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Added new USB_Host_GetDeviceConfiguration() and USB_Host_GetInterfaceAltSetting() functions.

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This commit is contained in:
Dean Camera 2011-11-24 11:33:10 +00:00
parent 7f8dbb4908
commit e915d968a5
5 changed files with 71 additions and 11 deletions
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14
LUFA/Common/Attributes.h
View file

@ -112,15 +112,15 @@
* identical name (in which case the weak reference is discarded at link time).
*/
#define ATTR_WEAK __attribute__ ((weak))
/** Forces the compiler to not automatically zero the given global variable on startup, so that the
* current RAM contents is retained. Under most conditions this value will be random due to the
* behaviour of volatile memory once power is removed, but may be used in some specific circumstances,
* like the passing of values back after a system watchdog reset.
*/
#define ATTR_NO_INIT __attribute__ ((section (".noinit")))
#endif
/** Forces the compiler to not automatically zero the given global variable on startup, so that the
* current RAM contents is retained. Under most conditions this value will be random due to the
* behaviour of volatile memory once power is removed, but may be used in some specific circumstances,
* like the passing of values back after a system watchdog reset.
*/
#define ATTR_NO_INIT __attribute__ ((section (".noinit")))
/** Places the function in one of the initialization sections, which execute before the main function
* of the application. Refer to the avr-libc manual for more information on the initialization sections.
*

1
LUFA/DoxygenPages/ChangeLog.txt
View file

@ -13,6 +13,7 @@
* - Added support for the new B series XMEGA devices
* - Added support for version 2 of the Teensy boards (thanks to Christoph Redecker)
* - Added new Android Accessory Host class driver
* - Added new USB_Host_GetDeviceConfiguration() and USB_Host_GetInterfaceAltSetting() functions
* - Library Applications:
* - Added User Application APIs to the CDC and DFU class bootloaders
* - Added INVERTED_ISP_MISO compile time option to the AVRISP-MKII clone project (thanks to Chuck Rohs)

3
LUFA/DoxygenPages/FutureChanges.txt
View file

@ -24,8 +24,6 @@
* -# Abstract out Mass Storage byte send/receive to prevent low level API use in projects
* -# Consider switch from endpoint numbers to full endpoint addresses to ease future architecture expansion
* -# Fix HID report parser usage support for array types
* -# Add additional standard request helper functions to host mode
* -# Add Dataflash_SendCommand()
* -# Make HOST_DEVICE_SETTLE_DELAY_MS a global variable that can be changed
* -# Add MANDATORY_EVENT_FUNCTIONS compile time option
* -# Add watchdog support to the library and apps/bootloaders
@ -40,7 +38,6 @@
* -# Add class driver support for Test and Measurement class
* -# Add class driver support for EEM class
* -# Add class driver support for ECM class
* -# Add class driver support for the Android Accessory Host class
* -# Port all demos to multiple architectures
* - Ports
* -# Finish USB XMEGA port

35
LUFA/Drivers/USB/Core/HostStandardReq.c
View file

@ -211,6 +211,22 @@ uint8_t USB_Host_SetDeviceConfiguration(const uint8_t ConfigNumber)
return ErrorCode;
}
uint8_t USB_Host_GetDeviceConfiguration(uint8_t* const ConfigNumber)
{
USB_ControlRequest = (USB_Request_Header_t)
{
.bmRequestType = (REQDIR_DEVICETOHOST | REQTYPE_STANDARD | REQREC_DEVICE),
.bRequest = REQ_GetConfiguration,
.wValue = 0,
.wIndex = 0,
.wLength = sizeof(uint8_t),
};
Pipe_SelectPipe(PIPE_CONTROLPIPE);
return USB_Host_SendControlRequest(ConfigNumber);
}
uint8_t USB_Host_GetDeviceDescriptor(void* const DeviceDescriptorPtr)
{
USB_ControlRequest = (USB_Request_Header_t)
@ -235,7 +251,7 @@ uint8_t USB_Host_GetDeviceStringDescriptor(const uint8_t Index,
{
.bmRequestType = (REQDIR_DEVICETOHOST | REQTYPE_STANDARD | REQREC_DEVICE),
.bRequest = REQ_GetDescriptor,
.wValue = (DTYPE_String << 8) | Index,
.wValue = ((DTYPE_String << 8) | Index),
.wIndex = 0,
.wLength = BufferLength,
};
@ -294,5 +310,22 @@ uint8_t USB_Host_SetInterfaceAltSetting(const uint8_t InterfaceIndex,
return USB_Host_SendControlRequest(NULL);
}
uint8_t USB_Host_GetInterfaceAltSetting(const uint8_t InterfaceIndex,
uint8_t* const AltSetting)
{
USB_ControlRequest = (USB_Request_Header_t)
{
.bmRequestType = (REQDIR_DEVICETOHOST | REQTYPE_STANDARD | REQREC_INTERFACE),
.bRequest = REQ_GetInterface,
.wValue = 0,
.wIndex = InterfaceIndex,
.wLength = sizeof(uint8_t),
};
Pipe_SelectPipe(PIPE_CONTROLPIPE);
return USB_Host_SendControlRequest(AltSetting);
}
#endif

29
LUFA/Drivers/USB/Core/HostStandardReq.h
View file

@ -130,6 +130,19 @@
* \return A value from the \ref USB_Host_SendControlErrorCodes_t enum to indicate the result.
*/
uint8_t USB_Host_SetDeviceConfiguration(const uint8_t ConfigNumber);
/** Sends a GET CONFIGURATION standard request to the attached device, to retrieve the currently selected
* device configuration index.
*
* \note After this routine returns, the control pipe will be selected.
*
* \ingroup Group_PipeControlReq
*
* \param[out] ConfigNumber Pointer to a location where the retrieved configuration index should be stored.
*
* \return A value from the \ref USB_Host_SendControlErrorCodes_t enum to indicate the result.
*/
uint8_t USB_Host_GetDeviceConfiguration(uint8_t* const ConfigNumber) ATTR_NON_NULL_PTR_ARG(1);
/** Sends a GET DESCRIPTOR standard request to the attached device, requesting the device descriptor.
* This can be used to easily retrieve information about the device such as its VID, PID and power
@ -206,6 +219,22 @@
uint8_t USB_Host_SetInterfaceAltSetting(const uint8_t InterfaceIndex,
const uint8_t AltSetting);
/** Retrieves the current alternative setting for the specified interface, via a GET INTERFACE standard request to
* the attached device.
*
* \note After this routine returns, the control pipe will be selected.
*
* \ingroup Group_PipeControlReq
*
* \param[in] InterfaceIndex Index of the interface whose alternative setting is to be altered.
* \param[out] AltSetting Pointer to a location where the retrieved alternative setting value should be stored.
*
* \return A value from the \ref USB_Host_SendControlErrorCodes_t enum to indicate the result.
*/
uint8_t USB_Host_GetInterfaceAltSetting(const uint8_t InterfaceIndex,
uint8_t* const AltSetting) ATTR_NON_NULL_PTR_ARG(2);
/* Private Interface - For use in library only: */
#if !defined(__DOXYGEN__)
/* Enums: */