This source file includes following definitions.
- v4l2_norm_to_name
- v4l2_video_std_frame_period
- v4l2_video_std_construct
- v4l_video_std_enumstd
- v4l_print_querycap
- v4l_print_enuminput
- v4l_print_enumoutput
- v4l_print_audio
- v4l_print_audioout
- v4l_print_fmtdesc
- v4l_print_format
- v4l_print_framebuffer
- v4l_print_buftype
- v4l_print_modulator
- v4l_print_tuner
- v4l_print_frequency
- v4l_print_standard
- v4l_print_std
- v4l_print_hw_freq_seek
- v4l_print_requestbuffers
- v4l_print_buffer
- v4l_print_exportbuffer
- v4l_print_create_buffers
- v4l_print_streamparm
- v4l_print_queryctrl
- v4l_print_query_ext_ctrl
- v4l_print_querymenu
- v4l_print_control
- v4l_print_ext_controls
- v4l_print_cropcap
- v4l_print_crop
- v4l_print_selection
- v4l_print_jpegcompression
- v4l_print_enc_idx
- v4l_print_encoder_cmd
- v4l_print_decoder_cmd
- v4l_print_dbg_chip_info
- v4l_print_dbg_register
- v4l_print_dv_timings
- v4l_print_enum_dv_timings
- v4l_print_dv_timings_cap
- v4l_print_frmsizeenum
- v4l_print_frmivalenum
- v4l_print_event
- v4l_print_event_subscription
- v4l_print_sliced_vbi_cap
- v4l_print_freq_band
- v4l_print_edid
- v4l_print_u32
- v4l_print_newline
- v4l_print_default
- check_ext_ctrls
- check_fmt
- v4l_sanitize_format
- v4l_querycap
- v4l_s_input
- v4l_s_output
- v4l_g_priority
- v4l_s_priority
- v4l_enuminput
- v4l_enumoutput
- v4l_fill_fmtdesc
- v4l_enum_fmt
- v4l_pix_format_touch
- v4l_g_fmt
- v4l_s_fmt
- v4l_try_fmt
- v4l_streamon
- v4l_streamoff
- v4l_g_tuner
- v4l_s_tuner
- v4l_g_modulator
- v4l_s_modulator
- v4l_g_frequency
- v4l_s_frequency
- v4l_enumstd
- v4l_s_std
- v4l_querystd
- v4l_s_hw_freq_seek
- v4l_overlay
- v4l_reqbufs
- v4l_querybuf
- v4l_qbuf
- v4l_dqbuf
- v4l_create_bufs
- v4l_prepare_buf
- v4l_g_parm
- v4l_s_parm
- v4l_queryctrl
- v4l_query_ext_ctrl
- v4l_querymenu
- v4l_g_ctrl
- v4l_s_ctrl
- v4l_g_ext_ctrls
- v4l_s_ext_ctrls
- v4l_try_ext_ctrls
- v4l_g_selection
- v4l_s_selection
- v4l_g_crop
- v4l_s_crop
- v4l_cropcap
- v4l_log_status
- v4l_dbg_g_register
- v4l_dbg_s_register
- v4l_dbg_g_chip_info
- v4l_dqevent
- v4l_subscribe_event
- v4l_unsubscribe_event
- v4l_g_sliced_vbi_cap
- v4l_enum_freq_bands
- v4l2_is_known_ioctl
- v4l2_ioctl_get_lock
- v4l_printk_ioctl
- __video_do_ioctl
- check_array_args
- video_usercopy
- video_ioctl2
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11 #include <linux/mm.h>
12 #include <linux/module.h>
13 #include <linux/slab.h>
14 #include <linux/types.h>
15 #include <linux/kernel.h>
16 #include <linux/version.h>
17
18 #include <linux/videodev2.h>
19
20 #include <media/v4l2-common.h>
21 #include <media/v4l2-ioctl.h>
22 #include <media/v4l2-ctrls.h>
23 #include <media/v4l2-fh.h>
24 #include <media/v4l2-event.h>
25 #include <media/v4l2-device.h>
26 #include <media/videobuf2-v4l2.h>
27 #include <media/v4l2-mc.h>
28 #include <media/v4l2-mem2mem.h>
29
30 #include <trace/events/v4l2.h>
31
32
33
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 #define is_valid_ioctl(vfd, cmd) test_bit(_IOC_NR(cmd), (vfd)->valid_ioctls)
39
40 struct std_descr {
41 v4l2_std_id std;
42 const char *descr;
43 };
44
45 static const struct std_descr standards[] = {
46 { V4L2_STD_NTSC, "NTSC" },
47 { V4L2_STD_NTSC_M, "NTSC-M" },
48 { V4L2_STD_NTSC_M_JP, "NTSC-M-JP" },
49 { V4L2_STD_NTSC_M_KR, "NTSC-M-KR" },
50 { V4L2_STD_NTSC_443, "NTSC-443" },
51 { V4L2_STD_PAL, "PAL" },
52 { V4L2_STD_PAL_BG, "PAL-BG" },
53 { V4L2_STD_PAL_B, "PAL-B" },
54 { V4L2_STD_PAL_B1, "PAL-B1" },
55 { V4L2_STD_PAL_G, "PAL-G" },
56 { V4L2_STD_PAL_H, "PAL-H" },
57 { V4L2_STD_PAL_I, "PAL-I" },
58 { V4L2_STD_PAL_DK, "PAL-DK" },
59 { V4L2_STD_PAL_D, "PAL-D" },
60 { V4L2_STD_PAL_D1, "PAL-D1" },
61 { V4L2_STD_PAL_K, "PAL-K" },
62 { V4L2_STD_PAL_M, "PAL-M" },
63 { V4L2_STD_PAL_N, "PAL-N" },
64 { V4L2_STD_PAL_Nc, "PAL-Nc" },
65 { V4L2_STD_PAL_60, "PAL-60" },
66 { V4L2_STD_SECAM, "SECAM" },
67 { V4L2_STD_SECAM_B, "SECAM-B" },
68 { V4L2_STD_SECAM_G, "SECAM-G" },
69 { V4L2_STD_SECAM_H, "SECAM-H" },
70 { V4L2_STD_SECAM_DK, "SECAM-DK" },
71 { V4L2_STD_SECAM_D, "SECAM-D" },
72 { V4L2_STD_SECAM_K, "SECAM-K" },
73 { V4L2_STD_SECAM_K1, "SECAM-K1" },
74 { V4L2_STD_SECAM_L, "SECAM-L" },
75 { V4L2_STD_SECAM_LC, "SECAM-Lc" },
76 { 0, "Unknown" }
77 };
78
79
80
81 const char *v4l2_norm_to_name(v4l2_std_id id)
82 {
83 u32 myid = id;
84 int i;
85
86
87
88
89
90 BUG_ON(myid != id);
91
92 for (i = 0; standards[i].std; i++)
93 if (myid == standards[i].std)
94 break;
95 return standards[i].descr;
96 }
97 EXPORT_SYMBOL(v4l2_norm_to_name);
98
99
100 void v4l2_video_std_frame_period(int id, struct v4l2_fract *frameperiod)
101 {
102 if (id & V4L2_STD_525_60) {
103 frameperiod->numerator = 1001;
104 frameperiod->denominator = 30000;
105 } else {
106 frameperiod->numerator = 1;
107 frameperiod->denominator = 25;
108 }
109 }
110 EXPORT_SYMBOL(v4l2_video_std_frame_period);
111
112
113
114 int v4l2_video_std_construct(struct v4l2_standard *vs,
115 int id, const char *name)
116 {
117 vs->id = id;
118 v4l2_video_std_frame_period(id, &vs->frameperiod);
119 vs->framelines = (id & V4L2_STD_525_60) ? 525 : 625;
120 strscpy(vs->name, name, sizeof(vs->name));
121 return 0;
122 }
123 EXPORT_SYMBOL(v4l2_video_std_construct);
124
125
126
127 int v4l_video_std_enumstd(struct v4l2_standard *vs, v4l2_std_id id)
128 {
129 v4l2_std_id curr_id = 0;
130 unsigned int index = vs->index, i, j = 0;
131 const char *descr = "";
132
133
134
135 if (id == 0)
136 return -ENODATA;
137
138
139 for (i = 0; i <= index && id; i++) {
140
141
142 while ((id & standards[j].std) != standards[j].std)
143 j++;
144 curr_id = standards[j].std;
145 descr = standards[j].descr;
146 j++;
147 if (curr_id == 0)
148 break;
149 if (curr_id != V4L2_STD_PAL &&
150 curr_id != V4L2_STD_SECAM &&
151 curr_id != V4L2_STD_NTSC)
152 id &= ~curr_id;
153 }
154 if (i <= index)
155 return -EINVAL;
156
157 v4l2_video_std_construct(vs, curr_id, descr);
158 return 0;
159 }
160
161
162
163
164 const char *v4l2_field_names[] = {
165 [V4L2_FIELD_ANY] = "any",
166 [V4L2_FIELD_NONE] = "none",
167 [V4L2_FIELD_TOP] = "top",
168 [V4L2_FIELD_BOTTOM] = "bottom",
169 [V4L2_FIELD_INTERLACED] = "interlaced",
170 [V4L2_FIELD_SEQ_TB] = "seq-tb",
171 [V4L2_FIELD_SEQ_BT] = "seq-bt",
172 [V4L2_FIELD_ALTERNATE] = "alternate",
173 [V4L2_FIELD_INTERLACED_TB] = "interlaced-tb",
174 [V4L2_FIELD_INTERLACED_BT] = "interlaced-bt",
175 };
176 EXPORT_SYMBOL(v4l2_field_names);
177
178 const char *v4l2_type_names[] = {
179 [0] = "0",
180 [V4L2_BUF_TYPE_VIDEO_CAPTURE] = "vid-cap",
181 [V4L2_BUF_TYPE_VIDEO_OVERLAY] = "vid-overlay",
182 [V4L2_BUF_TYPE_VIDEO_OUTPUT] = "vid-out",
183 [V4L2_BUF_TYPE_VBI_CAPTURE] = "vbi-cap",
184 [V4L2_BUF_TYPE_VBI_OUTPUT] = "vbi-out",
185 [V4L2_BUF_TYPE_SLICED_VBI_CAPTURE] = "sliced-vbi-cap",
186 [V4L2_BUF_TYPE_SLICED_VBI_OUTPUT] = "sliced-vbi-out",
187 [V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY] = "vid-out-overlay",
188 [V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE] = "vid-cap-mplane",
189 [V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE] = "vid-out-mplane",
190 [V4L2_BUF_TYPE_SDR_CAPTURE] = "sdr-cap",
191 [V4L2_BUF_TYPE_SDR_OUTPUT] = "sdr-out",
192 [V4L2_BUF_TYPE_META_CAPTURE] = "meta-cap",
193 [V4L2_BUF_TYPE_META_OUTPUT] = "meta-out",
194 };
195 EXPORT_SYMBOL(v4l2_type_names);
196
197 static const char *v4l2_memory_names[] = {
198 [V4L2_MEMORY_MMAP] = "mmap",
199 [V4L2_MEMORY_USERPTR] = "userptr",
200 [V4L2_MEMORY_OVERLAY] = "overlay",
201 [V4L2_MEMORY_DMABUF] = "dmabuf",
202 };
203
204 #define prt_names(a, arr) (((unsigned)(a)) < ARRAY_SIZE(arr) ? arr[a] : "unknown")
205
206
207
208
209 static void v4l_print_querycap(const void *arg, bool write_only)
210 {
211 const struct v4l2_capability *p = arg;
212
213 pr_cont("driver=%.*s, card=%.*s, bus=%.*s, version=0x%08x, capabilities=0x%08x, device_caps=0x%08x\n",
214 (int)sizeof(p->driver), p->driver,
215 (int)sizeof(p->card), p->card,
216 (int)sizeof(p->bus_info), p->bus_info,
217 p->version, p->capabilities, p->device_caps);
218 }
219
220 static void v4l_print_enuminput(const void *arg, bool write_only)
221 {
222 const struct v4l2_input *p = arg;
223
224 pr_cont("index=%u, name=%.*s, type=%u, audioset=0x%x, tuner=%u, std=0x%08Lx, status=0x%x, capabilities=0x%x\n",
225 p->index, (int)sizeof(p->name), p->name, p->type, p->audioset,
226 p->tuner, (unsigned long long)p->std, p->status,
227 p->capabilities);
228 }
229
230 static void v4l_print_enumoutput(const void *arg, bool write_only)
231 {
232 const struct v4l2_output *p = arg;
233
234 pr_cont("index=%u, name=%.*s, type=%u, audioset=0x%x, modulator=%u, std=0x%08Lx, capabilities=0x%x\n",
235 p->index, (int)sizeof(p->name), p->name, p->type, p->audioset,
236 p->modulator, (unsigned long long)p->std, p->capabilities);
237 }
238
239 static void v4l_print_audio(const void *arg, bool write_only)
240 {
241 const struct v4l2_audio *p = arg;
242
243 if (write_only)
244 pr_cont("index=%u, mode=0x%x\n", p->index, p->mode);
245 else
246 pr_cont("index=%u, name=%.*s, capability=0x%x, mode=0x%x\n",
247 p->index, (int)sizeof(p->name), p->name,
248 p->capability, p->mode);
249 }
250
251 static void v4l_print_audioout(const void *arg, bool write_only)
252 {
253 const struct v4l2_audioout *p = arg;
254
255 if (write_only)
256 pr_cont("index=%u\n", p->index);
257 else
258 pr_cont("index=%u, name=%.*s, capability=0x%x, mode=0x%x\n",
259 p->index, (int)sizeof(p->name), p->name,
260 p->capability, p->mode);
261 }
262
263 static void v4l_print_fmtdesc(const void *arg, bool write_only)
264 {
265 const struct v4l2_fmtdesc *p = arg;
266
267 pr_cont("index=%u, type=%s, flags=0x%x, pixelformat=%c%c%c%c, description='%.*s'\n",
268 p->index, prt_names(p->type, v4l2_type_names),
269 p->flags, (p->pixelformat & 0xff),
270 (p->pixelformat >> 8) & 0xff,
271 (p->pixelformat >> 16) & 0xff,
272 (p->pixelformat >> 24) & 0xff,
273 (int)sizeof(p->description), p->description);
274 }
275
276 static void v4l_print_format(const void *arg, bool write_only)
277 {
278 const struct v4l2_format *p = arg;
279 const struct v4l2_pix_format *pix;
280 const struct v4l2_pix_format_mplane *mp;
281 const struct v4l2_vbi_format *vbi;
282 const struct v4l2_sliced_vbi_format *sliced;
283 const struct v4l2_window *win;
284 const struct v4l2_sdr_format *sdr;
285 const struct v4l2_meta_format *meta;
286 u32 planes;
287 unsigned i;
288
289 pr_cont("type=%s", prt_names(p->type, v4l2_type_names));
290 switch (p->type) {
291 case V4L2_BUF_TYPE_VIDEO_CAPTURE:
292 case V4L2_BUF_TYPE_VIDEO_OUTPUT:
293 pix = &p->fmt.pix;
294 pr_cont(", width=%u, height=%u, pixelformat=%c%c%c%c, field=%s, bytesperline=%u, sizeimage=%u, colorspace=%d, flags=0x%x, ycbcr_enc=%u, quantization=%u, xfer_func=%u\n",
295 pix->width, pix->height,
296 (pix->pixelformat & 0xff),
297 (pix->pixelformat >> 8) & 0xff,
298 (pix->pixelformat >> 16) & 0xff,
299 (pix->pixelformat >> 24) & 0xff,
300 prt_names(pix->field, v4l2_field_names),
301 pix->bytesperline, pix->sizeimage,
302 pix->colorspace, pix->flags, pix->ycbcr_enc,
303 pix->quantization, pix->xfer_func);
304 break;
305 case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE:
306 case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE:
307 mp = &p->fmt.pix_mp;
308 pr_cont(", width=%u, height=%u, format=%c%c%c%c, field=%s, colorspace=%d, num_planes=%u, flags=0x%x, ycbcr_enc=%u, quantization=%u, xfer_func=%u\n",
309 mp->width, mp->height,
310 (mp->pixelformat & 0xff),
311 (mp->pixelformat >> 8) & 0xff,
312 (mp->pixelformat >> 16) & 0xff,
313 (mp->pixelformat >> 24) & 0xff,
314 prt_names(mp->field, v4l2_field_names),
315 mp->colorspace, mp->num_planes, mp->flags,
316 mp->ycbcr_enc, mp->quantization, mp->xfer_func);
317 planes = min_t(u32, mp->num_planes, VIDEO_MAX_PLANES);
318 for (i = 0; i < planes; i++)
319 printk(KERN_DEBUG "plane %u: bytesperline=%u sizeimage=%u\n", i,
320 mp->plane_fmt[i].bytesperline,
321 mp->plane_fmt[i].sizeimage);
322 break;
323 case V4L2_BUF_TYPE_VIDEO_OVERLAY:
324 case V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY:
325 win = &p->fmt.win;
326
327
328
329 pr_cont(", wxh=%dx%d, x,y=%d,%d, field=%s, chromakey=0x%08x, clipcount=%u, clips=%p, bitmap=%p, global_alpha=0x%02x\n",
330 win->w.width, win->w.height, win->w.left, win->w.top,
331 prt_names(win->field, v4l2_field_names),
332 win->chromakey, win->clipcount, win->clips,
333 win->bitmap, win->global_alpha);
334 break;
335 case V4L2_BUF_TYPE_VBI_CAPTURE:
336 case V4L2_BUF_TYPE_VBI_OUTPUT:
337 vbi = &p->fmt.vbi;
338 pr_cont(", sampling_rate=%u, offset=%u, samples_per_line=%u, sample_format=%c%c%c%c, start=%u,%u, count=%u,%u\n",
339 vbi->sampling_rate, vbi->offset,
340 vbi->samples_per_line,
341 (vbi->sample_format & 0xff),
342 (vbi->sample_format >> 8) & 0xff,
343 (vbi->sample_format >> 16) & 0xff,
344 (vbi->sample_format >> 24) & 0xff,
345 vbi->start[0], vbi->start[1],
346 vbi->count[0], vbi->count[1]);
347 break;
348 case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE:
349 case V4L2_BUF_TYPE_SLICED_VBI_OUTPUT:
350 sliced = &p->fmt.sliced;
351 pr_cont(", service_set=0x%08x, io_size=%d\n",
352 sliced->service_set, sliced->io_size);
353 for (i = 0; i < 24; i++)
354 printk(KERN_DEBUG "line[%02u]=0x%04x, 0x%04x\n", i,
355 sliced->service_lines[0][i],
356 sliced->service_lines[1][i]);
357 break;
358 case V4L2_BUF_TYPE_SDR_CAPTURE:
359 case V4L2_BUF_TYPE_SDR_OUTPUT:
360 sdr = &p->fmt.sdr;
361 pr_cont(", pixelformat=%c%c%c%c\n",
362 (sdr->pixelformat >> 0) & 0xff,
363 (sdr->pixelformat >> 8) & 0xff,
364 (sdr->pixelformat >> 16) & 0xff,
365 (sdr->pixelformat >> 24) & 0xff);
366 break;
367 case V4L2_BUF_TYPE_META_CAPTURE:
368 case V4L2_BUF_TYPE_META_OUTPUT:
369 meta = &p->fmt.meta;
370 pr_cont(", dataformat=%c%c%c%c, buffersize=%u\n",
371 (meta->dataformat >> 0) & 0xff,
372 (meta->dataformat >> 8) & 0xff,
373 (meta->dataformat >> 16) & 0xff,
374 (meta->dataformat >> 24) & 0xff,
375 meta->buffersize);
376 break;
377 }
378 }
379
380 static void v4l_print_framebuffer(const void *arg, bool write_only)
381 {
382 const struct v4l2_framebuffer *p = arg;
383
384 pr_cont("capability=0x%x, flags=0x%x, base=0x%p, width=%u, height=%u, pixelformat=%c%c%c%c, bytesperline=%u, sizeimage=%u, colorspace=%d\n",
385 p->capability, p->flags, p->base,
386 p->fmt.width, p->fmt.height,
387 (p->fmt.pixelformat & 0xff),
388 (p->fmt.pixelformat >> 8) & 0xff,
389 (p->fmt.pixelformat >> 16) & 0xff,
390 (p->fmt.pixelformat >> 24) & 0xff,
391 p->fmt.bytesperline, p->fmt.sizeimage,
392 p->fmt.colorspace);
393 }
394
395 static void v4l_print_buftype(const void *arg, bool write_only)
396 {
397 pr_cont("type=%s\n", prt_names(*(u32 *)arg, v4l2_type_names));
398 }
399
400 static void v4l_print_modulator(const void *arg, bool write_only)
401 {
402 const struct v4l2_modulator *p = arg;
403
404 if (write_only)
405 pr_cont("index=%u, txsubchans=0x%x\n", p->index, p->txsubchans);
406 else
407 pr_cont("index=%u, name=%.*s, capability=0x%x, rangelow=%u, rangehigh=%u, txsubchans=0x%x\n",
408 p->index, (int)sizeof(p->name), p->name, p->capability,
409 p->rangelow, p->rangehigh, p->txsubchans);
410 }
411
412 static void v4l_print_tuner(const void *arg, bool write_only)
413 {
414 const struct v4l2_tuner *p = arg;
415
416 if (write_only)
417 pr_cont("index=%u, audmode=%u\n", p->index, p->audmode);
418 else
419 pr_cont("index=%u, name=%.*s, type=%u, capability=0x%x, rangelow=%u, rangehigh=%u, signal=%u, afc=%d, rxsubchans=0x%x, audmode=%u\n",
420 p->index, (int)sizeof(p->name), p->name, p->type,
421 p->capability, p->rangelow,
422 p->rangehigh, p->signal, p->afc,
423 p->rxsubchans, p->audmode);
424 }
425
426 static void v4l_print_frequency(const void *arg, bool write_only)
427 {
428 const struct v4l2_frequency *p = arg;
429
430 pr_cont("tuner=%u, type=%u, frequency=%u\n",
431 p->tuner, p->type, p->frequency);
432 }
433
434 static void v4l_print_standard(const void *arg, bool write_only)
435 {
436 const struct v4l2_standard *p = arg;
437
438 pr_cont("index=%u, id=0x%Lx, name=%.*s, fps=%u/%u, framelines=%u\n",
439 p->index,
440 (unsigned long long)p->id, (int)sizeof(p->name), p->name,
441 p->frameperiod.numerator,
442 p->frameperiod.denominator,
443 p->framelines);
444 }
445
446 static void v4l_print_std(const void *arg, bool write_only)
447 {
448 pr_cont("std=0x%08Lx\n", *(const long long unsigned *)arg);
449 }
450
451 static void v4l_print_hw_freq_seek(const void *arg, bool write_only)
452 {
453 const struct v4l2_hw_freq_seek *p = arg;
454
455 pr_cont("tuner=%u, type=%u, seek_upward=%u, wrap_around=%u, spacing=%u, rangelow=%u, rangehigh=%u\n",
456 p->tuner, p->type, p->seek_upward, p->wrap_around, p->spacing,
457 p->rangelow, p->rangehigh);
458 }
459
460 static void v4l_print_requestbuffers(const void *arg, bool write_only)
461 {
462 const struct v4l2_requestbuffers *p = arg;
463
464 pr_cont("count=%d, type=%s, memory=%s\n",
465 p->count,
466 prt_names(p->type, v4l2_type_names),
467 prt_names(p->memory, v4l2_memory_names));
468 }
469
470 static void v4l_print_buffer(const void *arg, bool write_only)
471 {
472 const struct v4l2_buffer *p = arg;
473 const struct v4l2_timecode *tc = &p->timecode;
474 const struct v4l2_plane *plane;
475 int i;
476
477 pr_cont("%02ld:%02d:%02d.%08ld index=%d, type=%s, request_fd=%d, flags=0x%08x, field=%s, sequence=%d, memory=%s",
478 p->timestamp.tv_sec / 3600,
479 (int)(p->timestamp.tv_sec / 60) % 60,
480 (int)(p->timestamp.tv_sec % 60),
481 (long)p->timestamp.tv_usec,
482 p->index,
483 prt_names(p->type, v4l2_type_names), p->request_fd,
484 p->flags, prt_names(p->field, v4l2_field_names),
485 p->sequence, prt_names(p->memory, v4l2_memory_names));
486
487 if (V4L2_TYPE_IS_MULTIPLANAR(p->type) && p->m.planes) {
488 pr_cont("\n");
489 for (i = 0; i < p->length; ++i) {
490 plane = &p->m.planes[i];
491 printk(KERN_DEBUG
492 "plane %d: bytesused=%d, data_offset=0x%08x, offset/userptr=0x%lx, length=%d\n",
493 i, plane->bytesused, plane->data_offset,
494 plane->m.userptr, plane->length);
495 }
496 } else {
497 pr_cont(", bytesused=%d, offset/userptr=0x%lx, length=%d\n",
498 p->bytesused, p->m.userptr, p->length);
499 }
500
501 printk(KERN_DEBUG "timecode=%02d:%02d:%02d type=%d, flags=0x%08x, frames=%d, userbits=0x%08x\n",
502 tc->hours, tc->minutes, tc->seconds,
503 tc->type, tc->flags, tc->frames, *(__u32 *)tc->userbits);
504 }
505
506 static void v4l_print_exportbuffer(const void *arg, bool write_only)
507 {
508 const struct v4l2_exportbuffer *p = arg;
509
510 pr_cont("fd=%d, type=%s, index=%u, plane=%u, flags=0x%08x\n",
511 p->fd, prt_names(p->type, v4l2_type_names),
512 p->index, p->plane, p->flags);
513 }
514
515 static void v4l_print_create_buffers(const void *arg, bool write_only)
516 {
517 const struct v4l2_create_buffers *p = arg;
518
519 pr_cont("index=%d, count=%d, memory=%s, ",
520 p->index, p->count,
521 prt_names(p->memory, v4l2_memory_names));
522 v4l_print_format(&p->format, write_only);
523 }
524
525 static void v4l_print_streamparm(const void *arg, bool write_only)
526 {
527 const struct v4l2_streamparm *p = arg;
528
529 pr_cont("type=%s", prt_names(p->type, v4l2_type_names));
530
531 if (p->type == V4L2_BUF_TYPE_VIDEO_CAPTURE ||
532 p->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) {
533 const struct v4l2_captureparm *c = &p->parm.capture;
534
535 pr_cont(", capability=0x%x, capturemode=0x%x, timeperframe=%d/%d, extendedmode=%d, readbuffers=%d\n",
536 c->capability, c->capturemode,
537 c->timeperframe.numerator, c->timeperframe.denominator,
538 c->extendedmode, c->readbuffers);
539 } else if (p->type == V4L2_BUF_TYPE_VIDEO_OUTPUT ||
540 p->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) {
541 const struct v4l2_outputparm *c = &p->parm.output;
542
543 pr_cont(", capability=0x%x, outputmode=0x%x, timeperframe=%d/%d, extendedmode=%d, writebuffers=%d\n",
544 c->capability, c->outputmode,
545 c->timeperframe.numerator, c->timeperframe.denominator,
546 c->extendedmode, c->writebuffers);
547 } else {
548 pr_cont("\n");
549 }
550 }
551
552 static void v4l_print_queryctrl(const void *arg, bool write_only)
553 {
554 const struct v4l2_queryctrl *p = arg;
555
556 pr_cont("id=0x%x, type=%d, name=%.*s, min/max=%d/%d, step=%d, default=%d, flags=0x%08x\n",
557 p->id, p->type, (int)sizeof(p->name), p->name,
558 p->minimum, p->maximum,
559 p->step, p->default_value, p->flags);
560 }
561
562 static void v4l_print_query_ext_ctrl(const void *arg, bool write_only)
563 {
564 const struct v4l2_query_ext_ctrl *p = arg;
565
566 pr_cont("id=0x%x, type=%d, name=%.*s, min/max=%lld/%lld, step=%lld, default=%lld, flags=0x%08x, elem_size=%u, elems=%u, nr_of_dims=%u, dims=%u,%u,%u,%u\n",
567 p->id, p->type, (int)sizeof(p->name), p->name,
568 p->minimum, p->maximum,
569 p->step, p->default_value, p->flags,
570 p->elem_size, p->elems, p->nr_of_dims,
571 p->dims[0], p->dims[1], p->dims[2], p->dims[3]);
572 }
573
574 static void v4l_print_querymenu(const void *arg, bool write_only)
575 {
576 const struct v4l2_querymenu *p = arg;
577
578 pr_cont("id=0x%x, index=%d\n", p->id, p->index);
579 }
580
581 static void v4l_print_control(const void *arg, bool write_only)
582 {
583 const struct v4l2_control *p = arg;
584
585 pr_cont("id=0x%x, value=%d\n", p->id, p->value);
586 }
587
588 static void v4l_print_ext_controls(const void *arg, bool write_only)
589 {
590 const struct v4l2_ext_controls *p = arg;
591 int i;
592
593 pr_cont("which=0x%x, count=%d, error_idx=%d, request_fd=%d",
594 p->which, p->count, p->error_idx, p->request_fd);
595 for (i = 0; i < p->count; i++) {
596 if (!p->controls[i].size)
597 pr_cont(", id/val=0x%x/0x%x",
598 p->controls[i].id, p->controls[i].value);
599 else
600 pr_cont(", id/size=0x%x/%u",
601 p->controls[i].id, p->controls[i].size);
602 }
603 pr_cont("\n");
604 }
605
606 static void v4l_print_cropcap(const void *arg, bool write_only)
607 {
608 const struct v4l2_cropcap *p = arg;
609
610 pr_cont("type=%s, bounds wxh=%dx%d, x,y=%d,%d, defrect wxh=%dx%d, x,y=%d,%d, pixelaspect %d/%d\n",
611 prt_names(p->type, v4l2_type_names),
612 p->bounds.width, p->bounds.height,
613 p->bounds.left, p->bounds.top,
614 p->defrect.width, p->defrect.height,
615 p->defrect.left, p->defrect.top,
616 p->pixelaspect.numerator, p->pixelaspect.denominator);
617 }
618
619 static void v4l_print_crop(const void *arg, bool write_only)
620 {
621 const struct v4l2_crop *p = arg;
622
623 pr_cont("type=%s, wxh=%dx%d, x,y=%d,%d\n",
624 prt_names(p->type, v4l2_type_names),
625 p->c.width, p->c.height,
626 p->c.left, p->c.top);
627 }
628
629 static void v4l_print_selection(const void *arg, bool write_only)
630 {
631 const struct v4l2_selection *p = arg;
632
633 pr_cont("type=%s, target=%d, flags=0x%x, wxh=%dx%d, x,y=%d,%d\n",
634 prt_names(p->type, v4l2_type_names),
635 p->target, p->flags,
636 p->r.width, p->r.height, p->r.left, p->r.top);
637 }
638
639 static void v4l_print_jpegcompression(const void *arg, bool write_only)
640 {
641 const struct v4l2_jpegcompression *p = arg;
642
643 pr_cont("quality=%d, APPn=%d, APP_len=%d, COM_len=%d, jpeg_markers=0x%x\n",
644 p->quality, p->APPn, p->APP_len,
645 p->COM_len, p->jpeg_markers);
646 }
647
648 static void v4l_print_enc_idx(const void *arg, bool write_only)
649 {
650 const struct v4l2_enc_idx *p = arg;
651
652 pr_cont("entries=%d, entries_cap=%d\n",
653 p->entries, p->entries_cap);
654 }
655
656 static void v4l_print_encoder_cmd(const void *arg, bool write_only)
657 {
658 const struct v4l2_encoder_cmd *p = arg;
659
660 pr_cont("cmd=%d, flags=0x%x\n",
661 p->cmd, p->flags);
662 }
663
664 static void v4l_print_decoder_cmd(const void *arg, bool write_only)
665 {
666 const struct v4l2_decoder_cmd *p = arg;
667
668 pr_cont("cmd=%d, flags=0x%x\n", p->cmd, p->flags);
669
670 if (p->cmd == V4L2_DEC_CMD_START)
671 pr_info("speed=%d, format=%u\n",
672 p->start.speed, p->start.format);
673 else if (p->cmd == V4L2_DEC_CMD_STOP)
674 pr_info("pts=%llu\n", p->stop.pts);
675 }
676
677 static void v4l_print_dbg_chip_info(const void *arg, bool write_only)
678 {
679 const struct v4l2_dbg_chip_info *p = arg;
680
681 pr_cont("type=%u, ", p->match.type);
682 if (p->match.type == V4L2_CHIP_MATCH_I2C_DRIVER)
683 pr_cont("name=%.*s, ",
684 (int)sizeof(p->match.name), p->match.name);
685 else
686 pr_cont("addr=%u, ", p->match.addr);
687 pr_cont("name=%.*s\n", (int)sizeof(p->name), p->name);
688 }
689
690 static void v4l_print_dbg_register(const void *arg, bool write_only)
691 {
692 const struct v4l2_dbg_register *p = arg;
693
694 pr_cont("type=%u, ", p->match.type);
695 if (p->match.type == V4L2_CHIP_MATCH_I2C_DRIVER)
696 pr_cont("name=%.*s, ",
697 (int)sizeof(p->match.name), p->match.name);
698 else
699 pr_cont("addr=%u, ", p->match.addr);
700 pr_cont("reg=0x%llx, val=0x%llx\n",
701 p->reg, p->val);
702 }
703
704 static void v4l_print_dv_timings(const void *arg, bool write_only)
705 {
706 const struct v4l2_dv_timings *p = arg;
707
708 switch (p->type) {
709 case V4L2_DV_BT_656_1120:
710 pr_cont("type=bt-656/1120, interlaced=%u, pixelclock=%llu, width=%u, height=%u, polarities=0x%x, hfrontporch=%u, hsync=%u, hbackporch=%u, vfrontporch=%u, vsync=%u, vbackporch=%u, il_vfrontporch=%u, il_vsync=%u, il_vbackporch=%u, standards=0x%x, flags=0x%x\n",
711 p->bt.interlaced, p->bt.pixelclock,
712 p->bt.width, p->bt.height,
713 p->bt.polarities, p->bt.hfrontporch,
714 p->bt.hsync, p->bt.hbackporch,
715 p->bt.vfrontporch, p->bt.vsync,
716 p->bt.vbackporch, p->bt.il_vfrontporch,
717 p->bt.il_vsync, p->bt.il_vbackporch,
718 p->bt.standards, p->bt.flags);
719 break;
720 default:
721 pr_cont("type=%d\n", p->type);
722 break;
723 }
724 }
725
726 static void v4l_print_enum_dv_timings(const void *arg, bool write_only)
727 {
728 const struct v4l2_enum_dv_timings *p = arg;
729
730 pr_cont("index=%u, ", p->index);
731 v4l_print_dv_timings(&p->timings, write_only);
732 }
733
734 static void v4l_print_dv_timings_cap(const void *arg, bool write_only)
735 {
736 const struct v4l2_dv_timings_cap *p = arg;
737
738 switch (p->type) {
739 case V4L2_DV_BT_656_1120:
740 pr_cont("type=bt-656/1120, width=%u-%u, height=%u-%u, pixelclock=%llu-%llu, standards=0x%x, capabilities=0x%x\n",
741 p->bt.min_width, p->bt.max_width,
742 p->bt.min_height, p->bt.max_height,
743 p->bt.min_pixelclock, p->bt.max_pixelclock,
744 p->bt.standards, p->bt.capabilities);
745 break;
746 default:
747 pr_cont("type=%u\n", p->type);
748 break;
749 }
750 }
751
752 static void v4l_print_frmsizeenum(const void *arg, bool write_only)
753 {
754 const struct v4l2_frmsizeenum *p = arg;
755
756 pr_cont("index=%u, pixelformat=%c%c%c%c, type=%u",
757 p->index,
758 (p->pixel_format & 0xff),
759 (p->pixel_format >> 8) & 0xff,
760 (p->pixel_format >> 16) & 0xff,
761 (p->pixel_format >> 24) & 0xff,
762 p->type);
763 switch (p->type) {
764 case V4L2_FRMSIZE_TYPE_DISCRETE:
765 pr_cont(", wxh=%ux%u\n",
766 p->discrete.width, p->discrete.height);
767 break;
768 case V4L2_FRMSIZE_TYPE_STEPWISE:
769 pr_cont(", min=%ux%u, max=%ux%u, step=%ux%u\n",
770 p->stepwise.min_width,
771 p->stepwise.min_height,
772 p->stepwise.max_width,
773 p->stepwise.max_height,
774 p->stepwise.step_width,
775 p->stepwise.step_height);
776 break;
777 case V4L2_FRMSIZE_TYPE_CONTINUOUS:
778
779 default:
780 pr_cont("\n");
781 break;
782 }
783 }
784
785 static void v4l_print_frmivalenum(const void *arg, bool write_only)
786 {
787 const struct v4l2_frmivalenum *p = arg;
788
789 pr_cont("index=%u, pixelformat=%c%c%c%c, wxh=%ux%u, type=%u",
790 p->index,
791 (p->pixel_format & 0xff),
792 (p->pixel_format >> 8) & 0xff,
793 (p->pixel_format >> 16) & 0xff,
794 (p->pixel_format >> 24) & 0xff,
795 p->width, p->height, p->type);
796 switch (p->type) {
797 case V4L2_FRMIVAL_TYPE_DISCRETE:
798 pr_cont(", fps=%d/%d\n",
799 p->discrete.numerator,
800 p->discrete.denominator);
801 break;
802 case V4L2_FRMIVAL_TYPE_STEPWISE:
803 pr_cont(", min=%d/%d, max=%d/%d, step=%d/%d\n",
804 p->stepwise.min.numerator,
805 p->stepwise.min.denominator,
806 p->stepwise.max.numerator,
807 p->stepwise.max.denominator,
808 p->stepwise.step.numerator,
809 p->stepwise.step.denominator);
810 break;
811 case V4L2_FRMIVAL_TYPE_CONTINUOUS:
812
813 default:
814 pr_cont("\n");
815 break;
816 }
817 }
818
819 static void v4l_print_event(const void *arg, bool write_only)
820 {
821 const struct v4l2_event *p = arg;
822 const struct v4l2_event_ctrl *c;
823
824 pr_cont("type=0x%x, pending=%u, sequence=%u, id=%u, timestamp=%lu.%9.9lu\n",
825 p->type, p->pending, p->sequence, p->id,
826 p->timestamp.tv_sec, p->timestamp.tv_nsec);
827 switch (p->type) {
828 case V4L2_EVENT_VSYNC:
829 printk(KERN_DEBUG "field=%s\n",
830 prt_names(p->u.vsync.field, v4l2_field_names));
831 break;
832 case V4L2_EVENT_CTRL:
833 c = &p->u.ctrl;
834 printk(KERN_DEBUG "changes=0x%x, type=%u, ",
835 c->changes, c->type);
836 if (c->type == V4L2_CTRL_TYPE_INTEGER64)
837 pr_cont("value64=%lld, ", c->value64);
838 else
839 pr_cont("value=%d, ", c->value);
840 pr_cont("flags=0x%x, minimum=%d, maximum=%d, step=%d, default_value=%d\n",
841 c->flags, c->minimum, c->maximum,
842 c->step, c->default_value);
843 break;
844 case V4L2_EVENT_FRAME_SYNC:
845 pr_cont("frame_sequence=%u\n",
846 p->u.frame_sync.frame_sequence);
847 break;
848 }
849 }
850
851 static void v4l_print_event_subscription(const void *arg, bool write_only)
852 {
853 const struct v4l2_event_subscription *p = arg;
854
855 pr_cont("type=0x%x, id=0x%x, flags=0x%x\n",
856 p->type, p->id, p->flags);
857 }
858
859 static void v4l_print_sliced_vbi_cap(const void *arg, bool write_only)
860 {
861 const struct v4l2_sliced_vbi_cap *p = arg;
862 int i;
863
864 pr_cont("type=%s, service_set=0x%08x\n",
865 prt_names(p->type, v4l2_type_names), p->service_set);
866 for (i = 0; i < 24; i++)
867 printk(KERN_DEBUG "line[%02u]=0x%04x, 0x%04x\n", i,
868 p->service_lines[0][i],
869 p->service_lines[1][i]);
870 }
871
872 static void v4l_print_freq_band(const void *arg, bool write_only)
873 {
874 const struct v4l2_frequency_band *p = arg;
875
876 pr_cont("tuner=%u, type=%u, index=%u, capability=0x%x, rangelow=%u, rangehigh=%u, modulation=0x%x\n",
877 p->tuner, p->type, p->index,
878 p->capability, p->rangelow,
879 p->rangehigh, p->modulation);
880 }
881
882 static void v4l_print_edid(const void *arg, bool write_only)
883 {
884 const struct v4l2_edid *p = arg;
885
886 pr_cont("pad=%u, start_block=%u, blocks=%u\n",
887 p->pad, p->start_block, p->blocks);
888 }
889
890 static void v4l_print_u32(const void *arg, bool write_only)
891 {
892 pr_cont("value=%u\n", *(const u32 *)arg);
893 }
894
895 static void v4l_print_newline(const void *arg, bool write_only)
896 {
897 pr_cont("\n");
898 }
899
900 static void v4l_print_default(const void *arg, bool write_only)
901 {
902 pr_cont("driver-specific ioctl\n");
903 }
904
905 static int check_ext_ctrls(struct v4l2_ext_controls *c, int allow_priv)
906 {
907 __u32 i;
908
909
910 c->reserved[0] = 0;
911 for (i = 0; i < c->count; i++)
912 c->controls[i].reserved2[0] = 0;
913
914
915
916
917
918
919 if (!allow_priv && c->which == V4L2_CID_PRIVATE_BASE)
920 return 0;
921 if (!c->which)
922 return 1;
923
924 for (i = 0; i < c->count; i++) {
925 if (V4L2_CTRL_ID2WHICH(c->controls[i].id) != c->which) {
926 c->error_idx = i;
927 return 0;
928 }
929 }
930 return 1;
931 }
932
933 static int check_fmt(struct file *file, enum v4l2_buf_type type)
934 {
935 struct video_device *vfd = video_devdata(file);
936 const struct v4l2_ioctl_ops *ops = vfd->ioctl_ops;
937 bool is_vid = vfd->vfl_type == VFL_TYPE_GRABBER;
938 bool is_vbi = vfd->vfl_type == VFL_TYPE_VBI;
939 bool is_sdr = vfd->vfl_type == VFL_TYPE_SDR;
940 bool is_tch = vfd->vfl_type == VFL_TYPE_TOUCH;
941 bool is_rx = vfd->vfl_dir != VFL_DIR_TX;
942 bool is_tx = vfd->vfl_dir != VFL_DIR_RX;
943
944 if (ops == NULL)
945 return -EINVAL;
946
947 switch (type) {
948 case V4L2_BUF_TYPE_VIDEO_CAPTURE:
949 if ((is_vid || is_tch) && is_rx &&
950 (ops->vidioc_g_fmt_vid_cap || ops->vidioc_g_fmt_vid_cap_mplane))
951 return 0;
952 break;
953 case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE:
954 if (is_vid && is_rx && ops->vidioc_g_fmt_vid_cap_mplane)
955 return 0;
956 break;
957 case V4L2_BUF_TYPE_VIDEO_OVERLAY:
958 if (is_vid && is_rx && ops->vidioc_g_fmt_vid_overlay)
959 return 0;
960 break;
961 case V4L2_BUF_TYPE_VIDEO_OUTPUT:
962 if (is_vid && is_tx &&
963 (ops->vidioc_g_fmt_vid_out || ops->vidioc_g_fmt_vid_out_mplane))
964 return 0;
965 break;
966 case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE:
967 if (is_vid && is_tx && ops->vidioc_g_fmt_vid_out_mplane)
968 return 0;
969 break;
970 case V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY:
971 if (is_vid && is_tx && ops->vidioc_g_fmt_vid_out_overlay)
972 return 0;
973 break;
974 case V4L2_BUF_TYPE_VBI_CAPTURE:
975 if (is_vbi && is_rx && ops->vidioc_g_fmt_vbi_cap)
976 return 0;
977 break;
978 case V4L2_BUF_TYPE_VBI_OUTPUT:
979 if (is_vbi && is_tx && ops->vidioc_g_fmt_vbi_out)
980 return 0;
981 break;
982 case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE:
983 if (is_vbi && is_rx && ops->vidioc_g_fmt_sliced_vbi_cap)
984 return 0;
985 break;
986 case V4L2_BUF_TYPE_SLICED_VBI_OUTPUT:
987 if (is_vbi && is_tx && ops->vidioc_g_fmt_sliced_vbi_out)
988 return 0;
989 break;
990 case V4L2_BUF_TYPE_SDR_CAPTURE:
991 if (is_sdr && is_rx && ops->vidioc_g_fmt_sdr_cap)
992 return 0;
993 break;
994 case V4L2_BUF_TYPE_SDR_OUTPUT:
995 if (is_sdr && is_tx && ops->vidioc_g_fmt_sdr_out)
996 return 0;
997 break;
998 case V4L2_BUF_TYPE_META_CAPTURE:
999 if (is_vid && is_rx && ops->vidioc_g_fmt_meta_cap)
1000 return 0;
1001 break;
1002 case V4L2_BUF_TYPE_META_OUTPUT:
1003 if (is_vid && is_tx && ops->vidioc_g_fmt_meta_out)
1004 return 0;
1005 break;
1006 default:
1007 break;
1008 }
1009 return -EINVAL;
1010 }
1011
1012 static void v4l_sanitize_format(struct v4l2_format *fmt)
1013 {
1014 unsigned int offset;
1015
1016
1017 if (fmt->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE ||
1018 fmt->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE)
1019 fmt->fmt.pix_mp.num_planes = min_t(u32, fmt->fmt.pix_mp.num_planes,
1020 VIDEO_MAX_PLANES);
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032 if (fmt->type != V4L2_BUF_TYPE_VIDEO_CAPTURE &&
1033 fmt->type != V4L2_BUF_TYPE_VIDEO_OUTPUT)
1034 return;
1035
1036 if (fmt->fmt.pix.priv == V4L2_PIX_FMT_PRIV_MAGIC)
1037 return;
1038
1039 fmt->fmt.pix.priv = V4L2_PIX_FMT_PRIV_MAGIC;
1040
1041 offset = offsetof(struct v4l2_pix_format, priv)
1042 + sizeof(fmt->fmt.pix.priv);
1043 memset(((void *)&fmt->fmt.pix) + offset, 0,
1044 sizeof(fmt->fmt.pix) - offset);
1045 }
1046
1047 static int v4l_querycap(const struct v4l2_ioctl_ops *ops,
1048 struct file *file, void *fh, void *arg)
1049 {
1050 struct v4l2_capability *cap = (struct v4l2_capability *)arg;
1051 struct video_device *vfd = video_devdata(file);
1052 int ret;
1053
1054 cap->version = LINUX_VERSION_CODE;
1055 cap->device_caps = vfd->device_caps;
1056 cap->capabilities = vfd->device_caps | V4L2_CAP_DEVICE_CAPS;
1057
1058 ret = ops->vidioc_querycap(file, fh, cap);
1059
1060
1061
1062
1063
1064 WARN_ON(cap->device_caps != vfd->device_caps);
1065
1066
1067
1068
1069 WARN_ON((cap->capabilities &
1070 (vfd->device_caps | V4L2_CAP_DEVICE_CAPS)) !=
1071 (vfd->device_caps | V4L2_CAP_DEVICE_CAPS));
1072 cap->capabilities |= V4L2_CAP_EXT_PIX_FORMAT;
1073 cap->device_caps |= V4L2_CAP_EXT_PIX_FORMAT;
1074
1075 return ret;
1076 }
1077
1078 static int v4l_s_input(const struct v4l2_ioctl_ops *ops,
1079 struct file *file, void *fh, void *arg)
1080 {
1081 struct video_device *vfd = video_devdata(file);
1082 int ret;
1083
1084 ret = v4l_enable_media_source(vfd);
1085 if (ret)
1086 return ret;
1087 return ops->vidioc_s_input(file, fh, *(unsigned int *)arg);
1088 }
1089
1090 static int v4l_s_output(const struct v4l2_ioctl_ops *ops,
1091 struct file *file, void *fh, void *arg)
1092 {
1093 return ops->vidioc_s_output(file, fh, *(unsigned int *)arg);
1094 }
1095
1096 static int v4l_g_priority(const struct v4l2_ioctl_ops *ops,
1097 struct file *file, void *fh, void *arg)
1098 {
1099 struct video_device *vfd;
1100 u32 *p = arg;
1101
1102 vfd = video_devdata(file);
1103 *p = v4l2_prio_max(vfd->prio);
1104 return 0;
1105 }
1106
1107 static int v4l_s_priority(const struct v4l2_ioctl_ops *ops,
1108 struct file *file, void *fh, void *arg)
1109 {
1110 struct video_device *vfd;
1111 struct v4l2_fh *vfh;
1112 u32 *p = arg;
1113
1114 vfd = video_devdata(file);
1115 if (!test_bit(V4L2_FL_USES_V4L2_FH, &vfd->flags))
1116 return -ENOTTY;
1117 vfh = file->private_data;
1118 return v4l2_prio_change(vfd->prio, &vfh->prio, *p);
1119 }
1120
1121 static int v4l_enuminput(const struct v4l2_ioctl_ops *ops,
1122 struct file *file, void *fh, void *arg)
1123 {
1124 struct video_device *vfd = video_devdata(file);
1125 struct v4l2_input *p = arg;
1126
1127
1128
1129
1130
1131
1132
1133 if (is_valid_ioctl(vfd, VIDIOC_S_STD))
1134 p->capabilities |= V4L2_IN_CAP_STD;
1135
1136 return ops->vidioc_enum_input(file, fh, p);
1137 }
1138
1139 static int v4l_enumoutput(const struct v4l2_ioctl_ops *ops,
1140 struct file *file, void *fh, void *arg)
1141 {
1142 struct video_device *vfd = video_devdata(file);
1143 struct v4l2_output *p = arg;
1144
1145
1146
1147
1148
1149
1150
1151 if (is_valid_ioctl(vfd, VIDIOC_S_STD))
1152 p->capabilities |= V4L2_OUT_CAP_STD;
1153
1154 return ops->vidioc_enum_output(file, fh, p);
1155 }
1156
1157 static void v4l_fill_fmtdesc(struct v4l2_fmtdesc *fmt)
1158 {
1159 const unsigned sz = sizeof(fmt->description);
1160 const char *descr = NULL;
1161 u32 flags = 0;
1162
1163
1164
1165
1166
1167
1168
1169
1170
1171 switch (fmt->pixelformat) {
1172
1173 case V4L2_PIX_FMT_RGB332: descr = "8-bit RGB 3-3-2"; break;
1174 case V4L2_PIX_FMT_RGB444: descr = "16-bit A/XRGB 4-4-4-4"; break;
1175 case V4L2_PIX_FMT_ARGB444: descr = "16-bit ARGB 4-4-4-4"; break;
1176 case V4L2_PIX_FMT_XRGB444: descr = "16-bit XRGB 4-4-4-4"; break;
1177 case V4L2_PIX_FMT_RGBA444: descr = "16-bit RGBA 4-4-4-4"; break;
1178 case V4L2_PIX_FMT_RGBX444: descr = "16-bit RGBX 4-4-4-4"; break;
1179 case V4L2_PIX_FMT_ABGR444: descr = "16-bit ABGR 4-4-4-4"; break;
1180 case V4L2_PIX_FMT_XBGR444: descr = "16-bit XBGR 4-4-4-4"; break;
1181 case V4L2_PIX_FMT_BGRA444: descr = "16-bit BGRA 4-4-4-4"; break;
1182 case V4L2_PIX_FMT_BGRX444: descr = "16-bit BGRX 4-4-4-4"; break;
1183 case V4L2_PIX_FMT_RGB555: descr = "16-bit A/XRGB 1-5-5-5"; break;
1184 case V4L2_PIX_FMT_ARGB555: descr = "16-bit ARGB 1-5-5-5"; break;
1185 case V4L2_PIX_FMT_XRGB555: descr = "16-bit XRGB 1-5-5-5"; break;
1186 case V4L2_PIX_FMT_ABGR555: descr = "16-bit ABGR 1-5-5-5"; break;
1187 case V4L2_PIX_FMT_XBGR555: descr = "16-bit XBGR 1-5-5-5"; break;
1188 case V4L2_PIX_FMT_RGBA555: descr = "16-bit RGBA 5-5-5-1"; break;
1189 case V4L2_PIX_FMT_RGBX555: descr = "16-bit RGBX 5-5-5-1"; break;
1190 case V4L2_PIX_FMT_BGRA555: descr = "16-bit BGRA 5-5-5-1"; break;
1191 case V4L2_PIX_FMT_BGRX555: descr = "16-bit BGRX 5-5-5-1"; break;
1192 case V4L2_PIX_FMT_RGB565: descr = "16-bit RGB 5-6-5"; break;
1193 case V4L2_PIX_FMT_RGB555X: descr = "16-bit A/XRGB 1-5-5-5 BE"; break;
1194 case V4L2_PIX_FMT_ARGB555X: descr = "16-bit ARGB 1-5-5-5 BE"; break;
1195 case V4L2_PIX_FMT_XRGB555X: descr = "16-bit XRGB 1-5-5-5 BE"; break;
1196 case V4L2_PIX_FMT_RGB565X: descr = "16-bit RGB 5-6-5 BE"; break;
1197 case V4L2_PIX_FMT_BGR666: descr = "18-bit BGRX 6-6-6-14"; break;
1198 case V4L2_PIX_FMT_BGR24: descr = "24-bit BGR 8-8-8"; break;
1199 case V4L2_PIX_FMT_RGB24: descr = "24-bit RGB 8-8-8"; break;
1200 case V4L2_PIX_FMT_BGR32: descr = "32-bit BGRA/X 8-8-8-8"; break;
1201 case V4L2_PIX_FMT_ABGR32: descr = "32-bit BGRA 8-8-8-8"; break;
1202 case V4L2_PIX_FMT_XBGR32: descr = "32-bit BGRX 8-8-8-8"; break;
1203 case V4L2_PIX_FMT_RGB32: descr = "32-bit A/XRGB 8-8-8-8"; break;
1204 case V4L2_PIX_FMT_ARGB32: descr = "32-bit ARGB 8-8-8-8"; break;
1205 case V4L2_PIX_FMT_XRGB32: descr = "32-bit XRGB 8-8-8-8"; break;
1206 case V4L2_PIX_FMT_BGRA32: descr = "32-bit ABGR 8-8-8-8"; break;
1207 case V4L2_PIX_FMT_BGRX32: descr = "32-bit XBGR 8-8-8-8"; break;
1208 case V4L2_PIX_FMT_RGBA32: descr = "32-bit RGBA 8-8-8-8"; break;
1209 case V4L2_PIX_FMT_RGBX32: descr = "32-bit RGBX 8-8-8-8"; break;
1210 case V4L2_PIX_FMT_GREY: descr = "8-bit Greyscale"; break;
1211 case V4L2_PIX_FMT_Y4: descr = "4-bit Greyscale"; break;
1212 case V4L2_PIX_FMT_Y6: descr = "6-bit Greyscale"; break;
1213 case V4L2_PIX_FMT_Y10: descr = "10-bit Greyscale"; break;
1214 case V4L2_PIX_FMT_Y12: descr = "12-bit Greyscale"; break;
1215 case V4L2_PIX_FMT_Y16: descr = "16-bit Greyscale"; break;
1216 case V4L2_PIX_FMT_Y16_BE: descr = "16-bit Greyscale BE"; break;
1217 case V4L2_PIX_FMT_Y10BPACK: descr = "10-bit Greyscale (Packed)"; break;
1218 case V4L2_PIX_FMT_Y10P: descr = "10-bit Greyscale (MIPI Packed)"; break;
1219 case V4L2_PIX_FMT_Y8I: descr = "Interleaved 8-bit Greyscale"; break;
1220 case V4L2_PIX_FMT_Y12I: descr = "Interleaved 12-bit Greyscale"; break;
1221 case V4L2_PIX_FMT_Z16: descr = "16-bit Depth"; break;
1222 case V4L2_PIX_FMT_INZI: descr = "Planar 10:16 Greyscale Depth"; break;
1223 case V4L2_PIX_FMT_CNF4: descr = "4-bit Depth Confidence (Packed)"; break;
1224 case V4L2_PIX_FMT_PAL8: descr = "8-bit Palette"; break;
1225 case V4L2_PIX_FMT_UV8: descr = "8-bit Chrominance UV 4-4"; break;
1226 case V4L2_PIX_FMT_YVU410: descr = "Planar YVU 4:1:0"; break;
1227 case V4L2_PIX_FMT_YVU420: descr = "Planar YVU 4:2:0"; break;
1228 case V4L2_PIX_FMT_YUYV: descr = "YUYV 4:2:2"; break;
1229 case V4L2_PIX_FMT_YYUV: descr = "YYUV 4:2:2"; break;
1230 case V4L2_PIX_FMT_YVYU: descr = "YVYU 4:2:2"; break;
1231 case V4L2_PIX_FMT_UYVY: descr = "UYVY 4:2:2"; break;
1232 case V4L2_PIX_FMT_VYUY: descr = "VYUY 4:2:2"; break;
1233 case V4L2_PIX_FMT_YUV422P: descr = "Planar YUV 4:2:2"; break;
1234 case V4L2_PIX_FMT_YUV411P: descr = "Planar YUV 4:1:1"; break;
1235 case V4L2_PIX_FMT_Y41P: descr = "YUV 4:1:1 (Packed)"; break;
1236 case V4L2_PIX_FMT_YUV444: descr = "16-bit A/XYUV 4-4-4-4"; break;
1237 case V4L2_PIX_FMT_YUV555: descr = "16-bit A/XYUV 1-5-5-5"; break;
1238 case V4L2_PIX_FMT_YUV565: descr = "16-bit YUV 5-6-5"; break;
1239 case V4L2_PIX_FMT_YUV32: descr = "32-bit A/XYUV 8-8-8-8"; break;
1240 case V4L2_PIX_FMT_AYUV32: descr = "32-bit AYUV 8-8-8-8"; break;
1241 case V4L2_PIX_FMT_XYUV32: descr = "32-bit XYUV 8-8-8-8"; break;
1242 case V4L2_PIX_FMT_VUYA32: descr = "32-bit VUYA 8-8-8-8"; break;
1243 case V4L2_PIX_FMT_VUYX32: descr = "32-bit VUYX 8-8-8-8"; break;
1244 case V4L2_PIX_FMT_YUV410: descr = "Planar YUV 4:1:0"; break;
1245 case V4L2_PIX_FMT_YUV420: descr = "Planar YUV 4:2:0"; break;
1246 case V4L2_PIX_FMT_HI240: descr = "8-bit Dithered RGB (BTTV)"; break;
1247 case V4L2_PIX_FMT_HM12: descr = "YUV 4:2:0 (16x16 Macroblocks)"; break;
1248 case V4L2_PIX_FMT_M420: descr = "YUV 4:2:0 (M420)"; break;
1249 case V4L2_PIX_FMT_NV12: descr = "Y/CbCr 4:2:0"; break;
1250 case V4L2_PIX_FMT_NV21: descr = "Y/CrCb 4:2:0"; break;
1251 case V4L2_PIX_FMT_NV16: descr = "Y/CbCr 4:2:2"; break;
1252 case V4L2_PIX_FMT_NV61: descr = "Y/CrCb 4:2:2"; break;
1253 case V4L2_PIX_FMT_NV24: descr = "Y/CbCr 4:4:4"; break;
1254 case V4L2_PIX_FMT_NV42: descr = "Y/CrCb 4:4:4"; break;
1255 case V4L2_PIX_FMT_NV12M: descr = "Y/CbCr 4:2:0 (N-C)"; break;
1256 case V4L2_PIX_FMT_NV21M: descr = "Y/CrCb 4:2:0 (N-C)"; break;
1257 case V4L2_PIX_FMT_NV16M: descr = "Y/CbCr 4:2:2 (N-C)"; break;
1258 case V4L2_PIX_FMT_NV61M: descr = "Y/CrCb 4:2:2 (N-C)"; break;
1259 case V4L2_PIX_FMT_NV12MT: descr = "Y/CbCr 4:2:0 (64x32 MB, N-C)"; break;
1260 case V4L2_PIX_FMT_NV12MT_16X16: descr = "Y/CbCr 4:2:0 (16x16 MB, N-C)"; break;
1261 case V4L2_PIX_FMT_YUV420M: descr = "Planar YUV 4:2:0 (N-C)"; break;
1262 case V4L2_PIX_FMT_YVU420M: descr = "Planar YVU 4:2:0 (N-C)"; break;
1263 case V4L2_PIX_FMT_YUV422M: descr = "Planar YUV 4:2:2 (N-C)"; break;
1264 case V4L2_PIX_FMT_YVU422M: descr = "Planar YVU 4:2:2 (N-C)"; break;
1265 case V4L2_PIX_FMT_YUV444M: descr = "Planar YUV 4:4:4 (N-C)"; break;
1266 case V4L2_PIX_FMT_YVU444M: descr = "Planar YVU 4:4:4 (N-C)"; break;
1267 case V4L2_PIX_FMT_SBGGR8: descr = "8-bit Bayer BGBG/GRGR"; break;
1268 case V4L2_PIX_FMT_SGBRG8: descr = "8-bit Bayer GBGB/RGRG"; break;
1269 case V4L2_PIX_FMT_SGRBG8: descr = "8-bit Bayer GRGR/BGBG"; break;
1270 case V4L2_PIX_FMT_SRGGB8: descr = "8-bit Bayer RGRG/GBGB"; break;
1271 case V4L2_PIX_FMT_SBGGR10: descr = "10-bit Bayer BGBG/GRGR"; break;
1272 case V4L2_PIX_FMT_SGBRG10: descr = "10-bit Bayer GBGB/RGRG"; break;
1273 case V4L2_PIX_FMT_SGRBG10: descr = "10-bit Bayer GRGR/BGBG"; break;
1274 case V4L2_PIX_FMT_SRGGB10: descr = "10-bit Bayer RGRG/GBGB"; break;
1275 case V4L2_PIX_FMT_SBGGR10P: descr = "10-bit Bayer BGBG/GRGR Packed"; break;
1276 case V4L2_PIX_FMT_SGBRG10P: descr = "10-bit Bayer GBGB/RGRG Packed"; break;
1277 case V4L2_PIX_FMT_SGRBG10P: descr = "10-bit Bayer GRGR/BGBG Packed"; break;
1278 case V4L2_PIX_FMT_SRGGB10P: descr = "10-bit Bayer RGRG/GBGB Packed"; break;
1279 case V4L2_PIX_FMT_IPU3_SBGGR10: descr = "10-bit bayer BGGR IPU3 Packed"; break;
1280 case V4L2_PIX_FMT_IPU3_SGBRG10: descr = "10-bit bayer GBRG IPU3 Packed"; break;
1281 case V4L2_PIX_FMT_IPU3_SGRBG10: descr = "10-bit bayer GRBG IPU3 Packed"; break;
1282 case V4L2_PIX_FMT_IPU3_SRGGB10: descr = "10-bit bayer RGGB IPU3 Packed"; break;
1283 case V4L2_PIX_FMT_SBGGR10ALAW8: descr = "8-bit Bayer BGBG/GRGR (A-law)"; break;
1284 case V4L2_PIX_FMT_SGBRG10ALAW8: descr = "8-bit Bayer GBGB/RGRG (A-law)"; break;
1285 case V4L2_PIX_FMT_SGRBG10ALAW8: descr = "8-bit Bayer GRGR/BGBG (A-law)"; break;
1286 case V4L2_PIX_FMT_SRGGB10ALAW8: descr = "8-bit Bayer RGRG/GBGB (A-law)"; break;
1287 case V4L2_PIX_FMT_SBGGR10DPCM8: descr = "8-bit Bayer BGBG/GRGR (DPCM)"; break;
1288 case V4L2_PIX_FMT_SGBRG10DPCM8: descr = "8-bit Bayer GBGB/RGRG (DPCM)"; break;
1289 case V4L2_PIX_FMT_SGRBG10DPCM8: descr = "8-bit Bayer GRGR/BGBG (DPCM)"; break;
1290 case V4L2_PIX_FMT_SRGGB10DPCM8: descr = "8-bit Bayer RGRG/GBGB (DPCM)"; break;
1291 case V4L2_PIX_FMT_SBGGR12: descr = "12-bit Bayer BGBG/GRGR"; break;
1292 case V4L2_PIX_FMT_SGBRG12: descr = "12-bit Bayer GBGB/RGRG"; break;
1293 case V4L2_PIX_FMT_SGRBG12: descr = "12-bit Bayer GRGR/BGBG"; break;
1294 case V4L2_PIX_FMT_SRGGB12: descr = "12-bit Bayer RGRG/GBGB"; break;
1295 case V4L2_PIX_FMT_SBGGR12P: descr = "12-bit Bayer BGBG/GRGR Packed"; break;
1296 case V4L2_PIX_FMT_SGBRG12P: descr = "12-bit Bayer GBGB/RGRG Packed"; break;
1297 case V4L2_PIX_FMT_SGRBG12P: descr = "12-bit Bayer GRGR/BGBG Packed"; break;
1298 case V4L2_PIX_FMT_SRGGB12P: descr = "12-bit Bayer RGRG/GBGB Packed"; break;
1299 case V4L2_PIX_FMT_SBGGR14P: descr = "14-bit Bayer BGBG/GRGR Packed"; break;
1300 case V4L2_PIX_FMT_SGBRG14P: descr = "14-bit Bayer GBGB/RGRG Packed"; break;
1301 case V4L2_PIX_FMT_SGRBG14P: descr = "14-bit Bayer GRGR/BGBG Packed"; break;
1302 case V4L2_PIX_FMT_SRGGB14P: descr = "14-bit Bayer RGRG/GBGB Packed"; break;
1303 case V4L2_PIX_FMT_SBGGR16: descr = "16-bit Bayer BGBG/GRGR"; break;
1304 case V4L2_PIX_FMT_SGBRG16: descr = "16-bit Bayer GBGB/RGRG"; break;
1305 case V4L2_PIX_FMT_SGRBG16: descr = "16-bit Bayer GRGR/BGBG"; break;
1306 case V4L2_PIX_FMT_SRGGB16: descr = "16-bit Bayer RGRG/GBGB"; break;
1307 case V4L2_PIX_FMT_SN9C20X_I420: descr = "GSPCA SN9C20X I420"; break;
1308 case V4L2_PIX_FMT_SPCA501: descr = "GSPCA SPCA501"; break;
1309 case V4L2_PIX_FMT_SPCA505: descr = "GSPCA SPCA505"; break;
1310 case V4L2_PIX_FMT_SPCA508: descr = "GSPCA SPCA508"; break;
1311 case V4L2_PIX_FMT_STV0680: descr = "GSPCA STV0680"; break;
1312 case V4L2_PIX_FMT_TM6000: descr = "A/V + VBI Mux Packet"; break;
1313 case V4L2_PIX_FMT_CIT_YYVYUY: descr = "GSPCA CIT YYVYUY"; break;
1314 case V4L2_PIX_FMT_KONICA420: descr = "GSPCA KONICA420"; break;
1315 case V4L2_PIX_FMT_HSV24: descr = "24-bit HSV 8-8-8"; break;
1316 case V4L2_PIX_FMT_HSV32: descr = "32-bit XHSV 8-8-8-8"; break;
1317 case V4L2_SDR_FMT_CU8: descr = "Complex U8"; break;
1318 case V4L2_SDR_FMT_CU16LE: descr = "Complex U16LE"; break;
1319 case V4L2_SDR_FMT_CS8: descr = "Complex S8"; break;
1320 case V4L2_SDR_FMT_CS14LE: descr = "Complex S14LE"; break;
1321 case V4L2_SDR_FMT_RU12LE: descr = "Real U12LE"; break;
1322 case V4L2_SDR_FMT_PCU16BE: descr = "Planar Complex U16BE"; break;
1323 case V4L2_SDR_FMT_PCU18BE: descr = "Planar Complex U18BE"; break;
1324 case V4L2_SDR_FMT_PCU20BE: descr = "Planar Complex U20BE"; break;
1325 case V4L2_TCH_FMT_DELTA_TD16: descr = "16-bit Signed Deltas"; break;
1326 case V4L2_TCH_FMT_DELTA_TD08: descr = "8-bit Signed Deltas"; break;
1327 case V4L2_TCH_FMT_TU16: descr = "16-bit Unsigned Touch Data"; break;
1328 case V4L2_TCH_FMT_TU08: descr = "8-bit Unsigned Touch Data"; break;
1329 case V4L2_META_FMT_VSP1_HGO: descr = "R-Car VSP1 1-D Histogram"; break;
1330 case V4L2_META_FMT_VSP1_HGT: descr = "R-Car VSP1 2-D Histogram"; break;
1331 case V4L2_META_FMT_UVC: descr = "UVC Payload Header Metadata"; break;
1332 case V4L2_META_FMT_D4XX: descr = "Intel D4xx UVC Metadata"; break;
1333
1334 default:
1335
1336 flags = V4L2_FMT_FLAG_COMPRESSED;
1337 switch (fmt->pixelformat) {
1338
1339 case V4L2_PIX_FMT_MJPEG: descr = "Motion-JPEG"; break;
1340 case V4L2_PIX_FMT_JPEG: descr = "JFIF JPEG"; break;
1341 case V4L2_PIX_FMT_DV: descr = "1394"; break;
1342 case V4L2_PIX_FMT_MPEG: descr = "MPEG-1/2/4"; break;
1343 case V4L2_PIX_FMT_H264: descr = "H.264"; break;
1344 case V4L2_PIX_FMT_H264_NO_SC: descr = "H.264 (No Start Codes)"; break;
1345 case V4L2_PIX_FMT_H264_MVC: descr = "H.264 MVC"; break;
1346 case V4L2_PIX_FMT_H264_SLICE: descr = "H.264 Parsed Slice Data"; break;
1347 case V4L2_PIX_FMT_H263: descr = "H.263"; break;
1348 case V4L2_PIX_FMT_MPEG1: descr = "MPEG-1 ES"; break;
1349 case V4L2_PIX_FMT_MPEG2: descr = "MPEG-2 ES"; break;
1350 case V4L2_PIX_FMT_MPEG2_SLICE: descr = "MPEG-2 Parsed Slice Data"; break;
1351 case V4L2_PIX_FMT_MPEG4: descr = "MPEG-4 Part 2 ES"; break;
1352 case V4L2_PIX_FMT_XVID: descr = "Xvid"; break;
1353 case V4L2_PIX_FMT_VC1_ANNEX_G: descr = "VC-1 (SMPTE 412M Annex G)"; break;
1354 case V4L2_PIX_FMT_VC1_ANNEX_L: descr = "VC-1 (SMPTE 412M Annex L)"; break;
1355 case V4L2_PIX_FMT_VP8: descr = "VP8"; break;
1356 case V4L2_PIX_FMT_VP8_FRAME: descr = "VP8 Frame"; break;
1357 case V4L2_PIX_FMT_VP9: descr = "VP9"; break;
1358 case V4L2_PIX_FMT_HEVC: descr = "HEVC"; break;
1359 case V4L2_PIX_FMT_FWHT: descr = "FWHT"; break;
1360 case V4L2_PIX_FMT_FWHT_STATELESS: descr = "FWHT Stateless"; break;
1361 case V4L2_PIX_FMT_CPIA1: descr = "GSPCA CPiA YUV"; break;
1362 case V4L2_PIX_FMT_WNVA: descr = "WNVA"; break;
1363 case V4L2_PIX_FMT_SN9C10X: descr = "GSPCA SN9C10X"; break;
1364 case V4L2_PIX_FMT_PWC1: descr = "Raw Philips Webcam Type (Old)"; break;
1365 case V4L2_PIX_FMT_PWC2: descr = "Raw Philips Webcam Type (New)"; break;
1366 case V4L2_PIX_FMT_ET61X251: descr = "GSPCA ET61X251"; break;
1367 case V4L2_PIX_FMT_SPCA561: descr = "GSPCA SPCA561"; break;
1368 case V4L2_PIX_FMT_PAC207: descr = "GSPCA PAC207"; break;
1369 case V4L2_PIX_FMT_MR97310A: descr = "GSPCA MR97310A"; break;
1370 case V4L2_PIX_FMT_JL2005BCD: descr = "GSPCA JL2005BCD"; break;
1371 case V4L2_PIX_FMT_SN9C2028: descr = "GSPCA SN9C2028"; break;
1372 case V4L2_PIX_FMT_SQ905C: descr = "GSPCA SQ905C"; break;
1373 case V4L2_PIX_FMT_PJPG: descr = "GSPCA PJPG"; break;
1374 case V4L2_PIX_FMT_OV511: descr = "GSPCA OV511"; break;
1375 case V4L2_PIX_FMT_OV518: descr = "GSPCA OV518"; break;
1376 case V4L2_PIX_FMT_JPGL: descr = "JPEG Lite"; break;
1377 case V4L2_PIX_FMT_SE401: descr = "GSPCA SE401"; break;
1378 case V4L2_PIX_FMT_S5C_UYVY_JPG: descr = "S5C73MX interleaved UYVY/JPEG"; break;
1379 case V4L2_PIX_FMT_MT21C: descr = "Mediatek Compressed Format"; break;
1380 case V4L2_PIX_FMT_SUNXI_TILED_NV12: descr = "Sunxi Tiled NV12 Format"; break;
1381 default:
1382 if (fmt->description[0])
1383 return;
1384 WARN(1, "Unknown pixelformat 0x%08x\n", fmt->pixelformat);
1385 flags = 0;
1386 snprintf(fmt->description, sz, "%c%c%c%c%s",
1387 (char)(fmt->pixelformat & 0x7f),
1388 (char)((fmt->pixelformat >> 8) & 0x7f),
1389 (char)((fmt->pixelformat >> 16) & 0x7f),
1390 (char)((fmt->pixelformat >> 24) & 0x7f),
1391 (fmt->pixelformat & (1UL << 31)) ? "-BE" : "");
1392 break;
1393 }
1394 }
1395
1396 if (descr)
1397 WARN_ON(strscpy(fmt->description, descr, sz) < 0);
1398 fmt->flags |= flags;
1399 }
1400
1401 static int v4l_enum_fmt(const struct v4l2_ioctl_ops *ops,
1402 struct file *file, void *fh, void *arg)
1403 {
1404 struct video_device *vdev = video_devdata(file);
1405 struct v4l2_fmtdesc *p = arg;
1406 int ret = check_fmt(file, p->type);
1407 u32 cap_mask;
1408
1409 if (ret)
1410 return ret;
1411 ret = -EINVAL;
1412
1413 switch (p->type) {
1414 case V4L2_BUF_TYPE_VIDEO_CAPTURE:
1415 case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE:
1416 cap_mask = V4L2_CAP_VIDEO_CAPTURE_MPLANE |
1417 V4L2_CAP_VIDEO_M2M_MPLANE;
1418 if (!!(vdev->device_caps & cap_mask) !=
1419 (p->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE))
1420 break;
1421
1422 if (unlikely(!ops->vidioc_enum_fmt_vid_cap))
1423 break;
1424 ret = ops->vidioc_enum_fmt_vid_cap(file, fh, arg);
1425 break;
1426 case V4L2_BUF_TYPE_VIDEO_OVERLAY:
1427 if (unlikely(!ops->vidioc_enum_fmt_vid_overlay))
1428 break;
1429 ret = ops->vidioc_enum_fmt_vid_overlay(file, fh, arg);
1430 break;
1431 case V4L2_BUF_TYPE_VIDEO_OUTPUT:
1432 case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE:
1433 cap_mask = V4L2_CAP_VIDEO_OUTPUT_MPLANE |
1434 V4L2_CAP_VIDEO_M2M_MPLANE;
1435 if (!!(vdev->device_caps & cap_mask) !=
1436 (p->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE))
1437 break;
1438
1439 if (unlikely(!ops->vidioc_enum_fmt_vid_out))
1440 break;
1441 ret = ops->vidioc_enum_fmt_vid_out(file, fh, arg);
1442 break;
1443 case V4L2_BUF_TYPE_SDR_CAPTURE:
1444 if (unlikely(!ops->vidioc_enum_fmt_sdr_cap))
1445 break;
1446 ret = ops->vidioc_enum_fmt_sdr_cap(file, fh, arg);
1447 break;
1448 case V4L2_BUF_TYPE_SDR_OUTPUT:
1449 if (unlikely(!ops->vidioc_enum_fmt_sdr_out))
1450 break;
1451 ret = ops->vidioc_enum_fmt_sdr_out(file, fh, arg);
1452 break;
1453 case V4L2_BUF_TYPE_META_CAPTURE:
1454 if (unlikely(!ops->vidioc_enum_fmt_meta_cap))
1455 break;
1456 ret = ops->vidioc_enum_fmt_meta_cap(file, fh, arg);
1457 break;
1458 case V4L2_BUF_TYPE_META_OUTPUT:
1459 if (unlikely(!ops->vidioc_enum_fmt_meta_out))
1460 break;
1461 ret = ops->vidioc_enum_fmt_meta_out(file, fh, arg);
1462 break;
1463 }
1464 if (ret == 0)
1465 v4l_fill_fmtdesc(p);
1466 return ret;
1467 }
1468
1469 static void v4l_pix_format_touch(struct v4l2_pix_format *p)
1470 {
1471
1472
1473
1474
1475
1476 p->field = V4L2_FIELD_NONE;
1477 p->colorspace = V4L2_COLORSPACE_RAW;
1478 p->flags = 0;
1479 p->ycbcr_enc = 0;
1480 p->quantization = 0;
1481 p->xfer_func = 0;
1482 }
1483
1484 static int v4l_g_fmt(const struct v4l2_ioctl_ops *ops,
1485 struct file *file, void *fh, void *arg)
1486 {
1487 struct v4l2_format *p = arg;
1488 struct video_device *vfd = video_devdata(file);
1489 int ret = check_fmt(file, p->type);
1490
1491 if (ret)
1492 return ret;
1493
1494
1495
1496
1497
1498
1499
1500 switch (p->type) {
1501 case V4L2_BUF_TYPE_VIDEO_OVERLAY:
1502 case V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY: {
1503 struct v4l2_clip __user *clips = p->fmt.win.clips;
1504 u32 clipcount = p->fmt.win.clipcount;
1505 void __user *bitmap = p->fmt.win.bitmap;
1506
1507 memset(&p->fmt, 0, sizeof(p->fmt));
1508 p->fmt.win.clips = clips;
1509 p->fmt.win.clipcount = clipcount;
1510 p->fmt.win.bitmap = bitmap;
1511 break;
1512 }
1513 default:
1514 memset(&p->fmt, 0, sizeof(p->fmt));
1515 break;
1516 }
1517
1518 switch (p->type) {
1519 case V4L2_BUF_TYPE_VIDEO_CAPTURE:
1520 if (unlikely(!ops->vidioc_g_fmt_vid_cap))
1521 break;
1522 p->fmt.pix.priv = V4L2_PIX_FMT_PRIV_MAGIC;
1523 ret = ops->vidioc_g_fmt_vid_cap(file, fh, arg);
1524
1525 p->fmt.pix.priv = V4L2_PIX_FMT_PRIV_MAGIC;
1526 if (vfd->vfl_type == VFL_TYPE_TOUCH)
1527 v4l_pix_format_touch(&p->fmt.pix);
1528 return ret;
1529 case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE:
1530 return ops->vidioc_g_fmt_vid_cap_mplane(file, fh, arg);
1531 case V4L2_BUF_TYPE_VIDEO_OVERLAY:
1532 return ops->vidioc_g_fmt_vid_overlay(file, fh, arg);
1533 case V4L2_BUF_TYPE_VBI_CAPTURE:
1534 return ops->vidioc_g_fmt_vbi_cap(file, fh, arg);
1535 case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE:
1536 return ops->vidioc_g_fmt_sliced_vbi_cap(file, fh, arg);
1537 case V4L2_BUF_TYPE_VIDEO_OUTPUT:
1538 if (unlikely(!ops->vidioc_g_fmt_vid_out))
1539 break;
1540 p->fmt.pix.priv = V4L2_PIX_FMT_PRIV_MAGIC;
1541 ret = ops->vidioc_g_fmt_vid_out(file, fh, arg);
1542
1543 p->fmt.pix.priv = V4L2_PIX_FMT_PRIV_MAGIC;
1544 return ret;
1545 case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE:
1546 return ops->vidioc_g_fmt_vid_out_mplane(file, fh, arg);
1547 case V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY:
1548 return ops->vidioc_g_fmt_vid_out_overlay(file, fh, arg);
1549 case V4L2_BUF_TYPE_VBI_OUTPUT:
1550 return ops->vidioc_g_fmt_vbi_out(file, fh, arg);
1551 case V4L2_BUF_TYPE_SLICED_VBI_OUTPUT:
1552 return ops->vidioc_g_fmt_sliced_vbi_out(file, fh, arg);
1553 case V4L2_BUF_TYPE_SDR_CAPTURE:
1554 return ops->vidioc_g_fmt_sdr_cap(file, fh, arg);
1555 case V4L2_BUF_TYPE_SDR_OUTPUT:
1556 return ops->vidioc_g_fmt_sdr_out(file, fh, arg);
1557 case V4L2_BUF_TYPE_META_CAPTURE:
1558 return ops->vidioc_g_fmt_meta_cap(file, fh, arg);
1559 case V4L2_BUF_TYPE_META_OUTPUT:
1560 return ops->vidioc_g_fmt_meta_out(file, fh, arg);
1561 }
1562 return -EINVAL;
1563 }
1564
1565 static int v4l_s_fmt(const struct v4l2_ioctl_ops *ops,
1566 struct file *file, void *fh, void *arg)
1567 {
1568 struct v4l2_format *p = arg;
1569 struct video_device *vfd = video_devdata(file);
1570 int ret = check_fmt(file, p->type);
1571 unsigned int i;
1572
1573 if (ret)
1574 return ret;
1575
1576 ret = v4l_enable_media_source(vfd);
1577 if (ret)
1578 return ret;
1579 v4l_sanitize_format(p);
1580
1581 switch (p->type) {
1582 case V4L2_BUF_TYPE_VIDEO_CAPTURE:
1583 if (unlikely(!ops->vidioc_s_fmt_vid_cap))
1584 break;
1585 CLEAR_AFTER_FIELD(p, fmt.pix);
1586 ret = ops->vidioc_s_fmt_vid_cap(file, fh, arg);
1587
1588 p->fmt.pix.priv = V4L2_PIX_FMT_PRIV_MAGIC;
1589 if (vfd->vfl_type == VFL_TYPE_TOUCH)
1590 v4l_pix_format_touch(&p->fmt.pix);
1591 return ret;
1592 case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE:
1593 if (unlikely(!ops->vidioc_s_fmt_vid_cap_mplane))
1594 break;
1595 CLEAR_AFTER_FIELD(p, fmt.pix_mp.xfer_func);
1596 for (i = 0; i < p->fmt.pix_mp.num_planes; i++)
1597 CLEAR_AFTER_FIELD(&p->fmt.pix_mp.plane_fmt[i],
1598 bytesperline);
1599 return ops->vidioc_s_fmt_vid_cap_mplane(file, fh, arg);
1600 case V4L2_BUF_TYPE_VIDEO_OVERLAY:
1601 if (unlikely(!ops->vidioc_s_fmt_vid_overlay))
1602 break;
1603 CLEAR_AFTER_FIELD(p, fmt.win);
1604 return ops->vidioc_s_fmt_vid_overlay(file, fh, arg);
1605 case V4L2_BUF_TYPE_VBI_CAPTURE:
1606 if (unlikely(!ops->vidioc_s_fmt_vbi_cap))
1607 break;
1608 CLEAR_AFTER_FIELD(p, fmt.vbi.flags);
1609 return ops->vidioc_s_fmt_vbi_cap(file, fh, arg);
1610 case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE:
1611 if (unlikely(!ops->vidioc_s_fmt_sliced_vbi_cap))
1612 break;
1613 CLEAR_AFTER_FIELD(p, fmt.sliced.io_size);
1614 return ops->vidioc_s_fmt_sliced_vbi_cap(file, fh, arg);
1615 case V4L2_BUF_TYPE_VIDEO_OUTPUT:
1616 if (unlikely(!ops->vidioc_s_fmt_vid_out))
1617 break;
1618 CLEAR_AFTER_FIELD(p, fmt.pix);
1619 ret = ops->vidioc_s_fmt_vid_out(file, fh, arg);
1620
1621 p->fmt.pix.priv = V4L2_PIX_FMT_PRIV_MAGIC;
1622 return ret;
1623 case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE:
1624 if (unlikely(!ops->vidioc_s_fmt_vid_out_mplane))
1625 break;
1626 CLEAR_AFTER_FIELD(p, fmt.pix_mp.xfer_func);
1627 for (i = 0; i < p->fmt.pix_mp.num_planes; i++)
1628 CLEAR_AFTER_FIELD(&p->fmt.pix_mp.plane_fmt[i],
1629 bytesperline);
1630 return ops->vidioc_s_fmt_vid_out_mplane(file, fh, arg);
1631 case V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY:
1632 if (unlikely(!ops->vidioc_s_fmt_vid_out_overlay))
1633 break;
1634 CLEAR_AFTER_FIELD(p, fmt.win);
1635 return ops->vidioc_s_fmt_vid_out_overlay(file, fh, arg);
1636 case V4L2_BUF_TYPE_VBI_OUTPUT:
1637 if (unlikely(!ops->vidioc_s_fmt_vbi_out))
1638 break;
1639 CLEAR_AFTER_FIELD(p, fmt.vbi.flags);
1640 return ops->vidioc_s_fmt_vbi_out(file, fh, arg);
1641 case V4L2_BUF_TYPE_SLICED_VBI_OUTPUT:
1642 if (unlikely(!ops->vidioc_s_fmt_sliced_vbi_out))
1643 break;
1644 CLEAR_AFTER_FIELD(p, fmt.sliced.io_size);
1645 return ops->vidioc_s_fmt_sliced_vbi_out(file, fh, arg);
1646 case V4L2_BUF_TYPE_SDR_CAPTURE:
1647 if (unlikely(!ops->vidioc_s_fmt_sdr_cap))
1648 break;
1649 CLEAR_AFTER_FIELD(p, fmt.sdr.buffersize);
1650 return ops->vidioc_s_fmt_sdr_cap(file, fh, arg);
1651 case V4L2_BUF_TYPE_SDR_OUTPUT:
1652 if (unlikely(!ops->vidioc_s_fmt_sdr_out))
1653 break;
1654 CLEAR_AFTER_FIELD(p, fmt.sdr.buffersize);
1655 return ops->vidioc_s_fmt_sdr_out(file, fh, arg);
1656 case V4L2_BUF_TYPE_META_CAPTURE:
1657 if (unlikely(!ops->vidioc_s_fmt_meta_cap))
1658 break;
1659 CLEAR_AFTER_FIELD(p, fmt.meta);
1660 return ops->vidioc_s_fmt_meta_cap(file, fh, arg);
1661 case V4L2_BUF_TYPE_META_OUTPUT:
1662 if (unlikely(!ops->vidioc_s_fmt_meta_out))
1663 break;
1664 CLEAR_AFTER_FIELD(p, fmt.meta);
1665 return ops->vidioc_s_fmt_meta_out(file, fh, arg);
1666 }
1667 return -EINVAL;
1668 }
1669
1670 static int v4l_try_fmt(const struct v4l2_ioctl_ops *ops,
1671 struct file *file, void *fh, void *arg)
1672 {
1673 struct v4l2_format *p = arg;
1674 struct video_device *vfd = video_devdata(file);
1675 int ret = check_fmt(file, p->type);
1676 unsigned int i;
1677
1678 if (ret)
1679 return ret;
1680
1681 v4l_sanitize_format(p);
1682
1683 switch (p->type) {
1684 case V4L2_BUF_TYPE_VIDEO_CAPTURE:
1685 if (unlikely(!ops->vidioc_try_fmt_vid_cap))
1686 break;
1687 CLEAR_AFTER_FIELD(p, fmt.pix);
1688 ret = ops->vidioc_try_fmt_vid_cap(file, fh, arg);
1689
1690 p->fmt.pix.priv = V4L2_PIX_FMT_PRIV_MAGIC;
1691 if (vfd->vfl_type == VFL_TYPE_TOUCH)
1692 v4l_pix_format_touch(&p->fmt.pix);
1693 return ret;
1694 case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE:
1695 if (unlikely(!ops->vidioc_try_fmt_vid_cap_mplane))
1696 break;
1697 CLEAR_AFTER_FIELD(p, fmt.pix_mp.xfer_func);
1698 for (i = 0; i < p->fmt.pix_mp.num_planes; i++)
1699 CLEAR_AFTER_FIELD(&p->fmt.pix_mp.plane_fmt[i],
1700 bytesperline);
1701 return ops->vidioc_try_fmt_vid_cap_mplane(file, fh, arg);
1702 case V4L2_BUF_TYPE_VIDEO_OVERLAY:
1703 if (unlikely(!ops->vidioc_try_fmt_vid_overlay))
1704 break;
1705 CLEAR_AFTER_FIELD(p, fmt.win);
1706 return ops->vidioc_try_fmt_vid_overlay(file, fh, arg);
1707 case V4L2_BUF_TYPE_VBI_CAPTURE:
1708 if (unlikely(!ops->vidioc_try_fmt_vbi_cap))
1709 break;
1710 CLEAR_AFTER_FIELD(p, fmt.vbi.flags);
1711 return ops->vidioc_try_fmt_vbi_cap(file, fh, arg);
1712 case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE:
1713 if (unlikely(!ops->vidioc_try_fmt_sliced_vbi_cap))
1714 break;
1715 CLEAR_AFTER_FIELD(p, fmt.sliced.io_size);
1716 return ops->vidioc_try_fmt_sliced_vbi_cap(file, fh, arg);
1717 case V4L2_BUF_TYPE_VIDEO_OUTPUT:
1718 if (unlikely(!ops->vidioc_try_fmt_vid_out))
1719 break;
1720 CLEAR_AFTER_FIELD(p, fmt.pix);
1721 ret = ops->vidioc_try_fmt_vid_out(file, fh, arg);
1722
1723 p->fmt.pix.priv = V4L2_PIX_FMT_PRIV_MAGIC;
1724 return ret;
1725 case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE:
1726 if (unlikely(!ops->vidioc_try_fmt_vid_out_mplane))
1727 break;
1728 CLEAR_AFTER_FIELD(p, fmt.pix_mp.xfer_func);
1729 for (i = 0; i < p->fmt.pix_mp.num_planes; i++)
1730 CLEAR_AFTER_FIELD(&p->fmt.pix_mp.plane_fmt[i],
1731 bytesperline);
1732 return ops->vidioc_try_fmt_vid_out_mplane(file, fh, arg);
1733 case V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY:
1734 if (unlikely(!ops->vidioc_try_fmt_vid_out_overlay))
1735 break;
1736 CLEAR_AFTER_FIELD(p, fmt.win);
1737 return ops->vidioc_try_fmt_vid_out_overlay(file, fh, arg);
1738 case V4L2_BUF_TYPE_VBI_OUTPUT:
1739 if (unlikely(!ops->vidioc_try_fmt_vbi_out))
1740 break;
1741 CLEAR_AFTER_FIELD(p, fmt.vbi.flags);
1742 return ops->vidioc_try_fmt_vbi_out(file, fh, arg);
1743 case V4L2_BUF_TYPE_SLICED_VBI_OUTPUT:
1744 if (unlikely(!ops->vidioc_try_fmt_sliced_vbi_out))
1745 break;
1746 CLEAR_AFTER_FIELD(p, fmt.sliced.io_size);
1747 return ops->vidioc_try_fmt_sliced_vbi_out(file, fh, arg);
1748 case V4L2_BUF_TYPE_SDR_CAPTURE:
1749 if (unlikely(!ops->vidioc_try_fmt_sdr_cap))
1750 break;
1751 CLEAR_AFTER_FIELD(p, fmt.sdr.buffersize);
1752 return ops->vidioc_try_fmt_sdr_cap(file, fh, arg);
1753 case V4L2_BUF_TYPE_SDR_OUTPUT:
1754 if (unlikely(!ops->vidioc_try_fmt_sdr_out))
1755 break;
1756 CLEAR_AFTER_FIELD(p, fmt.sdr.buffersize);
1757 return ops->vidioc_try_fmt_sdr_out(file, fh, arg);
1758 case V4L2_BUF_TYPE_META_CAPTURE:
1759 if (unlikely(!ops->vidioc_try_fmt_meta_cap))
1760 break;
1761 CLEAR_AFTER_FIELD(p, fmt.meta);
1762 return ops->vidioc_try_fmt_meta_cap(file, fh, arg);
1763 case V4L2_BUF_TYPE_META_OUTPUT:
1764 if (unlikely(!ops->vidioc_try_fmt_meta_out))
1765 break;
1766 CLEAR_AFTER_FIELD(p, fmt.meta);
1767 return ops->vidioc_try_fmt_meta_out(file, fh, arg);
1768 }
1769 return -EINVAL;
1770 }
1771
1772 static int v4l_streamon(const struct v4l2_ioctl_ops *ops,
1773 struct file *file, void *fh, void *arg)
1774 {
1775 return ops->vidioc_streamon(file, fh, *(unsigned int *)arg);
1776 }
1777
1778 static int v4l_streamoff(const struct v4l2_ioctl_ops *ops,
1779 struct file *file, void *fh, void *arg)
1780 {
1781 return ops->vidioc_streamoff(file, fh, *(unsigned int *)arg);
1782 }
1783
1784 static int v4l_g_tuner(const struct v4l2_ioctl_ops *ops,
1785 struct file *file, void *fh, void *arg)
1786 {
1787 struct video_device *vfd = video_devdata(file);
1788 struct v4l2_tuner *p = arg;
1789 int err;
1790
1791 p->type = (vfd->vfl_type == VFL_TYPE_RADIO) ?
1792 V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV;
1793 err = ops->vidioc_g_tuner(file, fh, p);
1794 if (!err)
1795 p->capability |= V4L2_TUNER_CAP_FREQ_BANDS;
1796 return err;
1797 }
1798
1799 static int v4l_s_tuner(const struct v4l2_ioctl_ops *ops,
1800 struct file *file, void *fh, void *arg)
1801 {
1802 struct video_device *vfd = video_devdata(file);
1803 struct v4l2_tuner *p = arg;
1804 int ret;
1805
1806 ret = v4l_enable_media_source(vfd);
1807 if (ret)
1808 return ret;
1809 p->type = (vfd->vfl_type == VFL_TYPE_RADIO) ?
1810 V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV;
1811 return ops->vidioc_s_tuner(file, fh, p);
1812 }
1813
1814 static int v4l_g_modulator(const struct v4l2_ioctl_ops *ops,
1815 struct file *file, void *fh, void *arg)
1816 {
1817 struct video_device *vfd = video_devdata(file);
1818 struct v4l2_modulator *p = arg;
1819 int err;
1820
1821 if (vfd->vfl_type == VFL_TYPE_RADIO)
1822 p->type = V4L2_TUNER_RADIO;
1823
1824 err = ops->vidioc_g_modulator(file, fh, p);
1825 if (!err)
1826 p->capability |= V4L2_TUNER_CAP_FREQ_BANDS;
1827 return err;
1828 }
1829
1830 static int v4l_s_modulator(const struct v4l2_ioctl_ops *ops,
1831 struct file *file, void *fh, void *arg)
1832 {
1833 struct video_device *vfd = video_devdata(file);
1834 struct v4l2_modulator *p = arg;
1835
1836 if (vfd->vfl_type == VFL_TYPE_RADIO)
1837 p->type = V4L2_TUNER_RADIO;
1838
1839 return ops->vidioc_s_modulator(file, fh, p);
1840 }
1841
1842 static int v4l_g_frequency(const struct v4l2_ioctl_ops *ops,
1843 struct file *file, void *fh, void *arg)
1844 {
1845 struct video_device *vfd = video_devdata(file);
1846 struct v4l2_frequency *p = arg;
1847
1848 if (vfd->vfl_type == VFL_TYPE_SDR)
1849 p->type = V4L2_TUNER_SDR;
1850 else
1851 p->type = (vfd->vfl_type == VFL_TYPE_RADIO) ?
1852 V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV;
1853 return ops->vidioc_g_frequency(file, fh, p);
1854 }
1855
1856 static int v4l_s_frequency(const struct v4l2_ioctl_ops *ops,
1857 struct file *file, void *fh, void *arg)
1858 {
1859 struct video_device *vfd = video_devdata(file);
1860 const struct v4l2_frequency *p = arg;
1861 enum v4l2_tuner_type type;
1862 int ret;
1863
1864 ret = v4l_enable_media_source(vfd);
1865 if (ret)
1866 return ret;
1867 if (vfd->vfl_type == VFL_TYPE_SDR) {
1868 if (p->type != V4L2_TUNER_SDR && p->type != V4L2_TUNER_RF)
1869 return -EINVAL;
1870 } else {
1871 type = (vfd->vfl_type == VFL_TYPE_RADIO) ?
1872 V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV;
1873 if (type != p->type)
1874 return -EINVAL;
1875 }
1876 return ops->vidioc_s_frequency(file, fh, p);
1877 }
1878
1879 static int v4l_enumstd(const struct v4l2_ioctl_ops *ops,
1880 struct file *file, void *fh, void *arg)
1881 {
1882 struct video_device *vfd = video_devdata(file);
1883 struct v4l2_standard *p = arg;
1884
1885 return v4l_video_std_enumstd(p, vfd->tvnorms);
1886 }
1887
1888 static int v4l_s_std(const struct v4l2_ioctl_ops *ops,
1889 struct file *file, void *fh, void *arg)
1890 {
1891 struct video_device *vfd = video_devdata(file);
1892 v4l2_std_id id = *(v4l2_std_id *)arg, norm;
1893 int ret;
1894
1895 ret = v4l_enable_media_source(vfd);
1896 if (ret)
1897 return ret;
1898 norm = id & vfd->tvnorms;
1899 if (vfd->tvnorms && !norm)
1900 return -EINVAL;
1901
1902
1903 return ops->vidioc_s_std(file, fh, norm);
1904 }
1905
1906 static int v4l_querystd(const struct v4l2_ioctl_ops *ops,
1907 struct file *file, void *fh, void *arg)
1908 {
1909 struct video_device *vfd = video_devdata(file);
1910 v4l2_std_id *p = arg;
1911 int ret;
1912
1913 ret = v4l_enable_media_source(vfd);
1914 if (ret)
1915 return ret;
1916
1917
1918
1919
1920
1921
1922
1923
1924 *p = vfd->tvnorms;
1925 return ops->vidioc_querystd(file, fh, arg);
1926 }
1927
1928 static int v4l_s_hw_freq_seek(const struct v4l2_ioctl_ops *ops,
1929 struct file *file, void *fh, void *arg)
1930 {
1931 struct video_device *vfd = video_devdata(file);
1932 struct v4l2_hw_freq_seek *p = arg;
1933 enum v4l2_tuner_type type;
1934 int ret;
1935
1936 ret = v4l_enable_media_source(vfd);
1937 if (ret)
1938 return ret;
1939
1940 if (vfd->vfl_type == VFL_TYPE_SDR)
1941 return -EINVAL;
1942
1943 type = (vfd->vfl_type == VFL_TYPE_RADIO) ?
1944 V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV;
1945 if (p->type != type)
1946 return -EINVAL;
1947 return ops->vidioc_s_hw_freq_seek(file, fh, p);
1948 }
1949
1950 static int v4l_overlay(const struct v4l2_ioctl_ops *ops,
1951 struct file *file, void *fh, void *arg)
1952 {
1953 return ops->vidioc_overlay(file, fh, *(unsigned int *)arg);
1954 }
1955
1956 static int v4l_reqbufs(const struct v4l2_ioctl_ops *ops,
1957 struct file *file, void *fh, void *arg)
1958 {
1959 struct v4l2_requestbuffers *p = arg;
1960 int ret = check_fmt(file, p->type);
1961
1962 if (ret)
1963 return ret;
1964
1965 CLEAR_AFTER_FIELD(p, capabilities);
1966
1967 return ops->vidioc_reqbufs(file, fh, p);
1968 }
1969
1970 static int v4l_querybuf(const struct v4l2_ioctl_ops *ops,
1971 struct file *file, void *fh, void *arg)
1972 {
1973 struct v4l2_buffer *p = arg;
1974 int ret = check_fmt(file, p->type);
1975
1976 return ret ? ret : ops->vidioc_querybuf(file, fh, p);
1977 }
1978
1979 static int v4l_qbuf(const struct v4l2_ioctl_ops *ops,
1980 struct file *file, void *fh, void *arg)
1981 {
1982 struct v4l2_buffer *p = arg;
1983 int ret = check_fmt(file, p->type);
1984
1985 return ret ? ret : ops->vidioc_qbuf(file, fh, p);
1986 }
1987
1988 static int v4l_dqbuf(const struct v4l2_ioctl_ops *ops,
1989 struct file *file, void *fh, void *arg)
1990 {
1991 struct v4l2_buffer *p = arg;
1992 int ret = check_fmt(file, p->type);
1993
1994 return ret ? ret : ops->vidioc_dqbuf(file, fh, p);
1995 }
1996
1997 static int v4l_create_bufs(const struct v4l2_ioctl_ops *ops,
1998 struct file *file, void *fh, void *arg)
1999 {
2000 struct v4l2_create_buffers *create = arg;
2001 int ret = check_fmt(file, create->format.type);
2002
2003 if (ret)
2004 return ret;
2005
2006 CLEAR_AFTER_FIELD(create, capabilities);
2007
2008 v4l_sanitize_format(&create->format);
2009
2010 ret = ops->vidioc_create_bufs(file, fh, create);
2011
2012 if (create->format.type == V4L2_BUF_TYPE_VIDEO_CAPTURE ||
2013 create->format.type == V4L2_BUF_TYPE_VIDEO_OUTPUT)
2014 create->format.fmt.pix.priv = V4L2_PIX_FMT_PRIV_MAGIC;
2015
2016 return ret;
2017 }
2018
2019 static int v4l_prepare_buf(const struct v4l2_ioctl_ops *ops,
2020 struct file *file, void *fh, void *arg)
2021 {
2022 struct v4l2_buffer *b = arg;
2023 int ret = check_fmt(file, b->type);
2024
2025 return ret ? ret : ops->vidioc_prepare_buf(file, fh, b);
2026 }
2027
2028 static int v4l_g_parm(const struct v4l2_ioctl_ops *ops,
2029 struct file *file, void *fh, void *arg)
2030 {
2031 struct v4l2_streamparm *p = arg;
2032 v4l2_std_id std;
2033 int ret = check_fmt(file, p->type);
2034
2035 if (ret)
2036 return ret;
2037 if (ops->vidioc_g_parm)
2038 return ops->vidioc_g_parm(file, fh, p);
2039 if (p->type != V4L2_BUF_TYPE_VIDEO_CAPTURE &&
2040 p->type != V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE)
2041 return -EINVAL;
2042 p->parm.capture.readbuffers = 2;
2043 ret = ops->vidioc_g_std(file, fh, &std);
2044 if (ret == 0)
2045 v4l2_video_std_frame_period(std, &p->parm.capture.timeperframe);
2046 return ret;
2047 }
2048
2049 static int v4l_s_parm(const struct v4l2_ioctl_ops *ops,
2050 struct file *file, void *fh, void *arg)
2051 {
2052 struct v4l2_streamparm *p = arg;
2053 int ret = check_fmt(file, p->type);
2054
2055 if (ret)
2056 return ret;
2057
2058
2059 if (V4L2_TYPE_IS_OUTPUT(p->type)) {
2060 memset(p->parm.output.reserved, 0,
2061 sizeof(p->parm.output.reserved));
2062 p->parm.output.extendedmode = 0;
2063 p->parm.output.outputmode &= V4L2_MODE_HIGHQUALITY;
2064 } else {
2065 memset(p->parm.capture.reserved, 0,
2066 sizeof(p->parm.capture.reserved));
2067 p->parm.capture.extendedmode = 0;
2068 p->parm.capture.capturemode &= V4L2_MODE_HIGHQUALITY;
2069 }
2070 return ops->vidioc_s_parm(file, fh, p);
2071 }
2072
2073 static int v4l_queryctrl(const struct v4l2_ioctl_ops *ops,
2074 struct file *file, void *fh, void *arg)
2075 {
2076 struct video_device *vfd = video_devdata(file);
2077 struct v4l2_queryctrl *p = arg;
2078 struct v4l2_fh *vfh =
2079 test_bit(V4L2_FL_USES_V4L2_FH, &vfd->flags) ? fh : NULL;
2080
2081 if (vfh && vfh->ctrl_handler)
2082 return v4l2_queryctrl(vfh->ctrl_handler, p);
2083 if (vfd->ctrl_handler)
2084 return v4l2_queryctrl(vfd->ctrl_handler, p);
2085 if (ops->vidioc_queryctrl)
2086 return ops->vidioc_queryctrl(file, fh, p);
2087 return -ENOTTY;
2088 }
2089
2090 static int v4l_query_ext_ctrl(const struct v4l2_ioctl_ops *ops,
2091 struct file *file, void *fh, void *arg)
2092 {
2093 struct video_device *vfd = video_devdata(file);
2094 struct v4l2_query_ext_ctrl *p = arg;
2095 struct v4l2_fh *vfh =
2096 test_bit(V4L2_FL_USES_V4L2_FH, &vfd->flags) ? fh : NULL;
2097
2098 if (vfh && vfh->ctrl_handler)
2099 return v4l2_query_ext_ctrl(vfh->ctrl_handler, p);
2100 if (vfd->ctrl_handler)
2101 return v4l2_query_ext_ctrl(vfd->ctrl_handler, p);
2102 if (ops->vidioc_query_ext_ctrl)
2103 return ops->vidioc_query_ext_ctrl(file, fh, p);
2104 return -ENOTTY;
2105 }
2106
2107 static int v4l_querymenu(const struct v4l2_ioctl_ops *ops,
2108 struct file *file, void *fh, void *arg)
2109 {
2110 struct video_device *vfd = video_devdata(file);
2111 struct v4l2_querymenu *p = arg;
2112 struct v4l2_fh *vfh =
2113 test_bit(V4L2_FL_USES_V4L2_FH, &vfd->flags) ? fh : NULL;
2114
2115 if (vfh && vfh->ctrl_handler)
2116 return v4l2_querymenu(vfh->ctrl_handler, p);
2117 if (vfd->ctrl_handler)
2118 return v4l2_querymenu(vfd->ctrl_handler, p);
2119 if (ops->vidioc_querymenu)
2120 return ops->vidioc_querymenu(file, fh, p);
2121 return -ENOTTY;
2122 }
2123
2124 static int v4l_g_ctrl(const struct v4l2_ioctl_ops *ops,
2125 struct file *file, void *fh, void *arg)
2126 {
2127 struct video_device *vfd = video_devdata(file);
2128 struct v4l2_control *p = arg;
2129 struct v4l2_fh *vfh =
2130 test_bit(V4L2_FL_USES_V4L2_FH, &vfd->flags) ? fh : NULL;
2131 struct v4l2_ext_controls ctrls;
2132 struct v4l2_ext_control ctrl;
2133
2134 if (vfh && vfh->ctrl_handler)
2135 return v4l2_g_ctrl(vfh->ctrl_handler, p);
2136 if (vfd->ctrl_handler)
2137 return v4l2_g_ctrl(vfd->ctrl_handler, p);
2138 if (ops->vidioc_g_ctrl)
2139 return ops->vidioc_g_ctrl(file, fh, p);
2140 if (ops->vidioc_g_ext_ctrls == NULL)
2141 return -ENOTTY;
2142
2143 ctrls.which = V4L2_CTRL_ID2WHICH(p->id);
2144 ctrls.count = 1;
2145 ctrls.controls = &ctrl;
2146 ctrl.id = p->id;
2147 ctrl.value = p->value;
2148 if (check_ext_ctrls(&ctrls, 1)) {
2149 int ret = ops->vidioc_g_ext_ctrls(file, fh, &ctrls);
2150
2151 if (ret == 0)
2152 p->value = ctrl.value;
2153 return ret;
2154 }
2155 return -EINVAL;
2156 }
2157
2158 static int v4l_s_ctrl(const struct v4l2_ioctl_ops *ops,
2159 struct file *file, void *fh, void *arg)
2160 {
2161 struct video_device *vfd = video_devdata(file);
2162 struct v4l2_control *p = arg;
2163 struct v4l2_fh *vfh =
2164 test_bit(V4L2_FL_USES_V4L2_FH, &vfd->flags) ? fh : NULL;
2165 struct v4l2_ext_controls ctrls;
2166 struct v4l2_ext_control ctrl;
2167
2168 if (vfh && vfh->ctrl_handler)
2169 return v4l2_s_ctrl(vfh, vfh->ctrl_handler, p);
2170 if (vfd->ctrl_handler)
2171 return v4l2_s_ctrl(NULL, vfd->ctrl_handler, p);
2172 if (ops->vidioc_s_ctrl)
2173 return ops->vidioc_s_ctrl(file, fh, p);
2174 if (ops->vidioc_s_ext_ctrls == NULL)
2175 return -ENOTTY;
2176
2177 ctrls.which = V4L2_CTRL_ID2WHICH(p->id);
2178 ctrls.count = 1;
2179 ctrls.controls = &ctrl;
2180 ctrl.id = p->id;
2181 ctrl.value = p->value;
2182 if (check_ext_ctrls(&ctrls, 1))
2183 return ops->vidioc_s_ext_ctrls(file, fh, &ctrls);
2184 return -EINVAL;
2185 }
2186
2187 static int v4l_g_ext_ctrls(const struct v4l2_ioctl_ops *ops,
2188 struct file *file, void *fh, void *arg)
2189 {
2190 struct video_device *vfd = video_devdata(file);
2191 struct v4l2_ext_controls *p = arg;
2192 struct v4l2_fh *vfh =
2193 test_bit(V4L2_FL_USES_V4L2_FH, &vfd->flags) ? fh : NULL;
2194
2195 p->error_idx = p->count;
2196 if (vfh && vfh->ctrl_handler)
2197 return v4l2_g_ext_ctrls(vfh->ctrl_handler,
2198 vfd, vfd->v4l2_dev->mdev, p);
2199 if (vfd->ctrl_handler)
2200 return v4l2_g_ext_ctrls(vfd->ctrl_handler,
2201 vfd, vfd->v4l2_dev->mdev, p);
2202 if (ops->vidioc_g_ext_ctrls == NULL)
2203 return -ENOTTY;
2204 return check_ext_ctrls(p, 0) ? ops->vidioc_g_ext_ctrls(file, fh, p) :
2205 -EINVAL;
2206 }
2207
2208 static int v4l_s_ext_ctrls(const struct v4l2_ioctl_ops *ops,
2209 struct file *file, void *fh, void *arg)
2210 {
2211 struct video_device *vfd = video_devdata(file);
2212 struct v4l2_ext_controls *p = arg;
2213 struct v4l2_fh *vfh =
2214 test_bit(V4L2_FL_USES_V4L2_FH, &vfd->flags) ? fh : NULL;
2215
2216 p->error_idx = p->count;
2217 if (vfh && vfh->ctrl_handler)
2218 return v4l2_s_ext_ctrls(vfh, vfh->ctrl_handler,
2219 vfd, vfd->v4l2_dev->mdev, p);
2220 if (vfd->ctrl_handler)
2221 return v4l2_s_ext_ctrls(NULL, vfd->ctrl_handler,
2222 vfd, vfd->v4l2_dev->mdev, p);
2223 if (ops->vidioc_s_ext_ctrls == NULL)
2224 return -ENOTTY;
2225 return check_ext_ctrls(p, 0) ? ops->vidioc_s_ext_ctrls(file, fh, p) :
2226 -EINVAL;
2227 }
2228
2229 static int v4l_try_ext_ctrls(const struct v4l2_ioctl_ops *ops,
2230 struct file *file, void *fh, void *arg)
2231 {
2232 struct video_device *vfd = video_devdata(file);
2233 struct v4l2_ext_controls *p = arg;
2234 struct v4l2_fh *vfh =
2235 test_bit(V4L2_FL_USES_V4L2_FH, &vfd->flags) ? fh : NULL;
2236
2237 p->error_idx = p->count;
2238 if (vfh && vfh->ctrl_handler)
2239 return v4l2_try_ext_ctrls(vfh->ctrl_handler,
2240 vfd, vfd->v4l2_dev->mdev, p);
2241 if (vfd->ctrl_handler)
2242 return v4l2_try_ext_ctrls(vfd->ctrl_handler,
2243 vfd, vfd->v4l2_dev->mdev, p);
2244 if (ops->vidioc_try_ext_ctrls == NULL)
2245 return -ENOTTY;
2246 return check_ext_ctrls(p, 0) ? ops->vidioc_try_ext_ctrls(file, fh, p) :
2247 -EINVAL;
2248 }
2249
2250
2251
2252
2253
2254
2255
2256
2257
2258
2259 static int v4l_g_selection(const struct v4l2_ioctl_ops *ops,
2260 struct file *file, void *fh, void *arg)
2261 {
2262 struct v4l2_selection *p = arg;
2263 u32 old_type = p->type;
2264 int ret;
2265
2266 if (p->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE)
2267 p->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
2268 else if (p->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE)
2269 p->type = V4L2_BUF_TYPE_VIDEO_OUTPUT;
2270 ret = ops->vidioc_g_selection(file, fh, p);
2271 p->type = old_type;
2272 return ret;
2273 }
2274
2275 static int v4l_s_selection(const struct v4l2_ioctl_ops *ops,
2276 struct file *file, void *fh, void *arg)
2277 {
2278 struct v4l2_selection *p = arg;
2279 u32 old_type = p->type;
2280 int ret;
2281
2282 if (p->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE)
2283 p->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
2284 else if (p->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE)
2285 p->type = V4L2_BUF_TYPE_VIDEO_OUTPUT;
2286 ret = ops->vidioc_s_selection(file, fh, p);
2287 p->type = old_type;
2288 return ret;
2289 }
2290
2291 static int v4l_g_crop(const struct v4l2_ioctl_ops *ops,
2292 struct file *file, void *fh, void *arg)
2293 {
2294 struct video_device *vfd = video_devdata(file);
2295 struct v4l2_crop *p = arg;
2296 struct v4l2_selection s = {
2297 .type = p->type,
2298 };
2299 int ret;
2300
2301
2302
2303
2304 if (V4L2_TYPE_IS_OUTPUT(p->type))
2305 s.target = V4L2_SEL_TGT_COMPOSE;
2306 else
2307 s.target = V4L2_SEL_TGT_CROP;
2308
2309 if (test_bit(V4L2_FL_QUIRK_INVERTED_CROP, &vfd->flags))
2310 s.target = s.target == V4L2_SEL_TGT_COMPOSE ?
2311 V4L2_SEL_TGT_CROP : V4L2_SEL_TGT_COMPOSE;
2312
2313 ret = v4l_g_selection(ops, file, fh, &s);
2314
2315
2316 if (!ret)
2317 p->c = s.r;
2318 return ret;
2319 }
2320
2321 static int v4l_s_crop(const struct v4l2_ioctl_ops *ops,
2322 struct file *file, void *fh, void *arg)
2323 {
2324 struct video_device *vfd = video_devdata(file);
2325 struct v4l2_crop *p = arg;
2326 struct v4l2_selection s = {
2327 .type = p->type,
2328 .r = p->c,
2329 };
2330
2331
2332
2333
2334 if (V4L2_TYPE_IS_OUTPUT(p->type))
2335 s.target = V4L2_SEL_TGT_COMPOSE;
2336 else
2337 s.target = V4L2_SEL_TGT_CROP;
2338
2339 if (test_bit(V4L2_FL_QUIRK_INVERTED_CROP, &vfd->flags))
2340 s.target = s.target == V4L2_SEL_TGT_COMPOSE ?
2341 V4L2_SEL_TGT_CROP : V4L2_SEL_TGT_COMPOSE;
2342
2343 return v4l_s_selection(ops, file, fh, &s);
2344 }
2345
2346 static int v4l_cropcap(const struct v4l2_ioctl_ops *ops,
2347 struct file *file, void *fh, void *arg)
2348 {
2349 struct video_device *vfd = video_devdata(file);
2350 struct v4l2_cropcap *p = arg;
2351 struct v4l2_selection s = { .type = p->type };
2352 int ret = 0;
2353
2354
2355 p->pixelaspect.numerator = 1;
2356 p->pixelaspect.denominator = 1;
2357
2358 if (s.type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE)
2359 s.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
2360 else if (s.type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE)
2361 s.type = V4L2_BUF_TYPE_VIDEO_OUTPUT;
2362
2363
2364
2365
2366
2367 if (WARN_ON(!ops->vidioc_g_selection))
2368 return -ENOTTY;
2369
2370 if (ops->vidioc_g_pixelaspect)
2371 ret = ops->vidioc_g_pixelaspect(file, fh, s.type,
2372 &p->pixelaspect);
2373
2374
2375
2376
2377
2378 if (ret && ret != -ENOTTY && ret != -ENOIOCTLCMD)
2379 return ret;
2380
2381
2382
2383
2384 if (V4L2_TYPE_IS_OUTPUT(p->type))
2385 s.target = V4L2_SEL_TGT_COMPOSE_BOUNDS;
2386 else
2387 s.target = V4L2_SEL_TGT_CROP_BOUNDS;
2388
2389 if (test_bit(V4L2_FL_QUIRK_INVERTED_CROP, &vfd->flags))
2390 s.target = s.target == V4L2_SEL_TGT_COMPOSE_BOUNDS ?
2391 V4L2_SEL_TGT_CROP_BOUNDS : V4L2_SEL_TGT_COMPOSE_BOUNDS;
2392
2393 ret = v4l_g_selection(ops, file, fh, &s);
2394 if (ret)
2395 return ret;
2396 p->bounds = s.r;
2397
2398
2399 if (s.target == V4L2_SEL_TGT_COMPOSE_BOUNDS)
2400 s.target = V4L2_SEL_TGT_COMPOSE_DEFAULT;
2401 else
2402 s.target = V4L2_SEL_TGT_CROP_DEFAULT;
2403
2404 ret = v4l_g_selection(ops, file, fh, &s);
2405 if (ret)
2406 return ret;
2407 p->defrect = s.r;
2408
2409 return 0;
2410 }
2411
2412 static int v4l_log_status(const struct v4l2_ioctl_ops *ops,
2413 struct file *file, void *fh, void *arg)
2414 {
2415 struct video_device *vfd = video_devdata(file);
2416 int ret;
2417
2418 if (vfd->v4l2_dev)
2419 pr_info("%s: ================= START STATUS =================\n",
2420 vfd->v4l2_dev->name);
2421 ret = ops->vidioc_log_status(file, fh);
2422 if (vfd->v4l2_dev)
2423 pr_info("%s: ================== END STATUS ==================\n",
2424 vfd->v4l2_dev->name);
2425 return ret;
2426 }
2427
2428 static int v4l_dbg_g_register(const struct v4l2_ioctl_ops *ops,
2429 struct file *file, void *fh, void *arg)
2430 {
2431 #ifdef CONFIG_VIDEO_ADV_DEBUG
2432 struct v4l2_dbg_register *p = arg;
2433 struct video_device *vfd = video_devdata(file);
2434 struct v4l2_subdev *sd;
2435 int idx = 0;
2436
2437 if (!capable(CAP_SYS_ADMIN))
2438 return -EPERM;
2439 if (p->match.type == V4L2_CHIP_MATCH_SUBDEV) {
2440 if (vfd->v4l2_dev == NULL)
2441 return -EINVAL;
2442 v4l2_device_for_each_subdev(sd, vfd->v4l2_dev)
2443 if (p->match.addr == idx++)
2444 return v4l2_subdev_call(sd, core, g_register, p);
2445 return -EINVAL;
2446 }
2447 if (ops->vidioc_g_register && p->match.type == V4L2_CHIP_MATCH_BRIDGE &&
2448 (ops->vidioc_g_chip_info || p->match.addr == 0))
2449 return ops->vidioc_g_register(file, fh, p);
2450 return -EINVAL;
2451 #else
2452 return -ENOTTY;
2453 #endif
2454 }
2455
2456 static int v4l_dbg_s_register(const struct v4l2_ioctl_ops *ops,
2457 struct file *file, void *fh, void *arg)
2458 {
2459 #ifdef CONFIG_VIDEO_ADV_DEBUG
2460 const struct v4l2_dbg_register *p = arg;
2461 struct video_device *vfd = video_devdata(file);
2462 struct v4l2_subdev *sd;
2463 int idx = 0;
2464
2465 if (!capable(CAP_SYS_ADMIN))
2466 return -EPERM;
2467 if (p->match.type == V4L2_CHIP_MATCH_SUBDEV) {
2468 if (vfd->v4l2_dev == NULL)
2469 return -EINVAL;
2470 v4l2_device_for_each_subdev(sd, vfd->v4l2_dev)
2471 if (p->match.addr == idx++)
2472 return v4l2_subdev_call(sd, core, s_register, p);
2473 return -EINVAL;
2474 }
2475 if (ops->vidioc_s_register && p->match.type == V4L2_CHIP_MATCH_BRIDGE &&
2476 (ops->vidioc_g_chip_info || p->match.addr == 0))
2477 return ops->vidioc_s_register(file, fh, p);
2478 return -EINVAL;
2479 #else
2480 return -ENOTTY;
2481 #endif
2482 }
2483
2484 static int v4l_dbg_g_chip_info(const struct v4l2_ioctl_ops *ops,
2485 struct file *file, void *fh, void *arg)
2486 {
2487 #ifdef CONFIG_VIDEO_ADV_DEBUG
2488 struct video_device *vfd = video_devdata(file);
2489 struct v4l2_dbg_chip_info *p = arg;
2490 struct v4l2_subdev *sd;
2491 int idx = 0;
2492
2493 switch (p->match.type) {
2494 case V4L2_CHIP_MATCH_BRIDGE:
2495 if (ops->vidioc_s_register)
2496 p->flags |= V4L2_CHIP_FL_WRITABLE;
2497 if (ops->vidioc_g_register)
2498 p->flags |= V4L2_CHIP_FL_READABLE;
2499 strscpy(p->name, vfd->v4l2_dev->name, sizeof(p->name));
2500 if (ops->vidioc_g_chip_info)
2501 return ops->vidioc_g_chip_info(file, fh, arg);
2502 if (p->match.addr)
2503 return -EINVAL;
2504 return 0;
2505
2506 case V4L2_CHIP_MATCH_SUBDEV:
2507 if (vfd->v4l2_dev == NULL)
2508 break;
2509 v4l2_device_for_each_subdev(sd, vfd->v4l2_dev) {
2510 if (p->match.addr != idx++)
2511 continue;
2512 if (sd->ops->core && sd->ops->core->s_register)
2513 p->flags |= V4L2_CHIP_FL_WRITABLE;
2514 if (sd->ops->core && sd->ops->core->g_register)
2515 p->flags |= V4L2_CHIP_FL_READABLE;
2516 strscpy(p->name, sd->name, sizeof(p->name));
2517 return 0;
2518 }
2519 break;
2520 }
2521 return -EINVAL;
2522 #else
2523 return -ENOTTY;
2524 #endif
2525 }
2526
2527 static int v4l_dqevent(const struct v4l2_ioctl_ops *ops,
2528 struct file *file, void *fh, void *arg)
2529 {
2530 return v4l2_event_dequeue(fh, arg, file->f_flags & O_NONBLOCK);
2531 }
2532
2533 static int v4l_subscribe_event(const struct v4l2_ioctl_ops *ops,
2534 struct file *file, void *fh, void *arg)
2535 {
2536 return ops->vidioc_subscribe_event(fh, arg);
2537 }
2538
2539 static int v4l_unsubscribe_event(const struct v4l2_ioctl_ops *ops,
2540 struct file *file, void *fh, void *arg)
2541 {
2542 return ops->vidioc_unsubscribe_event(fh, arg);
2543 }
2544
2545 static int v4l_g_sliced_vbi_cap(const struct v4l2_ioctl_ops *ops,
2546 struct file *file, void *fh, void *arg)
2547 {
2548 struct v4l2_sliced_vbi_cap *p = arg;
2549 int ret = check_fmt(file, p->type);
2550
2551 if (ret)
2552 return ret;
2553
2554
2555 memset(p, 0, offsetof(struct v4l2_sliced_vbi_cap, type));
2556
2557 return ops->vidioc_g_sliced_vbi_cap(file, fh, p);
2558 }
2559
2560 static int v4l_enum_freq_bands(const struct v4l2_ioctl_ops *ops,
2561 struct file *file, void *fh, void *arg)
2562 {
2563 struct video_device *vfd = video_devdata(file);
2564 struct v4l2_frequency_band *p = arg;
2565 enum v4l2_tuner_type type;
2566 int err;
2567
2568 if (vfd->vfl_type == VFL_TYPE_SDR) {
2569 if (p->type != V4L2_TUNER_SDR && p->type != V4L2_TUNER_RF)
2570 return -EINVAL;
2571 type = p->type;
2572 } else {
2573 type = (vfd->vfl_type == VFL_TYPE_RADIO) ?
2574 V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV;
2575 if (type != p->type)
2576 return -EINVAL;
2577 }
2578 if (ops->vidioc_enum_freq_bands) {
2579 err = ops->vidioc_enum_freq_bands(file, fh, p);
2580 if (err != -ENOTTY)
2581 return err;
2582 }
2583 if (is_valid_ioctl(vfd, VIDIOC_G_TUNER)) {
2584 struct v4l2_tuner t = {
2585 .index = p->tuner,
2586 .type = type,
2587 };
2588
2589 if (p->index)
2590 return -EINVAL;
2591 err = ops->vidioc_g_tuner(file, fh, &t);
2592 if (err)
2593 return err;
2594 p->capability = t.capability | V4L2_TUNER_CAP_FREQ_BANDS;
2595 p->rangelow = t.rangelow;
2596 p->rangehigh = t.rangehigh;
2597 p->modulation = (type == V4L2_TUNER_RADIO) ?
2598 V4L2_BAND_MODULATION_FM : V4L2_BAND_MODULATION_VSB;
2599 return 0;
2600 }
2601 if (is_valid_ioctl(vfd, VIDIOC_G_MODULATOR)) {
2602 struct v4l2_modulator m = {
2603 .index = p->tuner,
2604 };
2605
2606 if (type != V4L2_TUNER_RADIO)
2607 return -EINVAL;
2608 if (p->index)
2609 return -EINVAL;
2610 err = ops->vidioc_g_modulator(file, fh, &m);
2611 if (err)
2612 return err;
2613 p->capability = m.capability | V4L2_TUNER_CAP_FREQ_BANDS;
2614 p->rangelow = m.rangelow;
2615 p->rangehigh = m.rangehigh;
2616 p->modulation = (type == V4L2_TUNER_RADIO) ?
2617 V4L2_BAND_MODULATION_FM : V4L2_BAND_MODULATION_VSB;
2618 return 0;
2619 }
2620 return -ENOTTY;
2621 }
2622
2623 struct v4l2_ioctl_info {
2624 unsigned int ioctl;
2625 u32 flags;
2626 const char * const name;
2627 int (*func)(const struct v4l2_ioctl_ops *ops, struct file *file,
2628 void *fh, void *p);
2629 void (*debug)(const void *arg, bool write_only);
2630 };
2631
2632
2633 #define INFO_FL_PRIO (1 << 0)
2634
2635 #define INFO_FL_CTRL (1 << 1)
2636
2637 #define INFO_FL_QUEUE (1 << 2)
2638
2639 #define INFO_FL_ALWAYS_COPY (1 << 3)
2640
2641 #define INFO_FL_CLEAR(v4l2_struct, field) \
2642 ((offsetof(struct v4l2_struct, field) + \
2643 sizeof(((struct v4l2_struct *)0)->field)) << 16)
2644 #define INFO_FL_CLEAR_MASK (_IOC_SIZEMASK << 16)
2645
2646 #define DEFINE_V4L_STUB_FUNC(_vidioc) \
2647 static int v4l_stub_ ## _vidioc( \
2648 const struct v4l2_ioctl_ops *ops, \
2649 struct file *file, void *fh, void *p) \
2650 { \
2651 return ops->vidioc_ ## _vidioc(file, fh, p); \
2652 }
2653
2654 #define IOCTL_INFO(_ioctl, _func, _debug, _flags) \
2655 [_IOC_NR(_ioctl)] = { \
2656 .ioctl = _ioctl, \
2657 .flags = _flags, \
2658 .name = #_ioctl, \
2659 .func = _func, \
2660 .debug = _debug, \
2661 }
2662
2663 DEFINE_V4L_STUB_FUNC(g_fbuf)
2664 DEFINE_V4L_STUB_FUNC(s_fbuf)
2665 DEFINE_V4L_STUB_FUNC(expbuf)
2666 DEFINE_V4L_STUB_FUNC(g_std)
2667 DEFINE_V4L_STUB_FUNC(g_audio)
2668 DEFINE_V4L_STUB_FUNC(s_audio)
2669 DEFINE_V4L_STUB_FUNC(g_input)
2670 DEFINE_V4L_STUB_FUNC(g_edid)
2671 DEFINE_V4L_STUB_FUNC(s_edid)
2672 DEFINE_V4L_STUB_FUNC(g_output)
2673 DEFINE_V4L_STUB_FUNC(g_audout)
2674 DEFINE_V4L_STUB_FUNC(s_audout)
2675 DEFINE_V4L_STUB_FUNC(g_jpegcomp)
2676 DEFINE_V4L_STUB_FUNC(s_jpegcomp)
2677 DEFINE_V4L_STUB_FUNC(enumaudio)
2678 DEFINE_V4L_STUB_FUNC(enumaudout)
2679 DEFINE_V4L_STUB_FUNC(enum_framesizes)
2680 DEFINE_V4L_STUB_FUNC(enum_frameintervals)
2681 DEFINE_V4L_STUB_FUNC(g_enc_index)
2682 DEFINE_V4L_STUB_FUNC(encoder_cmd)
2683 DEFINE_V4L_STUB_FUNC(try_encoder_cmd)
2684 DEFINE_V4L_STUB_FUNC(decoder_cmd)
2685 DEFINE_V4L_STUB_FUNC(try_decoder_cmd)
2686 DEFINE_V4L_STUB_FUNC(s_dv_timings)
2687 DEFINE_V4L_STUB_FUNC(g_dv_timings)
2688 DEFINE_V4L_STUB_FUNC(enum_dv_timings)
2689 DEFINE_V4L_STUB_FUNC(query_dv_timings)
2690 DEFINE_V4L_STUB_FUNC(dv_timings_cap)
2691
2692 static const struct v4l2_ioctl_info v4l2_ioctls[] = {
2693 IOCTL_INFO(VIDIOC_QUERYCAP, v4l_querycap, v4l_print_querycap, 0),
2694 IOCTL_INFO(VIDIOC_ENUM_FMT, v4l_enum_fmt, v4l_print_fmtdesc, INFO_FL_CLEAR(v4l2_fmtdesc, type)),
2695 IOCTL_INFO(VIDIOC_G_FMT, v4l_g_fmt, v4l_print_format, 0),
2696 IOCTL_INFO(VIDIOC_S_FMT, v4l_s_fmt, v4l_print_format, INFO_FL_PRIO),
2697 IOCTL_INFO(VIDIOC_REQBUFS, v4l_reqbufs, v4l_print_requestbuffers, INFO_FL_PRIO | INFO_FL_QUEUE),
2698 IOCTL_INFO(VIDIOC_QUERYBUF, v4l_querybuf, v4l_print_buffer, INFO_FL_QUEUE | INFO_FL_CLEAR(v4l2_buffer, length)),
2699 IOCTL_INFO(VIDIOC_G_FBUF, v4l_stub_g_fbuf, v4l_print_framebuffer, 0),
2700 IOCTL_INFO(VIDIOC_S_FBUF, v4l_stub_s_fbuf, v4l_print_framebuffer, INFO_FL_PRIO),
2701 IOCTL_INFO(VIDIOC_OVERLAY, v4l_overlay, v4l_print_u32, INFO_FL_PRIO),
2702 IOCTL_INFO(VIDIOC_QBUF, v4l_qbuf, v4l_print_buffer, INFO_FL_QUEUE),
2703 IOCTL_INFO(VIDIOC_EXPBUF, v4l_stub_expbuf, v4l_print_exportbuffer, INFO_FL_QUEUE | INFO_FL_CLEAR(v4l2_exportbuffer, flags)),
2704 IOCTL_INFO(VIDIOC_DQBUF, v4l_dqbuf, v4l_print_buffer, INFO_FL_QUEUE),
2705 IOCTL_INFO(VIDIOC_STREAMON, v4l_streamon, v4l_print_buftype, INFO_FL_PRIO | INFO_FL_QUEUE),
2706 IOCTL_INFO(VIDIOC_STREAMOFF, v4l_streamoff, v4l_print_buftype, INFO_FL_PRIO | INFO_FL_QUEUE),
2707 IOCTL_INFO(VIDIOC_G_PARM, v4l_g_parm, v4l_print_streamparm, INFO_FL_CLEAR(v4l2_streamparm, type)),
2708 IOCTL_INFO(VIDIOC_S_PARM, v4l_s_parm, v4l_print_streamparm, INFO_FL_PRIO),
2709 IOCTL_INFO(VIDIOC_G_STD, v4l_stub_g_std, v4l_print_std, 0),
2710 IOCTL_INFO(VIDIOC_S_STD, v4l_s_std, v4l_print_std, INFO_FL_PRIO),
2711 IOCTL_INFO(VIDIOC_ENUMSTD, v4l_enumstd, v4l_print_standard, INFO_FL_CLEAR(v4l2_standard, index)),
2712 IOCTL_INFO(VIDIOC_ENUMINPUT, v4l_enuminput, v4l_print_enuminput, INFO_FL_CLEAR(v4l2_input, index)),
2713 IOCTL_INFO(VIDIOC_G_CTRL, v4l_g_ctrl, v4l_print_control, INFO_FL_CTRL | INFO_FL_CLEAR(v4l2_control, id)),
2714 IOCTL_INFO(VIDIOC_S_CTRL, v4l_s_ctrl, v4l_print_control, INFO_FL_PRIO | INFO_FL_CTRL),
2715 IOCTL_INFO(VIDIOC_G_TUNER, v4l_g_tuner, v4l_print_tuner, INFO_FL_CLEAR(v4l2_tuner, index)),
2716 IOCTL_INFO(VIDIOC_S_TUNER, v4l_s_tuner, v4l_print_tuner, INFO_FL_PRIO),
2717 IOCTL_INFO(VIDIOC_G_AUDIO, v4l_stub_g_audio, v4l_print_audio, 0),
2718 IOCTL_INFO(VIDIOC_S_AUDIO, v4l_stub_s_audio, v4l_print_audio, INFO_FL_PRIO),
2719 IOCTL_INFO(VIDIOC_QUERYCTRL, v4l_queryctrl, v4l_print_queryctrl, INFO_FL_CTRL | INFO_FL_CLEAR(v4l2_queryctrl, id)),
2720 IOCTL_INFO(VIDIOC_QUERYMENU, v4l_querymenu, v4l_print_querymenu, INFO_FL_CTRL | INFO_FL_CLEAR(v4l2_querymenu, index)),
2721 IOCTL_INFO(VIDIOC_G_INPUT, v4l_stub_g_input, v4l_print_u32, 0),
2722 IOCTL_INFO(VIDIOC_S_INPUT, v4l_s_input, v4l_print_u32, INFO_FL_PRIO),
2723 IOCTL_INFO(VIDIOC_G_EDID, v4l_stub_g_edid, v4l_print_edid, INFO_FL_ALWAYS_COPY),
2724 IOCTL_INFO(VIDIOC_S_EDID, v4l_stub_s_edid, v4l_print_edid, INFO_FL_PRIO | INFO_FL_ALWAYS_COPY),
2725 IOCTL_INFO(VIDIOC_G_OUTPUT, v4l_stub_g_output, v4l_print_u32, 0),
2726 IOCTL_INFO(VIDIOC_S_OUTPUT, v4l_s_output, v4l_print_u32, INFO_FL_PRIO),
2727 IOCTL_INFO(VIDIOC_ENUMOUTPUT, v4l_enumoutput, v4l_print_enumoutput, INFO_FL_CLEAR(v4l2_output, index)),
2728 IOCTL_INFO(VIDIOC_G_AUDOUT, v4l_stub_g_audout, v4l_print_audioout, 0),
2729 IOCTL_INFO(VIDIOC_S_AUDOUT, v4l_stub_s_audout, v4l_print_audioout, INFO_FL_PRIO),
2730 IOCTL_INFO(VIDIOC_G_MODULATOR, v4l_g_modulator, v4l_print_modulator, INFO_FL_CLEAR(v4l2_modulator, index)),
2731 IOCTL_INFO(VIDIOC_S_MODULATOR, v4l_s_modulator, v4l_print_modulator, INFO_FL_PRIO),
2732 IOCTL_INFO(VIDIOC_G_FREQUENCY, v4l_g_frequency, v4l_print_frequency, INFO_FL_CLEAR(v4l2_frequency, tuner)),
2733 IOCTL_INFO(VIDIOC_S_FREQUENCY, v4l_s_frequency, v4l_print_frequency, INFO_FL_PRIO),
2734 IOCTL_INFO(VIDIOC_CROPCAP, v4l_cropcap, v4l_print_cropcap, INFO_FL_CLEAR(v4l2_cropcap, type)),
2735 IOCTL_INFO(VIDIOC_G_CROP, v4l_g_crop, v4l_print_crop, INFO_FL_CLEAR(v4l2_crop, type)),
2736 IOCTL_INFO(VIDIOC_S_CROP, v4l_s_crop, v4l_print_crop, INFO_FL_PRIO),
2737 IOCTL_INFO(VIDIOC_G_SELECTION, v4l_g_selection, v4l_print_selection, INFO_FL_CLEAR(v4l2_selection, r)),
2738 IOCTL_INFO(VIDIOC_S_SELECTION, v4l_s_selection, v4l_print_selection, INFO_FL_PRIO | INFO_FL_CLEAR(v4l2_selection, r)),
2739 IOCTL_INFO(VIDIOC_G_JPEGCOMP, v4l_stub_g_jpegcomp, v4l_print_jpegcompression, 0),
2740 IOCTL_INFO(VIDIOC_S_JPEGCOMP, v4l_stub_s_jpegcomp, v4l_print_jpegcompression, INFO_FL_PRIO),
2741 IOCTL_INFO(VIDIOC_QUERYSTD, v4l_querystd, v4l_print_std, 0),
2742 IOCTL_INFO(VIDIOC_TRY_FMT, v4l_try_fmt, v4l_print_format, 0),
2743 IOCTL_INFO(VIDIOC_ENUMAUDIO, v4l_stub_enumaudio, v4l_print_audio, INFO_FL_CLEAR(v4l2_audio, index)),
2744 IOCTL_INFO(VIDIOC_ENUMAUDOUT, v4l_stub_enumaudout, v4l_print_audioout, INFO_FL_CLEAR(v4l2_audioout, index)),
2745 IOCTL_INFO(VIDIOC_G_PRIORITY, v4l_g_priority, v4l_print_u32, 0),
2746 IOCTL_INFO(VIDIOC_S_PRIORITY, v4l_s_priority, v4l_print_u32, INFO_FL_PRIO),
2747 IOCTL_INFO(VIDIOC_G_SLICED_VBI_CAP, v4l_g_sliced_vbi_cap, v4l_print_sliced_vbi_cap, INFO_FL_CLEAR(v4l2_sliced_vbi_cap, type)),
2748 IOCTL_INFO(VIDIOC_LOG_STATUS, v4l_log_status, v4l_print_newline, 0),
2749 IOCTL_INFO(VIDIOC_G_EXT_CTRLS, v4l_g_ext_ctrls, v4l_print_ext_controls, INFO_FL_CTRL),
2750 IOCTL_INFO(VIDIOC_S_EXT_CTRLS, v4l_s_ext_ctrls, v4l_print_ext_controls, INFO_FL_PRIO | INFO_FL_CTRL),
2751 IOCTL_INFO(VIDIOC_TRY_EXT_CTRLS, v4l_try_ext_ctrls, v4l_print_ext_controls, INFO_FL_CTRL),
2752 IOCTL_INFO(VIDIOC_ENUM_FRAMESIZES, v4l_stub_enum_framesizes, v4l_print_frmsizeenum, INFO_FL_CLEAR(v4l2_frmsizeenum, pixel_format)),
2753 IOCTL_INFO(VIDIOC_ENUM_FRAMEINTERVALS, v4l_stub_enum_frameintervals, v4l_print_frmivalenum, INFO_FL_CLEAR(v4l2_frmivalenum, height)),
2754 IOCTL_INFO(VIDIOC_G_ENC_INDEX, v4l_stub_g_enc_index, v4l_print_enc_idx, 0),
2755 IOCTL_INFO(VIDIOC_ENCODER_CMD, v4l_stub_encoder_cmd, v4l_print_encoder_cmd, INFO_FL_PRIO | INFO_FL_CLEAR(v4l2_encoder_cmd, flags)),
2756 IOCTL_INFO(VIDIOC_TRY_ENCODER_CMD, v4l_stub_try_encoder_cmd, v4l_print_encoder_cmd, INFO_FL_CLEAR(v4l2_encoder_cmd, flags)),
2757 IOCTL_INFO(VIDIOC_DECODER_CMD, v4l_stub_decoder_cmd, v4l_print_decoder_cmd, INFO_FL_PRIO),
2758 IOCTL_INFO(VIDIOC_TRY_DECODER_CMD, v4l_stub_try_decoder_cmd, v4l_print_decoder_cmd, 0),
2759 IOCTL_INFO(VIDIOC_DBG_S_REGISTER, v4l_dbg_s_register, v4l_print_dbg_register, 0),
2760 IOCTL_INFO(VIDIOC_DBG_G_REGISTER, v4l_dbg_g_register, v4l_print_dbg_register, 0),
2761 IOCTL_INFO(VIDIOC_S_HW_FREQ_SEEK, v4l_s_hw_freq_seek, v4l_print_hw_freq_seek, INFO_FL_PRIO),
2762 IOCTL_INFO(VIDIOC_S_DV_TIMINGS, v4l_stub_s_dv_timings, v4l_print_dv_timings, INFO_FL_PRIO | INFO_FL_CLEAR(v4l2_dv_timings, bt.flags)),
2763 IOCTL_INFO(VIDIOC_G_DV_TIMINGS, v4l_stub_g_dv_timings, v4l_print_dv_timings, 0),
2764 IOCTL_INFO(VIDIOC_DQEVENT, v4l_dqevent, v4l_print_event, 0),
2765 IOCTL_INFO(VIDIOC_SUBSCRIBE_EVENT, v4l_subscribe_event, v4l_print_event_subscription, 0),
2766 IOCTL_INFO(VIDIOC_UNSUBSCRIBE_EVENT, v4l_unsubscribe_event, v4l_print_event_subscription, 0),
2767 IOCTL_INFO(VIDIOC_CREATE_BUFS, v4l_create_bufs, v4l_print_create_buffers, INFO_FL_PRIO | INFO_FL_QUEUE),
2768 IOCTL_INFO(VIDIOC_PREPARE_BUF, v4l_prepare_buf, v4l_print_buffer, INFO_FL_QUEUE),
2769 IOCTL_INFO(VIDIOC_ENUM_DV_TIMINGS, v4l_stub_enum_dv_timings, v4l_print_enum_dv_timings, INFO_FL_CLEAR(v4l2_enum_dv_timings, pad)),
2770 IOCTL_INFO(VIDIOC_QUERY_DV_TIMINGS, v4l_stub_query_dv_timings, v4l_print_dv_timings, INFO_FL_ALWAYS_COPY),
2771 IOCTL_INFO(VIDIOC_DV_TIMINGS_CAP, v4l_stub_dv_timings_cap, v4l_print_dv_timings_cap, INFO_FL_CLEAR(v4l2_dv_timings_cap, pad)),
2772 IOCTL_INFO(VIDIOC_ENUM_FREQ_BANDS, v4l_enum_freq_bands, v4l_print_freq_band, 0),
2773 IOCTL_INFO(VIDIOC_DBG_G_CHIP_INFO, v4l_dbg_g_chip_info, v4l_print_dbg_chip_info, INFO_FL_CLEAR(v4l2_dbg_chip_info, match)),
2774 IOCTL_INFO(VIDIOC_QUERY_EXT_CTRL, v4l_query_ext_ctrl, v4l_print_query_ext_ctrl, INFO_FL_CTRL | INFO_FL_CLEAR(v4l2_query_ext_ctrl, id)),
2775 };
2776 #define V4L2_IOCTLS ARRAY_SIZE(v4l2_ioctls)
2777
2778 static bool v4l2_is_known_ioctl(unsigned int cmd)
2779 {
2780 if (_IOC_NR(cmd) >= V4L2_IOCTLS)
2781 return false;
2782 return v4l2_ioctls[_IOC_NR(cmd)].ioctl == cmd;
2783 }
2784
2785 static struct mutex *v4l2_ioctl_get_lock(struct video_device *vdev,
2786 struct v4l2_fh *vfh, unsigned int cmd,
2787 void *arg)
2788 {
2789 if (_IOC_NR(cmd) >= V4L2_IOCTLS)
2790 return vdev->lock;
2791 #if IS_ENABLED(CONFIG_V4L2_MEM2MEM_DEV)
2792 if (vfh && vfh->m2m_ctx &&
2793 (v4l2_ioctls[_IOC_NR(cmd)].flags & INFO_FL_QUEUE)) {
2794 if (vfh->m2m_ctx->q_lock)
2795 return vfh->m2m_ctx->q_lock;
2796 }
2797 #endif
2798 if (vdev->queue && vdev->queue->lock &&
2799 (v4l2_ioctls[_IOC_NR(cmd)].flags & INFO_FL_QUEUE))
2800 return vdev->queue->lock;
2801 return vdev->lock;
2802 }
2803
2804
2805
2806 void v4l_printk_ioctl(const char *prefix, unsigned int cmd)
2807 {
2808 const char *dir, *type;
2809
2810 if (prefix)
2811 printk(KERN_DEBUG "%s: ", prefix);
2812
2813 switch (_IOC_TYPE(cmd)) {
2814 case 'd':
2815 type = "v4l2_int";
2816 break;
2817 case 'V':
2818 if (_IOC_NR(cmd) >= V4L2_IOCTLS) {
2819 type = "v4l2";
2820 break;
2821 }
2822 pr_cont("%s", v4l2_ioctls[_IOC_NR(cmd)].name);
2823 return;
2824 default:
2825 type = "unknown";
2826 break;
2827 }
2828
2829 switch (_IOC_DIR(cmd)) {
2830 case _IOC_NONE: dir = "--"; break;
2831 case _IOC_READ: dir = "r-"; break;
2832 case _IOC_WRITE: dir = "-w"; break;
2833 case _IOC_READ | _IOC_WRITE: dir = "rw"; break;
2834 default: dir = "*ERR*"; break;
2835 }
2836 pr_cont("%s ioctl '%c', dir=%s, #%d (0x%08x)",
2837 type, _IOC_TYPE(cmd), dir, _IOC_NR(cmd), cmd);
2838 }
2839 EXPORT_SYMBOL(v4l_printk_ioctl);
2840
2841 static long __video_do_ioctl(struct file *file,
2842 unsigned int cmd, void *arg)
2843 {
2844 struct video_device *vfd = video_devdata(file);
2845 struct mutex *req_queue_lock = NULL;
2846 struct mutex *lock;
2847 const struct v4l2_ioctl_ops *ops = vfd->ioctl_ops;
2848 bool write_only = false;
2849 struct v4l2_ioctl_info default_info;
2850 const struct v4l2_ioctl_info *info;
2851 void *fh = file->private_data;
2852 struct v4l2_fh *vfh = NULL;
2853 int dev_debug = vfd->dev_debug;
2854 long ret = -ENOTTY;
2855
2856 if (ops == NULL) {
2857 pr_warn("%s: has no ioctl_ops.\n",
2858 video_device_node_name(vfd));
2859 return ret;
2860 }
2861
2862 if (test_bit(V4L2_FL_USES_V4L2_FH, &vfd->flags))
2863 vfh = file->private_data;
2864
2865
2866
2867
2868
2869
2870
2871 if (v4l2_device_supports_requests(vfd->v4l2_dev) &&
2872 (cmd == VIDIOC_STREAMON || cmd == VIDIOC_STREAMOFF)) {
2873 req_queue_lock = &vfd->v4l2_dev->mdev->req_queue_mutex;
2874
2875 if (mutex_lock_interruptible(req_queue_lock))
2876 return -ERESTARTSYS;
2877 }
2878
2879 lock = v4l2_ioctl_get_lock(vfd, vfh, cmd, arg);
2880
2881 if (lock && mutex_lock_interruptible(lock)) {
2882 if (req_queue_lock)
2883 mutex_unlock(req_queue_lock);
2884 return -ERESTARTSYS;
2885 }
2886
2887 if (!video_is_registered(vfd)) {
2888 ret = -ENODEV;
2889 goto unlock;
2890 }
2891
2892 if (v4l2_is_known_ioctl(cmd)) {
2893 info = &v4l2_ioctls[_IOC_NR(cmd)];
2894
2895 if (!test_bit(_IOC_NR(cmd), vfd->valid_ioctls) &&
2896 !((info->flags & INFO_FL_CTRL) && vfh && vfh->ctrl_handler))
2897 goto done;
2898
2899 if (vfh && (info->flags & INFO_FL_PRIO)) {
2900 ret = v4l2_prio_check(vfd->prio, vfh->prio);
2901 if (ret)
2902 goto done;
2903 }
2904 } else {
2905 default_info.ioctl = cmd;
2906 default_info.flags = 0;
2907 default_info.debug = v4l_print_default;
2908 info = &default_info;
2909 }
2910
2911 write_only = _IOC_DIR(cmd) == _IOC_WRITE;
2912 if (info != &default_info) {
2913 ret = info->func(ops, file, fh, arg);
2914 } else if (!ops->vidioc_default) {
2915 ret = -ENOTTY;
2916 } else {
2917 ret = ops->vidioc_default(file, fh,
2918 vfh ? v4l2_prio_check(vfd->prio, vfh->prio) >= 0 : 0,
2919 cmd, arg);
2920 }
2921
2922 done:
2923 if (dev_debug & (V4L2_DEV_DEBUG_IOCTL | V4L2_DEV_DEBUG_IOCTL_ARG)) {
2924 if (!(dev_debug & V4L2_DEV_DEBUG_STREAMING) &&
2925 (cmd == VIDIOC_QBUF || cmd == VIDIOC_DQBUF))
2926 goto unlock;
2927
2928 v4l_printk_ioctl(video_device_node_name(vfd), cmd);
2929 if (ret < 0)
2930 pr_cont(": error %ld", ret);
2931 if (!(dev_debug & V4L2_DEV_DEBUG_IOCTL_ARG))
2932 pr_cont("\n");
2933 else if (_IOC_DIR(cmd) == _IOC_NONE)
2934 info->debug(arg, write_only);
2935 else {
2936 pr_cont(": ");
2937 info->debug(arg, write_only);
2938 }
2939 }
2940
2941 unlock:
2942 if (lock)
2943 mutex_unlock(lock);
2944 if (req_queue_lock)
2945 mutex_unlock(req_queue_lock);
2946 return ret;
2947 }
2948
2949 static int check_array_args(unsigned int cmd, void *parg, size_t *array_size,
2950 void __user **user_ptr, void ***kernel_ptr)
2951 {
2952 int ret = 0;
2953
2954 switch (cmd) {
2955 case VIDIOC_PREPARE_BUF:
2956 case VIDIOC_QUERYBUF:
2957 case VIDIOC_QBUF:
2958 case VIDIOC_DQBUF: {
2959 struct v4l2_buffer *buf = parg;
2960
2961 if (V4L2_TYPE_IS_MULTIPLANAR(buf->type) && buf->length > 0) {
2962 if (buf->length > VIDEO_MAX_PLANES) {
2963 ret = -EINVAL;
2964 break;
2965 }
2966 *user_ptr = (void __user *)buf->m.planes;
2967 *kernel_ptr = (void **)&buf->m.planes;
2968 *array_size = sizeof(struct v4l2_plane) * buf->length;
2969 ret = 1;
2970 }
2971 break;
2972 }
2973
2974 case VIDIOC_G_EDID:
2975 case VIDIOC_S_EDID: {
2976 struct v4l2_edid *edid = parg;
2977
2978 if (edid->blocks) {
2979 if (edid->blocks > 256) {
2980 ret = -EINVAL;
2981 break;
2982 }
2983 *user_ptr = (void __user *)edid->edid;
2984 *kernel_ptr = (void **)&edid->edid;
2985 *array_size = edid->blocks * 128;
2986 ret = 1;
2987 }
2988 break;
2989 }
2990
2991 case VIDIOC_S_EXT_CTRLS:
2992 case VIDIOC_G_EXT_CTRLS:
2993 case VIDIOC_TRY_EXT_CTRLS: {
2994 struct v4l2_ext_controls *ctrls = parg;
2995
2996 if (ctrls->count != 0) {
2997 if (ctrls->count > V4L2_CID_MAX_CTRLS) {
2998 ret = -EINVAL;
2999 break;
3000 }
3001 *user_ptr = (void __user *)ctrls->controls;
3002 *kernel_ptr = (void **)&ctrls->controls;
3003 *array_size = sizeof(struct v4l2_ext_control)
3004 * ctrls->count;
3005 ret = 1;
3006 }
3007 break;
3008 }
3009 }
3010
3011 return ret;
3012 }
3013
3014 long
3015 video_usercopy(struct file *file, unsigned int cmd, unsigned long arg,
3016 v4l2_kioctl func)
3017 {
3018 char sbuf[128];
3019 void *mbuf = NULL;
3020 void *parg = (void *)arg;
3021 long err = -EINVAL;
3022 bool has_array_args;
3023 bool always_copy = false;
3024 size_t array_size = 0;
3025 void __user *user_ptr = NULL;
3026 void **kernel_ptr = NULL;
3027 const size_t ioc_size = _IOC_SIZE(cmd);
3028
3029
3030 if (_IOC_DIR(cmd) != _IOC_NONE) {
3031 if (ioc_size <= sizeof(sbuf)) {
3032 parg = sbuf;
3033 } else {
3034
3035 mbuf = kvmalloc(ioc_size, GFP_KERNEL);
3036 if (NULL == mbuf)
3037 return -ENOMEM;
3038 parg = mbuf;
3039 }
3040
3041 err = -EFAULT;
3042 if (_IOC_DIR(cmd) & _IOC_WRITE) {
3043 unsigned int n = ioc_size;
3044
3045
3046
3047
3048
3049
3050
3051
3052 if (v4l2_is_known_ioctl(cmd)) {
3053 u32 flags = v4l2_ioctls[_IOC_NR(cmd)].flags;
3054
3055 if (flags & INFO_FL_CLEAR_MASK)
3056 n = (flags & INFO_FL_CLEAR_MASK) >> 16;
3057 always_copy = flags & INFO_FL_ALWAYS_COPY;
3058 }
3059
3060 if (copy_from_user(parg, (void __user *)arg, n))
3061 goto out;
3062
3063
3064 if (n < ioc_size)
3065 memset((u8 *)parg + n, 0, ioc_size - n);
3066 } else {
3067
3068 memset(parg, 0, ioc_size);
3069 }
3070 }
3071
3072 err = check_array_args(cmd, parg, &array_size, &user_ptr, &kernel_ptr);
3073 if (err < 0)
3074 goto out;
3075 has_array_args = err;
3076
3077 if (has_array_args) {
3078
3079
3080
3081
3082
3083
3084 mbuf = kvmalloc(array_size, GFP_KERNEL);
3085 err = -ENOMEM;
3086 if (NULL == mbuf)
3087 goto out_array_args;
3088 err = -EFAULT;
3089 if (copy_from_user(mbuf, user_ptr, array_size))
3090 goto out_array_args;
3091 *kernel_ptr = mbuf;
3092 }
3093
3094
3095 err = func(file, cmd, parg);
3096 if (err == -ENOTTY || err == -ENOIOCTLCMD) {
3097 err = -ENOTTY;
3098 goto out;
3099 }
3100
3101 if (err == 0) {
3102 if (cmd == VIDIOC_DQBUF)
3103 trace_v4l2_dqbuf(video_devdata(file)->minor, parg);
3104 else if (cmd == VIDIOC_QBUF)
3105 trace_v4l2_qbuf(video_devdata(file)->minor, parg);
3106 }
3107
3108 if (has_array_args) {
3109 *kernel_ptr = (void __force *)user_ptr;
3110 if (copy_to_user(user_ptr, mbuf, array_size))
3111 err = -EFAULT;
3112 goto out_array_args;
3113 }
3114
3115
3116
3117
3118 if (err < 0 && !always_copy)
3119 goto out;
3120
3121 out_array_args:
3122
3123 switch (_IOC_DIR(cmd)) {
3124 case _IOC_READ:
3125 case (_IOC_WRITE | _IOC_READ):
3126 if (copy_to_user((void __user *)arg, parg, ioc_size))
3127 err = -EFAULT;
3128 break;
3129 }
3130
3131 out:
3132 kvfree(mbuf);
3133 return err;
3134 }
3135
3136 long video_ioctl2(struct file *file,
3137 unsigned int cmd, unsigned long arg)
3138 {
3139 return video_usercopy(file, cmd, arg, __video_do_ioctl);
3140 }
3141 EXPORT_SYMBOL(video_ioctl2);