Added new USB_Host_ClearPipeStall() convenience function to clear a stall condition...

[pub/USBasp.git] / LUFA / Drivers / USB / LowLevel / Host.c

diff --git a/LUFA/Drivers/USB/LowLevel/Host.c b/LUFA/Drivers/USB/LowLevel/Host.c
index c059b43..421719b 100644 (file)
--- a/LUFA/Drivers/USB/LowLevel/Host.c
+++ b/LUFA/Drivers/USB/LowLevel/Host.c
@@ -302,4 +302,39 @@ uint8_t USB_Host_SetDeviceConfiguration(uint8_t ConfigNumber)
        return USB_Host_SendControlRequest(NULL);\r
 }\r
 \r
+uint8_t USB_Host_GetDeviceDescriptor(USB_Descriptor_Device_t* DeviceDescriptorPtr)\r
+{\r
+       USB_ControlRequest = (USB_Request_Header_t)\r
+               {\r
+                       bmRequestType: (REQDIR_DEVICETOHOST | REQTYPE_STANDARD | REQREC_DEVICE),\r
+                       bRequest:      REQ_GetDescriptor,\r
+                       wValue:        (DTYPE_Device << 8),\r
+                       wIndex:        0,\r
+                       wLength:       sizeof(USB_Descriptor_Device_t),\r
+               };\r
+\r
+       Pipe_SelectPipe(PIPE_CONTROLPIPE);\r
+       \r
+       return USB_Host_SendControlRequest(DeviceDescriptorPtr);\r
+}\r
+\r
+uint8_t USB_Host_ClearPipeStall(uint8_t EndpointNum)\r
+{\r
+       if (Pipe_GetPipeToken() == PIPE_TOKEN_IN)\r
+         EndpointNum |= (1 << 7);\r
+\r
+       USB_ControlRequest = (USB_Request_Header_t)\r
+               {\r
+                       .bmRequestType = (REQDIR_HOSTTODEVICE | REQTYPE_STANDARD | REQREC_ENDPOINT),\r
+                       .bRequest      = REQ_ClearFeature,\r
+                       .wValue        = FEATURE_ENDPOINT_HALT,\r
+                       .wIndex        = EndpointNum,\r
+                       .wLength       = 0,\r
+               };\r
+\r
+       Pipe_SelectPipe(PIPE_CONTROLPIPE);\r
+       \r
+       return USB_Host_SendControlRequest(NULL);\r
+}\r
+\r
 #endif\r