| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
| 2 | * linux/drivers/ide/arm/rapide.c |
| 3 | * |
| 4 | * Copyright (c) 1996-2002 Russell King. |
| 5 | */ |
| 6 | |
| 7 | #include <linux/module.h> |
| 8 | #include <linux/slab.h> |
| 9 | #include <linux/blkdev.h> |
| 10 | #include <linux/errno.h> |
| 11 | #include <linux/ide.h> |
| 12 | #include <linux/init.h> |
| 13 | |
| 14 | #include <asm/ecard.h> |
| 15 | |
| 16 | /* |
| 17 | * Something like this really should be in generic code, but isn't. |
| 18 | */ |
| 19 | static ide_hwif_t * |
| 20 | rapide_locate_hwif(void __iomem *base, void __iomem *ctrl, unsigned int sz, int irq) |
| 21 | { |
| 22 | unsigned long port = (unsigned long)base; |
| 23 | ide_hwif_t *hwif; |
| 24 | int index, i; |
| 25 | |
| 26 | for (index = 0; index < MAX_HWIFS; ++index) { |
| 27 | hwif = ide_hwifs + index; |
| 28 | if (hwif->io_ports[IDE_DATA_OFFSET] == port) |
| 29 | goto found; |
| 30 | } |
| 31 | |
| 32 | for (index = 0; index < MAX_HWIFS; ++index) { |
| 33 | hwif = ide_hwifs + index; |
| 34 | if (hwif->io_ports[IDE_DATA_OFFSET] == 0) |
| 35 | goto found; |
| 36 | } |
| 37 | |
| 38 | return NULL; |
| 39 | |
| 40 | found: |
| 41 | for (i = IDE_DATA_OFFSET; i <= IDE_STATUS_OFFSET; i++) { |
| 42 | hwif->hw.io_ports[i] = port; |
| 43 | hwif->io_ports[i] = port; |
| 44 | port += sz; |
| 45 | } |
| 46 | hwif->hw.io_ports[IDE_CONTROL_OFFSET] = (unsigned long)ctrl; |
| 47 | hwif->io_ports[IDE_CONTROL_OFFSET] = (unsigned long)ctrl; |
| 48 | hwif->hw.irq = hwif->irq = irq; |
| 49 | hwif->mmio = 2; |
| 50 | default_hwif_mmiops(hwif); |
| 51 | |
| 52 | return hwif; |
| 53 | } |
| 54 | |
| 55 | static int __devinit |
| 56 | rapide_probe(struct expansion_card *ec, const struct ecard_id *id) |
| 57 | { |
| 58 | ide_hwif_t *hwif; |
| 59 | void __iomem *base; |
| 60 | int ret; |
| 61 | |
| 62 | ret = ecard_request_resources(ec); |
| 63 | if (ret) |
| 64 | goto out; |
| 65 | |
| 66 | base = ioremap(ecard_resource_start(ec, ECARD_RES_MEMC), |
| 67 | ecard_resource_len(ec, ECARD_RES_MEMC)); |
| 68 | if (!base) { |
| 69 | ret = -ENOMEM; |
| 70 | goto release; |
| 71 | } |
| 72 | |
| 73 | hwif = rapide_locate_hwif(base, base + 0x818, 1 << 6, ec->irq); |
| 74 | if (hwif) { |
| 75 | hwif->hwif_data = base; |
| 76 | hwif->gendev.parent = &ec->dev; |
| 77 | hwif->noprobe = 0; |
| 78 | probe_hwif_init(hwif); |
| 79 | create_proc_ide_interfaces(); |
| 80 | ecard_set_drvdata(ec, hwif); |
| 81 | goto out; |
| 82 | } |
| 83 | |
| 84 | iounmap(base); |
| 85 | release: |
| 86 | ecard_release_resources(ec); |
| 87 | out: |
| 88 | return ret; |
| 89 | } |
| 90 | |
| 91 | static void __devexit rapide_remove(struct expansion_card *ec) |
| 92 | { |
| 93 | ide_hwif_t *hwif = ecard_get_drvdata(ec); |
| 94 | |
| 95 | ecard_set_drvdata(ec, NULL); |
| 96 | |
| 97 | /* there must be a better way */ |
| 98 | ide_unregister(hwif - ide_hwifs); |
| 99 | iounmap(hwif->hwif_data); |
| 100 | ecard_release_resources(ec); |
| 101 | } |
| 102 | |
| 103 | static struct ecard_id rapide_ids[] = { |
| 104 | { MANU_YELLOWSTONE, PROD_YELLOWSTONE_RAPIDE32 }, |
| 105 | { 0xffff, 0xffff } |
| 106 | }; |
| 107 | |
| 108 | static struct ecard_driver rapide_driver = { |
| 109 | .probe = rapide_probe, |
| 110 | .remove = __devexit_p(rapide_remove), |
| 111 | .id_table = rapide_ids, |
| 112 | .drv = { |
| 113 | .name = "rapide", |
| 114 | }, |
| 115 | }; |
| 116 | |
| 117 | static int __init rapide_init(void) |
| 118 | { |
| 119 | return ecard_register_driver(&rapide_driver); |
| 120 | } |
| 121 | |
| 122 | MODULE_LICENSE("GPL"); |
| 123 | MODULE_DESCRIPTION("Yellowstone RAPIDE driver"); |
| 124 | |
| 125 | module_init(rapide_init); |