1、(oalintr.h)注冊串口中斷
//SP-A1
/*
打開oalintr.h文件，我們添加一個新的串口，并定義中斷號。
添加：
//SP-A8沒什么說的就是注冊中斷
#define SYSINTR_SERIAL1  (SYSINTR_FIRMWARE+19)

這里，我們可以看到SYSINTR_SERIAL1定義到16+19=35=0x23，與注冊表中一致。
然后修改下這個地方：
MapIrq2SysIntr(DWORD _Irq)
{
   if( _Irq<=19 )
       return ( SYSINTR_FIRMWARE + _Irq );
   else
       return (0xffffffff);
} 
*/

2、(armint.c)在ISR中進行中斷判斷，中斷使能
//SP-A2
/*
//SP-A9其中IntPendVal= s2410INT->rINTOFFSET
//INTOFFSET是中斷偏移寄存器，顯示中斷請求源，跟SRCPND一樣//在IRQ模式中，該寄存器顯示INTPND寄存器中的中斷請求

搜索：else if(IntPendVal == INTSRC_UART0)
在其后面添加：

 //SP-A10此處進行中斷請求源的判斷。INTSRC_UART1被定義為UART1的中斷號，即SRCPND==23
 else if(IntPendVal == INTSRC_UART1)
 {
   //SP-A11 SUBSRCPND中包含一些中斷請求的細節，對于串口就是INT_ERR、INT_RXD、INT_TXD
   //用于進一步判斷中斷類型
   SubIntPendVal = s2410INT->rSUBSRCPND;

   // Note that we only mask the sub source interrupt - the serial driver will clear the
   // sub source pending register.
   //
   //SP-A11.1如果是ERR1則該位置0，解除該位中斷屏蔽INTSUBMSK
   if(SubIntPendVal & INTSUB_ERR1)
   {
     s2410INT->rINTSUBMSK |= INTSUB_ERR1;
   }
   else if(SubIntPendVal & INTSUB_RXD1)  //SP-A11.2 RXD1，解除該位中斷屏蔽INTSUBMSK
   {
     s2410INT->rINTSUBMSK |= INTSUB_RXD1;
   }
   else if(SubIntPendVal & INTSUB_TXD1)  //SP-A11.3 TXD1,
   {
     s2410INT->rINTSUBMSK |= INTSUB_TXD1;
   }
   else
   {
     return(SYSINTR_NOP);   //SP-A11.4什么都沒發生
   }
 
   // NOTE: Don't clear INTSRC:UART1 here - serial driver does that.
   //
   //SP-A12解放對應位的總中斷屏蔽，此時中斷請求IRQ已經傳達給CPU
   s2410INT->rINTMSK |= BIT_UART1;

   //SP-A13 INTPND顯示哪個中斷處于非屏蔽且等待服務的狀態，即“該中斷被確定了（asserted 1）”，“相對于pending（待定）”
   //現在判斷完成，即“該中斷被確定了，所以向它發1，將之置0，清除中斷請求
   if (s2410INT->rINTPND & BIT_UART1) s2410INT->rINTPND  = BIT_UART1;

   //SP-A14向Wince發出對應的邏輯中斷處理請求
   return(SYSINTR_SERIAL1);
  
 }
*/

3、(cfw.c)在IST中進行對應中斷的使能和禁止
/*
//SP-A15此處是串行中斷初始化，將所有串行中斷屏蔽unmask,將所有串行中斷殘留pending清除。
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>
找到這一句：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;

//SP-A16此處是串行中斷禁止，即屏蔽所有串行中斷位
搜索：
void
OEMInterruptDisable(DWORD idInt)  // @parm Interrupt ID to be disabled. See <t Interrupt ID's>
還是這一句：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;

//SP-A17解除屏蔽？
搜索：
void
OEMInterruptDone(DWORD idInt)  // @parm Interrupt ID. See <t Interrupt ID's>
依舊找到case SYSINTR_SERIAL:
在其后面添加：

 case SYSINTR_SERIAL1:
   s2410INT->rINTMSK    &= ~BIT_UART1;
   s2410INT->rINTSUBMSK &= ~INTSUB_RXD1;
   break;

*/

4、(ser2410_hw.c)驅動程序進行處理
//SP-A4
/*
打開串口源文件中ser2410_hw.c文件。
搜索：
S2410_SetSerialIOP(
      PVOID   pHead // @parm points to device head
      )
將其函數改為：

{
 //SP-A18 2410串口信息結構體
 PS2410_UART_INFO   pHWHead   = (PS2410_UART_INFO)pHead;
 PSER_INFO     pHWHead1  = (PSER_INFO)pHead;

 RETAILMSG(DEBUGMODE, (TEXT("S2410_SetSerialIOP \r\n")));
 if(pHWHead1->dwIOBase == 0x50004000)  //SP-UART1 LINE CONTROL
 {
 #if USEVIRTUAL
   EnterCriticalSection(&(pHWHead->RegCritSec));
   v_pIOPregs->rGPHCON &= ~(0x3<<8 | 0x3<<10 /*| 0x3<<12 | 0x3<<14*/); // clear uart 1 - rx, tx
   v_pIOPregs->rGPHCON |= (0x2<<8 | 0x2<<10 /*| 0x1<<12 | 0x0<<14*/);
   v_pIOPregs->rGPHCON |= (0x2<<0 | 0x2<<2 );
   v_pIOPregs->rGPHUP  |= 0x03;
   pHWHead->rDTRport = (volatile unsigned int *)&(v_pIOPregs->rGPHDAT);
   pHWHead->rDSRport = (volatile unsigned int *)&(v_pIOPregs->rGPHDAT);
   pHWHead->DtrPortNum = 0;
   pHWHead->DsrPortNum = 1;
 #else
   volatile IOPreg *s2410IOP;
   s2410IOP   = (volatile IOPreg *)IOP_BASE;
 
   EnterCriticalSection(&(pHWHead->RegCritSec));
   //SP-A19 IO口設置
   s2410IOP->rGPHCON &= ~(0x3<<8 | 0x3<<10/* | 0x3<<12 | 0x3<<14*/); // clear uart 1 - rx, tx
   s2410IOP->rGPHCON |= (0x2<<8 | 0x2<<10 /*| 0x1<<12 | 0x0<<14*/);
   s2410IOP->rGPHCON |= (0x2<<0 | 0x2<<2 );
   s2410IOP->rGPHUP  |= 0x03;
   pHWHead->rDTRport = (volatile unsigned int *)(IOP_BASE+0x74); //s2410IOP->rGPHDAT
   pHWHead->rDSRport = (volatile unsigned int *)(IOP_BASE+0x74);
   pHWHead->DtrPortNum = 0;
   pHWHead->DsrPortNum = 1;
 #endif
 }
 else if(pHWHead1->dwIOBase == 0x50008000)  //SP-UART2 LINE CONTROL
 {
 #if USEVIRTUAL
   EnterCriticalSection(&(pHWHead->RegCritSec));
   v_pIOPregs->rGPHCON &= ~( 0x3<<12 | 0x3<<14); // clear uart 2 - rx, tx
   v_pIOPregs->rGPHCON |= ( 0x2<<12 | 0x2<<14);
   v_pIOPregs->rGPHCON |= (0x2<<0 | 0x2<<2 );
   v_pIOPregs->rGPHUP  &= ~0xc0;
   pHWHead->rDTRport = (volatile unsigned int *)&(v_pIOPregs->rGPHDAT);
   pHWHead->rDSRport = (volatile unsigned int *)&(v_pIOPregs->rGPHDAT);
   pHWHead->DtrPortNum = 0;
   pHWHead->DsrPortNum = 1;
 #else
   volatile IOPreg *s2410IOP;
   s2410IOP   = (volatile IOPreg *)IOP_BASE;
 
   EnterCriticalSection(&(pHWHead->RegCritSec));
   s2410IOP->rGPHCON &= ~(0x3<<12 | 0x3<<14); // clear uart 2 - rx, tx
   s2410IOP->rGPHCON |= ( 0x02<<12 | 0x02<<14);
   s2410IOP->rGPHCON |= (0x2<<0 | 0x2<<2 );
   s2410IOP->rGPHUP  &= ~0xc0;
   pHWHead->rDTRport = (volatile unsigned int *)(IOP_BASE+0x74); //s2410IOP->rGPHDAT
   pHWHead->rDSRport = (volatile unsigned int *)(IOP_BASE+0x74);
   pHWHead->DtrPortNum = 0;
   pHWHead->DsrPortNum = 1;
 #endif   
 }
 else       //SP-UART? LINE CONTROL
 {
 #if USEVIRTUAL
   EnterCriticalSection(&(pHWHead->RegCritSec));
   v_pIOPregs->rGPHCON &= ~(0x3<<0 | 0x3<<2 | 0x3<<4 | 0x3<<6/* | 0x3<<12 | 0x3<<14*/); // clear uart 0 - rx, tx
   v_pIOPregs->rGPHCON |= (0x2<<4 | 0x2<<6/* | 0x1<<12 | 0x0<<14*/);
   v_pIOPregs->rGPHCON |= (0x2<<0 | 0x2<<2 );
   v_pIOPregs->rGPHUP  |= 0x03;
   pHWHead->rDTRport = (volatile unsigned int *)&(v_pIOPregs->rGPHDAT);
   pHWHead->rDSRport = (volatile unsigned int *)&(v_pIOPregs->rGPHDAT);
   pHWHead->DtrPortNum = 0;
   pHWHead->DsrPortNum = 1;
 #else
   volatile IOPreg *s2410IOP;
   s2410IOP   = (volatile IOPreg *)IOP_BASE;
 
   EnterCriticalSection(&(pHWHead->RegCritSec));
   s2410IOP->rGPHCON &= ~(0x3<<0 | 0x3<<2 | 0x3<<4 | 0x3<<6 /*| 0x3<<12 | 0x3<<14*/); // clear uart 0 - rx, tx
   s2410IOP->rGPHCON |= (0x2<<4 | 0x2<<6 /*| 0x1<<12 | 0x0<<14*/);
   s2410IOP->rGPHCON |= (0x2<<0 | 0x2<<2 );
   s2410IOP->rGPHUP  |= 0x03;
   pHWHead->rDTRport = (volatile unsigned int *)(IOP_BASE+0x74); //s2410IOP->rGPHDAT
   pHWHead->rDSRport = (volatile unsigned int *)(IOP_BASE+0x74);
   pHWHead->DtrPortNum = 0;
   pHWHead->DsrPortNum =1;
 #endif
 }
 LeaveCriticalSection(&(pHWHead->RegCritSec));
}

接著搜索：
SL_Init(
      PVOID   pHead, // @parm points to device head
      PUCHAR  pRegBase, // Pointer to 16550 register base
      UINT8   RegStride, // Stride amongst the 16550 registers
      EVENT_FUNC EventCallback, // This callback exists in MDD
      PVOID   pMddHead,   // This is the first parm to callback
      PLOOKUP_TBL   pBaudTable  // BaudRate Table
      )
在PS2410_UART_INFO   pHWHead   = (PS2410_UART_INFO)pHead;這一句后面添加：

PSER_INFO     pHWHead1  = (PSER_INFO)pHead;

再搜索：
 if ( pHWHead->UseIrDA )
 {
   pHWHead->bINT = BIT_UART2;
   pHWHead->bTxINT = INTSUB_TXD2;
   pHWHead->bRxINT = INTSUB_RXD2;
   pHWHead->bErrINT = INTSUB_ERR2;
#if USEVIRTUAL
   pHWHead->s2410SerReg = (S2410_UART_REG *)v_pUART2regs;
   pRegBase = (PUCHAR)pHWHead->s2410SerReg;
#else   
   pRegBase = (PUCHAR)UART2_BASE;
   pHWHead->s2410SerReg = (S2410_UART_REG *)pRegBase;
#endif
 }
 else
 {
 把這其中的代碼修改為以下代碼
 }

   if(pHWHead1->dwIOBase == 0x50004000)
   {
     pHWHead->bINT = BIT_UART1;
     pHWHead->bTxINT = INTSUB_TXD1;
     pHWHead->bRxINT = INTSUB_RXD1;
     pHWHead->bErrINT = INTSUB_ERR1;
   #if USEVIRTUAL
     pHWHead->s2410SerReg = (S2410_UART_REG *)v_pUART1regs;
     pRegBase = (PUCHAR)pHWHead->s2410SerReg;
   #else   
     pRegBase = (PUCHAR)UART1_BASE;
     pHWHead->s2410SerReg = (S2410_UART_REG *)pRegBase;
   #endif
    
   }
   else if(pHWHead1->dwIOBase == 0x50008000)
   {
     pHWHead->bINT = BIT_UART2;
     pHWHead->bTxINT = INTSUB_TXD2;
     pHWHead->bRxINT = INTSUB_RXD2;
     pHWHead->bErrINT = INTSUB_ERR2;
   #if USEVIRTUAL
     pHWHead->s2410SerReg = (S2410_UART_REG *)v_pUART2regs;
     pRegBase = (PUCHAR)pHWHead->s2410SerReg;
   #else   
     pRegBase = (PUCHAR)UART2_BASE;
     pHWHead->s2410SerReg = (S2410_UART_REG *)pRegBase;
   #endif
   }
   else
   {
    
     pHWHead->bINT = BIT_UART0;
     pHWHead->bTxINT = INTSUB_TXD0;
     pHWHead->bRxINT = INTSUB_RXD0;
     pHWHead->bErrINT = INTSUB_ERR0;
   #if USEVIRTUAL
     pHWHead->s2410SerReg = (S2410_UART_REG *)v_pUART0regs;
     pRegBase = (PUCHAR)pHWHead->s2410SerReg;
   #else   
     pRegBase = (PUCHAR)UART0_BASE;
     pHWHead->s2410SerReg = (S2410_UART_REG *)pRegBase;
   #endif
   }

再搜索：
 if ( pHWHead->UseIrDA )
 {
   pHWHead->pUFTXH = (volatile unsigned char *)&(v_pUART2regs->rUTXH);
   pHWHead->pUFRXH = (volatile unsigned char *)&(v_pUART2regs->rURXH);   
 }
 else
 {
 把這其中的代碼修改為以下代碼
 }

   if(pHWHead1->dwIOBase == 0x50004000)
   {
     pHWHead->pUFTXH = (volatile unsigned char *)&(v_pUART1regs->rUTXH);
     pHWHead->pUFRXH = (volatile unsigned char *)&(v_pUART1regs->rURXH);
   }
   else if(pHWHead1->dwIOBase == 0x50008000)
   {
     pHWHead->pUFTXH = (volatile unsigned char *)&(v_pUART2regs->rUTXH);
     pHWHead->pUFRXH = (volatile unsigned char *)&(v_pUART2regs->rURXH);      
   }
   else
   {
     pHWHead->pUFTXH = (volatile unsigned char *)&(v_pUART0regs->rUTXH);
     pHWHead->pUFRXH = (volatile unsigned char *)&(v_pUART0regs->rURXH);   
   }

*/

5、(ser2410_ser.c)驅動程序進一步處理
//SP-A4
*/
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
};

接著搜索：
const PCHWOBJ HWObjects[] = {
 &IoObj,
 &IrObj
};
將其修改為：

const PCHWOBJ HWObjects[] = {
 &IoObj,
 &Io1Obj,
 &Io2Obj
};

再搜索：
GetSerialObject(
              DWORD DeviceArrayIndex
              )
將其函數改為：

{
 PHWOBJ pSerObj;

 DEBUGMSG(DEBUGMODE,(TEXT("GetSerialObject : DeviceArrayIndex = %d\r\n"), DeviceArrayIndex));

 // Now return this structure to the MDD.
 if ( DeviceArrayIndex == 2 )
 { 
   RETAILMSG(1,(TEXT("GetSerialObject Io2Obj\r\n")));
   pSerObj = (PHWOBJ)(&Io2Obj);
 }
 else if(DeviceArrayIndex == 1)
   pSerObj = (PHWOBJ)(&Io1Obj);
 else
   pSerObj = (PHWOBJ)(&IoObj);

 return (pSerObj);
}
*/

6、在CEC中增加特性
//SP-A6
/*
添加UART1這個feature。
搜索
ComponentType
(
 Name ( "Serial" )
 GUID ( {6563AD6C-E71C-11D4-B892-0050FC049781} )
 MaxResolvedImpsAllowed( 999 )
 Implementations
 (
   Implementation
   (
     Name ( "S32410 Serial UART" )
在其后面添加：

   Implementation 
   (
     Name ( "S32410 Serial UART1" )
     GUID ( {7C4427A5-286C-4C7A-B687-4E3B364D079B} )
     Description ( "Samsung S32410 serial UART controller." )
     BSPPlatformDir ( "smdk2410" )
     Version ( "5.0.0.0" )
     Locale ( 0409 )
     Vendor ( "Microsoft" )
     Date ( "2003-1-13" )
     SizeIsCPUDependent( 1 )
     BuildMethods
     (
       BuildMethod
       (
         GUID ( {07DA2083-6261-4ED6-B5BB-70CF4D930D68} )
         Step ( BSP )
         CPU ( "ARMV4" )
         CPU ( "ARMV4I" )
         Action ( '#BUILD(SOURCES,"$(_WINCEROOT)\PLATFORM\SMDK2410\drivers\serial")')
        )
     )
   )
*/

7、修改注冊表
//SP-A7
/*
打開platform.reg文件，這個是WinCE注冊表文件，在這里，我們要修改并添加串口。
搜索：[HKEY_LOCAL_MACHINE\Drivers\BuiltIn\SER2410]，這就是串口1。
將其下面的鍵值改為：

[HKEY_LOCAL_MACHINE\Drivers\BuiltIn\SER2410]
  "DeviceArrayIndex"=dword:0
  "Irq"=dword:13
  "IoBase"=dword:50000000
  "IoLen"=dword:2C
  "Prefix"="COM"
  "Dll"="SER2410.Dll"
  "Order"=dword:0
  "Priority"=dword:0
  "Port"="COM1:"
  "DeviceType"=dword:0
  "FriendlyName"="Serial Cable on COM1:"
  "Tsp"="Unimodem.dll"
  "DevConfig"=hex: 10,00, 00,00, 05,00,00,00, 10,01,00,00, 00,4B,00,00, 00,00, 08, 00, 00, 00,00,00,00

再在其后面添加串口2：

[HKEY_LOCAL_MACHINE\Drivers\BuiltIn\SER2410_2]
  "DeviceArrayIndex"=dword:1
  "Irq"=dword:23
  "IoBase"=dword:50004000
  "IoLen"=dword:2C
  "Prefix"="COM"
  "Dll"="SER2410.Dll"
  "Order"=dword:1
  "Priority"=dword:0
  "Port"="COM2:"
  "DeviceType"=dword:0
  "FriendlyName"="Serial Cable on COM2:"
  "Tsp"="Unimodem.dll"
  "DevConfig"=hex: 10,00, 00,00, 05,00,00,00, 10,01,00,00, 00,4B,00,00, 00,00, 08, 00, 00, 00,00,00,00

[HKEY_LOCAL_MACHINE\Drivers\BuiltIn\SER2410_2\Unimodem]
  "Tsp"="Unimodem.dll"
  "DeviceType"=dword:0
  "FriendlyName"="SER2410_2 UNIMODEM"
  "DevConfig"=hex: 10,00, 00,00, 05,00,00,00, 10,01,00,00, 00,4B,00,00, 00,00, 08, 00, 00, 00,00,00,00

再搜索：[HKEY_LOCAL_MACHINE\Drivers\BuiltIn\IRDA2410]，這個是紅外，也要修改下：

[HKEY_LOCAL_MACHINE\Drivers\BuiltIn\IRDA2410]
  "DeviceArrayIndex"=dword:2
  "Irq"=dword:19
  "IoBase"=dword:50008000
  "IoLen"=dword:2C
  "Prefix"="COM"
  "Dll"="IRDA2410.Dll"
  "Order"=dword:0
  "Priority"=dword:0
  "Port"="COM3:"
  "DeviceType"=dword:0  ; IRDA modem, 0 -> null modem
  "FriendlyName"="S2410 IRDA2410"
  "Index"=dword:2
  "IClass"="{A32942B7-920C-486b-B0E6-92A702A99B35}"

好了，注冊表就改到這里，以上要特別注意Irq的值，要和oalintr.h里面的中斷定義對應，并且注意Order的順序，DeviceArrayIndex的值以及IoBase，后面串口源代碼中要用到該值作判斷。

*/