Commit | Line | Data |
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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> |
c139990e | 29 | #include <media/videobuf2-v4l2.h> |
77fa4e07 | 30 | #include <media/v4l2-mc.h> |
35ea11ff | 31 | |
aa32f4c0 HV |
32 | #include <trace/events/v4l2.h> |
33 | ||
25985edc | 34 | /* Zero out the end of the struct pointed to by p. Everything after, but |
7ecc0cf9 TP |
35 | * not including, the specified field is cleared. */ |
36 | #define CLEAR_AFTER_FIELD(p, field) \ | |
37 | memset((u8 *)(p) + offsetof(typeof(*(p)), field) + sizeof((p)->field), \ | |
38 | 0, sizeof(*(p)) - offsetof(typeof(*(p)), field) - sizeof((p)->field)) | |
39 | ||
73f35418 HV |
40 | #define is_valid_ioctl(vfd, cmd) test_bit(_IOC_NR(cmd), (vfd)->valid_ioctls) |
41 | ||
35ea11ff HV |
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[] = { | |
839aa56d | 145 | [0] = "0", |
35ea11ff HV |
146 | [V4L2_BUF_TYPE_VIDEO_CAPTURE] = "vid-cap", |
147 | [V4L2_BUF_TYPE_VIDEO_OVERLAY] = "vid-overlay", | |
148 | [V4L2_BUF_TYPE_VIDEO_OUTPUT] = "vid-out", | |
149 | [V4L2_BUF_TYPE_VBI_CAPTURE] = "vbi-cap", | |
150 | [V4L2_BUF_TYPE_VBI_OUTPUT] = "vbi-out", | |
151 | [V4L2_BUF_TYPE_SLICED_VBI_CAPTURE] = "sliced-vbi-cap", | |
152 | [V4L2_BUF_TYPE_SLICED_VBI_OUTPUT] = "sliced-vbi-out", | |
153 | [V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY] = "vid-out-overlay", | |
f8f3914c PO |
154 | [V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE] = "vid-cap-mplane", |
155 | [V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE] = "vid-out-mplane", | |
6f3073b8 | 156 | [V4L2_BUF_TYPE_SDR_CAPTURE] = "sdr-cap", |
9effc72f | 157 | [V4L2_BUF_TYPE_SDR_OUTPUT] = "sdr-out", |
35ea11ff HV |
158 | }; |
159 | EXPORT_SYMBOL(v4l2_type_names); | |
160 | ||
161 | static const char *v4l2_memory_names[] = { | |
162 | [V4L2_MEMORY_MMAP] = "mmap", | |
163 | [V4L2_MEMORY_USERPTR] = "userptr", | |
164 | [V4L2_MEMORY_OVERLAY] = "overlay", | |
051c7788 | 165 | [V4L2_MEMORY_DMABUF] = "dmabuf", |
35ea11ff HV |
166 | }; |
167 | ||
d9246240 | 168 | #define prt_names(a, arr) (((unsigned)(a)) < ARRAY_SIZE(arr) ? arr[a] : "unknown") |
35ea11ff HV |
169 | |
170 | /* ------------------------------------------------------------------ */ | |
171 | /* debug help functions */ | |
8ab75e3e | 172 | |
59076122 HV |
173 | static void v4l_print_querycap(const void *arg, bool write_only) |
174 | { | |
175 | const struct v4l2_capability *p = arg; | |
176 | ||
27d5a87c | 177 | pr_cont("driver=%.*s, card=%.*s, bus=%.*s, version=0x%08x, " |
59076122 | 178 | "capabilities=0x%08x, device_caps=0x%08x\n", |
27d5a87c HV |
179 | (int)sizeof(p->driver), p->driver, |
180 | (int)sizeof(p->card), p->card, | |
181 | (int)sizeof(p->bus_info), p->bus_info, | |
59076122 HV |
182 | p->version, p->capabilities, p->device_caps); |
183 | } | |
184 | ||
185 | static void v4l_print_enuminput(const void *arg, bool write_only) | |
186 | { | |
187 | const struct v4l2_input *p = arg; | |
188 | ||
27d5a87c | 189 | pr_cont("index=%u, name=%.*s, type=%u, audioset=0x%x, tuner=%u, " |
59076122 | 190 | "std=0x%08Lx, status=0x%x, capabilities=0x%x\n", |
27d5a87c HV |
191 | p->index, (int)sizeof(p->name), p->name, p->type, p->audioset, |
192 | p->tuner, (unsigned long long)p->std, p->status, | |
193 | p->capabilities); | |
59076122 HV |
194 | } |
195 | ||
196 | static void v4l_print_enumoutput(const void *arg, bool write_only) | |
197 | { | |
198 | const struct v4l2_output *p = arg; | |
199 | ||
27d5a87c | 200 | pr_cont("index=%u, name=%.*s, type=%u, audioset=0x%x, " |
59076122 | 201 | "modulator=%u, std=0x%08Lx, capabilities=0x%x\n", |
27d5a87c HV |
202 | p->index, (int)sizeof(p->name), p->name, p->type, p->audioset, |
203 | p->modulator, (unsigned long long)p->std, p->capabilities); | |
59076122 HV |
204 | } |
205 | ||
206 | static void v4l_print_audio(const void *arg, bool write_only) | |
207 | { | |
208 | const struct v4l2_audio *p = arg; | |
209 | ||
210 | if (write_only) | |
211 | pr_cont("index=%u, mode=0x%x\n", p->index, p->mode); | |
212 | else | |
27d5a87c HV |
213 | pr_cont("index=%u, name=%.*s, capability=0x%x, mode=0x%x\n", |
214 | p->index, (int)sizeof(p->name), p->name, | |
215 | p->capability, p->mode); | |
59076122 HV |
216 | } |
217 | ||
218 | static void v4l_print_audioout(const void *arg, bool write_only) | |
219 | { | |
220 | const struct v4l2_audioout *p = arg; | |
221 | ||
222 | if (write_only) | |
223 | pr_cont("index=%u\n", p->index); | |
224 | else | |
27d5a87c HV |
225 | pr_cont("index=%u, name=%.*s, capability=0x%x, mode=0x%x\n", |
226 | p->index, (int)sizeof(p->name), p->name, | |
227 | p->capability, p->mode); | |
59076122 HV |
228 | } |
229 | ||
be6c64e4 HV |
230 | static void v4l_print_fmtdesc(const void *arg, bool write_only) |
231 | { | |
232 | const struct v4l2_fmtdesc *p = arg; | |
233 | ||
27d5a87c | 234 | pr_cont("index=%u, type=%s, flags=0x%x, pixelformat=%c%c%c%c, description='%.*s'\n", |
be6c64e4 HV |
235 | p->index, prt_names(p->type, v4l2_type_names), |
236 | p->flags, (p->pixelformat & 0xff), | |
237 | (p->pixelformat >> 8) & 0xff, | |
238 | (p->pixelformat >> 16) & 0xff, | |
239 | (p->pixelformat >> 24) & 0xff, | |
27d5a87c | 240 | (int)sizeof(p->description), p->description); |
be6c64e4 HV |
241 | } |
242 | ||
243 | static void v4l_print_format(const void *arg, bool write_only) | |
244 | { | |
245 | const struct v4l2_format *p = arg; | |
246 | const struct v4l2_pix_format *pix; | |
247 | const struct v4l2_pix_format_mplane *mp; | |
248 | const struct v4l2_vbi_format *vbi; | |
249 | const struct v4l2_sliced_vbi_format *sliced; | |
250 | const struct v4l2_window *win; | |
87185c95 | 251 | const struct v4l2_sdr_format *sdr; |
be6c64e4 HV |
252 | unsigned i; |
253 | ||
254 | pr_cont("type=%s", prt_names(p->type, v4l2_type_names)); | |
255 | switch (p->type) { | |
256 | case V4L2_BUF_TYPE_VIDEO_CAPTURE: | |
257 | case V4L2_BUF_TYPE_VIDEO_OUTPUT: | |
258 | pix = &p->fmt.pix; | |
259 | pr_cont(", width=%u, height=%u, " | |
260 | "pixelformat=%c%c%c%c, field=%s, " | |
c96fd46a | 261 | "bytesperline=%u, sizeimage=%u, colorspace=%d, " |
74fdcb2e HV |
262 | "flags=0x%x, ycbcr_enc=%u, quantization=%u, " |
263 | "xfer_func=%u\n", | |
be6c64e4 HV |
264 | pix->width, pix->height, |
265 | (pix->pixelformat & 0xff), | |
266 | (pix->pixelformat >> 8) & 0xff, | |
267 | (pix->pixelformat >> 16) & 0xff, | |
268 | (pix->pixelformat >> 24) & 0xff, | |
269 | prt_names(pix->field, v4l2_field_names), | |
270 | pix->bytesperline, pix->sizeimage, | |
736d96b5 | 271 | pix->colorspace, pix->flags, pix->ycbcr_enc, |
74fdcb2e | 272 | pix->quantization, pix->xfer_func); |
be6c64e4 HV |
273 | break; |
274 | case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE: | |
275 | case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE: | |
276 | mp = &p->fmt.pix_mp; | |
277 | pr_cont(", width=%u, height=%u, " | |
278 | "format=%c%c%c%c, field=%s, " | |
1e8faa59 | 279 | "colorspace=%d, num_planes=%u, flags=0x%x, " |
74fdcb2e | 280 | "ycbcr_enc=%u, quantization=%u, xfer_func=%u\n", |
be6c64e4 HV |
281 | mp->width, mp->height, |
282 | (mp->pixelformat & 0xff), | |
283 | (mp->pixelformat >> 8) & 0xff, | |
284 | (mp->pixelformat >> 16) & 0xff, | |
285 | (mp->pixelformat >> 24) & 0xff, | |
286 | prt_names(mp->field, v4l2_field_names), | |
736d96b5 | 287 | mp->colorspace, mp->num_planes, mp->flags, |
74fdcb2e | 288 | mp->ycbcr_enc, mp->quantization, mp->xfer_func); |
be6c64e4 HV |
289 | for (i = 0; i < mp->num_planes; i++) |
290 | printk(KERN_DEBUG "plane %u: bytesperline=%u sizeimage=%u\n", i, | |
291 | mp->plane_fmt[i].bytesperline, | |
292 | mp->plane_fmt[i].sizeimage); | |
293 | break; | |
294 | case V4L2_BUF_TYPE_VIDEO_OVERLAY: | |
295 | case V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY: | |
296 | win = &p->fmt.win; | |
560dde24 HV |
297 | /* Note: we can't print the clip list here since the clips |
298 | * pointer is a userspace pointer, not a kernelspace | |
299 | * pointer. */ | |
300 | 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", | |
301 | win->w.width, win->w.height, win->w.left, win->w.top, | |
be6c64e4 | 302 | prt_names(win->field, v4l2_field_names), |
560dde24 HV |
303 | win->chromakey, win->clipcount, win->clips, |
304 | win->bitmap, win->global_alpha); | |
be6c64e4 HV |
305 | break; |
306 | case V4L2_BUF_TYPE_VBI_CAPTURE: | |
307 | case V4L2_BUF_TYPE_VBI_OUTPUT: | |
308 | vbi = &p->fmt.vbi; | |
309 | pr_cont(", sampling_rate=%u, offset=%u, samples_per_line=%u, " | |
310 | "sample_format=%c%c%c%c, start=%u,%u, count=%u,%u\n", | |
311 | vbi->sampling_rate, vbi->offset, | |
312 | vbi->samples_per_line, | |
313 | (vbi->sample_format & 0xff), | |
314 | (vbi->sample_format >> 8) & 0xff, | |
315 | (vbi->sample_format >> 16) & 0xff, | |
316 | (vbi->sample_format >> 24) & 0xff, | |
317 | vbi->start[0], vbi->start[1], | |
318 | vbi->count[0], vbi->count[1]); | |
319 | break; | |
320 | case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE: | |
321 | case V4L2_BUF_TYPE_SLICED_VBI_OUTPUT: | |
322 | sliced = &p->fmt.sliced; | |
323 | pr_cont(", service_set=0x%08x, io_size=%d\n", | |
324 | sliced->service_set, sliced->io_size); | |
325 | for (i = 0; i < 24; i++) | |
326 | printk(KERN_DEBUG "line[%02u]=0x%04x, 0x%04x\n", i, | |
327 | sliced->service_lines[0][i], | |
328 | sliced->service_lines[1][i]); | |
329 | break; | |
582c52cb | 330 | case V4L2_BUF_TYPE_SDR_CAPTURE: |
9effc72f | 331 | case V4L2_BUF_TYPE_SDR_OUTPUT: |
582c52cb AP |
332 | sdr = &p->fmt.sdr; |
333 | pr_cont(", pixelformat=%c%c%c%c\n", | |
334 | (sdr->pixelformat >> 0) & 0xff, | |
335 | (sdr->pixelformat >> 8) & 0xff, | |
336 | (sdr->pixelformat >> 16) & 0xff, | |
337 | (sdr->pixelformat >> 24) & 0xff); | |
338 | break; | |
be6c64e4 HV |
339 | } |
340 | } | |
341 | ||
342 | static void v4l_print_framebuffer(const void *arg, bool write_only) | |
343 | { | |
344 | const struct v4l2_framebuffer *p = arg; | |
345 | ||
346 | pr_cont("capability=0x%x, flags=0x%x, base=0x%p, width=%u, " | |
347 | "height=%u, pixelformat=%c%c%c%c, " | |
560dde24 | 348 | "bytesperline=%u, sizeimage=%u, colorspace=%d\n", |
be6c64e4 HV |
349 | p->capability, p->flags, p->base, |
350 | p->fmt.width, p->fmt.height, | |
351 | (p->fmt.pixelformat & 0xff), | |
352 | (p->fmt.pixelformat >> 8) & 0xff, | |
353 | (p->fmt.pixelformat >> 16) & 0xff, | |
354 | (p->fmt.pixelformat >> 24) & 0xff, | |
355 | p->fmt.bytesperline, p->fmt.sizeimage, | |
356 | p->fmt.colorspace); | |
357 | } | |
358 | ||
e325b244 HV |
359 | static void v4l_print_buftype(const void *arg, bool write_only) |
360 | { | |
361 | pr_cont("type=%s\n", prt_names(*(u32 *)arg, v4l2_type_names)); | |
362 | } | |
363 | ||
4b1e2e4d HV |
364 | static void v4l_print_modulator(const void *arg, bool write_only) |
365 | { | |
366 | const struct v4l2_modulator *p = arg; | |
367 | ||
368 | if (write_only) | |
560dde24 | 369 | pr_cont("index=%u, txsubchans=0x%x\n", p->index, p->txsubchans); |
4b1e2e4d | 370 | else |
27d5a87c | 371 | pr_cont("index=%u, name=%.*s, capability=0x%x, " |
4b1e2e4d | 372 | "rangelow=%u, rangehigh=%u, txsubchans=0x%x\n", |
27d5a87c | 373 | p->index, (int)sizeof(p->name), p->name, p->capability, |
4b1e2e4d HV |
374 | p->rangelow, p->rangehigh, p->txsubchans); |
375 | } | |
376 | ||
377 | static void v4l_print_tuner(const void *arg, bool write_only) | |
378 | { | |
379 | const struct v4l2_tuner *p = arg; | |
380 | ||
381 | if (write_only) | |
382 | pr_cont("index=%u, audmode=%u\n", p->index, p->audmode); | |
383 | else | |
27d5a87c | 384 | pr_cont("index=%u, name=%.*s, type=%u, capability=0x%x, " |
4b1e2e4d HV |
385 | "rangelow=%u, rangehigh=%u, signal=%u, afc=%d, " |
386 | "rxsubchans=0x%x, audmode=%u\n", | |
27d5a87c | 387 | p->index, (int)sizeof(p->name), p->name, p->type, |
4b1e2e4d HV |
388 | p->capability, p->rangelow, |
389 | p->rangehigh, p->signal, p->afc, | |
390 | p->rxsubchans, p->audmode); | |
391 | } | |
392 | ||
393 | static void v4l_print_frequency(const void *arg, bool write_only) | |
394 | { | |
395 | const struct v4l2_frequency *p = arg; | |
396 | ||
397 | pr_cont("tuner=%u, type=%u, frequency=%u\n", | |
398 | p->tuner, p->type, p->frequency); | |
399 | } | |
400 | ||
401 | static void v4l_print_standard(const void *arg, bool write_only) | |
402 | { | |
403 | const struct v4l2_standard *p = arg; | |
404 | ||
27d5a87c | 405 | pr_cont("index=%u, id=0x%Lx, name=%.*s, fps=%u/%u, " |
4b1e2e4d | 406 | "framelines=%u\n", p->index, |
27d5a87c | 407 | (unsigned long long)p->id, (int)sizeof(p->name), p->name, |
4b1e2e4d HV |
408 | p->frameperiod.numerator, |
409 | p->frameperiod.denominator, | |
410 | p->framelines); | |
411 | } | |
412 | ||
413 | static void v4l_print_std(const void *arg, bool write_only) | |
414 | { | |
415 | pr_cont("std=0x%08Lx\n", *(const long long unsigned *)arg); | |
416 | } | |
417 | ||
418 | static void v4l_print_hw_freq_seek(const void *arg, bool write_only) | |
419 | { | |
420 | const struct v4l2_hw_freq_seek *p = arg; | |
421 | ||
5e788317 HV |
422 | pr_cont("tuner=%u, type=%u, seek_upward=%u, wrap_around=%u, spacing=%u, " |
423 | "rangelow=%u, rangehigh=%u\n", | |
424 | p->tuner, p->type, p->seek_upward, p->wrap_around, p->spacing, | |
425 | p->rangelow, p->rangehigh); | |
4b1e2e4d HV |
426 | } |
427 | ||
eb3728ed | 428 | static void v4l_print_requestbuffers(const void *arg, bool write_only) |
59076122 | 429 | { |
eb3728ed HV |
430 | const struct v4l2_requestbuffers *p = arg; |
431 | ||
432 | pr_cont("count=%d, type=%s, memory=%s\n", | |
433 | p->count, | |
434 | prt_names(p->type, v4l2_type_names), | |
435 | prt_names(p->memory, v4l2_memory_names)); | |
59076122 HV |
436 | } |
437 | ||
eb3728ed | 438 | static void v4l_print_buffer(const void *arg, bool write_only) |
35ea11ff | 439 | { |
eb3728ed HV |
440 | const struct v4l2_buffer *p = arg; |
441 | const struct v4l2_timecode *tc = &p->timecode; | |
442 | const struct v4l2_plane *plane; | |
d14e6d76 | 443 | int i; |
35ea11ff | 444 | |
eb3728ed HV |
445 | pr_cont("%02ld:%02d:%02d.%08ld index=%d, type=%s, " |
446 | "flags=0x%08x, field=%s, sequence=%d, memory=%s", | |
35ea11ff HV |
447 | p->timestamp.tv_sec / 3600, |
448 | (int)(p->timestamp.tv_sec / 60) % 60, | |
449 | (int)(p->timestamp.tv_sec % 60), | |
b045979d | 450 | (long)p->timestamp.tv_usec, |
35ea11ff HV |
451 | p->index, |
452 | prt_names(p->type, v4l2_type_names), | |
eb3728ed HV |
453 | p->flags, prt_names(p->field, v4l2_field_names), |
454 | p->sequence, prt_names(p->memory, v4l2_memory_names)); | |
d14e6d76 PO |
455 | |
456 | if (V4L2_TYPE_IS_MULTIPLANAR(p->type) && p->m.planes) { | |
eb3728ed | 457 | pr_cont("\n"); |
d14e6d76 PO |
458 | for (i = 0; i < p->length; ++i) { |
459 | plane = &p->m.planes[i]; | |
eb3728ed | 460 | printk(KERN_DEBUG |
560dde24 | 461 | "plane %d: bytesused=%d, data_offset=0x%08x, " |
eb3728ed | 462 | "offset/userptr=0x%lx, length=%d\n", |
d14e6d76 PO |
463 | i, plane->bytesused, plane->data_offset, |
464 | plane->m.userptr, plane->length); | |
465 | } | |
466 | } else { | |
560dde24 | 467 | pr_cont(", bytesused=%d, offset/userptr=0x%lx, length=%d\n", |
d14e6d76 PO |
468 | p->bytesused, p->m.userptr, p->length); |
469 | } | |
470 | ||
eb3728ed HV |
471 | printk(KERN_DEBUG "timecode=%02d:%02d:%02d type=%d, " |
472 | "flags=0x%08x, frames=%d, userbits=0x%08x\n", | |
35ea11ff HV |
473 | tc->hours, tc->minutes, tc->seconds, |
474 | tc->type, tc->flags, tc->frames, *(__u32 *)tc->userbits); | |
475 | } | |
476 | ||
b799d09a TS |
477 | static void v4l_print_exportbuffer(const void *arg, bool write_only) |
478 | { | |
479 | const struct v4l2_exportbuffer *p = arg; | |
480 | ||
481 | pr_cont("fd=%d, type=%s, index=%u, plane=%u, flags=0x%08x\n", | |
482 | p->fd, prt_names(p->type, v4l2_type_names), | |
483 | p->index, p->plane, p->flags); | |
484 | } | |
485 | ||
eb3728ed HV |
486 | static void v4l_print_create_buffers(const void *arg, bool write_only) |
487 | { | |
488 | const struct v4l2_create_buffers *p = arg; | |
489 | ||
490 | pr_cont("index=%d, count=%d, memory=%s, ", | |
491 | p->index, p->count, | |
492 | prt_names(p->memory, v4l2_memory_names)); | |
493 | v4l_print_format(&p->format, write_only); | |
494 | } | |
495 | ||
496 | static void v4l_print_streamparm(const void *arg, bool write_only) | |
497 | { | |
498 | const struct v4l2_streamparm *p = arg; | |
499 | ||
500 | pr_cont("type=%s", prt_names(p->type, v4l2_type_names)); | |
501 | ||
502 | if (p->type == V4L2_BUF_TYPE_VIDEO_CAPTURE || | |
503 | p->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) { | |
504 | const struct v4l2_captureparm *c = &p->parm.capture; | |
505 | ||
506 | pr_cont(", capability=0x%x, capturemode=0x%x, timeperframe=%d/%d, " | |
507 | "extendedmode=%d, readbuffers=%d\n", | |
508 | c->capability, c->capturemode, | |
509 | c->timeperframe.numerator, c->timeperframe.denominator, | |
510 | c->extendedmode, c->readbuffers); | |
511 | } else if (p->type == V4L2_BUF_TYPE_VIDEO_OUTPUT || | |
512 | p->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) { | |
513 | const struct v4l2_outputparm *c = &p->parm.output; | |
514 | ||
515 | pr_cont(", capability=0x%x, outputmode=0x%x, timeperframe=%d/%d, " | |
516 | "extendedmode=%d, writebuffers=%d\n", | |
517 | c->capability, c->outputmode, | |
518 | c->timeperframe.numerator, c->timeperframe.denominator, | |
519 | c->extendedmode, c->writebuffers); | |
560dde24 HV |
520 | } else { |
521 | pr_cont("\n"); | |
eb3728ed HV |
522 | } |
523 | } | |
524 | ||
efbceecd HV |
525 | static void v4l_print_queryctrl(const void *arg, bool write_only) |
526 | { | |
527 | const struct v4l2_queryctrl *p = arg; | |
528 | ||
27d5a87c | 529 | pr_cont("id=0x%x, type=%d, name=%.*s, min/max=%d/%d, " |
efbceecd | 530 | "step=%d, default=%d, flags=0x%08x\n", |
27d5a87c | 531 | p->id, p->type, (int)sizeof(p->name), p->name, |
efbceecd HV |
532 | p->minimum, p->maximum, |
533 | p->step, p->default_value, p->flags); | |
534 | } | |
535 | ||
e6bee368 HV |
536 | static void v4l_print_query_ext_ctrl(const void *arg, bool write_only) |
537 | { | |
538 | const struct v4l2_query_ext_ctrl *p = arg; | |
539 | ||
540 | pr_cont("id=0x%x, type=%d, name=%.*s, min/max=%lld/%lld, " | |
541 | "step=%lld, default=%lld, flags=0x%08x, elem_size=%u, elems=%u, " | |
0176077a | 542 | "nr_of_dims=%u, dims=%u,%u,%u,%u\n", |
e6bee368 HV |
543 | p->id, p->type, (int)sizeof(p->name), p->name, |
544 | p->minimum, p->maximum, | |
545 | p->step, p->default_value, p->flags, | |
546 | p->elem_size, p->elems, p->nr_of_dims, | |
0176077a | 547 | p->dims[0], p->dims[1], p->dims[2], p->dims[3]); |
e6bee368 HV |
548 | } |
549 | ||
efbceecd HV |
550 | static void v4l_print_querymenu(const void *arg, bool write_only) |
551 | { | |
552 | const struct v4l2_querymenu *p = arg; | |
553 | ||
554 | pr_cont("id=0x%x, index=%d\n", p->id, p->index); | |
555 | } | |
556 | ||
557 | static void v4l_print_control(const void *arg, bool write_only) | |
558 | { | |
559 | const struct v4l2_control *p = arg; | |
560 | ||
561 | pr_cont("id=0x%x, value=%d\n", p->id, p->value); | |
562 | } | |
563 | ||
564 | static void v4l_print_ext_controls(const void *arg, bool write_only) | |
565 | { | |
566 | const struct v4l2_ext_controls *p = arg; | |
567 | int i; | |
568 | ||
0f8017be RR |
569 | pr_cont("which=0x%x, count=%d, error_idx=%d", |
570 | p->which, p->count, p->error_idx); | |
efbceecd | 571 | for (i = 0; i < p->count; i++) { |
017ab36a | 572 | if (!p->controls[i].size) |
efbceecd HV |
573 | pr_cont(", id/val=0x%x/0x%x", |
574 | p->controls[i].id, p->controls[i].value); | |
575 | else | |
576 | pr_cont(", id/size=0x%x/%u", | |
577 | p->controls[i].id, p->controls[i].size); | |
578 | } | |
579 | pr_cont("\n"); | |
580 | } | |
581 | ||
d84f2d94 | 582 | static void v4l_print_cropcap(const void *arg, bool write_only) |
eb3728ed | 583 | { |
d84f2d94 HV |
584 | const struct v4l2_cropcap *p = arg; |
585 | ||
586 | pr_cont("type=%s, bounds wxh=%dx%d, x,y=%d,%d, " | |
a112fbaf | 587 | "defrect wxh=%dx%d, x,y=%d,%d, " |
d84f2d94 HV |
588 | "pixelaspect %d/%d\n", |
589 | prt_names(p->type, v4l2_type_names), | |
590 | p->bounds.width, p->bounds.height, | |
591 | p->bounds.left, p->bounds.top, | |
592 | p->defrect.width, p->defrect.height, | |
593 | p->defrect.left, p->defrect.top, | |
594 | p->pixelaspect.numerator, p->pixelaspect.denominator); | |
eb3728ed HV |
595 | } |
596 | ||
d84f2d94 | 597 | static void v4l_print_crop(const void *arg, bool write_only) |
35ea11ff | 598 | { |
d84f2d94 HV |
599 | const struct v4l2_crop *p = arg; |
600 | ||
601 | pr_cont("type=%s, wxh=%dx%d, x,y=%d,%d\n", | |
602 | prt_names(p->type, v4l2_type_names), | |
603 | p->c.width, p->c.height, | |
604 | p->c.left, p->c.top); | |
605 | } | |
606 | ||
607 | static void v4l_print_selection(const void *arg, bool write_only) | |
608 | { | |
609 | const struct v4l2_selection *p = arg; | |
610 | ||
611 | pr_cont("type=%s, target=%d, flags=0x%x, wxh=%dx%d, x,y=%d,%d\n", | |
612 | prt_names(p->type, v4l2_type_names), | |
613 | p->target, p->flags, | |
614 | p->r.width, p->r.height, p->r.left, p->r.top); | |
615 | } | |
616 | ||
d806f2df HV |
617 | static void v4l_print_jpegcompression(const void *arg, bool write_only) |
618 | { | |
619 | const struct v4l2_jpegcompression *p = arg; | |
620 | ||
621 | pr_cont("quality=%d, APPn=%d, APP_len=%d, " | |
622 | "COM_len=%d, jpeg_markers=0x%x\n", | |
623 | p->quality, p->APPn, p->APP_len, | |
624 | p->COM_len, p->jpeg_markers); | |
625 | } | |
626 | ||
627 | static void v4l_print_enc_idx(const void *arg, bool write_only) | |
628 | { | |
629 | const struct v4l2_enc_idx *p = arg; | |
630 | ||
631 | pr_cont("entries=%d, entries_cap=%d\n", | |
632 | p->entries, p->entries_cap); | |
633 | } | |
634 | ||
635 | static void v4l_print_encoder_cmd(const void *arg, bool write_only) | |
636 | { | |
637 | const struct v4l2_encoder_cmd *p = arg; | |
638 | ||
639 | pr_cont("cmd=%d, flags=0x%x\n", | |
640 | p->cmd, p->flags); | |
641 | } | |
642 | ||
643 | static void v4l_print_decoder_cmd(const void *arg, bool write_only) | |
644 | { | |
645 | const struct v4l2_decoder_cmd *p = arg; | |
646 | ||
647 | pr_cont("cmd=%d, flags=0x%x\n", p->cmd, p->flags); | |
648 | ||
649 | if (p->cmd == V4L2_DEC_CMD_START) | |
650 | pr_info("speed=%d, format=%u\n", | |
651 | p->start.speed, p->start.format); | |
652 | else if (p->cmd == V4L2_DEC_CMD_STOP) | |
653 | pr_info("pts=%llu\n", p->stop.pts); | |
654 | } | |
655 | ||
96b03d2a | 656 | static void v4l_print_dbg_chip_info(const void *arg, bool write_only) |
79b0c640 | 657 | { |
96b03d2a | 658 | const struct v4l2_dbg_chip_info *p = arg; |
79b0c640 HV |
659 | |
660 | pr_cont("type=%u, ", p->match.type); | |
3eef2510 | 661 | if (p->match.type == V4L2_CHIP_MATCH_I2C_DRIVER) |
79b0c640 HV |
662 | pr_cont("name=%.*s, ", |
663 | (int)sizeof(p->match.name), p->match.name); | |
664 | else | |
665 | pr_cont("addr=%u, ", p->match.addr); | |
666 | pr_cont("name=%.*s\n", (int)sizeof(p->name), p->name); | |
667 | } | |
668 | ||
f16f77b0 HV |
669 | static void v4l_print_dbg_register(const void *arg, bool write_only) |
670 | { | |
671 | const struct v4l2_dbg_register *p = arg; | |
672 | ||
673 | pr_cont("type=%u, ", p->match.type); | |
3eef2510 | 674 | if (p->match.type == V4L2_CHIP_MATCH_I2C_DRIVER) |
27d5a87c HV |
675 | pr_cont("name=%.*s, ", |
676 | (int)sizeof(p->match.name), p->match.name); | |
f16f77b0 HV |
677 | else |
678 | pr_cont("addr=%u, ", p->match.addr); | |
679 | pr_cont("reg=0x%llx, val=0x%llx\n", | |
680 | p->reg, p->val); | |
681 | } | |
682 | ||
efc626b0 | 683 | static void v4l_print_dv_timings(const void *arg, bool write_only) |
5d7758ee | 684 | { |
efc626b0 HV |
685 | const struct v4l2_dv_timings *p = arg; |
686 | ||
5d7758ee HV |
687 | switch (p->type) { |
688 | case V4L2_DV_BT_656_1120: | |
efc626b0 HV |
689 | pr_cont("type=bt-656/1120, interlaced=%u, " |
690 | "pixelclock=%llu, " | |
691 | "width=%u, height=%u, polarities=0x%x, " | |
692 | "hfrontporch=%u, hsync=%u, " | |
693 | "hbackporch=%u, vfrontporch=%u, " | |
694 | "vsync=%u, vbackporch=%u, " | |
695 | "il_vfrontporch=%u, il_vsync=%u, " | |
696 | "il_vbackporch=%u, standards=0x%x, flags=0x%x\n", | |
5d7758ee HV |
697 | p->bt.interlaced, p->bt.pixelclock, |
698 | p->bt.width, p->bt.height, | |
699 | p->bt.polarities, p->bt.hfrontporch, | |
700 | p->bt.hsync, p->bt.hbackporch, | |
701 | p->bt.vfrontporch, p->bt.vsync, | |
702 | p->bt.vbackporch, p->bt.il_vfrontporch, | |
703 | p->bt.il_vsync, p->bt.il_vbackporch, | |
704 | p->bt.standards, p->bt.flags); | |
705 | break; | |
706 | default: | |
efc626b0 | 707 | pr_cont("type=%d\n", p->type); |
5d7758ee HV |
708 | break; |
709 | } | |
710 | } | |
711 | ||
efc626b0 HV |
712 | static void v4l_print_enum_dv_timings(const void *arg, bool write_only) |
713 | { | |
714 | const struct v4l2_enum_dv_timings *p = arg; | |
715 | ||
716 | pr_cont("index=%u, ", p->index); | |
717 | v4l_print_dv_timings(&p->timings, write_only); | |
718 | } | |
719 | ||
720 | static void v4l_print_dv_timings_cap(const void *arg, bool write_only) | |
721 | { | |
722 | const struct v4l2_dv_timings_cap *p = arg; | |
723 | ||
724 | switch (p->type) { | |
725 | case V4L2_DV_BT_656_1120: | |
726 | pr_cont("type=bt-656/1120, width=%u-%u, height=%u-%u, " | |
727 | "pixelclock=%llu-%llu, standards=0x%x, capabilities=0x%x\n", | |
728 | p->bt.min_width, p->bt.max_width, | |
729 | p->bt.min_height, p->bt.max_height, | |
730 | p->bt.min_pixelclock, p->bt.max_pixelclock, | |
731 | p->bt.standards, p->bt.capabilities); | |
732 | break; | |
733 | default: | |
734 | pr_cont("type=%u\n", p->type); | |
735 | break; | |
736 | } | |
737 | } | |
738 | ||
458aa4a6 HV |
739 | static void v4l_print_frmsizeenum(const void *arg, bool write_only) |
740 | { | |
741 | const struct v4l2_frmsizeenum *p = arg; | |
742 | ||
743 | pr_cont("index=%u, pixelformat=%c%c%c%c, type=%u", | |
744 | p->index, | |
745 | (p->pixel_format & 0xff), | |
746 | (p->pixel_format >> 8) & 0xff, | |
747 | (p->pixel_format >> 16) & 0xff, | |
748 | (p->pixel_format >> 24) & 0xff, | |
749 | p->type); | |
750 | switch (p->type) { | |
751 | case V4L2_FRMSIZE_TYPE_DISCRETE: | |
560dde24 | 752 | pr_cont(", wxh=%ux%u\n", |
458aa4a6 HV |
753 | p->discrete.width, p->discrete.height); |
754 | break; | |
755 | case V4L2_FRMSIZE_TYPE_STEPWISE: | |
560dde24 | 756 | pr_cont(", min=%ux%u, max=%ux%u, step=%ux%u\n", |
458aa4a6 HV |
757 | p->stepwise.min_width, p->stepwise.min_height, |
758 | p->stepwise.step_width, p->stepwise.step_height, | |
759 | p->stepwise.max_width, p->stepwise.max_height); | |
760 | break; | |
761 | case V4L2_FRMSIZE_TYPE_CONTINUOUS: | |
762 | /* fall through */ | |
763 | default: | |
764 | pr_cont("\n"); | |
765 | break; | |
766 | } | |
767 | } | |
768 | ||
769 | static void v4l_print_frmivalenum(const void *arg, bool write_only) | |
770 | { | |
771 | const struct v4l2_frmivalenum *p = arg; | |
772 | ||
773 | pr_cont("index=%u, pixelformat=%c%c%c%c, wxh=%ux%u, type=%u", | |
774 | p->index, | |
775 | (p->pixel_format & 0xff), | |
776 | (p->pixel_format >> 8) & 0xff, | |
777 | (p->pixel_format >> 16) & 0xff, | |
778 | (p->pixel_format >> 24) & 0xff, | |
779 | p->width, p->height, p->type); | |
780 | switch (p->type) { | |
781 | case V4L2_FRMIVAL_TYPE_DISCRETE: | |
560dde24 | 782 | pr_cont(", fps=%d/%d\n", |
458aa4a6 HV |
783 | p->discrete.numerator, |
784 | p->discrete.denominator); | |
785 | break; | |
786 | case V4L2_FRMIVAL_TYPE_STEPWISE: | |
560dde24 | 787 | pr_cont(", min=%d/%d, max=%d/%d, step=%d/%d\n", |
458aa4a6 HV |
788 | p->stepwise.min.numerator, |
789 | p->stepwise.min.denominator, | |
790 | p->stepwise.max.numerator, | |
791 | p->stepwise.max.denominator, | |
792 | p->stepwise.step.numerator, | |
793 | p->stepwise.step.denominator); | |
794 | break; | |
795 | case V4L2_FRMIVAL_TYPE_CONTINUOUS: | |
796 | /* fall through */ | |
797 | default: | |
798 | pr_cont("\n"); | |
799 | break; | |
800 | } | |
801 | } | |
802 | ||
803 | static void v4l_print_event(const void *arg, bool write_only) | |
804 | { | |
805 | const struct v4l2_event *p = arg; | |
806 | const struct v4l2_event_ctrl *c; | |
807 | ||
808 | pr_cont("type=0x%x, pending=%u, sequence=%u, id=%u, " | |
809 | "timestamp=%lu.%9.9lu\n", | |
810 | p->type, p->pending, p->sequence, p->id, | |
811 | p->timestamp.tv_sec, p->timestamp.tv_nsec); | |
812 | switch (p->type) { | |
813 | case V4L2_EVENT_VSYNC: | |
814 | printk(KERN_DEBUG "field=%s\n", | |
815 | prt_names(p->u.vsync.field, v4l2_field_names)); | |
816 | break; | |
817 | case V4L2_EVENT_CTRL: | |
818 | c = &p->u.ctrl; | |
819 | printk(KERN_DEBUG "changes=0x%x, type=%u, ", | |
820 | c->changes, c->type); | |
821 | if (c->type == V4L2_CTRL_TYPE_INTEGER64) | |
822 | pr_cont("value64=%lld, ", c->value64); | |
823 | else | |
824 | pr_cont("value=%d, ", c->value); | |
560dde24 HV |
825 | pr_cont("flags=0x%x, minimum=%d, maximum=%d, step=%d, " |
826 | "default_value=%d\n", | |
458aa4a6 HV |
827 | c->flags, c->minimum, c->maximum, |
828 | c->step, c->default_value); | |
829 | break; | |
830 | case V4L2_EVENT_FRAME_SYNC: | |
831 | pr_cont("frame_sequence=%u\n", | |
832 | p->u.frame_sync.frame_sequence); | |
833 | break; | |
834 | } | |
835 | } | |
836 | ||
837 | static void v4l_print_event_subscription(const void *arg, bool write_only) | |
838 | { | |
839 | const struct v4l2_event_subscription *p = arg; | |
840 | ||
841 | pr_cont("type=0x%x, id=0x%x, flags=0x%x\n", | |
842 | p->type, p->id, p->flags); | |
843 | } | |
844 | ||
845 | static void v4l_print_sliced_vbi_cap(const void *arg, bool write_only) | |
846 | { | |
847 | const struct v4l2_sliced_vbi_cap *p = arg; | |
848 | int i; | |
849 | ||
850 | pr_cont("type=%s, service_set=0x%08x\n", | |
851 | prt_names(p->type, v4l2_type_names), p->service_set); | |
852 | for (i = 0; i < 24; i++) | |
853 | printk(KERN_DEBUG "line[%02u]=0x%04x, 0x%04x\n", i, | |
854 | p->service_lines[0][i], | |
855 | p->service_lines[1][i]); | |
856 | } | |
857 | ||
82b655bf HV |
858 | static void v4l_print_freq_band(const void *arg, bool write_only) |
859 | { | |
860 | const struct v4l2_frequency_band *p = arg; | |
861 | ||
862 | pr_cont("tuner=%u, type=%u, index=%u, capability=0x%x, " | |
560dde24 | 863 | "rangelow=%u, rangehigh=%u, modulation=0x%x\n", |
82b655bf HV |
864 | p->tuner, p->type, p->index, |
865 | p->capability, p->rangelow, | |
866 | p->rangehigh, p->modulation); | |
867 | } | |
868 | ||
dd519bb3 HV |
869 | static void v4l_print_edid(const void *arg, bool write_only) |
870 | { | |
871 | const struct v4l2_edid *p = arg; | |
872 | ||
873 | pr_cont("pad=%u, start_block=%u, blocks=%u\n", | |
874 | p->pad, p->start_block, p->blocks); | |
875 | } | |
876 | ||
efc626b0 HV |
877 | static void v4l_print_u32(const void *arg, bool write_only) |
878 | { | |
879 | pr_cont("value=%u\n", *(const u32 *)arg); | |
880 | } | |
881 | ||
882 | static void v4l_print_newline(const void *arg, bool write_only) | |
883 | { | |
884 | pr_cont("\n"); | |
885 | } | |
886 | ||
f18d8e07 HV |
887 | static void v4l_print_default(const void *arg, bool write_only) |
888 | { | |
889 | pr_cont("driver-specific ioctl\n"); | |
890 | } | |
891 | ||
efbceecd | 892 | static int check_ext_ctrls(struct v4l2_ext_controls *c, int allow_priv) |
35ea11ff HV |
893 | { |
894 | __u32 i; | |
895 | ||
896 | /* zero the reserved fields */ | |
897 | c->reserved[0] = c->reserved[1] = 0; | |
6b5a9492 | 898 | for (i = 0; i < c->count; i++) |
35ea11ff | 899 | c->controls[i].reserved2[0] = 0; |
6b5a9492 | 900 | |
35ea11ff HV |
901 | /* V4L2_CID_PRIVATE_BASE cannot be used as control class |
902 | when using extended controls. | |
903 | Only when passed in through VIDIOC_G_CTRL and VIDIOC_S_CTRL | |
904 | is it allowed for backwards compatibility. | |
905 | */ | |
0f8017be | 906 | if (!allow_priv && c->which == V4L2_CID_PRIVATE_BASE) |
35ea11ff | 907 | return 0; |
0f8017be | 908 | if (!c->which) |
9b239b22 | 909 | return 1; |
35ea11ff HV |
910 | /* Check that all controls are from the same control class. */ |
911 | for (i = 0; i < c->count; i++) { | |
0f8017be | 912 | if (V4L2_CTRL_ID2WHICH(c->controls[i].id) != c->which) { |
35ea11ff HV |
913 | c->error_idx = i; |
914 | return 0; | |
915 | } | |
916 | } | |
917 | return 1; | |
918 | } | |
919 | ||
4b20259f | 920 | static int check_fmt(struct file *file, enum v4l2_buf_type type) |
35ea11ff | 921 | { |
4b20259f HV |
922 | struct video_device *vfd = video_devdata(file); |
923 | const struct v4l2_ioctl_ops *ops = vfd->ioctl_ops; | |
924 | bool is_vid = vfd->vfl_type == VFL_TYPE_GRABBER; | |
925 | bool is_vbi = vfd->vfl_type == VFL_TYPE_VBI; | |
582c52cb | 926 | bool is_sdr = vfd->vfl_type == VFL_TYPE_SDR; |
4b20259f HV |
927 | bool is_rx = vfd->vfl_dir != VFL_DIR_TX; |
928 | bool is_tx = vfd->vfl_dir != VFL_DIR_RX; | |
929 | ||
a399810c HV |
930 | if (ops == NULL) |
931 | return -EINVAL; | |
932 | ||
35ea11ff HV |
933 | switch (type) { |
934 | case V4L2_BUF_TYPE_VIDEO_CAPTURE: | |
4b20259f HV |
935 | if (is_vid && is_rx && |
936 | (ops->vidioc_g_fmt_vid_cap || ops->vidioc_g_fmt_vid_cap_mplane)) | |
d14e6d76 PO |
937 | return 0; |
938 | break; | |
939 | case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE: | |
4b20259f | 940 | if (is_vid && is_rx && ops->vidioc_g_fmt_vid_cap_mplane) |
35ea11ff HV |
941 | return 0; |
942 | break; | |
943 | case V4L2_BUF_TYPE_VIDEO_OVERLAY: | |
4b20259f | 944 | if (is_vid && is_rx && ops->vidioc_g_fmt_vid_overlay) |
35ea11ff HV |
945 | return 0; |
946 | break; | |
947 | case V4L2_BUF_TYPE_VIDEO_OUTPUT: | |
4b20259f HV |
948 | if (is_vid && is_tx && |
949 | (ops->vidioc_g_fmt_vid_out || ops->vidioc_g_fmt_vid_out_mplane)) | |
d14e6d76 PO |
950 | return 0; |
951 | break; | |
952 | case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE: | |
4b20259f | 953 | if (is_vid && is_tx && ops->vidioc_g_fmt_vid_out_mplane) |
35ea11ff HV |
954 | return 0; |
955 | break; | |
956 | case V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY: | |
4b20259f | 957 | if (is_vid && is_tx && ops->vidioc_g_fmt_vid_out_overlay) |
35ea11ff HV |
958 | return 0; |
959 | break; | |
960 | case V4L2_BUF_TYPE_VBI_CAPTURE: | |
4b20259f | 961 | if (is_vbi && is_rx && ops->vidioc_g_fmt_vbi_cap) |
35ea11ff HV |
962 | return 0; |
963 | break; | |
964 | case V4L2_BUF_TYPE_VBI_OUTPUT: | |
4b20259f | 965 | if (is_vbi && is_tx && ops->vidioc_g_fmt_vbi_out) |
35ea11ff HV |
966 | return 0; |
967 | break; | |
968 | case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE: | |
4b20259f | 969 | if (is_vbi && is_rx && ops->vidioc_g_fmt_sliced_vbi_cap) |
35ea11ff HV |
970 | return 0; |
971 | break; | |
972 | case V4L2_BUF_TYPE_SLICED_VBI_OUTPUT: | |
4b20259f | 973 | if (is_vbi && is_tx && ops->vidioc_g_fmt_sliced_vbi_out) |
35ea11ff HV |
974 | return 0; |
975 | break; | |
582c52cb AP |
976 | case V4L2_BUF_TYPE_SDR_CAPTURE: |
977 | if (is_sdr && is_rx && ops->vidioc_g_fmt_sdr_cap) | |
978 | return 0; | |
979 | break; | |
9effc72f AP |
980 | case V4L2_BUF_TYPE_SDR_OUTPUT: |
981 | if (is_sdr && is_tx && ops->vidioc_g_fmt_sdr_out) | |
982 | return 0; | |
983 | break; | |
633c98e5 | 984 | default: |
35ea11ff HV |
985 | break; |
986 | } | |
987 | return -EINVAL; | |
988 | } | |
989 | ||
d52e2381 LP |
990 | static void v4l_sanitize_format(struct v4l2_format *fmt) |
991 | { | |
992 | unsigned int offset; | |
993 | ||
994 | /* | |
995 | * The v4l2_pix_format structure has been extended with fields that were | |
996 | * not previously required to be set to zero by applications. The priv | |
997 | * field, when set to a magic value, indicates the the extended fields | |
998 | * are valid. Otherwise they will contain undefined values. To simplify | |
999 | * the API towards drivers zero the extended fields and set the priv | |
1000 | * field to the magic value when the extended pixel format structure | |
1001 | * isn't used by applications. | |
1002 | */ | |
1003 | ||
1004 | if (fmt->type != V4L2_BUF_TYPE_VIDEO_CAPTURE && | |
1005 | fmt->type != V4L2_BUF_TYPE_VIDEO_OUTPUT) | |
1006 | return; | |
1007 | ||
1008 | if (fmt->fmt.pix.priv == V4L2_PIX_FMT_PRIV_MAGIC) | |
1009 | return; | |
1010 | ||
1011 | fmt->fmt.pix.priv = V4L2_PIX_FMT_PRIV_MAGIC; | |
1012 | ||
1013 | offset = offsetof(struct v4l2_pix_format, priv) | |
1014 | + sizeof(fmt->fmt.pix.priv); | |
1015 | memset(((void *)&fmt->fmt.pix) + offset, 0, | |
1016 | sizeof(fmt->fmt.pix) - offset); | |
1017 | } | |
1018 | ||
59076122 HV |
1019 | static int v4l_querycap(const struct v4l2_ioctl_ops *ops, |
1020 | struct file *file, void *fh, void *arg) | |
1021 | { | |
1022 | struct v4l2_capability *cap = (struct v4l2_capability *)arg; | |
7bbe7813 | 1023 | struct video_device *vfd = video_devdata(file); |
d52e2381 | 1024 | int ret; |
59076122 HV |
1025 | |
1026 | cap->version = LINUX_VERSION_CODE; | |
7bbe7813 HV |
1027 | cap->device_caps = vfd->device_caps; |
1028 | cap->capabilities = vfd->device_caps | V4L2_CAP_DEVICE_CAPS; | |
d52e2381 LP |
1029 | |
1030 | ret = ops->vidioc_querycap(file, fh, cap); | |
1031 | ||
1032 | cap->capabilities |= V4L2_CAP_EXT_PIX_FORMAT; | |
454a4e72 HV |
1033 | /* |
1034 | * Drivers MUST fill in device_caps, so check for this and | |
1035 | * warn if it was forgotten. | |
1036 | */ | |
6d7570c4 LA |
1037 | WARN(!(cap->capabilities & V4L2_CAP_DEVICE_CAPS) || |
1038 | !cap->device_caps, "Bad caps for driver %s, %x %x", | |
1039 | cap->driver, cap->capabilities, cap->device_caps); | |
796a2bd2 | 1040 | cap->device_caps |= V4L2_CAP_EXT_PIX_FORMAT; |
d52e2381 LP |
1041 | |
1042 | return ret; | |
59076122 HV |
1043 | } |
1044 | ||
1045 | static int v4l_s_input(const struct v4l2_ioctl_ops *ops, | |
1046 | struct file *file, void *fh, void *arg) | |
1047 | { | |
77fa4e07 SK |
1048 | struct video_device *vfd = video_devdata(file); |
1049 | int ret; | |
1050 | ||
1051 | ret = v4l_enable_media_source(vfd); | |
1052 | if (ret) | |
1053 | return ret; | |
59076122 HV |
1054 | return ops->vidioc_s_input(file, fh, *(unsigned int *)arg); |
1055 | } | |
1056 | ||
1057 | static int v4l_s_output(const struct v4l2_ioctl_ops *ops, | |
1058 | struct file *file, void *fh, void *arg) | |
1059 | { | |
1060 | return ops->vidioc_s_output(file, fh, *(unsigned int *)arg); | |
1061 | } | |
1062 | ||
d0547cba HV |
1063 | static int v4l_g_priority(const struct v4l2_ioctl_ops *ops, |
1064 | struct file *file, void *fh, void *arg) | |
1065 | { | |
1066 | struct video_device *vfd; | |
1067 | u32 *p = arg; | |
1068 | ||
d0547cba | 1069 | vfd = video_devdata(file); |
59b702ea | 1070 | *p = v4l2_prio_max(vfd->prio); |
d0547cba HV |
1071 | return 0; |
1072 | } | |
1073 | ||
1074 | static int v4l_s_priority(const struct v4l2_ioctl_ops *ops, | |
1075 | struct file *file, void *fh, void *arg) | |
1076 | { | |
1077 | struct video_device *vfd; | |
1078 | struct v4l2_fh *vfh; | |
1079 | u32 *p = arg; | |
1080 | ||
d0547cba | 1081 | vfd = video_devdata(file); |
2438e78a HV |
1082 | if (!test_bit(V4L2_FL_USES_V4L2_FH, &vfd->flags)) |
1083 | return -ENOTTY; | |
d0547cba | 1084 | vfh = file->private_data; |
59b702ea | 1085 | return v4l2_prio_change(vfd->prio, &vfh->prio, *p); |
d0547cba HV |
1086 | } |
1087 | ||
59076122 HV |
1088 | static int v4l_enuminput(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_input *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 input, it must override these flags. | |
1099 | */ | |
73f35418 | 1100 | if (is_valid_ioctl(vfd, VIDIOC_S_STD)) |
59076122 | 1101 | p->capabilities |= V4L2_IN_CAP_STD; |
59076122 HV |
1102 | |
1103 | return ops->vidioc_enum_input(file, fh, p); | |
1104 | } | |
1105 | ||
1106 | static int v4l_enumoutput(const struct v4l2_ioctl_ops *ops, | |
1107 | struct file *file, void *fh, void *arg) | |
1108 | { | |
73f35418 | 1109 | struct video_device *vfd = video_devdata(file); |
59076122 HV |
1110 | struct v4l2_output *p = arg; |
1111 | ||
1112 | /* | |
02fa6282 | 1113 | * We set the flags for CAP_DV_TIMINGS & |
59076122 HV |
1114 | * CAP_STD here based on ioctl handler provided by the |
1115 | * driver. If the driver doesn't support these | |
1116 | * for a specific output, it must override these flags. | |
1117 | */ | |
73f35418 | 1118 | if (is_valid_ioctl(vfd, VIDIOC_S_STD)) |
59076122 | 1119 | p->capabilities |= V4L2_OUT_CAP_STD; |
59076122 HV |
1120 | |
1121 | return ops->vidioc_enum_output(file, fh, p); | |
1122 | } | |
1123 | ||
ba300204 HV |
1124 | static void v4l_fill_fmtdesc(struct v4l2_fmtdesc *fmt) |
1125 | { | |
1126 | const unsigned sz = sizeof(fmt->description); | |
1127 | const char *descr = NULL; | |
1128 | u32 flags = 0; | |
1129 | ||
1130 | /* | |
1131 | * We depart from the normal coding style here since the descriptions | |
1132 | * should be aligned so it is easy to see which descriptions will be | |
1133 | * longer than 31 characters (the max length for a description). | |
1134 | * And frankly, this is easier to read anyway. | |
1135 | * | |
1136 | * Note that gcc will use O(log N) comparisons to find the right case. | |
1137 | */ | |
1138 | switch (fmt->pixelformat) { | |
1139 | /* Max description length mask: descr = "0123456789012345678901234567890" */ | |
1140 | case V4L2_PIX_FMT_RGB332: descr = "8-bit RGB 3-3-2"; break; | |
1141 | case V4L2_PIX_FMT_RGB444: descr = "16-bit A/XRGB 4-4-4-4"; break; | |
1142 | case V4L2_PIX_FMT_ARGB444: descr = "16-bit ARGB 4-4-4-4"; break; | |
1143 | case V4L2_PIX_FMT_XRGB444: descr = "16-bit XRGB 4-4-4-4"; break; | |
1144 | case V4L2_PIX_FMT_RGB555: descr = "16-bit A/XRGB 1-5-5-5"; break; | |
1145 | case V4L2_PIX_FMT_ARGB555: descr = "16-bit ARGB 1-5-5-5"; break; | |
1146 | case V4L2_PIX_FMT_XRGB555: descr = "16-bit XRGB 1-5-5-5"; break; | |
1147 | case V4L2_PIX_FMT_RGB565: descr = "16-bit RGB 5-6-5"; break; | |
1148 | case V4L2_PIX_FMT_RGB555X: descr = "16-bit A/XRGB 1-5-5-5 BE"; break; | |
1149 | case V4L2_PIX_FMT_ARGB555X: descr = "16-bit ARGB 1-5-5-5 BE"; break; | |
1150 | case V4L2_PIX_FMT_XRGB555X: descr = "16-bit XRGB 1-5-5-5 BE"; break; | |
1151 | case V4L2_PIX_FMT_RGB565X: descr = "16-bit RGB 5-6-5 BE"; break; | |
1152 | case V4L2_PIX_FMT_BGR666: descr = "18-bit BGRX 6-6-6-14"; break; | |
1153 | case V4L2_PIX_FMT_BGR24: descr = "24-bit BGR 8-8-8"; break; | |
1154 | case V4L2_PIX_FMT_RGB24: descr = "24-bit RGB 8-8-8"; break; | |
1155 | case V4L2_PIX_FMT_BGR32: descr = "32-bit BGRA/X 8-8-8-8"; break; | |
1156 | case V4L2_PIX_FMT_ABGR32: descr = "32-bit BGRA 8-8-8-8"; break; | |
1157 | case V4L2_PIX_FMT_XBGR32: descr = "32-bit BGRX 8-8-8-8"; break; | |
1158 | case V4L2_PIX_FMT_RGB32: descr = "32-bit A/XRGB 8-8-8-8"; break; | |
1159 | case V4L2_PIX_FMT_ARGB32: descr = "32-bit ARGB 8-8-8-8"; break; | |
1160 | case V4L2_PIX_FMT_XRGB32: descr = "32-bit XRGB 8-8-8-8"; break; | |
1161 | case V4L2_PIX_FMT_GREY: descr = "8-bit Greyscale"; break; | |
1162 | case V4L2_PIX_FMT_Y4: descr = "4-bit Greyscale"; break; | |
1163 | case V4L2_PIX_FMT_Y6: descr = "6-bit Greyscale"; break; | |
1164 | case V4L2_PIX_FMT_Y10: descr = "10-bit Greyscale"; break; | |
1165 | case V4L2_PIX_FMT_Y12: descr = "12-bit Greyscale"; break; | |
1166 | case V4L2_PIX_FMT_Y16: descr = "16-bit Greyscale"; break; | |
2e5e435f | 1167 | case V4L2_PIX_FMT_Y16_BE: descr = "16-bit Greyscale BE"; break; |
ba300204 HV |
1168 | case V4L2_PIX_FMT_Y10BPACK: descr = "10-bit Greyscale (Packed)"; break; |
1169 | case V4L2_PIX_FMT_PAL8: descr = "8-bit Palette"; break; | |
1170 | case V4L2_PIX_FMT_UV8: descr = "8-bit Chrominance UV 4-4"; break; | |
1171 | case V4L2_PIX_FMT_YVU410: descr = "Planar YVU 4:1:0"; break; | |
1172 | case V4L2_PIX_FMT_YVU420: descr = "Planar YVU 4:2:0"; break; | |
1173 | case V4L2_PIX_FMT_YUYV: descr = "YUYV 4:2:2"; break; | |
1174 | case V4L2_PIX_FMT_YYUV: descr = "YYUV 4:2:2"; break; | |
1175 | case V4L2_PIX_FMT_YVYU: descr = "YVYU 4:2:2"; break; | |
1176 | case V4L2_PIX_FMT_UYVY: descr = "UYVY 4:2:2"; break; | |
1177 | case V4L2_PIX_FMT_VYUY: descr = "VYUY 4:2:2"; break; | |
fcbafafb | 1178 | case V4L2_PIX_FMT_YUV422P: descr = "Planar YUV 4:2:2"; break; |
ba300204 HV |
1179 | case V4L2_PIX_FMT_YUV411P: descr = "Planar YUV 4:1:1"; break; |
1180 | case V4L2_PIX_FMT_Y41P: descr = "YUV 4:1:1 (Packed)"; break; | |
1181 | case V4L2_PIX_FMT_YUV444: descr = "16-bit A/XYUV 4-4-4-4"; break; | |
1182 | case V4L2_PIX_FMT_YUV555: descr = "16-bit A/XYUV 1-5-5-5"; break; | |
1183 | case V4L2_PIX_FMT_YUV565: descr = "16-bit YUV 5-6-5"; break; | |
1184 | case V4L2_PIX_FMT_YUV32: descr = "32-bit A/XYUV 8-8-8-8"; break; | |
1185 | case V4L2_PIX_FMT_YUV410: descr = "Planar YUV 4:1:0"; break; | |
1186 | case V4L2_PIX_FMT_YUV420: descr = "Planar YUV 4:2:0"; break; | |
1187 | case V4L2_PIX_FMT_HI240: descr = "8-bit Dithered RGB (BTTV)"; break; | |
1188 | case V4L2_PIX_FMT_HM12: descr = "YUV 4:2:0 (16x16 Macroblocks)"; break; | |
1189 | case V4L2_PIX_FMT_M420: descr = "YUV 4:2:0 (M420)"; break; | |
1190 | case V4L2_PIX_FMT_NV12: descr = "Y/CbCr 4:2:0"; break; | |
1191 | case V4L2_PIX_FMT_NV21: descr = "Y/CrCb 4:2:0"; break; | |
1192 | case V4L2_PIX_FMT_NV16: descr = "Y/CbCr 4:2:2"; break; | |
1193 | case V4L2_PIX_FMT_NV61: descr = "Y/CrCb 4:2:2"; break; | |
1194 | case V4L2_PIX_FMT_NV24: descr = "Y/CbCr 4:4:4"; break; | |
1195 | case V4L2_PIX_FMT_NV42: descr = "Y/CrCb 4:4:4"; break; | |
1196 | case V4L2_PIX_FMT_NV12M: descr = "Y/CbCr 4:2:0 (N-C)"; break; | |
1197 | case V4L2_PIX_FMT_NV21M: descr = "Y/CrCb 4:2:0 (N-C)"; break; | |
1198 | case V4L2_PIX_FMT_NV16M: descr = "Y/CbCr 4:2:2 (N-C)"; break; | |
1199 | case V4L2_PIX_FMT_NV61M: descr = "Y/CrCb 4:2:2 (N-C)"; break; | |
1200 | case V4L2_PIX_FMT_NV12MT: descr = "Y/CbCr 4:2:0 (64x32 MB, N-C)"; break; | |
1201 | case V4L2_PIX_FMT_NV12MT_16X16: descr = "Y/CbCr 4:2:0 (16x16 MB, N-C)"; break; | |
1202 | case V4L2_PIX_FMT_YUV420M: descr = "Planar YUV 4:2:0 (N-C)"; break; | |
1203 | case V4L2_PIX_FMT_YVU420M: descr = "Planar YVU 4:2:0 (N-C)"; break; | |
d65fae92 LP |
1204 | case V4L2_PIX_FMT_YUV422M: descr = "Planar YUV 4:2:2 (N-C)"; break; |
1205 | case V4L2_PIX_FMT_YVU422M: descr = "Planar YVU 4:2:2 (N-C)"; break; | |
1206 | case V4L2_PIX_FMT_YUV444M: descr = "Planar YUV 4:4:4 (N-C)"; break; | |
1207 | case V4L2_PIX_FMT_YVU444M: descr = "Planar YVU 4:4:4 (N-C)"; break; | |
ba300204 HV |
1208 | case V4L2_PIX_FMT_SBGGR8: descr = "8-bit Bayer BGBG/GRGR"; break; |
1209 | case V4L2_PIX_FMT_SGBRG8: descr = "8-bit Bayer GBGB/RGRG"; break; | |
1210 | case V4L2_PIX_FMT_SGRBG8: descr = "8-bit Bayer GRGR/BGBG"; break; | |
1211 | case V4L2_PIX_FMT_SRGGB8: descr = "8-bit Bayer RGRG/GBGB"; break; | |
1212 | case V4L2_PIX_FMT_SBGGR10: descr = "10-bit Bayer BGBG/GRGR"; break; | |
1213 | case V4L2_PIX_FMT_SGBRG10: descr = "10-bit Bayer GBGB/RGRG"; break; | |
1214 | case V4L2_PIX_FMT_SGRBG10: descr = "10-bit Bayer GRGR/BGBG"; break; | |
1215 | case V4L2_PIX_FMT_SRGGB10: descr = "10-bit Bayer RGRG/GBGB"; break; | |
1216 | case V4L2_PIX_FMT_SBGGR12: descr = "12-bit Bayer BGBG/GRGR"; break; | |
1217 | case V4L2_PIX_FMT_SGBRG12: descr = "12-bit Bayer GBGB/RGRG"; break; | |
1218 | case V4L2_PIX_FMT_SGRBG12: descr = "12-bit Bayer GRGR/BGBG"; break; | |
1219 | case V4L2_PIX_FMT_SRGGB12: descr = "12-bit Bayer RGRG/GBGB"; break; | |
1220 | case V4L2_PIX_FMT_SBGGR10P: descr = "10-bit Bayer BGBG/GRGR Packed"; break; | |
1221 | case V4L2_PIX_FMT_SGBRG10P: descr = "10-bit Bayer GBGB/RGRG Packed"; break; | |
1222 | case V4L2_PIX_FMT_SGRBG10P: descr = "10-bit Bayer GRGR/BGBG Packed"; break; | |
1223 | case V4L2_PIX_FMT_SRGGB10P: descr = "10-bit Bayer RGRG/GBGB Packed"; break; | |
1224 | case V4L2_PIX_FMT_SBGGR10ALAW8: descr = "8-bit Bayer BGBG/GRGR (A-law)"; break; | |
1225 | case V4L2_PIX_FMT_SGBRG10ALAW8: descr = "8-bit Bayer GBGB/RGRG (A-law)"; break; | |
1226 | case V4L2_PIX_FMT_SGRBG10ALAW8: descr = "8-bit Bayer GRGR/BGBG (A-law)"; break; | |
1227 | case V4L2_PIX_FMT_SRGGB10ALAW8: descr = "8-bit Bayer RGRG/GBGB (A-law)"; break; | |
1228 | case V4L2_PIX_FMT_SBGGR10DPCM8: descr = "8-bit Bayer BGBG/GRGR (DPCM)"; break; | |
1229 | case V4L2_PIX_FMT_SGBRG10DPCM8: descr = "8-bit Bayer GBGB/RGRG (DPCM)"; break; | |
1230 | case V4L2_PIX_FMT_SGRBG10DPCM8: descr = "8-bit Bayer GRGR/BGBG (DPCM)"; break; | |
1231 | case V4L2_PIX_FMT_SRGGB10DPCM8: descr = "8-bit Bayer RGRG/GBGB (DPCM)"; break; | |
1232 | case V4L2_PIX_FMT_SBGGR16: descr = "16-bit Bayer BGBG/GRGR (Exp.)"; break; | |
99b74277 | 1233 | case V4L2_PIX_FMT_SN9C20X_I420: descr = "GSPCA SN9C20X I420"; break; |
ba300204 HV |
1234 | case V4L2_PIX_FMT_SPCA501: descr = "GSPCA SPCA501"; break; |
1235 | case V4L2_PIX_FMT_SPCA505: descr = "GSPCA SPCA505"; break; | |
1236 | case V4L2_PIX_FMT_SPCA508: descr = "GSPCA SPCA508"; break; | |
1237 | case V4L2_PIX_FMT_STV0680: descr = "GSPCA STV0680"; break; | |
1238 | case V4L2_PIX_FMT_TM6000: descr = "A/V + VBI Mux Packet"; break; | |
1239 | case V4L2_PIX_FMT_CIT_YYVYUY: descr = "GSPCA CIT YYVYUY"; break; | |
1240 | case V4L2_PIX_FMT_KONICA420: descr = "GSPCA KONICA420"; break; | |
48fc10aa AP |
1241 | case V4L2_SDR_FMT_CU8: descr = "Complex U8"; break; |
1242 | case V4L2_SDR_FMT_CU16LE: descr = "Complex U16LE"; break; | |
ba300204 HV |
1243 | case V4L2_SDR_FMT_CS8: descr = "Complex S8"; break; |
1244 | case V4L2_SDR_FMT_CS14LE: descr = "Complex S14LE"; break; | |
1245 | case V4L2_SDR_FMT_RU12LE: descr = "Real U12LE"; break; | |
1246 | ||
1247 | default: | |
1248 | /* Compressed formats */ | |
1249 | flags = V4L2_FMT_FLAG_COMPRESSED; | |
1250 | switch (fmt->pixelformat) { | |
1251 | /* Max description length mask: descr = "0123456789012345678901234567890" */ | |
1252 | case V4L2_PIX_FMT_MJPEG: descr = "Motion-JPEG"; break; | |
1253 | case V4L2_PIX_FMT_JPEG: descr = "JFIF JPEG"; break; | |
1254 | case V4L2_PIX_FMT_DV: descr = "1394"; break; | |
1255 | case V4L2_PIX_FMT_MPEG: descr = "MPEG-1/2/4"; break; | |
1256 | case V4L2_PIX_FMT_H264: descr = "H.264"; break; | |
1257 | case V4L2_PIX_FMT_H264_NO_SC: descr = "H.264 (No Start Codes)"; break; | |
1258 | case V4L2_PIX_FMT_H264_MVC: descr = "H.264 MVC"; break; | |
1259 | case V4L2_PIX_FMT_H263: descr = "H.263"; break; | |
1260 | case V4L2_PIX_FMT_MPEG1: descr = "MPEG-1 ES"; break; | |
1261 | case V4L2_PIX_FMT_MPEG2: descr = "MPEG-2 ES"; break; | |
1262 | case V4L2_PIX_FMT_MPEG4: descr = "MPEG-4 part 2 ES"; break; | |
1263 | case V4L2_PIX_FMT_XVID: descr = "Xvid"; break; | |
1264 | case V4L2_PIX_FMT_VC1_ANNEX_G: descr = "VC-1 (SMPTE 412M Annex G)"; break; | |
1265 | case V4L2_PIX_FMT_VC1_ANNEX_L: descr = "VC-1 (SMPTE 412M Annex L)"; break; | |
1266 | case V4L2_PIX_FMT_VP8: descr = "VP8"; break; | |
1267 | case V4L2_PIX_FMT_CPIA1: descr = "GSPCA CPiA YUV"; break; | |
1268 | case V4L2_PIX_FMT_WNVA: descr = "WNVA"; break; | |
1269 | case V4L2_PIX_FMT_SN9C10X: descr = "GSPCA SN9C10X"; break; | |
1270 | case V4L2_PIX_FMT_PWC1: descr = "Raw Philips Webcam Type (Old)"; break; | |
1271 | case V4L2_PIX_FMT_PWC2: descr = "Raw Philips Webcam Type (New)"; break; | |
1272 | case V4L2_PIX_FMT_ET61X251: descr = "GSPCA ET61X251"; break; | |
1273 | case V4L2_PIX_FMT_SPCA561: descr = "GSPCA SPCA561"; break; | |
1274 | case V4L2_PIX_FMT_PAC207: descr = "GSPCA PAC207"; break; | |
1275 | case V4L2_PIX_FMT_MR97310A: descr = "GSPCA MR97310A"; break; | |
1276 | case V4L2_PIX_FMT_JL2005BCD: descr = "GSPCA JL2005BCD"; break; | |
1277 | case V4L2_PIX_FMT_SN9C2028: descr = "GSPCA SN9C2028"; break; | |
1278 | case V4L2_PIX_FMT_SQ905C: descr = "GSPCA SQ905C"; break; | |
1279 | case V4L2_PIX_FMT_PJPG: descr = "GSPCA PJPG"; break; | |
1280 | case V4L2_PIX_FMT_OV511: descr = "GSPCA OV511"; break; | |
1281 | case V4L2_PIX_FMT_OV518: descr = "GSPCA OV518"; break; | |
1282 | case V4L2_PIX_FMT_JPGL: descr = "JPEG Lite"; break; | |
1283 | case V4L2_PIX_FMT_SE401: descr = "GSPCA SE401"; break; | |
1284 | case V4L2_PIX_FMT_S5C_UYVY_JPG: descr = "S5C73MX interleaved UYVY/JPEG"; break; | |
1285 | default: | |
1286 | WARN(1, "Unknown pixelformat 0x%08x\n", fmt->pixelformat); | |
1287 | if (fmt->description[0]) | |
1288 | return; | |
1289 | flags = 0; | |
1290 | snprintf(fmt->description, sz, "%c%c%c%c%s", | |
1291 | (char)(fmt->pixelformat & 0x7f), | |
1292 | (char)((fmt->pixelformat >> 8) & 0x7f), | |
1293 | (char)((fmt->pixelformat >> 16) & 0x7f), | |
1294 | (char)((fmt->pixelformat >> 24) & 0x7f), | |
1295 | (fmt->pixelformat & (1 << 31)) ? "-BE" : ""); | |
1296 | break; | |
1297 | } | |
1298 | } | |
1299 | ||
1300 | if (descr) | |
1301 | WARN_ON(strlcpy(fmt->description, descr, sz) >= sz); | |
1302 | fmt->flags = flags; | |
1303 | } | |
1304 | ||
be6c64e4 HV |
1305 | static int v4l_enum_fmt(const struct v4l2_ioctl_ops *ops, |
1306 | struct file *file, void *fh, void *arg) | |
1307 | { | |
1308 | struct v4l2_fmtdesc *p = arg; | |
4b20259f | 1309 | struct video_device *vfd = video_devdata(file); |
ce71bbc9 HV |
1310 | bool is_vid = vfd->vfl_type == VFL_TYPE_GRABBER; |
1311 | bool is_sdr = vfd->vfl_type == VFL_TYPE_SDR; | |
4b20259f HV |
1312 | bool is_rx = vfd->vfl_dir != VFL_DIR_TX; |
1313 | bool is_tx = vfd->vfl_dir != VFL_DIR_RX; | |
ba300204 | 1314 | int ret = -EINVAL; |
be6c64e4 HV |
1315 | |
1316 | switch (p->type) { | |
1317 | case V4L2_BUF_TYPE_VIDEO_CAPTURE: | |
ce71bbc9 | 1318 | if (unlikely(!is_rx || !is_vid || !ops->vidioc_enum_fmt_vid_cap)) |
be6c64e4 | 1319 | break; |
ba300204 HV |
1320 | ret = ops->vidioc_enum_fmt_vid_cap(file, fh, arg); |
1321 | break; | |
be6c64e4 | 1322 | case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE: |
ce71bbc9 | 1323 | if (unlikely(!is_rx || !is_vid || !ops->vidioc_enum_fmt_vid_cap_mplane)) |
be6c64e4 | 1324 | break; |
ba300204 HV |
1325 | ret = ops->vidioc_enum_fmt_vid_cap_mplane(file, fh, arg); |
1326 | break; | |
be6c64e4 | 1327 | case V4L2_BUF_TYPE_VIDEO_OVERLAY: |
ce71bbc9 | 1328 | if (unlikely(!is_rx || !is_vid || !ops->vidioc_enum_fmt_vid_overlay)) |
be6c64e4 | 1329 | break; |
ba300204 HV |
1330 | ret = ops->vidioc_enum_fmt_vid_overlay(file, fh, arg); |
1331 | break; | |
be6c64e4 | 1332 | case V4L2_BUF_TYPE_VIDEO_OUTPUT: |
ce71bbc9 | 1333 | if (unlikely(!is_tx || !is_vid || !ops->vidioc_enum_fmt_vid_out)) |
be6c64e4 | 1334 | break; |
ba300204 HV |
1335 | ret = ops->vidioc_enum_fmt_vid_out(file, fh, arg); |
1336 | break; | |
be6c64e4 | 1337 | case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE: |
ce71bbc9 | 1338 | if (unlikely(!is_tx || !is_vid || !ops->vidioc_enum_fmt_vid_out_mplane)) |
be6c64e4 | 1339 | break; |
ba300204 HV |
1340 | ret = ops->vidioc_enum_fmt_vid_out_mplane(file, fh, arg); |
1341 | break; | |
582c52cb | 1342 | case V4L2_BUF_TYPE_SDR_CAPTURE: |
ce71bbc9 | 1343 | if (unlikely(!is_rx || !is_sdr || !ops->vidioc_enum_fmt_sdr_cap)) |
582c52cb | 1344 | break; |
ba300204 HV |
1345 | ret = ops->vidioc_enum_fmt_sdr_cap(file, fh, arg); |
1346 | break; | |
9effc72f AP |
1347 | case V4L2_BUF_TYPE_SDR_OUTPUT: |
1348 | if (unlikely(!is_tx || !is_sdr || !ops->vidioc_enum_fmt_sdr_out)) | |
1349 | break; | |
1350 | ret = ops->vidioc_enum_fmt_sdr_out(file, fh, arg); | |
1351 | break; | |
be6c64e4 | 1352 | } |
ba300204 HV |
1353 | if (ret == 0) |
1354 | v4l_fill_fmtdesc(p); | |
1355 | return ret; | |
be6c64e4 HV |
1356 | } |
1357 | ||
1358 | static int v4l_g_fmt(const struct v4l2_ioctl_ops *ops, | |
1359 | struct file *file, void *fh, void *arg) | |
1360 | { | |
1361 | struct v4l2_format *p = arg; | |
4b20259f HV |
1362 | struct video_device *vfd = video_devdata(file); |
1363 | bool is_vid = vfd->vfl_type == VFL_TYPE_GRABBER; | |
582c52cb | 1364 | bool is_sdr = vfd->vfl_type == VFL_TYPE_SDR; |
4b20259f HV |
1365 | bool is_rx = vfd->vfl_dir != VFL_DIR_TX; |
1366 | bool is_tx = vfd->vfl_dir != VFL_DIR_RX; | |
d52e2381 LP |
1367 | int ret; |
1368 | ||
e5ce558a HV |
1369 | /* |
1370 | * fmt can't be cleared for these overlay types due to the 'clips' | |
1371 | * 'clipcount' and 'bitmap' pointers in struct v4l2_window. | |
1372 | * Those are provided by the user. So handle these two overlay types | |
1373 | * first, and then just do a simple memset for the other types. | |
1374 | */ | |
1375 | switch (p->type) { | |
1376 | case V4L2_BUF_TYPE_VIDEO_OVERLAY: | |
1377 | case V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY: { | |
4d1afa51 | 1378 | struct v4l2_clip __user *clips = p->fmt.win.clips; |
e5ce558a | 1379 | u32 clipcount = p->fmt.win.clipcount; |
4d1afa51 | 1380 | void __user *bitmap = p->fmt.win.bitmap; |
e5ce558a HV |
1381 | |
1382 | memset(&p->fmt, 0, sizeof(p->fmt)); | |
1383 | p->fmt.win.clips = clips; | |
1384 | p->fmt.win.clipcount = clipcount; | |
1385 | p->fmt.win.bitmap = bitmap; | |
1386 | break; | |
1387 | } | |
1388 | default: | |
1389 | memset(&p->fmt, 0, sizeof(p->fmt)); | |
1390 | break; | |
1391 | } | |
1392 | ||
be6c64e4 HV |
1393 | switch (p->type) { |
1394 | case V4L2_BUF_TYPE_VIDEO_CAPTURE: | |
4b20259f | 1395 | if (unlikely(!is_rx || !is_vid || !ops->vidioc_g_fmt_vid_cap)) |
be6c64e4 | 1396 | break; |
48f2650a | 1397 | p->fmt.pix.priv = V4L2_PIX_FMT_PRIV_MAGIC; |
d52e2381 | 1398 | ret = ops->vidioc_g_fmt_vid_cap(file, fh, arg); |
48f2650a | 1399 | /* just in case the driver zeroed it again */ |
d52e2381 LP |
1400 | p->fmt.pix.priv = V4L2_PIX_FMT_PRIV_MAGIC; |
1401 | return ret; | |
be6c64e4 | 1402 | case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE: |
4b20259f | 1403 | if (unlikely(!is_rx || !is_vid || !ops->vidioc_g_fmt_vid_cap_mplane)) |
be6c64e4 HV |
1404 | break; |
1405 | return ops->vidioc_g_fmt_vid_cap_mplane(file, fh, arg); | |
1406 | case V4L2_BUF_TYPE_VIDEO_OVERLAY: | |
4b20259f | 1407 | if (unlikely(!is_rx || !is_vid || !ops->vidioc_g_fmt_vid_overlay)) |
be6c64e4 HV |
1408 | break; |
1409 | return ops->vidioc_g_fmt_vid_overlay(file, fh, arg); | |
4b20259f HV |
1410 | case V4L2_BUF_TYPE_VBI_CAPTURE: |
1411 | if (unlikely(!is_rx || is_vid || !ops->vidioc_g_fmt_vbi_cap)) | |
1412 | break; | |
1413 | return ops->vidioc_g_fmt_vbi_cap(file, fh, arg); | |
1414 | case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE: | |
1415 | if (unlikely(!is_rx || is_vid || !ops->vidioc_g_fmt_sliced_vbi_cap)) | |
1416 | break; | |
1417 | return ops->vidioc_g_fmt_sliced_vbi_cap(file, fh, arg); | |
be6c64e4 | 1418 | case V4L2_BUF_TYPE_VIDEO_OUTPUT: |
4b20259f | 1419 | if (unlikely(!is_tx || !is_vid || !ops->vidioc_g_fmt_vid_out)) |
be6c64e4 | 1420 | break; |
48f2650a | 1421 | p->fmt.pix.priv = V4L2_PIX_FMT_PRIV_MAGIC; |
d52e2381 | 1422 | ret = ops->vidioc_g_fmt_vid_out(file, fh, arg); |
48f2650a | 1423 | /* just in case the driver zeroed it again */ |
d52e2381 LP |
1424 | p->fmt.pix.priv = V4L2_PIX_FMT_PRIV_MAGIC; |
1425 | return ret; | |
be6c64e4 | 1426 | case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE: |
4b20259f | 1427 | if (unlikely(!is_tx || !is_vid || !ops->vidioc_g_fmt_vid_out_mplane)) |
be6c64e4 HV |
1428 | break; |
1429 | return ops->vidioc_g_fmt_vid_out_mplane(file, fh, arg); | |
1430 | case V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY: | |
4b20259f | 1431 | if (unlikely(!is_tx || !is_vid || !ops->vidioc_g_fmt_vid_out_overlay)) |
be6c64e4 HV |
1432 | break; |
1433 | return ops->vidioc_g_fmt_vid_out_overlay(file, fh, arg); | |
be6c64e4 | 1434 | case V4L2_BUF_TYPE_VBI_OUTPUT: |
4b20259f | 1435 | if (unlikely(!is_tx || is_vid || !ops->vidioc_g_fmt_vbi_out)) |
be6c64e4 HV |
1436 | break; |
1437 | return ops->vidioc_g_fmt_vbi_out(file, fh, arg); | |
be6c64e4 | 1438 | case V4L2_BUF_TYPE_SLICED_VBI_OUTPUT: |
4b20259f | 1439 | if (unlikely(!is_tx || is_vid || !ops->vidioc_g_fmt_sliced_vbi_out)) |
be6c64e4 HV |
1440 | break; |
1441 | return ops->vidioc_g_fmt_sliced_vbi_out(file, fh, arg); | |
582c52cb AP |
1442 | case V4L2_BUF_TYPE_SDR_CAPTURE: |
1443 | if (unlikely(!is_rx || !is_sdr || !ops->vidioc_g_fmt_sdr_cap)) | |
1444 | break; | |
1445 | return ops->vidioc_g_fmt_sdr_cap(file, fh, arg); | |
9effc72f AP |
1446 | case V4L2_BUF_TYPE_SDR_OUTPUT: |
1447 | if (unlikely(!is_tx || !is_sdr || !ops->vidioc_g_fmt_sdr_out)) | |
1448 | break; | |
1449 | return ops->vidioc_g_fmt_sdr_out(file, fh, arg); | |
be6c64e4 HV |
1450 | } |
1451 | return -EINVAL; | |
1452 | } | |
1453 | ||
1454 | static int v4l_s_fmt(const struct v4l2_ioctl_ops *ops, | |
1455 | struct file *file, void *fh, void *arg) | |
1456 | { | |
1457 | struct v4l2_format *p = arg; | |
4b20259f HV |
1458 | struct video_device *vfd = video_devdata(file); |
1459 | bool is_vid = vfd->vfl_type == VFL_TYPE_GRABBER; | |
582c52cb | 1460 | bool is_sdr = vfd->vfl_type == VFL_TYPE_SDR; |
4b20259f HV |
1461 | bool is_rx = vfd->vfl_dir != VFL_DIR_TX; |
1462 | bool is_tx = vfd->vfl_dir != VFL_DIR_RX; | |
48f2650a | 1463 | int ret; |
be6c64e4 | 1464 | |
77fa4e07 SK |
1465 | ret = v4l_enable_media_source(vfd); |
1466 | if (ret) | |
1467 | return ret; | |
d52e2381 LP |
1468 | v4l_sanitize_format(p); |
1469 | ||
be6c64e4 HV |
1470 | switch (p->type) { |
1471 | case V4L2_BUF_TYPE_VIDEO_CAPTURE: | |
4b20259f | 1472 | if (unlikely(!is_rx || !is_vid || !ops->vidioc_s_fmt_vid_cap)) |
be6c64e4 HV |
1473 | break; |
1474 | CLEAR_AFTER_FIELD(p, fmt.pix); | |
48f2650a HV |
1475 | ret = ops->vidioc_s_fmt_vid_cap(file, fh, arg); |
1476 | /* just in case the driver zeroed it again */ | |
1477 | p->fmt.pix.priv = V4L2_PIX_FMT_PRIV_MAGIC; | |
1478 | return ret; | |
be6c64e4 | 1479 | case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE: |
4b20259f | 1480 | if (unlikely(!is_rx || !is_vid || !ops->vidioc_s_fmt_vid_cap_mplane)) |
be6c64e4 HV |
1481 | break; |
1482 | CLEAR_AFTER_FIELD(p, fmt.pix_mp); | |
1483 | return ops->vidioc_s_fmt_vid_cap_mplane(file, fh, arg); | |
1484 | case V4L2_BUF_TYPE_VIDEO_OVERLAY: | |
4b20259f | 1485 | if (unlikely(!is_rx || !is_vid || !ops->vidioc_s_fmt_vid_overlay)) |
be6c64e4 HV |
1486 | break; |
1487 | CLEAR_AFTER_FIELD(p, fmt.win); | |
1488 | return ops->vidioc_s_fmt_vid_overlay(file, fh, arg); | |
4b20259f HV |
1489 | case V4L2_BUF_TYPE_VBI_CAPTURE: |
1490 | if (unlikely(!is_rx || is_vid || !ops->vidioc_s_fmt_vbi_cap)) | |
1491 | break; | |
1492 | CLEAR_AFTER_FIELD(p, fmt.vbi); | |
1493 | return ops->vidioc_s_fmt_vbi_cap(file, fh, arg); | |
1494 | case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE: | |
1495 | if (unlikely(!is_rx || is_vid || !ops->vidioc_s_fmt_sliced_vbi_cap)) | |
1496 | break; | |
1497 | CLEAR_AFTER_FIELD(p, fmt.sliced); | |
1498 | return ops->vidioc_s_fmt_sliced_vbi_cap(file, fh, arg); | |
be6c64e4 | 1499 | case V4L2_BUF_TYPE_VIDEO_OUTPUT: |
4b20259f | 1500 | if (unlikely(!is_tx || !is_vid || !ops->vidioc_s_fmt_vid_out)) |
be6c64e4 HV |
1501 | break; |
1502 | CLEAR_AFTER_FIELD(p, fmt.pix); | |
48f2650a HV |
1503 | ret = ops->vidioc_s_fmt_vid_out(file, fh, arg); |
1504 | /* just in case the driver zeroed it again */ | |
1505 | p->fmt.pix.priv = V4L2_PIX_FMT_PRIV_MAGIC; | |
1506 | return ret; | |
be6c64e4 | 1507 | case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE: |
4b20259f | 1508 | if (unlikely(!is_tx || !is_vid || !ops->vidioc_s_fmt_vid_out_mplane)) |
be6c64e4 HV |
1509 | break; |
1510 | CLEAR_AFTER_FIELD(p, fmt.pix_mp); | |
1511 | return ops->vidioc_s_fmt_vid_out_mplane(file, fh, arg); | |
1512 | case V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY: | |
4b20259f | 1513 | if (unlikely(!is_tx || !is_vid || !ops->vidioc_s_fmt_vid_out_overlay)) |
be6c64e4 HV |
1514 | break; |
1515 | CLEAR_AFTER_FIELD(p, fmt.win); | |
1516 | return ops->vidioc_s_fmt_vid_out_overlay(file, fh, arg); | |
be6c64e4 | 1517 | case V4L2_BUF_TYPE_VBI_OUTPUT: |
4b20259f | 1518 | if (unlikely(!is_tx || is_vid || !ops->vidioc_s_fmt_vbi_out)) |
be6c64e4 HV |
1519 | break; |
1520 | CLEAR_AFTER_FIELD(p, fmt.vbi); | |
1521 | return ops->vidioc_s_fmt_vbi_out(file, fh, arg); | |
be6c64e4 | 1522 | case V4L2_BUF_TYPE_SLICED_VBI_OUTPUT: |
4b20259f | 1523 | if (unlikely(!is_tx || is_vid || !ops->vidioc_s_fmt_sliced_vbi_out)) |
be6c64e4 HV |
1524 | break; |
1525 | CLEAR_AFTER_FIELD(p, fmt.sliced); | |
1526 | return ops->vidioc_s_fmt_sliced_vbi_out(file, fh, arg); | |
582c52cb AP |
1527 | case V4L2_BUF_TYPE_SDR_CAPTURE: |
1528 | if (unlikely(!is_rx || !is_sdr || !ops->vidioc_s_fmt_sdr_cap)) | |
1529 | break; | |
1530 | CLEAR_AFTER_FIELD(p, fmt.sdr); | |
1531 | return ops->vidioc_s_fmt_sdr_cap(file, fh, arg); | |
9effc72f AP |
1532 | case V4L2_BUF_TYPE_SDR_OUTPUT: |
1533 | if (unlikely(!is_tx || !is_sdr || !ops->vidioc_s_fmt_sdr_out)) | |
1534 | break; | |
1535 | CLEAR_AFTER_FIELD(p, fmt.sdr); | |
1536 | return ops->vidioc_s_fmt_sdr_out(file, fh, arg); | |
be6c64e4 HV |
1537 | } |
1538 | return -EINVAL; | |
1539 | } | |
1540 | ||
1541 | static int v4l_try_fmt(const struct v4l2_ioctl_ops *ops, | |
1542 | struct file *file, void *fh, void *arg) | |
1543 | { | |
1544 | struct v4l2_format *p = arg; | |
4b20259f HV |
1545 | struct video_device *vfd = video_devdata(file); |
1546 | bool is_vid = vfd->vfl_type == VFL_TYPE_GRABBER; | |
582c52cb | 1547 | bool is_sdr = vfd->vfl_type == VFL_TYPE_SDR; |
4b20259f HV |
1548 | bool is_rx = vfd->vfl_dir != VFL_DIR_TX; |
1549 | bool is_tx = vfd->vfl_dir != VFL_DIR_RX; | |
48f2650a | 1550 | int ret; |
be6c64e4 | 1551 | |
d52e2381 LP |
1552 | v4l_sanitize_format(p); |
1553 | ||
be6c64e4 HV |
1554 | switch (p->type) { |
1555 | case V4L2_BUF_TYPE_VIDEO_CAPTURE: | |
4b20259f | 1556 | if (unlikely(!is_rx || !is_vid || !ops->vidioc_try_fmt_vid_cap)) |
be6c64e4 HV |
1557 | break; |
1558 | CLEAR_AFTER_FIELD(p, fmt.pix); | |
48f2650a HV |
1559 | ret = ops->vidioc_try_fmt_vid_cap(file, fh, arg); |
1560 | /* just in case the driver zeroed it again */ | |
1561 | p->fmt.pix.priv = V4L2_PIX_FMT_PRIV_MAGIC; | |
1562 | return ret; | |
be6c64e4 | 1563 | case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE: |
4b20259f | 1564 | if (unlikely(!is_rx || !is_vid || !ops->vidioc_try_fmt_vid_cap_mplane)) |
be6c64e4 HV |
1565 | break; |
1566 | CLEAR_AFTER_FIELD(p, fmt.pix_mp); | |
1567 | return ops->vidioc_try_fmt_vid_cap_mplane(file, fh, arg); | |
1568 | case V4L2_BUF_TYPE_VIDEO_OVERLAY: | |
4b20259f | 1569 | if (unlikely(!is_rx || !is_vid || !ops->vidioc_try_fmt_vid_overlay)) |
be6c64e4 HV |
1570 | break; |
1571 | CLEAR_AFTER_FIELD(p, fmt.win); | |
1572 | return ops->vidioc_try_fmt_vid_overlay(file, fh, arg); | |
4b20259f HV |
1573 | case V4L2_BUF_TYPE_VBI_CAPTURE: |
1574 | if (unlikely(!is_rx || is_vid || !ops->vidioc_try_fmt_vbi_cap)) | |
1575 | break; | |
1576 | CLEAR_AFTER_FIELD(p, fmt.vbi); | |
1577 | return ops->vidioc_try_fmt_vbi_cap(file, fh, arg); | |
1578 | case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE: | |
1579 | if (unlikely(!is_rx || is_vid || !ops->vidioc_try_fmt_sliced_vbi_cap)) | |
1580 | break; | |
1581 | CLEAR_AFTER_FIELD(p, fmt.sliced); | |
1582 | return ops->vidioc_try_fmt_sliced_vbi_cap(file, fh, arg); | |
be6c64e4 | 1583 | case V4L2_BUF_TYPE_VIDEO_OUTPUT: |
4b20259f | 1584 | if (unlikely(!is_tx || !is_vid || !ops->vidioc_try_fmt_vid_out)) |
be6c64e4 HV |
1585 | break; |
1586 | CLEAR_AFTER_FIELD(p, fmt.pix); | |
48f2650a HV |
1587 | ret = ops->vidioc_try_fmt_vid_out(file, fh, arg); |
1588 | /* just in case the driver zeroed it again */ | |
1589 | p->fmt.pix.priv = V4L2_PIX_FMT_PRIV_MAGIC; | |
1590 | return ret; | |
be6c64e4 | 1591 | case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE: |
4b20259f | 1592 | if (unlikely(!is_tx || !is_vid || !ops->vidioc_try_fmt_vid_out_mplane)) |
be6c64e4 HV |
1593 | break; |
1594 | CLEAR_AFTER_FIELD(p, fmt.pix_mp); | |
1595 | return ops->vidioc_try_fmt_vid_out_mplane(file, fh, arg); | |
1596 | case V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY: | |
4b20259f | 1597 | if (unlikely(!is_tx || !is_vid || !ops->vidioc_try_fmt_vid_out_overlay)) |
be6c64e4 HV |
1598 | break; |
1599 | CLEAR_AFTER_FIELD(p, fmt.win); | |
1600 | return ops->vidioc_try_fmt_vid_out_overlay(file, fh, arg); | |
be6c64e4 | 1601 | case V4L2_BUF_TYPE_VBI_OUTPUT: |
4b20259f | 1602 | if (unlikely(!is_tx || is_vid || !ops->vidioc_try_fmt_vbi_out)) |
be6c64e4 HV |
1603 | break; |
1604 | CLEAR_AFTER_FIELD(p, fmt.vbi); | |
1605 | return ops->vidioc_try_fmt_vbi_out(file, fh, arg); | |
be6c64e4 | 1606 | case V4L2_BUF_TYPE_SLICED_VBI_OUTPUT: |
4b20259f | 1607 | if (unlikely(!is_tx || is_vid || !ops->vidioc_try_fmt_sliced_vbi_out)) |
be6c64e4 HV |
1608 | break; |
1609 | CLEAR_AFTER_FIELD(p, fmt.sliced); | |
1610 | return ops->vidioc_try_fmt_sliced_vbi_out(file, fh, arg); | |
582c52cb AP |
1611 | case V4L2_BUF_TYPE_SDR_CAPTURE: |
1612 | if (unlikely(!is_rx || !is_sdr || !ops->vidioc_try_fmt_sdr_cap)) | |
1613 | break; | |
1614 | CLEAR_AFTER_FIELD(p, fmt.sdr); | |
1615 | return ops->vidioc_try_fmt_sdr_cap(file, fh, arg); | |
9effc72f AP |
1616 | case V4L2_BUF_TYPE_SDR_OUTPUT: |
1617 | if (unlikely(!is_tx || !is_sdr || !ops->vidioc_try_fmt_sdr_out)) | |
1618 | break; | |
1619 | CLEAR_AFTER_FIELD(p, fmt.sdr); | |
1620 | return ops->vidioc_try_fmt_sdr_out(file, fh, arg); | |
be6c64e4 HV |
1621 | } |
1622 | return -EINVAL; | |
1623 | } | |
1624 | ||
e325b244 HV |
1625 | static int v4l_streamon(const struct v4l2_ioctl_ops *ops, |
1626 | struct file *file, void *fh, void *arg) | |
1627 | { | |
1628 | return ops->vidioc_streamon(file, fh, *(unsigned int *)arg); | |
1629 | } | |
1630 | ||
1631 | static int v4l_streamoff(const struct v4l2_ioctl_ops *ops, | |
1632 | struct file *file, void *fh, void *arg) | |
1633 | { | |
1634 | return ops->vidioc_streamoff(file, fh, *(unsigned int *)arg); | |
1635 | } | |
1636 | ||
4b1e2e4d HV |
1637 | static int v4l_g_tuner(const struct v4l2_ioctl_ops *ops, |
1638 | struct file *file, void *fh, void *arg) | |
1639 | { | |
1640 | struct video_device *vfd = video_devdata(file); | |
1641 | struct v4l2_tuner *p = arg; | |
82b655bf | 1642 | int err; |
4b1e2e4d HV |
1643 | |
1644 | p->type = (vfd->vfl_type == VFL_TYPE_RADIO) ? | |
1645 | V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV; | |
82b655bf HV |
1646 | err = ops->vidioc_g_tuner(file, fh, p); |
1647 | if (!err) | |
1648 | p->capability |= V4L2_TUNER_CAP_FREQ_BANDS; | |
1649 | return err; | |
4b1e2e4d HV |
1650 | } |
1651 | ||
1652 | static int v4l_s_tuner(const struct v4l2_ioctl_ops *ops, | |
1653 | struct file *file, void *fh, void *arg) | |
1654 | { | |
1655 | struct video_device *vfd = video_devdata(file); | |
1656 | struct v4l2_tuner *p = arg; | |
77fa4e07 | 1657 | int ret; |
4b1e2e4d | 1658 | |
77fa4e07 SK |
1659 | ret = v4l_enable_media_source(vfd); |
1660 | if (ret) | |
1661 | return ret; | |
4b1e2e4d HV |
1662 | p->type = (vfd->vfl_type == VFL_TYPE_RADIO) ? |
1663 | V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV; | |
1664 | return ops->vidioc_s_tuner(file, fh, p); | |
1665 | } | |
1666 | ||
82b655bf HV |
1667 | static int v4l_g_modulator(const struct v4l2_ioctl_ops *ops, |
1668 | struct file *file, void *fh, void *arg) | |
1669 | { | |
4124a3c4 | 1670 | struct video_device *vfd = video_devdata(file); |
82b655bf HV |
1671 | struct v4l2_modulator *p = arg; |
1672 | int err; | |
1673 | ||
4124a3c4 AP |
1674 | if (vfd->vfl_type == VFL_TYPE_RADIO) |
1675 | p->type = V4L2_TUNER_RADIO; | |
1676 | ||
82b655bf HV |
1677 | err = ops->vidioc_g_modulator(file, fh, p); |
1678 | if (!err) | |
1679 | p->capability |= V4L2_TUNER_CAP_FREQ_BANDS; | |
1680 | return err; | |
1681 | } | |
1682 | ||
4124a3c4 AP |
1683 | static int v4l_s_modulator(const struct v4l2_ioctl_ops *ops, |
1684 | struct file *file, void *fh, void *arg) | |
1685 | { | |
1686 | struct video_device *vfd = video_devdata(file); | |
1687 | struct v4l2_modulator *p = arg; | |
1688 | ||
1689 | if (vfd->vfl_type == VFL_TYPE_RADIO) | |
1690 | p->type = V4L2_TUNER_RADIO; | |
1691 | ||
1692 | return ops->vidioc_s_modulator(file, fh, p); | |
1693 | } | |
1694 | ||
4b1e2e4d HV |
1695 | static int v4l_g_frequency(const struct v4l2_ioctl_ops *ops, |
1696 | struct file *file, void *fh, void *arg) | |
1697 | { | |
1698 | struct video_device *vfd = video_devdata(file); | |
1699 | struct v4l2_frequency *p = arg; | |
1700 | ||
84099a28 | 1701 | if (vfd->vfl_type == VFL_TYPE_SDR) |
f3c3ecec | 1702 | p->type = V4L2_TUNER_SDR; |
84099a28 AP |
1703 | else |
1704 | p->type = (vfd->vfl_type == VFL_TYPE_RADIO) ? | |
1705 | V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV; | |
4b1e2e4d HV |
1706 | return ops->vidioc_g_frequency(file, fh, p); |
1707 | } | |
1708 | ||
1709 | static int v4l_s_frequency(const struct v4l2_ioctl_ops *ops, | |
1710 | struct file *file, void *fh, void *arg) | |
1711 | { | |
1712 | struct video_device *vfd = video_devdata(file); | |
b530a447 | 1713 | const struct v4l2_frequency *p = arg; |
4b1e2e4d | 1714 | enum v4l2_tuner_type type; |
77fa4e07 | 1715 | int ret; |
4b1e2e4d | 1716 | |
77fa4e07 SK |
1717 | ret = v4l_enable_media_source(vfd); |
1718 | if (ret) | |
1719 | return ret; | |
84099a28 | 1720 | if (vfd->vfl_type == VFL_TYPE_SDR) { |
f3c3ecec | 1721 | if (p->type != V4L2_TUNER_SDR && p->type != V4L2_TUNER_RF) |
84099a28 AP |
1722 | return -EINVAL; |
1723 | } else { | |
1724 | type = (vfd->vfl_type == VFL_TYPE_RADIO) ? | |
1725 | V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV; | |
1726 | if (type != p->type) | |
1727 | return -EINVAL; | |
1728 | } | |
4b1e2e4d HV |
1729 | return ops->vidioc_s_frequency(file, fh, p); |
1730 | } | |
1731 | ||
1732 | static int v4l_enumstd(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_standard *p = arg; | |
1737 | v4l2_std_id id = vfd->tvnorms, curr_id = 0; | |
1738 | unsigned int index = p->index, i, j = 0; | |
1739 | const char *descr = ""; | |
1740 | ||
a5338190 HV |
1741 | /* Return -ENODATA if the tvnorms for the current input |
1742 | or output is 0, meaning that it doesn't support this API. */ | |
1743 | if (id == 0) | |
1744 | return -ENODATA; | |
1745 | ||
4b1e2e4d HV |
1746 | /* Return norm array in a canonical way */ |
1747 | for (i = 0; i <= index && id; i++) { | |
1748 | /* last std value in the standards array is 0, so this | |
1749 | while always ends there since (id & 0) == 0. */ | |
1750 | while ((id & standards[j].std) != standards[j].std) | |
1751 | j++; | |
1752 | curr_id = standards[j].std; | |
1753 | descr = standards[j].descr; | |
1754 | j++; | |
1755 | if (curr_id == 0) | |
1756 | break; | |
1757 | if (curr_id != V4L2_STD_PAL && | |
1758 | curr_id != V4L2_STD_SECAM && | |
1759 | curr_id != V4L2_STD_NTSC) | |
1760 | id &= ~curr_id; | |
1761 | } | |
1762 | if (i <= index) | |
1763 | return -EINVAL; | |
1764 | ||
1765 | v4l2_video_std_construct(p, curr_id, descr); | |
1766 | return 0; | |
1767 | } | |
1768 | ||
4b1e2e4d HV |
1769 | static int v4l_s_std(const struct v4l2_ioctl_ops *ops, |
1770 | struct file *file, void *fh, void *arg) | |
1771 | { | |
1772 | struct video_device *vfd = video_devdata(file); | |
314527ac | 1773 | v4l2_std_id id = *(v4l2_std_id *)arg, norm; |
77fa4e07 | 1774 | int ret; |
4b1e2e4d | 1775 | |
77fa4e07 SK |
1776 | ret = v4l_enable_media_source(vfd); |
1777 | if (ret) | |
1778 | return ret; | |
314527ac | 1779 | norm = id & vfd->tvnorms; |
4b1e2e4d HV |
1780 | if (vfd->tvnorms && !norm) /* Check if std is supported */ |
1781 | return -EINVAL; | |
1782 | ||
1783 | /* Calls the specific handler */ | |
ca371575 | 1784 | return ops->vidioc_s_std(file, fh, norm); |
4b1e2e4d HV |
1785 | } |
1786 | ||
1787 | static int v4l_querystd(const struct v4l2_ioctl_ops *ops, | |
1788 | struct file *file, void *fh, void *arg) | |
1789 | { | |
1790 | struct video_device *vfd = video_devdata(file); | |
1791 | v4l2_std_id *p = arg; | |
77fa4e07 | 1792 | int ret; |
4b1e2e4d | 1793 | |
77fa4e07 SK |
1794 | ret = v4l_enable_media_source(vfd); |
1795 | if (ret) | |
1796 | return ret; | |
4b1e2e4d | 1797 | /* |
1a2c6866 HV |
1798 | * If no signal is detected, then the driver should return |
1799 | * V4L2_STD_UNKNOWN. Otherwise it should return tvnorms with | |
1800 | * any standards that do not apply removed. | |
1801 | * | |
4b1e2e4d HV |
1802 | * This means that tuners, audio and video decoders can join |
1803 | * their efforts to improve the standards detection. | |
1804 | */ | |
1805 | *p = vfd->tvnorms; | |
1806 | return ops->vidioc_querystd(file, fh, arg); | |
1807 | } | |
1808 | ||
1809 | static int v4l_s_hw_freq_seek(const struct v4l2_ioctl_ops *ops, | |
1810 | struct file *file, void *fh, void *arg) | |
1811 | { | |
1812 | struct video_device *vfd = video_devdata(file); | |
1813 | struct v4l2_hw_freq_seek *p = arg; | |
1814 | enum v4l2_tuner_type type; | |
77fa4e07 | 1815 | int ret; |
4b1e2e4d | 1816 | |
77fa4e07 SK |
1817 | ret = v4l_enable_media_source(vfd); |
1818 | if (ret) | |
1819 | return ret; | |
84099a28 AP |
1820 | /* s_hw_freq_seek is not supported for SDR for now */ |
1821 | if (vfd->vfl_type == VFL_TYPE_SDR) | |
1822 | return -EINVAL; | |
1823 | ||
4b1e2e4d HV |
1824 | type = (vfd->vfl_type == VFL_TYPE_RADIO) ? |
1825 | V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV; | |
1826 | if (p->type != type) | |
1827 | return -EINVAL; | |
1828 | return ops->vidioc_s_hw_freq_seek(file, fh, p); | |
1829 | } | |
1830 | ||
737c097b HV |
1831 | static int v4l_overlay(const struct v4l2_ioctl_ops *ops, |
1832 | struct file *file, void *fh, void *arg) | |
1833 | { | |
1834 | return ops->vidioc_overlay(file, fh, *(unsigned int *)arg); | |
1835 | } | |
1836 | ||
eb3728ed HV |
1837 | static int v4l_reqbufs(const struct v4l2_ioctl_ops *ops, |
1838 | struct file *file, void *fh, void *arg) | |
1839 | { | |
1840 | struct v4l2_requestbuffers *p = arg; | |
4b20259f | 1841 | int ret = check_fmt(file, p->type); |
eb3728ed HV |
1842 | |
1843 | if (ret) | |
1844 | return ret; | |
1845 | ||
633c98e5 | 1846 | CLEAR_AFTER_FIELD(p, memory); |
eb3728ed HV |
1847 | |
1848 | return ops->vidioc_reqbufs(file, fh, p); | |
1849 | } | |
1850 | ||
1851 | static int v4l_querybuf(const struct v4l2_ioctl_ops *ops, | |
1852 | struct file *file, void *fh, void *arg) | |
1853 | { | |
1854 | struct v4l2_buffer *p = arg; | |
4b20259f | 1855 | int ret = check_fmt(file, p->type); |
eb3728ed HV |
1856 | |
1857 | return ret ? ret : ops->vidioc_querybuf(file, fh, p); | |
1858 | } | |
1859 | ||
1860 | static int v4l_qbuf(const struct v4l2_ioctl_ops *ops, | |
1861 | struct file *file, void *fh, void *arg) | |
1862 | { | |
1863 | struct v4l2_buffer *p = arg; | |
4b20259f | 1864 | int ret = check_fmt(file, p->type); |
eb3728ed HV |
1865 | |
1866 | return ret ? ret : ops->vidioc_qbuf(file, fh, p); | |
1867 | } | |
1868 | ||
1869 | static int v4l_dqbuf(const struct v4l2_ioctl_ops *ops, | |
1870 | struct file *file, void *fh, void *arg) | |
1871 | { | |
1872 | struct v4l2_buffer *p = arg; | |
4b20259f | 1873 | int ret = check_fmt(file, p->type); |
eb3728ed HV |
1874 | |
1875 | return ret ? ret : ops->vidioc_dqbuf(file, fh, p); | |
1876 | } | |
1877 | ||
1878 | static int v4l_create_bufs(const struct v4l2_ioctl_ops *ops, | |
1879 | struct file *file, void *fh, void *arg) | |
1880 | { | |
1881 | struct v4l2_create_buffers *create = arg; | |
4b20259f | 1882 | int ret = check_fmt(file, create->format.type); |
eb3728ed | 1883 | |
d52e2381 LP |
1884 | if (ret) |
1885 | return ret; | |
1886 | ||
5d351251 HV |
1887 | CLEAR_AFTER_FIELD(create, format); |
1888 | ||
d52e2381 LP |
1889 | v4l_sanitize_format(&create->format); |
1890 | ||
1891 | ret = ops->vidioc_create_bufs(file, fh, create); | |
1892 | ||
1893 | if (create->format.type == V4L2_BUF_TYPE_VIDEO_CAPTURE || | |
1894 | create->format.type == V4L2_BUF_TYPE_VIDEO_OUTPUT) | |
1895 | create->format.fmt.pix.priv = V4L2_PIX_FMT_PRIV_MAGIC; | |
1896 | ||
1897 | return ret; | |
eb3728ed HV |
1898 | } |
1899 | ||
1900 | static int v4l_prepare_buf(const struct v4l2_ioctl_ops *ops, | |
1901 | struct file *file, void *fh, void *arg) | |
1902 | { | |
1903 | struct v4l2_buffer *b = arg; | |
4b20259f | 1904 | int ret = check_fmt(file, b->type); |
eb3728ed HV |
1905 | |
1906 | return ret ? ret : ops->vidioc_prepare_buf(file, fh, b); | |
1907 | } | |
1908 | ||
1909 | static int v4l_g_parm(const struct v4l2_ioctl_ops *ops, | |
1910 | struct file *file, void *fh, void *arg) | |
1911 | { | |
eb3728ed HV |
1912 | struct v4l2_streamparm *p = arg; |
1913 | v4l2_std_id std; | |
4b20259f | 1914 | int ret = check_fmt(file, p->type); |
eb3728ed HV |
1915 | |
1916 | if (ret) | |
1917 | return ret; | |
1918 | if (ops->vidioc_g_parm) | |
1919 | return ops->vidioc_g_parm(file, fh, p); | |
eb3728ed HV |
1920 | if (p->type != V4L2_BUF_TYPE_VIDEO_CAPTURE && |
1921 | p->type != V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) | |
1922 | return -EINVAL; | |
1923 | p->parm.capture.readbuffers = 2; | |
ca371575 | 1924 | ret = ops->vidioc_g_std(file, fh, &std); |
eb3728ed | 1925 | if (ret == 0) |
ca371575 | 1926 | v4l2_video_std_frame_period(std, &p->parm.capture.timeperframe); |
eb3728ed HV |
1927 | return ret; |
1928 | } | |
1929 | ||
1930 | static int v4l_s_parm(const struct v4l2_ioctl_ops *ops, | |
1931 | struct file *file, void *fh, void *arg) | |
1932 | { | |
1933 | struct v4l2_streamparm *p = arg; | |
4b20259f | 1934 | int ret = check_fmt(file, p->type); |
eb3728ed HV |
1935 | |
1936 | return ret ? ret : ops->vidioc_s_parm(file, fh, p); | |
1937 | } | |
1938 | ||
efbceecd HV |
1939 | static int v4l_queryctrl(const struct v4l2_ioctl_ops *ops, |
1940 | struct file *file, void *fh, void *arg) | |
1941 | { | |
1942 | struct video_device *vfd = video_devdata(file); | |
1943 | struct v4l2_queryctrl *p = arg; | |
7a3ed2d9 HV |
1944 | struct v4l2_fh *vfh = |
1945 | test_bit(V4L2_FL_USES_V4L2_FH, &vfd->flags) ? fh : NULL; | |
efbceecd HV |
1946 | |
1947 | if (vfh && vfh->ctrl_handler) | |
1948 | return v4l2_queryctrl(vfh->ctrl_handler, p); | |
1949 | if (vfd->ctrl_handler) | |
1950 | return v4l2_queryctrl(vfd->ctrl_handler, p); | |
1951 | if (ops->vidioc_queryctrl) | |
1952 | return ops->vidioc_queryctrl(file, fh, p); | |
1953 | return -ENOTTY; | |
1954 | } | |
1955 | ||
e6bee368 HV |
1956 | static int v4l_query_ext_ctrl(const struct v4l2_ioctl_ops *ops, |
1957 | struct file *file, void *fh, void *arg) | |
1958 | { | |
1959 | struct video_device *vfd = video_devdata(file); | |
1960 | struct v4l2_query_ext_ctrl *p = arg; | |
1961 | struct v4l2_fh *vfh = | |
1962 | test_bit(V4L2_FL_USES_V4L2_FH, &vfd->flags) ? fh : NULL; | |
1963 | ||
1964 | if (vfh && vfh->ctrl_handler) | |
1965 | return v4l2_query_ext_ctrl(vfh->ctrl_handler, p); | |
1966 | if (vfd->ctrl_handler) | |
1967 | return v4l2_query_ext_ctrl(vfd->ctrl_handler, p); | |
1968 | if (ops->vidioc_query_ext_ctrl) | |
1969 | return ops->vidioc_query_ext_ctrl(file, fh, p); | |
1970 | return -ENOTTY; | |
1971 | } | |
1972 | ||
efbceecd HV |
1973 | static int v4l_querymenu(const struct v4l2_ioctl_ops *ops, |
1974 | struct file *file, void *fh, void *arg) | |
1975 | { | |
1976 | struct video_device *vfd = video_devdata(file); | |
1977 | struct v4l2_querymenu *p = arg; | |
7a3ed2d9 HV |
1978 | struct v4l2_fh *vfh = |
1979 | test_bit(V4L2_FL_USES_V4L2_FH, &vfd->flags) ? fh : NULL; | |
efbceecd HV |
1980 | |
1981 | if (vfh && vfh->ctrl_handler) | |
1982 | return v4l2_querymenu(vfh->ctrl_handler, p); | |
1983 | if (vfd->ctrl_handler) | |
1984 | return v4l2_querymenu(vfd->ctrl_handler, p); | |
1985 | if (ops->vidioc_querymenu) | |
1986 | return ops->vidioc_querymenu(file, fh, p); | |
1987 | return -ENOTTY; | |
1988 | } | |
1989 | ||
1990 | static int v4l_g_ctrl(const struct v4l2_ioctl_ops *ops, | |
1991 | struct file *file, void *fh, void *arg) | |
1992 | { | |
1993 | struct video_device *vfd = video_devdata(file); | |
1994 | struct v4l2_control *p = arg; | |
7a3ed2d9 HV |
1995 | struct v4l2_fh *vfh = |
1996 | test_bit(V4L2_FL_USES_V4L2_FH, &vfd->flags) ? fh : NULL; | |
efbceecd HV |
1997 | struct v4l2_ext_controls ctrls; |
1998 | struct v4l2_ext_control ctrl; | |
1999 | ||
2000 | if (vfh && vfh->ctrl_handler) | |
2001 | return v4l2_g_ctrl(vfh->ctrl_handler, p); | |
2002 | if (vfd->ctrl_handler) | |
2003 | return v4l2_g_ctrl(vfd->ctrl_handler, p); | |
2004 | if (ops->vidioc_g_ctrl) | |
2005 | return ops->vidioc_g_ctrl(file, fh, p); | |
2006 | if (ops->vidioc_g_ext_ctrls == NULL) | |
2007 | return -ENOTTY; | |
2008 | ||
0f8017be | 2009 | ctrls.which = V4L2_CTRL_ID2WHICH(p->id); |
efbceecd HV |
2010 | ctrls.count = 1; |
2011 | ctrls.controls = &ctrl; | |
2012 | ctrl.id = p->id; | |
2013 | ctrl.value = p->value; | |
2014 | if (check_ext_ctrls(&ctrls, 1)) { | |
2015 | int ret = ops->vidioc_g_ext_ctrls(file, fh, &ctrls); | |
2016 | ||
2017 | if (ret == 0) | |
2018 | p->value = ctrl.value; | |
2019 | return ret; | |
2020 | } | |
2021 | return -EINVAL; | |
2022 | } | |
2023 | ||
2024 | static int v4l_s_ctrl(const struct v4l2_ioctl_ops *ops, | |
2025 | struct file *file, void *fh, void *arg) | |
2026 | { | |
2027 | struct video_device *vfd = video_devdata(file); | |
2028 | struct v4l2_control *p = arg; | |
7a3ed2d9 HV |
2029 | struct v4l2_fh *vfh = |
2030 | test_bit(V4L2_FL_USES_V4L2_FH, &vfd->flags) ? fh : NULL; | |
efbceecd HV |
2031 | struct v4l2_ext_controls ctrls; |
2032 | struct v4l2_ext_control ctrl; | |
2033 | ||
2034 | if (vfh && vfh->ctrl_handler) | |
2035 | return v4l2_s_ctrl(vfh, vfh->ctrl_handler, p); | |
2036 | if (vfd->ctrl_handler) | |
2037 | return v4l2_s_ctrl(NULL, vfd->ctrl_handler, p); | |
2038 | if (ops->vidioc_s_ctrl) | |
2039 | return ops->vidioc_s_ctrl(file, fh, p); | |
2040 | if (ops->vidioc_s_ext_ctrls == NULL) | |
2041 | return -ENOTTY; | |
2042 | ||
0f8017be | 2043 | ctrls.which = V4L2_CTRL_ID2WHICH(p->id); |
efbceecd HV |
2044 | ctrls.count = 1; |
2045 | ctrls.controls = &ctrl; | |
2046 | ctrl.id = p->id; | |
2047 | ctrl.value = p->value; | |
2048 | if (check_ext_ctrls(&ctrls, 1)) | |
2049 | return ops->vidioc_s_ext_ctrls(file, fh, &ctrls); | |
2050 | return -EINVAL; | |
2051 | } | |
2052 | ||
2053 | static int v4l_g_ext_ctrls(const struct v4l2_ioctl_ops *ops, | |
2054 | struct file *file, void *fh, void *arg) | |
2055 | { | |
2056 | struct video_device *vfd = video_devdata(file); | |
2057 | struct v4l2_ext_controls *p = arg; | |
7a3ed2d9 HV |
2058 | struct v4l2_fh *vfh = |
2059 | test_bit(V4L2_FL_USES_V4L2_FH, &vfd->flags) ? fh : NULL; | |
efbceecd HV |
2060 | |
2061 | p->error_idx = p->count; | |
2062 | if (vfh && vfh->ctrl_handler) | |
2063 | return v4l2_g_ext_ctrls(vfh->ctrl_handler, p); | |
2064 | if (vfd->ctrl_handler) | |
2065 | return v4l2_g_ext_ctrls(vfd->ctrl_handler, p); | |
2066 | if (ops->vidioc_g_ext_ctrls == NULL) | |
2067 | return -ENOTTY; | |
2068 | return check_ext_ctrls(p, 0) ? ops->vidioc_g_ext_ctrls(file, fh, p) : | |
2069 | -EINVAL; | |
2070 | } | |
2071 | ||
2072 | static int v4l_s_ext_ctrls(const struct v4l2_ioctl_ops *ops, | |
2073 | struct file *file, void *fh, void *arg) | |
2074 | { | |
2075 | struct video_device *vfd = video_devdata(file); | |
2076 | struct v4l2_ext_controls *p = arg; | |
7a3ed2d9 HV |
2077 | struct v4l2_fh *vfh = |
2078 | test_bit(V4L2_FL_USES_V4L2_FH, &vfd->flags) ? fh : NULL; | |
efbceecd HV |
2079 | |
2080 | p->error_idx = p->count; | |
2081 | if (vfh && vfh->ctrl_handler) | |
2082 | return v4l2_s_ext_ctrls(vfh, vfh->ctrl_handler, p); | |
2083 | if (vfd->ctrl_handler) | |
2084 | return v4l2_s_ext_ctrls(NULL, vfd->ctrl_handler, p); | |
2085 | if (ops->vidioc_s_ext_ctrls == NULL) | |
2086 | return -ENOTTY; | |
2087 | return check_ext_ctrls(p, 0) ? ops->vidioc_s_ext_ctrls(file, fh, p) : | |
2088 | -EINVAL; | |
2089 | } | |
2090 | ||
2091 | static int v4l_try_ext_ctrls(const struct v4l2_ioctl_ops *ops, | |
2092 | struct file *file, void *fh, void *arg) | |
2093 | { | |
2094 | struct video_device *vfd = video_devdata(file); | |
2095 | struct v4l2_ext_controls *p = arg; | |
7a3ed2d9 HV |
2096 | struct v4l2_fh *vfh = |
2097 | test_bit(V4L2_FL_USES_V4L2_FH, &vfd->flags) ? fh : NULL; | |
efbceecd HV |
2098 | |
2099 | p->error_idx = p->count; | |
2100 | if (vfh && vfh->ctrl_handler) | |
2101 | return v4l2_try_ext_ctrls(vfh->ctrl_handler, p); | |
2102 | if (vfd->ctrl_handler) | |
2103 | return v4l2_try_ext_ctrls(vfd->ctrl_handler, p); | |
2104 | if (ops->vidioc_try_ext_ctrls == NULL) | |
2105 | return -ENOTTY; | |
2106 | return check_ext_ctrls(p, 0) ? ops->vidioc_try_ext_ctrls(file, fh, p) : | |
2107 | -EINVAL; | |
2108 | } | |
2109 | ||
d84f2d94 HV |
2110 | static int v4l_g_crop(const struct v4l2_ioctl_ops *ops, |
2111 | struct file *file, void *fh, void *arg) | |
2112 | { | |
2113 | struct v4l2_crop *p = arg; | |
2114 | struct v4l2_selection s = { | |
2115 | .type = p->type, | |
2116 | }; | |
2117 | int ret; | |
2118 | ||
2119 | if (ops->vidioc_g_crop) | |
2120 | return ops->vidioc_g_crop(file, fh, p); | |
2121 | /* simulate capture crop using selection api */ | |
2122 | ||
2123 | /* crop means compose for output devices */ | |
2124 | if (V4L2_TYPE_IS_OUTPUT(p->type)) | |
2125 | s.target = V4L2_SEL_TGT_COMPOSE_ACTIVE; | |
2126 | else | |
2127 | s.target = V4L2_SEL_TGT_CROP_ACTIVE; | |
2128 | ||
2129 | ret = ops->vidioc_g_selection(file, fh, &s); | |
2130 | ||
2131 | /* copying results to old structure on success */ | |
2132 | if (!ret) | |
2133 | p->c = s.r; | |
2134 | return ret; | |
2135 | } | |
2136 | ||
2137 | static int v4l_s_crop(const struct v4l2_ioctl_ops *ops, | |
2138 | struct file *file, void *fh, void *arg) | |
2139 | { | |
2140 | struct v4l2_crop *p = arg; | |
2141 | struct v4l2_selection s = { | |
2142 | .type = p->type, | |
2143 | .r = p->c, | |
2144 | }; | |
2145 | ||
2146 | if (ops->vidioc_s_crop) | |
2147 | return ops->vidioc_s_crop(file, fh, p); | |
2148 | /* simulate capture crop using selection api */ | |
2149 | ||
2150 | /* crop means compose for output devices */ | |
2151 | if (V4L2_TYPE_IS_OUTPUT(p->type)) | |
2152 | s.target = V4L2_SEL_TGT_COMPOSE_ACTIVE; | |
2153 | else | |
2154 | s.target = V4L2_SEL_TGT_CROP_ACTIVE; | |
2155 | ||
2156 | return ops->vidioc_s_selection(file, fh, &s); | |
2157 | } | |
2158 | ||
2159 | static int v4l_cropcap(const struct v4l2_ioctl_ops *ops, | |
2160 | struct file *file, void *fh, void *arg) | |
2161 | { | |
2162 | struct v4l2_cropcap *p = arg; | |
d84f2d94 | 2163 | |
c431cbbb MCC |
2164 | if (ops->vidioc_g_selection) { |
2165 | struct v4l2_selection s = { .type = p->type }; | |
2166 | int ret; | |
d84f2d94 | 2167 | |
c431cbbb MCC |
2168 | /* obtaining bounds */ |
2169 | if (V4L2_TYPE_IS_OUTPUT(p->type)) | |
2170 | s.target = V4L2_SEL_TGT_COMPOSE_BOUNDS; | |
2171 | else | |
2172 | s.target = V4L2_SEL_TGT_CROP_BOUNDS; | |
d84f2d94 | 2173 | |
c431cbbb MCC |
2174 | ret = ops->vidioc_g_selection(file, fh, &s); |
2175 | if (ret) | |
2176 | return ret; | |
2177 | p->bounds = s.r; | |
d84f2d94 | 2178 | |
c431cbbb MCC |
2179 | /* obtaining defrect */ |
2180 | if (V4L2_TYPE_IS_OUTPUT(p->type)) | |
2181 | s.target = V4L2_SEL_TGT_COMPOSE_DEFAULT; | |
2182 | else | |
2183 | s.target = V4L2_SEL_TGT_CROP_DEFAULT; | |
d84f2d94 | 2184 | |
c431cbbb MCC |
2185 | ret = ops->vidioc_g_selection(file, fh, &s); |
2186 | if (ret) | |
2187 | return ret; | |
2188 | p->defrect = s.r; | |
2189 | } | |
d84f2d94 HV |
2190 | |
2191 | /* setting trivial pixelaspect */ | |
2192 | p->pixelaspect.numerator = 1; | |
2193 | p->pixelaspect.denominator = 1; | |
9409945c HV |
2194 | |
2195 | if (ops->vidioc_cropcap) | |
2196 | return ops->vidioc_cropcap(file, fh, p); | |
2197 | ||
d84f2d94 HV |
2198 | return 0; |
2199 | } | |
2200 | ||
f16f77b0 HV |
2201 | static int v4l_log_status(const struct v4l2_ioctl_ops *ops, |
2202 | struct file *file, void *fh, void *arg) | |
2203 | { | |
2204 | struct video_device *vfd = video_devdata(file); | |
2205 | int ret; | |
2206 | ||
2207 | if (vfd->v4l2_dev) | |
2208 | pr_info("%s: ================= START STATUS =================\n", | |
2209 | vfd->v4l2_dev->name); | |
2210 | ret = ops->vidioc_log_status(file, fh); | |
2211 | if (vfd->v4l2_dev) | |
2212 | pr_info("%s: ================== END STATUS ==================\n", | |
2213 | vfd->v4l2_dev->name); | |
2214 | return ret; | |
2215 | } | |
2216 | ||
2217 | static int v4l_dbg_g_register(const struct v4l2_ioctl_ops *ops, | |
2218 | struct file *file, void *fh, void *arg) | |
2219 | { | |
2220 | #ifdef CONFIG_VIDEO_ADV_DEBUG | |
2221 | struct v4l2_dbg_register *p = arg; | |
79b0c640 HV |
2222 | struct video_device *vfd = video_devdata(file); |
2223 | struct v4l2_subdev *sd; | |
2224 | int idx = 0; | |
f16f77b0 HV |
2225 | |
2226 | if (!capable(CAP_SYS_ADMIN)) | |
2227 | return -EPERM; | |
3eef2510 | 2228 | if (p->match.type == V4L2_CHIP_MATCH_SUBDEV) { |
79b0c640 HV |
2229 | if (vfd->v4l2_dev == NULL) |
2230 | return -EINVAL; | |
3eef2510 HV |
2231 | v4l2_device_for_each_subdev(sd, vfd->v4l2_dev) |
2232 | if (p->match.addr == idx++) | |
79b0c640 | 2233 | return v4l2_subdev_call(sd, core, g_register, p); |
79b0c640 HV |
2234 | return -EINVAL; |
2235 | } | |
191b79b0 HV |
2236 | if (ops->vidioc_g_register && p->match.type == V4L2_CHIP_MATCH_BRIDGE && |
2237 | (ops->vidioc_g_chip_info || p->match.addr == 0)) | |
79b0c640 HV |
2238 | return ops->vidioc_g_register(file, fh, p); |
2239 | return -EINVAL; | |
f16f77b0 HV |
2240 | #else |
2241 | return -ENOTTY; | |
2242 | #endif | |
2243 | } | |
2244 | ||
2245 | static int v4l_dbg_s_register(const struct v4l2_ioctl_ops *ops, | |
2246 | struct file *file, void *fh, void *arg) | |
2247 | { | |
2248 | #ifdef CONFIG_VIDEO_ADV_DEBUG | |
977ba3b1 | 2249 | const struct v4l2_dbg_register *p = arg; |
79b0c640 HV |
2250 | struct video_device *vfd = video_devdata(file); |
2251 | struct v4l2_subdev *sd; | |
2252 | int idx = 0; | |
f16f77b0 HV |
2253 | |
2254 | if (!capable(CAP_SYS_ADMIN)) | |
2255 | return -EPERM; | |
3eef2510 | 2256 | if (p->match.type == V4L2_CHIP_MATCH_SUBDEV) { |
79b0c640 HV |
2257 | if (vfd->v4l2_dev == NULL) |
2258 | return -EINVAL; | |
3eef2510 HV |
2259 | v4l2_device_for_each_subdev(sd, vfd->v4l2_dev) |
2260 | if (p->match.addr == idx++) | |
79b0c640 | 2261 | return v4l2_subdev_call(sd, core, s_register, p); |
79b0c640 HV |
2262 | return -EINVAL; |
2263 | } | |
191b79b0 HV |
2264 | if (ops->vidioc_s_register && p->match.type == V4L2_CHIP_MATCH_BRIDGE && |
2265 | (ops->vidioc_g_chip_info || p->match.addr == 0)) | |
79b0c640 HV |
2266 | return ops->vidioc_s_register(file, fh, p); |
2267 | return -EINVAL; | |
f16f77b0 HV |
2268 | #else |
2269 | return -ENOTTY; | |
2270 | #endif | |
2271 | } | |
2272 | ||
96b03d2a | 2273 | static int v4l_dbg_g_chip_info(const struct v4l2_ioctl_ops *ops, |
79b0c640 HV |
2274 | struct file *file, void *fh, void *arg) |
2275 | { | |
cd634f1b | 2276 | #ifdef CONFIG_VIDEO_ADV_DEBUG |
79b0c640 | 2277 | struct video_device *vfd = video_devdata(file); |
96b03d2a | 2278 | struct v4l2_dbg_chip_info *p = arg; |
79b0c640 HV |
2279 | struct v4l2_subdev *sd; |
2280 | int idx = 0; | |
2281 | ||
2282 | switch (p->match.type) { | |
2283 | case V4L2_CHIP_MATCH_BRIDGE: | |
79b0c640 HV |
2284 | if (ops->vidioc_s_register) |
2285 | p->flags |= V4L2_CHIP_FL_WRITABLE; | |
2286 | if (ops->vidioc_g_register) | |
2287 | p->flags |= V4L2_CHIP_FL_READABLE; | |
1c1d86a1 | 2288 | strlcpy(p->name, vfd->v4l2_dev->name, sizeof(p->name)); |
96b03d2a HV |
2289 | if (ops->vidioc_g_chip_info) |
2290 | return ops->vidioc_g_chip_info(file, fh, arg); | |
0f0fe4b9 HV |
2291 | if (p->match.addr) |
2292 | return -EINVAL; | |
79b0c640 HV |
2293 | return 0; |
2294 | ||
3eef2510 | 2295 | case V4L2_CHIP_MATCH_SUBDEV: |
79b0c640 HV |
2296 | if (vfd->v4l2_dev == NULL) |
2297 | break; | |
2298 | v4l2_device_for_each_subdev(sd, vfd->v4l2_dev) { | |
3eef2510 HV |
2299 | if (p->match.addr != idx++) |
2300 | continue; | |
2301 | if (sd->ops->core && sd->ops->core->s_register) | |
2302 | p->flags |= V4L2_CHIP_FL_WRITABLE; | |
2303 | if (sd->ops->core && sd->ops->core->g_register) | |
2304 | p->flags |= V4L2_CHIP_FL_READABLE; | |
2305 | strlcpy(p->name, sd->name, sizeof(p->name)); | |
2306 | return 0; | |
79b0c640 HV |
2307 | } |
2308 | break; | |
2309 | } | |
2310 | return -EINVAL; | |
cd634f1b HV |
2311 | #else |
2312 | return -ENOTTY; | |
2313 | #endif | |
79b0c640 HV |
2314 | } |
2315 | ||
458aa4a6 HV |
2316 | static int v4l_dqevent(const struct v4l2_ioctl_ops *ops, |
2317 | struct file *file, void *fh, void *arg) | |
2318 | { | |
2319 | return v4l2_event_dequeue(fh, arg, file->f_flags & O_NONBLOCK); | |
2320 | } | |
2321 | ||
2322 | static int v4l_subscribe_event(const struct v4l2_ioctl_ops *ops, | |
2323 | struct file *file, void *fh, void *arg) | |
2324 | { | |
2325 | return ops->vidioc_subscribe_event(fh, arg); | |
2326 | } | |
2327 | ||
2328 | static int v4l_unsubscribe_event(const struct v4l2_ioctl_ops *ops, | |
2329 | struct file *file, void *fh, void *arg) | |
2330 | { | |
2331 | return ops->vidioc_unsubscribe_event(fh, arg); | |
2332 | } | |
2333 | ||
2334 | static int v4l_g_sliced_vbi_cap(const struct v4l2_ioctl_ops *ops, | |
2335 | struct file *file, void *fh, void *arg) | |
2336 | { | |
2337 | struct v4l2_sliced_vbi_cap *p = arg; | |
4b20259f HV |
2338 | int ret = check_fmt(file, p->type); |
2339 | ||
2340 | if (ret) | |
2341 | return ret; | |
458aa4a6 HV |
2342 | |
2343 | /* Clear up to type, everything after type is zeroed already */ | |
2344 | memset(p, 0, offsetof(struct v4l2_sliced_vbi_cap, type)); | |
2345 | ||
2346 | return ops->vidioc_g_sliced_vbi_cap(file, fh, p); | |
2347 | } | |
2348 | ||
82b655bf HV |
2349 | static int v4l_enum_freq_bands(const struct v4l2_ioctl_ops *ops, |
2350 | struct file *file, void *fh, void *arg) | |
2351 | { | |
2352 | struct video_device *vfd = video_devdata(file); | |
2353 | struct v4l2_frequency_band *p = arg; | |
2354 | enum v4l2_tuner_type type; | |
2355 | int err; | |
2356 | ||
84099a28 | 2357 | if (vfd->vfl_type == VFL_TYPE_SDR) { |
f3c3ecec | 2358 | if (p->type != V4L2_TUNER_SDR && p->type != V4L2_TUNER_RF) |
84099a28 AP |
2359 | return -EINVAL; |
2360 | type = p->type; | |
2361 | } else { | |
2362 | type = (vfd->vfl_type == VFL_TYPE_RADIO) ? | |
2363 | V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV; | |
2364 | if (type != p->type) | |
2365 | return -EINVAL; | |
2366 | } | |
a7f404af HV |
2367 | if (ops->vidioc_enum_freq_bands) { |
2368 | err = ops->vidioc_enum_freq_bands(file, fh, p); | |
2369 | if (err != -ENOTTY) | |
2370 | return err; | |
2371 | } | |
73f35418 | 2372 | if (is_valid_ioctl(vfd, VIDIOC_G_TUNER)) { |
82b655bf HV |
2373 | struct v4l2_tuner t = { |
2374 | .index = p->tuner, | |
2375 | .type = type, | |
2376 | }; | |
2377 | ||
aa4d9b53 HV |
2378 | if (p->index) |
2379 | return -EINVAL; | |
82b655bf HV |
2380 | err = ops->vidioc_g_tuner(file, fh, &t); |
2381 | if (err) | |
2382 | return err; | |
2383 | p->capability = t.capability | V4L2_TUNER_CAP_FREQ_BANDS; | |
2384 | p->rangelow = t.rangelow; | |
2385 | p->rangehigh = t.rangehigh; | |
2386 | p->modulation = (type == V4L2_TUNER_RADIO) ? | |
2387 | V4L2_BAND_MODULATION_FM : V4L2_BAND_MODULATION_VSB; | |
2388 | return 0; | |
2389 | } | |
73f35418 | 2390 | if (is_valid_ioctl(vfd, VIDIOC_G_MODULATOR)) { |
82b655bf HV |
2391 | struct v4l2_modulator m = { |
2392 | .index = p->tuner, | |
2393 | }; | |
2394 | ||
2395 | if (type != V4L2_TUNER_RADIO) | |
2396 | return -EINVAL; | |
aa4d9b53 HV |
2397 | if (p->index) |
2398 | return -EINVAL; | |
82b655bf HV |
2399 | err = ops->vidioc_g_modulator(file, fh, &m); |
2400 | if (err) | |
2401 | return err; | |
2402 | p->capability = m.capability | V4L2_TUNER_CAP_FREQ_BANDS; | |
2403 | p->rangelow = m.rangelow; | |
2404 | p->rangehigh = m.rangehigh; | |
2405 | p->modulation = (type == V4L2_TUNER_RADIO) ? | |
2406 | V4L2_BAND_MODULATION_FM : V4L2_BAND_MODULATION_VSB; | |
2407 | return 0; | |
2408 | } | |
2409 | return -ENOTTY; | |
2410 | } | |
2411 | ||
4839e6c2 HV |
2412 | struct v4l2_ioctl_info { |
2413 | unsigned int ioctl; | |
27cd2aba | 2414 | u32 flags; |
4839e6c2 | 2415 | const char * const name; |
86748f35 HV |
2416 | union { |
2417 | u32 offset; | |
2418 | int (*func)(const struct v4l2_ioctl_ops *ops, | |
2419 | struct file *file, void *fh, void *p); | |
26ddcbcc | 2420 | } u; |
86748f35 | 2421 | void (*debug)(const void *arg, bool write_only); |
4839e6c2 HV |
2422 | }; |
2423 | ||
2424 | /* This control needs a priority check */ | |
2425 | #define INFO_FL_PRIO (1 << 0) | |
2426 | /* This control can be valid if the filehandle passes a control handler. */ | |
2427 | #define INFO_FL_CTRL (1 << 1) | |
86748f35 HV |
2428 | /* This is a standard ioctl, no need for special code */ |
2429 | #define INFO_FL_STD (1 << 2) | |
2430 | /* This is ioctl has its own function */ | |
2431 | #define INFO_FL_FUNC (1 << 3) | |
5a5adf6b HV |
2432 | /* Queuing ioctl */ |
2433 | #define INFO_FL_QUEUE (1 << 4) | |
27cd2aba HV |
2434 | /* Zero struct from after the field to the end */ |
2435 | #define INFO_FL_CLEAR(v4l2_struct, field) \ | |
2436 | ((offsetof(struct v4l2_struct, field) + \ | |
2437 | sizeof(((struct v4l2_struct *)0)->field)) << 16) | |
2438 | #define INFO_FL_CLEAR_MASK (_IOC_SIZEMASK << 16) | |
4839e6c2 | 2439 | |
86748f35 HV |
2440 | #define IOCTL_INFO_STD(_ioctl, _vidioc, _debug, _flags) \ |
2441 | [_IOC_NR(_ioctl)] = { \ | |
2442 | .ioctl = _ioctl, \ | |
2443 | .flags = _flags | INFO_FL_STD, \ | |
2444 | .name = #_ioctl, \ | |
26ddcbcc | 2445 | .u.offset = offsetof(struct v4l2_ioctl_ops, _vidioc), \ |
86748f35 HV |
2446 | .debug = _debug, \ |
2447 | } | |
2448 | ||
2449 | #define IOCTL_INFO_FNC(_ioctl, _func, _debug, _flags) \ | |
2450 | [_IOC_NR(_ioctl)] = { \ | |
2451 | .ioctl = _ioctl, \ | |
2452 | .flags = _flags | INFO_FL_FUNC, \ | |
2453 | .name = #_ioctl, \ | |
26ddcbcc | 2454 | .u.func = _func, \ |
86748f35 HV |
2455 | .debug = _debug, \ |
2456 | } | |
2457 | ||
4839e6c2 | 2458 | static struct v4l2_ioctl_info v4l2_ioctls[] = { |
59076122 | 2459 | IOCTL_INFO_FNC(VIDIOC_QUERYCAP, v4l_querycap, v4l_print_querycap, 0), |
be6c64e4 | 2460 | IOCTL_INFO_FNC(VIDIOC_ENUM_FMT, v4l_enum_fmt, v4l_print_fmtdesc, INFO_FL_CLEAR(v4l2_fmtdesc, type)), |
e5ce558a | 2461 | IOCTL_INFO_FNC(VIDIOC_G_FMT, v4l_g_fmt, v4l_print_format, 0), |
be6c64e4 | 2462 | IOCTL_INFO_FNC(VIDIOC_S_FMT, v4l_s_fmt, v4l_print_format, INFO_FL_PRIO), |
5a5adf6b HV |
2463 | IOCTL_INFO_FNC(VIDIOC_REQBUFS, v4l_reqbufs, v4l_print_requestbuffers, INFO_FL_PRIO | INFO_FL_QUEUE), |
2464 | IOCTL_INFO_FNC(VIDIOC_QUERYBUF, v4l_querybuf, v4l_print_buffer, INFO_FL_QUEUE | INFO_FL_CLEAR(v4l2_buffer, length)), | |
be6c64e4 HV |
2465 | IOCTL_INFO_STD(VIDIOC_G_FBUF, vidioc_g_fbuf, v4l_print_framebuffer, 0), |
2466 | IOCTL_INFO_STD(VIDIOC_S_FBUF, vidioc_s_fbuf, v4l_print_framebuffer, INFO_FL_PRIO), | |
737c097b | 2467 | IOCTL_INFO_FNC(VIDIOC_OVERLAY, v4l_overlay, v4l_print_u32, INFO_FL_PRIO), |
5a5adf6b | 2468 | IOCTL_INFO_FNC(VIDIOC_QBUF, v4l_qbuf, v4l_print_buffer, INFO_FL_QUEUE), |
b799d09a | 2469 | IOCTL_INFO_STD(VIDIOC_EXPBUF, vidioc_expbuf, v4l_print_exportbuffer, INFO_FL_QUEUE | INFO_FL_CLEAR(v4l2_exportbuffer, flags)), |
5a5adf6b HV |
2470 | IOCTL_INFO_FNC(VIDIOC_DQBUF, v4l_dqbuf, v4l_print_buffer, INFO_FL_QUEUE), |
2471 | IOCTL_INFO_FNC(VIDIOC_STREAMON, v4l_streamon, v4l_print_buftype, INFO_FL_PRIO | INFO_FL_QUEUE), | |
2472 | IOCTL_INFO_FNC(VIDIOC_STREAMOFF, v4l_streamoff, v4l_print_buftype, INFO_FL_PRIO | INFO_FL_QUEUE), | |
eb3728ed HV |
2473 | IOCTL_INFO_FNC(VIDIOC_G_PARM, v4l_g_parm, v4l_print_streamparm, INFO_FL_CLEAR(v4l2_streamparm, type)), |
2474 | IOCTL_INFO_FNC(VIDIOC_S_PARM, v4l_s_parm, v4l_print_streamparm, INFO_FL_PRIO), | |
ca371575 | 2475 | IOCTL_INFO_STD(VIDIOC_G_STD, vidioc_g_std, v4l_print_std, 0), |
4b1e2e4d HV |
2476 | IOCTL_INFO_FNC(VIDIOC_S_STD, v4l_s_std, v4l_print_std, INFO_FL_PRIO), |
2477 | IOCTL_INFO_FNC(VIDIOC_ENUMSTD, v4l_enumstd, v4l_print_standard, INFO_FL_CLEAR(v4l2_standard, index)), | |
59076122 | 2478 | IOCTL_INFO_FNC(VIDIOC_ENUMINPUT, v4l_enuminput, v4l_print_enuminput, INFO_FL_CLEAR(v4l2_input, index)), |
efbceecd HV |
2479 | IOCTL_INFO_FNC(VIDIOC_G_CTRL, v4l_g_ctrl, v4l_print_control, INFO_FL_CTRL | INFO_FL_CLEAR(v4l2_control, id)), |
2480 | IOCTL_INFO_FNC(VIDIOC_S_CTRL, v4l_s_ctrl, v4l_print_control, INFO_FL_PRIO | INFO_FL_CTRL), | |
4b1e2e4d HV |
2481 | IOCTL_INFO_FNC(VIDIOC_G_TUNER, v4l_g_tuner, v4l_print_tuner, INFO_FL_CLEAR(v4l2_tuner, index)), |
2482 | IOCTL_INFO_FNC(VIDIOC_S_TUNER, v4l_s_tuner, v4l_print_tuner, INFO_FL_PRIO), | |
59076122 HV |
2483 | IOCTL_INFO_STD(VIDIOC_G_AUDIO, vidioc_g_audio, v4l_print_audio, 0), |
2484 | IOCTL_INFO_STD(VIDIOC_S_AUDIO, vidioc_s_audio, v4l_print_audio, INFO_FL_PRIO), | |
efbceecd HV |
2485 | IOCTL_INFO_FNC(VIDIOC_QUERYCTRL, v4l_queryctrl, v4l_print_queryctrl, INFO_FL_CTRL | INFO_FL_CLEAR(v4l2_queryctrl, id)), |
2486 | IOCTL_INFO_FNC(VIDIOC_QUERYMENU, v4l_querymenu, v4l_print_querymenu, INFO_FL_CTRL | INFO_FL_CLEAR(v4l2_querymenu, index)), | |
59076122 HV |
2487 | IOCTL_INFO_STD(VIDIOC_G_INPUT, vidioc_g_input, v4l_print_u32, 0), |
2488 | IOCTL_INFO_FNC(VIDIOC_S_INPUT, v4l_s_input, v4l_print_u32, INFO_FL_PRIO), | |
f9402a94 HV |
2489 | IOCTL_INFO_STD(VIDIOC_G_EDID, vidioc_g_edid, v4l_print_edid, 0), |
2490 | IOCTL_INFO_STD(VIDIOC_S_EDID, vidioc_s_edid, v4l_print_edid, INFO_FL_PRIO), | |
59076122 HV |
2491 | IOCTL_INFO_STD(VIDIOC_G_OUTPUT, vidioc_g_output, v4l_print_u32, 0), |
2492 | IOCTL_INFO_FNC(VIDIOC_S_OUTPUT, v4l_s_output, v4l_print_u32, INFO_FL_PRIO), | |
2493 | IOCTL_INFO_FNC(VIDIOC_ENUMOUTPUT, v4l_enumoutput, v4l_print_enumoutput, INFO_FL_CLEAR(v4l2_output, index)), | |
2494 | IOCTL_INFO_STD(VIDIOC_G_AUDOUT, vidioc_g_audout, v4l_print_audioout, 0), | |
2495 | IOCTL_INFO_STD(VIDIOC_S_AUDOUT, vidioc_s_audout, v4l_print_audioout, INFO_FL_PRIO), | |
82b655bf | 2496 | IOCTL_INFO_FNC(VIDIOC_G_MODULATOR, v4l_g_modulator, v4l_print_modulator, INFO_FL_CLEAR(v4l2_modulator, index)), |
4124a3c4 | 2497 | IOCTL_INFO_FNC(VIDIOC_S_MODULATOR, v4l_s_modulator, v4l_print_modulator, INFO_FL_PRIO), |
4b1e2e4d HV |
2498 | IOCTL_INFO_FNC(VIDIOC_G_FREQUENCY, v4l_g_frequency, v4l_print_frequency, INFO_FL_CLEAR(v4l2_frequency, tuner)), |
2499 | IOCTL_INFO_FNC(VIDIOC_S_FREQUENCY, v4l_s_frequency, v4l_print_frequency, INFO_FL_PRIO), | |
d84f2d94 HV |
2500 | IOCTL_INFO_FNC(VIDIOC_CROPCAP, v4l_cropcap, v4l_print_cropcap, INFO_FL_CLEAR(v4l2_cropcap, type)), |
2501 | IOCTL_INFO_FNC(VIDIOC_G_CROP, v4l_g_crop, v4l_print_crop, INFO_FL_CLEAR(v4l2_crop, type)), | |
2502 | IOCTL_INFO_FNC(VIDIOC_S_CROP, v4l_s_crop, v4l_print_crop, INFO_FL_PRIO), | |
865c4642 HV |
2503 | IOCTL_INFO_STD(VIDIOC_G_SELECTION, vidioc_g_selection, v4l_print_selection, INFO_FL_CLEAR(v4l2_selection, r)), |
2504 | IOCTL_INFO_STD(VIDIOC_S_SELECTION, vidioc_s_selection, v4l_print_selection, INFO_FL_PRIO | INFO_FL_CLEAR(v4l2_selection, r)), | |
d806f2df HV |
2505 | IOCTL_INFO_STD(VIDIOC_G_JPEGCOMP, vidioc_g_jpegcomp, v4l_print_jpegcompression, 0), |
2506 | IOCTL_INFO_STD(VIDIOC_S_JPEGCOMP, vidioc_s_jpegcomp, v4l_print_jpegcompression, INFO_FL_PRIO), | |
4b1e2e4d | 2507 | IOCTL_INFO_FNC(VIDIOC_QUERYSTD, v4l_querystd, v4l_print_std, 0), |
be6c64e4 | 2508 | IOCTL_INFO_FNC(VIDIOC_TRY_FMT, v4l_try_fmt, v4l_print_format, 0), |
59076122 HV |
2509 | IOCTL_INFO_STD(VIDIOC_ENUMAUDIO, vidioc_enumaudio, v4l_print_audio, INFO_FL_CLEAR(v4l2_audio, index)), |
2510 | IOCTL_INFO_STD(VIDIOC_ENUMAUDOUT, vidioc_enumaudout, v4l_print_audioout, INFO_FL_CLEAR(v4l2_audioout, index)), | |
d0547cba HV |
2511 | IOCTL_INFO_FNC(VIDIOC_G_PRIORITY, v4l_g_priority, v4l_print_u32, 0), |
2512 | IOCTL_INFO_FNC(VIDIOC_S_PRIORITY, v4l_s_priority, v4l_print_u32, INFO_FL_PRIO), | |
458aa4a6 | 2513 | 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 | 2514 | IOCTL_INFO_FNC(VIDIOC_LOG_STATUS, v4l_log_status, v4l_print_newline, 0), |
efbceecd HV |
2515 | IOCTL_INFO_FNC(VIDIOC_G_EXT_CTRLS, v4l_g_ext_ctrls, v4l_print_ext_controls, INFO_FL_CTRL), |
2516 | IOCTL_INFO_FNC(VIDIOC_S_EXT_CTRLS, v4l_s_ext_ctrls, v4l_print_ext_controls, INFO_FL_PRIO | INFO_FL_CTRL), | |
9bc31633 | 2517 | IOCTL_INFO_FNC(VIDIOC_TRY_EXT_CTRLS, v4l_try_ext_ctrls, v4l_print_ext_controls, INFO_FL_CTRL), |
458aa4a6 HV |
2518 | IOCTL_INFO_STD(VIDIOC_ENUM_FRAMESIZES, vidioc_enum_framesizes, v4l_print_frmsizeenum, INFO_FL_CLEAR(v4l2_frmsizeenum, pixel_format)), |
2519 | IOCTL_INFO_STD(VIDIOC_ENUM_FRAMEINTERVALS, vidioc_enum_frameintervals, v4l_print_frmivalenum, INFO_FL_CLEAR(v4l2_frmivalenum, height)), | |
d806f2df HV |
2520 | IOCTL_INFO_STD(VIDIOC_G_ENC_INDEX, vidioc_g_enc_index, v4l_print_enc_idx, 0), |
2521 | IOCTL_INFO_STD(VIDIOC_ENCODER_CMD, vidioc_encoder_cmd, v4l_print_encoder_cmd, INFO_FL_PRIO | INFO_FL_CLEAR(v4l2_encoder_cmd, flags)), | |
2522 | IOCTL_INFO_STD(VIDIOC_TRY_ENCODER_CMD, vidioc_try_encoder_cmd, v4l_print_encoder_cmd, INFO_FL_CLEAR(v4l2_encoder_cmd, flags)), | |
2523 | IOCTL_INFO_STD(VIDIOC_DECODER_CMD, vidioc_decoder_cmd, v4l_print_decoder_cmd, INFO_FL_PRIO), | |
2524 | IOCTL_INFO_STD(VIDIOC_TRY_DECODER_CMD, vidioc_try_decoder_cmd, v4l_print_decoder_cmd, 0), | |
f16f77b0 HV |
2525 | IOCTL_INFO_FNC(VIDIOC_DBG_S_REGISTER, v4l_dbg_s_register, v4l_print_dbg_register, 0), |
2526 | IOCTL_INFO_FNC(VIDIOC_DBG_G_REGISTER, v4l_dbg_g_register, v4l_print_dbg_register, 0), | |
4b1e2e4d | 2527 | IOCTL_INFO_FNC(VIDIOC_S_HW_FREQ_SEEK, v4l_s_hw_freq_seek, v4l_print_hw_freq_seek, INFO_FL_PRIO), |
efc626b0 HV |
2528 | IOCTL_INFO_STD(VIDIOC_S_DV_TIMINGS, vidioc_s_dv_timings, v4l_print_dv_timings, INFO_FL_PRIO), |
2529 | IOCTL_INFO_STD(VIDIOC_G_DV_TIMINGS, vidioc_g_dv_timings, v4l_print_dv_timings, 0), | |
458aa4a6 HV |
2530 | IOCTL_INFO_FNC(VIDIOC_DQEVENT, v4l_dqevent, v4l_print_event, 0), |
2531 | IOCTL_INFO_FNC(VIDIOC_SUBSCRIBE_EVENT, v4l_subscribe_event, v4l_print_event_subscription, 0), | |
2532 | IOCTL_INFO_FNC(VIDIOC_UNSUBSCRIBE_EVENT, v4l_unsubscribe_event, v4l_print_event_subscription, 0), | |
5a5adf6b HV |
2533 | IOCTL_INFO_FNC(VIDIOC_CREATE_BUFS, v4l_create_bufs, v4l_print_create_buffers, INFO_FL_PRIO | INFO_FL_QUEUE), |
2534 | IOCTL_INFO_FNC(VIDIOC_PREPARE_BUF, v4l_prepare_buf, v4l_print_buffer, INFO_FL_QUEUE), | |
efc626b0 HV |
2535 | IOCTL_INFO_STD(VIDIOC_ENUM_DV_TIMINGS, vidioc_enum_dv_timings, v4l_print_enum_dv_timings, 0), |
2536 | IOCTL_INFO_STD(VIDIOC_QUERY_DV_TIMINGS, vidioc_query_dv_timings, v4l_print_dv_timings, 0), | |
a1acb8f9 | 2537 | 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 | 2538 | IOCTL_INFO_FNC(VIDIOC_ENUM_FREQ_BANDS, v4l_enum_freq_bands, v4l_print_freq_band, 0), |
96b03d2a | 2539 | 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 | 2540 | 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 |
2541 | }; |
2542 | #define V4L2_IOCTLS ARRAY_SIZE(v4l2_ioctls) | |
2543 | ||
2544 | bool v4l2_is_known_ioctl(unsigned int cmd) | |
2545 | { | |
2546 | if (_IOC_NR(cmd) >= V4L2_IOCTLS) | |
2547 | return false; | |
2548 | return v4l2_ioctls[_IOC_NR(cmd)].ioctl == cmd; | |
2549 | } | |
2550 | ||
5a5adf6b HV |
2551 | struct mutex *v4l2_ioctl_get_lock(struct video_device *vdev, unsigned cmd) |
2552 | { | |
2553 | if (_IOC_NR(cmd) >= V4L2_IOCTLS) | |
2554 | return vdev->lock; | |
2555 | if (test_bit(_IOC_NR(cmd), vdev->disable_locking)) | |
2556 | return NULL; | |
2557 | if (vdev->queue && vdev->queue->lock && | |
2558 | (v4l2_ioctls[_IOC_NR(cmd)].flags & INFO_FL_QUEUE)) | |
2559 | return vdev->queue->lock; | |
2560 | return vdev->lock; | |
2561 | } | |
2562 | ||
4839e6c2 HV |
2563 | /* Common ioctl debug function. This function can be used by |
2564 | external ioctl messages as well as internal V4L ioctl */ | |
4a085168 | 2565 | void v4l_printk_ioctl(const char *prefix, unsigned int cmd) |
4839e6c2 | 2566 | { |
86748f35 | 2567 | const char *dir, *type; |
4839e6c2 | 2568 | |
4a085168 HV |
2569 | if (prefix) |
2570 | printk(KERN_DEBUG "%s: ", prefix); | |
2571 | ||
4839e6c2 HV |
2572 | switch (_IOC_TYPE(cmd)) { |
2573 | case 'd': | |
2574 | type = "v4l2_int"; | |
2575 | break; | |
2576 | case 'V': | |
2577 | if (_IOC_NR(cmd) >= V4L2_IOCTLS) { | |
2578 | type = "v4l2"; | |
2579 | break; | |
2580 | } | |
86748f35 | 2581 | pr_cont("%s", v4l2_ioctls[_IOC_NR(cmd)].name); |
4839e6c2 HV |
2582 | return; |
2583 | default: | |
2584 | type = "unknown"; | |
86748f35 | 2585 | break; |
4839e6c2 HV |
2586 | } |
2587 | ||
2588 | switch (_IOC_DIR(cmd)) { | |
2589 | case _IOC_NONE: dir = "--"; break; | |
2590 | case _IOC_READ: dir = "r-"; break; | |
2591 | case _IOC_WRITE: dir = "-w"; break; | |
2592 | case _IOC_READ | _IOC_WRITE: dir = "rw"; break; | |
2593 | default: dir = "*ERR*"; break; | |
2594 | } | |
86748f35 | 2595 | pr_cont("%s ioctl '%c', dir=%s, #%d (0x%08x)", |
4839e6c2 HV |
2596 | type, _IOC_TYPE(cmd), dir, _IOC_NR(cmd), cmd); |
2597 | } | |
2598 | EXPORT_SYMBOL(v4l_printk_ioctl); | |
2599 | ||
069b7479 | 2600 | static long __video_do_ioctl(struct file *file, |
35ea11ff HV |
2601 | unsigned int cmd, void *arg) |
2602 | { | |
2603 | struct video_device *vfd = video_devdata(file); | |
a399810c | 2604 | const struct v4l2_ioctl_ops *ops = vfd->ioctl_ops; |
86748f35 HV |
2605 | bool write_only = false; |
2606 | struct v4l2_ioctl_info default_info; | |
2607 | const struct v4l2_ioctl_info *info; | |
d5fbf32f | 2608 | void *fh = file->private_data; |
99cd47bc | 2609 | struct v4l2_fh *vfh = NULL; |
17028cdb | 2610 | int dev_debug = vfd->dev_debug; |
9190d191 | 2611 | long ret = -ENOTTY; |
35ea11ff | 2612 | |
6a717883 | 2613 | if (ops == NULL) { |
4a085168 HV |
2614 | pr_warn("%s: has no ioctl_ops.\n", |
2615 | video_device_node_name(vfd)); | |
9190d191 | 2616 | return ret; |
6a717883 HV |
2617 | } |
2618 | ||
b7284bb0 | 2619 | if (test_bit(V4L2_FL_USES_V4L2_FH, &vfd->flags)) |
99cd47bc HV |
2620 | vfh = file->private_data; |
2621 | ||
48ea0be0 | 2622 | if (v4l2_is_known_ioctl(cmd)) { |
86748f35 | 2623 | info = &v4l2_ioctls[_IOC_NR(cmd)]; |
48ea0be0 | 2624 | |
2e5e435f | 2625 | if (!test_bit(_IOC_NR(cmd), vfd->valid_ioctls) && |
48ea0be0 | 2626 | !((info->flags & INFO_FL_CTRL) && vfh && vfh->ctrl_handler)) |
86748f35 | 2627 | goto done; |
4b902fec | 2628 | |
b7284bb0 | 2629 | if (vfh && (info->flags & INFO_FL_PRIO)) { |
4b902fec HV |
2630 | ret = v4l2_prio_check(vfd->prio, vfh->prio); |
2631 | if (ret) | |
86748f35 | 2632 | goto done; |
4b902fec | 2633 | } |
86748f35 HV |
2634 | } else { |
2635 | default_info.ioctl = cmd; | |
2636 | default_info.flags = 0; | |
f18d8e07 | 2637 | default_info.debug = v4l_print_default; |
86748f35 | 2638 | info = &default_info; |
48ea0be0 HV |
2639 | } |
2640 | ||
86748f35 | 2641 | write_only = _IOC_DIR(cmd) == _IOC_WRITE; |
86748f35 HV |
2642 | if (info->flags & INFO_FL_STD) { |
2643 | typedef int (*vidioc_op)(struct file *file, void *fh, void *p); | |
2644 | const void *p = vfd->ioctl_ops; | |
26ddcbcc | 2645 | const vidioc_op *vidioc = p + info->u.offset; |
86748f35 HV |
2646 | |
2647 | ret = (*vidioc)(file, fh, arg); | |
86748f35 | 2648 | } else if (info->flags & INFO_FL_FUNC) { |
26ddcbcc | 2649 | ret = info->u.func(ops, file, fh, arg); |
f18d8e07 HV |
2650 | } else if (!ops->vidioc_default) { |
2651 | ret = -ENOTTY; | |
2652 | } else { | |
2653 | ret = ops->vidioc_default(file, fh, | |
b7284bb0 | 2654 | vfh ? v4l2_prio_check(vfd->prio, vfh->prio) >= 0 : 0, |
f18d8e07 | 2655 | cmd, arg); |
48ea0be0 | 2656 | } |
99cd47bc | 2657 | |
86748f35 | 2658 | done: |
17028cdb HV |
2659 | if (dev_debug & (V4L2_DEV_DEBUG_IOCTL | V4L2_DEV_DEBUG_IOCTL_ARG)) { |
2660 | if (!(dev_debug & V4L2_DEV_DEBUG_STREAMING) && | |
2661 | (cmd == VIDIOC_QBUF || cmd == VIDIOC_DQBUF)) | |
2662 | return ret; | |
2663 | ||
4a085168 | 2664 | v4l_printk_ioctl(video_device_node_name(vfd), cmd); |
86748f35 | 2665 | if (ret < 0) |
505d04bd | 2666 | pr_cont(": error %ld", ret); |
17028cdb | 2667 | if (!(dev_debug & V4L2_DEV_DEBUG_IOCTL_ARG)) |
86748f35 | 2668 | pr_cont("\n"); |
86748f35 HV |
2669 | else if (_IOC_DIR(cmd) == _IOC_NONE) |
2670 | info->debug(arg, write_only); | |
2671 | else { | |
2672 | pr_cont(": "); | |
2673 | info->debug(arg, write_only); | |
35ea11ff HV |
2674 | } |
2675 | } | |
2676 | ||
2677 | return ret; | |
2678 | } | |
2679 | ||
d14e6d76 | 2680 | static int check_array_args(unsigned int cmd, void *parg, size_t *array_size, |
ba2d35c1 | 2681 | void __user **user_ptr, void ***kernel_ptr) |
d14e6d76 PO |
2682 | { |
2683 | int ret = 0; | |
2684 | ||
2685 | switch (cmd) { | |
96b1a702 | 2686 | case VIDIOC_PREPARE_BUF: |
d14e6d76 PO |
2687 | case VIDIOC_QUERYBUF: |
2688 | case VIDIOC_QBUF: | |
2689 | case VIDIOC_DQBUF: { | |
2690 | struct v4l2_buffer *buf = parg; | |
2691 | ||
2692 | if (V4L2_TYPE_IS_MULTIPLANAR(buf->type) && buf->length > 0) { | |
2693 | if (buf->length > VIDEO_MAX_PLANES) { | |
2694 | ret = -EINVAL; | |
2695 | break; | |
2696 | } | |
2697 | *user_ptr = (void __user *)buf->m.planes; | |
ba2d35c1 | 2698 | *kernel_ptr = (void **)&buf->m.planes; |
d14e6d76 PO |
2699 | *array_size = sizeof(struct v4l2_plane) * buf->length; |
2700 | ret = 1; | |
2701 | } | |
2702 | break; | |
2703 | } | |
2704 | ||
dd519bb3 HV |
2705 | case VIDIOC_G_EDID: |
2706 | case VIDIOC_S_EDID: { | |
2707 | struct v4l2_edid *edid = parg; | |
ed45ce2c HV |
2708 | |
2709 | if (edid->blocks) { | |
1b8b10cc HV |
2710 | if (edid->blocks > 256) { |
2711 | ret = -EINVAL; | |
2712 | break; | |
2713 | } | |
ed45ce2c | 2714 | *user_ptr = (void __user *)edid->edid; |
ba2d35c1 | 2715 | *kernel_ptr = (void **)&edid->edid; |
ed45ce2c HV |
2716 | *array_size = edid->blocks * 128; |
2717 | ret = 1; | |
2718 | } | |
2719 | break; | |
2720 | } | |
2721 | ||
d14e6d76 PO |
2722 | case VIDIOC_S_EXT_CTRLS: |
2723 | case VIDIOC_G_EXT_CTRLS: | |
2724 | case VIDIOC_TRY_EXT_CTRLS: { | |
2725 | struct v4l2_ext_controls *ctrls = parg; | |
2726 | ||
2727 | if (ctrls->count != 0) { | |
6c06108b DC |
2728 | if (ctrls->count > V4L2_CID_MAX_CTRLS) { |
2729 | ret = -EINVAL; | |
2730 | break; | |
2731 | } | |
d14e6d76 | 2732 | *user_ptr = (void __user *)ctrls->controls; |
ba2d35c1 | 2733 | *kernel_ptr = (void **)&ctrls->controls; |
d14e6d76 PO |
2734 | *array_size = sizeof(struct v4l2_ext_control) |
2735 | * ctrls->count; | |
2736 | ret = 1; | |
2737 | } | |
2738 | break; | |
2739 | } | |
2740 | } | |
2741 | ||
2742 | return ret; | |
2743 | } | |
2744 | ||
fc0a8079 LP |
2745 | long |
2746 | video_usercopy(struct file *file, unsigned int cmd, unsigned long arg, | |
2747 | v4l2_kioctl func) | |
35ea11ff HV |
2748 | { |
2749 | char sbuf[128]; | |
2750 | void *mbuf = NULL; | |
1d94aa36 | 2751 | void *parg = (void *)arg; |
069b7479 | 2752 | long err = -EINVAL; |
d14e6d76 PO |
2753 | bool has_array_args; |
2754 | size_t array_size = 0; | |
35ea11ff | 2755 | void __user *user_ptr = NULL; |
d14e6d76 | 2756 | void **kernel_ptr = NULL; |
35ea11ff | 2757 | |
35ea11ff | 2758 | /* Copy arguments into temp kernel buffer */ |
337f9d20 | 2759 | if (_IOC_DIR(cmd) != _IOC_NONE) { |
35ea11ff HV |
2760 | if (_IOC_SIZE(cmd) <= sizeof(sbuf)) { |
2761 | parg = sbuf; | |
2762 | } else { | |
2763 | /* too big to allocate from stack */ | |
2764 | mbuf = kmalloc(_IOC_SIZE(cmd), GFP_KERNEL); | |
2765 | if (NULL == mbuf) | |
2766 | return -ENOMEM; | |
2767 | parg = mbuf; | |
2768 | } | |
2769 | ||
2770 | err = -EFAULT; | |
19c96e4b | 2771 | if (_IOC_DIR(cmd) & _IOC_WRITE) { |
27cd2aba HV |
2772 | unsigned int n = _IOC_SIZE(cmd); |
2773 | ||
2774 | /* | |
2775 | * In some cases, only a few fields are used as input, | |
2776 | * i.e. when the app sets "index" and then the driver | |
2777 | * fills in the rest of the structure for the thing | |
2778 | * with that index. We only need to copy up the first | |
2779 | * non-input field. | |
2780 | */ | |
2781 | if (v4l2_is_known_ioctl(cmd)) { | |
2782 | u32 flags = v4l2_ioctls[_IOC_NR(cmd)].flags; | |
2783 | if (flags & INFO_FL_CLEAR_MASK) | |
2784 | n = (flags & INFO_FL_CLEAR_MASK) >> 16; | |
2785 | } | |
19c96e4b TP |
2786 | |
2787 | if (copy_from_user(parg, (void __user *)arg, n)) | |
35ea11ff | 2788 | goto out; |
19c96e4b TP |
2789 | |
2790 | /* zero out anything we don't copy from userspace */ | |
2791 | if (n < _IOC_SIZE(cmd)) | |
2792 | memset((u8 *)parg + n, 0, _IOC_SIZE(cmd) - n); | |
337f9d20 TP |
2793 | } else { |
2794 | /* read-only ioctl */ | |
2795 | memset(parg, 0, _IOC_SIZE(cmd)); | |
19c96e4b | 2796 | } |
35ea11ff HV |
2797 | } |
2798 | ||
d14e6d76 PO |
2799 | err = check_array_args(cmd, parg, &array_size, &user_ptr, &kernel_ptr); |
2800 | if (err < 0) | |
2801 | goto out; | |
2802 | has_array_args = err; | |
35ea11ff | 2803 | |
d14e6d76 PO |
2804 | if (has_array_args) { |
2805 | /* | |
2806 | * When adding new types of array args, make sure that the | |
2807 | * parent argument to ioctl (which contains the pointer to the | |
2808 | * array) fits into sbuf (so that mbuf will still remain | |
2809 | * unused up to here). | |
2810 | */ | |
2811 | mbuf = kmalloc(array_size, GFP_KERNEL); | |
2812 | err = -ENOMEM; | |
2813 | if (NULL == mbuf) | |
2814 | goto out_array_args; | |
2815 | err = -EFAULT; | |
2816 | if (copy_from_user(mbuf, user_ptr, array_size)) | |
2817 | goto out_array_args; | |
2818 | *kernel_ptr = mbuf; | |
35ea11ff HV |
2819 | } |
2820 | ||
2821 | /* Handles IOCTL */ | |
fc0a8079 | 2822 | err = func(file, cmd, parg); |
35ea11ff | 2823 | if (err == -ENOIOCTLCMD) |
02bbb814 | 2824 | err = -ENOTTY; |
aa32f4c0 HV |
2825 | if (err == 0) { |
2826 | if (cmd == VIDIOC_DQBUF) | |
2827 | trace_v4l2_dqbuf(video_devdata(file)->minor, parg); | |
2828 | else if (cmd == VIDIOC_QBUF) | |
2829 | trace_v4l2_qbuf(video_devdata(file)->minor, parg); | |
2830 | } | |
35ea11ff | 2831 | |
d14e6d76 | 2832 | if (has_array_args) { |
ba2d35c1 | 2833 | *kernel_ptr = (void __force *)user_ptr; |
d14e6d76 | 2834 | if (copy_to_user(user_ptr, mbuf, array_size)) |
35ea11ff | 2835 | err = -EFAULT; |
d14e6d76 | 2836 | goto out_array_args; |
35ea11ff | 2837 | } |
5d7758ee HV |
2838 | /* VIDIOC_QUERY_DV_TIMINGS can return an error, but still have valid |
2839 | results that must be returned. */ | |
2840 | if (err < 0 && cmd != VIDIOC_QUERY_DV_TIMINGS) | |
35ea11ff HV |
2841 | goto out; |
2842 | ||
d14e6d76 | 2843 | out_array_args: |
35ea11ff HV |
2844 | /* Copy results into user buffer */ |
2845 | switch (_IOC_DIR(cmd)) { | |
2846 | case _IOC_READ: | |
2847 | case (_IOC_WRITE | _IOC_READ): | |
2848 | if (copy_to_user((void __user *)arg, parg, _IOC_SIZE(cmd))) | |
2849 | err = -EFAULT; | |
2850 | break; | |
2851 | } | |
2852 | ||
2853 | out: | |
2854 | kfree(mbuf); | |
2855 | return err; | |
2856 | } | |
fc0a8079 LP |
2857 | EXPORT_SYMBOL(video_usercopy); |
2858 | ||
2859 | long video_ioctl2(struct file *file, | |
2860 | unsigned int cmd, unsigned long arg) | |
2861 | { | |
2862 | return video_usercopy(file, cmd, arg, __video_do_ioctl); | |
2863 | } | |
8a522c91 | 2864 | EXPORT_SYMBOL(video_ioctl2); |