/* sysSerial.c - PC386/486 BSP serial device initialization *//* Copyright 1984-1996 Wind River Systems, Inc. */#include "copyright_wrs.h"/*modification history--------------------01g,21sep98,fle  added library description01f,19jun96,wlf  doc: cleanup.01e,23oct95,jdi  doc: cleaned up and removed all NOMANUALs.01d,03aug95,myz  fixed the warning message01c,20jun95,ms   fixed comments for mangen01b,15jun95,ms	 updated for new serial driver01a,15mar95,myz  written based on mv162 version.*//*DESCRIPTIONThis library contains routines for PC386/486 BSP serial device initialization*/#include "vxWorks.h"#include "iv.h"#include "intLib.h"#include "config.h"#include "sysLib.h"#include "drv/sio/i8250Sio.h"/* device initialization structure */typedef struct    {    USHORT vector;    ULONG  baseAdrs;    USHORT regSpace;    USHORT intLevel;    } I8250_CHAN_PARAS;#ifdef INCLUDE_PC_CONSOLE       /* if key board and VGA console needed */#include "serial/pcConsole.c"#include "serial/m6845Vga.c"#if (PC_KBD_TYPE == PC_PS2_101_KBD)     /* 101 KEY PS/2                 */#include "serial/i8042Kbd.c"#else#include "serial/i8048Kbd.c"            /* 83 KEY PC/PCXT/PORTABLE      */#endif /* (PC_KBD_TYPE == PC_XT_83_KBD) */#endif /* INCLUDE_PC_CONSOLE *//* 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}    };#define UART_REG(reg,chan) \(devParas[chan].baseAdrs + reg*devParas[chan].regSpace)/******************************************************************************** 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.** RETURNS: N/A** SEE ALSO: sysHwInit()*/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 = sysOutByte;	i8250Chan[i].inByte  = 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 (i8250Chan[i].int_vec),                                i8250Int, (int)&i8250Chan[i] );             sysIntEnablePIC (devParas[i].intLevel);              }    }/******************************************************************************** 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 */    )    {    return ( (SIO_CHAN *)&i8250Chan[channel] );    }