drivers/ide/rapide.c

   1 /*
   2  * Copyright (c) 1996-2002 Russell King.
   3  */
   4
   5 #include <linux/module.h>
   6 #include <linux/slab.h>
   7 #include <linux/blkdev.h>
   8 #include <linux/errno.h>
   9 #include <linux/ide.h>
  10 #include <linux/init.h>
  11
  12 #include <asm/ecard.h>
  13
  14 static const struct ide_port_info rapide_port_info = {
  15         .host_flags             = IDE_HFLAG_MMIO | IDE_HFLAG_NO_DMA,
  16         .chipset                = ide_generic,
  17 };
  18
  19 static void rapide_setup_ports(struct ide_hw *hw, void __iomem *base,
  20                                void __iomem *ctrl, unsigned int sz, int irq)
  21 {
  22         unsigned long port = (unsigned long)base;
  23         int i;
  24
  25         for (i = 0; i <= 7; i++) {
  26                 hw->io_ports_array[i] = port;
  27                 port += sz;
  28         }
  29         hw->io_ports.ctl_addr = (unsigned long)ctrl;
  30         hw->irq = irq;
  31 }
  32
  33 static int __devinit
  34 rapide_probe(struct expansion_card *ec, const struct ecard_id *id)
  35 {
  36         void __iomem *base;
  37         struct ide_host *host;
  38         int ret;
  39         struct ide_hw hw, *hws[] = { &hw };
  40
  41         ret = ecard_request_resources(ec);
  42         if (ret)
  43                 goto out;
  44
  45         base = ecardm_iomap(ec, ECARD_RES_MEMC, 0, 0);
  46         if (!base) {
  47                 ret = -ENOMEM;
  48                 goto release;
  49         }
  50
  51         memset(&hw, 0, sizeof(hw));
  52         rapide_setup_ports(&hw, base, base + 0x818, 1 << 6, ec->irq);
  53         hw.dev = &ec->dev;
  54
  55         ret = ide_host_add(&rapide_port_info, hws, 1, &host);
  56         if (ret)
  57                 goto release;
  58
  59         ecard_set_drvdata(ec, host);
  60         goto out;
  61
  62  release:
  63         ecard_release_resources(ec);
  64  out:
  65         return ret;
  66 }
  67
  68 static void __devexit rapide_remove(struct expansion_card *ec)
  69 {
  70         struct ide_host *host = ecard_get_drvdata(ec);
  71
  72         ecard_set_drvdata(ec, NULL);
  73
  74         ide_host_remove(host);
  75
  76         ecard_release_resources(ec);
  77 }
  78
  79 static struct ecard_id rapide_ids[] = {
  80         { MANU_YELLOWSTONE, PROD_YELLOWSTONE_RAPIDE32 },
  81         { 0xffff, 0xffff }
  82 };
  83
  84 static struct ecard_driver rapide_driver = {
  85         .probe          = rapide_probe,
  86         .remove         = __devexit_p(rapide_remove),
  87         .id_table       = rapide_ids,
  88         .drv = {
  89                 .name   = "rapide",
  90         },
  91 };
  92
  93 static int __init rapide_init(void)
  94 {
  95         return ecard_register_driver(&rapide_driver);
  96 }
  97
  98 static void __exit rapide_exit(void)
  99 {
 100         ecard_remove_driver(&rapide_driver);
 101 }
 102
 103 MODULE_LICENSE("GPL");
 104 MODULE_DESCRIPTION("Yellowstone RAPIDE driver");
 105
 106 module_init(rapide_init);
 107 module_exit(rapide_exit);