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Commit | Line | Data |
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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> | |
1da177e4 LT |
15 | #include <linux/string.h> |
16 | #include <linux/major.h> | |
17 | #include <linux/errno.h> | |
18 | #include <linux/slab.h> | |
19 | #include <linux/mm.h> | |
20 | #include <linux/interrupt.h> | |
21 | #include <linux/timer.h> | |
22 | #include <linux/ioport.h> | |
23 | #include <linux/delay.h> | |
24 | #include <linux/pm.h> | |
1da177e4 | 25 | #include <linux/device.h> |
7fe908dd | 26 | #include <linux/mutex.h> |
1da177e4 LT |
27 | #include <asm/system.h> |
28 | #include <asm/irq.h> | |
29 | ||
1da177e4 LT |
30 | #include <pcmcia/cs_types.h> |
31 | #include <pcmcia/ss.h> | |
32 | #include <pcmcia/cs.h> | |
1da177e4 LT |
33 | #include <pcmcia/cistpl.h> |
34 | #include <pcmcia/cisreg.h> | |
35 | #include <pcmcia/ds.h> | |
36 | #include "cs_internal.h" | |
37 | ||
38 | #define to_socket(_dev) container_of(_dev, struct pcmcia_socket, dev) | |
39 | ||
87373318 GKH |
40 | static ssize_t pccard_show_type(struct device *dev, struct device_attribute *attr, |
41 | char *buf) | |
1da177e4 | 42 | { |
1da177e4 LT |
43 | struct pcmcia_socket *s = to_socket(dev); |
44 | ||
45 | if (!(s->state & SOCKET_PRESENT)) | |
46 | return -ENODEV; | |
002dbb2d | 47 | if (s->state & SOCKET_CARDBUS) |
1da177e4 | 48 | return sprintf(buf, "32-bit\n"); |
002dbb2d | 49 | return sprintf(buf, "16-bit\n"); |
1da177e4 | 50 | } |
87373318 | 51 | static DEVICE_ATTR(card_type, 0444, pccard_show_type, NULL); |
1da177e4 | 52 | |
87373318 GKH |
53 | static ssize_t pccard_show_voltage(struct device *dev, struct device_attribute *attr, |
54 | char *buf) | |
1da177e4 | 55 | { |
1da177e4 LT |
56 | struct pcmcia_socket *s = to_socket(dev); |
57 | ||
58 | if (!(s->state & SOCKET_PRESENT)) | |
59 | return -ENODEV; | |
002dbb2d DB |
60 | if (s->socket.Vcc) |
61 | return sprintf(buf, "%d.%dV\n", s->socket.Vcc / 10, | |
62 | s->socket.Vcc % 10); | |
63 | return sprintf(buf, "X.XV\n"); | |
1da177e4 | 64 | } |
87373318 | 65 | static DEVICE_ATTR(card_voltage, 0444, pccard_show_voltage, NULL); |
1da177e4 | 66 | |
87373318 GKH |
67 | static ssize_t pccard_show_vpp(struct device *dev, struct device_attribute *attr, |
68 | char *buf) | |
1da177e4 LT |
69 | { |
70 | struct pcmcia_socket *s = to_socket(dev); | |
71 | if (!(s->state & SOCKET_PRESENT)) | |
72 | return -ENODEV; | |
73 | return sprintf(buf, "%d.%dV\n", s->socket.Vpp / 10, s->socket.Vpp % 10); | |
74 | } | |
87373318 | 75 | static DEVICE_ATTR(card_vpp, 0444, pccard_show_vpp, NULL); |
1da177e4 | 76 | |
87373318 GKH |
77 | static ssize_t pccard_show_vcc(struct device *dev, struct device_attribute *attr, |
78 | char *buf) | |
1da177e4 LT |
79 | { |
80 | struct pcmcia_socket *s = to_socket(dev); | |
81 | if (!(s->state & SOCKET_PRESENT)) | |
82 | return -ENODEV; | |
83 | return sprintf(buf, "%d.%dV\n", s->socket.Vcc / 10, s->socket.Vcc % 10); | |
84 | } | |
87373318 | 85 | static DEVICE_ATTR(card_vcc, 0444, pccard_show_vcc, NULL); |
1da177e4 LT |
86 | |
87 | ||
87373318 GKH |
88 | static ssize_t pccard_store_insert(struct device *dev, struct device_attribute *attr, |
89 | const char *buf, size_t count) | |
1da177e4 LT |
90 | { |
91 | ssize_t ret; | |
92 | struct pcmcia_socket *s = to_socket(dev); | |
93 | ||
94 | if (!count) | |
95 | return -EINVAL; | |
96 | ||
97 | ret = pcmcia_insert_card(s); | |
98 | ||
99 | return ret ? ret : count; | |
100 | } | |
87373318 | 101 | static DEVICE_ATTR(card_insert, 0200, NULL, pccard_store_insert); |
1da177e4 | 102 | |
db1019ca | 103 | |
87373318 GKH |
104 | static ssize_t pccard_show_card_pm_state(struct device *dev, |
105 | struct device_attribute *attr, | |
106 | char *buf) | |
db1019ca DB |
107 | { |
108 | struct pcmcia_socket *s = to_socket(dev); | |
109 | return sprintf(buf, "%s\n", s->state & SOCKET_SUSPEND ? "off" : "on"); | |
110 | } | |
111 | ||
87373318 GKH |
112 | static ssize_t pccard_store_card_pm_state(struct device *dev, |
113 | struct device_attribute *attr, | |
114 | const char *buf, size_t count) | |
db1019ca DB |
115 | { |
116 | ssize_t ret = -EINVAL; | |
117 | struct pcmcia_socket *s = to_socket(dev); | |
118 | ||
119 | if (!count) | |
120 | return -EINVAL; | |
121 | ||
122 | if (!(s->state & SOCKET_SUSPEND) && !strncmp(buf, "off", 3)) | |
123 | ret = pcmcia_suspend_card(s); | |
124 | else if ((s->state & SOCKET_SUSPEND) && !strncmp(buf, "on", 2)) | |
125 | ret = pcmcia_resume_card(s); | |
126 | ||
127 | return ret ? -ENODEV : count; | |
128 | } | |
87373318 | 129 | static DEVICE_ATTR(card_pm_state, 0644, pccard_show_card_pm_state, pccard_store_card_pm_state); |
db1019ca | 130 | |
87373318 GKH |
131 | static ssize_t pccard_store_eject(struct device *dev, |
132 | struct device_attribute *attr, | |
133 | const char *buf, size_t count) | |
1da177e4 LT |
134 | { |
135 | ssize_t ret; | |
136 | struct pcmcia_socket *s = to_socket(dev); | |
137 | ||
138 | if (!count) | |
139 | return -EINVAL; | |
140 | ||
141 | ret = pcmcia_eject_card(s); | |
142 | ||
143 | return ret ? ret : count; | |
144 | } | |
87373318 | 145 | static DEVICE_ATTR(card_eject, 0200, NULL, pccard_store_eject); |
1da177e4 LT |
146 | |
147 | ||
87373318 GKH |
148 | static ssize_t pccard_show_irq_mask(struct device *dev, |
149 | struct device_attribute *attr, | |
150 | char *buf) | |
1da177e4 LT |
151 | { |
152 | struct pcmcia_socket *s = to_socket(dev); | |
153 | return sprintf(buf, "0x%04x\n", s->irq_mask); | |
154 | } | |
155 | ||
87373318 GKH |
156 | static ssize_t pccard_store_irq_mask(struct device *dev, |
157 | struct device_attribute *attr, | |
158 | const char *buf, size_t count) | |
1da177e4 LT |
159 | { |
160 | ssize_t ret; | |
161 | struct pcmcia_socket *s = to_socket(dev); | |
162 | u32 mask; | |
163 | ||
164 | if (!count) | |
165 | return -EINVAL; | |
166 | ||
9fea84f4 | 167 | ret = sscanf(buf, "0x%x\n", &mask); |
1da177e4 LT |
168 | |
169 | if (ret == 1) { | |
170 | s->irq_mask &= mask; | |
171 | ret = 0; | |
172 | } | |
173 | ||
174 | return ret ? ret : count; | |
175 | } | |
87373318 | 176 | static DEVICE_ATTR(card_irq_mask, 0600, pccard_show_irq_mask, pccard_store_irq_mask); |
1da177e4 LT |
177 | |
178 | ||
87373318 GKH |
179 | static ssize_t pccard_show_resource(struct device *dev, |
180 | struct device_attribute *attr, char *buf) | |
1da177e4 LT |
181 | { |
182 | struct pcmcia_socket *s = to_socket(dev); | |
183 | return sprintf(buf, "%s\n", s->resource_setup_done ? "yes" : "no"); | |
184 | } | |
185 | ||
87373318 GKH |
186 | static ssize_t pccard_store_resource(struct device *dev, |
187 | struct device_attribute *attr, | |
188 | const char *buf, size_t count) | |
1da177e4 LT |
189 | { |
190 | unsigned long flags; | |
191 | struct pcmcia_socket *s = to_socket(dev); | |
192 | ||
193 | if (!count) | |
194 | return -EINVAL; | |
195 | ||
196 | spin_lock_irqsave(&s->lock, flags); | |
e2f0b534 | 197 | if (!s->resource_setup_done) |
1da177e4 | 198 | s->resource_setup_done = 1; |
e2f0b534 | 199 | spin_unlock_irqrestore(&s->lock, flags); |
1da177e4 | 200 | |
7fe908dd | 201 | mutex_lock(&s->skt_mutex); |
e2f0b534 DB |
202 | if ((s->callback) && |
203 | (s->state & SOCKET_PRESENT) && | |
204 | !(s->state & SOCKET_CARDBUS)) { | |
205 | if (try_module_get(s->callback->owner)) { | |
4ae1cbf1 | 206 | s->callback->requery(s, 0); |
e2f0b534 | 207 | module_put(s->callback->owner); |
1da177e4 | 208 | } |
1da177e4 | 209 | } |
7fe908dd | 210 | mutex_unlock(&s->skt_mutex); |
1da177e4 LT |
211 | |
212 | return count; | |
213 | } | |
87373318 | 214 | static DEVICE_ATTR(available_resources_setup_done, 0600, pccard_show_resource, pccard_store_resource); |
1da177e4 LT |
215 | |
216 | ||
7f299bcc DB |
217 | static ssize_t pccard_extract_cis(struct pcmcia_socket *s, char *buf, loff_t off, size_t count) |
218 | { | |
219 | tuple_t tuple; | |
220 | int status, i; | |
221 | loff_t pointer = 0; | |
222 | ssize_t ret = 0; | |
223 | u_char *tuplebuffer; | |
224 | u_char *tempbuffer; | |
225 | ||
226 | tuplebuffer = kmalloc(sizeof(u_char) * 256, GFP_KERNEL); | |
227 | if (!tuplebuffer) | |
228 | return -ENOMEM; | |
229 | ||
230 | tempbuffer = kmalloc(sizeof(u_char) * 258, GFP_KERNEL); | |
231 | if (!tempbuffer) { | |
232 | ret = -ENOMEM; | |
233 | goto free_tuple; | |
234 | } | |
235 | ||
236 | memset(&tuple, 0, sizeof(tuple_t)); | |
237 | ||
238 | tuple.Attributes = TUPLE_RETURN_LINK | TUPLE_RETURN_COMMON; | |
239 | tuple.DesiredTuple = RETURN_FIRST_TUPLE; | |
240 | tuple.TupleOffset = 0; | |
241 | ||
242 | status = pccard_get_first_tuple(s, BIND_FN_ALL, &tuple); | |
243 | while (!status) { | |
244 | tuple.TupleData = tuplebuffer; | |
245 | tuple.TupleDataMax = 255; | |
246 | memset(tuplebuffer, 0, sizeof(u_char) * 255); | |
247 | ||
248 | status = pccard_get_tuple_data(s, &tuple); | |
249 | if (status) | |
250 | break; | |
251 | ||
252 | if (off < (pointer + 2 + tuple.TupleDataLen)) { | |
253 | tempbuffer[0] = tuple.TupleCode & 0xff; | |
254 | tempbuffer[1] = tuple.TupleLink & 0xff; | |
255 | for (i = 0; i < tuple.TupleDataLen; i++) | |
256 | tempbuffer[i + 2] = tuplebuffer[i] & 0xff; | |
257 | ||
258 | for (i = 0; i < (2 + tuple.TupleDataLen); i++) { | |
259 | if (((i + pointer) >= off) && | |
260 | (i + pointer) < (off + count)) { | |
261 | buf[ret] = tempbuffer[i]; | |
262 | ret++; | |
263 | } | |
264 | } | |
265 | } | |
266 | ||
267 | pointer += 2 + tuple.TupleDataLen; | |
268 | ||
269 | if (pointer >= (off + count)) | |
270 | break; | |
271 | ||
272 | if (tuple.TupleCode == CISTPL_END) | |
273 | break; | |
274 | status = pccard_get_next_tuple(s, BIND_FN_ALL, &tuple); | |
275 | } | |
276 | ||
277 | kfree(tempbuffer); | |
278 | free_tuple: | |
279 | kfree(tuplebuffer); | |
280 | ||
9fea84f4 | 281 | return ret; |
7f299bcc DB |
282 | } |
283 | ||
91a69029 ZR |
284 | static ssize_t pccard_show_cis(struct kobject *kobj, |
285 | struct bin_attribute *bin_attr, | |
286 | char *buf, loff_t off, size_t count) | |
7f299bcc DB |
287 | { |
288 | unsigned int size = 0x200; | |
289 | ||
290 | if (off >= size) | |
291 | count = 0; | |
292 | else { | |
293 | struct pcmcia_socket *s; | |
c5081d5f | 294 | unsigned int chains; |
7f299bcc DB |
295 | |
296 | if (off + count > size) | |
297 | count = size - off; | |
298 | ||
87373318 | 299 | s = to_socket(container_of(kobj, struct device, kobj)); |
7f299bcc DB |
300 | |
301 | if (!(s->state & SOCKET_PRESENT)) | |
302 | return -ENODEV; | |
84897fc0 | 303 | if (pccard_validate_cis(s, &chains)) |
7f299bcc | 304 | return -EIO; |
c5081d5f | 305 | if (!chains) |
7f299bcc DB |
306 | return -ENODATA; |
307 | ||
308 | count = pccard_extract_cis(s, buf, off, count); | |
309 | } | |
310 | ||
9fea84f4 | 311 | return count; |
7f299bcc DB |
312 | } |
313 | ||
91a69029 ZR |
314 | static ssize_t pccard_store_cis(struct kobject *kobj, |
315 | struct bin_attribute *bin_attr, | |
316 | char *buf, loff_t off, size_t count) | |
ff1fa9ef | 317 | { |
87373318 | 318 | struct pcmcia_socket *s = to_socket(container_of(kobj, struct device, kobj)); |
d834c165 | 319 | int error; |
ff1fa9ef DB |
320 | |
321 | if (off) | |
322 | return -EINVAL; | |
323 | ||
53efec95 | 324 | if (count >= CISTPL_MAX_CIS_SIZE) |
ff1fa9ef DB |
325 | return -EINVAL; |
326 | ||
327 | if (!(s->state & SOCKET_PRESENT)) | |
328 | return -ENODEV; | |
329 | ||
53efec95 | 330 | error = pcmcia_replace_cis(s, buf, count); |
d834c165 LT |
331 | if (error) |
332 | return -EIO; | |
ff1fa9ef | 333 | |
d834c165 LT |
334 | mutex_lock(&s->skt_mutex); |
335 | if ((s->callback) && (s->state & SOCKET_PRESENT) && | |
336 | !(s->state & SOCKET_CARDBUS)) { | |
337 | if (try_module_get(s->callback->owner)) { | |
4ae1cbf1 | 338 | s->callback->requery(s, 1); |
d834c165 | 339 | module_put(s->callback->owner); |
ff1fa9ef | 340 | } |
ff1fa9ef | 341 | } |
d834c165 | 342 | mutex_unlock(&s->skt_mutex); |
ff1fa9ef | 343 | |
d834c165 | 344 | return count; |
ff1fa9ef DB |
345 | } |
346 | ||
7f299bcc | 347 | |
4356d73d DB |
348 | static struct attribute *pccard_socket_attributes[] = { |
349 | &dev_attr_card_type.attr, | |
350 | &dev_attr_card_voltage.attr, | |
351 | &dev_attr_card_vpp.attr, | |
352 | &dev_attr_card_vcc.attr, | |
353 | &dev_attr_card_insert.attr, | |
354 | &dev_attr_card_pm_state.attr, | |
355 | &dev_attr_card_eject.attr, | |
356 | &dev_attr_card_irq_mask.attr, | |
357 | &dev_attr_available_resources_setup_done.attr, | |
1da177e4 LT |
358 | NULL, |
359 | }; | |
360 | ||
4356d73d DB |
361 | static const struct attribute_group socket_attrs = { |
362 | .attrs = pccard_socket_attributes, | |
363 | }; | |
364 | ||
7f299bcc | 365 | static struct bin_attribute pccard_cis_attr = { |
7b595756 | 366 | .attr = { .name = "cis", .mode = S_IRUGO | S_IWUSR }, |
7f299bcc DB |
367 | .size = 0x200, |
368 | .read = pccard_show_cis, | |
ff1fa9ef | 369 | .write = pccard_store_cis, |
7f299bcc DB |
370 | }; |
371 | ||
4356d73d | 372 | int pccard_sysfs_add_socket(struct device *dev) |
1da177e4 | 373 | { |
1da177e4 LT |
374 | int ret = 0; |
375 | ||
4356d73d DB |
376 | ret = sysfs_create_group(&dev->kobj, &socket_attrs); |
377 | if (!ret) { | |
378 | ret = sysfs_create_bin_file(&dev->kobj, &pccard_cis_attr); | |
1da177e4 | 379 | if (ret) |
4356d73d | 380 | sysfs_remove_group(&dev->kobj, &socket_attrs); |
1da177e4 | 381 | } |
1da177e4 LT |
382 | return ret; |
383 | } | |
384 | ||
4356d73d | 385 | void pccard_sysfs_remove_socket(struct device *dev) |
1da177e4 | 386 | { |
87373318 | 387 | sysfs_remove_bin_file(&dev->kobj, &pccard_cis_attr); |
4356d73d | 388 | sysfs_remove_group(&dev->kobj, &socket_attrs); |
1da177e4 | 389 | } |