[PATCH] Driver core: pass interface to class interface methods
[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/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
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);
165         if (!s->resource_setup_done)
166                 s->resource_setup_done = 1;
167         spin_unlock_irqrestore(&s->lock, flags);
168
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);
176                 }
177         }
178         up(&s->skt_sem);
179
180         return count;
181 }
182 static CLASS_DEVICE_ATTR(available_resources_setup_done, 0600, pccard_show_resource, pccard_store_resource);
183
184
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
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)) {
313                                 s->callback->requery(s);
314                                 module_put(s->callback->owner);
315                         }
316                 }
317                 up(&s->skt_sem);
318         }
319
320
321         return (ret);
322 }
323
324
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
337 static struct bin_attribute pccard_cis_attr = {
338         .attr = { .name = "cis", .mode = S_IRUGO | S_IWUSR, .owner = THIS_MODULE},
339         .size = 0x200,
340         .read = pccard_show_cis,
341         .write = pccard_store_cis,
342 };
343
344 static int __devinit pccard_sysfs_add_socket(struct class_device *class_dev,
345                                              struct class_interface *class_intf)
346 {
347         struct class_device_attribute **attr;
348         int ret = 0;
349
350         for (attr = pccard_socket_attributes; *attr; attr++) {
351                 ret = class_device_create_file(class_dev, *attr);
352                 if (ret)
353                         break;
354         }
355         if (!ret)
356                 ret = sysfs_create_bin_file(&class_dev->kobj, &pccard_cis_attr);
357
358         return ret;
359 }
360
361 static void __devexit pccard_sysfs_remove_socket(struct class_device *class_dev,
362                                                  struct class_interface *class_intf)
363 {
364         struct class_device_attribute **attr;
365
366         sysfs_remove_bin_file(&class_dev->kobj, &pccard_cis_attr);
367         for (attr = pccard_socket_attributes; *attr; attr++)
368                 class_device_remove_file(class_dev, *attr);
369 }
370
371 struct class_interface pccard_sysfs_interface = {
372         .class = &pcmcia_socket_class,
373         .add = &pccard_sysfs_add_socket,
374         .remove = __devexit_p(&pccard_sysfs_remove_socket),
375 };