[PATCH] pcmcia: remove include of config.h
[linux-3.10.git] / drivers / pcmcia / socket_sysfs.c
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/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>
25 #include <linux/pci.h>
26 #include <linux/device.h>
27 #include <linux/mutex.h>
28 #include <asm/system.h>
29 #include <asm/irq.h>
30
31 #define IN_CARD_SERVICES
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         struct pcmcia_socket *s = to_socket(dev);
46
47         if (!(s->state & SOCKET_PRESENT))
48                 return -ENODEV;
49         if (s->state & SOCKET_CARDBUS)
50                 return sprintf(buf, "32-bit\n");
51         return sprintf(buf, "16-bit\n");
52 }
53 static CLASS_DEVICE_ATTR(card_type, 0444, pccard_show_type, NULL);
54
55 static ssize_t pccard_show_voltage(struct class_device *dev, char *buf)
56 {
57         struct pcmcia_socket *s = to_socket(dev);
58
59         if (!(s->state & SOCKET_PRESENT))
60                 return -ENODEV;
61         if (s->socket.Vcc)
62                 return sprintf(buf, "%d.%dV\n", s->socket.Vcc / 10,
63                                s->socket.Vcc % 10);
64         return sprintf(buf, "X.XV\n");
65 }
66 static CLASS_DEVICE_ATTR(card_voltage, 0444, pccard_show_voltage, NULL);
67
68 static ssize_t pccard_show_vpp(struct class_device *dev, char *buf)
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 }
75 static CLASS_DEVICE_ATTR(card_vpp, 0444, pccard_show_vpp, NULL);
76
77 static ssize_t pccard_show_vcc(struct class_device *dev, char *buf)
78 {
79         struct pcmcia_socket *s = to_socket(dev);
80         if (!(s->state & SOCKET_PRESENT))
81                 return -ENODEV;
82         return sprintf(buf, "%d.%dV\n", s->socket.Vcc / 10, s->socket.Vcc % 10);
83 }
84 static CLASS_DEVICE_ATTR(card_vcc, 0444, pccard_show_vcc, NULL);
85
86
87 static ssize_t pccard_store_insert(struct class_device *dev, const char *buf, size_t count)
88 {
89         ssize_t ret;
90         struct pcmcia_socket *s = to_socket(dev);
91
92         if (!count)
93                 return -EINVAL;
94
95         ret = pcmcia_insert_card(s);
96
97         return ret ? ret : count;
98 }
99 static CLASS_DEVICE_ATTR(card_insert, 0200, NULL, pccard_store_insert);
100
101
102 static ssize_t pccard_show_card_pm_state(struct class_device *dev, char *buf)
103 {
104         struct pcmcia_socket *s = to_socket(dev);
105         return sprintf(buf, "%s\n", s->state & SOCKET_SUSPEND ? "off" : "on");
106 }
107
108 static ssize_t pccard_store_card_pm_state(struct class_device *dev, const char *buf, size_t count)
109 {
110         ssize_t ret = -EINVAL;
111         struct pcmcia_socket *s = to_socket(dev);
112
113         if (!count)
114                 return -EINVAL;
115
116         if (!(s->state & SOCKET_SUSPEND) && !strncmp(buf, "off", 3))
117                 ret = pcmcia_suspend_card(s);
118         else if ((s->state & SOCKET_SUSPEND) && !strncmp(buf, "on", 2))
119                 ret = pcmcia_resume_card(s);
120
121         return ret ? -ENODEV : count;
122 }
123 static CLASS_DEVICE_ATTR(card_pm_state, 0644, pccard_show_card_pm_state, pccard_store_card_pm_state);
124
125 static ssize_t pccard_store_eject(struct class_device *dev, const char *buf, size_t count)
126 {
127         ssize_t ret;
128         struct pcmcia_socket *s = to_socket(dev);
129
130         if (!count)
131                 return -EINVAL;
132
133         ret = pcmcia_eject_card(s);
134
135         return ret ? ret : count;
136 }
137 static CLASS_DEVICE_ATTR(card_eject, 0200, NULL, pccard_store_eject);
138
139
140 static ssize_t pccard_show_irq_mask(struct class_device *dev, char *buf)
141 {
142         struct pcmcia_socket *s = to_socket(dev);
143         return sprintf(buf, "0x%04x\n", s->irq_mask);
144 }
145
146 static ssize_t pccard_store_irq_mask(struct class_device *dev, const char *buf, size_t count)
147 {
148         ssize_t ret;
149         struct pcmcia_socket *s = to_socket(dev);
150         u32 mask;
151
152         if (!count)
153                 return -EINVAL;
154
155         ret = sscanf (buf, "0x%x\n", &mask);
156
157         if (ret == 1) {
158                 s->irq_mask &= mask;
159                 ret = 0;
160         }
161
162         return ret ? ret : count;
163 }
164 static CLASS_DEVICE_ATTR(card_irq_mask, 0600, pccard_show_irq_mask, pccard_store_irq_mask);
165
166
167 static ssize_t pccard_show_resource(struct class_device *dev, char *buf)
168 {
169         struct pcmcia_socket *s = to_socket(dev);
170         return sprintf(buf, "%s\n", s->resource_setup_done ? "yes" : "no");
171 }
172
173 static ssize_t pccard_store_resource(struct class_device *dev, const char *buf, size_t count)
174 {
175         unsigned long flags;
176         struct pcmcia_socket *s = to_socket(dev);
177
178         if (!count)
179                 return -EINVAL;
180
181         spin_lock_irqsave(&s->lock, flags);
182         if (!s->resource_setup_done)
183                 s->resource_setup_done = 1;
184         spin_unlock_irqrestore(&s->lock, flags);
185
186         mutex_lock(&s->skt_mutex);
187         if ((s->callback) &&
188             (s->state & SOCKET_PRESENT) &&
189             !(s->state & SOCKET_CARDBUS)) {
190                 if (try_module_get(s->callback->owner)) {
191                         s->callback->requery(s);
192                         module_put(s->callback->owner);
193                 }
194         }
195         mutex_unlock(&s->skt_mutex);
196
197         return count;
198 }
199 static CLASS_DEVICE_ATTR(available_resources_setup_done, 0600, pccard_show_resource, pccard_store_resource);
200
201
202 static ssize_t pccard_extract_cis(struct pcmcia_socket *s, char *buf, loff_t off, size_t count)
203 {
204         tuple_t tuple;
205         int status, i;
206         loff_t pointer = 0;
207         ssize_t ret = 0;
208         u_char *tuplebuffer;
209         u_char *tempbuffer;
210
211         tuplebuffer = kmalloc(sizeof(u_char) * 256, GFP_KERNEL);
212         if (!tuplebuffer)
213                 return -ENOMEM;
214
215         tempbuffer = kmalloc(sizeof(u_char) * 258, GFP_KERNEL);
216         if (!tempbuffer) {
217                 ret = -ENOMEM;
218                 goto free_tuple;
219         }
220
221         memset(&tuple, 0, sizeof(tuple_t));
222
223         tuple.Attributes = TUPLE_RETURN_LINK | TUPLE_RETURN_COMMON;
224         tuple.DesiredTuple = RETURN_FIRST_TUPLE;
225         tuple.TupleOffset = 0;
226
227         status = pccard_get_first_tuple(s, BIND_FN_ALL, &tuple);
228         while (!status) {
229                 tuple.TupleData = tuplebuffer;
230                 tuple.TupleDataMax = 255;
231                 memset(tuplebuffer, 0, sizeof(u_char) * 255);
232
233                 status = pccard_get_tuple_data(s, &tuple);
234                 if (status)
235                         break;
236
237                 if (off < (pointer + 2 + tuple.TupleDataLen)) {
238                         tempbuffer[0] = tuple.TupleCode & 0xff;
239                         tempbuffer[1] = tuple.TupleLink & 0xff;
240                         for (i = 0; i < tuple.TupleDataLen; i++)
241                                 tempbuffer[i + 2] = tuplebuffer[i] & 0xff;
242
243                         for (i = 0; i < (2 + tuple.TupleDataLen); i++) {
244                                 if (((i + pointer) >= off) &&
245                                     (i + pointer) < (off + count)) {
246                                         buf[ret] = tempbuffer[i];
247                                         ret++;
248                                 }
249                         }
250                 }
251
252                 pointer += 2 + tuple.TupleDataLen;
253
254                 if (pointer >= (off + count))
255                         break;
256
257                 if (tuple.TupleCode == CISTPL_END)
258                         break;
259                 status = pccard_get_next_tuple(s, BIND_FN_ALL, &tuple);
260         }
261
262         kfree(tempbuffer);
263  free_tuple:
264         kfree(tuplebuffer);
265
266         return (ret);
267 }
268
269 static ssize_t pccard_show_cis(struct kobject *kobj, char *buf, loff_t off, size_t count)
270 {
271         unsigned int size = 0x200;
272
273         if (off >= size)
274                 count = 0;
275         else {
276                 struct pcmcia_socket *s;
277                 cisinfo_t cisinfo;
278
279                 if (off + count > size)
280                         count = size - off;
281
282                 s = to_socket(container_of(kobj, struct class_device, kobj));
283
284                 if (!(s->state & SOCKET_PRESENT))
285                         return -ENODEV;
286                 if (pccard_validate_cis(s, BIND_FN_ALL, &cisinfo))
287                         return -EIO;
288                 if (!cisinfo.Chains)
289                         return -ENODATA;
290
291                 count = pccard_extract_cis(s, buf, off, count);
292         }
293
294         return (count);
295 }
296
297 static ssize_t pccard_store_cis(struct kobject *kobj, char *buf, loff_t off, size_t count)
298 {
299         struct pcmcia_socket *s = to_socket(container_of(kobj, struct class_device, kobj));
300         cisdump_t *cis;
301         ssize_t ret = count;
302
303         if (off)
304                 return -EINVAL;
305
306         if (count >= 0x200)
307                 return -EINVAL;
308
309         if (!(s->state & SOCKET_PRESENT))
310                 return -ENODEV;
311
312         cis = kzalloc(sizeof(cisdump_t), GFP_KERNEL);
313         if (!cis)
314                 return -ENOMEM;
315
316         cis->Length = count + 1;
317         memcpy(cis->Data, buf, count);
318
319         if (pcmcia_replace_cis(s, cis))
320                 ret  = -EIO;
321
322         kfree(cis);
323
324         if (!ret) {
325                 mutex_lock(&s->skt_mutex);
326                 if ((s->callback) && (s->state & SOCKET_PRESENT) &&
327                     !(s->state & SOCKET_CARDBUS)) {
328                         if (try_module_get(s->callback->owner)) {
329                                 s->callback->requery(s);
330                                 module_put(s->callback->owner);
331                         }
332                 }
333                 mutex_unlock(&s->skt_mutex);
334         }
335
336
337         return (ret);
338 }
339
340
341 static struct class_device_attribute *pccard_socket_attributes[] = {
342         &class_device_attr_card_type,
343         &class_device_attr_card_voltage,
344         &class_device_attr_card_vpp,
345         &class_device_attr_card_vcc,
346         &class_device_attr_card_insert,
347         &class_device_attr_card_pm_state,
348         &class_device_attr_card_eject,
349         &class_device_attr_card_irq_mask,
350         &class_device_attr_available_resources_setup_done,
351         NULL,
352 };
353
354 static struct bin_attribute pccard_cis_attr = {
355         .attr = { .name = "cis", .mode = S_IRUGO | S_IWUSR, .owner = THIS_MODULE},
356         .size = 0x200,
357         .read = pccard_show_cis,
358         .write = pccard_store_cis,
359 };
360
361 static int __devinit pccard_sysfs_add_socket(struct class_device *class_dev,
362                                              struct class_interface *class_intf)
363 {
364         struct class_device_attribute **attr;
365         int ret = 0;
366
367         for (attr = pccard_socket_attributes; *attr; attr++) {
368                 ret = class_device_create_file(class_dev, *attr);
369                 if (ret)
370                         break;
371         }
372         if (!ret)
373                 ret = sysfs_create_bin_file(&class_dev->kobj, &pccard_cis_attr);
374
375         return ret;
376 }
377
378 static void __devexit pccard_sysfs_remove_socket(struct class_device *class_dev,
379                                                  struct class_interface *class_intf)
380 {
381         struct class_device_attribute **attr;
382
383         sysfs_remove_bin_file(&class_dev->kobj, &pccard_cis_attr);
384         for (attr = pccard_socket_attributes; *attr; attr++)
385                 class_device_remove_file(class_dev, *attr);
386 }
387
388 struct class_interface pccard_sysfs_interface = {
389         .class = &pcmcia_socket_class,
390         .add = &pccard_sysfs_add_socket,
391         .remove = __devexit_p(&pccard_sysfs_remove_socket),
392 };