Logo Search packages:      
Sourcecode: linux version File versions  Download package

falconide.c

/*
 *  linux/drivers/ide/legacy/falconide.c -- Atari Falcon IDE Driver
 *
 *     Created 12 Jul 1997 by Geert Uytterhoeven
 *
 *  This file is subject to the terms and conditions of the GNU General Public
 *  License.  See the file COPYING in the main directory of this archive for
 *  more details.
 */

#include <linux/module.h>
#include <linux/types.h>
#include <linux/mm.h>
#include <linux/interrupt.h>
#include <linux/blkdev.h>
#include <linux/hdreg.h>
#include <linux/ide.h>
#include <linux/init.h>

#include <asm/setup.h>
#include <asm/atarihw.h>
#include <asm/atariints.h>
#include <asm/atari_stdma.h>


    /*
     *  Base of the IDE interface
     */

#define ATA_HD_BASE     0xfff00000

    /*
     *  Offsets from the above base
     */

#define ATA_HD_DATA     0x00
#define ATA_HD_ERROR    0x05        /* see err-bits */
#define ATA_HD_NSECTOR  0x09        /* nr of sectors to read/write */
#define ATA_HD_SECTOR   0x0d        /* starting sector */
#define ATA_HD_LCYL     0x11        /* starting cylinder */
#define ATA_HD_HCYL     0x15        /* high byte of starting cyl */
#define ATA_HD_SELECT   0x19        /* 101dhhhh , d=drive, hhhh=head */
#define ATA_HD_STATUS   0x1d        /* see status-bits */
#define ATA_HD_CONTROL  0x39

static int falconide_offsets[IDE_NR_PORTS] __initdata = {
    ATA_HD_DATA, ATA_HD_ERROR, ATA_HD_NSECTOR, ATA_HD_SECTOR, ATA_HD_LCYL,
    ATA_HD_HCYL, ATA_HD_SELECT, ATA_HD_STATUS, ATA_HD_CONTROL, -1
};


    /*
     *  falconide_intr_lock is used to obtain access to the IDE interrupt,
     *  which is shared between several drivers.
     */

int falconide_intr_lock;
EXPORT_SYMBOL(falconide_intr_lock);


    /*
     *  Probe for a Falcon IDE interface
     */

void __init falconide_init(void)
{
    if (MACH_IS_ATARI && ATARIHW_PRESENT(IDE)) {
      hw_regs_t hw;
      int index;

      ide_setup_ports(&hw, ATA_HD_BASE, falconide_offsets,
                  0, 0, NULL,
//                falconide_iops,
                  IRQ_MFP_IDE);
      index = ide_register_hw(&hw, NULL, 1, NULL);

      if (index != -1)
          printk("ide%d: Falcon IDE interface\n", index);
    }
}

Generated by  Doxygen 1.6.0   Back to index