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Driver core: change add_uevent_var to use a struct
[GitHub/mt8127/android_kernel_alcatel_ttab.git] / drivers / media / video / pvrusb2 / pvrusb2-sysfs.c
CommitLineData
d855497e
MI		 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
d855497e
MI		 22#include <linux/string.h>
23#include <linux/slab.h>
24#include <asm/semaphore.h>
25#include "pvrusb2-sysfs.h"
26#include "pvrusb2-hdw.h"
27#include "pvrusb2-debug.h"
28#ifdef CONFIG_VIDEO_PVRUSB2_DEBUGIFC
29#include "pvrusb2-debugifc.h"
30#endif /* CONFIG_VIDEO_PVRUSB2_DEBUGIFC */
31
32#define pvr2_sysfs_trace(...) pvr2_trace(PVR2_TRACE_SYSFS,__VA_ARGS__)
33
34struct pvr2_sysfs {
35 struct pvr2_channel channel;
54bd5b66 36 struct device *class_dev;
d855497e
MI		 37#ifdef CONFIG_VIDEO_PVRUSB2_DEBUGIFC
38 struct pvr2_sysfs_debugifc *debugifc;
39#endif /* CONFIG_VIDEO_PVRUSB2_DEBUGIFC */
40 struct pvr2_sysfs_ctl_item *item_first;
41 struct pvr2_sysfs_ctl_item *item_last;
54bd5b66
KS		 42 struct device_attribute attr_v4l_minor_number;
43 struct device_attribute attr_v4l_radio_minor_number;
44 struct device_attribute attr_unit_number;
45 struct device_attribute attr_bus_info;
08d41808 46 int v4l_minor_number_created_ok;
2fdf3d9c 47 int v4l_radio_minor_number_created_ok;
08d41808 48 int unit_number_created_ok;
31a18547 49 int bus_info_created_ok;
d855497e
MI		 50};
51
52#ifdef CONFIG_VIDEO_PVRUSB2_DEBUGIFC
53struct pvr2_sysfs_debugifc {
54bd5b66
KS		 54 struct device_attribute attr_debugcmd;
55 struct device_attribute attr_debuginfo;
08d41808
MI		 56 int debugcmd_created_ok;
57 int debuginfo_created_ok;
d855497e
MI		 58};
59#endif /* CONFIG_VIDEO_PVRUSB2_DEBUGIFC */
60
61struct pvr2_sysfs_ctl_item {
54bd5b66
KS		 62 struct device_attribute attr_name;
63 struct device_attribute attr_type;
64 struct device_attribute attr_min;
65 struct device_attribute attr_max;
66 struct device_attribute attr_enum;
67 struct device_attribute attr_bits;
68 struct device_attribute attr_val;
69 struct device_attribute attr_custom;
d855497e
MI		 70 struct pvr2_ctrl *cptr;
71 struct pvr2_sysfs *chptr;
72 struct pvr2_sysfs_ctl_item *item_next;
33213963 73 struct attribute *attr_gen[7];
d855497e 74 struct attribute_group grp;
08d41808 75 int created_ok;
d855497e
MI		 76 char name[80];
77};
78
79struct pvr2_sysfs_class {
80 struct class class;
81};
82
54bd5b66 83static ssize_t show_name(int id,struct device *class_dev,char *buf)
d855497e
MI		 84{
85 struct pvr2_ctrl *cptr;
86 struct pvr2_sysfs *sfp;
87 const char *name;
88
54bd5b66 89 sfp = (struct pvr2_sysfs *)class_dev->driver_data;
d855497e
MI		 90 if (!sfp) return -EINVAL;
91 cptr = pvr2_hdw_get_ctrl_by_index(sfp->channel.hdw,id);
92 if (!cptr) return -EINVAL;
93
94 name = pvr2_ctrl_get_desc(cptr);
95 pvr2_sysfs_trace("pvr2_sysfs(%p) show_name(cid=%d) is %s",sfp,id,name);
96
97 if (!name) return -EINVAL;
98
99 return scnprintf(buf,PAGE_SIZE,"%s\n",name);
100}
101
54bd5b66 102static ssize_t show_type(int id,struct device *class_dev,char *buf)
33213963
MI		 103{
104 struct pvr2_ctrl *cptr;
105 struct pvr2_sysfs *sfp;
106 const char *name;
107 enum pvr2_ctl_type tp;
108
54bd5b66 109 sfp = (struct pvr2_sysfs *)class_dev->driver_data;
33213963
MI		 110 if (!sfp) return -EINVAL;
111 cptr = pvr2_hdw_get_ctrl_by_index(sfp->channel.hdw,id);
112 if (!cptr) return -EINVAL;
113
114 tp = pvr2_ctrl_get_type(cptr);
115 switch (tp) {
116 case pvr2_ctl_int: name = "integer"; break;
117 case pvr2_ctl_enum: name = "enum"; break;
118 case pvr2_ctl_bitmask: name = "bitmask"; break;
119 case pvr2_ctl_bool: name = "boolean"; break;
120 default: name = "?"; break;
121 }
122 pvr2_sysfs_trace("pvr2_sysfs(%p) show_type(cid=%d) is %s",sfp,id,name);
123
124 if (!name) return -EINVAL;
125
126 return scnprintf(buf,PAGE_SIZE,"%s\n",name);
127}
128
54bd5b66 129static ssize_t show_min(int id,struct device *class_dev,char *buf)
d855497e
MI		 130{
131 struct pvr2_ctrl *cptr;
132 struct pvr2_sysfs *sfp;
133 long val;
134
54bd5b66 135 sfp = (struct pvr2_sysfs *)class_dev->driver_data;
d855497e
MI		 136 if (!sfp) return -EINVAL;
137 cptr = pvr2_hdw_get_ctrl_by_index(sfp->channel.hdw,id);
138 if (!cptr) return -EINVAL;
139 val = pvr2_ctrl_get_min(cptr);
140
141 pvr2_sysfs_trace("pvr2_sysfs(%p) show_min(cid=%d) is %ld",sfp,id,val);
142
143 return scnprintf(buf,PAGE_SIZE,"%ld\n",val);
144}
145
54bd5b66 146static ssize_t show_max(int id,struct device *class_dev,char *buf)
d855497e
MI		 147{
148 struct pvr2_ctrl *cptr;
149 struct pvr2_sysfs *sfp;
150 long val;
151
54bd5b66 152 sfp = (struct pvr2_sysfs *)class_dev->driver_data;
d855497e
MI		 153 if (!sfp) return -EINVAL;
154 cptr = pvr2_hdw_get_ctrl_by_index(sfp->channel.hdw,id);
155 if (!cptr) return -EINVAL;
156 val = pvr2_ctrl_get_max(cptr);
157
158 pvr2_sysfs_trace("pvr2_sysfs(%p) show_max(cid=%d) is %ld",sfp,id,val);
159
160 return scnprintf(buf,PAGE_SIZE,"%ld\n",val);
161}
162
54bd5b66 163static ssize_t show_val_norm(int id,struct device *class_dev,char *buf)
d855497e
MI		 164{
165 struct pvr2_ctrl *cptr;
166 struct pvr2_sysfs *sfp;
167 int val,ret;
168 unsigned int cnt = 0;
169
54bd5b66 170 sfp = (struct pvr2_sysfs *)class_dev->driver_data;
d855497e
MI		 171 if (!sfp) return -EINVAL;
172 cptr = pvr2_hdw_get_ctrl_by_index(sfp->channel.hdw,id);
173 if (!cptr) return -EINVAL;
174
175 ret = pvr2_ctrl_get_value(cptr,&val);
176 if (ret < 0) return ret;
177
178 ret = pvr2_ctrl_value_to_sym(cptr,~0,val,
179 buf,PAGE_SIZE-1,&cnt);
180
181 pvr2_sysfs_trace("pvr2_sysfs(%p) show_val_norm(cid=%d) is %.*s (%d)",
182 sfp,id,cnt,buf,val);
183 buf[cnt] = '\n';
184 return cnt+1;
185}
186
54bd5b66 187static ssize_t show_val_custom(int id,struct device *class_dev,char *buf)
d855497e
MI		 188{
189 struct pvr2_ctrl *cptr;
190 struct pvr2_sysfs *sfp;
191 int val,ret;
192 unsigned int cnt = 0;
193
54bd5b66 194 sfp = (struct pvr2_sysfs *)class_dev->driver_data;
d855497e
MI		 195 if (!sfp) return -EINVAL;
196 cptr = pvr2_hdw_get_ctrl_by_index(sfp->channel.hdw,id);
197 if (!cptr) return -EINVAL;
198
199 ret = pvr2_ctrl_get_value(cptr,&val);
200 if (ret < 0) return ret;
201
202 ret = pvr2_ctrl_custom_value_to_sym(cptr,~0,val,
203 buf,PAGE_SIZE-1,&cnt);
204
205 pvr2_sysfs_trace("pvr2_sysfs(%p) show_val_custom(cid=%d) is %.*s (%d)",
206 sfp,id,cnt,buf,val);
207 buf[cnt] = '\n';
208 return cnt+1;
209}
210
54bd5b66 211static ssize_t show_enum(int id,struct device *class_dev,char *buf)
d855497e
MI		 212{
213 struct pvr2_ctrl *cptr;
214 struct pvr2_sysfs *sfp;
215 long val;
216 unsigned int bcnt,ccnt,ecnt;
217
54bd5b66 218 sfp = (struct pvr2_sysfs *)class_dev->driver_data;
d855497e
MI		 219 if (!sfp) return -EINVAL;
220 cptr = pvr2_hdw_get_ctrl_by_index(sfp->channel.hdw,id);
221 if (!cptr) return -EINVAL;
222 ecnt = pvr2_ctrl_get_cnt(cptr);
223 bcnt = 0;
224 for (val = 0; val < ecnt; val++) {
225 pvr2_ctrl_get_valname(cptr,val,buf+bcnt,PAGE_SIZE-bcnt,&ccnt);
45886771 226 if (!ccnt) continue;
d855497e
MI		 227 bcnt += ccnt;
228 if (bcnt >= PAGE_SIZE) break;
229 buf[bcnt] = '\n';
230 bcnt++;
231 }
232 pvr2_sysfs_trace("pvr2_sysfs(%p) show_enum(cid=%d)",sfp,id);
233 return bcnt;
234}
235
54bd5b66 236static ssize_t show_bits(int id,struct device *class_dev,char *buf)
d855497e
MI		 237{
238 struct pvr2_ctrl *cptr;
239 struct pvr2_sysfs *sfp;
240 int valid_bits,msk;
241 unsigned int bcnt,ccnt;
242
54bd5b66 243 sfp = (struct pvr2_sysfs *)class_dev->driver_data;
d855497e
MI		 244 if (!sfp) return -EINVAL;
245 cptr = pvr2_hdw_get_ctrl_by_index(sfp->channel.hdw,id);
246 if (!cptr) return -EINVAL;
247 valid_bits = pvr2_ctrl_get_mask(cptr);
248 bcnt = 0;
249 for (msk = 1; valid_bits; msk <<= 1) {
250 if (!(msk & valid_bits)) continue;
251 valid_bits &= ~msk;
252 pvr2_ctrl_get_valname(cptr,msk,buf+bcnt,PAGE_SIZE-bcnt,&ccnt);
253 bcnt += ccnt;
254 if (bcnt >= PAGE_SIZE) break;
255 buf[bcnt] = '\n';
256 bcnt++;
257 }
258 pvr2_sysfs_trace("pvr2_sysfs(%p) show_bits(cid=%d)",sfp,id);
259 return bcnt;
260}
261
262static int store_val_any(int id,int customfl,struct pvr2_sysfs *sfp,
263 const char *buf,unsigned int count)
264{
265 struct pvr2_ctrl *cptr;
266 int ret;
267 int mask,val;
268
269 cptr = pvr2_hdw_get_ctrl_by_index(sfp->channel.hdw,id);
270 if (customfl) {
271 ret = pvr2_ctrl_custom_sym_to_value(cptr,buf,count,&mask,&val);
272 } else {
273 ret = pvr2_ctrl_sym_to_value(cptr,buf,count,&mask,&val);
274 }
275 if (ret < 0) return ret;
276 ret = pvr2_ctrl_set_mask_value(cptr,mask,val);
277 pvr2_hdw_commit_ctl(sfp->channel.hdw);
278 return ret;
279}
280
54bd5b66 281static ssize_t store_val_norm(int id,struct device *class_dev,
d855497e
MI		 282 const char *buf,size_t count)
283{
284 struct pvr2_sysfs *sfp;
285 int ret;
54bd5b66 286 sfp = (struct pvr2_sysfs *)class_dev->driver_data;
d855497e
MI		 287 ret = store_val_any(id,0,sfp,buf,count);
288 if (!ret) ret = count;
289 return ret;
290}
291
54bd5b66 292static ssize_t store_val_custom(int id,struct device *class_dev,
d855497e
MI		 293 const char *buf,size_t count)
294{
295 struct pvr2_sysfs *sfp;
296 int ret;
54bd5b66 297 sfp = (struct pvr2_sysfs *)class_dev->driver_data;
d855497e
MI		 298 ret = store_val_any(id,1,sfp,buf,count);
299 if (!ret) ret = count;
300 return ret;
301}
302
303/*
304 Mike Isely <isely@pobox.com> 30-April-2005
305
306 This next batch of horrible preprocessor hackery is needed because the
54bd5b66 307 kernel's device_attribute mechanism fails to pass the actual
d855497e
MI		 308 attribute through to the show / store functions, which means we have no
309 way to package up any attribute-specific parameters, like for example the
310 control id. So we work around this brain-damage by encoding the control
311 id into the show / store functions themselves and pick the function based
312 on the control id we're setting up. These macros try to ease the pain.
313 Yuck.
314*/
315
316#define CREATE_SHOW_INSTANCE(sf_name,ctl_id) \
54bd5b66
KS		 317static ssize_t sf_name##_##ctl_id(struct device *class_dev, \
318struct device_attribute *attr, char *buf) \
d855497e
MI		 319{ return sf_name(ctl_id,class_dev,buf); }
320
321#define CREATE_STORE_INSTANCE(sf_name,ctl_id) \
54bd5b66
KS		 322static ssize_t sf_name##_##ctl_id(struct device *class_dev, \
323struct device_attribute *attr, const char *buf, size_t count) \
d855497e
MI		 324{ return sf_name(ctl_id,class_dev,buf,count); }
325
326#define CREATE_BATCH(ctl_id) \
327CREATE_SHOW_INSTANCE(show_name,ctl_id) \
33213963 328CREATE_SHOW_INSTANCE(show_type,ctl_id) \
d855497e
MI		 329CREATE_SHOW_INSTANCE(show_min,ctl_id) \
330CREATE_SHOW_INSTANCE(show_max,ctl_id) \
331CREATE_SHOW_INSTANCE(show_val_norm,ctl_id) \
332CREATE_SHOW_INSTANCE(show_val_custom,ctl_id) \
333CREATE_SHOW_INSTANCE(show_enum,ctl_id) \
334CREATE_SHOW_INSTANCE(show_bits,ctl_id) \
335CREATE_STORE_INSTANCE(store_val_norm,ctl_id) \
336CREATE_STORE_INSTANCE(store_val_custom,ctl_id) \
337
338CREATE_BATCH(0)
339CREATE_BATCH(1)
340CREATE_BATCH(2)
341CREATE_BATCH(3)
342CREATE_BATCH(4)
343CREATE_BATCH(5)
344CREATE_BATCH(6)
345CREATE_BATCH(7)
346CREATE_BATCH(8)
347CREATE_BATCH(9)
348CREATE_BATCH(10)
349CREATE_BATCH(11)
350CREATE_BATCH(12)
351CREATE_BATCH(13)
352CREATE_BATCH(14)
353CREATE_BATCH(15)
354CREATE_BATCH(16)
355CREATE_BATCH(17)
356CREATE_BATCH(18)
357CREATE_BATCH(19)
358CREATE_BATCH(20)
359CREATE_BATCH(21)
360CREATE_BATCH(22)
361CREATE_BATCH(23)
362CREATE_BATCH(24)
363CREATE_BATCH(25)
364CREATE_BATCH(26)
365CREATE_BATCH(27)
366CREATE_BATCH(28)
367CREATE_BATCH(29)
368CREATE_BATCH(30)
369CREATE_BATCH(31)
370CREATE_BATCH(32)
371CREATE_BATCH(33)
3948199e
MI		 372CREATE_BATCH(34)
373CREATE_BATCH(35)
374CREATE_BATCH(36)
375CREATE_BATCH(37)
376CREATE_BATCH(38)
377CREATE_BATCH(39)
378CREATE_BATCH(40)
379CREATE_BATCH(41)
380CREATE_BATCH(42)
381CREATE_BATCH(43)
382CREATE_BATCH(44)
383CREATE_BATCH(45)
384CREATE_BATCH(46)
385CREATE_BATCH(47)
386CREATE_BATCH(48)
387CREATE_BATCH(49)
388CREATE_BATCH(50)
389CREATE_BATCH(51)
390CREATE_BATCH(52)
391CREATE_BATCH(53)
392CREATE_BATCH(54)
393CREATE_BATCH(55)
394CREATE_BATCH(56)
395CREATE_BATCH(57)
396CREATE_BATCH(58)
397CREATE_BATCH(59)
d855497e
MI		 398
399struct pvr2_sysfs_func_set {
54bd5b66
KS		 400 ssize_t (*show_name)(struct device *,
401 struct device_attribute *attr, char *);
402 ssize_t (*show_type)(struct device *,
403 struct device_attribute *attr, char *);
404 ssize_t (*show_min)(struct device *,
405 struct device_attribute *attr, char *);
406 ssize_t (*show_max)(struct device *,
407 struct device_attribute *attr, char *);
408 ssize_t (*show_enum)(struct device *,
409 struct device_attribute *attr, char *);
410 ssize_t (*show_bits)(struct device *,
411 struct device_attribute *attr, char *);
412 ssize_t (*show_val_norm)(struct device *,
413 struct device_attribute *attr, char *);
414 ssize_t (*store_val_norm)(struct device *,
415 struct device_attribute *attr,
d855497e 416 const char *,size_t);
54bd5b66
KS		 417 ssize_t (*show_val_custom)(struct device *,
418 struct device_attribute *attr, char *);
419 ssize_t (*store_val_custom)(struct device *,
420 struct device_attribute *attr,
d855497e
MI		 421 const char *,size_t);
422};
423
424#define INIT_BATCH(ctl_id) \
425[ctl_id] = { \
426 .show_name = show_name_##ctl_id, \
33213963 427 .show_type = show_type_##ctl_id, \
d855497e
MI		 428 .show_min = show_min_##ctl_id, \
429 .show_max = show_max_##ctl_id, \
430 .show_enum = show_enum_##ctl_id, \
431 .show_bits = show_bits_##ctl_id, \
432 .show_val_norm = show_val_norm_##ctl_id, \
433 .store_val_norm = store_val_norm_##ctl_id, \
434 .show_val_custom = show_val_custom_##ctl_id, \
435 .store_val_custom = store_val_custom_##ctl_id, \
436} \
437
438static struct pvr2_sysfs_func_set funcs[] = {
439 INIT_BATCH(0),
440 INIT_BATCH(1),
441 INIT_BATCH(2),
442 INIT_BATCH(3),
443 INIT_BATCH(4),
444 INIT_BATCH(5),
445 INIT_BATCH(6),
446 INIT_BATCH(7),
447 INIT_BATCH(8),
448 INIT_BATCH(9),
449 INIT_BATCH(10),
450 INIT_BATCH(11),
451 INIT_BATCH(12),
452 INIT_BATCH(13),
453 INIT_BATCH(14),
454 INIT_BATCH(15),
455 INIT_BATCH(16),
456 INIT_BATCH(17),
457 INIT_BATCH(18),
458 INIT_BATCH(19),
459 INIT_BATCH(20),
460 INIT_BATCH(21),
461 INIT_BATCH(22),
462 INIT_BATCH(23),
463 INIT_BATCH(24),
464 INIT_BATCH(25),
465 INIT_BATCH(26),
466 INIT_BATCH(27),
467 INIT_BATCH(28),
468 INIT_BATCH(29),
469 INIT_BATCH(30),
470 INIT_BATCH(31),
471 INIT_BATCH(32),
472 INIT_BATCH(33),
3948199e
MI		 473 INIT_BATCH(34),
474 INIT_BATCH(35),
475 INIT_BATCH(36),
476 INIT_BATCH(37),
477 INIT_BATCH(38),
478 INIT_BATCH(39),
479 INIT_BATCH(40),
480 INIT_BATCH(41),
481 INIT_BATCH(42),
482 INIT_BATCH(43),
483 INIT_BATCH(44),
484 INIT_BATCH(45),
485 INIT_BATCH(46),
486 INIT_BATCH(47),
487 INIT_BATCH(48),
488 INIT_BATCH(49),
489 INIT_BATCH(50),
490 INIT_BATCH(51),
491 INIT_BATCH(52),
492 INIT_BATCH(53),
493 INIT_BATCH(54),
494 INIT_BATCH(55),
495 INIT_BATCH(56),
496 INIT_BATCH(57),
497 INIT_BATCH(58),
498 INIT_BATCH(59),
d855497e
MI		 499};
500
501
502static void pvr2_sysfs_add_control(struct pvr2_sysfs *sfp,int ctl_id)
503{
504 struct pvr2_sysfs_ctl_item *cip;
505 struct pvr2_sysfs_func_set *fp;
506 struct pvr2_ctrl *cptr;
507 unsigned int cnt,acnt;
08d41808 508 int ret;
d855497e 509
eca8ebfc 510 if ((ctl_id < 0) || (ctl_id >= ARRAY_SIZE(funcs))) {
d855497e
MI		 511 return;
512 }
513
514 fp = funcs + ctl_id;
515 cptr = pvr2_hdw_get_ctrl_by_index(sfp->channel.hdw,ctl_id);
516 if (!cptr) return;
517
ca545f7c 518 cip = kzalloc(sizeof(*cip),GFP_KERNEL);
d855497e 519 if (!cip) return;
d855497e
MI		 520 pvr2_sysfs_trace("Creating pvr2_sysfs_ctl_item id=%p",cip);
521
522 cip->cptr = cptr;
523
524 cip->chptr = sfp;
a0fd1cb1 525 cip->item_next = NULL;
d855497e
MI		 526 if (sfp->item_last) {
527 sfp->item_last->item_next = cip;
528 } else {
529 sfp->item_first = cip;
530 }
531 sfp->item_last = cip;
532
d855497e
MI		 533 cip->attr_name.attr.name = "name";
534 cip->attr_name.attr.mode = S_IRUGO;
535 cip->attr_name.show = fp->show_name;
536
33213963
MI		 537 cip->attr_type.attr.name = "type";
538 cip->attr_type.attr.mode = S_IRUGO;
539 cip->attr_type.show = fp->show_type;
540
d855497e
MI		 541 cip->attr_min.attr.name = "min_val";
542 cip->attr_min.attr.mode = S_IRUGO;
543 cip->attr_min.show = fp->show_min;
544
d855497e
MI		 545 cip->attr_max.attr.name = "max_val";
546 cip->attr_max.attr.mode = S_IRUGO;
547 cip->attr_max.show = fp->show_max;
548
d855497e
MI		 549 cip->attr_val.attr.name = "cur_val";
550 cip->attr_val.attr.mode = S_IRUGO;
551
d855497e
MI		 552 cip->attr_custom.attr.name = "custom_val";
553 cip->attr_custom.attr.mode = S_IRUGO;
554
d855497e
MI		 555 cip->attr_enum.attr.name = "enum_val";
556 cip->attr_enum.attr.mode = S_IRUGO;
557 cip->attr_enum.show = fp->show_enum;
558
d855497e
MI		 559 cip->attr_bits.attr.name = "bit_val";
560 cip->attr_bits.attr.mode = S_IRUGO;
561 cip->attr_bits.show = fp->show_bits;
562
563 if (pvr2_ctrl_is_writable(cptr)) {
564 cip->attr_val.attr.mode |= S_IWUSR|S_IWGRP;
565 cip->attr_custom.attr.mode |= S_IWUSR|S_IWGRP;
566 }
567
568 acnt = 0;
569 cip->attr_gen[acnt++] = &cip->attr_name.attr;
33213963 570 cip->attr_gen[acnt++] = &cip->attr_type.attr;
d855497e
MI		 571 cip->attr_gen[acnt++] = &cip->attr_val.attr;
572 cip->attr_val.show = fp->show_val_norm;
573 cip->attr_val.store = fp->store_val_norm;
574 if (pvr2_ctrl_has_custom_symbols(cptr)) {
575 cip->attr_gen[acnt++] = &cip->attr_custom.attr;
576 cip->attr_custom.show = fp->show_val_custom;
577 cip->attr_custom.store = fp->store_val_custom;
578 }
579 switch (pvr2_ctrl_get_type(cptr)) {
580 case pvr2_ctl_enum:
581 // Control is an enumeration
582 cip->attr_gen[acnt++] = &cip->attr_enum.attr;
583 break;
584 case pvr2_ctl_int:
585 // Control is an integer
586 cip->attr_gen[acnt++] = &cip->attr_min.attr;
587 cip->attr_gen[acnt++] = &cip->attr_max.attr;
588 break;
589 case pvr2_ctl_bitmask:
590 // Control is an bitmask
591 cip->attr_gen[acnt++] = &cip->attr_bits.attr;
592 break;
593 default: break;
594 }
595
596 cnt = scnprintf(cip->name,sizeof(cip->name)-1,"ctl_%s",
597 pvr2_ctrl_get_name(cptr));
598 cip->name[cnt] = 0;
599 cip->grp.name = cip->name;
600 cip->grp.attrs = cip->attr_gen;
601
08d41808
MI		 602 ret = sysfs_create_group(&sfp->class_dev->kobj,&cip->grp);
603 if (ret) {
604 printk(KERN_WARNING "%s: sysfs_create_group error: %d\n",
605 __FUNCTION__, ret);
606 return;
607 }
608 cip->created_ok = !0;
d855497e
MI		 609}
610
611#ifdef CONFIG_VIDEO_PVRUSB2_DEBUGIFC
c726b65d
TP		 612static ssize_t debuginfo_show(struct device *, struct device_attribute *,
613 char *);
614static ssize_t debugcmd_show(struct device *, struct device_attribute *,
615 char *);
616static ssize_t debugcmd_store(struct device *, struct device_attribute *,
617 const char *, size_t count);
d855497e
MI		 618
619static void pvr2_sysfs_add_debugifc(struct pvr2_sysfs *sfp)
620{
621 struct pvr2_sysfs_debugifc *dip;
3117beec
MK		 622 int ret;
623
ca545f7c 624 dip = kzalloc(sizeof(*dip),GFP_KERNEL);
d855497e 625 if (!dip) return;
d855497e
MI		 626 dip->attr_debugcmd.attr.name = "debugcmd";
627 dip->attr_debugcmd.attr.mode = S_IRUGO|S_IWUSR|S_IWGRP;
628 dip->attr_debugcmd.show = debugcmd_show;
629 dip->attr_debugcmd.store = debugcmd_store;
d855497e
MI		 630 dip->attr_debuginfo.attr.name = "debuginfo";
631 dip->attr_debuginfo.attr.mode = S_IRUGO;
632 dip->attr_debuginfo.show = debuginfo_show;
633 sfp->debugifc = dip;
54bd5b66 634 ret = device_create_file(sfp->class_dev,&dip->attr_debugcmd);
08d41808 635 if (ret < 0) {
54bd5b66 636 printk(KERN_WARNING "%s: device_create_file error: %d\n",
3117beec 637 __FUNCTION__, ret);
08d41808
MI		 638 } else {
639 dip->debugcmd_created_ok = !0;
640 }
54bd5b66 641 ret = device_create_file(sfp->class_dev,&dip->attr_debuginfo);
08d41808 642 if (ret < 0) {
54bd5b66 643 printk(KERN_WARNING "%s: device_create_file error: %d\n",
3117beec 644 __FUNCTION__, ret);
08d41808
MI		 645 } else {
646 dip->debuginfo_created_ok = !0;
647 }
d855497e
MI		 648}
649
650
651static void pvr2_sysfs_tear_down_debugifc(struct pvr2_sysfs *sfp)
652{
653 if (!sfp->debugifc) return;
08d41808 654 if (sfp->debugifc->debuginfo_created_ok) {
54bd5b66 655 device_remove_file(sfp->class_dev,
08d41808
MI		 656 &sfp->debugifc->attr_debuginfo);
657 }
658 if (sfp->debugifc->debugcmd_created_ok) {
54bd5b66 659 device_remove_file(sfp->class_dev,
08d41808
MI		 660 &sfp->debugifc->attr_debugcmd);
661 }
d855497e 662 kfree(sfp->debugifc);
a0fd1cb1 663 sfp->debugifc = NULL;
d855497e
MI		 664}
665#endif /* CONFIG_VIDEO_PVRUSB2_DEBUGIFC */
666
667
668static void pvr2_sysfs_add_controls(struct pvr2_sysfs *sfp)
669{
670 unsigned int idx,cnt;
671 cnt = pvr2_hdw_get_ctrl_count(sfp->channel.hdw);
672 for (idx = 0; idx < cnt; idx++) {
673 pvr2_sysfs_add_control(sfp,idx);
674 }
675}
676
677
678static void pvr2_sysfs_tear_down_controls(struct pvr2_sysfs *sfp)
679{
680 struct pvr2_sysfs_ctl_item *cip1,*cip2;
681 for (cip1 = sfp->item_first; cip1; cip1 = cip2) {
682 cip2 = cip1->item_next;
08d41808
MI		 683 if (cip1->created_ok) {
684 sysfs_remove_group(&sfp->class_dev->kobj,&cip1->grp);
685 }
d855497e
MI		 686 pvr2_sysfs_trace("Destroying pvr2_sysfs_ctl_item id=%p",cip1);
687 kfree(cip1);
688 }
689}
690
691
692static void pvr2_sysfs_class_release(struct class *class)
693{
694 struct pvr2_sysfs_class *clp;
695 clp = container_of(class,struct pvr2_sysfs_class,class);
696 pvr2_sysfs_trace("Destroying pvr2_sysfs_class id=%p",clp);
697 kfree(clp);
698}
699
700
54bd5b66 701static void pvr2_sysfs_release(struct device *class_dev)
d855497e
MI		 702{
703 pvr2_sysfs_trace("Releasing class_dev id=%p",class_dev);
704 kfree(class_dev);
705}
706
707
708static void class_dev_destroy(struct pvr2_sysfs *sfp)
709{
710 if (!sfp->class_dev) return;
711#ifdef CONFIG_VIDEO_PVRUSB2_DEBUGIFC
712 pvr2_sysfs_tear_down_debugifc(sfp);
713#endif /* CONFIG_VIDEO_PVRUSB2_DEBUGIFC */
714 pvr2_sysfs_tear_down_controls(sfp);
31a18547 715 if (sfp->bus_info_created_ok) {
54bd5b66 716 device_remove_file(sfp->class_dev,
31a18547
MI		 717 &sfp->attr_bus_info);
718 }
08d41808 719 if (sfp->v4l_minor_number_created_ok) {
54bd5b66 720 device_remove_file(sfp->class_dev,
08d41808
MI		 721 &sfp->attr_v4l_minor_number);
722 }
2fdf3d9c 723 if (sfp->v4l_radio_minor_number_created_ok) {
54bd5b66 724 device_remove_file(sfp->class_dev,
2fdf3d9c
PK		 725 &sfp->attr_v4l_radio_minor_number);
726 }
08d41808 727 if (sfp->unit_number_created_ok) {
54bd5b66 728 device_remove_file(sfp->class_dev,
08d41808
MI		 729 &sfp->attr_unit_number);
730 }
d855497e 731 pvr2_sysfs_trace("Destroying class_dev id=%p",sfp->class_dev);
54bd5b66
KS		 732 sfp->class_dev->driver_data = NULL;
733 device_unregister(sfp->class_dev);
a0fd1cb1 734 sfp->class_dev = NULL;
d855497e
MI		 735}
736
737
54bd5b66
KS		 738static ssize_t v4l_minor_number_show(struct device *class_dev,
739 struct device_attribute *attr, char *buf)
d855497e
MI		 740{
741 struct pvr2_sysfs *sfp;
54bd5b66 742 sfp = (struct pvr2_sysfs *)class_dev->driver_data;
d855497e
MI		 743 if (!sfp) return -EINVAL;
744 return scnprintf(buf,PAGE_SIZE,"%d\n",
fd5a75fe 745 pvr2_hdw_v4l_get_minor_number(sfp->channel.hdw,
8079384e 746 pvr2_v4l_type_video));
2fdf3d9c
PK		 747}
748
749
54bd5b66
KS		 750static ssize_t bus_info_show(struct device *class_dev,
751 struct device_attribute *attr, char *buf)
31a18547
MI		 752{
753 struct pvr2_sysfs *sfp;
54bd5b66 754 sfp = (struct pvr2_sysfs *)class_dev->driver_data;
31a18547
MI		 755 if (!sfp) return -EINVAL;
756 return scnprintf(buf,PAGE_SIZE,"%s\n",
757 pvr2_hdw_get_bus_info(sfp->channel.hdw));
758}
759
760
54bd5b66
KS		 761static ssize_t v4l_radio_minor_number_show(struct device *class_dev,
762 struct device_attribute *attr,
2fdf3d9c
PK		 763 char *buf)
764{
765 struct pvr2_sysfs *sfp;
54bd5b66 766 sfp = (struct pvr2_sysfs *)class_dev->driver_data;
2fdf3d9c
PK		 767 if (!sfp) return -EINVAL;
768 return scnprintf(buf,PAGE_SIZE,"%d\n",
fd5a75fe 769 pvr2_hdw_v4l_get_minor_number(sfp->channel.hdw,
8079384e 770 pvr2_v4l_type_radio));
d855497e
MI		 771}
772
773
54bd5b66
KS		 774static ssize_t unit_number_show(struct device *class_dev,
775 struct device_attribute *attr, char *buf)
d855497e
MI		 776{
777 struct pvr2_sysfs *sfp;
54bd5b66 778 sfp = (struct pvr2_sysfs *)class_dev->driver_data;
d855497e
MI		 779 if (!sfp) return -EINVAL;
780 return scnprintf(buf,PAGE_SIZE,"%d\n",
781 pvr2_hdw_get_unit_number(sfp->channel.hdw));
782}
783
784
785static void class_dev_create(struct pvr2_sysfs *sfp,
786 struct pvr2_sysfs_class *class_ptr)
787{
788 struct usb_device *usb_dev;
54bd5b66 789 struct device *class_dev;
3117beec
MK		 790 int ret;
791
d855497e
MI		 792 usb_dev = pvr2_hdw_get_dev(sfp->channel.hdw);
793 if (!usb_dev) return;
ca545f7c 794 class_dev = kzalloc(sizeof(*class_dev),GFP_KERNEL);
d855497e 795 if (!class_dev) return;
d855497e
MI		 796
797 pvr2_sysfs_trace("Creating class_dev id=%p",class_dev);
798
799 class_dev->class = &class_ptr->class;
800 if (pvr2_hdw_get_sn(sfp->channel.hdw)) {
54bd5b66 801 snprintf(class_dev->bus_id, BUS_ID_SIZE, "sn-%lu",
d855497e
MI		 802 pvr2_hdw_get_sn(sfp->channel.hdw));
803 } else if (pvr2_hdw_get_unit_number(sfp->channel.hdw) >= 0) {
54bd5b66 804 snprintf(class_dev->bus_id, BUS_ID_SIZE, "unit-%c",
d855497e
MI		 805 pvr2_hdw_get_unit_number(sfp->channel.hdw) + 'a');
806 } else {
807 kfree(class_dev);
808 return;
809 }
810
54bd5b66 811 class_dev->parent = &usb_dev->dev;
d855497e
MI		 812
813 sfp->class_dev = class_dev;
54bd5b66
KS		 814 class_dev->driver_data = sfp;
815 ret = device_register(class_dev);
3117beec 816 if (ret) {
54bd5b66 817 printk(KERN_ERR "%s: device_register failed\n",
3117beec
MK		 818 __FUNCTION__);
819 kfree(class_dev);
820 return;
821 }
d855497e 822
d855497e
MI		 823 sfp->attr_v4l_minor_number.attr.name = "v4l_minor_number";
824 sfp->attr_v4l_minor_number.attr.mode = S_IRUGO;
825 sfp->attr_v4l_minor_number.show = v4l_minor_number_show;
a0fd1cb1 826 sfp->attr_v4l_minor_number.store = NULL;
54bd5b66 827 ret = device_create_file(sfp->class_dev,
08d41808
MI		 828 &sfp->attr_v4l_minor_number);
829 if (ret < 0) {
54bd5b66 830 printk(KERN_WARNING "%s: device_create_file error: %d\n",
3117beec 831 __FUNCTION__, ret);
08d41808
MI		 832 } else {
833 sfp->v4l_minor_number_created_ok = !0;
834 }
3117beec 835
2fdf3d9c
PK		 836 sfp->attr_v4l_radio_minor_number.attr.name = "v4l_radio_minor_number";
837 sfp->attr_v4l_radio_minor_number.attr.mode = S_IRUGO;
838 sfp->attr_v4l_radio_minor_number.show = v4l_radio_minor_number_show;
839 sfp->attr_v4l_radio_minor_number.store = NULL;
54bd5b66 840 ret = device_create_file(sfp->class_dev,
2fdf3d9c
PK		 841 &sfp->attr_v4l_radio_minor_number);
842 if (ret < 0) {
54bd5b66 843 printk(KERN_WARNING "%s: device_create_file error: %d\n",
2fdf3d9c
PK		 844 __FUNCTION__, ret);
845 } else {
846 sfp->v4l_radio_minor_number_created_ok = !0;
847 }
848
d855497e
MI		 849 sfp->attr_unit_number.attr.name = "unit_number";
850 sfp->attr_unit_number.attr.mode = S_IRUGO;
851 sfp->attr_unit_number.show = unit_number_show;
a0fd1cb1 852 sfp->attr_unit_number.store = NULL;
54bd5b66 853 ret = device_create_file(sfp->class_dev,&sfp->attr_unit_number);
08d41808 854 if (ret < 0) {
54bd5b66 855 printk(KERN_WARNING "%s: device_create_file error: %d\n",
3117beec 856 __FUNCTION__, ret);
08d41808
MI		 857 } else {
858 sfp->unit_number_created_ok = !0;
859 }
d855497e 860
31a18547
MI		 861 sfp->attr_bus_info.attr.name = "bus_info_str";
862 sfp->attr_bus_info.attr.mode = S_IRUGO;
863 sfp->attr_bus_info.show = bus_info_show;
864 sfp->attr_bus_info.store = NULL;
54bd5b66 865 ret = device_create_file(sfp->class_dev,
31a18547
MI		 866 &sfp->attr_bus_info);
867 if (ret < 0) {
54bd5b66 868 printk(KERN_WARNING "%s: device_create_file error: %d\n",
31a18547
MI		 869 __FUNCTION__, ret);
870 } else {
871 sfp->bus_info_created_ok = !0;
872 }
873
d855497e
MI		 874 pvr2_sysfs_add_controls(sfp);
875#ifdef CONFIG_VIDEO_PVRUSB2_DEBUGIFC
876 pvr2_sysfs_add_debugifc(sfp);
877#endif /* CONFIG_VIDEO_PVRUSB2_DEBUGIFC */
878}
879
880
881static void pvr2_sysfs_internal_check(struct pvr2_channel *chp)
882{
883 struct pvr2_sysfs *sfp;
884 sfp = container_of(chp,struct pvr2_sysfs,channel);
885 if (!sfp->channel.mc_head->disconnect_flag) return;
886 pvr2_trace(PVR2_TRACE_STRUCT,"Destroying pvr2_sysfs id=%p",sfp);
887 class_dev_destroy(sfp);
888 pvr2_channel_done(&sfp->channel);
889 kfree(sfp);
890}
891
892
893struct pvr2_sysfs *pvr2_sysfs_create(struct pvr2_context *mp,
894 struct pvr2_sysfs_class *class_ptr)
895{
896 struct pvr2_sysfs *sfp;
ca545f7c 897 sfp = kzalloc(sizeof(*sfp),GFP_KERNEL);
d855497e 898 if (!sfp) return sfp;
d855497e
MI		 899 pvr2_trace(PVR2_TRACE_STRUCT,"Creating pvr2_sysfs id=%p",sfp);
900 pvr2_channel_init(&sfp->channel,mp);
901 sfp->channel.check_func = pvr2_sysfs_internal_check;
902
903 class_dev_create(sfp,class_ptr);
904 return sfp;
905}
906
907
7eff2e7a
KS		 908static int pvr2_sysfs_hotplug(struct device *d,
909 struct kobj_uevent_env *env)
d855497e
MI		 910{
911 /* Even though we don't do anything here, we still need this function
912 because sysfs will still try to call it. */
913 return 0;
914}
915
916struct pvr2_sysfs_class *pvr2_sysfs_class_create(void)
917{
918 struct pvr2_sysfs_class *clp;
ca545f7c 919 clp = kzalloc(sizeof(*clp),GFP_KERNEL);
d855497e 920 if (!clp) return clp;
d855497e
MI		 921 pvr2_sysfs_trace("Creating pvr2_sysfs_class id=%p",clp);
922 clp->class.name = "pvrusb2";
923 clp->class.class_release = pvr2_sysfs_class_release;
54bd5b66
KS		 924 clp->class.dev_release = pvr2_sysfs_release;
925 clp->class.dev_uevent = pvr2_sysfs_hotplug;
d855497e
MI		 926 if (class_register(&clp->class)) {
927 pvr2_sysfs_trace(
928 "Registration failed for pvr2_sysfs_class id=%p",clp);
929 kfree(clp);
a0fd1cb1 930 clp = NULL;
d855497e
MI		 931 }
932 return clp;
933}
934
935
936void pvr2_sysfs_class_destroy(struct pvr2_sysfs_class *clp)
937{
938 class_unregister(&clp->class);
939}
940
941
942#ifdef CONFIG_VIDEO_PVRUSB2_DEBUGIFC
c726b65d
TP		 943static ssize_t debuginfo_show(struct device *class_dev,
944 struct device_attribute *attr, char *buf)
d855497e
MI		 945{
946 struct pvr2_sysfs *sfp;
54bd5b66 947 sfp = (struct pvr2_sysfs *)class_dev->driver_data;
d855497e
MI		 948 if (!sfp) return -EINVAL;
949 pvr2_hdw_trigger_module_log(sfp->channel.hdw);
950 return pvr2_debugifc_print_info(sfp->channel.hdw,buf,PAGE_SIZE);
951}
952
953
c726b65d
TP		 954static ssize_t debugcmd_show(struct device *class_dev,
955 struct device_attribute *attr, char *buf)
d855497e
MI		 956{
957 struct pvr2_sysfs *sfp;
54bd5b66 958 sfp = (struct pvr2_sysfs *)class_dev->driver_data;
d855497e
MI		 959 if (!sfp) return -EINVAL;
960 return pvr2_debugifc_print_status(sfp->channel.hdw,buf,PAGE_SIZE);
961}
962
963
54bd5b66 964static ssize_t debugcmd_store(struct device *class_dev,
c726b65d 965 struct device_attribute *attr,
54bd5b66 966 const char *buf, size_t count)
d855497e
MI		 967{
968 struct pvr2_sysfs *sfp;
969 int ret;
970
54bd5b66 971 sfp = (struct pvr2_sysfs *)class_dev->driver_data;
d855497e
MI		 972 if (!sfp) return -EINVAL;
973
974 ret = pvr2_debugifc_docmd(sfp->channel.hdw,buf,count);
975 if (ret < 0) return ret;
976 return count;
977}
978#endif /* CONFIG_VIDEO_PVRUSB2_DEBUGIFC */
979
980
981/*
982 Stuff for Emacs to see, in order to encourage consistent editing style:
983 *** Local Variables: ***
984 *** mode: c ***
985 *** fill-column: 75 ***
986 *** tab-width: 8 ***
987 *** c-basic-offset: 8 ***
988 *** End: ***
989 */
kernel source for telekom puls (alcatel/mediatek)