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> |
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 | ||
35ea11ff HV |
58 | struct std_descr { |
59 | v4l2_std_id std; | |
60 | const char *descr; | |
61 | }; | |
62 | ||
63 | static const struct std_descr standards[] = { | |
64 | { V4L2_STD_NTSC, "NTSC" }, | |
65 | { V4L2_STD_NTSC_M, "NTSC-M" }, | |
66 | { V4L2_STD_NTSC_M_JP, "NTSC-M-JP" }, | |
67 | { V4L2_STD_NTSC_M_KR, "NTSC-M-KR" }, | |
68 | { V4L2_STD_NTSC_443, "NTSC-443" }, | |
69 | { V4L2_STD_PAL, "PAL" }, | |
70 | { V4L2_STD_PAL_BG, "PAL-BG" }, | |
71 | { V4L2_STD_PAL_B, "PAL-B" }, | |
72 | { V4L2_STD_PAL_B1, "PAL-B1" }, | |
73 | { V4L2_STD_PAL_G, "PAL-G" }, | |
74 | { V4L2_STD_PAL_H, "PAL-H" }, | |
75 | { V4L2_STD_PAL_I, "PAL-I" }, | |
76 | { V4L2_STD_PAL_DK, "PAL-DK" }, | |
77 | { V4L2_STD_PAL_D, "PAL-D" }, | |
78 | { V4L2_STD_PAL_D1, "PAL-D1" }, | |
79 | { V4L2_STD_PAL_K, "PAL-K" }, | |
80 | { V4L2_STD_PAL_M, "PAL-M" }, | |
81 | { V4L2_STD_PAL_N, "PAL-N" }, | |
82 | { V4L2_STD_PAL_Nc, "PAL-Nc" }, | |
83 | { V4L2_STD_PAL_60, "PAL-60" }, | |
84 | { V4L2_STD_SECAM, "SECAM" }, | |
85 | { V4L2_STD_SECAM_B, "SECAM-B" }, | |
86 | { V4L2_STD_SECAM_G, "SECAM-G" }, | |
87 | { V4L2_STD_SECAM_H, "SECAM-H" }, | |
88 | { V4L2_STD_SECAM_DK, "SECAM-DK" }, | |
89 | { V4L2_STD_SECAM_D, "SECAM-D" }, | |
90 | { V4L2_STD_SECAM_K, "SECAM-K" }, | |
91 | { V4L2_STD_SECAM_K1, "SECAM-K1" }, | |
92 | { V4L2_STD_SECAM_L, "SECAM-L" }, | |
93 | { V4L2_STD_SECAM_LC, "SECAM-Lc" }, | |
94 | { 0, "Unknown" } | |
95 | }; | |
96 | ||
97 | /* video4linux standard ID conversion to standard name | |
98 | */ | |
99 | const char *v4l2_norm_to_name(v4l2_std_id id) | |
100 | { | |
101 | u32 myid = id; | |
102 | int i; | |
103 | ||
104 | /* HACK: ppc32 architecture doesn't have __ucmpdi2 function to handle | |
105 | 64 bit comparations. So, on that architecture, with some gcc | |
106 | variants, compilation fails. Currently, the max value is 30bit wide. | |
107 | */ | |
108 | BUG_ON(myid != id); | |
109 | ||
110 | for (i = 0; standards[i].std; i++) | |
111 | if (myid == standards[i].std) | |
112 | break; | |
113 | return standards[i].descr; | |
114 | } | |
115 | EXPORT_SYMBOL(v4l2_norm_to_name); | |
116 | ||
51f0b8d5 TP |
117 | /* Returns frame period for the given standard */ |
118 | void v4l2_video_std_frame_period(int id, struct v4l2_fract *frameperiod) | |
119 | { | |
120 | if (id & V4L2_STD_525_60) { | |
121 | frameperiod->numerator = 1001; | |
122 | frameperiod->denominator = 30000; | |
123 | } else { | |
124 | frameperiod->numerator = 1; | |
125 | frameperiod->denominator = 25; | |
126 | } | |
127 | } | |
128 | EXPORT_SYMBOL(v4l2_video_std_frame_period); | |
129 | ||
35ea11ff HV |
130 | /* Fill in the fields of a v4l2_standard structure according to the |
131 | 'id' and 'transmission' parameters. Returns negative on error. */ | |
132 | int v4l2_video_std_construct(struct v4l2_standard *vs, | |
133 | int id, const char *name) | |
134 | { | |
51f0b8d5 TP |
135 | vs->id = id; |
136 | v4l2_video_std_frame_period(id, &vs->frameperiod); | |
137 | vs->framelines = (id & V4L2_STD_525_60) ? 525 : 625; | |
35ea11ff HV |
138 | strlcpy(vs->name, name, sizeof(vs->name)); |
139 | return 0; | |
140 | } | |
141 | EXPORT_SYMBOL(v4l2_video_std_construct); | |
142 | ||
143 | /* ----------------------------------------------------------------- */ | |
144 | /* some arrays for pretty-printing debug messages of enum types */ | |
145 | ||
146 | const char *v4l2_field_names[] = { | |
147 | [V4L2_FIELD_ANY] = "any", | |
148 | [V4L2_FIELD_NONE] = "none", | |
149 | [V4L2_FIELD_TOP] = "top", | |
150 | [V4L2_FIELD_BOTTOM] = "bottom", | |
151 | [V4L2_FIELD_INTERLACED] = "interlaced", | |
152 | [V4L2_FIELD_SEQ_TB] = "seq-tb", | |
153 | [V4L2_FIELD_SEQ_BT] = "seq-bt", | |
154 | [V4L2_FIELD_ALTERNATE] = "alternate", | |
155 | [V4L2_FIELD_INTERLACED_TB] = "interlaced-tb", | |
156 | [V4L2_FIELD_INTERLACED_BT] = "interlaced-bt", | |
157 | }; | |
158 | EXPORT_SYMBOL(v4l2_field_names); | |
159 | ||
160 | const char *v4l2_type_names[] = { | |
161 | [V4L2_BUF_TYPE_VIDEO_CAPTURE] = "vid-cap", | |
162 | [V4L2_BUF_TYPE_VIDEO_OVERLAY] = "vid-overlay", | |
163 | [V4L2_BUF_TYPE_VIDEO_OUTPUT] = "vid-out", | |
164 | [V4L2_BUF_TYPE_VBI_CAPTURE] = "vbi-cap", | |
165 | [V4L2_BUF_TYPE_VBI_OUTPUT] = "vbi-out", | |
166 | [V4L2_BUF_TYPE_SLICED_VBI_CAPTURE] = "sliced-vbi-cap", | |
167 | [V4L2_BUF_TYPE_SLICED_VBI_OUTPUT] = "sliced-vbi-out", | |
168 | [V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY] = "vid-out-overlay", | |
f8f3914c PO |
169 | [V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE] = "vid-cap-mplane", |
170 | [V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE] = "vid-out-mplane", | |
35ea11ff HV |
171 | }; |
172 | EXPORT_SYMBOL(v4l2_type_names); | |
173 | ||
174 | static const char *v4l2_memory_names[] = { | |
175 | [V4L2_MEMORY_MMAP] = "mmap", | |
176 | [V4L2_MEMORY_USERPTR] = "userptr", | |
177 | [V4L2_MEMORY_OVERLAY] = "overlay", | |
178 | }; | |
179 | ||
180 | #define prt_names(a, arr) ((((a) >= 0) && ((a) < ARRAY_SIZE(arr))) ? \ | |
181 | arr[a] : "unknown") | |
182 | ||
183 | /* ------------------------------------------------------------------ */ | |
184 | /* debug help functions */ | |
8ab75e3e HV |
185 | |
186 | struct v4l2_ioctl_info { | |
187 | unsigned int ioctl; | |
48ea0be0 | 188 | u16 flags; |
8ab75e3e HV |
189 | const char * const name; |
190 | }; | |
191 | ||
48ea0be0 HV |
192 | /* This control can be valid if the filehandle passes a control handler. */ |
193 | #define INFO_FL_CTRL (1 << 1) | |
194 | ||
195 | #define IOCTL_INFO(_ioctl, _flags) [_IOC_NR(_ioctl)] = { \ | |
196 | .ioctl = _ioctl, \ | |
197 | .flags = _flags, \ | |
198 | .name = #_ioctl, \ | |
8ab75e3e HV |
199 | } |
200 | ||
201 | static struct v4l2_ioctl_info v4l2_ioctls[] = { | |
48ea0be0 HV |
202 | IOCTL_INFO(VIDIOC_QUERYCAP, 0), |
203 | IOCTL_INFO(VIDIOC_ENUM_FMT, 0), | |
204 | IOCTL_INFO(VIDIOC_G_FMT, 0), | |
205 | IOCTL_INFO(VIDIOC_S_FMT, 0), | |
206 | IOCTL_INFO(VIDIOC_REQBUFS, 0), | |
207 | IOCTL_INFO(VIDIOC_QUERYBUF, 0), | |
208 | IOCTL_INFO(VIDIOC_G_FBUF, 0), | |
209 | IOCTL_INFO(VIDIOC_S_FBUF, 0), | |
210 | IOCTL_INFO(VIDIOC_OVERLAY, 0), | |
211 | IOCTL_INFO(VIDIOC_QBUF, 0), | |
212 | IOCTL_INFO(VIDIOC_DQBUF, 0), | |
213 | IOCTL_INFO(VIDIOC_STREAMON, 0), | |
214 | IOCTL_INFO(VIDIOC_STREAMOFF, 0), | |
215 | IOCTL_INFO(VIDIOC_G_PARM, 0), | |
216 | IOCTL_INFO(VIDIOC_S_PARM, 0), | |
217 | IOCTL_INFO(VIDIOC_G_STD, 0), | |
218 | IOCTL_INFO(VIDIOC_S_STD, 0), | |
219 | IOCTL_INFO(VIDIOC_ENUMSTD, 0), | |
220 | IOCTL_INFO(VIDIOC_ENUMINPUT, 0), | |
221 | IOCTL_INFO(VIDIOC_G_CTRL, INFO_FL_CTRL), | |
222 | IOCTL_INFO(VIDIOC_S_CTRL, INFO_FL_CTRL), | |
223 | IOCTL_INFO(VIDIOC_G_TUNER, 0), | |
224 | IOCTL_INFO(VIDIOC_S_TUNER, 0), | |
225 | IOCTL_INFO(VIDIOC_G_AUDIO, 0), | |
226 | IOCTL_INFO(VIDIOC_S_AUDIO, 0), | |
227 | IOCTL_INFO(VIDIOC_QUERYCTRL, INFO_FL_CTRL), | |
228 | IOCTL_INFO(VIDIOC_QUERYMENU, INFO_FL_CTRL), | |
229 | IOCTL_INFO(VIDIOC_G_INPUT, 0), | |
230 | IOCTL_INFO(VIDIOC_S_INPUT, 0), | |
231 | IOCTL_INFO(VIDIOC_G_OUTPUT, 0), | |
232 | IOCTL_INFO(VIDIOC_S_OUTPUT, 0), | |
233 | IOCTL_INFO(VIDIOC_ENUMOUTPUT, 0), | |
234 | IOCTL_INFO(VIDIOC_G_AUDOUT, 0), | |
235 | IOCTL_INFO(VIDIOC_S_AUDOUT, 0), | |
236 | IOCTL_INFO(VIDIOC_G_MODULATOR, 0), | |
237 | IOCTL_INFO(VIDIOC_S_MODULATOR, 0), | |
238 | IOCTL_INFO(VIDIOC_G_FREQUENCY, 0), | |
239 | IOCTL_INFO(VIDIOC_S_FREQUENCY, 0), | |
240 | IOCTL_INFO(VIDIOC_CROPCAP, 0), | |
241 | IOCTL_INFO(VIDIOC_G_CROP, 0), | |
242 | IOCTL_INFO(VIDIOC_S_CROP, 0), | |
243 | IOCTL_INFO(VIDIOC_G_SELECTION, 0), | |
244 | IOCTL_INFO(VIDIOC_S_SELECTION, 0), | |
245 | IOCTL_INFO(VIDIOC_G_JPEGCOMP, 0), | |
246 | IOCTL_INFO(VIDIOC_S_JPEGCOMP, 0), | |
247 | IOCTL_INFO(VIDIOC_QUERYSTD, 0), | |
248 | IOCTL_INFO(VIDIOC_TRY_FMT, 0), | |
249 | IOCTL_INFO(VIDIOC_ENUMAUDIO, 0), | |
250 | IOCTL_INFO(VIDIOC_ENUMAUDOUT, 0), | |
251 | IOCTL_INFO(VIDIOC_G_PRIORITY, 0), | |
252 | IOCTL_INFO(VIDIOC_S_PRIORITY, 0), | |
253 | IOCTL_INFO(VIDIOC_G_SLICED_VBI_CAP, 0), | |
254 | IOCTL_INFO(VIDIOC_LOG_STATUS, 0), | |
255 | IOCTL_INFO(VIDIOC_G_EXT_CTRLS, INFO_FL_CTRL), | |
256 | IOCTL_INFO(VIDIOC_S_EXT_CTRLS, INFO_FL_CTRL), | |
257 | IOCTL_INFO(VIDIOC_TRY_EXT_CTRLS, 0), | |
258 | IOCTL_INFO(VIDIOC_ENUM_FRAMESIZES, 0), | |
259 | IOCTL_INFO(VIDIOC_ENUM_FRAMEINTERVALS, 0), | |
260 | IOCTL_INFO(VIDIOC_G_ENC_INDEX, 0), | |
261 | IOCTL_INFO(VIDIOC_ENCODER_CMD, 0), | |
262 | IOCTL_INFO(VIDIOC_TRY_ENCODER_CMD, 0), | |
263 | IOCTL_INFO(VIDIOC_DECODER_CMD, 0), | |
264 | IOCTL_INFO(VIDIOC_TRY_DECODER_CMD, 0), | |
265 | IOCTL_INFO(VIDIOC_DBG_S_REGISTER, 0), | |
266 | IOCTL_INFO(VIDIOC_DBG_G_REGISTER, 0), | |
267 | IOCTL_INFO(VIDIOC_DBG_G_CHIP_IDENT, 0), | |
268 | IOCTL_INFO(VIDIOC_S_HW_FREQ_SEEK, 0), | |
269 | IOCTL_INFO(VIDIOC_ENUM_DV_PRESETS, 0), | |
270 | IOCTL_INFO(VIDIOC_S_DV_PRESET, 0), | |
271 | IOCTL_INFO(VIDIOC_G_DV_PRESET, 0), | |
272 | IOCTL_INFO(VIDIOC_QUERY_DV_PRESET, 0), | |
273 | IOCTL_INFO(VIDIOC_S_DV_TIMINGS, 0), | |
274 | IOCTL_INFO(VIDIOC_G_DV_TIMINGS, 0), | |
275 | IOCTL_INFO(VIDIOC_DQEVENT, 0), | |
276 | IOCTL_INFO(VIDIOC_SUBSCRIBE_EVENT, 0), | |
277 | IOCTL_INFO(VIDIOC_UNSUBSCRIBE_EVENT, 0), | |
278 | IOCTL_INFO(VIDIOC_CREATE_BUFS, 0), | |
279 | IOCTL_INFO(VIDIOC_PREPARE_BUF, 0), | |
35ea11ff HV |
280 | }; |
281 | #define V4L2_IOCTLS ARRAY_SIZE(v4l2_ioctls) | |
282 | ||
8ab75e3e HV |
283 | bool v4l2_is_known_ioctl(unsigned int cmd) |
284 | { | |
285 | if (_IOC_NR(cmd) >= V4L2_IOCTLS) | |
286 | return false; | |
287 | return v4l2_ioctls[_IOC_NR(cmd)].ioctl == cmd; | |
288 | } | |
289 | ||
35ea11ff HV |
290 | /* Common ioctl debug function. This function can be used by |
291 | external ioctl messages as well as internal V4L ioctl */ | |
292 | void v4l_printk_ioctl(unsigned int cmd) | |
293 | { | |
294 | char *dir, *type; | |
295 | ||
296 | switch (_IOC_TYPE(cmd)) { | |
297 | case 'd': | |
78a3b4db HV |
298 | type = "v4l2_int"; |
299 | break; | |
35ea11ff HV |
300 | case 'V': |
301 | if (_IOC_NR(cmd) >= V4L2_IOCTLS) { | |
302 | type = "v4l2"; | |
303 | break; | |
304 | } | |
8ab75e3e | 305 | printk("%s", v4l2_ioctls[_IOC_NR(cmd)].name); |
35ea11ff HV |
306 | return; |
307 | default: | |
308 | type = "unknown"; | |
309 | } | |
310 | ||
311 | switch (_IOC_DIR(cmd)) { | |
312 | case _IOC_NONE: dir = "--"; break; | |
313 | case _IOC_READ: dir = "r-"; break; | |
314 | case _IOC_WRITE: dir = "-w"; break; | |
315 | case _IOC_READ | _IOC_WRITE: dir = "rw"; break; | |
316 | default: dir = "*ERR*"; break; | |
317 | } | |
318 | printk("%s ioctl '%c', dir=%s, #%d (0x%08x)", | |
319 | type, _IOC_TYPE(cmd), dir, _IOC_NR(cmd), cmd); | |
320 | } | |
321 | EXPORT_SYMBOL(v4l_printk_ioctl); | |
322 | ||
35ea11ff HV |
323 | static void dbgbuf(unsigned int cmd, struct video_device *vfd, |
324 | struct v4l2_buffer *p) | |
325 | { | |
326 | struct v4l2_timecode *tc = &p->timecode; | |
d14e6d76 PO |
327 | struct v4l2_plane *plane; |
328 | int i; | |
35ea11ff HV |
329 | |
330 | dbgarg(cmd, "%02ld:%02d:%02d.%08ld index=%d, type=%s, " | |
d14e6d76 | 331 | "flags=0x%08d, field=%0d, sequence=%d, memory=%s\n", |
35ea11ff HV |
332 | p->timestamp.tv_sec / 3600, |
333 | (int)(p->timestamp.tv_sec / 60) % 60, | |
334 | (int)(p->timestamp.tv_sec % 60), | |
b045979d | 335 | (long)p->timestamp.tv_usec, |
35ea11ff HV |
336 | p->index, |
337 | prt_names(p->type, v4l2_type_names), | |
d14e6d76 PO |
338 | p->flags, p->field, p->sequence, |
339 | prt_names(p->memory, v4l2_memory_names)); | |
340 | ||
341 | if (V4L2_TYPE_IS_MULTIPLANAR(p->type) && p->m.planes) { | |
342 | for (i = 0; i < p->length; ++i) { | |
343 | plane = &p->m.planes[i]; | |
344 | dbgarg2("plane %d: bytesused=%d, data_offset=0x%08x " | |
345 | "offset/userptr=0x%08lx, length=%d\n", | |
346 | i, plane->bytesused, plane->data_offset, | |
347 | plane->m.userptr, plane->length); | |
348 | } | |
349 | } else { | |
350 | dbgarg2("bytesused=%d, offset/userptr=0x%08lx, length=%d\n", | |
351 | p->bytesused, p->m.userptr, p->length); | |
352 | } | |
353 | ||
35ea11ff HV |
354 | dbgarg2("timecode=%02d:%02d:%02d type=%d, " |
355 | "flags=0x%08d, frames=%d, userbits=0x%08x\n", | |
356 | tc->hours, tc->minutes, tc->seconds, | |
357 | tc->type, tc->flags, tc->frames, *(__u32 *)tc->userbits); | |
358 | } | |
359 | ||
360 | static inline void dbgrect(struct video_device *vfd, char *s, | |
361 | struct v4l2_rect *r) | |
362 | { | |
363 | dbgarg2("%sRect start at %dx%d, size=%dx%d\n", s, r->left, r->top, | |
364 | r->width, r->height); | |
365 | }; | |
366 | ||
367 | static inline void v4l_print_pix_fmt(struct video_device *vfd, | |
368 | struct v4l2_pix_format *fmt) | |
369 | { | |
370 | dbgarg2("width=%d, height=%d, format=%c%c%c%c, field=%s, " | |
371 | "bytesperline=%d sizeimage=%d, colorspace=%d\n", | |
372 | fmt->width, fmt->height, | |
373 | (fmt->pixelformat & 0xff), | |
374 | (fmt->pixelformat >> 8) & 0xff, | |
375 | (fmt->pixelformat >> 16) & 0xff, | |
376 | (fmt->pixelformat >> 24) & 0xff, | |
377 | prt_names(fmt->field, v4l2_field_names), | |
378 | fmt->bytesperline, fmt->sizeimage, fmt->colorspace); | |
379 | }; | |
380 | ||
d14e6d76 PO |
381 | static inline void v4l_print_pix_fmt_mplane(struct video_device *vfd, |
382 | struct v4l2_pix_format_mplane *fmt) | |
383 | { | |
384 | int i; | |
385 | ||
386 | dbgarg2("width=%d, height=%d, format=%c%c%c%c, field=%s, " | |
387 | "colorspace=%d, num_planes=%d\n", | |
388 | fmt->width, fmt->height, | |
389 | (fmt->pixelformat & 0xff), | |
390 | (fmt->pixelformat >> 8) & 0xff, | |
391 | (fmt->pixelformat >> 16) & 0xff, | |
392 | (fmt->pixelformat >> 24) & 0xff, | |
393 | prt_names(fmt->field, v4l2_field_names), | |
394 | fmt->colorspace, fmt->num_planes); | |
395 | ||
396 | for (i = 0; i < fmt->num_planes; ++i) | |
397 | dbgarg2("plane %d: bytesperline=%d sizeimage=%d\n", i, | |
398 | fmt->plane_fmt[i].bytesperline, | |
399 | fmt->plane_fmt[i].sizeimage); | |
400 | } | |
401 | ||
35ea11ff HV |
402 | static inline void v4l_print_ext_ctrls(unsigned int cmd, |
403 | struct video_device *vfd, struct v4l2_ext_controls *c, int show_vals) | |
404 | { | |
405 | __u32 i; | |
406 | ||
407 | if (!(vfd->debug & V4L2_DEBUG_IOCTL_ARG)) | |
408 | return; | |
409 | dbgarg(cmd, ""); | |
410 | printk(KERN_CONT "class=0x%x", c->ctrl_class); | |
411 | for (i = 0; i < c->count; i++) { | |
6b5a9492 | 412 | if (show_vals && !c->controls[i].size) |
35ea11ff HV |
413 | printk(KERN_CONT " id/val=0x%x/0x%x", |
414 | c->controls[i].id, c->controls[i].value); | |
415 | else | |
6b5a9492 HV |
416 | printk(KERN_CONT " id=0x%x,size=%u", |
417 | c->controls[i].id, c->controls[i].size); | |
35ea11ff HV |
418 | } |
419 | printk(KERN_CONT "\n"); | |
420 | }; | |
421 | ||
422 | static inline int check_ext_ctrls(struct v4l2_ext_controls *c, int allow_priv) | |
423 | { | |
424 | __u32 i; | |
425 | ||
426 | /* zero the reserved fields */ | |
427 | c->reserved[0] = c->reserved[1] = 0; | |
6b5a9492 | 428 | for (i = 0; i < c->count; i++) |
35ea11ff | 429 | c->controls[i].reserved2[0] = 0; |
6b5a9492 | 430 | |
35ea11ff HV |
431 | /* V4L2_CID_PRIVATE_BASE cannot be used as control class |
432 | when using extended controls. | |
433 | Only when passed in through VIDIOC_G_CTRL and VIDIOC_S_CTRL | |
434 | is it allowed for backwards compatibility. | |
435 | */ | |
436 | if (!allow_priv && c->ctrl_class == V4L2_CID_PRIVATE_BASE) | |
437 | return 0; | |
438 | /* Check that all controls are from the same control class. */ | |
439 | for (i = 0; i < c->count; i++) { | |
440 | if (V4L2_CTRL_ID2CLASS(c->controls[i].id) != c->ctrl_class) { | |
441 | c->error_idx = i; | |
442 | return 0; | |
443 | } | |
444 | } | |
445 | return 1; | |
446 | } | |
447 | ||
a399810c | 448 | static int check_fmt(const struct v4l2_ioctl_ops *ops, enum v4l2_buf_type type) |
35ea11ff | 449 | { |
a399810c HV |
450 | if (ops == NULL) |
451 | return -EINVAL; | |
452 | ||
35ea11ff HV |
453 | switch (type) { |
454 | case V4L2_BUF_TYPE_VIDEO_CAPTURE: | |
d14e6d76 PO |
455 | if (ops->vidioc_g_fmt_vid_cap || |
456 | ops->vidioc_g_fmt_vid_cap_mplane) | |
457 | return 0; | |
458 | break; | |
459 | case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE: | |
460 | if (ops->vidioc_g_fmt_vid_cap_mplane) | |
35ea11ff HV |
461 | return 0; |
462 | break; | |
463 | case V4L2_BUF_TYPE_VIDEO_OVERLAY: | |
1175d613 | 464 | if (ops->vidioc_g_fmt_vid_overlay) |
35ea11ff HV |
465 | return 0; |
466 | break; | |
467 | case V4L2_BUF_TYPE_VIDEO_OUTPUT: | |
d14e6d76 PO |
468 | if (ops->vidioc_g_fmt_vid_out || |
469 | ops->vidioc_g_fmt_vid_out_mplane) | |
470 | return 0; | |
471 | break; | |
472 | case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE: | |
473 | if (ops->vidioc_g_fmt_vid_out_mplane) | |
35ea11ff HV |
474 | return 0; |
475 | break; | |
476 | case V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY: | |
1175d613 | 477 | if (ops->vidioc_g_fmt_vid_out_overlay) |
35ea11ff HV |
478 | return 0; |
479 | break; | |
480 | case V4L2_BUF_TYPE_VBI_CAPTURE: | |
1175d613 | 481 | if (ops->vidioc_g_fmt_vbi_cap) |
35ea11ff HV |
482 | return 0; |
483 | break; | |
484 | case V4L2_BUF_TYPE_VBI_OUTPUT: | |
1175d613 | 485 | if (ops->vidioc_g_fmt_vbi_out) |
35ea11ff HV |
486 | return 0; |
487 | break; | |
488 | case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE: | |
1175d613 | 489 | if (ops->vidioc_g_fmt_sliced_vbi_cap) |
35ea11ff HV |
490 | return 0; |
491 | break; | |
492 | case V4L2_BUF_TYPE_SLICED_VBI_OUTPUT: | |
1175d613 | 493 | if (ops->vidioc_g_fmt_sliced_vbi_out) |
35ea11ff HV |
494 | return 0; |
495 | break; | |
496 | case V4L2_BUF_TYPE_PRIVATE: | |
1175d613 | 497 | if (ops->vidioc_g_fmt_type_private) |
35ea11ff HV |
498 | return 0; |
499 | break; | |
500 | } | |
501 | return -EINVAL; | |
502 | } | |
503 | ||
069b7479 | 504 | static long __video_do_ioctl(struct file *file, |
35ea11ff HV |
505 | unsigned int cmd, void *arg) |
506 | { | |
507 | struct video_device *vfd = video_devdata(file); | |
a399810c | 508 | const struct v4l2_ioctl_ops *ops = vfd->ioctl_ops; |
d5fbf32f | 509 | void *fh = file->private_data; |
99cd47bc | 510 | struct v4l2_fh *vfh = NULL; |
b1a873a3 | 511 | int use_fh_prio = 0; |
93d5a30b | 512 | long ret_prio = 0; |
9190d191 | 513 | long ret = -ENOTTY; |
35ea11ff | 514 | |
6a717883 HV |
515 | if (ops == NULL) { |
516 | printk(KERN_WARNING "videodev: \"%s\" has no ioctl_ops.\n", | |
517 | vfd->name); | |
9190d191 | 518 | return ret; |
6a717883 HV |
519 | } |
520 | ||
b1a873a3 | 521 | if (test_bit(V4L2_FL_USES_V4L2_FH, &vfd->flags)) { |
99cd47bc | 522 | vfh = file->private_data; |
b1a873a3 | 523 | use_fh_prio = test_bit(V4L2_FL_USE_FH_PRIO, &vfd->flags); |
48ea0be0 HV |
524 | if (use_fh_prio) |
525 | ret_prio = v4l2_prio_check(vfd->prio, vfh->prio); | |
b1a873a3 | 526 | } |
99cd47bc | 527 | |
48ea0be0 HV |
528 | if (v4l2_is_known_ioctl(cmd)) { |
529 | struct v4l2_ioctl_info *info = &v4l2_ioctls[_IOC_NR(cmd)]; | |
530 | ||
531 | if (!test_bit(_IOC_NR(cmd), vfd->valid_ioctls) && | |
532 | !((info->flags & INFO_FL_CTRL) && vfh && vfh->ctrl_handler)) | |
533 | return -ENOTTY; | |
534 | } | |
535 | ||
536 | if ((vfd->debug & V4L2_DEBUG_IOCTL) && | |
537 | !(vfd->debug & V4L2_DEBUG_IOCTL_ARG)) { | |
538 | v4l_print_ioctl(vfd->name, cmd); | |
539 | printk(KERN_CONT "\n"); | |
540 | } | |
99cd47bc | 541 | |
6a717883 | 542 | switch (cmd) { |
a399810c | 543 | |
35ea11ff HV |
544 | /* --- capabilities ------------------------------------------ */ |
545 | case VIDIOC_QUERYCAP: | |
546 | { | |
547 | struct v4l2_capability *cap = (struct v4l2_capability *)arg; | |
35ea11ff | 548 | |
ae6db515 | 549 | cap->version = LINUX_VERSION_CODE; |
a399810c | 550 | ret = ops->vidioc_querycap(file, fh, cap); |
35ea11ff HV |
551 | if (!ret) |
552 | dbgarg(cmd, "driver=%s, card=%s, bus=%s, " | |
553 | "version=0x%08x, " | |
583aa3a9 HV |
554 | "capabilities=0x%08x, " |
555 | "device_caps=0x%08x\n", | |
35ea11ff HV |
556 | cap->driver, cap->card, cap->bus_info, |
557 | cap->version, | |
583aa3a9 HV |
558 | cap->capabilities, |
559 | cap->device_caps); | |
35ea11ff HV |
560 | break; |
561 | } | |
562 | ||
563 | /* --- priority ------------------------------------------ */ | |
564 | case VIDIOC_G_PRIORITY: | |
565 | { | |
566 | enum v4l2_priority *p = arg; | |
567 | ||
99cd47bc HV |
568 | if (ops->vidioc_g_priority) { |
569 | ret = ops->vidioc_g_priority(file, fh, p); | |
b1a873a3 | 570 | } else if (use_fh_prio) { |
99cd47bc HV |
571 | *p = v4l2_prio_max(&vfd->v4l2_dev->prio); |
572 | ret = 0; | |
573 | } | |
35ea11ff HV |
574 | if (!ret) |
575 | dbgarg(cmd, "priority is %d\n", *p); | |
576 | break; | |
577 | } | |
578 | case VIDIOC_S_PRIORITY: | |
579 | { | |
580 | enum v4l2_priority *p = arg; | |
581 | ||
b1a873a3 | 582 | if (!ops->vidioc_s_priority && !use_fh_prio) |
a5f2db53 | 583 | break; |
35ea11ff | 584 | dbgarg(cmd, "setting priority to %d\n", *p); |
99cd47bc HV |
585 | if (ops->vidioc_s_priority) |
586 | ret = ops->vidioc_s_priority(file, fh, *p); | |
587 | else | |
93d5a30b HV |
588 | ret = ret_prio ? ret_prio : |
589 | v4l2_prio_change(&vfd->v4l2_dev->prio, | |
590 | &vfh->prio, *p); | |
35ea11ff HV |
591 | break; |
592 | } | |
593 | ||
594 | /* --- capture ioctls ---------------------------------------- */ | |
595 | case VIDIOC_ENUM_FMT: | |
596 | { | |
597 | struct v4l2_fmtdesc *f = arg; | |
35ea11ff | 598 | |
48ea0be0 | 599 | ret = -EINVAL; |
19c96e4b | 600 | switch (f->type) { |
35ea11ff | 601 | case V4L2_BUF_TYPE_VIDEO_CAPTURE: |
a5f2db53 | 602 | if (likely(ops->vidioc_enum_fmt_vid_cap)) |
a399810c | 603 | ret = ops->vidioc_enum_fmt_vid_cap(file, fh, f); |
35ea11ff | 604 | break; |
d14e6d76 | 605 | case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE: |
a5f2db53 | 606 | if (likely(ops->vidioc_enum_fmt_vid_cap_mplane)) |
d14e6d76 PO |
607 | ret = ops->vidioc_enum_fmt_vid_cap_mplane(file, |
608 | fh, f); | |
609 | break; | |
35ea11ff | 610 | case V4L2_BUF_TYPE_VIDEO_OVERLAY: |
a5f2db53 | 611 | if (likely(ops->vidioc_enum_fmt_vid_overlay)) |
a399810c | 612 | ret = ops->vidioc_enum_fmt_vid_overlay(file, |
35ea11ff HV |
613 | fh, f); |
614 | break; | |
35ea11ff | 615 | case V4L2_BUF_TYPE_VIDEO_OUTPUT: |
a5f2db53 | 616 | if (likely(ops->vidioc_enum_fmt_vid_out)) |
a399810c | 617 | ret = ops->vidioc_enum_fmt_vid_out(file, fh, f); |
35ea11ff | 618 | break; |
d14e6d76 | 619 | case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE: |
a5f2db53 | 620 | if (likely(ops->vidioc_enum_fmt_vid_out_mplane)) |
d14e6d76 PO |
621 | ret = ops->vidioc_enum_fmt_vid_out_mplane(file, |
622 | fh, f); | |
623 | break; | |
35ea11ff | 624 | case V4L2_BUF_TYPE_PRIVATE: |
a5f2db53 | 625 | if (likely(ops->vidioc_enum_fmt_type_private)) |
a399810c | 626 | ret = ops->vidioc_enum_fmt_type_private(file, |
35ea11ff HV |
627 | fh, f); |
628 | break; | |
629 | default: | |
630 | break; | |
631 | } | |
48ea0be0 | 632 | if (likely(!ret)) |
35ea11ff HV |
633 | dbgarg(cmd, "index=%d, type=%d, flags=%d, " |
634 | "pixelformat=%c%c%c%c, description='%s'\n", | |
635 | f->index, f->type, f->flags, | |
636 | (f->pixelformat & 0xff), | |
637 | (f->pixelformat >> 8) & 0xff, | |
638 | (f->pixelformat >> 16) & 0xff, | |
639 | (f->pixelformat >> 24) & 0xff, | |
640 | f->description); | |
641 | break; | |
642 | } | |
643 | case VIDIOC_G_FMT: | |
644 | { | |
645 | struct v4l2_format *f = (struct v4l2_format *)arg; | |
646 | ||
35ea11ff HV |
647 | /* FIXME: Should be one dump per type */ |
648 | dbgarg(cmd, "type=%s\n", prt_names(f->type, v4l2_type_names)); | |
649 | ||
48ea0be0 | 650 | ret = -EINVAL; |
35ea11ff HV |
651 | switch (f->type) { |
652 | case V4L2_BUF_TYPE_VIDEO_CAPTURE: | |
1d0c86ca | 653 | if (ops->vidioc_g_fmt_vid_cap) |
a399810c | 654 | ret = ops->vidioc_g_fmt_vid_cap(file, fh, f); |
35ea11ff HV |
655 | if (!ret) |
656 | v4l_print_pix_fmt(vfd, &f->fmt.pix); | |
657 | break; | |
d14e6d76 | 658 | case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE: |
1d0c86ca | 659 | if (ops->vidioc_g_fmt_vid_cap_mplane) |
d14e6d76 PO |
660 | ret = ops->vidioc_g_fmt_vid_cap_mplane(file, |
661 | fh, f); | |
d14e6d76 PO |
662 | if (!ret) |
663 | v4l_print_pix_fmt_mplane(vfd, &f->fmt.pix_mp); | |
664 | break; | |
35ea11ff | 665 | case V4L2_BUF_TYPE_VIDEO_OVERLAY: |
a5f2db53 | 666 | if (likely(ops->vidioc_g_fmt_vid_overlay)) |
a399810c | 667 | ret = ops->vidioc_g_fmt_vid_overlay(file, |
35ea11ff HV |
668 | fh, f); |
669 | break; | |
670 | case V4L2_BUF_TYPE_VIDEO_OUTPUT: | |
1d0c86ca | 671 | if (ops->vidioc_g_fmt_vid_out) |
a399810c | 672 | ret = ops->vidioc_g_fmt_vid_out(file, fh, f); |
35ea11ff HV |
673 | if (!ret) |
674 | v4l_print_pix_fmt(vfd, &f->fmt.pix); | |
675 | break; | |
d14e6d76 | 676 | case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE: |
1d0c86ca | 677 | if (ops->vidioc_g_fmt_vid_out_mplane) |
d14e6d76 PO |
678 | ret = ops->vidioc_g_fmt_vid_out_mplane(file, |
679 | fh, f); | |
d14e6d76 PO |
680 | if (!ret) |
681 | v4l_print_pix_fmt_mplane(vfd, &f->fmt.pix_mp); | |
682 | break; | |
35ea11ff | 683 | case V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY: |
a5f2db53 | 684 | if (likely(ops->vidioc_g_fmt_vid_out_overlay)) |
a399810c | 685 | ret = ops->vidioc_g_fmt_vid_out_overlay(file, |
35ea11ff HV |
686 | fh, f); |
687 | break; | |
688 | case V4L2_BUF_TYPE_VBI_CAPTURE: | |
a5f2db53 | 689 | if (likely(ops->vidioc_g_fmt_vbi_cap)) |
a399810c | 690 | ret = ops->vidioc_g_fmt_vbi_cap(file, fh, f); |
35ea11ff HV |
691 | break; |
692 | case V4L2_BUF_TYPE_VBI_OUTPUT: | |
a5f2db53 | 693 | if (likely(ops->vidioc_g_fmt_vbi_out)) |
a399810c | 694 | ret = ops->vidioc_g_fmt_vbi_out(file, fh, f); |
35ea11ff HV |
695 | break; |
696 | case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE: | |
a5f2db53 | 697 | if (likely(ops->vidioc_g_fmt_sliced_vbi_cap)) |
a399810c | 698 | ret = ops->vidioc_g_fmt_sliced_vbi_cap(file, |
35ea11ff HV |
699 | fh, f); |
700 | break; | |
701 | case V4L2_BUF_TYPE_SLICED_VBI_OUTPUT: | |
a5f2db53 | 702 | if (likely(ops->vidioc_g_fmt_sliced_vbi_out)) |
a399810c | 703 | ret = ops->vidioc_g_fmt_sliced_vbi_out(file, |
35ea11ff HV |
704 | fh, f); |
705 | break; | |
706 | case V4L2_BUF_TYPE_PRIVATE: | |
a5f2db53 | 707 | if (likely(ops->vidioc_g_fmt_type_private)) |
a399810c | 708 | ret = ops->vidioc_g_fmt_type_private(file, |
35ea11ff HV |
709 | fh, f); |
710 | break; | |
711 | } | |
35ea11ff HV |
712 | break; |
713 | } | |
714 | case VIDIOC_S_FMT: | |
715 | { | |
716 | struct v4l2_format *f = (struct v4l2_format *)arg; | |
717 | ||
93d5a30b HV |
718 | if (ret_prio) { |
719 | ret = ret_prio; | |
720 | break; | |
721 | } | |
722 | ret = -EINVAL; | |
723 | ||
35ea11ff HV |
724 | /* FIXME: Should be one dump per type */ |
725 | dbgarg(cmd, "type=%s\n", prt_names(f->type, v4l2_type_names)); | |
726 | ||
727 | switch (f->type) { | |
728 | case V4L2_BUF_TYPE_VIDEO_CAPTURE: | |
7ecc0cf9 | 729 | CLEAR_AFTER_FIELD(f, fmt.pix); |
35ea11ff | 730 | v4l_print_pix_fmt(vfd, &f->fmt.pix); |
1d0c86ca | 731 | if (ops->vidioc_s_fmt_vid_cap) |
a399810c | 732 | ret = ops->vidioc_s_fmt_vid_cap(file, fh, f); |
d14e6d76 PO |
733 | break; |
734 | case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE: | |
735 | CLEAR_AFTER_FIELD(f, fmt.pix_mp); | |
736 | v4l_print_pix_fmt_mplane(vfd, &f->fmt.pix_mp); | |
1d0c86ca | 737 | if (ops->vidioc_s_fmt_vid_cap_mplane) |
d14e6d76 PO |
738 | ret = ops->vidioc_s_fmt_vid_cap_mplane(file, |
739 | fh, f); | |
35ea11ff HV |
740 | break; |
741 | case V4L2_BUF_TYPE_VIDEO_OVERLAY: | |
7ecc0cf9 | 742 | CLEAR_AFTER_FIELD(f, fmt.win); |
a399810c HV |
743 | if (ops->vidioc_s_fmt_vid_overlay) |
744 | ret = ops->vidioc_s_fmt_vid_overlay(file, | |
35ea11ff HV |
745 | fh, f); |
746 | break; | |
747 | case V4L2_BUF_TYPE_VIDEO_OUTPUT: | |
7ecc0cf9 | 748 | CLEAR_AFTER_FIELD(f, fmt.pix); |
35ea11ff | 749 | v4l_print_pix_fmt(vfd, &f->fmt.pix); |
1d0c86ca | 750 | if (ops->vidioc_s_fmt_vid_out) |
a399810c | 751 | ret = ops->vidioc_s_fmt_vid_out(file, fh, f); |
d14e6d76 PO |
752 | break; |
753 | case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE: | |
754 | CLEAR_AFTER_FIELD(f, fmt.pix_mp); | |
755 | v4l_print_pix_fmt_mplane(vfd, &f->fmt.pix_mp); | |
1d0c86ca | 756 | if (ops->vidioc_s_fmt_vid_out_mplane) |
d14e6d76 PO |
757 | ret = ops->vidioc_s_fmt_vid_out_mplane(file, |
758 | fh, f); | |
35ea11ff HV |
759 | break; |
760 | case V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY: | |
7ecc0cf9 | 761 | CLEAR_AFTER_FIELD(f, fmt.win); |
a399810c HV |
762 | if (ops->vidioc_s_fmt_vid_out_overlay) |
763 | ret = ops->vidioc_s_fmt_vid_out_overlay(file, | |
35ea11ff HV |
764 | fh, f); |
765 | break; | |
766 | case V4L2_BUF_TYPE_VBI_CAPTURE: | |
7ecc0cf9 | 767 | CLEAR_AFTER_FIELD(f, fmt.vbi); |
a5f2db53 | 768 | if (likely(ops->vidioc_s_fmt_vbi_cap)) |
a399810c | 769 | ret = ops->vidioc_s_fmt_vbi_cap(file, fh, f); |
35ea11ff HV |
770 | break; |
771 | case V4L2_BUF_TYPE_VBI_OUTPUT: | |
7ecc0cf9 | 772 | CLEAR_AFTER_FIELD(f, fmt.vbi); |
a5f2db53 | 773 | if (likely(ops->vidioc_s_fmt_vbi_out)) |
a399810c | 774 | ret = ops->vidioc_s_fmt_vbi_out(file, fh, f); |
35ea11ff HV |
775 | break; |
776 | case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE: | |
7ecc0cf9 | 777 | CLEAR_AFTER_FIELD(f, fmt.sliced); |
a5f2db53 | 778 | if (likely(ops->vidioc_s_fmt_sliced_vbi_cap)) |
a399810c | 779 | ret = ops->vidioc_s_fmt_sliced_vbi_cap(file, |
35ea11ff HV |
780 | fh, f); |
781 | break; | |
782 | case V4L2_BUF_TYPE_SLICED_VBI_OUTPUT: | |
7ecc0cf9 | 783 | CLEAR_AFTER_FIELD(f, fmt.sliced); |
a5f2db53 | 784 | if (likely(ops->vidioc_s_fmt_sliced_vbi_out)) |
a399810c | 785 | ret = ops->vidioc_s_fmt_sliced_vbi_out(file, |
35ea11ff | 786 | fh, f); |
a5f2db53 | 787 | |
35ea11ff HV |
788 | break; |
789 | case V4L2_BUF_TYPE_PRIVATE: | |
7ecc0cf9 | 790 | /* CLEAR_AFTER_FIELD(f, fmt.raw_data); <- does nothing */ |
a5f2db53 | 791 | if (likely(ops->vidioc_s_fmt_type_private)) |
a399810c | 792 | ret = ops->vidioc_s_fmt_type_private(file, |
35ea11ff HV |
793 | fh, f); |
794 | break; | |
795 | } | |
796 | break; | |
797 | } | |
798 | case VIDIOC_TRY_FMT: | |
799 | { | |
800 | struct v4l2_format *f = (struct v4l2_format *)arg; | |
801 | ||
802 | /* FIXME: Should be one dump per type */ | |
803 | dbgarg(cmd, "type=%s\n", prt_names(f->type, | |
804 | v4l2_type_names)); | |
48ea0be0 | 805 | ret = -EINVAL; |
35ea11ff HV |
806 | switch (f->type) { |
807 | case V4L2_BUF_TYPE_VIDEO_CAPTURE: | |
7ecc0cf9 | 808 | CLEAR_AFTER_FIELD(f, fmt.pix); |
1d0c86ca | 809 | if (ops->vidioc_try_fmt_vid_cap) |
a399810c | 810 | ret = ops->vidioc_try_fmt_vid_cap(file, fh, f); |
35ea11ff HV |
811 | if (!ret) |
812 | v4l_print_pix_fmt(vfd, &f->fmt.pix); | |
813 | break; | |
d14e6d76 PO |
814 | case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE: |
815 | CLEAR_AFTER_FIELD(f, fmt.pix_mp); | |
1d0c86ca | 816 | if (ops->vidioc_try_fmt_vid_cap_mplane) |
d14e6d76 PO |
817 | ret = ops->vidioc_try_fmt_vid_cap_mplane(file, |
818 | fh, f); | |
d14e6d76 PO |
819 | if (!ret) |
820 | v4l_print_pix_fmt_mplane(vfd, &f->fmt.pix_mp); | |
821 | break; | |
35ea11ff | 822 | case V4L2_BUF_TYPE_VIDEO_OVERLAY: |
7ecc0cf9 | 823 | CLEAR_AFTER_FIELD(f, fmt.win); |
a5f2db53 | 824 | if (likely(ops->vidioc_try_fmt_vid_overlay)) |
a399810c | 825 | ret = ops->vidioc_try_fmt_vid_overlay(file, |
35ea11ff HV |
826 | fh, f); |
827 | break; | |
828 | case V4L2_BUF_TYPE_VIDEO_OUTPUT: | |
7ecc0cf9 | 829 | CLEAR_AFTER_FIELD(f, fmt.pix); |
1d0c86ca | 830 | if (ops->vidioc_try_fmt_vid_out) |
a399810c | 831 | ret = ops->vidioc_try_fmt_vid_out(file, fh, f); |
35ea11ff HV |
832 | if (!ret) |
833 | v4l_print_pix_fmt(vfd, &f->fmt.pix); | |
834 | break; | |
d14e6d76 PO |
835 | case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE: |
836 | CLEAR_AFTER_FIELD(f, fmt.pix_mp); | |
1d0c86ca | 837 | if (ops->vidioc_try_fmt_vid_out_mplane) |
d14e6d76 PO |
838 | ret = ops->vidioc_try_fmt_vid_out_mplane(file, |
839 | fh, f); | |
d14e6d76 PO |
840 | if (!ret) |
841 | v4l_print_pix_fmt_mplane(vfd, &f->fmt.pix_mp); | |
842 | break; | |
35ea11ff | 843 | case V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY: |
7ecc0cf9 | 844 | CLEAR_AFTER_FIELD(f, fmt.win); |
a5f2db53 | 845 | if (likely(ops->vidioc_try_fmt_vid_out_overlay)) |
a399810c | 846 | ret = ops->vidioc_try_fmt_vid_out_overlay(file, |
35ea11ff HV |
847 | fh, f); |
848 | break; | |
849 | case V4L2_BUF_TYPE_VBI_CAPTURE: | |
7ecc0cf9 | 850 | CLEAR_AFTER_FIELD(f, fmt.vbi); |
a5f2db53 | 851 | if (likely(ops->vidioc_try_fmt_vbi_cap)) |
a399810c | 852 | ret = ops->vidioc_try_fmt_vbi_cap(file, fh, f); |
35ea11ff HV |
853 | break; |
854 | case V4L2_BUF_TYPE_VBI_OUTPUT: | |
7ecc0cf9 | 855 | CLEAR_AFTER_FIELD(f, fmt.vbi); |
a5f2db53 | 856 | if (likely(ops->vidioc_try_fmt_vbi_out)) |
a399810c | 857 | ret = ops->vidioc_try_fmt_vbi_out(file, fh, f); |
35ea11ff HV |
858 | break; |
859 | case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE: | |
7ecc0cf9 | 860 | CLEAR_AFTER_FIELD(f, fmt.sliced); |
a5f2db53 | 861 | if (likely(ops->vidioc_try_fmt_sliced_vbi_cap)) |
a399810c | 862 | ret = ops->vidioc_try_fmt_sliced_vbi_cap(file, |
35ea11ff HV |
863 | fh, f); |
864 | break; | |
865 | case V4L2_BUF_TYPE_SLICED_VBI_OUTPUT: | |
7ecc0cf9 | 866 | CLEAR_AFTER_FIELD(f, fmt.sliced); |
a5f2db53 | 867 | if (likely(ops->vidioc_try_fmt_sliced_vbi_out)) |
a399810c | 868 | ret = ops->vidioc_try_fmt_sliced_vbi_out(file, |
35ea11ff HV |
869 | fh, f); |
870 | break; | |
871 | case V4L2_BUF_TYPE_PRIVATE: | |
7ecc0cf9 | 872 | /* CLEAR_AFTER_FIELD(f, fmt.raw_data); <- does nothing */ |
a5f2db53 | 873 | if (likely(ops->vidioc_try_fmt_type_private)) |
a399810c | 874 | ret = ops->vidioc_try_fmt_type_private(file, |
35ea11ff HV |
875 | fh, f); |
876 | break; | |
877 | } | |
35ea11ff HV |
878 | break; |
879 | } | |
880 | /* FIXME: Those buf reqs could be handled here, | |
881 | with some changes on videobuf to allow its header to be included at | |
882 | videodev2.h or being merged at videodev2. | |
883 | */ | |
884 | case VIDIOC_REQBUFS: | |
885 | { | |
886 | struct v4l2_requestbuffers *p = arg; | |
887 | ||
93d5a30b HV |
888 | if (ret_prio) { |
889 | ret = ret_prio; | |
890 | break; | |
891 | } | |
a399810c | 892 | ret = check_fmt(ops, p->type); |
35ea11ff HV |
893 | if (ret) |
894 | break; | |
895 | ||
7ecc0cf9 TP |
896 | if (p->type < V4L2_BUF_TYPE_PRIVATE) |
897 | CLEAR_AFTER_FIELD(p, memory); | |
898 | ||
a399810c | 899 | ret = ops->vidioc_reqbufs(file, fh, p); |
35ea11ff HV |
900 | dbgarg(cmd, "count=%d, type=%s, memory=%s\n", |
901 | p->count, | |
902 | prt_names(p->type, v4l2_type_names), | |
903 | prt_names(p->memory, v4l2_memory_names)); | |
904 | break; | |
905 | } | |
906 | case VIDIOC_QUERYBUF: | |
907 | { | |
908 | struct v4l2_buffer *p = arg; | |
909 | ||
a399810c | 910 | ret = check_fmt(ops, p->type); |
35ea11ff HV |
911 | if (ret) |
912 | break; | |
913 | ||
a399810c | 914 | ret = ops->vidioc_querybuf(file, fh, p); |
35ea11ff HV |
915 | if (!ret) |
916 | dbgbuf(cmd, vfd, p); | |
917 | break; | |
918 | } | |
919 | case VIDIOC_QBUF: | |
920 | { | |
921 | struct v4l2_buffer *p = arg; | |
922 | ||
a399810c | 923 | ret = check_fmt(ops, p->type); |
35ea11ff HV |
924 | if (ret) |
925 | break; | |
926 | ||
a399810c | 927 | ret = ops->vidioc_qbuf(file, fh, p); |
35ea11ff HV |
928 | if (!ret) |
929 | dbgbuf(cmd, vfd, p); | |
930 | break; | |
931 | } | |
932 | case VIDIOC_DQBUF: | |
933 | { | |
934 | struct v4l2_buffer *p = arg; | |
935 | ||
a399810c | 936 | ret = check_fmt(ops, p->type); |
35ea11ff HV |
937 | if (ret) |
938 | break; | |
939 | ||
a399810c | 940 | ret = ops->vidioc_dqbuf(file, fh, p); |
35ea11ff HV |
941 | if (!ret) |
942 | dbgbuf(cmd, vfd, p); | |
943 | break; | |
944 | } | |
945 | case VIDIOC_OVERLAY: | |
946 | { | |
947 | int *i = arg; | |
948 | ||
93d5a30b HV |
949 | if (ret_prio) { |
950 | ret = ret_prio; | |
951 | break; | |
952 | } | |
35ea11ff | 953 | dbgarg(cmd, "value=%d\n", *i); |
a399810c | 954 | ret = ops->vidioc_overlay(file, fh, *i); |
35ea11ff HV |
955 | break; |
956 | } | |
957 | case VIDIOC_G_FBUF: | |
958 | { | |
959 | struct v4l2_framebuffer *p = arg; | |
960 | ||
a399810c | 961 | ret = ops->vidioc_g_fbuf(file, fh, arg); |
35ea11ff HV |
962 | if (!ret) { |
963 | dbgarg(cmd, "capability=0x%x, flags=%d, base=0x%08lx\n", | |
964 | p->capability, p->flags, | |
965 | (unsigned long)p->base); | |
966 | v4l_print_pix_fmt(vfd, &p->fmt); | |
967 | } | |
968 | break; | |
969 | } | |
970 | case VIDIOC_S_FBUF: | |
971 | { | |
972 | struct v4l2_framebuffer *p = arg; | |
973 | ||
93d5a30b HV |
974 | if (ret_prio) { |
975 | ret = ret_prio; | |
976 | break; | |
977 | } | |
35ea11ff HV |
978 | dbgarg(cmd, "capability=0x%x, flags=%d, base=0x%08lx\n", |
979 | p->capability, p->flags, (unsigned long)p->base); | |
980 | v4l_print_pix_fmt(vfd, &p->fmt); | |
a399810c | 981 | ret = ops->vidioc_s_fbuf(file, fh, arg); |
35ea11ff HV |
982 | break; |
983 | } | |
984 | case VIDIOC_STREAMON: | |
985 | { | |
986 | enum v4l2_buf_type i = *(int *)arg; | |
987 | ||
93d5a30b HV |
988 | if (ret_prio) { |
989 | ret = ret_prio; | |
990 | break; | |
991 | } | |
35ea11ff | 992 | dbgarg(cmd, "type=%s\n", prt_names(i, v4l2_type_names)); |
a399810c | 993 | ret = ops->vidioc_streamon(file, fh, i); |
35ea11ff HV |
994 | break; |
995 | } | |
996 | case VIDIOC_STREAMOFF: | |
997 | { | |
998 | enum v4l2_buf_type i = *(int *)arg; | |
999 | ||
93d5a30b HV |
1000 | if (ret_prio) { |
1001 | ret = ret_prio; | |
1002 | break; | |
1003 | } | |
35ea11ff | 1004 | dbgarg(cmd, "type=%s\n", prt_names(i, v4l2_type_names)); |
a399810c | 1005 | ret = ops->vidioc_streamoff(file, fh, i); |
35ea11ff HV |
1006 | break; |
1007 | } | |
1008 | /* ---------- tv norms ---------- */ | |
1009 | case VIDIOC_ENUMSTD: | |
1010 | { | |
1011 | struct v4l2_standard *p = arg; | |
1012 | v4l2_std_id id = vfd->tvnorms, curr_id = 0; | |
1013 | unsigned int index = p->index, i, j = 0; | |
1014 | const char *descr = ""; | |
1015 | ||
93d5a30b HV |
1016 | if (id == 0) |
1017 | break; | |
1018 | ret = -EINVAL; | |
1019 | ||
35ea11ff HV |
1020 | /* Return norm array in a canonical way */ |
1021 | for (i = 0; i <= index && id; i++) { | |
1022 | /* last std value in the standards array is 0, so this | |
1023 | while always ends there since (id & 0) == 0. */ | |
1024 | while ((id & standards[j].std) != standards[j].std) | |
1025 | j++; | |
1026 | curr_id = standards[j].std; | |
1027 | descr = standards[j].descr; | |
1028 | j++; | |
1029 | if (curr_id == 0) | |
1030 | break; | |
1031 | if (curr_id != V4L2_STD_PAL && | |
1032 | curr_id != V4L2_STD_SECAM && | |
1033 | curr_id != V4L2_STD_NTSC) | |
1034 | id &= ~curr_id; | |
1035 | } | |
1036 | if (i <= index) | |
3f5e1824 | 1037 | break; |
35ea11ff HV |
1038 | |
1039 | v4l2_video_std_construct(p, curr_id, descr); | |
35ea11ff HV |
1040 | |
1041 | dbgarg(cmd, "index=%d, id=0x%Lx, name=%s, fps=%d/%d, " | |
1042 | "framelines=%d\n", p->index, | |
1043 | (unsigned long long)p->id, p->name, | |
1044 | p->frameperiod.numerator, | |
1045 | p->frameperiod.denominator, | |
1046 | p->framelines); | |
1047 | ||
1048 | ret = 0; | |
1049 | break; | |
1050 | } | |
1051 | case VIDIOC_G_STD: | |
1052 | { | |
1053 | v4l2_std_id *id = arg; | |
1054 | ||
35ea11ff | 1055 | /* Calls the specific handler */ |
a399810c HV |
1056 | if (ops->vidioc_g_std) |
1057 | ret = ops->vidioc_g_std(file, fh, id); | |
a5f2db53 MCC |
1058 | else if (vfd->current_norm) { |
1059 | ret = 0; | |
35ea11ff | 1060 | *id = vfd->current_norm; |
a5f2db53 | 1061 | } |
35ea11ff | 1062 | |
a5f2db53 | 1063 | if (likely(!ret)) |
35ea11ff HV |
1064 | dbgarg(cmd, "std=0x%08Lx\n", (long long unsigned)*id); |
1065 | break; | |
1066 | } | |
1067 | case VIDIOC_S_STD: | |
1068 | { | |
1069 | v4l2_std_id *id = arg, norm; | |
1070 | ||
1071 | dbgarg(cmd, "std=%08Lx\n", (long long unsigned)*id); | |
1072 | ||
93d5a30b HV |
1073 | if (ret_prio) { |
1074 | ret = ret_prio; | |
1075 | break; | |
1076 | } | |
1077 | ret = -EINVAL; | |
35ea11ff HV |
1078 | norm = (*id) & vfd->tvnorms; |
1079 | if (vfd->tvnorms && !norm) /* Check if std is supported */ | |
1080 | break; | |
1081 | ||
1082 | /* Calls the specific handler */ | |
93d5a30b | 1083 | ret = ops->vidioc_s_std(file, fh, &norm); |
35ea11ff HV |
1084 | |
1085 | /* Updates standard information */ | |
1086 | if (ret >= 0) | |
1087 | vfd->current_norm = norm; | |
1088 | break; | |
1089 | } | |
1090 | case VIDIOC_QUERYSTD: | |
1091 | { | |
1092 | v4l2_std_id *p = arg; | |
1093 | ||
8715e6cb MCC |
1094 | /* |
1095 | * If nothing detected, it should return all supported | |
1096 | * Drivers just need to mask the std argument, in order | |
1097 | * to remove the standards that don't apply from the mask. | |
1098 | * This means that tuners, audio and video decoders can join | |
1099 | * their efforts to improve the standards detection | |
1100 | */ | |
1101 | *p = vfd->tvnorms; | |
a399810c | 1102 | ret = ops->vidioc_querystd(file, fh, arg); |
35ea11ff HV |
1103 | if (!ret) |
1104 | dbgarg(cmd, "detected std=%08Lx\n", | |
1105 | (unsigned long long)*p); | |
1106 | break; | |
1107 | } | |
1108 | /* ------ input switching ---------- */ | |
1109 | /* FIXME: Inputs can be handled inside videodev2 */ | |
1110 | case VIDIOC_ENUMINPUT: | |
1111 | { | |
1112 | struct v4l2_input *p = arg; | |
35ea11ff | 1113 | |
b6456c0c MK |
1114 | /* |
1115 | * We set the flags for CAP_PRESETS, CAP_CUSTOM_TIMINGS & | |
1116 | * CAP_STD here based on ioctl handler provided by the | |
1117 | * driver. If the driver doesn't support these | |
1118 | * for a specific input, it must override these flags. | |
1119 | */ | |
1120 | if (ops->vidioc_s_std) | |
1121 | p->capabilities |= V4L2_IN_CAP_STD; | |
1122 | if (ops->vidioc_s_dv_preset) | |
1123 | p->capabilities |= V4L2_IN_CAP_PRESETS; | |
1124 | if (ops->vidioc_s_dv_timings) | |
1125 | p->capabilities |= V4L2_IN_CAP_CUSTOM_TIMINGS; | |
1126 | ||
a399810c | 1127 | ret = ops->vidioc_enum_input(file, fh, p); |
35ea11ff HV |
1128 | if (!ret) |
1129 | dbgarg(cmd, "index=%d, name=%s, type=%d, " | |
1130 | "audioset=%d, " | |
1131 | "tuner=%d, std=%08Lx, status=%d\n", | |
1132 | p->index, p->name, p->type, p->audioset, | |
1133 | p->tuner, | |
1134 | (unsigned long long)p->std, | |
1135 | p->status); | |
1136 | break; | |
1137 | } | |
1138 | case VIDIOC_G_INPUT: | |
1139 | { | |
1140 | unsigned int *i = arg; | |
1141 | ||
a399810c | 1142 | ret = ops->vidioc_g_input(file, fh, i); |
35ea11ff HV |
1143 | if (!ret) |
1144 | dbgarg(cmd, "value=%d\n", *i); | |
1145 | break; | |
1146 | } | |
1147 | case VIDIOC_S_INPUT: | |
1148 | { | |
1149 | unsigned int *i = arg; | |
1150 | ||
93d5a30b HV |
1151 | if (ret_prio) { |
1152 | ret = ret_prio; | |
1153 | break; | |
1154 | } | |
35ea11ff | 1155 | dbgarg(cmd, "value=%d\n", *i); |
a399810c | 1156 | ret = ops->vidioc_s_input(file, fh, *i); |
35ea11ff HV |
1157 | break; |
1158 | } | |
1159 | ||
1160 | /* ------ output switching ---------- */ | |
1161 | case VIDIOC_ENUMOUTPUT: | |
1162 | { | |
1163 | struct v4l2_output *p = arg; | |
35ea11ff | 1164 | |
b6456c0c MK |
1165 | /* |
1166 | * We set the flags for CAP_PRESETS, CAP_CUSTOM_TIMINGS & | |
1167 | * CAP_STD here based on ioctl handler provided by the | |
1168 | * driver. If the driver doesn't support these | |
1169 | * for a specific output, it must override these flags. | |
1170 | */ | |
1171 | if (ops->vidioc_s_std) | |
1172 | p->capabilities |= V4L2_OUT_CAP_STD; | |
1173 | if (ops->vidioc_s_dv_preset) | |
1174 | p->capabilities |= V4L2_OUT_CAP_PRESETS; | |
1175 | if (ops->vidioc_s_dv_timings) | |
1176 | p->capabilities |= V4L2_OUT_CAP_CUSTOM_TIMINGS; | |
1177 | ||
a399810c | 1178 | ret = ops->vidioc_enum_output(file, fh, p); |
35ea11ff HV |
1179 | if (!ret) |
1180 | dbgarg(cmd, "index=%d, name=%s, type=%d, " | |
1181 | "audioset=0x%x, " | |
1182 | "modulator=%d, std=0x%08Lx\n", | |
1183 | p->index, p->name, p->type, p->audioset, | |
1184 | p->modulator, (unsigned long long)p->std); | |
1185 | break; | |
1186 | } | |
1187 | case VIDIOC_G_OUTPUT: | |
1188 | { | |
1189 | unsigned int *i = arg; | |
1190 | ||
a399810c | 1191 | ret = ops->vidioc_g_output(file, fh, i); |
35ea11ff HV |
1192 | if (!ret) |
1193 | dbgarg(cmd, "value=%d\n", *i); | |
1194 | break; | |
1195 | } | |
1196 | case VIDIOC_S_OUTPUT: | |
1197 | { | |
1198 | unsigned int *i = arg; | |
1199 | ||
93d5a30b HV |
1200 | if (ret_prio) { |
1201 | ret = ret_prio; | |
1202 | break; | |
1203 | } | |
35ea11ff | 1204 | dbgarg(cmd, "value=%d\n", *i); |
a399810c | 1205 | ret = ops->vidioc_s_output(file, fh, *i); |
35ea11ff HV |
1206 | break; |
1207 | } | |
1208 | ||
1209 | /* --- controls ---------------------------------------------- */ | |
1210 | case VIDIOC_QUERYCTRL: | |
1211 | { | |
1212 | struct v4l2_queryctrl *p = arg; | |
1213 | ||
2d28b686 HV |
1214 | if (vfh && vfh->ctrl_handler) |
1215 | ret = v4l2_queryctrl(vfh->ctrl_handler, p); | |
1216 | else if (vfd->ctrl_handler) | |
11bbc1ca HV |
1217 | ret = v4l2_queryctrl(vfd->ctrl_handler, p); |
1218 | else if (ops->vidioc_queryctrl) | |
1219 | ret = ops->vidioc_queryctrl(file, fh, p); | |
1220 | else | |
35ea11ff | 1221 | break; |
35ea11ff HV |
1222 | if (!ret) |
1223 | dbgarg(cmd, "id=0x%x, type=%d, name=%s, min/max=%d/%d, " | |
1224 | "step=%d, default=%d, flags=0x%08x\n", | |
1225 | p->id, p->type, p->name, | |
1226 | p->minimum, p->maximum, | |
1227 | p->step, p->default_value, p->flags); | |
1228 | else | |
1229 | dbgarg(cmd, "id=0x%x\n", p->id); | |
1230 | break; | |
1231 | } | |
1232 | case VIDIOC_G_CTRL: | |
1233 | { | |
1234 | struct v4l2_control *p = arg; | |
1235 | ||
2d28b686 HV |
1236 | if (vfh && vfh->ctrl_handler) |
1237 | ret = v4l2_g_ctrl(vfh->ctrl_handler, p); | |
1238 | else if (vfd->ctrl_handler) | |
11bbc1ca HV |
1239 | ret = v4l2_g_ctrl(vfd->ctrl_handler, p); |
1240 | else if (ops->vidioc_g_ctrl) | |
a399810c HV |
1241 | ret = ops->vidioc_g_ctrl(file, fh, p); |
1242 | else if (ops->vidioc_g_ext_ctrls) { | |
35ea11ff HV |
1243 | struct v4l2_ext_controls ctrls; |
1244 | struct v4l2_ext_control ctrl; | |
1245 | ||
1246 | ctrls.ctrl_class = V4L2_CTRL_ID2CLASS(p->id); | |
1247 | ctrls.count = 1; | |
1248 | ctrls.controls = &ctrl; | |
1249 | ctrl.id = p->id; | |
1250 | ctrl.value = p->value; | |
1251 | if (check_ext_ctrls(&ctrls, 1)) { | |
a399810c | 1252 | ret = ops->vidioc_g_ext_ctrls(file, fh, &ctrls); |
35ea11ff HV |
1253 | if (ret == 0) |
1254 | p->value = ctrl.value; | |
1255 | } | |
1256 | } else | |
1257 | break; | |
1258 | if (!ret) | |
1259 | dbgarg(cmd, "id=0x%x, value=%d\n", p->id, p->value); | |
1260 | else | |
1261 | dbgarg(cmd, "id=0x%x\n", p->id); | |
1262 | break; | |
1263 | } | |
1264 | case VIDIOC_S_CTRL: | |
1265 | { | |
1266 | struct v4l2_control *p = arg; | |
1267 | struct v4l2_ext_controls ctrls; | |
1268 | struct v4l2_ext_control ctrl; | |
1269 | ||
2d28b686 | 1270 | if (!(vfh && vfh->ctrl_handler) && !vfd->ctrl_handler && |
11bbc1ca | 1271 | !ops->vidioc_s_ctrl && !ops->vidioc_s_ext_ctrls) |
35ea11ff | 1272 | break; |
93d5a30b HV |
1273 | if (ret_prio) { |
1274 | ret = ret_prio; | |
1275 | break; | |
1276 | } | |
35ea11ff HV |
1277 | |
1278 | dbgarg(cmd, "id=0x%x, value=%d\n", p->id, p->value); | |
1279 | ||
2d28b686 | 1280 | if (vfh && vfh->ctrl_handler) { |
ab892bac | 1281 | ret = v4l2_s_ctrl(vfh, vfh->ctrl_handler, p); |
2d28b686 HV |
1282 | break; |
1283 | } | |
11bbc1ca | 1284 | if (vfd->ctrl_handler) { |
ab892bac | 1285 | ret = v4l2_s_ctrl(NULL, vfd->ctrl_handler, p); |
11bbc1ca HV |
1286 | break; |
1287 | } | |
a399810c HV |
1288 | if (ops->vidioc_s_ctrl) { |
1289 | ret = ops->vidioc_s_ctrl(file, fh, p); | |
35ea11ff HV |
1290 | break; |
1291 | } | |
a399810c | 1292 | if (!ops->vidioc_s_ext_ctrls) |
35ea11ff HV |
1293 | break; |
1294 | ||
1295 | ctrls.ctrl_class = V4L2_CTRL_ID2CLASS(p->id); | |
1296 | ctrls.count = 1; | |
1297 | ctrls.controls = &ctrl; | |
1298 | ctrl.id = p->id; | |
1299 | ctrl.value = p->value; | |
1300 | if (check_ext_ctrls(&ctrls, 1)) | |
a399810c | 1301 | ret = ops->vidioc_s_ext_ctrls(file, fh, &ctrls); |
93d5a30b HV |
1302 | else |
1303 | ret = -EINVAL; | |
35ea11ff HV |
1304 | break; |
1305 | } | |
1306 | case VIDIOC_G_EXT_CTRLS: | |
1307 | { | |
1308 | struct v4l2_ext_controls *p = arg; | |
1309 | ||
1310 | p->error_idx = p->count; | |
2d28b686 HV |
1311 | if (vfh && vfh->ctrl_handler) |
1312 | ret = v4l2_g_ext_ctrls(vfh->ctrl_handler, p); | |
1313 | else if (vfd->ctrl_handler) | |
11bbc1ca | 1314 | ret = v4l2_g_ext_ctrls(vfd->ctrl_handler, p); |
93d5a30b HV |
1315 | else if (ops->vidioc_g_ext_ctrls) |
1316 | ret = check_ext_ctrls(p, 0) ? | |
1317 | ops->vidioc_g_ext_ctrls(file, fh, p) : | |
1318 | -EINVAL; | |
11bbc1ca HV |
1319 | else |
1320 | break; | |
35ea11ff HV |
1321 | v4l_print_ext_ctrls(cmd, vfd, p, !ret); |
1322 | break; | |
1323 | } | |
1324 | case VIDIOC_S_EXT_CTRLS: | |
1325 | { | |
1326 | struct v4l2_ext_controls *p = arg; | |
1327 | ||
1328 | p->error_idx = p->count; | |
2d28b686 HV |
1329 | if (!(vfh && vfh->ctrl_handler) && !vfd->ctrl_handler && |
1330 | !ops->vidioc_s_ext_ctrls) | |
35ea11ff | 1331 | break; |
93d5a30b HV |
1332 | if (ret_prio) { |
1333 | ret = ret_prio; | |
1334 | break; | |
1335 | } | |
35ea11ff | 1336 | v4l_print_ext_ctrls(cmd, vfd, p, 1); |
2d28b686 | 1337 | if (vfh && vfh->ctrl_handler) |
ab892bac | 1338 | ret = v4l2_s_ext_ctrls(vfh, vfh->ctrl_handler, p); |
2d28b686 | 1339 | else if (vfd->ctrl_handler) |
ab892bac | 1340 | ret = v4l2_s_ext_ctrls(NULL, vfd->ctrl_handler, p); |
11bbc1ca | 1341 | else if (check_ext_ctrls(p, 0)) |
a399810c | 1342 | ret = ops->vidioc_s_ext_ctrls(file, fh, p); |
93d5a30b HV |
1343 | else |
1344 | ret = -EINVAL; | |
35ea11ff HV |
1345 | break; |
1346 | } | |
1347 | case VIDIOC_TRY_EXT_CTRLS: | |
1348 | { | |
1349 | struct v4l2_ext_controls *p = arg; | |
1350 | ||
1351 | p->error_idx = p->count; | |
2d28b686 HV |
1352 | if (!(vfh && vfh->ctrl_handler) && !vfd->ctrl_handler && |
1353 | !ops->vidioc_try_ext_ctrls) | |
35ea11ff HV |
1354 | break; |
1355 | v4l_print_ext_ctrls(cmd, vfd, p, 1); | |
2d28b686 HV |
1356 | if (vfh && vfh->ctrl_handler) |
1357 | ret = v4l2_try_ext_ctrls(vfh->ctrl_handler, p); | |
1358 | else if (vfd->ctrl_handler) | |
11bbc1ca HV |
1359 | ret = v4l2_try_ext_ctrls(vfd->ctrl_handler, p); |
1360 | else if (check_ext_ctrls(p, 0)) | |
a399810c | 1361 | ret = ops->vidioc_try_ext_ctrls(file, fh, p); |
93d5a30b HV |
1362 | else |
1363 | ret = -EINVAL; | |
35ea11ff HV |
1364 | break; |
1365 | } | |
1366 | case VIDIOC_QUERYMENU: | |
1367 | { | |
1368 | struct v4l2_querymenu *p = arg; | |
1369 | ||
2d28b686 HV |
1370 | if (vfh && vfh->ctrl_handler) |
1371 | ret = v4l2_querymenu(vfh->ctrl_handler, p); | |
1372 | else if (vfd->ctrl_handler) | |
11bbc1ca HV |
1373 | ret = v4l2_querymenu(vfd->ctrl_handler, p); |
1374 | else if (ops->vidioc_querymenu) | |
1375 | ret = ops->vidioc_querymenu(file, fh, p); | |
1376 | else | |
35ea11ff | 1377 | break; |
35ea11ff HV |
1378 | if (!ret) |
1379 | dbgarg(cmd, "id=0x%x, index=%d, name=%s\n", | |
1380 | p->id, p->index, p->name); | |
1381 | else | |
1382 | dbgarg(cmd, "id=0x%x, index=%d\n", | |
1383 | p->id, p->index); | |
1384 | break; | |
1385 | } | |
1386 | /* --- audio ---------------------------------------------- */ | |
1387 | case VIDIOC_ENUMAUDIO: | |
1388 | { | |
1389 | struct v4l2_audio *p = arg; | |
1390 | ||
a399810c | 1391 | ret = ops->vidioc_enumaudio(file, fh, p); |
35ea11ff HV |
1392 | if (!ret) |
1393 | dbgarg(cmd, "index=%d, name=%s, capability=0x%x, " | |
1394 | "mode=0x%x\n", p->index, p->name, | |
1395 | p->capability, p->mode); | |
1396 | else | |
1397 | dbgarg(cmd, "index=%d\n", p->index); | |
1398 | break; | |
1399 | } | |
1400 | case VIDIOC_G_AUDIO: | |
1401 | { | |
1402 | struct v4l2_audio *p = arg; | |
35ea11ff | 1403 | |
a399810c | 1404 | ret = ops->vidioc_g_audio(file, fh, p); |
35ea11ff HV |
1405 | if (!ret) |
1406 | dbgarg(cmd, "index=%d, name=%s, capability=0x%x, " | |
1407 | "mode=0x%x\n", p->index, | |
1408 | p->name, p->capability, p->mode); | |
1409 | else | |
1410 | dbgarg(cmd, "index=%d\n", p->index); | |
1411 | break; | |
1412 | } | |
1413 | case VIDIOC_S_AUDIO: | |
1414 | { | |
1415 | struct v4l2_audio *p = arg; | |
1416 | ||
93d5a30b HV |
1417 | if (ret_prio) { |
1418 | ret = ret_prio; | |
1419 | break; | |
1420 | } | |
35ea11ff HV |
1421 | dbgarg(cmd, "index=%d, name=%s, capability=0x%x, " |
1422 | "mode=0x%x\n", p->index, p->name, | |
1423 | p->capability, p->mode); | |
a399810c | 1424 | ret = ops->vidioc_s_audio(file, fh, p); |
35ea11ff HV |
1425 | break; |
1426 | } | |
1427 | case VIDIOC_ENUMAUDOUT: | |
1428 | { | |
1429 | struct v4l2_audioout *p = arg; | |
1430 | ||
35ea11ff | 1431 | dbgarg(cmd, "Enum for index=%d\n", p->index); |
a399810c | 1432 | ret = ops->vidioc_enumaudout(file, fh, p); |
35ea11ff HV |
1433 | if (!ret) |
1434 | dbgarg2("index=%d, name=%s, capability=%d, " | |
1435 | "mode=%d\n", p->index, p->name, | |
1436 | p->capability, p->mode); | |
1437 | break; | |
1438 | } | |
1439 | case VIDIOC_G_AUDOUT: | |
1440 | { | |
1441 | struct v4l2_audioout *p = arg; | |
1442 | ||
a399810c | 1443 | ret = ops->vidioc_g_audout(file, fh, p); |
35ea11ff HV |
1444 | if (!ret) |
1445 | dbgarg2("index=%d, name=%s, capability=%d, " | |
1446 | "mode=%d\n", p->index, p->name, | |
1447 | p->capability, p->mode); | |
1448 | break; | |
1449 | } | |
1450 | case VIDIOC_S_AUDOUT: | |
1451 | { | |
1452 | struct v4l2_audioout *p = arg; | |
1453 | ||
93d5a30b HV |
1454 | if (ret_prio) { |
1455 | ret = ret_prio; | |
1456 | break; | |
1457 | } | |
35ea11ff HV |
1458 | dbgarg(cmd, "index=%d, name=%s, capability=%d, " |
1459 | "mode=%d\n", p->index, p->name, | |
1460 | p->capability, p->mode); | |
1461 | ||
a399810c | 1462 | ret = ops->vidioc_s_audout(file, fh, p); |
35ea11ff HV |
1463 | break; |
1464 | } | |
1465 | case VIDIOC_G_MODULATOR: | |
1466 | { | |
1467 | struct v4l2_modulator *p = arg; | |
1468 | ||
a399810c | 1469 | ret = ops->vidioc_g_modulator(file, fh, p); |
35ea11ff HV |
1470 | if (!ret) |
1471 | dbgarg(cmd, "index=%d, name=%s, " | |
1472 | "capability=%d, rangelow=%d," | |
1473 | " rangehigh=%d, txsubchans=%d\n", | |
1474 | p->index, p->name, p->capability, | |
1475 | p->rangelow, p->rangehigh, | |
1476 | p->txsubchans); | |
1477 | break; | |
1478 | } | |
1479 | case VIDIOC_S_MODULATOR: | |
1480 | { | |
1481 | struct v4l2_modulator *p = arg; | |
1482 | ||
93d5a30b HV |
1483 | if (ret_prio) { |
1484 | ret = ret_prio; | |
1485 | break; | |
1486 | } | |
35ea11ff HV |
1487 | dbgarg(cmd, "index=%d, name=%s, capability=%d, " |
1488 | "rangelow=%d, rangehigh=%d, txsubchans=%d\n", | |
1489 | p->index, p->name, p->capability, p->rangelow, | |
1490 | p->rangehigh, p->txsubchans); | |
a399810c | 1491 | ret = ops->vidioc_s_modulator(file, fh, p); |
35ea11ff HV |
1492 | break; |
1493 | } | |
1494 | case VIDIOC_G_CROP: | |
1495 | { | |
1496 | struct v4l2_crop *p = arg; | |
1497 | ||
35ea11ff | 1498 | dbgarg(cmd, "type=%s\n", prt_names(p->type, v4l2_type_names)); |
992efeff TS |
1499 | |
1500 | if (ops->vidioc_g_crop) { | |
1501 | ret = ops->vidioc_g_crop(file, fh, p); | |
1502 | } else { | |
1503 | /* simulate capture crop using selection api */ | |
1504 | struct v4l2_selection s = { | |
1505 | .type = p->type, | |
1506 | }; | |
1507 | ||
1508 | /* crop means compose for output devices */ | |
1509 | if (V4L2_TYPE_IS_OUTPUT(p->type)) | |
1510 | s.target = V4L2_SEL_TGT_COMPOSE_ACTIVE; | |
1511 | else | |
1512 | s.target = V4L2_SEL_TGT_CROP_ACTIVE; | |
1513 | ||
1514 | ret = ops->vidioc_g_selection(file, fh, &s); | |
1515 | ||
1516 | /* copying results to old structure on success */ | |
1517 | if (!ret) | |
1518 | p->c = s.r; | |
1519 | } | |
1520 | ||
35ea11ff HV |
1521 | if (!ret) |
1522 | dbgrect(vfd, "", &p->c); | |
1523 | break; | |
1524 | } | |
1525 | case VIDIOC_S_CROP: | |
1526 | { | |
1527 | struct v4l2_crop *p = arg; | |
1528 | ||
93d5a30b HV |
1529 | if (ret_prio) { |
1530 | ret = ret_prio; | |
1531 | break; | |
1532 | } | |
35ea11ff HV |
1533 | dbgarg(cmd, "type=%s\n", prt_names(p->type, v4l2_type_names)); |
1534 | dbgrect(vfd, "", &p->c); | |
992efeff TS |
1535 | |
1536 | if (ops->vidioc_s_crop) { | |
1537 | ret = ops->vidioc_s_crop(file, fh, p); | |
1538 | } else { | |
1539 | /* simulate capture crop using selection api */ | |
1540 | struct v4l2_selection s = { | |
1541 | .type = p->type, | |
1542 | .r = p->c, | |
1543 | }; | |
1544 | ||
1545 | /* crop means compose for output devices */ | |
1546 | if (V4L2_TYPE_IS_OUTPUT(p->type)) | |
1547 | s.target = V4L2_SEL_TGT_COMPOSE_ACTIVE; | |
1548 | else | |
1549 | s.target = V4L2_SEL_TGT_CROP_ACTIVE; | |
1550 | ||
1551 | ret = ops->vidioc_s_selection(file, fh, &s); | |
1552 | } | |
35ea11ff HV |
1553 | break; |
1554 | } | |
0e8caace TS |
1555 | case VIDIOC_G_SELECTION: |
1556 | { | |
1557 | struct v4l2_selection *p = arg; | |
1558 | ||
0e8caace TS |
1559 | dbgarg(cmd, "type=%s\n", prt_names(p->type, v4l2_type_names)); |
1560 | ||
1561 | ret = ops->vidioc_g_selection(file, fh, p); | |
1562 | if (!ret) | |
1563 | dbgrect(vfd, "", &p->r); | |
1564 | break; | |
1565 | } | |
1566 | case VIDIOC_S_SELECTION: | |
1567 | { | |
1568 | struct v4l2_selection *p = arg; | |
1569 | ||
0e8caace TS |
1570 | if (ret_prio) { |
1571 | ret = ret_prio; | |
1572 | break; | |
1573 | } | |
1574 | ||
1575 | dbgarg(cmd, "type=%s\n", prt_names(p->type, v4l2_type_names)); | |
1576 | dbgrect(vfd, "", &p->r); | |
1577 | ||
1578 | ret = ops->vidioc_s_selection(file, fh, p); | |
1579 | break; | |
1580 | } | |
35ea11ff HV |
1581 | case VIDIOC_CROPCAP: |
1582 | { | |
1583 | struct v4l2_cropcap *p = arg; | |
1584 | ||
1585 | /*FIXME: Should also show v4l2_fract pixelaspect */ | |
35ea11ff | 1586 | dbgarg(cmd, "type=%s\n", prt_names(p->type, v4l2_type_names)); |
992efeff TS |
1587 | if (ops->vidioc_cropcap) { |
1588 | ret = ops->vidioc_cropcap(file, fh, p); | |
1589 | } else { | |
1590 | struct v4l2_selection s = { .type = p->type }; | |
1591 | ||
1592 | /* obtaining bounds */ | |
1593 | if (V4L2_TYPE_IS_OUTPUT(p->type)) | |
1594 | s.target = V4L2_SEL_TGT_COMPOSE_BOUNDS; | |
1595 | else | |
1596 | s.target = V4L2_SEL_TGT_CROP_BOUNDS; | |
1597 | ||
1598 | ret = ops->vidioc_g_selection(file, fh, &s); | |
1599 | if (ret) | |
1600 | break; | |
1601 | p->bounds = s.r; | |
1602 | ||
1603 | /* obtaining defrect */ | |
1604 | if (V4L2_TYPE_IS_OUTPUT(p->type)) | |
1605 | s.target = V4L2_SEL_TGT_COMPOSE_DEFAULT; | |
1606 | else | |
1607 | s.target = V4L2_SEL_TGT_CROP_DEFAULT; | |
1608 | ||
1609 | ret = ops->vidioc_g_selection(file, fh, &s); | |
1610 | if (ret) | |
1611 | break; | |
1612 | p->defrect = s.r; | |
1613 | ||
1614 | /* setting trivial pixelaspect */ | |
1615 | p->pixelaspect.numerator = 1; | |
1616 | p->pixelaspect.denominator = 1; | |
1617 | } | |
1618 | ||
35ea11ff HV |
1619 | if (!ret) { |
1620 | dbgrect(vfd, "bounds ", &p->bounds); | |
1621 | dbgrect(vfd, "defrect ", &p->defrect); | |
1622 | } | |
1623 | break; | |
1624 | } | |
1625 | case VIDIOC_G_JPEGCOMP: | |
1626 | { | |
1627 | struct v4l2_jpegcompression *p = arg; | |
1628 | ||
a399810c | 1629 | ret = ops->vidioc_g_jpegcomp(file, fh, p); |
35ea11ff HV |
1630 | if (!ret) |
1631 | dbgarg(cmd, "quality=%d, APPn=%d, " | |
1632 | "APP_len=%d, COM_len=%d, " | |
1633 | "jpeg_markers=%d\n", | |
1634 | p->quality, p->APPn, p->APP_len, | |
1635 | p->COM_len, p->jpeg_markers); | |
1636 | break; | |
1637 | } | |
1638 | case VIDIOC_S_JPEGCOMP: | |
1639 | { | |
1640 | struct v4l2_jpegcompression *p = arg; | |
1641 | ||
93d5a30b HV |
1642 | if (ret_prio) { |
1643 | ret = ret_prio; | |
1644 | break; | |
1645 | } | |
35ea11ff HV |
1646 | dbgarg(cmd, "quality=%d, APPn=%d, APP_len=%d, " |
1647 | "COM_len=%d, jpeg_markers=%d\n", | |
1648 | p->quality, p->APPn, p->APP_len, | |
1649 | p->COM_len, p->jpeg_markers); | |
93d5a30b | 1650 | ret = ops->vidioc_s_jpegcomp(file, fh, p); |
35ea11ff HV |
1651 | break; |
1652 | } | |
1653 | case VIDIOC_G_ENC_INDEX: | |
1654 | { | |
1655 | struct v4l2_enc_idx *p = arg; | |
1656 | ||
a399810c | 1657 | ret = ops->vidioc_g_enc_index(file, fh, p); |
35ea11ff HV |
1658 | if (!ret) |
1659 | dbgarg(cmd, "entries=%d, entries_cap=%d\n", | |
1660 | p->entries, p->entries_cap); | |
1661 | break; | |
1662 | } | |
1663 | case VIDIOC_ENCODER_CMD: | |
1664 | { | |
1665 | struct v4l2_encoder_cmd *p = arg; | |
1666 | ||
93d5a30b HV |
1667 | if (ret_prio) { |
1668 | ret = ret_prio; | |
1669 | break; | |
1670 | } | |
a399810c | 1671 | ret = ops->vidioc_encoder_cmd(file, fh, p); |
35ea11ff HV |
1672 | if (!ret) |
1673 | dbgarg(cmd, "cmd=%d, flags=%x\n", p->cmd, p->flags); | |
1674 | break; | |
1675 | } | |
1676 | case VIDIOC_TRY_ENCODER_CMD: | |
1677 | { | |
1678 | struct v4l2_encoder_cmd *p = arg; | |
1679 | ||
a399810c | 1680 | ret = ops->vidioc_try_encoder_cmd(file, fh, p); |
35ea11ff HV |
1681 | if (!ret) |
1682 | dbgarg(cmd, "cmd=%d, flags=%x\n", p->cmd, p->flags); | |
1683 | break; | |
1684 | } | |
a45c0ad5 HV |
1685 | case VIDIOC_DECODER_CMD: |
1686 | { | |
1687 | struct v4l2_decoder_cmd *p = arg; | |
1688 | ||
a45c0ad5 HV |
1689 | if (ret_prio) { |
1690 | ret = ret_prio; | |
1691 | break; | |
1692 | } | |
1693 | ret = ops->vidioc_decoder_cmd(file, fh, p); | |
1694 | if (!ret) | |
1695 | dbgarg(cmd, "cmd=%d, flags=%x\n", p->cmd, p->flags); | |
1696 | break; | |
1697 | } | |
1698 | case VIDIOC_TRY_DECODER_CMD: | |
1699 | { | |
1700 | struct v4l2_decoder_cmd *p = arg; | |
1701 | ||
a45c0ad5 HV |
1702 | ret = ops->vidioc_try_decoder_cmd(file, fh, p); |
1703 | if (!ret) | |
1704 | dbgarg(cmd, "cmd=%d, flags=%x\n", p->cmd, p->flags); | |
1705 | break; | |
1706 | } | |
35ea11ff HV |
1707 | case VIDIOC_G_PARM: |
1708 | { | |
1709 | struct v4l2_streamparm *p = arg; | |
35ea11ff | 1710 | |
a399810c | 1711 | if (ops->vidioc_g_parm) { |
34796bc0 TP |
1712 | ret = check_fmt(ops, p->type); |
1713 | if (ret) | |
1714 | break; | |
a399810c | 1715 | ret = ops->vidioc_g_parm(file, fh, p); |
35ea11ff | 1716 | } else { |
9bedc7f7 HV |
1717 | v4l2_std_id std = vfd->current_norm; |
1718 | ||
93d5a30b | 1719 | ret = -EINVAL; |
35ea11ff | 1720 | if (p->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) |
3f5e1824 | 1721 | break; |
35ea11ff | 1722 | |
35ea11ff | 1723 | ret = 0; |
9bedc7f7 HV |
1724 | if (ops->vidioc_g_std) |
1725 | ret = ops->vidioc_g_std(file, fh, &std); | |
9bedc7f7 HV |
1726 | if (ret == 0) |
1727 | v4l2_video_std_frame_period(std, | |
1728 | &p->parm.capture.timeperframe); | |
35ea11ff HV |
1729 | } |
1730 | ||
1731 | dbgarg(cmd, "type=%d\n", p->type); | |
1732 | break; | |
1733 | } | |
1734 | case VIDIOC_S_PARM: | |
1735 | { | |
1736 | struct v4l2_streamparm *p = arg; | |
1737 | ||
93d5a30b HV |
1738 | if (ret_prio) { |
1739 | ret = ret_prio; | |
1740 | break; | |
1741 | } | |
34796bc0 TP |
1742 | ret = check_fmt(ops, p->type); |
1743 | if (ret) | |
1744 | break; | |
1745 | ||
35ea11ff | 1746 | dbgarg(cmd, "type=%d\n", p->type); |
a399810c | 1747 | ret = ops->vidioc_s_parm(file, fh, p); |
35ea11ff HV |
1748 | break; |
1749 | } | |
1750 | case VIDIOC_G_TUNER: | |
1751 | { | |
1752 | struct v4l2_tuner *p = arg; | |
35ea11ff | 1753 | |
227690df HV |
1754 | p->type = (vfd->vfl_type == VFL_TYPE_RADIO) ? |
1755 | V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV; | |
a399810c | 1756 | ret = ops->vidioc_g_tuner(file, fh, p); |
35ea11ff HV |
1757 | if (!ret) |
1758 | dbgarg(cmd, "index=%d, name=%s, type=%d, " | |
1759 | "capability=0x%x, rangelow=%d, " | |
1760 | "rangehigh=%d, signal=%d, afc=%d, " | |
1761 | "rxsubchans=0x%x, audmode=%d\n", | |
1762 | p->index, p->name, p->type, | |
1763 | p->capability, p->rangelow, | |
1764 | p->rangehigh, p->signal, p->afc, | |
1765 | p->rxsubchans, p->audmode); | |
1766 | break; | |
1767 | } | |
1768 | case VIDIOC_S_TUNER: | |
1769 | { | |
1770 | struct v4l2_tuner *p = arg; | |
1771 | ||
93d5a30b HV |
1772 | if (ret_prio) { |
1773 | ret = ret_prio; | |
1774 | break; | |
1775 | } | |
227690df HV |
1776 | p->type = (vfd->vfl_type == VFL_TYPE_RADIO) ? |
1777 | V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV; | |
35ea11ff HV |
1778 | dbgarg(cmd, "index=%d, name=%s, type=%d, " |
1779 | "capability=0x%x, rangelow=%d, " | |
1780 | "rangehigh=%d, signal=%d, afc=%d, " | |
1781 | "rxsubchans=0x%x, audmode=%d\n", | |
1782 | p->index, p->name, p->type, | |
1783 | p->capability, p->rangelow, | |
1784 | p->rangehigh, p->signal, p->afc, | |
1785 | p->rxsubchans, p->audmode); | |
a399810c | 1786 | ret = ops->vidioc_s_tuner(file, fh, p); |
35ea11ff HV |
1787 | break; |
1788 | } | |
1789 | case VIDIOC_G_FREQUENCY: | |
1790 | { | |
1791 | struct v4l2_frequency *p = arg; | |
1792 | ||
227690df HV |
1793 | p->type = (vfd->vfl_type == VFL_TYPE_RADIO) ? |
1794 | V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV; | |
a399810c | 1795 | ret = ops->vidioc_g_frequency(file, fh, p); |
35ea11ff HV |
1796 | if (!ret) |
1797 | dbgarg(cmd, "tuner=%d, type=%d, frequency=%d\n", | |
1798 | p->tuner, p->type, p->frequency); | |
1799 | break; | |
1800 | } | |
1801 | case VIDIOC_S_FREQUENCY: | |
1802 | { | |
1803 | struct v4l2_frequency *p = arg; | |
aa07eec5 | 1804 | enum v4l2_tuner_type type; |
35ea11ff | 1805 | |
93d5a30b HV |
1806 | if (ret_prio) { |
1807 | ret = ret_prio; | |
1808 | break; | |
1809 | } | |
aa07eec5 HV |
1810 | type = (vfd->vfl_type == VFL_TYPE_RADIO) ? |
1811 | V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV; | |
35ea11ff HV |
1812 | dbgarg(cmd, "tuner=%d, type=%d, frequency=%d\n", |
1813 | p->tuner, p->type, p->frequency); | |
aa07eec5 HV |
1814 | if (p->type != type) |
1815 | ret = -EINVAL; | |
1816 | else | |
1817 | ret = ops->vidioc_s_frequency(file, fh, p); | |
35ea11ff HV |
1818 | break; |
1819 | } | |
1820 | case VIDIOC_G_SLICED_VBI_CAP: | |
1821 | { | |
1822 | struct v4l2_sliced_vbi_cap *p = arg; | |
35ea11ff | 1823 | |
19c96e4b TP |
1824 | /* Clear up to type, everything after type is zerod already */ |
1825 | memset(p, 0, offsetof(struct v4l2_sliced_vbi_cap, type)); | |
1826 | ||
35ea11ff | 1827 | dbgarg(cmd, "type=%s\n", prt_names(p->type, v4l2_type_names)); |
a399810c | 1828 | ret = ops->vidioc_g_sliced_vbi_cap(file, fh, p); |
35ea11ff HV |
1829 | if (!ret) |
1830 | dbgarg2("service_set=%d\n", p->service_set); | |
1831 | break; | |
1832 | } | |
1833 | case VIDIOC_LOG_STATUS: | |
1834 | { | |
e2ecb257 HV |
1835 | if (vfd->v4l2_dev) |
1836 | pr_info("%s: ================= START STATUS =================\n", | |
1837 | vfd->v4l2_dev->name); | |
a399810c | 1838 | ret = ops->vidioc_log_status(file, fh); |
e2ecb257 HV |
1839 | if (vfd->v4l2_dev) |
1840 | pr_info("%s: ================== END STATUS ==================\n", | |
1841 | vfd->v4l2_dev->name); | |
35ea11ff HV |
1842 | break; |
1843 | } | |
35ea11ff HV |
1844 | case VIDIOC_DBG_G_REGISTER: |
1845 | { | |
8ab75e3e | 1846 | #ifdef CONFIG_VIDEO_ADV_DEBUG |
aecde8b5 | 1847 | struct v4l2_dbg_register *p = arg; |
35ea11ff | 1848 | |
48ea0be0 HV |
1849 | if (!capable(CAP_SYS_ADMIN)) |
1850 | ret = -EPERM; | |
1851 | else | |
1852 | ret = ops->vidioc_g_register(file, fh, p); | |
8ab75e3e | 1853 | #endif |
35ea11ff HV |
1854 | break; |
1855 | } | |
1856 | case VIDIOC_DBG_S_REGISTER: | |
1857 | { | |
8ab75e3e | 1858 | #ifdef CONFIG_VIDEO_ADV_DEBUG |
aecde8b5 | 1859 | struct v4l2_dbg_register *p = arg; |
35ea11ff | 1860 | |
48ea0be0 HV |
1861 | if (!capable(CAP_SYS_ADMIN)) |
1862 | ret = -EPERM; | |
1863 | else | |
1864 | ret = ops->vidioc_s_register(file, fh, p); | |
8ab75e3e | 1865 | #endif |
35ea11ff HV |
1866 | break; |
1867 | } | |
aecde8b5 | 1868 | case VIDIOC_DBG_G_CHIP_IDENT: |
35ea11ff | 1869 | { |
aecde8b5 | 1870 | struct v4l2_dbg_chip_ident *p = arg; |
35ea11ff | 1871 | |
80b36e0f HV |
1872 | p->ident = V4L2_IDENT_NONE; |
1873 | p->revision = 0; | |
a399810c | 1874 | ret = ops->vidioc_g_chip_ident(file, fh, p); |
35ea11ff HV |
1875 | if (!ret) |
1876 | dbgarg(cmd, "chip_ident=%u, revision=0x%x\n", p->ident, p->revision); | |
1877 | break; | |
1878 | } | |
35ea11ff HV |
1879 | case VIDIOC_S_HW_FREQ_SEEK: |
1880 | { | |
1881 | struct v4l2_hw_freq_seek *p = arg; | |
a6cf90a9 | 1882 | enum v4l2_tuner_type type; |
35ea11ff | 1883 | |
93d5a30b HV |
1884 | if (ret_prio) { |
1885 | ret = ret_prio; | |
1886 | break; | |
1887 | } | |
a6cf90a9 HV |
1888 | type = (vfd->vfl_type == VFL_TYPE_RADIO) ? |
1889 | V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV; | |
35ea11ff | 1890 | dbgarg(cmd, |
a6cf90a9 HV |
1891 | "tuner=%u, type=%u, seek_upward=%u, wrap_around=%u, spacing=%u\n", |
1892 | p->tuner, p->type, p->seek_upward, p->wrap_around, p->spacing); | |
1893 | if (p->type != type) | |
1894 | ret = -EINVAL; | |
1895 | else | |
1896 | ret = ops->vidioc_s_hw_freq_seek(file, fh, p); | |
a399810c HV |
1897 | break; |
1898 | } | |
74d83fa0 MCC |
1899 | case VIDIOC_ENUM_FRAMESIZES: |
1900 | { | |
1901 | struct v4l2_frmsizeenum *p = arg; | |
1902 | ||
74d83fa0 MCC |
1903 | ret = ops->vidioc_enum_framesizes(file, fh, p); |
1904 | dbgarg(cmd, | |
d1afe425 MCC |
1905 | "index=%d, pixelformat=%c%c%c%c, type=%d ", |
1906 | p->index, | |
1907 | (p->pixel_format & 0xff), | |
1908 | (p->pixel_format >> 8) & 0xff, | |
1909 | (p->pixel_format >> 16) & 0xff, | |
1910 | (p->pixel_format >> 24) & 0xff, | |
1911 | p->type); | |
74d83fa0 MCC |
1912 | switch (p->type) { |
1913 | case V4L2_FRMSIZE_TYPE_DISCRETE: | |
d33fbcbb | 1914 | dbgarg3("width = %d, height=%d\n", |
74d83fa0 MCC |
1915 | p->discrete.width, p->discrete.height); |
1916 | break; | |
1917 | case V4L2_FRMSIZE_TYPE_STEPWISE: | |
d33fbcbb | 1918 | dbgarg3("min %dx%d, max %dx%d, step %dx%d\n", |
74d83fa0 MCC |
1919 | p->stepwise.min_width, p->stepwise.min_height, |
1920 | p->stepwise.step_width, p->stepwise.step_height, | |
1921 | p->stepwise.max_width, p->stepwise.max_height); | |
1922 | break; | |
1923 | case V4L2_FRMSIZE_TYPE_CONTINUOUS: | |
d33fbcbb | 1924 | dbgarg3("continuous\n"); |
74d83fa0 MCC |
1925 | break; |
1926 | default: | |
d33fbcbb | 1927 | dbgarg3("- Unknown type!\n"); |
74d83fa0 MCC |
1928 | } |
1929 | ||
1930 | break; | |
1931 | } | |
1932 | case VIDIOC_ENUM_FRAMEINTERVALS: | |
1933 | { | |
1934 | struct v4l2_frmivalenum *p = arg; | |
1935 | ||
74d83fa0 MCC |
1936 | ret = ops->vidioc_enum_frameintervals(file, fh, p); |
1937 | dbgarg(cmd, | |
1938 | "index=%d, pixelformat=%d, width=%d, height=%d, type=%d ", | |
1939 | p->index, p->pixel_format, | |
1940 | p->width, p->height, p->type); | |
1941 | switch (p->type) { | |
1942 | case V4L2_FRMIVAL_TYPE_DISCRETE: | |
1943 | dbgarg2("fps=%d/%d\n", | |
1944 | p->discrete.numerator, | |
1945 | p->discrete.denominator); | |
1946 | break; | |
1947 | case V4L2_FRMIVAL_TYPE_STEPWISE: | |
1958578d MCC |
1948 | dbgarg2("min=%d/%d, max=%d/%d, step=%d/%d\n", |
1949 | p->stepwise.min.numerator, | |
1950 | p->stepwise.min.denominator, | |
1951 | p->stepwise.max.numerator, | |
1952 | p->stepwise.max.denominator, | |
1953 | p->stepwise.step.numerator, | |
1954 | p->stepwise.step.denominator); | |
74d83fa0 MCC |
1955 | break; |
1956 | case V4L2_FRMIVAL_TYPE_CONTINUOUS: | |
1957 | dbgarg2("continuous\n"); | |
1958 | break; | |
1959 | default: | |
1960 | dbgarg2("- Unknown type!\n"); | |
1961 | } | |
1962 | break; | |
1963 | } | |
b6456c0c MK |
1964 | case VIDIOC_ENUM_DV_PRESETS: |
1965 | { | |
1966 | struct v4l2_dv_enum_preset *p = arg; | |
1967 | ||
b6456c0c MK |
1968 | ret = ops->vidioc_enum_dv_presets(file, fh, p); |
1969 | if (!ret) | |
1970 | dbgarg(cmd, | |
1971 | "index=%d, preset=%d, name=%s, width=%d," | |
1972 | " height=%d ", | |
1973 | p->index, p->preset, p->name, p->width, | |
1974 | p->height); | |
1975 | break; | |
1976 | } | |
1977 | case VIDIOC_S_DV_PRESET: | |
1978 | { | |
1979 | struct v4l2_dv_preset *p = arg; | |
1980 | ||
93d5a30b HV |
1981 | if (ret_prio) { |
1982 | ret = ret_prio; | |
1983 | break; | |
1984 | } | |
b6456c0c MK |
1985 | |
1986 | dbgarg(cmd, "preset=%d\n", p->preset); | |
1987 | ret = ops->vidioc_s_dv_preset(file, fh, p); | |
1988 | break; | |
1989 | } | |
1990 | case VIDIOC_G_DV_PRESET: | |
1991 | { | |
1992 | struct v4l2_dv_preset *p = arg; | |
1993 | ||
b6456c0c MK |
1994 | ret = ops->vidioc_g_dv_preset(file, fh, p); |
1995 | if (!ret) | |
1996 | dbgarg(cmd, "preset=%d\n", p->preset); | |
1997 | break; | |
1998 | } | |
1999 | case VIDIOC_QUERY_DV_PRESET: | |
2000 | { | |
2001 | struct v4l2_dv_preset *p = arg; | |
2002 | ||
b6456c0c MK |
2003 | ret = ops->vidioc_query_dv_preset(file, fh, p); |
2004 | if (!ret) | |
2005 | dbgarg(cmd, "preset=%d\n", p->preset); | |
2006 | break; | |
2007 | } | |
2008 | case VIDIOC_S_DV_TIMINGS: | |
2009 | { | |
2010 | struct v4l2_dv_timings *p = arg; | |
2011 | ||
93d5a30b HV |
2012 | if (ret_prio) { |
2013 | ret = ret_prio; | |
2014 | break; | |
2015 | } | |
b6456c0c MK |
2016 | |
2017 | switch (p->type) { | |
2018 | case V4L2_DV_BT_656_1120: | |
2019 | dbgarg2("bt-656/1120:interlaced=%d, pixelclock=%lld," | |
2020 | " width=%d, height=%d, polarities=%x," | |
2021 | " hfrontporch=%d, hsync=%d, hbackporch=%d," | |
2022 | " vfrontporch=%d, vsync=%d, vbackporch=%d," | |
2023 | " il_vfrontporch=%d, il_vsync=%d," | |
2024 | " il_vbackporch=%d\n", | |
2025 | p->bt.interlaced, p->bt.pixelclock, | |
2026 | p->bt.width, p->bt.height, p->bt.polarities, | |
2027 | p->bt.hfrontporch, p->bt.hsync, | |
2028 | p->bt.hbackporch, p->bt.vfrontporch, | |
2029 | p->bt.vsync, p->bt.vbackporch, | |
2030 | p->bt.il_vfrontporch, p->bt.il_vsync, | |
2031 | p->bt.il_vbackporch); | |
2032 | ret = ops->vidioc_s_dv_timings(file, fh, p); | |
2033 | break; | |
2034 | default: | |
2035 | dbgarg2("Unknown type %d!\n", p->type); | |
2036 | break; | |
2037 | } | |
2038 | break; | |
2039 | } | |
2040 | case VIDIOC_G_DV_TIMINGS: | |
2041 | { | |
2042 | struct v4l2_dv_timings *p = arg; | |
2043 | ||
b6456c0c MK |
2044 | ret = ops->vidioc_g_dv_timings(file, fh, p); |
2045 | if (!ret) { | |
2046 | switch (p->type) { | |
2047 | case V4L2_DV_BT_656_1120: | |
2048 | dbgarg2("bt-656/1120:interlaced=%d," | |
2049 | " pixelclock=%lld," | |
2050 | " width=%d, height=%d, polarities=%x," | |
2051 | " hfrontporch=%d, hsync=%d," | |
2052 | " hbackporch=%d, vfrontporch=%d," | |
2053 | " vsync=%d, vbackporch=%d," | |
2054 | " il_vfrontporch=%d, il_vsync=%d," | |
2055 | " il_vbackporch=%d\n", | |
2056 | p->bt.interlaced, p->bt.pixelclock, | |
2057 | p->bt.width, p->bt.height, | |
2058 | p->bt.polarities, p->bt.hfrontporch, | |
2059 | p->bt.hsync, p->bt.hbackporch, | |
2060 | p->bt.vfrontporch, p->bt.vsync, | |
2061 | p->bt.vbackporch, p->bt.il_vfrontporch, | |
2062 | p->bt.il_vsync, p->bt.il_vbackporch); | |
2063 | break; | |
2064 | default: | |
2065 | dbgarg2("Unknown type %d!\n", p->type); | |
2066 | break; | |
2067 | } | |
2068 | } | |
2069 | break; | |
2070 | } | |
d3d7c963 SA |
2071 | case VIDIOC_DQEVENT: |
2072 | { | |
2073 | struct v4l2_event *ev = arg; | |
2074 | ||
d3d7c963 SA |
2075 | ret = v4l2_event_dequeue(fh, ev, file->f_flags & O_NONBLOCK); |
2076 | if (ret < 0) { | |
2077 | dbgarg(cmd, "no pending events?"); | |
2078 | break; | |
2079 | } | |
2080 | dbgarg(cmd, | |
2081 | "pending=%d, type=0x%8.8x, sequence=%d, " | |
2082 | "timestamp=%lu.%9.9lu ", | |
2083 | ev->pending, ev->type, ev->sequence, | |
2084 | ev->timestamp.tv_sec, ev->timestamp.tv_nsec); | |
2085 | break; | |
2086 | } | |
2087 | case VIDIOC_SUBSCRIBE_EVENT: | |
2088 | { | |
2089 | struct v4l2_event_subscription *sub = arg; | |
2090 | ||
d3d7c963 SA |
2091 | ret = ops->vidioc_subscribe_event(fh, sub); |
2092 | if (ret < 0) { | |
2093 | dbgarg(cmd, "failed, ret=%ld", ret); | |
2094 | break; | |
2095 | } | |
2096 | dbgarg(cmd, "type=0x%8.8x", sub->type); | |
2097 | break; | |
2098 | } | |
2099 | case VIDIOC_UNSUBSCRIBE_EVENT: | |
2100 | { | |
2101 | struct v4l2_event_subscription *sub = arg; | |
2102 | ||
d3d7c963 SA |
2103 | ret = ops->vidioc_unsubscribe_event(fh, sub); |
2104 | if (ret < 0) { | |
2105 | dbgarg(cmd, "failed, ret=%ld", ret); | |
2106 | break; | |
2107 | } | |
2108 | dbgarg(cmd, "type=0x%8.8x", sub->type); | |
2109 | break; | |
2110 | } | |
2150158b GL |
2111 | case VIDIOC_CREATE_BUFS: |
2112 | { | |
2113 | struct v4l2_create_buffers *create = arg; | |
2114 | ||
2150158b GL |
2115 | if (ret_prio) { |
2116 | ret = ret_prio; | |
2117 | break; | |
2118 | } | |
2119 | ret = check_fmt(ops, create->format.type); | |
2120 | if (ret) | |
2121 | break; | |
2122 | ||
2123 | ret = ops->vidioc_create_bufs(file, fh, create); | |
2124 | ||
2125 | dbgarg(cmd, "count=%d @ %d\n", create->count, create->index); | |
2126 | break; | |
2127 | } | |
2128 | case VIDIOC_PREPARE_BUF: | |
2129 | { | |
2130 | struct v4l2_buffer *b = arg; | |
2131 | ||
2150158b GL |
2132 | ret = check_fmt(ops, b->type); |
2133 | if (ret) | |
2134 | break; | |
2135 | ||
2136 | ret = ops->vidioc_prepare_buf(file, fh, b); | |
2137 | ||
2138 | dbgarg(cmd, "index=%d", b->index); | |
2139 | break; | |
2140 | } | |
a399810c | 2141 | default: |
a399810c HV |
2142 | if (!ops->vidioc_default) |
2143 | break; | |
93d5a30b | 2144 | ret = ops->vidioc_default(file, fh, ret_prio >= 0, cmd, arg); |
35ea11ff | 2145 | break; |
35ea11ff HV |
2146 | } /* switch */ |
2147 | ||
2148 | if (vfd->debug & V4L2_DEBUG_IOCTL_ARG) { | |
2149 | if (ret < 0) { | |
2150 | v4l_print_ioctl(vfd->name, cmd); | |
069b7479 | 2151 | printk(KERN_CONT " error %ld\n", ret); |
35ea11ff HV |
2152 | } |
2153 | } | |
2154 | ||
2155 | return ret; | |
2156 | } | |
2157 | ||
19c96e4b TP |
2158 | /* In some cases, only a few fields are used as input, i.e. when the app sets |
2159 | * "index" and then the driver fills in the rest of the structure for the thing | |
2160 | * with that index. We only need to copy up the first non-input field. */ | |
2161 | static unsigned long cmd_input_size(unsigned int cmd) | |
2162 | { | |
2163 | /* Size of structure up to and including 'field' */ | |
9f1a693f HV |
2164 | #define CMDINSIZE(cmd, type, field) \ |
2165 | case VIDIOC_##cmd: \ | |
2166 | return offsetof(struct v4l2_##type, field) + \ | |
2167 | sizeof(((struct v4l2_##type *)0)->field); | |
19c96e4b | 2168 | |
9f1a693f | 2169 | switch (cmd) { |
19c96e4b TP |
2170 | CMDINSIZE(ENUM_FMT, fmtdesc, type); |
2171 | CMDINSIZE(G_FMT, format, type); | |
d14e6d76 | 2172 | CMDINSIZE(QUERYBUF, buffer, length); |
19c96e4b TP |
2173 | CMDINSIZE(G_PARM, streamparm, type); |
2174 | CMDINSIZE(ENUMSTD, standard, index); | |
2175 | CMDINSIZE(ENUMINPUT, input, index); | |
2176 | CMDINSIZE(G_CTRL, control, id); | |
2177 | CMDINSIZE(G_TUNER, tuner, index); | |
2178 | CMDINSIZE(QUERYCTRL, queryctrl, id); | |
2179 | CMDINSIZE(QUERYMENU, querymenu, index); | |
2180 | CMDINSIZE(ENUMOUTPUT, output, index); | |
2181 | CMDINSIZE(G_MODULATOR, modulator, index); | |
2182 | CMDINSIZE(G_FREQUENCY, frequency, tuner); | |
2183 | CMDINSIZE(CROPCAP, cropcap, type); | |
2184 | CMDINSIZE(G_CROP, crop, type); | |
2185 | CMDINSIZE(ENUMAUDIO, audio, index); | |
2186 | CMDINSIZE(ENUMAUDOUT, audioout, index); | |
2187 | CMDINSIZE(ENCODER_CMD, encoder_cmd, flags); | |
2188 | CMDINSIZE(TRY_ENCODER_CMD, encoder_cmd, flags); | |
2189 | CMDINSIZE(G_SLICED_VBI_CAP, sliced_vbi_cap, type); | |
2190 | CMDINSIZE(ENUM_FRAMESIZES, frmsizeenum, pixel_format); | |
2191 | CMDINSIZE(ENUM_FRAMEINTERVALS, frmivalenum, height); | |
2192 | default: | |
2193 | return _IOC_SIZE(cmd); | |
2194 | } | |
2195 | } | |
2196 | ||
d14e6d76 PO |
2197 | static int check_array_args(unsigned int cmd, void *parg, size_t *array_size, |
2198 | void * __user *user_ptr, void ***kernel_ptr) | |
2199 | { | |
2200 | int ret = 0; | |
2201 | ||
2202 | switch (cmd) { | |
2203 | case VIDIOC_QUERYBUF: | |
2204 | case VIDIOC_QBUF: | |
2205 | case VIDIOC_DQBUF: { | |
2206 | struct v4l2_buffer *buf = parg; | |
2207 | ||
2208 | if (V4L2_TYPE_IS_MULTIPLANAR(buf->type) && buf->length > 0) { | |
2209 | if (buf->length > VIDEO_MAX_PLANES) { | |
2210 | ret = -EINVAL; | |
2211 | break; | |
2212 | } | |
2213 | *user_ptr = (void __user *)buf->m.planes; | |
2ef40370 | 2214 | *kernel_ptr = (void *)&buf->m.planes; |
d14e6d76 PO |
2215 | *array_size = sizeof(struct v4l2_plane) * buf->length; |
2216 | ret = 1; | |
2217 | } | |
2218 | break; | |
2219 | } | |
2220 | ||
2221 | case VIDIOC_S_EXT_CTRLS: | |
2222 | case VIDIOC_G_EXT_CTRLS: | |
2223 | case VIDIOC_TRY_EXT_CTRLS: { | |
2224 | struct v4l2_ext_controls *ctrls = parg; | |
2225 | ||
2226 | if (ctrls->count != 0) { | |
6c06108b DC |
2227 | if (ctrls->count > V4L2_CID_MAX_CTRLS) { |
2228 | ret = -EINVAL; | |
2229 | break; | |
2230 | } | |
d14e6d76 | 2231 | *user_ptr = (void __user *)ctrls->controls; |
2ef40370 | 2232 | *kernel_ptr = (void *)&ctrls->controls; |
d14e6d76 PO |
2233 | *array_size = sizeof(struct v4l2_ext_control) |
2234 | * ctrls->count; | |
2235 | ret = 1; | |
2236 | } | |
2237 | break; | |
2238 | } | |
2239 | } | |
2240 | ||
2241 | return ret; | |
2242 | } | |
2243 | ||
fc0a8079 LP |
2244 | long |
2245 | video_usercopy(struct file *file, unsigned int cmd, unsigned long arg, | |
2246 | v4l2_kioctl func) | |
35ea11ff HV |
2247 | { |
2248 | char sbuf[128]; | |
2249 | void *mbuf = NULL; | |
1d94aa36 | 2250 | void *parg = (void *)arg; |
069b7479 | 2251 | long err = -EINVAL; |
d14e6d76 PO |
2252 | bool has_array_args; |
2253 | size_t array_size = 0; | |
35ea11ff | 2254 | void __user *user_ptr = NULL; |
d14e6d76 | 2255 | void **kernel_ptr = NULL; |
35ea11ff | 2256 | |
35ea11ff | 2257 | /* Copy arguments into temp kernel buffer */ |
337f9d20 | 2258 | if (_IOC_DIR(cmd) != _IOC_NONE) { |
35ea11ff HV |
2259 | if (_IOC_SIZE(cmd) <= sizeof(sbuf)) { |
2260 | parg = sbuf; | |
2261 | } else { | |
2262 | /* too big to allocate from stack */ | |
2263 | mbuf = kmalloc(_IOC_SIZE(cmd), GFP_KERNEL); | |
2264 | if (NULL == mbuf) | |
2265 | return -ENOMEM; | |
2266 | parg = mbuf; | |
2267 | } | |
2268 | ||
2269 | err = -EFAULT; | |
19c96e4b TP |
2270 | if (_IOC_DIR(cmd) & _IOC_WRITE) { |
2271 | unsigned long n = cmd_input_size(cmd); | |
2272 | ||
2273 | if (copy_from_user(parg, (void __user *)arg, n)) | |
35ea11ff | 2274 | goto out; |
19c96e4b TP |
2275 | |
2276 | /* zero out anything we don't copy from userspace */ | |
2277 | if (n < _IOC_SIZE(cmd)) | |
2278 | memset((u8 *)parg + n, 0, _IOC_SIZE(cmd) - n); | |
337f9d20 TP |
2279 | } else { |
2280 | /* read-only ioctl */ | |
2281 | memset(parg, 0, _IOC_SIZE(cmd)); | |
19c96e4b | 2282 | } |
35ea11ff HV |
2283 | } |
2284 | ||
d14e6d76 PO |
2285 | err = check_array_args(cmd, parg, &array_size, &user_ptr, &kernel_ptr); |
2286 | if (err < 0) | |
2287 | goto out; | |
2288 | has_array_args = err; | |
35ea11ff | 2289 | |
d14e6d76 PO |
2290 | if (has_array_args) { |
2291 | /* | |
2292 | * When adding new types of array args, make sure that the | |
2293 | * parent argument to ioctl (which contains the pointer to the | |
2294 | * array) fits into sbuf (so that mbuf will still remain | |
2295 | * unused up to here). | |
2296 | */ | |
2297 | mbuf = kmalloc(array_size, GFP_KERNEL); | |
2298 | err = -ENOMEM; | |
2299 | if (NULL == mbuf) | |
2300 | goto out_array_args; | |
2301 | err = -EFAULT; | |
2302 | if (copy_from_user(mbuf, user_ptr, array_size)) | |
2303 | goto out_array_args; | |
2304 | *kernel_ptr = mbuf; | |
35ea11ff HV |
2305 | } |
2306 | ||
2307 | /* Handles IOCTL */ | |
fc0a8079 | 2308 | err = func(file, cmd, parg); |
35ea11ff | 2309 | if (err == -ENOIOCTLCMD) |
02bbb814 | 2310 | err = -ENOTTY; |
35ea11ff | 2311 | |
d14e6d76 PO |
2312 | if (has_array_args) { |
2313 | *kernel_ptr = user_ptr; | |
2314 | if (copy_to_user(user_ptr, mbuf, array_size)) | |
35ea11ff | 2315 | err = -EFAULT; |
d14e6d76 | 2316 | goto out_array_args; |
35ea11ff HV |
2317 | } |
2318 | if (err < 0) | |
2319 | goto out; | |
2320 | ||
d14e6d76 | 2321 | out_array_args: |
35ea11ff HV |
2322 | /* Copy results into user buffer */ |
2323 | switch (_IOC_DIR(cmd)) { | |
2324 | case _IOC_READ: | |
2325 | case (_IOC_WRITE | _IOC_READ): | |
2326 | if (copy_to_user((void __user *)arg, parg, _IOC_SIZE(cmd))) | |
2327 | err = -EFAULT; | |
2328 | break; | |
2329 | } | |
2330 | ||
2331 | out: | |
2332 | kfree(mbuf); | |
2333 | return err; | |
2334 | } | |
fc0a8079 LP |
2335 | EXPORT_SYMBOL(video_usercopy); |
2336 | ||
2337 | long video_ioctl2(struct file *file, | |
2338 | unsigned int cmd, unsigned long arg) | |
2339 | { | |
2340 | return video_usercopy(file, cmd, arg, __video_do_ioctl); | |
2341 | } | |
8a522c91 | 2342 | EXPORT_SYMBOL(video_ioctl2); |