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> | |
19 | ||
20 | #define __OLD_VIDIOC_ /* To allow fixing old calls */ | |
7e0a16f6 | 21 | #include <linux/videodev.h> |
35ea11ff HV |
22 | #include <linux/videodev2.h> |
23 | ||
24 | #ifdef CONFIG_VIDEO_V4L1 | |
25 | #include <linux/videodev.h> | |
26 | #endif | |
27 | #include <media/v4l2-common.h> | |
28 | #include <media/v4l2-ioctl.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 | ||
7ecc0cf9 TP |
52 | /* Zero out the end of the struct pointed to by p. Everthing after, but |
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", | |
169 | }; | |
170 | EXPORT_SYMBOL(v4l2_type_names); | |
171 | ||
172 | static const char *v4l2_memory_names[] = { | |
173 | [V4L2_MEMORY_MMAP] = "mmap", | |
174 | [V4L2_MEMORY_USERPTR] = "userptr", | |
175 | [V4L2_MEMORY_OVERLAY] = "overlay", | |
176 | }; | |
177 | ||
178 | #define prt_names(a, arr) ((((a) >= 0) && ((a) < ARRAY_SIZE(arr))) ? \ | |
179 | arr[a] : "unknown") | |
180 | ||
181 | /* ------------------------------------------------------------------ */ | |
182 | /* debug help functions */ | |
183 | ||
184 | #ifdef CONFIG_VIDEO_V4L1_COMPAT | |
185 | static const char *v4l1_ioctls[] = { | |
186 | [_IOC_NR(VIDIOCGCAP)] = "VIDIOCGCAP", | |
187 | [_IOC_NR(VIDIOCGCHAN)] = "VIDIOCGCHAN", | |
188 | [_IOC_NR(VIDIOCSCHAN)] = "VIDIOCSCHAN", | |
189 | [_IOC_NR(VIDIOCGTUNER)] = "VIDIOCGTUNER", | |
190 | [_IOC_NR(VIDIOCSTUNER)] = "VIDIOCSTUNER", | |
191 | [_IOC_NR(VIDIOCGPICT)] = "VIDIOCGPICT", | |
192 | [_IOC_NR(VIDIOCSPICT)] = "VIDIOCSPICT", | |
193 | [_IOC_NR(VIDIOCCAPTURE)] = "VIDIOCCAPTURE", | |
194 | [_IOC_NR(VIDIOCGWIN)] = "VIDIOCGWIN", | |
195 | [_IOC_NR(VIDIOCSWIN)] = "VIDIOCSWIN", | |
196 | [_IOC_NR(VIDIOCGFBUF)] = "VIDIOCGFBUF", | |
197 | [_IOC_NR(VIDIOCSFBUF)] = "VIDIOCSFBUF", | |
198 | [_IOC_NR(VIDIOCKEY)] = "VIDIOCKEY", | |
199 | [_IOC_NR(VIDIOCGFREQ)] = "VIDIOCGFREQ", | |
200 | [_IOC_NR(VIDIOCSFREQ)] = "VIDIOCSFREQ", | |
201 | [_IOC_NR(VIDIOCGAUDIO)] = "VIDIOCGAUDIO", | |
202 | [_IOC_NR(VIDIOCSAUDIO)] = "VIDIOCSAUDIO", | |
203 | [_IOC_NR(VIDIOCSYNC)] = "VIDIOCSYNC", | |
204 | [_IOC_NR(VIDIOCMCAPTURE)] = "VIDIOCMCAPTURE", | |
205 | [_IOC_NR(VIDIOCGMBUF)] = "VIDIOCGMBUF", | |
206 | [_IOC_NR(VIDIOCGUNIT)] = "VIDIOCGUNIT", | |
207 | [_IOC_NR(VIDIOCGCAPTURE)] = "VIDIOCGCAPTURE", | |
208 | [_IOC_NR(VIDIOCSCAPTURE)] = "VIDIOCSCAPTURE", | |
209 | [_IOC_NR(VIDIOCSPLAYMODE)] = "VIDIOCSPLAYMODE", | |
210 | [_IOC_NR(VIDIOCSWRITEMODE)] = "VIDIOCSWRITEMODE", | |
211 | [_IOC_NR(VIDIOCGPLAYINFO)] = "VIDIOCGPLAYINFO", | |
212 | [_IOC_NR(VIDIOCSMICROCODE)] = "VIDIOCSMICROCODE", | |
213 | [_IOC_NR(VIDIOCGVBIFMT)] = "VIDIOCGVBIFMT", | |
214 | [_IOC_NR(VIDIOCSVBIFMT)] = "VIDIOCSVBIFMT" | |
215 | }; | |
216 | #define V4L1_IOCTLS ARRAY_SIZE(v4l1_ioctls) | |
217 | #endif | |
218 | ||
219 | static const char *v4l2_ioctls[] = { | |
220 | [_IOC_NR(VIDIOC_QUERYCAP)] = "VIDIOC_QUERYCAP", | |
221 | [_IOC_NR(VIDIOC_RESERVED)] = "VIDIOC_RESERVED", | |
222 | [_IOC_NR(VIDIOC_ENUM_FMT)] = "VIDIOC_ENUM_FMT", | |
223 | [_IOC_NR(VIDIOC_G_FMT)] = "VIDIOC_G_FMT", | |
224 | [_IOC_NR(VIDIOC_S_FMT)] = "VIDIOC_S_FMT", | |
225 | [_IOC_NR(VIDIOC_REQBUFS)] = "VIDIOC_REQBUFS", | |
226 | [_IOC_NR(VIDIOC_QUERYBUF)] = "VIDIOC_QUERYBUF", | |
227 | [_IOC_NR(VIDIOC_G_FBUF)] = "VIDIOC_G_FBUF", | |
228 | [_IOC_NR(VIDIOC_S_FBUF)] = "VIDIOC_S_FBUF", | |
229 | [_IOC_NR(VIDIOC_OVERLAY)] = "VIDIOC_OVERLAY", | |
230 | [_IOC_NR(VIDIOC_QBUF)] = "VIDIOC_QBUF", | |
231 | [_IOC_NR(VIDIOC_DQBUF)] = "VIDIOC_DQBUF", | |
232 | [_IOC_NR(VIDIOC_STREAMON)] = "VIDIOC_STREAMON", | |
233 | [_IOC_NR(VIDIOC_STREAMOFF)] = "VIDIOC_STREAMOFF", | |
234 | [_IOC_NR(VIDIOC_G_PARM)] = "VIDIOC_G_PARM", | |
235 | [_IOC_NR(VIDIOC_S_PARM)] = "VIDIOC_S_PARM", | |
236 | [_IOC_NR(VIDIOC_G_STD)] = "VIDIOC_G_STD", | |
237 | [_IOC_NR(VIDIOC_S_STD)] = "VIDIOC_S_STD", | |
238 | [_IOC_NR(VIDIOC_ENUMSTD)] = "VIDIOC_ENUMSTD", | |
239 | [_IOC_NR(VIDIOC_ENUMINPUT)] = "VIDIOC_ENUMINPUT", | |
240 | [_IOC_NR(VIDIOC_G_CTRL)] = "VIDIOC_G_CTRL", | |
241 | [_IOC_NR(VIDIOC_S_CTRL)] = "VIDIOC_S_CTRL", | |
242 | [_IOC_NR(VIDIOC_G_TUNER)] = "VIDIOC_G_TUNER", | |
243 | [_IOC_NR(VIDIOC_S_TUNER)] = "VIDIOC_S_TUNER", | |
244 | [_IOC_NR(VIDIOC_G_AUDIO)] = "VIDIOC_G_AUDIO", | |
245 | [_IOC_NR(VIDIOC_S_AUDIO)] = "VIDIOC_S_AUDIO", | |
246 | [_IOC_NR(VIDIOC_QUERYCTRL)] = "VIDIOC_QUERYCTRL", | |
247 | [_IOC_NR(VIDIOC_QUERYMENU)] = "VIDIOC_QUERYMENU", | |
248 | [_IOC_NR(VIDIOC_G_INPUT)] = "VIDIOC_G_INPUT", | |
249 | [_IOC_NR(VIDIOC_S_INPUT)] = "VIDIOC_S_INPUT", | |
250 | [_IOC_NR(VIDIOC_G_OUTPUT)] = "VIDIOC_G_OUTPUT", | |
251 | [_IOC_NR(VIDIOC_S_OUTPUT)] = "VIDIOC_S_OUTPUT", | |
252 | [_IOC_NR(VIDIOC_ENUMOUTPUT)] = "VIDIOC_ENUMOUTPUT", | |
253 | [_IOC_NR(VIDIOC_G_AUDOUT)] = "VIDIOC_G_AUDOUT", | |
254 | [_IOC_NR(VIDIOC_S_AUDOUT)] = "VIDIOC_S_AUDOUT", | |
255 | [_IOC_NR(VIDIOC_G_MODULATOR)] = "VIDIOC_G_MODULATOR", | |
256 | [_IOC_NR(VIDIOC_S_MODULATOR)] = "VIDIOC_S_MODULATOR", | |
257 | [_IOC_NR(VIDIOC_G_FREQUENCY)] = "VIDIOC_G_FREQUENCY", | |
258 | [_IOC_NR(VIDIOC_S_FREQUENCY)] = "VIDIOC_S_FREQUENCY", | |
259 | [_IOC_NR(VIDIOC_CROPCAP)] = "VIDIOC_CROPCAP", | |
260 | [_IOC_NR(VIDIOC_G_CROP)] = "VIDIOC_G_CROP", | |
261 | [_IOC_NR(VIDIOC_S_CROP)] = "VIDIOC_S_CROP", | |
262 | [_IOC_NR(VIDIOC_G_JPEGCOMP)] = "VIDIOC_G_JPEGCOMP", | |
263 | [_IOC_NR(VIDIOC_S_JPEGCOMP)] = "VIDIOC_S_JPEGCOMP", | |
264 | [_IOC_NR(VIDIOC_QUERYSTD)] = "VIDIOC_QUERYSTD", | |
265 | [_IOC_NR(VIDIOC_TRY_FMT)] = "VIDIOC_TRY_FMT", | |
266 | [_IOC_NR(VIDIOC_ENUMAUDIO)] = "VIDIOC_ENUMAUDIO", | |
267 | [_IOC_NR(VIDIOC_ENUMAUDOUT)] = "VIDIOC_ENUMAUDOUT", | |
268 | [_IOC_NR(VIDIOC_G_PRIORITY)] = "VIDIOC_G_PRIORITY", | |
269 | [_IOC_NR(VIDIOC_S_PRIORITY)] = "VIDIOC_S_PRIORITY", | |
270 | [_IOC_NR(VIDIOC_G_SLICED_VBI_CAP)] = "VIDIOC_G_SLICED_VBI_CAP", | |
271 | [_IOC_NR(VIDIOC_LOG_STATUS)] = "VIDIOC_LOG_STATUS", | |
272 | [_IOC_NR(VIDIOC_G_EXT_CTRLS)] = "VIDIOC_G_EXT_CTRLS", | |
273 | [_IOC_NR(VIDIOC_S_EXT_CTRLS)] = "VIDIOC_S_EXT_CTRLS", | |
274 | [_IOC_NR(VIDIOC_TRY_EXT_CTRLS)] = "VIDIOC_TRY_EXT_CTRLS", | |
275 | #if 1 | |
276 | [_IOC_NR(VIDIOC_ENUM_FRAMESIZES)] = "VIDIOC_ENUM_FRAMESIZES", | |
277 | [_IOC_NR(VIDIOC_ENUM_FRAMEINTERVALS)] = "VIDIOC_ENUM_FRAMEINTERVALS", | |
278 | [_IOC_NR(VIDIOC_G_ENC_INDEX)] = "VIDIOC_G_ENC_INDEX", | |
279 | [_IOC_NR(VIDIOC_ENCODER_CMD)] = "VIDIOC_ENCODER_CMD", | |
280 | [_IOC_NR(VIDIOC_TRY_ENCODER_CMD)] = "VIDIOC_TRY_ENCODER_CMD", | |
281 | ||
282 | [_IOC_NR(VIDIOC_DBG_S_REGISTER)] = "VIDIOC_DBG_S_REGISTER", | |
283 | [_IOC_NR(VIDIOC_DBG_G_REGISTER)] = "VIDIOC_DBG_G_REGISTER", | |
284 | ||
aecde8b5 | 285 | [_IOC_NR(VIDIOC_DBG_G_CHIP_IDENT)] = "VIDIOC_DBG_G_CHIP_IDENT", |
35ea11ff HV |
286 | [_IOC_NR(VIDIOC_S_HW_FREQ_SEEK)] = "VIDIOC_S_HW_FREQ_SEEK", |
287 | #endif | |
b6456c0c MK |
288 | [_IOC_NR(VIDIOC_ENUM_DV_PRESETS)] = "VIDIOC_ENUM_DV_PRESETS", |
289 | [_IOC_NR(VIDIOC_S_DV_PRESET)] = "VIDIOC_S_DV_PRESET", | |
290 | [_IOC_NR(VIDIOC_G_DV_PRESET)] = "VIDIOC_G_DV_PRESET", | |
291 | [_IOC_NR(VIDIOC_QUERY_DV_PRESET)] = "VIDIOC_QUERY_DV_PRESET", | |
292 | [_IOC_NR(VIDIOC_S_DV_TIMINGS)] = "VIDIOC_S_DV_TIMINGS", | |
293 | [_IOC_NR(VIDIOC_G_DV_TIMINGS)] = "VIDIOC_G_DV_TIMINGS", | |
35ea11ff HV |
294 | }; |
295 | #define V4L2_IOCTLS ARRAY_SIZE(v4l2_ioctls) | |
296 | ||
35ea11ff HV |
297 | /* Common ioctl debug function. This function can be used by |
298 | external ioctl messages as well as internal V4L ioctl */ | |
299 | void v4l_printk_ioctl(unsigned int cmd) | |
300 | { | |
301 | char *dir, *type; | |
302 | ||
303 | switch (_IOC_TYPE(cmd)) { | |
304 | case 'd': | |
78a3b4db HV |
305 | type = "v4l2_int"; |
306 | break; | |
35ea11ff HV |
307 | #ifdef CONFIG_VIDEO_V4L1_COMPAT |
308 | case 'v': | |
309 | if (_IOC_NR(cmd) >= V4L1_IOCTLS) { | |
310 | type = "v4l1"; | |
311 | break; | |
312 | } | |
313 | printk("%s", v4l1_ioctls[_IOC_NR(cmd)]); | |
314 | return; | |
315 | #endif | |
316 | case 'V': | |
317 | if (_IOC_NR(cmd) >= V4L2_IOCTLS) { | |
318 | type = "v4l2"; | |
319 | break; | |
320 | } | |
321 | printk("%s", v4l2_ioctls[_IOC_NR(cmd)]); | |
322 | return; | |
323 | default: | |
324 | type = "unknown"; | |
325 | } | |
326 | ||
327 | switch (_IOC_DIR(cmd)) { | |
328 | case _IOC_NONE: dir = "--"; break; | |
329 | case _IOC_READ: dir = "r-"; break; | |
330 | case _IOC_WRITE: dir = "-w"; break; | |
331 | case _IOC_READ | _IOC_WRITE: dir = "rw"; break; | |
332 | default: dir = "*ERR*"; break; | |
333 | } | |
334 | printk("%s ioctl '%c', dir=%s, #%d (0x%08x)", | |
335 | type, _IOC_TYPE(cmd), dir, _IOC_NR(cmd), cmd); | |
336 | } | |
337 | EXPORT_SYMBOL(v4l_printk_ioctl); | |
338 | ||
339 | /* | |
340 | * helper function -- handles userspace copying for ioctl arguments | |
341 | */ | |
342 | ||
343 | #ifdef __OLD_VIDIOC_ | |
344 | static unsigned int | |
345 | video_fix_command(unsigned int cmd) | |
346 | { | |
347 | switch (cmd) { | |
348 | case VIDIOC_OVERLAY_OLD: | |
349 | cmd = VIDIOC_OVERLAY; | |
350 | break; | |
351 | case VIDIOC_S_PARM_OLD: | |
352 | cmd = VIDIOC_S_PARM; | |
353 | break; | |
354 | case VIDIOC_S_CTRL_OLD: | |
355 | cmd = VIDIOC_S_CTRL; | |
356 | break; | |
357 | case VIDIOC_G_AUDIO_OLD: | |
358 | cmd = VIDIOC_G_AUDIO; | |
359 | break; | |
360 | case VIDIOC_G_AUDOUT_OLD: | |
361 | cmd = VIDIOC_G_AUDOUT; | |
362 | break; | |
363 | case VIDIOC_CROPCAP_OLD: | |
364 | cmd = VIDIOC_CROPCAP; | |
365 | break; | |
366 | } | |
367 | return cmd; | |
368 | } | |
369 | #endif | |
370 | ||
371 | /* | |
372 | * Obsolete usercopy function - Should be removed soon | |
373 | */ | |
069b7479 | 374 | long |
f473bf76 HV |
375 | video_usercopy(struct file *file, unsigned int cmd, unsigned long arg, |
376 | v4l2_kioctl func) | |
35ea11ff HV |
377 | { |
378 | char sbuf[128]; | |
379 | void *mbuf = NULL; | |
380 | void *parg = NULL; | |
069b7479 | 381 | long err = -EINVAL; |
35ea11ff HV |
382 | int is_ext_ctrl; |
383 | size_t ctrls_size = 0; | |
384 | void __user *user_ptr = NULL; | |
385 | ||
386 | #ifdef __OLD_VIDIOC_ | |
387 | cmd = video_fix_command(cmd); | |
388 | #endif | |
389 | is_ext_ctrl = (cmd == VIDIOC_S_EXT_CTRLS || cmd == VIDIOC_G_EXT_CTRLS || | |
390 | cmd == VIDIOC_TRY_EXT_CTRLS); | |
391 | ||
392 | /* Copy arguments into temp kernel buffer */ | |
393 | switch (_IOC_DIR(cmd)) { | |
394 | case _IOC_NONE: | |
395 | parg = NULL; | |
396 | break; | |
397 | case _IOC_READ: | |
398 | case _IOC_WRITE: | |
399 | case (_IOC_WRITE | _IOC_READ): | |
400 | if (_IOC_SIZE(cmd) <= sizeof(sbuf)) { | |
401 | parg = sbuf; | |
402 | } else { | |
403 | /* too big to allocate from stack */ | |
404 | mbuf = kmalloc(_IOC_SIZE(cmd), GFP_KERNEL); | |
405 | if (NULL == mbuf) | |
406 | return -ENOMEM; | |
407 | parg = mbuf; | |
408 | } | |
409 | ||
410 | err = -EFAULT; | |
411 | if (_IOC_DIR(cmd) & _IOC_WRITE) | |
412 | if (copy_from_user(parg, (void __user *)arg, _IOC_SIZE(cmd))) | |
413 | goto out; | |
414 | break; | |
415 | } | |
416 | if (is_ext_ctrl) { | |
417 | struct v4l2_ext_controls *p = parg; | |
418 | ||
419 | /* In case of an error, tell the caller that it wasn't | |
420 | a specific control that caused it. */ | |
421 | p->error_idx = p->count; | |
422 | user_ptr = (void __user *)p->controls; | |
423 | if (p->count) { | |
424 | ctrls_size = sizeof(struct v4l2_ext_control) * p->count; | |
425 | /* Note: v4l2_ext_controls fits in sbuf[] so mbuf is still NULL. */ | |
426 | mbuf = kmalloc(ctrls_size, GFP_KERNEL); | |
427 | err = -ENOMEM; | |
428 | if (NULL == mbuf) | |
429 | goto out_ext_ctrl; | |
430 | err = -EFAULT; | |
431 | if (copy_from_user(mbuf, user_ptr, ctrls_size)) | |
432 | goto out_ext_ctrl; | |
433 | p->controls = mbuf; | |
434 | } | |
435 | } | |
436 | ||
437 | /* call driver */ | |
f473bf76 | 438 | err = func(file, cmd, parg); |
35ea11ff HV |
439 | if (err == -ENOIOCTLCMD) |
440 | err = -EINVAL; | |
441 | if (is_ext_ctrl) { | |
442 | struct v4l2_ext_controls *p = parg; | |
443 | ||
444 | p->controls = (void *)user_ptr; | |
445 | if (p->count && err == 0 && copy_to_user(user_ptr, mbuf, ctrls_size)) | |
446 | err = -EFAULT; | |
447 | goto out_ext_ctrl; | |
448 | } | |
449 | if (err < 0) | |
450 | goto out; | |
451 | ||
452 | out_ext_ctrl: | |
453 | /* Copy results into user buffer */ | |
454 | switch (_IOC_DIR(cmd)) { | |
455 | case _IOC_READ: | |
456 | case (_IOC_WRITE | _IOC_READ): | |
457 | if (copy_to_user((void __user *)arg, parg, _IOC_SIZE(cmd))) | |
458 | err = -EFAULT; | |
459 | break; | |
460 | } | |
461 | ||
462 | out: | |
463 | kfree(mbuf); | |
464 | return err; | |
465 | } | |
466 | EXPORT_SYMBOL(video_usercopy); | |
467 | ||
468 | static void dbgbuf(unsigned int cmd, struct video_device *vfd, | |
469 | struct v4l2_buffer *p) | |
470 | { | |
471 | struct v4l2_timecode *tc = &p->timecode; | |
472 | ||
473 | dbgarg(cmd, "%02ld:%02d:%02d.%08ld index=%d, type=%s, " | |
474 | "bytesused=%d, flags=0x%08d, " | |
475 | "field=%0d, sequence=%d, memory=%s, offset/userptr=0x%08lx, length=%d\n", | |
476 | p->timestamp.tv_sec / 3600, | |
477 | (int)(p->timestamp.tv_sec / 60) % 60, | |
478 | (int)(p->timestamp.tv_sec % 60), | |
b045979d | 479 | (long)p->timestamp.tv_usec, |
35ea11ff HV |
480 | p->index, |
481 | prt_names(p->type, v4l2_type_names), | |
482 | p->bytesused, p->flags, | |
483 | p->field, p->sequence, | |
484 | prt_names(p->memory, v4l2_memory_names), | |
485 | p->m.userptr, p->length); | |
486 | dbgarg2("timecode=%02d:%02d:%02d type=%d, " | |
487 | "flags=0x%08d, frames=%d, userbits=0x%08x\n", | |
488 | tc->hours, tc->minutes, tc->seconds, | |
489 | tc->type, tc->flags, tc->frames, *(__u32 *)tc->userbits); | |
490 | } | |
491 | ||
492 | static inline void dbgrect(struct video_device *vfd, char *s, | |
493 | struct v4l2_rect *r) | |
494 | { | |
495 | dbgarg2("%sRect start at %dx%d, size=%dx%d\n", s, r->left, r->top, | |
496 | r->width, r->height); | |
497 | }; | |
498 | ||
499 | static inline void v4l_print_pix_fmt(struct video_device *vfd, | |
500 | struct v4l2_pix_format *fmt) | |
501 | { | |
502 | dbgarg2("width=%d, height=%d, format=%c%c%c%c, field=%s, " | |
503 | "bytesperline=%d sizeimage=%d, colorspace=%d\n", | |
504 | fmt->width, fmt->height, | |
505 | (fmt->pixelformat & 0xff), | |
506 | (fmt->pixelformat >> 8) & 0xff, | |
507 | (fmt->pixelformat >> 16) & 0xff, | |
508 | (fmt->pixelformat >> 24) & 0xff, | |
509 | prt_names(fmt->field, v4l2_field_names), | |
510 | fmt->bytesperline, fmt->sizeimage, fmt->colorspace); | |
511 | }; | |
512 | ||
513 | static inline void v4l_print_ext_ctrls(unsigned int cmd, | |
514 | struct video_device *vfd, struct v4l2_ext_controls *c, int show_vals) | |
515 | { | |
516 | __u32 i; | |
517 | ||
518 | if (!(vfd->debug & V4L2_DEBUG_IOCTL_ARG)) | |
519 | return; | |
520 | dbgarg(cmd, ""); | |
521 | printk(KERN_CONT "class=0x%x", c->ctrl_class); | |
522 | for (i = 0; i < c->count; i++) { | |
6b5a9492 | 523 | if (show_vals && !c->controls[i].size) |
35ea11ff HV |
524 | printk(KERN_CONT " id/val=0x%x/0x%x", |
525 | c->controls[i].id, c->controls[i].value); | |
526 | else | |
6b5a9492 HV |
527 | printk(KERN_CONT " id=0x%x,size=%u", |
528 | c->controls[i].id, c->controls[i].size); | |
35ea11ff HV |
529 | } |
530 | printk(KERN_CONT "\n"); | |
531 | }; | |
532 | ||
533 | static inline int check_ext_ctrls(struct v4l2_ext_controls *c, int allow_priv) | |
534 | { | |
535 | __u32 i; | |
536 | ||
537 | /* zero the reserved fields */ | |
538 | c->reserved[0] = c->reserved[1] = 0; | |
6b5a9492 | 539 | for (i = 0; i < c->count; i++) |
35ea11ff | 540 | c->controls[i].reserved2[0] = 0; |
6b5a9492 | 541 | |
35ea11ff HV |
542 | /* V4L2_CID_PRIVATE_BASE cannot be used as control class |
543 | when using extended controls. | |
544 | Only when passed in through VIDIOC_G_CTRL and VIDIOC_S_CTRL | |
545 | is it allowed for backwards compatibility. | |
546 | */ | |
547 | if (!allow_priv && c->ctrl_class == V4L2_CID_PRIVATE_BASE) | |
548 | return 0; | |
549 | /* Check that all controls are from the same control class. */ | |
550 | for (i = 0; i < c->count; i++) { | |
551 | if (V4L2_CTRL_ID2CLASS(c->controls[i].id) != c->ctrl_class) { | |
552 | c->error_idx = i; | |
553 | return 0; | |
554 | } | |
555 | } | |
556 | return 1; | |
557 | } | |
558 | ||
a399810c | 559 | static int check_fmt(const struct v4l2_ioctl_ops *ops, enum v4l2_buf_type type) |
35ea11ff | 560 | { |
a399810c HV |
561 | if (ops == NULL) |
562 | return -EINVAL; | |
563 | ||
35ea11ff HV |
564 | switch (type) { |
565 | case V4L2_BUF_TYPE_VIDEO_CAPTURE: | |
1175d613 | 566 | if (ops->vidioc_g_fmt_vid_cap) |
35ea11ff HV |
567 | return 0; |
568 | break; | |
569 | case V4L2_BUF_TYPE_VIDEO_OVERLAY: | |
1175d613 | 570 | if (ops->vidioc_g_fmt_vid_overlay) |
35ea11ff HV |
571 | return 0; |
572 | break; | |
573 | case V4L2_BUF_TYPE_VIDEO_OUTPUT: | |
1175d613 | 574 | if (ops->vidioc_g_fmt_vid_out) |
35ea11ff HV |
575 | return 0; |
576 | break; | |
577 | case V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY: | |
1175d613 | 578 | if (ops->vidioc_g_fmt_vid_out_overlay) |
35ea11ff HV |
579 | return 0; |
580 | break; | |
581 | case V4L2_BUF_TYPE_VBI_CAPTURE: | |
1175d613 | 582 | if (ops->vidioc_g_fmt_vbi_cap) |
35ea11ff HV |
583 | return 0; |
584 | break; | |
585 | case V4L2_BUF_TYPE_VBI_OUTPUT: | |
1175d613 | 586 | if (ops->vidioc_g_fmt_vbi_out) |
35ea11ff HV |
587 | return 0; |
588 | break; | |
589 | case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE: | |
1175d613 | 590 | if (ops->vidioc_g_fmt_sliced_vbi_cap) |
35ea11ff HV |
591 | return 0; |
592 | break; | |
593 | case V4L2_BUF_TYPE_SLICED_VBI_OUTPUT: | |
1175d613 | 594 | if (ops->vidioc_g_fmt_sliced_vbi_out) |
35ea11ff HV |
595 | return 0; |
596 | break; | |
597 | case V4L2_BUF_TYPE_PRIVATE: | |
1175d613 | 598 | if (ops->vidioc_g_fmt_type_private) |
35ea11ff HV |
599 | return 0; |
600 | break; | |
601 | } | |
602 | return -EINVAL; | |
603 | } | |
604 | ||
069b7479 | 605 | static long __video_do_ioctl(struct file *file, |
35ea11ff HV |
606 | unsigned int cmd, void *arg) |
607 | { | |
608 | struct video_device *vfd = video_devdata(file); | |
a399810c | 609 | const struct v4l2_ioctl_ops *ops = vfd->ioctl_ops; |
d5fbf32f | 610 | void *fh = file->private_data; |
069b7479 | 611 | long ret = -EINVAL; |
35ea11ff HV |
612 | |
613 | if ((vfd->debug & V4L2_DEBUG_IOCTL) && | |
614 | !(vfd->debug & V4L2_DEBUG_IOCTL_ARG)) { | |
615 | v4l_print_ioctl(vfd->name, cmd); | |
616 | printk(KERN_CONT "\n"); | |
617 | } | |
618 | ||
a399810c HV |
619 | if (ops == NULL) { |
620 | printk(KERN_WARNING "videodev: \"%s\" has no ioctl_ops.\n", | |
621 | vfd->name); | |
622 | return -EINVAL; | |
623 | } | |
624 | ||
35ea11ff HV |
625 | #ifdef CONFIG_VIDEO_V4L1_COMPAT |
626 | /*********************************************************** | |
627 | Handles calls to the obsoleted V4L1 API | |
628 | Due to the nature of VIDIOCGMBUF, each driver that supports | |
629 | V4L1 should implement its own handler for this ioctl. | |
630 | ***********************************************************/ | |
631 | ||
632 | /* --- streaming capture ------------------------------------- */ | |
633 | if (cmd == VIDIOCGMBUF) { | |
634 | struct video_mbuf *p = arg; | |
635 | ||
a399810c | 636 | if (!ops->vidiocgmbuf) |
35ea11ff | 637 | return ret; |
a399810c | 638 | ret = ops->vidiocgmbuf(file, fh, p); |
35ea11ff HV |
639 | if (!ret) |
640 | dbgarg(cmd, "size=%d, frames=%d, offsets=0x%08lx\n", | |
641 | p->size, p->frames, | |
642 | (unsigned long)p->offsets); | |
643 | return ret; | |
644 | } | |
645 | ||
646 | /******************************************************** | |
647 | All other V4L1 calls are handled by v4l1_compat module. | |
648 | Those calls will be translated into V4L2 calls, and | |
649 | __video_do_ioctl will be called again, with one or more | |
650 | V4L2 ioctls. | |
651 | ********************************************************/ | |
888fe747 | 652 | if (_IOC_TYPE(cmd) == 'v' && _IOC_NR(cmd) < BASE_VIDIOCPRIVATE) |
b1f88407 | 653 | return v4l_compat_translate_ioctl(file, cmd, arg, |
35ea11ff HV |
654 | __video_do_ioctl); |
655 | #endif | |
656 | ||
657 | switch (cmd) { | |
658 | /* --- capabilities ------------------------------------------ */ | |
659 | case VIDIOC_QUERYCAP: | |
660 | { | |
661 | struct v4l2_capability *cap = (struct v4l2_capability *)arg; | |
35ea11ff | 662 | |
a399810c | 663 | if (!ops->vidioc_querycap) |
35ea11ff HV |
664 | break; |
665 | ||
a399810c | 666 | ret = ops->vidioc_querycap(file, fh, cap); |
35ea11ff HV |
667 | if (!ret) |
668 | dbgarg(cmd, "driver=%s, card=%s, bus=%s, " | |
669 | "version=0x%08x, " | |
670 | "capabilities=0x%08x\n", | |
671 | cap->driver, cap->card, cap->bus_info, | |
672 | cap->version, | |
673 | cap->capabilities); | |
674 | break; | |
675 | } | |
676 | ||
677 | /* --- priority ------------------------------------------ */ | |
678 | case VIDIOC_G_PRIORITY: | |
679 | { | |
680 | enum v4l2_priority *p = arg; | |
681 | ||
a399810c | 682 | if (!ops->vidioc_g_priority) |
35ea11ff | 683 | break; |
a399810c | 684 | ret = ops->vidioc_g_priority(file, fh, p); |
35ea11ff HV |
685 | if (!ret) |
686 | dbgarg(cmd, "priority is %d\n", *p); | |
687 | break; | |
688 | } | |
689 | case VIDIOC_S_PRIORITY: | |
690 | { | |
691 | enum v4l2_priority *p = arg; | |
692 | ||
a399810c | 693 | if (!ops->vidioc_s_priority) |
35ea11ff HV |
694 | break; |
695 | dbgarg(cmd, "setting priority to %d\n", *p); | |
a399810c | 696 | ret = ops->vidioc_s_priority(file, fh, *p); |
35ea11ff HV |
697 | break; |
698 | } | |
699 | ||
700 | /* --- capture ioctls ---------------------------------------- */ | |
701 | case VIDIOC_ENUM_FMT: | |
702 | { | |
703 | struct v4l2_fmtdesc *f = arg; | |
35ea11ff | 704 | |
19c96e4b | 705 | switch (f->type) { |
35ea11ff | 706 | case V4L2_BUF_TYPE_VIDEO_CAPTURE: |
a399810c HV |
707 | if (ops->vidioc_enum_fmt_vid_cap) |
708 | ret = ops->vidioc_enum_fmt_vid_cap(file, fh, f); | |
35ea11ff HV |
709 | break; |
710 | case V4L2_BUF_TYPE_VIDEO_OVERLAY: | |
a399810c HV |
711 | if (ops->vidioc_enum_fmt_vid_overlay) |
712 | ret = ops->vidioc_enum_fmt_vid_overlay(file, | |
35ea11ff HV |
713 | fh, f); |
714 | break; | |
35ea11ff | 715 | case V4L2_BUF_TYPE_VIDEO_OUTPUT: |
a399810c HV |
716 | if (ops->vidioc_enum_fmt_vid_out) |
717 | ret = ops->vidioc_enum_fmt_vid_out(file, fh, f); | |
35ea11ff HV |
718 | break; |
719 | case V4L2_BUF_TYPE_PRIVATE: | |
a399810c HV |
720 | if (ops->vidioc_enum_fmt_type_private) |
721 | ret = ops->vidioc_enum_fmt_type_private(file, | |
35ea11ff HV |
722 | fh, f); |
723 | break; | |
724 | default: | |
725 | break; | |
726 | } | |
727 | if (!ret) | |
728 | dbgarg(cmd, "index=%d, type=%d, flags=%d, " | |
729 | "pixelformat=%c%c%c%c, description='%s'\n", | |
730 | f->index, f->type, f->flags, | |
731 | (f->pixelformat & 0xff), | |
732 | (f->pixelformat >> 8) & 0xff, | |
733 | (f->pixelformat >> 16) & 0xff, | |
734 | (f->pixelformat >> 24) & 0xff, | |
735 | f->description); | |
736 | break; | |
737 | } | |
738 | case VIDIOC_G_FMT: | |
739 | { | |
740 | struct v4l2_format *f = (struct v4l2_format *)arg; | |
741 | ||
35ea11ff HV |
742 | /* FIXME: Should be one dump per type */ |
743 | dbgarg(cmd, "type=%s\n", prt_names(f->type, v4l2_type_names)); | |
744 | ||
745 | switch (f->type) { | |
746 | case V4L2_BUF_TYPE_VIDEO_CAPTURE: | |
a399810c HV |
747 | if (ops->vidioc_g_fmt_vid_cap) |
748 | ret = ops->vidioc_g_fmt_vid_cap(file, fh, f); | |
35ea11ff HV |
749 | if (!ret) |
750 | v4l_print_pix_fmt(vfd, &f->fmt.pix); | |
751 | break; | |
752 | case V4L2_BUF_TYPE_VIDEO_OVERLAY: | |
a399810c HV |
753 | if (ops->vidioc_g_fmt_vid_overlay) |
754 | ret = ops->vidioc_g_fmt_vid_overlay(file, | |
35ea11ff HV |
755 | fh, f); |
756 | break; | |
757 | case V4L2_BUF_TYPE_VIDEO_OUTPUT: | |
a399810c HV |
758 | if (ops->vidioc_g_fmt_vid_out) |
759 | ret = ops->vidioc_g_fmt_vid_out(file, fh, f); | |
35ea11ff HV |
760 | if (!ret) |
761 | v4l_print_pix_fmt(vfd, &f->fmt.pix); | |
762 | break; | |
763 | case V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY: | |
a399810c HV |
764 | if (ops->vidioc_g_fmt_vid_out_overlay) |
765 | ret = ops->vidioc_g_fmt_vid_out_overlay(file, | |
35ea11ff HV |
766 | fh, f); |
767 | break; | |
768 | case V4L2_BUF_TYPE_VBI_CAPTURE: | |
a399810c HV |
769 | if (ops->vidioc_g_fmt_vbi_cap) |
770 | ret = ops->vidioc_g_fmt_vbi_cap(file, fh, f); | |
35ea11ff HV |
771 | break; |
772 | case V4L2_BUF_TYPE_VBI_OUTPUT: | |
a399810c HV |
773 | if (ops->vidioc_g_fmt_vbi_out) |
774 | ret = ops->vidioc_g_fmt_vbi_out(file, fh, f); | |
35ea11ff HV |
775 | break; |
776 | case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE: | |
a399810c HV |
777 | if (ops->vidioc_g_fmt_sliced_vbi_cap) |
778 | ret = ops->vidioc_g_fmt_sliced_vbi_cap(file, | |
35ea11ff HV |
779 | fh, f); |
780 | break; | |
781 | case V4L2_BUF_TYPE_SLICED_VBI_OUTPUT: | |
a399810c HV |
782 | if (ops->vidioc_g_fmt_sliced_vbi_out) |
783 | ret = ops->vidioc_g_fmt_sliced_vbi_out(file, | |
35ea11ff HV |
784 | fh, f); |
785 | break; | |
786 | case V4L2_BUF_TYPE_PRIVATE: | |
a399810c HV |
787 | if (ops->vidioc_g_fmt_type_private) |
788 | ret = ops->vidioc_g_fmt_type_private(file, | |
35ea11ff HV |
789 | fh, f); |
790 | break; | |
791 | } | |
792 | ||
793 | break; | |
794 | } | |
795 | case VIDIOC_S_FMT: | |
796 | { | |
797 | struct v4l2_format *f = (struct v4l2_format *)arg; | |
798 | ||
799 | /* FIXME: Should be one dump per type */ | |
800 | dbgarg(cmd, "type=%s\n", prt_names(f->type, v4l2_type_names)); | |
801 | ||
802 | switch (f->type) { | |
803 | case V4L2_BUF_TYPE_VIDEO_CAPTURE: | |
7ecc0cf9 | 804 | CLEAR_AFTER_FIELD(f, fmt.pix); |
35ea11ff | 805 | v4l_print_pix_fmt(vfd, &f->fmt.pix); |
a399810c HV |
806 | if (ops->vidioc_s_fmt_vid_cap) |
807 | ret = ops->vidioc_s_fmt_vid_cap(file, fh, f); | |
35ea11ff HV |
808 | break; |
809 | case V4L2_BUF_TYPE_VIDEO_OVERLAY: | |
7ecc0cf9 | 810 | CLEAR_AFTER_FIELD(f, fmt.win); |
a399810c HV |
811 | if (ops->vidioc_s_fmt_vid_overlay) |
812 | ret = ops->vidioc_s_fmt_vid_overlay(file, | |
35ea11ff HV |
813 | fh, f); |
814 | break; | |
815 | case V4L2_BUF_TYPE_VIDEO_OUTPUT: | |
7ecc0cf9 | 816 | CLEAR_AFTER_FIELD(f, fmt.pix); |
35ea11ff | 817 | v4l_print_pix_fmt(vfd, &f->fmt.pix); |
a399810c HV |
818 | if (ops->vidioc_s_fmt_vid_out) |
819 | ret = ops->vidioc_s_fmt_vid_out(file, fh, f); | |
35ea11ff HV |
820 | break; |
821 | case V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY: | |
7ecc0cf9 | 822 | CLEAR_AFTER_FIELD(f, fmt.win); |
a399810c HV |
823 | if (ops->vidioc_s_fmt_vid_out_overlay) |
824 | ret = ops->vidioc_s_fmt_vid_out_overlay(file, | |
35ea11ff HV |
825 | fh, f); |
826 | break; | |
827 | case V4L2_BUF_TYPE_VBI_CAPTURE: | |
7ecc0cf9 | 828 | CLEAR_AFTER_FIELD(f, fmt.vbi); |
a399810c HV |
829 | if (ops->vidioc_s_fmt_vbi_cap) |
830 | ret = ops->vidioc_s_fmt_vbi_cap(file, fh, f); | |
35ea11ff HV |
831 | break; |
832 | case V4L2_BUF_TYPE_VBI_OUTPUT: | |
7ecc0cf9 | 833 | CLEAR_AFTER_FIELD(f, fmt.vbi); |
a399810c HV |
834 | if (ops->vidioc_s_fmt_vbi_out) |
835 | ret = ops->vidioc_s_fmt_vbi_out(file, fh, f); | |
35ea11ff HV |
836 | break; |
837 | case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE: | |
7ecc0cf9 | 838 | CLEAR_AFTER_FIELD(f, fmt.sliced); |
a399810c HV |
839 | if (ops->vidioc_s_fmt_sliced_vbi_cap) |
840 | ret = ops->vidioc_s_fmt_sliced_vbi_cap(file, | |
35ea11ff HV |
841 | fh, f); |
842 | break; | |
843 | case V4L2_BUF_TYPE_SLICED_VBI_OUTPUT: | |
7ecc0cf9 | 844 | CLEAR_AFTER_FIELD(f, fmt.sliced); |
a399810c HV |
845 | if (ops->vidioc_s_fmt_sliced_vbi_out) |
846 | ret = ops->vidioc_s_fmt_sliced_vbi_out(file, | |
35ea11ff HV |
847 | fh, f); |
848 | break; | |
849 | case V4L2_BUF_TYPE_PRIVATE: | |
7ecc0cf9 | 850 | /* CLEAR_AFTER_FIELD(f, fmt.raw_data); <- does nothing */ |
a399810c HV |
851 | if (ops->vidioc_s_fmt_type_private) |
852 | ret = ops->vidioc_s_fmt_type_private(file, | |
35ea11ff HV |
853 | fh, f); |
854 | break; | |
855 | } | |
856 | break; | |
857 | } | |
858 | case VIDIOC_TRY_FMT: | |
859 | { | |
860 | struct v4l2_format *f = (struct v4l2_format *)arg; | |
861 | ||
862 | /* FIXME: Should be one dump per type */ | |
863 | dbgarg(cmd, "type=%s\n", prt_names(f->type, | |
864 | v4l2_type_names)); | |
865 | switch (f->type) { | |
866 | case V4L2_BUF_TYPE_VIDEO_CAPTURE: | |
7ecc0cf9 | 867 | CLEAR_AFTER_FIELD(f, fmt.pix); |
a399810c HV |
868 | if (ops->vidioc_try_fmt_vid_cap) |
869 | ret = ops->vidioc_try_fmt_vid_cap(file, fh, f); | |
35ea11ff HV |
870 | if (!ret) |
871 | v4l_print_pix_fmt(vfd, &f->fmt.pix); | |
872 | break; | |
873 | case V4L2_BUF_TYPE_VIDEO_OVERLAY: | |
7ecc0cf9 | 874 | CLEAR_AFTER_FIELD(f, fmt.win); |
a399810c HV |
875 | if (ops->vidioc_try_fmt_vid_overlay) |
876 | ret = ops->vidioc_try_fmt_vid_overlay(file, | |
35ea11ff HV |
877 | fh, f); |
878 | break; | |
879 | case V4L2_BUF_TYPE_VIDEO_OUTPUT: | |
7ecc0cf9 | 880 | CLEAR_AFTER_FIELD(f, fmt.pix); |
a399810c HV |
881 | if (ops->vidioc_try_fmt_vid_out) |
882 | ret = ops->vidioc_try_fmt_vid_out(file, fh, f); | |
35ea11ff HV |
883 | if (!ret) |
884 | v4l_print_pix_fmt(vfd, &f->fmt.pix); | |
885 | break; | |
886 | case V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY: | |
7ecc0cf9 | 887 | CLEAR_AFTER_FIELD(f, fmt.win); |
a399810c HV |
888 | if (ops->vidioc_try_fmt_vid_out_overlay) |
889 | ret = ops->vidioc_try_fmt_vid_out_overlay(file, | |
35ea11ff HV |
890 | fh, f); |
891 | break; | |
892 | case V4L2_BUF_TYPE_VBI_CAPTURE: | |
7ecc0cf9 | 893 | CLEAR_AFTER_FIELD(f, fmt.vbi); |
a399810c HV |
894 | if (ops->vidioc_try_fmt_vbi_cap) |
895 | ret = ops->vidioc_try_fmt_vbi_cap(file, fh, f); | |
35ea11ff HV |
896 | break; |
897 | case V4L2_BUF_TYPE_VBI_OUTPUT: | |
7ecc0cf9 | 898 | CLEAR_AFTER_FIELD(f, fmt.vbi); |
a399810c HV |
899 | if (ops->vidioc_try_fmt_vbi_out) |
900 | ret = ops->vidioc_try_fmt_vbi_out(file, fh, f); | |
35ea11ff HV |
901 | break; |
902 | case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE: | |
7ecc0cf9 | 903 | CLEAR_AFTER_FIELD(f, fmt.sliced); |
a399810c HV |
904 | if (ops->vidioc_try_fmt_sliced_vbi_cap) |
905 | ret = ops->vidioc_try_fmt_sliced_vbi_cap(file, | |
35ea11ff HV |
906 | fh, f); |
907 | break; | |
908 | case V4L2_BUF_TYPE_SLICED_VBI_OUTPUT: | |
7ecc0cf9 | 909 | CLEAR_AFTER_FIELD(f, fmt.sliced); |
a399810c HV |
910 | if (ops->vidioc_try_fmt_sliced_vbi_out) |
911 | ret = ops->vidioc_try_fmt_sliced_vbi_out(file, | |
35ea11ff HV |
912 | fh, f); |
913 | break; | |
914 | case V4L2_BUF_TYPE_PRIVATE: | |
7ecc0cf9 | 915 | /* CLEAR_AFTER_FIELD(f, fmt.raw_data); <- does nothing */ |
a399810c HV |
916 | if (ops->vidioc_try_fmt_type_private) |
917 | ret = ops->vidioc_try_fmt_type_private(file, | |
35ea11ff HV |
918 | fh, f); |
919 | break; | |
920 | } | |
921 | ||
922 | break; | |
923 | } | |
924 | /* FIXME: Those buf reqs could be handled here, | |
925 | with some changes on videobuf to allow its header to be included at | |
926 | videodev2.h or being merged at videodev2. | |
927 | */ | |
928 | case VIDIOC_REQBUFS: | |
929 | { | |
930 | struct v4l2_requestbuffers *p = arg; | |
931 | ||
a399810c | 932 | if (!ops->vidioc_reqbufs) |
35ea11ff | 933 | break; |
a399810c | 934 | ret = check_fmt(ops, p->type); |
35ea11ff HV |
935 | if (ret) |
936 | break; | |
937 | ||
7ecc0cf9 TP |
938 | if (p->type < V4L2_BUF_TYPE_PRIVATE) |
939 | CLEAR_AFTER_FIELD(p, memory); | |
940 | ||
a399810c | 941 | ret = ops->vidioc_reqbufs(file, fh, p); |
35ea11ff HV |
942 | dbgarg(cmd, "count=%d, type=%s, memory=%s\n", |
943 | p->count, | |
944 | prt_names(p->type, v4l2_type_names), | |
945 | prt_names(p->memory, v4l2_memory_names)); | |
946 | break; | |
947 | } | |
948 | case VIDIOC_QUERYBUF: | |
949 | { | |
950 | struct v4l2_buffer *p = arg; | |
951 | ||
a399810c | 952 | if (!ops->vidioc_querybuf) |
35ea11ff | 953 | break; |
a399810c | 954 | ret = check_fmt(ops, p->type); |
35ea11ff HV |
955 | if (ret) |
956 | break; | |
957 | ||
a399810c | 958 | ret = ops->vidioc_querybuf(file, fh, p); |
35ea11ff HV |
959 | if (!ret) |
960 | dbgbuf(cmd, vfd, p); | |
961 | break; | |
962 | } | |
963 | case VIDIOC_QBUF: | |
964 | { | |
965 | struct v4l2_buffer *p = arg; | |
966 | ||
a399810c | 967 | if (!ops->vidioc_qbuf) |
35ea11ff | 968 | break; |
a399810c | 969 | ret = check_fmt(ops, p->type); |
35ea11ff HV |
970 | if (ret) |
971 | break; | |
972 | ||
a399810c | 973 | ret = ops->vidioc_qbuf(file, fh, p); |
35ea11ff HV |
974 | if (!ret) |
975 | dbgbuf(cmd, vfd, p); | |
976 | break; | |
977 | } | |
978 | case VIDIOC_DQBUF: | |
979 | { | |
980 | struct v4l2_buffer *p = arg; | |
981 | ||
a399810c | 982 | if (!ops->vidioc_dqbuf) |
35ea11ff | 983 | break; |
a399810c | 984 | ret = check_fmt(ops, p->type); |
35ea11ff HV |
985 | if (ret) |
986 | break; | |
987 | ||
a399810c | 988 | ret = ops->vidioc_dqbuf(file, fh, p); |
35ea11ff HV |
989 | if (!ret) |
990 | dbgbuf(cmd, vfd, p); | |
991 | break; | |
992 | } | |
993 | case VIDIOC_OVERLAY: | |
994 | { | |
995 | int *i = arg; | |
996 | ||
a399810c | 997 | if (!ops->vidioc_overlay) |
35ea11ff HV |
998 | break; |
999 | dbgarg(cmd, "value=%d\n", *i); | |
a399810c | 1000 | ret = ops->vidioc_overlay(file, fh, *i); |
35ea11ff HV |
1001 | break; |
1002 | } | |
1003 | case VIDIOC_G_FBUF: | |
1004 | { | |
1005 | struct v4l2_framebuffer *p = arg; | |
1006 | ||
a399810c | 1007 | if (!ops->vidioc_g_fbuf) |
35ea11ff | 1008 | break; |
a399810c | 1009 | ret = ops->vidioc_g_fbuf(file, fh, arg); |
35ea11ff HV |
1010 | if (!ret) { |
1011 | dbgarg(cmd, "capability=0x%x, flags=%d, base=0x%08lx\n", | |
1012 | p->capability, p->flags, | |
1013 | (unsigned long)p->base); | |
1014 | v4l_print_pix_fmt(vfd, &p->fmt); | |
1015 | } | |
1016 | break; | |
1017 | } | |
1018 | case VIDIOC_S_FBUF: | |
1019 | { | |
1020 | struct v4l2_framebuffer *p = arg; | |
1021 | ||
a399810c | 1022 | if (!ops->vidioc_s_fbuf) |
35ea11ff HV |
1023 | break; |
1024 | dbgarg(cmd, "capability=0x%x, flags=%d, base=0x%08lx\n", | |
1025 | p->capability, p->flags, (unsigned long)p->base); | |
1026 | v4l_print_pix_fmt(vfd, &p->fmt); | |
a399810c | 1027 | ret = ops->vidioc_s_fbuf(file, fh, arg); |
35ea11ff HV |
1028 | break; |
1029 | } | |
1030 | case VIDIOC_STREAMON: | |
1031 | { | |
1032 | enum v4l2_buf_type i = *(int *)arg; | |
1033 | ||
a399810c | 1034 | if (!ops->vidioc_streamon) |
35ea11ff HV |
1035 | break; |
1036 | dbgarg(cmd, "type=%s\n", prt_names(i, v4l2_type_names)); | |
a399810c | 1037 | ret = ops->vidioc_streamon(file, fh, i); |
35ea11ff HV |
1038 | break; |
1039 | } | |
1040 | case VIDIOC_STREAMOFF: | |
1041 | { | |
1042 | enum v4l2_buf_type i = *(int *)arg; | |
1043 | ||
a399810c | 1044 | if (!ops->vidioc_streamoff) |
35ea11ff HV |
1045 | break; |
1046 | dbgarg(cmd, "type=%s\n", prt_names(i, v4l2_type_names)); | |
a399810c | 1047 | ret = ops->vidioc_streamoff(file, fh, i); |
35ea11ff HV |
1048 | break; |
1049 | } | |
1050 | /* ---------- tv norms ---------- */ | |
1051 | case VIDIOC_ENUMSTD: | |
1052 | { | |
1053 | struct v4l2_standard *p = arg; | |
1054 | v4l2_std_id id = vfd->tvnorms, curr_id = 0; | |
1055 | unsigned int index = p->index, i, j = 0; | |
1056 | const char *descr = ""; | |
1057 | ||
1058 | /* Return norm array in a canonical way */ | |
1059 | for (i = 0; i <= index && id; i++) { | |
1060 | /* last std value in the standards array is 0, so this | |
1061 | while always ends there since (id & 0) == 0. */ | |
1062 | while ((id & standards[j].std) != standards[j].std) | |
1063 | j++; | |
1064 | curr_id = standards[j].std; | |
1065 | descr = standards[j].descr; | |
1066 | j++; | |
1067 | if (curr_id == 0) | |
1068 | break; | |
1069 | if (curr_id != V4L2_STD_PAL && | |
1070 | curr_id != V4L2_STD_SECAM && | |
1071 | curr_id != V4L2_STD_NTSC) | |
1072 | id &= ~curr_id; | |
1073 | } | |
1074 | if (i <= index) | |
1075 | return -EINVAL; | |
1076 | ||
1077 | v4l2_video_std_construct(p, curr_id, descr); | |
35ea11ff HV |
1078 | |
1079 | dbgarg(cmd, "index=%d, id=0x%Lx, name=%s, fps=%d/%d, " | |
1080 | "framelines=%d\n", p->index, | |
1081 | (unsigned long long)p->id, p->name, | |
1082 | p->frameperiod.numerator, | |
1083 | p->frameperiod.denominator, | |
1084 | p->framelines); | |
1085 | ||
1086 | ret = 0; | |
1087 | break; | |
1088 | } | |
1089 | case VIDIOC_G_STD: | |
1090 | { | |
1091 | v4l2_std_id *id = arg; | |
1092 | ||
1093 | ret = 0; | |
1094 | /* Calls the specific handler */ | |
a399810c HV |
1095 | if (ops->vidioc_g_std) |
1096 | ret = ops->vidioc_g_std(file, fh, id); | |
9bedc7f7 | 1097 | else if (vfd->current_norm) |
35ea11ff | 1098 | *id = vfd->current_norm; |
9bedc7f7 HV |
1099 | else |
1100 | ret = -EINVAL; | |
35ea11ff HV |
1101 | |
1102 | if (!ret) | |
1103 | dbgarg(cmd, "std=0x%08Lx\n", (long long unsigned)*id); | |
1104 | break; | |
1105 | } | |
1106 | case VIDIOC_S_STD: | |
1107 | { | |
1108 | v4l2_std_id *id = arg, norm; | |
1109 | ||
1110 | dbgarg(cmd, "std=%08Lx\n", (long long unsigned)*id); | |
1111 | ||
1112 | norm = (*id) & vfd->tvnorms; | |
1113 | if (vfd->tvnorms && !norm) /* Check if std is supported */ | |
1114 | break; | |
1115 | ||
1116 | /* Calls the specific handler */ | |
a399810c HV |
1117 | if (ops->vidioc_s_std) |
1118 | ret = ops->vidioc_s_std(file, fh, &norm); | |
35ea11ff HV |
1119 | else |
1120 | ret = -EINVAL; | |
1121 | ||
1122 | /* Updates standard information */ | |
1123 | if (ret >= 0) | |
1124 | vfd->current_norm = norm; | |
1125 | break; | |
1126 | } | |
1127 | case VIDIOC_QUERYSTD: | |
1128 | { | |
1129 | v4l2_std_id *p = arg; | |
1130 | ||
a399810c | 1131 | if (!ops->vidioc_querystd) |
35ea11ff | 1132 | break; |
a399810c | 1133 | ret = ops->vidioc_querystd(file, fh, arg); |
35ea11ff HV |
1134 | if (!ret) |
1135 | dbgarg(cmd, "detected std=%08Lx\n", | |
1136 | (unsigned long long)*p); | |
1137 | break; | |
1138 | } | |
1139 | /* ------ input switching ---------- */ | |
1140 | /* FIXME: Inputs can be handled inside videodev2 */ | |
1141 | case VIDIOC_ENUMINPUT: | |
1142 | { | |
1143 | struct v4l2_input *p = arg; | |
35ea11ff | 1144 | |
b6456c0c MK |
1145 | /* |
1146 | * We set the flags for CAP_PRESETS, CAP_CUSTOM_TIMINGS & | |
1147 | * CAP_STD here based on ioctl handler provided by the | |
1148 | * driver. If the driver doesn't support these | |
1149 | * for a specific input, it must override these flags. | |
1150 | */ | |
1151 | if (ops->vidioc_s_std) | |
1152 | p->capabilities |= V4L2_IN_CAP_STD; | |
1153 | if (ops->vidioc_s_dv_preset) | |
1154 | p->capabilities |= V4L2_IN_CAP_PRESETS; | |
1155 | if (ops->vidioc_s_dv_timings) | |
1156 | p->capabilities |= V4L2_IN_CAP_CUSTOM_TIMINGS; | |
1157 | ||
a399810c | 1158 | if (!ops->vidioc_enum_input) |
35ea11ff | 1159 | break; |
35ea11ff | 1160 | |
a399810c | 1161 | ret = ops->vidioc_enum_input(file, fh, p); |
35ea11ff HV |
1162 | if (!ret) |
1163 | dbgarg(cmd, "index=%d, name=%s, type=%d, " | |
1164 | "audioset=%d, " | |
1165 | "tuner=%d, std=%08Lx, status=%d\n", | |
1166 | p->index, p->name, p->type, p->audioset, | |
1167 | p->tuner, | |
1168 | (unsigned long long)p->std, | |
1169 | p->status); | |
1170 | break; | |
1171 | } | |
1172 | case VIDIOC_G_INPUT: | |
1173 | { | |
1174 | unsigned int *i = arg; | |
1175 | ||
a399810c | 1176 | if (!ops->vidioc_g_input) |
35ea11ff | 1177 | break; |
a399810c | 1178 | ret = ops->vidioc_g_input(file, fh, i); |
35ea11ff HV |
1179 | if (!ret) |
1180 | dbgarg(cmd, "value=%d\n", *i); | |
1181 | break; | |
1182 | } | |
1183 | case VIDIOC_S_INPUT: | |
1184 | { | |
1185 | unsigned int *i = arg; | |
1186 | ||
a399810c | 1187 | if (!ops->vidioc_s_input) |
35ea11ff HV |
1188 | break; |
1189 | dbgarg(cmd, "value=%d\n", *i); | |
a399810c | 1190 | ret = ops->vidioc_s_input(file, fh, *i); |
35ea11ff HV |
1191 | break; |
1192 | } | |
1193 | ||
1194 | /* ------ output switching ---------- */ | |
1195 | case VIDIOC_ENUMOUTPUT: | |
1196 | { | |
1197 | struct v4l2_output *p = arg; | |
35ea11ff | 1198 | |
a399810c | 1199 | if (!ops->vidioc_enum_output) |
35ea11ff | 1200 | break; |
35ea11ff | 1201 | |
b6456c0c MK |
1202 | /* |
1203 | * We set the flags for CAP_PRESETS, CAP_CUSTOM_TIMINGS & | |
1204 | * CAP_STD here based on ioctl handler provided by the | |
1205 | * driver. If the driver doesn't support these | |
1206 | * for a specific output, it must override these flags. | |
1207 | */ | |
1208 | if (ops->vidioc_s_std) | |
1209 | p->capabilities |= V4L2_OUT_CAP_STD; | |
1210 | if (ops->vidioc_s_dv_preset) | |
1211 | p->capabilities |= V4L2_OUT_CAP_PRESETS; | |
1212 | if (ops->vidioc_s_dv_timings) | |
1213 | p->capabilities |= V4L2_OUT_CAP_CUSTOM_TIMINGS; | |
1214 | ||
a399810c | 1215 | ret = ops->vidioc_enum_output(file, fh, p); |
35ea11ff HV |
1216 | if (!ret) |
1217 | dbgarg(cmd, "index=%d, name=%s, type=%d, " | |
1218 | "audioset=0x%x, " | |
1219 | "modulator=%d, std=0x%08Lx\n", | |
1220 | p->index, p->name, p->type, p->audioset, | |
1221 | p->modulator, (unsigned long long)p->std); | |
1222 | break; | |
1223 | } | |
1224 | case VIDIOC_G_OUTPUT: | |
1225 | { | |
1226 | unsigned int *i = arg; | |
1227 | ||
a399810c | 1228 | if (!ops->vidioc_g_output) |
35ea11ff | 1229 | break; |
a399810c | 1230 | ret = ops->vidioc_g_output(file, fh, i); |
35ea11ff HV |
1231 | if (!ret) |
1232 | dbgarg(cmd, "value=%d\n", *i); | |
1233 | break; | |
1234 | } | |
1235 | case VIDIOC_S_OUTPUT: | |
1236 | { | |
1237 | unsigned int *i = arg; | |
1238 | ||
a399810c | 1239 | if (!ops->vidioc_s_output) |
35ea11ff HV |
1240 | break; |
1241 | dbgarg(cmd, "value=%d\n", *i); | |
a399810c | 1242 | ret = ops->vidioc_s_output(file, fh, *i); |
35ea11ff HV |
1243 | break; |
1244 | } | |
1245 | ||
1246 | /* --- controls ---------------------------------------------- */ | |
1247 | case VIDIOC_QUERYCTRL: | |
1248 | { | |
1249 | struct v4l2_queryctrl *p = arg; | |
1250 | ||
a399810c | 1251 | if (!ops->vidioc_queryctrl) |
35ea11ff | 1252 | break; |
a399810c | 1253 | ret = ops->vidioc_queryctrl(file, fh, p); |
35ea11ff HV |
1254 | if (!ret) |
1255 | dbgarg(cmd, "id=0x%x, type=%d, name=%s, min/max=%d/%d, " | |
1256 | "step=%d, default=%d, flags=0x%08x\n", | |
1257 | p->id, p->type, p->name, | |
1258 | p->minimum, p->maximum, | |
1259 | p->step, p->default_value, p->flags); | |
1260 | else | |
1261 | dbgarg(cmd, "id=0x%x\n", p->id); | |
1262 | break; | |
1263 | } | |
1264 | case VIDIOC_G_CTRL: | |
1265 | { | |
1266 | struct v4l2_control *p = arg; | |
1267 | ||
a399810c HV |
1268 | if (ops->vidioc_g_ctrl) |
1269 | ret = ops->vidioc_g_ctrl(file, fh, p); | |
1270 | else if (ops->vidioc_g_ext_ctrls) { | |
35ea11ff HV |
1271 | struct v4l2_ext_controls ctrls; |
1272 | struct v4l2_ext_control ctrl; | |
1273 | ||
1274 | ctrls.ctrl_class = V4L2_CTRL_ID2CLASS(p->id); | |
1275 | ctrls.count = 1; | |
1276 | ctrls.controls = &ctrl; | |
1277 | ctrl.id = p->id; | |
1278 | ctrl.value = p->value; | |
1279 | if (check_ext_ctrls(&ctrls, 1)) { | |
a399810c | 1280 | ret = ops->vidioc_g_ext_ctrls(file, fh, &ctrls); |
35ea11ff HV |
1281 | if (ret == 0) |
1282 | p->value = ctrl.value; | |
1283 | } | |
1284 | } else | |
1285 | break; | |
1286 | if (!ret) | |
1287 | dbgarg(cmd, "id=0x%x, value=%d\n", p->id, p->value); | |
1288 | else | |
1289 | dbgarg(cmd, "id=0x%x\n", p->id); | |
1290 | break; | |
1291 | } | |
1292 | case VIDIOC_S_CTRL: | |
1293 | { | |
1294 | struct v4l2_control *p = arg; | |
1295 | struct v4l2_ext_controls ctrls; | |
1296 | struct v4l2_ext_control ctrl; | |
1297 | ||
a399810c | 1298 | if (!ops->vidioc_s_ctrl && !ops->vidioc_s_ext_ctrls) |
35ea11ff HV |
1299 | break; |
1300 | ||
1301 | dbgarg(cmd, "id=0x%x, value=%d\n", p->id, p->value); | |
1302 | ||
a399810c HV |
1303 | if (ops->vidioc_s_ctrl) { |
1304 | ret = ops->vidioc_s_ctrl(file, fh, p); | |
35ea11ff HV |
1305 | break; |
1306 | } | |
a399810c | 1307 | if (!ops->vidioc_s_ext_ctrls) |
35ea11ff HV |
1308 | break; |
1309 | ||
1310 | ctrls.ctrl_class = V4L2_CTRL_ID2CLASS(p->id); | |
1311 | ctrls.count = 1; | |
1312 | ctrls.controls = &ctrl; | |
1313 | ctrl.id = p->id; | |
1314 | ctrl.value = p->value; | |
1315 | if (check_ext_ctrls(&ctrls, 1)) | |
a399810c | 1316 | ret = ops->vidioc_s_ext_ctrls(file, fh, &ctrls); |
35ea11ff HV |
1317 | break; |
1318 | } | |
1319 | case VIDIOC_G_EXT_CTRLS: | |
1320 | { | |
1321 | struct v4l2_ext_controls *p = arg; | |
1322 | ||
1323 | p->error_idx = p->count; | |
a399810c | 1324 | if (!ops->vidioc_g_ext_ctrls) |
35ea11ff HV |
1325 | break; |
1326 | if (check_ext_ctrls(p, 0)) | |
a399810c | 1327 | ret = ops->vidioc_g_ext_ctrls(file, fh, p); |
35ea11ff HV |
1328 | v4l_print_ext_ctrls(cmd, vfd, p, !ret); |
1329 | break; | |
1330 | } | |
1331 | case VIDIOC_S_EXT_CTRLS: | |
1332 | { | |
1333 | struct v4l2_ext_controls *p = arg; | |
1334 | ||
1335 | p->error_idx = p->count; | |
a399810c | 1336 | if (!ops->vidioc_s_ext_ctrls) |
35ea11ff HV |
1337 | break; |
1338 | v4l_print_ext_ctrls(cmd, vfd, p, 1); | |
1339 | if (check_ext_ctrls(p, 0)) | |
a399810c | 1340 | ret = ops->vidioc_s_ext_ctrls(file, fh, p); |
35ea11ff HV |
1341 | break; |
1342 | } | |
1343 | case VIDIOC_TRY_EXT_CTRLS: | |
1344 | { | |
1345 | struct v4l2_ext_controls *p = arg; | |
1346 | ||
1347 | p->error_idx = p->count; | |
a399810c | 1348 | if (!ops->vidioc_try_ext_ctrls) |
35ea11ff HV |
1349 | break; |
1350 | v4l_print_ext_ctrls(cmd, vfd, p, 1); | |
1351 | if (check_ext_ctrls(p, 0)) | |
a399810c | 1352 | ret = ops->vidioc_try_ext_ctrls(file, fh, p); |
35ea11ff HV |
1353 | break; |
1354 | } | |
1355 | case VIDIOC_QUERYMENU: | |
1356 | { | |
1357 | struct v4l2_querymenu *p = arg; | |
1358 | ||
a399810c | 1359 | if (!ops->vidioc_querymenu) |
35ea11ff | 1360 | break; |
a399810c | 1361 | ret = ops->vidioc_querymenu(file, fh, p); |
35ea11ff HV |
1362 | if (!ret) |
1363 | dbgarg(cmd, "id=0x%x, index=%d, name=%s\n", | |
1364 | p->id, p->index, p->name); | |
1365 | else | |
1366 | dbgarg(cmd, "id=0x%x, index=%d\n", | |
1367 | p->id, p->index); | |
1368 | break; | |
1369 | } | |
1370 | /* --- audio ---------------------------------------------- */ | |
1371 | case VIDIOC_ENUMAUDIO: | |
1372 | { | |
1373 | struct v4l2_audio *p = arg; | |
1374 | ||
a399810c | 1375 | if (!ops->vidioc_enumaudio) |
35ea11ff | 1376 | break; |
a399810c | 1377 | ret = ops->vidioc_enumaudio(file, fh, p); |
35ea11ff HV |
1378 | if (!ret) |
1379 | dbgarg(cmd, "index=%d, name=%s, capability=0x%x, " | |
1380 | "mode=0x%x\n", p->index, p->name, | |
1381 | p->capability, p->mode); | |
1382 | else | |
1383 | dbgarg(cmd, "index=%d\n", p->index); | |
1384 | break; | |
1385 | } | |
1386 | case VIDIOC_G_AUDIO: | |
1387 | { | |
1388 | struct v4l2_audio *p = arg; | |
35ea11ff | 1389 | |
a399810c | 1390 | if (!ops->vidioc_g_audio) |
35ea11ff HV |
1391 | break; |
1392 | ||
a399810c | 1393 | ret = ops->vidioc_g_audio(file, fh, p); |
35ea11ff HV |
1394 | if (!ret) |
1395 | dbgarg(cmd, "index=%d, name=%s, capability=0x%x, " | |
1396 | "mode=0x%x\n", p->index, | |
1397 | p->name, p->capability, p->mode); | |
1398 | else | |
1399 | dbgarg(cmd, "index=%d\n", p->index); | |
1400 | break; | |
1401 | } | |
1402 | case VIDIOC_S_AUDIO: | |
1403 | { | |
1404 | struct v4l2_audio *p = arg; | |
1405 | ||
a399810c | 1406 | if (!ops->vidioc_s_audio) |
35ea11ff HV |
1407 | break; |
1408 | dbgarg(cmd, "index=%d, name=%s, capability=0x%x, " | |
1409 | "mode=0x%x\n", p->index, p->name, | |
1410 | p->capability, p->mode); | |
a399810c | 1411 | ret = ops->vidioc_s_audio(file, fh, p); |
35ea11ff HV |
1412 | break; |
1413 | } | |
1414 | case VIDIOC_ENUMAUDOUT: | |
1415 | { | |
1416 | struct v4l2_audioout *p = arg; | |
1417 | ||
a399810c | 1418 | if (!ops->vidioc_enumaudout) |
35ea11ff HV |
1419 | break; |
1420 | dbgarg(cmd, "Enum for index=%d\n", p->index); | |
a399810c | 1421 | ret = ops->vidioc_enumaudout(file, fh, p); |
35ea11ff HV |
1422 | if (!ret) |
1423 | dbgarg2("index=%d, name=%s, capability=%d, " | |
1424 | "mode=%d\n", p->index, p->name, | |
1425 | p->capability, p->mode); | |
1426 | break; | |
1427 | } | |
1428 | case VIDIOC_G_AUDOUT: | |
1429 | { | |
1430 | struct v4l2_audioout *p = arg; | |
1431 | ||
a399810c | 1432 | if (!ops->vidioc_g_audout) |
35ea11ff | 1433 | break; |
337f9d20 | 1434 | |
a399810c | 1435 | ret = ops->vidioc_g_audout(file, fh, p); |
35ea11ff HV |
1436 | if (!ret) |
1437 | dbgarg2("index=%d, name=%s, capability=%d, " | |
1438 | "mode=%d\n", p->index, p->name, | |
1439 | p->capability, p->mode); | |
1440 | break; | |
1441 | } | |
1442 | case VIDIOC_S_AUDOUT: | |
1443 | { | |
1444 | struct v4l2_audioout *p = arg; | |
1445 | ||
a399810c | 1446 | if (!ops->vidioc_s_audout) |
35ea11ff HV |
1447 | break; |
1448 | dbgarg(cmd, "index=%d, name=%s, capability=%d, " | |
1449 | "mode=%d\n", p->index, p->name, | |
1450 | p->capability, p->mode); | |
1451 | ||
a399810c | 1452 | ret = ops->vidioc_s_audout(file, fh, p); |
35ea11ff HV |
1453 | break; |
1454 | } | |
1455 | case VIDIOC_G_MODULATOR: | |
1456 | { | |
1457 | struct v4l2_modulator *p = arg; | |
1458 | ||
a399810c | 1459 | if (!ops->vidioc_g_modulator) |
35ea11ff | 1460 | break; |
a399810c | 1461 | ret = ops->vidioc_g_modulator(file, fh, p); |
35ea11ff HV |
1462 | if (!ret) |
1463 | dbgarg(cmd, "index=%d, name=%s, " | |
1464 | "capability=%d, rangelow=%d," | |
1465 | " rangehigh=%d, txsubchans=%d\n", | |
1466 | p->index, p->name, p->capability, | |
1467 | p->rangelow, p->rangehigh, | |
1468 | p->txsubchans); | |
1469 | break; | |
1470 | } | |
1471 | case VIDIOC_S_MODULATOR: | |
1472 | { | |
1473 | struct v4l2_modulator *p = arg; | |
1474 | ||
a399810c | 1475 | if (!ops->vidioc_s_modulator) |
35ea11ff HV |
1476 | break; |
1477 | dbgarg(cmd, "index=%d, name=%s, capability=%d, " | |
1478 | "rangelow=%d, rangehigh=%d, txsubchans=%d\n", | |
1479 | p->index, p->name, p->capability, p->rangelow, | |
1480 | p->rangehigh, p->txsubchans); | |
a399810c | 1481 | ret = ops->vidioc_s_modulator(file, fh, p); |
35ea11ff HV |
1482 | break; |
1483 | } | |
1484 | case VIDIOC_G_CROP: | |
1485 | { | |
1486 | struct v4l2_crop *p = arg; | |
1487 | ||
a399810c | 1488 | if (!ops->vidioc_g_crop) |
35ea11ff | 1489 | break; |
a56a18c3 | 1490 | |
35ea11ff | 1491 | dbgarg(cmd, "type=%s\n", prt_names(p->type, v4l2_type_names)); |
a399810c | 1492 | ret = ops->vidioc_g_crop(file, fh, p); |
35ea11ff HV |
1493 | if (!ret) |
1494 | dbgrect(vfd, "", &p->c); | |
1495 | break; | |
1496 | } | |
1497 | case VIDIOC_S_CROP: | |
1498 | { | |
1499 | struct v4l2_crop *p = arg; | |
1500 | ||
a399810c | 1501 | if (!ops->vidioc_s_crop) |
35ea11ff HV |
1502 | break; |
1503 | dbgarg(cmd, "type=%s\n", prt_names(p->type, v4l2_type_names)); | |
1504 | dbgrect(vfd, "", &p->c); | |
a399810c | 1505 | ret = ops->vidioc_s_crop(file, fh, p); |
35ea11ff HV |
1506 | break; |
1507 | } | |
1508 | case VIDIOC_CROPCAP: | |
1509 | { | |
1510 | struct v4l2_cropcap *p = arg; | |
1511 | ||
1512 | /*FIXME: Should also show v4l2_fract pixelaspect */ | |
a399810c | 1513 | if (!ops->vidioc_cropcap) |
35ea11ff | 1514 | break; |
a56a18c3 | 1515 | |
35ea11ff | 1516 | dbgarg(cmd, "type=%s\n", prt_names(p->type, v4l2_type_names)); |
a399810c | 1517 | ret = ops->vidioc_cropcap(file, fh, p); |
35ea11ff HV |
1518 | if (!ret) { |
1519 | dbgrect(vfd, "bounds ", &p->bounds); | |
1520 | dbgrect(vfd, "defrect ", &p->defrect); | |
1521 | } | |
1522 | break; | |
1523 | } | |
1524 | case VIDIOC_G_JPEGCOMP: | |
1525 | { | |
1526 | struct v4l2_jpegcompression *p = arg; | |
1527 | ||
a399810c | 1528 | if (!ops->vidioc_g_jpegcomp) |
35ea11ff | 1529 | break; |
a56a18c3 | 1530 | |
a399810c | 1531 | ret = ops->vidioc_g_jpegcomp(file, fh, p); |
35ea11ff HV |
1532 | if (!ret) |
1533 | dbgarg(cmd, "quality=%d, APPn=%d, " | |
1534 | "APP_len=%d, COM_len=%d, " | |
1535 | "jpeg_markers=%d\n", | |
1536 | p->quality, p->APPn, p->APP_len, | |
1537 | p->COM_len, p->jpeg_markers); | |
1538 | break; | |
1539 | } | |
1540 | case VIDIOC_S_JPEGCOMP: | |
1541 | { | |
1542 | struct v4l2_jpegcompression *p = arg; | |
1543 | ||
a399810c | 1544 | if (!ops->vidioc_g_jpegcomp) |
35ea11ff HV |
1545 | break; |
1546 | dbgarg(cmd, "quality=%d, APPn=%d, APP_len=%d, " | |
1547 | "COM_len=%d, jpeg_markers=%d\n", | |
1548 | p->quality, p->APPn, p->APP_len, | |
1549 | p->COM_len, p->jpeg_markers); | |
a399810c | 1550 | ret = ops->vidioc_s_jpegcomp(file, fh, p); |
35ea11ff HV |
1551 | break; |
1552 | } | |
1553 | case VIDIOC_G_ENC_INDEX: | |
1554 | { | |
1555 | struct v4l2_enc_idx *p = arg; | |
1556 | ||
a399810c | 1557 | if (!ops->vidioc_g_enc_index) |
35ea11ff | 1558 | break; |
a399810c | 1559 | ret = ops->vidioc_g_enc_index(file, fh, p); |
35ea11ff HV |
1560 | if (!ret) |
1561 | dbgarg(cmd, "entries=%d, entries_cap=%d\n", | |
1562 | p->entries, p->entries_cap); | |
1563 | break; | |
1564 | } | |
1565 | case VIDIOC_ENCODER_CMD: | |
1566 | { | |
1567 | struct v4l2_encoder_cmd *p = arg; | |
1568 | ||
a399810c | 1569 | if (!ops->vidioc_encoder_cmd) |
35ea11ff | 1570 | break; |
a399810c | 1571 | ret = ops->vidioc_encoder_cmd(file, fh, p); |
35ea11ff HV |
1572 | if (!ret) |
1573 | dbgarg(cmd, "cmd=%d, flags=%x\n", p->cmd, p->flags); | |
1574 | break; | |
1575 | } | |
1576 | case VIDIOC_TRY_ENCODER_CMD: | |
1577 | { | |
1578 | struct v4l2_encoder_cmd *p = arg; | |
1579 | ||
a399810c | 1580 | if (!ops->vidioc_try_encoder_cmd) |
35ea11ff | 1581 | break; |
a399810c | 1582 | ret = ops->vidioc_try_encoder_cmd(file, fh, p); |
35ea11ff HV |
1583 | if (!ret) |
1584 | dbgarg(cmd, "cmd=%d, flags=%x\n", p->cmd, p->flags); | |
1585 | break; | |
1586 | } | |
1587 | case VIDIOC_G_PARM: | |
1588 | { | |
1589 | struct v4l2_streamparm *p = arg; | |
35ea11ff | 1590 | |
a399810c | 1591 | if (ops->vidioc_g_parm) { |
34796bc0 TP |
1592 | ret = check_fmt(ops, p->type); |
1593 | if (ret) | |
1594 | break; | |
a399810c | 1595 | ret = ops->vidioc_g_parm(file, fh, p); |
35ea11ff | 1596 | } else { |
9bedc7f7 HV |
1597 | v4l2_std_id std = vfd->current_norm; |
1598 | ||
35ea11ff HV |
1599 | if (p->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) |
1600 | return -EINVAL; | |
1601 | ||
35ea11ff | 1602 | ret = 0; |
9bedc7f7 HV |
1603 | if (ops->vidioc_g_std) |
1604 | ret = ops->vidioc_g_std(file, fh, &std); | |
1605 | else if (std == 0) | |
1606 | ret = -EINVAL; | |
1607 | if (ret == 0) | |
1608 | v4l2_video_std_frame_period(std, | |
1609 | &p->parm.capture.timeperframe); | |
35ea11ff HV |
1610 | } |
1611 | ||
1612 | dbgarg(cmd, "type=%d\n", p->type); | |
1613 | break; | |
1614 | } | |
1615 | case VIDIOC_S_PARM: | |
1616 | { | |
1617 | struct v4l2_streamparm *p = arg; | |
1618 | ||
a399810c | 1619 | if (!ops->vidioc_s_parm) |
35ea11ff | 1620 | break; |
34796bc0 TP |
1621 | ret = check_fmt(ops, p->type); |
1622 | if (ret) | |
1623 | break; | |
1624 | ||
35ea11ff | 1625 | dbgarg(cmd, "type=%d\n", p->type); |
a399810c | 1626 | ret = ops->vidioc_s_parm(file, fh, p); |
35ea11ff HV |
1627 | break; |
1628 | } | |
1629 | case VIDIOC_G_TUNER: | |
1630 | { | |
1631 | struct v4l2_tuner *p = arg; | |
35ea11ff | 1632 | |
a399810c | 1633 | if (!ops->vidioc_g_tuner) |
35ea11ff HV |
1634 | break; |
1635 | ||
a399810c | 1636 | ret = ops->vidioc_g_tuner(file, fh, p); |
35ea11ff HV |
1637 | if (!ret) |
1638 | dbgarg(cmd, "index=%d, name=%s, type=%d, " | |
1639 | "capability=0x%x, rangelow=%d, " | |
1640 | "rangehigh=%d, signal=%d, afc=%d, " | |
1641 | "rxsubchans=0x%x, audmode=%d\n", | |
1642 | p->index, p->name, p->type, | |
1643 | p->capability, p->rangelow, | |
1644 | p->rangehigh, p->signal, p->afc, | |
1645 | p->rxsubchans, p->audmode); | |
1646 | break; | |
1647 | } | |
1648 | case VIDIOC_S_TUNER: | |
1649 | { | |
1650 | struct v4l2_tuner *p = arg; | |
1651 | ||
a399810c | 1652 | if (!ops->vidioc_s_tuner) |
35ea11ff HV |
1653 | break; |
1654 | dbgarg(cmd, "index=%d, name=%s, type=%d, " | |
1655 | "capability=0x%x, rangelow=%d, " | |
1656 | "rangehigh=%d, signal=%d, afc=%d, " | |
1657 | "rxsubchans=0x%x, audmode=%d\n", | |
1658 | p->index, p->name, p->type, | |
1659 | p->capability, p->rangelow, | |
1660 | p->rangehigh, p->signal, p->afc, | |
1661 | p->rxsubchans, p->audmode); | |
a399810c | 1662 | ret = ops->vidioc_s_tuner(file, fh, p); |
35ea11ff HV |
1663 | break; |
1664 | } | |
1665 | case VIDIOC_G_FREQUENCY: | |
1666 | { | |
1667 | struct v4l2_frequency *p = arg; | |
1668 | ||
a399810c | 1669 | if (!ops->vidioc_g_frequency) |
35ea11ff HV |
1670 | break; |
1671 | ||
a399810c | 1672 | ret = ops->vidioc_g_frequency(file, fh, p); |
35ea11ff HV |
1673 | if (!ret) |
1674 | dbgarg(cmd, "tuner=%d, type=%d, frequency=%d\n", | |
1675 | p->tuner, p->type, p->frequency); | |
1676 | break; | |
1677 | } | |
1678 | case VIDIOC_S_FREQUENCY: | |
1679 | { | |
1680 | struct v4l2_frequency *p = arg; | |
1681 | ||
a399810c | 1682 | if (!ops->vidioc_s_frequency) |
35ea11ff HV |
1683 | break; |
1684 | dbgarg(cmd, "tuner=%d, type=%d, frequency=%d\n", | |
1685 | p->tuner, p->type, p->frequency); | |
a399810c | 1686 | ret = ops->vidioc_s_frequency(file, fh, p); |
35ea11ff HV |
1687 | break; |
1688 | } | |
1689 | case VIDIOC_G_SLICED_VBI_CAP: | |
1690 | { | |
1691 | struct v4l2_sliced_vbi_cap *p = arg; | |
35ea11ff | 1692 | |
a399810c | 1693 | if (!ops->vidioc_g_sliced_vbi_cap) |
35ea11ff | 1694 | break; |
19c96e4b TP |
1695 | |
1696 | /* Clear up to type, everything after type is zerod already */ | |
1697 | memset(p, 0, offsetof(struct v4l2_sliced_vbi_cap, type)); | |
1698 | ||
35ea11ff | 1699 | dbgarg(cmd, "type=%s\n", prt_names(p->type, v4l2_type_names)); |
a399810c | 1700 | ret = ops->vidioc_g_sliced_vbi_cap(file, fh, p); |
35ea11ff HV |
1701 | if (!ret) |
1702 | dbgarg2("service_set=%d\n", p->service_set); | |
1703 | break; | |
1704 | } | |
1705 | case VIDIOC_LOG_STATUS: | |
1706 | { | |
a399810c | 1707 | if (!ops->vidioc_log_status) |
35ea11ff | 1708 | break; |
a399810c | 1709 | ret = ops->vidioc_log_status(file, fh); |
35ea11ff HV |
1710 | break; |
1711 | } | |
1712 | #ifdef CONFIG_VIDEO_ADV_DEBUG | |
1713 | case VIDIOC_DBG_G_REGISTER: | |
1714 | { | |
aecde8b5 | 1715 | struct v4l2_dbg_register *p = arg; |
35ea11ff HV |
1716 | |
1717 | if (!capable(CAP_SYS_ADMIN)) | |
1718 | ret = -EPERM; | |
a399810c HV |
1719 | else if (ops->vidioc_g_register) |
1720 | ret = ops->vidioc_g_register(file, fh, p); | |
35ea11ff HV |
1721 | break; |
1722 | } | |
1723 | case VIDIOC_DBG_S_REGISTER: | |
1724 | { | |
aecde8b5 | 1725 | struct v4l2_dbg_register *p = arg; |
35ea11ff HV |
1726 | |
1727 | if (!capable(CAP_SYS_ADMIN)) | |
1728 | ret = -EPERM; | |
a399810c HV |
1729 | else if (ops->vidioc_s_register) |
1730 | ret = ops->vidioc_s_register(file, fh, p); | |
35ea11ff HV |
1731 | break; |
1732 | } | |
1733 | #endif | |
aecde8b5 | 1734 | case VIDIOC_DBG_G_CHIP_IDENT: |
35ea11ff | 1735 | { |
aecde8b5 | 1736 | struct v4l2_dbg_chip_ident *p = arg; |
35ea11ff | 1737 | |
a399810c | 1738 | if (!ops->vidioc_g_chip_ident) |
35ea11ff | 1739 | break; |
80b36e0f HV |
1740 | p->ident = V4L2_IDENT_NONE; |
1741 | p->revision = 0; | |
a399810c | 1742 | ret = ops->vidioc_g_chip_ident(file, fh, p); |
35ea11ff HV |
1743 | if (!ret) |
1744 | dbgarg(cmd, "chip_ident=%u, revision=0x%x\n", p->ident, p->revision); | |
1745 | break; | |
1746 | } | |
35ea11ff HV |
1747 | case VIDIOC_S_HW_FREQ_SEEK: |
1748 | { | |
1749 | struct v4l2_hw_freq_seek *p = arg; | |
1750 | ||
a399810c | 1751 | if (!ops->vidioc_s_hw_freq_seek) |
35ea11ff HV |
1752 | break; |
1753 | dbgarg(cmd, | |
1754 | "tuner=%d, type=%d, seek_upward=%d, wrap_around=%d\n", | |
1755 | p->tuner, p->type, p->seek_upward, p->wrap_around); | |
a399810c HV |
1756 | ret = ops->vidioc_s_hw_freq_seek(file, fh, p); |
1757 | break; | |
1758 | } | |
74d83fa0 MCC |
1759 | case VIDIOC_ENUM_FRAMESIZES: |
1760 | { | |
1761 | struct v4l2_frmsizeenum *p = arg; | |
1762 | ||
1763 | if (!ops->vidioc_enum_framesizes) | |
1764 | break; | |
1765 | ||
74d83fa0 MCC |
1766 | ret = ops->vidioc_enum_framesizes(file, fh, p); |
1767 | dbgarg(cmd, | |
d1afe425 MCC |
1768 | "index=%d, pixelformat=%c%c%c%c, type=%d ", |
1769 | p->index, | |
1770 | (p->pixel_format & 0xff), | |
1771 | (p->pixel_format >> 8) & 0xff, | |
1772 | (p->pixel_format >> 16) & 0xff, | |
1773 | (p->pixel_format >> 24) & 0xff, | |
1774 | p->type); | |
74d83fa0 MCC |
1775 | switch (p->type) { |
1776 | case V4L2_FRMSIZE_TYPE_DISCRETE: | |
d33fbcbb | 1777 | dbgarg3("width = %d, height=%d\n", |
74d83fa0 MCC |
1778 | p->discrete.width, p->discrete.height); |
1779 | break; | |
1780 | case V4L2_FRMSIZE_TYPE_STEPWISE: | |
d33fbcbb | 1781 | dbgarg3("min %dx%d, max %dx%d, step %dx%d\n", |
74d83fa0 MCC |
1782 | p->stepwise.min_width, p->stepwise.min_height, |
1783 | p->stepwise.step_width, p->stepwise.step_height, | |
1784 | p->stepwise.max_width, p->stepwise.max_height); | |
1785 | break; | |
1786 | case V4L2_FRMSIZE_TYPE_CONTINUOUS: | |
d33fbcbb | 1787 | dbgarg3("continuous\n"); |
74d83fa0 MCC |
1788 | break; |
1789 | default: | |
d33fbcbb | 1790 | dbgarg3("- Unknown type!\n"); |
74d83fa0 MCC |
1791 | } |
1792 | ||
1793 | break; | |
1794 | } | |
1795 | case VIDIOC_ENUM_FRAMEINTERVALS: | |
1796 | { | |
1797 | struct v4l2_frmivalenum *p = arg; | |
1798 | ||
1799 | if (!ops->vidioc_enum_frameintervals) | |
1800 | break; | |
1801 | ||
74d83fa0 MCC |
1802 | ret = ops->vidioc_enum_frameintervals(file, fh, p); |
1803 | dbgarg(cmd, | |
1804 | "index=%d, pixelformat=%d, width=%d, height=%d, type=%d ", | |
1805 | p->index, p->pixel_format, | |
1806 | p->width, p->height, p->type); | |
1807 | switch (p->type) { | |
1808 | case V4L2_FRMIVAL_TYPE_DISCRETE: | |
1809 | dbgarg2("fps=%d/%d\n", | |
1810 | p->discrete.numerator, | |
1811 | p->discrete.denominator); | |
1812 | break; | |
1813 | case V4L2_FRMIVAL_TYPE_STEPWISE: | |
1958578d MCC |
1814 | dbgarg2("min=%d/%d, max=%d/%d, step=%d/%d\n", |
1815 | p->stepwise.min.numerator, | |
1816 | p->stepwise.min.denominator, | |
1817 | p->stepwise.max.numerator, | |
1818 | p->stepwise.max.denominator, | |
1819 | p->stepwise.step.numerator, | |
1820 | p->stepwise.step.denominator); | |
74d83fa0 MCC |
1821 | break; |
1822 | case V4L2_FRMIVAL_TYPE_CONTINUOUS: | |
1823 | dbgarg2("continuous\n"); | |
1824 | break; | |
1825 | default: | |
1826 | dbgarg2("- Unknown type!\n"); | |
1827 | } | |
1828 | break; | |
1829 | } | |
b6456c0c MK |
1830 | case VIDIOC_ENUM_DV_PRESETS: |
1831 | { | |
1832 | struct v4l2_dv_enum_preset *p = arg; | |
1833 | ||
1834 | if (!ops->vidioc_enum_dv_presets) | |
1835 | break; | |
1836 | ||
1837 | ret = ops->vidioc_enum_dv_presets(file, fh, p); | |
1838 | if (!ret) | |
1839 | dbgarg(cmd, | |
1840 | "index=%d, preset=%d, name=%s, width=%d," | |
1841 | " height=%d ", | |
1842 | p->index, p->preset, p->name, p->width, | |
1843 | p->height); | |
1844 | break; | |
1845 | } | |
1846 | case VIDIOC_S_DV_PRESET: | |
1847 | { | |
1848 | struct v4l2_dv_preset *p = arg; | |
1849 | ||
1850 | if (!ops->vidioc_s_dv_preset) | |
1851 | break; | |
1852 | ||
1853 | dbgarg(cmd, "preset=%d\n", p->preset); | |
1854 | ret = ops->vidioc_s_dv_preset(file, fh, p); | |
1855 | break; | |
1856 | } | |
1857 | case VIDIOC_G_DV_PRESET: | |
1858 | { | |
1859 | struct v4l2_dv_preset *p = arg; | |
1860 | ||
1861 | if (!ops->vidioc_g_dv_preset) | |
1862 | break; | |
1863 | ||
1864 | ret = ops->vidioc_g_dv_preset(file, fh, p); | |
1865 | if (!ret) | |
1866 | dbgarg(cmd, "preset=%d\n", p->preset); | |
1867 | break; | |
1868 | } | |
1869 | case VIDIOC_QUERY_DV_PRESET: | |
1870 | { | |
1871 | struct v4l2_dv_preset *p = arg; | |
1872 | ||
1873 | if (!ops->vidioc_query_dv_preset) | |
1874 | break; | |
1875 | ||
1876 | ret = ops->vidioc_query_dv_preset(file, fh, p); | |
1877 | if (!ret) | |
1878 | dbgarg(cmd, "preset=%d\n", p->preset); | |
1879 | break; | |
1880 | } | |
1881 | case VIDIOC_S_DV_TIMINGS: | |
1882 | { | |
1883 | struct v4l2_dv_timings *p = arg; | |
1884 | ||
1885 | if (!ops->vidioc_s_dv_timings) | |
1886 | break; | |
1887 | ||
1888 | switch (p->type) { | |
1889 | case V4L2_DV_BT_656_1120: | |
1890 | dbgarg2("bt-656/1120:interlaced=%d, pixelclock=%lld," | |
1891 | " width=%d, height=%d, polarities=%x," | |
1892 | " hfrontporch=%d, hsync=%d, hbackporch=%d," | |
1893 | " vfrontporch=%d, vsync=%d, vbackporch=%d," | |
1894 | " il_vfrontporch=%d, il_vsync=%d," | |
1895 | " il_vbackporch=%d\n", | |
1896 | p->bt.interlaced, p->bt.pixelclock, | |
1897 | p->bt.width, p->bt.height, p->bt.polarities, | |
1898 | p->bt.hfrontporch, p->bt.hsync, | |
1899 | p->bt.hbackporch, p->bt.vfrontporch, | |
1900 | p->bt.vsync, p->bt.vbackporch, | |
1901 | p->bt.il_vfrontporch, p->bt.il_vsync, | |
1902 | p->bt.il_vbackporch); | |
1903 | ret = ops->vidioc_s_dv_timings(file, fh, p); | |
1904 | break; | |
1905 | default: | |
1906 | dbgarg2("Unknown type %d!\n", p->type); | |
1907 | break; | |
1908 | } | |
1909 | break; | |
1910 | } | |
1911 | case VIDIOC_G_DV_TIMINGS: | |
1912 | { | |
1913 | struct v4l2_dv_timings *p = arg; | |
1914 | ||
1915 | if (!ops->vidioc_g_dv_timings) | |
1916 | break; | |
1917 | ||
1918 | ret = ops->vidioc_g_dv_timings(file, fh, p); | |
1919 | if (!ret) { | |
1920 | switch (p->type) { | |
1921 | case V4L2_DV_BT_656_1120: | |
1922 | dbgarg2("bt-656/1120:interlaced=%d," | |
1923 | " pixelclock=%lld," | |
1924 | " width=%d, height=%d, polarities=%x," | |
1925 | " hfrontporch=%d, hsync=%d," | |
1926 | " hbackporch=%d, vfrontporch=%d," | |
1927 | " vsync=%d, vbackporch=%d," | |
1928 | " il_vfrontporch=%d, il_vsync=%d," | |
1929 | " il_vbackporch=%d\n", | |
1930 | p->bt.interlaced, p->bt.pixelclock, | |
1931 | p->bt.width, p->bt.height, | |
1932 | p->bt.polarities, p->bt.hfrontporch, | |
1933 | p->bt.hsync, p->bt.hbackporch, | |
1934 | p->bt.vfrontporch, p->bt.vsync, | |
1935 | p->bt.vbackporch, p->bt.il_vfrontporch, | |
1936 | p->bt.il_vsync, p->bt.il_vbackporch); | |
1937 | break; | |
1938 | default: | |
1939 | dbgarg2("Unknown type %d!\n", p->type); | |
1940 | break; | |
1941 | } | |
1942 | } | |
1943 | break; | |
1944 | } | |
74d83fa0 | 1945 | |
a399810c HV |
1946 | default: |
1947 | { | |
1948 | if (!ops->vidioc_default) | |
1949 | break; | |
1950 | ret = ops->vidioc_default(file, fh, cmd, arg); | |
35ea11ff HV |
1951 | break; |
1952 | } | |
1953 | } /* switch */ | |
1954 | ||
1955 | if (vfd->debug & V4L2_DEBUG_IOCTL_ARG) { | |
1956 | if (ret < 0) { | |
1957 | v4l_print_ioctl(vfd->name, cmd); | |
069b7479 | 1958 | printk(KERN_CONT " error %ld\n", ret); |
35ea11ff HV |
1959 | } |
1960 | } | |
1961 | ||
1962 | return ret; | |
1963 | } | |
1964 | ||
19c96e4b TP |
1965 | /* In some cases, only a few fields are used as input, i.e. when the app sets |
1966 | * "index" and then the driver fills in the rest of the structure for the thing | |
1967 | * with that index. We only need to copy up the first non-input field. */ | |
1968 | static unsigned long cmd_input_size(unsigned int cmd) | |
1969 | { | |
1970 | /* Size of structure up to and including 'field' */ | |
9f1a693f HV |
1971 | #define CMDINSIZE(cmd, type, field) \ |
1972 | case VIDIOC_##cmd: \ | |
1973 | return offsetof(struct v4l2_##type, field) + \ | |
1974 | sizeof(((struct v4l2_##type *)0)->field); | |
19c96e4b | 1975 | |
9f1a693f | 1976 | switch (cmd) { |
19c96e4b TP |
1977 | CMDINSIZE(ENUM_FMT, fmtdesc, type); |
1978 | CMDINSIZE(G_FMT, format, type); | |
1979 | CMDINSIZE(QUERYBUF, buffer, type); | |
1980 | CMDINSIZE(G_PARM, streamparm, type); | |
1981 | CMDINSIZE(ENUMSTD, standard, index); | |
1982 | CMDINSIZE(ENUMINPUT, input, index); | |
1983 | CMDINSIZE(G_CTRL, control, id); | |
1984 | CMDINSIZE(G_TUNER, tuner, index); | |
1985 | CMDINSIZE(QUERYCTRL, queryctrl, id); | |
1986 | CMDINSIZE(QUERYMENU, querymenu, index); | |
1987 | CMDINSIZE(ENUMOUTPUT, output, index); | |
1988 | CMDINSIZE(G_MODULATOR, modulator, index); | |
1989 | CMDINSIZE(G_FREQUENCY, frequency, tuner); | |
1990 | CMDINSIZE(CROPCAP, cropcap, type); | |
1991 | CMDINSIZE(G_CROP, crop, type); | |
1992 | CMDINSIZE(ENUMAUDIO, audio, index); | |
1993 | CMDINSIZE(ENUMAUDOUT, audioout, index); | |
1994 | CMDINSIZE(ENCODER_CMD, encoder_cmd, flags); | |
1995 | CMDINSIZE(TRY_ENCODER_CMD, encoder_cmd, flags); | |
1996 | CMDINSIZE(G_SLICED_VBI_CAP, sliced_vbi_cap, type); | |
1997 | CMDINSIZE(ENUM_FRAMESIZES, frmsizeenum, pixel_format); | |
1998 | CMDINSIZE(ENUM_FRAMEINTERVALS, frmivalenum, height); | |
1999 | default: | |
2000 | return _IOC_SIZE(cmd); | |
2001 | } | |
2002 | } | |
2003 | ||
069b7479 | 2004 | long video_ioctl2(struct file *file, |
35ea11ff HV |
2005 | unsigned int cmd, unsigned long arg) |
2006 | { | |
2007 | char sbuf[128]; | |
2008 | void *mbuf = NULL; | |
2009 | void *parg = NULL; | |
069b7479 | 2010 | long err = -EINVAL; |
35ea11ff HV |
2011 | int is_ext_ctrl; |
2012 | size_t ctrls_size = 0; | |
2013 | void __user *user_ptr = NULL; | |
2014 | ||
2015 | #ifdef __OLD_VIDIOC_ | |
2016 | cmd = video_fix_command(cmd); | |
2017 | #endif | |
2018 | is_ext_ctrl = (cmd == VIDIOC_S_EXT_CTRLS || cmd == VIDIOC_G_EXT_CTRLS || | |
2019 | cmd == VIDIOC_TRY_EXT_CTRLS); | |
2020 | ||
2021 | /* Copy arguments into temp kernel buffer */ | |
337f9d20 | 2022 | if (_IOC_DIR(cmd) != _IOC_NONE) { |
35ea11ff HV |
2023 | if (_IOC_SIZE(cmd) <= sizeof(sbuf)) { |
2024 | parg = sbuf; | |
2025 | } else { | |
2026 | /* too big to allocate from stack */ | |
2027 | mbuf = kmalloc(_IOC_SIZE(cmd), GFP_KERNEL); | |
2028 | if (NULL == mbuf) | |
2029 | return -ENOMEM; | |
2030 | parg = mbuf; | |
2031 | } | |
2032 | ||
2033 | err = -EFAULT; | |
19c96e4b TP |
2034 | if (_IOC_DIR(cmd) & _IOC_WRITE) { |
2035 | unsigned long n = cmd_input_size(cmd); | |
2036 | ||
2037 | if (copy_from_user(parg, (void __user *)arg, n)) | |
35ea11ff | 2038 | goto out; |
19c96e4b TP |
2039 | |
2040 | /* zero out anything we don't copy from userspace */ | |
2041 | if (n < _IOC_SIZE(cmd)) | |
2042 | memset((u8 *)parg + n, 0, _IOC_SIZE(cmd) - n); | |
337f9d20 TP |
2043 | } else { |
2044 | /* read-only ioctl */ | |
2045 | memset(parg, 0, _IOC_SIZE(cmd)); | |
19c96e4b | 2046 | } |
35ea11ff HV |
2047 | } |
2048 | ||
2049 | if (is_ext_ctrl) { | |
2050 | struct v4l2_ext_controls *p = parg; | |
2051 | ||
2052 | /* In case of an error, tell the caller that it wasn't | |
2053 | a specific control that caused it. */ | |
2054 | p->error_idx = p->count; | |
2055 | user_ptr = (void __user *)p->controls; | |
2056 | if (p->count) { | |
2057 | ctrls_size = sizeof(struct v4l2_ext_control) * p->count; | |
2058 | /* Note: v4l2_ext_controls fits in sbuf[] so mbuf is still NULL. */ | |
2059 | mbuf = kmalloc(ctrls_size, GFP_KERNEL); | |
2060 | err = -ENOMEM; | |
2061 | if (NULL == mbuf) | |
2062 | goto out_ext_ctrl; | |
2063 | err = -EFAULT; | |
2064 | if (copy_from_user(mbuf, user_ptr, ctrls_size)) | |
2065 | goto out_ext_ctrl; | |
2066 | p->controls = mbuf; | |
2067 | } | |
2068 | } | |
2069 | ||
2070 | /* Handles IOCTL */ | |
b1f88407 | 2071 | err = __video_do_ioctl(file, cmd, parg); |
35ea11ff HV |
2072 | if (err == -ENOIOCTLCMD) |
2073 | err = -EINVAL; | |
2074 | if (is_ext_ctrl) { | |
2075 | struct v4l2_ext_controls *p = parg; | |
2076 | ||
2077 | p->controls = (void *)user_ptr; | |
2078 | if (p->count && err == 0 && copy_to_user(user_ptr, mbuf, ctrls_size)) | |
2079 | err = -EFAULT; | |
2080 | goto out_ext_ctrl; | |
2081 | } | |
2082 | if (err < 0) | |
2083 | goto out; | |
2084 | ||
2085 | out_ext_ctrl: | |
2086 | /* Copy results into user buffer */ | |
2087 | switch (_IOC_DIR(cmd)) { | |
2088 | case _IOC_READ: | |
2089 | case (_IOC_WRITE | _IOC_READ): | |
2090 | if (copy_to_user((void __user *)arg, parg, _IOC_SIZE(cmd))) | |
2091 | err = -EFAULT; | |
2092 | break; | |
2093 | } | |
2094 | ||
2095 | out: | |
2096 | kfree(mbuf); | |
2097 | return err; | |
2098 | } | |
8a522c91 | 2099 | EXPORT_SYMBOL(video_ioctl2); |