested report type. The reportId is the requested report ID.
Data Fields
• uint8_t ∗reportBuffer
The report buffer address.
• uint32_t reportLength
The report data length.
Freescale Semiconductor
USB Stack Device Reference Manual
117
USB HID Class driver
• uint8_t reportType
The report type.
• uint8_t reportId
The report ID.
3.9.2.2 struct usb_device_hid_struct_t
Data Fields
•usb_device_handle handle
The device handle.
•usb_device_class_config_struct_t ∗configStruct
The configuration of the class.
•usb_device_interface_struct_t ∗interfaceHandle
Current interface handle.
• uint8_t configuration
Current configuration.
• uint8_t interfaceNumber
The interface number of the class.
• uint8_t alternate
Current alternate setting of the interface.
• uint8_t idleRate
The idle rate of the HID device.
• uint8_t protocol
Current protocol.
• uint8_t interruptInPipeBusy
Interrupt IN pipe busy flag.
• uint8_t interruptOutPipeBusy
Interrupt OUT pipe busy flag.
118
USB Stack Device Reference Manual
Freescale Semiconductor
USB HID Class driver
3.9.2.2.0.21 Field Documentation
3.9.2.2.0.21.1 usb_device_class_config_struct_t∗usb_device_hid_struct_t::configStruct
3.9.3 Macro Definition Documentation
3.9.3.1 #define USB_DEVICE_HID_REQUEST_GET_REPORT (0x01U)
3.9.3.2 #define USB_DEVICE_HID_REQUEST_GET_IDLE (0x02U)
3.9.3.3 #define USB_DEVICE_HID_REQUEST_GET_PROTOCOL (0x03U)
3.9.3.4 #define USB_DEVICE_HID_REQUEST_SET_REPORT (0x09U)
3.9.3.5 #define USB_DEVICE_HID_REQUEST_SET_IDLE (0x0AU)
3.9.3.6 #define USB_DEVICE_HID_REQUEST_SET_PROTOCOL (0x0BU)
3.9.4 Enumeration Type Documentation
3.9.4.1 enum usb_device_hid_event_t
Enumerator
kUSB_DeviceHidEventSendResponse Send data completed.
kUSB_DeviceHidEventRecvResponse Data received.
kUSB_DeviceHidEventGetReport Get report request.
kUSB_DeviceHidEventGetIdle Get idle request.
kUSB_DeviceHidEventGetProtocol Get protocol request.
kUSB_DeviceHidEventSetReport Set report request.
kUSB_DeviceHidEventSetIdle Set idle request.
kUSB_DeviceHidEventSetProtocol Set protocol request.
kUSB_DeviceHidEventRequestReportBuffer Get buffer to save the data of the set report request.
3.9.5 Function Documentation
3.9.5.1 usb_status_t USB_DeviceHidInit ( uint8_t controllerId, usb_device_class_config_-
struct_t ∗config, class_handle_t ∗handle )
This function is used to initialize the HID class. This function only can be called by USB_DeviceClassInit.
Freescale Semiconductor
USB Stack Device Reference Manual
119
USB HID Class driver
Parameters
in controllerId The controller ID of the USB IP. See the enumeration usb_controller_-
index_t.
in config The class configuration information.
out handle An parameter used to return pointer of the HID class handle to the caller.
Returns
A USB error code or kStatus_USB_Success.
3.9.5.2 usb_status_t USB_DeviceHidDeinit ( class_handle_t handle )
The function deinitializes the device HID class. This function only can be called by USB_DeviceClass-
Deinit.
Parameters
in handle The HID class handle got from usb_device_class_config_struct_t::class-
Handle.
Returns
A USB error code or kStatus_USB_Success.
3.9.5.3 usb_status_t USB_DeviceHidEvent ( void ∗handle, uint32_t event, void ∗param )
This function handles the event passed to the HID class. This function only can be called by USB_Device-
ClassEvent.
Parameters
in handle The HID class handle received from the usb_device_class_config_-
struct_t::classHandle.
in event The event codes. See the enumeration usb_device_class_event_t.
in,out param The parameter type is determined by the event code.
Returns
A USB error code or kStatus_USB_Success.
120
USB Stack Device Reference Manual
Freescale Semiconductor
USB HID Class driver
Return values
kStatus_USB_Success Free device handle successfully.
kStatus_USB_Invalid-
Parameter
The device handle not be found.
kStatus_USB_Invalid-
Request
The request is invalid, and the control pipe is stalled by the caller.
3.9.5.4 usb_status_t USB_DeviceHidSend ( class_handle_t handle, uint8_t ep, uint8_t ∗
buffer, uint32_t length )
The function is used to send data through a specified endpoint. The function calls USB_DeviceSend-
Request internally.
Parameters
in handle The HID class handle received from usb_device_class_config_struct_t-
::classHandle.
in ep Endpoint index.
in buffer The memory address to hold the data need to be sent.
in length The data length to be sent.
Returns
A USB error code or kStatus_USB_Success.
Note
The return value indicates whether the sending request is successful or not. The transfer done is
notified by usb_device_hid_interrupt_in. Currently, only one transfer request can be supported for
one specific endpoint. If there is a specific requirement to support multiple transfer requests for a
specific endpoint, the application should implement a queue in the application level. The subsequent
transfer can begin only when the previous transfer is done (a notification is received through the
endpoint callback).
3.9.5.5 usb_status_t USB_DeviceHidRecv ( class_handle_t handle, uint8_t ep, uint8_t ∗
buffer, uint32_t length )
The function is used to receive data through a specified endpoint. The function calls USB_DeviceRecv-
Request internally.
Freescale Semiconductor
USB Stack Device Reference Manual
121
USB HID Class driver
Parameters
in handle The HID class handle received from the usb_device_class_config_-
struct_t::classHandle.
in ep Endpoint index.
in buffer The memory address to save the received data.
in length The data length to be received.
Returns
A USB error code or kStatus_USB_Success.
Note
The return value indicates whether the receiving request is successful or not. The transfer done is
notified by usb_device_hid_interrupt_out. Currently, only one transfer request can be supported for a
specific endpoint. If there is a specific requirement to support multiple transfer requests for a specific
endpoint, the application should implement a queue in the application level. The subsequent transfer
can begin only when the previous transfer is done (a notification is received through the endpoint
callback).
122
USB Stack Device Reference Manual
Freescale Semiconductor
USB PHDC Class driver
3.10 USB PHDC Class driver
3.10.1 Overview
Data Structures
• struct usb_device_phdc_pipe_t
Definition of pipe structure. More...
• struct usb_device_phdc_struct_t
The PHDC device class status structure. More...
Macros
• #define USB_DEVICE_CONFIG_PHDC_CLASS_CODE (0x0F)
The class code of the PHDC class.
• #define USB_DEVICE_PHDC_REQUEST_SET_FEATURE (0x03)
The PHDC class set Meta-data message preamble feature request.
• #define USB_DEVICE_PHDC_REQUEST_CLEAR_FEATURE (0x01)
The PHDC class clear Meta-data message preamble feature request.
• #define USB_DEVICE_PHDC_REQUEST_GET_STATUS (0x00)
The PHDC class get data status request.
Enumerations
• enum usb_device_phdc_event_t {
kUSB_DevicePhdcEventInterruptInSendComplete = 0x01,
kUSB_DevicePhdcEventBulkInSendComplete,
kUSB_DevicePhdcEventDataReceived,
kUSB_DevicePhdcEventSetFeature,
kUSB_DevicePhdcEventClearFeature,
kUSB_DevicePhdcEventGetStatus }
Available common EVENT types in PHDC class callback.
Functions
•usb_status_t USB_DevicePhdcInit (uint8_t controllerId, usb_device_class_config_struct_t ∗config,
class_handle_t ∗handle)
Initializes the PHDC class.
•usb_status_t USB_DevicePhdcDeinit (class_handle_t handle)
Deinitializes the device PHDC class.
•usb_status_t USB_DevicePhdcEvent (void ∗handle, uint32_t event, void ∗param)
Handles the event passed to the PHDC class.
Freescale Semiconductor
USB Stack Device Reference Manual
123
USB PHDC Class driver
USB device PHDC class APIs
•usb_status_t USB_DevicePhdcSend (class_handle_t handle, uint8_t ep, uint8_t ∗buffer, uint32_t
length)
Sends data through a specified endpoint.
•usb_status_t USB_DevicePhdcRecv (class_handle_t handle, uint8_t ep, uint8_t ∗buffer, uint32_t
length)
Receives data through a specified endpoint.
3.10.2 Data Structure Documentation
3.10.2.1 struct usb_device_phdc_pipe_t
Data Fields
• uint8_t ep
The endpoint number of the pipe.
• uint8_t isBusy
1: The pipe is transferring packet, 0: The pipe is idle.
3.10.2.1.0.22 Field Documentation
3.10.2.1.0.22.1 uint8_t usb_device_phdc_pipe_t::ep
3.10.2.1.0.22.2 uint8_t usb_device_phdc_pipe_t::isBusy
3.10.2.2 struct usb_device_phdc_struct_t
Data Fields
•usb_device_handle handle
The device handle.
•usb_device_class_config_struct_t ∗configStruct
The configuration of the class.
•usb_device_interface_struct_t ∗interfaceHandle
Current interface handle.
•usb_device_phdc_pipe_t bulkIn
The bulk in pipe for sending data.
•usb_device_phdc_pipe_t bulkOut
The bulk out pipe for receiving data.
•usb_device_phdc_pipe_t interruptIn
The interrupt in pipe for sending data.
• uint8_t configuration
Current configuration.
• uint8_t interfaceNumber
The interface number of the class.
• uint8_t alternate
Current alternate setting of the interface.
124
USB Stack Device Reference Manual
Freescale Semiconductor
USB PHDC Class driver
3.10.2.2.0.23 Field Documentation
3.10.2.2.0.23.1 usb_device_class_config_struct_t∗usb_device_phdc_struct_t::configStruct
3.10.3 Enumeration Type Documentation
3.10.3.1 enum usb_device_phdc_event_t
Enumerator
kUSB_DevicePhdcEventInterruptInSendComplete Send data completed.
kUSB_DevicePhdcEventBulkInSendComplete Send data completed.
kUSB_DevicePhdcEventDataReceived Data received.
kUSB_DevicePhdcEventSetFeature Set feature request.
kUSB_DevicePhdcEventClearFeature Clear feature request.
kUSB_DevicePhdcEventGetStatus Get status request.
3.10.4 Function Documentation
3.10.4.1 usb_status_t USB_DevicePhdcInit ( uint8_t controllerId, usb_-
device_class_config_struct_t ∗config, class_handle_t ∗handle
)
This function is used to initialize the PHDC class.
Parameters
controllerId The controller ID of the USB IP. See the enumeration usb_controller_index_t.
config The class configuration information.
handle An output parameter used to return pointer of the PHDC class handle to the caller.
Return values
kStatus_USB_Success The PHDC class is initialized successfully.
kStatus_USB_Busy No PHDC device handle available for allocation.
kStatus_USB_Invalid-
Handle
The PHDC device handle allocation failure.
Freescale Semiconductor
USB Stack Device Reference Manual
125
USB PHDC Class driver
kStatus_USB_Invalid-
Parameter
The USB device handle allocation failure.
3.10.4.2 usb_status_t USB_DevicePhdcDeinit ( class_handle_t handle )
The function deinitializes the device PHDC class.
Parameters
handle The PHDC class handle received from usb_device_class_config_struct_t::class-
Handle.
Return values
kStatus_USB_Invalid-
Handle
The device handle is not found.
kStatus_USB_Success The PHDC class is de-initialized successful.
3.10.4.3 usb_status_t USB_DevicePhdcEvent ( void ∗handle, uint32_t event, void ∗
param )
This function handles the event passed to the PHDC class.
Parameters
in handle The PHDC class handle received from the usb_device_class_config_-
struct_t::classHandle.
in event The event codes. See the enumeration usb_device_class_event_t.
in,out param The parameter type is determined by the event code.
Return values
kStatus_USB_Success Free device handle successfully.
kStatus_USB_Invalid-
Parameter
The device handle is not found.
126
USB Stack Device Reference Manual
Freescale Semiconductor
USB PHDC Class driver
kStatus_USB_Invalid-
Request
The request is invalid and the control pipe is stalled by the caller.
3.10.4.4 usb_status_t USB_DevicePhdcSend ( class_handle_t handle, uint8_t ep, uint8_t
∗buffer, uint32_t length )
The function is used to send data through a specified endpoint. The function calls USB_DeviceSend-
Request internally.
Parameters
in handle The PHDC class handle received from the usb_device_class_config_-
struct_t::classHandle.
in ep Endpoint index.
in buffer The memory address to hold the data to be sent.
in length The data length to be sent.
Return values
kStatus_USB_Invalid-
Handle
The device handle is not found.
kStatus_USB_Busy The previous transfer is pending.
kStatus_USB_Success The sending is successful.
3.10.4.5 usb_status_t USB_DevicePhdcRecv ( class_handle_t handle, uint8_t ep, uint8_t
∗buffer, uint32_t length )
The function is used to receive data through a specified endpoint. The function calls the USB_Device-
RecvRequest internally.
Parameters
in handle The PHDC class handle received from usb_device_class_config_struct-
_t::classHandle.
in ep Endpoint index.
Freescale Semiconductor
USB Stack Device Reference Manual
127
USB PHDC Class driver
in buffer The memory address to save the received data.
in length The data length want to be received.
Return values
kStatus_USB_Invalid-
Handle
The device handle is not found.
kStatus_USB_Busy The previous transfer is pending.
kStatus_USB_Success The receiving is successful.
128
USB Stack Device Reference Manual
Freescale Semiconductor
USB VIDEO Class driver
3.11 USB VIDEO Class driver
3.11.1 Overview
Data Structures
• struct usb_device_video_mjpeg_payload_header_struct_t
The payload header structure for MJPEG payload format. More...
• struct usb_device_video_probe_and_commit_controls_struct_t
The Video probe and commit controls structure. More...
• struct usb_device_video_still_probe_and_commit_controls_struct_t
The Video still probe and still commit controls structure. More...
• struct usb_device_video_entity_struct_t
The video device class-specific information. More...
• struct usb_device_video_entities_struct_t
The video device class-specific information list. More...
• struct usb_device_video_struct_t
The video device class status structure. More...
Macros
• #define USB_DEVICE_VIDEO_STILL_IMAGE_TRIGGER_NORMAL_OPERATION (0x00U)
Video device still image trigger control.
Enumerations
• enum usb_device_video_event_t {
kUSB_DeviceVideoEventStreamSendResponse = 0x01U,
kUSB_DeviceVideoEventStreamRecvResponse,
kUSB_DeviceVideoEventControlSendResponse,
kUSB_DeviceVideoEventClassRequestBuffer }
Available common event types in video class callback.
Functions
•usb_status_t USB_DeviceVideoInit (uint8_t controllerId, usb_device_class_config_struct_-
t∗config, class_handle_t ∗handle)
Initializes the video class.
•usb_status_t USB_DeviceVideoDeinit (class_handle_t handle)
Deinitializes the device video class.
•usb_status_t USB_DeviceVideoEvent (void ∗handle, uint32_t event, void ∗param)
Handles the event passed to the video class.
Freescale Semiconductor
USB Stack Device Reference Manual
129
USB VIDEO Class driver
USB Video class codes
• #define USB_DEVICE_VIDEO_CC_VIDEO (0x0EU)
Video device class code.
• #define USB_DEVICE_VIDEO_SC_UNDEFINED (0x00U)
Video device subclass code.
• #define USB_DEVICE_VIDEO_SC_VIDEOCONTROL (0x01U)
• #define USB_DEVICE_VIDEO_SC_VIDEOSTREAMING (0x02U)
• #define USB_DEVICE_VIDEO_SC_VIDEO_INTERFACE_COLLECTION (0x03U)
• #define USB_DEVICE_VIDEO_PC_PROTOCOL_UNDEFINED (0x00U)
Video device protocol code.
• #define USB_DEVICE_VIDEO_PC_PROTOCOL_15 (0x01U)
• #define USB_DESCRIPTOR_TYPE_VIDEO_CS_UNDEFINED (0x20U)
Video device class-specific descriptor type.
• #define USB_DESCRIPTOR_TYPE_VIDEO_CS_DEVICE (0x21U)
• #define USB_DESCRIPTOR_TYPE_VIDEO_CS_CONFIGURATION (0x22U)
• #define USB_DESCRIPTOR_TYPE_VIDEO_CS_STRING (0x23U)
• #define USB_DESCRIPTOR_TYPE_VIDEO_CS_INTERFACE (0x24U)
• #define USB_DESCRIPTOR_TYPE_VIDEO_CS_ENDPOINT (0x25U)
• #define USB_DESCRIPTOR_SUBTYPE_VIDEO_VC_DESCRIPTOR_UNDEFINED (0x00U)
Video device class-specific VC interface descriptor subtype.
• #define USB_DESCRIPTOR_SUBTYPE_VIDEO_VC_HEADER (0x01U)
• #define USB_DESCRIPTOR_SUBTYPE_VIDEO_VC_INPUT_TERMINAL (0x02U)
• #define USB_DESCRIPTOR_SUBTYPE_VIDEO_VC_OUTPUT_TERMINAL (0x03U)
• #define USB_DESCRIPTOR_SUBTYPE_VIDEO_VC_SELECTOR_UNIT (0x04U)
• #define USB_DESCRIPTOR_SUBTYPE_VIDEO_VC_PROCESSING_UNIT (0x05U)
• #define USB_DESCRIPTOR_SUBTYPE_VIDEO_VC_EXTENSION_UNIT (0x06U)
• #define USB_DESCRIPTOR_SUBTYPE_VIDEO_VC_ENCODING_UNIT (0x07U)
• #define USB_DESCRIPTOR_SUBTYPE_VIDEO_VS_UNDEFINED (0x00U)
Video device class-specific VS interface descriptor subtype.
• #define USB_DESCRIPTOR_SUBTYPE_VIDEO_VS_INPUT_HEADER (0x01U)
• #define USB_DESCRIPTOR_SUBTYPE_VIDEO_VS_OUTPUT_HEADER (0x02U)
• #define USB_DESCRIPTOR_SUBTYPE_VIDEO_VS_STILL_IMAGE_FRAME (0x03U)
• #define USB_DESCRIPTOR_SUBTYPE_VIDEO_VS_FORMAT_UNCOMPRESSED (0x04-
U)
• #define USB_DESCRIPTOR_SUBTYPE_VIDEO_VS_FRAME_UNCOMPRESSED (0x05U)
• #define USB_DESCRIPTOR_SUBTYPE_VIDEO_VS_FORMAT_MJPEG (0x06U)
• #define USB_DESCRIPTOR_SUBTYPE_VIDEO_VS_FRAME_MJPEG (0x07U)
• #define USB_DESCRIPTOR_SUBTYPE_VIDEO_VS_FORMAT_MPEG2TS (0x0AU)
• #define USB_DESCRIPTOR_SUBTYPE_VIDEO_VS_FORMAT_DV (0x0CU)
• #define USB_DESCRIPTOR_SUBTYPE_VIDEO_VS_COLORFORMAT (0x0DU)
• #define USB_DESCRIPTOR_SUBTYPE_VIDEO_VS_FORMAT_FRAME_BASED (0x10U)
• #define USB_DESCRIPTOR_SUBTYPE_VIDEO_VS_FRAME_FRAME_BASED (0x11U)
• #define USB_DESCRIPTOR_SUBTYPE_VIDEO_VS_FORMAT_STREAM_BASED (0x12-
U)
• #define USB_DESCRIPTOR_SUBTYPE_VIDEO_VS_FORMAT_H264 (0x13U)
• #define USB_DESCRIPTOR_SUBTYPE_VIDEO_VS_FRAME_H264 (0x14U)
• #define USB_DESCRIPTOR_SUBTYPE_VIDEO_VS_FORMAT_H264_SIMULCAST (0x15-
U)
• #define USB_DESCRIPTOR_SUBTYPE_VIDEO_VS_FORMAT_VP8 (0x16U)
• #define USB_DESCRIPTOR_SUBTYPE_VIDEO_VS_FRAME_VP8 (0x17U)
• #define USB_DESCRIPTOR_SUBTYPE_VIDEO_VS_FORMAT_VP8_SIMULCAST (0x18-
U)
• #define USB_DESCRIPTOR_SUBTYPE_VIDEO_EP_UNDEFINED (0x00U)
130
USB Stack Device Reference Manual
Freescale Semiconductor
USB VIDEO Class driver
Video device class-specific VC endpoint descriptor subtype.
• #define USB_DESCRIPTOR_SUBTYPE_VIDEO_EP_GENERAL (0x01U)
• #define USB_DESCRIPTOR_SUBTYPE_VIDEO_EP_ENDPOINT (0x02U)
• #define USB_DESCRIPTOR_SUBTYPE_VIDEO_EP_INTERRUPT (0x03U)
• #define USB_DEVICE_VIDEO_REQUEST_CODE_UNDEFINED (0x00U)
Video device class-specific request code.
• #define USB_DEVICE_VIDEO_REQUEST_CODE_SET_CUR (0x01U)
• #define USB_DEVICE_VIDEO_REQUEST_CODE_SET_CUR_ALL (0x11U)
• #define USB_DEVICE_VIDEO_REQUEST_CODE_GET_CUR (0x81U)
• #define USB_DEVICE_VIDEO_REQUEST_CODE_GET_MIN (0x82U)
• #define USB_DEVICE_VIDEO_REQUEST_CODE_GET_MAX (0x83U)
• #define USB_DEVICE_VIDEO_REQUEST_CODE_GET_RES (0x84U)
• #define USB_DEVICE_VIDEO_REQUEST_CODE_GET_LEN (0x85U)
• #define USB_DEVICE_VIDEO_REQUEST_CODE_GET_INFO (0x86U)
• #define USB_DEVICE_VIDEO_REQUEST_CODE_GET_DEF (0x87U)
• #define USB_DEVICE_VIDEO_REQUEST_CODE_GET_CUR_ALL (0x91U)
• #define USB_DEVICE_VIDEO_REQUEST_CODE_GET_MIN_ALL (0x92U)
• #define USB_DEVICE_VIDEO_REQUEST_CODE_GET_MAX_ALL (0x93U)
• #define USB_DEVICE_VIDEO_REQUEST_CODE_GET_RES_ALL (0x94U)
• #define USB_DEVICE_VIDEO_REQUEST_CODE_GET_DEF_ALL (0x97U)
• #define USB_DEVICE_VIDEO_VC_CONTROL_UNDEFINED (0x00U)
Video device class-specific VideoControl interface control selector.
• #define USB_DEVICE_VIDEO_VC_VIDEO_POWER_MODE_CONTROL (0x01U)
• #define USB_DEVICE_VIDEO_VC_REQUEST_ERROR_CODE_CONTROL (0x02U)
• #define USB_DEVICE_VIDEO_TE_CONTROL_UNDEFINED (0x00U)
Video device class-specific Terminal control selector.
• #define USB_DEVICE_VIDEO_SU_CONTROL_UNDEFINED (0x00U)
Video device class-specific Selector Unit control selector.
• #define USB_DEVICE_VIDEO_SU_INPUT_SELECT_CONTROL (0x01U)
• #define USB_DEVICE_VIDEO_CT_CONTROL_UNDEFINED (0x00U)
Video device class-specific Camera Terminal control selector.
• #define USB_DEVICE_VIDEO_CT_SCANNING_MODE_CONTROL (0x01U)
• #define USB_DEVICE_VIDEO_CT_AE_MODE_CONTROL (0x02U)
• #define USB_DEVICE_VIDEO_CT_AE_PRIORITY_CONTROL (0x03U)
• #define USB_DEVICE_VIDEO_CT_EXPOSURE_TIME_ABSOLUTE_CONTROL (0x04U)
• #define USB_DEVICE_VIDEO_CT_EXPOSURE_TIME_RELATIVE_CONTROL (0x05U)
• #define USB_DEVICE_VIDEO_CT_FOCUS_ABSOLUTE_CONTROL (0x06U)
• #define USB_DEVICE_VIDEO_CT_FOCUS_RELATIVE_CONTROL (0x07U)
• #define USB_DEVICE_VIDEO_CT_FOCUS_AUTO_CONTROL (0x08U)
• #define USB_DEVICE_VIDEO_CT_IRIS_ABSOLUTE_CONTROL (0x09U)
• #define USB_DEVICE_VIDEO_CT_IRIS_RELATIVE_CONTROL (0x0AU)
• #define USB_DEVICE_VIDEO_CT_ZOOM_ABSOLUTE_CONTROL (0x0BU)
• #define USB_DEVICE_VIDEO_CT_ZOOM_RELATIVE_CONTROL (0x0CU)
• #define USB_DEVICE_VIDEO_CT_PANTILT_ABSOLUTE_CONTROL (0x0DU)
• #define USB_DEVICE_VIDEO_CT_PANTILT_RELATIVE_CONTROL (0x0EU)
• #define USB_DEVICE_VIDEO_CT_ROLL_ABSOLUTE_CONTROL (0x0FU)
• #define USB_DEVICE_VIDEO_CT_ROLL_RELATIVE_CONTROL (0x10U)
• #define USB_DEVICE_VIDEO_CT_PRIVACY_CONTROL (0x11U)
• #define USB_DEVICE_VIDEO_CT_FOCUS_SIMPLE_CONTROL (0x12U)
• #define USB_DEVICE_VIDEO_CT_WINDOW_CONTROL (0x13U)
• #define USB_DEVICE_VIDEO_CT_REGION_OF_INTEREST_CONTROL (0x14U)
• #define USB_DEVICE_VIDEO_PU_CONTROL_UNDEFINED (0x00U)
Video device class-specific Processing Unit control selector.
• #define USB_DEVICE_VIDEO_PU_BACKLIGHT_COMPENSATION_CONTROL (0x01U)
• #define USB_DEVICE_VIDEO_PU_BRIGHTNESS_CONTROL (0x02U)
Freescale Semiconductor
USB Stack Device Reference Manual
131
USB VIDEO Class driver
• #define USB_DEVICE_VIDEO_PU_CONTRAST_CONTROL (0x03U)
• #define USB_DEVICE_VIDEO_PU_GAIN_CONTROL (0x04U)
• #define USB_DEVICE_VIDEO_PU_POWER_LINE_FREQUENCY_CONTROL (0x05U)
• #define USB_DEVICE_VIDEO_PU_HUE_CONTROL (0x06U)
• #define USB_DEVICE_VIDEO_PU_SATURATION_CONTROL (0x07U)
• #define USB_DEVICE_VIDEO_PU_SHARPNESS_CONTROL (0x08U)
• #define USB_DEVICE_VIDEO_PU_GAMMA_CONTROL (0x09U)
• #define USB_DEVICE_VIDEO_PU_WHITE_BALANCE_TEMPERATURE_CONTRO-
L(0x0AU)
• #define USB_DEVICE_VIDEO_PU_WHITE_BALANCE_TEMPERATURE_AUTO_CON-
TROL (0x0BU)
• #define USB_DEVICE_VIDEO_PU_WHITE_BALANCE_COMPONENT_CONTROL (0x0-
CU)
• #define USB_DEVICE_VIDEO_PU_WHITE_BALANCE_COMPONENT_AUTO_CONTR-
OL (0x0DU)
• #define USB_DEVICE_VIDEO_PU_DIGITAL_MULTIPLIER_CONTROL (0x0EU)
• #define USB_DEVICE_VIDEO_PU_DIGITAL_MULTIPLIER_LIMIT_CONTROL (0x0FU)
• #define USB_DEVICE_VIDEO_PU_HUE_AUTO_CONTROL (0x10U)
• #define USB_DEVICE_VIDEO_PU_ANALOG_VIDEO_STANDARD_CONTROL (0x11U)
• #define USB_DEVICE_VIDEO_PU_ANALOG_LOCK_STATUS_CONTROL (0x12U)
• #define USB_DEVICE_VIDEO_PU_CONTRAST_AUTO_CONTROL (0x13U)
• #define USB_DEVICE_VIDEO_EU_CONTROL_UNDEFINED (0x00U)
Video device class-specific Encoding Unit control selector.
• #define USB_DEVICE_VIDEO_EU_SELECT_LAYER_CONTROL (0x01U)
• #define USB_DEVICE_VIDEO_EU_PROFILE_TOOLSET_CONTROL (0x02U)
• #define USB_DEVICE_VIDEO_EU_VIDEO_RESOLUTION_CONTROL (0x03U)
• #define USB_DEVICE_VIDEO_EU_MIN_FRAME_INTERVAL_CONTROL (0x04U)
• #define USB_DEVICE_VIDEO_EU_SLICE_MODE_CONTROL (0x05U)
• #define USB_DEVICE_VIDEO_EU_RATE_CONTROL_MODE_CONTROL (0x06U)
• #define USB_DEVICE_VIDEO_EU_AVERAGE_BITRATE_CONTROL (0x07U)
• #define USB_DEVICE_VIDEO_EU_CPB_SIZE_CONTROL (0x08U)
• #define USB_DEVICE_VIDEO_EU_PEAK_BIT_RATE_CONTROL (0x09U)
• #define USB_DEVICE_VIDEO_EU_QUANTIZATION_PARAMS_CONTROL (0x0AU)
• #define USB_DEVICE_VIDEO_EU_SYNC_REF_FRAME_CONTROL (0x0BU)
• #define USB_DEVICE_VIDEO_EU_LTR_BUFFER_ CONTROL(0x0CU)
• #define USB_DEVICE_VIDEO_EU_LTR_PICTURE_CONTROL (0x0DU)
• #define USB_DEVICE_VIDEO_EU_LTR_VALIDATION_CONTROL (0x0EU)
• #define USB_DEVICE_VIDEO_EU_LEVEL_IDC_LIMIT_CONTROL (0x0FU)
• #define USB_DEVICE_VIDEO_EU_SEI_PAYLOADTYPE_CONTROL (0x10U)
• #define USB_DEVICE_VIDEO_EU_QP_RANGE_CONTROL (0x11U)
• #define USB_DEVICE_VIDEO_EU_PRIORITY_CONTROL (0x12U)
• #define USB_DEVICE_VIDEO_EU_START_OR_STOP_LAYER_CONTROL (0x13U)
• #define USB_DEVICE_VIDEO_EU_ERROR_RESILIENCY_CONTROL (0x14U)
• #define USB_DEVICE_VIDEO_XU_CONTROL_UNDEFINED (0x00U)
Video device class-specific Extension Unit control selector.
• #define USB_DEVICE_VIDEO_VS_CONTROL_UNDEFINED (0x00U)
Video device class-specific VideoStreaming Interface control selector.
• #define USB_DEVICE_VIDEO_VS_PROBE_CONTROL (0x01U)
• #define USB_DEVICE_VIDEO_VS_COMMIT_CONTROL (0x02U)
• #define USB_DEVICE_VIDEO_VS_STILL_PROBE_CONTROL (0x03U)
• #define USB_DEVICE_VIDEO_VS_STILL_COMMIT_CONTROL (0x04U)
• #define USB_DEVICE_VIDEO_VS_STILL_IMAGE_TRIGGER_CONTROL (0x05U)
• #define USB_DEVICE_VIDEO_VS_STREAM_ERROR_CODE_CONTROL (0x06U)
• #define USB_DEVICE_VIDEO_VS_GENERATE_KEY_FRAME_CONTROL (0x07U)
132
USB Stack Device Reference Manual
Freescale Semiconductor
USB VIDEO Class driver
• #define USB_DEVICE_VIDEO_VS_UPDATE_FRAME_SEGMENT_CONTROL (0x08U)
• #define USB_DEVICE_VIDEO_VS_SYNCH_DELAY_CONTROL (0x09U)
USB Video class terminal types
• #define USB_DEVICE_VIDEO_TT_VENDOR_SPECIFIC (0x0100U)
Video device USB terminal type.
• #define USB_DEVICE_VIDEO_TT_STREAMING (0x0101U)
• #define USB_DEVICE_VIDEO_ITT_VENDOR_SPECIFIC (0x0200U)
Video device input terminal type.
• #define USB_DEVICE_VIDEO_ITT_CAMERA (0x0201U)
• #define USB_DEVICE_VIDEO_ITT_MEDIA_TRANSPORT_INPUT (0x0202U)
• #define USB_DEVICE_VIDEO_OTT_VENDOR_SPECIFIC (0x0300U)
Video device output terminal type.
• #define USB_DEVICE_VIDEO_OTT_DISPLAY (0x0301U)
• #define USB_DEVICE_VIDEO_OTT_MEDIA_TRANSPORT_OUTPUT (0x0302U)
• #define USB_DEVICE_VIDEO_ET_VENDOR_SPECIFIC (0x0400U)
Video device external terminal type.
• #define USB_DEVICE_VIDEO_ET_COMPOSITE_CONNECTOR (0x0401U)
• #define USB_DEVICE_VIDEO_ET_SVIDEO_CONNECTOR (0x0402U)
• #define USB_DEVICE_VIDEO_ET_COMPONENT_CONNECTOR (0x0403U)
USB Video class setup request types
• #define USB_DEVICE_VIDEO_SET_REQUSET_INTERFACE (0x21U)
Video device class setup request set type.
• #define USB_DEVICE_VIDEO_SET_REQUSET_ENDPOINT (0x22U)
• #define USB_DEVICE_VIDEO_GET_REQUSET_INTERFACE (0xA1U)
Video device class setup request get type.
• #define USB_DEVICE_VIDEO_GET_REQUSET_ENDPOINT (0xA2U)
USB Video device class-specific request commands
• #define USB_DEVICE_VIDEO_GET_CUR_VC_POWER_MODE_CONTROL (0x8101U)
Video device class-specific request GET CUR COMMAND.
• #define USB_DEVICE_VIDEO_GET_CUR_VC_ERROR_CODE_CONTROL (0x8102U)
• #define USB_DEVICE_VIDEO_GET_CUR_PU_BACKLIGHT_COMPENSATION_CONT-
ROL (0x8121U)
• #define USB_DEVICE_VIDEO_GET_CUR_PU_BRIGHTNESS_CONTROL (0x8122U)
• #define USB_DEVICE_VIDEO_GET_CUR_PU_CONTRACT_CONTROL (0x8123U)
• #define USB_DEVICE_VIDEO_GET_CUR_PU_GAIN_CONTROL (0x8124U)
• #define USB_DEVICE_VIDEO_GET_CUR_PU_POWER_LINE_FREQUENCY_CONTRO-
L(0x8125U)
• #define USB_DEVICE_VIDEO_GET_CUR_PU_HUE_CONTROL (0x8126U)
• #define USB_DEVICE_VIDEO_GET_CUR_PU_SATURATION_CONTROL (0x8127U)
• #define USB_DEVICE_VIDEO_GET_CUR_PU_SHARRNESS_CONTROL (0x8128U)
• #define USB_DEVICE_VIDEO_GET_CUR_PU_GAMMA_CONTROL (0x8129U)
• #define USB_DEVICE_VIDEO_GET_CUR_PU_WHITE_BALANCE_TEMPERATURE_C-
ONTROL (0x812AU)
Freescale Semiconductor
USB Stack Device Reference Manual
133
USB VIDEO Class driver
• #define USB_DEVICE_VIDEO_GET_CUR_PU_WHITE_BALANCE_TEMPERATURE_A-
UTO_CONTROL (0x812BU)
• #define USB_DEVICE_VIDEO_GET_CUR_PU_WHITE_BALANCE_COMPONENT_CO-
NTROL (0x812CU)
• #define USB_DEVICE_VIDEO_GET_CUR_PU_WHITE_BALANCE_COMPONENT_AU-
TO_CONTROL (0x812DU)
• #define USB_DEVICE_VIDEO_GET_CUR_PU_DIGITAL_MULTIPLIER_CONTRO-
L(0x812EU)
• #define USB_DEVICE_VIDEO_GET_CUR_PU_DIGITAL_MULTIPLIER_LIMIT_CONT-
ROL (0x812FU)
• #define USB_DEVICE_VIDEO_GET_CUR_PU_HUE_AUTO_CONTROL (0x8130U)
• #define USB_DEVICE_VIDEO_GET_CUR_PU_ANALOG_VIDEO_STANDARD_CONTR-
OL (0x8131U)
• #define USB_DEVICE_VIDEO_GET_CUR_PU_ANALOG_LOCK_STATUS_CONTRO-
L(0x8132U)
• #define USB_DEVICE_VIDEO_GET_CUR_CT_SCANNING_MODE_CONTROL (0x8141-
U)
• #define USB_DEVICE_VIDEO_GET_CUR_CT_AE_MODE_CONTROL (0x8142U)
• #define USB_DEVICE_VIDEO_GET_CUR_CT_AE_PRIORITY_CONTROL (0x8143U)
• #define USB_DEVICE_VIDEO_GET_CUR_CT_EXPOSURE_TIME_ABSOLUTE_CONT-
ROL (0x8144U)
• #define USB_DEVICE_VIDEO_GET_CUR_CT_EXPOSURE_TIME_RELATIVE_CONTR-
OL (0x8145U)
• #define USB_DEVICE_VIDEO_GET_CUR_CT_FOCUS_ABSOLUTE_CONTROL (0x8146-
U)
• #define USB_DEVICE_VIDEO_GET_CUR_CT_FOCUS_RELATIVE_CONTROL (0x8147-
U)
• #define USB_DEVICE_VIDEO_GET_CUR_CT_FOCUS_AUTO_CONTROL (0x8148U)
• #define USB_DEVICE_VIDEO_GET_CUR_CT_IRIS_ABSOLUTE_CONTROL (0x8149U)
• #define USB_DEVICE_VIDEO_GET_CUR_CT_IRIS_RELATIVE_CONTROL (0x814AU)
• #define USB_DEVICE_VIDEO_GET_CUR_CT_ZOOM_ABSOLUTE_CONTROL (0x814B-
U)
• #define USB_DEVICE_VIDEO_GET_CUR_CT_ZOOM_RELATIVE_CONTROL (0x814C-
U)
• #define USB_DEVICE_VIDEO_GET_CUR_CT_PANTILT_ABSOLUTE_CONTROL (0x814-
DU)
• #define USB_DEVICE_VIDEO_GET_CUR_CT_PANTILT_RELATIVE_CONTROL (0x814-
EU)
• #define USB_DEVICE_VIDEO_GET_CUR_CT_ROLL_ABSOLUTE_CONTROL (0x814F-
U)
• #define USB_DEVICE_VIDEO_GET_CUR_CT_ROLL_RELATIVE_CONTROL (0x8150U)
• #define USB_DEVICE_VIDEO_GET_CUR_CT_PRIVACY_CONTROL (0x8151U)
• #define USB_DEVICE_VIDEO_GET_CUR_VS_PROBE_CONTROL (0x8161U)
• #define USB_DEVICE_VIDEO_GET_CUR_VS_COMMIT_CONTROL (0x8162U)
• #define USB_DEVICE_VIDEO_GET_CUR_VS_STILL_PROBE_CONTROL (0x8163U)
• #define USB_DEVICE_VIDEO_GET_CUR_VS_STILL_COMMIT_CONTROL (0x8164U)
• #define USB_DEVICE_VIDEO_GET_CUR_VS_STILL_IMAGE_TRIGGER_CONTRO-
L(0x8165U)
• #define USB_DEVICE_VIDEO_GET_CUR_VS_STREAM_ERROR_CODE_CONTRO-
L(0x8166U)
• #define USB_DEVICE_VIDEO_GET_CUR_VS_GENERATE_KEY_FRAME_CONTRO-
134
USB Stack Device Reference Manual
Freescale Semiconductor
USB VIDEO Class driver
L(0x8167U)
• #define USB_DEVICE_VIDEO_GET_CUR_VS_UPDATE_FRAME_SEGMENT_CONTR-
OL (0x8168U)
• #define USB_DEVICE_VIDEO_GET_CUR_VS_SYNCH_DELAY_CONTROL (0x8169U)
• #define USB_DEVICE_VIDEO_GET_MIN_PU_BACKLIGHT_COMPENSATION_CONTRO-
L(0x8221U)
Video device class-specific request GET MIN COMMAND.
• #define USB_DEVICE_VIDEO_GET_MIN_PU_BRIGHTNESS_CONTROL (0x8222U)
• #define USB_DEVICE_VIDEO_GET_MIN_PU_CONTRACT_CONTROL (0x8223U)
• #define USB_DEVICE_VIDEO_GET_MIN_PU_GAIN_CONTROL (0x8224U)
• #define USB_DEVICE_VIDEO_GET_MIN_PU_HUE_CONTROL (0x8226U)
• #define USB_DEVICE_VIDEO_GET_MIN_PU_SATURATION_CONTROL (0x8227U)
• #define USB_DEVICE_VIDEO_GET_MIN_PU_SHARRNESS_CONTROL (0x8228U)
• #define USB_DEVICE_VIDEO_GET_MIN_PU_GAMMA_CONTROL (0x8229U)
• #define USB_DEVICE_VIDEO_GET_MIN_PU_WHITE_BALANCE_TEMPERATURE_C-
ONTROL (0x822AU)
• #define USB_DEVICE_VIDEO_GET_MIN_PU_WHITE_BALANCE_COMPONENT_CO-
NTROL (0x822CU)
• #define USB_DEVICE_VIDEO_GET_MIN_PU_DIGITAL_MULTIPLIER_CONTRO-
L(0x822EU)
• #define USB_DEVICE_VIDEO_GET_MIN_PU_DIGITAL_MULTIPLIER_LIMIT_CONT-
ROL (0x822FU)
• #define USB_DEVICE_VIDEO_GET_MIN_CT_EXPOSURE_TIME_ABSOLUTE_CONT-
ROL (0x8244U)
• #define USB_DEVICE_VIDEO_GET_MIN_CT_FOCUS_ABSOLUTE_CONTROL (0x8246-
U)
• #define USB_DEVICE_VIDEO_GET_MIN_CT_FOCUS_RELATIVE_CONTROL (0x8247-
U)
• #define USB_DEVICE_VIDEO_GET_MIN_CT_IRIS_ABSOLUTE_CONTROL (0x8249U)
• #define USB_DEVICE_VIDEO_GET_MIN_CT_ZOOM_ABSOLUTE_CONTROL (0x824B-
U)
• #define USB_DEVICE_VIDEO_GET_MIN_CT_ZOOM_RELATIVE_CONTROL (0x824C-
U)
• #define USB_DEVICE_VIDEO_GET_MIN_CT_PANTILT_ABSOLUTE_CONTROL (0x824-
DU)
• #define USB_DEVICE_VIDEO_GET_MIN_CT_PANTILT_RELATIVE_CONTROL (0x824-
EU)
• #define USB_DEVICE_VIDEO_GET_MIN_CT_ROLL_ABSOLUTE_CONTROL (0x824F-
U)
• #define USB_DEVICE_VIDEO_GET_MIN_CT_ROLL_RELATIVE_CONTROL (0x8250U)
• #define USB_DEVICE_VIDEO_GET_MIN_VS_PROBE_CONTROL (0x8261U)
• #define USB_DEVICE_VIDEO_GET_MIN_VS_STILL_PROBE_CONTROL (0x8263U)
• #define USB_DEVICE_VIDEO_GET_MIN_VS_UPDATE_FRAME_SEGMENT_CONTRO-
L(0x8268U)
• #define USB_DEVICE_VIDEO_GET_MIN_VS_SYNCH_DELAY_CONTROL (0x8269U)
• #define USB_DEVICE_VIDEO_GET_MAX_PU_BACKLIGHT_COMPENSATION_CONTRO-
L(0x8321U)
Video device class-specific request GET MAX COMMAND.
• #define USB_DEVICE_VIDEO_GET_MAX_PU_BRIGHTNESS_CONTROL (0x8322U)
• #define USB_DEVICE_VIDEO_GET_MAX_PU_CONTRACT_CONTROL (0x8323U)
• #define USB_DEVICE_VIDEO_GET_MAX_PU_GAIN_CONTROL (0x8324U)
Freescale Semiconductor
USB Stack Device Reference Manual
135
USB VIDEO Class driver
• #define USB_DEVICE_VIDEO_GET_MAX_PU_HUE_CONTROL (0x8326U)
• #define USB_DEVICE_VIDEO_GET_MAX_PU_SATURATION_CONTROL (0x8327U)
• #define USB_DEVICE_VIDEO_GET_MAX_PU_SHARRNESS_CONTROL (0x8328U)
• #define USB_DEVICE_VIDEO_GET_MAX_PU_GAMMA_CONTROL (0x8329U)
• #define USB_DEVICE_VIDEO_GET_MAX_PU_WHITE_BALANCE_TEMPERATURE_-
CONTROL (0x832AU)
• #define USB_DEVICE_VIDEO_GET_MAX_PU_WHITE_BALANCE_COMPONENT_CO-
NTROL (0x832CU)
• #define USB_DEVICE_VIDEO_GET_MAX_PU_DIGITAL_MULTIPLIER_CONTRO-
L(0x832EU)
• #define USB_DEVICE_VIDEO_GET_MAX_PU_DIGITAL_MULTIPLIER_LIMIT_CONT-
ROL (0x832FU)
• #define USB_DEVICE_VIDEO_GET_MAX_CT_EXPOSURE_TIME_ABSOLUTE_CONT-
ROL (0x8344U)
• #define USB_DEVICE_VIDEO_GET_MAX_CT_FOCUS_ABSOLUTE_CONTROL (0x8346-
U)
• #define USB_DEVICE_VIDEO_GET_MAX_CT_FOCUS_RELATIVE_CONTROL (0x8347-
U)
• #define USB_DEVICE_VIDEO_GET_MAX_CT_IRIS_ABSOLUTE_CONTROL (0x8349U)
• #define USB_DEVICE_VIDEO_GET_MAX_CT_ZOOM_ABSOLUTE_CONTROL (0x834-
BU)
• #define USB_DEVICE_VIDEO_GET_MAX_CT_ZOOM_RELATIVE_CONTROL (0x834C-
U)
• #define USB_DEVICE_VIDEO_GET_MAX_CT_PANTILT_ABSOLUTE_CONTROL (0x834-
DU)
• #define USB_DEVICE_VIDEO_GET_MAX_CT_PANTILT_RELATIVE_CONTROL (0x834-
EU)
• #define USB_DEVICE_VIDEO_GET_MAX_CT_ROLL_ABSOLUTE_CONTROL (0x834F-
U)
• #define USB_DEVICE_VIDEO_GET_MAX_CT_ROLL_RELATIVE_CONTROL (0x8350-
U)
• #define USB_DEVICE_VIDEO_GET_MAX_VS_PROBE_CONTROL (0x8361U)
• #define USB_DEVICE_VIDEO_GET_MAX_VS_STILL_PROBE_CONTROL (0x8363U)
• #define USB_DEVICE_VIDEO_GET_MAX_VS_UPDATE_FRAME_SEGMENT_CONTR-
OL (0x8368U)
• #define USB_DEVICE_VIDEO_GET_MAX_VS_SYNCH_DELAY_CONTROL (0x8369U)
• #define USB_DEVICE_VIDEO_GET_RES_PU_BACKLIGHT_COMPENSATION_CONTRO-
L(0x8421U)
Video device class-specific request GET RES COMMAND.
• #define USB_DEVICE_VIDEO_GET_RES_PU_BRIGHTNESS_CONTROL (0x8422U)
• #define USB_DEVICE_VIDEO_GET_RES_PU_CONTRACT_CONTROL (0x8423U)
• #define USB_DEVICE_VIDEO_GET_RES_PU_GAIN_CONTROL (0x8424U)
• #define USB_DEVICE_VIDEO_GET_RES_PU_HUE_CONTROL (0x8426U)
• #define USB_DEVICE_VIDEO_GET_RES_PU_SATURATION_CONTROL (0x8427U)
• #define USB_DEVICE_VIDEO_GET_RES_PU_SHARRNESS_CONTROL (0x8428U)
• #define USB_DEVICE_VIDEO_GET_RES_PU_GAMMA_CONTROL (0x8429U)
• #define USB_DEVICE_VIDEO_GET_RES_PU_WHITE_BALANCE_TEMPERATURE_C-
ONTROL (0x842AU)
• #define USB_DEVICE_VIDEO_GET_RES_PU_WHITE_BALANCE_COMPONENT_CON-
TROL (0x842CU)
• #define USB_DEVICE_VIDEO_GET_RES_PU_DIGITAL_MULTIPLIER_CONTRO-
136
USB Stack Device Reference Manual
Freescale Semiconductor
USB VIDEO Class driver
L(0x842EU)
• #define USB_DEVICE_VIDEO_GET_RES_PU_DIGITAL_MULTIPLIER_LIMIT_CONT-
ROL (0x842FU)
• #define USB_DEVICE_VIDEO_GET_RES_CT_AE_MODE_CONTROL (0x8442U)
• #define USB_DEVICE_VIDEO_GET_RES_CT_EXPOSURE_TIME_ABSOLUTE_CONTR-
OL (0x8444U)
• #define USB_DEVICE_VIDEO_GET_RES_CT_FOCUS_ABSOLUTE_CONTROL (0x8446-
U)
• #define USB_DEVICE_VIDEO_GET_RES_CT_FOCUS_RELATIVE_CONTROL (0x8447-
U)
• #define USB_DEVICE_VIDEO_GET_RES_CT_IRIS_ABSOLUTE_CONTROL (0x8449U)
• #define USB_DEVICE_VIDEO_GET_RES_CT_ZOOM_ABSOLUTE_CONTROL (0x844B-
U)
• #define USB_DEVICE_VIDEO_GET_RES_CT_ZOOM_RELATIVE_CONTROL (0x844C-
U)
• #define USB_DEVICE_VIDEO_GET_RES_CT_PANTILT_ABSOLUTE_CONTROL (0x844-
DU)
• #define USB_DEVICE_VIDEO_GET_RES_CT_PANTILT_RELATIVE_CONTROL (0x844-
EU)
• #define USB_DEVICE_VIDEO_GET_RES_CT_ROLL_ABSOLUTE_CONTROL (0x844FU)
• #define USB_DEVICE_VIDEO_GET_RES_CT_ROLL_RELATIVE_CONTROL (0x8450U)
• #define USB_DEVICE_VIDEO_GET_RES_VS_PROBE_CONTROL (0x8461U)
• #define USB_DEVICE_VIDEO_GET_RES_VS_STILL_PROBE_CONTROL (0x8463U)
• #define USB_DEVICE_VIDEO_GET_RES_VS_UPDATE_FRAME_SEGMENT_CONTRO-
L(0x8468U)
• #define USB_DEVICE_VIDEO_GET_RES_VS_SYNCH_DELAY_CONTROL (0x8469U)
• #define USB_DEVICE_VIDEO_GET_LEN_VS_PROBE_CONTROL (0x8561U)
Video device class-specific request GET LEN COMMAND.
• #define USB_DEVICE_VIDEO_GET_LEN_VS_COMMIT_CONTROL (0x8562U)
• #define USB_DEVICE_VIDEO_GET_LEN_VS_STILL_PROBE_CONTROL (0x8563U)
• #define USB_DEVICE_VIDEO_GET_LEN_VS_STILL_COMMIT_CONTROL (0x8564U)
• #define USB_DEVICE_VIDEO_GET_INFO_VC_POWER_MODE_CONTROL (0x8601U)
Video device class-specific request GET INFO COMMAND.
• #define USB_DEVICE_VIDEO_GET_INFO_VC_ERROR_CODE_CONTROL (0x8602U)
• #define USB_DEVICE_VIDEO_GET_INFO_PU_BACKLIGHT_COMPENSATION_CON-
TROL (0x8621U)
• #define USB_DEVICE_VIDEO_GET_INFO_PU_BRIGHTNESS_CONTROL (0x8622U)
• #define USB_DEVICE_VIDEO_GET_INFO_PU_CONTRACT_CONTROL (0x8623U)
• #define USB_DEVICE_VIDEO_GET_INFO_PU_GAIN_CONTROL (0x8624U)
• #define USB_DEVICE_VIDEO_GET_INFO_PU_POWER_LINE_FREQUENCY_CONTR-
OL (0x8625U)
• #define USB_DEVICE_VIDEO_GET_INFO_PU_HUE_CONTROL (0x8626U)
• #define USB_DEVICE_VIDEO_GET_INFO_PU_SATURATION_CONTROL (0x8627U)
• #define USB_DEVICE_VIDEO_GET_INFO_PU_SHARRNESS_CONTROL (0x8628U)
• #define USB_DEVICE_VIDEO_GET_INFO_PU_GAMMA_CONTROL (0x8629U)
• #define USB_DEVICE_VIDEO_GET_INFO_PU_WHITE_BALANCE_TEMPERATURE_-
CONTROL (0x862AU)
• #define USB_DEVICE_VIDEO_GET_INFO_PU_WHITE_BALANCE_TEMPERATURE_-
AUTO_CONTROL (0x862BU)
• #define USB_DEVICE_VIDEO_GET_INFO_PU_WHITE_BALANCE_COMPONENT_CO-
NTROL (0x862CU)
• #define USB_DEVICE_VIDEO_GET_INFO_PU_WHITE_BALANCE_COMPONENT_AU-
Freescale Semiconductor
USB Stack Device Reference Manual
137
USB VIDEO Class driver
TO_CONTROL (0x862DU)
• #define USB_DEVICE_VIDEO_GET_INFO_PU_DIGITAL_MULTIPLIER_CONTRO-
L(0x862EU)
• #define USB_DEVICE_VIDEO_GET_INFO_PU_DIGITAL_MULTIPLIER_LIMIT_CON-
TROL (0x862FU)
• #define USB_DEVICE_VIDEO_GET_INFO_PU_HUE_AUTO_CONTROL (0x8630U)
• #define USB_DEVICE_VIDEO_GET_INFO_PU_ANALOG_VIDEO_STANDARD_CONT-
ROL (0x8631U)
• #define USB_DEVICE_VIDEO_GET_INFO_PU_ANALOG_LOCK_STATUS_CONTRO-
L(0x8632U)
• #define USB_DEVICE_VIDEO_GET_INFO_CT_SCANNING_MODE_CONTROL (0x8641-
U)
• #define USB_DEVICE_VIDEO_GET_INFO_CT_AE_MODE_CONTROL (0x8642U)
• #define USB_DEVICE_VIDEO_GET_INFO_CT_AE_PRIORITY_CONTROL (0x8643U)
• #define USB_DEVICE_VIDEO_GET_INFO_CT_EXPOSURE_TIME_ABSOLUTE_CONT-
ROL (0x8644U)
• #define USB_DEVICE_VIDEO_GET_INFO_CT_EXPOSURE_TIME_RELATIVE_CONT-
ROL (0x8645U)
• #define USB_DEVICE_VIDEO_GET_INFO_CT_FOCUS_ABSOLUTE_CONTROL (0x8646-
U)
• #define USB_DEVICE_VIDEO_GET_INFO_CT_FOCUS_RELATIVE_CONTROL (0x8647-
U)
• #define USB_DEVICE_VIDEO_GET_INFO_CT_FOCUS_AUTO_CONTROL (0x8648U)
• #define USB_DEVICE_VIDEO_GET_INFO_CT_IRIS_ABSOLUTE_CONTROL (0x8649U)
• #define USB_DEVICE_VIDEO_GET_INFO_CT_IRIS_RELATIVE_CONTROL (0x864AU)
• #define USB_DEVICE_VIDEO_GET_INFO_CT_ZOOM_ABSOLUTE_CONTROL (0x864-
BU)
• #define USB_DEVICE_VIDEO_GET_INFO_CT_ZOOM_RELATIVE_CONTROL (0x864-
CU)
• #define USB_DEVICE_VIDEO_GET_INFO_CT_PANTILT_ABSOLUTE_CONTROL (0x864-
DU)
• #define USB_DEVICE_VIDEO_GET_INFO_CT_PANTILT_RELATIVE_CONTROL (0x864-
EU)
• #define USB_DEVICE_VIDEO_GET_INFO_CT_ROLL_ABSOLUTE_CONTROL (0x864F-
U)
• #define USB_DEVICE_VIDEO_GET_INFO_CT_ROLL_RELATIVE_CONTROL (0x8650-
U)
• #define USB_DEVICE_VIDEO_GET_INFO_CT_PRIVACY_CONTROL (0x8651U)
• #define USB_DEVICE_VIDEO_GET_INFO_VS_PROBE_CONTROL (0x8661U)
• #define USB_DEVICE_VIDEO_GET_INFO_VS_COMMIT_CONTROL (0x8662U)
• #define USB_DEVICE_VIDEO_GET_INFO_VS_STILL_PROBE_CONTROL (0x8663U)
• #define USB_DEVICE_VIDEO_GET_INFO_VS_STILL_COMMIT_CONTROL (0x8664U)
• #define USB_DEVICE_VIDEO_GET_INFO_VS_STILL_IMAGE_TRIGGER_CONTRO-
L(0x8665U)
• #define USB_DEVICE_VIDEO_GET_INFO_VS_STREAM_ERROR_CODE_CONTRO-
L(0x8666U)
• #define USB_DEVICE_VIDEO_GET_INFO_VS_GENERATE_KEY_FRAME_CONTRO-
L(0x8667U)
• #define USB_DEVICE_VIDEO_GET_INFO_VS_UPDATE_FRAME_SEGMENT_CONTR-
OL (0x8668U)
• #define USB_DEVICE_VIDEO_GET_INFO_VS_SYNCH_DELAY_CONTROL (0x8669U)
138
USB Stack Device Reference Manual
Freescale Semiconductor
USB VIDEO Class driver
• #define USB_DEVICE_VIDEO_GET_DEF_PU_BACKLIGHT_COMPENSATION_CONTRO-
L(0x8721U)
Video device class-specific request GET DEF COMMAND.
• #define USB_DEVICE_VIDEO_GET_DEF_PU_BRIGHTNESS_CONTROL (0x8722U)
• #define USB_DEVICE_VIDEO_GET_DEF_PU_CONTRACT_CONTROL (0x8723U)
• #define USB_DEVICE_VIDEO_GET_DEF_PU_GAIN_CONTROL (0x8724U)
• #define USB_DEVICE_VIDEO_GET_DEF_PU_POWER_LINE_FREQUENCY_CONTRO-
L(0x8725U)
• #define USB_DEVICE_VIDEO_GET_DEF_PU_HUE_CONTROL (0x8726U)
• #define USB_DEVICE_VIDEO_GET_DEF_PU_SATURATION_CONTROL (0x8727U)
• #define USB_DEVICE_VIDEO_GET_DEF_PU_SHARRNESS_CONTROL (0x8728U)
• #define USB_DEVICE_VIDEO_GET_DEF_PU_GAMMA_CONTROL (0x8729U)
• #define USB_DEVICE_VIDEO_GET_DEF_PU_WHITE_BALANCE_TEMPERATURE_C-
ONTROL (0x872AU)
• #define USB_DEVICE_VIDEO_GET_DEF_PU_WHITE_BALANCE_TEMPERATURE_A-
UTO_CONTROL (0x872BU)
• #define USB_DEVICE_VIDEO_GET_DEF_PU_WHITE_BALANCE_COMPONENT_CO-
NTROL (0x872CU)
• #define USB_DEVICE_VIDEO_GET_DEF_PU_WHITE_BALANCE_COMPONENT_AUT-
O_CONTROL (0x872DU)
• #define USB_DEVICE_VIDEO_GET_DEF_PU_DIGITAL_MULTIPLIER_CONTRO-
L(0x872EU)
• #define USB_DEVICE_VIDEO_GET_DEF_PU_DIGITAL_MULTIPLIER_LIMIT_CONT-
ROL (0x872FU)
• #define USB_DEVICE_VIDEO_GET_DEF_PU_HUE_AUTO_CONTROL (0x8730U)
• #define USB_DEVICE_VIDEO_GET_DEF_CT_AE_MODE_CONTROL (0x8742U)
• #define USB_DEVICE_VIDEO_GET_DEF_CT_EXPOSURE_TIME_ABSOLUTE_CONT-
ROL (0x8744U)
• #define USB_DEVICE_VIDEO_GET_DEF_CT_FOCUS_ABSOLUTE_CONTROL (0x8746-
U)
• #define USB_DEVICE_VIDEO_GET_DEF_CT_FOCUS_RELATIVE_CONTROL (0x8747-
U)
• #define USB_DEVICE_VIDEO_GET_DEF_CT_FOCUS_AUTO_CONTROL (0x8748U)
• #define USB_DEVICE_VIDEO_GET_DEF_CT_IRIS_ABSOLUTE_CONTROL (0x8749U)
• #define USB_DEVICE_VIDEO_GET_DEF_CT_ZOOM_ABSOLUTE_CONTROL (0x874B-
U)
• #define USB_DEVICE_VIDEO_GET_DEF_CT_ZOOM_RELATIVE_CONTROL (0x874C-
U)
• #define USB_DEVICE_VIDEO_GET_DEF_CT_PANTILT_ABSOLUTE_CONTROL (0x874-
DU)
• #define USB_DEVICE_VIDEO_GET_DEF_CT_PANTILT_RELATIVE_CONTROL (0x874-
EU)
• #define USB_DEVICE_VIDEO_GET_DEF_CT_ROLL_ABSOLUTE_CONTROL (0x874F-
U)
• #define USB_DEVICE_VIDEO_GET_DEF_CT_ROLL_RELATIVE_CONTROL (0x8750U)
• #define USB_DEVICE_VIDEO_GET_DEF_VS_PROBE_CONTROL (0x8761U)
• #define USB_DEVICE_VIDEO_GET_DEF_VS_STILL_PROBE_CONTROL (0x8763U)
• #define USB_DEVICE_VIDEO_GET_DEF_VS_UPDATE_FRAME_SEGMENT_CONTRO-
L(0x8768U)
• #define USB_DEVICE_VIDEO_GET_DEF_VS_SYNCH_DELAY_CONTROL (0x8769U)
• #define USB_DEVICE_VIDEO_SET_CUR_VC_POWER_MODE_CONTROL (0x0101U)
Freescale Semiconductor
USB Stack Device Reference Manual
139
USB VIDEO Class driver
Video device class-specific request SET CUR COMMAND.
• #define USB_DEVICE_VIDEO_SET_CUR_PU_BACKLIGHT_COMPENSATION_CONT-
ROL (0x0121U)
• #define USB_DEVICE_VIDEO_SET_CUR_PU_BRIGHTNESS_CONTROL (0x0122U)
• #define USB_DEVICE_VIDEO_SET_CUR_PU_CONTRACT_CONTROL (0x0123U)
• #define USB_DEVICE_VIDEO_SET_CUR_PU_GAIN_CONTROL (0x0124U)
• #define USB_DEVICE_VIDEO_SET_CUR_PU_POWER_LINE_FREQUENCY_CONTRO-
L(0x0125U)
• #define USB_DEVICE_VIDEO_SET_CUR_PU_HUE_CONTROL (0x0126U)
• #define USB_DEVICE_VIDEO_SET_CUR_PU_SATURATION_CONTROL (0x0127U)
• #define USB_DEVICE_VIDEO_SET_CUR_PU_SHARRNESS_CONTROL (0x0128U)
• #define USB_DEVICE_VIDEO_SET_CUR_PU_GAMMA_CONTROL (0x0129U)
• #define USB_DEVICE_VIDEO_SET_CUR_PU_WHITE_BALANCE_TEMPERATURE_C-
ONTROL (0x012AU)
• #define USB_DEVICE_VIDEO_SET_CUR_PU_WHITE_BALANCE_TEMPERATURE_A-
UTO_CONTROL (0x012BU)
• #define USB_DEVICE_VIDEO_SET_CUR_PU_WHITE_BALANCE_COMPONENT_CON-
TROL (0x012CU)
• #define USB_DEVICE_VIDEO_SET_CUR_PU_WHITE_BALANCE_COMPONENT_AUT-
O_CONTROL (0x012DU)
• #define USB_DEVICE_VIDEO_SET_CUR_PU_DIGITAL_MULTIPLIER_CONTRO-
L(0x012EU)
• #define USB_DEVICE_VIDEO_SET_CUR_PU_DIGITAL_MULTIPLIER_LIMIT_CONT-
ROL (0x012FU)
• #define USB_DEVICE_VIDEO_SET_CUR_PU_HUE_AUTO_CONTROL (0x0130U)
• #define USB_DEVICE_VIDEO_SET_CUR_CT_SCANNING_MODE_CONTROL (0x0141-
U)
• #define USB_DEVICE_VIDEO_SET_CUR_CT_AE_MODE_CONTROL (0x0142U)
• #define USB_DEVICE_VIDEO_SET_CUR_CT_AE_PRIORITY_CONTROL (0x0143U)
• #define USB_DEVICE_VIDEO_SET_CUR_CT_EXPOSURE_TIME_ABSOLUTE_CONTR-
OL (0x0144U)
• #define USB_DEVICE_VIDEO_SET_CUR_CT_EXPOSURE_TIME_RELATIVE_CONTR-
OL (0x0145U)
• #define USB_DEVICE_VIDEO_SET_CUR_CT_FOCUS_ABSOLUTE_CONTROL (0x0146-
U)
• #define USB_DEVICE_VIDEO_SET_CUR_CT_FOCUS_RELATIVE_CONTROL (0x0147-
U)
• #define USB_DEVICE_VIDEO_SET_CUR_CT_FOCUS_AUTO_CONTROL (0x0148U)
• #define USB_DEVICE_VIDEO_SET_CUR_CT_IRIS_ABSOLUTE_CONTROL (0x0149U)
• #define USB_DEVICE_VIDEO_SET_CUR_CT_IRIS_RELATIVE_CONTROL (0x014AU)
• #define USB_DEVICE_VIDEO_SET_CUR_CT_ZOOM_ABSOLUTE_CONTROL (0x014B-
U)
• #define USB_DEVICE_VIDEO_SET_CUR_CT_ZOOM_RELATIVE_CONTROL (0x014C-
U)
• #define USB_DEVICE_VIDEO_SET_CUR_CT_PANTILT_ABSOLUTE_CONTROL (0x014-
DU)
• #define USB_DEVICE_VIDEO_SET_CUR_CT_PANTILT_RELATIVE_CONTROL (0x014-
EU)
• #define USB_DEVICE_VIDEO_SET_CUR_CT_ROLL_ABSOLUTE_CONTROL (0x014FU)
• #define USB_DEVICE_VIDEO_SET_CUR_CT_ROLL_RELATIVE_CONTROL (0x0150U)
• #define USB_DEVICE_VIDEO_SET_CUR_CT_PRIVACY_CONTROL (0x0151U)
• #define USB_DEVICE_VIDEO_SET_CUR_VS_PROBE_CONTROL (0x0161U)
140
USB Stack Device Reference Manual
Freescale Semiconductor
USB VIDEO Class driver
• #define USB_DEVICE_VIDEO_SET_CUR_VS_COMMIT_CONTROL (0x0162U)
• #define USB_DEVICE_VIDEO_SET_CUR_VS_STILL_PROBE_CONTROL (0x0163U)
• #define USB_DEVICE_VIDEO_SET_CUR_VS_STILL_COMMIT_CONTROL (0x0164U)
• #define USB_DEVICE_VIDEO_SET_CUR_VS_STILL_IMAGE_TRIGGER_CONTRO-
L(0x0165U)
• #define USB_DEVICE_VIDEO_SET_CUR_VS_STREAM_ERROR_CODE_CONTRO-
L(0x0166U)
• #define USB_DEVICE_VIDEO_SET_CUR_VS_GENERATE_KEY_FRAME_CONTRO-
L(0x0167U)
• #define USB_DEVICE_VIDEO_SET_CUR_VS_UPDATE_FRAME_SEGMENT_CONTRO-
L(0x0168U)
• #define USB_DEVICE_VIDEO_SET_CUR_VS_SYNCH_DELAY_CONTROL (0x0169U)
USB device video class APIs
•usb_status_t USB_DeviceVideoSend (class_handle_t handle, uint8_t ep, uint8_t ∗buffer, uint32_t
length)
Sends data through a specified endpoint.
•usb_status_t USB_DeviceVideoRecv (class_handle_t handle, uint8_t ep, uint8_t ∗buffer, uint32_t
length)
Receives data through a specified endpoint.
3.11.2 Data Structure Documentation
3.11.2.1 struct _usb_device_video_mjpeg_payload_header_struct
Data Fields
• uint8_t bHeaderLength
The payload header length.
• uint32_t dwPresentationTime
Presentation time stamp (PTS) field.
• uint8_t bSourceClockReference [6]
Source clock reference (SCR) field.
• uint8_t bmheaderInfo
The payload header bitmap field.
• uint8_t frameIdentifier: 1U
Frame Identifier.
• uint8_t endOfFrame: 1U
End of Frame.
• uint8_t presentationTimeStamp: 1U
Presentation Time Stamp.
• uint8_t sourceClockReference: 1U
Source Clock Reference.
• uint8_t reserved: 1U
Reserved.
• uint8_t stillImage: 1U
Still Image.
Freescale Semiconductor
USB Stack Device Reference Manual
141
USB VIDEO Class driver
• uint8_t errorBit: 1U
Error Bit.
• uint8_t endOfHeader: 1U
End of Header.
• uint8_t FID: 1U
Frame Identifier.
• uint8_t EOI: 1U
End of Frame.
• uint8_t PTS: 1U
Presentation Time Stamp.
• uint8_t SCR: 1U
Source Clock Reference.
• uint8_t RES: 1U
Reserved.
• uint8_t STI: 1U
Still Image.
• uint8_t ERR: 1U
Error Bit.
• uint8_t EOH: 1U
End of Header.
3.11.2.1.0.24 Field Documentation
3.11.2.1.0.24.1 uint8_t usb_device_video_mjpeg_payload_header_struct_t::bHeaderLength
3.11.2.1.0.24.2 uint8_t usb_device_video_mjpeg_payload_header_struct_t::bmheaderInfo
3.11.2.1.0.24.3 uint8_t usb_device_video_mjpeg_payload_header_struct_t::frameIdentifier
This bit toggles at each frame start boundary and stays constant for the rest of the frame.
3.11.2.1.0.24.4 uint8_t usb_device_video_mjpeg_payload_header_struct_t::endOfFrame
This bit indicates the end of a video frame and is set in the last video sample that belongs to a frame.
3.11.2.1.0.24.5 uint8_t usb_device_video_mjpeg_payload_header_struct_t::presentationTime-
Stamp
This bit, when set, indicates the presence of a PTS field.
3.11.2.1.0.24.6 uint8_t usb_device_video_mjpeg_payload_header_struct_t::sourceClock-
Reference
This bit, when set, indicates the presence of a SCR field.
3.11.2.1.0.24.7 uint8_t usb_device_video_mjpeg_payload_header_struct_t::reserved
Set to 0.
142
USB Stack Device Reference Manual
Freescale Semiconductor
USB VIDEO Class driver
3.11.2.1.0.24.8 uint8_t usb_device_video_mjpeg_payload_header_struct_t::stillImage
This bit, when set, identifies a video sample that belongs to a still image.
3.11.2.1.0.24.9 uint8_t usb_device_video_mjpeg_payload_header_struct_t::errorBit
This bit, when set, indicates an error in the device streaming.
3.11.2.1.0.24.10 uint8_t usb_device_video_mjpeg_payload_header_struct_t::endOfHeader
This bit, when set, indicates the end of the BFH fields.
3.11.2.1.0.24.11 uint8_t usb_device_video_mjpeg_payload_header_struct_t::FID
This bit toggles at each frame start boundary and stays constant for the rest of the frame.
3.11.2.1.0.24.12 uint8_t usb_device_video_mjpeg_payload_header_struct_t::EOI
This bit indicates the end of a video frame and is set in the last video sample that belongs to a frame.
3.11.2.1.0.24.13 uint8_t usb_device_video_mjpeg_payload_header_struct_t::PTS
This bit, when set, indicates the presence of a PTS field.
3.11.2.1.0.24.14 uint8_t usb_device_video_mjpeg_payload_header_struct_t::SCR
This bit, when set, indicates the presence of a SCR field.
3.11.2.1.0.24.15 uint8_t usb_device_video_mjpeg_payload_header_struct_t::RES
Set to 0.
3.11.2.1.0.24.16 uint8_t usb_device_video_mjpeg_payload_header_struct_t::STI
This bit, when set, identifies a video sample that belongs to a still image.
3.11.2.1.0.24.17 uint8_t usb_device_video_mjpeg_payload_header_struct_t::ERR
This bit, when set, indicates an error in the device streaming.
3.11.2.1.0.24.18 uint8_t usb_device_video_mjpeg_payload_header_struct_t::EOH
This bit, when set, indicates the end of the BFH fields.
Freescale Semiconductor
USB Stack Device Reference Manual
143
USB VIDEO Class driver
3.11.2.1.0.24.19 uint32_t usb_device_video_mjpeg_payload_header_struct_t::dwPresentation-
Time
3.11.2.1.0.24.20 uint8_t usb_device_video_mjpeg_payload_header_struct_t::bSourceClock-
Reference[6]
3.11.2.2 struct _usb_device_video_probe_and_commit_controls_struct
Data Fields
• uint8_t bFormatIndex
Video format index from a format descriptor.
• uint8_t bFrameIndex
Video frame index from a frame descriptor.
• uint32_t dwFrameInterval
Frame interval in 100ns units.
• uint16_t wKeyFrameRate
Key frame rate in key-frame per video-frame units.
• uint16_t wPFrameRate
PFrame rate in PFrame/key frame units.
• uint16_t wCompQuality
Compression quality control in abstract units 0U (lowest) to 10000U (highest).
• uint16_t wCompWindowSize
Window size for average bit rate control.
• uint16_t wDelay
Internal video streaming interface latency in ms from video data capture to presentation on the USB.
• uint32_t dwMaxVideoFrameSize
Maximum video frame or codec-specific segment size in bytes.
• uint32_t dwMaxPayloadTransferSize
Specifies the maximum number of bytes that the device can transmit or receive in a single payload transfer.
• uint32_t dwClockFrequency
The device clock frequency in Hz for the specified format.
• uint8_t bmFramingInfo
Bit-field control supporting the following values: D0 Frame ID, D1 EOF.
• uint8_t bPreferedVersion
The preferred payload format version supported by the host or device for the specified bFormatIndex value.
• uint8_t bMinVersion
The minimum payload format version supported by the device for the specified bFormatIndex value.
• uint8_t bMaxVersion
The maximum payload format version supported by the device for the specified bFormatIndex value.
• uint16_t bmHint
Bit-field control indicating to the function what fields shall be kept fixed.
• uint8_t dwFrameInterval: 1U
dwFrameInterval field.
• uint8_t wKeyFrameRate: 1U
wKeyFrameRate field.
• uint8_t wPFrameRate: 1U
wPFrameRate field.
• uint8_t wCompQuality: 1U
wCompQuality field.
• uint8_t wCompWindowSize: 1U
144
USB Stack Device Reference Manual
Freescale Semiconductor
USB VIDEO Class driver
wCompWindowSize field.
3.11.2.2.0.25 Field Documentation
3.11.2.2.0.25.1 uint16_t usb_device_video_probe_and_commit_controls_struct_t::bmHint
3.11.2.2.0.25.2 uint8_t usb_device_video_probe_and_commit_controls_struct_t::dwFrameInterval
3.11.2.2.0.25.3 uint8_t usb_device_video_probe_and_commit_controls_struct_t::wKeyFrameRate
3.11.2.2.0.25.4 uint8_t usb_device_video_probe_and_commit_controls_struct_t::wPFrameRate
3.11.2.2.0.25.5 uint8_t usb_device_video_probe_and_commit_controls_struct_t::wCompQuality
3.11.2.2.0.25.6 uint8_t usb_device_video_probe_and_commit_controls_struct_t::wCompWindow-
Size
3.11.2.2.0.25.7 uint8_t usb_device_video_probe_and_commit_controls_struct_t::bFormatIndex
3.11.2.2.0.25.8 uint8_t usb_device_video_probe_and_commit_controls_struct_t::bFrameIndex
3.11.2.2.0.25.9 uint32_t usb_device_video_probe_and_commit_controls_struct_t::dwFrame-
Interval
3.11.2.2.0.25.10 uint16_t usb_device_video_probe_and_commit_controls_struct_t::wKeyFrame-
Rate
3.11.2.2.0.25.11 uint16_t usb_device_video_probe_and_commit_controls_struct_t::wPFrameRate
3.11.2.2.0.25.12 uint16_t usb_device_video_probe_and_commit_controls_struct_t::wComp-
Quality
3.11.2.2.0.25.13 uint16_t usb_device_video_probe_and_commit_controls_struct_t::wComp-
WindowSize
3.11.2.2.0.25.14 uint16_t usb_device_video_probe_and_commit_controls_struct_t::wDelay
3.11.2.2.0.25.15 uint32_t usb_device_video_probe_and_commit_controls_struct_t::dwMaxVideo-
FrameSize
3.11.2.2.0.25.16 uint32_t usb_device_video_probe_and_commit_controls_struct_t::dwMax-
PayloadTransferSize
3.11.2.2.0.25.17 uint32_t usb_device_video_probe_and_commit_controls_struct_t::dwClock-
Frequency
This will specify the units used for the time information fields in the Video Payload Headers in the data
stream.
Freescale Semiconductor
USB Stack Device Reference Manual
145
USB VIDEO Class driver
3.11.2.2.0.25.18 uint8_t usb_device_video_probe_and_commit_controls_struct_t::bmFramingInfo
3.11.2.2.0.25.19 uint8_t usb_device_video_probe_and_commit_controls_struct_t::bPrefered-
Version
3.11.2.2.0.25.20 uint8_t usb_device_video_probe_and_commit_controls_struct_t::bMinVersion
3.11.2.2.0.25.21 uint8_t usb_device_video_probe_and_commit_controls_struct_t::bMaxVersion
3.11.2.3 struct _usb_device_video_still_probe_and_commit_controls_struct
Data Fields
• uint8_t bFormatIndex
Video format index from a format descriptor.
• uint8_t bFrameIndex
Video frame index from a frame descriptor.
• uint8_t bCompressionIndex
Compression index from a frame descriptor.
• uint32_t dwMaxVideoFrameSize
Maximum still image size in bytes.
• uint32_t dwMaxPayloadTransferSize
Specifies the maximum number of bytes that the device can transmit or receive in a single payload transfer.
3.11.2.3.0.26 Field Documentation
3.11.2.3.0.26.1 uint8_t usb_device_video_still_probe_and_commit_controls_struct_t::bFormat-
Index
3.11.2.3.0.26.2 uint8_t usb_device_video_still_probe_and_commit_controls_struct_t::bFrame-
Index
3.11.2.3.0.26.3 uint8_t usb_device_video_still_probe_and_commit_controls_struct_t::b-
CompressionIndex
3.11.2.3.0.26.4 uint32_t usb_device_video_still_probe_and_commit_controls_struct_t::dwMax-
VideoFrameSize
3.11.2.3.0.26.5 uint32_t usb_device_video_still_probe_and_commit_controls_struct_t::dwMax-
PayloadTransferSize
3.11.2.4 struct usb_device_video_entity_struct_t
The structure is used to pass the video entity information filled by application. Such as entity id (unit or
terminal ID), entity type (unit or terminal type), and terminal type if the entity is a terminal.
146
USB Stack Device Reference Manual
Freescale Semiconductor
USB VIDEO Class driver
3.11.2.5 struct usb_device_video_entities_struct_t
The structure is used to pass the video entity informations filled by the application. The type of each entity
is the usb_device_video_entity_struct_t. The structure pointer is kept in the usb_device_interface_struct-
_t::classSpecific, such as, if there are three entities(out terminal, camera terminal, and processing unit),
the value of the count field is 3U and the entity field saves the every entity information.
3.11.2.6 struct usb_device_video_struct_t
Data Fields
•usb_device_handle handle
The device handle.
•usb_device_class_config_struct_t ∗configStruct
The configuration of the class.
•usb_device_interface_struct_t ∗controlInterfaceHandle
Current control interface handle.
•usb_device_interface_struct_t ∗streamInterfaceHandle
Current stream interface handle.
• uint8_t configuration
Current configuration.
• uint8_t controlInterfaceNumber
The control interface number of the class.
• uint8_t controlAlternate
Current alternate setting of the control interface.
• uint8_t streamInterfaceNumber
The stream interface number of the class.
• uint8_t streamAlternate
Current alternate setting of the stream interface.
• uint8_t streamInPipeBusy
Stream IN pipe busy flag.
• uint8_t streamOutPipeBusy
Stream OUT pipe busy flag.
3.11.2.6.0.27 Field Documentation
3.11.2.6.0.27.1 usb_device_class_config_struct_t∗usb_device_video_struct_t::configStruct
3.11.3 Enumeration Type Documentation
3.11.3.1 enum usb_device_video_event_t
Enumerator
kUSB_DeviceVideoEventStreamSendResponse Send data completed in stream pipe.
kUSB_DeviceVideoEventStreamRecvResponse Data received in stream pipe.
kUSB_DeviceVideoEventControlSendResponse Send data completed in video control pipe.
kUSB_DeviceVideoEventClassRequestBuffer Get buffer to save the data of the video class-specific
Freescale Semiconductor
USB Stack Device Reference Manual
147
USB VIDEO Class driver
request.
3.11.4 Function Documentation
3.11.4.1 usb_status_t USB_DeviceVideoInit ( uint8_t controllerId, usb-
_device_class_config_struct_t ∗config, class_handle_t ∗handle
)
This function is used to initialize the video class. This function can only be called by the USB_Device-
ClassInit.
Parameters
in controllerId The controller ID of the USB IP. See the enumeration usb_controller_-
index_t.
in config The class configuration information.
in handle An parameter used to return pointer of the video class handle to the
caller.
Returns
A USB error code or kStatus_USB_Success.
3.11.4.2 usb_status_t USB_DeviceVideoDeinit ( class_handle_t handle )
The function deinitializes the device video class. This function can only be called by the USB_Device-
ClassDeinit.
Parameters
in handle The video class handle received from usb_device_class_config_struct_-
t::classHandle.
Returns
A USB error code or kStatus_USB_Success.
3.11.4.3 usb_status_t USB_DeviceVideoEvent ( void ∗handle, uint32_t event, void ∗
param )
This function handles the event passed to the video class. This function can only be called by the USB_-
DeviceClassEvent.
148
USB Stack Device Reference Manual
Freescale Semiconductor
USB VIDEO Class driver
Parameters
in handle The video class handle received from the usb_device_class_config_-
struct_t::classHandle.
in event The event codes. See the enumeration usb_device_class_event_t.
in,out param The parameter type is determined by the event code.
Returns
A USB error code or kStatus_USB_Success.
Return values
kStatus_USB_Success Free device handle successfully.
kStatus_USB_Invalid-
Parameter
The device handle is not found.
kStatus_USB_Invalid-
Request
The request is invalid and the control pipe is stalled by the caller.
3.11.4.4 usb_status_t USB_DeviceVideoSend ( class_handle_t handle, uint8_t ep, uint8_t
∗buffer, uint32_t length )
The function is used to send data through a specified endpoint. The function calls USB_DeviceSend-
Request internally.
Parameters
in handle The video class handle received from usb_device_class_config_struct_-
t::classHandle.
in ep Endpoint index.
in buffer The memory address to hold the data need to be sent.
in length The data length to be sent.
Returns
A USB error code or kStatus_USB_Success.
Freescale Semiconductor
USB Stack Device Reference Manual
149
USB VIDEO Class driver
Note
The return value indicates whether the sending request is successful or not. The transfer done is no-
tified by USB_DeviceVideoStreamIn or USB_DeviceVideoControlIn. Currently, only one transfer
request can be supported for a specific endpoint. If there is a specific requirement to support multiple
transfer requests for a specific endpoint, the application should implement a queue in the application
level. The subsequent transfer can begin only when the previous transfer is done (a notification is
received through the endpoint callback).
3.11.4.5 usb_status_t USB_DeviceVideoRecv ( class_handle_t handle, uint8_t ep, uint8_t
∗buffer, uint32_t length )
The function is used to receive data through a specified endpoint. The function calls the USB_Device-
RecvRequest internally.
Parameters
in handle The video class handle got from usb_device_class_config_struct_t-
::classHandle.
in ep Endpoint index.
in buffer The memory address to save the received data.
in length The data length want to be received.
Returns
A USB error code or kStatus_USB_Success.
Note
The return value indicates whether the receiving request is successful or not. The transfer done is
notified by USB_DeviceVideoStreamOut. Currently, only one transfer request can be supported for a
specific endpoint. If there is a specific requirement to support multiple transfer requests for a specific
endpoint. The application should implement a queue in the application level. The subsequent transfer
can begin only when the previous transfer is done (a notification is received through the endpoint
callback).
150
USB Stack Device Reference Manual
Freescale Semiconductor
Chapter 4
USB Device driver
4.1 Overview
The USB device provides the device APIs to support the class driver and lite/non-lite application. It
includes the USB controller driver only which consist of the common controller driver and xHCI driver.
Modules
•USB Device Configuration
•USB Device Controller driver
•USB Device Spec Chapter 9 driver
Data Structures
• struct usb_device_endpoint_callback_message_struct_t
Endpoint callback message structure. More...
• struct usb_device_endpoint_callback_struct_t
Endpoint callback structure. More...
• struct usb_device_endpoint_init_struct_t
Endpoint initialization structure. More...
• struct usb_device_endpoint_status_struct_t
Endpoint status structure. More...
Macros
• #define USB_CONTROL_ENDPOINT (0U)
Control endpoint index.
• #define USB_CONTROL_MAX_PACKET_SIZE (64U)
Control endpoint maxPacketSize.
• #define USB_SETUP_PACKET_SIZE (8U)
The setup packet size of USB control transfer.
• #define USB_ENDPOINT_NUMBER_MASK (0x0FU)
USB endpoint mask.
• #define USB_UNINITIALIZED_VAL_32 (0xFFFFFFFFU)
Default invalid value or the endpoint callback length of cancelled transfer.
Typedefs
• typedef usb_status_t(∗usb_device_endpoint_callback_t )(usb_device_handle handle, usb_device_-
endpoint_callback_message_struct_t ∗message, void ∗callbackParam)
Endpoint callback function typedef.
• typedef usb_status_t(∗usb_device_callback_t )(usb_device_handle handle, uint32_t callbackEvent,
void ∗eventParam)
Device callback function typedef.
Freescale Semiconductor
USB Stack Device Reference Manual
151
Overview
Enumerations
• enum usb_device_status_t {
kUSB_DeviceStatusTestMode = 1U,
kUSB_DeviceStatusSpeed,
kUSB_DeviceStatusOtg,
kUSB_DeviceStatusDevice,
kUSB_DeviceStatusEndpoint,
kUSB_DeviceStatusDeviceState,
kUSB_DeviceStatusAddress,
kUSB_DeviceStatusSynchFrame,
kUSB_DeviceStatusBus }
Defines Get/Set status Types.
• enum usb_device_state_t {
kUSB_DeviceStateConfigured = 0U,
kUSB_DeviceStateAddress,
kUSB_DeviceStateDefault,
kUSB_DeviceStateAddressing,
kUSB_DeviceStateTestMode }
Defines USB 2.0 device state.
• enum usb_device_endpoint_status_t {
kUSB_DeviceEndpointStateIdle = 0U,
kUSB_DeviceEndpointStateStalled }
Defines endpoint state.
• enum usb_device_event_t {
kUSB_DeviceEventBusReset = 1U,
kUSB_DeviceEventSuspend,
kUSB_DeviceEventResume,
kUSB_DeviceEventError,
kUSB_DeviceEventDetach,
kUSB_DeviceEventAttach,
kUSB_DeviceEventSetConfiguration,
kUSB_DeviceEventSetInterface,
kUSB_DeviceEventGetDeviceDescriptor,
kUSB_DeviceEventGetConfigurationDescriptor,
kUSB_DeviceEventGetStringDescriptor,
kUSB_DeviceEventGetHidDescriptor,
kUSB_DeviceEventGetHidReportDescriptor,
kUSB_DeviceEventGetHidPhysicalDescriptor,
kUSB_DeviceEventVendorRequest,
kUSB_DeviceEventSetRemoteWakeup,
kUSB_DeviceEventGetConfiguration,
kUSB_DeviceEventGetInterface }
Available common EVENT types in device callback.
152
USB Stack Device Reference Manual
Freescale Semiconductor
Data Structure Documentation
USB device APIs
•usb_status_t USB_DeviceInit (uint8_t controllerId, usb_device_callback_t deviceCallback, usb_-
device_handle ∗handle)
Initializes the USB device stack.
•usb_status_t USB_DeviceRun (usb_device_handle handle)
Enables the device functionality.
•usb_status_t USB_DeviceStop (usb_device_handle handle)
Disables the device functionality.
•usb_status_t USB_DeviceDeinit (usb_device_handle handle)
De-initializes the device controller.
•usb_status_t USB_DeviceSendRequest (usb_device_handle handle, uint8_t endpointAddress,
uint8_t ∗buffer, uint32_t length)
Sends data through a specified endpoint.
•usb_status_t USB_DeviceRecvRequest (usb_device_handle handle, uint8_t endpointAddress,
uint8_t ∗buffer, uint32_t length)
Receives data through a specified endpoint.
•usb_status_t USB_DeviceCancel (usb_device_handle handle, uint8_t endpointAddress)
Cancels the pending transfer in a specified endpoint.
•usb_status_t USB_DeviceInitEndpoint (usb_device_handle handle, usb_device_endpoint_init_-
struct_t ∗epInit, usb_device_endpoint_callback_struct_t ∗endpointCallback)
Initializes a specified endpoint.
•usb_status_t USB_DeviceDeinitEndpoint (usb_device_handle handle, uint8_t endpointAddress)
Deinitializes a specified endpoint.
•usb_status_t USB_DeviceStallEndpoint (usb_device_handle handle, uint8_t endpointAddress)
Stalls a specified endpoint.
•usb_status_t USB_DeviceUnstallEndpoint (usb_device_handle handle, uint8_t endpointAddress)
Unstalls a specified endpoint.
•usb_status_t USB_DeviceGetStatus (usb_device_handle handle, usb_device_status_t type, void
∗param)
Gets the status of the selected item.
•usb_status_t USB_DeviceSetStatus (usb_device_handle handle, usb_device_status_t type, void
∗param)
Sets the status of the selected item.
• void USB_DeviceTaskFunction (void ∗deviceHandle)
Device task function.
• void USB_DeviceGetVersion (uint32_t ∗version)
Gets the device stack version function.
4.2 Data Structure Documentation
4.2.1 struct usb_device_endpoint_callback_message_struct_t
Data Fields
• uint8_t ∗buffer
Transferred buffer.
• uint32_t length
Transferred data length.
• uint8_t isSetup
Freescale Semiconductor
USB Stack Device Reference Manual
153
Macro Definition Documentation
Is in a setup phase.
4.2.2 struct usb_device_endpoint_callback_struct_t
Data Fields
•usb_device_endpoint_callback_t callbackFn
Endpoint callback function.
• void ∗callbackParam
Parameter for callback function.
4.2.3 struct usb_device_endpoint_init_struct_t
Data Fields
• uint16_t maxPacketSize
Endpoint maximum packet size.
• uint8_t endpointAddress
Endpoint address.
• uint8_t transferType
Endpoint transfer type.
• uint8_t zlt
ZLT flag.
4.2.4 struct usb_device_endpoint_status_struct_t
Data Fields
• uint8_t endpointAddress
Endpoint address.
• uint16_t endpointStatus
Endpoint status : idle or stalled.
4.3 Macro Definition Documentation
4.3.1 #define USB_SETUP_PACKET_SIZE (8U)
154
USB Stack Device Reference Manual
Freescale Semiconductor
Typedef Documentation
4.4 Typedef Documentation
4.4.1 typedef usb_status_t(∗usb_device_endpoint_callback_t)(usb_device_handle
handle, usb_device_endpoint_callback_message_struct_t ∗message, void
∗callbackParam)
This callback function is used to notify the upper layer what the transfer result is. This callback pointer is
passed when a specified endpoint is initialized by calling API USB_DeviceInitEndpoint.
Freescale Semiconductor
USB Stack Device Reference Manual
155
Enumeration Type Documentation
Parameters
handle The device handle. It equals to the value returned from USB_DeviceInit.
message The result of a transfer, which includes transfer buffer, transfer length, and whether is
in a setup phase. phase for control pipe.
callbackParam The parameter for this callback. It is same with usb_device_endpoint_callback_-
struct_t::callbackParam.
Returns
A USB error code or kStatus_USB_Success.
4.4.2 typedef usb_status_t(∗usb_device_callback_t)(usb_device_handle handle,
uint32_t callbackEvent, void ∗eventParam)
This callback function is used to notify the upper layer that the device status has changed. This callback
pointer is passed by calling API USB_DeviceInit.
Parameters
handle The device handle. It equals the value returned from USB_DeviceInit.
callbackEvent The callback event type. See enumeration usb_device_event_t.
eventParam The event parameter for this callback. The parameter type is determined by the call-
back event.
Returns
A USB error code or kStatus_USB_Success.
4.5 Enumeration Type Documentation
4.5.1 enum usb_device_status_t
Enumerator
kUSB_DeviceStatusTestMode Test mode.
kUSB_DeviceStatusSpeed Current speed.
kUSB_DeviceStatusOtg OTG status.
kUSB_DeviceStatusDevice Device status.
kUSB_DeviceStatusEndpoint Endpoint state usb_device_endpoint_status_t.
kUSB_DeviceStatusDeviceState Device state.
kUSB_DeviceStatusAddress Device address.
kUSB_DeviceStatusSynchFrame Current frame.
kUSB_DeviceStatusBus Bus status.
156
USB Stack Device Reference Manual
Freescale Semiconductor
Enumeration Type Documentation
4.5.2 enum usb_device_state_t
Enumerator
kUSB_DeviceStateConfigured Device state, Configured.
kUSB_DeviceStateAddress Device state, Address.
kUSB_DeviceStateDefault Device state, Default.
kUSB_DeviceStateAddressing Device state, Address setting.
kUSB_DeviceStateTestMode Device state, Test mode.
4.5.3 enum usb_device_endpoint_status_t
Enumerator
kUSB_DeviceEndpointStateIdle Endpoint state, idle.
kUSB_DeviceEndpointStateStalled Endpoint state, stalled.
4.5.4 enum usb_device_event_t
Enumerator
kUSB_DeviceEventBusReset USB bus reset signal detected.
kUSB_DeviceEventSuspend USB bus suspend signal detected.
kUSB_DeviceEventResume USB bus resume signal detected. The resume signal is driven by itself
or a host
kUSB_DeviceEventError An error is happened in the bus.
kUSB_DeviceEventDetach USB device is disconnected from a host.
kUSB_DeviceEventAttach USB device is connected to a host.
kUSB_DeviceEventSetConfiguration Set configuration.
kUSB_DeviceEventSetInterface Set interface.
kUSB_DeviceEventGetDeviceDescriptor Get device descriptor.
kUSB_DeviceEventGetConfigurationDescriptor Get configuration descriptor.
kUSB_DeviceEventGetStringDescriptor Get string descriptor.
kUSB_DeviceEventGetHidDescriptor Get HID descriptor.
kUSB_DeviceEventGetHidReportDescriptor Get HID report descriptor.
kUSB_DeviceEventGetHidPhysicalDescriptor Get HID physical descriptor.
kUSB_DeviceEventVendorRequest Vendor request.
kUSB_DeviceEventSetRemoteWakeup Enable or disable remote wakeup function.
kUSB_DeviceEventGetConfiguration Get current configuration index.
kUSB_DeviceEventGetInterface Get current interface alternate setting value.
Freescale Semiconductor
USB Stack Device Reference Manual
157
Function Documentation
4.6 Function Documentation
4.6.1 usb_status_t USB_DeviceInit ( uint8_t controllerId, usb_device_callback_t
deviceCallback, usb_device_handle ∗handle )
This function initializes the USB device module specified by the controllerId.
158
USB Stack Device Reference Manual
Freescale Semiconductor
Function Documentation
Parameters
in controllerId The controller ID of the USB IP. See the enumeration usb_controller_-
index_t.
in deviceCallback Function pointer of the device callback.
out handle It is an out parameter used to return the pointer of the device handle to
the caller.
Return values
kStatus_USB_Success The device is initialized successfully.
kStatus_USB_Invalid-
Handle
The handle is a NULL pointer.
kStatus_USB_Busy Cannot allocate a device handle.
kStatus_USB_Controller-
NotFound
Cannot find the controller according to the controller id.
kStatus_USB_Invalid-
ControllerInterface
The controller driver interfaces is invalid. There is an empty interface en-
tity.
kStatus_USB_Error The macro USB_DEVICE_CONFIG_ENDPOINTS is more than the IP’s
endpoint number. Or, the device has been initialized. Or, the mutex or
message queue is created failed.
4.6.2 usb_status_t USB_DeviceRun ( usb_device_handle handle )
The function enables the device functionality, so that the device can be recognized by the host when the
device detects that it has been connected to a host.
Parameters
in handle The device handle got from USB_DeviceInit.
Return values
kStatus_USB_Success The device is run successfully.
kStatus_USB_Controller-
NotFound
Cannot find the controller.
Freescale Semiconductor
USB Stack Device Reference Manual
159
Function Documentation
kStatus_USB_Invalid-
Handle
The device handle is a NULL pointer. Or the controller handle is invalid.
4.6.3 usb_status_t USB_DeviceStop ( usb_device_handle handle )
The function disables the device functionality. After this function called, even if the device is detached to
the host, it can’t work.
Parameters
in handle The device handle received from USB_DeviceInit.
Return values
kStatus_USB_Success The device is stopped successfully.
kStatus_USB_Controller-
NotFound
Cannot find the controller.
kStatus_USB_Invalid-
Handle
The device handle is a NULL pointer or the controller handle is invalid.
4.6.4 usb_status_t USB_DeviceDeinit ( usb_device_handle handle )
The function de-initializes the device controller specified by the handle.
Parameters
in handle The device handle got from USB_DeviceInit.
Return values
kStatus_USB_Success The device is stopped successfully.
kStatus_USB_Invalid-
Handle
The device handle is a NULL pointer or the controller handle is invalid.
4.6.5 usb_status_t USB_DeviceSendRequest ( usb_device_handle handle, uint8_t
endpointAddress, uint8_t ∗buffer, uint32_t length )
The function is used to send data through a specified endpoint.
160
USB Stack Device Reference Manual
Freescale Semiconductor
Function Documentation
Parameters
in handle The device handle got from USB_DeviceInit.
in endpoint-
Address
Endpoint index.
in buffer The memory address to hold the data need to be sent.
in length The data length need to be sent.
Return values
kStatus_USB_Success The send request is sent successfully.
kStatus_USB_Invalid-
Handle
The handle is a NULL pointer. Or the controller handle is invalid.
kStatus_USB_Busy Cannot allocate DTDS for current transfer in EHCI driver.
kStatus_USB_Controller-
NotFound
Cannot find the controller.
kStatus_USB_Error The device is doing reset.
Note
The return value indicates whether the sending request is successful or not. The transfer done is no-
tified by the corresponding callback function. Currently, only one transfer request can be supported
for one specific endpoint. If there is a specific requirement to support multiple transfer requests
for one specific endpoint, the application should implement a queue on the application level. The
subsequent transfer can begin only when the previous transfer is done (get notification through the
endpoint callback).
4.6.6 usb_status_t USB_DeviceRecvRequest ( usb_device_handle handle, uint8_t
endpointAddress, uint8_t ∗buffer, uint32_t length )
The function is used to receive data through a specified endpoint.
Parameters
in handle The device handle got from USB_DeviceInit.
Freescale Semiconductor
USB Stack Device Reference Manual
161
Function Documentation
in endpoint-
Address
Endpoint index.
in buffer The memory address to save the received data.
in length The data length want to be received.
Return values
kStatus_USB_Success The receive request is sent successfully.
kStatus_USB_Invalid-
Handle
The handle is a NULL pointer. Or the controller handle is invalid.
kStatus_USB_Busy Cannot allocate DTDS for current transfer in EHCI driver.
kStatus_USB_Controller-
NotFound
Cannot find the controller.
kStatus_USB_Error The device is doing reset.
Note
The return value indicates whether the receiving request is successful or not. The transfer done is no-
tified by the corresponding callback function. Currently, only one transfer request can be supported
for one specific endpoint. If there is a specific requirement to support multiple transfer requests
for one specific endpoint, the application should implement a queue on the application level. The
subsequent transfer can begin only when the previous transfer is done (get notification through the
endpoint callback).
4.6.7 usb_status_t USB_DeviceCancel ( usb_device_handle handle, uint8_t
endpointAddress )
The function is used to cancel the pending transfer in a specified endpoint.
Parameters
in handle The device handle got from USB_DeviceInit.
in endpoint-
Address
Endpoint address, bit7 is the direction of endpoint, 1U - IN, and 0U -
OUT.
162
USB Stack Device Reference Manual
Freescale Semiconductor
Function Documentation
Return values
kStatus_USB_Success The transfer is cancelled.
kStatus_USB_Invalid-
Handle
The handle is a NULL pointer or the controller handle is invalid.
kStatus_USB_Controller-
NotFound
Cannot find the controller.
4.6.8 usb_status_t USB_DeviceInitEndpoint ( usb_device_handle handle,
usb_device_endpoint_init_struct_t ∗epInit, usb_device_endpoint_callback_-
struct_t ∗endpointCallback )
The function is used to initialize a specified endpoint. The corresponding endpoint callback is also initial-
ized.
Parameters
in handle The device handle received from USB_DeviceInit.
in epInit Endpoint initialization structure. See the structure usb_device_-
endpoint_init_struct_t.
in endpoint-
Callback
Endpoint callback structure. See the structure usb_device_endpoint_-
callback_struct_t.
Return values
kStatus_USB_Success The endpoint is initialized successfully.
kStatus_USB_Invalid-
Handle
The handle is a NULL pointer. Or the controller handle is invalid.
kStatus_USB_Invalid-
Parameter
The epInit or endpointCallback is NULL pointer. Or the endpoint number
is more than USB_DEVICE_CONFIG_ENDPOINTS.
kStatus_USB_Busy The endpoint is busy in EHCI driver.
kStatus_USB_Controller-
NotFound
Cannot find the controller.
4.6.9 usb_status_t USB_DeviceDeinitEndpoint ( usb_device_handle handle, uint8_t
endpointAddress )
The function is used to deinitializes a specified endpoint.
Freescale Semiconductor
USB Stack Device Reference Manual
163
Function Documentation
Parameters
in handle The device handle got from USB_DeviceInit.
in endpoint-
Address
Endpoint address, bit7 is the direction of endpoint, 1U - IN, and 0U -
OUT.
Return values
kStatus_USB_Success The endpoint is de-initialized successfully.
kStatus_USB_Invalid-
Handle
The handle is a NULL pointer. Or the controller handle is invalid.
kStatus_USB_Invalid-
Parameter
The endpoint number is more than USB_DEVICE_CONFIG_ENDPOIN-
TS.
kStatus_USB_Busy The endpoint is busy in EHCI driver.
kStatus_USB_Controller-
NotFound
Cannot find the controller.
4.6.10 usb_status_t USB_DeviceStallEndpoint ( usb_device_handle handle, uint8_t
endpointAddress )
The function is used to stall a specified endpoint.
Parameters
in handle The device handle received from USB_DeviceInit.
in endpoint-
Address
Endpoint address, bit7 is the direction of endpoint, 1U - IN, and 0U -
OUT.
Return values
kStatus_USB_Success The endpoint is stalled successfully.
kStatus_USB_Invalid-
Handle
The handle is a NULL pointer. Or the controller handle is invalid.
kStatus_USB_Invalid-
Parameter
The endpoint number is more than USB_DEVICE_CONFIG_ENDPOIN-
TS.
164
USB Stack Device Reference Manual
Freescale Semiconductor
Function Documentation
kStatus_USB_Controller-
NotFound
Cannot find the controller.
4.6.11 usb_status_t USB_DeviceUnstallEndpoint ( usb_device_handle handle,
uint8_t endpointAddress )
The function is used to unstall a specified endpoint.
Parameters
in handle The device handle received from USB_DeviceInit.
in endpoint-
Address
Endpoint address, bit7 is the direction of endpoint, 1U - IN, and 0U -
OUT.
Return values
kStatus_USB_Success The endpoint is unstalled successfully.
kStatus_USB_Invalid-
Handle
The handle is a NULL pointer. Or the controller handle is invalid.
kStatus_USB_Invalid-
Parameter
The endpoint number is more than USB_DEVICE_CONFIG_ENDPOIN-
TS.
kStatus_USB_Controller-
NotFound
Cannot find the controller.
4.6.12 usb_status_t USB_DeviceGetStatus ( usb_device_handle handle,
usb_device_status_t type, void ∗param )
The function is used to get the status of the selected item.
Parameters
in handle The device handle got from USB_DeviceInit.
in type The selected item. Please refer to the structure usb_device_status_t.
out param The parameter type is determined by the selected item.
Freescale Semiconductor
USB Stack Device Reference Manual
165
Function Documentation
Return values
kStatus_USB_Success Get status successfully.
kStatus_USB_Invalid-
Handle
The handle is a NULL pointer. Or the controller handle is invalid.
kStatus_USB_Invalid-
Parameter
The parameter is NULL pointer.
kStatus_USB_Controller-
NotFound
Cannot find the controller.
kStatus_USB_Error Unsupported type.
4.6.13 usb_status_t USB_DeviceSetStatus ( usb_device_handle handle,
usb_device_status_t type, void ∗param )
The function is used to set the status of the selected item.
Parameters
in handle The device handle got from USB_DeviceInit.
in type The selected item. Please refer to the structure usb_device_status_t.
in param The parameter type is determined by the selected item.
Return values
kStatus_USB_Success Set status successfully.
kStatus_USB_Invalid-
Handle
The handle is a NULL pointer. Or the controller handle is invalid.
kStatus_USB_Controller-
NotFound
Cannot find the controller.
kStatus_USB_Error Unsupported type or the parameter is NULL pointer.
4.6.14 void USB_DeviceTaskFunction ( void ∗deviceHandle )
The function is used to handle the controller message. This function should not be called in the application
directly.
166
USB Stack Device Reference Manual
Freescale Semiconductor
Function Documentation
Parameters
in deviceHandle The device handle got from USB_DeviceInit.
4.6.15 void USB_DeviceGetVersion ( uint32_t ∗version )
The function is used to get the device stack version.
Parameters
out version The version structure pointer to keep the device stack version.
Freescale Semiconductor
USB Stack Device Reference Manual
167
USB Device Controller driver
4.7 USB Device Controller driver
4.7.1 Overview
The interface between KHCI/EHCI Driver and Common Controller driver.
Modules
•USB Device Controller EHCI driver
•USB Device Controller KHCI driver
Data Structures
• struct usb_device_callback_message_struct_t
Device notification message structure. More...
• struct usb_device_controller_interface_struct_t
USB device controller interface structure. More...
• struct usb_device_struct_t
USB device status structure. More...
Macros
• #define usb_device_controller_handle usb_device_handle
Macro to define controller handle.
Typedefs
• typedef usb_status_t(∗usb_device_controller_init_t )(uint8_t controllerId, usb_device_handle han-
dle, usb_device_controller_handle ∗controllerHandle)
USB device controller initialization function typedef.
• typedef usb_status_t(∗usb_device_controller_deinit_t )(usb_device_controller_handle controller-
Handle)
USB device controller de-initialization function typedef.
• typedef usb_status_t(∗usb_device_controller_send_t )(usb_device_controller_handle controller-
Handle, uint8_t endpointAddress, uint8_t ∗buffer, uint32_t length)
USB device controller send data function typedef.
• typedef usb_status_t(∗usb_device_controller_recv_t )(usb_device_controller_handle controller-
Handle, uint8_t endpointAddress, uint8_t ∗buffer, uint32_t length)
USB device controller receive data function typedef.
• typedef usb_status_t(∗usb_device_controller_cancel_t )(usb_device_controller_handle controller-
Handle, uint8_t endpointAddress)
USB device controller cancel transfer function in a specified endpoint typedef.
• typedef usb_status_t(∗usb_device_controller_control_t )(usb_device_controller_handle controller-
Handle, usb_device_control_type_t command, void ∗param)
USB device controller control function typedef.
168
USB Stack Device Reference Manual
Freescale Semiconductor
USB Device Controller driver
Enumerations
• enum usb_device_notification_t {
kUSB_DeviceNotifyBusReset = 0x10U,
kUSB_DeviceNotifySuspend,
kUSB_DeviceNotifyResume,
kUSB_DeviceNotifyError,
kUSB_DeviceNotifyDetach,
kUSB_DeviceNotifyAttach }
Available notify types for device notification.
• enum usb_device_control_type_t {
kUSB_DeviceControlRun = 0U,
kUSB_DeviceControlStop,
kUSB_DeviceControlEndpointInit,
kUSB_DeviceControlEndpointDeinit,
kUSB_DeviceControlEndpointStall,
kUSB_DeviceControlEndpointUnstall,
kUSB_DeviceControlGetDeviceStatus,
kUSB_DeviceControlGetEndpointStatus,
kUSB_DeviceControlSetDeviceAddress,
kUSB_DeviceControlGetSynchFrame,
kUSB_DeviceControlResume,
kUSB_DeviceControlSetDefaultStatus,
kUSB_DeviceControlGetSpeed,
kUSB_DeviceControlGetOtgStatus,
kUSB_DeviceControlSetOtgStatus,
kUSB_DeviceControlSetTestMode }
Control type for controller.
4.7.2 Data Structure Documentation
4.7.2.1 struct usb_device_callback_message_struct_t
Data Fields
• uint8_t ∗buffer
Transferred buffer.
• uint32_t length
Transferred data length.
• uint8_t code
Notification code.
• uint8_t isSetup
Is in a setup phase.
Freescale Semiconductor
USB Stack Device Reference Manual
169
USB Device Controller driver
4.7.2.2 struct usb_device_controller_interface_struct_t
Data Fields
•usb_device_controller_init_t deviceInit
Controller initialization.
•usb_device_controller_deinit_t deviceDeinit
Controller de-initialization.
•usb_device_controller_send_t deviceSend
Controller send data.
•usb_device_controller_recv_t deviceRecv
Controller receive data.
•usb_device_controller_cancel_t deviceCancel
Controller cancel transfer.
•usb_device_controller_control_t deviceControl
Controller control.
4.7.2.3 struct usb_device_struct_t
Data Fields
•usb_device_controller_handle controllerHandle
Controller handle.
• const
usb_device_controller_interface_struct_t ∗controllerInterface
Controller interface handle.
•usb_device_callback_t deviceCallback
Device callback function pointer.
•usb_device_endpoint_callback_struct_t endpointCallback [USB_DEVICE_CONFIG_ENDPOIN-
TS<< 1U]
Endpoint callback function structure.
• uint8_t deviceAddress
Current device address.
• uint8_t controllerId
Controller ID.
• uint8_t state
Current device state.
4.7.3 Enumeration Type Documentation
4.7.3.1 enum usb_device_notification_t
Enumerator
kUSB_DeviceNotifyBusReset Reset signal detected.
kUSB_DeviceNotifySuspend Suspend signal detected.
kUSB_DeviceNotifyResume Resume signal detected.
kUSB_DeviceNotifyError Errors happened in bus.
170
USB Stack Device Reference Manual
Freescale Semiconductor
USB Device Controller driver
kUSB_DeviceNotifyDetach Device disconnected from a host.
kUSB_DeviceNotifyAttach Device connected to a host.
4.7.3.2 enum usb_device_control_type_t
Enumerator
kUSB_DeviceControlRun Enable the device functionality.
kUSB_DeviceControlStop Disable the device functionality.
kUSB_DeviceControlEndpointInit Initialize a specified endpoint.
kUSB_DeviceControlEndpointDeinit De-initialize a specified endpoint.
kUSB_DeviceControlEndpointStall Stall a specified endpoint.
kUSB_DeviceControlEndpointUnstall Unstall a specified endpoint.
kUSB_DeviceControlGetDeviceStatus Get device status.
kUSB_DeviceControlGetEndpointStatus Get endpoint status.
kUSB_DeviceControlSetDeviceAddress Set device address.
kUSB_DeviceControlGetSynchFrame Get current frame.
kUSB_DeviceControlResume Drive controller to generate a resume signal in USB bus.
kUSB_DeviceControlSetDefaultStatus Set controller to default status.
kUSB_DeviceControlGetSpeed Get current speed.
kUSB_DeviceControlGetOtgStatus Get OTG status.
kUSB_DeviceControlSetOtgStatus Set OTG status.
kUSB_DeviceControlSetTestMode Drive xCHI into test mode.
Freescale Semiconductor
USB Stack Device Reference Manual
171
USB Device Controller driver
4.7.4 USB Device Controller EHCI driver
4.7.4.1 Overview
Data Structures
• struct usb_device_ehci_state_struct_t
EHCI state structure. More...
Macros
• #define USB_DEVICE_MAX_HS_ISO_MAX_PACKET_SIZE (1024U)
The maximum value of ISO type maximum packet size for HS in USB specification 2.0.
• #define USB_DEVICE_MAX_HS_INTERUPT_MAX_PACKET_SIZE (1024U)
The maximum value of interrupt type maximum packet size for HS in USB specification 2.0.
• #define USB_DEVICE_MAX_HS_BULK_MAX_PACKET_SIZE (512U)
The maximum value of bulk type maximum packet size for HS in USB specification 2.0.
• #define USB_DEVICE_MAX_HS_CONTROL_MAX_PACKET_SIZE (64U)
The maximum value of control type maximum packet size for HS in USB specification 2.0.
USB device EHCI functions
•usb_status_t USB_DeviceEhciInit (uint8_t controllerId, usb_device_handle handle, usb_device_-
controller_handle ∗ehciHandle)
Initializes the USB device EHCI instance.
•usb_status_t USB_DeviceEhciDeinit (usb_device_controller_handle ehciHandle)
Deinitializes the USB device EHCI instance.
•usb_status_t USB_DeviceEhciSend (usb_device_controller_handle ehciHandle, uint8_t endpoint-
Address, uint8_t ∗buffer, uint32_t length)
Sends data through a specified endpoint.
•usb_status_t USB_DeviceEhciRecv (usb_device_controller_handle ehciHandle, uint8_t endpoint-
Address, uint8_t ∗buffer, uint32_t length)
Receive data through a specified endpoint.
•usb_status_t USB_DeviceEhciCancel (usb_device_controller_handle ehciHandle, uint8_t ep)
Cancels the pending transfer in a specified endpoint.
•usb_status_t USB_DeviceEhciControl (usb_device_controller_handle ehciHandle, usb_device_-
control_type_t type, void ∗param)
Controls the status of the selected item.
4.7.4.2 Data Structure Documentation
4.7.4.2.1 struct usb_device_ehci_state_struct_t
Data Fields
•usb_device_struct_t ∗deviceHandle
Device handle used to identify the device object is belonged to.
172
USB Stack Device Reference Manual
Freescale Semiconductor
USB Device Controller driver
• USBHS_Type ∗registerBase
The base address of the register.
• usb_device_ehci_qh_struct_t ∗qh
The QH structure base address.
• usb_device_ehci_dtd_struct_t ∗dtd
The DTD structure base address.
• usb_device_ehci_dtd_struct_t ∗dtdFree
The idle DTD list head.
• usb_device_ehci_dtd_struct_t ∗dtdHard [USB_DEVICE_CONFIG_ENDPOINTS ∗2]
The transferring DTD list head for each endpoint.
• usb_device_ehci_dtd_struct_t ∗dtdTail [USB_DEVICE_CONFIG_ENDPOINTS ∗2]
The transferring DTD list tail for each endpoint.
• int8_t dtdCount
The idle DTD node count.
• uint8_t endpointCount
The endpoint number of EHCI.
• uint8_t isResetting
Whether a PORT reset is occurring or not.
• uint8_t controllerId
Controller ID.
• uint8_t speed
Current speed of EHCI.
• uint8_t isSuspending
Is suspending of the PORT.
4.7.4.3 Function Documentation
4.7.4.3.1 usb_status_t USB_DeviceEhciInit ( uint8_t controllerId, usb_device_handle handle,
usb_device_controller_handle ∗ehciHandle )
This function initializes the USB device EHCI module specified by the controllerId.
Parameters
in controllerId The controller ID of the USB IP. See the enumeration type usb_-
controller_index_t.
in handle Pointer of the device handle used to identify the device object is be-
longed to.
out ehciHandle An out parameter used to return the pointer of the device EHCI handle
to the caller.
Freescale Semiconductor
USB Stack Device Reference Manual
173
USB Device Controller driver
Returns
A USB error code or kStatus_USB_Success.
4.7.4.3.2 usb_status_t USB_DeviceEhciDeinit ( usb_device_controller_handle ehciHandle )
This function deinitializes the USB device EHCI module.
174
USB Stack Device Reference Manual
Freescale Semiconductor
USB Device Controller driver
Parameters
in ehciHandle Pointer of the device EHCI handle.
Returns
A USB error code or kStatus_USB_Success.
4.7.4.3.3 usb_status_t USB_DeviceEhciSend ( usb_device_controller_handle ehciHandle, uint8_t
endpointAddress, uint8_t ∗buffer, uint32_t length )
This function sends data through a specified endpoint.
Parameters
in ehciHandle Pointer of the device EHCI handle.
in endpoint-
Address
Endpoint index.
in buffer The memory address to hold the data need to be sent.
in length The data length to be sent.
Returns
A USB error code or kStatus_USB_Success.
Note
The return value means whether the sending request is successful or not. The transfer completion
is indicated by the corresponding callback function. Currently, only one transfer request can be
supported for a specific endpoint. If there is a specific requirement to support multiple transfer
requests for a specific endpoint, the application should implement a queue in the application level.
The subsequent transfer can begin only when the previous transfer is done (a notification is received
through the endpoint callback).
4.7.4.3.4 usb_status_t USB_DeviceEhciRecv ( usb_device_controller_handle ehciHandle, uint8_t
endpointAddress, uint8_t ∗buffer, uint32_t length )
This function Receives data through a specified endpoint.
Freescale Semiconductor
USB Stack Device Reference Manual
175
USB Device Controller driver
Parameters
in ehciHandle Pointer of the device EHCI handle.
in endpoint-
Address
Endpoint index.
in buffer The memory address to save the received data.
in length The data length want to be received.
Returns
A USB error code or kStatus_USB_Success.
Note
The return value just means if the receiving request is successful or not; the transfer done is notified
by the corresponding callback function. Currently, only one transfer request can be supported for
one specific endpoint. If there is a specific requirement to support multiple transfer requests for one
specific endpoint, the application should implement a queue in the application level. The subsequent
transfer could begin only when the previous transfer is done (get notification through the endpoint
callback).
4.7.4.3.5 usb_status_t USB_DeviceEhciCancel ( usb_device_controller_handle ehciHandle,
uint8_t ep )
The function is used to cancel the pending transfer in a specified endpoint.
Parameters
in ehciHandle Pointer of the device EHCI handle.
in ep Endpoint address, bit7 is the direction of endpoint, 1U - IN, 0U - OUT.
Returns
A USB error code or kStatus_USB_Success.
4.7.4.3.6 usb_status_t USB_DeviceEhciControl ( usb_device_controller_handle ehciHandle,
usb_device_control_type_t type, void ∗param )
The function is used to control the status of the selected item.
176
USB Stack Device Reference Manual
Freescale Semiconductor
USB Device Controller driver
Parameters
in ehciHandle Pointer of the device EHCI handle.
in type The selected item. See enumeration type usb_device_control_type_t.
in,out param The parameter type is determined by the selected item.
Returns
A USB error code or kStatus_USB_Success.
Freescale Semiconductor
USB Stack Device Reference Manual
177
USB Device Controller driver
4.7.5 USB Device Controller KHCI driver
4.7.5.1 Overview
Data Structures
• struct usb_device_khci_endpoint_state_struct_t
Endpoint state structure. More...
• struct usb_device_khci_state_struct_t
KHCI state structure. More...
Macros
• #define USB_DEVICE_MAX_FS_ISO_MAX_PACKET_SIZE (1023U)
The maximum value of ISO maximum packet size for FS in USB specification 2.0.
• #define USB_DEVICE_MAX_FS_NONE_ISO_MAX_PACKET_SIZE (64U)
The maximum value of non-ISO maximum packet size for FS in USB specification 2.0.
• #define USB_KHCI_BDT_SET_ADDRESS(bdt_base, ep, direction, odd, address)
Set BDT buffer address.
• #define USB_KHCI_BDT_SET_CONTROL(bdt_base, ep, direction, odd, control)
Set BDT control fields.
• #define USB_KHCI_BDT_GET_ADDRESS(bdt_base, ep, direction, odd)
Get BDT buffer address.
• #define USB_KHCI_BDT_GET_CONTROL(bdt_base, ep, direction, odd)
Get BDT control fields.
USB device KHCI functions
•usb_status_t USB_DeviceKhciInit (uint8_t controllerId, usb_device_handle handle, usb_device_-
controller_handle ∗khciHandle)
Initializes the USB device KHCI instance.
•usb_status_t USB_DeviceKhciDeinit (usb_device_controller_handle khciHandle)
Deinitializes the USB device KHCI instance.
•usb_status_t USB_DeviceKhciSend (usb_device_controller_handle khciHandle, uint8_t endpoint-
Address, uint8_t ∗buffer, uint32_t length)
Sends data through a specified endpoint.
•usb_status_t USB_DeviceKhciRecv (usb_device_controller_handle khciHandle, uint8_t endpoint-
Address, uint8_t ∗buffer, uint32_t length)
Receives data through a specified endpoint.
•usb_status_t USB_DeviceKhciCancel (usb_device_controller_handle khciHandle, uint8_t ep)
Cancels the pending transfer in a specified endpoint.
•usb_status_t USB_DeviceKhciControl (usb_device_controller_handle khciHandle, usb_device_-
control_type_t type, void ∗param)
Controls the status of the selected item.
178
USB Stack Device Reference Manual
Freescale Semiconductor
USB Device Controller driver
4.7.5.2 Data Structure Documentation
4.7.5.2.1 struct usb_device_khci_endpoint_state_struct_t
Data Fields
• uint8_t ∗transferBuffer
Address of buffer containing the data to be transmitted.
• uint32_t transferLength
Length of data to transmit.
• uint32_t transferDone
The data length has been transferred.
• uint32_t state
The state of the endpoint.
• uint32_t maxPacketSize: 10U
The maximum packet size of the endpoint.
• uint32_t stalled: 1U
The endpoint is stalled or not.
• uint32_t data0: 1U
The data toggle of the transaction.
• uint32_t bdtOdd: 1U
The BDT toggle of the endpoint.
• uint32_t dmaAlign: 1U
Whether the transferBuffer is DMA aligned or not.
• uint32_t transferring: 1U
The endpoint is transferring.
• uint32_t resersed: 1U
Reversed.
4.7.5.2.1.1 Field Documentation
4.7.5.2.1.1.1 uint32_t usb_device_khci_endpoint_state_struct_t::transferLength
4.7.5.2.2 struct usb_device_khci_state_struct_t
Data Fields
•usb_device_struct_t ∗deviceHandle
Device handle used to identify the device object belongs to.
• uint8_t ∗bdt
BDT buffer address.
• USB_Type ∗registerBase
The base address of the register.
• uint8_t setupPacketBuffer [USB_SETUP_PACKET_SIZE ∗2]
The setup request buffer.
• uint8_t ∗dmaAlignBuffer
This buffer is used to fix the transferBuffer or transferLength does not align to 4-bytes when the function
USB_DeviceKhciRecv is called.
•usb_device_khci_endpoint_state_struct_t endpointState [USB_DEVICE_CONFIG_ENDPOINTS
∗2]
Endpoint state structures.
Freescale Semiconductor
USB Stack Device Reference Manual
179
USB Device Controller driver
• uint8_t isDmaAlignBufferInusing
The dmaAlignBuffer is used or not.
• uint8_t isResetting
Is doing device reset or not.
• uint8_t controllerId
Controller ID.
• uint8_t setupBufferIndex
A valid setup buffer flag.
4.7.5.2.2.1 Field Documentation
4.7.5.2.2.1.1 uint8_t∗usb_device_khci_state_struct_t::dmaAlignBuffer
The macro USB_DEVICE_CONFIG_KHCI_DMA_ALIGN is used to enable or disable this feature. If
the feature is enabled, when the transferBuffer or transferLength does not align to 4-bytes, the transfer-
Length is not more than USB_DEVICE_CONFIG_KHCI_DMA_ALIGN_BUFFER_LENGTH, and the
flag isDmaAlignBufferInusing is zero, the dmaAlignBuffer is used to receive data and the flag isDma-
AlignBufferInusing is set to 1. When the transfer is done, the received data, kept in dmaAlignBuffer, is
copied to the transferBuffer, and the flag isDmaAlignBufferInusing is cleared.
4.7.5.3 Function Documentation
4.7.5.3.1 usb_status_t USB_DeviceKhciInit ( uint8_t controllerId, usb_device_handle handle,
usb_device_controller_handle ∗khciHandle )
This function initializes the USB device KHCI module specified by the controllerId.
Parameters
in controllerId The controller ID of the USB IP. See the enumeration type usb_-
controller_index_t.
in handle Pointer of the device handle used to identify the device object belongs
to.
out khciHandle An out parameter used to return the pointer of the device KHCI handle
to the caller.
Returns
A USB error code or kStatus_USB_Success.
4.7.5.3.2 usb_status_t USB_DeviceKhciDeinit ( usb_device_controller_handle khciHandle )
This function deinitializes the USB device KHCI module.
180
USB Stack Device Reference Manual
Freescale Semiconductor
USB Device Controller driver
Parameters
in khciHandle Pointer of the device KHCI handle.
Returns
A USB error code or kStatus_USB_Success.
4.7.5.3.3 usb_status_t USB_DeviceKhciSend ( usb_device_controller_handle khciHandle, uint8_t
endpointAddress, uint8_t ∗buffer, uint32_t length )
This function sends data through a specified endpoint.
Parameters
in khciHandle Pointer of the device KHCI handle.
in endpoint-
Address
Endpoint index.
in buffer The memory address to hold the data need to be sent.
in length The data length need to be sent.
Returns
A USB error code or kStatus_USB_Success.
Note
The return value indicates whether the sending request is successful or not. The transfer completion
is notified by the corresponding callback function. Currently, only one transfer request can be sup-
ported for a specific endpoint. If there is a specific requirement to support multiple transfer requests
for a specific endpoint, the application should implement a queue in the application level. The sub-
sequent transfer can begin only when the previous transfer is done (a notification is obtained through
the endpoint callback).
4.7.5.3.4 usb_status_t USB_DeviceKhciRecv ( usb_device_controller_handle khciHandle, uint8_t
endpointAddress, uint8_t ∗buffer, uint32_t length )
This function receives data through a specified endpoint.
Freescale Semiconductor
USB Stack Device Reference Manual
181
USB Device Controller driver
Parameters
in khciHandle Pointer of the device KHCI handle.
in endpoint-
Address
Endpoint index.
in buffer The memory address to save the received data.
in length The data length to be received.
Returns
A USB error code or kStatus_USB_Success.
Note
The return value indicates whether the receiving request is successful or not. The transfer com-
pletion is notified by the corresponding callback function. Currently, only one transfer request can
be supported for a specific endpoint. If there is a specific requirement to support multiple transfer
requests for a specific endpoint, the application should implement a queue in the application level.
The subsequent transfer can begin only when the previous transfer is done (a notification is obtained
through the endpoint callback).
4.7.5.3.5 usb_status_t USB_DeviceKhciCancel ( usb_device_controller_handle khciHandle,
uint8_t ep )
The function is used to cancel the pending transfer in a specified endpoint.
Parameters
in khciHandle Pointer of the device KHCI handle.
in ep Endpoint address, bit7 is the direction of endpoint, 1U - IN, abd 0U -
OUT.
Returns
A USB error code or kStatus_USB_Success.
4.7.5.3.6 usb_status_t USB_DeviceKhciControl ( usb_device_controller_handle khciHandle,
usb_device_control_type_t type, void ∗param )
The function is used to control the status of the selected item.
182
USB Stack Device Reference Manual
Freescale Semiconductor
USB Device Controller driver
Parameters
in khciHandle Pointer of the device KHCI handle.
in type The selected item. Please refer to enumeration type usb_device_control-
_type_t.
in,out param The parameter type is determined by the selected item.
Returns
A USB error code or kStatus_USB_Success.
Freescale Semiconductor
USB Stack Device Reference Manual
183
USB Device Spec Chapter 9 driver
4.8 USB Device Spec Chapter 9 driver
4.8.1 Overview
Macros
• #define USB_DEVICE_STATUS_SIZE (0x02U)
Defines USB device status size when the host request to get device status.
• #define USB_INTERFACE_STATUS_SIZE (0x02U)
Defines USB device interface status size when the host request to get interface status.
• #define USB_ENDPOINT_STATUS_SIZE (0x02U)
Defines USB device endpoint status size when the host request to get endpoint status.
• #define USB_CONFIGURE_SIZE (0X01U)
Defines USB device configuration size when the host request to get current configuration.
• #define USB_INTERFACE_SIZE (0X01U)
Defines USB device interface alternate setting size when the host request to get interface alternate setting.
• #define USB_GET_STATUS_DEVICE_MASK (0x03U)
Defines USB device status mask.
• #define USB_GET_STATUS_INTERFACE_MASK (0x03U)
Defines USB device interface status mask.
• #define USB_GET_STATUS_ENDPOINT_MASK (0x03U)
Defines USB device endpoint status mask.
Enumerations
• enum usb_device_control_read_write_sequence_t {
kUSB_DeviceControlPipeSetupStage = 0U,
kUSB_DeviceControlPipeDataStage,
kUSB_DeviceControlPipeStatusStage }
Control read and write sequence.
Functions
•usb_status_t USB_DeviceControlPipeInit (usb_device_handle handle, void ∗param)
Initializes the control pipes.
4.8.2 Enumeration Type Documentation
4.8.2.1 enum usb_device_control_read_write_sequence_t
Enumerator
kUSB_DeviceControlPipeSetupStage Setup stage.
kUSB_DeviceControlPipeDataStage Data stage.
kUSB_DeviceControlPipeStatusStage status stage
184
USB Stack Device Reference Manual
Freescale Semiconductor
USB Device Spec Chapter 9 driver
4.8.3 Function Documentation
4.8.3.1 usb_status_t USB_DeviceControlPipeInit ( usb_device_handle handle, void ∗
param )
The function is used to initialize the control pipes. This function should be called when event kUSB_-
DeviceEventBusReset is received.
Freescale Semiconductor
USB Stack Device Reference Manual
185
USB Device Spec Chapter 9 driver
Parameters
in handle The device handle.
in param The event parameter.
Returns
A USB error code or kStatus_USB_Success.
186
USB Stack Device Reference Manual
Freescale Semiconductor
USB Device Configuration
4.9 USB Device Configuration
4.9.1 Overview
Macros
• #define USB_DEVICE_CONFIG_SELF_POWER (1U)
Whether the device is self powered.
• #define USB_DEVICE_CONFIG_REMOTE_WAKEUP (0U)
Whether the device remote is wakeup supported.
• #define USB_DEVICE_CONFIG_ENDPOINTS (4U)
How many endpoints are supported in the stack.
• #define USB_DEVICE_CONFIG_USE_TASK (0U)
Whether the device task is enabled.
• #define USB_DEVICE_CONFIG_MAX_MESSAGES (8U)
How many the notification message are supported when the device task is enabled.
• #define USB_DEVICE_CONFIG_KHCI_DMA_ALIGN_BUFFER_LENGTH (64U)
The MAX buffer length for the KHCI DMA workaround.
• #define USB_DEVICE_CONFIG_KHCI_ERROR_HANDLING (0U)
Whether the USB KHCI bus error is handled.
• #define USB_DEVICE_CONFIG_EHCI_MAX_DTD (16U)
The number of supported DTDs.
• #define USB_DEVICE_CONFIG_EHCI_ERROR_HANDLING (0U)
Whether the USB EHCI bus error is handled.
• #define USB_DEVICE_CONFIG_EHCI_TEST_MODE (0U)
Whether the test mode is enabled.
• #define USB_DEVICE_CONFIG_EHCI_ID_PIN_DETECT (0U)
Whether the EHCI ID pin detect feature is enabled.
• #define USB_DEVICE_CONFIG_KEEP_ALIVE_MODE (0U)
Whether the keep alive feature is enabled.
• #define USB_DEVICE_CONFIG_BUFFER_PROPERTY_CACHEABLE (0U)
Whether the transfer buffer is cache-enabled or not.
• #define USB_DEVICE_CONFIG_LOW_POWER_MODE (0U)
Whether the low power mode is enabled or not.
• #define USB_DEVICE_CONFIG_DETACH_ENABLE (0U)
Whether the device detached feature is enabled or not.
• #define USB_DEVICE_CONFIG_SELF_POWER (1U)
Whether the device is self powered.
• #define USB_DEVICE_CONFIG_REMOTE_WAKEUP (0U)
Whether the device remote wakeup is supported.
• #define USB_DEVICE_CONFIG_ENDPOINTS (4U)
Number of endpoints supported in the stack.
• #define USB_DEVICE_CONFIG_USE_TASK (0U)
Whether the device task is enabled.
• #define USB_DEVICE_CONFIG_MAX_MESSAGES (8U)
Number of notification messages supported when the device task is enabled.
• #define USB_DEVICE_CONFIG_KHCI_DMA_ALIGN_BUFFER_LENGTH (64U)
The maximum buffer length for the KHCI DMA workaround.
• #define USB_DEVICE_CONFIG_KHCI_ERROR_HANDLING (0U)
Whether the USB KHCI bus error is handled.
• #define USB_DEVICE_CONFIG_KEEP_ALIVE_MODE (0U)
Freescale Semiconductor
USB Stack Device Reference Manual
187
USB Device Configuration
Whether the keep alive feature is enabled.
• #define USB_DEVICE_CONFIG_BUFFER_PROPERTY_CACHEABLE (0U)
Whether the transfer buffer is cache-enabled or not.
• #define USB_DEVICE_CONFIG_LOW_POWER_MODE (0U)
Whether the low power mode is enabled or not.
• #define USB_DEVICE_CONFIG_DETACH_ENABLE (0U)
Whether the device detached feature is enabled or not.
Hardware instance define
• #define USB_DEVICE_CONFIG_KHCI (1U)
KHCI instance count.
• #define USB_DEVICE_CONFIG_EHCI (1U)
EHCI instance count.
• #define USB_DEVICE_CONFIG_NUM (USB_DEVICE_CONFIG_KHCI +USB_DEVICE_CO-
NFIG_EHCI)
Device instance count, the sum of KHCI and EHCI instance counts.
class instance define
• #define USB_DEVICE_CONFIG_HID (0U)
HID instance count.
• #define USB_DEVICE_CONFIG_CDC_ACM (0U)
CDC ACM instance count.
• #define USB_DEVICE_CONFIG_MSC (0U)
MSC instance count.
• #define USB_DEVICE_CONFIG_AUDIO (0U)
Audio instance count.
• #define USB_DEVICE_CONFIG_PHDC (0U)
PHDC instance count.
• #define USB_DEVICE_CONFIG_VIDEO (0U)
Video instance count.
• #define USB_DEVICE_CONFIG_CCID (0U)
CCID instance count.
• #define USB_DEVICE_CONFIG_PRINTER (0U)
Printer instance count.
• #define USB_DEVICE_CONFIG_DFU (0U)
DFU instance count.
Hardware instance define
• #define USB_DEVICE_CONFIG_KHCI (1U)
KHCI instance count.
• #define USB_DEVICE_CONFIG_EHCI (0U)
EHCI instance count.
• #define USB_DEVICE_CONFIG_NUM (USB_DEVICE_CONFIG_KHCI +USB_DEVICE_CO-
NFIG_EHCI)
188
USB Stack Device Reference Manual
Freescale Semiconductor
USB Device Configuration
Device instance count, the sum of KHCI and EHCI instance counts.
Class instance define
• #define USB_DEVICE_CONFIG_HID (0U)
HID instance count.
• #define USB_DEVICE_CONFIG_CDC_ACM (0U)
CDC ACM instance count.
• #define USB_DEVICE_CONFIG_MSC (0U)
MSC instance count.
• #define USB_DEVICE_CONFIG_AUDIO (0U)
Audio instance count.
• #define USB_DEVICE_CONFIG_PHDC (0U)
PHDC instance count.
• #define USB_DEVICE_CONFIG_VIDEO (0U)
Video instance count.
• #define USB_DEVICE_CONFIG_CCID (0U)
CCID instance count.
• #define USB_DEVICE_CONFIG_PRINTER (0U)
Printer instance count.
• #define USB_DEVICE_CONFIG_DFU (0U)
DFU instance count.
4.9.2 Macro Definition Documentation
4.9.2.1 #define USB_DEVICE_CONFIG_SELF_POWER (1U)
1U supported, 0U not supported
4.9.2.2 #define USB_DEVICE_CONFIG_REMOTE_WAKEUP (0U)
1U supported, 0U not supported
Freescale Semiconductor
USB Stack Device Reference Manual
189
USB Device Configuration
4.9.2.3 #define USB_DEVICE_CONFIG_ENDPOINTS (4U)
4.9.2.4 #define USB_DEVICE_CONFIG_USE_TASK (0U)
4.9.2.5 #define USB_DEVICE_CONFIG_MAX_MESSAGES (8U)
4.9.2.6 #define USB_DEVICE_CONFIG_KHCI_DMA_ALIGN_BUFFER_LENGTH (64U)
4.9.2.7 #define USB_DEVICE_CONFIG_KHCI_ERROR_HANDLING (0U)
4.9.2.8 #define USB_DEVICE_CONFIG_EHCI_MAX_DTD (16U)
4.9.2.9 #define USB_DEVICE_CONFIG_EHCI_ERROR_HANDLING (0U)
4.9.2.10 #define USB_DEVICE_CONFIG_EHCI_TEST_MODE (0U)
4.9.2.11 #define USB_DEVICE_CONFIG_EHCI_ID_PIN_DETECT (0U)
4.9.2.12 #define USB_DEVICE_CONFIG_KEEP_ALIVE_MODE (0U)
4.9.2.13 #define USB_DEVICE_CONFIG_BUFFER_PROPERTY_CACHEABLE (0U)
4.9.2.14 #define USB_DEVICE_CONFIG_LOW_POWER_MODE (0U)
4.9.2.15 #define USB_DEVICE_CONFIG_DETACH_ENABLE (0U)
4.9.2.16 #define USB_DEVICE_CONFIG_SELF_POWER (1U)
1U supported, 0U not supported
4.9.2.17 #define USB_DEVICE_CONFIG_REMOTE_WAKEUP (0U)
1U supported, 0U not supported
190
USB Stack Device Reference Manual
Freescale Semiconductor
USB Device Configuration
4.9.2.18 #define USB_DEVICE_CONFIG_ENDPOINTS (4U)
4.9.2.19 #define USB_DEVICE_CONFIG_USE_TASK (0U)
4.9.2.20 #define USB_DEVICE_CONFIG_MAX_MESSAGES (8U)
4.9.2.21 #define USB_DEVICE_CONFIG_KHCI_DMA_ALIGN_BUFFER_LENGTH (64U)
4.9.2.22 #define USB_DEVICE_CONFIG_KHCI_ERROR_HANDLING (0U)
4.9.2.23 #define USB_DEVICE_CONFIG_KEEP_ALIVE_MODE (0U)
4.9.2.24 #define USB_DEVICE_CONFIG_BUFFER_PROPERTY_CACHEABLE (0U)
4.9.2.25 #define USB_DEVICE_CONFIG_LOW_POWER_MODE (0U)
4.9.2.26 #define USB_DEVICE_CONFIG_DETACH_ENABLE (0U)
Freescale Semiconductor
USB Stack Device Reference Manual
191
USB Device Configuration
192
USB Stack Device Reference Manual
Freescale Semiconductor
Chapter 5
USB OS Adapter
5.1 Overview
The OS adapter (OSA) is used to wrap the differences between RTOSes and enable a USB stack with the
same code base and behavior.
Note
OSA should not be used in the USB application. Therefore, from the USB application viewpoint,
OSA is invisible.
Macros
• #define BIG_ENDIAN (0U)
Define big endian.
• #define LITTLE_ENDIAN (1U)
Define little endian.
• #define ENDIANNESS LITTLE_ENDIAN
Define current endian.
Typedefs
• typedef void ∗usb_osa_event_handle
Define USB OSA event handle.
• typedef void ∗usb_osa_sem_handle
Define USB OSA semaphore handle.
• typedef void ∗usb_osa_mutex_handle
Define USB OSA mutex handle.
• typedef void ∗usb_osa_msgq_handle
Define USB OSA message queue handle.
Enumerations
• enum usb_osa_status_t {
kStatus_USB_OSA_Success = 0x00U,
kStatus_USB_OSA_Error,
kStatus_USB_OSA_TimeOut }
USB OSA error code.
• enum usb_osa_event_mode_t {
kUSB_OsaEventManualClear = 0U,
kUSB_OsaEventAutoClear = 1U }
The event flags are cleared automatically or manually.
Freescale Semiconductor
USB Stack Device Reference Manual
193
Overview
USB OSA Memory Management
• void ∗USB_OsaMemoryAllocate (uint32_t length)
Reserves the requested amount of memory in bytes.
• void USB_OsaMemoryFree (void ∗p)
Frees the memory previously reserved.
USB OSA Event
•usb_osa_status_t USB_OsaEventCreate (usb_osa_event_handle ∗handle, uint32_t flag)
Creates an event object with all flags cleared.
•usb_osa_status_t USB_OsaEventDestroy (usb_osa_event_handle handle)
Destroys a created event object.
•usb_osa_status_t USB_OsaEventSet (usb_osa_event_handle handle, uint32_t bitMask)
Sets an event flag.
•usb_osa_status_t USB_OsaEventWait (usb_osa_event_handle handle, uint32_t bitMask, uint32_t
flag, uint32_t timeout, uint32_t ∗bitSet)
Waits for an event flag.
•usb_osa_status_t USB_OsaEventCheck (usb_osa_event_handle handle, uint32_t bitMask, uint32_t
∗bitSet)
Checks an event flag.
•usb_osa_status_t USB_OsaEventClear (usb_osa_event_handle handle, uint32_t bitMask)
Clears an event flag.
USB OSA Semaphore
•usb_osa_status_t USB_OsaSemCreate (usb_osa_sem_handle ∗handle, uint32_t count)
Creates a semaphore with a given value.
•usb_osa_status_t USB_OsaSemDestroy (usb_osa_sem_handle handle)
Destroys a semaphore object.
•usb_osa_status_t USB_OsaSemPost (usb_osa_sem_handle handle)
Posts a semaphore.
•usb_osa_status_t USB_OsaSemWait (usb_osa_sem_handle handle, uint32_t timeout)
Waits on a semaphore.
USB OSA Mutex
•usb_osa_status_t USB_OsaMutexCreate (usb_osa_mutex_handle ∗handle)
Creates a mutex.
•usb_osa_status_t USB_OsaMutexDestroy (usb_osa_mutex_handle handle)
Destroys a mutex.
•usb_osa_status_t USB_OsaMutexLock (usb_osa_mutex_handle handle)
Waits for a mutex and locks it.
•usb_osa_status_t USB_OsaMutexUnlock (usb_osa_mutex_handle handle)
Unlocks a mutex.
USB OSA Message Queue
•usb_osa_status_t USB_OsaMsgqCreate (usb_osa_msgq_handle ∗handle, uint32_t count, uint32_t
size)
194
USB Stack Device Reference Manual
Freescale Semiconductor
Function Documentation
Creates a message queue.
•usb_osa_status_t USB_OsaMsgqDestroy (usb_osa_msgq_handle handle)
Destroys a message queue.
•usb_osa_status_t USB_OsaMsgqSend (usb_osa_msgq_handle handle, void ∗msg)
Sends a message.
•usb_osa_status_t USB_OsaMsgqRecv (usb_osa_msgq_handle handle, void ∗msg, uint32_t timeout)
Receives a message.
•usb_osa_status_t USB_OsaMsgqCheck (usb_osa_msgq_handle handle, void ∗msg)
Checks a message queue and receives a message if the queue is not empty.
5.2 Enumeration Type Documentation
5.2.1 enum usb_osa_status_t
Enumerator
kStatus_USB_OSA_Success Success.
kStatus_USB_OSA_Error Failed.
kStatus_USB_OSA_TimeOut Timeout occurs while waiting.
5.2.2 enum usb_osa_event_mode_t
Enumerator
kUSB_OsaEventManualClear The flags of the event is cleared manually.
kUSB_OsaEventAutoClear The flags of the event is cleared automatically.
5.3 Function Documentation
5.3.1 void∗USB_OsaMemoryAllocate ( uint32_t length )
The function is used to reserve the requested amount of memory in bytes and initializes it to 0.
Parameters
length Amount of bytes to reserve.
Returns
Pointer to the reserved memory. NULL if memory can’t be allocated.
5.3.2 void USB_OsaMemoryFree ( void ∗p)
The function is used to free the memory block previously reserved.
Freescale Semiconductor
USB Stack Device Reference Manual
195
Function Documentation
Parameters
pPointer to the start of the memory block previously reserved.
5.3.3 usb_osa_status_t USB_OsaEventCreate ( usb_osa_event_handle ∗handle,
uint32_t flag )
This function creates an event object and sets its clear mode. If the clear mode is kUSB_OsaEvent-
AutoClear, when a task gets the event flags, these flags are cleared automatically. If the clear mode is
kUSB_OsaEventManualClear, the flags must be cleared manually.
Parameters
handle It is an out parameter, which is used to return the pointer of the event object.
flag The event is auto-clear or manual-clear. See the enumeration usb_osa_event_mode_t.
Returns
A USB OSA error code or kStatus_OSA_Success.
Example:
usb_osa_event_handle eventHandle;
usb_osa_status_t usbOsaStatus;
usbOsaStatus = USB_OsaEventCreate(&eventHandle,
kUSB_OsaEventManualClear);
5.3.4 usb_osa_status_t USB_OsaEventDestroy ( usb_osa_event_handle handle )
Parameters
handle Pointer to the event object.
Returns
A USB OSA error code or kStatus_OSA_Success.
Example:
usb_osa_status_t usbOsaStatus;
...
usbOsaStatus = USB_OsaEventDestroy(eventHandle);
196
USB Stack Device Reference Manual
Freescale Semiconductor
Function Documentation
5.3.5 usb_osa_status_t USB_OsaEventSet ( usb_osa_event_handle handle, uint32_t
bitMask )
Sets specified flags for an event object.
Freescale Semiconductor
USB Stack Device Reference Manual
197
Function Documentation
Parameters
handle Pointer to the event object.
bitMask Event flags to be set.
Returns
A USB OSA error code or kStatus_OSA_Success.
Example:
usb_osa_status_t usbOsaStatus;
...
usbOsaStatus = USB_OsaEventSet(eventHandle, 0x01U);
5.3.6 usb_osa_status_t USB_OsaEventWait ( usb_osa_event_handle handle,
uint32_t bitMask, uint32_t flag, uint32_t timeout, uint32_t ∗bitSet )
This function waits for a combination of flags to be set in an event object. An applications can wait for
any/all bits to be set. This function can get the flags that wake up the waiting task.
Parameters
handle Pointer to the event object.
bitMask Event flags to wait.
flag Wait all flags or any flag to be set. 0U - wait any flag, others, wait all flags.
timeout The maximum number of milliseconds to wait for the event. If the wait condition is
not met, passing 0U waits indefinitely when the environment is an RTOS and returns
the kStatus_OSA_Timeout immediately. Pass any value for the bare metal.
bitSet Flags that wake up the waiting task are obtained by this parameter.
Returns
An USB OSA error code or kStatus_OSA_Success.
Example:
usb_osa_status_t usbOsaStatus;
uint32_t bitSet;
...
usbOsaStatus = USB_OsaEventWait(eventHandle, 0x01U, 0U, 0U, &bitSet);
198
USB Stack Device Reference Manual
Freescale Semiconductor
Function Documentation
5.3.7 usb_osa_status_t USB_OsaEventCheck ( usb_osa_event_handle handle,
uint32_t bitMask, uint32_t ∗bitSet )
This function checks for a combination of flags to be set in an event object.
Freescale Semiconductor
USB Stack Device Reference Manual
199
Function Documentation
Parameters
handle Pointer to the event object.
bitMask Event flags to check.
bitSet Flags have been set.
Returns
An USB OSA error code or kStatus_OSA_Success.
Example:
usb_osa_status_t usbOsaStatus;
uint32_t bitSet;
...
usbOsaStatus = USB_OsaEventCheck(eventHandle, 0x01U, &bitSet);
5.3.8 usb_osa_status_t USB_OsaEventClear ( usb_osa_event_handle handle,
uint32_t bitMask )
This function clears flags of an event object.
Parameters
handle Pointer to the event object
bitMask Event flags to be cleared.
Returns
An USB OSA error code or kStatus_OSA_Success.
Example:
usb_osa_status_t usbOsaStatus;
...
usbOsaStatus = USB_OsaEventClear(eventHandle, 0x01U);
5.3.9 usb_osa_status_t USB_OsaSemCreate ( usb_osa_sem_handle ∗handle,
uint32_t count )
This function creates a semaphore and sets the default count.
200
USB Stack Device Reference Manual
Freescale Semiconductor
Function Documentation
Parameters
handle It is an out parameter, which is used to return pointer of the semaphore object.
count Initializes a value of the semaphore.
Returns
An USB OSA error code or kStatus_OSA_Success.
Example:
usb_osa_sem_handle semHandle;
usb_osa_status_t usbOsaStatus;
usbOsaStatus = USB_OsaSemCreate(&semHandle, 1U);
5.3.10 usb_osa_status_t USB_OsaSemDestroy ( usb_osa_sem_handle handle )
This function destroys a semaphore object.
Parameters
handle Pointer to the semaphore.
Returns
An USB OSA error code or kStatus_OSA_Success.
Example:
usb_osa_sem_handle semHandle;
usb_osa_status_t usbOsaStatus;
...
usbOsaStatus = USB_OsaSemDestroy(semHandle);
5.3.11 usb_osa_status_t USB_OsaSemPost ( usb_osa_sem_handle handle )
This function wakes up a task waiting on the semaphore. If a task is not pending, increases the semaphore’s
value.
Freescale Semiconductor
USB Stack Device Reference Manual
201
Function Documentation
Parameters
handle Pointer to the semaphore.
Returns
A USB OSA error code or kStatus_OSA_Success.
Example:
usb_osa_sem_handle semHandle;
usb_osa_status_t usbOsaStatus;
...
usbOsaStatus = USB_OsaSemPost(semHandle);
5.3.12 usb_osa_status_t USB_OsaSemWait ( usb_osa_sem_handle handle, uint32_t
timeout )
This function checks the semaphore’s value. If it is positive, it decreases the semaphore’s value and return
kStatus_OSA_Success.
Parameters
handle Pointer to the semaphore.
timeout The maximum number of milliseconds to wait for the semaphore. If the wait condi-
tion is not met, pass 0U will wait indefinitely when environment is RTOS. And return
kStatus_OSA_Timeout immediately for bare metal no matter what value has been
passed.
Returns
A USB OSA error code or kStatus_OSA_Success.
Example:
usb_osa_sem_handle semHandle;
usb_osa_status_t usbOsaStatus;
...
usbOsaStatus = USB_OsaSemWait(semHandle, 0U);
5.3.13 usb_osa_status_t USB_OsaMutexCreate ( usb_osa_mutex_handle ∗handle )
This function creates a mutex and sets it to an unlocked status.
202
USB Stack Device Reference Manual
Freescale Semiconductor
Function Documentation
Parameters
handle It is out parameter, which is used to return the pointer of the mutex object.
Returns
A USB OSA error code or kStatus_OSA_Success.
Example:
usb_osa_mutex_handle mutexHandle;
usb_osa_status_t usbOsaStatus;
usbOsaStatus = USB_OsaMutexCreate(&mutexHandle);
5.3.14 usb_osa_status_t USB_OsaMutexDestroy ( usb_osa_mutex_handle handle )
This function destroys a mutex and sets it to an unlocked status.
Parameters
handle Pointer to the mutex.
Returns
A USB OSA error code or kStatus_OSA_Success.
Example:
usb_osa_mutex_handle mutexHandle;
usb_osa_status_t usbOsaStatus;
...
usbOsaStatus = USB_OsaMutexDestroy(mutexHandle);
5.3.15 usb_osa_status_t USB_OsaMutexLock ( usb_osa_mutex_handle handle )
This function checks the mutex status. If it is unlocked, it locks it and returns the kStatus_OSA_Success.
Otherwise, it waits forever to lock in RTOS and returns the kStatus_OSA_Success immediately for bare
metal.
Freescale Semiconductor
USB Stack Device Reference Manual
203
Function Documentation
Parameters
handle Pointer to the mutex.
Returns
A USB OSA error code or kStatus_OSA_Success.
Example:
usb_osa_mutex_handle mutexHandle;
usb_osa_status_t usbOsaStatus;
...
usbOsaStatus = USB_OsaMutexLock(mutexHandle);
5.3.16 usb_osa_status_t USB_OsaMutexUnlock ( usb_osa_mutex_handle handle )
This function unlocks a mutex.
Parameters
handle Pointer to the mutex.
Returns
A USB OSA error code or kStatus_OSA_Success.
Example:
usb_osa_mutex_handle mutexHandle;
usb_osa_status_t usbOsaStatus;
...
usbOsaStatus = USB_OsaMutexUnlock(mutexHandle);
5.3.17 usb_osa_status_t USB_OsaMsgqCreate ( usb_osa_msgq_handle ∗handle,
uint32_t count, uint32_t size )
This function creates a message queue.
204
USB Stack Device Reference Manual
Freescale Semiconductor
Function Documentation
Parameters
handle It is an out parameter, which is used to return a pointer of the message queue object.
count The count of elements in the queue.
size Size of every elements in words.
Returns
A USB OSA error code or kStatus_OSA_Success.
Example:
usb_osa_msgq_handle msgqHandle;
usb_osa_status_t usbOsaStatus;
usbOsaStatus = USB_OsaMsgqCreate(msgqHandle, 8U, 4U);
5.3.18 usb_osa_status_t USB_OsaMsgqDestroy ( usb_osa_msgq_handle handle )
This function destroys a message queue.
Parameters
handle Pointer to a message queue.
Returns
A USB OSA error code or kStatus_OSA_Success.
Example:
usb_osa_msgq_handle msgqHandle;
usb_osa_status_t usbOsaStatus;
...
usbOsaStatus = USB_OsaMsgqDestroy(msgqHandle);
5.3.19 usb_osa_status_t USB_OsaMsgqSend ( usb_osa_msgq_handle handle, void
∗msg )
This function sends a message to the tail of the message queue.
Freescale Semiconductor
USB Stack Device Reference Manual
205
Function Documentation
Parameters
handle Pointer to a message queue.
msg The pointer to a message to be put into the queue.
Returns
A USB OSA error code or kStatus_OSA_Success.
Example:
usb_osa_msgq_handle msgqHandle;
message_struct_t message;
usb_osa_status_t usbOsaStatus;
...
usbOsaStatus = USB_OsaMsgqSend(msgqHandle, &message);
5.3.20 usb_osa_status_t USB_OsaMsgqRecv ( usb_osa_msgq_handle handle, void
∗msg, uint32_t timeout )
This function receives a message from the head of the message queue.
Parameters
handle Pointer to a message queue.
msg The pointer to save a received message.
timeout The maximum number of milliseconds to wait for a message. If the wait condition is
not met, passing 0U waits indefinitely when an environment is RTOS and returns the
kStatus_OSA_Timeout immediately for bare metal.
Returns
A USB OSA error code or kStatus_OSA_Success.
Example:
usb_osa_msgq_handle msgqHandle;
message_struct_t message;
usb_osa_status_t usbOsaStatus;
...
usbOsaStatus = USB_OsaMsgqRecv(msgqHandle, &message, 0U);
5.3.21 usb_osa_status_t USB_OsaMsgqCheck ( usb_osa_msgq_handle handle,
void ∗msg )
This function checks a message queue and receives a message if the queue is not empty.
206
USB Stack Device Reference Manual
Freescale Semiconductor
Function Documentation
Parameters
handle Pointer to a message queue.
msg The pointer to save a received message.
Returns
A USB OSA error code or kStatus_OSA_Success.
Example:
usb_osa_msgq_handle msgqHandle;
message_struct_t message;
usb_osa_status_t usbOsaStatus;
...
usbOsaStatus = USB_OsaMsgqCheck(msgqHandle, &message);
Freescale Semiconductor
USB Stack Device Reference Manual
207
Function Documentation
208
USB Stack Device Reference Manual
Freescale Semiconductor
How to Reach Us:
Home Page:
freescale.com
Web Support:
freescale.com/support
Information in this document is provided solely to enable system and
software implementers to use Freescale products. There are no express
or implied copyright licenses granted hereunder to design or fabricate
any integrated circuits based on the information in this document.
Freescale reserves the right to make changes without further notice to
any products herein. Freescale makes no warranty, representation, or
guarantee regarding the suitability of its products for any particular
purpose, nor does Freescale assume any liability arising out of the
application or use of any product or circuit, and specifically disclaims
any and all liability, including without limitation consequential or
incidental damages. “Typical” parameters that may be provided in
Freescale data sheets and/or specifications can and do vary in different
applications, and actual performance may vary over time. All operating
parameters, including “typicals,” must be validated for each customer
application by customer’s technical experts. Freescale does not convey
any license under its patent rights nor the rights of others. Freescale
sells products pursuant to standard terms and conditions of sale, which
can be found at the following address:
freescale.com/SalesTermsandConditions.
Freescale, the Freescale logo, Kinetis, Processor Expert are trademarks
of Freescale Semiconductor, Inc., Reg. U.S. Pat. & Tm. Off. Tower is a
trademark of Freescale Semiconductor, Inc. All other product or service
names are the property of their respective owners. ARM, ARM Powered
logo, and Cortex are registered trademarks of ARM Limited (or its
subsidiaries) in the EU and/or elsewhere. All rights reserved.
© 2016 Freescale Semiconductor, Inc.
Document Number:
KSD K20USBDAPIRM
Rev. 0
Jan 2016

Navigation menu