diff options
Diffstat (limited to 'drivers/media/video/v4l2-ioctl.c')
-rw-r--r-- | drivers/media/video/v4l2-ioctl.c | 2324 |
1 files changed, 0 insertions, 2324 deletions
diff --git a/drivers/media/video/v4l2-ioctl.c b/drivers/media/video/v4l2-ioctl.c deleted file mode 100644 index c3b7b5f59b32..000000000000 --- a/drivers/media/video/v4l2-ioctl.c +++ /dev/null | |||
@@ -1,2324 +0,0 @@ | |||
1 | /* | ||
2 | * Video capture interface for Linux version 2 | ||
3 | * | ||
4 | * A generic framework to process V4L2 ioctl commands. | ||
5 | * | ||
6 | * This program is free software; you can redistribute it and/or | ||
7 | * modify it under the terms of the GNU General Public License | ||
8 | * as published by the Free Software Foundation; either version | ||
9 | * 2 of the License, or (at your option) any later version. | ||
10 | * | ||
11 | * Authors: Alan Cox, <alan@lxorguk.ukuu.org.uk> (version 1) | ||
12 | * Mauro Carvalho Chehab <mchehab@infradead.org> (version 2) | ||
13 | */ | ||
14 | |||
15 | #include <linux/module.h> | ||
16 | #include <linux/slab.h> | ||
17 | #include <linux/types.h> | ||
18 | #include <linux/kernel.h> | ||
19 | #include <linux/version.h> | ||
20 | |||
21 | #include <linux/videodev2.h> | ||
22 | |||
23 | #include <media/v4l2-common.h> | ||
24 | #include <media/v4l2-ioctl.h> | ||
25 | #include <media/v4l2-ctrls.h> | ||
26 | #include <media/v4l2-fh.h> | ||
27 | #include <media/v4l2-event.h> | ||
28 | #include <media/v4l2-device.h> | ||
29 | #include <media/v4l2-chip-ident.h> | ||
30 | #include <media/videobuf2-core.h> | ||
31 | |||
32 | /* Zero out the end of the struct pointed to by p. Everything after, but | ||
33 | * not including, the specified field is cleared. */ | ||
34 | #define CLEAR_AFTER_FIELD(p, field) \ | ||
35 | memset((u8 *)(p) + offsetof(typeof(*(p)), field) + sizeof((p)->field), \ | ||
36 | 0, sizeof(*(p)) - offsetof(typeof(*(p)), field) - sizeof((p)->field)) | ||
37 | |||
38 | struct std_descr { | ||
39 | v4l2_std_id std; | ||
40 | const char *descr; | ||
41 | }; | ||
42 | |||
43 | static const struct std_descr standards[] = { | ||
44 | { V4L2_STD_NTSC, "NTSC" }, | ||
45 | { V4L2_STD_NTSC_M, "NTSC-M" }, | ||
46 | { V4L2_STD_NTSC_M_JP, "NTSC-M-JP" }, | ||
47 | { V4L2_STD_NTSC_M_KR, "NTSC-M-KR" }, | ||
48 | { V4L2_STD_NTSC_443, "NTSC-443" }, | ||
49 | { V4L2_STD_PAL, "PAL" }, | ||
50 | { V4L2_STD_PAL_BG, "PAL-BG" }, | ||
51 | { V4L2_STD_PAL_B, "PAL-B" }, | ||
52 | { V4L2_STD_PAL_B1, "PAL-B1" }, | ||
53 | { V4L2_STD_PAL_G, "PAL-G" }, | ||
54 | { V4L2_STD_PAL_H, "PAL-H" }, | ||
55 | { V4L2_STD_PAL_I, "PAL-I" }, | ||
56 | { V4L2_STD_PAL_DK, "PAL-DK" }, | ||
57 | { V4L2_STD_PAL_D, "PAL-D" }, | ||
58 | { V4L2_STD_PAL_D1, "PAL-D1" }, | ||
59 | { V4L2_STD_PAL_K, "PAL-K" }, | ||
60 | { V4L2_STD_PAL_M, "PAL-M" }, | ||
61 | { V4L2_STD_PAL_N, "PAL-N" }, | ||
62 | { V4L2_STD_PAL_Nc, "PAL-Nc" }, | ||
63 | { V4L2_STD_PAL_60, "PAL-60" }, | ||
64 | { V4L2_STD_SECAM, "SECAM" }, | ||
65 | { V4L2_STD_SECAM_B, "SECAM-B" }, | ||
66 | { V4L2_STD_SECAM_G, "SECAM-G" }, | ||
67 | { V4L2_STD_SECAM_H, "SECAM-H" }, | ||
68 | { V4L2_STD_SECAM_DK, "SECAM-DK" }, | ||
69 | { V4L2_STD_SECAM_D, "SECAM-D" }, | ||
70 | { V4L2_STD_SECAM_K, "SECAM-K" }, | ||
71 | { V4L2_STD_SECAM_K1, "SECAM-K1" }, | ||
72 | { V4L2_STD_SECAM_L, "SECAM-L" }, | ||
73 | { V4L2_STD_SECAM_LC, "SECAM-Lc" }, | ||
74 | { 0, "Unknown" } | ||
75 | }; | ||
76 | |||
77 | /* video4linux standard ID conversion to standard name | ||
78 | */ | ||
79 | const char *v4l2_norm_to_name(v4l2_std_id id) | ||
80 | { | ||
81 | u32 myid = id; | ||
82 | int i; | ||
83 | |||
84 | /* HACK: ppc32 architecture doesn't have __ucmpdi2 function to handle | ||
85 | 64 bit comparations. So, on that architecture, with some gcc | ||
86 | variants, compilation fails. Currently, the max value is 30bit wide. | ||
87 | */ | ||
88 | BUG_ON(myid != id); | ||
89 | |||
90 | for (i = 0; standards[i].std; i++) | ||
91 | if (myid == standards[i].std) | ||
92 | break; | ||
93 | return standards[i].descr; | ||
94 | } | ||
95 | EXPORT_SYMBOL(v4l2_norm_to_name); | ||
96 | |||
97 | /* Returns frame period for the given standard */ | ||
98 | void v4l2_video_std_frame_period(int id, struct v4l2_fract *frameperiod) | ||
99 | { | ||
100 | if (id & V4L2_STD_525_60) { | ||
101 | frameperiod->numerator = 1001; | ||
102 | frameperiod->denominator = 30000; | ||
103 | } else { | ||
104 | frameperiod->numerator = 1; | ||
105 | frameperiod->denominator = 25; | ||
106 | } | ||
107 | } | ||
108 | EXPORT_SYMBOL(v4l2_video_std_frame_period); | ||
109 | |||
110 | /* Fill in the fields of a v4l2_standard structure according to the | ||
111 | 'id' and 'transmission' parameters. Returns negative on error. */ | ||
112 | int v4l2_video_std_construct(struct v4l2_standard *vs, | ||
113 | int id, const char *name) | ||
114 | { | ||
115 | vs->id = id; | ||
116 | v4l2_video_std_frame_period(id, &vs->frameperiod); | ||
117 | vs->framelines = (id & V4L2_STD_525_60) ? 525 : 625; | ||
118 | strlcpy(vs->name, name, sizeof(vs->name)); | ||
119 | return 0; | ||
120 | } | ||
121 | EXPORT_SYMBOL(v4l2_video_std_construct); | ||
122 | |||
123 | /* ----------------------------------------------------------------- */ | ||
124 | /* some arrays for pretty-printing debug messages of enum types */ | ||
125 | |||
126 | const char *v4l2_field_names[] = { | ||
127 | [V4L2_FIELD_ANY] = "any", | ||
128 | [V4L2_FIELD_NONE] = "none", | ||
129 | [V4L2_FIELD_TOP] = "top", | ||
130 | [V4L2_FIELD_BOTTOM] = "bottom", | ||
131 | [V4L2_FIELD_INTERLACED] = "interlaced", | ||
132 | [V4L2_FIELD_SEQ_TB] = "seq-tb", | ||
133 | [V4L2_FIELD_SEQ_BT] = "seq-bt", | ||
134 | [V4L2_FIELD_ALTERNATE] = "alternate", | ||
135 | [V4L2_FIELD_INTERLACED_TB] = "interlaced-tb", | ||
136 | [V4L2_FIELD_INTERLACED_BT] = "interlaced-bt", | ||
137 | }; | ||
138 | EXPORT_SYMBOL(v4l2_field_names); | ||
139 | |||
140 | const char *v4l2_type_names[] = { | ||
141 | [V4L2_BUF_TYPE_VIDEO_CAPTURE] = "vid-cap", | ||
142 | [V4L2_BUF_TYPE_VIDEO_OVERLAY] = "vid-overlay", | ||
143 | [V4L2_BUF_TYPE_VIDEO_OUTPUT] = "vid-out", | ||
144 | [V4L2_BUF_TYPE_VBI_CAPTURE] = "vbi-cap", | ||
145 | [V4L2_BUF_TYPE_VBI_OUTPUT] = "vbi-out", | ||
146 | [V4L2_BUF_TYPE_SLICED_VBI_CAPTURE] = "sliced-vbi-cap", | ||
147 | [V4L2_BUF_TYPE_SLICED_VBI_OUTPUT] = "sliced-vbi-out", | ||
148 | [V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY] = "vid-out-overlay", | ||
149 | [V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE] = "vid-cap-mplane", | ||
150 | [V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE] = "vid-out-mplane", | ||
151 | }; | ||
152 | EXPORT_SYMBOL(v4l2_type_names); | ||
153 | |||
154 | static const char *v4l2_memory_names[] = { | ||
155 | [V4L2_MEMORY_MMAP] = "mmap", | ||
156 | [V4L2_MEMORY_USERPTR] = "userptr", | ||
157 | [V4L2_MEMORY_OVERLAY] = "overlay", | ||
158 | }; | ||
159 | |||
160 | #define prt_names(a, arr) ((((a) >= 0) && ((a) < ARRAY_SIZE(arr))) ? \ | ||
161 | arr[a] : "unknown") | ||
162 | |||
163 | /* ------------------------------------------------------------------ */ | ||
164 | /* debug help functions */ | ||
165 | |||
166 | static void v4l_print_querycap(const void *arg, bool write_only) | ||
167 | { | ||
168 | const struct v4l2_capability *p = arg; | ||
169 | |||
170 | pr_cont("driver=%s, card=%s, bus=%s, version=0x%08x, " | ||
171 | "capabilities=0x%08x, device_caps=0x%08x\n", | ||
172 | p->driver, p->card, p->bus_info, | ||
173 | p->version, p->capabilities, p->device_caps); | ||
174 | } | ||
175 | |||
176 | static void v4l_print_enuminput(const void *arg, bool write_only) | ||
177 | { | ||
178 | const struct v4l2_input *p = arg; | ||
179 | |||
180 | pr_cont("index=%u, name=%s, type=%u, audioset=0x%x, tuner=%u, " | ||
181 | "std=0x%08Lx, status=0x%x, capabilities=0x%x\n", | ||
182 | p->index, p->name, p->type, p->audioset, p->tuner, | ||
183 | (unsigned long long)p->std, p->status, p->capabilities); | ||
184 | } | ||
185 | |||
186 | static void v4l_print_enumoutput(const void *arg, bool write_only) | ||
187 | { | ||
188 | const struct v4l2_output *p = arg; | ||
189 | |||
190 | pr_cont("index=%u, name=%s, type=%u, audioset=0x%x, " | ||
191 | "modulator=%u, std=0x%08Lx, capabilities=0x%x\n", | ||
192 | p->index, p->name, p->type, p->audioset, p->modulator, | ||
193 | (unsigned long long)p->std, p->capabilities); | ||
194 | } | ||
195 | |||
196 | static void v4l_print_audio(const void *arg, bool write_only) | ||
197 | { | ||
198 | const struct v4l2_audio *p = arg; | ||
199 | |||
200 | if (write_only) | ||
201 | pr_cont("index=%u, mode=0x%x\n", p->index, p->mode); | ||
202 | else | ||
203 | pr_cont("index=%u, name=%s, capability=0x%x, mode=0x%x\n", | ||
204 | p->index, p->name, p->capability, p->mode); | ||
205 | } | ||
206 | |||
207 | static void v4l_print_audioout(const void *arg, bool write_only) | ||
208 | { | ||
209 | const struct v4l2_audioout *p = arg; | ||
210 | |||
211 | if (write_only) | ||
212 | pr_cont("index=%u\n", p->index); | ||
213 | else | ||
214 | pr_cont("index=%u, name=%s, capability=0x%x, mode=0x%x\n", | ||
215 | p->index, p->name, p->capability, p->mode); | ||
216 | } | ||
217 | |||
218 | static void v4l_print_fmtdesc(const void *arg, bool write_only) | ||
219 | { | ||
220 | const struct v4l2_fmtdesc *p = arg; | ||
221 | |||
222 | pr_cont("index=%u, type=%s, flags=0x%x, pixelformat=%c%c%c%c, description='%s'\n", | ||
223 | p->index, prt_names(p->type, v4l2_type_names), | ||
224 | p->flags, (p->pixelformat & 0xff), | ||
225 | (p->pixelformat >> 8) & 0xff, | ||
226 | (p->pixelformat >> 16) & 0xff, | ||
227 | (p->pixelformat >> 24) & 0xff, | ||
228 | p->description); | ||
229 | } | ||
230 | |||
231 | static void v4l_print_format(const void *arg, bool write_only) | ||
232 | { | ||
233 | const struct v4l2_format *p = arg; | ||
234 | const struct v4l2_pix_format *pix; | ||
235 | const struct v4l2_pix_format_mplane *mp; | ||
236 | const struct v4l2_vbi_format *vbi; | ||
237 | const struct v4l2_sliced_vbi_format *sliced; | ||
238 | const struct v4l2_window *win; | ||
239 | const struct v4l2_clip *clip; | ||
240 | unsigned i; | ||
241 | |||
242 | pr_cont("type=%s", prt_names(p->type, v4l2_type_names)); | ||
243 | switch (p->type) { | ||
244 | case V4L2_BUF_TYPE_VIDEO_CAPTURE: | ||
245 | case V4L2_BUF_TYPE_VIDEO_OUTPUT: | ||
246 | pix = &p->fmt.pix; | ||
247 | pr_cont(", width=%u, height=%u, " | ||
248 | "pixelformat=%c%c%c%c, field=%s, " | ||
249 | "bytesperline=%u sizeimage=%u, colorspace=%d\n", | ||
250 | pix->width, pix->height, | ||
251 | (pix->pixelformat & 0xff), | ||
252 | (pix->pixelformat >> 8) & 0xff, | ||
253 | (pix->pixelformat >> 16) & 0xff, | ||
254 | (pix->pixelformat >> 24) & 0xff, | ||
255 | prt_names(pix->field, v4l2_field_names), | ||
256 | pix->bytesperline, pix->sizeimage, | ||
257 | pix->colorspace); | ||
258 | break; | ||
259 | case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE: | ||
260 | case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE: | ||
261 | mp = &p->fmt.pix_mp; | ||
262 | pr_cont(", width=%u, height=%u, " | ||
263 | "format=%c%c%c%c, field=%s, " | ||
264 | "colorspace=%d, num_planes=%u\n", | ||
265 | mp->width, mp->height, | ||
266 | (mp->pixelformat & 0xff), | ||
267 | (mp->pixelformat >> 8) & 0xff, | ||
268 | (mp->pixelformat >> 16) & 0xff, | ||
269 | (mp->pixelformat >> 24) & 0xff, | ||
270 | prt_names(mp->field, v4l2_field_names), | ||
271 | mp->colorspace, mp->num_planes); | ||
272 | for (i = 0; i < mp->num_planes; i++) | ||
273 | printk(KERN_DEBUG "plane %u: bytesperline=%u sizeimage=%u\n", i, | ||
274 | mp->plane_fmt[i].bytesperline, | ||
275 | mp->plane_fmt[i].sizeimage); | ||
276 | break; | ||
277 | case V4L2_BUF_TYPE_VIDEO_OVERLAY: | ||
278 | case V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY: | ||
279 | win = &p->fmt.win; | ||
280 | pr_cont(", wxh=%dx%d, x,y=%d,%d, field=%s, " | ||
281 | "chromakey=0x%08x, bitmap=%p, " | ||
282 | "global_alpha=0x%02x\n", | ||
283 | win->w.width, win->w.height, | ||
284 | win->w.left, win->w.top, | ||
285 | prt_names(win->field, v4l2_field_names), | ||
286 | win->chromakey, win->bitmap, win->global_alpha); | ||
287 | clip = win->clips; | ||
288 | for (i = 0; i < win->clipcount; i++) { | ||
289 | printk(KERN_DEBUG "clip %u: wxh=%dx%d, x,y=%d,%d\n", | ||
290 | i, clip->c.width, clip->c.height, | ||
291 | clip->c.left, clip->c.top); | ||
292 | clip = clip->next; | ||
293 | } | ||
294 | break; | ||
295 | case V4L2_BUF_TYPE_VBI_CAPTURE: | ||
296 | case V4L2_BUF_TYPE_VBI_OUTPUT: | ||
297 | vbi = &p->fmt.vbi; | ||
298 | pr_cont(", sampling_rate=%u, offset=%u, samples_per_line=%u, " | ||
299 | "sample_format=%c%c%c%c, start=%u,%u, count=%u,%u\n", | ||
300 | vbi->sampling_rate, vbi->offset, | ||
301 | vbi->samples_per_line, | ||
302 | (vbi->sample_format & 0xff), | ||
303 | (vbi->sample_format >> 8) & 0xff, | ||
304 | (vbi->sample_format >> 16) & 0xff, | ||
305 | (vbi->sample_format >> 24) & 0xff, | ||
306 | vbi->start[0], vbi->start[1], | ||
307 | vbi->count[0], vbi->count[1]); | ||
308 | break; | ||
309 | case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE: | ||
310 | case V4L2_BUF_TYPE_SLICED_VBI_OUTPUT: | ||
311 | sliced = &p->fmt.sliced; | ||
312 | pr_cont(", service_set=0x%08x, io_size=%d\n", | ||
313 | sliced->service_set, sliced->io_size); | ||
314 | for (i = 0; i < 24; i++) | ||
315 | printk(KERN_DEBUG "line[%02u]=0x%04x, 0x%04x\n", i, | ||
316 | sliced->service_lines[0][i], | ||
317 | sliced->service_lines[1][i]); | ||
318 | break; | ||
319 | case V4L2_BUF_TYPE_PRIVATE: | ||
320 | pr_cont("\n"); | ||
321 | break; | ||
322 | } | ||
323 | } | ||
324 | |||
325 | static void v4l_print_framebuffer(const void *arg, bool write_only) | ||
326 | { | ||
327 | const struct v4l2_framebuffer *p = arg; | ||
328 | |||
329 | pr_cont("capability=0x%x, flags=0x%x, base=0x%p, width=%u, " | ||
330 | "height=%u, pixelformat=%c%c%c%c, " | ||
331 | "bytesperline=%u sizeimage=%u, colorspace=%d\n", | ||
332 | p->capability, p->flags, p->base, | ||
333 | p->fmt.width, p->fmt.height, | ||
334 | (p->fmt.pixelformat & 0xff), | ||
335 | (p->fmt.pixelformat >> 8) & 0xff, | ||
336 | (p->fmt.pixelformat >> 16) & 0xff, | ||
337 | (p->fmt.pixelformat >> 24) & 0xff, | ||
338 | p->fmt.bytesperline, p->fmt.sizeimage, | ||
339 | p->fmt.colorspace); | ||
340 | } | ||
341 | |||
342 | static void v4l_print_buftype(const void *arg, bool write_only) | ||
343 | { | ||
344 | pr_cont("type=%s\n", prt_names(*(u32 *)arg, v4l2_type_names)); | ||
345 | } | ||
346 | |||
347 | static void v4l_print_modulator(const void *arg, bool write_only) | ||
348 | { | ||
349 | const struct v4l2_modulator *p = arg; | ||
350 | |||
351 | if (write_only) | ||
352 | pr_cont("index=%u, txsubchans=0x%x", p->index, p->txsubchans); | ||
353 | else | ||
354 | pr_cont("index=%u, name=%s, capability=0x%x, " | ||
355 | "rangelow=%u, rangehigh=%u, txsubchans=0x%x\n", | ||
356 | p->index, p->name, p->capability, | ||
357 | p->rangelow, p->rangehigh, p->txsubchans); | ||
358 | } | ||
359 | |||
360 | static void v4l_print_tuner(const void *arg, bool write_only) | ||
361 | { | ||
362 | const struct v4l2_tuner *p = arg; | ||
363 | |||
364 | if (write_only) | ||
365 | pr_cont("index=%u, audmode=%u\n", p->index, p->audmode); | ||
366 | else | ||
367 | pr_cont("index=%u, name=%s, type=%u, capability=0x%x, " | ||
368 | "rangelow=%u, rangehigh=%u, signal=%u, afc=%d, " | ||
369 | "rxsubchans=0x%x, audmode=%u\n", | ||
370 | p->index, p->name, p->type, | ||
371 | p->capability, p->rangelow, | ||
372 | p->rangehigh, p->signal, p->afc, | ||
373 | p->rxsubchans, p->audmode); | ||
374 | } | ||
375 | |||
376 | static void v4l_print_frequency(const void *arg, bool write_only) | ||
377 | { | ||
378 | const struct v4l2_frequency *p = arg; | ||
379 | |||
380 | pr_cont("tuner=%u, type=%u, frequency=%u\n", | ||
381 | p->tuner, p->type, p->frequency); | ||
382 | } | ||
383 | |||
384 | static void v4l_print_standard(const void *arg, bool write_only) | ||
385 | { | ||
386 | const struct v4l2_standard *p = arg; | ||
387 | |||
388 | pr_cont("index=%u, id=0x%Lx, name=%s, fps=%u/%u, " | ||
389 | "framelines=%u\n", p->index, | ||
390 | (unsigned long long)p->id, p->name, | ||
391 | p->frameperiod.numerator, | ||
392 | p->frameperiod.denominator, | ||
393 | p->framelines); | ||
394 | } | ||
395 | |||
396 | static void v4l_print_std(const void *arg, bool write_only) | ||
397 | { | ||
398 | pr_cont("std=0x%08Lx\n", *(const long long unsigned *)arg); | ||
399 | } | ||
400 | |||
401 | static void v4l_print_hw_freq_seek(const void *arg, bool write_only) | ||
402 | { | ||
403 | const struct v4l2_hw_freq_seek *p = arg; | ||
404 | |||
405 | pr_cont("tuner=%u, type=%u, seek_upward=%u, wrap_around=%u, spacing=%u\n", | ||
406 | p->tuner, p->type, p->seek_upward, p->wrap_around, p->spacing); | ||
407 | } | ||
408 | |||
409 | static void v4l_print_requestbuffers(const void *arg, bool write_only) | ||
410 | { | ||
411 | const struct v4l2_requestbuffers *p = arg; | ||
412 | |||
413 | pr_cont("count=%d, type=%s, memory=%s\n", | ||
414 | p->count, | ||
415 | prt_names(p->type, v4l2_type_names), | ||
416 | prt_names(p->memory, v4l2_memory_names)); | ||
417 | } | ||
418 | |||
419 | static void v4l_print_buffer(const void *arg, bool write_only) | ||
420 | { | ||
421 | const struct v4l2_buffer *p = arg; | ||
422 | const struct v4l2_timecode *tc = &p->timecode; | ||
423 | const struct v4l2_plane *plane; | ||
424 | int i; | ||
425 | |||
426 | pr_cont("%02ld:%02d:%02d.%08ld index=%d, type=%s, " | ||
427 | "flags=0x%08x, field=%s, sequence=%d, memory=%s", | ||
428 | p->timestamp.tv_sec / 3600, | ||
429 | (int)(p->timestamp.tv_sec / 60) % 60, | ||
430 | (int)(p->timestamp.tv_sec % 60), | ||
431 | (long)p->timestamp.tv_usec, | ||
432 | p->index, | ||
433 | prt_names(p->type, v4l2_type_names), | ||
434 | p->flags, prt_names(p->field, v4l2_field_names), | ||
435 | p->sequence, prt_names(p->memory, v4l2_memory_names)); | ||
436 | |||
437 | if (V4L2_TYPE_IS_MULTIPLANAR(p->type) && p->m.planes) { | ||
438 | pr_cont("\n"); | ||
439 | for (i = 0; i < p->length; ++i) { | ||
440 | plane = &p->m.planes[i]; | ||
441 | printk(KERN_DEBUG | ||
442 | "plane %d: bytesused=%d, data_offset=0x%08x " | ||
443 | "offset/userptr=0x%lx, length=%d\n", | ||
444 | i, plane->bytesused, plane->data_offset, | ||
445 | plane->m.userptr, plane->length); | ||
446 | } | ||
447 | } else { | ||
448 | pr_cont("bytesused=%d, offset/userptr=0x%lx, length=%d\n", | ||
449 | p->bytesused, p->m.userptr, p->length); | ||
450 | } | ||
451 | |||
452 | printk(KERN_DEBUG "timecode=%02d:%02d:%02d type=%d, " | ||
453 | "flags=0x%08x, frames=%d, userbits=0x%08x\n", | ||
454 | tc->hours, tc->minutes, tc->seconds, | ||
455 | tc->type, tc->flags, tc->frames, *(__u32 *)tc->userbits); | ||
456 | } | ||
457 | |||
458 | static void v4l_print_create_buffers(const void *arg, bool write_only) | ||
459 | { | ||
460 | const struct v4l2_create_buffers *p = arg; | ||
461 | |||
462 | pr_cont("index=%d, count=%d, memory=%s, ", | ||
463 | p->index, p->count, | ||
464 | prt_names(p->memory, v4l2_memory_names)); | ||
465 | v4l_print_format(&p->format, write_only); | ||
466 | } | ||
467 | |||
468 | static void v4l_print_streamparm(const void *arg, bool write_only) | ||
469 | { | ||
470 | const struct v4l2_streamparm *p = arg; | ||
471 | |||
472 | pr_cont("type=%s", prt_names(p->type, v4l2_type_names)); | ||
473 | |||
474 | if (p->type == V4L2_BUF_TYPE_VIDEO_CAPTURE || | ||
475 | p->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) { | ||
476 | const struct v4l2_captureparm *c = &p->parm.capture; | ||
477 | |||
478 | pr_cont(", capability=0x%x, capturemode=0x%x, timeperframe=%d/%d, " | ||
479 | "extendedmode=%d, readbuffers=%d\n", | ||
480 | c->capability, c->capturemode, | ||
481 | c->timeperframe.numerator, c->timeperframe.denominator, | ||
482 | c->extendedmode, c->readbuffers); | ||
483 | } else if (p->type == V4L2_BUF_TYPE_VIDEO_OUTPUT || | ||
484 | p->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) { | ||
485 | const struct v4l2_outputparm *c = &p->parm.output; | ||
486 | |||
487 | pr_cont(", capability=0x%x, outputmode=0x%x, timeperframe=%d/%d, " | ||
488 | "extendedmode=%d, writebuffers=%d\n", | ||
489 | c->capability, c->outputmode, | ||
490 | c->timeperframe.numerator, c->timeperframe.denominator, | ||
491 | c->extendedmode, c->writebuffers); | ||
492 | } | ||
493 | } | ||
494 | |||
495 | static void v4l_print_queryctrl(const void *arg, bool write_only) | ||
496 | { | ||
497 | const struct v4l2_queryctrl *p = arg; | ||
498 | |||
499 | pr_cont("id=0x%x, type=%d, name=%s, min/max=%d/%d, " | ||
500 | "step=%d, default=%d, flags=0x%08x\n", | ||
501 | p->id, p->type, p->name, | ||
502 | p->minimum, p->maximum, | ||
503 | p->step, p->default_value, p->flags); | ||
504 | } | ||
505 | |||
506 | static void v4l_print_querymenu(const void *arg, bool write_only) | ||
507 | { | ||
508 | const struct v4l2_querymenu *p = arg; | ||
509 | |||
510 | pr_cont("id=0x%x, index=%d\n", p->id, p->index); | ||
511 | } | ||
512 | |||
513 | static void v4l_print_control(const void *arg, bool write_only) | ||
514 | { | ||
515 | const struct v4l2_control *p = arg; | ||
516 | |||
517 | pr_cont("id=0x%x, value=%d\n", p->id, p->value); | ||
518 | } | ||
519 | |||
520 | static void v4l_print_ext_controls(const void *arg, bool write_only) | ||
521 | { | ||
522 | const struct v4l2_ext_controls *p = arg; | ||
523 | int i; | ||
524 | |||
525 | pr_cont("class=0x%x, count=%d, error_idx=%d", | ||
526 | p->ctrl_class, p->count, p->error_idx); | ||
527 | for (i = 0; i < p->count; i++) { | ||
528 | if (p->controls[i].size) | ||
529 | pr_cont(", id/val=0x%x/0x%x", | ||
530 | p->controls[i].id, p->controls[i].value); | ||
531 | else | ||
532 | pr_cont(", id/size=0x%x/%u", | ||
533 | p->controls[i].id, p->controls[i].size); | ||
534 | } | ||
535 | pr_cont("\n"); | ||
536 | } | ||
537 | |||
538 | static void v4l_print_cropcap(const void *arg, bool write_only) | ||
539 | { | ||
540 | const struct v4l2_cropcap *p = arg; | ||
541 | |||
542 | pr_cont("type=%s, bounds wxh=%dx%d, x,y=%d,%d, " | ||
543 | "defrect wxh=%dx%d, x,y=%d,%d\n, " | ||
544 | "pixelaspect %d/%d\n", | ||
545 | prt_names(p->type, v4l2_type_names), | ||
546 | p->bounds.width, p->bounds.height, | ||
547 | p->bounds.left, p->bounds.top, | ||
548 | p->defrect.width, p->defrect.height, | ||
549 | p->defrect.left, p->defrect.top, | ||
550 | p->pixelaspect.numerator, p->pixelaspect.denominator); | ||
551 | } | ||
552 | |||
553 | static void v4l_print_crop(const void *arg, bool write_only) | ||
554 | { | ||
555 | const struct v4l2_crop *p = arg; | ||
556 | |||
557 | pr_cont("type=%s, wxh=%dx%d, x,y=%d,%d\n", | ||
558 | prt_names(p->type, v4l2_type_names), | ||
559 | p->c.width, p->c.height, | ||
560 | p->c.left, p->c.top); | ||
561 | } | ||
562 | |||
563 | static void v4l_print_selection(const void *arg, bool write_only) | ||
564 | { | ||
565 | const struct v4l2_selection *p = arg; | ||
566 | |||
567 | pr_cont("type=%s, target=%d, flags=0x%x, wxh=%dx%d, x,y=%d,%d\n", | ||
568 | prt_names(p->type, v4l2_type_names), | ||
569 | p->target, p->flags, | ||
570 | p->r.width, p->r.height, p->r.left, p->r.top); | ||
571 | } | ||
572 | |||
573 | static void v4l_print_jpegcompression(const void *arg, bool write_only) | ||
574 | { | ||
575 | const struct v4l2_jpegcompression *p = arg; | ||
576 | |||
577 | pr_cont("quality=%d, APPn=%d, APP_len=%d, " | ||
578 | "COM_len=%d, jpeg_markers=0x%x\n", | ||
579 | p->quality, p->APPn, p->APP_len, | ||
580 | p->COM_len, p->jpeg_markers); | ||
581 | } | ||
582 | |||
583 | static void v4l_print_enc_idx(const void *arg, bool write_only) | ||
584 | { | ||
585 | const struct v4l2_enc_idx *p = arg; | ||
586 | |||
587 | pr_cont("entries=%d, entries_cap=%d\n", | ||
588 | p->entries, p->entries_cap); | ||
589 | } | ||
590 | |||
591 | static void v4l_print_encoder_cmd(const void *arg, bool write_only) | ||
592 | { | ||
593 | const struct v4l2_encoder_cmd *p = arg; | ||
594 | |||
595 | pr_cont("cmd=%d, flags=0x%x\n", | ||
596 | p->cmd, p->flags); | ||
597 | } | ||
598 | |||
599 | static void v4l_print_decoder_cmd(const void *arg, bool write_only) | ||
600 | { | ||
601 | const struct v4l2_decoder_cmd *p = arg; | ||
602 | |||
603 | pr_cont("cmd=%d, flags=0x%x\n", p->cmd, p->flags); | ||
604 | |||
605 | if (p->cmd == V4L2_DEC_CMD_START) | ||
606 | pr_info("speed=%d, format=%u\n", | ||
607 | p->start.speed, p->start.format); | ||
608 | else if (p->cmd == V4L2_DEC_CMD_STOP) | ||
609 | pr_info("pts=%llu\n", p->stop.pts); | ||
610 | } | ||
611 | |||
612 | static void v4l_print_dbg_chip_ident(const void *arg, bool write_only) | ||
613 | { | ||
614 | const struct v4l2_dbg_chip_ident *p = arg; | ||
615 | |||
616 | pr_cont("type=%u, ", p->match.type); | ||
617 | if (p->match.type == V4L2_CHIP_MATCH_I2C_DRIVER) | ||
618 | pr_cont("name=%s, ", p->match.name); | ||
619 | else | ||
620 | pr_cont("addr=%u, ", p->match.addr); | ||
621 | pr_cont("chip_ident=%u, revision=0x%x\n", | ||
622 | p->ident, p->revision); | ||
623 | } | ||
624 | |||
625 | static void v4l_print_dbg_register(const void *arg, bool write_only) | ||
626 | { | ||
627 | const struct v4l2_dbg_register *p = arg; | ||
628 | |||
629 | pr_cont("type=%u, ", p->match.type); | ||
630 | if (p->match.type == V4L2_CHIP_MATCH_I2C_DRIVER) | ||
631 | pr_cont("name=%s, ", p->match.name); | ||
632 | else | ||
633 | pr_cont("addr=%u, ", p->match.addr); | ||
634 | pr_cont("reg=0x%llx, val=0x%llx\n", | ||
635 | p->reg, p->val); | ||
636 | } | ||
637 | |||
638 | static void v4l_print_dv_enum_presets(const void *arg, bool write_only) | ||
639 | { | ||
640 | const struct v4l2_dv_enum_preset *p = arg; | ||
641 | |||
642 | pr_cont("index=%u, preset=%u, name=%s, width=%u, height=%u\n", | ||
643 | p->index, p->preset, p->name, p->width, p->height); | ||
644 | } | ||
645 | |||
646 | static void v4l_print_dv_preset(const void *arg, bool write_only) | ||
647 | { | ||
648 | const struct v4l2_dv_preset *p = arg; | ||
649 | |||
650 | pr_cont("preset=%u\n", p->preset); | ||
651 | } | ||
652 | |||
653 | static void v4l_print_dv_timings(const void *arg, bool write_only) | ||
654 | { | ||
655 | const struct v4l2_dv_timings *p = arg; | ||
656 | |||
657 | switch (p->type) { | ||
658 | case V4L2_DV_BT_656_1120: | ||
659 | pr_cont("type=bt-656/1120, interlaced=%u, " | ||
660 | "pixelclock=%llu, " | ||
661 | "width=%u, height=%u, polarities=0x%x, " | ||
662 | "hfrontporch=%u, hsync=%u, " | ||
663 | "hbackporch=%u, vfrontporch=%u, " | ||
664 | "vsync=%u, vbackporch=%u, " | ||
665 | "il_vfrontporch=%u, il_vsync=%u, " | ||
666 | "il_vbackporch=%u, standards=0x%x, flags=0x%x\n", | ||
667 | p->bt.interlaced, p->bt.pixelclock, | ||
668 | p->bt.width, p->bt.height, | ||
669 | p->bt.polarities, p->bt.hfrontporch, | ||
670 | p->bt.hsync, p->bt.hbackporch, | ||
671 | p->bt.vfrontporch, p->bt.vsync, | ||
672 | p->bt.vbackporch, p->bt.il_vfrontporch, | ||
673 | p->bt.il_vsync, p->bt.il_vbackporch, | ||
674 | p->bt.standards, p->bt.flags); | ||
675 | break; | ||
676 | default: | ||
677 | pr_cont("type=%d\n", p->type); | ||
678 | break; | ||
679 | } | ||
680 | } | ||
681 | |||
682 | static void v4l_print_enum_dv_timings(const void *arg, bool write_only) | ||
683 | { | ||
684 | const struct v4l2_enum_dv_timings *p = arg; | ||
685 | |||
686 | pr_cont("index=%u, ", p->index); | ||
687 | v4l_print_dv_timings(&p->timings, write_only); | ||
688 | } | ||
689 | |||
690 | static void v4l_print_dv_timings_cap(const void *arg, bool write_only) | ||
691 | { | ||
692 | const struct v4l2_dv_timings_cap *p = arg; | ||
693 | |||
694 | switch (p->type) { | ||
695 | case V4L2_DV_BT_656_1120: | ||
696 | pr_cont("type=bt-656/1120, width=%u-%u, height=%u-%u, " | ||
697 | "pixelclock=%llu-%llu, standards=0x%x, capabilities=0x%x\n", | ||
698 | p->bt.min_width, p->bt.max_width, | ||
699 | p->bt.min_height, p->bt.max_height, | ||
700 | p->bt.min_pixelclock, p->bt.max_pixelclock, | ||
701 | p->bt.standards, p->bt.capabilities); | ||
702 | break; | ||
703 | default: | ||
704 | pr_cont("type=%u\n", p->type); | ||
705 | break; | ||
706 | } | ||
707 | } | ||
708 | |||
709 | static void v4l_print_frmsizeenum(const void *arg, bool write_only) | ||
710 | { | ||
711 | const struct v4l2_frmsizeenum *p = arg; | ||
712 | |||
713 | pr_cont("index=%u, pixelformat=%c%c%c%c, type=%u", | ||
714 | p->index, | ||
715 | (p->pixel_format & 0xff), | ||
716 | (p->pixel_format >> 8) & 0xff, | ||
717 | (p->pixel_format >> 16) & 0xff, | ||
718 | (p->pixel_format >> 24) & 0xff, | ||
719 | p->type); | ||
720 | switch (p->type) { | ||
721 | case V4L2_FRMSIZE_TYPE_DISCRETE: | ||
722 | pr_cont(" wxh=%ux%u\n", | ||
723 | p->discrete.width, p->discrete.height); | ||
724 | break; | ||
725 | case V4L2_FRMSIZE_TYPE_STEPWISE: | ||
726 | pr_cont(" min=%ux%u, max=%ux%u, step=%ux%u\n", | ||
727 | p->stepwise.min_width, p->stepwise.min_height, | ||
728 | p->stepwise.step_width, p->stepwise.step_height, | ||
729 | p->stepwise.max_width, p->stepwise.max_height); | ||
730 | break; | ||
731 | case V4L2_FRMSIZE_TYPE_CONTINUOUS: | ||
732 | /* fall through */ | ||
733 | default: | ||
734 | pr_cont("\n"); | ||
735 | break; | ||
736 | } | ||
737 | } | ||
738 | |||
739 | static void v4l_print_frmivalenum(const void *arg, bool write_only) | ||
740 | { | ||
741 | const struct v4l2_frmivalenum *p = arg; | ||
742 | |||
743 | pr_cont("index=%u, pixelformat=%c%c%c%c, wxh=%ux%u, type=%u", | ||
744 | p->index, | ||
745 | (p->pixel_format & 0xff), | ||
746 | (p->pixel_format >> 8) & 0xff, | ||
747 | (p->pixel_format >> 16) & 0xff, | ||
748 | (p->pixel_format >> 24) & 0xff, | ||
749 | p->width, p->height, p->type); | ||
750 | switch (p->type) { | ||
751 | case V4L2_FRMIVAL_TYPE_DISCRETE: | ||
752 | pr_cont(" fps=%d/%d\n", | ||
753 | p->discrete.numerator, | ||
754 | p->discrete.denominator); | ||
755 | break; | ||
756 | case V4L2_FRMIVAL_TYPE_STEPWISE: | ||
757 | pr_cont(" min=%d/%d, max=%d/%d, step=%d/%d\n", | ||
758 | p->stepwise.min.numerator, | ||
759 | p->stepwise.min.denominator, | ||
760 | p->stepwise.max.numerator, | ||
761 | p->stepwise.max.denominator, | ||
762 | p->stepwise.step.numerator, | ||
763 | p->stepwise.step.denominator); | ||
764 | break; | ||
765 | case V4L2_FRMIVAL_TYPE_CONTINUOUS: | ||
766 | /* fall through */ | ||
767 | default: | ||
768 | pr_cont("\n"); | ||
769 | break; | ||
770 | } | ||
771 | } | ||
772 | |||
773 | static void v4l_print_event(const void *arg, bool write_only) | ||
774 | { | ||
775 | const struct v4l2_event *p = arg; | ||
776 | const struct v4l2_event_ctrl *c; | ||
777 | |||
778 | pr_cont("type=0x%x, pending=%u, sequence=%u, id=%u, " | ||
779 | "timestamp=%lu.%9.9lu\n", | ||
780 | p->type, p->pending, p->sequence, p->id, | ||
781 | p->timestamp.tv_sec, p->timestamp.tv_nsec); | ||
782 | switch (p->type) { | ||
783 | case V4L2_EVENT_VSYNC: | ||
784 | printk(KERN_DEBUG "field=%s\n", | ||
785 | prt_names(p->u.vsync.field, v4l2_field_names)); | ||
786 | break; | ||
787 | case V4L2_EVENT_CTRL: | ||
788 | c = &p->u.ctrl; | ||
789 | printk(KERN_DEBUG "changes=0x%x, type=%u, ", | ||
790 | c->changes, c->type); | ||
791 | if (c->type == V4L2_CTRL_TYPE_INTEGER64) | ||
792 | pr_cont("value64=%lld, ", c->value64); | ||
793 | else | ||
794 | pr_cont("value=%d, ", c->value); | ||
795 | pr_cont("flags=0x%x, minimum=%d, maximum=%d, step=%d," | ||
796 | " default_value=%d\n", | ||
797 | c->flags, c->minimum, c->maximum, | ||
798 | c->step, c->default_value); | ||
799 | break; | ||
800 | case V4L2_EVENT_FRAME_SYNC: | ||
801 | pr_cont("frame_sequence=%u\n", | ||
802 | p->u.frame_sync.frame_sequence); | ||
803 | break; | ||
804 | } | ||
805 | } | ||
806 | |||
807 | static void v4l_print_event_subscription(const void *arg, bool write_only) | ||
808 | { | ||
809 | const struct v4l2_event_subscription *p = arg; | ||
810 | |||
811 | pr_cont("type=0x%x, id=0x%x, flags=0x%x\n", | ||
812 | p->type, p->id, p->flags); | ||
813 | } | ||
814 | |||
815 | static void v4l_print_sliced_vbi_cap(const void *arg, bool write_only) | ||
816 | { | ||
817 | const struct v4l2_sliced_vbi_cap *p = arg; | ||
818 | int i; | ||
819 | |||
820 | pr_cont("type=%s, service_set=0x%08x\n", | ||
821 | prt_names(p->type, v4l2_type_names), p->service_set); | ||
822 | for (i = 0; i < 24; i++) | ||
823 | printk(KERN_DEBUG "line[%02u]=0x%04x, 0x%04x\n", i, | ||
824 | p->service_lines[0][i], | ||
825 | p->service_lines[1][i]); | ||
826 | } | ||
827 | |||
828 | static void v4l_print_freq_band(const void *arg, bool write_only) | ||
829 | { | ||
830 | const struct v4l2_frequency_band *p = arg; | ||
831 | |||
832 | pr_cont("tuner=%u, type=%u, index=%u, capability=0x%x, " | ||
833 | "rangelow=%u, rangehigh=%u, modulation=0x%x\n", | ||
834 | p->tuner, p->type, p->index, | ||
835 | p->capability, p->rangelow, | ||
836 | p->rangehigh, p->modulation); | ||
837 | } | ||
838 | |||
839 | static void v4l_print_u32(const void *arg, bool write_only) | ||
840 | { | ||
841 | pr_cont("value=%u\n", *(const u32 *)arg); | ||
842 | } | ||
843 | |||
844 | static void v4l_print_newline(const void *arg, bool write_only) | ||
845 | { | ||
846 | pr_cont("\n"); | ||
847 | } | ||
848 | |||
849 | static void v4l_print_default(const void *arg, bool write_only) | ||
850 | { | ||
851 | pr_cont("driver-specific ioctl\n"); | ||
852 | } | ||
853 | |||
854 | static int check_ext_ctrls(struct v4l2_ext_controls *c, int allow_priv) | ||
855 | { | ||
856 | __u32 i; | ||
857 | |||
858 | /* zero the reserved fields */ | ||
859 | c->reserved[0] = c->reserved[1] = 0; | ||
860 | for (i = 0; i < c->count; i++) | ||
861 | c->controls[i].reserved2[0] = 0; | ||
862 | |||
863 | /* V4L2_CID_PRIVATE_BASE cannot be used as control class | ||
864 | when using extended controls. | ||
865 | Only when passed in through VIDIOC_G_CTRL and VIDIOC_S_CTRL | ||
866 | is it allowed for backwards compatibility. | ||
867 | */ | ||
868 | if (!allow_priv && c->ctrl_class == V4L2_CID_PRIVATE_BASE) | ||
869 | return 0; | ||
870 | /* Check that all controls are from the same control class. */ | ||
871 | for (i = 0; i < c->count; i++) { | ||
872 | if (V4L2_CTRL_ID2CLASS(c->controls[i].id) != c->ctrl_class) { | ||
873 | c->error_idx = i; | ||
874 | return 0; | ||
875 | } | ||
876 | } | ||
877 | return 1; | ||
878 | } | ||
879 | |||
880 | static int check_fmt(const struct v4l2_ioctl_ops *ops, enum v4l2_buf_type type) | ||
881 | { | ||
882 | if (ops == NULL) | ||
883 | return -EINVAL; | ||
884 | |||
885 | switch (type) { | ||
886 | case V4L2_BUF_TYPE_VIDEO_CAPTURE: | ||
887 | if (ops->vidioc_g_fmt_vid_cap || | ||
888 | ops->vidioc_g_fmt_vid_cap_mplane) | ||
889 | return 0; | ||
890 | break; | ||
891 | case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE: | ||
892 | if (ops->vidioc_g_fmt_vid_cap_mplane) | ||
893 | return 0; | ||
894 | break; | ||
895 | case V4L2_BUF_TYPE_VIDEO_OVERLAY: | ||
896 | if (ops->vidioc_g_fmt_vid_overlay) | ||
897 | return 0; | ||
898 | break; | ||
899 | case V4L2_BUF_TYPE_VIDEO_OUTPUT: | ||
900 | if (ops->vidioc_g_fmt_vid_out || | ||
901 | ops->vidioc_g_fmt_vid_out_mplane) | ||
902 | return 0; | ||
903 | break; | ||
904 | case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE: | ||
905 | if (ops->vidioc_g_fmt_vid_out_mplane) | ||
906 | return 0; | ||
907 | break; | ||
908 | case V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY: | ||
909 | if (ops->vidioc_g_fmt_vid_out_overlay) | ||
910 | return 0; | ||
911 | break; | ||
912 | case V4L2_BUF_TYPE_VBI_CAPTURE: | ||
913 | if (ops->vidioc_g_fmt_vbi_cap) | ||
914 | return 0; | ||
915 | break; | ||
916 | case V4L2_BUF_TYPE_VBI_OUTPUT: | ||
917 | if (ops->vidioc_g_fmt_vbi_out) | ||
918 | return 0; | ||
919 | break; | ||
920 | case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE: | ||
921 | if (ops->vidioc_g_fmt_sliced_vbi_cap) | ||
922 | return 0; | ||
923 | break; | ||
924 | case V4L2_BUF_TYPE_SLICED_VBI_OUTPUT: | ||
925 | if (ops->vidioc_g_fmt_sliced_vbi_out) | ||
926 | return 0; | ||
927 | break; | ||
928 | case V4L2_BUF_TYPE_PRIVATE: | ||
929 | if (ops->vidioc_g_fmt_type_private) | ||
930 | return 0; | ||
931 | break; | ||
932 | } | ||
933 | return -EINVAL; | ||
934 | } | ||
935 | |||
936 | static int v4l_querycap(const struct v4l2_ioctl_ops *ops, | ||
937 | struct file *file, void *fh, void *arg) | ||
938 | { | ||
939 | struct v4l2_capability *cap = (struct v4l2_capability *)arg; | ||
940 | |||
941 | cap->version = LINUX_VERSION_CODE; | ||
942 | return ops->vidioc_querycap(file, fh, cap); | ||
943 | } | ||
944 | |||
945 | static int v4l_s_input(const struct v4l2_ioctl_ops *ops, | ||
946 | struct file *file, void *fh, void *arg) | ||
947 | { | ||
948 | return ops->vidioc_s_input(file, fh, *(unsigned int *)arg); | ||
949 | } | ||
950 | |||
951 | static int v4l_s_output(const struct v4l2_ioctl_ops *ops, | ||
952 | struct file *file, void *fh, void *arg) | ||
953 | { | ||
954 | return ops->vidioc_s_output(file, fh, *(unsigned int *)arg); | ||
955 | } | ||
956 | |||
957 | static int v4l_g_priority(const struct v4l2_ioctl_ops *ops, | ||
958 | struct file *file, void *fh, void *arg) | ||
959 | { | ||
960 | struct video_device *vfd; | ||
961 | u32 *p = arg; | ||
962 | |||
963 | if (ops->vidioc_g_priority) | ||
964 | return ops->vidioc_g_priority(file, fh, arg); | ||
965 | vfd = video_devdata(file); | ||
966 | *p = v4l2_prio_max(&vfd->v4l2_dev->prio); | ||
967 | return 0; | ||
968 | } | ||
969 | |||
970 | static int v4l_s_priority(const struct v4l2_ioctl_ops *ops, | ||
971 | struct file *file, void *fh, void *arg) | ||
972 | { | ||
973 | struct video_device *vfd; | ||
974 | struct v4l2_fh *vfh; | ||
975 | u32 *p = arg; | ||
976 | |||
977 | if (ops->vidioc_s_priority) | ||
978 | return ops->vidioc_s_priority(file, fh, *p); | ||
979 | vfd = video_devdata(file); | ||
980 | vfh = file->private_data; | ||
981 | return v4l2_prio_change(&vfd->v4l2_dev->prio, &vfh->prio, *p); | ||
982 | } | ||
983 | |||
984 | static int v4l_enuminput(const struct v4l2_ioctl_ops *ops, | ||
985 | struct file *file, void *fh, void *arg) | ||
986 | { | ||
987 | struct v4l2_input *p = arg; | ||
988 | |||
989 | /* | ||
990 | * We set the flags for CAP_PRESETS, CAP_CUSTOM_TIMINGS & | ||
991 | * CAP_STD here based on ioctl handler provided by the | ||
992 | * driver. If the driver doesn't support these | ||
993 | * for a specific input, it must override these flags. | ||
994 | */ | ||
995 | if (ops->vidioc_s_std) | ||
996 | p->capabilities |= V4L2_IN_CAP_STD; | ||
997 | if (ops->vidioc_s_dv_preset) | ||
998 | p->capabilities |= V4L2_IN_CAP_PRESETS; | ||
999 | if (ops->vidioc_s_dv_timings) | ||
1000 | p->capabilities |= V4L2_IN_CAP_CUSTOM_TIMINGS; | ||
1001 | |||
1002 | return ops->vidioc_enum_input(file, fh, p); | ||
1003 | } | ||
1004 | |||
1005 | static int v4l_enumoutput(const struct v4l2_ioctl_ops *ops, | ||
1006 | struct file *file, void *fh, void *arg) | ||
1007 | { | ||
1008 | struct v4l2_output *p = arg; | ||
1009 | |||
1010 | /* | ||
1011 | * We set the flags for CAP_PRESETS, CAP_CUSTOM_TIMINGS & | ||
1012 | * CAP_STD here based on ioctl handler provided by the | ||
1013 | * driver. If the driver doesn't support these | ||
1014 | * for a specific output, it must override these flags. | ||
1015 | */ | ||
1016 | if (ops->vidioc_s_std) | ||
1017 | p->capabilities |= V4L2_OUT_CAP_STD; | ||
1018 | if (ops->vidioc_s_dv_preset) | ||
1019 | p->capabilities |= V4L2_OUT_CAP_PRESETS; | ||
1020 | if (ops->vidioc_s_dv_timings) | ||
1021 | p->capabilities |= V4L2_OUT_CAP_CUSTOM_TIMINGS; | ||
1022 | |||
1023 | return ops->vidioc_enum_output(file, fh, p); | ||
1024 | } | ||
1025 | |||
1026 | static int v4l_enum_fmt(const struct v4l2_ioctl_ops *ops, | ||
1027 | struct file *file, void *fh, void *arg) | ||
1028 | { | ||
1029 | struct v4l2_fmtdesc *p = arg; | ||
1030 | |||
1031 | switch (p->type) { | ||
1032 | case V4L2_BUF_TYPE_VIDEO_CAPTURE: | ||
1033 | if (unlikely(!ops->vidioc_enum_fmt_vid_cap)) | ||
1034 | break; | ||
1035 | return ops->vidioc_enum_fmt_vid_cap(file, fh, arg); | ||
1036 | case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE: | ||
1037 | if (unlikely(!ops->vidioc_enum_fmt_vid_cap_mplane)) | ||
1038 | break; | ||
1039 | return ops->vidioc_enum_fmt_vid_cap_mplane(file, fh, arg); | ||
1040 | case V4L2_BUF_TYPE_VIDEO_OVERLAY: | ||
1041 | if (unlikely(!ops->vidioc_enum_fmt_vid_overlay)) | ||
1042 | break; | ||
1043 | return ops->vidioc_enum_fmt_vid_overlay(file, fh, arg); | ||
1044 | case V4L2_BUF_TYPE_VIDEO_OUTPUT: | ||
1045 | if (unlikely(!ops->vidioc_enum_fmt_vid_out)) | ||
1046 | break; | ||
1047 | return ops->vidioc_enum_fmt_vid_out(file, fh, arg); | ||
1048 | case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE: | ||
1049 | if (unlikely(!ops->vidioc_enum_fmt_vid_out_mplane)) | ||
1050 | break; | ||
1051 | return ops->vidioc_enum_fmt_vid_out_mplane(file, fh, arg); | ||
1052 | case V4L2_BUF_TYPE_PRIVATE: | ||
1053 | if (unlikely(!ops->vidioc_enum_fmt_type_private)) | ||
1054 | break; | ||
1055 | return ops->vidioc_enum_fmt_type_private(file, fh, arg); | ||
1056 | } | ||
1057 | return -EINVAL; | ||
1058 | } | ||
1059 | |||
1060 | static int v4l_g_fmt(const struct v4l2_ioctl_ops *ops, | ||
1061 | struct file *file, void *fh, void *arg) | ||
1062 | { | ||
1063 | struct v4l2_format *p = arg; | ||
1064 | |||
1065 | switch (p->type) { | ||
1066 | case V4L2_BUF_TYPE_VIDEO_CAPTURE: | ||
1067 | if (unlikely(!ops->vidioc_g_fmt_vid_cap)) | ||
1068 | break; | ||
1069 | return ops->vidioc_g_fmt_vid_cap(file, fh, arg); | ||
1070 | case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE: | ||
1071 | if (unlikely(!ops->vidioc_g_fmt_vid_cap_mplane)) | ||
1072 | break; | ||
1073 | return ops->vidioc_g_fmt_vid_cap_mplane(file, fh, arg); | ||
1074 | case V4L2_BUF_TYPE_VIDEO_OVERLAY: | ||
1075 | if (unlikely(!ops->vidioc_g_fmt_vid_overlay)) | ||
1076 | break; | ||
1077 | return ops->vidioc_g_fmt_vid_overlay(file, fh, arg); | ||
1078 | case V4L2_BUF_TYPE_VIDEO_OUTPUT: | ||
1079 | if (unlikely(!ops->vidioc_g_fmt_vid_out)) | ||
1080 | break; | ||
1081 | return ops->vidioc_g_fmt_vid_out(file, fh, arg); | ||
1082 | case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE: | ||
1083 | if (unlikely(!ops->vidioc_g_fmt_vid_out_mplane)) | ||
1084 | break; | ||
1085 | return ops->vidioc_g_fmt_vid_out_mplane(file, fh, arg); | ||
1086 | case V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY: | ||
1087 | if (unlikely(!ops->vidioc_g_fmt_vid_out_overlay)) | ||
1088 | break; | ||
1089 | return ops->vidioc_g_fmt_vid_out_overlay(file, fh, arg); | ||
1090 | case V4L2_BUF_TYPE_VBI_CAPTURE: | ||
1091 | if (unlikely(!ops->vidioc_g_fmt_vbi_cap)) | ||
1092 | break; | ||
1093 | return ops->vidioc_g_fmt_vbi_cap(file, fh, arg); | ||
1094 | case V4L2_BUF_TYPE_VBI_OUTPUT: | ||
1095 | if (unlikely(!ops->vidioc_g_fmt_vbi_out)) | ||
1096 | break; | ||
1097 | return ops->vidioc_g_fmt_vbi_out(file, fh, arg); | ||
1098 | case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE: | ||
1099 | if (unlikely(!ops->vidioc_g_fmt_sliced_vbi_cap)) | ||
1100 | break; | ||
1101 | return ops->vidioc_g_fmt_sliced_vbi_cap(file, fh, arg); | ||
1102 | case V4L2_BUF_TYPE_SLICED_VBI_OUTPUT: | ||
1103 | if (unlikely(!ops->vidioc_g_fmt_sliced_vbi_out)) | ||
1104 | break; | ||
1105 | return ops->vidioc_g_fmt_sliced_vbi_out(file, fh, arg); | ||
1106 | case V4L2_BUF_TYPE_PRIVATE: | ||
1107 | if (unlikely(!ops->vidioc_g_fmt_type_private)) | ||
1108 | break; | ||
1109 | return ops->vidioc_g_fmt_type_private(file, fh, arg); | ||
1110 | } | ||
1111 | return -EINVAL; | ||
1112 | } | ||
1113 | |||
1114 | static int v4l_s_fmt(const struct v4l2_ioctl_ops *ops, | ||
1115 | struct file *file, void *fh, void *arg) | ||
1116 | { | ||
1117 | struct v4l2_format *p = arg; | ||
1118 | |||
1119 | switch (p->type) { | ||
1120 | case V4L2_BUF_TYPE_VIDEO_CAPTURE: | ||
1121 | if (unlikely(!ops->vidioc_s_fmt_vid_cap)) | ||
1122 | break; | ||
1123 | CLEAR_AFTER_FIELD(p, fmt.pix); | ||
1124 | return ops->vidioc_s_fmt_vid_cap(file, fh, arg); | ||
1125 | case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE: | ||
1126 | if (unlikely(!ops->vidioc_s_fmt_vid_cap_mplane)) | ||
1127 | break; | ||
1128 | CLEAR_AFTER_FIELD(p, fmt.pix_mp); | ||
1129 | return ops->vidioc_s_fmt_vid_cap_mplane(file, fh, arg); | ||
1130 | case V4L2_BUF_TYPE_VIDEO_OVERLAY: | ||
1131 | if (unlikely(!ops->vidioc_s_fmt_vid_overlay)) | ||
1132 | break; | ||
1133 | CLEAR_AFTER_FIELD(p, fmt.win); | ||
1134 | return ops->vidioc_s_fmt_vid_overlay(file, fh, arg); | ||
1135 | case V4L2_BUF_TYPE_VIDEO_OUTPUT: | ||
1136 | if (unlikely(!ops->vidioc_s_fmt_vid_out)) | ||
1137 | break; | ||
1138 | CLEAR_AFTER_FIELD(p, fmt.pix); | ||
1139 | return ops->vidioc_s_fmt_vid_out(file, fh, arg); | ||
1140 | case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE: | ||
1141 | if (unlikely(!ops->vidioc_s_fmt_vid_out_mplane)) | ||
1142 | break; | ||
1143 | CLEAR_AFTER_FIELD(p, fmt.pix_mp); | ||
1144 | return ops->vidioc_s_fmt_vid_out_mplane(file, fh, arg); | ||
1145 | case V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY: | ||
1146 | if (unlikely(!ops->vidioc_s_fmt_vid_out_overlay)) | ||
1147 | break; | ||
1148 | CLEAR_AFTER_FIELD(p, fmt.win); | ||
1149 | return ops->vidioc_s_fmt_vid_out_overlay(file, fh, arg); | ||
1150 | case V4L2_BUF_TYPE_VBI_CAPTURE: | ||
1151 | if (unlikely(!ops->vidioc_s_fmt_vbi_cap)) | ||
1152 | break; | ||
1153 | CLEAR_AFTER_FIELD(p, fmt.vbi); | ||
1154 | return ops->vidioc_s_fmt_vbi_cap(file, fh, arg); | ||
1155 | case V4L2_BUF_TYPE_VBI_OUTPUT: | ||
1156 | if (unlikely(!ops->vidioc_s_fmt_vbi_out)) | ||
1157 | break; | ||
1158 | CLEAR_AFTER_FIELD(p, fmt.vbi); | ||
1159 | return ops->vidioc_s_fmt_vbi_out(file, fh, arg); | ||
1160 | case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE: | ||
1161 | if (unlikely(!ops->vidioc_s_fmt_sliced_vbi_cap)) | ||
1162 | break; | ||
1163 | CLEAR_AFTER_FIELD(p, fmt.sliced); | ||
1164 | return ops->vidioc_s_fmt_sliced_vbi_cap(file, fh, arg); | ||
1165 | case V4L2_BUF_TYPE_SLICED_VBI_OUTPUT: | ||
1166 | if (unlikely(!ops->vidioc_s_fmt_sliced_vbi_out)) | ||
1167 | break; | ||
1168 | CLEAR_AFTER_FIELD(p, fmt.sliced); | ||
1169 | return ops->vidioc_s_fmt_sliced_vbi_out(file, fh, arg); | ||
1170 | case V4L2_BUF_TYPE_PRIVATE: | ||
1171 | if (unlikely(!ops->vidioc_s_fmt_type_private)) | ||
1172 | break; | ||
1173 | return ops->vidioc_s_fmt_type_private(file, fh, arg); | ||
1174 | } | ||
1175 | return -EINVAL; | ||
1176 | } | ||
1177 | |||
1178 | static int v4l_try_fmt(const struct v4l2_ioctl_ops *ops, | ||
1179 | struct file *file, void *fh, void *arg) | ||
1180 | { | ||
1181 | struct v4l2_format *p = arg; | ||
1182 | |||
1183 | switch (p->type) { | ||
1184 | case V4L2_BUF_TYPE_VIDEO_CAPTURE: | ||
1185 | if (unlikely(!ops->vidioc_try_fmt_vid_cap)) | ||
1186 | break; | ||
1187 | CLEAR_AFTER_FIELD(p, fmt.pix); | ||
1188 | return ops->vidioc_try_fmt_vid_cap(file, fh, arg); | ||
1189 | case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE: | ||
1190 | if (unlikely(!ops->vidioc_try_fmt_vid_cap_mplane)) | ||
1191 | break; | ||
1192 | CLEAR_AFTER_FIELD(p, fmt.pix_mp); | ||
1193 | return ops->vidioc_try_fmt_vid_cap_mplane(file, fh, arg); | ||
1194 | case V4L2_BUF_TYPE_VIDEO_OVERLAY: | ||
1195 | if (unlikely(!ops->vidioc_try_fmt_vid_overlay)) | ||
1196 | break; | ||
1197 | CLEAR_AFTER_FIELD(p, fmt.win); | ||
1198 | return ops->vidioc_try_fmt_vid_overlay(file, fh, arg); | ||
1199 | case V4L2_BUF_TYPE_VIDEO_OUTPUT: | ||
1200 | if (unlikely(!ops->vidioc_try_fmt_vid_out)) | ||
1201 | break; | ||
1202 | CLEAR_AFTER_FIELD(p, fmt.pix); | ||
1203 | return ops->vidioc_try_fmt_vid_out(file, fh, arg); | ||
1204 | case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE: | ||
1205 | if (unlikely(!ops->vidioc_try_fmt_vid_out_mplane)) | ||
1206 | break; | ||
1207 | CLEAR_AFTER_FIELD(p, fmt.pix_mp); | ||
1208 | return ops->vidioc_try_fmt_vid_out_mplane(file, fh, arg); | ||
1209 | case V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY: | ||
1210 | if (unlikely(!ops->vidioc_try_fmt_vid_out_overlay)) | ||
1211 | break; | ||
1212 | CLEAR_AFTER_FIELD(p, fmt.win); | ||
1213 | return ops->vidioc_try_fmt_vid_out_overlay(file, fh, arg); | ||
1214 | case V4L2_BUF_TYPE_VBI_CAPTURE: | ||
1215 | if (unlikely(!ops->vidioc_try_fmt_vbi_cap)) | ||
1216 | break; | ||
1217 | CLEAR_AFTER_FIELD(p, fmt.vbi); | ||
1218 | return ops->vidioc_try_fmt_vbi_cap(file, fh, arg); | ||
1219 | case V4L2_BUF_TYPE_VBI_OUTPUT: | ||
1220 | if (unlikely(!ops->vidioc_try_fmt_vbi_out)) | ||
1221 | break; | ||
1222 | CLEAR_AFTER_FIELD(p, fmt.vbi); | ||
1223 | return ops->vidioc_try_fmt_vbi_out(file, fh, arg); | ||
1224 | case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE: | ||
1225 | if (unlikely(!ops->vidioc_try_fmt_sliced_vbi_cap)) | ||
1226 | break; | ||
1227 | CLEAR_AFTER_FIELD(p, fmt.sliced); | ||
1228 | return ops->vidioc_try_fmt_sliced_vbi_cap(file, fh, arg); | ||
1229 | case V4L2_BUF_TYPE_SLICED_VBI_OUTPUT: | ||
1230 | if (unlikely(!ops->vidioc_try_fmt_sliced_vbi_out)) | ||
1231 | break; | ||
1232 | CLEAR_AFTER_FIELD(p, fmt.sliced); | ||
1233 | return ops->vidioc_try_fmt_sliced_vbi_out(file, fh, arg); | ||
1234 | case V4L2_BUF_TYPE_PRIVATE: | ||
1235 | if (unlikely(!ops->vidioc_try_fmt_type_private)) | ||
1236 | break; | ||
1237 | return ops->vidioc_try_fmt_type_private(file, fh, arg); | ||
1238 | } | ||
1239 | return -EINVAL; | ||
1240 | } | ||
1241 | |||
1242 | static int v4l_streamon(const struct v4l2_ioctl_ops *ops, | ||
1243 | struct file *file, void *fh, void *arg) | ||
1244 | { | ||
1245 | return ops->vidioc_streamon(file, fh, *(unsigned int *)arg); | ||
1246 | } | ||
1247 | |||
1248 | static int v4l_streamoff(const struct v4l2_ioctl_ops *ops, | ||
1249 | struct file *file, void *fh, void *arg) | ||
1250 | { | ||
1251 | return ops->vidioc_streamoff(file, fh, *(unsigned int *)arg); | ||
1252 | } | ||
1253 | |||
1254 | static int v4l_g_tuner(const struct v4l2_ioctl_ops *ops, | ||
1255 | struct file *file, void *fh, void *arg) | ||
1256 | { | ||
1257 | struct video_device *vfd = video_devdata(file); | ||
1258 | struct v4l2_tuner *p = arg; | ||
1259 | int err; | ||
1260 | |||
1261 | p->type = (vfd->vfl_type == VFL_TYPE_RADIO) ? | ||
1262 | V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV; | ||
1263 | err = ops->vidioc_g_tuner(file, fh, p); | ||
1264 | if (!err) | ||
1265 | p->capability |= V4L2_TUNER_CAP_FREQ_BANDS; | ||
1266 | return err; | ||
1267 | } | ||
1268 | |||
1269 | static int v4l_s_tuner(const struct v4l2_ioctl_ops *ops, | ||
1270 | struct file *file, void *fh, void *arg) | ||
1271 | { | ||
1272 | struct video_device *vfd = video_devdata(file); | ||
1273 | struct v4l2_tuner *p = arg; | ||
1274 | |||
1275 | p->type = (vfd->vfl_type == VFL_TYPE_RADIO) ? | ||
1276 | V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV; | ||
1277 | return ops->vidioc_s_tuner(file, fh, p); | ||
1278 | } | ||
1279 | |||
1280 | static int v4l_g_modulator(const struct v4l2_ioctl_ops *ops, | ||
1281 | struct file *file, void *fh, void *arg) | ||
1282 | { | ||
1283 | struct v4l2_modulator *p = arg; | ||
1284 | int err; | ||
1285 | |||
1286 | err = ops->vidioc_g_modulator(file, fh, p); | ||
1287 | if (!err) | ||
1288 | p->capability |= V4L2_TUNER_CAP_FREQ_BANDS; | ||
1289 | return err; | ||
1290 | } | ||
1291 | |||
1292 | static int v4l_g_frequency(const struct v4l2_ioctl_ops *ops, | ||
1293 | struct file *file, void *fh, void *arg) | ||
1294 | { | ||
1295 | struct video_device *vfd = video_devdata(file); | ||
1296 | struct v4l2_frequency *p = arg; | ||
1297 | |||
1298 | p->type = (vfd->vfl_type == VFL_TYPE_RADIO) ? | ||
1299 | V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV; | ||
1300 | return ops->vidioc_g_frequency(file, fh, p); | ||
1301 | } | ||
1302 | |||
1303 | static int v4l_s_frequency(const struct v4l2_ioctl_ops *ops, | ||
1304 | struct file *file, void *fh, void *arg) | ||
1305 | { | ||
1306 | struct video_device *vfd = video_devdata(file); | ||
1307 | struct v4l2_frequency *p = arg; | ||
1308 | enum v4l2_tuner_type type; | ||
1309 | |||
1310 | type = (vfd->vfl_type == VFL_TYPE_RADIO) ? | ||
1311 | V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV; | ||
1312 | if (p->type != type) | ||
1313 | return -EINVAL; | ||
1314 | return ops->vidioc_s_frequency(file, fh, p); | ||
1315 | } | ||
1316 | |||
1317 | static int v4l_enumstd(const struct v4l2_ioctl_ops *ops, | ||
1318 | struct file *file, void *fh, void *arg) | ||
1319 | { | ||
1320 | struct video_device *vfd = video_devdata(file); | ||
1321 | struct v4l2_standard *p = arg; | ||
1322 | v4l2_std_id id = vfd->tvnorms, curr_id = 0; | ||
1323 | unsigned int index = p->index, i, j = 0; | ||
1324 | const char *descr = ""; | ||
1325 | |||
1326 | /* Return norm array in a canonical way */ | ||
1327 | for (i = 0; i <= index && id; i++) { | ||
1328 | /* last std value in the standards array is 0, so this | ||
1329 | while always ends there since (id & 0) == 0. */ | ||
1330 | while ((id & standards[j].std) != standards[j].std) | ||
1331 | j++; | ||
1332 | curr_id = standards[j].std; | ||
1333 | descr = standards[j].descr; | ||
1334 | j++; | ||
1335 | if (curr_id == 0) | ||
1336 | break; | ||
1337 | if (curr_id != V4L2_STD_PAL && | ||
1338 | curr_id != V4L2_STD_SECAM && | ||
1339 | curr_id != V4L2_STD_NTSC) | ||
1340 | id &= ~curr_id; | ||
1341 | } | ||
1342 | if (i <= index) | ||
1343 | return -EINVAL; | ||
1344 | |||
1345 | v4l2_video_std_construct(p, curr_id, descr); | ||
1346 | return 0; | ||
1347 | } | ||
1348 | |||
1349 | static int v4l_g_std(const struct v4l2_ioctl_ops *ops, | ||
1350 | struct file *file, void *fh, void *arg) | ||
1351 | { | ||
1352 | struct video_device *vfd = video_devdata(file); | ||
1353 | v4l2_std_id *id = arg; | ||
1354 | |||
1355 | /* Calls the specific handler */ | ||
1356 | if (ops->vidioc_g_std) | ||
1357 | return ops->vidioc_g_std(file, fh, arg); | ||
1358 | if (vfd->current_norm) { | ||
1359 | *id = vfd->current_norm; | ||
1360 | return 0; | ||
1361 | } | ||
1362 | return -ENOTTY; | ||
1363 | } | ||
1364 | |||
1365 | static int v4l_s_std(const struct v4l2_ioctl_ops *ops, | ||
1366 | struct file *file, void *fh, void *arg) | ||
1367 | { | ||
1368 | struct video_device *vfd = video_devdata(file); | ||
1369 | v4l2_std_id *id = arg, norm; | ||
1370 | int ret; | ||
1371 | |||
1372 | norm = (*id) & vfd->tvnorms; | ||
1373 | if (vfd->tvnorms && !norm) /* Check if std is supported */ | ||
1374 | return -EINVAL; | ||
1375 | |||
1376 | /* Calls the specific handler */ | ||
1377 | ret = ops->vidioc_s_std(file, fh, &norm); | ||
1378 | |||
1379 | /* Updates standard information */ | ||
1380 | if (ret >= 0) | ||
1381 | vfd->current_norm = norm; | ||
1382 | return ret; | ||
1383 | } | ||
1384 | |||
1385 | static int v4l_querystd(const struct v4l2_ioctl_ops *ops, | ||
1386 | struct file *file, void *fh, void *arg) | ||
1387 | { | ||
1388 | struct video_device *vfd = video_devdata(file); | ||
1389 | v4l2_std_id *p = arg; | ||
1390 | |||
1391 | /* | ||
1392 | * If nothing detected, it should return all supported | ||
1393 | * standard. | ||
1394 | * Drivers just need to mask the std argument, in order | ||
1395 | * to remove the standards that don't apply from the mask. | ||
1396 | * This means that tuners, audio and video decoders can join | ||
1397 | * their efforts to improve the standards detection. | ||
1398 | */ | ||
1399 | *p = vfd->tvnorms; | ||
1400 | return ops->vidioc_querystd(file, fh, arg); | ||
1401 | } | ||
1402 | |||
1403 | static int v4l_s_hw_freq_seek(const struct v4l2_ioctl_ops *ops, | ||
1404 | struct file *file, void *fh, void *arg) | ||
1405 | { | ||
1406 | struct video_device *vfd = video_devdata(file); | ||
1407 | struct v4l2_hw_freq_seek *p = arg; | ||
1408 | enum v4l2_tuner_type type; | ||
1409 | |||
1410 | type = (vfd->vfl_type == VFL_TYPE_RADIO) ? | ||
1411 | V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV; | ||
1412 | if (p->type != type) | ||
1413 | return -EINVAL; | ||
1414 | return ops->vidioc_s_hw_freq_seek(file, fh, p); | ||
1415 | } | ||
1416 | |||
1417 | static int v4l_reqbufs(const struct v4l2_ioctl_ops *ops, | ||
1418 | struct file *file, void *fh, void *arg) | ||
1419 | { | ||
1420 | struct v4l2_requestbuffers *p = arg; | ||
1421 | int ret = check_fmt(ops, p->type); | ||
1422 | |||
1423 | if (ret) | ||
1424 | return ret; | ||
1425 | |||
1426 | if (p->type < V4L2_BUF_TYPE_PRIVATE) | ||
1427 | CLEAR_AFTER_FIELD(p, memory); | ||
1428 | |||
1429 | return ops->vidioc_reqbufs(file, fh, p); | ||
1430 | } | ||
1431 | |||
1432 | static int v4l_querybuf(const struct v4l2_ioctl_ops *ops, | ||
1433 | struct file *file, void *fh, void *arg) | ||
1434 | { | ||
1435 | struct v4l2_buffer *p = arg; | ||
1436 | int ret = check_fmt(ops, p->type); | ||
1437 | |||
1438 | return ret ? ret : ops->vidioc_querybuf(file, fh, p); | ||
1439 | } | ||
1440 | |||
1441 | static int v4l_qbuf(const struct v4l2_ioctl_ops *ops, | ||
1442 | struct file *file, void *fh, void *arg) | ||
1443 | { | ||
1444 | struct v4l2_buffer *p = arg; | ||
1445 | int ret = check_fmt(ops, p->type); | ||
1446 | |||
1447 | return ret ? ret : ops->vidioc_qbuf(file, fh, p); | ||
1448 | } | ||
1449 | |||
1450 | static int v4l_dqbuf(const struct v4l2_ioctl_ops *ops, | ||
1451 | struct file *file, void *fh, void *arg) | ||
1452 | { | ||
1453 | struct v4l2_buffer *p = arg; | ||
1454 | int ret = check_fmt(ops, p->type); | ||
1455 | |||
1456 | return ret ? ret : ops->vidioc_dqbuf(file, fh, p); | ||
1457 | } | ||
1458 | |||
1459 | static int v4l_create_bufs(const struct v4l2_ioctl_ops *ops, | ||
1460 | struct file *file, void *fh, void *arg) | ||
1461 | { | ||
1462 | struct v4l2_create_buffers *create = arg; | ||
1463 | int ret = check_fmt(ops, create->format.type); | ||
1464 | |||
1465 | return ret ? ret : ops->vidioc_create_bufs(file, fh, create); | ||
1466 | } | ||
1467 | |||
1468 | static int v4l_prepare_buf(const struct v4l2_ioctl_ops *ops, | ||
1469 | struct file *file, void *fh, void *arg) | ||
1470 | { | ||
1471 | struct v4l2_buffer *b = arg; | ||
1472 | int ret = check_fmt(ops, b->type); | ||
1473 | |||
1474 | return ret ? ret : ops->vidioc_prepare_buf(file, fh, b); | ||
1475 | } | ||
1476 | |||
1477 | static int v4l_g_parm(const struct v4l2_ioctl_ops *ops, | ||
1478 | struct file *file, void *fh, void *arg) | ||
1479 | { | ||
1480 | struct video_device *vfd = video_devdata(file); | ||
1481 | struct v4l2_streamparm *p = arg; | ||
1482 | v4l2_std_id std; | ||
1483 | int ret = check_fmt(ops, p->type); | ||
1484 | |||
1485 | if (ret) | ||
1486 | return ret; | ||
1487 | if (ops->vidioc_g_parm) | ||
1488 | return ops->vidioc_g_parm(file, fh, p); | ||
1489 | std = vfd->current_norm; | ||
1490 | if (p->type != V4L2_BUF_TYPE_VIDEO_CAPTURE && | ||
1491 | p->type != V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) | ||
1492 | return -EINVAL; | ||
1493 | p->parm.capture.readbuffers = 2; | ||
1494 | if (ops->vidioc_g_std) | ||
1495 | ret = ops->vidioc_g_std(file, fh, &std); | ||
1496 | if (ret == 0) | ||
1497 | v4l2_video_std_frame_period(std, | ||
1498 | &p->parm.capture.timeperframe); | ||
1499 | return ret; | ||
1500 | } | ||
1501 | |||
1502 | static int v4l_s_parm(const struct v4l2_ioctl_ops *ops, | ||
1503 | struct file *file, void *fh, void *arg) | ||
1504 | { | ||
1505 | struct v4l2_streamparm *p = arg; | ||
1506 | int ret = check_fmt(ops, p->type); | ||
1507 | |||
1508 | return ret ? ret : ops->vidioc_s_parm(file, fh, p); | ||
1509 | } | ||
1510 | |||
1511 | static int v4l_queryctrl(const struct v4l2_ioctl_ops *ops, | ||
1512 | struct file *file, void *fh, void *arg) | ||
1513 | { | ||
1514 | struct video_device *vfd = video_devdata(file); | ||
1515 | struct v4l2_queryctrl *p = arg; | ||
1516 | struct v4l2_fh *vfh = | ||
1517 | test_bit(V4L2_FL_USES_V4L2_FH, &vfd->flags) ? fh : NULL; | ||
1518 | |||
1519 | if (vfh && vfh->ctrl_handler) | ||
1520 | return v4l2_queryctrl(vfh->ctrl_handler, p); | ||
1521 | if (vfd->ctrl_handler) | ||
1522 | return v4l2_queryctrl(vfd->ctrl_handler, p); | ||
1523 | if (ops->vidioc_queryctrl) | ||
1524 | return ops->vidioc_queryctrl(file, fh, p); | ||
1525 | return -ENOTTY; | ||
1526 | } | ||
1527 | |||
1528 | static int v4l_querymenu(const struct v4l2_ioctl_ops *ops, | ||
1529 | struct file *file, void *fh, void *arg) | ||
1530 | { | ||
1531 | struct video_device *vfd = video_devdata(file); | ||
1532 | struct v4l2_querymenu *p = arg; | ||
1533 | struct v4l2_fh *vfh = | ||
1534 | test_bit(V4L2_FL_USES_V4L2_FH, &vfd->flags) ? fh : NULL; | ||
1535 | |||
1536 | if (vfh && vfh->ctrl_handler) | ||
1537 | return v4l2_querymenu(vfh->ctrl_handler, p); | ||
1538 | if (vfd->ctrl_handler) | ||
1539 | return v4l2_querymenu(vfd->ctrl_handler, p); | ||
1540 | if (ops->vidioc_querymenu) | ||
1541 | return ops->vidioc_querymenu(file, fh, p); | ||
1542 | return -ENOTTY; | ||
1543 | } | ||
1544 | |||
1545 | static int v4l_g_ctrl(const struct v4l2_ioctl_ops *ops, | ||
1546 | struct file *file, void *fh, void *arg) | ||
1547 | { | ||
1548 | struct video_device *vfd = video_devdata(file); | ||
1549 | struct v4l2_control *p = arg; | ||
1550 | struct v4l2_fh *vfh = | ||
1551 | test_bit(V4L2_FL_USES_V4L2_FH, &vfd->flags) ? fh : NULL; | ||
1552 | struct v4l2_ext_controls ctrls; | ||
1553 | struct v4l2_ext_control ctrl; | ||
1554 | |||
1555 | if (vfh && vfh->ctrl_handler) | ||
1556 | return v4l2_g_ctrl(vfh->ctrl_handler, p); | ||
1557 | if (vfd->ctrl_handler) | ||
1558 | return v4l2_g_ctrl(vfd->ctrl_handler, p); | ||
1559 | if (ops->vidioc_g_ctrl) | ||
1560 | return ops->vidioc_g_ctrl(file, fh, p); | ||
1561 | if (ops->vidioc_g_ext_ctrls == NULL) | ||
1562 | return -ENOTTY; | ||
1563 | |||
1564 | ctrls.ctrl_class = V4L2_CTRL_ID2CLASS(p->id); | ||
1565 | ctrls.count = 1; | ||
1566 | ctrls.controls = &ctrl; | ||
1567 | ctrl.id = p->id; | ||
1568 | ctrl.value = p->value; | ||
1569 | if (check_ext_ctrls(&ctrls, 1)) { | ||
1570 | int ret = ops->vidioc_g_ext_ctrls(file, fh, &ctrls); | ||
1571 | |||
1572 | if (ret == 0) | ||
1573 | p->value = ctrl.value; | ||
1574 | return ret; | ||
1575 | } | ||
1576 | return -EINVAL; | ||
1577 | } | ||
1578 | |||
1579 | static int v4l_s_ctrl(const struct v4l2_ioctl_ops *ops, | ||
1580 | struct file *file, void *fh, void *arg) | ||
1581 | { | ||
1582 | struct video_device *vfd = video_devdata(file); | ||
1583 | struct v4l2_control *p = arg; | ||
1584 | struct v4l2_fh *vfh = | ||
1585 | test_bit(V4L2_FL_USES_V4L2_FH, &vfd->flags) ? fh : NULL; | ||
1586 | struct v4l2_ext_controls ctrls; | ||
1587 | struct v4l2_ext_control ctrl; | ||
1588 | |||
1589 | if (vfh && vfh->ctrl_handler) | ||
1590 | return v4l2_s_ctrl(vfh, vfh->ctrl_handler, p); | ||
1591 | if (vfd->ctrl_handler) | ||
1592 | return v4l2_s_ctrl(NULL, vfd->ctrl_handler, p); | ||
1593 | if (ops->vidioc_s_ctrl) | ||
1594 | return ops->vidioc_s_ctrl(file, fh, p); | ||
1595 | if (ops->vidioc_s_ext_ctrls == NULL) | ||
1596 | return -ENOTTY; | ||
1597 | |||
1598 | ctrls.ctrl_class = V4L2_CTRL_ID2CLASS(p->id); | ||
1599 | ctrls.count = 1; | ||
1600 | ctrls.controls = &ctrl; | ||
1601 | ctrl.id = p->id; | ||
1602 | ctrl.value = p->value; | ||
1603 | if (check_ext_ctrls(&ctrls, 1)) | ||
1604 | return ops->vidioc_s_ext_ctrls(file, fh, &ctrls); | ||
1605 | return -EINVAL; | ||
1606 | } | ||
1607 | |||
1608 | static int v4l_g_ext_ctrls(const struct v4l2_ioctl_ops *ops, | ||
1609 | struct file *file, void *fh, void *arg) | ||
1610 | { | ||
1611 | struct video_device *vfd = video_devdata(file); | ||
1612 | struct v4l2_ext_controls *p = arg; | ||
1613 | struct v4l2_fh *vfh = | ||
1614 | test_bit(V4L2_FL_USES_V4L2_FH, &vfd->flags) ? fh : NULL; | ||
1615 | |||
1616 | p->error_idx = p->count; | ||
1617 | if (vfh && vfh->ctrl_handler) | ||
1618 | return v4l2_g_ext_ctrls(vfh->ctrl_handler, p); | ||
1619 | if (vfd->ctrl_handler) | ||
1620 | return v4l2_g_ext_ctrls(vfd->ctrl_handler, p); | ||
1621 | if (ops->vidioc_g_ext_ctrls == NULL) | ||
1622 | return -ENOTTY; | ||
1623 | return check_ext_ctrls(p, 0) ? ops->vidioc_g_ext_ctrls(file, fh, p) : | ||
1624 | -EINVAL; | ||
1625 | } | ||
1626 | |||
1627 | static int v4l_s_ext_ctrls(const struct v4l2_ioctl_ops *ops, | ||
1628 | struct file *file, void *fh, void *arg) | ||
1629 | { | ||
1630 | struct video_device *vfd = video_devdata(file); | ||
1631 | struct v4l2_ext_controls *p = arg; | ||
1632 | struct v4l2_fh *vfh = | ||
1633 | test_bit(V4L2_FL_USES_V4L2_FH, &vfd->flags) ? fh : NULL; | ||
1634 | |||
1635 | p->error_idx = p->count; | ||
1636 | if (vfh && vfh->ctrl_handler) | ||
1637 | return v4l2_s_ext_ctrls(vfh, vfh->ctrl_handler, p); | ||
1638 | if (vfd->ctrl_handler) | ||
1639 | return v4l2_s_ext_ctrls(NULL, vfd->ctrl_handler, p); | ||
1640 | if (ops->vidioc_s_ext_ctrls == NULL) | ||
1641 | return -ENOTTY; | ||
1642 | return check_ext_ctrls(p, 0) ? ops->vidioc_s_ext_ctrls(file, fh, p) : | ||
1643 | -EINVAL; | ||
1644 | } | ||
1645 | |||
1646 | static int v4l_try_ext_ctrls(const struct v4l2_ioctl_ops *ops, | ||
1647 | struct file *file, void *fh, void *arg) | ||
1648 | { | ||
1649 | struct video_device *vfd = video_devdata(file); | ||
1650 | struct v4l2_ext_controls *p = arg; | ||
1651 | struct v4l2_fh *vfh = | ||
1652 | test_bit(V4L2_FL_USES_V4L2_FH, &vfd->flags) ? fh : NULL; | ||
1653 | |||
1654 | p->error_idx = p->count; | ||
1655 | if (vfh && vfh->ctrl_handler) | ||
1656 | return v4l2_try_ext_ctrls(vfh->ctrl_handler, p); | ||
1657 | if (vfd->ctrl_handler) | ||
1658 | return v4l2_try_ext_ctrls(vfd->ctrl_handler, p); | ||
1659 | if (ops->vidioc_try_ext_ctrls == NULL) | ||
1660 | return -ENOTTY; | ||
1661 | return check_ext_ctrls(p, 0) ? ops->vidioc_try_ext_ctrls(file, fh, p) : | ||
1662 | -EINVAL; | ||
1663 | } | ||
1664 | |||
1665 | static int v4l_g_crop(const struct v4l2_ioctl_ops *ops, | ||
1666 | struct file *file, void *fh, void *arg) | ||
1667 | { | ||
1668 | struct v4l2_crop *p = arg; | ||
1669 | struct v4l2_selection s = { | ||
1670 | .type = p->type, | ||
1671 | }; | ||
1672 | int ret; | ||
1673 | |||
1674 | if (ops->vidioc_g_crop) | ||
1675 | return ops->vidioc_g_crop(file, fh, p); | ||
1676 | /* simulate capture crop using selection api */ | ||
1677 | |||
1678 | /* crop means compose for output devices */ | ||
1679 | if (V4L2_TYPE_IS_OUTPUT(p->type)) | ||
1680 | s.target = V4L2_SEL_TGT_COMPOSE_ACTIVE; | ||
1681 | else | ||
1682 | s.target = V4L2_SEL_TGT_CROP_ACTIVE; | ||
1683 | |||
1684 | ret = ops->vidioc_g_selection(file, fh, &s); | ||
1685 | |||
1686 | /* copying results to old structure on success */ | ||
1687 | if (!ret) | ||
1688 | p->c = s.r; | ||
1689 | return ret; | ||
1690 | } | ||
1691 | |||
1692 | static int v4l_s_crop(const struct v4l2_ioctl_ops *ops, | ||
1693 | struct file *file, void *fh, void *arg) | ||
1694 | { | ||
1695 | struct v4l2_crop *p = arg; | ||
1696 | struct v4l2_selection s = { | ||
1697 | .type = p->type, | ||
1698 | .r = p->c, | ||
1699 | }; | ||
1700 | |||
1701 | if (ops->vidioc_s_crop) | ||
1702 | return ops->vidioc_s_crop(file, fh, p); | ||
1703 | /* simulate capture crop using selection api */ | ||
1704 | |||
1705 | /* crop means compose for output devices */ | ||
1706 | if (V4L2_TYPE_IS_OUTPUT(p->type)) | ||
1707 | s.target = V4L2_SEL_TGT_COMPOSE_ACTIVE; | ||
1708 | else | ||
1709 | s.target = V4L2_SEL_TGT_CROP_ACTIVE; | ||
1710 | |||
1711 | return ops->vidioc_s_selection(file, fh, &s); | ||
1712 | } | ||
1713 | |||
1714 | static int v4l_cropcap(const struct v4l2_ioctl_ops *ops, | ||
1715 | struct file *file, void *fh, void *arg) | ||
1716 | { | ||
1717 | struct v4l2_cropcap *p = arg; | ||
1718 | struct v4l2_selection s = { .type = p->type }; | ||
1719 | int ret; | ||
1720 | |||
1721 | if (ops->vidioc_cropcap) | ||
1722 | return ops->vidioc_cropcap(file, fh, p); | ||
1723 | |||
1724 | /* obtaining bounds */ | ||
1725 | if (V4L2_TYPE_IS_OUTPUT(p->type)) | ||
1726 | s.target = V4L2_SEL_TGT_COMPOSE_BOUNDS; | ||
1727 | else | ||
1728 | s.target = V4L2_SEL_TGT_CROP_BOUNDS; | ||
1729 | |||
1730 | ret = ops->vidioc_g_selection(file, fh, &s); | ||
1731 | if (ret) | ||
1732 | return ret; | ||
1733 | p->bounds = s.r; | ||
1734 | |||
1735 | /* obtaining defrect */ | ||
1736 | if (V4L2_TYPE_IS_OUTPUT(p->type)) | ||
1737 | s.target = V4L2_SEL_TGT_COMPOSE_DEFAULT; | ||
1738 | else | ||
1739 | s.target = V4L2_SEL_TGT_CROP_DEFAULT; | ||
1740 | |||
1741 | ret = ops->vidioc_g_selection(file, fh, &s); | ||
1742 | if (ret) | ||
1743 | return ret; | ||
1744 | p->defrect = s.r; | ||
1745 | |||
1746 | /* setting trivial pixelaspect */ | ||
1747 | p->pixelaspect.numerator = 1; | ||
1748 | p->pixelaspect.denominator = 1; | ||
1749 | return 0; | ||
1750 | } | ||
1751 | |||
1752 | static int v4l_log_status(const struct v4l2_ioctl_ops *ops, | ||
1753 | struct file *file, void *fh, void *arg) | ||
1754 | { | ||
1755 | struct video_device *vfd = video_devdata(file); | ||
1756 | int ret; | ||
1757 | |||
1758 | if (vfd->v4l2_dev) | ||
1759 | pr_info("%s: ================= START STATUS =================\n", | ||
1760 | vfd->v4l2_dev->name); | ||
1761 | ret = ops->vidioc_log_status(file, fh); | ||
1762 | if (vfd->v4l2_dev) | ||
1763 | pr_info("%s: ================== END STATUS ==================\n", | ||
1764 | vfd->v4l2_dev->name); | ||
1765 | return ret; | ||
1766 | } | ||
1767 | |||
1768 | static int v4l_dbg_g_register(const struct v4l2_ioctl_ops *ops, | ||
1769 | struct file *file, void *fh, void *arg) | ||
1770 | { | ||
1771 | #ifdef CONFIG_VIDEO_ADV_DEBUG | ||
1772 | struct v4l2_dbg_register *p = arg; | ||
1773 | |||
1774 | if (!capable(CAP_SYS_ADMIN)) | ||
1775 | return -EPERM; | ||
1776 | return ops->vidioc_g_register(file, fh, p); | ||
1777 | #else | ||
1778 | return -ENOTTY; | ||
1779 | #endif | ||
1780 | } | ||
1781 | |||
1782 | static int v4l_dbg_s_register(const struct v4l2_ioctl_ops *ops, | ||
1783 | struct file *file, void *fh, void *arg) | ||
1784 | { | ||
1785 | #ifdef CONFIG_VIDEO_ADV_DEBUG | ||
1786 | struct v4l2_dbg_register *p = arg; | ||
1787 | |||
1788 | if (!capable(CAP_SYS_ADMIN)) | ||
1789 | return -EPERM; | ||
1790 | return ops->vidioc_s_register(file, fh, p); | ||
1791 | #else | ||
1792 | return -ENOTTY; | ||
1793 | #endif | ||
1794 | } | ||
1795 | |||
1796 | static int v4l_dbg_g_chip_ident(const struct v4l2_ioctl_ops *ops, | ||
1797 | struct file *file, void *fh, void *arg) | ||
1798 | { | ||
1799 | struct v4l2_dbg_chip_ident *p = arg; | ||
1800 | |||
1801 | p->ident = V4L2_IDENT_NONE; | ||
1802 | p->revision = 0; | ||
1803 | return ops->vidioc_g_chip_ident(file, fh, p); | ||
1804 | } | ||
1805 | |||
1806 | static int v4l_dqevent(const struct v4l2_ioctl_ops *ops, | ||
1807 | struct file *file, void *fh, void *arg) | ||
1808 | { | ||
1809 | return v4l2_event_dequeue(fh, arg, file->f_flags & O_NONBLOCK); | ||
1810 | } | ||
1811 | |||
1812 | static int v4l_subscribe_event(const struct v4l2_ioctl_ops *ops, | ||
1813 | struct file *file, void *fh, void *arg) | ||
1814 | { | ||
1815 | return ops->vidioc_subscribe_event(fh, arg); | ||
1816 | } | ||
1817 | |||
1818 | static int v4l_unsubscribe_event(const struct v4l2_ioctl_ops *ops, | ||
1819 | struct file *file, void *fh, void *arg) | ||
1820 | { | ||
1821 | return ops->vidioc_unsubscribe_event(fh, arg); | ||
1822 | } | ||
1823 | |||
1824 | static int v4l_g_sliced_vbi_cap(const struct v4l2_ioctl_ops *ops, | ||
1825 | struct file *file, void *fh, void *arg) | ||
1826 | { | ||
1827 | struct v4l2_sliced_vbi_cap *p = arg; | ||
1828 | |||
1829 | /* Clear up to type, everything after type is zeroed already */ | ||
1830 | memset(p, 0, offsetof(struct v4l2_sliced_vbi_cap, type)); | ||
1831 | |||
1832 | return ops->vidioc_g_sliced_vbi_cap(file, fh, p); | ||
1833 | } | ||
1834 | |||
1835 | static int v4l_enum_freq_bands(const struct v4l2_ioctl_ops *ops, | ||
1836 | struct file *file, void *fh, void *arg) | ||
1837 | { | ||
1838 | struct video_device *vfd = video_devdata(file); | ||
1839 | struct v4l2_frequency_band *p = arg; | ||
1840 | enum v4l2_tuner_type type; | ||
1841 | int err; | ||
1842 | |||
1843 | type = (vfd->vfl_type == VFL_TYPE_RADIO) ? | ||
1844 | V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV; | ||
1845 | |||
1846 | if (type != p->type) | ||
1847 | return -EINVAL; | ||
1848 | if (ops->vidioc_enum_freq_bands) | ||
1849 | return ops->vidioc_enum_freq_bands(file, fh, p); | ||
1850 | if (ops->vidioc_g_tuner) { | ||
1851 | struct v4l2_tuner t = { | ||
1852 | .index = p->tuner, | ||
1853 | .type = type, | ||
1854 | }; | ||
1855 | |||
1856 | err = ops->vidioc_g_tuner(file, fh, &t); | ||
1857 | if (err) | ||
1858 | return err; | ||
1859 | p->capability = t.capability | V4L2_TUNER_CAP_FREQ_BANDS; | ||
1860 | p->rangelow = t.rangelow; | ||
1861 | p->rangehigh = t.rangehigh; | ||
1862 | p->modulation = (type == V4L2_TUNER_RADIO) ? | ||
1863 | V4L2_BAND_MODULATION_FM : V4L2_BAND_MODULATION_VSB; | ||
1864 | return 0; | ||
1865 | } | ||
1866 | if (ops->vidioc_g_modulator) { | ||
1867 | struct v4l2_modulator m = { | ||
1868 | .index = p->tuner, | ||
1869 | }; | ||
1870 | |||
1871 | if (type != V4L2_TUNER_RADIO) | ||
1872 | return -EINVAL; | ||
1873 | err = ops->vidioc_g_modulator(file, fh, &m); | ||
1874 | if (err) | ||
1875 | return err; | ||
1876 | p->capability = m.capability | V4L2_TUNER_CAP_FREQ_BANDS; | ||
1877 | p->rangelow = m.rangelow; | ||
1878 | p->rangehigh = m.rangehigh; | ||
1879 | p->modulation = (type == V4L2_TUNER_RADIO) ? | ||
1880 | V4L2_BAND_MODULATION_FM : V4L2_BAND_MODULATION_VSB; | ||
1881 | return 0; | ||
1882 | } | ||
1883 | return -ENOTTY; | ||
1884 | } | ||
1885 | |||
1886 | struct v4l2_ioctl_info { | ||
1887 | unsigned int ioctl; | ||
1888 | u32 flags; | ||
1889 | const char * const name; | ||
1890 | union { | ||
1891 | u32 offset; | ||
1892 | int (*func)(const struct v4l2_ioctl_ops *ops, | ||
1893 | struct file *file, void *fh, void *p); | ||
1894 | } u; | ||
1895 | void (*debug)(const void *arg, bool write_only); | ||
1896 | }; | ||
1897 | |||
1898 | /* This control needs a priority check */ | ||
1899 | #define INFO_FL_PRIO (1 << 0) | ||
1900 | /* This control can be valid if the filehandle passes a control handler. */ | ||
1901 | #define INFO_FL_CTRL (1 << 1) | ||
1902 | /* This is a standard ioctl, no need for special code */ | ||
1903 | #define INFO_FL_STD (1 << 2) | ||
1904 | /* This is ioctl has its own function */ | ||
1905 | #define INFO_FL_FUNC (1 << 3) | ||
1906 | /* Queuing ioctl */ | ||
1907 | #define INFO_FL_QUEUE (1 << 4) | ||
1908 | /* Zero struct from after the field to the end */ | ||
1909 | #define INFO_FL_CLEAR(v4l2_struct, field) \ | ||
1910 | ((offsetof(struct v4l2_struct, field) + \ | ||
1911 | sizeof(((struct v4l2_struct *)0)->field)) << 16) | ||
1912 | #define INFO_FL_CLEAR_MASK (_IOC_SIZEMASK << 16) | ||
1913 | |||
1914 | #define IOCTL_INFO_STD(_ioctl, _vidioc, _debug, _flags) \ | ||
1915 | [_IOC_NR(_ioctl)] = { \ | ||
1916 | .ioctl = _ioctl, \ | ||
1917 | .flags = _flags | INFO_FL_STD, \ | ||
1918 | .name = #_ioctl, \ | ||
1919 | .u.offset = offsetof(struct v4l2_ioctl_ops, _vidioc), \ | ||
1920 | .debug = _debug, \ | ||
1921 | } | ||
1922 | |||
1923 | #define IOCTL_INFO_FNC(_ioctl, _func, _debug, _flags) \ | ||
1924 | [_IOC_NR(_ioctl)] = { \ | ||
1925 | .ioctl = _ioctl, \ | ||
1926 | .flags = _flags | INFO_FL_FUNC, \ | ||
1927 | .name = #_ioctl, \ | ||
1928 | .u.func = _func, \ | ||
1929 | .debug = _debug, \ | ||
1930 | } | ||
1931 | |||
1932 | static struct v4l2_ioctl_info v4l2_ioctls[] = { | ||
1933 | IOCTL_INFO_FNC(VIDIOC_QUERYCAP, v4l_querycap, v4l_print_querycap, 0), | ||
1934 | IOCTL_INFO_FNC(VIDIOC_ENUM_FMT, v4l_enum_fmt, v4l_print_fmtdesc, INFO_FL_CLEAR(v4l2_fmtdesc, type)), | ||
1935 | IOCTL_INFO_FNC(VIDIOC_G_FMT, v4l_g_fmt, v4l_print_format, INFO_FL_CLEAR(v4l2_format, type)), | ||
1936 | IOCTL_INFO_FNC(VIDIOC_S_FMT, v4l_s_fmt, v4l_print_format, INFO_FL_PRIO), | ||
1937 | IOCTL_INFO_FNC(VIDIOC_REQBUFS, v4l_reqbufs, v4l_print_requestbuffers, INFO_FL_PRIO | INFO_FL_QUEUE), | ||
1938 | IOCTL_INFO_FNC(VIDIOC_QUERYBUF, v4l_querybuf, v4l_print_buffer, INFO_FL_QUEUE | INFO_FL_CLEAR(v4l2_buffer, length)), | ||
1939 | IOCTL_INFO_STD(VIDIOC_G_FBUF, vidioc_g_fbuf, v4l_print_framebuffer, 0), | ||
1940 | IOCTL_INFO_STD(VIDIOC_S_FBUF, vidioc_s_fbuf, v4l_print_framebuffer, INFO_FL_PRIO), | ||
1941 | IOCTL_INFO_STD(VIDIOC_OVERLAY, vidioc_overlay, v4l_print_u32, INFO_FL_PRIO), | ||
1942 | IOCTL_INFO_FNC(VIDIOC_QBUF, v4l_qbuf, v4l_print_buffer, INFO_FL_QUEUE), | ||
1943 | IOCTL_INFO_FNC(VIDIOC_DQBUF, v4l_dqbuf, v4l_print_buffer, INFO_FL_QUEUE), | ||
1944 | IOCTL_INFO_FNC(VIDIOC_STREAMON, v4l_streamon, v4l_print_buftype, INFO_FL_PRIO | INFO_FL_QUEUE), | ||
1945 | IOCTL_INFO_FNC(VIDIOC_STREAMOFF, v4l_streamoff, v4l_print_buftype, INFO_FL_PRIO | INFO_FL_QUEUE), | ||
1946 | IOCTL_INFO_FNC(VIDIOC_G_PARM, v4l_g_parm, v4l_print_streamparm, INFO_FL_CLEAR(v4l2_streamparm, type)), | ||
1947 | IOCTL_INFO_FNC(VIDIOC_S_PARM, v4l_s_parm, v4l_print_streamparm, INFO_FL_PRIO), | ||
1948 | IOCTL_INFO_FNC(VIDIOC_G_STD, v4l_g_std, v4l_print_std, 0), | ||
1949 | IOCTL_INFO_FNC(VIDIOC_S_STD, v4l_s_std, v4l_print_std, INFO_FL_PRIO), | ||
1950 | IOCTL_INFO_FNC(VIDIOC_ENUMSTD, v4l_enumstd, v4l_print_standard, INFO_FL_CLEAR(v4l2_standard, index)), | ||
1951 | IOCTL_INFO_FNC(VIDIOC_ENUMINPUT, v4l_enuminput, v4l_print_enuminput, INFO_FL_CLEAR(v4l2_input, index)), | ||
1952 | IOCTL_INFO_FNC(VIDIOC_G_CTRL, v4l_g_ctrl, v4l_print_control, INFO_FL_CTRL | INFO_FL_CLEAR(v4l2_control, id)), | ||
1953 | IOCTL_INFO_FNC(VIDIOC_S_CTRL, v4l_s_ctrl, v4l_print_control, INFO_FL_PRIO | INFO_FL_CTRL), | ||
1954 | IOCTL_INFO_FNC(VIDIOC_G_TUNER, v4l_g_tuner, v4l_print_tuner, INFO_FL_CLEAR(v4l2_tuner, index)), | ||
1955 | IOCTL_INFO_FNC(VIDIOC_S_TUNER, v4l_s_tuner, v4l_print_tuner, INFO_FL_PRIO), | ||
1956 | IOCTL_INFO_STD(VIDIOC_G_AUDIO, vidioc_g_audio, v4l_print_audio, 0), | ||
1957 | IOCTL_INFO_STD(VIDIOC_S_AUDIO, vidioc_s_audio, v4l_print_audio, INFO_FL_PRIO), | ||
1958 | IOCTL_INFO_FNC(VIDIOC_QUERYCTRL, v4l_queryctrl, v4l_print_queryctrl, INFO_FL_CTRL | INFO_FL_CLEAR(v4l2_queryctrl, id)), | ||
1959 | IOCTL_INFO_FNC(VIDIOC_QUERYMENU, v4l_querymenu, v4l_print_querymenu, INFO_FL_CTRL | INFO_FL_CLEAR(v4l2_querymenu, index)), | ||
1960 | IOCTL_INFO_STD(VIDIOC_G_INPUT, vidioc_g_input, v4l_print_u32, 0), | ||
1961 | IOCTL_INFO_FNC(VIDIOC_S_INPUT, v4l_s_input, v4l_print_u32, INFO_FL_PRIO), | ||
1962 | IOCTL_INFO_STD(VIDIOC_G_OUTPUT, vidioc_g_output, v4l_print_u32, 0), | ||
1963 | IOCTL_INFO_FNC(VIDIOC_S_OUTPUT, v4l_s_output, v4l_print_u32, INFO_FL_PRIO), | ||
1964 | IOCTL_INFO_FNC(VIDIOC_ENUMOUTPUT, v4l_enumoutput, v4l_print_enumoutput, INFO_FL_CLEAR(v4l2_output, index)), | ||
1965 | IOCTL_INFO_STD(VIDIOC_G_AUDOUT, vidioc_g_audout, v4l_print_audioout, 0), | ||
1966 | IOCTL_INFO_STD(VIDIOC_S_AUDOUT, vidioc_s_audout, v4l_print_audioout, INFO_FL_PRIO), | ||
1967 | IOCTL_INFO_FNC(VIDIOC_G_MODULATOR, v4l_g_modulator, v4l_print_modulator, INFO_FL_CLEAR(v4l2_modulator, index)), | ||
1968 | IOCTL_INFO_STD(VIDIOC_S_MODULATOR, vidioc_s_modulator, v4l_print_modulator, INFO_FL_PRIO), | ||
1969 | IOCTL_INFO_FNC(VIDIOC_G_FREQUENCY, v4l_g_frequency, v4l_print_frequency, INFO_FL_CLEAR(v4l2_frequency, tuner)), | ||
1970 | IOCTL_INFO_FNC(VIDIOC_S_FREQUENCY, v4l_s_frequency, v4l_print_frequency, INFO_FL_PRIO), | ||
1971 | IOCTL_INFO_FNC(VIDIOC_CROPCAP, v4l_cropcap, v4l_print_cropcap, INFO_FL_CLEAR(v4l2_cropcap, type)), | ||
1972 | IOCTL_INFO_FNC(VIDIOC_G_CROP, v4l_g_crop, v4l_print_crop, INFO_FL_CLEAR(v4l2_crop, type)), | ||
1973 | IOCTL_INFO_FNC(VIDIOC_S_CROP, v4l_s_crop, v4l_print_crop, INFO_FL_PRIO), | ||
1974 | IOCTL_INFO_STD(VIDIOC_G_SELECTION, vidioc_g_selection, v4l_print_selection, 0), | ||
1975 | IOCTL_INFO_STD(VIDIOC_S_SELECTION, vidioc_s_selection, v4l_print_selection, INFO_FL_PRIO), | ||
1976 | IOCTL_INFO_STD(VIDIOC_G_JPEGCOMP, vidioc_g_jpegcomp, v4l_print_jpegcompression, 0), | ||
1977 | IOCTL_INFO_STD(VIDIOC_S_JPEGCOMP, vidioc_s_jpegcomp, v4l_print_jpegcompression, INFO_FL_PRIO), | ||
1978 | IOCTL_INFO_FNC(VIDIOC_QUERYSTD, v4l_querystd, v4l_print_std, 0), | ||
1979 | IOCTL_INFO_FNC(VIDIOC_TRY_FMT, v4l_try_fmt, v4l_print_format, 0), | ||
1980 | IOCTL_INFO_STD(VIDIOC_ENUMAUDIO, vidioc_enumaudio, v4l_print_audio, INFO_FL_CLEAR(v4l2_audio, index)), | ||
1981 | IOCTL_INFO_STD(VIDIOC_ENUMAUDOUT, vidioc_enumaudout, v4l_print_audioout, INFO_FL_CLEAR(v4l2_audioout, index)), | ||
1982 | IOCTL_INFO_FNC(VIDIOC_G_PRIORITY, v4l_g_priority, v4l_print_u32, 0), | ||
1983 | IOCTL_INFO_FNC(VIDIOC_S_PRIORITY, v4l_s_priority, v4l_print_u32, INFO_FL_PRIO), | ||
1984 | IOCTL_INFO_FNC(VIDIOC_G_SLICED_VBI_CAP, v4l_g_sliced_vbi_cap, v4l_print_sliced_vbi_cap, INFO_FL_CLEAR(v4l2_sliced_vbi_cap, type)), | ||
1985 | IOCTL_INFO_FNC(VIDIOC_LOG_STATUS, v4l_log_status, v4l_print_newline, 0), | ||
1986 | IOCTL_INFO_FNC(VIDIOC_G_EXT_CTRLS, v4l_g_ext_ctrls, v4l_print_ext_controls, INFO_FL_CTRL), | ||
1987 | IOCTL_INFO_FNC(VIDIOC_S_EXT_CTRLS, v4l_s_ext_ctrls, v4l_print_ext_controls, INFO_FL_PRIO | INFO_FL_CTRL), | ||
1988 | IOCTL_INFO_FNC(VIDIOC_TRY_EXT_CTRLS, v4l_try_ext_ctrls, v4l_print_ext_controls, INFO_FL_CTRL), | ||
1989 | IOCTL_INFO_STD(VIDIOC_ENUM_FRAMESIZES, vidioc_enum_framesizes, v4l_print_frmsizeenum, INFO_FL_CLEAR(v4l2_frmsizeenum, pixel_format)), | ||
1990 | IOCTL_INFO_STD(VIDIOC_ENUM_FRAMEINTERVALS, vidioc_enum_frameintervals, v4l_print_frmivalenum, INFO_FL_CLEAR(v4l2_frmivalenum, height)), | ||
1991 | IOCTL_INFO_STD(VIDIOC_G_ENC_INDEX, vidioc_g_enc_index, v4l_print_enc_idx, 0), | ||
1992 | IOCTL_INFO_STD(VIDIOC_ENCODER_CMD, vidioc_encoder_cmd, v4l_print_encoder_cmd, INFO_FL_PRIO | INFO_FL_CLEAR(v4l2_encoder_cmd, flags)), | ||
1993 | IOCTL_INFO_STD(VIDIOC_TRY_ENCODER_CMD, vidioc_try_encoder_cmd, v4l_print_encoder_cmd, INFO_FL_CLEAR(v4l2_encoder_cmd, flags)), | ||
1994 | IOCTL_INFO_STD(VIDIOC_DECODER_CMD, vidioc_decoder_cmd, v4l_print_decoder_cmd, INFO_FL_PRIO), | ||
1995 | IOCTL_INFO_STD(VIDIOC_TRY_DECODER_CMD, vidioc_try_decoder_cmd, v4l_print_decoder_cmd, 0), | ||
1996 | IOCTL_INFO_FNC(VIDIOC_DBG_S_REGISTER, v4l_dbg_s_register, v4l_print_dbg_register, 0), | ||
1997 | IOCTL_INFO_FNC(VIDIOC_DBG_G_REGISTER, v4l_dbg_g_register, v4l_print_dbg_register, 0), | ||
1998 | IOCTL_INFO_FNC(VIDIOC_DBG_G_CHIP_IDENT, v4l_dbg_g_chip_ident, v4l_print_dbg_chip_ident, 0), | ||
1999 | IOCTL_INFO_FNC(VIDIOC_S_HW_FREQ_SEEK, v4l_s_hw_freq_seek, v4l_print_hw_freq_seek, INFO_FL_PRIO), | ||
2000 | IOCTL_INFO_STD(VIDIOC_ENUM_DV_PRESETS, vidioc_enum_dv_presets, v4l_print_dv_enum_presets, 0), | ||
2001 | IOCTL_INFO_STD(VIDIOC_S_DV_PRESET, vidioc_s_dv_preset, v4l_print_dv_preset, INFO_FL_PRIO), | ||
2002 | IOCTL_INFO_STD(VIDIOC_G_DV_PRESET, vidioc_g_dv_preset, v4l_print_dv_preset, 0), | ||
2003 | IOCTL_INFO_STD(VIDIOC_QUERY_DV_PRESET, vidioc_query_dv_preset, v4l_print_dv_preset, 0), | ||
2004 | IOCTL_INFO_STD(VIDIOC_S_DV_TIMINGS, vidioc_s_dv_timings, v4l_print_dv_timings, INFO_FL_PRIO), | ||
2005 | IOCTL_INFO_STD(VIDIOC_G_DV_TIMINGS, vidioc_g_dv_timings, v4l_print_dv_timings, 0), | ||
2006 | IOCTL_INFO_FNC(VIDIOC_DQEVENT, v4l_dqevent, v4l_print_event, 0), | ||
2007 | IOCTL_INFO_FNC(VIDIOC_SUBSCRIBE_EVENT, v4l_subscribe_event, v4l_print_event_subscription, 0), | ||
2008 | IOCTL_INFO_FNC(VIDIOC_UNSUBSCRIBE_EVENT, v4l_unsubscribe_event, v4l_print_event_subscription, 0), | ||
2009 | IOCTL_INFO_FNC(VIDIOC_CREATE_BUFS, v4l_create_bufs, v4l_print_create_buffers, INFO_FL_PRIO | INFO_FL_QUEUE), | ||
2010 | IOCTL_INFO_FNC(VIDIOC_PREPARE_BUF, v4l_prepare_buf, v4l_print_buffer, INFO_FL_QUEUE), | ||
2011 | IOCTL_INFO_STD(VIDIOC_ENUM_DV_TIMINGS, vidioc_enum_dv_timings, v4l_print_enum_dv_timings, 0), | ||
2012 | IOCTL_INFO_STD(VIDIOC_QUERY_DV_TIMINGS, vidioc_query_dv_timings, v4l_print_dv_timings, 0), | ||
2013 | IOCTL_INFO_STD(VIDIOC_DV_TIMINGS_CAP, vidioc_dv_timings_cap, v4l_print_dv_timings_cap, INFO_FL_CLEAR(v4l2_dv_timings_cap, type)), | ||
2014 | IOCTL_INFO_FNC(VIDIOC_ENUM_FREQ_BANDS, v4l_enum_freq_bands, v4l_print_freq_band, 0), | ||
2015 | }; | ||
2016 | #define V4L2_IOCTLS ARRAY_SIZE(v4l2_ioctls) | ||
2017 | |||
2018 | bool v4l2_is_known_ioctl(unsigned int cmd) | ||
2019 | { | ||
2020 | if (_IOC_NR(cmd) >= V4L2_IOCTLS) | ||
2021 | return false; | ||
2022 | return v4l2_ioctls[_IOC_NR(cmd)].ioctl == cmd; | ||
2023 | } | ||
2024 | |||
2025 | struct mutex *v4l2_ioctl_get_lock(struct video_device *vdev, unsigned cmd) | ||
2026 | { | ||
2027 | if (_IOC_NR(cmd) >= V4L2_IOCTLS) | ||
2028 | return vdev->lock; | ||
2029 | if (test_bit(_IOC_NR(cmd), vdev->disable_locking)) | ||
2030 | return NULL; | ||
2031 | if (vdev->queue && vdev->queue->lock && | ||
2032 | (v4l2_ioctls[_IOC_NR(cmd)].flags & INFO_FL_QUEUE)) | ||
2033 | return vdev->queue->lock; | ||
2034 | return vdev->lock; | ||
2035 | } | ||
2036 | |||
2037 | /* Common ioctl debug function. This function can be used by | ||
2038 | external ioctl messages as well as internal V4L ioctl */ | ||
2039 | void v4l_printk_ioctl(const char *prefix, unsigned int cmd) | ||
2040 | { | ||
2041 | const char *dir, *type; | ||
2042 | |||
2043 | if (prefix) | ||
2044 | printk(KERN_DEBUG "%s: ", prefix); | ||
2045 | |||
2046 | switch (_IOC_TYPE(cmd)) { | ||
2047 | case 'd': | ||
2048 | type = "v4l2_int"; | ||
2049 | break; | ||
2050 | case 'V': | ||
2051 | if (_IOC_NR(cmd) >= V4L2_IOCTLS) { | ||
2052 | type = "v4l2"; | ||
2053 | break; | ||
2054 | } | ||
2055 | pr_cont("%s", v4l2_ioctls[_IOC_NR(cmd)].name); | ||
2056 | return; | ||
2057 | default: | ||
2058 | type = "unknown"; | ||
2059 | break; | ||
2060 | } | ||
2061 | |||
2062 | switch (_IOC_DIR(cmd)) { | ||
2063 | case _IOC_NONE: dir = "--"; break; | ||
2064 | case _IOC_READ: dir = "r-"; break; | ||
2065 | case _IOC_WRITE: dir = "-w"; break; | ||
2066 | case _IOC_READ | _IOC_WRITE: dir = "rw"; break; | ||
2067 | default: dir = "*ERR*"; break; | ||
2068 | } | ||
2069 | pr_cont("%s ioctl '%c', dir=%s, #%d (0x%08x)", | ||
2070 | type, _IOC_TYPE(cmd), dir, _IOC_NR(cmd), cmd); | ||
2071 | } | ||
2072 | EXPORT_SYMBOL(v4l_printk_ioctl); | ||
2073 | |||
2074 | static long __video_do_ioctl(struct file *file, | ||
2075 | unsigned int cmd, void *arg) | ||
2076 | { | ||
2077 | struct video_device *vfd = video_devdata(file); | ||
2078 | const struct v4l2_ioctl_ops *ops = vfd->ioctl_ops; | ||
2079 | bool write_only = false; | ||
2080 | struct v4l2_ioctl_info default_info; | ||
2081 | const struct v4l2_ioctl_info *info; | ||
2082 | void *fh = file->private_data; | ||
2083 | struct v4l2_fh *vfh = NULL; | ||
2084 | int use_fh_prio = 0; | ||
2085 | int debug = vfd->debug; | ||
2086 | long ret = -ENOTTY; | ||
2087 | |||
2088 | if (ops == NULL) { | ||
2089 | pr_warn("%s: has no ioctl_ops.\n", | ||
2090 | video_device_node_name(vfd)); | ||
2091 | return ret; | ||
2092 | } | ||
2093 | |||
2094 | if (test_bit(V4L2_FL_USES_V4L2_FH, &vfd->flags)) { | ||
2095 | vfh = file->private_data; | ||
2096 | use_fh_prio = test_bit(V4L2_FL_USE_FH_PRIO, &vfd->flags); | ||
2097 | } | ||
2098 | |||
2099 | if (v4l2_is_known_ioctl(cmd)) { | ||
2100 | info = &v4l2_ioctls[_IOC_NR(cmd)]; | ||
2101 | |||
2102 | if (!test_bit(_IOC_NR(cmd), vfd->valid_ioctls) && | ||
2103 | !((info->flags & INFO_FL_CTRL) && vfh && vfh->ctrl_handler)) | ||
2104 | goto done; | ||
2105 | |||
2106 | if (use_fh_prio && (info->flags & INFO_FL_PRIO)) { | ||
2107 | ret = v4l2_prio_check(vfd->prio, vfh->prio); | ||
2108 | if (ret) | ||
2109 | goto done; | ||
2110 | } | ||
2111 | } else { | ||
2112 | default_info.ioctl = cmd; | ||
2113 | default_info.flags = 0; | ||
2114 | default_info.debug = v4l_print_default; | ||
2115 | info = &default_info; | ||
2116 | } | ||
2117 | |||
2118 | write_only = _IOC_DIR(cmd) == _IOC_WRITE; | ||
2119 | if (write_only && debug > V4L2_DEBUG_IOCTL) { | ||
2120 | v4l_printk_ioctl(video_device_node_name(vfd), cmd); | ||
2121 | pr_cont(": "); | ||
2122 | info->debug(arg, write_only); | ||
2123 | } | ||
2124 | if (info->flags & INFO_FL_STD) { | ||
2125 | typedef int (*vidioc_op)(struct file *file, void *fh, void *p); | ||
2126 | const void *p = vfd->ioctl_ops; | ||
2127 | const vidioc_op *vidioc = p + info->u.offset; | ||
2128 | |||
2129 | ret = (*vidioc)(file, fh, arg); | ||
2130 | } else if (info->flags & INFO_FL_FUNC) { | ||
2131 | ret = info->u.func(ops, file, fh, arg); | ||
2132 | } else if (!ops->vidioc_default) { | ||
2133 | ret = -ENOTTY; | ||
2134 | } else { | ||
2135 | ret = ops->vidioc_default(file, fh, | ||
2136 | use_fh_prio ? v4l2_prio_check(vfd->prio, vfh->prio) >= 0 : 0, | ||
2137 | cmd, arg); | ||
2138 | } | ||
2139 | |||
2140 | done: | ||
2141 | if (debug) { | ||
2142 | if (write_only && debug > V4L2_DEBUG_IOCTL) { | ||
2143 | if (ret < 0) | ||
2144 | printk(KERN_DEBUG "%s: error %ld\n", | ||
2145 | video_device_node_name(vfd), ret); | ||
2146 | return ret; | ||
2147 | } | ||
2148 | v4l_printk_ioctl(video_device_node_name(vfd), cmd); | ||
2149 | if (ret < 0) | ||
2150 | pr_cont(": error %ld\n", ret); | ||
2151 | else if (debug == V4L2_DEBUG_IOCTL) | ||
2152 | pr_cont("\n"); | ||
2153 | else if (_IOC_DIR(cmd) == _IOC_NONE) | ||
2154 | info->debug(arg, write_only); | ||
2155 | else { | ||
2156 | pr_cont(": "); | ||
2157 | info->debug(arg, write_only); | ||
2158 | } | ||
2159 | } | ||
2160 | |||
2161 | return ret; | ||
2162 | } | ||
2163 | |||
2164 | static int check_array_args(unsigned int cmd, void *parg, size_t *array_size, | ||
2165 | void * __user *user_ptr, void ***kernel_ptr) | ||
2166 | { | ||
2167 | int ret = 0; | ||
2168 | |||
2169 | switch (cmd) { | ||
2170 | case VIDIOC_QUERYBUF: | ||
2171 | case VIDIOC_QBUF: | ||
2172 | case VIDIOC_DQBUF: { | ||
2173 | struct v4l2_buffer *buf = parg; | ||
2174 | |||
2175 | if (V4L2_TYPE_IS_MULTIPLANAR(buf->type) && buf->length > 0) { | ||
2176 | if (buf->length > VIDEO_MAX_PLANES) { | ||
2177 | ret = -EINVAL; | ||
2178 | break; | ||
2179 | } | ||
2180 | *user_ptr = (void __user *)buf->m.planes; | ||
2181 | *kernel_ptr = (void *)&buf->m.planes; | ||
2182 | *array_size = sizeof(struct v4l2_plane) * buf->length; | ||
2183 | ret = 1; | ||
2184 | } | ||
2185 | break; | ||
2186 | } | ||
2187 | |||
2188 | case VIDIOC_S_EXT_CTRLS: | ||
2189 | case VIDIOC_G_EXT_CTRLS: | ||
2190 | case VIDIOC_TRY_EXT_CTRLS: { | ||
2191 | struct v4l2_ext_controls *ctrls = parg; | ||
2192 | |||
2193 | if (ctrls->count != 0) { | ||
2194 | if (ctrls->count > V4L2_CID_MAX_CTRLS) { | ||
2195 | ret = -EINVAL; | ||
2196 | break; | ||
2197 | } | ||
2198 | *user_ptr = (void __user *)ctrls->controls; | ||
2199 | *kernel_ptr = (void *)&ctrls->controls; | ||
2200 | *array_size = sizeof(struct v4l2_ext_control) | ||
2201 | * ctrls->count; | ||
2202 | ret = 1; | ||
2203 | } | ||
2204 | break; | ||
2205 | } | ||
2206 | } | ||
2207 | |||
2208 | return ret; | ||
2209 | } | ||
2210 | |||
2211 | long | ||
2212 | video_usercopy(struct file *file, unsigned int cmd, unsigned long arg, | ||
2213 | v4l2_kioctl func) | ||
2214 | { | ||
2215 | char sbuf[128]; | ||
2216 | void *mbuf = NULL; | ||
2217 | void *parg = (void *)arg; | ||
2218 | long err = -EINVAL; | ||
2219 | bool has_array_args; | ||
2220 | size_t array_size = 0; | ||
2221 | void __user *user_ptr = NULL; | ||
2222 | void **kernel_ptr = NULL; | ||
2223 | |||
2224 | /* Copy arguments into temp kernel buffer */ | ||
2225 | if (_IOC_DIR(cmd) != _IOC_NONE) { | ||
2226 | if (_IOC_SIZE(cmd) <= sizeof(sbuf)) { | ||
2227 | parg = sbuf; | ||
2228 | } else { | ||
2229 | /* too big to allocate from stack */ | ||
2230 | mbuf = kmalloc(_IOC_SIZE(cmd), GFP_KERNEL); | ||
2231 | if (NULL == mbuf) | ||
2232 | return -ENOMEM; | ||
2233 | parg = mbuf; | ||
2234 | } | ||
2235 | |||
2236 | err = -EFAULT; | ||
2237 | if (_IOC_DIR(cmd) & _IOC_WRITE) { | ||
2238 | unsigned int n = _IOC_SIZE(cmd); | ||
2239 | |||
2240 | /* | ||
2241 | * In some cases, only a few fields are used as input, | ||
2242 | * i.e. when the app sets "index" and then the driver | ||
2243 | * fills in the rest of the structure for the thing | ||
2244 | * with that index. We only need to copy up the first | ||
2245 | * non-input field. | ||
2246 | */ | ||
2247 | if (v4l2_is_known_ioctl(cmd)) { | ||
2248 | u32 flags = v4l2_ioctls[_IOC_NR(cmd)].flags; | ||
2249 | if (flags & INFO_FL_CLEAR_MASK) | ||
2250 | n = (flags & INFO_FL_CLEAR_MASK) >> 16; | ||
2251 | } | ||
2252 | |||
2253 | if (copy_from_user(parg, (void __user *)arg, n)) | ||
2254 | goto out; | ||
2255 | |||
2256 | /* zero out anything we don't copy from userspace */ | ||
2257 | if (n < _IOC_SIZE(cmd)) | ||
2258 | memset((u8 *)parg + n, 0, _IOC_SIZE(cmd) - n); | ||
2259 | } else { | ||
2260 | /* read-only ioctl */ | ||
2261 | memset(parg, 0, _IOC_SIZE(cmd)); | ||
2262 | } | ||
2263 | } | ||
2264 | |||
2265 | err = check_array_args(cmd, parg, &array_size, &user_ptr, &kernel_ptr); | ||
2266 | if (err < 0) | ||
2267 | goto out; | ||
2268 | has_array_args = err; | ||
2269 | |||
2270 | if (has_array_args) { | ||
2271 | /* | ||
2272 | * When adding new types of array args, make sure that the | ||
2273 | * parent argument to ioctl (which contains the pointer to the | ||
2274 | * array) fits into sbuf (so that mbuf will still remain | ||
2275 | * unused up to here). | ||
2276 | */ | ||
2277 | mbuf = kmalloc(array_size, GFP_KERNEL); | ||
2278 | err = -ENOMEM; | ||
2279 | if (NULL == mbuf) | ||
2280 | goto out_array_args; | ||
2281 | err = -EFAULT; | ||
2282 | if (copy_from_user(mbuf, user_ptr, array_size)) | ||
2283 | goto out_array_args; | ||
2284 | *kernel_ptr = mbuf; | ||
2285 | } | ||
2286 | |||
2287 | /* Handles IOCTL */ | ||
2288 | err = func(file, cmd, parg); | ||
2289 | if (err == -ENOIOCTLCMD) | ||
2290 | err = -ENOTTY; | ||
2291 | |||
2292 | if (has_array_args) { | ||
2293 | *kernel_ptr = user_ptr; | ||
2294 | if (copy_to_user(user_ptr, mbuf, array_size)) | ||
2295 | err = -EFAULT; | ||
2296 | goto out_array_args; | ||
2297 | } | ||
2298 | /* VIDIOC_QUERY_DV_TIMINGS can return an error, but still have valid | ||
2299 | results that must be returned. */ | ||
2300 | if (err < 0 && cmd != VIDIOC_QUERY_DV_TIMINGS) | ||
2301 | goto out; | ||
2302 | |||
2303 | out_array_args: | ||
2304 | /* Copy results into user buffer */ | ||
2305 | switch (_IOC_DIR(cmd)) { | ||
2306 | case _IOC_READ: | ||
2307 | case (_IOC_WRITE | _IOC_READ): | ||
2308 | if (copy_to_user((void __user *)arg, parg, _IOC_SIZE(cmd))) | ||
2309 | err = -EFAULT; | ||
2310 | break; | ||
2311 | } | ||
2312 | |||
2313 | out: | ||
2314 | kfree(mbuf); | ||
2315 | return err; | ||
2316 | } | ||
2317 | EXPORT_SYMBOL(video_usercopy); | ||
2318 | |||
2319 | long video_ioctl2(struct file *file, | ||
2320 | unsigned int cmd, unsigned long arg) | ||
2321 | { | ||
2322 | return video_usercopy(file, cmd, arg, __video_do_ioctl); | ||
2323 | } | ||
2324 | EXPORT_SYMBOL(video_ioctl2); | ||