/* sysSerial.c - Serial device initialization *//* Copyright 1984-2002 Wind River Systems, Inc. *//* Copyright 1996-2002 Motorola, Inc. All Rights Reserved */#include "copyright_wrs.h"/*modification history--------------------01b,08feb01,cak  Added support for COMs 2 and 301a,02nov00,djs  created base on 01c,18feb99,srr mv2100*//*The sysSerial.c file is normally included as part of the sysLib.c file.This code segment configures the serial ports for the BSP.This BSP can support up to three 16550-compatible UARTs. */#include "vxWorks.h"#include "iv.h"#include "intLib.h"#include "config.h"#include "sysLib.h"#include "drv/sio/i8250Sio.h"/* externals */IMPORT UCHAR	sysInByte(ULONG);IMPORT void	sysOutByte(ULONG, UCHAR);IMPORT int	intEnable (int intLevel);/* device initialization structures */typedef struct    {    USHORT vector;			/* Interrupt vector */    ULONG  baseAdrs;			/* Register base address */    USHORT regSpace;			/* Address Interval */    USHORT intLevel;			/* Interrupt level */    } I8250_CHAN_PARAS;/* Local data structures */static I8250_CHAN  i8250Chan[N_UART_CHANNELS];static I8250_CHAN_PARAS devParas[] =     {       {COM1_INT_VEC, COM1_BASE_ADR, UART_REG_ADDR_INTERVAL, COM1_INT_LVL},       {COM2_INT_VEC, COM2_BASE_ADR, UART_REG_ADDR_INTERVAL, COM2_INT_LVL},       {COM3_INT_VEC, COM3_BASE_ADR, UART_REG_ADDR_INTERVAL, COM3_INT_LVL}    };#define UART_REG(reg,chan) \		(devParas[chan].baseAdrs + reg * devParas[chan].regSpace)/* globals *//* * sysSioChans - Array of pointers to all serial channels configured in system. * * Channel pointer position in this table determines the device name * under vxWorks.  The first pointer points to the device for /tyCo/0, * the second to /tyCo/1, etc.  See sysSerialChanGet(). */SIO_CHAN * sysSioChans [N_SIO_CHANNELS] =    {    (SIO_CHAN *)&i8250Chan[0].pDrvFuncs,		/* /tyCo/0 */    (SIO_CHAN *)&i8250Chan[1].pDrvFuncs,		/* /tyCo/1 */    (SIO_CHAN *)&i8250Chan[2].pDrvFuncs,		/* /tyCo/2 */    };/******************************************************************************** sysSerialHwInit - initialize the BSP serial devices to a quiescent state** This routine initializes the BSP serial device descriptors and puts the* devices in a quiescent state.  It is called from sysHwInit() with* interrupts locked.  Polled mode serial operations are possible, but not* interrupt mode operations which are enabled by sysSerialHwInit2().** RETURNS: N/A** SEE ALSO: sysHwInit(), sysSerialHwInit2()*/void sysSerialHwInit (void)    {    int i;    for (i = 0; i < N_UART_CHANNELS; i++)        {	i8250Chan[i].int_vec	 = devParas[i].vector;	i8250Chan[i].channelMode = 0;	i8250Chan[i].lcr	 = UART_REG(UART_LCR, i);	i8250Chan[i].data	 = UART_REG(UART_RDR, i);	i8250Chan[i].brdl	 = UART_REG(UART_BRDL, i);	i8250Chan[i].brdh	 = UART_REG(UART_BRDH, i);	i8250Chan[i].ier	 = UART_REG(UART_IER, i);	i8250Chan[i].iid	 = UART_REG(UART_IID, i);	i8250Chan[i].mdc	 = UART_REG(UART_MDC, i);	i8250Chan[i].lst	 = UART_REG(UART_LST, i);	i8250Chan[i].msr	 = UART_REG(UART_MSR, i);	i8250Chan[i].outByte	 = (void (*) (int, char))  sysOutByte;	i8250Chan[i].inByte	 = (UINT8 (*) ()) sysInByte;	i8250HrdInit (&i8250Chan[i]);        }    }/******************************************************************************** sysSerialHwInit2 - connect BSP serial device interrupts** This routine connects the BSP serial device interrupts.  It is called from* sysHwInit2().  * * Serial device interrupts cannot be connected in sysSerialHwInit() because* the kernel memory allocator is not initialized at that point, and* intConnect() calls malloc().** RETURNS: N/A** SEE ALSO: sysHwInit2()*/void sysSerialHwInit2 (void)    {    int i;    /* connect serial interrupts */     for (i = 0; i < N_UART_CHANNELS; i++)         if (i8250Chan[i].int_vec)	     {             (void) intConnect (INUM_TO_IVEC ((int)i8250Chan[i].int_vec),				i8250Int, (int)&i8250Chan[i] );             intEnable (devParas[i].intLevel);              }    }/******************************************************************************** sysSerialChanGet - get the SIO_CHAN device associated with a serial channel** This routine returns a pointer to the SIO_CHAN device associated* with a specified serial channel.  It is called by usrRoot() to obtain * pointers when creating the system serial devices, `/tyCo/x'.  It* is also used by the WDB agent to locate its 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 < 0 || channel >= NELEMENTS(sysSioChans))        return (SIO_CHAN *)ERROR;    return sysSioChans[channel];    }/******************************************************************************** sysSerialReset - reset all serial devices to a quiescent state** This routine resets all serial devices to a quiescent state.  It is called * by sysToMonitor().** RETURNS: N/A** SEE ALSO: sysToMonitor()*/void sysSerialReset (void)    {    int i;    for (i = 0; i < N_UART_CHANNELS; i++)        i8250HrdInit (&i8250Chan[i]);    }