]>
Commit | Line | Data |
---|---|---|
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> |
80b36e0f | 29 | #include <media/v4l2-chip-ident.h> |
35ea11ff HV |
30 | |
31 | #define dbgarg(cmd, fmt, arg...) \ | |
32 | do { \ | |
33 | if (vfd->debug & V4L2_DEBUG_IOCTL_ARG) { \ | |
34 | printk(KERN_DEBUG "%s: ", vfd->name); \ | |
35 | v4l_printk_ioctl(cmd); \ | |
36 | printk(" " fmt, ## arg); \ | |
37 | } \ | |
38 | } while (0) | |
39 | ||
40 | #define dbgarg2(fmt, arg...) \ | |
41 | do { \ | |
42 | if (vfd->debug & V4L2_DEBUG_IOCTL_ARG) \ | |
43 | printk(KERN_DEBUG "%s: " fmt, vfd->name, ## arg);\ | |
44 | } while (0) | |
45 | ||
d33fbcbb MCC |
46 | #define dbgarg3(fmt, arg...) \ |
47 | do { \ | |
48 | if (vfd->debug & V4L2_DEBUG_IOCTL_ARG) \ | |
49 | printk(KERN_CONT "%s: " fmt, vfd->name, ## arg);\ | |
50 | } while (0) | |
51 | ||
25985edc | 52 | /* Zero out the end of the struct pointed to by p. Everything after, but |
7ecc0cf9 TP |
53 | * not including, the specified field is cleared. */ |
54 | #define CLEAR_AFTER_FIELD(p, field) \ | |
55 | memset((u8 *)(p) + offsetof(typeof(*(p)), field) + sizeof((p)->field), \ | |
56 | 0, sizeof(*(p)) - offsetof(typeof(*(p)), field) - sizeof((p)->field)) | |
57 | ||
93d5a30b | 58 | #define have_fmt_ops(foo) ( \ |
a5f2db53 MCC |
59 | ops->vidioc_##foo##_fmt_vid_cap || \ |
60 | ops->vidioc_##foo##_fmt_vid_out || \ | |
61 | ops->vidioc_##foo##_fmt_vid_cap_mplane || \ | |
62 | ops->vidioc_##foo##_fmt_vid_out_mplane || \ | |
63 | ops->vidioc_##foo##_fmt_vid_overlay || \ | |
93d5a30b HV |
64 | ops->vidioc_##foo##_fmt_vbi_cap || \ |
65 | ops->vidioc_##foo##_fmt_vid_out_overlay || \ | |
66 | ops->vidioc_##foo##_fmt_vbi_out || \ | |
67 | ops->vidioc_##foo##_fmt_sliced_vbi_cap || \ | |
68 | ops->vidioc_##foo##_fmt_sliced_vbi_out || \ | |
69 | ops->vidioc_##foo##_fmt_type_private) | |
a5f2db53 | 70 | |
35ea11ff HV |
71 | struct std_descr { |
72 | v4l2_std_id std; | |
73 | const char *descr; | |
74 | }; | |
75 | ||
76 | static const struct std_descr standards[] = { | |
77 | { V4L2_STD_NTSC, "NTSC" }, | |
78 | { V4L2_STD_NTSC_M, "NTSC-M" }, | |
79 | { V4L2_STD_NTSC_M_JP, "NTSC-M-JP" }, | |
80 | { V4L2_STD_NTSC_M_KR, "NTSC-M-KR" }, | |
81 | { V4L2_STD_NTSC_443, "NTSC-443" }, | |
82 | { V4L2_STD_PAL, "PAL" }, | |
83 | { V4L2_STD_PAL_BG, "PAL-BG" }, | |
84 | { V4L2_STD_PAL_B, "PAL-B" }, | |
85 | { V4L2_STD_PAL_B1, "PAL-B1" }, | |
86 | { V4L2_STD_PAL_G, "PAL-G" }, | |
87 | { V4L2_STD_PAL_H, "PAL-H" }, | |
88 | { V4L2_STD_PAL_I, "PAL-I" }, | |
89 | { V4L2_STD_PAL_DK, "PAL-DK" }, | |
90 | { V4L2_STD_PAL_D, "PAL-D" }, | |
91 | { V4L2_STD_PAL_D1, "PAL-D1" }, | |
92 | { V4L2_STD_PAL_K, "PAL-K" }, | |
93 | { V4L2_STD_PAL_M, "PAL-M" }, | |
94 | { V4L2_STD_PAL_N, "PAL-N" }, | |
95 | { V4L2_STD_PAL_Nc, "PAL-Nc" }, | |
96 | { V4L2_STD_PAL_60, "PAL-60" }, | |
97 | { V4L2_STD_SECAM, "SECAM" }, | |
98 | { V4L2_STD_SECAM_B, "SECAM-B" }, | |
99 | { V4L2_STD_SECAM_G, "SECAM-G" }, | |
100 | { V4L2_STD_SECAM_H, "SECAM-H" }, | |
101 | { V4L2_STD_SECAM_DK, "SECAM-DK" }, | |
102 | { V4L2_STD_SECAM_D, "SECAM-D" }, | |
103 | { V4L2_STD_SECAM_K, "SECAM-K" }, | |
104 | { V4L2_STD_SECAM_K1, "SECAM-K1" }, | |
105 | { V4L2_STD_SECAM_L, "SECAM-L" }, | |
106 | { V4L2_STD_SECAM_LC, "SECAM-Lc" }, | |
107 | { 0, "Unknown" } | |
108 | }; | |
109 | ||
110 | /* video4linux standard ID conversion to standard name | |
111 | */ | |
112 | const char *v4l2_norm_to_name(v4l2_std_id id) | |
113 | { | |
114 | u32 myid = id; | |
115 | int i; | |
116 | ||
117 | /* HACK: ppc32 architecture doesn't have __ucmpdi2 function to handle | |
118 | 64 bit comparations. So, on that architecture, with some gcc | |
119 | variants, compilation fails. Currently, the max value is 30bit wide. | |
120 | */ | |
121 | BUG_ON(myid != id); | |
122 | ||
123 | for (i = 0; standards[i].std; i++) | |
124 | if (myid == standards[i].std) | |
125 | break; | |
126 | return standards[i].descr; | |
127 | } | |
128 | EXPORT_SYMBOL(v4l2_norm_to_name); | |
129 | ||
51f0b8d5 TP |
130 | /* Returns frame period for the given standard */ |
131 | void v4l2_video_std_frame_period(int id, struct v4l2_fract *frameperiod) | |
132 | { | |
133 | if (id & V4L2_STD_525_60) { | |
134 | frameperiod->numerator = 1001; | |
135 | frameperiod->denominator = 30000; | |
136 | } else { | |
137 | frameperiod->numerator = 1; | |
138 | frameperiod->denominator = 25; | |
139 | } | |
140 | } | |
141 | EXPORT_SYMBOL(v4l2_video_std_frame_period); | |
142 | ||
35ea11ff HV |
143 | /* Fill in the fields of a v4l2_standard structure according to the |
144 | 'id' and 'transmission' parameters. Returns negative on error. */ | |
145 | int v4l2_video_std_construct(struct v4l2_standard *vs, | |
146 | int id, const char *name) | |
147 | { | |
51f0b8d5 TP |
148 | vs->id = id; |
149 | v4l2_video_std_frame_period(id, &vs->frameperiod); | |
150 | vs->framelines = (id & V4L2_STD_525_60) ? 525 : 625; | |
35ea11ff HV |
151 | strlcpy(vs->name, name, sizeof(vs->name)); |
152 | return 0; | |
153 | } | |
154 | EXPORT_SYMBOL(v4l2_video_std_construct); | |
155 | ||
156 | /* ----------------------------------------------------------------- */ | |
157 | /* some arrays for pretty-printing debug messages of enum types */ | |
158 | ||
159 | const char *v4l2_field_names[] = { | |
160 | [V4L2_FIELD_ANY] = "any", | |
161 | [V4L2_FIELD_NONE] = "none", | |
162 | [V4L2_FIELD_TOP] = "top", | |
163 | [V4L2_FIELD_BOTTOM] = "bottom", | |
164 | [V4L2_FIELD_INTERLACED] = "interlaced", | |
165 | [V4L2_FIELD_SEQ_TB] = "seq-tb", | |
166 | [V4L2_FIELD_SEQ_BT] = "seq-bt", | |
167 | [V4L2_FIELD_ALTERNATE] = "alternate", | |
168 | [V4L2_FIELD_INTERLACED_TB] = "interlaced-tb", | |
169 | [V4L2_FIELD_INTERLACED_BT] = "interlaced-bt", | |
170 | }; | |
171 | EXPORT_SYMBOL(v4l2_field_names); | |
172 | ||
173 | const char *v4l2_type_names[] = { | |
174 | [V4L2_BUF_TYPE_VIDEO_CAPTURE] = "vid-cap", | |
175 | [V4L2_BUF_TYPE_VIDEO_OVERLAY] = "vid-overlay", | |
176 | [V4L2_BUF_TYPE_VIDEO_OUTPUT] = "vid-out", | |
177 | [V4L2_BUF_TYPE_VBI_CAPTURE] = "vbi-cap", | |
178 | [V4L2_BUF_TYPE_VBI_OUTPUT] = "vbi-out", | |
179 | [V4L2_BUF_TYPE_SLICED_VBI_CAPTURE] = "sliced-vbi-cap", | |
180 | [V4L2_BUF_TYPE_SLICED_VBI_OUTPUT] = "sliced-vbi-out", | |
181 | [V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY] = "vid-out-overlay", | |
f8f3914c PO |
182 | [V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE] = "vid-cap-mplane", |
183 | [V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE] = "vid-out-mplane", | |
35ea11ff HV |
184 | }; |
185 | EXPORT_SYMBOL(v4l2_type_names); | |
186 | ||
187 | static const char *v4l2_memory_names[] = { | |
188 | [V4L2_MEMORY_MMAP] = "mmap", | |
189 | [V4L2_MEMORY_USERPTR] = "userptr", | |
190 | [V4L2_MEMORY_OVERLAY] = "overlay", | |
191 | }; | |
192 | ||
193 | #define prt_names(a, arr) ((((a) >= 0) && ((a) < ARRAY_SIZE(arr))) ? \ | |
194 | arr[a] : "unknown") | |
195 | ||
196 | /* ------------------------------------------------------------------ */ | |
197 | /* debug help functions */ | |
8ab75e3e HV |
198 | |
199 | struct v4l2_ioctl_info { | |
200 | unsigned int ioctl; | |
201 | const char * const name; | |
202 | }; | |
203 | ||
204 | #define IOCTL_INFO(_ioctl) [_IOC_NR(_ioctl)] = { \ | |
205 | .ioctl = _ioctl, \ | |
206 | .name = #_ioctl, \ | |
207 | } | |
208 | ||
209 | static struct v4l2_ioctl_info v4l2_ioctls[] = { | |
210 | IOCTL_INFO(VIDIOC_QUERYCAP), | |
211 | IOCTL_INFO(VIDIOC_ENUM_FMT), | |
212 | IOCTL_INFO(VIDIOC_G_FMT), | |
213 | IOCTL_INFO(VIDIOC_S_FMT), | |
214 | IOCTL_INFO(VIDIOC_REQBUFS), | |
215 | IOCTL_INFO(VIDIOC_QUERYBUF), | |
216 | IOCTL_INFO(VIDIOC_G_FBUF), | |
217 | IOCTL_INFO(VIDIOC_S_FBUF), | |
218 | IOCTL_INFO(VIDIOC_OVERLAY), | |
219 | IOCTL_INFO(VIDIOC_QBUF), | |
220 | IOCTL_INFO(VIDIOC_DQBUF), | |
221 | IOCTL_INFO(VIDIOC_STREAMON), | |
222 | IOCTL_INFO(VIDIOC_STREAMOFF), | |
223 | IOCTL_INFO(VIDIOC_G_PARM), | |
224 | IOCTL_INFO(VIDIOC_S_PARM), | |
225 | IOCTL_INFO(VIDIOC_G_STD), | |
226 | IOCTL_INFO(VIDIOC_S_STD), | |
227 | IOCTL_INFO(VIDIOC_ENUMSTD), | |
228 | IOCTL_INFO(VIDIOC_ENUMINPUT), | |
229 | IOCTL_INFO(VIDIOC_G_CTRL), | |
230 | IOCTL_INFO(VIDIOC_S_CTRL), | |
231 | IOCTL_INFO(VIDIOC_G_TUNER), | |
232 | IOCTL_INFO(VIDIOC_S_TUNER), | |
233 | IOCTL_INFO(VIDIOC_G_AUDIO), | |
234 | IOCTL_INFO(VIDIOC_S_AUDIO), | |
235 | IOCTL_INFO(VIDIOC_QUERYCTRL), | |
236 | IOCTL_INFO(VIDIOC_QUERYMENU), | |
237 | IOCTL_INFO(VIDIOC_G_INPUT), | |
238 | IOCTL_INFO(VIDIOC_S_INPUT), | |
239 | IOCTL_INFO(VIDIOC_G_OUTPUT), | |
240 | IOCTL_INFO(VIDIOC_S_OUTPUT), | |
241 | IOCTL_INFO(VIDIOC_ENUMOUTPUT), | |
242 | IOCTL_INFO(VIDIOC_G_AUDOUT), | |
243 | IOCTL_INFO(VIDIOC_S_AUDOUT), | |
244 | IOCTL_INFO(VIDIOC_G_MODULATOR), | |
245 | IOCTL_INFO(VIDIOC_S_MODULATOR), | |
246 | IOCTL_INFO(VIDIOC_G_FREQUENCY), | |
247 | IOCTL_INFO(VIDIOC_S_FREQUENCY), | |
248 | IOCTL_INFO(VIDIOC_CROPCAP), | |
249 | IOCTL_INFO(VIDIOC_G_CROP), | |
250 | IOCTL_INFO(VIDIOC_S_CROP), | |
251 | IOCTL_INFO(VIDIOC_G_SELECTION), | |
252 | IOCTL_INFO(VIDIOC_S_SELECTION), | |
253 | IOCTL_INFO(VIDIOC_G_JPEGCOMP), | |
254 | IOCTL_INFO(VIDIOC_S_JPEGCOMP), | |
255 | IOCTL_INFO(VIDIOC_QUERYSTD), | |
256 | IOCTL_INFO(VIDIOC_TRY_FMT), | |
257 | IOCTL_INFO(VIDIOC_ENUMAUDIO), | |
258 | IOCTL_INFO(VIDIOC_ENUMAUDOUT), | |
259 | IOCTL_INFO(VIDIOC_G_PRIORITY), | |
260 | IOCTL_INFO(VIDIOC_S_PRIORITY), | |
261 | IOCTL_INFO(VIDIOC_G_SLICED_VBI_CAP), | |
262 | IOCTL_INFO(VIDIOC_LOG_STATUS), | |
263 | IOCTL_INFO(VIDIOC_G_EXT_CTRLS), | |
264 | IOCTL_INFO(VIDIOC_S_EXT_CTRLS), | |
265 | IOCTL_INFO(VIDIOC_TRY_EXT_CTRLS), | |
266 | IOCTL_INFO(VIDIOC_ENUM_FRAMESIZES), | |
267 | IOCTL_INFO(VIDIOC_ENUM_FRAMEINTERVALS), | |
268 | IOCTL_INFO(VIDIOC_G_ENC_INDEX), | |
269 | IOCTL_INFO(VIDIOC_ENCODER_CMD), | |
270 | IOCTL_INFO(VIDIOC_TRY_ENCODER_CMD), | |
271 | IOCTL_INFO(VIDIOC_DECODER_CMD), | |
272 | IOCTL_INFO(VIDIOC_TRY_DECODER_CMD), | |
273 | IOCTL_INFO(VIDIOC_DBG_S_REGISTER), | |
274 | IOCTL_INFO(VIDIOC_DBG_G_REGISTER), | |
275 | IOCTL_INFO(VIDIOC_DBG_G_CHIP_IDENT), | |
276 | IOCTL_INFO(VIDIOC_S_HW_FREQ_SEEK), | |
277 | IOCTL_INFO(VIDIOC_ENUM_DV_PRESETS), | |
278 | IOCTL_INFO(VIDIOC_S_DV_PRESET), | |
279 | IOCTL_INFO(VIDIOC_G_DV_PRESET), | |
280 | IOCTL_INFO(VIDIOC_QUERY_DV_PRESET), | |
281 | IOCTL_INFO(VIDIOC_S_DV_TIMINGS), | |
282 | IOCTL_INFO(VIDIOC_G_DV_TIMINGS), | |
283 | IOCTL_INFO(VIDIOC_DQEVENT), | |
284 | IOCTL_INFO(VIDIOC_SUBSCRIBE_EVENT), | |
285 | IOCTL_INFO(VIDIOC_UNSUBSCRIBE_EVENT), | |
286 | IOCTL_INFO(VIDIOC_CREATE_BUFS), | |
287 | IOCTL_INFO(VIDIOC_PREPARE_BUF), | |
35ea11ff HV |
288 | }; |
289 | #define V4L2_IOCTLS ARRAY_SIZE(v4l2_ioctls) | |
290 | ||
8ab75e3e HV |
291 | bool v4l2_is_known_ioctl(unsigned int cmd) |
292 | { | |
293 | if (_IOC_NR(cmd) >= V4L2_IOCTLS) | |
294 | return false; | |
295 | return v4l2_ioctls[_IOC_NR(cmd)].ioctl == cmd; | |
296 | } | |
297 | ||
35ea11ff HV |
298 | /* Common ioctl debug function. This function can be used by |
299 | external ioctl messages as well as internal V4L ioctl */ | |
300 | void v4l_printk_ioctl(unsigned int cmd) | |
301 | { | |
302 | char *dir, *type; | |
303 | ||
304 | switch (_IOC_TYPE(cmd)) { | |
305 | case 'd': | |
78a3b4db HV |
306 | type = "v4l2_int"; |
307 | break; | |
35ea11ff HV |
308 | case 'V': |
309 | if (_IOC_NR(cmd) >= V4L2_IOCTLS) { | |
310 | type = "v4l2"; | |
311 | break; | |
312 | } | |
8ab75e3e | 313 | printk("%s", v4l2_ioctls[_IOC_NR(cmd)].name); |
35ea11ff HV |
314 | return; |
315 | default: | |
316 | type = "unknown"; | |
317 | } | |
318 | ||
319 | switch (_IOC_DIR(cmd)) { | |
320 | case _IOC_NONE: dir = "--"; break; | |
321 | case _IOC_READ: dir = "r-"; break; | |
322 | case _IOC_WRITE: dir = "-w"; break; | |
323 | case _IOC_READ | _IOC_WRITE: dir = "rw"; break; | |
324 | default: dir = "*ERR*"; break; | |
325 | } | |
326 | printk("%s ioctl '%c', dir=%s, #%d (0x%08x)", | |
327 | type, _IOC_TYPE(cmd), dir, _IOC_NR(cmd), cmd); | |
328 | } | |
329 | EXPORT_SYMBOL(v4l_printk_ioctl); | |
330 | ||
35ea11ff HV |
331 | static void dbgbuf(unsigned int cmd, struct video_device *vfd, |
332 | struct v4l2_buffer *p) | |
333 | { | |
334 | struct v4l2_timecode *tc = &p->timecode; | |
d14e6d76 PO |
335 | struct v4l2_plane *plane; |
336 | int i; | |
35ea11ff HV |
337 | |
338 | dbgarg(cmd, "%02ld:%02d:%02d.%08ld index=%d, type=%s, " | |
d14e6d76 | 339 | "flags=0x%08d, field=%0d, sequence=%d, memory=%s\n", |
35ea11ff HV |
340 | p->timestamp.tv_sec / 3600, |
341 | (int)(p->timestamp.tv_sec / 60) % 60, | |
342 | (int)(p->timestamp.tv_sec % 60), | |
b045979d | 343 | (long)p->timestamp.tv_usec, |
35ea11ff HV |
344 | p->index, |
345 | prt_names(p->type, v4l2_type_names), | |
d14e6d76 PO |
346 | p->flags, p->field, p->sequence, |
347 | prt_names(p->memory, v4l2_memory_names)); | |
348 | ||
349 | if (V4L2_TYPE_IS_MULTIPLANAR(p->type) && p->m.planes) { | |
350 | for (i = 0; i < p->length; ++i) { | |
351 | plane = &p->m.planes[i]; | |
352 | dbgarg2("plane %d: bytesused=%d, data_offset=0x%08x " | |
353 | "offset/userptr=0x%08lx, length=%d\n", | |
354 | i, plane->bytesused, plane->data_offset, | |
355 | plane->m.userptr, plane->length); | |
356 | } | |
357 | } else { | |
358 | dbgarg2("bytesused=%d, offset/userptr=0x%08lx, length=%d\n", | |
359 | p->bytesused, p->m.userptr, p->length); | |
360 | } | |
361 | ||
35ea11ff HV |
362 | dbgarg2("timecode=%02d:%02d:%02d type=%d, " |
363 | "flags=0x%08d, frames=%d, userbits=0x%08x\n", | |
364 | tc->hours, tc->minutes, tc->seconds, | |
365 | tc->type, tc->flags, tc->frames, *(__u32 *)tc->userbits); | |
366 | } | |
367 | ||
368 | static inline void dbgrect(struct video_device *vfd, char *s, | |
369 | struct v4l2_rect *r) | |
370 | { | |
371 | dbgarg2("%sRect start at %dx%d, size=%dx%d\n", s, r->left, r->top, | |
372 | r->width, r->height); | |
373 | }; | |
374 | ||
375 | static inline void v4l_print_pix_fmt(struct video_device *vfd, | |
376 | struct v4l2_pix_format *fmt) | |
377 | { | |
378 | dbgarg2("width=%d, height=%d, format=%c%c%c%c, field=%s, " | |
379 | "bytesperline=%d sizeimage=%d, colorspace=%d\n", | |
380 | fmt->width, fmt->height, | |
381 | (fmt->pixelformat & 0xff), | |
382 | (fmt->pixelformat >> 8) & 0xff, | |
383 | (fmt->pixelformat >> 16) & 0xff, | |
384 | (fmt->pixelformat >> 24) & 0xff, | |
385 | prt_names(fmt->field, v4l2_field_names), | |
386 | fmt->bytesperline, fmt->sizeimage, fmt->colorspace); | |
387 | }; | |
388 | ||
d14e6d76 PO |
389 | static inline void v4l_print_pix_fmt_mplane(struct video_device *vfd, |
390 | struct v4l2_pix_format_mplane *fmt) | |
391 | { | |
392 | int i; | |
393 | ||
394 | dbgarg2("width=%d, height=%d, format=%c%c%c%c, field=%s, " | |
395 | "colorspace=%d, num_planes=%d\n", | |
396 | fmt->width, fmt->height, | |
397 | (fmt->pixelformat & 0xff), | |
398 | (fmt->pixelformat >> 8) & 0xff, | |
399 | (fmt->pixelformat >> 16) & 0xff, | |
400 | (fmt->pixelformat >> 24) & 0xff, | |
401 | prt_names(fmt->field, v4l2_field_names), | |
402 | fmt->colorspace, fmt->num_planes); | |
403 | ||
404 | for (i = 0; i < fmt->num_planes; ++i) | |
405 | dbgarg2("plane %d: bytesperline=%d sizeimage=%d\n", i, | |
406 | fmt->plane_fmt[i].bytesperline, | |
407 | fmt->plane_fmt[i].sizeimage); | |
408 | } | |
409 | ||
35ea11ff HV |
410 | static inline void v4l_print_ext_ctrls(unsigned int cmd, |
411 | struct video_device *vfd, struct v4l2_ext_controls *c, int show_vals) | |
412 | { | |
413 | __u32 i; | |
414 | ||
415 | if (!(vfd->debug & V4L2_DEBUG_IOCTL_ARG)) | |
416 | return; | |
417 | dbgarg(cmd, ""); | |
418 | printk(KERN_CONT "class=0x%x", c->ctrl_class); | |
419 | for (i = 0; i < c->count; i++) { | |
6b5a9492 | 420 | if (show_vals && !c->controls[i].size) |
35ea11ff HV |
421 | printk(KERN_CONT " id/val=0x%x/0x%x", |
422 | c->controls[i].id, c->controls[i].value); | |
423 | else | |
6b5a9492 HV |
424 | printk(KERN_CONT " id=0x%x,size=%u", |
425 | c->controls[i].id, c->controls[i].size); | |
35ea11ff HV |
426 | } |
427 | printk(KERN_CONT "\n"); | |
428 | }; | |
429 | ||
430 | static inline int check_ext_ctrls(struct v4l2_ext_controls *c, int allow_priv) | |
431 | { | |
432 | __u32 i; | |
433 | ||
434 | /* zero the reserved fields */ | |
435 | c->reserved[0] = c->reserved[1] = 0; | |
6b5a9492 | 436 | for (i = 0; i < c->count; i++) |
35ea11ff | 437 | c->controls[i].reserved2[0] = 0; |
6b5a9492 | 438 | |
35ea11ff HV |
439 | /* V4L2_CID_PRIVATE_BASE cannot be used as control class |
440 | when using extended controls. | |
441 | Only when passed in through VIDIOC_G_CTRL and VIDIOC_S_CTRL | |
442 | is it allowed for backwards compatibility. | |
443 | */ | |
444 | if (!allow_priv && c->ctrl_class == V4L2_CID_PRIVATE_BASE) | |
445 | return 0; | |
446 | /* Check that all controls are from the same control class. */ | |
447 | for (i = 0; i < c->count; i++) { | |
448 | if (V4L2_CTRL_ID2CLASS(c->controls[i].id) != c->ctrl_class) { | |
449 | c->error_idx = i; | |
450 | return 0; | |
451 | } | |
452 | } | |
453 | return 1; | |
454 | } | |
455 | ||
a399810c | 456 | static int check_fmt(const struct v4l2_ioctl_ops *ops, enum v4l2_buf_type type) |
35ea11ff | 457 | { |
a399810c HV |
458 | if (ops == NULL) |
459 | return -EINVAL; | |
460 | ||
35ea11ff HV |
461 | switch (type) { |
462 | case V4L2_BUF_TYPE_VIDEO_CAPTURE: | |
d14e6d76 PO |
463 | if (ops->vidioc_g_fmt_vid_cap || |
464 | ops->vidioc_g_fmt_vid_cap_mplane) | |
465 | return 0; | |
466 | break; | |
467 | case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE: | |
468 | if (ops->vidioc_g_fmt_vid_cap_mplane) | |
35ea11ff HV |
469 | return 0; |
470 | break; | |
471 | case V4L2_BUF_TYPE_VIDEO_OVERLAY: | |
1175d613 | 472 | if (ops->vidioc_g_fmt_vid_overlay) |
35ea11ff HV |
473 | return 0; |
474 | break; | |
475 | case V4L2_BUF_TYPE_VIDEO_OUTPUT: | |
d14e6d76 PO |
476 | if (ops->vidioc_g_fmt_vid_out || |
477 | ops->vidioc_g_fmt_vid_out_mplane) | |
478 | return 0; | |
479 | break; | |
480 | case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE: | |
481 | if (ops->vidioc_g_fmt_vid_out_mplane) | |
35ea11ff HV |
482 | return 0; |
483 | break; | |
484 | case V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY: | |
1175d613 | 485 | if (ops->vidioc_g_fmt_vid_out_overlay) |
35ea11ff HV |
486 | return 0; |
487 | break; | |
488 | case V4L2_BUF_TYPE_VBI_CAPTURE: | |
1175d613 | 489 | if (ops->vidioc_g_fmt_vbi_cap) |
35ea11ff HV |
490 | return 0; |
491 | break; | |
492 | case V4L2_BUF_TYPE_VBI_OUTPUT: | |
1175d613 | 493 | if (ops->vidioc_g_fmt_vbi_out) |
35ea11ff HV |
494 | return 0; |
495 | break; | |
496 | case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE: | |
1175d613 | 497 | if (ops->vidioc_g_fmt_sliced_vbi_cap) |
35ea11ff HV |
498 | return 0; |
499 | break; | |
500 | case V4L2_BUF_TYPE_SLICED_VBI_OUTPUT: | |
1175d613 | 501 | if (ops->vidioc_g_fmt_sliced_vbi_out) |
35ea11ff HV |
502 | return 0; |
503 | break; | |
504 | case V4L2_BUF_TYPE_PRIVATE: | |
1175d613 | 505 | if (ops->vidioc_g_fmt_type_private) |
35ea11ff HV |
506 | return 0; |
507 | break; | |
508 | } | |
509 | return -EINVAL; | |
510 | } | |
511 | ||
069b7479 | 512 | static long __video_do_ioctl(struct file *file, |
35ea11ff HV |
513 | unsigned int cmd, void *arg) |
514 | { | |
515 | struct video_device *vfd = video_devdata(file); | |
a399810c | 516 | const struct v4l2_ioctl_ops *ops = vfd->ioctl_ops; |
d5fbf32f | 517 | void *fh = file->private_data; |
99cd47bc | 518 | struct v4l2_fh *vfh = NULL; |
b1a873a3 | 519 | int use_fh_prio = 0; |
93d5a30b | 520 | long ret_prio = 0; |
9190d191 | 521 | long ret = -ENOTTY; |
35ea11ff | 522 | |
6a717883 HV |
523 | if (ops == NULL) { |
524 | printk(KERN_WARNING "videodev: \"%s\" has no ioctl_ops.\n", | |
525 | vfd->name); | |
9190d191 | 526 | return ret; |
6a717883 HV |
527 | } |
528 | ||
35ea11ff HV |
529 | if ((vfd->debug & V4L2_DEBUG_IOCTL) && |
530 | !(vfd->debug & V4L2_DEBUG_IOCTL_ARG)) { | |
531 | v4l_print_ioctl(vfd->name, cmd); | |
532 | printk(KERN_CONT "\n"); | |
533 | } | |
534 | ||
b1a873a3 | 535 | if (test_bit(V4L2_FL_USES_V4L2_FH, &vfd->flags)) { |
99cd47bc | 536 | vfh = file->private_data; |
b1a873a3 HV |
537 | use_fh_prio = test_bit(V4L2_FL_USE_FH_PRIO, &vfd->flags); |
538 | } | |
99cd47bc | 539 | |
93d5a30b HV |
540 | if (use_fh_prio) |
541 | ret_prio = v4l2_prio_check(vfd->prio, vfh->prio); | |
99cd47bc | 542 | |
6a717883 | 543 | switch (cmd) { |
a399810c | 544 | |
35ea11ff HV |
545 | /* --- capabilities ------------------------------------------ */ |
546 | case VIDIOC_QUERYCAP: | |
547 | { | |
548 | struct v4l2_capability *cap = (struct v4l2_capability *)arg; | |
35ea11ff | 549 | |
a399810c | 550 | if (!ops->vidioc_querycap) |
35ea11ff HV |
551 | break; |
552 | ||
ae6db515 | 553 | cap->version = LINUX_VERSION_CODE; |
a399810c | 554 | ret = ops->vidioc_querycap(file, fh, cap); |
35ea11ff HV |
555 | if (!ret) |
556 | dbgarg(cmd, "driver=%s, card=%s, bus=%s, " | |
557 | "version=0x%08x, " | |
583aa3a9 HV |
558 | "capabilities=0x%08x, " |
559 | "device_caps=0x%08x\n", | |
35ea11ff HV |
560 | cap->driver, cap->card, cap->bus_info, |
561 | cap->version, | |
583aa3a9 HV |
562 | cap->capabilities, |
563 | cap->device_caps); | |
35ea11ff HV |
564 | break; |
565 | } | |
566 | ||
567 | /* --- priority ------------------------------------------ */ | |
568 | case VIDIOC_G_PRIORITY: | |
569 | { | |
570 | enum v4l2_priority *p = arg; | |
571 | ||
99cd47bc HV |
572 | if (ops->vidioc_g_priority) { |
573 | ret = ops->vidioc_g_priority(file, fh, p); | |
b1a873a3 | 574 | } else if (use_fh_prio) { |
99cd47bc HV |
575 | *p = v4l2_prio_max(&vfd->v4l2_dev->prio); |
576 | ret = 0; | |
577 | } | |
35ea11ff HV |
578 | if (!ret) |
579 | dbgarg(cmd, "priority is %d\n", *p); | |
580 | break; | |
581 | } | |
582 | case VIDIOC_S_PRIORITY: | |
583 | { | |
584 | enum v4l2_priority *p = arg; | |
585 | ||
b1a873a3 | 586 | if (!ops->vidioc_s_priority && !use_fh_prio) |
a5f2db53 | 587 | break; |
35ea11ff | 588 | dbgarg(cmd, "setting priority to %d\n", *p); |
99cd47bc HV |
589 | if (ops->vidioc_s_priority) |
590 | ret = ops->vidioc_s_priority(file, fh, *p); | |
591 | else | |
93d5a30b HV |
592 | ret = ret_prio ? ret_prio : |
593 | v4l2_prio_change(&vfd->v4l2_dev->prio, | |
594 | &vfh->prio, *p); | |
35ea11ff HV |
595 | break; |
596 | } | |
597 | ||
598 | /* --- capture ioctls ---------------------------------------- */ | |
599 | case VIDIOC_ENUM_FMT: | |
600 | { | |
601 | struct v4l2_fmtdesc *f = arg; | |
35ea11ff | 602 | |
19c96e4b | 603 | switch (f->type) { |
35ea11ff | 604 | case V4L2_BUF_TYPE_VIDEO_CAPTURE: |
a5f2db53 | 605 | if (likely(ops->vidioc_enum_fmt_vid_cap)) |
a399810c | 606 | ret = ops->vidioc_enum_fmt_vid_cap(file, fh, f); |
35ea11ff | 607 | break; |
d14e6d76 | 608 | case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE: |
a5f2db53 | 609 | if (likely(ops->vidioc_enum_fmt_vid_cap_mplane)) |
d14e6d76 PO |
610 | ret = ops->vidioc_enum_fmt_vid_cap_mplane(file, |
611 | fh, f); | |
612 | break; | |
35ea11ff | 613 | case V4L2_BUF_TYPE_VIDEO_OVERLAY: |
a5f2db53 | 614 | if (likely(ops->vidioc_enum_fmt_vid_overlay)) |
a399810c | 615 | ret = ops->vidioc_enum_fmt_vid_overlay(file, |
35ea11ff HV |
616 | fh, f); |
617 | break; | |
35ea11ff | 618 | case V4L2_BUF_TYPE_VIDEO_OUTPUT: |
a5f2db53 | 619 | if (likely(ops->vidioc_enum_fmt_vid_out)) |
a399810c | 620 | ret = ops->vidioc_enum_fmt_vid_out(file, fh, f); |
35ea11ff | 621 | break; |
d14e6d76 | 622 | case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE: |
a5f2db53 | 623 | if (likely(ops->vidioc_enum_fmt_vid_out_mplane)) |
d14e6d76 PO |
624 | ret = ops->vidioc_enum_fmt_vid_out_mplane(file, |
625 | fh, f); | |
626 | break; | |
35ea11ff | 627 | case V4L2_BUF_TYPE_PRIVATE: |
a5f2db53 | 628 | if (likely(ops->vidioc_enum_fmt_type_private)) |
a399810c | 629 | ret = ops->vidioc_enum_fmt_type_private(file, |
35ea11ff HV |
630 | fh, f); |
631 | break; | |
632 | default: | |
633 | break; | |
634 | } | |
a5f2db53 | 635 | if (likely (!ret)) |
35ea11ff HV |
636 | dbgarg(cmd, "index=%d, type=%d, flags=%d, " |
637 | "pixelformat=%c%c%c%c, description='%s'\n", | |
638 | f->index, f->type, f->flags, | |
639 | (f->pixelformat & 0xff), | |
640 | (f->pixelformat >> 8) & 0xff, | |
641 | (f->pixelformat >> 16) & 0xff, | |
642 | (f->pixelformat >> 24) & 0xff, | |
643 | f->description); | |
93d5a30b HV |
644 | else if (ret == -ENOTTY && |
645 | (ops->vidioc_enum_fmt_vid_cap || | |
646 | ops->vidioc_enum_fmt_vid_out || | |
647 | ops->vidioc_enum_fmt_vid_cap_mplane || | |
648 | ops->vidioc_enum_fmt_vid_out_mplane || | |
649 | ops->vidioc_enum_fmt_vid_overlay || | |
650 | ops->vidioc_enum_fmt_type_private)) | |
651 | ret = -EINVAL; | |
35ea11ff HV |
652 | break; |
653 | } | |
654 | case VIDIOC_G_FMT: | |
655 | { | |
656 | struct v4l2_format *f = (struct v4l2_format *)arg; | |
657 | ||
35ea11ff HV |
658 | /* FIXME: Should be one dump per type */ |
659 | dbgarg(cmd, "type=%s\n", prt_names(f->type, v4l2_type_names)); | |
660 | ||
661 | switch (f->type) { | |
662 | case V4L2_BUF_TYPE_VIDEO_CAPTURE: | |
1d0c86ca | 663 | if (ops->vidioc_g_fmt_vid_cap) |
a399810c | 664 | ret = ops->vidioc_g_fmt_vid_cap(file, fh, f); |
35ea11ff HV |
665 | if (!ret) |
666 | v4l_print_pix_fmt(vfd, &f->fmt.pix); | |
667 | break; | |
d14e6d76 | 668 | case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE: |
1d0c86ca | 669 | if (ops->vidioc_g_fmt_vid_cap_mplane) |
d14e6d76 PO |
670 | ret = ops->vidioc_g_fmt_vid_cap_mplane(file, |
671 | fh, f); | |
d14e6d76 PO |
672 | if (!ret) |
673 | v4l_print_pix_fmt_mplane(vfd, &f->fmt.pix_mp); | |
674 | break; | |
35ea11ff | 675 | case V4L2_BUF_TYPE_VIDEO_OVERLAY: |
a5f2db53 | 676 | if (likely(ops->vidioc_g_fmt_vid_overlay)) |
a399810c | 677 | ret = ops->vidioc_g_fmt_vid_overlay(file, |
35ea11ff HV |
678 | fh, f); |
679 | break; | |
680 | case V4L2_BUF_TYPE_VIDEO_OUTPUT: | |
1d0c86ca | 681 | if (ops->vidioc_g_fmt_vid_out) |
a399810c | 682 | ret = ops->vidioc_g_fmt_vid_out(file, fh, f); |
35ea11ff HV |
683 | if (!ret) |
684 | v4l_print_pix_fmt(vfd, &f->fmt.pix); | |
685 | break; | |
d14e6d76 | 686 | case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE: |
1d0c86ca | 687 | if (ops->vidioc_g_fmt_vid_out_mplane) |
d14e6d76 PO |
688 | ret = ops->vidioc_g_fmt_vid_out_mplane(file, |
689 | fh, f); | |
d14e6d76 PO |
690 | if (!ret) |
691 | v4l_print_pix_fmt_mplane(vfd, &f->fmt.pix_mp); | |
692 | break; | |
35ea11ff | 693 | case V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY: |
a5f2db53 | 694 | if (likely(ops->vidioc_g_fmt_vid_out_overlay)) |
a399810c | 695 | ret = ops->vidioc_g_fmt_vid_out_overlay(file, |
35ea11ff HV |
696 | fh, f); |
697 | break; | |
698 | case V4L2_BUF_TYPE_VBI_CAPTURE: | |
a5f2db53 | 699 | if (likely(ops->vidioc_g_fmt_vbi_cap)) |
a399810c | 700 | ret = ops->vidioc_g_fmt_vbi_cap(file, fh, f); |
35ea11ff HV |
701 | break; |
702 | case V4L2_BUF_TYPE_VBI_OUTPUT: | |
a5f2db53 | 703 | if (likely(ops->vidioc_g_fmt_vbi_out)) |
a399810c | 704 | ret = ops->vidioc_g_fmt_vbi_out(file, fh, f); |
35ea11ff HV |
705 | break; |
706 | case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE: | |
a5f2db53 | 707 | if (likely(ops->vidioc_g_fmt_sliced_vbi_cap)) |
a399810c | 708 | ret = ops->vidioc_g_fmt_sliced_vbi_cap(file, |
35ea11ff HV |
709 | fh, f); |
710 | break; | |
711 | case V4L2_BUF_TYPE_SLICED_VBI_OUTPUT: | |
a5f2db53 | 712 | if (likely(ops->vidioc_g_fmt_sliced_vbi_out)) |
a399810c | 713 | ret = ops->vidioc_g_fmt_sliced_vbi_out(file, |
35ea11ff HV |
714 | fh, f); |
715 | break; | |
716 | case V4L2_BUF_TYPE_PRIVATE: | |
a5f2db53 | 717 | if (likely(ops->vidioc_g_fmt_type_private)) |
a399810c | 718 | ret = ops->vidioc_g_fmt_type_private(file, |
35ea11ff HV |
719 | fh, f); |
720 | break; | |
721 | } | |
93d5a30b HV |
722 | if (unlikely(ret == -ENOTTY && have_fmt_ops(g))) |
723 | ret = -EINVAL; | |
35ea11ff HV |
724 | |
725 | break; | |
726 | } | |
727 | case VIDIOC_S_FMT: | |
728 | { | |
729 | struct v4l2_format *f = (struct v4l2_format *)arg; | |
730 | ||
93d5a30b HV |
731 | if (!have_fmt_ops(s)) |
732 | break; | |
733 | if (ret_prio) { | |
734 | ret = ret_prio; | |
735 | break; | |
736 | } | |
737 | ret = -EINVAL; | |
738 | ||
35ea11ff HV |
739 | /* FIXME: Should be one dump per type */ |
740 | dbgarg(cmd, "type=%s\n", prt_names(f->type, v4l2_type_names)); | |
741 | ||
742 | switch (f->type) { | |
743 | case V4L2_BUF_TYPE_VIDEO_CAPTURE: | |
7ecc0cf9 | 744 | CLEAR_AFTER_FIELD(f, fmt.pix); |
35ea11ff | 745 | v4l_print_pix_fmt(vfd, &f->fmt.pix); |
1d0c86ca | 746 | if (ops->vidioc_s_fmt_vid_cap) |
a399810c | 747 | ret = ops->vidioc_s_fmt_vid_cap(file, fh, f); |
d14e6d76 PO |
748 | break; |
749 | case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE: | |
750 | CLEAR_AFTER_FIELD(f, fmt.pix_mp); | |
751 | v4l_print_pix_fmt_mplane(vfd, &f->fmt.pix_mp); | |
1d0c86ca | 752 | if (ops->vidioc_s_fmt_vid_cap_mplane) |
d14e6d76 PO |
753 | ret = ops->vidioc_s_fmt_vid_cap_mplane(file, |
754 | fh, f); | |
35ea11ff HV |
755 | break; |
756 | case V4L2_BUF_TYPE_VIDEO_OVERLAY: | |
7ecc0cf9 | 757 | CLEAR_AFTER_FIELD(f, fmt.win); |
a399810c HV |
758 | if (ops->vidioc_s_fmt_vid_overlay) |
759 | ret = ops->vidioc_s_fmt_vid_overlay(file, | |
35ea11ff HV |
760 | fh, f); |
761 | break; | |
762 | case V4L2_BUF_TYPE_VIDEO_OUTPUT: | |
7ecc0cf9 | 763 | CLEAR_AFTER_FIELD(f, fmt.pix); |
35ea11ff | 764 | v4l_print_pix_fmt(vfd, &f->fmt.pix); |
1d0c86ca | 765 | if (ops->vidioc_s_fmt_vid_out) |
a399810c | 766 | ret = ops->vidioc_s_fmt_vid_out(file, fh, f); |
d14e6d76 PO |
767 | break; |
768 | case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE: | |
769 | CLEAR_AFTER_FIELD(f, fmt.pix_mp); | |
770 | v4l_print_pix_fmt_mplane(vfd, &f->fmt.pix_mp); | |
1d0c86ca | 771 | if (ops->vidioc_s_fmt_vid_out_mplane) |
d14e6d76 PO |
772 | ret = ops->vidioc_s_fmt_vid_out_mplane(file, |
773 | fh, f); | |
35ea11ff HV |
774 | break; |
775 | case V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY: | |
7ecc0cf9 | 776 | CLEAR_AFTER_FIELD(f, fmt.win); |
a399810c HV |
777 | if (ops->vidioc_s_fmt_vid_out_overlay) |
778 | ret = ops->vidioc_s_fmt_vid_out_overlay(file, | |
35ea11ff HV |
779 | fh, f); |
780 | break; | |
781 | case V4L2_BUF_TYPE_VBI_CAPTURE: | |
7ecc0cf9 | 782 | CLEAR_AFTER_FIELD(f, fmt.vbi); |
a5f2db53 | 783 | if (likely(ops->vidioc_s_fmt_vbi_cap)) |
a399810c | 784 | ret = ops->vidioc_s_fmt_vbi_cap(file, fh, f); |
35ea11ff HV |
785 | break; |
786 | case V4L2_BUF_TYPE_VBI_OUTPUT: | |
7ecc0cf9 | 787 | CLEAR_AFTER_FIELD(f, fmt.vbi); |
a5f2db53 | 788 | if (likely(ops->vidioc_s_fmt_vbi_out)) |
a399810c | 789 | ret = ops->vidioc_s_fmt_vbi_out(file, fh, f); |
35ea11ff HV |
790 | break; |
791 | case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE: | |
7ecc0cf9 | 792 | CLEAR_AFTER_FIELD(f, fmt.sliced); |
a5f2db53 | 793 | if (likely(ops->vidioc_s_fmt_sliced_vbi_cap)) |
a399810c | 794 | ret = ops->vidioc_s_fmt_sliced_vbi_cap(file, |
35ea11ff HV |
795 | fh, f); |
796 | break; | |
797 | case V4L2_BUF_TYPE_SLICED_VBI_OUTPUT: | |
7ecc0cf9 | 798 | CLEAR_AFTER_FIELD(f, fmt.sliced); |
a5f2db53 | 799 | if (likely(ops->vidioc_s_fmt_sliced_vbi_out)) |
a399810c | 800 | ret = ops->vidioc_s_fmt_sliced_vbi_out(file, |
35ea11ff | 801 | fh, f); |
a5f2db53 | 802 | |
35ea11ff HV |
803 | break; |
804 | case V4L2_BUF_TYPE_PRIVATE: | |
7ecc0cf9 | 805 | /* CLEAR_AFTER_FIELD(f, fmt.raw_data); <- does nothing */ |
a5f2db53 | 806 | if (likely(ops->vidioc_s_fmt_type_private)) |
a399810c | 807 | ret = ops->vidioc_s_fmt_type_private(file, |
35ea11ff HV |
808 | fh, f); |
809 | break; | |
810 | } | |
811 | break; | |
812 | } | |
813 | case VIDIOC_TRY_FMT: | |
814 | { | |
815 | struct v4l2_format *f = (struct v4l2_format *)arg; | |
816 | ||
817 | /* FIXME: Should be one dump per type */ | |
818 | dbgarg(cmd, "type=%s\n", prt_names(f->type, | |
819 | v4l2_type_names)); | |
820 | switch (f->type) { | |
821 | case V4L2_BUF_TYPE_VIDEO_CAPTURE: | |
7ecc0cf9 | 822 | CLEAR_AFTER_FIELD(f, fmt.pix); |
1d0c86ca | 823 | if (ops->vidioc_try_fmt_vid_cap) |
a399810c | 824 | ret = ops->vidioc_try_fmt_vid_cap(file, fh, f); |
35ea11ff HV |
825 | if (!ret) |
826 | v4l_print_pix_fmt(vfd, &f->fmt.pix); | |
827 | break; | |
d14e6d76 PO |
828 | case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE: |
829 | CLEAR_AFTER_FIELD(f, fmt.pix_mp); | |
1d0c86ca | 830 | if (ops->vidioc_try_fmt_vid_cap_mplane) |
d14e6d76 PO |
831 | ret = ops->vidioc_try_fmt_vid_cap_mplane(file, |
832 | fh, f); | |
d14e6d76 PO |
833 | if (!ret) |
834 | v4l_print_pix_fmt_mplane(vfd, &f->fmt.pix_mp); | |
835 | break; | |
35ea11ff | 836 | case V4L2_BUF_TYPE_VIDEO_OVERLAY: |
7ecc0cf9 | 837 | CLEAR_AFTER_FIELD(f, fmt.win); |
a5f2db53 | 838 | if (likely(ops->vidioc_try_fmt_vid_overlay)) |
a399810c | 839 | ret = ops->vidioc_try_fmt_vid_overlay(file, |
35ea11ff HV |
840 | fh, f); |
841 | break; | |
842 | case V4L2_BUF_TYPE_VIDEO_OUTPUT: | |
7ecc0cf9 | 843 | CLEAR_AFTER_FIELD(f, fmt.pix); |
1d0c86ca | 844 | if (ops->vidioc_try_fmt_vid_out) |
a399810c | 845 | ret = ops->vidioc_try_fmt_vid_out(file, fh, f); |
35ea11ff HV |
846 | if (!ret) |
847 | v4l_print_pix_fmt(vfd, &f->fmt.pix); | |
848 | break; | |
d14e6d76 PO |
849 | case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE: |
850 | CLEAR_AFTER_FIELD(f, fmt.pix_mp); | |
1d0c86ca | 851 | if (ops->vidioc_try_fmt_vid_out_mplane) |
d14e6d76 PO |
852 | ret = ops->vidioc_try_fmt_vid_out_mplane(file, |
853 | fh, f); | |
d14e6d76 PO |
854 | if (!ret) |
855 | v4l_print_pix_fmt_mplane(vfd, &f->fmt.pix_mp); | |
856 | break; | |
35ea11ff | 857 | case V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY: |
7ecc0cf9 | 858 | CLEAR_AFTER_FIELD(f, fmt.win); |
a5f2db53 | 859 | if (likely(ops->vidioc_try_fmt_vid_out_overlay)) |
a399810c | 860 | ret = ops->vidioc_try_fmt_vid_out_overlay(file, |
35ea11ff HV |
861 | fh, f); |
862 | break; | |
863 | case V4L2_BUF_TYPE_VBI_CAPTURE: | |
7ecc0cf9 | 864 | CLEAR_AFTER_FIELD(f, fmt.vbi); |
a5f2db53 | 865 | if (likely(ops->vidioc_try_fmt_vbi_cap)) |
a399810c | 866 | ret = ops->vidioc_try_fmt_vbi_cap(file, fh, f); |
35ea11ff HV |
867 | break; |
868 | case V4L2_BUF_TYPE_VBI_OUTPUT: | |
7ecc0cf9 | 869 | CLEAR_AFTER_FIELD(f, fmt.vbi); |
a5f2db53 | 870 | if (likely(ops->vidioc_try_fmt_vbi_out)) |
a399810c | 871 | ret = ops->vidioc_try_fmt_vbi_out(file, fh, f); |
35ea11ff HV |
872 | break; |
873 | case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE: | |
7ecc0cf9 | 874 | CLEAR_AFTER_FIELD(f, fmt.sliced); |
a5f2db53 | 875 | if (likely(ops->vidioc_try_fmt_sliced_vbi_cap)) |
a399810c | 876 | ret = ops->vidioc_try_fmt_sliced_vbi_cap(file, |
35ea11ff HV |
877 | fh, f); |
878 | break; | |
879 | case V4L2_BUF_TYPE_SLICED_VBI_OUTPUT: | |
7ecc0cf9 | 880 | CLEAR_AFTER_FIELD(f, fmt.sliced); |
a5f2db53 | 881 | if (likely(ops->vidioc_try_fmt_sliced_vbi_out)) |
a399810c | 882 | ret = ops->vidioc_try_fmt_sliced_vbi_out(file, |
35ea11ff HV |
883 | fh, f); |
884 | break; | |
885 | case V4L2_BUF_TYPE_PRIVATE: | |
7ecc0cf9 | 886 | /* CLEAR_AFTER_FIELD(f, fmt.raw_data); <- does nothing */ |
a5f2db53 | 887 | if (likely(ops->vidioc_try_fmt_type_private)) |
a399810c | 888 | ret = ops->vidioc_try_fmt_type_private(file, |
35ea11ff HV |
889 | fh, f); |
890 | break; | |
891 | } | |
93d5a30b HV |
892 | if (unlikely(ret == -ENOTTY && have_fmt_ops(try))) |
893 | ret = -EINVAL; | |
35ea11ff HV |
894 | break; |
895 | } | |
896 | /* FIXME: Those buf reqs could be handled here, | |
897 | with some changes on videobuf to allow its header to be included at | |
898 | videodev2.h or being merged at videodev2. | |
899 | */ | |
900 | case VIDIOC_REQBUFS: | |
901 | { | |
902 | struct v4l2_requestbuffers *p = arg; | |
903 | ||
a399810c | 904 | if (!ops->vidioc_reqbufs) |
35ea11ff | 905 | break; |
93d5a30b HV |
906 | if (ret_prio) { |
907 | ret = ret_prio; | |
908 | break; | |
909 | } | |
a399810c | 910 | ret = check_fmt(ops, p->type); |
35ea11ff HV |
911 | if (ret) |
912 | break; | |
913 | ||
7ecc0cf9 TP |
914 | if (p->type < V4L2_BUF_TYPE_PRIVATE) |
915 | CLEAR_AFTER_FIELD(p, memory); | |
916 | ||
a399810c | 917 | ret = ops->vidioc_reqbufs(file, fh, p); |
35ea11ff HV |
918 | dbgarg(cmd, "count=%d, type=%s, memory=%s\n", |
919 | p->count, | |
920 | prt_names(p->type, v4l2_type_names), | |
921 | prt_names(p->memory, v4l2_memory_names)); | |
922 | break; | |
923 | } | |
924 | case VIDIOC_QUERYBUF: | |
925 | { | |
926 | struct v4l2_buffer *p = arg; | |
927 | ||
a399810c | 928 | if (!ops->vidioc_querybuf) |
35ea11ff | 929 | break; |
a399810c | 930 | ret = check_fmt(ops, p->type); |
35ea11ff HV |
931 | if (ret) |
932 | break; | |
933 | ||
a399810c | 934 | ret = ops->vidioc_querybuf(file, fh, p); |
35ea11ff HV |
935 | if (!ret) |
936 | dbgbuf(cmd, vfd, p); | |
937 | break; | |
938 | } | |
939 | case VIDIOC_QBUF: | |
940 | { | |
941 | struct v4l2_buffer *p = arg; | |
942 | ||
a399810c | 943 | if (!ops->vidioc_qbuf) |
35ea11ff | 944 | break; |
a399810c | 945 | ret = check_fmt(ops, p->type); |
35ea11ff HV |
946 | if (ret) |
947 | break; | |
948 | ||
a399810c | 949 | ret = ops->vidioc_qbuf(file, fh, p); |
35ea11ff HV |
950 | if (!ret) |
951 | dbgbuf(cmd, vfd, p); | |
952 | break; | |
953 | } | |
954 | case VIDIOC_DQBUF: | |
955 | { | |
956 | struct v4l2_buffer *p = arg; | |
957 | ||
a399810c | 958 | if (!ops->vidioc_dqbuf) |
35ea11ff | 959 | break; |
a399810c | 960 | ret = check_fmt(ops, p->type); |
35ea11ff HV |
961 | if (ret) |
962 | break; | |
963 | ||
a399810c | 964 | ret = ops->vidioc_dqbuf(file, fh, p); |
35ea11ff HV |
965 | if (!ret) |
966 | dbgbuf(cmd, vfd, p); | |
967 | break; | |
968 | } | |
969 | case VIDIOC_OVERLAY: | |
970 | { | |
971 | int *i = arg; | |
972 | ||
a399810c | 973 | if (!ops->vidioc_overlay) |
35ea11ff | 974 | break; |
93d5a30b HV |
975 | if (ret_prio) { |
976 | ret = ret_prio; | |
977 | break; | |
978 | } | |
35ea11ff | 979 | dbgarg(cmd, "value=%d\n", *i); |
a399810c | 980 | ret = ops->vidioc_overlay(file, fh, *i); |
35ea11ff HV |
981 | break; |
982 | } | |
983 | case VIDIOC_G_FBUF: | |
984 | { | |
985 | struct v4l2_framebuffer *p = arg; | |
986 | ||
a399810c | 987 | if (!ops->vidioc_g_fbuf) |
35ea11ff | 988 | break; |
a399810c | 989 | ret = ops->vidioc_g_fbuf(file, fh, arg); |
35ea11ff HV |
990 | if (!ret) { |
991 | dbgarg(cmd, "capability=0x%x, flags=%d, base=0x%08lx\n", | |
992 | p->capability, p->flags, | |
993 | (unsigned long)p->base); | |
994 | v4l_print_pix_fmt(vfd, &p->fmt); | |
995 | } | |
996 | break; | |
997 | } | |
998 | case VIDIOC_S_FBUF: | |
999 | { | |
1000 | struct v4l2_framebuffer *p = arg; | |
1001 | ||
a399810c | 1002 | if (!ops->vidioc_s_fbuf) |
35ea11ff | 1003 | break; |
93d5a30b HV |
1004 | if (ret_prio) { |
1005 | ret = ret_prio; | |
1006 | break; | |
1007 | } | |
35ea11ff HV |
1008 | dbgarg(cmd, "capability=0x%x, flags=%d, base=0x%08lx\n", |
1009 | p->capability, p->flags, (unsigned long)p->base); | |
1010 | v4l_print_pix_fmt(vfd, &p->fmt); | |
a399810c | 1011 | ret = ops->vidioc_s_fbuf(file, fh, arg); |
35ea11ff HV |
1012 | break; |
1013 | } | |
1014 | case VIDIOC_STREAMON: | |
1015 | { | |
1016 | enum v4l2_buf_type i = *(int *)arg; | |
1017 | ||
a399810c | 1018 | if (!ops->vidioc_streamon) |
35ea11ff | 1019 | break; |
93d5a30b HV |
1020 | if (ret_prio) { |
1021 | ret = ret_prio; | |
1022 | break; | |
1023 | } | |
35ea11ff | 1024 | dbgarg(cmd, "type=%s\n", prt_names(i, v4l2_type_names)); |
a399810c | 1025 | ret = ops->vidioc_streamon(file, fh, i); |
35ea11ff HV |
1026 | break; |
1027 | } | |
1028 | case VIDIOC_STREAMOFF: | |
1029 | { | |
1030 | enum v4l2_buf_type i = *(int *)arg; | |
1031 | ||
a399810c | 1032 | if (!ops->vidioc_streamoff) |
35ea11ff | 1033 | break; |
93d5a30b HV |
1034 | if (ret_prio) { |
1035 | ret = ret_prio; | |
1036 | break; | |
1037 | } | |
35ea11ff | 1038 | dbgarg(cmd, "type=%s\n", prt_names(i, v4l2_type_names)); |
a399810c | 1039 | ret = ops->vidioc_streamoff(file, fh, i); |
35ea11ff HV |
1040 | break; |
1041 | } | |
1042 | /* ---------- tv norms ---------- */ | |
1043 | case VIDIOC_ENUMSTD: | |
1044 | { | |
1045 | struct v4l2_standard *p = arg; | |
1046 | v4l2_std_id id = vfd->tvnorms, curr_id = 0; | |
1047 | unsigned int index = p->index, i, j = 0; | |
1048 | const char *descr = ""; | |
1049 | ||
93d5a30b HV |
1050 | if (id == 0) |
1051 | break; | |
1052 | ret = -EINVAL; | |
1053 | ||
35ea11ff HV |
1054 | /* Return norm array in a canonical way */ |
1055 | for (i = 0; i <= index && id; i++) { | |
1056 | /* last std value in the standards array is 0, so this | |
1057 | while always ends there since (id & 0) == 0. */ | |
1058 | while ((id & standards[j].std) != standards[j].std) | |
1059 | j++; | |
1060 | curr_id = standards[j].std; | |
1061 | descr = standards[j].descr; | |
1062 | j++; | |
1063 | if (curr_id == 0) | |
1064 | break; | |
1065 | if (curr_id != V4L2_STD_PAL && | |
1066 | curr_id != V4L2_STD_SECAM && | |
1067 | curr_id != V4L2_STD_NTSC) | |
1068 | id &= ~curr_id; | |
1069 | } | |
1070 | if (i <= index) | |
3f5e1824 | 1071 | break; |
35ea11ff HV |
1072 | |
1073 | v4l2_video_std_construct(p, curr_id, descr); | |
35ea11ff HV |
1074 | |
1075 | dbgarg(cmd, "index=%d, id=0x%Lx, name=%s, fps=%d/%d, " | |
1076 | "framelines=%d\n", p->index, | |
1077 | (unsigned long long)p->id, p->name, | |
1078 | p->frameperiod.numerator, | |
1079 | p->frameperiod.denominator, | |
1080 | p->framelines); | |
1081 | ||
1082 | ret = 0; | |
1083 | break; | |
1084 | } | |
1085 | case VIDIOC_G_STD: | |
1086 | { | |
1087 | v4l2_std_id *id = arg; | |
1088 | ||
35ea11ff | 1089 | /* Calls the specific handler */ |
a399810c HV |
1090 | if (ops->vidioc_g_std) |
1091 | ret = ops->vidioc_g_std(file, fh, id); | |
a5f2db53 MCC |
1092 | else if (vfd->current_norm) { |
1093 | ret = 0; | |
35ea11ff | 1094 | *id = vfd->current_norm; |
a5f2db53 | 1095 | } |
35ea11ff | 1096 | |
a5f2db53 | 1097 | if (likely(!ret)) |
35ea11ff HV |
1098 | dbgarg(cmd, "std=0x%08Lx\n", (long long unsigned)*id); |
1099 | break; | |
1100 | } | |
1101 | case VIDIOC_S_STD: | |
1102 | { | |
1103 | v4l2_std_id *id = arg, norm; | |
1104 | ||
1105 | dbgarg(cmd, "std=%08Lx\n", (long long unsigned)*id); | |
1106 | ||
93d5a30b HV |
1107 | if (!ops->vidioc_s_std) |
1108 | break; | |
1109 | ||
1110 | if (ret_prio) { | |
1111 | ret = ret_prio; | |
1112 | break; | |
1113 | } | |
1114 | ret = -EINVAL; | |
35ea11ff HV |
1115 | norm = (*id) & vfd->tvnorms; |
1116 | if (vfd->tvnorms && !norm) /* Check if std is supported */ | |
1117 | break; | |
1118 | ||
1119 | /* Calls the specific handler */ | |
93d5a30b | 1120 | ret = ops->vidioc_s_std(file, fh, &norm); |
35ea11ff HV |
1121 | |
1122 | /* Updates standard information */ | |
1123 | if (ret >= 0) | |
1124 | vfd->current_norm = norm; | |
1125 | break; | |
1126 | } | |
1127 | case VIDIOC_QUERYSTD: | |
1128 | { | |
1129 | v4l2_std_id *p = arg; | |
1130 | ||
a399810c | 1131 | if (!ops->vidioc_querystd) |
35ea11ff | 1132 | break; |
8715e6cb MCC |
1133 | /* |
1134 | * If nothing detected, it should return all supported | |
1135 | * Drivers just need to mask the std argument, in order | |
1136 | * to remove the standards that don't apply from the mask. | |
1137 | * This means that tuners, audio and video decoders can join | |
1138 | * their efforts to improve the standards detection | |
1139 | */ | |
1140 | *p = vfd->tvnorms; | |
a399810c | 1141 | ret = ops->vidioc_querystd(file, fh, arg); |
35ea11ff HV |
1142 | if (!ret) |
1143 | dbgarg(cmd, "detected std=%08Lx\n", | |
1144 | (unsigned long long)*p); | |
1145 | break; | |
1146 | } | |
1147 | /* ------ input switching ---------- */ | |
1148 | /* FIXME: Inputs can be handled inside videodev2 */ | |
1149 | case VIDIOC_ENUMINPUT: | |
1150 | { | |
1151 | struct v4l2_input *p = arg; | |
35ea11ff | 1152 | |
b6456c0c MK |
1153 | /* |
1154 | * We set the flags for CAP_PRESETS, CAP_CUSTOM_TIMINGS & | |
1155 | * CAP_STD here based on ioctl handler provided by the | |
1156 | * driver. If the driver doesn't support these | |
1157 | * for a specific input, it must override these flags. | |
1158 | */ | |
1159 | if (ops->vidioc_s_std) | |
1160 | p->capabilities |= V4L2_IN_CAP_STD; | |
1161 | if (ops->vidioc_s_dv_preset) | |
1162 | p->capabilities |= V4L2_IN_CAP_PRESETS; | |
1163 | if (ops->vidioc_s_dv_timings) | |
1164 | p->capabilities |= V4L2_IN_CAP_CUSTOM_TIMINGS; | |
1165 | ||
a399810c | 1166 | if (!ops->vidioc_enum_input) |
35ea11ff | 1167 | break; |
35ea11ff | 1168 | |
a399810c | 1169 | ret = ops->vidioc_enum_input(file, fh, p); |
35ea11ff HV |
1170 | if (!ret) |
1171 | dbgarg(cmd, "index=%d, name=%s, type=%d, " | |
1172 | "audioset=%d, " | |
1173 | "tuner=%d, std=%08Lx, status=%d\n", | |
1174 | p->index, p->name, p->type, p->audioset, | |
1175 | p->tuner, | |
1176 | (unsigned long long)p->std, | |
1177 | p->status); | |
1178 | break; | |
1179 | } | |
1180 | case VIDIOC_G_INPUT: | |
1181 | { | |
1182 | unsigned int *i = arg; | |
1183 | ||
a399810c | 1184 | if (!ops->vidioc_g_input) |
35ea11ff | 1185 | break; |
a399810c | 1186 | ret = ops->vidioc_g_input(file, fh, i); |
35ea11ff HV |
1187 | if (!ret) |
1188 | dbgarg(cmd, "value=%d\n", *i); | |
1189 | break; | |
1190 | } | |
1191 | case VIDIOC_S_INPUT: | |
1192 | { | |
1193 | unsigned int *i = arg; | |
1194 | ||
a399810c | 1195 | if (!ops->vidioc_s_input) |
35ea11ff | 1196 | break; |
93d5a30b HV |
1197 | if (ret_prio) { |
1198 | ret = ret_prio; | |
1199 | break; | |
1200 | } | |
35ea11ff | 1201 | dbgarg(cmd, "value=%d\n", *i); |
a399810c | 1202 | ret = ops->vidioc_s_input(file, fh, *i); |
35ea11ff HV |
1203 | break; |
1204 | } | |
1205 | ||
1206 | /* ------ output switching ---------- */ | |
1207 | case VIDIOC_ENUMOUTPUT: | |
1208 | { | |
1209 | struct v4l2_output *p = arg; | |
35ea11ff | 1210 | |
a399810c | 1211 | if (!ops->vidioc_enum_output) |
35ea11ff | 1212 | break; |
35ea11ff | 1213 | |
b6456c0c MK |
1214 | /* |
1215 | * We set the flags for CAP_PRESETS, CAP_CUSTOM_TIMINGS & | |
1216 | * CAP_STD here based on ioctl handler provided by the | |
1217 | * driver. If the driver doesn't support these | |
1218 | * for a specific output, it must override these flags. | |
1219 | */ | |
1220 | if (ops->vidioc_s_std) | |
1221 | p->capabilities |= V4L2_OUT_CAP_STD; | |
1222 | if (ops->vidioc_s_dv_preset) | |
1223 | p->capabilities |= V4L2_OUT_CAP_PRESETS; | |
1224 | if (ops->vidioc_s_dv_timings) | |
1225 | p->capabilities |= V4L2_OUT_CAP_CUSTOM_TIMINGS; | |
1226 | ||
a399810c | 1227 | ret = ops->vidioc_enum_output(file, fh, p); |
35ea11ff HV |
1228 | if (!ret) |
1229 | dbgarg(cmd, "index=%d, name=%s, type=%d, " | |
1230 | "audioset=0x%x, " | |
1231 | "modulator=%d, std=0x%08Lx\n", | |
1232 | p->index, p->name, p->type, p->audioset, | |
1233 | p->modulator, (unsigned long long)p->std); | |
1234 | break; | |
1235 | } | |
1236 | case VIDIOC_G_OUTPUT: | |
1237 | { | |
1238 | unsigned int *i = arg; | |
1239 | ||
a399810c | 1240 | if (!ops->vidioc_g_output) |
35ea11ff | 1241 | break; |
a399810c | 1242 | ret = ops->vidioc_g_output(file, fh, i); |
35ea11ff HV |
1243 | if (!ret) |
1244 | dbgarg(cmd, "value=%d\n", *i); | |
1245 | break; | |
1246 | } | |
1247 | case VIDIOC_S_OUTPUT: | |
1248 | { | |
1249 | unsigned int *i = arg; | |
1250 | ||
a399810c | 1251 | if (!ops->vidioc_s_output) |
35ea11ff | 1252 | break; |
93d5a30b HV |
1253 | if (ret_prio) { |
1254 | ret = ret_prio; | |
1255 | break; | |
1256 | } | |
35ea11ff | 1257 | dbgarg(cmd, "value=%d\n", *i); |
a399810c | 1258 | ret = ops->vidioc_s_output(file, fh, *i); |
35ea11ff HV |
1259 | break; |
1260 | } | |
1261 | ||
1262 | /* --- controls ---------------------------------------------- */ | |
1263 | case VIDIOC_QUERYCTRL: | |
1264 | { | |
1265 | struct v4l2_queryctrl *p = arg; | |
1266 | ||
2d28b686 HV |
1267 | if (vfh && vfh->ctrl_handler) |
1268 | ret = v4l2_queryctrl(vfh->ctrl_handler, p); | |
1269 | else if (vfd->ctrl_handler) | |
11bbc1ca HV |
1270 | ret = v4l2_queryctrl(vfd->ctrl_handler, p); |
1271 | else if (ops->vidioc_queryctrl) | |
1272 | ret = ops->vidioc_queryctrl(file, fh, p); | |
1273 | else | |
35ea11ff | 1274 | break; |
35ea11ff HV |
1275 | if (!ret) |
1276 | dbgarg(cmd, "id=0x%x, type=%d, name=%s, min/max=%d/%d, " | |
1277 | "step=%d, default=%d, flags=0x%08x\n", | |
1278 | p->id, p->type, p->name, | |
1279 | p->minimum, p->maximum, | |
1280 | p->step, p->default_value, p->flags); | |
1281 | else | |
1282 | dbgarg(cmd, "id=0x%x\n", p->id); | |
1283 | break; | |
1284 | } | |
1285 | case VIDIOC_G_CTRL: | |
1286 | { | |
1287 | struct v4l2_control *p = arg; | |
1288 | ||
2d28b686 HV |
1289 | if (vfh && vfh->ctrl_handler) |
1290 | ret = v4l2_g_ctrl(vfh->ctrl_handler, p); | |
1291 | else if (vfd->ctrl_handler) | |
11bbc1ca HV |
1292 | ret = v4l2_g_ctrl(vfd->ctrl_handler, p); |
1293 | else if (ops->vidioc_g_ctrl) | |
a399810c HV |
1294 | ret = ops->vidioc_g_ctrl(file, fh, p); |
1295 | else if (ops->vidioc_g_ext_ctrls) { | |
35ea11ff HV |
1296 | struct v4l2_ext_controls ctrls; |
1297 | struct v4l2_ext_control ctrl; | |
1298 | ||
1299 | ctrls.ctrl_class = V4L2_CTRL_ID2CLASS(p->id); | |
1300 | ctrls.count = 1; | |
1301 | ctrls.controls = &ctrl; | |
1302 | ctrl.id = p->id; | |
1303 | ctrl.value = p->value; | |
1304 | if (check_ext_ctrls(&ctrls, 1)) { | |
a399810c | 1305 | ret = ops->vidioc_g_ext_ctrls(file, fh, &ctrls); |
35ea11ff HV |
1306 | if (ret == 0) |
1307 | p->value = ctrl.value; | |
1308 | } | |
1309 | } else | |
1310 | break; | |
1311 | if (!ret) | |
1312 | dbgarg(cmd, "id=0x%x, value=%d\n", p->id, p->value); | |
1313 | else | |
1314 | dbgarg(cmd, "id=0x%x\n", p->id); | |
1315 | break; | |
1316 | } | |
1317 | case VIDIOC_S_CTRL: | |
1318 | { | |
1319 | struct v4l2_control *p = arg; | |
1320 | struct v4l2_ext_controls ctrls; | |
1321 | struct v4l2_ext_control ctrl; | |
1322 | ||
2d28b686 | 1323 | if (!(vfh && vfh->ctrl_handler) && !vfd->ctrl_handler && |
11bbc1ca | 1324 | !ops->vidioc_s_ctrl && !ops->vidioc_s_ext_ctrls) |
35ea11ff | 1325 | break; |
93d5a30b HV |
1326 | if (ret_prio) { |
1327 | ret = ret_prio; | |
1328 | break; | |
1329 | } | |
35ea11ff HV |
1330 | |
1331 | dbgarg(cmd, "id=0x%x, value=%d\n", p->id, p->value); | |
1332 | ||
2d28b686 | 1333 | if (vfh && vfh->ctrl_handler) { |
ab892bac | 1334 | ret = v4l2_s_ctrl(vfh, vfh->ctrl_handler, p); |
2d28b686 HV |
1335 | break; |
1336 | } | |
11bbc1ca | 1337 | if (vfd->ctrl_handler) { |
ab892bac | 1338 | ret = v4l2_s_ctrl(NULL, vfd->ctrl_handler, p); |
11bbc1ca HV |
1339 | break; |
1340 | } | |
a399810c HV |
1341 | if (ops->vidioc_s_ctrl) { |
1342 | ret = ops->vidioc_s_ctrl(file, fh, p); | |
35ea11ff HV |
1343 | break; |
1344 | } | |
a399810c | 1345 | if (!ops->vidioc_s_ext_ctrls) |
35ea11ff HV |
1346 | break; |
1347 | ||
1348 | ctrls.ctrl_class = V4L2_CTRL_ID2CLASS(p->id); | |
1349 | ctrls.count = 1; | |
1350 | ctrls.controls = &ctrl; | |
1351 | ctrl.id = p->id; | |
1352 | ctrl.value = p->value; | |
1353 | if (check_ext_ctrls(&ctrls, 1)) | |
a399810c | 1354 | ret = ops->vidioc_s_ext_ctrls(file, fh, &ctrls); |
93d5a30b HV |
1355 | else |
1356 | ret = -EINVAL; | |
35ea11ff HV |
1357 | break; |
1358 | } | |
1359 | case VIDIOC_G_EXT_CTRLS: | |
1360 | { | |
1361 | struct v4l2_ext_controls *p = arg; | |
1362 | ||
1363 | p->error_idx = p->count; | |
2d28b686 HV |
1364 | if (vfh && vfh->ctrl_handler) |
1365 | ret = v4l2_g_ext_ctrls(vfh->ctrl_handler, p); | |
1366 | else if (vfd->ctrl_handler) | |
11bbc1ca | 1367 | ret = v4l2_g_ext_ctrls(vfd->ctrl_handler, p); |
93d5a30b HV |
1368 | else if (ops->vidioc_g_ext_ctrls) |
1369 | ret = check_ext_ctrls(p, 0) ? | |
1370 | ops->vidioc_g_ext_ctrls(file, fh, p) : | |
1371 | -EINVAL; | |
11bbc1ca HV |
1372 | else |
1373 | break; | |
35ea11ff HV |
1374 | v4l_print_ext_ctrls(cmd, vfd, p, !ret); |
1375 | break; | |
1376 | } | |
1377 | case VIDIOC_S_EXT_CTRLS: | |
1378 | { | |
1379 | struct v4l2_ext_controls *p = arg; | |
1380 | ||
1381 | p->error_idx = p->count; | |
2d28b686 HV |
1382 | if (!(vfh && vfh->ctrl_handler) && !vfd->ctrl_handler && |
1383 | !ops->vidioc_s_ext_ctrls) | |
35ea11ff | 1384 | break; |
93d5a30b HV |
1385 | if (ret_prio) { |
1386 | ret = ret_prio; | |
1387 | break; | |
1388 | } | |
35ea11ff | 1389 | v4l_print_ext_ctrls(cmd, vfd, p, 1); |
2d28b686 | 1390 | if (vfh && vfh->ctrl_handler) |
ab892bac | 1391 | ret = v4l2_s_ext_ctrls(vfh, vfh->ctrl_handler, p); |
2d28b686 | 1392 | else if (vfd->ctrl_handler) |
ab892bac | 1393 | ret = v4l2_s_ext_ctrls(NULL, vfd->ctrl_handler, p); |
11bbc1ca | 1394 | else if (check_ext_ctrls(p, 0)) |
a399810c | 1395 | ret = ops->vidioc_s_ext_ctrls(file, fh, p); |
93d5a30b HV |
1396 | else |
1397 | ret = -EINVAL; | |
35ea11ff HV |
1398 | break; |
1399 | } | |
1400 | case VIDIOC_TRY_EXT_CTRLS: | |
1401 | { | |
1402 | struct v4l2_ext_controls *p = arg; | |
1403 | ||
1404 | p->error_idx = p->count; | |
2d28b686 HV |
1405 | if (!(vfh && vfh->ctrl_handler) && !vfd->ctrl_handler && |
1406 | !ops->vidioc_try_ext_ctrls) | |
35ea11ff HV |
1407 | break; |
1408 | v4l_print_ext_ctrls(cmd, vfd, p, 1); | |
2d28b686 HV |
1409 | if (vfh && vfh->ctrl_handler) |
1410 | ret = v4l2_try_ext_ctrls(vfh->ctrl_handler, p); | |
1411 | else if (vfd->ctrl_handler) | |
11bbc1ca HV |
1412 | ret = v4l2_try_ext_ctrls(vfd->ctrl_handler, p); |
1413 | else if (check_ext_ctrls(p, 0)) | |
a399810c | 1414 | ret = ops->vidioc_try_ext_ctrls(file, fh, p); |
93d5a30b HV |
1415 | else |
1416 | ret = -EINVAL; | |
35ea11ff HV |
1417 | break; |
1418 | } | |
1419 | case VIDIOC_QUERYMENU: | |
1420 | { | |
1421 | struct v4l2_querymenu *p = arg; | |
1422 | ||
2d28b686 HV |
1423 | if (vfh && vfh->ctrl_handler) |
1424 | ret = v4l2_querymenu(vfh->ctrl_handler, p); | |
1425 | else if (vfd->ctrl_handler) | |
11bbc1ca HV |
1426 | ret = v4l2_querymenu(vfd->ctrl_handler, p); |
1427 | else if (ops->vidioc_querymenu) | |
1428 | ret = ops->vidioc_querymenu(file, fh, p); | |
1429 | else | |
35ea11ff | 1430 | break; |
35ea11ff HV |
1431 | if (!ret) |
1432 | dbgarg(cmd, "id=0x%x, index=%d, name=%s\n", | |
1433 | p->id, p->index, p->name); | |
1434 | else | |
1435 | dbgarg(cmd, "id=0x%x, index=%d\n", | |
1436 | p->id, p->index); | |
1437 | break; | |
1438 | } | |
1439 | /* --- audio ---------------------------------------------- */ | |
1440 | case VIDIOC_ENUMAUDIO: | |
1441 | { | |
1442 | struct v4l2_audio *p = arg; | |
1443 | ||
a399810c | 1444 | if (!ops->vidioc_enumaudio) |
35ea11ff | 1445 | break; |
a399810c | 1446 | ret = ops->vidioc_enumaudio(file, fh, p); |
35ea11ff HV |
1447 | if (!ret) |
1448 | dbgarg(cmd, "index=%d, name=%s, capability=0x%x, " | |
1449 | "mode=0x%x\n", p->index, p->name, | |
1450 | p->capability, p->mode); | |
1451 | else | |
1452 | dbgarg(cmd, "index=%d\n", p->index); | |
1453 | break; | |
1454 | } | |
1455 | case VIDIOC_G_AUDIO: | |
1456 | { | |
1457 | struct v4l2_audio *p = arg; | |
35ea11ff | 1458 | |
a399810c | 1459 | if (!ops->vidioc_g_audio) |
35ea11ff HV |
1460 | break; |
1461 | ||
a399810c | 1462 | ret = ops->vidioc_g_audio(file, fh, p); |
35ea11ff HV |
1463 | if (!ret) |
1464 | dbgarg(cmd, "index=%d, name=%s, capability=0x%x, " | |
1465 | "mode=0x%x\n", p->index, | |
1466 | p->name, p->capability, p->mode); | |
1467 | else | |
1468 | dbgarg(cmd, "index=%d\n", p->index); | |
1469 | break; | |
1470 | } | |
1471 | case VIDIOC_S_AUDIO: | |
1472 | { | |
1473 | struct v4l2_audio *p = arg; | |
1474 | ||
a399810c | 1475 | if (!ops->vidioc_s_audio) |
35ea11ff | 1476 | break; |
93d5a30b HV |
1477 | if (ret_prio) { |
1478 | ret = ret_prio; | |
1479 | break; | |
1480 | } | |
35ea11ff HV |
1481 | dbgarg(cmd, "index=%d, name=%s, capability=0x%x, " |
1482 | "mode=0x%x\n", p->index, p->name, | |
1483 | p->capability, p->mode); | |
a399810c | 1484 | ret = ops->vidioc_s_audio(file, fh, p); |
35ea11ff HV |
1485 | break; |
1486 | } | |
1487 | case VIDIOC_ENUMAUDOUT: | |
1488 | { | |
1489 | struct v4l2_audioout *p = arg; | |
1490 | ||
a399810c | 1491 | if (!ops->vidioc_enumaudout) |
35ea11ff HV |
1492 | break; |
1493 | dbgarg(cmd, "Enum for index=%d\n", p->index); | |
a399810c | 1494 | ret = ops->vidioc_enumaudout(file, fh, p); |
35ea11ff HV |
1495 | if (!ret) |
1496 | dbgarg2("index=%d, name=%s, capability=%d, " | |
1497 | "mode=%d\n", p->index, p->name, | |
1498 | p->capability, p->mode); | |
1499 | break; | |
1500 | } | |
1501 | case VIDIOC_G_AUDOUT: | |
1502 | { | |
1503 | struct v4l2_audioout *p = arg; | |
1504 | ||
a399810c | 1505 | if (!ops->vidioc_g_audout) |
35ea11ff | 1506 | break; |
337f9d20 | 1507 | |
a399810c | 1508 | ret = ops->vidioc_g_audout(file, fh, p); |
35ea11ff HV |
1509 | if (!ret) |
1510 | dbgarg2("index=%d, name=%s, capability=%d, " | |
1511 | "mode=%d\n", p->index, p->name, | |
1512 | p->capability, p->mode); | |
1513 | break; | |
1514 | } | |
1515 | case VIDIOC_S_AUDOUT: | |
1516 | { | |
1517 | struct v4l2_audioout *p = arg; | |
1518 | ||
a399810c | 1519 | if (!ops->vidioc_s_audout) |
35ea11ff | 1520 | break; |
93d5a30b HV |
1521 | if (ret_prio) { |
1522 | ret = ret_prio; | |
1523 | break; | |
1524 | } | |
35ea11ff HV |
1525 | dbgarg(cmd, "index=%d, name=%s, capability=%d, " |
1526 | "mode=%d\n", p->index, p->name, | |
1527 | p->capability, p->mode); | |
1528 | ||
a399810c | 1529 | ret = ops->vidioc_s_audout(file, fh, p); |
35ea11ff HV |
1530 | break; |
1531 | } | |
1532 | case VIDIOC_G_MODULATOR: | |
1533 | { | |
1534 | struct v4l2_modulator *p = arg; | |
1535 | ||
a399810c | 1536 | if (!ops->vidioc_g_modulator) |
35ea11ff | 1537 | break; |
a399810c | 1538 | ret = ops->vidioc_g_modulator(file, fh, p); |
35ea11ff HV |
1539 | if (!ret) |
1540 | dbgarg(cmd, "index=%d, name=%s, " | |
1541 | "capability=%d, rangelow=%d," | |
1542 | " rangehigh=%d, txsubchans=%d\n", | |
1543 | p->index, p->name, p->capability, | |
1544 | p->rangelow, p->rangehigh, | |
1545 | p->txsubchans); | |
1546 | break; | |
1547 | } | |
1548 | case VIDIOC_S_MODULATOR: | |
1549 | { | |
1550 | struct v4l2_modulator *p = arg; | |
1551 | ||
a399810c | 1552 | if (!ops->vidioc_s_modulator) |
35ea11ff | 1553 | break; |
93d5a30b HV |
1554 | if (ret_prio) { |
1555 | ret = ret_prio; | |
1556 | break; | |
1557 | } | |
35ea11ff HV |
1558 | dbgarg(cmd, "index=%d, name=%s, capability=%d, " |
1559 | "rangelow=%d, rangehigh=%d, txsubchans=%d\n", | |
1560 | p->index, p->name, p->capability, p->rangelow, | |
1561 | p->rangehigh, p->txsubchans); | |
a399810c | 1562 | ret = ops->vidioc_s_modulator(file, fh, p); |
35ea11ff HV |
1563 | break; |
1564 | } | |
1565 | case VIDIOC_G_CROP: | |
1566 | { | |
1567 | struct v4l2_crop *p = arg; | |
1568 | ||
992efeff | 1569 | if (!ops->vidioc_g_crop && !ops->vidioc_g_selection) |
35ea11ff | 1570 | break; |
a56a18c3 | 1571 | |
35ea11ff | 1572 | dbgarg(cmd, "type=%s\n", prt_names(p->type, v4l2_type_names)); |
992efeff TS |
1573 | |
1574 | if (ops->vidioc_g_crop) { | |
1575 | ret = ops->vidioc_g_crop(file, fh, p); | |
1576 | } else { | |
1577 | /* simulate capture crop using selection api */ | |
1578 | struct v4l2_selection s = { | |
1579 | .type = p->type, | |
1580 | }; | |
1581 | ||
1582 | /* crop means compose for output devices */ | |
1583 | if (V4L2_TYPE_IS_OUTPUT(p->type)) | |
1584 | s.target = V4L2_SEL_TGT_COMPOSE_ACTIVE; | |
1585 | else | |
1586 | s.target = V4L2_SEL_TGT_CROP_ACTIVE; | |
1587 | ||
1588 | ret = ops->vidioc_g_selection(file, fh, &s); | |
1589 | ||
1590 | /* copying results to old structure on success */ | |
1591 | if (!ret) | |
1592 | p->c = s.r; | |
1593 | } | |
1594 | ||
35ea11ff HV |
1595 | if (!ret) |
1596 | dbgrect(vfd, "", &p->c); | |
1597 | break; | |
1598 | } | |
1599 | case VIDIOC_S_CROP: | |
1600 | { | |
1601 | struct v4l2_crop *p = arg; | |
1602 | ||
992efeff | 1603 | if (!ops->vidioc_s_crop && !ops->vidioc_s_selection) |
35ea11ff | 1604 | break; |
992efeff | 1605 | |
93d5a30b HV |
1606 | if (ret_prio) { |
1607 | ret = ret_prio; | |
1608 | break; | |
1609 | } | |
35ea11ff HV |
1610 | dbgarg(cmd, "type=%s\n", prt_names(p->type, v4l2_type_names)); |
1611 | dbgrect(vfd, "", &p->c); | |
992efeff TS |
1612 | |
1613 | if (ops->vidioc_s_crop) { | |
1614 | ret = ops->vidioc_s_crop(file, fh, p); | |
1615 | } else { | |
1616 | /* simulate capture crop using selection api */ | |
1617 | struct v4l2_selection s = { | |
1618 | .type = p->type, | |
1619 | .r = p->c, | |
1620 | }; | |
1621 | ||
1622 | /* crop means compose for output devices */ | |
1623 | if (V4L2_TYPE_IS_OUTPUT(p->type)) | |
1624 | s.target = V4L2_SEL_TGT_COMPOSE_ACTIVE; | |
1625 | else | |
1626 | s.target = V4L2_SEL_TGT_CROP_ACTIVE; | |
1627 | ||
1628 | ret = ops->vidioc_s_selection(file, fh, &s); | |
1629 | } | |
35ea11ff HV |
1630 | break; |
1631 | } | |
0e8caace TS |
1632 | case VIDIOC_G_SELECTION: |
1633 | { | |
1634 | struct v4l2_selection *p = arg; | |
1635 | ||
1636 | if (!ops->vidioc_g_selection) | |
1637 | break; | |
1638 | ||
1639 | dbgarg(cmd, "type=%s\n", prt_names(p->type, v4l2_type_names)); | |
1640 | ||
1641 | ret = ops->vidioc_g_selection(file, fh, p); | |
1642 | if (!ret) | |
1643 | dbgrect(vfd, "", &p->r); | |
1644 | break; | |
1645 | } | |
1646 | case VIDIOC_S_SELECTION: | |
1647 | { | |
1648 | struct v4l2_selection *p = arg; | |
1649 | ||
1650 | if (!ops->vidioc_s_selection) | |
1651 | break; | |
1652 | ||
1653 | if (ret_prio) { | |
1654 | ret = ret_prio; | |
1655 | break; | |
1656 | } | |
1657 | ||
1658 | dbgarg(cmd, "type=%s\n", prt_names(p->type, v4l2_type_names)); | |
1659 | dbgrect(vfd, "", &p->r); | |
1660 | ||
1661 | ret = ops->vidioc_s_selection(file, fh, p); | |
1662 | break; | |
1663 | } | |
35ea11ff HV |
1664 | case VIDIOC_CROPCAP: |
1665 | { | |
1666 | struct v4l2_cropcap *p = arg; | |
1667 | ||
1668 | /*FIXME: Should also show v4l2_fract pixelaspect */ | |
992efeff | 1669 | if (!ops->vidioc_cropcap && !ops->vidioc_g_selection) |
35ea11ff | 1670 | break; |
a56a18c3 | 1671 | |
35ea11ff | 1672 | dbgarg(cmd, "type=%s\n", prt_names(p->type, v4l2_type_names)); |
992efeff TS |
1673 | if (ops->vidioc_cropcap) { |
1674 | ret = ops->vidioc_cropcap(file, fh, p); | |
1675 | } else { | |
1676 | struct v4l2_selection s = { .type = p->type }; | |
1677 | ||
1678 | /* obtaining bounds */ | |
1679 | if (V4L2_TYPE_IS_OUTPUT(p->type)) | |
1680 | s.target = V4L2_SEL_TGT_COMPOSE_BOUNDS; | |
1681 | else | |
1682 | s.target = V4L2_SEL_TGT_CROP_BOUNDS; | |
1683 | ||
1684 | ret = ops->vidioc_g_selection(file, fh, &s); | |
1685 | if (ret) | |
1686 | break; | |
1687 | p->bounds = s.r; | |
1688 | ||
1689 | /* obtaining defrect */ | |
1690 | if (V4L2_TYPE_IS_OUTPUT(p->type)) | |
1691 | s.target = V4L2_SEL_TGT_COMPOSE_DEFAULT; | |
1692 | else | |
1693 | s.target = V4L2_SEL_TGT_CROP_DEFAULT; | |
1694 | ||
1695 | ret = ops->vidioc_g_selection(file, fh, &s); | |
1696 | if (ret) | |
1697 | break; | |
1698 | p->defrect = s.r; | |
1699 | ||
1700 | /* setting trivial pixelaspect */ | |
1701 | p->pixelaspect.numerator = 1; | |
1702 | p->pixelaspect.denominator = 1; | |
1703 | } | |
1704 | ||
35ea11ff HV |
1705 | if (!ret) { |
1706 | dbgrect(vfd, "bounds ", &p->bounds); | |
1707 | dbgrect(vfd, "defrect ", &p->defrect); | |
1708 | } | |
1709 | break; | |
1710 | } | |
1711 | case VIDIOC_G_JPEGCOMP: | |
1712 | { | |
1713 | struct v4l2_jpegcompression *p = arg; | |
1714 | ||
a399810c | 1715 | if (!ops->vidioc_g_jpegcomp) |
35ea11ff | 1716 | break; |
a56a18c3 | 1717 | |
a399810c | 1718 | ret = ops->vidioc_g_jpegcomp(file, fh, p); |
35ea11ff HV |
1719 | if (!ret) |
1720 | dbgarg(cmd, "quality=%d, APPn=%d, " | |
1721 | "APP_len=%d, COM_len=%d, " | |
1722 | "jpeg_markers=%d\n", | |
1723 | p->quality, p->APPn, p->APP_len, | |
1724 | p->COM_len, p->jpeg_markers); | |
1725 | break; | |
1726 | } | |
1727 | case VIDIOC_S_JPEGCOMP: | |
1728 | { | |
1729 | struct v4l2_jpegcompression *p = arg; | |
1730 | ||
a399810c | 1731 | if (!ops->vidioc_g_jpegcomp) |
35ea11ff | 1732 | break; |
93d5a30b HV |
1733 | if (ret_prio) { |
1734 | ret = ret_prio; | |
1735 | break; | |
1736 | } | |
35ea11ff HV |
1737 | dbgarg(cmd, "quality=%d, APPn=%d, APP_len=%d, " |
1738 | "COM_len=%d, jpeg_markers=%d\n", | |
1739 | p->quality, p->APPn, p->APP_len, | |
1740 | p->COM_len, p->jpeg_markers); | |
93d5a30b | 1741 | ret = ops->vidioc_s_jpegcomp(file, fh, p); |
35ea11ff HV |
1742 | break; |
1743 | } | |
1744 | case VIDIOC_G_ENC_INDEX: | |
1745 | { | |
1746 | struct v4l2_enc_idx *p = arg; | |
1747 | ||
a399810c | 1748 | if (!ops->vidioc_g_enc_index) |
35ea11ff | 1749 | break; |
a399810c | 1750 | ret = ops->vidioc_g_enc_index(file, fh, p); |
35ea11ff HV |
1751 | if (!ret) |
1752 | dbgarg(cmd, "entries=%d, entries_cap=%d\n", | |
1753 | p->entries, p->entries_cap); | |
1754 | break; | |
1755 | } | |
1756 | case VIDIOC_ENCODER_CMD: | |
1757 | { | |
1758 | struct v4l2_encoder_cmd *p = arg; | |
1759 | ||
a399810c | 1760 | if (!ops->vidioc_encoder_cmd) |
35ea11ff | 1761 | break; |
93d5a30b HV |
1762 | if (ret_prio) { |
1763 | ret = ret_prio; | |
1764 | break; | |
1765 | } | |
a399810c | 1766 | ret = ops->vidioc_encoder_cmd(file, fh, p); |
35ea11ff HV |
1767 | if (!ret) |
1768 | dbgarg(cmd, "cmd=%d, flags=%x\n", p->cmd, p->flags); | |
1769 | break; | |
1770 | } | |
1771 | case VIDIOC_TRY_ENCODER_CMD: | |
1772 | { | |
1773 | struct v4l2_encoder_cmd *p = arg; | |
1774 | ||
a399810c | 1775 | if (!ops->vidioc_try_encoder_cmd) |
35ea11ff | 1776 | break; |
a399810c | 1777 | ret = ops->vidioc_try_encoder_cmd(file, fh, p); |
35ea11ff HV |
1778 | if (!ret) |
1779 | dbgarg(cmd, "cmd=%d, flags=%x\n", p->cmd, p->flags); | |
1780 | break; | |
1781 | } | |
a45c0ad5 HV |
1782 | case VIDIOC_DECODER_CMD: |
1783 | { | |
1784 | struct v4l2_decoder_cmd *p = arg; | |
1785 | ||
1786 | if (!ops->vidioc_decoder_cmd) | |
1787 | break; | |
1788 | if (ret_prio) { | |
1789 | ret = ret_prio; | |
1790 | break; | |
1791 | } | |
1792 | ret = ops->vidioc_decoder_cmd(file, fh, p); | |
1793 | if (!ret) | |
1794 | dbgarg(cmd, "cmd=%d, flags=%x\n", p->cmd, p->flags); | |
1795 | break; | |
1796 | } | |
1797 | case VIDIOC_TRY_DECODER_CMD: | |
1798 | { | |
1799 | struct v4l2_decoder_cmd *p = arg; | |
1800 | ||
1801 | if (!ops->vidioc_try_decoder_cmd) | |
1802 | break; | |
1803 | ret = ops->vidioc_try_decoder_cmd(file, fh, p); | |
1804 | if (!ret) | |
1805 | dbgarg(cmd, "cmd=%d, flags=%x\n", p->cmd, p->flags); | |
1806 | break; | |
1807 | } | |
35ea11ff HV |
1808 | case VIDIOC_G_PARM: |
1809 | { | |
1810 | struct v4l2_streamparm *p = arg; | |
35ea11ff | 1811 | |
93d5a30b HV |
1812 | if (!ops->vidioc_g_parm && !vfd->current_norm) |
1813 | break; | |
a399810c | 1814 | if (ops->vidioc_g_parm) { |
34796bc0 TP |
1815 | ret = check_fmt(ops, p->type); |
1816 | if (ret) | |
1817 | break; | |
a399810c | 1818 | ret = ops->vidioc_g_parm(file, fh, p); |
35ea11ff | 1819 | } else { |
9bedc7f7 HV |
1820 | v4l2_std_id std = vfd->current_norm; |
1821 | ||
93d5a30b | 1822 | ret = -EINVAL; |
35ea11ff | 1823 | if (p->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) |
3f5e1824 | 1824 | break; |
35ea11ff | 1825 | |
35ea11ff | 1826 | ret = 0; |
9bedc7f7 HV |
1827 | if (ops->vidioc_g_std) |
1828 | ret = ops->vidioc_g_std(file, fh, &std); | |
9bedc7f7 HV |
1829 | if (ret == 0) |
1830 | v4l2_video_std_frame_period(std, | |
1831 | &p->parm.capture.timeperframe); | |
35ea11ff HV |
1832 | } |
1833 | ||
1834 | dbgarg(cmd, "type=%d\n", p->type); | |
1835 | break; | |
1836 | } | |
1837 | case VIDIOC_S_PARM: | |
1838 | { | |
1839 | struct v4l2_streamparm *p = arg; | |
1840 | ||
a399810c | 1841 | if (!ops->vidioc_s_parm) |
35ea11ff | 1842 | break; |
93d5a30b HV |
1843 | if (ret_prio) { |
1844 | ret = ret_prio; | |
1845 | break; | |
1846 | } | |
34796bc0 TP |
1847 | ret = check_fmt(ops, p->type); |
1848 | if (ret) | |
1849 | break; | |
1850 | ||
35ea11ff | 1851 | dbgarg(cmd, "type=%d\n", p->type); |
a399810c | 1852 | ret = ops->vidioc_s_parm(file, fh, p); |
35ea11ff HV |
1853 | break; |
1854 | } | |
1855 | case VIDIOC_G_TUNER: | |
1856 | { | |
1857 | struct v4l2_tuner *p = arg; | |
35ea11ff | 1858 | |
a399810c | 1859 | if (!ops->vidioc_g_tuner) |
35ea11ff HV |
1860 | break; |
1861 | ||
227690df HV |
1862 | p->type = (vfd->vfl_type == VFL_TYPE_RADIO) ? |
1863 | V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV; | |
a399810c | 1864 | ret = ops->vidioc_g_tuner(file, fh, p); |
35ea11ff HV |
1865 | if (!ret) |
1866 | dbgarg(cmd, "index=%d, name=%s, type=%d, " | |
1867 | "capability=0x%x, rangelow=%d, " | |
1868 | "rangehigh=%d, signal=%d, afc=%d, " | |
1869 | "rxsubchans=0x%x, audmode=%d\n", | |
1870 | p->index, p->name, p->type, | |
1871 | p->capability, p->rangelow, | |
1872 | p->rangehigh, p->signal, p->afc, | |
1873 | p->rxsubchans, p->audmode); | |
1874 | break; | |
1875 | } | |
1876 | case VIDIOC_S_TUNER: | |
1877 | { | |
1878 | struct v4l2_tuner *p = arg; | |
1879 | ||
a399810c | 1880 | if (!ops->vidioc_s_tuner) |
35ea11ff | 1881 | break; |
93d5a30b HV |
1882 | if (ret_prio) { |
1883 | ret = ret_prio; | |
1884 | break; | |
1885 | } | |
227690df HV |
1886 | p->type = (vfd->vfl_type == VFL_TYPE_RADIO) ? |
1887 | V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV; | |
35ea11ff HV |
1888 | dbgarg(cmd, "index=%d, name=%s, type=%d, " |
1889 | "capability=0x%x, rangelow=%d, " | |
1890 | "rangehigh=%d, signal=%d, afc=%d, " | |
1891 | "rxsubchans=0x%x, audmode=%d\n", | |
1892 | p->index, p->name, p->type, | |
1893 | p->capability, p->rangelow, | |
1894 | p->rangehigh, p->signal, p->afc, | |
1895 | p->rxsubchans, p->audmode); | |
a399810c | 1896 | ret = ops->vidioc_s_tuner(file, fh, p); |
35ea11ff HV |
1897 | break; |
1898 | } | |
1899 | case VIDIOC_G_FREQUENCY: | |
1900 | { | |
1901 | struct v4l2_frequency *p = arg; | |
1902 | ||
a399810c | 1903 | if (!ops->vidioc_g_frequency) |
35ea11ff HV |
1904 | break; |
1905 | ||
227690df HV |
1906 | p->type = (vfd->vfl_type == VFL_TYPE_RADIO) ? |
1907 | V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV; | |
a399810c | 1908 | ret = ops->vidioc_g_frequency(file, fh, p); |
35ea11ff HV |
1909 | if (!ret) |
1910 | dbgarg(cmd, "tuner=%d, type=%d, frequency=%d\n", | |
1911 | p->tuner, p->type, p->frequency); | |
1912 | break; | |
1913 | } | |
1914 | case VIDIOC_S_FREQUENCY: | |
1915 | { | |
1916 | struct v4l2_frequency *p = arg; | |
aa07eec5 | 1917 | enum v4l2_tuner_type type; |
35ea11ff | 1918 | |
a399810c | 1919 | if (!ops->vidioc_s_frequency) |
35ea11ff | 1920 | break; |
93d5a30b HV |
1921 | if (ret_prio) { |
1922 | ret = ret_prio; | |
1923 | break; | |
1924 | } | |
aa07eec5 HV |
1925 | type = (vfd->vfl_type == VFL_TYPE_RADIO) ? |
1926 | V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV; | |
35ea11ff HV |
1927 | dbgarg(cmd, "tuner=%d, type=%d, frequency=%d\n", |
1928 | p->tuner, p->type, p->frequency); | |
aa07eec5 HV |
1929 | if (p->type != type) |
1930 | ret = -EINVAL; | |
1931 | else | |
1932 | ret = ops->vidioc_s_frequency(file, fh, p); | |
35ea11ff HV |
1933 | break; |
1934 | } | |
1935 | case VIDIOC_G_SLICED_VBI_CAP: | |
1936 | { | |
1937 | struct v4l2_sliced_vbi_cap *p = arg; | |
35ea11ff | 1938 | |
a399810c | 1939 | if (!ops->vidioc_g_sliced_vbi_cap) |
35ea11ff | 1940 | break; |
19c96e4b TP |
1941 | |
1942 | /* Clear up to type, everything after type is zerod already */ | |
1943 | memset(p, 0, offsetof(struct v4l2_sliced_vbi_cap, type)); | |
1944 | ||
35ea11ff | 1945 | dbgarg(cmd, "type=%s\n", prt_names(p->type, v4l2_type_names)); |
a399810c | 1946 | ret = ops->vidioc_g_sliced_vbi_cap(file, fh, p); |
35ea11ff HV |
1947 | if (!ret) |
1948 | dbgarg2("service_set=%d\n", p->service_set); | |
1949 | break; | |
1950 | } | |
1951 | case VIDIOC_LOG_STATUS: | |
1952 | { | |
a399810c | 1953 | if (!ops->vidioc_log_status) |
35ea11ff | 1954 | break; |
e2ecb257 HV |
1955 | if (vfd->v4l2_dev) |
1956 | pr_info("%s: ================= START STATUS =================\n", | |
1957 | vfd->v4l2_dev->name); | |
a399810c | 1958 | ret = ops->vidioc_log_status(file, fh); |
e2ecb257 HV |
1959 | if (vfd->v4l2_dev) |
1960 | pr_info("%s: ================== END STATUS ==================\n", | |
1961 | vfd->v4l2_dev->name); | |
35ea11ff HV |
1962 | break; |
1963 | } | |
35ea11ff HV |
1964 | case VIDIOC_DBG_G_REGISTER: |
1965 | { | |
8ab75e3e | 1966 | #ifdef CONFIG_VIDEO_ADV_DEBUG |
aecde8b5 | 1967 | struct v4l2_dbg_register *p = arg; |
35ea11ff | 1968 | |
a1198ccf HV |
1969 | if (ops->vidioc_g_register) { |
1970 | if (!capable(CAP_SYS_ADMIN)) | |
1971 | ret = -EPERM; | |
1972 | else | |
1973 | ret = ops->vidioc_g_register(file, fh, p); | |
1974 | } | |
8ab75e3e | 1975 | #endif |
35ea11ff HV |
1976 | break; |
1977 | } | |
1978 | case VIDIOC_DBG_S_REGISTER: | |
1979 | { | |
8ab75e3e | 1980 | #ifdef CONFIG_VIDEO_ADV_DEBUG |
aecde8b5 | 1981 | struct v4l2_dbg_register *p = arg; |
35ea11ff | 1982 | |
a1198ccf HV |
1983 | if (ops->vidioc_s_register) { |
1984 | if (!capable(CAP_SYS_ADMIN)) | |
1985 | ret = -EPERM; | |
1986 | else | |
1987 | ret = ops->vidioc_s_register(file, fh, p); | |
1988 | } | |
8ab75e3e | 1989 | #endif |
35ea11ff HV |
1990 | break; |
1991 | } | |
aecde8b5 | 1992 | case VIDIOC_DBG_G_CHIP_IDENT: |
35ea11ff | 1993 | { |
aecde8b5 | 1994 | struct v4l2_dbg_chip_ident *p = arg; |
35ea11ff | 1995 | |
a399810c | 1996 | if (!ops->vidioc_g_chip_ident) |
35ea11ff | 1997 | break; |
80b36e0f HV |
1998 | p->ident = V4L2_IDENT_NONE; |
1999 | p->revision = 0; | |
a399810c | 2000 | ret = ops->vidioc_g_chip_ident(file, fh, p); |
35ea11ff HV |
2001 | if (!ret) |
2002 | dbgarg(cmd, "chip_ident=%u, revision=0x%x\n", p->ident, p->revision); | |
2003 | break; | |
2004 | } | |
35ea11ff HV |
2005 | case VIDIOC_S_HW_FREQ_SEEK: |
2006 | { | |
2007 | struct v4l2_hw_freq_seek *p = arg; | |
a6cf90a9 | 2008 | enum v4l2_tuner_type type; |
35ea11ff | 2009 | |
a399810c | 2010 | if (!ops->vidioc_s_hw_freq_seek) |
35ea11ff | 2011 | break; |
93d5a30b HV |
2012 | if (ret_prio) { |
2013 | ret = ret_prio; | |
2014 | break; | |
2015 | } | |
a6cf90a9 HV |
2016 | type = (vfd->vfl_type == VFL_TYPE_RADIO) ? |
2017 | V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV; | |
35ea11ff | 2018 | dbgarg(cmd, |
a6cf90a9 HV |
2019 | "tuner=%u, type=%u, seek_upward=%u, wrap_around=%u, spacing=%u\n", |
2020 | p->tuner, p->type, p->seek_upward, p->wrap_around, p->spacing); | |
2021 | if (p->type != type) | |
2022 | ret = -EINVAL; | |
2023 | else | |
2024 | ret = ops->vidioc_s_hw_freq_seek(file, fh, p); | |
a399810c HV |
2025 | break; |
2026 | } | |
74d83fa0 MCC |
2027 | case VIDIOC_ENUM_FRAMESIZES: |
2028 | { | |
2029 | struct v4l2_frmsizeenum *p = arg; | |
2030 | ||
2031 | if (!ops->vidioc_enum_framesizes) | |
2032 | break; | |
2033 | ||
74d83fa0 MCC |
2034 | ret = ops->vidioc_enum_framesizes(file, fh, p); |
2035 | dbgarg(cmd, | |
d1afe425 MCC |
2036 | "index=%d, pixelformat=%c%c%c%c, type=%d ", |
2037 | p->index, | |
2038 | (p->pixel_format & 0xff), | |
2039 | (p->pixel_format >> 8) & 0xff, | |
2040 | (p->pixel_format >> 16) & 0xff, | |
2041 | (p->pixel_format >> 24) & 0xff, | |
2042 | p->type); | |
74d83fa0 MCC |
2043 | switch (p->type) { |
2044 | case V4L2_FRMSIZE_TYPE_DISCRETE: | |
d33fbcbb | 2045 | dbgarg3("width = %d, height=%d\n", |
74d83fa0 MCC |
2046 | p->discrete.width, p->discrete.height); |
2047 | break; | |
2048 | case V4L2_FRMSIZE_TYPE_STEPWISE: | |
d33fbcbb | 2049 | dbgarg3("min %dx%d, max %dx%d, step %dx%d\n", |
74d83fa0 MCC |
2050 | p->stepwise.min_width, p->stepwise.min_height, |
2051 | p->stepwise.step_width, p->stepwise.step_height, | |
2052 | p->stepwise.max_width, p->stepwise.max_height); | |
2053 | break; | |
2054 | case V4L2_FRMSIZE_TYPE_CONTINUOUS: | |
d33fbcbb | 2055 | dbgarg3("continuous\n"); |
74d83fa0 MCC |
2056 | break; |
2057 | default: | |
d33fbcbb | 2058 | dbgarg3("- Unknown type!\n"); |
74d83fa0 MCC |
2059 | } |
2060 | ||
2061 | break; | |
2062 | } | |
2063 | case VIDIOC_ENUM_FRAMEINTERVALS: | |
2064 | { | |
2065 | struct v4l2_frmivalenum *p = arg; | |
2066 | ||
2067 | if (!ops->vidioc_enum_frameintervals) | |
2068 | break; | |
2069 | ||
74d83fa0 MCC |
2070 | ret = ops->vidioc_enum_frameintervals(file, fh, p); |
2071 | dbgarg(cmd, | |
2072 | "index=%d, pixelformat=%d, width=%d, height=%d, type=%d ", | |
2073 | p->index, p->pixel_format, | |
2074 | p->width, p->height, p->type); | |
2075 | switch (p->type) { | |
2076 | case V4L2_FRMIVAL_TYPE_DISCRETE: | |
2077 | dbgarg2("fps=%d/%d\n", | |
2078 | p->discrete.numerator, | |
2079 | p->discrete.denominator); | |
2080 | break; | |
2081 | case V4L2_FRMIVAL_TYPE_STEPWISE: | |
1958578d MCC |
2082 | dbgarg2("min=%d/%d, max=%d/%d, step=%d/%d\n", |
2083 | p->stepwise.min.numerator, | |
2084 | p->stepwise.min.denominator, | |
2085 | p->stepwise.max.numerator, | |
2086 | p->stepwise.max.denominator, | |
2087 | p->stepwise.step.numerator, | |
2088 | p->stepwise.step.denominator); | |
74d83fa0 MCC |
2089 | break; |
2090 | case V4L2_FRMIVAL_TYPE_CONTINUOUS: | |
2091 | dbgarg2("continuous\n"); | |
2092 | break; | |
2093 | default: | |
2094 | dbgarg2("- Unknown type!\n"); | |
2095 | } | |
2096 | break; | |
2097 | } | |
b6456c0c MK |
2098 | case VIDIOC_ENUM_DV_PRESETS: |
2099 | { | |
2100 | struct v4l2_dv_enum_preset *p = arg; | |
2101 | ||
2102 | if (!ops->vidioc_enum_dv_presets) | |
2103 | break; | |
2104 | ||
2105 | ret = ops->vidioc_enum_dv_presets(file, fh, p); | |
2106 | if (!ret) | |
2107 | dbgarg(cmd, | |
2108 | "index=%d, preset=%d, name=%s, width=%d," | |
2109 | " height=%d ", | |
2110 | p->index, p->preset, p->name, p->width, | |
2111 | p->height); | |
2112 | break; | |
2113 | } | |
2114 | case VIDIOC_S_DV_PRESET: | |
2115 | { | |
2116 | struct v4l2_dv_preset *p = arg; | |
2117 | ||
2118 | if (!ops->vidioc_s_dv_preset) | |
2119 | break; | |
93d5a30b HV |
2120 | if (ret_prio) { |
2121 | ret = ret_prio; | |
2122 | break; | |
2123 | } | |
b6456c0c MK |
2124 | |
2125 | dbgarg(cmd, "preset=%d\n", p->preset); | |
2126 | ret = ops->vidioc_s_dv_preset(file, fh, p); | |
2127 | break; | |
2128 | } | |
2129 | case VIDIOC_G_DV_PRESET: | |
2130 | { | |
2131 | struct v4l2_dv_preset *p = arg; | |
2132 | ||
2133 | if (!ops->vidioc_g_dv_preset) | |
2134 | break; | |
2135 | ||
2136 | ret = ops->vidioc_g_dv_preset(file, fh, p); | |
2137 | if (!ret) | |
2138 | dbgarg(cmd, "preset=%d\n", p->preset); | |
2139 | break; | |
2140 | } | |
2141 | case VIDIOC_QUERY_DV_PRESET: | |
2142 | { | |
2143 | struct v4l2_dv_preset *p = arg; | |
2144 | ||
2145 | if (!ops->vidioc_query_dv_preset) | |
2146 | break; | |
2147 | ||
2148 | ret = ops->vidioc_query_dv_preset(file, fh, p); | |
2149 | if (!ret) | |
2150 | dbgarg(cmd, "preset=%d\n", p->preset); | |
2151 | break; | |
2152 | } | |
2153 | case VIDIOC_S_DV_TIMINGS: | |
2154 | { | |
2155 | struct v4l2_dv_timings *p = arg; | |
2156 | ||
2157 | if (!ops->vidioc_s_dv_timings) | |
2158 | break; | |
93d5a30b HV |
2159 | if (ret_prio) { |
2160 | ret = ret_prio; | |
2161 | break; | |
2162 | } | |
b6456c0c MK |
2163 | |
2164 | switch (p->type) { | |
2165 | case V4L2_DV_BT_656_1120: | |
2166 | dbgarg2("bt-656/1120:interlaced=%d, pixelclock=%lld," | |
2167 | " width=%d, height=%d, polarities=%x," | |
2168 | " hfrontporch=%d, hsync=%d, hbackporch=%d," | |
2169 | " vfrontporch=%d, vsync=%d, vbackporch=%d," | |
2170 | " il_vfrontporch=%d, il_vsync=%d," | |
2171 | " il_vbackporch=%d\n", | |
2172 | p->bt.interlaced, p->bt.pixelclock, | |
2173 | p->bt.width, p->bt.height, p->bt.polarities, | |
2174 | p->bt.hfrontporch, p->bt.hsync, | |
2175 | p->bt.hbackporch, p->bt.vfrontporch, | |
2176 | p->bt.vsync, p->bt.vbackporch, | |
2177 | p->bt.il_vfrontporch, p->bt.il_vsync, | |
2178 | p->bt.il_vbackporch); | |
2179 | ret = ops->vidioc_s_dv_timings(file, fh, p); | |
2180 | break; | |
2181 | default: | |
2182 | dbgarg2("Unknown type %d!\n", p->type); | |
2183 | break; | |
2184 | } | |
2185 | break; | |
2186 | } | |
2187 | case VIDIOC_G_DV_TIMINGS: | |
2188 | { | |
2189 | struct v4l2_dv_timings *p = arg; | |
2190 | ||
2191 | if (!ops->vidioc_g_dv_timings) | |
2192 | break; | |
2193 | ||
2194 | ret = ops->vidioc_g_dv_timings(file, fh, p); | |
2195 | if (!ret) { | |
2196 | switch (p->type) { | |
2197 | case V4L2_DV_BT_656_1120: | |
2198 | dbgarg2("bt-656/1120:interlaced=%d," | |
2199 | " pixelclock=%lld," | |
2200 | " width=%d, height=%d, polarities=%x," | |
2201 | " hfrontporch=%d, hsync=%d," | |
2202 | " hbackporch=%d, vfrontporch=%d," | |
2203 | " vsync=%d, vbackporch=%d," | |
2204 | " il_vfrontporch=%d, il_vsync=%d," | |
2205 | " il_vbackporch=%d\n", | |
2206 | p->bt.interlaced, p->bt.pixelclock, | |
2207 | p->bt.width, p->bt.height, | |
2208 | p->bt.polarities, p->bt.hfrontporch, | |
2209 | p->bt.hsync, p->bt.hbackporch, | |
2210 | p->bt.vfrontporch, p->bt.vsync, | |
2211 | p->bt.vbackporch, p->bt.il_vfrontporch, | |
2212 | p->bt.il_vsync, p->bt.il_vbackporch); | |
2213 | break; | |
2214 | default: | |
2215 | dbgarg2("Unknown type %d!\n", p->type); | |
2216 | break; | |
2217 | } | |
2218 | } | |
2219 | break; | |
2220 | } | |
d3d7c963 SA |
2221 | case VIDIOC_DQEVENT: |
2222 | { | |
2223 | struct v4l2_event *ev = arg; | |
2224 | ||
2225 | if (!ops->vidioc_subscribe_event) | |
2226 | break; | |
2227 | ||
2228 | ret = v4l2_event_dequeue(fh, ev, file->f_flags & O_NONBLOCK); | |
2229 | if (ret < 0) { | |
2230 | dbgarg(cmd, "no pending events?"); | |
2231 | break; | |
2232 | } | |
2233 | dbgarg(cmd, | |
2234 | "pending=%d, type=0x%8.8x, sequence=%d, " | |
2235 | "timestamp=%lu.%9.9lu ", | |
2236 | ev->pending, ev->type, ev->sequence, | |
2237 | ev->timestamp.tv_sec, ev->timestamp.tv_nsec); | |
2238 | break; | |
2239 | } | |
2240 | case VIDIOC_SUBSCRIBE_EVENT: | |
2241 | { | |
2242 | struct v4l2_event_subscription *sub = arg; | |
2243 | ||
2244 | if (!ops->vidioc_subscribe_event) | |
2245 | break; | |
74d83fa0 | 2246 | |
d3d7c963 SA |
2247 | ret = ops->vidioc_subscribe_event(fh, sub); |
2248 | if (ret < 0) { | |
2249 | dbgarg(cmd, "failed, ret=%ld", ret); | |
2250 | break; | |
2251 | } | |
2252 | dbgarg(cmd, "type=0x%8.8x", sub->type); | |
2253 | break; | |
2254 | } | |
2255 | case VIDIOC_UNSUBSCRIBE_EVENT: | |
2256 | { | |
2257 | struct v4l2_event_subscription *sub = arg; | |
2258 | ||
2259 | if (!ops->vidioc_unsubscribe_event) | |
2260 | break; | |
2261 | ||
2262 | ret = ops->vidioc_unsubscribe_event(fh, sub); | |
2263 | if (ret < 0) { | |
2264 | dbgarg(cmd, "failed, ret=%ld", ret); | |
2265 | break; | |
2266 | } | |
2267 | dbgarg(cmd, "type=0x%8.8x", sub->type); | |
2268 | break; | |
2269 | } | |
2150158b GL |
2270 | case VIDIOC_CREATE_BUFS: |
2271 | { | |
2272 | struct v4l2_create_buffers *create = arg; | |
2273 | ||
2274 | if (!ops->vidioc_create_bufs) | |
2275 | break; | |
2276 | if (ret_prio) { | |
2277 | ret = ret_prio; | |
2278 | break; | |
2279 | } | |
2280 | ret = check_fmt(ops, create->format.type); | |
2281 | if (ret) | |
2282 | break; | |
2283 | ||
2284 | ret = ops->vidioc_create_bufs(file, fh, create); | |
2285 | ||
2286 | dbgarg(cmd, "count=%d @ %d\n", create->count, create->index); | |
2287 | break; | |
2288 | } | |
2289 | case VIDIOC_PREPARE_BUF: | |
2290 | { | |
2291 | struct v4l2_buffer *b = arg; | |
2292 | ||
2293 | if (!ops->vidioc_prepare_buf) | |
2294 | break; | |
2295 | ret = check_fmt(ops, b->type); | |
2296 | if (ret) | |
2297 | break; | |
2298 | ||
2299 | ret = ops->vidioc_prepare_buf(file, fh, b); | |
2300 | ||
2301 | dbgarg(cmd, "index=%d", b->index); | |
2302 | break; | |
2303 | } | |
a399810c | 2304 | default: |
a399810c HV |
2305 | if (!ops->vidioc_default) |
2306 | break; | |
93d5a30b | 2307 | ret = ops->vidioc_default(file, fh, ret_prio >= 0, cmd, arg); |
35ea11ff | 2308 | break; |
35ea11ff HV |
2309 | } /* switch */ |
2310 | ||
2311 | if (vfd->debug & V4L2_DEBUG_IOCTL_ARG) { | |
2312 | if (ret < 0) { | |
2313 | v4l_print_ioctl(vfd->name, cmd); | |
069b7479 | 2314 | printk(KERN_CONT " error %ld\n", ret); |
35ea11ff HV |
2315 | } |
2316 | } | |
2317 | ||
2318 | return ret; | |
2319 | } | |
2320 | ||
19c96e4b TP |
2321 | /* In some cases, only a few fields are used as input, i.e. when the app sets |
2322 | * "index" and then the driver fills in the rest of the structure for the thing | |
2323 | * with that index. We only need to copy up the first non-input field. */ | |
2324 | static unsigned long cmd_input_size(unsigned int cmd) | |
2325 | { | |
2326 | /* Size of structure up to and including 'field' */ | |
9f1a693f HV |
2327 | #define CMDINSIZE(cmd, type, field) \ |
2328 | case VIDIOC_##cmd: \ | |
2329 | return offsetof(struct v4l2_##type, field) + \ | |
2330 | sizeof(((struct v4l2_##type *)0)->field); | |
19c96e4b | 2331 | |
9f1a693f | 2332 | switch (cmd) { |
19c96e4b TP |
2333 | CMDINSIZE(ENUM_FMT, fmtdesc, type); |
2334 | CMDINSIZE(G_FMT, format, type); | |
d14e6d76 | 2335 | CMDINSIZE(QUERYBUF, buffer, length); |
19c96e4b TP |
2336 | CMDINSIZE(G_PARM, streamparm, type); |
2337 | CMDINSIZE(ENUMSTD, standard, index); | |
2338 | CMDINSIZE(ENUMINPUT, input, index); | |
2339 | CMDINSIZE(G_CTRL, control, id); | |
2340 | CMDINSIZE(G_TUNER, tuner, index); | |
2341 | CMDINSIZE(QUERYCTRL, queryctrl, id); | |
2342 | CMDINSIZE(QUERYMENU, querymenu, index); | |
2343 | CMDINSIZE(ENUMOUTPUT, output, index); | |
2344 | CMDINSIZE(G_MODULATOR, modulator, index); | |
2345 | CMDINSIZE(G_FREQUENCY, frequency, tuner); | |
2346 | CMDINSIZE(CROPCAP, cropcap, type); | |
2347 | CMDINSIZE(G_CROP, crop, type); | |
2348 | CMDINSIZE(ENUMAUDIO, audio, index); | |
2349 | CMDINSIZE(ENUMAUDOUT, audioout, index); | |
2350 | CMDINSIZE(ENCODER_CMD, encoder_cmd, flags); | |
2351 | CMDINSIZE(TRY_ENCODER_CMD, encoder_cmd, flags); | |
2352 | CMDINSIZE(G_SLICED_VBI_CAP, sliced_vbi_cap, type); | |
2353 | CMDINSIZE(ENUM_FRAMESIZES, frmsizeenum, pixel_format); | |
2354 | CMDINSIZE(ENUM_FRAMEINTERVALS, frmivalenum, height); | |
2355 | default: | |
2356 | return _IOC_SIZE(cmd); | |
2357 | } | |
2358 | } | |
2359 | ||
d14e6d76 PO |
2360 | static int check_array_args(unsigned int cmd, void *parg, size_t *array_size, |
2361 | void * __user *user_ptr, void ***kernel_ptr) | |
2362 | { | |
2363 | int ret = 0; | |
2364 | ||
2365 | switch (cmd) { | |
2366 | case VIDIOC_QUERYBUF: | |
2367 | case VIDIOC_QBUF: | |
2368 | case VIDIOC_DQBUF: { | |
2369 | struct v4l2_buffer *buf = parg; | |
2370 | ||
2371 | if (V4L2_TYPE_IS_MULTIPLANAR(buf->type) && buf->length > 0) { | |
2372 | if (buf->length > VIDEO_MAX_PLANES) { | |
2373 | ret = -EINVAL; | |
2374 | break; | |
2375 | } | |
2376 | *user_ptr = (void __user *)buf->m.planes; | |
2ef40370 | 2377 | *kernel_ptr = (void *)&buf->m.planes; |
d14e6d76 PO |
2378 | *array_size = sizeof(struct v4l2_plane) * buf->length; |
2379 | ret = 1; | |
2380 | } | |
2381 | break; | |
2382 | } | |
2383 | ||
2384 | case VIDIOC_S_EXT_CTRLS: | |
2385 | case VIDIOC_G_EXT_CTRLS: | |
2386 | case VIDIOC_TRY_EXT_CTRLS: { | |
2387 | struct v4l2_ext_controls *ctrls = parg; | |
2388 | ||
2389 | if (ctrls->count != 0) { | |
6c06108b DC |
2390 | if (ctrls->count > V4L2_CID_MAX_CTRLS) { |
2391 | ret = -EINVAL; | |
2392 | break; | |
2393 | } | |
d14e6d76 | 2394 | *user_ptr = (void __user *)ctrls->controls; |
2ef40370 | 2395 | *kernel_ptr = (void *)&ctrls->controls; |
d14e6d76 PO |
2396 | *array_size = sizeof(struct v4l2_ext_control) |
2397 | * ctrls->count; | |
2398 | ret = 1; | |
2399 | } | |
2400 | break; | |
2401 | } | |
2402 | } | |
2403 | ||
2404 | return ret; | |
2405 | } | |
2406 | ||
fc0a8079 LP |
2407 | long |
2408 | video_usercopy(struct file *file, unsigned int cmd, unsigned long arg, | |
2409 | v4l2_kioctl func) | |
35ea11ff HV |
2410 | { |
2411 | char sbuf[128]; | |
2412 | void *mbuf = NULL; | |
1d94aa36 | 2413 | void *parg = (void *)arg; |
069b7479 | 2414 | long err = -EINVAL; |
d14e6d76 PO |
2415 | bool has_array_args; |
2416 | size_t array_size = 0; | |
35ea11ff | 2417 | void __user *user_ptr = NULL; |
d14e6d76 | 2418 | void **kernel_ptr = NULL; |
35ea11ff | 2419 | |
35ea11ff | 2420 | /* Copy arguments into temp kernel buffer */ |
337f9d20 | 2421 | if (_IOC_DIR(cmd) != _IOC_NONE) { |
35ea11ff HV |
2422 | if (_IOC_SIZE(cmd) <= sizeof(sbuf)) { |
2423 | parg = sbuf; | |
2424 | } else { | |
2425 | /* too big to allocate from stack */ | |
2426 | mbuf = kmalloc(_IOC_SIZE(cmd), GFP_KERNEL); | |
2427 | if (NULL == mbuf) | |
2428 | return -ENOMEM; | |
2429 | parg = mbuf; | |
2430 | } | |
2431 | ||
2432 | err = -EFAULT; | |
19c96e4b TP |
2433 | if (_IOC_DIR(cmd) & _IOC_WRITE) { |
2434 | unsigned long n = cmd_input_size(cmd); | |
2435 | ||
2436 | if (copy_from_user(parg, (void __user *)arg, n)) | |
35ea11ff | 2437 | goto out; |
19c96e4b TP |
2438 | |
2439 | /* zero out anything we don't copy from userspace */ | |
2440 | if (n < _IOC_SIZE(cmd)) | |
2441 | memset((u8 *)parg + n, 0, _IOC_SIZE(cmd) - n); | |
337f9d20 TP |
2442 | } else { |
2443 | /* read-only ioctl */ | |
2444 | memset(parg, 0, _IOC_SIZE(cmd)); | |
19c96e4b | 2445 | } |
35ea11ff HV |
2446 | } |
2447 | ||
d14e6d76 PO |
2448 | err = check_array_args(cmd, parg, &array_size, &user_ptr, &kernel_ptr); |
2449 | if (err < 0) | |
2450 | goto out; | |
2451 | has_array_args = err; | |
35ea11ff | 2452 | |
d14e6d76 PO |
2453 | if (has_array_args) { |
2454 | /* | |
2455 | * When adding new types of array args, make sure that the | |
2456 | * parent argument to ioctl (which contains the pointer to the | |
2457 | * array) fits into sbuf (so that mbuf will still remain | |
2458 | * unused up to here). | |
2459 | */ | |
2460 | mbuf = kmalloc(array_size, GFP_KERNEL); | |
2461 | err = -ENOMEM; | |
2462 | if (NULL == mbuf) | |
2463 | goto out_array_args; | |
2464 | err = -EFAULT; | |
2465 | if (copy_from_user(mbuf, user_ptr, array_size)) | |
2466 | goto out_array_args; | |
2467 | *kernel_ptr = mbuf; | |
35ea11ff HV |
2468 | } |
2469 | ||
2470 | /* Handles IOCTL */ | |
fc0a8079 | 2471 | err = func(file, cmd, parg); |
35ea11ff | 2472 | if (err == -ENOIOCTLCMD) |
02bbb814 | 2473 | err = -ENOTTY; |
35ea11ff | 2474 | |
d14e6d76 PO |
2475 | if (has_array_args) { |
2476 | *kernel_ptr = user_ptr; | |
2477 | if (copy_to_user(user_ptr, mbuf, array_size)) | |
35ea11ff | 2478 | err = -EFAULT; |
d14e6d76 | 2479 | goto out_array_args; |
35ea11ff HV |
2480 | } |
2481 | if (err < 0) | |
2482 | goto out; | |
2483 | ||
d14e6d76 | 2484 | out_array_args: |
35ea11ff HV |
2485 | /* Copy results into user buffer */ |
2486 | switch (_IOC_DIR(cmd)) { | |
2487 | case _IOC_READ: | |
2488 | case (_IOC_WRITE | _IOC_READ): | |
2489 | if (copy_to_user((void __user *)arg, parg, _IOC_SIZE(cmd))) | |
2490 | err = -EFAULT; | |
2491 | break; | |
2492 | } | |
2493 | ||
2494 | out: | |
2495 | kfree(mbuf); | |
2496 | return err; | |
2497 | } | |
fc0a8079 LP |
2498 | EXPORT_SYMBOL(video_usercopy); |
2499 | ||
2500 | long video_ioctl2(struct file *file, | |
2501 | unsigned int cmd, unsigned long arg) | |
2502 | { | |
2503 | return video_usercopy(file, cmd, arg, __video_do_ioctl); | |
2504 | } | |
8a522c91 | 2505 | EXPORT_SYMBOL(video_ioctl2); |