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 */ | |
21 | #include <linux/videodev2.h> | |
22 | ||
35ea11ff HV |
23 | #include <media/v4l2-common.h> |
24 | #include <media/v4l2-ioctl.h> | |
11bbc1ca | 25 | #include <media/v4l2-ctrls.h> |
d3d7c963 SA |
26 | #include <media/v4l2-fh.h> |
27 | #include <media/v4l2-event.h> | |
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 */ | |
35ea11ff HV |
182 | static const char *v4l2_ioctls[] = { |
183 | [_IOC_NR(VIDIOC_QUERYCAP)] = "VIDIOC_QUERYCAP", | |
184 | [_IOC_NR(VIDIOC_RESERVED)] = "VIDIOC_RESERVED", | |
185 | [_IOC_NR(VIDIOC_ENUM_FMT)] = "VIDIOC_ENUM_FMT", | |
186 | [_IOC_NR(VIDIOC_G_FMT)] = "VIDIOC_G_FMT", | |
187 | [_IOC_NR(VIDIOC_S_FMT)] = "VIDIOC_S_FMT", | |
188 | [_IOC_NR(VIDIOC_REQBUFS)] = "VIDIOC_REQBUFS", | |
189 | [_IOC_NR(VIDIOC_QUERYBUF)] = "VIDIOC_QUERYBUF", | |
190 | [_IOC_NR(VIDIOC_G_FBUF)] = "VIDIOC_G_FBUF", | |
191 | [_IOC_NR(VIDIOC_S_FBUF)] = "VIDIOC_S_FBUF", | |
192 | [_IOC_NR(VIDIOC_OVERLAY)] = "VIDIOC_OVERLAY", | |
193 | [_IOC_NR(VIDIOC_QBUF)] = "VIDIOC_QBUF", | |
194 | [_IOC_NR(VIDIOC_DQBUF)] = "VIDIOC_DQBUF", | |
195 | [_IOC_NR(VIDIOC_STREAMON)] = "VIDIOC_STREAMON", | |
196 | [_IOC_NR(VIDIOC_STREAMOFF)] = "VIDIOC_STREAMOFF", | |
197 | [_IOC_NR(VIDIOC_G_PARM)] = "VIDIOC_G_PARM", | |
198 | [_IOC_NR(VIDIOC_S_PARM)] = "VIDIOC_S_PARM", | |
199 | [_IOC_NR(VIDIOC_G_STD)] = "VIDIOC_G_STD", | |
200 | [_IOC_NR(VIDIOC_S_STD)] = "VIDIOC_S_STD", | |
201 | [_IOC_NR(VIDIOC_ENUMSTD)] = "VIDIOC_ENUMSTD", | |
202 | [_IOC_NR(VIDIOC_ENUMINPUT)] = "VIDIOC_ENUMINPUT", | |
203 | [_IOC_NR(VIDIOC_G_CTRL)] = "VIDIOC_G_CTRL", | |
204 | [_IOC_NR(VIDIOC_S_CTRL)] = "VIDIOC_S_CTRL", | |
205 | [_IOC_NR(VIDIOC_G_TUNER)] = "VIDIOC_G_TUNER", | |
206 | [_IOC_NR(VIDIOC_S_TUNER)] = "VIDIOC_S_TUNER", | |
207 | [_IOC_NR(VIDIOC_G_AUDIO)] = "VIDIOC_G_AUDIO", | |
208 | [_IOC_NR(VIDIOC_S_AUDIO)] = "VIDIOC_S_AUDIO", | |
209 | [_IOC_NR(VIDIOC_QUERYCTRL)] = "VIDIOC_QUERYCTRL", | |
210 | [_IOC_NR(VIDIOC_QUERYMENU)] = "VIDIOC_QUERYMENU", | |
211 | [_IOC_NR(VIDIOC_G_INPUT)] = "VIDIOC_G_INPUT", | |
212 | [_IOC_NR(VIDIOC_S_INPUT)] = "VIDIOC_S_INPUT", | |
213 | [_IOC_NR(VIDIOC_G_OUTPUT)] = "VIDIOC_G_OUTPUT", | |
214 | [_IOC_NR(VIDIOC_S_OUTPUT)] = "VIDIOC_S_OUTPUT", | |
215 | [_IOC_NR(VIDIOC_ENUMOUTPUT)] = "VIDIOC_ENUMOUTPUT", | |
216 | [_IOC_NR(VIDIOC_G_AUDOUT)] = "VIDIOC_G_AUDOUT", | |
217 | [_IOC_NR(VIDIOC_S_AUDOUT)] = "VIDIOC_S_AUDOUT", | |
218 | [_IOC_NR(VIDIOC_G_MODULATOR)] = "VIDIOC_G_MODULATOR", | |
219 | [_IOC_NR(VIDIOC_S_MODULATOR)] = "VIDIOC_S_MODULATOR", | |
220 | [_IOC_NR(VIDIOC_G_FREQUENCY)] = "VIDIOC_G_FREQUENCY", | |
221 | [_IOC_NR(VIDIOC_S_FREQUENCY)] = "VIDIOC_S_FREQUENCY", | |
222 | [_IOC_NR(VIDIOC_CROPCAP)] = "VIDIOC_CROPCAP", | |
223 | [_IOC_NR(VIDIOC_G_CROP)] = "VIDIOC_G_CROP", | |
224 | [_IOC_NR(VIDIOC_S_CROP)] = "VIDIOC_S_CROP", | |
225 | [_IOC_NR(VIDIOC_G_JPEGCOMP)] = "VIDIOC_G_JPEGCOMP", | |
226 | [_IOC_NR(VIDIOC_S_JPEGCOMP)] = "VIDIOC_S_JPEGCOMP", | |
227 | [_IOC_NR(VIDIOC_QUERYSTD)] = "VIDIOC_QUERYSTD", | |
228 | [_IOC_NR(VIDIOC_TRY_FMT)] = "VIDIOC_TRY_FMT", | |
229 | [_IOC_NR(VIDIOC_ENUMAUDIO)] = "VIDIOC_ENUMAUDIO", | |
230 | [_IOC_NR(VIDIOC_ENUMAUDOUT)] = "VIDIOC_ENUMAUDOUT", | |
231 | [_IOC_NR(VIDIOC_G_PRIORITY)] = "VIDIOC_G_PRIORITY", | |
232 | [_IOC_NR(VIDIOC_S_PRIORITY)] = "VIDIOC_S_PRIORITY", | |
233 | [_IOC_NR(VIDIOC_G_SLICED_VBI_CAP)] = "VIDIOC_G_SLICED_VBI_CAP", | |
234 | [_IOC_NR(VIDIOC_LOG_STATUS)] = "VIDIOC_LOG_STATUS", | |
235 | [_IOC_NR(VIDIOC_G_EXT_CTRLS)] = "VIDIOC_G_EXT_CTRLS", | |
236 | [_IOC_NR(VIDIOC_S_EXT_CTRLS)] = "VIDIOC_S_EXT_CTRLS", | |
237 | [_IOC_NR(VIDIOC_TRY_EXT_CTRLS)] = "VIDIOC_TRY_EXT_CTRLS", | |
238 | #if 1 | |
239 | [_IOC_NR(VIDIOC_ENUM_FRAMESIZES)] = "VIDIOC_ENUM_FRAMESIZES", | |
240 | [_IOC_NR(VIDIOC_ENUM_FRAMEINTERVALS)] = "VIDIOC_ENUM_FRAMEINTERVALS", | |
241 | [_IOC_NR(VIDIOC_G_ENC_INDEX)] = "VIDIOC_G_ENC_INDEX", | |
242 | [_IOC_NR(VIDIOC_ENCODER_CMD)] = "VIDIOC_ENCODER_CMD", | |
243 | [_IOC_NR(VIDIOC_TRY_ENCODER_CMD)] = "VIDIOC_TRY_ENCODER_CMD", | |
244 | ||
245 | [_IOC_NR(VIDIOC_DBG_S_REGISTER)] = "VIDIOC_DBG_S_REGISTER", | |
246 | [_IOC_NR(VIDIOC_DBG_G_REGISTER)] = "VIDIOC_DBG_G_REGISTER", | |
247 | ||
aecde8b5 | 248 | [_IOC_NR(VIDIOC_DBG_G_CHIP_IDENT)] = "VIDIOC_DBG_G_CHIP_IDENT", |
35ea11ff HV |
249 | [_IOC_NR(VIDIOC_S_HW_FREQ_SEEK)] = "VIDIOC_S_HW_FREQ_SEEK", |
250 | #endif | |
b6456c0c MK |
251 | [_IOC_NR(VIDIOC_ENUM_DV_PRESETS)] = "VIDIOC_ENUM_DV_PRESETS", |
252 | [_IOC_NR(VIDIOC_S_DV_PRESET)] = "VIDIOC_S_DV_PRESET", | |
253 | [_IOC_NR(VIDIOC_G_DV_PRESET)] = "VIDIOC_G_DV_PRESET", | |
254 | [_IOC_NR(VIDIOC_QUERY_DV_PRESET)] = "VIDIOC_QUERY_DV_PRESET", | |
255 | [_IOC_NR(VIDIOC_S_DV_TIMINGS)] = "VIDIOC_S_DV_TIMINGS", | |
256 | [_IOC_NR(VIDIOC_G_DV_TIMINGS)] = "VIDIOC_G_DV_TIMINGS", | |
fda10214 SA |
257 | [_IOC_NR(VIDIOC_DQEVENT)] = "VIDIOC_DQEVENT", |
258 | [_IOC_NR(VIDIOC_SUBSCRIBE_EVENT)] = "VIDIOC_SUBSCRIBE_EVENT", | |
259 | [_IOC_NR(VIDIOC_UNSUBSCRIBE_EVENT)] = "VIDIOC_UNSUBSCRIBE_EVENT", | |
35ea11ff HV |
260 | }; |
261 | #define V4L2_IOCTLS ARRAY_SIZE(v4l2_ioctls) | |
262 | ||
35ea11ff HV |
263 | /* Common ioctl debug function. This function can be used by |
264 | external ioctl messages as well as internal V4L ioctl */ | |
265 | void v4l_printk_ioctl(unsigned int cmd) | |
266 | { | |
267 | char *dir, *type; | |
268 | ||
269 | switch (_IOC_TYPE(cmd)) { | |
270 | case 'd': | |
78a3b4db HV |
271 | type = "v4l2_int"; |
272 | break; | |
35ea11ff HV |
273 | case 'V': |
274 | if (_IOC_NR(cmd) >= V4L2_IOCTLS) { | |
275 | type = "v4l2"; | |
276 | break; | |
277 | } | |
278 | printk("%s", v4l2_ioctls[_IOC_NR(cmd)]); | |
279 | return; | |
280 | default: | |
281 | type = "unknown"; | |
282 | } | |
283 | ||
284 | switch (_IOC_DIR(cmd)) { | |
285 | case _IOC_NONE: dir = "--"; break; | |
286 | case _IOC_READ: dir = "r-"; break; | |
287 | case _IOC_WRITE: dir = "-w"; break; | |
288 | case _IOC_READ | _IOC_WRITE: dir = "rw"; break; | |
289 | default: dir = "*ERR*"; break; | |
290 | } | |
291 | printk("%s ioctl '%c', dir=%s, #%d (0x%08x)", | |
292 | type, _IOC_TYPE(cmd), dir, _IOC_NR(cmd), cmd); | |
293 | } | |
294 | EXPORT_SYMBOL(v4l_printk_ioctl); | |
295 | ||
296 | /* | |
297 | * helper function -- handles userspace copying for ioctl arguments | |
298 | */ | |
299 | ||
300 | #ifdef __OLD_VIDIOC_ | |
301 | static unsigned int | |
302 | video_fix_command(unsigned int cmd) | |
303 | { | |
304 | switch (cmd) { | |
305 | case VIDIOC_OVERLAY_OLD: | |
306 | cmd = VIDIOC_OVERLAY; | |
307 | break; | |
308 | case VIDIOC_S_PARM_OLD: | |
309 | cmd = VIDIOC_S_PARM; | |
310 | break; | |
311 | case VIDIOC_S_CTRL_OLD: | |
312 | cmd = VIDIOC_S_CTRL; | |
313 | break; | |
314 | case VIDIOC_G_AUDIO_OLD: | |
315 | cmd = VIDIOC_G_AUDIO; | |
316 | break; | |
317 | case VIDIOC_G_AUDOUT_OLD: | |
318 | cmd = VIDIOC_G_AUDOUT; | |
319 | break; | |
320 | case VIDIOC_CROPCAP_OLD: | |
321 | cmd = VIDIOC_CROPCAP; | |
322 | break; | |
323 | } | |
324 | return cmd; | |
325 | } | |
326 | #endif | |
327 | ||
328 | /* | |
329 | * Obsolete usercopy function - Should be removed soon | |
330 | */ | |
069b7479 | 331 | long |
f473bf76 HV |
332 | video_usercopy(struct file *file, unsigned int cmd, unsigned long arg, |
333 | v4l2_kioctl func) | |
35ea11ff HV |
334 | { |
335 | char sbuf[128]; | |
336 | void *mbuf = NULL; | |
337 | void *parg = NULL; | |
069b7479 | 338 | long err = -EINVAL; |
35ea11ff HV |
339 | int is_ext_ctrl; |
340 | size_t ctrls_size = 0; | |
341 | void __user *user_ptr = NULL; | |
342 | ||
343 | #ifdef __OLD_VIDIOC_ | |
344 | cmd = video_fix_command(cmd); | |
345 | #endif | |
346 | is_ext_ctrl = (cmd == VIDIOC_S_EXT_CTRLS || cmd == VIDIOC_G_EXT_CTRLS || | |
347 | cmd == VIDIOC_TRY_EXT_CTRLS); | |
348 | ||
349 | /* Copy arguments into temp kernel buffer */ | |
350 | switch (_IOC_DIR(cmd)) { | |
351 | case _IOC_NONE: | |
352 | parg = NULL; | |
353 | break; | |
354 | case _IOC_READ: | |
355 | case _IOC_WRITE: | |
356 | case (_IOC_WRITE | _IOC_READ): | |
357 | if (_IOC_SIZE(cmd) <= sizeof(sbuf)) { | |
358 | parg = sbuf; | |
359 | } else { | |
360 | /* too big to allocate from stack */ | |
361 | mbuf = kmalloc(_IOC_SIZE(cmd), GFP_KERNEL); | |
362 | if (NULL == mbuf) | |
363 | return -ENOMEM; | |
364 | parg = mbuf; | |
365 | } | |
366 | ||
367 | err = -EFAULT; | |
368 | if (_IOC_DIR(cmd) & _IOC_WRITE) | |
369 | if (copy_from_user(parg, (void __user *)arg, _IOC_SIZE(cmd))) | |
370 | goto out; | |
371 | break; | |
372 | } | |
373 | if (is_ext_ctrl) { | |
374 | struct v4l2_ext_controls *p = parg; | |
375 | ||
376 | /* In case of an error, tell the caller that it wasn't | |
377 | a specific control that caused it. */ | |
378 | p->error_idx = p->count; | |
379 | user_ptr = (void __user *)p->controls; | |
380 | if (p->count) { | |
381 | ctrls_size = sizeof(struct v4l2_ext_control) * p->count; | |
382 | /* Note: v4l2_ext_controls fits in sbuf[] so mbuf is still NULL. */ | |
383 | mbuf = kmalloc(ctrls_size, GFP_KERNEL); | |
384 | err = -ENOMEM; | |
385 | if (NULL == mbuf) | |
386 | goto out_ext_ctrl; | |
387 | err = -EFAULT; | |
388 | if (copy_from_user(mbuf, user_ptr, ctrls_size)) | |
389 | goto out_ext_ctrl; | |
390 | p->controls = mbuf; | |
391 | } | |
392 | } | |
393 | ||
394 | /* call driver */ | |
f473bf76 | 395 | err = func(file, cmd, parg); |
35ea11ff HV |
396 | if (err == -ENOIOCTLCMD) |
397 | err = -EINVAL; | |
398 | if (is_ext_ctrl) { | |
399 | struct v4l2_ext_controls *p = parg; | |
400 | ||
401 | p->controls = (void *)user_ptr; | |
402 | if (p->count && err == 0 && copy_to_user(user_ptr, mbuf, ctrls_size)) | |
403 | err = -EFAULT; | |
404 | goto out_ext_ctrl; | |
405 | } | |
406 | if (err < 0) | |
407 | goto out; | |
408 | ||
409 | out_ext_ctrl: | |
410 | /* Copy results into user buffer */ | |
411 | switch (_IOC_DIR(cmd)) { | |
412 | case _IOC_READ: | |
413 | case (_IOC_WRITE | _IOC_READ): | |
414 | if (copy_to_user((void __user *)arg, parg, _IOC_SIZE(cmd))) | |
415 | err = -EFAULT; | |
416 | break; | |
417 | } | |
418 | ||
419 | out: | |
420 | kfree(mbuf); | |
421 | return err; | |
422 | } | |
423 | EXPORT_SYMBOL(video_usercopy); | |
424 | ||
425 | static void dbgbuf(unsigned int cmd, struct video_device *vfd, | |
426 | struct v4l2_buffer *p) | |
427 | { | |
428 | struct v4l2_timecode *tc = &p->timecode; | |
429 | ||
430 | dbgarg(cmd, "%02ld:%02d:%02d.%08ld index=%d, type=%s, " | |
431 | "bytesused=%d, flags=0x%08d, " | |
432 | "field=%0d, sequence=%d, memory=%s, offset/userptr=0x%08lx, length=%d\n", | |
433 | p->timestamp.tv_sec / 3600, | |
434 | (int)(p->timestamp.tv_sec / 60) % 60, | |
435 | (int)(p->timestamp.tv_sec % 60), | |
b045979d | 436 | (long)p->timestamp.tv_usec, |
35ea11ff HV |
437 | p->index, |
438 | prt_names(p->type, v4l2_type_names), | |
439 | p->bytesused, p->flags, | |
440 | p->field, p->sequence, | |
441 | prt_names(p->memory, v4l2_memory_names), | |
442 | p->m.userptr, p->length); | |
443 | dbgarg2("timecode=%02d:%02d:%02d type=%d, " | |
444 | "flags=0x%08d, frames=%d, userbits=0x%08x\n", | |
445 | tc->hours, tc->minutes, tc->seconds, | |
446 | tc->type, tc->flags, tc->frames, *(__u32 *)tc->userbits); | |
447 | } | |
448 | ||
449 | static inline void dbgrect(struct video_device *vfd, char *s, | |
450 | struct v4l2_rect *r) | |
451 | { | |
452 | dbgarg2("%sRect start at %dx%d, size=%dx%d\n", s, r->left, r->top, | |
453 | r->width, r->height); | |
454 | }; | |
455 | ||
456 | static inline void v4l_print_pix_fmt(struct video_device *vfd, | |
457 | struct v4l2_pix_format *fmt) | |
458 | { | |
459 | dbgarg2("width=%d, height=%d, format=%c%c%c%c, field=%s, " | |
460 | "bytesperline=%d sizeimage=%d, colorspace=%d\n", | |
461 | fmt->width, fmt->height, | |
462 | (fmt->pixelformat & 0xff), | |
463 | (fmt->pixelformat >> 8) & 0xff, | |
464 | (fmt->pixelformat >> 16) & 0xff, | |
465 | (fmt->pixelformat >> 24) & 0xff, | |
466 | prt_names(fmt->field, v4l2_field_names), | |
467 | fmt->bytesperline, fmt->sizeimage, fmt->colorspace); | |
468 | }; | |
469 | ||
470 | static inline void v4l_print_ext_ctrls(unsigned int cmd, | |
471 | struct video_device *vfd, struct v4l2_ext_controls *c, int show_vals) | |
472 | { | |
473 | __u32 i; | |
474 | ||
475 | if (!(vfd->debug & V4L2_DEBUG_IOCTL_ARG)) | |
476 | return; | |
477 | dbgarg(cmd, ""); | |
478 | printk(KERN_CONT "class=0x%x", c->ctrl_class); | |
479 | for (i = 0; i < c->count; i++) { | |
6b5a9492 | 480 | if (show_vals && !c->controls[i].size) |
35ea11ff HV |
481 | printk(KERN_CONT " id/val=0x%x/0x%x", |
482 | c->controls[i].id, c->controls[i].value); | |
483 | else | |
6b5a9492 HV |
484 | printk(KERN_CONT " id=0x%x,size=%u", |
485 | c->controls[i].id, c->controls[i].size); | |
35ea11ff HV |
486 | } |
487 | printk(KERN_CONT "\n"); | |
488 | }; | |
489 | ||
490 | static inline int check_ext_ctrls(struct v4l2_ext_controls *c, int allow_priv) | |
491 | { | |
492 | __u32 i; | |
493 | ||
494 | /* zero the reserved fields */ | |
495 | c->reserved[0] = c->reserved[1] = 0; | |
6b5a9492 | 496 | for (i = 0; i < c->count; i++) |
35ea11ff | 497 | c->controls[i].reserved2[0] = 0; |
6b5a9492 | 498 | |
35ea11ff HV |
499 | /* V4L2_CID_PRIVATE_BASE cannot be used as control class |
500 | when using extended controls. | |
501 | Only when passed in through VIDIOC_G_CTRL and VIDIOC_S_CTRL | |
502 | is it allowed for backwards compatibility. | |
503 | */ | |
504 | if (!allow_priv && c->ctrl_class == V4L2_CID_PRIVATE_BASE) | |
505 | return 0; | |
506 | /* Check that all controls are from the same control class. */ | |
507 | for (i = 0; i < c->count; i++) { | |
508 | if (V4L2_CTRL_ID2CLASS(c->controls[i].id) != c->ctrl_class) { | |
509 | c->error_idx = i; | |
510 | return 0; | |
511 | } | |
512 | } | |
513 | return 1; | |
514 | } | |
515 | ||
a399810c | 516 | static int check_fmt(const struct v4l2_ioctl_ops *ops, enum v4l2_buf_type type) |
35ea11ff | 517 | { |
a399810c HV |
518 | if (ops == NULL) |
519 | return -EINVAL; | |
520 | ||
35ea11ff HV |
521 | switch (type) { |
522 | case V4L2_BUF_TYPE_VIDEO_CAPTURE: | |
1175d613 | 523 | if (ops->vidioc_g_fmt_vid_cap) |
35ea11ff HV |
524 | return 0; |
525 | break; | |
526 | case V4L2_BUF_TYPE_VIDEO_OVERLAY: | |
1175d613 | 527 | if (ops->vidioc_g_fmt_vid_overlay) |
35ea11ff HV |
528 | return 0; |
529 | break; | |
530 | case V4L2_BUF_TYPE_VIDEO_OUTPUT: | |
1175d613 | 531 | if (ops->vidioc_g_fmt_vid_out) |
35ea11ff HV |
532 | return 0; |
533 | break; | |
534 | case V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY: | |
1175d613 | 535 | if (ops->vidioc_g_fmt_vid_out_overlay) |
35ea11ff HV |
536 | return 0; |
537 | break; | |
538 | case V4L2_BUF_TYPE_VBI_CAPTURE: | |
1175d613 | 539 | if (ops->vidioc_g_fmt_vbi_cap) |
35ea11ff HV |
540 | return 0; |
541 | break; | |
542 | case V4L2_BUF_TYPE_VBI_OUTPUT: | |
1175d613 | 543 | if (ops->vidioc_g_fmt_vbi_out) |
35ea11ff HV |
544 | return 0; |
545 | break; | |
546 | case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE: | |
1175d613 | 547 | if (ops->vidioc_g_fmt_sliced_vbi_cap) |
35ea11ff HV |
548 | return 0; |
549 | break; | |
550 | case V4L2_BUF_TYPE_SLICED_VBI_OUTPUT: | |
1175d613 | 551 | if (ops->vidioc_g_fmt_sliced_vbi_out) |
35ea11ff HV |
552 | return 0; |
553 | break; | |
554 | case V4L2_BUF_TYPE_PRIVATE: | |
1175d613 | 555 | if (ops->vidioc_g_fmt_type_private) |
35ea11ff HV |
556 | return 0; |
557 | break; | |
558 | } | |
559 | return -EINVAL; | |
560 | } | |
561 | ||
069b7479 | 562 | static long __video_do_ioctl(struct file *file, |
35ea11ff HV |
563 | unsigned int cmd, void *arg) |
564 | { | |
565 | struct video_device *vfd = video_devdata(file); | |
a399810c | 566 | const struct v4l2_ioctl_ops *ops = vfd->ioctl_ops; |
d5fbf32f | 567 | void *fh = file->private_data; |
069b7479 | 568 | long ret = -EINVAL; |
35ea11ff | 569 | |
6a717883 HV |
570 | if (ops == NULL) { |
571 | printk(KERN_WARNING "videodev: \"%s\" has no ioctl_ops.\n", | |
572 | vfd->name); | |
573 | return -EINVAL; | |
574 | } | |
575 | ||
35ea11ff HV |
576 | if ((vfd->debug & V4L2_DEBUG_IOCTL) && |
577 | !(vfd->debug & V4L2_DEBUG_IOCTL_ARG)) { | |
578 | v4l_print_ioctl(vfd->name, cmd); | |
579 | printk(KERN_CONT "\n"); | |
580 | } | |
581 | ||
6a717883 | 582 | switch (cmd) { |
a399810c | 583 | |
35ea11ff HV |
584 | /* --- capabilities ------------------------------------------ */ |
585 | case VIDIOC_QUERYCAP: | |
586 | { | |
587 | struct v4l2_capability *cap = (struct v4l2_capability *)arg; | |
35ea11ff | 588 | |
a399810c | 589 | if (!ops->vidioc_querycap) |
35ea11ff HV |
590 | break; |
591 | ||
a399810c | 592 | ret = ops->vidioc_querycap(file, fh, cap); |
35ea11ff HV |
593 | if (!ret) |
594 | dbgarg(cmd, "driver=%s, card=%s, bus=%s, " | |
595 | "version=0x%08x, " | |
596 | "capabilities=0x%08x\n", | |
597 | cap->driver, cap->card, cap->bus_info, | |
598 | cap->version, | |
599 | cap->capabilities); | |
600 | break; | |
601 | } | |
602 | ||
603 | /* --- priority ------------------------------------------ */ | |
604 | case VIDIOC_G_PRIORITY: | |
605 | { | |
606 | enum v4l2_priority *p = arg; | |
607 | ||
a399810c | 608 | if (!ops->vidioc_g_priority) |
35ea11ff | 609 | break; |
a399810c | 610 | ret = ops->vidioc_g_priority(file, fh, p); |
35ea11ff HV |
611 | if (!ret) |
612 | dbgarg(cmd, "priority is %d\n", *p); | |
613 | break; | |
614 | } | |
615 | case VIDIOC_S_PRIORITY: | |
616 | { | |
617 | enum v4l2_priority *p = arg; | |
618 | ||
a399810c | 619 | if (!ops->vidioc_s_priority) |
35ea11ff HV |
620 | break; |
621 | dbgarg(cmd, "setting priority to %d\n", *p); | |
a399810c | 622 | ret = ops->vidioc_s_priority(file, fh, *p); |
35ea11ff HV |
623 | break; |
624 | } | |
625 | ||
626 | /* --- capture ioctls ---------------------------------------- */ | |
627 | case VIDIOC_ENUM_FMT: | |
628 | { | |
629 | struct v4l2_fmtdesc *f = arg; | |
35ea11ff | 630 | |
19c96e4b | 631 | switch (f->type) { |
35ea11ff | 632 | case V4L2_BUF_TYPE_VIDEO_CAPTURE: |
a399810c HV |
633 | if (ops->vidioc_enum_fmt_vid_cap) |
634 | ret = ops->vidioc_enum_fmt_vid_cap(file, fh, f); | |
35ea11ff HV |
635 | break; |
636 | case V4L2_BUF_TYPE_VIDEO_OVERLAY: | |
a399810c HV |
637 | if (ops->vidioc_enum_fmt_vid_overlay) |
638 | ret = ops->vidioc_enum_fmt_vid_overlay(file, | |
35ea11ff HV |
639 | fh, f); |
640 | break; | |
35ea11ff | 641 | case V4L2_BUF_TYPE_VIDEO_OUTPUT: |
a399810c HV |
642 | if (ops->vidioc_enum_fmt_vid_out) |
643 | ret = ops->vidioc_enum_fmt_vid_out(file, fh, f); | |
35ea11ff HV |
644 | break; |
645 | case V4L2_BUF_TYPE_PRIVATE: | |
a399810c HV |
646 | if (ops->vidioc_enum_fmt_type_private) |
647 | ret = ops->vidioc_enum_fmt_type_private(file, | |
35ea11ff HV |
648 | fh, f); |
649 | break; | |
650 | default: | |
651 | break; | |
652 | } | |
653 | if (!ret) | |
654 | dbgarg(cmd, "index=%d, type=%d, flags=%d, " | |
655 | "pixelformat=%c%c%c%c, description='%s'\n", | |
656 | f->index, f->type, f->flags, | |
657 | (f->pixelformat & 0xff), | |
658 | (f->pixelformat >> 8) & 0xff, | |
659 | (f->pixelformat >> 16) & 0xff, | |
660 | (f->pixelformat >> 24) & 0xff, | |
661 | f->description); | |
662 | break; | |
663 | } | |
664 | case VIDIOC_G_FMT: | |
665 | { | |
666 | struct v4l2_format *f = (struct v4l2_format *)arg; | |
667 | ||
35ea11ff HV |
668 | /* FIXME: Should be one dump per type */ |
669 | dbgarg(cmd, "type=%s\n", prt_names(f->type, v4l2_type_names)); | |
670 | ||
671 | switch (f->type) { | |
672 | case V4L2_BUF_TYPE_VIDEO_CAPTURE: | |
a399810c HV |
673 | if (ops->vidioc_g_fmt_vid_cap) |
674 | ret = ops->vidioc_g_fmt_vid_cap(file, fh, f); | |
35ea11ff HV |
675 | if (!ret) |
676 | v4l_print_pix_fmt(vfd, &f->fmt.pix); | |
677 | break; | |
678 | case V4L2_BUF_TYPE_VIDEO_OVERLAY: | |
a399810c HV |
679 | if (ops->vidioc_g_fmt_vid_overlay) |
680 | ret = ops->vidioc_g_fmt_vid_overlay(file, | |
35ea11ff HV |
681 | fh, f); |
682 | break; | |
683 | case V4L2_BUF_TYPE_VIDEO_OUTPUT: | |
a399810c HV |
684 | if (ops->vidioc_g_fmt_vid_out) |
685 | ret = ops->vidioc_g_fmt_vid_out(file, fh, f); | |
35ea11ff HV |
686 | if (!ret) |
687 | v4l_print_pix_fmt(vfd, &f->fmt.pix); | |
688 | break; | |
689 | case V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY: | |
a399810c HV |
690 | if (ops->vidioc_g_fmt_vid_out_overlay) |
691 | ret = ops->vidioc_g_fmt_vid_out_overlay(file, | |
35ea11ff HV |
692 | fh, f); |
693 | break; | |
694 | case V4L2_BUF_TYPE_VBI_CAPTURE: | |
a399810c HV |
695 | if (ops->vidioc_g_fmt_vbi_cap) |
696 | ret = ops->vidioc_g_fmt_vbi_cap(file, fh, f); | |
35ea11ff HV |
697 | break; |
698 | case V4L2_BUF_TYPE_VBI_OUTPUT: | |
a399810c HV |
699 | if (ops->vidioc_g_fmt_vbi_out) |
700 | ret = ops->vidioc_g_fmt_vbi_out(file, fh, f); | |
35ea11ff HV |
701 | break; |
702 | case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE: | |
a399810c HV |
703 | if (ops->vidioc_g_fmt_sliced_vbi_cap) |
704 | ret = ops->vidioc_g_fmt_sliced_vbi_cap(file, | |
35ea11ff HV |
705 | fh, f); |
706 | break; | |
707 | case V4L2_BUF_TYPE_SLICED_VBI_OUTPUT: | |
a399810c HV |
708 | if (ops->vidioc_g_fmt_sliced_vbi_out) |
709 | ret = ops->vidioc_g_fmt_sliced_vbi_out(file, | |
35ea11ff HV |
710 | fh, f); |
711 | break; | |
712 | case V4L2_BUF_TYPE_PRIVATE: | |
a399810c HV |
713 | if (ops->vidioc_g_fmt_type_private) |
714 | ret = ops->vidioc_g_fmt_type_private(file, | |
35ea11ff HV |
715 | fh, f); |
716 | break; | |
717 | } | |
718 | ||
719 | break; | |
720 | } | |
721 | case VIDIOC_S_FMT: | |
722 | { | |
723 | struct v4l2_format *f = (struct v4l2_format *)arg; | |
724 | ||
725 | /* FIXME: Should be one dump per type */ | |
726 | dbgarg(cmd, "type=%s\n", prt_names(f->type, v4l2_type_names)); | |
727 | ||
728 | switch (f->type) { | |
729 | case V4L2_BUF_TYPE_VIDEO_CAPTURE: | |
7ecc0cf9 | 730 | CLEAR_AFTER_FIELD(f, fmt.pix); |
35ea11ff | 731 | v4l_print_pix_fmt(vfd, &f->fmt.pix); |
a399810c HV |
732 | if (ops->vidioc_s_fmt_vid_cap) |
733 | ret = ops->vidioc_s_fmt_vid_cap(file, fh, f); | |
35ea11ff HV |
734 | break; |
735 | case V4L2_BUF_TYPE_VIDEO_OVERLAY: | |
7ecc0cf9 | 736 | CLEAR_AFTER_FIELD(f, fmt.win); |
a399810c HV |
737 | if (ops->vidioc_s_fmt_vid_overlay) |
738 | ret = ops->vidioc_s_fmt_vid_overlay(file, | |
35ea11ff HV |
739 | fh, f); |
740 | break; | |
741 | case V4L2_BUF_TYPE_VIDEO_OUTPUT: | |
7ecc0cf9 | 742 | CLEAR_AFTER_FIELD(f, fmt.pix); |
35ea11ff | 743 | v4l_print_pix_fmt(vfd, &f->fmt.pix); |
a399810c HV |
744 | if (ops->vidioc_s_fmt_vid_out) |
745 | ret = ops->vidioc_s_fmt_vid_out(file, fh, f); | |
35ea11ff HV |
746 | break; |
747 | case V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY: | |
7ecc0cf9 | 748 | CLEAR_AFTER_FIELD(f, fmt.win); |
a399810c HV |
749 | if (ops->vidioc_s_fmt_vid_out_overlay) |
750 | ret = ops->vidioc_s_fmt_vid_out_overlay(file, | |
35ea11ff HV |
751 | fh, f); |
752 | break; | |
753 | case V4L2_BUF_TYPE_VBI_CAPTURE: | |
7ecc0cf9 | 754 | CLEAR_AFTER_FIELD(f, fmt.vbi); |
a399810c HV |
755 | if (ops->vidioc_s_fmt_vbi_cap) |
756 | ret = ops->vidioc_s_fmt_vbi_cap(file, fh, f); | |
35ea11ff HV |
757 | break; |
758 | case V4L2_BUF_TYPE_VBI_OUTPUT: | |
7ecc0cf9 | 759 | CLEAR_AFTER_FIELD(f, fmt.vbi); |
a399810c HV |
760 | if (ops->vidioc_s_fmt_vbi_out) |
761 | ret = ops->vidioc_s_fmt_vbi_out(file, fh, f); | |
35ea11ff HV |
762 | break; |
763 | case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE: | |
7ecc0cf9 | 764 | CLEAR_AFTER_FIELD(f, fmt.sliced); |
a399810c HV |
765 | if (ops->vidioc_s_fmt_sliced_vbi_cap) |
766 | ret = ops->vidioc_s_fmt_sliced_vbi_cap(file, | |
35ea11ff HV |
767 | fh, f); |
768 | break; | |
769 | case V4L2_BUF_TYPE_SLICED_VBI_OUTPUT: | |
7ecc0cf9 | 770 | CLEAR_AFTER_FIELD(f, fmt.sliced); |
a399810c HV |
771 | if (ops->vidioc_s_fmt_sliced_vbi_out) |
772 | ret = ops->vidioc_s_fmt_sliced_vbi_out(file, | |
35ea11ff HV |
773 | fh, f); |
774 | break; | |
775 | case V4L2_BUF_TYPE_PRIVATE: | |
7ecc0cf9 | 776 | /* CLEAR_AFTER_FIELD(f, fmt.raw_data); <- does nothing */ |
a399810c HV |
777 | if (ops->vidioc_s_fmt_type_private) |
778 | ret = ops->vidioc_s_fmt_type_private(file, | |
35ea11ff HV |
779 | fh, f); |
780 | break; | |
781 | } | |
782 | break; | |
783 | } | |
784 | case VIDIOC_TRY_FMT: | |
785 | { | |
786 | struct v4l2_format *f = (struct v4l2_format *)arg; | |
787 | ||
788 | /* FIXME: Should be one dump per type */ | |
789 | dbgarg(cmd, "type=%s\n", prt_names(f->type, | |
790 | v4l2_type_names)); | |
791 | switch (f->type) { | |
792 | case V4L2_BUF_TYPE_VIDEO_CAPTURE: | |
7ecc0cf9 | 793 | CLEAR_AFTER_FIELD(f, fmt.pix); |
a399810c HV |
794 | if (ops->vidioc_try_fmt_vid_cap) |
795 | ret = ops->vidioc_try_fmt_vid_cap(file, fh, f); | |
35ea11ff HV |
796 | if (!ret) |
797 | v4l_print_pix_fmt(vfd, &f->fmt.pix); | |
798 | break; | |
799 | case V4L2_BUF_TYPE_VIDEO_OVERLAY: | |
7ecc0cf9 | 800 | CLEAR_AFTER_FIELD(f, fmt.win); |
a399810c HV |
801 | if (ops->vidioc_try_fmt_vid_overlay) |
802 | ret = ops->vidioc_try_fmt_vid_overlay(file, | |
35ea11ff HV |
803 | fh, f); |
804 | break; | |
805 | case V4L2_BUF_TYPE_VIDEO_OUTPUT: | |
7ecc0cf9 | 806 | CLEAR_AFTER_FIELD(f, fmt.pix); |
a399810c HV |
807 | if (ops->vidioc_try_fmt_vid_out) |
808 | ret = ops->vidioc_try_fmt_vid_out(file, fh, f); | |
35ea11ff HV |
809 | if (!ret) |
810 | v4l_print_pix_fmt(vfd, &f->fmt.pix); | |
811 | break; | |
812 | case V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY: | |
7ecc0cf9 | 813 | CLEAR_AFTER_FIELD(f, fmt.win); |
a399810c HV |
814 | if (ops->vidioc_try_fmt_vid_out_overlay) |
815 | ret = ops->vidioc_try_fmt_vid_out_overlay(file, | |
35ea11ff HV |
816 | fh, f); |
817 | break; | |
818 | case V4L2_BUF_TYPE_VBI_CAPTURE: | |
7ecc0cf9 | 819 | CLEAR_AFTER_FIELD(f, fmt.vbi); |
a399810c HV |
820 | if (ops->vidioc_try_fmt_vbi_cap) |
821 | ret = ops->vidioc_try_fmt_vbi_cap(file, fh, f); | |
35ea11ff HV |
822 | break; |
823 | case V4L2_BUF_TYPE_VBI_OUTPUT: | |
7ecc0cf9 | 824 | CLEAR_AFTER_FIELD(f, fmt.vbi); |
a399810c HV |
825 | if (ops->vidioc_try_fmt_vbi_out) |
826 | ret = ops->vidioc_try_fmt_vbi_out(file, fh, f); | |
35ea11ff HV |
827 | break; |
828 | case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE: | |
7ecc0cf9 | 829 | CLEAR_AFTER_FIELD(f, fmt.sliced); |
a399810c HV |
830 | if (ops->vidioc_try_fmt_sliced_vbi_cap) |
831 | ret = ops->vidioc_try_fmt_sliced_vbi_cap(file, | |
35ea11ff HV |
832 | fh, f); |
833 | break; | |
834 | case V4L2_BUF_TYPE_SLICED_VBI_OUTPUT: | |
7ecc0cf9 | 835 | CLEAR_AFTER_FIELD(f, fmt.sliced); |
a399810c HV |
836 | if (ops->vidioc_try_fmt_sliced_vbi_out) |
837 | ret = ops->vidioc_try_fmt_sliced_vbi_out(file, | |
35ea11ff HV |
838 | fh, f); |
839 | break; | |
840 | case V4L2_BUF_TYPE_PRIVATE: | |
7ecc0cf9 | 841 | /* CLEAR_AFTER_FIELD(f, fmt.raw_data); <- does nothing */ |
a399810c HV |
842 | if (ops->vidioc_try_fmt_type_private) |
843 | ret = ops->vidioc_try_fmt_type_private(file, | |
35ea11ff HV |
844 | fh, f); |
845 | break; | |
846 | } | |
847 | ||
848 | break; | |
849 | } | |
850 | /* FIXME: Those buf reqs could be handled here, | |
851 | with some changes on videobuf to allow its header to be included at | |
852 | videodev2.h or being merged at videodev2. | |
853 | */ | |
854 | case VIDIOC_REQBUFS: | |
855 | { | |
856 | struct v4l2_requestbuffers *p = arg; | |
857 | ||
a399810c | 858 | if (!ops->vidioc_reqbufs) |
35ea11ff | 859 | break; |
a399810c | 860 | ret = check_fmt(ops, p->type); |
35ea11ff HV |
861 | if (ret) |
862 | break; | |
863 | ||
7ecc0cf9 TP |
864 | if (p->type < V4L2_BUF_TYPE_PRIVATE) |
865 | CLEAR_AFTER_FIELD(p, memory); | |
866 | ||
a399810c | 867 | ret = ops->vidioc_reqbufs(file, fh, p); |
35ea11ff HV |
868 | dbgarg(cmd, "count=%d, type=%s, memory=%s\n", |
869 | p->count, | |
870 | prt_names(p->type, v4l2_type_names), | |
871 | prt_names(p->memory, v4l2_memory_names)); | |
872 | break; | |
873 | } | |
874 | case VIDIOC_QUERYBUF: | |
875 | { | |
876 | struct v4l2_buffer *p = arg; | |
877 | ||
a399810c | 878 | if (!ops->vidioc_querybuf) |
35ea11ff | 879 | break; |
a399810c | 880 | ret = check_fmt(ops, p->type); |
35ea11ff HV |
881 | if (ret) |
882 | break; | |
883 | ||
a399810c | 884 | ret = ops->vidioc_querybuf(file, fh, p); |
35ea11ff HV |
885 | if (!ret) |
886 | dbgbuf(cmd, vfd, p); | |
887 | break; | |
888 | } | |
889 | case VIDIOC_QBUF: | |
890 | { | |
891 | struct v4l2_buffer *p = arg; | |
892 | ||
a399810c | 893 | if (!ops->vidioc_qbuf) |
35ea11ff | 894 | break; |
a399810c | 895 | ret = check_fmt(ops, p->type); |
35ea11ff HV |
896 | if (ret) |
897 | break; | |
898 | ||
a399810c | 899 | ret = ops->vidioc_qbuf(file, fh, p); |
35ea11ff HV |
900 | if (!ret) |
901 | dbgbuf(cmd, vfd, p); | |
902 | break; | |
903 | } | |
904 | case VIDIOC_DQBUF: | |
905 | { | |
906 | struct v4l2_buffer *p = arg; | |
907 | ||
a399810c | 908 | if (!ops->vidioc_dqbuf) |
35ea11ff | 909 | break; |
a399810c | 910 | ret = check_fmt(ops, p->type); |
35ea11ff HV |
911 | if (ret) |
912 | break; | |
913 | ||
a399810c | 914 | ret = ops->vidioc_dqbuf(file, fh, p); |
35ea11ff HV |
915 | if (!ret) |
916 | dbgbuf(cmd, vfd, p); | |
917 | break; | |
918 | } | |
919 | case VIDIOC_OVERLAY: | |
920 | { | |
921 | int *i = arg; | |
922 | ||
a399810c | 923 | if (!ops->vidioc_overlay) |
35ea11ff HV |
924 | break; |
925 | dbgarg(cmd, "value=%d\n", *i); | |
a399810c | 926 | ret = ops->vidioc_overlay(file, fh, *i); |
35ea11ff HV |
927 | break; |
928 | } | |
929 | case VIDIOC_G_FBUF: | |
930 | { | |
931 | struct v4l2_framebuffer *p = arg; | |
932 | ||
a399810c | 933 | if (!ops->vidioc_g_fbuf) |
35ea11ff | 934 | break; |
a399810c | 935 | ret = ops->vidioc_g_fbuf(file, fh, arg); |
35ea11ff HV |
936 | if (!ret) { |
937 | dbgarg(cmd, "capability=0x%x, flags=%d, base=0x%08lx\n", | |
938 | p->capability, p->flags, | |
939 | (unsigned long)p->base); | |
940 | v4l_print_pix_fmt(vfd, &p->fmt); | |
941 | } | |
942 | break; | |
943 | } | |
944 | case VIDIOC_S_FBUF: | |
945 | { | |
946 | struct v4l2_framebuffer *p = arg; | |
947 | ||
a399810c | 948 | if (!ops->vidioc_s_fbuf) |
35ea11ff HV |
949 | break; |
950 | dbgarg(cmd, "capability=0x%x, flags=%d, base=0x%08lx\n", | |
951 | p->capability, p->flags, (unsigned long)p->base); | |
952 | v4l_print_pix_fmt(vfd, &p->fmt); | |
a399810c | 953 | ret = ops->vidioc_s_fbuf(file, fh, arg); |
35ea11ff HV |
954 | break; |
955 | } | |
956 | case VIDIOC_STREAMON: | |
957 | { | |
958 | enum v4l2_buf_type i = *(int *)arg; | |
959 | ||
a399810c | 960 | if (!ops->vidioc_streamon) |
35ea11ff HV |
961 | break; |
962 | dbgarg(cmd, "type=%s\n", prt_names(i, v4l2_type_names)); | |
a399810c | 963 | ret = ops->vidioc_streamon(file, fh, i); |
35ea11ff HV |
964 | break; |
965 | } | |
966 | case VIDIOC_STREAMOFF: | |
967 | { | |
968 | enum v4l2_buf_type i = *(int *)arg; | |
969 | ||
a399810c | 970 | if (!ops->vidioc_streamoff) |
35ea11ff HV |
971 | break; |
972 | dbgarg(cmd, "type=%s\n", prt_names(i, v4l2_type_names)); | |
a399810c | 973 | ret = ops->vidioc_streamoff(file, fh, i); |
35ea11ff HV |
974 | break; |
975 | } | |
976 | /* ---------- tv norms ---------- */ | |
977 | case VIDIOC_ENUMSTD: | |
978 | { | |
979 | struct v4l2_standard *p = arg; | |
980 | v4l2_std_id id = vfd->tvnorms, curr_id = 0; | |
981 | unsigned int index = p->index, i, j = 0; | |
982 | const char *descr = ""; | |
983 | ||
984 | /* Return norm array in a canonical way */ | |
985 | for (i = 0; i <= index && id; i++) { | |
986 | /* last std value in the standards array is 0, so this | |
987 | while always ends there since (id & 0) == 0. */ | |
988 | while ((id & standards[j].std) != standards[j].std) | |
989 | j++; | |
990 | curr_id = standards[j].std; | |
991 | descr = standards[j].descr; | |
992 | j++; | |
993 | if (curr_id == 0) | |
994 | break; | |
995 | if (curr_id != V4L2_STD_PAL && | |
996 | curr_id != V4L2_STD_SECAM && | |
997 | curr_id != V4L2_STD_NTSC) | |
998 | id &= ~curr_id; | |
999 | } | |
1000 | if (i <= index) | |
3f5e1824 | 1001 | break; |
35ea11ff HV |
1002 | |
1003 | v4l2_video_std_construct(p, curr_id, descr); | |
35ea11ff HV |
1004 | |
1005 | dbgarg(cmd, "index=%d, id=0x%Lx, name=%s, fps=%d/%d, " | |
1006 | "framelines=%d\n", p->index, | |
1007 | (unsigned long long)p->id, p->name, | |
1008 | p->frameperiod.numerator, | |
1009 | p->frameperiod.denominator, | |
1010 | p->framelines); | |
1011 | ||
1012 | ret = 0; | |
1013 | break; | |
1014 | } | |
1015 | case VIDIOC_G_STD: | |
1016 | { | |
1017 | v4l2_std_id *id = arg; | |
1018 | ||
1019 | ret = 0; | |
1020 | /* Calls the specific handler */ | |
a399810c HV |
1021 | if (ops->vidioc_g_std) |
1022 | ret = ops->vidioc_g_std(file, fh, id); | |
9bedc7f7 | 1023 | else if (vfd->current_norm) |
35ea11ff | 1024 | *id = vfd->current_norm; |
9bedc7f7 HV |
1025 | else |
1026 | ret = -EINVAL; | |
35ea11ff HV |
1027 | |
1028 | if (!ret) | |
1029 | dbgarg(cmd, "std=0x%08Lx\n", (long long unsigned)*id); | |
1030 | break; | |
1031 | } | |
1032 | case VIDIOC_S_STD: | |
1033 | { | |
1034 | v4l2_std_id *id = arg, norm; | |
1035 | ||
1036 | dbgarg(cmd, "std=%08Lx\n", (long long unsigned)*id); | |
1037 | ||
1038 | norm = (*id) & vfd->tvnorms; | |
1039 | if (vfd->tvnorms && !norm) /* Check if std is supported */ | |
1040 | break; | |
1041 | ||
1042 | /* Calls the specific handler */ | |
a399810c HV |
1043 | if (ops->vidioc_s_std) |
1044 | ret = ops->vidioc_s_std(file, fh, &norm); | |
35ea11ff HV |
1045 | else |
1046 | ret = -EINVAL; | |
1047 | ||
1048 | /* Updates standard information */ | |
1049 | if (ret >= 0) | |
1050 | vfd->current_norm = norm; | |
1051 | break; | |
1052 | } | |
1053 | case VIDIOC_QUERYSTD: | |
1054 | { | |
1055 | v4l2_std_id *p = arg; | |
1056 | ||
a399810c | 1057 | if (!ops->vidioc_querystd) |
35ea11ff | 1058 | break; |
a399810c | 1059 | ret = ops->vidioc_querystd(file, fh, arg); |
35ea11ff HV |
1060 | if (!ret) |
1061 | dbgarg(cmd, "detected std=%08Lx\n", | |
1062 | (unsigned long long)*p); | |
1063 | break; | |
1064 | } | |
1065 | /* ------ input switching ---------- */ | |
1066 | /* FIXME: Inputs can be handled inside videodev2 */ | |
1067 | case VIDIOC_ENUMINPUT: | |
1068 | { | |
1069 | struct v4l2_input *p = arg; | |
35ea11ff | 1070 | |
b6456c0c MK |
1071 | /* |
1072 | * We set the flags for CAP_PRESETS, CAP_CUSTOM_TIMINGS & | |
1073 | * CAP_STD here based on ioctl handler provided by the | |
1074 | * driver. If the driver doesn't support these | |
1075 | * for a specific input, it must override these flags. | |
1076 | */ | |
1077 | if (ops->vidioc_s_std) | |
1078 | p->capabilities |= V4L2_IN_CAP_STD; | |
1079 | if (ops->vidioc_s_dv_preset) | |
1080 | p->capabilities |= V4L2_IN_CAP_PRESETS; | |
1081 | if (ops->vidioc_s_dv_timings) | |
1082 | p->capabilities |= V4L2_IN_CAP_CUSTOM_TIMINGS; | |
1083 | ||
a399810c | 1084 | if (!ops->vidioc_enum_input) |
35ea11ff | 1085 | break; |
35ea11ff | 1086 | |
a399810c | 1087 | ret = ops->vidioc_enum_input(file, fh, p); |
35ea11ff HV |
1088 | if (!ret) |
1089 | dbgarg(cmd, "index=%d, name=%s, type=%d, " | |
1090 | "audioset=%d, " | |
1091 | "tuner=%d, std=%08Lx, status=%d\n", | |
1092 | p->index, p->name, p->type, p->audioset, | |
1093 | p->tuner, | |
1094 | (unsigned long long)p->std, | |
1095 | p->status); | |
1096 | break; | |
1097 | } | |
1098 | case VIDIOC_G_INPUT: | |
1099 | { | |
1100 | unsigned int *i = arg; | |
1101 | ||
a399810c | 1102 | if (!ops->vidioc_g_input) |
35ea11ff | 1103 | break; |
a399810c | 1104 | ret = ops->vidioc_g_input(file, fh, i); |
35ea11ff HV |
1105 | if (!ret) |
1106 | dbgarg(cmd, "value=%d\n", *i); | |
1107 | break; | |
1108 | } | |
1109 | case VIDIOC_S_INPUT: | |
1110 | { | |
1111 | unsigned int *i = arg; | |
1112 | ||
a399810c | 1113 | if (!ops->vidioc_s_input) |
35ea11ff HV |
1114 | break; |
1115 | dbgarg(cmd, "value=%d\n", *i); | |
a399810c | 1116 | ret = ops->vidioc_s_input(file, fh, *i); |
35ea11ff HV |
1117 | break; |
1118 | } | |
1119 | ||
1120 | /* ------ output switching ---------- */ | |
1121 | case VIDIOC_ENUMOUTPUT: | |
1122 | { | |
1123 | struct v4l2_output *p = arg; | |
35ea11ff | 1124 | |
a399810c | 1125 | if (!ops->vidioc_enum_output) |
35ea11ff | 1126 | break; |
35ea11ff | 1127 | |
b6456c0c MK |
1128 | /* |
1129 | * We set the flags for CAP_PRESETS, CAP_CUSTOM_TIMINGS & | |
1130 | * CAP_STD here based on ioctl handler provided by the | |
1131 | * driver. If the driver doesn't support these | |
1132 | * for a specific output, it must override these flags. | |
1133 | */ | |
1134 | if (ops->vidioc_s_std) | |
1135 | p->capabilities |= V4L2_OUT_CAP_STD; | |
1136 | if (ops->vidioc_s_dv_preset) | |
1137 | p->capabilities |= V4L2_OUT_CAP_PRESETS; | |
1138 | if (ops->vidioc_s_dv_timings) | |
1139 | p->capabilities |= V4L2_OUT_CAP_CUSTOM_TIMINGS; | |
1140 | ||
a399810c | 1141 | ret = ops->vidioc_enum_output(file, fh, p); |
35ea11ff HV |
1142 | if (!ret) |
1143 | dbgarg(cmd, "index=%d, name=%s, type=%d, " | |
1144 | "audioset=0x%x, " | |
1145 | "modulator=%d, std=0x%08Lx\n", | |
1146 | p->index, p->name, p->type, p->audioset, | |
1147 | p->modulator, (unsigned long long)p->std); | |
1148 | break; | |
1149 | } | |
1150 | case VIDIOC_G_OUTPUT: | |
1151 | { | |
1152 | unsigned int *i = arg; | |
1153 | ||
a399810c | 1154 | if (!ops->vidioc_g_output) |
35ea11ff | 1155 | break; |
a399810c | 1156 | ret = ops->vidioc_g_output(file, fh, i); |
35ea11ff HV |
1157 | if (!ret) |
1158 | dbgarg(cmd, "value=%d\n", *i); | |
1159 | break; | |
1160 | } | |
1161 | case VIDIOC_S_OUTPUT: | |
1162 | { | |
1163 | unsigned int *i = arg; | |
1164 | ||
a399810c | 1165 | if (!ops->vidioc_s_output) |
35ea11ff HV |
1166 | break; |
1167 | dbgarg(cmd, "value=%d\n", *i); | |
a399810c | 1168 | ret = ops->vidioc_s_output(file, fh, *i); |
35ea11ff HV |
1169 | break; |
1170 | } | |
1171 | ||
1172 | /* --- controls ---------------------------------------------- */ | |
1173 | case VIDIOC_QUERYCTRL: | |
1174 | { | |
1175 | struct v4l2_queryctrl *p = arg; | |
1176 | ||
11bbc1ca HV |
1177 | if (vfd->ctrl_handler) |
1178 | ret = v4l2_queryctrl(vfd->ctrl_handler, p); | |
1179 | else if (ops->vidioc_queryctrl) | |
1180 | ret = ops->vidioc_queryctrl(file, fh, p); | |
1181 | else | |
35ea11ff | 1182 | break; |
35ea11ff HV |
1183 | if (!ret) |
1184 | dbgarg(cmd, "id=0x%x, type=%d, name=%s, min/max=%d/%d, " | |
1185 | "step=%d, default=%d, flags=0x%08x\n", | |
1186 | p->id, p->type, p->name, | |
1187 | p->minimum, p->maximum, | |
1188 | p->step, p->default_value, p->flags); | |
1189 | else | |
1190 | dbgarg(cmd, "id=0x%x\n", p->id); | |
1191 | break; | |
1192 | } | |
1193 | case VIDIOC_G_CTRL: | |
1194 | { | |
1195 | struct v4l2_control *p = arg; | |
1196 | ||
11bbc1ca HV |
1197 | if (vfd->ctrl_handler) |
1198 | ret = v4l2_g_ctrl(vfd->ctrl_handler, p); | |
1199 | else if (ops->vidioc_g_ctrl) | |
a399810c HV |
1200 | ret = ops->vidioc_g_ctrl(file, fh, p); |
1201 | else if (ops->vidioc_g_ext_ctrls) { | |
35ea11ff HV |
1202 | struct v4l2_ext_controls ctrls; |
1203 | struct v4l2_ext_control ctrl; | |
1204 | ||
1205 | ctrls.ctrl_class = V4L2_CTRL_ID2CLASS(p->id); | |
1206 | ctrls.count = 1; | |
1207 | ctrls.controls = &ctrl; | |
1208 | ctrl.id = p->id; | |
1209 | ctrl.value = p->value; | |
1210 | if (check_ext_ctrls(&ctrls, 1)) { | |
a399810c | 1211 | ret = ops->vidioc_g_ext_ctrls(file, fh, &ctrls); |
35ea11ff HV |
1212 | if (ret == 0) |
1213 | p->value = ctrl.value; | |
1214 | } | |
1215 | } else | |
1216 | break; | |
1217 | if (!ret) | |
1218 | dbgarg(cmd, "id=0x%x, value=%d\n", p->id, p->value); | |
1219 | else | |
1220 | dbgarg(cmd, "id=0x%x\n", p->id); | |
1221 | break; | |
1222 | } | |
1223 | case VIDIOC_S_CTRL: | |
1224 | { | |
1225 | struct v4l2_control *p = arg; | |
1226 | struct v4l2_ext_controls ctrls; | |
1227 | struct v4l2_ext_control ctrl; | |
1228 | ||
11bbc1ca HV |
1229 | if (!vfd->ctrl_handler && |
1230 | !ops->vidioc_s_ctrl && !ops->vidioc_s_ext_ctrls) | |
35ea11ff HV |
1231 | break; |
1232 | ||
1233 | dbgarg(cmd, "id=0x%x, value=%d\n", p->id, p->value); | |
1234 | ||
11bbc1ca HV |
1235 | if (vfd->ctrl_handler) { |
1236 | ret = v4l2_s_ctrl(vfd->ctrl_handler, p); | |
1237 | break; | |
1238 | } | |
a399810c HV |
1239 | if (ops->vidioc_s_ctrl) { |
1240 | ret = ops->vidioc_s_ctrl(file, fh, p); | |
35ea11ff HV |
1241 | break; |
1242 | } | |
a399810c | 1243 | if (!ops->vidioc_s_ext_ctrls) |
35ea11ff HV |
1244 | break; |
1245 | ||
1246 | ctrls.ctrl_class = V4L2_CTRL_ID2CLASS(p->id); | |
1247 | ctrls.count = 1; | |
1248 | ctrls.controls = &ctrl; | |
1249 | ctrl.id = p->id; | |
1250 | ctrl.value = p->value; | |
1251 | if (check_ext_ctrls(&ctrls, 1)) | |
a399810c | 1252 | ret = ops->vidioc_s_ext_ctrls(file, fh, &ctrls); |
35ea11ff HV |
1253 | break; |
1254 | } | |
1255 | case VIDIOC_G_EXT_CTRLS: | |
1256 | { | |
1257 | struct v4l2_ext_controls *p = arg; | |
1258 | ||
1259 | p->error_idx = p->count; | |
11bbc1ca HV |
1260 | if (vfd->ctrl_handler) |
1261 | ret = v4l2_g_ext_ctrls(vfd->ctrl_handler, p); | |
1262 | else if (ops->vidioc_g_ext_ctrls && check_ext_ctrls(p, 0)) | |
a399810c | 1263 | ret = ops->vidioc_g_ext_ctrls(file, fh, p); |
11bbc1ca HV |
1264 | else |
1265 | break; | |
35ea11ff HV |
1266 | v4l_print_ext_ctrls(cmd, vfd, p, !ret); |
1267 | break; | |
1268 | } | |
1269 | case VIDIOC_S_EXT_CTRLS: | |
1270 | { | |
1271 | struct v4l2_ext_controls *p = arg; | |
1272 | ||
1273 | p->error_idx = p->count; | |
11bbc1ca | 1274 | if (!vfd->ctrl_handler && !ops->vidioc_s_ext_ctrls) |
35ea11ff HV |
1275 | break; |
1276 | v4l_print_ext_ctrls(cmd, vfd, p, 1); | |
11bbc1ca HV |
1277 | if (vfd->ctrl_handler) |
1278 | ret = v4l2_s_ext_ctrls(vfd->ctrl_handler, p); | |
1279 | else if (check_ext_ctrls(p, 0)) | |
a399810c | 1280 | ret = ops->vidioc_s_ext_ctrls(file, fh, p); |
35ea11ff HV |
1281 | break; |
1282 | } | |
1283 | case VIDIOC_TRY_EXT_CTRLS: | |
1284 | { | |
1285 | struct v4l2_ext_controls *p = arg; | |
1286 | ||
1287 | p->error_idx = p->count; | |
11bbc1ca | 1288 | if (!vfd->ctrl_handler && !ops->vidioc_try_ext_ctrls) |
35ea11ff HV |
1289 | break; |
1290 | v4l_print_ext_ctrls(cmd, vfd, p, 1); | |
11bbc1ca HV |
1291 | if (vfd->ctrl_handler) |
1292 | ret = v4l2_try_ext_ctrls(vfd->ctrl_handler, p); | |
1293 | else if (check_ext_ctrls(p, 0)) | |
a399810c | 1294 | ret = ops->vidioc_try_ext_ctrls(file, fh, p); |
35ea11ff HV |
1295 | break; |
1296 | } | |
1297 | case VIDIOC_QUERYMENU: | |
1298 | { | |
1299 | struct v4l2_querymenu *p = arg; | |
1300 | ||
11bbc1ca HV |
1301 | if (vfd->ctrl_handler) |
1302 | ret = v4l2_querymenu(vfd->ctrl_handler, p); | |
1303 | else if (ops->vidioc_querymenu) | |
1304 | ret = ops->vidioc_querymenu(file, fh, p); | |
1305 | else | |
35ea11ff | 1306 | break; |
35ea11ff HV |
1307 | if (!ret) |
1308 | dbgarg(cmd, "id=0x%x, index=%d, name=%s\n", | |
1309 | p->id, p->index, p->name); | |
1310 | else | |
1311 | dbgarg(cmd, "id=0x%x, index=%d\n", | |
1312 | p->id, p->index); | |
1313 | break; | |
1314 | } | |
1315 | /* --- audio ---------------------------------------------- */ | |
1316 | case VIDIOC_ENUMAUDIO: | |
1317 | { | |
1318 | struct v4l2_audio *p = arg; | |
1319 | ||
a399810c | 1320 | if (!ops->vidioc_enumaudio) |
35ea11ff | 1321 | break; |
a399810c | 1322 | ret = ops->vidioc_enumaudio(file, fh, p); |
35ea11ff HV |
1323 | if (!ret) |
1324 | dbgarg(cmd, "index=%d, name=%s, capability=0x%x, " | |
1325 | "mode=0x%x\n", p->index, p->name, | |
1326 | p->capability, p->mode); | |
1327 | else | |
1328 | dbgarg(cmd, "index=%d\n", p->index); | |
1329 | break; | |
1330 | } | |
1331 | case VIDIOC_G_AUDIO: | |
1332 | { | |
1333 | struct v4l2_audio *p = arg; | |
35ea11ff | 1334 | |
a399810c | 1335 | if (!ops->vidioc_g_audio) |
35ea11ff HV |
1336 | break; |
1337 | ||
a399810c | 1338 | ret = ops->vidioc_g_audio(file, fh, p); |
35ea11ff HV |
1339 | if (!ret) |
1340 | dbgarg(cmd, "index=%d, name=%s, capability=0x%x, " | |
1341 | "mode=0x%x\n", p->index, | |
1342 | p->name, p->capability, p->mode); | |
1343 | else | |
1344 | dbgarg(cmd, "index=%d\n", p->index); | |
1345 | break; | |
1346 | } | |
1347 | case VIDIOC_S_AUDIO: | |
1348 | { | |
1349 | struct v4l2_audio *p = arg; | |
1350 | ||
a399810c | 1351 | if (!ops->vidioc_s_audio) |
35ea11ff HV |
1352 | break; |
1353 | dbgarg(cmd, "index=%d, name=%s, capability=0x%x, " | |
1354 | "mode=0x%x\n", p->index, p->name, | |
1355 | p->capability, p->mode); | |
a399810c | 1356 | ret = ops->vidioc_s_audio(file, fh, p); |
35ea11ff HV |
1357 | break; |
1358 | } | |
1359 | case VIDIOC_ENUMAUDOUT: | |
1360 | { | |
1361 | struct v4l2_audioout *p = arg; | |
1362 | ||
a399810c | 1363 | if (!ops->vidioc_enumaudout) |
35ea11ff HV |
1364 | break; |
1365 | dbgarg(cmd, "Enum for index=%d\n", p->index); | |
a399810c | 1366 | ret = ops->vidioc_enumaudout(file, fh, p); |
35ea11ff HV |
1367 | if (!ret) |
1368 | dbgarg2("index=%d, name=%s, capability=%d, " | |
1369 | "mode=%d\n", p->index, p->name, | |
1370 | p->capability, p->mode); | |
1371 | break; | |
1372 | } | |
1373 | case VIDIOC_G_AUDOUT: | |
1374 | { | |
1375 | struct v4l2_audioout *p = arg; | |
1376 | ||
a399810c | 1377 | if (!ops->vidioc_g_audout) |
35ea11ff | 1378 | break; |
337f9d20 | 1379 | |
a399810c | 1380 | ret = ops->vidioc_g_audout(file, fh, p); |
35ea11ff HV |
1381 | if (!ret) |
1382 | dbgarg2("index=%d, name=%s, capability=%d, " | |
1383 | "mode=%d\n", p->index, p->name, | |
1384 | p->capability, p->mode); | |
1385 | break; | |
1386 | } | |
1387 | case VIDIOC_S_AUDOUT: | |
1388 | { | |
1389 | struct v4l2_audioout *p = arg; | |
1390 | ||
a399810c | 1391 | if (!ops->vidioc_s_audout) |
35ea11ff HV |
1392 | break; |
1393 | dbgarg(cmd, "index=%d, name=%s, capability=%d, " | |
1394 | "mode=%d\n", p->index, p->name, | |
1395 | p->capability, p->mode); | |
1396 | ||
a399810c | 1397 | ret = ops->vidioc_s_audout(file, fh, p); |
35ea11ff HV |
1398 | break; |
1399 | } | |
1400 | case VIDIOC_G_MODULATOR: | |
1401 | { | |
1402 | struct v4l2_modulator *p = arg; | |
1403 | ||
a399810c | 1404 | if (!ops->vidioc_g_modulator) |
35ea11ff | 1405 | break; |
a399810c | 1406 | ret = ops->vidioc_g_modulator(file, fh, p); |
35ea11ff HV |
1407 | if (!ret) |
1408 | dbgarg(cmd, "index=%d, name=%s, " | |
1409 | "capability=%d, rangelow=%d," | |
1410 | " rangehigh=%d, txsubchans=%d\n", | |
1411 | p->index, p->name, p->capability, | |
1412 | p->rangelow, p->rangehigh, | |
1413 | p->txsubchans); | |
1414 | break; | |
1415 | } | |
1416 | case VIDIOC_S_MODULATOR: | |
1417 | { | |
1418 | struct v4l2_modulator *p = arg; | |
1419 | ||
a399810c | 1420 | if (!ops->vidioc_s_modulator) |
35ea11ff HV |
1421 | break; |
1422 | dbgarg(cmd, "index=%d, name=%s, capability=%d, " | |
1423 | "rangelow=%d, rangehigh=%d, txsubchans=%d\n", | |
1424 | p->index, p->name, p->capability, p->rangelow, | |
1425 | p->rangehigh, p->txsubchans); | |
a399810c | 1426 | ret = ops->vidioc_s_modulator(file, fh, p); |
35ea11ff HV |
1427 | break; |
1428 | } | |
1429 | case VIDIOC_G_CROP: | |
1430 | { | |
1431 | struct v4l2_crop *p = arg; | |
1432 | ||
a399810c | 1433 | if (!ops->vidioc_g_crop) |
35ea11ff | 1434 | break; |
a56a18c3 | 1435 | |
35ea11ff | 1436 | dbgarg(cmd, "type=%s\n", prt_names(p->type, v4l2_type_names)); |
a399810c | 1437 | ret = ops->vidioc_g_crop(file, fh, p); |
35ea11ff HV |
1438 | if (!ret) |
1439 | dbgrect(vfd, "", &p->c); | |
1440 | break; | |
1441 | } | |
1442 | case VIDIOC_S_CROP: | |
1443 | { | |
1444 | struct v4l2_crop *p = arg; | |
1445 | ||
a399810c | 1446 | if (!ops->vidioc_s_crop) |
35ea11ff HV |
1447 | break; |
1448 | dbgarg(cmd, "type=%s\n", prt_names(p->type, v4l2_type_names)); | |
1449 | dbgrect(vfd, "", &p->c); | |
a399810c | 1450 | ret = ops->vidioc_s_crop(file, fh, p); |
35ea11ff HV |
1451 | break; |
1452 | } | |
1453 | case VIDIOC_CROPCAP: | |
1454 | { | |
1455 | struct v4l2_cropcap *p = arg; | |
1456 | ||
1457 | /*FIXME: Should also show v4l2_fract pixelaspect */ | |
a399810c | 1458 | if (!ops->vidioc_cropcap) |
35ea11ff | 1459 | break; |
a56a18c3 | 1460 | |
35ea11ff | 1461 | dbgarg(cmd, "type=%s\n", prt_names(p->type, v4l2_type_names)); |
a399810c | 1462 | ret = ops->vidioc_cropcap(file, fh, p); |
35ea11ff HV |
1463 | if (!ret) { |
1464 | dbgrect(vfd, "bounds ", &p->bounds); | |
1465 | dbgrect(vfd, "defrect ", &p->defrect); | |
1466 | } | |
1467 | break; | |
1468 | } | |
1469 | case VIDIOC_G_JPEGCOMP: | |
1470 | { | |
1471 | struct v4l2_jpegcompression *p = arg; | |
1472 | ||
a399810c | 1473 | if (!ops->vidioc_g_jpegcomp) |
35ea11ff | 1474 | break; |
a56a18c3 | 1475 | |
a399810c | 1476 | ret = ops->vidioc_g_jpegcomp(file, fh, p); |
35ea11ff HV |
1477 | if (!ret) |
1478 | dbgarg(cmd, "quality=%d, APPn=%d, " | |
1479 | "APP_len=%d, COM_len=%d, " | |
1480 | "jpeg_markers=%d\n", | |
1481 | p->quality, p->APPn, p->APP_len, | |
1482 | p->COM_len, p->jpeg_markers); | |
1483 | break; | |
1484 | } | |
1485 | case VIDIOC_S_JPEGCOMP: | |
1486 | { | |
1487 | struct v4l2_jpegcompression *p = arg; | |
1488 | ||
a399810c | 1489 | if (!ops->vidioc_g_jpegcomp) |
35ea11ff HV |
1490 | break; |
1491 | dbgarg(cmd, "quality=%d, APPn=%d, APP_len=%d, " | |
1492 | "COM_len=%d, jpeg_markers=%d\n", | |
1493 | p->quality, p->APPn, p->APP_len, | |
1494 | p->COM_len, p->jpeg_markers); | |
a399810c | 1495 | ret = ops->vidioc_s_jpegcomp(file, fh, p); |
35ea11ff HV |
1496 | break; |
1497 | } | |
1498 | case VIDIOC_G_ENC_INDEX: | |
1499 | { | |
1500 | struct v4l2_enc_idx *p = arg; | |
1501 | ||
a399810c | 1502 | if (!ops->vidioc_g_enc_index) |
35ea11ff | 1503 | break; |
a399810c | 1504 | ret = ops->vidioc_g_enc_index(file, fh, p); |
35ea11ff HV |
1505 | if (!ret) |
1506 | dbgarg(cmd, "entries=%d, entries_cap=%d\n", | |
1507 | p->entries, p->entries_cap); | |
1508 | break; | |
1509 | } | |
1510 | case VIDIOC_ENCODER_CMD: | |
1511 | { | |
1512 | struct v4l2_encoder_cmd *p = arg; | |
1513 | ||
a399810c | 1514 | if (!ops->vidioc_encoder_cmd) |
35ea11ff | 1515 | break; |
a399810c | 1516 | ret = ops->vidioc_encoder_cmd(file, fh, p); |
35ea11ff HV |
1517 | if (!ret) |
1518 | dbgarg(cmd, "cmd=%d, flags=%x\n", p->cmd, p->flags); | |
1519 | break; | |
1520 | } | |
1521 | case VIDIOC_TRY_ENCODER_CMD: | |
1522 | { | |
1523 | struct v4l2_encoder_cmd *p = arg; | |
1524 | ||
a399810c | 1525 | if (!ops->vidioc_try_encoder_cmd) |
35ea11ff | 1526 | break; |
a399810c | 1527 | ret = ops->vidioc_try_encoder_cmd(file, fh, p); |
35ea11ff HV |
1528 | if (!ret) |
1529 | dbgarg(cmd, "cmd=%d, flags=%x\n", p->cmd, p->flags); | |
1530 | break; | |
1531 | } | |
1532 | case VIDIOC_G_PARM: | |
1533 | { | |
1534 | struct v4l2_streamparm *p = arg; | |
35ea11ff | 1535 | |
a399810c | 1536 | if (ops->vidioc_g_parm) { |
34796bc0 TP |
1537 | ret = check_fmt(ops, p->type); |
1538 | if (ret) | |
1539 | break; | |
a399810c | 1540 | ret = ops->vidioc_g_parm(file, fh, p); |
35ea11ff | 1541 | } else { |
9bedc7f7 HV |
1542 | v4l2_std_id std = vfd->current_norm; |
1543 | ||
35ea11ff | 1544 | if (p->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) |
3f5e1824 | 1545 | break; |
35ea11ff | 1546 | |
35ea11ff | 1547 | ret = 0; |
9bedc7f7 HV |
1548 | if (ops->vidioc_g_std) |
1549 | ret = ops->vidioc_g_std(file, fh, &std); | |
1550 | else if (std == 0) | |
1551 | ret = -EINVAL; | |
1552 | if (ret == 0) | |
1553 | v4l2_video_std_frame_period(std, | |
1554 | &p->parm.capture.timeperframe); | |
35ea11ff HV |
1555 | } |
1556 | ||
1557 | dbgarg(cmd, "type=%d\n", p->type); | |
1558 | break; | |
1559 | } | |
1560 | case VIDIOC_S_PARM: | |
1561 | { | |
1562 | struct v4l2_streamparm *p = arg; | |
1563 | ||
a399810c | 1564 | if (!ops->vidioc_s_parm) |
35ea11ff | 1565 | break; |
34796bc0 TP |
1566 | ret = check_fmt(ops, p->type); |
1567 | if (ret) | |
1568 | break; | |
1569 | ||
35ea11ff | 1570 | dbgarg(cmd, "type=%d\n", p->type); |
a399810c | 1571 | ret = ops->vidioc_s_parm(file, fh, p); |
35ea11ff HV |
1572 | break; |
1573 | } | |
1574 | case VIDIOC_G_TUNER: | |
1575 | { | |
1576 | struct v4l2_tuner *p = arg; | |
35ea11ff | 1577 | |
a399810c | 1578 | if (!ops->vidioc_g_tuner) |
35ea11ff HV |
1579 | break; |
1580 | ||
a399810c | 1581 | ret = ops->vidioc_g_tuner(file, fh, p); |
35ea11ff HV |
1582 | if (!ret) |
1583 | dbgarg(cmd, "index=%d, name=%s, type=%d, " | |
1584 | "capability=0x%x, rangelow=%d, " | |
1585 | "rangehigh=%d, signal=%d, afc=%d, " | |
1586 | "rxsubchans=0x%x, audmode=%d\n", | |
1587 | p->index, p->name, p->type, | |
1588 | p->capability, p->rangelow, | |
1589 | p->rangehigh, p->signal, p->afc, | |
1590 | p->rxsubchans, p->audmode); | |
1591 | break; | |
1592 | } | |
1593 | case VIDIOC_S_TUNER: | |
1594 | { | |
1595 | struct v4l2_tuner *p = arg; | |
1596 | ||
a399810c | 1597 | if (!ops->vidioc_s_tuner) |
35ea11ff HV |
1598 | break; |
1599 | dbgarg(cmd, "index=%d, name=%s, type=%d, " | |
1600 | "capability=0x%x, rangelow=%d, " | |
1601 | "rangehigh=%d, signal=%d, afc=%d, " | |
1602 | "rxsubchans=0x%x, audmode=%d\n", | |
1603 | p->index, p->name, p->type, | |
1604 | p->capability, p->rangelow, | |
1605 | p->rangehigh, p->signal, p->afc, | |
1606 | p->rxsubchans, p->audmode); | |
a399810c | 1607 | ret = ops->vidioc_s_tuner(file, fh, p); |
35ea11ff HV |
1608 | break; |
1609 | } | |
1610 | case VIDIOC_G_FREQUENCY: | |
1611 | { | |
1612 | struct v4l2_frequency *p = arg; | |
1613 | ||
a399810c | 1614 | if (!ops->vidioc_g_frequency) |
35ea11ff HV |
1615 | break; |
1616 | ||
a399810c | 1617 | ret = ops->vidioc_g_frequency(file, fh, p); |
35ea11ff HV |
1618 | if (!ret) |
1619 | dbgarg(cmd, "tuner=%d, type=%d, frequency=%d\n", | |
1620 | p->tuner, p->type, p->frequency); | |
1621 | break; | |
1622 | } | |
1623 | case VIDIOC_S_FREQUENCY: | |
1624 | { | |
1625 | struct v4l2_frequency *p = arg; | |
1626 | ||
a399810c | 1627 | if (!ops->vidioc_s_frequency) |
35ea11ff HV |
1628 | break; |
1629 | dbgarg(cmd, "tuner=%d, type=%d, frequency=%d\n", | |
1630 | p->tuner, p->type, p->frequency); | |
a399810c | 1631 | ret = ops->vidioc_s_frequency(file, fh, p); |
35ea11ff HV |
1632 | break; |
1633 | } | |
1634 | case VIDIOC_G_SLICED_VBI_CAP: | |
1635 | { | |
1636 | struct v4l2_sliced_vbi_cap *p = arg; | |
35ea11ff | 1637 | |
a399810c | 1638 | if (!ops->vidioc_g_sliced_vbi_cap) |
35ea11ff | 1639 | break; |
19c96e4b TP |
1640 | |
1641 | /* Clear up to type, everything after type is zerod already */ | |
1642 | memset(p, 0, offsetof(struct v4l2_sliced_vbi_cap, type)); | |
1643 | ||
35ea11ff | 1644 | dbgarg(cmd, "type=%s\n", prt_names(p->type, v4l2_type_names)); |
a399810c | 1645 | ret = ops->vidioc_g_sliced_vbi_cap(file, fh, p); |
35ea11ff HV |
1646 | if (!ret) |
1647 | dbgarg2("service_set=%d\n", p->service_set); | |
1648 | break; | |
1649 | } | |
1650 | case VIDIOC_LOG_STATUS: | |
1651 | { | |
a399810c | 1652 | if (!ops->vidioc_log_status) |
35ea11ff | 1653 | break; |
a399810c | 1654 | ret = ops->vidioc_log_status(file, fh); |
35ea11ff HV |
1655 | break; |
1656 | } | |
1657 | #ifdef CONFIG_VIDEO_ADV_DEBUG | |
1658 | case VIDIOC_DBG_G_REGISTER: | |
1659 | { | |
aecde8b5 | 1660 | struct v4l2_dbg_register *p = arg; |
35ea11ff HV |
1661 | |
1662 | if (!capable(CAP_SYS_ADMIN)) | |
1663 | ret = -EPERM; | |
a399810c HV |
1664 | else if (ops->vidioc_g_register) |
1665 | ret = ops->vidioc_g_register(file, fh, p); | |
35ea11ff HV |
1666 | break; |
1667 | } | |
1668 | case VIDIOC_DBG_S_REGISTER: | |
1669 | { | |
aecde8b5 | 1670 | struct v4l2_dbg_register *p = arg; |
35ea11ff HV |
1671 | |
1672 | if (!capable(CAP_SYS_ADMIN)) | |
1673 | ret = -EPERM; | |
a399810c HV |
1674 | else if (ops->vidioc_s_register) |
1675 | ret = ops->vidioc_s_register(file, fh, p); | |
35ea11ff HV |
1676 | break; |
1677 | } | |
1678 | #endif | |
aecde8b5 | 1679 | case VIDIOC_DBG_G_CHIP_IDENT: |
35ea11ff | 1680 | { |
aecde8b5 | 1681 | struct v4l2_dbg_chip_ident *p = arg; |
35ea11ff | 1682 | |
a399810c | 1683 | if (!ops->vidioc_g_chip_ident) |
35ea11ff | 1684 | break; |
80b36e0f HV |
1685 | p->ident = V4L2_IDENT_NONE; |
1686 | p->revision = 0; | |
a399810c | 1687 | ret = ops->vidioc_g_chip_ident(file, fh, p); |
35ea11ff HV |
1688 | if (!ret) |
1689 | dbgarg(cmd, "chip_ident=%u, revision=0x%x\n", p->ident, p->revision); | |
1690 | break; | |
1691 | } | |
35ea11ff HV |
1692 | case VIDIOC_S_HW_FREQ_SEEK: |
1693 | { | |
1694 | struct v4l2_hw_freq_seek *p = arg; | |
1695 | ||
a399810c | 1696 | if (!ops->vidioc_s_hw_freq_seek) |
35ea11ff HV |
1697 | break; |
1698 | dbgarg(cmd, | |
1699 | "tuner=%d, type=%d, seek_upward=%d, wrap_around=%d\n", | |
1700 | p->tuner, p->type, p->seek_upward, p->wrap_around); | |
a399810c HV |
1701 | ret = ops->vidioc_s_hw_freq_seek(file, fh, p); |
1702 | break; | |
1703 | } | |
74d83fa0 MCC |
1704 | case VIDIOC_ENUM_FRAMESIZES: |
1705 | { | |
1706 | struct v4l2_frmsizeenum *p = arg; | |
1707 | ||
1708 | if (!ops->vidioc_enum_framesizes) | |
1709 | break; | |
1710 | ||
74d83fa0 MCC |
1711 | ret = ops->vidioc_enum_framesizes(file, fh, p); |
1712 | dbgarg(cmd, | |
d1afe425 MCC |
1713 | "index=%d, pixelformat=%c%c%c%c, type=%d ", |
1714 | p->index, | |
1715 | (p->pixel_format & 0xff), | |
1716 | (p->pixel_format >> 8) & 0xff, | |
1717 | (p->pixel_format >> 16) & 0xff, | |
1718 | (p->pixel_format >> 24) & 0xff, | |
1719 | p->type); | |
74d83fa0 MCC |
1720 | switch (p->type) { |
1721 | case V4L2_FRMSIZE_TYPE_DISCRETE: | |
d33fbcbb | 1722 | dbgarg3("width = %d, height=%d\n", |
74d83fa0 MCC |
1723 | p->discrete.width, p->discrete.height); |
1724 | break; | |
1725 | case V4L2_FRMSIZE_TYPE_STEPWISE: | |
d33fbcbb | 1726 | dbgarg3("min %dx%d, max %dx%d, step %dx%d\n", |
74d83fa0 MCC |
1727 | p->stepwise.min_width, p->stepwise.min_height, |
1728 | p->stepwise.step_width, p->stepwise.step_height, | |
1729 | p->stepwise.max_width, p->stepwise.max_height); | |
1730 | break; | |
1731 | case V4L2_FRMSIZE_TYPE_CONTINUOUS: | |
d33fbcbb | 1732 | dbgarg3("continuous\n"); |
74d83fa0 MCC |
1733 | break; |
1734 | default: | |
d33fbcbb | 1735 | dbgarg3("- Unknown type!\n"); |
74d83fa0 MCC |
1736 | } |
1737 | ||
1738 | break; | |
1739 | } | |
1740 | case VIDIOC_ENUM_FRAMEINTERVALS: | |
1741 | { | |
1742 | struct v4l2_frmivalenum *p = arg; | |
1743 | ||
1744 | if (!ops->vidioc_enum_frameintervals) | |
1745 | break; | |
1746 | ||
74d83fa0 MCC |
1747 | ret = ops->vidioc_enum_frameintervals(file, fh, p); |
1748 | dbgarg(cmd, | |
1749 | "index=%d, pixelformat=%d, width=%d, height=%d, type=%d ", | |
1750 | p->index, p->pixel_format, | |
1751 | p->width, p->height, p->type); | |
1752 | switch (p->type) { | |
1753 | case V4L2_FRMIVAL_TYPE_DISCRETE: | |
1754 | dbgarg2("fps=%d/%d\n", | |
1755 | p->discrete.numerator, | |
1756 | p->discrete.denominator); | |
1757 | break; | |
1758 | case V4L2_FRMIVAL_TYPE_STEPWISE: | |
1958578d MCC |
1759 | dbgarg2("min=%d/%d, max=%d/%d, step=%d/%d\n", |
1760 | p->stepwise.min.numerator, | |
1761 | p->stepwise.min.denominator, | |
1762 | p->stepwise.max.numerator, | |
1763 | p->stepwise.max.denominator, | |
1764 | p->stepwise.step.numerator, | |
1765 | p->stepwise.step.denominator); | |
74d83fa0 MCC |
1766 | break; |
1767 | case V4L2_FRMIVAL_TYPE_CONTINUOUS: | |
1768 | dbgarg2("continuous\n"); | |
1769 | break; | |
1770 | default: | |
1771 | dbgarg2("- Unknown type!\n"); | |
1772 | } | |
1773 | break; | |
1774 | } | |
b6456c0c MK |
1775 | case VIDIOC_ENUM_DV_PRESETS: |
1776 | { | |
1777 | struct v4l2_dv_enum_preset *p = arg; | |
1778 | ||
1779 | if (!ops->vidioc_enum_dv_presets) | |
1780 | break; | |
1781 | ||
1782 | ret = ops->vidioc_enum_dv_presets(file, fh, p); | |
1783 | if (!ret) | |
1784 | dbgarg(cmd, | |
1785 | "index=%d, preset=%d, name=%s, width=%d," | |
1786 | " height=%d ", | |
1787 | p->index, p->preset, p->name, p->width, | |
1788 | p->height); | |
1789 | break; | |
1790 | } | |
1791 | case VIDIOC_S_DV_PRESET: | |
1792 | { | |
1793 | struct v4l2_dv_preset *p = arg; | |
1794 | ||
1795 | if (!ops->vidioc_s_dv_preset) | |
1796 | break; | |
1797 | ||
1798 | dbgarg(cmd, "preset=%d\n", p->preset); | |
1799 | ret = ops->vidioc_s_dv_preset(file, fh, p); | |
1800 | break; | |
1801 | } | |
1802 | case VIDIOC_G_DV_PRESET: | |
1803 | { | |
1804 | struct v4l2_dv_preset *p = arg; | |
1805 | ||
1806 | if (!ops->vidioc_g_dv_preset) | |
1807 | break; | |
1808 | ||
1809 | ret = ops->vidioc_g_dv_preset(file, fh, p); | |
1810 | if (!ret) | |
1811 | dbgarg(cmd, "preset=%d\n", p->preset); | |
1812 | break; | |
1813 | } | |
1814 | case VIDIOC_QUERY_DV_PRESET: | |
1815 | { | |
1816 | struct v4l2_dv_preset *p = arg; | |
1817 | ||
1818 | if (!ops->vidioc_query_dv_preset) | |
1819 | break; | |
1820 | ||
1821 | ret = ops->vidioc_query_dv_preset(file, fh, p); | |
1822 | if (!ret) | |
1823 | dbgarg(cmd, "preset=%d\n", p->preset); | |
1824 | break; | |
1825 | } | |
1826 | case VIDIOC_S_DV_TIMINGS: | |
1827 | { | |
1828 | struct v4l2_dv_timings *p = arg; | |
1829 | ||
1830 | if (!ops->vidioc_s_dv_timings) | |
1831 | break; | |
1832 | ||
1833 | switch (p->type) { | |
1834 | case V4L2_DV_BT_656_1120: | |
1835 | dbgarg2("bt-656/1120:interlaced=%d, pixelclock=%lld," | |
1836 | " width=%d, height=%d, polarities=%x," | |
1837 | " hfrontporch=%d, hsync=%d, hbackporch=%d," | |
1838 | " vfrontporch=%d, vsync=%d, vbackporch=%d," | |
1839 | " il_vfrontporch=%d, il_vsync=%d," | |
1840 | " il_vbackporch=%d\n", | |
1841 | p->bt.interlaced, p->bt.pixelclock, | |
1842 | p->bt.width, p->bt.height, p->bt.polarities, | |
1843 | p->bt.hfrontporch, p->bt.hsync, | |
1844 | p->bt.hbackporch, p->bt.vfrontporch, | |
1845 | p->bt.vsync, p->bt.vbackporch, | |
1846 | p->bt.il_vfrontporch, p->bt.il_vsync, | |
1847 | p->bt.il_vbackporch); | |
1848 | ret = ops->vidioc_s_dv_timings(file, fh, p); | |
1849 | break; | |
1850 | default: | |
1851 | dbgarg2("Unknown type %d!\n", p->type); | |
1852 | break; | |
1853 | } | |
1854 | break; | |
1855 | } | |
1856 | case VIDIOC_G_DV_TIMINGS: | |
1857 | { | |
1858 | struct v4l2_dv_timings *p = arg; | |
1859 | ||
1860 | if (!ops->vidioc_g_dv_timings) | |
1861 | break; | |
1862 | ||
1863 | ret = ops->vidioc_g_dv_timings(file, fh, p); | |
1864 | if (!ret) { | |
1865 | switch (p->type) { | |
1866 | case V4L2_DV_BT_656_1120: | |
1867 | dbgarg2("bt-656/1120:interlaced=%d," | |
1868 | " pixelclock=%lld," | |
1869 | " width=%d, height=%d, polarities=%x," | |
1870 | " hfrontporch=%d, hsync=%d," | |
1871 | " hbackporch=%d, vfrontporch=%d," | |
1872 | " vsync=%d, vbackporch=%d," | |
1873 | " il_vfrontporch=%d, il_vsync=%d," | |
1874 | " il_vbackporch=%d\n", | |
1875 | p->bt.interlaced, p->bt.pixelclock, | |
1876 | p->bt.width, p->bt.height, | |
1877 | p->bt.polarities, p->bt.hfrontporch, | |
1878 | p->bt.hsync, p->bt.hbackporch, | |
1879 | p->bt.vfrontporch, p->bt.vsync, | |
1880 | p->bt.vbackporch, p->bt.il_vfrontporch, | |
1881 | p->bt.il_vsync, p->bt.il_vbackporch); | |
1882 | break; | |
1883 | default: | |
1884 | dbgarg2("Unknown type %d!\n", p->type); | |
1885 | break; | |
1886 | } | |
1887 | } | |
1888 | break; | |
1889 | } | |
d3d7c963 SA |
1890 | case VIDIOC_DQEVENT: |
1891 | { | |
1892 | struct v4l2_event *ev = arg; | |
1893 | ||
1894 | if (!ops->vidioc_subscribe_event) | |
1895 | break; | |
1896 | ||
1897 | ret = v4l2_event_dequeue(fh, ev, file->f_flags & O_NONBLOCK); | |
1898 | if (ret < 0) { | |
1899 | dbgarg(cmd, "no pending events?"); | |
1900 | break; | |
1901 | } | |
1902 | dbgarg(cmd, | |
1903 | "pending=%d, type=0x%8.8x, sequence=%d, " | |
1904 | "timestamp=%lu.%9.9lu ", | |
1905 | ev->pending, ev->type, ev->sequence, | |
1906 | ev->timestamp.tv_sec, ev->timestamp.tv_nsec); | |
1907 | break; | |
1908 | } | |
1909 | case VIDIOC_SUBSCRIBE_EVENT: | |
1910 | { | |
1911 | struct v4l2_event_subscription *sub = arg; | |
1912 | ||
1913 | if (!ops->vidioc_subscribe_event) | |
1914 | break; | |
74d83fa0 | 1915 | |
d3d7c963 SA |
1916 | ret = ops->vidioc_subscribe_event(fh, sub); |
1917 | if (ret < 0) { | |
1918 | dbgarg(cmd, "failed, ret=%ld", ret); | |
1919 | break; | |
1920 | } | |
1921 | dbgarg(cmd, "type=0x%8.8x", sub->type); | |
1922 | break; | |
1923 | } | |
1924 | case VIDIOC_UNSUBSCRIBE_EVENT: | |
1925 | { | |
1926 | struct v4l2_event_subscription *sub = arg; | |
1927 | ||
1928 | if (!ops->vidioc_unsubscribe_event) | |
1929 | break; | |
1930 | ||
1931 | ret = ops->vidioc_unsubscribe_event(fh, sub); | |
1932 | if (ret < 0) { | |
1933 | dbgarg(cmd, "failed, ret=%ld", ret); | |
1934 | break; | |
1935 | } | |
1936 | dbgarg(cmd, "type=0x%8.8x", sub->type); | |
1937 | break; | |
1938 | } | |
a399810c HV |
1939 | default: |
1940 | { | |
1941 | if (!ops->vidioc_default) | |
1942 | break; | |
1943 | ret = ops->vidioc_default(file, fh, cmd, arg); | |
35ea11ff HV |
1944 | break; |
1945 | } | |
1946 | } /* switch */ | |
1947 | ||
1948 | if (vfd->debug & V4L2_DEBUG_IOCTL_ARG) { | |
1949 | if (ret < 0) { | |
1950 | v4l_print_ioctl(vfd->name, cmd); | |
069b7479 | 1951 | printk(KERN_CONT " error %ld\n", ret); |
35ea11ff HV |
1952 | } |
1953 | } | |
1954 | ||
1955 | return ret; | |
1956 | } | |
1957 | ||
19c96e4b TP |
1958 | /* In some cases, only a few fields are used as input, i.e. when the app sets |
1959 | * "index" and then the driver fills in the rest of the structure for the thing | |
1960 | * with that index. We only need to copy up the first non-input field. */ | |
1961 | static unsigned long cmd_input_size(unsigned int cmd) | |
1962 | { | |
1963 | /* Size of structure up to and including 'field' */ | |
9f1a693f HV |
1964 | #define CMDINSIZE(cmd, type, field) \ |
1965 | case VIDIOC_##cmd: \ | |
1966 | return offsetof(struct v4l2_##type, field) + \ | |
1967 | sizeof(((struct v4l2_##type *)0)->field); | |
19c96e4b | 1968 | |
9f1a693f | 1969 | switch (cmd) { |
19c96e4b TP |
1970 | CMDINSIZE(ENUM_FMT, fmtdesc, type); |
1971 | CMDINSIZE(G_FMT, format, type); | |
1972 | CMDINSIZE(QUERYBUF, buffer, type); | |
1973 | CMDINSIZE(G_PARM, streamparm, type); | |
1974 | CMDINSIZE(ENUMSTD, standard, index); | |
1975 | CMDINSIZE(ENUMINPUT, input, index); | |
1976 | CMDINSIZE(G_CTRL, control, id); | |
1977 | CMDINSIZE(G_TUNER, tuner, index); | |
1978 | CMDINSIZE(QUERYCTRL, queryctrl, id); | |
1979 | CMDINSIZE(QUERYMENU, querymenu, index); | |
1980 | CMDINSIZE(ENUMOUTPUT, output, index); | |
1981 | CMDINSIZE(G_MODULATOR, modulator, index); | |
1982 | CMDINSIZE(G_FREQUENCY, frequency, tuner); | |
1983 | CMDINSIZE(CROPCAP, cropcap, type); | |
1984 | CMDINSIZE(G_CROP, crop, type); | |
1985 | CMDINSIZE(ENUMAUDIO, audio, index); | |
1986 | CMDINSIZE(ENUMAUDOUT, audioout, index); | |
1987 | CMDINSIZE(ENCODER_CMD, encoder_cmd, flags); | |
1988 | CMDINSIZE(TRY_ENCODER_CMD, encoder_cmd, flags); | |
1989 | CMDINSIZE(G_SLICED_VBI_CAP, sliced_vbi_cap, type); | |
1990 | CMDINSIZE(ENUM_FRAMESIZES, frmsizeenum, pixel_format); | |
1991 | CMDINSIZE(ENUM_FRAMEINTERVALS, frmivalenum, height); | |
1992 | default: | |
1993 | return _IOC_SIZE(cmd); | |
1994 | } | |
1995 | } | |
1996 | ||
069b7479 | 1997 | long video_ioctl2(struct file *file, |
35ea11ff HV |
1998 | unsigned int cmd, unsigned long arg) |
1999 | { | |
2000 | char sbuf[128]; | |
2001 | void *mbuf = NULL; | |
1d94aa36 | 2002 | void *parg = (void *)arg; |
069b7479 | 2003 | long err = -EINVAL; |
35ea11ff HV |
2004 | int is_ext_ctrl; |
2005 | size_t ctrls_size = 0; | |
2006 | void __user *user_ptr = NULL; | |
2007 | ||
2008 | #ifdef __OLD_VIDIOC_ | |
2009 | cmd = video_fix_command(cmd); | |
2010 | #endif | |
2011 | is_ext_ctrl = (cmd == VIDIOC_S_EXT_CTRLS || cmd == VIDIOC_G_EXT_CTRLS || | |
2012 | cmd == VIDIOC_TRY_EXT_CTRLS); | |
2013 | ||
2014 | /* Copy arguments into temp kernel buffer */ | |
337f9d20 | 2015 | if (_IOC_DIR(cmd) != _IOC_NONE) { |
35ea11ff HV |
2016 | if (_IOC_SIZE(cmd) <= sizeof(sbuf)) { |
2017 | parg = sbuf; | |
2018 | } else { | |
2019 | /* too big to allocate from stack */ | |
2020 | mbuf = kmalloc(_IOC_SIZE(cmd), GFP_KERNEL); | |
2021 | if (NULL == mbuf) | |
2022 | return -ENOMEM; | |
2023 | parg = mbuf; | |
2024 | } | |
2025 | ||
2026 | err = -EFAULT; | |
19c96e4b TP |
2027 | if (_IOC_DIR(cmd) & _IOC_WRITE) { |
2028 | unsigned long n = cmd_input_size(cmd); | |
2029 | ||
2030 | if (copy_from_user(parg, (void __user *)arg, n)) | |
35ea11ff | 2031 | goto out; |
19c96e4b TP |
2032 | |
2033 | /* zero out anything we don't copy from userspace */ | |
2034 | if (n < _IOC_SIZE(cmd)) | |
2035 | memset((u8 *)parg + n, 0, _IOC_SIZE(cmd) - n); | |
337f9d20 TP |
2036 | } else { |
2037 | /* read-only ioctl */ | |
2038 | memset(parg, 0, _IOC_SIZE(cmd)); | |
19c96e4b | 2039 | } |
35ea11ff HV |
2040 | } |
2041 | ||
2042 | if (is_ext_ctrl) { | |
2043 | struct v4l2_ext_controls *p = parg; | |
2044 | ||
2045 | /* In case of an error, tell the caller that it wasn't | |
2046 | a specific control that caused it. */ | |
2047 | p->error_idx = p->count; | |
2048 | user_ptr = (void __user *)p->controls; | |
2049 | if (p->count) { | |
2050 | ctrls_size = sizeof(struct v4l2_ext_control) * p->count; | |
2051 | /* Note: v4l2_ext_controls fits in sbuf[] so mbuf is still NULL. */ | |
2052 | mbuf = kmalloc(ctrls_size, GFP_KERNEL); | |
2053 | err = -ENOMEM; | |
2054 | if (NULL == mbuf) | |
2055 | goto out_ext_ctrl; | |
2056 | err = -EFAULT; | |
2057 | if (copy_from_user(mbuf, user_ptr, ctrls_size)) | |
2058 | goto out_ext_ctrl; | |
2059 | p->controls = mbuf; | |
2060 | } | |
2061 | } | |
2062 | ||
2063 | /* Handles IOCTL */ | |
b1f88407 | 2064 | err = __video_do_ioctl(file, cmd, parg); |
35ea11ff HV |
2065 | if (err == -ENOIOCTLCMD) |
2066 | err = -EINVAL; | |
2067 | if (is_ext_ctrl) { | |
2068 | struct v4l2_ext_controls *p = parg; | |
2069 | ||
2070 | p->controls = (void *)user_ptr; | |
2071 | if (p->count && err == 0 && copy_to_user(user_ptr, mbuf, ctrls_size)) | |
2072 | err = -EFAULT; | |
2073 | goto out_ext_ctrl; | |
2074 | } | |
2075 | if (err < 0) | |
2076 | goto out; | |
2077 | ||
2078 | out_ext_ctrl: | |
2079 | /* Copy results into user buffer */ | |
2080 | switch (_IOC_DIR(cmd)) { | |
2081 | case _IOC_READ: | |
2082 | case (_IOC_WRITE | _IOC_READ): | |
2083 | if (copy_to_user((void __user *)arg, parg, _IOC_SIZE(cmd))) | |
2084 | err = -EFAULT; | |
2085 | break; | |
2086 | } | |
2087 | ||
2088 | out: | |
2089 | kfree(mbuf); | |
2090 | return err; | |
2091 | } | |
8a522c91 | 2092 | EXPORT_SYMBOL(video_ioctl2); |