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> | |
16 | #include <linux/types.h> | |
17 | #include <linux/kernel.h> | |
18 | ||
19 | #define __OLD_VIDIOC_ /* To allow fixing old calls */ | |
7e0a16f6 | 20 | #include <linux/videodev.h> |
35ea11ff HV |
21 | #include <linux/videodev2.h> |
22 | ||
23 | #ifdef CONFIG_VIDEO_V4L1 | |
24 | #include <linux/videodev.h> | |
25 | #endif | |
26 | #include <media/v4l2-common.h> | |
27 | #include <media/v4l2-ioctl.h> | |
80b36e0f | 28 | #include <media/v4l2-chip-ident.h> |
35ea11ff HV |
29 | |
30 | #define dbgarg(cmd, fmt, arg...) \ | |
31 | do { \ | |
32 | if (vfd->debug & V4L2_DEBUG_IOCTL_ARG) { \ | |
33 | printk(KERN_DEBUG "%s: ", vfd->name); \ | |
34 | v4l_printk_ioctl(cmd); \ | |
35 | printk(" " fmt, ## arg); \ | |
36 | } \ | |
37 | } while (0) | |
38 | ||
39 | #define dbgarg2(fmt, arg...) \ | |
40 | do { \ | |
41 | if (vfd->debug & V4L2_DEBUG_IOCTL_ARG) \ | |
42 | printk(KERN_DEBUG "%s: " fmt, vfd->name, ## arg);\ | |
43 | } while (0) | |
44 | ||
d33fbcbb MCC |
45 | #define dbgarg3(fmt, arg...) \ |
46 | do { \ | |
47 | if (vfd->debug & V4L2_DEBUG_IOCTL_ARG) \ | |
48 | printk(KERN_CONT "%s: " fmt, vfd->name, ## arg);\ | |
49 | } while (0) | |
50 | ||
7ecc0cf9 TP |
51 | /* Zero out the end of the struct pointed to by p. Everthing after, but |
52 | * not including, the specified field is cleared. */ | |
53 | #define CLEAR_AFTER_FIELD(p, field) \ | |
54 | memset((u8 *)(p) + offsetof(typeof(*(p)), field) + sizeof((p)->field), \ | |
55 | 0, sizeof(*(p)) - offsetof(typeof(*(p)), field) - sizeof((p)->field)) | |
56 | ||
35ea11ff HV |
57 | struct std_descr { |
58 | v4l2_std_id std; | |
59 | const char *descr; | |
60 | }; | |
61 | ||
62 | static const struct std_descr standards[] = { | |
63 | { V4L2_STD_NTSC, "NTSC" }, | |
64 | { V4L2_STD_NTSC_M, "NTSC-M" }, | |
65 | { V4L2_STD_NTSC_M_JP, "NTSC-M-JP" }, | |
66 | { V4L2_STD_NTSC_M_KR, "NTSC-M-KR" }, | |
67 | { V4L2_STD_NTSC_443, "NTSC-443" }, | |
68 | { V4L2_STD_PAL, "PAL" }, | |
69 | { V4L2_STD_PAL_BG, "PAL-BG" }, | |
70 | { V4L2_STD_PAL_B, "PAL-B" }, | |
71 | { V4L2_STD_PAL_B1, "PAL-B1" }, | |
72 | { V4L2_STD_PAL_G, "PAL-G" }, | |
73 | { V4L2_STD_PAL_H, "PAL-H" }, | |
74 | { V4L2_STD_PAL_I, "PAL-I" }, | |
75 | { V4L2_STD_PAL_DK, "PAL-DK" }, | |
76 | { V4L2_STD_PAL_D, "PAL-D" }, | |
77 | { V4L2_STD_PAL_D1, "PAL-D1" }, | |
78 | { V4L2_STD_PAL_K, "PAL-K" }, | |
79 | { V4L2_STD_PAL_M, "PAL-M" }, | |
80 | { V4L2_STD_PAL_N, "PAL-N" }, | |
81 | { V4L2_STD_PAL_Nc, "PAL-Nc" }, | |
82 | { V4L2_STD_PAL_60, "PAL-60" }, | |
83 | { V4L2_STD_SECAM, "SECAM" }, | |
84 | { V4L2_STD_SECAM_B, "SECAM-B" }, | |
85 | { V4L2_STD_SECAM_G, "SECAM-G" }, | |
86 | { V4L2_STD_SECAM_H, "SECAM-H" }, | |
87 | { V4L2_STD_SECAM_DK, "SECAM-DK" }, | |
88 | { V4L2_STD_SECAM_D, "SECAM-D" }, | |
89 | { V4L2_STD_SECAM_K, "SECAM-K" }, | |
90 | { V4L2_STD_SECAM_K1, "SECAM-K1" }, | |
91 | { V4L2_STD_SECAM_L, "SECAM-L" }, | |
92 | { V4L2_STD_SECAM_LC, "SECAM-Lc" }, | |
93 | { 0, "Unknown" } | |
94 | }; | |
95 | ||
96 | /* video4linux standard ID conversion to standard name | |
97 | */ | |
98 | const char *v4l2_norm_to_name(v4l2_std_id id) | |
99 | { | |
100 | u32 myid = id; | |
101 | int i; | |
102 | ||
103 | /* HACK: ppc32 architecture doesn't have __ucmpdi2 function to handle | |
104 | 64 bit comparations. So, on that architecture, with some gcc | |
105 | variants, compilation fails. Currently, the max value is 30bit wide. | |
106 | */ | |
107 | BUG_ON(myid != id); | |
108 | ||
109 | for (i = 0; standards[i].std; i++) | |
110 | if (myid == standards[i].std) | |
111 | break; | |
112 | return standards[i].descr; | |
113 | } | |
114 | EXPORT_SYMBOL(v4l2_norm_to_name); | |
115 | ||
51f0b8d5 TP |
116 | /* Returns frame period for the given standard */ |
117 | void v4l2_video_std_frame_period(int id, struct v4l2_fract *frameperiod) | |
118 | { | |
119 | if (id & V4L2_STD_525_60) { | |
120 | frameperiod->numerator = 1001; | |
121 | frameperiod->denominator = 30000; | |
122 | } else { | |
123 | frameperiod->numerator = 1; | |
124 | frameperiod->denominator = 25; | |
125 | } | |
126 | } | |
127 | EXPORT_SYMBOL(v4l2_video_std_frame_period); | |
128 | ||
35ea11ff HV |
129 | /* Fill in the fields of a v4l2_standard structure according to the |
130 | 'id' and 'transmission' parameters. Returns negative on error. */ | |
131 | int v4l2_video_std_construct(struct v4l2_standard *vs, | |
132 | int id, const char *name) | |
133 | { | |
51f0b8d5 TP |
134 | vs->id = id; |
135 | v4l2_video_std_frame_period(id, &vs->frameperiod); | |
136 | vs->framelines = (id & V4L2_STD_525_60) ? 525 : 625; | |
35ea11ff HV |
137 | strlcpy(vs->name, name, sizeof(vs->name)); |
138 | return 0; | |
139 | } | |
140 | EXPORT_SYMBOL(v4l2_video_std_construct); | |
141 | ||
142 | /* ----------------------------------------------------------------- */ | |
143 | /* some arrays for pretty-printing debug messages of enum types */ | |
144 | ||
145 | const char *v4l2_field_names[] = { | |
146 | [V4L2_FIELD_ANY] = "any", | |
147 | [V4L2_FIELD_NONE] = "none", | |
148 | [V4L2_FIELD_TOP] = "top", | |
149 | [V4L2_FIELD_BOTTOM] = "bottom", | |
150 | [V4L2_FIELD_INTERLACED] = "interlaced", | |
151 | [V4L2_FIELD_SEQ_TB] = "seq-tb", | |
152 | [V4L2_FIELD_SEQ_BT] = "seq-bt", | |
153 | [V4L2_FIELD_ALTERNATE] = "alternate", | |
154 | [V4L2_FIELD_INTERLACED_TB] = "interlaced-tb", | |
155 | [V4L2_FIELD_INTERLACED_BT] = "interlaced-bt", | |
156 | }; | |
157 | EXPORT_SYMBOL(v4l2_field_names); | |
158 | ||
159 | const char *v4l2_type_names[] = { | |
160 | [V4L2_BUF_TYPE_VIDEO_CAPTURE] = "vid-cap", | |
161 | [V4L2_BUF_TYPE_VIDEO_OVERLAY] = "vid-overlay", | |
162 | [V4L2_BUF_TYPE_VIDEO_OUTPUT] = "vid-out", | |
163 | [V4L2_BUF_TYPE_VBI_CAPTURE] = "vbi-cap", | |
164 | [V4L2_BUF_TYPE_VBI_OUTPUT] = "vbi-out", | |
165 | [V4L2_BUF_TYPE_SLICED_VBI_CAPTURE] = "sliced-vbi-cap", | |
166 | [V4L2_BUF_TYPE_SLICED_VBI_OUTPUT] = "sliced-vbi-out", | |
167 | [V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY] = "vid-out-overlay", | |
168 | }; | |
169 | EXPORT_SYMBOL(v4l2_type_names); | |
170 | ||
171 | static const char *v4l2_memory_names[] = { | |
172 | [V4L2_MEMORY_MMAP] = "mmap", | |
173 | [V4L2_MEMORY_USERPTR] = "userptr", | |
174 | [V4L2_MEMORY_OVERLAY] = "overlay", | |
175 | }; | |
176 | ||
177 | #define prt_names(a, arr) ((((a) >= 0) && ((a) < ARRAY_SIZE(arr))) ? \ | |
178 | arr[a] : "unknown") | |
179 | ||
180 | /* ------------------------------------------------------------------ */ | |
181 | /* debug help functions */ | |
182 | ||
183 | #ifdef CONFIG_VIDEO_V4L1_COMPAT | |
184 | static const char *v4l1_ioctls[] = { | |
185 | [_IOC_NR(VIDIOCGCAP)] = "VIDIOCGCAP", | |
186 | [_IOC_NR(VIDIOCGCHAN)] = "VIDIOCGCHAN", | |
187 | [_IOC_NR(VIDIOCSCHAN)] = "VIDIOCSCHAN", | |
188 | [_IOC_NR(VIDIOCGTUNER)] = "VIDIOCGTUNER", | |
189 | [_IOC_NR(VIDIOCSTUNER)] = "VIDIOCSTUNER", | |
190 | [_IOC_NR(VIDIOCGPICT)] = "VIDIOCGPICT", | |
191 | [_IOC_NR(VIDIOCSPICT)] = "VIDIOCSPICT", | |
192 | [_IOC_NR(VIDIOCCAPTURE)] = "VIDIOCCAPTURE", | |
193 | [_IOC_NR(VIDIOCGWIN)] = "VIDIOCGWIN", | |
194 | [_IOC_NR(VIDIOCSWIN)] = "VIDIOCSWIN", | |
195 | [_IOC_NR(VIDIOCGFBUF)] = "VIDIOCGFBUF", | |
196 | [_IOC_NR(VIDIOCSFBUF)] = "VIDIOCSFBUF", | |
197 | [_IOC_NR(VIDIOCKEY)] = "VIDIOCKEY", | |
198 | [_IOC_NR(VIDIOCGFREQ)] = "VIDIOCGFREQ", | |
199 | [_IOC_NR(VIDIOCSFREQ)] = "VIDIOCSFREQ", | |
200 | [_IOC_NR(VIDIOCGAUDIO)] = "VIDIOCGAUDIO", | |
201 | [_IOC_NR(VIDIOCSAUDIO)] = "VIDIOCSAUDIO", | |
202 | [_IOC_NR(VIDIOCSYNC)] = "VIDIOCSYNC", | |
203 | [_IOC_NR(VIDIOCMCAPTURE)] = "VIDIOCMCAPTURE", | |
204 | [_IOC_NR(VIDIOCGMBUF)] = "VIDIOCGMBUF", | |
205 | [_IOC_NR(VIDIOCGUNIT)] = "VIDIOCGUNIT", | |
206 | [_IOC_NR(VIDIOCGCAPTURE)] = "VIDIOCGCAPTURE", | |
207 | [_IOC_NR(VIDIOCSCAPTURE)] = "VIDIOCSCAPTURE", | |
208 | [_IOC_NR(VIDIOCSPLAYMODE)] = "VIDIOCSPLAYMODE", | |
209 | [_IOC_NR(VIDIOCSWRITEMODE)] = "VIDIOCSWRITEMODE", | |
210 | [_IOC_NR(VIDIOCGPLAYINFO)] = "VIDIOCGPLAYINFO", | |
211 | [_IOC_NR(VIDIOCSMICROCODE)] = "VIDIOCSMICROCODE", | |
212 | [_IOC_NR(VIDIOCGVBIFMT)] = "VIDIOCGVBIFMT", | |
213 | [_IOC_NR(VIDIOCSVBIFMT)] = "VIDIOCSVBIFMT" | |
214 | }; | |
215 | #define V4L1_IOCTLS ARRAY_SIZE(v4l1_ioctls) | |
216 | #endif | |
217 | ||
218 | static const char *v4l2_ioctls[] = { | |
219 | [_IOC_NR(VIDIOC_QUERYCAP)] = "VIDIOC_QUERYCAP", | |
220 | [_IOC_NR(VIDIOC_RESERVED)] = "VIDIOC_RESERVED", | |
221 | [_IOC_NR(VIDIOC_ENUM_FMT)] = "VIDIOC_ENUM_FMT", | |
222 | [_IOC_NR(VIDIOC_G_FMT)] = "VIDIOC_G_FMT", | |
223 | [_IOC_NR(VIDIOC_S_FMT)] = "VIDIOC_S_FMT", | |
224 | [_IOC_NR(VIDIOC_REQBUFS)] = "VIDIOC_REQBUFS", | |
225 | [_IOC_NR(VIDIOC_QUERYBUF)] = "VIDIOC_QUERYBUF", | |
226 | [_IOC_NR(VIDIOC_G_FBUF)] = "VIDIOC_G_FBUF", | |
227 | [_IOC_NR(VIDIOC_S_FBUF)] = "VIDIOC_S_FBUF", | |
228 | [_IOC_NR(VIDIOC_OVERLAY)] = "VIDIOC_OVERLAY", | |
229 | [_IOC_NR(VIDIOC_QBUF)] = "VIDIOC_QBUF", | |
230 | [_IOC_NR(VIDIOC_DQBUF)] = "VIDIOC_DQBUF", | |
231 | [_IOC_NR(VIDIOC_STREAMON)] = "VIDIOC_STREAMON", | |
232 | [_IOC_NR(VIDIOC_STREAMOFF)] = "VIDIOC_STREAMOFF", | |
233 | [_IOC_NR(VIDIOC_G_PARM)] = "VIDIOC_G_PARM", | |
234 | [_IOC_NR(VIDIOC_S_PARM)] = "VIDIOC_S_PARM", | |
235 | [_IOC_NR(VIDIOC_G_STD)] = "VIDIOC_G_STD", | |
236 | [_IOC_NR(VIDIOC_S_STD)] = "VIDIOC_S_STD", | |
237 | [_IOC_NR(VIDIOC_ENUMSTD)] = "VIDIOC_ENUMSTD", | |
238 | [_IOC_NR(VIDIOC_ENUMINPUT)] = "VIDIOC_ENUMINPUT", | |
239 | [_IOC_NR(VIDIOC_G_CTRL)] = "VIDIOC_G_CTRL", | |
240 | [_IOC_NR(VIDIOC_S_CTRL)] = "VIDIOC_S_CTRL", | |
241 | [_IOC_NR(VIDIOC_G_TUNER)] = "VIDIOC_G_TUNER", | |
242 | [_IOC_NR(VIDIOC_S_TUNER)] = "VIDIOC_S_TUNER", | |
243 | [_IOC_NR(VIDIOC_G_AUDIO)] = "VIDIOC_G_AUDIO", | |
244 | [_IOC_NR(VIDIOC_S_AUDIO)] = "VIDIOC_S_AUDIO", | |
245 | [_IOC_NR(VIDIOC_QUERYCTRL)] = "VIDIOC_QUERYCTRL", | |
246 | [_IOC_NR(VIDIOC_QUERYMENU)] = "VIDIOC_QUERYMENU", | |
247 | [_IOC_NR(VIDIOC_G_INPUT)] = "VIDIOC_G_INPUT", | |
248 | [_IOC_NR(VIDIOC_S_INPUT)] = "VIDIOC_S_INPUT", | |
249 | [_IOC_NR(VIDIOC_G_OUTPUT)] = "VIDIOC_G_OUTPUT", | |
250 | [_IOC_NR(VIDIOC_S_OUTPUT)] = "VIDIOC_S_OUTPUT", | |
251 | [_IOC_NR(VIDIOC_ENUMOUTPUT)] = "VIDIOC_ENUMOUTPUT", | |
252 | [_IOC_NR(VIDIOC_G_AUDOUT)] = "VIDIOC_G_AUDOUT", | |
253 | [_IOC_NR(VIDIOC_S_AUDOUT)] = "VIDIOC_S_AUDOUT", | |
254 | [_IOC_NR(VIDIOC_G_MODULATOR)] = "VIDIOC_G_MODULATOR", | |
255 | [_IOC_NR(VIDIOC_S_MODULATOR)] = "VIDIOC_S_MODULATOR", | |
256 | [_IOC_NR(VIDIOC_G_FREQUENCY)] = "VIDIOC_G_FREQUENCY", | |
257 | [_IOC_NR(VIDIOC_S_FREQUENCY)] = "VIDIOC_S_FREQUENCY", | |
258 | [_IOC_NR(VIDIOC_CROPCAP)] = "VIDIOC_CROPCAP", | |
259 | [_IOC_NR(VIDIOC_G_CROP)] = "VIDIOC_G_CROP", | |
260 | [_IOC_NR(VIDIOC_S_CROP)] = "VIDIOC_S_CROP", | |
261 | [_IOC_NR(VIDIOC_G_JPEGCOMP)] = "VIDIOC_G_JPEGCOMP", | |
262 | [_IOC_NR(VIDIOC_S_JPEGCOMP)] = "VIDIOC_S_JPEGCOMP", | |
263 | [_IOC_NR(VIDIOC_QUERYSTD)] = "VIDIOC_QUERYSTD", | |
264 | [_IOC_NR(VIDIOC_TRY_FMT)] = "VIDIOC_TRY_FMT", | |
265 | [_IOC_NR(VIDIOC_ENUMAUDIO)] = "VIDIOC_ENUMAUDIO", | |
266 | [_IOC_NR(VIDIOC_ENUMAUDOUT)] = "VIDIOC_ENUMAUDOUT", | |
267 | [_IOC_NR(VIDIOC_G_PRIORITY)] = "VIDIOC_G_PRIORITY", | |
268 | [_IOC_NR(VIDIOC_S_PRIORITY)] = "VIDIOC_S_PRIORITY", | |
269 | [_IOC_NR(VIDIOC_G_SLICED_VBI_CAP)] = "VIDIOC_G_SLICED_VBI_CAP", | |
270 | [_IOC_NR(VIDIOC_LOG_STATUS)] = "VIDIOC_LOG_STATUS", | |
271 | [_IOC_NR(VIDIOC_G_EXT_CTRLS)] = "VIDIOC_G_EXT_CTRLS", | |
272 | [_IOC_NR(VIDIOC_S_EXT_CTRLS)] = "VIDIOC_S_EXT_CTRLS", | |
273 | [_IOC_NR(VIDIOC_TRY_EXT_CTRLS)] = "VIDIOC_TRY_EXT_CTRLS", | |
274 | #if 1 | |
275 | [_IOC_NR(VIDIOC_ENUM_FRAMESIZES)] = "VIDIOC_ENUM_FRAMESIZES", | |
276 | [_IOC_NR(VIDIOC_ENUM_FRAMEINTERVALS)] = "VIDIOC_ENUM_FRAMEINTERVALS", | |
277 | [_IOC_NR(VIDIOC_G_ENC_INDEX)] = "VIDIOC_G_ENC_INDEX", | |
278 | [_IOC_NR(VIDIOC_ENCODER_CMD)] = "VIDIOC_ENCODER_CMD", | |
279 | [_IOC_NR(VIDIOC_TRY_ENCODER_CMD)] = "VIDIOC_TRY_ENCODER_CMD", | |
280 | ||
281 | [_IOC_NR(VIDIOC_DBG_S_REGISTER)] = "VIDIOC_DBG_S_REGISTER", | |
282 | [_IOC_NR(VIDIOC_DBG_G_REGISTER)] = "VIDIOC_DBG_G_REGISTER", | |
283 | ||
aecde8b5 | 284 | [_IOC_NR(VIDIOC_DBG_G_CHIP_IDENT)] = "VIDIOC_DBG_G_CHIP_IDENT", |
35ea11ff HV |
285 | [_IOC_NR(VIDIOC_S_HW_FREQ_SEEK)] = "VIDIOC_S_HW_FREQ_SEEK", |
286 | #endif | |
287 | }; | |
288 | #define V4L2_IOCTLS ARRAY_SIZE(v4l2_ioctls) | |
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 | #ifdef CONFIG_VIDEO_V4L1_COMPAT |
301 | case 'v': | |
302 | if (_IOC_NR(cmd) >= V4L1_IOCTLS) { | |
303 | type = "v4l1"; | |
304 | break; | |
305 | } | |
306 | printk("%s", v4l1_ioctls[_IOC_NR(cmd)]); | |
307 | return; | |
308 | #endif | |
309 | case 'V': | |
310 | if (_IOC_NR(cmd) >= V4L2_IOCTLS) { | |
311 | type = "v4l2"; | |
312 | break; | |
313 | } | |
314 | printk("%s", v4l2_ioctls[_IOC_NR(cmd)]); | |
315 | return; | |
316 | default: | |
317 | type = "unknown"; | |
318 | } | |
319 | ||
320 | switch (_IOC_DIR(cmd)) { | |
321 | case _IOC_NONE: dir = "--"; break; | |
322 | case _IOC_READ: dir = "r-"; break; | |
323 | case _IOC_WRITE: dir = "-w"; break; | |
324 | case _IOC_READ | _IOC_WRITE: dir = "rw"; break; | |
325 | default: dir = "*ERR*"; break; | |
326 | } | |
327 | printk("%s ioctl '%c', dir=%s, #%d (0x%08x)", | |
328 | type, _IOC_TYPE(cmd), dir, _IOC_NR(cmd), cmd); | |
329 | } | |
330 | EXPORT_SYMBOL(v4l_printk_ioctl); | |
331 | ||
332 | /* | |
333 | * helper function -- handles userspace copying for ioctl arguments | |
334 | */ | |
335 | ||
336 | #ifdef __OLD_VIDIOC_ | |
337 | static unsigned int | |
338 | video_fix_command(unsigned int cmd) | |
339 | { | |
340 | switch (cmd) { | |
341 | case VIDIOC_OVERLAY_OLD: | |
342 | cmd = VIDIOC_OVERLAY; | |
343 | break; | |
344 | case VIDIOC_S_PARM_OLD: | |
345 | cmd = VIDIOC_S_PARM; | |
346 | break; | |
347 | case VIDIOC_S_CTRL_OLD: | |
348 | cmd = VIDIOC_S_CTRL; | |
349 | break; | |
350 | case VIDIOC_G_AUDIO_OLD: | |
351 | cmd = VIDIOC_G_AUDIO; | |
352 | break; | |
353 | case VIDIOC_G_AUDOUT_OLD: | |
354 | cmd = VIDIOC_G_AUDOUT; | |
355 | break; | |
356 | case VIDIOC_CROPCAP_OLD: | |
357 | cmd = VIDIOC_CROPCAP; | |
358 | break; | |
359 | } | |
360 | return cmd; | |
361 | } | |
362 | #endif | |
363 | ||
364 | /* | |
365 | * Obsolete usercopy function - Should be removed soon | |
366 | */ | |
069b7479 | 367 | long |
f473bf76 HV |
368 | video_usercopy(struct file *file, unsigned int cmd, unsigned long arg, |
369 | v4l2_kioctl func) | |
35ea11ff HV |
370 | { |
371 | char sbuf[128]; | |
372 | void *mbuf = NULL; | |
373 | void *parg = NULL; | |
069b7479 | 374 | long err = -EINVAL; |
35ea11ff HV |
375 | int is_ext_ctrl; |
376 | size_t ctrls_size = 0; | |
377 | void __user *user_ptr = NULL; | |
378 | ||
379 | #ifdef __OLD_VIDIOC_ | |
380 | cmd = video_fix_command(cmd); | |
381 | #endif | |
382 | is_ext_ctrl = (cmd == VIDIOC_S_EXT_CTRLS || cmd == VIDIOC_G_EXT_CTRLS || | |
383 | cmd == VIDIOC_TRY_EXT_CTRLS); | |
384 | ||
385 | /* Copy arguments into temp kernel buffer */ | |
386 | switch (_IOC_DIR(cmd)) { | |
387 | case _IOC_NONE: | |
388 | parg = NULL; | |
389 | break; | |
390 | case _IOC_READ: | |
391 | case _IOC_WRITE: | |
392 | case (_IOC_WRITE | _IOC_READ): | |
393 | if (_IOC_SIZE(cmd) <= sizeof(sbuf)) { | |
394 | parg = sbuf; | |
395 | } else { | |
396 | /* too big to allocate from stack */ | |
397 | mbuf = kmalloc(_IOC_SIZE(cmd), GFP_KERNEL); | |
398 | if (NULL == mbuf) | |
399 | return -ENOMEM; | |
400 | parg = mbuf; | |
401 | } | |
402 | ||
403 | err = -EFAULT; | |
404 | if (_IOC_DIR(cmd) & _IOC_WRITE) | |
405 | if (copy_from_user(parg, (void __user *)arg, _IOC_SIZE(cmd))) | |
406 | goto out; | |
407 | break; | |
408 | } | |
409 | if (is_ext_ctrl) { | |
410 | struct v4l2_ext_controls *p = parg; | |
411 | ||
412 | /* In case of an error, tell the caller that it wasn't | |
413 | a specific control that caused it. */ | |
414 | p->error_idx = p->count; | |
415 | user_ptr = (void __user *)p->controls; | |
416 | if (p->count) { | |
417 | ctrls_size = sizeof(struct v4l2_ext_control) * p->count; | |
418 | /* Note: v4l2_ext_controls fits in sbuf[] so mbuf is still NULL. */ | |
419 | mbuf = kmalloc(ctrls_size, GFP_KERNEL); | |
420 | err = -ENOMEM; | |
421 | if (NULL == mbuf) | |
422 | goto out_ext_ctrl; | |
423 | err = -EFAULT; | |
424 | if (copy_from_user(mbuf, user_ptr, ctrls_size)) | |
425 | goto out_ext_ctrl; | |
426 | p->controls = mbuf; | |
427 | } | |
428 | } | |
429 | ||
430 | /* call driver */ | |
f473bf76 | 431 | err = func(file, cmd, parg); |
35ea11ff HV |
432 | if (err == -ENOIOCTLCMD) |
433 | err = -EINVAL; | |
434 | if (is_ext_ctrl) { | |
435 | struct v4l2_ext_controls *p = parg; | |
436 | ||
437 | p->controls = (void *)user_ptr; | |
438 | if (p->count && err == 0 && copy_to_user(user_ptr, mbuf, ctrls_size)) | |
439 | err = -EFAULT; | |
440 | goto out_ext_ctrl; | |
441 | } | |
442 | if (err < 0) | |
443 | goto out; | |
444 | ||
445 | out_ext_ctrl: | |
446 | /* Copy results into user buffer */ | |
447 | switch (_IOC_DIR(cmd)) { | |
448 | case _IOC_READ: | |
449 | case (_IOC_WRITE | _IOC_READ): | |
450 | if (copy_to_user((void __user *)arg, parg, _IOC_SIZE(cmd))) | |
451 | err = -EFAULT; | |
452 | break; | |
453 | } | |
454 | ||
455 | out: | |
456 | kfree(mbuf); | |
457 | return err; | |
458 | } | |
459 | EXPORT_SYMBOL(video_usercopy); | |
460 | ||
461 | static void dbgbuf(unsigned int cmd, struct video_device *vfd, | |
462 | struct v4l2_buffer *p) | |
463 | { | |
464 | struct v4l2_timecode *tc = &p->timecode; | |
465 | ||
466 | dbgarg(cmd, "%02ld:%02d:%02d.%08ld index=%d, type=%s, " | |
467 | "bytesused=%d, flags=0x%08d, " | |
468 | "field=%0d, sequence=%d, memory=%s, offset/userptr=0x%08lx, length=%d\n", | |
469 | p->timestamp.tv_sec / 3600, | |
470 | (int)(p->timestamp.tv_sec / 60) % 60, | |
471 | (int)(p->timestamp.tv_sec % 60), | |
b045979d | 472 | (long)p->timestamp.tv_usec, |
35ea11ff HV |
473 | p->index, |
474 | prt_names(p->type, v4l2_type_names), | |
475 | p->bytesused, p->flags, | |
476 | p->field, p->sequence, | |
477 | prt_names(p->memory, v4l2_memory_names), | |
478 | p->m.userptr, p->length); | |
479 | dbgarg2("timecode=%02d:%02d:%02d type=%d, " | |
480 | "flags=0x%08d, frames=%d, userbits=0x%08x\n", | |
481 | tc->hours, tc->minutes, tc->seconds, | |
482 | tc->type, tc->flags, tc->frames, *(__u32 *)tc->userbits); | |
483 | } | |
484 | ||
485 | static inline void dbgrect(struct video_device *vfd, char *s, | |
486 | struct v4l2_rect *r) | |
487 | { | |
488 | dbgarg2("%sRect start at %dx%d, size=%dx%d\n", s, r->left, r->top, | |
489 | r->width, r->height); | |
490 | }; | |
491 | ||
492 | static inline void v4l_print_pix_fmt(struct video_device *vfd, | |
493 | struct v4l2_pix_format *fmt) | |
494 | { | |
495 | dbgarg2("width=%d, height=%d, format=%c%c%c%c, field=%s, " | |
496 | "bytesperline=%d sizeimage=%d, colorspace=%d\n", | |
497 | fmt->width, fmt->height, | |
498 | (fmt->pixelformat & 0xff), | |
499 | (fmt->pixelformat >> 8) & 0xff, | |
500 | (fmt->pixelformat >> 16) & 0xff, | |
501 | (fmt->pixelformat >> 24) & 0xff, | |
502 | prt_names(fmt->field, v4l2_field_names), | |
503 | fmt->bytesperline, fmt->sizeimage, fmt->colorspace); | |
504 | }; | |
505 | ||
506 | static inline void v4l_print_ext_ctrls(unsigned int cmd, | |
507 | struct video_device *vfd, struct v4l2_ext_controls *c, int show_vals) | |
508 | { | |
509 | __u32 i; | |
510 | ||
511 | if (!(vfd->debug & V4L2_DEBUG_IOCTL_ARG)) | |
512 | return; | |
513 | dbgarg(cmd, ""); | |
514 | printk(KERN_CONT "class=0x%x", c->ctrl_class); | |
515 | for (i = 0; i < c->count; i++) { | |
516 | if (show_vals) | |
517 | printk(KERN_CONT " id/val=0x%x/0x%x", | |
518 | c->controls[i].id, c->controls[i].value); | |
519 | else | |
520 | printk(KERN_CONT " id=0x%x", c->controls[i].id); | |
521 | } | |
522 | printk(KERN_CONT "\n"); | |
523 | }; | |
524 | ||
525 | static inline int check_ext_ctrls(struct v4l2_ext_controls *c, int allow_priv) | |
526 | { | |
527 | __u32 i; | |
528 | ||
529 | /* zero the reserved fields */ | |
530 | c->reserved[0] = c->reserved[1] = 0; | |
531 | for (i = 0; i < c->count; i++) { | |
532 | c->controls[i].reserved2[0] = 0; | |
533 | c->controls[i].reserved2[1] = 0; | |
534 | } | |
535 | /* V4L2_CID_PRIVATE_BASE cannot be used as control class | |
536 | when using extended controls. | |
537 | Only when passed in through VIDIOC_G_CTRL and VIDIOC_S_CTRL | |
538 | is it allowed for backwards compatibility. | |
539 | */ | |
540 | if (!allow_priv && c->ctrl_class == V4L2_CID_PRIVATE_BASE) | |
541 | return 0; | |
542 | /* Check that all controls are from the same control class. */ | |
543 | for (i = 0; i < c->count; i++) { | |
544 | if (V4L2_CTRL_ID2CLASS(c->controls[i].id) != c->ctrl_class) { | |
545 | c->error_idx = i; | |
546 | return 0; | |
547 | } | |
548 | } | |
549 | return 1; | |
550 | } | |
551 | ||
a399810c | 552 | static int check_fmt(const struct v4l2_ioctl_ops *ops, enum v4l2_buf_type type) |
35ea11ff | 553 | { |
a399810c HV |
554 | if (ops == NULL) |
555 | return -EINVAL; | |
556 | ||
35ea11ff HV |
557 | switch (type) { |
558 | case V4L2_BUF_TYPE_VIDEO_CAPTURE: | |
1175d613 | 559 | if (ops->vidioc_g_fmt_vid_cap) |
35ea11ff HV |
560 | return 0; |
561 | break; | |
562 | case V4L2_BUF_TYPE_VIDEO_OVERLAY: | |
1175d613 | 563 | if (ops->vidioc_g_fmt_vid_overlay) |
35ea11ff HV |
564 | return 0; |
565 | break; | |
566 | case V4L2_BUF_TYPE_VIDEO_OUTPUT: | |
1175d613 | 567 | if (ops->vidioc_g_fmt_vid_out) |
35ea11ff HV |
568 | return 0; |
569 | break; | |
570 | case V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY: | |
1175d613 | 571 | if (ops->vidioc_g_fmt_vid_out_overlay) |
35ea11ff HV |
572 | return 0; |
573 | break; | |
574 | case V4L2_BUF_TYPE_VBI_CAPTURE: | |
1175d613 | 575 | if (ops->vidioc_g_fmt_vbi_cap) |
35ea11ff HV |
576 | return 0; |
577 | break; | |
578 | case V4L2_BUF_TYPE_VBI_OUTPUT: | |
1175d613 | 579 | if (ops->vidioc_g_fmt_vbi_out) |
35ea11ff HV |
580 | return 0; |
581 | break; | |
582 | case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE: | |
1175d613 | 583 | if (ops->vidioc_g_fmt_sliced_vbi_cap) |
35ea11ff HV |
584 | return 0; |
585 | break; | |
586 | case V4L2_BUF_TYPE_SLICED_VBI_OUTPUT: | |
1175d613 | 587 | if (ops->vidioc_g_fmt_sliced_vbi_out) |
35ea11ff HV |
588 | return 0; |
589 | break; | |
590 | case V4L2_BUF_TYPE_PRIVATE: | |
1175d613 | 591 | if (ops->vidioc_g_fmt_type_private) |
35ea11ff HV |
592 | return 0; |
593 | break; | |
594 | } | |
595 | return -EINVAL; | |
596 | } | |
597 | ||
069b7479 | 598 | static long __video_do_ioctl(struct file *file, |
35ea11ff HV |
599 | unsigned int cmd, void *arg) |
600 | { | |
601 | struct video_device *vfd = video_devdata(file); | |
a399810c | 602 | const struct v4l2_ioctl_ops *ops = vfd->ioctl_ops; |
d5fbf32f | 603 | void *fh = file->private_data; |
069b7479 | 604 | long ret = -EINVAL; |
35ea11ff HV |
605 | |
606 | if ((vfd->debug & V4L2_DEBUG_IOCTL) && | |
607 | !(vfd->debug & V4L2_DEBUG_IOCTL_ARG)) { | |
608 | v4l_print_ioctl(vfd->name, cmd); | |
609 | printk(KERN_CONT "\n"); | |
610 | } | |
611 | ||
a399810c HV |
612 | if (ops == NULL) { |
613 | printk(KERN_WARNING "videodev: \"%s\" has no ioctl_ops.\n", | |
614 | vfd->name); | |
615 | return -EINVAL; | |
616 | } | |
617 | ||
35ea11ff HV |
618 | #ifdef CONFIG_VIDEO_V4L1_COMPAT |
619 | /*********************************************************** | |
620 | Handles calls to the obsoleted V4L1 API | |
621 | Due to the nature of VIDIOCGMBUF, each driver that supports | |
622 | V4L1 should implement its own handler for this ioctl. | |
623 | ***********************************************************/ | |
624 | ||
625 | /* --- streaming capture ------------------------------------- */ | |
626 | if (cmd == VIDIOCGMBUF) { | |
627 | struct video_mbuf *p = arg; | |
628 | ||
a399810c | 629 | if (!ops->vidiocgmbuf) |
35ea11ff | 630 | return ret; |
a399810c | 631 | ret = ops->vidiocgmbuf(file, fh, p); |
35ea11ff HV |
632 | if (!ret) |
633 | dbgarg(cmd, "size=%d, frames=%d, offsets=0x%08lx\n", | |
634 | p->size, p->frames, | |
635 | (unsigned long)p->offsets); | |
636 | return ret; | |
637 | } | |
638 | ||
639 | /******************************************************** | |
640 | All other V4L1 calls are handled by v4l1_compat module. | |
641 | Those calls will be translated into V4L2 calls, and | |
642 | __video_do_ioctl will be called again, with one or more | |
643 | V4L2 ioctls. | |
644 | ********************************************************/ | |
888fe747 | 645 | if (_IOC_TYPE(cmd) == 'v' && _IOC_NR(cmd) < BASE_VIDIOCPRIVATE) |
b1f88407 | 646 | return v4l_compat_translate_ioctl(file, cmd, arg, |
35ea11ff HV |
647 | __video_do_ioctl); |
648 | #endif | |
649 | ||
650 | switch (cmd) { | |
651 | /* --- capabilities ------------------------------------------ */ | |
652 | case VIDIOC_QUERYCAP: | |
653 | { | |
654 | struct v4l2_capability *cap = (struct v4l2_capability *)arg; | |
35ea11ff | 655 | |
a399810c | 656 | if (!ops->vidioc_querycap) |
35ea11ff HV |
657 | break; |
658 | ||
a399810c | 659 | ret = ops->vidioc_querycap(file, fh, cap); |
35ea11ff HV |
660 | if (!ret) |
661 | dbgarg(cmd, "driver=%s, card=%s, bus=%s, " | |
662 | "version=0x%08x, " | |
663 | "capabilities=0x%08x\n", | |
664 | cap->driver, cap->card, cap->bus_info, | |
665 | cap->version, | |
666 | cap->capabilities); | |
667 | break; | |
668 | } | |
669 | ||
670 | /* --- priority ------------------------------------------ */ | |
671 | case VIDIOC_G_PRIORITY: | |
672 | { | |
673 | enum v4l2_priority *p = arg; | |
674 | ||
a399810c | 675 | if (!ops->vidioc_g_priority) |
35ea11ff | 676 | break; |
a399810c | 677 | ret = ops->vidioc_g_priority(file, fh, p); |
35ea11ff HV |
678 | if (!ret) |
679 | dbgarg(cmd, "priority is %d\n", *p); | |
680 | break; | |
681 | } | |
682 | case VIDIOC_S_PRIORITY: | |
683 | { | |
684 | enum v4l2_priority *p = arg; | |
685 | ||
a399810c | 686 | if (!ops->vidioc_s_priority) |
35ea11ff HV |
687 | break; |
688 | dbgarg(cmd, "setting priority to %d\n", *p); | |
a399810c | 689 | ret = ops->vidioc_s_priority(file, fh, *p); |
35ea11ff HV |
690 | break; |
691 | } | |
692 | ||
693 | /* --- capture ioctls ---------------------------------------- */ | |
694 | case VIDIOC_ENUM_FMT: | |
695 | { | |
696 | struct v4l2_fmtdesc *f = arg; | |
35ea11ff | 697 | |
19c96e4b | 698 | switch (f->type) { |
35ea11ff | 699 | case V4L2_BUF_TYPE_VIDEO_CAPTURE: |
a399810c HV |
700 | if (ops->vidioc_enum_fmt_vid_cap) |
701 | ret = ops->vidioc_enum_fmt_vid_cap(file, fh, f); | |
35ea11ff HV |
702 | break; |
703 | case V4L2_BUF_TYPE_VIDEO_OVERLAY: | |
a399810c HV |
704 | if (ops->vidioc_enum_fmt_vid_overlay) |
705 | ret = ops->vidioc_enum_fmt_vid_overlay(file, | |
35ea11ff HV |
706 | fh, f); |
707 | break; | |
35ea11ff | 708 | case V4L2_BUF_TYPE_VIDEO_OUTPUT: |
a399810c HV |
709 | if (ops->vidioc_enum_fmt_vid_out) |
710 | ret = ops->vidioc_enum_fmt_vid_out(file, fh, f); | |
35ea11ff HV |
711 | break; |
712 | case V4L2_BUF_TYPE_PRIVATE: | |
a399810c HV |
713 | if (ops->vidioc_enum_fmt_type_private) |
714 | ret = ops->vidioc_enum_fmt_type_private(file, | |
35ea11ff HV |
715 | fh, f); |
716 | break; | |
717 | default: | |
718 | break; | |
719 | } | |
720 | if (!ret) | |
721 | dbgarg(cmd, "index=%d, type=%d, flags=%d, " | |
722 | "pixelformat=%c%c%c%c, description='%s'\n", | |
723 | f->index, f->type, f->flags, | |
724 | (f->pixelformat & 0xff), | |
725 | (f->pixelformat >> 8) & 0xff, | |
726 | (f->pixelformat >> 16) & 0xff, | |
727 | (f->pixelformat >> 24) & 0xff, | |
728 | f->description); | |
729 | break; | |
730 | } | |
731 | case VIDIOC_G_FMT: | |
732 | { | |
733 | struct v4l2_format *f = (struct v4l2_format *)arg; | |
734 | ||
35ea11ff HV |
735 | /* FIXME: Should be one dump per type */ |
736 | dbgarg(cmd, "type=%s\n", prt_names(f->type, v4l2_type_names)); | |
737 | ||
738 | switch (f->type) { | |
739 | case V4L2_BUF_TYPE_VIDEO_CAPTURE: | |
a399810c HV |
740 | if (ops->vidioc_g_fmt_vid_cap) |
741 | ret = ops->vidioc_g_fmt_vid_cap(file, fh, f); | |
35ea11ff HV |
742 | if (!ret) |
743 | v4l_print_pix_fmt(vfd, &f->fmt.pix); | |
744 | break; | |
745 | case V4L2_BUF_TYPE_VIDEO_OVERLAY: | |
a399810c HV |
746 | if (ops->vidioc_g_fmt_vid_overlay) |
747 | ret = ops->vidioc_g_fmt_vid_overlay(file, | |
35ea11ff HV |
748 | fh, f); |
749 | break; | |
750 | case V4L2_BUF_TYPE_VIDEO_OUTPUT: | |
a399810c HV |
751 | if (ops->vidioc_g_fmt_vid_out) |
752 | ret = ops->vidioc_g_fmt_vid_out(file, fh, f); | |
35ea11ff HV |
753 | if (!ret) |
754 | v4l_print_pix_fmt(vfd, &f->fmt.pix); | |
755 | break; | |
756 | case V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY: | |
a399810c HV |
757 | if (ops->vidioc_g_fmt_vid_out_overlay) |
758 | ret = ops->vidioc_g_fmt_vid_out_overlay(file, | |
35ea11ff HV |
759 | fh, f); |
760 | break; | |
761 | case V4L2_BUF_TYPE_VBI_CAPTURE: | |
a399810c HV |
762 | if (ops->vidioc_g_fmt_vbi_cap) |
763 | ret = ops->vidioc_g_fmt_vbi_cap(file, fh, f); | |
35ea11ff HV |
764 | break; |
765 | case V4L2_BUF_TYPE_VBI_OUTPUT: | |
a399810c HV |
766 | if (ops->vidioc_g_fmt_vbi_out) |
767 | ret = ops->vidioc_g_fmt_vbi_out(file, fh, f); | |
35ea11ff HV |
768 | break; |
769 | case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE: | |
a399810c HV |
770 | if (ops->vidioc_g_fmt_sliced_vbi_cap) |
771 | ret = ops->vidioc_g_fmt_sliced_vbi_cap(file, | |
35ea11ff HV |
772 | fh, f); |
773 | break; | |
774 | case V4L2_BUF_TYPE_SLICED_VBI_OUTPUT: | |
a399810c HV |
775 | if (ops->vidioc_g_fmt_sliced_vbi_out) |
776 | ret = ops->vidioc_g_fmt_sliced_vbi_out(file, | |
35ea11ff HV |
777 | fh, f); |
778 | break; | |
779 | case V4L2_BUF_TYPE_PRIVATE: | |
a399810c HV |
780 | if (ops->vidioc_g_fmt_type_private) |
781 | ret = ops->vidioc_g_fmt_type_private(file, | |
35ea11ff HV |
782 | fh, f); |
783 | break; | |
784 | } | |
785 | ||
786 | break; | |
787 | } | |
788 | case VIDIOC_S_FMT: | |
789 | { | |
790 | struct v4l2_format *f = (struct v4l2_format *)arg; | |
791 | ||
792 | /* FIXME: Should be one dump per type */ | |
793 | dbgarg(cmd, "type=%s\n", prt_names(f->type, v4l2_type_names)); | |
794 | ||
795 | switch (f->type) { | |
796 | case V4L2_BUF_TYPE_VIDEO_CAPTURE: | |
7ecc0cf9 | 797 | CLEAR_AFTER_FIELD(f, fmt.pix); |
35ea11ff | 798 | v4l_print_pix_fmt(vfd, &f->fmt.pix); |
a399810c HV |
799 | if (ops->vidioc_s_fmt_vid_cap) |
800 | ret = ops->vidioc_s_fmt_vid_cap(file, fh, f); | |
35ea11ff HV |
801 | break; |
802 | case V4L2_BUF_TYPE_VIDEO_OVERLAY: | |
7ecc0cf9 | 803 | CLEAR_AFTER_FIELD(f, fmt.win); |
a399810c HV |
804 | if (ops->vidioc_s_fmt_vid_overlay) |
805 | ret = ops->vidioc_s_fmt_vid_overlay(file, | |
35ea11ff HV |
806 | fh, f); |
807 | break; | |
808 | case V4L2_BUF_TYPE_VIDEO_OUTPUT: | |
7ecc0cf9 | 809 | CLEAR_AFTER_FIELD(f, fmt.pix); |
35ea11ff | 810 | v4l_print_pix_fmt(vfd, &f->fmt.pix); |
a399810c HV |
811 | if (ops->vidioc_s_fmt_vid_out) |
812 | ret = ops->vidioc_s_fmt_vid_out(file, fh, f); | |
35ea11ff HV |
813 | break; |
814 | case V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY: | |
7ecc0cf9 | 815 | CLEAR_AFTER_FIELD(f, fmt.win); |
a399810c HV |
816 | if (ops->vidioc_s_fmt_vid_out_overlay) |
817 | ret = ops->vidioc_s_fmt_vid_out_overlay(file, | |
35ea11ff HV |
818 | fh, f); |
819 | break; | |
820 | case V4L2_BUF_TYPE_VBI_CAPTURE: | |
7ecc0cf9 | 821 | CLEAR_AFTER_FIELD(f, fmt.vbi); |
a399810c HV |
822 | if (ops->vidioc_s_fmt_vbi_cap) |
823 | ret = ops->vidioc_s_fmt_vbi_cap(file, fh, f); | |
35ea11ff HV |
824 | break; |
825 | case V4L2_BUF_TYPE_VBI_OUTPUT: | |
7ecc0cf9 | 826 | CLEAR_AFTER_FIELD(f, fmt.vbi); |
a399810c HV |
827 | if (ops->vidioc_s_fmt_vbi_out) |
828 | ret = ops->vidioc_s_fmt_vbi_out(file, fh, f); | |
35ea11ff HV |
829 | break; |
830 | case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE: | |
7ecc0cf9 | 831 | CLEAR_AFTER_FIELD(f, fmt.sliced); |
a399810c HV |
832 | if (ops->vidioc_s_fmt_sliced_vbi_cap) |
833 | ret = ops->vidioc_s_fmt_sliced_vbi_cap(file, | |
35ea11ff HV |
834 | fh, f); |
835 | break; | |
836 | case V4L2_BUF_TYPE_SLICED_VBI_OUTPUT: | |
7ecc0cf9 | 837 | CLEAR_AFTER_FIELD(f, fmt.sliced); |
a399810c HV |
838 | if (ops->vidioc_s_fmt_sliced_vbi_out) |
839 | ret = ops->vidioc_s_fmt_sliced_vbi_out(file, | |
35ea11ff HV |
840 | fh, f); |
841 | break; | |
842 | case V4L2_BUF_TYPE_PRIVATE: | |
7ecc0cf9 | 843 | /* CLEAR_AFTER_FIELD(f, fmt.raw_data); <- does nothing */ |
a399810c HV |
844 | if (ops->vidioc_s_fmt_type_private) |
845 | ret = ops->vidioc_s_fmt_type_private(file, | |
35ea11ff HV |
846 | fh, f); |
847 | break; | |
848 | } | |
849 | break; | |
850 | } | |
851 | case VIDIOC_TRY_FMT: | |
852 | { | |
853 | struct v4l2_format *f = (struct v4l2_format *)arg; | |
854 | ||
855 | /* FIXME: Should be one dump per type */ | |
856 | dbgarg(cmd, "type=%s\n", prt_names(f->type, | |
857 | v4l2_type_names)); | |
858 | switch (f->type) { | |
859 | case V4L2_BUF_TYPE_VIDEO_CAPTURE: | |
7ecc0cf9 | 860 | CLEAR_AFTER_FIELD(f, fmt.pix); |
a399810c HV |
861 | if (ops->vidioc_try_fmt_vid_cap) |
862 | ret = ops->vidioc_try_fmt_vid_cap(file, fh, f); | |
35ea11ff HV |
863 | if (!ret) |
864 | v4l_print_pix_fmt(vfd, &f->fmt.pix); | |
865 | break; | |
866 | case V4L2_BUF_TYPE_VIDEO_OVERLAY: | |
7ecc0cf9 | 867 | CLEAR_AFTER_FIELD(f, fmt.win); |
a399810c HV |
868 | if (ops->vidioc_try_fmt_vid_overlay) |
869 | ret = ops->vidioc_try_fmt_vid_overlay(file, | |
35ea11ff HV |
870 | fh, f); |
871 | break; | |
872 | case V4L2_BUF_TYPE_VIDEO_OUTPUT: | |
7ecc0cf9 | 873 | CLEAR_AFTER_FIELD(f, fmt.pix); |
a399810c HV |
874 | if (ops->vidioc_try_fmt_vid_out) |
875 | ret = ops->vidioc_try_fmt_vid_out(file, fh, f); | |
35ea11ff HV |
876 | if (!ret) |
877 | v4l_print_pix_fmt(vfd, &f->fmt.pix); | |
878 | break; | |
879 | case V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY: | |
7ecc0cf9 | 880 | CLEAR_AFTER_FIELD(f, fmt.win); |
a399810c HV |
881 | if (ops->vidioc_try_fmt_vid_out_overlay) |
882 | ret = ops->vidioc_try_fmt_vid_out_overlay(file, | |
35ea11ff HV |
883 | fh, f); |
884 | break; | |
885 | case V4L2_BUF_TYPE_VBI_CAPTURE: | |
7ecc0cf9 | 886 | CLEAR_AFTER_FIELD(f, fmt.vbi); |
a399810c HV |
887 | if (ops->vidioc_try_fmt_vbi_cap) |
888 | ret = ops->vidioc_try_fmt_vbi_cap(file, fh, f); | |
35ea11ff HV |
889 | break; |
890 | case V4L2_BUF_TYPE_VBI_OUTPUT: | |
7ecc0cf9 | 891 | CLEAR_AFTER_FIELD(f, fmt.vbi); |
a399810c HV |
892 | if (ops->vidioc_try_fmt_vbi_out) |
893 | ret = ops->vidioc_try_fmt_vbi_out(file, fh, f); | |
35ea11ff HV |
894 | break; |
895 | case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE: | |
7ecc0cf9 | 896 | CLEAR_AFTER_FIELD(f, fmt.sliced); |
a399810c HV |
897 | if (ops->vidioc_try_fmt_sliced_vbi_cap) |
898 | ret = ops->vidioc_try_fmt_sliced_vbi_cap(file, | |
35ea11ff HV |
899 | fh, f); |
900 | break; | |
901 | case V4L2_BUF_TYPE_SLICED_VBI_OUTPUT: | |
7ecc0cf9 | 902 | CLEAR_AFTER_FIELD(f, fmt.sliced); |
a399810c HV |
903 | if (ops->vidioc_try_fmt_sliced_vbi_out) |
904 | ret = ops->vidioc_try_fmt_sliced_vbi_out(file, | |
35ea11ff HV |
905 | fh, f); |
906 | break; | |
907 | case V4L2_BUF_TYPE_PRIVATE: | |
7ecc0cf9 | 908 | /* CLEAR_AFTER_FIELD(f, fmt.raw_data); <- does nothing */ |
a399810c HV |
909 | if (ops->vidioc_try_fmt_type_private) |
910 | ret = ops->vidioc_try_fmt_type_private(file, | |
35ea11ff HV |
911 | fh, f); |
912 | break; | |
913 | } | |
914 | ||
915 | break; | |
916 | } | |
917 | /* FIXME: Those buf reqs could be handled here, | |
918 | with some changes on videobuf to allow its header to be included at | |
919 | videodev2.h or being merged at videodev2. | |
920 | */ | |
921 | case VIDIOC_REQBUFS: | |
922 | { | |
923 | struct v4l2_requestbuffers *p = arg; | |
924 | ||
a399810c | 925 | if (!ops->vidioc_reqbufs) |
35ea11ff | 926 | break; |
a399810c | 927 | ret = check_fmt(ops, p->type); |
35ea11ff HV |
928 | if (ret) |
929 | break; | |
930 | ||
7ecc0cf9 TP |
931 | if (p->type < V4L2_BUF_TYPE_PRIVATE) |
932 | CLEAR_AFTER_FIELD(p, memory); | |
933 | ||
a399810c | 934 | ret = ops->vidioc_reqbufs(file, fh, p); |
35ea11ff HV |
935 | dbgarg(cmd, "count=%d, type=%s, memory=%s\n", |
936 | p->count, | |
937 | prt_names(p->type, v4l2_type_names), | |
938 | prt_names(p->memory, v4l2_memory_names)); | |
939 | break; | |
940 | } | |
941 | case VIDIOC_QUERYBUF: | |
942 | { | |
943 | struct v4l2_buffer *p = arg; | |
944 | ||
a399810c | 945 | if (!ops->vidioc_querybuf) |
35ea11ff | 946 | break; |
a399810c | 947 | ret = check_fmt(ops, p->type); |
35ea11ff HV |
948 | if (ret) |
949 | break; | |
950 | ||
a399810c | 951 | ret = ops->vidioc_querybuf(file, fh, p); |
35ea11ff HV |
952 | if (!ret) |
953 | dbgbuf(cmd, vfd, p); | |
954 | break; | |
955 | } | |
956 | case VIDIOC_QBUF: | |
957 | { | |
958 | struct v4l2_buffer *p = arg; | |
959 | ||
a399810c | 960 | if (!ops->vidioc_qbuf) |
35ea11ff | 961 | break; |
a399810c | 962 | ret = check_fmt(ops, p->type); |
35ea11ff HV |
963 | if (ret) |
964 | break; | |
965 | ||
a399810c | 966 | ret = ops->vidioc_qbuf(file, fh, p); |
35ea11ff HV |
967 | if (!ret) |
968 | dbgbuf(cmd, vfd, p); | |
969 | break; | |
970 | } | |
971 | case VIDIOC_DQBUF: | |
972 | { | |
973 | struct v4l2_buffer *p = arg; | |
974 | ||
a399810c | 975 | if (!ops->vidioc_dqbuf) |
35ea11ff | 976 | break; |
a399810c | 977 | ret = check_fmt(ops, p->type); |
35ea11ff HV |
978 | if (ret) |
979 | break; | |
980 | ||
a399810c | 981 | ret = ops->vidioc_dqbuf(file, fh, p); |
35ea11ff HV |
982 | if (!ret) |
983 | dbgbuf(cmd, vfd, p); | |
984 | break; | |
985 | } | |
986 | case VIDIOC_OVERLAY: | |
987 | { | |
988 | int *i = arg; | |
989 | ||
a399810c | 990 | if (!ops->vidioc_overlay) |
35ea11ff HV |
991 | break; |
992 | dbgarg(cmd, "value=%d\n", *i); | |
a399810c | 993 | ret = ops->vidioc_overlay(file, fh, *i); |
35ea11ff HV |
994 | break; |
995 | } | |
996 | case VIDIOC_G_FBUF: | |
997 | { | |
998 | struct v4l2_framebuffer *p = arg; | |
999 | ||
a399810c | 1000 | if (!ops->vidioc_g_fbuf) |
35ea11ff | 1001 | break; |
a399810c | 1002 | ret = ops->vidioc_g_fbuf(file, fh, arg); |
35ea11ff HV |
1003 | if (!ret) { |
1004 | dbgarg(cmd, "capability=0x%x, flags=%d, base=0x%08lx\n", | |
1005 | p->capability, p->flags, | |
1006 | (unsigned long)p->base); | |
1007 | v4l_print_pix_fmt(vfd, &p->fmt); | |
1008 | } | |
1009 | break; | |
1010 | } | |
1011 | case VIDIOC_S_FBUF: | |
1012 | { | |
1013 | struct v4l2_framebuffer *p = arg; | |
1014 | ||
a399810c | 1015 | if (!ops->vidioc_s_fbuf) |
35ea11ff HV |
1016 | break; |
1017 | dbgarg(cmd, "capability=0x%x, flags=%d, base=0x%08lx\n", | |
1018 | p->capability, p->flags, (unsigned long)p->base); | |
1019 | v4l_print_pix_fmt(vfd, &p->fmt); | |
a399810c | 1020 | ret = ops->vidioc_s_fbuf(file, fh, arg); |
35ea11ff HV |
1021 | break; |
1022 | } | |
1023 | case VIDIOC_STREAMON: | |
1024 | { | |
1025 | enum v4l2_buf_type i = *(int *)arg; | |
1026 | ||
a399810c | 1027 | if (!ops->vidioc_streamon) |
35ea11ff HV |
1028 | break; |
1029 | dbgarg(cmd, "type=%s\n", prt_names(i, v4l2_type_names)); | |
a399810c | 1030 | ret = ops->vidioc_streamon(file, fh, i); |
35ea11ff HV |
1031 | break; |
1032 | } | |
1033 | case VIDIOC_STREAMOFF: | |
1034 | { | |
1035 | enum v4l2_buf_type i = *(int *)arg; | |
1036 | ||
a399810c | 1037 | if (!ops->vidioc_streamoff) |
35ea11ff HV |
1038 | break; |
1039 | dbgarg(cmd, "type=%s\n", prt_names(i, v4l2_type_names)); | |
a399810c | 1040 | ret = ops->vidioc_streamoff(file, fh, i); |
35ea11ff HV |
1041 | break; |
1042 | } | |
1043 | /* ---------- tv norms ---------- */ | |
1044 | case VIDIOC_ENUMSTD: | |
1045 | { | |
1046 | struct v4l2_standard *p = arg; | |
1047 | v4l2_std_id id = vfd->tvnorms, curr_id = 0; | |
1048 | unsigned int index = p->index, i, j = 0; | |
1049 | const char *descr = ""; | |
1050 | ||
1051 | /* Return norm array in a canonical way */ | |
1052 | for (i = 0; i <= index && id; i++) { | |
1053 | /* last std value in the standards array is 0, so this | |
1054 | while always ends there since (id & 0) == 0. */ | |
1055 | while ((id & standards[j].std) != standards[j].std) | |
1056 | j++; | |
1057 | curr_id = standards[j].std; | |
1058 | descr = standards[j].descr; | |
1059 | j++; | |
1060 | if (curr_id == 0) | |
1061 | break; | |
1062 | if (curr_id != V4L2_STD_PAL && | |
1063 | curr_id != V4L2_STD_SECAM && | |
1064 | curr_id != V4L2_STD_NTSC) | |
1065 | id &= ~curr_id; | |
1066 | } | |
1067 | if (i <= index) | |
1068 | return -EINVAL; | |
1069 | ||
1070 | v4l2_video_std_construct(p, curr_id, descr); | |
35ea11ff HV |
1071 | |
1072 | dbgarg(cmd, "index=%d, id=0x%Lx, name=%s, fps=%d/%d, " | |
1073 | "framelines=%d\n", p->index, | |
1074 | (unsigned long long)p->id, p->name, | |
1075 | p->frameperiod.numerator, | |
1076 | p->frameperiod.denominator, | |
1077 | p->framelines); | |
1078 | ||
1079 | ret = 0; | |
1080 | break; | |
1081 | } | |
1082 | case VIDIOC_G_STD: | |
1083 | { | |
1084 | v4l2_std_id *id = arg; | |
1085 | ||
1086 | ret = 0; | |
1087 | /* Calls the specific handler */ | |
a399810c HV |
1088 | if (ops->vidioc_g_std) |
1089 | ret = ops->vidioc_g_std(file, fh, id); | |
9bedc7f7 | 1090 | else if (vfd->current_norm) |
35ea11ff | 1091 | *id = vfd->current_norm; |
9bedc7f7 HV |
1092 | else |
1093 | ret = -EINVAL; | |
35ea11ff HV |
1094 | |
1095 | if (!ret) | |
1096 | dbgarg(cmd, "std=0x%08Lx\n", (long long unsigned)*id); | |
1097 | break; | |
1098 | } | |
1099 | case VIDIOC_S_STD: | |
1100 | { | |
1101 | v4l2_std_id *id = arg, norm; | |
1102 | ||
1103 | dbgarg(cmd, "std=%08Lx\n", (long long unsigned)*id); | |
1104 | ||
1105 | norm = (*id) & vfd->tvnorms; | |
1106 | if (vfd->tvnorms && !norm) /* Check if std is supported */ | |
1107 | break; | |
1108 | ||
1109 | /* Calls the specific handler */ | |
a399810c HV |
1110 | if (ops->vidioc_s_std) |
1111 | ret = ops->vidioc_s_std(file, fh, &norm); | |
35ea11ff HV |
1112 | else |
1113 | ret = -EINVAL; | |
1114 | ||
1115 | /* Updates standard information */ | |
1116 | if (ret >= 0) | |
1117 | vfd->current_norm = norm; | |
1118 | break; | |
1119 | } | |
1120 | case VIDIOC_QUERYSTD: | |
1121 | { | |
1122 | v4l2_std_id *p = arg; | |
1123 | ||
a399810c | 1124 | if (!ops->vidioc_querystd) |
35ea11ff | 1125 | break; |
a399810c | 1126 | ret = ops->vidioc_querystd(file, fh, arg); |
35ea11ff HV |
1127 | if (!ret) |
1128 | dbgarg(cmd, "detected std=%08Lx\n", | |
1129 | (unsigned long long)*p); | |
1130 | break; | |
1131 | } | |
1132 | /* ------ input switching ---------- */ | |
1133 | /* FIXME: Inputs can be handled inside videodev2 */ | |
1134 | case VIDIOC_ENUMINPUT: | |
1135 | { | |
1136 | struct v4l2_input *p = arg; | |
35ea11ff | 1137 | |
a399810c | 1138 | if (!ops->vidioc_enum_input) |
35ea11ff | 1139 | break; |
35ea11ff | 1140 | |
a399810c | 1141 | ret = ops->vidioc_enum_input(file, fh, p); |
35ea11ff HV |
1142 | if (!ret) |
1143 | dbgarg(cmd, "index=%d, name=%s, type=%d, " | |
1144 | "audioset=%d, " | |
1145 | "tuner=%d, std=%08Lx, status=%d\n", | |
1146 | p->index, p->name, p->type, p->audioset, | |
1147 | p->tuner, | |
1148 | (unsigned long long)p->std, | |
1149 | p->status); | |
1150 | break; | |
1151 | } | |
1152 | case VIDIOC_G_INPUT: | |
1153 | { | |
1154 | unsigned int *i = arg; | |
1155 | ||
a399810c | 1156 | if (!ops->vidioc_g_input) |
35ea11ff | 1157 | break; |
a399810c | 1158 | ret = ops->vidioc_g_input(file, fh, i); |
35ea11ff HV |
1159 | if (!ret) |
1160 | dbgarg(cmd, "value=%d\n", *i); | |
1161 | break; | |
1162 | } | |
1163 | case VIDIOC_S_INPUT: | |
1164 | { | |
1165 | unsigned int *i = arg; | |
1166 | ||
a399810c | 1167 | if (!ops->vidioc_s_input) |
35ea11ff HV |
1168 | break; |
1169 | dbgarg(cmd, "value=%d\n", *i); | |
a399810c | 1170 | ret = ops->vidioc_s_input(file, fh, *i); |
35ea11ff HV |
1171 | break; |
1172 | } | |
1173 | ||
1174 | /* ------ output switching ---------- */ | |
1175 | case VIDIOC_ENUMOUTPUT: | |
1176 | { | |
1177 | struct v4l2_output *p = arg; | |
35ea11ff | 1178 | |
a399810c | 1179 | if (!ops->vidioc_enum_output) |
35ea11ff | 1180 | break; |
35ea11ff | 1181 | |
a399810c | 1182 | ret = ops->vidioc_enum_output(file, fh, p); |
35ea11ff HV |
1183 | if (!ret) |
1184 | dbgarg(cmd, "index=%d, name=%s, type=%d, " | |
1185 | "audioset=0x%x, " | |
1186 | "modulator=%d, std=0x%08Lx\n", | |
1187 | p->index, p->name, p->type, p->audioset, | |
1188 | p->modulator, (unsigned long long)p->std); | |
1189 | break; | |
1190 | } | |
1191 | case VIDIOC_G_OUTPUT: | |
1192 | { | |
1193 | unsigned int *i = arg; | |
1194 | ||
a399810c | 1195 | if (!ops->vidioc_g_output) |
35ea11ff | 1196 | break; |
a399810c | 1197 | ret = ops->vidioc_g_output(file, fh, i); |
35ea11ff HV |
1198 | if (!ret) |
1199 | dbgarg(cmd, "value=%d\n", *i); | |
1200 | break; | |
1201 | } | |
1202 | case VIDIOC_S_OUTPUT: | |
1203 | { | |
1204 | unsigned int *i = arg; | |
1205 | ||
a399810c | 1206 | if (!ops->vidioc_s_output) |
35ea11ff HV |
1207 | break; |
1208 | dbgarg(cmd, "value=%d\n", *i); | |
a399810c | 1209 | ret = ops->vidioc_s_output(file, fh, *i); |
35ea11ff HV |
1210 | break; |
1211 | } | |
1212 | ||
1213 | /* --- controls ---------------------------------------------- */ | |
1214 | case VIDIOC_QUERYCTRL: | |
1215 | { | |
1216 | struct v4l2_queryctrl *p = arg; | |
1217 | ||
a399810c | 1218 | if (!ops->vidioc_queryctrl) |
35ea11ff | 1219 | break; |
a399810c | 1220 | ret = ops->vidioc_queryctrl(file, fh, p); |
35ea11ff HV |
1221 | if (!ret) |
1222 | dbgarg(cmd, "id=0x%x, type=%d, name=%s, min/max=%d/%d, " | |
1223 | "step=%d, default=%d, flags=0x%08x\n", | |
1224 | p->id, p->type, p->name, | |
1225 | p->minimum, p->maximum, | |
1226 | p->step, p->default_value, p->flags); | |
1227 | else | |
1228 | dbgarg(cmd, "id=0x%x\n", p->id); | |
1229 | break; | |
1230 | } | |
1231 | case VIDIOC_G_CTRL: | |
1232 | { | |
1233 | struct v4l2_control *p = arg; | |
1234 | ||
a399810c HV |
1235 | if (ops->vidioc_g_ctrl) |
1236 | ret = ops->vidioc_g_ctrl(file, fh, p); | |
1237 | else if (ops->vidioc_g_ext_ctrls) { | |
35ea11ff HV |
1238 | struct v4l2_ext_controls ctrls; |
1239 | struct v4l2_ext_control ctrl; | |
1240 | ||
1241 | ctrls.ctrl_class = V4L2_CTRL_ID2CLASS(p->id); | |
1242 | ctrls.count = 1; | |
1243 | ctrls.controls = &ctrl; | |
1244 | ctrl.id = p->id; | |
1245 | ctrl.value = p->value; | |
1246 | if (check_ext_ctrls(&ctrls, 1)) { | |
a399810c | 1247 | ret = ops->vidioc_g_ext_ctrls(file, fh, &ctrls); |
35ea11ff HV |
1248 | if (ret == 0) |
1249 | p->value = ctrl.value; | |
1250 | } | |
1251 | } else | |
1252 | break; | |
1253 | if (!ret) | |
1254 | dbgarg(cmd, "id=0x%x, value=%d\n", p->id, p->value); | |
1255 | else | |
1256 | dbgarg(cmd, "id=0x%x\n", p->id); | |
1257 | break; | |
1258 | } | |
1259 | case VIDIOC_S_CTRL: | |
1260 | { | |
1261 | struct v4l2_control *p = arg; | |
1262 | struct v4l2_ext_controls ctrls; | |
1263 | struct v4l2_ext_control ctrl; | |
1264 | ||
a399810c | 1265 | if (!ops->vidioc_s_ctrl && !ops->vidioc_s_ext_ctrls) |
35ea11ff HV |
1266 | break; |
1267 | ||
1268 | dbgarg(cmd, "id=0x%x, value=%d\n", p->id, p->value); | |
1269 | ||
a399810c HV |
1270 | if (ops->vidioc_s_ctrl) { |
1271 | ret = ops->vidioc_s_ctrl(file, fh, p); | |
35ea11ff HV |
1272 | break; |
1273 | } | |
a399810c | 1274 | if (!ops->vidioc_s_ext_ctrls) |
35ea11ff HV |
1275 | break; |
1276 | ||
1277 | ctrls.ctrl_class = V4L2_CTRL_ID2CLASS(p->id); | |
1278 | ctrls.count = 1; | |
1279 | ctrls.controls = &ctrl; | |
1280 | ctrl.id = p->id; | |
1281 | ctrl.value = p->value; | |
1282 | if (check_ext_ctrls(&ctrls, 1)) | |
a399810c | 1283 | ret = ops->vidioc_s_ext_ctrls(file, fh, &ctrls); |
35ea11ff HV |
1284 | break; |
1285 | } | |
1286 | case VIDIOC_G_EXT_CTRLS: | |
1287 | { | |
1288 | struct v4l2_ext_controls *p = arg; | |
1289 | ||
1290 | p->error_idx = p->count; | |
a399810c | 1291 | if (!ops->vidioc_g_ext_ctrls) |
35ea11ff HV |
1292 | break; |
1293 | if (check_ext_ctrls(p, 0)) | |
a399810c | 1294 | ret = ops->vidioc_g_ext_ctrls(file, fh, p); |
35ea11ff HV |
1295 | v4l_print_ext_ctrls(cmd, vfd, p, !ret); |
1296 | break; | |
1297 | } | |
1298 | case VIDIOC_S_EXT_CTRLS: | |
1299 | { | |
1300 | struct v4l2_ext_controls *p = arg; | |
1301 | ||
1302 | p->error_idx = p->count; | |
a399810c | 1303 | if (!ops->vidioc_s_ext_ctrls) |
35ea11ff HV |
1304 | break; |
1305 | v4l_print_ext_ctrls(cmd, vfd, p, 1); | |
1306 | if (check_ext_ctrls(p, 0)) | |
a399810c | 1307 | ret = ops->vidioc_s_ext_ctrls(file, fh, p); |
35ea11ff HV |
1308 | break; |
1309 | } | |
1310 | case VIDIOC_TRY_EXT_CTRLS: | |
1311 | { | |
1312 | struct v4l2_ext_controls *p = arg; | |
1313 | ||
1314 | p->error_idx = p->count; | |
a399810c | 1315 | if (!ops->vidioc_try_ext_ctrls) |
35ea11ff HV |
1316 | break; |
1317 | v4l_print_ext_ctrls(cmd, vfd, p, 1); | |
1318 | if (check_ext_ctrls(p, 0)) | |
a399810c | 1319 | ret = ops->vidioc_try_ext_ctrls(file, fh, p); |
35ea11ff HV |
1320 | break; |
1321 | } | |
1322 | case VIDIOC_QUERYMENU: | |
1323 | { | |
1324 | struct v4l2_querymenu *p = arg; | |
1325 | ||
a399810c | 1326 | if (!ops->vidioc_querymenu) |
35ea11ff | 1327 | break; |
a399810c | 1328 | ret = ops->vidioc_querymenu(file, fh, p); |
35ea11ff HV |
1329 | if (!ret) |
1330 | dbgarg(cmd, "id=0x%x, index=%d, name=%s\n", | |
1331 | p->id, p->index, p->name); | |
1332 | else | |
1333 | dbgarg(cmd, "id=0x%x, index=%d\n", | |
1334 | p->id, p->index); | |
1335 | break; | |
1336 | } | |
1337 | /* --- audio ---------------------------------------------- */ | |
1338 | case VIDIOC_ENUMAUDIO: | |
1339 | { | |
1340 | struct v4l2_audio *p = arg; | |
1341 | ||
a399810c | 1342 | if (!ops->vidioc_enumaudio) |
35ea11ff | 1343 | break; |
a399810c | 1344 | ret = ops->vidioc_enumaudio(file, fh, p); |
35ea11ff HV |
1345 | if (!ret) |
1346 | dbgarg(cmd, "index=%d, name=%s, capability=0x%x, " | |
1347 | "mode=0x%x\n", p->index, p->name, | |
1348 | p->capability, p->mode); | |
1349 | else | |
1350 | dbgarg(cmd, "index=%d\n", p->index); | |
1351 | break; | |
1352 | } | |
1353 | case VIDIOC_G_AUDIO: | |
1354 | { | |
1355 | struct v4l2_audio *p = arg; | |
35ea11ff | 1356 | |
a399810c | 1357 | if (!ops->vidioc_g_audio) |
35ea11ff HV |
1358 | break; |
1359 | ||
a399810c | 1360 | ret = ops->vidioc_g_audio(file, fh, p); |
35ea11ff HV |
1361 | if (!ret) |
1362 | dbgarg(cmd, "index=%d, name=%s, capability=0x%x, " | |
1363 | "mode=0x%x\n", p->index, | |
1364 | p->name, p->capability, p->mode); | |
1365 | else | |
1366 | dbgarg(cmd, "index=%d\n", p->index); | |
1367 | break; | |
1368 | } | |
1369 | case VIDIOC_S_AUDIO: | |
1370 | { | |
1371 | struct v4l2_audio *p = arg; | |
1372 | ||
a399810c | 1373 | if (!ops->vidioc_s_audio) |
35ea11ff HV |
1374 | break; |
1375 | dbgarg(cmd, "index=%d, name=%s, capability=0x%x, " | |
1376 | "mode=0x%x\n", p->index, p->name, | |
1377 | p->capability, p->mode); | |
a399810c | 1378 | ret = ops->vidioc_s_audio(file, fh, p); |
35ea11ff HV |
1379 | break; |
1380 | } | |
1381 | case VIDIOC_ENUMAUDOUT: | |
1382 | { | |
1383 | struct v4l2_audioout *p = arg; | |
1384 | ||
a399810c | 1385 | if (!ops->vidioc_enumaudout) |
35ea11ff HV |
1386 | break; |
1387 | dbgarg(cmd, "Enum for index=%d\n", p->index); | |
a399810c | 1388 | ret = ops->vidioc_enumaudout(file, fh, p); |
35ea11ff HV |
1389 | if (!ret) |
1390 | dbgarg2("index=%d, name=%s, capability=%d, " | |
1391 | "mode=%d\n", p->index, p->name, | |
1392 | p->capability, p->mode); | |
1393 | break; | |
1394 | } | |
1395 | case VIDIOC_G_AUDOUT: | |
1396 | { | |
1397 | struct v4l2_audioout *p = arg; | |
1398 | ||
a399810c | 1399 | if (!ops->vidioc_g_audout) |
35ea11ff | 1400 | break; |
337f9d20 | 1401 | |
a399810c | 1402 | ret = ops->vidioc_g_audout(file, fh, p); |
35ea11ff HV |
1403 | if (!ret) |
1404 | dbgarg2("index=%d, name=%s, capability=%d, " | |
1405 | "mode=%d\n", p->index, p->name, | |
1406 | p->capability, p->mode); | |
1407 | break; | |
1408 | } | |
1409 | case VIDIOC_S_AUDOUT: | |
1410 | { | |
1411 | struct v4l2_audioout *p = arg; | |
1412 | ||
a399810c | 1413 | if (!ops->vidioc_s_audout) |
35ea11ff HV |
1414 | break; |
1415 | dbgarg(cmd, "index=%d, name=%s, capability=%d, " | |
1416 | "mode=%d\n", p->index, p->name, | |
1417 | p->capability, p->mode); | |
1418 | ||
a399810c | 1419 | ret = ops->vidioc_s_audout(file, fh, p); |
35ea11ff HV |
1420 | break; |
1421 | } | |
1422 | case VIDIOC_G_MODULATOR: | |
1423 | { | |
1424 | struct v4l2_modulator *p = arg; | |
1425 | ||
a399810c | 1426 | if (!ops->vidioc_g_modulator) |
35ea11ff | 1427 | break; |
a399810c | 1428 | ret = ops->vidioc_g_modulator(file, fh, p); |
35ea11ff HV |
1429 | if (!ret) |
1430 | dbgarg(cmd, "index=%d, name=%s, " | |
1431 | "capability=%d, rangelow=%d," | |
1432 | " rangehigh=%d, txsubchans=%d\n", | |
1433 | p->index, p->name, p->capability, | |
1434 | p->rangelow, p->rangehigh, | |
1435 | p->txsubchans); | |
1436 | break; | |
1437 | } | |
1438 | case VIDIOC_S_MODULATOR: | |
1439 | { | |
1440 | struct v4l2_modulator *p = arg; | |
1441 | ||
a399810c | 1442 | if (!ops->vidioc_s_modulator) |
35ea11ff HV |
1443 | break; |
1444 | dbgarg(cmd, "index=%d, name=%s, capability=%d, " | |
1445 | "rangelow=%d, rangehigh=%d, txsubchans=%d\n", | |
1446 | p->index, p->name, p->capability, p->rangelow, | |
1447 | p->rangehigh, p->txsubchans); | |
a399810c | 1448 | ret = ops->vidioc_s_modulator(file, fh, p); |
35ea11ff HV |
1449 | break; |
1450 | } | |
1451 | case VIDIOC_G_CROP: | |
1452 | { | |
1453 | struct v4l2_crop *p = arg; | |
1454 | ||
a399810c | 1455 | if (!ops->vidioc_g_crop) |
35ea11ff | 1456 | break; |
a56a18c3 | 1457 | |
35ea11ff | 1458 | dbgarg(cmd, "type=%s\n", prt_names(p->type, v4l2_type_names)); |
a399810c | 1459 | ret = ops->vidioc_g_crop(file, fh, p); |
35ea11ff HV |
1460 | if (!ret) |
1461 | dbgrect(vfd, "", &p->c); | |
1462 | break; | |
1463 | } | |
1464 | case VIDIOC_S_CROP: | |
1465 | { | |
1466 | struct v4l2_crop *p = arg; | |
1467 | ||
a399810c | 1468 | if (!ops->vidioc_s_crop) |
35ea11ff HV |
1469 | break; |
1470 | dbgarg(cmd, "type=%s\n", prt_names(p->type, v4l2_type_names)); | |
1471 | dbgrect(vfd, "", &p->c); | |
a399810c | 1472 | ret = ops->vidioc_s_crop(file, fh, p); |
35ea11ff HV |
1473 | break; |
1474 | } | |
1475 | case VIDIOC_CROPCAP: | |
1476 | { | |
1477 | struct v4l2_cropcap *p = arg; | |
1478 | ||
1479 | /*FIXME: Should also show v4l2_fract pixelaspect */ | |
a399810c | 1480 | if (!ops->vidioc_cropcap) |
35ea11ff | 1481 | break; |
a56a18c3 | 1482 | |
35ea11ff | 1483 | dbgarg(cmd, "type=%s\n", prt_names(p->type, v4l2_type_names)); |
a399810c | 1484 | ret = ops->vidioc_cropcap(file, fh, p); |
35ea11ff HV |
1485 | if (!ret) { |
1486 | dbgrect(vfd, "bounds ", &p->bounds); | |
1487 | dbgrect(vfd, "defrect ", &p->defrect); | |
1488 | } | |
1489 | break; | |
1490 | } | |
1491 | case VIDIOC_G_JPEGCOMP: | |
1492 | { | |
1493 | struct v4l2_jpegcompression *p = arg; | |
1494 | ||
a399810c | 1495 | if (!ops->vidioc_g_jpegcomp) |
35ea11ff | 1496 | break; |
a56a18c3 | 1497 | |
a399810c | 1498 | ret = ops->vidioc_g_jpegcomp(file, fh, p); |
35ea11ff HV |
1499 | if (!ret) |
1500 | dbgarg(cmd, "quality=%d, APPn=%d, " | |
1501 | "APP_len=%d, COM_len=%d, " | |
1502 | "jpeg_markers=%d\n", | |
1503 | p->quality, p->APPn, p->APP_len, | |
1504 | p->COM_len, p->jpeg_markers); | |
1505 | break; | |
1506 | } | |
1507 | case VIDIOC_S_JPEGCOMP: | |
1508 | { | |
1509 | struct v4l2_jpegcompression *p = arg; | |
1510 | ||
a399810c | 1511 | if (!ops->vidioc_g_jpegcomp) |
35ea11ff HV |
1512 | break; |
1513 | dbgarg(cmd, "quality=%d, APPn=%d, APP_len=%d, " | |
1514 | "COM_len=%d, jpeg_markers=%d\n", | |
1515 | p->quality, p->APPn, p->APP_len, | |
1516 | p->COM_len, p->jpeg_markers); | |
a399810c | 1517 | ret = ops->vidioc_s_jpegcomp(file, fh, p); |
35ea11ff HV |
1518 | break; |
1519 | } | |
1520 | case VIDIOC_G_ENC_INDEX: | |
1521 | { | |
1522 | struct v4l2_enc_idx *p = arg; | |
1523 | ||
a399810c | 1524 | if (!ops->vidioc_g_enc_index) |
35ea11ff | 1525 | break; |
a399810c | 1526 | ret = ops->vidioc_g_enc_index(file, fh, p); |
35ea11ff HV |
1527 | if (!ret) |
1528 | dbgarg(cmd, "entries=%d, entries_cap=%d\n", | |
1529 | p->entries, p->entries_cap); | |
1530 | break; | |
1531 | } | |
1532 | case VIDIOC_ENCODER_CMD: | |
1533 | { | |
1534 | struct v4l2_encoder_cmd *p = arg; | |
1535 | ||
a399810c | 1536 | if (!ops->vidioc_encoder_cmd) |
35ea11ff | 1537 | break; |
a399810c | 1538 | ret = ops->vidioc_encoder_cmd(file, fh, p); |
35ea11ff HV |
1539 | if (!ret) |
1540 | dbgarg(cmd, "cmd=%d, flags=%x\n", p->cmd, p->flags); | |
1541 | break; | |
1542 | } | |
1543 | case VIDIOC_TRY_ENCODER_CMD: | |
1544 | { | |
1545 | struct v4l2_encoder_cmd *p = arg; | |
1546 | ||
a399810c | 1547 | if (!ops->vidioc_try_encoder_cmd) |
35ea11ff | 1548 | break; |
a399810c | 1549 | ret = ops->vidioc_try_encoder_cmd(file, fh, p); |
35ea11ff HV |
1550 | if (!ret) |
1551 | dbgarg(cmd, "cmd=%d, flags=%x\n", p->cmd, p->flags); | |
1552 | break; | |
1553 | } | |
1554 | case VIDIOC_G_PARM: | |
1555 | { | |
1556 | struct v4l2_streamparm *p = arg; | |
35ea11ff | 1557 | |
a399810c | 1558 | if (ops->vidioc_g_parm) { |
34796bc0 TP |
1559 | ret = check_fmt(ops, p->type); |
1560 | if (ret) | |
1561 | break; | |
a399810c | 1562 | ret = ops->vidioc_g_parm(file, fh, p); |
35ea11ff | 1563 | } else { |
9bedc7f7 HV |
1564 | v4l2_std_id std = vfd->current_norm; |
1565 | ||
35ea11ff HV |
1566 | if (p->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) |
1567 | return -EINVAL; | |
1568 | ||
35ea11ff | 1569 | ret = 0; |
9bedc7f7 HV |
1570 | if (ops->vidioc_g_std) |
1571 | ret = ops->vidioc_g_std(file, fh, &std); | |
1572 | else if (std == 0) | |
1573 | ret = -EINVAL; | |
1574 | if (ret == 0) | |
1575 | v4l2_video_std_frame_period(std, | |
1576 | &p->parm.capture.timeperframe); | |
35ea11ff HV |
1577 | } |
1578 | ||
1579 | dbgarg(cmd, "type=%d\n", p->type); | |
1580 | break; | |
1581 | } | |
1582 | case VIDIOC_S_PARM: | |
1583 | { | |
1584 | struct v4l2_streamparm *p = arg; | |
1585 | ||
a399810c | 1586 | if (!ops->vidioc_s_parm) |
35ea11ff | 1587 | break; |
34796bc0 TP |
1588 | ret = check_fmt(ops, p->type); |
1589 | if (ret) | |
1590 | break; | |
1591 | ||
35ea11ff | 1592 | dbgarg(cmd, "type=%d\n", p->type); |
a399810c | 1593 | ret = ops->vidioc_s_parm(file, fh, p); |
35ea11ff HV |
1594 | break; |
1595 | } | |
1596 | case VIDIOC_G_TUNER: | |
1597 | { | |
1598 | struct v4l2_tuner *p = arg; | |
35ea11ff | 1599 | |
a399810c | 1600 | if (!ops->vidioc_g_tuner) |
35ea11ff HV |
1601 | break; |
1602 | ||
a399810c | 1603 | ret = ops->vidioc_g_tuner(file, fh, p); |
35ea11ff HV |
1604 | if (!ret) |
1605 | dbgarg(cmd, "index=%d, name=%s, type=%d, " | |
1606 | "capability=0x%x, rangelow=%d, " | |
1607 | "rangehigh=%d, signal=%d, afc=%d, " | |
1608 | "rxsubchans=0x%x, audmode=%d\n", | |
1609 | p->index, p->name, p->type, | |
1610 | p->capability, p->rangelow, | |
1611 | p->rangehigh, p->signal, p->afc, | |
1612 | p->rxsubchans, p->audmode); | |
1613 | break; | |
1614 | } | |
1615 | case VIDIOC_S_TUNER: | |
1616 | { | |
1617 | struct v4l2_tuner *p = arg; | |
1618 | ||
a399810c | 1619 | if (!ops->vidioc_s_tuner) |
35ea11ff HV |
1620 | break; |
1621 | dbgarg(cmd, "index=%d, name=%s, type=%d, " | |
1622 | "capability=0x%x, rangelow=%d, " | |
1623 | "rangehigh=%d, signal=%d, afc=%d, " | |
1624 | "rxsubchans=0x%x, audmode=%d\n", | |
1625 | p->index, p->name, p->type, | |
1626 | p->capability, p->rangelow, | |
1627 | p->rangehigh, p->signal, p->afc, | |
1628 | p->rxsubchans, p->audmode); | |
a399810c | 1629 | ret = ops->vidioc_s_tuner(file, fh, p); |
35ea11ff HV |
1630 | break; |
1631 | } | |
1632 | case VIDIOC_G_FREQUENCY: | |
1633 | { | |
1634 | struct v4l2_frequency *p = arg; | |
1635 | ||
a399810c | 1636 | if (!ops->vidioc_g_frequency) |
35ea11ff HV |
1637 | break; |
1638 | ||
a399810c | 1639 | ret = ops->vidioc_g_frequency(file, fh, p); |
35ea11ff HV |
1640 | if (!ret) |
1641 | dbgarg(cmd, "tuner=%d, type=%d, frequency=%d\n", | |
1642 | p->tuner, p->type, p->frequency); | |
1643 | break; | |
1644 | } | |
1645 | case VIDIOC_S_FREQUENCY: | |
1646 | { | |
1647 | struct v4l2_frequency *p = arg; | |
1648 | ||
a399810c | 1649 | if (!ops->vidioc_s_frequency) |
35ea11ff HV |
1650 | break; |
1651 | dbgarg(cmd, "tuner=%d, type=%d, frequency=%d\n", | |
1652 | p->tuner, p->type, p->frequency); | |
a399810c | 1653 | ret = ops->vidioc_s_frequency(file, fh, p); |
35ea11ff HV |
1654 | break; |
1655 | } | |
1656 | case VIDIOC_G_SLICED_VBI_CAP: | |
1657 | { | |
1658 | struct v4l2_sliced_vbi_cap *p = arg; | |
35ea11ff | 1659 | |
a399810c | 1660 | if (!ops->vidioc_g_sliced_vbi_cap) |
35ea11ff | 1661 | break; |
19c96e4b TP |
1662 | |
1663 | /* Clear up to type, everything after type is zerod already */ | |
1664 | memset(p, 0, offsetof(struct v4l2_sliced_vbi_cap, type)); | |
1665 | ||
35ea11ff | 1666 | dbgarg(cmd, "type=%s\n", prt_names(p->type, v4l2_type_names)); |
a399810c | 1667 | ret = ops->vidioc_g_sliced_vbi_cap(file, fh, p); |
35ea11ff HV |
1668 | if (!ret) |
1669 | dbgarg2("service_set=%d\n", p->service_set); | |
1670 | break; | |
1671 | } | |
1672 | case VIDIOC_LOG_STATUS: | |
1673 | { | |
a399810c | 1674 | if (!ops->vidioc_log_status) |
35ea11ff | 1675 | break; |
a399810c | 1676 | ret = ops->vidioc_log_status(file, fh); |
35ea11ff HV |
1677 | break; |
1678 | } | |
1679 | #ifdef CONFIG_VIDEO_ADV_DEBUG | |
1680 | case VIDIOC_DBG_G_REGISTER: | |
1681 | { | |
aecde8b5 | 1682 | struct v4l2_dbg_register *p = arg; |
35ea11ff HV |
1683 | |
1684 | if (!capable(CAP_SYS_ADMIN)) | |
1685 | ret = -EPERM; | |
a399810c HV |
1686 | else if (ops->vidioc_g_register) |
1687 | ret = ops->vidioc_g_register(file, fh, p); | |
35ea11ff HV |
1688 | break; |
1689 | } | |
1690 | case VIDIOC_DBG_S_REGISTER: | |
1691 | { | |
aecde8b5 | 1692 | struct v4l2_dbg_register *p = arg; |
35ea11ff HV |
1693 | |
1694 | if (!capable(CAP_SYS_ADMIN)) | |
1695 | ret = -EPERM; | |
a399810c HV |
1696 | else if (ops->vidioc_s_register) |
1697 | ret = ops->vidioc_s_register(file, fh, p); | |
35ea11ff HV |
1698 | break; |
1699 | } | |
1700 | #endif | |
aecde8b5 | 1701 | case VIDIOC_DBG_G_CHIP_IDENT: |
35ea11ff | 1702 | { |
aecde8b5 | 1703 | struct v4l2_dbg_chip_ident *p = arg; |
35ea11ff | 1704 | |
a399810c | 1705 | if (!ops->vidioc_g_chip_ident) |
35ea11ff | 1706 | break; |
80b36e0f HV |
1707 | p->ident = V4L2_IDENT_NONE; |
1708 | p->revision = 0; | |
a399810c | 1709 | ret = ops->vidioc_g_chip_ident(file, fh, p); |
35ea11ff HV |
1710 | if (!ret) |
1711 | dbgarg(cmd, "chip_ident=%u, revision=0x%x\n", p->ident, p->revision); | |
1712 | break; | |
1713 | } | |
35ea11ff HV |
1714 | case VIDIOC_S_HW_FREQ_SEEK: |
1715 | { | |
1716 | struct v4l2_hw_freq_seek *p = arg; | |
1717 | ||
a399810c | 1718 | if (!ops->vidioc_s_hw_freq_seek) |
35ea11ff HV |
1719 | break; |
1720 | dbgarg(cmd, | |
1721 | "tuner=%d, type=%d, seek_upward=%d, wrap_around=%d\n", | |
1722 | p->tuner, p->type, p->seek_upward, p->wrap_around); | |
a399810c HV |
1723 | ret = ops->vidioc_s_hw_freq_seek(file, fh, p); |
1724 | break; | |
1725 | } | |
74d83fa0 MCC |
1726 | case VIDIOC_ENUM_FRAMESIZES: |
1727 | { | |
1728 | struct v4l2_frmsizeenum *p = arg; | |
1729 | ||
1730 | if (!ops->vidioc_enum_framesizes) | |
1731 | break; | |
1732 | ||
74d83fa0 MCC |
1733 | ret = ops->vidioc_enum_framesizes(file, fh, p); |
1734 | dbgarg(cmd, | |
d1afe425 MCC |
1735 | "index=%d, pixelformat=%c%c%c%c, type=%d ", |
1736 | p->index, | |
1737 | (p->pixel_format & 0xff), | |
1738 | (p->pixel_format >> 8) & 0xff, | |
1739 | (p->pixel_format >> 16) & 0xff, | |
1740 | (p->pixel_format >> 24) & 0xff, | |
1741 | p->type); | |
74d83fa0 MCC |
1742 | switch (p->type) { |
1743 | case V4L2_FRMSIZE_TYPE_DISCRETE: | |
d33fbcbb | 1744 | dbgarg3("width = %d, height=%d\n", |
74d83fa0 MCC |
1745 | p->discrete.width, p->discrete.height); |
1746 | break; | |
1747 | case V4L2_FRMSIZE_TYPE_STEPWISE: | |
d33fbcbb | 1748 | dbgarg3("min %dx%d, max %dx%d, step %dx%d\n", |
74d83fa0 MCC |
1749 | p->stepwise.min_width, p->stepwise.min_height, |
1750 | p->stepwise.step_width, p->stepwise.step_height, | |
1751 | p->stepwise.max_width, p->stepwise.max_height); | |
1752 | break; | |
1753 | case V4L2_FRMSIZE_TYPE_CONTINUOUS: | |
d33fbcbb | 1754 | dbgarg3("continuous\n"); |
74d83fa0 MCC |
1755 | break; |
1756 | default: | |
d33fbcbb | 1757 | dbgarg3("- Unknown type!\n"); |
74d83fa0 MCC |
1758 | } |
1759 | ||
1760 | break; | |
1761 | } | |
1762 | case VIDIOC_ENUM_FRAMEINTERVALS: | |
1763 | { | |
1764 | struct v4l2_frmivalenum *p = arg; | |
1765 | ||
1766 | if (!ops->vidioc_enum_frameintervals) | |
1767 | break; | |
1768 | ||
74d83fa0 MCC |
1769 | ret = ops->vidioc_enum_frameintervals(file, fh, p); |
1770 | dbgarg(cmd, | |
1771 | "index=%d, pixelformat=%d, width=%d, height=%d, type=%d ", | |
1772 | p->index, p->pixel_format, | |
1773 | p->width, p->height, p->type); | |
1774 | switch (p->type) { | |
1775 | case V4L2_FRMIVAL_TYPE_DISCRETE: | |
1776 | dbgarg2("fps=%d/%d\n", | |
1777 | p->discrete.numerator, | |
1778 | p->discrete.denominator); | |
1779 | break; | |
1780 | case V4L2_FRMIVAL_TYPE_STEPWISE: | |
1958578d MCC |
1781 | dbgarg2("min=%d/%d, max=%d/%d, step=%d/%d\n", |
1782 | p->stepwise.min.numerator, | |
1783 | p->stepwise.min.denominator, | |
1784 | p->stepwise.max.numerator, | |
1785 | p->stepwise.max.denominator, | |
1786 | p->stepwise.step.numerator, | |
1787 | p->stepwise.step.denominator); | |
74d83fa0 MCC |
1788 | break; |
1789 | case V4L2_FRMIVAL_TYPE_CONTINUOUS: | |
1790 | dbgarg2("continuous\n"); | |
1791 | break; | |
1792 | default: | |
1793 | dbgarg2("- Unknown type!\n"); | |
1794 | } | |
1795 | break; | |
1796 | } | |
1797 | ||
a399810c HV |
1798 | default: |
1799 | { | |
1800 | if (!ops->vidioc_default) | |
1801 | break; | |
1802 | ret = ops->vidioc_default(file, fh, cmd, arg); | |
35ea11ff HV |
1803 | break; |
1804 | } | |
1805 | } /* switch */ | |
1806 | ||
1807 | if (vfd->debug & V4L2_DEBUG_IOCTL_ARG) { | |
1808 | if (ret < 0) { | |
1809 | v4l_print_ioctl(vfd->name, cmd); | |
069b7479 | 1810 | printk(KERN_CONT " error %ld\n", ret); |
35ea11ff HV |
1811 | } |
1812 | } | |
1813 | ||
1814 | return ret; | |
1815 | } | |
1816 | ||
19c96e4b TP |
1817 | /* In some cases, only a few fields are used as input, i.e. when the app sets |
1818 | * "index" and then the driver fills in the rest of the structure for the thing | |
1819 | * with that index. We only need to copy up the first non-input field. */ | |
1820 | static unsigned long cmd_input_size(unsigned int cmd) | |
1821 | { | |
1822 | /* Size of structure up to and including 'field' */ | |
9f1a693f HV |
1823 | #define CMDINSIZE(cmd, type, field) \ |
1824 | case VIDIOC_##cmd: \ | |
1825 | return offsetof(struct v4l2_##type, field) + \ | |
1826 | sizeof(((struct v4l2_##type *)0)->field); | |
19c96e4b | 1827 | |
9f1a693f | 1828 | switch (cmd) { |
19c96e4b TP |
1829 | CMDINSIZE(ENUM_FMT, fmtdesc, type); |
1830 | CMDINSIZE(G_FMT, format, type); | |
1831 | CMDINSIZE(QUERYBUF, buffer, type); | |
1832 | CMDINSIZE(G_PARM, streamparm, type); | |
1833 | CMDINSIZE(ENUMSTD, standard, index); | |
1834 | CMDINSIZE(ENUMINPUT, input, index); | |
1835 | CMDINSIZE(G_CTRL, control, id); | |
1836 | CMDINSIZE(G_TUNER, tuner, index); | |
1837 | CMDINSIZE(QUERYCTRL, queryctrl, id); | |
1838 | CMDINSIZE(QUERYMENU, querymenu, index); | |
1839 | CMDINSIZE(ENUMOUTPUT, output, index); | |
1840 | CMDINSIZE(G_MODULATOR, modulator, index); | |
1841 | CMDINSIZE(G_FREQUENCY, frequency, tuner); | |
1842 | CMDINSIZE(CROPCAP, cropcap, type); | |
1843 | CMDINSIZE(G_CROP, crop, type); | |
1844 | CMDINSIZE(ENUMAUDIO, audio, index); | |
1845 | CMDINSIZE(ENUMAUDOUT, audioout, index); | |
1846 | CMDINSIZE(ENCODER_CMD, encoder_cmd, flags); | |
1847 | CMDINSIZE(TRY_ENCODER_CMD, encoder_cmd, flags); | |
1848 | CMDINSIZE(G_SLICED_VBI_CAP, sliced_vbi_cap, type); | |
1849 | CMDINSIZE(ENUM_FRAMESIZES, frmsizeenum, pixel_format); | |
1850 | CMDINSIZE(ENUM_FRAMEINTERVALS, frmivalenum, height); | |
1851 | default: | |
1852 | return _IOC_SIZE(cmd); | |
1853 | } | |
1854 | } | |
1855 | ||
069b7479 | 1856 | long video_ioctl2(struct file *file, |
35ea11ff HV |
1857 | unsigned int cmd, unsigned long arg) |
1858 | { | |
1859 | char sbuf[128]; | |
1860 | void *mbuf = NULL; | |
1861 | void *parg = NULL; | |
069b7479 | 1862 | long err = -EINVAL; |
35ea11ff HV |
1863 | int is_ext_ctrl; |
1864 | size_t ctrls_size = 0; | |
1865 | void __user *user_ptr = NULL; | |
1866 | ||
1867 | #ifdef __OLD_VIDIOC_ | |
1868 | cmd = video_fix_command(cmd); | |
1869 | #endif | |
1870 | is_ext_ctrl = (cmd == VIDIOC_S_EXT_CTRLS || cmd == VIDIOC_G_EXT_CTRLS || | |
1871 | cmd == VIDIOC_TRY_EXT_CTRLS); | |
1872 | ||
1873 | /* Copy arguments into temp kernel buffer */ | |
337f9d20 | 1874 | if (_IOC_DIR(cmd) != _IOC_NONE) { |
35ea11ff HV |
1875 | if (_IOC_SIZE(cmd) <= sizeof(sbuf)) { |
1876 | parg = sbuf; | |
1877 | } else { | |
1878 | /* too big to allocate from stack */ | |
1879 | mbuf = kmalloc(_IOC_SIZE(cmd), GFP_KERNEL); | |
1880 | if (NULL == mbuf) | |
1881 | return -ENOMEM; | |
1882 | parg = mbuf; | |
1883 | } | |
1884 | ||
1885 | err = -EFAULT; | |
19c96e4b TP |
1886 | if (_IOC_DIR(cmd) & _IOC_WRITE) { |
1887 | unsigned long n = cmd_input_size(cmd); | |
1888 | ||
1889 | if (copy_from_user(parg, (void __user *)arg, n)) | |
35ea11ff | 1890 | goto out; |
19c96e4b TP |
1891 | |
1892 | /* zero out anything we don't copy from userspace */ | |
1893 | if (n < _IOC_SIZE(cmd)) | |
1894 | memset((u8 *)parg + n, 0, _IOC_SIZE(cmd) - n); | |
337f9d20 TP |
1895 | } else { |
1896 | /* read-only ioctl */ | |
1897 | memset(parg, 0, _IOC_SIZE(cmd)); | |
19c96e4b | 1898 | } |
35ea11ff HV |
1899 | } |
1900 | ||
1901 | if (is_ext_ctrl) { | |
1902 | struct v4l2_ext_controls *p = parg; | |
1903 | ||
1904 | /* In case of an error, tell the caller that it wasn't | |
1905 | a specific control that caused it. */ | |
1906 | p->error_idx = p->count; | |
1907 | user_ptr = (void __user *)p->controls; | |
1908 | if (p->count) { | |
1909 | ctrls_size = sizeof(struct v4l2_ext_control) * p->count; | |
1910 | /* Note: v4l2_ext_controls fits in sbuf[] so mbuf is still NULL. */ | |
1911 | mbuf = kmalloc(ctrls_size, GFP_KERNEL); | |
1912 | err = -ENOMEM; | |
1913 | if (NULL == mbuf) | |
1914 | goto out_ext_ctrl; | |
1915 | err = -EFAULT; | |
1916 | if (copy_from_user(mbuf, user_ptr, ctrls_size)) | |
1917 | goto out_ext_ctrl; | |
1918 | p->controls = mbuf; | |
1919 | } | |
1920 | } | |
1921 | ||
1922 | /* Handles IOCTL */ | |
b1f88407 | 1923 | err = __video_do_ioctl(file, cmd, parg); |
35ea11ff HV |
1924 | if (err == -ENOIOCTLCMD) |
1925 | err = -EINVAL; | |
1926 | if (is_ext_ctrl) { | |
1927 | struct v4l2_ext_controls *p = parg; | |
1928 | ||
1929 | p->controls = (void *)user_ptr; | |
1930 | if (p->count && err == 0 && copy_to_user(user_ptr, mbuf, ctrls_size)) | |
1931 | err = -EFAULT; | |
1932 | goto out_ext_ctrl; | |
1933 | } | |
1934 | if (err < 0) | |
1935 | goto out; | |
1936 | ||
1937 | out_ext_ctrl: | |
1938 | /* Copy results into user buffer */ | |
1939 | switch (_IOC_DIR(cmd)) { | |
1940 | case _IOC_READ: | |
1941 | case (_IOC_WRITE | _IOC_READ): | |
1942 | if (copy_to_user((void __user *)arg, parg, _IOC_SIZE(cmd))) | |
1943 | err = -EFAULT; | |
1944 | break; | |
1945 | } | |
1946 | ||
1947 | out: | |
1948 | kfree(mbuf); | |
1949 | return err; | |
1950 | } | |
8a522c91 | 1951 | EXPORT_SYMBOL(video_ioctl2); |