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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/ide.h> |
23 | #include <linux/init.h> | |
24 | #include <linux/pci.h> | |
78829dd9 | 25 | |
78281c53 ML |
26 | #include <asm/io.h> |
27 | ||
28 | /* | |
29 | * No chip documentation has yet been found, | |
30 | * so these configuration values were pulled from | |
31 | * a running Win98 system using "debug". | |
32 | * This gives around 3MByte/second read performance, | |
33 | * which is about 2/3 of what the chip is capable of. | |
34 | * | |
35 | * There is also a 4KByte mmio region on the card, | |
36 | * but its purpose has yet to be reverse-engineered. | |
37 | */ | |
38 | static const u8 setup[] = { | |
39 | 0x00, 0x05, 0xbe, 0x01, 0x20, 0x8f, 0x00, 0x00, | |
40 | 0xa4, 0x1f, 0xb3, 0x1b, 0x00, 0x00, 0x00, 0x80, | |
41 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, | |
42 | 0x00, 0x00, 0x00, 0x00, 0xa4, 0x83, 0x02, 0x13, | |
43 | }; | |
44 | ||
ac95beed BZ |
45 | static const struct ide_port_ops delkin_cb_port_ops = { |
46 | .quirkproc = ide_undecoded_slave, | |
47 | }; | |
48 | ||
2ed0ef54 | 49 | static int delkin_cb_init_chipset(struct pci_dev *dev) |
8c061a40 BZ |
50 | { |
51 | unsigned long base = pci_resource_start(dev, 0); | |
52 | int i; | |
53 | ||
54 | outb(0x02, base + 0x1e); /* set nIEN to block interrupts */ | |
55 | inb(base + 0x17); /* read status to clear interrupts */ | |
56 | ||
57 | for (i = 0; i < sizeof(setup); ++i) { | |
58 | if (setup[i]) | |
59 | outb(setup[i], base + i); | |
60 | } | |
61 | ||
62 | return 0; | |
63 | } | |
64 | ||
1c4d4ad5 BZ |
65 | static const struct ide_port_info delkin_cb_port_info = { |
66 | .port_ops = &delkin_cb_port_ops, | |
67 | .host_flags = IDE_HFLAG_IO_32BIT | IDE_HFLAG_UNMASK_IRQS | | |
68 | IDE_HFLAG_NO_DMA, | |
255115fb | 69 | .irq_flags = IRQF_SHARED, |
8c061a40 | 70 | .init_chipset = delkin_cb_init_chipset, |
1c4d4ad5 BZ |
71 | }; |
72 | ||
78281c53 ML |
73 | static int __devinit |
74 | delkin_cb_probe (struct pci_dev *dev, const struct pci_device_id *id) | |
75 | { | |
48c3c107 | 76 | struct ide_host *host; |
78281c53 | 77 | unsigned long base; |
8c061a40 | 78 | int rc; |
c97c6aca | 79 | hw_regs_t hw, *hws[] = { &hw, NULL, NULL, NULL }; |
78281c53 ML |
80 | |
81 | rc = pci_enable_device(dev); | |
82 | if (rc) { | |
83 | printk(KERN_ERR "delkin_cb: pci_enable_device failed (%d)\n", rc); | |
84 | return rc; | |
85 | } | |
86 | rc = pci_request_regions(dev, "delkin_cb"); | |
87 | if (rc) { | |
88 | printk(KERN_ERR "delkin_cb: pci_request_regions failed (%d)\n", rc); | |
89 | pci_disable_device(dev); | |
90 | return rc; | |
91 | } | |
92 | base = pci_resource_start(dev, 0); | |
8c061a40 BZ |
93 | |
94 | delkin_cb_init_chipset(dev); | |
78281c53 ML |
95 | |
96 | memset(&hw, 0, sizeof(hw)); | |
97 | ide_std_init_ports(&hw, base + 0x10, base + 0x1e); | |
98 | hw.irq = dev->irq; | |
8a7dbb97 | 99 | hw.dev = &dev->dev; |
78281c53 ML |
100 | hw.chipset = ide_pci; /* this enables IRQ sharing */ |
101 | ||
6f904d01 BZ |
102 | rc = ide_host_add(&delkin_cb_port_info, hws, &host); |
103 | if (rc) | |
9e016a71 BZ |
104 | goto out_disable; |
105 | ||
48c3c107 | 106 | pci_set_drvdata(dev, host); |
8a7dbb97 | 107 | |
78281c53 | 108 | return 0; |
9e016a71 BZ |
109 | |
110 | out_disable: | |
7f6f33c1 | 111 | pci_release_regions(dev); |
9e016a71 | 112 | pci_disable_device(dev); |
6f904d01 | 113 | return rc; |
78281c53 ML |
114 | } |
115 | ||
116 | static void | |
117 | delkin_cb_remove (struct pci_dev *dev) | |
118 | { | |
48c3c107 | 119 | struct ide_host *host = pci_get_drvdata(dev); |
78281c53 | 120 | |
48c3c107 | 121 | ide_host_remove(host); |
f82c2b17 | 122 | |
7f6f33c1 | 123 | pci_release_regions(dev); |
78281c53 ML |
124 | pci_disable_device(dev); |
125 | } | |
126 | ||
8c061a40 BZ |
127 | #ifdef CONFIG_PM |
128 | static int delkin_cb_suspend(struct pci_dev *dev, pm_message_t state) | |
129 | { | |
130 | pci_save_state(dev); | |
131 | pci_disable_device(dev); | |
132 | pci_set_power_state(dev, pci_choose_state(dev, state)); | |
133 | ||
134 | return 0; | |
135 | } | |
136 | ||
137 | static int delkin_cb_resume(struct pci_dev *dev) | |
138 | { | |
139 | struct ide_host *host = pci_get_drvdata(dev); | |
140 | int rc; | |
141 | ||
142 | pci_set_power_state(dev, PCI_D0); | |
143 | ||
144 | rc = pci_enable_device(dev); | |
145 | if (rc) | |
146 | return rc; | |
147 | ||
148 | pci_restore_state(dev); | |
149 | pci_set_master(dev); | |
150 | ||
151 | if (host->init_chipset) | |
152 | host->init_chipset(dev); | |
153 | ||
154 | return 0; | |
155 | } | |
156 | #else | |
157 | #define delkin_cb_suspend NULL | |
158 | #define delkin_cb_resume NULL | |
159 | #endif | |
160 | ||
78281c53 ML |
161 | static struct pci_device_id delkin_cb_pci_tbl[] __devinitdata = { |
162 | { 0x1145, 0xf021, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, | |
2571b16d | 163 | { 0x1145, 0xf024, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, |
78281c53 ML |
164 | { 0, }, |
165 | }; | |
166 | MODULE_DEVICE_TABLE(pci, delkin_cb_pci_tbl); | |
167 | ||
a9ab09e2 | 168 | static struct pci_driver delkin_cb_pci_driver = { |
78281c53 ML |
169 | .name = "Delkin-ASKA-Workbit Cardbus IDE", |
170 | .id_table = delkin_cb_pci_tbl, | |
171 | .probe = delkin_cb_probe, | |
172 | .remove = delkin_cb_remove, | |
8c061a40 BZ |
173 | .suspend = delkin_cb_suspend, |
174 | .resume = delkin_cb_resume, | |
78281c53 ML |
175 | }; |
176 | ||
f4084a1d | 177 | static int __init delkin_cb_init(void) |
78281c53 | 178 | { |
a9ab09e2 | 179 | return pci_register_driver(&delkin_cb_pci_driver); |
78281c53 ML |
180 | } |
181 | ||
f4084a1d | 182 | static void __exit delkin_cb_exit(void) |
78281c53 | 183 | { |
a9ab09e2 | 184 | pci_unregister_driver(&delkin_cb_pci_driver); |
78281c53 ML |
185 | } |
186 | ||
187 | module_init(delkin_cb_init); | |
188 | module_exit(delkin_cb_exit); | |
189 | ||
190 | MODULE_AUTHOR("Mark Lord"); | |
191 | MODULE_DESCRIPTION("Basic support for Delkin/ASKA/Workbit Cardbus IDE"); | |
192 | MODULE_LICENSE("GPL"); | |
193 |