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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> |
5a5adf6b | 29 | #include <media/videobuf2-core.h> |
35ea11ff | 30 | |
aa32f4c0 HV |
31 | #define CREATE_TRACE_POINTS |
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 |
42 | struct std_descr { |
43 | v4l2_std_id std; | |
44 | const char *descr; | |
45 | }; | |
46 | ||
47 | static 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 | */ | |
83 | const 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 | } | |
99 | EXPORT_SYMBOL(v4l2_norm_to_name); | |
100 | ||
51f0b8d5 TP |
101 | /* Returns frame period for the given standard */ |
102 | void 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 | } | |
112 | EXPORT_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. */ | |
116 | int 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 | } | |
125 | EXPORT_SYMBOL(v4l2_video_std_construct); | |
126 | ||
127 | /* ----------------------------------------------------------------- */ | |
128 | /* some arrays for pretty-printing debug messages of enum types */ | |
129 | ||
130 | const 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 | }; | |
142 | EXPORT_SYMBOL(v4l2_field_names); | |
143 | ||
144 | const char *v4l2_type_names[] = { | |
145 | [V4L2_BUF_TYPE_VIDEO_CAPTURE] = "vid-cap", | |
146 | [V4L2_BUF_TYPE_VIDEO_OVERLAY] = "vid-overlay", | |
147 | [V4L2_BUF_TYPE_VIDEO_OUTPUT] = "vid-out", | |
148 | [V4L2_BUF_TYPE_VBI_CAPTURE] = "vbi-cap", | |
149 | [V4L2_BUF_TYPE_VBI_OUTPUT] = "vbi-out", | |
150 | [V4L2_BUF_TYPE_SLICED_VBI_CAPTURE] = "sliced-vbi-cap", | |
151 | [V4L2_BUF_TYPE_SLICED_VBI_OUTPUT] = "sliced-vbi-out", | |
152 | [V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY] = "vid-out-overlay", | |
f8f3914c PO |
153 | [V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE] = "vid-cap-mplane", |
154 | [V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE] = "vid-out-mplane", | |
6f3073b8 | 155 | [V4L2_BUF_TYPE_SDR_CAPTURE] = "sdr-cap", |
35ea11ff HV |
156 | }; |
157 | EXPORT_SYMBOL(v4l2_type_names); | |
158 | ||
159 | static const char *v4l2_memory_names[] = { | |
160 | [V4L2_MEMORY_MMAP] = "mmap", | |
161 | [V4L2_MEMORY_USERPTR] = "userptr", | |
162 | [V4L2_MEMORY_OVERLAY] = "overlay", | |
051c7788 | 163 | [V4L2_MEMORY_DMABUF] = "dmabuf", |
35ea11ff HV |
164 | }; |
165 | ||
d9246240 | 166 | #define prt_names(a, arr) (((unsigned)(a)) < ARRAY_SIZE(arr) ? arr[a] : "unknown") |
35ea11ff HV |
167 | |
168 | /* ------------------------------------------------------------------ */ | |
169 | /* debug help functions */ | |
8ab75e3e | 170 | |
59076122 HV |
171 | static void v4l_print_querycap(const void *arg, bool write_only) |
172 | { | |
173 | const struct v4l2_capability *p = arg; | |
174 | ||
27d5a87c | 175 | pr_cont("driver=%.*s, card=%.*s, bus=%.*s, version=0x%08x, " |
59076122 | 176 | "capabilities=0x%08x, device_caps=0x%08x\n", |
27d5a87c HV |
177 | (int)sizeof(p->driver), p->driver, |
178 | (int)sizeof(p->card), p->card, | |
179 | (int)sizeof(p->bus_info), p->bus_info, | |
59076122 HV |
180 | p->version, p->capabilities, p->device_caps); |
181 | } | |
182 | ||
183 | static void v4l_print_enuminput(const void *arg, bool write_only) | |
184 | { | |
185 | const struct v4l2_input *p = arg; | |
186 | ||
27d5a87c | 187 | pr_cont("index=%u, name=%.*s, type=%u, audioset=0x%x, tuner=%u, " |
59076122 | 188 | "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 | ||
194 | static void v4l_print_enumoutput(const void *arg, bool write_only) | |
195 | { | |
196 | const struct v4l2_output *p = arg; | |
197 | ||
27d5a87c | 198 | pr_cont("index=%u, name=%.*s, type=%u, audioset=0x%x, " |
59076122 | 199 | "modulator=%u, std=0x%08Lx, capabilities=0x%x\n", |
27d5a87c HV |
200 | p->index, (int)sizeof(p->name), p->name, p->type, p->audioset, |
201 | p->modulator, (unsigned long long)p->std, p->capabilities); | |
59076122 HV |
202 | } |
203 | ||
204 | static void v4l_print_audio(const void *arg, bool write_only) | |
205 | { | |
206 | const struct v4l2_audio *p = arg; | |
207 | ||
208 | if (write_only) | |
209 | pr_cont("index=%u, mode=0x%x\n", p->index, p->mode); | |
210 | else | |
27d5a87c HV |
211 | pr_cont("index=%u, name=%.*s, capability=0x%x, mode=0x%x\n", |
212 | p->index, (int)sizeof(p->name), p->name, | |
213 | p->capability, p->mode); | |
59076122 HV |
214 | } |
215 | ||
216 | static void v4l_print_audioout(const void *arg, bool write_only) | |
217 | { | |
218 | const struct v4l2_audioout *p = arg; | |
219 | ||
220 | if (write_only) | |
221 | pr_cont("index=%u\n", p->index); | |
222 | else | |
27d5a87c HV |
223 | pr_cont("index=%u, name=%.*s, capability=0x%x, mode=0x%x\n", |
224 | p->index, (int)sizeof(p->name), p->name, | |
225 | p->capability, p->mode); | |
59076122 HV |
226 | } |
227 | ||
be6c64e4 HV |
228 | static void v4l_print_fmtdesc(const void *arg, bool write_only) |
229 | { | |
230 | const struct v4l2_fmtdesc *p = arg; | |
231 | ||
27d5a87c | 232 | pr_cont("index=%u, type=%s, flags=0x%x, pixelformat=%c%c%c%c, description='%.*s'\n", |
be6c64e4 HV |
233 | p->index, prt_names(p->type, v4l2_type_names), |
234 | p->flags, (p->pixelformat & 0xff), | |
235 | (p->pixelformat >> 8) & 0xff, | |
236 | (p->pixelformat >> 16) & 0xff, | |
237 | (p->pixelformat >> 24) & 0xff, | |
27d5a87c | 238 | (int)sizeof(p->description), p->description); |
be6c64e4 HV |
239 | } |
240 | ||
241 | static void v4l_print_format(const void *arg, bool write_only) | |
242 | { | |
243 | const struct v4l2_format *p = arg; | |
244 | const struct v4l2_pix_format *pix; | |
245 | const struct v4l2_pix_format_mplane *mp; | |
246 | const struct v4l2_vbi_format *vbi; | |
247 | const struct v4l2_sliced_vbi_format *sliced; | |
248 | const struct v4l2_window *win; | |
87185c95 | 249 | const struct v4l2_sdr_format *sdr; |
be6c64e4 HV |
250 | unsigned i; |
251 | ||
252 | pr_cont("type=%s", prt_names(p->type, v4l2_type_names)); | |
253 | switch (p->type) { | |
254 | case V4L2_BUF_TYPE_VIDEO_CAPTURE: | |
255 | case V4L2_BUF_TYPE_VIDEO_OUTPUT: | |
256 | pix = &p->fmt.pix; | |
257 | pr_cont(", width=%u, height=%u, " | |
258 | "pixelformat=%c%c%c%c, field=%s, " | |
c96fd46a | 259 | "bytesperline=%u, sizeimage=%u, colorspace=%d, " |
1e8faa59 | 260 | "flags=0x%x, ycbcr_enc=%u, quantization=%u\n", |
be6c64e4 HV |
261 | pix->width, pix->height, |
262 | (pix->pixelformat & 0xff), | |
263 | (pix->pixelformat >> 8) & 0xff, | |
264 | (pix->pixelformat >> 16) & 0xff, | |
265 | (pix->pixelformat >> 24) & 0xff, | |
266 | prt_names(pix->field, v4l2_field_names), | |
267 | pix->bytesperline, pix->sizeimage, | |
736d96b5 HV |
268 | pix->colorspace, pix->flags, pix->ycbcr_enc, |
269 | pix->quantization); | |
be6c64e4 HV |
270 | break; |
271 | case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE: | |
272 | case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE: | |
273 | mp = &p->fmt.pix_mp; | |
274 | pr_cont(", width=%u, height=%u, " | |
275 | "format=%c%c%c%c, field=%s, " | |
1e8faa59 | 276 | "colorspace=%d, num_planes=%u, flags=0x%x, " |
736d96b5 | 277 | "ycbcr_enc=%u, quantization=%u\n", |
be6c64e4 HV |
278 | mp->width, mp->height, |
279 | (mp->pixelformat & 0xff), | |
280 | (mp->pixelformat >> 8) & 0xff, | |
281 | (mp->pixelformat >> 16) & 0xff, | |
282 | (mp->pixelformat >> 24) & 0xff, | |
283 | prt_names(mp->field, v4l2_field_names), | |
736d96b5 HV |
284 | mp->colorspace, mp->num_planes, mp->flags, |
285 | mp->ycbcr_enc, mp->quantization); | |
be6c64e4 HV |
286 | for (i = 0; i < mp->num_planes; i++) |
287 | printk(KERN_DEBUG "plane %u: bytesperline=%u sizeimage=%u\n", i, | |
288 | mp->plane_fmt[i].bytesperline, | |
289 | mp->plane_fmt[i].sizeimage); | |
290 | break; | |
291 | case V4L2_BUF_TYPE_VIDEO_OVERLAY: | |
292 | case V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY: | |
293 | win = &p->fmt.win; | |
560dde24 HV |
294 | /* Note: we can't print the clip list here since the clips |
295 | * pointer is a userspace pointer, not a kernelspace | |
296 | * pointer. */ | |
297 | 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", | |
298 | win->w.width, win->w.height, win->w.left, win->w.top, | |
be6c64e4 | 299 | prt_names(win->field, v4l2_field_names), |
560dde24 HV |
300 | win->chromakey, win->clipcount, win->clips, |
301 | win->bitmap, win->global_alpha); | |
be6c64e4 HV |
302 | break; |
303 | case V4L2_BUF_TYPE_VBI_CAPTURE: | |
304 | case V4L2_BUF_TYPE_VBI_OUTPUT: | |
305 | vbi = &p->fmt.vbi; | |
306 | pr_cont(", sampling_rate=%u, offset=%u, samples_per_line=%u, " | |
307 | "sample_format=%c%c%c%c, start=%u,%u, count=%u,%u\n", | |
308 | vbi->sampling_rate, vbi->offset, | |
309 | vbi->samples_per_line, | |
310 | (vbi->sample_format & 0xff), | |
311 | (vbi->sample_format >> 8) & 0xff, | |
312 | (vbi->sample_format >> 16) & 0xff, | |
313 | (vbi->sample_format >> 24) & 0xff, | |
314 | vbi->start[0], vbi->start[1], | |
315 | vbi->count[0], vbi->count[1]); | |
316 | break; | |
317 | case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE: | |
318 | case V4L2_BUF_TYPE_SLICED_VBI_OUTPUT: | |
319 | sliced = &p->fmt.sliced; | |
320 | pr_cont(", service_set=0x%08x, io_size=%d\n", | |
321 | sliced->service_set, sliced->io_size); | |
322 | for (i = 0; i < 24; i++) | |
323 | printk(KERN_DEBUG "line[%02u]=0x%04x, 0x%04x\n", i, | |
324 | sliced->service_lines[0][i], | |
325 | sliced->service_lines[1][i]); | |
326 | break; | |
582c52cb AP |
327 | case V4L2_BUF_TYPE_SDR_CAPTURE: |
328 | sdr = &p->fmt.sdr; | |
329 | pr_cont(", pixelformat=%c%c%c%c\n", | |
330 | (sdr->pixelformat >> 0) & 0xff, | |
331 | (sdr->pixelformat >> 8) & 0xff, | |
332 | (sdr->pixelformat >> 16) & 0xff, | |
333 | (sdr->pixelformat >> 24) & 0xff); | |
334 | break; | |
be6c64e4 HV |
335 | } |
336 | } | |
337 | ||
338 | static void v4l_print_framebuffer(const void *arg, bool write_only) | |
339 | { | |
340 | const struct v4l2_framebuffer *p = arg; | |
341 | ||
342 | pr_cont("capability=0x%x, flags=0x%x, base=0x%p, width=%u, " | |
343 | "height=%u, pixelformat=%c%c%c%c, " | |
560dde24 | 344 | "bytesperline=%u, sizeimage=%u, colorspace=%d\n", |
be6c64e4 HV |
345 | p->capability, p->flags, p->base, |
346 | p->fmt.width, p->fmt.height, | |
347 | (p->fmt.pixelformat & 0xff), | |
348 | (p->fmt.pixelformat >> 8) & 0xff, | |
349 | (p->fmt.pixelformat >> 16) & 0xff, | |
350 | (p->fmt.pixelformat >> 24) & 0xff, | |
351 | p->fmt.bytesperline, p->fmt.sizeimage, | |
352 | p->fmt.colorspace); | |
353 | } | |
354 | ||
e325b244 HV |
355 | static void v4l_print_buftype(const void *arg, bool write_only) |
356 | { | |
357 | pr_cont("type=%s\n", prt_names(*(u32 *)arg, v4l2_type_names)); | |
358 | } | |
359 | ||
4b1e2e4d HV |
360 | static void v4l_print_modulator(const void *arg, bool write_only) |
361 | { | |
362 | const struct v4l2_modulator *p = arg; | |
363 | ||
364 | if (write_only) | |
560dde24 | 365 | pr_cont("index=%u, txsubchans=0x%x\n", p->index, p->txsubchans); |
4b1e2e4d | 366 | else |
27d5a87c | 367 | pr_cont("index=%u, name=%.*s, capability=0x%x, " |
4b1e2e4d | 368 | "rangelow=%u, rangehigh=%u, txsubchans=0x%x\n", |
27d5a87c | 369 | p->index, (int)sizeof(p->name), p->name, p->capability, |
4b1e2e4d HV |
370 | p->rangelow, p->rangehigh, p->txsubchans); |
371 | } | |
372 | ||
373 | static void v4l_print_tuner(const void *arg, bool write_only) | |
374 | { | |
375 | const struct v4l2_tuner *p = arg; | |
376 | ||
377 | if (write_only) | |
378 | pr_cont("index=%u, audmode=%u\n", p->index, p->audmode); | |
379 | else | |
27d5a87c | 380 | pr_cont("index=%u, name=%.*s, type=%u, capability=0x%x, " |
4b1e2e4d HV |
381 | "rangelow=%u, rangehigh=%u, signal=%u, afc=%d, " |
382 | "rxsubchans=0x%x, audmode=%u\n", | |
27d5a87c | 383 | p->index, (int)sizeof(p->name), p->name, p->type, |
4b1e2e4d HV |
384 | p->capability, p->rangelow, |
385 | p->rangehigh, p->signal, p->afc, | |
386 | p->rxsubchans, p->audmode); | |
387 | } | |
388 | ||
389 | static void v4l_print_frequency(const void *arg, bool write_only) | |
390 | { | |
391 | const struct v4l2_frequency *p = arg; | |
392 | ||
393 | pr_cont("tuner=%u, type=%u, frequency=%u\n", | |
394 | p->tuner, p->type, p->frequency); | |
395 | } | |
396 | ||
397 | static void v4l_print_standard(const void *arg, bool write_only) | |
398 | { | |
399 | const struct v4l2_standard *p = arg; | |
400 | ||
27d5a87c | 401 | pr_cont("index=%u, id=0x%Lx, name=%.*s, fps=%u/%u, " |
4b1e2e4d | 402 | "framelines=%u\n", p->index, |
27d5a87c | 403 | (unsigned long long)p->id, (int)sizeof(p->name), p->name, |
4b1e2e4d HV |
404 | p->frameperiod.numerator, |
405 | p->frameperiod.denominator, | |
406 | p->framelines); | |
407 | } | |
408 | ||
409 | static void v4l_print_std(const void *arg, bool write_only) | |
410 | { | |
411 | pr_cont("std=0x%08Lx\n", *(const long long unsigned *)arg); | |
412 | } | |
413 | ||
414 | static void v4l_print_hw_freq_seek(const void *arg, bool write_only) | |
415 | { | |
416 | const struct v4l2_hw_freq_seek *p = arg; | |
417 | ||
5e788317 HV |
418 | pr_cont("tuner=%u, type=%u, seek_upward=%u, wrap_around=%u, spacing=%u, " |
419 | "rangelow=%u, rangehigh=%u\n", | |
420 | p->tuner, p->type, p->seek_upward, p->wrap_around, p->spacing, | |
421 | p->rangelow, p->rangehigh); | |
4b1e2e4d HV |
422 | } |
423 | ||
eb3728ed | 424 | static void v4l_print_requestbuffers(const void *arg, bool write_only) |
59076122 | 425 | { |
eb3728ed HV |
426 | const struct v4l2_requestbuffers *p = arg; |
427 | ||
428 | pr_cont("count=%d, type=%s, memory=%s\n", | |
429 | p->count, | |
430 | prt_names(p->type, v4l2_type_names), | |
431 | prt_names(p->memory, v4l2_memory_names)); | |
59076122 HV |
432 | } |
433 | ||
eb3728ed | 434 | static void v4l_print_buffer(const void *arg, bool write_only) |
35ea11ff | 435 | { |
eb3728ed HV |
436 | const struct v4l2_buffer *p = arg; |
437 | const struct v4l2_timecode *tc = &p->timecode; | |
438 | const struct v4l2_plane *plane; | |
d14e6d76 | 439 | int i; |
35ea11ff | 440 | |
eb3728ed HV |
441 | pr_cont("%02ld:%02d:%02d.%08ld index=%d, type=%s, " |
442 | "flags=0x%08x, field=%s, sequence=%d, memory=%s", | |
35ea11ff HV |
443 | p->timestamp.tv_sec / 3600, |
444 | (int)(p->timestamp.tv_sec / 60) % 60, | |
445 | (int)(p->timestamp.tv_sec % 60), | |
b045979d | 446 | (long)p->timestamp.tv_usec, |
35ea11ff HV |
447 | p->index, |
448 | prt_names(p->type, v4l2_type_names), | |
eb3728ed HV |
449 | p->flags, prt_names(p->field, v4l2_field_names), |
450 | p->sequence, prt_names(p->memory, v4l2_memory_names)); | |
d14e6d76 PO |
451 | |
452 | if (V4L2_TYPE_IS_MULTIPLANAR(p->type) && p->m.planes) { | |
eb3728ed | 453 | pr_cont("\n"); |
d14e6d76 PO |
454 | for (i = 0; i < p->length; ++i) { |
455 | plane = &p->m.planes[i]; | |
eb3728ed | 456 | printk(KERN_DEBUG |
560dde24 | 457 | "plane %d: bytesused=%d, data_offset=0x%08x, " |
eb3728ed | 458 | "offset/userptr=0x%lx, length=%d\n", |
d14e6d76 PO |
459 | i, plane->bytesused, plane->data_offset, |
460 | plane->m.userptr, plane->length); | |
461 | } | |
462 | } else { | |
560dde24 | 463 | pr_cont(", bytesused=%d, offset/userptr=0x%lx, length=%d\n", |
d14e6d76 PO |
464 | p->bytesused, p->m.userptr, p->length); |
465 | } | |
466 | ||
eb3728ed HV |
467 | printk(KERN_DEBUG "timecode=%02d:%02d:%02d type=%d, " |
468 | "flags=0x%08x, frames=%d, userbits=0x%08x\n", | |
35ea11ff HV |
469 | tc->hours, tc->minutes, tc->seconds, |
470 | tc->type, tc->flags, tc->frames, *(__u32 *)tc->userbits); | |
471 | } | |
472 | ||
b799d09a TS |
473 | static void v4l_print_exportbuffer(const void *arg, bool write_only) |
474 | { | |
475 | const struct v4l2_exportbuffer *p = arg; | |
476 | ||
477 | pr_cont("fd=%d, type=%s, index=%u, plane=%u, flags=0x%08x\n", | |
478 | p->fd, prt_names(p->type, v4l2_type_names), | |
479 | p->index, p->plane, p->flags); | |
480 | } | |
481 | ||
eb3728ed HV |
482 | static void v4l_print_create_buffers(const void *arg, bool write_only) |
483 | { | |
484 | const struct v4l2_create_buffers *p = arg; | |
485 | ||
486 | pr_cont("index=%d, count=%d, memory=%s, ", | |
487 | p->index, p->count, | |
488 | prt_names(p->memory, v4l2_memory_names)); | |
489 | v4l_print_format(&p->format, write_only); | |
490 | } | |
491 | ||
492 | static void v4l_print_streamparm(const void *arg, bool write_only) | |
493 | { | |
494 | const struct v4l2_streamparm *p = arg; | |
495 | ||
496 | pr_cont("type=%s", prt_names(p->type, v4l2_type_names)); | |
497 | ||
498 | if (p->type == V4L2_BUF_TYPE_VIDEO_CAPTURE || | |
499 | p->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) { | |
500 | const struct v4l2_captureparm *c = &p->parm.capture; | |
501 | ||
502 | pr_cont(", capability=0x%x, capturemode=0x%x, timeperframe=%d/%d, " | |
503 | "extendedmode=%d, readbuffers=%d\n", | |
504 | c->capability, c->capturemode, | |
505 | c->timeperframe.numerator, c->timeperframe.denominator, | |
506 | c->extendedmode, c->readbuffers); | |
507 | } else if (p->type == V4L2_BUF_TYPE_VIDEO_OUTPUT || | |
508 | p->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) { | |
509 | const struct v4l2_outputparm *c = &p->parm.output; | |
510 | ||
511 | pr_cont(", capability=0x%x, outputmode=0x%x, timeperframe=%d/%d, " | |
512 | "extendedmode=%d, writebuffers=%d\n", | |
513 | c->capability, c->outputmode, | |
514 | c->timeperframe.numerator, c->timeperframe.denominator, | |
515 | c->extendedmode, c->writebuffers); | |
560dde24 HV |
516 | } else { |
517 | pr_cont("\n"); | |
eb3728ed HV |
518 | } |
519 | } | |
520 | ||
efbceecd HV |
521 | static void v4l_print_queryctrl(const void *arg, bool write_only) |
522 | { | |
523 | const struct v4l2_queryctrl *p = arg; | |
524 | ||
27d5a87c | 525 | pr_cont("id=0x%x, type=%d, name=%.*s, min/max=%d/%d, " |
efbceecd | 526 | "step=%d, default=%d, flags=0x%08x\n", |
27d5a87c | 527 | p->id, p->type, (int)sizeof(p->name), p->name, |
efbceecd HV |
528 | p->minimum, p->maximum, |
529 | p->step, p->default_value, p->flags); | |
530 | } | |
531 | ||
e6bee368 HV |
532 | static void v4l_print_query_ext_ctrl(const void *arg, bool write_only) |
533 | { | |
534 | const struct v4l2_query_ext_ctrl *p = arg; | |
535 | ||
536 | pr_cont("id=0x%x, type=%d, name=%.*s, min/max=%lld/%lld, " | |
537 | "step=%lld, default=%lld, flags=0x%08x, elem_size=%u, elems=%u, " | |
0176077a | 538 | "nr_of_dims=%u, dims=%u,%u,%u,%u\n", |
e6bee368 HV |
539 | p->id, p->type, (int)sizeof(p->name), p->name, |
540 | p->minimum, p->maximum, | |
541 | p->step, p->default_value, p->flags, | |
542 | p->elem_size, p->elems, p->nr_of_dims, | |
0176077a | 543 | p->dims[0], p->dims[1], p->dims[2], p->dims[3]); |
e6bee368 HV |
544 | } |
545 | ||
efbceecd HV |
546 | static void v4l_print_querymenu(const void *arg, bool write_only) |
547 | { | |
548 | const struct v4l2_querymenu *p = arg; | |
549 | ||
550 | pr_cont("id=0x%x, index=%d\n", p->id, p->index); | |
551 | } | |
552 | ||
553 | static void v4l_print_control(const void *arg, bool write_only) | |
554 | { | |
555 | const struct v4l2_control *p = arg; | |
556 | ||
557 | pr_cont("id=0x%x, value=%d\n", p->id, p->value); | |
558 | } | |
559 | ||
560 | static void v4l_print_ext_controls(const void *arg, bool write_only) | |
561 | { | |
562 | const struct v4l2_ext_controls *p = arg; | |
563 | int i; | |
564 | ||
565 | pr_cont("class=0x%x, count=%d, error_idx=%d", | |
566 | p->ctrl_class, p->count, p->error_idx); | |
567 | for (i = 0; i < p->count; i++) { | |
017ab36a | 568 | if (!p->controls[i].size) |
efbceecd HV |
569 | pr_cont(", id/val=0x%x/0x%x", |
570 | p->controls[i].id, p->controls[i].value); | |
571 | else | |
572 | pr_cont(", id/size=0x%x/%u", | |
573 | p->controls[i].id, p->controls[i].size); | |
574 | } | |
575 | pr_cont("\n"); | |
576 | } | |
577 | ||
d84f2d94 | 578 | static void v4l_print_cropcap(const void *arg, bool write_only) |
eb3728ed | 579 | { |
d84f2d94 HV |
580 | const struct v4l2_cropcap *p = arg; |
581 | ||
582 | pr_cont("type=%s, bounds wxh=%dx%d, x,y=%d,%d, " | |
a112fbaf | 583 | "defrect wxh=%dx%d, x,y=%d,%d, " |
d84f2d94 HV |
584 | "pixelaspect %d/%d\n", |
585 | prt_names(p->type, v4l2_type_names), | |
586 | p->bounds.width, p->bounds.height, | |
587 | p->bounds.left, p->bounds.top, | |
588 | p->defrect.width, p->defrect.height, | |
589 | p->defrect.left, p->defrect.top, | |
590 | p->pixelaspect.numerator, p->pixelaspect.denominator); | |
eb3728ed HV |
591 | } |
592 | ||
d84f2d94 | 593 | static void v4l_print_crop(const void *arg, bool write_only) |
35ea11ff | 594 | { |
d84f2d94 HV |
595 | const struct v4l2_crop *p = arg; |
596 | ||
597 | pr_cont("type=%s, wxh=%dx%d, x,y=%d,%d\n", | |
598 | prt_names(p->type, v4l2_type_names), | |
599 | p->c.width, p->c.height, | |
600 | p->c.left, p->c.top); | |
601 | } | |
602 | ||
603 | static void v4l_print_selection(const void *arg, bool write_only) | |
604 | { | |
605 | const struct v4l2_selection *p = arg; | |
606 | ||
607 | pr_cont("type=%s, target=%d, flags=0x%x, wxh=%dx%d, x,y=%d,%d\n", | |
608 | prt_names(p->type, v4l2_type_names), | |
609 | p->target, p->flags, | |
610 | p->r.width, p->r.height, p->r.left, p->r.top); | |
611 | } | |
612 | ||
d806f2df HV |
613 | static void v4l_print_jpegcompression(const void *arg, bool write_only) |
614 | { | |
615 | const struct v4l2_jpegcompression *p = arg; | |
616 | ||
617 | pr_cont("quality=%d, APPn=%d, APP_len=%d, " | |
618 | "COM_len=%d, jpeg_markers=0x%x\n", | |
619 | p->quality, p->APPn, p->APP_len, | |
620 | p->COM_len, p->jpeg_markers); | |
621 | } | |
622 | ||
623 | static void v4l_print_enc_idx(const void *arg, bool write_only) | |
624 | { | |
625 | const struct v4l2_enc_idx *p = arg; | |
626 | ||
627 | pr_cont("entries=%d, entries_cap=%d\n", | |
628 | p->entries, p->entries_cap); | |
629 | } | |
630 | ||
631 | static void v4l_print_encoder_cmd(const void *arg, bool write_only) | |
632 | { | |
633 | const struct v4l2_encoder_cmd *p = arg; | |
634 | ||
635 | pr_cont("cmd=%d, flags=0x%x\n", | |
636 | p->cmd, p->flags); | |
637 | } | |
638 | ||
639 | static void v4l_print_decoder_cmd(const void *arg, bool write_only) | |
640 | { | |
641 | const struct v4l2_decoder_cmd *p = arg; | |
642 | ||
643 | pr_cont("cmd=%d, flags=0x%x\n", p->cmd, p->flags); | |
644 | ||
645 | if (p->cmd == V4L2_DEC_CMD_START) | |
646 | pr_info("speed=%d, format=%u\n", | |
647 | p->start.speed, p->start.format); | |
648 | else if (p->cmd == V4L2_DEC_CMD_STOP) | |
649 | pr_info("pts=%llu\n", p->stop.pts); | |
650 | } | |
651 | ||
96b03d2a | 652 | static void v4l_print_dbg_chip_info(const void *arg, bool write_only) |
79b0c640 | 653 | { |
96b03d2a | 654 | const struct v4l2_dbg_chip_info *p = arg; |
79b0c640 HV |
655 | |
656 | pr_cont("type=%u, ", p->match.type); | |
3eef2510 | 657 | if (p->match.type == V4L2_CHIP_MATCH_I2C_DRIVER) |
79b0c640 HV |
658 | pr_cont("name=%.*s, ", |
659 | (int)sizeof(p->match.name), p->match.name); | |
660 | else | |
661 | pr_cont("addr=%u, ", p->match.addr); | |
662 | pr_cont("name=%.*s\n", (int)sizeof(p->name), p->name); | |
663 | } | |
664 | ||
f16f77b0 HV |
665 | static void v4l_print_dbg_register(const void *arg, bool write_only) |
666 | { | |
667 | const struct v4l2_dbg_register *p = arg; | |
668 | ||
669 | pr_cont("type=%u, ", p->match.type); | |
3eef2510 | 670 | if (p->match.type == V4L2_CHIP_MATCH_I2C_DRIVER) |
27d5a87c HV |
671 | pr_cont("name=%.*s, ", |
672 | (int)sizeof(p->match.name), p->match.name); | |
f16f77b0 HV |
673 | else |
674 | pr_cont("addr=%u, ", p->match.addr); | |
675 | pr_cont("reg=0x%llx, val=0x%llx\n", | |
676 | p->reg, p->val); | |
677 | } | |
678 | ||
efc626b0 | 679 | static void v4l_print_dv_timings(const void *arg, bool write_only) |
5d7758ee | 680 | { |
efc626b0 HV |
681 | const struct v4l2_dv_timings *p = arg; |
682 | ||
5d7758ee HV |
683 | switch (p->type) { |
684 | case V4L2_DV_BT_656_1120: | |
efc626b0 HV |
685 | pr_cont("type=bt-656/1120, interlaced=%u, " |
686 | "pixelclock=%llu, " | |
687 | "width=%u, height=%u, polarities=0x%x, " | |
688 | "hfrontporch=%u, hsync=%u, " | |
689 | "hbackporch=%u, vfrontporch=%u, " | |
690 | "vsync=%u, vbackporch=%u, " | |
691 | "il_vfrontporch=%u, il_vsync=%u, " | |
692 | "il_vbackporch=%u, standards=0x%x, flags=0x%x\n", | |
5d7758ee HV |
693 | p->bt.interlaced, p->bt.pixelclock, |
694 | p->bt.width, p->bt.height, | |
695 | p->bt.polarities, p->bt.hfrontporch, | |
696 | p->bt.hsync, p->bt.hbackporch, | |
697 | p->bt.vfrontporch, p->bt.vsync, | |
698 | p->bt.vbackporch, p->bt.il_vfrontporch, | |
699 | p->bt.il_vsync, p->bt.il_vbackporch, | |
700 | p->bt.standards, p->bt.flags); | |
701 | break; | |
702 | default: | |
efc626b0 | 703 | pr_cont("type=%d\n", p->type); |
5d7758ee HV |
704 | break; |
705 | } | |
706 | } | |
707 | ||
efc626b0 HV |
708 | static void v4l_print_enum_dv_timings(const void *arg, bool write_only) |
709 | { | |
710 | const struct v4l2_enum_dv_timings *p = arg; | |
711 | ||
712 | pr_cont("index=%u, ", p->index); | |
713 | v4l_print_dv_timings(&p->timings, write_only); | |
714 | } | |
715 | ||
716 | static void v4l_print_dv_timings_cap(const void *arg, bool write_only) | |
717 | { | |
718 | const struct v4l2_dv_timings_cap *p = arg; | |
719 | ||
720 | switch (p->type) { | |
721 | case V4L2_DV_BT_656_1120: | |
722 | pr_cont("type=bt-656/1120, width=%u-%u, height=%u-%u, " | |
723 | "pixelclock=%llu-%llu, standards=0x%x, capabilities=0x%x\n", | |
724 | p->bt.min_width, p->bt.max_width, | |
725 | p->bt.min_height, p->bt.max_height, | |
726 | p->bt.min_pixelclock, p->bt.max_pixelclock, | |
727 | p->bt.standards, p->bt.capabilities); | |
728 | break; | |
729 | default: | |
730 | pr_cont("type=%u\n", p->type); | |
731 | break; | |
732 | } | |
733 | } | |
734 | ||
458aa4a6 HV |
735 | static void v4l_print_frmsizeenum(const void *arg, bool write_only) |
736 | { | |
737 | const struct v4l2_frmsizeenum *p = arg; | |
738 | ||
739 | pr_cont("index=%u, pixelformat=%c%c%c%c, type=%u", | |
740 | p->index, | |
741 | (p->pixel_format & 0xff), | |
742 | (p->pixel_format >> 8) & 0xff, | |
743 | (p->pixel_format >> 16) & 0xff, | |
744 | (p->pixel_format >> 24) & 0xff, | |
745 | p->type); | |
746 | switch (p->type) { | |
747 | case V4L2_FRMSIZE_TYPE_DISCRETE: | |
560dde24 | 748 | pr_cont(", wxh=%ux%u\n", |
458aa4a6 HV |
749 | p->discrete.width, p->discrete.height); |
750 | break; | |
751 | case V4L2_FRMSIZE_TYPE_STEPWISE: | |
560dde24 | 752 | pr_cont(", min=%ux%u, max=%ux%u, step=%ux%u\n", |
458aa4a6 HV |
753 | p->stepwise.min_width, p->stepwise.min_height, |
754 | p->stepwise.step_width, p->stepwise.step_height, | |
755 | p->stepwise.max_width, p->stepwise.max_height); | |
756 | break; | |
757 | case V4L2_FRMSIZE_TYPE_CONTINUOUS: | |
758 | /* fall through */ | |
759 | default: | |
760 | pr_cont("\n"); | |
761 | break; | |
762 | } | |
763 | } | |
764 | ||
765 | static void v4l_print_frmivalenum(const void *arg, bool write_only) | |
766 | { | |
767 | const struct v4l2_frmivalenum *p = arg; | |
768 | ||
769 | pr_cont("index=%u, pixelformat=%c%c%c%c, wxh=%ux%u, type=%u", | |
770 | p->index, | |
771 | (p->pixel_format & 0xff), | |
772 | (p->pixel_format >> 8) & 0xff, | |
773 | (p->pixel_format >> 16) & 0xff, | |
774 | (p->pixel_format >> 24) & 0xff, | |
775 | p->width, p->height, p->type); | |
776 | switch (p->type) { | |
777 | case V4L2_FRMIVAL_TYPE_DISCRETE: | |
560dde24 | 778 | pr_cont(", fps=%d/%d\n", |
458aa4a6 HV |
779 | p->discrete.numerator, |
780 | p->discrete.denominator); | |
781 | break; | |
782 | case V4L2_FRMIVAL_TYPE_STEPWISE: | |
560dde24 | 783 | pr_cont(", min=%d/%d, max=%d/%d, step=%d/%d\n", |
458aa4a6 HV |
784 | p->stepwise.min.numerator, |
785 | p->stepwise.min.denominator, | |
786 | p->stepwise.max.numerator, | |
787 | p->stepwise.max.denominator, | |
788 | p->stepwise.step.numerator, | |
789 | p->stepwise.step.denominator); | |
790 | break; | |
791 | case V4L2_FRMIVAL_TYPE_CONTINUOUS: | |
792 | /* fall through */ | |
793 | default: | |
794 | pr_cont("\n"); | |
795 | break; | |
796 | } | |
797 | } | |
798 | ||
799 | static void v4l_print_event(const void *arg, bool write_only) | |
800 | { | |
801 | const struct v4l2_event *p = arg; | |
802 | const struct v4l2_event_ctrl *c; | |
803 | ||
804 | pr_cont("type=0x%x, pending=%u, sequence=%u, id=%u, " | |
805 | "timestamp=%lu.%9.9lu\n", | |
806 | p->type, p->pending, p->sequence, p->id, | |
807 | p->timestamp.tv_sec, p->timestamp.tv_nsec); | |
808 | switch (p->type) { | |
809 | case V4L2_EVENT_VSYNC: | |
810 | printk(KERN_DEBUG "field=%s\n", | |
811 | prt_names(p->u.vsync.field, v4l2_field_names)); | |
812 | break; | |
813 | case V4L2_EVENT_CTRL: | |
814 | c = &p->u.ctrl; | |
815 | printk(KERN_DEBUG "changes=0x%x, type=%u, ", | |
816 | c->changes, c->type); | |
817 | if (c->type == V4L2_CTRL_TYPE_INTEGER64) | |
818 | pr_cont("value64=%lld, ", c->value64); | |
819 | else | |
820 | pr_cont("value=%d, ", c->value); | |
560dde24 HV |
821 | pr_cont("flags=0x%x, minimum=%d, maximum=%d, step=%d, " |
822 | "default_value=%d\n", | |
458aa4a6 HV |
823 | c->flags, c->minimum, c->maximum, |
824 | c->step, c->default_value); | |
825 | break; | |
826 | case V4L2_EVENT_FRAME_SYNC: | |
827 | pr_cont("frame_sequence=%u\n", | |
828 | p->u.frame_sync.frame_sequence); | |
829 | break; | |
830 | } | |
831 | } | |
832 | ||
833 | static void v4l_print_event_subscription(const void *arg, bool write_only) | |
834 | { | |
835 | const struct v4l2_event_subscription *p = arg; | |
836 | ||
837 | pr_cont("type=0x%x, id=0x%x, flags=0x%x\n", | |
838 | p->type, p->id, p->flags); | |
839 | } | |
840 | ||
841 | static void v4l_print_sliced_vbi_cap(const void *arg, bool write_only) | |
842 | { | |
843 | const struct v4l2_sliced_vbi_cap *p = arg; | |
844 | int i; | |
845 | ||
846 | pr_cont("type=%s, service_set=0x%08x\n", | |
847 | prt_names(p->type, v4l2_type_names), p->service_set); | |
848 | for (i = 0; i < 24; i++) | |
849 | printk(KERN_DEBUG "line[%02u]=0x%04x, 0x%04x\n", i, | |
850 | p->service_lines[0][i], | |
851 | p->service_lines[1][i]); | |
852 | } | |
853 | ||
82b655bf HV |
854 | static void v4l_print_freq_band(const void *arg, bool write_only) |
855 | { | |
856 | const struct v4l2_frequency_band *p = arg; | |
857 | ||
858 | pr_cont("tuner=%u, type=%u, index=%u, capability=0x%x, " | |
560dde24 | 859 | "rangelow=%u, rangehigh=%u, modulation=0x%x\n", |
82b655bf HV |
860 | p->tuner, p->type, p->index, |
861 | p->capability, p->rangelow, | |
862 | p->rangehigh, p->modulation); | |
863 | } | |
864 | ||
dd519bb3 HV |
865 | static void v4l_print_edid(const void *arg, bool write_only) |
866 | { | |
867 | const struct v4l2_edid *p = arg; | |
868 | ||
869 | pr_cont("pad=%u, start_block=%u, blocks=%u\n", | |
870 | p->pad, p->start_block, p->blocks); | |
871 | } | |
872 | ||
efc626b0 HV |
873 | static void v4l_print_u32(const void *arg, bool write_only) |
874 | { | |
875 | pr_cont("value=%u\n", *(const u32 *)arg); | |
876 | } | |
877 | ||
878 | static void v4l_print_newline(const void *arg, bool write_only) | |
879 | { | |
880 | pr_cont("\n"); | |
881 | } | |
882 | ||
f18d8e07 HV |
883 | static void v4l_print_default(const void *arg, bool write_only) |
884 | { | |
885 | pr_cont("driver-specific ioctl\n"); | |
886 | } | |
887 | ||
efbceecd | 888 | static int check_ext_ctrls(struct v4l2_ext_controls *c, int allow_priv) |
35ea11ff HV |
889 | { |
890 | __u32 i; | |
891 | ||
892 | /* zero the reserved fields */ | |
893 | c->reserved[0] = c->reserved[1] = 0; | |
6b5a9492 | 894 | for (i = 0; i < c->count; i++) |
35ea11ff | 895 | c->controls[i].reserved2[0] = 0; |
6b5a9492 | 896 | |
35ea11ff HV |
897 | /* V4L2_CID_PRIVATE_BASE cannot be used as control class |
898 | when using extended controls. | |
899 | Only when passed in through VIDIOC_G_CTRL and VIDIOC_S_CTRL | |
900 | is it allowed for backwards compatibility. | |
901 | */ | |
902 | if (!allow_priv && c->ctrl_class == V4L2_CID_PRIVATE_BASE) | |
903 | return 0; | |
9b239b22 HV |
904 | if (c->ctrl_class == 0) |
905 | return 1; | |
35ea11ff HV |
906 | /* Check that all controls are from the same control class. */ |
907 | for (i = 0; i < c->count; i++) { | |
908 | if (V4L2_CTRL_ID2CLASS(c->controls[i].id) != c->ctrl_class) { | |
909 | c->error_idx = i; | |
910 | return 0; | |
911 | } | |
912 | } | |
913 | return 1; | |
914 | } | |
915 | ||
4b20259f | 916 | static int check_fmt(struct file *file, enum v4l2_buf_type type) |
35ea11ff | 917 | { |
4b20259f HV |
918 | struct video_device *vfd = video_devdata(file); |
919 | const struct v4l2_ioctl_ops *ops = vfd->ioctl_ops; | |
920 | bool is_vid = vfd->vfl_type == VFL_TYPE_GRABBER; | |
921 | bool is_vbi = vfd->vfl_type == VFL_TYPE_VBI; | |
582c52cb | 922 | bool is_sdr = vfd->vfl_type == VFL_TYPE_SDR; |
4b20259f HV |
923 | bool is_rx = vfd->vfl_dir != VFL_DIR_TX; |
924 | bool is_tx = vfd->vfl_dir != VFL_DIR_RX; | |
925 | ||
a399810c HV |
926 | if (ops == NULL) |
927 | return -EINVAL; | |
928 | ||
35ea11ff HV |
929 | switch (type) { |
930 | case V4L2_BUF_TYPE_VIDEO_CAPTURE: | |
4b20259f HV |
931 | if (is_vid && is_rx && |
932 | (ops->vidioc_g_fmt_vid_cap || ops->vidioc_g_fmt_vid_cap_mplane)) | |
d14e6d76 PO |
933 | return 0; |
934 | break; | |
935 | case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE: | |
4b20259f | 936 | if (is_vid && is_rx && ops->vidioc_g_fmt_vid_cap_mplane) |
35ea11ff HV |
937 | return 0; |
938 | break; | |
939 | case V4L2_BUF_TYPE_VIDEO_OVERLAY: | |
4b20259f | 940 | if (is_vid && is_rx && ops->vidioc_g_fmt_vid_overlay) |
35ea11ff HV |
941 | return 0; |
942 | break; | |
943 | case V4L2_BUF_TYPE_VIDEO_OUTPUT: | |
4b20259f HV |
944 | if (is_vid && is_tx && |
945 | (ops->vidioc_g_fmt_vid_out || ops->vidioc_g_fmt_vid_out_mplane)) | |
d14e6d76 PO |
946 | return 0; |
947 | break; | |
948 | case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE: | |
4b20259f | 949 | if (is_vid && is_tx && ops->vidioc_g_fmt_vid_out_mplane) |
35ea11ff HV |
950 | return 0; |
951 | break; | |
952 | case V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY: | |
4b20259f | 953 | if (is_vid && is_tx && ops->vidioc_g_fmt_vid_out_overlay) |
35ea11ff HV |
954 | return 0; |
955 | break; | |
956 | case V4L2_BUF_TYPE_VBI_CAPTURE: | |
4b20259f | 957 | if (is_vbi && is_rx && ops->vidioc_g_fmt_vbi_cap) |
35ea11ff HV |
958 | return 0; |
959 | break; | |
960 | case V4L2_BUF_TYPE_VBI_OUTPUT: | |
4b20259f | 961 | if (is_vbi && is_tx && ops->vidioc_g_fmt_vbi_out) |
35ea11ff HV |
962 | return 0; |
963 | break; | |
964 | case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE: | |
4b20259f | 965 | if (is_vbi && is_rx && ops->vidioc_g_fmt_sliced_vbi_cap) |
35ea11ff HV |
966 | return 0; |
967 | break; | |
968 | case V4L2_BUF_TYPE_SLICED_VBI_OUTPUT: | |
4b20259f | 969 | if (is_vbi && is_tx && ops->vidioc_g_fmt_sliced_vbi_out) |
35ea11ff HV |
970 | return 0; |
971 | break; | |
582c52cb AP |
972 | case V4L2_BUF_TYPE_SDR_CAPTURE: |
973 | if (is_sdr && is_rx && ops->vidioc_g_fmt_sdr_cap) | |
974 | return 0; | |
975 | break; | |
633c98e5 | 976 | default: |
35ea11ff HV |
977 | break; |
978 | } | |
979 | return -EINVAL; | |
980 | } | |
981 | ||
d52e2381 LP |
982 | static void v4l_sanitize_format(struct v4l2_format *fmt) |
983 | { | |
984 | unsigned int offset; | |
985 | ||
986 | /* | |
987 | * The v4l2_pix_format structure has been extended with fields that were | |
988 | * not previously required to be set to zero by applications. The priv | |
989 | * field, when set to a magic value, indicates the the extended fields | |
990 | * are valid. Otherwise they will contain undefined values. To simplify | |
991 | * the API towards drivers zero the extended fields and set the priv | |
992 | * field to the magic value when the extended pixel format structure | |
993 | * isn't used by applications. | |
994 | */ | |
995 | ||
996 | if (fmt->type != V4L2_BUF_TYPE_VIDEO_CAPTURE && | |
997 | fmt->type != V4L2_BUF_TYPE_VIDEO_OUTPUT) | |
998 | return; | |
999 | ||
1000 | if (fmt->fmt.pix.priv == V4L2_PIX_FMT_PRIV_MAGIC) | |
1001 | return; | |
1002 | ||
1003 | fmt->fmt.pix.priv = V4L2_PIX_FMT_PRIV_MAGIC; | |
1004 | ||
1005 | offset = offsetof(struct v4l2_pix_format, priv) | |
1006 | + sizeof(fmt->fmt.pix.priv); | |
1007 | memset(((void *)&fmt->fmt.pix) + offset, 0, | |
1008 | sizeof(fmt->fmt.pix) - offset); | |
1009 | } | |
1010 | ||
59076122 HV |
1011 | static int v4l_querycap(const struct v4l2_ioctl_ops *ops, |
1012 | struct file *file, void *fh, void *arg) | |
1013 | { | |
1014 | struct v4l2_capability *cap = (struct v4l2_capability *)arg; | |
d52e2381 | 1015 | int ret; |
59076122 HV |
1016 | |
1017 | cap->version = LINUX_VERSION_CODE; | |
d52e2381 LP |
1018 | |
1019 | ret = ops->vidioc_querycap(file, fh, cap); | |
1020 | ||
1021 | cap->capabilities |= V4L2_CAP_EXT_PIX_FORMAT; | |
454a4e72 HV |
1022 | /* |
1023 | * Drivers MUST fill in device_caps, so check for this and | |
1024 | * warn if it was forgotten. | |
1025 | */ | |
1026 | WARN_ON(!(cap->capabilities & V4L2_CAP_DEVICE_CAPS) || | |
1027 | !cap->device_caps); | |
796a2bd2 | 1028 | cap->device_caps |= V4L2_CAP_EXT_PIX_FORMAT; |
d52e2381 LP |
1029 | |
1030 | return ret; | |
59076122 HV |
1031 | } |
1032 | ||
1033 | static int v4l_s_input(const struct v4l2_ioctl_ops *ops, | |
1034 | struct file *file, void *fh, void *arg) | |
1035 | { | |
1036 | return ops->vidioc_s_input(file, fh, *(unsigned int *)arg); | |
1037 | } | |
1038 | ||
1039 | static int v4l_s_output(const struct v4l2_ioctl_ops *ops, | |
1040 | struct file *file, void *fh, void *arg) | |
1041 | { | |
1042 | return ops->vidioc_s_output(file, fh, *(unsigned int *)arg); | |
1043 | } | |
1044 | ||
d0547cba HV |
1045 | static int v4l_g_priority(const struct v4l2_ioctl_ops *ops, |
1046 | struct file *file, void *fh, void *arg) | |
1047 | { | |
1048 | struct video_device *vfd; | |
1049 | u32 *p = arg; | |
1050 | ||
d0547cba | 1051 | vfd = video_devdata(file); |
59b702ea | 1052 | *p = v4l2_prio_max(vfd->prio); |
d0547cba HV |
1053 | return 0; |
1054 | } | |
1055 | ||
1056 | static int v4l_s_priority(const struct v4l2_ioctl_ops *ops, | |
1057 | struct file *file, void *fh, void *arg) | |
1058 | { | |
1059 | struct video_device *vfd; | |
1060 | struct v4l2_fh *vfh; | |
1061 | u32 *p = arg; | |
1062 | ||
d0547cba | 1063 | vfd = video_devdata(file); |
2438e78a HV |
1064 | if (!test_bit(V4L2_FL_USES_V4L2_FH, &vfd->flags)) |
1065 | return -ENOTTY; | |
d0547cba | 1066 | vfh = file->private_data; |
59b702ea | 1067 | return v4l2_prio_change(vfd->prio, &vfh->prio, *p); |
d0547cba HV |
1068 | } |
1069 | ||
59076122 HV |
1070 | static int v4l_enuminput(const struct v4l2_ioctl_ops *ops, |
1071 | struct file *file, void *fh, void *arg) | |
1072 | { | |
73f35418 | 1073 | struct video_device *vfd = video_devdata(file); |
59076122 HV |
1074 | struct v4l2_input *p = arg; |
1075 | ||
1076 | /* | |
02fa6282 | 1077 | * We set the flags for CAP_DV_TIMINGS & |
59076122 HV |
1078 | * CAP_STD here based on ioctl handler provided by the |
1079 | * driver. If the driver doesn't support these | |
1080 | * for a specific input, it must override these flags. | |
1081 | */ | |
73f35418 | 1082 | if (is_valid_ioctl(vfd, VIDIOC_S_STD)) |
59076122 | 1083 | p->capabilities |= V4L2_IN_CAP_STD; |
59076122 HV |
1084 | |
1085 | return ops->vidioc_enum_input(file, fh, p); | |
1086 | } | |
1087 | ||
1088 | static int v4l_enumoutput(const struct v4l2_ioctl_ops *ops, | |
1089 | struct file *file, void *fh, void *arg) | |
1090 | { | |
73f35418 | 1091 | struct video_device *vfd = video_devdata(file); |
59076122 HV |
1092 | struct v4l2_output *p = arg; |
1093 | ||
1094 | /* | |
02fa6282 | 1095 | * We set the flags for CAP_DV_TIMINGS & |
59076122 HV |
1096 | * CAP_STD here based on ioctl handler provided by the |
1097 | * driver. If the driver doesn't support these | |
1098 | * for a specific output, it must override these flags. | |
1099 | */ | |
73f35418 | 1100 | if (is_valid_ioctl(vfd, VIDIOC_S_STD)) |
59076122 | 1101 | p->capabilities |= V4L2_OUT_CAP_STD; |
59076122 HV |
1102 | |
1103 | return ops->vidioc_enum_output(file, fh, p); | |
1104 | } | |
1105 | ||
ba300204 HV |
1106 | static void v4l_fill_fmtdesc(struct v4l2_fmtdesc *fmt) |
1107 | { | |
1108 | const unsigned sz = sizeof(fmt->description); | |
1109 | const char *descr = NULL; | |
1110 | u32 flags = 0; | |
1111 | ||
1112 | /* | |
1113 | * We depart from the normal coding style here since the descriptions | |
1114 | * should be aligned so it is easy to see which descriptions will be | |
1115 | * longer than 31 characters (the max length for a description). | |
1116 | * And frankly, this is easier to read anyway. | |
1117 | * | |
1118 | * Note that gcc will use O(log N) comparisons to find the right case. | |
1119 | */ | |
1120 | switch (fmt->pixelformat) { | |
1121 | /* Max description length mask: descr = "0123456789012345678901234567890" */ | |
1122 | case V4L2_PIX_FMT_RGB332: descr = "8-bit RGB 3-3-2"; break; | |
1123 | case V4L2_PIX_FMT_RGB444: descr = "16-bit A/XRGB 4-4-4-4"; break; | |
1124 | case V4L2_PIX_FMT_ARGB444: descr = "16-bit ARGB 4-4-4-4"; break; | |
1125 | case V4L2_PIX_FMT_XRGB444: descr = "16-bit XRGB 4-4-4-4"; break; | |
1126 | case V4L2_PIX_FMT_RGB555: descr = "16-bit A/XRGB 1-5-5-5"; break; | |
1127 | case V4L2_PIX_FMT_ARGB555: descr = "16-bit ARGB 1-5-5-5"; break; | |
1128 | case V4L2_PIX_FMT_XRGB555: descr = "16-bit XRGB 1-5-5-5"; break; | |
1129 | case V4L2_PIX_FMT_RGB565: descr = "16-bit RGB 5-6-5"; break; | |
1130 | case V4L2_PIX_FMT_RGB555X: descr = "16-bit A/XRGB 1-5-5-5 BE"; break; | |
1131 | case V4L2_PIX_FMT_ARGB555X: descr = "16-bit ARGB 1-5-5-5 BE"; break; | |
1132 | case V4L2_PIX_FMT_XRGB555X: descr = "16-bit XRGB 1-5-5-5 BE"; break; | |
1133 | case V4L2_PIX_FMT_RGB565X: descr = "16-bit RGB 5-6-5 BE"; break; | |
1134 | case V4L2_PIX_FMT_BGR666: descr = "18-bit BGRX 6-6-6-14"; break; | |
1135 | case V4L2_PIX_FMT_BGR24: descr = "24-bit BGR 8-8-8"; break; | |
1136 | case V4L2_PIX_FMT_RGB24: descr = "24-bit RGB 8-8-8"; break; | |
1137 | case V4L2_PIX_FMT_BGR32: descr = "32-bit BGRA/X 8-8-8-8"; break; | |
1138 | case V4L2_PIX_FMT_ABGR32: descr = "32-bit BGRA 8-8-8-8"; break; | |
1139 | case V4L2_PIX_FMT_XBGR32: descr = "32-bit BGRX 8-8-8-8"; break; | |
1140 | case V4L2_PIX_FMT_RGB32: descr = "32-bit A/XRGB 8-8-8-8"; break; | |
1141 | case V4L2_PIX_FMT_ARGB32: descr = "32-bit ARGB 8-8-8-8"; break; | |
1142 | case V4L2_PIX_FMT_XRGB32: descr = "32-bit XRGB 8-8-8-8"; break; | |
1143 | case V4L2_PIX_FMT_GREY: descr = "8-bit Greyscale"; break; | |
1144 | case V4L2_PIX_FMT_Y4: descr = "4-bit Greyscale"; break; | |
1145 | case V4L2_PIX_FMT_Y6: descr = "6-bit Greyscale"; break; | |
1146 | case V4L2_PIX_FMT_Y10: descr = "10-bit Greyscale"; break; | |
1147 | case V4L2_PIX_FMT_Y12: descr = "12-bit Greyscale"; break; | |
1148 | case V4L2_PIX_FMT_Y16: descr = "16-bit Greyscale"; break; | |
1149 | case V4L2_PIX_FMT_Y10BPACK: descr = "10-bit Greyscale (Packed)"; break; | |
1150 | case V4L2_PIX_FMT_PAL8: descr = "8-bit Palette"; break; | |
1151 | case V4L2_PIX_FMT_UV8: descr = "8-bit Chrominance UV 4-4"; break; | |
1152 | case V4L2_PIX_FMT_YVU410: descr = "Planar YVU 4:1:0"; break; | |
1153 | case V4L2_PIX_FMT_YVU420: descr = "Planar YVU 4:2:0"; break; | |
1154 | case V4L2_PIX_FMT_YUYV: descr = "YUYV 4:2:2"; break; | |
1155 | case V4L2_PIX_FMT_YYUV: descr = "YYUV 4:2:2"; break; | |
1156 | case V4L2_PIX_FMT_YVYU: descr = "YVYU 4:2:2"; break; | |
1157 | case V4L2_PIX_FMT_UYVY: descr = "UYVY 4:2:2"; break; | |
1158 | case V4L2_PIX_FMT_VYUY: descr = "VYUY 4:2:2"; break; | |
1159 | case V4L2_PIX_FMT_YUV422P: descr = "Planar YVU 4:2:2"; break; | |
1160 | case V4L2_PIX_FMT_YUV411P: descr = "Planar YUV 4:1:1"; break; | |
1161 | case V4L2_PIX_FMT_Y41P: descr = "YUV 4:1:1 (Packed)"; break; | |
1162 | case V4L2_PIX_FMT_YUV444: descr = "16-bit A/XYUV 4-4-4-4"; break; | |
1163 | case V4L2_PIX_FMT_YUV555: descr = "16-bit A/XYUV 1-5-5-5"; break; | |
1164 | case V4L2_PIX_FMT_YUV565: descr = "16-bit YUV 5-6-5"; break; | |
1165 | case V4L2_PIX_FMT_YUV32: descr = "32-bit A/XYUV 8-8-8-8"; break; | |
1166 | case V4L2_PIX_FMT_YUV410: descr = "Planar YUV 4:1:0"; break; | |
1167 | case V4L2_PIX_FMT_YUV420: descr = "Planar YUV 4:2:0"; break; | |
1168 | case V4L2_PIX_FMT_HI240: descr = "8-bit Dithered RGB (BTTV)"; break; | |
1169 | case V4L2_PIX_FMT_HM12: descr = "YUV 4:2:0 (16x16 Macroblocks)"; break; | |
1170 | case V4L2_PIX_FMT_M420: descr = "YUV 4:2:0 (M420)"; break; | |
1171 | case V4L2_PIX_FMT_NV12: descr = "Y/CbCr 4:2:0"; break; | |
1172 | case V4L2_PIX_FMT_NV21: descr = "Y/CrCb 4:2:0"; break; | |
1173 | case V4L2_PIX_FMT_NV16: descr = "Y/CbCr 4:2:2"; break; | |
1174 | case V4L2_PIX_FMT_NV61: descr = "Y/CrCb 4:2:2"; break; | |
1175 | case V4L2_PIX_FMT_NV24: descr = "Y/CbCr 4:4:4"; break; | |
1176 | case V4L2_PIX_FMT_NV42: descr = "Y/CrCb 4:4:4"; break; | |
1177 | case V4L2_PIX_FMT_NV12M: descr = "Y/CbCr 4:2:0 (N-C)"; break; | |
1178 | case V4L2_PIX_FMT_NV21M: descr = "Y/CrCb 4:2:0 (N-C)"; break; | |
1179 | case V4L2_PIX_FMT_NV16M: descr = "Y/CbCr 4:2:2 (N-C)"; break; | |
1180 | case V4L2_PIX_FMT_NV61M: descr = "Y/CrCb 4:2:2 (N-C)"; break; | |
1181 | case V4L2_PIX_FMT_NV12MT: descr = "Y/CbCr 4:2:0 (64x32 MB, N-C)"; break; | |
1182 | case V4L2_PIX_FMT_NV12MT_16X16: descr = "Y/CbCr 4:2:0 (16x16 MB, N-C)"; break; | |
1183 | case V4L2_PIX_FMT_YUV420M: descr = "Planar YUV 4:2:0 (N-C)"; break; | |
1184 | case V4L2_PIX_FMT_YVU420M: descr = "Planar YVU 4:2:0 (N-C)"; break; | |
1185 | case V4L2_PIX_FMT_SBGGR8: descr = "8-bit Bayer BGBG/GRGR"; break; | |
1186 | case V4L2_PIX_FMT_SGBRG8: descr = "8-bit Bayer GBGB/RGRG"; break; | |
1187 | case V4L2_PIX_FMT_SGRBG8: descr = "8-bit Bayer GRGR/BGBG"; break; | |
1188 | case V4L2_PIX_FMT_SRGGB8: descr = "8-bit Bayer RGRG/GBGB"; break; | |
1189 | case V4L2_PIX_FMT_SBGGR10: descr = "10-bit Bayer BGBG/GRGR"; break; | |
1190 | case V4L2_PIX_FMT_SGBRG10: descr = "10-bit Bayer GBGB/RGRG"; break; | |
1191 | case V4L2_PIX_FMT_SGRBG10: descr = "10-bit Bayer GRGR/BGBG"; break; | |
1192 | case V4L2_PIX_FMT_SRGGB10: descr = "10-bit Bayer RGRG/GBGB"; break; | |
1193 | case V4L2_PIX_FMT_SBGGR12: descr = "12-bit Bayer BGBG/GRGR"; break; | |
1194 | case V4L2_PIX_FMT_SGBRG12: descr = "12-bit Bayer GBGB/RGRG"; break; | |
1195 | case V4L2_PIX_FMT_SGRBG12: descr = "12-bit Bayer GRGR/BGBG"; break; | |
1196 | case V4L2_PIX_FMT_SRGGB12: descr = "12-bit Bayer RGRG/GBGB"; break; | |
1197 | case V4L2_PIX_FMT_SBGGR10P: descr = "10-bit Bayer BGBG/GRGR Packed"; break; | |
1198 | case V4L2_PIX_FMT_SGBRG10P: descr = "10-bit Bayer GBGB/RGRG Packed"; break; | |
1199 | case V4L2_PIX_FMT_SGRBG10P: descr = "10-bit Bayer GRGR/BGBG Packed"; break; | |
1200 | case V4L2_PIX_FMT_SRGGB10P: descr = "10-bit Bayer RGRG/GBGB Packed"; break; | |
1201 | case V4L2_PIX_FMT_SBGGR10ALAW8: descr = "8-bit Bayer BGBG/GRGR (A-law)"; break; | |
1202 | case V4L2_PIX_FMT_SGBRG10ALAW8: descr = "8-bit Bayer GBGB/RGRG (A-law)"; break; | |
1203 | case V4L2_PIX_FMT_SGRBG10ALAW8: descr = "8-bit Bayer GRGR/BGBG (A-law)"; break; | |
1204 | case V4L2_PIX_FMT_SRGGB10ALAW8: descr = "8-bit Bayer RGRG/GBGB (A-law)"; break; | |
1205 | case V4L2_PIX_FMT_SBGGR10DPCM8: descr = "8-bit Bayer BGBG/GRGR (DPCM)"; break; | |
1206 | case V4L2_PIX_FMT_SGBRG10DPCM8: descr = "8-bit Bayer GBGB/RGRG (DPCM)"; break; | |
1207 | case V4L2_PIX_FMT_SGRBG10DPCM8: descr = "8-bit Bayer GRGR/BGBG (DPCM)"; break; | |
1208 | case V4L2_PIX_FMT_SRGGB10DPCM8: descr = "8-bit Bayer RGRG/GBGB (DPCM)"; break; | |
1209 | case V4L2_PIX_FMT_SBGGR16: descr = "16-bit Bayer BGBG/GRGR (Exp.)"; break; | |
99b74277 | 1210 | case V4L2_PIX_FMT_SN9C20X_I420: descr = "GSPCA SN9C20X I420"; break; |
ba300204 HV |
1211 | case V4L2_PIX_FMT_SPCA501: descr = "GSPCA SPCA501"; break; |
1212 | case V4L2_PIX_FMT_SPCA505: descr = "GSPCA SPCA505"; break; | |
1213 | case V4L2_PIX_FMT_SPCA508: descr = "GSPCA SPCA508"; break; | |
1214 | case V4L2_PIX_FMT_STV0680: descr = "GSPCA STV0680"; break; | |
1215 | case V4L2_PIX_FMT_TM6000: descr = "A/V + VBI Mux Packet"; break; | |
1216 | case V4L2_PIX_FMT_CIT_YYVYUY: descr = "GSPCA CIT YYVYUY"; break; | |
1217 | case V4L2_PIX_FMT_KONICA420: descr = "GSPCA KONICA420"; break; | |
1218 | case V4L2_SDR_FMT_CU8: descr = "Complex U8 (Emulated)"; break; | |
1219 | case V4L2_SDR_FMT_CU16LE: descr = "Complex U16LE (Emulated)"; break; | |
1220 | case V4L2_SDR_FMT_CS8: descr = "Complex S8"; break; | |
1221 | case V4L2_SDR_FMT_CS14LE: descr = "Complex S14LE"; break; | |
1222 | case V4L2_SDR_FMT_RU12LE: descr = "Real U12LE"; break; | |
1223 | ||
1224 | default: | |
1225 | /* Compressed formats */ | |
1226 | flags = V4L2_FMT_FLAG_COMPRESSED; | |
1227 | switch (fmt->pixelformat) { | |
1228 | /* Max description length mask: descr = "0123456789012345678901234567890" */ | |
1229 | case V4L2_PIX_FMT_MJPEG: descr = "Motion-JPEG"; break; | |
1230 | case V4L2_PIX_FMT_JPEG: descr = "JFIF JPEG"; break; | |
1231 | case V4L2_PIX_FMT_DV: descr = "1394"; break; | |
1232 | case V4L2_PIX_FMT_MPEG: descr = "MPEG-1/2/4"; break; | |
1233 | case V4L2_PIX_FMT_H264: descr = "H.264"; break; | |
1234 | case V4L2_PIX_FMT_H264_NO_SC: descr = "H.264 (No Start Codes)"; break; | |
1235 | case V4L2_PIX_FMT_H264_MVC: descr = "H.264 MVC"; break; | |
1236 | case V4L2_PIX_FMT_H263: descr = "H.263"; break; | |
1237 | case V4L2_PIX_FMT_MPEG1: descr = "MPEG-1 ES"; break; | |
1238 | case V4L2_PIX_FMT_MPEG2: descr = "MPEG-2 ES"; break; | |
1239 | case V4L2_PIX_FMT_MPEG4: descr = "MPEG-4 part 2 ES"; break; | |
1240 | case V4L2_PIX_FMT_XVID: descr = "Xvid"; break; | |
1241 | case V4L2_PIX_FMT_VC1_ANNEX_G: descr = "VC-1 (SMPTE 412M Annex G)"; break; | |
1242 | case V4L2_PIX_FMT_VC1_ANNEX_L: descr = "VC-1 (SMPTE 412M Annex L)"; break; | |
1243 | case V4L2_PIX_FMT_VP8: descr = "VP8"; break; | |
1244 | case V4L2_PIX_FMT_CPIA1: descr = "GSPCA CPiA YUV"; break; | |
1245 | case V4L2_PIX_FMT_WNVA: descr = "WNVA"; break; | |
1246 | case V4L2_PIX_FMT_SN9C10X: descr = "GSPCA SN9C10X"; break; | |
1247 | case V4L2_PIX_FMT_PWC1: descr = "Raw Philips Webcam Type (Old)"; break; | |
1248 | case V4L2_PIX_FMT_PWC2: descr = "Raw Philips Webcam Type (New)"; break; | |
1249 | case V4L2_PIX_FMT_ET61X251: descr = "GSPCA ET61X251"; break; | |
1250 | case V4L2_PIX_FMT_SPCA561: descr = "GSPCA SPCA561"; break; | |
1251 | case V4L2_PIX_FMT_PAC207: descr = "GSPCA PAC207"; break; | |
1252 | case V4L2_PIX_FMT_MR97310A: descr = "GSPCA MR97310A"; break; | |
1253 | case V4L2_PIX_FMT_JL2005BCD: descr = "GSPCA JL2005BCD"; break; | |
1254 | case V4L2_PIX_FMT_SN9C2028: descr = "GSPCA SN9C2028"; break; | |
1255 | case V4L2_PIX_FMT_SQ905C: descr = "GSPCA SQ905C"; break; | |
1256 | case V4L2_PIX_FMT_PJPG: descr = "GSPCA PJPG"; break; | |
1257 | case V4L2_PIX_FMT_OV511: descr = "GSPCA OV511"; break; | |
1258 | case V4L2_PIX_FMT_OV518: descr = "GSPCA OV518"; break; | |
1259 | case V4L2_PIX_FMT_JPGL: descr = "JPEG Lite"; break; | |
1260 | case V4L2_PIX_FMT_SE401: descr = "GSPCA SE401"; break; | |
1261 | case V4L2_PIX_FMT_S5C_UYVY_JPG: descr = "S5C73MX interleaved UYVY/JPEG"; break; | |
1262 | default: | |
1263 | WARN(1, "Unknown pixelformat 0x%08x\n", fmt->pixelformat); | |
1264 | if (fmt->description[0]) | |
1265 | return; | |
1266 | flags = 0; | |
1267 | snprintf(fmt->description, sz, "%c%c%c%c%s", | |
1268 | (char)(fmt->pixelformat & 0x7f), | |
1269 | (char)((fmt->pixelformat >> 8) & 0x7f), | |
1270 | (char)((fmt->pixelformat >> 16) & 0x7f), | |
1271 | (char)((fmt->pixelformat >> 24) & 0x7f), | |
1272 | (fmt->pixelformat & (1 << 31)) ? "-BE" : ""); | |
1273 | break; | |
1274 | } | |
1275 | } | |
1276 | ||
1277 | if (descr) | |
1278 | WARN_ON(strlcpy(fmt->description, descr, sz) >= sz); | |
1279 | fmt->flags = flags; | |
1280 | } | |
1281 | ||
be6c64e4 HV |
1282 | static int v4l_enum_fmt(const struct v4l2_ioctl_ops *ops, |
1283 | struct file *file, void *fh, void *arg) | |
1284 | { | |
1285 | struct v4l2_fmtdesc *p = arg; | |
4b20259f | 1286 | struct video_device *vfd = video_devdata(file); |
ce71bbc9 HV |
1287 | bool is_vid = vfd->vfl_type == VFL_TYPE_GRABBER; |
1288 | bool is_sdr = vfd->vfl_type == VFL_TYPE_SDR; | |
4b20259f HV |
1289 | bool is_rx = vfd->vfl_dir != VFL_DIR_TX; |
1290 | bool is_tx = vfd->vfl_dir != VFL_DIR_RX; | |
ba300204 | 1291 | int ret = -EINVAL; |
be6c64e4 HV |
1292 | |
1293 | switch (p->type) { | |
1294 | case V4L2_BUF_TYPE_VIDEO_CAPTURE: | |
ce71bbc9 | 1295 | if (unlikely(!is_rx || !is_vid || !ops->vidioc_enum_fmt_vid_cap)) |
be6c64e4 | 1296 | break; |
ba300204 HV |
1297 | ret = ops->vidioc_enum_fmt_vid_cap(file, fh, arg); |
1298 | break; | |
be6c64e4 | 1299 | case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE: |
ce71bbc9 | 1300 | if (unlikely(!is_rx || !is_vid || !ops->vidioc_enum_fmt_vid_cap_mplane)) |
be6c64e4 | 1301 | break; |
ba300204 HV |
1302 | ret = ops->vidioc_enum_fmt_vid_cap_mplane(file, fh, arg); |
1303 | break; | |
be6c64e4 | 1304 | case V4L2_BUF_TYPE_VIDEO_OVERLAY: |
ce71bbc9 | 1305 | if (unlikely(!is_rx || !is_vid || !ops->vidioc_enum_fmt_vid_overlay)) |
be6c64e4 | 1306 | break; |
ba300204 HV |
1307 | ret = ops->vidioc_enum_fmt_vid_overlay(file, fh, arg); |
1308 | break; | |
be6c64e4 | 1309 | case V4L2_BUF_TYPE_VIDEO_OUTPUT: |
ce71bbc9 | 1310 | if (unlikely(!is_tx || !is_vid || !ops->vidioc_enum_fmt_vid_out)) |
be6c64e4 | 1311 | break; |
ba300204 HV |
1312 | ret = ops->vidioc_enum_fmt_vid_out(file, fh, arg); |
1313 | break; | |
be6c64e4 | 1314 | case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE: |
ce71bbc9 | 1315 | if (unlikely(!is_tx || !is_vid || !ops->vidioc_enum_fmt_vid_out_mplane)) |
be6c64e4 | 1316 | break; |
ba300204 HV |
1317 | ret = ops->vidioc_enum_fmt_vid_out_mplane(file, fh, arg); |
1318 | break; | |
582c52cb | 1319 | case V4L2_BUF_TYPE_SDR_CAPTURE: |
ce71bbc9 | 1320 | if (unlikely(!is_rx || !is_sdr || !ops->vidioc_enum_fmt_sdr_cap)) |
582c52cb | 1321 | break; |
ba300204 HV |
1322 | ret = ops->vidioc_enum_fmt_sdr_cap(file, fh, arg); |
1323 | break; | |
be6c64e4 | 1324 | } |
ba300204 HV |
1325 | if (ret == 0) |
1326 | v4l_fill_fmtdesc(p); | |
1327 | return ret; | |
be6c64e4 HV |
1328 | } |
1329 | ||
1330 | static int v4l_g_fmt(const struct v4l2_ioctl_ops *ops, | |
1331 | struct file *file, void *fh, void *arg) | |
1332 | { | |
1333 | struct v4l2_format *p = arg; | |
4b20259f HV |
1334 | struct video_device *vfd = video_devdata(file); |
1335 | bool is_vid = vfd->vfl_type == VFL_TYPE_GRABBER; | |
582c52cb | 1336 | bool is_sdr = vfd->vfl_type == VFL_TYPE_SDR; |
4b20259f HV |
1337 | bool is_rx = vfd->vfl_dir != VFL_DIR_TX; |
1338 | bool is_tx = vfd->vfl_dir != VFL_DIR_RX; | |
d52e2381 LP |
1339 | int ret; |
1340 | ||
e5ce558a HV |
1341 | /* |
1342 | * fmt can't be cleared for these overlay types due to the 'clips' | |
1343 | * 'clipcount' and 'bitmap' pointers in struct v4l2_window. | |
1344 | * Those are provided by the user. So handle these two overlay types | |
1345 | * first, and then just do a simple memset for the other types. | |
1346 | */ | |
1347 | switch (p->type) { | |
1348 | case V4L2_BUF_TYPE_VIDEO_OVERLAY: | |
1349 | case V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY: { | |
4d1afa51 | 1350 | struct v4l2_clip __user *clips = p->fmt.win.clips; |
e5ce558a | 1351 | u32 clipcount = p->fmt.win.clipcount; |
4d1afa51 | 1352 | void __user *bitmap = p->fmt.win.bitmap; |
e5ce558a HV |
1353 | |
1354 | memset(&p->fmt, 0, sizeof(p->fmt)); | |
1355 | p->fmt.win.clips = clips; | |
1356 | p->fmt.win.clipcount = clipcount; | |
1357 | p->fmt.win.bitmap = bitmap; | |
1358 | break; | |
1359 | } | |
1360 | default: | |
1361 | memset(&p->fmt, 0, sizeof(p->fmt)); | |
1362 | break; | |
1363 | } | |
1364 | ||
be6c64e4 HV |
1365 | switch (p->type) { |
1366 | case V4L2_BUF_TYPE_VIDEO_CAPTURE: | |
4b20259f | 1367 | if (unlikely(!is_rx || !is_vid || !ops->vidioc_g_fmt_vid_cap)) |
be6c64e4 | 1368 | break; |
48f2650a | 1369 | p->fmt.pix.priv = V4L2_PIX_FMT_PRIV_MAGIC; |
d52e2381 | 1370 | ret = ops->vidioc_g_fmt_vid_cap(file, fh, arg); |
48f2650a | 1371 | /* just in case the driver zeroed it again */ |
d52e2381 LP |
1372 | p->fmt.pix.priv = V4L2_PIX_FMT_PRIV_MAGIC; |
1373 | return ret; | |
be6c64e4 | 1374 | case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE: |
4b20259f | 1375 | if (unlikely(!is_rx || !is_vid || !ops->vidioc_g_fmt_vid_cap_mplane)) |
be6c64e4 HV |
1376 | break; |
1377 | return ops->vidioc_g_fmt_vid_cap_mplane(file, fh, arg); | |
1378 | case V4L2_BUF_TYPE_VIDEO_OVERLAY: | |
4b20259f | 1379 | if (unlikely(!is_rx || !is_vid || !ops->vidioc_g_fmt_vid_overlay)) |
be6c64e4 HV |
1380 | break; |
1381 | return ops->vidioc_g_fmt_vid_overlay(file, fh, arg); | |
4b20259f HV |
1382 | case V4L2_BUF_TYPE_VBI_CAPTURE: |
1383 | if (unlikely(!is_rx || is_vid || !ops->vidioc_g_fmt_vbi_cap)) | |
1384 | break; | |
1385 | return ops->vidioc_g_fmt_vbi_cap(file, fh, arg); | |
1386 | case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE: | |
1387 | if (unlikely(!is_rx || is_vid || !ops->vidioc_g_fmt_sliced_vbi_cap)) | |
1388 | break; | |
1389 | return ops->vidioc_g_fmt_sliced_vbi_cap(file, fh, arg); | |
be6c64e4 | 1390 | case V4L2_BUF_TYPE_VIDEO_OUTPUT: |
4b20259f | 1391 | if (unlikely(!is_tx || !is_vid || !ops->vidioc_g_fmt_vid_out)) |
be6c64e4 | 1392 | break; |
48f2650a | 1393 | p->fmt.pix.priv = V4L2_PIX_FMT_PRIV_MAGIC; |
d52e2381 | 1394 | ret = ops->vidioc_g_fmt_vid_out(file, fh, arg); |
48f2650a | 1395 | /* just in case the driver zeroed it again */ |
d52e2381 LP |
1396 | p->fmt.pix.priv = V4L2_PIX_FMT_PRIV_MAGIC; |
1397 | return ret; | |
be6c64e4 | 1398 | case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE: |
4b20259f | 1399 | if (unlikely(!is_tx || !is_vid || !ops->vidioc_g_fmt_vid_out_mplane)) |
be6c64e4 HV |
1400 | break; |
1401 | return ops->vidioc_g_fmt_vid_out_mplane(file, fh, arg); | |
1402 | case V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY: | |
4b20259f | 1403 | if (unlikely(!is_tx || !is_vid || !ops->vidioc_g_fmt_vid_out_overlay)) |
be6c64e4 HV |
1404 | break; |
1405 | return ops->vidioc_g_fmt_vid_out_overlay(file, fh, arg); | |
be6c64e4 | 1406 | case V4L2_BUF_TYPE_VBI_OUTPUT: |
4b20259f | 1407 | if (unlikely(!is_tx || is_vid || !ops->vidioc_g_fmt_vbi_out)) |
be6c64e4 HV |
1408 | break; |
1409 | return ops->vidioc_g_fmt_vbi_out(file, fh, arg); | |
be6c64e4 | 1410 | case V4L2_BUF_TYPE_SLICED_VBI_OUTPUT: |
4b20259f | 1411 | if (unlikely(!is_tx || is_vid || !ops->vidioc_g_fmt_sliced_vbi_out)) |
be6c64e4 HV |
1412 | break; |
1413 | return ops->vidioc_g_fmt_sliced_vbi_out(file, fh, arg); | |
582c52cb AP |
1414 | case V4L2_BUF_TYPE_SDR_CAPTURE: |
1415 | if (unlikely(!is_rx || !is_sdr || !ops->vidioc_g_fmt_sdr_cap)) | |
1416 | break; | |
1417 | return ops->vidioc_g_fmt_sdr_cap(file, fh, arg); | |
be6c64e4 HV |
1418 | } |
1419 | return -EINVAL; | |
1420 | } | |
1421 | ||
1422 | static int v4l_s_fmt(const struct v4l2_ioctl_ops *ops, | |
1423 | struct file *file, void *fh, void *arg) | |
1424 | { | |
1425 | struct v4l2_format *p = arg; | |
4b20259f HV |
1426 | struct video_device *vfd = video_devdata(file); |
1427 | bool is_vid = vfd->vfl_type == VFL_TYPE_GRABBER; | |
582c52cb | 1428 | bool is_sdr = vfd->vfl_type == VFL_TYPE_SDR; |
4b20259f HV |
1429 | bool is_rx = vfd->vfl_dir != VFL_DIR_TX; |
1430 | bool is_tx = vfd->vfl_dir != VFL_DIR_RX; | |
48f2650a | 1431 | int ret; |
be6c64e4 | 1432 | |
d52e2381 LP |
1433 | v4l_sanitize_format(p); |
1434 | ||
be6c64e4 HV |
1435 | switch (p->type) { |
1436 | case V4L2_BUF_TYPE_VIDEO_CAPTURE: | |
4b20259f | 1437 | if (unlikely(!is_rx || !is_vid || !ops->vidioc_s_fmt_vid_cap)) |
be6c64e4 HV |
1438 | break; |
1439 | CLEAR_AFTER_FIELD(p, fmt.pix); | |
48f2650a HV |
1440 | ret = ops->vidioc_s_fmt_vid_cap(file, fh, arg); |
1441 | /* just in case the driver zeroed it again */ | |
1442 | p->fmt.pix.priv = V4L2_PIX_FMT_PRIV_MAGIC; | |
1443 | return ret; | |
be6c64e4 | 1444 | case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE: |
4b20259f | 1445 | if (unlikely(!is_rx || !is_vid || !ops->vidioc_s_fmt_vid_cap_mplane)) |
be6c64e4 HV |
1446 | break; |
1447 | CLEAR_AFTER_FIELD(p, fmt.pix_mp); | |
1448 | return ops->vidioc_s_fmt_vid_cap_mplane(file, fh, arg); | |
1449 | case V4L2_BUF_TYPE_VIDEO_OVERLAY: | |
4b20259f | 1450 | if (unlikely(!is_rx || !is_vid || !ops->vidioc_s_fmt_vid_overlay)) |
be6c64e4 HV |
1451 | break; |
1452 | CLEAR_AFTER_FIELD(p, fmt.win); | |
1453 | return ops->vidioc_s_fmt_vid_overlay(file, fh, arg); | |
4b20259f HV |
1454 | case V4L2_BUF_TYPE_VBI_CAPTURE: |
1455 | if (unlikely(!is_rx || is_vid || !ops->vidioc_s_fmt_vbi_cap)) | |
1456 | break; | |
1457 | CLEAR_AFTER_FIELD(p, fmt.vbi); | |
1458 | return ops->vidioc_s_fmt_vbi_cap(file, fh, arg); | |
1459 | case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE: | |
1460 | if (unlikely(!is_rx || is_vid || !ops->vidioc_s_fmt_sliced_vbi_cap)) | |
1461 | break; | |
1462 | CLEAR_AFTER_FIELD(p, fmt.sliced); | |
1463 | return ops->vidioc_s_fmt_sliced_vbi_cap(file, fh, arg); | |
be6c64e4 | 1464 | case V4L2_BUF_TYPE_VIDEO_OUTPUT: |
4b20259f | 1465 | if (unlikely(!is_tx || !is_vid || !ops->vidioc_s_fmt_vid_out)) |
be6c64e4 HV |
1466 | break; |
1467 | CLEAR_AFTER_FIELD(p, fmt.pix); | |
48f2650a HV |
1468 | ret = ops->vidioc_s_fmt_vid_out(file, fh, arg); |
1469 | /* just in case the driver zeroed it again */ | |
1470 | p->fmt.pix.priv = V4L2_PIX_FMT_PRIV_MAGIC; | |
1471 | return ret; | |
be6c64e4 | 1472 | case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE: |
4b20259f | 1473 | if (unlikely(!is_tx || !is_vid || !ops->vidioc_s_fmt_vid_out_mplane)) |
be6c64e4 HV |
1474 | break; |
1475 | CLEAR_AFTER_FIELD(p, fmt.pix_mp); | |
1476 | return ops->vidioc_s_fmt_vid_out_mplane(file, fh, arg); | |
1477 | case V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY: | |
4b20259f | 1478 | if (unlikely(!is_tx || !is_vid || !ops->vidioc_s_fmt_vid_out_overlay)) |
be6c64e4 HV |
1479 | break; |
1480 | CLEAR_AFTER_FIELD(p, fmt.win); | |
1481 | return ops->vidioc_s_fmt_vid_out_overlay(file, fh, arg); | |
be6c64e4 | 1482 | case V4L2_BUF_TYPE_VBI_OUTPUT: |
4b20259f | 1483 | if (unlikely(!is_tx || is_vid || !ops->vidioc_s_fmt_vbi_out)) |
be6c64e4 HV |
1484 | break; |
1485 | CLEAR_AFTER_FIELD(p, fmt.vbi); | |
1486 | return ops->vidioc_s_fmt_vbi_out(file, fh, arg); | |
be6c64e4 | 1487 | case V4L2_BUF_TYPE_SLICED_VBI_OUTPUT: |
4b20259f | 1488 | if (unlikely(!is_tx || is_vid || !ops->vidioc_s_fmt_sliced_vbi_out)) |
be6c64e4 HV |
1489 | break; |
1490 | CLEAR_AFTER_FIELD(p, fmt.sliced); | |
1491 | return ops->vidioc_s_fmt_sliced_vbi_out(file, fh, arg); | |
582c52cb AP |
1492 | case V4L2_BUF_TYPE_SDR_CAPTURE: |
1493 | if (unlikely(!is_rx || !is_sdr || !ops->vidioc_s_fmt_sdr_cap)) | |
1494 | break; | |
1495 | CLEAR_AFTER_FIELD(p, fmt.sdr); | |
1496 | return ops->vidioc_s_fmt_sdr_cap(file, fh, arg); | |
be6c64e4 HV |
1497 | } |
1498 | return -EINVAL; | |
1499 | } | |
1500 | ||
1501 | static int v4l_try_fmt(const struct v4l2_ioctl_ops *ops, | |
1502 | struct file *file, void *fh, void *arg) | |
1503 | { | |
1504 | struct v4l2_format *p = arg; | |
4b20259f HV |
1505 | struct video_device *vfd = video_devdata(file); |
1506 | bool is_vid = vfd->vfl_type == VFL_TYPE_GRABBER; | |
582c52cb | 1507 | bool is_sdr = vfd->vfl_type == VFL_TYPE_SDR; |
4b20259f HV |
1508 | bool is_rx = vfd->vfl_dir != VFL_DIR_TX; |
1509 | bool is_tx = vfd->vfl_dir != VFL_DIR_RX; | |
48f2650a | 1510 | int ret; |
be6c64e4 | 1511 | |
d52e2381 LP |
1512 | v4l_sanitize_format(p); |
1513 | ||
be6c64e4 HV |
1514 | switch (p->type) { |
1515 | case V4L2_BUF_TYPE_VIDEO_CAPTURE: | |
4b20259f | 1516 | if (unlikely(!is_rx || !is_vid || !ops->vidioc_try_fmt_vid_cap)) |
be6c64e4 HV |
1517 | break; |
1518 | CLEAR_AFTER_FIELD(p, fmt.pix); | |
48f2650a HV |
1519 | ret = ops->vidioc_try_fmt_vid_cap(file, fh, arg); |
1520 | /* just in case the driver zeroed it again */ | |
1521 | p->fmt.pix.priv = V4L2_PIX_FMT_PRIV_MAGIC; | |
1522 | return ret; | |
be6c64e4 | 1523 | case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE: |
4b20259f | 1524 | if (unlikely(!is_rx || !is_vid || !ops->vidioc_try_fmt_vid_cap_mplane)) |
be6c64e4 HV |
1525 | break; |
1526 | CLEAR_AFTER_FIELD(p, fmt.pix_mp); | |
1527 | return ops->vidioc_try_fmt_vid_cap_mplane(file, fh, arg); | |
1528 | case V4L2_BUF_TYPE_VIDEO_OVERLAY: | |
4b20259f | 1529 | if (unlikely(!is_rx || !is_vid || !ops->vidioc_try_fmt_vid_overlay)) |
be6c64e4 HV |
1530 | break; |
1531 | CLEAR_AFTER_FIELD(p, fmt.win); | |
1532 | return ops->vidioc_try_fmt_vid_overlay(file, fh, arg); | |
4b20259f HV |
1533 | case V4L2_BUF_TYPE_VBI_CAPTURE: |
1534 | if (unlikely(!is_rx || is_vid || !ops->vidioc_try_fmt_vbi_cap)) | |
1535 | break; | |
1536 | CLEAR_AFTER_FIELD(p, fmt.vbi); | |
1537 | return ops->vidioc_try_fmt_vbi_cap(file, fh, arg); | |
1538 | case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE: | |
1539 | if (unlikely(!is_rx || is_vid || !ops->vidioc_try_fmt_sliced_vbi_cap)) | |
1540 | break; | |
1541 | CLEAR_AFTER_FIELD(p, fmt.sliced); | |
1542 | return ops->vidioc_try_fmt_sliced_vbi_cap(file, fh, arg); | |
be6c64e4 | 1543 | case V4L2_BUF_TYPE_VIDEO_OUTPUT: |
4b20259f | 1544 | if (unlikely(!is_tx || !is_vid || !ops->vidioc_try_fmt_vid_out)) |
be6c64e4 HV |
1545 | break; |
1546 | CLEAR_AFTER_FIELD(p, fmt.pix); | |
48f2650a HV |
1547 | ret = ops->vidioc_try_fmt_vid_out(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_OUTPUT_MPLANE: |
4b20259f | 1552 | if (unlikely(!is_tx || !is_vid || !ops->vidioc_try_fmt_vid_out_mplane)) |
be6c64e4 HV |
1553 | break; |
1554 | CLEAR_AFTER_FIELD(p, fmt.pix_mp); | |
1555 | return ops->vidioc_try_fmt_vid_out_mplane(file, fh, arg); | |
1556 | case V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY: | |
4b20259f | 1557 | if (unlikely(!is_tx || !is_vid || !ops->vidioc_try_fmt_vid_out_overlay)) |
be6c64e4 HV |
1558 | break; |
1559 | CLEAR_AFTER_FIELD(p, fmt.win); | |
1560 | return ops->vidioc_try_fmt_vid_out_overlay(file, fh, arg); | |
be6c64e4 | 1561 | case V4L2_BUF_TYPE_VBI_OUTPUT: |
4b20259f | 1562 | if (unlikely(!is_tx || is_vid || !ops->vidioc_try_fmt_vbi_out)) |
be6c64e4 HV |
1563 | break; |
1564 | CLEAR_AFTER_FIELD(p, fmt.vbi); | |
1565 | return ops->vidioc_try_fmt_vbi_out(file, fh, arg); | |
be6c64e4 | 1566 | case V4L2_BUF_TYPE_SLICED_VBI_OUTPUT: |
4b20259f | 1567 | if (unlikely(!is_tx || is_vid || !ops->vidioc_try_fmt_sliced_vbi_out)) |
be6c64e4 HV |
1568 | break; |
1569 | CLEAR_AFTER_FIELD(p, fmt.sliced); | |
1570 | return ops->vidioc_try_fmt_sliced_vbi_out(file, fh, arg); | |
582c52cb AP |
1571 | case V4L2_BUF_TYPE_SDR_CAPTURE: |
1572 | if (unlikely(!is_rx || !is_sdr || !ops->vidioc_try_fmt_sdr_cap)) | |
1573 | break; | |
1574 | CLEAR_AFTER_FIELD(p, fmt.sdr); | |
1575 | return ops->vidioc_try_fmt_sdr_cap(file, fh, arg); | |
be6c64e4 HV |
1576 | } |
1577 | return -EINVAL; | |
1578 | } | |
1579 | ||
e325b244 HV |
1580 | static int v4l_streamon(const struct v4l2_ioctl_ops *ops, |
1581 | struct file *file, void *fh, void *arg) | |
1582 | { | |
1583 | return ops->vidioc_streamon(file, fh, *(unsigned int *)arg); | |
1584 | } | |
1585 | ||
1586 | static int v4l_streamoff(const struct v4l2_ioctl_ops *ops, | |
1587 | struct file *file, void *fh, void *arg) | |
1588 | { | |
1589 | return ops->vidioc_streamoff(file, fh, *(unsigned int *)arg); | |
1590 | } | |
1591 | ||
4b1e2e4d HV |
1592 | static int v4l_g_tuner(const struct v4l2_ioctl_ops *ops, |
1593 | struct file *file, void *fh, void *arg) | |
1594 | { | |
1595 | struct video_device *vfd = video_devdata(file); | |
1596 | struct v4l2_tuner *p = arg; | |
82b655bf | 1597 | int err; |
4b1e2e4d HV |
1598 | |
1599 | p->type = (vfd->vfl_type == VFL_TYPE_RADIO) ? | |
1600 | V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV; | |
82b655bf HV |
1601 | err = ops->vidioc_g_tuner(file, fh, p); |
1602 | if (!err) | |
1603 | p->capability |= V4L2_TUNER_CAP_FREQ_BANDS; | |
1604 | return err; | |
4b1e2e4d HV |
1605 | } |
1606 | ||
1607 | static int v4l_s_tuner(const struct v4l2_ioctl_ops *ops, | |
1608 | struct file *file, void *fh, void *arg) | |
1609 | { | |
1610 | struct video_device *vfd = video_devdata(file); | |
1611 | struct v4l2_tuner *p = arg; | |
1612 | ||
1613 | p->type = (vfd->vfl_type == VFL_TYPE_RADIO) ? | |
1614 | V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV; | |
1615 | return ops->vidioc_s_tuner(file, fh, p); | |
1616 | } | |
1617 | ||
82b655bf HV |
1618 | static int v4l_g_modulator(const struct v4l2_ioctl_ops *ops, |
1619 | struct file *file, void *fh, void *arg) | |
1620 | { | |
1621 | struct v4l2_modulator *p = arg; | |
1622 | int err; | |
1623 | ||
1624 | err = ops->vidioc_g_modulator(file, fh, p); | |
1625 | if (!err) | |
1626 | p->capability |= V4L2_TUNER_CAP_FREQ_BANDS; | |
1627 | return err; | |
1628 | } | |
1629 | ||
4b1e2e4d HV |
1630 | static int v4l_g_frequency(const struct v4l2_ioctl_ops *ops, |
1631 | struct file *file, void *fh, void *arg) | |
1632 | { | |
1633 | struct video_device *vfd = video_devdata(file); | |
1634 | struct v4l2_frequency *p = arg; | |
1635 | ||
84099a28 AP |
1636 | if (vfd->vfl_type == VFL_TYPE_SDR) |
1637 | p->type = V4L2_TUNER_ADC; | |
1638 | else | |
1639 | p->type = (vfd->vfl_type == VFL_TYPE_RADIO) ? | |
1640 | V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV; | |
4b1e2e4d HV |
1641 | return ops->vidioc_g_frequency(file, fh, p); |
1642 | } | |
1643 | ||
1644 | static int v4l_s_frequency(const struct v4l2_ioctl_ops *ops, | |
1645 | struct file *file, void *fh, void *arg) | |
1646 | { | |
1647 | struct video_device *vfd = video_devdata(file); | |
b530a447 | 1648 | const struct v4l2_frequency *p = arg; |
4b1e2e4d HV |
1649 | enum v4l2_tuner_type type; |
1650 | ||
84099a28 AP |
1651 | if (vfd->vfl_type == VFL_TYPE_SDR) { |
1652 | if (p->type != V4L2_TUNER_ADC && p->type != V4L2_TUNER_RF) | |
1653 | return -EINVAL; | |
1654 | } else { | |
1655 | type = (vfd->vfl_type == VFL_TYPE_RADIO) ? | |
1656 | V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV; | |
1657 | if (type != p->type) | |
1658 | return -EINVAL; | |
1659 | } | |
4b1e2e4d HV |
1660 | return ops->vidioc_s_frequency(file, fh, p); |
1661 | } | |
1662 | ||
1663 | static int v4l_enumstd(const struct v4l2_ioctl_ops *ops, | |
1664 | struct file *file, void *fh, void *arg) | |
1665 | { | |
1666 | struct video_device *vfd = video_devdata(file); | |
1667 | struct v4l2_standard *p = arg; | |
1668 | v4l2_std_id id = vfd->tvnorms, curr_id = 0; | |
1669 | unsigned int index = p->index, i, j = 0; | |
1670 | const char *descr = ""; | |
1671 | ||
a5338190 HV |
1672 | /* Return -ENODATA if the tvnorms for the current input |
1673 | or output is 0, meaning that it doesn't support this API. */ | |
1674 | if (id == 0) | |
1675 | return -ENODATA; | |
1676 | ||
4b1e2e4d HV |
1677 | /* Return norm array in a canonical way */ |
1678 | for (i = 0; i <= index && id; i++) { | |
1679 | /* last std value in the standards array is 0, so this | |
1680 | while always ends there since (id & 0) == 0. */ | |
1681 | while ((id & standards[j].std) != standards[j].std) | |
1682 | j++; | |
1683 | curr_id = standards[j].std; | |
1684 | descr = standards[j].descr; | |
1685 | j++; | |
1686 | if (curr_id == 0) | |
1687 | break; | |
1688 | if (curr_id != V4L2_STD_PAL && | |
1689 | curr_id != V4L2_STD_SECAM && | |
1690 | curr_id != V4L2_STD_NTSC) | |
1691 | id &= ~curr_id; | |
1692 | } | |
1693 | if (i <= index) | |
1694 | return -EINVAL; | |
1695 | ||
1696 | v4l2_video_std_construct(p, curr_id, descr); | |
1697 | return 0; | |
1698 | } | |
1699 | ||
4b1e2e4d HV |
1700 | static int v4l_s_std(const struct v4l2_ioctl_ops *ops, |
1701 | struct file *file, void *fh, void *arg) | |
1702 | { | |
1703 | struct video_device *vfd = video_devdata(file); | |
314527ac | 1704 | v4l2_std_id id = *(v4l2_std_id *)arg, norm; |
4b1e2e4d | 1705 | |
314527ac | 1706 | norm = id & vfd->tvnorms; |
4b1e2e4d HV |
1707 | if (vfd->tvnorms && !norm) /* Check if std is supported */ |
1708 | return -EINVAL; | |
1709 | ||
1710 | /* Calls the specific handler */ | |
ca371575 | 1711 | return ops->vidioc_s_std(file, fh, norm); |
4b1e2e4d HV |
1712 | } |
1713 | ||
1714 | static int v4l_querystd(const struct v4l2_ioctl_ops *ops, | |
1715 | struct file *file, void *fh, void *arg) | |
1716 | { | |
1717 | struct video_device *vfd = video_devdata(file); | |
1718 | v4l2_std_id *p = arg; | |
1719 | ||
1720 | /* | |
1a2c6866 HV |
1721 | * If no signal is detected, then the driver should return |
1722 | * V4L2_STD_UNKNOWN. Otherwise it should return tvnorms with | |
1723 | * any standards that do not apply removed. | |
1724 | * | |
4b1e2e4d HV |
1725 | * This means that tuners, audio and video decoders can join |
1726 | * their efforts to improve the standards detection. | |
1727 | */ | |
1728 | *p = vfd->tvnorms; | |
1729 | return ops->vidioc_querystd(file, fh, arg); | |
1730 | } | |
1731 | ||
1732 | static int v4l_s_hw_freq_seek(const struct v4l2_ioctl_ops *ops, | |
1733 | struct file *file, void *fh, void *arg) | |
1734 | { | |
1735 | struct video_device *vfd = video_devdata(file); | |
1736 | struct v4l2_hw_freq_seek *p = arg; | |
1737 | enum v4l2_tuner_type type; | |
1738 | ||
84099a28 AP |
1739 | /* s_hw_freq_seek is not supported for SDR for now */ |
1740 | if (vfd->vfl_type == VFL_TYPE_SDR) | |
1741 | return -EINVAL; | |
1742 | ||
4b1e2e4d HV |
1743 | type = (vfd->vfl_type == VFL_TYPE_RADIO) ? |
1744 | V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV; | |
1745 | if (p->type != type) | |
1746 | return -EINVAL; | |
1747 | return ops->vidioc_s_hw_freq_seek(file, fh, p); | |
1748 | } | |
1749 | ||
737c097b HV |
1750 | static int v4l_overlay(const struct v4l2_ioctl_ops *ops, |
1751 | struct file *file, void *fh, void *arg) | |
1752 | { | |
1753 | return ops->vidioc_overlay(file, fh, *(unsigned int *)arg); | |
1754 | } | |
1755 | ||
eb3728ed HV |
1756 | static int v4l_reqbufs(const struct v4l2_ioctl_ops *ops, |
1757 | struct file *file, void *fh, void *arg) | |
1758 | { | |
1759 | struct v4l2_requestbuffers *p = arg; | |
4b20259f | 1760 | int ret = check_fmt(file, p->type); |
eb3728ed HV |
1761 | |
1762 | if (ret) | |
1763 | return ret; | |
1764 | ||
633c98e5 | 1765 | CLEAR_AFTER_FIELD(p, memory); |
eb3728ed HV |
1766 | |
1767 | return ops->vidioc_reqbufs(file, fh, p); | |
1768 | } | |
1769 | ||
1770 | static int v4l_querybuf(const struct v4l2_ioctl_ops *ops, | |
1771 | struct file *file, void *fh, void *arg) | |
1772 | { | |
1773 | struct v4l2_buffer *p = arg; | |
4b20259f | 1774 | int ret = check_fmt(file, p->type); |
eb3728ed HV |
1775 | |
1776 | return ret ? ret : ops->vidioc_querybuf(file, fh, p); | |
1777 | } | |
1778 | ||
1779 | static int v4l_qbuf(const struct v4l2_ioctl_ops *ops, | |
1780 | struct file *file, void *fh, void *arg) | |
1781 | { | |
1782 | struct v4l2_buffer *p = arg; | |
4b20259f | 1783 | int ret = check_fmt(file, p->type); |
eb3728ed HV |
1784 | |
1785 | return ret ? ret : ops->vidioc_qbuf(file, fh, p); | |
1786 | } | |
1787 | ||
1788 | static int v4l_dqbuf(const struct v4l2_ioctl_ops *ops, | |
1789 | struct file *file, void *fh, void *arg) | |
1790 | { | |
1791 | struct v4l2_buffer *p = arg; | |
4b20259f | 1792 | int ret = check_fmt(file, p->type); |
eb3728ed HV |
1793 | |
1794 | return ret ? ret : ops->vidioc_dqbuf(file, fh, p); | |
1795 | } | |
1796 | ||
1797 | static int v4l_create_bufs(const struct v4l2_ioctl_ops *ops, | |
1798 | struct file *file, void *fh, void *arg) | |
1799 | { | |
1800 | struct v4l2_create_buffers *create = arg; | |
4b20259f | 1801 | int ret = check_fmt(file, create->format.type); |
eb3728ed | 1802 | |
d52e2381 LP |
1803 | if (ret) |
1804 | return ret; | |
1805 | ||
1806 | v4l_sanitize_format(&create->format); | |
1807 | ||
1808 | ret = ops->vidioc_create_bufs(file, fh, create); | |
1809 | ||
1810 | if (create->format.type == V4L2_BUF_TYPE_VIDEO_CAPTURE || | |
1811 | create->format.type == V4L2_BUF_TYPE_VIDEO_OUTPUT) | |
1812 | create->format.fmt.pix.priv = V4L2_PIX_FMT_PRIV_MAGIC; | |
1813 | ||
1814 | return ret; | |
eb3728ed HV |
1815 | } |
1816 | ||
1817 | static int v4l_prepare_buf(const struct v4l2_ioctl_ops *ops, | |
1818 | struct file *file, void *fh, void *arg) | |
1819 | { | |
1820 | struct v4l2_buffer *b = arg; | |
4b20259f | 1821 | int ret = check_fmt(file, b->type); |
eb3728ed HV |
1822 | |
1823 | return ret ? ret : ops->vidioc_prepare_buf(file, fh, b); | |
1824 | } | |
1825 | ||
1826 | static int v4l_g_parm(const struct v4l2_ioctl_ops *ops, | |
1827 | struct file *file, void *fh, void *arg) | |
1828 | { | |
eb3728ed HV |
1829 | struct v4l2_streamparm *p = arg; |
1830 | v4l2_std_id std; | |
4b20259f | 1831 | int ret = check_fmt(file, p->type); |
eb3728ed HV |
1832 | |
1833 | if (ret) | |
1834 | return ret; | |
1835 | if (ops->vidioc_g_parm) | |
1836 | return ops->vidioc_g_parm(file, fh, p); | |
eb3728ed HV |
1837 | if (p->type != V4L2_BUF_TYPE_VIDEO_CAPTURE && |
1838 | p->type != V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) | |
1839 | return -EINVAL; | |
1840 | p->parm.capture.readbuffers = 2; | |
ca371575 | 1841 | ret = ops->vidioc_g_std(file, fh, &std); |
eb3728ed | 1842 | if (ret == 0) |
ca371575 | 1843 | v4l2_video_std_frame_period(std, &p->parm.capture.timeperframe); |
eb3728ed HV |
1844 | return ret; |
1845 | } | |
1846 | ||
1847 | static int v4l_s_parm(const struct v4l2_ioctl_ops *ops, | |
1848 | struct file *file, void *fh, void *arg) | |
1849 | { | |
1850 | struct v4l2_streamparm *p = arg; | |
4b20259f | 1851 | int ret = check_fmt(file, p->type); |
eb3728ed HV |
1852 | |
1853 | return ret ? ret : ops->vidioc_s_parm(file, fh, p); | |
1854 | } | |
1855 | ||
efbceecd HV |
1856 | static int v4l_queryctrl(const struct v4l2_ioctl_ops *ops, |
1857 | struct file *file, void *fh, void *arg) | |
1858 | { | |
1859 | struct video_device *vfd = video_devdata(file); | |
1860 | struct v4l2_queryctrl *p = arg; | |
7a3ed2d9 HV |
1861 | struct v4l2_fh *vfh = |
1862 | test_bit(V4L2_FL_USES_V4L2_FH, &vfd->flags) ? fh : NULL; | |
efbceecd HV |
1863 | |
1864 | if (vfh && vfh->ctrl_handler) | |
1865 | return v4l2_queryctrl(vfh->ctrl_handler, p); | |
1866 | if (vfd->ctrl_handler) | |
1867 | return v4l2_queryctrl(vfd->ctrl_handler, p); | |
1868 | if (ops->vidioc_queryctrl) | |
1869 | return ops->vidioc_queryctrl(file, fh, p); | |
1870 | return -ENOTTY; | |
1871 | } | |
1872 | ||
e6bee368 HV |
1873 | static int v4l_query_ext_ctrl(const struct v4l2_ioctl_ops *ops, |
1874 | struct file *file, void *fh, void *arg) | |
1875 | { | |
1876 | struct video_device *vfd = video_devdata(file); | |
1877 | struct v4l2_query_ext_ctrl *p = arg; | |
1878 | struct v4l2_fh *vfh = | |
1879 | test_bit(V4L2_FL_USES_V4L2_FH, &vfd->flags) ? fh : NULL; | |
1880 | ||
1881 | if (vfh && vfh->ctrl_handler) | |
1882 | return v4l2_query_ext_ctrl(vfh->ctrl_handler, p); | |
1883 | if (vfd->ctrl_handler) | |
1884 | return v4l2_query_ext_ctrl(vfd->ctrl_handler, p); | |
1885 | if (ops->vidioc_query_ext_ctrl) | |
1886 | return ops->vidioc_query_ext_ctrl(file, fh, p); | |
1887 | return -ENOTTY; | |
1888 | } | |
1889 | ||
efbceecd HV |
1890 | static int v4l_querymenu(const struct v4l2_ioctl_ops *ops, |
1891 | struct file *file, void *fh, void *arg) | |
1892 | { | |
1893 | struct video_device *vfd = video_devdata(file); | |
1894 | struct v4l2_querymenu *p = arg; | |
7a3ed2d9 HV |
1895 | struct v4l2_fh *vfh = |
1896 | test_bit(V4L2_FL_USES_V4L2_FH, &vfd->flags) ? fh : NULL; | |
efbceecd HV |
1897 | |
1898 | if (vfh && vfh->ctrl_handler) | |
1899 | return v4l2_querymenu(vfh->ctrl_handler, p); | |
1900 | if (vfd->ctrl_handler) | |
1901 | return v4l2_querymenu(vfd->ctrl_handler, p); | |
1902 | if (ops->vidioc_querymenu) | |
1903 | return ops->vidioc_querymenu(file, fh, p); | |
1904 | return -ENOTTY; | |
1905 | } | |
1906 | ||
1907 | static int v4l_g_ctrl(const struct v4l2_ioctl_ops *ops, | |
1908 | struct file *file, void *fh, void *arg) | |
1909 | { | |
1910 | struct video_device *vfd = video_devdata(file); | |
1911 | struct v4l2_control *p = arg; | |
7a3ed2d9 HV |
1912 | struct v4l2_fh *vfh = |
1913 | test_bit(V4L2_FL_USES_V4L2_FH, &vfd->flags) ? fh : NULL; | |
efbceecd HV |
1914 | struct v4l2_ext_controls ctrls; |
1915 | struct v4l2_ext_control ctrl; | |
1916 | ||
1917 | if (vfh && vfh->ctrl_handler) | |
1918 | return v4l2_g_ctrl(vfh->ctrl_handler, p); | |
1919 | if (vfd->ctrl_handler) | |
1920 | return v4l2_g_ctrl(vfd->ctrl_handler, p); | |
1921 | if (ops->vidioc_g_ctrl) | |
1922 | return ops->vidioc_g_ctrl(file, fh, p); | |
1923 | if (ops->vidioc_g_ext_ctrls == NULL) | |
1924 | return -ENOTTY; | |
1925 | ||
1926 | ctrls.ctrl_class = V4L2_CTRL_ID2CLASS(p->id); | |
1927 | ctrls.count = 1; | |
1928 | ctrls.controls = &ctrl; | |
1929 | ctrl.id = p->id; | |
1930 | ctrl.value = p->value; | |
1931 | if (check_ext_ctrls(&ctrls, 1)) { | |
1932 | int ret = ops->vidioc_g_ext_ctrls(file, fh, &ctrls); | |
1933 | ||
1934 | if (ret == 0) | |
1935 | p->value = ctrl.value; | |
1936 | return ret; | |
1937 | } | |
1938 | return -EINVAL; | |
1939 | } | |
1940 | ||
1941 | static int v4l_s_ctrl(const struct v4l2_ioctl_ops *ops, | |
1942 | struct file *file, void *fh, void *arg) | |
1943 | { | |
1944 | struct video_device *vfd = video_devdata(file); | |
1945 | struct v4l2_control *p = arg; | |
7a3ed2d9 HV |
1946 | struct v4l2_fh *vfh = |
1947 | test_bit(V4L2_FL_USES_V4L2_FH, &vfd->flags) ? fh : NULL; | |
efbceecd HV |
1948 | struct v4l2_ext_controls ctrls; |
1949 | struct v4l2_ext_control ctrl; | |
1950 | ||
1951 | if (vfh && vfh->ctrl_handler) | |
1952 | return v4l2_s_ctrl(vfh, vfh->ctrl_handler, p); | |
1953 | if (vfd->ctrl_handler) | |
1954 | return v4l2_s_ctrl(NULL, vfd->ctrl_handler, p); | |
1955 | if (ops->vidioc_s_ctrl) | |
1956 | return ops->vidioc_s_ctrl(file, fh, p); | |
1957 | if (ops->vidioc_s_ext_ctrls == NULL) | |
1958 | return -ENOTTY; | |
1959 | ||
1960 | ctrls.ctrl_class = V4L2_CTRL_ID2CLASS(p->id); | |
1961 | ctrls.count = 1; | |
1962 | ctrls.controls = &ctrl; | |
1963 | ctrl.id = p->id; | |
1964 | ctrl.value = p->value; | |
1965 | if (check_ext_ctrls(&ctrls, 1)) | |
1966 | return ops->vidioc_s_ext_ctrls(file, fh, &ctrls); | |
1967 | return -EINVAL; | |
1968 | } | |
1969 | ||
1970 | static int v4l_g_ext_ctrls(const struct v4l2_ioctl_ops *ops, | |
1971 | struct file *file, void *fh, void *arg) | |
1972 | { | |
1973 | struct video_device *vfd = video_devdata(file); | |
1974 | struct v4l2_ext_controls *p = arg; | |
7a3ed2d9 HV |
1975 | struct v4l2_fh *vfh = |
1976 | test_bit(V4L2_FL_USES_V4L2_FH, &vfd->flags) ? fh : NULL; | |
efbceecd HV |
1977 | |
1978 | p->error_idx = p->count; | |
1979 | if (vfh && vfh->ctrl_handler) | |
1980 | return v4l2_g_ext_ctrls(vfh->ctrl_handler, p); | |
1981 | if (vfd->ctrl_handler) | |
1982 | return v4l2_g_ext_ctrls(vfd->ctrl_handler, p); | |
1983 | if (ops->vidioc_g_ext_ctrls == NULL) | |
1984 | return -ENOTTY; | |
1985 | return check_ext_ctrls(p, 0) ? ops->vidioc_g_ext_ctrls(file, fh, p) : | |
1986 | -EINVAL; | |
1987 | } | |
1988 | ||
1989 | static int v4l_s_ext_ctrls(const struct v4l2_ioctl_ops *ops, | |
1990 | struct file *file, void *fh, void *arg) | |
1991 | { | |
1992 | struct video_device *vfd = video_devdata(file); | |
1993 | struct v4l2_ext_controls *p = arg; | |
7a3ed2d9 HV |
1994 | struct v4l2_fh *vfh = |
1995 | test_bit(V4L2_FL_USES_V4L2_FH, &vfd->flags) ? fh : NULL; | |
efbceecd HV |
1996 | |
1997 | p->error_idx = p->count; | |
1998 | if (vfh && vfh->ctrl_handler) | |
1999 | return v4l2_s_ext_ctrls(vfh, vfh->ctrl_handler, p); | |
2000 | if (vfd->ctrl_handler) | |
2001 | return v4l2_s_ext_ctrls(NULL, vfd->ctrl_handler, p); | |
2002 | if (ops->vidioc_s_ext_ctrls == NULL) | |
2003 | return -ENOTTY; | |
2004 | return check_ext_ctrls(p, 0) ? ops->vidioc_s_ext_ctrls(file, fh, p) : | |
2005 | -EINVAL; | |
2006 | } | |
2007 | ||
2008 | static int v4l_try_ext_ctrls(const struct v4l2_ioctl_ops *ops, | |
2009 | struct file *file, void *fh, void *arg) | |
2010 | { | |
2011 | struct video_device *vfd = video_devdata(file); | |
2012 | struct v4l2_ext_controls *p = arg; | |
7a3ed2d9 HV |
2013 | struct v4l2_fh *vfh = |
2014 | test_bit(V4L2_FL_USES_V4L2_FH, &vfd->flags) ? fh : NULL; | |
efbceecd HV |
2015 | |
2016 | p->error_idx = p->count; | |
2017 | if (vfh && vfh->ctrl_handler) | |
2018 | return v4l2_try_ext_ctrls(vfh->ctrl_handler, p); | |
2019 | if (vfd->ctrl_handler) | |
2020 | return v4l2_try_ext_ctrls(vfd->ctrl_handler, p); | |
2021 | if (ops->vidioc_try_ext_ctrls == NULL) | |
2022 | return -ENOTTY; | |
2023 | return check_ext_ctrls(p, 0) ? ops->vidioc_try_ext_ctrls(file, fh, p) : | |
2024 | -EINVAL; | |
2025 | } | |
2026 | ||
d84f2d94 HV |
2027 | static int v4l_g_crop(const struct v4l2_ioctl_ops *ops, |
2028 | struct file *file, void *fh, void *arg) | |
2029 | { | |
2030 | struct v4l2_crop *p = arg; | |
2031 | struct v4l2_selection s = { | |
2032 | .type = p->type, | |
2033 | }; | |
2034 | int ret; | |
2035 | ||
2036 | if (ops->vidioc_g_crop) | |
2037 | return ops->vidioc_g_crop(file, fh, p); | |
2038 | /* simulate capture crop using selection api */ | |
2039 | ||
2040 | /* crop means compose for output devices */ | |
2041 | if (V4L2_TYPE_IS_OUTPUT(p->type)) | |
2042 | s.target = V4L2_SEL_TGT_COMPOSE_ACTIVE; | |
2043 | else | |
2044 | s.target = V4L2_SEL_TGT_CROP_ACTIVE; | |
2045 | ||
2046 | ret = ops->vidioc_g_selection(file, fh, &s); | |
2047 | ||
2048 | /* copying results to old structure on success */ | |
2049 | if (!ret) | |
2050 | p->c = s.r; | |
2051 | return ret; | |
2052 | } | |
2053 | ||
2054 | static int v4l_s_crop(const struct v4l2_ioctl_ops *ops, | |
2055 | struct file *file, void *fh, void *arg) | |
2056 | { | |
2057 | struct v4l2_crop *p = arg; | |
2058 | struct v4l2_selection s = { | |
2059 | .type = p->type, | |
2060 | .r = p->c, | |
2061 | }; | |
2062 | ||
2063 | if (ops->vidioc_s_crop) | |
2064 | return ops->vidioc_s_crop(file, fh, p); | |
2065 | /* simulate capture crop using selection api */ | |
2066 | ||
2067 | /* crop means compose for output devices */ | |
2068 | if (V4L2_TYPE_IS_OUTPUT(p->type)) | |
2069 | s.target = V4L2_SEL_TGT_COMPOSE_ACTIVE; | |
2070 | else | |
2071 | s.target = V4L2_SEL_TGT_CROP_ACTIVE; | |
2072 | ||
2073 | return ops->vidioc_s_selection(file, fh, &s); | |
2074 | } | |
2075 | ||
2076 | static int v4l_cropcap(const struct v4l2_ioctl_ops *ops, | |
2077 | struct file *file, void *fh, void *arg) | |
2078 | { | |
2079 | struct v4l2_cropcap *p = arg; | |
d84f2d94 | 2080 | |
9409945c HV |
2081 | if (ops->vidioc_g_selection) { |
2082 | struct v4l2_selection s = { .type = p->type }; | |
2083 | int ret; | |
d84f2d94 | 2084 | |
9409945c HV |
2085 | /* obtaining bounds */ |
2086 | if (V4L2_TYPE_IS_OUTPUT(p->type)) | |
2087 | s.target = V4L2_SEL_TGT_COMPOSE_BOUNDS; | |
2088 | else | |
2089 | s.target = V4L2_SEL_TGT_CROP_BOUNDS; | |
d84f2d94 | 2090 | |
9409945c HV |
2091 | ret = ops->vidioc_g_selection(file, fh, &s); |
2092 | if (ret) | |
2093 | return ret; | |
2094 | p->bounds = s.r; | |
d84f2d94 | 2095 | |
9409945c HV |
2096 | /* obtaining defrect */ |
2097 | if (V4L2_TYPE_IS_OUTPUT(p->type)) | |
2098 | s.target = V4L2_SEL_TGT_COMPOSE_DEFAULT; | |
2099 | else | |
2100 | s.target = V4L2_SEL_TGT_CROP_DEFAULT; | |
d84f2d94 | 2101 | |
9409945c HV |
2102 | ret = ops->vidioc_g_selection(file, fh, &s); |
2103 | if (ret) | |
2104 | return ret; | |
2105 | p->defrect = s.r; | |
2106 | } | |
d84f2d94 HV |
2107 | |
2108 | /* setting trivial pixelaspect */ | |
2109 | p->pixelaspect.numerator = 1; | |
2110 | p->pixelaspect.denominator = 1; | |
9409945c HV |
2111 | |
2112 | if (ops->vidioc_cropcap) | |
2113 | return ops->vidioc_cropcap(file, fh, p); | |
2114 | ||
d84f2d94 HV |
2115 | return 0; |
2116 | } | |
2117 | ||
f16f77b0 HV |
2118 | static int v4l_log_status(const struct v4l2_ioctl_ops *ops, |
2119 | struct file *file, void *fh, void *arg) | |
2120 | { | |
2121 | struct video_device *vfd = video_devdata(file); | |
2122 | int ret; | |
2123 | ||
2124 | if (vfd->v4l2_dev) | |
2125 | pr_info("%s: ================= START STATUS =================\n", | |
2126 | vfd->v4l2_dev->name); | |
2127 | ret = ops->vidioc_log_status(file, fh); | |
2128 | if (vfd->v4l2_dev) | |
2129 | pr_info("%s: ================== END STATUS ==================\n", | |
2130 | vfd->v4l2_dev->name); | |
2131 | return ret; | |
2132 | } | |
2133 | ||
2134 | static int v4l_dbg_g_register(const struct v4l2_ioctl_ops *ops, | |
2135 | struct file *file, void *fh, void *arg) | |
2136 | { | |
2137 | #ifdef CONFIG_VIDEO_ADV_DEBUG | |
2138 | struct v4l2_dbg_register *p = arg; | |
79b0c640 HV |
2139 | struct video_device *vfd = video_devdata(file); |
2140 | struct v4l2_subdev *sd; | |
2141 | int idx = 0; | |
f16f77b0 HV |
2142 | |
2143 | if (!capable(CAP_SYS_ADMIN)) | |
2144 | return -EPERM; | |
3eef2510 | 2145 | if (p->match.type == V4L2_CHIP_MATCH_SUBDEV) { |
79b0c640 HV |
2146 | if (vfd->v4l2_dev == NULL) |
2147 | return -EINVAL; | |
3eef2510 HV |
2148 | v4l2_device_for_each_subdev(sd, vfd->v4l2_dev) |
2149 | if (p->match.addr == idx++) | |
79b0c640 | 2150 | return v4l2_subdev_call(sd, core, g_register, p); |
79b0c640 HV |
2151 | return -EINVAL; |
2152 | } | |
191b79b0 HV |
2153 | if (ops->vidioc_g_register && p->match.type == V4L2_CHIP_MATCH_BRIDGE && |
2154 | (ops->vidioc_g_chip_info || p->match.addr == 0)) | |
79b0c640 HV |
2155 | return ops->vidioc_g_register(file, fh, p); |
2156 | return -EINVAL; | |
f16f77b0 HV |
2157 | #else |
2158 | return -ENOTTY; | |
2159 | #endif | |
2160 | } | |
2161 | ||
2162 | static int v4l_dbg_s_register(const struct v4l2_ioctl_ops *ops, | |
2163 | struct file *file, void *fh, void *arg) | |
2164 | { | |
2165 | #ifdef CONFIG_VIDEO_ADV_DEBUG | |
977ba3b1 | 2166 | const struct v4l2_dbg_register *p = arg; |
79b0c640 HV |
2167 | struct video_device *vfd = video_devdata(file); |
2168 | struct v4l2_subdev *sd; | |
2169 | int idx = 0; | |
f16f77b0 HV |
2170 | |
2171 | if (!capable(CAP_SYS_ADMIN)) | |
2172 | return -EPERM; | |
3eef2510 | 2173 | if (p->match.type == V4L2_CHIP_MATCH_SUBDEV) { |
79b0c640 HV |
2174 | if (vfd->v4l2_dev == NULL) |
2175 | return -EINVAL; | |
3eef2510 HV |
2176 | v4l2_device_for_each_subdev(sd, vfd->v4l2_dev) |
2177 | if (p->match.addr == idx++) | |
79b0c640 | 2178 | return v4l2_subdev_call(sd, core, s_register, p); |
79b0c640 HV |
2179 | return -EINVAL; |
2180 | } | |
191b79b0 HV |
2181 | if (ops->vidioc_s_register && p->match.type == V4L2_CHIP_MATCH_BRIDGE && |
2182 | (ops->vidioc_g_chip_info || p->match.addr == 0)) | |
79b0c640 HV |
2183 | return ops->vidioc_s_register(file, fh, p); |
2184 | return -EINVAL; | |
f16f77b0 HV |
2185 | #else |
2186 | return -ENOTTY; | |
2187 | #endif | |
2188 | } | |
2189 | ||
96b03d2a | 2190 | static int v4l_dbg_g_chip_info(const struct v4l2_ioctl_ops *ops, |
79b0c640 HV |
2191 | struct file *file, void *fh, void *arg) |
2192 | { | |
cd634f1b | 2193 | #ifdef CONFIG_VIDEO_ADV_DEBUG |
79b0c640 | 2194 | struct video_device *vfd = video_devdata(file); |
96b03d2a | 2195 | struct v4l2_dbg_chip_info *p = arg; |
79b0c640 HV |
2196 | struct v4l2_subdev *sd; |
2197 | int idx = 0; | |
2198 | ||
2199 | switch (p->match.type) { | |
2200 | case V4L2_CHIP_MATCH_BRIDGE: | |
79b0c640 HV |
2201 | if (ops->vidioc_s_register) |
2202 | p->flags |= V4L2_CHIP_FL_WRITABLE; | |
2203 | if (ops->vidioc_g_register) | |
2204 | p->flags |= V4L2_CHIP_FL_READABLE; | |
1c1d86a1 | 2205 | strlcpy(p->name, vfd->v4l2_dev->name, sizeof(p->name)); |
96b03d2a HV |
2206 | if (ops->vidioc_g_chip_info) |
2207 | return ops->vidioc_g_chip_info(file, fh, arg); | |
0f0fe4b9 HV |
2208 | if (p->match.addr) |
2209 | return -EINVAL; | |
79b0c640 HV |
2210 | return 0; |
2211 | ||
3eef2510 | 2212 | case V4L2_CHIP_MATCH_SUBDEV: |
79b0c640 HV |
2213 | if (vfd->v4l2_dev == NULL) |
2214 | break; | |
2215 | v4l2_device_for_each_subdev(sd, vfd->v4l2_dev) { | |
3eef2510 HV |
2216 | if (p->match.addr != idx++) |
2217 | continue; | |
2218 | if (sd->ops->core && sd->ops->core->s_register) | |
2219 | p->flags |= V4L2_CHIP_FL_WRITABLE; | |
2220 | if (sd->ops->core && sd->ops->core->g_register) | |
2221 | p->flags |= V4L2_CHIP_FL_READABLE; | |
2222 | strlcpy(p->name, sd->name, sizeof(p->name)); | |
2223 | return 0; | |
79b0c640 HV |
2224 | } |
2225 | break; | |
2226 | } | |
2227 | return -EINVAL; | |
cd634f1b HV |
2228 | #else |
2229 | return -ENOTTY; | |
2230 | #endif | |
79b0c640 HV |
2231 | } |
2232 | ||
458aa4a6 HV |
2233 | static int v4l_dqevent(const struct v4l2_ioctl_ops *ops, |
2234 | struct file *file, void *fh, void *arg) | |
2235 | { | |
2236 | return v4l2_event_dequeue(fh, arg, file->f_flags & O_NONBLOCK); | |
2237 | } | |
2238 | ||
2239 | static int v4l_subscribe_event(const struct v4l2_ioctl_ops *ops, | |
2240 | struct file *file, void *fh, void *arg) | |
2241 | { | |
2242 | return ops->vidioc_subscribe_event(fh, arg); | |
2243 | } | |
2244 | ||
2245 | static int v4l_unsubscribe_event(const struct v4l2_ioctl_ops *ops, | |
2246 | struct file *file, void *fh, void *arg) | |
2247 | { | |
2248 | return ops->vidioc_unsubscribe_event(fh, arg); | |
2249 | } | |
2250 | ||
2251 | static int v4l_g_sliced_vbi_cap(const struct v4l2_ioctl_ops *ops, | |
2252 | struct file *file, void *fh, void *arg) | |
2253 | { | |
2254 | struct v4l2_sliced_vbi_cap *p = arg; | |
4b20259f HV |
2255 | int ret = check_fmt(file, p->type); |
2256 | ||
2257 | if (ret) | |
2258 | return ret; | |
458aa4a6 HV |
2259 | |
2260 | /* Clear up to type, everything after type is zeroed already */ | |
2261 | memset(p, 0, offsetof(struct v4l2_sliced_vbi_cap, type)); | |
2262 | ||
2263 | return ops->vidioc_g_sliced_vbi_cap(file, fh, p); | |
2264 | } | |
2265 | ||
82b655bf HV |
2266 | static int v4l_enum_freq_bands(const struct v4l2_ioctl_ops *ops, |
2267 | struct file *file, void *fh, void *arg) | |
2268 | { | |
2269 | struct video_device *vfd = video_devdata(file); | |
2270 | struct v4l2_frequency_band *p = arg; | |
2271 | enum v4l2_tuner_type type; | |
2272 | int err; | |
2273 | ||
84099a28 AP |
2274 | if (vfd->vfl_type == VFL_TYPE_SDR) { |
2275 | if (p->type != V4L2_TUNER_ADC && p->type != V4L2_TUNER_RF) | |
2276 | return -EINVAL; | |
2277 | type = p->type; | |
2278 | } else { | |
2279 | type = (vfd->vfl_type == VFL_TYPE_RADIO) ? | |
2280 | V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV; | |
2281 | if (type != p->type) | |
2282 | return -EINVAL; | |
2283 | } | |
a7f404af HV |
2284 | if (ops->vidioc_enum_freq_bands) { |
2285 | err = ops->vidioc_enum_freq_bands(file, fh, p); | |
2286 | if (err != -ENOTTY) | |
2287 | return err; | |
2288 | } | |
73f35418 | 2289 | if (is_valid_ioctl(vfd, VIDIOC_G_TUNER)) { |
82b655bf HV |
2290 | struct v4l2_tuner t = { |
2291 | .index = p->tuner, | |
2292 | .type = type, | |
2293 | }; | |
2294 | ||
aa4d9b53 HV |
2295 | if (p->index) |
2296 | return -EINVAL; | |
82b655bf HV |
2297 | err = ops->vidioc_g_tuner(file, fh, &t); |
2298 | if (err) | |
2299 | return err; | |
2300 | p->capability = t.capability | V4L2_TUNER_CAP_FREQ_BANDS; | |
2301 | p->rangelow = t.rangelow; | |
2302 | p->rangehigh = t.rangehigh; | |
2303 | p->modulation = (type == V4L2_TUNER_RADIO) ? | |
2304 | V4L2_BAND_MODULATION_FM : V4L2_BAND_MODULATION_VSB; | |
2305 | return 0; | |
2306 | } | |
73f35418 | 2307 | if (is_valid_ioctl(vfd, VIDIOC_G_MODULATOR)) { |
82b655bf HV |
2308 | struct v4l2_modulator m = { |
2309 | .index = p->tuner, | |
2310 | }; | |
2311 | ||
2312 | if (type != V4L2_TUNER_RADIO) | |
2313 | return -EINVAL; | |
aa4d9b53 HV |
2314 | if (p->index) |
2315 | return -EINVAL; | |
82b655bf HV |
2316 | err = ops->vidioc_g_modulator(file, fh, &m); |
2317 | if (err) | |
2318 | return err; | |
2319 | p->capability = m.capability | V4L2_TUNER_CAP_FREQ_BANDS; | |
2320 | p->rangelow = m.rangelow; | |
2321 | p->rangehigh = m.rangehigh; | |
2322 | p->modulation = (type == V4L2_TUNER_RADIO) ? | |
2323 | V4L2_BAND_MODULATION_FM : V4L2_BAND_MODULATION_VSB; | |
2324 | return 0; | |
2325 | } | |
2326 | return -ENOTTY; | |
2327 | } | |
2328 | ||
4839e6c2 HV |
2329 | struct v4l2_ioctl_info { |
2330 | unsigned int ioctl; | |
27cd2aba | 2331 | u32 flags; |
4839e6c2 | 2332 | const char * const name; |
86748f35 HV |
2333 | union { |
2334 | u32 offset; | |
2335 | int (*func)(const struct v4l2_ioctl_ops *ops, | |
2336 | struct file *file, void *fh, void *p); | |
26ddcbcc | 2337 | } u; |
86748f35 | 2338 | void (*debug)(const void *arg, bool write_only); |
4839e6c2 HV |
2339 | }; |
2340 | ||
2341 | /* This control needs a priority check */ | |
2342 | #define INFO_FL_PRIO (1 << 0) | |
2343 | /* This control can be valid if the filehandle passes a control handler. */ | |
2344 | #define INFO_FL_CTRL (1 << 1) | |
86748f35 HV |
2345 | /* This is a standard ioctl, no need for special code */ |
2346 | #define INFO_FL_STD (1 << 2) | |
2347 | /* This is ioctl has its own function */ | |
2348 | #define INFO_FL_FUNC (1 << 3) | |
5a5adf6b HV |
2349 | /* Queuing ioctl */ |
2350 | #define INFO_FL_QUEUE (1 << 4) | |
27cd2aba HV |
2351 | /* Zero struct from after the field to the end */ |
2352 | #define INFO_FL_CLEAR(v4l2_struct, field) \ | |
2353 | ((offsetof(struct v4l2_struct, field) + \ | |
2354 | sizeof(((struct v4l2_struct *)0)->field)) << 16) | |
2355 | #define INFO_FL_CLEAR_MASK (_IOC_SIZEMASK << 16) | |
4839e6c2 | 2356 | |
86748f35 HV |
2357 | #define IOCTL_INFO_STD(_ioctl, _vidioc, _debug, _flags) \ |
2358 | [_IOC_NR(_ioctl)] = { \ | |
2359 | .ioctl = _ioctl, \ | |
2360 | .flags = _flags | INFO_FL_STD, \ | |
2361 | .name = #_ioctl, \ | |
26ddcbcc | 2362 | .u.offset = offsetof(struct v4l2_ioctl_ops, _vidioc), \ |
86748f35 HV |
2363 | .debug = _debug, \ |
2364 | } | |
2365 | ||
2366 | #define IOCTL_INFO_FNC(_ioctl, _func, _debug, _flags) \ | |
2367 | [_IOC_NR(_ioctl)] = { \ | |
2368 | .ioctl = _ioctl, \ | |
2369 | .flags = _flags | INFO_FL_FUNC, \ | |
2370 | .name = #_ioctl, \ | |
26ddcbcc | 2371 | .u.func = _func, \ |
86748f35 HV |
2372 | .debug = _debug, \ |
2373 | } | |
2374 | ||
4839e6c2 | 2375 | static struct v4l2_ioctl_info v4l2_ioctls[] = { |
59076122 | 2376 | IOCTL_INFO_FNC(VIDIOC_QUERYCAP, v4l_querycap, v4l_print_querycap, 0), |
be6c64e4 | 2377 | IOCTL_INFO_FNC(VIDIOC_ENUM_FMT, v4l_enum_fmt, v4l_print_fmtdesc, INFO_FL_CLEAR(v4l2_fmtdesc, type)), |
e5ce558a | 2378 | IOCTL_INFO_FNC(VIDIOC_G_FMT, v4l_g_fmt, v4l_print_format, 0), |
be6c64e4 | 2379 | IOCTL_INFO_FNC(VIDIOC_S_FMT, v4l_s_fmt, v4l_print_format, INFO_FL_PRIO), |
5a5adf6b HV |
2380 | IOCTL_INFO_FNC(VIDIOC_REQBUFS, v4l_reqbufs, v4l_print_requestbuffers, INFO_FL_PRIO | INFO_FL_QUEUE), |
2381 | IOCTL_INFO_FNC(VIDIOC_QUERYBUF, v4l_querybuf, v4l_print_buffer, INFO_FL_QUEUE | INFO_FL_CLEAR(v4l2_buffer, length)), | |
be6c64e4 HV |
2382 | IOCTL_INFO_STD(VIDIOC_G_FBUF, vidioc_g_fbuf, v4l_print_framebuffer, 0), |
2383 | IOCTL_INFO_STD(VIDIOC_S_FBUF, vidioc_s_fbuf, v4l_print_framebuffer, INFO_FL_PRIO), | |
737c097b | 2384 | IOCTL_INFO_FNC(VIDIOC_OVERLAY, v4l_overlay, v4l_print_u32, INFO_FL_PRIO), |
5a5adf6b | 2385 | IOCTL_INFO_FNC(VIDIOC_QBUF, v4l_qbuf, v4l_print_buffer, INFO_FL_QUEUE), |
b799d09a | 2386 | IOCTL_INFO_STD(VIDIOC_EXPBUF, vidioc_expbuf, v4l_print_exportbuffer, INFO_FL_QUEUE | INFO_FL_CLEAR(v4l2_exportbuffer, flags)), |
5a5adf6b HV |
2387 | IOCTL_INFO_FNC(VIDIOC_DQBUF, v4l_dqbuf, v4l_print_buffer, INFO_FL_QUEUE), |
2388 | IOCTL_INFO_FNC(VIDIOC_STREAMON, v4l_streamon, v4l_print_buftype, INFO_FL_PRIO | INFO_FL_QUEUE), | |
2389 | IOCTL_INFO_FNC(VIDIOC_STREAMOFF, v4l_streamoff, v4l_print_buftype, INFO_FL_PRIO | INFO_FL_QUEUE), | |
eb3728ed HV |
2390 | IOCTL_INFO_FNC(VIDIOC_G_PARM, v4l_g_parm, v4l_print_streamparm, INFO_FL_CLEAR(v4l2_streamparm, type)), |
2391 | IOCTL_INFO_FNC(VIDIOC_S_PARM, v4l_s_parm, v4l_print_streamparm, INFO_FL_PRIO), | |
ca371575 | 2392 | IOCTL_INFO_STD(VIDIOC_G_STD, vidioc_g_std, v4l_print_std, 0), |
4b1e2e4d HV |
2393 | IOCTL_INFO_FNC(VIDIOC_S_STD, v4l_s_std, v4l_print_std, INFO_FL_PRIO), |
2394 | IOCTL_INFO_FNC(VIDIOC_ENUMSTD, v4l_enumstd, v4l_print_standard, INFO_FL_CLEAR(v4l2_standard, index)), | |
59076122 | 2395 | IOCTL_INFO_FNC(VIDIOC_ENUMINPUT, v4l_enuminput, v4l_print_enuminput, INFO_FL_CLEAR(v4l2_input, index)), |
efbceecd HV |
2396 | IOCTL_INFO_FNC(VIDIOC_G_CTRL, v4l_g_ctrl, v4l_print_control, INFO_FL_CTRL | INFO_FL_CLEAR(v4l2_control, id)), |
2397 | IOCTL_INFO_FNC(VIDIOC_S_CTRL, v4l_s_ctrl, v4l_print_control, INFO_FL_PRIO | INFO_FL_CTRL), | |
4b1e2e4d HV |
2398 | IOCTL_INFO_FNC(VIDIOC_G_TUNER, v4l_g_tuner, v4l_print_tuner, INFO_FL_CLEAR(v4l2_tuner, index)), |
2399 | IOCTL_INFO_FNC(VIDIOC_S_TUNER, v4l_s_tuner, v4l_print_tuner, INFO_FL_PRIO), | |
59076122 HV |
2400 | IOCTL_INFO_STD(VIDIOC_G_AUDIO, vidioc_g_audio, v4l_print_audio, 0), |
2401 | IOCTL_INFO_STD(VIDIOC_S_AUDIO, vidioc_s_audio, v4l_print_audio, INFO_FL_PRIO), | |
efbceecd HV |
2402 | IOCTL_INFO_FNC(VIDIOC_QUERYCTRL, v4l_queryctrl, v4l_print_queryctrl, INFO_FL_CTRL | INFO_FL_CLEAR(v4l2_queryctrl, id)), |
2403 | IOCTL_INFO_FNC(VIDIOC_QUERYMENU, v4l_querymenu, v4l_print_querymenu, INFO_FL_CTRL | INFO_FL_CLEAR(v4l2_querymenu, index)), | |
59076122 HV |
2404 | IOCTL_INFO_STD(VIDIOC_G_INPUT, vidioc_g_input, v4l_print_u32, 0), |
2405 | IOCTL_INFO_FNC(VIDIOC_S_INPUT, v4l_s_input, v4l_print_u32, INFO_FL_PRIO), | |
f9402a94 HV |
2406 | IOCTL_INFO_STD(VIDIOC_G_EDID, vidioc_g_edid, v4l_print_edid, 0), |
2407 | IOCTL_INFO_STD(VIDIOC_S_EDID, vidioc_s_edid, v4l_print_edid, INFO_FL_PRIO), | |
59076122 HV |
2408 | IOCTL_INFO_STD(VIDIOC_G_OUTPUT, vidioc_g_output, v4l_print_u32, 0), |
2409 | IOCTL_INFO_FNC(VIDIOC_S_OUTPUT, v4l_s_output, v4l_print_u32, INFO_FL_PRIO), | |
2410 | IOCTL_INFO_FNC(VIDIOC_ENUMOUTPUT, v4l_enumoutput, v4l_print_enumoutput, INFO_FL_CLEAR(v4l2_output, index)), | |
2411 | IOCTL_INFO_STD(VIDIOC_G_AUDOUT, vidioc_g_audout, v4l_print_audioout, 0), | |
2412 | IOCTL_INFO_STD(VIDIOC_S_AUDOUT, vidioc_s_audout, v4l_print_audioout, INFO_FL_PRIO), | |
82b655bf | 2413 | IOCTL_INFO_FNC(VIDIOC_G_MODULATOR, v4l_g_modulator, v4l_print_modulator, INFO_FL_CLEAR(v4l2_modulator, index)), |
4b1e2e4d HV |
2414 | IOCTL_INFO_STD(VIDIOC_S_MODULATOR, vidioc_s_modulator, v4l_print_modulator, INFO_FL_PRIO), |
2415 | IOCTL_INFO_FNC(VIDIOC_G_FREQUENCY, v4l_g_frequency, v4l_print_frequency, INFO_FL_CLEAR(v4l2_frequency, tuner)), | |
2416 | IOCTL_INFO_FNC(VIDIOC_S_FREQUENCY, v4l_s_frequency, v4l_print_frequency, INFO_FL_PRIO), | |
d84f2d94 HV |
2417 | IOCTL_INFO_FNC(VIDIOC_CROPCAP, v4l_cropcap, v4l_print_cropcap, INFO_FL_CLEAR(v4l2_cropcap, type)), |
2418 | IOCTL_INFO_FNC(VIDIOC_G_CROP, v4l_g_crop, v4l_print_crop, INFO_FL_CLEAR(v4l2_crop, type)), | |
2419 | IOCTL_INFO_FNC(VIDIOC_S_CROP, v4l_s_crop, v4l_print_crop, INFO_FL_PRIO), | |
865c4642 HV |
2420 | IOCTL_INFO_STD(VIDIOC_G_SELECTION, vidioc_g_selection, v4l_print_selection, INFO_FL_CLEAR(v4l2_selection, r)), |
2421 | IOCTL_INFO_STD(VIDIOC_S_SELECTION, vidioc_s_selection, v4l_print_selection, INFO_FL_PRIO | INFO_FL_CLEAR(v4l2_selection, r)), | |
d806f2df HV |
2422 | IOCTL_INFO_STD(VIDIOC_G_JPEGCOMP, vidioc_g_jpegcomp, v4l_print_jpegcompression, 0), |
2423 | IOCTL_INFO_STD(VIDIOC_S_JPEGCOMP, vidioc_s_jpegcomp, v4l_print_jpegcompression, INFO_FL_PRIO), | |
4b1e2e4d | 2424 | IOCTL_INFO_FNC(VIDIOC_QUERYSTD, v4l_querystd, v4l_print_std, 0), |
be6c64e4 | 2425 | IOCTL_INFO_FNC(VIDIOC_TRY_FMT, v4l_try_fmt, v4l_print_format, 0), |
59076122 HV |
2426 | IOCTL_INFO_STD(VIDIOC_ENUMAUDIO, vidioc_enumaudio, v4l_print_audio, INFO_FL_CLEAR(v4l2_audio, index)), |
2427 | IOCTL_INFO_STD(VIDIOC_ENUMAUDOUT, vidioc_enumaudout, v4l_print_audioout, INFO_FL_CLEAR(v4l2_audioout, index)), | |
d0547cba HV |
2428 | IOCTL_INFO_FNC(VIDIOC_G_PRIORITY, v4l_g_priority, v4l_print_u32, 0), |
2429 | IOCTL_INFO_FNC(VIDIOC_S_PRIORITY, v4l_s_priority, v4l_print_u32, INFO_FL_PRIO), | |
458aa4a6 | 2430 | 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 | 2431 | IOCTL_INFO_FNC(VIDIOC_LOG_STATUS, v4l_log_status, v4l_print_newline, 0), |
efbceecd HV |
2432 | IOCTL_INFO_FNC(VIDIOC_G_EXT_CTRLS, v4l_g_ext_ctrls, v4l_print_ext_controls, INFO_FL_CTRL), |
2433 | IOCTL_INFO_FNC(VIDIOC_S_EXT_CTRLS, v4l_s_ext_ctrls, v4l_print_ext_controls, INFO_FL_PRIO | INFO_FL_CTRL), | |
9bc31633 | 2434 | IOCTL_INFO_FNC(VIDIOC_TRY_EXT_CTRLS, v4l_try_ext_ctrls, v4l_print_ext_controls, INFO_FL_CTRL), |
458aa4a6 HV |
2435 | IOCTL_INFO_STD(VIDIOC_ENUM_FRAMESIZES, vidioc_enum_framesizes, v4l_print_frmsizeenum, INFO_FL_CLEAR(v4l2_frmsizeenum, pixel_format)), |
2436 | IOCTL_INFO_STD(VIDIOC_ENUM_FRAMEINTERVALS, vidioc_enum_frameintervals, v4l_print_frmivalenum, INFO_FL_CLEAR(v4l2_frmivalenum, height)), | |
d806f2df HV |
2437 | IOCTL_INFO_STD(VIDIOC_G_ENC_INDEX, vidioc_g_enc_index, v4l_print_enc_idx, 0), |
2438 | IOCTL_INFO_STD(VIDIOC_ENCODER_CMD, vidioc_encoder_cmd, v4l_print_encoder_cmd, INFO_FL_PRIO | INFO_FL_CLEAR(v4l2_encoder_cmd, flags)), | |
2439 | IOCTL_INFO_STD(VIDIOC_TRY_ENCODER_CMD, vidioc_try_encoder_cmd, v4l_print_encoder_cmd, INFO_FL_CLEAR(v4l2_encoder_cmd, flags)), | |
2440 | IOCTL_INFO_STD(VIDIOC_DECODER_CMD, vidioc_decoder_cmd, v4l_print_decoder_cmd, INFO_FL_PRIO), | |
2441 | IOCTL_INFO_STD(VIDIOC_TRY_DECODER_CMD, vidioc_try_decoder_cmd, v4l_print_decoder_cmd, 0), | |
f16f77b0 HV |
2442 | IOCTL_INFO_FNC(VIDIOC_DBG_S_REGISTER, v4l_dbg_s_register, v4l_print_dbg_register, 0), |
2443 | IOCTL_INFO_FNC(VIDIOC_DBG_G_REGISTER, v4l_dbg_g_register, v4l_print_dbg_register, 0), | |
4b1e2e4d | 2444 | IOCTL_INFO_FNC(VIDIOC_S_HW_FREQ_SEEK, v4l_s_hw_freq_seek, v4l_print_hw_freq_seek, INFO_FL_PRIO), |
efc626b0 HV |
2445 | IOCTL_INFO_STD(VIDIOC_S_DV_TIMINGS, vidioc_s_dv_timings, v4l_print_dv_timings, INFO_FL_PRIO), |
2446 | IOCTL_INFO_STD(VIDIOC_G_DV_TIMINGS, vidioc_g_dv_timings, v4l_print_dv_timings, 0), | |
458aa4a6 HV |
2447 | IOCTL_INFO_FNC(VIDIOC_DQEVENT, v4l_dqevent, v4l_print_event, 0), |
2448 | IOCTL_INFO_FNC(VIDIOC_SUBSCRIBE_EVENT, v4l_subscribe_event, v4l_print_event_subscription, 0), | |
2449 | IOCTL_INFO_FNC(VIDIOC_UNSUBSCRIBE_EVENT, v4l_unsubscribe_event, v4l_print_event_subscription, 0), | |
5a5adf6b HV |
2450 | IOCTL_INFO_FNC(VIDIOC_CREATE_BUFS, v4l_create_bufs, v4l_print_create_buffers, INFO_FL_PRIO | INFO_FL_QUEUE), |
2451 | IOCTL_INFO_FNC(VIDIOC_PREPARE_BUF, v4l_prepare_buf, v4l_print_buffer, INFO_FL_QUEUE), | |
efc626b0 HV |
2452 | IOCTL_INFO_STD(VIDIOC_ENUM_DV_TIMINGS, vidioc_enum_dv_timings, v4l_print_enum_dv_timings, 0), |
2453 | IOCTL_INFO_STD(VIDIOC_QUERY_DV_TIMINGS, vidioc_query_dv_timings, v4l_print_dv_timings, 0), | |
a1acb8f9 | 2454 | 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 | 2455 | IOCTL_INFO_FNC(VIDIOC_ENUM_FREQ_BANDS, v4l_enum_freq_bands, v4l_print_freq_band, 0), |
96b03d2a | 2456 | 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 | 2457 | 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 |
2458 | }; |
2459 | #define V4L2_IOCTLS ARRAY_SIZE(v4l2_ioctls) | |
2460 | ||
2461 | bool v4l2_is_known_ioctl(unsigned int cmd) | |
2462 | { | |
2463 | if (_IOC_NR(cmd) >= V4L2_IOCTLS) | |
2464 | return false; | |
2465 | return v4l2_ioctls[_IOC_NR(cmd)].ioctl == cmd; | |
2466 | } | |
2467 | ||
5a5adf6b HV |
2468 | struct mutex *v4l2_ioctl_get_lock(struct video_device *vdev, unsigned cmd) |
2469 | { | |
2470 | if (_IOC_NR(cmd) >= V4L2_IOCTLS) | |
2471 | return vdev->lock; | |
2472 | if (test_bit(_IOC_NR(cmd), vdev->disable_locking)) | |
2473 | return NULL; | |
2474 | if (vdev->queue && vdev->queue->lock && | |
2475 | (v4l2_ioctls[_IOC_NR(cmd)].flags & INFO_FL_QUEUE)) | |
2476 | return vdev->queue->lock; | |
2477 | return vdev->lock; | |
2478 | } | |
2479 | ||
4839e6c2 HV |
2480 | /* Common ioctl debug function. This function can be used by |
2481 | external ioctl messages as well as internal V4L ioctl */ | |
4a085168 | 2482 | void v4l_printk_ioctl(const char *prefix, unsigned int cmd) |
4839e6c2 | 2483 | { |
86748f35 | 2484 | const char *dir, *type; |
4839e6c2 | 2485 | |
4a085168 HV |
2486 | if (prefix) |
2487 | printk(KERN_DEBUG "%s: ", prefix); | |
2488 | ||
4839e6c2 HV |
2489 | switch (_IOC_TYPE(cmd)) { |
2490 | case 'd': | |
2491 | type = "v4l2_int"; | |
2492 | break; | |
2493 | case 'V': | |
2494 | if (_IOC_NR(cmd) >= V4L2_IOCTLS) { | |
2495 | type = "v4l2"; | |
2496 | break; | |
2497 | } | |
86748f35 | 2498 | pr_cont("%s", v4l2_ioctls[_IOC_NR(cmd)].name); |
4839e6c2 HV |
2499 | return; |
2500 | default: | |
2501 | type = "unknown"; | |
86748f35 | 2502 | break; |
4839e6c2 HV |
2503 | } |
2504 | ||
2505 | switch (_IOC_DIR(cmd)) { | |
2506 | case _IOC_NONE: dir = "--"; break; | |
2507 | case _IOC_READ: dir = "r-"; break; | |
2508 | case _IOC_WRITE: dir = "-w"; break; | |
2509 | case _IOC_READ | _IOC_WRITE: dir = "rw"; break; | |
2510 | default: dir = "*ERR*"; break; | |
2511 | } | |
86748f35 | 2512 | pr_cont("%s ioctl '%c', dir=%s, #%d (0x%08x)", |
4839e6c2 HV |
2513 | type, _IOC_TYPE(cmd), dir, _IOC_NR(cmd), cmd); |
2514 | } | |
2515 | EXPORT_SYMBOL(v4l_printk_ioctl); | |
2516 | ||
069b7479 | 2517 | static long __video_do_ioctl(struct file *file, |
35ea11ff HV |
2518 | unsigned int cmd, void *arg) |
2519 | { | |
2520 | struct video_device *vfd = video_devdata(file); | |
a399810c | 2521 | const struct v4l2_ioctl_ops *ops = vfd->ioctl_ops; |
86748f35 HV |
2522 | bool write_only = false; |
2523 | struct v4l2_ioctl_info default_info; | |
2524 | const struct v4l2_ioctl_info *info; | |
d5fbf32f | 2525 | void *fh = file->private_data; |
99cd47bc | 2526 | struct v4l2_fh *vfh = NULL; |
17028cdb | 2527 | int dev_debug = vfd->dev_debug; |
9190d191 | 2528 | long ret = -ENOTTY; |
35ea11ff | 2529 | |
6a717883 | 2530 | if (ops == NULL) { |
4a085168 HV |
2531 | pr_warn("%s: has no ioctl_ops.\n", |
2532 | video_device_node_name(vfd)); | |
9190d191 | 2533 | return ret; |
6a717883 HV |
2534 | } |
2535 | ||
b7284bb0 | 2536 | if (test_bit(V4L2_FL_USES_V4L2_FH, &vfd->flags)) |
99cd47bc HV |
2537 | vfh = file->private_data; |
2538 | ||
48ea0be0 | 2539 | if (v4l2_is_known_ioctl(cmd)) { |
86748f35 | 2540 | info = &v4l2_ioctls[_IOC_NR(cmd)]; |
48ea0be0 HV |
2541 | |
2542 | if (!test_bit(_IOC_NR(cmd), vfd->valid_ioctls) && | |
2543 | !((info->flags & INFO_FL_CTRL) && vfh && vfh->ctrl_handler)) | |
86748f35 | 2544 | goto done; |
4b902fec | 2545 | |
b7284bb0 | 2546 | if (vfh && (info->flags & INFO_FL_PRIO)) { |
4b902fec HV |
2547 | ret = v4l2_prio_check(vfd->prio, vfh->prio); |
2548 | if (ret) | |
86748f35 | 2549 | goto done; |
4b902fec | 2550 | } |
86748f35 HV |
2551 | } else { |
2552 | default_info.ioctl = cmd; | |
2553 | default_info.flags = 0; | |
f18d8e07 | 2554 | default_info.debug = v4l_print_default; |
86748f35 | 2555 | info = &default_info; |
48ea0be0 HV |
2556 | } |
2557 | ||
86748f35 | 2558 | write_only = _IOC_DIR(cmd) == _IOC_WRITE; |
86748f35 HV |
2559 | if (info->flags & INFO_FL_STD) { |
2560 | typedef int (*vidioc_op)(struct file *file, void *fh, void *p); | |
2561 | const void *p = vfd->ioctl_ops; | |
26ddcbcc | 2562 | const vidioc_op *vidioc = p + info->u.offset; |
86748f35 HV |
2563 | |
2564 | ret = (*vidioc)(file, fh, arg); | |
86748f35 | 2565 | } else if (info->flags & INFO_FL_FUNC) { |
26ddcbcc | 2566 | ret = info->u.func(ops, file, fh, arg); |
f18d8e07 HV |
2567 | } else if (!ops->vidioc_default) { |
2568 | ret = -ENOTTY; | |
2569 | } else { | |
2570 | ret = ops->vidioc_default(file, fh, | |
b7284bb0 | 2571 | vfh ? v4l2_prio_check(vfd->prio, vfh->prio) >= 0 : 0, |
f18d8e07 | 2572 | cmd, arg); |
48ea0be0 | 2573 | } |
99cd47bc | 2574 | |
86748f35 | 2575 | done: |
17028cdb HV |
2576 | if (dev_debug & (V4L2_DEV_DEBUG_IOCTL | V4L2_DEV_DEBUG_IOCTL_ARG)) { |
2577 | if (!(dev_debug & V4L2_DEV_DEBUG_STREAMING) && | |
2578 | (cmd == VIDIOC_QBUF || cmd == VIDIOC_DQBUF)) | |
2579 | return ret; | |
2580 | ||
4a085168 | 2581 | v4l_printk_ioctl(video_device_node_name(vfd), cmd); |
86748f35 | 2582 | if (ret < 0) |
505d04bd | 2583 | pr_cont(": error %ld", ret); |
17028cdb | 2584 | if (!(dev_debug & V4L2_DEV_DEBUG_IOCTL_ARG)) |
86748f35 | 2585 | pr_cont("\n"); |
86748f35 HV |
2586 | else if (_IOC_DIR(cmd) == _IOC_NONE) |
2587 | info->debug(arg, write_only); | |
2588 | else { | |
2589 | pr_cont(": "); | |
2590 | info->debug(arg, write_only); | |
35ea11ff HV |
2591 | } |
2592 | } | |
2593 | ||
2594 | return ret; | |
2595 | } | |
2596 | ||
d14e6d76 | 2597 | static int check_array_args(unsigned int cmd, void *parg, size_t *array_size, |
ba2d35c1 | 2598 | void __user **user_ptr, void ***kernel_ptr) |
d14e6d76 PO |
2599 | { |
2600 | int ret = 0; | |
2601 | ||
2602 | switch (cmd) { | |
96b1a702 | 2603 | case VIDIOC_PREPARE_BUF: |
d14e6d76 PO |
2604 | case VIDIOC_QUERYBUF: |
2605 | case VIDIOC_QBUF: | |
2606 | case VIDIOC_DQBUF: { | |
2607 | struct v4l2_buffer *buf = parg; | |
2608 | ||
2609 | if (V4L2_TYPE_IS_MULTIPLANAR(buf->type) && buf->length > 0) { | |
2610 | if (buf->length > VIDEO_MAX_PLANES) { | |
2611 | ret = -EINVAL; | |
2612 | break; | |
2613 | } | |
2614 | *user_ptr = (void __user *)buf->m.planes; | |
ba2d35c1 | 2615 | *kernel_ptr = (void **)&buf->m.planes; |
d14e6d76 PO |
2616 | *array_size = sizeof(struct v4l2_plane) * buf->length; |
2617 | ret = 1; | |
2618 | } | |
2619 | break; | |
2620 | } | |
2621 | ||
dd519bb3 HV |
2622 | case VIDIOC_G_EDID: |
2623 | case VIDIOC_S_EDID: { | |
2624 | struct v4l2_edid *edid = parg; | |
ed45ce2c HV |
2625 | |
2626 | if (edid->blocks) { | |
1b8b10cc HV |
2627 | if (edid->blocks > 256) { |
2628 | ret = -EINVAL; | |
2629 | break; | |
2630 | } | |
ed45ce2c | 2631 | *user_ptr = (void __user *)edid->edid; |
ba2d35c1 | 2632 | *kernel_ptr = (void **)&edid->edid; |
ed45ce2c HV |
2633 | *array_size = edid->blocks * 128; |
2634 | ret = 1; | |
2635 | } | |
2636 | break; | |
2637 | } | |
2638 | ||
d14e6d76 PO |
2639 | case VIDIOC_S_EXT_CTRLS: |
2640 | case VIDIOC_G_EXT_CTRLS: | |
2641 | case VIDIOC_TRY_EXT_CTRLS: { | |
2642 | struct v4l2_ext_controls *ctrls = parg; | |
2643 | ||
2644 | if (ctrls->count != 0) { | |
6c06108b DC |
2645 | if (ctrls->count > V4L2_CID_MAX_CTRLS) { |
2646 | ret = -EINVAL; | |
2647 | break; | |
2648 | } | |
d14e6d76 | 2649 | *user_ptr = (void __user *)ctrls->controls; |
ba2d35c1 | 2650 | *kernel_ptr = (void **)&ctrls->controls; |
d14e6d76 PO |
2651 | *array_size = sizeof(struct v4l2_ext_control) |
2652 | * ctrls->count; | |
2653 | ret = 1; | |
2654 | } | |
2655 | break; | |
2656 | } | |
2657 | } | |
2658 | ||
2659 | return ret; | |
2660 | } | |
2661 | ||
fc0a8079 LP |
2662 | long |
2663 | video_usercopy(struct file *file, unsigned int cmd, unsigned long arg, | |
2664 | v4l2_kioctl func) | |
35ea11ff HV |
2665 | { |
2666 | char sbuf[128]; | |
2667 | void *mbuf = NULL; | |
1d94aa36 | 2668 | void *parg = (void *)arg; |
069b7479 | 2669 | long err = -EINVAL; |
d14e6d76 PO |
2670 | bool has_array_args; |
2671 | size_t array_size = 0; | |
35ea11ff | 2672 | void __user *user_ptr = NULL; |
d14e6d76 | 2673 | void **kernel_ptr = NULL; |
35ea11ff | 2674 | |
35ea11ff | 2675 | /* Copy arguments into temp kernel buffer */ |
337f9d20 | 2676 | if (_IOC_DIR(cmd) != _IOC_NONE) { |
35ea11ff HV |
2677 | if (_IOC_SIZE(cmd) <= sizeof(sbuf)) { |
2678 | parg = sbuf; | |
2679 | } else { | |
2680 | /* too big to allocate from stack */ | |
2681 | mbuf = kmalloc(_IOC_SIZE(cmd), GFP_KERNEL); | |
2682 | if (NULL == mbuf) | |
2683 | return -ENOMEM; | |
2684 | parg = mbuf; | |
2685 | } | |
2686 | ||
2687 | err = -EFAULT; | |
19c96e4b | 2688 | if (_IOC_DIR(cmd) & _IOC_WRITE) { |
27cd2aba HV |
2689 | unsigned int n = _IOC_SIZE(cmd); |
2690 | ||
2691 | /* | |
2692 | * In some cases, only a few fields are used as input, | |
2693 | * i.e. when the app sets "index" and then the driver | |
2694 | * fills in the rest of the structure for the thing | |
2695 | * with that index. We only need to copy up the first | |
2696 | * non-input field. | |
2697 | */ | |
2698 | if (v4l2_is_known_ioctl(cmd)) { | |
2699 | u32 flags = v4l2_ioctls[_IOC_NR(cmd)].flags; | |
2700 | if (flags & INFO_FL_CLEAR_MASK) | |
2701 | n = (flags & INFO_FL_CLEAR_MASK) >> 16; | |
2702 | } | |
19c96e4b TP |
2703 | |
2704 | if (copy_from_user(parg, (void __user *)arg, n)) | |
35ea11ff | 2705 | goto out; |
19c96e4b TP |
2706 | |
2707 | /* zero out anything we don't copy from userspace */ | |
2708 | if (n < _IOC_SIZE(cmd)) | |
2709 | memset((u8 *)parg + n, 0, _IOC_SIZE(cmd) - n); | |
337f9d20 TP |
2710 | } else { |
2711 | /* read-only ioctl */ | |
2712 | memset(parg, 0, _IOC_SIZE(cmd)); | |
19c96e4b | 2713 | } |
35ea11ff HV |
2714 | } |
2715 | ||
d14e6d76 PO |
2716 | err = check_array_args(cmd, parg, &array_size, &user_ptr, &kernel_ptr); |
2717 | if (err < 0) | |
2718 | goto out; | |
2719 | has_array_args = err; | |
35ea11ff | 2720 | |
d14e6d76 PO |
2721 | if (has_array_args) { |
2722 | /* | |
2723 | * When adding new types of array args, make sure that the | |
2724 | * parent argument to ioctl (which contains the pointer to the | |
2725 | * array) fits into sbuf (so that mbuf will still remain | |
2726 | * unused up to here). | |
2727 | */ | |
2728 | mbuf = kmalloc(array_size, GFP_KERNEL); | |
2729 | err = -ENOMEM; | |
2730 | if (NULL == mbuf) | |
2731 | goto out_array_args; | |
2732 | err = -EFAULT; | |
2733 | if (copy_from_user(mbuf, user_ptr, array_size)) | |
2734 | goto out_array_args; | |
2735 | *kernel_ptr = mbuf; | |
35ea11ff HV |
2736 | } |
2737 | ||
2738 | /* Handles IOCTL */ | |
fc0a8079 | 2739 | err = func(file, cmd, parg); |
35ea11ff | 2740 | if (err == -ENOIOCTLCMD) |
02bbb814 | 2741 | err = -ENOTTY; |
aa32f4c0 HV |
2742 | if (err == 0) { |
2743 | if (cmd == VIDIOC_DQBUF) | |
2744 | trace_v4l2_dqbuf(video_devdata(file)->minor, parg); | |
2745 | else if (cmd == VIDIOC_QBUF) | |
2746 | trace_v4l2_qbuf(video_devdata(file)->minor, parg); | |
2747 | } | |
35ea11ff | 2748 | |
d14e6d76 | 2749 | if (has_array_args) { |
ba2d35c1 | 2750 | *kernel_ptr = (void __force *)user_ptr; |
d14e6d76 | 2751 | if (copy_to_user(user_ptr, mbuf, array_size)) |
35ea11ff | 2752 | err = -EFAULT; |
d14e6d76 | 2753 | goto out_array_args; |
35ea11ff | 2754 | } |
5d7758ee HV |
2755 | /* VIDIOC_QUERY_DV_TIMINGS can return an error, but still have valid |
2756 | results that must be returned. */ | |
2757 | if (err < 0 && cmd != VIDIOC_QUERY_DV_TIMINGS) | |
35ea11ff HV |
2758 | goto out; |
2759 | ||
d14e6d76 | 2760 | out_array_args: |
35ea11ff HV |
2761 | /* Copy results into user buffer */ |
2762 | switch (_IOC_DIR(cmd)) { | |
2763 | case _IOC_READ: | |
2764 | case (_IOC_WRITE | _IOC_READ): | |
2765 | if (copy_to_user((void __user *)arg, parg, _IOC_SIZE(cmd))) | |
2766 | err = -EFAULT; | |
2767 | break; | |
2768 | } | |
2769 | ||
2770 | out: | |
2771 | kfree(mbuf); | |
2772 | return err; | |
2773 | } | |
fc0a8079 LP |
2774 | EXPORT_SYMBOL(video_usercopy); |
2775 | ||
2776 | long video_ioctl2(struct file *file, | |
2777 | unsigned int cmd, unsigned long arg) | |
2778 | { | |
2779 | return video_usercopy(file, cmd, arg, __video_do_ioctl); | |
2780 | } | |
8a522c91 | 2781 | EXPORT_SYMBOL(video_ioctl2); |