1、(oalintr.h)注冊(cè)串口中斷
//SP-A1
/*
打開(kāi)oalintr.h文件，我們添加一個(gè)新的串口，并定義中斷號(hào)。
添加：
//SP-A8沒(méi)什么說(shuō)的就是注冊(cè)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(cè)表中一致。
然后修改下這個(gè)地方：
MapIrq2SysIntr(DWORD _Irq)
{
if( _Irq<=19 )
return ( SYSINTR_FIRMWARE + _Irq );
else
return (0xffffffff);
}
*/
2、(armint.c)在ISR中進(jìn)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(qǐng)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(qǐng)求
搜索：else if(IntPendVal == INTSRC_UART0)
在其后面添加：
//SP-A10此處進(jìn)行中斷請(qǐng)求源的判斷。INTSRC_UART1被定義為UART1的中斷號(hào)，即SRCPND==23
else if(IntPendVal == INTSRC_UART1)
{
//SP-A11 SUBSRCPND中包含一些中斷請(qǐng)求的細(xì)節(jié)，對(duì)于串口就是INT_ERR、INT_RXD、INT_TXD
//用于進(jìn)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(méi)發(fā)生
}
// NOTE: Don't clear INTSRC:UART1 here - serial driver does that.
//
//SP-A12解放對(duì)應(yīng)位的總中斷屏蔽，此時(shí)中斷請(qǐng)求IRQ已經(jīng)傳達(dá)給CPU
s2410INT->rINTMSK |= BIT_UART1;
//SP-A13 INTPND顯示哪個(gè)中斷處于非屏蔽且等待服務(wù)的狀態(tài)，即“該中斷被確定了（asserted 1）”，“相對(duì)于pending（待定）”
//現(xiàn)在判斷完成，即“該中斷被確定了，所以向它發(fā)1，將之置0，清除中斷請(qǐng)求
if (s2410INT->rINTPND & BIT_UART1) s2410INT->rINTPND = BIT_UART1;
//SP-A14向Wince發(fā)出對(duì)應(yīng)的邏輯中斷處理請(qǐng)求
return(SYSINTR_SERIAL1);
}
*/
3、(cfw.c)在IST中進(jìn)行對(duì)應(yīng)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(qū)動(dòng)程序進(jìn)行處理
//SP-A4
/*
打開(kāi)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(shù)改為：
{
//SP-A18 2410串口信息結(jié)構(gòu)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(shè)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(qū)動(dòng)程序進(jìn)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(shù)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(gè)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(cè)表
//SP-A7
/*
打開(kāi)platform.reg文件，這個(gè)是WinCE注冊(cè)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(gè)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(cè)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(duì)應(yīng)，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。
*/