drivers/ide/rapide.c

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