test_usb.c

ADI 公司的DSP ADSP21369 EZ-KIT LITE开发板的全部源代码

/*********************************************************************************

Copyright(c) 2005 Analog Devices, Inc. All Rights Reserved.

This software is proprietary and confidential.  By using this software you agree
to the terms of the associated Analog Devices License Agreement.

*********************************************************************************/


#include "DSPIncludes.h"
#include "services.h"		// system service includes
#include "adi_net2272.h"	// NET2272 device driver includes
#include "plx\NcCommon.h"
#include "plx\NcFwApi.h"
#include "plx\Net2272.h"
#include "usbcmd.h"

#define SDMODIFY  (BIT_17)


extern volatile bool g_bDeviceConfigured;

// firmware version string info
#pragma align 4

char FwVersionInfo[NUM_VERSION_STRINGS][MAX_VERSION_STRING_LEN] = {	__DATE__, //build date
																	__TIME__, //build time
#ifdef __ADSP21262__
																	"SHARC - 21262",
#elif __ADSP21364__
																	"SHARC - 21364",
#elif __ADSP21369__
																	"SHARC - 21369",
#endif
																	"01.00.00", //version number
																	"Loopback"}; //application name

/*********************************************************************

Prototypes

*********************************************************************/

unsigned int QuerySupport( u32 u32Command );
unsigned int Loopback( u32 u32Count);
unsigned int ReadMemory(  u8 *p8Address, u32 u32Count );
unsigned int WriteMemory( u8 *p8Address, u32 u32Count );

/*********************************************************************

Static data

*********************************************************************/
ADI_DEV_1D_BUFFER UsbcbBuffer;



/*********************************************************************

The loopback function.  This test never returns.

*********************************************************************/
int TEST_USB(void)
{
	unsigned int Result;
	bool bKeepRunning = TRUE;
	USBCB usbcb;
	USBCB *pusbcb = &usbcb;

	// initialize the buffer
	UsbcbBuffer.Data = &usbcb;
	UsbcbBuffer.ElementCount = sizeof(usbcb) * BYTES_IN_SHARC_BYTE;
	UsbcbBuffer.ElementWidth = 1;
	UsbcbBuffer.CallbackParameter = NULL;
	UsbcbBuffer.ProcessedFlag = FALSE;
	UsbcbBuffer.ProcessedElementCount = 0;
	UsbcbBuffer.pNext = NULL;

#if ( defined(__ADSP21375__) || defined(__ADSP21369__) )
	// make sure DMA is off and flushed
	* (volatile int *)DMAC0 = (DFLSH | TFLSH);
#endif
	
	
	Result = adi_dev_Open();

	while (!g_bDeviceConfigured)  // wait here until the device is configured
	;

	// while we should keep running
	while( bKeepRunning )
	{
		// wait for a USB command block from the host indicating what function we should perform
		Result = adi_dev_Read(ADI_DEV_1D, (ADI_DEV_BUFFER *)&UsbcbBuffer);

		if ( ADI_DEV_RESULT_SUCCESS == Result )
		{

			// switch on the command we just received
			switch( pusbcb->ulCommand )
			{
				// host is asking if we support a given command
				case QUERY_SUPPORT:
					Result = QuerySupport(pusbcb->ulData );
					break;

				// get the firmware version
				case GET_FW_VERSION:
					Result = ReadMemory((u8*)FwVersionInfo, pusbcb->ulCount );
					break;

				// run loopback
				case LOOPBACK:
					Result = Loopback(pusbcb->ulCount );
					break; //return( ADI_DEV_RESULT_SUCCESS == Result );

				// unsupported command
				default:
					break;
			}
		}
	}
	
	return 0;
}


#ifdef _STANDALONE_
void main(void)
{
	TEST_USB();
}
#endif //_STANDALONE_