drivers/ide/ide-default.c

   1 /*
   2  *      ide-default             -       Driver for unbound ide devices
   3  *
   4  *      This provides a clean way to bind a device to default operations
   5  *      by having an actual driver class that rather than special casing
   6  *      "no driver" all over the IDE code
   7  *
   8  *      Copyright (C) 2003, Red Hat <alan@redhat.com>
   9  */
  10
  11 #include <linux/config.h>
  12 #include <linux/module.h>
  13 #include <linux/types.h>
  14 #include <linux/string.h>
  15 #include <linux/kernel.h>
  16 #include <linux/delay.h>
  17 #include <linux/timer.h>
  18 #include <linux/mm.h>
  19 #include <linux/interrupt.h>
  20 #include <linux/major.h>
  21 #include <linux/errno.h>
  22 #include <linux/genhd.h>
  23 #include <linux/slab.h>
  24 #include <linux/cdrom.h>
  25 #include <linux/ide.h>
  26
  27 #include <asm/byteorder.h>
  28 #include <asm/irq.h>
  29 #include <asm/uaccess.h>
  30 #include <asm/io.h>
  31 #include <asm/unaligned.h>
  32 #include <asm/bitops.h>
  33
  34 #define IDEDEFAULT_VERSION      "0.9.newide"
  35 /*
  36  *      Driver initialization.
  37  */
  38
  39 static int idedefault_attach(ide_drive_t *drive);
  40
  41 /*
  42  *      IDE subdriver functions, registered with ide.c
  43  *
  44  *      idedefault *must* support DMA because it will be
  45  *      attached before the other drivers are loaded and
  46  *      we don't want to lose the DMA status at probe
  47  *      time.
  48  */
  49
  50 ide_driver_t idedefault_driver = {
  51         .name           =       "ide-default",
  52         .version        =       IDEDEFAULT_VERSION,
  53         .attach         =       idedefault_attach,
  54         .supports_dma   =       1,
  55         .drives         =       LIST_HEAD_INIT(idedefault_driver.drives)
  56 };
  57
  58 static int idedefault_attach (ide_drive_t *drive)
  59 {
  60         if (ide_register_subdriver(drive,
  61                         &idedefault_driver, IDE_SUBDRIVER_VERSION)) {
  62                 printk(KERN_ERR "ide-default: %s: Failed to register the "
  63                         "driver with ide.c\n", drive->name);
  64                 return 1;
  65         }
  66         return 0;
  67 }
  68
  69 MODULE_DESCRIPTION("IDE Default Driver");
  70
  71 MODULE_LICENSE("GPL");