ahoneybun/qmk_firmware
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

Add host mode USB Class driver stubs, add beginnings of a CDC host class driver.

Browse source 
Split out common defines/types from class drivers into a seperate common class driver directory.

Make central USB Class driver dispatch headers, used for both device and host modes.
This commit is contained in:
Dean Camera 2009-06-14 15:55:13 +00:00
parent 9fdc53d765
commit afe6ae1402
97 changed files with 2694 additions and 1205 deletions
Download patch file Download diff file Expand all files Collapse all files

109
Demos/Host/ClassDriver/CDCHost/CDCHost.c
View file

@ -50,7 +50,6 @@ int main(void)
for (;;)
{
CDC_Host_Task();
USB_USBTask();
}
}
@ -121,111 +120,3 @@ void EVENT_USB_DeviceEnumerationFailed(const uint8_t ErrorCode, const uint8_t Su
LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
}
/** Task to set the configuration of the attached device after it has been enumerated, and to read in
* data received from the attached CDC device and print it to the serial port.
*/
void CDC_Host_Task(void)
{
uint8_t ErrorCode;
switch (USB_HostState)
{
case HOST_STATE_Addressed:
/* Standard request to set the device configuration to configuration 1 */
USB_ControlRequest = (USB_Request_Header_t)
{
.bmRequestType = (REQDIR_HOSTTODEVICE | REQTYPE_STANDARD | REQREC_DEVICE),
.bRequest = REQ_SetConfiguration,
.wValue = 1,
.wIndex = 0,
.wLength = 0,
};
/* Select the control pipe for the request transfer */
Pipe_SelectPipe(PIPE_CONTROLPIPE);
/* Send the request, display error and wait for device detach if request fails */
if ((ErrorCode = USB_Host_SendControlRequest(NULL)) != HOST_SENDCONTROL_Successful)
{
puts_P(PSTR("Control Error (Set Configuration).\r\n"));
printf_P(PSTR(" -- Error Code: %d\r\n"), ErrorCode);
/* Indicate error via status LEDs */
LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
/* Wait until USB device disconnected */
while (USB_IsConnected);
break;
}
USB_HostState = HOST_STATE_Configured;
break;
case HOST_STATE_Configured:
puts_P(PSTR("Getting Config Data.\r\n"));
/* Get and process the configuration descriptor data */
if ((ErrorCode = ProcessConfigurationDescriptor()) != SuccessfulConfigRead)
{
if (ErrorCode == ControlError)
puts_P(PSTR("Control Error (Get Configuration).\r\n"));
else
puts_P(PSTR("Invalid Device.\r\n"));
printf_P(PSTR(" -- Error Code: %d\r\n"), ErrorCode);
/* Indicate error via status LEDs */
LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
/* Wait until USB device disconnected */
while (USB_IsConnected);
break;
}
puts_P(PSTR("CDC Device Enumerated.\r\n"));
USB_HostState = HOST_STATE_Ready;
break;
case HOST_STATE_Ready:
/* Select and the data IN pipe */
Pipe_SelectPipe(CDC_DATAPIPE_IN);
/* Check to see if a packet has been received */
if (Pipe_IsINReceived())
{
/* Check if data is in the pipe */
if (Pipe_IsReadWriteAllowed())
{
/* Get the length of the pipe data, and create a new buffer to hold it */
uint16_t BufferLength = Pipe_BytesInPipe();
uint8_t Buffer[BufferLength];
/* Read in the pipe data to the temporary buffer */
Pipe_Read_Stream_LE(Buffer, BufferLength);
/* Print out the buffer contents to the USART */
for (uint16_t BufferByte = 0; BufferByte < BufferLength; BufferByte++)
putchar(Buffer[BufferByte]);
}
/* Clear the pipe after it is read, ready for the next packet */
Pipe_ClearIN();
}
/* Select and unfreeze the notification pipe */
Pipe_SelectPipe(CDC_NOTIFICATIONPIPE);
Pipe_Unfreeze();
/* Check if a packet has been received */
if (Pipe_IsINReceived())
{
/* Discard the unused event notification */
Pipe_ClearIN();
}
/* Freeze notification IN pipe after use */
Pipe_Freeze();
break;
}
}