protodma.c

USB鼠标,单片机的,可以

#include "..\..\Driver\inc\includes.h"


#include "mainloop.h"
#include "usb100.h"
#include "chap_9.h"


extern CONTROL_XFER ControlData;
extern IO_REQUEST idata ioRequest;
extern EPPFLAGS bEPPflags;
extern BOOL bNoRAM;
extern unsigned char idata EpBuf[EP2_PACKET_SIZE];
byte_count byte_cnt;



//获取固件版本号
void get_firmware_version()
{
	unsigned char i;

	i = 0x30; // firmware version number
	single_transmit((unsigned char *)&i, 1);
}

//获取端点2缓存区大小
void get_buffer_size()
{
	unsigned char i[4];

	if(bNoRAM == TRUE) {
		i[0] = EP2_PACKET_SIZE;
		i[1] = 0;
		i[2] = 0;
		i[3] = 0;
	} else {
		i[0] = 0;
		i[1] = 1;
		i[2] = 0;
		i[3] = 0;
	}
	single_transmit((unsigned char *)&i, 4);
}

//厂商请求处理
void read_write_register(void)
{
//	uchar len;
//	uchar epstatus;

//	ComShowString(1,"厂商请求");
	if(ControlData.DeviceRequest.bmRequestType & (unsigned char)USB_ENDPOINT_DIRECTION_MASK) 
	{


		if(ControlData.DeviceRequest.wIndex == GET_FIRMWARE_VERSION &&
			ControlData.DeviceRequest.wValue == 0 &&
			ControlData.DeviceRequest.wLength == 1)
			get_firmware_version();//获取固件版本号
		else if(ControlData.DeviceRequest.wIndex == GET_BUFFER_SIZE &&
			ControlData.DeviceRequest.wValue == 0 &&
			ControlData.DeviceRequest.wLength == 4)
			get_buffer_size();//获取缓冲区大小
		else
			stall_ep0();

	}	// if read register
	else
	{
		stall_ep0();
	}
}