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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> |
35ea11ff | 30 | |
aa32f4c0 HV |
31 | #include <trace/events/v4l2.h> |
32 | ||
25985edc | 33 | /* Zero out the end of the struct pointed to by p. Everything after, but |
7ecc0cf9 TP |
34 | * not including, the specified field is cleared. */ |
35 | #define CLEAR_AFTER_FIELD(p, field) \ | |
36 | memset((u8 *)(p) + offsetof(typeof(*(p)), field) + sizeof((p)->field), \ | |
37 | 0, sizeof(*(p)) - offsetof(typeof(*(p)), field) - sizeof((p)->field)) | |
38 | ||
73f35418 HV |
39 | #define is_valid_ioctl(vfd, cmd) test_bit(_IOC_NR(cmd), (vfd)->valid_ioctls) |
40 | ||
35ea11ff HV |
41 | struct std_descr { |
42 | v4l2_std_id std; | |
43 | const char *descr; | |
44 | }; | |
45 | ||
46 | static const struct std_descr standards[] = { | |
47 | { V4L2_STD_NTSC, "NTSC" }, | |
48 | { V4L2_STD_NTSC_M, "NTSC-M" }, | |
49 | { V4L2_STD_NTSC_M_JP, "NTSC-M-JP" }, | |
50 | { V4L2_STD_NTSC_M_KR, "NTSC-M-KR" }, | |
51 | { V4L2_STD_NTSC_443, "NTSC-443" }, | |
52 | { V4L2_STD_PAL, "PAL" }, | |
53 | { V4L2_STD_PAL_BG, "PAL-BG" }, | |
54 | { V4L2_STD_PAL_B, "PAL-B" }, | |
55 | { V4L2_STD_PAL_B1, "PAL-B1" }, | |
56 | { V4L2_STD_PAL_G, "PAL-G" }, | |
57 | { V4L2_STD_PAL_H, "PAL-H" }, | |
58 | { V4L2_STD_PAL_I, "PAL-I" }, | |
59 | { V4L2_STD_PAL_DK, "PAL-DK" }, | |
60 | { V4L2_STD_PAL_D, "PAL-D" }, | |
61 | { V4L2_STD_PAL_D1, "PAL-D1" }, | |
62 | { V4L2_STD_PAL_K, "PAL-K" }, | |
63 | { V4L2_STD_PAL_M, "PAL-M" }, | |
64 | { V4L2_STD_PAL_N, "PAL-N" }, | |
65 | { V4L2_STD_PAL_Nc, "PAL-Nc" }, | |
66 | { V4L2_STD_PAL_60, "PAL-60" }, | |
67 | { V4L2_STD_SECAM, "SECAM" }, | |
68 | { V4L2_STD_SECAM_B, "SECAM-B" }, | |
69 | { V4L2_STD_SECAM_G, "SECAM-G" }, | |
70 | { V4L2_STD_SECAM_H, "SECAM-H" }, | |
71 | { V4L2_STD_SECAM_DK, "SECAM-DK" }, | |
72 | { V4L2_STD_SECAM_D, "SECAM-D" }, | |
73 | { V4L2_STD_SECAM_K, "SECAM-K" }, | |
74 | { V4L2_STD_SECAM_K1, "SECAM-K1" }, | |
75 | { V4L2_STD_SECAM_L, "SECAM-L" }, | |
76 | { V4L2_STD_SECAM_LC, "SECAM-Lc" }, | |
77 | { 0, "Unknown" } | |
78 | }; | |
79 | ||
80 | /* video4linux standard ID conversion to standard name | |
81 | */ | |
82 | const char *v4l2_norm_to_name(v4l2_std_id id) | |
83 | { | |
84 | u32 myid = id; | |
85 | int i; | |
86 | ||
87 | /* HACK: ppc32 architecture doesn't have __ucmpdi2 function to handle | |
88 | 64 bit comparations. So, on that architecture, with some gcc | |
89 | variants, compilation fails. Currently, the max value is 30bit wide. | |
90 | */ | |
91 | BUG_ON(myid != id); | |
92 | ||
93 | for (i = 0; standards[i].std; i++) | |
94 | if (myid == standards[i].std) | |
95 | break; | |
96 | return standards[i].descr; | |
97 | } | |
98 | EXPORT_SYMBOL(v4l2_norm_to_name); | |
99 | ||
51f0b8d5 TP |
100 | /* Returns frame period for the given standard */ |
101 | void v4l2_video_std_frame_period(int id, struct v4l2_fract *frameperiod) | |
102 | { | |
103 | if (id & V4L2_STD_525_60) { | |
104 | frameperiod->numerator = 1001; | |
105 | frameperiod->denominator = 30000; | |
106 | } else { | |
107 | frameperiod->numerator = 1; | |
108 | frameperiod->denominator = 25; | |
109 | } | |
110 | } | |
111 | EXPORT_SYMBOL(v4l2_video_std_frame_period); | |
112 | ||
35ea11ff HV |
113 | /* Fill in the fields of a v4l2_standard structure according to the |
114 | 'id' and 'transmission' parameters. Returns negative on error. */ | |
115 | int v4l2_video_std_construct(struct v4l2_standard *vs, | |
116 | int id, const char *name) | |
117 | { | |
51f0b8d5 TP |
118 | vs->id = id; |
119 | v4l2_video_std_frame_period(id, &vs->frameperiod); | |
120 | vs->framelines = (id & V4L2_STD_525_60) ? 525 : 625; | |
35ea11ff HV |
121 | strlcpy(vs->name, name, sizeof(vs->name)); |
122 | return 0; | |
123 | } | |
124 | EXPORT_SYMBOL(v4l2_video_std_construct); | |
125 | ||
126 | /* ----------------------------------------------------------------- */ | |
127 | /* some arrays for pretty-printing debug messages of enum types */ | |
128 | ||
129 | const char *v4l2_field_names[] = { | |
130 | [V4L2_FIELD_ANY] = "any", | |
131 | [V4L2_FIELD_NONE] = "none", | |
132 | [V4L2_FIELD_TOP] = "top", | |
133 | [V4L2_FIELD_BOTTOM] = "bottom", | |
134 | [V4L2_FIELD_INTERLACED] = "interlaced", | |
135 | [V4L2_FIELD_SEQ_TB] = "seq-tb", | |
136 | [V4L2_FIELD_SEQ_BT] = "seq-bt", | |
137 | [V4L2_FIELD_ALTERNATE] = "alternate", | |
138 | [V4L2_FIELD_INTERLACED_TB] = "interlaced-tb", | |
139 | [V4L2_FIELD_INTERLACED_BT] = "interlaced-bt", | |
140 | }; | |
141 | EXPORT_SYMBOL(v4l2_field_names); | |
142 | ||
143 | const char *v4l2_type_names[] = { | |
839aa56d | 144 | [0] = "0", |
35ea11ff HV |
145 | [V4L2_BUF_TYPE_VIDEO_CAPTURE] = "vid-cap", |
146 | [V4L2_BUF_TYPE_VIDEO_OVERLAY] = "vid-overlay", | |
147 | [V4L2_BUF_TYPE_VIDEO_OUTPUT] = "vid-out", | |
148 | [V4L2_BUF_TYPE_VBI_CAPTURE] = "vbi-cap", | |
149 | [V4L2_BUF_TYPE_VBI_OUTPUT] = "vbi-out", | |
150 | [V4L2_BUF_TYPE_SLICED_VBI_CAPTURE] = "sliced-vbi-cap", | |
151 | [V4L2_BUF_TYPE_SLICED_VBI_OUTPUT] = "sliced-vbi-out", | |
152 | [V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY] = "vid-out-overlay", | |
f8f3914c PO |
153 | [V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE] = "vid-cap-mplane", |
154 | [V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE] = "vid-out-mplane", | |
6f3073b8 | 155 | [V4L2_BUF_TYPE_SDR_CAPTURE] = "sdr-cap", |
35ea11ff HV |
156 | }; |
157 | EXPORT_SYMBOL(v4l2_type_names); | |
158 | ||
159 | static const char *v4l2_memory_names[] = { | |
160 | [V4L2_MEMORY_MMAP] = "mmap", | |
161 | [V4L2_MEMORY_USERPTR] = "userptr", | |
162 | [V4L2_MEMORY_OVERLAY] = "overlay", | |
051c7788 | 163 | [V4L2_MEMORY_DMABUF] = "dmabuf", |
35ea11ff HV |
164 | }; |
165 | ||
d9246240 | 166 | #define prt_names(a, arr) (((unsigned)(a)) < ARRAY_SIZE(arr) ? arr[a] : "unknown") |
35ea11ff HV |
167 | |
168 | /* ------------------------------------------------------------------ */ | |
169 | /* debug help functions */ | |
8ab75e3e | 170 | |
59076122 HV |
171 | static void v4l_print_querycap(const void *arg, bool write_only) |
172 | { | |
173 | const struct v4l2_capability *p = arg; | |
174 | ||
27d5a87c | 175 | pr_cont("driver=%.*s, card=%.*s, bus=%.*s, version=0x%08x, " |
59076122 | 176 | "capabilities=0x%08x, device_caps=0x%08x\n", |
27d5a87c HV |
177 | (int)sizeof(p->driver), p->driver, |
178 | (int)sizeof(p->card), p->card, | |
179 | (int)sizeof(p->bus_info), p->bus_info, | |
59076122 HV |
180 | p->version, p->capabilities, p->device_caps); |
181 | } | |
182 | ||
183 | static void v4l_print_enuminput(const void *arg, bool write_only) | |
184 | { | |
185 | const struct v4l2_input *p = arg; | |
186 | ||
27d5a87c | 187 | pr_cont("index=%u, name=%.*s, type=%u, audioset=0x%x, tuner=%u, " |
59076122 | 188 | "std=0x%08Lx, status=0x%x, capabilities=0x%x\n", |
27d5a87c HV |
189 | p->index, (int)sizeof(p->name), p->name, p->type, p->audioset, |
190 | p->tuner, (unsigned long long)p->std, p->status, | |
191 | p->capabilities); | |
59076122 HV |
192 | } |
193 | ||
194 | static void v4l_print_enumoutput(const void *arg, bool write_only) | |
195 | { | |
196 | const struct v4l2_output *p = arg; | |
197 | ||
27d5a87c | 198 | pr_cont("index=%u, name=%.*s, type=%u, audioset=0x%x, " |
59076122 | 199 | "modulator=%u, std=0x%08Lx, capabilities=0x%x\n", |
27d5a87c HV |
200 | p->index, (int)sizeof(p->name), p->name, p->type, p->audioset, |
201 | p->modulator, (unsigned long long)p->std, p->capabilities); | |
59076122 HV |
202 | } |
203 | ||
204 | static void v4l_print_audio(const void *arg, bool write_only) | |
205 | { | |
206 | const struct v4l2_audio *p = arg; | |
207 | ||
208 | if (write_only) | |
209 | pr_cont("index=%u, mode=0x%x\n", p->index, p->mode); | |
210 | else | |
27d5a87c HV |
211 | pr_cont("index=%u, name=%.*s, capability=0x%x, mode=0x%x\n", |
212 | p->index, (int)sizeof(p->name), p->name, | |
213 | p->capability, p->mode); | |
59076122 HV |
214 | } |
215 | ||
216 | static void v4l_print_audioout(const void *arg, bool write_only) | |
217 | { | |
218 | const struct v4l2_audioout *p = arg; | |
219 | ||
220 | if (write_only) | |
221 | pr_cont("index=%u\n", p->index); | |
222 | else | |
27d5a87c HV |
223 | pr_cont("index=%u, name=%.*s, capability=0x%x, mode=0x%x\n", |
224 | p->index, (int)sizeof(p->name), p->name, | |
225 | p->capability, p->mode); | |
59076122 HV |
226 | } |
227 | ||
be6c64e4 HV |
228 | static void v4l_print_fmtdesc(const void *arg, bool write_only) |
229 | { | |
230 | const struct v4l2_fmtdesc *p = arg; | |
231 | ||
27d5a87c | 232 | pr_cont("index=%u, type=%s, flags=0x%x, pixelformat=%c%c%c%c, description='%.*s'\n", |
be6c64e4 HV |
233 | p->index, prt_names(p->type, v4l2_type_names), |
234 | p->flags, (p->pixelformat & 0xff), | |
235 | (p->pixelformat >> 8) & 0xff, | |
236 | (p->pixelformat >> 16) & 0xff, | |
237 | (p->pixelformat >> 24) & 0xff, | |
27d5a87c | 238 | (int)sizeof(p->description), p->description); |
be6c64e4 HV |
239 | } |
240 | ||
241 | static void v4l_print_format(const void *arg, bool write_only) | |
242 | { | |
243 | const struct v4l2_format *p = arg; | |
244 | const struct v4l2_pix_format *pix; | |
245 | const struct v4l2_pix_format_mplane *mp; | |
246 | const struct v4l2_vbi_format *vbi; | |
247 | const struct v4l2_sliced_vbi_format *sliced; | |
248 | const struct v4l2_window *win; | |
87185c95 | 249 | const struct v4l2_sdr_format *sdr; |
be6c64e4 HV |
250 | unsigned i; |
251 | ||
252 | pr_cont("type=%s", prt_names(p->type, v4l2_type_names)); | |
253 | switch (p->type) { | |
254 | case V4L2_BUF_TYPE_VIDEO_CAPTURE: | |
255 | case V4L2_BUF_TYPE_VIDEO_OUTPUT: | |
256 | pix = &p->fmt.pix; | |
257 | pr_cont(", width=%u, height=%u, " | |
258 | "pixelformat=%c%c%c%c, field=%s, " | |
c96fd46a | 259 | "bytesperline=%u, sizeimage=%u, colorspace=%d, " |
74fdcb2e HV |
260 | "flags=0x%x, ycbcr_enc=%u, quantization=%u, " |
261 | "xfer_func=%u\n", | |
be6c64e4 HV |
262 | pix->width, pix->height, |
263 | (pix->pixelformat & 0xff), | |
264 | (pix->pixelformat >> 8) & 0xff, | |
265 | (pix->pixelformat >> 16) & 0xff, | |
266 | (pix->pixelformat >> 24) & 0xff, | |
267 | prt_names(pix->field, v4l2_field_names), | |
268 | pix->bytesperline, pix->sizeimage, | |
736d96b5 | 269 | pix->colorspace, pix->flags, pix->ycbcr_enc, |
74fdcb2e | 270 | pix->quantization, pix->xfer_func); |
be6c64e4 HV |
271 | break; |
272 | case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE: | |
273 | case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE: | |
274 | mp = &p->fmt.pix_mp; | |
275 | pr_cont(", width=%u, height=%u, " | |
276 | "format=%c%c%c%c, field=%s, " | |
1e8faa59 | 277 | "colorspace=%d, num_planes=%u, flags=0x%x, " |
74fdcb2e | 278 | "ycbcr_enc=%u, quantization=%u, xfer_func=%u\n", |
be6c64e4 HV |
279 | mp->width, mp->height, |
280 | (mp->pixelformat & 0xff), | |
281 | (mp->pixelformat >> 8) & 0xff, | |
282 | (mp->pixelformat >> 16) & 0xff, | |
283 | (mp->pixelformat >> 24) & 0xff, | |
284 | prt_names(mp->field, v4l2_field_names), | |
736d96b5 | 285 | mp->colorspace, mp->num_planes, mp->flags, |
74fdcb2e | 286 | mp->ycbcr_enc, mp->quantization, mp->xfer_func); |
be6c64e4 HV |
287 | for (i = 0; i < mp->num_planes; i++) |
288 | printk(KERN_DEBUG "plane %u: bytesperline=%u sizeimage=%u\n", i, | |
289 | mp->plane_fmt[i].bytesperline, | |
290 | mp->plane_fmt[i].sizeimage); | |
291 | break; | |
292 | case V4L2_BUF_TYPE_VIDEO_OVERLAY: | |
293 | case V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY: | |
294 | win = &p->fmt.win; | |
560dde24 HV |
295 | /* Note: we can't print the clip list here since the clips |
296 | * pointer is a userspace pointer, not a kernelspace | |
297 | * pointer. */ | |
298 | 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", | |
299 | win->w.width, win->w.height, win->w.left, win->w.top, | |
be6c64e4 | 300 | prt_names(win->field, v4l2_field_names), |
560dde24 HV |
301 | win->chromakey, win->clipcount, win->clips, |
302 | win->bitmap, win->global_alpha); | |
be6c64e4 HV |
303 | break; |
304 | case V4L2_BUF_TYPE_VBI_CAPTURE: | |
305 | case V4L2_BUF_TYPE_VBI_OUTPUT: | |
306 | vbi = &p->fmt.vbi; | |
307 | pr_cont(", sampling_rate=%u, offset=%u, samples_per_line=%u, " | |
308 | "sample_format=%c%c%c%c, start=%u,%u, count=%u,%u\n", | |
309 | vbi->sampling_rate, vbi->offset, | |
310 | vbi->samples_per_line, | |
311 | (vbi->sample_format & 0xff), | |
312 | (vbi->sample_format >> 8) & 0xff, | |
313 | (vbi->sample_format >> 16) & 0xff, | |
314 | (vbi->sample_format >> 24) & 0xff, | |
315 | vbi->start[0], vbi->start[1], | |
316 | vbi->count[0], vbi->count[1]); | |
317 | break; | |
318 | case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE: | |
319 | case V4L2_BUF_TYPE_SLICED_VBI_OUTPUT: | |
320 | sliced = &p->fmt.sliced; | |
321 | pr_cont(", service_set=0x%08x, io_size=%d\n", | |
322 | sliced->service_set, sliced->io_size); | |
323 | for (i = 0; i < 24; i++) | |
324 | printk(KERN_DEBUG "line[%02u]=0x%04x, 0x%04x\n", i, | |
325 | sliced->service_lines[0][i], | |
326 | sliced->service_lines[1][i]); | |
327 | break; | |
582c52cb AP |
328 | case V4L2_BUF_TYPE_SDR_CAPTURE: |
329 | sdr = &p->fmt.sdr; | |
330 | pr_cont(", pixelformat=%c%c%c%c\n", | |
331 | (sdr->pixelformat >> 0) & 0xff, | |
332 | (sdr->pixelformat >> 8) & 0xff, | |
333 | (sdr->pixelformat >> 16) & 0xff, | |
334 | (sdr->pixelformat >> 24) & 0xff); | |
335 | break; | |
be6c64e4 HV |
336 | } |
337 | } | |
338 | ||
339 | static void v4l_print_framebuffer(const void *arg, bool write_only) | |
340 | { | |
341 | const struct v4l2_framebuffer *p = arg; | |
342 | ||
343 | pr_cont("capability=0x%x, flags=0x%x, base=0x%p, width=%u, " | |
344 | "height=%u, pixelformat=%c%c%c%c, " | |
560dde24 | 345 | "bytesperline=%u, sizeimage=%u, colorspace=%d\n", |
be6c64e4 HV |
346 | p->capability, p->flags, p->base, |
347 | p->fmt.width, p->fmt.height, | |
348 | (p->fmt.pixelformat & 0xff), | |
349 | (p->fmt.pixelformat >> 8) & 0xff, | |
350 | (p->fmt.pixelformat >> 16) & 0xff, | |
351 | (p->fmt.pixelformat >> 24) & 0xff, | |
352 | p->fmt.bytesperline, p->fmt.sizeimage, | |
353 | p->fmt.colorspace); | |
354 | } | |
355 | ||
e325b244 HV |
356 | static void v4l_print_buftype(const void *arg, bool write_only) |
357 | { | |
358 | pr_cont("type=%s\n", prt_names(*(u32 *)arg, v4l2_type_names)); | |
359 | } | |
360 | ||
4b1e2e4d HV |
361 | static void v4l_print_modulator(const void *arg, bool write_only) |
362 | { | |
363 | const struct v4l2_modulator *p = arg; | |
364 | ||
365 | if (write_only) | |
560dde24 | 366 | pr_cont("index=%u, txsubchans=0x%x\n", p->index, p->txsubchans); |
4b1e2e4d | 367 | else |
27d5a87c | 368 | pr_cont("index=%u, name=%.*s, capability=0x%x, " |
4b1e2e4d | 369 | "rangelow=%u, rangehigh=%u, txsubchans=0x%x\n", |
27d5a87c | 370 | p->index, (int)sizeof(p->name), p->name, p->capability, |
4b1e2e4d HV |
371 | p->rangelow, p->rangehigh, p->txsubchans); |
372 | } | |
373 | ||
374 | static void v4l_print_tuner(const void *arg, bool write_only) | |
375 | { | |
376 | const struct v4l2_tuner *p = arg; | |
377 | ||
378 | if (write_only) | |
379 | pr_cont("index=%u, audmode=%u\n", p->index, p->audmode); | |
380 | else | |
27d5a87c | 381 | pr_cont("index=%u, name=%.*s, type=%u, capability=0x%x, " |
4b1e2e4d HV |
382 | "rangelow=%u, rangehigh=%u, signal=%u, afc=%d, " |
383 | "rxsubchans=0x%x, audmode=%u\n", | |
27d5a87c | 384 | p->index, (int)sizeof(p->name), p->name, p->type, |
4b1e2e4d HV |
385 | p->capability, p->rangelow, |
386 | p->rangehigh, p->signal, p->afc, | |
387 | p->rxsubchans, p->audmode); | |
388 | } | |
389 | ||
390 | static void v4l_print_frequency(const void *arg, bool write_only) | |
391 | { | |
392 | const struct v4l2_frequency *p = arg; | |
393 | ||
394 | pr_cont("tuner=%u, type=%u, frequency=%u\n", | |
395 | p->tuner, p->type, p->frequency); | |
396 | } | |
397 | ||
398 | static void v4l_print_standard(const void *arg, bool write_only) | |
399 | { | |
400 | const struct v4l2_standard *p = arg; | |
401 | ||
27d5a87c | 402 | pr_cont("index=%u, id=0x%Lx, name=%.*s, fps=%u/%u, " |
4b1e2e4d | 403 | "framelines=%u\n", p->index, |
27d5a87c | 404 | (unsigned long long)p->id, (int)sizeof(p->name), p->name, |
4b1e2e4d HV |
405 | p->frameperiod.numerator, |
406 | p->frameperiod.denominator, | |
407 | p->framelines); | |
408 | } | |
409 | ||
410 | static void v4l_print_std(const void *arg, bool write_only) | |
411 | { | |
412 | pr_cont("std=0x%08Lx\n", *(const long long unsigned *)arg); | |
413 | } | |
414 | ||
415 | static void v4l_print_hw_freq_seek(const void *arg, bool write_only) | |
416 | { | |
417 | const struct v4l2_hw_freq_seek *p = arg; | |
418 | ||
5e788317 HV |
419 | pr_cont("tuner=%u, type=%u, seek_upward=%u, wrap_around=%u, spacing=%u, " |
420 | "rangelow=%u, rangehigh=%u\n", | |
421 | p->tuner, p->type, p->seek_upward, p->wrap_around, p->spacing, | |
422 | p->rangelow, p->rangehigh); | |
4b1e2e4d HV |
423 | } |
424 | ||
eb3728ed | 425 | static void v4l_print_requestbuffers(const void *arg, bool write_only) |
59076122 | 426 | { |
eb3728ed HV |
427 | const struct v4l2_requestbuffers *p = arg; |
428 | ||
429 | pr_cont("count=%d, type=%s, memory=%s\n", | |
430 | p->count, | |
431 | prt_names(p->type, v4l2_type_names), | |
432 | prt_names(p->memory, v4l2_memory_names)); | |
59076122 HV |
433 | } |
434 | ||
eb3728ed | 435 | static void v4l_print_buffer(const void *arg, bool write_only) |
35ea11ff | 436 | { |
eb3728ed HV |
437 | const struct v4l2_buffer *p = arg; |
438 | const struct v4l2_timecode *tc = &p->timecode; | |
439 | const struct v4l2_plane *plane; | |
d14e6d76 | 440 | int i; |
35ea11ff | 441 | |
eb3728ed HV |
442 | pr_cont("%02ld:%02d:%02d.%08ld index=%d, type=%s, " |
443 | "flags=0x%08x, field=%s, sequence=%d, memory=%s", | |
35ea11ff HV |
444 | p->timestamp.tv_sec / 3600, |
445 | (int)(p->timestamp.tv_sec / 60) % 60, | |
446 | (int)(p->timestamp.tv_sec % 60), | |
b045979d | 447 | (long)p->timestamp.tv_usec, |
35ea11ff HV |
448 | p->index, |
449 | prt_names(p->type, v4l2_type_names), | |
eb3728ed HV |
450 | p->flags, prt_names(p->field, v4l2_field_names), |
451 | p->sequence, prt_names(p->memory, v4l2_memory_names)); | |
d14e6d76 PO |
452 | |
453 | if (V4L2_TYPE_IS_MULTIPLANAR(p->type) && p->m.planes) { | |
eb3728ed | 454 | pr_cont("\n"); |
d14e6d76 PO |
455 | for (i = 0; i < p->length; ++i) { |
456 | plane = &p->m.planes[i]; | |
eb3728ed | 457 | printk(KERN_DEBUG |
560dde24 | 458 | "plane %d: bytesused=%d, data_offset=0x%08x, " |
eb3728ed | 459 | "offset/userptr=0x%lx, length=%d\n", |
d14e6d76 PO |
460 | i, plane->bytesused, plane->data_offset, |
461 | plane->m.userptr, plane->length); | |
462 | } | |
463 | } else { | |
560dde24 | 464 | pr_cont(", bytesused=%d, offset/userptr=0x%lx, length=%d\n", |
d14e6d76 PO |
465 | p->bytesused, p->m.userptr, p->length); |
466 | } | |
467 | ||
eb3728ed HV |
468 | printk(KERN_DEBUG "timecode=%02d:%02d:%02d type=%d, " |
469 | "flags=0x%08x, frames=%d, userbits=0x%08x\n", | |
35ea11ff HV |
470 | tc->hours, tc->minutes, tc->seconds, |
471 | tc->type, tc->flags, tc->frames, *(__u32 *)tc->userbits); | |
472 | } | |
473 | ||
b799d09a TS |
474 | static void v4l_print_exportbuffer(const void *arg, bool write_only) |
475 | { | |
476 | const struct v4l2_exportbuffer *p = arg; | |
477 | ||
478 | pr_cont("fd=%d, type=%s, index=%u, plane=%u, flags=0x%08x\n", | |
479 | p->fd, prt_names(p->type, v4l2_type_names), | |
480 | p->index, p->plane, p->flags); | |
481 | } | |
482 | ||
eb3728ed HV |
483 | static void v4l_print_create_buffers(const void *arg, bool write_only) |
484 | { | |
485 | const struct v4l2_create_buffers *p = arg; | |
486 | ||
487 | pr_cont("index=%d, count=%d, memory=%s, ", | |
488 | p->index, p->count, | |
489 | prt_names(p->memory, v4l2_memory_names)); | |
490 | v4l_print_format(&p->format, write_only); | |
491 | } | |
492 | ||
493 | static void v4l_print_streamparm(const void *arg, bool write_only) | |
494 | { | |
495 | const struct v4l2_streamparm *p = arg; | |
496 | ||
497 | pr_cont("type=%s", prt_names(p->type, v4l2_type_names)); | |
498 | ||
499 | if (p->type == V4L2_BUF_TYPE_VIDEO_CAPTURE || | |
500 | p->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) { | |
501 | const struct v4l2_captureparm *c = &p->parm.capture; | |
502 | ||
503 | pr_cont(", capability=0x%x, capturemode=0x%x, timeperframe=%d/%d, " | |
504 | "extendedmode=%d, readbuffers=%d\n", | |
505 | c->capability, c->capturemode, | |
506 | c->timeperframe.numerator, c->timeperframe.denominator, | |
507 | c->extendedmode, c->readbuffers); | |
508 | } else if (p->type == V4L2_BUF_TYPE_VIDEO_OUTPUT || | |
509 | p->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) { | |
510 | const struct v4l2_outputparm *c = &p->parm.output; | |
511 | ||
512 | pr_cont(", capability=0x%x, outputmode=0x%x, timeperframe=%d/%d, " | |
513 | "extendedmode=%d, writebuffers=%d\n", | |
514 | c->capability, c->outputmode, | |
515 | c->timeperframe.numerator, c->timeperframe.denominator, | |
516 | c->extendedmode, c->writebuffers); | |
560dde24 HV |
517 | } else { |
518 | pr_cont("\n"); | |
eb3728ed HV |
519 | } |
520 | } | |
521 | ||
efbceecd HV |
522 | static void v4l_print_queryctrl(const void *arg, bool write_only) |
523 | { | |
524 | const struct v4l2_queryctrl *p = arg; | |
525 | ||
27d5a87c | 526 | pr_cont("id=0x%x, type=%d, name=%.*s, min/max=%d/%d, " |
efbceecd | 527 | "step=%d, default=%d, flags=0x%08x\n", |
27d5a87c | 528 | p->id, p->type, (int)sizeof(p->name), p->name, |
efbceecd HV |
529 | p->minimum, p->maximum, |
530 | p->step, p->default_value, p->flags); | |
531 | } | |
532 | ||
e6bee368 HV |
533 | static void v4l_print_query_ext_ctrl(const void *arg, bool write_only) |
534 | { | |
535 | const struct v4l2_query_ext_ctrl *p = arg; | |
536 | ||
537 | pr_cont("id=0x%x, type=%d, name=%.*s, min/max=%lld/%lld, " | |
538 | "step=%lld, default=%lld, flags=0x%08x, elem_size=%u, elems=%u, " | |
0176077a | 539 | "nr_of_dims=%u, dims=%u,%u,%u,%u\n", |
e6bee368 HV |
540 | p->id, p->type, (int)sizeof(p->name), p->name, |
541 | p->minimum, p->maximum, | |
542 | p->step, p->default_value, p->flags, | |
543 | p->elem_size, p->elems, p->nr_of_dims, | |
0176077a | 544 | p->dims[0], p->dims[1], p->dims[2], p->dims[3]); |
e6bee368 HV |
545 | } |
546 | ||
efbceecd HV |
547 | static void v4l_print_querymenu(const void *arg, bool write_only) |
548 | { | |
549 | const struct v4l2_querymenu *p = arg; | |
550 | ||
551 | pr_cont("id=0x%x, index=%d\n", p->id, p->index); | |
552 | } | |
553 | ||
554 | static void v4l_print_control(const void *arg, bool write_only) | |
555 | { | |
556 | const struct v4l2_control *p = arg; | |
557 | ||
558 | pr_cont("id=0x%x, value=%d\n", p->id, p->value); | |
559 | } | |
560 | ||
561 | static void v4l_print_ext_controls(const void *arg, bool write_only) | |
562 | { | |
563 | const struct v4l2_ext_controls *p = arg; | |
564 | int i; | |
565 | ||
566 | pr_cont("class=0x%x, count=%d, error_idx=%d", | |
567 | p->ctrl_class, p->count, p->error_idx); | |
568 | for (i = 0; i < p->count; i++) { | |
017ab36a | 569 | if (!p->controls[i].size) |
efbceecd HV |
570 | pr_cont(", id/val=0x%x/0x%x", |
571 | p->controls[i].id, p->controls[i].value); | |
572 | else | |
573 | pr_cont(", id/size=0x%x/%u", | |
574 | p->controls[i].id, p->controls[i].size); | |
575 | } | |
576 | pr_cont("\n"); | |
577 | } | |
578 | ||
d84f2d94 | 579 | static void v4l_print_cropcap(const void *arg, bool write_only) |
eb3728ed | 580 | { |
d84f2d94 HV |
581 | const struct v4l2_cropcap *p = arg; |
582 | ||
583 | pr_cont("type=%s, bounds wxh=%dx%d, x,y=%d,%d, " | |
a112fbaf | 584 | "defrect wxh=%dx%d, x,y=%d,%d, " |
d84f2d94 HV |
585 | "pixelaspect %d/%d\n", |
586 | prt_names(p->type, v4l2_type_names), | |
587 | p->bounds.width, p->bounds.height, | |
588 | p->bounds.left, p->bounds.top, | |
589 | p->defrect.width, p->defrect.height, | |
590 | p->defrect.left, p->defrect.top, | |
591 | p->pixelaspect.numerator, p->pixelaspect.denominator); | |
eb3728ed HV |
592 | } |
593 | ||
d84f2d94 | 594 | static void v4l_print_crop(const void *arg, bool write_only) |
35ea11ff | 595 | { |
d84f2d94 HV |
596 | const struct v4l2_crop *p = arg; |
597 | ||
598 | pr_cont("type=%s, wxh=%dx%d, x,y=%d,%d\n", | |
599 | prt_names(p->type, v4l2_type_names), | |
600 | p->c.width, p->c.height, | |
601 | p->c.left, p->c.top); | |
602 | } | |
603 | ||
604 | static void v4l_print_selection(const void *arg, bool write_only) | |
605 | { | |
606 | const struct v4l2_selection *p = arg; | |
607 | ||
608 | pr_cont("type=%s, target=%d, flags=0x%x, wxh=%dx%d, x,y=%d,%d\n", | |
609 | prt_names(p->type, v4l2_type_names), | |
610 | p->target, p->flags, | |
611 | p->r.width, p->r.height, p->r.left, p->r.top); | |
612 | } | |
613 | ||
d806f2df HV |
614 | static void v4l_print_jpegcompression(const void *arg, bool write_only) |
615 | { | |
616 | const struct v4l2_jpegcompression *p = arg; | |
617 | ||
618 | pr_cont("quality=%d, APPn=%d, APP_len=%d, " | |
619 | "COM_len=%d, jpeg_markers=0x%x\n", | |
620 | p->quality, p->APPn, p->APP_len, | |
621 | p->COM_len, p->jpeg_markers); | |
622 | } | |
623 | ||
624 | static void v4l_print_enc_idx(const void *arg, bool write_only) | |
625 | { | |
626 | const struct v4l2_enc_idx *p = arg; | |
627 | ||
628 | pr_cont("entries=%d, entries_cap=%d\n", | |
629 | p->entries, p->entries_cap); | |
630 | } | |
631 | ||
632 | static void v4l_print_encoder_cmd(const void *arg, bool write_only) | |
633 | { | |
634 | const struct v4l2_encoder_cmd *p = arg; | |
635 | ||
636 | pr_cont("cmd=%d, flags=0x%x\n", | |
637 | p->cmd, p->flags); | |
638 | } | |
639 | ||
640 | static void v4l_print_decoder_cmd(const void *arg, bool write_only) | |
641 | { | |
642 | const struct v4l2_decoder_cmd *p = arg; | |
643 | ||
644 | pr_cont("cmd=%d, flags=0x%x\n", p->cmd, p->flags); | |
645 | ||
646 | if (p->cmd == V4L2_DEC_CMD_START) | |
647 | pr_info("speed=%d, format=%u\n", | |
648 | p->start.speed, p->start.format); | |
649 | else if (p->cmd == V4L2_DEC_CMD_STOP) | |
650 | pr_info("pts=%llu\n", p->stop.pts); | |
651 | } | |
652 | ||
96b03d2a | 653 | static void v4l_print_dbg_chip_info(const void *arg, bool write_only) |
79b0c640 | 654 | { |
96b03d2a | 655 | const struct v4l2_dbg_chip_info *p = arg; |
79b0c640 HV |
656 | |
657 | pr_cont("type=%u, ", p->match.type); | |
3eef2510 | 658 | if (p->match.type == V4L2_CHIP_MATCH_I2C_DRIVER) |
79b0c640 HV |
659 | pr_cont("name=%.*s, ", |
660 | (int)sizeof(p->match.name), p->match.name); | |
661 | else | |
662 | pr_cont("addr=%u, ", p->match.addr); | |
663 | pr_cont("name=%.*s\n", (int)sizeof(p->name), p->name); | |
664 | } | |
665 | ||
f16f77b0 HV |
666 | static void v4l_print_dbg_register(const void *arg, bool write_only) |
667 | { | |
668 | const struct v4l2_dbg_register *p = arg; | |
669 | ||
670 | pr_cont("type=%u, ", p->match.type); | |
3eef2510 | 671 | if (p->match.type == V4L2_CHIP_MATCH_I2C_DRIVER) |
27d5a87c HV |
672 | pr_cont("name=%.*s, ", |
673 | (int)sizeof(p->match.name), p->match.name); | |
f16f77b0 HV |
674 | else |
675 | pr_cont("addr=%u, ", p->match.addr); | |
676 | pr_cont("reg=0x%llx, val=0x%llx\n", | |
677 | p->reg, p->val); | |
678 | } | |
679 | ||
efc626b0 | 680 | static void v4l_print_dv_timings(const void *arg, bool write_only) |
5d7758ee | 681 | { |
efc626b0 HV |
682 | const struct v4l2_dv_timings *p = arg; |
683 | ||
5d7758ee HV |
684 | switch (p->type) { |
685 | case V4L2_DV_BT_656_1120: | |
efc626b0 HV |
686 | pr_cont("type=bt-656/1120, interlaced=%u, " |
687 | "pixelclock=%llu, " | |
688 | "width=%u, height=%u, polarities=0x%x, " | |
689 | "hfrontporch=%u, hsync=%u, " | |
690 | "hbackporch=%u, vfrontporch=%u, " | |
691 | "vsync=%u, vbackporch=%u, " | |
692 | "il_vfrontporch=%u, il_vsync=%u, " | |
693 | "il_vbackporch=%u, standards=0x%x, flags=0x%x\n", | |
5d7758ee HV |
694 | p->bt.interlaced, p->bt.pixelclock, |
695 | p->bt.width, p->bt.height, | |
696 | p->bt.polarities, p->bt.hfrontporch, | |
697 | p->bt.hsync, p->bt.hbackporch, | |
698 | p->bt.vfrontporch, p->bt.vsync, | |
699 | p->bt.vbackporch, p->bt.il_vfrontporch, | |
700 | p->bt.il_vsync, p->bt.il_vbackporch, | |
701 | p->bt.standards, p->bt.flags); | |
702 | break; | |
703 | default: | |
efc626b0 | 704 | pr_cont("type=%d\n", p->type); |
5d7758ee HV |
705 | break; |
706 | } | |
707 | } | |
708 | ||
efc626b0 HV |
709 | static void v4l_print_enum_dv_timings(const void *arg, bool write_only) |
710 | { | |
711 | const struct v4l2_enum_dv_timings *p = arg; | |
712 | ||
713 | pr_cont("index=%u, ", p->index); | |
714 | v4l_print_dv_timings(&p->timings, write_only); | |
715 | } | |
716 | ||
717 | static void v4l_print_dv_timings_cap(const void *arg, bool write_only) | |
718 | { | |
719 | const struct v4l2_dv_timings_cap *p = arg; | |
720 | ||
721 | switch (p->type) { | |
722 | case V4L2_DV_BT_656_1120: | |
723 | pr_cont("type=bt-656/1120, width=%u-%u, height=%u-%u, " | |
724 | "pixelclock=%llu-%llu, standards=0x%x, capabilities=0x%x\n", | |
725 | p->bt.min_width, p->bt.max_width, | |
726 | p->bt.min_height, p->bt.max_height, | |
727 | p->bt.min_pixelclock, p->bt.max_pixelclock, | |
728 | p->bt.standards, p->bt.capabilities); | |
729 | break; | |
730 | default: | |
731 | pr_cont("type=%u\n", p->type); | |
732 | break; | |
733 | } | |
734 | } | |
735 | ||
458aa4a6 HV |
736 | static void v4l_print_frmsizeenum(const void *arg, bool write_only) |
737 | { | |
738 | const struct v4l2_frmsizeenum *p = arg; | |
739 | ||
740 | pr_cont("index=%u, pixelformat=%c%c%c%c, type=%u", | |
741 | p->index, | |
742 | (p->pixel_format & 0xff), | |
743 | (p->pixel_format >> 8) & 0xff, | |
744 | (p->pixel_format >> 16) & 0xff, | |
745 | (p->pixel_format >> 24) & 0xff, | |
746 | p->type); | |
747 | switch (p->type) { | |
748 | case V4L2_FRMSIZE_TYPE_DISCRETE: | |
560dde24 | 749 | pr_cont(", wxh=%ux%u\n", |
458aa4a6 HV |
750 | p->discrete.width, p->discrete.height); |
751 | break; | |
752 | case V4L2_FRMSIZE_TYPE_STEPWISE: | |
560dde24 | 753 | pr_cont(", min=%ux%u, max=%ux%u, step=%ux%u\n", |
458aa4a6 HV |
754 | p->stepwise.min_width, p->stepwise.min_height, |
755 | p->stepwise.step_width, p->stepwise.step_height, | |
756 | p->stepwise.max_width, p->stepwise.max_height); | |
757 | break; | |
758 | case V4L2_FRMSIZE_TYPE_CONTINUOUS: | |
759 | /* fall through */ | |
760 | default: | |
761 | pr_cont("\n"); | |
762 | break; | |
763 | } | |
764 | } | |
765 | ||
766 | static void v4l_print_frmivalenum(const void *arg, bool write_only) | |
767 | { | |
768 | const struct v4l2_frmivalenum *p = arg; | |
769 | ||
770 | pr_cont("index=%u, pixelformat=%c%c%c%c, wxh=%ux%u, type=%u", | |
771 | p->index, | |
772 | (p->pixel_format & 0xff), | |
773 | (p->pixel_format >> 8) & 0xff, | |
774 | (p->pixel_format >> 16) & 0xff, | |
775 | (p->pixel_format >> 24) & 0xff, | |
776 | p->width, p->height, p->type); | |
777 | switch (p->type) { | |
778 | case V4L2_FRMIVAL_TYPE_DISCRETE: | |
560dde24 | 779 | pr_cont(", fps=%d/%d\n", |
458aa4a6 HV |
780 | p->discrete.numerator, |
781 | p->discrete.denominator); | |
782 | break; | |
783 | case V4L2_FRMIVAL_TYPE_STEPWISE: | |
560dde24 | 784 | pr_cont(", min=%d/%d, max=%d/%d, step=%d/%d\n", |
458aa4a6 HV |
785 | p->stepwise.min.numerator, |
786 | p->stepwise.min.denominator, | |
787 | p->stepwise.max.numerator, | |
788 | p->stepwise.max.denominator, | |
789 | p->stepwise.step.numerator, | |
790 | p->stepwise.step.denominator); | |
791 | break; | |
792 | case V4L2_FRMIVAL_TYPE_CONTINUOUS: | |
793 | /* fall through */ | |
794 | default: | |
795 | pr_cont("\n"); | |
796 | break; | |
797 | } | |
798 | } | |
799 | ||
800 | static void v4l_print_event(const void *arg, bool write_only) | |
801 | { | |
802 | const struct v4l2_event *p = arg; | |
803 | const struct v4l2_event_ctrl *c; | |
804 | ||
805 | pr_cont("type=0x%x, pending=%u, sequence=%u, id=%u, " | |
806 | "timestamp=%lu.%9.9lu\n", | |
807 | p->type, p->pending, p->sequence, p->id, | |
808 | p->timestamp.tv_sec, p->timestamp.tv_nsec); | |
809 | switch (p->type) { | |
810 | case V4L2_EVENT_VSYNC: | |
811 | printk(KERN_DEBUG "field=%s\n", | |
812 | prt_names(p->u.vsync.field, v4l2_field_names)); | |
813 | break; | |
814 | case V4L2_EVENT_CTRL: | |
815 | c = &p->u.ctrl; | |
816 | printk(KERN_DEBUG "changes=0x%x, type=%u, ", | |
817 | c->changes, c->type); | |
818 | if (c->type == V4L2_CTRL_TYPE_INTEGER64) | |
819 | pr_cont("value64=%lld, ", c->value64); | |
820 | else | |
821 | pr_cont("value=%d, ", c->value); | |
560dde24 HV |
822 | pr_cont("flags=0x%x, minimum=%d, maximum=%d, step=%d, " |
823 | "default_value=%d\n", | |
458aa4a6 HV |
824 | c->flags, c->minimum, c->maximum, |
825 | c->step, c->default_value); | |
826 | break; | |
827 | case V4L2_EVENT_FRAME_SYNC: | |
828 | pr_cont("frame_sequence=%u\n", | |
829 | p->u.frame_sync.frame_sequence); | |
830 | break; | |
831 | } | |
832 | } | |
833 | ||
834 | static void v4l_print_event_subscription(const void *arg, bool write_only) | |
835 | { | |
836 | const struct v4l2_event_subscription *p = arg; | |
837 | ||
838 | pr_cont("type=0x%x, id=0x%x, flags=0x%x\n", | |
839 | p->type, p->id, p->flags); | |
840 | } | |
841 | ||
842 | static void v4l_print_sliced_vbi_cap(const void *arg, bool write_only) | |
843 | { | |
844 | const struct v4l2_sliced_vbi_cap *p = arg; | |
845 | int i; | |
846 | ||
847 | pr_cont("type=%s, service_set=0x%08x\n", | |
848 | prt_names(p->type, v4l2_type_names), p->service_set); | |
849 | for (i = 0; i < 24; i++) | |
850 | printk(KERN_DEBUG "line[%02u]=0x%04x, 0x%04x\n", i, | |
851 | p->service_lines[0][i], | |
852 | p->service_lines[1][i]); | |
853 | } | |
854 | ||
82b655bf HV |
855 | static void v4l_print_freq_band(const void *arg, bool write_only) |
856 | { | |
857 | const struct v4l2_frequency_band *p = arg; | |
858 | ||
859 | pr_cont("tuner=%u, type=%u, index=%u, capability=0x%x, " | |
560dde24 | 860 | "rangelow=%u, rangehigh=%u, modulation=0x%x\n", |
82b655bf HV |
861 | p->tuner, p->type, p->index, |
862 | p->capability, p->rangelow, | |
863 | p->rangehigh, p->modulation); | |
864 | } | |
865 | ||
dd519bb3 HV |
866 | static void v4l_print_edid(const void *arg, bool write_only) |
867 | { | |
868 | const struct v4l2_edid *p = arg; | |
869 | ||
870 | pr_cont("pad=%u, start_block=%u, blocks=%u\n", | |
871 | p->pad, p->start_block, p->blocks); | |
872 | } | |
873 | ||
efc626b0 HV |
874 | static void v4l_print_u32(const void *arg, bool write_only) |
875 | { | |
876 | pr_cont("value=%u\n", *(const u32 *)arg); | |
877 | } | |
878 | ||
879 | static void v4l_print_newline(const void *arg, bool write_only) | |
880 | { | |
881 | pr_cont("\n"); | |
882 | } | |
883 | ||
f18d8e07 HV |
884 | static void v4l_print_default(const void *arg, bool write_only) |
885 | { | |
886 | pr_cont("driver-specific ioctl\n"); | |
887 | } | |
888 | ||
efbceecd | 889 | static int check_ext_ctrls(struct v4l2_ext_controls *c, int allow_priv) |
35ea11ff HV |
890 | { |
891 | __u32 i; | |
892 | ||
893 | /* zero the reserved fields */ | |
894 | c->reserved[0] = c->reserved[1] = 0; | |
6b5a9492 | 895 | for (i = 0; i < c->count; i++) |
35ea11ff | 896 | c->controls[i].reserved2[0] = 0; |
6b5a9492 | 897 | |
35ea11ff HV |
898 | /* V4L2_CID_PRIVATE_BASE cannot be used as control class |
899 | when using extended controls. | |
900 | Only when passed in through VIDIOC_G_CTRL and VIDIOC_S_CTRL | |
901 | is it allowed for backwards compatibility. | |
902 | */ | |
903 | if (!allow_priv && c->ctrl_class == V4L2_CID_PRIVATE_BASE) | |
904 | return 0; | |
9b239b22 HV |
905 | if (c->ctrl_class == 0) |
906 | return 1; | |
35ea11ff HV |
907 | /* Check that all controls are from the same control class. */ |
908 | for (i = 0; i < c->count; i++) { | |
909 | if (V4L2_CTRL_ID2CLASS(c->controls[i].id) != c->ctrl_class) { | |
910 | c->error_idx = i; | |
911 | return 0; | |
912 | } | |
913 | } | |
914 | return 1; | |
915 | } | |
916 | ||
4b20259f | 917 | static int check_fmt(struct file *file, enum v4l2_buf_type type) |
35ea11ff | 918 | { |
4b20259f HV |
919 | struct video_device *vfd = video_devdata(file); |
920 | const struct v4l2_ioctl_ops *ops = vfd->ioctl_ops; | |
921 | bool is_vid = vfd->vfl_type == VFL_TYPE_GRABBER; | |
922 | bool is_vbi = vfd->vfl_type == VFL_TYPE_VBI; | |
582c52cb | 923 | bool is_sdr = vfd->vfl_type == VFL_TYPE_SDR; |
4b20259f HV |
924 | bool is_rx = vfd->vfl_dir != VFL_DIR_TX; |
925 | bool is_tx = vfd->vfl_dir != VFL_DIR_RX; | |
926 | ||
a399810c HV |
927 | if (ops == NULL) |
928 | return -EINVAL; | |
929 | ||
35ea11ff HV |
930 | switch (type) { |
931 | case V4L2_BUF_TYPE_VIDEO_CAPTURE: | |
4b20259f HV |
932 | if (is_vid && is_rx && |
933 | (ops->vidioc_g_fmt_vid_cap || ops->vidioc_g_fmt_vid_cap_mplane)) | |
d14e6d76 PO |
934 | return 0; |
935 | break; | |
936 | case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE: | |
4b20259f | 937 | if (is_vid && is_rx && ops->vidioc_g_fmt_vid_cap_mplane) |
35ea11ff HV |
938 | return 0; |
939 | break; | |
940 | case V4L2_BUF_TYPE_VIDEO_OVERLAY: | |
4b20259f | 941 | if (is_vid && is_rx && ops->vidioc_g_fmt_vid_overlay) |
35ea11ff HV |
942 | return 0; |
943 | break; | |
944 | case V4L2_BUF_TYPE_VIDEO_OUTPUT: | |
4b20259f HV |
945 | if (is_vid && is_tx && |
946 | (ops->vidioc_g_fmt_vid_out || ops->vidioc_g_fmt_vid_out_mplane)) | |
d14e6d76 PO |
947 | return 0; |
948 | break; | |
949 | case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE: | |
4b20259f | 950 | if (is_vid && is_tx && ops->vidioc_g_fmt_vid_out_mplane) |
35ea11ff HV |
951 | return 0; |
952 | break; | |
953 | case V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY: | |
4b20259f | 954 | if (is_vid && is_tx && ops->vidioc_g_fmt_vid_out_overlay) |
35ea11ff HV |
955 | return 0; |
956 | break; | |
957 | case V4L2_BUF_TYPE_VBI_CAPTURE: | |
4b20259f | 958 | if (is_vbi && is_rx && ops->vidioc_g_fmt_vbi_cap) |
35ea11ff HV |
959 | return 0; |
960 | break; | |
961 | case V4L2_BUF_TYPE_VBI_OUTPUT: | |
4b20259f | 962 | if (is_vbi && is_tx && ops->vidioc_g_fmt_vbi_out) |
35ea11ff HV |
963 | return 0; |
964 | break; | |
965 | case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE: | |
4b20259f | 966 | if (is_vbi && is_rx && ops->vidioc_g_fmt_sliced_vbi_cap) |
35ea11ff HV |
967 | return 0; |
968 | break; | |
969 | case V4L2_BUF_TYPE_SLICED_VBI_OUTPUT: | |
4b20259f | 970 | if (is_vbi && is_tx && ops->vidioc_g_fmt_sliced_vbi_out) |
35ea11ff HV |
971 | return 0; |
972 | break; | |
582c52cb AP |
973 | case V4L2_BUF_TYPE_SDR_CAPTURE: |
974 | if (is_sdr && is_rx && ops->vidioc_g_fmt_sdr_cap) | |
975 | return 0; | |
976 | break; | |
633c98e5 | 977 | default: |
35ea11ff HV |
978 | break; |
979 | } | |
980 | return -EINVAL; | |
981 | } | |
982 | ||
d52e2381 LP |
983 | static void v4l_sanitize_format(struct v4l2_format *fmt) |
984 | { | |
985 | unsigned int offset; | |
986 | ||
987 | /* | |
988 | * The v4l2_pix_format structure has been extended with fields that were | |
989 | * not previously required to be set to zero by applications. The priv | |
990 | * field, when set to a magic value, indicates the the extended fields | |
991 | * are valid. Otherwise they will contain undefined values. To simplify | |
992 | * the API towards drivers zero the extended fields and set the priv | |
993 | * field to the magic value when the extended pixel format structure | |
994 | * isn't used by applications. | |
995 | */ | |
996 | ||
997 | if (fmt->type != V4L2_BUF_TYPE_VIDEO_CAPTURE && | |
998 | fmt->type != V4L2_BUF_TYPE_VIDEO_OUTPUT) | |
999 | return; | |
1000 | ||
1001 | if (fmt->fmt.pix.priv == V4L2_PIX_FMT_PRIV_MAGIC) | |
1002 | return; | |
1003 | ||
1004 | fmt->fmt.pix.priv = V4L2_PIX_FMT_PRIV_MAGIC; | |
1005 | ||
1006 | offset = offsetof(struct v4l2_pix_format, priv) | |
1007 | + sizeof(fmt->fmt.pix.priv); | |
1008 | memset(((void *)&fmt->fmt.pix) + offset, 0, | |
1009 | sizeof(fmt->fmt.pix) - offset); | |
1010 | } | |
1011 | ||
59076122 HV |
1012 | static int v4l_querycap(const struct v4l2_ioctl_ops *ops, |
1013 | struct file *file, void *fh, void *arg) | |
1014 | { | |
1015 | struct v4l2_capability *cap = (struct v4l2_capability *)arg; | |
d52e2381 | 1016 | int ret; |
59076122 HV |
1017 | |
1018 | cap->version = LINUX_VERSION_CODE; | |
d52e2381 LP |
1019 | |
1020 | ret = ops->vidioc_querycap(file, fh, cap); | |
1021 | ||
1022 | cap->capabilities |= V4L2_CAP_EXT_PIX_FORMAT; | |
454a4e72 HV |
1023 | /* |
1024 | * Drivers MUST fill in device_caps, so check for this and | |
1025 | * warn if it was forgotten. | |
1026 | */ | |
6d7570c4 LA |
1027 | WARN(!(cap->capabilities & V4L2_CAP_DEVICE_CAPS) || |
1028 | !cap->device_caps, "Bad caps for driver %s, %x %x", | |
1029 | cap->driver, cap->capabilities, cap->device_caps); | |
796a2bd2 | 1030 | cap->device_caps |= V4L2_CAP_EXT_PIX_FORMAT; |
d52e2381 LP |
1031 | |
1032 | return ret; | |
59076122 HV |
1033 | } |
1034 | ||
1035 | static int v4l_s_input(const struct v4l2_ioctl_ops *ops, | |
1036 | struct file *file, void *fh, void *arg) | |
1037 | { | |
1038 | return ops->vidioc_s_input(file, fh, *(unsigned int *)arg); | |
1039 | } | |
1040 | ||
1041 | static int v4l_s_output(const struct v4l2_ioctl_ops *ops, | |
1042 | struct file *file, void *fh, void *arg) | |
1043 | { | |
1044 | return ops->vidioc_s_output(file, fh, *(unsigned int *)arg); | |
1045 | } | |
1046 | ||
d0547cba HV |
1047 | static int v4l_g_priority(const struct v4l2_ioctl_ops *ops, |
1048 | struct file *file, void *fh, void *arg) | |
1049 | { | |
1050 | struct video_device *vfd; | |
1051 | u32 *p = arg; | |
1052 | ||
d0547cba | 1053 | vfd = video_devdata(file); |
59b702ea | 1054 | *p = v4l2_prio_max(vfd->prio); |
d0547cba HV |
1055 | return 0; |
1056 | } | |
1057 | ||
1058 | static int v4l_s_priority(const struct v4l2_ioctl_ops *ops, | |
1059 | struct file *file, void *fh, void *arg) | |
1060 | { | |
1061 | struct video_device *vfd; | |
1062 | struct v4l2_fh *vfh; | |
1063 | u32 *p = arg; | |
1064 | ||
d0547cba | 1065 | vfd = video_devdata(file); |
2438e78a HV |
1066 | if (!test_bit(V4L2_FL_USES_V4L2_FH, &vfd->flags)) |
1067 | return -ENOTTY; | |
d0547cba | 1068 | vfh = file->private_data; |
59b702ea | 1069 | return v4l2_prio_change(vfd->prio, &vfh->prio, *p); |
d0547cba HV |
1070 | } |
1071 | ||
59076122 HV |
1072 | static int v4l_enuminput(const struct v4l2_ioctl_ops *ops, |
1073 | struct file *file, void *fh, void *arg) | |
1074 | { | |
73f35418 | 1075 | struct video_device *vfd = video_devdata(file); |
59076122 HV |
1076 | struct v4l2_input *p = arg; |
1077 | ||
1078 | /* | |
02fa6282 | 1079 | * We set the flags for CAP_DV_TIMINGS & |
59076122 HV |
1080 | * CAP_STD here based on ioctl handler provided by the |
1081 | * driver. If the driver doesn't support these | |
1082 | * for a specific input, it must override these flags. | |
1083 | */ | |
73f35418 | 1084 | if (is_valid_ioctl(vfd, VIDIOC_S_STD)) |
59076122 | 1085 | p->capabilities |= V4L2_IN_CAP_STD; |
59076122 HV |
1086 | |
1087 | return ops->vidioc_enum_input(file, fh, p); | |
1088 | } | |
1089 | ||
1090 | static int v4l_enumoutput(const struct v4l2_ioctl_ops *ops, | |
1091 | struct file *file, void *fh, void *arg) | |
1092 | { | |
73f35418 | 1093 | struct video_device *vfd = video_devdata(file); |
59076122 HV |
1094 | struct v4l2_output *p = arg; |
1095 | ||
1096 | /* | |
02fa6282 | 1097 | * We set the flags for CAP_DV_TIMINGS & |
59076122 HV |
1098 | * CAP_STD here based on ioctl handler provided by the |
1099 | * driver. If the driver doesn't support these | |
1100 | * for a specific output, it must override these flags. | |
1101 | */ | |
73f35418 | 1102 | if (is_valid_ioctl(vfd, VIDIOC_S_STD)) |
59076122 | 1103 | p->capabilities |= V4L2_OUT_CAP_STD; |
59076122 HV |
1104 | |
1105 | return ops->vidioc_enum_output(file, fh, p); | |
1106 | } | |
1107 | ||
ba300204 HV |
1108 | static void v4l_fill_fmtdesc(struct v4l2_fmtdesc *fmt) |
1109 | { | |
1110 | const unsigned sz = sizeof(fmt->description); | |
1111 | const char *descr = NULL; | |
1112 | u32 flags = 0; | |
1113 | ||
1114 | /* | |
1115 | * We depart from the normal coding style here since the descriptions | |
1116 | * should be aligned so it is easy to see which descriptions will be | |
1117 | * longer than 31 characters (the max length for a description). | |
1118 | * And frankly, this is easier to read anyway. | |
1119 | * | |
1120 | * Note that gcc will use O(log N) comparisons to find the right case. | |
1121 | */ | |
1122 | switch (fmt->pixelformat) { | |
1123 | /* Max description length mask: descr = "0123456789012345678901234567890" */ | |
1124 | case V4L2_PIX_FMT_RGB332: descr = "8-bit RGB 3-3-2"; break; | |
1125 | case V4L2_PIX_FMT_RGB444: descr = "16-bit A/XRGB 4-4-4-4"; break; | |
1126 | case V4L2_PIX_FMT_ARGB444: descr = "16-bit ARGB 4-4-4-4"; break; | |
1127 | case V4L2_PIX_FMT_XRGB444: descr = "16-bit XRGB 4-4-4-4"; break; | |
1128 | case V4L2_PIX_FMT_RGB555: descr = "16-bit A/XRGB 1-5-5-5"; break; | |
1129 | case V4L2_PIX_FMT_ARGB555: descr = "16-bit ARGB 1-5-5-5"; break; | |
1130 | case V4L2_PIX_FMT_XRGB555: descr = "16-bit XRGB 1-5-5-5"; break; | |
1131 | case V4L2_PIX_FMT_RGB565: descr = "16-bit RGB 5-6-5"; break; | |
1132 | case V4L2_PIX_FMT_RGB555X: descr = "16-bit A/XRGB 1-5-5-5 BE"; break; | |
1133 | case V4L2_PIX_FMT_ARGB555X: descr = "16-bit ARGB 1-5-5-5 BE"; break; | |
1134 | case V4L2_PIX_FMT_XRGB555X: descr = "16-bit XRGB 1-5-5-5 BE"; break; | |
1135 | case V4L2_PIX_FMT_RGB565X: descr = "16-bit RGB 5-6-5 BE"; break; | |
1136 | case V4L2_PIX_FMT_BGR666: descr = "18-bit BGRX 6-6-6-14"; break; | |
1137 | case V4L2_PIX_FMT_BGR24: descr = "24-bit BGR 8-8-8"; break; | |
1138 | case V4L2_PIX_FMT_RGB24: descr = "24-bit RGB 8-8-8"; break; | |
1139 | case V4L2_PIX_FMT_BGR32: descr = "32-bit BGRA/X 8-8-8-8"; break; | |
1140 | case V4L2_PIX_FMT_ABGR32: descr = "32-bit BGRA 8-8-8-8"; break; | |
1141 | case V4L2_PIX_FMT_XBGR32: descr = "32-bit BGRX 8-8-8-8"; break; | |
1142 | case V4L2_PIX_FMT_RGB32: descr = "32-bit A/XRGB 8-8-8-8"; break; | |
1143 | case V4L2_PIX_FMT_ARGB32: descr = "32-bit ARGB 8-8-8-8"; break; | |
1144 | case V4L2_PIX_FMT_XRGB32: descr = "32-bit XRGB 8-8-8-8"; break; | |
1145 | case V4L2_PIX_FMT_GREY: descr = "8-bit Greyscale"; break; | |
1146 | case V4L2_PIX_FMT_Y4: descr = "4-bit Greyscale"; break; | |
1147 | case V4L2_PIX_FMT_Y6: descr = "6-bit Greyscale"; break; | |
1148 | case V4L2_PIX_FMT_Y10: descr = "10-bit Greyscale"; break; | |
1149 | case V4L2_PIX_FMT_Y12: descr = "12-bit Greyscale"; break; | |
1150 | case V4L2_PIX_FMT_Y16: descr = "16-bit Greyscale"; break; | |
2e5e435f | 1151 | case V4L2_PIX_FMT_Y16_BE: descr = "16-bit Greyscale BE"; break; |
ba300204 HV |
1152 | case V4L2_PIX_FMT_Y10BPACK: descr = "10-bit Greyscale (Packed)"; break; |
1153 | case V4L2_PIX_FMT_PAL8: descr = "8-bit Palette"; break; | |
1154 | case V4L2_PIX_FMT_UV8: descr = "8-bit Chrominance UV 4-4"; break; | |
1155 | case V4L2_PIX_FMT_YVU410: descr = "Planar YVU 4:1:0"; break; | |
1156 | case V4L2_PIX_FMT_YVU420: descr = "Planar YVU 4:2:0"; break; | |
1157 | case V4L2_PIX_FMT_YUYV: descr = "YUYV 4:2:2"; break; | |
1158 | case V4L2_PIX_FMT_YYUV: descr = "YYUV 4:2:2"; break; | |
1159 | case V4L2_PIX_FMT_YVYU: descr = "YVYU 4:2:2"; break; | |
1160 | case V4L2_PIX_FMT_UYVY: descr = "UYVY 4:2:2"; break; | |
1161 | case V4L2_PIX_FMT_VYUY: descr = "VYUY 4:2:2"; break; | |
1162 | case V4L2_PIX_FMT_YUV422P: descr = "Planar YVU 4:2:2"; break; | |
1163 | case V4L2_PIX_FMT_YUV411P: descr = "Planar YUV 4:1:1"; break; | |
1164 | case V4L2_PIX_FMT_Y41P: descr = "YUV 4:1:1 (Packed)"; break; | |
1165 | case V4L2_PIX_FMT_YUV444: descr = "16-bit A/XYUV 4-4-4-4"; break; | |
1166 | case V4L2_PIX_FMT_YUV555: descr = "16-bit A/XYUV 1-5-5-5"; break; | |
1167 | case V4L2_PIX_FMT_YUV565: descr = "16-bit YUV 5-6-5"; break; | |
1168 | case V4L2_PIX_FMT_YUV32: descr = "32-bit A/XYUV 8-8-8-8"; break; | |
1169 | case V4L2_PIX_FMT_YUV410: descr = "Planar YUV 4:1:0"; break; | |
1170 | case V4L2_PIX_FMT_YUV420: descr = "Planar YUV 4:2:0"; break; | |
1171 | case V4L2_PIX_FMT_HI240: descr = "8-bit Dithered RGB (BTTV)"; break; | |
1172 | case V4L2_PIX_FMT_HM12: descr = "YUV 4:2:0 (16x16 Macroblocks)"; break; | |
1173 | case V4L2_PIX_FMT_M420: descr = "YUV 4:2:0 (M420)"; break; | |
1174 | case V4L2_PIX_FMT_NV12: descr = "Y/CbCr 4:2:0"; break; | |
1175 | case V4L2_PIX_FMT_NV21: descr = "Y/CrCb 4:2:0"; break; | |
1176 | case V4L2_PIX_FMT_NV16: descr = "Y/CbCr 4:2:2"; break; | |
1177 | case V4L2_PIX_FMT_NV61: descr = "Y/CrCb 4:2:2"; break; | |
1178 | case V4L2_PIX_FMT_NV24: descr = "Y/CbCr 4:4:4"; break; | |
1179 | case V4L2_PIX_FMT_NV42: descr = "Y/CrCb 4:4:4"; break; | |
1180 | case V4L2_PIX_FMT_NV12M: descr = "Y/CbCr 4:2:0 (N-C)"; break; | |
1181 | case V4L2_PIX_FMT_NV21M: descr = "Y/CrCb 4:2:0 (N-C)"; break; | |
1182 | case V4L2_PIX_FMT_NV16M: descr = "Y/CbCr 4:2:2 (N-C)"; break; | |
1183 | case V4L2_PIX_FMT_NV61M: descr = "Y/CrCb 4:2:2 (N-C)"; break; | |
1184 | case V4L2_PIX_FMT_NV12MT: descr = "Y/CbCr 4:2:0 (64x32 MB, N-C)"; break; | |
1185 | case V4L2_PIX_FMT_NV12MT_16X16: descr = "Y/CbCr 4:2:0 (16x16 MB, N-C)"; break; | |
1186 | case V4L2_PIX_FMT_YUV420M: descr = "Planar YUV 4:2:0 (N-C)"; break; | |
1187 | case V4L2_PIX_FMT_YVU420M: descr = "Planar YVU 4:2:0 (N-C)"; break; | |
1188 | case V4L2_PIX_FMT_SBGGR8: descr = "8-bit Bayer BGBG/GRGR"; break; | |
1189 | case V4L2_PIX_FMT_SGBRG8: descr = "8-bit Bayer GBGB/RGRG"; break; | |
1190 | case V4L2_PIX_FMT_SGRBG8: descr = "8-bit Bayer GRGR/BGBG"; break; | |
1191 | case V4L2_PIX_FMT_SRGGB8: descr = "8-bit Bayer RGRG/GBGB"; break; | |
1192 | case V4L2_PIX_FMT_SBGGR10: descr = "10-bit Bayer BGBG/GRGR"; break; | |
1193 | case V4L2_PIX_FMT_SGBRG10: descr = "10-bit Bayer GBGB/RGRG"; break; | |
1194 | case V4L2_PIX_FMT_SGRBG10: descr = "10-bit Bayer GRGR/BGBG"; break; | |
1195 | case V4L2_PIX_FMT_SRGGB10: descr = "10-bit Bayer RGRG/GBGB"; break; | |
1196 | case V4L2_PIX_FMT_SBGGR12: descr = "12-bit Bayer BGBG/GRGR"; break; | |
1197 | case V4L2_PIX_FMT_SGBRG12: descr = "12-bit Bayer GBGB/RGRG"; break; | |
1198 | case V4L2_PIX_FMT_SGRBG12: descr = "12-bit Bayer GRGR/BGBG"; break; | |
1199 | case V4L2_PIX_FMT_SRGGB12: descr = "12-bit Bayer RGRG/GBGB"; break; | |
1200 | case V4L2_PIX_FMT_SBGGR10P: descr = "10-bit Bayer BGBG/GRGR Packed"; break; | |
1201 | case V4L2_PIX_FMT_SGBRG10P: descr = "10-bit Bayer GBGB/RGRG Packed"; break; | |
1202 | case V4L2_PIX_FMT_SGRBG10P: descr = "10-bit Bayer GRGR/BGBG Packed"; break; | |
1203 | case V4L2_PIX_FMT_SRGGB10P: descr = "10-bit Bayer RGRG/GBGB Packed"; break; | |
1204 | case V4L2_PIX_FMT_SBGGR10ALAW8: descr = "8-bit Bayer BGBG/GRGR (A-law)"; break; | |
1205 | case V4L2_PIX_FMT_SGBRG10ALAW8: descr = "8-bit Bayer GBGB/RGRG (A-law)"; break; | |
1206 | case V4L2_PIX_FMT_SGRBG10ALAW8: descr = "8-bit Bayer GRGR/BGBG (A-law)"; break; | |
1207 | case V4L2_PIX_FMT_SRGGB10ALAW8: descr = "8-bit Bayer RGRG/GBGB (A-law)"; break; | |
1208 | case V4L2_PIX_FMT_SBGGR10DPCM8: descr = "8-bit Bayer BGBG/GRGR (DPCM)"; break; | |
1209 | case V4L2_PIX_FMT_SGBRG10DPCM8: descr = "8-bit Bayer GBGB/RGRG (DPCM)"; break; | |
1210 | case V4L2_PIX_FMT_SGRBG10DPCM8: descr = "8-bit Bayer GRGR/BGBG (DPCM)"; break; | |
1211 | case V4L2_PIX_FMT_SRGGB10DPCM8: descr = "8-bit Bayer RGRG/GBGB (DPCM)"; break; | |
1212 | case V4L2_PIX_FMT_SBGGR16: descr = "16-bit Bayer BGBG/GRGR (Exp.)"; break; | |
99b74277 | 1213 | case V4L2_PIX_FMT_SN9C20X_I420: descr = "GSPCA SN9C20X I420"; break; |
ba300204 HV |
1214 | case V4L2_PIX_FMT_SPCA501: descr = "GSPCA SPCA501"; break; |
1215 | case V4L2_PIX_FMT_SPCA505: descr = "GSPCA SPCA505"; break; | |
1216 | case V4L2_PIX_FMT_SPCA508: descr = "GSPCA SPCA508"; break; | |
1217 | case V4L2_PIX_FMT_STV0680: descr = "GSPCA STV0680"; break; | |
1218 | case V4L2_PIX_FMT_TM6000: descr = "A/V + VBI Mux Packet"; break; | |
1219 | case V4L2_PIX_FMT_CIT_YYVYUY: descr = "GSPCA CIT YYVYUY"; break; | |
1220 | case V4L2_PIX_FMT_KONICA420: descr = "GSPCA KONICA420"; break; | |
48fc10aa AP |
1221 | case V4L2_SDR_FMT_CU8: descr = "Complex U8"; break; |
1222 | case V4L2_SDR_FMT_CU16LE: descr = "Complex U16LE"; break; | |
ba300204 HV |
1223 | case V4L2_SDR_FMT_CS8: descr = "Complex S8"; break; |
1224 | case V4L2_SDR_FMT_CS14LE: descr = "Complex S14LE"; break; | |
1225 | case V4L2_SDR_FMT_RU12LE: descr = "Real U12LE"; break; | |
1226 | ||
1227 | default: | |
1228 | /* Compressed formats */ | |
1229 | flags = V4L2_FMT_FLAG_COMPRESSED; | |
1230 | switch (fmt->pixelformat) { | |
1231 | /* Max description length mask: descr = "0123456789012345678901234567890" */ | |
1232 | case V4L2_PIX_FMT_MJPEG: descr = "Motion-JPEG"; break; | |
1233 | case V4L2_PIX_FMT_JPEG: descr = "JFIF JPEG"; break; | |
1234 | case V4L2_PIX_FMT_DV: descr = "1394"; break; | |
1235 | case V4L2_PIX_FMT_MPEG: descr = "MPEG-1/2/4"; break; | |
1236 | case V4L2_PIX_FMT_H264: descr = "H.264"; break; | |
1237 | case V4L2_PIX_FMT_H264_NO_SC: descr = "H.264 (No Start Codes)"; break; | |
1238 | case V4L2_PIX_FMT_H264_MVC: descr = "H.264 MVC"; break; | |
1239 | case V4L2_PIX_FMT_H263: descr = "H.263"; break; | |
1240 | case V4L2_PIX_FMT_MPEG1: descr = "MPEG-1 ES"; break; | |
1241 | case V4L2_PIX_FMT_MPEG2: descr = "MPEG-2 ES"; break; | |
1242 | case V4L2_PIX_FMT_MPEG4: descr = "MPEG-4 part 2 ES"; break; | |
1243 | case V4L2_PIX_FMT_XVID: descr = "Xvid"; break; | |
1244 | case V4L2_PIX_FMT_VC1_ANNEX_G: descr = "VC-1 (SMPTE 412M Annex G)"; break; | |
1245 | case V4L2_PIX_FMT_VC1_ANNEX_L: descr = "VC-1 (SMPTE 412M Annex L)"; break; | |
1246 | case V4L2_PIX_FMT_VP8: descr = "VP8"; break; | |
1247 | case V4L2_PIX_FMT_CPIA1: descr = "GSPCA CPiA YUV"; break; | |
1248 | case V4L2_PIX_FMT_WNVA: descr = "WNVA"; break; | |
1249 | case V4L2_PIX_FMT_SN9C10X: descr = "GSPCA SN9C10X"; break; | |
1250 | case V4L2_PIX_FMT_PWC1: descr = "Raw Philips Webcam Type (Old)"; break; | |
1251 | case V4L2_PIX_FMT_PWC2: descr = "Raw Philips Webcam Type (New)"; break; | |
1252 | case V4L2_PIX_FMT_ET61X251: descr = "GSPCA ET61X251"; break; | |
1253 | case V4L2_PIX_FMT_SPCA561: descr = "GSPCA SPCA561"; break; | |
1254 | case V4L2_PIX_FMT_PAC207: descr = "GSPCA PAC207"; break; | |
1255 | case V4L2_PIX_FMT_MR97310A: descr = "GSPCA MR97310A"; break; | |
1256 | case V4L2_PIX_FMT_JL2005BCD: descr = "GSPCA JL2005BCD"; break; | |
1257 | case V4L2_PIX_FMT_SN9C2028: descr = "GSPCA SN9C2028"; break; | |
1258 | case V4L2_PIX_FMT_SQ905C: descr = "GSPCA SQ905C"; break; | |
1259 | case V4L2_PIX_FMT_PJPG: descr = "GSPCA PJPG"; break; | |
1260 | case V4L2_PIX_FMT_OV511: descr = "GSPCA OV511"; break; | |
1261 | case V4L2_PIX_FMT_OV518: descr = "GSPCA OV518"; break; | |
1262 | case V4L2_PIX_FMT_JPGL: descr = "JPEG Lite"; break; | |
1263 | case V4L2_PIX_FMT_SE401: descr = "GSPCA SE401"; break; | |
1264 | case V4L2_PIX_FMT_S5C_UYVY_JPG: descr = "S5C73MX interleaved UYVY/JPEG"; break; | |
1265 | default: | |
1266 | WARN(1, "Unknown pixelformat 0x%08x\n", fmt->pixelformat); | |
1267 | if (fmt->description[0]) | |
1268 | return; | |
1269 | flags = 0; | |
1270 | snprintf(fmt->description, sz, "%c%c%c%c%s", | |
1271 | (char)(fmt->pixelformat & 0x7f), | |
1272 | (char)((fmt->pixelformat >> 8) & 0x7f), | |
1273 | (char)((fmt->pixelformat >> 16) & 0x7f), | |
1274 | (char)((fmt->pixelformat >> 24) & 0x7f), | |
1275 | (fmt->pixelformat & (1 << 31)) ? "-BE" : ""); | |
1276 | break; | |
1277 | } | |
1278 | } | |
1279 | ||
1280 | if (descr) | |
1281 | WARN_ON(strlcpy(fmt->description, descr, sz) >= sz); | |
1282 | fmt->flags = flags; | |
1283 | } | |
1284 | ||
be6c64e4 HV |
1285 | static int v4l_enum_fmt(const struct v4l2_ioctl_ops *ops, |
1286 | struct file *file, void *fh, void *arg) | |
1287 | { | |
1288 | struct v4l2_fmtdesc *p = arg; | |
4b20259f | 1289 | struct video_device *vfd = video_devdata(file); |
ce71bbc9 HV |
1290 | bool is_vid = vfd->vfl_type == VFL_TYPE_GRABBER; |
1291 | bool is_sdr = vfd->vfl_type == VFL_TYPE_SDR; | |
4b20259f HV |
1292 | bool is_rx = vfd->vfl_dir != VFL_DIR_TX; |
1293 | bool is_tx = vfd->vfl_dir != VFL_DIR_RX; | |
ba300204 | 1294 | int ret = -EINVAL; |
be6c64e4 HV |
1295 | |
1296 | switch (p->type) { | |
1297 | case V4L2_BUF_TYPE_VIDEO_CAPTURE: | |
ce71bbc9 | 1298 | if (unlikely(!is_rx || !is_vid || !ops->vidioc_enum_fmt_vid_cap)) |
be6c64e4 | 1299 | break; |
ba300204 HV |
1300 | ret = ops->vidioc_enum_fmt_vid_cap(file, fh, arg); |
1301 | break; | |
be6c64e4 | 1302 | case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE: |
ce71bbc9 | 1303 | if (unlikely(!is_rx || !is_vid || !ops->vidioc_enum_fmt_vid_cap_mplane)) |
be6c64e4 | 1304 | break; |
ba300204 HV |
1305 | ret = ops->vidioc_enum_fmt_vid_cap_mplane(file, fh, arg); |
1306 | break; | |
be6c64e4 | 1307 | case V4L2_BUF_TYPE_VIDEO_OVERLAY: |
ce71bbc9 | 1308 | if (unlikely(!is_rx || !is_vid || !ops->vidioc_enum_fmt_vid_overlay)) |
be6c64e4 | 1309 | break; |
ba300204 HV |
1310 | ret = ops->vidioc_enum_fmt_vid_overlay(file, fh, arg); |
1311 | break; | |
be6c64e4 | 1312 | case V4L2_BUF_TYPE_VIDEO_OUTPUT: |
ce71bbc9 | 1313 | if (unlikely(!is_tx || !is_vid || !ops->vidioc_enum_fmt_vid_out)) |
be6c64e4 | 1314 | break; |
ba300204 HV |
1315 | ret = ops->vidioc_enum_fmt_vid_out(file, fh, arg); |
1316 | break; | |
be6c64e4 | 1317 | case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE: |
ce71bbc9 | 1318 | if (unlikely(!is_tx || !is_vid || !ops->vidioc_enum_fmt_vid_out_mplane)) |
be6c64e4 | 1319 | break; |
ba300204 HV |
1320 | ret = ops->vidioc_enum_fmt_vid_out_mplane(file, fh, arg); |
1321 | break; | |
582c52cb | 1322 | case V4L2_BUF_TYPE_SDR_CAPTURE: |
ce71bbc9 | 1323 | if (unlikely(!is_rx || !is_sdr || !ops->vidioc_enum_fmt_sdr_cap)) |
582c52cb | 1324 | break; |
ba300204 HV |
1325 | ret = ops->vidioc_enum_fmt_sdr_cap(file, fh, arg); |
1326 | break; | |
be6c64e4 | 1327 | } |
ba300204 HV |
1328 | if (ret == 0) |
1329 | v4l_fill_fmtdesc(p); | |
1330 | return ret; | |
be6c64e4 HV |
1331 | } |
1332 | ||
1333 | static int v4l_g_fmt(const struct v4l2_ioctl_ops *ops, | |
1334 | struct file *file, void *fh, void *arg) | |
1335 | { | |
1336 | struct v4l2_format *p = arg; | |
4b20259f HV |
1337 | struct video_device *vfd = video_devdata(file); |
1338 | bool is_vid = vfd->vfl_type == VFL_TYPE_GRABBER; | |
582c52cb | 1339 | bool is_sdr = vfd->vfl_type == VFL_TYPE_SDR; |
4b20259f HV |
1340 | bool is_rx = vfd->vfl_dir != VFL_DIR_TX; |
1341 | bool is_tx = vfd->vfl_dir != VFL_DIR_RX; | |
d52e2381 LP |
1342 | int ret; |
1343 | ||
e5ce558a HV |
1344 | /* |
1345 | * fmt can't be cleared for these overlay types due to the 'clips' | |
1346 | * 'clipcount' and 'bitmap' pointers in struct v4l2_window. | |
1347 | * Those are provided by the user. So handle these two overlay types | |
1348 | * first, and then just do a simple memset for the other types. | |
1349 | */ | |
1350 | switch (p->type) { | |
1351 | case V4L2_BUF_TYPE_VIDEO_OVERLAY: | |
1352 | case V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY: { | |
4d1afa51 | 1353 | struct v4l2_clip __user *clips = p->fmt.win.clips; |
e5ce558a | 1354 | u32 clipcount = p->fmt.win.clipcount; |
4d1afa51 | 1355 | void __user *bitmap = p->fmt.win.bitmap; |
e5ce558a HV |
1356 | |
1357 | memset(&p->fmt, 0, sizeof(p->fmt)); | |
1358 | p->fmt.win.clips = clips; | |
1359 | p->fmt.win.clipcount = clipcount; | |
1360 | p->fmt.win.bitmap = bitmap; | |
1361 | break; | |
1362 | } | |
1363 | default: | |
1364 | memset(&p->fmt, 0, sizeof(p->fmt)); | |
1365 | break; | |
1366 | } | |
1367 | ||
be6c64e4 HV |
1368 | switch (p->type) { |
1369 | case V4L2_BUF_TYPE_VIDEO_CAPTURE: | |
4b20259f | 1370 | if (unlikely(!is_rx || !is_vid || !ops->vidioc_g_fmt_vid_cap)) |
be6c64e4 | 1371 | break; |
48f2650a | 1372 | p->fmt.pix.priv = V4L2_PIX_FMT_PRIV_MAGIC; |
d52e2381 | 1373 | ret = ops->vidioc_g_fmt_vid_cap(file, fh, arg); |
48f2650a | 1374 | /* just in case the driver zeroed it again */ |
d52e2381 LP |
1375 | p->fmt.pix.priv = V4L2_PIX_FMT_PRIV_MAGIC; |
1376 | return ret; | |
be6c64e4 | 1377 | case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE: |
4b20259f | 1378 | if (unlikely(!is_rx || !is_vid || !ops->vidioc_g_fmt_vid_cap_mplane)) |
be6c64e4 HV |
1379 | break; |
1380 | return ops->vidioc_g_fmt_vid_cap_mplane(file, fh, arg); | |
1381 | case V4L2_BUF_TYPE_VIDEO_OVERLAY: | |
4b20259f | 1382 | if (unlikely(!is_rx || !is_vid || !ops->vidioc_g_fmt_vid_overlay)) |
be6c64e4 HV |
1383 | break; |
1384 | return ops->vidioc_g_fmt_vid_overlay(file, fh, arg); | |
4b20259f HV |
1385 | case V4L2_BUF_TYPE_VBI_CAPTURE: |
1386 | if (unlikely(!is_rx || is_vid || !ops->vidioc_g_fmt_vbi_cap)) | |
1387 | break; | |
1388 | return ops->vidioc_g_fmt_vbi_cap(file, fh, arg); | |
1389 | case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE: | |
1390 | if (unlikely(!is_rx || is_vid || !ops->vidioc_g_fmt_sliced_vbi_cap)) | |
1391 | break; | |
1392 | return ops->vidioc_g_fmt_sliced_vbi_cap(file, fh, arg); | |
be6c64e4 | 1393 | case V4L2_BUF_TYPE_VIDEO_OUTPUT: |
4b20259f | 1394 | if (unlikely(!is_tx || !is_vid || !ops->vidioc_g_fmt_vid_out)) |
be6c64e4 | 1395 | break; |
48f2650a | 1396 | p->fmt.pix.priv = V4L2_PIX_FMT_PRIV_MAGIC; |
d52e2381 | 1397 | ret = ops->vidioc_g_fmt_vid_out(file, fh, arg); |
48f2650a | 1398 | /* just in case the driver zeroed it again */ |
d52e2381 LP |
1399 | p->fmt.pix.priv = V4L2_PIX_FMT_PRIV_MAGIC; |
1400 | return ret; | |
be6c64e4 | 1401 | case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE: |
4b20259f | 1402 | if (unlikely(!is_tx || !is_vid || !ops->vidioc_g_fmt_vid_out_mplane)) |
be6c64e4 HV |
1403 | break; |
1404 | return ops->vidioc_g_fmt_vid_out_mplane(file, fh, arg); | |
1405 | case V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY: | |
4b20259f | 1406 | if (unlikely(!is_tx || !is_vid || !ops->vidioc_g_fmt_vid_out_overlay)) |
be6c64e4 HV |
1407 | break; |
1408 | return ops->vidioc_g_fmt_vid_out_overlay(file, fh, arg); | |
be6c64e4 | 1409 | case V4L2_BUF_TYPE_VBI_OUTPUT: |
4b20259f | 1410 | if (unlikely(!is_tx || is_vid || !ops->vidioc_g_fmt_vbi_out)) |
be6c64e4 HV |
1411 | break; |
1412 | return ops->vidioc_g_fmt_vbi_out(file, fh, arg); | |
be6c64e4 | 1413 | case V4L2_BUF_TYPE_SLICED_VBI_OUTPUT: |
4b20259f | 1414 | if (unlikely(!is_tx || is_vid || !ops->vidioc_g_fmt_sliced_vbi_out)) |
be6c64e4 HV |
1415 | break; |
1416 | return ops->vidioc_g_fmt_sliced_vbi_out(file, fh, arg); | |
582c52cb AP |
1417 | case V4L2_BUF_TYPE_SDR_CAPTURE: |
1418 | if (unlikely(!is_rx || !is_sdr || !ops->vidioc_g_fmt_sdr_cap)) | |
1419 | break; | |
1420 | return ops->vidioc_g_fmt_sdr_cap(file, fh, arg); | |
be6c64e4 HV |
1421 | } |
1422 | return -EINVAL; | |
1423 | } | |
1424 | ||
1425 | static int v4l_s_fmt(const struct v4l2_ioctl_ops *ops, | |
1426 | struct file *file, void *fh, void *arg) | |
1427 | { | |
1428 | struct v4l2_format *p = arg; | |
4b20259f HV |
1429 | struct video_device *vfd = video_devdata(file); |
1430 | bool is_vid = vfd->vfl_type == VFL_TYPE_GRABBER; | |
582c52cb | 1431 | bool is_sdr = vfd->vfl_type == VFL_TYPE_SDR; |
4b20259f HV |
1432 | bool is_rx = vfd->vfl_dir != VFL_DIR_TX; |
1433 | bool is_tx = vfd->vfl_dir != VFL_DIR_RX; | |
48f2650a | 1434 | int ret; |
be6c64e4 | 1435 | |
d52e2381 LP |
1436 | v4l_sanitize_format(p); |
1437 | ||
be6c64e4 HV |
1438 | switch (p->type) { |
1439 | case V4L2_BUF_TYPE_VIDEO_CAPTURE: | |
4b20259f | 1440 | if (unlikely(!is_rx || !is_vid || !ops->vidioc_s_fmt_vid_cap)) |
be6c64e4 HV |
1441 | break; |
1442 | CLEAR_AFTER_FIELD(p, fmt.pix); | |
48f2650a HV |
1443 | ret = ops->vidioc_s_fmt_vid_cap(file, fh, arg); |
1444 | /* just in case the driver zeroed it again */ | |
1445 | p->fmt.pix.priv = V4L2_PIX_FMT_PRIV_MAGIC; | |
1446 | return ret; | |
be6c64e4 | 1447 | case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE: |
4b20259f | 1448 | if (unlikely(!is_rx || !is_vid || !ops->vidioc_s_fmt_vid_cap_mplane)) |
be6c64e4 HV |
1449 | break; |
1450 | CLEAR_AFTER_FIELD(p, fmt.pix_mp); | |
1451 | return ops->vidioc_s_fmt_vid_cap_mplane(file, fh, arg); | |
1452 | case V4L2_BUF_TYPE_VIDEO_OVERLAY: | |
4b20259f | 1453 | if (unlikely(!is_rx || !is_vid || !ops->vidioc_s_fmt_vid_overlay)) |
be6c64e4 HV |
1454 | break; |
1455 | CLEAR_AFTER_FIELD(p, fmt.win); | |
1456 | return ops->vidioc_s_fmt_vid_overlay(file, fh, arg); | |
4b20259f HV |
1457 | case V4L2_BUF_TYPE_VBI_CAPTURE: |
1458 | if (unlikely(!is_rx || is_vid || !ops->vidioc_s_fmt_vbi_cap)) | |
1459 | break; | |
1460 | CLEAR_AFTER_FIELD(p, fmt.vbi); | |
1461 | return ops->vidioc_s_fmt_vbi_cap(file, fh, arg); | |
1462 | case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE: | |
1463 | if (unlikely(!is_rx || is_vid || !ops->vidioc_s_fmt_sliced_vbi_cap)) | |
1464 | break; | |
1465 | CLEAR_AFTER_FIELD(p, fmt.sliced); | |
1466 | return ops->vidioc_s_fmt_sliced_vbi_cap(file, fh, arg); | |
be6c64e4 | 1467 | case V4L2_BUF_TYPE_VIDEO_OUTPUT: |
4b20259f | 1468 | if (unlikely(!is_tx || !is_vid || !ops->vidioc_s_fmt_vid_out)) |
be6c64e4 HV |
1469 | break; |
1470 | CLEAR_AFTER_FIELD(p, fmt.pix); | |
48f2650a HV |
1471 | ret = ops->vidioc_s_fmt_vid_out(file, fh, arg); |
1472 | /* just in case the driver zeroed it again */ | |
1473 | p->fmt.pix.priv = V4L2_PIX_FMT_PRIV_MAGIC; | |
1474 | return ret; | |
be6c64e4 | 1475 | case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE: |
4b20259f | 1476 | if (unlikely(!is_tx || !is_vid || !ops->vidioc_s_fmt_vid_out_mplane)) |
be6c64e4 HV |
1477 | break; |
1478 | CLEAR_AFTER_FIELD(p, fmt.pix_mp); | |
1479 | return ops->vidioc_s_fmt_vid_out_mplane(file, fh, arg); | |
1480 | case V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY: | |
4b20259f | 1481 | if (unlikely(!is_tx || !is_vid || !ops->vidioc_s_fmt_vid_out_overlay)) |
be6c64e4 HV |
1482 | break; |
1483 | CLEAR_AFTER_FIELD(p, fmt.win); | |
1484 | return ops->vidioc_s_fmt_vid_out_overlay(file, fh, arg); | |
be6c64e4 | 1485 | case V4L2_BUF_TYPE_VBI_OUTPUT: |
4b20259f | 1486 | if (unlikely(!is_tx || is_vid || !ops->vidioc_s_fmt_vbi_out)) |
be6c64e4 HV |
1487 | break; |
1488 | CLEAR_AFTER_FIELD(p, fmt.vbi); | |
1489 | return ops->vidioc_s_fmt_vbi_out(file, fh, arg); | |
be6c64e4 | 1490 | case V4L2_BUF_TYPE_SLICED_VBI_OUTPUT: |
4b20259f | 1491 | if (unlikely(!is_tx || is_vid || !ops->vidioc_s_fmt_sliced_vbi_out)) |
be6c64e4 HV |
1492 | break; |
1493 | CLEAR_AFTER_FIELD(p, fmt.sliced); | |
1494 | return ops->vidioc_s_fmt_sliced_vbi_out(file, fh, arg); | |
582c52cb AP |
1495 | case V4L2_BUF_TYPE_SDR_CAPTURE: |
1496 | if (unlikely(!is_rx || !is_sdr || !ops->vidioc_s_fmt_sdr_cap)) | |
1497 | break; | |
1498 | CLEAR_AFTER_FIELD(p, fmt.sdr); | |
1499 | return ops->vidioc_s_fmt_sdr_cap(file, fh, arg); | |
be6c64e4 HV |
1500 | } |
1501 | return -EINVAL; | |
1502 | } | |
1503 | ||
1504 | static int v4l_try_fmt(const struct v4l2_ioctl_ops *ops, | |
1505 | struct file *file, void *fh, void *arg) | |
1506 | { | |
1507 | struct v4l2_format *p = arg; | |
4b20259f HV |
1508 | struct video_device *vfd = video_devdata(file); |
1509 | bool is_vid = vfd->vfl_type == VFL_TYPE_GRABBER; | |
582c52cb | 1510 | bool is_sdr = vfd->vfl_type == VFL_TYPE_SDR; |
4b20259f HV |
1511 | bool is_rx = vfd->vfl_dir != VFL_DIR_TX; |
1512 | bool is_tx = vfd->vfl_dir != VFL_DIR_RX; | |
48f2650a | 1513 | int ret; |
be6c64e4 | 1514 | |
d52e2381 LP |
1515 | v4l_sanitize_format(p); |
1516 | ||
be6c64e4 HV |
1517 | switch (p->type) { |
1518 | case V4L2_BUF_TYPE_VIDEO_CAPTURE: | |
4b20259f | 1519 | if (unlikely(!is_rx || !is_vid || !ops->vidioc_try_fmt_vid_cap)) |
be6c64e4 HV |
1520 | break; |
1521 | CLEAR_AFTER_FIELD(p, fmt.pix); | |
48f2650a HV |
1522 | ret = ops->vidioc_try_fmt_vid_cap(file, fh, arg); |
1523 | /* just in case the driver zeroed it again */ | |
1524 | p->fmt.pix.priv = V4L2_PIX_FMT_PRIV_MAGIC; | |
1525 | return ret; | |
be6c64e4 | 1526 | case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE: |
4b20259f | 1527 | if (unlikely(!is_rx || !is_vid || !ops->vidioc_try_fmt_vid_cap_mplane)) |
be6c64e4 HV |
1528 | break; |
1529 | CLEAR_AFTER_FIELD(p, fmt.pix_mp); | |
1530 | return ops->vidioc_try_fmt_vid_cap_mplane(file, fh, arg); | |
1531 | case V4L2_BUF_TYPE_VIDEO_OVERLAY: | |
4b20259f | 1532 | if (unlikely(!is_rx || !is_vid || !ops->vidioc_try_fmt_vid_overlay)) |
be6c64e4 HV |
1533 | break; |
1534 | CLEAR_AFTER_FIELD(p, fmt.win); | |
1535 | return ops->vidioc_try_fmt_vid_overlay(file, fh, arg); | |
4b20259f HV |
1536 | case V4L2_BUF_TYPE_VBI_CAPTURE: |
1537 | if (unlikely(!is_rx || is_vid || !ops->vidioc_try_fmt_vbi_cap)) | |
1538 | break; | |
1539 | CLEAR_AFTER_FIELD(p, fmt.vbi); | |
1540 | return ops->vidioc_try_fmt_vbi_cap(file, fh, arg); | |
1541 | case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE: | |
1542 | if (unlikely(!is_rx || is_vid || !ops->vidioc_try_fmt_sliced_vbi_cap)) | |
1543 | break; | |
1544 | CLEAR_AFTER_FIELD(p, fmt.sliced); | |
1545 | return ops->vidioc_try_fmt_sliced_vbi_cap(file, fh, arg); | |
be6c64e4 | 1546 | case V4L2_BUF_TYPE_VIDEO_OUTPUT: |
4b20259f | 1547 | if (unlikely(!is_tx || !is_vid || !ops->vidioc_try_fmt_vid_out)) |
be6c64e4 HV |
1548 | break; |
1549 | CLEAR_AFTER_FIELD(p, fmt.pix); | |
48f2650a HV |
1550 | ret = ops->vidioc_try_fmt_vid_out(file, fh, arg); |
1551 | /* just in case the driver zeroed it again */ | |
1552 | p->fmt.pix.priv = V4L2_PIX_FMT_PRIV_MAGIC; | |
1553 | return ret; | |
be6c64e4 | 1554 | case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE: |
4b20259f | 1555 | if (unlikely(!is_tx || !is_vid || !ops->vidioc_try_fmt_vid_out_mplane)) |
be6c64e4 HV |
1556 | break; |
1557 | CLEAR_AFTER_FIELD(p, fmt.pix_mp); | |
1558 | return ops->vidioc_try_fmt_vid_out_mplane(file, fh, arg); | |
1559 | case V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY: | |
4b20259f | 1560 | if (unlikely(!is_tx || !is_vid || !ops->vidioc_try_fmt_vid_out_overlay)) |
be6c64e4 HV |
1561 | break; |
1562 | CLEAR_AFTER_FIELD(p, fmt.win); | |
1563 | return ops->vidioc_try_fmt_vid_out_overlay(file, fh, arg); | |
be6c64e4 | 1564 | case V4L2_BUF_TYPE_VBI_OUTPUT: |
4b20259f | 1565 | if (unlikely(!is_tx || is_vid || !ops->vidioc_try_fmt_vbi_out)) |
be6c64e4 HV |
1566 | break; |
1567 | CLEAR_AFTER_FIELD(p, fmt.vbi); | |
1568 | return ops->vidioc_try_fmt_vbi_out(file, fh, arg); | |
be6c64e4 | 1569 | case V4L2_BUF_TYPE_SLICED_VBI_OUTPUT: |
4b20259f | 1570 | if (unlikely(!is_tx || is_vid || !ops->vidioc_try_fmt_sliced_vbi_out)) |
be6c64e4 HV |
1571 | break; |
1572 | CLEAR_AFTER_FIELD(p, fmt.sliced); | |
1573 | return ops->vidioc_try_fmt_sliced_vbi_out(file, fh, arg); | |
582c52cb AP |
1574 | case V4L2_BUF_TYPE_SDR_CAPTURE: |
1575 | if (unlikely(!is_rx || !is_sdr || !ops->vidioc_try_fmt_sdr_cap)) | |
1576 | break; | |
1577 | CLEAR_AFTER_FIELD(p, fmt.sdr); | |
1578 | return ops->vidioc_try_fmt_sdr_cap(file, fh, arg); | |
be6c64e4 HV |
1579 | } |
1580 | return -EINVAL; | |
1581 | } | |
1582 | ||
e325b244 HV |
1583 | static int v4l_streamon(const struct v4l2_ioctl_ops *ops, |
1584 | struct file *file, void *fh, void *arg) | |
1585 | { | |
1586 | return ops->vidioc_streamon(file, fh, *(unsigned int *)arg); | |
1587 | } | |
1588 | ||
1589 | static int v4l_streamoff(const struct v4l2_ioctl_ops *ops, | |
1590 | struct file *file, void *fh, void *arg) | |
1591 | { | |
1592 | return ops->vidioc_streamoff(file, fh, *(unsigned int *)arg); | |
1593 | } | |
1594 | ||
4b1e2e4d HV |
1595 | static int v4l_g_tuner(const struct v4l2_ioctl_ops *ops, |
1596 | struct file *file, void *fh, void *arg) | |
1597 | { | |
1598 | struct video_device *vfd = video_devdata(file); | |
1599 | struct v4l2_tuner *p = arg; | |
82b655bf | 1600 | int err; |
4b1e2e4d HV |
1601 | |
1602 | p->type = (vfd->vfl_type == VFL_TYPE_RADIO) ? | |
1603 | V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV; | |
82b655bf HV |
1604 | err = ops->vidioc_g_tuner(file, fh, p); |
1605 | if (!err) | |
1606 | p->capability |= V4L2_TUNER_CAP_FREQ_BANDS; | |
1607 | return err; | |
4b1e2e4d HV |
1608 | } |
1609 | ||
1610 | static int v4l_s_tuner(const struct v4l2_ioctl_ops *ops, | |
1611 | struct file *file, void *fh, void *arg) | |
1612 | { | |
1613 | struct video_device *vfd = video_devdata(file); | |
1614 | struct v4l2_tuner *p = arg; | |
1615 | ||
1616 | p->type = (vfd->vfl_type == VFL_TYPE_RADIO) ? | |
1617 | V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV; | |
1618 | return ops->vidioc_s_tuner(file, fh, p); | |
1619 | } | |
1620 | ||
82b655bf HV |
1621 | static int v4l_g_modulator(const struct v4l2_ioctl_ops *ops, |
1622 | struct file *file, void *fh, void *arg) | |
1623 | { | |
1624 | struct v4l2_modulator *p = arg; | |
1625 | int err; | |
1626 | ||
1627 | err = ops->vidioc_g_modulator(file, fh, p); | |
1628 | if (!err) | |
1629 | p->capability |= V4L2_TUNER_CAP_FREQ_BANDS; | |
1630 | return err; | |
1631 | } | |
1632 | ||
4b1e2e4d HV |
1633 | static int v4l_g_frequency(const struct v4l2_ioctl_ops *ops, |
1634 | struct file *file, void *fh, void *arg) | |
1635 | { | |
1636 | struct video_device *vfd = video_devdata(file); | |
1637 | struct v4l2_frequency *p = arg; | |
1638 | ||
84099a28 AP |
1639 | if (vfd->vfl_type == VFL_TYPE_SDR) |
1640 | p->type = V4L2_TUNER_ADC; | |
1641 | else | |
1642 | p->type = (vfd->vfl_type == VFL_TYPE_RADIO) ? | |
1643 | V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV; | |
4b1e2e4d HV |
1644 | return ops->vidioc_g_frequency(file, fh, p); |
1645 | } | |
1646 | ||
1647 | static int v4l_s_frequency(const struct v4l2_ioctl_ops *ops, | |
1648 | struct file *file, void *fh, void *arg) | |
1649 | { | |
1650 | struct video_device *vfd = video_devdata(file); | |
b530a447 | 1651 | const struct v4l2_frequency *p = arg; |
4b1e2e4d HV |
1652 | enum v4l2_tuner_type type; |
1653 | ||
84099a28 AP |
1654 | if (vfd->vfl_type == VFL_TYPE_SDR) { |
1655 | if (p->type != V4L2_TUNER_ADC && p->type != V4L2_TUNER_RF) | |
1656 | return -EINVAL; | |
1657 | } else { | |
1658 | type = (vfd->vfl_type == VFL_TYPE_RADIO) ? | |
1659 | V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV; | |
1660 | if (type != p->type) | |
1661 | return -EINVAL; | |
1662 | } | |
4b1e2e4d HV |
1663 | return ops->vidioc_s_frequency(file, fh, p); |
1664 | } | |
1665 | ||
1666 | static int v4l_enumstd(const struct v4l2_ioctl_ops *ops, | |
1667 | struct file *file, void *fh, void *arg) | |
1668 | { | |
1669 | struct video_device *vfd = video_devdata(file); | |
1670 | struct v4l2_standard *p = arg; | |
1671 | v4l2_std_id id = vfd->tvnorms, curr_id = 0; | |
1672 | unsigned int index = p->index, i, j = 0; | |
1673 | const char *descr = ""; | |
1674 | ||
a5338190 HV |
1675 | /* Return -ENODATA if the tvnorms for the current input |
1676 | or output is 0, meaning that it doesn't support this API. */ | |
1677 | if (id == 0) | |
1678 | return -ENODATA; | |
1679 | ||
4b1e2e4d HV |
1680 | /* Return norm array in a canonical way */ |
1681 | for (i = 0; i <= index && id; i++) { | |
1682 | /* last std value in the standards array is 0, so this | |
1683 | while always ends there since (id & 0) == 0. */ | |
1684 | while ((id & standards[j].std) != standards[j].std) | |
1685 | j++; | |
1686 | curr_id = standards[j].std; | |
1687 | descr = standards[j].descr; | |
1688 | j++; | |
1689 | if (curr_id == 0) | |
1690 | break; | |
1691 | if (curr_id != V4L2_STD_PAL && | |
1692 | curr_id != V4L2_STD_SECAM && | |
1693 | curr_id != V4L2_STD_NTSC) | |
1694 | id &= ~curr_id; | |
1695 | } | |
1696 | if (i <= index) | |
1697 | return -EINVAL; | |
1698 | ||
1699 | v4l2_video_std_construct(p, curr_id, descr); | |
1700 | return 0; | |
1701 | } | |
1702 | ||
4b1e2e4d HV |
1703 | static int v4l_s_std(const struct v4l2_ioctl_ops *ops, |
1704 | struct file *file, void *fh, void *arg) | |
1705 | { | |
1706 | struct video_device *vfd = video_devdata(file); | |
314527ac | 1707 | v4l2_std_id id = *(v4l2_std_id *)arg, norm; |
4b1e2e4d | 1708 | |
314527ac | 1709 | norm = id & vfd->tvnorms; |
4b1e2e4d HV |
1710 | if (vfd->tvnorms && !norm) /* Check if std is supported */ |
1711 | return -EINVAL; | |
1712 | ||
1713 | /* Calls the specific handler */ | |
ca371575 | 1714 | return ops->vidioc_s_std(file, fh, norm); |
4b1e2e4d HV |
1715 | } |
1716 | ||
1717 | static int v4l_querystd(const struct v4l2_ioctl_ops *ops, | |
1718 | struct file *file, void *fh, void *arg) | |
1719 | { | |
1720 | struct video_device *vfd = video_devdata(file); | |
1721 | v4l2_std_id *p = arg; | |
1722 | ||
1723 | /* | |
1a2c6866 HV |
1724 | * If no signal is detected, then the driver should return |
1725 | * V4L2_STD_UNKNOWN. Otherwise it should return tvnorms with | |
1726 | * any standards that do not apply removed. | |
1727 | * | |
4b1e2e4d HV |
1728 | * This means that tuners, audio and video decoders can join |
1729 | * their efforts to improve the standards detection. | |
1730 | */ | |
1731 | *p = vfd->tvnorms; | |
1732 | return ops->vidioc_querystd(file, fh, arg); | |
1733 | } | |
1734 | ||
1735 | static int v4l_s_hw_freq_seek(const struct v4l2_ioctl_ops *ops, | |
1736 | struct file *file, void *fh, void *arg) | |
1737 | { | |
1738 | struct video_device *vfd = video_devdata(file); | |
1739 | struct v4l2_hw_freq_seek *p = arg; | |
1740 | enum v4l2_tuner_type type; | |
1741 | ||
84099a28 AP |
1742 | /* s_hw_freq_seek is not supported for SDR for now */ |
1743 | if (vfd->vfl_type == VFL_TYPE_SDR) | |
1744 | return -EINVAL; | |
1745 | ||
4b1e2e4d HV |
1746 | type = (vfd->vfl_type == VFL_TYPE_RADIO) ? |
1747 | V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV; | |
1748 | if (p->type != type) | |
1749 | return -EINVAL; | |
1750 | return ops->vidioc_s_hw_freq_seek(file, fh, p); | |
1751 | } | |
1752 | ||
737c097b HV |
1753 | static int v4l_overlay(const struct v4l2_ioctl_ops *ops, |
1754 | struct file *file, void *fh, void *arg) | |
1755 | { | |
1756 | return ops->vidioc_overlay(file, fh, *(unsigned int *)arg); | |
1757 | } | |
1758 | ||
eb3728ed HV |
1759 | static int v4l_reqbufs(const struct v4l2_ioctl_ops *ops, |
1760 | struct file *file, void *fh, void *arg) | |
1761 | { | |
1762 | struct v4l2_requestbuffers *p = arg; | |
4b20259f | 1763 | int ret = check_fmt(file, p->type); |
eb3728ed HV |
1764 | |
1765 | if (ret) | |
1766 | return ret; | |
1767 | ||
633c98e5 | 1768 | CLEAR_AFTER_FIELD(p, memory); |
eb3728ed HV |
1769 | |
1770 | return ops->vidioc_reqbufs(file, fh, p); | |
1771 | } | |
1772 | ||
1773 | static int v4l_querybuf(const struct v4l2_ioctl_ops *ops, | |
1774 | struct file *file, void *fh, void *arg) | |
1775 | { | |
1776 | struct v4l2_buffer *p = arg; | |
4b20259f | 1777 | int ret = check_fmt(file, p->type); |
eb3728ed HV |
1778 | |
1779 | return ret ? ret : ops->vidioc_querybuf(file, fh, p); | |
1780 | } | |
1781 | ||
1782 | static int v4l_qbuf(const struct v4l2_ioctl_ops *ops, | |
1783 | struct file *file, void *fh, void *arg) | |
1784 | { | |
1785 | struct v4l2_buffer *p = arg; | |
4b20259f | 1786 | int ret = check_fmt(file, p->type); |
eb3728ed HV |
1787 | |
1788 | return ret ? ret : ops->vidioc_qbuf(file, fh, p); | |
1789 | } | |
1790 | ||
1791 | static int v4l_dqbuf(const struct v4l2_ioctl_ops *ops, | |
1792 | struct file *file, void *fh, void *arg) | |
1793 | { | |
1794 | struct v4l2_buffer *p = arg; | |
4b20259f | 1795 | int ret = check_fmt(file, p->type); |
eb3728ed HV |
1796 | |
1797 | return ret ? ret : ops->vidioc_dqbuf(file, fh, p); | |
1798 | } | |
1799 | ||
1800 | static int v4l_create_bufs(const struct v4l2_ioctl_ops *ops, | |
1801 | struct file *file, void *fh, void *arg) | |
1802 | { | |
1803 | struct v4l2_create_buffers *create = arg; | |
4b20259f | 1804 | int ret = check_fmt(file, create->format.type); |
eb3728ed | 1805 | |
d52e2381 LP |
1806 | if (ret) |
1807 | return ret; | |
1808 | ||
5d351251 HV |
1809 | CLEAR_AFTER_FIELD(create, format); |
1810 | ||
d52e2381 LP |
1811 | v4l_sanitize_format(&create->format); |
1812 | ||
1813 | ret = ops->vidioc_create_bufs(file, fh, create); | |
1814 | ||
1815 | if (create->format.type == V4L2_BUF_TYPE_VIDEO_CAPTURE || | |
1816 | create->format.type == V4L2_BUF_TYPE_VIDEO_OUTPUT) | |
1817 | create->format.fmt.pix.priv = V4L2_PIX_FMT_PRIV_MAGIC; | |
1818 | ||
1819 | return ret; | |
eb3728ed HV |
1820 | } |
1821 | ||
1822 | static int v4l_prepare_buf(const struct v4l2_ioctl_ops *ops, | |
1823 | struct file *file, void *fh, void *arg) | |
1824 | { | |
1825 | struct v4l2_buffer *b = arg; | |
4b20259f | 1826 | int ret = check_fmt(file, b->type); |
eb3728ed HV |
1827 | |
1828 | return ret ? ret : ops->vidioc_prepare_buf(file, fh, b); | |
1829 | } | |
1830 | ||
1831 | static int v4l_g_parm(const struct v4l2_ioctl_ops *ops, | |
1832 | struct file *file, void *fh, void *arg) | |
1833 | { | |
eb3728ed HV |
1834 | struct v4l2_streamparm *p = arg; |
1835 | v4l2_std_id std; | |
4b20259f | 1836 | int ret = check_fmt(file, p->type); |
eb3728ed HV |
1837 | |
1838 | if (ret) | |
1839 | return ret; | |
1840 | if (ops->vidioc_g_parm) | |
1841 | return ops->vidioc_g_parm(file, fh, p); | |
eb3728ed HV |
1842 | if (p->type != V4L2_BUF_TYPE_VIDEO_CAPTURE && |
1843 | p->type != V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) | |
1844 | return -EINVAL; | |
1845 | p->parm.capture.readbuffers = 2; | |
ca371575 | 1846 | ret = ops->vidioc_g_std(file, fh, &std); |
eb3728ed | 1847 | if (ret == 0) |
ca371575 | 1848 | v4l2_video_std_frame_period(std, &p->parm.capture.timeperframe); |
eb3728ed HV |
1849 | return ret; |
1850 | } | |
1851 | ||
1852 | static int v4l_s_parm(const struct v4l2_ioctl_ops *ops, | |
1853 | struct file *file, void *fh, void *arg) | |
1854 | { | |
1855 | struct v4l2_streamparm *p = arg; | |
4b20259f | 1856 | int ret = check_fmt(file, p->type); |
eb3728ed HV |
1857 | |
1858 | return ret ? ret : ops->vidioc_s_parm(file, fh, p); | |
1859 | } | |
1860 | ||
efbceecd HV |
1861 | static int v4l_queryctrl(const struct v4l2_ioctl_ops *ops, |
1862 | struct file *file, void *fh, void *arg) | |
1863 | { | |
1864 | struct video_device *vfd = video_devdata(file); | |
1865 | struct v4l2_queryctrl *p = arg; | |
7a3ed2d9 HV |
1866 | struct v4l2_fh *vfh = |
1867 | test_bit(V4L2_FL_USES_V4L2_FH, &vfd->flags) ? fh : NULL; | |
efbceecd HV |
1868 | |
1869 | if (vfh && vfh->ctrl_handler) | |
1870 | return v4l2_queryctrl(vfh->ctrl_handler, p); | |
1871 | if (vfd->ctrl_handler) | |
1872 | return v4l2_queryctrl(vfd->ctrl_handler, p); | |
1873 | if (ops->vidioc_queryctrl) | |
1874 | return ops->vidioc_queryctrl(file, fh, p); | |
1875 | return -ENOTTY; | |
1876 | } | |
1877 | ||
e6bee368 HV |
1878 | static int v4l_query_ext_ctrl(const struct v4l2_ioctl_ops *ops, |
1879 | struct file *file, void *fh, void *arg) | |
1880 | { | |
1881 | struct video_device *vfd = video_devdata(file); | |
1882 | struct v4l2_query_ext_ctrl *p = arg; | |
1883 | struct v4l2_fh *vfh = | |
1884 | test_bit(V4L2_FL_USES_V4L2_FH, &vfd->flags) ? fh : NULL; | |
1885 | ||
1886 | if (vfh && vfh->ctrl_handler) | |
1887 | return v4l2_query_ext_ctrl(vfh->ctrl_handler, p); | |
1888 | if (vfd->ctrl_handler) | |
1889 | return v4l2_query_ext_ctrl(vfd->ctrl_handler, p); | |
1890 | if (ops->vidioc_query_ext_ctrl) | |
1891 | return ops->vidioc_query_ext_ctrl(file, fh, p); | |
1892 | return -ENOTTY; | |
1893 | } | |
1894 | ||
efbceecd HV |
1895 | static int v4l_querymenu(const struct v4l2_ioctl_ops *ops, |
1896 | struct file *file, void *fh, void *arg) | |
1897 | { | |
1898 | struct video_device *vfd = video_devdata(file); | |
1899 | struct v4l2_querymenu *p = arg; | |
7a3ed2d9 HV |
1900 | struct v4l2_fh *vfh = |
1901 | test_bit(V4L2_FL_USES_V4L2_FH, &vfd->flags) ? fh : NULL; | |
efbceecd HV |
1902 | |
1903 | if (vfh && vfh->ctrl_handler) | |
1904 | return v4l2_querymenu(vfh->ctrl_handler, p); | |
1905 | if (vfd->ctrl_handler) | |
1906 | return v4l2_querymenu(vfd->ctrl_handler, p); | |
1907 | if (ops->vidioc_querymenu) | |
1908 | return ops->vidioc_querymenu(file, fh, p); | |
1909 | return -ENOTTY; | |
1910 | } | |
1911 | ||
1912 | static int v4l_g_ctrl(const struct v4l2_ioctl_ops *ops, | |
1913 | struct file *file, void *fh, void *arg) | |
1914 | { | |
1915 | struct video_device *vfd = video_devdata(file); | |
1916 | struct v4l2_control *p = arg; | |
7a3ed2d9 HV |
1917 | struct v4l2_fh *vfh = |
1918 | test_bit(V4L2_FL_USES_V4L2_FH, &vfd->flags) ? fh : NULL; | |
efbceecd HV |
1919 | struct v4l2_ext_controls ctrls; |
1920 | struct v4l2_ext_control ctrl; | |
1921 | ||
1922 | if (vfh && vfh->ctrl_handler) | |
1923 | return v4l2_g_ctrl(vfh->ctrl_handler, p); | |
1924 | if (vfd->ctrl_handler) | |
1925 | return v4l2_g_ctrl(vfd->ctrl_handler, p); | |
1926 | if (ops->vidioc_g_ctrl) | |
1927 | return ops->vidioc_g_ctrl(file, fh, p); | |
1928 | if (ops->vidioc_g_ext_ctrls == NULL) | |
1929 | return -ENOTTY; | |
1930 | ||
1931 | ctrls.ctrl_class = V4L2_CTRL_ID2CLASS(p->id); | |
1932 | ctrls.count = 1; | |
1933 | ctrls.controls = &ctrl; | |
1934 | ctrl.id = p->id; | |
1935 | ctrl.value = p->value; | |
1936 | if (check_ext_ctrls(&ctrls, 1)) { | |
1937 | int ret = ops->vidioc_g_ext_ctrls(file, fh, &ctrls); | |
1938 | ||
1939 | if (ret == 0) | |
1940 | p->value = ctrl.value; | |
1941 | return ret; | |
1942 | } | |
1943 | return -EINVAL; | |
1944 | } | |
1945 | ||
1946 | static int v4l_s_ctrl(const struct v4l2_ioctl_ops *ops, | |
1947 | struct file *file, void *fh, void *arg) | |
1948 | { | |
1949 | struct video_device *vfd = video_devdata(file); | |
1950 | struct v4l2_control *p = arg; | |
7a3ed2d9 HV |
1951 | struct v4l2_fh *vfh = |
1952 | test_bit(V4L2_FL_USES_V4L2_FH, &vfd->flags) ? fh : NULL; | |
efbceecd HV |
1953 | struct v4l2_ext_controls ctrls; |
1954 | struct v4l2_ext_control ctrl; | |
1955 | ||
1956 | if (vfh && vfh->ctrl_handler) | |
1957 | return v4l2_s_ctrl(vfh, vfh->ctrl_handler, p); | |
1958 | if (vfd->ctrl_handler) | |
1959 | return v4l2_s_ctrl(NULL, vfd->ctrl_handler, p); | |
1960 | if (ops->vidioc_s_ctrl) | |
1961 | return ops->vidioc_s_ctrl(file, fh, p); | |
1962 | if (ops->vidioc_s_ext_ctrls == NULL) | |
1963 | return -ENOTTY; | |
1964 | ||
1965 | ctrls.ctrl_class = V4L2_CTRL_ID2CLASS(p->id); | |
1966 | ctrls.count = 1; | |
1967 | ctrls.controls = &ctrl; | |
1968 | ctrl.id = p->id; | |
1969 | ctrl.value = p->value; | |
1970 | if (check_ext_ctrls(&ctrls, 1)) | |
1971 | return ops->vidioc_s_ext_ctrls(file, fh, &ctrls); | |
1972 | return -EINVAL; | |
1973 | } | |
1974 | ||
1975 | static int v4l_g_ext_ctrls(const struct v4l2_ioctl_ops *ops, | |
1976 | struct file *file, void *fh, void *arg) | |
1977 | { | |
1978 | struct video_device *vfd = video_devdata(file); | |
1979 | struct v4l2_ext_controls *p = arg; | |
7a3ed2d9 HV |
1980 | struct v4l2_fh *vfh = |
1981 | test_bit(V4L2_FL_USES_V4L2_FH, &vfd->flags) ? fh : NULL; | |
efbceecd HV |
1982 | |
1983 | p->error_idx = p->count; | |
1984 | if (vfh && vfh->ctrl_handler) | |
1985 | return v4l2_g_ext_ctrls(vfh->ctrl_handler, p); | |
1986 | if (vfd->ctrl_handler) | |
1987 | return v4l2_g_ext_ctrls(vfd->ctrl_handler, p); | |
1988 | if (ops->vidioc_g_ext_ctrls == NULL) | |
1989 | return -ENOTTY; | |
1990 | return check_ext_ctrls(p, 0) ? ops->vidioc_g_ext_ctrls(file, fh, p) : | |
1991 | -EINVAL; | |
1992 | } | |
1993 | ||
1994 | static int v4l_s_ext_ctrls(const struct v4l2_ioctl_ops *ops, | |
1995 | struct file *file, void *fh, void *arg) | |
1996 | { | |
1997 | struct video_device *vfd = video_devdata(file); | |
1998 | struct v4l2_ext_controls *p = arg; | |
7a3ed2d9 HV |
1999 | struct v4l2_fh *vfh = |
2000 | test_bit(V4L2_FL_USES_V4L2_FH, &vfd->flags) ? fh : NULL; | |
efbceecd HV |
2001 | |
2002 | p->error_idx = p->count; | |
2003 | if (vfh && vfh->ctrl_handler) | |
2004 | return v4l2_s_ext_ctrls(vfh, vfh->ctrl_handler, p); | |
2005 | if (vfd->ctrl_handler) | |
2006 | return v4l2_s_ext_ctrls(NULL, vfd->ctrl_handler, p); | |
2007 | if (ops->vidioc_s_ext_ctrls == NULL) | |
2008 | return -ENOTTY; | |
2009 | return check_ext_ctrls(p, 0) ? ops->vidioc_s_ext_ctrls(file, fh, p) : | |
2010 | -EINVAL; | |
2011 | } | |
2012 | ||
2013 | static int v4l_try_ext_ctrls(const struct v4l2_ioctl_ops *ops, | |
2014 | struct file *file, void *fh, void *arg) | |
2015 | { | |
2016 | struct video_device *vfd = video_devdata(file); | |
2017 | struct v4l2_ext_controls *p = arg; | |
7a3ed2d9 HV |
2018 | struct v4l2_fh *vfh = |
2019 | test_bit(V4L2_FL_USES_V4L2_FH, &vfd->flags) ? fh : NULL; | |
efbceecd HV |
2020 | |
2021 | p->error_idx = p->count; | |
2022 | if (vfh && vfh->ctrl_handler) | |
2023 | return v4l2_try_ext_ctrls(vfh->ctrl_handler, p); | |
2024 | if (vfd->ctrl_handler) | |
2025 | return v4l2_try_ext_ctrls(vfd->ctrl_handler, p); | |
2026 | if (ops->vidioc_try_ext_ctrls == NULL) | |
2027 | return -ENOTTY; | |
2028 | return check_ext_ctrls(p, 0) ? ops->vidioc_try_ext_ctrls(file, fh, p) : | |
2029 | -EINVAL; | |
2030 | } | |
2031 | ||
d84f2d94 HV |
2032 | static int v4l_g_crop(const struct v4l2_ioctl_ops *ops, |
2033 | struct file *file, void *fh, void *arg) | |
2034 | { | |
2035 | struct v4l2_crop *p = arg; | |
2036 | struct v4l2_selection s = { | |
2037 | .type = p->type, | |
2038 | }; | |
2039 | int ret; | |
2040 | ||
2041 | if (ops->vidioc_g_crop) | |
2042 | return ops->vidioc_g_crop(file, fh, p); | |
2043 | /* simulate capture crop using selection api */ | |
2044 | ||
2045 | /* crop means compose for output devices */ | |
2046 | if (V4L2_TYPE_IS_OUTPUT(p->type)) | |
2047 | s.target = V4L2_SEL_TGT_COMPOSE_ACTIVE; | |
2048 | else | |
2049 | s.target = V4L2_SEL_TGT_CROP_ACTIVE; | |
2050 | ||
2051 | ret = ops->vidioc_g_selection(file, fh, &s); | |
2052 | ||
2053 | /* copying results to old structure on success */ | |
2054 | if (!ret) | |
2055 | p->c = s.r; | |
2056 | return ret; | |
2057 | } | |
2058 | ||
2059 | static int v4l_s_crop(const struct v4l2_ioctl_ops *ops, | |
2060 | struct file *file, void *fh, void *arg) | |
2061 | { | |
2062 | struct v4l2_crop *p = arg; | |
2063 | struct v4l2_selection s = { | |
2064 | .type = p->type, | |
2065 | .r = p->c, | |
2066 | }; | |
2067 | ||
2068 | if (ops->vidioc_s_crop) | |
2069 | return ops->vidioc_s_crop(file, fh, p); | |
2070 | /* simulate capture crop using selection api */ | |
2071 | ||
2072 | /* crop means compose for output devices */ | |
2073 | if (V4L2_TYPE_IS_OUTPUT(p->type)) | |
2074 | s.target = V4L2_SEL_TGT_COMPOSE_ACTIVE; | |
2075 | else | |
2076 | s.target = V4L2_SEL_TGT_CROP_ACTIVE; | |
2077 | ||
2078 | return ops->vidioc_s_selection(file, fh, &s); | |
2079 | } | |
2080 | ||
2081 | static int v4l_cropcap(const struct v4l2_ioctl_ops *ops, | |
2082 | struct file *file, void *fh, void *arg) | |
2083 | { | |
2084 | struct v4l2_cropcap *p = arg; | |
d84f2d94 | 2085 | |
9409945c HV |
2086 | if (ops->vidioc_g_selection) { |
2087 | struct v4l2_selection s = { .type = p->type }; | |
2088 | int ret; | |
d84f2d94 | 2089 | |
9409945c HV |
2090 | /* obtaining bounds */ |
2091 | if (V4L2_TYPE_IS_OUTPUT(p->type)) | |
2092 | s.target = V4L2_SEL_TGT_COMPOSE_BOUNDS; | |
2093 | else | |
2094 | s.target = V4L2_SEL_TGT_CROP_BOUNDS; | |
d84f2d94 | 2095 | |
9409945c HV |
2096 | ret = ops->vidioc_g_selection(file, fh, &s); |
2097 | if (ret) | |
2098 | return ret; | |
2099 | p->bounds = s.r; | |
d84f2d94 | 2100 | |
9409945c HV |
2101 | /* obtaining defrect */ |
2102 | if (V4L2_TYPE_IS_OUTPUT(p->type)) | |
2103 | s.target = V4L2_SEL_TGT_COMPOSE_DEFAULT; | |
2104 | else | |
2105 | s.target = V4L2_SEL_TGT_CROP_DEFAULT; | |
d84f2d94 | 2106 | |
9409945c HV |
2107 | ret = ops->vidioc_g_selection(file, fh, &s); |
2108 | if (ret) | |
2109 | return ret; | |
2110 | p->defrect = s.r; | |
2111 | } | |
d84f2d94 HV |
2112 | |
2113 | /* setting trivial pixelaspect */ | |
2114 | p->pixelaspect.numerator = 1; | |
2115 | p->pixelaspect.denominator = 1; | |
9409945c HV |
2116 | |
2117 | if (ops->vidioc_cropcap) | |
2118 | return ops->vidioc_cropcap(file, fh, p); | |
2119 | ||
d84f2d94 HV |
2120 | return 0; |
2121 | } | |
2122 | ||
f16f77b0 HV |
2123 | static int v4l_log_status(const struct v4l2_ioctl_ops *ops, |
2124 | struct file *file, void *fh, void *arg) | |
2125 | { | |
2126 | struct video_device *vfd = video_devdata(file); | |
2127 | int ret; | |
2128 | ||
2129 | if (vfd->v4l2_dev) | |
2130 | pr_info("%s: ================= START STATUS =================\n", | |
2131 | vfd->v4l2_dev->name); | |
2132 | ret = ops->vidioc_log_status(file, fh); | |
2133 | if (vfd->v4l2_dev) | |
2134 | pr_info("%s: ================== END STATUS ==================\n", | |
2135 | vfd->v4l2_dev->name); | |
2136 | return ret; | |
2137 | } | |
2138 | ||
2139 | static int v4l_dbg_g_register(const struct v4l2_ioctl_ops *ops, | |
2140 | struct file *file, void *fh, void *arg) | |
2141 | { | |
2142 | #ifdef CONFIG_VIDEO_ADV_DEBUG | |
2143 | struct v4l2_dbg_register *p = arg; | |
79b0c640 HV |
2144 | struct video_device *vfd = video_devdata(file); |
2145 | struct v4l2_subdev *sd; | |
2146 | int idx = 0; | |
f16f77b0 HV |
2147 | |
2148 | if (!capable(CAP_SYS_ADMIN)) | |
2149 | return -EPERM; | |
3eef2510 | 2150 | if (p->match.type == V4L2_CHIP_MATCH_SUBDEV) { |
79b0c640 HV |
2151 | if (vfd->v4l2_dev == NULL) |
2152 | return -EINVAL; | |
3eef2510 HV |
2153 | v4l2_device_for_each_subdev(sd, vfd->v4l2_dev) |
2154 | if (p->match.addr == idx++) | |
79b0c640 | 2155 | return v4l2_subdev_call(sd, core, g_register, p); |
79b0c640 HV |
2156 | return -EINVAL; |
2157 | } | |
191b79b0 HV |
2158 | if (ops->vidioc_g_register && p->match.type == V4L2_CHIP_MATCH_BRIDGE && |
2159 | (ops->vidioc_g_chip_info || p->match.addr == 0)) | |
79b0c640 HV |
2160 | return ops->vidioc_g_register(file, fh, p); |
2161 | return -EINVAL; | |
f16f77b0 HV |
2162 | #else |
2163 | return -ENOTTY; | |
2164 | #endif | |
2165 | } | |
2166 | ||
2167 | static int v4l_dbg_s_register(const struct v4l2_ioctl_ops *ops, | |
2168 | struct file *file, void *fh, void *arg) | |
2169 | { | |
2170 | #ifdef CONFIG_VIDEO_ADV_DEBUG | |
977ba3b1 | 2171 | const struct v4l2_dbg_register *p = arg; |
79b0c640 HV |
2172 | struct video_device *vfd = video_devdata(file); |
2173 | struct v4l2_subdev *sd; | |
2174 | int idx = 0; | |
f16f77b0 HV |
2175 | |
2176 | if (!capable(CAP_SYS_ADMIN)) | |
2177 | return -EPERM; | |
3eef2510 | 2178 | if (p->match.type == V4L2_CHIP_MATCH_SUBDEV) { |
79b0c640 HV |
2179 | if (vfd->v4l2_dev == NULL) |
2180 | return -EINVAL; | |
3eef2510 HV |
2181 | v4l2_device_for_each_subdev(sd, vfd->v4l2_dev) |
2182 | if (p->match.addr == idx++) | |
79b0c640 | 2183 | return v4l2_subdev_call(sd, core, s_register, p); |
79b0c640 HV |
2184 | return -EINVAL; |
2185 | } | |
191b79b0 HV |
2186 | if (ops->vidioc_s_register && p->match.type == V4L2_CHIP_MATCH_BRIDGE && |
2187 | (ops->vidioc_g_chip_info || p->match.addr == 0)) | |
79b0c640 HV |
2188 | return ops->vidioc_s_register(file, fh, p); |
2189 | return -EINVAL; | |
f16f77b0 HV |
2190 | #else |
2191 | return -ENOTTY; | |
2192 | #endif | |
2193 | } | |
2194 | ||
96b03d2a | 2195 | static int v4l_dbg_g_chip_info(const struct v4l2_ioctl_ops *ops, |
79b0c640 HV |
2196 | struct file *file, void *fh, void *arg) |
2197 | { | |
cd634f1b | 2198 | #ifdef CONFIG_VIDEO_ADV_DEBUG |
79b0c640 | 2199 | struct video_device *vfd = video_devdata(file); |
96b03d2a | 2200 | struct v4l2_dbg_chip_info *p = arg; |
79b0c640 HV |
2201 | struct v4l2_subdev *sd; |
2202 | int idx = 0; | |
2203 | ||
2204 | switch (p->match.type) { | |
2205 | case V4L2_CHIP_MATCH_BRIDGE: | |
79b0c640 HV |
2206 | if (ops->vidioc_s_register) |
2207 | p->flags |= V4L2_CHIP_FL_WRITABLE; | |
2208 | if (ops->vidioc_g_register) | |
2209 | p->flags |= V4L2_CHIP_FL_READABLE; | |
1c1d86a1 | 2210 | strlcpy(p->name, vfd->v4l2_dev->name, sizeof(p->name)); |
96b03d2a HV |
2211 | if (ops->vidioc_g_chip_info) |
2212 | return ops->vidioc_g_chip_info(file, fh, arg); | |
0f0fe4b9 HV |
2213 | if (p->match.addr) |
2214 | return -EINVAL; | |
79b0c640 HV |
2215 | return 0; |
2216 | ||
3eef2510 | 2217 | case V4L2_CHIP_MATCH_SUBDEV: |
79b0c640 HV |
2218 | if (vfd->v4l2_dev == NULL) |
2219 | break; | |
2220 | v4l2_device_for_each_subdev(sd, vfd->v4l2_dev) { | |
3eef2510 HV |
2221 | if (p->match.addr != idx++) |
2222 | continue; | |
2223 | if (sd->ops->core && sd->ops->core->s_register) | |
2224 | p->flags |= V4L2_CHIP_FL_WRITABLE; | |
2225 | if (sd->ops->core && sd->ops->core->g_register) | |
2226 | p->flags |= V4L2_CHIP_FL_READABLE; | |
2227 | strlcpy(p->name, sd->name, sizeof(p->name)); | |
2228 | return 0; | |
79b0c640 HV |
2229 | } |
2230 | break; | |
2231 | } | |
2232 | return -EINVAL; | |
cd634f1b HV |
2233 | #else |
2234 | return -ENOTTY; | |
2235 | #endif | |
79b0c640 HV |
2236 | } |
2237 | ||
458aa4a6 HV |
2238 | static int v4l_dqevent(const struct v4l2_ioctl_ops *ops, |
2239 | struct file *file, void *fh, void *arg) | |
2240 | { | |
2241 | return v4l2_event_dequeue(fh, arg, file->f_flags & O_NONBLOCK); | |
2242 | } | |
2243 | ||
2244 | static int v4l_subscribe_event(const struct v4l2_ioctl_ops *ops, | |
2245 | struct file *file, void *fh, void *arg) | |
2246 | { | |
2247 | return ops->vidioc_subscribe_event(fh, arg); | |
2248 | } | |
2249 | ||
2250 | static int v4l_unsubscribe_event(const struct v4l2_ioctl_ops *ops, | |
2251 | struct file *file, void *fh, void *arg) | |
2252 | { | |
2253 | return ops->vidioc_unsubscribe_event(fh, arg); | |
2254 | } | |
2255 | ||
2256 | static int v4l_g_sliced_vbi_cap(const struct v4l2_ioctl_ops *ops, | |
2257 | struct file *file, void *fh, void *arg) | |
2258 | { | |
2259 | struct v4l2_sliced_vbi_cap *p = arg; | |
4b20259f HV |
2260 | int ret = check_fmt(file, p->type); |
2261 | ||
2262 | if (ret) | |
2263 | return ret; | |
458aa4a6 HV |
2264 | |
2265 | /* Clear up to type, everything after type is zeroed already */ | |
2266 | memset(p, 0, offsetof(struct v4l2_sliced_vbi_cap, type)); | |
2267 | ||
2268 | return ops->vidioc_g_sliced_vbi_cap(file, fh, p); | |
2269 | } | |
2270 | ||
82b655bf HV |
2271 | static int v4l_enum_freq_bands(const struct v4l2_ioctl_ops *ops, |
2272 | struct file *file, void *fh, void *arg) | |
2273 | { | |
2274 | struct video_device *vfd = video_devdata(file); | |
2275 | struct v4l2_frequency_band *p = arg; | |
2276 | enum v4l2_tuner_type type; | |
2277 | int err; | |
2278 | ||
84099a28 AP |
2279 | if (vfd->vfl_type == VFL_TYPE_SDR) { |
2280 | if (p->type != V4L2_TUNER_ADC && p->type != V4L2_TUNER_RF) | |
2281 | return -EINVAL; | |
2282 | type = p->type; | |
2283 | } else { | |
2284 | type = (vfd->vfl_type == VFL_TYPE_RADIO) ? | |
2285 | V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV; | |
2286 | if (type != p->type) | |
2287 | return -EINVAL; | |
2288 | } | |
a7f404af HV |
2289 | if (ops->vidioc_enum_freq_bands) { |
2290 | err = ops->vidioc_enum_freq_bands(file, fh, p); | |
2291 | if (err != -ENOTTY) | |
2292 | return err; | |
2293 | } | |
73f35418 | 2294 | if (is_valid_ioctl(vfd, VIDIOC_G_TUNER)) { |
82b655bf HV |
2295 | struct v4l2_tuner t = { |
2296 | .index = p->tuner, | |
2297 | .type = type, | |
2298 | }; | |
2299 | ||
aa4d9b53 HV |
2300 | if (p->index) |
2301 | return -EINVAL; | |
82b655bf HV |
2302 | err = ops->vidioc_g_tuner(file, fh, &t); |
2303 | if (err) | |
2304 | return err; | |
2305 | p->capability = t.capability | V4L2_TUNER_CAP_FREQ_BANDS; | |
2306 | p->rangelow = t.rangelow; | |
2307 | p->rangehigh = t.rangehigh; | |
2308 | p->modulation = (type == V4L2_TUNER_RADIO) ? | |
2309 | V4L2_BAND_MODULATION_FM : V4L2_BAND_MODULATION_VSB; | |
2310 | return 0; | |
2311 | } | |
73f35418 | 2312 | if (is_valid_ioctl(vfd, VIDIOC_G_MODULATOR)) { |
82b655bf HV |
2313 | struct v4l2_modulator m = { |
2314 | .index = p->tuner, | |
2315 | }; | |
2316 | ||
2317 | if (type != V4L2_TUNER_RADIO) | |
2318 | return -EINVAL; | |
aa4d9b53 HV |
2319 | if (p->index) |
2320 | return -EINVAL; | |
82b655bf HV |
2321 | err = ops->vidioc_g_modulator(file, fh, &m); |
2322 | if (err) | |
2323 | return err; | |
2324 | p->capability = m.capability | V4L2_TUNER_CAP_FREQ_BANDS; | |
2325 | p->rangelow = m.rangelow; | |
2326 | p->rangehigh = m.rangehigh; | |
2327 | p->modulation = (type == V4L2_TUNER_RADIO) ? | |
2328 | V4L2_BAND_MODULATION_FM : V4L2_BAND_MODULATION_VSB; | |
2329 | return 0; | |
2330 | } | |
2331 | return -ENOTTY; | |
2332 | } | |
2333 | ||
4839e6c2 HV |
2334 | struct v4l2_ioctl_info { |
2335 | unsigned int ioctl; | |
27cd2aba | 2336 | u32 flags; |
4839e6c2 | 2337 | const char * const name; |
86748f35 HV |
2338 | union { |
2339 | u32 offset; | |
2340 | int (*func)(const struct v4l2_ioctl_ops *ops, | |
2341 | struct file *file, void *fh, void *p); | |
26ddcbcc | 2342 | } u; |
86748f35 | 2343 | void (*debug)(const void *arg, bool write_only); |
4839e6c2 HV |
2344 | }; |
2345 | ||
2346 | /* This control needs a priority check */ | |
2347 | #define INFO_FL_PRIO (1 << 0) | |
2348 | /* This control can be valid if the filehandle passes a control handler. */ | |
2349 | #define INFO_FL_CTRL (1 << 1) | |
86748f35 HV |
2350 | /* This is a standard ioctl, no need for special code */ |
2351 | #define INFO_FL_STD (1 << 2) | |
2352 | /* This is ioctl has its own function */ | |
2353 | #define INFO_FL_FUNC (1 << 3) | |
5a5adf6b HV |
2354 | /* Queuing ioctl */ |
2355 | #define INFO_FL_QUEUE (1 << 4) | |
27cd2aba HV |
2356 | /* Zero struct from after the field to the end */ |
2357 | #define INFO_FL_CLEAR(v4l2_struct, field) \ | |
2358 | ((offsetof(struct v4l2_struct, field) + \ | |
2359 | sizeof(((struct v4l2_struct *)0)->field)) << 16) | |
2360 | #define INFO_FL_CLEAR_MASK (_IOC_SIZEMASK << 16) | |
4839e6c2 | 2361 | |
86748f35 HV |
2362 | #define IOCTL_INFO_STD(_ioctl, _vidioc, _debug, _flags) \ |
2363 | [_IOC_NR(_ioctl)] = { \ | |
2364 | .ioctl = _ioctl, \ | |
2365 | .flags = _flags | INFO_FL_STD, \ | |
2366 | .name = #_ioctl, \ | |
26ddcbcc | 2367 | .u.offset = offsetof(struct v4l2_ioctl_ops, _vidioc), \ |
86748f35 HV |
2368 | .debug = _debug, \ |
2369 | } | |
2370 | ||
2371 | #define IOCTL_INFO_FNC(_ioctl, _func, _debug, _flags) \ | |
2372 | [_IOC_NR(_ioctl)] = { \ | |
2373 | .ioctl = _ioctl, \ | |
2374 | .flags = _flags | INFO_FL_FUNC, \ | |
2375 | .name = #_ioctl, \ | |
26ddcbcc | 2376 | .u.func = _func, \ |
86748f35 HV |
2377 | .debug = _debug, \ |
2378 | } | |
2379 | ||
4839e6c2 | 2380 | static struct v4l2_ioctl_info v4l2_ioctls[] = { |
59076122 | 2381 | IOCTL_INFO_FNC(VIDIOC_QUERYCAP, v4l_querycap, v4l_print_querycap, 0), |
be6c64e4 | 2382 | IOCTL_INFO_FNC(VIDIOC_ENUM_FMT, v4l_enum_fmt, v4l_print_fmtdesc, INFO_FL_CLEAR(v4l2_fmtdesc, type)), |
e5ce558a | 2383 | IOCTL_INFO_FNC(VIDIOC_G_FMT, v4l_g_fmt, v4l_print_format, 0), |
be6c64e4 | 2384 | IOCTL_INFO_FNC(VIDIOC_S_FMT, v4l_s_fmt, v4l_print_format, INFO_FL_PRIO), |
5a5adf6b HV |
2385 | IOCTL_INFO_FNC(VIDIOC_REQBUFS, v4l_reqbufs, v4l_print_requestbuffers, INFO_FL_PRIO | INFO_FL_QUEUE), |
2386 | IOCTL_INFO_FNC(VIDIOC_QUERYBUF, v4l_querybuf, v4l_print_buffer, INFO_FL_QUEUE | INFO_FL_CLEAR(v4l2_buffer, length)), | |
be6c64e4 HV |
2387 | IOCTL_INFO_STD(VIDIOC_G_FBUF, vidioc_g_fbuf, v4l_print_framebuffer, 0), |
2388 | IOCTL_INFO_STD(VIDIOC_S_FBUF, vidioc_s_fbuf, v4l_print_framebuffer, INFO_FL_PRIO), | |
737c097b | 2389 | IOCTL_INFO_FNC(VIDIOC_OVERLAY, v4l_overlay, v4l_print_u32, INFO_FL_PRIO), |
5a5adf6b | 2390 | IOCTL_INFO_FNC(VIDIOC_QBUF, v4l_qbuf, v4l_print_buffer, INFO_FL_QUEUE), |
b799d09a | 2391 | IOCTL_INFO_STD(VIDIOC_EXPBUF, vidioc_expbuf, v4l_print_exportbuffer, INFO_FL_QUEUE | INFO_FL_CLEAR(v4l2_exportbuffer, flags)), |
5a5adf6b HV |
2392 | IOCTL_INFO_FNC(VIDIOC_DQBUF, v4l_dqbuf, v4l_print_buffer, INFO_FL_QUEUE), |
2393 | IOCTL_INFO_FNC(VIDIOC_STREAMON, v4l_streamon, v4l_print_buftype, INFO_FL_PRIO | INFO_FL_QUEUE), | |
2394 | IOCTL_INFO_FNC(VIDIOC_STREAMOFF, v4l_streamoff, v4l_print_buftype, INFO_FL_PRIO | INFO_FL_QUEUE), | |
eb3728ed HV |
2395 | IOCTL_INFO_FNC(VIDIOC_G_PARM, v4l_g_parm, v4l_print_streamparm, INFO_FL_CLEAR(v4l2_streamparm, type)), |
2396 | IOCTL_INFO_FNC(VIDIOC_S_PARM, v4l_s_parm, v4l_print_streamparm, INFO_FL_PRIO), | |
ca371575 | 2397 | IOCTL_INFO_STD(VIDIOC_G_STD, vidioc_g_std, v4l_print_std, 0), |
4b1e2e4d HV |
2398 | IOCTL_INFO_FNC(VIDIOC_S_STD, v4l_s_std, v4l_print_std, INFO_FL_PRIO), |
2399 | IOCTL_INFO_FNC(VIDIOC_ENUMSTD, v4l_enumstd, v4l_print_standard, INFO_FL_CLEAR(v4l2_standard, index)), | |
59076122 | 2400 | IOCTL_INFO_FNC(VIDIOC_ENUMINPUT, v4l_enuminput, v4l_print_enuminput, INFO_FL_CLEAR(v4l2_input, index)), |
efbceecd HV |
2401 | IOCTL_INFO_FNC(VIDIOC_G_CTRL, v4l_g_ctrl, v4l_print_control, INFO_FL_CTRL | INFO_FL_CLEAR(v4l2_control, id)), |
2402 | IOCTL_INFO_FNC(VIDIOC_S_CTRL, v4l_s_ctrl, v4l_print_control, INFO_FL_PRIO | INFO_FL_CTRL), | |
4b1e2e4d HV |
2403 | IOCTL_INFO_FNC(VIDIOC_G_TUNER, v4l_g_tuner, v4l_print_tuner, INFO_FL_CLEAR(v4l2_tuner, index)), |
2404 | IOCTL_INFO_FNC(VIDIOC_S_TUNER, v4l_s_tuner, v4l_print_tuner, INFO_FL_PRIO), | |
59076122 HV |
2405 | IOCTL_INFO_STD(VIDIOC_G_AUDIO, vidioc_g_audio, v4l_print_audio, 0), |
2406 | IOCTL_INFO_STD(VIDIOC_S_AUDIO, vidioc_s_audio, v4l_print_audio, INFO_FL_PRIO), | |
efbceecd HV |
2407 | IOCTL_INFO_FNC(VIDIOC_QUERYCTRL, v4l_queryctrl, v4l_print_queryctrl, INFO_FL_CTRL | INFO_FL_CLEAR(v4l2_queryctrl, id)), |
2408 | IOCTL_INFO_FNC(VIDIOC_QUERYMENU, v4l_querymenu, v4l_print_querymenu, INFO_FL_CTRL | INFO_FL_CLEAR(v4l2_querymenu, index)), | |
59076122 HV |
2409 | IOCTL_INFO_STD(VIDIOC_G_INPUT, vidioc_g_input, v4l_print_u32, 0), |
2410 | IOCTL_INFO_FNC(VIDIOC_S_INPUT, v4l_s_input, v4l_print_u32, INFO_FL_PRIO), | |
f9402a94 HV |
2411 | IOCTL_INFO_STD(VIDIOC_G_EDID, vidioc_g_edid, v4l_print_edid, 0), |
2412 | IOCTL_INFO_STD(VIDIOC_S_EDID, vidioc_s_edid, v4l_print_edid, INFO_FL_PRIO), | |
59076122 HV |
2413 | IOCTL_INFO_STD(VIDIOC_G_OUTPUT, vidioc_g_output, v4l_print_u32, 0), |
2414 | IOCTL_INFO_FNC(VIDIOC_S_OUTPUT, v4l_s_output, v4l_print_u32, INFO_FL_PRIO), | |
2415 | IOCTL_INFO_FNC(VIDIOC_ENUMOUTPUT, v4l_enumoutput, v4l_print_enumoutput, INFO_FL_CLEAR(v4l2_output, index)), | |
2416 | IOCTL_INFO_STD(VIDIOC_G_AUDOUT, vidioc_g_audout, v4l_print_audioout, 0), | |
2417 | IOCTL_INFO_STD(VIDIOC_S_AUDOUT, vidioc_s_audout, v4l_print_audioout, INFO_FL_PRIO), | |
82b655bf | 2418 | IOCTL_INFO_FNC(VIDIOC_G_MODULATOR, v4l_g_modulator, v4l_print_modulator, INFO_FL_CLEAR(v4l2_modulator, index)), |
4b1e2e4d HV |
2419 | IOCTL_INFO_STD(VIDIOC_S_MODULATOR, vidioc_s_modulator, v4l_print_modulator, INFO_FL_PRIO), |
2420 | IOCTL_INFO_FNC(VIDIOC_G_FREQUENCY, v4l_g_frequency, v4l_print_frequency, INFO_FL_CLEAR(v4l2_frequency, tuner)), | |
2421 | IOCTL_INFO_FNC(VIDIOC_S_FREQUENCY, v4l_s_frequency, v4l_print_frequency, INFO_FL_PRIO), | |
d84f2d94 HV |
2422 | IOCTL_INFO_FNC(VIDIOC_CROPCAP, v4l_cropcap, v4l_print_cropcap, INFO_FL_CLEAR(v4l2_cropcap, type)), |
2423 | IOCTL_INFO_FNC(VIDIOC_G_CROP, v4l_g_crop, v4l_print_crop, INFO_FL_CLEAR(v4l2_crop, type)), | |
2424 | IOCTL_INFO_FNC(VIDIOC_S_CROP, v4l_s_crop, v4l_print_crop, INFO_FL_PRIO), | |
865c4642 HV |
2425 | IOCTL_INFO_STD(VIDIOC_G_SELECTION, vidioc_g_selection, v4l_print_selection, INFO_FL_CLEAR(v4l2_selection, r)), |
2426 | IOCTL_INFO_STD(VIDIOC_S_SELECTION, vidioc_s_selection, v4l_print_selection, INFO_FL_PRIO | INFO_FL_CLEAR(v4l2_selection, r)), | |
d806f2df HV |
2427 | IOCTL_INFO_STD(VIDIOC_G_JPEGCOMP, vidioc_g_jpegcomp, v4l_print_jpegcompression, 0), |
2428 | IOCTL_INFO_STD(VIDIOC_S_JPEGCOMP, vidioc_s_jpegcomp, v4l_print_jpegcompression, INFO_FL_PRIO), | |
4b1e2e4d | 2429 | IOCTL_INFO_FNC(VIDIOC_QUERYSTD, v4l_querystd, v4l_print_std, 0), |
be6c64e4 | 2430 | IOCTL_INFO_FNC(VIDIOC_TRY_FMT, v4l_try_fmt, v4l_print_format, 0), |
59076122 HV |
2431 | IOCTL_INFO_STD(VIDIOC_ENUMAUDIO, vidioc_enumaudio, v4l_print_audio, INFO_FL_CLEAR(v4l2_audio, index)), |
2432 | IOCTL_INFO_STD(VIDIOC_ENUMAUDOUT, vidioc_enumaudout, v4l_print_audioout, INFO_FL_CLEAR(v4l2_audioout, index)), | |
d0547cba HV |
2433 | IOCTL_INFO_FNC(VIDIOC_G_PRIORITY, v4l_g_priority, v4l_print_u32, 0), |
2434 | IOCTL_INFO_FNC(VIDIOC_S_PRIORITY, v4l_s_priority, v4l_print_u32, INFO_FL_PRIO), | |
458aa4a6 | 2435 | 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 | 2436 | IOCTL_INFO_FNC(VIDIOC_LOG_STATUS, v4l_log_status, v4l_print_newline, 0), |
efbceecd HV |
2437 | IOCTL_INFO_FNC(VIDIOC_G_EXT_CTRLS, v4l_g_ext_ctrls, v4l_print_ext_controls, INFO_FL_CTRL), |
2438 | IOCTL_INFO_FNC(VIDIOC_S_EXT_CTRLS, v4l_s_ext_ctrls, v4l_print_ext_controls, INFO_FL_PRIO | INFO_FL_CTRL), | |
9bc31633 | 2439 | IOCTL_INFO_FNC(VIDIOC_TRY_EXT_CTRLS, v4l_try_ext_ctrls, v4l_print_ext_controls, INFO_FL_CTRL), |
458aa4a6 HV |
2440 | IOCTL_INFO_STD(VIDIOC_ENUM_FRAMESIZES, vidioc_enum_framesizes, v4l_print_frmsizeenum, INFO_FL_CLEAR(v4l2_frmsizeenum, pixel_format)), |
2441 | IOCTL_INFO_STD(VIDIOC_ENUM_FRAMEINTERVALS, vidioc_enum_frameintervals, v4l_print_frmivalenum, INFO_FL_CLEAR(v4l2_frmivalenum, height)), | |
d806f2df HV |
2442 | IOCTL_INFO_STD(VIDIOC_G_ENC_INDEX, vidioc_g_enc_index, v4l_print_enc_idx, 0), |
2443 | IOCTL_INFO_STD(VIDIOC_ENCODER_CMD, vidioc_encoder_cmd, v4l_print_encoder_cmd, INFO_FL_PRIO | INFO_FL_CLEAR(v4l2_encoder_cmd, flags)), | |
2444 | IOCTL_INFO_STD(VIDIOC_TRY_ENCODER_CMD, vidioc_try_encoder_cmd, v4l_print_encoder_cmd, INFO_FL_CLEAR(v4l2_encoder_cmd, flags)), | |
2445 | IOCTL_INFO_STD(VIDIOC_DECODER_CMD, vidioc_decoder_cmd, v4l_print_decoder_cmd, INFO_FL_PRIO), | |
2446 | IOCTL_INFO_STD(VIDIOC_TRY_DECODER_CMD, vidioc_try_decoder_cmd, v4l_print_decoder_cmd, 0), | |
f16f77b0 HV |
2447 | IOCTL_INFO_FNC(VIDIOC_DBG_S_REGISTER, v4l_dbg_s_register, v4l_print_dbg_register, 0), |
2448 | IOCTL_INFO_FNC(VIDIOC_DBG_G_REGISTER, v4l_dbg_g_register, v4l_print_dbg_register, 0), | |
4b1e2e4d | 2449 | IOCTL_INFO_FNC(VIDIOC_S_HW_FREQ_SEEK, v4l_s_hw_freq_seek, v4l_print_hw_freq_seek, INFO_FL_PRIO), |
efc626b0 HV |
2450 | IOCTL_INFO_STD(VIDIOC_S_DV_TIMINGS, vidioc_s_dv_timings, v4l_print_dv_timings, INFO_FL_PRIO), |
2451 | IOCTL_INFO_STD(VIDIOC_G_DV_TIMINGS, vidioc_g_dv_timings, v4l_print_dv_timings, 0), | |
458aa4a6 HV |
2452 | IOCTL_INFO_FNC(VIDIOC_DQEVENT, v4l_dqevent, v4l_print_event, 0), |
2453 | IOCTL_INFO_FNC(VIDIOC_SUBSCRIBE_EVENT, v4l_subscribe_event, v4l_print_event_subscription, 0), | |
2454 | IOCTL_INFO_FNC(VIDIOC_UNSUBSCRIBE_EVENT, v4l_unsubscribe_event, v4l_print_event_subscription, 0), | |
5a5adf6b HV |
2455 | IOCTL_INFO_FNC(VIDIOC_CREATE_BUFS, v4l_create_bufs, v4l_print_create_buffers, INFO_FL_PRIO | INFO_FL_QUEUE), |
2456 | IOCTL_INFO_FNC(VIDIOC_PREPARE_BUF, v4l_prepare_buf, v4l_print_buffer, INFO_FL_QUEUE), | |
efc626b0 HV |
2457 | IOCTL_INFO_STD(VIDIOC_ENUM_DV_TIMINGS, vidioc_enum_dv_timings, v4l_print_enum_dv_timings, 0), |
2458 | IOCTL_INFO_STD(VIDIOC_QUERY_DV_TIMINGS, vidioc_query_dv_timings, v4l_print_dv_timings, 0), | |
a1acb8f9 | 2459 | 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 | 2460 | IOCTL_INFO_FNC(VIDIOC_ENUM_FREQ_BANDS, v4l_enum_freq_bands, v4l_print_freq_band, 0), |
96b03d2a | 2461 | 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 | 2462 | 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 |
2463 | }; |
2464 | #define V4L2_IOCTLS ARRAY_SIZE(v4l2_ioctls) | |
2465 | ||
2466 | bool v4l2_is_known_ioctl(unsigned int cmd) | |
2467 | { | |
2468 | if (_IOC_NR(cmd) >= V4L2_IOCTLS) | |
2469 | return false; | |
2470 | return v4l2_ioctls[_IOC_NR(cmd)].ioctl == cmd; | |
2471 | } | |
2472 | ||
5a5adf6b HV |
2473 | struct mutex *v4l2_ioctl_get_lock(struct video_device *vdev, unsigned cmd) |
2474 | { | |
2475 | if (_IOC_NR(cmd) >= V4L2_IOCTLS) | |
2476 | return vdev->lock; | |
2477 | if (test_bit(_IOC_NR(cmd), vdev->disable_locking)) | |
2478 | return NULL; | |
2479 | if (vdev->queue && vdev->queue->lock && | |
2480 | (v4l2_ioctls[_IOC_NR(cmd)].flags & INFO_FL_QUEUE)) | |
2481 | return vdev->queue->lock; | |
2482 | return vdev->lock; | |
2483 | } | |
2484 | ||
4839e6c2 HV |
2485 | /* Common ioctl debug function. This function can be used by |
2486 | external ioctl messages as well as internal V4L ioctl */ | |
4a085168 | 2487 | void v4l_printk_ioctl(const char *prefix, unsigned int cmd) |
4839e6c2 | 2488 | { |
86748f35 | 2489 | const char *dir, *type; |
4839e6c2 | 2490 | |
4a085168 HV |
2491 | if (prefix) |
2492 | printk(KERN_DEBUG "%s: ", prefix); | |
2493 | ||
4839e6c2 HV |
2494 | switch (_IOC_TYPE(cmd)) { |
2495 | case 'd': | |
2496 | type = "v4l2_int"; | |
2497 | break; | |
2498 | case 'V': | |
2499 | if (_IOC_NR(cmd) >= V4L2_IOCTLS) { | |
2500 | type = "v4l2"; | |
2501 | break; | |
2502 | } | |
86748f35 | 2503 | pr_cont("%s", v4l2_ioctls[_IOC_NR(cmd)].name); |
4839e6c2 HV |
2504 | return; |
2505 | default: | |
2506 | type = "unknown"; | |
86748f35 | 2507 | break; |
4839e6c2 HV |
2508 | } |
2509 | ||
2510 | switch (_IOC_DIR(cmd)) { | |
2511 | case _IOC_NONE: dir = "--"; break; | |
2512 | case _IOC_READ: dir = "r-"; break; | |
2513 | case _IOC_WRITE: dir = "-w"; break; | |
2514 | case _IOC_READ | _IOC_WRITE: dir = "rw"; break; | |
2515 | default: dir = "*ERR*"; break; | |
2516 | } | |
86748f35 | 2517 | pr_cont("%s ioctl '%c', dir=%s, #%d (0x%08x)", |
4839e6c2 HV |
2518 | type, _IOC_TYPE(cmd), dir, _IOC_NR(cmd), cmd); |
2519 | } | |
2520 | EXPORT_SYMBOL(v4l_printk_ioctl); | |
2521 | ||
069b7479 | 2522 | static long __video_do_ioctl(struct file *file, |
35ea11ff HV |
2523 | unsigned int cmd, void *arg) |
2524 | { | |
2525 | struct video_device *vfd = video_devdata(file); | |
a399810c | 2526 | const struct v4l2_ioctl_ops *ops = vfd->ioctl_ops; |
86748f35 HV |
2527 | bool write_only = false; |
2528 | struct v4l2_ioctl_info default_info; | |
2529 | const struct v4l2_ioctl_info *info; | |
d5fbf32f | 2530 | void *fh = file->private_data; |
99cd47bc | 2531 | struct v4l2_fh *vfh = NULL; |
17028cdb | 2532 | int dev_debug = vfd->dev_debug; |
9190d191 | 2533 | long ret = -ENOTTY; |
35ea11ff | 2534 | |
6a717883 | 2535 | if (ops == NULL) { |
4a085168 HV |
2536 | pr_warn("%s: has no ioctl_ops.\n", |
2537 | video_device_node_name(vfd)); | |
9190d191 | 2538 | return ret; |
6a717883 HV |
2539 | } |
2540 | ||
b7284bb0 | 2541 | if (test_bit(V4L2_FL_USES_V4L2_FH, &vfd->flags)) |
99cd47bc HV |
2542 | vfh = file->private_data; |
2543 | ||
48ea0be0 | 2544 | if (v4l2_is_known_ioctl(cmd)) { |
86748f35 | 2545 | info = &v4l2_ioctls[_IOC_NR(cmd)]; |
48ea0be0 | 2546 | |
2e5e435f | 2547 | if (!test_bit(_IOC_NR(cmd), vfd->valid_ioctls) && |
48ea0be0 | 2548 | !((info->flags & INFO_FL_CTRL) && vfh && vfh->ctrl_handler)) |
86748f35 | 2549 | goto done; |
4b902fec | 2550 | |
b7284bb0 | 2551 | if (vfh && (info->flags & INFO_FL_PRIO)) { |
4b902fec HV |
2552 | ret = v4l2_prio_check(vfd->prio, vfh->prio); |
2553 | if (ret) | |
86748f35 | 2554 | goto done; |
4b902fec | 2555 | } |
86748f35 HV |
2556 | } else { |
2557 | default_info.ioctl = cmd; | |
2558 | default_info.flags = 0; | |
f18d8e07 | 2559 | default_info.debug = v4l_print_default; |
86748f35 | 2560 | info = &default_info; |
48ea0be0 HV |
2561 | } |
2562 | ||
86748f35 | 2563 | write_only = _IOC_DIR(cmd) == _IOC_WRITE; |
86748f35 HV |
2564 | if (info->flags & INFO_FL_STD) { |
2565 | typedef int (*vidioc_op)(struct file *file, void *fh, void *p); | |
2566 | const void *p = vfd->ioctl_ops; | |
26ddcbcc | 2567 | const vidioc_op *vidioc = p + info->u.offset; |
86748f35 HV |
2568 | |
2569 | ret = (*vidioc)(file, fh, arg); | |
86748f35 | 2570 | } else if (info->flags & INFO_FL_FUNC) { |
26ddcbcc | 2571 | ret = info->u.func(ops, file, fh, arg); |
f18d8e07 HV |
2572 | } else if (!ops->vidioc_default) { |
2573 | ret = -ENOTTY; | |
2574 | } else { | |
2575 | ret = ops->vidioc_default(file, fh, | |
b7284bb0 | 2576 | vfh ? v4l2_prio_check(vfd->prio, vfh->prio) >= 0 : 0, |
f18d8e07 | 2577 | cmd, arg); |
48ea0be0 | 2578 | } |
99cd47bc | 2579 | |
86748f35 | 2580 | done: |
17028cdb HV |
2581 | if (dev_debug & (V4L2_DEV_DEBUG_IOCTL | V4L2_DEV_DEBUG_IOCTL_ARG)) { |
2582 | if (!(dev_debug & V4L2_DEV_DEBUG_STREAMING) && | |
2583 | (cmd == VIDIOC_QBUF || cmd == VIDIOC_DQBUF)) | |
2584 | return ret; | |
2585 | ||
4a085168 | 2586 | v4l_printk_ioctl(video_device_node_name(vfd), cmd); |
86748f35 | 2587 | if (ret < 0) |
505d04bd | 2588 | pr_cont(": error %ld", ret); |
17028cdb | 2589 | if (!(dev_debug & V4L2_DEV_DEBUG_IOCTL_ARG)) |
86748f35 | 2590 | pr_cont("\n"); |
86748f35 HV |
2591 | else if (_IOC_DIR(cmd) == _IOC_NONE) |
2592 | info->debug(arg, write_only); | |
2593 | else { | |
2594 | pr_cont(": "); | |
2595 | info->debug(arg, write_only); | |
35ea11ff HV |
2596 | } |
2597 | } | |
2598 | ||
2599 | return ret; | |
2600 | } | |
2601 | ||
d14e6d76 | 2602 | static int check_array_args(unsigned int cmd, void *parg, size_t *array_size, |
ba2d35c1 | 2603 | void __user **user_ptr, void ***kernel_ptr) |
d14e6d76 PO |
2604 | { |
2605 | int ret = 0; | |
2606 | ||
2607 | switch (cmd) { | |
96b1a702 | 2608 | case VIDIOC_PREPARE_BUF: |
d14e6d76 PO |
2609 | case VIDIOC_QUERYBUF: |
2610 | case VIDIOC_QBUF: | |
2611 | case VIDIOC_DQBUF: { | |
2612 | struct v4l2_buffer *buf = parg; | |
2613 | ||
2614 | if (V4L2_TYPE_IS_MULTIPLANAR(buf->type) && buf->length > 0) { | |
2615 | if (buf->length > VIDEO_MAX_PLANES) { | |
2616 | ret = -EINVAL; | |
2617 | break; | |
2618 | } | |
2619 | *user_ptr = (void __user *)buf->m.planes; | |
ba2d35c1 | 2620 | *kernel_ptr = (void **)&buf->m.planes; |
d14e6d76 PO |
2621 | *array_size = sizeof(struct v4l2_plane) * buf->length; |
2622 | ret = 1; | |
2623 | } | |
2624 | break; | |
2625 | } | |
2626 | ||
dd519bb3 HV |
2627 | case VIDIOC_G_EDID: |
2628 | case VIDIOC_S_EDID: { | |
2629 | struct v4l2_edid *edid = parg; | |
ed45ce2c HV |
2630 | |
2631 | if (edid->blocks) { | |
1b8b10cc HV |
2632 | if (edid->blocks > 256) { |
2633 | ret = -EINVAL; | |
2634 | break; | |
2635 | } | |
ed45ce2c | 2636 | *user_ptr = (void __user *)edid->edid; |
ba2d35c1 | 2637 | *kernel_ptr = (void **)&edid->edid; |
ed45ce2c HV |
2638 | *array_size = edid->blocks * 128; |
2639 | ret = 1; | |
2640 | } | |
2641 | break; | |
2642 | } | |
2643 | ||
d14e6d76 PO |
2644 | case VIDIOC_S_EXT_CTRLS: |
2645 | case VIDIOC_G_EXT_CTRLS: | |
2646 | case VIDIOC_TRY_EXT_CTRLS: { | |
2647 | struct v4l2_ext_controls *ctrls = parg; | |
2648 | ||
2649 | if (ctrls->count != 0) { | |
6c06108b DC |
2650 | if (ctrls->count > V4L2_CID_MAX_CTRLS) { |
2651 | ret = -EINVAL; | |
2652 | break; | |
2653 | } | |
d14e6d76 | 2654 | *user_ptr = (void __user *)ctrls->controls; |
ba2d35c1 | 2655 | *kernel_ptr = (void **)&ctrls->controls; |
d14e6d76 PO |
2656 | *array_size = sizeof(struct v4l2_ext_control) |
2657 | * ctrls->count; | |
2658 | ret = 1; | |
2659 | } | |
2660 | break; | |
2661 | } | |
2662 | } | |
2663 | ||
2664 | return ret; | |
2665 | } | |
2666 | ||
fc0a8079 LP |
2667 | long |
2668 | video_usercopy(struct file *file, unsigned int cmd, unsigned long arg, | |
2669 | v4l2_kioctl func) | |
35ea11ff HV |
2670 | { |
2671 | char sbuf[128]; | |
2672 | void *mbuf = NULL; | |
1d94aa36 | 2673 | void *parg = (void *)arg; |
069b7479 | 2674 | long err = -EINVAL; |
d14e6d76 PO |
2675 | bool has_array_args; |
2676 | size_t array_size = 0; | |
35ea11ff | 2677 | void __user *user_ptr = NULL; |
d14e6d76 | 2678 | void **kernel_ptr = NULL; |
35ea11ff | 2679 | |
35ea11ff | 2680 | /* Copy arguments into temp kernel buffer */ |
337f9d20 | 2681 | if (_IOC_DIR(cmd) != _IOC_NONE) { |
35ea11ff HV |
2682 | if (_IOC_SIZE(cmd) <= sizeof(sbuf)) { |
2683 | parg = sbuf; | |
2684 | } else { | |
2685 | /* too big to allocate from stack */ | |
2686 | mbuf = kmalloc(_IOC_SIZE(cmd), GFP_KERNEL); | |
2687 | if (NULL == mbuf) | |
2688 | return -ENOMEM; | |
2689 | parg = mbuf; | |
2690 | } | |
2691 | ||
2692 | err = -EFAULT; | |
19c96e4b | 2693 | if (_IOC_DIR(cmd) & _IOC_WRITE) { |
27cd2aba HV |
2694 | unsigned int n = _IOC_SIZE(cmd); |
2695 | ||
2696 | /* | |
2697 | * In some cases, only a few fields are used as input, | |
2698 | * i.e. when the app sets "index" and then the driver | |
2699 | * fills in the rest of the structure for the thing | |
2700 | * with that index. We only need to copy up the first | |
2701 | * non-input field. | |
2702 | */ | |
2703 | if (v4l2_is_known_ioctl(cmd)) { | |
2704 | u32 flags = v4l2_ioctls[_IOC_NR(cmd)].flags; | |
2705 | if (flags & INFO_FL_CLEAR_MASK) | |
2706 | n = (flags & INFO_FL_CLEAR_MASK) >> 16; | |
2707 | } | |
19c96e4b TP |
2708 | |
2709 | if (copy_from_user(parg, (void __user *)arg, n)) | |
35ea11ff | 2710 | goto out; |
19c96e4b TP |
2711 | |
2712 | /* zero out anything we don't copy from userspace */ | |
2713 | if (n < _IOC_SIZE(cmd)) | |
2714 | memset((u8 *)parg + n, 0, _IOC_SIZE(cmd) - n); | |
337f9d20 TP |
2715 | } else { |
2716 | /* read-only ioctl */ | |
2717 | memset(parg, 0, _IOC_SIZE(cmd)); | |
19c96e4b | 2718 | } |
35ea11ff HV |
2719 | } |
2720 | ||
d14e6d76 PO |
2721 | err = check_array_args(cmd, parg, &array_size, &user_ptr, &kernel_ptr); |
2722 | if (err < 0) | |
2723 | goto out; | |
2724 | has_array_args = err; | |
35ea11ff | 2725 | |
d14e6d76 PO |
2726 | if (has_array_args) { |
2727 | /* | |
2728 | * When adding new types of array args, make sure that the | |
2729 | * parent argument to ioctl (which contains the pointer to the | |
2730 | * array) fits into sbuf (so that mbuf will still remain | |
2731 | * unused up to here). | |
2732 | */ | |
2733 | mbuf = kmalloc(array_size, GFP_KERNEL); | |
2734 | err = -ENOMEM; | |
2735 | if (NULL == mbuf) | |
2736 | goto out_array_args; | |
2737 | err = -EFAULT; | |
2738 | if (copy_from_user(mbuf, user_ptr, array_size)) | |
2739 | goto out_array_args; | |
2740 | *kernel_ptr = mbuf; | |
35ea11ff HV |
2741 | } |
2742 | ||
2743 | /* Handles IOCTL */ | |
fc0a8079 | 2744 | err = func(file, cmd, parg); |
35ea11ff | 2745 | if (err == -ENOIOCTLCMD) |
02bbb814 | 2746 | err = -ENOTTY; |
aa32f4c0 HV |
2747 | if (err == 0) { |
2748 | if (cmd == VIDIOC_DQBUF) | |
2749 | trace_v4l2_dqbuf(video_devdata(file)->minor, parg); | |
2750 | else if (cmd == VIDIOC_QBUF) | |
2751 | trace_v4l2_qbuf(video_devdata(file)->minor, parg); | |
2752 | } | |
35ea11ff | 2753 | |
d14e6d76 | 2754 | if (has_array_args) { |
ba2d35c1 | 2755 | *kernel_ptr = (void __force *)user_ptr; |
d14e6d76 | 2756 | if (copy_to_user(user_ptr, mbuf, array_size)) |
35ea11ff | 2757 | err = -EFAULT; |
d14e6d76 | 2758 | goto out_array_args; |
35ea11ff | 2759 | } |
5d7758ee HV |
2760 | /* VIDIOC_QUERY_DV_TIMINGS can return an error, but still have valid |
2761 | results that must be returned. */ | |
2762 | if (err < 0 && cmd != VIDIOC_QUERY_DV_TIMINGS) | |
35ea11ff HV |
2763 | goto out; |
2764 | ||
d14e6d76 | 2765 | out_array_args: |
35ea11ff HV |
2766 | /* Copy results into user buffer */ |
2767 | switch (_IOC_DIR(cmd)) { | |
2768 | case _IOC_READ: | |
2769 | case (_IOC_WRITE | _IOC_READ): | |
2770 | if (copy_to_user((void __user *)arg, parg, _IOC_SIZE(cmd))) | |
2771 | err = -EFAULT; | |
2772 | break; | |
2773 | } | |
2774 | ||
2775 | out: | |
2776 | kfree(mbuf); | |
2777 | return err; | |
2778 | } | |
fc0a8079 LP |
2779 | EXPORT_SYMBOL(video_usercopy); |
2780 | ||
2781 | long video_ioctl2(struct file *file, | |
2782 | unsigned int cmd, unsigned long arg) | |
2783 | { | |
2784 | return video_usercopy(file, cmd, arg, __video_do_ioctl); | |
2785 | } | |
8a522c91 | 2786 | EXPORT_SYMBOL(video_ioctl2); |