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Commit | Line | Data |
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78281c53 | 1 | /* |
78281c53 ML |
2 | * Created 20 Oct 2004 by Mark Lord |
3 | * | |
4 | * Basic support for Delkin/ASKA/Workbit Cardbus CompactFlash adapter | |
5 | * | |
6 | * Modeled after the 16-bit PCMCIA driver: ide-cs.c | |
7 | * | |
8 | * This is slightly peculiar, in that it is a PCI driver, | |
9 | * but is NOT an IDE PCI driver -- the IDE layer does not directly | |
10 | * support hot insertion/removal of PCI interfaces, so this driver | |
11 | * is unable to use the IDE PCI interfaces. Instead, it uses the | |
12 | * same interfaces as the ide-cs (PCMCIA) driver uses. | |
13 | * On the plus side, the driver is also smaller/simpler this way. | |
14 | * | |
15 | * This file is subject to the terms and conditions of the GNU General Public | |
16 | * License. See the file COPYING in the main directory of this archive for | |
17 | * more details. | |
18 | */ | |
78829dd9 | 19 | |
78281c53 ML |
20 | #include <linux/types.h> |
21 | #include <linux/module.h> | |
78281c53 ML |
22 | #include <linux/hdreg.h> |
23 | #include <linux/ide.h> | |
24 | #include <linux/init.h> | |
25 | #include <linux/pci.h> | |
78829dd9 | 26 | |
78281c53 ML |
27 | #include <asm/io.h> |
28 | ||
29 | /* | |
30 | * No chip documentation has yet been found, | |
31 | * so these configuration values were pulled from | |
32 | * a running Win98 system using "debug". | |
33 | * This gives around 3MByte/second read performance, | |
34 | * which is about 2/3 of what the chip is capable of. | |
35 | * | |
36 | * There is also a 4KByte mmio region on the card, | |
37 | * but its purpose has yet to be reverse-engineered. | |
38 | */ | |
39 | static const u8 setup[] = { | |
40 | 0x00, 0x05, 0xbe, 0x01, 0x20, 0x8f, 0x00, 0x00, | |
41 | 0xa4, 0x1f, 0xb3, 0x1b, 0x00, 0x00, 0x00, 0x80, | |
42 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, | |
43 | 0x00, 0x00, 0x00, 0x00, 0xa4, 0x83, 0x02, 0x13, | |
44 | }; | |
45 | ||
46 | static int __devinit | |
47 | delkin_cb_probe (struct pci_dev *dev, const struct pci_device_id *id) | |
48 | { | |
49 | unsigned long base; | |
50 | hw_regs_t hw; | |
51 | ide_hwif_t *hwif = NULL; | |
52 | ide_drive_t *drive; | |
53 | int i, rc; | |
9e016a71 | 54 | u8 idx[4] = { 0xff, 0xff, 0xff, 0xff }; |
78281c53 ML |
55 | |
56 | rc = pci_enable_device(dev); | |
57 | if (rc) { | |
58 | printk(KERN_ERR "delkin_cb: pci_enable_device failed (%d)\n", rc); | |
59 | return rc; | |
60 | } | |
61 | rc = pci_request_regions(dev, "delkin_cb"); | |
62 | if (rc) { | |
63 | printk(KERN_ERR "delkin_cb: pci_request_regions failed (%d)\n", rc); | |
64 | pci_disable_device(dev); | |
65 | return rc; | |
66 | } | |
67 | base = pci_resource_start(dev, 0); | |
68 | outb(0x02, base + 0x1e); /* set nIEN to block interrupts */ | |
69 | inb(base + 0x17); /* read status to clear interrupts */ | |
70 | for (i = 0; i < sizeof(setup); ++i) { | |
71 | if (setup[i]) | |
72 | outb(setup[i], base + i); | |
73 | } | |
78281c53 ML |
74 | |
75 | memset(&hw, 0, sizeof(hw)); | |
76 | ide_std_init_ports(&hw, base + 0x10, base + 0x1e); | |
77 | hw.irq = dev->irq; | |
78 | hw.chipset = ide_pci; /* this enables IRQ sharing */ | |
79 | ||
59bff5ba | 80 | hwif = ide_find_port(); |
9e016a71 BZ |
81 | if (hwif == NULL) |
82 | goto out_disable; | |
83 | ||
84 | i = hwif->index; | |
85 | ||
86 | if (hwif->present) | |
93de00fd | 87 | ide_unregister(i); |
2304dc64 | 88 | else |
9e016a71 BZ |
89 | ide_init_port_data(hwif, i); |
90 | ||
91 | ide_init_port_hw(hwif, &hw); | |
7f6f33c1 | 92 | hwif->mmio = 1; |
9e016a71 BZ |
93 | hwif->quirkproc = &ide_undecoded_slave; |
94 | ||
95 | idx[0] = i; | |
96 | ||
97 | ide_device_add(idx, NULL); | |
98 | ||
99 | if (!hwif->present) | |
100 | goto out_disable; | |
101 | ||
78281c53 | 102 | pci_set_drvdata(dev, hwif); |
36501650 | 103 | hwif->dev = &dev->dev; |
78281c53 ML |
104 | drive = &hwif->drives[0]; |
105 | if (drive->present) { | |
106 | drive->io_32bit = 1; | |
107 | drive->unmask = 1; | |
108 | } | |
109 | return 0; | |
9e016a71 BZ |
110 | |
111 | out_disable: | |
112 | printk(KERN_ERR "delkin_cb: no IDE devices found\n"); | |
7f6f33c1 | 113 | pci_release_regions(dev); |
9e016a71 BZ |
114 | pci_disable_device(dev); |
115 | return -ENODEV; | |
78281c53 ML |
116 | } |
117 | ||
118 | static void | |
119 | delkin_cb_remove (struct pci_dev *dev) | |
120 | { | |
121 | ide_hwif_t *hwif = pci_get_drvdata(dev); | |
122 | ||
123 | if (hwif) | |
93de00fd | 124 | ide_unregister(hwif->index); |
f82c2b17 | 125 | |
7f6f33c1 | 126 | pci_release_regions(dev); |
78281c53 ML |
127 | pci_disable_device(dev); |
128 | } | |
129 | ||
130 | static struct pci_device_id delkin_cb_pci_tbl[] __devinitdata = { | |
131 | { 0x1145, 0xf021, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, | |
2571b16d | 132 | { 0x1145, 0xf024, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, |
78281c53 ML |
133 | { 0, }, |
134 | }; | |
135 | MODULE_DEVICE_TABLE(pci, delkin_cb_pci_tbl); | |
136 | ||
137 | static struct pci_driver driver = { | |
138 | .name = "Delkin-ASKA-Workbit Cardbus IDE", | |
139 | .id_table = delkin_cb_pci_tbl, | |
140 | .probe = delkin_cb_probe, | |
141 | .remove = delkin_cb_remove, | |
142 | }; | |
143 | ||
144 | static int | |
145 | delkin_cb_init (void) | |
146 | { | |
e76ecf86 | 147 | return pci_register_driver(&driver); |
78281c53 ML |
148 | } |
149 | ||
150 | static void | |
151 | delkin_cb_exit (void) | |
152 | { | |
153 | pci_unregister_driver(&driver); | |
154 | } | |
155 | ||
156 | module_init(delkin_cb_init); | |
157 | module_exit(delkin_cb_exit); | |
158 | ||
159 | MODULE_AUTHOR("Mark Lord"); | |
160 | MODULE_DESCRIPTION("Basic support for Delkin/ASKA/Workbit Cardbus IDE"); | |
161 | MODULE_LICENSE("GPL"); | |
162 |