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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",
458aa4a6
HV		 733 p->stepwise.min_width, p->stepwise.min_height,
734 p->stepwise.step_width, p->stepwise.step_height,
735 p->stepwise.max_width, p->stepwise.max_height);
736 break;
737 case V4L2_FRMSIZE_TYPE_CONTINUOUS:
738 /* fall through */
739 default:
740 pr_cont("\n");
741 break;
742 }
743}
744
745static void v4l_print_frmivalenum(const void *arg, bool write_only)
746{
747 const struct v4l2_frmivalenum *p = arg;
748
749 pr_cont("index=%u, pixelformat=%c%c%c%c, wxh=%ux%u, type=%u",
750 p->index,
751 (p->pixel_format & 0xff),
752 (p->pixel_format >> 8) & 0xff,
753 (p->pixel_format >> 16) & 0xff,
754 (p->pixel_format >> 24) & 0xff,
755 p->width, p->height, p->type);
756 switch (p->type) {
757 case V4L2_FRMIVAL_TYPE_DISCRETE:
560dde24 758 pr_cont(", fps=%d/%d\n",
458aa4a6
HV		 759 p->discrete.numerator,
760 p->discrete.denominator);
761 break;
762 case V4L2_FRMIVAL_TYPE_STEPWISE:
560dde24 763 pr_cont(", min=%d/%d, max=%d/%d, step=%d/%d\n",
458aa4a6
HV		 764 p->stepwise.min.numerator,
765 p->stepwise.min.denominator,
766 p->stepwise.max.numerator,
767 p->stepwise.max.denominator,
768 p->stepwise.step.numerator,
769 p->stepwise.step.denominator);
770 break;
771 case V4L2_FRMIVAL_TYPE_CONTINUOUS:
772 /* fall through */
773 default:
774 pr_cont("\n");
775 break;
776 }
777}
778
779static void v4l_print_event(const void *arg, bool write_only)
780{
781 const struct v4l2_event *p = arg;
782 const struct v4l2_event_ctrl *c;
783
8720427c 784 pr_cont("type=0x%x, pending=%u, sequence=%u, id=%u, timestamp=%lu.%9.9lu\n",
458aa4a6
HV		 785 p->type, p->pending, p->sequence, p->id,
786 p->timestamp.tv_sec, p->timestamp.tv_nsec);
787 switch (p->type) {
788 case V4L2_EVENT_VSYNC:
789 printk(KERN_DEBUG "field=%s\n",
790 prt_names(p->u.vsync.field, v4l2_field_names));
791 break;
792 case V4L2_EVENT_CTRL:
793 c = &p->u.ctrl;
794 printk(KERN_DEBUG "changes=0x%x, type=%u, ",
795 c->changes, c->type);
796 if (c->type == V4L2_CTRL_TYPE_INTEGER64)
797 pr_cont("value64=%lld, ", c->value64);
798 else
799 pr_cont("value=%d, ", c->value);
8720427c 800 pr_cont("flags=0x%x, minimum=%d, maximum=%d, step=%d, default_value=%d\n",
458aa4a6
HV		 801 c->flags, c->minimum, c->maximum,
802 c->step, c->default_value);
803 break;
804 case V4L2_EVENT_FRAME_SYNC:
805 pr_cont("frame_sequence=%u\n",
806 p->u.frame_sync.frame_sequence);
807 break;
808 }
809}
810
811static void v4l_print_event_subscription(const void *arg, bool write_only)
812{
813 const struct v4l2_event_subscription *p = arg;
814
815 pr_cont("type=0x%x, id=0x%x, flags=0x%x\n",
816 p->type, p->id, p->flags);
817}
818
819static void v4l_print_sliced_vbi_cap(const void *arg, bool write_only)
820{
821 const struct v4l2_sliced_vbi_cap *p = arg;
822 int i;
823
824 pr_cont("type=%s, service_set=0x%08x\n",
825 prt_names(p->type, v4l2_type_names), p->service_set);
826 for (i = 0; i < 24; i++)
827 printk(KERN_DEBUG "line[%02u]=0x%04x, 0x%04x\n", i,
828 p->service_lines[0][i],
829 p->service_lines[1][i]);
830}
831
82b655bf
HV		 832static void v4l_print_freq_band(const void *arg, bool write_only)
833{
834 const struct v4l2_frequency_band *p = arg;
835
8720427c 836 pr_cont("tuner=%u, type=%u, index=%u, capability=0x%x, rangelow=%u, rangehigh=%u, modulation=0x%x\n",
82b655bf
HV		 837 p->tuner, p->type, p->index,
838 p->capability, p->rangelow,
839 p->rangehigh, p->modulation);
840}
841
dd519bb3
HV		 842static void v4l_print_edid(const void *arg, bool write_only)
843{
844 const struct v4l2_edid *p = arg;
845
846 pr_cont("pad=%u, start_block=%u, blocks=%u\n",
847 p->pad, p->start_block, p->blocks);
848}
849
efc626b0
HV		 850static void v4l_print_u32(const void *arg, bool write_only)
851{
852 pr_cont("value=%u\n", *(const u32 *)arg);
853}
854
855static void v4l_print_newline(const void *arg, bool write_only)
856{
857 pr_cont("\n");
858}
859
f18d8e07
HV		 860static void v4l_print_default(const void *arg, bool write_only)
861{
862 pr_cont("driver-specific ioctl\n");
863}
864
efbceecd 865static int check_ext_ctrls(struct v4l2_ext_controls *c, int allow_priv)
35ea11ff
HV		 866{
867 __u32 i;
868
869 /* zero the reserved fields */
870 c->reserved[0] = c->reserved[1] = 0;
6b5a9492 871 for (i = 0; i < c->count; i++)
35ea11ff 872 c->controls[i].reserved2[0] = 0;
6b5a9492 873
35ea11ff
HV		 874 /* V4L2_CID_PRIVATE_BASE cannot be used as control class
875 when using extended controls.
876 Only when passed in through VIDIOC_G_CTRL and VIDIOC_S_CTRL
877 is it allowed for backwards compatibility.
878 */
0f8017be 879 if (!allow_priv && c->which == V4L2_CID_PRIVATE_BASE)
35ea11ff 880 return 0;
0f8017be 881 if (!c->which)
9b239b22 882 return 1;
35ea11ff
HV		 883 /* Check that all controls are from the same control class. */
884 for (i = 0; i < c->count; i++) {
0f8017be 885 if (V4L2_CTRL_ID2WHICH(c->controls[i].id) != c->which) {
35ea11ff
HV		 886 c->error_idx = i;
887 return 0;
888 }
889 }
890 return 1;
891}
892
4b20259f 893static int check_fmt(struct file *file, enum v4l2_buf_type type)
35ea11ff 894{
4b20259f
HV		 895 struct video_device *vfd = video_devdata(file);
896 const struct v4l2_ioctl_ops *ops = vfd->ioctl_ops;
897 bool is_vid = vfd->vfl_type == VFL_TYPE_GRABBER;
898 bool is_vbi = vfd->vfl_type == VFL_TYPE_VBI;
582c52cb 899 bool is_sdr = vfd->vfl_type == VFL_TYPE_SDR;
b2fe22d0 900 bool is_tch = vfd->vfl_type == VFL_TYPE_TOUCH;
4b20259f
HV		 901 bool is_rx = vfd->vfl_dir != VFL_DIR_TX;
902 bool is_tx = vfd->vfl_dir != VFL_DIR_RX;
903
a399810c
HV		 904 if (ops == NULL)
905 return -EINVAL;
906
35ea11ff
HV		 907 switch (type) {
908 case V4L2_BUF_TYPE_VIDEO_CAPTURE:
b2fe22d0 909 if ((is_vid || is_tch) && is_rx &&
4b20259f 910 (ops->vidioc_g_fmt_vid_cap || ops->vidioc_g_fmt_vid_cap_mplane))
d14e6d76
PO		 911 return 0;
912 break;
913 case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE:
4b20259f 914 if (is_vid && is_rx && ops->vidioc_g_fmt_vid_cap_mplane)
35ea11ff
HV		 915 return 0;
916 break;
917 case V4L2_BUF_TYPE_VIDEO_OVERLAY:
4b20259f 918 if (is_vid && is_rx && ops->vidioc_g_fmt_vid_overlay)
35ea11ff
HV		 919 return 0;
920 break;
921 case V4L2_BUF_TYPE_VIDEO_OUTPUT:
4b20259f
HV		 922 if (is_vid && is_tx &&
923 (ops->vidioc_g_fmt_vid_out || ops->vidioc_g_fmt_vid_out_mplane))
d14e6d76
PO		 924 return 0;
925 break;
926 case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE:
4b20259f 927 if (is_vid && is_tx && ops->vidioc_g_fmt_vid_out_mplane)
35ea11ff
HV		 928 return 0;
929 break;
930 case V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY:
4b20259f 931 if (is_vid && is_tx && ops->vidioc_g_fmt_vid_out_overlay)
35ea11ff
HV		 932 return 0;
933 break;
934 case V4L2_BUF_TYPE_VBI_CAPTURE:
4b20259f 935 if (is_vbi && is_rx && ops->vidioc_g_fmt_vbi_cap)
35ea11ff
HV		 936 return 0;
937 break;
938 case V4L2_BUF_TYPE_VBI_OUTPUT:
4b20259f 939 if (is_vbi && is_tx && ops->vidioc_g_fmt_vbi_out)
35ea11ff
HV		 940 return 0;
941 break;
942 case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE:
4b20259f 943 if (is_vbi && is_rx && ops->vidioc_g_fmt_sliced_vbi_cap)
35ea11ff
HV		 944 return 0;
945 break;
946 case V4L2_BUF_TYPE_SLICED_VBI_OUTPUT:
4b20259f 947 if (is_vbi && is_tx && ops->vidioc_g_fmt_sliced_vbi_out)
35ea11ff
HV		 948 return 0;
949 break;
582c52cb
AP		 950 case V4L2_BUF_TYPE_SDR_CAPTURE:
951 if (is_sdr && is_rx && ops->vidioc_g_fmt_sdr_cap)
952 return 0;
953 break;
9effc72f
AP		 954 case V4L2_BUF_TYPE_SDR_OUTPUT:
955 if (is_sdr && is_tx && ops->vidioc_g_fmt_sdr_out)
956 return 0;
957 break;
fb9ffa6a
LP		 958 case V4L2_BUF_TYPE_META_CAPTURE:
959 if (is_vid && is_rx && ops->vidioc_g_fmt_meta_cap)
960 return 0;
961 break;
633c98e5 962 default:
35ea11ff
HV		 963 break;
964 }
965 return -EINVAL;
966}
967
d52e2381
LP		 968static void v4l_sanitize_format(struct v4l2_format *fmt)
969{
970 unsigned int offset;
971
972 /*
973 * The v4l2_pix_format structure has been extended with fields that were
974 * not previously required to be set to zero by applications. The priv
975 * field, when set to a magic value, indicates the the extended fields
976 * are valid. Otherwise they will contain undefined values. To simplify
977 * the API towards drivers zero the extended fields and set the priv
978 * field to the magic value when the extended pixel format structure
979 * isn't used by applications.
980 */
981
982 if (fmt->type != V4L2_BUF_TYPE_VIDEO_CAPTURE &&
983 fmt->type != V4L2_BUF_TYPE_VIDEO_OUTPUT)
984 return;
985
986 if (fmt->fmt.pix.priv == V4L2_PIX_FMT_PRIV_MAGIC)
987 return;
988
989 fmt->fmt.pix.priv = V4L2_PIX_FMT_PRIV_MAGIC;
990
991 offset = offsetof(struct v4l2_pix_format, priv)
992 + sizeof(fmt->fmt.pix.priv);
993 memset(((void *)&fmt->fmt.pix) + offset, 0,
994 sizeof(fmt->fmt.pix) - offset);
995}
996
59076122
HV		 997static int v4l_querycap(const struct v4l2_ioctl_ops *ops,
998 struct file *file, void *fh, void *arg)
999{
1000 struct v4l2_capability *cap = (struct v4l2_capability *)arg;
7bbe7813 1001 struct video_device *vfd = video_devdata(file);
d52e2381 1002 int ret;
59076122
HV		 1003
1004 cap->version = LINUX_VERSION_CODE;
7bbe7813
HV		 1005 cap->device_caps = vfd->device_caps;
1006 cap->capabilities = vfd->device_caps | V4L2_CAP_DEVICE_CAPS;
d52e2381
LP		 1007
1008 ret = ops->vidioc_querycap(file, fh, cap);
1009
1010 cap->capabilities |= V4L2_CAP_EXT_PIX_FORMAT;
454a4e72
HV		 1011 /*
1012 * Drivers MUST fill in device_caps, so check for this and
1013 * warn if it was forgotten.
1014 */
6d7570c4
LA		 1015 WARN(!(cap->capabilities & V4L2_CAP_DEVICE_CAPS) ||
1016 !cap->device_caps, "Bad caps for driver %s, %x %x",
1017 cap->driver, cap->capabilities, cap->device_caps);
796a2bd2 1018 cap->device_caps |= V4L2_CAP_EXT_PIX_FORMAT;
d52e2381
LP		 1019
1020 return ret;
59076122
HV		 1021}
1022
1023static int v4l_s_input(const struct v4l2_ioctl_ops *ops,
1024 struct file *file, void *fh, void *arg)
1025{
77fa4e07
SK		 1026 struct video_device *vfd = video_devdata(file);
1027 int ret;
1028
1029 ret = v4l_enable_media_source(vfd);
1030 if (ret)
1031 return ret;
59076122
HV		 1032 return ops->vidioc_s_input(file, fh, *(unsigned int *)arg);
1033}
1034
1035static int v4l_s_output(const struct v4l2_ioctl_ops *ops,
1036 struct file *file, void *fh, void *arg)
1037{
1038 return ops->vidioc_s_output(file, fh, *(unsigned int *)arg);
1039}
1040
d0547cba
HV		 1041static int v4l_g_priority(const struct v4l2_ioctl_ops *ops,
1042 struct file *file, void *fh, void *arg)
1043{
1044 struct video_device *vfd;
1045 u32 *p = arg;
1046
d0547cba 1047 vfd = video_devdata(file);
59b702ea 1048 *p = v4l2_prio_max(vfd->prio);
d0547cba
HV		 1049 return 0;
1050}
1051
1052static int v4l_s_priority(const struct v4l2_ioctl_ops *ops,
1053 struct file *file, void *fh, void *arg)
1054{
1055 struct video_device *vfd;
1056 struct v4l2_fh *vfh;
1057 u32 *p = arg;
1058
d0547cba 1059 vfd = video_devdata(file);
2438e78a
HV		 1060 if (!test_bit(V4L2_FL_USES_V4L2_FH, &vfd->flags))
1061 return -ENOTTY;
d0547cba 1062 vfh = file->private_data;
59b702ea 1063 return v4l2_prio_change(vfd->prio, &vfh->prio, *p);
d0547cba
HV		 1064}
1065
59076122
HV		 1066static int v4l_enuminput(const struct v4l2_ioctl_ops *ops,
1067 struct file *file, void *fh, void *arg)
1068{
73f35418 1069 struct video_device *vfd = video_devdata(file);
59076122
HV		 1070 struct v4l2_input *p = arg;
1071
1072 /*
02fa6282 1073 * We set the flags for CAP_DV_TIMINGS &
59076122
HV		 1074 * CAP_STD here based on ioctl handler provided by the
1075 * driver. If the driver doesn't support these
1076 * for a specific input, it must override these flags.
1077 */
73f35418 1078 if (is_valid_ioctl(vfd, VIDIOC_S_STD))
59076122 1079 p->capabilities |= V4L2_IN_CAP_STD;
59076122
HV		 1080
1081 return ops->vidioc_enum_input(file, fh, p);
1082}
1083
1084static int v4l_enumoutput(const struct v4l2_ioctl_ops *ops,
1085 struct file *file, void *fh, void *arg)
1086{
73f35418 1087 struct video_device *vfd = video_devdata(file);
59076122
HV		 1088 struct v4l2_output *p = arg;
1089
1090 /*
02fa6282 1091 * We set the flags for CAP_DV_TIMINGS &
59076122
HV		 1092 * CAP_STD here based on ioctl handler provided by the
1093 * driver. If the driver doesn't support these
1094 * for a specific output, it must override these flags.
1095 */
73f35418 1096 if (is_valid_ioctl(vfd, VIDIOC_S_STD))
59076122 1097 p->capabilities |= V4L2_OUT_CAP_STD;
59076122
HV		 1098
1099 return ops->vidioc_enum_output(file, fh, p);
1100}
1101
ba300204
HV		 1102static void v4l_fill_fmtdesc(struct v4l2_fmtdesc *fmt)
1103{
1104 const unsigned sz = sizeof(fmt->description);
1105 const char *descr = NULL;
1106 u32 flags = 0;
1107
1108 /*
1109 * We depart from the normal coding style here since the descriptions
1110 * should be aligned so it is easy to see which descriptions will be
1111 * longer than 31 characters (the max length for a description).
1112 * And frankly, this is easier to read anyway.
1113 *
1114 * Note that gcc will use O(log N) comparisons to find the right case.
1115 */
1116 switch (fmt->pixelformat) {
1117 /* Max description length mask: descr = "0123456789012345678901234567890" */
1118 case V4L2_PIX_FMT_RGB332: descr = "8-bit RGB 3-3-2"; break;
1119 case V4L2_PIX_FMT_RGB444: descr = "16-bit A/XRGB 4-4-4-4"; break;
1120 case V4L2_PIX_FMT_ARGB444: descr = "16-bit ARGB 4-4-4-4"; break;
1121 case V4L2_PIX_FMT_XRGB444: descr = "16-bit XRGB 4-4-4-4"; break;
1122 case V4L2_PIX_FMT_RGB555: descr = "16-bit A/XRGB 1-5-5-5"; break;
1123 case V4L2_PIX_FMT_ARGB555: descr = "16-bit ARGB 1-5-5-5"; break;
1124 case V4L2_PIX_FMT_XRGB555: descr = "16-bit XRGB 1-5-5-5"; break;
1125 case V4L2_PIX_FMT_RGB565: descr = "16-bit RGB 5-6-5"; break;
1126 case V4L2_PIX_FMT_RGB555X: descr = "16-bit A/XRGB 1-5-5-5 BE"; break;
1127 case V4L2_PIX_FMT_ARGB555X: descr = "16-bit ARGB 1-5-5-5 BE"; break;
1128 case V4L2_PIX_FMT_XRGB555X: descr = "16-bit XRGB 1-5-5-5 BE"; break;
1129 case V4L2_PIX_FMT_RGB565X: descr = "16-bit RGB 5-6-5 BE"; break;
1130 case V4L2_PIX_FMT_BGR666: descr = "18-bit BGRX 6-6-6-14"; break;
1131 case V4L2_PIX_FMT_BGR24: descr = "24-bit BGR 8-8-8"; break;
1132 case V4L2_PIX_FMT_RGB24: descr = "24-bit RGB 8-8-8"; break;
1133 case V4L2_PIX_FMT_BGR32: descr = "32-bit BGRA/X 8-8-8-8"; break;
1134 case V4L2_PIX_FMT_ABGR32: descr = "32-bit BGRA 8-8-8-8"; break;
1135 case V4L2_PIX_FMT_XBGR32: descr = "32-bit BGRX 8-8-8-8"; break;
1136 case V4L2_PIX_FMT_RGB32: descr = "32-bit A/XRGB 8-8-8-8"; break;
1137 case V4L2_PIX_FMT_ARGB32: descr = "32-bit ARGB 8-8-8-8"; break;
1138 case V4L2_PIX_FMT_XRGB32: descr = "32-bit XRGB 8-8-8-8"; break;
1139 case V4L2_PIX_FMT_GREY: descr = "8-bit Greyscale"; break;
1140 case V4L2_PIX_FMT_Y4: descr = "4-bit Greyscale"; break;
1141 case V4L2_PIX_FMT_Y6: descr = "6-bit Greyscale"; break;
1142 case V4L2_PIX_FMT_Y10: descr = "10-bit Greyscale"; break;
1143 case V4L2_PIX_FMT_Y12: descr = "12-bit Greyscale"; break;
1144 case V4L2_PIX_FMT_Y16: descr = "16-bit Greyscale"; break;
2e5e435f 1145 case V4L2_PIX_FMT_Y16_BE: descr = "16-bit Greyscale BE"; break;
ba300204 1146 case V4L2_PIX_FMT_Y10BPACK: descr = "10-bit Greyscale (Packed)"; break;
5b382290
LP		 1147 case V4L2_PIX_FMT_Y8I: descr = "Interleaved 8-bit Greyscale"; break;
1148 case V4L2_PIX_FMT_Y12I: descr = "Interleaved 12-bit Greyscale"; break;
1149 case V4L2_PIX_FMT_Z16: descr = "16-bit Depth"; break;
5df082e2 1150 case V4L2_PIX_FMT_INZI: descr = "Planar 10:16 Greyscale Depth"; break;
ba300204
HV		 1151 case V4L2_PIX_FMT_PAL8: descr = "8-bit Palette"; break;
1152 case V4L2_PIX_FMT_UV8: descr = "8-bit Chrominance UV 4-4"; break;
1153 case V4L2_PIX_FMT_YVU410: descr = "Planar YVU 4:1:0"; break;
1154 case V4L2_PIX_FMT_YVU420: descr = "Planar YVU 4:2:0"; break;
1155 case V4L2_PIX_FMT_YUYV: descr = "YUYV 4:2:2"; break;
1156 case V4L2_PIX_FMT_YYUV: descr = "YYUV 4:2:2"; break;
1157 case V4L2_PIX_FMT_YVYU: descr = "YVYU 4:2:2"; break;
1158 case V4L2_PIX_FMT_UYVY: descr = "UYVY 4:2:2"; break;
1159 case V4L2_PIX_FMT_VYUY: descr = "VYUY 4:2:2"; break;
fcbafafb 1160 case V4L2_PIX_FMT_YUV422P: descr = "Planar YUV 4:2:2"; break;
ba300204
HV		 1161 case V4L2_PIX_FMT_YUV411P: descr = "Planar YUV 4:1:1"; break;
1162 case V4L2_PIX_FMT_Y41P: descr = "YUV 4:1:1 (Packed)"; break;
1163 case V4L2_PIX_FMT_YUV444: descr = "16-bit A/XYUV 4-4-4-4"; break;
1164 case V4L2_PIX_FMT_YUV555: descr = "16-bit A/XYUV 1-5-5-5"; break;
1165 case V4L2_PIX_FMT_YUV565: descr = "16-bit YUV 5-6-5"; break;
1166 case V4L2_PIX_FMT_YUV32: descr = "32-bit A/XYUV 8-8-8-8"; break;
1167 case V4L2_PIX_FMT_YUV410: descr = "Planar YUV 4:1:0"; break;
1168 case V4L2_PIX_FMT_YUV420: descr = "Planar YUV 4:2:0"; break;
1169 case V4L2_PIX_FMT_HI240: descr = "8-bit Dithered RGB (BTTV)"; break;
1170 case V4L2_PIX_FMT_HM12: descr = "YUV 4:2:0 (16x16 Macroblocks)"; break;
1171 case V4L2_PIX_FMT_M420: descr = "YUV 4:2:0 (M420)"; break;
1172 case V4L2_PIX_FMT_NV12: descr = "Y/CbCr 4:2:0"; break;
1173 case V4L2_PIX_FMT_NV21: descr = "Y/CrCb 4:2:0"; break;
1174 case V4L2_PIX_FMT_NV16: descr = "Y/CbCr 4:2:2"; break;
1175 case V4L2_PIX_FMT_NV61: descr = "Y/CrCb 4:2:2"; break;
1176 case V4L2_PIX_FMT_NV24: descr = "Y/CbCr 4:4:4"; break;
1177 case V4L2_PIX_FMT_NV42: descr = "Y/CrCb 4:4:4"; break;
1178 case V4L2_PIX_FMT_NV12M: descr = "Y/CbCr 4:2:0 (N-C)"; break;
1179 case V4L2_PIX_FMT_NV21M: descr = "Y/CrCb 4:2:0 (N-C)"; break;
1180 case V4L2_PIX_FMT_NV16M: descr = "Y/CbCr 4:2:2 (N-C)"; break;
1181 case V4L2_PIX_FMT_NV61M: descr = "Y/CrCb 4:2:2 (N-C)"; break;
1182 case V4L2_PIX_FMT_NV12MT: descr = "Y/CbCr 4:2:0 (64x32 MB, N-C)"; break;
1183 case V4L2_PIX_FMT_NV12MT_16X16: descr = "Y/CbCr 4:2:0 (16x16 MB, N-C)"; break;
1184 case V4L2_PIX_FMT_YUV420M: descr = "Planar YUV 4:2:0 (N-C)"; break;
1185 case V4L2_PIX_FMT_YVU420M: descr = "Planar YVU 4:2:0 (N-C)"; break;
d65fae92
LP		 1186 case V4L2_PIX_FMT_YUV422M: descr = "Planar YUV 4:2:2 (N-C)"; break;
1187 case V4L2_PIX_FMT_YVU422M: descr = "Planar YVU 4:2:2 (N-C)"; break;
1188 case V4L2_PIX_FMT_YUV444M: descr = "Planar YUV 4:4:4 (N-C)"; break;
1189 case V4L2_PIX_FMT_YVU444M: descr = "Planar YVU 4:4:4 (N-C)"; break;
ba300204
HV		 1190 case V4L2_PIX_FMT_SBGGR8: descr = "8-bit Bayer BGBG/GRGR"; break;
1191 case V4L2_PIX_FMT_SGBRG8: descr = "8-bit Bayer GBGB/RGRG"; break;
1192 case V4L2_PIX_FMT_SGRBG8: descr = "8-bit Bayer GRGR/BGBG"; break;
1193 case V4L2_PIX_FMT_SRGGB8: descr = "8-bit Bayer RGRG/GBGB"; break;
1194 case V4L2_PIX_FMT_SBGGR10: descr = "10-bit Bayer BGBG/GRGR"; break;
1195 case V4L2_PIX_FMT_SGBRG10: descr = "10-bit Bayer GBGB/RGRG"; break;
1196 case V4L2_PIX_FMT_SGRBG10: descr = "10-bit Bayer GRGR/BGBG"; break;
1197 case V4L2_PIX_FMT_SRGGB10: descr = "10-bit Bayer RGRG/GBGB"; break;
1198 case V4L2_PIX_FMT_SBGGR12: descr = "12-bit Bayer BGBG/GRGR"; break;
1199 case V4L2_PIX_FMT_SGBRG12: descr = "12-bit Bayer GBGB/RGRG"; break;
1200 case V4L2_PIX_FMT_SGRBG12: descr = "12-bit Bayer GRGR/BGBG"; break;
1201 case V4L2_PIX_FMT_SRGGB12: descr = "12-bit Bayer RGRG/GBGB"; break;
1202 case V4L2_PIX_FMT_SBGGR10P: descr = "10-bit Bayer BGBG/GRGR Packed"; break;
1203 case V4L2_PIX_FMT_SGBRG10P: descr = "10-bit Bayer GBGB/RGRG Packed"; break;
1204 case V4L2_PIX_FMT_SGRBG10P: descr = "10-bit Bayer GRGR/BGBG Packed"; break;
1205 case V4L2_PIX_FMT_SRGGB10P: descr = "10-bit Bayer RGRG/GBGB Packed"; break;
1206 case V4L2_PIX_FMT_SBGGR10ALAW8: descr = "8-bit Bayer BGBG/GRGR (A-law)"; break;
1207 case V4L2_PIX_FMT_SGBRG10ALAW8: descr = "8-bit Bayer GBGB/RGRG (A-law)"; break;
1208 case V4L2_PIX_FMT_SGRBG10ALAW8: descr = "8-bit Bayer GRGR/BGBG (A-law)"; break;
1209 case V4L2_PIX_FMT_SRGGB10ALAW8: descr = "8-bit Bayer RGRG/GBGB (A-law)"; break;
1210 case V4L2_PIX_FMT_SBGGR10DPCM8: descr = "8-bit Bayer BGBG/GRGR (DPCM)"; break;
1211 case V4L2_PIX_FMT_SGBRG10DPCM8: descr = "8-bit Bayer GBGB/RGRG (DPCM)"; break;
1212 case V4L2_PIX_FMT_SGRBG10DPCM8: descr = "8-bit Bayer GRGR/BGBG (DPCM)"; break;
1213 case V4L2_PIX_FMT_SRGGB10DPCM8: descr = "8-bit Bayer RGRG/GBGB (DPCM)"; break;
b9a4b13c
SA		 1214 case V4L2_PIX_FMT_SBGGR16: descr = "16-bit Bayer BGBG/GRGR"; break;
1215 case V4L2_PIX_FMT_SGBRG16: descr = "16-bit Bayer GBGB/RGRG"; break;
1216 case V4L2_PIX_FMT_SGRBG16: descr = "16-bit Bayer GRGR/BGBG"; break;
1217 case V4L2_PIX_FMT_SRGGB16: descr = "16-bit Bayer RGRG/GBGB"; break;
99b74277 1218 case V4L2_PIX_FMT_SN9C20X_I420: descr = "GSPCA SN9C20X I420"; break;
ba300204
HV		 1219 case V4L2_PIX_FMT_SPCA501: descr = "GSPCA SPCA501"; break;
1220 case V4L2_PIX_FMT_SPCA505: descr = "GSPCA SPCA505"; break;
1221 case V4L2_PIX_FMT_SPCA508: descr = "GSPCA SPCA508"; break;
1222 case V4L2_PIX_FMT_STV0680: descr = "GSPCA STV0680"; break;
1223 case V4L2_PIX_FMT_TM6000: descr = "A/V + VBI Mux Packet"; break;
1224 case V4L2_PIX_FMT_CIT_YYVYUY: descr = "GSPCA CIT YYVYUY"; break;
1225 case V4L2_PIX_FMT_KONICA420: descr = "GSPCA KONICA420"; break;
66b2ab27
RRD		 1226 case V4L2_PIX_FMT_HSV24: descr = "24-bit HSV 8-8-8"; break;
1227 case V4L2_PIX_FMT_HSV32: descr = "32-bit XHSV 8-8-8-8"; break;
48fc10aa
AP		 1228 case V4L2_SDR_FMT_CU8: descr = "Complex U8"; break;
1229 case V4L2_SDR_FMT_CU16LE: descr = "Complex U16LE"; break;
ba300204
HV		 1230 case V4L2_SDR_FMT_CS8: descr = "Complex S8"; break;
1231 case V4L2_SDR_FMT_CS14LE: descr = "Complex S14LE"; break;
1232 case V4L2_SDR_FMT_RU12LE: descr = "Real U12LE"; break;
c28f2118
RS		 1233 case V4L2_SDR_FMT_PCU16BE: descr = "Planar Complex U16BE"; break;
1234 case V4L2_SDR_FMT_PCU18BE: descr = "Planar Complex U18BE"; break;
1235 case V4L2_SDR_FMT_PCU20BE: descr = "Planar Complex U20BE"; break;
b2fe22d0
ND		 1236 case V4L2_TCH_FMT_DELTA_TD16: descr = "16-bit signed deltas"; break;
1237 case V4L2_TCH_FMT_DELTA_TD08: descr = "8-bit signed deltas"; break;
1238 case V4L2_TCH_FMT_TU16: descr = "16-bit unsigned touch data"; break;
1239 case V4L2_TCH_FMT_TU08: descr = "8-bit unsigned touch data"; break;
14d66538 1240 case V4L2_META_FMT_VSP1_HGO: descr = "R-Car VSP1 1-D Histogram"; break;
5deb1c04 1241 case V4L2_META_FMT_VSP1_HGT: descr = "R-Car VSP1 2-D Histogram"; break;
ba300204
HV		 1242
1243 default:
1244 /* Compressed formats */
1245 flags = V4L2_FMT_FLAG_COMPRESSED;
1246 switch (fmt->pixelformat) {
1247 /* Max description length mask: descr = "0123456789012345678901234567890" */
1248 case V4L2_PIX_FMT_MJPEG: descr = "Motion-JPEG"; break;
1249 case V4L2_PIX_FMT_JPEG: descr = "JFIF JPEG"; break;
1250 case V4L2_PIX_FMT_DV: descr = "1394"; break;
1251 case V4L2_PIX_FMT_MPEG: descr = "MPEG-1/2/4"; break;
1252 case V4L2_PIX_FMT_H264: descr = "H.264"; break;
1253 case V4L2_PIX_FMT_H264_NO_SC: descr = "H.264 (No Start Codes)"; break;
1254 case V4L2_PIX_FMT_H264_MVC: descr = "H.264 MVC"; break;
1255 case V4L2_PIX_FMT_H263: descr = "H.263"; break;
1256 case V4L2_PIX_FMT_MPEG1: descr = "MPEG-1 ES"; break;
1257 case V4L2_PIX_FMT_MPEG2: descr = "MPEG-2 ES"; break;
1258 case V4L2_PIX_FMT_MPEG4: descr = "MPEG-4 part 2 ES"; break;
1259 case V4L2_PIX_FMT_XVID: descr = "Xvid"; break;
1260 case V4L2_PIX_FMT_VC1_ANNEX_G: descr = "VC-1 (SMPTE 412M Annex G)"; break;
1261 case V4L2_PIX_FMT_VC1_ANNEX_L: descr = "VC-1 (SMPTE 412M Annex L)"; break;
1262 case V4L2_PIX_FMT_VP8: descr = "VP8"; break;
fa14a564 1263 case V4L2_PIX_FMT_VP9: descr = "VP9"; break;
ba300204
HV		 1264 case V4L2_PIX_FMT_CPIA1: descr = "GSPCA CPiA YUV"; break;
1265 case V4L2_PIX_FMT_WNVA: descr = "WNVA"; break;
1266 case V4L2_PIX_FMT_SN9C10X: descr = "GSPCA SN9C10X"; break;
1267 case V4L2_PIX_FMT_PWC1: descr = "Raw Philips Webcam Type (Old)"; break;
1268 case V4L2_PIX_FMT_PWC2: descr = "Raw Philips Webcam Type (New)"; break;
1269 case V4L2_PIX_FMT_ET61X251: descr = "GSPCA ET61X251"; break;
1270 case V4L2_PIX_FMT_SPCA561: descr = "GSPCA SPCA561"; break;
1271 case V4L2_PIX_FMT_PAC207: descr = "GSPCA PAC207"; break;
1272 case V4L2_PIX_FMT_MR97310A: descr = "GSPCA MR97310A"; break;
1273 case V4L2_PIX_FMT_JL2005BCD: descr = "GSPCA JL2005BCD"; break;
1274 case V4L2_PIX_FMT_SN9C2028: descr = "GSPCA SN9C2028"; break;
1275 case V4L2_PIX_FMT_SQ905C: descr = "GSPCA SQ905C"; break;
1276 case V4L2_PIX_FMT_PJPG: descr = "GSPCA PJPG"; break;
1277 case V4L2_PIX_FMT_OV511: descr = "GSPCA OV511"; break;
1278 case V4L2_PIX_FMT_OV518: descr = "GSPCA OV518"; break;
1279 case V4L2_PIX_FMT_JPGL: descr = "JPEG Lite"; break;
1280 case V4L2_PIX_FMT_SE401: descr = "GSPCA SE401"; break;
1281 case V4L2_PIX_FMT_S5C_UYVY_JPG: descr = "S5C73MX interleaved UYVY/JPEG"; break;
d4de6634 1282 case V4L2_PIX_FMT_MT21C: descr = "Mediatek Compressed Format"; break;
ba300204
HV		 1283 default:
1284 WARN(1, "Unknown pixelformat 0x%08x\n", fmt->pixelformat);
1285 if (fmt->description[0])
1286 return;
1287 flags = 0;
1288 snprintf(fmt->description, sz, "%c%c%c%c%s",
1289 (char)(fmt->pixelformat & 0x7f),
1290 (char)((fmt->pixelformat >> 8) & 0x7f),
1291 (char)((fmt->pixelformat >> 16) & 0x7f),
1292 (char)((fmt->pixelformat >> 24) & 0x7f),
1293 (fmt->pixelformat & (1 << 31)) ? "-BE" : "");
1294 break;
1295 }
1296 }
1297
1298 if (descr)
1299 WARN_ON(strlcpy(fmt->description, descr, sz) >= sz);
1300 fmt->flags = flags;
1301}
1302
be6c64e4
HV		 1303static int v4l_enum_fmt(const struct v4l2_ioctl_ops *ops,
1304 struct file *file, void *fh, void *arg)
1305{
1306 struct v4l2_fmtdesc *p = arg;
4b20259f 1307 struct video_device *vfd = video_devdata(file);
ce71bbc9
HV		 1308 bool is_vid = vfd->vfl_type == VFL_TYPE_GRABBER;
1309 bool is_sdr = vfd->vfl_type == VFL_TYPE_SDR;
b2fe22d0 1310 bool is_tch = vfd->vfl_type == VFL_TYPE_TOUCH;
4b20259f
HV		 1311 bool is_rx = vfd->vfl_dir != VFL_DIR_TX;
1312 bool is_tx = vfd->vfl_dir != VFL_DIR_RX;
ba300204 1313 int ret = -EINVAL;
be6c64e4
HV		 1314
1315 switch (p->type) {
1316 case V4L2_BUF_TYPE_VIDEO_CAPTURE:
b2fe22d0 1317 if (unlikely(!is_rx || (!is_vid && !is_tch) || !ops->vidioc_enum_fmt_vid_cap))
be6c64e4 1318 break;
ba300204
HV		 1319 ret = ops->vidioc_enum_fmt_vid_cap(file, fh, arg);
1320 break;
be6c64e4 1321 case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE:
ce71bbc9 1322 if (unlikely(!is_rx || !is_vid || !ops->vidioc_enum_fmt_vid_cap_mplane))
be6c64e4 1323 break;
ba300204
HV		 1324 ret = ops->vidioc_enum_fmt_vid_cap_mplane(file, fh, arg);
1325 break;
be6c64e4 1326 case V4L2_BUF_TYPE_VIDEO_OVERLAY:
ce71bbc9 1327 if (unlikely(!is_rx || !is_vid || !ops->vidioc_enum_fmt_vid_overlay))
be6c64e4 1328 break;
ba300204
HV		 1329 ret = ops->vidioc_enum_fmt_vid_overlay(file, fh, arg);
1330 break;
be6c64e4 1331 case V4L2_BUF_TYPE_VIDEO_OUTPUT:
ce71bbc9 1332 if (unlikely(!is_tx || !is_vid || !ops->vidioc_enum_fmt_vid_out))
be6c64e4 1333 break;
ba300204
HV		 1334 ret = ops->vidioc_enum_fmt_vid_out(file, fh, arg);
1335 break;
be6c64e4 1336 case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE:
ce71bbc9 1337 if (unlikely(!is_tx || !is_vid || !ops->vidioc_enum_fmt_vid_out_mplane))
be6c64e4 1338 break;
ba300204
HV		 1339 ret = ops->vidioc_enum_fmt_vid_out_mplane(file, fh, arg);
1340 break;
582c52cb 1341 case V4L2_BUF_TYPE_SDR_CAPTURE:
ce71bbc9 1342 if (unlikely(!is_rx || !is_sdr || !ops->vidioc_enum_fmt_sdr_cap))
582c52cb 1343 break;
ba300204
HV		 1344 ret = ops->vidioc_enum_fmt_sdr_cap(file, fh, arg);
1345 break;
9effc72f
AP		 1346 case V4L2_BUF_TYPE_SDR_OUTPUT:
1347 if (unlikely(!is_tx || !is_sdr || !ops->vidioc_enum_fmt_sdr_out))
1348 break;
1349 ret = ops->vidioc_enum_fmt_sdr_out(file, fh, arg);
1350 break;
fb9ffa6a
LP		 1351 case V4L2_BUF_TYPE_META_CAPTURE:
1352 if (unlikely(!is_rx || !is_vid || !ops->vidioc_enum_fmt_meta_cap))
1353 break;
1354 ret = ops->vidioc_enum_fmt_meta_cap(file, fh, arg);
1355 break;
be6c64e4 1356 }
ba300204
HV		 1357 if (ret == 0)
1358 v4l_fill_fmtdesc(p);
1359 return ret;
be6c64e4
HV		 1360}
1361
1362static int v4l_g_fmt(const struct v4l2_ioctl_ops *ops,
1363 struct file *file, void *fh, void *arg)
1364{
1365 struct v4l2_format *p = arg;
4b20259f
HV		 1366 struct video_device *vfd = video_devdata(file);
1367 bool is_vid = vfd->vfl_type == VFL_TYPE_GRABBER;
582c52cb 1368 bool is_sdr = vfd->vfl_type == VFL_TYPE_SDR;
b2fe22d0 1369 bool is_tch = vfd->vfl_type == VFL_TYPE_TOUCH;
4b20259f
HV		 1370 bool is_rx = vfd->vfl_dir != VFL_DIR_TX;
1371 bool is_tx = vfd->vfl_dir != VFL_DIR_RX;
d52e2381
LP		 1372 int ret;
1373
e5ce558a
HV		 1374 /*
1375 * fmt can't be cleared for these overlay types due to the 'clips'
1376 * 'clipcount' and 'bitmap' pointers in struct v4l2_window.
1377 * Those are provided by the user. So handle these two overlay types
1378 * first, and then just do a simple memset for the other types.
1379 */
1380 switch (p->type) {
1381 case V4L2_BUF_TYPE_VIDEO_OVERLAY:
1382 case V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY: {
4d1afa51 1383 struct v4l2_clip __user *clips = p->fmt.win.clips;
e5ce558a 1384 u32 clipcount = p->fmt.win.clipcount;
4d1afa51 1385 void __user *bitmap = p->fmt.win.bitmap;
e5ce558a
HV		 1386
1387 memset(&p->fmt, 0, sizeof(p->fmt));
1388 p->fmt.win.clips = clips;
1389 p->fmt.win.clipcount = clipcount;
1390 p->fmt.win.bitmap = bitmap;
1391 break;
1392 }
1393 default:
1394 memset(&p->fmt, 0, sizeof(p->fmt));
1395 break;
1396 }
1397
be6c64e4
HV		 1398 switch (p->type) {
1399 case V4L2_BUF_TYPE_VIDEO_CAPTURE:
b2fe22d0 1400 if (unlikely(!is_rx || (!is_vid && !is_tch) || !ops->vidioc_g_fmt_vid_cap))
be6c64e4 1401 break;
48f2650a 1402 p->fmt.pix.priv = V4L2_PIX_FMT_PRIV_MAGIC;
d52e2381 1403 ret = ops->vidioc_g_fmt_vid_cap(file, fh, arg);
48f2650a 1404 /* just in case the driver zeroed it again */
d52e2381
LP		 1405 p->fmt.pix.priv = V4L2_PIX_FMT_PRIV_MAGIC;
1406 return ret;
be6c64e4 1407 case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE:
4b20259f 1408 if (unlikely(!is_rx || !is_vid || !ops->vidioc_g_fmt_vid_cap_mplane))
be6c64e4
HV		 1409 break;
1410 return ops->vidioc_g_fmt_vid_cap_mplane(file, fh, arg);
1411 case V4L2_BUF_TYPE_VIDEO_OVERLAY:
4b20259f 1412 if (unlikely(!is_rx || !is_vid || !ops->vidioc_g_fmt_vid_overlay))
be6c64e4
HV		 1413 break;
1414 return ops->vidioc_g_fmt_vid_overlay(file, fh, arg);
4b20259f
HV		 1415 case V4L2_BUF_TYPE_VBI_CAPTURE:
1416 if (unlikely(!is_rx || is_vid || !ops->vidioc_g_fmt_vbi_cap))
1417 break;
1418 return ops->vidioc_g_fmt_vbi_cap(file, fh, arg);
1419 case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE:
1420 if (unlikely(!is_rx || is_vid || !ops->vidioc_g_fmt_sliced_vbi_cap))
1421 break;
1422 return ops->vidioc_g_fmt_sliced_vbi_cap(file, fh, arg);
be6c64e4 1423 case V4L2_BUF_TYPE_VIDEO_OUTPUT:
4b20259f 1424 if (unlikely(!is_tx || !is_vid || !ops->vidioc_g_fmt_vid_out))
be6c64e4 1425 break;
48f2650a 1426 p->fmt.pix.priv = V4L2_PIX_FMT_PRIV_MAGIC;
d52e2381 1427 ret = ops->vidioc_g_fmt_vid_out(file, fh, arg);
48f2650a 1428 /* just in case the driver zeroed it again */
d52e2381
LP		 1429 p->fmt.pix.priv = V4L2_PIX_FMT_PRIV_MAGIC;
1430 return ret;
be6c64e4 1431 case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE:
4b20259f 1432 if (unlikely(!is_tx || !is_vid || !ops->vidioc_g_fmt_vid_out_mplane))
be6c64e4
HV		 1433 break;
1434 return ops->vidioc_g_fmt_vid_out_mplane(file, fh, arg);
1435 case V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY:
4b20259f 1436 if (unlikely(!is_tx || !is_vid || !ops->vidioc_g_fmt_vid_out_overlay))
be6c64e4
HV		 1437 break;
1438 return ops->vidioc_g_fmt_vid_out_overlay(file, fh, arg);
be6c64e4 1439 case V4L2_BUF_TYPE_VBI_OUTPUT:
4b20259f 1440 if (unlikely(!is_tx || is_vid || !ops->vidioc_g_fmt_vbi_out))
be6c64e4
HV		 1441 break;
1442 return ops->vidioc_g_fmt_vbi_out(file, fh, arg);
be6c64e4 1443 case V4L2_BUF_TYPE_SLICED_VBI_OUTPUT:
4b20259f 1444 if (unlikely(!is_tx || is_vid || !ops->vidioc_g_fmt_sliced_vbi_out))
be6c64e4
HV		 1445 break;
1446 return ops->vidioc_g_fmt_sliced_vbi_out(file, fh, arg);
582c52cb
AP		 1447 case V4L2_BUF_TYPE_SDR_CAPTURE:
1448 if (unlikely(!is_rx || !is_sdr || !ops->vidioc_g_fmt_sdr_cap))
1449 break;
1450 return ops->vidioc_g_fmt_sdr_cap(file, fh, arg);
9effc72f
AP		 1451 case V4L2_BUF_TYPE_SDR_OUTPUT:
1452 if (unlikely(!is_tx || !is_sdr || !ops->vidioc_g_fmt_sdr_out))
1453 break;
1454 return ops->vidioc_g_fmt_sdr_out(file, fh, arg);
fb9ffa6a
LP		 1455 case V4L2_BUF_TYPE_META_CAPTURE:
1456 if (unlikely(!is_rx || !is_vid || !ops->vidioc_g_fmt_meta_cap))
1457 break;
1458 return ops->vidioc_g_fmt_meta_cap(file, fh, arg);
be6c64e4
HV		 1459 }
1460 return -EINVAL;
1461}
1462
b2fe22d0
ND		 1463static void v4l_pix_format_touch(struct v4l2_pix_format *p)
1464{
1465 /*
1466 * The v4l2_pix_format structure contains fields that make no sense for
1467 * touch. Set them to default values in this case.
1468 */
1469
1470 p->field = V4L2_FIELD_NONE;
1471 p->colorspace = V4L2_COLORSPACE_RAW;
1472 p->flags = 0;
1473 p->ycbcr_enc = 0;
1474 p->quantization = 0;
1475 p->xfer_func = 0;
1476}
1477
be6c64e4
HV		 1478static int v4l_s_fmt(const struct v4l2_ioctl_ops *ops,
1479 struct file *file, void *fh, void *arg)
1480{
1481 struct v4l2_format *p = arg;
4b20259f
HV		 1482 struct video_device *vfd = video_devdata(file);
1483 bool is_vid = vfd->vfl_type == VFL_TYPE_GRABBER;
582c52cb 1484 bool is_sdr = vfd->vfl_type == VFL_TYPE_SDR;
b2fe22d0 1485 bool is_tch = vfd->vfl_type == VFL_TYPE_TOUCH;
4b20259f
HV		 1486 bool is_rx = vfd->vfl_dir != VFL_DIR_TX;
1487 bool is_tx = vfd->vfl_dir != VFL_DIR_RX;
48f2650a 1488 int ret;
be6c64e4 1489
77fa4e07
SK		 1490 ret = v4l_enable_media_source(vfd);
1491 if (ret)
1492 return ret;
d52e2381
LP		 1493 v4l_sanitize_format(p);
1494
be6c64e4
HV		 1495 switch (p->type) {
1496 case V4L2_BUF_TYPE_VIDEO_CAPTURE:
b2fe22d0 1497 if (unlikely(!is_rx || (!is_vid && !is_tch) || !ops->vidioc_s_fmt_vid_cap))
be6c64e4
HV		 1498 break;
1499 CLEAR_AFTER_FIELD(p, fmt.pix);
48f2650a
HV		 1500 ret = ops->vidioc_s_fmt_vid_cap(file, fh, arg);
1501 /* just in case the driver zeroed it again */
1502 p->fmt.pix.priv = V4L2_PIX_FMT_PRIV_MAGIC;
b2fe22d0
ND		 1503 if (is_tch)
1504 v4l_pix_format_touch(&p->fmt.pix);
48f2650a 1505 return ret;
be6c64e4 1506 case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE:
4b20259f 1507 if (unlikely(!is_rx || !is_vid || !ops->vidioc_s_fmt_vid_cap_mplane))
be6c64e4 1508 break;
c49148e8 1509 CLEAR_AFTER_FIELD(p, fmt.pix_mp.xfer_func);
be6c64e4
HV		 1510 return ops->vidioc_s_fmt_vid_cap_mplane(file, fh, arg);
1511 case V4L2_BUF_TYPE_VIDEO_OVERLAY:
4b20259f 1512 if (unlikely(!is_rx || !is_vid || !ops->vidioc_s_fmt_vid_overlay))
be6c64e4
HV		 1513 break;
1514 CLEAR_AFTER_FIELD(p, fmt.win);
1515 return ops->vidioc_s_fmt_vid_overlay(file, fh, arg);
4b20259f
HV		 1516 case V4L2_BUF_TYPE_VBI_CAPTURE:
1517 if (unlikely(!is_rx || is_vid || !ops->vidioc_s_fmt_vbi_cap))
1518 break;
1519 CLEAR_AFTER_FIELD(p, fmt.vbi);
1520 return ops->vidioc_s_fmt_vbi_cap(file, fh, arg);
1521 case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE:
1522 if (unlikely(!is_rx || is_vid || !ops->vidioc_s_fmt_sliced_vbi_cap))
1523 break;
1524 CLEAR_AFTER_FIELD(p, fmt.sliced);
1525 return ops->vidioc_s_fmt_sliced_vbi_cap(file, fh, arg);
be6c64e4 1526 case V4L2_BUF_TYPE_VIDEO_OUTPUT:
4b20259f 1527 if (unlikely(!is_tx || !is_vid || !ops->vidioc_s_fmt_vid_out))
be6c64e4
HV		 1528 break;
1529 CLEAR_AFTER_FIELD(p, fmt.pix);
48f2650a
HV		 1530 ret = ops->vidioc_s_fmt_vid_out(file, fh, arg);
1531 /* just in case the driver zeroed it again */
1532 p->fmt.pix.priv = V4L2_PIX_FMT_PRIV_MAGIC;
1533 return ret;
be6c64e4 1534 case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE:
4b20259f 1535 if (unlikely(!is_tx || !is_vid || !ops->vidioc_s_fmt_vid_out_mplane))
be6c64e4 1536 break;
c49148e8 1537 CLEAR_AFTER_FIELD(p, fmt.pix_mp.xfer_func);
be6c64e4
HV		 1538 return ops->vidioc_s_fmt_vid_out_mplane(file, fh, arg);
1539 case V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY:
4b20259f 1540 if (unlikely(!is_tx || !is_vid || !ops->vidioc_s_fmt_vid_out_overlay))
be6c64e4
HV		 1541 break;
1542 CLEAR_AFTER_FIELD(p, fmt.win);
1543 return ops->vidioc_s_fmt_vid_out_overlay(file, fh, arg);
be6c64e4 1544 case V4L2_BUF_TYPE_VBI_OUTPUT:
4b20259f 1545 if (unlikely(!is_tx || is_vid || !ops->vidioc_s_fmt_vbi_out))
be6c64e4
HV		 1546 break;
1547 CLEAR_AFTER_FIELD(p, fmt.vbi);
1548 return ops->vidioc_s_fmt_vbi_out(file, fh, arg);
be6c64e4 1549 case V4L2_BUF_TYPE_SLICED_VBI_OUTPUT:
4b20259f 1550 if (unlikely(!is_tx || is_vid || !ops->vidioc_s_fmt_sliced_vbi_out))
be6c64e4
HV		 1551 break;
1552 CLEAR_AFTER_FIELD(p, fmt.sliced);
1553 return ops->vidioc_s_fmt_sliced_vbi_out(file, fh, arg);
582c52cb
AP		 1554 case V4L2_BUF_TYPE_SDR_CAPTURE:
1555 if (unlikely(!is_rx || !is_sdr || !ops->vidioc_s_fmt_sdr_cap))
1556 break;
1557 CLEAR_AFTER_FIELD(p, fmt.sdr);
1558 return ops->vidioc_s_fmt_sdr_cap(file, fh, arg);
9effc72f
AP		 1559 case V4L2_BUF_TYPE_SDR_OUTPUT:
1560 if (unlikely(!is_tx || !is_sdr || !ops->vidioc_s_fmt_sdr_out))
1561 break;
1562 CLEAR_AFTER_FIELD(p, fmt.sdr);
1563 return ops->vidioc_s_fmt_sdr_out(file, fh, arg);
fb9ffa6a
LP		 1564 case V4L2_BUF_TYPE_META_CAPTURE:
1565 if (unlikely(!is_rx || !is_vid || !ops->vidioc_s_fmt_meta_cap))
1566 break;
1567 CLEAR_AFTER_FIELD(p, fmt.meta);
1568 return ops->vidioc_s_fmt_meta_cap(file, fh, arg);
be6c64e4
HV		 1569 }
1570 return -EINVAL;
1571}
1572
1573static int v4l_try_fmt(const struct v4l2_ioctl_ops *ops,
1574 struct file *file, void *fh, void *arg)
1575{
1576 struct v4l2_format *p = arg;
4b20259f
HV		 1577 struct video_device *vfd = video_devdata(file);
1578 bool is_vid = vfd->vfl_type == VFL_TYPE_GRABBER;
582c52cb 1579 bool is_sdr = vfd->vfl_type == VFL_TYPE_SDR;
b2fe22d0 1580 bool is_tch = vfd->vfl_type == VFL_TYPE_TOUCH;
4b20259f
HV		 1581 bool is_rx = vfd->vfl_dir != VFL_DIR_TX;
1582 bool is_tx = vfd->vfl_dir != VFL_DIR_RX;
48f2650a 1583 int ret;
be6c64e4 1584
d52e2381
LP		 1585 v4l_sanitize_format(p);
1586
be6c64e4
HV		 1587 switch (p->type) {
1588 case V4L2_BUF_TYPE_VIDEO_CAPTURE:
b2fe22d0 1589 if (unlikely(!is_rx || (!is_vid && !is_tch) || !ops->vidioc_try_fmt_vid_cap))
be6c64e4
HV		 1590 break;
1591 CLEAR_AFTER_FIELD(p, fmt.pix);
48f2650a
HV		 1592 ret = ops->vidioc_try_fmt_vid_cap(file, fh, arg);
1593 /* just in case the driver zeroed it again */
1594 p->fmt.pix.priv = V4L2_PIX_FMT_PRIV_MAGIC;
1595 return ret;
be6c64e4 1596 case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE:
4b20259f 1597 if (unlikely(!is_rx || !is_vid || !ops->vidioc_try_fmt_vid_cap_mplane))
be6c64e4 1598 break;
c49148e8 1599 CLEAR_AFTER_FIELD(p, fmt.pix_mp.xfer_func);
be6c64e4
HV		 1600 return ops->vidioc_try_fmt_vid_cap_mplane(file, fh, arg);
1601 case V4L2_BUF_TYPE_VIDEO_OVERLAY:
4b20259f 1602 if (unlikely(!is_rx || !is_vid || !ops->vidioc_try_fmt_vid_overlay))
be6c64e4
HV		 1603 break;
1604 CLEAR_AFTER_FIELD(p, fmt.win);
1605 return ops->vidioc_try_fmt_vid_overlay(file, fh, arg);
4b20259f
HV		 1606 case V4L2_BUF_TYPE_VBI_CAPTURE:
1607 if (unlikely(!is_rx || is_vid || !ops->vidioc_try_fmt_vbi_cap))
1608 break;
1609 CLEAR_AFTER_FIELD(p, fmt.vbi);
1610 return ops->vidioc_try_fmt_vbi_cap(file, fh, arg);
1611 case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE:
1612 if (unlikely(!is_rx || is_vid || !ops->vidioc_try_fmt_sliced_vbi_cap))
1613 break;
1614 CLEAR_AFTER_FIELD(p, fmt.sliced);
1615 return ops->vidioc_try_fmt_sliced_vbi_cap(file, fh, arg);
be6c64e4 1616 case V4L2_BUF_TYPE_VIDEO_OUTPUT:
4b20259f 1617 if (unlikely(!is_tx || !is_vid || !ops->vidioc_try_fmt_vid_out))
be6c64e4
HV		 1618 break;
1619 CLEAR_AFTER_FIELD(p, fmt.pix);
48f2650a
HV		 1620 ret = ops->vidioc_try_fmt_vid_out(file, fh, arg);
1621 /* just in case the driver zeroed it again */
1622 p->fmt.pix.priv = V4L2_PIX_FMT_PRIV_MAGIC;
1623 return ret;
be6c64e4 1624 case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE:
4b20259f 1625 if (unlikely(!is_tx || !is_vid || !ops->vidioc_try_fmt_vid_out_mplane))
be6c64e4 1626 break;
c49148e8 1627 CLEAR_AFTER_FIELD(p, fmt.pix_mp.xfer_func);
be6c64e4
HV		 1628 return ops->vidioc_try_fmt_vid_out_mplane(file, fh, arg);
1629 case V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY:
4b20259f 1630 if (unlikely(!is_tx || !is_vid || !ops->vidioc_try_fmt_vid_out_overlay))
be6c64e4
HV		 1631 break;
1632 CLEAR_AFTER_FIELD(p, fmt.win);
1633 return ops->vidioc_try_fmt_vid_out_overlay(file, fh, arg);
be6c64e4 1634 case V4L2_BUF_TYPE_VBI_OUTPUT:
4b20259f 1635 if (unlikely(!is_tx || is_vid || !ops->vidioc_try_fmt_vbi_out))
be6c64e4
HV		 1636 break;
1637 CLEAR_AFTER_FIELD(p, fmt.vbi);
1638 return ops->vidioc_try_fmt_vbi_out(file, fh, arg);
be6c64e4 1639 case V4L2_BUF_TYPE_SLICED_VBI_OUTPUT:
4b20259f 1640 if (unlikely(!is_tx || is_vid || !ops->vidioc_try_fmt_sliced_vbi_out))
be6c64e4
HV		 1641 break;
1642 CLEAR_AFTER_FIELD(p, fmt.sliced);
1643 return ops->vidioc_try_fmt_sliced_vbi_out(file, fh, arg);
582c52cb
AP		 1644 case V4L2_BUF_TYPE_SDR_CAPTURE:
1645 if (unlikely(!is_rx || !is_sdr || !ops->vidioc_try_fmt_sdr_cap))
1646 break;
1647 CLEAR_AFTER_FIELD(p, fmt.sdr);
1648 return ops->vidioc_try_fmt_sdr_cap(file, fh, arg);
9effc72f
AP		 1649 case V4L2_BUF_TYPE_SDR_OUTPUT:
1650 if (unlikely(!is_tx || !is_sdr || !ops->vidioc_try_fmt_sdr_out))
1651 break;
1652 CLEAR_AFTER_FIELD(p, fmt.sdr);
1653 return ops->vidioc_try_fmt_sdr_out(file, fh, arg);
fb9ffa6a
LP		 1654 case V4L2_BUF_TYPE_META_CAPTURE:
1655 if (unlikely(!is_rx || !is_vid || !ops->vidioc_try_fmt_meta_cap))
1656 break;
1657 CLEAR_AFTER_FIELD(p, fmt.meta);
1658 return ops->vidioc_try_fmt_meta_cap(file, fh, arg);
be6c64e4
HV		 1659 }
1660 return -EINVAL;
1661}
1662
e325b244
HV		 1663static int v4l_streamon(const struct v4l2_ioctl_ops *ops,
1664 struct file *file, void *fh, void *arg)
1665{
1666 return ops->vidioc_streamon(file, fh, *(unsigned int *)arg);
1667}
1668
1669static int v4l_streamoff(const struct v4l2_ioctl_ops *ops,
1670 struct file *file, void *fh, void *arg)
1671{
1672 return ops->vidioc_streamoff(file, fh, *(unsigned int *)arg);
1673}
1674
4b1e2e4d
HV		 1675static int v4l_g_tuner(const struct v4l2_ioctl_ops *ops,
1676 struct file *file, void *fh, void *arg)
1677{
1678 struct video_device *vfd = video_devdata(file);
1679 struct v4l2_tuner *p = arg;
82b655bf 1680 int err;
4b1e2e4d
HV		 1681
1682 p->type = (vfd->vfl_type == VFL_TYPE_RADIO) ?
1683 V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV;
82b655bf
HV		 1684 err = ops->vidioc_g_tuner(file, fh, p);
1685 if (!err)
1686 p->capability |= V4L2_TUNER_CAP_FREQ_BANDS;
1687 return err;
4b1e2e4d
HV		 1688}
1689
1690static int v4l_s_tuner(const struct v4l2_ioctl_ops *ops,
1691 struct file *file, void *fh, void *arg)
1692{
1693 struct video_device *vfd = video_devdata(file);
1694 struct v4l2_tuner *p = arg;
77fa4e07 1695 int ret;
4b1e2e4d 1696
77fa4e07
SK		 1697 ret = v4l_enable_media_source(vfd);
1698 if (ret)
1699 return ret;
4b1e2e4d
HV		 1700 p->type = (vfd->vfl_type == VFL_TYPE_RADIO) ?
1701 V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV;
1702 return ops->vidioc_s_tuner(file, fh, p);
1703}
1704
82b655bf
HV		 1705static int v4l_g_modulator(const struct v4l2_ioctl_ops *ops,
1706 struct file *file, void *fh, void *arg)
1707{
4124a3c4 1708 struct video_device *vfd = video_devdata(file);
82b655bf
HV		 1709 struct v4l2_modulator *p = arg;
1710 int err;
1711
4124a3c4
AP		 1712 if (vfd->vfl_type == VFL_TYPE_RADIO)
1713 p->type = V4L2_TUNER_RADIO;
1714
82b655bf
HV		 1715 err = ops->vidioc_g_modulator(file, fh, p);
1716 if (!err)
1717 p->capability |= V4L2_TUNER_CAP_FREQ_BANDS;
1718 return err;
1719}
1720
4124a3c4
AP		 1721static int v4l_s_modulator(const struct v4l2_ioctl_ops *ops,
1722 struct file *file, void *fh, void *arg)
1723{
1724 struct video_device *vfd = video_devdata(file);
1725 struct v4l2_modulator *p = arg;
1726
1727 if (vfd->vfl_type == VFL_TYPE_RADIO)
1728 p->type = V4L2_TUNER_RADIO;
1729
1730 return ops->vidioc_s_modulator(file, fh, p);
1731}
1732
4b1e2e4d
HV		 1733static int v4l_g_frequency(const struct v4l2_ioctl_ops *ops,
1734 struct file *file, void *fh, void *arg)
1735{
1736 struct video_device *vfd = video_devdata(file);
1737 struct v4l2_frequency *p = arg;
1738
84099a28 1739 if (vfd->vfl_type == VFL_TYPE_SDR)
f3c3ecec 1740 p->type = V4L2_TUNER_SDR;
84099a28
AP		 1741 else
1742 p->type = (vfd->vfl_type == VFL_TYPE_RADIO) ?
1743 V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV;
4b1e2e4d
HV		 1744 return ops->vidioc_g_frequency(file, fh, p);
1745}
1746
1747static int v4l_s_frequency(const struct v4l2_ioctl_ops *ops,
1748 struct file *file, void *fh, void *arg)
1749{
1750 struct video_device *vfd = video_devdata(file);
b530a447 1751 const struct v4l2_frequency *p = arg;
4b1e2e4d 1752 enum v4l2_tuner_type type;
77fa4e07 1753 int ret;
4b1e2e4d 1754
77fa4e07
SK		 1755 ret = v4l_enable_media_source(vfd);
1756 if (ret)
1757 return ret;
84099a28 1758 if (vfd->vfl_type == VFL_TYPE_SDR) {
f3c3ecec 1759 if (p->type != V4L2_TUNER_SDR && p->type != V4L2_TUNER_RF)
84099a28
AP		 1760 return -EINVAL;
1761 } else {
1762 type = (vfd->vfl_type == VFL_TYPE_RADIO) ?
1763 V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV;
1764 if (type != p->type)
1765 return -EINVAL;
1766 }
4b1e2e4d
HV		 1767 return ops->vidioc_s_frequency(file, fh, p);
1768}
1769
1770static int v4l_enumstd(const struct v4l2_ioctl_ops *ops,
1771 struct file *file, void *fh, void *arg)
1772{
1773 struct video_device *vfd = video_devdata(file);
1774 struct v4l2_standard *p = arg;
1775 v4l2_std_id id = vfd->tvnorms, curr_id = 0;
1776 unsigned int index = p->index, i, j = 0;
1777 const char *descr = "";
1778
a5338190
HV		 1779 /* Return -ENODATA if the tvnorms for the current input
1780 or output is 0, meaning that it doesn't support this API. */
1781 if (id == 0)
1782 return -ENODATA;
1783
4b1e2e4d
HV		 1784 /* Return norm array in a canonical way */
1785 for (i = 0; i <= index && id; i++) {
1786 /* last std value in the standards array is 0, so this
1787 while always ends there since (id & 0) == 0. */
1788 while ((id & standards[j].std) != standards[j].std)
1789 j++;
1790 curr_id = standards[j].std;
1791 descr = standards[j].descr;
1792 j++;
1793 if (curr_id == 0)
1794 break;
1795 if (curr_id != V4L2_STD_PAL &&
1796 curr_id != V4L2_STD_SECAM &&
1797 curr_id != V4L2_STD_NTSC)
1798 id &= ~curr_id;
1799 }
1800 if (i <= index)
1801 return -EINVAL;
1802
1803 v4l2_video_std_construct(p, curr_id, descr);
1804 return 0;
1805}
1806
4b1e2e4d
HV		 1807static int v4l_s_std(const struct v4l2_ioctl_ops *ops,
1808 struct file *file, void *fh, void *arg)
1809{
1810 struct video_device *vfd = video_devdata(file);
314527ac 1811 v4l2_std_id id = *(v4l2_std_id *)arg, norm;
77fa4e07 1812 int ret;
4b1e2e4d 1813
77fa4e07
SK		 1814 ret = v4l_enable_media_source(vfd);
1815 if (ret)
1816 return ret;
314527ac 1817 norm = id & vfd->tvnorms;
4b1e2e4d
HV		 1818 if (vfd->tvnorms && !norm) /* Check if std is supported */
1819 return -EINVAL;
1820
1821 /* Calls the specific handler */
ca371575 1822 return ops->vidioc_s_std(file, fh, norm);
4b1e2e4d
HV		 1823}
1824
1825static int v4l_querystd(const struct v4l2_ioctl_ops *ops,
1826 struct file *file, void *fh, void *arg)
1827{
1828 struct video_device *vfd = video_devdata(file);
1829 v4l2_std_id *p = arg;
77fa4e07 1830 int ret;
4b1e2e4d 1831
77fa4e07
SK		 1832 ret = v4l_enable_media_source(vfd);
1833 if (ret)
1834 return ret;
4b1e2e4d 1835 /*
1a2c6866
HV		 1836 * If no signal is detected, then the driver should return
1837 * V4L2_STD_UNKNOWN. Otherwise it should return tvnorms with
1838 * any standards that do not apply removed.
1839 *
4b1e2e4d
HV		 1840 * This means that tuners, audio and video decoders can join
1841 * their efforts to improve the standards detection.
1842 */
1843 *p = vfd->tvnorms;
1844 return ops->vidioc_querystd(file, fh, arg);
1845}
1846
1847static int v4l_s_hw_freq_seek(const struct v4l2_ioctl_ops *ops,
1848 struct file *file, void *fh, void *arg)
1849{
1850 struct video_device *vfd = video_devdata(file);
1851 struct v4l2_hw_freq_seek *p = arg;
1852 enum v4l2_tuner_type type;
77fa4e07 1853 int ret;
4b1e2e4d 1854
77fa4e07
SK		 1855 ret = v4l_enable_media_source(vfd);
1856 if (ret)
1857 return ret;
84099a28
AP		 1858 /* s_hw_freq_seek is not supported for SDR for now */
1859 if (vfd->vfl_type == VFL_TYPE_SDR)
1860 return -EINVAL;
1861
4b1e2e4d
HV		 1862 type = (vfd->vfl_type == VFL_TYPE_RADIO) ?
1863 V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV;
1864 if (p->type != type)
1865 return -EINVAL;
1866 return ops->vidioc_s_hw_freq_seek(file, fh, p);
1867}
1868
737c097b
HV		 1869static int v4l_overlay(const struct v4l2_ioctl_ops *ops,
1870 struct file *file, void *fh, void *arg)
1871{
1872 return ops->vidioc_overlay(file, fh, *(unsigned int *)arg);
1873}
1874
eb3728ed
HV		 1875static int v4l_reqbufs(const struct v4l2_ioctl_ops *ops,
1876 struct file *file, void *fh, void *arg)
1877{
1878 struct v4l2_requestbuffers *p = arg;
4b20259f 1879 int ret = check_fmt(file, p->type);
eb3728ed
HV		 1880
1881 if (ret)
1882 return ret;
1883
633c98e5 1884 CLEAR_AFTER_FIELD(p, memory);
eb3728ed
HV		 1885
1886 return ops->vidioc_reqbufs(file, fh, p);
1887}
1888
1889static int v4l_querybuf(const struct v4l2_ioctl_ops *ops,
1890 struct file *file, void *fh, void *arg)
1891{
1892 struct v4l2_buffer *p = arg;
4b20259f 1893 int ret = check_fmt(file, p->type);
eb3728ed
HV		 1894
1895 return ret ? ret : ops->vidioc_querybuf(file, fh, p);
1896}
1897
1898static int v4l_qbuf(const struct v4l2_ioctl_ops *ops,
1899 struct file *file, void *fh, void *arg)
1900{
1901 struct v4l2_buffer *p = arg;
4b20259f 1902 int ret = check_fmt(file, p->type);
eb3728ed
HV		 1903
1904 return ret ? ret : ops->vidioc_qbuf(file, fh, p);
1905}
1906
1907static int v4l_dqbuf(const struct v4l2_ioctl_ops *ops,
1908 struct file *file, void *fh, void *arg)
1909{
1910 struct v4l2_buffer *p = arg;
4b20259f 1911 int ret = check_fmt(file, p->type);
eb3728ed
HV		 1912
1913 return ret ? ret : ops->vidioc_dqbuf(file, fh, p);
1914}
1915
1916static int v4l_create_bufs(const struct v4l2_ioctl_ops *ops,
1917 struct file *file, void *fh, void *arg)
1918{
1919 struct v4l2_create_buffers *create = arg;
4b20259f 1920 int ret = check_fmt(file, create->format.type);
eb3728ed 1921
d52e2381
LP		 1922 if (ret)
1923 return ret;
1924
5d351251
HV		 1925 CLEAR_AFTER_FIELD(create, format);
1926
d52e2381
LP		 1927 v4l_sanitize_format(&create->format);
1928
1929 ret = ops->vidioc_create_bufs(file, fh, create);
1930
1931 if (create->format.type == V4L2_BUF_TYPE_VIDEO_CAPTURE ||
1932 create->format.type == V4L2_BUF_TYPE_VIDEO_OUTPUT)
1933 create->format.fmt.pix.priv = V4L2_PIX_FMT_PRIV_MAGIC;
1934
1935 return ret;
eb3728ed
HV		 1936}
1937
1938static int v4l_prepare_buf(const struct v4l2_ioctl_ops *ops,
1939 struct file *file, void *fh, void *arg)
1940{
1941 struct v4l2_buffer *b = arg;
4b20259f 1942 int ret = check_fmt(file, b->type);
eb3728ed
HV		 1943
1944 return ret ? ret : ops->vidioc_prepare_buf(file, fh, b);
1945}
1946
1947static int v4l_g_parm(const struct v4l2_ioctl_ops *ops,
1948 struct file *file, void *fh, void *arg)
1949{
eb3728ed
HV		 1950 struct v4l2_streamparm *p = arg;
1951 v4l2_std_id std;
4b20259f 1952 int ret = check_fmt(file, p->type);
eb3728ed
HV		 1953
1954 if (ret)
1955 return ret;
1956 if (ops->vidioc_g_parm)
1957 return ops->vidioc_g_parm(file, fh, p);
eb3728ed
HV		 1958 if (p->type != V4L2_BUF_TYPE_VIDEO_CAPTURE &&
1959 p->type != V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE)
1960 return -EINVAL;
1961 p->parm.capture.readbuffers = 2;
ca371575 1962 ret = ops->vidioc_g_std(file, fh, &std);
eb3728ed 1963 if (ret == 0)
ca371575 1964 v4l2_video_std_frame_period(std, &p->parm.capture.timeperframe);
eb3728ed
HV		 1965 return ret;
1966}
1967
1968static int v4l_s_parm(const struct v4l2_ioctl_ops *ops,
1969 struct file *file, void *fh, void *arg)
1970{
1971 struct v4l2_streamparm *p = arg;
4b20259f 1972 int ret = check_fmt(file, p->type);
eb3728ed
HV		 1973
1974 return ret ? ret : ops->vidioc_s_parm(file, fh, p);
1975}
1976
efbceecd
HV		 1977static int v4l_queryctrl(const struct v4l2_ioctl_ops *ops,
1978 struct file *file, void *fh, void *arg)
1979{
1980 struct video_device *vfd = video_devdata(file);
1981 struct v4l2_queryctrl *p = arg;
7a3ed2d9
HV		 1982 struct v4l2_fh *vfh =
1983 test_bit(V4L2_FL_USES_V4L2_FH, &vfd->flags) ? fh : NULL;
efbceecd
HV		 1984
1985 if (vfh && vfh->ctrl_handler)
1986 return v4l2_queryctrl(vfh->ctrl_handler, p);
1987 if (vfd->ctrl_handler)
1988 return v4l2_queryctrl(vfd->ctrl_handler, p);
1989 if (ops->vidioc_queryctrl)
1990 return ops->vidioc_queryctrl(file, fh, p);
1991 return -ENOTTY;
1992}
1993
e6bee368
HV		 1994static int v4l_query_ext_ctrl(const struct v4l2_ioctl_ops *ops,
1995 struct file *file, void *fh, void *arg)
1996{
1997 struct video_device *vfd = video_devdata(file);
1998 struct v4l2_query_ext_ctrl *p = arg;
1999 struct v4l2_fh *vfh =
2000 test_bit(V4L2_FL_USES_V4L2_FH, &vfd->flags) ? fh : NULL;
2001
2002 if (vfh && vfh->ctrl_handler)
2003 return v4l2_query_ext_ctrl(vfh->ctrl_handler, p);
2004 if (vfd->ctrl_handler)
2005 return v4l2_query_ext_ctrl(vfd->ctrl_handler, p);
2006 if (ops->vidioc_query_ext_ctrl)
2007 return ops->vidioc_query_ext_ctrl(file, fh, p);
2008 return -ENOTTY;
2009}
2010
efbceecd
HV		 2011static int v4l_querymenu(const struct v4l2_ioctl_ops *ops,
2012 struct file *file, void *fh, void *arg)
2013{
2014 struct video_device *vfd = video_devdata(file);
2015 struct v4l2_querymenu *p = arg;
7a3ed2d9
HV		 2016 struct v4l2_fh *vfh =
2017 test_bit(V4L2_FL_USES_V4L2_FH, &vfd->flags) ? fh : NULL;
efbceecd
HV		 2018
2019 if (vfh && vfh->ctrl_handler)
2020 return v4l2_querymenu(vfh->ctrl_handler, p);
2021 if (vfd->ctrl_handler)
2022 return v4l2_querymenu(vfd->ctrl_handler, p);
2023 if (ops->vidioc_querymenu)
2024 return ops->vidioc_querymenu(file, fh, p);
2025 return -ENOTTY;
2026}
2027
2028static int v4l_g_ctrl(const struct v4l2_ioctl_ops *ops,
2029 struct file *file, void *fh, void *arg)
2030{
2031 struct video_device *vfd = video_devdata(file);
2032 struct v4l2_control *p = arg;
7a3ed2d9
HV		 2033 struct v4l2_fh *vfh =
2034 test_bit(V4L2_FL_USES_V4L2_FH, &vfd->flags) ? fh : NULL;
efbceecd
HV		 2035 struct v4l2_ext_controls ctrls;
2036 struct v4l2_ext_control ctrl;
2037
2038 if (vfh && vfh->ctrl_handler)
2039 return v4l2_g_ctrl(vfh->ctrl_handler, p);
2040 if (vfd->ctrl_handler)
2041 return v4l2_g_ctrl(vfd->ctrl_handler, p);
2042 if (ops->vidioc_g_ctrl)
2043 return ops->vidioc_g_ctrl(file, fh, p);
2044 if (ops->vidioc_g_ext_ctrls == NULL)
2045 return -ENOTTY;
2046
0f8017be 2047 ctrls.which = V4L2_CTRL_ID2WHICH(p->id);
efbceecd
HV		 2048 ctrls.count = 1;
2049 ctrls.controls = &ctrl;
2050 ctrl.id = p->id;
2051 ctrl.value = p->value;
2052 if (check_ext_ctrls(&ctrls, 1)) {
2053 int ret = ops->vidioc_g_ext_ctrls(file, fh, &ctrls);
2054
2055 if (ret == 0)
2056 p->value = ctrl.value;
2057 return ret;
2058 }
2059 return -EINVAL;
2060}
2061
2062static int v4l_s_ctrl(const struct v4l2_ioctl_ops *ops,
2063 struct file *file, void *fh, void *arg)
2064{
2065 struct video_device *vfd = video_devdata(file);
2066 struct v4l2_control *p = arg;
7a3ed2d9
HV		 2067 struct v4l2_fh *vfh =
2068 test_bit(V4L2_FL_USES_V4L2_FH, &vfd->flags) ? fh : NULL;
efbceecd
HV		 2069 struct v4l2_ext_controls ctrls;
2070 struct v4l2_ext_control ctrl;
2071
2072 if (vfh && vfh->ctrl_handler)
2073 return v4l2_s_ctrl(vfh, vfh->ctrl_handler, p);
2074 if (vfd->ctrl_handler)
2075 return v4l2_s_ctrl(NULL, vfd->ctrl_handler, p);
2076 if (ops->vidioc_s_ctrl)
2077 return ops->vidioc_s_ctrl(file, fh, p);
2078 if (ops->vidioc_s_ext_ctrls == NULL)
2079 return -ENOTTY;
2080
0f8017be 2081 ctrls.which = V4L2_CTRL_ID2WHICH(p->id);
efbceecd
HV		 2082 ctrls.count = 1;
2083 ctrls.controls = &ctrl;
2084 ctrl.id = p->id;
2085 ctrl.value = p->value;
2086 if (check_ext_ctrls(&ctrls, 1))
2087 return ops->vidioc_s_ext_ctrls(file, fh, &ctrls);
2088 return -EINVAL;
2089}
2090
2091static int v4l_g_ext_ctrls(const struct v4l2_ioctl_ops *ops,
2092 struct file *file, void *fh, void *arg)
2093{
2094 struct video_device *vfd = video_devdata(file);
2095 struct v4l2_ext_controls *p = arg;
7a3ed2d9
HV		 2096 struct v4l2_fh *vfh =
2097 test_bit(V4L2_FL_USES_V4L2_FH, &vfd->flags) ? fh : NULL;
efbceecd
HV		 2098
2099 p->error_idx = p->count;
2100 if (vfh && vfh->ctrl_handler)
2101 return v4l2_g_ext_ctrls(vfh->ctrl_handler, p);
2102 if (vfd->ctrl_handler)
2103 return v4l2_g_ext_ctrls(vfd->ctrl_handler, p);
2104 if (ops->vidioc_g_ext_ctrls == NULL)
2105 return -ENOTTY;
2106 return check_ext_ctrls(p, 0) ? ops->vidioc_g_ext_ctrls(file, fh, p) :
2107 -EINVAL;
2108}
2109
2110static int v4l_s_ext_ctrls(const struct v4l2_ioctl_ops *ops,
2111 struct file *file, void *fh, void *arg)
2112{
2113 struct video_device *vfd = video_devdata(file);
2114 struct v4l2_ext_controls *p = arg;
7a3ed2d9
HV		 2115 struct v4l2_fh *vfh =
2116 test_bit(V4L2_FL_USES_V4L2_FH, &vfd->flags) ? fh : NULL;
efbceecd
HV		 2117
2118 p->error_idx = p->count;
2119 if (vfh && vfh->ctrl_handler)
2120 return v4l2_s_ext_ctrls(vfh, vfh->ctrl_handler, p);
2121 if (vfd->ctrl_handler)
2122 return v4l2_s_ext_ctrls(NULL, vfd->ctrl_handler, p);
2123 if (ops->vidioc_s_ext_ctrls == NULL)
2124 return -ENOTTY;
2125 return check_ext_ctrls(p, 0) ? ops->vidioc_s_ext_ctrls(file, fh, p) :
2126 -EINVAL;
2127}
2128
2129static int v4l_try_ext_ctrls(const struct v4l2_ioctl_ops *ops,
2130 struct file *file, void *fh, void *arg)
2131{
2132 struct video_device *vfd = video_devdata(file);
2133 struct v4l2_ext_controls *p = arg;
7a3ed2d9
HV		 2134 struct v4l2_fh *vfh =
2135 test_bit(V4L2_FL_USES_V4L2_FH, &vfd->flags) ? fh : NULL;
efbceecd
HV		 2136
2137 p->error_idx = p->count;
2138 if (vfh && vfh->ctrl_handler)
2139 return v4l2_try_ext_ctrls(vfh->ctrl_handler, p);
2140 if (vfd->ctrl_handler)
2141 return v4l2_try_ext_ctrls(vfd->ctrl_handler, p);
2142 if (ops->vidioc_try_ext_ctrls == NULL)
2143 return -ENOTTY;
2144 return check_ext_ctrls(p, 0) ? ops->vidioc_try_ext_ctrls(file, fh, p) :
2145 -EINVAL;
2146}
2147
eaec420f
HV		 2148/*
2149 * The selection API specified originally that the _MPLANE buffer types
2150 * shouldn't be used. The reasons for this are lost in the mists of time
2151 * (or just really crappy memories). Regardless, this is really annoying
2152 * for userspace. So to keep things simple we map _MPLANE buffer types
2153 * to their 'regular' counterparts before calling the driver. And we
2154 * restore it afterwards. This way applications can use either buffer
2155 * type and drivers don't need to check for both.
2156 */
2157static int v4l_g_selection(const struct v4l2_ioctl_ops *ops,
2158 struct file *file, void *fh, void *arg)
2159{
2160 struct v4l2_selection *p = arg;
2161 u32 old_type = p->type;
2162 int ret;
2163
2164 if (p->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE)
2165 p->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
2166 else if (p->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE)
2167 p->type = V4L2_BUF_TYPE_VIDEO_OUTPUT;
2168 ret = ops->vidioc_g_selection(file, fh, p);
2169 p->type = old_type;
2170 return ret;
2171}
2172
2173static int v4l_s_selection(const struct v4l2_ioctl_ops *ops,
2174 struct file *file, void *fh, void *arg)
2175{
2176 struct v4l2_selection *p = arg;
2177 u32 old_type = p->type;
2178 int ret;
2179
2180 if (p->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE)
2181 p->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
2182 else if (p->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE)
2183 p->type = V4L2_BUF_TYPE_VIDEO_OUTPUT;
2184 ret = ops->vidioc_s_selection(file, fh, p);
2185 p->type = old_type;
2186 return ret;
2187}
2188
d84f2d94
HV		 2189static int v4l_g_crop(const struct v4l2_ioctl_ops *ops,
2190 struct file *file, void *fh, void *arg)
2191{
2192 struct v4l2_crop *p = arg;
2193 struct v4l2_selection s = {
2194 .type = p->type,
2195 };
2196 int ret;
2197
2198 if (ops->vidioc_g_crop)
2199 return ops->vidioc_g_crop(file, fh, p);
2200 /* simulate capture crop using selection api */
2201
2202 /* crop means compose for output devices */
2203 if (V4L2_TYPE_IS_OUTPUT(p->type))
2204 s.target = V4L2_SEL_TGT_COMPOSE_ACTIVE;
2205 else
2206 s.target = V4L2_SEL_TGT_CROP_ACTIVE;
2207
eaec420f 2208 ret = v4l_g_selection(ops, file, fh, &s);
d84f2d94
HV		 2209
2210 /* copying results to old structure on success */
2211 if (!ret)
2212 p->c = s.r;
2213 return ret;
2214}
2215
2216static int v4l_s_crop(const struct v4l2_ioctl_ops *ops,
2217 struct file *file, void *fh, void *arg)
2218{
2219 struct v4l2_crop *p = arg;
2220 struct v4l2_selection s = {
2221 .type = p->type,
2222 .r = p->c,
2223 };
2224
2225 if (ops->vidioc_s_crop)
2226 return ops->vidioc_s_crop(file, fh, p);
2227 /* simulate capture crop using selection api */
2228
2229 /* crop means compose for output devices */
2230 if (V4L2_TYPE_IS_OUTPUT(p->type))
2231 s.target = V4L2_SEL_TGT_COMPOSE_ACTIVE;
2232 else
2233 s.target = V4L2_SEL_TGT_CROP_ACTIVE;
2234
eaec420f 2235 return v4l_s_selection(ops, file, fh, &s);
d84f2d94
HV		 2236}
2237
2238static int v4l_cropcap(const struct v4l2_ioctl_ops *ops,
2239 struct file *file, void *fh, void *arg)
2240{
2241 struct v4l2_cropcap *p = arg;
95dd7b7e
HV		 2242 struct v4l2_selection s = { .type = p->type };
2243 int ret = 0;
d84f2d94 2244
95dd7b7e
HV		 2245 /* setting trivial pixelaspect */
2246 p->pixelaspect.numerator = 1;
2247 p->pixelaspect.denominator = 1;
d84f2d94 2248
95dd7b7e
HV		 2249 /*
2250 * The determine_valid_ioctls() call already should ensure
2251 * that this can never happen, but just in case...
2252 */
1ca830b1 2253 if (WARN_ON(!ops->vidioc_cropcap && !ops->vidioc_g_selection))
95dd7b7e 2254 return -ENOTTY;
d84f2d94 2255
95dd7b7e
HV		 2256 if (ops->vidioc_cropcap)
2257 ret = ops->vidioc_cropcap(file, fh, p);
d84f2d94 2258
95dd7b7e
HV		 2259 if (!ops->vidioc_g_selection)
2260 return ret;
d84f2d94 2261
95dd7b7e
HV		 2262 /*
2263 * Ignore ENOTTY or ENOIOCTLCMD error returns, just use the
2264 * square pixel aspect ratio in that case.
2265 */
2266 if (ret && ret != -ENOTTY && ret != -ENOIOCTLCMD)
2267 return ret;
d84f2d94 2268
95dd7b7e 2269 /* Use g_selection() to fill in the bounds and defrect rectangles */
9409945c 2270
95dd7b7e
HV		 2271 /* obtaining bounds */
2272 if (V4L2_TYPE_IS_OUTPUT(p->type))
2273 s.target = V4L2_SEL_TGT_COMPOSE_BOUNDS;
2274 else
2275 s.target = V4L2_SEL_TGT_CROP_BOUNDS;
2276
eaec420f 2277 ret = v4l_g_selection(ops, file, fh, &s);
95dd7b7e
HV		 2278 if (ret)
2279 return ret;
2280 p->bounds = s.r;
2281
2282 /* obtaining defrect */
2283 if (V4L2_TYPE_IS_OUTPUT(p->type))
2284 s.target = V4L2_SEL_TGT_COMPOSE_DEFAULT;
2285 else
2286 s.target = V4L2_SEL_TGT_CROP_DEFAULT;
2287
eaec420f 2288 ret = v4l_g_selection(ops, file, fh, &s);
95dd7b7e
HV		 2289 if (ret)
2290 return ret;
2291 p->defrect = s.r;
9409945c 2292
d84f2d94
HV		 2293 return 0;
2294}
2295
f16f77b0
HV		 2296static int v4l_log_status(const struct v4l2_ioctl_ops *ops,
2297 struct file *file, void *fh, void *arg)
2298{
2299 struct video_device *vfd = video_devdata(file);
2300 int ret;
2301
2302 if (vfd->v4l2_dev)
2303 pr_info("%s: ================= START STATUS =================\n",
2304 vfd->v4l2_dev->name);
2305 ret = ops->vidioc_log_status(file, fh);
2306 if (vfd->v4l2_dev)
2307 pr_info("%s: ================== END STATUS ==================\n",
2308 vfd->v4l2_dev->name);
2309 return ret;
2310}
2311
2312static int v4l_dbg_g_register(const struct v4l2_ioctl_ops *ops,
2313 struct file *file, void *fh, void *arg)
2314{
2315#ifdef CONFIG_VIDEO_ADV_DEBUG
2316 struct v4l2_dbg_register *p = arg;
79b0c640
HV		 2317 struct video_device *vfd = video_devdata(file);
2318 struct v4l2_subdev *sd;
2319 int idx = 0;
f16f77b0
HV		 2320
2321 if (!capable(CAP_SYS_ADMIN))
2322 return -EPERM;
3eef2510 2323 if (p->match.type == V4L2_CHIP_MATCH_SUBDEV) {
79b0c640
HV		 2324 if (vfd->v4l2_dev == NULL)
2325 return -EINVAL;
3eef2510
HV		 2326 v4l2_device_for_each_subdev(sd, vfd->v4l2_dev)
2327 if (p->match.addr == idx++)
79b0c640 2328 return v4l2_subdev_call(sd, core, g_register, p);
79b0c640
HV		 2329 return -EINVAL;
2330 }
191b79b0
HV		 2331 if (ops->vidioc_g_register && p->match.type == V4L2_CHIP_MATCH_BRIDGE &&
2332 (ops->vidioc_g_chip_info || p->match.addr == 0))
79b0c640
HV		 2333 return ops->vidioc_g_register(file, fh, p);
2334 return -EINVAL;
f16f77b0
HV		 2335#else
2336 return -ENOTTY;
2337#endif
2338}
2339
2340static int v4l_dbg_s_register(const struct v4l2_ioctl_ops *ops,
2341 struct file *file, void *fh, void *arg)
2342{
2343#ifdef CONFIG_VIDEO_ADV_DEBUG
977ba3b1 2344 const struct v4l2_dbg_register *p = arg;
79b0c640
HV		 2345 struct video_device *vfd = video_devdata(file);
2346 struct v4l2_subdev *sd;
2347 int idx = 0;
f16f77b0
HV		 2348
2349 if (!capable(CAP_SYS_ADMIN))
2350 return -EPERM;
3eef2510 2351 if (p->match.type == V4L2_CHIP_MATCH_SUBDEV) {
79b0c640
HV		 2352 if (vfd->v4l2_dev == NULL)
2353 return -EINVAL;
3eef2510
HV		 2354 v4l2_device_for_each_subdev(sd, vfd->v4l2_dev)
2355 if (p->match.addr == idx++)
79b0c640 2356 return v4l2_subdev_call(sd, core, s_register, p);
79b0c640
HV		 2357 return -EINVAL;
2358 }
191b79b0
HV		 2359 if (ops->vidioc_s_register && p->match.type == V4L2_CHIP_MATCH_BRIDGE &&
2360 (ops->vidioc_g_chip_info || p->match.addr == 0))
79b0c640
HV		 2361 return ops->vidioc_s_register(file, fh, p);
2362 return -EINVAL;
f16f77b0
HV		 2363#else
2364 return -ENOTTY;
2365#endif
2366}
2367
96b03d2a 2368static int v4l_dbg_g_chip_info(const struct v4l2_ioctl_ops *ops,
79b0c640
HV		 2369 struct file *file, void *fh, void *arg)
2370{
cd634f1b 2371#ifdef CONFIG_VIDEO_ADV_DEBUG
79b0c640 2372 struct video_device *vfd = video_devdata(file);
96b03d2a 2373 struct v4l2_dbg_chip_info *p = arg;
79b0c640
HV		 2374 struct v4l2_subdev *sd;
2375 int idx = 0;
2376
2377 switch (p->match.type) {
2378 case V4L2_CHIP_MATCH_BRIDGE:
79b0c640
HV		 2379 if (ops->vidioc_s_register)
2380 p->flags |= V4L2_CHIP_FL_WRITABLE;
2381 if (ops->vidioc_g_register)
2382 p->flags |= V4L2_CHIP_FL_READABLE;
1c1d86a1 2383 strlcpy(p->name, vfd->v4l2_dev->name, sizeof(p->name));
96b03d2a
HV		 2384 if (ops->vidioc_g_chip_info)
2385 return ops->vidioc_g_chip_info(file, fh, arg);
0f0fe4b9
HV		 2386 if (p->match.addr)
2387 return -EINVAL;
79b0c640
HV		 2388 return 0;
2389
3eef2510 2390 case V4L2_CHIP_MATCH_SUBDEV:
79b0c640
HV		 2391 if (vfd->v4l2_dev == NULL)
2392 break;
2393 v4l2_device_for_each_subdev(sd, vfd->v4l2_dev) {
3eef2510
HV		 2394 if (p->match.addr != idx++)
2395 continue;
2396 if (sd->ops->core && sd->ops->core->s_register)
2397 p->flags |= V4L2_CHIP_FL_WRITABLE;
2398 if (sd->ops->core && sd->ops->core->g_register)
2399 p->flags |= V4L2_CHIP_FL_READABLE;
2400 strlcpy(p->name, sd->name, sizeof(p->name));
2401 return 0;
79b0c640
HV		 2402 }
2403 break;
2404 }
2405 return -EINVAL;
cd634f1b
HV		 2406#else
2407 return -ENOTTY;
2408#endif
79b0c640
HV		 2409}
2410
458aa4a6
HV		 2411static int v4l_dqevent(const struct v4l2_ioctl_ops *ops,
2412 struct file *file, void *fh, void *arg)
2413{
2414 return v4l2_event_dequeue(fh, arg, file->f_flags & O_NONBLOCK);
2415}
2416
2417static int v4l_subscribe_event(const struct v4l2_ioctl_ops *ops,
2418 struct file *file, void *fh, void *arg)
2419{
2420 return ops->vidioc_subscribe_event(fh, arg);
2421}
2422
2423static int v4l_unsubscribe_event(const struct v4l2_ioctl_ops *ops,
2424 struct file *file, void *fh, void *arg)
2425{
2426 return ops->vidioc_unsubscribe_event(fh, arg);
2427}
2428
2429static int v4l_g_sliced_vbi_cap(const struct v4l2_ioctl_ops *ops,
2430 struct file *file, void *fh, void *arg)
2431{
2432 struct v4l2_sliced_vbi_cap *p = arg;
4b20259f
HV		 2433 int ret = check_fmt(file, p->type);
2434
2435 if (ret)
2436 return ret;
458aa4a6
HV		 2437
2438 /* Clear up to type, everything after type is zeroed already */
2439 memset(p, 0, offsetof(struct v4l2_sliced_vbi_cap, type));
2440
2441 return ops->vidioc_g_sliced_vbi_cap(file, fh, p);
2442}
2443
82b655bf
HV		 2444static int v4l_enum_freq_bands(const struct v4l2_ioctl_ops *ops,
2445 struct file *file, void *fh, void *arg)
2446{
2447 struct video_device *vfd = video_devdata(file);
2448 struct v4l2_frequency_band *p = arg;
2449 enum v4l2_tuner_type type;
2450 int err;
2451
84099a28 2452 if (vfd->vfl_type == VFL_TYPE_SDR) {
f3c3ecec 2453 if (p->type != V4L2_TUNER_SDR && p->type != V4L2_TUNER_RF)
84099a28
AP		 2454 return -EINVAL;
2455 type = p->type;
2456 } else {
2457 type = (vfd->vfl_type == VFL_TYPE_RADIO) ?
2458 V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV;
2459 if (type != p->type)
2460 return -EINVAL;
2461 }
a7f404af
HV		 2462 if (ops->vidioc_enum_freq_bands) {
2463 err = ops->vidioc_enum_freq_bands(file, fh, p);
2464 if (err != -ENOTTY)
2465 return err;
2466 }
73f35418 2467 if (is_valid_ioctl(vfd, VIDIOC_G_TUNER)) {
82b655bf
HV		 2468 struct v4l2_tuner t = {
2469 .index = p->tuner,
2470 .type = type,
2471 };
2472
aa4d9b53
HV		 2473 if (p->index)
2474 return -EINVAL;
82b655bf
HV		 2475 err = ops->vidioc_g_tuner(file, fh, &t);
2476 if (err)
2477 return err;
2478 p->capability = t.capability | V4L2_TUNER_CAP_FREQ_BANDS;
2479 p->rangelow = t.rangelow;
2480 p->rangehigh = t.rangehigh;
2481 p->modulation = (type == V4L2_TUNER_RADIO) ?
2482 V4L2_BAND_MODULATION_FM : V4L2_BAND_MODULATION_VSB;
2483 return 0;
2484 }
73f35418 2485 if (is_valid_ioctl(vfd, VIDIOC_G_MODULATOR)) {
82b655bf
HV		 2486 struct v4l2_modulator m = {
2487 .index = p->tuner,
2488 };
2489
2490 if (type != V4L2_TUNER_RADIO)
2491 return -EINVAL;
aa4d9b53
HV		 2492 if (p->index)
2493 return -EINVAL;
82b655bf
HV		 2494 err = ops->vidioc_g_modulator(file, fh, &m);
2495 if (err)
2496 return err;
2497 p->capability = m.capability | V4L2_TUNER_CAP_FREQ_BANDS;
2498 p->rangelow = m.rangelow;
2499 p->rangehigh = m.rangehigh;
2500 p->modulation = (type == V4L2_TUNER_RADIO) ?
2501 V4L2_BAND_MODULATION_FM : V4L2_BAND_MODULATION_VSB;
2502 return 0;
2503 }
2504 return -ENOTTY;
2505}
2506
4839e6c2
HV		 2507struct v4l2_ioctl_info {
2508 unsigned int ioctl;
27cd2aba 2509 u32 flags;
4839e6c2 2510 const char * const name;
86748f35
HV		 2511 union {
2512 u32 offset;
2513 int (*func)(const struct v4l2_ioctl_ops *ops,
2514 struct file *file, void *fh, void *p);
26ddcbcc 2515 } u;
86748f35 2516 void (*debug)(const void *arg, bool write_only);
4839e6c2
HV		 2517};
2518
2519/* This control needs a priority check */
043f77ed 2520#define INFO_FL_PRIO (1 << 0)
4839e6c2 2521/* This control can be valid if the filehandle passes a control handler. */
043f77ed 2522#define INFO_FL_CTRL (1 << 1)
86748f35 2523/* This is a standard ioctl, no need for special code */
043f77ed 2524#define INFO_FL_STD (1 << 2)
86748f35 2525/* This is ioctl has its own function */
043f77ed 2526#define INFO_FL_FUNC (1 << 3)
5a5adf6b 2527/* Queuing ioctl */
043f77ed
HV		 2528#define INFO_FL_QUEUE (1 << 4)
2529/* Always copy back result, even on error */
2530#define INFO_FL_ALWAYS_COPY (1 << 5)
27cd2aba
HV		 2531/* Zero struct from after the field to the end */
2532#define INFO_FL_CLEAR(v4l2_struct, field) \
2533 ((offsetof(struct v4l2_struct, field) + \
2534 sizeof(((struct v4l2_struct *)0)->field)) << 16)
043f77ed 2535#define INFO_FL_CLEAR_MASK (_IOC_SIZEMASK << 16)
4839e6c2 2536
86748f35
HV		 2537#define IOCTL_INFO_STD(_ioctl, _vidioc, _debug, _flags) \
2538 [_IOC_NR(_ioctl)] = { \
2539 .ioctl = _ioctl, \
2540 .flags = _flags | INFO_FL_STD, \
2541 .name = #_ioctl, \
26ddcbcc 2542 .u.offset = offsetof(struct v4l2_ioctl_ops, _vidioc), \
86748f35
HV		 2543 .debug = _debug, \
2544 }
2545
2546#define IOCTL_INFO_FNC(_ioctl, _func, _debug, _flags) \
2547 [_IOC_NR(_ioctl)] = { \
2548 .ioctl = _ioctl, \
2549 .flags = _flags | INFO_FL_FUNC, \
2550 .name = #_ioctl, \
26ddcbcc 2551 .u.func = _func, \
86748f35
HV		 2552 .debug = _debug, \
2553 }
2554
4839e6c2 2555static struct v4l2_ioctl_info v4l2_ioctls[] = {
59076122 2556 IOCTL_INFO_FNC(VIDIOC_QUERYCAP, v4l_querycap, v4l_print_querycap, 0),
be6c64e4 2557 IOCTL_INFO_FNC(VIDIOC_ENUM_FMT, v4l_enum_fmt, v4l_print_fmtdesc, INFO_FL_CLEAR(v4l2_fmtdesc, type)),
e5ce558a 2558 IOCTL_INFO_FNC(VIDIOC_G_FMT, v4l_g_fmt, v4l_print_format, 0),
be6c64e4 2559 IOCTL_INFO_FNC(VIDIOC_S_FMT, v4l_s_fmt, v4l_print_format, INFO_FL_PRIO),
5a5adf6b
HV		 2560 IOCTL_INFO_FNC(VIDIOC_REQBUFS, v4l_reqbufs, v4l_print_requestbuffers, INFO_FL_PRIO | INFO_FL_QUEUE),
2561 IOCTL_INFO_FNC(VIDIOC_QUERYBUF, v4l_querybuf, v4l_print_buffer, INFO_FL_QUEUE | INFO_FL_CLEAR(v4l2_buffer, length)),
be6c64e4
HV		 2562 IOCTL_INFO_STD(VIDIOC_G_FBUF, vidioc_g_fbuf, v4l_print_framebuffer, 0),
2563 IOCTL_INFO_STD(VIDIOC_S_FBUF, vidioc_s_fbuf, v4l_print_framebuffer, INFO_FL_PRIO),
737c097b 2564 IOCTL_INFO_FNC(VIDIOC_OVERLAY, v4l_overlay, v4l_print_u32, INFO_FL_PRIO),
5a5adf6b 2565 IOCTL_INFO_FNC(VIDIOC_QBUF, v4l_qbuf, v4l_print_buffer, INFO_FL_QUEUE),
b799d09a 2566 IOCTL_INFO_STD(VIDIOC_EXPBUF, vidioc_expbuf, v4l_print_exportbuffer, INFO_FL_QUEUE | INFO_FL_CLEAR(v4l2_exportbuffer, flags)),
5a5adf6b
HV		 2567 IOCTL_INFO_FNC(VIDIOC_DQBUF, v4l_dqbuf, v4l_print_buffer, INFO_FL_QUEUE),
2568 IOCTL_INFO_FNC(VIDIOC_STREAMON, v4l_streamon, v4l_print_buftype, INFO_FL_PRIO | INFO_FL_QUEUE),
2569 IOCTL_INFO_FNC(VIDIOC_STREAMOFF, v4l_streamoff, v4l_print_buftype, INFO_FL_PRIO | INFO_FL_QUEUE),
eb3728ed
HV		 2570 IOCTL_INFO_FNC(VIDIOC_G_PARM, v4l_g_parm, v4l_print_streamparm, INFO_FL_CLEAR(v4l2_streamparm, type)),
2571 IOCTL_INFO_FNC(VIDIOC_S_PARM, v4l_s_parm, v4l_print_streamparm, INFO_FL_PRIO),
ca371575 2572 IOCTL_INFO_STD(VIDIOC_G_STD, vidioc_g_std, v4l_print_std, 0),
4b1e2e4d
HV		 2573 IOCTL_INFO_FNC(VIDIOC_S_STD, v4l_s_std, v4l_print_std, INFO_FL_PRIO),
2574 IOCTL_INFO_FNC(VIDIOC_ENUMSTD, v4l_enumstd, v4l_print_standard, INFO_FL_CLEAR(v4l2_standard, index)),
59076122 2575 IOCTL_INFO_FNC(VIDIOC_ENUMINPUT, v4l_enuminput, v4l_print_enuminput, INFO_FL_CLEAR(v4l2_input, index)),
efbceecd
HV		 2576 IOCTL_INFO_FNC(VIDIOC_G_CTRL, v4l_g_ctrl, v4l_print_control, INFO_FL_CTRL | INFO_FL_CLEAR(v4l2_control, id)),
2577 IOCTL_INFO_FNC(VIDIOC_S_CTRL, v4l_s_ctrl, v4l_print_control, INFO_FL_PRIO | INFO_FL_CTRL),
4b1e2e4d
HV		 2578 IOCTL_INFO_FNC(VIDIOC_G_TUNER, v4l_g_tuner, v4l_print_tuner, INFO_FL_CLEAR(v4l2_tuner, index)),
2579 IOCTL_INFO_FNC(VIDIOC_S_TUNER, v4l_s_tuner, v4l_print_tuner, INFO_FL_PRIO),
59076122
HV		 2580 IOCTL_INFO_STD(VIDIOC_G_AUDIO, vidioc_g_audio, v4l_print_audio, 0),
2581 IOCTL_INFO_STD(VIDIOC_S_AUDIO, vidioc_s_audio, v4l_print_audio, INFO_FL_PRIO),
efbceecd
HV		 2582 IOCTL_INFO_FNC(VIDIOC_QUERYCTRL, v4l_queryctrl, v4l_print_queryctrl, INFO_FL_CTRL | INFO_FL_CLEAR(v4l2_queryctrl, id)),
2583 IOCTL_INFO_FNC(VIDIOC_QUERYMENU, v4l_querymenu, v4l_print_querymenu, INFO_FL_CTRL | INFO_FL_CLEAR(v4l2_querymenu, index)),
59076122
HV		 2584 IOCTL_INFO_STD(VIDIOC_G_INPUT, vidioc_g_input, v4l_print_u32, 0),
2585 IOCTL_INFO_FNC(VIDIOC_S_INPUT, v4l_s_input, v4l_print_u32, INFO_FL_PRIO),
043f77ed
HV		 2586 IOCTL_INFO_STD(VIDIOC_G_EDID, vidioc_g_edid, v4l_print_edid, INFO_FL_ALWAYS_COPY),
2587 IOCTL_INFO_STD(VIDIOC_S_EDID, vidioc_s_edid, v4l_print_edid, INFO_FL_PRIO | INFO_FL_ALWAYS_COPY),
59076122
HV		 2588 IOCTL_INFO_STD(VIDIOC_G_OUTPUT, vidioc_g_output, v4l_print_u32, 0),
2589 IOCTL_INFO_FNC(VIDIOC_S_OUTPUT, v4l_s_output, v4l_print_u32, INFO_FL_PRIO),
2590 IOCTL_INFO_FNC(VIDIOC_ENUMOUTPUT, v4l_enumoutput, v4l_print_enumoutput, INFO_FL_CLEAR(v4l2_output, index)),
2591 IOCTL_INFO_STD(VIDIOC_G_AUDOUT, vidioc_g_audout, v4l_print_audioout, 0),
2592 IOCTL_INFO_STD(VIDIOC_S_AUDOUT, vidioc_s_audout, v4l_print_audioout, INFO_FL_PRIO),
82b655bf 2593 IOCTL_INFO_FNC(VIDIOC_G_MODULATOR, v4l_g_modulator, v4l_print_modulator, INFO_FL_CLEAR(v4l2_modulator, index)),
4124a3c4 2594 IOCTL_INFO_FNC(VIDIOC_S_MODULATOR, v4l_s_modulator, v4l_print_modulator, INFO_FL_PRIO),
4b1e2e4d
HV		 2595 IOCTL_INFO_FNC(VIDIOC_G_FREQUENCY, v4l_g_frequency, v4l_print_frequency, INFO_FL_CLEAR(v4l2_frequency, tuner)),
2596 IOCTL_INFO_FNC(VIDIOC_S_FREQUENCY, v4l_s_frequency, v4l_print_frequency, INFO_FL_PRIO),
d84f2d94
HV		 2597 IOCTL_INFO_FNC(VIDIOC_CROPCAP, v4l_cropcap, v4l_print_cropcap, INFO_FL_CLEAR(v4l2_cropcap, type)),
2598 IOCTL_INFO_FNC(VIDIOC_G_CROP, v4l_g_crop, v4l_print_crop, INFO_FL_CLEAR(v4l2_crop, type)),
2599 IOCTL_INFO_FNC(VIDIOC_S_CROP, v4l_s_crop, v4l_print_crop, INFO_FL_PRIO),
eaec420f
HV		 2600 IOCTL_INFO_FNC(VIDIOC_G_SELECTION, v4l_g_selection, v4l_print_selection, INFO_FL_CLEAR(v4l2_selection, r)),
2601 IOCTL_INFO_FNC(VIDIOC_S_SELECTION, v4l_s_selection, v4l_print_selection, INFO_FL_PRIO | INFO_FL_CLEAR(v4l2_selection, r)),
d806f2df
HV		 2602 IOCTL_INFO_STD(VIDIOC_G_JPEGCOMP, vidioc_g_jpegcomp, v4l_print_jpegcompression, 0),
2603 IOCTL_INFO_STD(VIDIOC_S_JPEGCOMP, vidioc_s_jpegcomp, v4l_print_jpegcompression, INFO_FL_PRIO),
4b1e2e4d 2604 IOCTL_INFO_FNC(VIDIOC_QUERYSTD, v4l_querystd, v4l_print_std, 0),
be6c64e4 2605 IOCTL_INFO_FNC(VIDIOC_TRY_FMT, v4l_try_fmt, v4l_print_format, 0),
59076122
HV		 2606 IOCTL_INFO_STD(VIDIOC_ENUMAUDIO, vidioc_enumaudio, v4l_print_audio, INFO_FL_CLEAR(v4l2_audio, index)),
2607 IOCTL_INFO_STD(VIDIOC_ENUMAUDOUT, vidioc_enumaudout, v4l_print_audioout, INFO_FL_CLEAR(v4l2_audioout, index)),
d0547cba
HV		 2608 IOCTL_INFO_FNC(VIDIOC_G_PRIORITY, v4l_g_priority, v4l_print_u32, 0),
2609 IOCTL_INFO_FNC(VIDIOC_S_PRIORITY, v4l_s_priority, v4l_print_u32, INFO_FL_PRIO),
458aa4a6 2610 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 2611 IOCTL_INFO_FNC(VIDIOC_LOG_STATUS, v4l_log_status, v4l_print_newline, 0),
efbceecd
HV		 2612 IOCTL_INFO_FNC(VIDIOC_G_EXT_CTRLS, v4l_g_ext_ctrls, v4l_print_ext_controls, INFO_FL_CTRL),
2613 IOCTL_INFO_FNC(VIDIOC_S_EXT_CTRLS, v4l_s_ext_ctrls, v4l_print_ext_controls, INFO_FL_PRIO | INFO_FL_CTRL),
9bc31633 2614 IOCTL_INFO_FNC(VIDIOC_TRY_EXT_CTRLS, v4l_try_ext_ctrls, v4l_print_ext_controls, INFO_FL_CTRL),
458aa4a6
HV		 2615 IOCTL_INFO_STD(VIDIOC_ENUM_FRAMESIZES, vidioc_enum_framesizes, v4l_print_frmsizeenum, INFO_FL_CLEAR(v4l2_frmsizeenum, pixel_format)),
2616 IOCTL_INFO_STD(VIDIOC_ENUM_FRAMEINTERVALS, vidioc_enum_frameintervals, v4l_print_frmivalenum, INFO_FL_CLEAR(v4l2_frmivalenum, height)),
d806f2df
HV		 2617 IOCTL_INFO_STD(VIDIOC_G_ENC_INDEX, vidioc_g_enc_index, v4l_print_enc_idx, 0),
2618 IOCTL_INFO_STD(VIDIOC_ENCODER_CMD, vidioc_encoder_cmd, v4l_print_encoder_cmd, INFO_FL_PRIO | INFO_FL_CLEAR(v4l2_encoder_cmd, flags)),
2619 IOCTL_INFO_STD(VIDIOC_TRY_ENCODER_CMD, vidioc_try_encoder_cmd, v4l_print_encoder_cmd, INFO_FL_CLEAR(v4l2_encoder_cmd, flags)),
2620 IOCTL_INFO_STD(VIDIOC_DECODER_CMD, vidioc_decoder_cmd, v4l_print_decoder_cmd, INFO_FL_PRIO),
2621 IOCTL_INFO_STD(VIDIOC_TRY_DECODER_CMD, vidioc_try_decoder_cmd, v4l_print_decoder_cmd, 0),
f16f77b0
HV		 2622 IOCTL_INFO_FNC(VIDIOC_DBG_S_REGISTER, v4l_dbg_s_register, v4l_print_dbg_register, 0),
2623 IOCTL_INFO_FNC(VIDIOC_DBG_G_REGISTER, v4l_dbg_g_register, v4l_print_dbg_register, 0),
4b1e2e4d 2624 IOCTL_INFO_FNC(VIDIOC_S_HW_FREQ_SEEK, v4l_s_hw_freq_seek, v4l_print_hw_freq_seek, INFO_FL_PRIO),
f932af80 2625 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 2626 IOCTL_INFO_STD(VIDIOC_G_DV_TIMINGS, vidioc_g_dv_timings, v4l_print_dv_timings, 0),
458aa4a6
HV		 2627 IOCTL_INFO_FNC(VIDIOC_DQEVENT, v4l_dqevent, v4l_print_event, 0),
2628 IOCTL_INFO_FNC(VIDIOC_SUBSCRIBE_EVENT, v4l_subscribe_event, v4l_print_event_subscription, 0),
2629 IOCTL_INFO_FNC(VIDIOC_UNSUBSCRIBE_EVENT, v4l_unsubscribe_event, v4l_print_event_subscription, 0),
5a5adf6b
HV		 2630 IOCTL_INFO_FNC(VIDIOC_CREATE_BUFS, v4l_create_bufs, v4l_print_create_buffers, INFO_FL_PRIO | INFO_FL_QUEUE),
2631 IOCTL_INFO_FNC(VIDIOC_PREPARE_BUF, v4l_prepare_buf, v4l_print_buffer, INFO_FL_QUEUE),
f932af80 2632 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 2633 IOCTL_INFO_STD(VIDIOC_QUERY_DV_TIMINGS, vidioc_query_dv_timings, v4l_print_dv_timings, INFO_FL_ALWAYS_COPY),
a1acb8f9 2634 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 2635 IOCTL_INFO_FNC(VIDIOC_ENUM_FREQ_BANDS, v4l_enum_freq_bands, v4l_print_freq_band, 0),
96b03d2a 2636 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 2637 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		 2638};
2639#define V4L2_IOCTLS ARRAY_SIZE(v4l2_ioctls)
2640
2641bool v4l2_is_known_ioctl(unsigned int cmd)
2642{
2643 if (_IOC_NR(cmd) >= V4L2_IOCTLS)
2644 return false;
2645 return v4l2_ioctls[_IOC_NR(cmd)].ioctl == cmd;
2646}
2647
5a5adf6b
HV		 2648struct mutex *v4l2_ioctl_get_lock(struct video_device *vdev, unsigned cmd)
2649{
2650 if (_IOC_NR(cmd) >= V4L2_IOCTLS)
2651 return vdev->lock;
2652 if (test_bit(_IOC_NR(cmd), vdev->disable_locking))
2653 return NULL;
2654 if (vdev->queue && vdev->queue->lock &&
2655 (v4l2_ioctls[_IOC_NR(cmd)].flags & INFO_FL_QUEUE))
2656 return vdev->queue->lock;
2657 return vdev->lock;
2658}
2659
4839e6c2
HV		 2660/* Common ioctl debug function. This function can be used by
2661 external ioctl messages as well as internal V4L ioctl */
4a085168 2662void v4l_printk_ioctl(const char *prefix, unsigned int cmd)
4839e6c2 2663{
86748f35 2664 const char *dir, *type;
4839e6c2 2665
4a085168
HV		 2666 if (prefix)
2667 printk(KERN_DEBUG "%s: ", prefix);
2668
4839e6c2
HV		 2669 switch (_IOC_TYPE(cmd)) {
2670 case 'd':
2671 type = "v4l2_int";
2672 break;
2673 case 'V':
2674 if (_IOC_NR(cmd) >= V4L2_IOCTLS) {
2675 type = "v4l2";
2676 break;
2677 }
86748f35 2678 pr_cont("%s", v4l2_ioctls[_IOC_NR(cmd)].name);
4839e6c2
HV		 2679 return;
2680 default:
2681 type = "unknown";
86748f35 2682 break;
4839e6c2
HV		 2683 }
2684
2685 switch (_IOC_DIR(cmd)) {
2686 case _IOC_NONE: dir = "--"; break;
2687 case _IOC_READ: dir = "r-"; break;
2688 case _IOC_WRITE: dir = "-w"; break;
2689 case _IOC_READ | _IOC_WRITE: dir = "rw"; break;
2690 default: dir = "*ERR*"; break;
2691 }
86748f35 2692 pr_cont("%s ioctl '%c', dir=%s, #%d (0x%08x)",
4839e6c2
HV		 2693 type, _IOC_TYPE(cmd), dir, _IOC_NR(cmd), cmd);
2694}
2695EXPORT_SYMBOL(v4l_printk_ioctl);
2696
069b7479 2697static long __video_do_ioctl(struct file *file,
35ea11ff
HV		 2698 unsigned int cmd, void *arg)
2699{
2700 struct video_device *vfd = video_devdata(file);
a399810c 2701 const struct v4l2_ioctl_ops *ops = vfd->ioctl_ops;
86748f35
HV		 2702 bool write_only = false;
2703 struct v4l2_ioctl_info default_info;
2704 const struct v4l2_ioctl_info *info;
d5fbf32f 2705 void *fh = file->private_data;
99cd47bc 2706 struct v4l2_fh *vfh = NULL;
17028cdb 2707 int dev_debug = vfd->dev_debug;
9190d191 2708 long ret = -ENOTTY;
35ea11ff 2709
6a717883 2710 if (ops == NULL) {
4a085168
HV		 2711 pr_warn("%s: has no ioctl_ops.\n",
2712 video_device_node_name(vfd));
9190d191 2713 return ret;
6a717883
HV		 2714 }
2715
b7284bb0 2716 if (test_bit(V4L2_FL_USES_V4L2_FH, &vfd->flags))
99cd47bc
HV		 2717 vfh = file->private_data;
2718
48ea0be0 2719 if (v4l2_is_known_ioctl(cmd)) {
86748f35 2720 info = &v4l2_ioctls[_IOC_NR(cmd)];
48ea0be0 2721
2e5e435f 2722 if (!test_bit(_IOC_NR(cmd), vfd->valid_ioctls) &&
48ea0be0 2723 !((info->flags & INFO_FL_CTRL) && vfh && vfh->ctrl_handler))
86748f35 2724 goto done;
4b902fec 2725
b7284bb0 2726 if (vfh && (info->flags & INFO_FL_PRIO)) {
4b902fec
HV		 2727 ret = v4l2_prio_check(vfd->prio, vfh->prio);
2728 if (ret)
86748f35 2729 goto done;
4b902fec 2730 }
86748f35
HV		 2731 } else {
2732 default_info.ioctl = cmd;
2733 default_info.flags = 0;
f18d8e07 2734 default_info.debug = v4l_print_default;
86748f35 2735 info = &default_info;
48ea0be0
HV		 2736 }
2737
86748f35 2738 write_only = _IOC_DIR(cmd) == _IOC_WRITE;
86748f35
HV		 2739 if (info->flags & INFO_FL_STD) {
2740 typedef int (*vidioc_op)(struct file *file, void *fh, void *p);
2741 const void *p = vfd->ioctl_ops;
26ddcbcc 2742 const vidioc_op *vidioc = p + info->u.offset;
86748f35
HV		 2743
2744 ret = (*vidioc)(file, fh, arg);
86748f35 2745 } else if (info->flags & INFO_FL_FUNC) {
26ddcbcc 2746 ret = info->u.func(ops, file, fh, arg);
f18d8e07
HV		 2747 } else if (!ops->vidioc_default) {
2748 ret = -ENOTTY;
2749 } else {
2750 ret = ops->vidioc_default(file, fh,
b7284bb0 2751 vfh ? v4l2_prio_check(vfd->prio, vfh->prio) >= 0 : 0,
f18d8e07 2752 cmd, arg);
48ea0be0 2753 }
99cd47bc 2754
86748f35 2755done:
17028cdb
HV		 2756 if (dev_debug & (V4L2_DEV_DEBUG_IOCTL | V4L2_DEV_DEBUG_IOCTL_ARG)) {
2757 if (!(dev_debug & V4L2_DEV_DEBUG_STREAMING) &&
2758 (cmd == VIDIOC_QBUF || cmd == VIDIOC_DQBUF))
2759 return ret;
2760
4a085168 2761 v4l_printk_ioctl(video_device_node_name(vfd), cmd);
86748f35 2762 if (ret < 0)
505d04bd 2763 pr_cont(": error %ld", ret);
17028cdb 2764 if (!(dev_debug & V4L2_DEV_DEBUG_IOCTL_ARG))
86748f35 2765 pr_cont("\n");
86748f35
HV		 2766 else if (_IOC_DIR(cmd) == _IOC_NONE)
2767 info->debug(arg, write_only);
2768 else {
2769 pr_cont(": ");
2770 info->debug(arg, write_only);
35ea11ff
HV		 2771 }
2772 }
2773
2774 return ret;
2775}
2776
d14e6d76 2777static int check_array_args(unsigned int cmd, void *parg, size_t *array_size,
ba2d35c1 2778 void __user **user_ptr, void ***kernel_ptr)
d14e6d76
PO		 2779{
2780 int ret = 0;
2781
2782 switch (cmd) {
96b1a702 2783 case VIDIOC_PREPARE_BUF:
d14e6d76
PO		 2784 case VIDIOC_QUERYBUF:
2785 case VIDIOC_QBUF:
2786 case VIDIOC_DQBUF: {
2787 struct v4l2_buffer *buf = parg;
2788
2789 if (V4L2_TYPE_IS_MULTIPLANAR(buf->type) && buf->length > 0) {
2790 if (buf->length > VIDEO_MAX_PLANES) {
2791 ret = -EINVAL;
2792 break;
2793 }
2794 *user_ptr = (void __user *)buf->m.planes;
ba2d35c1 2795 *kernel_ptr = (void **)&buf->m.planes;
d14e6d76
PO		 2796 *array_size = sizeof(struct v4l2_plane) * buf->length;
2797 ret = 1;
2798 }
2799 break;
2800 }
2801
dd519bb3
HV		 2802 case VIDIOC_G_EDID:
2803 case VIDIOC_S_EDID: {
2804 struct v4l2_edid *edid = parg;
ed45ce2c
HV		 2805
2806 if (edid->blocks) {
1b8b10cc
HV		 2807 if (edid->blocks > 256) {
2808 ret = -EINVAL;
2809 break;
2810 }
ed45ce2c 2811 *user_ptr = (void __user *)edid->edid;
ba2d35c1 2812 *kernel_ptr = (void **)&edid->edid;
ed45ce2c
HV		 2813 *array_size = edid->blocks * 128;
2814 ret = 1;
2815 }
2816 break;
2817 }
2818
d14e6d76
PO		 2819 case VIDIOC_S_EXT_CTRLS:
2820 case VIDIOC_G_EXT_CTRLS:
2821 case VIDIOC_TRY_EXT_CTRLS: {
2822 struct v4l2_ext_controls *ctrls = parg;
2823
2824 if (ctrls->count != 0) {
6c06108b
DC		 2825 if (ctrls->count > V4L2_CID_MAX_CTRLS) {
2826 ret = -EINVAL;
2827 break;
2828 }
d14e6d76 2829 *user_ptr = (void __user *)ctrls->controls;
ba2d35c1 2830 *kernel_ptr = (void **)&ctrls->controls;
d14e6d76
PO		 2831 *array_size = sizeof(struct v4l2_ext_control)
2832 * ctrls->count;
2833 ret = 1;
2834 }
2835 break;
2836 }
2837 }
2838
2839 return ret;
2840}
2841
fc0a8079
LP		 2842long
2843video_usercopy(struct file *file, unsigned int cmd, unsigned long arg,
2844 v4l2_kioctl func)
35ea11ff
HV		 2845{
2846 char sbuf[128];
2847 void *mbuf = NULL;
1d94aa36 2848 void *parg = (void *)arg;
069b7479 2849 long err = -EINVAL;
d14e6d76 2850 bool has_array_args;
043f77ed 2851 bool always_copy = false;
d14e6d76 2852 size_t array_size = 0;
35ea11ff 2853 void __user *user_ptr = NULL;
d14e6d76 2854 void **kernel_ptr = NULL;
35ea11ff 2855
35ea11ff 2856 /* Copy arguments into temp kernel buffer */
337f9d20 2857 if (_IOC_DIR(cmd) != _IOC_NONE) {
35ea11ff
HV		 2858 if (_IOC_SIZE(cmd) <= sizeof(sbuf)) {
2859 parg = sbuf;
2860 } else {
2861 /* too big to allocate from stack */
758d90e1 2862 mbuf = kvmalloc(_IOC_SIZE(cmd), GFP_KERNEL);
35ea11ff
HV		 2863 if (NULL == mbuf)
2864 return -ENOMEM;
2865 parg = mbuf;
2866 }
2867
2868 err = -EFAULT;
19c96e4b 2869 if (_IOC_DIR(cmd) & _IOC_WRITE) {
27cd2aba
HV		 2870 unsigned int n = _IOC_SIZE(cmd);
2871
2872 /*
2873 * In some cases, only a few fields are used as input,
2874 * i.e. when the app sets "index" and then the driver
2875 * fills in the rest of the structure for the thing
2876 * with that index. We only need to copy up the first
2877 * non-input field.
2878 */
2879 if (v4l2_is_known_ioctl(cmd)) {
2880 u32 flags = v4l2_ioctls[_IOC_NR(cmd)].flags;
043f77ed 2881
27cd2aba
HV		 2882 if (flags & INFO_FL_CLEAR_MASK)
2883 n = (flags & INFO_FL_CLEAR_MASK) >> 16;
043f77ed 2884 always_copy = flags & INFO_FL_ALWAYS_COPY;
27cd2aba 2885 }
19c96e4b
TP		 2886
2887 if (copy_from_user(parg, (void __user *)arg, n))
35ea11ff 2888 goto out;
19c96e4b
TP		 2889
2890 /* zero out anything we don't copy from userspace */
2891 if (n < _IOC_SIZE(cmd))
2892 memset((u8 *)parg + n, 0, _IOC_SIZE(cmd) - n);
337f9d20
TP		 2893 } else {
2894 /* read-only ioctl */
2895 memset(parg, 0, _IOC_SIZE(cmd));
19c96e4b 2896 }
35ea11ff
HV		 2897 }
2898
d14e6d76
PO		 2899 err = check_array_args(cmd, parg, &array_size, &user_ptr, &kernel_ptr);
2900 if (err < 0)
2901 goto out;
2902 has_array_args = err;
35ea11ff 2903
d14e6d76
PO		 2904 if (has_array_args) {
2905 /*
2906 * When adding new types of array args, make sure that the
2907 * parent argument to ioctl (which contains the pointer to the
2908 * array) fits into sbuf (so that mbuf will still remain
2909 * unused up to here).
2910 */
758d90e1 2911 mbuf = kvmalloc(array_size, GFP_KERNEL);
d14e6d76
PO		 2912 err = -ENOMEM;
2913 if (NULL == mbuf)
2914 goto out_array_args;
2915 err = -EFAULT;
2916 if (copy_from_user(mbuf, user_ptr, array_size))
2917 goto out_array_args;
2918 *kernel_ptr = mbuf;
35ea11ff
HV		 2919 }
2920
2921 /* Handles IOCTL */
fc0a8079 2922 err = func(file, cmd, parg);
35ea11ff 2923 if (err == -ENOIOCTLCMD)
02bbb814 2924 err = -ENOTTY;
aa32f4c0
HV		 2925 if (err == 0) {
2926 if (cmd == VIDIOC_DQBUF)
2927 trace_v4l2_dqbuf(video_devdata(file)->minor, parg);
2928 else if (cmd == VIDIOC_QBUF)
2929 trace_v4l2_qbuf(video_devdata(file)->minor, parg);
2930 }
35ea11ff 2931
d14e6d76 2932 if (has_array_args) {
ba2d35c1 2933 *kernel_ptr = (void __force *)user_ptr;
d14e6d76 2934 if (copy_to_user(user_ptr, mbuf, array_size))
35ea11ff 2935 err = -EFAULT;
d14e6d76 2936 goto out_array_args;
35ea11ff 2937 }
043f77ed
HV		 2938 /*
2939 * Some ioctls can return an error, but still have valid
2940 * results that must be returned.
2941 */
2942 if (err < 0 && !always_copy)
35ea11ff
HV		 2943 goto out;
2944
d14e6d76 2945out_array_args:
35ea11ff
HV		 2946 /* Copy results into user buffer */
2947 switch (_IOC_DIR(cmd)) {
2948 case _IOC_READ:
2949 case (_IOC_WRITE | _IOC_READ):
2950 if (copy_to_user((void __user *)arg, parg, _IOC_SIZE(cmd)))
2951 err = -EFAULT;
2952 break;
2953 }
2954
2955out:
758d90e1 2956 kvfree(mbuf);
35ea11ff
HV		 2957 return err;
2958}
fc0a8079
LP		 2959EXPORT_SYMBOL(video_usercopy);
2960
2961long video_ioctl2(struct file *file,
2962 unsigned int cmd, unsigned long arg)
2963{
2964 return video_usercopy(file, cmd, arg, __video_do_ioctl);
2965}
8a522c91 2966EXPORT_SYMBOL(video_ioctl2);
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