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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/device.h>
26#include <linux/mutex.h>
27#include <asm/system.h>
28#include <asm/irq.h>
29
30#include <pcmcia/cs_types.h>
31#include <pcmcia/ss.h>
32#include <pcmcia/cs.h>
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
40static ssize_t pccard_show_type(struct device *dev, struct device_attribute *attr,
41 char *buf)
42{
43 struct pcmcia_socket *s = to_socket(dev);
44
45 if (!(s->state & SOCKET_PRESENT))
46 return -ENODEV;
47 if (s->state & SOCKET_CARDBUS)
48 return sprintf(buf, "32-bit\n");
49 return sprintf(buf, "16-bit\n");
50}
51static DEVICE_ATTR(card_type, 0444, pccard_show_type, NULL);
52
53static ssize_t pccard_show_voltage(struct device *dev, struct device_attribute *attr,
54 char *buf)
55{
56 struct pcmcia_socket *s = to_socket(dev);
57
58 if (!(s->state & SOCKET_PRESENT))
59 return -ENODEV;
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");
64}
65static DEVICE_ATTR(card_voltage, 0444, pccard_show_voltage, NULL);
66
67static ssize_t pccard_show_vpp(struct device *dev, struct device_attribute *attr,
68 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}
75static DEVICE_ATTR(card_vpp, 0444, pccard_show_vpp, NULL);
76
77static ssize_t pccard_show_vcc(struct device *dev, struct device_attribute *attr,
78 char *buf)
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}
85static DEVICE_ATTR(card_vcc, 0444, pccard_show_vcc, NULL);
86
87
88static ssize_t pccard_store_insert(struct device *dev, struct device_attribute *attr,
89 const char *buf, size_t count)
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}
101static DEVICE_ATTR(card_insert, 0200, NULL, pccard_store_insert);
102
103
104static ssize_t pccard_show_card_pm_state(struct device *dev,
105 struct device_attribute *attr,
106 char *buf)
107{
108 struct pcmcia_socket *s = to_socket(dev);
109 return sprintf(buf, "%s\n", s->state & SOCKET_SUSPEND ? "off" : "on");
110}
111
112static ssize_t pccard_store_card_pm_state(struct device *dev,
113 struct device_attribute *attr,
114 const char *buf, size_t count)
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}
129static DEVICE_ATTR(card_pm_state, 0644, pccard_show_card_pm_state, pccard_store_card_pm_state);
130
131static ssize_t pccard_store_eject(struct device *dev,
132 struct device_attribute *attr,
133 const char *buf, size_t count)
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}
145static DEVICE_ATTR(card_eject, 0200, NULL, pccard_store_eject);
146
147
148static ssize_t pccard_show_irq_mask(struct device *dev,
149 struct device_attribute *attr,
150 char *buf)
151{
152 struct pcmcia_socket *s = to_socket(dev);
153 return sprintf(buf, "0x%04x\n", s->irq_mask);
154}
155
156static ssize_t pccard_store_irq_mask(struct device *dev,
157 struct device_attribute *attr,
158 const char *buf, size_t count)
159{
160 ssize_t ret;
161 struct pcmcia_socket *s = to_socket(dev);
162 u32 mask;
163
164 if (!count)
165 return -EINVAL;
166
167 ret = sscanf (buf, "0x%x\n", &mask);
168
169 if (ret == 1) {
170 s->irq_mask &= mask;
171 ret = 0;
172 }
173
174 return ret ? ret : count;
175}
176static DEVICE_ATTR(card_irq_mask, 0600, pccard_show_irq_mask, pccard_store_irq_mask);
177
178
179static ssize_t pccard_show_resource(struct device *dev,
180 struct device_attribute *attr, char *buf)
181{
182 struct pcmcia_socket *s = to_socket(dev);
183 return sprintf(buf, "%s\n", s->resource_setup_done ? "yes" : "no");
184}
185
186static ssize_t pccard_store_resource(struct device *dev,
187 struct device_attribute *attr,
188 const char *buf, size_t count)
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);
197 if (!s->resource_setup_done)
198 s->resource_setup_done = 1;
199 spin_unlock_irqrestore(&s->lock, flags);
200
201 mutex_lock(&s->skt_mutex);
202 if ((s->callback) &&
203 (s->state & SOCKET_PRESENT) &&
204 !(s->state & SOCKET_CARDBUS)) {
205 if (try_module_get(s->callback->owner)) {
206 s->callback->requery(s, 0);
207 module_put(s->callback->owner);
208 }
209 }
210 mutex_unlock(&s->skt_mutex);
211
212 return count;
213}
214static DEVICE_ATTR(available_resources_setup_done, 0600, pccard_show_resource, pccard_store_resource);
215
216
217static 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
281 return (ret);
282}
283
284static ssize_t pccard_show_cis(struct kobject *kobj,
285 struct bin_attribute *bin_attr,
286 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 unsigned int chains;
295
296 if (off + count > size)
297 count = size - off;
298
299 s = to_socket(container_of(kobj, struct device, kobj));
300
301 if (!(s->state & SOCKET_PRESENT))
302 return -ENODEV;
303 if (pccard_validate_cis(s, &chains))
304 return -EIO;
305 if (!chains)
306 return -ENODATA;
307
308 count = pccard_extract_cis(s, buf, off, count);
309 }
310
311 return (count);
312}
313
314static ssize_t pccard_store_cis(struct kobject *kobj,
315 struct bin_attribute *bin_attr,
316 char *buf, loff_t off, size_t count)
317{
318 struct pcmcia_socket *s = to_socket(container_of(kobj, struct device, kobj));
319 int error;
320
321 if (off)
322 return -EINVAL;
323
324 if (count >= CISTPL_MAX_CIS_SIZE)
325 return -EINVAL;
326
327 if (!(s->state & SOCKET_PRESENT))
328 return -ENODEV;
329
330 error = pcmcia_replace_cis(s, buf, count);
331 if (error)
332 return -EIO;
333
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)) {
338 s->callback->requery(s, 1);
339 module_put(s->callback->owner);
340 }
341 }
342 mutex_unlock(&s->skt_mutex);
343
344 return count;
345}
346
347
348static 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,
358 NULL,
359};
360
361static const struct attribute_group socket_attrs = {
362 .attrs = pccard_socket_attributes,
363};
364
365static struct bin_attribute pccard_cis_attr = {
366 .attr = { .name = "cis", .mode = S_IRUGO | S_IWUSR },
367 .size = 0x200,
368 .read = pccard_show_cis,
369 .write = pccard_store_cis,
370};
371
372int pccard_sysfs_add_socket(struct device *dev)
373{
374 int ret = 0;
375
376 ret = sysfs_create_group(&dev->kobj, &socket_attrs);
377 if (!ret) {
378 ret = sysfs_create_bin_file(&dev->kobj, &pccard_cis_attr);
379 if (ret)
380 sysfs_remove_group(&dev->kobj, &socket_attrs);
381 }
382 return ret;
383}
384
385void pccard_sysfs_remove_socket(struct device *dev)
386{
387 sysfs_remove_bin_file(&dev->kobj, &pccard_cis_attr);
388 sysfs_remove_group(&dev->kobj, &socket_attrs);
389}
390
