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Diffstat (limited to 'drivers/media/video/pvrusb2/pvrusb2-sysfs.c')
-rw-r--r--drivers/media/video/pvrusb2/pvrusb2-sysfs.c865
1 files changed, 865 insertions, 0 deletions
diff --git a/drivers/media/video/pvrusb2/pvrusb2-sysfs.c b/drivers/media/video/pvrusb2/pvrusb2-sysfs.c
new file mode 100644
index 000000000000..c6e6523d74b4
--- /dev/null
+++ b/drivers/media/video/pvrusb2/pvrusb2-sysfs.c
@@ -0,0 +1,865 @@
1/*
2 *
3 * $Id$
4 *
5 * Copyright (C) 2005 Mike Isely <isely@pobox.com>
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 2 of the License
10 *
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
19 *
20 */
21
22#include <linux/config.h>
23#include <linux/string.h>
24#include <linux/slab.h>
25#include <asm/semaphore.h>
26#include "pvrusb2-sysfs.h"
27#include "pvrusb2-hdw.h"
28#include "pvrusb2-debug.h"
29#ifdef CONFIG_VIDEO_PVRUSB2_DEBUGIFC
30#include "pvrusb2-debugifc.h"
31#endif /* CONFIG_VIDEO_PVRUSB2_DEBUGIFC */
32
33#define pvr2_sysfs_trace(...) pvr2_trace(PVR2_TRACE_SYSFS,__VA_ARGS__)
34
35struct pvr2_sysfs {
36 struct pvr2_channel channel;
37 struct class_device *class_dev;
38#ifdef CONFIG_VIDEO_PVRUSB2_DEBUGIFC
39 struct pvr2_sysfs_debugifc *debugifc;
40#endif /* CONFIG_VIDEO_PVRUSB2_DEBUGIFC */
41 struct pvr2_sysfs_ctl_item *item_first;
42 struct pvr2_sysfs_ctl_item *item_last;
43 struct sysfs_ops kops;
44 struct kobj_type ktype;
45 struct class_device_attribute attr_v4l_minor_number;
46 struct class_device_attribute attr_unit_number;
47};
48
49#ifdef CONFIG_VIDEO_PVRUSB2_DEBUGIFC
50struct pvr2_sysfs_debugifc {
51 struct class_device_attribute attr_debugcmd;
52 struct class_device_attribute attr_debuginfo;
53};
54#endif /* CONFIG_VIDEO_PVRUSB2_DEBUGIFC */
55
56struct pvr2_sysfs_ctl_item {
57 struct class_device_attribute attr_name;
58 struct class_device_attribute attr_type;
59 struct class_device_attribute attr_min;
60 struct class_device_attribute attr_max;
61 struct class_device_attribute attr_enum;
62 struct class_device_attribute attr_bits;
63 struct class_device_attribute attr_val;
64 struct class_device_attribute attr_custom;
65 struct pvr2_ctrl *cptr;
66 struct pvr2_sysfs *chptr;
67 struct pvr2_sysfs_ctl_item *item_next;
68 struct attribute *attr_gen[7];
69 struct attribute_group grp;
70 char name[80];
71};
72
73struct pvr2_sysfs_class {
74 struct class class;
75};
76
77static ssize_t show_name(int id,struct class_device *class_dev,char *buf)
78{
79 struct pvr2_ctrl *cptr;
80 struct pvr2_sysfs *sfp;
81 const char *name;
82
83 sfp = (struct pvr2_sysfs *)class_dev->class_data;
84 if (!sfp) return -EINVAL;
85 cptr = pvr2_hdw_get_ctrl_by_index(sfp->channel.hdw,id);
86 if (!cptr) return -EINVAL;
87
88 name = pvr2_ctrl_get_desc(cptr);
89 pvr2_sysfs_trace("pvr2_sysfs(%p) show_name(cid=%d) is %s",sfp,id,name);
90
91 if (!name) return -EINVAL;
92
93 return scnprintf(buf,PAGE_SIZE,"%s\n",name);
94}
95
96static ssize_t show_type(int id,struct class_device *class_dev,char *buf)
97{
98 struct pvr2_ctrl *cptr;
99 struct pvr2_sysfs *sfp;
100 const char *name;
101 enum pvr2_ctl_type tp;
102
103 sfp = (struct pvr2_sysfs *)class_dev->class_data;
104 if (!sfp) return -EINVAL;
105 cptr = pvr2_hdw_get_ctrl_by_index(sfp->channel.hdw,id);
106 if (!cptr) return -EINVAL;
107
108 tp = pvr2_ctrl_get_type(cptr);
109 switch (tp) {
110 case pvr2_ctl_int: name = "integer"; break;
111 case pvr2_ctl_enum: name = "enum"; break;
112 case pvr2_ctl_bitmask: name = "bitmask"; break;
113 case pvr2_ctl_bool: name = "boolean"; break;
114 default: name = "?"; break;
115 }
116 pvr2_sysfs_trace("pvr2_sysfs(%p) show_type(cid=%d) is %s",sfp,id,name);
117
118 if (!name) return -EINVAL;
119
120 return scnprintf(buf,PAGE_SIZE,"%s\n",name);
121}
122
123static ssize_t show_min(int id,struct class_device *class_dev,char *buf)
124{
125 struct pvr2_ctrl *cptr;
126 struct pvr2_sysfs *sfp;
127 long val;
128
129 sfp = (struct pvr2_sysfs *)class_dev->class_data;
130 if (!sfp) return -EINVAL;
131 cptr = pvr2_hdw_get_ctrl_by_index(sfp->channel.hdw,id);
132 if (!cptr) return -EINVAL;
133 val = pvr2_ctrl_get_min(cptr);
134
135 pvr2_sysfs_trace("pvr2_sysfs(%p) show_min(cid=%d) is %ld",sfp,id,val);
136
137 return scnprintf(buf,PAGE_SIZE,"%ld\n",val);
138}
139
140static ssize_t show_max(int id,struct class_device *class_dev,char *buf)
141{
142 struct pvr2_ctrl *cptr;
143 struct pvr2_sysfs *sfp;
144 long val;
145
146 sfp = (struct pvr2_sysfs *)class_dev->class_data;
147 if (!sfp) return -EINVAL;
148 cptr = pvr2_hdw_get_ctrl_by_index(sfp->channel.hdw,id);
149 if (!cptr) return -EINVAL;
150 val = pvr2_ctrl_get_max(cptr);
151
152 pvr2_sysfs_trace("pvr2_sysfs(%p) show_max(cid=%d) is %ld",sfp,id,val);
153
154 return scnprintf(buf,PAGE_SIZE,"%ld\n",val);
155}
156
157static ssize_t show_val_norm(int id,struct class_device *class_dev,char *buf)
158{
159 struct pvr2_ctrl *cptr;
160 struct pvr2_sysfs *sfp;
161 int val,ret;
162 unsigned int cnt = 0;
163
164 sfp = (struct pvr2_sysfs *)class_dev->class_data;
165 if (!sfp) return -EINVAL;
166 cptr = pvr2_hdw_get_ctrl_by_index(sfp->channel.hdw,id);
167 if (!cptr) return -EINVAL;
168
169 ret = pvr2_ctrl_get_value(cptr,&val);
170 if (ret < 0) return ret;
171
172 ret = pvr2_ctrl_value_to_sym(cptr,~0,val,
173 buf,PAGE_SIZE-1,&cnt);
174
175 pvr2_sysfs_trace("pvr2_sysfs(%p) show_val_norm(cid=%d) is %.*s (%d)",
176 sfp,id,cnt,buf,val);
177 buf[cnt] = '\n';
178 return cnt+1;
179}
180
181static ssize_t show_val_custom(int id,struct class_device *class_dev,char *buf)
182{
183 struct pvr2_ctrl *cptr;
184 struct pvr2_sysfs *sfp;
185 int val,ret;
186 unsigned int cnt = 0;
187
188 sfp = (struct pvr2_sysfs *)class_dev->class_data;
189 if (!sfp) return -EINVAL;
190 cptr = pvr2_hdw_get_ctrl_by_index(sfp->channel.hdw,id);
191 if (!cptr) return -EINVAL;
192
193 ret = pvr2_ctrl_get_value(cptr,&val);
194 if (ret < 0) return ret;
195
196 ret = pvr2_ctrl_custom_value_to_sym(cptr,~0,val,
197 buf,PAGE_SIZE-1,&cnt);
198
199 pvr2_sysfs_trace("pvr2_sysfs(%p) show_val_custom(cid=%d) is %.*s (%d)",
200 sfp,id,cnt,buf,val);
201 buf[cnt] = '\n';
202 return cnt+1;
203}
204
205static ssize_t show_enum(int id,struct class_device *class_dev,char *buf)
206{
207 struct pvr2_ctrl *cptr;
208 struct pvr2_sysfs *sfp;
209 long val;
210 unsigned int bcnt,ccnt,ecnt;
211
212 sfp = (struct pvr2_sysfs *)class_dev->class_data;
213 if (!sfp) return -EINVAL;
214 cptr = pvr2_hdw_get_ctrl_by_index(sfp->channel.hdw,id);
215 if (!cptr) return -EINVAL;
216 ecnt = pvr2_ctrl_get_cnt(cptr);
217 bcnt = 0;
218 for (val = 0; val < ecnt; val++) {
219 pvr2_ctrl_get_valname(cptr,val,buf+bcnt,PAGE_SIZE-bcnt,&ccnt);
220 if (!ccnt) continue;
221 bcnt += ccnt;
222 if (bcnt >= PAGE_SIZE) break;
223 buf[bcnt] = '\n';
224 bcnt++;
225 }
226 pvr2_sysfs_trace("pvr2_sysfs(%p) show_enum(cid=%d)",sfp,id);
227 return bcnt;
228}
229
230static ssize_t show_bits(int id,struct class_device *class_dev,char *buf)
231{
232 struct pvr2_ctrl *cptr;
233 struct pvr2_sysfs *sfp;
234 int valid_bits,msk;
235 unsigned int bcnt,ccnt;
236
237 sfp = (struct pvr2_sysfs *)class_dev->class_data;
238 if (!sfp) return -EINVAL;
239 cptr = pvr2_hdw_get_ctrl_by_index(sfp->channel.hdw,id);
240 if (!cptr) return -EINVAL;
241 valid_bits = pvr2_ctrl_get_mask(cptr);
242 bcnt = 0;
243 for (msk = 1; valid_bits; msk <<= 1) {
244 if (!(msk & valid_bits)) continue;
245 valid_bits &= ~msk;
246 pvr2_ctrl_get_valname(cptr,msk,buf+bcnt,PAGE_SIZE-bcnt,&ccnt);
247 bcnt += ccnt;
248 if (bcnt >= PAGE_SIZE) break;
249 buf[bcnt] = '\n';
250 bcnt++;
251 }
252 pvr2_sysfs_trace("pvr2_sysfs(%p) show_bits(cid=%d)",sfp,id);
253 return bcnt;
254}
255
256static int store_val_any(int id,int customfl,struct pvr2_sysfs *sfp,
257 const char *buf,unsigned int count)
258{
259 struct pvr2_ctrl *cptr;
260 int ret;
261 int mask,val;
262
263 cptr = pvr2_hdw_get_ctrl_by_index(sfp->channel.hdw,id);
264 if (customfl) {
265 ret = pvr2_ctrl_custom_sym_to_value(cptr,buf,count,&mask,&val);
266 } else {
267 ret = pvr2_ctrl_sym_to_value(cptr,buf,count,&mask,&val);
268 }
269 if (ret < 0) return ret;
270 ret = pvr2_ctrl_set_mask_value(cptr,mask,val);
271 pvr2_hdw_commit_ctl(sfp->channel.hdw);
272 return ret;
273}
274
275static ssize_t store_val_norm(int id,struct class_device *class_dev,
276 const char *buf,size_t count)
277{
278 struct pvr2_sysfs *sfp;
279 int ret;
280 sfp = (struct pvr2_sysfs *)class_dev->class_data;
281 ret = store_val_any(id,0,sfp,buf,count);
282 if (!ret) ret = count;
283 return ret;
284}
285
286static ssize_t store_val_custom(int id,struct class_device *class_dev,
287 const char *buf,size_t count)
288{
289 struct pvr2_sysfs *sfp;
290 int ret;
291 sfp = (struct pvr2_sysfs *)class_dev->class_data;
292 ret = store_val_any(id,1,sfp,buf,count);
293 if (!ret) ret = count;
294 return ret;
295}
296
297/*
298 Mike Isely <isely@pobox.com> 30-April-2005
299
300 This next batch of horrible preprocessor hackery is needed because the
301 kernel's class_device_attribute mechanism fails to pass the actual
302 attribute through to the show / store functions, which means we have no
303 way to package up any attribute-specific parameters, like for example the
304 control id. So we work around this brain-damage by encoding the control
305 id into the show / store functions themselves and pick the function based
306 on the control id we're setting up. These macros try to ease the pain.
307 Yuck.
308*/
309
310#define CREATE_SHOW_INSTANCE(sf_name,ctl_id) \
311static ssize_t sf_name##_##ctl_id(struct class_device *class_dev,char *buf) \
312{ return sf_name(ctl_id,class_dev,buf); }
313
314#define CREATE_STORE_INSTANCE(sf_name,ctl_id) \
315static ssize_t sf_name##_##ctl_id(struct class_device *class_dev,const char *buf,size_t count) \
316{ return sf_name(ctl_id,class_dev,buf,count); }
317
318#define CREATE_BATCH(ctl_id) \
319CREATE_SHOW_INSTANCE(show_name,ctl_id) \
320CREATE_SHOW_INSTANCE(show_type,ctl_id) \
321CREATE_SHOW_INSTANCE(show_min,ctl_id) \
322CREATE_SHOW_INSTANCE(show_max,ctl_id) \
323CREATE_SHOW_INSTANCE(show_val_norm,ctl_id) \
324CREATE_SHOW_INSTANCE(show_val_custom,ctl_id) \
325CREATE_SHOW_INSTANCE(show_enum,ctl_id) \
326CREATE_SHOW_INSTANCE(show_bits,ctl_id) \
327CREATE_STORE_INSTANCE(store_val_norm,ctl_id) \
328CREATE_STORE_INSTANCE(store_val_custom,ctl_id) \
329
330CREATE_BATCH(0)
331CREATE_BATCH(1)
332CREATE_BATCH(2)
333CREATE_BATCH(3)
334CREATE_BATCH(4)
335CREATE_BATCH(5)
336CREATE_BATCH(6)
337CREATE_BATCH(7)
338CREATE_BATCH(8)
339CREATE_BATCH(9)
340CREATE_BATCH(10)
341CREATE_BATCH(11)
342CREATE_BATCH(12)
343CREATE_BATCH(13)
344CREATE_BATCH(14)
345CREATE_BATCH(15)
346CREATE_BATCH(16)
347CREATE_BATCH(17)
348CREATE_BATCH(18)
349CREATE_BATCH(19)
350CREATE_BATCH(20)
351CREATE_BATCH(21)
352CREATE_BATCH(22)
353CREATE_BATCH(23)
354CREATE_BATCH(24)
355CREATE_BATCH(25)
356CREATE_BATCH(26)
357CREATE_BATCH(27)
358CREATE_BATCH(28)
359CREATE_BATCH(29)
360CREATE_BATCH(30)
361CREATE_BATCH(31)
362CREATE_BATCH(32)
363CREATE_BATCH(33)
364CREATE_BATCH(34)
365CREATE_BATCH(35)
366CREATE_BATCH(36)
367CREATE_BATCH(37)
368CREATE_BATCH(38)
369CREATE_BATCH(39)
370CREATE_BATCH(40)
371CREATE_BATCH(41)
372CREATE_BATCH(42)
373CREATE_BATCH(43)
374CREATE_BATCH(44)
375CREATE_BATCH(45)
376CREATE_BATCH(46)
377CREATE_BATCH(47)
378CREATE_BATCH(48)
379CREATE_BATCH(49)
380CREATE_BATCH(50)
381CREATE_BATCH(51)
382CREATE_BATCH(52)
383CREATE_BATCH(53)
384CREATE_BATCH(54)
385CREATE_BATCH(55)
386CREATE_BATCH(56)
387CREATE_BATCH(57)
388CREATE_BATCH(58)
389CREATE_BATCH(59)
390
391struct pvr2_sysfs_func_set {
392 ssize_t (*show_name)(struct class_device *,char *);
393 ssize_t (*show_type)(struct class_device *,char *);
394 ssize_t (*show_min)(struct class_device *,char *);
395 ssize_t (*show_max)(struct class_device *,char *);
396 ssize_t (*show_enum)(struct class_device *,char *);
397 ssize_t (*show_bits)(struct class_device *,char *);
398 ssize_t (*show_val_norm)(struct class_device *,char *);
399 ssize_t (*store_val_norm)(struct class_device *,
400 const char *,size_t);
401 ssize_t (*show_val_custom)(struct class_device *,char *);
402 ssize_t (*store_val_custom)(struct class_device *,
403 const char *,size_t);
404};
405
406#define INIT_BATCH(ctl_id) \
407[ctl_id] = { \
408 .show_name = show_name_##ctl_id, \
409 .show_type = show_type_##ctl_id, \
410 .show_min = show_min_##ctl_id, \
411 .show_max = show_max_##ctl_id, \
412 .show_enum = show_enum_##ctl_id, \
413 .show_bits = show_bits_##ctl_id, \
414 .show_val_norm = show_val_norm_##ctl_id, \
415 .store_val_norm = store_val_norm_##ctl_id, \
416 .show_val_custom = show_val_custom_##ctl_id, \
417 .store_val_custom = store_val_custom_##ctl_id, \
418} \
419
420static struct pvr2_sysfs_func_set funcs[] = {
421 INIT_BATCH(0),
422 INIT_BATCH(1),
423 INIT_BATCH(2),
424 INIT_BATCH(3),
425 INIT_BATCH(4),
426 INIT_BATCH(5),
427 INIT_BATCH(6),
428 INIT_BATCH(7),
429 INIT_BATCH(8),
430 INIT_BATCH(9),
431 INIT_BATCH(10),
432 INIT_BATCH(11),
433 INIT_BATCH(12),
434 INIT_BATCH(13),
435 INIT_BATCH(14),
436 INIT_BATCH(15),
437 INIT_BATCH(16),
438 INIT_BATCH(17),
439 INIT_BATCH(18),
440 INIT_BATCH(19),
441 INIT_BATCH(20),
442 INIT_BATCH(21),
443 INIT_BATCH(22),
444 INIT_BATCH(23),
445 INIT_BATCH(24),
446 INIT_BATCH(25),
447 INIT_BATCH(26),
448 INIT_BATCH(27),
449 INIT_BATCH(28),
450 INIT_BATCH(29),
451 INIT_BATCH(30),
452 INIT_BATCH(31),
453 INIT_BATCH(32),
454 INIT_BATCH(33),
455 INIT_BATCH(34),
456 INIT_BATCH(35),
457 INIT_BATCH(36),
458 INIT_BATCH(37),
459 INIT_BATCH(38),
460 INIT_BATCH(39),
461 INIT_BATCH(40),
462 INIT_BATCH(41),
463 INIT_BATCH(42),
464 INIT_BATCH(43),
465 INIT_BATCH(44),
466 INIT_BATCH(45),
467 INIT_BATCH(46),
468 INIT_BATCH(47),
469 INIT_BATCH(48),
470 INIT_BATCH(49),
471 INIT_BATCH(50),
472 INIT_BATCH(51),
473 INIT_BATCH(52),
474 INIT_BATCH(53),
475 INIT_BATCH(54),
476 INIT_BATCH(55),
477 INIT_BATCH(56),
478 INIT_BATCH(57),
479 INIT_BATCH(58),
480 INIT_BATCH(59),
481};
482
483
484static void pvr2_sysfs_add_control(struct pvr2_sysfs *sfp,int ctl_id)
485{
486 struct pvr2_sysfs_ctl_item *cip;
487 struct pvr2_sysfs_func_set *fp;
488 struct pvr2_ctrl *cptr;
489 unsigned int cnt,acnt;
490
491 if ((ctl_id < 0) || (ctl_id >= (sizeof(funcs)/sizeof(funcs[0])))) {
492 return;
493 }
494
495 fp = funcs + ctl_id;
496 cptr = pvr2_hdw_get_ctrl_by_index(sfp->channel.hdw,ctl_id);
497 if (!cptr) return;
498
499 cip = kmalloc(sizeof(*cip),GFP_KERNEL);
500 if (!cip) return;
501 memset(cip,0,sizeof(*cip));
502 pvr2_sysfs_trace("Creating pvr2_sysfs_ctl_item id=%p",cip);
503
504 cip->cptr = cptr;
505
506 cip->chptr = sfp;
507 cip->item_next = 0;
508 if (sfp->item_last) {
509 sfp->item_last->item_next = cip;
510 } else {
511 sfp->item_first = cip;
512 }
513 sfp->item_last = cip;
514
515 cip->attr_name.attr.owner = THIS_MODULE;
516 cip->attr_name.attr.name = "name";
517 cip->attr_name.attr.mode = S_IRUGO;
518 cip->attr_name.show = fp->show_name;
519
520 cip->attr_type.attr.owner = THIS_MODULE;
521 cip->attr_type.attr.name = "type";
522 cip->attr_type.attr.mode = S_IRUGO;
523 cip->attr_type.show = fp->show_type;
524
525 cip->attr_min.attr.owner = THIS_MODULE;
526 cip->attr_min.attr.name = "min_val";
527 cip->attr_min.attr.mode = S_IRUGO;
528 cip->attr_min.show = fp->show_min;
529
530 cip->attr_max.attr.owner = THIS_MODULE;
531 cip->attr_max.attr.name = "max_val";
532 cip->attr_max.attr.mode = S_IRUGO;
533 cip->attr_max.show = fp->show_max;
534
535 cip->attr_val.attr.owner = THIS_MODULE;
536 cip->attr_val.attr.name = "cur_val";
537 cip->attr_val.attr.mode = S_IRUGO;
538
539 cip->attr_custom.attr.owner = THIS_MODULE;
540 cip->attr_custom.attr.name = "custom_val";
541 cip->attr_custom.attr.mode = S_IRUGO;
542
543 cip->attr_enum.attr.owner = THIS_MODULE;
544 cip->attr_enum.attr.name = "enum_val";
545 cip->attr_enum.attr.mode = S_IRUGO;
546 cip->attr_enum.show = fp->show_enum;
547
548 cip->attr_bits.attr.owner = THIS_MODULE;
549 cip->attr_bits.attr.name = "bit_val";
550 cip->attr_bits.attr.mode = S_IRUGO;
551 cip->attr_bits.show = fp->show_bits;
552
553 if (pvr2_ctrl_is_writable(cptr)) {
554 cip->attr_val.attr.mode |= S_IWUSR|S_IWGRP;
555 cip->attr_custom.attr.mode |= S_IWUSR|S_IWGRP;
556 }
557
558 acnt = 0;
559 cip->attr_gen[acnt++] = &cip->attr_name.attr;
560 cip->attr_gen[acnt++] = &cip->attr_type.attr;
561 cip->attr_gen[acnt++] = &cip->attr_val.attr;
562 cip->attr_val.show = fp->show_val_norm;
563 cip->attr_val.store = fp->store_val_norm;
564 if (pvr2_ctrl_has_custom_symbols(cptr)) {
565 cip->attr_gen[acnt++] = &cip->attr_custom.attr;
566 cip->attr_custom.show = fp->show_val_custom;
567 cip->attr_custom.store = fp->store_val_custom;
568 }
569 switch (pvr2_ctrl_get_type(cptr)) {
570 case pvr2_ctl_enum:
571 // Control is an enumeration
572 cip->attr_gen[acnt++] = &cip->attr_enum.attr;
573 break;
574 case pvr2_ctl_int:
575 // Control is an integer
576 cip->attr_gen[acnt++] = &cip->attr_min.attr;
577 cip->attr_gen[acnt++] = &cip->attr_max.attr;
578 break;
579 case pvr2_ctl_bitmask:
580 // Control is an bitmask
581 cip->attr_gen[acnt++] = &cip->attr_bits.attr;
582 break;
583 default: break;
584 }
585
586 cnt = scnprintf(cip->name,sizeof(cip->name)-1,"ctl_%s",
587 pvr2_ctrl_get_name(cptr));
588 cip->name[cnt] = 0;
589 cip->grp.name = cip->name;
590 cip->grp.attrs = cip->attr_gen;
591
592 sysfs_create_group(&sfp->class_dev->kobj,&cip->grp);
593}
594
595#ifdef CONFIG_VIDEO_PVRUSB2_DEBUGIFC
596static ssize_t debuginfo_show(struct class_device *,char *);
597static ssize_t debugcmd_show(struct class_device *,char *);
598static ssize_t debugcmd_store(struct class_device *,const char *,size_t count);
599
600static void pvr2_sysfs_add_debugifc(struct pvr2_sysfs *sfp)
601{
602 struct pvr2_sysfs_debugifc *dip;
603 dip = kmalloc(sizeof(*dip),GFP_KERNEL);
604 if (!dip) return;
605 memset(dip,0,sizeof(*dip));
606 dip->attr_debugcmd.attr.owner = THIS_MODULE;
607 dip->attr_debugcmd.attr.name = "debugcmd";
608 dip->attr_debugcmd.attr.mode = S_IRUGO|S_IWUSR|S_IWGRP;
609 dip->attr_debugcmd.show = debugcmd_show;
610 dip->attr_debugcmd.store = debugcmd_store;
611 dip->attr_debuginfo.attr.owner = THIS_MODULE;
612 dip->attr_debuginfo.attr.name = "debuginfo";
613 dip->attr_debuginfo.attr.mode = S_IRUGO;
614 dip->attr_debuginfo.show = debuginfo_show;
615 sfp->debugifc = dip;
616 class_device_create_file(sfp->class_dev,&dip->attr_debugcmd);
617 class_device_create_file(sfp->class_dev,&dip->attr_debuginfo);
618}
619
620
621static void pvr2_sysfs_tear_down_debugifc(struct pvr2_sysfs *sfp)
622{
623 if (!sfp->debugifc) return;
624 class_device_remove_file(sfp->class_dev,
625 &sfp->debugifc->attr_debuginfo);
626 class_device_remove_file(sfp->class_dev,&sfp->debugifc->attr_debugcmd);
627 kfree(sfp->debugifc);
628 sfp->debugifc = 0;
629}
630#endif /* CONFIG_VIDEO_PVRUSB2_DEBUGIFC */
631
632
633static void pvr2_sysfs_add_controls(struct pvr2_sysfs *sfp)
634{
635 unsigned int idx,cnt;
636 cnt = pvr2_hdw_get_ctrl_count(sfp->channel.hdw);
637 for (idx = 0; idx < cnt; idx++) {
638 pvr2_sysfs_add_control(sfp,idx);
639 }
640}
641
642
643static void pvr2_sysfs_tear_down_controls(struct pvr2_sysfs *sfp)
644{
645 struct pvr2_sysfs_ctl_item *cip1,*cip2;
646 for (cip1 = sfp->item_first; cip1; cip1 = cip2) {
647 cip2 = cip1->item_next;
648 sysfs_remove_group(&sfp->class_dev->kobj,&cip1->grp);
649 pvr2_sysfs_trace("Destroying pvr2_sysfs_ctl_item id=%p",cip1);
650 kfree(cip1);
651 }
652}
653
654
655static void pvr2_sysfs_class_release(struct class *class)
656{
657 struct pvr2_sysfs_class *clp;
658 clp = container_of(class,struct pvr2_sysfs_class,class);
659 pvr2_sysfs_trace("Destroying pvr2_sysfs_class id=%p",clp);
660 kfree(clp);
661}
662
663
664static void pvr2_sysfs_release(struct class_device *class_dev)
665{
666 pvr2_sysfs_trace("Releasing class_dev id=%p",class_dev);
667 kfree(class_dev);
668}
669
670
671static void class_dev_destroy(struct pvr2_sysfs *sfp)
672{
673 if (!sfp->class_dev) return;
674#ifdef CONFIG_VIDEO_PVRUSB2_DEBUGIFC
675 pvr2_sysfs_tear_down_debugifc(sfp);
676#endif /* CONFIG_VIDEO_PVRUSB2_DEBUGIFC */
677 pvr2_sysfs_tear_down_controls(sfp);
678 class_device_remove_file(sfp->class_dev,&sfp->attr_v4l_minor_number);
679 class_device_remove_file(sfp->class_dev,&sfp->attr_unit_number);
680 pvr2_sysfs_trace("Destroying class_dev id=%p",sfp->class_dev);
681 sfp->class_dev->class_data = 0;
682 class_device_unregister(sfp->class_dev);
683 sfp->class_dev = 0;
684}
685
686
687static ssize_t v4l_minor_number_show(struct class_device *class_dev,char *buf)
688{
689 struct pvr2_sysfs *sfp;
690 sfp = (struct pvr2_sysfs *)class_dev->class_data;
691 if (!sfp) return -EINVAL;
692 return scnprintf(buf,PAGE_SIZE,"%d\n",
693 pvr2_hdw_v4l_get_minor_number(sfp->channel.hdw));
694}
695
696
697static ssize_t unit_number_show(struct class_device *class_dev,char *buf)
698{
699 struct pvr2_sysfs *sfp;
700 sfp = (struct pvr2_sysfs *)class_dev->class_data;
701 if (!sfp) return -EINVAL;
702 return scnprintf(buf,PAGE_SIZE,"%d\n",
703 pvr2_hdw_get_unit_number(sfp->channel.hdw));
704}
705
706
707static void class_dev_create(struct pvr2_sysfs *sfp,
708 struct pvr2_sysfs_class *class_ptr)
709{
710 struct usb_device *usb_dev;
711 struct class_device *class_dev;
712 usb_dev = pvr2_hdw_get_dev(sfp->channel.hdw);
713 if (!usb_dev) return;
714 class_dev = kmalloc(sizeof(*class_dev),GFP_KERNEL);
715 if (!class_dev) return;
716 memset(class_dev,0,sizeof(*class_dev));
717
718 pvr2_sysfs_trace("Creating class_dev id=%p",class_dev);
719
720 class_dev->class = &class_ptr->class;
721 if (pvr2_hdw_get_sn(sfp->channel.hdw)) {
722 snprintf(class_dev->class_id,BUS_ID_SIZE,"sn-%lu",
723 pvr2_hdw_get_sn(sfp->channel.hdw));
724 } else if (pvr2_hdw_get_unit_number(sfp->channel.hdw) >= 0) {
725 snprintf(class_dev->class_id,BUS_ID_SIZE,"unit-%c",
726 pvr2_hdw_get_unit_number(sfp->channel.hdw) + 'a');
727 } else {
728 kfree(class_dev);
729 return;
730 }
731
732 class_dev->dev = &usb_dev->dev;
733
734 sfp->class_dev = class_dev;
735 class_dev->class_data = sfp;
736 class_device_register(class_dev);
737
738 sfp->attr_v4l_minor_number.attr.owner = THIS_MODULE;
739 sfp->attr_v4l_minor_number.attr.name = "v4l_minor_number";
740 sfp->attr_v4l_minor_number.attr.mode = S_IRUGO;
741 sfp->attr_v4l_minor_number.show = v4l_minor_number_show;
742 sfp->attr_v4l_minor_number.store = 0;
743 class_device_create_file(sfp->class_dev,&sfp->attr_v4l_minor_number);
744 sfp->attr_unit_number.attr.owner = THIS_MODULE;
745 sfp->attr_unit_number.attr.name = "unit_number";
746 sfp->attr_unit_number.attr.mode = S_IRUGO;
747 sfp->attr_unit_number.show = unit_number_show;
748 sfp->attr_unit_number.store = 0;
749 class_device_create_file(sfp->class_dev,&sfp->attr_unit_number);
750
751 pvr2_sysfs_add_controls(sfp);
752#ifdef CONFIG_VIDEO_PVRUSB2_DEBUGIFC
753 pvr2_sysfs_add_debugifc(sfp);
754#endif /* CONFIG_VIDEO_PVRUSB2_DEBUGIFC */
755}
756
757
758static void pvr2_sysfs_internal_check(struct pvr2_channel *chp)
759{
760 struct pvr2_sysfs *sfp;
761 sfp = container_of(chp,struct pvr2_sysfs,channel);
762 if (!sfp->channel.mc_head->disconnect_flag) return;
763 pvr2_trace(PVR2_TRACE_STRUCT,"Destroying pvr2_sysfs id=%p",sfp);
764 class_dev_destroy(sfp);
765 pvr2_channel_done(&sfp->channel);
766 kfree(sfp);
767}
768
769
770struct pvr2_sysfs *pvr2_sysfs_create(struct pvr2_context *mp,
771 struct pvr2_sysfs_class *class_ptr)
772{
773 struct pvr2_sysfs *sfp;
774 sfp = kmalloc(sizeof(*sfp),GFP_KERNEL);
775 if (!sfp) return sfp;
776 memset(sfp,0,sizeof(*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
786static int pvr2_sysfs_hotplug(struct class_device *cd,char **envp,
787 int numenvp,char *buf,int size)
788{
789 /* Even though we don't do anything here, we still need this function
790 because sysfs will still try to call it. */
791 return 0;
792}
793
794struct pvr2_sysfs_class *pvr2_sysfs_class_create(void)
795{
796 struct pvr2_sysfs_class *clp;
797 clp = kmalloc(sizeof(*clp),GFP_KERNEL);
798 if (!clp) return clp;
799 memset(clp,0,sizeof(*clp));
800 pvr2_sysfs_trace("Creating pvr2_sysfs_class id=%p",clp);
801 clp->class.name = "pvrusb2";
802 clp->class.class_release = pvr2_sysfs_class_release;
803 clp->class.release = pvr2_sysfs_release;
804 clp->class.uevent = pvr2_sysfs_hotplug;
805 if (class_register(&clp->class)) {
806 pvr2_sysfs_trace(
807 "Registration failed for pvr2_sysfs_class id=%p",clp);
808 kfree(clp);
809 clp = 0;
810 }
811 return clp;
812}
813
814
815void pvr2_sysfs_class_destroy(struct pvr2_sysfs_class *clp)
816{
817 class_unregister(&clp->class);
818}
819
820
821#ifdef CONFIG_VIDEO_PVRUSB2_DEBUGIFC
822static ssize_t debuginfo_show(struct class_device *class_dev,char *buf)
823{
824 struct pvr2_sysfs *sfp;
825 sfp = (struct pvr2_sysfs *)class_dev->class_data;
826 if (!sfp) return -EINVAL;
827 pvr2_hdw_trigger_module_log(sfp->channel.hdw);
828 return pvr2_debugifc_print_info(sfp->channel.hdw,buf,PAGE_SIZE);
829}
830
831
832static ssize_t debugcmd_show(struct class_device *class_dev,char *buf)
833{
834 struct pvr2_sysfs *sfp;
835 sfp = (struct pvr2_sysfs *)class_dev->class_data;
836 if (!sfp) return -EINVAL;
837 return pvr2_debugifc_print_status(sfp->channel.hdw,buf,PAGE_SIZE);
838}
839
840
841static ssize_t debugcmd_store(struct class_device *class_dev,
842 const char *buf,size_t count)
843{
844 struct pvr2_sysfs *sfp;
845 int ret;
846
847 sfp = (struct pvr2_sysfs *)class_dev->class_data;
848 if (!sfp) return -EINVAL;
849
850 ret = pvr2_debugifc_docmd(sfp->channel.hdw,buf,count);
851 if (ret < 0) return ret;
852 return count;
853}
854#endif /* CONFIG_VIDEO_PVRUSB2_DEBUGIFC */
855
856
857/*
858 Stuff for Emacs to see, in order to encourage consistent editing style:
859 *** Local Variables: ***
860 *** mode: c ***
861 *** fill-column: 75 ***
862 *** tab-width: 8 ***
863 *** c-basic-offset: 8 ***
864 *** End: ***
865 */
generated by cgit v1.2.2 (git 2.25.0) at 2025-01-03 07:51:27 -0500