?? main.c
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//CH372外部固件模式 命令子函數 默認在24MHz下
#include <REG52.h>
#include <intrins.h>
#include <CH375INC.H>
#include <custom_define.h>
#include <usb_descriptor.h>
#include <stdio.h>
//#ifndef DELAY_CONSTANT
//#define DELAY_CONSTANT
//#endif
/*sbit KEY= P3^3;
sbit LED4= P1^4;
sbit LED5= P1^5;
sbit LED6= P1^6;
sbit LED7= P1^7;
*/
UINT8 int_status;
//bit flag_err_unknownsetup;
//UINT8 data_buf[8];
union _ep0_data
{
UINT8 data_buf[8];
struct
{
UINT8 bmRequestType; //標準請求字
UINT8 bRequest; //請求代碼
UINT16 wValue; //特性選擇高
UINT16 wIndx; //索引
UINT16 wLength; //數據長度
}device_request;
}ep0_data;
struct _desc_info
{
UINT8 desc_type;
UINT8 desc_index;
UINT8 desc_length;
}desc_info;
bit flag_return_desc;
bit flag_configured;
bit flag_set_add;
bit flag_report_input;
UINT8 configure_value;
UINT8 report_input_length;
UINT8 report_id;
UINT8 report_x=0,report_y=0;
///////////////////////////////
UINT8 test_temp=0xff;
UINT8 idata test_buf[128];
UINT8 test_count=0;
////////////////////////////////
UINT8 *p_desc_type;
void delay();
UINT8 CH37x_get_status();
void CH37x_unlock_usb();
UINT8 CH37x_rd_usb_data();
void CH37x_set_endp3(UINT8);
void CH37x_set_usb_addr(UINT8);
void CH37x_return_desc();
void CH37x_wr_usb_data3(UINT8);
void CH37x_wr_usb_data5(UINT8);
bit CH37x_set_usb_mode(UINT8);
void CH37x_set_endp4(UINT8);
void CH37x_set_endp5(UINT8);
void CH37x_set_endp6(UINT8);
void CH37x_set_endp7(UINT8);
void CH37x_return_report();
void intt1() interrupt 2 //using 1
{
UINT8 status_temp,ep0_data_len,requesttype_temp,usb_address;
IE1=0;
status_temp=CH37x_get_status();
switch(status_temp)
{
case(USB_INT_EP0_SETUP): // 端點0 的接收器接收到數據，SETUP 成功
{
ep0_data_len=CH37x_rd_usb_data();
if(ep0_data_len!=8)
{ //flag_err_unknownsetup=1;
CH37x_set_endp3(0x0f);//return stall
break;
}
///////////////////
test_buf[test_count++]=ep0_data.device_request.bmRequestType;
test_buf[test_count++]=ep0_data.device_request.bRequest;
test_buf[test_count++]=ep0_data.data_buf[2];
test_buf[test_count++]=ep0_data.data_buf[3];
test_buf[test_count++]=ep0_data.data_buf[4];
test_buf[test_count++]=ep0_data.data_buf[5];
test_buf[test_count++]=ep0_data.data_buf[6];
test_buf[test_count++]=ep0_data.data_buf[7];
///////////////////
requesttype_temp=ep0_data.device_request.bmRequestType>>5&0x03;
switch(requesttype_temp)
{
case(0): //setup standard request
{
switch(ep0_data.device_request.bRequest)
{
case(DEF_USB_GET_STATUS):
{
ep0_data.data_buf[0]=0;
ep0_data.data_buf[1]=0;
CH37x_wr_usb_data3(2);
break;//asm// return 數據0
}
case(DEF_USB_CLR_FEATURE):
{
if(ep0_data.device_request.bmRequestType&0x1f==0x02)
{
switch(ep0_data.data_buf[4])
{
case(0x82):
{
CH37x_set_endp7(0x8E); //發命令清除端點
break;
}
case(0x02):
{
CH37x_set_endp6(0x80); //清除端點2下傳
break;
}
case(0x81):
{
CH37x_set_endp5(0x8E);
break;
}
case(0x01):
{
CH37x_set_endp4(0x80);
break;
}
default:
break;
}
}
else{CH37x_set_endp3(0x0f);}//return stall
break;
}
case(DEF_USB_SET_FEATURE):
{
CH37x_set_endp3(0x0f);//return stall
break;
}
case(DEF_USB_SET_ADDRESS): //////////////LED
{
usb_address=ep0_data.data_buf[2];//ep0_data.device_request.wValue>>8&0xff (UINT8);
CH37x_wr_usb_data3(0);//CH37x_set_endp3(0xc0); //return ack
//ep0_data.data_buf[0]=0;CH37x_wr_usb_data3(1);
//delay();delay();
flag_set_add=1;
break;
}
case(DEF_USB_GET_DESCR): ///////////////LED
{
desc_info.desc_type=ep0_data.data_buf[3];
desc_info.desc_index=ep0_data.data_buf[2];
desc_info.desc_length=ep0_data.data_buf[6];
flag_return_desc=1;
switch(desc_info.desc_type)
{
case(1):{p_desc_type=device_descriptor;break;}
case(2):{p_desc_type=config_descriptor;break;}//config interface class endpoint desc
case(3):
{ //siwtch(desc_info.desc_index)
//{ case(0):{p_desc_type=string_descriptor;break;}
//case(1):{break;}
//case(2):{break;}
//}
break;
}
case(4):{p_desc_type=interface_descriptor;break;}
case(5):{p_desc_type=endpoint_descriptor;break;}
case(0x21):{p_desc_type=hid_descriptor;break;}//hid descriptor
case(0x22):{p_desc_type=report_descriptor;desc_info.desc_length=0x32;flag_report_input=1;break;}//report descriptor
// case(0x23):{p_desc_type=physical_descriptor;break;}//physical descriptor
}
CH37x_return_desc();
break;
}
case(DEF_USB_SET_DESCR):
{
CH37x_set_endp3(0x0f);//return stall
break;
}
case(DEF_USB_GET_CONFIG):
{
if(!flag_configured){ep0_data.data_buf[0]=0;CH37x_wr_usb_data3(1);}
else {ep0_data.data_buf[0]=configure_value;CH37x_wr_usb_data3(1);}
break;
}
case(DEF_USB_SET_CONFIG):
{
configure_value=ep0_data.data_buf[2];
flag_configured=1;
CH37x_wr_usb_data3(0);//
break;
}
//asm//從SET CONFIG 中得到CONFIG VALUE 返回ACK 保存，在GET CONFIG 中將CONFIG VALUE 返回，
case(DEF_USB_GET_INTERF):
{
ep0_data.data_buf[0]=0;//asm//返回數據0
CH37x_wr_usb_data3(1);
break;
}
case(DEF_USB_SET_INTERF):
{
CH37x_set_endp3(0x0f);//return stall
break;
}
case(DEF_USB_SYNC_FRAME):
{
CH37x_set_endp3(0x0f);//return stall
break;
}
default:{CH37x_set_endp3(0x0f);break;}//return stall
}
break;
}
case(1): //setup class request
{ /*switch(ep0_data.device_request.bRequest)
{ case(DEF_USB_HID_GET_REPORT):
{ switch(ep0_data.data_buf[3])
{ case(1): //report type is input
{ //flag_report_input=1;
report_input_length=0x32;//ep0_data.data_buf[7];
report_id=ep0_data.data_buf[2];
//CH37x_wr_usb_data3(0);
p_desc_type=report_descriptor;
CH37x_return_report();
break;
}
case(2):{CH37x_set_endp3(0x0f);break;} //report type is output
case(3):{CH37x_set_endp3(0x0f);break;} //report type is feature
}
// CH37x_wr_usb_data3(0);
LED4=0; break;
}
case(DEF_USB_HID_SET_REPORT):{LED5=0;CH37x_set_endp3(0x0f);break;}
case(DEF_USB_HID_GET_IDLE):{CH37x_set_endp3(0x0f);break;}//return stall
case(DEF_USB_HID_GET_PROTOCOL):{CH37x_set_endp3(0x0f);break;}//return stall
case(DEF_USB_HID_SET_IDLE):{CH37x_wr_usb_data3(0);break;}//return ack
case(DEF_USB_HID_SET_PROTOCOL):{CH37x_set_endp3(0x0f);break;}//return stall
}
LED7=0;test_temp=ep0_data.device_request.bRequest;*/ break;
}
case(2):CH37x_set_endp3(0x0f);break; //setup vendor request
case(3):CH37x_set_endp3(0x0f);break; //reserved request
default:{CH37x_set_endp3(0x0f);break;}//return stall
}
break;
}
case(USB_INT_EP0_OUT):break;
case(USB_INT_EP0_IN):
{
if(flag_return_desc)CH37x_return_desc();
else if (flag_set_add)
{
CH37x_set_usb_addr(usb_address);
flag_set_add=0;
}
else{}
break;
}
case(USB_INT_EP1_OUT):break;
case(USB_INT_EP1_IN):break;
case(USB_INT_EP2_OUT):break;
case(USB_INT_EP2_IN):break;
case(USB_INT_BUS_RESET1):{flag_configured=0;flag_return_desc=0;flag_set_add=0;flag_report_input=0;break;}
case(USB_INT_BUS_RESET2):{flag_configured=0;flag_return_desc=0;flag_set_add=0;flag_report_input=0;break;}
case(USB_INT_BUS_RESET3):{flag_configured=0;flag_return_desc=0;flag_set_add=0;flag_report_input=0;break;}
case(USB_INT_BUS_RESET4):{flag_configured=0;flag_return_desc=0;flag_set_add=0;flag_report_input=0;break;}
default:
{ //CH37x_set_endp3(0x0f);
break;//return stall
}
}
CH37x_unlock_usb();
}
void delay()
{;}
void delay20us()
{ UINT8 ms=40; //24MHz
while(ms--);
}
/*void delay1ms()
{ UINT8 ms,sm;
for ( ms=4; ms!=0; ms-- )
{ sm=250;
while(--sm);
}
}*/
void delayms(UINT8 delay)
{ UINT8 ms,sm,c;
for(ms=delay;ms!=0;ms--)
{ for(sm=200;sm!=0;sm--)c+=3; /* 在24MHz時鐘下延時500uS */
for(sm=200;sm!=0;sm--)c+=3; /* 在24MHz時鐘下延時500uS */
}
}
bit temp_bit;
void init_CH37x()
{ //flag_err_unknownsetup=0;
flag_return_desc=0;
flag_configured=0;
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