]> git.proxmox.com Git - mirror_ubuntu-bionic-kernel.git/blame - drivers/media/v4l2-core/v4l2-ioctl.c
projects / mirror_ubuntu-bionic-kernel.git / blame
? search:
summary | shortlog | log | commit | commitdiff | tree
blob | blame (incremental) | history | HEAD
[media] pxa_camera: Fix a call with an uninitialized device pointer
[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
15#include <linux/module.h>
5a0e3ad6 16#include <linux/slab.h>
35ea11ff
HV		 17#include <linux/types.h>
18#include <linux/kernel.h>
ae6db515 19#include <linux/version.h>
35ea11ff 20
35ea11ff
HV		 21#include <linux/videodev2.h>
22
35ea11ff
HV		 23#include <media/v4l2-common.h>
24#include <media/v4l2-ioctl.h>
11bbc1ca 25#include <media/v4l2-ctrls.h>
d3d7c963
SA		 26#include <media/v4l2-fh.h>
27#include <media/v4l2-event.h>
99cd47bc 28#include <media/v4l2-device.h>
c139990e 29#include <media/videobuf2-v4l2.h>
77fa4e07 30#include <media/v4l2-mc.h>
35ea11ff 31
aa32f4c0
HV		 32#include <trace/events/v4l2.h>
33
25985edc 34/* Zero out the end of the struct pointed to by p. Everything after, but
7ecc0cf9
TP		 35 * not including, the specified field is cleared. */
36#define CLEAR_AFTER_FIELD(p, field) \
37 memset((u8 *)(p) + offsetof(typeof(*(p)), field) + sizeof((p)->field), \
38 0, sizeof(*(p)) - offsetof(typeof(*(p)), field) - sizeof((p)->field))
39
73f35418
HV		 40#define is_valid_ioctl(vfd, cmd) test_bit(_IOC_NR(cmd), (vfd)->valid_ioctls)
41
35ea11ff
HV		 42struct std_descr {
43 v4l2_std_id std;
44 const char *descr;
45};
46
47static const struct std_descr standards[] = {
48 { V4L2_STD_NTSC, "NTSC" },
49 { V4L2_STD_NTSC_M, "NTSC-M" },
50 { V4L2_STD_NTSC_M_JP, "NTSC-M-JP" },
51 { V4L2_STD_NTSC_M_KR, "NTSC-M-KR" },
52 { V4L2_STD_NTSC_443, "NTSC-443" },
53 { V4L2_STD_PAL, "PAL" },
54 { V4L2_STD_PAL_BG, "PAL-BG" },
55 { V4L2_STD_PAL_B, "PAL-B" },
56 { V4L2_STD_PAL_B1, "PAL-B1" },
57 { V4L2_STD_PAL_G, "PAL-G" },
58 { V4L2_STD_PAL_H, "PAL-H" },
59 { V4L2_STD_PAL_I, "PAL-I" },
60 { V4L2_STD_PAL_DK, "PAL-DK" },
61 { V4L2_STD_PAL_D, "PAL-D" },
62 { V4L2_STD_PAL_D1, "PAL-D1" },
63 { V4L2_STD_PAL_K, "PAL-K" },
64 { V4L2_STD_PAL_M, "PAL-M" },
65 { V4L2_STD_PAL_N, "PAL-N" },
66 { V4L2_STD_PAL_Nc, "PAL-Nc" },
67 { V4L2_STD_PAL_60, "PAL-60" },
68 { V4L2_STD_SECAM, "SECAM" },
69 { V4L2_STD_SECAM_B, "SECAM-B" },
70 { V4L2_STD_SECAM_G, "SECAM-G" },
71 { V4L2_STD_SECAM_H, "SECAM-H" },
72 { V4L2_STD_SECAM_DK, "SECAM-DK" },
73 { V4L2_STD_SECAM_D, "SECAM-D" },
74 { V4L2_STD_SECAM_K, "SECAM-K" },
75 { V4L2_STD_SECAM_K1, "SECAM-K1" },
76 { V4L2_STD_SECAM_L, "SECAM-L" },
77 { V4L2_STD_SECAM_LC, "SECAM-Lc" },
78 { 0, "Unknown" }
79};
80
81/* video4linux standard ID conversion to standard name
82 */
83const char *v4l2_norm_to_name(v4l2_std_id id)
84{
85 u32 myid = id;
86 int i;
87
88 /* HACK: ppc32 architecture doesn't have __ucmpdi2 function to handle
89 64 bit comparations. So, on that architecture, with some gcc
90 variants, compilation fails. Currently, the max value is 30bit wide.
91 */
92 BUG_ON(myid != id);
93
94 for (i = 0; standards[i].std; i++)
95 if (myid == standards[i].std)
96 break;
97 return standards[i].descr;
98}
99EXPORT_SYMBOL(v4l2_norm_to_name);
100
51f0b8d5
TP		 101/* Returns frame period for the given standard */
102void v4l2_video_std_frame_period(int id, struct v4l2_fract *frameperiod)
103{
104 if (id & V4L2_STD_525_60) {
105 frameperiod->numerator = 1001;
106 frameperiod->denominator = 30000;
107 } else {
108 frameperiod->numerator = 1;
109 frameperiod->denominator = 25;
110 }
111}
112EXPORT_SYMBOL(v4l2_video_std_frame_period);
113
35ea11ff
HV		 114/* Fill in the fields of a v4l2_standard structure according to the
115 'id' and 'transmission' parameters. Returns negative on error. */
116int v4l2_video_std_construct(struct v4l2_standard *vs,
117 int id, const char *name)
118{
51f0b8d5
TP		 119 vs->id = id;
120 v4l2_video_std_frame_period(id, &vs->frameperiod);
121 vs->framelines = (id & V4L2_STD_525_60) ? 525 : 625;
35ea11ff
HV		 122 strlcpy(vs->name, name, sizeof(vs->name));
123 return 0;
124}
125EXPORT_SYMBOL(v4l2_video_std_construct);
126
127/* ----------------------------------------------------------------- */
128/* some arrays for pretty-printing debug messages of enum types */
129
130const char *v4l2_field_names[] = {
131 [V4L2_FIELD_ANY] = "any",
132 [V4L2_FIELD_NONE] = "none",
133 [V4L2_FIELD_TOP] = "top",
134 [V4L2_FIELD_BOTTOM] = "bottom",
135 [V4L2_FIELD_INTERLACED] = "interlaced",
136 [V4L2_FIELD_SEQ_TB] = "seq-tb",
137 [V4L2_FIELD_SEQ_BT] = "seq-bt",
138 [V4L2_FIELD_ALTERNATE] = "alternate",
139 [V4L2_FIELD_INTERLACED_TB] = "interlaced-tb",
140 [V4L2_FIELD_INTERLACED_BT] = "interlaced-bt",
141};
142EXPORT_SYMBOL(v4l2_field_names);
143
144const char *v4l2_type_names[] = {
839aa56d 145 [0] = "0",
35ea11ff
HV		 146 [V4L2_BUF_TYPE_VIDEO_CAPTURE] = "vid-cap",
147 [V4L2_BUF_TYPE_VIDEO_OVERLAY] = "vid-overlay",
148 [V4L2_BUF_TYPE_VIDEO_OUTPUT] = "vid-out",
149 [V4L2_BUF_TYPE_VBI_CAPTURE] = "vbi-cap",
150 [V4L2_BUF_TYPE_VBI_OUTPUT] = "vbi-out",
151 [V4L2_BUF_TYPE_SLICED_VBI_CAPTURE] = "sliced-vbi-cap",
152 [V4L2_BUF_TYPE_SLICED_VBI_OUTPUT] = "sliced-vbi-out",
153 [V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY] = "vid-out-overlay",
f8f3914c
PO		 154 [V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE] = "vid-cap-mplane",
155 [V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE] = "vid-out-mplane",
6f3073b8 156 [V4L2_BUF_TYPE_SDR_CAPTURE] = "sdr-cap",
9effc72f 157 [V4L2_BUF_TYPE_SDR_OUTPUT] = "sdr-out",
fb9ffa6a 158 [V4L2_BUF_TYPE_META_CAPTURE] = "meta-cap",
35ea11ff
HV		 159};
160EXPORT_SYMBOL(v4l2_type_names);
161
162static const char *v4l2_memory_names[] = {
163 [V4L2_MEMORY_MMAP] = "mmap",
164 [V4L2_MEMORY_USERPTR] = "userptr",
165 [V4L2_MEMORY_OVERLAY] = "overlay",
051c7788 166 [V4L2_MEMORY_DMABUF] = "dmabuf",
35ea11ff
HV		 167};
168
d9246240 169#define prt_names(a, arr) (((unsigned)(a)) < ARRAY_SIZE(arr) ? arr[a] : "unknown")
35ea11ff
HV		 170
171/* ------------------------------------------------------------------ */
172/* debug help functions */
8ab75e3e 173
59076122
HV		 174static void v4l_print_querycap(const void *arg, bool write_only)
175{
176 const struct v4l2_capability *p = arg;
177
8720427c 178 pr_cont("driver=%.*s, card=%.*s, bus=%.*s, version=0x%08x, capabilities=0x%08x, device_caps=0x%08x\n",
27d5a87c
HV		 179 (int)sizeof(p->driver), p->driver,
180 (int)sizeof(p->card), p->card,
181 (int)sizeof(p->bus_info), p->bus_info,
59076122
HV		 182 p->version, p->capabilities, p->device_caps);
183}
184
185static void v4l_print_enuminput(const void *arg, bool write_only)
186{
187 const struct v4l2_input *p = arg;
188
8720427c 189 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		 190 p->index, (int)sizeof(p->name), p->name, p->type, p->audioset,
191 p->tuner, (unsigned long long)p->std, p->status,
192 p->capabilities);
59076122
HV		 193}
194
195static void v4l_print_enumoutput(const void *arg, bool write_only)
196{
197 const struct v4l2_output *p = arg;
198
8720427c 199 pr_cont("index=%u, name=%.*s, type=%u, audioset=0x%x, modulator=%u, std=0x%08Lx, capabilities=0x%x\n",
27d5a87c
HV		 200 p->index, (int)sizeof(p->name), p->name, p->type, p->audioset,
201 p->modulator, (unsigned long long)p->std, p->capabilities);
59076122
HV		 202}
203
204static void v4l_print_audio(const void *arg, bool write_only)
205{
206 const struct v4l2_audio *p = arg;
207
208 if (write_only)
209 pr_cont("index=%u, mode=0x%x\n", p->index, p->mode);
210 else
27d5a87c
HV		 211 pr_cont("index=%u, name=%.*s, capability=0x%x, mode=0x%x\n",
212 p->index, (int)sizeof(p->name), p->name,
213 p->capability, p->mode);
59076122
HV		 214}
215
216static void v4l_print_audioout(const void *arg, bool write_only)
217{
218 const struct v4l2_audioout *p = arg;
219
220 if (write_only)
221 pr_cont("index=%u\n", p->index);
222 else
27d5a87c
HV		 223 pr_cont("index=%u, name=%.*s, capability=0x%x, mode=0x%x\n",
224 p->index, (int)sizeof(p->name), p->name,
225 p->capability, p->mode);
59076122
HV		 226}
227
be6c64e4
HV		 228static void v4l_print_fmtdesc(const void *arg, bool write_only)
229{
230 const struct v4l2_fmtdesc *p = arg;
231
27d5a87c 232 pr_cont("index=%u, type=%s, flags=0x%x, pixelformat=%c%c%c%c, description='%.*s'\n",
be6c64e4
HV		 233 p->index, prt_names(p->type, v4l2_type_names),
234 p->flags, (p->pixelformat & 0xff),
235 (p->pixelformat >> 8) & 0xff,
236 (p->pixelformat >> 16) & 0xff,
237 (p->pixelformat >> 24) & 0xff,
27d5a87c 238 (int)sizeof(p->description), p->description);
be6c64e4
HV		 239}
240
241static void v4l_print_format(const void *arg, bool write_only)
242{
243 const struct v4l2_format *p = arg;
244 const struct v4l2_pix_format *pix;
245 const struct v4l2_pix_format_mplane *mp;
246 const struct v4l2_vbi_format *vbi;
247 const struct v4l2_sliced_vbi_format *sliced;
248 const struct v4l2_window *win;
87185c95 249 const struct v4l2_sdr_format *sdr;
fb9ffa6a 250 const struct v4l2_meta_format *meta;
be6c64e4
HV		 251 unsigned i;
252
253 pr_cont("type=%s", prt_names(p->type, v4l2_type_names));
254 switch (p->type) {
255 case V4L2_BUF_TYPE_VIDEO_CAPTURE:
256 case V4L2_BUF_TYPE_VIDEO_OUTPUT:
257 pix = &p->fmt.pix;
8720427c 258 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		 259 pix->width, pix->height,
260 (pix->pixelformat & 0xff),
261 (pix->pixelformat >> 8) & 0xff,
262 (pix->pixelformat >> 16) & 0xff,
263 (pix->pixelformat >> 24) & 0xff,
264 prt_names(pix->field, v4l2_field_names),
265 pix->bytesperline, pix->sizeimage,
736d96b5 266 pix->colorspace, pix->flags, pix->ycbcr_enc,
74fdcb2e 267 pix->quantization, pix->xfer_func);
be6c64e4
HV		 268 break;
269 case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE:
270 case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE:
271 mp = &p->fmt.pix_mp;
8720427c 272 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		 273 mp->width, mp->height,
274 (mp->pixelformat & 0xff),
275 (mp->pixelformat >> 8) & 0xff,
276 (mp->pixelformat >> 16) & 0xff,
277 (mp->pixelformat >> 24) & 0xff,
278 prt_names(mp->field, v4l2_field_names),
736d96b5 279 mp->colorspace, mp->num_planes, mp->flags,
74fdcb2e 280 mp->ycbcr_enc, mp->quantization, mp->xfer_func);
be6c64e4
HV		 281 for (i = 0; i < mp->num_planes; i++)
282 printk(KERN_DEBUG "plane %u: bytesperline=%u sizeimage=%u\n", i,
283 mp->plane_fmt[i].bytesperline,
284 mp->plane_fmt[i].sizeimage);
285 break;
286 case V4L2_BUF_TYPE_VIDEO_OVERLAY:
287 case V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY:
288 win = &p->fmt.win;
560dde24
HV		 289 /* Note: we can't print the clip list here since the clips
290 * pointer is a userspace pointer, not a kernelspace
291 * pointer. */
292 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",
293 win->w.width, win->w.height, win->w.left, win->w.top,
be6c64e4 294 prt_names(win->field, v4l2_field_names),
560dde24
HV		 295 win->chromakey, win->clipcount, win->clips,
296 win->bitmap, win->global_alpha);
be6c64e4
HV		 297 break;
298 case V4L2_BUF_TYPE_VBI_CAPTURE:
299 case V4L2_BUF_TYPE_VBI_OUTPUT:
300 vbi = &p->fmt.vbi;
8720427c 301 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		 302 vbi->sampling_rate, vbi->offset,
303 vbi->samples_per_line,
304 (vbi->sample_format & 0xff),
305 (vbi->sample_format >> 8) & 0xff,
306 (vbi->sample_format >> 16) & 0xff,
307 (vbi->sample_format >> 24) & 0xff,
308 vbi->start[0], vbi->start[1],
309 vbi->count[0], vbi->count[1]);
310 break;
311 case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE:
312 case V4L2_BUF_TYPE_SLICED_VBI_OUTPUT:
313 sliced = &p->fmt.sliced;
314 pr_cont(", service_set=0x%08x, io_size=%d\n",
315 sliced->service_set, sliced->io_size);
316 for (i = 0; i < 24; i++)
317 printk(KERN_DEBUG "line[%02u]=0x%04x, 0x%04x\n", i,
318 sliced->service_lines[0][i],
319 sliced->service_lines[1][i]);
320 break;
582c52cb 321 case V4L2_BUF_TYPE_SDR_CAPTURE:
9effc72f 322 case V4L2_BUF_TYPE_SDR_OUTPUT:
582c52cb
AP		 323 sdr = &p->fmt.sdr;
324 pr_cont(", pixelformat=%c%c%c%c\n",
325 (sdr->pixelformat >> 0) & 0xff,
326 (sdr->pixelformat >> 8) & 0xff,
327 (sdr->pixelformat >> 16) & 0xff,
328 (sdr->pixelformat >> 24) & 0xff);
329 break;
fb9ffa6a
LP		 330 case V4L2_BUF_TYPE_META_CAPTURE:
331 meta = &p->fmt.meta;
332 pr_cont(", dataformat=%c%c%c%c, buffersize=%u\n",
333 (meta->dataformat >> 0) & 0xff,
334 (meta->dataformat >> 8) & 0xff,
335 (meta->dataformat >> 16) & 0xff,
336 (meta->dataformat >> 24) & 0xff,
337 meta->buffersize);
338 break;
be6c64e4
HV		 339 }
340}
341
342static void v4l_print_framebuffer(const void *arg, bool write_only)
343{
344 const struct v4l2_framebuffer *p = arg;
345
8720427c 346 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		 347 p->capability, p->flags, p->base,
348 p->fmt.width, p->fmt.height,
349 (p->fmt.pixelformat & 0xff),
350 (p->fmt.pixelformat >> 8) & 0xff,
351 (p->fmt.pixelformat >> 16) & 0xff,
352 (p->fmt.pixelformat >> 24) & 0xff,
353 p->fmt.bytesperline, p->fmt.sizeimage,
354 p->fmt.colorspace);
355}
356
e325b244
HV		 357static void v4l_print_buftype(const void *arg, bool write_only)
358{
359 pr_cont("type=%s\n", prt_names(*(u32 *)arg, v4l2_type_names));
360}
361
4b1e2e4d
HV		 362static void v4l_print_modulator(const void *arg, bool write_only)
363{
364 const struct v4l2_modulator *p = arg;
365
366 if (write_only)
560dde24 367 pr_cont("index=%u, txsubchans=0x%x\n", p->index, p->txsubchans);
4b1e2e4d 368 else
8720427c 369 pr_cont("index=%u, name=%.*s, capability=0x%x, rangelow=%u, rangehigh=%u, txsubchans=0x%x\n",
27d5a87c 370 p->index, (int)sizeof(p->name), p->name, p->capability,
4b1e2e4d
HV		 371 p->rangelow, p->rangehigh, p->txsubchans);
372}
373
374static void v4l_print_tuner(const void *arg, bool write_only)
375{
376 const struct v4l2_tuner *p = arg;
377
378 if (write_only)
379 pr_cont("index=%u, audmode=%u\n", p->index, p->audmode);
380 else
8720427c 381 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 382 p->index, (int)sizeof(p->name), p->name, p->type,
4b1e2e4d
HV		 383 p->capability, p->rangelow,
384 p->rangehigh, p->signal, p->afc,
385 p->rxsubchans, p->audmode);
386}
387
388static void v4l_print_frequency(const void *arg, bool write_only)
389{
390 const struct v4l2_frequency *p = arg;
391
392 pr_cont("tuner=%u, type=%u, frequency=%u\n",
393 p->tuner, p->type, p->frequency);
394}
395
396static void v4l_print_standard(const void *arg, bool write_only)
397{
398 const struct v4l2_standard *p = arg;
399
8720427c
MCC		 400 pr_cont("index=%u, id=0x%Lx, name=%.*s, fps=%u/%u, framelines=%u\n",
401 p->index,
27d5a87c 402 (unsigned long long)p->id, (int)sizeof(p->name), p->name,
4b1e2e4d
HV		 403 p->frameperiod.numerator,
404 p->frameperiod.denominator,
405 p->framelines);
406}
407
408static void v4l_print_std(const void *arg, bool write_only)
409{
410 pr_cont("std=0x%08Lx\n", *(const long long unsigned *)arg);
411}
412
413static void v4l_print_hw_freq_seek(const void *arg, bool write_only)
414{
415 const struct v4l2_hw_freq_seek *p = arg;
416
8720427c 417 pr_cont("tuner=%u, type=%u, seek_upward=%u, wrap_around=%u, spacing=%u, rangelow=%u, rangehigh=%u\n",
5e788317
HV		 418 p->tuner, p->type, p->seek_upward, p->wrap_around, p->spacing,
419 p->rangelow, p->rangehigh);
4b1e2e4d
HV		 420}
421
eb3728ed 422static void v4l_print_requestbuffers(const void *arg, bool write_only)
59076122 423{
eb3728ed
HV		 424 const struct v4l2_requestbuffers *p = arg;
425
426 pr_cont("count=%d, type=%s, memory=%s\n",
427 p->count,
428 prt_names(p->type, v4l2_type_names),
429 prt_names(p->memory, v4l2_memory_names));
59076122
HV		 430}
431
eb3728ed 432static void v4l_print_buffer(const void *arg, bool write_only)
35ea11ff 433{
eb3728ed
HV		 434 const struct v4l2_buffer *p = arg;
435 const struct v4l2_timecode *tc = &p->timecode;
436 const struct v4l2_plane *plane;
d14e6d76 437 int i;
35ea11ff 438
8720427c 439 pr_cont("%02ld:%02d:%02d.%08ld index=%d, type=%s, flags=0x%08x, field=%s, sequence=%d, memory=%s",
35ea11ff
HV		 440 p->timestamp.tv_sec / 3600,
441 (int)(p->timestamp.tv_sec / 60) % 60,
442 (int)(p->timestamp.tv_sec % 60),
b045979d 443 (long)p->timestamp.tv_usec,
35ea11ff
HV		 444 p->index,
445 prt_names(p->type, v4l2_type_names),
eb3728ed
HV		 446 p->flags, prt_names(p->field, v4l2_field_names),
447 p->sequence, prt_names(p->memory, v4l2_memory_names));
d14e6d76
PO		 448
449 if (V4L2_TYPE_IS_MULTIPLANAR(p->type) && p->m.planes) {
eb3728ed 450 pr_cont("\n");
d14e6d76
PO		 451 for (i = 0; i < p->length; ++i) {
452 plane = &p->m.planes[i];
eb3728ed 453 printk(KERN_DEBUG
8720427c 454 "plane %d: bytesused=%d, data_offset=0x%08x, offset/userptr=0x%lx, length=%d\n",
d14e6d76
PO		 455 i, plane->bytesused, plane->data_offset,
456 plane->m.userptr, plane->length);
457 }
458 } else {
560dde24 459 pr_cont(", bytesused=%d, offset/userptr=0x%lx, length=%d\n",
d14e6d76
PO		 460 p->bytesused, p->m.userptr, p->length);
461 }
462
8720427c 463 printk(KERN_DEBUG "timecode=%02d:%02d:%02d type=%d, flags=0x%08x, frames=%d, userbits=0x%08x\n",
35ea11ff
HV		 464 tc->hours, tc->minutes, tc->seconds,
465 tc->type, tc->flags, tc->frames, *(__u32 *)tc->userbits);
466}
467
b799d09a
TS		 468static void v4l_print_exportbuffer(const void *arg, bool write_only)
469{
470 const struct v4l2_exportbuffer *p = arg;
471
472 pr_cont("fd=%d, type=%s, index=%u, plane=%u, flags=0x%08x\n",
473 p->fd, prt_names(p->type, v4l2_type_names),
474 p->index, p->plane, p->flags);
475}
476
eb3728ed
HV		 477static void v4l_print_create_buffers(const void *arg, bool write_only)
478{
479 const struct v4l2_create_buffers *p = arg;
480
481 pr_cont("index=%d, count=%d, memory=%s, ",
482 p->index, p->count,
483 prt_names(p->memory, v4l2_memory_names));
484 v4l_print_format(&p->format, write_only);
485}
486
487static void v4l_print_streamparm(const void *arg, bool write_only)
488{
489 const struct v4l2_streamparm *p = arg;
490
491 pr_cont("type=%s", prt_names(p->type, v4l2_type_names));
492
493 if (p->type == V4L2_BUF_TYPE_VIDEO_CAPTURE ||
494 p->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) {
495 const struct v4l2_captureparm *c = &p->parm.capture;
496
8720427c 497 pr_cont(", capability=0x%x, capturemode=0x%x, timeperframe=%d/%d, extendedmode=%d, readbuffers=%d\n",
eb3728ed
HV		 498 c->capability, c->capturemode,
499 c->timeperframe.numerator, c->timeperframe.denominator,
500 c->extendedmode, c->readbuffers);
501 } else if (p->type == V4L2_BUF_TYPE_VIDEO_OUTPUT ||
502 p->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) {
503 const struct v4l2_outputparm *c = &p->parm.output;
504
8720427c 505 pr_cont(", capability=0x%x, outputmode=0x%x, timeperframe=%d/%d, extendedmode=%d, writebuffers=%d\n",
eb3728ed
HV		 506 c->capability, c->outputmode,
507 c->timeperframe.numerator, c->timeperframe.denominator,
508 c->extendedmode, c->writebuffers);
560dde24
HV		 509 } else {
510 pr_cont("\n");
eb3728ed
HV		 511 }
512}
513
efbceecd
HV		 514static void v4l_print_queryctrl(const void *arg, bool write_only)
515{
516 const struct v4l2_queryctrl *p = arg;
517
8720427c 518 pr_cont("id=0x%x, type=%d, name=%.*s, min/max=%d/%d, step=%d, default=%d, flags=0x%08x\n",
27d5a87c 519 p->id, p->type, (int)sizeof(p->name), p->name,
efbceecd
HV		 520 p->minimum, p->maximum,
521 p->step, p->default_value, p->flags);
522}
523
e6bee368
HV		 524static void v4l_print_query_ext_ctrl(const void *arg, bool write_only)
525{
526 const struct v4l2_query_ext_ctrl *p = arg;
527
8720427c 528 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		 529 p->id, p->type, (int)sizeof(p->name), p->name,
530 p->minimum, p->maximum,
531 p->step, p->default_value, p->flags,
532 p->elem_size, p->elems, p->nr_of_dims,
0176077a 533 p->dims[0], p->dims[1], p->dims[2], p->dims[3]);
e6bee368
HV		 534}
535
efbceecd
HV		 536static void v4l_print_querymenu(const void *arg, bool write_only)
537{
538 const struct v4l2_querymenu *p = arg;
539
540 pr_cont("id=0x%x, index=%d\n", p->id, p->index);
541}
542
543static void v4l_print_control(const void *arg, bool write_only)
544{
545 const struct v4l2_control *p = arg;
546
547 pr_cont("id=0x%x, value=%d\n", p->id, p->value);
548}
549
550static void v4l_print_ext_controls(const void *arg, bool write_only)
551{
552 const struct v4l2_ext_controls *p = arg;
553 int i;
554
0f8017be
RRD		 555 pr_cont("which=0x%x, count=%d, error_idx=%d",
556 p->which, p->count, p->error_idx);
efbceecd 557 for (i = 0; i < p->count; i++) {
017ab36a 558 if (!p->controls[i].size)
efbceecd
HV		 559 pr_cont(", id/val=0x%x/0x%x",
560 p->controls[i].id, p->controls[i].value);
561 else
562 pr_cont(", id/size=0x%x/%u",
563 p->controls[i].id, p->controls[i].size);
564 }
565 pr_cont("\n");
566}
567
d84f2d94 568static void v4l_print_cropcap(const void *arg, bool write_only)
eb3728ed 569{
d84f2d94
HV		 570 const struct v4l2_cropcap *p = arg;
571
8720427c 572 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		 573 prt_names(p->type, v4l2_type_names),
574 p->bounds.width, p->bounds.height,
575 p->bounds.left, p->bounds.top,
576 p->defrect.width, p->defrect.height,
577 p->defrect.left, p->defrect.top,
578 p->pixelaspect.numerator, p->pixelaspect.denominator);
eb3728ed
HV		 579}
580
d84f2d94 581static void v4l_print_crop(const void *arg, bool write_only)
35ea11ff 582{
d84f2d94
HV		 583 const struct v4l2_crop *p = arg;
584
585 pr_cont("type=%s, wxh=%dx%d, x,y=%d,%d\n",
586 prt_names(p->type, v4l2_type_names),
587 p->c.width, p->c.height,
588 p->c.left, p->c.top);
589}
590
591static void v4l_print_selection(const void *arg, bool write_only)
592{
593 const struct v4l2_selection *p = arg;
594
595 pr_cont("type=%s, target=%d, flags=0x%x, wxh=%dx%d, x,y=%d,%d\n",
596 prt_names(p->type, v4l2_type_names),
597 p->target, p->flags,
598 p->r.width, p->r.height, p->r.left, p->r.top);
599}
600
d806f2df
HV		 601static void v4l_print_jpegcompression(const void *arg, bool write_only)
602{
603 const struct v4l2_jpegcompression *p = arg;
604
8720427c 605 pr_cont("quality=%d, APPn=%d, APP_len=%d, COM_len=%d, jpeg_markers=0x%x\n",
d806f2df
HV		 606 p->quality, p->APPn, p->APP_len,
607 p->COM_len, p->jpeg_markers);
608}
609
610static void v4l_print_enc_idx(const void *arg, bool write_only)
611{
612 const struct v4l2_enc_idx *p = arg;
613
614 pr_cont("entries=%d, entries_cap=%d\n",
615 p->entries, p->entries_cap);
616}
617
618static void v4l_print_encoder_cmd(const void *arg, bool write_only)
619{
620 const struct v4l2_encoder_cmd *p = arg;
621
622 pr_cont("cmd=%d, flags=0x%x\n",
623 p->cmd, p->flags);
624}
625
626static void v4l_print_decoder_cmd(const void *arg, bool write_only)
627{
628 const struct v4l2_decoder_cmd *p = arg;
629
630 pr_cont("cmd=%d, flags=0x%x\n", p->cmd, p->flags);
631
632 if (p->cmd == V4L2_DEC_CMD_START)
633 pr_info("speed=%d, format=%u\n",
634 p->start.speed, p->start.format);
635 else if (p->cmd == V4L2_DEC_CMD_STOP)
636 pr_info("pts=%llu\n", p->stop.pts);
637}
638
96b03d2a 639static void v4l_print_dbg_chip_info(const void *arg, bool write_only)
79b0c640 640{
96b03d2a 641 const struct v4l2_dbg_chip_info *p = arg;
79b0c640
HV		 642
643 pr_cont("type=%u, ", p->match.type);
3eef2510 644 if (p->match.type == V4L2_CHIP_MATCH_I2C_DRIVER)
79b0c640
HV		 645 pr_cont("name=%.*s, ",
646 (int)sizeof(p->match.name), p->match.name);
647 else
648 pr_cont("addr=%u, ", p->match.addr);
649 pr_cont("name=%.*s\n", (int)sizeof(p->name), p->name);
650}
651
f16f77b0
HV		 652static void v4l_print_dbg_register(const void *arg, bool write_only)
653{
654 const struct v4l2_dbg_register *p = arg;
655
656 pr_cont("type=%u, ", p->match.type);
3eef2510 657 if (p->match.type == V4L2_CHIP_MATCH_I2C_DRIVER)
27d5a87c
HV		 658 pr_cont("name=%.*s, ",
659 (int)sizeof(p->match.name), p->match.name);
f16f77b0
HV		 660 else
661 pr_cont("addr=%u, ", p->match.addr);
662 pr_cont("reg=0x%llx, val=0x%llx\n",
663 p->reg, p->val);
664}
665
efc626b0 666static void v4l_print_dv_timings(const void *arg, bool write_only)
5d7758ee 667{
efc626b0
HV		 668 const struct v4l2_dv_timings *p = arg;
669
5d7758ee
HV		 670 switch (p->type) {
671 case V4L2_DV_BT_656_1120:
8720427c 672 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		 673 p->bt.interlaced, p->bt.pixelclock,
674 p->bt.width, p->bt.height,
675 p->bt.polarities, p->bt.hfrontporch,
676 p->bt.hsync, p->bt.hbackporch,
677 p->bt.vfrontporch, p->bt.vsync,
678 p->bt.vbackporch, p->bt.il_vfrontporch,
679 p->bt.il_vsync, p->bt.il_vbackporch,
680 p->bt.standards, p->bt.flags);
681 break;
682 default:
efc626b0 683 pr_cont("type=%d\n", p->type);
5d7758ee
HV		 684 break;
685 }
686}
687
efc626b0
HV		 688static void v4l_print_enum_dv_timings(const void *arg, bool write_only)
689{
690 const struct v4l2_enum_dv_timings *p = arg;
691
692 pr_cont("index=%u, ", p->index);
693 v4l_print_dv_timings(&p->timings, write_only);
694}
695
696static void v4l_print_dv_timings_cap(const void *arg, bool write_only)
697{
698 const struct v4l2_dv_timings_cap *p = arg;
699
700 switch (p->type) {
701 case V4L2_DV_BT_656_1120:
8720427c 702 pr_cont("type=bt-656/1120, width=%u-%u, height=%u-%u, pixelclock=%llu-%llu, standards=0x%x, capabilities=0x%x\n",
efc626b0
HV		 703 p->bt.min_width, p->bt.max_width,
704 p->bt.min_height, p->bt.max_height,
705 p->bt.min_pixelclock, p->bt.max_pixelclock,
706 p->bt.standards, p->bt.capabilities);
707 break;
708 default:
709 pr_cont("type=%u\n", p->type);
710 break;
711 }
712}
713
458aa4a6
HV		 714static void v4l_print_frmsizeenum(const void *arg, bool write_only)
715{
716 const struct v4l2_frmsizeenum *p = arg;
717
718 pr_cont("index=%u, pixelformat=%c%c%c%c, type=%u",
719 p->index,
720 (p->pixel_format & 0xff),
721 (p->pixel_format >> 8) & 0xff,
722 (p->pixel_format >> 16) & 0xff,
723 (p->pixel_format >> 24) & 0xff,
724 p->type);
725 switch (p->type) {
726 case V4L2_FRMSIZE_TYPE_DISCRETE:
560dde24 727 pr_cont(", wxh=%ux%u\n",
458aa4a6
HV		 728 p->discrete.width, p->discrete.height);
729 break;
730 case V4L2_FRMSIZE_TYPE_STEPWISE:
560dde24 731 pr_cont(", min=%ux%u, max=%ux%u, step=%ux%u\n",
458aa4a6
HV		 732 p->stepwise.min_width, p->stepwise.min_height,
733 p->stepwise.step_width, p->stepwise.step_height,
734 p->stepwise.max_width, p->stepwise.max_height);
735 break;
736 case V4L2_FRMSIZE_TYPE_CONTINUOUS:
737 /* fall through */
738 default:
739 pr_cont("\n");
740 break;
741 }
742}
743
744static void v4l_print_frmivalenum(const void *arg, bool write_only)
745{
746 const struct v4l2_frmivalenum *p = arg;
747
748 pr_cont("index=%u, pixelformat=%c%c%c%c, wxh=%ux%u, type=%u",
749 p->index,
750 (p->pixel_format & 0xff),
751 (p->pixel_format >> 8) & 0xff,
752 (p->pixel_format >> 16) & 0xff,
753 (p->pixel_format >> 24) & 0xff,
754 p->width, p->height, p->type);
755 switch (p->type) {
756 case V4L2_FRMIVAL_TYPE_DISCRETE:
560dde24 757 pr_cont(", fps=%d/%d\n",
458aa4a6
HV		 758 p->discrete.numerator,
759 p->discrete.denominator);
760 break;
761 case V4L2_FRMIVAL_TYPE_STEPWISE:
560dde24 762 pr_cont(", min=%d/%d, max=%d/%d, step=%d/%d\n",
458aa4a6
HV		 763 p->stepwise.min.numerator,
764 p->stepwise.min.denominator,
765 p->stepwise.max.numerator,
766 p->stepwise.max.denominator,
767 p->stepwise.step.numerator,
768 p->stepwise.step.denominator);
769 break;
770 case V4L2_FRMIVAL_TYPE_CONTINUOUS:
771 /* fall through */
772 default:
773 pr_cont("\n");
774 break;
775 }
776}
777
778static void v4l_print_event(const void *arg, bool write_only)
779{
780 const struct v4l2_event *p = arg;
781 const struct v4l2_event_ctrl *c;
782
8720427c 783 pr_cont("type=0x%x, pending=%u, sequence=%u, id=%u, timestamp=%lu.%9.9lu\n",
458aa4a6
HV		 784 p->type, p->pending, p->sequence, p->id,
785 p->timestamp.tv_sec, p->timestamp.tv_nsec);
786 switch (p->type) {
787 case V4L2_EVENT_VSYNC:
788 printk(KERN_DEBUG "field=%s\n",
789 prt_names(p->u.vsync.field, v4l2_field_names));
790 break;
791 case V4L2_EVENT_CTRL:
792 c = &p->u.ctrl;
793 printk(KERN_DEBUG "changes=0x%x, type=%u, ",
794 c->changes, c->type);
795 if (c->type == V4L2_CTRL_TYPE_INTEGER64)
796 pr_cont("value64=%lld, ", c->value64);
797 else
798 pr_cont("value=%d, ", c->value);
8720427c 799 pr_cont("flags=0x%x, minimum=%d, maximum=%d, step=%d, default_value=%d\n",
458aa4a6
HV		 800 c->flags, c->minimum, c->maximum,
801 c->step, c->default_value);
802 break;
803 case V4L2_EVENT_FRAME_SYNC:
804 pr_cont("frame_sequence=%u\n",
805 p->u.frame_sync.frame_sequence);
806 break;
807 }
808}
809
810static void v4l_print_event_subscription(const void *arg, bool write_only)
811{
812 const struct v4l2_event_subscription *p = arg;
813
814 pr_cont("type=0x%x, id=0x%x, flags=0x%x\n",
815 p->type, p->id, p->flags);
816}
817
818static void v4l_print_sliced_vbi_cap(const void *arg, bool write_only)
819{
820 const struct v4l2_sliced_vbi_cap *p = arg;
821 int i;
822
823 pr_cont("type=%s, service_set=0x%08x\n",
824 prt_names(p->type, v4l2_type_names), p->service_set);
825 for (i = 0; i < 24; i++)
826 printk(KERN_DEBUG "line[%02u]=0x%04x, 0x%04x\n", i,
827 p->service_lines[0][i],
828 p->service_lines[1][i]);
829}
830
82b655bf
HV		 831static void v4l_print_freq_band(const void *arg, bool write_only)
832{
833 const struct v4l2_frequency_band *p = arg;
834
8720427c 835 pr_cont("tuner=%u, type=%u, index=%u, capability=0x%x, rangelow=%u, rangehigh=%u, modulation=0x%x\n",
82b655bf
HV		 836 p->tuner, p->type, p->index,
837 p->capability, p->rangelow,
838 p->rangehigh, p->modulation);
839}
840
dd519bb3
HV		 841static void v4l_print_edid(const void *arg, bool write_only)
842{
843 const struct v4l2_edid *p = arg;
844
845 pr_cont("pad=%u, start_block=%u, blocks=%u\n",
846 p->pad, p->start_block, p->blocks);
847}
848
efc626b0
HV		 849static void v4l_print_u32(const void *arg, bool write_only)
850{
851 pr_cont("value=%u\n", *(const u32 *)arg);
852}
853
854static void v4l_print_newline(const void *arg, bool write_only)
855{
856 pr_cont("\n");
857}
858
f18d8e07
HV		 859static void v4l_print_default(const void *arg, bool write_only)
860{
861 pr_cont("driver-specific ioctl\n");
862}
863
efbceecd 864static int check_ext_ctrls(struct v4l2_ext_controls *c, int allow_priv)
35ea11ff
HV		 865{
866 __u32 i;
867
868 /* zero the reserved fields */
869 c->reserved[0] = c->reserved[1] = 0;
6b5a9492 870 for (i = 0; i < c->count; i++)
35ea11ff 871 c->controls[i].reserved2[0] = 0;
6b5a9492 872
35ea11ff
HV		 873 /* V4L2_CID_PRIVATE_BASE cannot be used as control class
874 when using extended controls.
875 Only when passed in through VIDIOC_G_CTRL and VIDIOC_S_CTRL
876 is it allowed for backwards compatibility.
877 */
0f8017be 878 if (!allow_priv && c->which == V4L2_CID_PRIVATE_BASE)
35ea11ff 879 return 0;
0f8017be 880 if (!c->which)
9b239b22 881 return 1;
35ea11ff
HV		 882 /* Check that all controls are from the same control class. */
883 for (i = 0; i < c->count; i++) {
0f8017be 884 if (V4L2_CTRL_ID2WHICH(c->controls[i].id) != c->which) {
35ea11ff
HV		 885 c->error_idx = i;
886 return 0;
887 }
888 }
889 return 1;
890}
891
4b20259f 892static int check_fmt(struct file *file, enum v4l2_buf_type type)
35ea11ff 893{
4b20259f
HV		 894 struct video_device *vfd = video_devdata(file);
895 const struct v4l2_ioctl_ops *ops = vfd->ioctl_ops;
896 bool is_vid = vfd->vfl_type == VFL_TYPE_GRABBER;
897 bool is_vbi = vfd->vfl_type == VFL_TYPE_VBI;
582c52cb 898 bool is_sdr = vfd->vfl_type == VFL_TYPE_SDR;
b2fe22d0 899 bool is_tch = vfd->vfl_type == VFL_TYPE_TOUCH;
4b20259f
HV		 900 bool is_rx = vfd->vfl_dir != VFL_DIR_TX;
901 bool is_tx = vfd->vfl_dir != VFL_DIR_RX;
902
a399810c
HV		 903 if (ops == NULL)
904 return -EINVAL;
905
35ea11ff
HV		 906 switch (type) {
907 case V4L2_BUF_TYPE_VIDEO_CAPTURE:
b2fe22d0 908 if ((is_vid || is_tch) && is_rx &&
4b20259f 909 (ops->vidioc_g_fmt_vid_cap || ops->vidioc_g_fmt_vid_cap_mplane))
d14e6d76
PO		 910 return 0;
911 break;
912 case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE:
4b20259f 913 if (is_vid && is_rx && ops->vidioc_g_fmt_vid_cap_mplane)
35ea11ff
HV		 914 return 0;
915 break;
916 case V4L2_BUF_TYPE_VIDEO_OVERLAY:
4b20259f 917 if (is_vid && is_rx && ops->vidioc_g_fmt_vid_overlay)
35ea11ff
HV		 918 return 0;
919 break;
920 case V4L2_BUF_TYPE_VIDEO_OUTPUT:
4b20259f
HV		 921 if (is_vid && is_tx &&
922 (ops->vidioc_g_fmt_vid_out || ops->vidioc_g_fmt_vid_out_mplane))
d14e6d76
PO		 923 return 0;
924 break;
925 case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE:
4b20259f 926 if (is_vid && is_tx && ops->vidioc_g_fmt_vid_out_mplane)
35ea11ff
HV		 927 return 0;
928 break;
929 case V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY:
4b20259f 930 if (is_vid && is_tx && ops->vidioc_g_fmt_vid_out_overlay)
35ea11ff
HV		 931 return 0;
932 break;
933 case V4L2_BUF_TYPE_VBI_CAPTURE:
4b20259f 934 if (is_vbi && is_rx && ops->vidioc_g_fmt_vbi_cap)
35ea11ff
HV		 935 return 0;
936 break;
937 case V4L2_BUF_TYPE_VBI_OUTPUT:
4b20259f 938 if (is_vbi && is_tx && ops->vidioc_g_fmt_vbi_out)
35ea11ff
HV		 939 return 0;
940 break;
941 case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE:
4b20259f 942 if (is_vbi && is_rx && ops->vidioc_g_fmt_sliced_vbi_cap)
35ea11ff
HV		 943 return 0;
944 break;
945 case V4L2_BUF_TYPE_SLICED_VBI_OUTPUT:
4b20259f 946 if (is_vbi && is_tx && ops->vidioc_g_fmt_sliced_vbi_out)
35ea11ff
HV		 947 return 0;
948 break;
582c52cb
AP		 949 case V4L2_BUF_TYPE_SDR_CAPTURE:
950 if (is_sdr && is_rx && ops->vidioc_g_fmt_sdr_cap)
951 return 0;
952 break;
9effc72f
AP		 953 case V4L2_BUF_TYPE_SDR_OUTPUT:
954 if (is_sdr && is_tx && ops->vidioc_g_fmt_sdr_out)
955 return 0;
956 break;
fb9ffa6a
LP		 957 case V4L2_BUF_TYPE_META_CAPTURE:
958 if (is_vid && is_rx && ops->vidioc_g_fmt_meta_cap)
959 return 0;
960 break;
633c98e5 961 default:
35ea11ff
HV		 962 break;
963 }
964 return -EINVAL;
965}
966
d52e2381
LP		 967static void v4l_sanitize_format(struct v4l2_format *fmt)
968{
969 unsigned int offset;
970
971 /*
972 * The v4l2_pix_format structure has been extended with fields that were
973 * not previously required to be set to zero by applications. The priv
974 * field, when set to a magic value, indicates the the extended fields
975 * are valid. Otherwise they will contain undefined values. To simplify
976 * the API towards drivers zero the extended fields and set the priv
977 * field to the magic value when the extended pixel format structure
978 * isn't used by applications.
979 */
980
981 if (fmt->type != V4L2_BUF_TYPE_VIDEO_CAPTURE &&
982 fmt->type != V4L2_BUF_TYPE_VIDEO_OUTPUT)
983 return;
984
985 if (fmt->fmt.pix.priv == V4L2_PIX_FMT_PRIV_MAGIC)
986 return;
987
988 fmt->fmt.pix.priv = V4L2_PIX_FMT_PRIV_MAGIC;
989
990 offset = offsetof(struct v4l2_pix_format, priv)
991 + sizeof(fmt->fmt.pix.priv);
992 memset(((void *)&fmt->fmt.pix) + offset, 0,
993 sizeof(fmt->fmt.pix) - offset);
994}
995
59076122
HV		 996static int v4l_querycap(const struct v4l2_ioctl_ops *ops,
997 struct file *file, void *fh, void *arg)
998{
999 struct v4l2_capability *cap = (struct v4l2_capability *)arg;
7bbe7813 1000 struct video_device *vfd = video_devdata(file);
d52e2381 1001 int ret;
59076122
HV		 1002
1003 cap->version = LINUX_VERSION_CODE;
7bbe7813
HV		 1004 cap->device_caps = vfd->device_caps;
1005 cap->capabilities = vfd->device_caps | V4L2_CAP_DEVICE_CAPS;
d52e2381
LP		 1006
1007 ret = ops->vidioc_querycap(file, fh, cap);
1008
1009 cap->capabilities |= V4L2_CAP_EXT_PIX_FORMAT;
454a4e72
HV		 1010 /*
1011 * Drivers MUST fill in device_caps, so check for this and
1012 * warn if it was forgotten.
1013 */
6d7570c4
LA		 1014 WARN(!(cap->capabilities & V4L2_CAP_DEVICE_CAPS) ||
1015 !cap->device_caps, "Bad caps for driver %s, %x %x",
1016 cap->driver, cap->capabilities, cap->device_caps);
796a2bd2 1017 cap->device_caps |= V4L2_CAP_EXT_PIX_FORMAT;
d52e2381
LP		 1018
1019 return ret;
59076122
HV		 1020}
1021
1022static int v4l_s_input(const struct v4l2_ioctl_ops *ops,
1023 struct file *file, void *fh, void *arg)
1024{
77fa4e07
SK		 1025 struct video_device *vfd = video_devdata(file);
1026 int ret;
1027
1028 ret = v4l_enable_media_source(vfd);
1029 if (ret)
1030 return ret;
59076122
HV		 1031 return ops->vidioc_s_input(file, fh, *(unsigned int *)arg);
1032}
1033
1034static int v4l_s_output(const struct v4l2_ioctl_ops *ops,
1035 struct file *file, void *fh, void *arg)
1036{
1037 return ops->vidioc_s_output(file, fh, *(unsigned int *)arg);
1038}
1039
d0547cba
HV		 1040static int v4l_g_priority(const struct v4l2_ioctl_ops *ops,
1041 struct file *file, void *fh, void *arg)
1042{
1043 struct video_device *vfd;
1044 u32 *p = arg;
1045
d0547cba 1046 vfd = video_devdata(file);
59b702ea 1047 *p = v4l2_prio_max(vfd->prio);
d0547cba
HV		 1048 return 0;
1049}
1050
1051static int v4l_s_priority(const struct v4l2_ioctl_ops *ops,
1052 struct file *file, void *fh, void *arg)
1053{
1054 struct video_device *vfd;
1055 struct v4l2_fh *vfh;
1056 u32 *p = arg;
1057
d0547cba 1058 vfd = video_devdata(file);
2438e78a
HV		 1059 if (!test_bit(V4L2_FL_USES_V4L2_FH, &vfd->flags))
1060 return -ENOTTY;
d0547cba 1061 vfh = file->private_data;
59b702ea 1062 return v4l2_prio_change(vfd->prio, &vfh->prio, *p);
d0547cba
HV		 1063}
1064
59076122
HV		 1065static int v4l_enuminput(const struct v4l2_ioctl_ops *ops,
1066 struct file *file, void *fh, void *arg)
1067{
73f35418 1068 struct video_device *vfd = video_devdata(file);
59076122
HV		 1069 struct v4l2_input *p = arg;
1070
1071 /*
02fa6282 1072 * We set the flags for CAP_DV_TIMINGS &
59076122
HV		 1073 * CAP_STD here based on ioctl handler provided by the
1074 * driver. If the driver doesn't support these
1075 * for a specific input, it must override these flags.
1076 */
73f35418 1077 if (is_valid_ioctl(vfd, VIDIOC_S_STD))
59076122 1078 p->capabilities |= V4L2_IN_CAP_STD;
59076122
HV		 1079
1080 return ops->vidioc_enum_input(file, fh, p);
1081}
1082
1083static int v4l_enumoutput(const struct v4l2_ioctl_ops *ops,
1084 struct file *file, void *fh, void *arg)
1085{
73f35418 1086 struct video_device *vfd = video_devdata(file);
59076122
HV		 1087 struct v4l2_output *p = arg;
1088
1089 /*
02fa6282 1090 * We set the flags for CAP_DV_TIMINGS &
59076122
HV		 1091 * CAP_STD here based on ioctl handler provided by the
1092 * driver. If the driver doesn't support these
1093 * for a specific output, it must override these flags.
1094 */
73f35418 1095 if (is_valid_ioctl(vfd, VIDIOC_S_STD))
59076122 1096 p->capabilities |= V4L2_OUT_CAP_STD;
59076122
HV		 1097
1098 return ops->vidioc_enum_output(file, fh, p);
1099}
1100
ba300204
HV		 1101static void v4l_fill_fmtdesc(struct v4l2_fmtdesc *fmt)
1102{
1103 const unsigned sz = sizeof(fmt->description);
1104 const char *descr = NULL;
1105 u32 flags = 0;
1106
1107 /*
1108 * We depart from the normal coding style here since the descriptions
1109 * should be aligned so it is easy to see which descriptions will be
1110 * longer than 31 characters (the max length for a description).
1111 * And frankly, this is easier to read anyway.
1112 *
1113 * Note that gcc will use O(log N) comparisons to find the right case.
1114 */
1115 switch (fmt->pixelformat) {
1116 /* Max description length mask: descr = "0123456789012345678901234567890" */
1117 case V4L2_PIX_FMT_RGB332: descr = "8-bit RGB 3-3-2"; break;
1118 case V4L2_PIX_FMT_RGB444: descr = "16-bit A/XRGB 4-4-4-4"; break;
1119 case V4L2_PIX_FMT_ARGB444: descr = "16-bit ARGB 4-4-4-4"; break;
1120 case V4L2_PIX_FMT_XRGB444: descr = "16-bit XRGB 4-4-4-4"; break;
1121 case V4L2_PIX_FMT_RGB555: descr = "16-bit A/XRGB 1-5-5-5"; break;
1122 case V4L2_PIX_FMT_ARGB555: descr = "16-bit ARGB 1-5-5-5"; break;
1123 case V4L2_PIX_FMT_XRGB555: descr = "16-bit XRGB 1-5-5-5"; break;
1124 case V4L2_PIX_FMT_RGB565: descr = "16-bit RGB 5-6-5"; break;
1125 case V4L2_PIX_FMT_RGB555X: descr = "16-bit A/XRGB 1-5-5-5 BE"; break;
1126 case V4L2_PIX_FMT_ARGB555X: descr = "16-bit ARGB 1-5-5-5 BE"; break;
1127 case V4L2_PIX_FMT_XRGB555X: descr = "16-bit XRGB 1-5-5-5 BE"; break;
1128 case V4L2_PIX_FMT_RGB565X: descr = "16-bit RGB 5-6-5 BE"; break;
1129 case V4L2_PIX_FMT_BGR666: descr = "18-bit BGRX 6-6-6-14"; break;
1130 case V4L2_PIX_FMT_BGR24: descr = "24-bit BGR 8-8-8"; break;
1131 case V4L2_PIX_FMT_RGB24: descr = "24-bit RGB 8-8-8"; break;
1132 case V4L2_PIX_FMT_BGR32: descr = "32-bit BGRA/X 8-8-8-8"; break;
1133 case V4L2_PIX_FMT_ABGR32: descr = "32-bit BGRA 8-8-8-8"; break;
1134 case V4L2_PIX_FMT_XBGR32: descr = "32-bit BGRX 8-8-8-8"; break;
1135 case V4L2_PIX_FMT_RGB32: descr = "32-bit A/XRGB 8-8-8-8"; break;
1136 case V4L2_PIX_FMT_ARGB32: descr = "32-bit ARGB 8-8-8-8"; break;
1137 case V4L2_PIX_FMT_XRGB32: descr = "32-bit XRGB 8-8-8-8"; break;
1138 case V4L2_PIX_FMT_GREY: descr = "8-bit Greyscale"; break;
1139 case V4L2_PIX_FMT_Y4: descr = "4-bit Greyscale"; break;
1140 case V4L2_PIX_FMT_Y6: descr = "6-bit Greyscale"; break;
1141 case V4L2_PIX_FMT_Y10: descr = "10-bit Greyscale"; break;
1142 case V4L2_PIX_FMT_Y12: descr = "12-bit Greyscale"; break;
1143 case V4L2_PIX_FMT_Y16: descr = "16-bit Greyscale"; break;
2e5e435f 1144 case V4L2_PIX_FMT_Y16_BE: descr = "16-bit Greyscale BE"; break;
ba300204 1145 case V4L2_PIX_FMT_Y10BPACK: descr = "10-bit Greyscale (Packed)"; break;
5b382290
LP		 1146 case V4L2_PIX_FMT_Y8I: descr = "Interleaved 8-bit Greyscale"; break;
1147 case V4L2_PIX_FMT_Y12I: descr = "Interleaved 12-bit Greyscale"; break;
1148 case V4L2_PIX_FMT_Z16: descr = "16-bit Depth"; break;
5df082e2 1149 case V4L2_PIX_FMT_INZI: descr = "Planar 10:16 Greyscale Depth"; break;
ba300204
HV		 1150 case V4L2_PIX_FMT_PAL8: descr = "8-bit Palette"; break;
1151 case V4L2_PIX_FMT_UV8: descr = "8-bit Chrominance UV 4-4"; break;
1152 case V4L2_PIX_FMT_YVU410: descr = "Planar YVU 4:1:0"; break;
1153 case V4L2_PIX_FMT_YVU420: descr = "Planar YVU 4:2:0"; break;
1154 case V4L2_PIX_FMT_YUYV: descr = "YUYV 4:2:2"; break;
1155 case V4L2_PIX_FMT_YYUV: descr = "YYUV 4:2:2"; break;
1156 case V4L2_PIX_FMT_YVYU: descr = "YVYU 4:2:2"; break;
1157 case V4L2_PIX_FMT_UYVY: descr = "UYVY 4:2:2"; break;
1158 case V4L2_PIX_FMT_VYUY: descr = "VYUY 4:2:2"; break;
fcbafafb 1159 case V4L2_PIX_FMT_YUV422P: descr = "Planar YUV 4:2:2"; break;
ba300204
HV		 1160 case V4L2_PIX_FMT_YUV411P: descr = "Planar YUV 4:1:1"; break;
1161 case V4L2_PIX_FMT_Y41P: descr = "YUV 4:1:1 (Packed)"; break;
1162 case V4L2_PIX_FMT_YUV444: descr = "16-bit A/XYUV 4-4-4-4"; break;
1163 case V4L2_PIX_FMT_YUV555: descr = "16-bit A/XYUV 1-5-5-5"; break;
1164 case V4L2_PIX_FMT_YUV565: descr = "16-bit YUV 5-6-5"; break;
1165 case V4L2_PIX_FMT_YUV32: descr = "32-bit A/XYUV 8-8-8-8"; break;
1166 case V4L2_PIX_FMT_YUV410: descr = "Planar YUV 4:1:0"; break;
1167 case V4L2_PIX_FMT_YUV420: descr = "Planar YUV 4:2:0"; break;
1168 case V4L2_PIX_FMT_HI240: descr = "8-bit Dithered RGB (BTTV)"; break;
1169 case V4L2_PIX_FMT_HM12: descr = "YUV 4:2:0 (16x16 Macroblocks)"; break;
1170 case V4L2_PIX_FMT_M420: descr = "YUV 4:2:0 (M420)"; break;
1171 case V4L2_PIX_FMT_NV12: descr = "Y/CbCr 4:2:0"; break;
1172 case V4L2_PIX_FMT_NV21: descr = "Y/CrCb 4:2:0"; break;
1173 case V4L2_PIX_FMT_NV16: descr = "Y/CbCr 4:2:2"; break;
1174 case V4L2_PIX_FMT_NV61: descr = "Y/CrCb 4:2:2"; break;
1175 case V4L2_PIX_FMT_NV24: descr = "Y/CbCr 4:4:4"; break;
1176 case V4L2_PIX_FMT_NV42: descr = "Y/CrCb 4:4:4"; break;
1177 case V4L2_PIX_FMT_NV12M: descr = "Y/CbCr 4:2:0 (N-C)"; break;
1178 case V4L2_PIX_FMT_NV21M: descr = "Y/CrCb 4:2:0 (N-C)"; break;
1179 case V4L2_PIX_FMT_NV16M: descr = "Y/CbCr 4:2:2 (N-C)"; break;
1180 case V4L2_PIX_FMT_NV61M: descr = "Y/CrCb 4:2:2 (N-C)"; break;
1181 case V4L2_PIX_FMT_NV12MT: descr = "Y/CbCr 4:2:0 (64x32 MB, N-C)"; break;
1182 case V4L2_PIX_FMT_NV12MT_16X16: descr = "Y/CbCr 4:2:0 (16x16 MB, N-C)"; break;
1183 case V4L2_PIX_FMT_YUV420M: descr = "Planar YUV 4:2:0 (N-C)"; break;
1184 case V4L2_PIX_FMT_YVU420M: descr = "Planar YVU 4:2:0 (N-C)"; break;
d65fae92
LP		 1185 case V4L2_PIX_FMT_YUV422M: descr = "Planar YUV 4:2:2 (N-C)"; break;
1186 case V4L2_PIX_FMT_YVU422M: descr = "Planar YVU 4:2:2 (N-C)"; break;
1187 case V4L2_PIX_FMT_YUV444M: descr = "Planar YUV 4:4:4 (N-C)"; break;
1188 case V4L2_PIX_FMT_YVU444M: descr = "Planar YVU 4:4:4 (N-C)"; break;
ba300204
HV		 1189 case V4L2_PIX_FMT_SBGGR8: descr = "8-bit Bayer BGBG/GRGR"; break;
1190 case V4L2_PIX_FMT_SGBRG8: descr = "8-bit Bayer GBGB/RGRG"; break;
1191 case V4L2_PIX_FMT_SGRBG8: descr = "8-bit Bayer GRGR/BGBG"; break;
1192 case V4L2_PIX_FMT_SRGGB8: descr = "8-bit Bayer RGRG/GBGB"; break;
1193 case V4L2_PIX_FMT_SBGGR10: descr = "10-bit Bayer BGBG/GRGR"; break;
1194 case V4L2_PIX_FMT_SGBRG10: descr = "10-bit Bayer GBGB/RGRG"; break;
1195 case V4L2_PIX_FMT_SGRBG10: descr = "10-bit Bayer GRGR/BGBG"; break;
1196 case V4L2_PIX_FMT_SRGGB10: descr = "10-bit Bayer RGRG/GBGB"; break;
1197 case V4L2_PIX_FMT_SBGGR12: descr = "12-bit Bayer BGBG/GRGR"; break;
1198 case V4L2_PIX_FMT_SGBRG12: descr = "12-bit Bayer GBGB/RGRG"; break;
1199 case V4L2_PIX_FMT_SGRBG12: descr = "12-bit Bayer GRGR/BGBG"; break;
1200 case V4L2_PIX_FMT_SRGGB12: descr = "12-bit Bayer RGRG/GBGB"; break;
1201 case V4L2_PIX_FMT_SBGGR10P: descr = "10-bit Bayer BGBG/GRGR Packed"; break;
1202 case V4L2_PIX_FMT_SGBRG10P: descr = "10-bit Bayer GBGB/RGRG Packed"; break;
1203 case V4L2_PIX_FMT_SGRBG10P: descr = "10-bit Bayer GRGR/BGBG Packed"; break;
1204 case V4L2_PIX_FMT_SRGGB10P: descr = "10-bit Bayer RGRG/GBGB Packed"; break;
1205 case V4L2_PIX_FMT_SBGGR10ALAW8: descr = "8-bit Bayer BGBG/GRGR (A-law)"; break;
1206 case V4L2_PIX_FMT_SGBRG10ALAW8: descr = "8-bit Bayer GBGB/RGRG (A-law)"; break;
1207 case V4L2_PIX_FMT_SGRBG10ALAW8: descr = "8-bit Bayer GRGR/BGBG (A-law)"; break;
1208 case V4L2_PIX_FMT_SRGGB10ALAW8: descr = "8-bit Bayer RGRG/GBGB (A-law)"; break;
1209 case V4L2_PIX_FMT_SBGGR10DPCM8: descr = "8-bit Bayer BGBG/GRGR (DPCM)"; break;
1210 case V4L2_PIX_FMT_SGBRG10DPCM8: descr = "8-bit Bayer GBGB/RGRG (DPCM)"; break;
1211 case V4L2_PIX_FMT_SGRBG10DPCM8: descr = "8-bit Bayer GRGR/BGBG (DPCM)"; break;
1212 case V4L2_PIX_FMT_SRGGB10DPCM8: descr = "8-bit Bayer RGRG/GBGB (DPCM)"; break;
b9a4b13c
SA		 1213 case V4L2_PIX_FMT_SBGGR16: descr = "16-bit Bayer BGBG/GRGR"; break;
1214 case V4L2_PIX_FMT_SGBRG16: descr = "16-bit Bayer GBGB/RGRG"; break;
1215 case V4L2_PIX_FMT_SGRBG16: descr = "16-bit Bayer GRGR/BGBG"; break;
1216 case V4L2_PIX_FMT_SRGGB16: descr = "16-bit Bayer RGRG/GBGB"; break;
99b74277 1217 case V4L2_PIX_FMT_SN9C20X_I420: descr = "GSPCA SN9C20X I420"; break;
ba300204
HV		 1218 case V4L2_PIX_FMT_SPCA501: descr = "GSPCA SPCA501"; break;
1219 case V4L2_PIX_FMT_SPCA505: descr = "GSPCA SPCA505"; break;
1220 case V4L2_PIX_FMT_SPCA508: descr = "GSPCA SPCA508"; break;
1221 case V4L2_PIX_FMT_STV0680: descr = "GSPCA STV0680"; break;
1222 case V4L2_PIX_FMT_TM6000: descr = "A/V + VBI Mux Packet"; break;
1223 case V4L2_PIX_FMT_CIT_YYVYUY: descr = "GSPCA CIT YYVYUY"; break;
1224 case V4L2_PIX_FMT_KONICA420: descr = "GSPCA KONICA420"; break;
66b2ab27
RRD		 1225 case V4L2_PIX_FMT_HSV24: descr = "24-bit HSV 8-8-8"; break;
1226 case V4L2_PIX_FMT_HSV32: descr = "32-bit XHSV 8-8-8-8"; break;
48fc10aa
AP		 1227 case V4L2_SDR_FMT_CU8: descr = "Complex U8"; break;
1228 case V4L2_SDR_FMT_CU16LE: descr = "Complex U16LE"; break;
ba300204
HV		 1229 case V4L2_SDR_FMT_CS8: descr = "Complex S8"; break;
1230 case V4L2_SDR_FMT_CS14LE: descr = "Complex S14LE"; break;
1231 case V4L2_SDR_FMT_RU12LE: descr = "Real U12LE"; break;
b2fe22d0
ND		 1232 case V4L2_TCH_FMT_DELTA_TD16: descr = "16-bit signed deltas"; break;
1233 case V4L2_TCH_FMT_DELTA_TD08: descr = "8-bit signed deltas"; break;
1234 case V4L2_TCH_FMT_TU16: descr = "16-bit unsigned touch data"; break;
1235 case V4L2_TCH_FMT_TU08: descr = "8-bit unsigned touch data"; break;
14d66538 1236 case V4L2_META_FMT_VSP1_HGO: descr = "R-Car VSP1 1-D Histogram"; break;
5deb1c04 1237 case V4L2_META_FMT_VSP1_HGT: descr = "R-Car VSP1 2-D Histogram"; break;
ba300204
HV		 1238
1239 default:
1240 /* Compressed formats */
1241 flags = V4L2_FMT_FLAG_COMPRESSED;
1242 switch (fmt->pixelformat) {
1243 /* Max description length mask: descr = "0123456789012345678901234567890" */
1244 case V4L2_PIX_FMT_MJPEG: descr = "Motion-JPEG"; break;
1245 case V4L2_PIX_FMT_JPEG: descr = "JFIF JPEG"; break;
1246 case V4L2_PIX_FMT_DV: descr = "1394"; break;
1247 case V4L2_PIX_FMT_MPEG: descr = "MPEG-1/2/4"; break;
1248 case V4L2_PIX_FMT_H264: descr = "H.264"; break;
1249 case V4L2_PIX_FMT_H264_NO_SC: descr = "H.264 (No Start Codes)"; break;
1250 case V4L2_PIX_FMT_H264_MVC: descr = "H.264 MVC"; break;
1251 case V4L2_PIX_FMT_H263: descr = "H.263"; break;
1252 case V4L2_PIX_FMT_MPEG1: descr = "MPEG-1 ES"; break;
1253 case V4L2_PIX_FMT_MPEG2: descr = "MPEG-2 ES"; break;
1254 case V4L2_PIX_FMT_MPEG4: descr = "MPEG-4 part 2 ES"; break;
1255 case V4L2_PIX_FMT_XVID: descr = "Xvid"; break;
1256 case V4L2_PIX_FMT_VC1_ANNEX_G: descr = "VC-1 (SMPTE 412M Annex G)"; break;
1257 case V4L2_PIX_FMT_VC1_ANNEX_L: descr = "VC-1 (SMPTE 412M Annex L)"; break;
1258 case V4L2_PIX_FMT_VP8: descr = "VP8"; break;
fa14a564 1259 case V4L2_PIX_FMT_VP9: descr = "VP9"; break;
ba300204
HV		 1260 case V4L2_PIX_FMT_CPIA1: descr = "GSPCA CPiA YUV"; break;
1261 case V4L2_PIX_FMT_WNVA: descr = "WNVA"; break;
1262 case V4L2_PIX_FMT_SN9C10X: descr = "GSPCA SN9C10X"; break;
1263 case V4L2_PIX_FMT_PWC1: descr = "Raw Philips Webcam Type (Old)"; break;
1264 case V4L2_PIX_FMT_PWC2: descr = "Raw Philips Webcam Type (New)"; break;
1265 case V4L2_PIX_FMT_ET61X251: descr = "GSPCA ET61X251"; break;
1266 case V4L2_PIX_FMT_SPCA561: descr = "GSPCA SPCA561"; break;
1267 case V4L2_PIX_FMT_PAC207: descr = "GSPCA PAC207"; break;
1268 case V4L2_PIX_FMT_MR97310A: descr = "GSPCA MR97310A"; break;
1269 case V4L2_PIX_FMT_JL2005BCD: descr = "GSPCA JL2005BCD"; break;
1270 case V4L2_PIX_FMT_SN9C2028: descr = "GSPCA SN9C2028"; break;
1271 case V4L2_PIX_FMT_SQ905C: descr = "GSPCA SQ905C"; break;
1272 case V4L2_PIX_FMT_PJPG: descr = "GSPCA PJPG"; break;
1273 case V4L2_PIX_FMT_OV511: descr = "GSPCA OV511"; break;
1274 case V4L2_PIX_FMT_OV518: descr = "GSPCA OV518"; break;
1275 case V4L2_PIX_FMT_JPGL: descr = "JPEG Lite"; break;
1276 case V4L2_PIX_FMT_SE401: descr = "GSPCA SE401"; break;
1277 case V4L2_PIX_FMT_S5C_UYVY_JPG: descr = "S5C73MX interleaved UYVY/JPEG"; break;
d4de6634 1278 case V4L2_PIX_FMT_MT21C: descr = "Mediatek Compressed Format"; break;
ba300204
HV		 1279 default:
1280 WARN(1, "Unknown pixelformat 0x%08x\n", fmt->pixelformat);
1281 if (fmt->description[0])
1282 return;
1283 flags = 0;
1284 snprintf(fmt->description, sz, "%c%c%c%c%s",
1285 (char)(fmt->pixelformat & 0x7f),
1286 (char)((fmt->pixelformat >> 8) & 0x7f),
1287 (char)((fmt->pixelformat >> 16) & 0x7f),
1288 (char)((fmt->pixelformat >> 24) & 0x7f),
1289 (fmt->pixelformat & (1 << 31)) ? "-BE" : "");
1290 break;
1291 }
1292 }
1293
1294 if (descr)
1295 WARN_ON(strlcpy(fmt->description, descr, sz) >= sz);
1296 fmt->flags = flags;
1297}
1298
be6c64e4
HV		 1299static int v4l_enum_fmt(const struct v4l2_ioctl_ops *ops,
1300 struct file *file, void *fh, void *arg)
1301{
1302 struct v4l2_fmtdesc *p = arg;
4b20259f 1303 struct video_device *vfd = video_devdata(file);
ce71bbc9
HV		 1304 bool is_vid = vfd->vfl_type == VFL_TYPE_GRABBER;
1305 bool is_sdr = vfd->vfl_type == VFL_TYPE_SDR;
b2fe22d0 1306 bool is_tch = vfd->vfl_type == VFL_TYPE_TOUCH;
4b20259f
HV		 1307 bool is_rx = vfd->vfl_dir != VFL_DIR_TX;
1308 bool is_tx = vfd->vfl_dir != VFL_DIR_RX;
ba300204 1309 int ret = -EINVAL;
be6c64e4
HV		 1310
1311 switch (p->type) {
1312 case V4L2_BUF_TYPE_VIDEO_CAPTURE:
b2fe22d0 1313 if (unlikely(!is_rx || (!is_vid && !is_tch) || !ops->vidioc_enum_fmt_vid_cap))
be6c64e4 1314 break;
ba300204
HV		 1315 ret = ops->vidioc_enum_fmt_vid_cap(file, fh, arg);
1316 break;
be6c64e4 1317 case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE:
ce71bbc9 1318 if (unlikely(!is_rx || !is_vid || !ops->vidioc_enum_fmt_vid_cap_mplane))
be6c64e4 1319 break;
ba300204
HV		 1320 ret = ops->vidioc_enum_fmt_vid_cap_mplane(file, fh, arg);
1321 break;
be6c64e4 1322 case V4L2_BUF_TYPE_VIDEO_OVERLAY:
ce71bbc9 1323 if (unlikely(!is_rx || !is_vid || !ops->vidioc_enum_fmt_vid_overlay))
be6c64e4 1324 break;
ba300204
HV		 1325 ret = ops->vidioc_enum_fmt_vid_overlay(file, fh, arg);
1326 break;
be6c64e4 1327 case V4L2_BUF_TYPE_VIDEO_OUTPUT:
ce71bbc9 1328 if (unlikely(!is_tx || !is_vid || !ops->vidioc_enum_fmt_vid_out))
be6c64e4 1329 break;
ba300204
HV		 1330 ret = ops->vidioc_enum_fmt_vid_out(file, fh, arg);
1331 break;
be6c64e4 1332 case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE:
ce71bbc9 1333 if (unlikely(!is_tx || !is_vid || !ops->vidioc_enum_fmt_vid_out_mplane))
be6c64e4 1334 break;
ba300204
HV		 1335 ret = ops->vidioc_enum_fmt_vid_out_mplane(file, fh, arg);
1336 break;
582c52cb 1337 case V4L2_BUF_TYPE_SDR_CAPTURE:
ce71bbc9 1338 if (unlikely(!is_rx || !is_sdr || !ops->vidioc_enum_fmt_sdr_cap))
582c52cb 1339 break;
ba300204
HV		 1340 ret = ops->vidioc_enum_fmt_sdr_cap(file, fh, arg);
1341 break;
9effc72f
AP		 1342 case V4L2_BUF_TYPE_SDR_OUTPUT:
1343 if (unlikely(!is_tx || !is_sdr || !ops->vidioc_enum_fmt_sdr_out))
1344 break;
1345 ret = ops->vidioc_enum_fmt_sdr_out(file, fh, arg);
1346 break;
fb9ffa6a
LP		 1347 case V4L2_BUF_TYPE_META_CAPTURE:
1348 if (unlikely(!is_rx || !is_vid || !ops->vidioc_enum_fmt_meta_cap))
1349 break;
1350 ret = ops->vidioc_enum_fmt_meta_cap(file, fh, arg);
1351 break;
be6c64e4 1352 }
ba300204
HV		 1353 if (ret == 0)
1354 v4l_fill_fmtdesc(p);
1355 return ret;
be6c64e4
HV		 1356}
1357
1358static int v4l_g_fmt(const struct v4l2_ioctl_ops *ops,
1359 struct file *file, void *fh, void *arg)
1360{
1361 struct v4l2_format *p = arg;
4b20259f
HV		 1362 struct video_device *vfd = video_devdata(file);
1363 bool is_vid = vfd->vfl_type == VFL_TYPE_GRABBER;
582c52cb 1364 bool is_sdr = vfd->vfl_type == VFL_TYPE_SDR;
b2fe22d0 1365 bool is_tch = vfd->vfl_type == VFL_TYPE_TOUCH;
4b20259f
HV		 1366 bool is_rx = vfd->vfl_dir != VFL_DIR_TX;
1367 bool is_tx = vfd->vfl_dir != VFL_DIR_RX;
d52e2381
LP		 1368 int ret;
1369
e5ce558a
HV		 1370 /*
1371 * fmt can't be cleared for these overlay types due to the 'clips'
1372 * 'clipcount' and 'bitmap' pointers in struct v4l2_window.
1373 * Those are provided by the user. So handle these two overlay types
1374 * first, and then just do a simple memset for the other types.
1375 */
1376 switch (p->type) {
1377 case V4L2_BUF_TYPE_VIDEO_OVERLAY:
1378 case V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY: {
4d1afa51 1379 struct v4l2_clip __user *clips = p->fmt.win.clips;
e5ce558a 1380 u32 clipcount = p->fmt.win.clipcount;
4d1afa51 1381 void __user *bitmap = p->fmt.win.bitmap;
e5ce558a
HV		 1382
1383 memset(&p->fmt, 0, sizeof(p->fmt));
1384 p->fmt.win.clips = clips;
1385 p->fmt.win.clipcount = clipcount;
1386 p->fmt.win.bitmap = bitmap;
1387 break;
1388 }
1389 default:
1390 memset(&p->fmt, 0, sizeof(p->fmt));
1391 break;
1392 }
1393
be6c64e4
HV		 1394 switch (p->type) {
1395 case V4L2_BUF_TYPE_VIDEO_CAPTURE:
b2fe22d0 1396 if (unlikely(!is_rx || (!is_vid && !is_tch) || !ops->vidioc_g_fmt_vid_cap))
be6c64e4 1397 break;
48f2650a 1398 p->fmt.pix.priv = V4L2_PIX_FMT_PRIV_MAGIC;
d52e2381 1399 ret = ops->vidioc_g_fmt_vid_cap(file, fh, arg);
48f2650a 1400 /* just in case the driver zeroed it again */
d52e2381
LP		 1401 p->fmt.pix.priv = V4L2_PIX_FMT_PRIV_MAGIC;
1402 return ret;
be6c64e4 1403 case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE:
4b20259f 1404 if (unlikely(!is_rx || !is_vid || !ops->vidioc_g_fmt_vid_cap_mplane))
be6c64e4
HV		 1405 break;
1406 return ops->vidioc_g_fmt_vid_cap_mplane(file, fh, arg);
1407 case V4L2_BUF_TYPE_VIDEO_OVERLAY:
4b20259f 1408 if (unlikely(!is_rx || !is_vid || !ops->vidioc_g_fmt_vid_overlay))
be6c64e4
HV		 1409 break;
1410 return ops->vidioc_g_fmt_vid_overlay(file, fh, arg);
4b20259f
HV		 1411 case V4L2_BUF_TYPE_VBI_CAPTURE:
1412 if (unlikely(!is_rx || is_vid || !ops->vidioc_g_fmt_vbi_cap))
1413 break;
1414 return ops->vidioc_g_fmt_vbi_cap(file, fh, arg);
1415 case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE:
1416 if (unlikely(!is_rx || is_vid || !ops->vidioc_g_fmt_sliced_vbi_cap))
1417 break;
1418 return ops->vidioc_g_fmt_sliced_vbi_cap(file, fh, arg);
be6c64e4 1419 case V4L2_BUF_TYPE_VIDEO_OUTPUT:
4b20259f 1420 if (unlikely(!is_tx || !is_vid || !ops->vidioc_g_fmt_vid_out))
be6c64e4 1421 break;
48f2650a 1422 p->fmt.pix.priv = V4L2_PIX_FMT_PRIV_MAGIC;
d52e2381 1423 ret = ops->vidioc_g_fmt_vid_out(file, fh, arg);
48f2650a 1424 /* just in case the driver zeroed it again */
d52e2381
LP		 1425 p->fmt.pix.priv = V4L2_PIX_FMT_PRIV_MAGIC;
1426 return ret;
be6c64e4 1427 case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE:
4b20259f 1428 if (unlikely(!is_tx || !is_vid || !ops->vidioc_g_fmt_vid_out_mplane))
be6c64e4
HV		 1429 break;
1430 return ops->vidioc_g_fmt_vid_out_mplane(file, fh, arg);
1431 case V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY:
4b20259f 1432 if (unlikely(!is_tx || !is_vid || !ops->vidioc_g_fmt_vid_out_overlay))
be6c64e4
HV		 1433 break;
1434 return ops->vidioc_g_fmt_vid_out_overlay(file, fh, arg);
be6c64e4 1435 case V4L2_BUF_TYPE_VBI_OUTPUT:
4b20259f 1436 if (unlikely(!is_tx || is_vid || !ops->vidioc_g_fmt_vbi_out))
be6c64e4
HV		 1437 break;
1438 return ops->vidioc_g_fmt_vbi_out(file, fh, arg);
be6c64e4 1439 case V4L2_BUF_TYPE_SLICED_VBI_OUTPUT:
4b20259f 1440 if (unlikely(!is_tx || is_vid || !ops->vidioc_g_fmt_sliced_vbi_out))
be6c64e4
HV		 1441 break;
1442 return ops->vidioc_g_fmt_sliced_vbi_out(file, fh, arg);
582c52cb
AP		 1443 case V4L2_BUF_TYPE_SDR_CAPTURE:
1444 if (unlikely(!is_rx || !is_sdr || !ops->vidioc_g_fmt_sdr_cap))
1445 break;
1446 return ops->vidioc_g_fmt_sdr_cap(file, fh, arg);
9effc72f
AP		 1447 case V4L2_BUF_TYPE_SDR_OUTPUT:
1448 if (unlikely(!is_tx || !is_sdr || !ops->vidioc_g_fmt_sdr_out))
1449 break;
1450 return ops->vidioc_g_fmt_sdr_out(file, fh, arg);
fb9ffa6a
LP		 1451 case V4L2_BUF_TYPE_META_CAPTURE:
1452 if (unlikely(!is_rx || !is_vid || !ops->vidioc_g_fmt_meta_cap))
1453 break;
1454 return ops->vidioc_g_fmt_meta_cap(file, fh, arg);
be6c64e4
HV		 1455 }
1456 return -EINVAL;
1457}
1458
b2fe22d0
ND		 1459static void v4l_pix_format_touch(struct v4l2_pix_format *p)
1460{
1461 /*
1462 * The v4l2_pix_format structure contains fields that make no sense for
1463 * touch. Set them to default values in this case.
1464 */
1465
1466 p->field = V4L2_FIELD_NONE;
1467 p->colorspace = V4L2_COLORSPACE_RAW;
1468 p->flags = 0;
1469 p->ycbcr_enc = 0;
1470 p->quantization = 0;
1471 p->xfer_func = 0;
1472}
1473
be6c64e4
HV		 1474static int v4l_s_fmt(const struct v4l2_ioctl_ops *ops,
1475 struct file *file, void *fh, void *arg)
1476{
1477 struct v4l2_format *p = arg;
4b20259f
HV		 1478 struct video_device *vfd = video_devdata(file);
1479 bool is_vid = vfd->vfl_type == VFL_TYPE_GRABBER;
582c52cb 1480 bool is_sdr = vfd->vfl_type == VFL_TYPE_SDR;
b2fe22d0 1481 bool is_tch = vfd->vfl_type == VFL_TYPE_TOUCH;
4b20259f
HV		 1482 bool is_rx = vfd->vfl_dir != VFL_DIR_TX;
1483 bool is_tx = vfd->vfl_dir != VFL_DIR_RX;
48f2650a 1484 int ret;
be6c64e4 1485
77fa4e07
SK		 1486 ret = v4l_enable_media_source(vfd);
1487 if (ret)
1488 return ret;
d52e2381
LP		 1489 v4l_sanitize_format(p);
1490
be6c64e4
HV		 1491 switch (p->type) {
1492 case V4L2_BUF_TYPE_VIDEO_CAPTURE:
b2fe22d0 1493 if (unlikely(!is_rx || (!is_vid && !is_tch) || !ops->vidioc_s_fmt_vid_cap))
be6c64e4
HV		 1494 break;
1495 CLEAR_AFTER_FIELD(p, fmt.pix);
48f2650a
HV		 1496 ret = ops->vidioc_s_fmt_vid_cap(file, fh, arg);
1497 /* just in case the driver zeroed it again */
1498 p->fmt.pix.priv = V4L2_PIX_FMT_PRIV_MAGIC;
b2fe22d0
ND		 1499 if (is_tch)
1500 v4l_pix_format_touch(&p->fmt.pix);
48f2650a 1501 return ret;
be6c64e4 1502 case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE:
4b20259f 1503 if (unlikely(!is_rx || !is_vid || !ops->vidioc_s_fmt_vid_cap_mplane))
be6c64e4 1504 break;
c49148e8 1505 CLEAR_AFTER_FIELD(p, fmt.pix_mp.xfer_func);
be6c64e4
HV		 1506 return ops->vidioc_s_fmt_vid_cap_mplane(file, fh, arg);
1507 case V4L2_BUF_TYPE_VIDEO_OVERLAY:
4b20259f 1508 if (unlikely(!is_rx || !is_vid || !ops->vidioc_s_fmt_vid_overlay))
be6c64e4
HV		 1509 break;
1510 CLEAR_AFTER_FIELD(p, fmt.win);
1511 return ops->vidioc_s_fmt_vid_overlay(file, fh, arg);
4b20259f
HV		 1512 case V4L2_BUF_TYPE_VBI_CAPTURE:
1513 if (unlikely(!is_rx || is_vid || !ops->vidioc_s_fmt_vbi_cap))
1514 break;
1515 CLEAR_AFTER_FIELD(p, fmt.vbi);
1516 return ops->vidioc_s_fmt_vbi_cap(file, fh, arg);
1517 case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE:
1518 if (unlikely(!is_rx || is_vid || !ops->vidioc_s_fmt_sliced_vbi_cap))
1519 break;
1520 CLEAR_AFTER_FIELD(p, fmt.sliced);
1521 return ops->vidioc_s_fmt_sliced_vbi_cap(file, fh, arg);
be6c64e4 1522 case V4L2_BUF_TYPE_VIDEO_OUTPUT:
4b20259f 1523 if (unlikely(!is_tx || !is_vid || !ops->vidioc_s_fmt_vid_out))
be6c64e4
HV		 1524 break;
1525 CLEAR_AFTER_FIELD(p, fmt.pix);
48f2650a
HV		 1526 ret = ops->vidioc_s_fmt_vid_out(file, fh, arg);
1527 /* just in case the driver zeroed it again */
1528 p->fmt.pix.priv = V4L2_PIX_FMT_PRIV_MAGIC;
1529 return ret;
be6c64e4 1530 case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE:
4b20259f 1531 if (unlikely(!is_tx || !is_vid || !ops->vidioc_s_fmt_vid_out_mplane))
be6c64e4 1532 break;
c49148e8 1533 CLEAR_AFTER_FIELD(p, fmt.pix_mp.xfer_func);
be6c64e4
HV		 1534 return ops->vidioc_s_fmt_vid_out_mplane(file, fh, arg);
1535 case V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY:
4b20259f 1536 if (unlikely(!is_tx || !is_vid || !ops->vidioc_s_fmt_vid_out_overlay))
be6c64e4
HV		 1537 break;
1538 CLEAR_AFTER_FIELD(p, fmt.win);
1539 return ops->vidioc_s_fmt_vid_out_overlay(file, fh, arg);
be6c64e4 1540 case V4L2_BUF_TYPE_VBI_OUTPUT:
4b20259f 1541 if (unlikely(!is_tx || is_vid || !ops->vidioc_s_fmt_vbi_out))
be6c64e4
HV		 1542 break;
1543 CLEAR_AFTER_FIELD(p, fmt.vbi);
1544 return ops->vidioc_s_fmt_vbi_out(file, fh, arg);
be6c64e4 1545 case V4L2_BUF_TYPE_SLICED_VBI_OUTPUT:
4b20259f 1546 if (unlikely(!is_tx || is_vid || !ops->vidioc_s_fmt_sliced_vbi_out))
be6c64e4
HV		 1547 break;
1548 CLEAR_AFTER_FIELD(p, fmt.sliced);
1549 return ops->vidioc_s_fmt_sliced_vbi_out(file, fh, arg);
582c52cb
AP		 1550 case V4L2_BUF_TYPE_SDR_CAPTURE:
1551 if (unlikely(!is_rx || !is_sdr || !ops->vidioc_s_fmt_sdr_cap))
1552 break;
1553 CLEAR_AFTER_FIELD(p, fmt.sdr);
1554 return ops->vidioc_s_fmt_sdr_cap(file, fh, arg);
9effc72f
AP		 1555 case V4L2_BUF_TYPE_SDR_OUTPUT:
1556 if (unlikely(!is_tx || !is_sdr || !ops->vidioc_s_fmt_sdr_out))
1557 break;
1558 CLEAR_AFTER_FIELD(p, fmt.sdr);
1559 return ops->vidioc_s_fmt_sdr_out(file, fh, arg);
fb9ffa6a
LP		 1560 case V4L2_BUF_TYPE_META_CAPTURE:
1561 if (unlikely(!is_rx || !is_vid || !ops->vidioc_s_fmt_meta_cap))
1562 break;
1563 CLEAR_AFTER_FIELD(p, fmt.meta);
1564 return ops->vidioc_s_fmt_meta_cap(file, fh, arg);
be6c64e4
HV		 1565 }
1566 return -EINVAL;
1567}
1568
1569static int v4l_try_fmt(const struct v4l2_ioctl_ops *ops,
1570 struct file *file, void *fh, void *arg)
1571{
1572 struct v4l2_format *p = arg;
4b20259f
HV		 1573 struct video_device *vfd = video_devdata(file);
1574 bool is_vid = vfd->vfl_type == VFL_TYPE_GRABBER;
582c52cb 1575 bool is_sdr = vfd->vfl_type == VFL_TYPE_SDR;
b2fe22d0 1576 bool is_tch = vfd->vfl_type == VFL_TYPE_TOUCH;
4b20259f
HV		 1577 bool is_rx = vfd->vfl_dir != VFL_DIR_TX;
1578 bool is_tx = vfd->vfl_dir != VFL_DIR_RX;
48f2650a 1579 int ret;
be6c64e4 1580
d52e2381
LP		 1581 v4l_sanitize_format(p);
1582
be6c64e4
HV		 1583 switch (p->type) {
1584 case V4L2_BUF_TYPE_VIDEO_CAPTURE:
b2fe22d0 1585 if (unlikely(!is_rx || (!is_vid && !is_tch) || !ops->vidioc_try_fmt_vid_cap))
be6c64e4
HV		 1586 break;
1587 CLEAR_AFTER_FIELD(p, fmt.pix);
48f2650a
HV		 1588 ret = ops->vidioc_try_fmt_vid_cap(file, fh, arg);
1589 /* just in case the driver zeroed it again */
1590 p->fmt.pix.priv = V4L2_PIX_FMT_PRIV_MAGIC;
1591 return ret;
be6c64e4 1592 case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE:
4b20259f 1593 if (unlikely(!is_rx || !is_vid || !ops->vidioc_try_fmt_vid_cap_mplane))
be6c64e4 1594 break;
c49148e8 1595 CLEAR_AFTER_FIELD(p, fmt.pix_mp.xfer_func);
be6c64e4
HV		 1596 return ops->vidioc_try_fmt_vid_cap_mplane(file, fh, arg);
1597 case V4L2_BUF_TYPE_VIDEO_OVERLAY:
4b20259f 1598 if (unlikely(!is_rx || !is_vid || !ops->vidioc_try_fmt_vid_overlay))
be6c64e4
HV		 1599 break;
1600 CLEAR_AFTER_FIELD(p, fmt.win);
1601 return ops->vidioc_try_fmt_vid_overlay(file, fh, arg);
4b20259f
HV		 1602 case V4L2_BUF_TYPE_VBI_CAPTURE:
1603 if (unlikely(!is_rx || is_vid || !ops->vidioc_try_fmt_vbi_cap))
1604 break;
1605 CLEAR_AFTER_FIELD(p, fmt.vbi);
1606 return ops->vidioc_try_fmt_vbi_cap(file, fh, arg);
1607 case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE:
1608 if (unlikely(!is_rx || is_vid || !ops->vidioc_try_fmt_sliced_vbi_cap))
1609 break;
1610 CLEAR_AFTER_FIELD(p, fmt.sliced);
1611 return ops->vidioc_try_fmt_sliced_vbi_cap(file, fh, arg);
be6c64e4 1612 case V4L2_BUF_TYPE_VIDEO_OUTPUT:
4b20259f 1613 if (unlikely(!is_tx || !is_vid || !ops->vidioc_try_fmt_vid_out))
be6c64e4
HV		 1614 break;
1615 CLEAR_AFTER_FIELD(p, fmt.pix);
48f2650a
HV		 1616 ret = ops->vidioc_try_fmt_vid_out(file, fh, arg);
1617 /* just in case the driver zeroed it again */
1618 p->fmt.pix.priv = V4L2_PIX_FMT_PRIV_MAGIC;
1619 return ret;
be6c64e4 1620 case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE:
4b20259f 1621 if (unlikely(!is_tx || !is_vid || !ops->vidioc_try_fmt_vid_out_mplane))
be6c64e4 1622 break;
c49148e8 1623 CLEAR_AFTER_FIELD(p, fmt.pix_mp.xfer_func);
be6c64e4
HV		 1624 return ops->vidioc_try_fmt_vid_out_mplane(file, fh, arg);
1625 case V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY:
4b20259f 1626 if (unlikely(!is_tx || !is_vid || !ops->vidioc_try_fmt_vid_out_overlay))
be6c64e4
HV		 1627 break;
1628 CLEAR_AFTER_FIELD(p, fmt.win);
1629 return ops->vidioc_try_fmt_vid_out_overlay(file, fh, arg);
be6c64e4 1630 case V4L2_BUF_TYPE_VBI_OUTPUT:
4b20259f 1631 if (unlikely(!is_tx || is_vid || !ops->vidioc_try_fmt_vbi_out))
be6c64e4
HV		 1632 break;
1633 CLEAR_AFTER_FIELD(p, fmt.vbi);
1634 return ops->vidioc_try_fmt_vbi_out(file, fh, arg);
be6c64e4 1635 case V4L2_BUF_TYPE_SLICED_VBI_OUTPUT:
4b20259f 1636 if (unlikely(!is_tx || is_vid || !ops->vidioc_try_fmt_sliced_vbi_out))
be6c64e4
HV		 1637 break;
1638 CLEAR_AFTER_FIELD(p, fmt.sliced);
1639 return ops->vidioc_try_fmt_sliced_vbi_out(file, fh, arg);
582c52cb
AP		 1640 case V4L2_BUF_TYPE_SDR_CAPTURE:
1641 if (unlikely(!is_rx || !is_sdr || !ops->vidioc_try_fmt_sdr_cap))
1642 break;
1643 CLEAR_AFTER_FIELD(p, fmt.sdr);
1644 return ops->vidioc_try_fmt_sdr_cap(file, fh, arg);
9effc72f
AP		 1645 case V4L2_BUF_TYPE_SDR_OUTPUT:
1646 if (unlikely(!is_tx || !is_sdr || !ops->vidioc_try_fmt_sdr_out))
1647 break;
1648 CLEAR_AFTER_FIELD(p, fmt.sdr);
1649 return ops->vidioc_try_fmt_sdr_out(file, fh, arg);
fb9ffa6a
LP		 1650 case V4L2_BUF_TYPE_META_CAPTURE:
1651 if (unlikely(!is_rx || !is_vid || !ops->vidioc_try_fmt_meta_cap))
1652 break;
1653 CLEAR_AFTER_FIELD(p, fmt.meta);
1654 return ops->vidioc_try_fmt_meta_cap(file, fh, arg);
be6c64e4
HV		 1655 }
1656 return -EINVAL;
1657}
1658
e325b244
HV		 1659static int v4l_streamon(const struct v4l2_ioctl_ops *ops,
1660 struct file *file, void *fh, void *arg)
1661{
1662 return ops->vidioc_streamon(file, fh, *(unsigned int *)arg);
1663}
1664
1665static int v4l_streamoff(const struct v4l2_ioctl_ops *ops,
1666 struct file *file, void *fh, void *arg)
1667{
1668 return ops->vidioc_streamoff(file, fh, *(unsigned int *)arg);
1669}
1670
4b1e2e4d
HV		 1671static int v4l_g_tuner(const struct v4l2_ioctl_ops *ops,
1672 struct file *file, void *fh, void *arg)
1673{
1674 struct video_device *vfd = video_devdata(file);
1675 struct v4l2_tuner *p = arg;
82b655bf 1676 int err;
4b1e2e4d
HV		 1677
1678 p->type = (vfd->vfl_type == VFL_TYPE_RADIO) ?
1679 V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV;
82b655bf
HV		 1680 err = ops->vidioc_g_tuner(file, fh, p);
1681 if (!err)
1682 p->capability |= V4L2_TUNER_CAP_FREQ_BANDS;
1683 return err;
4b1e2e4d
HV		 1684}
1685
1686static int v4l_s_tuner(const struct v4l2_ioctl_ops *ops,
1687 struct file *file, void *fh, void *arg)
1688{
1689 struct video_device *vfd = video_devdata(file);
1690 struct v4l2_tuner *p = arg;
77fa4e07 1691 int ret;
4b1e2e4d 1692
77fa4e07
SK		 1693 ret = v4l_enable_media_source(vfd);
1694 if (ret)
1695 return ret;
4b1e2e4d
HV		 1696 p->type = (vfd->vfl_type == VFL_TYPE_RADIO) ?
1697 V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV;
1698 return ops->vidioc_s_tuner(file, fh, p);
1699}
1700
82b655bf
HV		 1701static int v4l_g_modulator(const struct v4l2_ioctl_ops *ops,
1702 struct file *file, void *fh, void *arg)
1703{
4124a3c4 1704 struct video_device *vfd = video_devdata(file);
82b655bf
HV		 1705 struct v4l2_modulator *p = arg;
1706 int err;
1707
4124a3c4
AP		 1708 if (vfd->vfl_type == VFL_TYPE_RADIO)
1709 p->type = V4L2_TUNER_RADIO;
1710
82b655bf
HV		 1711 err = ops->vidioc_g_modulator(file, fh, p);
1712 if (!err)
1713 p->capability |= V4L2_TUNER_CAP_FREQ_BANDS;
1714 return err;
1715}
1716
4124a3c4
AP		 1717static int v4l_s_modulator(const struct v4l2_ioctl_ops *ops,
1718 struct file *file, void *fh, void *arg)
1719{
1720 struct video_device *vfd = video_devdata(file);
1721 struct v4l2_modulator *p = arg;
1722
1723 if (vfd->vfl_type == VFL_TYPE_RADIO)
1724 p->type = V4L2_TUNER_RADIO;
1725
1726 return ops->vidioc_s_modulator(file, fh, p);
1727}
1728
4b1e2e4d
HV		 1729static int v4l_g_frequency(const struct v4l2_ioctl_ops *ops,
1730 struct file *file, void *fh, void *arg)
1731{
1732 struct video_device *vfd = video_devdata(file);
1733 struct v4l2_frequency *p = arg;
1734
84099a28 1735 if (vfd->vfl_type == VFL_TYPE_SDR)
f3c3ecec 1736 p->type = V4L2_TUNER_SDR;
84099a28
AP		 1737 else
1738 p->type = (vfd->vfl_type == VFL_TYPE_RADIO) ?
1739 V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV;
4b1e2e4d
HV		 1740 return ops->vidioc_g_frequency(file, fh, p);
1741}
1742
1743static int v4l_s_frequency(const struct v4l2_ioctl_ops *ops,
1744 struct file *file, void *fh, void *arg)
1745{
1746 struct video_device *vfd = video_devdata(file);
b530a447 1747 const struct v4l2_frequency *p = arg;
4b1e2e4d 1748 enum v4l2_tuner_type type;
77fa4e07 1749 int ret;
4b1e2e4d 1750
77fa4e07
SK		 1751 ret = v4l_enable_media_source(vfd);
1752 if (ret)
1753 return ret;
84099a28 1754 if (vfd->vfl_type == VFL_TYPE_SDR) {
f3c3ecec 1755 if (p->type != V4L2_TUNER_SDR && p->type != V4L2_TUNER_RF)
84099a28
AP		 1756 return -EINVAL;
1757 } else {
1758 type = (vfd->vfl_type == VFL_TYPE_RADIO) ?
1759 V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV;
1760 if (type != p->type)
1761 return -EINVAL;
1762 }
4b1e2e4d
HV		 1763 return ops->vidioc_s_frequency(file, fh, p);
1764}
1765
1766static int v4l_enumstd(const struct v4l2_ioctl_ops *ops,
1767 struct file *file, void *fh, void *arg)
1768{
1769 struct video_device *vfd = video_devdata(file);
1770 struct v4l2_standard *p = arg;
1771 v4l2_std_id id = vfd->tvnorms, curr_id = 0;
1772 unsigned int index = p->index, i, j = 0;
1773 const char *descr = "";
1774
a5338190
HV		 1775 /* Return -ENODATA if the tvnorms for the current input
1776 or output is 0, meaning that it doesn't support this API. */
1777 if (id == 0)
1778 return -ENODATA;
1779
4b1e2e4d
HV		 1780 /* Return norm array in a canonical way */
1781 for (i = 0; i <= index && id; i++) {
1782 /* last std value in the standards array is 0, so this
1783 while always ends there since (id & 0) == 0. */
1784 while ((id & standards[j].std) != standards[j].std)
1785 j++;
1786 curr_id = standards[j].std;
1787 descr = standards[j].descr;
1788 j++;
1789 if (curr_id == 0)
1790 break;
1791 if (curr_id != V4L2_STD_PAL &&
1792 curr_id != V4L2_STD_SECAM &&
1793 curr_id != V4L2_STD_NTSC)
1794 id &= ~curr_id;
1795 }
1796 if (i <= index)
1797 return -EINVAL;
1798
1799 v4l2_video_std_construct(p, curr_id, descr);
1800 return 0;
1801}
1802
4b1e2e4d
HV		 1803static int v4l_s_std(const struct v4l2_ioctl_ops *ops,
1804 struct file *file, void *fh, void *arg)
1805{
1806 struct video_device *vfd = video_devdata(file);
314527ac 1807 v4l2_std_id id = *(v4l2_std_id *)arg, norm;
77fa4e07 1808 int ret;
4b1e2e4d 1809
77fa4e07
SK		 1810 ret = v4l_enable_media_source(vfd);
1811 if (ret)
1812 return ret;
314527ac 1813 norm = id & vfd->tvnorms;
4b1e2e4d
HV		 1814 if (vfd->tvnorms && !norm) /* Check if std is supported */
1815 return -EINVAL;
1816
1817 /* Calls the specific handler */
ca371575 1818 return ops->vidioc_s_std(file, fh, norm);
4b1e2e4d
HV		 1819}
1820
1821static int v4l_querystd(const struct v4l2_ioctl_ops *ops,
1822 struct file *file, void *fh, void *arg)
1823{
1824 struct video_device *vfd = video_devdata(file);
1825 v4l2_std_id *p = arg;
77fa4e07 1826 int ret;
4b1e2e4d 1827
77fa4e07
SK		 1828 ret = v4l_enable_media_source(vfd);
1829 if (ret)
1830 return ret;
4b1e2e4d 1831 /*
1a2c6866
HV		 1832 * If no signal is detected, then the driver should return
1833 * V4L2_STD_UNKNOWN. Otherwise it should return tvnorms with
1834 * any standards that do not apply removed.
1835 *
4b1e2e4d
HV		 1836 * This means that tuners, audio and video decoders can join
1837 * their efforts to improve the standards detection.
1838 */
1839 *p = vfd->tvnorms;
1840 return ops->vidioc_querystd(file, fh, arg);
1841}
1842
1843static int v4l_s_hw_freq_seek(const struct v4l2_ioctl_ops *ops,
1844 struct file *file, void *fh, void *arg)
1845{
1846 struct video_device *vfd = video_devdata(file);
1847 struct v4l2_hw_freq_seek *p = arg;
1848 enum v4l2_tuner_type type;
77fa4e07 1849 int ret;
4b1e2e4d 1850
77fa4e07
SK		 1851 ret = v4l_enable_media_source(vfd);
1852 if (ret)
1853 return ret;
84099a28
AP		 1854 /* s_hw_freq_seek is not supported for SDR for now */
1855 if (vfd->vfl_type == VFL_TYPE_SDR)
1856 return -EINVAL;
1857
4b1e2e4d
HV		 1858 type = (vfd->vfl_type == VFL_TYPE_RADIO) ?
1859 V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV;
1860 if (p->type != type)
1861 return -EINVAL;
1862 return ops->vidioc_s_hw_freq_seek(file, fh, p);
1863}
1864
737c097b
HV		 1865static int v4l_overlay(const struct v4l2_ioctl_ops *ops,
1866 struct file *file, void *fh, void *arg)
1867{
1868 return ops->vidioc_overlay(file, fh, *(unsigned int *)arg);
1869}
1870
eb3728ed
HV		 1871static int v4l_reqbufs(const struct v4l2_ioctl_ops *ops,
1872 struct file *file, void *fh, void *arg)
1873{
1874 struct v4l2_requestbuffers *p = arg;
4b20259f 1875 int ret = check_fmt(file, p->type);
eb3728ed
HV		 1876
1877 if (ret)
1878 return ret;
1879
633c98e5 1880 CLEAR_AFTER_FIELD(p, memory);
eb3728ed
HV		 1881
1882 return ops->vidioc_reqbufs(file, fh, p);
1883}
1884
1885static int v4l_querybuf(const struct v4l2_ioctl_ops *ops,
1886 struct file *file, void *fh, void *arg)
1887{
1888 struct v4l2_buffer *p = arg;
4b20259f 1889 int ret = check_fmt(file, p->type);
eb3728ed
HV		 1890
1891 return ret ? ret : ops->vidioc_querybuf(file, fh, p);
1892}
1893
1894static int v4l_qbuf(const struct v4l2_ioctl_ops *ops,
1895 struct file *file, void *fh, void *arg)
1896{
1897 struct v4l2_buffer *p = arg;
4b20259f 1898 int ret = check_fmt(file, p->type);
eb3728ed
HV		 1899
1900 return ret ? ret : ops->vidioc_qbuf(file, fh, p);
1901}
1902
1903static int v4l_dqbuf(const struct v4l2_ioctl_ops *ops,
1904 struct file *file, void *fh, void *arg)
1905{
1906 struct v4l2_buffer *p = arg;
4b20259f 1907 int ret = check_fmt(file, p->type);
eb3728ed
HV		 1908
1909 return ret ? ret : ops->vidioc_dqbuf(file, fh, p);
1910}
1911
1912static int v4l_create_bufs(const struct v4l2_ioctl_ops *ops,
1913 struct file *file, void *fh, void *arg)
1914{
1915 struct v4l2_create_buffers *create = arg;
4b20259f 1916 int ret = check_fmt(file, create->format.type);
eb3728ed 1917
d52e2381
LP		 1918 if (ret)
1919 return ret;
1920
5d351251
HV		 1921 CLEAR_AFTER_FIELD(create, format);
1922
d52e2381
LP		 1923 v4l_sanitize_format(&create->format);
1924
1925 ret = ops->vidioc_create_bufs(file, fh, create);
1926
1927 if (create->format.type == V4L2_BUF_TYPE_VIDEO_CAPTURE ||
1928 create->format.type == V4L2_BUF_TYPE_VIDEO_OUTPUT)
1929 create->format.fmt.pix.priv = V4L2_PIX_FMT_PRIV_MAGIC;
1930
1931 return ret;
eb3728ed
HV		 1932}
1933
1934static int v4l_prepare_buf(const struct v4l2_ioctl_ops *ops,
1935 struct file *file, void *fh, void *arg)
1936{
1937 struct v4l2_buffer *b = arg;
4b20259f 1938 int ret = check_fmt(file, b->type);
eb3728ed
HV		 1939
1940 return ret ? ret : ops->vidioc_prepare_buf(file, fh, b);
1941}
1942
1943static int v4l_g_parm(const struct v4l2_ioctl_ops *ops,
1944 struct file *file, void *fh, void *arg)
1945{
eb3728ed
HV		 1946 struct v4l2_streamparm *p = arg;
1947 v4l2_std_id std;
4b20259f 1948 int ret = check_fmt(file, p->type);
eb3728ed
HV		 1949
1950 if (ret)
1951 return ret;
1952 if (ops->vidioc_g_parm)
1953 return ops->vidioc_g_parm(file, fh, p);
eb3728ed
HV		 1954 if (p->type != V4L2_BUF_TYPE_VIDEO_CAPTURE &&
1955 p->type != V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE)
1956 return -EINVAL;
1957 p->parm.capture.readbuffers = 2;
ca371575 1958 ret = ops->vidioc_g_std(file, fh, &std);
eb3728ed 1959 if (ret == 0)
ca371575 1960 v4l2_video_std_frame_period(std, &p->parm.capture.timeperframe);
eb3728ed
HV		 1961 return ret;
1962}
1963
1964static int v4l_s_parm(const struct v4l2_ioctl_ops *ops,
1965 struct file *file, void *fh, void *arg)
1966{
1967 struct v4l2_streamparm *p = arg;
4b20259f 1968 int ret = check_fmt(file, p->type);
eb3728ed
HV		 1969
1970 return ret ? ret : ops->vidioc_s_parm(file, fh, p);
1971}
1972
efbceecd
HV		 1973static int v4l_queryctrl(const struct v4l2_ioctl_ops *ops,
1974 struct file *file, void *fh, void *arg)
1975{
1976 struct video_device *vfd = video_devdata(file);
1977 struct v4l2_queryctrl *p = arg;
7a3ed2d9
HV		 1978 struct v4l2_fh *vfh =
1979 test_bit(V4L2_FL_USES_V4L2_FH, &vfd->flags) ? fh : NULL;
efbceecd
HV		 1980
1981 if (vfh && vfh->ctrl_handler)
1982 return v4l2_queryctrl(vfh->ctrl_handler, p);
1983 if (vfd->ctrl_handler)
1984 return v4l2_queryctrl(vfd->ctrl_handler, p);
1985 if (ops->vidioc_queryctrl)
1986 return ops->vidioc_queryctrl(file, fh, p);
1987 return -ENOTTY;
1988}
1989
e6bee368
HV		 1990static int v4l_query_ext_ctrl(const struct v4l2_ioctl_ops *ops,
1991 struct file *file, void *fh, void *arg)
1992{
1993 struct video_device *vfd = video_devdata(file);
1994 struct v4l2_query_ext_ctrl *p = arg;
1995 struct v4l2_fh *vfh =
1996 test_bit(V4L2_FL_USES_V4L2_FH, &vfd->flags) ? fh : NULL;
1997
1998 if (vfh && vfh->ctrl_handler)
1999 return v4l2_query_ext_ctrl(vfh->ctrl_handler, p);
2000 if (vfd->ctrl_handler)
2001 return v4l2_query_ext_ctrl(vfd->ctrl_handler, p);
2002 if (ops->vidioc_query_ext_ctrl)
2003 return ops->vidioc_query_ext_ctrl(file, fh, p);
2004 return -ENOTTY;
2005}
2006
efbceecd
HV		 2007static int v4l_querymenu(const struct v4l2_ioctl_ops *ops,
2008 struct file *file, void *fh, void *arg)
2009{
2010 struct video_device *vfd = video_devdata(file);
2011 struct v4l2_querymenu *p = arg;
7a3ed2d9
HV		 2012 struct v4l2_fh *vfh =
2013 test_bit(V4L2_FL_USES_V4L2_FH, &vfd->flags) ? fh : NULL;
efbceecd
HV		 2014
2015 if (vfh && vfh->ctrl_handler)
2016 return v4l2_querymenu(vfh->ctrl_handler, p);
2017 if (vfd->ctrl_handler)
2018 return v4l2_querymenu(vfd->ctrl_handler, p);
2019 if (ops->vidioc_querymenu)
2020 return ops->vidioc_querymenu(file, fh, p);
2021 return -ENOTTY;
2022}
2023
2024static int v4l_g_ctrl(const struct v4l2_ioctl_ops *ops,
2025 struct file *file, void *fh, void *arg)
2026{
2027 struct video_device *vfd = video_devdata(file);
2028 struct v4l2_control *p = arg;
7a3ed2d9
HV		 2029 struct v4l2_fh *vfh =
2030 test_bit(V4L2_FL_USES_V4L2_FH, &vfd->flags) ? fh : NULL;
efbceecd
HV		 2031 struct v4l2_ext_controls ctrls;
2032 struct v4l2_ext_control ctrl;
2033
2034 if (vfh && vfh->ctrl_handler)
2035 return v4l2_g_ctrl(vfh->ctrl_handler, p);
2036 if (vfd->ctrl_handler)
2037 return v4l2_g_ctrl(vfd->ctrl_handler, p);
2038 if (ops->vidioc_g_ctrl)
2039 return ops->vidioc_g_ctrl(file, fh, p);
2040 if (ops->vidioc_g_ext_ctrls == NULL)
2041 return -ENOTTY;
2042
0f8017be 2043 ctrls.which = V4L2_CTRL_ID2WHICH(p->id);
efbceecd
HV		 2044 ctrls.count = 1;
2045 ctrls.controls = &ctrl;
2046 ctrl.id = p->id;
2047 ctrl.value = p->value;
2048 if (check_ext_ctrls(&ctrls, 1)) {
2049 int ret = ops->vidioc_g_ext_ctrls(file, fh, &ctrls);
2050
2051 if (ret == 0)
2052 p->value = ctrl.value;
2053 return ret;
2054 }
2055 return -EINVAL;
2056}
2057
2058static int v4l_s_ctrl(const struct v4l2_ioctl_ops *ops,
2059 struct file *file, void *fh, void *arg)
2060{
2061 struct video_device *vfd = video_devdata(file);
2062 struct v4l2_control *p = arg;
7a3ed2d9
HV		 2063 struct v4l2_fh *vfh =
2064 test_bit(V4L2_FL_USES_V4L2_FH, &vfd->flags) ? fh : NULL;
efbceecd
HV		 2065 struct v4l2_ext_controls ctrls;
2066 struct v4l2_ext_control ctrl;
2067
2068 if (vfh && vfh->ctrl_handler)
2069 return v4l2_s_ctrl(vfh, vfh->ctrl_handler, p);
2070 if (vfd->ctrl_handler)
2071 return v4l2_s_ctrl(NULL, vfd->ctrl_handler, p);
2072 if (ops->vidioc_s_ctrl)
2073 return ops->vidioc_s_ctrl(file, fh, p);
2074 if (ops->vidioc_s_ext_ctrls == NULL)
2075 return -ENOTTY;
2076
0f8017be 2077 ctrls.which = V4L2_CTRL_ID2WHICH(p->id);
efbceecd
HV		 2078 ctrls.count = 1;
2079 ctrls.controls = &ctrl;
2080 ctrl.id = p->id;
2081 ctrl.value = p->value;
2082 if (check_ext_ctrls(&ctrls, 1))
2083 return ops->vidioc_s_ext_ctrls(file, fh, &ctrls);
2084 return -EINVAL;
2085}
2086
2087static int v4l_g_ext_ctrls(const struct v4l2_ioctl_ops *ops,
2088 struct file *file, void *fh, void *arg)
2089{
2090 struct video_device *vfd = video_devdata(file);
2091 struct v4l2_ext_controls *p = arg;
7a3ed2d9
HV		 2092 struct v4l2_fh *vfh =
2093 test_bit(V4L2_FL_USES_V4L2_FH, &vfd->flags) ? fh : NULL;
efbceecd
HV		 2094
2095 p->error_idx = p->count;
2096 if (vfh && vfh->ctrl_handler)
2097 return v4l2_g_ext_ctrls(vfh->ctrl_handler, p);
2098 if (vfd->ctrl_handler)
2099 return v4l2_g_ext_ctrls(vfd->ctrl_handler, p);
2100 if (ops->vidioc_g_ext_ctrls == NULL)
2101 return -ENOTTY;
2102 return check_ext_ctrls(p, 0) ? ops->vidioc_g_ext_ctrls(file, fh, p) :
2103 -EINVAL;
2104}
2105
2106static int v4l_s_ext_ctrls(const struct v4l2_ioctl_ops *ops,
2107 struct file *file, void *fh, void *arg)
2108{
2109 struct video_device *vfd = video_devdata(file);
2110 struct v4l2_ext_controls *p = arg;
7a3ed2d9
HV		 2111 struct v4l2_fh *vfh =
2112 test_bit(V4L2_FL_USES_V4L2_FH, &vfd->flags) ? fh : NULL;
efbceecd
HV		 2113
2114 p->error_idx = p->count;
2115 if (vfh && vfh->ctrl_handler)
2116 return v4l2_s_ext_ctrls(vfh, vfh->ctrl_handler, p);
2117 if (vfd->ctrl_handler)
2118 return v4l2_s_ext_ctrls(NULL, vfd->ctrl_handler, p);
2119 if (ops->vidioc_s_ext_ctrls == NULL)
2120 return -ENOTTY;
2121 return check_ext_ctrls(p, 0) ? ops->vidioc_s_ext_ctrls(file, fh, p) :
2122 -EINVAL;
2123}
2124
2125static int v4l_try_ext_ctrls(const struct v4l2_ioctl_ops *ops,
2126 struct file *file, void *fh, void *arg)
2127{
2128 struct video_device *vfd = video_devdata(file);
2129 struct v4l2_ext_controls *p = arg;
7a3ed2d9
HV		 2130 struct v4l2_fh *vfh =
2131 test_bit(V4L2_FL_USES_V4L2_FH, &vfd->flags) ? fh : NULL;
efbceecd
HV		 2132
2133 p->error_idx = p->count;
2134 if (vfh && vfh->ctrl_handler)
2135 return v4l2_try_ext_ctrls(vfh->ctrl_handler, p);
2136 if (vfd->ctrl_handler)
2137 return v4l2_try_ext_ctrls(vfd->ctrl_handler, p);
2138 if (ops->vidioc_try_ext_ctrls == NULL)
2139 return -ENOTTY;
2140 return check_ext_ctrls(p, 0) ? ops->vidioc_try_ext_ctrls(file, fh, p) :
2141 -EINVAL;
2142}
2143
d84f2d94
HV		 2144static int v4l_g_crop(const struct v4l2_ioctl_ops *ops,
2145 struct file *file, void *fh, void *arg)
2146{
2147 struct v4l2_crop *p = arg;
2148 struct v4l2_selection s = {
2149 .type = p->type,
2150 };
2151 int ret;
2152
2153 if (ops->vidioc_g_crop)
2154 return ops->vidioc_g_crop(file, fh, p);
2155 /* simulate capture crop using selection api */
2156
2157 /* crop means compose for output devices */
2158 if (V4L2_TYPE_IS_OUTPUT(p->type))
2159 s.target = V4L2_SEL_TGT_COMPOSE_ACTIVE;
2160 else
2161 s.target = V4L2_SEL_TGT_CROP_ACTIVE;
2162
2163 ret = ops->vidioc_g_selection(file, fh, &s);
2164
2165 /* copying results to old structure on success */
2166 if (!ret)
2167 p->c = s.r;
2168 return ret;
2169}
2170
2171static int v4l_s_crop(const struct v4l2_ioctl_ops *ops,
2172 struct file *file, void *fh, void *arg)
2173{
2174 struct v4l2_crop *p = arg;
2175 struct v4l2_selection s = {
2176 .type = p->type,
2177 .r = p->c,
2178 };
2179
2180 if (ops->vidioc_s_crop)
2181 return ops->vidioc_s_crop(file, fh, p);
2182 /* simulate capture crop using selection api */
2183
2184 /* crop means compose for output devices */
2185 if (V4L2_TYPE_IS_OUTPUT(p->type))
2186 s.target = V4L2_SEL_TGT_COMPOSE_ACTIVE;
2187 else
2188 s.target = V4L2_SEL_TGT_CROP_ACTIVE;
2189
2190 return ops->vidioc_s_selection(file, fh, &s);
2191}
2192
2193static int v4l_cropcap(const struct v4l2_ioctl_ops *ops,
2194 struct file *file, void *fh, void *arg)
2195{
2196 struct v4l2_cropcap *p = arg;
95dd7b7e
HV		 2197 struct v4l2_selection s = { .type = p->type };
2198 int ret = 0;
d84f2d94 2199
95dd7b7e
HV		 2200 /* setting trivial pixelaspect */
2201 p->pixelaspect.numerator = 1;
2202 p->pixelaspect.denominator = 1;
d84f2d94 2203
95dd7b7e
HV		 2204 /*
2205 * The determine_valid_ioctls() call already should ensure
2206 * that this can never happen, but just in case...
2207 */
1ca830b1 2208 if (WARN_ON(!ops->vidioc_cropcap && !ops->vidioc_g_selection))
95dd7b7e 2209 return -ENOTTY;
d84f2d94 2210
95dd7b7e
HV		 2211 if (ops->vidioc_cropcap)
2212 ret = ops->vidioc_cropcap(file, fh, p);
d84f2d94 2213
95dd7b7e
HV		 2214 if (!ops->vidioc_g_selection)
2215 return ret;
d84f2d94 2216
95dd7b7e
HV		 2217 /*
2218 * Ignore ENOTTY or ENOIOCTLCMD error returns, just use the
2219 * square pixel aspect ratio in that case.
2220 */
2221 if (ret && ret != -ENOTTY && ret != -ENOIOCTLCMD)
2222 return ret;
d84f2d94 2223
95dd7b7e 2224 /* Use g_selection() to fill in the bounds and defrect rectangles */
9409945c 2225
95dd7b7e
HV		 2226 /* obtaining bounds */
2227 if (V4L2_TYPE_IS_OUTPUT(p->type))
2228 s.target = V4L2_SEL_TGT_COMPOSE_BOUNDS;
2229 else
2230 s.target = V4L2_SEL_TGT_CROP_BOUNDS;
2231
2232 ret = ops->vidioc_g_selection(file, fh, &s);
2233 if (ret)
2234 return ret;
2235 p->bounds = s.r;
2236
2237 /* obtaining defrect */
2238 if (V4L2_TYPE_IS_OUTPUT(p->type))
2239 s.target = V4L2_SEL_TGT_COMPOSE_DEFAULT;
2240 else
2241 s.target = V4L2_SEL_TGT_CROP_DEFAULT;
2242
2243 ret = ops->vidioc_g_selection(file, fh, &s);
2244 if (ret)
2245 return ret;
2246 p->defrect = s.r;
9409945c 2247
d84f2d94
HV		 2248 return 0;
2249}
2250
f16f77b0
HV		 2251static int v4l_log_status(const struct v4l2_ioctl_ops *ops,
2252 struct file *file, void *fh, void *arg)
2253{
2254 struct video_device *vfd = video_devdata(file);
2255 int ret;
2256
2257 if (vfd->v4l2_dev)
2258 pr_info("%s: ================= START STATUS =================\n",
2259 vfd->v4l2_dev->name);
2260 ret = ops->vidioc_log_status(file, fh);
2261 if (vfd->v4l2_dev)
2262 pr_info("%s: ================== END STATUS ==================\n",
2263 vfd->v4l2_dev->name);
2264 return ret;
2265}
2266
2267static int v4l_dbg_g_register(const struct v4l2_ioctl_ops *ops,
2268 struct file *file, void *fh, void *arg)
2269{
2270#ifdef CONFIG_VIDEO_ADV_DEBUG
2271 struct v4l2_dbg_register *p = arg;
79b0c640
HV		 2272 struct video_device *vfd = video_devdata(file);
2273 struct v4l2_subdev *sd;
2274 int idx = 0;
f16f77b0
HV		 2275
2276 if (!capable(CAP_SYS_ADMIN))
2277 return -EPERM;
3eef2510 2278 if (p->match.type == V4L2_CHIP_MATCH_SUBDEV) {
79b0c640
HV		 2279 if (vfd->v4l2_dev == NULL)
2280 return -EINVAL;
3eef2510
HV		 2281 v4l2_device_for_each_subdev(sd, vfd->v4l2_dev)
2282 if (p->match.addr == idx++)
79b0c640 2283 return v4l2_subdev_call(sd, core, g_register, p);
79b0c640
HV		 2284 return -EINVAL;
2285 }
191b79b0
HV		 2286 if (ops->vidioc_g_register && p->match.type == V4L2_CHIP_MATCH_BRIDGE &&
2287 (ops->vidioc_g_chip_info || p->match.addr == 0))
79b0c640
HV		 2288 return ops->vidioc_g_register(file, fh, p);
2289 return -EINVAL;
f16f77b0
HV		 2290#else
2291 return -ENOTTY;
2292#endif
2293}
2294
2295static int v4l_dbg_s_register(const struct v4l2_ioctl_ops *ops,
2296 struct file *file, void *fh, void *arg)
2297{
2298#ifdef CONFIG_VIDEO_ADV_DEBUG
977ba3b1 2299 const struct v4l2_dbg_register *p = arg;
79b0c640
HV		 2300 struct video_device *vfd = video_devdata(file);
2301 struct v4l2_subdev *sd;
2302 int idx = 0;
f16f77b0
HV		 2303
2304 if (!capable(CAP_SYS_ADMIN))
2305 return -EPERM;
3eef2510 2306 if (p->match.type == V4L2_CHIP_MATCH_SUBDEV) {
79b0c640
HV		 2307 if (vfd->v4l2_dev == NULL)
2308 return -EINVAL;
3eef2510
HV		 2309 v4l2_device_for_each_subdev(sd, vfd->v4l2_dev)
2310 if (p->match.addr == idx++)
79b0c640 2311 return v4l2_subdev_call(sd, core, s_register, p);
79b0c640
HV		 2312 return -EINVAL;
2313 }
191b79b0
HV		 2314 if (ops->vidioc_s_register && p->match.type == V4L2_CHIP_MATCH_BRIDGE &&
2315 (ops->vidioc_g_chip_info || p->match.addr == 0))
79b0c640
HV		 2316 return ops->vidioc_s_register(file, fh, p);
2317 return -EINVAL;
f16f77b0
HV		 2318#else
2319 return -ENOTTY;
2320#endif
2321}
2322
96b03d2a 2323static int v4l_dbg_g_chip_info(const struct v4l2_ioctl_ops *ops,
79b0c640
HV		 2324 struct file *file, void *fh, void *arg)
2325{
cd634f1b 2326#ifdef CONFIG_VIDEO_ADV_DEBUG
79b0c640 2327 struct video_device *vfd = video_devdata(file);
96b03d2a 2328 struct v4l2_dbg_chip_info *p = arg;
79b0c640
HV		 2329 struct v4l2_subdev *sd;
2330 int idx = 0;
2331
2332 switch (p->match.type) {
2333 case V4L2_CHIP_MATCH_BRIDGE:
79b0c640
HV		 2334 if (ops->vidioc_s_register)
2335 p->flags |= V4L2_CHIP_FL_WRITABLE;
2336 if (ops->vidioc_g_register)
2337 p->flags |= V4L2_CHIP_FL_READABLE;
1c1d86a1 2338 strlcpy(p->name, vfd->v4l2_dev->name, sizeof(p->name));
96b03d2a
HV		 2339 if (ops->vidioc_g_chip_info)
2340 return ops->vidioc_g_chip_info(file, fh, arg);
0f0fe4b9
HV		 2341 if (p->match.addr)
2342 return -EINVAL;
79b0c640
HV		 2343 return 0;
2344
3eef2510 2345 case V4L2_CHIP_MATCH_SUBDEV:
79b0c640
HV		 2346 if (vfd->v4l2_dev == NULL)
2347 break;
2348 v4l2_device_for_each_subdev(sd, vfd->v4l2_dev) {
3eef2510
HV		 2349 if (p->match.addr != idx++)
2350 continue;
2351 if (sd->ops->core && sd->ops->core->s_register)
2352 p->flags |= V4L2_CHIP_FL_WRITABLE;
2353 if (sd->ops->core && sd->ops->core->g_register)
2354 p->flags |= V4L2_CHIP_FL_READABLE;
2355 strlcpy(p->name, sd->name, sizeof(p->name));
2356 return 0;
79b0c640
HV		 2357 }
2358 break;
2359 }
2360 return -EINVAL;
cd634f1b
HV		 2361#else
2362 return -ENOTTY;
2363#endif
79b0c640
HV		 2364}
2365
458aa4a6
HV		 2366static int v4l_dqevent(const struct v4l2_ioctl_ops *ops,
2367 struct file *file, void *fh, void *arg)
2368{
2369 return v4l2_event_dequeue(fh, arg, file->f_flags & O_NONBLOCK);
2370}
2371
2372static int v4l_subscribe_event(const struct v4l2_ioctl_ops *ops,
2373 struct file *file, void *fh, void *arg)
2374{
2375 return ops->vidioc_subscribe_event(fh, arg);
2376}
2377
2378static int v4l_unsubscribe_event(const struct v4l2_ioctl_ops *ops,
2379 struct file *file, void *fh, void *arg)
2380{
2381 return ops->vidioc_unsubscribe_event(fh, arg);
2382}
2383
2384static int v4l_g_sliced_vbi_cap(const struct v4l2_ioctl_ops *ops,
2385 struct file *file, void *fh, void *arg)
2386{
2387 struct v4l2_sliced_vbi_cap *p = arg;
4b20259f
HV		 2388 int ret = check_fmt(file, p->type);
2389
2390 if (ret)
2391 return ret;
458aa4a6
HV		 2392
2393 /* Clear up to type, everything after type is zeroed already */
2394 memset(p, 0, offsetof(struct v4l2_sliced_vbi_cap, type));
2395
2396 return ops->vidioc_g_sliced_vbi_cap(file, fh, p);
2397}
2398
82b655bf
HV		 2399static int v4l_enum_freq_bands(const struct v4l2_ioctl_ops *ops,
2400 struct file *file, void *fh, void *arg)
2401{
2402 struct video_device *vfd = video_devdata(file);
2403 struct v4l2_frequency_band *p = arg;
2404 enum v4l2_tuner_type type;
2405 int err;
2406
84099a28 2407 if (vfd->vfl_type == VFL_TYPE_SDR) {
f3c3ecec 2408 if (p->type != V4L2_TUNER_SDR && p->type != V4L2_TUNER_RF)
84099a28
AP		 2409 return -EINVAL;
2410 type = p->type;
2411 } else {
2412 type = (vfd->vfl_type == VFL_TYPE_RADIO) ?
2413 V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV;
2414 if (type != p->type)
2415 return -EINVAL;
2416 }
a7f404af
HV		 2417 if (ops->vidioc_enum_freq_bands) {
2418 err = ops->vidioc_enum_freq_bands(file, fh, p);
2419 if (err != -ENOTTY)
2420 return err;
2421 }
73f35418 2422 if (is_valid_ioctl(vfd, VIDIOC_G_TUNER)) {
82b655bf
HV		 2423 struct v4l2_tuner t = {
2424 .index = p->tuner,
2425 .type = type,
2426 };
2427
aa4d9b53
HV		 2428 if (p->index)
2429 return -EINVAL;
82b655bf
HV		 2430 err = ops->vidioc_g_tuner(file, fh, &t);
2431 if (err)
2432 return err;
2433 p->capability = t.capability | V4L2_TUNER_CAP_FREQ_BANDS;
2434 p->rangelow = t.rangelow;
2435 p->rangehigh = t.rangehigh;
2436 p->modulation = (type == V4L2_TUNER_RADIO) ?
2437 V4L2_BAND_MODULATION_FM : V4L2_BAND_MODULATION_VSB;
2438 return 0;
2439 }
73f35418 2440 if (is_valid_ioctl(vfd, VIDIOC_G_MODULATOR)) {
82b655bf
HV		 2441 struct v4l2_modulator m = {
2442 .index = p->tuner,
2443 };
2444
2445 if (type != V4L2_TUNER_RADIO)
2446 return -EINVAL;
aa4d9b53
HV		 2447 if (p->index)
2448 return -EINVAL;
82b655bf
HV		 2449 err = ops->vidioc_g_modulator(file, fh, &m);
2450 if (err)
2451 return err;
2452 p->capability = m.capability | V4L2_TUNER_CAP_FREQ_BANDS;
2453 p->rangelow = m.rangelow;
2454 p->rangehigh = m.rangehigh;
2455 p->modulation = (type == V4L2_TUNER_RADIO) ?
2456 V4L2_BAND_MODULATION_FM : V4L2_BAND_MODULATION_VSB;
2457 return 0;
2458 }
2459 return -ENOTTY;
2460}
2461
4839e6c2
HV		 2462struct v4l2_ioctl_info {
2463 unsigned int ioctl;
27cd2aba 2464 u32 flags;
4839e6c2 2465 const char * const name;
86748f35
HV		 2466 union {
2467 u32 offset;
2468 int (*func)(const struct v4l2_ioctl_ops *ops,
2469 struct file *file, void *fh, void *p);
26ddcbcc 2470 } u;
86748f35 2471 void (*debug)(const void *arg, bool write_only);
4839e6c2
HV		 2472};
2473
2474/* This control needs a priority check */
2475#define INFO_FL_PRIO (1 << 0)
2476/* This control can be valid if the filehandle passes a control handler. */
2477#define INFO_FL_CTRL (1 << 1)
86748f35
HV		 2478/* This is a standard ioctl, no need for special code */
2479#define INFO_FL_STD (1 << 2)
2480/* This is ioctl has its own function */
2481#define INFO_FL_FUNC (1 << 3)
5a5adf6b
HV		 2482/* Queuing ioctl */
2483#define INFO_FL_QUEUE (1 << 4)
27cd2aba
HV		 2484/* Zero struct from after the field to the end */
2485#define INFO_FL_CLEAR(v4l2_struct, field) \
2486 ((offsetof(struct v4l2_struct, field) + \
2487 sizeof(((struct v4l2_struct *)0)->field)) << 16)
2488#define INFO_FL_CLEAR_MASK (_IOC_SIZEMASK << 16)
4839e6c2 2489
86748f35
HV		 2490#define IOCTL_INFO_STD(_ioctl, _vidioc, _debug, _flags) \
2491 [_IOC_NR(_ioctl)] = { \
2492 .ioctl = _ioctl, \
2493 .flags = _flags | INFO_FL_STD, \
2494 .name = #_ioctl, \
26ddcbcc 2495 .u.offset = offsetof(struct v4l2_ioctl_ops, _vidioc), \
86748f35
HV		 2496 .debug = _debug, \
2497 }
2498
2499#define IOCTL_INFO_FNC(_ioctl, _func, _debug, _flags) \
2500 [_IOC_NR(_ioctl)] = { \
2501 .ioctl = _ioctl, \
2502 .flags = _flags | INFO_FL_FUNC, \
2503 .name = #_ioctl, \
26ddcbcc 2504 .u.func = _func, \
86748f35
HV		 2505 .debug = _debug, \
2506 }
2507
4839e6c2 2508static struct v4l2_ioctl_info v4l2_ioctls[] = {
59076122 2509 IOCTL_INFO_FNC(VIDIOC_QUERYCAP, v4l_querycap, v4l_print_querycap, 0),
be6c64e4 2510 IOCTL_INFO_FNC(VIDIOC_ENUM_FMT, v4l_enum_fmt, v4l_print_fmtdesc, INFO_FL_CLEAR(v4l2_fmtdesc, type)),
e5ce558a 2511 IOCTL_INFO_FNC(VIDIOC_G_FMT, v4l_g_fmt, v4l_print_format, 0),
be6c64e4 2512 IOCTL_INFO_FNC(VIDIOC_S_FMT, v4l_s_fmt, v4l_print_format, INFO_FL_PRIO),
5a5adf6b
HV		 2513 IOCTL_INFO_FNC(VIDIOC_REQBUFS, v4l_reqbufs, v4l_print_requestbuffers, INFO_FL_PRIO | INFO_FL_QUEUE),
2514 IOCTL_INFO_FNC(VIDIOC_QUERYBUF, v4l_querybuf, v4l_print_buffer, INFO_FL_QUEUE | INFO_FL_CLEAR(v4l2_buffer, length)),
be6c64e4
HV		 2515 IOCTL_INFO_STD(VIDIOC_G_FBUF, vidioc_g_fbuf, v4l_print_framebuffer, 0),
2516 IOCTL_INFO_STD(VIDIOC_S_FBUF, vidioc_s_fbuf, v4l_print_framebuffer, INFO_FL_PRIO),
737c097b 2517 IOCTL_INFO_FNC(VIDIOC_OVERLAY, v4l_overlay, v4l_print_u32, INFO_FL_PRIO),
5a5adf6b 2518 IOCTL_INFO_FNC(VIDIOC_QBUF, v4l_qbuf, v4l_print_buffer, INFO_FL_QUEUE),
b799d09a 2519 IOCTL_INFO_STD(VIDIOC_EXPBUF, vidioc_expbuf, v4l_print_exportbuffer, INFO_FL_QUEUE | INFO_FL_CLEAR(v4l2_exportbuffer, flags)),
5a5adf6b
HV		 2520 IOCTL_INFO_FNC(VIDIOC_DQBUF, v4l_dqbuf, v4l_print_buffer, INFO_FL_QUEUE),
2521 IOCTL_INFO_FNC(VIDIOC_STREAMON, v4l_streamon, v4l_print_buftype, INFO_FL_PRIO | INFO_FL_QUEUE),
2522 IOCTL_INFO_FNC(VIDIOC_STREAMOFF, v4l_streamoff, v4l_print_buftype, INFO_FL_PRIO | INFO_FL_QUEUE),
eb3728ed
HV		 2523 IOCTL_INFO_FNC(VIDIOC_G_PARM, v4l_g_parm, v4l_print_streamparm, INFO_FL_CLEAR(v4l2_streamparm, type)),
2524 IOCTL_INFO_FNC(VIDIOC_S_PARM, v4l_s_parm, v4l_print_streamparm, INFO_FL_PRIO),
ca371575 2525 IOCTL_INFO_STD(VIDIOC_G_STD, vidioc_g_std, v4l_print_std, 0),
4b1e2e4d
HV		 2526 IOCTL_INFO_FNC(VIDIOC_S_STD, v4l_s_std, v4l_print_std, INFO_FL_PRIO),
2527 IOCTL_INFO_FNC(VIDIOC_ENUMSTD, v4l_enumstd, v4l_print_standard, INFO_FL_CLEAR(v4l2_standard, index)),
59076122 2528 IOCTL_INFO_FNC(VIDIOC_ENUMINPUT, v4l_enuminput, v4l_print_enuminput, INFO_FL_CLEAR(v4l2_input, index)),
efbceecd
HV		 2529 IOCTL_INFO_FNC(VIDIOC_G_CTRL, v4l_g_ctrl, v4l_print_control, INFO_FL_CTRL | INFO_FL_CLEAR(v4l2_control, id)),
2530 IOCTL_INFO_FNC(VIDIOC_S_CTRL, v4l_s_ctrl, v4l_print_control, INFO_FL_PRIO | INFO_FL_CTRL),
4b1e2e4d
HV		 2531 IOCTL_INFO_FNC(VIDIOC_G_TUNER, v4l_g_tuner, v4l_print_tuner, INFO_FL_CLEAR(v4l2_tuner, index)),
2532 IOCTL_INFO_FNC(VIDIOC_S_TUNER, v4l_s_tuner, v4l_print_tuner, INFO_FL_PRIO),
59076122
HV		 2533 IOCTL_INFO_STD(VIDIOC_G_AUDIO, vidioc_g_audio, v4l_print_audio, 0),
2534 IOCTL_INFO_STD(VIDIOC_S_AUDIO, vidioc_s_audio, v4l_print_audio, INFO_FL_PRIO),
efbceecd
HV		 2535 IOCTL_INFO_FNC(VIDIOC_QUERYCTRL, v4l_queryctrl, v4l_print_queryctrl, INFO_FL_CTRL | INFO_FL_CLEAR(v4l2_queryctrl, id)),
2536 IOCTL_INFO_FNC(VIDIOC_QUERYMENU, v4l_querymenu, v4l_print_querymenu, INFO_FL_CTRL | INFO_FL_CLEAR(v4l2_querymenu, index)),
59076122
HV		 2537 IOCTL_INFO_STD(VIDIOC_G_INPUT, vidioc_g_input, v4l_print_u32, 0),
2538 IOCTL_INFO_FNC(VIDIOC_S_INPUT, v4l_s_input, v4l_print_u32, INFO_FL_PRIO),
f9402a94
HV		 2539 IOCTL_INFO_STD(VIDIOC_G_EDID, vidioc_g_edid, v4l_print_edid, 0),
2540 IOCTL_INFO_STD(VIDIOC_S_EDID, vidioc_s_edid, v4l_print_edid, INFO_FL_PRIO),
59076122
HV		 2541 IOCTL_INFO_STD(VIDIOC_G_OUTPUT, vidioc_g_output, v4l_print_u32, 0),
2542 IOCTL_INFO_FNC(VIDIOC_S_OUTPUT, v4l_s_output, v4l_print_u32, INFO_FL_PRIO),
2543 IOCTL_INFO_FNC(VIDIOC_ENUMOUTPUT, v4l_enumoutput, v4l_print_enumoutput, INFO_FL_CLEAR(v4l2_output, index)),
2544 IOCTL_INFO_STD(VIDIOC_G_AUDOUT, vidioc_g_audout, v4l_print_audioout, 0),
2545 IOCTL_INFO_STD(VIDIOC_S_AUDOUT, vidioc_s_audout, v4l_print_audioout, INFO_FL_PRIO),
82b655bf 2546 IOCTL_INFO_FNC(VIDIOC_G_MODULATOR, v4l_g_modulator, v4l_print_modulator, INFO_FL_CLEAR(v4l2_modulator, index)),
4124a3c4 2547 IOCTL_INFO_FNC(VIDIOC_S_MODULATOR, v4l_s_modulator, v4l_print_modulator, INFO_FL_PRIO),
4b1e2e4d
HV		 2548 IOCTL_INFO_FNC(VIDIOC_G_FREQUENCY, v4l_g_frequency, v4l_print_frequency, INFO_FL_CLEAR(v4l2_frequency, tuner)),
2549 IOCTL_INFO_FNC(VIDIOC_S_FREQUENCY, v4l_s_frequency, v4l_print_frequency, INFO_FL_PRIO),
d84f2d94
HV		 2550 IOCTL_INFO_FNC(VIDIOC_CROPCAP, v4l_cropcap, v4l_print_cropcap, INFO_FL_CLEAR(v4l2_cropcap, type)),
2551 IOCTL_INFO_FNC(VIDIOC_G_CROP, v4l_g_crop, v4l_print_crop, INFO_FL_CLEAR(v4l2_crop, type)),
2552 IOCTL_INFO_FNC(VIDIOC_S_CROP, v4l_s_crop, v4l_print_crop, INFO_FL_PRIO),
865c4642
HV		 2553 IOCTL_INFO_STD(VIDIOC_G_SELECTION, vidioc_g_selection, v4l_print_selection, INFO_FL_CLEAR(v4l2_selection, r)),
2554 IOCTL_INFO_STD(VIDIOC_S_SELECTION, vidioc_s_selection, v4l_print_selection, INFO_FL_PRIO | INFO_FL_CLEAR(v4l2_selection, r)),
d806f2df
HV		 2555 IOCTL_INFO_STD(VIDIOC_G_JPEGCOMP, vidioc_g_jpegcomp, v4l_print_jpegcompression, 0),
2556 IOCTL_INFO_STD(VIDIOC_S_JPEGCOMP, vidioc_s_jpegcomp, v4l_print_jpegcompression, INFO_FL_PRIO),
4b1e2e4d 2557 IOCTL_INFO_FNC(VIDIOC_QUERYSTD, v4l_querystd, v4l_print_std, 0),
be6c64e4 2558 IOCTL_INFO_FNC(VIDIOC_TRY_FMT, v4l_try_fmt, v4l_print_format, 0),
59076122
HV		 2559 IOCTL_INFO_STD(VIDIOC_ENUMAUDIO, vidioc_enumaudio, v4l_print_audio, INFO_FL_CLEAR(v4l2_audio, index)),
2560 IOCTL_INFO_STD(VIDIOC_ENUMAUDOUT, vidioc_enumaudout, v4l_print_audioout, INFO_FL_CLEAR(v4l2_audioout, index)),
d0547cba
HV		 2561 IOCTL_INFO_FNC(VIDIOC_G_PRIORITY, v4l_g_priority, v4l_print_u32, 0),
2562 IOCTL_INFO_FNC(VIDIOC_S_PRIORITY, v4l_s_priority, v4l_print_u32, INFO_FL_PRIO),
458aa4a6 2563 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 2564 IOCTL_INFO_FNC(VIDIOC_LOG_STATUS, v4l_log_status, v4l_print_newline, 0),
efbceecd
HV		 2565 IOCTL_INFO_FNC(VIDIOC_G_EXT_CTRLS, v4l_g_ext_ctrls, v4l_print_ext_controls, INFO_FL_CTRL),
2566 IOCTL_INFO_FNC(VIDIOC_S_EXT_CTRLS, v4l_s_ext_ctrls, v4l_print_ext_controls, INFO_FL_PRIO | INFO_FL_CTRL),
9bc31633 2567 IOCTL_INFO_FNC(VIDIOC_TRY_EXT_CTRLS, v4l_try_ext_ctrls, v4l_print_ext_controls, INFO_FL_CTRL),
458aa4a6
HV		 2568 IOCTL_INFO_STD(VIDIOC_ENUM_FRAMESIZES, vidioc_enum_framesizes, v4l_print_frmsizeenum, INFO_FL_CLEAR(v4l2_frmsizeenum, pixel_format)),
2569 IOCTL_INFO_STD(VIDIOC_ENUM_FRAMEINTERVALS, vidioc_enum_frameintervals, v4l_print_frmivalenum, INFO_FL_CLEAR(v4l2_frmivalenum, height)),
d806f2df
HV		 2570 IOCTL_INFO_STD(VIDIOC_G_ENC_INDEX, vidioc_g_enc_index, v4l_print_enc_idx, 0),
2571 IOCTL_INFO_STD(VIDIOC_ENCODER_CMD, vidioc_encoder_cmd, v4l_print_encoder_cmd, INFO_FL_PRIO | INFO_FL_CLEAR(v4l2_encoder_cmd, flags)),
2572 IOCTL_INFO_STD(VIDIOC_TRY_ENCODER_CMD, vidioc_try_encoder_cmd, v4l_print_encoder_cmd, INFO_FL_CLEAR(v4l2_encoder_cmd, flags)),
2573 IOCTL_INFO_STD(VIDIOC_DECODER_CMD, vidioc_decoder_cmd, v4l_print_decoder_cmd, INFO_FL_PRIO),
2574 IOCTL_INFO_STD(VIDIOC_TRY_DECODER_CMD, vidioc_try_decoder_cmd, v4l_print_decoder_cmd, 0),
f16f77b0
HV		 2575 IOCTL_INFO_FNC(VIDIOC_DBG_S_REGISTER, v4l_dbg_s_register, v4l_print_dbg_register, 0),
2576 IOCTL_INFO_FNC(VIDIOC_DBG_G_REGISTER, v4l_dbg_g_register, v4l_print_dbg_register, 0),
4b1e2e4d 2577 IOCTL_INFO_FNC(VIDIOC_S_HW_FREQ_SEEK, v4l_s_hw_freq_seek, v4l_print_hw_freq_seek, INFO_FL_PRIO),
f932af80 2578 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 2579 IOCTL_INFO_STD(VIDIOC_G_DV_TIMINGS, vidioc_g_dv_timings, v4l_print_dv_timings, 0),
458aa4a6
HV		 2580 IOCTL_INFO_FNC(VIDIOC_DQEVENT, v4l_dqevent, v4l_print_event, 0),
2581 IOCTL_INFO_FNC(VIDIOC_SUBSCRIBE_EVENT, v4l_subscribe_event, v4l_print_event_subscription, 0),
2582 IOCTL_INFO_FNC(VIDIOC_UNSUBSCRIBE_EVENT, v4l_unsubscribe_event, v4l_print_event_subscription, 0),
5a5adf6b
HV		 2583 IOCTL_INFO_FNC(VIDIOC_CREATE_BUFS, v4l_create_bufs, v4l_print_create_buffers, INFO_FL_PRIO | INFO_FL_QUEUE),
2584 IOCTL_INFO_FNC(VIDIOC_PREPARE_BUF, v4l_prepare_buf, v4l_print_buffer, INFO_FL_QUEUE),
f932af80 2585 IOCTL_INFO_STD(VIDIOC_ENUM_DV_TIMINGS, vidioc_enum_dv_timings, v4l_print_enum_dv_timings, INFO_FL_CLEAR(v4l2_enum_dv_timings, pad)),
efc626b0 2586 IOCTL_INFO_STD(VIDIOC_QUERY_DV_TIMINGS, vidioc_query_dv_timings, v4l_print_dv_timings, 0),
a1acb8f9 2587 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 2588 IOCTL_INFO_FNC(VIDIOC_ENUM_FREQ_BANDS, v4l_enum_freq_bands, v4l_print_freq_band, 0),
96b03d2a 2589 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 2590 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		 2591};
2592#define V4L2_IOCTLS ARRAY_SIZE(v4l2_ioctls)
2593
2594bool v4l2_is_known_ioctl(unsigned int cmd)
2595{
2596 if (_IOC_NR(cmd) >= V4L2_IOCTLS)
2597 return false;
2598 return v4l2_ioctls[_IOC_NR(cmd)].ioctl == cmd;
2599}
2600
5a5adf6b
HV		 2601struct mutex *v4l2_ioctl_get_lock(struct video_device *vdev, unsigned cmd)
2602{
2603 if (_IOC_NR(cmd) >= V4L2_IOCTLS)
2604 return vdev->lock;
2605 if (test_bit(_IOC_NR(cmd), vdev->disable_locking))
2606 return NULL;
2607 if (vdev->queue && vdev->queue->lock &&
2608 (v4l2_ioctls[_IOC_NR(cmd)].flags & INFO_FL_QUEUE))
2609 return vdev->queue->lock;
2610 return vdev->lock;
2611}
2612
4839e6c2
HV		 2613/* Common ioctl debug function. This function can be used by
2614 external ioctl messages as well as internal V4L ioctl */
4a085168 2615void v4l_printk_ioctl(const char *prefix, unsigned int cmd)
4839e6c2 2616{
86748f35 2617 const char *dir, *type;
4839e6c2 2618
4a085168
HV		 2619 if (prefix)
2620 printk(KERN_DEBUG "%s: ", prefix);
2621
4839e6c2
HV		 2622 switch (_IOC_TYPE(cmd)) {
2623 case 'd':
2624 type = "v4l2_int";
2625 break;
2626 case 'V':
2627 if (_IOC_NR(cmd) >= V4L2_IOCTLS) {
2628 type = "v4l2";
2629 break;
2630 }
86748f35 2631 pr_cont("%s", v4l2_ioctls[_IOC_NR(cmd)].name);
4839e6c2
HV		 2632 return;
2633 default:
2634 type = "unknown";
86748f35 2635 break;
4839e6c2
HV		 2636 }
2637
2638 switch (_IOC_DIR(cmd)) {
2639 case _IOC_NONE: dir = "--"; break;
2640 case _IOC_READ: dir = "r-"; break;
2641 case _IOC_WRITE: dir = "-w"; break;
2642 case _IOC_READ | _IOC_WRITE: dir = "rw"; break;
2643 default: dir = "*ERR*"; break;
2644 }
86748f35 2645 pr_cont("%s ioctl '%c', dir=%s, #%d (0x%08x)",
4839e6c2
HV		 2646 type, _IOC_TYPE(cmd), dir, _IOC_NR(cmd), cmd);
2647}
2648EXPORT_SYMBOL(v4l_printk_ioctl);
2649
069b7479 2650static long __video_do_ioctl(struct file *file,
35ea11ff
HV		 2651 unsigned int cmd, void *arg)
2652{
2653 struct video_device *vfd = video_devdata(file);
a399810c 2654 const struct v4l2_ioctl_ops *ops = vfd->ioctl_ops;
86748f35
HV		 2655 bool write_only = false;
2656 struct v4l2_ioctl_info default_info;
2657 const struct v4l2_ioctl_info *info;
d5fbf32f 2658 void *fh = file->private_data;
99cd47bc 2659 struct v4l2_fh *vfh = NULL;
17028cdb 2660 int dev_debug = vfd->dev_debug;
9190d191 2661 long ret = -ENOTTY;
35ea11ff 2662
6a717883 2663 if (ops == NULL) {
4a085168
HV		 2664 pr_warn("%s: has no ioctl_ops.\n",
2665 video_device_node_name(vfd));
9190d191 2666 return ret;
6a717883
HV		 2667 }
2668
b7284bb0 2669 if (test_bit(V4L2_FL_USES_V4L2_FH, &vfd->flags))
99cd47bc
HV		 2670 vfh = file->private_data;
2671
48ea0be0 2672 if (v4l2_is_known_ioctl(cmd)) {
86748f35 2673 info = &v4l2_ioctls[_IOC_NR(cmd)];
48ea0be0 2674
2e5e435f 2675 if (!test_bit(_IOC_NR(cmd), vfd->valid_ioctls) &&
48ea0be0 2676 !((info->flags & INFO_FL_CTRL) && vfh && vfh->ctrl_handler))
86748f35 2677 goto done;
4b902fec 2678
b7284bb0 2679 if (vfh && (info->flags & INFO_FL_PRIO)) {
4b902fec
HV		 2680 ret = v4l2_prio_check(vfd->prio, vfh->prio);
2681 if (ret)
86748f35 2682 goto done;
4b902fec 2683 }
86748f35
HV		 2684 } else {
2685 default_info.ioctl = cmd;
2686 default_info.flags = 0;
f18d8e07 2687 default_info.debug = v4l_print_default;
86748f35 2688 info = &default_info;
48ea0be0
HV		 2689 }
2690
86748f35 2691 write_only = _IOC_DIR(cmd) == _IOC_WRITE;
86748f35
HV		 2692 if (info->flags & INFO_FL_STD) {
2693 typedef int (*vidioc_op)(struct file *file, void *fh, void *p);
2694 const void *p = vfd->ioctl_ops;
26ddcbcc 2695 const vidioc_op *vidioc = p + info->u.offset;
86748f35
HV		 2696
2697 ret = (*vidioc)(file, fh, arg);
86748f35 2698 } else if (info->flags & INFO_FL_FUNC) {
26ddcbcc 2699 ret = info->u.func(ops, file, fh, arg);
f18d8e07
HV		 2700 } else if (!ops->vidioc_default) {
2701 ret = -ENOTTY;
2702 } else {
2703 ret = ops->vidioc_default(file, fh,
b7284bb0 2704 vfh ? v4l2_prio_check(vfd->prio, vfh->prio) >= 0 : 0,
f18d8e07 2705 cmd, arg);
48ea0be0 2706 }
99cd47bc 2707
86748f35 2708done:
17028cdb
HV		 2709 if (dev_debug & (V4L2_DEV_DEBUG_IOCTL | V4L2_DEV_DEBUG_IOCTL_ARG)) {
2710 if (!(dev_debug & V4L2_DEV_DEBUG_STREAMING) &&
2711 (cmd == VIDIOC_QBUF || cmd == VIDIOC_DQBUF))
2712 return ret;
2713
4a085168 2714 v4l_printk_ioctl(video_device_node_name(vfd), cmd);
86748f35 2715 if (ret < 0)
505d04bd 2716 pr_cont(": error %ld", ret);
17028cdb 2717 if (!(dev_debug & V4L2_DEV_DEBUG_IOCTL_ARG))
86748f35 2718 pr_cont("\n");
86748f35
HV		 2719 else if (_IOC_DIR(cmd) == _IOC_NONE)
2720 info->debug(arg, write_only);
2721 else {
2722 pr_cont(": ");
2723 info->debug(arg, write_only);
35ea11ff
HV		 2724 }
2725 }
2726
2727 return ret;
2728}
2729
d14e6d76 2730static int check_array_args(unsigned int cmd, void *parg, size_t *array_size,
ba2d35c1 2731 void __user **user_ptr, void ***kernel_ptr)
d14e6d76
PO		 2732{
2733 int ret = 0;
2734
2735 switch (cmd) {
96b1a702 2736 case VIDIOC_PREPARE_BUF:
d14e6d76
PO		 2737 case VIDIOC_QUERYBUF:
2738 case VIDIOC_QBUF:
2739 case VIDIOC_DQBUF: {
2740 struct v4l2_buffer *buf = parg;
2741
2742 if (V4L2_TYPE_IS_MULTIPLANAR(buf->type) && buf->length > 0) {
2743 if (buf->length > VIDEO_MAX_PLANES) {
2744 ret = -EINVAL;
2745 break;
2746 }
2747 *user_ptr = (void __user *)buf->m.planes;
ba2d35c1 2748 *kernel_ptr = (void **)&buf->m.planes;
d14e6d76
PO		 2749 *array_size = sizeof(struct v4l2_plane) * buf->length;
2750 ret = 1;
2751 }
2752 break;
2753 }
2754
dd519bb3
HV		 2755 case VIDIOC_G_EDID:
2756 case VIDIOC_S_EDID: {
2757 struct v4l2_edid *edid = parg;
ed45ce2c
HV		 2758
2759 if (edid->blocks) {
1b8b10cc
HV		 2760 if (edid->blocks > 256) {
2761 ret = -EINVAL;
2762 break;
2763 }
ed45ce2c 2764 *user_ptr = (void __user *)edid->edid;
ba2d35c1 2765 *kernel_ptr = (void **)&edid->edid;
ed45ce2c
HV		 2766 *array_size = edid->blocks * 128;
2767 ret = 1;
2768 }
2769 break;
2770 }
2771
d14e6d76
PO		 2772 case VIDIOC_S_EXT_CTRLS:
2773 case VIDIOC_G_EXT_CTRLS:
2774 case VIDIOC_TRY_EXT_CTRLS: {
2775 struct v4l2_ext_controls *ctrls = parg;
2776
2777 if (ctrls->count != 0) {
6c06108b
DC		 2778 if (ctrls->count > V4L2_CID_MAX_CTRLS) {
2779 ret = -EINVAL;
2780 break;
2781 }
d14e6d76 2782 *user_ptr = (void __user *)ctrls->controls;
ba2d35c1 2783 *kernel_ptr = (void **)&ctrls->controls;
d14e6d76
PO		 2784 *array_size = sizeof(struct v4l2_ext_control)
2785 * ctrls->count;
2786 ret = 1;
2787 }
2788 break;
2789 }
2790 }
2791
2792 return ret;
2793}
2794
fc0a8079
LP		 2795long
2796video_usercopy(struct file *file, unsigned int cmd, unsigned long arg,
2797 v4l2_kioctl func)
35ea11ff
HV		 2798{
2799 char sbuf[128];
2800 void *mbuf = NULL;
1d94aa36 2801 void *parg = (void *)arg;
069b7479 2802 long err = -EINVAL;
d14e6d76
PO		 2803 bool has_array_args;
2804 size_t array_size = 0;
35ea11ff 2805 void __user *user_ptr = NULL;
d14e6d76 2806 void **kernel_ptr = NULL;
35ea11ff 2807
35ea11ff 2808 /* Copy arguments into temp kernel buffer */
337f9d20 2809 if (_IOC_DIR(cmd) != _IOC_NONE) {
35ea11ff
HV		 2810 if (_IOC_SIZE(cmd) <= sizeof(sbuf)) {
2811 parg = sbuf;
2812 } else {
2813 /* too big to allocate from stack */
2814 mbuf = kmalloc(_IOC_SIZE(cmd), GFP_KERNEL);
2815 if (NULL == mbuf)
2816 return -ENOMEM;
2817 parg = mbuf;
2818 }
2819
2820 err = -EFAULT;
19c96e4b 2821 if (_IOC_DIR(cmd) & _IOC_WRITE) {
27cd2aba
HV		 2822 unsigned int n = _IOC_SIZE(cmd);
2823
2824 /*
2825 * In some cases, only a few fields are used as input,
2826 * i.e. when the app sets "index" and then the driver
2827 * fills in the rest of the structure for the thing
2828 * with that index. We only need to copy up the first
2829 * non-input field.
2830 */
2831 if (v4l2_is_known_ioctl(cmd)) {
2832 u32 flags = v4l2_ioctls[_IOC_NR(cmd)].flags;
2833 if (flags & INFO_FL_CLEAR_MASK)
2834 n = (flags & INFO_FL_CLEAR_MASK) >> 16;
2835 }
19c96e4b
TP		 2836
2837 if (copy_from_user(parg, (void __user *)arg, n))
35ea11ff 2838 goto out;
19c96e4b
TP		 2839
2840 /* zero out anything we don't copy from userspace */
2841 if (n < _IOC_SIZE(cmd))
2842 memset((u8 *)parg + n, 0, _IOC_SIZE(cmd) - n);
337f9d20
TP		 2843 } else {
2844 /* read-only ioctl */
2845 memset(parg, 0, _IOC_SIZE(cmd));
19c96e4b 2846 }
35ea11ff
HV		 2847 }
2848
d14e6d76
PO		 2849 err = check_array_args(cmd, parg, &array_size, &user_ptr, &kernel_ptr);
2850 if (err < 0)
2851 goto out;
2852 has_array_args = err;
35ea11ff 2853
d14e6d76
PO		 2854 if (has_array_args) {
2855 /*
2856 * When adding new types of array args, make sure that the
2857 * parent argument to ioctl (which contains the pointer to the
2858 * array) fits into sbuf (so that mbuf will still remain
2859 * unused up to here).
2860 */
2861 mbuf = kmalloc(array_size, GFP_KERNEL);
2862 err = -ENOMEM;
2863 if (NULL == mbuf)
2864 goto out_array_args;
2865 err = -EFAULT;
2866 if (copy_from_user(mbuf, user_ptr, array_size))
2867 goto out_array_args;
2868 *kernel_ptr = mbuf;
35ea11ff
HV		 2869 }
2870
2871 /* Handles IOCTL */
fc0a8079 2872 err = func(file, cmd, parg);
35ea11ff 2873 if (err == -ENOIOCTLCMD)
02bbb814 2874 err = -ENOTTY;
aa32f4c0
HV		 2875 if (err == 0) {
2876 if (cmd == VIDIOC_DQBUF)
2877 trace_v4l2_dqbuf(video_devdata(file)->minor, parg);
2878 else if (cmd == VIDIOC_QBUF)
2879 trace_v4l2_qbuf(video_devdata(file)->minor, parg);
2880 }
35ea11ff 2881
d14e6d76 2882 if (has_array_args) {
ba2d35c1 2883 *kernel_ptr = (void __force *)user_ptr;
d14e6d76 2884 if (copy_to_user(user_ptr, mbuf, array_size))
35ea11ff 2885 err = -EFAULT;
d14e6d76 2886 goto out_array_args;
35ea11ff 2887 }
5d7758ee
HV		 2888 /* VIDIOC_QUERY_DV_TIMINGS can return an error, but still have valid
2889 results that must be returned. */
2890 if (err < 0 && cmd != VIDIOC_QUERY_DV_TIMINGS)
35ea11ff
HV		 2891 goto out;
2892
d14e6d76 2893out_array_args:
35ea11ff
HV		 2894 /* Copy results into user buffer */
2895 switch (_IOC_DIR(cmd)) {
2896 case _IOC_READ:
2897 case (_IOC_WRITE | _IOC_READ):
2898 if (copy_to_user((void __user *)arg, parg, _IOC_SIZE(cmd)))
2899 err = -EFAULT;
2900 break;
2901 }
2902
2903out:
2904 kfree(mbuf);
2905 return err;
2906}
fc0a8079
LP		 2907EXPORT_SYMBOL(video_usercopy);
2908
2909long video_ioctl2(struct file *file,
2910 unsigned int cmd, unsigned long arg)
2911{
2912 return video_usercopy(file, cmd, arg, __video_do_ioctl);
2913}
8a522c91 2914EXPORT_SYMBOL(video_ioctl2);
ubuntu-bionic-kernel mirror