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media: v4l2-core: fix touch support in v4l_g_fmt
[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;
da460562 252 u32 planes;
be6c64e4
HV		 253 unsigned i;
254
255 pr_cont("type=%s", prt_names(p->type, v4l2_type_names));
256 switch (p->type) {
257 case V4L2_BUF_TYPE_VIDEO_CAPTURE:
258 case V4L2_BUF_TYPE_VIDEO_OUTPUT:
259 pix = &p->fmt.pix;
8720427c 260 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		 261 pix->width, pix->height,
262 (pix->pixelformat & 0xff),
263 (pix->pixelformat >> 8) & 0xff,
264 (pix->pixelformat >> 16) & 0xff,
265 (pix->pixelformat >> 24) & 0xff,
266 prt_names(pix->field, v4l2_field_names),
267 pix->bytesperline, pix->sizeimage,
736d96b5 268 pix->colorspace, pix->flags, pix->ycbcr_enc,
74fdcb2e 269 pix->quantization, pix->xfer_func);
be6c64e4
HV		 270 break;
271 case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE:
272 case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE:
273 mp = &p->fmt.pix_mp;
8720427c 274 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		 275 mp->width, mp->height,
276 (mp->pixelformat & 0xff),
277 (mp->pixelformat >> 8) & 0xff,
278 (mp->pixelformat >> 16) & 0xff,
279 (mp->pixelformat >> 24) & 0xff,
280 prt_names(mp->field, v4l2_field_names),
736d96b5 281 mp->colorspace, mp->num_planes, mp->flags,
74fdcb2e 282 mp->ycbcr_enc, mp->quantization, mp->xfer_func);
da460562
SA		 283 planes = min_t(u32, mp->num_planes, VIDEO_MAX_PLANES);
284 for (i = 0; i < planes; i++)
be6c64e4
HV		 285 printk(KERN_DEBUG "plane %u: bytesperline=%u sizeimage=%u\n", i,
286 mp->plane_fmt[i].bytesperline,
287 mp->plane_fmt[i].sizeimage);
288 break;
289 case V4L2_BUF_TYPE_VIDEO_OVERLAY:
290 case V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY:
291 win = &p->fmt.win;
560dde24
HV		 292 /* Note: we can't print the clip list here since the clips
293 * pointer is a userspace pointer, not a kernelspace
294 * pointer. */
295 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",
296 win->w.width, win->w.height, win->w.left, win->w.top,
be6c64e4 297 prt_names(win->field, v4l2_field_names),
560dde24
HV		 298 win->chromakey, win->clipcount, win->clips,
299 win->bitmap, win->global_alpha);
be6c64e4
HV		 300 break;
301 case V4L2_BUF_TYPE_VBI_CAPTURE:
302 case V4L2_BUF_TYPE_VBI_OUTPUT:
303 vbi = &p->fmt.vbi;
8720427c 304 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		 305 vbi->sampling_rate, vbi->offset,
306 vbi->samples_per_line,
307 (vbi->sample_format & 0xff),
308 (vbi->sample_format >> 8) & 0xff,
309 (vbi->sample_format >> 16) & 0xff,
310 (vbi->sample_format >> 24) & 0xff,
311 vbi->start[0], vbi->start[1],
312 vbi->count[0], vbi->count[1]);
313 break;
314 case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE:
315 case V4L2_BUF_TYPE_SLICED_VBI_OUTPUT:
316 sliced = &p->fmt.sliced;
317 pr_cont(", service_set=0x%08x, io_size=%d\n",
318 sliced->service_set, sliced->io_size);
319 for (i = 0; i < 24; i++)
320 printk(KERN_DEBUG "line[%02u]=0x%04x, 0x%04x\n", i,
321 sliced->service_lines[0][i],
322 sliced->service_lines[1][i]);
323 break;
582c52cb 324 case V4L2_BUF_TYPE_SDR_CAPTURE:
9effc72f 325 case V4L2_BUF_TYPE_SDR_OUTPUT:
582c52cb
AP		 326 sdr = &p->fmt.sdr;
327 pr_cont(", pixelformat=%c%c%c%c\n",
328 (sdr->pixelformat >> 0) & 0xff,
329 (sdr->pixelformat >> 8) & 0xff,
330 (sdr->pixelformat >> 16) & 0xff,
331 (sdr->pixelformat >> 24) & 0xff);
332 break;
fb9ffa6a
LP		 333 case V4L2_BUF_TYPE_META_CAPTURE:
334 meta = &p->fmt.meta;
335 pr_cont(", dataformat=%c%c%c%c, buffersize=%u\n",
336 (meta->dataformat >> 0) & 0xff,
337 (meta->dataformat >> 8) & 0xff,
338 (meta->dataformat >> 16) & 0xff,
339 (meta->dataformat >> 24) & 0xff,
340 meta->buffersize);
341 break;
be6c64e4
HV		 342 }
343}
344
345static void v4l_print_framebuffer(const void *arg, bool write_only)
346{
347 const struct v4l2_framebuffer *p = arg;
348
8720427c 349 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		 350 p->capability, p->flags, p->base,
351 p->fmt.width, p->fmt.height,
352 (p->fmt.pixelformat & 0xff),
353 (p->fmt.pixelformat >> 8) & 0xff,
354 (p->fmt.pixelformat >> 16) & 0xff,
355 (p->fmt.pixelformat >> 24) & 0xff,
356 p->fmt.bytesperline, p->fmt.sizeimage,
357 p->fmt.colorspace);
358}
359
e325b244
HV		 360static void v4l_print_buftype(const void *arg, bool write_only)
361{
362 pr_cont("type=%s\n", prt_names(*(u32 *)arg, v4l2_type_names));
363}
364
4b1e2e4d
HV		 365static void v4l_print_modulator(const void *arg, bool write_only)
366{
367 const struct v4l2_modulator *p = arg;
368
369 if (write_only)
560dde24 370 pr_cont("index=%u, txsubchans=0x%x\n", p->index, p->txsubchans);
4b1e2e4d 371 else
8720427c 372 pr_cont("index=%u, name=%.*s, capability=0x%x, rangelow=%u, rangehigh=%u, txsubchans=0x%x\n",
27d5a87c 373 p->index, (int)sizeof(p->name), p->name, p->capability,
4b1e2e4d
HV		 374 p->rangelow, p->rangehigh, p->txsubchans);
375}
376
377static void v4l_print_tuner(const void *arg, bool write_only)
378{
379 const struct v4l2_tuner *p = arg;
380
381 if (write_only)
382 pr_cont("index=%u, audmode=%u\n", p->index, p->audmode);
383 else
8720427c 384 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 385 p->index, (int)sizeof(p->name), p->name, p->type,
4b1e2e4d
HV		 386 p->capability, p->rangelow,
387 p->rangehigh, p->signal, p->afc,
388 p->rxsubchans, p->audmode);
389}
390
391static void v4l_print_frequency(const void *arg, bool write_only)
392{
393 const struct v4l2_frequency *p = arg;
394
395 pr_cont("tuner=%u, type=%u, frequency=%u\n",
396 p->tuner, p->type, p->frequency);
397}
398
399static void v4l_print_standard(const void *arg, bool write_only)
400{
401 const struct v4l2_standard *p = arg;
402
8720427c
MCC		 403 pr_cont("index=%u, id=0x%Lx, name=%.*s, fps=%u/%u, framelines=%u\n",
404 p->index,
27d5a87c 405 (unsigned long long)p->id, (int)sizeof(p->name), p->name,
4b1e2e4d
HV		 406 p->frameperiod.numerator,
407 p->frameperiod.denominator,
408 p->framelines);
409}
410
411static void v4l_print_std(const void *arg, bool write_only)
412{
413 pr_cont("std=0x%08Lx\n", *(const long long unsigned *)arg);
414}
415
416static void v4l_print_hw_freq_seek(const void *arg, bool write_only)
417{
418 const struct v4l2_hw_freq_seek *p = arg;
419
8720427c 420 pr_cont("tuner=%u, type=%u, seek_upward=%u, wrap_around=%u, spacing=%u, rangelow=%u, rangehigh=%u\n",
5e788317
HV		 421 p->tuner, p->type, p->seek_upward, p->wrap_around, p->spacing,
422 p->rangelow, p->rangehigh);
4b1e2e4d
HV		 423}
424
eb3728ed 425static void v4l_print_requestbuffers(const void *arg, bool write_only)
59076122 426{
eb3728ed
HV		 427 const struct v4l2_requestbuffers *p = arg;
428
429 pr_cont("count=%d, type=%s, memory=%s\n",
430 p->count,
431 prt_names(p->type, v4l2_type_names),
432 prt_names(p->memory, v4l2_memory_names));
59076122
HV		 433}
434
eb3728ed 435static void v4l_print_buffer(const void *arg, bool write_only)
35ea11ff 436{
eb3728ed
HV		 437 const struct v4l2_buffer *p = arg;
438 const struct v4l2_timecode *tc = &p->timecode;
439 const struct v4l2_plane *plane;
d14e6d76 440 int i;
35ea11ff 441
8720427c 442 pr_cont("%02ld:%02d:%02d.%08ld index=%d, type=%s, flags=0x%08x, field=%s, sequence=%d, memory=%s",
35ea11ff
HV		 443 p->timestamp.tv_sec / 3600,
444 (int)(p->timestamp.tv_sec / 60) % 60,
445 (int)(p->timestamp.tv_sec % 60),
b045979d 446 (long)p->timestamp.tv_usec,
35ea11ff
HV		 447 p->index,
448 prt_names(p->type, v4l2_type_names),
eb3728ed
HV		 449 p->flags, prt_names(p->field, v4l2_field_names),
450 p->sequence, prt_names(p->memory, v4l2_memory_names));
d14e6d76
PO		 451
452 if (V4L2_TYPE_IS_MULTIPLANAR(p->type) && p->m.planes) {
eb3728ed 453 pr_cont("\n");
d14e6d76
PO		 454 for (i = 0; i < p->length; ++i) {
455 plane = &p->m.planes[i];
eb3728ed 456 printk(KERN_DEBUG
8720427c 457 "plane %d: bytesused=%d, data_offset=0x%08x, offset/userptr=0x%lx, length=%d\n",
d14e6d76
PO		 458 i, plane->bytesused, plane->data_offset,
459 plane->m.userptr, plane->length);
460 }
461 } else {
560dde24 462 pr_cont(", bytesused=%d, offset/userptr=0x%lx, length=%d\n",
d14e6d76
PO		 463 p->bytesused, p->m.userptr, p->length);
464 }
465
8720427c 466 printk(KERN_DEBUG "timecode=%02d:%02d:%02d type=%d, flags=0x%08x, frames=%d, userbits=0x%08x\n",
35ea11ff
HV		 467 tc->hours, tc->minutes, tc->seconds,
468 tc->type, tc->flags, tc->frames, *(__u32 *)tc->userbits);
469}
470
b799d09a
TS		 471static void v4l_print_exportbuffer(const void *arg, bool write_only)
472{
473 const struct v4l2_exportbuffer *p = arg;
474
475 pr_cont("fd=%d, type=%s, index=%u, plane=%u, flags=0x%08x\n",
476 p->fd, prt_names(p->type, v4l2_type_names),
477 p->index, p->plane, p->flags);
478}
479
eb3728ed
HV		 480static void v4l_print_create_buffers(const void *arg, bool write_only)
481{
482 const struct v4l2_create_buffers *p = arg;
483
484 pr_cont("index=%d, count=%d, memory=%s, ",
485 p->index, p->count,
486 prt_names(p->memory, v4l2_memory_names));
487 v4l_print_format(&p->format, write_only);
488}
489
490static void v4l_print_streamparm(const void *arg, bool write_only)
491{
492 const struct v4l2_streamparm *p = arg;
493
494 pr_cont("type=%s", prt_names(p->type, v4l2_type_names));
495
496 if (p->type == V4L2_BUF_TYPE_VIDEO_CAPTURE ||
497 p->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) {
498 const struct v4l2_captureparm *c = &p->parm.capture;
499
8720427c 500 pr_cont(", capability=0x%x, capturemode=0x%x, timeperframe=%d/%d, extendedmode=%d, readbuffers=%d\n",
eb3728ed
HV		 501 c->capability, c->capturemode,
502 c->timeperframe.numerator, c->timeperframe.denominator,
503 c->extendedmode, c->readbuffers);
504 } else if (p->type == V4L2_BUF_TYPE_VIDEO_OUTPUT ||
505 p->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) {
506 const struct v4l2_outputparm *c = &p->parm.output;
507
8720427c 508 pr_cont(", capability=0x%x, outputmode=0x%x, timeperframe=%d/%d, extendedmode=%d, writebuffers=%d\n",
eb3728ed
HV		 509 c->capability, c->outputmode,
510 c->timeperframe.numerator, c->timeperframe.denominator,
511 c->extendedmode, c->writebuffers);
560dde24
HV		 512 } else {
513 pr_cont("\n");
eb3728ed
HV		 514 }
515}
516
efbceecd
HV		 517static void v4l_print_queryctrl(const void *arg, bool write_only)
518{
519 const struct v4l2_queryctrl *p = arg;
520
8720427c 521 pr_cont("id=0x%x, type=%d, name=%.*s, min/max=%d/%d, step=%d, default=%d, flags=0x%08x\n",
27d5a87c 522 p->id, p->type, (int)sizeof(p->name), p->name,
efbceecd
HV		 523 p->minimum, p->maximum,
524 p->step, p->default_value, p->flags);
525}
526
e6bee368
HV		 527static void v4l_print_query_ext_ctrl(const void *arg, bool write_only)
528{
529 const struct v4l2_query_ext_ctrl *p = arg;
530
8720427c 531 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		 532 p->id, p->type, (int)sizeof(p->name), p->name,
533 p->minimum, p->maximum,
534 p->step, p->default_value, p->flags,
535 p->elem_size, p->elems, p->nr_of_dims,
0176077a 536 p->dims[0], p->dims[1], p->dims[2], p->dims[3]);
e6bee368
HV		 537}
538
efbceecd
HV		 539static void v4l_print_querymenu(const void *arg, bool write_only)
540{
541 const struct v4l2_querymenu *p = arg;
542
543 pr_cont("id=0x%x, index=%d\n", p->id, p->index);
544}
545
546static void v4l_print_control(const void *arg, bool write_only)
547{
548 const struct v4l2_control *p = arg;
549
550 pr_cont("id=0x%x, value=%d\n", p->id, p->value);
551}
552
553static void v4l_print_ext_controls(const void *arg, bool write_only)
554{
555 const struct v4l2_ext_controls *p = arg;
556 int i;
557
0f8017be
RRD		 558 pr_cont("which=0x%x, count=%d, error_idx=%d",
559 p->which, p->count, p->error_idx);
efbceecd 560 for (i = 0; i < p->count; i++) {
017ab36a 561 if (!p->controls[i].size)
efbceecd
HV		 562 pr_cont(", id/val=0x%x/0x%x",
563 p->controls[i].id, p->controls[i].value);
564 else
565 pr_cont(", id/size=0x%x/%u",
566 p->controls[i].id, p->controls[i].size);
567 }
568 pr_cont("\n");
569}
570
d84f2d94 571static void v4l_print_cropcap(const void *arg, bool write_only)
eb3728ed 572{
d84f2d94
HV		 573 const struct v4l2_cropcap *p = arg;
574
8720427c 575 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		 576 prt_names(p->type, v4l2_type_names),
577 p->bounds.width, p->bounds.height,
578 p->bounds.left, p->bounds.top,
579 p->defrect.width, p->defrect.height,
580 p->defrect.left, p->defrect.top,
581 p->pixelaspect.numerator, p->pixelaspect.denominator);
eb3728ed
HV		 582}
583
d84f2d94 584static void v4l_print_crop(const void *arg, bool write_only)
35ea11ff 585{
d84f2d94
HV		 586 const struct v4l2_crop *p = arg;
587
588 pr_cont("type=%s, wxh=%dx%d, x,y=%d,%d\n",
589 prt_names(p->type, v4l2_type_names),
590 p->c.width, p->c.height,
591 p->c.left, p->c.top);
592}
593
594static void v4l_print_selection(const void *arg, bool write_only)
595{
596 const struct v4l2_selection *p = arg;
597
598 pr_cont("type=%s, target=%d, flags=0x%x, wxh=%dx%d, x,y=%d,%d\n",
599 prt_names(p->type, v4l2_type_names),
600 p->target, p->flags,
601 p->r.width, p->r.height, p->r.left, p->r.top);
602}
603
d806f2df
HV		 604static void v4l_print_jpegcompression(const void *arg, bool write_only)
605{
606 const struct v4l2_jpegcompression *p = arg;
607
8720427c 608 pr_cont("quality=%d, APPn=%d, APP_len=%d, COM_len=%d, jpeg_markers=0x%x\n",
d806f2df
HV		 609 p->quality, p->APPn, p->APP_len,
610 p->COM_len, p->jpeg_markers);
611}
612
613static void v4l_print_enc_idx(const void *arg, bool write_only)
614{
615 const struct v4l2_enc_idx *p = arg;
616
617 pr_cont("entries=%d, entries_cap=%d\n",
618 p->entries, p->entries_cap);
619}
620
621static void v4l_print_encoder_cmd(const void *arg, bool write_only)
622{
623 const struct v4l2_encoder_cmd *p = arg;
624
625 pr_cont("cmd=%d, flags=0x%x\n",
626 p->cmd, p->flags);
627}
628
629static void v4l_print_decoder_cmd(const void *arg, bool write_only)
630{
631 const struct v4l2_decoder_cmd *p = arg;
632
633 pr_cont("cmd=%d, flags=0x%x\n", p->cmd, p->flags);
634
635 if (p->cmd == V4L2_DEC_CMD_START)
636 pr_info("speed=%d, format=%u\n",
637 p->start.speed, p->start.format);
638 else if (p->cmd == V4L2_DEC_CMD_STOP)
639 pr_info("pts=%llu\n", p->stop.pts);
640}
641
96b03d2a 642static void v4l_print_dbg_chip_info(const void *arg, bool write_only)
79b0c640 643{
96b03d2a 644 const struct v4l2_dbg_chip_info *p = arg;
79b0c640
HV		 645
646 pr_cont("type=%u, ", p->match.type);
3eef2510 647 if (p->match.type == V4L2_CHIP_MATCH_I2C_DRIVER)
79b0c640
HV		 648 pr_cont("name=%.*s, ",
649 (int)sizeof(p->match.name), p->match.name);
650 else
651 pr_cont("addr=%u, ", p->match.addr);
652 pr_cont("name=%.*s\n", (int)sizeof(p->name), p->name);
653}
654
f16f77b0
HV		 655static void v4l_print_dbg_register(const void *arg, bool write_only)
656{
657 const struct v4l2_dbg_register *p = arg;
658
659 pr_cont("type=%u, ", p->match.type);
3eef2510 660 if (p->match.type == V4L2_CHIP_MATCH_I2C_DRIVER)
27d5a87c
HV		 661 pr_cont("name=%.*s, ",
662 (int)sizeof(p->match.name), p->match.name);
f16f77b0
HV		 663 else
664 pr_cont("addr=%u, ", p->match.addr);
665 pr_cont("reg=0x%llx, val=0x%llx\n",
666 p->reg, p->val);
667}
668
efc626b0 669static void v4l_print_dv_timings(const void *arg, bool write_only)
5d7758ee 670{
efc626b0
HV		 671 const struct v4l2_dv_timings *p = arg;
672
5d7758ee
HV		 673 switch (p->type) {
674 case V4L2_DV_BT_656_1120:
8720427c 675 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		 676 p->bt.interlaced, p->bt.pixelclock,
677 p->bt.width, p->bt.height,
678 p->bt.polarities, p->bt.hfrontporch,
679 p->bt.hsync, p->bt.hbackporch,
680 p->bt.vfrontporch, p->bt.vsync,
681 p->bt.vbackporch, p->bt.il_vfrontporch,
682 p->bt.il_vsync, p->bt.il_vbackporch,
683 p->bt.standards, p->bt.flags);
684 break;
685 default:
efc626b0 686 pr_cont("type=%d\n", p->type);
5d7758ee
HV		 687 break;
688 }
689}
690
efc626b0
HV		 691static void v4l_print_enum_dv_timings(const void *arg, bool write_only)
692{
693 const struct v4l2_enum_dv_timings *p = arg;
694
695 pr_cont("index=%u, ", p->index);
696 v4l_print_dv_timings(&p->timings, write_only);
697}
698
699static void v4l_print_dv_timings_cap(const void *arg, bool write_only)
700{
701 const struct v4l2_dv_timings_cap *p = arg;
702
703 switch (p->type) {
704 case V4L2_DV_BT_656_1120:
8720427c 705 pr_cont("type=bt-656/1120, width=%u-%u, height=%u-%u, pixelclock=%llu-%llu, standards=0x%x, capabilities=0x%x\n",
efc626b0
HV		 706 p->bt.min_width, p->bt.max_width,
707 p->bt.min_height, p->bt.max_height,
708 p->bt.min_pixelclock, p->bt.max_pixelclock,
709 p->bt.standards, p->bt.capabilities);
710 break;
711 default:
712 pr_cont("type=%u\n", p->type);
713 break;
714 }
715}
716
458aa4a6
HV		 717static void v4l_print_frmsizeenum(const void *arg, bool write_only)
718{
719 const struct v4l2_frmsizeenum *p = arg;
720
721 pr_cont("index=%u, pixelformat=%c%c%c%c, type=%u",
722 p->index,
723 (p->pixel_format & 0xff),
724 (p->pixel_format >> 8) & 0xff,
725 (p->pixel_format >> 16) & 0xff,
726 (p->pixel_format >> 24) & 0xff,
727 p->type);
728 switch (p->type) {
729 case V4L2_FRMSIZE_TYPE_DISCRETE:
560dde24 730 pr_cont(", wxh=%ux%u\n",
458aa4a6
HV		 731 p->discrete.width, p->discrete.height);
732 break;
733 case V4L2_FRMSIZE_TYPE_STEPWISE:
560dde24 734 pr_cont(", min=%ux%u, max=%ux%u, step=%ux%u\n",
2489477e
RRD		 735 p->stepwise.min_width,
736 p->stepwise.min_height,
737 p->stepwise.max_width,
738 p->stepwise.max_height,
739 p->stepwise.step_width,
740 p->stepwise.step_height);
458aa4a6
HV		 741 break;
742 case V4L2_FRMSIZE_TYPE_CONTINUOUS:
743 /* fall through */
744 default:
745 pr_cont("\n");
746 break;
747 }
748}
749
750static void v4l_print_frmivalenum(const void *arg, bool write_only)
751{
752 const struct v4l2_frmivalenum *p = arg;
753
754 pr_cont("index=%u, pixelformat=%c%c%c%c, wxh=%ux%u, type=%u",
755 p->index,
756 (p->pixel_format & 0xff),
757 (p->pixel_format >> 8) & 0xff,
758 (p->pixel_format >> 16) & 0xff,
759 (p->pixel_format >> 24) & 0xff,
760 p->width, p->height, p->type);
761 switch (p->type) {
762 case V4L2_FRMIVAL_TYPE_DISCRETE:
560dde24 763 pr_cont(", fps=%d/%d\n",
458aa4a6
HV		 764 p->discrete.numerator,
765 p->discrete.denominator);
766 break;
767 case V4L2_FRMIVAL_TYPE_STEPWISE:
560dde24 768 pr_cont(", min=%d/%d, max=%d/%d, step=%d/%d\n",
458aa4a6
HV		 769 p->stepwise.min.numerator,
770 p->stepwise.min.denominator,
771 p->stepwise.max.numerator,
772 p->stepwise.max.denominator,
773 p->stepwise.step.numerator,
774 p->stepwise.step.denominator);
775 break;
776 case V4L2_FRMIVAL_TYPE_CONTINUOUS:
777 /* fall through */
778 default:
779 pr_cont("\n");
780 break;
781 }
782}
783
784static void v4l_print_event(const void *arg, bool write_only)
785{
786 const struct v4l2_event *p = arg;
787 const struct v4l2_event_ctrl *c;
788
8720427c 789 pr_cont("type=0x%x, pending=%u, sequence=%u, id=%u, timestamp=%lu.%9.9lu\n",
458aa4a6
HV		 790 p->type, p->pending, p->sequence, p->id,
791 p->timestamp.tv_sec, p->timestamp.tv_nsec);
792 switch (p->type) {
793 case V4L2_EVENT_VSYNC:
794 printk(KERN_DEBUG "field=%s\n",
795 prt_names(p->u.vsync.field, v4l2_field_names));
796 break;
797 case V4L2_EVENT_CTRL:
798 c = &p->u.ctrl;
799 printk(KERN_DEBUG "changes=0x%x, type=%u, ",
800 c->changes, c->type);
801 if (c->type == V4L2_CTRL_TYPE_INTEGER64)
802 pr_cont("value64=%lld, ", c->value64);
803 else
804 pr_cont("value=%d, ", c->value);
8720427c 805 pr_cont("flags=0x%x, minimum=%d, maximum=%d, step=%d, default_value=%d\n",
458aa4a6
HV		 806 c->flags, c->minimum, c->maximum,
807 c->step, c->default_value);
808 break;
809 case V4L2_EVENT_FRAME_SYNC:
810 pr_cont("frame_sequence=%u\n",
811 p->u.frame_sync.frame_sequence);
812 break;
813 }
814}
815
816static void v4l_print_event_subscription(const void *arg, bool write_only)
817{
818 const struct v4l2_event_subscription *p = arg;
819
820 pr_cont("type=0x%x, id=0x%x, flags=0x%x\n",
821 p->type, p->id, p->flags);
822}
823
824static void v4l_print_sliced_vbi_cap(const void *arg, bool write_only)
825{
826 const struct v4l2_sliced_vbi_cap *p = arg;
827 int i;
828
829 pr_cont("type=%s, service_set=0x%08x\n",
830 prt_names(p->type, v4l2_type_names), p->service_set);
831 for (i = 0; i < 24; i++)
832 printk(KERN_DEBUG "line[%02u]=0x%04x, 0x%04x\n", i,
833 p->service_lines[0][i],
834 p->service_lines[1][i]);
835}
836
82b655bf
HV		 837static void v4l_print_freq_band(const void *arg, bool write_only)
838{
839 const struct v4l2_frequency_band *p = arg;
840
8720427c 841 pr_cont("tuner=%u, type=%u, index=%u, capability=0x%x, rangelow=%u, rangehigh=%u, modulation=0x%x\n",
82b655bf
HV		 842 p->tuner, p->type, p->index,
843 p->capability, p->rangelow,
844 p->rangehigh, p->modulation);
845}
846
dd519bb3
HV		 847static void v4l_print_edid(const void *arg, bool write_only)
848{
849 const struct v4l2_edid *p = arg;
850
851 pr_cont("pad=%u, start_block=%u, blocks=%u\n",
852 p->pad, p->start_block, p->blocks);
853}
854
efc626b0
HV		 855static void v4l_print_u32(const void *arg, bool write_only)
856{
857 pr_cont("value=%u\n", *(const u32 *)arg);
858}
859
860static void v4l_print_newline(const void *arg, bool write_only)
861{
862 pr_cont("\n");
863}
864
f18d8e07
HV		 865static void v4l_print_default(const void *arg, bool write_only)
866{
867 pr_cont("driver-specific ioctl\n");
868}
869
efbceecd 870static int check_ext_ctrls(struct v4l2_ext_controls *c, int allow_priv)
35ea11ff
HV		 871{
872 __u32 i;
873
874 /* zero the reserved fields */
875 c->reserved[0] = c->reserved[1] = 0;
6b5a9492 876 for (i = 0; i < c->count; i++)
35ea11ff 877 c->controls[i].reserved2[0] = 0;
6b5a9492 878
35ea11ff
HV		 879 /* V4L2_CID_PRIVATE_BASE cannot be used as control class
880 when using extended controls.
881 Only when passed in through VIDIOC_G_CTRL and VIDIOC_S_CTRL
882 is it allowed for backwards compatibility.
883 */
0f8017be 884 if (!allow_priv && c->which == V4L2_CID_PRIVATE_BASE)
35ea11ff 885 return 0;
0f8017be 886 if (!c->which)
9b239b22 887 return 1;
35ea11ff
HV		 888 /* Check that all controls are from the same control class. */
889 for (i = 0; i < c->count; i++) {
0f8017be 890 if (V4L2_CTRL_ID2WHICH(c->controls[i].id) != c->which) {
35ea11ff
HV		 891 c->error_idx = i;
892 return 0;
893 }
894 }
895 return 1;
896}
897
4b20259f 898static int check_fmt(struct file *file, enum v4l2_buf_type type)
35ea11ff 899{
4b20259f
HV		 900 struct video_device *vfd = video_devdata(file);
901 const struct v4l2_ioctl_ops *ops = vfd->ioctl_ops;
902 bool is_vid = vfd->vfl_type == VFL_TYPE_GRABBER;
903 bool is_vbi = vfd->vfl_type == VFL_TYPE_VBI;
582c52cb 904 bool is_sdr = vfd->vfl_type == VFL_TYPE_SDR;
b2fe22d0 905 bool is_tch = vfd->vfl_type == VFL_TYPE_TOUCH;
4b20259f
HV		 906 bool is_rx = vfd->vfl_dir != VFL_DIR_TX;
907 bool is_tx = vfd->vfl_dir != VFL_DIR_RX;
908
a399810c
HV		 909 if (ops == NULL)
910 return -EINVAL;
911
35ea11ff
HV		 912 switch (type) {
913 case V4L2_BUF_TYPE_VIDEO_CAPTURE:
b2fe22d0 914 if ((is_vid || is_tch) && is_rx &&
4b20259f 915 (ops->vidioc_g_fmt_vid_cap || ops->vidioc_g_fmt_vid_cap_mplane))
d14e6d76
PO		 916 return 0;
917 break;
918 case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE:
4b20259f 919 if (is_vid && is_rx && ops->vidioc_g_fmt_vid_cap_mplane)
35ea11ff
HV		 920 return 0;
921 break;
922 case V4L2_BUF_TYPE_VIDEO_OVERLAY:
4b20259f 923 if (is_vid && is_rx && ops->vidioc_g_fmt_vid_overlay)
35ea11ff
HV		 924 return 0;
925 break;
926 case V4L2_BUF_TYPE_VIDEO_OUTPUT:
4b20259f
HV		 927 if (is_vid && is_tx &&
928 (ops->vidioc_g_fmt_vid_out || ops->vidioc_g_fmt_vid_out_mplane))
d14e6d76
PO		 929 return 0;
930 break;
931 case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE:
4b20259f 932 if (is_vid && is_tx && ops->vidioc_g_fmt_vid_out_mplane)
35ea11ff
HV		 933 return 0;
934 break;
935 case V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY:
4b20259f 936 if (is_vid && is_tx && ops->vidioc_g_fmt_vid_out_overlay)
35ea11ff
HV		 937 return 0;
938 break;
939 case V4L2_BUF_TYPE_VBI_CAPTURE:
4b20259f 940 if (is_vbi && is_rx && ops->vidioc_g_fmt_vbi_cap)
35ea11ff
HV		 941 return 0;
942 break;
943 case V4L2_BUF_TYPE_VBI_OUTPUT:
4b20259f 944 if (is_vbi && is_tx && ops->vidioc_g_fmt_vbi_out)
35ea11ff
HV		 945 return 0;
946 break;
947 case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE:
4b20259f 948 if (is_vbi && is_rx && ops->vidioc_g_fmt_sliced_vbi_cap)
35ea11ff
HV		 949 return 0;
950 break;
951 case V4L2_BUF_TYPE_SLICED_VBI_OUTPUT:
4b20259f 952 if (is_vbi && is_tx && ops->vidioc_g_fmt_sliced_vbi_out)
35ea11ff
HV		 953 return 0;
954 break;
582c52cb
AP		 955 case V4L2_BUF_TYPE_SDR_CAPTURE:
956 if (is_sdr && is_rx && ops->vidioc_g_fmt_sdr_cap)
957 return 0;
958 break;
9effc72f
AP		 959 case V4L2_BUF_TYPE_SDR_OUTPUT:
960 if (is_sdr && is_tx && ops->vidioc_g_fmt_sdr_out)
961 return 0;
962 break;
fb9ffa6a
LP		 963 case V4L2_BUF_TYPE_META_CAPTURE:
964 if (is_vid && is_rx && ops->vidioc_g_fmt_meta_cap)
965 return 0;
966 break;
633c98e5 967 default:
35ea11ff
HV		 968 break;
969 }
970 return -EINVAL;
971}
972
d52e2381
LP		 973static void v4l_sanitize_format(struct v4l2_format *fmt)
974{
975 unsigned int offset;
976
977 /*
978 * The v4l2_pix_format structure has been extended with fields that were
979 * not previously required to be set to zero by applications. The priv
980 * field, when set to a magic value, indicates the the extended fields
981 * are valid. Otherwise they will contain undefined values. To simplify
982 * the API towards drivers zero the extended fields and set the priv
983 * field to the magic value when the extended pixel format structure
984 * isn't used by applications.
985 */
986
987 if (fmt->type != V4L2_BUF_TYPE_VIDEO_CAPTURE &&
988 fmt->type != V4L2_BUF_TYPE_VIDEO_OUTPUT)
989 return;
990
991 if (fmt->fmt.pix.priv == V4L2_PIX_FMT_PRIV_MAGIC)
992 return;
993
994 fmt->fmt.pix.priv = V4L2_PIX_FMT_PRIV_MAGIC;
995
996 offset = offsetof(struct v4l2_pix_format, priv)
997 + sizeof(fmt->fmt.pix.priv);
998 memset(((void *)&fmt->fmt.pix) + offset, 0,
999 sizeof(fmt->fmt.pix) - offset);
1000}
1001
59076122
HV		 1002static int v4l_querycap(const struct v4l2_ioctl_ops *ops,
1003 struct file *file, void *fh, void *arg)
1004{
1005 struct v4l2_capability *cap = (struct v4l2_capability *)arg;
7bbe7813 1006 struct video_device *vfd = video_devdata(file);
d52e2381 1007 int ret;
59076122
HV		 1008
1009 cap->version = LINUX_VERSION_CODE;
7bbe7813
HV		 1010 cap->device_caps = vfd->device_caps;
1011 cap->capabilities = vfd->device_caps | V4L2_CAP_DEVICE_CAPS;
d52e2381
LP		 1012
1013 ret = ops->vidioc_querycap(file, fh, cap);
1014
1015 cap->capabilities |= V4L2_CAP_EXT_PIX_FORMAT;
454a4e72
HV		 1016 /*
1017 * Drivers MUST fill in device_caps, so check for this and
1018 * warn if it was forgotten.
1019 */
6d7570c4
LA		 1020 WARN(!(cap->capabilities & V4L2_CAP_DEVICE_CAPS) ||
1021 !cap->device_caps, "Bad caps for driver %s, %x %x",
1022 cap->driver, cap->capabilities, cap->device_caps);
796a2bd2 1023 cap->device_caps |= V4L2_CAP_EXT_PIX_FORMAT;
d52e2381
LP		 1024
1025 return ret;
59076122
HV		 1026}
1027
1028static int v4l_s_input(const struct v4l2_ioctl_ops *ops,
1029 struct file *file, void *fh, void *arg)
1030{
77fa4e07
SK		 1031 struct video_device *vfd = video_devdata(file);
1032 int ret;
1033
1034 ret = v4l_enable_media_source(vfd);
1035 if (ret)
1036 return ret;
59076122
HV		 1037 return ops->vidioc_s_input(file, fh, *(unsigned int *)arg);
1038}
1039
1040static int v4l_s_output(const struct v4l2_ioctl_ops *ops,
1041 struct file *file, void *fh, void *arg)
1042{
1043 return ops->vidioc_s_output(file, fh, *(unsigned int *)arg);
1044}
1045
d0547cba
HV		 1046static int v4l_g_priority(const struct v4l2_ioctl_ops *ops,
1047 struct file *file, void *fh, void *arg)
1048{
1049 struct video_device *vfd;
1050 u32 *p = arg;
1051
d0547cba 1052 vfd = video_devdata(file);
59b702ea 1053 *p = v4l2_prio_max(vfd->prio);
d0547cba
HV		 1054 return 0;
1055}
1056
1057static int v4l_s_priority(const struct v4l2_ioctl_ops *ops,
1058 struct file *file, void *fh, void *arg)
1059{
1060 struct video_device *vfd;
1061 struct v4l2_fh *vfh;
1062 u32 *p = arg;
1063
d0547cba 1064 vfd = video_devdata(file);
2438e78a
HV		 1065 if (!test_bit(V4L2_FL_USES_V4L2_FH, &vfd->flags))
1066 return -ENOTTY;
d0547cba 1067 vfh = file->private_data;
59b702ea 1068 return v4l2_prio_change(vfd->prio, &vfh->prio, *p);
d0547cba
HV		 1069}
1070
59076122
HV		 1071static int v4l_enuminput(const struct v4l2_ioctl_ops *ops,
1072 struct file *file, void *fh, void *arg)
1073{
73f35418 1074 struct video_device *vfd = video_devdata(file);
59076122
HV		 1075 struct v4l2_input *p = arg;
1076
1077 /*
02fa6282 1078 * We set the flags for CAP_DV_TIMINGS &
59076122
HV		 1079 * CAP_STD here based on ioctl handler provided by the
1080 * driver. If the driver doesn't support these
1081 * for a specific input, it must override these flags.
1082 */
73f35418 1083 if (is_valid_ioctl(vfd, VIDIOC_S_STD))
59076122 1084 p->capabilities |= V4L2_IN_CAP_STD;
59076122
HV		 1085
1086 return ops->vidioc_enum_input(file, fh, p);
1087}
1088
1089static int v4l_enumoutput(const struct v4l2_ioctl_ops *ops,
1090 struct file *file, void *fh, void *arg)
1091{
73f35418 1092 struct video_device *vfd = video_devdata(file);
59076122
HV		 1093 struct v4l2_output *p = arg;
1094
1095 /*
02fa6282 1096 * We set the flags for CAP_DV_TIMINGS &
59076122
HV		 1097 * CAP_STD here based on ioctl handler provided by the
1098 * driver. If the driver doesn't support these
1099 * for a specific output, it must override these flags.
1100 */
73f35418 1101 if (is_valid_ioctl(vfd, VIDIOC_S_STD))
59076122 1102 p->capabilities |= V4L2_OUT_CAP_STD;
59076122
HV		 1103
1104 return ops->vidioc_enum_output(file, fh, p);
1105}
1106
ba300204
HV		 1107static void v4l_fill_fmtdesc(struct v4l2_fmtdesc *fmt)
1108{
1109 const unsigned sz = sizeof(fmt->description);
1110 const char *descr = NULL;
1111 u32 flags = 0;
1112
1113 /*
1114 * We depart from the normal coding style here since the descriptions
1115 * should be aligned so it is easy to see which descriptions will be
1116 * longer than 31 characters (the max length for a description).
1117 * And frankly, this is easier to read anyway.
1118 *
1119 * Note that gcc will use O(log N) comparisons to find the right case.
1120 */
1121 switch (fmt->pixelformat) {
1122 /* Max description length mask: descr = "0123456789012345678901234567890" */
1123 case V4L2_PIX_FMT_RGB332: descr = "8-bit RGB 3-3-2"; break;
1124 case V4L2_PIX_FMT_RGB444: descr = "16-bit A/XRGB 4-4-4-4"; break;
1125 case V4L2_PIX_FMT_ARGB444: descr = "16-bit ARGB 4-4-4-4"; break;
1126 case V4L2_PIX_FMT_XRGB444: descr = "16-bit XRGB 4-4-4-4"; break;
1127 case V4L2_PIX_FMT_RGB555: descr = "16-bit A/XRGB 1-5-5-5"; break;
1128 case V4L2_PIX_FMT_ARGB555: descr = "16-bit ARGB 1-5-5-5"; break;
1129 case V4L2_PIX_FMT_XRGB555: descr = "16-bit XRGB 1-5-5-5"; break;
1130 case V4L2_PIX_FMT_RGB565: descr = "16-bit RGB 5-6-5"; break;
1131 case V4L2_PIX_FMT_RGB555X: descr = "16-bit A/XRGB 1-5-5-5 BE"; break;
1132 case V4L2_PIX_FMT_ARGB555X: descr = "16-bit ARGB 1-5-5-5 BE"; break;
1133 case V4L2_PIX_FMT_XRGB555X: descr = "16-bit XRGB 1-5-5-5 BE"; break;
1134 case V4L2_PIX_FMT_RGB565X: descr = "16-bit RGB 5-6-5 BE"; break;
1135 case V4L2_PIX_FMT_BGR666: descr = "18-bit BGRX 6-6-6-14"; break;
1136 case V4L2_PIX_FMT_BGR24: descr = "24-bit BGR 8-8-8"; break;
1137 case V4L2_PIX_FMT_RGB24: descr = "24-bit RGB 8-8-8"; break;
1138 case V4L2_PIX_FMT_BGR32: descr = "32-bit BGRA/X 8-8-8-8"; break;
1139 case V4L2_PIX_FMT_ABGR32: descr = "32-bit BGRA 8-8-8-8"; break;
1140 case V4L2_PIX_FMT_XBGR32: descr = "32-bit BGRX 8-8-8-8"; break;
1141 case V4L2_PIX_FMT_RGB32: descr = "32-bit A/XRGB 8-8-8-8"; break;
1142 case V4L2_PIX_FMT_ARGB32: descr = "32-bit ARGB 8-8-8-8"; break;
1143 case V4L2_PIX_FMT_XRGB32: descr = "32-bit XRGB 8-8-8-8"; break;
1144 case V4L2_PIX_FMT_GREY: descr = "8-bit Greyscale"; break;
1145 case V4L2_PIX_FMT_Y4: descr = "4-bit Greyscale"; break;
1146 case V4L2_PIX_FMT_Y6: descr = "6-bit Greyscale"; break;
1147 case V4L2_PIX_FMT_Y10: descr = "10-bit Greyscale"; break;
1148 case V4L2_PIX_FMT_Y12: descr = "12-bit Greyscale"; break;
1149 case V4L2_PIX_FMT_Y16: descr = "16-bit Greyscale"; break;
2e5e435f 1150 case V4L2_PIX_FMT_Y16_BE: descr = "16-bit Greyscale BE"; break;
ba300204 1151 case V4L2_PIX_FMT_Y10BPACK: descr = "10-bit Greyscale (Packed)"; break;
5b382290
LP		 1152 case V4L2_PIX_FMT_Y8I: descr = "Interleaved 8-bit Greyscale"; break;
1153 case V4L2_PIX_FMT_Y12I: descr = "Interleaved 12-bit Greyscale"; break;
1154 case V4L2_PIX_FMT_Z16: descr = "16-bit Depth"; break;
5df082e2 1155 case V4L2_PIX_FMT_INZI: descr = "Planar 10:16 Greyscale Depth"; break;
ba300204
HV		 1156 case V4L2_PIX_FMT_PAL8: descr = "8-bit Palette"; break;
1157 case V4L2_PIX_FMT_UV8: descr = "8-bit Chrominance UV 4-4"; break;
1158 case V4L2_PIX_FMT_YVU410: descr = "Planar YVU 4:1:0"; break;
1159 case V4L2_PIX_FMT_YVU420: descr = "Planar YVU 4:2:0"; break;
1160 case V4L2_PIX_FMT_YUYV: descr = "YUYV 4:2:2"; break;
1161 case V4L2_PIX_FMT_YYUV: descr = "YYUV 4:2:2"; break;
1162 case V4L2_PIX_FMT_YVYU: descr = "YVYU 4:2:2"; break;
1163 case V4L2_PIX_FMT_UYVY: descr = "UYVY 4:2:2"; break;
1164 case V4L2_PIX_FMT_VYUY: descr = "VYUY 4:2:2"; break;
fcbafafb 1165 case V4L2_PIX_FMT_YUV422P: descr = "Planar YUV 4:2:2"; break;
ba300204
HV		 1166 case V4L2_PIX_FMT_YUV411P: descr = "Planar YUV 4:1:1"; break;
1167 case V4L2_PIX_FMT_Y41P: descr = "YUV 4:1:1 (Packed)"; break;
1168 case V4L2_PIX_FMT_YUV444: descr = "16-bit A/XYUV 4-4-4-4"; break;
1169 case V4L2_PIX_FMT_YUV555: descr = "16-bit A/XYUV 1-5-5-5"; break;
1170 case V4L2_PIX_FMT_YUV565: descr = "16-bit YUV 5-6-5"; break;
1171 case V4L2_PIX_FMT_YUV32: descr = "32-bit A/XYUV 8-8-8-8"; break;
1172 case V4L2_PIX_FMT_YUV410: descr = "Planar YUV 4:1:0"; break;
1173 case V4L2_PIX_FMT_YUV420: descr = "Planar YUV 4:2:0"; break;
1174 case V4L2_PIX_FMT_HI240: descr = "8-bit Dithered RGB (BTTV)"; break;
1175 case V4L2_PIX_FMT_HM12: descr = "YUV 4:2:0 (16x16 Macroblocks)"; break;
1176 case V4L2_PIX_FMT_M420: descr = "YUV 4:2:0 (M420)"; break;
1177 case V4L2_PIX_FMT_NV12: descr = "Y/CbCr 4:2:0"; break;
1178 case V4L2_PIX_FMT_NV21: descr = "Y/CrCb 4:2:0"; break;
1179 case V4L2_PIX_FMT_NV16: descr = "Y/CbCr 4:2:2"; break;
1180 case V4L2_PIX_FMT_NV61: descr = "Y/CrCb 4:2:2"; break;
1181 case V4L2_PIX_FMT_NV24: descr = "Y/CbCr 4:4:4"; break;
1182 case V4L2_PIX_FMT_NV42: descr = "Y/CrCb 4:4:4"; break;
1183 case V4L2_PIX_FMT_NV12M: descr = "Y/CbCr 4:2:0 (N-C)"; break;
1184 case V4L2_PIX_FMT_NV21M: descr = "Y/CrCb 4:2:0 (N-C)"; break;
1185 case V4L2_PIX_FMT_NV16M: descr = "Y/CbCr 4:2:2 (N-C)"; break;
1186 case V4L2_PIX_FMT_NV61M: descr = "Y/CrCb 4:2:2 (N-C)"; break;
1187 case V4L2_PIX_FMT_NV12MT: descr = "Y/CbCr 4:2:0 (64x32 MB, N-C)"; break;
1188 case V4L2_PIX_FMT_NV12MT_16X16: descr = "Y/CbCr 4:2:0 (16x16 MB, N-C)"; break;
1189 case V4L2_PIX_FMT_YUV420M: descr = "Planar YUV 4:2:0 (N-C)"; break;
1190 case V4L2_PIX_FMT_YVU420M: descr = "Planar YVU 4:2:0 (N-C)"; break;
d65fae92
LP		 1191 case V4L2_PIX_FMT_YUV422M: descr = "Planar YUV 4:2:2 (N-C)"; break;
1192 case V4L2_PIX_FMT_YVU422M: descr = "Planar YVU 4:2:2 (N-C)"; break;
1193 case V4L2_PIX_FMT_YUV444M: descr = "Planar YUV 4:4:4 (N-C)"; break;
1194 case V4L2_PIX_FMT_YVU444M: descr = "Planar YVU 4:4:4 (N-C)"; break;
ba300204
HV		 1195 case V4L2_PIX_FMT_SBGGR8: descr = "8-bit Bayer BGBG/GRGR"; break;
1196 case V4L2_PIX_FMT_SGBRG8: descr = "8-bit Bayer GBGB/RGRG"; break;
1197 case V4L2_PIX_FMT_SGRBG8: descr = "8-bit Bayer GRGR/BGBG"; break;
1198 case V4L2_PIX_FMT_SRGGB8: descr = "8-bit Bayer RGRG/GBGB"; break;
1199 case V4L2_PIX_FMT_SBGGR10: descr = "10-bit Bayer BGBG/GRGR"; break;
1200 case V4L2_PIX_FMT_SGBRG10: descr = "10-bit Bayer GBGB/RGRG"; break;
1201 case V4L2_PIX_FMT_SGRBG10: descr = "10-bit Bayer GRGR/BGBG"; break;
1202 case V4L2_PIX_FMT_SRGGB10: descr = "10-bit Bayer RGRG/GBGB"; break;
ba300204
HV		 1203 case V4L2_PIX_FMT_SBGGR10P: descr = "10-bit Bayer BGBG/GRGR Packed"; break;
1204 case V4L2_PIX_FMT_SGBRG10P: descr = "10-bit Bayer GBGB/RGRG Packed"; break;
1205 case V4L2_PIX_FMT_SGRBG10P: descr = "10-bit Bayer GRGR/BGBG Packed"; break;
1206 case V4L2_PIX_FMT_SRGGB10P: descr = "10-bit Bayer RGRG/GBGB Packed"; break;
1207 case V4L2_PIX_FMT_SBGGR10ALAW8: descr = "8-bit Bayer BGBG/GRGR (A-law)"; break;
1208 case V4L2_PIX_FMT_SGBRG10ALAW8: descr = "8-bit Bayer GBGB/RGRG (A-law)"; break;
1209 case V4L2_PIX_FMT_SGRBG10ALAW8: descr = "8-bit Bayer GRGR/BGBG (A-law)"; break;
1210 case V4L2_PIX_FMT_SRGGB10ALAW8: descr = "8-bit Bayer RGRG/GBGB (A-law)"; break;
1211 case V4L2_PIX_FMT_SBGGR10DPCM8: descr = "8-bit Bayer BGBG/GRGR (DPCM)"; break;
1212 case V4L2_PIX_FMT_SGBRG10DPCM8: descr = "8-bit Bayer GBGB/RGRG (DPCM)"; break;
1213 case V4L2_PIX_FMT_SGRBG10DPCM8: descr = "8-bit Bayer GRGR/BGBG (DPCM)"; break;
1214 case V4L2_PIX_FMT_SRGGB10DPCM8: descr = "8-bit Bayer RGRG/GBGB (DPCM)"; break;
d1b3437e
SA		 1215 case V4L2_PIX_FMT_SBGGR12: descr = "12-bit Bayer BGBG/GRGR"; break;
1216 case V4L2_PIX_FMT_SGBRG12: descr = "12-bit Bayer GBGB/RGRG"; break;
1217 case V4L2_PIX_FMT_SGRBG12: descr = "12-bit Bayer GRGR/BGBG"; break;
1218 case V4L2_PIX_FMT_SRGGB12: descr = "12-bit Bayer RGRG/GBGB"; break;
1219 case V4L2_PIX_FMT_SBGGR12P: descr = "12-bit Bayer BGBG/GRGR Packed"; break;
1220 case V4L2_PIX_FMT_SGBRG12P: descr = "12-bit Bayer GBGB/RGRG Packed"; break;
1221 case V4L2_PIX_FMT_SGRBG12P: descr = "12-bit Bayer GRGR/BGBG Packed"; break;
1222 case V4L2_PIX_FMT_SRGGB12P: descr = "12-bit Bayer RGRG/GBGB Packed"; break;
b9a4b13c
SA		 1223 case V4L2_PIX_FMT_SBGGR16: descr = "16-bit Bayer BGBG/GRGR"; break;
1224 case V4L2_PIX_FMT_SGBRG16: descr = "16-bit Bayer GBGB/RGRG"; break;
1225 case V4L2_PIX_FMT_SGRBG16: descr = "16-bit Bayer GRGR/BGBG"; break;
1226 case V4L2_PIX_FMT_SRGGB16: descr = "16-bit Bayer RGRG/GBGB"; break;
99b74277 1227 case V4L2_PIX_FMT_SN9C20X_I420: descr = "GSPCA SN9C20X I420"; break;
ba300204
HV		 1228 case V4L2_PIX_FMT_SPCA501: descr = "GSPCA SPCA501"; break;
1229 case V4L2_PIX_FMT_SPCA505: descr = "GSPCA SPCA505"; break;
1230 case V4L2_PIX_FMT_SPCA508: descr = "GSPCA SPCA508"; break;
1231 case V4L2_PIX_FMT_STV0680: descr = "GSPCA STV0680"; break;
1232 case V4L2_PIX_FMT_TM6000: descr = "A/V + VBI Mux Packet"; break;
1233 case V4L2_PIX_FMT_CIT_YYVYUY: descr = "GSPCA CIT YYVYUY"; break;
1234 case V4L2_PIX_FMT_KONICA420: descr = "GSPCA KONICA420"; break;
66b2ab27
RRD		 1235 case V4L2_PIX_FMT_HSV24: descr = "24-bit HSV 8-8-8"; break;
1236 case V4L2_PIX_FMT_HSV32: descr = "32-bit XHSV 8-8-8-8"; break;
48fc10aa
AP		 1237 case V4L2_SDR_FMT_CU8: descr = "Complex U8"; break;
1238 case V4L2_SDR_FMT_CU16LE: descr = "Complex U16LE"; break;
ba300204
HV		 1239 case V4L2_SDR_FMT_CS8: descr = "Complex S8"; break;
1240 case V4L2_SDR_FMT_CS14LE: descr = "Complex S14LE"; break;
1241 case V4L2_SDR_FMT_RU12LE: descr = "Real U12LE"; break;
c28f2118
RS		 1242 case V4L2_SDR_FMT_PCU16BE: descr = "Planar Complex U16BE"; break;
1243 case V4L2_SDR_FMT_PCU18BE: descr = "Planar Complex U18BE"; break;
1244 case V4L2_SDR_FMT_PCU20BE: descr = "Planar Complex U20BE"; break;
b2fe22d0
ND		 1245 case V4L2_TCH_FMT_DELTA_TD16: descr = "16-bit signed deltas"; break;
1246 case V4L2_TCH_FMT_DELTA_TD08: descr = "8-bit signed deltas"; break;
1247 case V4L2_TCH_FMT_TU16: descr = "16-bit unsigned touch data"; break;
1248 case V4L2_TCH_FMT_TU08: descr = "8-bit unsigned touch data"; break;
14d66538 1249 case V4L2_META_FMT_VSP1_HGO: descr = "R-Car VSP1 1-D Histogram"; break;
5deb1c04 1250 case V4L2_META_FMT_VSP1_HGT: descr = "R-Car VSP1 2-D Histogram"; break;
ba300204
HV		 1251
1252 default:
1253 /* Compressed formats */
1254 flags = V4L2_FMT_FLAG_COMPRESSED;
1255 switch (fmt->pixelformat) {
1256 /* Max description length mask: descr = "0123456789012345678901234567890" */
1257 case V4L2_PIX_FMT_MJPEG: descr = "Motion-JPEG"; break;
1258 case V4L2_PIX_FMT_JPEG: descr = "JFIF JPEG"; break;
1259 case V4L2_PIX_FMT_DV: descr = "1394"; break;
1260 case V4L2_PIX_FMT_MPEG: descr = "MPEG-1/2/4"; break;
1261 case V4L2_PIX_FMT_H264: descr = "H.264"; break;
1262 case V4L2_PIX_FMT_H264_NO_SC: descr = "H.264 (No Start Codes)"; break;
1263 case V4L2_PIX_FMT_H264_MVC: descr = "H.264 MVC"; break;
1264 case V4L2_PIX_FMT_H263: descr = "H.263"; break;
1265 case V4L2_PIX_FMT_MPEG1: descr = "MPEG-1 ES"; break;
1266 case V4L2_PIX_FMT_MPEG2: descr = "MPEG-2 ES"; break;
1267 case V4L2_PIX_FMT_MPEG4: descr = "MPEG-4 part 2 ES"; break;
1268 case V4L2_PIX_FMT_XVID: descr = "Xvid"; break;
1269 case V4L2_PIX_FMT_VC1_ANNEX_G: descr = "VC-1 (SMPTE 412M Annex G)"; break;
1270 case V4L2_PIX_FMT_VC1_ANNEX_L: descr = "VC-1 (SMPTE 412M Annex L)"; break;
1271 case V4L2_PIX_FMT_VP8: descr = "VP8"; break;
fa14a564 1272 case V4L2_PIX_FMT_VP9: descr = "VP9"; break;
ba300204
HV		 1273 case V4L2_PIX_FMT_CPIA1: descr = "GSPCA CPiA YUV"; break;
1274 case V4L2_PIX_FMT_WNVA: descr = "WNVA"; break;
1275 case V4L2_PIX_FMT_SN9C10X: descr = "GSPCA SN9C10X"; break;
1276 case V4L2_PIX_FMT_PWC1: descr = "Raw Philips Webcam Type (Old)"; break;
1277 case V4L2_PIX_FMT_PWC2: descr = "Raw Philips Webcam Type (New)"; break;
1278 case V4L2_PIX_FMT_ET61X251: descr = "GSPCA ET61X251"; break;
1279 case V4L2_PIX_FMT_SPCA561: descr = "GSPCA SPCA561"; break;
1280 case V4L2_PIX_FMT_PAC207: descr = "GSPCA PAC207"; break;
1281 case V4L2_PIX_FMT_MR97310A: descr = "GSPCA MR97310A"; break;
1282 case V4L2_PIX_FMT_JL2005BCD: descr = "GSPCA JL2005BCD"; break;
1283 case V4L2_PIX_FMT_SN9C2028: descr = "GSPCA SN9C2028"; break;
1284 case V4L2_PIX_FMT_SQ905C: descr = "GSPCA SQ905C"; break;
1285 case V4L2_PIX_FMT_PJPG: descr = "GSPCA PJPG"; break;
1286 case V4L2_PIX_FMT_OV511: descr = "GSPCA OV511"; break;
1287 case V4L2_PIX_FMT_OV518: descr = "GSPCA OV518"; break;
1288 case V4L2_PIX_FMT_JPGL: descr = "JPEG Lite"; break;
1289 case V4L2_PIX_FMT_SE401: descr = "GSPCA SE401"; break;
1290 case V4L2_PIX_FMT_S5C_UYVY_JPG: descr = "S5C73MX interleaved UYVY/JPEG"; break;
d4de6634 1291 case V4L2_PIX_FMT_MT21C: descr = "Mediatek Compressed Format"; break;
ba300204
HV		 1292 default:
1293 WARN(1, "Unknown pixelformat 0x%08x\n", fmt->pixelformat);
1294 if (fmt->description[0])
1295 return;
1296 flags = 0;
1297 snprintf(fmt->description, sz, "%c%c%c%c%s",
1298 (char)(fmt->pixelformat & 0x7f),
1299 (char)((fmt->pixelformat >> 8) & 0x7f),
1300 (char)((fmt->pixelformat >> 16) & 0x7f),
1301 (char)((fmt->pixelformat >> 24) & 0x7f),
1302 (fmt->pixelformat & (1 << 31)) ? "-BE" : "");
1303 break;
1304 }
1305 }
1306
1307 if (descr)
1308 WARN_ON(strlcpy(fmt->description, descr, sz) >= sz);
1309 fmt->flags = flags;
1310}
1311
be6c64e4
HV		 1312static int v4l_enum_fmt(const struct v4l2_ioctl_ops *ops,
1313 struct file *file, void *fh, void *arg)
1314{
1315 struct v4l2_fmtdesc *p = arg;
c9457952
HV		 1316 int ret = check_fmt(file, p->type);
1317
1318 if (ret)
1319 return ret;
1320 ret = -EINVAL;
be6c64e4
HV		 1321
1322 switch (p->type) {
1323 case V4L2_BUF_TYPE_VIDEO_CAPTURE:
c9457952 1324 if (unlikely(!ops->vidioc_enum_fmt_vid_cap))
be6c64e4 1325 break;
ba300204
HV		 1326 ret = ops->vidioc_enum_fmt_vid_cap(file, fh, arg);
1327 break;
be6c64e4 1328 case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE:
c9457952 1329 if (unlikely(!ops->vidioc_enum_fmt_vid_cap_mplane))
be6c64e4 1330 break;
ba300204
HV		 1331 ret = ops->vidioc_enum_fmt_vid_cap_mplane(file, fh, arg);
1332 break;
be6c64e4 1333 case V4L2_BUF_TYPE_VIDEO_OVERLAY:
c9457952 1334 if (unlikely(!ops->vidioc_enum_fmt_vid_overlay))
be6c64e4 1335 break;
ba300204
HV		 1336 ret = ops->vidioc_enum_fmt_vid_overlay(file, fh, arg);
1337 break;
be6c64e4 1338 case V4L2_BUF_TYPE_VIDEO_OUTPUT:
c9457952 1339 if (unlikely(!ops->vidioc_enum_fmt_vid_out))
be6c64e4 1340 break;
ba300204
HV		 1341 ret = ops->vidioc_enum_fmt_vid_out(file, fh, arg);
1342 break;
be6c64e4 1343 case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE:
c9457952 1344 if (unlikely(!ops->vidioc_enum_fmt_vid_out_mplane))
be6c64e4 1345 break;
ba300204
HV		 1346 ret = ops->vidioc_enum_fmt_vid_out_mplane(file, fh, arg);
1347 break;
582c52cb 1348 case V4L2_BUF_TYPE_SDR_CAPTURE:
c9457952 1349 if (unlikely(!ops->vidioc_enum_fmt_sdr_cap))
582c52cb 1350 break;
ba300204
HV		 1351 ret = ops->vidioc_enum_fmt_sdr_cap(file, fh, arg);
1352 break;
9effc72f 1353 case V4L2_BUF_TYPE_SDR_OUTPUT:
c9457952 1354 if (unlikely(!ops->vidioc_enum_fmt_sdr_out))
9effc72f
AP		 1355 break;
1356 ret = ops->vidioc_enum_fmt_sdr_out(file, fh, arg);
1357 break;
fb9ffa6a 1358 case V4L2_BUF_TYPE_META_CAPTURE:
c9457952 1359 if (unlikely(!ops->vidioc_enum_fmt_meta_cap))
fb9ffa6a
LP		 1360 break;
1361 ret = ops->vidioc_enum_fmt_meta_cap(file, fh, arg);
1362 break;
be6c64e4 1363 }
ba300204
HV		 1364 if (ret == 0)
1365 v4l_fill_fmtdesc(p);
1366 return ret;
be6c64e4
HV		 1367}
1368
d4727d8d
VB		 1369static void v4l_pix_format_touch(struct v4l2_pix_format *p)
1370{
1371 /*
1372 * The v4l2_pix_format structure contains fields that make no sense for
1373 * touch. Set them to default values in this case.
1374 */
1375
1376 p->field = V4L2_FIELD_NONE;
1377 p->colorspace = V4L2_COLORSPACE_RAW;
1378 p->flags = 0;
1379 p->ycbcr_enc = 0;
1380 p->quantization = 0;
1381 p->xfer_func = 0;
1382}
1383
be6c64e4
HV		 1384static int v4l_g_fmt(const struct v4l2_ioctl_ops *ops,
1385 struct file *file, void *fh, void *arg)
1386{
1387 struct v4l2_format *p = arg;
d4727d8d 1388 struct video_device *vfd = video_devdata(file);
c9457952
HV		 1389 int ret = check_fmt(file, p->type);
1390
1391 if (ret)
1392 return ret;
d52e2381 1393
e5ce558a
HV		 1394 /*
1395 * fmt can't be cleared for these overlay types due to the 'clips'
1396 * 'clipcount' and 'bitmap' pointers in struct v4l2_window.
1397 * Those are provided by the user. So handle these two overlay types
1398 * first, and then just do a simple memset for the other types.
1399 */
1400 switch (p->type) {
1401 case V4L2_BUF_TYPE_VIDEO_OVERLAY:
1402 case V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY: {
4d1afa51 1403 struct v4l2_clip __user *clips = p->fmt.win.clips;
e5ce558a 1404 u32 clipcount = p->fmt.win.clipcount;
4d1afa51 1405 void __user *bitmap = p->fmt.win.bitmap;
e5ce558a
HV		 1406
1407 memset(&p->fmt, 0, sizeof(p->fmt));
1408 p->fmt.win.clips = clips;
1409 p->fmt.win.clipcount = clipcount;
1410 p->fmt.win.bitmap = bitmap;
1411 break;
1412 }
1413 default:
1414 memset(&p->fmt, 0, sizeof(p->fmt));
1415 break;
1416 }
1417
be6c64e4
HV		 1418 switch (p->type) {
1419 case V4L2_BUF_TYPE_VIDEO_CAPTURE:
c9457952 1420 if (unlikely(!ops->vidioc_g_fmt_vid_cap))
be6c64e4 1421 break;
48f2650a 1422 p->fmt.pix.priv = V4L2_PIX_FMT_PRIV_MAGIC;
d52e2381 1423 ret = ops->vidioc_g_fmt_vid_cap(file, fh, arg);
48f2650a 1424 /* just in case the driver zeroed it again */
d52e2381 1425 p->fmt.pix.priv = V4L2_PIX_FMT_PRIV_MAGIC;
d4727d8d
VB		 1426 if (vfd->vfl_type == VFL_TYPE_TOUCH)
1427 v4l_pix_format_touch(&p->fmt.pix);
d52e2381 1428 return ret;
be6c64e4 1429 case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE:
be6c64e4
HV		 1430 return ops->vidioc_g_fmt_vid_cap_mplane(file, fh, arg);
1431 case V4L2_BUF_TYPE_VIDEO_OVERLAY:
be6c64e4 1432 return ops->vidioc_g_fmt_vid_overlay(file, fh, arg);
4b20259f 1433 case V4L2_BUF_TYPE_VBI_CAPTURE:
4b20259f
HV		 1434 return ops->vidioc_g_fmt_vbi_cap(file, fh, arg);
1435 case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE:
4b20259f 1436 return ops->vidioc_g_fmt_sliced_vbi_cap(file, fh, arg);
be6c64e4 1437 case V4L2_BUF_TYPE_VIDEO_OUTPUT:
c9457952 1438 if (unlikely(!ops->vidioc_g_fmt_vid_out))
be6c64e4 1439 break;
48f2650a 1440 p->fmt.pix.priv = V4L2_PIX_FMT_PRIV_MAGIC;
d52e2381 1441 ret = ops->vidioc_g_fmt_vid_out(file, fh, arg);
48f2650a 1442 /* just in case the driver zeroed it again */
d52e2381
LP		 1443 p->fmt.pix.priv = V4L2_PIX_FMT_PRIV_MAGIC;
1444 return ret;
be6c64e4 1445 case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE:
be6c64e4
HV		 1446 return ops->vidioc_g_fmt_vid_out_mplane(file, fh, arg);
1447 case V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY:
be6c64e4 1448 return ops->vidioc_g_fmt_vid_out_overlay(file, fh, arg);
be6c64e4 1449 case V4L2_BUF_TYPE_VBI_OUTPUT:
be6c64e4 1450 return ops->vidioc_g_fmt_vbi_out(file, fh, arg);
be6c64e4 1451 case V4L2_BUF_TYPE_SLICED_VBI_OUTPUT:
be6c64e4 1452 return ops->vidioc_g_fmt_sliced_vbi_out(file, fh, arg);
582c52cb 1453 case V4L2_BUF_TYPE_SDR_CAPTURE:
582c52cb 1454 return ops->vidioc_g_fmt_sdr_cap(file, fh, arg);
9effc72f 1455 case V4L2_BUF_TYPE_SDR_OUTPUT:
9effc72f 1456 return ops->vidioc_g_fmt_sdr_out(file, fh, arg);
fb9ffa6a 1457 case V4L2_BUF_TYPE_META_CAPTURE:
fb9ffa6a 1458 return ops->vidioc_g_fmt_meta_cap(file, fh, arg);
be6c64e4
HV		 1459 }
1460 return -EINVAL;
1461}
1462
1463static int v4l_s_fmt(const struct v4l2_ioctl_ops *ops,
1464 struct file *file, void *fh, void *arg)
1465{
1466 struct v4l2_format *p = arg;
4b20259f 1467 struct video_device *vfd = video_devdata(file);
c9457952
HV		 1468 int ret = check_fmt(file, p->type);
1469
1470 if (ret)
1471 return ret;
be6c64e4 1472
77fa4e07
SK		 1473 ret = v4l_enable_media_source(vfd);
1474 if (ret)
1475 return ret;
d52e2381
LP		 1476 v4l_sanitize_format(p);
1477
be6c64e4
HV		 1478 switch (p->type) {
1479 case V4L2_BUF_TYPE_VIDEO_CAPTURE:
c9457952 1480 if (unlikely(!ops->vidioc_s_fmt_vid_cap))
be6c64e4
HV		 1481 break;
1482 CLEAR_AFTER_FIELD(p, fmt.pix);
48f2650a
HV		 1483 ret = ops->vidioc_s_fmt_vid_cap(file, fh, arg);
1484 /* just in case the driver zeroed it again */
1485 p->fmt.pix.priv = V4L2_PIX_FMT_PRIV_MAGIC;
c9457952 1486 if (vfd->vfl_type == VFL_TYPE_TOUCH)
b2fe22d0 1487 v4l_pix_format_touch(&p->fmt.pix);
48f2650a 1488 return ret;
be6c64e4 1489 case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE:
c9457952 1490 if (unlikely(!ops->vidioc_s_fmt_vid_cap_mplane))
be6c64e4 1491 break;
c49148e8 1492 CLEAR_AFTER_FIELD(p, fmt.pix_mp.xfer_func);
be6c64e4
HV		 1493 return ops->vidioc_s_fmt_vid_cap_mplane(file, fh, arg);
1494 case V4L2_BUF_TYPE_VIDEO_OVERLAY:
c9457952 1495 if (unlikely(!ops->vidioc_s_fmt_vid_overlay))
be6c64e4
HV		 1496 break;
1497 CLEAR_AFTER_FIELD(p, fmt.win);
1498 return ops->vidioc_s_fmt_vid_overlay(file, fh, arg);
4b20259f 1499 case V4L2_BUF_TYPE_VBI_CAPTURE:
c9457952 1500 if (unlikely(!ops->vidioc_s_fmt_vbi_cap))
4b20259f
HV		 1501 break;
1502 CLEAR_AFTER_FIELD(p, fmt.vbi);
1503 return ops->vidioc_s_fmt_vbi_cap(file, fh, arg);
1504 case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE:
c9457952 1505 if (unlikely(!ops->vidioc_s_fmt_sliced_vbi_cap))
4b20259f
HV		 1506 break;
1507 CLEAR_AFTER_FIELD(p, fmt.sliced);
1508 return ops->vidioc_s_fmt_sliced_vbi_cap(file, fh, arg);
be6c64e4 1509 case V4L2_BUF_TYPE_VIDEO_OUTPUT:
c9457952 1510 if (unlikely(!ops->vidioc_s_fmt_vid_out))
be6c64e4
HV		 1511 break;
1512 CLEAR_AFTER_FIELD(p, fmt.pix);
48f2650a
HV		 1513 ret = ops->vidioc_s_fmt_vid_out(file, fh, arg);
1514 /* just in case the driver zeroed it again */
1515 p->fmt.pix.priv = V4L2_PIX_FMT_PRIV_MAGIC;
1516 return ret;
be6c64e4 1517 case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE:
c9457952 1518 if (unlikely(!ops->vidioc_s_fmt_vid_out_mplane))
be6c64e4 1519 break;
c49148e8 1520 CLEAR_AFTER_FIELD(p, fmt.pix_mp.xfer_func);
be6c64e4
HV		 1521 return ops->vidioc_s_fmt_vid_out_mplane(file, fh, arg);
1522 case V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY:
c9457952 1523 if (unlikely(!ops->vidioc_s_fmt_vid_out_overlay))
be6c64e4
HV		 1524 break;
1525 CLEAR_AFTER_FIELD(p, fmt.win);
1526 return ops->vidioc_s_fmt_vid_out_overlay(file, fh, arg);
be6c64e4 1527 case V4L2_BUF_TYPE_VBI_OUTPUT:
c9457952 1528 if (unlikely(!ops->vidioc_s_fmt_vbi_out))
be6c64e4
HV		 1529 break;
1530 CLEAR_AFTER_FIELD(p, fmt.vbi);
1531 return ops->vidioc_s_fmt_vbi_out(file, fh, arg);
be6c64e4 1532 case V4L2_BUF_TYPE_SLICED_VBI_OUTPUT:
c9457952 1533 if (unlikely(!ops->vidioc_s_fmt_sliced_vbi_out))
be6c64e4
HV		 1534 break;
1535 CLEAR_AFTER_FIELD(p, fmt.sliced);
1536 return ops->vidioc_s_fmt_sliced_vbi_out(file, fh, arg);
582c52cb 1537 case V4L2_BUF_TYPE_SDR_CAPTURE:
c9457952 1538 if (unlikely(!ops->vidioc_s_fmt_sdr_cap))
582c52cb
AP		 1539 break;
1540 CLEAR_AFTER_FIELD(p, fmt.sdr);
1541 return ops->vidioc_s_fmt_sdr_cap(file, fh, arg);
9effc72f 1542 case V4L2_BUF_TYPE_SDR_OUTPUT:
c9457952 1543 if (unlikely(!ops->vidioc_s_fmt_sdr_out))
9effc72f
AP		 1544 break;
1545 CLEAR_AFTER_FIELD(p, fmt.sdr);
1546 return ops->vidioc_s_fmt_sdr_out(file, fh, arg);
fb9ffa6a 1547 case V4L2_BUF_TYPE_META_CAPTURE:
c9457952 1548 if (unlikely(!ops->vidioc_s_fmt_meta_cap))
fb9ffa6a
LP		 1549 break;
1550 CLEAR_AFTER_FIELD(p, fmt.meta);
1551 return ops->vidioc_s_fmt_meta_cap(file, fh, arg);
be6c64e4
HV		 1552 }
1553 return -EINVAL;
1554}
1555
1556static int v4l_try_fmt(const struct v4l2_ioctl_ops *ops,
1557 struct file *file, void *fh, void *arg)
1558{
1559 struct v4l2_format *p = arg;
c9457952
HV		 1560 int ret = check_fmt(file, p->type);
1561
1562 if (ret)
1563 return ret;
be6c64e4 1564
d52e2381
LP		 1565 v4l_sanitize_format(p);
1566
be6c64e4
HV		 1567 switch (p->type) {
1568 case V4L2_BUF_TYPE_VIDEO_CAPTURE:
c9457952 1569 if (unlikely(!ops->vidioc_try_fmt_vid_cap))
be6c64e4
HV		 1570 break;
1571 CLEAR_AFTER_FIELD(p, fmt.pix);
48f2650a
HV		 1572 ret = ops->vidioc_try_fmt_vid_cap(file, fh, arg);
1573 /* just in case the driver zeroed it again */
1574 p->fmt.pix.priv = V4L2_PIX_FMT_PRIV_MAGIC;
1575 return ret;
be6c64e4 1576 case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE:
c9457952 1577 if (unlikely(!ops->vidioc_try_fmt_vid_cap_mplane))
be6c64e4 1578 break;
c49148e8 1579 CLEAR_AFTER_FIELD(p, fmt.pix_mp.xfer_func);
be6c64e4
HV		 1580 return ops->vidioc_try_fmt_vid_cap_mplane(file, fh, arg);
1581 case V4L2_BUF_TYPE_VIDEO_OVERLAY:
c9457952 1582 if (unlikely(!ops->vidioc_try_fmt_vid_overlay))
be6c64e4
HV		 1583 break;
1584 CLEAR_AFTER_FIELD(p, fmt.win);
1585 return ops->vidioc_try_fmt_vid_overlay(file, fh, arg);
4b20259f 1586 case V4L2_BUF_TYPE_VBI_CAPTURE:
c9457952 1587 if (unlikely(!ops->vidioc_try_fmt_vbi_cap))
4b20259f
HV		 1588 break;
1589 CLEAR_AFTER_FIELD(p, fmt.vbi);
1590 return ops->vidioc_try_fmt_vbi_cap(file, fh, arg);
1591 case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE:
c9457952 1592 if (unlikely(!ops->vidioc_try_fmt_sliced_vbi_cap))
4b20259f
HV		 1593 break;
1594 CLEAR_AFTER_FIELD(p, fmt.sliced);
1595 return ops->vidioc_try_fmt_sliced_vbi_cap(file, fh, arg);
be6c64e4 1596 case V4L2_BUF_TYPE_VIDEO_OUTPUT:
c9457952 1597 if (unlikely(!ops->vidioc_try_fmt_vid_out))
be6c64e4
HV		 1598 break;
1599 CLEAR_AFTER_FIELD(p, fmt.pix);
48f2650a
HV		 1600 ret = ops->vidioc_try_fmt_vid_out(file, fh, arg);
1601 /* just in case the driver zeroed it again */
1602 p->fmt.pix.priv = V4L2_PIX_FMT_PRIV_MAGIC;
1603 return ret;
be6c64e4 1604 case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE:
c9457952 1605 if (unlikely(!ops->vidioc_try_fmt_vid_out_mplane))
be6c64e4 1606 break;
c49148e8 1607 CLEAR_AFTER_FIELD(p, fmt.pix_mp.xfer_func);
be6c64e4
HV		 1608 return ops->vidioc_try_fmt_vid_out_mplane(file, fh, arg);
1609 case V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY:
c9457952 1610 if (unlikely(!ops->vidioc_try_fmt_vid_out_overlay))
be6c64e4
HV		 1611 break;
1612 CLEAR_AFTER_FIELD(p, fmt.win);
1613 return ops->vidioc_try_fmt_vid_out_overlay(file, fh, arg);
be6c64e4 1614 case V4L2_BUF_TYPE_VBI_OUTPUT:
c9457952 1615 if (unlikely(!ops->vidioc_try_fmt_vbi_out))
be6c64e4
HV		 1616 break;
1617 CLEAR_AFTER_FIELD(p, fmt.vbi);
1618 return ops->vidioc_try_fmt_vbi_out(file, fh, arg);
be6c64e4 1619 case V4L2_BUF_TYPE_SLICED_VBI_OUTPUT:
c9457952 1620 if (unlikely(!ops->vidioc_try_fmt_sliced_vbi_out))
be6c64e4
HV		 1621 break;
1622 CLEAR_AFTER_FIELD(p, fmt.sliced);
1623 return ops->vidioc_try_fmt_sliced_vbi_out(file, fh, arg);
582c52cb 1624 case V4L2_BUF_TYPE_SDR_CAPTURE:
c9457952 1625 if (unlikely(!ops->vidioc_try_fmt_sdr_cap))
582c52cb
AP		 1626 break;
1627 CLEAR_AFTER_FIELD(p, fmt.sdr);
1628 return ops->vidioc_try_fmt_sdr_cap(file, fh, arg);
9effc72f 1629 case V4L2_BUF_TYPE_SDR_OUTPUT:
c9457952 1630 if (unlikely(!ops->vidioc_try_fmt_sdr_out))
9effc72f
AP		 1631 break;
1632 CLEAR_AFTER_FIELD(p, fmt.sdr);
1633 return ops->vidioc_try_fmt_sdr_out(file, fh, arg);
fb9ffa6a 1634 case V4L2_BUF_TYPE_META_CAPTURE:
c9457952 1635 if (unlikely(!ops->vidioc_try_fmt_meta_cap))
fb9ffa6a
LP		 1636 break;
1637 CLEAR_AFTER_FIELD(p, fmt.meta);
1638 return ops->vidioc_try_fmt_meta_cap(file, fh, arg);
be6c64e4
HV		 1639 }
1640 return -EINVAL;
1641}
1642
e325b244
HV		 1643static int v4l_streamon(const struct v4l2_ioctl_ops *ops,
1644 struct file *file, void *fh, void *arg)
1645{
1646 return ops->vidioc_streamon(file, fh, *(unsigned int *)arg);
1647}
1648
1649static int v4l_streamoff(const struct v4l2_ioctl_ops *ops,
1650 struct file *file, void *fh, void *arg)
1651{
1652 return ops->vidioc_streamoff(file, fh, *(unsigned int *)arg);
1653}
1654
4b1e2e4d
HV		 1655static int v4l_g_tuner(const struct v4l2_ioctl_ops *ops,
1656 struct file *file, void *fh, void *arg)
1657{
1658 struct video_device *vfd = video_devdata(file);
1659 struct v4l2_tuner *p = arg;
82b655bf 1660 int err;
4b1e2e4d
HV		 1661
1662 p->type = (vfd->vfl_type == VFL_TYPE_RADIO) ?
1663 V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV;
82b655bf
HV		 1664 err = ops->vidioc_g_tuner(file, fh, p);
1665 if (!err)
1666 p->capability |= V4L2_TUNER_CAP_FREQ_BANDS;
1667 return err;
4b1e2e4d
HV		 1668}
1669
1670static int v4l_s_tuner(const struct v4l2_ioctl_ops *ops,
1671 struct file *file, void *fh, void *arg)
1672{
1673 struct video_device *vfd = video_devdata(file);
1674 struct v4l2_tuner *p = arg;
77fa4e07 1675 int ret;
4b1e2e4d 1676
77fa4e07
SK		 1677 ret = v4l_enable_media_source(vfd);
1678 if (ret)
1679 return ret;
4b1e2e4d
HV		 1680 p->type = (vfd->vfl_type == VFL_TYPE_RADIO) ?
1681 V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV;
1682 return ops->vidioc_s_tuner(file, fh, p);
1683}
1684
82b655bf
HV		 1685static int v4l_g_modulator(const struct v4l2_ioctl_ops *ops,
1686 struct file *file, void *fh, void *arg)
1687{
4124a3c4 1688 struct video_device *vfd = video_devdata(file);
82b655bf
HV		 1689 struct v4l2_modulator *p = arg;
1690 int err;
1691
4124a3c4
AP		 1692 if (vfd->vfl_type == VFL_TYPE_RADIO)
1693 p->type = V4L2_TUNER_RADIO;
1694
82b655bf
HV		 1695 err = ops->vidioc_g_modulator(file, fh, p);
1696 if (!err)
1697 p->capability |= V4L2_TUNER_CAP_FREQ_BANDS;
1698 return err;
1699}
1700
4124a3c4
AP		 1701static int v4l_s_modulator(const struct v4l2_ioctl_ops *ops,
1702 struct file *file, void *fh, void *arg)
1703{
1704 struct video_device *vfd = video_devdata(file);
1705 struct v4l2_modulator *p = arg;
1706
1707 if (vfd->vfl_type == VFL_TYPE_RADIO)
1708 p->type = V4L2_TUNER_RADIO;
1709
1710 return ops->vidioc_s_modulator(file, fh, p);
1711}
1712
4b1e2e4d
HV		 1713static int v4l_g_frequency(const struct v4l2_ioctl_ops *ops,
1714 struct file *file, void *fh, void *arg)
1715{
1716 struct video_device *vfd = video_devdata(file);
1717 struct v4l2_frequency *p = arg;
1718
84099a28 1719 if (vfd->vfl_type == VFL_TYPE_SDR)
f3c3ecec 1720 p->type = V4L2_TUNER_SDR;
84099a28
AP		 1721 else
1722 p->type = (vfd->vfl_type == VFL_TYPE_RADIO) ?
1723 V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV;
4b1e2e4d
HV		 1724 return ops->vidioc_g_frequency(file, fh, p);
1725}
1726
1727static int v4l_s_frequency(const struct v4l2_ioctl_ops *ops,
1728 struct file *file, void *fh, void *arg)
1729{
1730 struct video_device *vfd = video_devdata(file);
b530a447 1731 const struct v4l2_frequency *p = arg;
4b1e2e4d 1732 enum v4l2_tuner_type type;
77fa4e07 1733 int ret;
4b1e2e4d 1734
77fa4e07
SK		 1735 ret = v4l_enable_media_source(vfd);
1736 if (ret)
1737 return ret;
84099a28 1738 if (vfd->vfl_type == VFL_TYPE_SDR) {
f3c3ecec 1739 if (p->type != V4L2_TUNER_SDR && p->type != V4L2_TUNER_RF)
84099a28
AP		 1740 return -EINVAL;
1741 } else {
1742 type = (vfd->vfl_type == VFL_TYPE_RADIO) ?
1743 V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV;
1744 if (type != p->type)
1745 return -EINVAL;
1746 }
4b1e2e4d
HV		 1747 return ops->vidioc_s_frequency(file, fh, p);
1748}
1749
1750static int v4l_enumstd(const struct v4l2_ioctl_ops *ops,
1751 struct file *file, void *fh, void *arg)
1752{
1753 struct video_device *vfd = video_devdata(file);
1754 struct v4l2_standard *p = arg;
1755 v4l2_std_id id = vfd->tvnorms, curr_id = 0;
1756 unsigned int index = p->index, i, j = 0;
1757 const char *descr = "";
1758
a5338190
HV		 1759 /* Return -ENODATA if the tvnorms for the current input
1760 or output is 0, meaning that it doesn't support this API. */
1761 if (id == 0)
1762 return -ENODATA;
1763
4b1e2e4d
HV		 1764 /* Return norm array in a canonical way */
1765 for (i = 0; i <= index && id; i++) {
1766 /* last std value in the standards array is 0, so this
1767 while always ends there since (id & 0) == 0. */
1768 while ((id & standards[j].std) != standards[j].std)
1769 j++;
1770 curr_id = standards[j].std;
1771 descr = standards[j].descr;
1772 j++;
1773 if (curr_id == 0)
1774 break;
1775 if (curr_id != V4L2_STD_PAL &&
1776 curr_id != V4L2_STD_SECAM &&
1777 curr_id != V4L2_STD_NTSC)
1778 id &= ~curr_id;
1779 }
1780 if (i <= index)
1781 return -EINVAL;
1782
1783 v4l2_video_std_construct(p, curr_id, descr);
1784 return 0;
1785}
1786
4b1e2e4d
HV		 1787static int v4l_s_std(const struct v4l2_ioctl_ops *ops,
1788 struct file *file, void *fh, void *arg)
1789{
1790 struct video_device *vfd = video_devdata(file);
314527ac 1791 v4l2_std_id id = *(v4l2_std_id *)arg, norm;
77fa4e07 1792 int ret;
4b1e2e4d 1793
77fa4e07
SK		 1794 ret = v4l_enable_media_source(vfd);
1795 if (ret)
1796 return ret;
314527ac 1797 norm = id & vfd->tvnorms;
4b1e2e4d
HV		 1798 if (vfd->tvnorms && !norm) /* Check if std is supported */
1799 return -EINVAL;
1800
1801 /* Calls the specific handler */
ca371575 1802 return ops->vidioc_s_std(file, fh, norm);
4b1e2e4d
HV		 1803}
1804
1805static int v4l_querystd(const struct v4l2_ioctl_ops *ops,
1806 struct file *file, void *fh, void *arg)
1807{
1808 struct video_device *vfd = video_devdata(file);
1809 v4l2_std_id *p = arg;
77fa4e07 1810 int ret;
4b1e2e4d 1811
77fa4e07
SK		 1812 ret = v4l_enable_media_source(vfd);
1813 if (ret)
1814 return ret;
4b1e2e4d 1815 /*
1a2c6866
HV		 1816 * If no signal is detected, then the driver should return
1817 * V4L2_STD_UNKNOWN. Otherwise it should return tvnorms with
1818 * any standards that do not apply removed.
1819 *
4b1e2e4d
HV		 1820 * This means that tuners, audio and video decoders can join
1821 * their efforts to improve the standards detection.
1822 */
1823 *p = vfd->tvnorms;
1824 return ops->vidioc_querystd(file, fh, arg);
1825}
1826
1827static int v4l_s_hw_freq_seek(const struct v4l2_ioctl_ops *ops,
1828 struct file *file, void *fh, void *arg)
1829{
1830 struct video_device *vfd = video_devdata(file);
1831 struct v4l2_hw_freq_seek *p = arg;
1832 enum v4l2_tuner_type type;
77fa4e07 1833 int ret;
4b1e2e4d 1834
77fa4e07
SK		 1835 ret = v4l_enable_media_source(vfd);
1836 if (ret)
1837 return ret;
84099a28
AP		 1838 /* s_hw_freq_seek is not supported for SDR for now */
1839 if (vfd->vfl_type == VFL_TYPE_SDR)
1840 return -EINVAL;
1841
4b1e2e4d
HV		 1842 type = (vfd->vfl_type == VFL_TYPE_RADIO) ?
1843 V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV;
1844 if (p->type != type)
1845 return -EINVAL;
1846 return ops->vidioc_s_hw_freq_seek(file, fh, p);
1847}
1848
737c097b
HV		 1849static int v4l_overlay(const struct v4l2_ioctl_ops *ops,
1850 struct file *file, void *fh, void *arg)
1851{
1852 return ops->vidioc_overlay(file, fh, *(unsigned int *)arg);
1853}
1854
eb3728ed
HV		 1855static int v4l_reqbufs(const struct v4l2_ioctl_ops *ops,
1856 struct file *file, void *fh, void *arg)
1857{
1858 struct v4l2_requestbuffers *p = arg;
4b20259f 1859 int ret = check_fmt(file, p->type);
eb3728ed
HV		 1860
1861 if (ret)
1862 return ret;
1863
633c98e5 1864 CLEAR_AFTER_FIELD(p, memory);
eb3728ed
HV		 1865
1866 return ops->vidioc_reqbufs(file, fh, p);
1867}
1868
1869static int v4l_querybuf(const struct v4l2_ioctl_ops *ops,
1870 struct file *file, void *fh, void *arg)
1871{
1872 struct v4l2_buffer *p = arg;
4b20259f 1873 int ret = check_fmt(file, p->type);
eb3728ed
HV		 1874
1875 return ret ? ret : ops->vidioc_querybuf(file, fh, p);
1876}
1877
1878static int v4l_qbuf(const struct v4l2_ioctl_ops *ops,
1879 struct file *file, void *fh, void *arg)
1880{
1881 struct v4l2_buffer *p = arg;
4b20259f 1882 int ret = check_fmt(file, p->type);
eb3728ed
HV		 1883
1884 return ret ? ret : ops->vidioc_qbuf(file, fh, p);
1885}
1886
1887static int v4l_dqbuf(const struct v4l2_ioctl_ops *ops,
1888 struct file *file, void *fh, void *arg)
1889{
1890 struct v4l2_buffer *p = arg;
4b20259f 1891 int ret = check_fmt(file, p->type);
eb3728ed
HV		 1892
1893 return ret ? ret : ops->vidioc_dqbuf(file, fh, p);
1894}
1895
1896static int v4l_create_bufs(const struct v4l2_ioctl_ops *ops,
1897 struct file *file, void *fh, void *arg)
1898{
1899 struct v4l2_create_buffers *create = arg;
4b20259f 1900 int ret = check_fmt(file, create->format.type);
eb3728ed 1901
d52e2381
LP		 1902 if (ret)
1903 return ret;
1904
5d351251
HV		 1905 CLEAR_AFTER_FIELD(create, format);
1906
d52e2381
LP		 1907 v4l_sanitize_format(&create->format);
1908
1909 ret = ops->vidioc_create_bufs(file, fh, create);
1910
1911 if (create->format.type == V4L2_BUF_TYPE_VIDEO_CAPTURE ||
1912 create->format.type == V4L2_BUF_TYPE_VIDEO_OUTPUT)
1913 create->format.fmt.pix.priv = V4L2_PIX_FMT_PRIV_MAGIC;
1914
1915 return ret;
eb3728ed
HV		 1916}
1917
1918static int v4l_prepare_buf(const struct v4l2_ioctl_ops *ops,
1919 struct file *file, void *fh, void *arg)
1920{
1921 struct v4l2_buffer *b = arg;
4b20259f 1922 int ret = check_fmt(file, b->type);
eb3728ed
HV		 1923
1924 return ret ? ret : ops->vidioc_prepare_buf(file, fh, b);
1925}
1926
1927static int v4l_g_parm(const struct v4l2_ioctl_ops *ops,
1928 struct file *file, void *fh, void *arg)
1929{
eb3728ed
HV		 1930 struct v4l2_streamparm *p = arg;
1931 v4l2_std_id std;
4b20259f 1932 int ret = check_fmt(file, p->type);
eb3728ed
HV		 1933
1934 if (ret)
1935 return ret;
1936 if (ops->vidioc_g_parm)
1937 return ops->vidioc_g_parm(file, fh, p);
eb3728ed
HV		 1938 if (p->type != V4L2_BUF_TYPE_VIDEO_CAPTURE &&
1939 p->type != V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE)
1940 return -EINVAL;
1941 p->parm.capture.readbuffers = 2;
ca371575 1942 ret = ops->vidioc_g_std(file, fh, &std);
eb3728ed 1943 if (ret == 0)
ca371575 1944 v4l2_video_std_frame_period(std, &p->parm.capture.timeperframe);
eb3728ed
HV		 1945 return ret;
1946}
1947
1948static int v4l_s_parm(const struct v4l2_ioctl_ops *ops,
1949 struct file *file, void *fh, void *arg)
1950{
1951 struct v4l2_streamparm *p = arg;
4b20259f 1952 int ret = check_fmt(file, p->type);
eb3728ed 1953
3bc27994
HV		 1954 if (ret)
1955 return ret;
1956
1957 /* Note: extendedmode is never used in drivers */
1958 if (V4L2_TYPE_IS_OUTPUT(p->type)) {
1959 memset(p->parm.output.reserved, 0,
1960 sizeof(p->parm.output.reserved));
1961 p->parm.output.extendedmode = 0;
1962 p->parm.output.outputmode &= V4L2_MODE_HIGHQUALITY;
1963 } else {
1964 memset(p->parm.capture.reserved, 0,
1965 sizeof(p->parm.capture.reserved));
1966 p->parm.capture.extendedmode = 0;
1967 p->parm.capture.capturemode &= V4L2_MODE_HIGHQUALITY;
1968 }
1969 return ops->vidioc_s_parm(file, fh, p);
eb3728ed
HV		 1970}
1971
efbceecd
HV		 1972static int v4l_queryctrl(const struct v4l2_ioctl_ops *ops,
1973 struct file *file, void *fh, void *arg)
1974{
1975 struct video_device *vfd = video_devdata(file);
1976 struct v4l2_queryctrl *p = arg;
7a3ed2d9
HV		 1977 struct v4l2_fh *vfh =
1978 test_bit(V4L2_FL_USES_V4L2_FH, &vfd->flags) ? fh : NULL;
efbceecd
HV		 1979
1980 if (vfh && vfh->ctrl_handler)
1981 return v4l2_queryctrl(vfh->ctrl_handler, p);
1982 if (vfd->ctrl_handler)
1983 return v4l2_queryctrl(vfd->ctrl_handler, p);
1984 if (ops->vidioc_queryctrl)
1985 return ops->vidioc_queryctrl(file, fh, p);
1986 return -ENOTTY;
1987}
1988
e6bee368
HV		 1989static int v4l_query_ext_ctrl(const struct v4l2_ioctl_ops *ops,
1990 struct file *file, void *fh, void *arg)
1991{
1992 struct video_device *vfd = video_devdata(file);
1993 struct v4l2_query_ext_ctrl *p = arg;
1994 struct v4l2_fh *vfh =
1995 test_bit(V4L2_FL_USES_V4L2_FH, &vfd->flags) ? fh : NULL;
1996
1997 if (vfh && vfh->ctrl_handler)
1998 return v4l2_query_ext_ctrl(vfh->ctrl_handler, p);
1999 if (vfd->ctrl_handler)
2000 return v4l2_query_ext_ctrl(vfd->ctrl_handler, p);
2001 if (ops->vidioc_query_ext_ctrl)
2002 return ops->vidioc_query_ext_ctrl(file, fh, p);
2003 return -ENOTTY;
2004}
2005
efbceecd
HV		 2006static int v4l_querymenu(const struct v4l2_ioctl_ops *ops,
2007 struct file *file, void *fh, void *arg)
2008{
2009 struct video_device *vfd = video_devdata(file);
2010 struct v4l2_querymenu *p = arg;
7a3ed2d9
HV		 2011 struct v4l2_fh *vfh =
2012 test_bit(V4L2_FL_USES_V4L2_FH, &vfd->flags) ? fh : NULL;
efbceecd
HV		 2013
2014 if (vfh && vfh->ctrl_handler)
2015 return v4l2_querymenu(vfh->ctrl_handler, p);
2016 if (vfd->ctrl_handler)
2017 return v4l2_querymenu(vfd->ctrl_handler, p);
2018 if (ops->vidioc_querymenu)
2019 return ops->vidioc_querymenu(file, fh, p);
2020 return -ENOTTY;
2021}
2022
2023static int v4l_g_ctrl(const struct v4l2_ioctl_ops *ops,
2024 struct file *file, void *fh, void *arg)
2025{
2026 struct video_device *vfd = video_devdata(file);
2027 struct v4l2_control *p = arg;
7a3ed2d9
HV		 2028 struct v4l2_fh *vfh =
2029 test_bit(V4L2_FL_USES_V4L2_FH, &vfd->flags) ? fh : NULL;
efbceecd
HV		 2030 struct v4l2_ext_controls ctrls;
2031 struct v4l2_ext_control ctrl;
2032
2033 if (vfh && vfh->ctrl_handler)
2034 return v4l2_g_ctrl(vfh->ctrl_handler, p);
2035 if (vfd->ctrl_handler)
2036 return v4l2_g_ctrl(vfd->ctrl_handler, p);
2037 if (ops->vidioc_g_ctrl)
2038 return ops->vidioc_g_ctrl(file, fh, p);
2039 if (ops->vidioc_g_ext_ctrls == NULL)
2040 return -ENOTTY;
2041
0f8017be 2042 ctrls.which = V4L2_CTRL_ID2WHICH(p->id);
efbceecd
HV		 2043 ctrls.count = 1;
2044 ctrls.controls = &ctrl;
2045 ctrl.id = p->id;
2046 ctrl.value = p->value;
2047 if (check_ext_ctrls(&ctrls, 1)) {
2048 int ret = ops->vidioc_g_ext_ctrls(file, fh, &ctrls);
2049
2050 if (ret == 0)
2051 p->value = ctrl.value;
2052 return ret;
2053 }
2054 return -EINVAL;
2055}
2056
2057static int v4l_s_ctrl(const struct v4l2_ioctl_ops *ops,
2058 struct file *file, void *fh, void *arg)
2059{
2060 struct video_device *vfd = video_devdata(file);
2061 struct v4l2_control *p = arg;
7a3ed2d9
HV		 2062 struct v4l2_fh *vfh =
2063 test_bit(V4L2_FL_USES_V4L2_FH, &vfd->flags) ? fh : NULL;
efbceecd
HV		 2064 struct v4l2_ext_controls ctrls;
2065 struct v4l2_ext_control ctrl;
2066
2067 if (vfh && vfh->ctrl_handler)
2068 return v4l2_s_ctrl(vfh, vfh->ctrl_handler, p);
2069 if (vfd->ctrl_handler)
2070 return v4l2_s_ctrl(NULL, vfd->ctrl_handler, p);
2071 if (ops->vidioc_s_ctrl)
2072 return ops->vidioc_s_ctrl(file, fh, p);
2073 if (ops->vidioc_s_ext_ctrls == NULL)
2074 return -ENOTTY;
2075
0f8017be 2076 ctrls.which = V4L2_CTRL_ID2WHICH(p->id);
efbceecd
HV		 2077 ctrls.count = 1;
2078 ctrls.controls = &ctrl;
2079 ctrl.id = p->id;
2080 ctrl.value = p->value;
2081 if (check_ext_ctrls(&ctrls, 1))
2082 return ops->vidioc_s_ext_ctrls(file, fh, &ctrls);
2083 return -EINVAL;
2084}
2085
2086static int v4l_g_ext_ctrls(const struct v4l2_ioctl_ops *ops,
2087 struct file *file, void *fh, void *arg)
2088{
2089 struct video_device *vfd = video_devdata(file);
2090 struct v4l2_ext_controls *p = arg;
7a3ed2d9
HV		 2091 struct v4l2_fh *vfh =
2092 test_bit(V4L2_FL_USES_V4L2_FH, &vfd->flags) ? fh : NULL;
efbceecd
HV		 2093
2094 p->error_idx = p->count;
2095 if (vfh && vfh->ctrl_handler)
2096 return v4l2_g_ext_ctrls(vfh->ctrl_handler, p);
2097 if (vfd->ctrl_handler)
2098 return v4l2_g_ext_ctrls(vfd->ctrl_handler, p);
2099 if (ops->vidioc_g_ext_ctrls == NULL)
2100 return -ENOTTY;
2101 return check_ext_ctrls(p, 0) ? ops->vidioc_g_ext_ctrls(file, fh, p) :
2102 -EINVAL;
2103}
2104
2105static int v4l_s_ext_ctrls(const struct v4l2_ioctl_ops *ops,
2106 struct file *file, void *fh, void *arg)
2107{
2108 struct video_device *vfd = video_devdata(file);
2109 struct v4l2_ext_controls *p = arg;
7a3ed2d9
HV		 2110 struct v4l2_fh *vfh =
2111 test_bit(V4L2_FL_USES_V4L2_FH, &vfd->flags) ? fh : NULL;
efbceecd
HV		 2112
2113 p->error_idx = p->count;
2114 if (vfh && vfh->ctrl_handler)
2115 return v4l2_s_ext_ctrls(vfh, vfh->ctrl_handler, p);
2116 if (vfd->ctrl_handler)
2117 return v4l2_s_ext_ctrls(NULL, vfd->ctrl_handler, p);
2118 if (ops->vidioc_s_ext_ctrls == NULL)
2119 return -ENOTTY;
2120 return check_ext_ctrls(p, 0) ? ops->vidioc_s_ext_ctrls(file, fh, p) :
2121 -EINVAL;
2122}
2123
2124static int v4l_try_ext_ctrls(const struct v4l2_ioctl_ops *ops,
2125 struct file *file, void *fh, void *arg)
2126{
2127 struct video_device *vfd = video_devdata(file);
2128 struct v4l2_ext_controls *p = arg;
7a3ed2d9
HV		 2129 struct v4l2_fh *vfh =
2130 test_bit(V4L2_FL_USES_V4L2_FH, &vfd->flags) ? fh : NULL;
efbceecd
HV		 2131
2132 p->error_idx = p->count;
2133 if (vfh && vfh->ctrl_handler)
2134 return v4l2_try_ext_ctrls(vfh->ctrl_handler, p);
2135 if (vfd->ctrl_handler)
2136 return v4l2_try_ext_ctrls(vfd->ctrl_handler, p);
2137 if (ops->vidioc_try_ext_ctrls == NULL)
2138 return -ENOTTY;
2139 return check_ext_ctrls(p, 0) ? ops->vidioc_try_ext_ctrls(file, fh, p) :
2140 -EINVAL;
2141}
2142
eaec420f
HV		 2143/*
2144 * The selection API specified originally that the _MPLANE buffer types
2145 * shouldn't be used. The reasons for this are lost in the mists of time
2146 * (or just really crappy memories). Regardless, this is really annoying
2147 * for userspace. So to keep things simple we map _MPLANE buffer types
2148 * to their 'regular' counterparts before calling the driver. And we
2149 * restore it afterwards. This way applications can use either buffer
2150 * type and drivers don't need to check for both.
2151 */
2152static int v4l_g_selection(const struct v4l2_ioctl_ops *ops,
2153 struct file *file, void *fh, void *arg)
2154{
2155 struct v4l2_selection *p = arg;
2156 u32 old_type = p->type;
2157 int ret;
2158
2159 if (p->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE)
2160 p->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
2161 else if (p->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE)
2162 p->type = V4L2_BUF_TYPE_VIDEO_OUTPUT;
2163 ret = ops->vidioc_g_selection(file, fh, p);
2164 p->type = old_type;
2165 return ret;
2166}
2167
2168static int v4l_s_selection(const struct v4l2_ioctl_ops *ops,
2169 struct file *file, void *fh, void *arg)
2170{
2171 struct v4l2_selection *p = arg;
2172 u32 old_type = p->type;
2173 int ret;
2174
2175 if (p->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE)
2176 p->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
2177 else if (p->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE)
2178 p->type = V4L2_BUF_TYPE_VIDEO_OUTPUT;
2179 ret = ops->vidioc_s_selection(file, fh, p);
2180 p->type = old_type;
2181 return ret;
2182}
2183
d84f2d94
HV		 2184static int v4l_g_crop(const struct v4l2_ioctl_ops *ops,
2185 struct file *file, void *fh, void *arg)
2186{
2187 struct v4l2_crop *p = arg;
2188 struct v4l2_selection s = {
2189 .type = p->type,
2190 };
2191 int ret;
2192
2193 if (ops->vidioc_g_crop)
2194 return ops->vidioc_g_crop(file, fh, p);
2195 /* simulate capture crop using selection api */
2196
2197 /* crop means compose for output devices */
2198 if (V4L2_TYPE_IS_OUTPUT(p->type))
2199 s.target = V4L2_SEL_TGT_COMPOSE_ACTIVE;
2200 else
2201 s.target = V4L2_SEL_TGT_CROP_ACTIVE;
2202
eaec420f 2203 ret = v4l_g_selection(ops, file, fh, &s);
d84f2d94
HV		 2204
2205 /* copying results to old structure on success */
2206 if (!ret)
2207 p->c = s.r;
2208 return ret;
2209}
2210
2211static int v4l_s_crop(const struct v4l2_ioctl_ops *ops,
2212 struct file *file, void *fh, void *arg)
2213{
2214 struct v4l2_crop *p = arg;
2215 struct v4l2_selection s = {
2216 .type = p->type,
2217 .r = p->c,
2218 };
2219
2220 if (ops->vidioc_s_crop)
2221 return ops->vidioc_s_crop(file, fh, p);
2222 /* simulate capture crop using selection api */
2223
2224 /* crop means compose for output devices */
2225 if (V4L2_TYPE_IS_OUTPUT(p->type))
2226 s.target = V4L2_SEL_TGT_COMPOSE_ACTIVE;
2227 else
2228 s.target = V4L2_SEL_TGT_CROP_ACTIVE;
2229
eaec420f 2230 return v4l_s_selection(ops, file, fh, &s);
d84f2d94
HV		 2231}
2232
2233static int v4l_cropcap(const struct v4l2_ioctl_ops *ops,
2234 struct file *file, void *fh, void *arg)
2235{
2236 struct v4l2_cropcap *p = arg;
95dd7b7e
HV		 2237 struct v4l2_selection s = { .type = p->type };
2238 int ret = 0;
d84f2d94 2239
95dd7b7e
HV		 2240 /* setting trivial pixelaspect */
2241 p->pixelaspect.numerator = 1;
2242 p->pixelaspect.denominator = 1;
d84f2d94 2243
95dd7b7e
HV		 2244 /*
2245 * The determine_valid_ioctls() call already should ensure
2246 * that this can never happen, but just in case...
2247 */
1ca830b1 2248 if (WARN_ON(!ops->vidioc_cropcap && !ops->vidioc_g_selection))
95dd7b7e 2249 return -ENOTTY;
d84f2d94 2250
95dd7b7e
HV		 2251 if (ops->vidioc_cropcap)
2252 ret = ops->vidioc_cropcap(file, fh, p);
d84f2d94 2253
95dd7b7e
HV		 2254 if (!ops->vidioc_g_selection)
2255 return ret;
d84f2d94 2256
95dd7b7e
HV		 2257 /*
2258 * Ignore ENOTTY or ENOIOCTLCMD error returns, just use the
2259 * square pixel aspect ratio in that case.
2260 */
2261 if (ret && ret != -ENOTTY && ret != -ENOIOCTLCMD)
2262 return ret;
d84f2d94 2263
95dd7b7e 2264 /* Use g_selection() to fill in the bounds and defrect rectangles */
9409945c 2265
95dd7b7e
HV		 2266 /* obtaining bounds */
2267 if (V4L2_TYPE_IS_OUTPUT(p->type))
2268 s.target = V4L2_SEL_TGT_COMPOSE_BOUNDS;
2269 else
2270 s.target = V4L2_SEL_TGT_CROP_BOUNDS;
2271
eaec420f 2272 ret = v4l_g_selection(ops, file, fh, &s);
95dd7b7e
HV		 2273 if (ret)
2274 return ret;
2275 p->bounds = s.r;
2276
2277 /* obtaining defrect */
2278 if (V4L2_TYPE_IS_OUTPUT(p->type))
2279 s.target = V4L2_SEL_TGT_COMPOSE_DEFAULT;
2280 else
2281 s.target = V4L2_SEL_TGT_CROP_DEFAULT;
2282
eaec420f 2283 ret = v4l_g_selection(ops, file, fh, &s);
95dd7b7e
HV		 2284 if (ret)
2285 return ret;
2286 p->defrect = s.r;
9409945c 2287
d84f2d94
HV		 2288 return 0;
2289}
2290
f16f77b0
HV		 2291static int v4l_log_status(const struct v4l2_ioctl_ops *ops,
2292 struct file *file, void *fh, void *arg)
2293{
2294 struct video_device *vfd = video_devdata(file);
2295 int ret;
2296
2297 if (vfd->v4l2_dev)
2298 pr_info("%s: ================= START STATUS =================\n",
2299 vfd->v4l2_dev->name);
2300 ret = ops->vidioc_log_status(file, fh);
2301 if (vfd->v4l2_dev)
2302 pr_info("%s: ================== END STATUS ==================\n",
2303 vfd->v4l2_dev->name);
2304 return ret;
2305}
2306
2307static int v4l_dbg_g_register(const struct v4l2_ioctl_ops *ops,
2308 struct file *file, void *fh, void *arg)
2309{
2310#ifdef CONFIG_VIDEO_ADV_DEBUG
2311 struct v4l2_dbg_register *p = arg;
79b0c640
HV		 2312 struct video_device *vfd = video_devdata(file);
2313 struct v4l2_subdev *sd;
2314 int idx = 0;
f16f77b0
HV		 2315
2316 if (!capable(CAP_SYS_ADMIN))
2317 return -EPERM;
3eef2510 2318 if (p->match.type == V4L2_CHIP_MATCH_SUBDEV) {
79b0c640
HV		 2319 if (vfd->v4l2_dev == NULL)
2320 return -EINVAL;
3eef2510
HV		 2321 v4l2_device_for_each_subdev(sd, vfd->v4l2_dev)
2322 if (p->match.addr == idx++)
79b0c640 2323 return v4l2_subdev_call(sd, core, g_register, p);
79b0c640
HV		 2324 return -EINVAL;
2325 }
191b79b0
HV		 2326 if (ops->vidioc_g_register && p->match.type == V4L2_CHIP_MATCH_BRIDGE &&
2327 (ops->vidioc_g_chip_info || p->match.addr == 0))
79b0c640
HV		 2328 return ops->vidioc_g_register(file, fh, p);
2329 return -EINVAL;
f16f77b0
HV		 2330#else
2331 return -ENOTTY;
2332#endif
2333}
2334
2335static int v4l_dbg_s_register(const struct v4l2_ioctl_ops *ops,
2336 struct file *file, void *fh, void *arg)
2337{
2338#ifdef CONFIG_VIDEO_ADV_DEBUG
977ba3b1 2339 const struct v4l2_dbg_register *p = arg;
79b0c640
HV		 2340 struct video_device *vfd = video_devdata(file);
2341 struct v4l2_subdev *sd;
2342 int idx = 0;
f16f77b0
HV		 2343
2344 if (!capable(CAP_SYS_ADMIN))
2345 return -EPERM;
3eef2510 2346 if (p->match.type == V4L2_CHIP_MATCH_SUBDEV) {
79b0c640
HV		 2347 if (vfd->v4l2_dev == NULL)
2348 return -EINVAL;
3eef2510
HV		 2349 v4l2_device_for_each_subdev(sd, vfd->v4l2_dev)
2350 if (p->match.addr == idx++)
79b0c640 2351 return v4l2_subdev_call(sd, core, s_register, p);
79b0c640
HV		 2352 return -EINVAL;
2353 }
191b79b0
HV		 2354 if (ops->vidioc_s_register && p->match.type == V4L2_CHIP_MATCH_BRIDGE &&
2355 (ops->vidioc_g_chip_info || p->match.addr == 0))
79b0c640
HV		 2356 return ops->vidioc_s_register(file, fh, p);
2357 return -EINVAL;
f16f77b0
HV		 2358#else
2359 return -ENOTTY;
2360#endif
2361}
2362
96b03d2a 2363static int v4l_dbg_g_chip_info(const struct v4l2_ioctl_ops *ops,
79b0c640
HV		 2364 struct file *file, void *fh, void *arg)
2365{
cd634f1b 2366#ifdef CONFIG_VIDEO_ADV_DEBUG
79b0c640 2367 struct video_device *vfd = video_devdata(file);
96b03d2a 2368 struct v4l2_dbg_chip_info *p = arg;
79b0c640
HV		 2369 struct v4l2_subdev *sd;
2370 int idx = 0;
2371
2372 switch (p->match.type) {
2373 case V4L2_CHIP_MATCH_BRIDGE:
79b0c640
HV		 2374 if (ops->vidioc_s_register)
2375 p->flags |= V4L2_CHIP_FL_WRITABLE;
2376 if (ops->vidioc_g_register)
2377 p->flags |= V4L2_CHIP_FL_READABLE;
1c1d86a1 2378 strlcpy(p->name, vfd->v4l2_dev->name, sizeof(p->name));
96b03d2a
HV		 2379 if (ops->vidioc_g_chip_info)
2380 return ops->vidioc_g_chip_info(file, fh, arg);
0f0fe4b9
HV		 2381 if (p->match.addr)
2382 return -EINVAL;
79b0c640
HV		 2383 return 0;
2384
3eef2510 2385 case V4L2_CHIP_MATCH_SUBDEV:
79b0c640
HV		 2386 if (vfd->v4l2_dev == NULL)
2387 break;
2388 v4l2_device_for_each_subdev(sd, vfd->v4l2_dev) {
3eef2510
HV		 2389 if (p->match.addr != idx++)
2390 continue;
2391 if (sd->ops->core && sd->ops->core->s_register)
2392 p->flags |= V4L2_CHIP_FL_WRITABLE;
2393 if (sd->ops->core && sd->ops->core->g_register)
2394 p->flags |= V4L2_CHIP_FL_READABLE;
2395 strlcpy(p->name, sd->name, sizeof(p->name));
2396 return 0;
79b0c640
HV		 2397 }
2398 break;
2399 }
2400 return -EINVAL;
cd634f1b
HV		 2401#else
2402 return -ENOTTY;
2403#endif
79b0c640
HV		 2404}
2405
458aa4a6
HV		 2406static int v4l_dqevent(const struct v4l2_ioctl_ops *ops,
2407 struct file *file, void *fh, void *arg)
2408{
2409 return v4l2_event_dequeue(fh, arg, file->f_flags & O_NONBLOCK);
2410}
2411
2412static int v4l_subscribe_event(const struct v4l2_ioctl_ops *ops,
2413 struct file *file, void *fh, void *arg)
2414{
2415 return ops->vidioc_subscribe_event(fh, arg);
2416}
2417
2418static int v4l_unsubscribe_event(const struct v4l2_ioctl_ops *ops,
2419 struct file *file, void *fh, void *arg)
2420{
2421 return ops->vidioc_unsubscribe_event(fh, arg);
2422}
2423
2424static int v4l_g_sliced_vbi_cap(const struct v4l2_ioctl_ops *ops,
2425 struct file *file, void *fh, void *arg)
2426{
2427 struct v4l2_sliced_vbi_cap *p = arg;
4b20259f
HV		 2428 int ret = check_fmt(file, p->type);
2429
2430 if (ret)
2431 return ret;
458aa4a6
HV		 2432
2433 /* Clear up to type, everything after type is zeroed already */
2434 memset(p, 0, offsetof(struct v4l2_sliced_vbi_cap, type));
2435
2436 return ops->vidioc_g_sliced_vbi_cap(file, fh, p);
2437}
2438
82b655bf
HV		 2439static int v4l_enum_freq_bands(const struct v4l2_ioctl_ops *ops,
2440 struct file *file, void *fh, void *arg)
2441{
2442 struct video_device *vfd = video_devdata(file);
2443 struct v4l2_frequency_band *p = arg;
2444 enum v4l2_tuner_type type;
2445 int err;
2446
84099a28 2447 if (vfd->vfl_type == VFL_TYPE_SDR) {
f3c3ecec 2448 if (p->type != V4L2_TUNER_SDR && p->type != V4L2_TUNER_RF)
84099a28
AP		 2449 return -EINVAL;
2450 type = p->type;
2451 } else {
2452 type = (vfd->vfl_type == VFL_TYPE_RADIO) ?
2453 V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV;
2454 if (type != p->type)
2455 return -EINVAL;
2456 }
a7f404af
HV		 2457 if (ops->vidioc_enum_freq_bands) {
2458 err = ops->vidioc_enum_freq_bands(file, fh, p);
2459 if (err != -ENOTTY)
2460 return err;
2461 }
73f35418 2462 if (is_valid_ioctl(vfd, VIDIOC_G_TUNER)) {
82b655bf
HV		 2463 struct v4l2_tuner t = {
2464 .index = p->tuner,
2465 .type = type,
2466 };
2467
aa4d9b53
HV		 2468 if (p->index)
2469 return -EINVAL;
82b655bf
HV		 2470 err = ops->vidioc_g_tuner(file, fh, &t);
2471 if (err)
2472 return err;
2473 p->capability = t.capability | V4L2_TUNER_CAP_FREQ_BANDS;
2474 p->rangelow = t.rangelow;
2475 p->rangehigh = t.rangehigh;
2476 p->modulation = (type == V4L2_TUNER_RADIO) ?
2477 V4L2_BAND_MODULATION_FM : V4L2_BAND_MODULATION_VSB;
2478 return 0;
2479 }
73f35418 2480 if (is_valid_ioctl(vfd, VIDIOC_G_MODULATOR)) {
82b655bf
HV		 2481 struct v4l2_modulator m = {
2482 .index = p->tuner,
2483 };
2484
2485 if (type != V4L2_TUNER_RADIO)
2486 return -EINVAL;
aa4d9b53
HV		 2487 if (p->index)
2488 return -EINVAL;
82b655bf
HV		 2489 err = ops->vidioc_g_modulator(file, fh, &m);
2490 if (err)
2491 return err;
2492 p->capability = m.capability | V4L2_TUNER_CAP_FREQ_BANDS;
2493 p->rangelow = m.rangelow;
2494 p->rangehigh = m.rangehigh;
2495 p->modulation = (type == V4L2_TUNER_RADIO) ?
2496 V4L2_BAND_MODULATION_FM : V4L2_BAND_MODULATION_VSB;
2497 return 0;
2498 }
2499 return -ENOTTY;
2500}
2501
4839e6c2
HV		 2502struct v4l2_ioctl_info {
2503 unsigned int ioctl;
27cd2aba 2504 u32 flags;
4839e6c2 2505 const char * const name;
86748f35
HV		 2506 union {
2507 u32 offset;
2508 int (*func)(const struct v4l2_ioctl_ops *ops,
2509 struct file *file, void *fh, void *p);
26ddcbcc 2510 } u;
86748f35 2511 void (*debug)(const void *arg, bool write_only);
4839e6c2
HV		 2512};
2513
2514/* This control needs a priority check */
043f77ed 2515#define INFO_FL_PRIO (1 << 0)
4839e6c2 2516/* This control can be valid if the filehandle passes a control handler. */
043f77ed 2517#define INFO_FL_CTRL (1 << 1)
86748f35 2518/* This is a standard ioctl, no need for special code */
043f77ed 2519#define INFO_FL_STD (1 << 2)
86748f35 2520/* This is ioctl has its own function */
043f77ed 2521#define INFO_FL_FUNC (1 << 3)
5a5adf6b 2522/* Queuing ioctl */
043f77ed
HV		 2523#define INFO_FL_QUEUE (1 << 4)
2524/* Always copy back result, even on error */
2525#define INFO_FL_ALWAYS_COPY (1 << 5)
27cd2aba
HV		 2526/* Zero struct from after the field to the end */
2527#define INFO_FL_CLEAR(v4l2_struct, field) \
2528 ((offsetof(struct v4l2_struct, field) + \
2529 sizeof(((struct v4l2_struct *)0)->field)) << 16)
043f77ed 2530#define INFO_FL_CLEAR_MASK (_IOC_SIZEMASK << 16)
4839e6c2 2531
86748f35
HV		 2532#define IOCTL_INFO_STD(_ioctl, _vidioc, _debug, _flags) \
2533 [_IOC_NR(_ioctl)] = { \
2534 .ioctl = _ioctl, \
2535 .flags = _flags | INFO_FL_STD, \
2536 .name = #_ioctl, \
26ddcbcc 2537 .u.offset = offsetof(struct v4l2_ioctl_ops, _vidioc), \
86748f35
HV		 2538 .debug = _debug, \
2539 }
2540
2541#define IOCTL_INFO_FNC(_ioctl, _func, _debug, _flags) \
2542 [_IOC_NR(_ioctl)] = { \
2543 .ioctl = _ioctl, \
2544 .flags = _flags | INFO_FL_FUNC, \
2545 .name = #_ioctl, \
26ddcbcc 2546 .u.func = _func, \
86748f35
HV		 2547 .debug = _debug, \
2548 }
2549
4839e6c2 2550static struct v4l2_ioctl_info v4l2_ioctls[] = {
59076122 2551 IOCTL_INFO_FNC(VIDIOC_QUERYCAP, v4l_querycap, v4l_print_querycap, 0),
be6c64e4 2552 IOCTL_INFO_FNC(VIDIOC_ENUM_FMT, v4l_enum_fmt, v4l_print_fmtdesc, INFO_FL_CLEAR(v4l2_fmtdesc, type)),
e5ce558a 2553 IOCTL_INFO_FNC(VIDIOC_G_FMT, v4l_g_fmt, v4l_print_format, 0),
be6c64e4 2554 IOCTL_INFO_FNC(VIDIOC_S_FMT, v4l_s_fmt, v4l_print_format, INFO_FL_PRIO),
5a5adf6b
HV		 2555 IOCTL_INFO_FNC(VIDIOC_REQBUFS, v4l_reqbufs, v4l_print_requestbuffers, INFO_FL_PRIO | INFO_FL_QUEUE),
2556 IOCTL_INFO_FNC(VIDIOC_QUERYBUF, v4l_querybuf, v4l_print_buffer, INFO_FL_QUEUE | INFO_FL_CLEAR(v4l2_buffer, length)),
be6c64e4
HV		 2557 IOCTL_INFO_STD(VIDIOC_G_FBUF, vidioc_g_fbuf, v4l_print_framebuffer, 0),
2558 IOCTL_INFO_STD(VIDIOC_S_FBUF, vidioc_s_fbuf, v4l_print_framebuffer, INFO_FL_PRIO),
737c097b 2559 IOCTL_INFO_FNC(VIDIOC_OVERLAY, v4l_overlay, v4l_print_u32, INFO_FL_PRIO),
5a5adf6b 2560 IOCTL_INFO_FNC(VIDIOC_QBUF, v4l_qbuf, v4l_print_buffer, INFO_FL_QUEUE),
b799d09a 2561 IOCTL_INFO_STD(VIDIOC_EXPBUF, vidioc_expbuf, v4l_print_exportbuffer, INFO_FL_QUEUE | INFO_FL_CLEAR(v4l2_exportbuffer, flags)),
5a5adf6b
HV		 2562 IOCTL_INFO_FNC(VIDIOC_DQBUF, v4l_dqbuf, v4l_print_buffer, INFO_FL_QUEUE),
2563 IOCTL_INFO_FNC(VIDIOC_STREAMON, v4l_streamon, v4l_print_buftype, INFO_FL_PRIO | INFO_FL_QUEUE),
2564 IOCTL_INFO_FNC(VIDIOC_STREAMOFF, v4l_streamoff, v4l_print_buftype, INFO_FL_PRIO | INFO_FL_QUEUE),
eb3728ed
HV		 2565 IOCTL_INFO_FNC(VIDIOC_G_PARM, v4l_g_parm, v4l_print_streamparm, INFO_FL_CLEAR(v4l2_streamparm, type)),
2566 IOCTL_INFO_FNC(VIDIOC_S_PARM, v4l_s_parm, v4l_print_streamparm, INFO_FL_PRIO),
ca371575 2567 IOCTL_INFO_STD(VIDIOC_G_STD, vidioc_g_std, v4l_print_std, 0),
4b1e2e4d
HV		 2568 IOCTL_INFO_FNC(VIDIOC_S_STD, v4l_s_std, v4l_print_std, INFO_FL_PRIO),
2569 IOCTL_INFO_FNC(VIDIOC_ENUMSTD, v4l_enumstd, v4l_print_standard, INFO_FL_CLEAR(v4l2_standard, index)),
59076122 2570 IOCTL_INFO_FNC(VIDIOC_ENUMINPUT, v4l_enuminput, v4l_print_enuminput, INFO_FL_CLEAR(v4l2_input, index)),
efbceecd
HV		 2571 IOCTL_INFO_FNC(VIDIOC_G_CTRL, v4l_g_ctrl, v4l_print_control, INFO_FL_CTRL | INFO_FL_CLEAR(v4l2_control, id)),
2572 IOCTL_INFO_FNC(VIDIOC_S_CTRL, v4l_s_ctrl, v4l_print_control, INFO_FL_PRIO | INFO_FL_CTRL),
4b1e2e4d
HV		 2573 IOCTL_INFO_FNC(VIDIOC_G_TUNER, v4l_g_tuner, v4l_print_tuner, INFO_FL_CLEAR(v4l2_tuner, index)),
2574 IOCTL_INFO_FNC(VIDIOC_S_TUNER, v4l_s_tuner, v4l_print_tuner, INFO_FL_PRIO),
59076122
HV		 2575 IOCTL_INFO_STD(VIDIOC_G_AUDIO, vidioc_g_audio, v4l_print_audio, 0),
2576 IOCTL_INFO_STD(VIDIOC_S_AUDIO, vidioc_s_audio, v4l_print_audio, INFO_FL_PRIO),
efbceecd
HV		 2577 IOCTL_INFO_FNC(VIDIOC_QUERYCTRL, v4l_queryctrl, v4l_print_queryctrl, INFO_FL_CTRL | INFO_FL_CLEAR(v4l2_queryctrl, id)),
2578 IOCTL_INFO_FNC(VIDIOC_QUERYMENU, v4l_querymenu, v4l_print_querymenu, INFO_FL_CTRL | INFO_FL_CLEAR(v4l2_querymenu, index)),
59076122
HV		 2579 IOCTL_INFO_STD(VIDIOC_G_INPUT, vidioc_g_input, v4l_print_u32, 0),
2580 IOCTL_INFO_FNC(VIDIOC_S_INPUT, v4l_s_input, v4l_print_u32, INFO_FL_PRIO),
043f77ed
HV		 2581 IOCTL_INFO_STD(VIDIOC_G_EDID, vidioc_g_edid, v4l_print_edid, INFO_FL_ALWAYS_COPY),
2582 IOCTL_INFO_STD(VIDIOC_S_EDID, vidioc_s_edid, v4l_print_edid, INFO_FL_PRIO | INFO_FL_ALWAYS_COPY),
59076122
HV		 2583 IOCTL_INFO_STD(VIDIOC_G_OUTPUT, vidioc_g_output, v4l_print_u32, 0),
2584 IOCTL_INFO_FNC(VIDIOC_S_OUTPUT, v4l_s_output, v4l_print_u32, INFO_FL_PRIO),
2585 IOCTL_INFO_FNC(VIDIOC_ENUMOUTPUT, v4l_enumoutput, v4l_print_enumoutput, INFO_FL_CLEAR(v4l2_output, index)),
2586 IOCTL_INFO_STD(VIDIOC_G_AUDOUT, vidioc_g_audout, v4l_print_audioout, 0),
2587 IOCTL_INFO_STD(VIDIOC_S_AUDOUT, vidioc_s_audout, v4l_print_audioout, INFO_FL_PRIO),
82b655bf 2588 IOCTL_INFO_FNC(VIDIOC_G_MODULATOR, v4l_g_modulator, v4l_print_modulator, INFO_FL_CLEAR(v4l2_modulator, index)),
4124a3c4 2589 IOCTL_INFO_FNC(VIDIOC_S_MODULATOR, v4l_s_modulator, v4l_print_modulator, INFO_FL_PRIO),
4b1e2e4d
HV		 2590 IOCTL_INFO_FNC(VIDIOC_G_FREQUENCY, v4l_g_frequency, v4l_print_frequency, INFO_FL_CLEAR(v4l2_frequency, tuner)),
2591 IOCTL_INFO_FNC(VIDIOC_S_FREQUENCY, v4l_s_frequency, v4l_print_frequency, INFO_FL_PRIO),
d84f2d94
HV		 2592 IOCTL_INFO_FNC(VIDIOC_CROPCAP, v4l_cropcap, v4l_print_cropcap, INFO_FL_CLEAR(v4l2_cropcap, type)),
2593 IOCTL_INFO_FNC(VIDIOC_G_CROP, v4l_g_crop, v4l_print_crop, INFO_FL_CLEAR(v4l2_crop, type)),
2594 IOCTL_INFO_FNC(VIDIOC_S_CROP, v4l_s_crop, v4l_print_crop, INFO_FL_PRIO),
eaec420f
HV		 2595 IOCTL_INFO_FNC(VIDIOC_G_SELECTION, v4l_g_selection, v4l_print_selection, INFO_FL_CLEAR(v4l2_selection, r)),
2596 IOCTL_INFO_FNC(VIDIOC_S_SELECTION, v4l_s_selection, v4l_print_selection, INFO_FL_PRIO | INFO_FL_CLEAR(v4l2_selection, r)),
d806f2df
HV		 2597 IOCTL_INFO_STD(VIDIOC_G_JPEGCOMP, vidioc_g_jpegcomp, v4l_print_jpegcompression, 0),
2598 IOCTL_INFO_STD(VIDIOC_S_JPEGCOMP, vidioc_s_jpegcomp, v4l_print_jpegcompression, INFO_FL_PRIO),
4b1e2e4d 2599 IOCTL_INFO_FNC(VIDIOC_QUERYSTD, v4l_querystd, v4l_print_std, 0),
be6c64e4 2600 IOCTL_INFO_FNC(VIDIOC_TRY_FMT, v4l_try_fmt, v4l_print_format, 0),
59076122
HV		 2601 IOCTL_INFO_STD(VIDIOC_ENUMAUDIO, vidioc_enumaudio, v4l_print_audio, INFO_FL_CLEAR(v4l2_audio, index)),
2602 IOCTL_INFO_STD(VIDIOC_ENUMAUDOUT, vidioc_enumaudout, v4l_print_audioout, INFO_FL_CLEAR(v4l2_audioout, index)),
d0547cba
HV		 2603 IOCTL_INFO_FNC(VIDIOC_G_PRIORITY, v4l_g_priority, v4l_print_u32, 0),
2604 IOCTL_INFO_FNC(VIDIOC_S_PRIORITY, v4l_s_priority, v4l_print_u32, INFO_FL_PRIO),
458aa4a6 2605 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 2606 IOCTL_INFO_FNC(VIDIOC_LOG_STATUS, v4l_log_status, v4l_print_newline, 0),
efbceecd
HV		 2607 IOCTL_INFO_FNC(VIDIOC_G_EXT_CTRLS, v4l_g_ext_ctrls, v4l_print_ext_controls, INFO_FL_CTRL),
2608 IOCTL_INFO_FNC(VIDIOC_S_EXT_CTRLS, v4l_s_ext_ctrls, v4l_print_ext_controls, INFO_FL_PRIO | INFO_FL_CTRL),
9bc31633 2609 IOCTL_INFO_FNC(VIDIOC_TRY_EXT_CTRLS, v4l_try_ext_ctrls, v4l_print_ext_controls, INFO_FL_CTRL),
458aa4a6
HV		 2610 IOCTL_INFO_STD(VIDIOC_ENUM_FRAMESIZES, vidioc_enum_framesizes, v4l_print_frmsizeenum, INFO_FL_CLEAR(v4l2_frmsizeenum, pixel_format)),
2611 IOCTL_INFO_STD(VIDIOC_ENUM_FRAMEINTERVALS, vidioc_enum_frameintervals, v4l_print_frmivalenum, INFO_FL_CLEAR(v4l2_frmivalenum, height)),
d806f2df
HV		 2612 IOCTL_INFO_STD(VIDIOC_G_ENC_INDEX, vidioc_g_enc_index, v4l_print_enc_idx, 0),
2613 IOCTL_INFO_STD(VIDIOC_ENCODER_CMD, vidioc_encoder_cmd, v4l_print_encoder_cmd, INFO_FL_PRIO | INFO_FL_CLEAR(v4l2_encoder_cmd, flags)),
2614 IOCTL_INFO_STD(VIDIOC_TRY_ENCODER_CMD, vidioc_try_encoder_cmd, v4l_print_encoder_cmd, INFO_FL_CLEAR(v4l2_encoder_cmd, flags)),
2615 IOCTL_INFO_STD(VIDIOC_DECODER_CMD, vidioc_decoder_cmd, v4l_print_decoder_cmd, INFO_FL_PRIO),
2616 IOCTL_INFO_STD(VIDIOC_TRY_DECODER_CMD, vidioc_try_decoder_cmd, v4l_print_decoder_cmd, 0),
f16f77b0
HV		 2617 IOCTL_INFO_FNC(VIDIOC_DBG_S_REGISTER, v4l_dbg_s_register, v4l_print_dbg_register, 0),
2618 IOCTL_INFO_FNC(VIDIOC_DBG_G_REGISTER, v4l_dbg_g_register, v4l_print_dbg_register, 0),
4b1e2e4d 2619 IOCTL_INFO_FNC(VIDIOC_S_HW_FREQ_SEEK, v4l_s_hw_freq_seek, v4l_print_hw_freq_seek, INFO_FL_PRIO),
f932af80 2620 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 2621 IOCTL_INFO_STD(VIDIOC_G_DV_TIMINGS, vidioc_g_dv_timings, v4l_print_dv_timings, 0),
458aa4a6
HV		 2622 IOCTL_INFO_FNC(VIDIOC_DQEVENT, v4l_dqevent, v4l_print_event, 0),
2623 IOCTL_INFO_FNC(VIDIOC_SUBSCRIBE_EVENT, v4l_subscribe_event, v4l_print_event_subscription, 0),
2624 IOCTL_INFO_FNC(VIDIOC_UNSUBSCRIBE_EVENT, v4l_unsubscribe_event, v4l_print_event_subscription, 0),
5a5adf6b
HV		 2625 IOCTL_INFO_FNC(VIDIOC_CREATE_BUFS, v4l_create_bufs, v4l_print_create_buffers, INFO_FL_PRIO | INFO_FL_QUEUE),
2626 IOCTL_INFO_FNC(VIDIOC_PREPARE_BUF, v4l_prepare_buf, v4l_print_buffer, INFO_FL_QUEUE),
f932af80 2627 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 2628 IOCTL_INFO_STD(VIDIOC_QUERY_DV_TIMINGS, vidioc_query_dv_timings, v4l_print_dv_timings, INFO_FL_ALWAYS_COPY),
a1acb8f9 2629 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 2630 IOCTL_INFO_FNC(VIDIOC_ENUM_FREQ_BANDS, v4l_enum_freq_bands, v4l_print_freq_band, 0),
96b03d2a 2631 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 2632 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		 2633};
2634#define V4L2_IOCTLS ARRAY_SIZE(v4l2_ioctls)
2635
2636bool v4l2_is_known_ioctl(unsigned int cmd)
2637{
2638 if (_IOC_NR(cmd) >= V4L2_IOCTLS)
2639 return false;
2640 return v4l2_ioctls[_IOC_NR(cmd)].ioctl == cmd;
2641}
2642
5a5adf6b
HV		 2643struct mutex *v4l2_ioctl_get_lock(struct video_device *vdev, unsigned cmd)
2644{
2645 if (_IOC_NR(cmd) >= V4L2_IOCTLS)
2646 return vdev->lock;
2647 if (test_bit(_IOC_NR(cmd), vdev->disable_locking))
2648 return NULL;
2649 if (vdev->queue && vdev->queue->lock &&
2650 (v4l2_ioctls[_IOC_NR(cmd)].flags & INFO_FL_QUEUE))
2651 return vdev->queue->lock;
2652 return vdev->lock;
2653}
2654
4839e6c2
HV		 2655/* Common ioctl debug function. This function can be used by
2656 external ioctl messages as well as internal V4L ioctl */
4a085168 2657void v4l_printk_ioctl(const char *prefix, unsigned int cmd)
4839e6c2 2658{
86748f35 2659 const char *dir, *type;
4839e6c2 2660
4a085168
HV		 2661 if (prefix)
2662 printk(KERN_DEBUG "%s: ", prefix);
2663
4839e6c2
HV		 2664 switch (_IOC_TYPE(cmd)) {
2665 case 'd':
2666 type = "v4l2_int";
2667 break;
2668 case 'V':
2669 if (_IOC_NR(cmd) >= V4L2_IOCTLS) {
2670 type = "v4l2";
2671 break;
2672 }
86748f35 2673 pr_cont("%s", v4l2_ioctls[_IOC_NR(cmd)].name);
4839e6c2
HV		 2674 return;
2675 default:
2676 type = "unknown";
86748f35 2677 break;
4839e6c2
HV		 2678 }
2679
2680 switch (_IOC_DIR(cmd)) {
2681 case _IOC_NONE: dir = "--"; break;
2682 case _IOC_READ: dir = "r-"; break;
2683 case _IOC_WRITE: dir = "-w"; break;
2684 case _IOC_READ | _IOC_WRITE: dir = "rw"; break;
2685 default: dir = "*ERR*"; break;
2686 }
86748f35 2687 pr_cont("%s ioctl '%c', dir=%s, #%d (0x%08x)",
4839e6c2
HV		 2688 type, _IOC_TYPE(cmd), dir, _IOC_NR(cmd), cmd);
2689}
2690EXPORT_SYMBOL(v4l_printk_ioctl);
2691
069b7479 2692static long __video_do_ioctl(struct file *file,
35ea11ff
HV		 2693 unsigned int cmd, void *arg)
2694{
2695 struct video_device *vfd = video_devdata(file);
a399810c 2696 const struct v4l2_ioctl_ops *ops = vfd->ioctl_ops;
86748f35
HV		 2697 bool write_only = false;
2698 struct v4l2_ioctl_info default_info;
2699 const struct v4l2_ioctl_info *info;
d5fbf32f 2700 void *fh = file->private_data;
99cd47bc 2701 struct v4l2_fh *vfh = NULL;
17028cdb 2702 int dev_debug = vfd->dev_debug;
9190d191 2703 long ret = -ENOTTY;
35ea11ff 2704
6a717883 2705 if (ops == NULL) {
4a085168
HV		 2706 pr_warn("%s: has no ioctl_ops.\n",
2707 video_device_node_name(vfd));
9190d191 2708 return ret;
6a717883
HV		 2709 }
2710
b7284bb0 2711 if (test_bit(V4L2_FL_USES_V4L2_FH, &vfd->flags))
99cd47bc
HV		 2712 vfh = file->private_data;
2713
48ea0be0 2714 if (v4l2_is_known_ioctl(cmd)) {
86748f35 2715 info = &v4l2_ioctls[_IOC_NR(cmd)];
48ea0be0 2716
2e5e435f 2717 if (!test_bit(_IOC_NR(cmd), vfd->valid_ioctls) &&
48ea0be0 2718 !((info->flags & INFO_FL_CTRL) && vfh && vfh->ctrl_handler))
86748f35 2719 goto done;
4b902fec 2720
b7284bb0 2721 if (vfh && (info->flags & INFO_FL_PRIO)) {
4b902fec
HV		 2722 ret = v4l2_prio_check(vfd->prio, vfh->prio);
2723 if (ret)
86748f35 2724 goto done;
4b902fec 2725 }
86748f35
HV		 2726 } else {
2727 default_info.ioctl = cmd;
2728 default_info.flags = 0;
f18d8e07 2729 default_info.debug = v4l_print_default;
86748f35 2730 info = &default_info;
48ea0be0
HV		 2731 }
2732
86748f35 2733 write_only = _IOC_DIR(cmd) == _IOC_WRITE;
86748f35
HV		 2734 if (info->flags & INFO_FL_STD) {
2735 typedef int (*vidioc_op)(struct file *file, void *fh, void *p);
2736 const void *p = vfd->ioctl_ops;
26ddcbcc 2737 const vidioc_op *vidioc = p + info->u.offset;
86748f35
HV		 2738
2739 ret = (*vidioc)(file, fh, arg);
86748f35 2740 } else if (info->flags & INFO_FL_FUNC) {
26ddcbcc 2741 ret = info->u.func(ops, file, fh, arg);
f18d8e07
HV		 2742 } else if (!ops->vidioc_default) {
2743 ret = -ENOTTY;
2744 } else {
2745 ret = ops->vidioc_default(file, fh,
b7284bb0 2746 vfh ? v4l2_prio_check(vfd->prio, vfh->prio) >= 0 : 0,
f18d8e07 2747 cmd, arg);
48ea0be0 2748 }
99cd47bc 2749
86748f35 2750done:
17028cdb
HV		 2751 if (dev_debug & (V4L2_DEV_DEBUG_IOCTL | V4L2_DEV_DEBUG_IOCTL_ARG)) {
2752 if (!(dev_debug & V4L2_DEV_DEBUG_STREAMING) &&
2753 (cmd == VIDIOC_QBUF || cmd == VIDIOC_DQBUF))
2754 return ret;
2755
4a085168 2756 v4l_printk_ioctl(video_device_node_name(vfd), cmd);
86748f35 2757 if (ret < 0)
505d04bd 2758 pr_cont(": error %ld", ret);
17028cdb 2759 if (!(dev_debug & V4L2_DEV_DEBUG_IOCTL_ARG))
86748f35 2760 pr_cont("\n");
86748f35
HV		 2761 else if (_IOC_DIR(cmd) == _IOC_NONE)
2762 info->debug(arg, write_only);
2763 else {
2764 pr_cont(": ");
2765 info->debug(arg, write_only);
35ea11ff
HV		 2766 }
2767 }
2768
2769 return ret;
2770}
2771
d14e6d76 2772static int check_array_args(unsigned int cmd, void *parg, size_t *array_size,
ba2d35c1 2773 void __user **user_ptr, void ***kernel_ptr)
d14e6d76
PO		 2774{
2775 int ret = 0;
2776
2777 switch (cmd) {
96b1a702 2778 case VIDIOC_PREPARE_BUF:
d14e6d76
PO		 2779 case VIDIOC_QUERYBUF:
2780 case VIDIOC_QBUF:
2781 case VIDIOC_DQBUF: {
2782 struct v4l2_buffer *buf = parg;
2783
2784 if (V4L2_TYPE_IS_MULTIPLANAR(buf->type) && buf->length > 0) {
2785 if (buf->length > VIDEO_MAX_PLANES) {
2786 ret = -EINVAL;
2787 break;
2788 }
2789 *user_ptr = (void __user *)buf->m.planes;
ba2d35c1 2790 *kernel_ptr = (void **)&buf->m.planes;
d14e6d76
PO		 2791 *array_size = sizeof(struct v4l2_plane) * buf->length;
2792 ret = 1;
2793 }
2794 break;
2795 }
2796
dd519bb3
HV		 2797 case VIDIOC_G_EDID:
2798 case VIDIOC_S_EDID: {
2799 struct v4l2_edid *edid = parg;
ed45ce2c
HV		 2800
2801 if (edid->blocks) {
1b8b10cc
HV		 2802 if (edid->blocks > 256) {
2803 ret = -EINVAL;
2804 break;
2805 }
ed45ce2c 2806 *user_ptr = (void __user *)edid->edid;
ba2d35c1 2807 *kernel_ptr = (void **)&edid->edid;
ed45ce2c
HV		 2808 *array_size = edid->blocks * 128;
2809 ret = 1;
2810 }
2811 break;
2812 }
2813
d14e6d76
PO		 2814 case VIDIOC_S_EXT_CTRLS:
2815 case VIDIOC_G_EXT_CTRLS:
2816 case VIDIOC_TRY_EXT_CTRLS: {
2817 struct v4l2_ext_controls *ctrls = parg;
2818
2819 if (ctrls->count != 0) {
6c06108b
DC		 2820 if (ctrls->count > V4L2_CID_MAX_CTRLS) {
2821 ret = -EINVAL;
2822 break;
2823 }
d14e6d76 2824 *user_ptr = (void __user *)ctrls->controls;
ba2d35c1 2825 *kernel_ptr = (void **)&ctrls->controls;
d14e6d76
PO		 2826 *array_size = sizeof(struct v4l2_ext_control)
2827 * ctrls->count;
2828 ret = 1;
2829 }
2830 break;
2831 }
2832 }
2833
2834 return ret;
2835}
2836
fc0a8079
LP		 2837long
2838video_usercopy(struct file *file, unsigned int cmd, unsigned long arg,
2839 v4l2_kioctl func)
35ea11ff
HV		 2840{
2841 char sbuf[128];
2842 void *mbuf = NULL;
1d94aa36 2843 void *parg = (void *)arg;
069b7479 2844 long err = -EINVAL;
d14e6d76 2845 bool has_array_args;
043f77ed 2846 bool always_copy = false;
d14e6d76 2847 size_t array_size = 0;
35ea11ff 2848 void __user *user_ptr = NULL;
d14e6d76 2849 void **kernel_ptr = NULL;
35ea11ff 2850
35ea11ff 2851 /* Copy arguments into temp kernel buffer */
337f9d20 2852 if (_IOC_DIR(cmd) != _IOC_NONE) {
35ea11ff
HV		 2853 if (_IOC_SIZE(cmd) <= sizeof(sbuf)) {
2854 parg = sbuf;
2855 } else {
2856 /* too big to allocate from stack */
758d90e1 2857 mbuf = kvmalloc(_IOC_SIZE(cmd), GFP_KERNEL);
35ea11ff
HV		 2858 if (NULL == mbuf)
2859 return -ENOMEM;
2860 parg = mbuf;
2861 }
2862
2863 err = -EFAULT;
19c96e4b 2864 if (_IOC_DIR(cmd) & _IOC_WRITE) {
27cd2aba
HV		 2865 unsigned int n = _IOC_SIZE(cmd);
2866
2867 /*
2868 * In some cases, only a few fields are used as input,
2869 * i.e. when the app sets "index" and then the driver
2870 * fills in the rest of the structure for the thing
2871 * with that index. We only need to copy up the first
2872 * non-input field.
2873 */
2874 if (v4l2_is_known_ioctl(cmd)) {
2875 u32 flags = v4l2_ioctls[_IOC_NR(cmd)].flags;
043f77ed 2876
27cd2aba
HV		 2877 if (flags & INFO_FL_CLEAR_MASK)
2878 n = (flags & INFO_FL_CLEAR_MASK) >> 16;
043f77ed 2879 always_copy = flags & INFO_FL_ALWAYS_COPY;
27cd2aba 2880 }
19c96e4b
TP		 2881
2882 if (copy_from_user(parg, (void __user *)arg, n))
35ea11ff 2883 goto out;
19c96e4b
TP		 2884
2885 /* zero out anything we don't copy from userspace */
2886 if (n < _IOC_SIZE(cmd))
2887 memset((u8 *)parg + n, 0, _IOC_SIZE(cmd) - n);
337f9d20
TP		 2888 } else {
2889 /* read-only ioctl */
2890 memset(parg, 0, _IOC_SIZE(cmd));
19c96e4b 2891 }
35ea11ff
HV		 2892 }
2893
d14e6d76
PO		 2894 err = check_array_args(cmd, parg, &array_size, &user_ptr, &kernel_ptr);
2895 if (err < 0)
2896 goto out;
2897 has_array_args = err;
35ea11ff 2898
d14e6d76
PO		 2899 if (has_array_args) {
2900 /*
2901 * When adding new types of array args, make sure that the
2902 * parent argument to ioctl (which contains the pointer to the
2903 * array) fits into sbuf (so that mbuf will still remain
2904 * unused up to here).
2905 */
758d90e1 2906 mbuf = kvmalloc(array_size, GFP_KERNEL);
d14e6d76
PO		 2907 err = -ENOMEM;
2908 if (NULL == mbuf)
2909 goto out_array_args;
2910 err = -EFAULT;
2911 if (copy_from_user(mbuf, user_ptr, array_size))
2912 goto out_array_args;
2913 *kernel_ptr = mbuf;
35ea11ff
HV		 2914 }
2915
2916 /* Handles IOCTL */
fc0a8079 2917 err = func(file, cmd, parg);
5a4c78df 2918 if (err == -ENOTTY || err == -ENOIOCTLCMD) {
02bbb814 2919 err = -ENOTTY;
5a4c78df
HV		 2920 goto out;
2921 }
2922
aa32f4c0
HV		 2923 if (err == 0) {
2924 if (cmd == VIDIOC_DQBUF)
2925 trace_v4l2_dqbuf(video_devdata(file)->minor, parg);
2926 else if (cmd == VIDIOC_QBUF)
2927 trace_v4l2_qbuf(video_devdata(file)->minor, parg);
2928 }
35ea11ff 2929
d14e6d76 2930 if (has_array_args) {
ba2d35c1 2931 *kernel_ptr = (void __force *)user_ptr;
d14e6d76 2932 if (copy_to_user(user_ptr, mbuf, array_size))
35ea11ff 2933 err = -EFAULT;
d14e6d76 2934 goto out_array_args;
35ea11ff 2935 }
043f77ed
HV		 2936 /*
2937 * Some ioctls can return an error, but still have valid
2938 * results that must be returned.
2939 */
2940 if (err < 0 && !always_copy)
35ea11ff
HV		 2941 goto out;
2942
d14e6d76 2943out_array_args:
35ea11ff
HV		 2944 /* Copy results into user buffer */
2945 switch (_IOC_DIR(cmd)) {
2946 case _IOC_READ:
2947 case (_IOC_WRITE | _IOC_READ):
2948 if (copy_to_user((void __user *)arg, parg, _IOC_SIZE(cmd)))
2949 err = -EFAULT;
2950 break;
2951 }
2952
2953out:
758d90e1 2954 kvfree(mbuf);
35ea11ff
HV		 2955 return err;
2956}
fc0a8079
LP		 2957EXPORT_SYMBOL(video_usercopy);
2958
2959long video_ioctl2(struct file *file,
2960 unsigned int cmd, unsigned long arg)
2961{
2962 return video_usercopy(file, cmd, arg, __video_do_ioctl);
2963}
8a522c91 2964EXPORT_SYMBOL(video_ioctl2);
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