s3c2410增加三串口

  需要修改oalintr.h cfw.c armint.c 在里面添加相应的中断，复制uart0的就可以了。然后在ser2410_ser.c参考uart0建立其他两个串口的函数表。在 ser2410_hw.c里面修改S2410_SetSerialIOP以及SL_Init两个函数就可以了，具体就是根据iobase不同对串口寄存器 进行操作，完全可以参考uart0的就ok了，最后还得改注册表，也是参考uart0的，改一下中断号以及iobase就ok了。

ser2410_ser.c修改处：

const
HW_VTBL IoVTbl = {
  SerInitSerial1,
  SL_PostInit,
  SerDeinit,
  SerOpen,
  SerClose,
  SL_GetInterruptType,
  SL_RxIntr,
  SL_TxIntr,
  SL_ModemIntr,
  SL_LineIntr,
  SL_GetRxBufferSize,
  SerPowerOff,
  SerPowerOn,
  SL_ClearDTR,
  SL_SetDTR,
  SL_ClearRTS,
  SL_SetRTS,
  SerEnableSerial,
  SerDisableSerial,
  SL_ClearBreak,
  SL_SetBreak,
  SL_XmitComChar,
  SL_GetStatus,
  SL_Reset,
  SL_GetModemStatus,
  SerGetCommProperties,
  SL_PurgeComm,
  SL_SetDCB,
  SL_SetCommTimeouts,
};

// COM2 函数表
const
HW_VTBL IoVTbl2 = {
  SerInitSerial2,
  SL_PostInit,
  SerDeinit,
  SerOpen,
  SerClose,
  SL_GetInterruptType,
  SL_RxIntr,
  SL_TxIntr,
  SL_ModemIntr,
  SL_LineIntr,
  SL_GetRxBufferSize,
  SerPowerOff,
  SerPowerOn,
  SL_ClearDTR,
  SL_SetDTR,
  SL_ClearRTS,
  SL_SetRTS,
  SerEnableSerial,
  SerDisableSerial,
  SL_ClearBreak,
  SL_SetBreak,
  SL_XmitComChar,
  SL_GetStatus,
  SL_Reset,
  SL_GetModemStatus,
  SerGetCommProperties,
  SL_PurgeComm,
  SL_SetDCB,
  SL_SetCommTimeouts,
};

// COM3 函数表
const
HW_VTBL IoVTbl3 = {
  SerInitSerial3,
  SL_PostInit,
  SerDeinit,
  SerOpen,
  SerClose,
  SL_GetInterruptType,
  SL_RxIntr,
  SL_TxIntr,
  SL_ModemIntr,
  SL_LineIntr,
  SL_GetRxBufferSize,
  SerPowerOff,
  SerPowerOn,
  SL_ClearDTR,
  SL_SetDTR,
  SL_ClearRTS,
  SL_SetRTS,
  SerEnableSerial,
  SerDisableSerial,
  SL_ClearBreak,
  SL_SetBreak,
  SL_XmitComChar,
  SL_GetStatus,
  SL_Reset,
  SL_GetModemStatus,
  SerGetCommProperties,
  SL_PurgeComm,
  SL_SetDCB,
  SL_SetCommTimeouts,
};

onst HWOBJ IoObj1 = {
 THREAD_AT_INIT,
 SYSINTR_SERIAL,
 (PHW_VTBL) &IoVTbl
};

const HWOBJ IoObj2 = {
 THREAD_AT_INIT,
 SYSINTR_SERIAL2,
 (PHW_VTBL) &IoVTbl2
};

const HWOBJ IoObj3 = {
 THREAD_AT_INIT,
 SYSINTR_SERIAL3,
 (PHW_VTBL) &IoVTbl3
};

const PCHWOBJ HWObjects[] = {
 &IoObj1,
/* &IrObj */
 &IoObj2,
 &IoObj3
};

PHWOBJ
GetSerialObject(
               DWORD DeviceArrayIndex
               )
{
 PHWOBJ pSerObj;

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

 // Now return this structure to the MDD.
 if ( DeviceArrayIndex == 0 )
/*  pSerObj = (PHWOBJ)(&IrObj);
 else
*/  pSerObj = (PHWOBJ)(&IoObj1);
 else if ( DeviceArrayIndex == 1 )
  pSerObj = (PHWOBJ)(&IoObj2);
 else if ( DeviceArrayIndex == 2 )
  pSerObj = (PHWOBJ)(&IoObj3);
 else
  RETAILMSG(DEBUGMODE,(TEXT("\nGetSerialObject : ERROR! no this serial port ---> DeviceArrayIndex = %d\r\n"), DeviceArrayIndex));

 return (pSerObj);
}
ser2410_hw.c修改

   else if ( pHWHead1->dwIOBase == 0x50008000)
    {
#if USEVIRTUAL
        EnterCriticalSection(&(pHWHead->RegCritSec));
       
        v_pIOPregs->rGPHCON &= ~(0x3<<0 | 0x3<<2 | 0x3<<12 | 0x3<<14); // clear uart 2 - rx, tx
        v_pIOPregs->rGPHCON |=   (0x2<<0 | 0x2<<2 | 0x2<<12 | 0x2<<14);
        v_pIOPregs->rGPHUP   |=    0xc0;

  // 设置控制RS485的IO口为输出模式
/*  v_pIOPregs->rGPDCON &= ~(0x3<<6 | 0x3<<14);
  v_pIOPregs->rGPDCON |=  (0x1<<6 | 0x1<<14);
  v_pIOPregs->rGPDUP  |=  0x88;*/

  // MAX485控制信号初始化为接收模式:PDD3---RE = 0, PDD7---DE = 0
//  v_pIOPregs->rGPDDAT &= ~(0x1<<3 | 0x1<<7);
#else
        volatile IOPreg *s2410IOP;
        s2410IOP   = (volatile IOPreg *)IOP_BASE;
       
        EnterCriticalSection(&(pHWHead->RegCritSec));
        s2410IOP->rGPHCON &= ~(0x3<<0 | 0x3<<2 | 0x3<<12 | 0x3<<14); // clear uart 2 - rx, tx
        s2410IOP->rGPHCON |=  (0x2<<0 | 0x2<<2 | 0x2<<12 | 0x2<<14);
        s2410IOP->rGPHUP  |= 0xc0;

  // 设置控制RS485的IO口为输出模式
/*  c->rGPDCON &= ~(0x3<<6 | 0x3<<14);
  s2410IOP->rGPDCON |=  (0x1<<6 | 0x1<<14);
  s2410IOP->rGPDUP  |=  0x88;
*/
  // MAX485控制信号初始化为接收模式:PDD3---RE = 0, PDD7---DE = 0
//  s2410IOP->rGPDDAT &= ~(0x1<<3 | 0x1<<7);
#endif
        LeaveCriticalSection(&(pHWHead->RegCritSec));
    }