/* sysSerial.c - ARM Integrator board serial device initialization *//* Copyright 1999-2000 ARM Limited *//* * Copyright (c) 1999, 2000, 2005, 2007 Wind River Systems, Inc. * * The right to copy, distribute or otherwise make use of this software * may be licensed only pursuant to the terms of an applicable Wind River * license agreement. *//*modification history--------------------01f,26sep07,mdo  Clear out apigen errors/warnings01e,10oct05,h_k  included sysSerialChanGet for lower layer. (SPR #113407)01d,08jul05,h_k  added sysSerialPollConsoleOut to support kprintf.01c,21feb00,jpd  renamed primecell... symbols to primeCell...01b,26jan00,jpd  minor layout/style changes.01a,10nov99,ajb  copied from pid7t sysSerial.c.*//*DESCRIPTIONThis file contains the board-specific routines for serial channelinitialization of the ARM Integrator development board.INCLUDE FILES: primeCellSio.hSEE ALSO:\tb "ARM Integrator AP User Guide (ARM DUI 0098)."\tb "UART (PL010) Technical Reference Manual (ARM DDI 0139)."*/#include <vxWorks.h>#include <iv.h>#include <intLib.h>#include "config.h"#include <sysLib.h>#include "primeCellSio.h"/* device initialization structure */typedef struct    {    UINT	vector;    UINT32 *	baseAdrs;    UINT	intLevel;    } SYS_AMBA_CHAN_PARAS;/* Local data structures */LOCAL SYS_AMBA_CHAN_PARAS devParas[] =    {      {INT_VEC_UART_0, (UINT32 *)UART_0_BASE_ADR, INT_LVL_UART_0},      {INT_VEC_UART_1, (UINT32 *)UART_1_BASE_ADR, INT_LVL_UART_1}    };LOCAL AMBA_CHAN ambaChan[N_AMBA_UART_CHANNELS];/* * Array of pointers to all serial channels configured in system. * See sioChanGet(). It is this array that maps channel pointers * to standard device names.  The first entry will become "/tyCo/0", * the second "/tyCo/1", and so forth. */LOCAL SIO_CHAN * sysSioChans [] =    {    &ambaChan[0].sio, /* /tyCo/0 */    &ambaChan[1].sio, /* /tyCo/1 */    };/* forward declarations */#ifdef	INCLUDE_SIO_POLLLOCAL int sysSerialPollConsoleOut (int arg, char *buf, int len);#endif	/* INCLUDE_SIO_POLL *//******************************************************************************** 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_AMBA_UART_CHANNELS; i++)	{	ambaChan[i].regs = devParas[i].baseAdrs;	ambaChan[i].baudRate = CONSOLE_BAUD_RATE;	ambaChan[i].xtal = UART_XTAL_FREQ;	ambaChan[i].levelRx = devParas[i].intLevel;	ambaChan[i].levelTx = devParas[i].intLevel;	/*	 * Initialize driver functions, getTxChar, putRcvChar and channelMode	 * and initialize UART	 */	primeCellSioDevInit(&ambaChan[i]);	}#ifdef	INCLUDE_SIO_POLL    sioIoctl (sysSioChans[SIO_POLL_CONSOLE], SIO_MODE_SET,	      (void *) SIO_MODE_POLL);    _func_consoleOut = sysSerialPollConsoleOut;#endif	/* INCLUDE_SIO_POLL */    }#ifdef	INCLUDE_TTY_DEV/******************************************************************************** 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() may call malloc().** RETURNS: N/A** SEE ALSO: sysHwInit2()*/void sysSerialHwInit2 (void)    {    int i;    for (i = 0; i < N_AMBA_UART_CHANNELS; i++)	{	/*	 * Connect and enable the interrupt.	 * We would like to check the return value from this and log a message	 * if it failed. However, logLib has not been initialized yet, so we	 * cannot log a message, so there's little point in checking it.	 */	(void) intConnect (INUM_TO_IVEC(devParas[i].vector),			   primeCellSioInt, (int) &ambaChan[i] );	intEnable (devParas[i].intLevel);	}    }#endif	/* INCLUDE_TTY_DEV *//******************************************************************************** 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 >= (int)(NELEMENTS(sysSioChans)))	return (SIO_CHAN *)ERROR;    return sysSioChans[channel];    }#ifdef	INCLUDE_TTY_DEV/******************************************************************************** sysSerialReset - reset the sio devices to a quiet state** Reset all devices to prevent them from generating interrupts.** This is called from sysToMonitor to shutdown the system gracefully before* transferring to the boot ROMs.** RETURNS: N/A*/void sysSerialReset (void)    {    int i;    for (i = 0; i < N_AMBA_UART_CHANNELS; i++)	{	/* disable serial interrupts */	intDisable (devParas[i].intLevel);	}    }#endif	/* INCLUDE_TTY_DEV */#ifdef	INCLUDE_SIO_POLL/******************************************************************************** sysSerialPollConsoleOut - poll out routine** This function prints by polling.** RETURNS: bytes sent to console*/LOCAL int sysSerialPollConsoleOut    (    int    arg,    char * buf,    int    len    )    {    char c;    int  bytesOut = 0;    if ((len <= 0) || (buf == NULL))	return (0);    while ((bytesOut < len) && ((c = *buf++) != EOS))	{	while (sioPollOutput (sysSioChans[SIO_POLL_CONSOLE], c) == EAGAIN);	bytesOut++;	if (c == '\n')	    while (sioPollOutput (sysSioChans[SIO_POLL_CONSOLE], '\r') == EAGAIN);	}    return (bytesOut);    }#endif	/* INCLUDE_SIO_POLL */