Commit | Line | Data |
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35ea11ff HV |
1 | /* |
2 | * Video capture interface for Linux version 2 | |
3 | * | |
4 | * A generic framework to process V4L2 ioctl commands. | |
5 | * | |
6 | * This program is free software; you can redistribute it and/or | |
7 | * modify it under the terms of the GNU General Public License | |
8 | * as published by the Free Software Foundation; either version | |
9 | * 2 of the License, or (at your option) any later version. | |
10 | * | |
d9b01449 | 11 | * Authors: Alan Cox, <alan@lxorguk.ukuu.org.uk> (version 1) |
35ea11ff HV |
12 | * Mauro Carvalho Chehab <mchehab@infradead.org> (version 2) |
13 | */ | |
14 | ||
15 | #include <linux/module.h> | |
5a0e3ad6 | 16 | #include <linux/slab.h> |
35ea11ff HV |
17 | #include <linux/types.h> |
18 | #include <linux/kernel.h> | |
ae6db515 | 19 | #include <linux/version.h> |
35ea11ff | 20 | |
35ea11ff HV |
21 | #include <linux/videodev2.h> |
22 | ||
35ea11ff HV |
23 | #include <media/v4l2-common.h> |
24 | #include <media/v4l2-ioctl.h> | |
11bbc1ca | 25 | #include <media/v4l2-ctrls.h> |
d3d7c963 SA |
26 | #include <media/v4l2-fh.h> |
27 | #include <media/v4l2-event.h> | |
99cd47bc | 28 | #include <media/v4l2-device.h> |
80b36e0f | 29 | #include <media/v4l2-chip-ident.h> |
35ea11ff HV |
30 | |
31 | #define dbgarg(cmd, fmt, arg...) \ | |
32 | do { \ | |
33 | if (vfd->debug & V4L2_DEBUG_IOCTL_ARG) { \ | |
34 | printk(KERN_DEBUG "%s: ", vfd->name); \ | |
35 | v4l_printk_ioctl(cmd); \ | |
36 | printk(" " fmt, ## arg); \ | |
37 | } \ | |
38 | } while (0) | |
39 | ||
40 | #define dbgarg2(fmt, arg...) \ | |
41 | do { \ | |
42 | if (vfd->debug & V4L2_DEBUG_IOCTL_ARG) \ | |
43 | printk(KERN_DEBUG "%s: " fmt, vfd->name, ## arg);\ | |
44 | } while (0) | |
45 | ||
d33fbcbb MCC |
46 | #define dbgarg3(fmt, arg...) \ |
47 | do { \ | |
48 | if (vfd->debug & V4L2_DEBUG_IOCTL_ARG) \ | |
49 | printk(KERN_CONT "%s: " fmt, vfd->name, ## arg);\ | |
50 | } while (0) | |
51 | ||
25985edc | 52 | /* Zero out the end of the struct pointed to by p. Everything after, but |
7ecc0cf9 TP |
53 | * not including, the specified field is cleared. */ |
54 | #define CLEAR_AFTER_FIELD(p, field) \ | |
55 | memset((u8 *)(p) + offsetof(typeof(*(p)), field) + sizeof((p)->field), \ | |
56 | 0, sizeof(*(p)) - offsetof(typeof(*(p)), field) - sizeof((p)->field)) | |
57 | ||
35ea11ff HV |
58 | struct std_descr { |
59 | v4l2_std_id std; | |
60 | const char *descr; | |
61 | }; | |
62 | ||
63 | static const struct std_descr standards[] = { | |
64 | { V4L2_STD_NTSC, "NTSC" }, | |
65 | { V4L2_STD_NTSC_M, "NTSC-M" }, | |
66 | { V4L2_STD_NTSC_M_JP, "NTSC-M-JP" }, | |
67 | { V4L2_STD_NTSC_M_KR, "NTSC-M-KR" }, | |
68 | { V4L2_STD_NTSC_443, "NTSC-443" }, | |
69 | { V4L2_STD_PAL, "PAL" }, | |
70 | { V4L2_STD_PAL_BG, "PAL-BG" }, | |
71 | { V4L2_STD_PAL_B, "PAL-B" }, | |
72 | { V4L2_STD_PAL_B1, "PAL-B1" }, | |
73 | { V4L2_STD_PAL_G, "PAL-G" }, | |
74 | { V4L2_STD_PAL_H, "PAL-H" }, | |
75 | { V4L2_STD_PAL_I, "PAL-I" }, | |
76 | { V4L2_STD_PAL_DK, "PAL-DK" }, | |
77 | { V4L2_STD_PAL_D, "PAL-D" }, | |
78 | { V4L2_STD_PAL_D1, "PAL-D1" }, | |
79 | { V4L2_STD_PAL_K, "PAL-K" }, | |
80 | { V4L2_STD_PAL_M, "PAL-M" }, | |
81 | { V4L2_STD_PAL_N, "PAL-N" }, | |
82 | { V4L2_STD_PAL_Nc, "PAL-Nc" }, | |
83 | { V4L2_STD_PAL_60, "PAL-60" }, | |
84 | { V4L2_STD_SECAM, "SECAM" }, | |
85 | { V4L2_STD_SECAM_B, "SECAM-B" }, | |
86 | { V4L2_STD_SECAM_G, "SECAM-G" }, | |
87 | { V4L2_STD_SECAM_H, "SECAM-H" }, | |
88 | { V4L2_STD_SECAM_DK, "SECAM-DK" }, | |
89 | { V4L2_STD_SECAM_D, "SECAM-D" }, | |
90 | { V4L2_STD_SECAM_K, "SECAM-K" }, | |
91 | { V4L2_STD_SECAM_K1, "SECAM-K1" }, | |
92 | { V4L2_STD_SECAM_L, "SECAM-L" }, | |
93 | { V4L2_STD_SECAM_LC, "SECAM-Lc" }, | |
94 | { 0, "Unknown" } | |
95 | }; | |
96 | ||
97 | /* video4linux standard ID conversion to standard name | |
98 | */ | |
99 | const char *v4l2_norm_to_name(v4l2_std_id id) | |
100 | { | |
101 | u32 myid = id; | |
102 | int i; | |
103 | ||
104 | /* HACK: ppc32 architecture doesn't have __ucmpdi2 function to handle | |
105 | 64 bit comparations. So, on that architecture, with some gcc | |
106 | variants, compilation fails. Currently, the max value is 30bit wide. | |
107 | */ | |
108 | BUG_ON(myid != id); | |
109 | ||
110 | for (i = 0; standards[i].std; i++) | |
111 | if (myid == standards[i].std) | |
112 | break; | |
113 | return standards[i].descr; | |
114 | } | |
115 | EXPORT_SYMBOL(v4l2_norm_to_name); | |
116 | ||
51f0b8d5 TP |
117 | /* Returns frame period for the given standard */ |
118 | void v4l2_video_std_frame_period(int id, struct v4l2_fract *frameperiod) | |
119 | { | |
120 | if (id & V4L2_STD_525_60) { | |
121 | frameperiod->numerator = 1001; | |
122 | frameperiod->denominator = 30000; | |
123 | } else { | |
124 | frameperiod->numerator = 1; | |
125 | frameperiod->denominator = 25; | |
126 | } | |
127 | } | |
128 | EXPORT_SYMBOL(v4l2_video_std_frame_period); | |
129 | ||
35ea11ff HV |
130 | /* Fill in the fields of a v4l2_standard structure according to the |
131 | 'id' and 'transmission' parameters. Returns negative on error. */ | |
132 | int v4l2_video_std_construct(struct v4l2_standard *vs, | |
133 | int id, const char *name) | |
134 | { | |
51f0b8d5 TP |
135 | vs->id = id; |
136 | v4l2_video_std_frame_period(id, &vs->frameperiod); | |
137 | vs->framelines = (id & V4L2_STD_525_60) ? 525 : 625; | |
35ea11ff HV |
138 | strlcpy(vs->name, name, sizeof(vs->name)); |
139 | return 0; | |
140 | } | |
141 | EXPORT_SYMBOL(v4l2_video_std_construct); | |
142 | ||
143 | /* ----------------------------------------------------------------- */ | |
144 | /* some arrays for pretty-printing debug messages of enum types */ | |
145 | ||
146 | const char *v4l2_field_names[] = { | |
147 | [V4L2_FIELD_ANY] = "any", | |
148 | [V4L2_FIELD_NONE] = "none", | |
149 | [V4L2_FIELD_TOP] = "top", | |
150 | [V4L2_FIELD_BOTTOM] = "bottom", | |
151 | [V4L2_FIELD_INTERLACED] = "interlaced", | |
152 | [V4L2_FIELD_SEQ_TB] = "seq-tb", | |
153 | [V4L2_FIELD_SEQ_BT] = "seq-bt", | |
154 | [V4L2_FIELD_ALTERNATE] = "alternate", | |
155 | [V4L2_FIELD_INTERLACED_TB] = "interlaced-tb", | |
156 | [V4L2_FIELD_INTERLACED_BT] = "interlaced-bt", | |
157 | }; | |
158 | EXPORT_SYMBOL(v4l2_field_names); | |
159 | ||
160 | const char *v4l2_type_names[] = { | |
161 | [V4L2_BUF_TYPE_VIDEO_CAPTURE] = "vid-cap", | |
162 | [V4L2_BUF_TYPE_VIDEO_OVERLAY] = "vid-overlay", | |
163 | [V4L2_BUF_TYPE_VIDEO_OUTPUT] = "vid-out", | |
164 | [V4L2_BUF_TYPE_VBI_CAPTURE] = "vbi-cap", | |
165 | [V4L2_BUF_TYPE_VBI_OUTPUT] = "vbi-out", | |
166 | [V4L2_BUF_TYPE_SLICED_VBI_CAPTURE] = "sliced-vbi-cap", | |
167 | [V4L2_BUF_TYPE_SLICED_VBI_OUTPUT] = "sliced-vbi-out", | |
168 | [V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY] = "vid-out-overlay", | |
f8f3914c PO |
169 | [V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE] = "vid-cap-mplane", |
170 | [V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE] = "vid-out-mplane", | |
35ea11ff HV |
171 | }; |
172 | EXPORT_SYMBOL(v4l2_type_names); | |
173 | ||
174 | static const char *v4l2_memory_names[] = { | |
175 | [V4L2_MEMORY_MMAP] = "mmap", | |
176 | [V4L2_MEMORY_USERPTR] = "userptr", | |
177 | [V4L2_MEMORY_OVERLAY] = "overlay", | |
178 | }; | |
179 | ||
180 | #define prt_names(a, arr) ((((a) >= 0) && ((a) < ARRAY_SIZE(arr))) ? \ | |
181 | arr[a] : "unknown") | |
182 | ||
183 | /* ------------------------------------------------------------------ */ | |
184 | /* debug help functions */ | |
35ea11ff HV |
185 | static const char *v4l2_ioctls[] = { |
186 | [_IOC_NR(VIDIOC_QUERYCAP)] = "VIDIOC_QUERYCAP", | |
187 | [_IOC_NR(VIDIOC_RESERVED)] = "VIDIOC_RESERVED", | |
188 | [_IOC_NR(VIDIOC_ENUM_FMT)] = "VIDIOC_ENUM_FMT", | |
189 | [_IOC_NR(VIDIOC_G_FMT)] = "VIDIOC_G_FMT", | |
190 | [_IOC_NR(VIDIOC_S_FMT)] = "VIDIOC_S_FMT", | |
191 | [_IOC_NR(VIDIOC_REQBUFS)] = "VIDIOC_REQBUFS", | |
192 | [_IOC_NR(VIDIOC_QUERYBUF)] = "VIDIOC_QUERYBUF", | |
193 | [_IOC_NR(VIDIOC_G_FBUF)] = "VIDIOC_G_FBUF", | |
194 | [_IOC_NR(VIDIOC_S_FBUF)] = "VIDIOC_S_FBUF", | |
195 | [_IOC_NR(VIDIOC_OVERLAY)] = "VIDIOC_OVERLAY", | |
196 | [_IOC_NR(VIDIOC_QBUF)] = "VIDIOC_QBUF", | |
197 | [_IOC_NR(VIDIOC_DQBUF)] = "VIDIOC_DQBUF", | |
198 | [_IOC_NR(VIDIOC_STREAMON)] = "VIDIOC_STREAMON", | |
199 | [_IOC_NR(VIDIOC_STREAMOFF)] = "VIDIOC_STREAMOFF", | |
200 | [_IOC_NR(VIDIOC_G_PARM)] = "VIDIOC_G_PARM", | |
201 | [_IOC_NR(VIDIOC_S_PARM)] = "VIDIOC_S_PARM", | |
202 | [_IOC_NR(VIDIOC_G_STD)] = "VIDIOC_G_STD", | |
203 | [_IOC_NR(VIDIOC_S_STD)] = "VIDIOC_S_STD", | |
204 | [_IOC_NR(VIDIOC_ENUMSTD)] = "VIDIOC_ENUMSTD", | |
205 | [_IOC_NR(VIDIOC_ENUMINPUT)] = "VIDIOC_ENUMINPUT", | |
206 | [_IOC_NR(VIDIOC_G_CTRL)] = "VIDIOC_G_CTRL", | |
207 | [_IOC_NR(VIDIOC_S_CTRL)] = "VIDIOC_S_CTRL", | |
208 | [_IOC_NR(VIDIOC_G_TUNER)] = "VIDIOC_G_TUNER", | |
209 | [_IOC_NR(VIDIOC_S_TUNER)] = "VIDIOC_S_TUNER", | |
210 | [_IOC_NR(VIDIOC_G_AUDIO)] = "VIDIOC_G_AUDIO", | |
211 | [_IOC_NR(VIDIOC_S_AUDIO)] = "VIDIOC_S_AUDIO", | |
212 | [_IOC_NR(VIDIOC_QUERYCTRL)] = "VIDIOC_QUERYCTRL", | |
213 | [_IOC_NR(VIDIOC_QUERYMENU)] = "VIDIOC_QUERYMENU", | |
214 | [_IOC_NR(VIDIOC_G_INPUT)] = "VIDIOC_G_INPUT", | |
215 | [_IOC_NR(VIDIOC_S_INPUT)] = "VIDIOC_S_INPUT", | |
216 | [_IOC_NR(VIDIOC_G_OUTPUT)] = "VIDIOC_G_OUTPUT", | |
217 | [_IOC_NR(VIDIOC_S_OUTPUT)] = "VIDIOC_S_OUTPUT", | |
218 | [_IOC_NR(VIDIOC_ENUMOUTPUT)] = "VIDIOC_ENUMOUTPUT", | |
219 | [_IOC_NR(VIDIOC_G_AUDOUT)] = "VIDIOC_G_AUDOUT", | |
220 | [_IOC_NR(VIDIOC_S_AUDOUT)] = "VIDIOC_S_AUDOUT", | |
221 | [_IOC_NR(VIDIOC_G_MODULATOR)] = "VIDIOC_G_MODULATOR", | |
222 | [_IOC_NR(VIDIOC_S_MODULATOR)] = "VIDIOC_S_MODULATOR", | |
223 | [_IOC_NR(VIDIOC_G_FREQUENCY)] = "VIDIOC_G_FREQUENCY", | |
224 | [_IOC_NR(VIDIOC_S_FREQUENCY)] = "VIDIOC_S_FREQUENCY", | |
225 | [_IOC_NR(VIDIOC_CROPCAP)] = "VIDIOC_CROPCAP", | |
226 | [_IOC_NR(VIDIOC_G_CROP)] = "VIDIOC_G_CROP", | |
227 | [_IOC_NR(VIDIOC_S_CROP)] = "VIDIOC_S_CROP", | |
228 | [_IOC_NR(VIDIOC_G_JPEGCOMP)] = "VIDIOC_G_JPEGCOMP", | |
229 | [_IOC_NR(VIDIOC_S_JPEGCOMP)] = "VIDIOC_S_JPEGCOMP", | |
230 | [_IOC_NR(VIDIOC_QUERYSTD)] = "VIDIOC_QUERYSTD", | |
231 | [_IOC_NR(VIDIOC_TRY_FMT)] = "VIDIOC_TRY_FMT", | |
232 | [_IOC_NR(VIDIOC_ENUMAUDIO)] = "VIDIOC_ENUMAUDIO", | |
233 | [_IOC_NR(VIDIOC_ENUMAUDOUT)] = "VIDIOC_ENUMAUDOUT", | |
234 | [_IOC_NR(VIDIOC_G_PRIORITY)] = "VIDIOC_G_PRIORITY", | |
235 | [_IOC_NR(VIDIOC_S_PRIORITY)] = "VIDIOC_S_PRIORITY", | |
236 | [_IOC_NR(VIDIOC_G_SLICED_VBI_CAP)] = "VIDIOC_G_SLICED_VBI_CAP", | |
237 | [_IOC_NR(VIDIOC_LOG_STATUS)] = "VIDIOC_LOG_STATUS", | |
238 | [_IOC_NR(VIDIOC_G_EXT_CTRLS)] = "VIDIOC_G_EXT_CTRLS", | |
239 | [_IOC_NR(VIDIOC_S_EXT_CTRLS)] = "VIDIOC_S_EXT_CTRLS", | |
240 | [_IOC_NR(VIDIOC_TRY_EXT_CTRLS)] = "VIDIOC_TRY_EXT_CTRLS", | |
241 | #if 1 | |
242 | [_IOC_NR(VIDIOC_ENUM_FRAMESIZES)] = "VIDIOC_ENUM_FRAMESIZES", | |
243 | [_IOC_NR(VIDIOC_ENUM_FRAMEINTERVALS)] = "VIDIOC_ENUM_FRAMEINTERVALS", | |
244 | [_IOC_NR(VIDIOC_G_ENC_INDEX)] = "VIDIOC_G_ENC_INDEX", | |
245 | [_IOC_NR(VIDIOC_ENCODER_CMD)] = "VIDIOC_ENCODER_CMD", | |
246 | [_IOC_NR(VIDIOC_TRY_ENCODER_CMD)] = "VIDIOC_TRY_ENCODER_CMD", | |
247 | ||
248 | [_IOC_NR(VIDIOC_DBG_S_REGISTER)] = "VIDIOC_DBG_S_REGISTER", | |
249 | [_IOC_NR(VIDIOC_DBG_G_REGISTER)] = "VIDIOC_DBG_G_REGISTER", | |
250 | ||
aecde8b5 | 251 | [_IOC_NR(VIDIOC_DBG_G_CHIP_IDENT)] = "VIDIOC_DBG_G_CHIP_IDENT", |
35ea11ff HV |
252 | [_IOC_NR(VIDIOC_S_HW_FREQ_SEEK)] = "VIDIOC_S_HW_FREQ_SEEK", |
253 | #endif | |
b6456c0c MK |
254 | [_IOC_NR(VIDIOC_ENUM_DV_PRESETS)] = "VIDIOC_ENUM_DV_PRESETS", |
255 | [_IOC_NR(VIDIOC_S_DV_PRESET)] = "VIDIOC_S_DV_PRESET", | |
256 | [_IOC_NR(VIDIOC_G_DV_PRESET)] = "VIDIOC_G_DV_PRESET", | |
257 | [_IOC_NR(VIDIOC_QUERY_DV_PRESET)] = "VIDIOC_QUERY_DV_PRESET", | |
258 | [_IOC_NR(VIDIOC_S_DV_TIMINGS)] = "VIDIOC_S_DV_TIMINGS", | |
259 | [_IOC_NR(VIDIOC_G_DV_TIMINGS)] = "VIDIOC_G_DV_TIMINGS", | |
fda10214 SA |
260 | [_IOC_NR(VIDIOC_DQEVENT)] = "VIDIOC_DQEVENT", |
261 | [_IOC_NR(VIDIOC_SUBSCRIBE_EVENT)] = "VIDIOC_SUBSCRIBE_EVENT", | |
262 | [_IOC_NR(VIDIOC_UNSUBSCRIBE_EVENT)] = "VIDIOC_UNSUBSCRIBE_EVENT", | |
35ea11ff HV |
263 | }; |
264 | #define V4L2_IOCTLS ARRAY_SIZE(v4l2_ioctls) | |
265 | ||
35ea11ff HV |
266 | /* Common ioctl debug function. This function can be used by |
267 | external ioctl messages as well as internal V4L ioctl */ | |
268 | void v4l_printk_ioctl(unsigned int cmd) | |
269 | { | |
270 | char *dir, *type; | |
271 | ||
272 | switch (_IOC_TYPE(cmd)) { | |
273 | case 'd': | |
78a3b4db HV |
274 | type = "v4l2_int"; |
275 | break; | |
35ea11ff HV |
276 | case 'V': |
277 | if (_IOC_NR(cmd) >= V4L2_IOCTLS) { | |
278 | type = "v4l2"; | |
279 | break; | |
280 | } | |
281 | printk("%s", v4l2_ioctls[_IOC_NR(cmd)]); | |
282 | return; | |
283 | default: | |
284 | type = "unknown"; | |
285 | } | |
286 | ||
287 | switch (_IOC_DIR(cmd)) { | |
288 | case _IOC_NONE: dir = "--"; break; | |
289 | case _IOC_READ: dir = "r-"; break; | |
290 | case _IOC_WRITE: dir = "-w"; break; | |
291 | case _IOC_READ | _IOC_WRITE: dir = "rw"; break; | |
292 | default: dir = "*ERR*"; break; | |
293 | } | |
294 | printk("%s ioctl '%c', dir=%s, #%d (0x%08x)", | |
295 | type, _IOC_TYPE(cmd), dir, _IOC_NR(cmd), cmd); | |
296 | } | |
297 | EXPORT_SYMBOL(v4l_printk_ioctl); | |
298 | ||
35ea11ff HV |
299 | static void dbgbuf(unsigned int cmd, struct video_device *vfd, |
300 | struct v4l2_buffer *p) | |
301 | { | |
302 | struct v4l2_timecode *tc = &p->timecode; | |
d14e6d76 PO |
303 | struct v4l2_plane *plane; |
304 | int i; | |
35ea11ff HV |
305 | |
306 | dbgarg(cmd, "%02ld:%02d:%02d.%08ld index=%d, type=%s, " | |
d14e6d76 | 307 | "flags=0x%08d, field=%0d, sequence=%d, memory=%s\n", |
35ea11ff HV |
308 | p->timestamp.tv_sec / 3600, |
309 | (int)(p->timestamp.tv_sec / 60) % 60, | |
310 | (int)(p->timestamp.tv_sec % 60), | |
b045979d | 311 | (long)p->timestamp.tv_usec, |
35ea11ff HV |
312 | p->index, |
313 | prt_names(p->type, v4l2_type_names), | |
d14e6d76 PO |
314 | p->flags, p->field, p->sequence, |
315 | prt_names(p->memory, v4l2_memory_names)); | |
316 | ||
317 | if (V4L2_TYPE_IS_MULTIPLANAR(p->type) && p->m.planes) { | |
318 | for (i = 0; i < p->length; ++i) { | |
319 | plane = &p->m.planes[i]; | |
320 | dbgarg2("plane %d: bytesused=%d, data_offset=0x%08x " | |
321 | "offset/userptr=0x%08lx, length=%d\n", | |
322 | i, plane->bytesused, plane->data_offset, | |
323 | plane->m.userptr, plane->length); | |
324 | } | |
325 | } else { | |
326 | dbgarg2("bytesused=%d, offset/userptr=0x%08lx, length=%d\n", | |
327 | p->bytesused, p->m.userptr, p->length); | |
328 | } | |
329 | ||
35ea11ff HV |
330 | dbgarg2("timecode=%02d:%02d:%02d type=%d, " |
331 | "flags=0x%08d, frames=%d, userbits=0x%08x\n", | |
332 | tc->hours, tc->minutes, tc->seconds, | |
333 | tc->type, tc->flags, tc->frames, *(__u32 *)tc->userbits); | |
334 | } | |
335 | ||
336 | static inline void dbgrect(struct video_device *vfd, char *s, | |
337 | struct v4l2_rect *r) | |
338 | { | |
339 | dbgarg2("%sRect start at %dx%d, size=%dx%d\n", s, r->left, r->top, | |
340 | r->width, r->height); | |
341 | }; | |
342 | ||
343 | static inline void v4l_print_pix_fmt(struct video_device *vfd, | |
344 | struct v4l2_pix_format *fmt) | |
345 | { | |
346 | dbgarg2("width=%d, height=%d, format=%c%c%c%c, field=%s, " | |
347 | "bytesperline=%d sizeimage=%d, colorspace=%d\n", | |
348 | fmt->width, fmt->height, | |
349 | (fmt->pixelformat & 0xff), | |
350 | (fmt->pixelformat >> 8) & 0xff, | |
351 | (fmt->pixelformat >> 16) & 0xff, | |
352 | (fmt->pixelformat >> 24) & 0xff, | |
353 | prt_names(fmt->field, v4l2_field_names), | |
354 | fmt->bytesperline, fmt->sizeimage, fmt->colorspace); | |
355 | }; | |
356 | ||
d14e6d76 PO |
357 | static inline void v4l_print_pix_fmt_mplane(struct video_device *vfd, |
358 | struct v4l2_pix_format_mplane *fmt) | |
359 | { | |
360 | int i; | |
361 | ||
362 | dbgarg2("width=%d, height=%d, format=%c%c%c%c, field=%s, " | |
363 | "colorspace=%d, num_planes=%d\n", | |
364 | fmt->width, fmt->height, | |
365 | (fmt->pixelformat & 0xff), | |
366 | (fmt->pixelformat >> 8) & 0xff, | |
367 | (fmt->pixelformat >> 16) & 0xff, | |
368 | (fmt->pixelformat >> 24) & 0xff, | |
369 | prt_names(fmt->field, v4l2_field_names), | |
370 | fmt->colorspace, fmt->num_planes); | |
371 | ||
372 | for (i = 0; i < fmt->num_planes; ++i) | |
373 | dbgarg2("plane %d: bytesperline=%d sizeimage=%d\n", i, | |
374 | fmt->plane_fmt[i].bytesperline, | |
375 | fmt->plane_fmt[i].sizeimage); | |
376 | } | |
377 | ||
35ea11ff HV |
378 | static inline void v4l_print_ext_ctrls(unsigned int cmd, |
379 | struct video_device *vfd, struct v4l2_ext_controls *c, int show_vals) | |
380 | { | |
381 | __u32 i; | |
382 | ||
383 | if (!(vfd->debug & V4L2_DEBUG_IOCTL_ARG)) | |
384 | return; | |
385 | dbgarg(cmd, ""); | |
386 | printk(KERN_CONT "class=0x%x", c->ctrl_class); | |
387 | for (i = 0; i < c->count; i++) { | |
6b5a9492 | 388 | if (show_vals && !c->controls[i].size) |
35ea11ff HV |
389 | printk(KERN_CONT " id/val=0x%x/0x%x", |
390 | c->controls[i].id, c->controls[i].value); | |
391 | else | |
6b5a9492 HV |
392 | printk(KERN_CONT " id=0x%x,size=%u", |
393 | c->controls[i].id, c->controls[i].size); | |
35ea11ff HV |
394 | } |
395 | printk(KERN_CONT "\n"); | |
396 | }; | |
397 | ||
398 | static inline int check_ext_ctrls(struct v4l2_ext_controls *c, int allow_priv) | |
399 | { | |
400 | __u32 i; | |
401 | ||
402 | /* zero the reserved fields */ | |
403 | c->reserved[0] = c->reserved[1] = 0; | |
6b5a9492 | 404 | for (i = 0; i < c->count; i++) |
35ea11ff | 405 | c->controls[i].reserved2[0] = 0; |
6b5a9492 | 406 | |
35ea11ff HV |
407 | /* V4L2_CID_PRIVATE_BASE cannot be used as control class |
408 | when using extended controls. | |
409 | Only when passed in through VIDIOC_G_CTRL and VIDIOC_S_CTRL | |
410 | is it allowed for backwards compatibility. | |
411 | */ | |
412 | if (!allow_priv && c->ctrl_class == V4L2_CID_PRIVATE_BASE) | |
413 | return 0; | |
414 | /* Check that all controls are from the same control class. */ | |
415 | for (i = 0; i < c->count; i++) { | |
416 | if (V4L2_CTRL_ID2CLASS(c->controls[i].id) != c->ctrl_class) { | |
417 | c->error_idx = i; | |
418 | return 0; | |
419 | } | |
420 | } | |
421 | return 1; | |
422 | } | |
423 | ||
a399810c | 424 | static int check_fmt(const struct v4l2_ioctl_ops *ops, enum v4l2_buf_type type) |
35ea11ff | 425 | { |
a399810c HV |
426 | if (ops == NULL) |
427 | return -EINVAL; | |
428 | ||
35ea11ff HV |
429 | switch (type) { |
430 | case V4L2_BUF_TYPE_VIDEO_CAPTURE: | |
d14e6d76 PO |
431 | if (ops->vidioc_g_fmt_vid_cap || |
432 | ops->vidioc_g_fmt_vid_cap_mplane) | |
433 | return 0; | |
434 | break; | |
435 | case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE: | |
436 | if (ops->vidioc_g_fmt_vid_cap_mplane) | |
35ea11ff HV |
437 | return 0; |
438 | break; | |
439 | case V4L2_BUF_TYPE_VIDEO_OVERLAY: | |
1175d613 | 440 | if (ops->vidioc_g_fmt_vid_overlay) |
35ea11ff HV |
441 | return 0; |
442 | break; | |
443 | case V4L2_BUF_TYPE_VIDEO_OUTPUT: | |
d14e6d76 PO |
444 | if (ops->vidioc_g_fmt_vid_out || |
445 | ops->vidioc_g_fmt_vid_out_mplane) | |
446 | return 0; | |
447 | break; | |
448 | case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE: | |
449 | if (ops->vidioc_g_fmt_vid_out_mplane) | |
35ea11ff HV |
450 | return 0; |
451 | break; | |
452 | case V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY: | |
1175d613 | 453 | if (ops->vidioc_g_fmt_vid_out_overlay) |
35ea11ff HV |
454 | return 0; |
455 | break; | |
456 | case V4L2_BUF_TYPE_VBI_CAPTURE: | |
1175d613 | 457 | if (ops->vidioc_g_fmt_vbi_cap) |
35ea11ff HV |
458 | return 0; |
459 | break; | |
460 | case V4L2_BUF_TYPE_VBI_OUTPUT: | |
1175d613 | 461 | if (ops->vidioc_g_fmt_vbi_out) |
35ea11ff HV |
462 | return 0; |
463 | break; | |
464 | case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE: | |
1175d613 | 465 | if (ops->vidioc_g_fmt_sliced_vbi_cap) |
35ea11ff HV |
466 | return 0; |
467 | break; | |
468 | case V4L2_BUF_TYPE_SLICED_VBI_OUTPUT: | |
1175d613 | 469 | if (ops->vidioc_g_fmt_sliced_vbi_out) |
35ea11ff HV |
470 | return 0; |
471 | break; | |
472 | case V4L2_BUF_TYPE_PRIVATE: | |
1175d613 | 473 | if (ops->vidioc_g_fmt_type_private) |
35ea11ff HV |
474 | return 0; |
475 | break; | |
476 | } | |
477 | return -EINVAL; | |
478 | } | |
479 | ||
d14e6d76 PO |
480 | /** |
481 | * fmt_sp_to_mp() - Convert a single-plane format to its multi-planar 1-plane | |
482 | * equivalent | |
483 | */ | |
484 | static int fmt_sp_to_mp(const struct v4l2_format *f_sp, | |
485 | struct v4l2_format *f_mp) | |
486 | { | |
487 | struct v4l2_pix_format_mplane *pix_mp = &f_mp->fmt.pix_mp; | |
488 | const struct v4l2_pix_format *pix = &f_sp->fmt.pix; | |
489 | ||
490 | if (f_sp->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) | |
491 | f_mp->type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE; | |
492 | else if (f_sp->type == V4L2_BUF_TYPE_VIDEO_OUTPUT) | |
493 | f_mp->type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE; | |
494 | else | |
495 | return -EINVAL; | |
496 | ||
497 | pix_mp->width = pix->width; | |
498 | pix_mp->height = pix->height; | |
499 | pix_mp->pixelformat = pix->pixelformat; | |
500 | pix_mp->field = pix->field; | |
501 | pix_mp->colorspace = pix->colorspace; | |
502 | pix_mp->num_planes = 1; | |
503 | pix_mp->plane_fmt[0].sizeimage = pix->sizeimage; | |
504 | pix_mp->plane_fmt[0].bytesperline = pix->bytesperline; | |
505 | ||
506 | return 0; | |
507 | } | |
508 | ||
509 | /** | |
510 | * fmt_mp_to_sp() - Convert a multi-planar 1-plane format to its single-planar | |
511 | * equivalent | |
512 | */ | |
513 | static int fmt_mp_to_sp(const struct v4l2_format *f_mp, | |
514 | struct v4l2_format *f_sp) | |
515 | { | |
516 | const struct v4l2_pix_format_mplane *pix_mp = &f_mp->fmt.pix_mp; | |
517 | struct v4l2_pix_format *pix = &f_sp->fmt.pix; | |
518 | ||
519 | if (f_mp->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) | |
520 | f_sp->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; | |
521 | else if (f_mp->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) | |
522 | f_sp->type = V4L2_BUF_TYPE_VIDEO_OUTPUT; | |
523 | else | |
524 | return -EINVAL; | |
525 | ||
526 | pix->width = pix_mp->width; | |
527 | pix->height = pix_mp->height; | |
528 | pix->pixelformat = pix_mp->pixelformat; | |
529 | pix->field = pix_mp->field; | |
530 | pix->colorspace = pix_mp->colorspace; | |
531 | pix->sizeimage = pix_mp->plane_fmt[0].sizeimage; | |
532 | pix->bytesperline = pix_mp->plane_fmt[0].bytesperline; | |
533 | ||
534 | return 0; | |
535 | } | |
536 | ||
069b7479 | 537 | static long __video_do_ioctl(struct file *file, |
35ea11ff HV |
538 | unsigned int cmd, void *arg) |
539 | { | |
540 | struct video_device *vfd = video_devdata(file); | |
a399810c | 541 | const struct v4l2_ioctl_ops *ops = vfd->ioctl_ops; |
d5fbf32f | 542 | void *fh = file->private_data; |
99cd47bc | 543 | struct v4l2_fh *vfh = NULL; |
d14e6d76 | 544 | struct v4l2_format f_copy; |
b1a873a3 | 545 | int use_fh_prio = 0; |
069b7479 | 546 | long ret = -EINVAL; |
35ea11ff | 547 | |
6a717883 HV |
548 | if (ops == NULL) { |
549 | printk(KERN_WARNING "videodev: \"%s\" has no ioctl_ops.\n", | |
550 | vfd->name); | |
551 | return -EINVAL; | |
552 | } | |
553 | ||
35ea11ff HV |
554 | if ((vfd->debug & V4L2_DEBUG_IOCTL) && |
555 | !(vfd->debug & V4L2_DEBUG_IOCTL_ARG)) { | |
556 | v4l_print_ioctl(vfd->name, cmd); | |
557 | printk(KERN_CONT "\n"); | |
558 | } | |
559 | ||
b1a873a3 | 560 | if (test_bit(V4L2_FL_USES_V4L2_FH, &vfd->flags)) { |
99cd47bc | 561 | vfh = file->private_data; |
b1a873a3 HV |
562 | use_fh_prio = test_bit(V4L2_FL_USE_FH_PRIO, &vfd->flags); |
563 | } | |
99cd47bc | 564 | |
b1a873a3 | 565 | if (use_fh_prio) { |
99cd47bc HV |
566 | switch (cmd) { |
567 | case VIDIOC_S_CTRL: | |
568 | case VIDIOC_S_STD: | |
569 | case VIDIOC_S_INPUT: | |
570 | case VIDIOC_S_OUTPUT: | |
571 | case VIDIOC_S_TUNER: | |
572 | case VIDIOC_S_FREQUENCY: | |
573 | case VIDIOC_S_FMT: | |
574 | case VIDIOC_S_CROP: | |
575 | case VIDIOC_S_AUDIO: | |
576 | case VIDIOC_S_AUDOUT: | |
577 | case VIDIOC_S_EXT_CTRLS: | |
578 | case VIDIOC_S_FBUF: | |
579 | case VIDIOC_S_PRIORITY: | |
580 | case VIDIOC_S_DV_PRESET: | |
581 | case VIDIOC_S_DV_TIMINGS: | |
582 | case VIDIOC_S_JPEGCOMP: | |
583 | case VIDIOC_S_MODULATOR: | |
584 | case VIDIOC_S_PARM: | |
585 | case VIDIOC_S_HW_FREQ_SEEK: | |
586 | case VIDIOC_ENCODER_CMD: | |
587 | case VIDIOC_OVERLAY: | |
588 | case VIDIOC_REQBUFS: | |
589 | case VIDIOC_STREAMON: | |
590 | case VIDIOC_STREAMOFF: | |
591 | ret = v4l2_prio_check(vfd->prio, vfh->prio); | |
592 | if (ret) | |
593 | goto exit_prio; | |
594 | ret = -EINVAL; | |
595 | break; | |
596 | } | |
597 | } | |
598 | ||
6a717883 | 599 | switch (cmd) { |
a399810c | 600 | |
35ea11ff HV |
601 | /* --- capabilities ------------------------------------------ */ |
602 | case VIDIOC_QUERYCAP: | |
603 | { | |
604 | struct v4l2_capability *cap = (struct v4l2_capability *)arg; | |
35ea11ff | 605 | |
a399810c | 606 | if (!ops->vidioc_querycap) |
35ea11ff HV |
607 | break; |
608 | ||
ae6db515 | 609 | cap->version = LINUX_VERSION_CODE; |
a399810c | 610 | ret = ops->vidioc_querycap(file, fh, cap); |
35ea11ff HV |
611 | if (!ret) |
612 | dbgarg(cmd, "driver=%s, card=%s, bus=%s, " | |
613 | "version=0x%08x, " | |
614 | "capabilities=0x%08x\n", | |
615 | cap->driver, cap->card, cap->bus_info, | |
616 | cap->version, | |
617 | cap->capabilities); | |
618 | break; | |
619 | } | |
620 | ||
621 | /* --- priority ------------------------------------------ */ | |
622 | case VIDIOC_G_PRIORITY: | |
623 | { | |
624 | enum v4l2_priority *p = arg; | |
625 | ||
99cd47bc HV |
626 | if (ops->vidioc_g_priority) { |
627 | ret = ops->vidioc_g_priority(file, fh, p); | |
b1a873a3 | 628 | } else if (use_fh_prio) { |
99cd47bc HV |
629 | *p = v4l2_prio_max(&vfd->v4l2_dev->prio); |
630 | ret = 0; | |
631 | } | |
35ea11ff HV |
632 | if (!ret) |
633 | dbgarg(cmd, "priority is %d\n", *p); | |
634 | break; | |
635 | } | |
636 | case VIDIOC_S_PRIORITY: | |
637 | { | |
638 | enum v4l2_priority *p = arg; | |
639 | ||
b1a873a3 | 640 | if (!ops->vidioc_s_priority && !use_fh_prio) |
99cd47bc | 641 | break; |
35ea11ff | 642 | dbgarg(cmd, "setting priority to %d\n", *p); |
99cd47bc HV |
643 | if (ops->vidioc_s_priority) |
644 | ret = ops->vidioc_s_priority(file, fh, *p); | |
645 | else | |
646 | ret = v4l2_prio_change(&vfd->v4l2_dev->prio, &vfh->prio, *p); | |
35ea11ff HV |
647 | break; |
648 | } | |
649 | ||
650 | /* --- capture ioctls ---------------------------------------- */ | |
651 | case VIDIOC_ENUM_FMT: | |
652 | { | |
653 | struct v4l2_fmtdesc *f = arg; | |
35ea11ff | 654 | |
19c96e4b | 655 | switch (f->type) { |
35ea11ff | 656 | case V4L2_BUF_TYPE_VIDEO_CAPTURE: |
a399810c HV |
657 | if (ops->vidioc_enum_fmt_vid_cap) |
658 | ret = ops->vidioc_enum_fmt_vid_cap(file, fh, f); | |
35ea11ff | 659 | break; |
d14e6d76 PO |
660 | case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE: |
661 | if (ops->vidioc_enum_fmt_vid_cap_mplane) | |
662 | ret = ops->vidioc_enum_fmt_vid_cap_mplane(file, | |
663 | fh, f); | |
664 | break; | |
35ea11ff | 665 | case V4L2_BUF_TYPE_VIDEO_OVERLAY: |
a399810c HV |
666 | if (ops->vidioc_enum_fmt_vid_overlay) |
667 | ret = ops->vidioc_enum_fmt_vid_overlay(file, | |
35ea11ff HV |
668 | fh, f); |
669 | break; | |
35ea11ff | 670 | case V4L2_BUF_TYPE_VIDEO_OUTPUT: |
a399810c HV |
671 | if (ops->vidioc_enum_fmt_vid_out) |
672 | ret = ops->vidioc_enum_fmt_vid_out(file, fh, f); | |
35ea11ff | 673 | break; |
d14e6d76 PO |
674 | case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE: |
675 | if (ops->vidioc_enum_fmt_vid_out_mplane) | |
676 | ret = ops->vidioc_enum_fmt_vid_out_mplane(file, | |
677 | fh, f); | |
678 | break; | |
35ea11ff | 679 | case V4L2_BUF_TYPE_PRIVATE: |
a399810c HV |
680 | if (ops->vidioc_enum_fmt_type_private) |
681 | ret = ops->vidioc_enum_fmt_type_private(file, | |
35ea11ff HV |
682 | fh, f); |
683 | break; | |
684 | default: | |
685 | break; | |
686 | } | |
687 | if (!ret) | |
688 | dbgarg(cmd, "index=%d, type=%d, flags=%d, " | |
689 | "pixelformat=%c%c%c%c, description='%s'\n", | |
690 | f->index, f->type, f->flags, | |
691 | (f->pixelformat & 0xff), | |
692 | (f->pixelformat >> 8) & 0xff, | |
693 | (f->pixelformat >> 16) & 0xff, | |
694 | (f->pixelformat >> 24) & 0xff, | |
695 | f->description); | |
696 | break; | |
697 | } | |
698 | case VIDIOC_G_FMT: | |
699 | { | |
700 | struct v4l2_format *f = (struct v4l2_format *)arg; | |
701 | ||
35ea11ff HV |
702 | /* FIXME: Should be one dump per type */ |
703 | dbgarg(cmd, "type=%s\n", prt_names(f->type, v4l2_type_names)); | |
704 | ||
705 | switch (f->type) { | |
706 | case V4L2_BUF_TYPE_VIDEO_CAPTURE: | |
d14e6d76 | 707 | if (ops->vidioc_g_fmt_vid_cap) { |
a399810c | 708 | ret = ops->vidioc_g_fmt_vid_cap(file, fh, f); |
d14e6d76 PO |
709 | } else if (ops->vidioc_g_fmt_vid_cap_mplane) { |
710 | if (fmt_sp_to_mp(f, &f_copy)) | |
711 | break; | |
712 | ret = ops->vidioc_g_fmt_vid_cap_mplane(file, fh, | |
713 | &f_copy); | |
714 | if (ret) | |
715 | break; | |
716 | ||
717 | /* Driver is currently in multi-planar format, | |
718 | * we can't return it in single-planar API*/ | |
719 | if (f_copy.fmt.pix_mp.num_planes > 1) { | |
720 | ret = -EBUSY; | |
721 | break; | |
722 | } | |
723 | ||
724 | ret = fmt_mp_to_sp(&f_copy, f); | |
725 | } | |
35ea11ff HV |
726 | if (!ret) |
727 | v4l_print_pix_fmt(vfd, &f->fmt.pix); | |
728 | break; | |
d14e6d76 PO |
729 | case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE: |
730 | if (ops->vidioc_g_fmt_vid_cap_mplane) { | |
731 | ret = ops->vidioc_g_fmt_vid_cap_mplane(file, | |
732 | fh, f); | |
733 | } else if (ops->vidioc_g_fmt_vid_cap) { | |
734 | if (fmt_mp_to_sp(f, &f_copy)) | |
735 | break; | |
736 | ret = ops->vidioc_g_fmt_vid_cap(file, | |
737 | fh, &f_copy); | |
738 | if (ret) | |
739 | break; | |
740 | ||
741 | ret = fmt_sp_to_mp(&f_copy, f); | |
742 | } | |
743 | if (!ret) | |
744 | v4l_print_pix_fmt_mplane(vfd, &f->fmt.pix_mp); | |
745 | break; | |
35ea11ff | 746 | case V4L2_BUF_TYPE_VIDEO_OVERLAY: |
a399810c HV |
747 | if (ops->vidioc_g_fmt_vid_overlay) |
748 | ret = ops->vidioc_g_fmt_vid_overlay(file, | |
35ea11ff HV |
749 | fh, f); |
750 | break; | |
751 | case V4L2_BUF_TYPE_VIDEO_OUTPUT: | |
d14e6d76 | 752 | if (ops->vidioc_g_fmt_vid_out) { |
a399810c | 753 | ret = ops->vidioc_g_fmt_vid_out(file, fh, f); |
d14e6d76 PO |
754 | } else if (ops->vidioc_g_fmt_vid_out_mplane) { |
755 | if (fmt_sp_to_mp(f, &f_copy)) | |
756 | break; | |
757 | ret = ops->vidioc_g_fmt_vid_out_mplane(file, fh, | |
758 | &f_copy); | |
759 | if (ret) | |
760 | break; | |
761 | ||
762 | /* Driver is currently in multi-planar format, | |
763 | * we can't return it in single-planar API*/ | |
764 | if (f_copy.fmt.pix_mp.num_planes > 1) { | |
765 | ret = -EBUSY; | |
766 | break; | |
767 | } | |
768 | ||
769 | ret = fmt_mp_to_sp(&f_copy, f); | |
770 | } | |
35ea11ff HV |
771 | if (!ret) |
772 | v4l_print_pix_fmt(vfd, &f->fmt.pix); | |
773 | break; | |
d14e6d76 PO |
774 | case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE: |
775 | if (ops->vidioc_g_fmt_vid_out_mplane) { | |
776 | ret = ops->vidioc_g_fmt_vid_out_mplane(file, | |
777 | fh, f); | |
778 | } else if (ops->vidioc_g_fmt_vid_out) { | |
779 | if (fmt_mp_to_sp(f, &f_copy)) | |
780 | break; | |
781 | ret = ops->vidioc_g_fmt_vid_out(file, | |
782 | fh, &f_copy); | |
783 | if (ret) | |
784 | break; | |
785 | ||
786 | ret = fmt_sp_to_mp(&f_copy, f); | |
787 | } | |
788 | if (!ret) | |
789 | v4l_print_pix_fmt_mplane(vfd, &f->fmt.pix_mp); | |
790 | break; | |
35ea11ff | 791 | case V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY: |
a399810c HV |
792 | if (ops->vidioc_g_fmt_vid_out_overlay) |
793 | ret = ops->vidioc_g_fmt_vid_out_overlay(file, | |
35ea11ff HV |
794 | fh, f); |
795 | break; | |
796 | case V4L2_BUF_TYPE_VBI_CAPTURE: | |
a399810c HV |
797 | if (ops->vidioc_g_fmt_vbi_cap) |
798 | ret = ops->vidioc_g_fmt_vbi_cap(file, fh, f); | |
35ea11ff HV |
799 | break; |
800 | case V4L2_BUF_TYPE_VBI_OUTPUT: | |
a399810c HV |
801 | if (ops->vidioc_g_fmt_vbi_out) |
802 | ret = ops->vidioc_g_fmt_vbi_out(file, fh, f); | |
35ea11ff HV |
803 | break; |
804 | case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE: | |
a399810c HV |
805 | if (ops->vidioc_g_fmt_sliced_vbi_cap) |
806 | ret = ops->vidioc_g_fmt_sliced_vbi_cap(file, | |
35ea11ff HV |
807 | fh, f); |
808 | break; | |
809 | case V4L2_BUF_TYPE_SLICED_VBI_OUTPUT: | |
a399810c HV |
810 | if (ops->vidioc_g_fmt_sliced_vbi_out) |
811 | ret = ops->vidioc_g_fmt_sliced_vbi_out(file, | |
35ea11ff HV |
812 | fh, f); |
813 | break; | |
814 | case V4L2_BUF_TYPE_PRIVATE: | |
a399810c HV |
815 | if (ops->vidioc_g_fmt_type_private) |
816 | ret = ops->vidioc_g_fmt_type_private(file, | |
35ea11ff HV |
817 | fh, f); |
818 | break; | |
819 | } | |
820 | ||
821 | break; | |
822 | } | |
823 | case VIDIOC_S_FMT: | |
824 | { | |
825 | struct v4l2_format *f = (struct v4l2_format *)arg; | |
826 | ||
827 | /* FIXME: Should be one dump per type */ | |
828 | dbgarg(cmd, "type=%s\n", prt_names(f->type, v4l2_type_names)); | |
829 | ||
830 | switch (f->type) { | |
831 | case V4L2_BUF_TYPE_VIDEO_CAPTURE: | |
7ecc0cf9 | 832 | CLEAR_AFTER_FIELD(f, fmt.pix); |
35ea11ff | 833 | v4l_print_pix_fmt(vfd, &f->fmt.pix); |
d14e6d76 | 834 | if (ops->vidioc_s_fmt_vid_cap) { |
a399810c | 835 | ret = ops->vidioc_s_fmt_vid_cap(file, fh, f); |
d14e6d76 PO |
836 | } else if (ops->vidioc_s_fmt_vid_cap_mplane) { |
837 | if (fmt_sp_to_mp(f, &f_copy)) | |
838 | break; | |
839 | ret = ops->vidioc_s_fmt_vid_cap_mplane(file, fh, | |
840 | &f_copy); | |
841 | if (ret) | |
842 | break; | |
843 | ||
844 | if (f_copy.fmt.pix_mp.num_planes > 1) { | |
845 | /* Drivers shouldn't adjust from 1-plane | |
846 | * to more than 1-plane formats */ | |
847 | ret = -EBUSY; | |
848 | WARN_ON(1); | |
849 | break; | |
850 | } | |
851 | ||
852 | ret = fmt_mp_to_sp(&f_copy, f); | |
853 | } | |
854 | break; | |
855 | case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE: | |
856 | CLEAR_AFTER_FIELD(f, fmt.pix_mp); | |
857 | v4l_print_pix_fmt_mplane(vfd, &f->fmt.pix_mp); | |
858 | if (ops->vidioc_s_fmt_vid_cap_mplane) { | |
859 | ret = ops->vidioc_s_fmt_vid_cap_mplane(file, | |
860 | fh, f); | |
861 | } else if (ops->vidioc_s_fmt_vid_cap && | |
862 | f->fmt.pix_mp.num_planes == 1) { | |
863 | if (fmt_mp_to_sp(f, &f_copy)) | |
864 | break; | |
865 | ret = ops->vidioc_s_fmt_vid_cap(file, | |
866 | fh, &f_copy); | |
867 | if (ret) | |
868 | break; | |
869 | ||
870 | ret = fmt_sp_to_mp(&f_copy, f); | |
871 | } | |
35ea11ff HV |
872 | break; |
873 | case V4L2_BUF_TYPE_VIDEO_OVERLAY: | |
7ecc0cf9 | 874 | CLEAR_AFTER_FIELD(f, fmt.win); |
a399810c HV |
875 | if (ops->vidioc_s_fmt_vid_overlay) |
876 | ret = ops->vidioc_s_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); |
35ea11ff | 881 | v4l_print_pix_fmt(vfd, &f->fmt.pix); |
d14e6d76 | 882 | if (ops->vidioc_s_fmt_vid_out) { |
a399810c | 883 | ret = ops->vidioc_s_fmt_vid_out(file, fh, f); |
d14e6d76 PO |
884 | } else if (ops->vidioc_s_fmt_vid_out_mplane) { |
885 | if (fmt_sp_to_mp(f, &f_copy)) | |
886 | break; | |
887 | ret = ops->vidioc_s_fmt_vid_out_mplane(file, fh, | |
888 | &f_copy); | |
889 | if (ret) | |
890 | break; | |
891 | ||
892 | if (f_copy.fmt.pix_mp.num_planes > 1) { | |
893 | /* Drivers shouldn't adjust from 1-plane | |
894 | * to more than 1-plane formats */ | |
895 | ret = -EBUSY; | |
896 | WARN_ON(1); | |
897 | break; | |
898 | } | |
899 | ||
900 | ret = fmt_mp_to_sp(&f_copy, f); | |
901 | } | |
902 | break; | |
903 | case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE: | |
904 | CLEAR_AFTER_FIELD(f, fmt.pix_mp); | |
905 | v4l_print_pix_fmt_mplane(vfd, &f->fmt.pix_mp); | |
906 | if (ops->vidioc_s_fmt_vid_out_mplane) { | |
907 | ret = ops->vidioc_s_fmt_vid_out_mplane(file, | |
908 | fh, f); | |
909 | } else if (ops->vidioc_s_fmt_vid_out && | |
910 | f->fmt.pix_mp.num_planes == 1) { | |
911 | if (fmt_mp_to_sp(f, &f_copy)) | |
912 | break; | |
913 | ret = ops->vidioc_s_fmt_vid_out(file, | |
914 | fh, &f_copy); | |
915 | if (ret) | |
916 | break; | |
917 | ||
918 | ret = fmt_mp_to_sp(&f_copy, f); | |
919 | } | |
35ea11ff HV |
920 | break; |
921 | case V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY: | |
7ecc0cf9 | 922 | CLEAR_AFTER_FIELD(f, fmt.win); |
a399810c HV |
923 | if (ops->vidioc_s_fmt_vid_out_overlay) |
924 | ret = ops->vidioc_s_fmt_vid_out_overlay(file, | |
35ea11ff HV |
925 | fh, f); |
926 | break; | |
927 | case V4L2_BUF_TYPE_VBI_CAPTURE: | |
7ecc0cf9 | 928 | CLEAR_AFTER_FIELD(f, fmt.vbi); |
a399810c HV |
929 | if (ops->vidioc_s_fmt_vbi_cap) |
930 | ret = ops->vidioc_s_fmt_vbi_cap(file, fh, f); | |
35ea11ff HV |
931 | break; |
932 | case V4L2_BUF_TYPE_VBI_OUTPUT: | |
7ecc0cf9 | 933 | CLEAR_AFTER_FIELD(f, fmt.vbi); |
a399810c HV |
934 | if (ops->vidioc_s_fmt_vbi_out) |
935 | ret = ops->vidioc_s_fmt_vbi_out(file, fh, f); | |
35ea11ff HV |
936 | break; |
937 | case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE: | |
7ecc0cf9 | 938 | CLEAR_AFTER_FIELD(f, fmt.sliced); |
a399810c HV |
939 | if (ops->vidioc_s_fmt_sliced_vbi_cap) |
940 | ret = ops->vidioc_s_fmt_sliced_vbi_cap(file, | |
35ea11ff HV |
941 | fh, f); |
942 | break; | |
943 | case V4L2_BUF_TYPE_SLICED_VBI_OUTPUT: | |
7ecc0cf9 | 944 | CLEAR_AFTER_FIELD(f, fmt.sliced); |
a399810c HV |
945 | if (ops->vidioc_s_fmt_sliced_vbi_out) |
946 | ret = ops->vidioc_s_fmt_sliced_vbi_out(file, | |
35ea11ff HV |
947 | fh, f); |
948 | break; | |
949 | case V4L2_BUF_TYPE_PRIVATE: | |
7ecc0cf9 | 950 | /* CLEAR_AFTER_FIELD(f, fmt.raw_data); <- does nothing */ |
a399810c HV |
951 | if (ops->vidioc_s_fmt_type_private) |
952 | ret = ops->vidioc_s_fmt_type_private(file, | |
35ea11ff HV |
953 | fh, f); |
954 | break; | |
955 | } | |
956 | break; | |
957 | } | |
958 | case VIDIOC_TRY_FMT: | |
959 | { | |
960 | struct v4l2_format *f = (struct v4l2_format *)arg; | |
961 | ||
962 | /* FIXME: Should be one dump per type */ | |
963 | dbgarg(cmd, "type=%s\n", prt_names(f->type, | |
964 | v4l2_type_names)); | |
965 | switch (f->type) { | |
966 | case V4L2_BUF_TYPE_VIDEO_CAPTURE: | |
7ecc0cf9 | 967 | CLEAR_AFTER_FIELD(f, fmt.pix); |
d14e6d76 | 968 | if (ops->vidioc_try_fmt_vid_cap) { |
a399810c | 969 | ret = ops->vidioc_try_fmt_vid_cap(file, fh, f); |
d14e6d76 PO |
970 | } else if (ops->vidioc_try_fmt_vid_cap_mplane) { |
971 | if (fmt_sp_to_mp(f, &f_copy)) | |
972 | break; | |
973 | ret = ops->vidioc_try_fmt_vid_cap_mplane(file, | |
974 | fh, &f_copy); | |
975 | if (ret) | |
976 | break; | |
977 | ||
978 | if (f_copy.fmt.pix_mp.num_planes > 1) { | |
979 | /* Drivers shouldn't adjust from 1-plane | |
980 | * to more than 1-plane formats */ | |
981 | ret = -EBUSY; | |
982 | WARN_ON(1); | |
983 | break; | |
984 | } | |
985 | ret = fmt_mp_to_sp(&f_copy, f); | |
986 | } | |
35ea11ff HV |
987 | if (!ret) |
988 | v4l_print_pix_fmt(vfd, &f->fmt.pix); | |
989 | break; | |
d14e6d76 PO |
990 | case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE: |
991 | CLEAR_AFTER_FIELD(f, fmt.pix_mp); | |
992 | if (ops->vidioc_try_fmt_vid_cap_mplane) { | |
993 | ret = ops->vidioc_try_fmt_vid_cap_mplane(file, | |
994 | fh, f); | |
995 | } else if (ops->vidioc_try_fmt_vid_cap && | |
996 | f->fmt.pix_mp.num_planes == 1) { | |
997 | if (fmt_mp_to_sp(f, &f_copy)) | |
998 | break; | |
999 | ret = ops->vidioc_try_fmt_vid_cap(file, | |
1000 | fh, &f_copy); | |
1001 | if (ret) | |
1002 | break; | |
1003 | ||
1004 | ret = fmt_sp_to_mp(&f_copy, f); | |
1005 | } | |
1006 | if (!ret) | |
1007 | v4l_print_pix_fmt_mplane(vfd, &f->fmt.pix_mp); | |
1008 | break; | |
35ea11ff | 1009 | case V4L2_BUF_TYPE_VIDEO_OVERLAY: |
7ecc0cf9 | 1010 | CLEAR_AFTER_FIELD(f, fmt.win); |
a399810c HV |
1011 | if (ops->vidioc_try_fmt_vid_overlay) |
1012 | ret = ops->vidioc_try_fmt_vid_overlay(file, | |
35ea11ff HV |
1013 | fh, f); |
1014 | break; | |
1015 | case V4L2_BUF_TYPE_VIDEO_OUTPUT: | |
7ecc0cf9 | 1016 | CLEAR_AFTER_FIELD(f, fmt.pix); |
d14e6d76 | 1017 | if (ops->vidioc_try_fmt_vid_out) { |
a399810c | 1018 | ret = ops->vidioc_try_fmt_vid_out(file, fh, f); |
d14e6d76 PO |
1019 | } else if (ops->vidioc_try_fmt_vid_out_mplane) { |
1020 | if (fmt_sp_to_mp(f, &f_copy)) | |
1021 | break; | |
1022 | ret = ops->vidioc_try_fmt_vid_out_mplane(file, | |
1023 | fh, &f_copy); | |
1024 | if (ret) | |
1025 | break; | |
1026 | ||
1027 | if (f_copy.fmt.pix_mp.num_planes > 1) { | |
1028 | /* Drivers shouldn't adjust from 1-plane | |
1029 | * to more than 1-plane formats */ | |
1030 | ret = -EBUSY; | |
1031 | WARN_ON(1); | |
1032 | break; | |
1033 | } | |
1034 | ret = fmt_mp_to_sp(&f_copy, f); | |
1035 | } | |
35ea11ff HV |
1036 | if (!ret) |
1037 | v4l_print_pix_fmt(vfd, &f->fmt.pix); | |
1038 | break; | |
d14e6d76 PO |
1039 | case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE: |
1040 | CLEAR_AFTER_FIELD(f, fmt.pix_mp); | |
1041 | if (ops->vidioc_try_fmt_vid_out_mplane) { | |
1042 | ret = ops->vidioc_try_fmt_vid_out_mplane(file, | |
1043 | fh, f); | |
1044 | } else if (ops->vidioc_try_fmt_vid_out && | |
1045 | f->fmt.pix_mp.num_planes == 1) { | |
1046 | if (fmt_mp_to_sp(f, &f_copy)) | |
1047 | break; | |
1048 | ret = ops->vidioc_try_fmt_vid_out(file, | |
1049 | fh, &f_copy); | |
1050 | if (ret) | |
1051 | break; | |
1052 | ||
1053 | ret = fmt_sp_to_mp(&f_copy, f); | |
1054 | } | |
1055 | if (!ret) | |
1056 | v4l_print_pix_fmt_mplane(vfd, &f->fmt.pix_mp); | |
1057 | break; | |
35ea11ff | 1058 | case V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY: |
7ecc0cf9 | 1059 | CLEAR_AFTER_FIELD(f, fmt.win); |
a399810c HV |
1060 | if (ops->vidioc_try_fmt_vid_out_overlay) |
1061 | ret = ops->vidioc_try_fmt_vid_out_overlay(file, | |
35ea11ff HV |
1062 | fh, f); |
1063 | break; | |
1064 | case V4L2_BUF_TYPE_VBI_CAPTURE: | |
7ecc0cf9 | 1065 | CLEAR_AFTER_FIELD(f, fmt.vbi); |
a399810c HV |
1066 | if (ops->vidioc_try_fmt_vbi_cap) |
1067 | ret = ops->vidioc_try_fmt_vbi_cap(file, fh, f); | |
35ea11ff HV |
1068 | break; |
1069 | case V4L2_BUF_TYPE_VBI_OUTPUT: | |
7ecc0cf9 | 1070 | CLEAR_AFTER_FIELD(f, fmt.vbi); |
a399810c HV |
1071 | if (ops->vidioc_try_fmt_vbi_out) |
1072 | ret = ops->vidioc_try_fmt_vbi_out(file, fh, f); | |
35ea11ff HV |
1073 | break; |
1074 | case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE: | |
7ecc0cf9 | 1075 | CLEAR_AFTER_FIELD(f, fmt.sliced); |
a399810c HV |
1076 | if (ops->vidioc_try_fmt_sliced_vbi_cap) |
1077 | ret = ops->vidioc_try_fmt_sliced_vbi_cap(file, | |
35ea11ff HV |
1078 | fh, f); |
1079 | break; | |
1080 | case V4L2_BUF_TYPE_SLICED_VBI_OUTPUT: | |
7ecc0cf9 | 1081 | CLEAR_AFTER_FIELD(f, fmt.sliced); |
a399810c HV |
1082 | if (ops->vidioc_try_fmt_sliced_vbi_out) |
1083 | ret = ops->vidioc_try_fmt_sliced_vbi_out(file, | |
35ea11ff HV |
1084 | fh, f); |
1085 | break; | |
1086 | case V4L2_BUF_TYPE_PRIVATE: | |
7ecc0cf9 | 1087 | /* CLEAR_AFTER_FIELD(f, fmt.raw_data); <- does nothing */ |
a399810c HV |
1088 | if (ops->vidioc_try_fmt_type_private) |
1089 | ret = ops->vidioc_try_fmt_type_private(file, | |
35ea11ff HV |
1090 | fh, f); |
1091 | break; | |
1092 | } | |
1093 | ||
1094 | break; | |
1095 | } | |
1096 | /* FIXME: Those buf reqs could be handled here, | |
1097 | with some changes on videobuf to allow its header to be included at | |
1098 | videodev2.h or being merged at videodev2. | |
1099 | */ | |
1100 | case VIDIOC_REQBUFS: | |
1101 | { | |
1102 | struct v4l2_requestbuffers *p = arg; | |
1103 | ||
a399810c | 1104 | if (!ops->vidioc_reqbufs) |
35ea11ff | 1105 | break; |
a399810c | 1106 | ret = check_fmt(ops, p->type); |
35ea11ff HV |
1107 | if (ret) |
1108 | break; | |
1109 | ||
7ecc0cf9 TP |
1110 | if (p->type < V4L2_BUF_TYPE_PRIVATE) |
1111 | CLEAR_AFTER_FIELD(p, memory); | |
1112 | ||
a399810c | 1113 | ret = ops->vidioc_reqbufs(file, fh, p); |
35ea11ff HV |
1114 | dbgarg(cmd, "count=%d, type=%s, memory=%s\n", |
1115 | p->count, | |
1116 | prt_names(p->type, v4l2_type_names), | |
1117 | prt_names(p->memory, v4l2_memory_names)); | |
1118 | break; | |
1119 | } | |
1120 | case VIDIOC_QUERYBUF: | |
1121 | { | |
1122 | struct v4l2_buffer *p = arg; | |
1123 | ||
a399810c | 1124 | if (!ops->vidioc_querybuf) |
35ea11ff | 1125 | break; |
a399810c | 1126 | ret = check_fmt(ops, p->type); |
35ea11ff HV |
1127 | if (ret) |
1128 | break; | |
1129 | ||
a399810c | 1130 | ret = ops->vidioc_querybuf(file, fh, p); |
35ea11ff HV |
1131 | if (!ret) |
1132 | dbgbuf(cmd, vfd, p); | |
1133 | break; | |
1134 | } | |
1135 | case VIDIOC_QBUF: | |
1136 | { | |
1137 | struct v4l2_buffer *p = arg; | |
1138 | ||
a399810c | 1139 | if (!ops->vidioc_qbuf) |
35ea11ff | 1140 | break; |
a399810c | 1141 | ret = check_fmt(ops, p->type); |
35ea11ff HV |
1142 | if (ret) |
1143 | break; | |
1144 | ||
a399810c | 1145 | ret = ops->vidioc_qbuf(file, fh, p); |
35ea11ff HV |
1146 | if (!ret) |
1147 | dbgbuf(cmd, vfd, p); | |
1148 | break; | |
1149 | } | |
1150 | case VIDIOC_DQBUF: | |
1151 | { | |
1152 | struct v4l2_buffer *p = arg; | |
1153 | ||
a399810c | 1154 | if (!ops->vidioc_dqbuf) |
35ea11ff | 1155 | break; |
a399810c | 1156 | ret = check_fmt(ops, p->type); |
35ea11ff HV |
1157 | if (ret) |
1158 | break; | |
1159 | ||
a399810c | 1160 | ret = ops->vidioc_dqbuf(file, fh, p); |
35ea11ff HV |
1161 | if (!ret) |
1162 | dbgbuf(cmd, vfd, p); | |
1163 | break; | |
1164 | } | |
1165 | case VIDIOC_OVERLAY: | |
1166 | { | |
1167 | int *i = arg; | |
1168 | ||
a399810c | 1169 | if (!ops->vidioc_overlay) |
35ea11ff HV |
1170 | break; |
1171 | dbgarg(cmd, "value=%d\n", *i); | |
a399810c | 1172 | ret = ops->vidioc_overlay(file, fh, *i); |
35ea11ff HV |
1173 | break; |
1174 | } | |
1175 | case VIDIOC_G_FBUF: | |
1176 | { | |
1177 | struct v4l2_framebuffer *p = arg; | |
1178 | ||
a399810c | 1179 | if (!ops->vidioc_g_fbuf) |
35ea11ff | 1180 | break; |
a399810c | 1181 | ret = ops->vidioc_g_fbuf(file, fh, arg); |
35ea11ff HV |
1182 | if (!ret) { |
1183 | dbgarg(cmd, "capability=0x%x, flags=%d, base=0x%08lx\n", | |
1184 | p->capability, p->flags, | |
1185 | (unsigned long)p->base); | |
1186 | v4l_print_pix_fmt(vfd, &p->fmt); | |
1187 | } | |
1188 | break; | |
1189 | } | |
1190 | case VIDIOC_S_FBUF: | |
1191 | { | |
1192 | struct v4l2_framebuffer *p = arg; | |
1193 | ||
a399810c | 1194 | if (!ops->vidioc_s_fbuf) |
35ea11ff HV |
1195 | break; |
1196 | dbgarg(cmd, "capability=0x%x, flags=%d, base=0x%08lx\n", | |
1197 | p->capability, p->flags, (unsigned long)p->base); | |
1198 | v4l_print_pix_fmt(vfd, &p->fmt); | |
a399810c | 1199 | ret = ops->vidioc_s_fbuf(file, fh, arg); |
35ea11ff HV |
1200 | break; |
1201 | } | |
1202 | case VIDIOC_STREAMON: | |
1203 | { | |
1204 | enum v4l2_buf_type i = *(int *)arg; | |
1205 | ||
a399810c | 1206 | if (!ops->vidioc_streamon) |
35ea11ff HV |
1207 | break; |
1208 | dbgarg(cmd, "type=%s\n", prt_names(i, v4l2_type_names)); | |
a399810c | 1209 | ret = ops->vidioc_streamon(file, fh, i); |
35ea11ff HV |
1210 | break; |
1211 | } | |
1212 | case VIDIOC_STREAMOFF: | |
1213 | { | |
1214 | enum v4l2_buf_type i = *(int *)arg; | |
1215 | ||
a399810c | 1216 | if (!ops->vidioc_streamoff) |
35ea11ff HV |
1217 | break; |
1218 | dbgarg(cmd, "type=%s\n", prt_names(i, v4l2_type_names)); | |
a399810c | 1219 | ret = ops->vidioc_streamoff(file, fh, i); |
35ea11ff HV |
1220 | break; |
1221 | } | |
1222 | /* ---------- tv norms ---------- */ | |
1223 | case VIDIOC_ENUMSTD: | |
1224 | { | |
1225 | struct v4l2_standard *p = arg; | |
1226 | v4l2_std_id id = vfd->tvnorms, curr_id = 0; | |
1227 | unsigned int index = p->index, i, j = 0; | |
1228 | const char *descr = ""; | |
1229 | ||
1230 | /* Return norm array in a canonical way */ | |
1231 | for (i = 0; i <= index && id; i++) { | |
1232 | /* last std value in the standards array is 0, so this | |
1233 | while always ends there since (id & 0) == 0. */ | |
1234 | while ((id & standards[j].std) != standards[j].std) | |
1235 | j++; | |
1236 | curr_id = standards[j].std; | |
1237 | descr = standards[j].descr; | |
1238 | j++; | |
1239 | if (curr_id == 0) | |
1240 | break; | |
1241 | if (curr_id != V4L2_STD_PAL && | |
1242 | curr_id != V4L2_STD_SECAM && | |
1243 | curr_id != V4L2_STD_NTSC) | |
1244 | id &= ~curr_id; | |
1245 | } | |
1246 | if (i <= index) | |
3f5e1824 | 1247 | break; |
35ea11ff HV |
1248 | |
1249 | v4l2_video_std_construct(p, curr_id, descr); | |
35ea11ff HV |
1250 | |
1251 | dbgarg(cmd, "index=%d, id=0x%Lx, name=%s, fps=%d/%d, " | |
1252 | "framelines=%d\n", p->index, | |
1253 | (unsigned long long)p->id, p->name, | |
1254 | p->frameperiod.numerator, | |
1255 | p->frameperiod.denominator, | |
1256 | p->framelines); | |
1257 | ||
1258 | ret = 0; | |
1259 | break; | |
1260 | } | |
1261 | case VIDIOC_G_STD: | |
1262 | { | |
1263 | v4l2_std_id *id = arg; | |
1264 | ||
1265 | ret = 0; | |
1266 | /* Calls the specific handler */ | |
a399810c HV |
1267 | if (ops->vidioc_g_std) |
1268 | ret = ops->vidioc_g_std(file, fh, id); | |
9bedc7f7 | 1269 | else if (vfd->current_norm) |
35ea11ff | 1270 | *id = vfd->current_norm; |
9bedc7f7 HV |
1271 | else |
1272 | ret = -EINVAL; | |
35ea11ff HV |
1273 | |
1274 | if (!ret) | |
1275 | dbgarg(cmd, "std=0x%08Lx\n", (long long unsigned)*id); | |
1276 | break; | |
1277 | } | |
1278 | case VIDIOC_S_STD: | |
1279 | { | |
1280 | v4l2_std_id *id = arg, norm; | |
1281 | ||
1282 | dbgarg(cmd, "std=%08Lx\n", (long long unsigned)*id); | |
1283 | ||
1284 | norm = (*id) & vfd->tvnorms; | |
1285 | if (vfd->tvnorms && !norm) /* Check if std is supported */ | |
1286 | break; | |
1287 | ||
1288 | /* Calls the specific handler */ | |
a399810c HV |
1289 | if (ops->vidioc_s_std) |
1290 | ret = ops->vidioc_s_std(file, fh, &norm); | |
35ea11ff HV |
1291 | else |
1292 | ret = -EINVAL; | |
1293 | ||
1294 | /* Updates standard information */ | |
1295 | if (ret >= 0) | |
1296 | vfd->current_norm = norm; | |
1297 | break; | |
1298 | } | |
1299 | case VIDIOC_QUERYSTD: | |
1300 | { | |
1301 | v4l2_std_id *p = arg; | |
1302 | ||
a399810c | 1303 | if (!ops->vidioc_querystd) |
35ea11ff | 1304 | break; |
a399810c | 1305 | ret = ops->vidioc_querystd(file, fh, arg); |
35ea11ff HV |
1306 | if (!ret) |
1307 | dbgarg(cmd, "detected std=%08Lx\n", | |
1308 | (unsigned long long)*p); | |
1309 | break; | |
1310 | } | |
1311 | /* ------ input switching ---------- */ | |
1312 | /* FIXME: Inputs can be handled inside videodev2 */ | |
1313 | case VIDIOC_ENUMINPUT: | |
1314 | { | |
1315 | struct v4l2_input *p = arg; | |
35ea11ff | 1316 | |
b6456c0c MK |
1317 | /* |
1318 | * We set the flags for CAP_PRESETS, CAP_CUSTOM_TIMINGS & | |
1319 | * CAP_STD here based on ioctl handler provided by the | |
1320 | * driver. If the driver doesn't support these | |
1321 | * for a specific input, it must override these flags. | |
1322 | */ | |
1323 | if (ops->vidioc_s_std) | |
1324 | p->capabilities |= V4L2_IN_CAP_STD; | |
1325 | if (ops->vidioc_s_dv_preset) | |
1326 | p->capabilities |= V4L2_IN_CAP_PRESETS; | |
1327 | if (ops->vidioc_s_dv_timings) | |
1328 | p->capabilities |= V4L2_IN_CAP_CUSTOM_TIMINGS; | |
1329 | ||
a399810c | 1330 | if (!ops->vidioc_enum_input) |
35ea11ff | 1331 | break; |
35ea11ff | 1332 | |
a399810c | 1333 | ret = ops->vidioc_enum_input(file, fh, p); |
35ea11ff HV |
1334 | if (!ret) |
1335 | dbgarg(cmd, "index=%d, name=%s, type=%d, " | |
1336 | "audioset=%d, " | |
1337 | "tuner=%d, std=%08Lx, status=%d\n", | |
1338 | p->index, p->name, p->type, p->audioset, | |
1339 | p->tuner, | |
1340 | (unsigned long long)p->std, | |
1341 | p->status); | |
1342 | break; | |
1343 | } | |
1344 | case VIDIOC_G_INPUT: | |
1345 | { | |
1346 | unsigned int *i = arg; | |
1347 | ||
a399810c | 1348 | if (!ops->vidioc_g_input) |
35ea11ff | 1349 | break; |
a399810c | 1350 | ret = ops->vidioc_g_input(file, fh, i); |
35ea11ff HV |
1351 | if (!ret) |
1352 | dbgarg(cmd, "value=%d\n", *i); | |
1353 | break; | |
1354 | } | |
1355 | case VIDIOC_S_INPUT: | |
1356 | { | |
1357 | unsigned int *i = arg; | |
1358 | ||
a399810c | 1359 | if (!ops->vidioc_s_input) |
35ea11ff HV |
1360 | break; |
1361 | dbgarg(cmd, "value=%d\n", *i); | |
a399810c | 1362 | ret = ops->vidioc_s_input(file, fh, *i); |
35ea11ff HV |
1363 | break; |
1364 | } | |
1365 | ||
1366 | /* ------ output switching ---------- */ | |
1367 | case VIDIOC_ENUMOUTPUT: | |
1368 | { | |
1369 | struct v4l2_output *p = arg; | |
35ea11ff | 1370 | |
a399810c | 1371 | if (!ops->vidioc_enum_output) |
35ea11ff | 1372 | break; |
35ea11ff | 1373 | |
b6456c0c MK |
1374 | /* |
1375 | * We set the flags for CAP_PRESETS, CAP_CUSTOM_TIMINGS & | |
1376 | * CAP_STD here based on ioctl handler provided by the | |
1377 | * driver. If the driver doesn't support these | |
1378 | * for a specific output, it must override these flags. | |
1379 | */ | |
1380 | if (ops->vidioc_s_std) | |
1381 | p->capabilities |= V4L2_OUT_CAP_STD; | |
1382 | if (ops->vidioc_s_dv_preset) | |
1383 | p->capabilities |= V4L2_OUT_CAP_PRESETS; | |
1384 | if (ops->vidioc_s_dv_timings) | |
1385 | p->capabilities |= V4L2_OUT_CAP_CUSTOM_TIMINGS; | |
1386 | ||
a399810c | 1387 | ret = ops->vidioc_enum_output(file, fh, p); |
35ea11ff HV |
1388 | if (!ret) |
1389 | dbgarg(cmd, "index=%d, name=%s, type=%d, " | |
1390 | "audioset=0x%x, " | |
1391 | "modulator=%d, std=0x%08Lx\n", | |
1392 | p->index, p->name, p->type, p->audioset, | |
1393 | p->modulator, (unsigned long long)p->std); | |
1394 | break; | |
1395 | } | |
1396 | case VIDIOC_G_OUTPUT: | |
1397 | { | |
1398 | unsigned int *i = arg; | |
1399 | ||
a399810c | 1400 | if (!ops->vidioc_g_output) |
35ea11ff | 1401 | break; |
a399810c | 1402 | ret = ops->vidioc_g_output(file, fh, i); |
35ea11ff HV |
1403 | if (!ret) |
1404 | dbgarg(cmd, "value=%d\n", *i); | |
1405 | break; | |
1406 | } | |
1407 | case VIDIOC_S_OUTPUT: | |
1408 | { | |
1409 | unsigned int *i = arg; | |
1410 | ||
a399810c | 1411 | if (!ops->vidioc_s_output) |
35ea11ff HV |
1412 | break; |
1413 | dbgarg(cmd, "value=%d\n", *i); | |
a399810c | 1414 | ret = ops->vidioc_s_output(file, fh, *i); |
35ea11ff HV |
1415 | break; |
1416 | } | |
1417 | ||
1418 | /* --- controls ---------------------------------------------- */ | |
1419 | case VIDIOC_QUERYCTRL: | |
1420 | { | |
1421 | struct v4l2_queryctrl *p = arg; | |
1422 | ||
2d28b686 HV |
1423 | if (vfh && vfh->ctrl_handler) |
1424 | ret = v4l2_queryctrl(vfh->ctrl_handler, p); | |
1425 | else if (vfd->ctrl_handler) | |
11bbc1ca HV |
1426 | ret = v4l2_queryctrl(vfd->ctrl_handler, p); |
1427 | else if (ops->vidioc_queryctrl) | |
1428 | ret = ops->vidioc_queryctrl(file, fh, p); | |
1429 | else | |
35ea11ff | 1430 | break; |
35ea11ff HV |
1431 | if (!ret) |
1432 | dbgarg(cmd, "id=0x%x, type=%d, name=%s, min/max=%d/%d, " | |
1433 | "step=%d, default=%d, flags=0x%08x\n", | |
1434 | p->id, p->type, p->name, | |
1435 | p->minimum, p->maximum, | |
1436 | p->step, p->default_value, p->flags); | |
1437 | else | |
1438 | dbgarg(cmd, "id=0x%x\n", p->id); | |
1439 | break; | |
1440 | } | |
1441 | case VIDIOC_G_CTRL: | |
1442 | { | |
1443 | struct v4l2_control *p = arg; | |
1444 | ||
2d28b686 HV |
1445 | if (vfh && vfh->ctrl_handler) |
1446 | ret = v4l2_g_ctrl(vfh->ctrl_handler, p); | |
1447 | else if (vfd->ctrl_handler) | |
11bbc1ca HV |
1448 | ret = v4l2_g_ctrl(vfd->ctrl_handler, p); |
1449 | else if (ops->vidioc_g_ctrl) | |
a399810c HV |
1450 | ret = ops->vidioc_g_ctrl(file, fh, p); |
1451 | else if (ops->vidioc_g_ext_ctrls) { | |
35ea11ff HV |
1452 | struct v4l2_ext_controls ctrls; |
1453 | struct v4l2_ext_control ctrl; | |
1454 | ||
1455 | ctrls.ctrl_class = V4L2_CTRL_ID2CLASS(p->id); | |
1456 | ctrls.count = 1; | |
1457 | ctrls.controls = &ctrl; | |
1458 | ctrl.id = p->id; | |
1459 | ctrl.value = p->value; | |
1460 | if (check_ext_ctrls(&ctrls, 1)) { | |
a399810c | 1461 | ret = ops->vidioc_g_ext_ctrls(file, fh, &ctrls); |
35ea11ff HV |
1462 | if (ret == 0) |
1463 | p->value = ctrl.value; | |
1464 | } | |
1465 | } else | |
1466 | break; | |
1467 | if (!ret) | |
1468 | dbgarg(cmd, "id=0x%x, value=%d\n", p->id, p->value); | |
1469 | else | |
1470 | dbgarg(cmd, "id=0x%x\n", p->id); | |
1471 | break; | |
1472 | } | |
1473 | case VIDIOC_S_CTRL: | |
1474 | { | |
1475 | struct v4l2_control *p = arg; | |
1476 | struct v4l2_ext_controls ctrls; | |
1477 | struct v4l2_ext_control ctrl; | |
1478 | ||
2d28b686 | 1479 | if (!(vfh && vfh->ctrl_handler) && !vfd->ctrl_handler && |
11bbc1ca | 1480 | !ops->vidioc_s_ctrl && !ops->vidioc_s_ext_ctrls) |
35ea11ff HV |
1481 | break; |
1482 | ||
1483 | dbgarg(cmd, "id=0x%x, value=%d\n", p->id, p->value); | |
1484 | ||
2d28b686 | 1485 | if (vfh && vfh->ctrl_handler) { |
ab892bac | 1486 | ret = v4l2_s_ctrl(vfh, vfh->ctrl_handler, p); |
2d28b686 HV |
1487 | break; |
1488 | } | |
11bbc1ca | 1489 | if (vfd->ctrl_handler) { |
ab892bac | 1490 | ret = v4l2_s_ctrl(NULL, vfd->ctrl_handler, p); |
11bbc1ca HV |
1491 | break; |
1492 | } | |
a399810c HV |
1493 | if (ops->vidioc_s_ctrl) { |
1494 | ret = ops->vidioc_s_ctrl(file, fh, p); | |
35ea11ff HV |
1495 | break; |
1496 | } | |
a399810c | 1497 | if (!ops->vidioc_s_ext_ctrls) |
35ea11ff HV |
1498 | break; |
1499 | ||
1500 | ctrls.ctrl_class = V4L2_CTRL_ID2CLASS(p->id); | |
1501 | ctrls.count = 1; | |
1502 | ctrls.controls = &ctrl; | |
1503 | ctrl.id = p->id; | |
1504 | ctrl.value = p->value; | |
1505 | if (check_ext_ctrls(&ctrls, 1)) | |
a399810c | 1506 | ret = ops->vidioc_s_ext_ctrls(file, fh, &ctrls); |
35ea11ff HV |
1507 | break; |
1508 | } | |
1509 | case VIDIOC_G_EXT_CTRLS: | |
1510 | { | |
1511 | struct v4l2_ext_controls *p = arg; | |
1512 | ||
1513 | p->error_idx = p->count; | |
2d28b686 HV |
1514 | if (vfh && vfh->ctrl_handler) |
1515 | ret = v4l2_g_ext_ctrls(vfh->ctrl_handler, p); | |
1516 | else if (vfd->ctrl_handler) | |
11bbc1ca HV |
1517 | ret = v4l2_g_ext_ctrls(vfd->ctrl_handler, p); |
1518 | else if (ops->vidioc_g_ext_ctrls && check_ext_ctrls(p, 0)) | |
a399810c | 1519 | ret = ops->vidioc_g_ext_ctrls(file, fh, p); |
11bbc1ca HV |
1520 | else |
1521 | break; | |
35ea11ff HV |
1522 | v4l_print_ext_ctrls(cmd, vfd, p, !ret); |
1523 | break; | |
1524 | } | |
1525 | case VIDIOC_S_EXT_CTRLS: | |
1526 | { | |
1527 | struct v4l2_ext_controls *p = arg; | |
1528 | ||
1529 | p->error_idx = p->count; | |
2d28b686 HV |
1530 | if (!(vfh && vfh->ctrl_handler) && !vfd->ctrl_handler && |
1531 | !ops->vidioc_s_ext_ctrls) | |
35ea11ff HV |
1532 | break; |
1533 | v4l_print_ext_ctrls(cmd, vfd, p, 1); | |
2d28b686 | 1534 | if (vfh && vfh->ctrl_handler) |
ab892bac | 1535 | ret = v4l2_s_ext_ctrls(vfh, vfh->ctrl_handler, p); |
2d28b686 | 1536 | else if (vfd->ctrl_handler) |
ab892bac | 1537 | ret = v4l2_s_ext_ctrls(NULL, vfd->ctrl_handler, p); |
11bbc1ca | 1538 | else if (check_ext_ctrls(p, 0)) |
a399810c | 1539 | ret = ops->vidioc_s_ext_ctrls(file, fh, p); |
35ea11ff HV |
1540 | break; |
1541 | } | |
1542 | case VIDIOC_TRY_EXT_CTRLS: | |
1543 | { | |
1544 | struct v4l2_ext_controls *p = arg; | |
1545 | ||
1546 | p->error_idx = p->count; | |
2d28b686 HV |
1547 | if (!(vfh && vfh->ctrl_handler) && !vfd->ctrl_handler && |
1548 | !ops->vidioc_try_ext_ctrls) | |
35ea11ff HV |
1549 | break; |
1550 | v4l_print_ext_ctrls(cmd, vfd, p, 1); | |
2d28b686 HV |
1551 | if (vfh && vfh->ctrl_handler) |
1552 | ret = v4l2_try_ext_ctrls(vfh->ctrl_handler, p); | |
1553 | else if (vfd->ctrl_handler) | |
11bbc1ca HV |
1554 | ret = v4l2_try_ext_ctrls(vfd->ctrl_handler, p); |
1555 | else if (check_ext_ctrls(p, 0)) | |
a399810c | 1556 | ret = ops->vidioc_try_ext_ctrls(file, fh, p); |
35ea11ff HV |
1557 | break; |
1558 | } | |
1559 | case VIDIOC_QUERYMENU: | |
1560 | { | |
1561 | struct v4l2_querymenu *p = arg; | |
1562 | ||
2d28b686 HV |
1563 | if (vfh && vfh->ctrl_handler) |
1564 | ret = v4l2_querymenu(vfh->ctrl_handler, p); | |
1565 | else if (vfd->ctrl_handler) | |
11bbc1ca HV |
1566 | ret = v4l2_querymenu(vfd->ctrl_handler, p); |
1567 | else if (ops->vidioc_querymenu) | |
1568 | ret = ops->vidioc_querymenu(file, fh, p); | |
1569 | else | |
35ea11ff | 1570 | break; |
35ea11ff HV |
1571 | if (!ret) |
1572 | dbgarg(cmd, "id=0x%x, index=%d, name=%s\n", | |
1573 | p->id, p->index, p->name); | |
1574 | else | |
1575 | dbgarg(cmd, "id=0x%x, index=%d\n", | |
1576 | p->id, p->index); | |
1577 | break; | |
1578 | } | |
1579 | /* --- audio ---------------------------------------------- */ | |
1580 | case VIDIOC_ENUMAUDIO: | |
1581 | { | |
1582 | struct v4l2_audio *p = arg; | |
1583 | ||
a399810c | 1584 | if (!ops->vidioc_enumaudio) |
35ea11ff | 1585 | break; |
a399810c | 1586 | ret = ops->vidioc_enumaudio(file, fh, p); |
35ea11ff HV |
1587 | if (!ret) |
1588 | dbgarg(cmd, "index=%d, name=%s, capability=0x%x, " | |
1589 | "mode=0x%x\n", p->index, p->name, | |
1590 | p->capability, p->mode); | |
1591 | else | |
1592 | dbgarg(cmd, "index=%d\n", p->index); | |
1593 | break; | |
1594 | } | |
1595 | case VIDIOC_G_AUDIO: | |
1596 | { | |
1597 | struct v4l2_audio *p = arg; | |
35ea11ff | 1598 | |
a399810c | 1599 | if (!ops->vidioc_g_audio) |
35ea11ff HV |
1600 | break; |
1601 | ||
a399810c | 1602 | ret = ops->vidioc_g_audio(file, fh, p); |
35ea11ff HV |
1603 | if (!ret) |
1604 | dbgarg(cmd, "index=%d, name=%s, capability=0x%x, " | |
1605 | "mode=0x%x\n", p->index, | |
1606 | p->name, p->capability, p->mode); | |
1607 | else | |
1608 | dbgarg(cmd, "index=%d\n", p->index); | |
1609 | break; | |
1610 | } | |
1611 | case VIDIOC_S_AUDIO: | |
1612 | { | |
1613 | struct v4l2_audio *p = arg; | |
1614 | ||
a399810c | 1615 | if (!ops->vidioc_s_audio) |
35ea11ff HV |
1616 | break; |
1617 | dbgarg(cmd, "index=%d, name=%s, capability=0x%x, " | |
1618 | "mode=0x%x\n", p->index, p->name, | |
1619 | p->capability, p->mode); | |
a399810c | 1620 | ret = ops->vidioc_s_audio(file, fh, p); |
35ea11ff HV |
1621 | break; |
1622 | } | |
1623 | case VIDIOC_ENUMAUDOUT: | |
1624 | { | |
1625 | struct v4l2_audioout *p = arg; | |
1626 | ||
a399810c | 1627 | if (!ops->vidioc_enumaudout) |
35ea11ff HV |
1628 | break; |
1629 | dbgarg(cmd, "Enum for index=%d\n", p->index); | |
a399810c | 1630 | ret = ops->vidioc_enumaudout(file, fh, p); |
35ea11ff HV |
1631 | if (!ret) |
1632 | dbgarg2("index=%d, name=%s, capability=%d, " | |
1633 | "mode=%d\n", p->index, p->name, | |
1634 | p->capability, p->mode); | |
1635 | break; | |
1636 | } | |
1637 | case VIDIOC_G_AUDOUT: | |
1638 | { | |
1639 | struct v4l2_audioout *p = arg; | |
1640 | ||
a399810c | 1641 | if (!ops->vidioc_g_audout) |
35ea11ff | 1642 | break; |
337f9d20 | 1643 | |
a399810c | 1644 | ret = ops->vidioc_g_audout(file, fh, p); |
35ea11ff HV |
1645 | if (!ret) |
1646 | dbgarg2("index=%d, name=%s, capability=%d, " | |
1647 | "mode=%d\n", p->index, p->name, | |
1648 | p->capability, p->mode); | |
1649 | break; | |
1650 | } | |
1651 | case VIDIOC_S_AUDOUT: | |
1652 | { | |
1653 | struct v4l2_audioout *p = arg; | |
1654 | ||
a399810c | 1655 | if (!ops->vidioc_s_audout) |
35ea11ff HV |
1656 | break; |
1657 | dbgarg(cmd, "index=%d, name=%s, capability=%d, " | |
1658 | "mode=%d\n", p->index, p->name, | |
1659 | p->capability, p->mode); | |
1660 | ||
a399810c | 1661 | ret = ops->vidioc_s_audout(file, fh, p); |
35ea11ff HV |
1662 | break; |
1663 | } | |
1664 | case VIDIOC_G_MODULATOR: | |
1665 | { | |
1666 | struct v4l2_modulator *p = arg; | |
1667 | ||
a399810c | 1668 | if (!ops->vidioc_g_modulator) |
35ea11ff | 1669 | break; |
a399810c | 1670 | ret = ops->vidioc_g_modulator(file, fh, p); |
35ea11ff HV |
1671 | if (!ret) |
1672 | dbgarg(cmd, "index=%d, name=%s, " | |
1673 | "capability=%d, rangelow=%d," | |
1674 | " rangehigh=%d, txsubchans=%d\n", | |
1675 | p->index, p->name, p->capability, | |
1676 | p->rangelow, p->rangehigh, | |
1677 | p->txsubchans); | |
1678 | break; | |
1679 | } | |
1680 | case VIDIOC_S_MODULATOR: | |
1681 | { | |
1682 | struct v4l2_modulator *p = arg; | |
1683 | ||
a399810c | 1684 | if (!ops->vidioc_s_modulator) |
35ea11ff HV |
1685 | break; |
1686 | dbgarg(cmd, "index=%d, name=%s, capability=%d, " | |
1687 | "rangelow=%d, rangehigh=%d, txsubchans=%d\n", | |
1688 | p->index, p->name, p->capability, p->rangelow, | |
1689 | p->rangehigh, p->txsubchans); | |
a399810c | 1690 | ret = ops->vidioc_s_modulator(file, fh, p); |
35ea11ff HV |
1691 | break; |
1692 | } | |
1693 | case VIDIOC_G_CROP: | |
1694 | { | |
1695 | struct v4l2_crop *p = arg; | |
1696 | ||
a399810c | 1697 | if (!ops->vidioc_g_crop) |
35ea11ff | 1698 | break; |
a56a18c3 | 1699 | |
35ea11ff | 1700 | dbgarg(cmd, "type=%s\n", prt_names(p->type, v4l2_type_names)); |
a399810c | 1701 | ret = ops->vidioc_g_crop(file, fh, p); |
35ea11ff HV |
1702 | if (!ret) |
1703 | dbgrect(vfd, "", &p->c); | |
1704 | break; | |
1705 | } | |
1706 | case VIDIOC_S_CROP: | |
1707 | { | |
1708 | struct v4l2_crop *p = arg; | |
1709 | ||
a399810c | 1710 | if (!ops->vidioc_s_crop) |
35ea11ff HV |
1711 | break; |
1712 | dbgarg(cmd, "type=%s\n", prt_names(p->type, v4l2_type_names)); | |
1713 | dbgrect(vfd, "", &p->c); | |
a399810c | 1714 | ret = ops->vidioc_s_crop(file, fh, p); |
35ea11ff HV |
1715 | break; |
1716 | } | |
1717 | case VIDIOC_CROPCAP: | |
1718 | { | |
1719 | struct v4l2_cropcap *p = arg; | |
1720 | ||
1721 | /*FIXME: Should also show v4l2_fract pixelaspect */ | |
a399810c | 1722 | if (!ops->vidioc_cropcap) |
35ea11ff | 1723 | break; |
a56a18c3 | 1724 | |
35ea11ff | 1725 | dbgarg(cmd, "type=%s\n", prt_names(p->type, v4l2_type_names)); |
a399810c | 1726 | ret = ops->vidioc_cropcap(file, fh, p); |
35ea11ff HV |
1727 | if (!ret) { |
1728 | dbgrect(vfd, "bounds ", &p->bounds); | |
1729 | dbgrect(vfd, "defrect ", &p->defrect); | |
1730 | } | |
1731 | break; | |
1732 | } | |
1733 | case VIDIOC_G_JPEGCOMP: | |
1734 | { | |
1735 | struct v4l2_jpegcompression *p = arg; | |
1736 | ||
a399810c | 1737 | if (!ops->vidioc_g_jpegcomp) |
35ea11ff | 1738 | break; |
a56a18c3 | 1739 | |
a399810c | 1740 | ret = ops->vidioc_g_jpegcomp(file, fh, p); |
35ea11ff HV |
1741 | if (!ret) |
1742 | dbgarg(cmd, "quality=%d, APPn=%d, " | |
1743 | "APP_len=%d, COM_len=%d, " | |
1744 | "jpeg_markers=%d\n", | |
1745 | p->quality, p->APPn, p->APP_len, | |
1746 | p->COM_len, p->jpeg_markers); | |
1747 | break; | |
1748 | } | |
1749 | case VIDIOC_S_JPEGCOMP: | |
1750 | { | |
1751 | struct v4l2_jpegcompression *p = arg; | |
1752 | ||
a399810c | 1753 | if (!ops->vidioc_g_jpegcomp) |
35ea11ff HV |
1754 | break; |
1755 | dbgarg(cmd, "quality=%d, APPn=%d, APP_len=%d, " | |
1756 | "COM_len=%d, jpeg_markers=%d\n", | |
1757 | p->quality, p->APPn, p->APP_len, | |
1758 | p->COM_len, p->jpeg_markers); | |
a399810c | 1759 | ret = ops->vidioc_s_jpegcomp(file, fh, p); |
35ea11ff HV |
1760 | break; |
1761 | } | |
1762 | case VIDIOC_G_ENC_INDEX: | |
1763 | { | |
1764 | struct v4l2_enc_idx *p = arg; | |
1765 | ||
a399810c | 1766 | if (!ops->vidioc_g_enc_index) |
35ea11ff | 1767 | break; |
a399810c | 1768 | ret = ops->vidioc_g_enc_index(file, fh, p); |
35ea11ff HV |
1769 | if (!ret) |
1770 | dbgarg(cmd, "entries=%d, entries_cap=%d\n", | |
1771 | p->entries, p->entries_cap); | |
1772 | break; | |
1773 | } | |
1774 | case VIDIOC_ENCODER_CMD: | |
1775 | { | |
1776 | struct v4l2_encoder_cmd *p = arg; | |
1777 | ||
a399810c | 1778 | if (!ops->vidioc_encoder_cmd) |
35ea11ff | 1779 | break; |
a399810c | 1780 | ret = ops->vidioc_encoder_cmd(file, fh, p); |
35ea11ff HV |
1781 | if (!ret) |
1782 | dbgarg(cmd, "cmd=%d, flags=%x\n", p->cmd, p->flags); | |
1783 | break; | |
1784 | } | |
1785 | case VIDIOC_TRY_ENCODER_CMD: | |
1786 | { | |
1787 | struct v4l2_encoder_cmd *p = arg; | |
1788 | ||
a399810c | 1789 | if (!ops->vidioc_try_encoder_cmd) |
35ea11ff | 1790 | break; |
a399810c | 1791 | ret = ops->vidioc_try_encoder_cmd(file, fh, p); |
35ea11ff HV |
1792 | if (!ret) |
1793 | dbgarg(cmd, "cmd=%d, flags=%x\n", p->cmd, p->flags); | |
1794 | break; | |
1795 | } | |
1796 | case VIDIOC_G_PARM: | |
1797 | { | |
1798 | struct v4l2_streamparm *p = arg; | |
35ea11ff | 1799 | |
a399810c | 1800 | if (ops->vidioc_g_parm) { |
34796bc0 TP |
1801 | ret = check_fmt(ops, p->type); |
1802 | if (ret) | |
1803 | break; | |
a399810c | 1804 | ret = ops->vidioc_g_parm(file, fh, p); |
35ea11ff | 1805 | } else { |
9bedc7f7 HV |
1806 | v4l2_std_id std = vfd->current_norm; |
1807 | ||
35ea11ff | 1808 | if (p->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) |
3f5e1824 | 1809 | break; |
35ea11ff | 1810 | |
35ea11ff | 1811 | ret = 0; |
9bedc7f7 HV |
1812 | if (ops->vidioc_g_std) |
1813 | ret = ops->vidioc_g_std(file, fh, &std); | |
1814 | else if (std == 0) | |
1815 | ret = -EINVAL; | |
1816 | if (ret == 0) | |
1817 | v4l2_video_std_frame_period(std, | |
1818 | &p->parm.capture.timeperframe); | |
35ea11ff HV |
1819 | } |
1820 | ||
1821 | dbgarg(cmd, "type=%d\n", p->type); | |
1822 | break; | |
1823 | } | |
1824 | case VIDIOC_S_PARM: | |
1825 | { | |
1826 | struct v4l2_streamparm *p = arg; | |
1827 | ||
a399810c | 1828 | if (!ops->vidioc_s_parm) |
35ea11ff | 1829 | break; |
34796bc0 TP |
1830 | ret = check_fmt(ops, p->type); |
1831 | if (ret) | |
1832 | break; | |
1833 | ||
35ea11ff | 1834 | dbgarg(cmd, "type=%d\n", p->type); |
a399810c | 1835 | ret = ops->vidioc_s_parm(file, fh, p); |
35ea11ff HV |
1836 | break; |
1837 | } | |
1838 | case VIDIOC_G_TUNER: | |
1839 | { | |
1840 | struct v4l2_tuner *p = arg; | |
35ea11ff | 1841 | |
a399810c | 1842 | if (!ops->vidioc_g_tuner) |
35ea11ff HV |
1843 | break; |
1844 | ||
227690df HV |
1845 | p->type = (vfd->vfl_type == VFL_TYPE_RADIO) ? |
1846 | V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV; | |
a399810c | 1847 | ret = ops->vidioc_g_tuner(file, fh, p); |
35ea11ff HV |
1848 | if (!ret) |
1849 | dbgarg(cmd, "index=%d, name=%s, type=%d, " | |
1850 | "capability=0x%x, rangelow=%d, " | |
1851 | "rangehigh=%d, signal=%d, afc=%d, " | |
1852 | "rxsubchans=0x%x, audmode=%d\n", | |
1853 | p->index, p->name, p->type, | |
1854 | p->capability, p->rangelow, | |
1855 | p->rangehigh, p->signal, p->afc, | |
1856 | p->rxsubchans, p->audmode); | |
1857 | break; | |
1858 | } | |
1859 | case VIDIOC_S_TUNER: | |
1860 | { | |
1861 | struct v4l2_tuner *p = arg; | |
1862 | ||
a399810c | 1863 | if (!ops->vidioc_s_tuner) |
35ea11ff | 1864 | break; |
227690df HV |
1865 | p->type = (vfd->vfl_type == VFL_TYPE_RADIO) ? |
1866 | V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV; | |
35ea11ff HV |
1867 | dbgarg(cmd, "index=%d, name=%s, type=%d, " |
1868 | "capability=0x%x, rangelow=%d, " | |
1869 | "rangehigh=%d, signal=%d, afc=%d, " | |
1870 | "rxsubchans=0x%x, audmode=%d\n", | |
1871 | p->index, p->name, p->type, | |
1872 | p->capability, p->rangelow, | |
1873 | p->rangehigh, p->signal, p->afc, | |
1874 | p->rxsubchans, p->audmode); | |
a399810c | 1875 | ret = ops->vidioc_s_tuner(file, fh, p); |
35ea11ff HV |
1876 | break; |
1877 | } | |
1878 | case VIDIOC_G_FREQUENCY: | |
1879 | { | |
1880 | struct v4l2_frequency *p = arg; | |
1881 | ||
a399810c | 1882 | if (!ops->vidioc_g_frequency) |
35ea11ff HV |
1883 | break; |
1884 | ||
227690df HV |
1885 | p->type = (vfd->vfl_type == VFL_TYPE_RADIO) ? |
1886 | V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV; | |
a399810c | 1887 | ret = ops->vidioc_g_frequency(file, fh, p); |
35ea11ff HV |
1888 | if (!ret) |
1889 | dbgarg(cmd, "tuner=%d, type=%d, frequency=%d\n", | |
1890 | p->tuner, p->type, p->frequency); | |
1891 | break; | |
1892 | } | |
1893 | case VIDIOC_S_FREQUENCY: | |
1894 | { | |
1895 | struct v4l2_frequency *p = arg; | |
1896 | ||
a399810c | 1897 | if (!ops->vidioc_s_frequency) |
35ea11ff HV |
1898 | break; |
1899 | dbgarg(cmd, "tuner=%d, type=%d, frequency=%d\n", | |
1900 | p->tuner, p->type, p->frequency); | |
a399810c | 1901 | ret = ops->vidioc_s_frequency(file, fh, p); |
35ea11ff HV |
1902 | break; |
1903 | } | |
1904 | case VIDIOC_G_SLICED_VBI_CAP: | |
1905 | { | |
1906 | struct v4l2_sliced_vbi_cap *p = arg; | |
35ea11ff | 1907 | |
a399810c | 1908 | if (!ops->vidioc_g_sliced_vbi_cap) |
35ea11ff | 1909 | break; |
19c96e4b TP |
1910 | |
1911 | /* Clear up to type, everything after type is zerod already */ | |
1912 | memset(p, 0, offsetof(struct v4l2_sliced_vbi_cap, type)); | |
1913 | ||
35ea11ff | 1914 | dbgarg(cmd, "type=%s\n", prt_names(p->type, v4l2_type_names)); |
a399810c | 1915 | ret = ops->vidioc_g_sliced_vbi_cap(file, fh, p); |
35ea11ff HV |
1916 | if (!ret) |
1917 | dbgarg2("service_set=%d\n", p->service_set); | |
1918 | break; | |
1919 | } | |
1920 | case VIDIOC_LOG_STATUS: | |
1921 | { | |
a399810c | 1922 | if (!ops->vidioc_log_status) |
35ea11ff | 1923 | break; |
a399810c | 1924 | ret = ops->vidioc_log_status(file, fh); |
35ea11ff HV |
1925 | break; |
1926 | } | |
1927 | #ifdef CONFIG_VIDEO_ADV_DEBUG | |
1928 | case VIDIOC_DBG_G_REGISTER: | |
1929 | { | |
aecde8b5 | 1930 | struct v4l2_dbg_register *p = arg; |
35ea11ff | 1931 | |
a1198ccf HV |
1932 | if (ops->vidioc_g_register) { |
1933 | if (!capable(CAP_SYS_ADMIN)) | |
1934 | ret = -EPERM; | |
1935 | else | |
1936 | ret = ops->vidioc_g_register(file, fh, p); | |
1937 | } | |
35ea11ff HV |
1938 | break; |
1939 | } | |
1940 | case VIDIOC_DBG_S_REGISTER: | |
1941 | { | |
aecde8b5 | 1942 | struct v4l2_dbg_register *p = arg; |
35ea11ff | 1943 | |
a1198ccf HV |
1944 | if (ops->vidioc_s_register) { |
1945 | if (!capable(CAP_SYS_ADMIN)) | |
1946 | ret = -EPERM; | |
1947 | else | |
1948 | ret = ops->vidioc_s_register(file, fh, p); | |
1949 | } | |
35ea11ff HV |
1950 | break; |
1951 | } | |
1952 | #endif | |
aecde8b5 | 1953 | case VIDIOC_DBG_G_CHIP_IDENT: |
35ea11ff | 1954 | { |
aecde8b5 | 1955 | struct v4l2_dbg_chip_ident *p = arg; |
35ea11ff | 1956 | |
a399810c | 1957 | if (!ops->vidioc_g_chip_ident) |
35ea11ff | 1958 | break; |
80b36e0f HV |
1959 | p->ident = V4L2_IDENT_NONE; |
1960 | p->revision = 0; | |
a399810c | 1961 | ret = ops->vidioc_g_chip_ident(file, fh, p); |
35ea11ff HV |
1962 | if (!ret) |
1963 | dbgarg(cmd, "chip_ident=%u, revision=0x%x\n", p->ident, p->revision); | |
1964 | break; | |
1965 | } | |
35ea11ff HV |
1966 | case VIDIOC_S_HW_FREQ_SEEK: |
1967 | { | |
1968 | struct v4l2_hw_freq_seek *p = arg; | |
a6cf90a9 | 1969 | enum v4l2_tuner_type type; |
35ea11ff | 1970 | |
a399810c | 1971 | if (!ops->vidioc_s_hw_freq_seek) |
35ea11ff | 1972 | break; |
a6cf90a9 HV |
1973 | type = (vfd->vfl_type == VFL_TYPE_RADIO) ? |
1974 | V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV; | |
35ea11ff | 1975 | dbgarg(cmd, |
a6cf90a9 HV |
1976 | "tuner=%u, type=%u, seek_upward=%u, wrap_around=%u, spacing=%u\n", |
1977 | p->tuner, p->type, p->seek_upward, p->wrap_around, p->spacing); | |
1978 | if (p->type != type) | |
1979 | ret = -EINVAL; | |
1980 | else | |
1981 | ret = ops->vidioc_s_hw_freq_seek(file, fh, p); | |
a399810c HV |
1982 | break; |
1983 | } | |
74d83fa0 MCC |
1984 | case VIDIOC_ENUM_FRAMESIZES: |
1985 | { | |
1986 | struct v4l2_frmsizeenum *p = arg; | |
1987 | ||
1988 | if (!ops->vidioc_enum_framesizes) | |
1989 | break; | |
1990 | ||
74d83fa0 MCC |
1991 | ret = ops->vidioc_enum_framesizes(file, fh, p); |
1992 | dbgarg(cmd, | |
d1afe425 MCC |
1993 | "index=%d, pixelformat=%c%c%c%c, type=%d ", |
1994 | p->index, | |
1995 | (p->pixel_format & 0xff), | |
1996 | (p->pixel_format >> 8) & 0xff, | |
1997 | (p->pixel_format >> 16) & 0xff, | |
1998 | (p->pixel_format >> 24) & 0xff, | |
1999 | p->type); | |
74d83fa0 MCC |
2000 | switch (p->type) { |
2001 | case V4L2_FRMSIZE_TYPE_DISCRETE: | |
d33fbcbb | 2002 | dbgarg3("width = %d, height=%d\n", |
74d83fa0 MCC |
2003 | p->discrete.width, p->discrete.height); |
2004 | break; | |
2005 | case V4L2_FRMSIZE_TYPE_STEPWISE: | |
d33fbcbb | 2006 | dbgarg3("min %dx%d, max %dx%d, step %dx%d\n", |
74d83fa0 MCC |
2007 | p->stepwise.min_width, p->stepwise.min_height, |
2008 | p->stepwise.step_width, p->stepwise.step_height, | |
2009 | p->stepwise.max_width, p->stepwise.max_height); | |
2010 | break; | |
2011 | case V4L2_FRMSIZE_TYPE_CONTINUOUS: | |
d33fbcbb | 2012 | dbgarg3("continuous\n"); |
74d83fa0 MCC |
2013 | break; |
2014 | default: | |
d33fbcbb | 2015 | dbgarg3("- Unknown type!\n"); |
74d83fa0 MCC |
2016 | } |
2017 | ||
2018 | break; | |
2019 | } | |
2020 | case VIDIOC_ENUM_FRAMEINTERVALS: | |
2021 | { | |
2022 | struct v4l2_frmivalenum *p = arg; | |
2023 | ||
2024 | if (!ops->vidioc_enum_frameintervals) | |
2025 | break; | |
2026 | ||
74d83fa0 MCC |
2027 | ret = ops->vidioc_enum_frameintervals(file, fh, p); |
2028 | dbgarg(cmd, | |
2029 | "index=%d, pixelformat=%d, width=%d, height=%d, type=%d ", | |
2030 | p->index, p->pixel_format, | |
2031 | p->width, p->height, p->type); | |
2032 | switch (p->type) { | |
2033 | case V4L2_FRMIVAL_TYPE_DISCRETE: | |
2034 | dbgarg2("fps=%d/%d\n", | |
2035 | p->discrete.numerator, | |
2036 | p->discrete.denominator); | |
2037 | break; | |
2038 | case V4L2_FRMIVAL_TYPE_STEPWISE: | |
1958578d MCC |
2039 | dbgarg2("min=%d/%d, max=%d/%d, step=%d/%d\n", |
2040 | p->stepwise.min.numerator, | |
2041 | p->stepwise.min.denominator, | |
2042 | p->stepwise.max.numerator, | |
2043 | p->stepwise.max.denominator, | |
2044 | p->stepwise.step.numerator, | |
2045 | p->stepwise.step.denominator); | |
74d83fa0 MCC |
2046 | break; |
2047 | case V4L2_FRMIVAL_TYPE_CONTINUOUS: | |
2048 | dbgarg2("continuous\n"); | |
2049 | break; | |
2050 | default: | |
2051 | dbgarg2("- Unknown type!\n"); | |
2052 | } | |
2053 | break; | |
2054 | } | |
b6456c0c MK |
2055 | case VIDIOC_ENUM_DV_PRESETS: |
2056 | { | |
2057 | struct v4l2_dv_enum_preset *p = arg; | |
2058 | ||
2059 | if (!ops->vidioc_enum_dv_presets) | |
2060 | break; | |
2061 | ||
2062 | ret = ops->vidioc_enum_dv_presets(file, fh, p); | |
2063 | if (!ret) | |
2064 | dbgarg(cmd, | |
2065 | "index=%d, preset=%d, name=%s, width=%d," | |
2066 | " height=%d ", | |
2067 | p->index, p->preset, p->name, p->width, | |
2068 | p->height); | |
2069 | break; | |
2070 | } | |
2071 | case VIDIOC_S_DV_PRESET: | |
2072 | { | |
2073 | struct v4l2_dv_preset *p = arg; | |
2074 | ||
2075 | if (!ops->vidioc_s_dv_preset) | |
2076 | break; | |
2077 | ||
2078 | dbgarg(cmd, "preset=%d\n", p->preset); | |
2079 | ret = ops->vidioc_s_dv_preset(file, fh, p); | |
2080 | break; | |
2081 | } | |
2082 | case VIDIOC_G_DV_PRESET: | |
2083 | { | |
2084 | struct v4l2_dv_preset *p = arg; | |
2085 | ||
2086 | if (!ops->vidioc_g_dv_preset) | |
2087 | break; | |
2088 | ||
2089 | ret = ops->vidioc_g_dv_preset(file, fh, p); | |
2090 | if (!ret) | |
2091 | dbgarg(cmd, "preset=%d\n", p->preset); | |
2092 | break; | |
2093 | } | |
2094 | case VIDIOC_QUERY_DV_PRESET: | |
2095 | { | |
2096 | struct v4l2_dv_preset *p = arg; | |
2097 | ||
2098 | if (!ops->vidioc_query_dv_preset) | |
2099 | break; | |
2100 | ||
2101 | ret = ops->vidioc_query_dv_preset(file, fh, p); | |
2102 | if (!ret) | |
2103 | dbgarg(cmd, "preset=%d\n", p->preset); | |
2104 | break; | |
2105 | } | |
2106 | case VIDIOC_S_DV_TIMINGS: | |
2107 | { | |
2108 | struct v4l2_dv_timings *p = arg; | |
2109 | ||
2110 | if (!ops->vidioc_s_dv_timings) | |
2111 | break; | |
2112 | ||
2113 | switch (p->type) { | |
2114 | case V4L2_DV_BT_656_1120: | |
2115 | dbgarg2("bt-656/1120:interlaced=%d, pixelclock=%lld," | |
2116 | " width=%d, height=%d, polarities=%x," | |
2117 | " hfrontporch=%d, hsync=%d, hbackporch=%d," | |
2118 | " vfrontporch=%d, vsync=%d, vbackporch=%d," | |
2119 | " il_vfrontporch=%d, il_vsync=%d," | |
2120 | " il_vbackporch=%d\n", | |
2121 | p->bt.interlaced, p->bt.pixelclock, | |
2122 | p->bt.width, p->bt.height, p->bt.polarities, | |
2123 | p->bt.hfrontporch, p->bt.hsync, | |
2124 | p->bt.hbackporch, p->bt.vfrontporch, | |
2125 | p->bt.vsync, p->bt.vbackporch, | |
2126 | p->bt.il_vfrontporch, p->bt.il_vsync, | |
2127 | p->bt.il_vbackporch); | |
2128 | ret = ops->vidioc_s_dv_timings(file, fh, p); | |
2129 | break; | |
2130 | default: | |
2131 | dbgarg2("Unknown type %d!\n", p->type); | |
2132 | break; | |
2133 | } | |
2134 | break; | |
2135 | } | |
2136 | case VIDIOC_G_DV_TIMINGS: | |
2137 | { | |
2138 | struct v4l2_dv_timings *p = arg; | |
2139 | ||
2140 | if (!ops->vidioc_g_dv_timings) | |
2141 | break; | |
2142 | ||
2143 | ret = ops->vidioc_g_dv_timings(file, fh, p); | |
2144 | if (!ret) { | |
2145 | switch (p->type) { | |
2146 | case V4L2_DV_BT_656_1120: | |
2147 | dbgarg2("bt-656/1120:interlaced=%d," | |
2148 | " pixelclock=%lld," | |
2149 | " width=%d, height=%d, polarities=%x," | |
2150 | " hfrontporch=%d, hsync=%d," | |
2151 | " hbackporch=%d, vfrontporch=%d," | |
2152 | " vsync=%d, vbackporch=%d," | |
2153 | " il_vfrontporch=%d, il_vsync=%d," | |
2154 | " il_vbackporch=%d\n", | |
2155 | p->bt.interlaced, p->bt.pixelclock, | |
2156 | p->bt.width, p->bt.height, | |
2157 | p->bt.polarities, p->bt.hfrontporch, | |
2158 | p->bt.hsync, p->bt.hbackporch, | |
2159 | p->bt.vfrontporch, p->bt.vsync, | |
2160 | p->bt.vbackporch, p->bt.il_vfrontporch, | |
2161 | p->bt.il_vsync, p->bt.il_vbackporch); | |
2162 | break; | |
2163 | default: | |
2164 | dbgarg2("Unknown type %d!\n", p->type); | |
2165 | break; | |
2166 | } | |
2167 | } | |
2168 | break; | |
2169 | } | |
d3d7c963 SA |
2170 | case VIDIOC_DQEVENT: |
2171 | { | |
2172 | struct v4l2_event *ev = arg; | |
2173 | ||
2174 | if (!ops->vidioc_subscribe_event) | |
2175 | break; | |
2176 | ||
2177 | ret = v4l2_event_dequeue(fh, ev, file->f_flags & O_NONBLOCK); | |
2178 | if (ret < 0) { | |
2179 | dbgarg(cmd, "no pending events?"); | |
2180 | break; | |
2181 | } | |
2182 | dbgarg(cmd, | |
2183 | "pending=%d, type=0x%8.8x, sequence=%d, " | |
2184 | "timestamp=%lu.%9.9lu ", | |
2185 | ev->pending, ev->type, ev->sequence, | |
2186 | ev->timestamp.tv_sec, ev->timestamp.tv_nsec); | |
2187 | break; | |
2188 | } | |
2189 | case VIDIOC_SUBSCRIBE_EVENT: | |
2190 | { | |
2191 | struct v4l2_event_subscription *sub = arg; | |
2192 | ||
2193 | if (!ops->vidioc_subscribe_event) | |
2194 | break; | |
74d83fa0 | 2195 | |
d3d7c963 SA |
2196 | ret = ops->vidioc_subscribe_event(fh, sub); |
2197 | if (ret < 0) { | |
2198 | dbgarg(cmd, "failed, ret=%ld", ret); | |
2199 | break; | |
2200 | } | |
2201 | dbgarg(cmd, "type=0x%8.8x", sub->type); | |
2202 | break; | |
2203 | } | |
2204 | case VIDIOC_UNSUBSCRIBE_EVENT: | |
2205 | { | |
2206 | struct v4l2_event_subscription *sub = arg; | |
2207 | ||
2208 | if (!ops->vidioc_unsubscribe_event) | |
2209 | break; | |
2210 | ||
2211 | ret = ops->vidioc_unsubscribe_event(fh, sub); | |
2212 | if (ret < 0) { | |
2213 | dbgarg(cmd, "failed, ret=%ld", ret); | |
2214 | break; | |
2215 | } | |
2216 | dbgarg(cmd, "type=0x%8.8x", sub->type); | |
2217 | break; | |
2218 | } | |
a399810c HV |
2219 | default: |
2220 | { | |
99cd47bc HV |
2221 | bool valid_prio = true; |
2222 | ||
a399810c HV |
2223 | if (!ops->vidioc_default) |
2224 | break; | |
b1a873a3 | 2225 | if (use_fh_prio) |
99cd47bc HV |
2226 | valid_prio = v4l2_prio_check(vfd->prio, vfh->prio) >= 0; |
2227 | ret = ops->vidioc_default(file, fh, valid_prio, cmd, arg); | |
35ea11ff HV |
2228 | break; |
2229 | } | |
2230 | } /* switch */ | |
2231 | ||
99cd47bc | 2232 | exit_prio: |
35ea11ff HV |
2233 | if (vfd->debug & V4L2_DEBUG_IOCTL_ARG) { |
2234 | if (ret < 0) { | |
2235 | v4l_print_ioctl(vfd->name, cmd); | |
069b7479 | 2236 | printk(KERN_CONT " error %ld\n", ret); |
35ea11ff HV |
2237 | } |
2238 | } | |
2239 | ||
2240 | return ret; | |
2241 | } | |
2242 | ||
19c96e4b TP |
2243 | /* In some cases, only a few fields are used as input, i.e. when the app sets |
2244 | * "index" and then the driver fills in the rest of the structure for the thing | |
2245 | * with that index. We only need to copy up the first non-input field. */ | |
2246 | static unsigned long cmd_input_size(unsigned int cmd) | |
2247 | { | |
2248 | /* Size of structure up to and including 'field' */ | |
9f1a693f HV |
2249 | #define CMDINSIZE(cmd, type, field) \ |
2250 | case VIDIOC_##cmd: \ | |
2251 | return offsetof(struct v4l2_##type, field) + \ | |
2252 | sizeof(((struct v4l2_##type *)0)->field); | |
19c96e4b | 2253 | |
9f1a693f | 2254 | switch (cmd) { |
19c96e4b TP |
2255 | CMDINSIZE(ENUM_FMT, fmtdesc, type); |
2256 | CMDINSIZE(G_FMT, format, type); | |
d14e6d76 | 2257 | CMDINSIZE(QUERYBUF, buffer, length); |
19c96e4b TP |
2258 | CMDINSIZE(G_PARM, streamparm, type); |
2259 | CMDINSIZE(ENUMSTD, standard, index); | |
2260 | CMDINSIZE(ENUMINPUT, input, index); | |
2261 | CMDINSIZE(G_CTRL, control, id); | |
2262 | CMDINSIZE(G_TUNER, tuner, index); | |
2263 | CMDINSIZE(QUERYCTRL, queryctrl, id); | |
2264 | CMDINSIZE(QUERYMENU, querymenu, index); | |
2265 | CMDINSIZE(ENUMOUTPUT, output, index); | |
2266 | CMDINSIZE(G_MODULATOR, modulator, index); | |
2267 | CMDINSIZE(G_FREQUENCY, frequency, tuner); | |
2268 | CMDINSIZE(CROPCAP, cropcap, type); | |
2269 | CMDINSIZE(G_CROP, crop, type); | |
2270 | CMDINSIZE(ENUMAUDIO, audio, index); | |
2271 | CMDINSIZE(ENUMAUDOUT, audioout, index); | |
2272 | CMDINSIZE(ENCODER_CMD, encoder_cmd, flags); | |
2273 | CMDINSIZE(TRY_ENCODER_CMD, encoder_cmd, flags); | |
2274 | CMDINSIZE(G_SLICED_VBI_CAP, sliced_vbi_cap, type); | |
2275 | CMDINSIZE(ENUM_FRAMESIZES, frmsizeenum, pixel_format); | |
2276 | CMDINSIZE(ENUM_FRAMEINTERVALS, frmivalenum, height); | |
2277 | default: | |
2278 | return _IOC_SIZE(cmd); | |
2279 | } | |
2280 | } | |
2281 | ||
d14e6d76 PO |
2282 | static int check_array_args(unsigned int cmd, void *parg, size_t *array_size, |
2283 | void * __user *user_ptr, void ***kernel_ptr) | |
2284 | { | |
2285 | int ret = 0; | |
2286 | ||
2287 | switch (cmd) { | |
2288 | case VIDIOC_QUERYBUF: | |
2289 | case VIDIOC_QBUF: | |
2290 | case VIDIOC_DQBUF: { | |
2291 | struct v4l2_buffer *buf = parg; | |
2292 | ||
2293 | if (V4L2_TYPE_IS_MULTIPLANAR(buf->type) && buf->length > 0) { | |
2294 | if (buf->length > VIDEO_MAX_PLANES) { | |
2295 | ret = -EINVAL; | |
2296 | break; | |
2297 | } | |
2298 | *user_ptr = (void __user *)buf->m.planes; | |
2ef40370 | 2299 | *kernel_ptr = (void *)&buf->m.planes; |
d14e6d76 PO |
2300 | *array_size = sizeof(struct v4l2_plane) * buf->length; |
2301 | ret = 1; | |
2302 | } | |
2303 | break; | |
2304 | } | |
2305 | ||
2306 | case VIDIOC_S_EXT_CTRLS: | |
2307 | case VIDIOC_G_EXT_CTRLS: | |
2308 | case VIDIOC_TRY_EXT_CTRLS: { | |
2309 | struct v4l2_ext_controls *ctrls = parg; | |
2310 | ||
2311 | if (ctrls->count != 0) { | |
2312 | *user_ptr = (void __user *)ctrls->controls; | |
2ef40370 | 2313 | *kernel_ptr = (void *)&ctrls->controls; |
d14e6d76 PO |
2314 | *array_size = sizeof(struct v4l2_ext_control) |
2315 | * ctrls->count; | |
2316 | ret = 1; | |
2317 | } | |
2318 | break; | |
2319 | } | |
2320 | } | |
2321 | ||
2322 | return ret; | |
2323 | } | |
2324 | ||
fc0a8079 LP |
2325 | long |
2326 | video_usercopy(struct file *file, unsigned int cmd, unsigned long arg, | |
2327 | v4l2_kioctl func) | |
35ea11ff HV |
2328 | { |
2329 | char sbuf[128]; | |
2330 | void *mbuf = NULL; | |
1d94aa36 | 2331 | void *parg = (void *)arg; |
069b7479 | 2332 | long err = -EINVAL; |
d14e6d76 PO |
2333 | bool has_array_args; |
2334 | size_t array_size = 0; | |
35ea11ff | 2335 | void __user *user_ptr = NULL; |
d14e6d76 | 2336 | void **kernel_ptr = NULL; |
35ea11ff | 2337 | |
35ea11ff | 2338 | /* Copy arguments into temp kernel buffer */ |
337f9d20 | 2339 | if (_IOC_DIR(cmd) != _IOC_NONE) { |
35ea11ff HV |
2340 | if (_IOC_SIZE(cmd) <= sizeof(sbuf)) { |
2341 | parg = sbuf; | |
2342 | } else { | |
2343 | /* too big to allocate from stack */ | |
2344 | mbuf = kmalloc(_IOC_SIZE(cmd), GFP_KERNEL); | |
2345 | if (NULL == mbuf) | |
2346 | return -ENOMEM; | |
2347 | parg = mbuf; | |
2348 | } | |
2349 | ||
2350 | err = -EFAULT; | |
19c96e4b TP |
2351 | if (_IOC_DIR(cmd) & _IOC_WRITE) { |
2352 | unsigned long n = cmd_input_size(cmd); | |
2353 | ||
2354 | if (copy_from_user(parg, (void __user *)arg, n)) | |
35ea11ff | 2355 | goto out; |
19c96e4b TP |
2356 | |
2357 | /* zero out anything we don't copy from userspace */ | |
2358 | if (n < _IOC_SIZE(cmd)) | |
2359 | memset((u8 *)parg + n, 0, _IOC_SIZE(cmd) - n); | |
337f9d20 TP |
2360 | } else { |
2361 | /* read-only ioctl */ | |
2362 | memset(parg, 0, _IOC_SIZE(cmd)); | |
19c96e4b | 2363 | } |
35ea11ff HV |
2364 | } |
2365 | ||
d14e6d76 PO |
2366 | err = check_array_args(cmd, parg, &array_size, &user_ptr, &kernel_ptr); |
2367 | if (err < 0) | |
2368 | goto out; | |
2369 | has_array_args = err; | |
35ea11ff | 2370 | |
d14e6d76 PO |
2371 | if (has_array_args) { |
2372 | /* | |
2373 | * When adding new types of array args, make sure that the | |
2374 | * parent argument to ioctl (which contains the pointer to the | |
2375 | * array) fits into sbuf (so that mbuf will still remain | |
2376 | * unused up to here). | |
2377 | */ | |
2378 | mbuf = kmalloc(array_size, GFP_KERNEL); | |
2379 | err = -ENOMEM; | |
2380 | if (NULL == mbuf) | |
2381 | goto out_array_args; | |
2382 | err = -EFAULT; | |
2383 | if (copy_from_user(mbuf, user_ptr, array_size)) | |
2384 | goto out_array_args; | |
2385 | *kernel_ptr = mbuf; | |
35ea11ff HV |
2386 | } |
2387 | ||
2388 | /* Handles IOCTL */ | |
fc0a8079 | 2389 | err = func(file, cmd, parg); |
35ea11ff HV |
2390 | if (err == -ENOIOCTLCMD) |
2391 | err = -EINVAL; | |
35ea11ff | 2392 | |
d14e6d76 PO |
2393 | if (has_array_args) { |
2394 | *kernel_ptr = user_ptr; | |
2395 | if (copy_to_user(user_ptr, mbuf, array_size)) | |
35ea11ff | 2396 | err = -EFAULT; |
d14e6d76 | 2397 | goto out_array_args; |
35ea11ff HV |
2398 | } |
2399 | if (err < 0) | |
2400 | goto out; | |
2401 | ||
d14e6d76 | 2402 | out_array_args: |
35ea11ff HV |
2403 | /* Copy results into user buffer */ |
2404 | switch (_IOC_DIR(cmd)) { | |
2405 | case _IOC_READ: | |
2406 | case (_IOC_WRITE | _IOC_READ): | |
2407 | if (copy_to_user((void __user *)arg, parg, _IOC_SIZE(cmd))) | |
2408 | err = -EFAULT; | |
2409 | break; | |
2410 | } | |
2411 | ||
2412 | out: | |
2413 | kfree(mbuf); | |
2414 | return err; | |
2415 | } | |
fc0a8079 LP |
2416 | EXPORT_SYMBOL(video_usercopy); |
2417 | ||
2418 | long video_ioctl2(struct file *file, | |
2419 | unsigned int cmd, unsigned long arg) | |
2420 | { | |
2421 | return video_usercopy(file, cmd, arg, __video_do_ioctl); | |
2422 | } | |
8a522c91 | 2423 | EXPORT_SYMBOL(video_ioctl2); |