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path: root/drivers/media/usb/pvrusb2/pvrusb2-sysfs.c
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Diffstat (limited to 'drivers/media/usb/pvrusb2/pvrusb2-sysfs.c')
-rw-r--r--drivers/media/usb/pvrusb2/pvrusb2-sysfs.c861
1 files changed, 861 insertions, 0 deletions
diff --git a/drivers/media/usb/pvrusb2/pvrusb2-sysfs.c b/drivers/media/usb/pvrusb2/pvrusb2-sysfs.c
new file mode 100644
index 000000000000..6ef1335b2858
--- /dev/null
+++ b/drivers/media/usb/pvrusb2/pvrusb2-sysfs.c
@@ -0,0 +1,861 @@
1/*
2 *
3 *
4 * Copyright (C) 2005 Mike Isely <isely@pobox.com>
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License
9 *
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
14 *
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
18 *
19 */
20
21#include <linux/string.h>
22#include <linux/slab.h>
23#include "pvrusb2-sysfs.h"
24#include "pvrusb2-hdw.h"
25#include "pvrusb2-debug.h"
26#ifdef CONFIG_VIDEO_PVRUSB2_DEBUGIFC
27#include "pvrusb2-debugifc.h"
28#endif /* CONFIG_VIDEO_PVRUSB2_DEBUGIFC */
29
30#define pvr2_sysfs_trace(...) pvr2_trace(PVR2_TRACE_SYSFS,__VA_ARGS__)
31
32struct pvr2_sysfs {
33 struct pvr2_channel channel;
34 struct device *class_dev;
35#ifdef CONFIG_VIDEO_PVRUSB2_DEBUGIFC
36 struct pvr2_sysfs_debugifc *debugifc;
37#endif /* CONFIG_VIDEO_PVRUSB2_DEBUGIFC */
38 struct pvr2_sysfs_ctl_item *item_first;
39 struct pvr2_sysfs_ctl_item *item_last;
40 struct device_attribute attr_v4l_minor_number;
41 struct device_attribute attr_v4l_radio_minor_number;
42 struct device_attribute attr_unit_number;
43 struct device_attribute attr_bus_info;
44 struct device_attribute attr_hdw_name;
45 struct device_attribute attr_hdw_desc;
46 int v4l_minor_number_created_ok;
47 int v4l_radio_minor_number_created_ok;
48 int unit_number_created_ok;
49 int bus_info_created_ok;
50 int hdw_name_created_ok;
51 int hdw_desc_created_ok;
52};
53
54#ifdef CONFIG_VIDEO_PVRUSB2_DEBUGIFC
55struct pvr2_sysfs_debugifc {
56 struct device_attribute attr_debugcmd;
57 struct device_attribute attr_debuginfo;
58 int debugcmd_created_ok;
59 int debuginfo_created_ok;
60};
61#endif /* CONFIG_VIDEO_PVRUSB2_DEBUGIFC */
62
63struct pvr2_sysfs_ctl_item {
64 struct device_attribute attr_name;
65 struct device_attribute attr_type;
66 struct device_attribute attr_min;
67 struct device_attribute attr_max;
68 struct device_attribute attr_def;
69 struct device_attribute attr_enum;
70 struct device_attribute attr_bits;
71 struct device_attribute attr_val;
72 struct device_attribute attr_custom;
73 struct pvr2_ctrl *cptr;
74 int ctl_id;
75 struct pvr2_sysfs *chptr;
76 struct pvr2_sysfs_ctl_item *item_next;
77 struct attribute *attr_gen[8];
78 struct attribute_group grp;
79 int created_ok;
80 char name[80];
81};
82
83struct pvr2_sysfs_class {
84 struct class class;
85};
86
87static ssize_t show_name(struct device *class_dev,
88 struct device_attribute *attr,
89 char *buf)
90{
91 struct pvr2_sysfs_ctl_item *cip;
92 const char *name;
93 cip = container_of(attr, struct pvr2_sysfs_ctl_item, attr_name);
94 name = pvr2_ctrl_get_desc(cip->cptr);
95 pvr2_sysfs_trace("pvr2_sysfs(%p) show_name(cid=%d) is %s",
96 cip->chptr, cip->ctl_id, name);
97 if (!name) return -EINVAL;
98 return scnprintf(buf, PAGE_SIZE, "%s\n", name);
99}
100
101static ssize_t show_type(struct device *class_dev,
102 struct device_attribute *attr,
103 char *buf)
104{
105 struct pvr2_sysfs_ctl_item *cip;
106 const char *name;
107 enum pvr2_ctl_type tp;
108 cip = container_of(attr, struct pvr2_sysfs_ctl_item, attr_type);
109 tp = pvr2_ctrl_get_type(cip->cptr);
110 switch (tp) {
111 case pvr2_ctl_int: name = "integer"; break;
112 case pvr2_ctl_enum: name = "enum"; break;
113 case pvr2_ctl_bitmask: name = "bitmask"; break;
114 case pvr2_ctl_bool: name = "boolean"; break;
115 default: name = "?"; break;
116 }
117 pvr2_sysfs_trace("pvr2_sysfs(%p) show_type(cid=%d) is %s",
118 cip->chptr, cip->ctl_id, name);
119 if (!name) return -EINVAL;
120 return scnprintf(buf, PAGE_SIZE, "%s\n", name);
121}
122
123static ssize_t show_min(struct device *class_dev,
124 struct device_attribute *attr,
125 char *buf)
126{
127 struct pvr2_sysfs_ctl_item *cip;
128 long val;
129 cip = container_of(attr, struct pvr2_sysfs_ctl_item, attr_min);
130 val = pvr2_ctrl_get_min(cip->cptr);
131 pvr2_sysfs_trace("pvr2_sysfs(%p) show_min(cid=%d) is %ld",
132 cip->chptr, cip->ctl_id, val);
133 return scnprintf(buf, PAGE_SIZE, "%ld\n", val);
134}
135
136static ssize_t show_max(struct device *class_dev,
137 struct device_attribute *attr,
138 char *buf)
139{
140 struct pvr2_sysfs_ctl_item *cip;
141 long val;
142 cip = container_of(attr, struct pvr2_sysfs_ctl_item, attr_max);
143 val = pvr2_ctrl_get_max(cip->cptr);
144 pvr2_sysfs_trace("pvr2_sysfs(%p) show_max(cid=%d) is %ld",
145 cip->chptr, cip->ctl_id, val);
146 return scnprintf(buf, PAGE_SIZE, "%ld\n", val);
147}
148
149static ssize_t show_def(struct device *class_dev,
150 struct device_attribute *attr,
151 char *buf)
152{
153 struct pvr2_sysfs_ctl_item *cip;
154 int val;
155 int ret;
156 unsigned int cnt = 0;
157 cip = container_of(attr, struct pvr2_sysfs_ctl_item, attr_def);
158 ret = pvr2_ctrl_get_def(cip->cptr, &val);
159 if (ret < 0) return ret;
160 ret = pvr2_ctrl_value_to_sym(cip->cptr, ~0, val,
161 buf, PAGE_SIZE - 1, &cnt);
162 pvr2_sysfs_trace("pvr2_sysfs(%p) show_def(cid=%d) is %.*s (%d)",
163 cip->chptr, cip->ctl_id, cnt, buf, val);
164 buf[cnt] = '\n';
165 return cnt + 1;
166}
167
168static ssize_t show_val_norm(struct device *class_dev,
169 struct device_attribute *attr,
170 char *buf)
171{
172 struct pvr2_sysfs_ctl_item *cip;
173 int val;
174 int ret;
175 unsigned int cnt = 0;
176 cip = container_of(attr, struct pvr2_sysfs_ctl_item, attr_val);
177 ret = pvr2_ctrl_get_value(cip->cptr, &val);
178 if (ret < 0) return ret;
179 ret = pvr2_ctrl_value_to_sym(cip->cptr, ~0, val,
180 buf, PAGE_SIZE - 1, &cnt);
181 pvr2_sysfs_trace("pvr2_sysfs(%p) show_val_norm(cid=%d) is %.*s (%d)",
182 cip->chptr, cip->ctl_id, cnt, buf, val);
183 buf[cnt] = '\n';
184 return cnt+1;
185}
186
187static ssize_t show_val_custom(struct device *class_dev,
188 struct device_attribute *attr,
189 char *buf)
190{
191 struct pvr2_sysfs_ctl_item *cip;
192 int val;
193 int ret;
194 unsigned int cnt = 0;
195 cip = container_of(attr, struct pvr2_sysfs_ctl_item, attr_custom);
196 ret = pvr2_ctrl_get_value(cip->cptr, &val);
197 if (ret < 0) return ret;
198 ret = pvr2_ctrl_custom_value_to_sym(cip->cptr, ~0, val,
199 buf, PAGE_SIZE - 1, &cnt);
200 pvr2_sysfs_trace("pvr2_sysfs(%p) show_val_custom(cid=%d) is %.*s (%d)",
201 cip->chptr, cip->ctl_id, cnt, buf, val);
202 buf[cnt] = '\n';
203 return cnt+1;
204}
205
206static ssize_t show_enum(struct device *class_dev,
207 struct device_attribute *attr,
208 char *buf)
209{
210 struct pvr2_sysfs_ctl_item *cip;
211 long val;
212 unsigned int bcnt, ccnt, ecnt;
213 cip = container_of(attr, struct pvr2_sysfs_ctl_item, attr_enum);
214 ecnt = pvr2_ctrl_get_cnt(cip->cptr);
215 bcnt = 0;
216 for (val = 0; val < ecnt; val++) {
217 pvr2_ctrl_get_valname(cip->cptr, val, buf + bcnt,
218 PAGE_SIZE - bcnt, &ccnt);
219 if (!ccnt) continue;
220 bcnt += ccnt;
221 if (bcnt >= PAGE_SIZE) break;
222 buf[bcnt] = '\n';
223 bcnt++;
224 }
225 pvr2_sysfs_trace("pvr2_sysfs(%p) show_enum(cid=%d)",
226 cip->chptr, cip->ctl_id);
227 return bcnt;
228}
229
230static ssize_t show_bits(struct device *class_dev,
231 struct device_attribute *attr,
232 char *buf)
233{
234 struct pvr2_sysfs_ctl_item *cip;
235 int valid_bits, msk;
236 unsigned int bcnt, ccnt;
237 cip = container_of(attr, struct pvr2_sysfs_ctl_item, attr_bits);
238 valid_bits = pvr2_ctrl_get_mask(cip->cptr);
239 bcnt = 0;
240 for (msk = 1; valid_bits; msk <<= 1) {
241 if (!(msk & valid_bits)) continue;
242 valid_bits &= ~msk;
243 pvr2_ctrl_get_valname(cip->cptr, msk, buf + bcnt,
244 PAGE_SIZE - bcnt, &ccnt);
245 bcnt += ccnt;
246 if (bcnt >= PAGE_SIZE) break;
247 buf[bcnt] = '\n';
248 bcnt++;
249 }
250 pvr2_sysfs_trace("pvr2_sysfs(%p) show_bits(cid=%d)",
251 cip->chptr, cip->ctl_id);
252 return bcnt;
253}
254
255static int store_val_any(struct pvr2_sysfs_ctl_item *cip, int customfl,
256 const char *buf,unsigned int count)
257{
258 int ret;
259 int mask,val;
260 if (customfl) {
261 ret = pvr2_ctrl_custom_sym_to_value(cip->cptr, buf, count,
262 &mask, &val);
263 } else {
264 ret = pvr2_ctrl_sym_to_value(cip->cptr, buf, count,
265 &mask, &val);
266 }
267 if (ret < 0) return ret;
268 ret = pvr2_ctrl_set_mask_value(cip->cptr, mask, val);
269 pvr2_hdw_commit_ctl(cip->chptr->channel.hdw);
270 return ret;
271}
272
273static ssize_t store_val_norm(struct device *class_dev,
274 struct device_attribute *attr,
275 const char *buf, size_t count)
276{
277 struct pvr2_sysfs_ctl_item *cip;
278 int ret;
279 cip = container_of(attr, struct pvr2_sysfs_ctl_item, attr_val);
280 pvr2_sysfs_trace("pvr2_sysfs(%p) store_val_norm(cid=%d) \"%.*s\"",
281 cip->chptr, cip->ctl_id, (int)count, buf);
282 ret = store_val_any(cip, 0, buf, count);
283 if (!ret) ret = count;
284 return ret;
285}
286
287static ssize_t store_val_custom(struct device *class_dev,
288 struct device_attribute *attr,
289 const char *buf, size_t count)
290{
291 struct pvr2_sysfs_ctl_item *cip;
292 int ret;
293 cip = container_of(attr, struct pvr2_sysfs_ctl_item, attr_custom);
294 pvr2_sysfs_trace("pvr2_sysfs(%p) store_val_custom(cid=%d) \"%.*s\"",
295 cip->chptr, cip->ctl_id, (int)count, buf);
296 ret = store_val_any(cip, 1, buf, count);
297 if (!ret) ret = count;
298 return ret;
299}
300
301static void pvr2_sysfs_add_control(struct pvr2_sysfs *sfp,int ctl_id)
302{
303 struct pvr2_sysfs_ctl_item *cip;
304 struct pvr2_ctrl *cptr;
305 unsigned int cnt,acnt;
306 int ret;
307
308 cptr = pvr2_hdw_get_ctrl_by_index(sfp->channel.hdw,ctl_id);
309 if (!cptr) return;
310
311 cip = kzalloc(sizeof(*cip),GFP_KERNEL);
312 if (!cip) return;
313 pvr2_sysfs_trace("Creating pvr2_sysfs_ctl_item id=%p",cip);
314
315 cip->cptr = cptr;
316 cip->ctl_id = ctl_id;
317
318 cip->chptr = sfp;
319 cip->item_next = NULL;
320 if (sfp->item_last) {
321 sfp->item_last->item_next = cip;
322 } else {
323 sfp->item_first = cip;
324 }
325 sfp->item_last = cip;
326
327 sysfs_attr_init(&cip->attr_name.attr);
328 cip->attr_name.attr.name = "name";
329 cip->attr_name.attr.mode = S_IRUGO;
330 cip->attr_name.show = show_name;
331
332 sysfs_attr_init(&cip->attr_type.attr);
333 cip->attr_type.attr.name = "type";
334 cip->attr_type.attr.mode = S_IRUGO;
335 cip->attr_type.show = show_type;
336
337 sysfs_attr_init(&cip->attr_min.attr);
338 cip->attr_min.attr.name = "min_val";
339 cip->attr_min.attr.mode = S_IRUGO;
340 cip->attr_min.show = show_min;
341
342 sysfs_attr_init(&cip->attr_max.attr);
343 cip->attr_max.attr.name = "max_val";
344 cip->attr_max.attr.mode = S_IRUGO;
345 cip->attr_max.show = show_max;
346
347 sysfs_attr_init(&cip->attr_def.attr);
348 cip->attr_def.attr.name = "def_val";
349 cip->attr_def.attr.mode = S_IRUGO;
350 cip->attr_def.show = show_def;
351
352 sysfs_attr_init(&cip->attr_val.attr);
353 cip->attr_val.attr.name = "cur_val";
354 cip->attr_val.attr.mode = S_IRUGO;
355
356 sysfs_attr_init(&cip->attr_custom.attr);
357 cip->attr_custom.attr.name = "custom_val";
358 cip->attr_custom.attr.mode = S_IRUGO;
359
360 sysfs_attr_init(&cip->attr_enum.attr);
361 cip->attr_enum.attr.name = "enum_val";
362 cip->attr_enum.attr.mode = S_IRUGO;
363 cip->attr_enum.show = show_enum;
364
365 sysfs_attr_init(&cip->attr_bits.attr);
366 cip->attr_bits.attr.name = "bit_val";
367 cip->attr_bits.attr.mode = S_IRUGO;
368 cip->attr_bits.show = show_bits;
369
370 if (pvr2_ctrl_is_writable(cptr)) {
371 cip->attr_val.attr.mode |= S_IWUSR|S_IWGRP;
372 cip->attr_custom.attr.mode |= S_IWUSR|S_IWGRP;
373 }
374
375 acnt = 0;
376 cip->attr_gen[acnt++] = &cip->attr_name.attr;
377 cip->attr_gen[acnt++] = &cip->attr_type.attr;
378 cip->attr_gen[acnt++] = &cip->attr_val.attr;
379 cip->attr_gen[acnt++] = &cip->attr_def.attr;
380 cip->attr_val.show = show_val_norm;
381 cip->attr_val.store = store_val_norm;
382 if (pvr2_ctrl_has_custom_symbols(cptr)) {
383 cip->attr_gen[acnt++] = &cip->attr_custom.attr;
384 cip->attr_custom.show = show_val_custom;
385 cip->attr_custom.store = store_val_custom;
386 }
387 switch (pvr2_ctrl_get_type(cptr)) {
388 case pvr2_ctl_enum:
389 // Control is an enumeration
390 cip->attr_gen[acnt++] = &cip->attr_enum.attr;
391 break;
392 case pvr2_ctl_int:
393 // Control is an integer
394 cip->attr_gen[acnt++] = &cip->attr_min.attr;
395 cip->attr_gen[acnt++] = &cip->attr_max.attr;
396 break;
397 case pvr2_ctl_bitmask:
398 // Control is an bitmask
399 cip->attr_gen[acnt++] = &cip->attr_bits.attr;
400 break;
401 default: break;
402 }
403
404 cnt = scnprintf(cip->name,sizeof(cip->name)-1,"ctl_%s",
405 pvr2_ctrl_get_name(cptr));
406 cip->name[cnt] = 0;
407 cip->grp.name = cip->name;
408 cip->grp.attrs = cip->attr_gen;
409
410 ret = sysfs_create_group(&sfp->class_dev->kobj,&cip->grp);
411 if (ret) {
412 pvr2_trace(PVR2_TRACE_ERROR_LEGS,
413 "sysfs_create_group error: %d",
414 ret);
415 return;
416 }
417 cip->created_ok = !0;
418}
419
420#ifdef CONFIG_VIDEO_PVRUSB2_DEBUGIFC
421static ssize_t debuginfo_show(struct device *, struct device_attribute *,
422 char *);
423static ssize_t debugcmd_show(struct device *, struct device_attribute *,
424 char *);
425static ssize_t debugcmd_store(struct device *, struct device_attribute *,
426 const char *, size_t count);
427
428static void pvr2_sysfs_add_debugifc(struct pvr2_sysfs *sfp)
429{
430 struct pvr2_sysfs_debugifc *dip;
431 int ret;
432
433 dip = kzalloc(sizeof(*dip),GFP_KERNEL);
434 if (!dip) return;
435 sysfs_attr_init(&dip->attr_debugcmd.attr);
436 dip->attr_debugcmd.attr.name = "debugcmd";
437 dip->attr_debugcmd.attr.mode = S_IRUGO|S_IWUSR|S_IWGRP;
438 dip->attr_debugcmd.show = debugcmd_show;
439 dip->attr_debugcmd.store = debugcmd_store;
440 sysfs_attr_init(&dip->attr_debuginfo.attr);
441 dip->attr_debuginfo.attr.name = "debuginfo";
442 dip->attr_debuginfo.attr.mode = S_IRUGO;
443 dip->attr_debuginfo.show = debuginfo_show;
444 sfp->debugifc = dip;
445 ret = device_create_file(sfp->class_dev,&dip->attr_debugcmd);
446 if (ret < 0) {
447 pvr2_trace(PVR2_TRACE_ERROR_LEGS,
448 "device_create_file error: %d",
449 ret);
450 } else {
451 dip->debugcmd_created_ok = !0;
452 }
453 ret = device_create_file(sfp->class_dev,&dip->attr_debuginfo);
454 if (ret < 0) {
455 pvr2_trace(PVR2_TRACE_ERROR_LEGS,
456 "device_create_file error: %d",
457 ret);
458 } else {
459 dip->debuginfo_created_ok = !0;
460 }
461}
462
463
464static void pvr2_sysfs_tear_down_debugifc(struct pvr2_sysfs *sfp)
465{
466 if (!sfp->debugifc) return;
467 if (sfp->debugifc->debuginfo_created_ok) {
468 device_remove_file(sfp->class_dev,
469 &sfp->debugifc->attr_debuginfo);
470 }
471 if (sfp->debugifc->debugcmd_created_ok) {
472 device_remove_file(sfp->class_dev,
473 &sfp->debugifc->attr_debugcmd);
474 }
475 kfree(sfp->debugifc);
476 sfp->debugifc = NULL;
477}
478#endif /* CONFIG_VIDEO_PVRUSB2_DEBUGIFC */
479
480
481static void pvr2_sysfs_add_controls(struct pvr2_sysfs *sfp)
482{
483 unsigned int idx,cnt;
484 cnt = pvr2_hdw_get_ctrl_count(sfp->channel.hdw);
485 for (idx = 0; idx < cnt; idx++) {
486 pvr2_sysfs_add_control(sfp,idx);
487 }
488}
489
490
491static void pvr2_sysfs_tear_down_controls(struct pvr2_sysfs *sfp)
492{
493 struct pvr2_sysfs_ctl_item *cip1,*cip2;
494 for (cip1 = sfp->item_first; cip1; cip1 = cip2) {
495 cip2 = cip1->item_next;
496 if (cip1->created_ok) {
497 sysfs_remove_group(&sfp->class_dev->kobj,&cip1->grp);
498 }
499 pvr2_sysfs_trace("Destroying pvr2_sysfs_ctl_item id=%p",cip1);
500 kfree(cip1);
501 }
502}
503
504
505static void pvr2_sysfs_class_release(struct class *class)
506{
507 struct pvr2_sysfs_class *clp;
508 clp = container_of(class,struct pvr2_sysfs_class,class);
509 pvr2_sysfs_trace("Destroying pvr2_sysfs_class id=%p",clp);
510 kfree(clp);
511}
512
513
514static void pvr2_sysfs_release(struct device *class_dev)
515{
516 pvr2_sysfs_trace("Releasing class_dev id=%p",class_dev);
517 kfree(class_dev);
518}
519
520
521static void class_dev_destroy(struct pvr2_sysfs *sfp)
522{
523 struct device *dev;
524 if (!sfp->class_dev) return;
525#ifdef CONFIG_VIDEO_PVRUSB2_DEBUGIFC
526 pvr2_sysfs_tear_down_debugifc(sfp);
527#endif /* CONFIG_VIDEO_PVRUSB2_DEBUGIFC */
528 pvr2_sysfs_tear_down_controls(sfp);
529 if (sfp->hdw_desc_created_ok) {
530 device_remove_file(sfp->class_dev,
531 &sfp->attr_hdw_desc);
532 }
533 if (sfp->hdw_name_created_ok) {
534 device_remove_file(sfp->class_dev,
535 &sfp->attr_hdw_name);
536 }
537 if (sfp->bus_info_created_ok) {
538 device_remove_file(sfp->class_dev,
539 &sfp->attr_bus_info);
540 }
541 if (sfp->v4l_minor_number_created_ok) {
542 device_remove_file(sfp->class_dev,
543 &sfp->attr_v4l_minor_number);
544 }
545 if (sfp->v4l_radio_minor_number_created_ok) {
546 device_remove_file(sfp->class_dev,
547 &sfp->attr_v4l_radio_minor_number);
548 }
549 if (sfp->unit_number_created_ok) {
550 device_remove_file(sfp->class_dev,
551 &sfp->attr_unit_number);
552 }
553 pvr2_sysfs_trace("Destroying class_dev id=%p",sfp->class_dev);
554 dev_set_drvdata(sfp->class_dev, NULL);
555 dev = sfp->class_dev->parent;
556 sfp->class_dev->parent = NULL;
557 put_device(dev);
558 device_unregister(sfp->class_dev);
559 sfp->class_dev = NULL;
560}
561
562
563static ssize_t v4l_minor_number_show(struct device *class_dev,
564 struct device_attribute *attr, char *buf)
565{
566 struct pvr2_sysfs *sfp;
567 sfp = dev_get_drvdata(class_dev);
568 if (!sfp) return -EINVAL;
569 return scnprintf(buf,PAGE_SIZE,"%d\n",
570 pvr2_hdw_v4l_get_minor_number(sfp->channel.hdw,
571 pvr2_v4l_type_video));
572}
573
574
575static ssize_t bus_info_show(struct device *class_dev,
576 struct device_attribute *attr, char *buf)
577{
578 struct pvr2_sysfs *sfp;
579 sfp = dev_get_drvdata(class_dev);
580 if (!sfp) return -EINVAL;
581 return scnprintf(buf,PAGE_SIZE,"%s\n",
582 pvr2_hdw_get_bus_info(sfp->channel.hdw));
583}
584
585
586static ssize_t hdw_name_show(struct device *class_dev,
587 struct device_attribute *attr, char *buf)
588{
589 struct pvr2_sysfs *sfp;
590 sfp = dev_get_drvdata(class_dev);
591 if (!sfp) return -EINVAL;
592 return scnprintf(buf,PAGE_SIZE,"%s\n",
593 pvr2_hdw_get_type(sfp->channel.hdw));
594}
595
596
597static ssize_t hdw_desc_show(struct device *class_dev,
598 struct device_attribute *attr, char *buf)
599{
600 struct pvr2_sysfs *sfp;
601 sfp = dev_get_drvdata(class_dev);
602 if (!sfp) return -EINVAL;
603 return scnprintf(buf,PAGE_SIZE,"%s\n",
604 pvr2_hdw_get_desc(sfp->channel.hdw));
605}
606
607
608static ssize_t v4l_radio_minor_number_show(struct device *class_dev,
609 struct device_attribute *attr,
610 char *buf)
611{
612 struct pvr2_sysfs *sfp;
613 sfp = dev_get_drvdata(class_dev);
614 if (!sfp) return -EINVAL;
615 return scnprintf(buf,PAGE_SIZE,"%d\n",
616 pvr2_hdw_v4l_get_minor_number(sfp->channel.hdw,
617 pvr2_v4l_type_radio));
618}
619
620
621static ssize_t unit_number_show(struct device *class_dev,
622 struct device_attribute *attr, char *buf)
623{
624 struct pvr2_sysfs *sfp;
625 sfp = dev_get_drvdata(class_dev);
626 if (!sfp) return -EINVAL;
627 return scnprintf(buf,PAGE_SIZE,"%d\n",
628 pvr2_hdw_get_unit_number(sfp->channel.hdw));
629}
630
631
632static void class_dev_create(struct pvr2_sysfs *sfp,
633 struct pvr2_sysfs_class *class_ptr)
634{
635 struct usb_device *usb_dev;
636 struct device *class_dev;
637 int ret;
638
639 usb_dev = pvr2_hdw_get_dev(sfp->channel.hdw);
640 if (!usb_dev) return;
641 class_dev = kzalloc(sizeof(*class_dev),GFP_KERNEL);
642 if (!class_dev) return;
643
644 pvr2_sysfs_trace("Creating class_dev id=%p",class_dev);
645
646 class_dev->class = &class_ptr->class;
647
648 dev_set_name(class_dev, "%s",
649 pvr2_hdw_get_device_identifier(sfp->channel.hdw));
650
651 class_dev->parent = get_device(&usb_dev->dev);
652
653 sfp->class_dev = class_dev;
654 dev_set_drvdata(class_dev, sfp);
655 ret = device_register(class_dev);
656 if (ret) {
657 pvr2_trace(PVR2_TRACE_ERROR_LEGS,
658 "device_register failed");
659 put_device(class_dev);
660 return;
661 }
662
663 sysfs_attr_init(&sfp->attr_v4l_minor_number.attr);
664 sfp->attr_v4l_minor_number.attr.name = "v4l_minor_number";
665 sfp->attr_v4l_minor_number.attr.mode = S_IRUGO;
666 sfp->attr_v4l_minor_number.show = v4l_minor_number_show;
667 sfp->attr_v4l_minor_number.store = NULL;
668 ret = device_create_file(sfp->class_dev,
669 &sfp->attr_v4l_minor_number);
670 if (ret < 0) {
671 pvr2_trace(PVR2_TRACE_ERROR_LEGS,
672 "device_create_file error: %d",
673 ret);
674 } else {
675 sfp->v4l_minor_number_created_ok = !0;
676 }
677
678 sysfs_attr_init(&sfp->attr_v4l_radio_minor_number.attr);
679 sfp->attr_v4l_radio_minor_number.attr.name = "v4l_radio_minor_number";
680 sfp->attr_v4l_radio_minor_number.attr.mode = S_IRUGO;
681 sfp->attr_v4l_radio_minor_number.show = v4l_radio_minor_number_show;
682 sfp->attr_v4l_radio_minor_number.store = NULL;
683 ret = device_create_file(sfp->class_dev,
684 &sfp->attr_v4l_radio_minor_number);
685 if (ret < 0) {
686 pvr2_trace(PVR2_TRACE_ERROR_LEGS,
687 "device_create_file error: %d",
688 ret);
689 } else {
690 sfp->v4l_radio_minor_number_created_ok = !0;
691 }
692
693 sysfs_attr_init(&sfp->attr_unit_number.attr);
694 sfp->attr_unit_number.attr.name = "unit_number";
695 sfp->attr_unit_number.attr.mode = S_IRUGO;
696 sfp->attr_unit_number.show = unit_number_show;
697 sfp->attr_unit_number.store = NULL;
698 ret = device_create_file(sfp->class_dev,&sfp->attr_unit_number);
699 if (ret < 0) {
700 pvr2_trace(PVR2_TRACE_ERROR_LEGS,
701 "device_create_file error: %d",
702 ret);
703 } else {
704 sfp->unit_number_created_ok = !0;
705 }
706
707 sysfs_attr_init(&sfp->attr_bus_info.attr);
708 sfp->attr_bus_info.attr.name = "bus_info_str";
709 sfp->attr_bus_info.attr.mode = S_IRUGO;
710 sfp->attr_bus_info.show = bus_info_show;
711 sfp->attr_bus_info.store = NULL;
712 ret = device_create_file(sfp->class_dev,
713 &sfp->attr_bus_info);
714 if (ret < 0) {
715 pvr2_trace(PVR2_TRACE_ERROR_LEGS,
716 "device_create_file error: %d",
717 ret);
718 } else {
719 sfp->bus_info_created_ok = !0;
720 }
721
722 sysfs_attr_init(&sfp->attr_hdw_name.attr);
723 sfp->attr_hdw_name.attr.name = "device_hardware_type";
724 sfp->attr_hdw_name.attr.mode = S_IRUGO;
725 sfp->attr_hdw_name.show = hdw_name_show;
726 sfp->attr_hdw_name.store = NULL;
727 ret = device_create_file(sfp->class_dev,
728 &sfp->attr_hdw_name);
729 if (ret < 0) {
730 pvr2_trace(PVR2_TRACE_ERROR_LEGS,
731 "device_create_file error: %d",
732 ret);
733 } else {
734 sfp->hdw_name_created_ok = !0;
735 }
736
737 sysfs_attr_init(&sfp->attr_hdw_desc.attr);
738 sfp->attr_hdw_desc.attr.name = "device_hardware_description";
739 sfp->attr_hdw_desc.attr.mode = S_IRUGO;
740 sfp->attr_hdw_desc.show = hdw_desc_show;
741 sfp->attr_hdw_desc.store = NULL;
742 ret = device_create_file(sfp->class_dev,
743 &sfp->attr_hdw_desc);
744 if (ret < 0) {
745 pvr2_trace(PVR2_TRACE_ERROR_LEGS,
746 "device_create_file error: %d",
747 ret);
748 } else {
749 sfp->hdw_desc_created_ok = !0;
750 }
751
752 pvr2_sysfs_add_controls(sfp);
753#ifdef CONFIG_VIDEO_PVRUSB2_DEBUGIFC
754 pvr2_sysfs_add_debugifc(sfp);
755#endif /* CONFIG_VIDEO_PVRUSB2_DEBUGIFC */
756}
757
758
759static void pvr2_sysfs_internal_check(struct pvr2_channel *chp)
760{
761 struct pvr2_sysfs *sfp;
762 sfp = container_of(chp,struct pvr2_sysfs,channel);
763 if (!sfp->channel.mc_head->disconnect_flag) return;
764 pvr2_trace(PVR2_TRACE_STRUCT,"Destroying pvr2_sysfs id=%p",sfp);
765 class_dev_destroy(sfp);
766 pvr2_channel_done(&sfp->channel);
767 kfree(sfp);
768}
769
770
771struct pvr2_sysfs *pvr2_sysfs_create(struct pvr2_context *mp,
772 struct pvr2_sysfs_class *class_ptr)
773{
774 struct pvr2_sysfs *sfp;
775 sfp = kzalloc(sizeof(*sfp),GFP_KERNEL);
776 if (!sfp) return sfp;
777 pvr2_trace(PVR2_TRACE_STRUCT,"Creating pvr2_sysfs id=%p",sfp);
778 pvr2_channel_init(&sfp->channel,mp);
779 sfp->channel.check_func = pvr2_sysfs_internal_check;
780
781 class_dev_create(sfp,class_ptr);
782 return sfp;
783}
784
785
786
787struct pvr2_sysfs_class *pvr2_sysfs_class_create(void)
788{
789 struct pvr2_sysfs_class *clp;
790 clp = kzalloc(sizeof(*clp),GFP_KERNEL);
791 if (!clp) return clp;
792 pvr2_sysfs_trace("Creating and registering pvr2_sysfs_class id=%p",
793 clp);
794 clp->class.name = "pvrusb2";
795 clp->class.class_release = pvr2_sysfs_class_release;
796 clp->class.dev_release = pvr2_sysfs_release;
797 if (class_register(&clp->class)) {
798 pvr2_sysfs_trace(
799 "Registration failed for pvr2_sysfs_class id=%p",clp);
800 kfree(clp);
801 clp = NULL;
802 }
803 return clp;
804}
805
806
807void pvr2_sysfs_class_destroy(struct pvr2_sysfs_class *clp)
808{
809 pvr2_sysfs_trace("Unregistering pvr2_sysfs_class id=%p", clp);
810 class_unregister(&clp->class);
811}
812
813
814#ifdef CONFIG_VIDEO_PVRUSB2_DEBUGIFC
815static ssize_t debuginfo_show(struct device *class_dev,
816 struct device_attribute *attr, char *buf)
817{
818 struct pvr2_sysfs *sfp;
819 sfp = dev_get_drvdata(class_dev);
820 if (!sfp) return -EINVAL;
821 pvr2_hdw_trigger_module_log(sfp->channel.hdw);
822 return pvr2_debugifc_print_info(sfp->channel.hdw,buf,PAGE_SIZE);
823}
824
825
826static ssize_t debugcmd_show(struct device *class_dev,
827 struct device_attribute *attr, char *buf)
828{
829 struct pvr2_sysfs *sfp;
830 sfp = dev_get_drvdata(class_dev);
831 if (!sfp) return -EINVAL;
832 return pvr2_debugifc_print_status(sfp->channel.hdw,buf,PAGE_SIZE);
833}
834
835
836static ssize_t debugcmd_store(struct device *class_dev,
837 struct device_attribute *attr,
838 const char *buf, size_t count)
839{
840 struct pvr2_sysfs *sfp;
841 int ret;
842
843 sfp = dev_get_drvdata(class_dev);
844 if (!sfp) return -EINVAL;
845
846 ret = pvr2_debugifc_docmd(sfp->channel.hdw,buf,count);
847 if (ret < 0) return ret;
848 return count;
849}
850#endif /* CONFIG_VIDEO_PVRUSB2_DEBUGIFC */
851
852
853/*
854 Stuff for Emacs to see, in order to encourage consistent editing style:
855 *** Local Variables: ***
856 *** mode: c ***
857 *** fill-column: 75 ***
858 *** tab-width: 8 ***
859 *** c-basic-offset: 8 ***
860 *** End: ***
861 */
generated by cgit v1.2.2 (git 2.25.0) at 2025-02-07 05:15:46 -0500