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[mirror_ubuntu-bionic-kernel.git] / drivers / media / v4l2-core / v4l2-ioctl.c
CommitLineData
35ea11ff
HV		 1/*
2 * Video capture interface for Linux version 2
3 *
4 * A generic framework to process V4L2 ioctl commands.
5 *
6 * This program is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU General Public License
8 * as published by the Free Software Foundation; either version
9 * 2 of the License, or (at your option) any later version.
10 *
d9b01449 11 * Authors: Alan Cox, <alan@lxorguk.ukuu.org.uk> (version 1)
35ea11ff
HV		 12 * Mauro Carvalho Chehab <mchehab@infradead.org> (version 2)
13 */
14
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",
35ea11ff
HV		 158};
159EXPORT_SYMBOL(v4l2_type_names);
160
161static const char *v4l2_memory_names[] = {
162 [V4L2_MEMORY_MMAP] = "mmap",
163 [V4L2_MEMORY_USERPTR] = "userptr",
164 [V4L2_MEMORY_OVERLAY] = "overlay",
051c7788 165 [V4L2_MEMORY_DMABUF] = "dmabuf",
35ea11ff
HV		 166};
167
d9246240 168#define prt_names(a, arr) (((unsigned)(a)) < ARRAY_SIZE(arr) ? arr[a] : "unknown")
35ea11ff
HV		 169
170/* ------------------------------------------------------------------ */
171/* debug help functions */
8ab75e3e 172
59076122
HV		 173static void v4l_print_querycap(const void *arg, bool write_only)
174{
175 const struct v4l2_capability *p = arg;
176
8720427c 177 pr_cont("driver=%.*s, card=%.*s, bus=%.*s, version=0x%08x, capabilities=0x%08x, device_caps=0x%08x\n",
27d5a87c
HV		 178 (int)sizeof(p->driver), p->driver,
179 (int)sizeof(p->card), p->card,
180 (int)sizeof(p->bus_info), p->bus_info,
59076122
HV		 181 p->version, p->capabilities, p->device_caps);
182}
183
184static void v4l_print_enuminput(const void *arg, bool write_only)
185{
186 const struct v4l2_input *p = arg;
187
8720427c 188 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		 189 p->index, (int)sizeof(p->name), p->name, p->type, p->audioset,
190 p->tuner, (unsigned long long)p->std, p->status,
191 p->capabilities);
59076122
HV		 192}
193
194static void v4l_print_enumoutput(const void *arg, bool write_only)
195{
196 const struct v4l2_output *p = arg;
197
8720427c 198 pr_cont("index=%u, name=%.*s, type=%u, audioset=0x%x, modulator=%u, std=0x%08Lx, capabilities=0x%x\n",
27d5a87c
HV		 199 p->index, (int)sizeof(p->name), p->name, p->type, p->audioset,
200 p->modulator, (unsigned long long)p->std, p->capabilities);
59076122
HV		 201}
202
203static void v4l_print_audio(const void *arg, bool write_only)
204{
205 const struct v4l2_audio *p = arg;
206
207 if (write_only)
208 pr_cont("index=%u, mode=0x%x\n", p->index, p->mode);
209 else
27d5a87c
HV		 210 pr_cont("index=%u, name=%.*s, capability=0x%x, mode=0x%x\n",
211 p->index, (int)sizeof(p->name), p->name,
212 p->capability, p->mode);
59076122
HV		 213}
214
215static void v4l_print_audioout(const void *arg, bool write_only)
216{
217 const struct v4l2_audioout *p = arg;
218
219 if (write_only)
220 pr_cont("index=%u\n", p->index);
221 else
27d5a87c
HV		 222 pr_cont("index=%u, name=%.*s, capability=0x%x, mode=0x%x\n",
223 p->index, (int)sizeof(p->name), p->name,
224 p->capability, p->mode);
59076122
HV		 225}
226
be6c64e4
HV		 227static void v4l_print_fmtdesc(const void *arg, bool write_only)
228{
229 const struct v4l2_fmtdesc *p = arg;
230
27d5a87c 231 pr_cont("index=%u, type=%s, flags=0x%x, pixelformat=%c%c%c%c, description='%.*s'\n",
be6c64e4
HV		 232 p->index, prt_names(p->type, v4l2_type_names),
233 p->flags, (p->pixelformat & 0xff),
234 (p->pixelformat >> 8) & 0xff,
235 (p->pixelformat >> 16) & 0xff,
236 (p->pixelformat >> 24) & 0xff,
27d5a87c 237 (int)sizeof(p->description), p->description);
be6c64e4
HV		 238}
239
240static void v4l_print_format(const void *arg, bool write_only)
241{
242 const struct v4l2_format *p = arg;
243 const struct v4l2_pix_format *pix;
244 const struct v4l2_pix_format_mplane *mp;
245 const struct v4l2_vbi_format *vbi;
246 const struct v4l2_sliced_vbi_format *sliced;
247 const struct v4l2_window *win;
87185c95 248 const struct v4l2_sdr_format *sdr;
be6c64e4
HV		 249 unsigned i;
250
251 pr_cont("type=%s", prt_names(p->type, v4l2_type_names));
252 switch (p->type) {
253 case V4L2_BUF_TYPE_VIDEO_CAPTURE:
254 case V4L2_BUF_TYPE_VIDEO_OUTPUT:
255 pix = &p->fmt.pix;
8720427c 256 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		 257 pix->width, pix->height,
258 (pix->pixelformat & 0xff),
259 (pix->pixelformat >> 8) & 0xff,
260 (pix->pixelformat >> 16) & 0xff,
261 (pix->pixelformat >> 24) & 0xff,
262 prt_names(pix->field, v4l2_field_names),
263 pix->bytesperline, pix->sizeimage,
736d96b5 264 pix->colorspace, pix->flags, pix->ycbcr_enc,
74fdcb2e 265 pix->quantization, pix->xfer_func);
be6c64e4
HV		 266 break;
267 case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE:
268 case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE:
269 mp = &p->fmt.pix_mp;
8720427c 270 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		 271 mp->width, mp->height,
272 (mp->pixelformat & 0xff),
273 (mp->pixelformat >> 8) & 0xff,
274 (mp->pixelformat >> 16) & 0xff,
275 (mp->pixelformat >> 24) & 0xff,
276 prt_names(mp->field, v4l2_field_names),
736d96b5 277 mp->colorspace, mp->num_planes, mp->flags,
74fdcb2e 278 mp->ycbcr_enc, mp->quantization, mp->xfer_func);
be6c64e4
HV		 279 for (i = 0; i < mp->num_planes; i++)
280 printk(KERN_DEBUG "plane %u: bytesperline=%u sizeimage=%u\n", i,
281 mp->plane_fmt[i].bytesperline,
282 mp->plane_fmt[i].sizeimage);
283 break;
284 case V4L2_BUF_TYPE_VIDEO_OVERLAY:
285 case V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY:
286 win = &p->fmt.win;
560dde24
HV		 287 /* Note: we can't print the clip list here since the clips
288 * pointer is a userspace pointer, not a kernelspace
289 * pointer. */
290 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",
291 win->w.width, win->w.height, win->w.left, win->w.top,
be6c64e4 292 prt_names(win->field, v4l2_field_names),
560dde24
HV		 293 win->chromakey, win->clipcount, win->clips,
294 win->bitmap, win->global_alpha);
be6c64e4
HV		 295 break;
296 case V4L2_BUF_TYPE_VBI_CAPTURE:
297 case V4L2_BUF_TYPE_VBI_OUTPUT:
298 vbi = &p->fmt.vbi;
8720427c 299 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		 300 vbi->sampling_rate, vbi->offset,
301 vbi->samples_per_line,
302 (vbi->sample_format & 0xff),
303 (vbi->sample_format >> 8) & 0xff,
304 (vbi->sample_format >> 16) & 0xff,
305 (vbi->sample_format >> 24) & 0xff,
306 vbi->start[0], vbi->start[1],
307 vbi->count[0], vbi->count[1]);
308 break;
309 case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE:
310 case V4L2_BUF_TYPE_SLICED_VBI_OUTPUT:
311 sliced = &p->fmt.sliced;
312 pr_cont(", service_set=0x%08x, io_size=%d\n",
313 sliced->service_set, sliced->io_size);
314 for (i = 0; i < 24; i++)
315 printk(KERN_DEBUG "line[%02u]=0x%04x, 0x%04x\n", i,
316 sliced->service_lines[0][i],
317 sliced->service_lines[1][i]);
318 break;
582c52cb 319 case V4L2_BUF_TYPE_SDR_CAPTURE:
9effc72f 320 case V4L2_BUF_TYPE_SDR_OUTPUT:
582c52cb
AP		 321 sdr = &p->fmt.sdr;
322 pr_cont(", pixelformat=%c%c%c%c\n",
323 (sdr->pixelformat >> 0) & 0xff,
324 (sdr->pixelformat >> 8) & 0xff,
325 (sdr->pixelformat >> 16) & 0xff,
326 (sdr->pixelformat >> 24) & 0xff);
327 break;
be6c64e4
HV		 328 }
329}
330
331static void v4l_print_framebuffer(const void *arg, bool write_only)
332{
333 const struct v4l2_framebuffer *p = arg;
334
8720427c 335 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		 336 p->capability, p->flags, p->base,
337 p->fmt.width, p->fmt.height,
338 (p->fmt.pixelformat & 0xff),
339 (p->fmt.pixelformat >> 8) & 0xff,
340 (p->fmt.pixelformat >> 16) & 0xff,
341 (p->fmt.pixelformat >> 24) & 0xff,
342 p->fmt.bytesperline, p->fmt.sizeimage,
343 p->fmt.colorspace);
344}
345
e325b244
HV		 346static void v4l_print_buftype(const void *arg, bool write_only)
347{
348 pr_cont("type=%s\n", prt_names(*(u32 *)arg, v4l2_type_names));
349}
350
4b1e2e4d
HV		 351static void v4l_print_modulator(const void *arg, bool write_only)
352{
353 const struct v4l2_modulator *p = arg;
354
355 if (write_only)
560dde24 356 pr_cont("index=%u, txsubchans=0x%x\n", p->index, p->txsubchans);
4b1e2e4d 357 else
8720427c 358 pr_cont("index=%u, name=%.*s, capability=0x%x, rangelow=%u, rangehigh=%u, txsubchans=0x%x\n",
27d5a87c 359 p->index, (int)sizeof(p->name), p->name, p->capability,
4b1e2e4d
HV		 360 p->rangelow, p->rangehigh, p->txsubchans);
361}
362
363static void v4l_print_tuner(const void *arg, bool write_only)
364{
365 const struct v4l2_tuner *p = arg;
366
367 if (write_only)
368 pr_cont("index=%u, audmode=%u\n", p->index, p->audmode);
369 else
8720427c 370 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 371 p->index, (int)sizeof(p->name), p->name, p->type,
4b1e2e4d
HV		 372 p->capability, p->rangelow,
373 p->rangehigh, p->signal, p->afc,
374 p->rxsubchans, p->audmode);
375}
376
377static void v4l_print_frequency(const void *arg, bool write_only)
378{
379 const struct v4l2_frequency *p = arg;
380
381 pr_cont("tuner=%u, type=%u, frequency=%u\n",
382 p->tuner, p->type, p->frequency);
383}
384
385static void v4l_print_standard(const void *arg, bool write_only)
386{
387 const struct v4l2_standard *p = arg;
388
8720427c
MCC		 389 pr_cont("index=%u, id=0x%Lx, name=%.*s, fps=%u/%u, framelines=%u\n",
390 p->index,
27d5a87c 391 (unsigned long long)p->id, (int)sizeof(p->name), p->name,
4b1e2e4d
HV		 392 p->frameperiod.numerator,
393 p->frameperiod.denominator,
394 p->framelines);
395}
396
397static void v4l_print_std(const void *arg, bool write_only)
398{
399 pr_cont("std=0x%08Lx\n", *(const long long unsigned *)arg);
400}
401
402static void v4l_print_hw_freq_seek(const void *arg, bool write_only)
403{
404 const struct v4l2_hw_freq_seek *p = arg;
405
8720427c 406 pr_cont("tuner=%u, type=%u, seek_upward=%u, wrap_around=%u, spacing=%u, rangelow=%u, rangehigh=%u\n",
5e788317
HV		 407 p->tuner, p->type, p->seek_upward, p->wrap_around, p->spacing,
408 p->rangelow, p->rangehigh);
4b1e2e4d
HV		 409}
410
eb3728ed 411static void v4l_print_requestbuffers(const void *arg, bool write_only)
59076122 412{
eb3728ed
HV		 413 const struct v4l2_requestbuffers *p = arg;
414
415 pr_cont("count=%d, type=%s, memory=%s\n",
416 p->count,
417 prt_names(p->type, v4l2_type_names),
418 prt_names(p->memory, v4l2_memory_names));
59076122
HV		 419}
420
eb3728ed 421static void v4l_print_buffer(const void *arg, bool write_only)
35ea11ff 422{
eb3728ed
HV		 423 const struct v4l2_buffer *p = arg;
424 const struct v4l2_timecode *tc = &p->timecode;
425 const struct v4l2_plane *plane;
d14e6d76 426 int i;
35ea11ff 427
8720427c 428 pr_cont("%02ld:%02d:%02d.%08ld index=%d, type=%s, flags=0x%08x, field=%s, sequence=%d, memory=%s",
35ea11ff
HV		 429 p->timestamp.tv_sec / 3600,
430 (int)(p->timestamp.tv_sec / 60) % 60,
431 (int)(p->timestamp.tv_sec % 60),
b045979d 432 (long)p->timestamp.tv_usec,
35ea11ff
HV		 433 p->index,
434 prt_names(p->type, v4l2_type_names),
eb3728ed
HV		 435 p->flags, prt_names(p->field, v4l2_field_names),
436 p->sequence, prt_names(p->memory, v4l2_memory_names));
d14e6d76
PO		 437
438 if (V4L2_TYPE_IS_MULTIPLANAR(p->type) && p->m.planes) {
eb3728ed 439 pr_cont("\n");
d14e6d76
PO		 440 for (i = 0; i < p->length; ++i) {
441 plane = &p->m.planes[i];
eb3728ed 442 printk(KERN_DEBUG
8720427c 443 "plane %d: bytesused=%d, data_offset=0x%08x, offset/userptr=0x%lx, length=%d\n",
d14e6d76
PO		 444 i, plane->bytesused, plane->data_offset,
445 plane->m.userptr, plane->length);
446 }
447 } else {
560dde24 448 pr_cont(", bytesused=%d, offset/userptr=0x%lx, length=%d\n",
d14e6d76
PO		 449 p->bytesused, p->m.userptr, p->length);
450 }
451
8720427c 452 printk(KERN_DEBUG "timecode=%02d:%02d:%02d type=%d, flags=0x%08x, frames=%d, userbits=0x%08x\n",
35ea11ff
HV		 453 tc->hours, tc->minutes, tc->seconds,
454 tc->type, tc->flags, tc->frames, *(__u32 *)tc->userbits);
455}
456
b799d09a
TS		 457static void v4l_print_exportbuffer(const void *arg, bool write_only)
458{
459 const struct v4l2_exportbuffer *p = arg;
460
461 pr_cont("fd=%d, type=%s, index=%u, plane=%u, flags=0x%08x\n",
462 p->fd, prt_names(p->type, v4l2_type_names),
463 p->index, p->plane, p->flags);
464}
465
eb3728ed
HV		 466static void v4l_print_create_buffers(const void *arg, bool write_only)
467{
468 const struct v4l2_create_buffers *p = arg;
469
470 pr_cont("index=%d, count=%d, memory=%s, ",
471 p->index, p->count,
472 prt_names(p->memory, v4l2_memory_names));
473 v4l_print_format(&p->format, write_only);
474}
475
476static void v4l_print_streamparm(const void *arg, bool write_only)
477{
478 const struct v4l2_streamparm *p = arg;
479
480 pr_cont("type=%s", prt_names(p->type, v4l2_type_names));
481
482 if (p->type == V4L2_BUF_TYPE_VIDEO_CAPTURE ||
483 p->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) {
484 const struct v4l2_captureparm *c = &p->parm.capture;
485
8720427c 486 pr_cont(", capability=0x%x, capturemode=0x%x, timeperframe=%d/%d, extendedmode=%d, readbuffers=%d\n",
eb3728ed
HV		 487 c->capability, c->capturemode,
488 c->timeperframe.numerator, c->timeperframe.denominator,
489 c->extendedmode, c->readbuffers);
490 } else if (p->type == V4L2_BUF_TYPE_VIDEO_OUTPUT ||
491 p->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) {
492 const struct v4l2_outputparm *c = &p->parm.output;
493
8720427c 494 pr_cont(", capability=0x%x, outputmode=0x%x, timeperframe=%d/%d, extendedmode=%d, writebuffers=%d\n",
eb3728ed
HV		 495 c->capability, c->outputmode,
496 c->timeperframe.numerator, c->timeperframe.denominator,
497 c->extendedmode, c->writebuffers);
560dde24
HV		 498 } else {
499 pr_cont("\n");
eb3728ed
HV		 500 }
501}
502
efbceecd
HV		 503static void v4l_print_queryctrl(const void *arg, bool write_only)
504{
505 const struct v4l2_queryctrl *p = arg;
506
8720427c 507 pr_cont("id=0x%x, type=%d, name=%.*s, min/max=%d/%d, step=%d, default=%d, flags=0x%08x\n",
27d5a87c 508 p->id, p->type, (int)sizeof(p->name), p->name,
efbceecd
HV		 509 p->minimum, p->maximum,
510 p->step, p->default_value, p->flags);
511}
512
e6bee368
HV		 513static void v4l_print_query_ext_ctrl(const void *arg, bool write_only)
514{
515 const struct v4l2_query_ext_ctrl *p = arg;
516
8720427c 517 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		 518 p->id, p->type, (int)sizeof(p->name), p->name,
519 p->minimum, p->maximum,
520 p->step, p->default_value, p->flags,
521 p->elem_size, p->elems, p->nr_of_dims,
0176077a 522 p->dims[0], p->dims[1], p->dims[2], p->dims[3]);
e6bee368
HV		 523}
524
efbceecd
HV		 525static void v4l_print_querymenu(const void *arg, bool write_only)
526{
527 const struct v4l2_querymenu *p = arg;
528
529 pr_cont("id=0x%x, index=%d\n", p->id, p->index);
530}
531
532static void v4l_print_control(const void *arg, bool write_only)
533{
534 const struct v4l2_control *p = arg;
535
536 pr_cont("id=0x%x, value=%d\n", p->id, p->value);
537}
538
539static void v4l_print_ext_controls(const void *arg, bool write_only)
540{
541 const struct v4l2_ext_controls *p = arg;
542 int i;
543
0f8017be
RRD		 544 pr_cont("which=0x%x, count=%d, error_idx=%d",
545 p->which, p->count, p->error_idx);
efbceecd 546 for (i = 0; i < p->count; i++) {
017ab36a 547 if (!p->controls[i].size)
efbceecd
HV		 548 pr_cont(", id/val=0x%x/0x%x",
549 p->controls[i].id, p->controls[i].value);
550 else
551 pr_cont(", id/size=0x%x/%u",
552 p->controls[i].id, p->controls[i].size);
553 }
554 pr_cont("\n");
555}
556
d84f2d94 557static void v4l_print_cropcap(const void *arg, bool write_only)
eb3728ed 558{
d84f2d94
HV		 559 const struct v4l2_cropcap *p = arg;
560
8720427c 561 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		 562 prt_names(p->type, v4l2_type_names),
563 p->bounds.width, p->bounds.height,
564 p->bounds.left, p->bounds.top,
565 p->defrect.width, p->defrect.height,
566 p->defrect.left, p->defrect.top,
567 p->pixelaspect.numerator, p->pixelaspect.denominator);
eb3728ed
HV		 568}
569
d84f2d94 570static void v4l_print_crop(const void *arg, bool write_only)
35ea11ff 571{
d84f2d94
HV		 572 const struct v4l2_crop *p = arg;
573
574 pr_cont("type=%s, wxh=%dx%d, x,y=%d,%d\n",
575 prt_names(p->type, v4l2_type_names),
576 p->c.width, p->c.height,
577 p->c.left, p->c.top);
578}
579
580static void v4l_print_selection(const void *arg, bool write_only)
581{
582 const struct v4l2_selection *p = arg;
583
584 pr_cont("type=%s, target=%d, flags=0x%x, wxh=%dx%d, x,y=%d,%d\n",
585 prt_names(p->type, v4l2_type_names),
586 p->target, p->flags,
587 p->r.width, p->r.height, p->r.left, p->r.top);
588}
589
d806f2df
HV		 590static void v4l_print_jpegcompression(const void *arg, bool write_only)
591{
592 const struct v4l2_jpegcompression *p = arg;
593
8720427c 594 pr_cont("quality=%d, APPn=%d, APP_len=%d, COM_len=%d, jpeg_markers=0x%x\n",
d806f2df
HV		 595 p->quality, p->APPn, p->APP_len,
596 p->COM_len, p->jpeg_markers);
597}
598
599static void v4l_print_enc_idx(const void *arg, bool write_only)
600{
601 const struct v4l2_enc_idx *p = arg;
602
603 pr_cont("entries=%d, entries_cap=%d\n",
604 p->entries, p->entries_cap);
605}
606
607static void v4l_print_encoder_cmd(const void *arg, bool write_only)
608{
609 const struct v4l2_encoder_cmd *p = arg;
610
611 pr_cont("cmd=%d, flags=0x%x\n",
612 p->cmd, p->flags);
613}
614
615static void v4l_print_decoder_cmd(const void *arg, bool write_only)
616{
617 const struct v4l2_decoder_cmd *p = arg;
618
619 pr_cont("cmd=%d, flags=0x%x\n", p->cmd, p->flags);
620
621 if (p->cmd == V4L2_DEC_CMD_START)
622 pr_info("speed=%d, format=%u\n",
623 p->start.speed, p->start.format);
624 else if (p->cmd == V4L2_DEC_CMD_STOP)
625 pr_info("pts=%llu\n", p->stop.pts);
626}
627
96b03d2a 628static void v4l_print_dbg_chip_info(const void *arg, bool write_only)
79b0c640 629{
96b03d2a 630 const struct v4l2_dbg_chip_info *p = arg;
79b0c640
HV		 631
632 pr_cont("type=%u, ", p->match.type);
3eef2510 633 if (p->match.type == V4L2_CHIP_MATCH_I2C_DRIVER)
79b0c640
HV		 634 pr_cont("name=%.*s, ",
635 (int)sizeof(p->match.name), p->match.name);
636 else
637 pr_cont("addr=%u, ", p->match.addr);
638 pr_cont("name=%.*s\n", (int)sizeof(p->name), p->name);
639}
640
f16f77b0
HV		 641static void v4l_print_dbg_register(const void *arg, bool write_only)
642{
643 const struct v4l2_dbg_register *p = arg;
644
645 pr_cont("type=%u, ", p->match.type);
3eef2510 646 if (p->match.type == V4L2_CHIP_MATCH_I2C_DRIVER)
27d5a87c
HV		 647 pr_cont("name=%.*s, ",
648 (int)sizeof(p->match.name), p->match.name);
f16f77b0
HV		 649 else
650 pr_cont("addr=%u, ", p->match.addr);
651 pr_cont("reg=0x%llx, val=0x%llx\n",
652 p->reg, p->val);
653}
654
efc626b0 655static void v4l_print_dv_timings(const void *arg, bool write_only)
5d7758ee 656{
efc626b0
HV		 657 const struct v4l2_dv_timings *p = arg;
658
5d7758ee
HV		 659 switch (p->type) {
660 case V4L2_DV_BT_656_1120:
8720427c 661 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		 662 p->bt.interlaced, p->bt.pixelclock,
663 p->bt.width, p->bt.height,
664 p->bt.polarities, p->bt.hfrontporch,
665 p->bt.hsync, p->bt.hbackporch,
666 p->bt.vfrontporch, p->bt.vsync,
667 p->bt.vbackporch, p->bt.il_vfrontporch,
668 p->bt.il_vsync, p->bt.il_vbackporch,
669 p->bt.standards, p->bt.flags);
670 break;
671 default:
efc626b0 672 pr_cont("type=%d\n", p->type);
5d7758ee
HV		 673 break;
674 }
675}
676
efc626b0
HV		 677static void v4l_print_enum_dv_timings(const void *arg, bool write_only)
678{
679 const struct v4l2_enum_dv_timings *p = arg;
680
681 pr_cont("index=%u, ", p->index);
682 v4l_print_dv_timings(&p->timings, write_only);
683}
684
685static void v4l_print_dv_timings_cap(const void *arg, bool write_only)
686{
687 const struct v4l2_dv_timings_cap *p = arg;
688
689 switch (p->type) {
690 case V4L2_DV_BT_656_1120:
8720427c 691 pr_cont("type=bt-656/1120, width=%u-%u, height=%u-%u, pixelclock=%llu-%llu, standards=0x%x, capabilities=0x%x\n",
efc626b0
HV		 692 p->bt.min_width, p->bt.max_width,
693 p->bt.min_height, p->bt.max_height,
694 p->bt.min_pixelclock, p->bt.max_pixelclock,
695 p->bt.standards, p->bt.capabilities);
696 break;
697 default:
698 pr_cont("type=%u\n", p->type);
699 break;
700 }
701}
702
458aa4a6
HV		 703static void v4l_print_frmsizeenum(const void *arg, bool write_only)
704{
705 const struct v4l2_frmsizeenum *p = arg;
706
707 pr_cont("index=%u, pixelformat=%c%c%c%c, type=%u",
708 p->index,
709 (p->pixel_format & 0xff),
710 (p->pixel_format >> 8) & 0xff,
711 (p->pixel_format >> 16) & 0xff,
712 (p->pixel_format >> 24) & 0xff,
713 p->type);
714 switch (p->type) {
715 case V4L2_FRMSIZE_TYPE_DISCRETE:
560dde24 716 pr_cont(", wxh=%ux%u\n",
458aa4a6
HV		 717 p->discrete.width, p->discrete.height);
718 break;
719 case V4L2_FRMSIZE_TYPE_STEPWISE:
560dde24 720 pr_cont(", min=%ux%u, max=%ux%u, step=%ux%u\n",
458aa4a6
HV		 721 p->stepwise.min_width, p->stepwise.min_height,
722 p->stepwise.step_width, p->stepwise.step_height,
723 p->stepwise.max_width, p->stepwise.max_height);
724 break;
725 case V4L2_FRMSIZE_TYPE_CONTINUOUS:
726 /* fall through */
727 default:
728 pr_cont("\n");
729 break;
730 }
731}
732
733static void v4l_print_frmivalenum(const void *arg, bool write_only)
734{
735 const struct v4l2_frmivalenum *p = arg;
736
737 pr_cont("index=%u, pixelformat=%c%c%c%c, wxh=%ux%u, type=%u",
738 p->index,
739 (p->pixel_format & 0xff),
740 (p->pixel_format >> 8) & 0xff,
741 (p->pixel_format >> 16) & 0xff,
742 (p->pixel_format >> 24) & 0xff,
743 p->width, p->height, p->type);
744 switch (p->type) {
745 case V4L2_FRMIVAL_TYPE_DISCRETE:
560dde24 746 pr_cont(", fps=%d/%d\n",
458aa4a6
HV		 747 p->discrete.numerator,
748 p->discrete.denominator);
749 break;
750 case V4L2_FRMIVAL_TYPE_STEPWISE:
560dde24 751 pr_cont(", min=%d/%d, max=%d/%d, step=%d/%d\n",
458aa4a6
HV		 752 p->stepwise.min.numerator,
753 p->stepwise.min.denominator,
754 p->stepwise.max.numerator,
755 p->stepwise.max.denominator,
756 p->stepwise.step.numerator,
757 p->stepwise.step.denominator);
758 break;
759 case V4L2_FRMIVAL_TYPE_CONTINUOUS:
760 /* fall through */
761 default:
762 pr_cont("\n");
763 break;
764 }
765}
766
767static void v4l_print_event(const void *arg, bool write_only)
768{
769 const struct v4l2_event *p = arg;
770 const struct v4l2_event_ctrl *c;
771
8720427c 772 pr_cont("type=0x%x, pending=%u, sequence=%u, id=%u, timestamp=%lu.%9.9lu\n",
458aa4a6
HV		 773 p->type, p->pending, p->sequence, p->id,
774 p->timestamp.tv_sec, p->timestamp.tv_nsec);
775 switch (p->type) {
776 case V4L2_EVENT_VSYNC:
777 printk(KERN_DEBUG "field=%s\n",
778 prt_names(p->u.vsync.field, v4l2_field_names));
779 break;
780 case V4L2_EVENT_CTRL:
781 c = &p->u.ctrl;
782 printk(KERN_DEBUG "changes=0x%x, type=%u, ",
783 c->changes, c->type);
784 if (c->type == V4L2_CTRL_TYPE_INTEGER64)
785 pr_cont("value64=%lld, ", c->value64);
786 else
787 pr_cont("value=%d, ", c->value);
8720427c 788 pr_cont("flags=0x%x, minimum=%d, maximum=%d, step=%d, default_value=%d\n",
458aa4a6
HV		 789 c->flags, c->minimum, c->maximum,
790 c->step, c->default_value);
791 break;
792 case V4L2_EVENT_FRAME_SYNC:
793 pr_cont("frame_sequence=%u\n",
794 p->u.frame_sync.frame_sequence);
795 break;
796 }
797}
798
799static void v4l_print_event_subscription(const void *arg, bool write_only)
800{
801 const struct v4l2_event_subscription *p = arg;
802
803 pr_cont("type=0x%x, id=0x%x, flags=0x%x\n",
804 p->type, p->id, p->flags);
805}
806
807static void v4l_print_sliced_vbi_cap(const void *arg, bool write_only)
808{
809 const struct v4l2_sliced_vbi_cap *p = arg;
810 int i;
811
812 pr_cont("type=%s, service_set=0x%08x\n",
813 prt_names(p->type, v4l2_type_names), p->service_set);
814 for (i = 0; i < 24; i++)
815 printk(KERN_DEBUG "line[%02u]=0x%04x, 0x%04x\n", i,
816 p->service_lines[0][i],
817 p->service_lines[1][i]);
818}
819
82b655bf
HV		 820static void v4l_print_freq_band(const void *arg, bool write_only)
821{
822 const struct v4l2_frequency_band *p = arg;
823
8720427c 824 pr_cont("tuner=%u, type=%u, index=%u, capability=0x%x, rangelow=%u, rangehigh=%u, modulation=0x%x\n",
82b655bf
HV		 825 p->tuner, p->type, p->index,
826 p->capability, p->rangelow,
827 p->rangehigh, p->modulation);
828}
829
dd519bb3
HV		 830static void v4l_print_edid(const void *arg, bool write_only)
831{
832 const struct v4l2_edid *p = arg;
833
834 pr_cont("pad=%u, start_block=%u, blocks=%u\n",
835 p->pad, p->start_block, p->blocks);
836}
837
efc626b0
HV		 838static void v4l_print_u32(const void *arg, bool write_only)
839{
840 pr_cont("value=%u\n", *(const u32 *)arg);
841}
842
843static void v4l_print_newline(const void *arg, bool write_only)
844{
845 pr_cont("\n");
846}
847
f18d8e07
HV		 848static void v4l_print_default(const void *arg, bool write_only)
849{
850 pr_cont("driver-specific ioctl\n");
851}
852
efbceecd 853static int check_ext_ctrls(struct v4l2_ext_controls *c, int allow_priv)
35ea11ff
HV		 854{
855 __u32 i;
856
857 /* zero the reserved fields */
858 c->reserved[0] = c->reserved[1] = 0;
6b5a9492 859 for (i = 0; i < c->count; i++)
35ea11ff 860 c->controls[i].reserved2[0] = 0;
6b5a9492 861
35ea11ff
HV		 862 /* V4L2_CID_PRIVATE_BASE cannot be used as control class
863 when using extended controls.
864 Only when passed in through VIDIOC_G_CTRL and VIDIOC_S_CTRL
865 is it allowed for backwards compatibility.
866 */
0f8017be 867 if (!allow_priv && c->which == V4L2_CID_PRIVATE_BASE)
35ea11ff 868 return 0;
0f8017be 869 if (!c->which)
9b239b22 870 return 1;
35ea11ff
HV		 871 /* Check that all controls are from the same control class. */
872 for (i = 0; i < c->count; i++) {
0f8017be 873 if (V4L2_CTRL_ID2WHICH(c->controls[i].id) != c->which) {
35ea11ff
HV		 874 c->error_idx = i;
875 return 0;
876 }
877 }
878 return 1;
879}
880
4b20259f 881static int check_fmt(struct file *file, enum v4l2_buf_type type)
35ea11ff 882{
4b20259f
HV		 883 struct video_device *vfd = video_devdata(file);
884 const struct v4l2_ioctl_ops *ops = vfd->ioctl_ops;
885 bool is_vid = vfd->vfl_type == VFL_TYPE_GRABBER;
886 bool is_vbi = vfd->vfl_type == VFL_TYPE_VBI;
582c52cb 887 bool is_sdr = vfd->vfl_type == VFL_TYPE_SDR;
b2fe22d0 888 bool is_tch = vfd->vfl_type == VFL_TYPE_TOUCH;
4b20259f
HV		 889 bool is_rx = vfd->vfl_dir != VFL_DIR_TX;
890 bool is_tx = vfd->vfl_dir != VFL_DIR_RX;
891
a399810c
HV		 892 if (ops == NULL)
893 return -EINVAL;
894
35ea11ff
HV		 895 switch (type) {
896 case V4L2_BUF_TYPE_VIDEO_CAPTURE:
b2fe22d0 897 if ((is_vid || is_tch) && is_rx &&
4b20259f 898 (ops->vidioc_g_fmt_vid_cap || ops->vidioc_g_fmt_vid_cap_mplane))
d14e6d76
PO		 899 return 0;
900 break;
901 case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE:
4b20259f 902 if (is_vid && is_rx && ops->vidioc_g_fmt_vid_cap_mplane)
35ea11ff
HV		 903 return 0;
904 break;
905 case V4L2_BUF_TYPE_VIDEO_OVERLAY:
4b20259f 906 if (is_vid && is_rx && ops->vidioc_g_fmt_vid_overlay)
35ea11ff
HV		 907 return 0;
908 break;
909 case V4L2_BUF_TYPE_VIDEO_OUTPUT:
4b20259f
HV		 910 if (is_vid && is_tx &&
911 (ops->vidioc_g_fmt_vid_out || ops->vidioc_g_fmt_vid_out_mplane))
d14e6d76
PO		 912 return 0;
913 break;
914 case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE:
4b20259f 915 if (is_vid && is_tx && ops->vidioc_g_fmt_vid_out_mplane)
35ea11ff
HV		 916 return 0;
917 break;
918 case V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY:
4b20259f 919 if (is_vid && is_tx && ops->vidioc_g_fmt_vid_out_overlay)
35ea11ff
HV		 920 return 0;
921 break;
922 case V4L2_BUF_TYPE_VBI_CAPTURE:
4b20259f 923 if (is_vbi && is_rx && ops->vidioc_g_fmt_vbi_cap)
35ea11ff
HV		 924 return 0;
925 break;
926 case V4L2_BUF_TYPE_VBI_OUTPUT:
4b20259f 927 if (is_vbi && is_tx && ops->vidioc_g_fmt_vbi_out)
35ea11ff
HV		 928 return 0;
929 break;
930 case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE:
4b20259f 931 if (is_vbi && is_rx && ops->vidioc_g_fmt_sliced_vbi_cap)
35ea11ff
HV		 932 return 0;
933 break;
934 case V4L2_BUF_TYPE_SLICED_VBI_OUTPUT:
4b20259f 935 if (is_vbi && is_tx && ops->vidioc_g_fmt_sliced_vbi_out)
35ea11ff
HV		 936 return 0;
937 break;
582c52cb
AP		 938 case V4L2_BUF_TYPE_SDR_CAPTURE:
939 if (is_sdr && is_rx && ops->vidioc_g_fmt_sdr_cap)
940 return 0;
941 break;
9effc72f
AP		 942 case V4L2_BUF_TYPE_SDR_OUTPUT:
943 if (is_sdr && is_tx && ops->vidioc_g_fmt_sdr_out)
944 return 0;
945 break;
633c98e5 946 default:
35ea11ff
HV		 947 break;
948 }
949 return -EINVAL;
950}
951
d52e2381
LP		 952static void v4l_sanitize_format(struct v4l2_format *fmt)
953{
954 unsigned int offset;
955
956 /*
957 * The v4l2_pix_format structure has been extended with fields that were
958 * not previously required to be set to zero by applications. The priv
959 * field, when set to a magic value, indicates the the extended fields
960 * are valid. Otherwise they will contain undefined values. To simplify
961 * the API towards drivers zero the extended fields and set the priv
962 * field to the magic value when the extended pixel format structure
963 * isn't used by applications.
964 */
965
966 if (fmt->type != V4L2_BUF_TYPE_VIDEO_CAPTURE &&
967 fmt->type != V4L2_BUF_TYPE_VIDEO_OUTPUT)
968 return;
969
970 if (fmt->fmt.pix.priv == V4L2_PIX_FMT_PRIV_MAGIC)
971 return;
972
973 fmt->fmt.pix.priv = V4L2_PIX_FMT_PRIV_MAGIC;
974
975 offset = offsetof(struct v4l2_pix_format, priv)
976 + sizeof(fmt->fmt.pix.priv);
977 memset(((void *)&fmt->fmt.pix) + offset, 0,
978 sizeof(fmt->fmt.pix) - offset);
979}
980
59076122
HV		 981static int v4l_querycap(const struct v4l2_ioctl_ops *ops,
982 struct file *file, void *fh, void *arg)
983{
984 struct v4l2_capability *cap = (struct v4l2_capability *)arg;
7bbe7813 985 struct video_device *vfd = video_devdata(file);
d52e2381 986 int ret;
59076122
HV		 987
988 cap->version = LINUX_VERSION_CODE;
7bbe7813
HV		 989 cap->device_caps = vfd->device_caps;
990 cap->capabilities = vfd->device_caps | V4L2_CAP_DEVICE_CAPS;
d52e2381
LP		 991
992 ret = ops->vidioc_querycap(file, fh, cap);
993
994 cap->capabilities |= V4L2_CAP_EXT_PIX_FORMAT;
454a4e72
HV		 995 /*
996 * Drivers MUST fill in device_caps, so check for this and
997 * warn if it was forgotten.
998 */
6d7570c4
LA		 999 WARN(!(cap->capabilities & V4L2_CAP_DEVICE_CAPS) ||
1000 !cap->device_caps, "Bad caps for driver %s, %x %x",
1001 cap->driver, cap->capabilities, cap->device_caps);
796a2bd2 1002 cap->device_caps |= V4L2_CAP_EXT_PIX_FORMAT;
d52e2381
LP		 1003
1004 return ret;
59076122
HV		 1005}
1006
1007static int v4l_s_input(const struct v4l2_ioctl_ops *ops,
1008 struct file *file, void *fh, void *arg)
1009{
77fa4e07
SK		 1010 struct video_device *vfd = video_devdata(file);
1011 int ret;
1012
1013 ret = v4l_enable_media_source(vfd);
1014 if (ret)
1015 return ret;
59076122
HV		 1016 return ops->vidioc_s_input(file, fh, *(unsigned int *)arg);
1017}
1018
1019static int v4l_s_output(const struct v4l2_ioctl_ops *ops,
1020 struct file *file, void *fh, void *arg)
1021{
1022 return ops->vidioc_s_output(file, fh, *(unsigned int *)arg);
1023}
1024
d0547cba
HV		 1025static int v4l_g_priority(const struct v4l2_ioctl_ops *ops,
1026 struct file *file, void *fh, void *arg)
1027{
1028 struct video_device *vfd;
1029 u32 *p = arg;
1030
d0547cba 1031 vfd = video_devdata(file);
59b702ea 1032 *p = v4l2_prio_max(vfd->prio);
d0547cba
HV		 1033 return 0;
1034}
1035
1036static int v4l_s_priority(const struct v4l2_ioctl_ops *ops,
1037 struct file *file, void *fh, void *arg)
1038{
1039 struct video_device *vfd;
1040 struct v4l2_fh *vfh;
1041 u32 *p = arg;
1042
d0547cba 1043 vfd = video_devdata(file);
2438e78a
HV		 1044 if (!test_bit(V4L2_FL_USES_V4L2_FH, &vfd->flags))
1045 return -ENOTTY;
d0547cba 1046 vfh = file->private_data;
59b702ea 1047 return v4l2_prio_change(vfd->prio, &vfh->prio, *p);
d0547cba
HV		 1048}
1049
59076122
HV		 1050static int v4l_enuminput(const struct v4l2_ioctl_ops *ops,
1051 struct file *file, void *fh, void *arg)
1052{
73f35418 1053 struct video_device *vfd = video_devdata(file);
59076122
HV		 1054 struct v4l2_input *p = arg;
1055
1056 /*
02fa6282 1057 * We set the flags for CAP_DV_TIMINGS &
59076122
HV		 1058 * CAP_STD here based on ioctl handler provided by the
1059 * driver. If the driver doesn't support these
1060 * for a specific input, it must override these flags.
1061 */
73f35418 1062 if (is_valid_ioctl(vfd, VIDIOC_S_STD))
59076122 1063 p->capabilities |= V4L2_IN_CAP_STD;
59076122
HV		 1064
1065 return ops->vidioc_enum_input(file, fh, p);
1066}
1067
1068static int v4l_enumoutput(const struct v4l2_ioctl_ops *ops,
1069 struct file *file, void *fh, void *arg)
1070{
73f35418 1071 struct video_device *vfd = video_devdata(file);
59076122
HV		 1072 struct v4l2_output *p = arg;
1073
1074 /*
02fa6282 1075 * We set the flags for CAP_DV_TIMINGS &
59076122
HV		 1076 * CAP_STD here based on ioctl handler provided by the
1077 * driver. If the driver doesn't support these
1078 * for a specific output, it must override these flags.
1079 */
73f35418 1080 if (is_valid_ioctl(vfd, VIDIOC_S_STD))
59076122 1081 p->capabilities |= V4L2_OUT_CAP_STD;
59076122
HV		 1082
1083 return ops->vidioc_enum_output(file, fh, p);
1084}
1085
ba300204
HV		 1086static void v4l_fill_fmtdesc(struct v4l2_fmtdesc *fmt)
1087{
1088 const unsigned sz = sizeof(fmt->description);
1089 const char *descr = NULL;
1090 u32 flags = 0;
1091
1092 /*
1093 * We depart from the normal coding style here since the descriptions
1094 * should be aligned so it is easy to see which descriptions will be
1095 * longer than 31 characters (the max length for a description).
1096 * And frankly, this is easier to read anyway.
1097 *
1098 * Note that gcc will use O(log N) comparisons to find the right case.
1099 */
1100 switch (fmt->pixelformat) {
1101 /* Max description length mask: descr = "0123456789012345678901234567890" */
1102 case V4L2_PIX_FMT_RGB332: descr = "8-bit RGB 3-3-2"; break;
1103 case V4L2_PIX_FMT_RGB444: descr = "16-bit A/XRGB 4-4-4-4"; break;
1104 case V4L2_PIX_FMT_ARGB444: descr = "16-bit ARGB 4-4-4-4"; break;
1105 case V4L2_PIX_FMT_XRGB444: descr = "16-bit XRGB 4-4-4-4"; break;
1106 case V4L2_PIX_FMT_RGB555: descr = "16-bit A/XRGB 1-5-5-5"; break;
1107 case V4L2_PIX_FMT_ARGB555: descr = "16-bit ARGB 1-5-5-5"; break;
1108 case V4L2_PIX_FMT_XRGB555: descr = "16-bit XRGB 1-5-5-5"; break;
1109 case V4L2_PIX_FMT_RGB565: descr = "16-bit RGB 5-6-5"; break;
1110 case V4L2_PIX_FMT_RGB555X: descr = "16-bit A/XRGB 1-5-5-5 BE"; break;
1111 case V4L2_PIX_FMT_ARGB555X: descr = "16-bit ARGB 1-5-5-5 BE"; break;
1112 case V4L2_PIX_FMT_XRGB555X: descr = "16-bit XRGB 1-5-5-5 BE"; break;
1113 case V4L2_PIX_FMT_RGB565X: descr = "16-bit RGB 5-6-5 BE"; break;
1114 case V4L2_PIX_FMT_BGR666: descr = "18-bit BGRX 6-6-6-14"; break;
1115 case V4L2_PIX_FMT_BGR24: descr = "24-bit BGR 8-8-8"; break;
1116 case V4L2_PIX_FMT_RGB24: descr = "24-bit RGB 8-8-8"; break;
1117 case V4L2_PIX_FMT_BGR32: descr = "32-bit BGRA/X 8-8-8-8"; break;
1118 case V4L2_PIX_FMT_ABGR32: descr = "32-bit BGRA 8-8-8-8"; break;
1119 case V4L2_PIX_FMT_XBGR32: descr = "32-bit BGRX 8-8-8-8"; break;
1120 case V4L2_PIX_FMT_RGB32: descr = "32-bit A/XRGB 8-8-8-8"; break;
1121 case V4L2_PIX_FMT_ARGB32: descr = "32-bit ARGB 8-8-8-8"; break;
1122 case V4L2_PIX_FMT_XRGB32: descr = "32-bit XRGB 8-8-8-8"; break;
1123 case V4L2_PIX_FMT_GREY: descr = "8-bit Greyscale"; break;
1124 case V4L2_PIX_FMT_Y4: descr = "4-bit Greyscale"; break;
1125 case V4L2_PIX_FMT_Y6: descr = "6-bit Greyscale"; break;
1126 case V4L2_PIX_FMT_Y10: descr = "10-bit Greyscale"; break;
1127 case V4L2_PIX_FMT_Y12: descr = "12-bit Greyscale"; break;
1128 case V4L2_PIX_FMT_Y16: descr = "16-bit Greyscale"; break;
2e5e435f 1129 case V4L2_PIX_FMT_Y16_BE: descr = "16-bit Greyscale BE"; break;
ba300204
HV		 1130 case V4L2_PIX_FMT_Y10BPACK: descr = "10-bit Greyscale (Packed)"; break;
1131 case V4L2_PIX_FMT_PAL8: descr = "8-bit Palette"; break;
1132 case V4L2_PIX_FMT_UV8: descr = "8-bit Chrominance UV 4-4"; break;
1133 case V4L2_PIX_FMT_YVU410: descr = "Planar YVU 4:1:0"; break;
1134 case V4L2_PIX_FMT_YVU420: descr = "Planar YVU 4:2:0"; break;
1135 case V4L2_PIX_FMT_YUYV: descr = "YUYV 4:2:2"; break;
1136 case V4L2_PIX_FMT_YYUV: descr = "YYUV 4:2:2"; break;
1137 case V4L2_PIX_FMT_YVYU: descr = "YVYU 4:2:2"; break;
1138 case V4L2_PIX_FMT_UYVY: descr = "UYVY 4:2:2"; break;
1139 case V4L2_PIX_FMT_VYUY: descr = "VYUY 4:2:2"; break;
fcbafafb 1140 case V4L2_PIX_FMT_YUV422P: descr = "Planar YUV 4:2:2"; break;
ba300204
HV		 1141 case V4L2_PIX_FMT_YUV411P: descr = "Planar YUV 4:1:1"; break;
1142 case V4L2_PIX_FMT_Y41P: descr = "YUV 4:1:1 (Packed)"; break;
1143 case V4L2_PIX_FMT_YUV444: descr = "16-bit A/XYUV 4-4-4-4"; break;
1144 case V4L2_PIX_FMT_YUV555: descr = "16-bit A/XYUV 1-5-5-5"; break;
1145 case V4L2_PIX_FMT_YUV565: descr = "16-bit YUV 5-6-5"; break;
1146 case V4L2_PIX_FMT_YUV32: descr = "32-bit A/XYUV 8-8-8-8"; break;
1147 case V4L2_PIX_FMT_YUV410: descr = "Planar YUV 4:1:0"; break;
1148 case V4L2_PIX_FMT_YUV420: descr = "Planar YUV 4:2:0"; break;
1149 case V4L2_PIX_FMT_HI240: descr = "8-bit Dithered RGB (BTTV)"; break;
1150 case V4L2_PIX_FMT_HM12: descr = "YUV 4:2:0 (16x16 Macroblocks)"; break;
1151 case V4L2_PIX_FMT_M420: descr = "YUV 4:2:0 (M420)"; break;
1152 case V4L2_PIX_FMT_NV12: descr = "Y/CbCr 4:2:0"; break;
1153 case V4L2_PIX_FMT_NV21: descr = "Y/CrCb 4:2:0"; break;
1154 case V4L2_PIX_FMT_NV16: descr = "Y/CbCr 4:2:2"; break;
1155 case V4L2_PIX_FMT_NV61: descr = "Y/CrCb 4:2:2"; break;
1156 case V4L2_PIX_FMT_NV24: descr = "Y/CbCr 4:4:4"; break;
1157 case V4L2_PIX_FMT_NV42: descr = "Y/CrCb 4:4:4"; break;
1158 case V4L2_PIX_FMT_NV12M: descr = "Y/CbCr 4:2:0 (N-C)"; break;
1159 case V4L2_PIX_FMT_NV21M: descr = "Y/CrCb 4:2:0 (N-C)"; break;
1160 case V4L2_PIX_FMT_NV16M: descr = "Y/CbCr 4:2:2 (N-C)"; break;
1161 case V4L2_PIX_FMT_NV61M: descr = "Y/CrCb 4:2:2 (N-C)"; break;
1162 case V4L2_PIX_FMT_NV12MT: descr = "Y/CbCr 4:2:0 (64x32 MB, N-C)"; break;
1163 case V4L2_PIX_FMT_NV12MT_16X16: descr = "Y/CbCr 4:2:0 (16x16 MB, N-C)"; break;
1164 case V4L2_PIX_FMT_YUV420M: descr = "Planar YUV 4:2:0 (N-C)"; break;
1165 case V4L2_PIX_FMT_YVU420M: descr = "Planar YVU 4:2:0 (N-C)"; break;
d65fae92
LP		 1166 case V4L2_PIX_FMT_YUV422M: descr = "Planar YUV 4:2:2 (N-C)"; break;
1167 case V4L2_PIX_FMT_YVU422M: descr = "Planar YVU 4:2:2 (N-C)"; break;
1168 case V4L2_PIX_FMT_YUV444M: descr = "Planar YUV 4:4:4 (N-C)"; break;
1169 case V4L2_PIX_FMT_YVU444M: descr = "Planar YVU 4:4:4 (N-C)"; break;
ba300204
HV		 1170 case V4L2_PIX_FMT_SBGGR8: descr = "8-bit Bayer BGBG/GRGR"; break;
1171 case V4L2_PIX_FMT_SGBRG8: descr = "8-bit Bayer GBGB/RGRG"; break;
1172 case V4L2_PIX_FMT_SGRBG8: descr = "8-bit Bayer GRGR/BGBG"; break;
1173 case V4L2_PIX_FMT_SRGGB8: descr = "8-bit Bayer RGRG/GBGB"; break;
1174 case V4L2_PIX_FMT_SBGGR10: descr = "10-bit Bayer BGBG/GRGR"; break;
1175 case V4L2_PIX_FMT_SGBRG10: descr = "10-bit Bayer GBGB/RGRG"; break;
1176 case V4L2_PIX_FMT_SGRBG10: descr = "10-bit Bayer GRGR/BGBG"; break;
1177 case V4L2_PIX_FMT_SRGGB10: descr = "10-bit Bayer RGRG/GBGB"; break;
1178 case V4L2_PIX_FMT_SBGGR12: descr = "12-bit Bayer BGBG/GRGR"; break;
1179 case V4L2_PIX_FMT_SGBRG12: descr = "12-bit Bayer GBGB/RGRG"; break;
1180 case V4L2_PIX_FMT_SGRBG12: descr = "12-bit Bayer GRGR/BGBG"; break;
1181 case V4L2_PIX_FMT_SRGGB12: descr = "12-bit Bayer RGRG/GBGB"; break;
1182 case V4L2_PIX_FMT_SBGGR10P: descr = "10-bit Bayer BGBG/GRGR Packed"; break;
1183 case V4L2_PIX_FMT_SGBRG10P: descr = "10-bit Bayer GBGB/RGRG Packed"; break;
1184 case V4L2_PIX_FMT_SGRBG10P: descr = "10-bit Bayer GRGR/BGBG Packed"; break;
1185 case V4L2_PIX_FMT_SRGGB10P: descr = "10-bit Bayer RGRG/GBGB Packed"; break;
1186 case V4L2_PIX_FMT_SBGGR10ALAW8: descr = "8-bit Bayer BGBG/GRGR (A-law)"; break;
1187 case V4L2_PIX_FMT_SGBRG10ALAW8: descr = "8-bit Bayer GBGB/RGRG (A-law)"; break;
1188 case V4L2_PIX_FMT_SGRBG10ALAW8: descr = "8-bit Bayer GRGR/BGBG (A-law)"; break;
1189 case V4L2_PIX_FMT_SRGGB10ALAW8: descr = "8-bit Bayer RGRG/GBGB (A-law)"; break;
1190 case V4L2_PIX_FMT_SBGGR10DPCM8: descr = "8-bit Bayer BGBG/GRGR (DPCM)"; break;
1191 case V4L2_PIX_FMT_SGBRG10DPCM8: descr = "8-bit Bayer GBGB/RGRG (DPCM)"; break;
1192 case V4L2_PIX_FMT_SGRBG10DPCM8: descr = "8-bit Bayer GRGR/BGBG (DPCM)"; break;
1193 case V4L2_PIX_FMT_SRGGB10DPCM8: descr = "8-bit Bayer RGRG/GBGB (DPCM)"; break;
1194 case V4L2_PIX_FMT_SBGGR16: descr = "16-bit Bayer BGBG/GRGR (Exp.)"; break;
99b74277 1195 case V4L2_PIX_FMT_SN9C20X_I420: descr = "GSPCA SN9C20X I420"; break;
ba300204
HV		 1196 case V4L2_PIX_FMT_SPCA501: descr = "GSPCA SPCA501"; break;
1197 case V4L2_PIX_FMT_SPCA505: descr = "GSPCA SPCA505"; break;
1198 case V4L2_PIX_FMT_SPCA508: descr = "GSPCA SPCA508"; break;
1199 case V4L2_PIX_FMT_STV0680: descr = "GSPCA STV0680"; break;
1200 case V4L2_PIX_FMT_TM6000: descr = "A/V + VBI Mux Packet"; break;
1201 case V4L2_PIX_FMT_CIT_YYVYUY: descr = "GSPCA CIT YYVYUY"; break;
1202 case V4L2_PIX_FMT_KONICA420: descr = "GSPCA KONICA420"; break;
48fc10aa
AP		 1203 case V4L2_SDR_FMT_CU8: descr = "Complex U8"; break;
1204 case V4L2_SDR_FMT_CU16LE: descr = "Complex U16LE"; break;
ba300204
HV		 1205 case V4L2_SDR_FMT_CS8: descr = "Complex S8"; break;
1206 case V4L2_SDR_FMT_CS14LE: descr = "Complex S14LE"; break;
1207 case V4L2_SDR_FMT_RU12LE: descr = "Real U12LE"; break;
b2fe22d0
ND		 1208 case V4L2_TCH_FMT_DELTA_TD16: descr = "16-bit signed deltas"; break;
1209 case V4L2_TCH_FMT_DELTA_TD08: descr = "8-bit signed deltas"; break;
1210 case V4L2_TCH_FMT_TU16: descr = "16-bit unsigned touch data"; break;
1211 case V4L2_TCH_FMT_TU08: descr = "8-bit unsigned touch data"; break;
ba300204
HV		 1212
1213 default:
1214 /* Compressed formats */
1215 flags = V4L2_FMT_FLAG_COMPRESSED;
1216 switch (fmt->pixelformat) {
1217 /* Max description length mask: descr = "0123456789012345678901234567890" */
1218 case V4L2_PIX_FMT_MJPEG: descr = "Motion-JPEG"; break;
1219 case V4L2_PIX_FMT_JPEG: descr = "JFIF JPEG"; break;
1220 case V4L2_PIX_FMT_DV: descr = "1394"; break;
1221 case V4L2_PIX_FMT_MPEG: descr = "MPEG-1/2/4"; break;
1222 case V4L2_PIX_FMT_H264: descr = "H.264"; break;
1223 case V4L2_PIX_FMT_H264_NO_SC: descr = "H.264 (No Start Codes)"; break;
1224 case V4L2_PIX_FMT_H264_MVC: descr = "H.264 MVC"; break;
1225 case V4L2_PIX_FMT_H263: descr = "H.263"; break;
1226 case V4L2_PIX_FMT_MPEG1: descr = "MPEG-1 ES"; break;
1227 case V4L2_PIX_FMT_MPEG2: descr = "MPEG-2 ES"; break;
1228 case V4L2_PIX_FMT_MPEG4: descr = "MPEG-4 part 2 ES"; break;
1229 case V4L2_PIX_FMT_XVID: descr = "Xvid"; break;
1230 case V4L2_PIX_FMT_VC1_ANNEX_G: descr = "VC-1 (SMPTE 412M Annex G)"; break;
1231 case V4L2_PIX_FMT_VC1_ANNEX_L: descr = "VC-1 (SMPTE 412M Annex L)"; break;
1232 case V4L2_PIX_FMT_VP8: descr = "VP8"; break;
fa14a564 1233 case V4L2_PIX_FMT_VP9: descr = "VP9"; break;
ba300204
HV		 1234 case V4L2_PIX_FMT_CPIA1: descr = "GSPCA CPiA YUV"; break;
1235 case V4L2_PIX_FMT_WNVA: descr = "WNVA"; break;
1236 case V4L2_PIX_FMT_SN9C10X: descr = "GSPCA SN9C10X"; break;
1237 case V4L2_PIX_FMT_PWC1: descr = "Raw Philips Webcam Type (Old)"; break;
1238 case V4L2_PIX_FMT_PWC2: descr = "Raw Philips Webcam Type (New)"; break;
1239 case V4L2_PIX_FMT_ET61X251: descr = "GSPCA ET61X251"; break;
1240 case V4L2_PIX_FMT_SPCA561: descr = "GSPCA SPCA561"; break;
1241 case V4L2_PIX_FMT_PAC207: descr = "GSPCA PAC207"; break;
1242 case V4L2_PIX_FMT_MR97310A: descr = "GSPCA MR97310A"; break;
1243 case V4L2_PIX_FMT_JL2005BCD: descr = "GSPCA JL2005BCD"; break;
1244 case V4L2_PIX_FMT_SN9C2028: descr = "GSPCA SN9C2028"; break;
1245 case V4L2_PIX_FMT_SQ905C: descr = "GSPCA SQ905C"; break;
1246 case V4L2_PIX_FMT_PJPG: descr = "GSPCA PJPG"; break;
1247 case V4L2_PIX_FMT_OV511: descr = "GSPCA OV511"; break;
1248 case V4L2_PIX_FMT_OV518: descr = "GSPCA OV518"; break;
1249 case V4L2_PIX_FMT_JPGL: descr = "JPEG Lite"; break;
1250 case V4L2_PIX_FMT_SE401: descr = "GSPCA SE401"; break;
1251 case V4L2_PIX_FMT_S5C_UYVY_JPG: descr = "S5C73MX interleaved UYVY/JPEG"; break;
1252 default:
1253 WARN(1, "Unknown pixelformat 0x%08x\n", fmt->pixelformat);
1254 if (fmt->description[0])
1255 return;
1256 flags = 0;
1257 snprintf(fmt->description, sz, "%c%c%c%c%s",
1258 (char)(fmt->pixelformat & 0x7f),
1259 (char)((fmt->pixelformat >> 8) & 0x7f),
1260 (char)((fmt->pixelformat >> 16) & 0x7f),
1261 (char)((fmt->pixelformat >> 24) & 0x7f),
1262 (fmt->pixelformat & (1 << 31)) ? "-BE" : "");
1263 break;
1264 }
1265 }
1266
1267 if (descr)
1268 WARN_ON(strlcpy(fmt->description, descr, sz) >= sz);
1269 fmt->flags = flags;
1270}
1271
be6c64e4
HV		 1272static int v4l_enum_fmt(const struct v4l2_ioctl_ops *ops,
1273 struct file *file, void *fh, void *arg)
1274{
1275 struct v4l2_fmtdesc *p = arg;
4b20259f 1276 struct video_device *vfd = video_devdata(file);
ce71bbc9
HV		 1277 bool is_vid = vfd->vfl_type == VFL_TYPE_GRABBER;
1278 bool is_sdr = vfd->vfl_type == VFL_TYPE_SDR;
b2fe22d0 1279 bool is_tch = vfd->vfl_type == VFL_TYPE_TOUCH;
4b20259f
HV		 1280 bool is_rx = vfd->vfl_dir != VFL_DIR_TX;
1281 bool is_tx = vfd->vfl_dir != VFL_DIR_RX;
ba300204 1282 int ret = -EINVAL;
be6c64e4
HV		 1283
1284 switch (p->type) {
1285 case V4L2_BUF_TYPE_VIDEO_CAPTURE:
b2fe22d0 1286 if (unlikely(!is_rx || (!is_vid && !is_tch) || !ops->vidioc_enum_fmt_vid_cap))
be6c64e4 1287 break;
ba300204
HV		 1288 ret = ops->vidioc_enum_fmt_vid_cap(file, fh, arg);
1289 break;
be6c64e4 1290 case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE:
ce71bbc9 1291 if (unlikely(!is_rx || !is_vid || !ops->vidioc_enum_fmt_vid_cap_mplane))
be6c64e4 1292 break;
ba300204
HV		 1293 ret = ops->vidioc_enum_fmt_vid_cap_mplane(file, fh, arg);
1294 break;
be6c64e4 1295 case V4L2_BUF_TYPE_VIDEO_OVERLAY:
ce71bbc9 1296 if (unlikely(!is_rx || !is_vid || !ops->vidioc_enum_fmt_vid_overlay))
be6c64e4 1297 break;
ba300204
HV		 1298 ret = ops->vidioc_enum_fmt_vid_overlay(file, fh, arg);
1299 break;
be6c64e4 1300 case V4L2_BUF_TYPE_VIDEO_OUTPUT:
ce71bbc9 1301 if (unlikely(!is_tx || !is_vid || !ops->vidioc_enum_fmt_vid_out))
be6c64e4 1302 break;
ba300204
HV		 1303 ret = ops->vidioc_enum_fmt_vid_out(file, fh, arg);
1304 break;
be6c64e4 1305 case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE:
ce71bbc9 1306 if (unlikely(!is_tx || !is_vid || !ops->vidioc_enum_fmt_vid_out_mplane))
be6c64e4 1307 break;
ba300204
HV		 1308 ret = ops->vidioc_enum_fmt_vid_out_mplane(file, fh, arg);
1309 break;
582c52cb 1310 case V4L2_BUF_TYPE_SDR_CAPTURE:
ce71bbc9 1311 if (unlikely(!is_rx || !is_sdr || !ops->vidioc_enum_fmt_sdr_cap))
582c52cb 1312 break;
ba300204
HV		 1313 ret = ops->vidioc_enum_fmt_sdr_cap(file, fh, arg);
1314 break;
9effc72f
AP		 1315 case V4L2_BUF_TYPE_SDR_OUTPUT:
1316 if (unlikely(!is_tx || !is_sdr || !ops->vidioc_enum_fmt_sdr_out))
1317 break;
1318 ret = ops->vidioc_enum_fmt_sdr_out(file, fh, arg);
1319 break;
be6c64e4 1320 }
ba300204
HV		 1321 if (ret == 0)
1322 v4l_fill_fmtdesc(p);
1323 return ret;
be6c64e4
HV		 1324}
1325
1326static int v4l_g_fmt(const struct v4l2_ioctl_ops *ops,
1327 struct file *file, void *fh, void *arg)
1328{
1329 struct v4l2_format *p = arg;
4b20259f
HV		 1330 struct video_device *vfd = video_devdata(file);
1331 bool is_vid = vfd->vfl_type == VFL_TYPE_GRABBER;
582c52cb 1332 bool is_sdr = vfd->vfl_type == VFL_TYPE_SDR;
b2fe22d0 1333 bool is_tch = vfd->vfl_type == VFL_TYPE_TOUCH;
4b20259f
HV		 1334 bool is_rx = vfd->vfl_dir != VFL_DIR_TX;
1335 bool is_tx = vfd->vfl_dir != VFL_DIR_RX;
d52e2381
LP		 1336 int ret;
1337
e5ce558a
HV		 1338 /*
1339 * fmt can't be cleared for these overlay types due to the 'clips'
1340 * 'clipcount' and 'bitmap' pointers in struct v4l2_window.
1341 * Those are provided by the user. So handle these two overlay types
1342 * first, and then just do a simple memset for the other types.
1343 */
1344 switch (p->type) {
1345 case V4L2_BUF_TYPE_VIDEO_OVERLAY:
1346 case V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY: {
4d1afa51 1347 struct v4l2_clip __user *clips = p->fmt.win.clips;
e5ce558a 1348 u32 clipcount = p->fmt.win.clipcount;
4d1afa51 1349 void __user *bitmap = p->fmt.win.bitmap;
e5ce558a
HV		 1350
1351 memset(&p->fmt, 0, sizeof(p->fmt));
1352 p->fmt.win.clips = clips;
1353 p->fmt.win.clipcount = clipcount;
1354 p->fmt.win.bitmap = bitmap;
1355 break;
1356 }
1357 default:
1358 memset(&p->fmt, 0, sizeof(p->fmt));
1359 break;
1360 }
1361
be6c64e4
HV		 1362 switch (p->type) {
1363 case V4L2_BUF_TYPE_VIDEO_CAPTURE:
b2fe22d0 1364 if (unlikely(!is_rx || (!is_vid && !is_tch) || !ops->vidioc_g_fmt_vid_cap))
be6c64e4 1365 break;
48f2650a 1366 p->fmt.pix.priv = V4L2_PIX_FMT_PRIV_MAGIC;
d52e2381 1367 ret = ops->vidioc_g_fmt_vid_cap(file, fh, arg);
48f2650a 1368 /* just in case the driver zeroed it again */
d52e2381
LP		 1369 p->fmt.pix.priv = V4L2_PIX_FMT_PRIV_MAGIC;
1370 return ret;
be6c64e4 1371 case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE:
4b20259f 1372 if (unlikely(!is_rx || !is_vid || !ops->vidioc_g_fmt_vid_cap_mplane))
be6c64e4
HV		 1373 break;
1374 return ops->vidioc_g_fmt_vid_cap_mplane(file, fh, arg);
1375 case V4L2_BUF_TYPE_VIDEO_OVERLAY:
4b20259f 1376 if (unlikely(!is_rx || !is_vid || !ops->vidioc_g_fmt_vid_overlay))
be6c64e4
HV		 1377 break;
1378 return ops->vidioc_g_fmt_vid_overlay(file, fh, arg);
4b20259f
HV		 1379 case V4L2_BUF_TYPE_VBI_CAPTURE:
1380 if (unlikely(!is_rx || is_vid || !ops->vidioc_g_fmt_vbi_cap))
1381 break;
1382 return ops->vidioc_g_fmt_vbi_cap(file, fh, arg);
1383 case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE:
1384 if (unlikely(!is_rx || is_vid || !ops->vidioc_g_fmt_sliced_vbi_cap))
1385 break;
1386 return ops->vidioc_g_fmt_sliced_vbi_cap(file, fh, arg);
be6c64e4 1387 case V4L2_BUF_TYPE_VIDEO_OUTPUT:
4b20259f 1388 if (unlikely(!is_tx || !is_vid || !ops->vidioc_g_fmt_vid_out))
be6c64e4 1389 break;
48f2650a 1390 p->fmt.pix.priv = V4L2_PIX_FMT_PRIV_MAGIC;
d52e2381 1391 ret = ops->vidioc_g_fmt_vid_out(file, fh, arg);
48f2650a 1392 /* just in case the driver zeroed it again */
d52e2381
LP		 1393 p->fmt.pix.priv = V4L2_PIX_FMT_PRIV_MAGIC;
1394 return ret;
be6c64e4 1395 case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE:
4b20259f 1396 if (unlikely(!is_tx || !is_vid || !ops->vidioc_g_fmt_vid_out_mplane))
be6c64e4
HV		 1397 break;
1398 return ops->vidioc_g_fmt_vid_out_mplane(file, fh, arg);
1399 case V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY:
4b20259f 1400 if (unlikely(!is_tx || !is_vid || !ops->vidioc_g_fmt_vid_out_overlay))
be6c64e4
HV		 1401 break;
1402 return ops->vidioc_g_fmt_vid_out_overlay(file, fh, arg);
be6c64e4 1403 case V4L2_BUF_TYPE_VBI_OUTPUT:
4b20259f 1404 if (unlikely(!is_tx || is_vid || !ops->vidioc_g_fmt_vbi_out))
be6c64e4
HV		 1405 break;
1406 return ops->vidioc_g_fmt_vbi_out(file, fh, arg);
be6c64e4 1407 case V4L2_BUF_TYPE_SLICED_VBI_OUTPUT:
4b20259f 1408 if (unlikely(!is_tx || is_vid || !ops->vidioc_g_fmt_sliced_vbi_out))
be6c64e4
HV		 1409 break;
1410 return ops->vidioc_g_fmt_sliced_vbi_out(file, fh, arg);
582c52cb
AP		 1411 case V4L2_BUF_TYPE_SDR_CAPTURE:
1412 if (unlikely(!is_rx || !is_sdr || !ops->vidioc_g_fmt_sdr_cap))
1413 break;
1414 return ops->vidioc_g_fmt_sdr_cap(file, fh, arg);
9effc72f
AP		 1415 case V4L2_BUF_TYPE_SDR_OUTPUT:
1416 if (unlikely(!is_tx || !is_sdr || !ops->vidioc_g_fmt_sdr_out))
1417 break;
1418 return ops->vidioc_g_fmt_sdr_out(file, fh, arg);
be6c64e4
HV		 1419 }
1420 return -EINVAL;
1421}
1422
b2fe22d0
ND		 1423static void v4l_pix_format_touch(struct v4l2_pix_format *p)
1424{
1425 /*
1426 * The v4l2_pix_format structure contains fields that make no sense for
1427 * touch. Set them to default values in this case.
1428 */
1429
1430 p->field = V4L2_FIELD_NONE;
1431 p->colorspace = V4L2_COLORSPACE_RAW;
1432 p->flags = 0;
1433 p->ycbcr_enc = 0;
1434 p->quantization = 0;
1435 p->xfer_func = 0;
1436}
1437
be6c64e4
HV		 1438static int v4l_s_fmt(const struct v4l2_ioctl_ops *ops,
1439 struct file *file, void *fh, void *arg)
1440{
1441 struct v4l2_format *p = arg;
4b20259f
HV		 1442 struct video_device *vfd = video_devdata(file);
1443 bool is_vid = vfd->vfl_type == VFL_TYPE_GRABBER;
582c52cb 1444 bool is_sdr = vfd->vfl_type == VFL_TYPE_SDR;
b2fe22d0 1445 bool is_tch = vfd->vfl_type == VFL_TYPE_TOUCH;
4b20259f
HV		 1446 bool is_rx = vfd->vfl_dir != VFL_DIR_TX;
1447 bool is_tx = vfd->vfl_dir != VFL_DIR_RX;
48f2650a 1448 int ret;
be6c64e4 1449
77fa4e07
SK		 1450 ret = v4l_enable_media_source(vfd);
1451 if (ret)
1452 return ret;
d52e2381
LP		 1453 v4l_sanitize_format(p);
1454
be6c64e4
HV		 1455 switch (p->type) {
1456 case V4L2_BUF_TYPE_VIDEO_CAPTURE:
b2fe22d0 1457 if (unlikely(!is_rx || (!is_vid && !is_tch) || !ops->vidioc_s_fmt_vid_cap))
be6c64e4
HV		 1458 break;
1459 CLEAR_AFTER_FIELD(p, fmt.pix);
48f2650a
HV		 1460 ret = ops->vidioc_s_fmt_vid_cap(file, fh, arg);
1461 /* just in case the driver zeroed it again */
1462 p->fmt.pix.priv = V4L2_PIX_FMT_PRIV_MAGIC;
b2fe22d0
ND		 1463 if (is_tch)
1464 v4l_pix_format_touch(&p->fmt.pix);
48f2650a 1465 return ret;
be6c64e4 1466 case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE:
4b20259f 1467 if (unlikely(!is_rx || !is_vid || !ops->vidioc_s_fmt_vid_cap_mplane))
be6c64e4 1468 break;
c49148e8 1469 CLEAR_AFTER_FIELD(p, fmt.pix_mp.xfer_func);
be6c64e4
HV		 1470 return ops->vidioc_s_fmt_vid_cap_mplane(file, fh, arg);
1471 case V4L2_BUF_TYPE_VIDEO_OVERLAY:
4b20259f 1472 if (unlikely(!is_rx || !is_vid || !ops->vidioc_s_fmt_vid_overlay))
be6c64e4
HV		 1473 break;
1474 CLEAR_AFTER_FIELD(p, fmt.win);
1475 return ops->vidioc_s_fmt_vid_overlay(file, fh, arg);
4b20259f
HV		 1476 case V4L2_BUF_TYPE_VBI_CAPTURE:
1477 if (unlikely(!is_rx || is_vid || !ops->vidioc_s_fmt_vbi_cap))
1478 break;
1479 CLEAR_AFTER_FIELD(p, fmt.vbi);
1480 return ops->vidioc_s_fmt_vbi_cap(file, fh, arg);
1481 case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE:
1482 if (unlikely(!is_rx || is_vid || !ops->vidioc_s_fmt_sliced_vbi_cap))
1483 break;
1484 CLEAR_AFTER_FIELD(p, fmt.sliced);
1485 return ops->vidioc_s_fmt_sliced_vbi_cap(file, fh, arg);
be6c64e4 1486 case V4L2_BUF_TYPE_VIDEO_OUTPUT:
4b20259f 1487 if (unlikely(!is_tx || !is_vid || !ops->vidioc_s_fmt_vid_out))
be6c64e4
HV		 1488 break;
1489 CLEAR_AFTER_FIELD(p, fmt.pix);
48f2650a
HV		 1490 ret = ops->vidioc_s_fmt_vid_out(file, fh, arg);
1491 /* just in case the driver zeroed it again */
1492 p->fmt.pix.priv = V4L2_PIX_FMT_PRIV_MAGIC;
1493 return ret;
be6c64e4 1494 case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE:
4b20259f 1495 if (unlikely(!is_tx || !is_vid || !ops->vidioc_s_fmt_vid_out_mplane))
be6c64e4 1496 break;
c49148e8 1497 CLEAR_AFTER_FIELD(p, fmt.pix_mp.xfer_func);
be6c64e4
HV		 1498 return ops->vidioc_s_fmt_vid_out_mplane(file, fh, arg);
1499 case V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY:
4b20259f 1500 if (unlikely(!is_tx || !is_vid || !ops->vidioc_s_fmt_vid_out_overlay))
be6c64e4
HV		 1501 break;
1502 CLEAR_AFTER_FIELD(p, fmt.win);
1503 return ops->vidioc_s_fmt_vid_out_overlay(file, fh, arg);
be6c64e4 1504 case V4L2_BUF_TYPE_VBI_OUTPUT:
4b20259f 1505 if (unlikely(!is_tx || is_vid || !ops->vidioc_s_fmt_vbi_out))
be6c64e4
HV		 1506 break;
1507 CLEAR_AFTER_FIELD(p, fmt.vbi);
1508 return ops->vidioc_s_fmt_vbi_out(file, fh, arg);
be6c64e4 1509 case V4L2_BUF_TYPE_SLICED_VBI_OUTPUT:
4b20259f 1510 if (unlikely(!is_tx || is_vid || !ops->vidioc_s_fmt_sliced_vbi_out))
be6c64e4
HV		 1511 break;
1512 CLEAR_AFTER_FIELD(p, fmt.sliced);
1513 return ops->vidioc_s_fmt_sliced_vbi_out(file, fh, arg);
582c52cb
AP		 1514 case V4L2_BUF_TYPE_SDR_CAPTURE:
1515 if (unlikely(!is_rx || !is_sdr || !ops->vidioc_s_fmt_sdr_cap))
1516 break;
1517 CLEAR_AFTER_FIELD(p, fmt.sdr);
1518 return ops->vidioc_s_fmt_sdr_cap(file, fh, arg);
9effc72f
AP		 1519 case V4L2_BUF_TYPE_SDR_OUTPUT:
1520 if (unlikely(!is_tx || !is_sdr || !ops->vidioc_s_fmt_sdr_out))
1521 break;
1522 CLEAR_AFTER_FIELD(p, fmt.sdr);
1523 return ops->vidioc_s_fmt_sdr_out(file, fh, arg);
be6c64e4
HV		 1524 }
1525 return -EINVAL;
1526}
1527
1528static int v4l_try_fmt(const struct v4l2_ioctl_ops *ops,
1529 struct file *file, void *fh, void *arg)
1530{
1531 struct v4l2_format *p = arg;
4b20259f
HV		 1532 struct video_device *vfd = video_devdata(file);
1533 bool is_vid = vfd->vfl_type == VFL_TYPE_GRABBER;
582c52cb 1534 bool is_sdr = vfd->vfl_type == VFL_TYPE_SDR;
b2fe22d0 1535 bool is_tch = vfd->vfl_type == VFL_TYPE_TOUCH;
4b20259f
HV		 1536 bool is_rx = vfd->vfl_dir != VFL_DIR_TX;
1537 bool is_tx = vfd->vfl_dir != VFL_DIR_RX;
48f2650a 1538 int ret;
be6c64e4 1539
d52e2381
LP		 1540 v4l_sanitize_format(p);
1541
be6c64e4
HV		 1542 switch (p->type) {
1543 case V4L2_BUF_TYPE_VIDEO_CAPTURE:
b2fe22d0 1544 if (unlikely(!is_rx || (!is_vid && !is_tch) || !ops->vidioc_try_fmt_vid_cap))
be6c64e4
HV		 1545 break;
1546 CLEAR_AFTER_FIELD(p, fmt.pix);
48f2650a
HV		 1547 ret = ops->vidioc_try_fmt_vid_cap(file, fh, arg);
1548 /* just in case the driver zeroed it again */
1549 p->fmt.pix.priv = V4L2_PIX_FMT_PRIV_MAGIC;
1550 return ret;
be6c64e4 1551 case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE:
4b20259f 1552 if (unlikely(!is_rx || !is_vid || !ops->vidioc_try_fmt_vid_cap_mplane))
be6c64e4 1553 break;
c49148e8 1554 CLEAR_AFTER_FIELD(p, fmt.pix_mp.xfer_func);
be6c64e4
HV		 1555 return ops->vidioc_try_fmt_vid_cap_mplane(file, fh, arg);
1556 case V4L2_BUF_TYPE_VIDEO_OVERLAY:
4b20259f 1557 if (unlikely(!is_rx || !is_vid || !ops->vidioc_try_fmt_vid_overlay))
be6c64e4
HV		 1558 break;
1559 CLEAR_AFTER_FIELD(p, fmt.win);
1560 return ops->vidioc_try_fmt_vid_overlay(file, fh, arg);
4b20259f
HV		 1561 case V4L2_BUF_TYPE_VBI_CAPTURE:
1562 if (unlikely(!is_rx || is_vid || !ops->vidioc_try_fmt_vbi_cap))
1563 break;
1564 CLEAR_AFTER_FIELD(p, fmt.vbi);
1565 return ops->vidioc_try_fmt_vbi_cap(file, fh, arg);
1566 case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE:
1567 if (unlikely(!is_rx || is_vid || !ops->vidioc_try_fmt_sliced_vbi_cap))
1568 break;
1569 CLEAR_AFTER_FIELD(p, fmt.sliced);
1570 return ops->vidioc_try_fmt_sliced_vbi_cap(file, fh, arg);
be6c64e4 1571 case V4L2_BUF_TYPE_VIDEO_OUTPUT:
4b20259f 1572 if (unlikely(!is_tx || !is_vid || !ops->vidioc_try_fmt_vid_out))
be6c64e4
HV		 1573 break;
1574 CLEAR_AFTER_FIELD(p, fmt.pix);
48f2650a
HV		 1575 ret = ops->vidioc_try_fmt_vid_out(file, fh, arg);
1576 /* just in case the driver zeroed it again */
1577 p->fmt.pix.priv = V4L2_PIX_FMT_PRIV_MAGIC;
1578 return ret;
be6c64e4 1579 case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE:
4b20259f 1580 if (unlikely(!is_tx || !is_vid || !ops->vidioc_try_fmt_vid_out_mplane))
be6c64e4 1581 break;
c49148e8 1582 CLEAR_AFTER_FIELD(p, fmt.pix_mp.xfer_func);
be6c64e4
HV		 1583 return ops->vidioc_try_fmt_vid_out_mplane(file, fh, arg);
1584 case V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY:
4b20259f 1585 if (unlikely(!is_tx || !is_vid || !ops->vidioc_try_fmt_vid_out_overlay))
be6c64e4
HV		 1586 break;
1587 CLEAR_AFTER_FIELD(p, fmt.win);
1588 return ops->vidioc_try_fmt_vid_out_overlay(file, fh, arg);
be6c64e4 1589 case V4L2_BUF_TYPE_VBI_OUTPUT:
4b20259f 1590 if (unlikely(!is_tx || is_vid || !ops->vidioc_try_fmt_vbi_out))
be6c64e4
HV		 1591 break;
1592 CLEAR_AFTER_FIELD(p, fmt.vbi);
1593 return ops->vidioc_try_fmt_vbi_out(file, fh, arg);
be6c64e4 1594 case V4L2_BUF_TYPE_SLICED_VBI_OUTPUT:
4b20259f 1595 if (unlikely(!is_tx || is_vid || !ops->vidioc_try_fmt_sliced_vbi_out))
be6c64e4
HV		 1596 break;
1597 CLEAR_AFTER_FIELD(p, fmt.sliced);
1598 return ops->vidioc_try_fmt_sliced_vbi_out(file, fh, arg);
582c52cb
AP		 1599 case V4L2_BUF_TYPE_SDR_CAPTURE:
1600 if (unlikely(!is_rx || !is_sdr || !ops->vidioc_try_fmt_sdr_cap))
1601 break;
1602 CLEAR_AFTER_FIELD(p, fmt.sdr);
1603 return ops->vidioc_try_fmt_sdr_cap(file, fh, arg);
9effc72f
AP		 1604 case V4L2_BUF_TYPE_SDR_OUTPUT:
1605 if (unlikely(!is_tx || !is_sdr || !ops->vidioc_try_fmt_sdr_out))
1606 break;
1607 CLEAR_AFTER_FIELD(p, fmt.sdr);
1608 return ops->vidioc_try_fmt_sdr_out(file, fh, arg);
be6c64e4
HV		 1609 }
1610 return -EINVAL;
1611}
1612
e325b244
HV		 1613static int v4l_streamon(const struct v4l2_ioctl_ops *ops,
1614 struct file *file, void *fh, void *arg)
1615{
1616 return ops->vidioc_streamon(file, fh, *(unsigned int *)arg);
1617}
1618
1619static int v4l_streamoff(const struct v4l2_ioctl_ops *ops,
1620 struct file *file, void *fh, void *arg)
1621{
1622 return ops->vidioc_streamoff(file, fh, *(unsigned int *)arg);
1623}
1624
4b1e2e4d
HV		 1625static int v4l_g_tuner(const struct v4l2_ioctl_ops *ops,
1626 struct file *file, void *fh, void *arg)
1627{
1628 struct video_device *vfd = video_devdata(file);
1629 struct v4l2_tuner *p = arg;
82b655bf 1630 int err;
4b1e2e4d
HV		 1631
1632 p->type = (vfd->vfl_type == VFL_TYPE_RADIO) ?
1633 V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV;
82b655bf
HV		 1634 err = ops->vidioc_g_tuner(file, fh, p);
1635 if (!err)
1636 p->capability |= V4L2_TUNER_CAP_FREQ_BANDS;
1637 return err;
4b1e2e4d
HV		 1638}
1639
1640static int v4l_s_tuner(const struct v4l2_ioctl_ops *ops,
1641 struct file *file, void *fh, void *arg)
1642{
1643 struct video_device *vfd = video_devdata(file);
1644 struct v4l2_tuner *p = arg;
77fa4e07 1645 int ret;
4b1e2e4d 1646
77fa4e07
SK		 1647 ret = v4l_enable_media_source(vfd);
1648 if (ret)
1649 return ret;
4b1e2e4d
HV		 1650 p->type = (vfd->vfl_type == VFL_TYPE_RADIO) ?
1651 V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV;
1652 return ops->vidioc_s_tuner(file, fh, p);
1653}
1654
82b655bf
HV		 1655static int v4l_g_modulator(const struct v4l2_ioctl_ops *ops,
1656 struct file *file, void *fh, void *arg)
1657{
4124a3c4 1658 struct video_device *vfd = video_devdata(file);
82b655bf
HV		 1659 struct v4l2_modulator *p = arg;
1660 int err;
1661
4124a3c4
AP		 1662 if (vfd->vfl_type == VFL_TYPE_RADIO)
1663 p->type = V4L2_TUNER_RADIO;
1664
82b655bf
HV		 1665 err = ops->vidioc_g_modulator(file, fh, p);
1666 if (!err)
1667 p->capability |= V4L2_TUNER_CAP_FREQ_BANDS;
1668 return err;
1669}
1670
4124a3c4
AP		 1671static int v4l_s_modulator(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_modulator *p = arg;
1676
1677 if (vfd->vfl_type == VFL_TYPE_RADIO)
1678 p->type = V4L2_TUNER_RADIO;
1679
1680 return ops->vidioc_s_modulator(file, fh, p);
1681}
1682
4b1e2e4d
HV		 1683static int v4l_g_frequency(const struct v4l2_ioctl_ops *ops,
1684 struct file *file, void *fh, void *arg)
1685{
1686 struct video_device *vfd = video_devdata(file);
1687 struct v4l2_frequency *p = arg;
1688
84099a28 1689 if (vfd->vfl_type == VFL_TYPE_SDR)
f3c3ecec 1690 p->type = V4L2_TUNER_SDR;
84099a28
AP		 1691 else
1692 p->type = (vfd->vfl_type == VFL_TYPE_RADIO) ?
1693 V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV;
4b1e2e4d
HV		 1694 return ops->vidioc_g_frequency(file, fh, p);
1695}
1696
1697static int v4l_s_frequency(const struct v4l2_ioctl_ops *ops,
1698 struct file *file, void *fh, void *arg)
1699{
1700 struct video_device *vfd = video_devdata(file);
b530a447 1701 const struct v4l2_frequency *p = arg;
4b1e2e4d 1702 enum v4l2_tuner_type type;
77fa4e07 1703 int ret;
4b1e2e4d 1704
77fa4e07
SK		 1705 ret = v4l_enable_media_source(vfd);
1706 if (ret)
1707 return ret;
84099a28 1708 if (vfd->vfl_type == VFL_TYPE_SDR) {
f3c3ecec 1709 if (p->type != V4L2_TUNER_SDR && p->type != V4L2_TUNER_RF)
84099a28
AP		 1710 return -EINVAL;
1711 } else {
1712 type = (vfd->vfl_type == VFL_TYPE_RADIO) ?
1713 V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV;
1714 if (type != p->type)
1715 return -EINVAL;
1716 }
4b1e2e4d
HV		 1717 return ops->vidioc_s_frequency(file, fh, p);
1718}
1719
1720static int v4l_enumstd(const struct v4l2_ioctl_ops *ops,
1721 struct file *file, void *fh, void *arg)
1722{
1723 struct video_device *vfd = video_devdata(file);
1724 struct v4l2_standard *p = arg;
1725 v4l2_std_id id = vfd->tvnorms, curr_id = 0;
1726 unsigned int index = p->index, i, j = 0;
1727 const char *descr = "";
1728
a5338190
HV		 1729 /* Return -ENODATA if the tvnorms for the current input
1730 or output is 0, meaning that it doesn't support this API. */
1731 if (id == 0)
1732 return -ENODATA;
1733
4b1e2e4d
HV		 1734 /* Return norm array in a canonical way */
1735 for (i = 0; i <= index && id; i++) {
1736 /* last std value in the standards array is 0, so this
1737 while always ends there since (id & 0) == 0. */
1738 while ((id & standards[j].std) != standards[j].std)
1739 j++;
1740 curr_id = standards[j].std;
1741 descr = standards[j].descr;
1742 j++;
1743 if (curr_id == 0)
1744 break;
1745 if (curr_id != V4L2_STD_PAL &&
1746 curr_id != V4L2_STD_SECAM &&
1747 curr_id != V4L2_STD_NTSC)
1748 id &= ~curr_id;
1749 }
1750 if (i <= index)
1751 return -EINVAL;
1752
1753 v4l2_video_std_construct(p, curr_id, descr);
1754 return 0;
1755}
1756
4b1e2e4d
HV		 1757static int v4l_s_std(const struct v4l2_ioctl_ops *ops,
1758 struct file *file, void *fh, void *arg)
1759{
1760 struct video_device *vfd = video_devdata(file);
314527ac 1761 v4l2_std_id id = *(v4l2_std_id *)arg, norm;
77fa4e07 1762 int ret;
4b1e2e4d 1763
77fa4e07
SK		 1764 ret = v4l_enable_media_source(vfd);
1765 if (ret)
1766 return ret;
314527ac 1767 norm = id & vfd->tvnorms;
4b1e2e4d
HV		 1768 if (vfd->tvnorms && !norm) /* Check if std is supported */
1769 return -EINVAL;
1770
1771 /* Calls the specific handler */
ca371575 1772 return ops->vidioc_s_std(file, fh, norm);
4b1e2e4d
HV		 1773}
1774
1775static int v4l_querystd(const struct v4l2_ioctl_ops *ops,
1776 struct file *file, void *fh, void *arg)
1777{
1778 struct video_device *vfd = video_devdata(file);
1779 v4l2_std_id *p = arg;
77fa4e07 1780 int ret;
4b1e2e4d 1781
77fa4e07
SK		 1782 ret = v4l_enable_media_source(vfd);
1783 if (ret)
1784 return ret;
4b1e2e4d 1785 /*
1a2c6866
HV		 1786 * If no signal is detected, then the driver should return
1787 * V4L2_STD_UNKNOWN. Otherwise it should return tvnorms with
1788 * any standards that do not apply removed.
1789 *
4b1e2e4d
HV		 1790 * This means that tuners, audio and video decoders can join
1791 * their efforts to improve the standards detection.
1792 */
1793 *p = vfd->tvnorms;
1794 return ops->vidioc_querystd(file, fh, arg);
1795}
1796
1797static int v4l_s_hw_freq_seek(const struct v4l2_ioctl_ops *ops,
1798 struct file *file, void *fh, void *arg)
1799{
1800 struct video_device *vfd = video_devdata(file);
1801 struct v4l2_hw_freq_seek *p = arg;
1802 enum v4l2_tuner_type type;
77fa4e07 1803 int ret;
4b1e2e4d 1804
77fa4e07
SK		 1805 ret = v4l_enable_media_source(vfd);
1806 if (ret)
1807 return ret;
84099a28
AP		 1808 /* s_hw_freq_seek is not supported for SDR for now */
1809 if (vfd->vfl_type == VFL_TYPE_SDR)
1810 return -EINVAL;
1811
4b1e2e4d
HV		 1812 type = (vfd->vfl_type == VFL_TYPE_RADIO) ?
1813 V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV;
1814 if (p->type != type)
1815 return -EINVAL;
1816 return ops->vidioc_s_hw_freq_seek(file, fh, p);
1817}
1818
737c097b
HV		 1819static int v4l_overlay(const struct v4l2_ioctl_ops *ops,
1820 struct file *file, void *fh, void *arg)
1821{
1822 return ops->vidioc_overlay(file, fh, *(unsigned int *)arg);
1823}
1824
eb3728ed
HV		 1825static int v4l_reqbufs(const struct v4l2_ioctl_ops *ops,
1826 struct file *file, void *fh, void *arg)
1827{
1828 struct v4l2_requestbuffers *p = arg;
4b20259f 1829 int ret = check_fmt(file, p->type);
eb3728ed
HV		 1830
1831 if (ret)
1832 return ret;
1833
633c98e5 1834 CLEAR_AFTER_FIELD(p, memory);
eb3728ed
HV		 1835
1836 return ops->vidioc_reqbufs(file, fh, p);
1837}
1838
1839static int v4l_querybuf(const struct v4l2_ioctl_ops *ops,
1840 struct file *file, void *fh, void *arg)
1841{
1842 struct v4l2_buffer *p = arg;
4b20259f 1843 int ret = check_fmt(file, p->type);
eb3728ed
HV		 1844
1845 return ret ? ret : ops->vidioc_querybuf(file, fh, p);
1846}
1847
1848static int v4l_qbuf(const struct v4l2_ioctl_ops *ops,
1849 struct file *file, void *fh, void *arg)
1850{
1851 struct v4l2_buffer *p = arg;
4b20259f 1852 int ret = check_fmt(file, p->type);
eb3728ed
HV		 1853
1854 return ret ? ret : ops->vidioc_qbuf(file, fh, p);
1855}
1856
1857static int v4l_dqbuf(const struct v4l2_ioctl_ops *ops,
1858 struct file *file, void *fh, void *arg)
1859{
1860 struct v4l2_buffer *p = arg;
4b20259f 1861 int ret = check_fmt(file, p->type);
eb3728ed
HV		 1862
1863 return ret ? ret : ops->vidioc_dqbuf(file, fh, p);
1864}
1865
1866static int v4l_create_bufs(const struct v4l2_ioctl_ops *ops,
1867 struct file *file, void *fh, void *arg)
1868{
1869 struct v4l2_create_buffers *create = arg;
4b20259f 1870 int ret = check_fmt(file, create->format.type);
eb3728ed 1871
d52e2381
LP		 1872 if (ret)
1873 return ret;
1874
5d351251
HV		 1875 CLEAR_AFTER_FIELD(create, format);
1876
d52e2381
LP		 1877 v4l_sanitize_format(&create->format);
1878
1879 ret = ops->vidioc_create_bufs(file, fh, create);
1880
1881 if (create->format.type == V4L2_BUF_TYPE_VIDEO_CAPTURE ||
1882 create->format.type == V4L2_BUF_TYPE_VIDEO_OUTPUT)
1883 create->format.fmt.pix.priv = V4L2_PIX_FMT_PRIV_MAGIC;
1884
1885 return ret;
eb3728ed
HV		 1886}
1887
1888static int v4l_prepare_buf(const struct v4l2_ioctl_ops *ops,
1889 struct file *file, void *fh, void *arg)
1890{
1891 struct v4l2_buffer *b = arg;
4b20259f 1892 int ret = check_fmt(file, b->type);
eb3728ed
HV		 1893
1894 return ret ? ret : ops->vidioc_prepare_buf(file, fh, b);
1895}
1896
1897static int v4l_g_parm(const struct v4l2_ioctl_ops *ops,
1898 struct file *file, void *fh, void *arg)
1899{
eb3728ed
HV		 1900 struct v4l2_streamparm *p = arg;
1901 v4l2_std_id std;
4b20259f 1902 int ret = check_fmt(file, p->type);
eb3728ed
HV		 1903
1904 if (ret)
1905 return ret;
1906 if (ops->vidioc_g_parm)
1907 return ops->vidioc_g_parm(file, fh, p);
eb3728ed
HV		 1908 if (p->type != V4L2_BUF_TYPE_VIDEO_CAPTURE &&
1909 p->type != V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE)
1910 return -EINVAL;
1911 p->parm.capture.readbuffers = 2;
ca371575 1912 ret = ops->vidioc_g_std(file, fh, &std);
eb3728ed 1913 if (ret == 0)
ca371575 1914 v4l2_video_std_frame_period(std, &p->parm.capture.timeperframe);
eb3728ed
HV		 1915 return ret;
1916}
1917
1918static int v4l_s_parm(const struct v4l2_ioctl_ops *ops,
1919 struct file *file, void *fh, void *arg)
1920{
1921 struct v4l2_streamparm *p = arg;
4b20259f 1922 int ret = check_fmt(file, p->type);
eb3728ed
HV		 1923
1924 return ret ? ret : ops->vidioc_s_parm(file, fh, p);
1925}
1926
efbceecd
HV		 1927static int v4l_queryctrl(const struct v4l2_ioctl_ops *ops,
1928 struct file *file, void *fh, void *arg)
1929{
1930 struct video_device *vfd = video_devdata(file);
1931 struct v4l2_queryctrl *p = arg;
7a3ed2d9
HV		 1932 struct v4l2_fh *vfh =
1933 test_bit(V4L2_FL_USES_V4L2_FH, &vfd->flags) ? fh : NULL;
efbceecd
HV		 1934
1935 if (vfh && vfh->ctrl_handler)
1936 return v4l2_queryctrl(vfh->ctrl_handler, p);
1937 if (vfd->ctrl_handler)
1938 return v4l2_queryctrl(vfd->ctrl_handler, p);
1939 if (ops->vidioc_queryctrl)
1940 return ops->vidioc_queryctrl(file, fh, p);
1941 return -ENOTTY;
1942}
1943
e6bee368
HV		 1944static int v4l_query_ext_ctrl(const struct v4l2_ioctl_ops *ops,
1945 struct file *file, void *fh, void *arg)
1946{
1947 struct video_device *vfd = video_devdata(file);
1948 struct v4l2_query_ext_ctrl *p = arg;
1949 struct v4l2_fh *vfh =
1950 test_bit(V4L2_FL_USES_V4L2_FH, &vfd->flags) ? fh : NULL;
1951
1952 if (vfh && vfh->ctrl_handler)
1953 return v4l2_query_ext_ctrl(vfh->ctrl_handler, p);
1954 if (vfd->ctrl_handler)
1955 return v4l2_query_ext_ctrl(vfd->ctrl_handler, p);
1956 if (ops->vidioc_query_ext_ctrl)
1957 return ops->vidioc_query_ext_ctrl(file, fh, p);
1958 return -ENOTTY;
1959}
1960
efbceecd
HV		 1961static int v4l_querymenu(const struct v4l2_ioctl_ops *ops,
1962 struct file *file, void *fh, void *arg)
1963{
1964 struct video_device *vfd = video_devdata(file);
1965 struct v4l2_querymenu *p = arg;
7a3ed2d9
HV		 1966 struct v4l2_fh *vfh =
1967 test_bit(V4L2_FL_USES_V4L2_FH, &vfd->flags) ? fh : NULL;
efbceecd
HV		 1968
1969 if (vfh && vfh->ctrl_handler)
1970 return v4l2_querymenu(vfh->ctrl_handler, p);
1971 if (vfd->ctrl_handler)
1972 return v4l2_querymenu(vfd->ctrl_handler, p);
1973 if (ops->vidioc_querymenu)
1974 return ops->vidioc_querymenu(file, fh, p);
1975 return -ENOTTY;
1976}
1977
1978static int v4l_g_ctrl(const struct v4l2_ioctl_ops *ops,
1979 struct file *file, void *fh, void *arg)
1980{
1981 struct video_device *vfd = video_devdata(file);
1982 struct v4l2_control *p = arg;
7a3ed2d9
HV		 1983 struct v4l2_fh *vfh =
1984 test_bit(V4L2_FL_USES_V4L2_FH, &vfd->flags) ? fh : NULL;
efbceecd
HV		 1985 struct v4l2_ext_controls ctrls;
1986 struct v4l2_ext_control ctrl;
1987
1988 if (vfh && vfh->ctrl_handler)
1989 return v4l2_g_ctrl(vfh->ctrl_handler, p);
1990 if (vfd->ctrl_handler)
1991 return v4l2_g_ctrl(vfd->ctrl_handler, p);
1992 if (ops->vidioc_g_ctrl)
1993 return ops->vidioc_g_ctrl(file, fh, p);
1994 if (ops->vidioc_g_ext_ctrls == NULL)
1995 return -ENOTTY;
1996
0f8017be 1997 ctrls.which = V4L2_CTRL_ID2WHICH(p->id);
efbceecd
HV		 1998 ctrls.count = 1;
1999 ctrls.controls = &ctrl;
2000 ctrl.id = p->id;
2001 ctrl.value = p->value;
2002 if (check_ext_ctrls(&ctrls, 1)) {
2003 int ret = ops->vidioc_g_ext_ctrls(file, fh, &ctrls);
2004
2005 if (ret == 0)
2006 p->value = ctrl.value;
2007 return ret;
2008 }
2009 return -EINVAL;
2010}
2011
2012static int v4l_s_ctrl(const struct v4l2_ioctl_ops *ops,
2013 struct file *file, void *fh, void *arg)
2014{
2015 struct video_device *vfd = video_devdata(file);
2016 struct v4l2_control *p = arg;
7a3ed2d9
HV		 2017 struct v4l2_fh *vfh =
2018 test_bit(V4L2_FL_USES_V4L2_FH, &vfd->flags) ? fh : NULL;
efbceecd
HV		 2019 struct v4l2_ext_controls ctrls;
2020 struct v4l2_ext_control ctrl;
2021
2022 if (vfh && vfh->ctrl_handler)
2023 return v4l2_s_ctrl(vfh, vfh->ctrl_handler, p);
2024 if (vfd->ctrl_handler)
2025 return v4l2_s_ctrl(NULL, vfd->ctrl_handler, p);
2026 if (ops->vidioc_s_ctrl)
2027 return ops->vidioc_s_ctrl(file, fh, p);
2028 if (ops->vidioc_s_ext_ctrls == NULL)
2029 return -ENOTTY;
2030
0f8017be 2031 ctrls.which = V4L2_CTRL_ID2WHICH(p->id);
efbceecd
HV		 2032 ctrls.count = 1;
2033 ctrls.controls = &ctrl;
2034 ctrl.id = p->id;
2035 ctrl.value = p->value;
2036 if (check_ext_ctrls(&ctrls, 1))
2037 return ops->vidioc_s_ext_ctrls(file, fh, &ctrls);
2038 return -EINVAL;
2039}
2040
2041static int v4l_g_ext_ctrls(const struct v4l2_ioctl_ops *ops,
2042 struct file *file, void *fh, void *arg)
2043{
2044 struct video_device *vfd = video_devdata(file);
2045 struct v4l2_ext_controls *p = arg;
7a3ed2d9
HV		 2046 struct v4l2_fh *vfh =
2047 test_bit(V4L2_FL_USES_V4L2_FH, &vfd->flags) ? fh : NULL;
efbceecd
HV		 2048
2049 p->error_idx = p->count;
2050 if (vfh && vfh->ctrl_handler)
2051 return v4l2_g_ext_ctrls(vfh->ctrl_handler, p);
2052 if (vfd->ctrl_handler)
2053 return v4l2_g_ext_ctrls(vfd->ctrl_handler, p);
2054 if (ops->vidioc_g_ext_ctrls == NULL)
2055 return -ENOTTY;
2056 return check_ext_ctrls(p, 0) ? ops->vidioc_g_ext_ctrls(file, fh, p) :
2057 -EINVAL;
2058}
2059
2060static int v4l_s_ext_ctrls(const struct v4l2_ioctl_ops *ops,
2061 struct file *file, void *fh, void *arg)
2062{
2063 struct video_device *vfd = video_devdata(file);
2064 struct v4l2_ext_controls *p = arg;
7a3ed2d9
HV		 2065 struct v4l2_fh *vfh =
2066 test_bit(V4L2_FL_USES_V4L2_FH, &vfd->flags) ? fh : NULL;
efbceecd
HV		 2067
2068 p->error_idx = p->count;
2069 if (vfh && vfh->ctrl_handler)
2070 return v4l2_s_ext_ctrls(vfh, vfh->ctrl_handler, p);
2071 if (vfd->ctrl_handler)
2072 return v4l2_s_ext_ctrls(NULL, vfd->ctrl_handler, p);
2073 if (ops->vidioc_s_ext_ctrls == NULL)
2074 return -ENOTTY;
2075 return check_ext_ctrls(p, 0) ? ops->vidioc_s_ext_ctrls(file, fh, p) :
2076 -EINVAL;
2077}
2078
2079static int v4l_try_ext_ctrls(const struct v4l2_ioctl_ops *ops,
2080 struct file *file, void *fh, void *arg)
2081{
2082 struct video_device *vfd = video_devdata(file);
2083 struct v4l2_ext_controls *p = arg;
7a3ed2d9
HV		 2084 struct v4l2_fh *vfh =
2085 test_bit(V4L2_FL_USES_V4L2_FH, &vfd->flags) ? fh : NULL;
efbceecd
HV		 2086
2087 p->error_idx = p->count;
2088 if (vfh && vfh->ctrl_handler)
2089 return v4l2_try_ext_ctrls(vfh->ctrl_handler, p);
2090 if (vfd->ctrl_handler)
2091 return v4l2_try_ext_ctrls(vfd->ctrl_handler, p);
2092 if (ops->vidioc_try_ext_ctrls == NULL)
2093 return -ENOTTY;
2094 return check_ext_ctrls(p, 0) ? ops->vidioc_try_ext_ctrls(file, fh, p) :
2095 -EINVAL;
2096}
2097
d84f2d94
HV		 2098static int v4l_g_crop(const struct v4l2_ioctl_ops *ops,
2099 struct file *file, void *fh, void *arg)
2100{
2101 struct v4l2_crop *p = arg;
2102 struct v4l2_selection s = {
2103 .type = p->type,
2104 };
2105 int ret;
2106
2107 if (ops->vidioc_g_crop)
2108 return ops->vidioc_g_crop(file, fh, p);
2109 /* simulate capture crop using selection api */
2110
2111 /* crop means compose for output devices */
2112 if (V4L2_TYPE_IS_OUTPUT(p->type))
2113 s.target = V4L2_SEL_TGT_COMPOSE_ACTIVE;
2114 else
2115 s.target = V4L2_SEL_TGT_CROP_ACTIVE;
2116
2117 ret = ops->vidioc_g_selection(file, fh, &s);
2118
2119 /* copying results to old structure on success */
2120 if (!ret)
2121 p->c = s.r;
2122 return ret;
2123}
2124
2125static int v4l_s_crop(const struct v4l2_ioctl_ops *ops,
2126 struct file *file, void *fh, void *arg)
2127{
2128 struct v4l2_crop *p = arg;
2129 struct v4l2_selection s = {
2130 .type = p->type,
2131 .r = p->c,
2132 };
2133
2134 if (ops->vidioc_s_crop)
2135 return ops->vidioc_s_crop(file, fh, p);
2136 /* simulate capture crop using selection api */
2137
2138 /* crop means compose for output devices */
2139 if (V4L2_TYPE_IS_OUTPUT(p->type))
2140 s.target = V4L2_SEL_TGT_COMPOSE_ACTIVE;
2141 else
2142 s.target = V4L2_SEL_TGT_CROP_ACTIVE;
2143
2144 return ops->vidioc_s_selection(file, fh, &s);
2145}
2146
2147static int v4l_cropcap(const struct v4l2_ioctl_ops *ops,
2148 struct file *file, void *fh, void *arg)
2149{
2150 struct v4l2_cropcap *p = arg;
95dd7b7e
HV		 2151 struct v4l2_selection s = { .type = p->type };
2152 int ret = 0;
d84f2d94 2153
95dd7b7e
HV		 2154 /* setting trivial pixelaspect */
2155 p->pixelaspect.numerator = 1;
2156 p->pixelaspect.denominator = 1;
d84f2d94 2157
95dd7b7e
HV		 2158 /*
2159 * The determine_valid_ioctls() call already should ensure
2160 * that this can never happen, but just in case...
2161 */
1ca830b1 2162 if (WARN_ON(!ops->vidioc_cropcap && !ops->vidioc_g_selection))
95dd7b7e 2163 return -ENOTTY;
d84f2d94 2164
95dd7b7e
HV		 2165 if (ops->vidioc_cropcap)
2166 ret = ops->vidioc_cropcap(file, fh, p);
d84f2d94 2167
95dd7b7e
HV		 2168 if (!ops->vidioc_g_selection)
2169 return ret;
d84f2d94 2170
95dd7b7e
HV		 2171 /*
2172 * Ignore ENOTTY or ENOIOCTLCMD error returns, just use the
2173 * square pixel aspect ratio in that case.
2174 */
2175 if (ret && ret != -ENOTTY && ret != -ENOIOCTLCMD)
2176 return ret;
d84f2d94 2177
95dd7b7e 2178 /* Use g_selection() to fill in the bounds and defrect rectangles */
9409945c 2179
95dd7b7e
HV		 2180 /* obtaining bounds */
2181 if (V4L2_TYPE_IS_OUTPUT(p->type))
2182 s.target = V4L2_SEL_TGT_COMPOSE_BOUNDS;
2183 else
2184 s.target = V4L2_SEL_TGT_CROP_BOUNDS;
2185
2186 ret = ops->vidioc_g_selection(file, fh, &s);
2187 if (ret)
2188 return ret;
2189 p->bounds = s.r;
2190
2191 /* obtaining defrect */
2192 if (V4L2_TYPE_IS_OUTPUT(p->type))
2193 s.target = V4L2_SEL_TGT_COMPOSE_DEFAULT;
2194 else
2195 s.target = V4L2_SEL_TGT_CROP_DEFAULT;
2196
2197 ret = ops->vidioc_g_selection(file, fh, &s);
2198 if (ret)
2199 return ret;
2200 p->defrect = s.r;
9409945c 2201
d84f2d94
HV		 2202 return 0;
2203}
2204
f16f77b0
HV		 2205static int v4l_log_status(const struct v4l2_ioctl_ops *ops,
2206 struct file *file, void *fh, void *arg)
2207{
2208 struct video_device *vfd = video_devdata(file);
2209 int ret;
2210
2211 if (vfd->v4l2_dev)
2212 pr_info("%s: ================= START STATUS =================\n",
2213 vfd->v4l2_dev->name);
2214 ret = ops->vidioc_log_status(file, fh);
2215 if (vfd->v4l2_dev)
2216 pr_info("%s: ================== END STATUS ==================\n",
2217 vfd->v4l2_dev->name);
2218 return ret;
2219}
2220
2221static int v4l_dbg_g_register(const struct v4l2_ioctl_ops *ops,
2222 struct file *file, void *fh, void *arg)
2223{
2224#ifdef CONFIG_VIDEO_ADV_DEBUG
2225 struct v4l2_dbg_register *p = arg;
79b0c640
HV		 2226 struct video_device *vfd = video_devdata(file);
2227 struct v4l2_subdev *sd;
2228 int idx = 0;
f16f77b0
HV		 2229
2230 if (!capable(CAP_SYS_ADMIN))
2231 return -EPERM;
3eef2510 2232 if (p->match.type == V4L2_CHIP_MATCH_SUBDEV) {
79b0c640
HV		 2233 if (vfd->v4l2_dev == NULL)
2234 return -EINVAL;
3eef2510
HV		 2235 v4l2_device_for_each_subdev(sd, vfd->v4l2_dev)
2236 if (p->match.addr == idx++)
79b0c640 2237 return v4l2_subdev_call(sd, core, g_register, p);
79b0c640
HV		 2238 return -EINVAL;
2239 }
191b79b0
HV		 2240 if (ops->vidioc_g_register && p->match.type == V4L2_CHIP_MATCH_BRIDGE &&
2241 (ops->vidioc_g_chip_info || p->match.addr == 0))
79b0c640
HV		 2242 return ops->vidioc_g_register(file, fh, p);
2243 return -EINVAL;
f16f77b0
HV		 2244#else
2245 return -ENOTTY;
2246#endif
2247}
2248
2249static int v4l_dbg_s_register(const struct v4l2_ioctl_ops *ops,
2250 struct file *file, void *fh, void *arg)
2251{
2252#ifdef CONFIG_VIDEO_ADV_DEBUG
977ba3b1 2253 const struct v4l2_dbg_register *p = arg;
79b0c640
HV		 2254 struct video_device *vfd = video_devdata(file);
2255 struct v4l2_subdev *sd;
2256 int idx = 0;
f16f77b0
HV		 2257
2258 if (!capable(CAP_SYS_ADMIN))
2259 return -EPERM;
3eef2510 2260 if (p->match.type == V4L2_CHIP_MATCH_SUBDEV) {
79b0c640
HV		 2261 if (vfd->v4l2_dev == NULL)
2262 return -EINVAL;
3eef2510
HV		 2263 v4l2_device_for_each_subdev(sd, vfd->v4l2_dev)
2264 if (p->match.addr == idx++)
79b0c640 2265 return v4l2_subdev_call(sd, core, s_register, p);
79b0c640
HV		 2266 return -EINVAL;
2267 }
191b79b0
HV		 2268 if (ops->vidioc_s_register && p->match.type == V4L2_CHIP_MATCH_BRIDGE &&
2269 (ops->vidioc_g_chip_info || p->match.addr == 0))
79b0c640
HV		 2270 return ops->vidioc_s_register(file, fh, p);
2271 return -EINVAL;
f16f77b0
HV		 2272#else
2273 return -ENOTTY;
2274#endif
2275}
2276
96b03d2a 2277static int v4l_dbg_g_chip_info(const struct v4l2_ioctl_ops *ops,
79b0c640
HV		 2278 struct file *file, void *fh, void *arg)
2279{
cd634f1b 2280#ifdef CONFIG_VIDEO_ADV_DEBUG
79b0c640 2281 struct video_device *vfd = video_devdata(file);
96b03d2a 2282 struct v4l2_dbg_chip_info *p = arg;
79b0c640
HV		 2283 struct v4l2_subdev *sd;
2284 int idx = 0;
2285
2286 switch (p->match.type) {
2287 case V4L2_CHIP_MATCH_BRIDGE:
79b0c640
HV		 2288 if (ops->vidioc_s_register)
2289 p->flags |= V4L2_CHIP_FL_WRITABLE;
2290 if (ops->vidioc_g_register)
2291 p->flags |= V4L2_CHIP_FL_READABLE;
1c1d86a1 2292 strlcpy(p->name, vfd->v4l2_dev->name, sizeof(p->name));
96b03d2a
HV		 2293 if (ops->vidioc_g_chip_info)
2294 return ops->vidioc_g_chip_info(file, fh, arg);
0f0fe4b9
HV		 2295 if (p->match.addr)
2296 return -EINVAL;
79b0c640
HV		 2297 return 0;
2298
3eef2510 2299 case V4L2_CHIP_MATCH_SUBDEV:
79b0c640
HV		 2300 if (vfd->v4l2_dev == NULL)
2301 break;
2302 v4l2_device_for_each_subdev(sd, vfd->v4l2_dev) {
3eef2510
HV		 2303 if (p->match.addr != idx++)
2304 continue;
2305 if (sd->ops->core && sd->ops->core->s_register)
2306 p->flags |= V4L2_CHIP_FL_WRITABLE;
2307 if (sd->ops->core && sd->ops->core->g_register)
2308 p->flags |= V4L2_CHIP_FL_READABLE;
2309 strlcpy(p->name, sd->name, sizeof(p->name));
2310 return 0;
79b0c640
HV		 2311 }
2312 break;
2313 }
2314 return -EINVAL;
cd634f1b
HV		 2315#else
2316 return -ENOTTY;
2317#endif
79b0c640
HV		 2318}
2319
458aa4a6
HV		 2320static int v4l_dqevent(const struct v4l2_ioctl_ops *ops,
2321 struct file *file, void *fh, void *arg)
2322{
2323 return v4l2_event_dequeue(fh, arg, file->f_flags & O_NONBLOCK);
2324}
2325
2326static int v4l_subscribe_event(const struct v4l2_ioctl_ops *ops,
2327 struct file *file, void *fh, void *arg)
2328{
2329 return ops->vidioc_subscribe_event(fh, arg);
2330}
2331
2332static int v4l_unsubscribe_event(const struct v4l2_ioctl_ops *ops,
2333 struct file *file, void *fh, void *arg)
2334{
2335 return ops->vidioc_unsubscribe_event(fh, arg);
2336}
2337
2338static int v4l_g_sliced_vbi_cap(const struct v4l2_ioctl_ops *ops,
2339 struct file *file, void *fh, void *arg)
2340{
2341 struct v4l2_sliced_vbi_cap *p = arg;
4b20259f
HV		 2342 int ret = check_fmt(file, p->type);
2343
2344 if (ret)
2345 return ret;
458aa4a6
HV		 2346
2347 /* Clear up to type, everything after type is zeroed already */
2348 memset(p, 0, offsetof(struct v4l2_sliced_vbi_cap, type));
2349
2350 return ops->vidioc_g_sliced_vbi_cap(file, fh, p);
2351}
2352
82b655bf
HV		 2353static int v4l_enum_freq_bands(const struct v4l2_ioctl_ops *ops,
2354 struct file *file, void *fh, void *arg)
2355{
2356 struct video_device *vfd = video_devdata(file);
2357 struct v4l2_frequency_band *p = arg;
2358 enum v4l2_tuner_type type;
2359 int err;
2360
84099a28 2361 if (vfd->vfl_type == VFL_TYPE_SDR) {
f3c3ecec 2362 if (p->type != V4L2_TUNER_SDR && p->type != V4L2_TUNER_RF)
84099a28
AP		 2363 return -EINVAL;
2364 type = p->type;
2365 } else {
2366 type = (vfd->vfl_type == VFL_TYPE_RADIO) ?
2367 V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV;
2368 if (type != p->type)
2369 return -EINVAL;
2370 }
a7f404af
HV		 2371 if (ops->vidioc_enum_freq_bands) {
2372 err = ops->vidioc_enum_freq_bands(file, fh, p);
2373 if (err != -ENOTTY)
2374 return err;
2375 }
73f35418 2376 if (is_valid_ioctl(vfd, VIDIOC_G_TUNER)) {
82b655bf
HV		 2377 struct v4l2_tuner t = {
2378 .index = p->tuner,
2379 .type = type,
2380 };
2381
aa4d9b53
HV		 2382 if (p->index)
2383 return -EINVAL;
82b655bf
HV		 2384 err = ops->vidioc_g_tuner(file, fh, &t);
2385 if (err)
2386 return err;
2387 p->capability = t.capability | V4L2_TUNER_CAP_FREQ_BANDS;
2388 p->rangelow = t.rangelow;
2389 p->rangehigh = t.rangehigh;
2390 p->modulation = (type == V4L2_TUNER_RADIO) ?
2391 V4L2_BAND_MODULATION_FM : V4L2_BAND_MODULATION_VSB;
2392 return 0;
2393 }
73f35418 2394 if (is_valid_ioctl(vfd, VIDIOC_G_MODULATOR)) {
82b655bf
HV		 2395 struct v4l2_modulator m = {
2396 .index = p->tuner,
2397 };
2398
2399 if (type != V4L2_TUNER_RADIO)
2400 return -EINVAL;
aa4d9b53
HV		 2401 if (p->index)
2402 return -EINVAL;
82b655bf
HV		 2403 err = ops->vidioc_g_modulator(file, fh, &m);
2404 if (err)
2405 return err;
2406 p->capability = m.capability | V4L2_TUNER_CAP_FREQ_BANDS;
2407 p->rangelow = m.rangelow;
2408 p->rangehigh = m.rangehigh;
2409 p->modulation = (type == V4L2_TUNER_RADIO) ?
2410 V4L2_BAND_MODULATION_FM : V4L2_BAND_MODULATION_VSB;
2411 return 0;
2412 }
2413 return -ENOTTY;
2414}
2415
4839e6c2
HV		 2416struct v4l2_ioctl_info {
2417 unsigned int ioctl;
27cd2aba 2418 u32 flags;
4839e6c2 2419 const char * const name;
86748f35
HV		 2420 union {
2421 u32 offset;
2422 int (*func)(const struct v4l2_ioctl_ops *ops,
2423 struct file *file, void *fh, void *p);
26ddcbcc 2424 } u;
86748f35 2425 void (*debug)(const void *arg, bool write_only);
4839e6c2
HV		 2426};
2427
2428/* This control needs a priority check */
2429#define INFO_FL_PRIO (1 << 0)
2430/* This control can be valid if the filehandle passes a control handler. */
2431#define INFO_FL_CTRL (1 << 1)
86748f35
HV		 2432/* This is a standard ioctl, no need for special code */
2433#define INFO_FL_STD (1 << 2)
2434/* This is ioctl has its own function */
2435#define INFO_FL_FUNC (1 << 3)
5a5adf6b
HV		 2436/* Queuing ioctl */
2437#define INFO_FL_QUEUE (1 << 4)
27cd2aba
HV		 2438/* Zero struct from after the field to the end */
2439#define INFO_FL_CLEAR(v4l2_struct, field) \
2440 ((offsetof(struct v4l2_struct, field) + \
2441 sizeof(((struct v4l2_struct *)0)->field)) << 16)
2442#define INFO_FL_CLEAR_MASK (_IOC_SIZEMASK << 16)
4839e6c2 2443
86748f35
HV		 2444#define IOCTL_INFO_STD(_ioctl, _vidioc, _debug, _flags) \
2445 [_IOC_NR(_ioctl)] = { \
2446 .ioctl = _ioctl, \
2447 .flags = _flags | INFO_FL_STD, \
2448 .name = #_ioctl, \
26ddcbcc 2449 .u.offset = offsetof(struct v4l2_ioctl_ops, _vidioc), \
86748f35
HV		 2450 .debug = _debug, \
2451 }
2452
2453#define IOCTL_INFO_FNC(_ioctl, _func, _debug, _flags) \
2454 [_IOC_NR(_ioctl)] = { \
2455 .ioctl = _ioctl, \
2456 .flags = _flags | INFO_FL_FUNC, \
2457 .name = #_ioctl, \
26ddcbcc 2458 .u.func = _func, \
86748f35
HV		 2459 .debug = _debug, \
2460 }
2461
4839e6c2 2462static struct v4l2_ioctl_info v4l2_ioctls[] = {
59076122 2463 IOCTL_INFO_FNC(VIDIOC_QUERYCAP, v4l_querycap, v4l_print_querycap, 0),
be6c64e4 2464 IOCTL_INFO_FNC(VIDIOC_ENUM_FMT, v4l_enum_fmt, v4l_print_fmtdesc, INFO_FL_CLEAR(v4l2_fmtdesc, type)),
e5ce558a 2465 IOCTL_INFO_FNC(VIDIOC_G_FMT, v4l_g_fmt, v4l_print_format, 0),
be6c64e4 2466 IOCTL_INFO_FNC(VIDIOC_S_FMT, v4l_s_fmt, v4l_print_format, INFO_FL_PRIO),
5a5adf6b
HV		 2467 IOCTL_INFO_FNC(VIDIOC_REQBUFS, v4l_reqbufs, v4l_print_requestbuffers, INFO_FL_PRIO | INFO_FL_QUEUE),
2468 IOCTL_INFO_FNC(VIDIOC_QUERYBUF, v4l_querybuf, v4l_print_buffer, INFO_FL_QUEUE | INFO_FL_CLEAR(v4l2_buffer, length)),
be6c64e4
HV		 2469 IOCTL_INFO_STD(VIDIOC_G_FBUF, vidioc_g_fbuf, v4l_print_framebuffer, 0),
2470 IOCTL_INFO_STD(VIDIOC_S_FBUF, vidioc_s_fbuf, v4l_print_framebuffer, INFO_FL_PRIO),
737c097b 2471 IOCTL_INFO_FNC(VIDIOC_OVERLAY, v4l_overlay, v4l_print_u32, INFO_FL_PRIO),
5a5adf6b 2472 IOCTL_INFO_FNC(VIDIOC_QBUF, v4l_qbuf, v4l_print_buffer, INFO_FL_QUEUE),
b799d09a 2473 IOCTL_INFO_STD(VIDIOC_EXPBUF, vidioc_expbuf, v4l_print_exportbuffer, INFO_FL_QUEUE | INFO_FL_CLEAR(v4l2_exportbuffer, flags)),
5a5adf6b
HV		 2474 IOCTL_INFO_FNC(VIDIOC_DQBUF, v4l_dqbuf, v4l_print_buffer, INFO_FL_QUEUE),
2475 IOCTL_INFO_FNC(VIDIOC_STREAMON, v4l_streamon, v4l_print_buftype, INFO_FL_PRIO | INFO_FL_QUEUE),
2476 IOCTL_INFO_FNC(VIDIOC_STREAMOFF, v4l_streamoff, v4l_print_buftype, INFO_FL_PRIO | INFO_FL_QUEUE),
eb3728ed
HV		 2477 IOCTL_INFO_FNC(VIDIOC_G_PARM, v4l_g_parm, v4l_print_streamparm, INFO_FL_CLEAR(v4l2_streamparm, type)),
2478 IOCTL_INFO_FNC(VIDIOC_S_PARM, v4l_s_parm, v4l_print_streamparm, INFO_FL_PRIO),
ca371575 2479 IOCTL_INFO_STD(VIDIOC_G_STD, vidioc_g_std, v4l_print_std, 0),
4b1e2e4d
HV		 2480 IOCTL_INFO_FNC(VIDIOC_S_STD, v4l_s_std, v4l_print_std, INFO_FL_PRIO),
2481 IOCTL_INFO_FNC(VIDIOC_ENUMSTD, v4l_enumstd, v4l_print_standard, INFO_FL_CLEAR(v4l2_standard, index)),
59076122 2482 IOCTL_INFO_FNC(VIDIOC_ENUMINPUT, v4l_enuminput, v4l_print_enuminput, INFO_FL_CLEAR(v4l2_input, index)),
efbceecd
HV		 2483 IOCTL_INFO_FNC(VIDIOC_G_CTRL, v4l_g_ctrl, v4l_print_control, INFO_FL_CTRL | INFO_FL_CLEAR(v4l2_control, id)),
2484 IOCTL_INFO_FNC(VIDIOC_S_CTRL, v4l_s_ctrl, v4l_print_control, INFO_FL_PRIO | INFO_FL_CTRL),
4b1e2e4d
HV		 2485 IOCTL_INFO_FNC(VIDIOC_G_TUNER, v4l_g_tuner, v4l_print_tuner, INFO_FL_CLEAR(v4l2_tuner, index)),
2486 IOCTL_INFO_FNC(VIDIOC_S_TUNER, v4l_s_tuner, v4l_print_tuner, INFO_FL_PRIO),
59076122
HV		 2487 IOCTL_INFO_STD(VIDIOC_G_AUDIO, vidioc_g_audio, v4l_print_audio, 0),
2488 IOCTL_INFO_STD(VIDIOC_S_AUDIO, vidioc_s_audio, v4l_print_audio, INFO_FL_PRIO),
efbceecd
HV		 2489 IOCTL_INFO_FNC(VIDIOC_QUERYCTRL, v4l_queryctrl, v4l_print_queryctrl, INFO_FL_CTRL | INFO_FL_CLEAR(v4l2_queryctrl, id)),
2490 IOCTL_INFO_FNC(VIDIOC_QUERYMENU, v4l_querymenu, v4l_print_querymenu, INFO_FL_CTRL | INFO_FL_CLEAR(v4l2_querymenu, index)),
59076122
HV		 2491 IOCTL_INFO_STD(VIDIOC_G_INPUT, vidioc_g_input, v4l_print_u32, 0),
2492 IOCTL_INFO_FNC(VIDIOC_S_INPUT, v4l_s_input, v4l_print_u32, INFO_FL_PRIO),
f9402a94
HV		 2493 IOCTL_INFO_STD(VIDIOC_G_EDID, vidioc_g_edid, v4l_print_edid, 0),
2494 IOCTL_INFO_STD(VIDIOC_S_EDID, vidioc_s_edid, v4l_print_edid, INFO_FL_PRIO),
59076122
HV		 2495 IOCTL_INFO_STD(VIDIOC_G_OUTPUT, vidioc_g_output, v4l_print_u32, 0),
2496 IOCTL_INFO_FNC(VIDIOC_S_OUTPUT, v4l_s_output, v4l_print_u32, INFO_FL_PRIO),
2497 IOCTL_INFO_FNC(VIDIOC_ENUMOUTPUT, v4l_enumoutput, v4l_print_enumoutput, INFO_FL_CLEAR(v4l2_output, index)),
2498 IOCTL_INFO_STD(VIDIOC_G_AUDOUT, vidioc_g_audout, v4l_print_audioout, 0),
2499 IOCTL_INFO_STD(VIDIOC_S_AUDOUT, vidioc_s_audout, v4l_print_audioout, INFO_FL_PRIO),
82b655bf 2500 IOCTL_INFO_FNC(VIDIOC_G_MODULATOR, v4l_g_modulator, v4l_print_modulator, INFO_FL_CLEAR(v4l2_modulator, index)),
4124a3c4 2501 IOCTL_INFO_FNC(VIDIOC_S_MODULATOR, v4l_s_modulator, v4l_print_modulator, INFO_FL_PRIO),
4b1e2e4d
HV		 2502 IOCTL_INFO_FNC(VIDIOC_G_FREQUENCY, v4l_g_frequency, v4l_print_frequency, INFO_FL_CLEAR(v4l2_frequency, tuner)),
2503 IOCTL_INFO_FNC(VIDIOC_S_FREQUENCY, v4l_s_frequency, v4l_print_frequency, INFO_FL_PRIO),
d84f2d94
HV		 2504 IOCTL_INFO_FNC(VIDIOC_CROPCAP, v4l_cropcap, v4l_print_cropcap, INFO_FL_CLEAR(v4l2_cropcap, type)),
2505 IOCTL_INFO_FNC(VIDIOC_G_CROP, v4l_g_crop, v4l_print_crop, INFO_FL_CLEAR(v4l2_crop, type)),
2506 IOCTL_INFO_FNC(VIDIOC_S_CROP, v4l_s_crop, v4l_print_crop, INFO_FL_PRIO),
865c4642
HV		 2507 IOCTL_INFO_STD(VIDIOC_G_SELECTION, vidioc_g_selection, v4l_print_selection, INFO_FL_CLEAR(v4l2_selection, r)),
2508 IOCTL_INFO_STD(VIDIOC_S_SELECTION, vidioc_s_selection, v4l_print_selection, INFO_FL_PRIO | INFO_FL_CLEAR(v4l2_selection, r)),
d806f2df
HV		 2509 IOCTL_INFO_STD(VIDIOC_G_JPEGCOMP, vidioc_g_jpegcomp, v4l_print_jpegcompression, 0),
2510 IOCTL_INFO_STD(VIDIOC_S_JPEGCOMP, vidioc_s_jpegcomp, v4l_print_jpegcompression, INFO_FL_PRIO),
4b1e2e4d 2511 IOCTL_INFO_FNC(VIDIOC_QUERYSTD, v4l_querystd, v4l_print_std, 0),
be6c64e4 2512 IOCTL_INFO_FNC(VIDIOC_TRY_FMT, v4l_try_fmt, v4l_print_format, 0),
59076122
HV		 2513 IOCTL_INFO_STD(VIDIOC_ENUMAUDIO, vidioc_enumaudio, v4l_print_audio, INFO_FL_CLEAR(v4l2_audio, index)),
2514 IOCTL_INFO_STD(VIDIOC_ENUMAUDOUT, vidioc_enumaudout, v4l_print_audioout, INFO_FL_CLEAR(v4l2_audioout, index)),
d0547cba
HV		 2515 IOCTL_INFO_FNC(VIDIOC_G_PRIORITY, v4l_g_priority, v4l_print_u32, 0),
2516 IOCTL_INFO_FNC(VIDIOC_S_PRIORITY, v4l_s_priority, v4l_print_u32, INFO_FL_PRIO),
458aa4a6 2517 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 2518 IOCTL_INFO_FNC(VIDIOC_LOG_STATUS, v4l_log_status, v4l_print_newline, 0),
efbceecd
HV		 2519 IOCTL_INFO_FNC(VIDIOC_G_EXT_CTRLS, v4l_g_ext_ctrls, v4l_print_ext_controls, INFO_FL_CTRL),
2520 IOCTL_INFO_FNC(VIDIOC_S_EXT_CTRLS, v4l_s_ext_ctrls, v4l_print_ext_controls, INFO_FL_PRIO | INFO_FL_CTRL),
9bc31633 2521 IOCTL_INFO_FNC(VIDIOC_TRY_EXT_CTRLS, v4l_try_ext_ctrls, v4l_print_ext_controls, INFO_FL_CTRL),
458aa4a6
HV		 2522 IOCTL_INFO_STD(VIDIOC_ENUM_FRAMESIZES, vidioc_enum_framesizes, v4l_print_frmsizeenum, INFO_FL_CLEAR(v4l2_frmsizeenum, pixel_format)),
2523 IOCTL_INFO_STD(VIDIOC_ENUM_FRAMEINTERVALS, vidioc_enum_frameintervals, v4l_print_frmivalenum, INFO_FL_CLEAR(v4l2_frmivalenum, height)),
d806f2df
HV		 2524 IOCTL_INFO_STD(VIDIOC_G_ENC_INDEX, vidioc_g_enc_index, v4l_print_enc_idx, 0),
2525 IOCTL_INFO_STD(VIDIOC_ENCODER_CMD, vidioc_encoder_cmd, v4l_print_encoder_cmd, INFO_FL_PRIO | INFO_FL_CLEAR(v4l2_encoder_cmd, flags)),
2526 IOCTL_INFO_STD(VIDIOC_TRY_ENCODER_CMD, vidioc_try_encoder_cmd, v4l_print_encoder_cmd, INFO_FL_CLEAR(v4l2_encoder_cmd, flags)),
2527 IOCTL_INFO_STD(VIDIOC_DECODER_CMD, vidioc_decoder_cmd, v4l_print_decoder_cmd, INFO_FL_PRIO),
2528 IOCTL_INFO_STD(VIDIOC_TRY_DECODER_CMD, vidioc_try_decoder_cmd, v4l_print_decoder_cmd, 0),
f16f77b0
HV		 2529 IOCTL_INFO_FNC(VIDIOC_DBG_S_REGISTER, v4l_dbg_s_register, v4l_print_dbg_register, 0),
2530 IOCTL_INFO_FNC(VIDIOC_DBG_G_REGISTER, v4l_dbg_g_register, v4l_print_dbg_register, 0),
4b1e2e4d 2531 IOCTL_INFO_FNC(VIDIOC_S_HW_FREQ_SEEK, v4l_s_hw_freq_seek, v4l_print_hw_freq_seek, INFO_FL_PRIO),
f932af80 2532 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 2533 IOCTL_INFO_STD(VIDIOC_G_DV_TIMINGS, vidioc_g_dv_timings, v4l_print_dv_timings, 0),
458aa4a6
HV		 2534 IOCTL_INFO_FNC(VIDIOC_DQEVENT, v4l_dqevent, v4l_print_event, 0),
2535 IOCTL_INFO_FNC(VIDIOC_SUBSCRIBE_EVENT, v4l_subscribe_event, v4l_print_event_subscription, 0),
2536 IOCTL_INFO_FNC(VIDIOC_UNSUBSCRIBE_EVENT, v4l_unsubscribe_event, v4l_print_event_subscription, 0),
5a5adf6b
HV		 2537 IOCTL_INFO_FNC(VIDIOC_CREATE_BUFS, v4l_create_bufs, v4l_print_create_buffers, INFO_FL_PRIO | INFO_FL_QUEUE),
2538 IOCTL_INFO_FNC(VIDIOC_PREPARE_BUF, v4l_prepare_buf, v4l_print_buffer, INFO_FL_QUEUE),
f932af80 2539 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 2540 IOCTL_INFO_STD(VIDIOC_QUERY_DV_TIMINGS, vidioc_query_dv_timings, v4l_print_dv_timings, 0),
a1acb8f9 2541 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 2542 IOCTL_INFO_FNC(VIDIOC_ENUM_FREQ_BANDS, v4l_enum_freq_bands, v4l_print_freq_band, 0),
96b03d2a 2543 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 2544 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		 2545};
2546#define V4L2_IOCTLS ARRAY_SIZE(v4l2_ioctls)
2547
2548bool v4l2_is_known_ioctl(unsigned int cmd)
2549{
2550 if (_IOC_NR(cmd) >= V4L2_IOCTLS)
2551 return false;
2552 return v4l2_ioctls[_IOC_NR(cmd)].ioctl == cmd;
2553}
2554
5a5adf6b
HV		 2555struct mutex *v4l2_ioctl_get_lock(struct video_device *vdev, unsigned cmd)
2556{
2557 if (_IOC_NR(cmd) >= V4L2_IOCTLS)
2558 return vdev->lock;
2559 if (test_bit(_IOC_NR(cmd), vdev->disable_locking))
2560 return NULL;
2561 if (vdev->queue && vdev->queue->lock &&
2562 (v4l2_ioctls[_IOC_NR(cmd)].flags & INFO_FL_QUEUE))
2563 return vdev->queue->lock;
2564 return vdev->lock;
2565}
2566
4839e6c2
HV		 2567/* Common ioctl debug function. This function can be used by
2568 external ioctl messages as well as internal V4L ioctl */
4a085168 2569void v4l_printk_ioctl(const char *prefix, unsigned int cmd)
4839e6c2 2570{
86748f35 2571 const char *dir, *type;
4839e6c2 2572
4a085168
HV		 2573 if (prefix)
2574 printk(KERN_DEBUG "%s: ", prefix);
2575
4839e6c2
HV		 2576 switch (_IOC_TYPE(cmd)) {
2577 case 'd':
2578 type = "v4l2_int";
2579 break;
2580 case 'V':
2581 if (_IOC_NR(cmd) >= V4L2_IOCTLS) {
2582 type = "v4l2";
2583 break;
2584 }
86748f35 2585 pr_cont("%s", v4l2_ioctls[_IOC_NR(cmd)].name);
4839e6c2
HV		 2586 return;
2587 default:
2588 type = "unknown";
86748f35 2589 break;
4839e6c2
HV		 2590 }
2591
2592 switch (_IOC_DIR(cmd)) {
2593 case _IOC_NONE: dir = "--"; break;
2594 case _IOC_READ: dir = "r-"; break;
2595 case _IOC_WRITE: dir = "-w"; break;
2596 case _IOC_READ | _IOC_WRITE: dir = "rw"; break;
2597 default: dir = "*ERR*"; break;
2598 }
86748f35 2599 pr_cont("%s ioctl '%c', dir=%s, #%d (0x%08x)",
4839e6c2
HV		 2600 type, _IOC_TYPE(cmd), dir, _IOC_NR(cmd), cmd);
2601}
2602EXPORT_SYMBOL(v4l_printk_ioctl);
2603
069b7479 2604static long __video_do_ioctl(struct file *file,
35ea11ff
HV		 2605 unsigned int cmd, void *arg)
2606{
2607 struct video_device *vfd = video_devdata(file);
a399810c 2608 const struct v4l2_ioctl_ops *ops = vfd->ioctl_ops;
86748f35
HV		 2609 bool write_only = false;
2610 struct v4l2_ioctl_info default_info;
2611 const struct v4l2_ioctl_info *info;
d5fbf32f 2612 void *fh = file->private_data;
99cd47bc 2613 struct v4l2_fh *vfh = NULL;
17028cdb 2614 int dev_debug = vfd->dev_debug;
9190d191 2615 long ret = -ENOTTY;
35ea11ff 2616
6a717883 2617 if (ops == NULL) {
4a085168
HV		 2618 pr_warn("%s: has no ioctl_ops.\n",
2619 video_device_node_name(vfd));
9190d191 2620 return ret;
6a717883
HV		 2621 }
2622
b7284bb0 2623 if (test_bit(V4L2_FL_USES_V4L2_FH, &vfd->flags))
99cd47bc
HV		 2624 vfh = file->private_data;
2625
48ea0be0 2626 if (v4l2_is_known_ioctl(cmd)) {
86748f35 2627 info = &v4l2_ioctls[_IOC_NR(cmd)];
48ea0be0 2628
2e5e435f 2629 if (!test_bit(_IOC_NR(cmd), vfd->valid_ioctls) &&
48ea0be0 2630 !((info->flags & INFO_FL_CTRL) && vfh && vfh->ctrl_handler))
86748f35 2631 goto done;
4b902fec 2632
b7284bb0 2633 if (vfh && (info->flags & INFO_FL_PRIO)) {
4b902fec
HV		 2634 ret = v4l2_prio_check(vfd->prio, vfh->prio);
2635 if (ret)
86748f35 2636 goto done;
4b902fec 2637 }
86748f35
HV		 2638 } else {
2639 default_info.ioctl = cmd;
2640 default_info.flags = 0;
f18d8e07 2641 default_info.debug = v4l_print_default;
86748f35 2642 info = &default_info;
48ea0be0
HV		 2643 }
2644
86748f35 2645 write_only = _IOC_DIR(cmd) == _IOC_WRITE;
86748f35
HV		 2646 if (info->flags & INFO_FL_STD) {
2647 typedef int (*vidioc_op)(struct file *file, void *fh, void *p);
2648 const void *p = vfd->ioctl_ops;
26ddcbcc 2649 const vidioc_op *vidioc = p + info->u.offset;
86748f35
HV		 2650
2651 ret = (*vidioc)(file, fh, arg);
86748f35 2652 } else if (info->flags & INFO_FL_FUNC) {
26ddcbcc 2653 ret = info->u.func(ops, file, fh, arg);
f18d8e07
HV		 2654 } else if (!ops->vidioc_default) {
2655 ret = -ENOTTY;
2656 } else {
2657 ret = ops->vidioc_default(file, fh,
b7284bb0 2658 vfh ? v4l2_prio_check(vfd->prio, vfh->prio) >= 0 : 0,
f18d8e07 2659 cmd, arg);
48ea0be0 2660 }
99cd47bc 2661
86748f35 2662done:
17028cdb
HV		 2663 if (dev_debug & (V4L2_DEV_DEBUG_IOCTL | V4L2_DEV_DEBUG_IOCTL_ARG)) {
2664 if (!(dev_debug & V4L2_DEV_DEBUG_STREAMING) &&
2665 (cmd == VIDIOC_QBUF || cmd == VIDIOC_DQBUF))
2666 return ret;
2667
4a085168 2668 v4l_printk_ioctl(video_device_node_name(vfd), cmd);
86748f35 2669 if (ret < 0)
505d04bd 2670 pr_cont(": error %ld", ret);
17028cdb 2671 if (!(dev_debug & V4L2_DEV_DEBUG_IOCTL_ARG))
86748f35 2672 pr_cont("\n");
86748f35
HV		 2673 else if (_IOC_DIR(cmd) == _IOC_NONE)
2674 info->debug(arg, write_only);
2675 else {
2676 pr_cont(": ");
2677 info->debug(arg, write_only);
35ea11ff
HV		 2678 }
2679 }
2680
2681 return ret;
2682}
2683
d14e6d76 2684static int check_array_args(unsigned int cmd, void *parg, size_t *array_size,
ba2d35c1 2685 void __user **user_ptr, void ***kernel_ptr)
d14e6d76
PO		 2686{
2687 int ret = 0;
2688
2689 switch (cmd) {
96b1a702 2690 case VIDIOC_PREPARE_BUF:
d14e6d76
PO		 2691 case VIDIOC_QUERYBUF:
2692 case VIDIOC_QBUF:
2693 case VIDIOC_DQBUF: {
2694 struct v4l2_buffer *buf = parg;
2695
2696 if (V4L2_TYPE_IS_MULTIPLANAR(buf->type) && buf->length > 0) {
2697 if (buf->length > VIDEO_MAX_PLANES) {
2698 ret = -EINVAL;
2699 break;
2700 }
2701 *user_ptr = (void __user *)buf->m.planes;
ba2d35c1 2702 *kernel_ptr = (void **)&buf->m.planes;
d14e6d76
PO		 2703 *array_size = sizeof(struct v4l2_plane) * buf->length;
2704 ret = 1;
2705 }
2706 break;
2707 }
2708
dd519bb3
HV		 2709 case VIDIOC_G_EDID:
2710 case VIDIOC_S_EDID: {
2711 struct v4l2_edid *edid = parg;
ed45ce2c
HV		 2712
2713 if (edid->blocks) {
1b8b10cc
HV		 2714 if (edid->blocks > 256) {
2715 ret = -EINVAL;
2716 break;
2717 }
ed45ce2c 2718 *user_ptr = (void __user *)edid->edid;
ba2d35c1 2719 *kernel_ptr = (void **)&edid->edid;
ed45ce2c
HV		 2720 *array_size = edid->blocks * 128;
2721 ret = 1;
2722 }
2723 break;
2724 }
2725
d14e6d76
PO		 2726 case VIDIOC_S_EXT_CTRLS:
2727 case VIDIOC_G_EXT_CTRLS:
2728 case VIDIOC_TRY_EXT_CTRLS: {
2729 struct v4l2_ext_controls *ctrls = parg;
2730
2731 if (ctrls->count != 0) {
6c06108b
DC		 2732 if (ctrls->count > V4L2_CID_MAX_CTRLS) {
2733 ret = -EINVAL;
2734 break;
2735 }
d14e6d76 2736 *user_ptr = (void __user *)ctrls->controls;
ba2d35c1 2737 *kernel_ptr = (void **)&ctrls->controls;
d14e6d76
PO		 2738 *array_size = sizeof(struct v4l2_ext_control)
2739 * ctrls->count;
2740 ret = 1;
2741 }
2742 break;
2743 }
2744 }
2745
2746 return ret;
2747}
2748
fc0a8079
LP		 2749long
2750video_usercopy(struct file *file, unsigned int cmd, unsigned long arg,
2751 v4l2_kioctl func)
35ea11ff
HV		 2752{
2753 char sbuf[128];
2754 void *mbuf = NULL;
1d94aa36 2755 void *parg = (void *)arg;
069b7479 2756 long err = -EINVAL;
d14e6d76
PO		 2757 bool has_array_args;
2758 size_t array_size = 0;
35ea11ff 2759 void __user *user_ptr = NULL;
d14e6d76 2760 void **kernel_ptr = NULL;
35ea11ff 2761
35ea11ff 2762 /* Copy arguments into temp kernel buffer */
337f9d20 2763 if (_IOC_DIR(cmd) != _IOC_NONE) {
35ea11ff
HV		 2764 if (_IOC_SIZE(cmd) <= sizeof(sbuf)) {
2765 parg = sbuf;
2766 } else {
2767 /* too big to allocate from stack */
2768 mbuf = kmalloc(_IOC_SIZE(cmd), GFP_KERNEL);
2769 if (NULL == mbuf)
2770 return -ENOMEM;
2771 parg = mbuf;
2772 }
2773
2774 err = -EFAULT;
19c96e4b 2775 if (_IOC_DIR(cmd) & _IOC_WRITE) {
27cd2aba
HV		 2776 unsigned int n = _IOC_SIZE(cmd);
2777
2778 /*
2779 * In some cases, only a few fields are used as input,
2780 * i.e. when the app sets "index" and then the driver
2781 * fills in the rest of the structure for the thing
2782 * with that index. We only need to copy up the first
2783 * non-input field.
2784 */
2785 if (v4l2_is_known_ioctl(cmd)) {
2786 u32 flags = v4l2_ioctls[_IOC_NR(cmd)].flags;
2787 if (flags & INFO_FL_CLEAR_MASK)
2788 n = (flags & INFO_FL_CLEAR_MASK) >> 16;
2789 }
19c96e4b
TP		 2790
2791 if (copy_from_user(parg, (void __user *)arg, n))
35ea11ff 2792 goto out;
19c96e4b
TP		 2793
2794 /* zero out anything we don't copy from userspace */
2795 if (n < _IOC_SIZE(cmd))
2796 memset((u8 *)parg + n, 0, _IOC_SIZE(cmd) - n);
337f9d20
TP		 2797 } else {
2798 /* read-only ioctl */
2799 memset(parg, 0, _IOC_SIZE(cmd));
19c96e4b 2800 }
35ea11ff
HV		 2801 }
2802
d14e6d76
PO		 2803 err = check_array_args(cmd, parg, &array_size, &user_ptr, &kernel_ptr);
2804 if (err < 0)
2805 goto out;
2806 has_array_args = err;
35ea11ff 2807
d14e6d76
PO		 2808 if (has_array_args) {
2809 /*
2810 * When adding new types of array args, make sure that the
2811 * parent argument to ioctl (which contains the pointer to the
2812 * array) fits into sbuf (so that mbuf will still remain
2813 * unused up to here).
2814 */
2815 mbuf = kmalloc(array_size, GFP_KERNEL);
2816 err = -ENOMEM;
2817 if (NULL == mbuf)
2818 goto out_array_args;
2819 err = -EFAULT;
2820 if (copy_from_user(mbuf, user_ptr, array_size))
2821 goto out_array_args;
2822 *kernel_ptr = mbuf;
35ea11ff
HV		 2823 }
2824
2825 /* Handles IOCTL */
fc0a8079 2826 err = func(file, cmd, parg);
35ea11ff 2827 if (err == -ENOIOCTLCMD)
02bbb814 2828 err = -ENOTTY;
aa32f4c0
HV		 2829 if (err == 0) {
2830 if (cmd == VIDIOC_DQBUF)
2831 trace_v4l2_dqbuf(video_devdata(file)->minor, parg);
2832 else if (cmd == VIDIOC_QBUF)
2833 trace_v4l2_qbuf(video_devdata(file)->minor, parg);
2834 }
35ea11ff 2835
d14e6d76 2836 if (has_array_args) {
ba2d35c1 2837 *kernel_ptr = (void __force *)user_ptr;
d14e6d76 2838 if (copy_to_user(user_ptr, mbuf, array_size))
35ea11ff 2839 err = -EFAULT;
d14e6d76 2840 goto out_array_args;
35ea11ff 2841 }
5d7758ee
HV		 2842 /* VIDIOC_QUERY_DV_TIMINGS can return an error, but still have valid
2843 results that must be returned. */
2844 if (err < 0 && cmd != VIDIOC_QUERY_DV_TIMINGS)
35ea11ff
HV		 2845 goto out;
2846
d14e6d76 2847out_array_args:
35ea11ff
HV		 2848 /* Copy results into user buffer */
2849 switch (_IOC_DIR(cmd)) {
2850 case _IOC_READ:
2851 case (_IOC_WRITE | _IOC_READ):
2852 if (copy_to_user((void __user *)arg, parg, _IOC_SIZE(cmd)))
2853 err = -EFAULT;
2854 break;
2855 }
2856
2857out:
2858 kfree(mbuf);
2859 return err;
2860}
fc0a8079
LP		 2861EXPORT_SYMBOL(video_usercopy);
2862
2863long video_ioctl2(struct file *file,
2864 unsigned int cmd, unsigned long arg)
2865{
2866 return video_usercopy(file, cmd, arg, __video_do_ioctl);
2867}
8a522c91 2868EXPORT_SYMBOL(video_ioctl2);
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