Commit | Line | Data |
---|---|---|
35ea11ff HV |
1 | /* |
2 | * Video capture interface for Linux version 2 | |
3 | * | |
4 | * A generic framework to process V4L2 ioctl commands. | |
5 | * | |
6 | * This program is free software; you can redistribute it and/or | |
7 | * modify it under the terms of the GNU General Public License | |
8 | * as published by the Free Software Foundation; either version | |
9 | * 2 of the License, or (at your option) any later version. | |
10 | * | |
d9b01449 | 11 | * Authors: Alan Cox, <alan@lxorguk.ukuu.org.uk> (version 1) |
35ea11ff HV |
12 | * Mauro Carvalho Chehab <mchehab@infradead.org> (version 2) |
13 | */ | |
14 | ||
15 | #include <linux/module.h> | |
5a0e3ad6 | 16 | #include <linux/slab.h> |
35ea11ff HV |
17 | #include <linux/types.h> |
18 | #include <linux/kernel.h> | |
ae6db515 | 19 | #include <linux/version.h> |
35ea11ff | 20 | |
35ea11ff HV |
21 | #include <linux/videodev2.h> |
22 | ||
35ea11ff HV |
23 | #include <media/v4l2-common.h> |
24 | #include <media/v4l2-ioctl.h> | |
11bbc1ca | 25 | #include <media/v4l2-ctrls.h> |
d3d7c963 SA |
26 | #include <media/v4l2-fh.h> |
27 | #include <media/v4l2-event.h> | |
99cd47bc | 28 | #include <media/v4l2-device.h> |
80b36e0f | 29 | #include <media/v4l2-chip-ident.h> |
35ea11ff HV |
30 | |
31 | #define dbgarg(cmd, fmt, arg...) \ | |
32 | do { \ | |
33 | if (vfd->debug & V4L2_DEBUG_IOCTL_ARG) { \ | |
34 | printk(KERN_DEBUG "%s: ", vfd->name); \ | |
35 | v4l_printk_ioctl(cmd); \ | |
36 | printk(" " fmt, ## arg); \ | |
37 | } \ | |
38 | } while (0) | |
39 | ||
40 | #define dbgarg2(fmt, arg...) \ | |
41 | do { \ | |
42 | if (vfd->debug & V4L2_DEBUG_IOCTL_ARG) \ | |
43 | printk(KERN_DEBUG "%s: " fmt, vfd->name, ## arg);\ | |
44 | } while (0) | |
45 | ||
d33fbcbb MCC |
46 | #define dbgarg3(fmt, arg...) \ |
47 | do { \ | |
48 | if (vfd->debug & V4L2_DEBUG_IOCTL_ARG) \ | |
49 | printk(KERN_CONT "%s: " fmt, vfd->name, ## arg);\ | |
50 | } while (0) | |
51 | ||
25985edc | 52 | /* Zero out the end of the struct pointed to by p. Everything after, but |
7ecc0cf9 TP |
53 | * not including, the specified field is cleared. */ |
54 | #define CLEAR_AFTER_FIELD(p, field) \ | |
55 | memset((u8 *)(p) + offsetof(typeof(*(p)), field) + sizeof((p)->field), \ | |
56 | 0, sizeof(*(p)) - offsetof(typeof(*(p)), field) - sizeof((p)->field)) | |
57 | ||
35ea11ff HV |
58 | struct std_descr { |
59 | v4l2_std_id std; | |
60 | const char *descr; | |
61 | }; | |
62 | ||
63 | static const struct std_descr standards[] = { | |
64 | { V4L2_STD_NTSC, "NTSC" }, | |
65 | { V4L2_STD_NTSC_M, "NTSC-M" }, | |
66 | { V4L2_STD_NTSC_M_JP, "NTSC-M-JP" }, | |
67 | { V4L2_STD_NTSC_M_KR, "NTSC-M-KR" }, | |
68 | { V4L2_STD_NTSC_443, "NTSC-443" }, | |
69 | { V4L2_STD_PAL, "PAL" }, | |
70 | { V4L2_STD_PAL_BG, "PAL-BG" }, | |
71 | { V4L2_STD_PAL_B, "PAL-B" }, | |
72 | { V4L2_STD_PAL_B1, "PAL-B1" }, | |
73 | { V4L2_STD_PAL_G, "PAL-G" }, | |
74 | { V4L2_STD_PAL_H, "PAL-H" }, | |
75 | { V4L2_STD_PAL_I, "PAL-I" }, | |
76 | { V4L2_STD_PAL_DK, "PAL-DK" }, | |
77 | { V4L2_STD_PAL_D, "PAL-D" }, | |
78 | { V4L2_STD_PAL_D1, "PAL-D1" }, | |
79 | { V4L2_STD_PAL_K, "PAL-K" }, | |
80 | { V4L2_STD_PAL_M, "PAL-M" }, | |
81 | { V4L2_STD_PAL_N, "PAL-N" }, | |
82 | { V4L2_STD_PAL_Nc, "PAL-Nc" }, | |
83 | { V4L2_STD_PAL_60, "PAL-60" }, | |
84 | { V4L2_STD_SECAM, "SECAM" }, | |
85 | { V4L2_STD_SECAM_B, "SECAM-B" }, | |
86 | { V4L2_STD_SECAM_G, "SECAM-G" }, | |
87 | { V4L2_STD_SECAM_H, "SECAM-H" }, | |
88 | { V4L2_STD_SECAM_DK, "SECAM-DK" }, | |
89 | { V4L2_STD_SECAM_D, "SECAM-D" }, | |
90 | { V4L2_STD_SECAM_K, "SECAM-K" }, | |
91 | { V4L2_STD_SECAM_K1, "SECAM-K1" }, | |
92 | { V4L2_STD_SECAM_L, "SECAM-L" }, | |
93 | { V4L2_STD_SECAM_LC, "SECAM-Lc" }, | |
94 | { 0, "Unknown" } | |
95 | }; | |
96 | ||
97 | /* video4linux standard ID conversion to standard name | |
98 | */ | |
99 | const char *v4l2_norm_to_name(v4l2_std_id id) | |
100 | { | |
101 | u32 myid = id; | |
102 | int i; | |
103 | ||
104 | /* HACK: ppc32 architecture doesn't have __ucmpdi2 function to handle | |
105 | 64 bit comparations. So, on that architecture, with some gcc | |
106 | variants, compilation fails. Currently, the max value is 30bit wide. | |
107 | */ | |
108 | BUG_ON(myid != id); | |
109 | ||
110 | for (i = 0; standards[i].std; i++) | |
111 | if (myid == standards[i].std) | |
112 | break; | |
113 | return standards[i].descr; | |
114 | } | |
115 | EXPORT_SYMBOL(v4l2_norm_to_name); | |
116 | ||
51f0b8d5 TP |
117 | /* Returns frame period for the given standard */ |
118 | void v4l2_video_std_frame_period(int id, struct v4l2_fract *frameperiod) | |
119 | { | |
120 | if (id & V4L2_STD_525_60) { | |
121 | frameperiod->numerator = 1001; | |
122 | frameperiod->denominator = 30000; | |
123 | } else { | |
124 | frameperiod->numerator = 1; | |
125 | frameperiod->denominator = 25; | |
126 | } | |
127 | } | |
128 | EXPORT_SYMBOL(v4l2_video_std_frame_period); | |
129 | ||
35ea11ff HV |
130 | /* Fill in the fields of a v4l2_standard structure according to the |
131 | 'id' and 'transmission' parameters. Returns negative on error. */ | |
132 | int v4l2_video_std_construct(struct v4l2_standard *vs, | |
133 | int id, const char *name) | |
134 | { | |
51f0b8d5 TP |
135 | vs->id = id; |
136 | v4l2_video_std_frame_period(id, &vs->frameperiod); | |
137 | vs->framelines = (id & V4L2_STD_525_60) ? 525 : 625; | |
35ea11ff HV |
138 | strlcpy(vs->name, name, sizeof(vs->name)); |
139 | return 0; | |
140 | } | |
141 | EXPORT_SYMBOL(v4l2_video_std_construct); | |
142 | ||
143 | /* ----------------------------------------------------------------- */ | |
144 | /* some arrays for pretty-printing debug messages of enum types */ | |
145 | ||
146 | const char *v4l2_field_names[] = { | |
147 | [V4L2_FIELD_ANY] = "any", | |
148 | [V4L2_FIELD_NONE] = "none", | |
149 | [V4L2_FIELD_TOP] = "top", | |
150 | [V4L2_FIELD_BOTTOM] = "bottom", | |
151 | [V4L2_FIELD_INTERLACED] = "interlaced", | |
152 | [V4L2_FIELD_SEQ_TB] = "seq-tb", | |
153 | [V4L2_FIELD_SEQ_BT] = "seq-bt", | |
154 | [V4L2_FIELD_ALTERNATE] = "alternate", | |
155 | [V4L2_FIELD_INTERLACED_TB] = "interlaced-tb", | |
156 | [V4L2_FIELD_INTERLACED_BT] = "interlaced-bt", | |
157 | }; | |
158 | EXPORT_SYMBOL(v4l2_field_names); | |
159 | ||
160 | const char *v4l2_type_names[] = { | |
161 | [V4L2_BUF_TYPE_VIDEO_CAPTURE] = "vid-cap", | |
162 | [V4L2_BUF_TYPE_VIDEO_OVERLAY] = "vid-overlay", | |
163 | [V4L2_BUF_TYPE_VIDEO_OUTPUT] = "vid-out", | |
164 | [V4L2_BUF_TYPE_VBI_CAPTURE] = "vbi-cap", | |
165 | [V4L2_BUF_TYPE_VBI_OUTPUT] = "vbi-out", | |
166 | [V4L2_BUF_TYPE_SLICED_VBI_CAPTURE] = "sliced-vbi-cap", | |
167 | [V4L2_BUF_TYPE_SLICED_VBI_OUTPUT] = "sliced-vbi-out", | |
168 | [V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY] = "vid-out-overlay", | |
f8f3914c PO |
169 | [V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE] = "vid-cap-mplane", |
170 | [V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE] = "vid-out-mplane", | |
35ea11ff HV |
171 | }; |
172 | EXPORT_SYMBOL(v4l2_type_names); | |
173 | ||
174 | static const char *v4l2_memory_names[] = { | |
175 | [V4L2_MEMORY_MMAP] = "mmap", | |
176 | [V4L2_MEMORY_USERPTR] = "userptr", | |
177 | [V4L2_MEMORY_OVERLAY] = "overlay", | |
178 | }; | |
179 | ||
180 | #define prt_names(a, arr) ((((a) >= 0) && ((a) < ARRAY_SIZE(arr))) ? \ | |
181 | arr[a] : "unknown") | |
182 | ||
183 | /* ------------------------------------------------------------------ */ | |
184 | /* debug help functions */ | |
8ab75e3e HV |
185 | |
186 | struct v4l2_ioctl_info { | |
187 | unsigned int ioctl; | |
48ea0be0 | 188 | u16 flags; |
8ab75e3e HV |
189 | const char * const name; |
190 | }; | |
191 | ||
4b902fec HV |
192 | /* This control needs a priority check */ |
193 | #define INFO_FL_PRIO (1 << 0) | |
48ea0be0 HV |
194 | /* This control can be valid if the filehandle passes a control handler. */ |
195 | #define INFO_FL_CTRL (1 << 1) | |
196 | ||
197 | #define IOCTL_INFO(_ioctl, _flags) [_IOC_NR(_ioctl)] = { \ | |
198 | .ioctl = _ioctl, \ | |
199 | .flags = _flags, \ | |
200 | .name = #_ioctl, \ | |
8ab75e3e HV |
201 | } |
202 | ||
203 | static struct v4l2_ioctl_info v4l2_ioctls[] = { | |
48ea0be0 HV |
204 | IOCTL_INFO(VIDIOC_QUERYCAP, 0), |
205 | IOCTL_INFO(VIDIOC_ENUM_FMT, 0), | |
206 | IOCTL_INFO(VIDIOC_G_FMT, 0), | |
4b902fec HV |
207 | IOCTL_INFO(VIDIOC_S_FMT, INFO_FL_PRIO), |
208 | IOCTL_INFO(VIDIOC_REQBUFS, INFO_FL_PRIO), | |
48ea0be0 HV |
209 | IOCTL_INFO(VIDIOC_QUERYBUF, 0), |
210 | IOCTL_INFO(VIDIOC_G_FBUF, 0), | |
4b902fec HV |
211 | IOCTL_INFO(VIDIOC_S_FBUF, INFO_FL_PRIO), |
212 | IOCTL_INFO(VIDIOC_OVERLAY, INFO_FL_PRIO), | |
48ea0be0 HV |
213 | IOCTL_INFO(VIDIOC_QBUF, 0), |
214 | IOCTL_INFO(VIDIOC_DQBUF, 0), | |
4b902fec HV |
215 | IOCTL_INFO(VIDIOC_STREAMON, INFO_FL_PRIO), |
216 | IOCTL_INFO(VIDIOC_STREAMOFF, INFO_FL_PRIO), | |
48ea0be0 | 217 | IOCTL_INFO(VIDIOC_G_PARM, 0), |
4b902fec | 218 | IOCTL_INFO(VIDIOC_S_PARM, INFO_FL_PRIO), |
48ea0be0 | 219 | IOCTL_INFO(VIDIOC_G_STD, 0), |
4b902fec | 220 | IOCTL_INFO(VIDIOC_S_STD, INFO_FL_PRIO), |
48ea0be0 HV |
221 | IOCTL_INFO(VIDIOC_ENUMSTD, 0), |
222 | IOCTL_INFO(VIDIOC_ENUMINPUT, 0), | |
223 | IOCTL_INFO(VIDIOC_G_CTRL, INFO_FL_CTRL), | |
4b902fec | 224 | IOCTL_INFO(VIDIOC_S_CTRL, INFO_FL_PRIO | INFO_FL_CTRL), |
48ea0be0 | 225 | IOCTL_INFO(VIDIOC_G_TUNER, 0), |
4b902fec | 226 | IOCTL_INFO(VIDIOC_S_TUNER, INFO_FL_PRIO), |
48ea0be0 | 227 | IOCTL_INFO(VIDIOC_G_AUDIO, 0), |
4b902fec | 228 | IOCTL_INFO(VIDIOC_S_AUDIO, INFO_FL_PRIO), |
48ea0be0 HV |
229 | IOCTL_INFO(VIDIOC_QUERYCTRL, INFO_FL_CTRL), |
230 | IOCTL_INFO(VIDIOC_QUERYMENU, INFO_FL_CTRL), | |
231 | IOCTL_INFO(VIDIOC_G_INPUT, 0), | |
4b902fec | 232 | IOCTL_INFO(VIDIOC_S_INPUT, INFO_FL_PRIO), |
48ea0be0 | 233 | IOCTL_INFO(VIDIOC_G_OUTPUT, 0), |
4b902fec | 234 | IOCTL_INFO(VIDIOC_S_OUTPUT, INFO_FL_PRIO), |
48ea0be0 HV |
235 | IOCTL_INFO(VIDIOC_ENUMOUTPUT, 0), |
236 | IOCTL_INFO(VIDIOC_G_AUDOUT, 0), | |
4b902fec | 237 | IOCTL_INFO(VIDIOC_S_AUDOUT, INFO_FL_PRIO), |
48ea0be0 | 238 | IOCTL_INFO(VIDIOC_G_MODULATOR, 0), |
4b902fec | 239 | IOCTL_INFO(VIDIOC_S_MODULATOR, INFO_FL_PRIO), |
48ea0be0 | 240 | IOCTL_INFO(VIDIOC_G_FREQUENCY, 0), |
4b902fec | 241 | IOCTL_INFO(VIDIOC_S_FREQUENCY, INFO_FL_PRIO), |
48ea0be0 HV |
242 | IOCTL_INFO(VIDIOC_CROPCAP, 0), |
243 | IOCTL_INFO(VIDIOC_G_CROP, 0), | |
4b902fec | 244 | IOCTL_INFO(VIDIOC_S_CROP, INFO_FL_PRIO), |
48ea0be0 | 245 | IOCTL_INFO(VIDIOC_G_SELECTION, 0), |
4b902fec | 246 | IOCTL_INFO(VIDIOC_S_SELECTION, INFO_FL_PRIO), |
48ea0be0 | 247 | IOCTL_INFO(VIDIOC_G_JPEGCOMP, 0), |
4b902fec | 248 | IOCTL_INFO(VIDIOC_S_JPEGCOMP, INFO_FL_PRIO), |
48ea0be0 HV |
249 | IOCTL_INFO(VIDIOC_QUERYSTD, 0), |
250 | IOCTL_INFO(VIDIOC_TRY_FMT, 0), | |
251 | IOCTL_INFO(VIDIOC_ENUMAUDIO, 0), | |
252 | IOCTL_INFO(VIDIOC_ENUMAUDOUT, 0), | |
253 | IOCTL_INFO(VIDIOC_G_PRIORITY, 0), | |
4b902fec | 254 | IOCTL_INFO(VIDIOC_S_PRIORITY, INFO_FL_PRIO), |
48ea0be0 HV |
255 | IOCTL_INFO(VIDIOC_G_SLICED_VBI_CAP, 0), |
256 | IOCTL_INFO(VIDIOC_LOG_STATUS, 0), | |
257 | IOCTL_INFO(VIDIOC_G_EXT_CTRLS, INFO_FL_CTRL), | |
4b902fec | 258 | IOCTL_INFO(VIDIOC_S_EXT_CTRLS, INFO_FL_PRIO | INFO_FL_CTRL), |
48ea0be0 HV |
259 | IOCTL_INFO(VIDIOC_TRY_EXT_CTRLS, 0), |
260 | IOCTL_INFO(VIDIOC_ENUM_FRAMESIZES, 0), | |
261 | IOCTL_INFO(VIDIOC_ENUM_FRAMEINTERVALS, 0), | |
262 | IOCTL_INFO(VIDIOC_G_ENC_INDEX, 0), | |
4b902fec | 263 | IOCTL_INFO(VIDIOC_ENCODER_CMD, INFO_FL_PRIO), |
48ea0be0 | 264 | IOCTL_INFO(VIDIOC_TRY_ENCODER_CMD, 0), |
4b902fec | 265 | IOCTL_INFO(VIDIOC_DECODER_CMD, INFO_FL_PRIO), |
48ea0be0 | 266 | IOCTL_INFO(VIDIOC_TRY_DECODER_CMD, 0), |
4b902fec | 267 | #ifdef CONFIG_VIDEO_ADV_DEBUG |
48ea0be0 HV |
268 | IOCTL_INFO(VIDIOC_DBG_S_REGISTER, 0), |
269 | IOCTL_INFO(VIDIOC_DBG_G_REGISTER, 0), | |
4b902fec | 270 | #endif |
48ea0be0 | 271 | IOCTL_INFO(VIDIOC_DBG_G_CHIP_IDENT, 0), |
4b902fec | 272 | IOCTL_INFO(VIDIOC_S_HW_FREQ_SEEK, INFO_FL_PRIO), |
48ea0be0 | 273 | IOCTL_INFO(VIDIOC_ENUM_DV_PRESETS, 0), |
4b902fec | 274 | IOCTL_INFO(VIDIOC_S_DV_PRESET, INFO_FL_PRIO), |
48ea0be0 HV |
275 | IOCTL_INFO(VIDIOC_G_DV_PRESET, 0), |
276 | IOCTL_INFO(VIDIOC_QUERY_DV_PRESET, 0), | |
4b902fec | 277 | IOCTL_INFO(VIDIOC_S_DV_TIMINGS, INFO_FL_PRIO), |
48ea0be0 HV |
278 | IOCTL_INFO(VIDIOC_G_DV_TIMINGS, 0), |
279 | IOCTL_INFO(VIDIOC_DQEVENT, 0), | |
280 | IOCTL_INFO(VIDIOC_SUBSCRIBE_EVENT, 0), | |
281 | IOCTL_INFO(VIDIOC_UNSUBSCRIBE_EVENT, 0), | |
4b902fec | 282 | IOCTL_INFO(VIDIOC_CREATE_BUFS, INFO_FL_PRIO), |
48ea0be0 | 283 | IOCTL_INFO(VIDIOC_PREPARE_BUF, 0), |
5d7758ee HV |
284 | IOCTL_INFO(VIDIOC_ENUM_DV_TIMINGS, 0), |
285 | IOCTL_INFO(VIDIOC_QUERY_DV_TIMINGS, 0), | |
286 | IOCTL_INFO(VIDIOC_DV_TIMINGS_CAP, 0), | |
35ea11ff HV |
287 | }; |
288 | #define V4L2_IOCTLS ARRAY_SIZE(v4l2_ioctls) | |
289 | ||
8ab75e3e HV |
290 | bool v4l2_is_known_ioctl(unsigned int cmd) |
291 | { | |
292 | if (_IOC_NR(cmd) >= V4L2_IOCTLS) | |
293 | return false; | |
294 | return v4l2_ioctls[_IOC_NR(cmd)].ioctl == cmd; | |
295 | } | |
296 | ||
35ea11ff HV |
297 | /* Common ioctl debug function. This function can be used by |
298 | external ioctl messages as well as internal V4L ioctl */ | |
299 | void v4l_printk_ioctl(unsigned int cmd) | |
300 | { | |
301 | char *dir, *type; | |
302 | ||
303 | switch (_IOC_TYPE(cmd)) { | |
304 | case 'd': | |
78a3b4db HV |
305 | type = "v4l2_int"; |
306 | break; | |
35ea11ff HV |
307 | case 'V': |
308 | if (_IOC_NR(cmd) >= V4L2_IOCTLS) { | |
309 | type = "v4l2"; | |
310 | break; | |
311 | } | |
8ab75e3e | 312 | printk("%s", v4l2_ioctls[_IOC_NR(cmd)].name); |
35ea11ff HV |
313 | return; |
314 | default: | |
315 | type = "unknown"; | |
316 | } | |
317 | ||
318 | switch (_IOC_DIR(cmd)) { | |
319 | case _IOC_NONE: dir = "--"; break; | |
320 | case _IOC_READ: dir = "r-"; break; | |
321 | case _IOC_WRITE: dir = "-w"; break; | |
322 | case _IOC_READ | _IOC_WRITE: dir = "rw"; break; | |
323 | default: dir = "*ERR*"; break; | |
324 | } | |
325 | printk("%s ioctl '%c', dir=%s, #%d (0x%08x)", | |
326 | type, _IOC_TYPE(cmd), dir, _IOC_NR(cmd), cmd); | |
327 | } | |
328 | EXPORT_SYMBOL(v4l_printk_ioctl); | |
329 | ||
35ea11ff HV |
330 | static void dbgbuf(unsigned int cmd, struct video_device *vfd, |
331 | struct v4l2_buffer *p) | |
332 | { | |
333 | struct v4l2_timecode *tc = &p->timecode; | |
d14e6d76 PO |
334 | struct v4l2_plane *plane; |
335 | int i; | |
35ea11ff HV |
336 | |
337 | dbgarg(cmd, "%02ld:%02d:%02d.%08ld index=%d, type=%s, " | |
d14e6d76 | 338 | "flags=0x%08d, field=%0d, sequence=%d, memory=%s\n", |
35ea11ff HV |
339 | p->timestamp.tv_sec / 3600, |
340 | (int)(p->timestamp.tv_sec / 60) % 60, | |
341 | (int)(p->timestamp.tv_sec % 60), | |
b045979d | 342 | (long)p->timestamp.tv_usec, |
35ea11ff HV |
343 | p->index, |
344 | prt_names(p->type, v4l2_type_names), | |
d14e6d76 PO |
345 | p->flags, p->field, p->sequence, |
346 | prt_names(p->memory, v4l2_memory_names)); | |
347 | ||
348 | if (V4L2_TYPE_IS_MULTIPLANAR(p->type) && p->m.planes) { | |
349 | for (i = 0; i < p->length; ++i) { | |
350 | plane = &p->m.planes[i]; | |
351 | dbgarg2("plane %d: bytesused=%d, data_offset=0x%08x " | |
352 | "offset/userptr=0x%08lx, length=%d\n", | |
353 | i, plane->bytesused, plane->data_offset, | |
354 | plane->m.userptr, plane->length); | |
355 | } | |
356 | } else { | |
357 | dbgarg2("bytesused=%d, offset/userptr=0x%08lx, length=%d\n", | |
358 | p->bytesused, p->m.userptr, p->length); | |
359 | } | |
360 | ||
35ea11ff HV |
361 | dbgarg2("timecode=%02d:%02d:%02d type=%d, " |
362 | "flags=0x%08d, frames=%d, userbits=0x%08x\n", | |
363 | tc->hours, tc->minutes, tc->seconds, | |
364 | tc->type, tc->flags, tc->frames, *(__u32 *)tc->userbits); | |
365 | } | |
366 | ||
367 | static inline void dbgrect(struct video_device *vfd, char *s, | |
368 | struct v4l2_rect *r) | |
369 | { | |
370 | dbgarg2("%sRect start at %dx%d, size=%dx%d\n", s, r->left, r->top, | |
371 | r->width, r->height); | |
372 | }; | |
373 | ||
5d7758ee HV |
374 | static void dbgtimings(struct video_device *vfd, |
375 | const struct v4l2_dv_timings *p) | |
376 | { | |
377 | switch (p->type) { | |
378 | case V4L2_DV_BT_656_1120: | |
379 | dbgarg2("bt-656/1120:interlaced=%d," | |
380 | " pixelclock=%lld," | |
381 | " width=%d, height=%d, polarities=%x," | |
382 | " hfrontporch=%d, hsync=%d," | |
383 | " hbackporch=%d, vfrontporch=%d," | |
384 | " vsync=%d, vbackporch=%d," | |
385 | " il_vfrontporch=%d, il_vsync=%d," | |
386 | " il_vbackporch=%d, standards=%x, flags=%x\n", | |
387 | p->bt.interlaced, p->bt.pixelclock, | |
388 | p->bt.width, p->bt.height, | |
389 | p->bt.polarities, p->bt.hfrontporch, | |
390 | p->bt.hsync, p->bt.hbackporch, | |
391 | p->bt.vfrontporch, p->bt.vsync, | |
392 | p->bt.vbackporch, p->bt.il_vfrontporch, | |
393 | p->bt.il_vsync, p->bt.il_vbackporch, | |
394 | p->bt.standards, p->bt.flags); | |
395 | break; | |
396 | default: | |
397 | dbgarg2("Unknown type %d!\n", p->type); | |
398 | break; | |
399 | } | |
400 | } | |
401 | ||
35ea11ff HV |
402 | static inline void v4l_print_pix_fmt(struct video_device *vfd, |
403 | struct v4l2_pix_format *fmt) | |
404 | { | |
405 | dbgarg2("width=%d, height=%d, format=%c%c%c%c, field=%s, " | |
406 | "bytesperline=%d sizeimage=%d, colorspace=%d\n", | |
407 | fmt->width, fmt->height, | |
408 | (fmt->pixelformat & 0xff), | |
409 | (fmt->pixelformat >> 8) & 0xff, | |
410 | (fmt->pixelformat >> 16) & 0xff, | |
411 | (fmt->pixelformat >> 24) & 0xff, | |
412 | prt_names(fmt->field, v4l2_field_names), | |
413 | fmt->bytesperline, fmt->sizeimage, fmt->colorspace); | |
414 | }; | |
415 | ||
d14e6d76 PO |
416 | static inline void v4l_print_pix_fmt_mplane(struct video_device *vfd, |
417 | struct v4l2_pix_format_mplane *fmt) | |
418 | { | |
419 | int i; | |
420 | ||
421 | dbgarg2("width=%d, height=%d, format=%c%c%c%c, field=%s, " | |
422 | "colorspace=%d, num_planes=%d\n", | |
423 | fmt->width, fmt->height, | |
424 | (fmt->pixelformat & 0xff), | |
425 | (fmt->pixelformat >> 8) & 0xff, | |
426 | (fmt->pixelformat >> 16) & 0xff, | |
427 | (fmt->pixelformat >> 24) & 0xff, | |
428 | prt_names(fmt->field, v4l2_field_names), | |
429 | fmt->colorspace, fmt->num_planes); | |
430 | ||
431 | for (i = 0; i < fmt->num_planes; ++i) | |
432 | dbgarg2("plane %d: bytesperline=%d sizeimage=%d\n", i, | |
433 | fmt->plane_fmt[i].bytesperline, | |
434 | fmt->plane_fmt[i].sizeimage); | |
435 | } | |
436 | ||
35ea11ff HV |
437 | static inline void v4l_print_ext_ctrls(unsigned int cmd, |
438 | struct video_device *vfd, struct v4l2_ext_controls *c, int show_vals) | |
439 | { | |
440 | __u32 i; | |
441 | ||
442 | if (!(vfd->debug & V4L2_DEBUG_IOCTL_ARG)) | |
443 | return; | |
444 | dbgarg(cmd, ""); | |
445 | printk(KERN_CONT "class=0x%x", c->ctrl_class); | |
446 | for (i = 0; i < c->count; i++) { | |
6b5a9492 | 447 | if (show_vals && !c->controls[i].size) |
35ea11ff HV |
448 | printk(KERN_CONT " id/val=0x%x/0x%x", |
449 | c->controls[i].id, c->controls[i].value); | |
450 | else | |
6b5a9492 HV |
451 | printk(KERN_CONT " id=0x%x,size=%u", |
452 | c->controls[i].id, c->controls[i].size); | |
35ea11ff HV |
453 | } |
454 | printk(KERN_CONT "\n"); | |
455 | }; | |
456 | ||
457 | static inline int check_ext_ctrls(struct v4l2_ext_controls *c, int allow_priv) | |
458 | { | |
459 | __u32 i; | |
460 | ||
461 | /* zero the reserved fields */ | |
462 | c->reserved[0] = c->reserved[1] = 0; | |
6b5a9492 | 463 | for (i = 0; i < c->count; i++) |
35ea11ff | 464 | c->controls[i].reserved2[0] = 0; |
6b5a9492 | 465 | |
35ea11ff HV |
466 | /* V4L2_CID_PRIVATE_BASE cannot be used as control class |
467 | when using extended controls. | |
468 | Only when passed in through VIDIOC_G_CTRL and VIDIOC_S_CTRL | |
469 | is it allowed for backwards compatibility. | |
470 | */ | |
471 | if (!allow_priv && c->ctrl_class == V4L2_CID_PRIVATE_BASE) | |
472 | return 0; | |
473 | /* Check that all controls are from the same control class. */ | |
474 | for (i = 0; i < c->count; i++) { | |
475 | if (V4L2_CTRL_ID2CLASS(c->controls[i].id) != c->ctrl_class) { | |
476 | c->error_idx = i; | |
477 | return 0; | |
478 | } | |
479 | } | |
480 | return 1; | |
481 | } | |
482 | ||
a399810c | 483 | static int check_fmt(const struct v4l2_ioctl_ops *ops, enum v4l2_buf_type type) |
35ea11ff | 484 | { |
a399810c HV |
485 | if (ops == NULL) |
486 | return -EINVAL; | |
487 | ||
35ea11ff HV |
488 | switch (type) { |
489 | case V4L2_BUF_TYPE_VIDEO_CAPTURE: | |
d14e6d76 PO |
490 | if (ops->vidioc_g_fmt_vid_cap || |
491 | ops->vidioc_g_fmt_vid_cap_mplane) | |
492 | return 0; | |
493 | break; | |
494 | case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE: | |
495 | if (ops->vidioc_g_fmt_vid_cap_mplane) | |
35ea11ff HV |
496 | return 0; |
497 | break; | |
498 | case V4L2_BUF_TYPE_VIDEO_OVERLAY: | |
1175d613 | 499 | if (ops->vidioc_g_fmt_vid_overlay) |
35ea11ff HV |
500 | return 0; |
501 | break; | |
502 | case V4L2_BUF_TYPE_VIDEO_OUTPUT: | |
d14e6d76 PO |
503 | if (ops->vidioc_g_fmt_vid_out || |
504 | ops->vidioc_g_fmt_vid_out_mplane) | |
505 | return 0; | |
506 | break; | |
507 | case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE: | |
508 | if (ops->vidioc_g_fmt_vid_out_mplane) | |
35ea11ff HV |
509 | return 0; |
510 | break; | |
511 | case V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY: | |
1175d613 | 512 | if (ops->vidioc_g_fmt_vid_out_overlay) |
35ea11ff HV |
513 | return 0; |
514 | break; | |
515 | case V4L2_BUF_TYPE_VBI_CAPTURE: | |
1175d613 | 516 | if (ops->vidioc_g_fmt_vbi_cap) |
35ea11ff HV |
517 | return 0; |
518 | break; | |
519 | case V4L2_BUF_TYPE_VBI_OUTPUT: | |
1175d613 | 520 | if (ops->vidioc_g_fmt_vbi_out) |
35ea11ff HV |
521 | return 0; |
522 | break; | |
523 | case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE: | |
1175d613 | 524 | if (ops->vidioc_g_fmt_sliced_vbi_cap) |
35ea11ff HV |
525 | return 0; |
526 | break; | |
527 | case V4L2_BUF_TYPE_SLICED_VBI_OUTPUT: | |
1175d613 | 528 | if (ops->vidioc_g_fmt_sliced_vbi_out) |
35ea11ff HV |
529 | return 0; |
530 | break; | |
531 | case V4L2_BUF_TYPE_PRIVATE: | |
1175d613 | 532 | if (ops->vidioc_g_fmt_type_private) |
35ea11ff HV |
533 | return 0; |
534 | break; | |
535 | } | |
536 | return -EINVAL; | |
537 | } | |
538 | ||
069b7479 | 539 | static long __video_do_ioctl(struct file *file, |
35ea11ff HV |
540 | unsigned int cmd, void *arg) |
541 | { | |
542 | struct video_device *vfd = video_devdata(file); | |
a399810c | 543 | const struct v4l2_ioctl_ops *ops = vfd->ioctl_ops; |
d5fbf32f | 544 | void *fh = file->private_data; |
99cd47bc | 545 | struct v4l2_fh *vfh = NULL; |
b1a873a3 | 546 | int use_fh_prio = 0; |
9190d191 | 547 | long ret = -ENOTTY; |
35ea11ff | 548 | |
6a717883 HV |
549 | if (ops == NULL) { |
550 | printk(KERN_WARNING "videodev: \"%s\" has no ioctl_ops.\n", | |
551 | vfd->name); | |
9190d191 | 552 | return ret; |
6a717883 HV |
553 | } |
554 | ||
b1a873a3 | 555 | if (test_bit(V4L2_FL_USES_V4L2_FH, &vfd->flags)) { |
99cd47bc | 556 | vfh = file->private_data; |
b1a873a3 HV |
557 | use_fh_prio = test_bit(V4L2_FL_USE_FH_PRIO, &vfd->flags); |
558 | } | |
99cd47bc | 559 | |
48ea0be0 HV |
560 | if (v4l2_is_known_ioctl(cmd)) { |
561 | struct v4l2_ioctl_info *info = &v4l2_ioctls[_IOC_NR(cmd)]; | |
562 | ||
563 | if (!test_bit(_IOC_NR(cmd), vfd->valid_ioctls) && | |
564 | !((info->flags & INFO_FL_CTRL) && vfh && vfh->ctrl_handler)) | |
565 | return -ENOTTY; | |
4b902fec HV |
566 | |
567 | if (use_fh_prio && (info->flags & INFO_FL_PRIO)) { | |
568 | ret = v4l2_prio_check(vfd->prio, vfh->prio); | |
569 | if (ret) | |
570 | return ret; | |
571 | } | |
48ea0be0 HV |
572 | } |
573 | ||
574 | if ((vfd->debug & V4L2_DEBUG_IOCTL) && | |
575 | !(vfd->debug & V4L2_DEBUG_IOCTL_ARG)) { | |
576 | v4l_print_ioctl(vfd->name, cmd); | |
577 | printk(KERN_CONT "\n"); | |
578 | } | |
99cd47bc | 579 | |
6a717883 | 580 | switch (cmd) { |
a399810c | 581 | |
35ea11ff HV |
582 | /* --- capabilities ------------------------------------------ */ |
583 | case VIDIOC_QUERYCAP: | |
584 | { | |
585 | struct v4l2_capability *cap = (struct v4l2_capability *)arg; | |
35ea11ff | 586 | |
ae6db515 | 587 | cap->version = LINUX_VERSION_CODE; |
a399810c | 588 | ret = ops->vidioc_querycap(file, fh, cap); |
35ea11ff HV |
589 | if (!ret) |
590 | dbgarg(cmd, "driver=%s, card=%s, bus=%s, " | |
591 | "version=0x%08x, " | |
583aa3a9 HV |
592 | "capabilities=0x%08x, " |
593 | "device_caps=0x%08x\n", | |
35ea11ff HV |
594 | cap->driver, cap->card, cap->bus_info, |
595 | cap->version, | |
583aa3a9 HV |
596 | cap->capabilities, |
597 | cap->device_caps); | |
35ea11ff HV |
598 | break; |
599 | } | |
600 | ||
601 | /* --- priority ------------------------------------------ */ | |
602 | case VIDIOC_G_PRIORITY: | |
603 | { | |
604 | enum v4l2_priority *p = arg; | |
605 | ||
99cd47bc HV |
606 | if (ops->vidioc_g_priority) { |
607 | ret = ops->vidioc_g_priority(file, fh, p); | |
b1a873a3 | 608 | } else if (use_fh_prio) { |
99cd47bc HV |
609 | *p = v4l2_prio_max(&vfd->v4l2_dev->prio); |
610 | ret = 0; | |
611 | } | |
35ea11ff HV |
612 | if (!ret) |
613 | dbgarg(cmd, "priority is %d\n", *p); | |
614 | break; | |
615 | } | |
616 | case VIDIOC_S_PRIORITY: | |
617 | { | |
618 | enum v4l2_priority *p = arg; | |
619 | ||
35ea11ff | 620 | dbgarg(cmd, "setting priority to %d\n", *p); |
99cd47bc HV |
621 | if (ops->vidioc_s_priority) |
622 | ret = ops->vidioc_s_priority(file, fh, *p); | |
623 | else | |
4b902fec | 624 | ret = v4l2_prio_change(&vfd->v4l2_dev->prio, |
93d5a30b | 625 | &vfh->prio, *p); |
35ea11ff HV |
626 | break; |
627 | } | |
628 | ||
629 | /* --- capture ioctls ---------------------------------------- */ | |
630 | case VIDIOC_ENUM_FMT: | |
631 | { | |
632 | struct v4l2_fmtdesc *f = arg; | |
35ea11ff | 633 | |
48ea0be0 | 634 | ret = -EINVAL; |
19c96e4b | 635 | switch (f->type) { |
35ea11ff | 636 | case V4L2_BUF_TYPE_VIDEO_CAPTURE: |
a5f2db53 | 637 | if (likely(ops->vidioc_enum_fmt_vid_cap)) |
a399810c | 638 | ret = ops->vidioc_enum_fmt_vid_cap(file, fh, f); |
35ea11ff | 639 | break; |
d14e6d76 | 640 | case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE: |
a5f2db53 | 641 | if (likely(ops->vidioc_enum_fmt_vid_cap_mplane)) |
d14e6d76 PO |
642 | ret = ops->vidioc_enum_fmt_vid_cap_mplane(file, |
643 | fh, f); | |
644 | break; | |
35ea11ff | 645 | case V4L2_BUF_TYPE_VIDEO_OVERLAY: |
a5f2db53 | 646 | if (likely(ops->vidioc_enum_fmt_vid_overlay)) |
a399810c | 647 | ret = ops->vidioc_enum_fmt_vid_overlay(file, |
35ea11ff HV |
648 | fh, f); |
649 | break; | |
35ea11ff | 650 | case V4L2_BUF_TYPE_VIDEO_OUTPUT: |
a5f2db53 | 651 | if (likely(ops->vidioc_enum_fmt_vid_out)) |
a399810c | 652 | ret = ops->vidioc_enum_fmt_vid_out(file, fh, f); |
35ea11ff | 653 | break; |
d14e6d76 | 654 | case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE: |
a5f2db53 | 655 | if (likely(ops->vidioc_enum_fmt_vid_out_mplane)) |
d14e6d76 PO |
656 | ret = ops->vidioc_enum_fmt_vid_out_mplane(file, |
657 | fh, f); | |
658 | break; | |
35ea11ff | 659 | case V4L2_BUF_TYPE_PRIVATE: |
a5f2db53 | 660 | if (likely(ops->vidioc_enum_fmt_type_private)) |
a399810c | 661 | ret = ops->vidioc_enum_fmt_type_private(file, |
35ea11ff HV |
662 | fh, f); |
663 | break; | |
664 | default: | |
665 | break; | |
666 | } | |
48ea0be0 | 667 | if (likely(!ret)) |
35ea11ff HV |
668 | dbgarg(cmd, "index=%d, type=%d, flags=%d, " |
669 | "pixelformat=%c%c%c%c, description='%s'\n", | |
670 | f->index, f->type, f->flags, | |
671 | (f->pixelformat & 0xff), | |
672 | (f->pixelformat >> 8) & 0xff, | |
673 | (f->pixelformat >> 16) & 0xff, | |
674 | (f->pixelformat >> 24) & 0xff, | |
675 | f->description); | |
676 | break; | |
677 | } | |
678 | case VIDIOC_G_FMT: | |
679 | { | |
680 | struct v4l2_format *f = (struct v4l2_format *)arg; | |
681 | ||
35ea11ff HV |
682 | /* FIXME: Should be one dump per type */ |
683 | dbgarg(cmd, "type=%s\n", prt_names(f->type, v4l2_type_names)); | |
684 | ||
48ea0be0 | 685 | ret = -EINVAL; |
35ea11ff HV |
686 | switch (f->type) { |
687 | case V4L2_BUF_TYPE_VIDEO_CAPTURE: | |
1d0c86ca | 688 | if (ops->vidioc_g_fmt_vid_cap) |
a399810c | 689 | ret = ops->vidioc_g_fmt_vid_cap(file, fh, f); |
35ea11ff HV |
690 | if (!ret) |
691 | v4l_print_pix_fmt(vfd, &f->fmt.pix); | |
692 | break; | |
d14e6d76 | 693 | case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE: |
1d0c86ca | 694 | if (ops->vidioc_g_fmt_vid_cap_mplane) |
d14e6d76 PO |
695 | ret = ops->vidioc_g_fmt_vid_cap_mplane(file, |
696 | fh, f); | |
d14e6d76 PO |
697 | if (!ret) |
698 | v4l_print_pix_fmt_mplane(vfd, &f->fmt.pix_mp); | |
699 | break; | |
35ea11ff | 700 | case V4L2_BUF_TYPE_VIDEO_OVERLAY: |
a5f2db53 | 701 | if (likely(ops->vidioc_g_fmt_vid_overlay)) |
a399810c | 702 | ret = ops->vidioc_g_fmt_vid_overlay(file, |
35ea11ff HV |
703 | fh, f); |
704 | break; | |
705 | case V4L2_BUF_TYPE_VIDEO_OUTPUT: | |
1d0c86ca | 706 | if (ops->vidioc_g_fmt_vid_out) |
a399810c | 707 | ret = ops->vidioc_g_fmt_vid_out(file, fh, f); |
35ea11ff HV |
708 | if (!ret) |
709 | v4l_print_pix_fmt(vfd, &f->fmt.pix); | |
710 | break; | |
d14e6d76 | 711 | case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE: |
1d0c86ca | 712 | if (ops->vidioc_g_fmt_vid_out_mplane) |
d14e6d76 PO |
713 | ret = ops->vidioc_g_fmt_vid_out_mplane(file, |
714 | fh, f); | |
d14e6d76 PO |
715 | if (!ret) |
716 | v4l_print_pix_fmt_mplane(vfd, &f->fmt.pix_mp); | |
717 | break; | |
35ea11ff | 718 | case V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY: |
a5f2db53 | 719 | if (likely(ops->vidioc_g_fmt_vid_out_overlay)) |
a399810c | 720 | ret = ops->vidioc_g_fmt_vid_out_overlay(file, |
35ea11ff HV |
721 | fh, f); |
722 | break; | |
723 | case V4L2_BUF_TYPE_VBI_CAPTURE: | |
a5f2db53 | 724 | if (likely(ops->vidioc_g_fmt_vbi_cap)) |
a399810c | 725 | ret = ops->vidioc_g_fmt_vbi_cap(file, fh, f); |
35ea11ff HV |
726 | break; |
727 | case V4L2_BUF_TYPE_VBI_OUTPUT: | |
a5f2db53 | 728 | if (likely(ops->vidioc_g_fmt_vbi_out)) |
a399810c | 729 | ret = ops->vidioc_g_fmt_vbi_out(file, fh, f); |
35ea11ff HV |
730 | break; |
731 | case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE: | |
a5f2db53 | 732 | if (likely(ops->vidioc_g_fmt_sliced_vbi_cap)) |
a399810c | 733 | ret = ops->vidioc_g_fmt_sliced_vbi_cap(file, |
35ea11ff HV |
734 | fh, f); |
735 | break; | |
736 | case V4L2_BUF_TYPE_SLICED_VBI_OUTPUT: | |
a5f2db53 | 737 | if (likely(ops->vidioc_g_fmt_sliced_vbi_out)) |
a399810c | 738 | ret = ops->vidioc_g_fmt_sliced_vbi_out(file, |
35ea11ff HV |
739 | fh, f); |
740 | break; | |
741 | case V4L2_BUF_TYPE_PRIVATE: | |
a5f2db53 | 742 | if (likely(ops->vidioc_g_fmt_type_private)) |
a399810c | 743 | ret = ops->vidioc_g_fmt_type_private(file, |
35ea11ff HV |
744 | fh, f); |
745 | break; | |
746 | } | |
35ea11ff HV |
747 | break; |
748 | } | |
749 | case VIDIOC_S_FMT: | |
750 | { | |
751 | struct v4l2_format *f = (struct v4l2_format *)arg; | |
752 | ||
93d5a30b HV |
753 | ret = -EINVAL; |
754 | ||
35ea11ff HV |
755 | /* FIXME: Should be one dump per type */ |
756 | dbgarg(cmd, "type=%s\n", prt_names(f->type, v4l2_type_names)); | |
757 | ||
758 | switch (f->type) { | |
759 | case V4L2_BUF_TYPE_VIDEO_CAPTURE: | |
7ecc0cf9 | 760 | CLEAR_AFTER_FIELD(f, fmt.pix); |
35ea11ff | 761 | v4l_print_pix_fmt(vfd, &f->fmt.pix); |
1d0c86ca | 762 | if (ops->vidioc_s_fmt_vid_cap) |
a399810c | 763 | ret = ops->vidioc_s_fmt_vid_cap(file, fh, f); |
d14e6d76 PO |
764 | break; |
765 | case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE: | |
766 | CLEAR_AFTER_FIELD(f, fmt.pix_mp); | |
767 | v4l_print_pix_fmt_mplane(vfd, &f->fmt.pix_mp); | |
1d0c86ca | 768 | if (ops->vidioc_s_fmt_vid_cap_mplane) |
d14e6d76 PO |
769 | ret = ops->vidioc_s_fmt_vid_cap_mplane(file, |
770 | fh, f); | |
35ea11ff HV |
771 | break; |
772 | case V4L2_BUF_TYPE_VIDEO_OVERLAY: | |
7ecc0cf9 | 773 | CLEAR_AFTER_FIELD(f, fmt.win); |
a399810c HV |
774 | if (ops->vidioc_s_fmt_vid_overlay) |
775 | ret = ops->vidioc_s_fmt_vid_overlay(file, | |
35ea11ff HV |
776 | fh, f); |
777 | break; | |
778 | case V4L2_BUF_TYPE_VIDEO_OUTPUT: | |
7ecc0cf9 | 779 | CLEAR_AFTER_FIELD(f, fmt.pix); |
35ea11ff | 780 | v4l_print_pix_fmt(vfd, &f->fmt.pix); |
1d0c86ca | 781 | if (ops->vidioc_s_fmt_vid_out) |
a399810c | 782 | ret = ops->vidioc_s_fmt_vid_out(file, fh, f); |
d14e6d76 PO |
783 | break; |
784 | case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE: | |
785 | CLEAR_AFTER_FIELD(f, fmt.pix_mp); | |
786 | v4l_print_pix_fmt_mplane(vfd, &f->fmt.pix_mp); | |
1d0c86ca | 787 | if (ops->vidioc_s_fmt_vid_out_mplane) |
d14e6d76 PO |
788 | ret = ops->vidioc_s_fmt_vid_out_mplane(file, |
789 | fh, f); | |
35ea11ff HV |
790 | break; |
791 | case V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY: | |
7ecc0cf9 | 792 | CLEAR_AFTER_FIELD(f, fmt.win); |
a399810c HV |
793 | if (ops->vidioc_s_fmt_vid_out_overlay) |
794 | ret = ops->vidioc_s_fmt_vid_out_overlay(file, | |
35ea11ff HV |
795 | fh, f); |
796 | break; | |
797 | case V4L2_BUF_TYPE_VBI_CAPTURE: | |
7ecc0cf9 | 798 | CLEAR_AFTER_FIELD(f, fmt.vbi); |
a5f2db53 | 799 | if (likely(ops->vidioc_s_fmt_vbi_cap)) |
a399810c | 800 | ret = ops->vidioc_s_fmt_vbi_cap(file, fh, f); |
35ea11ff HV |
801 | break; |
802 | case V4L2_BUF_TYPE_VBI_OUTPUT: | |
7ecc0cf9 | 803 | CLEAR_AFTER_FIELD(f, fmt.vbi); |
a5f2db53 | 804 | if (likely(ops->vidioc_s_fmt_vbi_out)) |
a399810c | 805 | ret = ops->vidioc_s_fmt_vbi_out(file, fh, f); |
35ea11ff HV |
806 | break; |
807 | case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE: | |
7ecc0cf9 | 808 | CLEAR_AFTER_FIELD(f, fmt.sliced); |
a5f2db53 | 809 | if (likely(ops->vidioc_s_fmt_sliced_vbi_cap)) |
a399810c | 810 | ret = ops->vidioc_s_fmt_sliced_vbi_cap(file, |
35ea11ff HV |
811 | fh, f); |
812 | break; | |
813 | case V4L2_BUF_TYPE_SLICED_VBI_OUTPUT: | |
7ecc0cf9 | 814 | CLEAR_AFTER_FIELD(f, fmt.sliced); |
a5f2db53 | 815 | if (likely(ops->vidioc_s_fmt_sliced_vbi_out)) |
a399810c | 816 | ret = ops->vidioc_s_fmt_sliced_vbi_out(file, |
35ea11ff | 817 | fh, f); |
a5f2db53 | 818 | |
35ea11ff HV |
819 | break; |
820 | case V4L2_BUF_TYPE_PRIVATE: | |
7ecc0cf9 | 821 | /* CLEAR_AFTER_FIELD(f, fmt.raw_data); <- does nothing */ |
a5f2db53 | 822 | if (likely(ops->vidioc_s_fmt_type_private)) |
a399810c | 823 | ret = ops->vidioc_s_fmt_type_private(file, |
35ea11ff HV |
824 | fh, f); |
825 | break; | |
826 | } | |
827 | break; | |
828 | } | |
829 | case VIDIOC_TRY_FMT: | |
830 | { | |
831 | struct v4l2_format *f = (struct v4l2_format *)arg; | |
832 | ||
833 | /* FIXME: Should be one dump per type */ | |
834 | dbgarg(cmd, "type=%s\n", prt_names(f->type, | |
835 | v4l2_type_names)); | |
48ea0be0 | 836 | ret = -EINVAL; |
35ea11ff HV |
837 | switch (f->type) { |
838 | case V4L2_BUF_TYPE_VIDEO_CAPTURE: | |
7ecc0cf9 | 839 | CLEAR_AFTER_FIELD(f, fmt.pix); |
1d0c86ca | 840 | if (ops->vidioc_try_fmt_vid_cap) |
a399810c | 841 | ret = ops->vidioc_try_fmt_vid_cap(file, fh, f); |
35ea11ff HV |
842 | if (!ret) |
843 | v4l_print_pix_fmt(vfd, &f->fmt.pix); | |
844 | break; | |
d14e6d76 PO |
845 | case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE: |
846 | CLEAR_AFTER_FIELD(f, fmt.pix_mp); | |
1d0c86ca | 847 | if (ops->vidioc_try_fmt_vid_cap_mplane) |
d14e6d76 PO |
848 | ret = ops->vidioc_try_fmt_vid_cap_mplane(file, |
849 | fh, f); | |
d14e6d76 PO |
850 | if (!ret) |
851 | v4l_print_pix_fmt_mplane(vfd, &f->fmt.pix_mp); | |
852 | break; | |
35ea11ff | 853 | case V4L2_BUF_TYPE_VIDEO_OVERLAY: |
7ecc0cf9 | 854 | CLEAR_AFTER_FIELD(f, fmt.win); |
a5f2db53 | 855 | if (likely(ops->vidioc_try_fmt_vid_overlay)) |
a399810c | 856 | ret = ops->vidioc_try_fmt_vid_overlay(file, |
35ea11ff HV |
857 | fh, f); |
858 | break; | |
859 | case V4L2_BUF_TYPE_VIDEO_OUTPUT: | |
7ecc0cf9 | 860 | CLEAR_AFTER_FIELD(f, fmt.pix); |
1d0c86ca | 861 | if (ops->vidioc_try_fmt_vid_out) |
a399810c | 862 | ret = ops->vidioc_try_fmt_vid_out(file, fh, f); |
35ea11ff HV |
863 | if (!ret) |
864 | v4l_print_pix_fmt(vfd, &f->fmt.pix); | |
865 | break; | |
d14e6d76 PO |
866 | case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE: |
867 | CLEAR_AFTER_FIELD(f, fmt.pix_mp); | |
1d0c86ca | 868 | if (ops->vidioc_try_fmt_vid_out_mplane) |
d14e6d76 PO |
869 | ret = ops->vidioc_try_fmt_vid_out_mplane(file, |
870 | fh, f); | |
d14e6d76 PO |
871 | if (!ret) |
872 | v4l_print_pix_fmt_mplane(vfd, &f->fmt.pix_mp); | |
873 | break; | |
35ea11ff | 874 | case V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY: |
7ecc0cf9 | 875 | CLEAR_AFTER_FIELD(f, fmt.win); |
a5f2db53 | 876 | if (likely(ops->vidioc_try_fmt_vid_out_overlay)) |
a399810c | 877 | ret = ops->vidioc_try_fmt_vid_out_overlay(file, |
35ea11ff HV |
878 | fh, f); |
879 | break; | |
880 | case V4L2_BUF_TYPE_VBI_CAPTURE: | |
7ecc0cf9 | 881 | CLEAR_AFTER_FIELD(f, fmt.vbi); |
a5f2db53 | 882 | if (likely(ops->vidioc_try_fmt_vbi_cap)) |
a399810c | 883 | ret = ops->vidioc_try_fmt_vbi_cap(file, fh, f); |
35ea11ff HV |
884 | break; |
885 | case V4L2_BUF_TYPE_VBI_OUTPUT: | |
7ecc0cf9 | 886 | CLEAR_AFTER_FIELD(f, fmt.vbi); |
a5f2db53 | 887 | if (likely(ops->vidioc_try_fmt_vbi_out)) |
a399810c | 888 | ret = ops->vidioc_try_fmt_vbi_out(file, fh, f); |
35ea11ff HV |
889 | break; |
890 | case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE: | |
7ecc0cf9 | 891 | CLEAR_AFTER_FIELD(f, fmt.sliced); |
a5f2db53 | 892 | if (likely(ops->vidioc_try_fmt_sliced_vbi_cap)) |
a399810c | 893 | ret = ops->vidioc_try_fmt_sliced_vbi_cap(file, |
35ea11ff HV |
894 | fh, f); |
895 | break; | |
896 | case V4L2_BUF_TYPE_SLICED_VBI_OUTPUT: | |
7ecc0cf9 | 897 | CLEAR_AFTER_FIELD(f, fmt.sliced); |
a5f2db53 | 898 | if (likely(ops->vidioc_try_fmt_sliced_vbi_out)) |
a399810c | 899 | ret = ops->vidioc_try_fmt_sliced_vbi_out(file, |
35ea11ff HV |
900 | fh, f); |
901 | break; | |
902 | case V4L2_BUF_TYPE_PRIVATE: | |
7ecc0cf9 | 903 | /* CLEAR_AFTER_FIELD(f, fmt.raw_data); <- does nothing */ |
a5f2db53 | 904 | if (likely(ops->vidioc_try_fmt_type_private)) |
a399810c | 905 | ret = ops->vidioc_try_fmt_type_private(file, |
35ea11ff HV |
906 | fh, f); |
907 | break; | |
908 | } | |
35ea11ff HV |
909 | break; |
910 | } | |
911 | /* FIXME: Those buf reqs could be handled here, | |
912 | with some changes on videobuf to allow its header to be included at | |
913 | videodev2.h or being merged at videodev2. | |
914 | */ | |
915 | case VIDIOC_REQBUFS: | |
916 | { | |
917 | struct v4l2_requestbuffers *p = arg; | |
918 | ||
a399810c | 919 | ret = check_fmt(ops, p->type); |
35ea11ff HV |
920 | if (ret) |
921 | break; | |
922 | ||
7ecc0cf9 TP |
923 | if (p->type < V4L2_BUF_TYPE_PRIVATE) |
924 | CLEAR_AFTER_FIELD(p, memory); | |
925 | ||
a399810c | 926 | ret = ops->vidioc_reqbufs(file, fh, p); |
35ea11ff HV |
927 | dbgarg(cmd, "count=%d, type=%s, memory=%s\n", |
928 | p->count, | |
929 | prt_names(p->type, v4l2_type_names), | |
930 | prt_names(p->memory, v4l2_memory_names)); | |
931 | break; | |
932 | } | |
933 | case VIDIOC_QUERYBUF: | |
934 | { | |
935 | struct v4l2_buffer *p = arg; | |
936 | ||
a399810c | 937 | ret = check_fmt(ops, p->type); |
35ea11ff HV |
938 | if (ret) |
939 | break; | |
940 | ||
a399810c | 941 | ret = ops->vidioc_querybuf(file, fh, p); |
35ea11ff HV |
942 | if (!ret) |
943 | dbgbuf(cmd, vfd, p); | |
944 | break; | |
945 | } | |
946 | case VIDIOC_QBUF: | |
947 | { | |
948 | struct v4l2_buffer *p = arg; | |
949 | ||
a399810c | 950 | ret = check_fmt(ops, p->type); |
35ea11ff HV |
951 | if (ret) |
952 | break; | |
953 | ||
a399810c | 954 | ret = ops->vidioc_qbuf(file, fh, p); |
35ea11ff HV |
955 | if (!ret) |
956 | dbgbuf(cmd, vfd, p); | |
957 | break; | |
958 | } | |
959 | case VIDIOC_DQBUF: | |
960 | { | |
961 | struct v4l2_buffer *p = arg; | |
962 | ||
a399810c | 963 | ret = check_fmt(ops, p->type); |
35ea11ff HV |
964 | if (ret) |
965 | break; | |
966 | ||
a399810c | 967 | ret = ops->vidioc_dqbuf(file, fh, p); |
35ea11ff HV |
968 | if (!ret) |
969 | dbgbuf(cmd, vfd, p); | |
970 | break; | |
971 | } | |
972 | case VIDIOC_OVERLAY: | |
973 | { | |
974 | int *i = arg; | |
975 | ||
35ea11ff | 976 | dbgarg(cmd, "value=%d\n", *i); |
a399810c | 977 | ret = ops->vidioc_overlay(file, fh, *i); |
35ea11ff HV |
978 | break; |
979 | } | |
980 | case VIDIOC_G_FBUF: | |
981 | { | |
982 | struct v4l2_framebuffer *p = arg; | |
983 | ||
a399810c | 984 | ret = ops->vidioc_g_fbuf(file, fh, arg); |
35ea11ff HV |
985 | if (!ret) { |
986 | dbgarg(cmd, "capability=0x%x, flags=%d, base=0x%08lx\n", | |
987 | p->capability, p->flags, | |
988 | (unsigned long)p->base); | |
989 | v4l_print_pix_fmt(vfd, &p->fmt); | |
990 | } | |
991 | break; | |
992 | } | |
993 | case VIDIOC_S_FBUF: | |
994 | { | |
995 | struct v4l2_framebuffer *p = arg; | |
996 | ||
35ea11ff HV |
997 | dbgarg(cmd, "capability=0x%x, flags=%d, base=0x%08lx\n", |
998 | p->capability, p->flags, (unsigned long)p->base); | |
999 | v4l_print_pix_fmt(vfd, &p->fmt); | |
a399810c | 1000 | ret = ops->vidioc_s_fbuf(file, fh, arg); |
35ea11ff HV |
1001 | break; |
1002 | } | |
1003 | case VIDIOC_STREAMON: | |
1004 | { | |
1005 | enum v4l2_buf_type i = *(int *)arg; | |
1006 | ||
35ea11ff | 1007 | dbgarg(cmd, "type=%s\n", prt_names(i, v4l2_type_names)); |
a399810c | 1008 | ret = ops->vidioc_streamon(file, fh, i); |
35ea11ff HV |
1009 | break; |
1010 | } | |
1011 | case VIDIOC_STREAMOFF: | |
1012 | { | |
1013 | enum v4l2_buf_type i = *(int *)arg; | |
1014 | ||
35ea11ff | 1015 | dbgarg(cmd, "type=%s\n", prt_names(i, v4l2_type_names)); |
a399810c | 1016 | ret = ops->vidioc_streamoff(file, fh, i); |
35ea11ff HV |
1017 | break; |
1018 | } | |
1019 | /* ---------- tv norms ---------- */ | |
1020 | case VIDIOC_ENUMSTD: | |
1021 | { | |
1022 | struct v4l2_standard *p = arg; | |
1023 | v4l2_std_id id = vfd->tvnorms, curr_id = 0; | |
1024 | unsigned int index = p->index, i, j = 0; | |
1025 | const char *descr = ""; | |
1026 | ||
93d5a30b HV |
1027 | if (id == 0) |
1028 | break; | |
1029 | ret = -EINVAL; | |
1030 | ||
35ea11ff HV |
1031 | /* Return norm array in a canonical way */ |
1032 | for (i = 0; i <= index && id; i++) { | |
1033 | /* last std value in the standards array is 0, so this | |
1034 | while always ends there since (id & 0) == 0. */ | |
1035 | while ((id & standards[j].std) != standards[j].std) | |
1036 | j++; | |
1037 | curr_id = standards[j].std; | |
1038 | descr = standards[j].descr; | |
1039 | j++; | |
1040 | if (curr_id == 0) | |
1041 | break; | |
1042 | if (curr_id != V4L2_STD_PAL && | |
1043 | curr_id != V4L2_STD_SECAM && | |
1044 | curr_id != V4L2_STD_NTSC) | |
1045 | id &= ~curr_id; | |
1046 | } | |
1047 | if (i <= index) | |
3f5e1824 | 1048 | break; |
35ea11ff HV |
1049 | |
1050 | v4l2_video_std_construct(p, curr_id, descr); | |
35ea11ff HV |
1051 | |
1052 | dbgarg(cmd, "index=%d, id=0x%Lx, name=%s, fps=%d/%d, " | |
1053 | "framelines=%d\n", p->index, | |
1054 | (unsigned long long)p->id, p->name, | |
1055 | p->frameperiod.numerator, | |
1056 | p->frameperiod.denominator, | |
1057 | p->framelines); | |
1058 | ||
1059 | ret = 0; | |
1060 | break; | |
1061 | } | |
1062 | case VIDIOC_G_STD: | |
1063 | { | |
1064 | v4l2_std_id *id = arg; | |
1065 | ||
35ea11ff | 1066 | /* Calls the specific handler */ |
a399810c HV |
1067 | if (ops->vidioc_g_std) |
1068 | ret = ops->vidioc_g_std(file, fh, id); | |
a5f2db53 MCC |
1069 | else if (vfd->current_norm) { |
1070 | ret = 0; | |
35ea11ff | 1071 | *id = vfd->current_norm; |
a5f2db53 | 1072 | } |
35ea11ff | 1073 | |
a5f2db53 | 1074 | if (likely(!ret)) |
35ea11ff HV |
1075 | dbgarg(cmd, "std=0x%08Lx\n", (long long unsigned)*id); |
1076 | break; | |
1077 | } | |
1078 | case VIDIOC_S_STD: | |
1079 | { | |
1080 | v4l2_std_id *id = arg, norm; | |
1081 | ||
1082 | dbgarg(cmd, "std=%08Lx\n", (long long unsigned)*id); | |
1083 | ||
93d5a30b | 1084 | ret = -EINVAL; |
35ea11ff HV |
1085 | norm = (*id) & vfd->tvnorms; |
1086 | if (vfd->tvnorms && !norm) /* Check if std is supported */ | |
1087 | break; | |
1088 | ||
1089 | /* Calls the specific handler */ | |
93d5a30b | 1090 | ret = ops->vidioc_s_std(file, fh, &norm); |
35ea11ff HV |
1091 | |
1092 | /* Updates standard information */ | |
1093 | if (ret >= 0) | |
1094 | vfd->current_norm = norm; | |
1095 | break; | |
1096 | } | |
1097 | case VIDIOC_QUERYSTD: | |
1098 | { | |
1099 | v4l2_std_id *p = arg; | |
1100 | ||
8715e6cb MCC |
1101 | /* |
1102 | * If nothing detected, it should return all supported | |
1103 | * Drivers just need to mask the std argument, in order | |
1104 | * to remove the standards that don't apply from the mask. | |
1105 | * This means that tuners, audio and video decoders can join | |
1106 | * their efforts to improve the standards detection | |
1107 | */ | |
1108 | *p = vfd->tvnorms; | |
a399810c | 1109 | ret = ops->vidioc_querystd(file, fh, arg); |
35ea11ff HV |
1110 | if (!ret) |
1111 | dbgarg(cmd, "detected std=%08Lx\n", | |
1112 | (unsigned long long)*p); | |
1113 | break; | |
1114 | } | |
1115 | /* ------ input switching ---------- */ | |
1116 | /* FIXME: Inputs can be handled inside videodev2 */ | |
1117 | case VIDIOC_ENUMINPUT: | |
1118 | { | |
1119 | struct v4l2_input *p = arg; | |
35ea11ff | 1120 | |
b6456c0c MK |
1121 | /* |
1122 | * We set the flags for CAP_PRESETS, CAP_CUSTOM_TIMINGS & | |
1123 | * CAP_STD here based on ioctl handler provided by the | |
1124 | * driver. If the driver doesn't support these | |
1125 | * for a specific input, it must override these flags. | |
1126 | */ | |
1127 | if (ops->vidioc_s_std) | |
1128 | p->capabilities |= V4L2_IN_CAP_STD; | |
1129 | if (ops->vidioc_s_dv_preset) | |
1130 | p->capabilities |= V4L2_IN_CAP_PRESETS; | |
1131 | if (ops->vidioc_s_dv_timings) | |
1132 | p->capabilities |= V4L2_IN_CAP_CUSTOM_TIMINGS; | |
1133 | ||
a399810c | 1134 | ret = ops->vidioc_enum_input(file, fh, p); |
35ea11ff HV |
1135 | if (!ret) |
1136 | dbgarg(cmd, "index=%d, name=%s, type=%d, " | |
1137 | "audioset=%d, " | |
1138 | "tuner=%d, std=%08Lx, status=%d\n", | |
1139 | p->index, p->name, p->type, p->audioset, | |
1140 | p->tuner, | |
1141 | (unsigned long long)p->std, | |
1142 | p->status); | |
1143 | break; | |
1144 | } | |
1145 | case VIDIOC_G_INPUT: | |
1146 | { | |
1147 | unsigned int *i = arg; | |
1148 | ||
a399810c | 1149 | ret = ops->vidioc_g_input(file, fh, i); |
35ea11ff HV |
1150 | if (!ret) |
1151 | dbgarg(cmd, "value=%d\n", *i); | |
1152 | break; | |
1153 | } | |
1154 | case VIDIOC_S_INPUT: | |
1155 | { | |
1156 | unsigned int *i = arg; | |
1157 | ||
35ea11ff | 1158 | dbgarg(cmd, "value=%d\n", *i); |
a399810c | 1159 | ret = ops->vidioc_s_input(file, fh, *i); |
35ea11ff HV |
1160 | break; |
1161 | } | |
1162 | ||
1163 | /* ------ output switching ---------- */ | |
1164 | case VIDIOC_ENUMOUTPUT: | |
1165 | { | |
1166 | struct v4l2_output *p = arg; | |
35ea11ff | 1167 | |
b6456c0c MK |
1168 | /* |
1169 | * We set the flags for CAP_PRESETS, CAP_CUSTOM_TIMINGS & | |
1170 | * CAP_STD here based on ioctl handler provided by the | |
1171 | * driver. If the driver doesn't support these | |
1172 | * for a specific output, it must override these flags. | |
1173 | */ | |
1174 | if (ops->vidioc_s_std) | |
1175 | p->capabilities |= V4L2_OUT_CAP_STD; | |
1176 | if (ops->vidioc_s_dv_preset) | |
1177 | p->capabilities |= V4L2_OUT_CAP_PRESETS; | |
1178 | if (ops->vidioc_s_dv_timings) | |
1179 | p->capabilities |= V4L2_OUT_CAP_CUSTOM_TIMINGS; | |
1180 | ||
a399810c | 1181 | ret = ops->vidioc_enum_output(file, fh, p); |
35ea11ff HV |
1182 | if (!ret) |
1183 | dbgarg(cmd, "index=%d, name=%s, type=%d, " | |
1184 | "audioset=0x%x, " | |
1185 | "modulator=%d, std=0x%08Lx\n", | |
1186 | p->index, p->name, p->type, p->audioset, | |
1187 | p->modulator, (unsigned long long)p->std); | |
1188 | break; | |
1189 | } | |
1190 | case VIDIOC_G_OUTPUT: | |
1191 | { | |
1192 | unsigned int *i = arg; | |
1193 | ||
a399810c | 1194 | ret = ops->vidioc_g_output(file, fh, i); |
35ea11ff HV |
1195 | if (!ret) |
1196 | dbgarg(cmd, "value=%d\n", *i); | |
1197 | break; | |
1198 | } | |
1199 | case VIDIOC_S_OUTPUT: | |
1200 | { | |
1201 | unsigned int *i = arg; | |
1202 | ||
35ea11ff | 1203 | dbgarg(cmd, "value=%d\n", *i); |
a399810c | 1204 | ret = ops->vidioc_s_output(file, fh, *i); |
35ea11ff HV |
1205 | break; |
1206 | } | |
1207 | ||
1208 | /* --- controls ---------------------------------------------- */ | |
1209 | case VIDIOC_QUERYCTRL: | |
1210 | { | |
1211 | struct v4l2_queryctrl *p = arg; | |
1212 | ||
2d28b686 HV |
1213 | if (vfh && vfh->ctrl_handler) |
1214 | ret = v4l2_queryctrl(vfh->ctrl_handler, p); | |
1215 | else if (vfd->ctrl_handler) | |
11bbc1ca HV |
1216 | ret = v4l2_queryctrl(vfd->ctrl_handler, p); |
1217 | else if (ops->vidioc_queryctrl) | |
1218 | ret = ops->vidioc_queryctrl(file, fh, p); | |
1219 | else | |
35ea11ff | 1220 | break; |
35ea11ff HV |
1221 | if (!ret) |
1222 | dbgarg(cmd, "id=0x%x, type=%d, name=%s, min/max=%d/%d, " | |
1223 | "step=%d, default=%d, flags=0x%08x\n", | |
1224 | p->id, p->type, p->name, | |
1225 | p->minimum, p->maximum, | |
1226 | p->step, p->default_value, p->flags); | |
1227 | else | |
1228 | dbgarg(cmd, "id=0x%x\n", p->id); | |
1229 | break; | |
1230 | } | |
1231 | case VIDIOC_G_CTRL: | |
1232 | { | |
1233 | struct v4l2_control *p = arg; | |
1234 | ||
2d28b686 HV |
1235 | if (vfh && vfh->ctrl_handler) |
1236 | ret = v4l2_g_ctrl(vfh->ctrl_handler, p); | |
1237 | else if (vfd->ctrl_handler) | |
11bbc1ca HV |
1238 | ret = v4l2_g_ctrl(vfd->ctrl_handler, p); |
1239 | else if (ops->vidioc_g_ctrl) | |
a399810c HV |
1240 | ret = ops->vidioc_g_ctrl(file, fh, p); |
1241 | else if (ops->vidioc_g_ext_ctrls) { | |
35ea11ff HV |
1242 | struct v4l2_ext_controls ctrls; |
1243 | struct v4l2_ext_control ctrl; | |
1244 | ||
1245 | ctrls.ctrl_class = V4L2_CTRL_ID2CLASS(p->id); | |
1246 | ctrls.count = 1; | |
1247 | ctrls.controls = &ctrl; | |
1248 | ctrl.id = p->id; | |
1249 | ctrl.value = p->value; | |
1250 | if (check_ext_ctrls(&ctrls, 1)) { | |
a399810c | 1251 | ret = ops->vidioc_g_ext_ctrls(file, fh, &ctrls); |
35ea11ff HV |
1252 | if (ret == 0) |
1253 | p->value = ctrl.value; | |
1254 | } | |
1255 | } else | |
1256 | break; | |
1257 | if (!ret) | |
1258 | dbgarg(cmd, "id=0x%x, value=%d\n", p->id, p->value); | |
1259 | else | |
1260 | dbgarg(cmd, "id=0x%x\n", p->id); | |
1261 | break; | |
1262 | } | |
1263 | case VIDIOC_S_CTRL: | |
1264 | { | |
1265 | struct v4l2_control *p = arg; | |
1266 | struct v4l2_ext_controls ctrls; | |
1267 | struct v4l2_ext_control ctrl; | |
1268 | ||
2d28b686 | 1269 | if (!(vfh && vfh->ctrl_handler) && !vfd->ctrl_handler && |
11bbc1ca | 1270 | !ops->vidioc_s_ctrl && !ops->vidioc_s_ext_ctrls) |
35ea11ff HV |
1271 | break; |
1272 | ||
1273 | dbgarg(cmd, "id=0x%x, value=%d\n", p->id, p->value); | |
1274 | ||
2d28b686 | 1275 | if (vfh && vfh->ctrl_handler) { |
ab892bac | 1276 | ret = v4l2_s_ctrl(vfh, vfh->ctrl_handler, p); |
2d28b686 HV |
1277 | break; |
1278 | } | |
11bbc1ca | 1279 | if (vfd->ctrl_handler) { |
ab892bac | 1280 | ret = v4l2_s_ctrl(NULL, vfd->ctrl_handler, p); |
11bbc1ca HV |
1281 | break; |
1282 | } | |
a399810c HV |
1283 | if (ops->vidioc_s_ctrl) { |
1284 | ret = ops->vidioc_s_ctrl(file, fh, p); | |
35ea11ff HV |
1285 | break; |
1286 | } | |
a399810c | 1287 | if (!ops->vidioc_s_ext_ctrls) |
35ea11ff HV |
1288 | break; |
1289 | ||
1290 | ctrls.ctrl_class = V4L2_CTRL_ID2CLASS(p->id); | |
1291 | ctrls.count = 1; | |
1292 | ctrls.controls = &ctrl; | |
1293 | ctrl.id = p->id; | |
1294 | ctrl.value = p->value; | |
1295 | if (check_ext_ctrls(&ctrls, 1)) | |
a399810c | 1296 | ret = ops->vidioc_s_ext_ctrls(file, fh, &ctrls); |
93d5a30b HV |
1297 | else |
1298 | ret = -EINVAL; | |
35ea11ff HV |
1299 | break; |
1300 | } | |
1301 | case VIDIOC_G_EXT_CTRLS: | |
1302 | { | |
1303 | struct v4l2_ext_controls *p = arg; | |
1304 | ||
1305 | p->error_idx = p->count; | |
2d28b686 HV |
1306 | if (vfh && vfh->ctrl_handler) |
1307 | ret = v4l2_g_ext_ctrls(vfh->ctrl_handler, p); | |
1308 | else if (vfd->ctrl_handler) | |
11bbc1ca | 1309 | ret = v4l2_g_ext_ctrls(vfd->ctrl_handler, p); |
93d5a30b HV |
1310 | else if (ops->vidioc_g_ext_ctrls) |
1311 | ret = check_ext_ctrls(p, 0) ? | |
1312 | ops->vidioc_g_ext_ctrls(file, fh, p) : | |
1313 | -EINVAL; | |
11bbc1ca HV |
1314 | else |
1315 | break; | |
35ea11ff HV |
1316 | v4l_print_ext_ctrls(cmd, vfd, p, !ret); |
1317 | break; | |
1318 | } | |
1319 | case VIDIOC_S_EXT_CTRLS: | |
1320 | { | |
1321 | struct v4l2_ext_controls *p = arg; | |
1322 | ||
1323 | p->error_idx = p->count; | |
2d28b686 HV |
1324 | if (!(vfh && vfh->ctrl_handler) && !vfd->ctrl_handler && |
1325 | !ops->vidioc_s_ext_ctrls) | |
35ea11ff HV |
1326 | break; |
1327 | v4l_print_ext_ctrls(cmd, vfd, p, 1); | |
2d28b686 | 1328 | if (vfh && vfh->ctrl_handler) |
ab892bac | 1329 | ret = v4l2_s_ext_ctrls(vfh, vfh->ctrl_handler, p); |
2d28b686 | 1330 | else if (vfd->ctrl_handler) |
ab892bac | 1331 | ret = v4l2_s_ext_ctrls(NULL, vfd->ctrl_handler, p); |
11bbc1ca | 1332 | else if (check_ext_ctrls(p, 0)) |
a399810c | 1333 | ret = ops->vidioc_s_ext_ctrls(file, fh, p); |
93d5a30b HV |
1334 | else |
1335 | ret = -EINVAL; | |
35ea11ff HV |
1336 | break; |
1337 | } | |
1338 | case VIDIOC_TRY_EXT_CTRLS: | |
1339 | { | |
1340 | struct v4l2_ext_controls *p = arg; | |
1341 | ||
1342 | p->error_idx = p->count; | |
2d28b686 HV |
1343 | if (!(vfh && vfh->ctrl_handler) && !vfd->ctrl_handler && |
1344 | !ops->vidioc_try_ext_ctrls) | |
35ea11ff HV |
1345 | break; |
1346 | v4l_print_ext_ctrls(cmd, vfd, p, 1); | |
2d28b686 HV |
1347 | if (vfh && vfh->ctrl_handler) |
1348 | ret = v4l2_try_ext_ctrls(vfh->ctrl_handler, p); | |
1349 | else if (vfd->ctrl_handler) | |
11bbc1ca HV |
1350 | ret = v4l2_try_ext_ctrls(vfd->ctrl_handler, p); |
1351 | else if (check_ext_ctrls(p, 0)) | |
a399810c | 1352 | ret = ops->vidioc_try_ext_ctrls(file, fh, p); |
93d5a30b HV |
1353 | else |
1354 | ret = -EINVAL; | |
35ea11ff HV |
1355 | break; |
1356 | } | |
1357 | case VIDIOC_QUERYMENU: | |
1358 | { | |
1359 | struct v4l2_querymenu *p = arg; | |
1360 | ||
2d28b686 HV |
1361 | if (vfh && vfh->ctrl_handler) |
1362 | ret = v4l2_querymenu(vfh->ctrl_handler, p); | |
1363 | else if (vfd->ctrl_handler) | |
11bbc1ca HV |
1364 | ret = v4l2_querymenu(vfd->ctrl_handler, p); |
1365 | else if (ops->vidioc_querymenu) | |
1366 | ret = ops->vidioc_querymenu(file, fh, p); | |
1367 | else | |
35ea11ff | 1368 | break; |
35ea11ff HV |
1369 | if (!ret) |
1370 | dbgarg(cmd, "id=0x%x, index=%d, name=%s\n", | |
1371 | p->id, p->index, p->name); | |
1372 | else | |
1373 | dbgarg(cmd, "id=0x%x, index=%d\n", | |
1374 | p->id, p->index); | |
1375 | break; | |
1376 | } | |
1377 | /* --- audio ---------------------------------------------- */ | |
1378 | case VIDIOC_ENUMAUDIO: | |
1379 | { | |
1380 | struct v4l2_audio *p = arg; | |
1381 | ||
a399810c | 1382 | ret = ops->vidioc_enumaudio(file, fh, p); |
35ea11ff HV |
1383 | if (!ret) |
1384 | dbgarg(cmd, "index=%d, name=%s, capability=0x%x, " | |
1385 | "mode=0x%x\n", p->index, p->name, | |
1386 | p->capability, p->mode); | |
1387 | else | |
1388 | dbgarg(cmd, "index=%d\n", p->index); | |
1389 | break; | |
1390 | } | |
1391 | case VIDIOC_G_AUDIO: | |
1392 | { | |
1393 | struct v4l2_audio *p = arg; | |
35ea11ff | 1394 | |
a399810c | 1395 | ret = ops->vidioc_g_audio(file, fh, p); |
35ea11ff HV |
1396 | if (!ret) |
1397 | dbgarg(cmd, "index=%d, name=%s, capability=0x%x, " | |
1398 | "mode=0x%x\n", p->index, | |
1399 | p->name, p->capability, p->mode); | |
1400 | else | |
1401 | dbgarg(cmd, "index=%d\n", p->index); | |
1402 | break; | |
1403 | } | |
1404 | case VIDIOC_S_AUDIO: | |
1405 | { | |
1406 | struct v4l2_audio *p = arg; | |
1407 | ||
35ea11ff HV |
1408 | dbgarg(cmd, "index=%d, name=%s, capability=0x%x, " |
1409 | "mode=0x%x\n", p->index, p->name, | |
1410 | p->capability, p->mode); | |
a399810c | 1411 | ret = ops->vidioc_s_audio(file, fh, p); |
35ea11ff HV |
1412 | break; |
1413 | } | |
1414 | case VIDIOC_ENUMAUDOUT: | |
1415 | { | |
1416 | struct v4l2_audioout *p = arg; | |
1417 | ||
35ea11ff | 1418 | dbgarg(cmd, "Enum for index=%d\n", p->index); |
a399810c | 1419 | ret = ops->vidioc_enumaudout(file, fh, p); |
35ea11ff HV |
1420 | if (!ret) |
1421 | dbgarg2("index=%d, name=%s, capability=%d, " | |
1422 | "mode=%d\n", p->index, p->name, | |
1423 | p->capability, p->mode); | |
1424 | break; | |
1425 | } | |
1426 | case VIDIOC_G_AUDOUT: | |
1427 | { | |
1428 | struct v4l2_audioout *p = arg; | |
1429 | ||
a399810c | 1430 | ret = ops->vidioc_g_audout(file, fh, p); |
35ea11ff HV |
1431 | if (!ret) |
1432 | dbgarg2("index=%d, name=%s, capability=%d, " | |
1433 | "mode=%d\n", p->index, p->name, | |
1434 | p->capability, p->mode); | |
1435 | break; | |
1436 | } | |
1437 | case VIDIOC_S_AUDOUT: | |
1438 | { | |
1439 | struct v4l2_audioout *p = arg; | |
1440 | ||
35ea11ff HV |
1441 | dbgarg(cmd, "index=%d, name=%s, capability=%d, " |
1442 | "mode=%d\n", p->index, p->name, | |
1443 | p->capability, p->mode); | |
1444 | ||
a399810c | 1445 | ret = ops->vidioc_s_audout(file, fh, p); |
35ea11ff HV |
1446 | break; |
1447 | } | |
1448 | case VIDIOC_G_MODULATOR: | |
1449 | { | |
1450 | struct v4l2_modulator *p = arg; | |
1451 | ||
a399810c | 1452 | ret = ops->vidioc_g_modulator(file, fh, p); |
35ea11ff HV |
1453 | if (!ret) |
1454 | dbgarg(cmd, "index=%d, name=%s, " | |
1455 | "capability=%d, rangelow=%d," | |
1456 | " rangehigh=%d, txsubchans=%d\n", | |
1457 | p->index, p->name, p->capability, | |
1458 | p->rangelow, p->rangehigh, | |
1459 | p->txsubchans); | |
1460 | break; | |
1461 | } | |
1462 | case VIDIOC_S_MODULATOR: | |
1463 | { | |
1464 | struct v4l2_modulator *p = arg; | |
1465 | ||
35ea11ff HV |
1466 | dbgarg(cmd, "index=%d, name=%s, capability=%d, " |
1467 | "rangelow=%d, rangehigh=%d, txsubchans=%d\n", | |
1468 | p->index, p->name, p->capability, p->rangelow, | |
1469 | p->rangehigh, p->txsubchans); | |
a399810c | 1470 | ret = ops->vidioc_s_modulator(file, fh, p); |
35ea11ff HV |
1471 | break; |
1472 | } | |
1473 | case VIDIOC_G_CROP: | |
1474 | { | |
1475 | struct v4l2_crop *p = arg; | |
1476 | ||
35ea11ff | 1477 | dbgarg(cmd, "type=%s\n", prt_names(p->type, v4l2_type_names)); |
992efeff TS |
1478 | |
1479 | if (ops->vidioc_g_crop) { | |
1480 | ret = ops->vidioc_g_crop(file, fh, p); | |
1481 | } else { | |
1482 | /* simulate capture crop using selection api */ | |
1483 | struct v4l2_selection s = { | |
1484 | .type = p->type, | |
1485 | }; | |
1486 | ||
1487 | /* crop means compose for output devices */ | |
1488 | if (V4L2_TYPE_IS_OUTPUT(p->type)) | |
1489 | s.target = V4L2_SEL_TGT_COMPOSE_ACTIVE; | |
1490 | else | |
1491 | s.target = V4L2_SEL_TGT_CROP_ACTIVE; | |
1492 | ||
1493 | ret = ops->vidioc_g_selection(file, fh, &s); | |
1494 | ||
1495 | /* copying results to old structure on success */ | |
1496 | if (!ret) | |
1497 | p->c = s.r; | |
1498 | } | |
1499 | ||
35ea11ff HV |
1500 | if (!ret) |
1501 | dbgrect(vfd, "", &p->c); | |
1502 | break; | |
1503 | } | |
1504 | case VIDIOC_S_CROP: | |
1505 | { | |
1506 | struct v4l2_crop *p = arg; | |
1507 | ||
35ea11ff HV |
1508 | dbgarg(cmd, "type=%s\n", prt_names(p->type, v4l2_type_names)); |
1509 | dbgrect(vfd, "", &p->c); | |
992efeff TS |
1510 | |
1511 | if (ops->vidioc_s_crop) { | |
1512 | ret = ops->vidioc_s_crop(file, fh, p); | |
1513 | } else { | |
1514 | /* simulate capture crop using selection api */ | |
1515 | struct v4l2_selection s = { | |
1516 | .type = p->type, | |
1517 | .r = p->c, | |
1518 | }; | |
1519 | ||
1520 | /* crop means compose for output devices */ | |
1521 | if (V4L2_TYPE_IS_OUTPUT(p->type)) | |
1522 | s.target = V4L2_SEL_TGT_COMPOSE_ACTIVE; | |
1523 | else | |
1524 | s.target = V4L2_SEL_TGT_CROP_ACTIVE; | |
1525 | ||
1526 | ret = ops->vidioc_s_selection(file, fh, &s); | |
1527 | } | |
35ea11ff HV |
1528 | break; |
1529 | } | |
0e8caace TS |
1530 | case VIDIOC_G_SELECTION: |
1531 | { | |
1532 | struct v4l2_selection *p = arg; | |
1533 | ||
0e8caace TS |
1534 | dbgarg(cmd, "type=%s\n", prt_names(p->type, v4l2_type_names)); |
1535 | ||
1536 | ret = ops->vidioc_g_selection(file, fh, p); | |
1537 | if (!ret) | |
1538 | dbgrect(vfd, "", &p->r); | |
1539 | break; | |
1540 | } | |
1541 | case VIDIOC_S_SELECTION: | |
1542 | { | |
1543 | struct v4l2_selection *p = arg; | |
1544 | ||
0e8caace TS |
1545 | |
1546 | dbgarg(cmd, "type=%s\n", prt_names(p->type, v4l2_type_names)); | |
1547 | dbgrect(vfd, "", &p->r); | |
1548 | ||
1549 | ret = ops->vidioc_s_selection(file, fh, p); | |
1550 | break; | |
1551 | } | |
35ea11ff HV |
1552 | case VIDIOC_CROPCAP: |
1553 | { | |
1554 | struct v4l2_cropcap *p = arg; | |
1555 | ||
1556 | /*FIXME: Should also show v4l2_fract pixelaspect */ | |
35ea11ff | 1557 | dbgarg(cmd, "type=%s\n", prt_names(p->type, v4l2_type_names)); |
992efeff TS |
1558 | if (ops->vidioc_cropcap) { |
1559 | ret = ops->vidioc_cropcap(file, fh, p); | |
1560 | } else { | |
1561 | struct v4l2_selection s = { .type = p->type }; | |
1562 | ||
1563 | /* obtaining bounds */ | |
1564 | if (V4L2_TYPE_IS_OUTPUT(p->type)) | |
1565 | s.target = V4L2_SEL_TGT_COMPOSE_BOUNDS; | |
1566 | else | |
1567 | s.target = V4L2_SEL_TGT_CROP_BOUNDS; | |
1568 | ||
1569 | ret = ops->vidioc_g_selection(file, fh, &s); | |
1570 | if (ret) | |
1571 | break; | |
1572 | p->bounds = s.r; | |
1573 | ||
1574 | /* obtaining defrect */ | |
1575 | if (V4L2_TYPE_IS_OUTPUT(p->type)) | |
1576 | s.target = V4L2_SEL_TGT_COMPOSE_DEFAULT; | |
1577 | else | |
1578 | s.target = V4L2_SEL_TGT_CROP_DEFAULT; | |
1579 | ||
1580 | ret = ops->vidioc_g_selection(file, fh, &s); | |
1581 | if (ret) | |
1582 | break; | |
1583 | p->defrect = s.r; | |
1584 | ||
1585 | /* setting trivial pixelaspect */ | |
1586 | p->pixelaspect.numerator = 1; | |
1587 | p->pixelaspect.denominator = 1; | |
1588 | } | |
1589 | ||
35ea11ff HV |
1590 | if (!ret) { |
1591 | dbgrect(vfd, "bounds ", &p->bounds); | |
1592 | dbgrect(vfd, "defrect ", &p->defrect); | |
1593 | } | |
1594 | break; | |
1595 | } | |
1596 | case VIDIOC_G_JPEGCOMP: | |
1597 | { | |
1598 | struct v4l2_jpegcompression *p = arg; | |
1599 | ||
a399810c | 1600 | ret = ops->vidioc_g_jpegcomp(file, fh, p); |
35ea11ff HV |
1601 | if (!ret) |
1602 | dbgarg(cmd, "quality=%d, APPn=%d, " | |
1603 | "APP_len=%d, COM_len=%d, " | |
1604 | "jpeg_markers=%d\n", | |
1605 | p->quality, p->APPn, p->APP_len, | |
1606 | p->COM_len, p->jpeg_markers); | |
1607 | break; | |
1608 | } | |
1609 | case VIDIOC_S_JPEGCOMP: | |
1610 | { | |
1611 | struct v4l2_jpegcompression *p = arg; | |
1612 | ||
35ea11ff HV |
1613 | dbgarg(cmd, "quality=%d, APPn=%d, APP_len=%d, " |
1614 | "COM_len=%d, jpeg_markers=%d\n", | |
1615 | p->quality, p->APPn, p->APP_len, | |
1616 | p->COM_len, p->jpeg_markers); | |
93d5a30b | 1617 | ret = ops->vidioc_s_jpegcomp(file, fh, p); |
35ea11ff HV |
1618 | break; |
1619 | } | |
1620 | case VIDIOC_G_ENC_INDEX: | |
1621 | { | |
1622 | struct v4l2_enc_idx *p = arg; | |
1623 | ||
a399810c | 1624 | ret = ops->vidioc_g_enc_index(file, fh, p); |
35ea11ff HV |
1625 | if (!ret) |
1626 | dbgarg(cmd, "entries=%d, entries_cap=%d\n", | |
1627 | p->entries, p->entries_cap); | |
1628 | break; | |
1629 | } | |
1630 | case VIDIOC_ENCODER_CMD: | |
1631 | { | |
1632 | struct v4l2_encoder_cmd *p = arg; | |
1633 | ||
a399810c | 1634 | ret = ops->vidioc_encoder_cmd(file, fh, p); |
35ea11ff HV |
1635 | if (!ret) |
1636 | dbgarg(cmd, "cmd=%d, flags=%x\n", p->cmd, p->flags); | |
1637 | break; | |
1638 | } | |
1639 | case VIDIOC_TRY_ENCODER_CMD: | |
1640 | { | |
1641 | struct v4l2_encoder_cmd *p = arg; | |
1642 | ||
a399810c | 1643 | ret = ops->vidioc_try_encoder_cmd(file, fh, p); |
35ea11ff HV |
1644 | if (!ret) |
1645 | dbgarg(cmd, "cmd=%d, flags=%x\n", p->cmd, p->flags); | |
1646 | break; | |
1647 | } | |
a45c0ad5 HV |
1648 | case VIDIOC_DECODER_CMD: |
1649 | { | |
1650 | struct v4l2_decoder_cmd *p = arg; | |
1651 | ||
a45c0ad5 HV |
1652 | ret = ops->vidioc_decoder_cmd(file, fh, p); |
1653 | if (!ret) | |
1654 | dbgarg(cmd, "cmd=%d, flags=%x\n", p->cmd, p->flags); | |
1655 | break; | |
1656 | } | |
1657 | case VIDIOC_TRY_DECODER_CMD: | |
1658 | { | |
1659 | struct v4l2_decoder_cmd *p = arg; | |
1660 | ||
a45c0ad5 HV |
1661 | ret = ops->vidioc_try_decoder_cmd(file, fh, p); |
1662 | if (!ret) | |
1663 | dbgarg(cmd, "cmd=%d, flags=%x\n", p->cmd, p->flags); | |
1664 | break; | |
1665 | } | |
35ea11ff HV |
1666 | case VIDIOC_G_PARM: |
1667 | { | |
1668 | struct v4l2_streamparm *p = arg; | |
35ea11ff | 1669 | |
a399810c | 1670 | if (ops->vidioc_g_parm) { |
34796bc0 TP |
1671 | ret = check_fmt(ops, p->type); |
1672 | if (ret) | |
1673 | break; | |
a399810c | 1674 | ret = ops->vidioc_g_parm(file, fh, p); |
35ea11ff | 1675 | } else { |
9bedc7f7 HV |
1676 | v4l2_std_id std = vfd->current_norm; |
1677 | ||
93d5a30b | 1678 | ret = -EINVAL; |
35ea11ff | 1679 | if (p->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) |
3f5e1824 | 1680 | break; |
35ea11ff | 1681 | |
35ea11ff | 1682 | ret = 0; |
0c142c86 | 1683 | p->parm.capture.readbuffers = 2; |
9bedc7f7 HV |
1684 | if (ops->vidioc_g_std) |
1685 | ret = ops->vidioc_g_std(file, fh, &std); | |
9bedc7f7 HV |
1686 | if (ret == 0) |
1687 | v4l2_video_std_frame_period(std, | |
1688 | &p->parm.capture.timeperframe); | |
35ea11ff HV |
1689 | } |
1690 | ||
1691 | dbgarg(cmd, "type=%d\n", p->type); | |
1692 | break; | |
1693 | } | |
1694 | case VIDIOC_S_PARM: | |
1695 | { | |
1696 | struct v4l2_streamparm *p = arg; | |
1697 | ||
34796bc0 TP |
1698 | ret = check_fmt(ops, p->type); |
1699 | if (ret) | |
1700 | break; | |
1701 | ||
35ea11ff | 1702 | dbgarg(cmd, "type=%d\n", p->type); |
a399810c | 1703 | ret = ops->vidioc_s_parm(file, fh, p); |
35ea11ff HV |
1704 | break; |
1705 | } | |
1706 | case VIDIOC_G_TUNER: | |
1707 | { | |
1708 | struct v4l2_tuner *p = arg; | |
35ea11ff | 1709 | |
227690df HV |
1710 | p->type = (vfd->vfl_type == VFL_TYPE_RADIO) ? |
1711 | V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV; | |
a399810c | 1712 | ret = ops->vidioc_g_tuner(file, fh, p); |
35ea11ff HV |
1713 | if (!ret) |
1714 | dbgarg(cmd, "index=%d, name=%s, type=%d, " | |
1715 | "capability=0x%x, rangelow=%d, " | |
1716 | "rangehigh=%d, signal=%d, afc=%d, " | |
1717 | "rxsubchans=0x%x, audmode=%d\n", | |
1718 | p->index, p->name, p->type, | |
1719 | p->capability, p->rangelow, | |
1720 | p->rangehigh, p->signal, p->afc, | |
1721 | p->rxsubchans, p->audmode); | |
1722 | break; | |
1723 | } | |
1724 | case VIDIOC_S_TUNER: | |
1725 | { | |
1726 | struct v4l2_tuner *p = arg; | |
1727 | ||
227690df HV |
1728 | p->type = (vfd->vfl_type == VFL_TYPE_RADIO) ? |
1729 | V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV; | |
35ea11ff HV |
1730 | dbgarg(cmd, "index=%d, name=%s, type=%d, " |
1731 | "capability=0x%x, rangelow=%d, " | |
1732 | "rangehigh=%d, signal=%d, afc=%d, " | |
1733 | "rxsubchans=0x%x, audmode=%d\n", | |
1734 | p->index, p->name, p->type, | |
1735 | p->capability, p->rangelow, | |
1736 | p->rangehigh, p->signal, p->afc, | |
1737 | p->rxsubchans, p->audmode); | |
a399810c | 1738 | ret = ops->vidioc_s_tuner(file, fh, p); |
35ea11ff HV |
1739 | break; |
1740 | } | |
1741 | case VIDIOC_G_FREQUENCY: | |
1742 | { | |
1743 | struct v4l2_frequency *p = arg; | |
1744 | ||
227690df HV |
1745 | p->type = (vfd->vfl_type == VFL_TYPE_RADIO) ? |
1746 | V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV; | |
a399810c | 1747 | ret = ops->vidioc_g_frequency(file, fh, p); |
35ea11ff HV |
1748 | if (!ret) |
1749 | dbgarg(cmd, "tuner=%d, type=%d, frequency=%d\n", | |
1750 | p->tuner, p->type, p->frequency); | |
1751 | break; | |
1752 | } | |
1753 | case VIDIOC_S_FREQUENCY: | |
1754 | { | |
1755 | struct v4l2_frequency *p = arg; | |
aa07eec5 | 1756 | enum v4l2_tuner_type type; |
35ea11ff | 1757 | |
aa07eec5 HV |
1758 | type = (vfd->vfl_type == VFL_TYPE_RADIO) ? |
1759 | V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV; | |
35ea11ff HV |
1760 | dbgarg(cmd, "tuner=%d, type=%d, frequency=%d\n", |
1761 | p->tuner, p->type, p->frequency); | |
aa07eec5 HV |
1762 | if (p->type != type) |
1763 | ret = -EINVAL; | |
1764 | else | |
1765 | ret = ops->vidioc_s_frequency(file, fh, p); | |
35ea11ff HV |
1766 | break; |
1767 | } | |
1768 | case VIDIOC_G_SLICED_VBI_CAP: | |
1769 | { | |
1770 | struct v4l2_sliced_vbi_cap *p = arg; | |
35ea11ff | 1771 | |
19c96e4b TP |
1772 | /* Clear up to type, everything after type is zerod already */ |
1773 | memset(p, 0, offsetof(struct v4l2_sliced_vbi_cap, type)); | |
1774 | ||
35ea11ff | 1775 | dbgarg(cmd, "type=%s\n", prt_names(p->type, v4l2_type_names)); |
a399810c | 1776 | ret = ops->vidioc_g_sliced_vbi_cap(file, fh, p); |
35ea11ff HV |
1777 | if (!ret) |
1778 | dbgarg2("service_set=%d\n", p->service_set); | |
1779 | break; | |
1780 | } | |
1781 | case VIDIOC_LOG_STATUS: | |
1782 | { | |
e2ecb257 HV |
1783 | if (vfd->v4l2_dev) |
1784 | pr_info("%s: ================= START STATUS =================\n", | |
1785 | vfd->v4l2_dev->name); | |
a399810c | 1786 | ret = ops->vidioc_log_status(file, fh); |
e2ecb257 HV |
1787 | if (vfd->v4l2_dev) |
1788 | pr_info("%s: ================== END STATUS ==================\n", | |
1789 | vfd->v4l2_dev->name); | |
35ea11ff HV |
1790 | break; |
1791 | } | |
35ea11ff HV |
1792 | case VIDIOC_DBG_G_REGISTER: |
1793 | { | |
8ab75e3e | 1794 | #ifdef CONFIG_VIDEO_ADV_DEBUG |
aecde8b5 | 1795 | struct v4l2_dbg_register *p = arg; |
35ea11ff | 1796 | |
48ea0be0 HV |
1797 | if (!capable(CAP_SYS_ADMIN)) |
1798 | ret = -EPERM; | |
1799 | else | |
1800 | ret = ops->vidioc_g_register(file, fh, p); | |
8ab75e3e | 1801 | #endif |
35ea11ff HV |
1802 | break; |
1803 | } | |
1804 | case VIDIOC_DBG_S_REGISTER: | |
1805 | { | |
8ab75e3e | 1806 | #ifdef CONFIG_VIDEO_ADV_DEBUG |
aecde8b5 | 1807 | struct v4l2_dbg_register *p = arg; |
35ea11ff | 1808 | |
48ea0be0 HV |
1809 | if (!capable(CAP_SYS_ADMIN)) |
1810 | ret = -EPERM; | |
1811 | else | |
1812 | ret = ops->vidioc_s_register(file, fh, p); | |
8ab75e3e | 1813 | #endif |
35ea11ff HV |
1814 | break; |
1815 | } | |
aecde8b5 | 1816 | case VIDIOC_DBG_G_CHIP_IDENT: |
35ea11ff | 1817 | { |
aecde8b5 | 1818 | struct v4l2_dbg_chip_ident *p = arg; |
35ea11ff | 1819 | |
80b36e0f HV |
1820 | p->ident = V4L2_IDENT_NONE; |
1821 | p->revision = 0; | |
a399810c | 1822 | ret = ops->vidioc_g_chip_ident(file, fh, p); |
35ea11ff HV |
1823 | if (!ret) |
1824 | dbgarg(cmd, "chip_ident=%u, revision=0x%x\n", p->ident, p->revision); | |
1825 | break; | |
1826 | } | |
35ea11ff HV |
1827 | case VIDIOC_S_HW_FREQ_SEEK: |
1828 | { | |
1829 | struct v4l2_hw_freq_seek *p = arg; | |
a6cf90a9 | 1830 | enum v4l2_tuner_type type; |
35ea11ff | 1831 | |
a6cf90a9 HV |
1832 | type = (vfd->vfl_type == VFL_TYPE_RADIO) ? |
1833 | V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV; | |
35ea11ff | 1834 | dbgarg(cmd, |
a6cf90a9 HV |
1835 | "tuner=%u, type=%u, seek_upward=%u, wrap_around=%u, spacing=%u\n", |
1836 | p->tuner, p->type, p->seek_upward, p->wrap_around, p->spacing); | |
1837 | if (p->type != type) | |
1838 | ret = -EINVAL; | |
1839 | else | |
1840 | ret = ops->vidioc_s_hw_freq_seek(file, fh, p); | |
a399810c HV |
1841 | break; |
1842 | } | |
74d83fa0 MCC |
1843 | case VIDIOC_ENUM_FRAMESIZES: |
1844 | { | |
1845 | struct v4l2_frmsizeenum *p = arg; | |
1846 | ||
74d83fa0 MCC |
1847 | ret = ops->vidioc_enum_framesizes(file, fh, p); |
1848 | dbgarg(cmd, | |
d1afe425 MCC |
1849 | "index=%d, pixelformat=%c%c%c%c, type=%d ", |
1850 | p->index, | |
1851 | (p->pixel_format & 0xff), | |
1852 | (p->pixel_format >> 8) & 0xff, | |
1853 | (p->pixel_format >> 16) & 0xff, | |
1854 | (p->pixel_format >> 24) & 0xff, | |
1855 | p->type); | |
74d83fa0 MCC |
1856 | switch (p->type) { |
1857 | case V4L2_FRMSIZE_TYPE_DISCRETE: | |
d33fbcbb | 1858 | dbgarg3("width = %d, height=%d\n", |
74d83fa0 MCC |
1859 | p->discrete.width, p->discrete.height); |
1860 | break; | |
1861 | case V4L2_FRMSIZE_TYPE_STEPWISE: | |
d33fbcbb | 1862 | dbgarg3("min %dx%d, max %dx%d, step %dx%d\n", |
74d83fa0 MCC |
1863 | p->stepwise.min_width, p->stepwise.min_height, |
1864 | p->stepwise.step_width, p->stepwise.step_height, | |
1865 | p->stepwise.max_width, p->stepwise.max_height); | |
1866 | break; | |
1867 | case V4L2_FRMSIZE_TYPE_CONTINUOUS: | |
d33fbcbb | 1868 | dbgarg3("continuous\n"); |
74d83fa0 MCC |
1869 | break; |
1870 | default: | |
d33fbcbb | 1871 | dbgarg3("- Unknown type!\n"); |
74d83fa0 MCC |
1872 | } |
1873 | ||
1874 | break; | |
1875 | } | |
1876 | case VIDIOC_ENUM_FRAMEINTERVALS: | |
1877 | { | |
1878 | struct v4l2_frmivalenum *p = arg; | |
1879 | ||
74d83fa0 MCC |
1880 | ret = ops->vidioc_enum_frameintervals(file, fh, p); |
1881 | dbgarg(cmd, | |
1882 | "index=%d, pixelformat=%d, width=%d, height=%d, type=%d ", | |
1883 | p->index, p->pixel_format, | |
1884 | p->width, p->height, p->type); | |
1885 | switch (p->type) { | |
1886 | case V4L2_FRMIVAL_TYPE_DISCRETE: | |
1887 | dbgarg2("fps=%d/%d\n", | |
1888 | p->discrete.numerator, | |
1889 | p->discrete.denominator); | |
1890 | break; | |
1891 | case V4L2_FRMIVAL_TYPE_STEPWISE: | |
1958578d MCC |
1892 | dbgarg2("min=%d/%d, max=%d/%d, step=%d/%d\n", |
1893 | p->stepwise.min.numerator, | |
1894 | p->stepwise.min.denominator, | |
1895 | p->stepwise.max.numerator, | |
1896 | p->stepwise.max.denominator, | |
1897 | p->stepwise.step.numerator, | |
1898 | p->stepwise.step.denominator); | |
74d83fa0 MCC |
1899 | break; |
1900 | case V4L2_FRMIVAL_TYPE_CONTINUOUS: | |
1901 | dbgarg2("continuous\n"); | |
1902 | break; | |
1903 | default: | |
1904 | dbgarg2("- Unknown type!\n"); | |
1905 | } | |
1906 | break; | |
1907 | } | |
b6456c0c MK |
1908 | case VIDIOC_ENUM_DV_PRESETS: |
1909 | { | |
1910 | struct v4l2_dv_enum_preset *p = arg; | |
1911 | ||
b6456c0c MK |
1912 | ret = ops->vidioc_enum_dv_presets(file, fh, p); |
1913 | if (!ret) | |
1914 | dbgarg(cmd, | |
1915 | "index=%d, preset=%d, name=%s, width=%d," | |
1916 | " height=%d ", | |
1917 | p->index, p->preset, p->name, p->width, | |
1918 | p->height); | |
1919 | break; | |
1920 | } | |
1921 | case VIDIOC_S_DV_PRESET: | |
1922 | { | |
1923 | struct v4l2_dv_preset *p = arg; | |
1924 | ||
b6456c0c MK |
1925 | dbgarg(cmd, "preset=%d\n", p->preset); |
1926 | ret = ops->vidioc_s_dv_preset(file, fh, p); | |
1927 | break; | |
1928 | } | |
1929 | case VIDIOC_G_DV_PRESET: | |
1930 | { | |
1931 | struct v4l2_dv_preset *p = arg; | |
1932 | ||
b6456c0c MK |
1933 | ret = ops->vidioc_g_dv_preset(file, fh, p); |
1934 | if (!ret) | |
1935 | dbgarg(cmd, "preset=%d\n", p->preset); | |
1936 | break; | |
1937 | } | |
1938 | case VIDIOC_QUERY_DV_PRESET: | |
1939 | { | |
1940 | struct v4l2_dv_preset *p = arg; | |
1941 | ||
b6456c0c MK |
1942 | ret = ops->vidioc_query_dv_preset(file, fh, p); |
1943 | if (!ret) | |
1944 | dbgarg(cmd, "preset=%d\n", p->preset); | |
1945 | break; | |
1946 | } | |
1947 | case VIDIOC_S_DV_TIMINGS: | |
1948 | { | |
1949 | struct v4l2_dv_timings *p = arg; | |
1950 | ||
5d7758ee | 1951 | dbgtimings(vfd, p); |
b6456c0c MK |
1952 | switch (p->type) { |
1953 | case V4L2_DV_BT_656_1120: | |
b6456c0c MK |
1954 | ret = ops->vidioc_s_dv_timings(file, fh, p); |
1955 | break; | |
1956 | default: | |
5d7758ee | 1957 | ret = -EINVAL; |
b6456c0c MK |
1958 | break; |
1959 | } | |
1960 | break; | |
1961 | } | |
1962 | case VIDIOC_G_DV_TIMINGS: | |
1963 | { | |
1964 | struct v4l2_dv_timings *p = arg; | |
1965 | ||
b6456c0c | 1966 | ret = ops->vidioc_g_dv_timings(file, fh, p); |
5d7758ee HV |
1967 | if (!ret) |
1968 | dbgtimings(vfd, p); | |
1969 | break; | |
1970 | } | |
1971 | case VIDIOC_ENUM_DV_TIMINGS: | |
1972 | { | |
1973 | struct v4l2_enum_dv_timings *p = arg; | |
1974 | ||
1975 | if (!ops->vidioc_enum_dv_timings) | |
1976 | break; | |
1977 | ||
1978 | ret = ops->vidioc_enum_dv_timings(file, fh, p); | |
b6456c0c | 1979 | if (!ret) { |
5d7758ee HV |
1980 | dbgarg(cmd, "index=%d: ", p->index); |
1981 | dbgtimings(vfd, &p->timings); | |
1982 | } | |
1983 | break; | |
1984 | } | |
1985 | case VIDIOC_QUERY_DV_TIMINGS: | |
1986 | { | |
1987 | struct v4l2_dv_timings *p = arg; | |
1988 | ||
1989 | if (!ops->vidioc_query_dv_timings) | |
1990 | break; | |
1991 | ||
1992 | ret = ops->vidioc_query_dv_timings(file, fh, p); | |
1993 | if (!ret) | |
1994 | dbgtimings(vfd, p); | |
1995 | break; | |
1996 | } | |
1997 | case VIDIOC_DV_TIMINGS_CAP: | |
1998 | { | |
1999 | struct v4l2_dv_timings_cap *p = arg; | |
2000 | ||
2001 | if (!ops->vidioc_dv_timings_cap) | |
2002 | break; | |
2003 | ||
2004 | ret = ops->vidioc_dv_timings_cap(file, fh, p); | |
2005 | if (ret) | |
2006 | break; | |
2007 | switch (p->type) { | |
2008 | case V4L2_DV_BT_656_1120: | |
2009 | dbgarg(cmd, | |
2010 | "type=%d, width=%u-%u, height=%u-%u, " | |
2011 | "pixelclock=%llu-%llu, standards=%x, capabilities=%x ", | |
2012 | p->type, | |
2013 | p->bt.min_width, p->bt.max_width, | |
2014 | p->bt.min_height, p->bt.max_height, | |
2015 | p->bt.min_pixelclock, p->bt.max_pixelclock, | |
2016 | p->bt.standards, p->bt.capabilities); | |
2017 | break; | |
2018 | default: | |
2019 | dbgarg(cmd, "unknown type "); | |
2020 | break; | |
b6456c0c MK |
2021 | } |
2022 | break; | |
2023 | } | |
d3d7c963 SA |
2024 | case VIDIOC_DQEVENT: |
2025 | { | |
2026 | struct v4l2_event *ev = arg; | |
2027 | ||
d3d7c963 SA |
2028 | ret = v4l2_event_dequeue(fh, ev, file->f_flags & O_NONBLOCK); |
2029 | if (ret < 0) { | |
2030 | dbgarg(cmd, "no pending events?"); | |
2031 | break; | |
2032 | } | |
2033 | dbgarg(cmd, | |
2034 | "pending=%d, type=0x%8.8x, sequence=%d, " | |
2035 | "timestamp=%lu.%9.9lu ", | |
2036 | ev->pending, ev->type, ev->sequence, | |
2037 | ev->timestamp.tv_sec, ev->timestamp.tv_nsec); | |
2038 | break; | |
2039 | } | |
2040 | case VIDIOC_SUBSCRIBE_EVENT: | |
2041 | { | |
2042 | struct v4l2_event_subscription *sub = arg; | |
2043 | ||
d3d7c963 SA |
2044 | ret = ops->vidioc_subscribe_event(fh, sub); |
2045 | if (ret < 0) { | |
2046 | dbgarg(cmd, "failed, ret=%ld", ret); | |
2047 | break; | |
2048 | } | |
2049 | dbgarg(cmd, "type=0x%8.8x", sub->type); | |
2050 | break; | |
2051 | } | |
2052 | case VIDIOC_UNSUBSCRIBE_EVENT: | |
2053 | { | |
2054 | struct v4l2_event_subscription *sub = arg; | |
2055 | ||
d3d7c963 SA |
2056 | ret = ops->vidioc_unsubscribe_event(fh, sub); |
2057 | if (ret < 0) { | |
2058 | dbgarg(cmd, "failed, ret=%ld", ret); | |
2059 | break; | |
2060 | } | |
2061 | dbgarg(cmd, "type=0x%8.8x", sub->type); | |
2062 | break; | |
2063 | } | |
2150158b GL |
2064 | case VIDIOC_CREATE_BUFS: |
2065 | { | |
2066 | struct v4l2_create_buffers *create = arg; | |
2067 | ||
2150158b GL |
2068 | ret = check_fmt(ops, create->format.type); |
2069 | if (ret) | |
2070 | break; | |
2071 | ||
2072 | ret = ops->vidioc_create_bufs(file, fh, create); | |
2073 | ||
2074 | dbgarg(cmd, "count=%d @ %d\n", create->count, create->index); | |
2075 | break; | |
2076 | } | |
2077 | case VIDIOC_PREPARE_BUF: | |
2078 | { | |
2079 | struct v4l2_buffer *b = arg; | |
2080 | ||
2150158b GL |
2081 | ret = check_fmt(ops, b->type); |
2082 | if (ret) | |
2083 | break; | |
2084 | ||
2085 | ret = ops->vidioc_prepare_buf(file, fh, b); | |
2086 | ||
2087 | dbgarg(cmd, "index=%d", b->index); | |
2088 | break; | |
2089 | } | |
a399810c | 2090 | default: |
a399810c HV |
2091 | if (!ops->vidioc_default) |
2092 | break; | |
4b902fec HV |
2093 | ret = ops->vidioc_default(file, fh, use_fh_prio ? |
2094 | v4l2_prio_check(vfd->prio, vfh->prio) >= 0 : 0, | |
2095 | cmd, arg); | |
35ea11ff | 2096 | break; |
35ea11ff HV |
2097 | } /* switch */ |
2098 | ||
2099 | if (vfd->debug & V4L2_DEBUG_IOCTL_ARG) { | |
2100 | if (ret < 0) { | |
2101 | v4l_print_ioctl(vfd->name, cmd); | |
069b7479 | 2102 | printk(KERN_CONT " error %ld\n", ret); |
35ea11ff HV |
2103 | } |
2104 | } | |
2105 | ||
2106 | return ret; | |
2107 | } | |
2108 | ||
19c96e4b TP |
2109 | /* In some cases, only a few fields are used as input, i.e. when the app sets |
2110 | * "index" and then the driver fills in the rest of the structure for the thing | |
2111 | * with that index. We only need to copy up the first non-input field. */ | |
2112 | static unsigned long cmd_input_size(unsigned int cmd) | |
2113 | { | |
2114 | /* Size of structure up to and including 'field' */ | |
9f1a693f HV |
2115 | #define CMDINSIZE(cmd, type, field) \ |
2116 | case VIDIOC_##cmd: \ | |
2117 | return offsetof(struct v4l2_##type, field) + \ | |
2118 | sizeof(((struct v4l2_##type *)0)->field); | |
19c96e4b | 2119 | |
9f1a693f | 2120 | switch (cmd) { |
19c96e4b TP |
2121 | CMDINSIZE(ENUM_FMT, fmtdesc, type); |
2122 | CMDINSIZE(G_FMT, format, type); | |
d14e6d76 | 2123 | CMDINSIZE(QUERYBUF, buffer, length); |
19c96e4b TP |
2124 | CMDINSIZE(G_PARM, streamparm, type); |
2125 | CMDINSIZE(ENUMSTD, standard, index); | |
2126 | CMDINSIZE(ENUMINPUT, input, index); | |
2127 | CMDINSIZE(G_CTRL, control, id); | |
2128 | CMDINSIZE(G_TUNER, tuner, index); | |
2129 | CMDINSIZE(QUERYCTRL, queryctrl, id); | |
2130 | CMDINSIZE(QUERYMENU, querymenu, index); | |
2131 | CMDINSIZE(ENUMOUTPUT, output, index); | |
2132 | CMDINSIZE(G_MODULATOR, modulator, index); | |
2133 | CMDINSIZE(G_FREQUENCY, frequency, tuner); | |
2134 | CMDINSIZE(CROPCAP, cropcap, type); | |
2135 | CMDINSIZE(G_CROP, crop, type); | |
2136 | CMDINSIZE(ENUMAUDIO, audio, index); | |
2137 | CMDINSIZE(ENUMAUDOUT, audioout, index); | |
2138 | CMDINSIZE(ENCODER_CMD, encoder_cmd, flags); | |
2139 | CMDINSIZE(TRY_ENCODER_CMD, encoder_cmd, flags); | |
2140 | CMDINSIZE(G_SLICED_VBI_CAP, sliced_vbi_cap, type); | |
2141 | CMDINSIZE(ENUM_FRAMESIZES, frmsizeenum, pixel_format); | |
2142 | CMDINSIZE(ENUM_FRAMEINTERVALS, frmivalenum, height); | |
2143 | default: | |
2144 | return _IOC_SIZE(cmd); | |
2145 | } | |
2146 | } | |
2147 | ||
d14e6d76 PO |
2148 | static int check_array_args(unsigned int cmd, void *parg, size_t *array_size, |
2149 | void * __user *user_ptr, void ***kernel_ptr) | |
2150 | { | |
2151 | int ret = 0; | |
2152 | ||
2153 | switch (cmd) { | |
2154 | case VIDIOC_QUERYBUF: | |
2155 | case VIDIOC_QBUF: | |
2156 | case VIDIOC_DQBUF: { | |
2157 | struct v4l2_buffer *buf = parg; | |
2158 | ||
2159 | if (V4L2_TYPE_IS_MULTIPLANAR(buf->type) && buf->length > 0) { | |
2160 | if (buf->length > VIDEO_MAX_PLANES) { | |
2161 | ret = -EINVAL; | |
2162 | break; | |
2163 | } | |
2164 | *user_ptr = (void __user *)buf->m.planes; | |
2ef40370 | 2165 | *kernel_ptr = (void *)&buf->m.planes; |
d14e6d76 PO |
2166 | *array_size = sizeof(struct v4l2_plane) * buf->length; |
2167 | ret = 1; | |
2168 | } | |
2169 | break; | |
2170 | } | |
2171 | ||
2172 | case VIDIOC_S_EXT_CTRLS: | |
2173 | case VIDIOC_G_EXT_CTRLS: | |
2174 | case VIDIOC_TRY_EXT_CTRLS: { | |
2175 | struct v4l2_ext_controls *ctrls = parg; | |
2176 | ||
2177 | if (ctrls->count != 0) { | |
6c06108b DC |
2178 | if (ctrls->count > V4L2_CID_MAX_CTRLS) { |
2179 | ret = -EINVAL; | |
2180 | break; | |
2181 | } | |
d14e6d76 | 2182 | *user_ptr = (void __user *)ctrls->controls; |
2ef40370 | 2183 | *kernel_ptr = (void *)&ctrls->controls; |
d14e6d76 PO |
2184 | *array_size = sizeof(struct v4l2_ext_control) |
2185 | * ctrls->count; | |
2186 | ret = 1; | |
2187 | } | |
2188 | break; | |
2189 | } | |
2190 | } | |
2191 | ||
2192 | return ret; | |
2193 | } | |
2194 | ||
fc0a8079 LP |
2195 | long |
2196 | video_usercopy(struct file *file, unsigned int cmd, unsigned long arg, | |
2197 | v4l2_kioctl func) | |
35ea11ff HV |
2198 | { |
2199 | char sbuf[128]; | |
2200 | void *mbuf = NULL; | |
1d94aa36 | 2201 | void *parg = (void *)arg; |
069b7479 | 2202 | long err = -EINVAL; |
d14e6d76 PO |
2203 | bool has_array_args; |
2204 | size_t array_size = 0; | |
35ea11ff | 2205 | void __user *user_ptr = NULL; |
d14e6d76 | 2206 | void **kernel_ptr = NULL; |
35ea11ff | 2207 | |
35ea11ff | 2208 | /* Copy arguments into temp kernel buffer */ |
337f9d20 | 2209 | if (_IOC_DIR(cmd) != _IOC_NONE) { |
35ea11ff HV |
2210 | if (_IOC_SIZE(cmd) <= sizeof(sbuf)) { |
2211 | parg = sbuf; | |
2212 | } else { | |
2213 | /* too big to allocate from stack */ | |
2214 | mbuf = kmalloc(_IOC_SIZE(cmd), GFP_KERNEL); | |
2215 | if (NULL == mbuf) | |
2216 | return -ENOMEM; | |
2217 | parg = mbuf; | |
2218 | } | |
2219 | ||
2220 | err = -EFAULT; | |
19c96e4b TP |
2221 | if (_IOC_DIR(cmd) & _IOC_WRITE) { |
2222 | unsigned long n = cmd_input_size(cmd); | |
2223 | ||
2224 | if (copy_from_user(parg, (void __user *)arg, n)) | |
35ea11ff | 2225 | goto out; |
19c96e4b TP |
2226 | |
2227 | /* zero out anything we don't copy from userspace */ | |
2228 | if (n < _IOC_SIZE(cmd)) | |
2229 | memset((u8 *)parg + n, 0, _IOC_SIZE(cmd) - n); | |
337f9d20 TP |
2230 | } else { |
2231 | /* read-only ioctl */ | |
2232 | memset(parg, 0, _IOC_SIZE(cmd)); | |
19c96e4b | 2233 | } |
35ea11ff HV |
2234 | } |
2235 | ||
d14e6d76 PO |
2236 | err = check_array_args(cmd, parg, &array_size, &user_ptr, &kernel_ptr); |
2237 | if (err < 0) | |
2238 | goto out; | |
2239 | has_array_args = err; | |
35ea11ff | 2240 | |
d14e6d76 PO |
2241 | if (has_array_args) { |
2242 | /* | |
2243 | * When adding new types of array args, make sure that the | |
2244 | * parent argument to ioctl (which contains the pointer to the | |
2245 | * array) fits into sbuf (so that mbuf will still remain | |
2246 | * unused up to here). | |
2247 | */ | |
2248 | mbuf = kmalloc(array_size, GFP_KERNEL); | |
2249 | err = -ENOMEM; | |
2250 | if (NULL == mbuf) | |
2251 | goto out_array_args; | |
2252 | err = -EFAULT; | |
2253 | if (copy_from_user(mbuf, user_ptr, array_size)) | |
2254 | goto out_array_args; | |
2255 | *kernel_ptr = mbuf; | |
35ea11ff HV |
2256 | } |
2257 | ||
2258 | /* Handles IOCTL */ | |
fc0a8079 | 2259 | err = func(file, cmd, parg); |
35ea11ff | 2260 | if (err == -ENOIOCTLCMD) |
02bbb814 | 2261 | err = -ENOTTY; |
35ea11ff | 2262 | |
d14e6d76 PO |
2263 | if (has_array_args) { |
2264 | *kernel_ptr = user_ptr; | |
2265 | if (copy_to_user(user_ptr, mbuf, array_size)) | |
35ea11ff | 2266 | err = -EFAULT; |
d14e6d76 | 2267 | goto out_array_args; |
35ea11ff | 2268 | } |
5d7758ee HV |
2269 | /* VIDIOC_QUERY_DV_TIMINGS can return an error, but still have valid |
2270 | results that must be returned. */ | |
2271 | if (err < 0 && cmd != VIDIOC_QUERY_DV_TIMINGS) | |
35ea11ff HV |
2272 | goto out; |
2273 | ||
d14e6d76 | 2274 | out_array_args: |
35ea11ff HV |
2275 | /* Copy results into user buffer */ |
2276 | switch (_IOC_DIR(cmd)) { | |
2277 | case _IOC_READ: | |
2278 | case (_IOC_WRITE | _IOC_READ): | |
2279 | if (copy_to_user((void __user *)arg, parg, _IOC_SIZE(cmd))) | |
2280 | err = -EFAULT; | |
2281 | break; | |
2282 | } | |
2283 | ||
2284 | out: | |
2285 | kfree(mbuf); | |
2286 | return err; | |
2287 | } | |
fc0a8079 LP |
2288 | EXPORT_SYMBOL(video_usercopy); |
2289 | ||
2290 | long video_ioctl2(struct file *file, | |
2291 | unsigned int cmd, unsigned long arg) | |
2292 | { | |
2293 | return video_usercopy(file, cmd, arg, __video_do_ioctl); | |
2294 | } | |
8a522c91 | 2295 | EXPORT_SYMBOL(video_ioctl2); |