blob: a2bb46526b56cdd8028a49e1394034d501a40807 [file] [log] [blame]
Linus Torvalds1da177e2005-04-16 15:20:36 -07001/*
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>
Linus Torvalds1da177e2005-04-16 15:20:36 -070015#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>
Linus Torvalds1da177e2005-04-16 15:20:36 -070025#include <linux/device.h>
Dominik Brodowski7fe908d2006-01-10 21:20:36 +010026#include <linux/mutex.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070027#include <asm/system.h>
28#include <asm/irq.h>
29
30#define IN_CARD_SERVICES
Linus Torvalds1da177e2005-04-16 15:20:36 -070031#include <pcmcia/cs_types.h>
32#include <pcmcia/ss.h>
33#include <pcmcia/cs.h>
34#include <pcmcia/bulkmem.h>
35#include <pcmcia/cistpl.h>
36#include <pcmcia/cisreg.h>
37#include <pcmcia/ds.h>
38#include "cs_internal.h"
39
40#define to_socket(_dev) container_of(_dev, struct pcmcia_socket, dev)
41
Greg Kroah-Hartman87373312006-09-12 17:00:10 +020042static ssize_t pccard_show_type(struct device *dev, struct device_attribute *attr,
43 char *buf)
Linus Torvalds1da177e2005-04-16 15:20:36 -070044{
Linus Torvalds1da177e2005-04-16 15:20:36 -070045 struct pcmcia_socket *s = to_socket(dev);
46
47 if (!(s->state & SOCKET_PRESENT))
48 return -ENODEV;
Dominik Brodowski002dbb22005-12-08 23:50:36 +010049 if (s->state & SOCKET_CARDBUS)
Linus Torvalds1da177e2005-04-16 15:20:36 -070050 return sprintf(buf, "32-bit\n");
Dominik Brodowski002dbb22005-12-08 23:50:36 +010051 return sprintf(buf, "16-bit\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -070052}
Greg Kroah-Hartman87373312006-09-12 17:00:10 +020053static DEVICE_ATTR(card_type, 0444, pccard_show_type, NULL);
Linus Torvalds1da177e2005-04-16 15:20:36 -070054
Greg Kroah-Hartman87373312006-09-12 17:00:10 +020055static ssize_t pccard_show_voltage(struct device *dev, struct device_attribute *attr,
56 char *buf)
Linus Torvalds1da177e2005-04-16 15:20:36 -070057{
Linus Torvalds1da177e2005-04-16 15:20:36 -070058 struct pcmcia_socket *s = to_socket(dev);
59
60 if (!(s->state & SOCKET_PRESENT))
61 return -ENODEV;
Dominik Brodowski002dbb22005-12-08 23:50:36 +010062 if (s->socket.Vcc)
63 return sprintf(buf, "%d.%dV\n", s->socket.Vcc / 10,
64 s->socket.Vcc % 10);
65 return sprintf(buf, "X.XV\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -070066}
Greg Kroah-Hartman87373312006-09-12 17:00:10 +020067static DEVICE_ATTR(card_voltage, 0444, pccard_show_voltage, NULL);
Linus Torvalds1da177e2005-04-16 15:20:36 -070068
Greg Kroah-Hartman87373312006-09-12 17:00:10 +020069static ssize_t pccard_show_vpp(struct device *dev, struct device_attribute *attr,
70 char *buf)
Linus Torvalds1da177e2005-04-16 15:20:36 -070071{
72 struct pcmcia_socket *s = to_socket(dev);
73 if (!(s->state & SOCKET_PRESENT))
74 return -ENODEV;
75 return sprintf(buf, "%d.%dV\n", s->socket.Vpp / 10, s->socket.Vpp % 10);
76}
Greg Kroah-Hartman87373312006-09-12 17:00:10 +020077static DEVICE_ATTR(card_vpp, 0444, pccard_show_vpp, NULL);
Linus Torvalds1da177e2005-04-16 15:20:36 -070078
Greg Kroah-Hartman87373312006-09-12 17:00:10 +020079static ssize_t pccard_show_vcc(struct device *dev, struct device_attribute *attr,
80 char *buf)
Linus Torvalds1da177e2005-04-16 15:20:36 -070081{
82 struct pcmcia_socket *s = to_socket(dev);
83 if (!(s->state & SOCKET_PRESENT))
84 return -ENODEV;
85 return sprintf(buf, "%d.%dV\n", s->socket.Vcc / 10, s->socket.Vcc % 10);
86}
Greg Kroah-Hartman87373312006-09-12 17:00:10 +020087static DEVICE_ATTR(card_vcc, 0444, pccard_show_vcc, NULL);
Linus Torvalds1da177e2005-04-16 15:20:36 -070088
89
Greg Kroah-Hartman87373312006-09-12 17:00:10 +020090static ssize_t pccard_store_insert(struct device *dev, struct device_attribute *attr,
91 const char *buf, size_t count)
Linus Torvalds1da177e2005-04-16 15:20:36 -070092{
93 ssize_t ret;
94 struct pcmcia_socket *s = to_socket(dev);
95
96 if (!count)
97 return -EINVAL;
98
99 ret = pcmcia_insert_card(s);
100
101 return ret ? ret : count;
102}
Greg Kroah-Hartman87373312006-09-12 17:00:10 +0200103static DEVICE_ATTR(card_insert, 0200, NULL, pccard_store_insert);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700104
Dominik Brodowskidb1019c2006-01-10 19:19:37 +0100105
Greg Kroah-Hartman87373312006-09-12 17:00:10 +0200106static ssize_t pccard_show_card_pm_state(struct device *dev,
107 struct device_attribute *attr,
108 char *buf)
Dominik Brodowskidb1019c2006-01-10 19:19:37 +0100109{
110 struct pcmcia_socket *s = to_socket(dev);
111 return sprintf(buf, "%s\n", s->state & SOCKET_SUSPEND ? "off" : "on");
112}
113
Greg Kroah-Hartman87373312006-09-12 17:00:10 +0200114static ssize_t pccard_store_card_pm_state(struct device *dev,
115 struct device_attribute *attr,
116 const char *buf, size_t count)
Dominik Brodowskidb1019c2006-01-10 19:19:37 +0100117{
118 ssize_t ret = -EINVAL;
119 struct pcmcia_socket *s = to_socket(dev);
120
121 if (!count)
122 return -EINVAL;
123
124 if (!(s->state & SOCKET_SUSPEND) && !strncmp(buf, "off", 3))
125 ret = pcmcia_suspend_card(s);
126 else if ((s->state & SOCKET_SUSPEND) && !strncmp(buf, "on", 2))
127 ret = pcmcia_resume_card(s);
128
129 return ret ? -ENODEV : count;
130}
Greg Kroah-Hartman87373312006-09-12 17:00:10 +0200131static DEVICE_ATTR(card_pm_state, 0644, pccard_show_card_pm_state, pccard_store_card_pm_state);
Dominik Brodowskidb1019c2006-01-10 19:19:37 +0100132
Greg Kroah-Hartman87373312006-09-12 17:00:10 +0200133static ssize_t pccard_store_eject(struct device *dev,
134 struct device_attribute *attr,
135 const char *buf, size_t count)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700136{
137 ssize_t ret;
138 struct pcmcia_socket *s = to_socket(dev);
139
140 if (!count)
141 return -EINVAL;
142
143 ret = pcmcia_eject_card(s);
144
145 return ret ? ret : count;
146}
Greg Kroah-Hartman87373312006-09-12 17:00:10 +0200147static DEVICE_ATTR(card_eject, 0200, NULL, pccard_store_eject);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700148
149
Greg Kroah-Hartman87373312006-09-12 17:00:10 +0200150static ssize_t pccard_show_irq_mask(struct device *dev,
151 struct device_attribute *attr,
152 char *buf)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700153{
154 struct pcmcia_socket *s = to_socket(dev);
155 return sprintf(buf, "0x%04x\n", s->irq_mask);
156}
157
Greg Kroah-Hartman87373312006-09-12 17:00:10 +0200158static ssize_t pccard_store_irq_mask(struct device *dev,
159 struct device_attribute *attr,
160 const char *buf, size_t count)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700161{
162 ssize_t ret;
163 struct pcmcia_socket *s = to_socket(dev);
164 u32 mask;
165
166 if (!count)
167 return -EINVAL;
168
169 ret = sscanf (buf, "0x%x\n", &mask);
170
171 if (ret == 1) {
172 s->irq_mask &= mask;
173 ret = 0;
174 }
175
176 return ret ? ret : count;
177}
Greg Kroah-Hartman87373312006-09-12 17:00:10 +0200178static DEVICE_ATTR(card_irq_mask, 0600, pccard_show_irq_mask, pccard_store_irq_mask);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700179
180
Greg Kroah-Hartman87373312006-09-12 17:00:10 +0200181static ssize_t pccard_show_resource(struct device *dev,
182 struct device_attribute *attr, char *buf)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700183{
184 struct pcmcia_socket *s = to_socket(dev);
185 return sprintf(buf, "%s\n", s->resource_setup_done ? "yes" : "no");
186}
187
Greg Kroah-Hartman87373312006-09-12 17:00:10 +0200188static ssize_t pccard_store_resource(struct device *dev,
189 struct device_attribute *attr,
190 const char *buf, size_t count)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700191{
192 unsigned long flags;
193 struct pcmcia_socket *s = to_socket(dev);
194
195 if (!count)
196 return -EINVAL;
197
198 spin_lock_irqsave(&s->lock, flags);
Dominik Brodowskie2f0b532005-06-27 16:28:17 -0700199 if (!s->resource_setup_done)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700200 s->resource_setup_done = 1;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700201 spin_unlock_irqrestore(&s->lock, flags);
202
Dominik Brodowski7fe908d2006-01-10 21:20:36 +0100203 mutex_lock(&s->skt_mutex);
Dominik Brodowskie2f0b532005-06-27 16:28:17 -0700204 if ((s->callback) &&
205 (s->state & SOCKET_PRESENT) &&
206 !(s->state & SOCKET_CARDBUS)) {
207 if (try_module_get(s->callback->owner)) {
Dominik Brodowski4ae1cbf2006-11-03 10:54:00 -0500208 s->callback->requery(s, 0);
Dominik Brodowskie2f0b532005-06-27 16:28:17 -0700209 module_put(s->callback->owner);
210 }
211 }
Dominik Brodowski7fe908d2006-01-10 21:20:36 +0100212 mutex_unlock(&s->skt_mutex);
Dominik Brodowskie2f0b532005-06-27 16:28:17 -0700213
Linus Torvalds1da177e2005-04-16 15:20:36 -0700214 return count;
215}
Greg Kroah-Hartman87373312006-09-12 17:00:10 +0200216static DEVICE_ATTR(available_resources_setup_done, 0600, pccard_show_resource, pccard_store_resource);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700217
218
Dominik Brodowski7f299bc2005-06-27 16:28:08 -0700219static ssize_t pccard_extract_cis(struct pcmcia_socket *s, char *buf, loff_t off, size_t count)
220{
221 tuple_t tuple;
222 int status, i;
223 loff_t pointer = 0;
224 ssize_t ret = 0;
225 u_char *tuplebuffer;
226 u_char *tempbuffer;
227
228 tuplebuffer = kmalloc(sizeof(u_char) * 256, GFP_KERNEL);
229 if (!tuplebuffer)
230 return -ENOMEM;
231
232 tempbuffer = kmalloc(sizeof(u_char) * 258, GFP_KERNEL);
233 if (!tempbuffer) {
234 ret = -ENOMEM;
235 goto free_tuple;
236 }
237
238 memset(&tuple, 0, sizeof(tuple_t));
239
240 tuple.Attributes = TUPLE_RETURN_LINK | TUPLE_RETURN_COMMON;
241 tuple.DesiredTuple = RETURN_FIRST_TUPLE;
242 tuple.TupleOffset = 0;
243
244 status = pccard_get_first_tuple(s, BIND_FN_ALL, &tuple);
245 while (!status) {
246 tuple.TupleData = tuplebuffer;
247 tuple.TupleDataMax = 255;
248 memset(tuplebuffer, 0, sizeof(u_char) * 255);
249
250 status = pccard_get_tuple_data(s, &tuple);
251 if (status)
252 break;
253
254 if (off < (pointer + 2 + tuple.TupleDataLen)) {
255 tempbuffer[0] = tuple.TupleCode & 0xff;
256 tempbuffer[1] = tuple.TupleLink & 0xff;
257 for (i = 0; i < tuple.TupleDataLen; i++)
258 tempbuffer[i + 2] = tuplebuffer[i] & 0xff;
259
260 for (i = 0; i < (2 + tuple.TupleDataLen); i++) {
261 if (((i + pointer) >= off) &&
262 (i + pointer) < (off + count)) {
263 buf[ret] = tempbuffer[i];
264 ret++;
265 }
266 }
267 }
268
269 pointer += 2 + tuple.TupleDataLen;
270
271 if (pointer >= (off + count))
272 break;
273
274 if (tuple.TupleCode == CISTPL_END)
275 break;
276 status = pccard_get_next_tuple(s, BIND_FN_ALL, &tuple);
277 }
278
279 kfree(tempbuffer);
280 free_tuple:
281 kfree(tuplebuffer);
282
283 return (ret);
284}
285
286static ssize_t pccard_show_cis(struct kobject *kobj, char *buf, loff_t off, size_t count)
287{
288 unsigned int size = 0x200;
289
290 if (off >= size)
291 count = 0;
292 else {
293 struct pcmcia_socket *s;
294 cisinfo_t cisinfo;
295
296 if (off + count > size)
297 count = size - off;
298
Greg Kroah-Hartman87373312006-09-12 17:00:10 +0200299 s = to_socket(container_of(kobj, struct device, kobj));
Dominik Brodowski7f299bc2005-06-27 16:28:08 -0700300
301 if (!(s->state & SOCKET_PRESENT))
302 return -ENODEV;
303 if (pccard_validate_cis(s, BIND_FN_ALL, &cisinfo))
304 return -EIO;
305 if (!cisinfo.Chains)
306 return -ENODATA;
307
308 count = pccard_extract_cis(s, buf, off, count);
309 }
310
311 return (count);
312}
313
Dominik Brodowskiff1fa9e2005-06-27 16:28:09 -0700314static ssize_t pccard_store_cis(struct kobject *kobj, char *buf, loff_t off, size_t count)
315{
Greg Kroah-Hartman87373312006-09-12 17:00:10 +0200316 struct pcmcia_socket *s = to_socket(container_of(kobj, struct device, kobj));
Dominik Brodowskiff1fa9e2005-06-27 16:28:09 -0700317 cisdump_t *cis;
Linus Torvaldsd834c162006-10-01 13:17:44 -0700318 int error;
Dominik Brodowskiff1fa9e2005-06-27 16:28:09 -0700319
320 if (off)
321 return -EINVAL;
322
323 if (count >= 0x200)
324 return -EINVAL;
325
326 if (!(s->state & SOCKET_PRESENT))
327 return -ENODEV;
328
Dominik Brodowski8084b372005-12-11 21:18:26 +0100329 cis = kzalloc(sizeof(cisdump_t), GFP_KERNEL);
Dominik Brodowskiff1fa9e2005-06-27 16:28:09 -0700330 if (!cis)
331 return -ENOMEM;
Dominik Brodowskiff1fa9e2005-06-27 16:28:09 -0700332
333 cis->Length = count + 1;
334 memcpy(cis->Data, buf, count);
335
Linus Torvaldsd834c162006-10-01 13:17:44 -0700336 error = pcmcia_replace_cis(s, cis);
Dominik Brodowskiff1fa9e2005-06-27 16:28:09 -0700337 kfree(cis);
Linus Torvaldsd834c162006-10-01 13:17:44 -0700338 if (error)
339 return -EIO;
Dominik Brodowskiff1fa9e2005-06-27 16:28:09 -0700340
Linus Torvaldsd834c162006-10-01 13:17:44 -0700341 mutex_lock(&s->skt_mutex);
342 if ((s->callback) && (s->state & SOCKET_PRESENT) &&
343 !(s->state & SOCKET_CARDBUS)) {
344 if (try_module_get(s->callback->owner)) {
Dominik Brodowski4ae1cbf2006-11-03 10:54:00 -0500345 s->callback->requery(s, 1);
Linus Torvaldsd834c162006-10-01 13:17:44 -0700346 module_put(s->callback->owner);
Dominik Brodowskiff1fa9e2005-06-27 16:28:09 -0700347 }
Dominik Brodowskiff1fa9e2005-06-27 16:28:09 -0700348 }
Linus Torvaldsd834c162006-10-01 13:17:44 -0700349 mutex_unlock(&s->skt_mutex);
Dominik Brodowskiff1fa9e2005-06-27 16:28:09 -0700350
Linus Torvaldsd834c162006-10-01 13:17:44 -0700351 return count;
Dominik Brodowskiff1fa9e2005-06-27 16:28:09 -0700352}
353
Dominik Brodowski7f299bc2005-06-27 16:28:08 -0700354
Greg Kroah-Hartman87373312006-09-12 17:00:10 +0200355static struct device_attribute *pccard_socket_attributes[] = {
356 &dev_attr_card_type,
357 &dev_attr_card_voltage,
358 &dev_attr_card_vpp,
359 &dev_attr_card_vcc,
360 &dev_attr_card_insert,
361 &dev_attr_card_pm_state,
362 &dev_attr_card_eject,
363 &dev_attr_card_irq_mask,
364 &dev_attr_available_resources_setup_done,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700365 NULL,
366};
367
Dominik Brodowski7f299bc2005-06-27 16:28:08 -0700368static struct bin_attribute pccard_cis_attr = {
Dominik Brodowskiff1fa9e2005-06-27 16:28:09 -0700369 .attr = { .name = "cis", .mode = S_IRUGO | S_IWUSR, .owner = THIS_MODULE},
Dominik Brodowski7f299bc2005-06-27 16:28:08 -0700370 .size = 0x200,
371 .read = pccard_show_cis,
Dominik Brodowskiff1fa9e2005-06-27 16:28:09 -0700372 .write = pccard_store_cis,
Dominik Brodowski7f299bc2005-06-27 16:28:08 -0700373};
374
Greg Kroah-Hartman87373312006-09-12 17:00:10 +0200375static int __devinit pccard_sysfs_add_socket(struct device *dev,
Dmitry Torokhovd8539d82005-09-15 02:01:36 -0500376 struct class_interface *class_intf)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700377{
Greg Kroah-Hartman87373312006-09-12 17:00:10 +0200378 struct device_attribute **attr;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700379 int ret = 0;
380
381 for (attr = pccard_socket_attributes; *attr; attr++) {
Greg Kroah-Hartman87373312006-09-12 17:00:10 +0200382 ret = device_create_file(dev, *attr);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700383 if (ret)
384 break;
385 }
Dominik Brodowski7f299bc2005-06-27 16:28:08 -0700386 if (!ret)
Greg Kroah-Hartman87373312006-09-12 17:00:10 +0200387 ret = sysfs_create_bin_file(&dev->kobj, &pccard_cis_attr);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700388
389 return ret;
390}
391
Greg Kroah-Hartman87373312006-09-12 17:00:10 +0200392static void __devexit pccard_sysfs_remove_socket(struct device *dev,
Dmitry Torokhovd8539d82005-09-15 02:01:36 -0500393 struct class_interface *class_intf)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700394{
Greg Kroah-Hartman87373312006-09-12 17:00:10 +0200395 struct device_attribute **attr;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700396
Greg Kroah-Hartman87373312006-09-12 17:00:10 +0200397 sysfs_remove_bin_file(&dev->kobj, &pccard_cis_attr);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700398 for (attr = pccard_socket_attributes; *attr; attr++)
Greg Kroah-Hartman87373312006-09-12 17:00:10 +0200399 device_remove_file(dev, *attr);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700400}
401
402struct class_interface pccard_sysfs_interface = {
403 .class = &pcmcia_socket_class,
Greg Kroah-Hartman87373312006-09-12 17:00:10 +0200404 .add_dev = &pccard_sysfs_add_socket,
405 .remove_dev = __devexit_p(&pccard_sysfs_remove_socket),
Linus Torvalds1da177e2005-04-16 15:20:36 -0700406};