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 = IDE_DATA_OFFSET; i <= IDE_STATUS_OFFSET; i++) {
  21                 hw->io_ports[i] = port;
  22                 port += sz;
  23         }
  24         hw->io_ports[IDE_CONTROL_OFFSET] = (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((unsigned long)base);
  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                 hwif->mmio = 1;
  57                 default_hwif_mmiops(hwif);
  58
  59                 idx[0] = hwif->index;
  60
  61                 ide_device_add(idx, NULL);
  62
  63                 ecard_set_drvdata(ec, hwif);
  64                 goto out;
  65         }
  66
  67  release:
  68         ecard_release_resources(ec);
  69  out:
  70         return ret;
  71 }
  72
  73 static void __devexit rapide_remove(struct expansion_card *ec)
  74 {
  75         ide_hwif_t *hwif = ecard_get_drvdata(ec);
  76
  77         ecard_set_drvdata(ec, NULL);
  78
  79         ide_unregister(hwif->index, 0, 0);
  80
  81         ecard_release_resources(ec);
  82 }
  83
  84 static struct ecard_id rapide_ids[] = {
  85         { MANU_YELLOWSTONE, PROD_YELLOWSTONE_RAPIDE32 },
  86         { 0xffff, 0xffff }
  87 };
  88
  89 static struct ecard_driver rapide_driver = {
  90         .probe          = rapide_probe,
  91         .remove         = __devexit_p(rapide_remove),
  92         .id_table       = rapide_ids,
  93         .drv = {
  94                 .name   = "rapide",
  95         },
  96 };
  97
  98 static int __init rapide_init(void)
  99 {
 100         return ecard_register_driver(&rapide_driver);
 101 }
 102
 103 MODULE_LICENSE("GPL");
 104 MODULE_DESCRIPTION("Yellowstone RAPIDE driver");
 105
 106 module_init(rapide_init);