Commit | Line | Data |
---|---|---|
1da177e4 LT |
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); |