📄 usbd_ep0.c.svn-base
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#include "usbd.h"
#include "usb.h"
#ifdef _DEBUG
#include <stdio.h>
#endif /* _DEBUG */
struct USB_SETUP_DATA setup_data;
struct USB_DEVICE_DESCRIPTOR device_desc;
struct USB_CONFIGURATION_DESCRIPTOR config_desc;
struct USB_INTERFACE_DESCRIPTOR interface_desc;
struct USB_ENDPOINT_DESCRIPTOR ep_in_desc,ep_out_desc;
struct USB_CONFIGURATION_SET config_set;
struct USB_INTERFACE_GET interface_get;
struct USB_GET_STATUS get_status;
/*Clear EP0 Out Packet Ready*/
#define CLR_EP0_OUT_PKT_RDY() EP0_CSR = ( ep0_csr & (~EP0_WR_BITS) | \
EP0_SERVICED_OUT_PKT_RDY )
/*Clear EP0 Packet 0*/
#define CLR_EP0_OUTPKTRDY_DATAEND() EP0_CSR = ( ep0_csr & (~EP0_WR_BITS) | \
(EP0_SERVICED_OUT_PKT_RDY|EP0_DATA_END) )
/*Set EP0 IN Packet Ready*/
#define SET_EP0_IN_PKT_RDY() EP0_CSR = ( ep0_csr & (~EP0_WR_BITS) | \
(EP0_IN_PKT_READY) )
/*Send Packet 0*/
#define SET_EP0_INPKTRDY_DATAEND() EP0_CSR = ( ep0_csr & (~EP0_WR_BITS) | \
(EP0_IN_PKT_READY|EP0_DATA_END) )
/*Clear EP0 Setup End Tag*/
#define CLR_EP0_SETUP_END() EP0_CSR = ( ep0_csr & (~EP0_WR_BITS) | \
(EP0_SERVICED_SETUP_END) )
/*Clear EP0 Sent Stall Tag(host ---->mcu)*/
#define CLR_EP0_SENT_STALL() EP0_CSR = ( ep0_csr & (~EP0_WR_BITS) & \
(~EP0_SENT_STALL) )
/*Flush EP0 Fifo*/
#define FLUSH_EP0_FIFO() {while(OUT_FIFO_CNT1_REG) EP0_FIFO;}
void init_descriptor(void)
{
/*standard device descriptor*/
device_desc.bLength =0x12;
device_desc.bDescriptorType =DEVICE_TYPE;
device_desc.bcdUSBL =0x10;
device_desc.bcdUSBH =0x01;
device_desc.bDeviceClass =0xFF;
device_desc.bDeviceSubClass =0x0;
device_desc.bDeviceProtocol =0x0;
device_desc.bMaxPacketSize0 =0x8;
device_desc.idVendorL =0x45;//C0;//5c;//51;//9f;//45;
device_desc.idVendorH =0x53;//16;//05;//09;//04;//53;
device_desc.idProductL =0x34;//Dc;//00;//03;//50;//34;
device_desc.idProductH =0x12;//05;//21;//16;//52;//12;
device_desc.bcdDeviceL =0x00;
device_desc.bcdDeviceH =0x01;
device_desc.iManufacturer =0x0;
device_desc.iProduct =0x0;
device_desc.iSerialNumber =0x0;
device_desc.bNumConfigurations =0x1;
/*standard configuration descriptor*/
config_desc.bLength =0x9;
config_desc.bDescriptorType =CONFIGURATION_TYPE;
config_desc.wTotalLengthL =0x20;
config_desc.wTotalLengthH =0;
config_desc.bNumInterfaces =1;
config_desc.bConfigurationValue =1;
config_desc.iConfiguration =0;
config_desc.bmAttributes =CONF_ATTR_DEFAULT|CONF_ATTR_SELFPOWERED;
config_desc.maxPower =25;
/*standard interface descriptor*/
interface_desc.bLength =0x9;
interface_desc.bDescriptorType =INTERFACE_TYPE;
interface_desc.bInterfaceNumber =0x0;
interface_desc.bAlternateSetting =0x0;
interface_desc.bNumEndpoints =0x0;
interface_desc.bInterfaceClass =0xFF;
interface_desc.bInterfaceSubClass=0x0;
interface_desc.bInterfaceProtocol=0x0;
interface_desc.iInterface =0x0;
/*standard endpoint mode_in descriptor*/
ep_in_desc.bLength=0x7;
ep_in_desc.bDescriptorType=ENDPOINT_TYPE;
ep_in_desc.bEndpointAddress=1|EP_MODE_IN;
ep_in_desc.bmAttributes=EP_ATTR_BULK;
ep_in_desc.wMaxPacketSizeL=EP1_PKT_SIZE;
ep_in_desc.wMaxPacketSizeH=0x0;
ep_in_desc.bInterval=0x0; //not used
/*standard endpoint mode_out descriptor*/
ep_out_desc.bLength=0x7;
ep_out_desc.bDescriptorType=ENDPOINT_TYPE;
ep_out_desc.bEndpointAddress=3|EP_MODE_OUT;
ep_out_desc.bmAttributes=EP_ATTR_BULK;
ep_out_desc.wMaxPacketSizeL=EP3_PKT_SIZE;
ep_out_desc.wMaxPacketSizeH=0x0;
ep_out_desc.bInterval=0x0; //not used
}
void
ep0_handler()
{
unsigned char ep0_csr;
INDEX_REG = 0;
ep0_csr = EP0_CSR;
if(ep0_csr & EP0_SETUP_END)
{
CLR_EP0_SETUP_END();
if(ep0_csr & EP0_OUT_PKT_READY)
{
FLUSH_EP0_FIFO();
CLR_EP0_OUT_PKT_RDY();
}
return;
}
if(ep0_csr & EP0_SENT_STALL)
{
CLR_EP0_SENT_STALL();
if(ep0_csr & EP0_OUT_PKT_READY)
{
CLR_EP0_OUT_PKT_RDY();
}
return;
}
/*deal with setup packet*/
if(ep0_csr & EP0_OUT_PKT_READY)
{
read_pkt_ep0(( unsigned char *) &setup_data, EP0_PKT_SIZE);
#ifdef _DEBUG
printf("%x %x %x %x %x %x %x %x\n", setup_data.bLengthH, setup_data.bLengthL,
setup_data.bIndexH, setup_data.bIndexL,
setup_data.bValueH, setup_data.bValueL,
setup_data.bRequest, setup_data.bmRequestType);
#endif /* _DEBUG */
switch(setup_data.bRequest)
{
case GET_DESCRIPTOR:
//printf("GET_DESCRIPTOR\n");
switch(setup_data.bValueH)
{
case DEVICE_TYPE: //device descriptor
//printf("DEVICE_TYPE\n");
CLR_EP0_OUT_PKT_RDY();
if(setup_data.bLengthL == 0x40)
{
write_pkt_ep0((unsigned char *) &device_desc + 0, 8);
SET_EP0_IN_PKT_RDY();
}
/*after we get the new address, we should response to GET_DESCRIPTOR with the whole device_desc.*/
else if(setup_data.bLengthL == 0x12)
{
write_pkt_ep0((unsigned char *) &device_desc + 0, 8);
SET_EP0_IN_PKT_RDY();
delay(1);
write_pkt_ep0((unsigned char *) &device_desc + 0x8, 8);
SET_EP0_IN_PKT_RDY();
delay(1);
write_pkt_ep0((unsigned char *) &device_desc + 0x10, 2);
SET_EP0_IN_PKT_RDY();
SET_EP0_INPKTRDY_DATAEND();
}
else
{
printf("setup_data.bLengthL error\n");
}
break;
case CONFIGURATION_TYPE: //configuration descriptor
CLR_EP0_OUT_PKT_RDY();
if((setup_data.bLengthL + (setup_data.bLengthH << 8)) > 0x9)
{
printf("win98\n");
write_pkt_ep0((unsigned char *) &config_desc + 0, 8); //EP0_PKT_SIZE
SET_EP0_IN_PKT_RDY();
delay(1);
write_pkt_ep0((unsigned char *) &config_desc + 8, 1);
write_pkt_ep0((unsigned char *) &interface_desc + 0, 7);
SET_EP0_IN_PKT_RDY();
delay(1);
write_pkt_ep0((unsigned char *) &interface_desc + 7, 2);
write_pkt_ep0((unsigned char *) &ep_in_desc + 0, 6);
SET_EP0_IN_PKT_RDY();
delay(1);
write_pkt_ep0((unsigned char *) &ep_in_desc + 6, 1);
write_pkt_ep0((unsigned char *) &ep_out_desc + 0, 7);
SET_EP0_IN_PKT_RDY();
delay(1);//如果在这里不delay一下，是要出错的
SET_EP0_INPKTRDY_DATAEND();
}
else
{
printf("win2000\n");
write_pkt_ep0((unsigned char *) &config_desc + 0, 8); //EP0_PKT_SIZE
SET_EP0_IN_PKT_RDY();
delay(1);
write_pkt_ep0((unsigned char *) &config_desc + 8, 1);
SET_EP0_IN_PKT_RDY();
SET_EP0_INPKTRDY_DATAEND();
}
//printf("CONFIGURATION_TYPE\n");
break;
case STRING_TYPE: //string descriptor /*XXX*/
printf("STRING_TYPE\n");
CLR_EP0_OUTPKTRDY_DATAEND();
break;
case INTERFACE_TYPE:
printf("INTERFACE_TYPE\n");
break;
case ENDPOINT_TYPE:
printf("ENDPOINT_TYPE\n");
break;
default:
break;
}
break;
case SET_ADDRESS:
//printf("SET_ADDRESS\n");
CLR_EP0_OUT_PKT_RDY();
FUNC_ADDR_REG=setup_data.bValueL | 0x80;
//printf("SET_ADDRESS %x\n", setup_data.bValueL | 0x80);
CLR_EP0_OUTPKTRDY_DATAEND(); //Because of no data control transfers.
break;
case SET_CONFIGURATION:
config_set.bConfigurationValue=setup_data.bValueL;
CLR_EP0_OUTPKTRDY_DATAEND(); //Because of no data control transfers.
printf("SET_CONFIGURATION\n");
break;
case CLEAR_FEATURE:
printf("CLEAR_FEATURE\n");
break;
case GET_CONFIGURATION:
printf("GET_CONFIGURATION\n");
break;
case GET_INTERFACE:
printf("GET_INTERFACE\n");
break;
case GET_STATUS:
printf("GET_STATUS\n");
break;
case SET_DESCRIPTOR:
printf("SET_DESCRIPTOR\n");
break;
case SET_FEATURE:
printf("SET_FEATURE\n");
break;
case SET_INTERFACE:
printf("SET_INTERFACE\n");
break;
case SYNCH_FRAME:
printf("SYNCH_FRAME\n");
break;
default:
break;
}
}
}
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