sysata.c

cpc-1631的BSP包for VxWorks操作系统

/* sysAta.c - ATA-2 initialization for sysLib.c */

/* Copyright 1984-1999 Wind River Systems, Inc. */

#include "copyright_wrs.h"

/*
modification history
--------------------
01b,27aug01,dgp  change manual pages to reference entries per SPR 23698
01a,01apr99,jkf  written
*/

/* 
Description

This file contains the sysAtaInit() necessary for
initializing the ATA/EIDE subsystem on the via chip. 
This file will enable the controller and also set the 
PIO mode as detected by ataDrv().
*/

/* includes */

#include "vxWorks.h"
#include "config.h"

#ifdef	INCLUDE_ATA_686

#include "ataDrv.h"

/* defines */

#define WB_CTRL_STAT_INDX	0x40		/* IDE ctrl stat reg */

/* IDE  Drive x CTRLx reg's */

#define WB_DRIVE0_CTRL0_INDX	0x44		/* master / primary   */	
#define WB_DRIVE1_CTRL0_INDX	0x48		/* slave  / primary   */
#define WB_DRIVE0_CTRL1_INDX	0x4c		/* master / secondary */
#define WB_DRIVE1_CTRL1_INDX	0x50		/* slave  / secondary */

/* IDE Chip Enable Value */

#define WB_CFG_CHIP_ENABLE	0x33		/* Turn on both ports */

/* via PIO mode settings */

#define WB_PIO_MODE_0	((0x5 << 8) | 0xd)	/* W83C553 setting PIO0 */
#define WB_PIO_MODE_1	((0x4 << 8) | 0x7)	/* W83C553 setting PIO1 */
#define WB_PIO_MODE_2	((0x3 << 8) | 0x4)	/* W83C553 setting PIO2 */
#define WB_PIO_MODE_3	((0x2 << 8) | 0x2)	/* W83C553 setting PIO3 */
#define WB_PIO_MODE_4	((0x2 << 8) | 0x1)	/* W83C553 setting PIO4 */
#define WB_PIO_MODE_5	((0x1 << 8) | 0x1)	/* W83C553 setting PIO5 */

#define DEFAULT_PIOMODE	WB_PIO_MODE_4		/* reset as desired */

/* drive ctrl value, note PIO mode is setup in the routine */

#define WB_DRIVE_CTRL_VAL	((WB_PCI_CTRL_REG << 4) | pioMode)

/* external declarations */

/* global declarations */

/* locals */

LOCAL BOOL 	      sysAtaInstalled = FALSE;

/* function declarations */

/******************************************************************************
*
* sysAtaInit - initialize the EIDE/ATA interface
*
* Perform the necessary initialization required before starting up the
* ATA/EIDE driver on the vt82c686.  The first time it is called with 
* ctrl and drive = 0.   The next time it is called is from ataDrv with
* the appropriate controller and drive to determine PIO mode to use
* on the drive.  See the ataDrv reference entry.
*/

void sysAtaInit
    (
    BOOL ctrl
    )
    {
    UINT16	      tmpInt16;
    int		      tmpInt;
    int		      pioMode;
    ATA_CTRL * 	      pCtrl;
    ATA_DRIVE *       pDrive;

	ataResources[0].resource.ioStart[0] = PCI_MSTR_ISA_IO_LOCAL+0x1f0/*0xfe0001f0*/;
	ataResources[0].resource.ioStart[1] = PCI_MSTR_ISA_IO_LOCAL+0x3f6/*0xfe0003f6*/;
	ataResources[1].resource.ioStart[0] = PCI_MSTR_ISA_IO_LOCAL+0x170/*0xfe000170*/;
	ataResources[1].resource.ioStart[1] = PCI_MSTR_ISA_IO_LOCAL+0x376/*0xfe000376*/;

	ataResources[0].ctrlType 	= IDE_LOCAL;
	ataResources[0].drives 		= ATA_CTRL0_DRIVES;
	ataResources[0].intVector 	= (int)IDE_CNTRLR0_INT_LVL;
	ataResources[0].intLevel 	= (int)IDE_CNTRLR0_INT_LVL;
	ataResources[0].configType 	= (ATA_PIO_AUTO | ATA_GEO_PHYSICAL|ATA_BITS_16|ATA_PIO_MULTI);
	ataResources[0].semTimeout 	= 5;
	ataResources[0].wdgTimeout 	= 5;

	/* Second, initialize the Controller 1 data structure */

	ataResources[1].ctrlType 	= IDE_LOCAL;
	ataResources[1].drives 		= ATA_CTRL1_DRIVES;
	ataResources[1].intVector 	= (int)IDE_CNTRLR1_INT_LVL;
	ataResources[1].intLevel 	= (int)IDE_CNTRLR1_INT_LVL;
	ataResources[1].configType 	= (ATA_PIO_AUTO | ATA_GEO_PHYSICAL|ATA_BITS_16|ATA_PIO_MULTI);
	ataResources[1].semTimeout 	= 5;
	ataResources[1].wdgTimeout 	= 5;
	
	_func_sysAtaInit = (VOIDFUNCPTR) sysAtaInit; 

    }

#endif /* INCLUDE_ATA_686 */