www.pudn.com > 860bsp.rar > sysSerial.c
/* sysSerial.c - MPC860 BSP serial device initialization */
#include "copyright_wrs.h"
/*
modification history
--------------------
*/
/*
The sysSerial.c file is normally included as part of the sysLib.c file.
This code segment configures the serial ports for the BSP.
*/
#include "vxWorks.h"
#include "iv.h"
#include "intLib.h"
#include "config.h"
#include "sysLib.h"
#include "rngLib.h"
#include "drv/sio/ppc860Sio.h"
#include "drv/multi/ppc860Cpm.h"
#include "bsc860.h"
/*#include "scc2Modem.c"*/
/* defines */
/*
* the macros below define parameters describing the configuration of
* the SMCs channels in the PPC860's DPRAM, for instance the offset
* of the transmit buffer descriptors (TBD), receive buffer descriptors
* (RBD), and so on. The user may redefine them to best suit its needs.
* He should be aware of the location of other peripherals's parameters
* within the DPRAM (SCC1, etc.).
*/
/* offset from DPRAM of SMC1's TBDs */
#define SMC1_TBD_OFF 0xc00
/* offset from DPRAM of SMC1's RBDs */
#define SMC1_RBD_OFF (SMC1_TBD_OFF + 0x10)
/* offset from DPRAM of SMC1's Tx buffers */
#define SMC1_TX_BUF_OFF 0xd00
/* offset from DPRAM of SMC1's Rx buffers */
#define SMC1_RX_BUF_OFF (SMC1_TX_BUF_OFF + 0x80)
/* number of SMC1's TBDs */
#define SMC1_TBD_NUM 0x01
/* number of SMC1's RBDs */
#define SMC1_RBD_NUM 0x10
/* offset from DPRAM of SMC2's TBDs */
#define SMC2_TBD_OFF 0xe00
/* offset from DPRAM of SMC2's RBDs */
#define SMC2_RBD_OFF (SMC2_TBD_OFF + 0x10)
/* offset from DPRAM of SMC2's Tx buffers */
#define SMC2_TX_BUF_OFF 0xf00
/* offset from DPRAM of SMC2's Rx buffers */
#define SMC2_RX_BUF_OFF (SMC2_TX_BUF_OFF + 0x80)
/* number of SMC2's TBDs */
#define SMC2_TBD_NUM 0x01
/* number of SMC2's RBDs */
#define SMC2_RBD_NUM 0x10
/* size of the SMC1 transmit buffer */
#define SMC1_TX_BUF_SZ 0x01
/* size of the SMC2 transmit buffer */
#define SMC2_TX_BUF_SZ 0x01
/* device initialization structure */
typedef struct
{
UINT32 smcTbdOff; /* offset of the TBDs for this smc */
UINT32 smcRbdOff; /* offset of the RBDs for this smc */
UINT32 smcTbdNum; /* number of TBDs for this smc */
UINT32 smcRbdNum; /* number of RBDs for this smc */
UINT32 smcTxBufOff; /* offset of the Tx buf for this smc */
UINT32 smcRxBufOff; /* offset of the Rx buf for this smc */
UINT32 smcTxBufSz; /* size of the Tx buf for this smc */
} PPC860SMC_PARMS;
/* forward declaration */
void scc2ModemInit(void);
/* Local data structures */
static UINT8 chanNum =1; /* number of channels actually used */
/*----------------------------*/
/* Base of buffer descriptors */
/*----------------------------*/
static PPC860SMC_PARMS ppc860SmcParms [] =
{
{SMC1_TBD_OFF, SMC1_RBD_OFF, SMC1_TBD_NUM, SMC1_RBD_NUM,
SMC1_TX_BUF_OFF, SMC1_RX_BUF_OFF, SMC1_TX_BUF_SZ},
{SMC2_TBD_OFF, SMC2_RBD_OFF, SMC2_TBD_NUM, SMC2_RBD_NUM,
SMC2_TX_BUF_OFF, SMC2_RX_BUF_OFF, SMC2_TX_BUF_SZ},
};
static PPC860SMC_CHAN ppc860Chan [1];
/*static PPC860SCC2MODEM_CHAN scc2Modem; */ /*scc2 uart*/
/*static UINT8 scc2TxBuffer[SCC2MODEM_TXBDNUM][SCC2MODEM_TXBUFFER];
static UINT8 scc2RxBuffer[SCC2MODEM_RXBDNUM][SCC2MODEM_RXBUFFER];*/
/******************************************************************************
*
* sysSerialHwInit - initialize the BSP serial devices to a quiesent state
*
* This routine initializes the BSP serial device descriptors and puts the
* devices in a quiesent state. It is called from sysHwInit() with
* interrupts locked.
* RETURNS: N/A
*/
void sysSerialHwInit (void)
{
int i; /* an index */
UINT8 smcNum;
smcNum=chanNum;
/* intialize the chips device descriptors */
for (i = 0; i < smcNum; i++)
{
UINT32 regBase;
/* BRGCLK freq (Hz) */
ppc860Chan [i].clockRate = BRGCLK_FREQ;
/* IMMR reg has base adr */
ppc860Chan [i].regBase = vxImmrGet();
regBase = ppc860Chan [i].regBase;
/* use BRG1 for channel 1 and BRG2 for channel 2 */
ppc860Chan [i].bgrNum = (i + 1);
/* SMC wired for rs232 */
ppc860Chan [i].uart.smcNum = (i + 1);
/* init the number of TBDs */
ppc860Chan [i].uart.txBdNum = ppc860SmcParms[i].smcTbdNum;
/* init the number of RBDs */
ppc860Chan [i].uart.rxBdNum = ppc860SmcParms[i].smcRbdNum;
/* transmit BD base adrs */
ppc860Chan [i].uart.txBdBase = (SMC_BUF *)
(MPC860_REGB_OFFSET +
ppc860SmcParms[i].smcTbdOff);
/* receive BD base adrs */
ppc860Chan [i].uart.rxBdBase = (SMC_BUF *)
(MPC860_REGB_OFFSET +
ppc860SmcParms[i].smcRbdOff);
/* tx buf base */
ppc860Chan [i].uart.txBufBase = (u_char *)
(MPC860_DPRAM_BASE (regBase)
+ ppc860SmcParms[i].smcTxBufOff);
/* rx buf base */
ppc860Chan [i].uart.rxBufBase = (u_char *)
(MPC860_DPRAM_BASE (regBase)
+ ppc860SmcParms[i].smcRxBufOff);
/* transmit buffer size */
ppc860Chan [i].uart.txBufSize = ppc860SmcParms[i].smcTxBufSz;
/* DPRAM addr of SMC1 params */
ppc860Chan [i].uart.pSmc = (SMC *) ((UINT32) PPC860_DPR_SMC1
(MPC860_DPRAM_BASE (regBase))
+ (i * 0x100));
/* SMCMR1 for SMC1 */
ppc860Chan [i].uart.pSmcReg = (SMC_REG *)
((UINT32) MPC860_SMCMR1 (regBase)
+ (i * 0x10));
/* Mask interrupts */
ppc860Chan [i].uart.pSmcReg->smcm = 0;
ppc860Chan [i].pBaud = (UINT32 *) ((UINT32) MPC860_BRGC1 (regBase)
+ (i * 4));
ppc860Chan [i].channelMode = 0;
/* select RS232 pins */
*MPC860_PBPAR(regBase) |= 0xC0 << (i * 4); /*PB24,PB25*/
/* set it to normal operations */
*MPC860_SDCR(regBase) = SDCR_RAID_BR5;
/* reset the chip */
ppc860DevInit(&(ppc860Chan [i]));
}
/*以上是对SMC口的初始化程序，SMC1为TTY设备0，SMC2为TTY设备1*/
/* scc2ModemInit();*/
/*SCC2为标准MODEM串口*/
}
/******************************************************************************
*
* sysSerialHwInit2 - connect BSP serial device interrupts
*
* This routine connects the BSP serial device interrupts. It is called from
* sysHwInit2(). Serial device interrupts could not be connected in
* sysSerialHwInit() because the kernel memory allocator was not initialized
* at that point, and intConnect() calls malloc().
*
* RETURNS: N/A
*/
void sysSerialHwInit2 (void)
{
int i; /* an index */
/* connect serial interrupts */
for (i = 0; i < chanNum; i++)
{
switch (i)
{
case 0:
(void) intConnect (IV_SMC1, (VOIDFUNCPTR) ppc860Int,
(int) &ppc860Chan [i]);
break;
case 1:
(void) intConnect (IV_SMC2_PIP, (VOIDFUNCPTR)ppc860Int,
(int)&ppc860Chan [i]);
break;
default:
return;
}
*CIMR(vxImmrGet()) |= (CIMR_SMC1 >> i);
}
/* (void)intConnect(IV_SCC2,(VOIDFUNCPTR)scc2ModemInterrupt,(int)&scc2Modem);
*MPC860_CIMR(vxImmrGet())|=CIMR_SCC2;*/
/*SCC2中断使能*/
}
/******************************************************************************
*
* sysSerialChanGet - get the SIO_CHAN device associated with a serial channel
*
* This routine gets the SIO_CHAN device associated with a specified serial
* channel.
*
* RETURNS: A pointer to the SIO_CHAN structure for the channel, or ERROR
* if the channel is invalid.
*/
SIO_CHAN * sysSerialChanGet
(
int channel /* serial channel */
)
{
if (channel >= chanNum)
return ((SIO_CHAN *) ERROR);
return ((SIO_CHAN *) &ppc860Chan [channel]);
}
/*******************************************************************************
*
* sysSerialReset - reset the serail device
*
* This function calls sysSerialHwInit() to reset the serail device
*
* RETURNS: N/A
*
*/
void sysSerialReset (void)
{
sysSerialHwInit ();
}
/*scc2通道初始化，结构PPC860SCC860
参数：无
返回值：无
*/
/*void scc2ModemInit
(
void
)
{
UINT32 regBase;
int i=0;
scc2Modem.clockRate = BRGCLK_FREQ;*/
/* IMMR reg has base adr */
/*scc2Modem.regBase = vxImmrGet();
regBase = scc2Modem.regBase;
scc2Modem.creatFlag=0;*/
/* use BRG3 for scc2 */
/*scc2Modem.bgrNum = 3;
scc2Modem.scc2RingId=rngCreate(2*SCC2MODEM_RXBDNUM*SCC2MODEM_RXBUFFER); */
/* ScC2 wired for rs232 */
/*scc2Modem.uart.sccNum = 2; */
/* init the number of TBDs */
/*scc2Modem.uart.txBdNum = SCC2MODEM_TXBDNUM; */
/* init the number of RBDs */
/*scc2Modem.uart.rxBdNum = SCC2MODEM_RXBDNUM; */
/* transmit BD base adrs */
/*scc2Modem.uart.txBdBase = (SCC_BUF *)(0x2a00);*//*bd结构*/
/* receive BD base adrs */
/*scc2Modem.uart.rxBdBase = (SCC_BUF *)(0x2b00);*/ /*bd结构*/
/* tx buf base */
/*scc2Modem.uart.txBufBase = (u_char *)(scc2TxBuffer); */
/* rx buf base */
/*scc2Modem.uart.rxBufBase = (u_char *)(scc2RxBuffer);*/
/* transmit buffer size */
/*scc2Modem.uart.txBufSize = SCC2MODEM_TXBUFFER;
scc2Modem.uart.rxBufSize = SCC2MODEM_RXBUFFER;*/
/* DPRAM addr of Scc2 params */
/*scc2Modem.uart.pScc = (SCC *) ((UINT32) PPC860_DPR_SCC2
(MPC860_DPRAM_BASE (regBase)));*/
/* scc2的寄存器 */
/*scc2Modem.uart.pSccReg = (SCC_REG *)((UINT32) MPC860_GSMR_L2 (regBase));*/
/* Mask interrupts */
/*scc2Modem.uart.pSccReg->sccm = 0;
scc2Modem.pBaud = (UINT32 *) ((UINT32) MPC860_BRGC3 (regBase));
scc2Modem.channelMode = 0; */ /*中断或轮询*/
/* select RS232 pins ,CTS2,RTS2,CD2,TXD2,RXD2*/
/**MPC860_PCPAR(regBase) &= 0xff3f ; */ /*Pc8,Pc9,pcpar bit clear 0*/
/**MPC860_PCDIR(regBase) &= 0xff3f ; */ /*pc8,pc9,pcdir bit clear 0*/
/**MPC860_PCSO(regBase) |= 0x00c0 ; */ /*pc8,pc9,pcso bit set 1 */
/**MPC860_PCPAR(regBase) |= 0x0020 ; */ /*Pc16,pcpar bit set 1*/
/**MPC860_PCDIR(regBase) &= 0xfffd ; */ /*pc14,pcdir bit clear 0*/
/**MPC860_PAPAR(regBase) |= 0x000c ; */ /*pa12,pa13,papar bit set 1*/
/**MPC860_PADIR(regBase) |= 0xfff3 ; */ /* pa12,pa13,padir bit clear 0*/
/*scc2Modem.pBaud=0x0001028c; *//*50M/9600/16=326=0x146,产生9600波特率*/
/*
*MPC860_SICR(regBase)&=0xffff00ff;
*MPC860_SICR(regBase)|=0x00001200; */ /*brg3,NMSI*/
/**MPC860_SDCR(regBase) =0x00000001; */ /*Normal mode*/
/*scc2Modem.uart.pScc->param.tbase=SCC2_RBASE_OFFSET; *//*0xa00*/
/*scc2Modem.uart.pScc->param.rbase=SCC2_TBASE_OFFSET; *//*0xb00*/
/*MPC860_CPCR(regBase)=0x0041;*/ /*write value to rbptr and tbptr*/
/*scc2Modem.uart.pScc->param.rfcr=0x10; *//*normal*/
/*scc2Modem.uart.pScc->param.tfcr=0x10; *//*normal*/
/*scc2Modem.uart.pScc->param.mrblr=SCC2MODEM_RXBUFFER; *//*maxium buffer 1 bytes*/
/**SCC_MAX_IDL((UINT32)PPC860_DPR_SCC2(MPC860_DPRAM_BASE (regBase)))=0x0000;
*SCC_BRKCR((UINT32)PPC860_DPR_SCC2(MPC860_DPRAM_BASE (regBase)))=0x00011;*/
/*only one break charcter*/
/**SCC_PAREC((UINT32)PPC860_DPR_SCC2(MPC860_DPRAM_BASE (regBase)))=0x0000;
*SCC_FRMEC((UINT32)PPC860_DPR_SCC2(MPC860_DPRAM_BASE (regBase)))=0x0000;
*SCC_NOSEC((UINT32)PPC860_DPR_SCC2(MPC860_DPRAM_BASE (regBase)))=0x0000;
*SCC_BRKEC((UINT32)PPC860_DPR_SCC2(MPC860_DPRAM_BASE (regBase)))=0x0000;*/
/*clear parec, frmec ,nosec , brkec*/
/**SCC_UADDR1((UINT32)PPC860_DPR_SCC2(MPC860_DPRAM_BASE (regBase)))=0x0000;
*SCC_UADDR2((UINT32)PPC860_DPR_SCC2(MPC860_DPRAM_BASE (regBase)))=0x0000;*/
/*clear UADDR1, UADDR2*/
/**SCC_TOSEQ((UINT32)PPC860_DPR_SCC2(MPC860_DPRAM_BASE (regBase)))=0x0000;*/
/*clear TOSEQ*/
/**SCC_CHARACTER1((UINT32)PPC860_DPR_SCC2(MPC860_DPRAM_BASE (regBase)))=0x8000;
*SCC_CHARACTER2((UINT32)PPC860_DPR_SCC2(MPC860_DPRAM_BASE (regBase)))=0x8000;
*SCC_CHARACTER3((UINT32)PPC860_DPR_SCC2(MPC860_DPRAM_BASE (regBase)))=0x8000;
*SCC_CHARACTER4((UINT32)PPC860_DPR_SCC2(MPC860_DPRAM_BASE (regBase)))=0x8000;
*SCC_CHARACTER5((UINT32)PPC860_DPR_SCC2(MPC860_DPRAM_BASE (regBase)))=0x8000;
*SCC_CHARACTER6((UINT32)PPC860_DPR_SCC2(MPC860_DPRAM_BASE (regBase)))=0x8000;
*SCC_CHARACTER7((UINT32)PPC860_DPR_SCC2(MPC860_DPRAM_BASE (regBase)))=0x8000;
*SCC_CHARACTER8((UINT32)PPC860_DPR_SCC2(MPC860_DPRAM_BASE (regBase)))=0x8000;*/
/*clear from character1 to character8 */
/**SCC_RCCM((UINT32)PPC860_DPR_SCC2(MPC860_DPRAM_BASE (regBase)))=0xc0ff;*/
/*set rccm*/
/*初始化BD*/
/*for(i=0;iscce=0xffff;*/
/*clear all previous events*/
/*scc2Modem.uart.pSccReg->sccm=0x0001;*/
/* enable Rx interrupt
disable Tx interrupt*/
/* *MPC860_CIMR(regBase)|=0x20000000;*/
/*scc2 allowed to generate a sysytem interrupt*/
/**MPC860_CICR(regBase)|=0x00000000;*/
/*set cmp interrupt level ,default level 4*/
/*scc2Modem.uart.pSccReg->gsmrh=0x00000020;*/
/*a small Rx FIFO width*/
/* scc2Modem.uart.pSccReg->gsmrl=0x00028004;*/
/*uart mode ,normal operate*/
/* scc2Modem.uart.pSccReg->psmr=0xb000;*/
/*automatic flow control
8 bit characters
no parity
1 stop bit
asynchronous SCC UART operation*/
/*scc2 uart initialization is over */
/*writen by d.c.peng,4.29,2001*/
/*}*/