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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> | |
15 | #include <linux/init.h> | |
c6de2b64 DB |
16 | #include <linux/ptrace.h> |
17 | #include <linux/slab.h> | |
18 | #include <linux/string.h> | |
19 | #include <linux/timer.h> | |
20 | #include <linux/ioport.h> | |
d052d1be | 21 | #include <linux/platform_device.h> |
c6de2b64 | 22 | |
c6de2b64 DB |
23 | #include <pcmcia/cs_types.h> |
24 | #include <pcmcia/cs.h> | |
25 | #include <pcmcia/cistpl.h> | |
26 | #include <pcmcia/cisreg.h> | |
27 | #include <pcmcia/ds.h> | |
28 | ||
325a4af6 | 29 | #include <linux/usb/sl811.h> |
c6de2b64 DB |
30 | |
31 | MODULE_AUTHOR("Botond Botyanszki"); | |
32 | MODULE_DESCRIPTION("REX-CFU1U PCMCIA driver for 2.6"); | |
33 | MODULE_LICENSE("GPL"); | |
34 | ||
35 | ||
36 | /*====================================================================*/ | |
37 | /* MACROS */ | |
38 | /*====================================================================*/ | |
39 | ||
c6de2b64 DB |
40 | #define INFO(args...) printk(KERN_INFO "sl811_cs: " args) |
41 | ||
c6de2b64 DB |
42 | /*====================================================================*/ |
43 | /* VARIABLES */ | |
44 | /*====================================================================*/ | |
45 | ||
46 | static const char driver_name[DEV_NAME_LEN] = "sl811_cs"; | |
47 | ||
c6de2b64 | 48 | typedef struct local_info_t { |
fd238232 | 49 | struct pcmcia_device *p_dev; |
c6de2b64 DB |
50 | } local_info_t; |
51 | ||
fba395ee | 52 | static void sl811_cs_release(struct pcmcia_device * link); |
cc3b4866 | 53 | |
c6de2b64 DB |
54 | /*====================================================================*/ |
55 | ||
56 | static void release_platform_dev(struct device * dev) | |
57 | { | |
9b44de20 | 58 | dev_dbg(dev, "sl811_cs platform_dev release\n"); |
c6de2b64 DB |
59 | dev->parent = NULL; |
60 | } | |
61 | ||
62 | static struct sl811_platform_data platform_data = { | |
63 | .potpg = 100, | |
64 | .power = 50, /* == 100mA */ | |
65 | // .reset = ... FIXME: invoke CF reset on the card | |
66 | }; | |
67 | ||
68 | static struct resource resources[] = { | |
69 | [0] = { | |
70 | .flags = IORESOURCE_IRQ, | |
71 | }, | |
72 | [1] = { | |
73 | // .name = "address", | |
74 | .flags = IORESOURCE_IO, | |
75 | }, | |
76 | [2] = { | |
77 | // .name = "data", | |
78 | .flags = IORESOURCE_IO, | |
79 | }, | |
80 | }; | |
81 | ||
a0c53f1d | 82 | extern struct platform_driver sl811h_driver; |
c6de2b64 DB |
83 | |
84 | static struct platform_device platform_dev = { | |
85 | .id = -1, | |
86 | .dev = { | |
87 | .platform_data = &platform_data, | |
88 | .release = release_platform_dev, | |
89 | }, | |
90 | .resource = resources, | |
91 | .num_resources = ARRAY_SIZE(resources), | |
92 | }; | |
93 | ||
d39bd564 DB |
94 | static int sl811_hc_init(struct device *parent, resource_size_t base_addr, |
95 | int irq) | |
c6de2b64 DB |
96 | { |
97 | if (platform_dev.dev.parent) | |
98 | return -EBUSY; | |
99 | platform_dev.dev.parent = parent; | |
100 | ||
101 | /* finish seting up the platform device */ | |
102 | resources[0].start = irq; | |
103 | ||
104 | resources[1].start = base_addr; | |
105 | resources[1].end = base_addr; | |
106 | ||
107 | resources[2].start = base_addr + 1; | |
108 | resources[2].end = base_addr + 1; | |
109 | ||
110 | /* The driver core will probe for us. We know sl811-hcd has been | |
c9a50cc9 DB |
111 | * initialized already because of the link order dependency created |
112 | * by referencing "sl811h_driver". | |
c6de2b64 | 113 | */ |
a0c53f1d | 114 | platform_dev.name = sl811h_driver.driver.name; |
c6de2b64 DB |
115 | return platform_device_register(&platform_dev); |
116 | } | |
117 | ||
118 | /*====================================================================*/ | |
119 | ||
fba395ee | 120 | static void sl811_cs_detach(struct pcmcia_device *link) |
c6de2b64 | 121 | { |
9b44de20 | 122 | dev_dbg(&link->dev, "sl811_cs_detach\n"); |
c6de2b64 | 123 | |
e2d40963 | 124 | sl811_cs_release(link); |
c6de2b64 | 125 | |
c6de2b64 DB |
126 | /* This points to the parent local_info_t struct */ |
127 | kfree(link->priv); | |
128 | } | |
129 | ||
fba395ee | 130 | static void sl811_cs_release(struct pcmcia_device * link) |
c6de2b64 | 131 | { |
9b44de20 | 132 | dev_dbg(&link->dev, "sl811_cs_release\n"); |
c6de2b64 | 133 | |
fba395ee | 134 | pcmcia_disable_device(link); |
c6de2b64 | 135 | platform_device_unregister(&platform_dev); |
c6de2b64 DB |
136 | } |
137 | ||
84e2d340 DB |
138 | static int sl811_cs_config_check(struct pcmcia_device *p_dev, |
139 | cistpl_cftable_entry_t *cfg, | |
8e2fc39d | 140 | cistpl_cftable_entry_t *dflt, |
ad913c11 | 141 | unsigned int vcc, |
84e2d340 DB |
142 | void *priv_data) |
143 | { | |
84e2d340 DB |
144 | if (cfg->index == 0) |
145 | return -ENODEV; | |
146 | ||
84e2d340 DB |
147 | /* Use power settings for Vcc and Vpp if present */ |
148 | /* Note that the CIS values need to be rescaled */ | |
149 | if (cfg->vcc.present & (1<<CISTPL_POWER_VNOM)) { | |
ad913c11 | 150 | if (cfg->vcc.param[CISTPL_POWER_VNOM]/10000 != vcc) |
84e2d340 | 151 | return -ENODEV; |
8e2fc39d | 152 | } else if (dflt->vcc.present & (1<<CISTPL_POWER_VNOM)) { |
ad913c11 | 153 | if (dflt->vcc.param[CISTPL_POWER_VNOM]/10000 != vcc) |
84e2d340 DB |
154 | return -ENODEV; |
155 | } | |
156 | ||
157 | if (cfg->vpp1.present & (1<<CISTPL_POWER_VNOM)) | |
158 | p_dev->conf.Vpp = | |
159 | cfg->vpp1.param[CISTPL_POWER_VNOM]/10000; | |
8e2fc39d | 160 | else if (dflt->vpp1.present & (1<<CISTPL_POWER_VNOM)) |
84e2d340 | 161 | p_dev->conf.Vpp = |
8e2fc39d | 162 | dflt->vpp1.param[CISTPL_POWER_VNOM]/10000; |
84e2d340 DB |
163 | |
164 | /* we need an interrupt */ | |
eb14120f | 165 | p_dev->conf.Attributes |= CONF_ENABLE_IRQ; |
84e2d340 DB |
166 | |
167 | /* IO window settings */ | |
168 | p_dev->io.NumPorts1 = p_dev->io.NumPorts2 = 0; | |
8e2fc39d DB |
169 | if ((cfg->io.nwin > 0) || (dflt->io.nwin > 0)) { |
170 | cistpl_io_t *io = (cfg->io.nwin) ? &cfg->io : &dflt->io; | |
84e2d340 DB |
171 | |
172 | p_dev->io.Attributes1 = IO_DATA_PATH_WIDTH_8; | |
173 | p_dev->io.IOAddrLines = io->flags & CISTPL_IO_LINES_MASK; | |
174 | p_dev->io.BasePort1 = io->win[0].base; | |
175 | p_dev->io.NumPorts1 = io->win[0].len; | |
176 | ||
177 | return pcmcia_request_io(p_dev, &p_dev->io); | |
178 | } | |
179 | pcmcia_disable_device(p_dev); | |
180 | return -ENODEV; | |
181 | } | |
182 | ||
183 | ||
15b99ac1 | 184 | static int sl811_cs_config(struct pcmcia_device *link) |
c6de2b64 | 185 | { |
dd2e5a15 | 186 | struct device *parent = &link->dev; |
9b44de20 | 187 | int ret; |
c6de2b64 | 188 | |
9b44de20 | 189 | dev_dbg(&link->dev, "sl811_cs_config\n"); |
c6de2b64 | 190 | |
ad913c11 DB |
191 | if (pcmcia_loop_config(link, sl811_cs_config_check, NULL)) |
192 | goto failed; | |
c6de2b64 DB |
193 | |
194 | /* require an IRQ and two registers */ | |
195 | if (!link->io.NumPorts1 || link->io.NumPorts1 < 2) | |
ad913c11 | 196 | goto failed; |
eb14120f DB |
197 | |
198 | if (!link->irq) | |
ad913c11 | 199 | goto failed; |
c6de2b64 | 200 | |
9b44de20 DB |
201 | ret = pcmcia_request_configuration(link, &link->conf); |
202 | if (ret) | |
203 | goto failed; | |
c6de2b64 | 204 | |
ded6a1a3 DB |
205 | dev_info(&link->dev, "index 0x%02x: ", |
206 | link->conf.ConfigIndex); | |
70294b46 DB |
207 | if (link->conf.Vpp) |
208 | printk(", Vpp %d.%d", link->conf.Vpp/10, link->conf.Vpp%10); | |
eb14120f | 209 | printk(", irq %d", link->irq); |
c6de2b64 DB |
210 | printk(", io 0x%04x-0x%04x", link->io.BasePort1, |
211 | link->io.BasePort1+link->io.NumPorts1-1); | |
212 | printk("\n"); | |
213 | ||
eb14120f | 214 | if (sl811_hc_init(parent, link->io.BasePort1, link->irq) |
c6de2b64 | 215 | < 0) { |
ad913c11 DB |
216 | failed: |
217 | printk(KERN_WARNING "sl811_cs_config failed\n"); | |
c6de2b64 | 218 | sl811_cs_release(link); |
15b99ac1 | 219 | return -ENODEV; |
c6de2b64 | 220 | } |
15b99ac1 | 221 | return 0; |
c6de2b64 DB |
222 | } |
223 | ||
15b99ac1 | 224 | static int sl811_cs_probe(struct pcmcia_device *link) |
c6de2b64 DB |
225 | { |
226 | local_info_t *local; | |
c6de2b64 | 227 | |
dd00cc48 | 228 | local = kzalloc(sizeof(local_info_t), GFP_KERNEL); |
c6de2b64 | 229 | if (!local) |
f8cfa618 | 230 | return -ENOMEM; |
fba395ee | 231 | local->p_dev = link; |
c6de2b64 DB |
232 | link->priv = local; |
233 | ||
c6de2b64 | 234 | link->conf.Attributes = 0; |
c6de2b64 DB |
235 | link->conf.IntType = INT_MEMORY_AND_IO; |
236 | ||
15b99ac1 | 237 | return sl811_cs_config(link); |
c6de2b64 DB |
238 | } |
239 | ||
22f3a8f5 DB |
240 | static struct pcmcia_device_id sl811_ids[] = { |
241 | PCMCIA_DEVICE_MANF_CARD(0xc015, 0x0001), /* RATOC USB HOST CF+ Card */ | |
242 | PCMCIA_DEVICE_NULL, | |
243 | }; | |
244 | MODULE_DEVICE_TABLE(pcmcia, sl811_ids); | |
245 | ||
c6de2b64 DB |
246 | static struct pcmcia_driver sl811_cs_driver = { |
247 | .owner = THIS_MODULE, | |
248 | .drv = { | |
249 | .name = (char *)driver_name, | |
250 | }, | |
15b99ac1 | 251 | .probe = sl811_cs_probe, |
cc3b4866 | 252 | .remove = sl811_cs_detach, |
22f3a8f5 | 253 | .id_table = sl811_ids, |
c6de2b64 DB |
254 | }; |
255 | ||
256 | /*====================================================================*/ | |
257 | ||
258 | static int __init init_sl811_cs(void) | |
259 | { | |
260 | return pcmcia_register_driver(&sl811_cs_driver); | |
261 | } | |
262 | module_init(init_sl811_cs); | |
263 | ||
264 | static void __exit exit_sl811_cs(void) | |
265 | { | |
266 | pcmcia_unregister_driver(&sl811_cs_driver); | |
267 | } | |
268 | module_exit(exit_sl811_cs); |