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[mirror_ubuntu-bionic-kernel.git] / drivers / media / v4l2-core / v4l2-ioctl.c
CommitLineData
35ea11ff
HV		 1/*
2 * Video capture interface for Linux version 2
3 *
4 * A generic framework to process V4L2 ioctl commands.
5 *
6 * This program is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU General Public License
8 * as published by the Free Software Foundation; either version
9 * 2 of the License, or (at your option) any later version.
10 *
d9b01449 11 * Authors: Alan Cox, <alan@lxorguk.ukuu.org.uk> (version 1)
35ea11ff
HV		 12 * Mauro Carvalho Chehab <mchehab@infradead.org> (version 2)
13 */
14
758d90e1 15#include <linux/mm.h>
35ea11ff 16#include <linux/module.h>
5a0e3ad6 17#include <linux/slab.h>
35ea11ff
HV		 18#include <linux/types.h>
19#include <linux/kernel.h>
ae6db515 20#include <linux/version.h>
35ea11ff 21
35ea11ff
HV		 22#include <linux/videodev2.h>
23
35ea11ff
HV		 24#include <media/v4l2-common.h>
25#include <media/v4l2-ioctl.h>
11bbc1ca 26#include <media/v4l2-ctrls.h>
d3d7c963
SA		 27#include <media/v4l2-fh.h>
28#include <media/v4l2-event.h>
99cd47bc 29#include <media/v4l2-device.h>
c139990e 30#include <media/videobuf2-v4l2.h>
77fa4e07 31#include <media/v4l2-mc.h>
35ea11ff 32
aa32f4c0
HV		 33#include <trace/events/v4l2.h>
34
25985edc 35/* Zero out the end of the struct pointed to by p. Everything after, but
7ecc0cf9
TP		 36 * not including, the specified field is cleared. */
37#define CLEAR_AFTER_FIELD(p, field) \
38 memset((u8 *)(p) + offsetof(typeof(*(p)), field) + sizeof((p)->field), \
39 0, sizeof(*(p)) - offsetof(typeof(*(p)), field) - sizeof((p)->field))
40
73f35418
HV		 41#define is_valid_ioctl(vfd, cmd) test_bit(_IOC_NR(cmd), (vfd)->valid_ioctls)
42
35ea11ff
HV		 43struct std_descr {
44 v4l2_std_id std;
45 const char *descr;
46};
47
48static const struct std_descr standards[] = {
49 { V4L2_STD_NTSC, "NTSC" },
50 { V4L2_STD_NTSC_M, "NTSC-M" },
51 { V4L2_STD_NTSC_M_JP, "NTSC-M-JP" },
52 { V4L2_STD_NTSC_M_KR, "NTSC-M-KR" },
53 { V4L2_STD_NTSC_443, "NTSC-443" },
54 { V4L2_STD_PAL, "PAL" },
55 { V4L2_STD_PAL_BG, "PAL-BG" },
56 { V4L2_STD_PAL_B, "PAL-B" },
57 { V4L2_STD_PAL_B1, "PAL-B1" },
58 { V4L2_STD_PAL_G, "PAL-G" },
59 { V4L2_STD_PAL_H, "PAL-H" },
60 { V4L2_STD_PAL_I, "PAL-I" },
61 { V4L2_STD_PAL_DK, "PAL-DK" },
62 { V4L2_STD_PAL_D, "PAL-D" },
63 { V4L2_STD_PAL_D1, "PAL-D1" },
64 { V4L2_STD_PAL_K, "PAL-K" },
65 { V4L2_STD_PAL_M, "PAL-M" },
66 { V4L2_STD_PAL_N, "PAL-N" },
67 { V4L2_STD_PAL_Nc, "PAL-Nc" },
68 { V4L2_STD_PAL_60, "PAL-60" },
69 { V4L2_STD_SECAM, "SECAM" },
70 { V4L2_STD_SECAM_B, "SECAM-B" },
71 { V4L2_STD_SECAM_G, "SECAM-G" },
72 { V4L2_STD_SECAM_H, "SECAM-H" },
73 { V4L2_STD_SECAM_DK, "SECAM-DK" },
74 { V4L2_STD_SECAM_D, "SECAM-D" },
75 { V4L2_STD_SECAM_K, "SECAM-K" },
76 { V4L2_STD_SECAM_K1, "SECAM-K1" },
77 { V4L2_STD_SECAM_L, "SECAM-L" },
78 { V4L2_STD_SECAM_LC, "SECAM-Lc" },
79 { 0, "Unknown" }
80};
81
82/* video4linux standard ID conversion to standard name
83 */
84const char *v4l2_norm_to_name(v4l2_std_id id)
85{
86 u32 myid = id;
87 int i;
88
89 /* HACK: ppc32 architecture doesn't have __ucmpdi2 function to handle
90 64 bit comparations. So, on that architecture, with some gcc
91 variants, compilation fails. Currently, the max value is 30bit wide.
92 */
93 BUG_ON(myid != id);
94
95 for (i = 0; standards[i].std; i++)
96 if (myid == standards[i].std)
97 break;
98 return standards[i].descr;
99}
100EXPORT_SYMBOL(v4l2_norm_to_name);
101
51f0b8d5
TP		 102/* Returns frame period for the given standard */
103void v4l2_video_std_frame_period(int id, struct v4l2_fract *frameperiod)
104{
105 if (id & V4L2_STD_525_60) {
106 frameperiod->numerator = 1001;
107 frameperiod->denominator = 30000;
108 } else {
109 frameperiod->numerator = 1;
110 frameperiod->denominator = 25;
111 }
112}
113EXPORT_SYMBOL(v4l2_video_std_frame_period);
114
35ea11ff
HV		 115/* Fill in the fields of a v4l2_standard structure according to the
116 'id' and 'transmission' parameters. Returns negative on error. */
117int v4l2_video_std_construct(struct v4l2_standard *vs,
118 int id, const char *name)
119{
51f0b8d5
TP		 120 vs->id = id;
121 v4l2_video_std_frame_period(id, &vs->frameperiod);
122 vs->framelines = (id & V4L2_STD_525_60) ? 525 : 625;
35ea11ff
HV		 123 strlcpy(vs->name, name, sizeof(vs->name));
124 return 0;
125}
126EXPORT_SYMBOL(v4l2_video_std_construct);
127
128/* ----------------------------------------------------------------- */
129/* some arrays for pretty-printing debug messages of enum types */
130
131const char *v4l2_field_names[] = {
132 [V4L2_FIELD_ANY] = "any",
133 [V4L2_FIELD_NONE] = "none",
134 [V4L2_FIELD_TOP] = "top",
135 [V4L2_FIELD_BOTTOM] = "bottom",
136 [V4L2_FIELD_INTERLACED] = "interlaced",
137 [V4L2_FIELD_SEQ_TB] = "seq-tb",
138 [V4L2_FIELD_SEQ_BT] = "seq-bt",
139 [V4L2_FIELD_ALTERNATE] = "alternate",
140 [V4L2_FIELD_INTERLACED_TB] = "interlaced-tb",
141 [V4L2_FIELD_INTERLACED_BT] = "interlaced-bt",
142};
143EXPORT_SYMBOL(v4l2_field_names);
144
145const char *v4l2_type_names[] = {
839aa56d 146 [0] = "0",
35ea11ff
HV		 147 [V4L2_BUF_TYPE_VIDEO_CAPTURE] = "vid-cap",
148 [V4L2_BUF_TYPE_VIDEO_OVERLAY] = "vid-overlay",
149 [V4L2_BUF_TYPE_VIDEO_OUTPUT] = "vid-out",
150 [V4L2_BUF_TYPE_VBI_CAPTURE] = "vbi-cap",
151 [V4L2_BUF_TYPE_VBI_OUTPUT] = "vbi-out",
152 [V4L2_BUF_TYPE_SLICED_VBI_CAPTURE] = "sliced-vbi-cap",
153 [V4L2_BUF_TYPE_SLICED_VBI_OUTPUT] = "sliced-vbi-out",
154 [V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY] = "vid-out-overlay",
f8f3914c
PO		 155 [V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE] = "vid-cap-mplane",
156 [V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE] = "vid-out-mplane",
6f3073b8 157 [V4L2_BUF_TYPE_SDR_CAPTURE] = "sdr-cap",
9effc72f 158 [V4L2_BUF_TYPE_SDR_OUTPUT] = "sdr-out",
fb9ffa6a 159 [V4L2_BUF_TYPE_META_CAPTURE] = "meta-cap",
35ea11ff
HV		 160};
161EXPORT_SYMBOL(v4l2_type_names);
162
163static const char *v4l2_memory_names[] = {
164 [V4L2_MEMORY_MMAP] = "mmap",
165 [V4L2_MEMORY_USERPTR] = "userptr",
166 [V4L2_MEMORY_OVERLAY] = "overlay",
051c7788 167 [V4L2_MEMORY_DMABUF] = "dmabuf",
35ea11ff
HV		 168};
169
d9246240 170#define prt_names(a, arr) (((unsigned)(a)) < ARRAY_SIZE(arr) ? arr[a] : "unknown")
35ea11ff
HV		 171
172/* ------------------------------------------------------------------ */
173/* debug help functions */
8ab75e3e 174
59076122
HV		 175static void v4l_print_querycap(const void *arg, bool write_only)
176{
177 const struct v4l2_capability *p = arg;
178
8720427c 179 pr_cont("driver=%.*s, card=%.*s, bus=%.*s, version=0x%08x, capabilities=0x%08x, device_caps=0x%08x\n",
27d5a87c
HV		 180 (int)sizeof(p->driver), p->driver,
181 (int)sizeof(p->card), p->card,
182 (int)sizeof(p->bus_info), p->bus_info,
59076122
HV		 183 p->version, p->capabilities, p->device_caps);
184}
185
186static void v4l_print_enuminput(const void *arg, bool write_only)
187{
188 const struct v4l2_input *p = arg;
189
8720427c 190 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		 191 p->index, (int)sizeof(p->name), p->name, p->type, p->audioset,
192 p->tuner, (unsigned long long)p->std, p->status,
193 p->capabilities);
59076122
HV		 194}
195
196static void v4l_print_enumoutput(const void *arg, bool write_only)
197{
198 const struct v4l2_output *p = arg;
199
8720427c 200 pr_cont("index=%u, name=%.*s, type=%u, audioset=0x%x, modulator=%u, std=0x%08Lx, capabilities=0x%x\n",
27d5a87c
HV		 201 p->index, (int)sizeof(p->name), p->name, p->type, p->audioset,
202 p->modulator, (unsigned long long)p->std, p->capabilities);
59076122
HV		 203}
204
205static void v4l_print_audio(const void *arg, bool write_only)
206{
207 const struct v4l2_audio *p = arg;
208
209 if (write_only)
210 pr_cont("index=%u, mode=0x%x\n", p->index, p->mode);
211 else
27d5a87c
HV		 212 pr_cont("index=%u, name=%.*s, capability=0x%x, mode=0x%x\n",
213 p->index, (int)sizeof(p->name), p->name,
214 p->capability, p->mode);
59076122
HV		 215}
216
217static void v4l_print_audioout(const void *arg, bool write_only)
218{
219 const struct v4l2_audioout *p = arg;
220
221 if (write_only)
222 pr_cont("index=%u\n", p->index);
223 else
27d5a87c
HV		 224 pr_cont("index=%u, name=%.*s, capability=0x%x, mode=0x%x\n",
225 p->index, (int)sizeof(p->name), p->name,
226 p->capability, p->mode);
59076122
HV		 227}
228
be6c64e4
HV		 229static void v4l_print_fmtdesc(const void *arg, bool write_only)
230{
231 const struct v4l2_fmtdesc *p = arg;
232
27d5a87c 233 pr_cont("index=%u, type=%s, flags=0x%x, pixelformat=%c%c%c%c, description='%.*s'\n",
be6c64e4
HV		 234 p->index, prt_names(p->type, v4l2_type_names),
235 p->flags, (p->pixelformat & 0xff),
236 (p->pixelformat >> 8) & 0xff,
237 (p->pixelformat >> 16) & 0xff,
238 (p->pixelformat >> 24) & 0xff,
27d5a87c 239 (int)sizeof(p->description), p->description);
be6c64e4
HV		 240}
241
242static void v4l_print_format(const void *arg, bool write_only)
243{
244 const struct v4l2_format *p = arg;
245 const struct v4l2_pix_format *pix;
246 const struct v4l2_pix_format_mplane *mp;
247 const struct v4l2_vbi_format *vbi;
248 const struct v4l2_sliced_vbi_format *sliced;
249 const struct v4l2_window *win;
87185c95 250 const struct v4l2_sdr_format *sdr;
fb9ffa6a 251 const struct v4l2_meta_format *meta;
be6c64e4
HV		 252 unsigned i;
253
254 pr_cont("type=%s", prt_names(p->type, v4l2_type_names));
255 switch (p->type) {
256 case V4L2_BUF_TYPE_VIDEO_CAPTURE:
257 case V4L2_BUF_TYPE_VIDEO_OUTPUT:
258 pix = &p->fmt.pix;
8720427c 259 pr_cont(", width=%u, height=%u, pixelformat=%c%c%c%c, field=%s, bytesperline=%u, sizeimage=%u, colorspace=%d, flags=0x%x, ycbcr_enc=%u, quantization=%u, xfer_func=%u\n",
be6c64e4
HV		 260 pix->width, pix->height,
261 (pix->pixelformat & 0xff),
262 (pix->pixelformat >> 8) & 0xff,
263 (pix->pixelformat >> 16) & 0xff,
264 (pix->pixelformat >> 24) & 0xff,
265 prt_names(pix->field, v4l2_field_names),
266 pix->bytesperline, pix->sizeimage,
736d96b5 267 pix->colorspace, pix->flags, pix->ycbcr_enc,
74fdcb2e 268 pix->quantization, pix->xfer_func);
be6c64e4
HV		 269 break;
270 case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE:
271 case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE:
272 mp = &p->fmt.pix_mp;
8720427c 273 pr_cont(", width=%u, height=%u, format=%c%c%c%c, field=%s, colorspace=%d, num_planes=%u, flags=0x%x, ycbcr_enc=%u, quantization=%u, xfer_func=%u\n",
be6c64e4
HV		 274 mp->width, mp->height,
275 (mp->pixelformat & 0xff),
276 (mp->pixelformat >> 8) & 0xff,
277 (mp->pixelformat >> 16) & 0xff,
278 (mp->pixelformat >> 24) & 0xff,
279 prt_names(mp->field, v4l2_field_names),
736d96b5 280 mp->colorspace, mp->num_planes, mp->flags,
74fdcb2e 281 mp->ycbcr_enc, mp->quantization, mp->xfer_func);
be6c64e4
HV		 282 for (i = 0; i < mp->num_planes; i++)
283 printk(KERN_DEBUG "plane %u: bytesperline=%u sizeimage=%u\n", i,
284 mp->plane_fmt[i].bytesperline,
285 mp->plane_fmt[i].sizeimage);
286 break;
287 case V4L2_BUF_TYPE_VIDEO_OVERLAY:
288 case V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY:
289 win = &p->fmt.win;
560dde24
HV		 290 /* Note: we can't print the clip list here since the clips
291 * pointer is a userspace pointer, not a kernelspace
292 * pointer. */
293 pr_cont(", wxh=%dx%d, x,y=%d,%d, field=%s, chromakey=0x%08x, clipcount=%u, clips=%p, bitmap=%p, global_alpha=0x%02x\n",
294 win->w.width, win->w.height, win->w.left, win->w.top,
be6c64e4 295 prt_names(win->field, v4l2_field_names),
560dde24
HV		 296 win->chromakey, win->clipcount, win->clips,
297 win->bitmap, win->global_alpha);
be6c64e4
HV		 298 break;
299 case V4L2_BUF_TYPE_VBI_CAPTURE:
300 case V4L2_BUF_TYPE_VBI_OUTPUT:
301 vbi = &p->fmt.vbi;
8720427c 302 pr_cont(", sampling_rate=%u, offset=%u, samples_per_line=%u, sample_format=%c%c%c%c, start=%u,%u, count=%u,%u\n",
be6c64e4
HV		 303 vbi->sampling_rate, vbi->offset,
304 vbi->samples_per_line,
305 (vbi->sample_format & 0xff),
306 (vbi->sample_format >> 8) & 0xff,
307 (vbi->sample_format >> 16) & 0xff,
308 (vbi->sample_format >> 24) & 0xff,
309 vbi->start[0], vbi->start[1],
310 vbi->count[0], vbi->count[1]);
311 break;
312 case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE:
313 case V4L2_BUF_TYPE_SLICED_VBI_OUTPUT:
314 sliced = &p->fmt.sliced;
315 pr_cont(", service_set=0x%08x, io_size=%d\n",
316 sliced->service_set, sliced->io_size);
317 for (i = 0; i < 24; i++)
318 printk(KERN_DEBUG "line[%02u]=0x%04x, 0x%04x\n", i,
319 sliced->service_lines[0][i],
320 sliced->service_lines[1][i]);
321 break;
582c52cb 322 case V4L2_BUF_TYPE_SDR_CAPTURE:
9effc72f 323 case V4L2_BUF_TYPE_SDR_OUTPUT:
582c52cb
AP		 324 sdr = &p->fmt.sdr;
325 pr_cont(", pixelformat=%c%c%c%c\n",
326 (sdr->pixelformat >> 0) & 0xff,
327 (sdr->pixelformat >> 8) & 0xff,
328 (sdr->pixelformat >> 16) & 0xff,
329 (sdr->pixelformat >> 24) & 0xff);
330 break;
fb9ffa6a
LP		 331 case V4L2_BUF_TYPE_META_CAPTURE:
332 meta = &p->fmt.meta;
333 pr_cont(", dataformat=%c%c%c%c, buffersize=%u\n",
334 (meta->dataformat >> 0) & 0xff,
335 (meta->dataformat >> 8) & 0xff,
336 (meta->dataformat >> 16) & 0xff,
337 (meta->dataformat >> 24) & 0xff,
338 meta->buffersize);
339 break;
be6c64e4
HV		 340 }
341}
342
343static void v4l_print_framebuffer(const void *arg, bool write_only)
344{
345 const struct v4l2_framebuffer *p = arg;
346
8720427c 347 pr_cont("capability=0x%x, flags=0x%x, base=0x%p, width=%u, height=%u, pixelformat=%c%c%c%c, bytesperline=%u, sizeimage=%u, colorspace=%d\n",
be6c64e4
HV		 348 p->capability, p->flags, p->base,
349 p->fmt.width, p->fmt.height,
350 (p->fmt.pixelformat & 0xff),
351 (p->fmt.pixelformat >> 8) & 0xff,
352 (p->fmt.pixelformat >> 16) & 0xff,
353 (p->fmt.pixelformat >> 24) & 0xff,
354 p->fmt.bytesperline, p->fmt.sizeimage,
355 p->fmt.colorspace);
356}
357
e325b244
HV		 358static void v4l_print_buftype(const void *arg, bool write_only)
359{
360 pr_cont("type=%s\n", prt_names(*(u32 *)arg, v4l2_type_names));
361}
362
4b1e2e4d
HV		 363static void v4l_print_modulator(const void *arg, bool write_only)
364{
365 const struct v4l2_modulator *p = arg;
366
367 if (write_only)
560dde24 368 pr_cont("index=%u, txsubchans=0x%x\n", p->index, p->txsubchans);
4b1e2e4d 369 else
8720427c 370 pr_cont("index=%u, name=%.*s, capability=0x%x, rangelow=%u, rangehigh=%u, txsubchans=0x%x\n",
27d5a87c 371 p->index, (int)sizeof(p->name), p->name, p->capability,
4b1e2e4d
HV		 372 p->rangelow, p->rangehigh, p->txsubchans);
373}
374
375static void v4l_print_tuner(const void *arg, bool write_only)
376{
377 const struct v4l2_tuner *p = arg;
378
379 if (write_only)
380 pr_cont("index=%u, audmode=%u\n", p->index, p->audmode);
381 else
8720427c 382 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 383 p->index, (int)sizeof(p->name), p->name, p->type,
4b1e2e4d
HV		 384 p->capability, p->rangelow,
385 p->rangehigh, p->signal, p->afc,
386 p->rxsubchans, p->audmode);
387}
388
389static void v4l_print_frequency(const void *arg, bool write_only)
390{
391 const struct v4l2_frequency *p = arg;
392
393 pr_cont("tuner=%u, type=%u, frequency=%u\n",
394 p->tuner, p->type, p->frequency);
395}
396
397static void v4l_print_standard(const void *arg, bool write_only)
398{
399 const struct v4l2_standard *p = arg;
400
8720427c
MCC		 401 pr_cont("index=%u, id=0x%Lx, name=%.*s, fps=%u/%u, framelines=%u\n",
402 p->index,
27d5a87c 403 (unsigned long long)p->id, (int)sizeof(p->name), p->name,
4b1e2e4d
HV		 404 p->frameperiod.numerator,
405 p->frameperiod.denominator,
406 p->framelines);
407}
408
409static void v4l_print_std(const void *arg, bool write_only)
410{
411 pr_cont("std=0x%08Lx\n", *(const long long unsigned *)arg);
412}
413
414static void v4l_print_hw_freq_seek(const void *arg, bool write_only)
415{
416 const struct v4l2_hw_freq_seek *p = arg;
417
8720427c 418 pr_cont("tuner=%u, type=%u, seek_upward=%u, wrap_around=%u, spacing=%u, rangelow=%u, rangehigh=%u\n",
5e788317
HV		 419 p->tuner, p->type, p->seek_upward, p->wrap_around, p->spacing,
420 p->rangelow, p->rangehigh);
4b1e2e4d
HV		 421}
422
eb3728ed 423static void v4l_print_requestbuffers(const void *arg, bool write_only)
59076122 424{
eb3728ed
HV		 425 const struct v4l2_requestbuffers *p = arg;
426
427 pr_cont("count=%d, type=%s, memory=%s\n",
428 p->count,
429 prt_names(p->type, v4l2_type_names),
430 prt_names(p->memory, v4l2_memory_names));
59076122
HV		 431}
432
eb3728ed 433static void v4l_print_buffer(const void *arg, bool write_only)
35ea11ff 434{
eb3728ed
HV		 435 const struct v4l2_buffer *p = arg;
436 const struct v4l2_timecode *tc = &p->timecode;
437 const struct v4l2_plane *plane;
d14e6d76 438 int i;
35ea11ff 439
8720427c 440 pr_cont("%02ld:%02d:%02d.%08ld index=%d, type=%s, flags=0x%08x, field=%s, sequence=%d, memory=%s",
35ea11ff
HV		 441 p->timestamp.tv_sec / 3600,
442 (int)(p->timestamp.tv_sec / 60) % 60,
443 (int)(p->timestamp.tv_sec % 60),
b045979d 444 (long)p->timestamp.tv_usec,
35ea11ff
HV		 445 p->index,
446 prt_names(p->type, v4l2_type_names),
eb3728ed
HV		 447 p->flags, prt_names(p->field, v4l2_field_names),
448 p->sequence, prt_names(p->memory, v4l2_memory_names));
d14e6d76
PO		 449
450 if (V4L2_TYPE_IS_MULTIPLANAR(p->type) && p->m.planes) {
eb3728ed 451 pr_cont("\n");
d14e6d76
PO		 452 for (i = 0; i < p->length; ++i) {
453 plane = &p->m.planes[i];
eb3728ed 454 printk(KERN_DEBUG
8720427c 455 "plane %d: bytesused=%d, data_offset=0x%08x, offset/userptr=0x%lx, length=%d\n",
d14e6d76
PO		 456 i, plane->bytesused, plane->data_offset,
457 plane->m.userptr, plane->length);
458 }
459 } else {
560dde24 460 pr_cont(", bytesused=%d, offset/userptr=0x%lx, length=%d\n",
d14e6d76
PO		 461 p->bytesused, p->m.userptr, p->length);
462 }
463
8720427c 464 printk(KERN_DEBUG "timecode=%02d:%02d:%02d type=%d, flags=0x%08x, frames=%d, userbits=0x%08x\n",
35ea11ff
HV		 465 tc->hours, tc->minutes, tc->seconds,
466 tc->type, tc->flags, tc->frames, *(__u32 *)tc->userbits);
467}
468
b799d09a
TS		 469static void v4l_print_exportbuffer(const void *arg, bool write_only)
470{
471 const struct v4l2_exportbuffer *p = arg;
472
473 pr_cont("fd=%d, type=%s, index=%u, plane=%u, flags=0x%08x\n",
474 p->fd, prt_names(p->type, v4l2_type_names),
475 p->index, p->plane, p->flags);
476}
477
eb3728ed
HV		 478static void v4l_print_create_buffers(const void *arg, bool write_only)
479{
480 const struct v4l2_create_buffers *p = arg;
481
482 pr_cont("index=%d, count=%d, memory=%s, ",
483 p->index, p->count,
484 prt_names(p->memory, v4l2_memory_names));
485 v4l_print_format(&p->format, write_only);
486}
487
488static void v4l_print_streamparm(const void *arg, bool write_only)
489{
490 const struct v4l2_streamparm *p = arg;
491
492 pr_cont("type=%s", prt_names(p->type, v4l2_type_names));
493
494 if (p->type == V4L2_BUF_TYPE_VIDEO_CAPTURE ||
495 p->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) {
496 const struct v4l2_captureparm *c = &p->parm.capture;
497
8720427c 498 pr_cont(", capability=0x%x, capturemode=0x%x, timeperframe=%d/%d, extendedmode=%d, readbuffers=%d\n",
eb3728ed
HV		 499 c->capability, c->capturemode,
500 c->timeperframe.numerator, c->timeperframe.denominator,
501 c->extendedmode, c->readbuffers);
502 } else if (p->type == V4L2_BUF_TYPE_VIDEO_OUTPUT ||
503 p->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) {
504 const struct v4l2_outputparm *c = &p->parm.output;
505
8720427c 506 pr_cont(", capability=0x%x, outputmode=0x%x, timeperframe=%d/%d, extendedmode=%d, writebuffers=%d\n",
eb3728ed
HV		 507 c->capability, c->outputmode,
508 c->timeperframe.numerator, c->timeperframe.denominator,
509 c->extendedmode, c->writebuffers);
560dde24
HV		 510 } else {
511 pr_cont("\n");
eb3728ed
HV		 512 }
513}
514
efbceecd
HV		 515static void v4l_print_queryctrl(const void *arg, bool write_only)
516{
517 const struct v4l2_queryctrl *p = arg;
518
8720427c 519 pr_cont("id=0x%x, type=%d, name=%.*s, min/max=%d/%d, step=%d, default=%d, flags=0x%08x\n",
27d5a87c 520 p->id, p->type, (int)sizeof(p->name), p->name,
efbceecd
HV		 521 p->minimum, p->maximum,
522 p->step, p->default_value, p->flags);
523}
524
e6bee368
HV		 525static void v4l_print_query_ext_ctrl(const void *arg, bool write_only)
526{
527 const struct v4l2_query_ext_ctrl *p = arg;
528
8720427c 529 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		 530 p->id, p->type, (int)sizeof(p->name), p->name,
531 p->minimum, p->maximum,
532 p->step, p->default_value, p->flags,
533 p->elem_size, p->elems, p->nr_of_dims,
0176077a 534 p->dims[0], p->dims[1], p->dims[2], p->dims[3]);
e6bee368
HV		 535}
536
efbceecd
HV		 537static void v4l_print_querymenu(const void *arg, bool write_only)
538{
539 const struct v4l2_querymenu *p = arg;
540
541 pr_cont("id=0x%x, index=%d\n", p->id, p->index);
542}
543
544static void v4l_print_control(const void *arg, bool write_only)
545{
546 const struct v4l2_control *p = arg;
547
548 pr_cont("id=0x%x, value=%d\n", p->id, p->value);
549}
550
551static void v4l_print_ext_controls(const void *arg, bool write_only)
552{
553 const struct v4l2_ext_controls *p = arg;
554 int i;
555
0f8017be
RRD		 556 pr_cont("which=0x%x, count=%d, error_idx=%d",
557 p->which, p->count, p->error_idx);
efbceecd 558 for (i = 0; i < p->count; i++) {
017ab36a 559 if (!p->controls[i].size)
efbceecd
HV		 560 pr_cont(", id/val=0x%x/0x%x",
561 p->controls[i].id, p->controls[i].value);
562 else
563 pr_cont(", id/size=0x%x/%u",
564 p->controls[i].id, p->controls[i].size);
565 }
566 pr_cont("\n");
567}
568
d84f2d94 569static void v4l_print_cropcap(const void *arg, bool write_only)
eb3728ed 570{
d84f2d94
HV		 571 const struct v4l2_cropcap *p = arg;
572
8720427c 573 pr_cont("type=%s, bounds wxh=%dx%d, x,y=%d,%d, defrect wxh=%dx%d, x,y=%d,%d, pixelaspect %d/%d\n",
d84f2d94
HV		 574 prt_names(p->type, v4l2_type_names),
575 p->bounds.width, p->bounds.height,
576 p->bounds.left, p->bounds.top,
577 p->defrect.width, p->defrect.height,
578 p->defrect.left, p->defrect.top,
579 p->pixelaspect.numerator, p->pixelaspect.denominator);
eb3728ed
HV		 580}
581
d84f2d94 582static void v4l_print_crop(const void *arg, bool write_only)
35ea11ff 583{
d84f2d94
HV		 584 const struct v4l2_crop *p = arg;
585
586 pr_cont("type=%s, wxh=%dx%d, x,y=%d,%d\n",
587 prt_names(p->type, v4l2_type_names),
588 p->c.width, p->c.height,
589 p->c.left, p->c.top);
590}
591
592static void v4l_print_selection(const void *arg, bool write_only)
593{
594 const struct v4l2_selection *p = arg;
595
596 pr_cont("type=%s, target=%d, flags=0x%x, wxh=%dx%d, x,y=%d,%d\n",
597 prt_names(p->type, v4l2_type_names),
598 p->target, p->flags,
599 p->r.width, p->r.height, p->r.left, p->r.top);
600}
601
d806f2df
HV		 602static void v4l_print_jpegcompression(const void *arg, bool write_only)
603{
604 const struct v4l2_jpegcompression *p = arg;
605
8720427c 606 pr_cont("quality=%d, APPn=%d, APP_len=%d, COM_len=%d, jpeg_markers=0x%x\n",
d806f2df
HV		 607 p->quality, p->APPn, p->APP_len,
608 p->COM_len, p->jpeg_markers);
609}
610
611static void v4l_print_enc_idx(const void *arg, bool write_only)
612{
613 const struct v4l2_enc_idx *p = arg;
614
615 pr_cont("entries=%d, entries_cap=%d\n",
616 p->entries, p->entries_cap);
617}
618
619static void v4l_print_encoder_cmd(const void *arg, bool write_only)
620{
621 const struct v4l2_encoder_cmd *p = arg;
622
623 pr_cont("cmd=%d, flags=0x%x\n",
624 p->cmd, p->flags);
625}
626
627static void v4l_print_decoder_cmd(const void *arg, bool write_only)
628{
629 const struct v4l2_decoder_cmd *p = arg;
630
631 pr_cont("cmd=%d, flags=0x%x\n", p->cmd, p->flags);
632
633 if (p->cmd == V4L2_DEC_CMD_START)
634 pr_info("speed=%d, format=%u\n",
635 p->start.speed, p->start.format);
636 else if (p->cmd == V4L2_DEC_CMD_STOP)
637 pr_info("pts=%llu\n", p->stop.pts);
638}
639
96b03d2a 640static void v4l_print_dbg_chip_info(const void *arg, bool write_only)
79b0c640 641{
96b03d2a 642 const struct v4l2_dbg_chip_info *p = arg;
79b0c640
HV		 643
644 pr_cont("type=%u, ", p->match.type);
3eef2510 645 if (p->match.type == V4L2_CHIP_MATCH_I2C_DRIVER)
79b0c640
HV		 646 pr_cont("name=%.*s, ",
647 (int)sizeof(p->match.name), p->match.name);
648 else
649 pr_cont("addr=%u, ", p->match.addr);
650 pr_cont("name=%.*s\n", (int)sizeof(p->name), p->name);
651}
652
f16f77b0
HV		 653static void v4l_print_dbg_register(const void *arg, bool write_only)
654{
655 const struct v4l2_dbg_register *p = arg;
656
657 pr_cont("type=%u, ", p->match.type);
3eef2510 658 if (p->match.type == V4L2_CHIP_MATCH_I2C_DRIVER)
27d5a87c
HV		 659 pr_cont("name=%.*s, ",
660 (int)sizeof(p->match.name), p->match.name);
f16f77b0
HV		 661 else
662 pr_cont("addr=%u, ", p->match.addr);
663 pr_cont("reg=0x%llx, val=0x%llx\n",
664 p->reg, p->val);
665}
666
efc626b0 667static void v4l_print_dv_timings(const void *arg, bool write_only)
5d7758ee 668{
efc626b0
HV		 669 const struct v4l2_dv_timings *p = arg;
670
5d7758ee
HV		 671 switch (p->type) {
672 case V4L2_DV_BT_656_1120:
8720427c 673 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		 674 p->bt.interlaced, p->bt.pixelclock,
675 p->bt.width, p->bt.height,
676 p->bt.polarities, p->bt.hfrontporch,
677 p->bt.hsync, p->bt.hbackporch,
678 p->bt.vfrontporch, p->bt.vsync,
679 p->bt.vbackporch, p->bt.il_vfrontporch,
680 p->bt.il_vsync, p->bt.il_vbackporch,
681 p->bt.standards, p->bt.flags);
682 break;
683 default:
efc626b0 684 pr_cont("type=%d\n", p->type);
5d7758ee
HV		 685 break;
686 }
687}
688
efc626b0
HV		 689static void v4l_print_enum_dv_timings(const void *arg, bool write_only)
690{
691 const struct v4l2_enum_dv_timings *p = arg;
692
693 pr_cont("index=%u, ", p->index);
694 v4l_print_dv_timings(&p->timings, write_only);
695}
696
697static void v4l_print_dv_timings_cap(const void *arg, bool write_only)
698{
699 const struct v4l2_dv_timings_cap *p = arg;
700
701 switch (p->type) {
702 case V4L2_DV_BT_656_1120:
8720427c 703 pr_cont("type=bt-656/1120, width=%u-%u, height=%u-%u, pixelclock=%llu-%llu, standards=0x%x, capabilities=0x%x\n",
efc626b0
HV		 704 p->bt.min_width, p->bt.max_width,
705 p->bt.min_height, p->bt.max_height,
706 p->bt.min_pixelclock, p->bt.max_pixelclock,
707 p->bt.standards, p->bt.capabilities);
708 break;
709 default:
710 pr_cont("type=%u\n", p->type);
711 break;
712 }
713}
714
458aa4a6
HV		 715static void v4l_print_frmsizeenum(const void *arg, bool write_only)
716{
717 const struct v4l2_frmsizeenum *p = arg;
718
719 pr_cont("index=%u, pixelformat=%c%c%c%c, type=%u",
720 p->index,
721 (p->pixel_format & 0xff),
722 (p->pixel_format >> 8) & 0xff,
723 (p->pixel_format >> 16) & 0xff,
724 (p->pixel_format >> 24) & 0xff,
725 p->type);
726 switch (p->type) {
727 case V4L2_FRMSIZE_TYPE_DISCRETE:
560dde24 728 pr_cont(", wxh=%ux%u\n",
458aa4a6
HV		 729 p->discrete.width, p->discrete.height);
730 break;
731 case V4L2_FRMSIZE_TYPE_STEPWISE:
560dde24 732 pr_cont(", min=%ux%u, max=%ux%u, step=%ux%u\n",
2489477e
RRD		 733 p->stepwise.min_width,
734 p->stepwise.min_height,
735 p->stepwise.max_width,
736 p->stepwise.max_height,
737 p->stepwise.step_width,
738 p->stepwise.step_height);
458aa4a6
HV		 739 break;
740 case V4L2_FRMSIZE_TYPE_CONTINUOUS:
741 /* fall through */
742 default:
743 pr_cont("\n");
744 break;
745 }
746}
747
748static void v4l_print_frmivalenum(const void *arg, bool write_only)
749{
750 const struct v4l2_frmivalenum *p = arg;
751
752 pr_cont("index=%u, pixelformat=%c%c%c%c, wxh=%ux%u, type=%u",
753 p->index,
754 (p->pixel_format & 0xff),
755 (p->pixel_format >> 8) & 0xff,
756 (p->pixel_format >> 16) & 0xff,
757 (p->pixel_format >> 24) & 0xff,
758 p->width, p->height, p->type);
759 switch (p->type) {
760 case V4L2_FRMIVAL_TYPE_DISCRETE:
560dde24 761 pr_cont(", fps=%d/%d\n",
458aa4a6
HV		 762 p->discrete.numerator,
763 p->discrete.denominator);
764 break;
765 case V4L2_FRMIVAL_TYPE_STEPWISE:
560dde24 766 pr_cont(", min=%d/%d, max=%d/%d, step=%d/%d\n",
458aa4a6
HV		 767 p->stepwise.min.numerator,
768 p->stepwise.min.denominator,
769 p->stepwise.max.numerator,
770 p->stepwise.max.denominator,
771 p->stepwise.step.numerator,
772 p->stepwise.step.denominator);
773 break;
774 case V4L2_FRMIVAL_TYPE_CONTINUOUS:
775 /* fall through */
776 default:
777 pr_cont("\n");
778 break;
779 }
780}
781
782static void v4l_print_event(const void *arg, bool write_only)
783{
784 const struct v4l2_event *p = arg;
785 const struct v4l2_event_ctrl *c;
786
8720427c 787 pr_cont("type=0x%x, pending=%u, sequence=%u, id=%u, timestamp=%lu.%9.9lu\n",
458aa4a6
HV		 788 p->type, p->pending, p->sequence, p->id,
789 p->timestamp.tv_sec, p->timestamp.tv_nsec);
790 switch (p->type) {
791 case V4L2_EVENT_VSYNC:
792 printk(KERN_DEBUG "field=%s\n",
793 prt_names(p->u.vsync.field, v4l2_field_names));
794 break;
795 case V4L2_EVENT_CTRL:
796 c = &p->u.ctrl;
797 printk(KERN_DEBUG "changes=0x%x, type=%u, ",
798 c->changes, c->type);
799 if (c->type == V4L2_CTRL_TYPE_INTEGER64)
800 pr_cont("value64=%lld, ", c->value64);
801 else
802 pr_cont("value=%d, ", c->value);
8720427c 803 pr_cont("flags=0x%x, minimum=%d, maximum=%d, step=%d, default_value=%d\n",
458aa4a6
HV		 804 c->flags, c->minimum, c->maximum,
805 c->step, c->default_value);
806 break;
807 case V4L2_EVENT_FRAME_SYNC:
808 pr_cont("frame_sequence=%u\n",
809 p->u.frame_sync.frame_sequence);
810 break;
811 }
812}
813
814static void v4l_print_event_subscription(const void *arg, bool write_only)
815{
816 const struct v4l2_event_subscription *p = arg;
817
818 pr_cont("type=0x%x, id=0x%x, flags=0x%x\n",
819 p->type, p->id, p->flags);
820}
821
822static void v4l_print_sliced_vbi_cap(const void *arg, bool write_only)
823{
824 const struct v4l2_sliced_vbi_cap *p = arg;
825 int i;
826
827 pr_cont("type=%s, service_set=0x%08x\n",
828 prt_names(p->type, v4l2_type_names), p->service_set);
829 for (i = 0; i < 24; i++)
830 printk(KERN_DEBUG "line[%02u]=0x%04x, 0x%04x\n", i,
831 p->service_lines[0][i],
832 p->service_lines[1][i]);
833}
834
82b655bf
HV		 835static void v4l_print_freq_band(const void *arg, bool write_only)
836{
837 const struct v4l2_frequency_band *p = arg;
838
8720427c 839 pr_cont("tuner=%u, type=%u, index=%u, capability=0x%x, rangelow=%u, rangehigh=%u, modulation=0x%x\n",
82b655bf
HV		 840 p->tuner, p->type, p->index,
841 p->capability, p->rangelow,
842 p->rangehigh, p->modulation);
843}
844
dd519bb3
HV		 845static void v4l_print_edid(const void *arg, bool write_only)
846{
847 const struct v4l2_edid *p = arg;
848
849 pr_cont("pad=%u, start_block=%u, blocks=%u\n",
850 p->pad, p->start_block, p->blocks);
851}
852
efc626b0
HV		 853static void v4l_print_u32(const void *arg, bool write_only)
854{
855 pr_cont("value=%u\n", *(const u32 *)arg);
856}
857
858static void v4l_print_newline(const void *arg, bool write_only)
859{
860 pr_cont("\n");
861}
862
f18d8e07
HV		 863static void v4l_print_default(const void *arg, bool write_only)
864{
865 pr_cont("driver-specific ioctl\n");
866}
867
efbceecd 868static int check_ext_ctrls(struct v4l2_ext_controls *c, int allow_priv)
35ea11ff
HV		 869{
870 __u32 i;
871
872 /* zero the reserved fields */
873 c->reserved[0] = c->reserved[1] = 0;
6b5a9492 874 for (i = 0; i < c->count; i++)
35ea11ff 875 c->controls[i].reserved2[0] = 0;
6b5a9492 876
35ea11ff
HV		 877 /* V4L2_CID_PRIVATE_BASE cannot be used as control class
878 when using extended controls.
879 Only when passed in through VIDIOC_G_CTRL and VIDIOC_S_CTRL
880 is it allowed for backwards compatibility.
881 */
0f8017be 882 if (!allow_priv && c->which == V4L2_CID_PRIVATE_BASE)
35ea11ff 883 return 0;
0f8017be 884 if (!c->which)
9b239b22 885 return 1;
35ea11ff
HV		 886 /* Check that all controls are from the same control class. */
887 for (i = 0; i < c->count; i++) {
0f8017be 888 if (V4L2_CTRL_ID2WHICH(c->controls[i].id) != c->which) {
35ea11ff
HV		 889 c->error_idx = i;
890 return 0;
891 }
892 }
893 return 1;
894}
895
4b20259f 896static int check_fmt(struct file *file, enum v4l2_buf_type type)
35ea11ff 897{
4b20259f
HV		 898 struct video_device *vfd = video_devdata(file);
899 const struct v4l2_ioctl_ops *ops = vfd->ioctl_ops;
900 bool is_vid = vfd->vfl_type == VFL_TYPE_GRABBER;
901 bool is_vbi = vfd->vfl_type == VFL_TYPE_VBI;
582c52cb 902 bool is_sdr = vfd->vfl_type == VFL_TYPE_SDR;
b2fe22d0 903 bool is_tch = vfd->vfl_type == VFL_TYPE_TOUCH;
4b20259f
HV		 904 bool is_rx = vfd->vfl_dir != VFL_DIR_TX;
905 bool is_tx = vfd->vfl_dir != VFL_DIR_RX;
906
a399810c
HV		 907 if (ops == NULL)
908 return -EINVAL;
909
35ea11ff
HV		 910 switch (type) {
911 case V4L2_BUF_TYPE_VIDEO_CAPTURE:
b2fe22d0 912 if ((is_vid || is_tch) && is_rx &&
4b20259f 913 (ops->vidioc_g_fmt_vid_cap || ops->vidioc_g_fmt_vid_cap_mplane))
d14e6d76
PO		 914 return 0;
915 break;
916 case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE:
4b20259f 917 if (is_vid && is_rx && ops->vidioc_g_fmt_vid_cap_mplane)
35ea11ff
HV		 918 return 0;
919 break;
920 case V4L2_BUF_TYPE_VIDEO_OVERLAY:
4b20259f 921 if (is_vid && is_rx && ops->vidioc_g_fmt_vid_overlay)
35ea11ff
HV		 922 return 0;
923 break;
924 case V4L2_BUF_TYPE_VIDEO_OUTPUT:
4b20259f
HV		 925 if (is_vid && is_tx &&
926 (ops->vidioc_g_fmt_vid_out || ops->vidioc_g_fmt_vid_out_mplane))
d14e6d76
PO		 927 return 0;
928 break;
929 case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE:
4b20259f 930 if (is_vid && is_tx && ops->vidioc_g_fmt_vid_out_mplane)
35ea11ff
HV		 931 return 0;
932 break;
933 case V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY:
4b20259f 934 if (is_vid && is_tx && ops->vidioc_g_fmt_vid_out_overlay)
35ea11ff
HV		 935 return 0;
936 break;
937 case V4L2_BUF_TYPE_VBI_CAPTURE:
4b20259f 938 if (is_vbi && is_rx && ops->vidioc_g_fmt_vbi_cap)
35ea11ff
HV		 939 return 0;
940 break;
941 case V4L2_BUF_TYPE_VBI_OUTPUT:
4b20259f 942 if (is_vbi && is_tx && ops->vidioc_g_fmt_vbi_out)
35ea11ff
HV		 943 return 0;
944 break;
945 case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE:
4b20259f 946 if (is_vbi && is_rx && ops->vidioc_g_fmt_sliced_vbi_cap)
35ea11ff
HV		 947 return 0;
948 break;
949 case V4L2_BUF_TYPE_SLICED_VBI_OUTPUT:
4b20259f 950 if (is_vbi && is_tx && ops->vidioc_g_fmt_sliced_vbi_out)
35ea11ff
HV		 951 return 0;
952 break;
582c52cb
AP		 953 case V4L2_BUF_TYPE_SDR_CAPTURE:
954 if (is_sdr && is_rx && ops->vidioc_g_fmt_sdr_cap)
955 return 0;
956 break;
9effc72f
AP		 957 case V4L2_BUF_TYPE_SDR_OUTPUT:
958 if (is_sdr && is_tx && ops->vidioc_g_fmt_sdr_out)
959 return 0;
960 break;
fb9ffa6a
LP		 961 case V4L2_BUF_TYPE_META_CAPTURE:
962 if (is_vid && is_rx && ops->vidioc_g_fmt_meta_cap)
963 return 0;
964 break;
633c98e5 965 default:
35ea11ff
HV		 966 break;
967 }
968 return -EINVAL;
969}
970
d52e2381
LP		 971static void v4l_sanitize_format(struct v4l2_format *fmt)
972{
973 unsigned int offset;
974
975 /*
976 * The v4l2_pix_format structure has been extended with fields that were
977 * not previously required to be set to zero by applications. The priv
978 * field, when set to a magic value, indicates the the extended fields
979 * are valid. Otherwise they will contain undefined values. To simplify
980 * the API towards drivers zero the extended fields and set the priv
981 * field to the magic value when the extended pixel format structure
982 * isn't used by applications.
983 */
984
985 if (fmt->type != V4L2_BUF_TYPE_VIDEO_CAPTURE &&
986 fmt->type != V4L2_BUF_TYPE_VIDEO_OUTPUT)
987 return;
988
989 if (fmt->fmt.pix.priv == V4L2_PIX_FMT_PRIV_MAGIC)
990 return;
991
992 fmt->fmt.pix.priv = V4L2_PIX_FMT_PRIV_MAGIC;
993
994 offset = offsetof(struct v4l2_pix_format, priv)
995 + sizeof(fmt->fmt.pix.priv);
996 memset(((void *)&fmt->fmt.pix) + offset, 0,
997 sizeof(fmt->fmt.pix) - offset);
998}
999
59076122
HV		 1000static int v4l_querycap(const struct v4l2_ioctl_ops *ops,
1001 struct file *file, void *fh, void *arg)
1002{
1003 struct v4l2_capability *cap = (struct v4l2_capability *)arg;
7bbe7813 1004 struct video_device *vfd = video_devdata(file);
d52e2381 1005 int ret;
59076122
HV		 1006
1007 cap->version = LINUX_VERSION_CODE;
7bbe7813
HV		 1008 cap->device_caps = vfd->device_caps;
1009 cap->capabilities = vfd->device_caps | V4L2_CAP_DEVICE_CAPS;
d52e2381
LP		 1010
1011 ret = ops->vidioc_querycap(file, fh, cap);
1012
1013 cap->capabilities |= V4L2_CAP_EXT_PIX_FORMAT;
454a4e72
HV		 1014 /*
1015 * Drivers MUST fill in device_caps, so check for this and
1016 * warn if it was forgotten.
1017 */
6d7570c4
LA		 1018 WARN(!(cap->capabilities & V4L2_CAP_DEVICE_CAPS) ||
1019 !cap->device_caps, "Bad caps for driver %s, %x %x",
1020 cap->driver, cap->capabilities, cap->device_caps);
796a2bd2 1021 cap->device_caps |= V4L2_CAP_EXT_PIX_FORMAT;
d52e2381
LP		 1022
1023 return ret;
59076122
HV		 1024}
1025
1026static int v4l_s_input(const struct v4l2_ioctl_ops *ops,
1027 struct file *file, void *fh, void *arg)
1028{
77fa4e07
SK		 1029 struct video_device *vfd = video_devdata(file);
1030 int ret;
1031
1032 ret = v4l_enable_media_source(vfd);
1033 if (ret)
1034 return ret;
59076122
HV		 1035 return ops->vidioc_s_input(file, fh, *(unsigned int *)arg);
1036}
1037
1038static int v4l_s_output(const struct v4l2_ioctl_ops *ops,
1039 struct file *file, void *fh, void *arg)
1040{
1041 return ops->vidioc_s_output(file, fh, *(unsigned int *)arg);
1042}
1043
d0547cba
HV		 1044static int v4l_g_priority(const struct v4l2_ioctl_ops *ops,
1045 struct file *file, void *fh, void *arg)
1046{
1047 struct video_device *vfd;
1048 u32 *p = arg;
1049
d0547cba 1050 vfd = video_devdata(file);
59b702ea 1051 *p = v4l2_prio_max(vfd->prio);
d0547cba
HV		 1052 return 0;
1053}
1054
1055static int v4l_s_priority(const struct v4l2_ioctl_ops *ops,
1056 struct file *file, void *fh, void *arg)
1057{
1058 struct video_device *vfd;
1059 struct v4l2_fh *vfh;
1060 u32 *p = arg;
1061
d0547cba 1062 vfd = video_devdata(file);
2438e78a
HV		 1063 if (!test_bit(V4L2_FL_USES_V4L2_FH, &vfd->flags))
1064 return -ENOTTY;
d0547cba 1065 vfh = file->private_data;
59b702ea 1066 return v4l2_prio_change(vfd->prio, &vfh->prio, *p);
d0547cba
HV		 1067}
1068
59076122
HV		 1069static int v4l_enuminput(const struct v4l2_ioctl_ops *ops,
1070 struct file *file, void *fh, void *arg)
1071{
73f35418 1072 struct video_device *vfd = video_devdata(file);
59076122
HV		 1073 struct v4l2_input *p = arg;
1074
1075 /*
02fa6282 1076 * We set the flags for CAP_DV_TIMINGS &
59076122
HV		 1077 * CAP_STD here based on ioctl handler provided by the
1078 * driver. If the driver doesn't support these
1079 * for a specific input, it must override these flags.
1080 */
73f35418 1081 if (is_valid_ioctl(vfd, VIDIOC_S_STD))
59076122 1082 p->capabilities |= V4L2_IN_CAP_STD;
59076122
HV		 1083
1084 return ops->vidioc_enum_input(file, fh, p);
1085}
1086
1087static int v4l_enumoutput(const struct v4l2_ioctl_ops *ops,
1088 struct file *file, void *fh, void *arg)
1089{
73f35418 1090 struct video_device *vfd = video_devdata(file);
59076122
HV		 1091 struct v4l2_output *p = arg;
1092
1093 /*
02fa6282 1094 * We set the flags for CAP_DV_TIMINGS &
59076122
HV		 1095 * CAP_STD here based on ioctl handler provided by the
1096 * driver. If the driver doesn't support these
1097 * for a specific output, it must override these flags.
1098 */
73f35418 1099 if (is_valid_ioctl(vfd, VIDIOC_S_STD))
59076122 1100 p->capabilities |= V4L2_OUT_CAP_STD;
59076122
HV		 1101
1102 return ops->vidioc_enum_output(file, fh, p);
1103}
1104
ba300204
HV		 1105static void v4l_fill_fmtdesc(struct v4l2_fmtdesc *fmt)
1106{
1107 const unsigned sz = sizeof(fmt->description);
1108 const char *descr = NULL;
1109 u32 flags = 0;
1110
1111 /*
1112 * We depart from the normal coding style here since the descriptions
1113 * should be aligned so it is easy to see which descriptions will be
1114 * longer than 31 characters (the max length for a description).
1115 * And frankly, this is easier to read anyway.
1116 *
1117 * Note that gcc will use O(log N) comparisons to find the right case.
1118 */
1119 switch (fmt->pixelformat) {
1120 /* Max description length mask: descr = "0123456789012345678901234567890" */
1121 case V4L2_PIX_FMT_RGB332: descr = "8-bit RGB 3-3-2"; break;
1122 case V4L2_PIX_FMT_RGB444: descr = "16-bit A/XRGB 4-4-4-4"; break;
1123 case V4L2_PIX_FMT_ARGB444: descr = "16-bit ARGB 4-4-4-4"; break;
1124 case V4L2_PIX_FMT_XRGB444: descr = "16-bit XRGB 4-4-4-4"; break;
1125 case V4L2_PIX_FMT_RGB555: descr = "16-bit A/XRGB 1-5-5-5"; break;
1126 case V4L2_PIX_FMT_ARGB555: descr = "16-bit ARGB 1-5-5-5"; break;
1127 case V4L2_PIX_FMT_XRGB555: descr = "16-bit XRGB 1-5-5-5"; break;
1128 case V4L2_PIX_FMT_RGB565: descr = "16-bit RGB 5-6-5"; break;
1129 case V4L2_PIX_FMT_RGB555X: descr = "16-bit A/XRGB 1-5-5-5 BE"; break;
1130 case V4L2_PIX_FMT_ARGB555X: descr = "16-bit ARGB 1-5-5-5 BE"; break;
1131 case V4L2_PIX_FMT_XRGB555X: descr = "16-bit XRGB 1-5-5-5 BE"; break;
1132 case V4L2_PIX_FMT_RGB565X: descr = "16-bit RGB 5-6-5 BE"; break;
1133 case V4L2_PIX_FMT_BGR666: descr = "18-bit BGRX 6-6-6-14"; break;
1134 case V4L2_PIX_FMT_BGR24: descr = "24-bit BGR 8-8-8"; break;
1135 case V4L2_PIX_FMT_RGB24: descr = "24-bit RGB 8-8-8"; break;
1136 case V4L2_PIX_FMT_BGR32: descr = "32-bit BGRA/X 8-8-8-8"; break;
1137 case V4L2_PIX_FMT_ABGR32: descr = "32-bit BGRA 8-8-8-8"; break;
1138 case V4L2_PIX_FMT_XBGR32: descr = "32-bit BGRX 8-8-8-8"; break;
1139 case V4L2_PIX_FMT_RGB32: descr = "32-bit A/XRGB 8-8-8-8"; break;
1140 case V4L2_PIX_FMT_ARGB32: descr = "32-bit ARGB 8-8-8-8"; break;
1141 case V4L2_PIX_FMT_XRGB32: descr = "32-bit XRGB 8-8-8-8"; break;
1142 case V4L2_PIX_FMT_GREY: descr = "8-bit Greyscale"; break;
1143 case V4L2_PIX_FMT_Y4: descr = "4-bit Greyscale"; break;
1144 case V4L2_PIX_FMT_Y6: descr = "6-bit Greyscale"; break;
1145 case V4L2_PIX_FMT_Y10: descr = "10-bit Greyscale"; break;
1146 case V4L2_PIX_FMT_Y12: descr = "12-bit Greyscale"; break;
1147 case V4L2_PIX_FMT_Y16: descr = "16-bit Greyscale"; break;
2e5e435f 1148 case V4L2_PIX_FMT_Y16_BE: descr = "16-bit Greyscale BE"; break;
ba300204 1149 case V4L2_PIX_FMT_Y10BPACK: descr = "10-bit Greyscale (Packed)"; break;
5b382290
LP		 1150 case V4L2_PIX_FMT_Y8I: descr = "Interleaved 8-bit Greyscale"; break;
1151 case V4L2_PIX_FMT_Y12I: descr = "Interleaved 12-bit Greyscale"; break;
1152 case V4L2_PIX_FMT_Z16: descr = "16-bit Depth"; break;
5df082e2 1153 case V4L2_PIX_FMT_INZI: descr = "Planar 10:16 Greyscale Depth"; break;
ba300204
HV		 1154 case V4L2_PIX_FMT_PAL8: descr = "8-bit Palette"; break;
1155 case V4L2_PIX_FMT_UV8: descr = "8-bit Chrominance UV 4-4"; break;
1156 case V4L2_PIX_FMT_YVU410: descr = "Planar YVU 4:1:0"; break;
1157 case V4L2_PIX_FMT_YVU420: descr = "Planar YVU 4:2:0"; break;
1158 case V4L2_PIX_FMT_YUYV: descr = "YUYV 4:2:2"; break;
1159 case V4L2_PIX_FMT_YYUV: descr = "YYUV 4:2:2"; break;
1160 case V4L2_PIX_FMT_YVYU: descr = "YVYU 4:2:2"; break;
1161 case V4L2_PIX_FMT_UYVY: descr = "UYVY 4:2:2"; break;
1162 case V4L2_PIX_FMT_VYUY: descr = "VYUY 4:2:2"; break;
fcbafafb 1163 case V4L2_PIX_FMT_YUV422P: descr = "Planar YUV 4:2:2"; break;
ba300204
HV		 1164 case V4L2_PIX_FMT_YUV411P: descr = "Planar YUV 4:1:1"; break;
1165 case V4L2_PIX_FMT_Y41P: descr = "YUV 4:1:1 (Packed)"; break;
1166 case V4L2_PIX_FMT_YUV444: descr = "16-bit A/XYUV 4-4-4-4"; break;
1167 case V4L2_PIX_FMT_YUV555: descr = "16-bit A/XYUV 1-5-5-5"; break;
1168 case V4L2_PIX_FMT_YUV565: descr = "16-bit YUV 5-6-5"; break;
1169 case V4L2_PIX_FMT_YUV32: descr = "32-bit A/XYUV 8-8-8-8"; break;
1170 case V4L2_PIX_FMT_YUV410: descr = "Planar YUV 4:1:0"; break;
1171 case V4L2_PIX_FMT_YUV420: descr = "Planar YUV 4:2:0"; break;
1172 case V4L2_PIX_FMT_HI240: descr = "8-bit Dithered RGB (BTTV)"; break;
1173 case V4L2_PIX_FMT_HM12: descr = "YUV 4:2:0 (16x16 Macroblocks)"; break;
1174 case V4L2_PIX_FMT_M420: descr = "YUV 4:2:0 (M420)"; break;
1175 case V4L2_PIX_FMT_NV12: descr = "Y/CbCr 4:2:0"; break;
1176 case V4L2_PIX_FMT_NV21: descr = "Y/CrCb 4:2:0"; break;
1177 case V4L2_PIX_FMT_NV16: descr = "Y/CbCr 4:2:2"; break;
1178 case V4L2_PIX_FMT_NV61: descr = "Y/CrCb 4:2:2"; break;
1179 case V4L2_PIX_FMT_NV24: descr = "Y/CbCr 4:4:4"; break;
1180 case V4L2_PIX_FMT_NV42: descr = "Y/CrCb 4:4:4"; break;
1181 case V4L2_PIX_FMT_NV12M: descr = "Y/CbCr 4:2:0 (N-C)"; break;
1182 case V4L2_PIX_FMT_NV21M: descr = "Y/CrCb 4:2:0 (N-C)"; break;
1183 case V4L2_PIX_FMT_NV16M: descr = "Y/CbCr 4:2:2 (N-C)"; break;
1184 case V4L2_PIX_FMT_NV61M: descr = "Y/CrCb 4:2:2 (N-C)"; break;
1185 case V4L2_PIX_FMT_NV12MT: descr = "Y/CbCr 4:2:0 (64x32 MB, N-C)"; break;
1186 case V4L2_PIX_FMT_NV12MT_16X16: descr = "Y/CbCr 4:2:0 (16x16 MB, N-C)"; break;
1187 case V4L2_PIX_FMT_YUV420M: descr = "Planar YUV 4:2:0 (N-C)"; break;
1188 case V4L2_PIX_FMT_YVU420M: descr = "Planar YVU 4:2:0 (N-C)"; break;
d65fae92
LP		 1189 case V4L2_PIX_FMT_YUV422M: descr = "Planar YUV 4:2:2 (N-C)"; break;
1190 case V4L2_PIX_FMT_YVU422M: descr = "Planar YVU 4:2:2 (N-C)"; break;
1191 case V4L2_PIX_FMT_YUV444M: descr = "Planar YUV 4:4:4 (N-C)"; break;
1192 case V4L2_PIX_FMT_YVU444M: descr = "Planar YVU 4:4:4 (N-C)"; break;
ba300204
HV		 1193 case V4L2_PIX_FMT_SBGGR8: descr = "8-bit Bayer BGBG/GRGR"; break;
1194 case V4L2_PIX_FMT_SGBRG8: descr = "8-bit Bayer GBGB/RGRG"; break;
1195 case V4L2_PIX_FMT_SGRBG8: descr = "8-bit Bayer GRGR/BGBG"; break;
1196 case V4L2_PIX_FMT_SRGGB8: descr = "8-bit Bayer RGRG/GBGB"; break;
1197 case V4L2_PIX_FMT_SBGGR10: descr = "10-bit Bayer BGBG/GRGR"; break;
1198 case V4L2_PIX_FMT_SGBRG10: descr = "10-bit Bayer GBGB/RGRG"; break;
1199 case V4L2_PIX_FMT_SGRBG10: descr = "10-bit Bayer GRGR/BGBG"; break;
1200 case V4L2_PIX_FMT_SRGGB10: descr = "10-bit Bayer RGRG/GBGB"; break;
ba300204
HV		 1201 case V4L2_PIX_FMT_SBGGR10P: descr = "10-bit Bayer BGBG/GRGR Packed"; break;
1202 case V4L2_PIX_FMT_SGBRG10P: descr = "10-bit Bayer GBGB/RGRG Packed"; break;
1203 case V4L2_PIX_FMT_SGRBG10P: descr = "10-bit Bayer GRGR/BGBG Packed"; break;
1204 case V4L2_PIX_FMT_SRGGB10P: descr = "10-bit Bayer RGRG/GBGB Packed"; break;
1205 case V4L2_PIX_FMT_SBGGR10ALAW8: descr = "8-bit Bayer BGBG/GRGR (A-law)"; break;
1206 case V4L2_PIX_FMT_SGBRG10ALAW8: descr = "8-bit Bayer GBGB/RGRG (A-law)"; break;
1207 case V4L2_PIX_FMT_SGRBG10ALAW8: descr = "8-bit Bayer GRGR/BGBG (A-law)"; break;
1208 case V4L2_PIX_FMT_SRGGB10ALAW8: descr = "8-bit Bayer RGRG/GBGB (A-law)"; break;
1209 case V4L2_PIX_FMT_SBGGR10DPCM8: descr = "8-bit Bayer BGBG/GRGR (DPCM)"; break;
1210 case V4L2_PIX_FMT_SGBRG10DPCM8: descr = "8-bit Bayer GBGB/RGRG (DPCM)"; break;
1211 case V4L2_PIX_FMT_SGRBG10DPCM8: descr = "8-bit Bayer GRGR/BGBG (DPCM)"; break;
1212 case V4L2_PIX_FMT_SRGGB10DPCM8: descr = "8-bit Bayer RGRG/GBGB (DPCM)"; break;
d1b3437e
SA		 1213 case V4L2_PIX_FMT_SBGGR12: descr = "12-bit Bayer BGBG/GRGR"; break;
1214 case V4L2_PIX_FMT_SGBRG12: descr = "12-bit Bayer GBGB/RGRG"; break;
1215 case V4L2_PIX_FMT_SGRBG12: descr = "12-bit Bayer GRGR/BGBG"; break;
1216 case V4L2_PIX_FMT_SRGGB12: descr = "12-bit Bayer RGRG/GBGB"; break;
1217 case V4L2_PIX_FMT_SBGGR12P: descr = "12-bit Bayer BGBG/GRGR Packed"; break;
1218 case V4L2_PIX_FMT_SGBRG12P: descr = "12-bit Bayer GBGB/RGRG Packed"; break;
1219 case V4L2_PIX_FMT_SGRBG12P: descr = "12-bit Bayer GRGR/BGBG Packed"; break;
1220 case V4L2_PIX_FMT_SRGGB12P: descr = "12-bit Bayer RGRG/GBGB Packed"; break;
b9a4b13c
SA		 1221 case V4L2_PIX_FMT_SBGGR16: descr = "16-bit Bayer BGBG/GRGR"; break;
1222 case V4L2_PIX_FMT_SGBRG16: descr = "16-bit Bayer GBGB/RGRG"; break;
1223 case V4L2_PIX_FMT_SGRBG16: descr = "16-bit Bayer GRGR/BGBG"; break;
1224 case V4L2_PIX_FMT_SRGGB16: descr = "16-bit Bayer RGRG/GBGB"; break;
99b74277 1225 case V4L2_PIX_FMT_SN9C20X_I420: descr = "GSPCA SN9C20X I420"; break;
ba300204
HV		 1226 case V4L2_PIX_FMT_SPCA501: descr = "GSPCA SPCA501"; break;
1227 case V4L2_PIX_FMT_SPCA505: descr = "GSPCA SPCA505"; break;
1228 case V4L2_PIX_FMT_SPCA508: descr = "GSPCA SPCA508"; break;
1229 case V4L2_PIX_FMT_STV0680: descr = "GSPCA STV0680"; break;
1230 case V4L2_PIX_FMT_TM6000: descr = "A/V + VBI Mux Packet"; break;
1231 case V4L2_PIX_FMT_CIT_YYVYUY: descr = "GSPCA CIT YYVYUY"; break;
1232 case V4L2_PIX_FMT_KONICA420: descr = "GSPCA KONICA420"; break;
66b2ab27
RRD		 1233 case V4L2_PIX_FMT_HSV24: descr = "24-bit HSV 8-8-8"; break;
1234 case V4L2_PIX_FMT_HSV32: descr = "32-bit XHSV 8-8-8-8"; break;
48fc10aa
AP		 1235 case V4L2_SDR_FMT_CU8: descr = "Complex U8"; break;
1236 case V4L2_SDR_FMT_CU16LE: descr = "Complex U16LE"; break;
ba300204
HV		 1237 case V4L2_SDR_FMT_CS8: descr = "Complex S8"; break;
1238 case V4L2_SDR_FMT_CS14LE: descr = "Complex S14LE"; break;
1239 case V4L2_SDR_FMT_RU12LE: descr = "Real U12LE"; break;
c28f2118
RS		 1240 case V4L2_SDR_FMT_PCU16BE: descr = "Planar Complex U16BE"; break;
1241 case V4L2_SDR_FMT_PCU18BE: descr = "Planar Complex U18BE"; break;
1242 case V4L2_SDR_FMT_PCU20BE: descr = "Planar Complex U20BE"; break;
b2fe22d0
ND		 1243 case V4L2_TCH_FMT_DELTA_TD16: descr = "16-bit signed deltas"; break;
1244 case V4L2_TCH_FMT_DELTA_TD08: descr = "8-bit signed deltas"; break;
1245 case V4L2_TCH_FMT_TU16: descr = "16-bit unsigned touch data"; break;
1246 case V4L2_TCH_FMT_TU08: descr = "8-bit unsigned touch data"; break;
14d66538 1247 case V4L2_META_FMT_VSP1_HGO: descr = "R-Car VSP1 1-D Histogram"; break;
5deb1c04 1248 case V4L2_META_FMT_VSP1_HGT: descr = "R-Car VSP1 2-D Histogram"; break;
ba300204
HV		 1249
1250 default:
1251 /* Compressed formats */
1252 flags = V4L2_FMT_FLAG_COMPRESSED;
1253 switch (fmt->pixelformat) {
1254 /* Max description length mask: descr = "0123456789012345678901234567890" */
1255 case V4L2_PIX_FMT_MJPEG: descr = "Motion-JPEG"; break;
1256 case V4L2_PIX_FMT_JPEG: descr = "JFIF JPEG"; break;
1257 case V4L2_PIX_FMT_DV: descr = "1394"; break;
1258 case V4L2_PIX_FMT_MPEG: descr = "MPEG-1/2/4"; break;
1259 case V4L2_PIX_FMT_H264: descr = "H.264"; break;
1260 case V4L2_PIX_FMT_H264_NO_SC: descr = "H.264 (No Start Codes)"; break;
1261 case V4L2_PIX_FMT_H264_MVC: descr = "H.264 MVC"; break;
1262 case V4L2_PIX_FMT_H263: descr = "H.263"; break;
1263 case V4L2_PIX_FMT_MPEG1: descr = "MPEG-1 ES"; break;
1264 case V4L2_PIX_FMT_MPEG2: descr = "MPEG-2 ES"; break;
1265 case V4L2_PIX_FMT_MPEG4: descr = "MPEG-4 part 2 ES"; break;
1266 case V4L2_PIX_FMT_XVID: descr = "Xvid"; break;
1267 case V4L2_PIX_FMT_VC1_ANNEX_G: descr = "VC-1 (SMPTE 412M Annex G)"; break;
1268 case V4L2_PIX_FMT_VC1_ANNEX_L: descr = "VC-1 (SMPTE 412M Annex L)"; break;
1269 case V4L2_PIX_FMT_VP8: descr = "VP8"; break;
fa14a564 1270 case V4L2_PIX_FMT_VP9: descr = "VP9"; break;
ba300204
HV		 1271 case V4L2_PIX_FMT_CPIA1: descr = "GSPCA CPiA YUV"; break;
1272 case V4L2_PIX_FMT_WNVA: descr = "WNVA"; break;
1273 case V4L2_PIX_FMT_SN9C10X: descr = "GSPCA SN9C10X"; break;
1274 case V4L2_PIX_FMT_PWC1: descr = "Raw Philips Webcam Type (Old)"; break;
1275 case V4L2_PIX_FMT_PWC2: descr = "Raw Philips Webcam Type (New)"; break;
1276 case V4L2_PIX_FMT_ET61X251: descr = "GSPCA ET61X251"; break;
1277 case V4L2_PIX_FMT_SPCA561: descr = "GSPCA SPCA561"; break;
1278 case V4L2_PIX_FMT_PAC207: descr = "GSPCA PAC207"; break;
1279 case V4L2_PIX_FMT_MR97310A: descr = "GSPCA MR97310A"; break;
1280 case V4L2_PIX_FMT_JL2005BCD: descr = "GSPCA JL2005BCD"; break;
1281 case V4L2_PIX_FMT_SN9C2028: descr = "GSPCA SN9C2028"; break;
1282 case V4L2_PIX_FMT_SQ905C: descr = "GSPCA SQ905C"; break;
1283 case V4L2_PIX_FMT_PJPG: descr = "GSPCA PJPG"; break;
1284 case V4L2_PIX_FMT_OV511: descr = "GSPCA OV511"; break;
1285 case V4L2_PIX_FMT_OV518: descr = "GSPCA OV518"; break;
1286 case V4L2_PIX_FMT_JPGL: descr = "JPEG Lite"; break;
1287 case V4L2_PIX_FMT_SE401: descr = "GSPCA SE401"; break;
1288 case V4L2_PIX_FMT_S5C_UYVY_JPG: descr = "S5C73MX interleaved UYVY/JPEG"; break;
d4de6634 1289 case V4L2_PIX_FMT_MT21C: descr = "Mediatek Compressed Format"; break;
ba300204
HV		 1290 default:
1291 WARN(1, "Unknown pixelformat 0x%08x\n", fmt->pixelformat);
1292 if (fmt->description[0])
1293 return;
1294 flags = 0;
1295 snprintf(fmt->description, sz, "%c%c%c%c%s",
1296 (char)(fmt->pixelformat & 0x7f),
1297 (char)((fmt->pixelformat >> 8) & 0x7f),
1298 (char)((fmt->pixelformat >> 16) & 0x7f),
1299 (char)((fmt->pixelformat >> 24) & 0x7f),
1300 (fmt->pixelformat & (1 << 31)) ? "-BE" : "");
1301 break;
1302 }
1303 }
1304
1305 if (descr)
1306 WARN_ON(strlcpy(fmt->description, descr, sz) >= sz);
1307 fmt->flags = flags;
1308}
1309
be6c64e4
HV		 1310static int v4l_enum_fmt(const struct v4l2_ioctl_ops *ops,
1311 struct file *file, void *fh, void *arg)
1312{
1313 struct v4l2_fmtdesc *p = arg;
4b20259f 1314 struct video_device *vfd = video_devdata(file);
ce71bbc9
HV		 1315 bool is_vid = vfd->vfl_type == VFL_TYPE_GRABBER;
1316 bool is_sdr = vfd->vfl_type == VFL_TYPE_SDR;
b2fe22d0 1317 bool is_tch = vfd->vfl_type == VFL_TYPE_TOUCH;
4b20259f
HV		 1318 bool is_rx = vfd->vfl_dir != VFL_DIR_TX;
1319 bool is_tx = vfd->vfl_dir != VFL_DIR_RX;
ba300204 1320 int ret = -EINVAL;
be6c64e4
HV		 1321
1322 switch (p->type) {
1323 case V4L2_BUF_TYPE_VIDEO_CAPTURE:
b2fe22d0 1324 if (unlikely(!is_rx || (!is_vid && !is_tch) || !ops->vidioc_enum_fmt_vid_cap))
be6c64e4 1325 break;
ba300204
HV		 1326 ret = ops->vidioc_enum_fmt_vid_cap(file, fh, arg);
1327 break;
be6c64e4 1328 case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE:
ce71bbc9 1329 if (unlikely(!is_rx || !is_vid || !ops->vidioc_enum_fmt_vid_cap_mplane))
be6c64e4 1330 break;
ba300204
HV		 1331 ret = ops->vidioc_enum_fmt_vid_cap_mplane(file, fh, arg);
1332 break;
be6c64e4 1333 case V4L2_BUF_TYPE_VIDEO_OVERLAY:
ce71bbc9 1334 if (unlikely(!is_rx || !is_vid || !ops->vidioc_enum_fmt_vid_overlay))
be6c64e4 1335 break;
ba300204
HV		 1336 ret = ops->vidioc_enum_fmt_vid_overlay(file, fh, arg);
1337 break;
be6c64e4 1338 case V4L2_BUF_TYPE_VIDEO_OUTPUT:
ce71bbc9 1339 if (unlikely(!is_tx || !is_vid || !ops->vidioc_enum_fmt_vid_out))
be6c64e4 1340 break;
ba300204
HV		 1341 ret = ops->vidioc_enum_fmt_vid_out(file, fh, arg);
1342 break;
be6c64e4 1343 case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE:
ce71bbc9 1344 if (unlikely(!is_tx || !is_vid || !ops->vidioc_enum_fmt_vid_out_mplane))
be6c64e4 1345 break;
ba300204
HV		 1346 ret = ops->vidioc_enum_fmt_vid_out_mplane(file, fh, arg);
1347 break;
582c52cb 1348 case V4L2_BUF_TYPE_SDR_CAPTURE:
ce71bbc9 1349 if (unlikely(!is_rx || !is_sdr || !ops->vidioc_enum_fmt_sdr_cap))
582c52cb 1350 break;
ba300204
HV		 1351 ret = ops->vidioc_enum_fmt_sdr_cap(file, fh, arg);
1352 break;
9effc72f
AP		 1353 case V4L2_BUF_TYPE_SDR_OUTPUT:
1354 if (unlikely(!is_tx || !is_sdr || !ops->vidioc_enum_fmt_sdr_out))
1355 break;
1356 ret = ops->vidioc_enum_fmt_sdr_out(file, fh, arg);
1357 break;
fb9ffa6a
LP		 1358 case V4L2_BUF_TYPE_META_CAPTURE:
1359 if (unlikely(!is_rx || !is_vid || !ops->vidioc_enum_fmt_meta_cap))
1360 break;
1361 ret = ops->vidioc_enum_fmt_meta_cap(file, fh, arg);
1362 break;
be6c64e4 1363 }
ba300204
HV		 1364 if (ret == 0)
1365 v4l_fill_fmtdesc(p);
1366 return ret;
be6c64e4
HV		 1367}
1368
1369static int v4l_g_fmt(const struct v4l2_ioctl_ops *ops,
1370 struct file *file, void *fh, void *arg)
1371{
1372 struct v4l2_format *p = arg;
4b20259f
HV		 1373 struct video_device *vfd = video_devdata(file);
1374 bool is_vid = vfd->vfl_type == VFL_TYPE_GRABBER;
582c52cb 1375 bool is_sdr = vfd->vfl_type == VFL_TYPE_SDR;
b2fe22d0 1376 bool is_tch = vfd->vfl_type == VFL_TYPE_TOUCH;
4b20259f
HV		 1377 bool is_rx = vfd->vfl_dir != VFL_DIR_TX;
1378 bool is_tx = vfd->vfl_dir != VFL_DIR_RX;
d52e2381
LP		 1379 int ret;
1380
e5ce558a
HV		 1381 /*
1382 * fmt can't be cleared for these overlay types due to the 'clips'
1383 * 'clipcount' and 'bitmap' pointers in struct v4l2_window.
1384 * Those are provided by the user. So handle these two overlay types
1385 * first, and then just do a simple memset for the other types.
1386 */
1387 switch (p->type) {
1388 case V4L2_BUF_TYPE_VIDEO_OVERLAY:
1389 case V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY: {
4d1afa51 1390 struct v4l2_clip __user *clips = p->fmt.win.clips;
e5ce558a 1391 u32 clipcount = p->fmt.win.clipcount;
4d1afa51 1392 void __user *bitmap = p->fmt.win.bitmap;
e5ce558a
HV		 1393
1394 memset(&p->fmt, 0, sizeof(p->fmt));
1395 p->fmt.win.clips = clips;
1396 p->fmt.win.clipcount = clipcount;
1397 p->fmt.win.bitmap = bitmap;
1398 break;
1399 }
1400 default:
1401 memset(&p->fmt, 0, sizeof(p->fmt));
1402 break;
1403 }
1404
be6c64e4
HV		 1405 switch (p->type) {
1406 case V4L2_BUF_TYPE_VIDEO_CAPTURE:
b2fe22d0 1407 if (unlikely(!is_rx || (!is_vid && !is_tch) || !ops->vidioc_g_fmt_vid_cap))
be6c64e4 1408 break;
48f2650a 1409 p->fmt.pix.priv = V4L2_PIX_FMT_PRIV_MAGIC;
d52e2381 1410 ret = ops->vidioc_g_fmt_vid_cap(file, fh, arg);
48f2650a 1411 /* just in case the driver zeroed it again */
d52e2381
LP		 1412 p->fmt.pix.priv = V4L2_PIX_FMT_PRIV_MAGIC;
1413 return ret;
be6c64e4 1414 case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE:
4b20259f 1415 if (unlikely(!is_rx || !is_vid || !ops->vidioc_g_fmt_vid_cap_mplane))
be6c64e4
HV		 1416 break;
1417 return ops->vidioc_g_fmt_vid_cap_mplane(file, fh, arg);
1418 case V4L2_BUF_TYPE_VIDEO_OVERLAY:
4b20259f 1419 if (unlikely(!is_rx || !is_vid || !ops->vidioc_g_fmt_vid_overlay))
be6c64e4
HV		 1420 break;
1421 return ops->vidioc_g_fmt_vid_overlay(file, fh, arg);
4b20259f
HV		 1422 case V4L2_BUF_TYPE_VBI_CAPTURE:
1423 if (unlikely(!is_rx || is_vid || !ops->vidioc_g_fmt_vbi_cap))
1424 break;
1425 return ops->vidioc_g_fmt_vbi_cap(file, fh, arg);
1426 case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE:
1427 if (unlikely(!is_rx || is_vid || !ops->vidioc_g_fmt_sliced_vbi_cap))
1428 break;
1429 return ops->vidioc_g_fmt_sliced_vbi_cap(file, fh, arg);
be6c64e4 1430 case V4L2_BUF_TYPE_VIDEO_OUTPUT:
4b20259f 1431 if (unlikely(!is_tx || !is_vid || !ops->vidioc_g_fmt_vid_out))
be6c64e4 1432 break;
48f2650a 1433 p->fmt.pix.priv = V4L2_PIX_FMT_PRIV_MAGIC;
d52e2381 1434 ret = ops->vidioc_g_fmt_vid_out(file, fh, arg);
48f2650a 1435 /* just in case the driver zeroed it again */
d52e2381
LP		 1436 p->fmt.pix.priv = V4L2_PIX_FMT_PRIV_MAGIC;
1437 return ret;
be6c64e4 1438 case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE:
4b20259f 1439 if (unlikely(!is_tx || !is_vid || !ops->vidioc_g_fmt_vid_out_mplane))
be6c64e4
HV		 1440 break;
1441 return ops->vidioc_g_fmt_vid_out_mplane(file, fh, arg);
1442 case V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY:
4b20259f 1443 if (unlikely(!is_tx || !is_vid || !ops->vidioc_g_fmt_vid_out_overlay))
be6c64e4
HV		 1444 break;
1445 return ops->vidioc_g_fmt_vid_out_overlay(file, fh, arg);
be6c64e4 1446 case V4L2_BUF_TYPE_VBI_OUTPUT:
4b20259f 1447 if (unlikely(!is_tx || is_vid || !ops->vidioc_g_fmt_vbi_out))
be6c64e4
HV		 1448 break;
1449 return ops->vidioc_g_fmt_vbi_out(file, fh, arg);
be6c64e4 1450 case V4L2_BUF_TYPE_SLICED_VBI_OUTPUT:
4b20259f 1451 if (unlikely(!is_tx || is_vid || !ops->vidioc_g_fmt_sliced_vbi_out))
be6c64e4
HV		 1452 break;
1453 return ops->vidioc_g_fmt_sliced_vbi_out(file, fh, arg);
582c52cb
AP		 1454 case V4L2_BUF_TYPE_SDR_CAPTURE:
1455 if (unlikely(!is_rx || !is_sdr || !ops->vidioc_g_fmt_sdr_cap))
1456 break;
1457 return ops->vidioc_g_fmt_sdr_cap(file, fh, arg);
9effc72f
AP		 1458 case V4L2_BUF_TYPE_SDR_OUTPUT:
1459 if (unlikely(!is_tx || !is_sdr || !ops->vidioc_g_fmt_sdr_out))
1460 break;
1461 return ops->vidioc_g_fmt_sdr_out(file, fh, arg);
fb9ffa6a
LP		 1462 case V4L2_BUF_TYPE_META_CAPTURE:
1463 if (unlikely(!is_rx || !is_vid || !ops->vidioc_g_fmt_meta_cap))
1464 break;
1465 return ops->vidioc_g_fmt_meta_cap(file, fh, arg);
be6c64e4
HV		 1466 }
1467 return -EINVAL;
1468}
1469
b2fe22d0
ND		 1470static void v4l_pix_format_touch(struct v4l2_pix_format *p)
1471{
1472 /*
1473 * The v4l2_pix_format structure contains fields that make no sense for
1474 * touch. Set them to default values in this case.
1475 */
1476
1477 p->field = V4L2_FIELD_NONE;
1478 p->colorspace = V4L2_COLORSPACE_RAW;
1479 p->flags = 0;
1480 p->ycbcr_enc = 0;
1481 p->quantization = 0;
1482 p->xfer_func = 0;
1483}
1484
be6c64e4
HV		 1485static int v4l_s_fmt(const struct v4l2_ioctl_ops *ops,
1486 struct file *file, void *fh, void *arg)
1487{
1488 struct v4l2_format *p = arg;
4b20259f
HV		 1489 struct video_device *vfd = video_devdata(file);
1490 bool is_vid = vfd->vfl_type == VFL_TYPE_GRABBER;
582c52cb 1491 bool is_sdr = vfd->vfl_type == VFL_TYPE_SDR;
b2fe22d0 1492 bool is_tch = vfd->vfl_type == VFL_TYPE_TOUCH;
4b20259f
HV		 1493 bool is_rx = vfd->vfl_dir != VFL_DIR_TX;
1494 bool is_tx = vfd->vfl_dir != VFL_DIR_RX;
48f2650a 1495 int ret;
be6c64e4 1496
77fa4e07
SK		 1497 ret = v4l_enable_media_source(vfd);
1498 if (ret)
1499 return ret;
d52e2381
LP		 1500 v4l_sanitize_format(p);
1501
be6c64e4
HV		 1502 switch (p->type) {
1503 case V4L2_BUF_TYPE_VIDEO_CAPTURE:
b2fe22d0 1504 if (unlikely(!is_rx || (!is_vid && !is_tch) || !ops->vidioc_s_fmt_vid_cap))
be6c64e4
HV		 1505 break;
1506 CLEAR_AFTER_FIELD(p, fmt.pix);
48f2650a
HV		 1507 ret = ops->vidioc_s_fmt_vid_cap(file, fh, arg);
1508 /* just in case the driver zeroed it again */
1509 p->fmt.pix.priv = V4L2_PIX_FMT_PRIV_MAGIC;
b2fe22d0
ND		 1510 if (is_tch)
1511 v4l_pix_format_touch(&p->fmt.pix);
48f2650a 1512 return ret;
be6c64e4 1513 case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE:
4b20259f 1514 if (unlikely(!is_rx || !is_vid || !ops->vidioc_s_fmt_vid_cap_mplane))
be6c64e4 1515 break;
c49148e8 1516 CLEAR_AFTER_FIELD(p, fmt.pix_mp.xfer_func);
be6c64e4
HV		 1517 return ops->vidioc_s_fmt_vid_cap_mplane(file, fh, arg);
1518 case V4L2_BUF_TYPE_VIDEO_OVERLAY:
4b20259f 1519 if (unlikely(!is_rx || !is_vid || !ops->vidioc_s_fmt_vid_overlay))
be6c64e4
HV		 1520 break;
1521 CLEAR_AFTER_FIELD(p, fmt.win);
1522 return ops->vidioc_s_fmt_vid_overlay(file, fh, arg);
4b20259f
HV		 1523 case V4L2_BUF_TYPE_VBI_CAPTURE:
1524 if (unlikely(!is_rx || is_vid || !ops->vidioc_s_fmt_vbi_cap))
1525 break;
1526 CLEAR_AFTER_FIELD(p, fmt.vbi);
1527 return ops->vidioc_s_fmt_vbi_cap(file, fh, arg);
1528 case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE:
1529 if (unlikely(!is_rx || is_vid || !ops->vidioc_s_fmt_sliced_vbi_cap))
1530 break;
1531 CLEAR_AFTER_FIELD(p, fmt.sliced);
1532 return ops->vidioc_s_fmt_sliced_vbi_cap(file, fh, arg);
be6c64e4 1533 case V4L2_BUF_TYPE_VIDEO_OUTPUT:
4b20259f 1534 if (unlikely(!is_tx || !is_vid || !ops->vidioc_s_fmt_vid_out))
be6c64e4
HV		 1535 break;
1536 CLEAR_AFTER_FIELD(p, fmt.pix);
48f2650a
HV		 1537 ret = ops->vidioc_s_fmt_vid_out(file, fh, arg);
1538 /* just in case the driver zeroed it again */
1539 p->fmt.pix.priv = V4L2_PIX_FMT_PRIV_MAGIC;
1540 return ret;
be6c64e4 1541 case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE:
4b20259f 1542 if (unlikely(!is_tx || !is_vid || !ops->vidioc_s_fmt_vid_out_mplane))
be6c64e4 1543 break;
c49148e8 1544 CLEAR_AFTER_FIELD(p, fmt.pix_mp.xfer_func);
be6c64e4
HV		 1545 return ops->vidioc_s_fmt_vid_out_mplane(file, fh, arg);
1546 case V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY:
4b20259f 1547 if (unlikely(!is_tx || !is_vid || !ops->vidioc_s_fmt_vid_out_overlay))
be6c64e4
HV		 1548 break;
1549 CLEAR_AFTER_FIELD(p, fmt.win);
1550 return ops->vidioc_s_fmt_vid_out_overlay(file, fh, arg);
be6c64e4 1551 case V4L2_BUF_TYPE_VBI_OUTPUT:
4b20259f 1552 if (unlikely(!is_tx || is_vid || !ops->vidioc_s_fmt_vbi_out))
be6c64e4
HV		 1553 break;
1554 CLEAR_AFTER_FIELD(p, fmt.vbi);
1555 return ops->vidioc_s_fmt_vbi_out(file, fh, arg);
be6c64e4 1556 case V4L2_BUF_TYPE_SLICED_VBI_OUTPUT:
4b20259f 1557 if (unlikely(!is_tx || is_vid || !ops->vidioc_s_fmt_sliced_vbi_out))
be6c64e4
HV		 1558 break;
1559 CLEAR_AFTER_FIELD(p, fmt.sliced);
1560 return ops->vidioc_s_fmt_sliced_vbi_out(file, fh, arg);
582c52cb
AP		 1561 case V4L2_BUF_TYPE_SDR_CAPTURE:
1562 if (unlikely(!is_rx || !is_sdr || !ops->vidioc_s_fmt_sdr_cap))
1563 break;
1564 CLEAR_AFTER_FIELD(p, fmt.sdr);
1565 return ops->vidioc_s_fmt_sdr_cap(file, fh, arg);
9effc72f
AP		 1566 case V4L2_BUF_TYPE_SDR_OUTPUT:
1567 if (unlikely(!is_tx || !is_sdr || !ops->vidioc_s_fmt_sdr_out))
1568 break;
1569 CLEAR_AFTER_FIELD(p, fmt.sdr);
1570 return ops->vidioc_s_fmt_sdr_out(file, fh, arg);
fb9ffa6a
LP		 1571 case V4L2_BUF_TYPE_META_CAPTURE:
1572 if (unlikely(!is_rx || !is_vid || !ops->vidioc_s_fmt_meta_cap))
1573 break;
1574 CLEAR_AFTER_FIELD(p, fmt.meta);
1575 return ops->vidioc_s_fmt_meta_cap(file, fh, arg);
be6c64e4
HV		 1576 }
1577 return -EINVAL;
1578}
1579
1580static int v4l_try_fmt(const struct v4l2_ioctl_ops *ops,
1581 struct file *file, void *fh, void *arg)
1582{
1583 struct v4l2_format *p = arg;
4b20259f
HV		 1584 struct video_device *vfd = video_devdata(file);
1585 bool is_vid = vfd->vfl_type == VFL_TYPE_GRABBER;
582c52cb 1586 bool is_sdr = vfd->vfl_type == VFL_TYPE_SDR;
b2fe22d0 1587 bool is_tch = vfd->vfl_type == VFL_TYPE_TOUCH;
4b20259f
HV		 1588 bool is_rx = vfd->vfl_dir != VFL_DIR_TX;
1589 bool is_tx = vfd->vfl_dir != VFL_DIR_RX;
48f2650a 1590 int ret;
be6c64e4 1591
d52e2381
LP		 1592 v4l_sanitize_format(p);
1593
be6c64e4
HV		 1594 switch (p->type) {
1595 case V4L2_BUF_TYPE_VIDEO_CAPTURE:
b2fe22d0 1596 if (unlikely(!is_rx || (!is_vid && !is_tch) || !ops->vidioc_try_fmt_vid_cap))
be6c64e4
HV		 1597 break;
1598 CLEAR_AFTER_FIELD(p, fmt.pix);
48f2650a
HV		 1599 ret = ops->vidioc_try_fmt_vid_cap(file, fh, arg);
1600 /* just in case the driver zeroed it again */
1601 p->fmt.pix.priv = V4L2_PIX_FMT_PRIV_MAGIC;
1602 return ret;
be6c64e4 1603 case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE:
4b20259f 1604 if (unlikely(!is_rx || !is_vid || !ops->vidioc_try_fmt_vid_cap_mplane))
be6c64e4 1605 break;
c49148e8 1606 CLEAR_AFTER_FIELD(p, fmt.pix_mp.xfer_func);
be6c64e4
HV		 1607 return ops->vidioc_try_fmt_vid_cap_mplane(file, fh, arg);
1608 case V4L2_BUF_TYPE_VIDEO_OVERLAY:
4b20259f 1609 if (unlikely(!is_rx || !is_vid || !ops->vidioc_try_fmt_vid_overlay))
be6c64e4
HV		 1610 break;
1611 CLEAR_AFTER_FIELD(p, fmt.win);
1612 return ops->vidioc_try_fmt_vid_overlay(file, fh, arg);
4b20259f
HV		 1613 case V4L2_BUF_TYPE_VBI_CAPTURE:
1614 if (unlikely(!is_rx || is_vid || !ops->vidioc_try_fmt_vbi_cap))
1615 break;
1616 CLEAR_AFTER_FIELD(p, fmt.vbi);
1617 return ops->vidioc_try_fmt_vbi_cap(file, fh, arg);
1618 case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE:
1619 if (unlikely(!is_rx || is_vid || !ops->vidioc_try_fmt_sliced_vbi_cap))
1620 break;
1621 CLEAR_AFTER_FIELD(p, fmt.sliced);
1622 return ops->vidioc_try_fmt_sliced_vbi_cap(file, fh, arg);
be6c64e4 1623 case V4L2_BUF_TYPE_VIDEO_OUTPUT:
4b20259f 1624 if (unlikely(!is_tx || !is_vid || !ops->vidioc_try_fmt_vid_out))
be6c64e4
HV		 1625 break;
1626 CLEAR_AFTER_FIELD(p, fmt.pix);
48f2650a
HV		 1627 ret = ops->vidioc_try_fmt_vid_out(file, fh, arg);
1628 /* just in case the driver zeroed it again */
1629 p->fmt.pix.priv = V4L2_PIX_FMT_PRIV_MAGIC;
1630 return ret;
be6c64e4 1631 case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE:
4b20259f 1632 if (unlikely(!is_tx || !is_vid || !ops->vidioc_try_fmt_vid_out_mplane))
be6c64e4 1633 break;
c49148e8 1634 CLEAR_AFTER_FIELD(p, fmt.pix_mp.xfer_func);
be6c64e4
HV		 1635 return ops->vidioc_try_fmt_vid_out_mplane(file, fh, arg);
1636 case V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY:
4b20259f 1637 if (unlikely(!is_tx || !is_vid || !ops->vidioc_try_fmt_vid_out_overlay))
be6c64e4
HV		 1638 break;
1639 CLEAR_AFTER_FIELD(p, fmt.win);
1640 return ops->vidioc_try_fmt_vid_out_overlay(file, fh, arg);
be6c64e4 1641 case V4L2_BUF_TYPE_VBI_OUTPUT:
4b20259f 1642 if (unlikely(!is_tx || is_vid || !ops->vidioc_try_fmt_vbi_out))
be6c64e4
HV		 1643 break;
1644 CLEAR_AFTER_FIELD(p, fmt.vbi);
1645 return ops->vidioc_try_fmt_vbi_out(file, fh, arg);
be6c64e4 1646 case V4L2_BUF_TYPE_SLICED_VBI_OUTPUT:
4b20259f 1647 if (unlikely(!is_tx || is_vid || !ops->vidioc_try_fmt_sliced_vbi_out))
be6c64e4
HV		 1648 break;
1649 CLEAR_AFTER_FIELD(p, fmt.sliced);
1650 return ops->vidioc_try_fmt_sliced_vbi_out(file, fh, arg);
582c52cb
AP		 1651 case V4L2_BUF_TYPE_SDR_CAPTURE:
1652 if (unlikely(!is_rx || !is_sdr || !ops->vidioc_try_fmt_sdr_cap))
1653 break;
1654 CLEAR_AFTER_FIELD(p, fmt.sdr);
1655 return ops->vidioc_try_fmt_sdr_cap(file, fh, arg);
9effc72f
AP		 1656 case V4L2_BUF_TYPE_SDR_OUTPUT:
1657 if (unlikely(!is_tx || !is_sdr || !ops->vidioc_try_fmt_sdr_out))
1658 break;
1659 CLEAR_AFTER_FIELD(p, fmt.sdr);
1660 return ops->vidioc_try_fmt_sdr_out(file, fh, arg);
fb9ffa6a
LP		 1661 case V4L2_BUF_TYPE_META_CAPTURE:
1662 if (unlikely(!is_rx || !is_vid || !ops->vidioc_try_fmt_meta_cap))
1663 break;
1664 CLEAR_AFTER_FIELD(p, fmt.meta);
1665 return ops->vidioc_try_fmt_meta_cap(file, fh, arg);
be6c64e4
HV		 1666 }
1667 return -EINVAL;
1668}
1669
e325b244
HV		 1670static int v4l_streamon(const struct v4l2_ioctl_ops *ops,
1671 struct file *file, void *fh, void *arg)
1672{
1673 return ops->vidioc_streamon(file, fh, *(unsigned int *)arg);
1674}
1675
1676static int v4l_streamoff(const struct v4l2_ioctl_ops *ops,
1677 struct file *file, void *fh, void *arg)
1678{
1679 return ops->vidioc_streamoff(file, fh, *(unsigned int *)arg);
1680}
1681
4b1e2e4d
HV		 1682static int v4l_g_tuner(const struct v4l2_ioctl_ops *ops,
1683 struct file *file, void *fh, void *arg)
1684{
1685 struct video_device *vfd = video_devdata(file);
1686 struct v4l2_tuner *p = arg;
82b655bf 1687 int err;
4b1e2e4d
HV		 1688
1689 p->type = (vfd->vfl_type == VFL_TYPE_RADIO) ?
1690 V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV;
82b655bf
HV		 1691 err = ops->vidioc_g_tuner(file, fh, p);
1692 if (!err)
1693 p->capability |= V4L2_TUNER_CAP_FREQ_BANDS;
1694 return err;
4b1e2e4d
HV		 1695}
1696
1697static int v4l_s_tuner(const struct v4l2_ioctl_ops *ops,
1698 struct file *file, void *fh, void *arg)
1699{
1700 struct video_device *vfd = video_devdata(file);
1701 struct v4l2_tuner *p = arg;
77fa4e07 1702 int ret;
4b1e2e4d 1703
77fa4e07
SK		 1704 ret = v4l_enable_media_source(vfd);
1705 if (ret)
1706 return ret;
4b1e2e4d
HV		 1707 p->type = (vfd->vfl_type == VFL_TYPE_RADIO) ?
1708 V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV;
1709 return ops->vidioc_s_tuner(file, fh, p);
1710}
1711
82b655bf
HV		 1712static int v4l_g_modulator(const struct v4l2_ioctl_ops *ops,
1713 struct file *file, void *fh, void *arg)
1714{
4124a3c4 1715 struct video_device *vfd = video_devdata(file);
82b655bf
HV		 1716 struct v4l2_modulator *p = arg;
1717 int err;
1718
4124a3c4
AP		 1719 if (vfd->vfl_type == VFL_TYPE_RADIO)
1720 p->type = V4L2_TUNER_RADIO;
1721
82b655bf
HV		 1722 err = ops->vidioc_g_modulator(file, fh, p);
1723 if (!err)
1724 p->capability |= V4L2_TUNER_CAP_FREQ_BANDS;
1725 return err;
1726}
1727
4124a3c4
AP		 1728static int v4l_s_modulator(const struct v4l2_ioctl_ops *ops,
1729 struct file *file, void *fh, void *arg)
1730{
1731 struct video_device *vfd = video_devdata(file);
1732 struct v4l2_modulator *p = arg;
1733
1734 if (vfd->vfl_type == VFL_TYPE_RADIO)
1735 p->type = V4L2_TUNER_RADIO;
1736
1737 return ops->vidioc_s_modulator(file, fh, p);
1738}
1739
4b1e2e4d
HV		 1740static int v4l_g_frequency(const struct v4l2_ioctl_ops *ops,
1741 struct file *file, void *fh, void *arg)
1742{
1743 struct video_device *vfd = video_devdata(file);
1744 struct v4l2_frequency *p = arg;
1745
84099a28 1746 if (vfd->vfl_type == VFL_TYPE_SDR)
f3c3ecec 1747 p->type = V4L2_TUNER_SDR;
84099a28
AP		 1748 else
1749 p->type = (vfd->vfl_type == VFL_TYPE_RADIO) ?
1750 V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV;
4b1e2e4d
HV		 1751 return ops->vidioc_g_frequency(file, fh, p);
1752}
1753
1754static int v4l_s_frequency(const struct v4l2_ioctl_ops *ops,
1755 struct file *file, void *fh, void *arg)
1756{
1757 struct video_device *vfd = video_devdata(file);
b530a447 1758 const struct v4l2_frequency *p = arg;
4b1e2e4d 1759 enum v4l2_tuner_type type;
77fa4e07 1760 int ret;
4b1e2e4d 1761
77fa4e07
SK		 1762 ret = v4l_enable_media_source(vfd);
1763 if (ret)
1764 return ret;
84099a28 1765 if (vfd->vfl_type == VFL_TYPE_SDR) {
f3c3ecec 1766 if (p->type != V4L2_TUNER_SDR && p->type != V4L2_TUNER_RF)
84099a28
AP		 1767 return -EINVAL;
1768 } else {
1769 type = (vfd->vfl_type == VFL_TYPE_RADIO) ?
1770 V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV;
1771 if (type != p->type)
1772 return -EINVAL;
1773 }
4b1e2e4d
HV		 1774 return ops->vidioc_s_frequency(file, fh, p);
1775}
1776
1777static int v4l_enumstd(const struct v4l2_ioctl_ops *ops,
1778 struct file *file, void *fh, void *arg)
1779{
1780 struct video_device *vfd = video_devdata(file);
1781 struct v4l2_standard *p = arg;
1782 v4l2_std_id id = vfd->tvnorms, curr_id = 0;
1783 unsigned int index = p->index, i, j = 0;
1784 const char *descr = "";
1785
a5338190
HV		 1786 /* Return -ENODATA if the tvnorms for the current input
1787 or output is 0, meaning that it doesn't support this API. */
1788 if (id == 0)
1789 return -ENODATA;
1790
4b1e2e4d
HV		 1791 /* Return norm array in a canonical way */
1792 for (i = 0; i <= index && id; i++) {
1793 /* last std value in the standards array is 0, so this
1794 while always ends there since (id & 0) == 0. */
1795 while ((id & standards[j].std) != standards[j].std)
1796 j++;
1797 curr_id = standards[j].std;
1798 descr = standards[j].descr;
1799 j++;
1800 if (curr_id == 0)
1801 break;
1802 if (curr_id != V4L2_STD_PAL &&
1803 curr_id != V4L2_STD_SECAM &&
1804 curr_id != V4L2_STD_NTSC)
1805 id &= ~curr_id;
1806 }
1807 if (i <= index)
1808 return -EINVAL;
1809
1810 v4l2_video_std_construct(p, curr_id, descr);
1811 return 0;
1812}
1813
4b1e2e4d
HV		 1814static int v4l_s_std(const struct v4l2_ioctl_ops *ops,
1815 struct file *file, void *fh, void *arg)
1816{
1817 struct video_device *vfd = video_devdata(file);
314527ac 1818 v4l2_std_id id = *(v4l2_std_id *)arg, norm;
77fa4e07 1819 int ret;
4b1e2e4d 1820
77fa4e07
SK		 1821 ret = v4l_enable_media_source(vfd);
1822 if (ret)
1823 return ret;
314527ac 1824 norm = id & vfd->tvnorms;
4b1e2e4d
HV		 1825 if (vfd->tvnorms && !norm) /* Check if std is supported */
1826 return -EINVAL;
1827
1828 /* Calls the specific handler */
ca371575 1829 return ops->vidioc_s_std(file, fh, norm);
4b1e2e4d
HV		 1830}
1831
1832static int v4l_querystd(const struct v4l2_ioctl_ops *ops,
1833 struct file *file, void *fh, void *arg)
1834{
1835 struct video_device *vfd = video_devdata(file);
1836 v4l2_std_id *p = arg;
77fa4e07 1837 int ret;
4b1e2e4d 1838
77fa4e07
SK		 1839 ret = v4l_enable_media_source(vfd);
1840 if (ret)
1841 return ret;
4b1e2e4d 1842 /*
1a2c6866
HV		 1843 * If no signal is detected, then the driver should return
1844 * V4L2_STD_UNKNOWN. Otherwise it should return tvnorms with
1845 * any standards that do not apply removed.
1846 *
4b1e2e4d
HV		 1847 * This means that tuners, audio and video decoders can join
1848 * their efforts to improve the standards detection.
1849 */
1850 *p = vfd->tvnorms;
1851 return ops->vidioc_querystd(file, fh, arg);
1852}
1853
1854static int v4l_s_hw_freq_seek(const struct v4l2_ioctl_ops *ops,
1855 struct file *file, void *fh, void *arg)
1856{
1857 struct video_device *vfd = video_devdata(file);
1858 struct v4l2_hw_freq_seek *p = arg;
1859 enum v4l2_tuner_type type;
77fa4e07 1860 int ret;
4b1e2e4d 1861
77fa4e07
SK		 1862 ret = v4l_enable_media_source(vfd);
1863 if (ret)
1864 return ret;
84099a28
AP		 1865 /* s_hw_freq_seek is not supported for SDR for now */
1866 if (vfd->vfl_type == VFL_TYPE_SDR)
1867 return -EINVAL;
1868
4b1e2e4d
HV		 1869 type = (vfd->vfl_type == VFL_TYPE_RADIO) ?
1870 V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV;
1871 if (p->type != type)
1872 return -EINVAL;
1873 return ops->vidioc_s_hw_freq_seek(file, fh, p);
1874}
1875
737c097b
HV		 1876static int v4l_overlay(const struct v4l2_ioctl_ops *ops,
1877 struct file *file, void *fh, void *arg)
1878{
1879 return ops->vidioc_overlay(file, fh, *(unsigned int *)arg);
1880}
1881
eb3728ed
HV		 1882static int v4l_reqbufs(const struct v4l2_ioctl_ops *ops,
1883 struct file *file, void *fh, void *arg)
1884{
1885 struct v4l2_requestbuffers *p = arg;
4b20259f 1886 int ret = check_fmt(file, p->type);
eb3728ed
HV		 1887
1888 if (ret)
1889 return ret;
1890
633c98e5 1891 CLEAR_AFTER_FIELD(p, memory);
eb3728ed
HV		 1892
1893 return ops->vidioc_reqbufs(file, fh, p);
1894}
1895
1896static int v4l_querybuf(const struct v4l2_ioctl_ops *ops,
1897 struct file *file, void *fh, void *arg)
1898{
1899 struct v4l2_buffer *p = arg;
4b20259f 1900 int ret = check_fmt(file, p->type);
eb3728ed
HV		 1901
1902 return ret ? ret : ops->vidioc_querybuf(file, fh, p);
1903}
1904
1905static int v4l_qbuf(const struct v4l2_ioctl_ops *ops,
1906 struct file *file, void *fh, void *arg)
1907{
1908 struct v4l2_buffer *p = arg;
4b20259f 1909 int ret = check_fmt(file, p->type);
eb3728ed
HV		 1910
1911 return ret ? ret : ops->vidioc_qbuf(file, fh, p);
1912}
1913
1914static int v4l_dqbuf(const struct v4l2_ioctl_ops *ops,
1915 struct file *file, void *fh, void *arg)
1916{
1917 struct v4l2_buffer *p = arg;
4b20259f 1918 int ret = check_fmt(file, p->type);
eb3728ed
HV		 1919
1920 return ret ? ret : ops->vidioc_dqbuf(file, fh, p);
1921}
1922
1923static int v4l_create_bufs(const struct v4l2_ioctl_ops *ops,
1924 struct file *file, void *fh, void *arg)
1925{
1926 struct v4l2_create_buffers *create = arg;
4b20259f 1927 int ret = check_fmt(file, create->format.type);
eb3728ed 1928
d52e2381
LP		 1929 if (ret)
1930 return ret;
1931
5d351251
HV		 1932 CLEAR_AFTER_FIELD(create, format);
1933
d52e2381
LP		 1934 v4l_sanitize_format(&create->format);
1935
1936 ret = ops->vidioc_create_bufs(file, fh, create);
1937
1938 if (create->format.type == V4L2_BUF_TYPE_VIDEO_CAPTURE ||
1939 create->format.type == V4L2_BUF_TYPE_VIDEO_OUTPUT)
1940 create->format.fmt.pix.priv = V4L2_PIX_FMT_PRIV_MAGIC;
1941
1942 return ret;
eb3728ed
HV		 1943}
1944
1945static int v4l_prepare_buf(const struct v4l2_ioctl_ops *ops,
1946 struct file *file, void *fh, void *arg)
1947{
1948 struct v4l2_buffer *b = arg;
4b20259f 1949 int ret = check_fmt(file, b->type);
eb3728ed
HV		 1950
1951 return ret ? ret : ops->vidioc_prepare_buf(file, fh, b);
1952}
1953
1954static int v4l_g_parm(const struct v4l2_ioctl_ops *ops,
1955 struct file *file, void *fh, void *arg)
1956{
eb3728ed
HV		 1957 struct v4l2_streamparm *p = arg;
1958 v4l2_std_id std;
4b20259f 1959 int ret = check_fmt(file, p->type);
eb3728ed
HV		 1960
1961 if (ret)
1962 return ret;
1963 if (ops->vidioc_g_parm)
1964 return ops->vidioc_g_parm(file, fh, p);
eb3728ed
HV		 1965 if (p->type != V4L2_BUF_TYPE_VIDEO_CAPTURE &&
1966 p->type != V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE)
1967 return -EINVAL;
1968 p->parm.capture.readbuffers = 2;
ca371575 1969 ret = ops->vidioc_g_std(file, fh, &std);
eb3728ed 1970 if (ret == 0)
ca371575 1971 v4l2_video_std_frame_period(std, &p->parm.capture.timeperframe);
eb3728ed
HV		 1972 return ret;
1973}
1974
1975static int v4l_s_parm(const struct v4l2_ioctl_ops *ops,
1976 struct file *file, void *fh, void *arg)
1977{
1978 struct v4l2_streamparm *p = arg;
4b20259f 1979 int ret = check_fmt(file, p->type);
eb3728ed
HV		 1980
1981 return ret ? ret : ops->vidioc_s_parm(file, fh, p);
1982}
1983
efbceecd
HV		 1984static int v4l_queryctrl(const struct v4l2_ioctl_ops *ops,
1985 struct file *file, void *fh, void *arg)
1986{
1987 struct video_device *vfd = video_devdata(file);
1988 struct v4l2_queryctrl *p = arg;
7a3ed2d9
HV		 1989 struct v4l2_fh *vfh =
1990 test_bit(V4L2_FL_USES_V4L2_FH, &vfd->flags) ? fh : NULL;
efbceecd
HV		 1991
1992 if (vfh && vfh->ctrl_handler)
1993 return v4l2_queryctrl(vfh->ctrl_handler, p);
1994 if (vfd->ctrl_handler)
1995 return v4l2_queryctrl(vfd->ctrl_handler, p);
1996 if (ops->vidioc_queryctrl)
1997 return ops->vidioc_queryctrl(file, fh, p);
1998 return -ENOTTY;
1999}
2000
e6bee368
HV		 2001static int v4l_query_ext_ctrl(const struct v4l2_ioctl_ops *ops,
2002 struct file *file, void *fh, void *arg)
2003{
2004 struct video_device *vfd = video_devdata(file);
2005 struct v4l2_query_ext_ctrl *p = arg;
2006 struct v4l2_fh *vfh =
2007 test_bit(V4L2_FL_USES_V4L2_FH, &vfd->flags) ? fh : NULL;
2008
2009 if (vfh && vfh->ctrl_handler)
2010 return v4l2_query_ext_ctrl(vfh->ctrl_handler, p);
2011 if (vfd->ctrl_handler)
2012 return v4l2_query_ext_ctrl(vfd->ctrl_handler, p);
2013 if (ops->vidioc_query_ext_ctrl)
2014 return ops->vidioc_query_ext_ctrl(file, fh, p);
2015 return -ENOTTY;
2016}
2017
efbceecd
HV		 2018static int v4l_querymenu(const struct v4l2_ioctl_ops *ops,
2019 struct file *file, void *fh, void *arg)
2020{
2021 struct video_device *vfd = video_devdata(file);
2022 struct v4l2_querymenu *p = arg;
7a3ed2d9
HV		 2023 struct v4l2_fh *vfh =
2024 test_bit(V4L2_FL_USES_V4L2_FH, &vfd->flags) ? fh : NULL;
efbceecd
HV		 2025
2026 if (vfh && vfh->ctrl_handler)
2027 return v4l2_querymenu(vfh->ctrl_handler, p);
2028 if (vfd->ctrl_handler)
2029 return v4l2_querymenu(vfd->ctrl_handler, p);
2030 if (ops->vidioc_querymenu)
2031 return ops->vidioc_querymenu(file, fh, p);
2032 return -ENOTTY;
2033}
2034
2035static int v4l_g_ctrl(const struct v4l2_ioctl_ops *ops,
2036 struct file *file, void *fh, void *arg)
2037{
2038 struct video_device *vfd = video_devdata(file);
2039 struct v4l2_control *p = arg;
7a3ed2d9
HV		 2040 struct v4l2_fh *vfh =
2041 test_bit(V4L2_FL_USES_V4L2_FH, &vfd->flags) ? fh : NULL;
efbceecd
HV		 2042 struct v4l2_ext_controls ctrls;
2043 struct v4l2_ext_control ctrl;
2044
2045 if (vfh && vfh->ctrl_handler)
2046 return v4l2_g_ctrl(vfh->ctrl_handler, p);
2047 if (vfd->ctrl_handler)
2048 return v4l2_g_ctrl(vfd->ctrl_handler, p);
2049 if (ops->vidioc_g_ctrl)
2050 return ops->vidioc_g_ctrl(file, fh, p);
2051 if (ops->vidioc_g_ext_ctrls == NULL)
2052 return -ENOTTY;
2053
0f8017be 2054 ctrls.which = V4L2_CTRL_ID2WHICH(p->id);
efbceecd
HV		 2055 ctrls.count = 1;
2056 ctrls.controls = &ctrl;
2057 ctrl.id = p->id;
2058 ctrl.value = p->value;
2059 if (check_ext_ctrls(&ctrls, 1)) {
2060 int ret = ops->vidioc_g_ext_ctrls(file, fh, &ctrls);
2061
2062 if (ret == 0)
2063 p->value = ctrl.value;
2064 return ret;
2065 }
2066 return -EINVAL;
2067}
2068
2069static int v4l_s_ctrl(const struct v4l2_ioctl_ops *ops,
2070 struct file *file, void *fh, void *arg)
2071{
2072 struct video_device *vfd = video_devdata(file);
2073 struct v4l2_control *p = arg;
7a3ed2d9
HV		 2074 struct v4l2_fh *vfh =
2075 test_bit(V4L2_FL_USES_V4L2_FH, &vfd->flags) ? fh : NULL;
efbceecd
HV		 2076 struct v4l2_ext_controls ctrls;
2077 struct v4l2_ext_control ctrl;
2078
2079 if (vfh && vfh->ctrl_handler)
2080 return v4l2_s_ctrl(vfh, vfh->ctrl_handler, p);
2081 if (vfd->ctrl_handler)
2082 return v4l2_s_ctrl(NULL, vfd->ctrl_handler, p);
2083 if (ops->vidioc_s_ctrl)
2084 return ops->vidioc_s_ctrl(file, fh, p);
2085 if (ops->vidioc_s_ext_ctrls == NULL)
2086 return -ENOTTY;
2087
0f8017be 2088 ctrls.which = V4L2_CTRL_ID2WHICH(p->id);
efbceecd
HV		 2089 ctrls.count = 1;
2090 ctrls.controls = &ctrl;
2091 ctrl.id = p->id;
2092 ctrl.value = p->value;
2093 if (check_ext_ctrls(&ctrls, 1))
2094 return ops->vidioc_s_ext_ctrls(file, fh, &ctrls);
2095 return -EINVAL;
2096}
2097
2098static int v4l_g_ext_ctrls(const struct v4l2_ioctl_ops *ops,
2099 struct file *file, void *fh, void *arg)
2100{
2101 struct video_device *vfd = video_devdata(file);
2102 struct v4l2_ext_controls *p = arg;
7a3ed2d9
HV		 2103 struct v4l2_fh *vfh =
2104 test_bit(V4L2_FL_USES_V4L2_FH, &vfd->flags) ? fh : NULL;
efbceecd
HV		 2105
2106 p->error_idx = p->count;
2107 if (vfh && vfh->ctrl_handler)
2108 return v4l2_g_ext_ctrls(vfh->ctrl_handler, p);
2109 if (vfd->ctrl_handler)
2110 return v4l2_g_ext_ctrls(vfd->ctrl_handler, p);
2111 if (ops->vidioc_g_ext_ctrls == NULL)
2112 return -ENOTTY;
2113 return check_ext_ctrls(p, 0) ? ops->vidioc_g_ext_ctrls(file, fh, p) :
2114 -EINVAL;
2115}
2116
2117static int v4l_s_ext_ctrls(const struct v4l2_ioctl_ops *ops,
2118 struct file *file, void *fh, void *arg)
2119{
2120 struct video_device *vfd = video_devdata(file);
2121 struct v4l2_ext_controls *p = arg;
7a3ed2d9
HV		 2122 struct v4l2_fh *vfh =
2123 test_bit(V4L2_FL_USES_V4L2_FH, &vfd->flags) ? fh : NULL;
efbceecd
HV		 2124
2125 p->error_idx = p->count;
2126 if (vfh && vfh->ctrl_handler)
2127 return v4l2_s_ext_ctrls(vfh, vfh->ctrl_handler, p);
2128 if (vfd->ctrl_handler)
2129 return v4l2_s_ext_ctrls(NULL, vfd->ctrl_handler, p);
2130 if (ops->vidioc_s_ext_ctrls == NULL)
2131 return -ENOTTY;
2132 return check_ext_ctrls(p, 0) ? ops->vidioc_s_ext_ctrls(file, fh, p) :
2133 -EINVAL;
2134}
2135
2136static int v4l_try_ext_ctrls(const struct v4l2_ioctl_ops *ops,
2137 struct file *file, void *fh, void *arg)
2138{
2139 struct video_device *vfd = video_devdata(file);
2140 struct v4l2_ext_controls *p = arg;
7a3ed2d9
HV		 2141 struct v4l2_fh *vfh =
2142 test_bit(V4L2_FL_USES_V4L2_FH, &vfd->flags) ? fh : NULL;
efbceecd
HV		 2143
2144 p->error_idx = p->count;
2145 if (vfh && vfh->ctrl_handler)
2146 return v4l2_try_ext_ctrls(vfh->ctrl_handler, p);
2147 if (vfd->ctrl_handler)
2148 return v4l2_try_ext_ctrls(vfd->ctrl_handler, p);
2149 if (ops->vidioc_try_ext_ctrls == NULL)
2150 return -ENOTTY;
2151 return check_ext_ctrls(p, 0) ? ops->vidioc_try_ext_ctrls(file, fh, p) :
2152 -EINVAL;
2153}
2154
eaec420f
HV		 2155/*
2156 * The selection API specified originally that the _MPLANE buffer types
2157 * shouldn't be used. The reasons for this are lost in the mists of time
2158 * (or just really crappy memories). Regardless, this is really annoying
2159 * for userspace. So to keep things simple we map _MPLANE buffer types
2160 * to their 'regular' counterparts before calling the driver. And we
2161 * restore it afterwards. This way applications can use either buffer
2162 * type and drivers don't need to check for both.
2163 */
2164static int v4l_g_selection(const struct v4l2_ioctl_ops *ops,
2165 struct file *file, void *fh, void *arg)
2166{
2167 struct v4l2_selection *p = arg;
2168 u32 old_type = p->type;
2169 int ret;
2170
2171 if (p->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE)
2172 p->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
2173 else if (p->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE)
2174 p->type = V4L2_BUF_TYPE_VIDEO_OUTPUT;
2175 ret = ops->vidioc_g_selection(file, fh, p);
2176 p->type = old_type;
2177 return ret;
2178}
2179
2180static int v4l_s_selection(const struct v4l2_ioctl_ops *ops,
2181 struct file *file, void *fh, void *arg)
2182{
2183 struct v4l2_selection *p = arg;
2184 u32 old_type = p->type;
2185 int ret;
2186
2187 if (p->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE)
2188 p->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
2189 else if (p->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE)
2190 p->type = V4L2_BUF_TYPE_VIDEO_OUTPUT;
2191 ret = ops->vidioc_s_selection(file, fh, p);
2192 p->type = old_type;
2193 return ret;
2194}
2195
d84f2d94
HV		 2196static int v4l_g_crop(const struct v4l2_ioctl_ops *ops,
2197 struct file *file, void *fh, void *arg)
2198{
2199 struct v4l2_crop *p = arg;
2200 struct v4l2_selection s = {
2201 .type = p->type,
2202 };
2203 int ret;
2204
2205 if (ops->vidioc_g_crop)
2206 return ops->vidioc_g_crop(file, fh, p);
2207 /* simulate capture crop using selection api */
2208
2209 /* crop means compose for output devices */
2210 if (V4L2_TYPE_IS_OUTPUT(p->type))
2211 s.target = V4L2_SEL_TGT_COMPOSE_ACTIVE;
2212 else
2213 s.target = V4L2_SEL_TGT_CROP_ACTIVE;
2214
eaec420f 2215 ret = v4l_g_selection(ops, file, fh, &s);
d84f2d94
HV		 2216
2217 /* copying results to old structure on success */
2218 if (!ret)
2219 p->c = s.r;
2220 return ret;
2221}
2222
2223static int v4l_s_crop(const struct v4l2_ioctl_ops *ops,
2224 struct file *file, void *fh, void *arg)
2225{
2226 struct v4l2_crop *p = arg;
2227 struct v4l2_selection s = {
2228 .type = p->type,
2229 .r = p->c,
2230 };
2231
2232 if (ops->vidioc_s_crop)
2233 return ops->vidioc_s_crop(file, fh, p);
2234 /* simulate capture crop using selection api */
2235
2236 /* crop means compose for output devices */
2237 if (V4L2_TYPE_IS_OUTPUT(p->type))
2238 s.target = V4L2_SEL_TGT_COMPOSE_ACTIVE;
2239 else
2240 s.target = V4L2_SEL_TGT_CROP_ACTIVE;
2241
eaec420f 2242 return v4l_s_selection(ops, file, fh, &s);
d84f2d94
HV		 2243}
2244
2245static int v4l_cropcap(const struct v4l2_ioctl_ops *ops,
2246 struct file *file, void *fh, void *arg)
2247{
2248 struct v4l2_cropcap *p = arg;
95dd7b7e
HV		 2249 struct v4l2_selection s = { .type = p->type };
2250 int ret = 0;
d84f2d94 2251
95dd7b7e
HV		 2252 /* setting trivial pixelaspect */
2253 p->pixelaspect.numerator = 1;
2254 p->pixelaspect.denominator = 1;
d84f2d94 2255
95dd7b7e
HV		 2256 /*
2257 * The determine_valid_ioctls() call already should ensure
2258 * that this can never happen, but just in case...
2259 */
1ca830b1 2260 if (WARN_ON(!ops->vidioc_cropcap && !ops->vidioc_g_selection))
95dd7b7e 2261 return -ENOTTY;
d84f2d94 2262
95dd7b7e
HV		 2263 if (ops->vidioc_cropcap)
2264 ret = ops->vidioc_cropcap(file, fh, p);
d84f2d94 2265
95dd7b7e
HV		 2266 if (!ops->vidioc_g_selection)
2267 return ret;
d84f2d94 2268
95dd7b7e
HV		 2269 /*
2270 * Ignore ENOTTY or ENOIOCTLCMD error returns, just use the
2271 * square pixel aspect ratio in that case.
2272 */
2273 if (ret && ret != -ENOTTY && ret != -ENOIOCTLCMD)
2274 return ret;
d84f2d94 2275
95dd7b7e 2276 /* Use g_selection() to fill in the bounds and defrect rectangles */
9409945c 2277
95dd7b7e
HV		 2278 /* obtaining bounds */
2279 if (V4L2_TYPE_IS_OUTPUT(p->type))
2280 s.target = V4L2_SEL_TGT_COMPOSE_BOUNDS;
2281 else
2282 s.target = V4L2_SEL_TGT_CROP_BOUNDS;
2283
eaec420f 2284 ret = v4l_g_selection(ops, file, fh, &s);
95dd7b7e
HV		 2285 if (ret)
2286 return ret;
2287 p->bounds = s.r;
2288
2289 /* obtaining defrect */
2290 if (V4L2_TYPE_IS_OUTPUT(p->type))
2291 s.target = V4L2_SEL_TGT_COMPOSE_DEFAULT;
2292 else
2293 s.target = V4L2_SEL_TGT_CROP_DEFAULT;
2294
eaec420f 2295 ret = v4l_g_selection(ops, file, fh, &s);
95dd7b7e
HV		 2296 if (ret)
2297 return ret;
2298 p->defrect = s.r;
9409945c 2299
d84f2d94
HV		 2300 return 0;
2301}
2302
f16f77b0
HV		 2303static int v4l_log_status(const struct v4l2_ioctl_ops *ops,
2304 struct file *file, void *fh, void *arg)
2305{
2306 struct video_device *vfd = video_devdata(file);
2307 int ret;
2308
2309 if (vfd->v4l2_dev)
2310 pr_info("%s: ================= START STATUS =================\n",
2311 vfd->v4l2_dev->name);
2312 ret = ops->vidioc_log_status(file, fh);
2313 if (vfd->v4l2_dev)
2314 pr_info("%s: ================== END STATUS ==================\n",
2315 vfd->v4l2_dev->name);
2316 return ret;
2317}
2318
2319static int v4l_dbg_g_register(const struct v4l2_ioctl_ops *ops,
2320 struct file *file, void *fh, void *arg)
2321{
2322#ifdef CONFIG_VIDEO_ADV_DEBUG
2323 struct v4l2_dbg_register *p = arg;
79b0c640
HV		 2324 struct video_device *vfd = video_devdata(file);
2325 struct v4l2_subdev *sd;
2326 int idx = 0;
f16f77b0
HV		 2327
2328 if (!capable(CAP_SYS_ADMIN))
2329 return -EPERM;
3eef2510 2330 if (p->match.type == V4L2_CHIP_MATCH_SUBDEV) {
79b0c640
HV		 2331 if (vfd->v4l2_dev == NULL)
2332 return -EINVAL;
3eef2510
HV		 2333 v4l2_device_for_each_subdev(sd, vfd->v4l2_dev)
2334 if (p->match.addr == idx++)
79b0c640 2335 return v4l2_subdev_call(sd, core, g_register, p);
79b0c640
HV		 2336 return -EINVAL;
2337 }
191b79b0
HV		 2338 if (ops->vidioc_g_register && p->match.type == V4L2_CHIP_MATCH_BRIDGE &&
2339 (ops->vidioc_g_chip_info || p->match.addr == 0))
79b0c640
HV		 2340 return ops->vidioc_g_register(file, fh, p);
2341 return -EINVAL;
f16f77b0
HV		 2342#else
2343 return -ENOTTY;
2344#endif
2345}
2346
2347static int v4l_dbg_s_register(const struct v4l2_ioctl_ops *ops,
2348 struct file *file, void *fh, void *arg)
2349{
2350#ifdef CONFIG_VIDEO_ADV_DEBUG
977ba3b1 2351 const struct v4l2_dbg_register *p = arg;
79b0c640
HV		 2352 struct video_device *vfd = video_devdata(file);
2353 struct v4l2_subdev *sd;
2354 int idx = 0;
f16f77b0
HV		 2355
2356 if (!capable(CAP_SYS_ADMIN))
2357 return -EPERM;
3eef2510 2358 if (p->match.type == V4L2_CHIP_MATCH_SUBDEV) {
79b0c640
HV		 2359 if (vfd->v4l2_dev == NULL)
2360 return -EINVAL;
3eef2510
HV		 2361 v4l2_device_for_each_subdev(sd, vfd->v4l2_dev)
2362 if (p->match.addr == idx++)
79b0c640 2363 return v4l2_subdev_call(sd, core, s_register, p);
79b0c640
HV		 2364 return -EINVAL;
2365 }
191b79b0
HV		 2366 if (ops->vidioc_s_register && p->match.type == V4L2_CHIP_MATCH_BRIDGE &&
2367 (ops->vidioc_g_chip_info || p->match.addr == 0))
79b0c640
HV		 2368 return ops->vidioc_s_register(file, fh, p);
2369 return -EINVAL;
f16f77b0
HV		 2370#else
2371 return -ENOTTY;
2372#endif
2373}
2374
96b03d2a 2375static int v4l_dbg_g_chip_info(const struct v4l2_ioctl_ops *ops,
79b0c640
HV		 2376 struct file *file, void *fh, void *arg)
2377{
cd634f1b 2378#ifdef CONFIG_VIDEO_ADV_DEBUG
79b0c640 2379 struct video_device *vfd = video_devdata(file);
96b03d2a 2380 struct v4l2_dbg_chip_info *p = arg;
79b0c640
HV		 2381 struct v4l2_subdev *sd;
2382 int idx = 0;
2383
2384 switch (p->match.type) {
2385 case V4L2_CHIP_MATCH_BRIDGE:
79b0c640
HV		 2386 if (ops->vidioc_s_register)
2387 p->flags |= V4L2_CHIP_FL_WRITABLE;
2388 if (ops->vidioc_g_register)
2389 p->flags |= V4L2_CHIP_FL_READABLE;
1c1d86a1 2390 strlcpy(p->name, vfd->v4l2_dev->name, sizeof(p->name));
96b03d2a
HV		 2391 if (ops->vidioc_g_chip_info)
2392 return ops->vidioc_g_chip_info(file, fh, arg);
0f0fe4b9
HV		 2393 if (p->match.addr)
2394 return -EINVAL;
79b0c640
HV		 2395 return 0;
2396
3eef2510 2397 case V4L2_CHIP_MATCH_SUBDEV:
79b0c640
HV		 2398 if (vfd->v4l2_dev == NULL)
2399 break;
2400 v4l2_device_for_each_subdev(sd, vfd->v4l2_dev) {
3eef2510
HV		 2401 if (p->match.addr != idx++)
2402 continue;
2403 if (sd->ops->core && sd->ops->core->s_register)
2404 p->flags |= V4L2_CHIP_FL_WRITABLE;
2405 if (sd->ops->core && sd->ops->core->g_register)
2406 p->flags |= V4L2_CHIP_FL_READABLE;
2407 strlcpy(p->name, sd->name, sizeof(p->name));
2408 return 0;
79b0c640
HV		 2409 }
2410 break;
2411 }
2412 return -EINVAL;
cd634f1b
HV		 2413#else
2414 return -ENOTTY;
2415#endif
79b0c640
HV		 2416}
2417
458aa4a6
HV		 2418static int v4l_dqevent(const struct v4l2_ioctl_ops *ops,
2419 struct file *file, void *fh, void *arg)
2420{
2421 return v4l2_event_dequeue(fh, arg, file->f_flags & O_NONBLOCK);
2422}
2423
2424static int v4l_subscribe_event(const struct v4l2_ioctl_ops *ops,
2425 struct file *file, void *fh, void *arg)
2426{
2427 return ops->vidioc_subscribe_event(fh, arg);
2428}
2429
2430static int v4l_unsubscribe_event(const struct v4l2_ioctl_ops *ops,
2431 struct file *file, void *fh, void *arg)
2432{
2433 return ops->vidioc_unsubscribe_event(fh, arg);
2434}
2435
2436static int v4l_g_sliced_vbi_cap(const struct v4l2_ioctl_ops *ops,
2437 struct file *file, void *fh, void *arg)
2438{
2439 struct v4l2_sliced_vbi_cap *p = arg;
4b20259f
HV		 2440 int ret = check_fmt(file, p->type);
2441
2442 if (ret)
2443 return ret;
458aa4a6
HV		 2444
2445 /* Clear up to type, everything after type is zeroed already */
2446 memset(p, 0, offsetof(struct v4l2_sliced_vbi_cap, type));
2447
2448 return ops->vidioc_g_sliced_vbi_cap(file, fh, p);
2449}
2450
82b655bf
HV		 2451static int v4l_enum_freq_bands(const struct v4l2_ioctl_ops *ops,
2452 struct file *file, void *fh, void *arg)
2453{
2454 struct video_device *vfd = video_devdata(file);
2455 struct v4l2_frequency_band *p = arg;
2456 enum v4l2_tuner_type type;
2457 int err;
2458
84099a28 2459 if (vfd->vfl_type == VFL_TYPE_SDR) {
f3c3ecec 2460 if (p->type != V4L2_TUNER_SDR && p->type != V4L2_TUNER_RF)
84099a28
AP		 2461 return -EINVAL;
2462 type = p->type;
2463 } else {
2464 type = (vfd->vfl_type == VFL_TYPE_RADIO) ?
2465 V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV;
2466 if (type != p->type)
2467 return -EINVAL;
2468 }
a7f404af
HV		 2469 if (ops->vidioc_enum_freq_bands) {
2470 err = ops->vidioc_enum_freq_bands(file, fh, p);
2471 if (err != -ENOTTY)
2472 return err;
2473 }
73f35418 2474 if (is_valid_ioctl(vfd, VIDIOC_G_TUNER)) {
82b655bf
HV		 2475 struct v4l2_tuner t = {
2476 .index = p->tuner,
2477 .type = type,
2478 };
2479
aa4d9b53
HV		 2480 if (p->index)
2481 return -EINVAL;
82b655bf
HV		 2482 err = ops->vidioc_g_tuner(file, fh, &t);
2483 if (err)
2484 return err;
2485 p->capability = t.capability | V4L2_TUNER_CAP_FREQ_BANDS;
2486 p->rangelow = t.rangelow;
2487 p->rangehigh = t.rangehigh;
2488 p->modulation = (type == V4L2_TUNER_RADIO) ?
2489 V4L2_BAND_MODULATION_FM : V4L2_BAND_MODULATION_VSB;
2490 return 0;
2491 }
73f35418 2492 if (is_valid_ioctl(vfd, VIDIOC_G_MODULATOR)) {
82b655bf
HV		 2493 struct v4l2_modulator m = {
2494 .index = p->tuner,
2495 };
2496
2497 if (type != V4L2_TUNER_RADIO)
2498 return -EINVAL;
aa4d9b53
HV		 2499 if (p->index)
2500 return -EINVAL;
82b655bf
HV		 2501 err = ops->vidioc_g_modulator(file, fh, &m);
2502 if (err)
2503 return err;
2504 p->capability = m.capability | V4L2_TUNER_CAP_FREQ_BANDS;
2505 p->rangelow = m.rangelow;
2506 p->rangehigh = m.rangehigh;
2507 p->modulation = (type == V4L2_TUNER_RADIO) ?
2508 V4L2_BAND_MODULATION_FM : V4L2_BAND_MODULATION_VSB;
2509 return 0;
2510 }
2511 return -ENOTTY;
2512}
2513
4839e6c2
HV		 2514struct v4l2_ioctl_info {
2515 unsigned int ioctl;
27cd2aba 2516 u32 flags;
4839e6c2 2517 const char * const name;
86748f35
HV		 2518 union {
2519 u32 offset;
2520 int (*func)(const struct v4l2_ioctl_ops *ops,
2521 struct file *file, void *fh, void *p);
26ddcbcc 2522 } u;
86748f35 2523 void (*debug)(const void *arg, bool write_only);
4839e6c2
HV		 2524};
2525
2526/* This control needs a priority check */
043f77ed 2527#define INFO_FL_PRIO (1 << 0)
4839e6c2 2528/* This control can be valid if the filehandle passes a control handler. */
043f77ed 2529#define INFO_FL_CTRL (1 << 1)
86748f35 2530/* This is a standard ioctl, no need for special code */
043f77ed 2531#define INFO_FL_STD (1 << 2)
86748f35 2532/* This is ioctl has its own function */
043f77ed 2533#define INFO_FL_FUNC (1 << 3)
5a5adf6b 2534/* Queuing ioctl */
043f77ed
HV		 2535#define INFO_FL_QUEUE (1 << 4)
2536/* Always copy back result, even on error */
2537#define INFO_FL_ALWAYS_COPY (1 << 5)
27cd2aba
HV		 2538/* Zero struct from after the field to the end */
2539#define INFO_FL_CLEAR(v4l2_struct, field) \
2540 ((offsetof(struct v4l2_struct, field) + \
2541 sizeof(((struct v4l2_struct *)0)->field)) << 16)
043f77ed 2542#define INFO_FL_CLEAR_MASK (_IOC_SIZEMASK << 16)
4839e6c2 2543
86748f35
HV		 2544#define IOCTL_INFO_STD(_ioctl, _vidioc, _debug, _flags) \
2545 [_IOC_NR(_ioctl)] = { \
2546 .ioctl = _ioctl, \
2547 .flags = _flags | INFO_FL_STD, \
2548 .name = #_ioctl, \
26ddcbcc 2549 .u.offset = offsetof(struct v4l2_ioctl_ops, _vidioc), \
86748f35
HV		 2550 .debug = _debug, \
2551 }
2552
2553#define IOCTL_INFO_FNC(_ioctl, _func, _debug, _flags) \
2554 [_IOC_NR(_ioctl)] = { \
2555 .ioctl = _ioctl, \
2556 .flags = _flags | INFO_FL_FUNC, \
2557 .name = #_ioctl, \
26ddcbcc 2558 .u.func = _func, \
86748f35
HV		 2559 .debug = _debug, \
2560 }
2561
4839e6c2 2562static struct v4l2_ioctl_info v4l2_ioctls[] = {
59076122 2563 IOCTL_INFO_FNC(VIDIOC_QUERYCAP, v4l_querycap, v4l_print_querycap, 0),
be6c64e4 2564 IOCTL_INFO_FNC(VIDIOC_ENUM_FMT, v4l_enum_fmt, v4l_print_fmtdesc, INFO_FL_CLEAR(v4l2_fmtdesc, type)),
e5ce558a 2565 IOCTL_INFO_FNC(VIDIOC_G_FMT, v4l_g_fmt, v4l_print_format, 0),
be6c64e4 2566 IOCTL_INFO_FNC(VIDIOC_S_FMT, v4l_s_fmt, v4l_print_format, INFO_FL_PRIO),
5a5adf6b
HV		 2567 IOCTL_INFO_FNC(VIDIOC_REQBUFS, v4l_reqbufs, v4l_print_requestbuffers, INFO_FL_PRIO | INFO_FL_QUEUE),
2568 IOCTL_INFO_FNC(VIDIOC_QUERYBUF, v4l_querybuf, v4l_print_buffer, INFO_FL_QUEUE | INFO_FL_CLEAR(v4l2_buffer, length)),
be6c64e4
HV		 2569 IOCTL_INFO_STD(VIDIOC_G_FBUF, vidioc_g_fbuf, v4l_print_framebuffer, 0),
2570 IOCTL_INFO_STD(VIDIOC_S_FBUF, vidioc_s_fbuf, v4l_print_framebuffer, INFO_FL_PRIO),
737c097b 2571 IOCTL_INFO_FNC(VIDIOC_OVERLAY, v4l_overlay, v4l_print_u32, INFO_FL_PRIO),
5a5adf6b 2572 IOCTL_INFO_FNC(VIDIOC_QBUF, v4l_qbuf, v4l_print_buffer, INFO_FL_QUEUE),
b799d09a 2573 IOCTL_INFO_STD(VIDIOC_EXPBUF, vidioc_expbuf, v4l_print_exportbuffer, INFO_FL_QUEUE | INFO_FL_CLEAR(v4l2_exportbuffer, flags)),
5a5adf6b
HV		 2574 IOCTL_INFO_FNC(VIDIOC_DQBUF, v4l_dqbuf, v4l_print_buffer, INFO_FL_QUEUE),
2575 IOCTL_INFO_FNC(VIDIOC_STREAMON, v4l_streamon, v4l_print_buftype, INFO_FL_PRIO | INFO_FL_QUEUE),
2576 IOCTL_INFO_FNC(VIDIOC_STREAMOFF, v4l_streamoff, v4l_print_buftype, INFO_FL_PRIO | INFO_FL_QUEUE),
eb3728ed
HV		 2577 IOCTL_INFO_FNC(VIDIOC_G_PARM, v4l_g_parm, v4l_print_streamparm, INFO_FL_CLEAR(v4l2_streamparm, type)),
2578 IOCTL_INFO_FNC(VIDIOC_S_PARM, v4l_s_parm, v4l_print_streamparm, INFO_FL_PRIO),
ca371575 2579 IOCTL_INFO_STD(VIDIOC_G_STD, vidioc_g_std, v4l_print_std, 0),
4b1e2e4d
HV		 2580 IOCTL_INFO_FNC(VIDIOC_S_STD, v4l_s_std, v4l_print_std, INFO_FL_PRIO),
2581 IOCTL_INFO_FNC(VIDIOC_ENUMSTD, v4l_enumstd, v4l_print_standard, INFO_FL_CLEAR(v4l2_standard, index)),
59076122 2582 IOCTL_INFO_FNC(VIDIOC_ENUMINPUT, v4l_enuminput, v4l_print_enuminput, INFO_FL_CLEAR(v4l2_input, index)),
efbceecd
HV		 2583 IOCTL_INFO_FNC(VIDIOC_G_CTRL, v4l_g_ctrl, v4l_print_control, INFO_FL_CTRL | INFO_FL_CLEAR(v4l2_control, id)),
2584 IOCTL_INFO_FNC(VIDIOC_S_CTRL, v4l_s_ctrl, v4l_print_control, INFO_FL_PRIO | INFO_FL_CTRL),
4b1e2e4d
HV		 2585 IOCTL_INFO_FNC(VIDIOC_G_TUNER, v4l_g_tuner, v4l_print_tuner, INFO_FL_CLEAR(v4l2_tuner, index)),
2586 IOCTL_INFO_FNC(VIDIOC_S_TUNER, v4l_s_tuner, v4l_print_tuner, INFO_FL_PRIO),
59076122
HV		 2587 IOCTL_INFO_STD(VIDIOC_G_AUDIO, vidioc_g_audio, v4l_print_audio, 0),
2588 IOCTL_INFO_STD(VIDIOC_S_AUDIO, vidioc_s_audio, v4l_print_audio, INFO_FL_PRIO),
efbceecd
HV		 2589 IOCTL_INFO_FNC(VIDIOC_QUERYCTRL, v4l_queryctrl, v4l_print_queryctrl, INFO_FL_CTRL | INFO_FL_CLEAR(v4l2_queryctrl, id)),
2590 IOCTL_INFO_FNC(VIDIOC_QUERYMENU, v4l_querymenu, v4l_print_querymenu, INFO_FL_CTRL | INFO_FL_CLEAR(v4l2_querymenu, index)),
59076122
HV		 2591 IOCTL_INFO_STD(VIDIOC_G_INPUT, vidioc_g_input, v4l_print_u32, 0),
2592 IOCTL_INFO_FNC(VIDIOC_S_INPUT, v4l_s_input, v4l_print_u32, INFO_FL_PRIO),
043f77ed
HV		 2593 IOCTL_INFO_STD(VIDIOC_G_EDID, vidioc_g_edid, v4l_print_edid, INFO_FL_ALWAYS_COPY),
2594 IOCTL_INFO_STD(VIDIOC_S_EDID, vidioc_s_edid, v4l_print_edid, INFO_FL_PRIO | INFO_FL_ALWAYS_COPY),
59076122
HV		 2595 IOCTL_INFO_STD(VIDIOC_G_OUTPUT, vidioc_g_output, v4l_print_u32, 0),
2596 IOCTL_INFO_FNC(VIDIOC_S_OUTPUT, v4l_s_output, v4l_print_u32, INFO_FL_PRIO),
2597 IOCTL_INFO_FNC(VIDIOC_ENUMOUTPUT, v4l_enumoutput, v4l_print_enumoutput, INFO_FL_CLEAR(v4l2_output, index)),
2598 IOCTL_INFO_STD(VIDIOC_G_AUDOUT, vidioc_g_audout, v4l_print_audioout, 0),
2599 IOCTL_INFO_STD(VIDIOC_S_AUDOUT, vidioc_s_audout, v4l_print_audioout, INFO_FL_PRIO),
82b655bf 2600 IOCTL_INFO_FNC(VIDIOC_G_MODULATOR, v4l_g_modulator, v4l_print_modulator, INFO_FL_CLEAR(v4l2_modulator, index)),
4124a3c4 2601 IOCTL_INFO_FNC(VIDIOC_S_MODULATOR, v4l_s_modulator, v4l_print_modulator, INFO_FL_PRIO),
4b1e2e4d
HV		 2602 IOCTL_INFO_FNC(VIDIOC_G_FREQUENCY, v4l_g_frequency, v4l_print_frequency, INFO_FL_CLEAR(v4l2_frequency, tuner)),
2603 IOCTL_INFO_FNC(VIDIOC_S_FREQUENCY, v4l_s_frequency, v4l_print_frequency, INFO_FL_PRIO),
d84f2d94
HV		 2604 IOCTL_INFO_FNC(VIDIOC_CROPCAP, v4l_cropcap, v4l_print_cropcap, INFO_FL_CLEAR(v4l2_cropcap, type)),
2605 IOCTL_INFO_FNC(VIDIOC_G_CROP, v4l_g_crop, v4l_print_crop, INFO_FL_CLEAR(v4l2_crop, type)),
2606 IOCTL_INFO_FNC(VIDIOC_S_CROP, v4l_s_crop, v4l_print_crop, INFO_FL_PRIO),
eaec420f
HV		 2607 IOCTL_INFO_FNC(VIDIOC_G_SELECTION, v4l_g_selection, v4l_print_selection, INFO_FL_CLEAR(v4l2_selection, r)),
2608 IOCTL_INFO_FNC(VIDIOC_S_SELECTION, v4l_s_selection, v4l_print_selection, INFO_FL_PRIO | INFO_FL_CLEAR(v4l2_selection, r)),
d806f2df
HV		 2609 IOCTL_INFO_STD(VIDIOC_G_JPEGCOMP, vidioc_g_jpegcomp, v4l_print_jpegcompression, 0),
2610 IOCTL_INFO_STD(VIDIOC_S_JPEGCOMP, vidioc_s_jpegcomp, v4l_print_jpegcompression, INFO_FL_PRIO),
4b1e2e4d 2611 IOCTL_INFO_FNC(VIDIOC_QUERYSTD, v4l_querystd, v4l_print_std, 0),
be6c64e4 2612 IOCTL_INFO_FNC(VIDIOC_TRY_FMT, v4l_try_fmt, v4l_print_format, 0),
59076122
HV		 2613 IOCTL_INFO_STD(VIDIOC_ENUMAUDIO, vidioc_enumaudio, v4l_print_audio, INFO_FL_CLEAR(v4l2_audio, index)),
2614 IOCTL_INFO_STD(VIDIOC_ENUMAUDOUT, vidioc_enumaudout, v4l_print_audioout, INFO_FL_CLEAR(v4l2_audioout, index)),
d0547cba
HV		 2615 IOCTL_INFO_FNC(VIDIOC_G_PRIORITY, v4l_g_priority, v4l_print_u32, 0),
2616 IOCTL_INFO_FNC(VIDIOC_S_PRIORITY, v4l_s_priority, v4l_print_u32, INFO_FL_PRIO),
458aa4a6 2617 IOCTL_INFO_FNC(VIDIOC_G_SLICED_VBI_CAP, v4l_g_sliced_vbi_cap, v4l_print_sliced_vbi_cap, INFO_FL_CLEAR(v4l2_sliced_vbi_cap, type)),
f16f77b0 2618 IOCTL_INFO_FNC(VIDIOC_LOG_STATUS, v4l_log_status, v4l_print_newline, 0),
efbceecd
HV		 2619 IOCTL_INFO_FNC(VIDIOC_G_EXT_CTRLS, v4l_g_ext_ctrls, v4l_print_ext_controls, INFO_FL_CTRL),
2620 IOCTL_INFO_FNC(VIDIOC_S_EXT_CTRLS, v4l_s_ext_ctrls, v4l_print_ext_controls, INFO_FL_PRIO | INFO_FL_CTRL),
9bc31633 2621 IOCTL_INFO_FNC(VIDIOC_TRY_EXT_CTRLS, v4l_try_ext_ctrls, v4l_print_ext_controls, INFO_FL_CTRL),
458aa4a6
HV		 2622 IOCTL_INFO_STD(VIDIOC_ENUM_FRAMESIZES, vidioc_enum_framesizes, v4l_print_frmsizeenum, INFO_FL_CLEAR(v4l2_frmsizeenum, pixel_format)),
2623 IOCTL_INFO_STD(VIDIOC_ENUM_FRAMEINTERVALS, vidioc_enum_frameintervals, v4l_print_frmivalenum, INFO_FL_CLEAR(v4l2_frmivalenum, height)),
d806f2df
HV		 2624 IOCTL_INFO_STD(VIDIOC_G_ENC_INDEX, vidioc_g_enc_index, v4l_print_enc_idx, 0),
2625 IOCTL_INFO_STD(VIDIOC_ENCODER_CMD, vidioc_encoder_cmd, v4l_print_encoder_cmd, INFO_FL_PRIO | INFO_FL_CLEAR(v4l2_encoder_cmd, flags)),
2626 IOCTL_INFO_STD(VIDIOC_TRY_ENCODER_CMD, vidioc_try_encoder_cmd, v4l_print_encoder_cmd, INFO_FL_CLEAR(v4l2_encoder_cmd, flags)),
2627 IOCTL_INFO_STD(VIDIOC_DECODER_CMD, vidioc_decoder_cmd, v4l_print_decoder_cmd, INFO_FL_PRIO),
2628 IOCTL_INFO_STD(VIDIOC_TRY_DECODER_CMD, vidioc_try_decoder_cmd, v4l_print_decoder_cmd, 0),
f16f77b0
HV		 2629 IOCTL_INFO_FNC(VIDIOC_DBG_S_REGISTER, v4l_dbg_s_register, v4l_print_dbg_register, 0),
2630 IOCTL_INFO_FNC(VIDIOC_DBG_G_REGISTER, v4l_dbg_g_register, v4l_print_dbg_register, 0),
4b1e2e4d 2631 IOCTL_INFO_FNC(VIDIOC_S_HW_FREQ_SEEK, v4l_s_hw_freq_seek, v4l_print_hw_freq_seek, INFO_FL_PRIO),
f932af80 2632 IOCTL_INFO_STD(VIDIOC_S_DV_TIMINGS, vidioc_s_dv_timings, v4l_print_dv_timings, INFO_FL_PRIO | INFO_FL_CLEAR(v4l2_dv_timings, bt.flags)),
efc626b0 2633 IOCTL_INFO_STD(VIDIOC_G_DV_TIMINGS, vidioc_g_dv_timings, v4l_print_dv_timings, 0),
458aa4a6
HV		 2634 IOCTL_INFO_FNC(VIDIOC_DQEVENT, v4l_dqevent, v4l_print_event, 0),
2635 IOCTL_INFO_FNC(VIDIOC_SUBSCRIBE_EVENT, v4l_subscribe_event, v4l_print_event_subscription, 0),
2636 IOCTL_INFO_FNC(VIDIOC_UNSUBSCRIBE_EVENT, v4l_unsubscribe_event, v4l_print_event_subscription, 0),
5a5adf6b
HV		 2637 IOCTL_INFO_FNC(VIDIOC_CREATE_BUFS, v4l_create_bufs, v4l_print_create_buffers, INFO_FL_PRIO | INFO_FL_QUEUE),
2638 IOCTL_INFO_FNC(VIDIOC_PREPARE_BUF, v4l_prepare_buf, v4l_print_buffer, INFO_FL_QUEUE),
f932af80 2639 IOCTL_INFO_STD(VIDIOC_ENUM_DV_TIMINGS, vidioc_enum_dv_timings, v4l_print_enum_dv_timings, INFO_FL_CLEAR(v4l2_enum_dv_timings, pad)),
043f77ed 2640 IOCTL_INFO_STD(VIDIOC_QUERY_DV_TIMINGS, vidioc_query_dv_timings, v4l_print_dv_timings, INFO_FL_ALWAYS_COPY),
a1acb8f9 2641 IOCTL_INFO_STD(VIDIOC_DV_TIMINGS_CAP, vidioc_dv_timings_cap, v4l_print_dv_timings_cap, INFO_FL_CLEAR(v4l2_dv_timings_cap, type)),
82b655bf 2642 IOCTL_INFO_FNC(VIDIOC_ENUM_FREQ_BANDS, v4l_enum_freq_bands, v4l_print_freq_band, 0),
96b03d2a 2643 IOCTL_INFO_FNC(VIDIOC_DBG_G_CHIP_INFO, v4l_dbg_g_chip_info, v4l_print_dbg_chip_info, INFO_FL_CLEAR(v4l2_dbg_chip_info, match)),
e6bee368 2644 IOCTL_INFO_FNC(VIDIOC_QUERY_EXT_CTRL, v4l_query_ext_ctrl, v4l_print_query_ext_ctrl, INFO_FL_CTRL | INFO_FL_CLEAR(v4l2_query_ext_ctrl, id)),
4839e6c2
HV		 2645};
2646#define V4L2_IOCTLS ARRAY_SIZE(v4l2_ioctls)
2647
2648bool v4l2_is_known_ioctl(unsigned int cmd)
2649{
2650 if (_IOC_NR(cmd) >= V4L2_IOCTLS)
2651 return false;
2652 return v4l2_ioctls[_IOC_NR(cmd)].ioctl == cmd;
2653}
2654
5a5adf6b
HV		 2655struct mutex *v4l2_ioctl_get_lock(struct video_device *vdev, unsigned cmd)
2656{
2657 if (_IOC_NR(cmd) >= V4L2_IOCTLS)
2658 return vdev->lock;
2659 if (test_bit(_IOC_NR(cmd), vdev->disable_locking))
2660 return NULL;
2661 if (vdev->queue && vdev->queue->lock &&
2662 (v4l2_ioctls[_IOC_NR(cmd)].flags & INFO_FL_QUEUE))
2663 return vdev->queue->lock;
2664 return vdev->lock;
2665}
2666
4839e6c2
HV		 2667/* Common ioctl debug function. This function can be used by
2668 external ioctl messages as well as internal V4L ioctl */
4a085168 2669void v4l_printk_ioctl(const char *prefix, unsigned int cmd)
4839e6c2 2670{
86748f35 2671 const char *dir, *type;
4839e6c2 2672
4a085168
HV		 2673 if (prefix)
2674 printk(KERN_DEBUG "%s: ", prefix);
2675
4839e6c2
HV		 2676 switch (_IOC_TYPE(cmd)) {
2677 case 'd':
2678 type = "v4l2_int";
2679 break;
2680 case 'V':
2681 if (_IOC_NR(cmd) >= V4L2_IOCTLS) {
2682 type = "v4l2";
2683 break;
2684 }
86748f35 2685 pr_cont("%s", v4l2_ioctls[_IOC_NR(cmd)].name);
4839e6c2
HV		 2686 return;
2687 default:
2688 type = "unknown";
86748f35 2689 break;
4839e6c2
HV		 2690 }
2691
2692 switch (_IOC_DIR(cmd)) {
2693 case _IOC_NONE: dir = "--"; break;
2694 case _IOC_READ: dir = "r-"; break;
2695 case _IOC_WRITE: dir = "-w"; break;
2696 case _IOC_READ | _IOC_WRITE: dir = "rw"; break;
2697 default: dir = "*ERR*"; break;
2698 }
86748f35 2699 pr_cont("%s ioctl '%c', dir=%s, #%d (0x%08x)",
4839e6c2
HV		 2700 type, _IOC_TYPE(cmd), dir, _IOC_NR(cmd), cmd);
2701}
2702EXPORT_SYMBOL(v4l_printk_ioctl);
2703
069b7479 2704static long __video_do_ioctl(struct file *file,
35ea11ff
HV		 2705 unsigned int cmd, void *arg)
2706{
2707 struct video_device *vfd = video_devdata(file);
a399810c 2708 const struct v4l2_ioctl_ops *ops = vfd->ioctl_ops;
86748f35
HV		 2709 bool write_only = false;
2710 struct v4l2_ioctl_info default_info;
2711 const struct v4l2_ioctl_info *info;
d5fbf32f 2712 void *fh = file->private_data;
99cd47bc 2713 struct v4l2_fh *vfh = NULL;
17028cdb 2714 int dev_debug = vfd->dev_debug;
9190d191 2715 long ret = -ENOTTY;
35ea11ff 2716
6a717883 2717 if (ops == NULL) {
4a085168
HV		 2718 pr_warn("%s: has no ioctl_ops.\n",
2719 video_device_node_name(vfd));
9190d191 2720 return ret;
6a717883
HV		 2721 }
2722
b7284bb0 2723 if (test_bit(V4L2_FL_USES_V4L2_FH, &vfd->flags))
99cd47bc
HV		 2724 vfh = file->private_data;
2725
48ea0be0 2726 if (v4l2_is_known_ioctl(cmd)) {
86748f35 2727 info = &v4l2_ioctls[_IOC_NR(cmd)];
48ea0be0 2728
2e5e435f 2729 if (!test_bit(_IOC_NR(cmd), vfd->valid_ioctls) &&
48ea0be0 2730 !((info->flags & INFO_FL_CTRL) && vfh && vfh->ctrl_handler))
86748f35 2731 goto done;
4b902fec 2732
b7284bb0 2733 if (vfh && (info->flags & INFO_FL_PRIO)) {
4b902fec
HV		 2734 ret = v4l2_prio_check(vfd->prio, vfh->prio);
2735 if (ret)
86748f35 2736 goto done;
4b902fec 2737 }
86748f35
HV		 2738 } else {
2739 default_info.ioctl = cmd;
2740 default_info.flags = 0;
f18d8e07 2741 default_info.debug = v4l_print_default;
86748f35 2742 info = &default_info;
48ea0be0
HV		 2743 }
2744
86748f35 2745 write_only = _IOC_DIR(cmd) == _IOC_WRITE;
86748f35
HV		 2746 if (info->flags & INFO_FL_STD) {
2747 typedef int (*vidioc_op)(struct file *file, void *fh, void *p);
2748 const void *p = vfd->ioctl_ops;
26ddcbcc 2749 const vidioc_op *vidioc = p + info->u.offset;
86748f35
HV		 2750
2751 ret = (*vidioc)(file, fh, arg);
86748f35 2752 } else if (info->flags & INFO_FL_FUNC) {
26ddcbcc 2753 ret = info->u.func(ops, file, fh, arg);
f18d8e07
HV		 2754 } else if (!ops->vidioc_default) {
2755 ret = -ENOTTY;
2756 } else {
2757 ret = ops->vidioc_default(file, fh,
b7284bb0 2758 vfh ? v4l2_prio_check(vfd->prio, vfh->prio) >= 0 : 0,
f18d8e07 2759 cmd, arg);
48ea0be0 2760 }
99cd47bc 2761
86748f35 2762done:
17028cdb
HV		 2763 if (dev_debug & (V4L2_DEV_DEBUG_IOCTL | V4L2_DEV_DEBUG_IOCTL_ARG)) {
2764 if (!(dev_debug & V4L2_DEV_DEBUG_STREAMING) &&
2765 (cmd == VIDIOC_QBUF || cmd == VIDIOC_DQBUF))
2766 return ret;
2767
4a085168 2768 v4l_printk_ioctl(video_device_node_name(vfd), cmd);
86748f35 2769 if (ret < 0)
505d04bd 2770 pr_cont(": error %ld", ret);
17028cdb 2771 if (!(dev_debug & V4L2_DEV_DEBUG_IOCTL_ARG))
86748f35 2772 pr_cont("\n");
86748f35
HV		 2773 else if (_IOC_DIR(cmd) == _IOC_NONE)
2774 info->debug(arg, write_only);
2775 else {
2776 pr_cont(": ");
2777 info->debug(arg, write_only);
35ea11ff
HV		 2778 }
2779 }
2780
2781 return ret;
2782}
2783
d14e6d76 2784static int check_array_args(unsigned int cmd, void *parg, size_t *array_size,
ba2d35c1 2785 void __user **user_ptr, void ***kernel_ptr)
d14e6d76
PO		 2786{
2787 int ret = 0;
2788
2789 switch (cmd) {
96b1a702 2790 case VIDIOC_PREPARE_BUF:
d14e6d76
PO		 2791 case VIDIOC_QUERYBUF:
2792 case VIDIOC_QBUF:
2793 case VIDIOC_DQBUF: {
2794 struct v4l2_buffer *buf = parg;
2795
2796 if (V4L2_TYPE_IS_MULTIPLANAR(buf->type) && buf->length > 0) {
2797 if (buf->length > VIDEO_MAX_PLANES) {
2798 ret = -EINVAL;
2799 break;
2800 }
2801 *user_ptr = (void __user *)buf->m.planes;
ba2d35c1 2802 *kernel_ptr = (void **)&buf->m.planes;
d14e6d76
PO		 2803 *array_size = sizeof(struct v4l2_plane) * buf->length;
2804 ret = 1;
2805 }
2806 break;
2807 }
2808
dd519bb3
HV		 2809 case VIDIOC_G_EDID:
2810 case VIDIOC_S_EDID: {
2811 struct v4l2_edid *edid = parg;
ed45ce2c
HV		 2812
2813 if (edid->blocks) {
1b8b10cc
HV		 2814 if (edid->blocks > 256) {
2815 ret = -EINVAL;
2816 break;
2817 }
ed45ce2c 2818 *user_ptr = (void __user *)edid->edid;
ba2d35c1 2819 *kernel_ptr = (void **)&edid->edid;
ed45ce2c
HV		 2820 *array_size = edid->blocks * 128;
2821 ret = 1;
2822 }
2823 break;
2824 }
2825
d14e6d76
PO		 2826 case VIDIOC_S_EXT_CTRLS:
2827 case VIDIOC_G_EXT_CTRLS:
2828 case VIDIOC_TRY_EXT_CTRLS: {
2829 struct v4l2_ext_controls *ctrls = parg;
2830
2831 if (ctrls->count != 0) {
6c06108b
DC		 2832 if (ctrls->count > V4L2_CID_MAX_CTRLS) {
2833 ret = -EINVAL;
2834 break;
2835 }
d14e6d76 2836 *user_ptr = (void __user *)ctrls->controls;
ba2d35c1 2837 *kernel_ptr = (void **)&ctrls->controls;
d14e6d76
PO		 2838 *array_size = sizeof(struct v4l2_ext_control)
2839 * ctrls->count;
2840 ret = 1;
2841 }
2842 break;
2843 }
2844 }
2845
2846 return ret;
2847}
2848
fc0a8079
LP		 2849long
2850video_usercopy(struct file *file, unsigned int cmd, unsigned long arg,
2851 v4l2_kioctl func)
35ea11ff
HV		 2852{
2853 char sbuf[128];
2854 void *mbuf = NULL;
1d94aa36 2855 void *parg = (void *)arg;
069b7479 2856 long err = -EINVAL;
d14e6d76 2857 bool has_array_args;
043f77ed 2858 bool always_copy = false;
d14e6d76 2859 size_t array_size = 0;
35ea11ff 2860 void __user *user_ptr = NULL;
d14e6d76 2861 void **kernel_ptr = NULL;
35ea11ff 2862
35ea11ff 2863 /* Copy arguments into temp kernel buffer */
337f9d20 2864 if (_IOC_DIR(cmd) != _IOC_NONE) {
35ea11ff
HV		 2865 if (_IOC_SIZE(cmd) <= sizeof(sbuf)) {
2866 parg = sbuf;
2867 } else {
2868 /* too big to allocate from stack */
758d90e1 2869 mbuf = kvmalloc(_IOC_SIZE(cmd), GFP_KERNEL);
35ea11ff
HV		 2870 if (NULL == mbuf)
2871 return -ENOMEM;
2872 parg = mbuf;
2873 }
2874
2875 err = -EFAULT;
19c96e4b 2876 if (_IOC_DIR(cmd) & _IOC_WRITE) {
27cd2aba
HV		 2877 unsigned int n = _IOC_SIZE(cmd);
2878
2879 /*
2880 * In some cases, only a few fields are used as input,
2881 * i.e. when the app sets "index" and then the driver
2882 * fills in the rest of the structure for the thing
2883 * with that index. We only need to copy up the first
2884 * non-input field.
2885 */
2886 if (v4l2_is_known_ioctl(cmd)) {
2887 u32 flags = v4l2_ioctls[_IOC_NR(cmd)].flags;
043f77ed 2888
27cd2aba
HV		 2889 if (flags & INFO_FL_CLEAR_MASK)
2890 n = (flags & INFO_FL_CLEAR_MASK) >> 16;
043f77ed 2891 always_copy = flags & INFO_FL_ALWAYS_COPY;
27cd2aba 2892 }
19c96e4b
TP		 2893
2894 if (copy_from_user(parg, (void __user *)arg, n))
35ea11ff 2895 goto out;
19c96e4b
TP		 2896
2897 /* zero out anything we don't copy from userspace */
2898 if (n < _IOC_SIZE(cmd))
2899 memset((u8 *)parg + n, 0, _IOC_SIZE(cmd) - n);
337f9d20
TP		 2900 } else {
2901 /* read-only ioctl */
2902 memset(parg, 0, _IOC_SIZE(cmd));
19c96e4b 2903 }
35ea11ff
HV		 2904 }
2905
d14e6d76
PO		 2906 err = check_array_args(cmd, parg, &array_size, &user_ptr, &kernel_ptr);
2907 if (err < 0)
2908 goto out;
2909 has_array_args = err;
35ea11ff 2910
d14e6d76
PO		 2911 if (has_array_args) {
2912 /*
2913 * When adding new types of array args, make sure that the
2914 * parent argument to ioctl (which contains the pointer to the
2915 * array) fits into sbuf (so that mbuf will still remain
2916 * unused up to here).
2917 */
758d90e1 2918 mbuf = kvmalloc(array_size, GFP_KERNEL);
d14e6d76
PO		 2919 err = -ENOMEM;
2920 if (NULL == mbuf)
2921 goto out_array_args;
2922 err = -EFAULT;
2923 if (copy_from_user(mbuf, user_ptr, array_size))
2924 goto out_array_args;
2925 *kernel_ptr = mbuf;
35ea11ff
HV		 2926 }
2927
2928 /* Handles IOCTL */
fc0a8079 2929 err = func(file, cmd, parg);
35ea11ff 2930 if (err == -ENOIOCTLCMD)
02bbb814 2931 err = -ENOTTY;
aa32f4c0
HV		 2932 if (err == 0) {
2933 if (cmd == VIDIOC_DQBUF)
2934 trace_v4l2_dqbuf(video_devdata(file)->minor, parg);
2935 else if (cmd == VIDIOC_QBUF)
2936 trace_v4l2_qbuf(video_devdata(file)->minor, parg);
2937 }
35ea11ff 2938
d14e6d76 2939 if (has_array_args) {
ba2d35c1 2940 *kernel_ptr = (void __force *)user_ptr;
d14e6d76 2941 if (copy_to_user(user_ptr, mbuf, array_size))
35ea11ff 2942 err = -EFAULT;
d14e6d76 2943 goto out_array_args;
35ea11ff 2944 }
043f77ed
HV		 2945 /*
2946 * Some ioctls can return an error, but still have valid
2947 * results that must be returned.
2948 */
2949 if (err < 0 && !always_copy)
35ea11ff
HV		 2950 goto out;
2951
d14e6d76 2952out_array_args:
35ea11ff
HV		 2953 /* Copy results into user buffer */
2954 switch (_IOC_DIR(cmd)) {
2955 case _IOC_READ:
2956 case (_IOC_WRITE | _IOC_READ):
2957 if (copy_to_user((void __user *)arg, parg, _IOC_SIZE(cmd)))
2958 err = -EFAULT;
2959 break;
2960 }
2961
2962out:
758d90e1 2963 kvfree(mbuf);
35ea11ff
HV		 2964 return err;
2965}
fc0a8079
LP		 2966EXPORT_SYMBOL(video_usercopy);
2967
2968long video_ioctl2(struct file *file,
2969 unsigned int cmd, unsigned long arg)
2970{
2971 return video_usercopy(file, cmd, arg, __video_do_ioctl);
2972}
8a522c91 2973EXPORT_SYMBOL(video_ioctl2);
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