?? protodma.c
字號:
#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;
//獲取固件版本號
void get_firmware_version()
{
unsigned char i;
i = 0x30; // firmware version number
single_transmit((unsigned char *)&i, 1);
}
//獲取端點2緩存區(qū)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);
}
//廠商請求處理
void read_write_register(void)
{
// uchar len;
// uchar epstatus;
// ComShowString(1,"廠商請求");
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();//獲取固件版本號
else if(ControlData.DeviceRequest.wIndex == GET_BUFFER_SIZE &&
ControlData.DeviceRequest.wValue == 0 &&
ControlData.DeviceRequest.wLength == 4)
get_buffer_size();//獲取緩沖區(qū)大小
else
stall_ep0();
} // if read register
else
{
stall_ep0();
}
}
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