test_sl811.c

该原码包含有wince 和 linux 的移植和应用原码

//-----------------------------------------------------------------------------
//	File:		fw.c
//	Contents:	Firmware frameworks task dispatcher and device request parser
//				source.
//
//	Copyright (c) 2002 Cypress Semiconductor, Inc. All rights reserved
//
// $Archive: /USB/ez811/firmware/Emb_Host/fw.c $
// $Date: 4/03/02 4:32p $
// $Revision: 1 $
//-----------------------------------------------------------------------------
#include "ezusb.h"
#include "ezregs.h"
#include "def.h"
#include "utils.h"

//-----------------------------------------------------------------------------
// Random Macros
//-----------------------------------------------------------------------------
//#define	min(a,b) (((a)<(b))?(a):(b))
//#define	max(a,b) (((a)>(b))?(a):(b))

//-----------------------------------------------------------------------------
// Constants
//-----------------------------------------------------------------------------

//-----------------------------------------------------------------------------
// Global Variables
//-----------------------------------------------------------------------------
volatile BOOL	GotSUD;
BOOL		Rwuen;
BOOL		Selfpwr;
volatile BOOL	Sleep;						// Sleep mode enable flag

DWORD	pDeviceDscr;	// Pointer to Device Descriptor; Descriptors may be moved
DWORD	pConfigDscr;	
DWORD	pStringDscr;	

//-----------------------------------------------------------------------------
// Prototypes
//-----------------------------------------------------------------------------
void SetupCommand(void);
void TD_Init(void);
void TD_Poll(void);
BOOL TD_Suspend(void);
BOOL TD_Resume(void);

BOOL DR_GetDescriptor(void);
BOOL DR_SetConfiguration(void);
BOOL DR_GetConfiguration(void);
BOOL DR_SetInterface(void);
BOOL DR_GetInterface(void);
BOOL DR_GetStatus(void);
BOOL DR_ClearFeature(void);
BOOL DR_SetFeature(void);
BOOL DR_VendorCmnd(void);

//-----------------------------------------------------------------------------
// Code
//-----------------------------------------------------------------------------

// Task dispatcher
void TestSL811(void)
{
	Uart_Printf("\nSL811HST test\n") ;
	Uart_Printf("Please insert a USB Device\n") ;
	Uart_Printf("for example : USB Flash Disk, USB MOUSE, USB keyboard......\n") ;
	// Initialize Global States
	Sleep = FALSE;					// Disable sleep mode
	Rwuen = FALSE;					// Disable remote wakeup
	Selfpwr = FALSE;				// Disable self powered
	GotSUD = FALSE;					// Clear "Got setup data" flag

	// Initialize user device
	TD_Init();

	//EZUSB_IRQ_ENABLE();				// Enable USB interrupt (INT2)
	EZUSB_ENABLE_RSMIRQ();				// Wake-up interrupt

	// The 8051 is responsible for all USB events, even those that have happened
	// before this point.  We cannot ignore pending USB interrupts.
	// The chip will come out of reset with the flags all cleared.
	//	USBIRQ = 0xff;				// Clear any pending USB interrupt requests
	PORTCCFG |= 0xc0;				// Turn on r/w lines for external memory 

	USBBAV = USBBAV | 1 & ~bmBREAK;	// Disable breakpoints and autovectoring
	USBIEN |= bmSUDAV | bmSUTOK | bmSUSP | bmURES;	// Enable selected interrupts
	//rINTMSK &= ~BIT_GLOBAL;					// Enable interrupts
	//EA = 1;	

  	// Task Dispatcher
	while(Uart_GetKey()!=ESC_KEY)		// Main Loop
	{
		if(GotSUD)				// Wait for SUDAV
		{
			//SetupCommand();	 		// Implement setup command
  			GotSUD = FALSE;		   	// Clear SUDAV flag
		}

		// Poll User Device
		// NOTE: Idle mode stops the processor clock.  There are only two
		// ways out of idle mode, the WAKEUP pin, and detection of the USB
		// resume state on the USB bus.  The timers will stop and the
		// processor will not wake up on any other interrupts.
		if (Sleep)
		    {
    		if(TD_Suspend())
    		    { 
    		    Sleep = FALSE;	   		// Clear the "go to sleep" flag.  Do it here to prevent any race condition between wakeup and the next sleep.
    		    do
    		        {
       			    //EZUSB_Susp();			// Place processor in idle mode.
    		        }
                while(!Rwuen && EZUSB_EXTWAKEUP());
                // Must continue to go back into suspend if the host has disabled remote wakeup
                // *and* the wakeup was caused by the external wakeup pin.
                
    			// 8051 activity will resume here due to USB bus or Wakeup# pin activity.
    			//EZUSB_Resume();	// If source is the Wakeup# pin, signal the host to Resume.		
    			TD_Resume();
    		    }   
		    }
		TD_Poll();
	}
}

static char title[] = "USB HOST实验";
static char tip[]   = "实验USB HOST控制芯片SL811HS,插入USB设备后查看实验结果,按ESC键返回";

//TestSL811Item在prog_entry.c里被引用
TEST_PROGRAM_ITEM TestSL811Item = {
				(TEST_PROGRAM)TestSL811, //入口地址
				title, 					//显示名称
				tip, 					//帮助或提示信息,可为NULL
				1};						//使用printf,puts,putch等函数时在LCD上也显示输出字符(串)