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Merge tag 'pm-6.16-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
[linux-2.6-block.git] / drivers / media / v4l2-core / v4l2-ioctl.c
CommitLineData
2874c5fd 1// SPDX-License-Identifier: GPL-2.0-or-later
35ea11ff
HV		 2/*
3 * Video capture interface for Linux version 2
4 *
5 * A generic framework to process V4L2 ioctl commands.
6 *
d9b01449 7 * Authors: Alan Cox, <alan@lxorguk.ukuu.org.uk> (version 1)
32590819 8 * Mauro Carvalho Chehab <mchehab@kernel.org> (version 2)
35ea11ff
HV		 9 */
10
8dbcc3fa 11#include <linux/compat.h>
758d90e1 12#include <linux/mm.h>
35ea11ff 13#include <linux/module.h>
5a0e3ad6 14#include <linux/slab.h>
35ea11ff
HV		 15#include <linux/types.h>
16#include <linux/kernel.h>
ae6db515 17#include <linux/version.h>
35ea11ff 18
a418bb3f 19#include <linux/v4l2-subdev.h>
35ea11ff
HV		 20#include <linux/videodev2.h>
21
f2d8b691 22#include <media/media-device.h> /* for media_set_bus_info() */
35ea11ff
HV		 23#include <media/v4l2-common.h>
24#include <media/v4l2-ioctl.h>
11bbc1ca 25#include <media/v4l2-ctrls.h>
d3d7c963
SA		 26#include <media/v4l2-fh.h>
27#include <media/v4l2-event.h>
99cd47bc 28#include <media/v4l2-device.h>
c139990e 29#include <media/videobuf2-v4l2.h>
77fa4e07 30#include <media/v4l2-mc.h>
d862bc08 31#include <media/v4l2-mem2mem.h>
35ea11ff 32
aa32f4c0
HV		 33#include <trace/events/v4l2.h>
34
73f35418
HV		 35#define is_valid_ioctl(vfd, cmd) test_bit(_IOC_NR(cmd), (vfd)->valid_ioctls)
36
35ea11ff
HV		 37struct std_descr {
38 v4l2_std_id std;
39 const char *descr;
40};
41
42static const struct std_descr standards[] = {
6e6a8b5a
MCC		 43 { V4L2_STD_NTSC, "NTSC" },
44 { V4L2_STD_NTSC_M, "NTSC-M" },
45 { V4L2_STD_NTSC_M_JP, "NTSC-M-JP" },
35ea11ff 46 { V4L2_STD_NTSC_M_KR, "NTSC-M-KR" },
6e6a8b5a
MCC		 47 { V4L2_STD_NTSC_443, "NTSC-443" },
48 { V4L2_STD_PAL, "PAL" },
49 { V4L2_STD_PAL_BG, "PAL-BG" },
50 { V4L2_STD_PAL_B, "PAL-B" },
51 { V4L2_STD_PAL_B1, "PAL-B1" },
52 { V4L2_STD_PAL_G, "PAL-G" },
53 { V4L2_STD_PAL_H, "PAL-H" },
54 { V4L2_STD_PAL_I, "PAL-I" },
55 { V4L2_STD_PAL_DK, "PAL-DK" },
56 { V4L2_STD_PAL_D, "PAL-D" },
57 { V4L2_STD_PAL_D1, "PAL-D1" },
58 { V4L2_STD_PAL_K, "PAL-K" },
59 { V4L2_STD_PAL_M, "PAL-M" },
60 { V4L2_STD_PAL_N, "PAL-N" },
61 { V4L2_STD_PAL_Nc, "PAL-Nc" },
62 { V4L2_STD_PAL_60, "PAL-60" },
63 { V4L2_STD_SECAM, "SECAM" },
64 { V4L2_STD_SECAM_B, "SECAM-B" },
65 { V4L2_STD_SECAM_G, "SECAM-G" },
66 { V4L2_STD_SECAM_H, "SECAM-H" },
67 { V4L2_STD_SECAM_DK, "SECAM-DK" },
68 { V4L2_STD_SECAM_D, "SECAM-D" },
69 { V4L2_STD_SECAM_K, "SECAM-K" },
70 { V4L2_STD_SECAM_K1, "SECAM-K1" },
71 { V4L2_STD_SECAM_L, "SECAM-L" },
72 { V4L2_STD_SECAM_LC, "SECAM-Lc" },
73 { 0, "Unknown" }
35ea11ff
HV		 74};
75
76/* video4linux standard ID conversion to standard name
77 */
78const char *v4l2_norm_to_name(v4l2_std_id id)
79{
80 u32 myid = id;
81 int i;
82
83 /* HACK: ppc32 architecture doesn't have __ucmpdi2 function to handle
4faf7066 84 64 bit comparisons. So, on that architecture, with some gcc
35ea11ff
HV		 85 variants, compilation fails. Currently, the max value is 30bit wide.
86 */
87 BUG_ON(myid != id);
88
89 for (i = 0; standards[i].std; i++)
90 if (myid == standards[i].std)
91 break;
92 return standards[i].descr;
93}
94EXPORT_SYMBOL(v4l2_norm_to_name);
95
51f0b8d5
TP		 96/* Returns frame period for the given standard */
97void v4l2_video_std_frame_period(int id, struct v4l2_fract *frameperiod)
98{
99 if (id & V4L2_STD_525_60) {
100 frameperiod->numerator = 1001;
101 frameperiod->denominator = 30000;
102 } else {
103 frameperiod->numerator = 1;
104 frameperiod->denominator = 25;
105 }
106}
107EXPORT_SYMBOL(v4l2_video_std_frame_period);
108
35ea11ff
HV		 109/* Fill in the fields of a v4l2_standard structure according to the
110 'id' and 'transmission' parameters. Returns negative on error. */
111int v4l2_video_std_construct(struct v4l2_standard *vs,
112 int id, const char *name)
113{
51f0b8d5
TP		 114 vs->id = id;
115 v4l2_video_std_frame_period(id, &vs->frameperiod);
116 vs->framelines = (id & V4L2_STD_525_60) ? 525 : 625;
c0decac1 117 strscpy(vs->name, name, sizeof(vs->name));
35ea11ff
HV		 118 return 0;
119}
120EXPORT_SYMBOL(v4l2_video_std_construct);
121
aa2f8871
NS		 122/* Fill in the fields of a v4l2_standard structure according to the
123 * 'id' and 'vs->index' parameters. Returns negative on error. */
124int v4l_video_std_enumstd(struct v4l2_standard *vs, v4l2_std_id id)
125{
126 v4l2_std_id curr_id = 0;
127 unsigned int index = vs->index, i, j = 0;
128 const char *descr = "";
129
130 /* Return -ENODATA if the id for the current input
131 or output is 0, meaning that it doesn't support this API. */
132 if (id == 0)
133 return -ENODATA;
134
135 /* Return norm array in a canonical way */
136 for (i = 0; i <= index && id; i++) {
137 /* last std value in the standards array is 0, so this
138 while always ends there since (id & 0) == 0. */
139 while ((id & standards[j].std) != standards[j].std)
140 j++;
141 curr_id = standards[j].std;
142 descr = standards[j].descr;
143 j++;
144 if (curr_id == 0)
145 break;
146 if (curr_id != V4L2_STD_PAL &&
147 curr_id != V4L2_STD_SECAM &&
148 curr_id != V4L2_STD_NTSC)
149 id &= ~curr_id;
150 }
151 if (i <= index)
152 return -EINVAL;
153
154 v4l2_video_std_construct(vs, curr_id, descr);
155 return 0;
156}
157
35ea11ff
HV		 158/* ----------------------------------------------------------------- */
159/* some arrays for pretty-printing debug messages of enum types */
160
161const char *v4l2_field_names[] = {
162 [V4L2_FIELD_ANY] = "any",
163 [V4L2_FIELD_NONE] = "none",
164 [V4L2_FIELD_TOP] = "top",
165 [V4L2_FIELD_BOTTOM] = "bottom",
166 [V4L2_FIELD_INTERLACED] = "interlaced",
167 [V4L2_FIELD_SEQ_TB] = "seq-tb",
168 [V4L2_FIELD_SEQ_BT] = "seq-bt",
169 [V4L2_FIELD_ALTERNATE] = "alternate",
170 [V4L2_FIELD_INTERLACED_TB] = "interlaced-tb",
171 [V4L2_FIELD_INTERLACED_BT] = "interlaced-bt",
172};
173EXPORT_SYMBOL(v4l2_field_names);
174
175const char *v4l2_type_names[] = {
839aa56d 176 [0] = "0",
35ea11ff
HV		 177 [V4L2_BUF_TYPE_VIDEO_CAPTURE] = "vid-cap",
178 [V4L2_BUF_TYPE_VIDEO_OVERLAY] = "vid-overlay",
179 [V4L2_BUF_TYPE_VIDEO_OUTPUT] = "vid-out",
180 [V4L2_BUF_TYPE_VBI_CAPTURE] = "vbi-cap",
181 [V4L2_BUF_TYPE_VBI_OUTPUT] = "vbi-out",
182 [V4L2_BUF_TYPE_SLICED_VBI_CAPTURE] = "sliced-vbi-cap",
183 [V4L2_BUF_TYPE_SLICED_VBI_OUTPUT] = "sliced-vbi-out",
184 [V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY] = "vid-out-overlay",
f8f3914c
PO		 185 [V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE] = "vid-cap-mplane",
186 [V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE] = "vid-out-mplane",
6f3073b8 187 [V4L2_BUF_TYPE_SDR_CAPTURE] = "sdr-cap",
9effc72f 188 [V4L2_BUF_TYPE_SDR_OUTPUT] = "sdr-out",
fb9ffa6a 189 [V4L2_BUF_TYPE_META_CAPTURE] = "meta-cap",
72148d1a 190 [V4L2_BUF_TYPE_META_OUTPUT] = "meta-out",
35ea11ff
HV		 191};
192EXPORT_SYMBOL(v4l2_type_names);
193
194static const char *v4l2_memory_names[] = {
195 [V4L2_MEMORY_MMAP] = "mmap",
196 [V4L2_MEMORY_USERPTR] = "userptr",
197 [V4L2_MEMORY_OVERLAY] = "overlay",
051c7788 198 [V4L2_MEMORY_DMABUF] = "dmabuf",
35ea11ff
HV		 199};
200
d9246240 201#define prt_names(a, arr) (((unsigned)(a)) < ARRAY_SIZE(arr) ? arr[a] : "unknown")
35ea11ff
HV		 202
203/* ------------------------------------------------------------------ */
204/* debug help functions */
8ab75e3e 205
59076122
HV		 206static void v4l_print_querycap(const void *arg, bool write_only)
207{
208 const struct v4l2_capability *p = arg;
209
8720427c 210 pr_cont("driver=%.*s, card=%.*s, bus=%.*s, version=0x%08x, capabilities=0x%08x, device_caps=0x%08x\n",
27d5a87c
HV		 211 (int)sizeof(p->driver), p->driver,
212 (int)sizeof(p->card), p->card,
213 (int)sizeof(p->bus_info), p->bus_info,
59076122
HV		 214 p->version, p->capabilities, p->device_caps);
215}
216
217static void v4l_print_enuminput(const void *arg, bool write_only)
218{
219 const struct v4l2_input *p = arg;
220
8720427c 221 pr_cont("index=%u, name=%.*s, type=%u, audioset=0x%x, tuner=%u, std=0x%08Lx, status=0x%x, capabilities=0x%x\n",
27d5a87c
HV		 222 p->index, (int)sizeof(p->name), p->name, p->type, p->audioset,
223 p->tuner, (unsigned long long)p->std, p->status,
224 p->capabilities);
59076122
HV		 225}
226
227static void v4l_print_enumoutput(const void *arg, bool write_only)
228{
229 const struct v4l2_output *p = arg;
230
8720427c 231 pr_cont("index=%u, name=%.*s, type=%u, audioset=0x%x, modulator=%u, std=0x%08Lx, capabilities=0x%x\n",
27d5a87c
HV		 232 p->index, (int)sizeof(p->name), p->name, p->type, p->audioset,
233 p->modulator, (unsigned long long)p->std, p->capabilities);
59076122
HV		 234}
235
236static void v4l_print_audio(const void *arg, bool write_only)
237{
238 const struct v4l2_audio *p = arg;
239
240 if (write_only)
241 pr_cont("index=%u, mode=0x%x\n", p->index, p->mode);
242 else
27d5a87c
HV		 243 pr_cont("index=%u, name=%.*s, capability=0x%x, mode=0x%x\n",
244 p->index, (int)sizeof(p->name), p->name,
245 p->capability, p->mode);
59076122
HV		 246}
247
248static void v4l_print_audioout(const void *arg, bool write_only)
249{
250 const struct v4l2_audioout *p = arg;
251
252 if (write_only)
253 pr_cont("index=%u\n", p->index);
254 else
27d5a87c
HV		 255 pr_cont("index=%u, name=%.*s, capability=0x%x, mode=0x%x\n",
256 p->index, (int)sizeof(p->name), p->name,
257 p->capability, p->mode);
59076122
HV		 258}
259
be6c64e4
HV		 260static void v4l_print_fmtdesc(const void *arg, bool write_only)
261{
262 const struct v4l2_fmtdesc *p = arg;
263
e927e1e0 264 pr_cont("index=%u, type=%s, flags=0x%x, pixelformat=%p4cc, mbus_code=0x%04x, description='%.*s'\n",
be6c64e4 265 p->index, prt_names(p->type, v4l2_type_names),
e927e1e0 266 p->flags, &p->pixelformat, p->mbus_code,
27d5a87c 267 (int)sizeof(p->description), p->description);
be6c64e4
HV		 268}
269
270static void v4l_print_format(const void *arg, bool write_only)
271{
272 const struct v4l2_format *p = arg;
273 const struct v4l2_pix_format *pix;
274 const struct v4l2_pix_format_mplane *mp;
275 const struct v4l2_vbi_format *vbi;
276 const struct v4l2_sliced_vbi_format *sliced;
277 const struct v4l2_window *win;
fb9ffa6a 278 const struct v4l2_meta_format *meta;
24bb30c8 279 u32 pixelformat;
7fe9f01c 280 u32 planes;
be6c64e4
HV		 281 unsigned i;
282
283 pr_cont("type=%s", prt_names(p->type, v4l2_type_names));
284 switch (p->type) {
285 case V4L2_BUF_TYPE_VIDEO_CAPTURE:
286 case V4L2_BUF_TYPE_VIDEO_OUTPUT:
287 pix = &p->fmt.pix;
e927e1e0
SA		 288 pr_cont(", width=%u, height=%u, pixelformat=%p4cc, field=%s, bytesperline=%u, sizeimage=%u, colorspace=%d, flags=0x%x, ycbcr_enc=%u, quantization=%u, xfer_func=%u\n",
289 pix->width, pix->height, &pix->pixelformat,
be6c64e4
HV		 290 prt_names(pix->field, v4l2_field_names),
291 pix->bytesperline, pix->sizeimage,
736d96b5 292 pix->colorspace, pix->flags, pix->ycbcr_enc,
74fdcb2e 293 pix->quantization, pix->xfer_func);
be6c64e4
HV		 294 break;
295 case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE:
296 case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE:
297 mp = &p->fmt.pix_mp;
24bb30c8 298 pixelformat = mp->pixelformat;
e927e1e0 299 pr_cont(", width=%u, height=%u, format=%p4cc, field=%s, colorspace=%d, num_planes=%u, flags=0x%x, ycbcr_enc=%u, quantization=%u, xfer_func=%u\n",
24bb30c8 300 mp->width, mp->height, &pixelformat,
be6c64e4 301 prt_names(mp->field, v4l2_field_names),
736d96b5 302 mp->colorspace, mp->num_planes, mp->flags,
74fdcb2e 303 mp->ycbcr_enc, mp->quantization, mp->xfer_func);
7fe9f01c
SA		 304 planes = min_t(u32, mp->num_planes, VIDEO_MAX_PLANES);
305 for (i = 0; i < planes; i++)
be6c64e4
HV		 306 printk(KERN_DEBUG "plane %u: bytesperline=%u sizeimage=%u\n", i,
307 mp->plane_fmt[i].bytesperline,
308 mp->plane_fmt[i].sizeimage);
309 break;
310 case V4L2_BUF_TYPE_VIDEO_OVERLAY:
311 case V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY:
312 win = &p->fmt.win;
11340fbd
HV		 313 pr_cont(", (%d,%d)/%ux%u, field=%s, chromakey=0x%08x, global_alpha=0x%02x\n",
314 win->w.left, win->w.top, win->w.width, win->w.height,
be6c64e4 315 prt_names(win->field, v4l2_field_names),
99ba0703 316 win->chromakey, win->global_alpha);
be6c64e4
HV		 317 break;
318 case V4L2_BUF_TYPE_VBI_CAPTURE:
319 case V4L2_BUF_TYPE_VBI_OUTPUT:
320 vbi = &p->fmt.vbi;
e927e1e0 321 pr_cont(", sampling_rate=%u, offset=%u, samples_per_line=%u, sample_format=%p4cc, start=%u,%u, count=%u,%u\n",
be6c64e4 322 vbi->sampling_rate, vbi->offset,
e927e1e0 323 vbi->samples_per_line, &vbi->sample_format,
be6c64e4
HV		 324 vbi->start[0], vbi->start[1],
325 vbi->count[0], vbi->count[1]);
326 break;
327 case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE:
328 case V4L2_BUF_TYPE_SLICED_VBI_OUTPUT:
329 sliced = &p->fmt.sliced;
330 pr_cont(", service_set=0x%08x, io_size=%d\n",
331 sliced->service_set, sliced->io_size);
332 for (i = 0; i < 24; i++)
333 printk(KERN_DEBUG "line[%02u]=0x%04x, 0x%04x\n", i,
334 sliced->service_lines[0][i],
335 sliced->service_lines[1][i]);
336 break;
582c52cb 337 case V4L2_BUF_TYPE_SDR_CAPTURE:
9effc72f 338 case V4L2_BUF_TYPE_SDR_OUTPUT:
24bb30c8
SA		 339 pixelformat = p->fmt.sdr.pixelformat;
340 pr_cont(", pixelformat=%p4cc\n", &pixelformat);
582c52cb 341 break;
fb9ffa6a 342 case V4L2_BUF_TYPE_META_CAPTURE:
72148d1a 343 case V4L2_BUF_TYPE_META_OUTPUT:
fb9ffa6a 344 meta = &p->fmt.meta;
24bb30c8 345 pixelformat = meta->dataformat;
89345c2a
SA		 346 pr_cont(", dataformat=%p4cc, buffersize=%u, width=%u, height=%u, bytesperline=%u\n",
347 &pixelformat, meta->buffersize, meta->width,
348 meta->height, meta->bytesperline);
fb9ffa6a 349 break;
be6c64e4
HV		 350 }
351}
352
353static void v4l_print_framebuffer(const void *arg, bool write_only)
354{
355 const struct v4l2_framebuffer *p = arg;
356
e927e1e0
SA		 357 pr_cont("capability=0x%x, flags=0x%x, base=0x%p, width=%u, height=%u, pixelformat=%p4cc, bytesperline=%u, sizeimage=%u, colorspace=%d\n",
358 p->capability, p->flags, p->base, p->fmt.width, p->fmt.height,
359 &p->fmt.pixelformat, p->fmt.bytesperline, p->fmt.sizeimage,
360 p->fmt.colorspace);
be6c64e4
HV		 361}
362
e325b244
HV		 363static void v4l_print_buftype(const void *arg, bool write_only)
364{
365 pr_cont("type=%s\n", prt_names(*(u32 *)arg, v4l2_type_names));
366}
367
4b1e2e4d
HV		 368static void v4l_print_modulator(const void *arg, bool write_only)
369{
370 const struct v4l2_modulator *p = arg;
371
372 if (write_only)
560dde24 373 pr_cont("index=%u, txsubchans=0x%x\n", p->index, p->txsubchans);
4b1e2e4d 374 else
8720427c 375 pr_cont("index=%u, name=%.*s, capability=0x%x, rangelow=%u, rangehigh=%u, txsubchans=0x%x\n",
27d5a87c 376 p->index, (int)sizeof(p->name), p->name, p->capability,
4b1e2e4d
HV		 377 p->rangelow, p->rangehigh, p->txsubchans);
378}
379
380static void v4l_print_tuner(const void *arg, bool write_only)
381{
382 const struct v4l2_tuner *p = arg;
383
384 if (write_only)
385 pr_cont("index=%u, audmode=%u\n", p->index, p->audmode);
386 else
8720427c 387 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",
27d5a87c 388 p->index, (int)sizeof(p->name), p->name, p->type,
4b1e2e4d
HV		 389 p->capability, p->rangelow,
390 p->rangehigh, p->signal, p->afc,
391 p->rxsubchans, p->audmode);
392}
393
394static void v4l_print_frequency(const void *arg, bool write_only)
395{
396 const struct v4l2_frequency *p = arg;
397
398 pr_cont("tuner=%u, type=%u, frequency=%u\n",
399 p->tuner, p->type, p->frequency);
400}
401
402static void v4l_print_standard(const void *arg, bool write_only)
403{
404 const struct v4l2_standard *p = arg;
405
8720427c
MCC		 406 pr_cont("index=%u, id=0x%Lx, name=%.*s, fps=%u/%u, framelines=%u\n",
407 p->index,
27d5a87c 408 (unsigned long long)p->id, (int)sizeof(p->name), p->name,
4b1e2e4d
HV		 409 p->frameperiod.numerator,
410 p->frameperiod.denominator,
411 p->framelines);
412}
413
414static void v4l_print_std(const void *arg, bool write_only)
415{
416 pr_cont("std=0x%08Lx\n", *(const long long unsigned *)arg);
417}
418
419static void v4l_print_hw_freq_seek(const void *arg, bool write_only)
420{
421 const struct v4l2_hw_freq_seek *p = arg;
422
8720427c 423 pr_cont("tuner=%u, type=%u, seek_upward=%u, wrap_around=%u, spacing=%u, rangelow=%u, rangehigh=%u\n",
5e788317
HV		 424 p->tuner, p->type, p->seek_upward, p->wrap_around, p->spacing,
425 p->rangelow, p->rangehigh);
4b1e2e4d
HV		 426}
427
eb3728ed 428static void v4l_print_requestbuffers(const void *arg, bool write_only)
59076122 429{
eb3728ed
HV		 430 const struct v4l2_requestbuffers *p = arg;
431
432 pr_cont("count=%d, type=%s, memory=%s\n",
433 p->count,
434 prt_names(p->type, v4l2_type_names),
435 prt_names(p->memory, v4l2_memory_names));
59076122
HV		 436}
437
eb3728ed 438static void v4l_print_buffer(const void *arg, bool write_only)
35ea11ff 439{
eb3728ed
HV		 440 const struct v4l2_buffer *p = arg;
441 const struct v4l2_timecode *tc = &p->timecode;
442 const struct v4l2_plane *plane;
d14e6d76 443 int i;
35ea11ff 444
48e15418 445 pr_cont("%02d:%02d:%02d.%06ld index=%d, type=%s, request_fd=%d, flags=0x%08x, field=%s, sequence=%d, memory=%s",
577c89b0
AB		 446 (int)p->timestamp.tv_sec / 3600,
447 ((int)p->timestamp.tv_sec / 60) % 60,
448 ((int)p->timestamp.tv_sec % 60),
b045979d 449 (long)p->timestamp.tv_usec,
35ea11ff 450 p->index,
62fed26f 451 prt_names(p->type, v4l2_type_names), p->request_fd,
eb3728ed
HV		 452 p->flags, prt_names(p->field, v4l2_field_names),
453 p->sequence, prt_names(p->memory, v4l2_memory_names));
d14e6d76
PO		 454
455 if (V4L2_TYPE_IS_MULTIPLANAR(p->type) && p->m.planes) {
eb3728ed 456 pr_cont("\n");
d14e6d76
PO		 457 for (i = 0; i < p->length; ++i) {
458 plane = &p->m.planes[i];
eb3728ed 459 printk(KERN_DEBUG
8720427c 460 "plane %d: bytesused=%d, data_offset=0x%08x, offset/userptr=0x%lx, length=%d\n",
d14e6d76
PO		 461 i, plane->bytesused, plane->data_offset,
462 plane->m.userptr, plane->length);
463 }
464 } else {
560dde24 465 pr_cont(", bytesused=%d, offset/userptr=0x%lx, length=%d\n",
d14e6d76
PO		 466 p->bytesused, p->m.userptr, p->length);
467 }
468
8720427c 469 printk(KERN_DEBUG "timecode=%02d:%02d:%02d type=%d, flags=0x%08x, frames=%d, userbits=0x%08x\n",
35ea11ff
HV		 470 tc->hours, tc->minutes, tc->seconds,
471 tc->type, tc->flags, tc->frames, *(__u32 *)tc->userbits);
472}
473
b799d09a
TS		 474static void v4l_print_exportbuffer(const void *arg, bool write_only)
475{
476 const struct v4l2_exportbuffer *p = arg;
477
478 pr_cont("fd=%d, type=%s, index=%u, plane=%u, flags=0x%08x\n",
479 p->fd, prt_names(p->type, v4l2_type_names),
480 p->index, p->plane, p->flags);
481}
482
eb3728ed
HV		 483static void v4l_print_create_buffers(const void *arg, bool write_only)
484{
485 const struct v4l2_create_buffers *p = arg;
486
2b9e6786 487 pr_cont("index=%d, count=%d, memory=%s, capabilities=0x%08x, max num buffers=%u, ",
319c4bd4 488 p->index, p->count, prt_names(p->memory, v4l2_memory_names),
d055a76c 489 p->capabilities, p->max_num_buffers);
eb3728ed
HV		 490 v4l_print_format(&p->format, write_only);
491}
492
a3293a85
BG		 493static void v4l_print_remove_buffers(const void *arg, bool write_only)
494{
495 const struct v4l2_remove_buffers *p = arg;
496
497 pr_cont("type=%s, index=%u, count=%u\n",
498 prt_names(p->type, v4l2_type_names), p->index, p->count);
499}
500
eb3728ed
HV		 501static void v4l_print_streamparm(const void *arg, bool write_only)
502{
503 const struct v4l2_streamparm *p = arg;
504
505 pr_cont("type=%s", prt_names(p->type, v4l2_type_names));
506
507 if (p->type == V4L2_BUF_TYPE_VIDEO_CAPTURE ||
508 p->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) {
509 const struct v4l2_captureparm *c = &p->parm.capture;
510
8720427c 511 pr_cont(", capability=0x%x, capturemode=0x%x, timeperframe=%d/%d, extendedmode=%d, readbuffers=%d\n",
eb3728ed
HV		 512 c->capability, c->capturemode,
513 c->timeperframe.numerator, c->timeperframe.denominator,
514 c->extendedmode, c->readbuffers);
515 } else if (p->type == V4L2_BUF_TYPE_VIDEO_OUTPUT ||
516 p->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) {
517 const struct v4l2_outputparm *c = &p->parm.output;
518
8720427c 519 pr_cont(", capability=0x%x, outputmode=0x%x, timeperframe=%d/%d, extendedmode=%d, writebuffers=%d\n",
eb3728ed
HV		 520 c->capability, c->outputmode,
521 c->timeperframe.numerator, c->timeperframe.denominator,
522 c->extendedmode, c->writebuffers);
560dde24
HV		 523 } else {
524 pr_cont("\n");
eb3728ed
HV		 525 }
526}
527
efbceecd
HV		 528static void v4l_print_queryctrl(const void *arg, bool write_only)
529{
530 const struct v4l2_queryctrl *p = arg;
531
8720427c 532 pr_cont("id=0x%x, type=%d, name=%.*s, min/max=%d/%d, step=%d, default=%d, flags=0x%08x\n",
27d5a87c 533 p->id, p->type, (int)sizeof(p->name), p->name,
efbceecd
HV		 534 p->minimum, p->maximum,
535 p->step, p->default_value, p->flags);
536}
537
e6bee368
HV		 538static void v4l_print_query_ext_ctrl(const void *arg, bool write_only)
539{
540 const struct v4l2_query_ext_ctrl *p = arg;
541
8720427c 542 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",
e6bee368
HV		 543 p->id, p->type, (int)sizeof(p->name), p->name,
544 p->minimum, p->maximum,
545 p->step, p->default_value, p->flags,
546 p->elem_size, p->elems, p->nr_of_dims,
0176077a 547 p->dims[0], p->dims[1], p->dims[2], p->dims[3]);
e6bee368
HV		 548}
549
efbceecd
HV		 550static void v4l_print_querymenu(const void *arg, bool write_only)
551{
552 const struct v4l2_querymenu *p = arg;
553
554 pr_cont("id=0x%x, index=%d\n", p->id, p->index);
555}
556
557static void v4l_print_control(const void *arg, bool write_only)
558{
559 const struct v4l2_control *p = arg;
a69a7a33 560 const char *name = v4l2_ctrl_get_name(p->id);
efbceecd 561
a69a7a33
EG		 562 if (name)
563 pr_cont("name=%s, ", name);
efbceecd
HV		 564 pr_cont("id=0x%x, value=%d\n", p->id, p->value);
565}
566
567static void v4l_print_ext_controls(const void *arg, bool write_only)
568{
569 const struct v4l2_ext_controls *p = arg;
570 int i;
571
f23317ad
AC		 572 pr_cont("which=0x%x, count=%d, error_idx=%d, request_fd=%d",
573 p->which, p->count, p->error_idx, p->request_fd);
efbceecd 574 for (i = 0; i < p->count; i++) {
a69a7a33
EG		 575 unsigned int id = p->controls[i].id;
576 const char *name = v4l2_ctrl_get_name(id);
577
578 if (name)
579 pr_cont(", name=%s", name);
017ab36a 580 if (!p->controls[i].size)
a69a7a33 581 pr_cont(", id/val=0x%x/0x%x", id, p->controls[i].value);
efbceecd 582 else
a69a7a33 583 pr_cont(", id/size=0x%x/%u", id, p->controls[i].size);
efbceecd
HV		 584 }
585 pr_cont("\n");
586}
587
d84f2d94 588static void v4l_print_cropcap(const void *arg, bool write_only)
eb3728ed 589{
d84f2d94
HV		 590 const struct v4l2_cropcap *p = arg;
591
11340fbd 592 pr_cont("type=%s, bounds (%d,%d)/%ux%u, defrect (%d,%d)/%ux%u, pixelaspect %d/%d\n",
d84f2d94 593 prt_names(p->type, v4l2_type_names),
d84f2d94 594 p->bounds.left, p->bounds.top,
11340fbd 595 p->bounds.width, p->bounds.height,
d84f2d94 596 p->defrect.left, p->defrect.top,
11340fbd 597 p->defrect.width, p->defrect.height,
d84f2d94 598 p->pixelaspect.numerator, p->pixelaspect.denominator);
eb3728ed
HV		 599}
600
d84f2d94 601static void v4l_print_crop(const void *arg, bool write_only)
35ea11ff 602{
d84f2d94
HV		 603 const struct v4l2_crop *p = arg;
604
11340fbd 605 pr_cont("type=%s, crop=(%d,%d)/%ux%u\n",
d84f2d94 606 prt_names(p->type, v4l2_type_names),
11340fbd
HV		 607 p->c.left, p->c.top,
608 p->c.width, p->c.height);
d84f2d94
HV		 609}
610
611static void v4l_print_selection(const void *arg, bool write_only)
612{
613 const struct v4l2_selection *p = arg;
614
11340fbd 615 pr_cont("type=%s, target=%d, flags=0x%x, rect=(%d,%d)/%ux%u\n",
d84f2d94
HV		 616 prt_names(p->type, v4l2_type_names),
617 p->target, p->flags,
11340fbd 618 p->r.left, p->r.top, p->r.width, p->r.height);
d84f2d94
HV		 619}
620
d806f2df
HV		 621static void v4l_print_jpegcompression(const void *arg, bool write_only)
622{
623 const struct v4l2_jpegcompression *p = arg;
624
8720427c 625 pr_cont("quality=%d, APPn=%d, APP_len=%d, COM_len=%d, jpeg_markers=0x%x\n",
d806f2df
HV		 626 p->quality, p->APPn, p->APP_len,
627 p->COM_len, p->jpeg_markers);
628}
629
630static void v4l_print_enc_idx(const void *arg, bool write_only)
631{
632 const struct v4l2_enc_idx *p = arg;
633
634 pr_cont("entries=%d, entries_cap=%d\n",
635 p->entries, p->entries_cap);
636}
637
638static void v4l_print_encoder_cmd(const void *arg, bool write_only)
639{
640 const struct v4l2_encoder_cmd *p = arg;
641
642 pr_cont("cmd=%d, flags=0x%x\n",
643 p->cmd, p->flags);
644}
645
646static void v4l_print_decoder_cmd(const void *arg, bool write_only)
647{
648 const struct v4l2_decoder_cmd *p = arg;
649
650 pr_cont("cmd=%d, flags=0x%x\n", p->cmd, p->flags);
651
652 if (p->cmd == V4L2_DEC_CMD_START)
653 pr_info("speed=%d, format=%u\n",
654 p->start.speed, p->start.format);
655 else if (p->cmd == V4L2_DEC_CMD_STOP)
656 pr_info("pts=%llu\n", p->stop.pts);
657}
658
96b03d2a 659static void v4l_print_dbg_chip_info(const void *arg, bool write_only)
79b0c640 660{
96b03d2a 661 const struct v4l2_dbg_chip_info *p = arg;
79b0c640
HV		 662
663 pr_cont("type=%u, ", p->match.type);
3eef2510 664 if (p->match.type == V4L2_CHIP_MATCH_I2C_DRIVER)
79b0c640
HV		 665 pr_cont("name=%.*s, ",
666 (int)sizeof(p->match.name), p->match.name);
667 else
668 pr_cont("addr=%u, ", p->match.addr);
669 pr_cont("name=%.*s\n", (int)sizeof(p->name), p->name);
670}
671
f16f77b0
HV		 672static void v4l_print_dbg_register(const void *arg, bool write_only)
673{
674 const struct v4l2_dbg_register *p = arg;
675
676 pr_cont("type=%u, ", p->match.type);
3eef2510 677 if (p->match.type == V4L2_CHIP_MATCH_I2C_DRIVER)
27d5a87c
HV		 678 pr_cont("name=%.*s, ",
679 (int)sizeof(p->match.name), p->match.name);
f16f77b0
HV		 680 else
681 pr_cont("addr=%u, ", p->match.addr);
682 pr_cont("reg=0x%llx, val=0x%llx\n",
683 p->reg, p->val);
684}
685
efc626b0 686static void v4l_print_dv_timings(const void *arg, bool write_only)
5d7758ee 687{
efc626b0
HV		 688 const struct v4l2_dv_timings *p = arg;
689
5d7758ee
HV		 690 switch (p->type) {
691 case V4L2_DV_BT_656_1120:
8720427c 692 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",
5d7758ee
HV		 693 p->bt.interlaced, p->bt.pixelclock,
694 p->bt.width, p->bt.height,
695 p->bt.polarities, p->bt.hfrontporch,
696 p->bt.hsync, p->bt.hbackporch,
697 p->bt.vfrontporch, p->bt.vsync,
698 p->bt.vbackporch, p->bt.il_vfrontporch,
699 p->bt.il_vsync, p->bt.il_vbackporch,
700 p->bt.standards, p->bt.flags);
701 break;
702 default:
efc626b0 703 pr_cont("type=%d\n", p->type);
5d7758ee
HV		 704 break;
705 }
706}
707
efc626b0
HV		 708static void v4l_print_enum_dv_timings(const void *arg, bool write_only)
709{
710 const struct v4l2_enum_dv_timings *p = arg;
711
712 pr_cont("index=%u, ", p->index);
713 v4l_print_dv_timings(&p->timings, write_only);
714}
715
716static void v4l_print_dv_timings_cap(const void *arg, bool write_only)
717{
718 const struct v4l2_dv_timings_cap *p = arg;
719
720 switch (p->type) {
721 case V4L2_DV_BT_656_1120:
8720427c 722 pr_cont("type=bt-656/1120, width=%u-%u, height=%u-%u, pixelclock=%llu-%llu, standards=0x%x, capabilities=0x%x\n",
efc626b0
HV		 723 p->bt.min_width, p->bt.max_width,
724 p->bt.min_height, p->bt.max_height,
725 p->bt.min_pixelclock, p->bt.max_pixelclock,
726 p->bt.standards, p->bt.capabilities);
727 break;
728 default:
729 pr_cont("type=%u\n", p->type);
730 break;
731 }
732}
733
458aa4a6
HV		 734static void v4l_print_frmsizeenum(const void *arg, bool write_only)
735{
736 const struct v4l2_frmsizeenum *p = arg;
737
e927e1e0
SA		 738 pr_cont("index=%u, pixelformat=%p4cc, type=%u",
739 p->index, &p->pixel_format, p->type);
458aa4a6
HV		 740 switch (p->type) {
741 case V4L2_FRMSIZE_TYPE_DISCRETE:
560dde24 742 pr_cont(", wxh=%ux%u\n",
458aa4a6
HV		 743 p->discrete.width, p->discrete.height);
744 break;
745 case V4L2_FRMSIZE_TYPE_STEPWISE:
560dde24 746 pr_cont(", min=%ux%u, max=%ux%u, step=%ux%u\n",
2489477e
RR		 747 p->stepwise.min_width,
748 p->stepwise.min_height,
749 p->stepwise.max_width,
750 p->stepwise.max_height,
751 p->stepwise.step_width,
752 p->stepwise.step_height);
458aa4a6
HV		 753 break;
754 case V4L2_FRMSIZE_TYPE_CONTINUOUS:
458aa4a6
HV		 755 default:
756 pr_cont("\n");
757 break;
758 }
759}
760
761static void v4l_print_frmivalenum(const void *arg, bool write_only)
762{
763 const struct v4l2_frmivalenum *p = arg;
764
e927e1e0
SA		 765 pr_cont("index=%u, pixelformat=%p4cc, wxh=%ux%u, type=%u",
766 p->index, &p->pixel_format, p->width, p->height, p->type);
458aa4a6
HV		 767 switch (p->type) {
768 case V4L2_FRMIVAL_TYPE_DISCRETE:
560dde24 769 pr_cont(", fps=%d/%d\n",
458aa4a6
HV		 770 p->discrete.numerator,
771 p->discrete.denominator);
772 break;
773 case V4L2_FRMIVAL_TYPE_STEPWISE:
560dde24 774 pr_cont(", min=%d/%d, max=%d/%d, step=%d/%d\n",
458aa4a6
HV		 775 p->stepwise.min.numerator,
776 p->stepwise.min.denominator,
777 p->stepwise.max.numerator,
778 p->stepwise.max.denominator,
779 p->stepwise.step.numerator,
780 p->stepwise.step.denominator);
781 break;
782 case V4L2_FRMIVAL_TYPE_CONTINUOUS:
458aa4a6
HV		 783 default:
784 pr_cont("\n");
785 break;
786 }
787}
788
789static void v4l_print_event(const void *arg, bool write_only)
790{
791 const struct v4l2_event *p = arg;
792 const struct v4l2_event_ctrl *c;
793
1a6c0b36 794 pr_cont("type=0x%x, pending=%u, sequence=%u, id=%u, timestamp=%llu.%9.9llu\n",
458aa4a6
HV		 795 p->type, p->pending, p->sequence, p->id,
796 p->timestamp.tv_sec, p->timestamp.tv_nsec);
797 switch (p->type) {
798 case V4L2_EVENT_VSYNC:
799 printk(KERN_DEBUG "field=%s\n",
800 prt_names(p->u.vsync.field, v4l2_field_names));
801 break;
802 case V4L2_EVENT_CTRL:
803 c = &p->u.ctrl;
804 printk(KERN_DEBUG "changes=0x%x, type=%u, ",
805 c->changes, c->type);
806 if (c->type == V4L2_CTRL_TYPE_INTEGER64)
807 pr_cont("value64=%lld, ", c->value64);
808 else
809 pr_cont("value=%d, ", c->value);
8720427c 810 pr_cont("flags=0x%x, minimum=%d, maximum=%d, step=%d, default_value=%d\n",
458aa4a6
HV		 811 c->flags, c->minimum, c->maximum,
812 c->step, c->default_value);
813 break;
814 case V4L2_EVENT_FRAME_SYNC:
815 pr_cont("frame_sequence=%u\n",
816 p->u.frame_sync.frame_sequence);
817 break;
818 }
819}
820
821static void v4l_print_event_subscription(const void *arg, bool write_only)
822{
823 const struct v4l2_event_subscription *p = arg;
824
825 pr_cont("type=0x%x, id=0x%x, flags=0x%x\n",
826 p->type, p->id, p->flags);
827}
828
829static void v4l_print_sliced_vbi_cap(const void *arg, bool write_only)
830{
831 const struct v4l2_sliced_vbi_cap *p = arg;
832 int i;
833
834 pr_cont("type=%s, service_set=0x%08x\n",
835 prt_names(p->type, v4l2_type_names), p->service_set);
836 for (i = 0; i < 24; i++)
837 printk(KERN_DEBUG "line[%02u]=0x%04x, 0x%04x\n", i,
838 p->service_lines[0][i],
839 p->service_lines[1][i]);
840}
841
82b655bf
HV		 842static void v4l_print_freq_band(const void *arg, bool write_only)
843{
844 const struct v4l2_frequency_band *p = arg;
845
8720427c 846 pr_cont("tuner=%u, type=%u, index=%u, capability=0x%x, rangelow=%u, rangehigh=%u, modulation=0x%x\n",
82b655bf
HV		 847 p->tuner, p->type, p->index,
848 p->capability, p->rangelow,
849 p->rangehigh, p->modulation);
850}
851
dd519bb3
HV		 852static void v4l_print_edid(const void *arg, bool write_only)
853{
854 const struct v4l2_edid *p = arg;
855
856 pr_cont("pad=%u, start_block=%u, blocks=%u\n",
857 p->pad, p->start_block, p->blocks);
858}
859
efc626b0
HV		 860static void v4l_print_u32(const void *arg, bool write_only)
861{
862 pr_cont("value=%u\n", *(const u32 *)arg);
863}
864
865static void v4l_print_newline(const void *arg, bool write_only)
866{
867 pr_cont("\n");
868}
869
f18d8e07
HV		 870static void v4l_print_default(const void *arg, bool write_only)
871{
872 pr_cont("driver-specific ioctl\n");
873}
874
861f92cb 875static bool check_ext_ctrls(struct v4l2_ext_controls *c, unsigned long ioctl)
35ea11ff
HV		 876{
877 __u32 i;
878
879 /* zero the reserved fields */
f23317ad 880 c->reserved[0] = 0;
6b5a9492 881 for (i = 0; i < c->count; i++)
35ea11ff 882 c->controls[i].reserved2[0] = 0;
6b5a9492 883
861f92cb
RR		 884 switch (c->which) {
885 case V4L2_CID_PRIVATE_BASE:
886 /*
887 * V4L2_CID_PRIVATE_BASE cannot be used as control class
888 * when using extended controls.
889 * Only when passed in through VIDIOC_G_CTRL and VIDIOC_S_CTRL
890 * is it allowed for backwards compatibility.
891 */
892 if (ioctl == VIDIOC_G_CTRL || ioctl == VIDIOC_S_CTRL)
893 return false;
894 break;
895 case V4L2_CTRL_WHICH_DEF_VAL:
a5bd42aa
HV		 896 case V4L2_CTRL_WHICH_MIN_VAL:
897 case V4L2_CTRL_WHICH_MAX_VAL:
898 /* Default, minimum or maximum value cannot be changed */
861f92cb
RR		 899 if (ioctl == VIDIOC_S_EXT_CTRLS ||
900 ioctl == VIDIOC_TRY_EXT_CTRLS) {
901 c->error_idx = c->count;
902 return false;
903 }
904 return true;
905 case V4L2_CTRL_WHICH_CUR_VAL:
906 return true;
907 case V4L2_CTRL_WHICH_REQUEST_VAL:
908 c->error_idx = c->count;
909 return false;
910 }
911
35ea11ff
HV		 912 /* Check that all controls are from the same control class. */
913 for (i = 0; i < c->count; i++) {
0f8017be 914 if (V4L2_CTRL_ID2WHICH(c->controls[i].id) != c->which) {
861f92cb
RR		 915 c->error_idx = ioctl == VIDIOC_TRY_EXT_CTRLS ? i :
916 c->count;
917 return false;
35ea11ff
HV		 918 }
919 }
861f92cb 920 return true;
35ea11ff
HV		 921}
922
4b20259f 923static int check_fmt(struct file *file, enum v4l2_buf_type type)
35ea11ff 924{
96f49c1a
VB		 925 const u32 vid_caps = V4L2_CAP_VIDEO_CAPTURE |
926 V4L2_CAP_VIDEO_CAPTURE_MPLANE |
927 V4L2_CAP_VIDEO_OUTPUT |
928 V4L2_CAP_VIDEO_OUTPUT_MPLANE |
929 V4L2_CAP_VIDEO_M2M | V4L2_CAP_VIDEO_M2M_MPLANE;
930 const u32 meta_caps = V4L2_CAP_META_CAPTURE |
931 V4L2_CAP_META_OUTPUT;
4b20259f
HV		 932 struct video_device *vfd = video_devdata(file);
933 const struct v4l2_ioctl_ops *ops = vfd->ioctl_ops;
238e4a5b 934 bool is_vid = vfd->vfl_type == VFL_TYPE_VIDEO &&
96f49c1a 935 (vfd->device_caps & vid_caps);
4b20259f 936 bool is_vbi = vfd->vfl_type == VFL_TYPE_VBI;
582c52cb 937 bool is_sdr = vfd->vfl_type == VFL_TYPE_SDR;
b2fe22d0 938 bool is_tch = vfd->vfl_type == VFL_TYPE_TOUCH;
238e4a5b 939 bool is_meta = vfd->vfl_type == VFL_TYPE_VIDEO &&
96f49c1a 940 (vfd->device_caps & meta_caps);
4b20259f
HV		 941 bool is_rx = vfd->vfl_dir != VFL_DIR_TX;
942 bool is_tx = vfd->vfl_dir != VFL_DIR_RX;
943
a399810c
HV		 944 if (ops == NULL)
945 return -EINVAL;
946
35ea11ff
HV		 947 switch (type) {
948 case V4L2_BUF_TYPE_VIDEO_CAPTURE:
b2fe22d0 949 if ((is_vid || is_tch) && is_rx &&
4b20259f 950 (ops->vidioc_g_fmt_vid_cap || ops->vidioc_g_fmt_vid_cap_mplane))
d14e6d76
PO		 951 return 0;
952 break;
953 case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE:
095c21d3 954 if ((is_vid || is_tch) && is_rx && ops->vidioc_g_fmt_vid_cap_mplane)
35ea11ff
HV		 955 return 0;
956 break;
957 case V4L2_BUF_TYPE_VIDEO_OVERLAY:
4b20259f 958 if (is_vid && is_rx && ops->vidioc_g_fmt_vid_overlay)
35ea11ff
HV		 959 return 0;
960 break;
961 case V4L2_BUF_TYPE_VIDEO_OUTPUT:
4b20259f
HV		 962 if (is_vid && is_tx &&
963 (ops->vidioc_g_fmt_vid_out || ops->vidioc_g_fmt_vid_out_mplane))
d14e6d76
PO		 964 return 0;
965 break;
966 case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE:
4b20259f 967 if (is_vid && is_tx && ops->vidioc_g_fmt_vid_out_mplane)
35ea11ff
HV		 968 return 0;
969 break;
970 case V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY:
4b20259f 971 if (is_vid && is_tx && ops->vidioc_g_fmt_vid_out_overlay)
35ea11ff
HV		 972 return 0;
973 break;
974 case V4L2_BUF_TYPE_VBI_CAPTURE:
4b20259f 975 if (is_vbi && is_rx && ops->vidioc_g_fmt_vbi_cap)
35ea11ff
HV		 976 return 0;
977 break;
978 case V4L2_BUF_TYPE_VBI_OUTPUT:
4b20259f 979 if (is_vbi && is_tx && ops->vidioc_g_fmt_vbi_out)
35ea11ff
HV		 980 return 0;
981 break;
982 case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE:
4b20259f 983 if (is_vbi && is_rx && ops->vidioc_g_fmt_sliced_vbi_cap)
35ea11ff
HV		 984 return 0;
985 break;
986 case V4L2_BUF_TYPE_SLICED_VBI_OUTPUT:
4b20259f 987 if (is_vbi && is_tx && ops->vidioc_g_fmt_sliced_vbi_out)
35ea11ff
HV		 988 return 0;
989 break;
582c52cb
AP		 990 case V4L2_BUF_TYPE_SDR_CAPTURE:
991 if (is_sdr && is_rx && ops->vidioc_g_fmt_sdr_cap)
992 return 0;
993 break;
9effc72f
AP		 994 case V4L2_BUF_TYPE_SDR_OUTPUT:
995 if (is_sdr && is_tx && ops->vidioc_g_fmt_sdr_out)
996 return 0;
997 break;
fb9ffa6a 998 case V4L2_BUF_TYPE_META_CAPTURE:
96f49c1a 999 if (is_meta && is_rx && ops->vidioc_g_fmt_meta_cap)
fb9ffa6a
LP		 1000 return 0;
1001 break;
72148d1a 1002 case V4L2_BUF_TYPE_META_OUTPUT:
96f49c1a 1003 if (is_meta && is_tx && ops->vidioc_g_fmt_meta_out)
72148d1a
SA		 1004 return 0;
1005 break;
633c98e5 1006 default:
35ea11ff
HV		 1007 break;
1008 }
1009 return -EINVAL;
1010}
1011
48e93b0c
LP		 1012static void v4l_sanitize_colorspace(u32 pixelformat, u32 *colorspace,
1013 u32 *encoding, u32 *quantization,
1014 u32 *xfer_func)
1015{
1016 bool is_hsv = pixelformat == V4L2_PIX_FMT_HSV24 ||
1017 pixelformat == V4L2_PIX_FMT_HSV32;
1018
1019 if (!v4l2_is_colorspace_valid(*colorspace)) {
1020 *colorspace = V4L2_COLORSPACE_DEFAULT;
1021 *encoding = V4L2_YCBCR_ENC_DEFAULT;
1022 *quantization = V4L2_QUANTIZATION_DEFAULT;
1023 *xfer_func = V4L2_XFER_FUNC_DEFAULT;
1024 }
1025
1026 if ((!is_hsv && !v4l2_is_ycbcr_enc_valid(*encoding)) ||
1027 (is_hsv && !v4l2_is_hsv_enc_valid(*encoding)))
1028 *encoding = V4L2_YCBCR_ENC_DEFAULT;
1029
1030 if (!v4l2_is_quant_valid(*quantization))
1031 *quantization = V4L2_QUANTIZATION_DEFAULT;
1032
1033 if (!v4l2_is_xfer_func_valid(*xfer_func))
1034 *xfer_func = V4L2_XFER_FUNC_DEFAULT;
1035}
1036
d52e2381
LP		 1037static void v4l_sanitize_format(struct v4l2_format *fmt)
1038{
1039 unsigned int offset;
1040
14c8e80e
EG		 1041 /* Make sure num_planes is not bogus */
1042 if (fmt->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE ||
1043 fmt->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE)
1044 fmt->fmt.pix_mp.num_planes = min_t(u32, fmt->fmt.pix_mp.num_planes,
1045 VIDEO_MAX_PLANES);
1046
d52e2381
LP		 1047 /*
1048 * The v4l2_pix_format structure has been extended with fields that were
1049 * not previously required to be set to zero by applications. The priv
fd3ed970 1050 * field, when set to a magic value, indicates that the extended fields
d52e2381
LP		 1051 * are valid. Otherwise they will contain undefined values. To simplify
1052 * the API towards drivers zero the extended fields and set the priv
1053 * field to the magic value when the extended pixel format structure
1054 * isn't used by applications.
1055 */
48e93b0c
LP		 1056 if (fmt->type == V4L2_BUF_TYPE_VIDEO_CAPTURE ||
1057 fmt->type == V4L2_BUF_TYPE_VIDEO_OUTPUT) {
1058 if (fmt->fmt.pix.priv != V4L2_PIX_FMT_PRIV_MAGIC) {
1059 fmt->fmt.pix.priv = V4L2_PIX_FMT_PRIV_MAGIC;
1060
1061 offset = offsetof(struct v4l2_pix_format, priv)
1062 + sizeof(fmt->fmt.pix.priv);
1063 memset(((void *)&fmt->fmt.pix) + offset, 0,
1064 sizeof(fmt->fmt.pix) - offset);
1065 }
1066 }
d52e2381 1067
48e93b0c
LP		 1068 /* Replace invalid colorspace values with defaults. */
1069 if (fmt->type == V4L2_BUF_TYPE_VIDEO_CAPTURE ||
1070 fmt->type == V4L2_BUF_TYPE_VIDEO_OUTPUT) {
1071 v4l_sanitize_colorspace(fmt->fmt.pix.pixelformat,
1072 &fmt->fmt.pix.colorspace,
1073 &fmt->fmt.pix.ycbcr_enc,
1074 &fmt->fmt.pix.quantization,
1075 &fmt->fmt.pix.xfer_func);
1076 } else if (fmt->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE ||
1077 fmt->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) {
1078 u32 ycbcr_enc = fmt->fmt.pix_mp.ycbcr_enc;
1079 u32 quantization = fmt->fmt.pix_mp.quantization;
1080 u32 xfer_func = fmt->fmt.pix_mp.xfer_func;
1081
1082 v4l_sanitize_colorspace(fmt->fmt.pix_mp.pixelformat,
1083 &fmt->fmt.pix_mp.colorspace, &ycbcr_enc,
1084 &quantization, &xfer_func);
1085
1086 fmt->fmt.pix_mp.ycbcr_enc = ycbcr_enc;
1087 fmt->fmt.pix_mp.quantization = quantization;
1088 fmt->fmt.pix_mp.xfer_func = xfer_func;
1089 }
d52e2381
LP		 1090}
1091
59076122
HV		 1092static int v4l_querycap(const struct v4l2_ioctl_ops *ops,
1093 struct file *file, void *fh, void *arg)
1094{
1095 struct v4l2_capability *cap = (struct v4l2_capability *)arg;
7bbe7813 1096 struct video_device *vfd = video_devdata(file);
d52e2381 1097 int ret;
59076122
HV		 1098
1099 cap->version = LINUX_VERSION_CODE;
7bbe7813
HV		 1100 cap->device_caps = vfd->device_caps;
1101 cap->capabilities = vfd->device_caps | V4L2_CAP_DEVICE_CAPS;
d52e2381 1102
f2d8b691
SA		 1103 media_set_bus_info(cap->bus_info, sizeof(cap->bus_info),
1104 vfd->dev_parent);
1105
d52e2381
LP		 1106 ret = ops->vidioc_querycap(file, fh, cap);
1107
454a4e72 1108 /*
3c135050
HV		 1109 * Drivers must not change device_caps, so check for this and
1110 * warn if this happened.
1111 */
1112 WARN_ON(cap->device_caps != vfd->device_caps);
1113 /*
1114 * Check that capabilities is a superset of
1115 * vfd->device_caps | V4L2_CAP_DEVICE_CAPS
454a4e72 1116 */
3c135050
HV		 1117 WARN_ON((cap->capabilities &
1118 (vfd->device_caps | V4L2_CAP_DEVICE_CAPS)) !=
1119 (vfd->device_caps | V4L2_CAP_DEVICE_CAPS));
1120 cap->capabilities |= V4L2_CAP_EXT_PIX_FORMAT;
796a2bd2 1121 cap->device_caps |= V4L2_CAP_EXT_PIX_FORMAT;
d52e2381
LP		 1122
1123 return ret;
59076122
HV		 1124}
1125
f645e625
NS		 1126static int v4l_g_input(const struct v4l2_ioctl_ops *ops,
1127 struct file *file, void *fh, void *arg)
1128{
1129 struct video_device *vfd = video_devdata(file);
1130
1131 if (vfd->device_caps & V4L2_CAP_IO_MC) {
1132 *(int *)arg = 0;
1133 return 0;
1134 }
1135
1136 return ops->vidioc_g_input(file, fh, arg);
1137}
1138
1139static int v4l_g_output(const struct v4l2_ioctl_ops *ops,
1140 struct file *file, void *fh, void *arg)
1141{
1142 struct video_device *vfd = video_devdata(file);
1143
1144 if (vfd->device_caps & V4L2_CAP_IO_MC) {
1145 *(int *)arg = 0;
1146 return 0;
1147 }
1148
1149 return ops->vidioc_g_output(file, fh, arg);
1150}
1151
59076122
HV		 1152static int v4l_s_input(const struct v4l2_ioctl_ops *ops,
1153 struct file *file, void *fh, void *arg)
1154{
77fa4e07
SK		 1155 struct video_device *vfd = video_devdata(file);
1156 int ret;
1157
1158 ret = v4l_enable_media_source(vfd);
1159 if (ret)
1160 return ret;
f645e625
NS		 1161
1162 if (vfd->device_caps & V4L2_CAP_IO_MC)
1163 return *(int *)arg ? -EINVAL : 0;
1164
59076122
HV		 1165 return ops->vidioc_s_input(file, fh, *(unsigned int *)arg);
1166}
1167
1168static int v4l_s_output(const struct v4l2_ioctl_ops *ops,
1169 struct file *file, void *fh, void *arg)
1170{
f645e625
NS		 1171 struct video_device *vfd = video_devdata(file);
1172
1173 if (vfd->device_caps & V4L2_CAP_IO_MC)
1174 return *(int *)arg ? -EINVAL : 0;
1175
59076122
HV		 1176 return ops->vidioc_s_output(file, fh, *(unsigned int *)arg);
1177}
1178
d0547cba
HV		 1179static int v4l_g_priority(const struct v4l2_ioctl_ops *ops,
1180 struct file *file, void *fh, void *arg)
1181{
1182 struct video_device *vfd;
1183 u32 *p = arg;
1184
d0547cba 1185 vfd = video_devdata(file);
59b702ea 1186 *p = v4l2_prio_max(vfd->prio);
d0547cba
HV		 1187 return 0;
1188}
1189
1190static int v4l_s_priority(const struct v4l2_ioctl_ops *ops,
1191 struct file *file, void *fh, void *arg)
1192{
1193 struct video_device *vfd;
1194 struct v4l2_fh *vfh;
1195 u32 *p = arg;
1196
d0547cba 1197 vfd = video_devdata(file);
2438e78a
HV		 1198 if (!test_bit(V4L2_FL_USES_V4L2_FH, &vfd->flags))
1199 return -ENOTTY;
d0547cba 1200 vfh = file->private_data;
59b702ea 1201 return v4l2_prio_change(vfd->prio, &vfh->prio, *p);
d0547cba
HV		 1202}
1203
59076122
HV		 1204static int v4l_enuminput(const struct v4l2_ioctl_ops *ops,
1205 struct file *file, void *fh, void *arg)
1206{
73f35418 1207 struct video_device *vfd = video_devdata(file);
59076122
HV		 1208 struct v4l2_input *p = arg;
1209
1210 /*
02fa6282 1211 * We set the flags for CAP_DV_TIMINGS &
59076122
HV		 1212 * CAP_STD here based on ioctl handler provided by the
1213 * driver. If the driver doesn't support these
1214 * for a specific input, it must override these flags.
1215 */
73f35418 1216 if (is_valid_ioctl(vfd, VIDIOC_S_STD))
59076122 1217 p->capabilities |= V4L2_IN_CAP_STD;
59076122 1218
f645e625
NS		 1219 if (vfd->device_caps & V4L2_CAP_IO_MC) {
1220 if (p->index)
1221 return -EINVAL;
1222 strscpy(p->name, vfd->name, sizeof(p->name));
1223 p->type = V4L2_INPUT_TYPE_CAMERA;
1224 return 0;
1225 }
1226
59076122
HV		 1227 return ops->vidioc_enum_input(file, fh, p);
1228}
1229
1230static int v4l_enumoutput(const struct v4l2_ioctl_ops *ops,
1231 struct file *file, void *fh, void *arg)
1232{
73f35418 1233 struct video_device *vfd = video_devdata(file);
59076122
HV		 1234 struct v4l2_output *p = arg;
1235
1236 /*
02fa6282 1237 * We set the flags for CAP_DV_TIMINGS &
59076122
HV		 1238 * CAP_STD here based on ioctl handler provided by the
1239 * driver. If the driver doesn't support these
1240 * for a specific output, it must override these flags.
1241 */
73f35418 1242 if (is_valid_ioctl(vfd, VIDIOC_S_STD))
59076122 1243 p->capabilities |= V4L2_OUT_CAP_STD;
59076122 1244
f645e625
NS		 1245 if (vfd->device_caps & V4L2_CAP_IO_MC) {
1246 if (p->index)
1247 return -EINVAL;
1248 strscpy(p->name, vfd->name, sizeof(p->name));
1249 p->type = V4L2_OUTPUT_TYPE_ANALOG;
1250 return 0;
1251 }
1252
59076122
HV		 1253 return ops->vidioc_enum_output(file, fh, p);
1254}
1255
ba300204
HV		 1256static void v4l_fill_fmtdesc(struct v4l2_fmtdesc *fmt)
1257{
1258 const unsigned sz = sizeof(fmt->description);
1259 const char *descr = NULL;
1260 u32 flags = 0;
1261
1262 /*
1263 * We depart from the normal coding style here since the descriptions
1264 * should be aligned so it is easy to see which descriptions will be
1265 * longer than 31 characters (the max length for a description).
1266 * And frankly, this is easier to read anyway.
1267 *
1268 * Note that gcc will use O(log N) comparisons to find the right case.
1269 */
1270 switch (fmt->pixelformat) {
1271 /* Max description length mask: descr = "0123456789012345678901234567890" */
1272 case V4L2_PIX_FMT_RGB332: descr = "8-bit RGB 3-3-2"; break;
1273 case V4L2_PIX_FMT_RGB444: descr = "16-bit A/XRGB 4-4-4-4"; break;
1274 case V4L2_PIX_FMT_ARGB444: descr = "16-bit ARGB 4-4-4-4"; break;
1275 case V4L2_PIX_FMT_XRGB444: descr = "16-bit XRGB 4-4-4-4"; break;
4747bd0f
HV		 1276 case V4L2_PIX_FMT_RGBA444: descr = "16-bit RGBA 4-4-4-4"; break;
1277 case V4L2_PIX_FMT_RGBX444: descr = "16-bit RGBX 4-4-4-4"; break;
1278 case V4L2_PIX_FMT_ABGR444: descr = "16-bit ABGR 4-4-4-4"; break;
1279 case V4L2_PIX_FMT_XBGR444: descr = "16-bit XBGR 4-4-4-4"; break;
1280 case V4L2_PIX_FMT_BGRA444: descr = "16-bit BGRA 4-4-4-4"; break;
1281 case V4L2_PIX_FMT_BGRX444: descr = "16-bit BGRX 4-4-4-4"; break;
ba300204
HV		 1282 case V4L2_PIX_FMT_RGB555: descr = "16-bit A/XRGB 1-5-5-5"; break;
1283 case V4L2_PIX_FMT_ARGB555: descr = "16-bit ARGB 1-5-5-5"; break;
1284 case V4L2_PIX_FMT_XRGB555: descr = "16-bit XRGB 1-5-5-5"; break;
4747bd0f
HV		 1285 case V4L2_PIX_FMT_ABGR555: descr = "16-bit ABGR 1-5-5-5"; break;
1286 case V4L2_PIX_FMT_XBGR555: descr = "16-bit XBGR 1-5-5-5"; break;
1287 case V4L2_PIX_FMT_RGBA555: descr = "16-bit RGBA 5-5-5-1"; break;
1288 case V4L2_PIX_FMT_RGBX555: descr = "16-bit RGBX 5-5-5-1"; break;
1289 case V4L2_PIX_FMT_BGRA555: descr = "16-bit BGRA 5-5-5-1"; break;
1290 case V4L2_PIX_FMT_BGRX555: descr = "16-bit BGRX 5-5-5-1"; break;
ba300204
HV		 1291 case V4L2_PIX_FMT_RGB565: descr = "16-bit RGB 5-6-5"; break;
1292 case V4L2_PIX_FMT_RGB555X: descr = "16-bit A/XRGB 1-5-5-5 BE"; break;
1293 case V4L2_PIX_FMT_ARGB555X: descr = "16-bit ARGB 1-5-5-5 BE"; break;
1294 case V4L2_PIX_FMT_XRGB555X: descr = "16-bit XRGB 1-5-5-5 BE"; break;
1295 case V4L2_PIX_FMT_RGB565X: descr = "16-bit RGB 5-6-5 BE"; break;
1296 case V4L2_PIX_FMT_BGR666: descr = "18-bit BGRX 6-6-6-14"; break;
1297 case V4L2_PIX_FMT_BGR24: descr = "24-bit BGR 8-8-8"; break;
1298 case V4L2_PIX_FMT_RGB24: descr = "24-bit RGB 8-8-8"; break;
1299 case V4L2_PIX_FMT_BGR32: descr = "32-bit BGRA/X 8-8-8-8"; break;
1300 case V4L2_PIX_FMT_ABGR32: descr = "32-bit BGRA 8-8-8-8"; break;
1301 case V4L2_PIX_FMT_XBGR32: descr = "32-bit BGRX 8-8-8-8"; break;
1302 case V4L2_PIX_FMT_RGB32: descr = "32-bit A/XRGB 8-8-8-8"; break;
1303 case V4L2_PIX_FMT_ARGB32: descr = "32-bit ARGB 8-8-8-8"; break;
1304 case V4L2_PIX_FMT_XRGB32: descr = "32-bit XRGB 8-8-8-8"; break;
4747bd0f
HV		 1305 case V4L2_PIX_FMT_BGRA32: descr = "32-bit ABGR 8-8-8-8"; break;
1306 case V4L2_PIX_FMT_BGRX32: descr = "32-bit XBGR 8-8-8-8"; break;
1307 case V4L2_PIX_FMT_RGBA32: descr = "32-bit RGBA 8-8-8-8"; break;
1308 case V4L2_PIX_FMT_RGBX32: descr = "32-bit RGBX 8-8-8-8"; break;
8d0e3fc6
TV		 1309 case V4L2_PIX_FMT_RGBX1010102: descr = "32-bit RGBX 10-10-10-2"; break;
1310 case V4L2_PIX_FMT_RGBA1010102: descr = "32-bit RGBA 10-10-10-2"; break;
1311 case V4L2_PIX_FMT_ARGB2101010: descr = "32-bit ARGB 2-10-10-10"; break;
d1741141
JM		 1312 case V4L2_PIX_FMT_BGR48: descr = "48-bit BGR 16-16-16"; break;
1313 case V4L2_PIX_FMT_RGB48: descr = "48-bit RGB 16-16-16"; break;
da0b7a40 1314 case V4L2_PIX_FMT_BGR48_12: descr = "12-bit Depth BGR"; break;
302b988c 1315 case V4L2_PIX_FMT_ABGR64_12: descr = "12-bit Depth BGRA"; break;
ba300204
HV		 1316 case V4L2_PIX_FMT_GREY: descr = "8-bit Greyscale"; break;
1317 case V4L2_PIX_FMT_Y4: descr = "4-bit Greyscale"; break;
1318 case V4L2_PIX_FMT_Y6: descr = "6-bit Greyscale"; break;
1319 case V4L2_PIX_FMT_Y10: descr = "10-bit Greyscale"; break;
1320 case V4L2_PIX_FMT_Y12: descr = "12-bit Greyscale"; break;
a490ea68 1321 case V4L2_PIX_FMT_Y012: descr = "12-bit Greyscale (bits 15-4)"; break;
ae9753a0 1322 case V4L2_PIX_FMT_Y14: descr = "14-bit Greyscale"; break;
ba300204 1323 case V4L2_PIX_FMT_Y16: descr = "16-bit Greyscale"; break;
2e5e435f 1324 case V4L2_PIX_FMT_Y16_BE: descr = "16-bit Greyscale BE"; break;
ba300204 1325 case V4L2_PIX_FMT_Y10BPACK: descr = "10-bit Greyscale (Packed)"; break;
6e15bec4 1326 case V4L2_PIX_FMT_Y10P: descr = "10-bit Greyscale (MIPI Packed)"; break;
b87f5e25 1327 case V4L2_PIX_FMT_IPU3_Y10: descr = "10-bit greyscale (IPU3 Packed)"; break;
18104776 1328 case V4L2_PIX_FMT_Y12P: descr = "12-bit Greyscale (MIPI Packed)"; break;
adb1d465 1329 case V4L2_PIX_FMT_Y14P: descr = "14-bit Greyscale (MIPI Packed)"; break;
5b382290
LP		 1330 case V4L2_PIX_FMT_Y8I: descr = "Interleaved 8-bit Greyscale"; break;
1331 case V4L2_PIX_FMT_Y12I: descr = "Interleaved 12-bit Greyscale"; break;
a8f2cdd2 1332 case V4L2_PIX_FMT_Y16I: descr = "Interleaved 16-bit Greyscale"; break;
5b382290 1333 case V4L2_PIX_FMT_Z16: descr = "16-bit Depth"; break;
5df082e2 1334 case V4L2_PIX_FMT_INZI: descr = "Planar 10:16 Greyscale Depth"; break;
92799ef7 1335 case V4L2_PIX_FMT_CNF4: descr = "4-bit Depth Confidence (Packed)"; break;
ba300204
HV		 1336 case V4L2_PIX_FMT_PAL8: descr = "8-bit Palette"; break;
1337 case V4L2_PIX_FMT_UV8: descr = "8-bit Chrominance UV 4-4"; break;
1338 case V4L2_PIX_FMT_YVU410: descr = "Planar YVU 4:1:0"; break;
1339 case V4L2_PIX_FMT_YVU420: descr = "Planar YVU 4:2:0"; break;
1340 case V4L2_PIX_FMT_YUYV: descr = "YUYV 4:2:2"; break;
1341 case V4L2_PIX_FMT_YYUV: descr = "YYUV 4:2:2"; break;
1342 case V4L2_PIX_FMT_YVYU: descr = "YVYU 4:2:2"; break;
1343 case V4L2_PIX_FMT_UYVY: descr = "UYVY 4:2:2"; break;
1344 case V4L2_PIX_FMT_VYUY: descr = "VYUY 4:2:2"; break;
fcbafafb 1345 case V4L2_PIX_FMT_YUV422P: descr = "Planar YUV 4:2:2"; break;
ba300204
HV		 1346 case V4L2_PIX_FMT_YUV411P: descr = "Planar YUV 4:1:1"; break;
1347 case V4L2_PIX_FMT_Y41P: descr = "YUV 4:1:1 (Packed)"; break;
1348 case V4L2_PIX_FMT_YUV444: descr = "16-bit A/XYUV 4-4-4-4"; break;
1349 case V4L2_PIX_FMT_YUV555: descr = "16-bit A/XYUV 1-5-5-5"; break;
1350 case V4L2_PIX_FMT_YUV565: descr = "16-bit YUV 5-6-5"; break;
0376a51f 1351 case V4L2_PIX_FMT_YUV24: descr = "24-bit YUV 4:4:4 8-8-8"; break;
ba300204 1352 case V4L2_PIX_FMT_YUV32: descr = "32-bit A/XYUV 8-8-8-8"; break;
a7fe4ca7
VK		 1353 case V4L2_PIX_FMT_AYUV32: descr = "32-bit AYUV 8-8-8-8"; break;
1354 case V4L2_PIX_FMT_XYUV32: descr = "32-bit XYUV 8-8-8-8"; break;
1355 case V4L2_PIX_FMT_VUYA32: descr = "32-bit VUYA 8-8-8-8"; break;
1356 case V4L2_PIX_FMT_VUYX32: descr = "32-bit VUYX 8-8-8-8"; break;
00f6842e
LP		 1357 case V4L2_PIX_FMT_YUVA32: descr = "32-bit YUVA 8-8-8-8"; break;
1358 case V4L2_PIX_FMT_YUVX32: descr = "32-bit YUVX 8-8-8-8"; break;
ba300204
HV		 1359 case V4L2_PIX_FMT_YUV410: descr = "Planar YUV 4:1:0"; break;
1360 case V4L2_PIX_FMT_YUV420: descr = "Planar YUV 4:2:0"; break;
1361 case V4L2_PIX_FMT_HI240: descr = "8-bit Dithered RGB (BTTV)"; break;
ba300204 1362 case V4L2_PIX_FMT_M420: descr = "YUV 4:2:0 (M420)"; break;
99c95496 1363 case V4L2_PIX_FMT_YUV48_12: descr = "12-bit YUV 4:4:4 Packed"; break;
6a394d56
JS		 1364 case V4L2_PIX_FMT_NV12: descr = "Y/UV 4:2:0"; break;
1365 case V4L2_PIX_FMT_NV21: descr = "Y/VU 4:2:0"; break;
dcbe2aed 1366 case V4L2_PIX_FMT_NV15: descr = "10-bit Y/UV 4:2:0 (Packed)"; break;
6a394d56
JS		 1367 case V4L2_PIX_FMT_NV16: descr = "Y/UV 4:2:2"; break;
1368 case V4L2_PIX_FMT_NV61: descr = "Y/VU 4:2:2"; break;
dcbe2aed 1369 case V4L2_PIX_FMT_NV20: descr = "10-bit Y/UV 4:2:2 (Packed)"; break;
6a394d56
JS		 1370 case V4L2_PIX_FMT_NV24: descr = "Y/UV 4:4:4"; break;
1371 case V4L2_PIX_FMT_NV42: descr = "Y/VU 4:4:4"; break;
1372 case V4L2_PIX_FMT_P010: descr = "10-bit Y/UV 4:2:0"; break;
aa108040 1373 case V4L2_PIX_FMT_P012: descr = "12-bit Y/UV 4:2:0"; break;
6a394d56
JS		 1374 case V4L2_PIX_FMT_NV12_4L4: descr = "Y/UV 4:2:0 (4x4 Linear)"; break;
1375 case V4L2_PIX_FMT_NV12_16L16: descr = "Y/UV 4:2:0 (16x16 Linear)"; break;
1376 case V4L2_PIX_FMT_NV12_32L32: descr = "Y/UV 4:2:0 (32x32 Linear)"; break;
fc91af07 1377 case V4L2_PIX_FMT_NV15_4L4: descr = "10-bit Y/UV 4:2:0 (4x4 Linear)"; break;
6a394d56
JS		 1378 case V4L2_PIX_FMT_P010_4L4: descr = "10-bit Y/UV 4:2:0 (4x4 Linear)"; break;
1379 case V4L2_PIX_FMT_NV12M: descr = "Y/UV 4:2:0 (N-C)"; break;
1380 case V4L2_PIX_FMT_NV21M: descr = "Y/VU 4:2:0 (N-C)"; break;
1381 case V4L2_PIX_FMT_NV16M: descr = "Y/UV 4:2:2 (N-C)"; break;
1382 case V4L2_PIX_FMT_NV61M: descr = "Y/VU 4:2:2 (N-C)"; break;
1383 case V4L2_PIX_FMT_NV12MT: descr = "Y/UV 4:2:0 (64x32 MB, N-C)"; break;
1384 case V4L2_PIX_FMT_NV12MT_16X16: descr = "Y/UV 4:2:0 (16x16 MB, N-C)"; break;
aa108040 1385 case V4L2_PIX_FMT_P012M: descr = "12-bit Y/UV 4:2:0 (N-C)"; break;
ba300204
HV		 1386 case V4L2_PIX_FMT_YUV420M: descr = "Planar YUV 4:2:0 (N-C)"; break;
1387 case V4L2_PIX_FMT_YVU420M: descr = "Planar YVU 4:2:0 (N-C)"; break;
d65fae92
LP		 1388 case V4L2_PIX_FMT_YUV422M: descr = "Planar YUV 4:2:2 (N-C)"; break;
1389 case V4L2_PIX_FMT_YVU422M: descr = "Planar YVU 4:2:2 (N-C)"; break;
1390 case V4L2_PIX_FMT_YUV444M: descr = "Planar YUV 4:4:4 (N-C)"; break;
1391 case V4L2_PIX_FMT_YVU444M: descr = "Planar YVU 4:4:4 (N-C)"; break;
ba300204
HV		 1392 case V4L2_PIX_FMT_SBGGR8: descr = "8-bit Bayer BGBG/GRGR"; break;
1393 case V4L2_PIX_FMT_SGBRG8: descr = "8-bit Bayer GBGB/RGRG"; break;
1394 case V4L2_PIX_FMT_SGRBG8: descr = "8-bit Bayer GRGR/BGBG"; break;
1395 case V4L2_PIX_FMT_SRGGB8: descr = "8-bit Bayer RGRG/GBGB"; break;
1396 case V4L2_PIX_FMT_SBGGR10: descr = "10-bit Bayer BGBG/GRGR"; break;
1397 case V4L2_PIX_FMT_SGBRG10: descr = "10-bit Bayer GBGB/RGRG"; break;
1398 case V4L2_PIX_FMT_SGRBG10: descr = "10-bit Bayer GRGR/BGBG"; break;
1399 case V4L2_PIX_FMT_SRGGB10: descr = "10-bit Bayer RGRG/GBGB"; break;
ba300204
HV		 1400 case V4L2_PIX_FMT_SBGGR10P: descr = "10-bit Bayer BGBG/GRGR Packed"; break;
1401 case V4L2_PIX_FMT_SGBRG10P: descr = "10-bit Bayer GBGB/RGRG Packed"; break;
1402 case V4L2_PIX_FMT_SGRBG10P: descr = "10-bit Bayer GRGR/BGBG Packed"; break;
1403 case V4L2_PIX_FMT_SRGGB10P: descr = "10-bit Bayer RGRG/GBGB Packed"; break;
e8391b76
YZ		 1404 case V4L2_PIX_FMT_IPU3_SBGGR10: descr = "10-bit bayer BGGR IPU3 Packed"; break;
1405 case V4L2_PIX_FMT_IPU3_SGBRG10: descr = "10-bit bayer GBRG IPU3 Packed"; break;
1406 case V4L2_PIX_FMT_IPU3_SGRBG10: descr = "10-bit bayer GRBG IPU3 Packed"; break;
1407 case V4L2_PIX_FMT_IPU3_SRGGB10: descr = "10-bit bayer RGGB IPU3 Packed"; break;
ba300204
HV		 1408 case V4L2_PIX_FMT_SBGGR10ALAW8: descr = "8-bit Bayer BGBG/GRGR (A-law)"; break;
1409 case V4L2_PIX_FMT_SGBRG10ALAW8: descr = "8-bit Bayer GBGB/RGRG (A-law)"; break;
1410 case V4L2_PIX_FMT_SGRBG10ALAW8: descr = "8-bit Bayer GRGR/BGBG (A-law)"; break;
1411 case V4L2_PIX_FMT_SRGGB10ALAW8: descr = "8-bit Bayer RGRG/GBGB (A-law)"; break;
1412 case V4L2_PIX_FMT_SBGGR10DPCM8: descr = "8-bit Bayer BGBG/GRGR (DPCM)"; break;
1413 case V4L2_PIX_FMT_SGBRG10DPCM8: descr = "8-bit Bayer GBGB/RGRG (DPCM)"; break;
1414 case V4L2_PIX_FMT_SGRBG10DPCM8: descr = "8-bit Bayer GRGR/BGBG (DPCM)"; break;
1415 case V4L2_PIX_FMT_SRGGB10DPCM8: descr = "8-bit Bayer RGRG/GBGB (DPCM)"; break;
d1b3437e
SA		 1416 case V4L2_PIX_FMT_SBGGR12: descr = "12-bit Bayer BGBG/GRGR"; break;
1417 case V4L2_PIX_FMT_SGBRG12: descr = "12-bit Bayer GBGB/RGRG"; break;
1418 case V4L2_PIX_FMT_SGRBG12: descr = "12-bit Bayer GRGR/BGBG"; break;
1419 case V4L2_PIX_FMT_SRGGB12: descr = "12-bit Bayer RGRG/GBGB"; break;
1420 case V4L2_PIX_FMT_SBGGR12P: descr = "12-bit Bayer BGBG/GRGR Packed"; break;
1421 case V4L2_PIX_FMT_SGBRG12P: descr = "12-bit Bayer GBGB/RGRG Packed"; break;
1422 case V4L2_PIX_FMT_SGRBG12P: descr = "12-bit Bayer GRGR/BGBG Packed"; break;
1423 case V4L2_PIX_FMT_SRGGB12P: descr = "12-bit Bayer RGRG/GBGB Packed"; break;
d12127ed
SA		 1424 case V4L2_PIX_FMT_SBGGR14: descr = "14-bit Bayer BGBG/GRGR"; break;
1425 case V4L2_PIX_FMT_SGBRG14: descr = "14-bit Bayer GBGB/RGRG"; break;
1426 case V4L2_PIX_FMT_SGRBG14: descr = "14-bit Bayer GRGR/BGBG"; break;
1427 case V4L2_PIX_FMT_SRGGB14: descr = "14-bit Bayer RGRG/GBGB"; break;
83b15832
SA		 1428 case V4L2_PIX_FMT_SBGGR14P: descr = "14-bit Bayer BGBG/GRGR Packed"; break;
1429 case V4L2_PIX_FMT_SGBRG14P: descr = "14-bit Bayer GBGB/RGRG Packed"; break;
1430 case V4L2_PIX_FMT_SGRBG14P: descr = "14-bit Bayer GRGR/BGBG Packed"; break;
1431 case V4L2_PIX_FMT_SRGGB14P: descr = "14-bit Bayer RGRG/GBGB Packed"; break;
b9a4b13c
SA		 1432 case V4L2_PIX_FMT_SBGGR16: descr = "16-bit Bayer BGBG/GRGR"; break;
1433 case V4L2_PIX_FMT_SGBRG16: descr = "16-bit Bayer GBGB/RGRG"; break;
1434 case V4L2_PIX_FMT_SGRBG16: descr = "16-bit Bayer GRGR/BGBG"; break;
1435 case V4L2_PIX_FMT_SRGGB16: descr = "16-bit Bayer RGRG/GBGB"; break;
99b74277 1436 case V4L2_PIX_FMT_SN9C20X_I420: descr = "GSPCA SN9C20X I420"; break;
ba300204
HV		 1437 case V4L2_PIX_FMT_SPCA501: descr = "GSPCA SPCA501"; break;
1438 case V4L2_PIX_FMT_SPCA505: descr = "GSPCA SPCA505"; break;
1439 case V4L2_PIX_FMT_SPCA508: descr = "GSPCA SPCA508"; break;
1440 case V4L2_PIX_FMT_STV0680: descr = "GSPCA STV0680"; break;
1441 case V4L2_PIX_FMT_TM6000: descr = "A/V + VBI Mux Packet"; break;
1442 case V4L2_PIX_FMT_CIT_YYVYUY: descr = "GSPCA CIT YYVYUY"; break;
1443 case V4L2_PIX_FMT_KONICA420: descr = "GSPCA KONICA420"; break;
ffe5350c 1444 case V4L2_PIX_FMT_MM21: descr = "Mediatek 8-bit Block Format"; break;
66b2ab27
RRD		 1445 case V4L2_PIX_FMT_HSV24: descr = "24-bit HSV 8-8-8"; break;
1446 case V4L2_PIX_FMT_HSV32: descr = "32-bit XHSV 8-8-8-8"; break;
48fc10aa
AP		 1447 case V4L2_SDR_FMT_CU8: descr = "Complex U8"; break;
1448 case V4L2_SDR_FMT_CU16LE: descr = "Complex U16LE"; break;
ba300204
HV		 1449 case V4L2_SDR_FMT_CS8: descr = "Complex S8"; break;
1450 case V4L2_SDR_FMT_CS14LE: descr = "Complex S14LE"; break;
1451 case V4L2_SDR_FMT_RU12LE: descr = "Real U12LE"; break;
c28f2118
RS		 1452 case V4L2_SDR_FMT_PCU16BE: descr = "Planar Complex U16BE"; break;
1453 case V4L2_SDR_FMT_PCU18BE: descr = "Planar Complex U18BE"; break;
1454 case V4L2_SDR_FMT_PCU20BE: descr = "Planar Complex U20BE"; break;
4747bd0f
HV		 1455 case V4L2_TCH_FMT_DELTA_TD16: descr = "16-bit Signed Deltas"; break;
1456 case V4L2_TCH_FMT_DELTA_TD08: descr = "8-bit Signed Deltas"; break;
1457 case V4L2_TCH_FMT_TU16: descr = "16-bit Unsigned Touch Data"; break;
1458 case V4L2_TCH_FMT_TU08: descr = "8-bit Unsigned Touch Data"; break;
14d66538 1459 case V4L2_META_FMT_VSP1_HGO: descr = "R-Car VSP1 1-D Histogram"; break;
5deb1c04 1460 case V4L2_META_FMT_VSP1_HGT: descr = "R-Car VSP1 2-D Histogram"; break;
4747bd0f
HV		 1461 case V4L2_META_FMT_UVC: descr = "UVC Payload Header Metadata"; break;
1462 case V4L2_META_FMT_D4XX: descr = "Intel D4xx UVC Metadata"; break;
78892b6b 1463 case V4L2_META_FMT_VIVID: descr = "Vivid Metadata"; break;
df22026a
SZ		 1464 case V4L2_META_FMT_RK_ISP1_PARAMS: descr = "Rockchip ISP1 3A Parameters"; break;
1465 case V4L2_META_FMT_RK_ISP1_STAT_3A: descr = "Rockchip ISP1 3A Statistics"; break;
1fc379f6 1466 case V4L2_META_FMT_RK_ISP1_EXT_PARAMS: descr = "Rockchip ISP1 Ext 3A Params"; break;
a3aa115a
KL		 1467 case V4L2_META_FMT_C3ISP_PARAMS: descr = "Amlogic C3 ISP Parameters"; break;
1468 case V4L2_META_FMT_C3ISP_STATS: descr = "Amlogic C3 ISP Statistics"; break;
5b8bb216 1469 case V4L2_PIX_FMT_NV12_8L128: descr = "NV12 (8x128 Linear)"; break;
72a74c8f 1470 case V4L2_PIX_FMT_NV12M_8L128: descr = "NV12M (8x128 Linear)"; break;
5b8bb216 1471 case V4L2_PIX_FMT_NV12_10BE_8L128: descr = "10-bit NV12 (8x128 Linear, BE)"; break;
72a74c8f 1472 case V4L2_PIX_FMT_NV12M_10BE_8L128: descr = "10-bit NV12M (8x128 Linear, BE)"; break;
0dc1d7a7
TV		 1473 case V4L2_PIX_FMT_Y210: descr = "10-bit YUYV Packed"; break;
1474 case V4L2_PIX_FMT_Y212: descr = "12-bit YUYV Packed"; break;
1475 case V4L2_PIX_FMT_Y216: descr = "16-bit YUYV Packed"; break;
8f6c2202 1476 case V4L2_META_FMT_RPI_BE_CFG: descr = "RPi PiSP BE Config format"; break;
6390834c
TV		 1477 case V4L2_META_FMT_RPI_FE_CFG: descr = "RPi PiSP FE Config format"; break;
1478 case V4L2_META_FMT_RPI_FE_STATS: descr = "RPi PiSP FE Statistics format"; break;
1d921523
SA		 1479 case V4L2_META_FMT_GENERIC_8: descr = "8-bit Generic Metadata"; break;
1480 case V4L2_META_FMT_GENERIC_CSI2_10: descr = "8-bit Generic Meta, 10b CSI-2"; break;
1481 case V4L2_META_FMT_GENERIC_CSI2_12: descr = "8-bit Generic Meta, 12b CSI-2"; break;
1482 case V4L2_META_FMT_GENERIC_CSI2_14: descr = "8-bit Generic Meta, 14b CSI-2"; break;
1483 case V4L2_META_FMT_GENERIC_CSI2_16: descr = "8-bit Generic Meta, 16b CSI-2"; break;
1484 case V4L2_META_FMT_GENERIC_CSI2_20: descr = "8-bit Generic Meta, 20b CSI-2"; break;
1485 case V4L2_META_FMT_GENERIC_CSI2_24: descr = "8-bit Generic Meta, 24b CSI-2"; break;
ba300204
HV		 1486
1487 default:
1488 /* Compressed formats */
1489 flags = V4L2_FMT_FLAG_COMPRESSED;
1490 switch (fmt->pixelformat) {
1491 /* Max description length mask: descr = "0123456789012345678901234567890" */
1492 case V4L2_PIX_FMT_MJPEG: descr = "Motion-JPEG"; break;
1493 case V4L2_PIX_FMT_JPEG: descr = "JFIF JPEG"; break;
1494 case V4L2_PIX_FMT_DV: descr = "1394"; break;
1495 case V4L2_PIX_FMT_MPEG: descr = "MPEG-1/2/4"; break;
1496 case V4L2_PIX_FMT_H264: descr = "H.264"; break;
1497 case V4L2_PIX_FMT_H264_NO_SC: descr = "H.264 (No Start Codes)"; break;
1498 case V4L2_PIX_FMT_H264_MVC: descr = "H.264 MVC"; break;
7bb3c32a 1499 case V4L2_PIX_FMT_H264_SLICE: descr = "H.264 Parsed Slice Data"; break;
ba300204
HV		 1500 case V4L2_PIX_FMT_H263: descr = "H.263"; break;
1501 case V4L2_PIX_FMT_MPEG1: descr = "MPEG-1 ES"; break;
1502 case V4L2_PIX_FMT_MPEG2: descr = "MPEG-2 ES"; break;
c27bb30e 1503 case V4L2_PIX_FMT_MPEG2_SLICE: descr = "MPEG-2 Parsed Slice Data"; break;
4747bd0f 1504 case V4L2_PIX_FMT_MPEG4: descr = "MPEG-4 Part 2 ES"; break;
ba300204
HV		 1505 case V4L2_PIX_FMT_XVID: descr = "Xvid"; break;
1506 case V4L2_PIX_FMT_VC1_ANNEX_G: descr = "VC-1 (SMPTE 412M Annex G)"; break;
1507 case V4L2_PIX_FMT_VC1_ANNEX_L: descr = "VC-1 (SMPTE 412M Annex L)"; break;
1508 case V4L2_PIX_FMT_VP8: descr = "VP8"; break;
a57d6aca 1509 case V4L2_PIX_FMT_VP8_FRAME: descr = "VP8 Frame"; break;
fa14a564 1510 case V4L2_PIX_FMT_VP9: descr = "VP9"; break;
b88dbe38 1511 case V4L2_PIX_FMT_VP9_FRAME: descr = "VP9 Frame"; break;
1c791727 1512 case V4L2_PIX_FMT_HEVC: descr = "HEVC"; break; /* aka H.265 */
256fa392 1513 case V4L2_PIX_FMT_HEVC_SLICE: descr = "HEVC Parsed Slice Data"; break;
62c3fce0 1514 case V4L2_PIX_FMT_FWHT: descr = "FWHT"; break; /* used in vicodec */
f05a51b9 1515 case V4L2_PIX_FMT_FWHT_STATELESS: descr = "FWHT Stateless"; break; /* used in vicodec */
ae77d139 1516 case V4L2_PIX_FMT_SPK: descr = "Sorenson Spark"; break;
ec9aa62a
MQ		 1517 case V4L2_PIX_FMT_RV30: descr = "RealVideo 8"; break;
1518 case V4L2_PIX_FMT_RV40: descr = "RealVideo 9 & 10"; break;
ba300204
HV		 1519 case V4L2_PIX_FMT_CPIA1: descr = "GSPCA CPiA YUV"; break;
1520 case V4L2_PIX_FMT_WNVA: descr = "WNVA"; break;
1521 case V4L2_PIX_FMT_SN9C10X: descr = "GSPCA SN9C10X"; break;
1522 case V4L2_PIX_FMT_PWC1: descr = "Raw Philips Webcam Type (Old)"; break;
1523 case V4L2_PIX_FMT_PWC2: descr = "Raw Philips Webcam Type (New)"; break;
1524 case V4L2_PIX_FMT_ET61X251: descr = "GSPCA ET61X251"; break;
1525 case V4L2_PIX_FMT_SPCA561: descr = "GSPCA SPCA561"; break;
1526 case V4L2_PIX_FMT_PAC207: descr = "GSPCA PAC207"; break;
1527 case V4L2_PIX_FMT_MR97310A: descr = "GSPCA MR97310A"; break;
1528 case V4L2_PIX_FMT_JL2005BCD: descr = "GSPCA JL2005BCD"; break;
1529 case V4L2_PIX_FMT_SN9C2028: descr = "GSPCA SN9C2028"; break;
1530 case V4L2_PIX_FMT_SQ905C: descr = "GSPCA SQ905C"; break;
1531 case V4L2_PIX_FMT_PJPG: descr = "GSPCA PJPG"; break;
1532 case V4L2_PIX_FMT_OV511: descr = "GSPCA OV511"; break;
1533 case V4L2_PIX_FMT_OV518: descr = "GSPCA OV518"; break;
1534 case V4L2_PIX_FMT_JPGL: descr = "JPEG Lite"; break;
1535 case V4L2_PIX_FMT_SE401: descr = "GSPCA SE401"; break;
1536 case V4L2_PIX_FMT_S5C_UYVY_JPG: descr = "S5C73MX interleaved UYVY/JPEG"; break;
d4de6634 1537 case V4L2_PIX_FMT_MT21C: descr = "Mediatek Compressed Format"; break;
2308d5af
SV		 1538 case V4L2_PIX_FMT_QC08C: descr = "QCOM Compressed 8-bit Format"; break;
1539 case V4L2_PIX_FMT_QC10C: descr = "QCOM Compressed 10-bit Format"; break;
7a4b3770 1540 case V4L2_PIX_FMT_AJPG: descr = "Aspeed JPEG"; break;
9de30f57 1541 case V4L2_PIX_FMT_AV1_FRAME: descr = "AV1 Frame"; break;
6afcc2b0 1542 case V4L2_PIX_FMT_MT2110T: descr = "Mediatek 10bit Tile Mode"; break;
1dff2beb 1543 case V4L2_PIX_FMT_MT2110R: descr = "Mediatek 10bit Raster Mode"; break;
d62d8e7b 1544 case V4L2_PIX_FMT_HEXTILE: descr = "Hextile Compressed Format"; break;
d260c122
JM		 1545 case V4L2_PIX_FMT_PISP_COMP1_RGGB: descr = "PiSP 8b RGRG/GBGB mode1 compr"; break;
1546 case V4L2_PIX_FMT_PISP_COMP1_GRBG: descr = "PiSP 8b GRGR/BGBG mode1 compr"; break;
1547 case V4L2_PIX_FMT_PISP_COMP1_GBRG: descr = "PiSP 8b GBGB/RGRG mode1 compr"; break;
1548 case V4L2_PIX_FMT_PISP_COMP1_BGGR: descr = "PiSP 8b BGBG/GRGR mode1 compr"; break;
1549 case V4L2_PIX_FMT_PISP_COMP1_MONO: descr = "PiSP 8b monochrome mode1 compr"; break;
1550 case V4L2_PIX_FMT_PISP_COMP2_RGGB: descr = "PiSP 8b RGRG/GBGB mode2 compr"; break;
1551 case V4L2_PIX_FMT_PISP_COMP2_GRBG: descr = "PiSP 8b GRGR/BGBG mode2 compr"; break;
1552 case V4L2_PIX_FMT_PISP_COMP2_GBRG: descr = "PiSP 8b GBGB/RGRG mode2 compr"; break;
1553 case V4L2_PIX_FMT_PISP_COMP2_BGGR: descr = "PiSP 8b BGBG/GRGR mode2 compr"; break;
1554 case V4L2_PIX_FMT_PISP_COMP2_MONO: descr = "PiSP 8b monochrome mode2 compr"; break;
ba300204 1555 default:
ba300204
HV		 1556 if (fmt->description[0])
1557 return;
c2286cc0 1558 WARN(1, "Unknown pixelformat 0x%08x\n", fmt->pixelformat);
ba300204 1559 flags = 0;
e927e1e0
SA		 1560 snprintf(fmt->description, sz, "%p4cc",
1561 &fmt->pixelformat);
ba300204
HV		 1562 break;
1563 }
1564 }
1565
21828609
SA		 1566 if (fmt->type == V4L2_BUF_TYPE_META_CAPTURE) {
1567 switch (fmt->pixelformat) {
1568 case V4L2_META_FMT_GENERIC_8:
1569 case V4L2_META_FMT_GENERIC_CSI2_10:
1570 case V4L2_META_FMT_GENERIC_CSI2_12:
1571 case V4L2_META_FMT_GENERIC_CSI2_14:
1572 case V4L2_META_FMT_GENERIC_CSI2_16:
1573 case V4L2_META_FMT_GENERIC_CSI2_20:
1574 case V4L2_META_FMT_GENERIC_CSI2_24:
1575 fmt->flags |= V4L2_FMT_FLAG_META_LINE_BASED;
1576 break;
1577 default:
1578 fmt->flags &= ~V4L2_FMT_FLAG_META_LINE_BASED;
1579 }
1580 }
1581
ba300204 1582 if (descr)
e7dd89ce 1583 WARN_ON(strscpy(fmt->description, descr, sz) < 0);
7c490e25 1584 fmt->flags |= flags;
ba300204
HV		 1585}
1586
be6c64e4
HV		 1587static int v4l_enum_fmt(const struct v4l2_ioctl_ops *ops,
1588 struct file *file, void *fh, void *arg)
1589{
7e98b7b5 1590 struct video_device *vdev = video_devdata(file);
be6c64e4 1591 struct v4l2_fmtdesc *p = arg;
b2469c81 1592 int ret = check_fmt(file, p->type);
e5b6b07a 1593 u32 mbus_code;
f0d2b7a8 1594 u32 cap_mask;
b2469c81
HV		 1595
1596 if (ret)
1597 return ret;
1598 ret = -EINVAL;
be6c64e4 1599
e5b6b07a
LP		 1600 if (!(vdev->device_caps & V4L2_CAP_IO_MC))
1601 p->mbus_code = 0;
1602
1603 mbus_code = p->mbus_code;
0625b6b8 1604 memset_after(p, 0, type);
e5b6b07a
LP		 1605 p->mbus_code = mbus_code;
1606
be6c64e4
HV		 1607 switch (p->type) {
1608 case V4L2_BUF_TYPE_VIDEO_CAPTURE:
7e98b7b5 1609 case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE:
f0d2b7a8
BB		 1610 cap_mask = V4L2_CAP_VIDEO_CAPTURE_MPLANE |
1611 V4L2_CAP_VIDEO_M2M_MPLANE;
1612 if (!!(vdev->device_caps & cap_mask) !=
7e98b7b5
BB		 1613 (p->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE))
1614 break;
1615
b2469c81 1616 if (unlikely(!ops->vidioc_enum_fmt_vid_cap))
be6c64e4 1617 break;
ba300204
HV		 1618 ret = ops->vidioc_enum_fmt_vid_cap(file, fh, arg);
1619 break;
be6c64e4 1620 case V4L2_BUF_TYPE_VIDEO_OVERLAY:
b2469c81 1621 if (unlikely(!ops->vidioc_enum_fmt_vid_overlay))
be6c64e4 1622 break;
ba300204
HV		 1623 ret = ops->vidioc_enum_fmt_vid_overlay(file, fh, arg);
1624 break;
be6c64e4 1625 case V4L2_BUF_TYPE_VIDEO_OUTPUT:
7e98b7b5 1626 case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE:
f0d2b7a8
BB		 1627 cap_mask = V4L2_CAP_VIDEO_OUTPUT_MPLANE |
1628 V4L2_CAP_VIDEO_M2M_MPLANE;
1629 if (!!(vdev->device_caps & cap_mask) !=
7e98b7b5
BB		 1630 (p->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE))
1631 break;
1632
b2469c81 1633 if (unlikely(!ops->vidioc_enum_fmt_vid_out))
be6c64e4 1634 break;
ba300204
HV		 1635 ret = ops->vidioc_enum_fmt_vid_out(file, fh, arg);
1636 break;
582c52cb 1637 case V4L2_BUF_TYPE_SDR_CAPTURE:
b2469c81 1638 if (unlikely(!ops->vidioc_enum_fmt_sdr_cap))
582c52cb 1639 break;
ba300204
HV		 1640 ret = ops->vidioc_enum_fmt_sdr_cap(file, fh, arg);
1641 break;
9effc72f 1642 case V4L2_BUF_TYPE_SDR_OUTPUT:
b2469c81 1643 if (unlikely(!ops->vidioc_enum_fmt_sdr_out))
9effc72f
AP		 1644 break;
1645 ret = ops->vidioc_enum_fmt_sdr_out(file, fh, arg);
1646 break;
fb9ffa6a 1647 case V4L2_BUF_TYPE_META_CAPTURE:
b2469c81 1648 if (unlikely(!ops->vidioc_enum_fmt_meta_cap))
fb9ffa6a
LP		 1649 break;
1650 ret = ops->vidioc_enum_fmt_meta_cap(file, fh, arg);
1651 break;
72148d1a
SA		 1652 case V4L2_BUF_TYPE_META_OUTPUT:
1653 if (unlikely(!ops->vidioc_enum_fmt_meta_out))
1654 break;
1655 ret = ops->vidioc_enum_fmt_meta_out(file, fh, arg);
1656 break;
be6c64e4 1657 }
ba300204
HV		 1658 if (ret == 0)
1659 v4l_fill_fmtdesc(p);
1660 return ret;
be6c64e4
HV		 1661}
1662
545b618c
VB		 1663static void v4l_pix_format_touch(struct v4l2_pix_format *p)
1664{
1665 /*
1666 * The v4l2_pix_format structure contains fields that make no sense for
1667 * touch. Set them to default values in this case.
1668 */
1669
1670 p->field = V4L2_FIELD_NONE;
1671 p->colorspace = V4L2_COLORSPACE_RAW;
1672 p->flags = 0;
1673 p->ycbcr_enc = 0;
1674 p->quantization = 0;
1675 p->xfer_func = 0;
1676}
1677
be6c64e4
HV		 1678static int v4l_g_fmt(const struct v4l2_ioctl_ops *ops,
1679 struct file *file, void *fh, void *arg)
1680{
1681 struct v4l2_format *p = arg;
545b618c 1682 struct video_device *vfd = video_devdata(file);
b2469c81
HV		 1683 int ret = check_fmt(file, p->type);
1684
1685 if (ret)
1686 return ret;
d52e2381 1687
99ba0703 1688 memset(&p->fmt, 0, sizeof(p->fmt));
e5ce558a 1689
be6c64e4
HV		 1690 switch (p->type) {
1691 case V4L2_BUF_TYPE_VIDEO_CAPTURE:
b2469c81 1692 if (unlikely(!ops->vidioc_g_fmt_vid_cap))
be6c64e4 1693 break;
48f2650a 1694 p->fmt.pix.priv = V4L2_PIX_FMT_PRIV_MAGIC;
d52e2381 1695 ret = ops->vidioc_g_fmt_vid_cap(file, fh, arg);
48f2650a 1696 /* just in case the driver zeroed it again */
d52e2381 1697 p->fmt.pix.priv = V4L2_PIX_FMT_PRIV_MAGIC;
545b618c
VB		 1698 if (vfd->vfl_type == VFL_TYPE_TOUCH)
1699 v4l_pix_format_touch(&p->fmt.pix);
d52e2381 1700 return ret;
be6c64e4 1701 case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE:
be6c64e4
HV		 1702 return ops->vidioc_g_fmt_vid_cap_mplane(file, fh, arg);
1703 case V4L2_BUF_TYPE_VIDEO_OVERLAY:
be6c64e4 1704 return ops->vidioc_g_fmt_vid_overlay(file, fh, arg);
4b20259f 1705 case V4L2_BUF_TYPE_VBI_CAPTURE:
4b20259f
HV		 1706 return ops->vidioc_g_fmt_vbi_cap(file, fh, arg);
1707 case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE:
4b20259f 1708 return ops->vidioc_g_fmt_sliced_vbi_cap(file, fh, arg);
be6c64e4 1709 case V4L2_BUF_TYPE_VIDEO_OUTPUT:
b2469c81 1710 if (unlikely(!ops->vidioc_g_fmt_vid_out))
be6c64e4 1711 break;
48f2650a 1712 p->fmt.pix.priv = V4L2_PIX_FMT_PRIV_MAGIC;
d52e2381 1713 ret = ops->vidioc_g_fmt_vid_out(file, fh, arg);
48f2650a 1714 /* just in case the driver zeroed it again */
d52e2381
LP		 1715 p->fmt.pix.priv = V4L2_PIX_FMT_PRIV_MAGIC;
1716 return ret;
be6c64e4 1717 case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE:
be6c64e4
HV		 1718 return ops->vidioc_g_fmt_vid_out_mplane(file, fh, arg);
1719 case V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY:
be6c64e4 1720 return ops->vidioc_g_fmt_vid_out_overlay(file, fh, arg);
be6c64e4 1721 case V4L2_BUF_TYPE_VBI_OUTPUT:
be6c64e4 1722 return ops->vidioc_g_fmt_vbi_out(file, fh, arg);
be6c64e4 1723 case V4L2_BUF_TYPE_SLICED_VBI_OUTPUT:
be6c64e4 1724 return ops->vidioc_g_fmt_sliced_vbi_out(file, fh, arg);
582c52cb 1725 case V4L2_BUF_TYPE_SDR_CAPTURE:
582c52cb 1726 return ops->vidioc_g_fmt_sdr_cap(file, fh, arg);
9effc72f 1727 case V4L2_BUF_TYPE_SDR_OUTPUT:
9effc72f 1728 return ops->vidioc_g_fmt_sdr_out(file, fh, arg);
fb9ffa6a 1729 case V4L2_BUF_TYPE_META_CAPTURE:
fb9ffa6a 1730 return ops->vidioc_g_fmt_meta_cap(file, fh, arg);
72148d1a
SA		 1731 case V4L2_BUF_TYPE_META_OUTPUT:
1732 return ops->vidioc_g_fmt_meta_out(file, fh, arg);
be6c64e4
HV		 1733 }
1734 return -EINVAL;
1735}
1736
1737static int v4l_s_fmt(const struct v4l2_ioctl_ops *ops,
1738 struct file *file, void *fh, void *arg)
1739{
1740 struct v4l2_format *p = arg;
4b20259f 1741 struct video_device *vfd = video_devdata(file);
b2469c81 1742 int ret = check_fmt(file, p->type);
4e1e0eb0 1743 unsigned int i;
b2469c81
HV		 1744
1745 if (ret)
1746 return ret;
be6c64e4 1747
77fa4e07
SK		 1748 ret = v4l_enable_media_source(vfd);
1749 if (ret)
1750 return ret;
d52e2381
LP		 1751 v4l_sanitize_format(p);
1752
be6c64e4
HV		 1753 switch (p->type) {
1754 case V4L2_BUF_TYPE_VIDEO_CAPTURE:
b2469c81 1755 if (unlikely(!ops->vidioc_s_fmt_vid_cap))
be6c64e4 1756 break;
0625b6b8 1757 memset_after(p, 0, fmt.pix);
48f2650a
HV		 1758 ret = ops->vidioc_s_fmt_vid_cap(file, fh, arg);
1759 /* just in case the driver zeroed it again */
1760 p->fmt.pix.priv = V4L2_PIX_FMT_PRIV_MAGIC;
b2469c81 1761 if (vfd->vfl_type == VFL_TYPE_TOUCH)
b2fe22d0 1762 v4l_pix_format_touch(&p->fmt.pix);
48f2650a 1763 return ret;
be6c64e4 1764 case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE:
b2469c81 1765 if (unlikely(!ops->vidioc_s_fmt_vid_cap_mplane))
be6c64e4 1766 break;
0625b6b8 1767 memset_after(p, 0, fmt.pix_mp.xfer_func);
4e1e0eb0 1768 for (i = 0; i < p->fmt.pix_mp.num_planes; i++)
0625b6b8
XJ		 1769 memset_after(&p->fmt.pix_mp.plane_fmt[i],
1770 0, bytesperline);
be6c64e4
HV		 1771 return ops->vidioc_s_fmt_vid_cap_mplane(file, fh, arg);
1772 case V4L2_BUF_TYPE_VIDEO_OVERLAY:
b2469c81 1773 if (unlikely(!ops->vidioc_s_fmt_vid_overlay))
be6c64e4 1774 break;
0625b6b8 1775 memset_after(p, 0, fmt.win);
99ba0703
HV		 1776 p->fmt.win.clips = NULL;
1777 p->fmt.win.clipcount = 0;
1778 p->fmt.win.bitmap = NULL;
be6c64e4 1779 return ops->vidioc_s_fmt_vid_overlay(file, fh, arg);
4b20259f 1780 case V4L2_BUF_TYPE_VBI_CAPTURE:
b2469c81 1781 if (unlikely(!ops->vidioc_s_fmt_vbi_cap))
4b20259f 1782 break;
0625b6b8 1783 memset_after(p, 0, fmt.vbi.flags);
4b20259f
HV		 1784 return ops->vidioc_s_fmt_vbi_cap(file, fh, arg);
1785 case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE:
b2469c81 1786 if (unlikely(!ops->vidioc_s_fmt_sliced_vbi_cap))
4b20259f 1787 break;
0625b6b8 1788 memset_after(p, 0, fmt.sliced.io_size);
4b20259f 1789 return ops->vidioc_s_fmt_sliced_vbi_cap(file, fh, arg);
be6c64e4 1790 case V4L2_BUF_TYPE_VIDEO_OUTPUT:
b2469c81 1791 if (unlikely(!ops->vidioc_s_fmt_vid_out))
be6c64e4 1792 break;
0625b6b8 1793 memset_after(p, 0, fmt.pix);
48f2650a
HV		 1794 ret = ops->vidioc_s_fmt_vid_out(file, fh, arg);
1795 /* just in case the driver zeroed it again */
1796 p->fmt.pix.priv = V4L2_PIX_FMT_PRIV_MAGIC;
1797 return ret;
be6c64e4 1798 case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE:
b2469c81 1799 if (unlikely(!ops->vidioc_s_fmt_vid_out_mplane))
be6c64e4 1800 break;
0625b6b8 1801 memset_after(p, 0, fmt.pix_mp.xfer_func);
4e1e0eb0 1802 for (i = 0; i < p->fmt.pix_mp.num_planes; i++)
0625b6b8
XJ		 1803 memset_after(&p->fmt.pix_mp.plane_fmt[i],
1804 0, bytesperline);
be6c64e4
HV		 1805 return ops->vidioc_s_fmt_vid_out_mplane(file, fh, arg);
1806 case V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY:
b2469c81 1807 if (unlikely(!ops->vidioc_s_fmt_vid_out_overlay))
be6c64e4 1808 break;
0625b6b8 1809 memset_after(p, 0, fmt.win);
99ba0703
HV		 1810 p->fmt.win.clips = NULL;
1811 p->fmt.win.clipcount = 0;
1812 p->fmt.win.bitmap = NULL;
be6c64e4 1813 return ops->vidioc_s_fmt_vid_out_overlay(file, fh, arg);
be6c64e4 1814 case V4L2_BUF_TYPE_VBI_OUTPUT:
b2469c81 1815 if (unlikely(!ops->vidioc_s_fmt_vbi_out))
be6c64e4 1816 break;
0625b6b8 1817 memset_after(p, 0, fmt.vbi.flags);
be6c64e4 1818 return ops->vidioc_s_fmt_vbi_out(file, fh, arg);
be6c64e4 1819 case V4L2_BUF_TYPE_SLICED_VBI_OUTPUT:
b2469c81 1820 if (unlikely(!ops->vidioc_s_fmt_sliced_vbi_out))
be6c64e4 1821 break;
0625b6b8 1822 memset_after(p, 0, fmt.sliced.io_size);
be6c64e4 1823 return ops->vidioc_s_fmt_sliced_vbi_out(file, fh, arg);
582c52cb 1824 case V4L2_BUF_TYPE_SDR_CAPTURE:
b2469c81 1825 if (unlikely(!ops->vidioc_s_fmt_sdr_cap))
582c52cb 1826 break;
0625b6b8 1827 memset_after(p, 0, fmt.sdr.buffersize);
582c52cb 1828 return ops->vidioc_s_fmt_sdr_cap(file, fh, arg);
9effc72f 1829 case V4L2_BUF_TYPE_SDR_OUTPUT:
b2469c81 1830 if (unlikely(!ops->vidioc_s_fmt_sdr_out))
9effc72f 1831 break;
0625b6b8 1832 memset_after(p, 0, fmt.sdr.buffersize);
9effc72f 1833 return ops->vidioc_s_fmt_sdr_out(file, fh, arg);
fb9ffa6a 1834 case V4L2_BUF_TYPE_META_CAPTURE:
b2469c81 1835 if (unlikely(!ops->vidioc_s_fmt_meta_cap))
fb9ffa6a 1836 break;
0625b6b8 1837 memset_after(p, 0, fmt.meta);
fb9ffa6a 1838 return ops->vidioc_s_fmt_meta_cap(file, fh, arg);
72148d1a
SA		 1839 case V4L2_BUF_TYPE_META_OUTPUT:
1840 if (unlikely(!ops->vidioc_s_fmt_meta_out))
1841 break;
0625b6b8 1842 memset_after(p, 0, fmt.meta);
72148d1a 1843 return ops->vidioc_s_fmt_meta_out(file, fh, arg);
be6c64e4
HV		 1844 }
1845 return -EINVAL;
1846}
1847
1848static int v4l_try_fmt(const struct v4l2_ioctl_ops *ops,
1849 struct file *file, void *fh, void *arg)
1850{
1851 struct v4l2_format *p = arg;
999a4312 1852 struct video_device *vfd = video_devdata(file);
b2469c81 1853 int ret = check_fmt(file, p->type);
4e1e0eb0 1854 unsigned int i;
b2469c81
HV		 1855
1856 if (ret)
1857 return ret;
be6c64e4 1858
d52e2381
LP		 1859 v4l_sanitize_format(p);
1860
be6c64e4
HV		 1861 switch (p->type) {
1862 case V4L2_BUF_TYPE_VIDEO_CAPTURE:
b2469c81 1863 if (unlikely(!ops->vidioc_try_fmt_vid_cap))
be6c64e4 1864 break;
0625b6b8 1865 memset_after(p, 0, fmt.pix);
48f2650a
HV		 1866 ret = ops->vidioc_try_fmt_vid_cap(file, fh, arg);
1867 /* just in case the driver zeroed it again */
1868 p->fmt.pix.priv = V4L2_PIX_FMT_PRIV_MAGIC;
999a4312
HV		 1869 if (vfd->vfl_type == VFL_TYPE_TOUCH)
1870 v4l_pix_format_touch(&p->fmt.pix);
48f2650a 1871 return ret;
be6c64e4 1872 case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE:
b2469c81 1873 if (unlikely(!ops->vidioc_try_fmt_vid_cap_mplane))
be6c64e4 1874 break;
0625b6b8 1875 memset_after(p, 0, fmt.pix_mp.xfer_func);
4e1e0eb0 1876 for (i = 0; i < p->fmt.pix_mp.num_planes; i++)
0625b6b8
XJ		 1877 memset_after(&p->fmt.pix_mp.plane_fmt[i],
1878 0, bytesperline);
be6c64e4
HV		 1879 return ops->vidioc_try_fmt_vid_cap_mplane(file, fh, arg);
1880 case V4L2_BUF_TYPE_VIDEO_OVERLAY:
b2469c81 1881 if (unlikely(!ops->vidioc_try_fmt_vid_overlay))
be6c64e4 1882 break;
0625b6b8 1883 memset_after(p, 0, fmt.win);
99ba0703
HV		 1884 p->fmt.win.clips = NULL;
1885 p->fmt.win.clipcount = 0;
1886 p->fmt.win.bitmap = NULL;
be6c64e4 1887 return ops->vidioc_try_fmt_vid_overlay(file, fh, arg);
4b20259f 1888 case V4L2_BUF_TYPE_VBI_CAPTURE:
b2469c81 1889 if (unlikely(!ops->vidioc_try_fmt_vbi_cap))
4b20259f 1890 break;
0625b6b8 1891 memset_after(p, 0, fmt.vbi.flags);
4b20259f
HV		 1892 return ops->vidioc_try_fmt_vbi_cap(file, fh, arg);
1893 case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE:
b2469c81 1894 if (unlikely(!ops->vidioc_try_fmt_sliced_vbi_cap))
4b20259f 1895 break;
0625b6b8 1896 memset_after(p, 0, fmt.sliced.io_size);
4b20259f 1897 return ops->vidioc_try_fmt_sliced_vbi_cap(file, fh, arg);
be6c64e4 1898 case V4L2_BUF_TYPE_VIDEO_OUTPUT:
b2469c81 1899 if (unlikely(!ops->vidioc_try_fmt_vid_out))
be6c64e4 1900 break;
0625b6b8 1901 memset_after(p, 0, fmt.pix);
48f2650a
HV		 1902 ret = ops->vidioc_try_fmt_vid_out(file, fh, arg);
1903 /* just in case the driver zeroed it again */
1904 p->fmt.pix.priv = V4L2_PIX_FMT_PRIV_MAGIC;
1905 return ret;
be6c64e4 1906 case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE:
b2469c81 1907 if (unlikely(!ops->vidioc_try_fmt_vid_out_mplane))
be6c64e4 1908 break;
0625b6b8 1909 memset_after(p, 0, fmt.pix_mp.xfer_func);
4e1e0eb0 1910 for (i = 0; i < p->fmt.pix_mp.num_planes; i++)
0625b6b8
XJ		 1911 memset_after(&p->fmt.pix_mp.plane_fmt[i],
1912 0, bytesperline);
be6c64e4
HV		 1913 return ops->vidioc_try_fmt_vid_out_mplane(file, fh, arg);
1914 case V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY:
b2469c81 1915 if (unlikely(!ops->vidioc_try_fmt_vid_out_overlay))
be6c64e4 1916 break;
0625b6b8 1917 memset_after(p, 0, fmt.win);
99ba0703
HV		 1918 p->fmt.win.clips = NULL;
1919 p->fmt.win.clipcount = 0;
1920 p->fmt.win.bitmap = NULL;
be6c64e4 1921 return ops->vidioc_try_fmt_vid_out_overlay(file, fh, arg);
be6c64e4 1922 case V4L2_BUF_TYPE_VBI_OUTPUT:
b2469c81 1923 if (unlikely(!ops->vidioc_try_fmt_vbi_out))
be6c64e4 1924 break;
0625b6b8 1925 memset_after(p, 0, fmt.vbi.flags);
be6c64e4 1926 return ops->vidioc_try_fmt_vbi_out(file, fh, arg);
be6c64e4 1927 case V4L2_BUF_TYPE_SLICED_VBI_OUTPUT:
b2469c81 1928 if (unlikely(!ops->vidioc_try_fmt_sliced_vbi_out))
be6c64e4 1929 break;
0625b6b8 1930 memset_after(p, 0, fmt.sliced.io_size);
be6c64e4 1931 return ops->vidioc_try_fmt_sliced_vbi_out(file, fh, arg);
582c52cb 1932 case V4L2_BUF_TYPE_SDR_CAPTURE:
b2469c81 1933 if (unlikely(!ops->vidioc_try_fmt_sdr_cap))
582c52cb 1934 break;
0625b6b8 1935 memset_after(p, 0, fmt.sdr.buffersize);
582c52cb 1936 return ops->vidioc_try_fmt_sdr_cap(file, fh, arg);
9effc72f 1937 case V4L2_BUF_TYPE_SDR_OUTPUT:
b2469c81 1938 if (unlikely(!ops->vidioc_try_fmt_sdr_out))
9effc72f 1939 break;
0625b6b8 1940 memset_after(p, 0, fmt.sdr.buffersize);
9effc72f 1941 return ops->vidioc_try_fmt_sdr_out(file, fh, arg);
fb9ffa6a 1942 case V4L2_BUF_TYPE_META_CAPTURE:
b2469c81 1943 if (unlikely(!ops->vidioc_try_fmt_meta_cap))
fb9ffa6a 1944 break;
0625b6b8 1945 memset_after(p, 0, fmt.meta);
fb9ffa6a 1946 return ops->vidioc_try_fmt_meta_cap(file, fh, arg);
72148d1a
SA		 1947 case V4L2_BUF_TYPE_META_OUTPUT:
1948 if (unlikely(!ops->vidioc_try_fmt_meta_out))
1949 break;
0625b6b8 1950 memset_after(p, 0, fmt.meta);
72148d1a 1951 return ops->vidioc_try_fmt_meta_out(file, fh, arg);
be6c64e4
HV		 1952 }
1953 return -EINVAL;
1954}
1955
e325b244
HV		 1956static int v4l_streamon(const struct v4l2_ioctl_ops *ops,
1957 struct file *file, void *fh, void *arg)
1958{
1959 return ops->vidioc_streamon(file, fh, *(unsigned int *)arg);
1960}
1961
1962static int v4l_streamoff(const struct v4l2_ioctl_ops *ops,
1963 struct file *file, void *fh, void *arg)
1964{
1965 return ops->vidioc_streamoff(file, fh, *(unsigned int *)arg);
1966}
1967
4b1e2e4d
HV		 1968static int v4l_g_tuner(const struct v4l2_ioctl_ops *ops,
1969 struct file *file, void *fh, void *arg)
1970{
1971 struct video_device *vfd = video_devdata(file);
1972 struct v4l2_tuner *p = arg;
82b655bf 1973 int err;
4b1e2e4d
HV		 1974
1975 p->type = (vfd->vfl_type == VFL_TYPE_RADIO) ?
1976 V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV;
82b655bf
HV		 1977 err = ops->vidioc_g_tuner(file, fh, p);
1978 if (!err)
1979 p->capability |= V4L2_TUNER_CAP_FREQ_BANDS;
1980 return err;
4b1e2e4d
HV		 1981}
1982
1983static int v4l_s_tuner(const struct v4l2_ioctl_ops *ops,
1984 struct file *file, void *fh, void *arg)
1985{
1986 struct video_device *vfd = video_devdata(file);
1987 struct v4l2_tuner *p = arg;
77fa4e07 1988 int ret;
4b1e2e4d 1989
77fa4e07
SK		 1990 ret = v4l_enable_media_source(vfd);
1991 if (ret)
1992 return ret;
4b1e2e4d
HV		 1993 p->type = (vfd->vfl_type == VFL_TYPE_RADIO) ?
1994 V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV;
1995 return ops->vidioc_s_tuner(file, fh, p);
1996}
1997
82b655bf
HV		 1998static int v4l_g_modulator(const struct v4l2_ioctl_ops *ops,
1999 struct file *file, void *fh, void *arg)
2000{
4124a3c4 2001 struct video_device *vfd = video_devdata(file);
82b655bf
HV		 2002 struct v4l2_modulator *p = arg;
2003 int err;
2004
4124a3c4
AP		 2005 if (vfd->vfl_type == VFL_TYPE_RADIO)
2006 p->type = V4L2_TUNER_RADIO;
2007
82b655bf
HV		 2008 err = ops->vidioc_g_modulator(file, fh, p);
2009 if (!err)
2010 p->capability |= V4L2_TUNER_CAP_FREQ_BANDS;
2011 return err;
2012}
2013
4124a3c4
AP		 2014static int v4l_s_modulator(const struct v4l2_ioctl_ops *ops,
2015 struct file *file, void *fh, void *arg)
2016{
2017 struct video_device *vfd = video_devdata(file);
2018 struct v4l2_modulator *p = arg;
2019
2020 if (vfd->vfl_type == VFL_TYPE_RADIO)
2021 p->type = V4L2_TUNER_RADIO;
2022
2023 return ops->vidioc_s_modulator(file, fh, p);
2024}
2025
4b1e2e4d
HV		 2026static int v4l_g_frequency(const struct v4l2_ioctl_ops *ops,
2027 struct file *file, void *fh, void *arg)
2028{
2029 struct video_device *vfd = video_devdata(file);
2030 struct v4l2_frequency *p = arg;
2031
84099a28 2032 if (vfd->vfl_type == VFL_TYPE_SDR)
f3c3ecec 2033 p->type = V4L2_TUNER_SDR;
84099a28
AP		 2034 else
2035 p->type = (vfd->vfl_type == VFL_TYPE_RADIO) ?
2036 V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV;
4b1e2e4d
HV		 2037 return ops->vidioc_g_frequency(file, fh, p);
2038}
2039
2040static int v4l_s_frequency(const struct v4l2_ioctl_ops *ops,
2041 struct file *file, void *fh, void *arg)
2042{
2043 struct video_device *vfd = video_devdata(file);
b530a447 2044 const struct v4l2_frequency *p = arg;
4b1e2e4d 2045 enum v4l2_tuner_type type;
77fa4e07 2046 int ret;
4b1e2e4d 2047
77fa4e07
SK		 2048 ret = v4l_enable_media_source(vfd);
2049 if (ret)
2050 return ret;
84099a28 2051 if (vfd->vfl_type == VFL_TYPE_SDR) {
f3c3ecec 2052 if (p->type != V4L2_TUNER_SDR && p->type != V4L2_TUNER_RF)
84099a28
AP		 2053 return -EINVAL;
2054 } else {
2055 type = (vfd->vfl_type == VFL_TYPE_RADIO) ?
2056 V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV;
2057 if (type != p->type)
2058 return -EINVAL;
2059 }
4b1e2e4d
HV		 2060 return ops->vidioc_s_frequency(file, fh, p);
2061}
2062
2063static int v4l_enumstd(const struct v4l2_ioctl_ops *ops,
2064 struct file *file, void *fh, void *arg)
2065{
2066 struct video_device *vfd = video_devdata(file);
2067 struct v4l2_standard *p = arg;
a5338190 2068
aa2f8871 2069 return v4l_video_std_enumstd(p, vfd->tvnorms);
4b1e2e4d
HV		 2070}
2071
4b1e2e4d
HV		 2072static int v4l_s_std(const struct v4l2_ioctl_ops *ops,
2073 struct file *file, void *fh, void *arg)
2074{
2075 struct video_device *vfd = video_devdata(file);
314527ac 2076 v4l2_std_id id = *(v4l2_std_id *)arg, norm;
77fa4e07 2077 int ret;
4b1e2e4d 2078
77fa4e07
SK		 2079 ret = v4l_enable_media_source(vfd);
2080 if (ret)
2081 return ret;
314527ac 2082 norm = id & vfd->tvnorms;
4b1e2e4d
HV		 2083 if (vfd->tvnorms && !norm) /* Check if std is supported */
2084 return -EINVAL;
2085
2086 /* Calls the specific handler */
ca371575 2087 return ops->vidioc_s_std(file, fh, norm);
4b1e2e4d
HV		 2088}
2089
2090static int v4l_querystd(const struct v4l2_ioctl_ops *ops,
2091 struct file *file, void *fh, void *arg)
2092{
2093 struct video_device *vfd = video_devdata(file);
2094 v4l2_std_id *p = arg;
77fa4e07 2095 int ret;
4b1e2e4d 2096
77fa4e07
SK		 2097 ret = v4l_enable_media_source(vfd);
2098 if (ret)
2099 return ret;
4b1e2e4d 2100 /*
1a2c6866
HV		 2101 * If no signal is detected, then the driver should return
2102 * V4L2_STD_UNKNOWN. Otherwise it should return tvnorms with
2103 * any standards that do not apply removed.
2104 *
4b1e2e4d
HV		 2105 * This means that tuners, audio and video decoders can join
2106 * their efforts to improve the standards detection.
2107 */
2108 *p = vfd->tvnorms;
2109 return ops->vidioc_querystd(file, fh, arg);
2110}
2111
2112static int v4l_s_hw_freq_seek(const struct v4l2_ioctl_ops *ops,
2113 struct file *file, void *fh, void *arg)
2114{
2115 struct video_device *vfd = video_devdata(file);
2116 struct v4l2_hw_freq_seek *p = arg;
2117 enum v4l2_tuner_type type;
77fa4e07 2118 int ret;
4b1e2e4d 2119
77fa4e07
SK		 2120 ret = v4l_enable_media_source(vfd);
2121 if (ret)
2122 return ret;
84099a28
AP		 2123 /* s_hw_freq_seek is not supported for SDR for now */
2124 if (vfd->vfl_type == VFL_TYPE_SDR)
2125 return -EINVAL;
2126
4b1e2e4d
HV		 2127 type = (vfd->vfl_type == VFL_TYPE_RADIO) ?
2128 V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV;
2129 if (p->type != type)
2130 return -EINVAL;
2131 return ops->vidioc_s_hw_freq_seek(file, fh, p);
2132}
2133
d04794da
HV		 2134static int v4l_s_fbuf(const struct v4l2_ioctl_ops *ops,
2135 struct file *file, void *fh, void *arg)
2136{
2137 struct v4l2_framebuffer *p = arg;
2138
2139 p->base = NULL;
2140 return ops->vidioc_s_fbuf(file, fh, p);
2141}
2142
737c097b
HV		 2143static int v4l_overlay(const struct v4l2_ioctl_ops *ops,
2144 struct file *file, void *fh, void *arg)
2145{
2146 return ops->vidioc_overlay(file, fh, *(unsigned int *)arg);
2147}
2148
eb3728ed
HV		 2149static int v4l_reqbufs(const struct v4l2_ioctl_ops *ops,
2150 struct file *file, void *fh, void *arg)
2151{
a3293a85 2152 struct video_device *vfd = video_devdata(file);
eb3728ed 2153 struct v4l2_requestbuffers *p = arg;
4b20259f 2154 int ret = check_fmt(file, p->type);
eb3728ed
HV		 2155
2156 if (ret)
2157 return ret;
129134e5 2158
0625b6b8 2159 memset_after(p, 0, flags);
129134e5 2160
a3293a85
BG		 2161 p->capabilities = 0;
2162 if (is_valid_ioctl(vfd, VIDIOC_REMOVE_BUFS))
2163 p->capabilities = V4L2_BUF_CAP_SUPPORTS_REMOVE_BUFS;
2164
eb3728ed
HV		 2165 return ops->vidioc_reqbufs(file, fh, p);
2166}
2167
2168static int v4l_querybuf(const struct v4l2_ioctl_ops *ops,
2169 struct file *file, void *fh, void *arg)
2170{
2171 struct v4l2_buffer *p = arg;
4b20259f 2172 int ret = check_fmt(file, p->type);
eb3728ed
HV		 2173
2174 return ret ? ret : ops->vidioc_querybuf(file, fh, p);
2175}
2176
2177static int v4l_qbuf(const struct v4l2_ioctl_ops *ops,
2178 struct file *file, void *fh, void *arg)
2179{
2180 struct v4l2_buffer *p = arg;
4b20259f 2181 int ret = check_fmt(file, p->type);
eb3728ed
HV		 2182
2183 return ret ? ret : ops->vidioc_qbuf(file, fh, p);
2184}
2185
2186static int v4l_dqbuf(const struct v4l2_ioctl_ops *ops,
2187 struct file *file, void *fh, void *arg)
2188{
2189 struct v4l2_buffer *p = arg;
4b20259f 2190 int ret = check_fmt(file, p->type);
eb3728ed
HV		 2191
2192 return ret ? ret : ops->vidioc_dqbuf(file, fh, p);
2193}
2194
2195static int v4l_create_bufs(const struct v4l2_ioctl_ops *ops,
2196 struct file *file, void *fh, void *arg)
2197{
a3293a85 2198 struct video_device *vfd = video_devdata(file);
eb3728ed 2199 struct v4l2_create_buffers *create = arg;
4b20259f 2200 int ret = check_fmt(file, create->format.type);
eb3728ed 2201
d52e2381
LP		 2202 if (ret)
2203 return ret;
2204
0625b6b8 2205 memset_after(create, 0, flags);
5d351251 2206
d52e2381
LP		 2207 v4l_sanitize_format(&create->format);
2208
a3293a85
BG		 2209 create->capabilities = 0;
2210 if (is_valid_ioctl(vfd, VIDIOC_REMOVE_BUFS))
2211 create->capabilities = V4L2_BUF_CAP_SUPPORTS_REMOVE_BUFS;
2212
d52e2381
LP		 2213 ret = ops->vidioc_create_bufs(file, fh, create);
2214
2215 if (create->format.type == V4L2_BUF_TYPE_VIDEO_CAPTURE ||
2216 create->format.type == V4L2_BUF_TYPE_VIDEO_OUTPUT)
2217 create->format.fmt.pix.priv = V4L2_PIX_FMT_PRIV_MAGIC;
2218
2219 return ret;
eb3728ed
HV		 2220}
2221
2222static int v4l_prepare_buf(const struct v4l2_ioctl_ops *ops,
2223 struct file *file, void *fh, void *arg)
2224{
2225 struct v4l2_buffer *b = arg;
4b20259f 2226 int ret = check_fmt(file, b->type);
eb3728ed
HV		 2227
2228 return ret ? ret : ops->vidioc_prepare_buf(file, fh, b);
2229}
2230
a3293a85
BG		 2231static int v4l_remove_bufs(const struct v4l2_ioctl_ops *ops,
2232 struct file *file, void *fh, void *arg)
2233{
2234 struct v4l2_remove_buffers *remove = arg;
2235
2236 if (ops->vidioc_remove_bufs)
2237 return ops->vidioc_remove_bufs(file, fh, remove);
2238
2239 return -ENOTTY;
2240}
2241
eb3728ed
HV		 2242static int v4l_g_parm(const struct v4l2_ioctl_ops *ops,
2243 struct file *file, void *fh, void *arg)
2244{
cd9d9377 2245 struct video_device *vfd = video_devdata(file);
eb3728ed
HV		 2246 struct v4l2_streamparm *p = arg;
2247 v4l2_std_id std;
4b20259f 2248 int ret = check_fmt(file, p->type);
eb3728ed
HV		 2249
2250 if (ret)
2251 return ret;
2252 if (ops->vidioc_g_parm)
2253 return ops->vidioc_g_parm(file, fh, p);
eb3728ed
HV		 2254 if (p->type != V4L2_BUF_TYPE_VIDEO_CAPTURE &&
2255 p->type != V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE)
2256 return -EINVAL;
cd9d9377
HV		 2257 if (vfd->device_caps & V4L2_CAP_READWRITE)
2258 p->parm.capture.readbuffers = 2;
ca371575 2259 ret = ops->vidioc_g_std(file, fh, &std);
eb3728ed 2260 if (ret == 0)
ca371575 2261 v4l2_video_std_frame_period(std, &p->parm.capture.timeperframe);
eb3728ed
HV		 2262 return ret;
2263}
2264
2265static int v4l_s_parm(const struct v4l2_ioctl_ops *ops,
2266 struct file *file, void *fh, void *arg)
2267{
2268 struct v4l2_streamparm *p = arg;
4b20259f 2269 int ret = check_fmt(file, p->type);
eb3728ed 2270
8a7c5594
HV		 2271 if (ret)
2272 return ret;
2273
4f62e840 2274 /* Note: extendedmode is never used in drivers */
8a7c5594
HV		 2275 if (V4L2_TYPE_IS_OUTPUT(p->type)) {
2276 memset(p->parm.output.reserved, 0,
2277 sizeof(p->parm.output.reserved));
2278 p->parm.output.extendedmode = 0;
2279 p->parm.output.outputmode &= V4L2_MODE_HIGHQUALITY;
2280 } else {
2281 memset(p->parm.capture.reserved, 0,
2282 sizeof(p->parm.capture.reserved));
4f62e840 2283 p->parm.capture.extendedmode = 0;
8a7c5594
HV		 2284 p->parm.capture.capturemode &= V4L2_MODE_HIGHQUALITY;
2285 }
2286 return ops->vidioc_s_parm(file, fh, p);
eb3728ed
HV		 2287}
2288
efbceecd
HV		 2289static int v4l_queryctrl(const struct v4l2_ioctl_ops *ops,
2290 struct file *file, void *fh, void *arg)
2291{
2292 struct video_device *vfd = video_devdata(file);
46108b41 2293 struct v4l2_query_ext_ctrl qec = {};
efbceecd 2294 struct v4l2_queryctrl *p = arg;
7a3ed2d9
HV		 2295 struct v4l2_fh *vfh =
2296 test_bit(V4L2_FL_USES_V4L2_FH, &vfd->flags) ? fh : NULL;
46108b41 2297 int ret;
efbceecd
HV		 2298
2299 if (vfh && vfh->ctrl_handler)
2300 return v4l2_queryctrl(vfh->ctrl_handler, p);
2301 if (vfd->ctrl_handler)
2302 return v4l2_queryctrl(vfd->ctrl_handler, p);
46108b41
RR		 2303 if (!ops->vidioc_query_ext_ctrl)
2304 return -ENOTTY;
2305
2306 /* Simulate query_ext_ctr using query_ctrl. */
2307 qec.id = p->id;
2308 ret = ops->vidioc_query_ext_ctrl(file, fh, &qec);
2309 if (ret)
2310 return ret;
6494d350
RR		 2311 v4l2_query_ext_ctrl_to_v4l2_queryctrl(p, &qec);
2312 return ret;
efbceecd
HV		 2313}
2314
e6bee368
HV		 2315static int v4l_query_ext_ctrl(const struct v4l2_ioctl_ops *ops,
2316 struct file *file, void *fh, void *arg)
2317{
2318 struct video_device *vfd = video_devdata(file);
2319 struct v4l2_query_ext_ctrl *p = arg;
2320 struct v4l2_fh *vfh =
2321 test_bit(V4L2_FL_USES_V4L2_FH, &vfd->flags) ? fh : NULL;
2322
2323 if (vfh && vfh->ctrl_handler)
2324 return v4l2_query_ext_ctrl(vfh->ctrl_handler, p);
2325 if (vfd->ctrl_handler)
2326 return v4l2_query_ext_ctrl(vfd->ctrl_handler, p);
2327 if (ops->vidioc_query_ext_ctrl)
2328 return ops->vidioc_query_ext_ctrl(file, fh, p);
2329 return -ENOTTY;
2330}
2331
efbceecd
HV		 2332static int v4l_querymenu(const struct v4l2_ioctl_ops *ops,
2333 struct file *file, void *fh, void *arg)
2334{
2335 struct video_device *vfd = video_devdata(file);
2336 struct v4l2_querymenu *p = arg;
7a3ed2d9
HV		 2337 struct v4l2_fh *vfh =
2338 test_bit(V4L2_FL_USES_V4L2_FH, &vfd->flags) ? fh : NULL;
efbceecd
HV		 2339
2340 if (vfh && vfh->ctrl_handler)
2341 return v4l2_querymenu(vfh->ctrl_handler, p);
2342 if (vfd->ctrl_handler)
2343 return v4l2_querymenu(vfd->ctrl_handler, p);
2344 if (ops->vidioc_querymenu)
2345 return ops->vidioc_querymenu(file, fh, p);
2346 return -ENOTTY;
2347}
2348
2349static int v4l_g_ctrl(const struct v4l2_ioctl_ops *ops,
2350 struct file *file, void *fh, void *arg)
2351{
2352 struct video_device *vfd = video_devdata(file);
2353 struct v4l2_control *p = arg;
7a3ed2d9
HV		 2354 struct v4l2_fh *vfh =
2355 test_bit(V4L2_FL_USES_V4L2_FH, &vfd->flags) ? fh : NULL;
efbceecd
HV		 2356 struct v4l2_ext_controls ctrls;
2357 struct v4l2_ext_control ctrl;
2358
2359 if (vfh && vfh->ctrl_handler)
2360 return v4l2_g_ctrl(vfh->ctrl_handler, p);
2361 if (vfd->ctrl_handler)
2362 return v4l2_g_ctrl(vfd->ctrl_handler, p);
efbceecd
HV		 2363 if (ops->vidioc_g_ext_ctrls == NULL)
2364 return -ENOTTY;
2365
0f8017be 2366 ctrls.which = V4L2_CTRL_ID2WHICH(p->id);
efbceecd
HV		 2367 ctrls.count = 1;
2368 ctrls.controls = &ctrl;
2369 ctrl.id = p->id;
2370 ctrl.value = p->value;
861f92cb 2371 if (check_ext_ctrls(&ctrls, VIDIOC_G_CTRL)) {
efbceecd
HV		 2372 int ret = ops->vidioc_g_ext_ctrls(file, fh, &ctrls);
2373
2374 if (ret == 0)
2375 p->value = ctrl.value;
2376 return ret;
2377 }
2378 return -EINVAL;
2379}
2380
2381static int v4l_s_ctrl(const struct v4l2_ioctl_ops *ops,
2382 struct file *file, void *fh, void *arg)
2383{
2384 struct video_device *vfd = video_devdata(file);
2385 struct v4l2_control *p = arg;
7a3ed2d9
HV		 2386 struct v4l2_fh *vfh =
2387 test_bit(V4L2_FL_USES_V4L2_FH, &vfd->flags) ? fh : NULL;
efbceecd
HV		 2388 struct v4l2_ext_controls ctrls;
2389 struct v4l2_ext_control ctrl;
c87ed935 2390 int ret;
efbceecd
HV		 2391
2392 if (vfh && vfh->ctrl_handler)
2393 return v4l2_s_ctrl(vfh, vfh->ctrl_handler, p);
2394 if (vfd->ctrl_handler)
2395 return v4l2_s_ctrl(NULL, vfd->ctrl_handler, p);
efbceecd
HV		 2396 if (ops->vidioc_s_ext_ctrls == NULL)
2397 return -ENOTTY;
2398
0f8017be 2399 ctrls.which = V4L2_CTRL_ID2WHICH(p->id);
efbceecd
HV		 2400 ctrls.count = 1;
2401 ctrls.controls = &ctrl;
2402 ctrl.id = p->id;
2403 ctrl.value = p->value;
c87ed935
RR		 2404 if (!check_ext_ctrls(&ctrls, VIDIOC_S_CTRL))
2405 return -EINVAL;
2406 ret = ops->vidioc_s_ext_ctrls(file, fh, &ctrls);
2407 p->value = ctrl.value;
2408 return ret;
efbceecd
HV		 2409}
2410
2411static int v4l_g_ext_ctrls(const struct v4l2_ioctl_ops *ops,
2412 struct file *file, void *fh, void *arg)
2413{
2414 struct video_device *vfd = video_devdata(file);
2415 struct v4l2_ext_controls *p = arg;
7a3ed2d9
HV		 2416 struct v4l2_fh *vfh =
2417 test_bit(V4L2_FL_USES_V4L2_FH, &vfd->flags) ? fh : NULL;
efbceecd
HV		 2418
2419 p->error_idx = p->count;
2420 if (vfh && vfh->ctrl_handler)
173f6eac
EG		 2421 return v4l2_g_ext_ctrls(vfh->ctrl_handler,
2422 vfd, vfd->v4l2_dev->mdev, p);
efbceecd 2423 if (vfd->ctrl_handler)
173f6eac
EG		 2424 return v4l2_g_ext_ctrls(vfd->ctrl_handler,
2425 vfd, vfd->v4l2_dev->mdev, p);
efbceecd
HV		 2426 if (ops->vidioc_g_ext_ctrls == NULL)
2427 return -ENOTTY;
861f92cb
RR		 2428 return check_ext_ctrls(p, VIDIOC_G_EXT_CTRLS) ?
2429 ops->vidioc_g_ext_ctrls(file, fh, p) : -EINVAL;
efbceecd
HV		 2430}
2431
2432static int v4l_s_ext_ctrls(const struct v4l2_ioctl_ops *ops,
2433 struct file *file, void *fh, void *arg)
2434{
2435 struct video_device *vfd = video_devdata(file);
2436 struct v4l2_ext_controls *p = arg;
7a3ed2d9
HV		 2437 struct v4l2_fh *vfh =
2438 test_bit(V4L2_FL_USES_V4L2_FH, &vfd->flags) ? fh : NULL;
efbceecd
HV		 2439
2440 p->error_idx = p->count;
2441 if (vfh && vfh->ctrl_handler)
173f6eac
EG		 2442 return v4l2_s_ext_ctrls(vfh, vfh->ctrl_handler,
2443 vfd, vfd->v4l2_dev->mdev, p);
efbceecd 2444 if (vfd->ctrl_handler)
173f6eac
EG		 2445 return v4l2_s_ext_ctrls(NULL, vfd->ctrl_handler,
2446 vfd, vfd->v4l2_dev->mdev, p);
efbceecd
HV		 2447 if (ops->vidioc_s_ext_ctrls == NULL)
2448 return -ENOTTY;
861f92cb
RR		 2449 return check_ext_ctrls(p, VIDIOC_S_EXT_CTRLS) ?
2450 ops->vidioc_s_ext_ctrls(file, fh, p) : -EINVAL;
efbceecd
HV		 2451}
2452
2453static int v4l_try_ext_ctrls(const struct v4l2_ioctl_ops *ops,
2454 struct file *file, void *fh, void *arg)
2455{
2456 struct video_device *vfd = video_devdata(file);
2457 struct v4l2_ext_controls *p = arg;
7a3ed2d9
HV		 2458 struct v4l2_fh *vfh =
2459 test_bit(V4L2_FL_USES_V4L2_FH, &vfd->flags) ? fh : NULL;
efbceecd
HV		 2460
2461 p->error_idx = p->count;
2462 if (vfh && vfh->ctrl_handler)
173f6eac
EG		 2463 return v4l2_try_ext_ctrls(vfh->ctrl_handler,
2464 vfd, vfd->v4l2_dev->mdev, p);
efbceecd 2465 if (vfd->ctrl_handler)
173f6eac
EG		 2466 return v4l2_try_ext_ctrls(vfd->ctrl_handler,
2467 vfd, vfd->v4l2_dev->mdev, p);
efbceecd
HV		 2468 if (ops->vidioc_try_ext_ctrls == NULL)
2469 return -ENOTTY;
861f92cb
RR		 2470 return check_ext_ctrls(p, VIDIOC_TRY_EXT_CTRLS) ?
2471 ops->vidioc_try_ext_ctrls(file, fh, p) : -EINVAL;
efbceecd
HV		 2472}
2473
eaec420f
HV		 2474/*
2475 * The selection API specified originally that the _MPLANE buffer types
2476 * shouldn't be used. The reasons for this are lost in the mists of time
2477 * (or just really crappy memories). Regardless, this is really annoying
2478 * for userspace. So to keep things simple we map _MPLANE buffer types
2479 * to their 'regular' counterparts before calling the driver. And we
2480 * restore it afterwards. This way applications can use either buffer
2481 * type and drivers don't need to check for both.
2482 */
2483static int v4l_g_selection(const struct v4l2_ioctl_ops *ops,
2484 struct file *file, void *fh, void *arg)
2485{
2486 struct v4l2_selection *p = arg;
2487 u32 old_type = p->type;
2488 int ret;
2489
2490 if (p->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE)
2491 p->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
2492 else if (p->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE)
2493 p->type = V4L2_BUF_TYPE_VIDEO_OUTPUT;
2494 ret = ops->vidioc_g_selection(file, fh, p);
2495 p->type = old_type;
2496 return ret;
2497}
2498
2499static int v4l_s_selection(const struct v4l2_ioctl_ops *ops,
2500 struct file *file, void *fh, void *arg)
2501{
2502 struct v4l2_selection *p = arg;
2503 u32 old_type = p->type;
2504 int ret;
2505
2506 if (p->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE)
2507 p->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
2508 else if (p->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE)
2509 p->type = V4L2_BUF_TYPE_VIDEO_OUTPUT;
2510 ret = ops->vidioc_s_selection(file, fh, p);
2511 p->type = old_type;
2512 return ret;
2513}
2514
d84f2d94
HV		 2515static int v4l_g_crop(const struct v4l2_ioctl_ops *ops,
2516 struct file *file, void *fh, void *arg)
2517{
8cbd94bd 2518 struct video_device *vfd = video_devdata(file);
d84f2d94
HV		 2519 struct v4l2_crop *p = arg;
2520 struct v4l2_selection s = {
2521 .type = p->type,
2522 };
2523 int ret;
2524
d84f2d94
HV		 2525 /* simulate capture crop using selection api */
2526
2527 /* crop means compose for output devices */
2528 if (V4L2_TYPE_IS_OUTPUT(p->type))
5b79da06 2529 s.target = V4L2_SEL_TGT_COMPOSE;
d84f2d94 2530 else
5b79da06 2531 s.target = V4L2_SEL_TGT_CROP;
d84f2d94 2532
8cbd94bd
HV		 2533 if (test_bit(V4L2_FL_QUIRK_INVERTED_CROP, &vfd->flags))
2534 s.target = s.target == V4L2_SEL_TGT_COMPOSE ?
2535 V4L2_SEL_TGT_CROP : V4L2_SEL_TGT_COMPOSE;
2536
eaec420f 2537 ret = v4l_g_selection(ops, file, fh, &s);
d84f2d94
HV		 2538
2539 /* copying results to old structure on success */
2540 if (!ret)
2541 p->c = s.r;
2542 return ret;
2543}
2544
2545static int v4l_s_crop(const struct v4l2_ioctl_ops *ops,
2546 struct file *file, void *fh, void *arg)
2547{
8cbd94bd 2548 struct video_device *vfd = video_devdata(file);
d84f2d94
HV		 2549 struct v4l2_crop *p = arg;
2550 struct v4l2_selection s = {
2551 .type = p->type,
2552 .r = p->c,
2553 };
2554
d84f2d94
HV		 2555 /* simulate capture crop using selection api */
2556
2557 /* crop means compose for output devices */
2558 if (V4L2_TYPE_IS_OUTPUT(p->type))
5b79da06 2559 s.target = V4L2_SEL_TGT_COMPOSE;
d84f2d94 2560 else
5b79da06 2561 s.target = V4L2_SEL_TGT_CROP;
d84f2d94 2562
8cbd94bd
HV		 2563 if (test_bit(V4L2_FL_QUIRK_INVERTED_CROP, &vfd->flags))
2564 s.target = s.target == V4L2_SEL_TGT_COMPOSE ?
2565 V4L2_SEL_TGT_CROP : V4L2_SEL_TGT_COMPOSE;
2566
eaec420f 2567 return v4l_s_selection(ops, file, fh, &s);
d84f2d94
HV		 2568}
2569
2570static int v4l_cropcap(const struct v4l2_ioctl_ops *ops,
2571 struct file *file, void *fh, void *arg)
2572{
8cbd94bd 2573 struct video_device *vfd = video_devdata(file);
d84f2d94 2574 struct v4l2_cropcap *p = arg;
95dd7b7e
HV		 2575 struct v4l2_selection s = { .type = p->type };
2576 int ret = 0;
d84f2d94 2577
95dd7b7e
HV		 2578 /* setting trivial pixelaspect */
2579 p->pixelaspect.numerator = 1;
2580 p->pixelaspect.denominator = 1;
d84f2d94 2581
5200ab6a
HV		 2582 if (s.type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE)
2583 s.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
2584 else if (s.type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE)
2585 s.type = V4L2_BUF_TYPE_VIDEO_OUTPUT;
2586
95dd7b7e
HV		 2587 /*
2588 * The determine_valid_ioctls() call already should ensure
2589 * that this can never happen, but just in case...
2590 */
5200ab6a 2591 if (WARN_ON(!ops->vidioc_g_selection))
95dd7b7e 2592 return -ENOTTY;
d84f2d94 2593
5200ab6a
HV		 2594 if (ops->vidioc_g_pixelaspect)
2595 ret = ops->vidioc_g_pixelaspect(file, fh, s.type,
2596 &p->pixelaspect);
d84f2d94 2597
95dd7b7e
HV		 2598 /*
2599 * Ignore ENOTTY or ENOIOCTLCMD error returns, just use the
2600 * square pixel aspect ratio in that case.
2601 */
2602 if (ret && ret != -ENOTTY && ret != -ENOIOCTLCMD)
2603 return ret;
d84f2d94 2604
95dd7b7e 2605 /* Use g_selection() to fill in the bounds and defrect rectangles */
9409945c 2606
95dd7b7e
HV		 2607 /* obtaining bounds */
2608 if (V4L2_TYPE_IS_OUTPUT(p->type))
2609 s.target = V4L2_SEL_TGT_COMPOSE_BOUNDS;
2610 else
2611 s.target = V4L2_SEL_TGT_CROP_BOUNDS;
2612
8cbd94bd
HV		 2613 if (test_bit(V4L2_FL_QUIRK_INVERTED_CROP, &vfd->flags))
2614 s.target = s.target == V4L2_SEL_TGT_COMPOSE_BOUNDS ?
2615 V4L2_SEL_TGT_CROP_BOUNDS : V4L2_SEL_TGT_COMPOSE_BOUNDS;
2616
eaec420f 2617 ret = v4l_g_selection(ops, file, fh, &s);
95dd7b7e
HV		 2618 if (ret)
2619 return ret;
2620 p->bounds = s.r;
2621
2622 /* obtaining defrect */
8cbd94bd 2623 if (s.target == V4L2_SEL_TGT_COMPOSE_BOUNDS)
95dd7b7e
HV		 2624 s.target = V4L2_SEL_TGT_COMPOSE_DEFAULT;
2625 else
2626 s.target = V4L2_SEL_TGT_CROP_DEFAULT;
2627
eaec420f 2628 ret = v4l_g_selection(ops, file, fh, &s);
95dd7b7e
HV		 2629 if (ret)
2630 return ret;
2631 p->defrect = s.r;
9409945c 2632
d84f2d94
HV		 2633 return 0;
2634}
2635
f16f77b0
HV		 2636static int v4l_log_status(const struct v4l2_ioctl_ops *ops,
2637 struct file *file, void *fh, void *arg)
2638{
2639 struct video_device *vfd = video_devdata(file);
2640 int ret;
2641
2642 if (vfd->v4l2_dev)
2643 pr_info("%s: ================= START STATUS =================\n",
2644 vfd->v4l2_dev->name);
2645 ret = ops->vidioc_log_status(file, fh);
2646 if (vfd->v4l2_dev)
2647 pr_info("%s: ================== END STATUS ==================\n",
2648 vfd->v4l2_dev->name);
2649 return ret;
2650}
2651
2652static int v4l_dbg_g_register(const struct v4l2_ioctl_ops *ops,
2653 struct file *file, void *fh, void *arg)
2654{
2655#ifdef CONFIG_VIDEO_ADV_DEBUG
2656 struct v4l2_dbg_register *p = arg;
79b0c640
HV		 2657 struct video_device *vfd = video_devdata(file);
2658 struct v4l2_subdev *sd;
2659 int idx = 0;
f16f77b0
HV		 2660
2661 if (!capable(CAP_SYS_ADMIN))
2662 return -EPERM;
3eef2510 2663 if (p->match.type == V4L2_CHIP_MATCH_SUBDEV) {
79b0c640
HV		 2664 if (vfd->v4l2_dev == NULL)
2665 return -EINVAL;
3eef2510
HV		 2666 v4l2_device_for_each_subdev(sd, vfd->v4l2_dev)
2667 if (p->match.addr == idx++)
79b0c640 2668 return v4l2_subdev_call(sd, core, g_register, p);
79b0c640
HV		 2669 return -EINVAL;
2670 }
191b79b0
HV		 2671 if (ops->vidioc_g_register && p->match.type == V4L2_CHIP_MATCH_BRIDGE &&
2672 (ops->vidioc_g_chip_info || p->match.addr == 0))
79b0c640
HV		 2673 return ops->vidioc_g_register(file, fh, p);
2674 return -EINVAL;
f16f77b0
HV		 2675#else
2676 return -ENOTTY;
2677#endif
2678}
2679
2680static int v4l_dbg_s_register(const struct v4l2_ioctl_ops *ops,
2681 struct file *file, void *fh, void *arg)
2682{
2683#ifdef CONFIG_VIDEO_ADV_DEBUG
977ba3b1 2684 const struct v4l2_dbg_register *p = arg;
79b0c640
HV		 2685 struct video_device *vfd = video_devdata(file);
2686 struct v4l2_subdev *sd;
2687 int idx = 0;
f16f77b0
HV		 2688
2689 if (!capable(CAP_SYS_ADMIN))
2690 return -EPERM;
3eef2510 2691 if (p->match.type == V4L2_CHIP_MATCH_SUBDEV) {
79b0c640
HV		 2692 if (vfd->v4l2_dev == NULL)
2693 return -EINVAL;
3eef2510
HV		 2694 v4l2_device_for_each_subdev(sd, vfd->v4l2_dev)
2695 if (p->match.addr == idx++)
79b0c640 2696 return v4l2_subdev_call(sd, core, s_register, p);
79b0c640
HV		 2697 return -EINVAL;
2698 }
191b79b0
HV		 2699 if (ops->vidioc_s_register && p->match.type == V4L2_CHIP_MATCH_BRIDGE &&
2700 (ops->vidioc_g_chip_info || p->match.addr == 0))
79b0c640
HV		 2701 return ops->vidioc_s_register(file, fh, p);
2702 return -EINVAL;
f16f77b0
HV		 2703#else
2704 return -ENOTTY;
2705#endif
2706}
2707
96b03d2a 2708static int v4l_dbg_g_chip_info(const struct v4l2_ioctl_ops *ops,
79b0c640
HV		 2709 struct file *file, void *fh, void *arg)
2710{
cd634f1b 2711#ifdef CONFIG_VIDEO_ADV_DEBUG
79b0c640 2712 struct video_device *vfd = video_devdata(file);
96b03d2a 2713 struct v4l2_dbg_chip_info *p = arg;
79b0c640
HV		 2714 struct v4l2_subdev *sd;
2715 int idx = 0;
2716
2717 switch (p->match.type) {
2718 case V4L2_CHIP_MATCH_BRIDGE:
79b0c640
HV		 2719 if (ops->vidioc_s_register)
2720 p->flags |= V4L2_CHIP_FL_WRITABLE;
2721 if (ops->vidioc_g_register)
2722 p->flags |= V4L2_CHIP_FL_READABLE;
c0decac1 2723 strscpy(p->name, vfd->v4l2_dev->name, sizeof(p->name));
96b03d2a
HV		 2724 if (ops->vidioc_g_chip_info)
2725 return ops->vidioc_g_chip_info(file, fh, arg);
0f0fe4b9
HV		 2726 if (p->match.addr)
2727 return -EINVAL;
79b0c640
HV		 2728 return 0;
2729
3eef2510 2730 case V4L2_CHIP_MATCH_SUBDEV:
79b0c640
HV		 2731 if (vfd->v4l2_dev == NULL)
2732 break;
2733 v4l2_device_for_each_subdev(sd, vfd->v4l2_dev) {
3eef2510
HV		 2734 if (p->match.addr != idx++)
2735 continue;
2736 if (sd->ops->core && sd->ops->core->s_register)
2737 p->flags |= V4L2_CHIP_FL_WRITABLE;
2738 if (sd->ops->core && sd->ops->core->g_register)
2739 p->flags |= V4L2_CHIP_FL_READABLE;
c0decac1 2740 strscpy(p->name, sd->name, sizeof(p->name));
3eef2510 2741 return 0;
79b0c640
HV		 2742 }
2743 break;
2744 }
2745 return -EINVAL;
cd634f1b
HV		 2746#else
2747 return -ENOTTY;
2748#endif
79b0c640
HV		 2749}
2750
458aa4a6
HV		 2751static int v4l_dqevent(const struct v4l2_ioctl_ops *ops,
2752 struct file *file, void *fh, void *arg)
2753{
2754 return v4l2_event_dequeue(fh, arg, file->f_flags & O_NONBLOCK);
2755}
2756
2757static int v4l_subscribe_event(const struct v4l2_ioctl_ops *ops,
2758 struct file *file, void *fh, void *arg)
2759{
2760 return ops->vidioc_subscribe_event(fh, arg);
2761}
2762
2763static int v4l_unsubscribe_event(const struct v4l2_ioctl_ops *ops,
2764 struct file *file, void *fh, void *arg)
2765{
2766 return ops->vidioc_unsubscribe_event(fh, arg);
2767}
2768
2769static int v4l_g_sliced_vbi_cap(const struct v4l2_ioctl_ops *ops,
2770 struct file *file, void *fh, void *arg)
2771{
2772 struct v4l2_sliced_vbi_cap *p = arg;
4b20259f
HV		 2773 int ret = check_fmt(file, p->type);
2774
2775 if (ret)
2776 return ret;
458aa4a6
HV		 2777
2778 /* Clear up to type, everything after type is zeroed already */
2779 memset(p, 0, offsetof(struct v4l2_sliced_vbi_cap, type));
2780
2781 return ops->vidioc_g_sliced_vbi_cap(file, fh, p);
2782}
2783
82b655bf
HV		 2784static int v4l_enum_freq_bands(const struct v4l2_ioctl_ops *ops,
2785 struct file *file, void *fh, void *arg)
2786{
2787 struct video_device *vfd = video_devdata(file);
2788 struct v4l2_frequency_band *p = arg;
2789 enum v4l2_tuner_type type;
2790 int err;
2791
84099a28 2792 if (vfd->vfl_type == VFL_TYPE_SDR) {
f3c3ecec 2793 if (p->type != V4L2_TUNER_SDR && p->type != V4L2_TUNER_RF)
84099a28
AP		 2794 return -EINVAL;
2795 type = p->type;
2796 } else {
2797 type = (vfd->vfl_type == VFL_TYPE_RADIO) ?
2798 V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV;
2799 if (type != p->type)
2800 return -EINVAL;
2801 }
a7f404af
HV		 2802 if (ops->vidioc_enum_freq_bands) {
2803 err = ops->vidioc_enum_freq_bands(file, fh, p);
2804 if (err != -ENOTTY)
2805 return err;
2806 }
73f35418 2807 if (is_valid_ioctl(vfd, VIDIOC_G_TUNER)) {
82b655bf
HV		 2808 struct v4l2_tuner t = {
2809 .index = p->tuner,
2810 .type = type,
2811 };
2812
aa4d9b53
HV		 2813 if (p->index)
2814 return -EINVAL;
82b655bf
HV		 2815 err = ops->vidioc_g_tuner(file, fh, &t);
2816 if (err)
2817 return err;
2818 p->capability = t.capability | V4L2_TUNER_CAP_FREQ_BANDS;
2819 p->rangelow = t.rangelow;
2820 p->rangehigh = t.rangehigh;
2821 p->modulation = (type == V4L2_TUNER_RADIO) ?
2822 V4L2_BAND_MODULATION_FM : V4L2_BAND_MODULATION_VSB;
2823 return 0;
2824 }
73f35418 2825 if (is_valid_ioctl(vfd, VIDIOC_G_MODULATOR)) {
82b655bf
HV		 2826 struct v4l2_modulator m = {
2827 .index = p->tuner,
2828 };
2829
2830 if (type != V4L2_TUNER_RADIO)
2831 return -EINVAL;
aa4d9b53
HV		 2832 if (p->index)
2833 return -EINVAL;
82b655bf
HV		 2834 err = ops->vidioc_g_modulator(file, fh, &m);
2835 if (err)
2836 return err;
2837 p->capability = m.capability | V4L2_TUNER_CAP_FREQ_BANDS;
2838 p->rangelow = m.rangelow;
2839 p->rangehigh = m.rangehigh;
fdc33c5f 2840 p->modulation = V4L2_BAND_MODULATION_FM;
82b655bf
HV		 2841 return 0;
2842 }
2843 return -ENOTTY;
2844}
2845
4839e6c2
HV		 2846struct v4l2_ioctl_info {
2847 unsigned int ioctl;
27cd2aba 2848 u32 flags;
4839e6c2 2849 const char * const name;
3ad3b7a2
ST		 2850 int (*func)(const struct v4l2_ioctl_ops *ops, struct file *file,
2851 void *fh, void *p);
86748f35 2852 void (*debug)(const void *arg, bool write_only);
4839e6c2
HV		 2853};
2854
2855/* This control needs a priority check */
043f77ed 2856#define INFO_FL_PRIO (1 << 0)
4839e6c2 2857/* This control can be valid if the filehandle passes a control handler. */
043f77ed 2858#define INFO_FL_CTRL (1 << 1)
5a5adf6b 2859/* Queuing ioctl */
3ad3b7a2 2860#define INFO_FL_QUEUE (1 << 2)
043f77ed 2861/* Always copy back result, even on error */
3ad3b7a2 2862#define INFO_FL_ALWAYS_COPY (1 << 3)
27cd2aba
HV		 2863/* Zero struct from after the field to the end */
2864#define INFO_FL_CLEAR(v4l2_struct, field) \
2865 ((offsetof(struct v4l2_struct, field) + \
c593642c 2866 sizeof_field(struct v4l2_struct, field)) << 16)
6e6a8b5a 2867#define INFO_FL_CLEAR_MASK (_IOC_SIZEMASK << 16)
4839e6c2 2868
3ad3b7a2
ST		 2869#define DEFINE_V4L_STUB_FUNC(_vidioc) \
2870 static int v4l_stub_ ## _vidioc( \
2871 const struct v4l2_ioctl_ops *ops, \
2872 struct file *file, void *fh, void *p) \
2873 { \
2874 return ops->vidioc_ ## _vidioc(file, fh, p); \
86748f35
HV		 2875 }
2876
3ad3b7a2
ST		 2877#define IOCTL_INFO(_ioctl, _func, _debug, _flags) \
2878 [_IOC_NR(_ioctl)] = { \
2879 .ioctl = _ioctl, \
2880 .flags = _flags, \
2881 .name = #_ioctl, \
2882 .func = _func, \
2883 .debug = _debug, \
86748f35
HV		 2884 }
2885
3ad3b7a2 2886DEFINE_V4L_STUB_FUNC(g_fbuf)
3ad3b7a2
ST		 2887DEFINE_V4L_STUB_FUNC(expbuf)
2888DEFINE_V4L_STUB_FUNC(g_std)
2889DEFINE_V4L_STUB_FUNC(g_audio)
2890DEFINE_V4L_STUB_FUNC(s_audio)
3ad3b7a2
ST		 2891DEFINE_V4L_STUB_FUNC(g_edid)
2892DEFINE_V4L_STUB_FUNC(s_edid)
3ad3b7a2
ST		 2893DEFINE_V4L_STUB_FUNC(g_audout)
2894DEFINE_V4L_STUB_FUNC(s_audout)
2895DEFINE_V4L_STUB_FUNC(g_jpegcomp)
2896DEFINE_V4L_STUB_FUNC(s_jpegcomp)
2897DEFINE_V4L_STUB_FUNC(enumaudio)
2898DEFINE_V4L_STUB_FUNC(enumaudout)
2899DEFINE_V4L_STUB_FUNC(enum_framesizes)
2900DEFINE_V4L_STUB_FUNC(enum_frameintervals)
2901DEFINE_V4L_STUB_FUNC(g_enc_index)
2902DEFINE_V4L_STUB_FUNC(encoder_cmd)
2903DEFINE_V4L_STUB_FUNC(try_encoder_cmd)
2904DEFINE_V4L_STUB_FUNC(decoder_cmd)
2905DEFINE_V4L_STUB_FUNC(try_decoder_cmd)
2906DEFINE_V4L_STUB_FUNC(s_dv_timings)
2907DEFINE_V4L_STUB_FUNC(g_dv_timings)
2908DEFINE_V4L_STUB_FUNC(enum_dv_timings)
2909DEFINE_V4L_STUB_FUNC(query_dv_timings)
2910DEFINE_V4L_STUB_FUNC(dv_timings_cap)
2911
7c91d0a4 2912static const struct v4l2_ioctl_info v4l2_ioctls[] = {
3ad3b7a2 2913 IOCTL_INFO(VIDIOC_QUERYCAP, v4l_querycap, v4l_print_querycap, 0),
e5b6b07a 2914 IOCTL_INFO(VIDIOC_ENUM_FMT, v4l_enum_fmt, v4l_print_fmtdesc, 0),
3ad3b7a2
ST		 2915 IOCTL_INFO(VIDIOC_G_FMT, v4l_g_fmt, v4l_print_format, 0),
2916 IOCTL_INFO(VIDIOC_S_FMT, v4l_s_fmt, v4l_print_format, INFO_FL_PRIO),
2917 IOCTL_INFO(VIDIOC_REQBUFS, v4l_reqbufs, v4l_print_requestbuffers, INFO_FL_PRIO | INFO_FL_QUEUE),
2918 IOCTL_INFO(VIDIOC_QUERYBUF, v4l_querybuf, v4l_print_buffer, INFO_FL_QUEUE | INFO_FL_CLEAR(v4l2_buffer, length)),
2919 IOCTL_INFO(VIDIOC_G_FBUF, v4l_stub_g_fbuf, v4l_print_framebuffer, 0),
d04794da 2920 IOCTL_INFO(VIDIOC_S_FBUF, v4l_s_fbuf, v4l_print_framebuffer, INFO_FL_PRIO),
3ad3b7a2
ST		 2921 IOCTL_INFO(VIDIOC_OVERLAY, v4l_overlay, v4l_print_u32, INFO_FL_PRIO),
2922 IOCTL_INFO(VIDIOC_QBUF, v4l_qbuf, v4l_print_buffer, INFO_FL_QUEUE),
2923 IOCTL_INFO(VIDIOC_EXPBUF, v4l_stub_expbuf, v4l_print_exportbuffer, INFO_FL_QUEUE | INFO_FL_CLEAR(v4l2_exportbuffer, flags)),
2924 IOCTL_INFO(VIDIOC_DQBUF, v4l_dqbuf, v4l_print_buffer, INFO_FL_QUEUE),
2925 IOCTL_INFO(VIDIOC_STREAMON, v4l_streamon, v4l_print_buftype, INFO_FL_PRIO | INFO_FL_QUEUE),
2926 IOCTL_INFO(VIDIOC_STREAMOFF, v4l_streamoff, v4l_print_buftype, INFO_FL_PRIO | INFO_FL_QUEUE),
2927 IOCTL_INFO(VIDIOC_G_PARM, v4l_g_parm, v4l_print_streamparm, INFO_FL_CLEAR(v4l2_streamparm, type)),
2928 IOCTL_INFO(VIDIOC_S_PARM, v4l_s_parm, v4l_print_streamparm, INFO_FL_PRIO),
2929 IOCTL_INFO(VIDIOC_G_STD, v4l_stub_g_std, v4l_print_std, 0),
2930 IOCTL_INFO(VIDIOC_S_STD, v4l_s_std, v4l_print_std, INFO_FL_PRIO),
2931 IOCTL_INFO(VIDIOC_ENUMSTD, v4l_enumstd, v4l_print_standard, INFO_FL_CLEAR(v4l2_standard, index)),
2932 IOCTL_INFO(VIDIOC_ENUMINPUT, v4l_enuminput, v4l_print_enuminput, INFO_FL_CLEAR(v4l2_input, index)),
2933 IOCTL_INFO(VIDIOC_G_CTRL, v4l_g_ctrl, v4l_print_control, INFO_FL_CTRL | INFO_FL_CLEAR(v4l2_control, id)),
2934 IOCTL_INFO(VIDIOC_S_CTRL, v4l_s_ctrl, v4l_print_control, INFO_FL_PRIO | INFO_FL_CTRL),
2935 IOCTL_INFO(VIDIOC_G_TUNER, v4l_g_tuner, v4l_print_tuner, INFO_FL_CLEAR(v4l2_tuner, index)),
2936 IOCTL_INFO(VIDIOC_S_TUNER, v4l_s_tuner, v4l_print_tuner, INFO_FL_PRIO),
2937 IOCTL_INFO(VIDIOC_G_AUDIO, v4l_stub_g_audio, v4l_print_audio, 0),
2938 IOCTL_INFO(VIDIOC_S_AUDIO, v4l_stub_s_audio, v4l_print_audio, INFO_FL_PRIO),
2939 IOCTL_INFO(VIDIOC_QUERYCTRL, v4l_queryctrl, v4l_print_queryctrl, INFO_FL_CTRL | INFO_FL_CLEAR(v4l2_queryctrl, id)),
2940 IOCTL_INFO(VIDIOC_QUERYMENU, v4l_querymenu, v4l_print_querymenu, INFO_FL_CTRL | INFO_FL_CLEAR(v4l2_querymenu, index)),
f645e625 2941 IOCTL_INFO(VIDIOC_G_INPUT, v4l_g_input, v4l_print_u32, 0),
3ad3b7a2
ST		 2942 IOCTL_INFO(VIDIOC_S_INPUT, v4l_s_input, v4l_print_u32, INFO_FL_PRIO),
2943 IOCTL_INFO(VIDIOC_G_EDID, v4l_stub_g_edid, v4l_print_edid, INFO_FL_ALWAYS_COPY),
2944 IOCTL_INFO(VIDIOC_S_EDID, v4l_stub_s_edid, v4l_print_edid, INFO_FL_PRIO | INFO_FL_ALWAYS_COPY),
f645e625 2945 IOCTL_INFO(VIDIOC_G_OUTPUT, v4l_g_output, v4l_print_u32, 0),
3ad3b7a2
ST		 2946 IOCTL_INFO(VIDIOC_S_OUTPUT, v4l_s_output, v4l_print_u32, INFO_FL_PRIO),
2947 IOCTL_INFO(VIDIOC_ENUMOUTPUT, v4l_enumoutput, v4l_print_enumoutput, INFO_FL_CLEAR(v4l2_output, index)),
2948 IOCTL_INFO(VIDIOC_G_AUDOUT, v4l_stub_g_audout, v4l_print_audioout, 0),
2949 IOCTL_INFO(VIDIOC_S_AUDOUT, v4l_stub_s_audout, v4l_print_audioout, INFO_FL_PRIO),
2950 IOCTL_INFO(VIDIOC_G_MODULATOR, v4l_g_modulator, v4l_print_modulator, INFO_FL_CLEAR(v4l2_modulator, index)),
2951 IOCTL_INFO(VIDIOC_S_MODULATOR, v4l_s_modulator, v4l_print_modulator, INFO_FL_PRIO),
2952 IOCTL_INFO(VIDIOC_G_FREQUENCY, v4l_g_frequency, v4l_print_frequency, INFO_FL_CLEAR(v4l2_frequency, tuner)),
2953 IOCTL_INFO(VIDIOC_S_FREQUENCY, v4l_s_frequency, v4l_print_frequency, INFO_FL_PRIO),
2954 IOCTL_INFO(VIDIOC_CROPCAP, v4l_cropcap, v4l_print_cropcap, INFO_FL_CLEAR(v4l2_cropcap, type)),
2955 IOCTL_INFO(VIDIOC_G_CROP, v4l_g_crop, v4l_print_crop, INFO_FL_CLEAR(v4l2_crop, type)),
2956 IOCTL_INFO(VIDIOC_S_CROP, v4l_s_crop, v4l_print_crop, INFO_FL_PRIO),
2957 IOCTL_INFO(VIDIOC_G_SELECTION, v4l_g_selection, v4l_print_selection, INFO_FL_CLEAR(v4l2_selection, r)),
2958 IOCTL_INFO(VIDIOC_S_SELECTION, v4l_s_selection, v4l_print_selection, INFO_FL_PRIO | INFO_FL_CLEAR(v4l2_selection, r)),
2959 IOCTL_INFO(VIDIOC_G_JPEGCOMP, v4l_stub_g_jpegcomp, v4l_print_jpegcompression, 0),
2960 IOCTL_INFO(VIDIOC_S_JPEGCOMP, v4l_stub_s_jpegcomp, v4l_print_jpegcompression, INFO_FL_PRIO),
2961 IOCTL_INFO(VIDIOC_QUERYSTD, v4l_querystd, v4l_print_std, 0),
2962 IOCTL_INFO(VIDIOC_TRY_FMT, v4l_try_fmt, v4l_print_format, 0),
2963 IOCTL_INFO(VIDIOC_ENUMAUDIO, v4l_stub_enumaudio, v4l_print_audio, INFO_FL_CLEAR(v4l2_audio, index)),
2964 IOCTL_INFO(VIDIOC_ENUMAUDOUT, v4l_stub_enumaudout, v4l_print_audioout, INFO_FL_CLEAR(v4l2_audioout, index)),
2965 IOCTL_INFO(VIDIOC_G_PRIORITY, v4l_g_priority, v4l_print_u32, 0),
2966 IOCTL_INFO(VIDIOC_S_PRIORITY, v4l_s_priority, v4l_print_u32, INFO_FL_PRIO),
2967 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)),
2968 IOCTL_INFO(VIDIOC_LOG_STATUS, v4l_log_status, v4l_print_newline, 0),
f0da34f3
HV		 2969 IOCTL_INFO(VIDIOC_G_EXT_CTRLS, v4l_g_ext_ctrls, v4l_print_ext_controls, INFO_FL_CTRL | INFO_FL_ALWAYS_COPY),
2970 IOCTL_INFO(VIDIOC_S_EXT_CTRLS, v4l_s_ext_ctrls, v4l_print_ext_controls, INFO_FL_PRIO | INFO_FL_CTRL | INFO_FL_ALWAYS_COPY),
2971 IOCTL_INFO(VIDIOC_TRY_EXT_CTRLS, v4l_try_ext_ctrls, v4l_print_ext_controls, INFO_FL_CTRL | INFO_FL_ALWAYS_COPY),
3ad3b7a2
ST		 2972 IOCTL_INFO(VIDIOC_ENUM_FRAMESIZES, v4l_stub_enum_framesizes, v4l_print_frmsizeenum, INFO_FL_CLEAR(v4l2_frmsizeenum, pixel_format)),
2973 IOCTL_INFO(VIDIOC_ENUM_FRAMEINTERVALS, v4l_stub_enum_frameintervals, v4l_print_frmivalenum, INFO_FL_CLEAR(v4l2_frmivalenum, height)),
2974 IOCTL_INFO(VIDIOC_G_ENC_INDEX, v4l_stub_g_enc_index, v4l_print_enc_idx, 0),
2975 IOCTL_INFO(VIDIOC_ENCODER_CMD, v4l_stub_encoder_cmd, v4l_print_encoder_cmd, INFO_FL_PRIO | INFO_FL_CLEAR(v4l2_encoder_cmd, flags)),
2976 IOCTL_INFO(VIDIOC_TRY_ENCODER_CMD, v4l_stub_try_encoder_cmd, v4l_print_encoder_cmd, INFO_FL_CLEAR(v4l2_encoder_cmd, flags)),
2977 IOCTL_INFO(VIDIOC_DECODER_CMD, v4l_stub_decoder_cmd, v4l_print_decoder_cmd, INFO_FL_PRIO),
2978 IOCTL_INFO(VIDIOC_TRY_DECODER_CMD, v4l_stub_try_decoder_cmd, v4l_print_decoder_cmd, 0),
2979 IOCTL_INFO(VIDIOC_DBG_S_REGISTER, v4l_dbg_s_register, v4l_print_dbg_register, 0),
2980 IOCTL_INFO(VIDIOC_DBG_G_REGISTER, v4l_dbg_g_register, v4l_print_dbg_register, 0),
2981 IOCTL_INFO(VIDIOC_S_HW_FREQ_SEEK, v4l_s_hw_freq_seek, v4l_print_hw_freq_seek, INFO_FL_PRIO),
2982 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)),
2983 IOCTL_INFO(VIDIOC_G_DV_TIMINGS, v4l_stub_g_dv_timings, v4l_print_dv_timings, 0),
2984 IOCTL_INFO(VIDIOC_DQEVENT, v4l_dqevent, v4l_print_event, 0),
2985 IOCTL_INFO(VIDIOC_SUBSCRIBE_EVENT, v4l_subscribe_event, v4l_print_event_subscription, 0),
2986 IOCTL_INFO(VIDIOC_UNSUBSCRIBE_EVENT, v4l_unsubscribe_event, v4l_print_event_subscription, 0),
2987 IOCTL_INFO(VIDIOC_CREATE_BUFS, v4l_create_bufs, v4l_print_create_buffers, INFO_FL_PRIO | INFO_FL_QUEUE),
2988 IOCTL_INFO(VIDIOC_PREPARE_BUF, v4l_prepare_buf, v4l_print_buffer, INFO_FL_QUEUE),
2989 IOCTL_INFO(VIDIOC_ENUM_DV_TIMINGS, v4l_stub_enum_dv_timings, v4l_print_enum_dv_timings, INFO_FL_CLEAR(v4l2_enum_dv_timings, pad)),
2990 IOCTL_INFO(VIDIOC_QUERY_DV_TIMINGS, v4l_stub_query_dv_timings, v4l_print_dv_timings, INFO_FL_ALWAYS_COPY),
2991 IOCTL_INFO(VIDIOC_DV_TIMINGS_CAP, v4l_stub_dv_timings_cap, v4l_print_dv_timings_cap, INFO_FL_CLEAR(v4l2_dv_timings_cap, pad)),
2992 IOCTL_INFO(VIDIOC_ENUM_FREQ_BANDS, v4l_enum_freq_bands, v4l_print_freq_band, 0),
2993 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)),
2994 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)),
a3293a85 2995 IOCTL_INFO(VIDIOC_REMOVE_BUFS, v4l_remove_bufs, v4l_print_remove_buffers, INFO_FL_PRIO | INFO_FL_QUEUE | INFO_FL_CLEAR(v4l2_remove_buffers, type)),
4839e6c2
HV		 2996};
2997#define V4L2_IOCTLS ARRAY_SIZE(v4l2_ioctls)
2998
73a11062 2999static bool v4l2_is_known_ioctl(unsigned int cmd)
4839e6c2
HV		 3000{
3001 if (_IOC_NR(cmd) >= V4L2_IOCTLS)
3002 return false;
3003 return v4l2_ioctls[_IOC_NR(cmd)].ioctl == cmd;
3004}
3005
73a11062 3006static struct mutex *v4l2_ioctl_get_lock(struct video_device *vdev,
d862bc08
HV		 3007 struct v4l2_fh *vfh, unsigned int cmd,
3008 void *arg)
5a5adf6b
HV		 3009{
3010 if (_IOC_NR(cmd) >= V4L2_IOCTLS)
3011 return vdev->lock;
d862bc08
HV		 3012 if (vfh && vfh->m2m_ctx &&
3013 (v4l2_ioctls[_IOC_NR(cmd)].flags & INFO_FL_QUEUE)) {
542a522d
EG		 3014 if (vfh->m2m_ctx->q_lock)
3015 return vfh->m2m_ctx->q_lock;
d862bc08 3016 }
5a5adf6b
HV		 3017 if (vdev->queue && vdev->queue->lock &&
3018 (v4l2_ioctls[_IOC_NR(cmd)].flags & INFO_FL_QUEUE))
3019 return vdev->queue->lock;
3020 return vdev->lock;
3021}
3022
4839e6c2
HV		 3023/* Common ioctl debug function. This function can be used by
3024 external ioctl messages as well as internal V4L ioctl */
4a085168 3025void v4l_printk_ioctl(const char *prefix, unsigned int cmd)
4839e6c2 3026{
86748f35 3027 const char *dir, *type;
4839e6c2 3028
4a085168
HV		 3029 if (prefix)
3030 printk(KERN_DEBUG "%s: ", prefix);
3031
4839e6c2
HV		 3032 switch (_IOC_TYPE(cmd)) {
3033 case 'd':
3034 type = "v4l2_int";
3035 break;
3036 case 'V':
6aa210d2 3037 if (!v4l2_is_known_ioctl(cmd)) {
4839e6c2
HV		 3038 type = "v4l2";
3039 break;
3040 }
86748f35 3041 pr_cont("%s", v4l2_ioctls[_IOC_NR(cmd)].name);
4839e6c2
HV		 3042 return;
3043 default:
3044 type = "unknown";
86748f35 3045 break;
4839e6c2
HV		 3046 }
3047
3048 switch (_IOC_DIR(cmd)) {
3049 case _IOC_NONE: dir = "--"; break;
3050 case _IOC_READ: dir = "r-"; break;
3051 case _IOC_WRITE: dir = "-w"; break;
3052 case _IOC_READ | _IOC_WRITE: dir = "rw"; break;
3053 default: dir = "*ERR*"; break;
3054 }
86748f35 3055 pr_cont("%s ioctl '%c', dir=%s, #%d (0x%08x)",
4839e6c2
HV		 3056 type, _IOC_TYPE(cmd), dir, _IOC_NR(cmd), cmd);
3057}
3058EXPORT_SYMBOL(v4l_printk_ioctl);
3059
069b7479 3060static long __video_do_ioctl(struct file *file,
35ea11ff
HV		 3061 unsigned int cmd, void *arg)
3062{
3063 struct video_device *vfd = video_devdata(file);
cc6eddcd 3064 struct mutex *req_queue_lock = NULL;
73a11062 3065 struct mutex *lock; /* ioctl serialization mutex */
a399810c 3066 const struct v4l2_ioctl_ops *ops = vfd->ioctl_ops;
86748f35
HV		 3067 bool write_only = false;
3068 struct v4l2_ioctl_info default_info;
3069 const struct v4l2_ioctl_info *info;
d5fbf32f 3070 void *fh = file->private_data;
99cd47bc 3071 struct v4l2_fh *vfh = NULL;
17028cdb 3072 int dev_debug = vfd->dev_debug;
9190d191 3073 long ret = -ENOTTY;
35ea11ff 3074
6a717883 3075 if (ops == NULL) {
4a085168
HV		 3076 pr_warn("%s: has no ioctl_ops.\n",
3077 video_device_node_name(vfd));
9190d191 3078 return ret;
6a717883
HV		 3079 }
3080
b7284bb0 3081 if (test_bit(V4L2_FL_USES_V4L2_FH, &vfd->flags))
99cd47bc
HV		 3082 vfh = file->private_data;
3083
cc6eddcd
HV		 3084 /*
3085 * We need to serialize streamon/off with queueing new requests.
3086 * These ioctls may trigger the cancellation of a streaming
3087 * operation, and that should not be mixed with queueing a new
3088 * request at the same time.
3089 */
3090 if (v4l2_device_supports_requests(vfd->v4l2_dev) &&
3091 (cmd == VIDIOC_STREAMON || cmd == VIDIOC_STREAMOFF)) {
3092 req_queue_lock = &vfd->v4l2_dev->mdev->req_queue_mutex;
3093
3094 if (mutex_lock_interruptible(req_queue_lock))
3095 return -ERESTARTSYS;
3096 }
3097
d862bc08 3098 lock = v4l2_ioctl_get_lock(vfd, vfh, cmd, arg);
73a11062 3099
cc6eddcd
HV		 3100 if (lock && mutex_lock_interruptible(lock)) {
3101 if (req_queue_lock)
3102 mutex_unlock(req_queue_lock);
73a11062 3103 return -ERESTARTSYS;
cc6eddcd 3104 }
73a11062
HV		 3105
3106 if (!video_is_registered(vfd)) {
3107 ret = -ENODEV;
3108 goto unlock;
3109 }
3110
48ea0be0 3111 if (v4l2_is_known_ioctl(cmd)) {
86748f35 3112 info = &v4l2_ioctls[_IOC_NR(cmd)];
48ea0be0 3113
c464c2e3 3114 if (!is_valid_ioctl(vfd, cmd) &&
48ea0be0 3115 !((info->flags & INFO_FL_CTRL) && vfh && vfh->ctrl_handler))
86748f35 3116 goto done;
4b902fec 3117
b7284bb0 3118 if (vfh && (info->flags & INFO_FL_PRIO)) {
4b902fec
HV		 3119 ret = v4l2_prio_check(vfd->prio, vfh->prio);
3120 if (ret)
86748f35 3121 goto done;
4b902fec 3122 }
86748f35
HV		 3123 } else {
3124 default_info.ioctl = cmd;
3125 default_info.flags = 0;
f18d8e07 3126 default_info.debug = v4l_print_default;
86748f35 3127 info = &default_info;
48ea0be0
HV		 3128 }
3129
86748f35 3130 write_only = _IOC_DIR(cmd) == _IOC_WRITE;
3ad3b7a2
ST		 3131 if (info != &default_info) {
3132 ret = info->func(ops, file, fh, arg);
f18d8e07
HV		 3133 } else if (!ops->vidioc_default) {
3134 ret = -ENOTTY;
3135 } else {
3136 ret = ops->vidioc_default(file, fh,
b7284bb0 3137 vfh ? v4l2_prio_check(vfd->prio, vfh->prio) >= 0 : 0,
f18d8e07 3138 cmd, arg);
48ea0be0 3139 }
99cd47bc 3140
86748f35 3141done:
17028cdb
HV		 3142 if (dev_debug & (V4L2_DEV_DEBUG_IOCTL | V4L2_DEV_DEBUG_IOCTL_ARG)) {
3143 if (!(dev_debug & V4L2_DEV_DEBUG_STREAMING) &&
3144 (cmd == VIDIOC_QBUF || cmd == VIDIOC_DQBUF))
5983d3bc 3145 goto unlock;
17028cdb 3146
4a085168 3147 v4l_printk_ioctl(video_device_node_name(vfd), cmd);
86748f35 3148 if (ret < 0)
505d04bd 3149 pr_cont(": error %ld", ret);
17028cdb 3150 if (!(dev_debug & V4L2_DEV_DEBUG_IOCTL_ARG))
86748f35 3151 pr_cont("\n");
86748f35
HV		 3152 else if (_IOC_DIR(cmd) == _IOC_NONE)
3153 info->debug(arg, write_only);
3154 else {
3155 pr_cont(": ");
3156 info->debug(arg, write_only);
35ea11ff
HV		 3157 }
3158 }
3159
73a11062
HV		 3160unlock:
3161 if (lock)
3162 mutex_unlock(lock);
cc6eddcd
HV		 3163 if (req_queue_lock)
3164 mutex_unlock(req_queue_lock);
35ea11ff
HV		 3165 return ret;
3166}
3167
d14e6d76 3168static int check_array_args(unsigned int cmd, void *parg, size_t *array_size,
ba2d35c1 3169 void __user **user_ptr, void ***kernel_ptr)
d14e6d76
PO		 3170{
3171 int ret = 0;
3172
3173 switch (cmd) {
96b1a702 3174 case VIDIOC_PREPARE_BUF:
d14e6d76
PO		 3175 case VIDIOC_QUERYBUF:
3176 case VIDIOC_QBUF:
3177 case VIDIOC_DQBUF: {
3178 struct v4l2_buffer *buf = parg;
3179
3180 if (V4L2_TYPE_IS_MULTIPLANAR(buf->type) && buf->length > 0) {
3181 if (buf->length > VIDEO_MAX_PLANES) {
3182 ret = -EINVAL;
3183 break;
3184 }
3185 *user_ptr = (void __user *)buf->m.planes;
ba2d35c1 3186 *kernel_ptr = (void **)&buf->m.planes;
d14e6d76
PO		 3187 *array_size = sizeof(struct v4l2_plane) * buf->length;
3188 ret = 1;
3189 }
3190 break;
3191 }
3192
dd519bb3
HV		 3193 case VIDIOC_G_EDID:
3194 case VIDIOC_S_EDID: {
3195 struct v4l2_edid *edid = parg;
ed45ce2c
HV		 3196
3197 if (edid->blocks) {
1b8b10cc
HV		 3198 if (edid->blocks > 256) {
3199 ret = -EINVAL;
3200 break;
3201 }
ed45ce2c 3202 *user_ptr = (void __user *)edid->edid;
ba2d35c1 3203 *kernel_ptr = (void **)&edid->edid;
ed45ce2c
HV		 3204 *array_size = edid->blocks * 128;
3205 ret = 1;
3206 }
3207 break;
3208 }
3209
d14e6d76
PO		 3210 case VIDIOC_S_EXT_CTRLS:
3211 case VIDIOC_G_EXT_CTRLS:
3212 case VIDIOC_TRY_EXT_CTRLS: {
3213 struct v4l2_ext_controls *ctrls = parg;
3214
3215 if (ctrls->count != 0) {
6c06108b
DC		 3216 if (ctrls->count > V4L2_CID_MAX_CTRLS) {
3217 ret = -EINVAL;
3218 break;
3219 }
d14e6d76 3220 *user_ptr = (void __user *)ctrls->controls;
ba2d35c1 3221 *kernel_ptr = (void **)&ctrls->controls;
d14e6d76
PO		 3222 *array_size = sizeof(struct v4l2_ext_control)
3223 * ctrls->count;
3224 ret = 1;
3225 }
3226 break;
3227 }
a418bb3f
LP		 3228
3229 case VIDIOC_SUBDEV_G_ROUTING:
3230 case VIDIOC_SUBDEV_S_ROUTING: {
3231 struct v4l2_subdev_routing *routing = parg;
3232
83a22a07 3233 if (routing->len_routes > 256)
a418bb3f
LP		 3234 return -E2BIG;
3235
3236 *user_ptr = u64_to_user_ptr(routing->routes);
3237 *kernel_ptr = (void **)&routing->routes;
3238 *array_size = sizeof(struct v4l2_subdev_route)
83a22a07 3239 * routing->len_routes;
a418bb3f
LP		 3240 ret = 1;
3241 break;
3242 }
d14e6d76
PO		 3243 }
3244
3245 return ret;
3246}
3247
c8ef1a60
AB		 3248static unsigned int video_translate_cmd(unsigned int cmd)
3249{
c344f07a 3250#if !defined(CONFIG_64BIT) && defined(CONFIG_COMPAT_32BIT_TIME)
1a6c0b36 3251 switch (cmd) {
1a6c0b36
AB		 3252 case VIDIOC_DQEVENT_TIME32:
3253 return VIDIOC_DQEVENT;
577c89b0
AB		 3254 case VIDIOC_QUERYBUF_TIME32:
3255 return VIDIOC_QUERYBUF;
3256 case VIDIOC_QBUF_TIME32:
3257 return VIDIOC_QBUF;
3258 case VIDIOC_DQBUF_TIME32:
3259 return VIDIOC_DQBUF;
3260 case VIDIOC_PREPARE_BUF_TIME32:
3261 return VIDIOC_PREPARE_BUF;
1a6c0b36 3262 }
c344f07a 3263#endif
8dbcc3fa
AB		 3264 if (in_compat_syscall())
3265 return v4l2_compat_translate_cmd(cmd);
1a6c0b36 3266
c8ef1a60
AB		 3267 return cmd;
3268}
3269
8dbcc3fa
AB		 3270static int video_get_user(void __user *arg, void *parg,
3271 unsigned int real_cmd, unsigned int cmd,
c8ef1a60
AB		 3272 bool *always_copy)
3273{
8dbcc3fa
AB		 3274 unsigned int n = _IOC_SIZE(real_cmd);
3275 int err = 0;
c8ef1a60
AB		 3276
3277 if (!(_IOC_DIR(cmd) & _IOC_WRITE)) {
3278 /* read-only ioctl */
3279 memset(parg, 0, n);
3280 return 0;
3281 }
3282
8dbcc3fa
AB		 3283 /*
3284 * In some cases, only a few fields are used as input,
3285 * i.e. when the app sets "index" and then the driver
3286 * fills in the rest of the structure for the thing
3287 * with that index. We only need to copy up the first
3288 * non-input field.
3289 */
3290 if (v4l2_is_known_ioctl(real_cmd)) {
3291 u32 flags = v4l2_ioctls[_IOC_NR(real_cmd)].flags;
577c89b0 3292
8dbcc3fa
AB		 3293 if (flags & INFO_FL_CLEAR_MASK)
3294 n = (flags & INFO_FL_CLEAR_MASK) >> 16;
3295 *always_copy = flags & INFO_FL_ALWAYS_COPY;
577c89b0 3296 }
c8ef1a60 3297
8dbcc3fa 3298 if (cmd == real_cmd) {
c8ef1a60 3299 if (copy_from_user(parg, (void __user *)arg, n))
8dbcc3fa
AB		 3300 err = -EFAULT;
3301 } else if (in_compat_syscall()) {
7b53cca7 3302 memset(parg, 0, n);
8dbcc3fa
AB		 3303 err = v4l2_compat_get_user(arg, parg, cmd);
3304 } else {
7b53cca7 3305 memset(parg, 0, n);
c344f07a 3306#if !defined(CONFIG_64BIT) && defined(CONFIG_COMPAT_32BIT_TIME)
8dbcc3fa 3307 switch (cmd) {
8dbcc3fa
AB		 3308 case VIDIOC_QUERYBUF_TIME32:
3309 case VIDIOC_QBUF_TIME32:
3310 case VIDIOC_DQBUF_TIME32:
3311 case VIDIOC_PREPARE_BUF_TIME32: {
3312 struct v4l2_buffer_time32 vb32;
3313 struct v4l2_buffer *vb = parg;
3314
3315 if (copy_from_user(&vb32, arg, sizeof(vb32)))
3316 return -EFAULT;
3317
3318 *vb = (struct v4l2_buffer) {
3319 .index = vb32.index,
e84c8932
AB		 3320 .type = vb32.type,
3321 .bytesused = vb32.bytesused,
3322 .flags = vb32.flags,
3323 .field = vb32.field,
3324 .timestamp.tv_sec = vb32.timestamp.tv_sec,
3325 .timestamp.tv_usec = vb32.timestamp.tv_usec,
3326 .timecode = vb32.timecode,
3327 .sequence = vb32.sequence,
3328 .memory = vb32.memory,
3329 .m.userptr = vb32.m.userptr,
3330 .length = vb32.length,
3331 .request_fd = vb32.request_fd,
8dbcc3fa
AB		 3332 };
3333 break;
3334 }
8dbcc3fa 3335 }
c344f07a 3336#endif
c8ef1a60
AB		 3337 }
3338
8dbcc3fa
AB		 3339 /* zero out anything we don't copy from userspace */
3340 if (!err && n < _IOC_SIZE(real_cmd))
3341 memset((u8 *)parg + n, 0, _IOC_SIZE(real_cmd) - n);
3342 return err;
c8ef1a60
AB		 3343}
3344
8dbcc3fa
AB		 3345static int video_put_user(void __user *arg, void *parg,
3346 unsigned int real_cmd, unsigned int cmd)
c8ef1a60
AB		 3347{
3348 if (!(_IOC_DIR(cmd) & _IOC_READ))
3349 return 0;
3350
8dbcc3fa
AB		 3351 if (cmd == real_cmd) {
3352 /* Copy results into user buffer */
3353 if (copy_to_user(arg, parg, _IOC_SIZE(cmd)))
3354 return -EFAULT;
3355 return 0;
3356 }
3357
3358 if (in_compat_syscall())
3359 return v4l2_compat_put_user(arg, parg, cmd);
3360
c344f07a 3361#if !defined(CONFIG_64BIT) && defined(CONFIG_COMPAT_32BIT_TIME)
c8ef1a60 3362 switch (cmd) {
1a6c0b36
AB		 3363 case VIDIOC_DQEVENT_TIME32: {
3364 struct v4l2_event *ev = parg;
4ffb879e
PY		 3365 struct v4l2_event_time32 ev32;
3366
3367 memset(&ev32, 0, sizeof(ev32));
3368
3369 ev32.type = ev->type;
3370 ev32.pending = ev->pending;
3371 ev32.sequence = ev->sequence;
3372 ev32.timestamp.tv_sec = ev->timestamp.tv_sec;
3373 ev32.timestamp.tv_nsec = ev->timestamp.tv_nsec;
3374 ev32.id = ev->id;
1a6c0b36
AB		 3375
3376 memcpy(&ev32.u, &ev->u, sizeof(ev->u));
3377 memcpy(&ev32.reserved, &ev->reserved, sizeof(ev->reserved));
3378
3379 if (copy_to_user(arg, &ev32, sizeof(ev32)))
3380 return -EFAULT;
3381 break;
3382 }
577c89b0
AB		 3383 case VIDIOC_QUERYBUF_TIME32:
3384 case VIDIOC_QBUF_TIME32:
3385 case VIDIOC_DQBUF_TIME32:
3386 case VIDIOC_PREPARE_BUF_TIME32: {
3387 struct v4l2_buffer *vb = parg;
4ffb879e
PY		 3388 struct v4l2_buffer_time32 vb32;
3389
3390 memset(&vb32, 0, sizeof(vb32));
3391
3392 vb32.index = vb->index;
3393 vb32.type = vb->type;
3394 vb32.bytesused = vb->bytesused;
3395 vb32.flags = vb->flags;
3396 vb32.field = vb->field;
3397 vb32.timestamp.tv_sec = vb->timestamp.tv_sec;
3398 vb32.timestamp.tv_usec = vb->timestamp.tv_usec;
3399 vb32.timecode = vb->timecode;
3400 vb32.sequence = vb->sequence;
3401 vb32.memory = vb->memory;
3402 vb32.m.userptr = vb->m.userptr;
3403 vb32.length = vb->length;
3404 vb32.request_fd = vb->request_fd;
577c89b0
AB		 3405
3406 if (copy_to_user(arg, &vb32, sizeof(vb32)))
3407 return -EFAULT;
3408 break;
3409 }
c8ef1a60 3410 }
c344f07a 3411#endif
c8ef1a60
AB		 3412
3413 return 0;
3414}
3415
fc0a8079 3416long
c8ef1a60 3417video_usercopy(struct file *file, unsigned int orig_cmd, unsigned long arg,
fc0a8079 3418 v4l2_kioctl func)
35ea11ff
HV		 3419{
3420 char sbuf[128];
fb18802a 3421 void *mbuf = NULL, *array_buf = NULL;
1d94aa36 3422 void *parg = (void *)arg;
069b7479 3423 long err = -EINVAL;
d14e6d76 3424 bool has_array_args;
043f77ed 3425 bool always_copy = false;
d14e6d76 3426 size_t array_size = 0;
35ea11ff 3427 void __user *user_ptr = NULL;
d14e6d76 3428 void **kernel_ptr = NULL;
c8ef1a60 3429 unsigned int cmd = video_translate_cmd(orig_cmd);
f8a695c4 3430 const size_t ioc_size = _IOC_SIZE(cmd);
35ea11ff 3431
35ea11ff 3432 /* Copy arguments into temp kernel buffer */
337f9d20 3433 if (_IOC_DIR(cmd) != _IOC_NONE) {
f8a695c4 3434 if (ioc_size <= sizeof(sbuf)) {
35ea11ff
HV		 3435 parg = sbuf;
3436 } else {
3437 /* too big to allocate from stack */
62a12551 3438 mbuf = kmalloc(ioc_size, GFP_KERNEL);
35ea11ff
HV		 3439 if (NULL == mbuf)
3440 return -ENOMEM;
3441 parg = mbuf;
3442 }
3443
8dbcc3fa
AB		 3444 err = video_get_user((void __user *)arg, parg, cmd,
3445 orig_cmd, &always_copy);
1dc8b65c
AB		 3446 if (err)
3447 goto out;
35ea11ff
HV		 3448 }
3449
d14e6d76
PO		 3450 err = check_array_args(cmd, parg, &array_size, &user_ptr, &kernel_ptr);
3451 if (err < 0)
3452 goto out;
3453 has_array_args = err;
35ea11ff 3454
d14e6d76 3455 if (has_array_args) {
fb18802a 3456 array_buf = kvmalloc(array_size, GFP_KERNEL);
d14e6d76 3457 err = -ENOMEM;
fb18802a 3458 if (array_buf == NULL)
f0da34f3 3459 goto out;
8dbcc3fa 3460 if (in_compat_syscall())
fb18802a
SA		 3461 err = v4l2_compat_get_array_args(file, array_buf,
3462 user_ptr, array_size,
3463 orig_cmd, parg);
8dbcc3fa 3464 else
fb18802a 3465 err = copy_from_user(array_buf, user_ptr, array_size) ?
8dbcc3fa
AB		 3466 -EFAULT : 0;
3467 if (err)
f0da34f3 3468 goto out;
fb18802a 3469 *kernel_ptr = array_buf;
35ea11ff
HV		 3470 }
3471
3472 /* Handles IOCTL */
fc0a8079 3473 err = func(file, cmd, parg);
181a4a2d 3474 if (err == -ENOTTY || err == -ENOIOCTLCMD) {
02bbb814 3475 err = -ENOTTY;
181a4a2d
HV		 3476 goto out;
3477 }
3478
aa32f4c0
HV		 3479 if (err == 0) {
3480 if (cmd == VIDIOC_DQBUF)
3481 trace_v4l2_dqbuf(video_devdata(file)->minor, parg);
3482 else if (cmd == VIDIOC_QBUF)
3483 trace_v4l2_qbuf(video_devdata(file)->minor, parg);
3484 }
35ea11ff 3485
f0da34f3
HV		 3486 /*
3487 * Some ioctls can return an error, but still have valid
3488 * results that must be returned.
a418bb3f
LP		 3489 *
3490 * FIXME: subdev IOCTLS are partially handled here and partially in
3491 * v4l2-subdev.c and the 'always_copy' flag can only be set for IOCTLS
3492 * defined here as part of the 'v4l2_ioctls' array. As
38c84932
SA		 3493 * VIDIOC_SUBDEV_[GS]_ROUTING needs to return results to applications
3494 * even in case of failure, but it is not defined here as part of the
a418bb3f 3495 * 'v4l2_ioctls' array, insert an ad-hoc check to address that.
f0da34f3 3496 */
38c84932
SA		 3497 if (cmd == VIDIOC_SUBDEV_G_ROUTING || cmd == VIDIOC_SUBDEV_S_ROUTING)
3498 always_copy = true;
3499
3500 if (err < 0 && !always_copy)
f0da34f3
HV		 3501 goto out;
3502
d14e6d76 3503 if (has_array_args) {
ba2d35c1 3504 *kernel_ptr = (void __force *)user_ptr;
8dbcc3fa
AB		 3505 if (in_compat_syscall()) {
3506 int put_err;
3507
fb18802a
SA		 3508 put_err = v4l2_compat_put_array_args(file, user_ptr,
3509 array_buf,
3510 array_size,
3511 orig_cmd, parg);
8dbcc3fa
AB		 3512 if (put_err)
3513 err = put_err;
fb18802a 3514 } else if (copy_to_user(user_ptr, array_buf, array_size)) {
35ea11ff 3515 err = -EFAULT;
8dbcc3fa 3516 }
35ea11ff 3517 }
35ea11ff 3518
8dbcc3fa 3519 if (video_put_user((void __user *)arg, parg, cmd, orig_cmd))
c8ef1a60 3520 err = -EFAULT;
35ea11ff 3521out:
fb18802a 3522 kvfree(array_buf);
62a12551 3523 kfree(mbuf);
35ea11ff
HV		 3524 return err;
3525}
fc0a8079
LP		 3526
3527long video_ioctl2(struct file *file,
3528 unsigned int cmd, unsigned long arg)
3529{
3530 return video_usercopy(file, cmd, arg, __video_do_ioctl);
3531}
8a522c91 3532EXPORT_SYMBOL(video_ioctl2);
Linux 6.x block layer and io_uring tree(s)