usb_class_requests.c

USB CDC and HID composite unit.

//	 0x0000: stop break
//
//-----------------------------------------------------------------------------

void CS_Send_Break(void)
{
	if (   (Setup.bmRequestType == OUT_CL_INTERFACE)
		&& (Setup.wLength.i == 0) )
	{
		Send_Break( Setup.wValue.i );
		setup_handled = TRUE;
	}
}

//-----------------------------------------------------------------------------
// swap_endian_long
//-----------------------------------------------------------------------------
// swap endian for long varialbe
//-----------------------------------------------------------------------------

#if defined BIG_ENDIAN

void swap_endian_long( ULONG idata *lptr )
{
	BYTE tmp[4];
	BYTE idata * ptr = (BYTE idata *)lptr;

	tmp[3] = ptr[0];
	tmp[2] = ptr[1];
	tmp[1] = ptr[2];
	tmp[0] = ptr[3];

	ptr[0] = tmp[0];
	ptr[1] = tmp[1];
	ptr[2] = tmp[2];
	ptr[3] = tmp[3];
}

#endif // end of BIG_ENDIAN



//-----------------------------------------------------------------------------
// HID class request handlers
//-----------------------------------------------------------------------------

//-----------------------------------------------------------------------------
// Get_Report
//-----------------------------------------------------------------------------
//
//	mandatory to HID class
//	Send report to host via control pipe
//	Input and feature report are supported
//
//-----------------------------------------------------------------------------

static void Get_Report( void )
{
	if (   (Setup.bmRequestType == IN_CL_INTERFACE)
		&& (Setup.wValue.c[LSB] == 0) )				// Report ID
	{
		switch ( Setup.wValue.c[MSB] )
		{
			case HID_REPORT_TYPE_INPUT:				// Input report
				DataPtr = (BYTE *)HID_InOut_Packet;
				DataSize = HID_IN_REPORT_SIZE;
				setup_handled = TRUE;
				break;
/*
			case HID_REPORT_TYPE_FEATURE:			// Feature report
				DataPtr = (BYTE *)cs_temp_buffer;
				DataSize = CS_TEMP_BUF_SIZE;
				setup_handled = TRUE;
				break;
*/
			default:
				break;
		}
	}

	if ( setup_handled )
	{
		// Set serviced Setup Packet, Endpoint 0 intransmit mode, 
		Ep_Status0 = EP_TX;						
		if ( DataSize > Setup.wLength.i )
			DataSize = Setup.wLength.i;				// Send only requested amount of data
	}
}

/*
//-----------------------------------------------------------------------------
// Set_Report
//-----------------------------------------------------------------------------
//
//	Receive report from host via control pipe
//	Output and feature report are supported
//
//-----------------------------------------------------------------------------

static void Set_Report( void )
{
	if (   (Setup.bmRequestType == OUT_CL_INTERFACE)
		&& (Setup.wValue.c[LSB] == 0) )				// Report ID
	{
		switch ( Setup.wValue.c[MSB] )
		{
			case HID_REPORT_TYPE_OUTPUT:			// Output report
				DataPtr = (BYTE *)cs_temp_buffer;
				setup_handled = TRUE;
				break;

			case HID_REPORT_TYPE_FEATURE:			// Feature report
				DataPtr = (BYTE *)cs_temp_buffer;
				setup_handled = TRUE;
				break;

			default:
				break;
		}
	}

	if ( setup_handled )
	{
		// Set serviced Setup Packet, Endpoint 0 intransmit mode, 
		Ep_Status0 = EP_RX;						
		DataSize = CS_TEMP_BUF_SIZE;
		if ( DataSize > Setup.wLength.i )
			DataSize = Setup.wLength.i;				// Send only requested amount of data
	}
}

//-----------------------------------------------------------------------------
// Get_Idle
//-----------------------------------------------------------------------------
//	
//	return current idle rate for a specified input report over interrupt IN pipe
//
//-----------------------------------------------------------------------------

static void Get_Idle( void )
{
	if (   (Setup.bmRequestType == IN_CL_INTERFACE)
		&& (Setup.wValue.c[MSB] == 0)			// must be 0
		&& (Setup.wLength.i == 1) )				// request size is always 1
	{
		switch ( Setup.wValue.c[LSB] )				// Report ID
		{
			case 1:
				cs_temp_buffer[0] = IDLE_RATE_1;
				DataPtr = (BYTE *)cs_temp_buffer;
				setup_handled = TRUE;
				break;

			default:
				break;
	}

	if ( setup_handled )
	{
		// Set serviced Setup Packet, Endpoint 0 intransmit mode, 
		Ep_Status0 = EP_TX;						
		DataSize = 1;
	}
}

//-----------------------------------------------------------------------------
// Set_Idle
//-----------------------------------------------------------------------------
//
//	Set idle rate to specified duration
//	  When duration equals to zero, stop the report
//
//-----------------------------------------------------------------------------

static void Set_Idle( void )
{
	if (   (Setup.bmRequestType == OUT_CL_INTERFACE)
		&& (Setup.wLength.i == 0) )					// Length must be 0
	{
		switch ( Setup.wValue.c[LSB] )					// Report ID
		{
			case 0:
				IDLE_RATE_1 = Setup.wValue.c[MSB];		// set Duration to all report ID
				IDLE_RATE_2 = IDLE_RATE_1;
				setup_handled = TRUE;
				break;

			case 1:
				IDLE_RATE_1 = Setup.wValue.c[MSB];		// set Duration to specified report ID
				setup_handled = TRUE;
				break;

			default:
				break;
		}
	}
}

//-----------------------------------------------------------------------------
// Get_Protocol
//-----------------------------------------------------------------------------
//
//	Just for boot device (mouse/keyboard)
//	return active protocol, either boot or report
//
//-----------------------------------------------------------------------------

bit cs_boot_protocol = HID_PROTOCOL_REPORT;

static uchar code cs_zero[1] = { 0 };
static uchar code cs_one[1]  = { 1 };

static void Get_Protocol( void )
{
	if (   (Setup.bmRequestType == IN_CL_INTERFACE)
		&& (Setup.wValue.i == 0)				// must be 0
		&& (Setup.wLength.i == 1) )				// request size is always 1
	{
		if ( cs_boot_protocol == HID_PROTOCOL_BOOT )
			DataPtr = (BYTE *)cs_zero;
		else
			DataPtr = (BYTE *)cs_one;
		DataSize = 1;
		Ep_Status0 = EP_TX;						
		setup_handled = TRUE;
	}
}

//-----------------------------------------------------------------------------
// Set_Protocol
//-----------------------------------------------------------------------------
//
//	Just for boot device
//	Switch active protocol
//
//-----------------------------------------------------------------------------

static void Set_Protocol( void )
{
	if (   (Setup.bmRequestType == OUT_CL_INTERFACE)
		&& (Setup.wValue.c[MSB] == 0)			// upper byte of protocol selector
		&& (Setup.wLength.i == 0) )				// Length must be 0
	{
		switch ( Setup.wValue.c[LSB] )			// 
		{
			case HID_PROTOCOL_BOOT:
				cs_boot_protocol = HID_PROTOCOL_BOOT;
				setup_handled = TRUE;
				break;

			case HID_PROTOCOL_REPORT:
				cs_boot_protocol = HID_PROTOCOL_REPORT;
				setup_handled = TRUE;
				break;

			default:
				break;
		}
	}
}

*/


//-----------------------------------------------------------------------------
// End Of File
//-----------------------------------------------------------------------------