S3C2410的WINCE BSP添加串口支持 04

samwalton

4、打开ser2410_ser.c文件。
搜索：
const HWOBJ IoObj = {
THREAD_AT_INIT,
SYSINTR_SERIAL,
(PHW_VTBL) &IoVTbl
};
在其后面添加：
const HWOBJ Io1Obj = {
THREAD_AT_INIT,
SYSINTR_SERIAL1,
(PHW_VTBL) &IoVTbl
};
const HWOBJ Io2Obj = {
THREAD_AT_INIT,
SYSINTR_IR,
(PHW_VTBL) &IoVTbl
};
接着搜索：
const PCHWOBJ HWObjects[] = {
&IoObj,
&IrObj
};
将其修改为：
const PCHWOBJ HWObjects[] = {
&IoObj,
&Io1Obj,
&Io2Obj
};
再搜索：
GetSerialObject(
DWORD DeviceArrayIndex
)
将其函数改为：
{
PHWOBJ pSerObj;
DEBUGMSG(DEBUGMODE,(TEXT("GetSerialObject : DeviceArrayIndex = %d "), DeviceArrayIndex));
// Now return this structure to the MDD.
if ( DeviceArrayIndex == 2 )
{
RETAILMSG(1,(TEXT("GetSerialObject Io2Obj ")));
pSerObj = (PHWOBJ)(&Io2Obj);
}
else if(DeviceArrayIndex == 1)
pSerObj = (PHWOBJ)(&Io1Obj);
else
pSerObj = (PHWOBJ)(&IoObj);
return (pSerObj);
}
5、打开cfw.c文件，这就是中断处理。
搜索：
BOOL
OEMInterruptEnable(DWORD idInt, // @parm Interrupt ID to be enabled. See <l Interrupt ID's.Interrupt ID's> for a list of possble values.
LPVOID pvData, // @parm ptr to data passed in in the <f InterruptInitialize> call
DWORD cbData) // @parm Size of data pointed to be <p pvData>
找到这一句：case SYSINTR_SERIAL:
在其后面添加：
case SYSINTR_SERIAL1: // Serial port1.
s2410INT->rSUBSRCPND = (INTSUB_RXD1 | INTSUB_TXD1 | INTSUB_ERR1);
s2410INT->rINTSUBMSK &= ~INTSUB_RXD1;
s2410INT->rINTSUBMSK &= ~INTSUB_TXD1;
s2410INT->rINTSUBMSK &= ~INTSUB_ERR1;
s2410INT->rSRCPND = BIT_UART1;
// S3C2410X Developer Notice (page 4) warns against writing a 1 to a 0 bit in the INTPND register.
if (s2410INT->rINTPND & BIT_UART1) s2410INT->rINTPND = BIT_UART1;
s2410INT->rINTMSK &= ~BIT_UART1;
break;
搜索：
void
OEMInterruptDisable(DWORD idInt) // @parm Interrupt ID to be disabled. See <t Interrupt ID's>
还是这一句：case SYSINTR_SERIAL:
在其后面添加：
case SYSINTR_SERIAL1:
s2410INT->rINTMSK |= BIT_UART1;
s2410INT->rINTSUBMSK |= INTSUB_RXD1;
s2410INT->rINTSUBMSK |= INTSUB_TXD1;
s2410INT->rINTSUBMSK |= INTSUB_ERR1;
break;