Commit | Line | Data |
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c6de2b64 DB |
1 | /* |
2 | * PCMCIA driver for SL811HS (as found in REX-CFU1U) | |
3 | * Filename: sl811_cs.c | |
4 | * Author: Yukio Yamamoto | |
5 | * | |
6 | * Port to sl811-hcd and 2.6.x by | |
7 | * Botond Botyanszki <boti@rocketmail.com> | |
8 | * Simon Pickering | |
9 | * | |
10 | * Last update: 2005-05-12 | |
11 | */ | |
12 | ||
13 | #include <linux/kernel.h> | |
14 | #include <linux/module.h> | |
c6de2b64 DB |
15 | #include <linux/ptrace.h> |
16 | #include <linux/slab.h> | |
17 | #include <linux/string.h> | |
18 | #include <linux/timer.h> | |
19 | #include <linux/ioport.h> | |
d052d1be | 20 | #include <linux/platform_device.h> |
c6de2b64 | 21 | |
c6de2b64 DB |
22 | #include <pcmcia/cistpl.h> |
23 | #include <pcmcia/cisreg.h> | |
24 | #include <pcmcia/ds.h> | |
25 | ||
325a4af6 | 26 | #include <linux/usb/sl811.h> |
c6de2b64 DB |
27 | |
28 | MODULE_AUTHOR("Botond Botyanszki"); | |
29 | MODULE_DESCRIPTION("REX-CFU1U PCMCIA driver for 2.6"); | |
30 | MODULE_LICENSE("GPL"); | |
31 | ||
32 | ||
33 | /*====================================================================*/ | |
34 | /* MACROS */ | |
35 | /*====================================================================*/ | |
36 | ||
c6de2b64 DB |
37 | #define INFO(args...) printk(KERN_INFO "sl811_cs: " args) |
38 | ||
c6de2b64 DB |
39 | /*====================================================================*/ |
40 | /* VARIABLES */ | |
41 | /*====================================================================*/ | |
42 | ||
c6de2b64 | 43 | typedef struct local_info_t { |
fd238232 | 44 | struct pcmcia_device *p_dev; |
c6de2b64 DB |
45 | } local_info_t; |
46 | ||
fba395ee | 47 | static void sl811_cs_release(struct pcmcia_device * link); |
cc3b4866 | 48 | |
c6de2b64 DB |
49 | /*====================================================================*/ |
50 | ||
51 | static void release_platform_dev(struct device * dev) | |
52 | { | |
9b44de20 | 53 | dev_dbg(dev, "sl811_cs platform_dev release\n"); |
c6de2b64 DB |
54 | dev->parent = NULL; |
55 | } | |
56 | ||
57 | static struct sl811_platform_data platform_data = { | |
58 | .potpg = 100, | |
59 | .power = 50, /* == 100mA */ | |
60 | // .reset = ... FIXME: invoke CF reset on the card | |
61 | }; | |
62 | ||
63 | static struct resource resources[] = { | |
64 | [0] = { | |
65 | .flags = IORESOURCE_IRQ, | |
66 | }, | |
67 | [1] = { | |
68 | // .name = "address", | |
69 | .flags = IORESOURCE_IO, | |
70 | }, | |
71 | [2] = { | |
72 | // .name = "data", | |
73 | .flags = IORESOURCE_IO, | |
74 | }, | |
75 | }; | |
76 | ||
a0c53f1d | 77 | extern struct platform_driver sl811h_driver; |
c6de2b64 DB |
78 | |
79 | static struct platform_device platform_dev = { | |
80 | .id = -1, | |
81 | .dev = { | |
82 | .platform_data = &platform_data, | |
83 | .release = release_platform_dev, | |
84 | }, | |
85 | .resource = resources, | |
86 | .num_resources = ARRAY_SIZE(resources), | |
87 | }; | |
88 | ||
d39bd564 DB |
89 | static int sl811_hc_init(struct device *parent, resource_size_t base_addr, |
90 | int irq) | |
c6de2b64 DB |
91 | { |
92 | if (platform_dev.dev.parent) | |
93 | return -EBUSY; | |
94 | platform_dev.dev.parent = parent; | |
95 | ||
96 | /* finish seting up the platform device */ | |
97 | resources[0].start = irq; | |
98 | ||
99 | resources[1].start = base_addr; | |
100 | resources[1].end = base_addr; | |
101 | ||
102 | resources[2].start = base_addr + 1; | |
103 | resources[2].end = base_addr + 1; | |
104 | ||
105 | /* The driver core will probe for us. We know sl811-hcd has been | |
c9a50cc9 DB |
106 | * initialized already because of the link order dependency created |
107 | * by referencing "sl811h_driver". | |
c6de2b64 | 108 | */ |
a0c53f1d | 109 | platform_dev.name = sl811h_driver.driver.name; |
c6de2b64 DB |
110 | return platform_device_register(&platform_dev); |
111 | } | |
112 | ||
113 | /*====================================================================*/ | |
114 | ||
fba395ee | 115 | static void sl811_cs_detach(struct pcmcia_device *link) |
c6de2b64 | 116 | { |
9b44de20 | 117 | dev_dbg(&link->dev, "sl811_cs_detach\n"); |
c6de2b64 | 118 | |
e2d40963 | 119 | sl811_cs_release(link); |
c6de2b64 | 120 | |
c6de2b64 DB |
121 | /* This points to the parent local_info_t struct */ |
122 | kfree(link->priv); | |
123 | } | |
124 | ||
fba395ee | 125 | static void sl811_cs_release(struct pcmcia_device * link) |
c6de2b64 | 126 | { |
9b44de20 | 127 | dev_dbg(&link->dev, "sl811_cs_release\n"); |
c6de2b64 | 128 | |
fba395ee | 129 | pcmcia_disable_device(link); |
c6de2b64 | 130 | platform_device_unregister(&platform_dev); |
c6de2b64 DB |
131 | } |
132 | ||
00990e7c | 133 | static int sl811_cs_config_check(struct pcmcia_device *p_dev, void *priv_data) |
84e2d340 | 134 | { |
00990e7c DB |
135 | if (p_dev->config_index == 0) |
136 | return -EINVAL; | |
137 | ||
138 | return pcmcia_request_io(p_dev); | |
84e2d340 DB |
139 | } |
140 | ||
141 | ||
15b99ac1 | 142 | static int sl811_cs_config(struct pcmcia_device *link) |
c6de2b64 | 143 | { |
dd2e5a15 | 144 | struct device *parent = &link->dev; |
9b44de20 | 145 | int ret; |
c6de2b64 | 146 | |
9b44de20 | 147 | dev_dbg(&link->dev, "sl811_cs_config\n"); |
c6de2b64 | 148 | |
440eed43 | 149 | link->config_flags |= CONF_ENABLE_IRQ | CONF_AUTO_SET_VPP | |
00990e7c | 150 | CONF_AUTO_CHECK_VCC | CONF_AUTO_SET_IO; |
440eed43 | 151 | |
ad913c11 DB |
152 | if (pcmcia_loop_config(link, sl811_cs_config_check, NULL)) |
153 | goto failed; | |
c6de2b64 DB |
154 | |
155 | /* require an IRQ and two registers */ | |
9a017a91 | 156 | if (resource_size(link->resource[0]) < 2) |
ad913c11 | 157 | goto failed; |
eb14120f DB |
158 | |
159 | if (!link->irq) | |
ad913c11 | 160 | goto failed; |
c6de2b64 | 161 | |
1ac71e5a | 162 | ret = pcmcia_enable_device(link); |
9b44de20 DB |
163 | if (ret) |
164 | goto failed; | |
c6de2b64 | 165 | |
9a017a91 | 166 | if (sl811_hc_init(parent, link->resource[0]->start, link->irq) |
c6de2b64 | 167 | < 0) { |
ad913c11 DB |
168 | failed: |
169 | printk(KERN_WARNING "sl811_cs_config failed\n"); | |
c6de2b64 | 170 | sl811_cs_release(link); |
15b99ac1 | 171 | return -ENODEV; |
c6de2b64 | 172 | } |
15b99ac1 | 173 | return 0; |
c6de2b64 DB |
174 | } |
175 | ||
15b99ac1 | 176 | static int sl811_cs_probe(struct pcmcia_device *link) |
c6de2b64 DB |
177 | { |
178 | local_info_t *local; | |
c6de2b64 | 179 | |
dd00cc48 | 180 | local = kzalloc(sizeof(local_info_t), GFP_KERNEL); |
c6de2b64 | 181 | if (!local) |
f8cfa618 | 182 | return -ENOMEM; |
fba395ee | 183 | local->p_dev = link; |
c6de2b64 DB |
184 | link->priv = local; |
185 | ||
15b99ac1 | 186 | return sl811_cs_config(link); |
c6de2b64 DB |
187 | } |
188 | ||
25f8f54f | 189 | static const struct pcmcia_device_id sl811_ids[] = { |
22f3a8f5 DB |
190 | PCMCIA_DEVICE_MANF_CARD(0xc015, 0x0001), /* RATOC USB HOST CF+ Card */ |
191 | PCMCIA_DEVICE_NULL, | |
192 | }; | |
193 | MODULE_DEVICE_TABLE(pcmcia, sl811_ids); | |
194 | ||
c6de2b64 DB |
195 | static struct pcmcia_driver sl811_cs_driver = { |
196 | .owner = THIS_MODULE, | |
2e9b981a | 197 | .name = "sl811_cs", |
15b99ac1 | 198 | .probe = sl811_cs_probe, |
cc3b4866 | 199 | .remove = sl811_cs_detach, |
22f3a8f5 | 200 | .id_table = sl811_ids, |
c6de2b64 | 201 | }; |
4c7a45fb | 202 | module_pcmcia_driver(sl811_cs_driver); |