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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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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: */