📄 usbsetup.c
字号:
if((descSetup.bIndexL & 0x8f) == 0x81){ //get ep1 status
ep0State=EP0_GET_STATUS3;
}
if((descSetup.bIndexL & 0x8f) == 0x03){ //get ep3 status
ep0State=EP0_GET_STATUS4;
}
break;
default:
break;
}
break;
case SET_DESCRIPTOR: //set descriptor request
CLR_EP0_OUTPKTRDY_DATAEND();
ep0State=EP0_STATE_INIT;
break;
case SET_FEATURE: //set feature request
switch (descSetup.bmRequestType)
{
case DEVICE_RECIPIENT: //set device recipient
if (descSetup.bValueL == 1)
Rwuen = TRUE;
break;
case ENDPOINT_RECIPIENT: //set endpoint recipient
if (descSetup.bValueL == 0)
{
if((descSetup.bIndexL & 0x7f) == 0x00){
StatusGet.Endpoint0= 1;
}
if((descSetup.bIndexL & 0x8f) == 0x81){
StatusGet.Endpoint1= 1;
}
if((descSetup.bIndexL & 0x8f) == 0x03){
StatusGet.Endpoint3= 1;
}
}
break;
default:
break;
}
CLR_EP0_OUTPKTRDY_DATAEND();
ep0State=EP0_STATE_INIT;
break;
case SET_INTERFACE: //set interface request
InterfaceGet.AlternateSetting= descSetup.bValueL;
CLR_EP0_OUTPKTRDY_DATAEND();
ep0State=EP0_STATE_INIT;
break;
case SYNCH_FRAME: //no use in this case
ep0State=EP0_STATE_INIT;
break;
//////////////////////////////////////////////////////////////
default:
CLR_EP0_OUTPKTRDY_DATAEND(); //Because of no data control transfers.
ep0State=EP0_STATE_INIT;
break;
}
}
switch(ep0State)
{
case EP0_STATE_INIT:
break;
//=== GET_DESCRIPTOR:DEVICE ===
case EP0_STATE_GD_DEV_0: //send device descriptor to host by three times
WrPktEp0((U8 *)&descDev+0,8); //EP0_PKT_SIZE
SET_EP0_IN_PKT_RDY();
ep0State=EP0_STATE_GD_DEV_1;
break;
case EP0_STATE_GD_DEV_1:
WrPktEp0((U8 *)&descDev+0x8,8);
SET_EP0_IN_PKT_RDY();
ep0State=EP0_STATE_GD_DEV_2;
break;
case EP0_STATE_GD_DEV_2:
WrPktEp0((U8 *)&descDev+0x10,2); //8+8+2=0x12
SET_EP0_INPKTRDY_DATAEND();
ep0State=EP0_STATE_INIT;
break;
//=== GET_DESCRIPTOR:CONFIGURATION+INTERFACE+ENDPOINT0+ENDPOINT1 ===
//Windows98 gets these 4 descriptors all together by issuing only a request.
//Windows2000 gets each descriptor seperately.
case EP0_STATE_GD_CFG_0:
WrPktEp0((U8 *)&descConf+0,8); //EP0_PKT_SIZE
SET_EP0_IN_PKT_RDY();
ep0State=EP0_STATE_GD_CFG_1;
break;
case EP0_STATE_GD_CFG_1:
WrPktEp0((U8 *)&descConf+8,1);
WrPktEp0((U8 *)&descIf+0,7);
SET_EP0_IN_PKT_RDY();
ep0State=EP0_STATE_GD_CFG_2;
break;
case EP0_STATE_GD_CFG_2:
WrPktEp0((U8 *)&descIf+7,2);
WrPktEp0((U8 *)&descEndpt0+0,6);
SET_EP0_IN_PKT_RDY();
ep0State=EP0_STATE_GD_CFG_3;
break;
case EP0_STATE_GD_CFG_3:
WrPktEp0((U8 *)&descEndpt0+6,1);
WrPktEp0((U8 *)&descEndpt1+0,7);
SET_EP0_IN_PKT_RDY();
ep0State=EP0_STATE_GD_CFG_4;
break;
case EP0_STATE_GD_CFG_4:
//zero length data packit
SET_EP0_INPKTRDY_DATAEND();
ep0State=EP0_STATE_INIT;
break;
//=== GET_DESCRIPTOR:CONFIGURATION ONLY===
case EP0_STATE_GD_CFG_ONLY_0:
WrPktEp0((U8 *)&descConf+0,8); //EP0_PKT_SIZE
SET_EP0_IN_PKT_RDY();
ep0State=EP0_STATE_GD_CFG_ONLY_1;
break;
case EP0_STATE_GD_CFG_ONLY_1:
WrPktEp0((U8 *)&descConf+8,1);
SET_EP0_INPKTRDY_DATAEND();
ep0State=EP0_STATE_INIT;
break;
//=== GET_DESCRIPTOR:INTERFACE ONLY===
case EP0_STATE_GD_IF_ONLY_0:
WrPktEp0((U8 *)&descIf+0,8);
SET_EP0_IN_PKT_RDY();
ep0State=EP0_STATE_GD_IF_ONLY_1;
break;
case EP0_STATE_GD_IF_ONLY_1:
WrPktEp0((U8 *)&descIf+8,1);
SET_EP0_INPKTRDY_DATAEND();
ep0State=EP0_STATE_INIT;
break;
//=== GET_DESCRIPTOR:ENDPOINT 0 ONLY===
case EP0_STATE_GD_EP0_ONLY_0:
WrPktEp0((U8 *)&descEndpt0+0,7);
SET_EP0_INPKTRDY_DATAEND();
ep0State=EP0_STATE_INIT;
break;
//=== GET_DESCRIPTOR:ENDPOINT 1 ONLY===
case EP0_STATE_GD_EP1_ONLY_0:
WrPktEp0((U8 *)&descEndpt1+0,7);
SET_EP0_INPKTRDY_DATAEND();
ep0State=EP0_STATE_INIT;
break;
////////////////////////////////////////////
case EP0_INTERFACE_GET: //send interface descriptor to host
WrPktEp0((U8 *)&InterfaceGet+0,1);
SET_EP0_INPKTRDY_DATAEND();
ep0State=EP0_STATE_INIT;
break;
//=== GET_DESCRIPTOR:STRING ===
case EP0_STATE_GD_STR_I0: //send string0 descriptor to host
WrPktEp0((U8 *)descStr0, 4 );
SET_EP0_INPKTRDY_DATAEND();
ep0State=EP0_STATE_INIT;
ep0SubState=0;
break;
case EP0_STATE_GD_STR_I1: //send string1 descriptor to host
if( (ep0SubState*EP0_PKT_SIZE+EP0_PKT_SIZE)<sizeof(descStr1) )
{
WrPktEp0((U8 *)descStr1+(ep0SubState*EP0_PKT_SIZE),EP0_PKT_SIZE);
SET_EP0_IN_PKT_RDY();
ep0State=EP0_STATE_GD_STR_I1;
ep0SubState++;
}
else
{
WrPktEp0((U8 *)descStr1+(ep0SubState*EP0_PKT_SIZE),
sizeof(descStr1)-(ep0SubState*EP0_PKT_SIZE));
SET_EP0_INPKTRDY_DATAEND();
ep0State=EP0_STATE_INIT;
ep0SubState=0;
}
break;
case EP0_STATE_GD_STR_I2: //send string2 descriptor to host
if( (ep0SubState*EP0_PKT_SIZE+EP0_PKT_SIZE)<sizeof(descStr2) )
{
WrPktEp0((U8 *)descStr2+(ep0SubState*EP0_PKT_SIZE),EP0_PKT_SIZE);
SET_EP0_IN_PKT_RDY();
ep0State=EP0_STATE_GD_STR_I2;
ep0SubState++;
}
else
{
WrPktEp0((U8 *)descStr2+(ep0SubState*EP0_PKT_SIZE),
sizeof(descStr2)-(ep0SubState*EP0_PKT_SIZE));
SET_EP0_INPKTRDY_DATAEND();
ep0State=EP0_STATE_INIT;
ep0SubState=0;
}
break;
case EP0_CONFIG_SET: //set config DESCRIPTOR
WrPktEp0((U8 *)&ConfigSet+0,1);
SET_EP0_INPKTRDY_DATAEND();
ep0State=EP0_STATE_INIT;
break;
case EP0_GET_STATUS0: //send device status to host
WrPktEp0((U8 *)&StatusGet+0,1);
SET_EP0_INPKTRDY_DATAEND();
ep0State=EP0_STATE_INIT;
break;
case EP0_GET_STATUS1: //send config status
WrPktEp0((U8 *)&StatusGet+1,1);
SET_EP0_INPKTRDY_DATAEND();
ep0State=EP0_STATE_INIT;
break;
case EP0_GET_STATUS2: //send ep0 status
WrPktEp0((U8 *)&StatusGet+2,1);
SET_EP0_INPKTRDY_DATAEND();
ep0State=EP0_STATE_INIT;
break;
case EP0_GET_STATUS3: //send ep1 status
WrPktEp0((U8 *)&StatusGet+3,1);
SET_EP0_INPKTRDY_DATAEND();
ep0State=EP0_STATE_INIT;
break;
case EP0_GET_STATUS4: //send ep3 status
WrPktEp0((U8 *)&StatusGet+4,1);
SET_EP0_INPKTRDY_DATAEND();
ep0State=EP0_STATE_INIT;
break;
default:
break;
}
}
/*************************************************************************/
/* */
/* FUNCTION */
/* */
/* InitDescriptorTable */
/* */
/* DESCRIPTION */
/* */
/* Init descriptor table */
/* */
/* AUTHOR */
/* */
/* Zhi-gang Yang shenzhen watertek */
/* */
/* INPUTS */
/* None */
/* */
/* OUTPUTS */
/* */
/* None */
/* */
/* HISTORY */
/* */
/* DATE REMARKS */
/* */
/* 2004-12-28 Created initial version 1.0 */
/*************************************************************************/
void InitDescriptorTable(void)
{
//Standard device descriptor
descDev.bLength=0x12; //EP0_DEV_DESC_SIZE=0x12 bytes
descDev.bDescriptorType=DEVICE_TYPE;
descDev.bcdUSBL=0x10;
descDev.bcdUSBH=0x01; //Ver 1.10
descDev.bDeviceClass=0xFF; //0x0
descDev.bDeviceSubClass=0x0;
descDev.bDeviceProtocol=0x0;
descDev.bMaxPacketSize0=0x8;
descDev.idVendorL=0x45;
descDev.idVendorH=0x53;
descDev.idProductL=0x34;
descDev.idProductH=0x12;
descDev.bcdDeviceL=0x00;
descDev.bcdDeviceH=0x01;
descDev.iManufacturer=0x1; //index of string descriptor
descDev.iProduct=0x2; //index of string descriptor
descDev.iSerialNumber=0x0;
descDev.bNumConfigurations=0x1;
//Standard configuration descriptor
descConf.bLength=0x9;
descConf.bDescriptorType=CONFIGURATION_TYPE;
descConf.wTotalLengthL=0x20; //<cfg desc>+<if desc>+<endp0 desc>+<endp1 desc>
descConf.wTotalLengthH=0;
descConf.bNumInterfaces=1;
//dbg descConf.bConfigurationValue=2; //why 2? There's no reason.
descConf.bConfigurationValue=1;
descConf.iConfiguration=0;
descConf.bmAttributes=CONF_ATTR_DEFAULT|CONF_ATTR_SELFPOWERED; //bus powered only.
descConf.maxPower=25; //draws 50mA current from the USB bus.
//Standard interface descriptor
descIf.bLength=0x9;
descIf.bDescriptorType=INTERFACE_TYPE;
descIf.bInterfaceNumber=0x0;
descIf.bAlternateSetting=0x0; //?
descIf.bNumEndpoints=2; //# of endpoints except EP0
descIf.bInterfaceClass=0xff; //0x0 ?
descIf.bInterfaceSubClass=0x0;
descIf.bInterfaceProtocol=0x0;
descIf.iInterface=0x0;
//Standard endpoint0 descriptor
descEndpt0.bLength=0x7;
descEndpt0.bDescriptorType=ENDPOINT_TYPE;
descEndpt0.bEndpointAddress=1|EP_ADDR_IN; // 2400Xendpoint 1 is IN endpoint.
descEndpt0.bmAttributes=EP_ATTR_BULK;
descEndpt0.wMaxPacketSizeL=EP1_PKT_SIZE; //64
descEndpt0.wMaxPacketSizeH=0x0;
descEndpt0.bInterval=0x0; //not used
//Standard endpoint1 descriptor
descEndpt1.bLength=0x7;
descEndpt1.bDescriptorType=ENDPOINT_TYPE;
descEndpt1.bEndpointAddress=3|EP_ADDR_OUT; // 2400X endpoint 3 is OUT endpoint.
descEndpt1.bmAttributes=EP_ATTR_BULK;
descEndpt1.wMaxPacketSizeL=EP3_PKT_SIZE; //64
descEndpt1.wMaxPacketSizeH=0x0;
descEndpt1.bInterval=0x0; //not used
}
⌨️ 快捷键说明
复制代码
Ctrl + C
搜索代码
Ctrl + F
全屏模式
F11
切换主题
Ctrl + Shift + D
显示快捷键
?
增大字号
Ctrl + =
减小字号
Ctrl + -