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1da177e4 LT |
1 | /* |
2 | * socket_sysfs.c -- most of socket-related sysfs output | |
3 | * | |
4 | * This program is free software; you can redistribute it and/or modify | |
5 | * it under the terms of the GNU General Public License version 2 as | |
6 | * published by the Free Software Foundation. | |
7 | * | |
8 | * (C) 2003 - 2004 Dominik Brodowski | |
9 | */ | |
10 | ||
11 | #include <linux/module.h> | |
12 | #include <linux/moduleparam.h> | |
13 | #include <linux/init.h> | |
14 | #include <linux/kernel.h> | |
15 | #include <linux/config.h> | |
16 | #include <linux/string.h> | |
17 | #include <linux/major.h> | |
18 | #include <linux/errno.h> | |
19 | #include <linux/slab.h> | |
20 | #include <linux/mm.h> | |
21 | #include <linux/interrupt.h> | |
22 | #include <linux/timer.h> | |
23 | #include <linux/ioport.h> | |
24 | #include <linux/delay.h> | |
25 | #include <linux/pm.h> | |
26 | #include <linux/pci.h> | |
27 | #include <linux/device.h> | |
28 | #include <asm/system.h> | |
29 | #include <asm/irq.h> | |
30 | ||
31 | #define IN_CARD_SERVICES | |
1da177e4 LT |
32 | #include <pcmcia/cs_types.h> |
33 | #include <pcmcia/ss.h> | |
34 | #include <pcmcia/cs.h> | |
35 | #include <pcmcia/bulkmem.h> | |
36 | #include <pcmcia/cistpl.h> | |
37 | #include <pcmcia/cisreg.h> | |
38 | #include <pcmcia/ds.h> | |
39 | #include "cs_internal.h" | |
40 | ||
41 | #define to_socket(_dev) container_of(_dev, struct pcmcia_socket, dev) | |
42 | ||
43 | static ssize_t pccard_show_type(struct class_device *dev, char *buf) | |
44 | { | |
45 | int val; | |
46 | struct pcmcia_socket *s = to_socket(dev); | |
47 | ||
48 | if (!(s->state & SOCKET_PRESENT)) | |
49 | return -ENODEV; | |
50 | s->ops->get_status(s, &val); | |
51 | if (val & SS_CARDBUS) | |
52 | return sprintf(buf, "32-bit\n"); | |
53 | if (val & SS_DETECT) | |
54 | return sprintf(buf, "16-bit\n"); | |
55 | return sprintf(buf, "invalid\n"); | |
56 | } | |
57 | static CLASS_DEVICE_ATTR(card_type, 0400, pccard_show_type, NULL); | |
58 | ||
59 | static ssize_t pccard_show_voltage(struct class_device *dev, char *buf) | |
60 | { | |
61 | int val; | |
62 | struct pcmcia_socket *s = to_socket(dev); | |
63 | ||
64 | if (!(s->state & SOCKET_PRESENT)) | |
65 | return -ENODEV; | |
66 | s->ops->get_status(s, &val); | |
67 | if (val & SS_3VCARD) | |
68 | return sprintf(buf, "3.3V\n"); | |
69 | if (val & SS_XVCARD) | |
70 | return sprintf(buf, "X.XV\n"); | |
71 | return sprintf(buf, "5.0V\n"); | |
72 | } | |
73 | static CLASS_DEVICE_ATTR(card_voltage, 0400, pccard_show_voltage, NULL); | |
74 | ||
75 | static ssize_t pccard_show_vpp(struct class_device *dev, char *buf) | |
76 | { | |
77 | struct pcmcia_socket *s = to_socket(dev); | |
78 | if (!(s->state & SOCKET_PRESENT)) | |
79 | return -ENODEV; | |
80 | return sprintf(buf, "%d.%dV\n", s->socket.Vpp / 10, s->socket.Vpp % 10); | |
81 | } | |
82 | static CLASS_DEVICE_ATTR(card_vpp, 0400, pccard_show_vpp, NULL); | |
83 | ||
84 | static ssize_t pccard_show_vcc(struct class_device *dev, char *buf) | |
85 | { | |
86 | struct pcmcia_socket *s = to_socket(dev); | |
87 | if (!(s->state & SOCKET_PRESENT)) | |
88 | return -ENODEV; | |
89 | return sprintf(buf, "%d.%dV\n", s->socket.Vcc / 10, s->socket.Vcc % 10); | |
90 | } | |
91 | static CLASS_DEVICE_ATTR(card_vcc, 0400, pccard_show_vcc, NULL); | |
92 | ||
93 | ||
94 | static ssize_t pccard_store_insert(struct class_device *dev, const char *buf, size_t count) | |
95 | { | |
96 | ssize_t ret; | |
97 | struct pcmcia_socket *s = to_socket(dev); | |
98 | ||
99 | if (!count) | |
100 | return -EINVAL; | |
101 | ||
102 | ret = pcmcia_insert_card(s); | |
103 | ||
104 | return ret ? ret : count; | |
105 | } | |
106 | static CLASS_DEVICE_ATTR(card_insert, 0200, NULL, pccard_store_insert); | |
107 | ||
108 | static ssize_t pccard_store_eject(struct class_device *dev, const char *buf, size_t count) | |
109 | { | |
110 | ssize_t ret; | |
111 | struct pcmcia_socket *s = to_socket(dev); | |
112 | ||
113 | if (!count) | |
114 | return -EINVAL; | |
115 | ||
116 | ret = pcmcia_eject_card(s); | |
117 | ||
118 | return ret ? ret : count; | |
119 | } | |
120 | static CLASS_DEVICE_ATTR(card_eject, 0200, NULL, pccard_store_eject); | |
121 | ||
122 | ||
123 | static ssize_t pccard_show_irq_mask(struct class_device *dev, char *buf) | |
124 | { | |
125 | struct pcmcia_socket *s = to_socket(dev); | |
126 | return sprintf(buf, "0x%04x\n", s->irq_mask); | |
127 | } | |
128 | ||
129 | static ssize_t pccard_store_irq_mask(struct class_device *dev, const char *buf, size_t count) | |
130 | { | |
131 | ssize_t ret; | |
132 | struct pcmcia_socket *s = to_socket(dev); | |
133 | u32 mask; | |
134 | ||
135 | if (!count) | |
136 | return -EINVAL; | |
137 | ||
138 | ret = sscanf (buf, "0x%x\n", &mask); | |
139 | ||
140 | if (ret == 1) { | |
141 | s->irq_mask &= mask; | |
142 | ret = 0; | |
143 | } | |
144 | ||
145 | return ret ? ret : count; | |
146 | } | |
147 | static CLASS_DEVICE_ATTR(card_irq_mask, 0600, pccard_show_irq_mask, pccard_store_irq_mask); | |
148 | ||
149 | ||
150 | static ssize_t pccard_show_resource(struct class_device *dev, char *buf) | |
151 | { | |
152 | struct pcmcia_socket *s = to_socket(dev); | |
153 | return sprintf(buf, "%s\n", s->resource_setup_done ? "yes" : "no"); | |
154 | } | |
155 | ||
156 | static ssize_t pccard_store_resource(struct class_device *dev, const char *buf, size_t count) | |
157 | { | |
158 | unsigned long flags; | |
159 | struct pcmcia_socket *s = to_socket(dev); | |
160 | ||
161 | if (!count) | |
162 | return -EINVAL; | |
163 | ||
164 | spin_lock_irqsave(&s->lock, flags); | |
e2f0b534 | 165 | if (!s->resource_setup_done) |
1da177e4 | 166 | s->resource_setup_done = 1; |
e2f0b534 | 167 | spin_unlock_irqrestore(&s->lock, flags); |
1da177e4 | 168 | |
e2f0b534 DB |
169 | down(&s->skt_sem); |
170 | if ((s->callback) && | |
171 | (s->state & SOCKET_PRESENT) && | |
172 | !(s->state & SOCKET_CARDBUS)) { | |
173 | if (try_module_get(s->callback->owner)) { | |
174 | s->callback->requery(s); | |
175 | module_put(s->callback->owner); | |
1da177e4 | 176 | } |
1da177e4 | 177 | } |
e2f0b534 | 178 | up(&s->skt_sem); |
1da177e4 LT |
179 | |
180 | return count; | |
181 | } | |
182 | static CLASS_DEVICE_ATTR(available_resources_setup_done, 0600, pccard_show_resource, pccard_store_resource); | |
183 | ||
184 | ||
7f299bcc DB |
185 | static ssize_t pccard_extract_cis(struct pcmcia_socket *s, char *buf, loff_t off, size_t count) |
186 | { | |
187 | tuple_t tuple; | |
188 | int status, i; | |
189 | loff_t pointer = 0; | |
190 | ssize_t ret = 0; | |
191 | u_char *tuplebuffer; | |
192 | u_char *tempbuffer; | |
193 | ||
194 | tuplebuffer = kmalloc(sizeof(u_char) * 256, GFP_KERNEL); | |
195 | if (!tuplebuffer) | |
196 | return -ENOMEM; | |
197 | ||
198 | tempbuffer = kmalloc(sizeof(u_char) * 258, GFP_KERNEL); | |
199 | if (!tempbuffer) { | |
200 | ret = -ENOMEM; | |
201 | goto free_tuple; | |
202 | } | |
203 | ||
204 | memset(&tuple, 0, sizeof(tuple_t)); | |
205 | ||
206 | tuple.Attributes = TUPLE_RETURN_LINK | TUPLE_RETURN_COMMON; | |
207 | tuple.DesiredTuple = RETURN_FIRST_TUPLE; | |
208 | tuple.TupleOffset = 0; | |
209 | ||
210 | status = pccard_get_first_tuple(s, BIND_FN_ALL, &tuple); | |
211 | while (!status) { | |
212 | tuple.TupleData = tuplebuffer; | |
213 | tuple.TupleDataMax = 255; | |
214 | memset(tuplebuffer, 0, sizeof(u_char) * 255); | |
215 | ||
216 | status = pccard_get_tuple_data(s, &tuple); | |
217 | if (status) | |
218 | break; | |
219 | ||
220 | if (off < (pointer + 2 + tuple.TupleDataLen)) { | |
221 | tempbuffer[0] = tuple.TupleCode & 0xff; | |
222 | tempbuffer[1] = tuple.TupleLink & 0xff; | |
223 | for (i = 0; i < tuple.TupleDataLen; i++) | |
224 | tempbuffer[i + 2] = tuplebuffer[i] & 0xff; | |
225 | ||
226 | for (i = 0; i < (2 + tuple.TupleDataLen); i++) { | |
227 | if (((i + pointer) >= off) && | |
228 | (i + pointer) < (off + count)) { | |
229 | buf[ret] = tempbuffer[i]; | |
230 | ret++; | |
231 | } | |
232 | } | |
233 | } | |
234 | ||
235 | pointer += 2 + tuple.TupleDataLen; | |
236 | ||
237 | if (pointer >= (off + count)) | |
238 | break; | |
239 | ||
240 | if (tuple.TupleCode == CISTPL_END) | |
241 | break; | |
242 | status = pccard_get_next_tuple(s, BIND_FN_ALL, &tuple); | |
243 | } | |
244 | ||
245 | kfree(tempbuffer); | |
246 | free_tuple: | |
247 | kfree(tuplebuffer); | |
248 | ||
249 | return (ret); | |
250 | } | |
251 | ||
252 | static ssize_t pccard_show_cis(struct kobject *kobj, char *buf, loff_t off, size_t count) | |
253 | { | |
254 | unsigned int size = 0x200; | |
255 | ||
256 | if (off >= size) | |
257 | count = 0; | |
258 | else { | |
259 | struct pcmcia_socket *s; | |
260 | cisinfo_t cisinfo; | |
261 | ||
262 | if (off + count > size) | |
263 | count = size - off; | |
264 | ||
265 | s = to_socket(container_of(kobj, struct class_device, kobj)); | |
266 | ||
267 | if (!(s->state & SOCKET_PRESENT)) | |
268 | return -ENODEV; | |
269 | if (pccard_validate_cis(s, BIND_FN_ALL, &cisinfo)) | |
270 | return -EIO; | |
271 | if (!cisinfo.Chains) | |
272 | return -ENODATA; | |
273 | ||
274 | count = pccard_extract_cis(s, buf, off, count); | |
275 | } | |
276 | ||
277 | return (count); | |
278 | } | |
279 | ||
ff1fa9ef DB |
280 | static ssize_t pccard_store_cis(struct kobject *kobj, char *buf, loff_t off, size_t count) |
281 | { | |
282 | struct pcmcia_socket *s = to_socket(container_of(kobj, struct class_device, kobj)); | |
283 | cisdump_t *cis; | |
284 | ssize_t ret = count; | |
285 | ||
286 | if (off) | |
287 | return -EINVAL; | |
288 | ||
289 | if (count >= 0x200) | |
290 | return -EINVAL; | |
291 | ||
292 | if (!(s->state & SOCKET_PRESENT)) | |
293 | return -ENODEV; | |
294 | ||
295 | cis = kmalloc(sizeof(cisdump_t), GFP_KERNEL); | |
296 | if (!cis) | |
297 | return -ENOMEM; | |
298 | memset(cis, 0, sizeof(cisdump_t)); | |
299 | ||
300 | cis->Length = count + 1; | |
301 | memcpy(cis->Data, buf, count); | |
302 | ||
303 | if (pcmcia_replace_cis(s, cis)) | |
304 | ret = -EIO; | |
305 | ||
306 | kfree(cis); | |
307 | ||
308 | if (!ret) { | |
309 | down(&s->skt_sem); | |
310 | if ((s->callback) && (s->state & SOCKET_PRESENT) && | |
311 | !(s->state & SOCKET_CARDBUS)) { | |
312 | if (try_module_get(s->callback->owner)) { | |
e2f0b534 | 313 | s->callback->requery(s); |
ff1fa9ef DB |
314 | module_put(s->callback->owner); |
315 | } | |
316 | } | |
317 | up(&s->skt_sem); | |
318 | } | |
319 | ||
320 | ||
321 | return (ret); | |
322 | } | |
323 | ||
7f299bcc | 324 | |
1da177e4 LT |
325 | static struct class_device_attribute *pccard_socket_attributes[] = { |
326 | &class_device_attr_card_type, | |
327 | &class_device_attr_card_voltage, | |
328 | &class_device_attr_card_vpp, | |
329 | &class_device_attr_card_vcc, | |
330 | &class_device_attr_card_insert, | |
331 | &class_device_attr_card_eject, | |
332 | &class_device_attr_card_irq_mask, | |
333 | &class_device_attr_available_resources_setup_done, | |
334 | NULL, | |
335 | }; | |
336 | ||
7f299bcc | 337 | static struct bin_attribute pccard_cis_attr = { |
ff1fa9ef | 338 | .attr = { .name = "cis", .mode = S_IRUGO | S_IWUSR, .owner = THIS_MODULE}, |
7f299bcc DB |
339 | .size = 0x200, |
340 | .read = pccard_show_cis, | |
ff1fa9ef | 341 | .write = pccard_store_cis, |
7f299bcc DB |
342 | }; |
343 | ||
1da177e4 LT |
344 | static int __devinit pccard_sysfs_add_socket(struct class_device *class_dev) |
345 | { | |
346 | struct class_device_attribute **attr; | |
347 | int ret = 0; | |
348 | ||
349 | for (attr = pccard_socket_attributes; *attr; attr++) { | |
350 | ret = class_device_create_file(class_dev, *attr); | |
351 | if (ret) | |
352 | break; | |
353 | } | |
7f299bcc DB |
354 | if (!ret) |
355 | ret = sysfs_create_bin_file(&class_dev->kobj, &pccard_cis_attr); | |
1da177e4 LT |
356 | |
357 | return ret; | |
358 | } | |
359 | ||
360 | static void __devexit pccard_sysfs_remove_socket(struct class_device *class_dev) | |
361 | { | |
362 | struct class_device_attribute **attr; | |
363 | ||
7f299bcc | 364 | sysfs_remove_bin_file(&class_dev->kobj, &pccard_cis_attr); |
1da177e4 LT |
365 | for (attr = pccard_socket_attributes; *attr; attr++) |
366 | class_device_remove_file(class_dev, *attr); | |
367 | } | |
368 | ||
369 | struct class_interface pccard_sysfs_interface = { | |
370 | .class = &pcmcia_socket_class, | |
371 | .add = &pccard_sysfs_add_socket, | |
372 | .remove = __devexit_p(&pccard_sysfs_remove_socket), | |
373 | }; |