drivers/ide/arm/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 void rapide_setup_ports(hw_regs_t *hw, void __iomem *base,
  15                                void __iomem *ctrl, unsigned int sz, int irq)
  16 {
  17         unsigned long port = (unsigned long)base;
  18         int i;
  19
  20         for (i = 0; i <= 7; i++) {
  21                 hw->io_ports_array[i] = port;
  22                 port += sz;
  23         }
  24         hw->io_ports.ctl_addr = (unsigned long)ctrl;
  25         hw->irq = irq;
  26 }
  27
  28 static int __devinit
  29 rapide_probe(struct expansion_card *ec, const struct ecard_id *id)
  30 {
  31         ide_hwif_t *hwif;
  32         void __iomem *base;
  33         int ret;
  34         u8 idx[4] = { 0xff, 0xff, 0xff, 0xff };
  35         hw_regs_t hw;
  36
  37         ret = ecard_request_resources(ec);
  38         if (ret)
  39                 goto out;
  40
  41         base = ecardm_iomap(ec, ECARD_RES_MEMC, 0, 0);
  42         if (!base) {
  43                 ret = -ENOMEM;
  44                 goto release;
  45         }
  46
  47         hwif = ide_find_port();
  48         if (hwif) {
  49                 memset(&hw, 0, sizeof(hw));
  50                 rapide_setup_ports(&hw, base, base + 0x818, 1 << 6, ec->irq);
  51                 hw.chipset = ide_generic;
  52                 hw.dev = &ec->dev;
  53
  54                 ide_init_port_hw(hwif, &hw);
  55
  56                 default_hwif_mmiops(hwif);
  57
  58                 idx[0] = hwif->index;
  59
  60                 ide_device_add(idx, NULL);
  61
  62                 ecard_set_drvdata(ec, hwif);
  63                 goto out;
  64         }
  65
  66  release:
  67         ecard_release_resources(ec);
  68  out:
  69         return ret;
  70 }
  71
  72 static void __devexit rapide_remove(struct expansion_card *ec)
  73 {
  74         ide_hwif_t *hwif = ecard_get_drvdata(ec);
  75
  76         ecard_set_drvdata(ec, NULL);
  77
  78         ide_unregister(hwif);
  79
  80         ecard_release_resources(ec);
  81 }
  82
  83 static struct ecard_id rapide_ids[] = {
  84         { MANU_YELLOWSTONE, PROD_YELLOWSTONE_RAPIDE32 },
  85         { 0xffff, 0xffff }
  86 };
  87
  88 static struct ecard_driver rapide_driver = {
  89         .probe          = rapide_probe,
  90         .remove         = __devexit_p(rapide_remove),
  91         .id_table       = rapide_ids,
  92         .drv = {
  93                 .name   = "rapide",
  94         },
  95 };
  96
  97 static int __init rapide_init(void)
  98 {
  99         return ecard_register_driver(&rapide_driver);
 100 }
 101
 102 MODULE_LICENSE("GPL");
 103 MODULE_DESCRIPTION("Yellowstone RAPIDE driver");
 104
 105 module_init(rapide_init);