LXR linux-old/arch/mips64/lib/ide-std.c

   1/*
   2 * This file is subject to the terms and conditions of the GNU General Public
   3 * License.  See the file "COPYING" in the main directory of this archive
   4 * for more details.
   5 *
   6 * IDE routines for typical pc-like standard configurations.
   7 *
   8 * Copyright (C) 1998, 1999, 2001 by Ralf Baechle
   9 */
  10#include <linux/sched.h>
  11#include <linux/ide.h>
  12#include <linux/ioport.h>
  13#include <linux/hdreg.h>
  14#include <asm/ptrace.h>
  15#include <asm/hdreg.h>
  16
  17static int std_ide_default_irq(ide_ioreg_t base)
  18{
  19        switch (base) {
  20                case 0x1f0: return 14;
  21                case 0x170: return 15;
  22                case 0x1e8: return 11;
  23                case 0x168: return 10;
  24                case 0x1e0: return 8;
  25                case 0x160: return 12;
  26                default:
  27                        return 0;
  28        }
  29}
  30
  31static ide_ioreg_t std_ide_default_io_base(int index)
  32{
  33        switch (index) {
  34                case 0: return 0x1f0;
  35                case 1: return 0x170;
  36                case 2: return 0x1e8;
  37                case 3: return 0x168;
  38                case 4: return 0x1e0;
  39                case 5: return 0x160;
  40                default:
  41                        return 0;
  42        }
  43}
  44
  45static void std_ide_init_hwif_ports (hw_regs_t *hw, ide_ioreg_t data_port,
  46                                     ide_ioreg_t ctrl_port, int *irq)
  47{
  48        ide_ioreg_t reg = data_port;
  49        int i;
  50
  51        for (i = IDE_DATA_OFFSET; i <= IDE_STATUS_OFFSET; i++) {
  52                hw->io_ports[i] = reg;
  53                reg += 1;
  54        }
  55        if (ctrl_port) {
  56                hw->io_ports[IDE_CONTROL_OFFSET] = ctrl_port;
  57        } else {
  58                hw->io_ports[IDE_CONTROL_OFFSET] = hw->io_ports[IDE_DATA_OFFSET] + 0x206;
  59        }
  60        if (irq != NULL)
  61                *irq = 0;
  62        hw->io_ports[IDE_IRQ_OFFSET] = 0;
  63}
  64
  65struct ide_ops std_ide_ops = {
  66        &std_ide_default_irq,
  67        &std_ide_default_io_base,
  68        &std_ide_init_hwif_ports
  69};
  70