arch/mips/lib/ide-no.c

   1 /* $Id: ide-no.c,v 1.2 1998/06/30 00:21:54 ralf Exp $
   2  *
   3  * This file is subject to the terms and conditions of the GNU General Public
   4  * License.  See the file "COPYING" in the main directory of this archive
   5  * for more details.
   6  *
   7  * Stub IDE routines to keep Linux from crashing on machine which don't
   8  * have IDE like the Indy.
   9  *
  10  * Copyright (C) 1998, 1999 by Ralf Baechle
  11  */
  12 #include <linux/hdreg.h>
  13 #include <linux/kernel.h>
  14 #include <linux/ide.h>
  15 #include <asm/hdreg.h>
  16 #include <asm/ptrace.h>
  17
  18 static int no_ide_default_irq(ide_ioreg_t base)
  19 {
  20         return 0;
  21 }
  22
  23 static ide_ioreg_t no_ide_default_io_base(int index)
  24 {
  25         return 0;
  26 }
  27
  28 static void no_ide_init_hwif_ports (hw_regs_t *hw, ide_ioreg_t data_port,
  29                                     ide_ioreg_t ctrl_port, int *irq)
  30 {
  31 }
  32
  33 static int no_ide_request_irq(unsigned int irq,
  34                               void (*handler)(int,void *, struct pt_regs *),
  35                               unsigned long flags, const char *device,
  36                               void *dev_id)
  37 {
  38         panic("no_no_ide_request_irq called - shouldn't happen");
  39 }
  40
  41 static void no_ide_free_irq(unsigned int irq, void *dev_id)
  42 {
  43         panic("no_ide_free_irq called - shouldn't happen");
  44 }
  45
  46 static int no_ide_check_region(ide_ioreg_t from, unsigned int extent)
  47 {
  48         panic("no_ide_check_region called - shouldn't happen");
  49 }
  50
  51 static void no_ide_request_region(ide_ioreg_t from, unsigned int extent,
  52                                     const char *name)
  53 {
  54         panic("no_ide_request_region called - shouldn't happen");
  55 }
  56
  57 static void no_ide_release_region(ide_ioreg_t from, unsigned int extent)
  58 {
  59         panic("no_ide_release_region called - shouldn't happen");
  60 }
  61
  62 struct ide_ops no_ide_ops = {
  63         &no_ide_default_irq,
  64         &no_ide_default_io_base,
  65         &no_ide_init_hwif_ports,
  66         &no_ide_request_irq,
  67         &no_ide_free_irq,
  68         &no_ide_check_region,
  69         &no_ide_request_region,
  70         &no_ide_release_region
  71 };