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 | 185 | |
35ea11ff HV |
186 | static void dbgbuf(unsigned int cmd, struct video_device *vfd, |
187 | struct v4l2_buffer *p) | |
188 | { | |
189 | struct v4l2_timecode *tc = &p->timecode; | |
d14e6d76 PO |
190 | struct v4l2_plane *plane; |
191 | int i; | |
35ea11ff HV |
192 | |
193 | dbgarg(cmd, "%02ld:%02d:%02d.%08ld index=%d, type=%s, " | |
d14e6d76 | 194 | "flags=0x%08d, field=%0d, sequence=%d, memory=%s\n", |
35ea11ff HV |
195 | p->timestamp.tv_sec / 3600, |
196 | (int)(p->timestamp.tv_sec / 60) % 60, | |
197 | (int)(p->timestamp.tv_sec % 60), | |
b045979d | 198 | (long)p->timestamp.tv_usec, |
35ea11ff HV |
199 | p->index, |
200 | prt_names(p->type, v4l2_type_names), | |
d14e6d76 PO |
201 | p->flags, p->field, p->sequence, |
202 | prt_names(p->memory, v4l2_memory_names)); | |
203 | ||
204 | if (V4L2_TYPE_IS_MULTIPLANAR(p->type) && p->m.planes) { | |
205 | for (i = 0; i < p->length; ++i) { | |
206 | plane = &p->m.planes[i]; | |
207 | dbgarg2("plane %d: bytesused=%d, data_offset=0x%08x " | |
208 | "offset/userptr=0x%08lx, length=%d\n", | |
209 | i, plane->bytesused, plane->data_offset, | |
210 | plane->m.userptr, plane->length); | |
211 | } | |
212 | } else { | |
213 | dbgarg2("bytesused=%d, offset/userptr=0x%08lx, length=%d\n", | |
214 | p->bytesused, p->m.userptr, p->length); | |
215 | } | |
216 | ||
35ea11ff HV |
217 | dbgarg2("timecode=%02d:%02d:%02d type=%d, " |
218 | "flags=0x%08d, frames=%d, userbits=0x%08x\n", | |
219 | tc->hours, tc->minutes, tc->seconds, | |
220 | tc->type, tc->flags, tc->frames, *(__u32 *)tc->userbits); | |
221 | } | |
222 | ||
223 | static inline void dbgrect(struct video_device *vfd, char *s, | |
224 | struct v4l2_rect *r) | |
225 | { | |
226 | dbgarg2("%sRect start at %dx%d, size=%dx%d\n", s, r->left, r->top, | |
227 | r->width, r->height); | |
228 | }; | |
229 | ||
5d7758ee HV |
230 | static void dbgtimings(struct video_device *vfd, |
231 | const struct v4l2_dv_timings *p) | |
232 | { | |
233 | switch (p->type) { | |
234 | case V4L2_DV_BT_656_1120: | |
235 | dbgarg2("bt-656/1120:interlaced=%d," | |
236 | " pixelclock=%lld," | |
237 | " width=%d, height=%d, polarities=%x," | |
238 | " hfrontporch=%d, hsync=%d," | |
239 | " hbackporch=%d, vfrontporch=%d," | |
240 | " vsync=%d, vbackporch=%d," | |
241 | " il_vfrontporch=%d, il_vsync=%d," | |
242 | " il_vbackporch=%d, standards=%x, flags=%x\n", | |
243 | p->bt.interlaced, p->bt.pixelclock, | |
244 | p->bt.width, p->bt.height, | |
245 | p->bt.polarities, p->bt.hfrontporch, | |
246 | p->bt.hsync, p->bt.hbackporch, | |
247 | p->bt.vfrontporch, p->bt.vsync, | |
248 | p->bt.vbackporch, p->bt.il_vfrontporch, | |
249 | p->bt.il_vsync, p->bt.il_vbackporch, | |
250 | p->bt.standards, p->bt.flags); | |
251 | break; | |
252 | default: | |
253 | dbgarg2("Unknown type %d!\n", p->type); | |
254 | break; | |
255 | } | |
256 | } | |
257 | ||
35ea11ff HV |
258 | static inline void v4l_print_pix_fmt(struct video_device *vfd, |
259 | struct v4l2_pix_format *fmt) | |
260 | { | |
261 | dbgarg2("width=%d, height=%d, format=%c%c%c%c, field=%s, " | |
262 | "bytesperline=%d sizeimage=%d, colorspace=%d\n", | |
263 | fmt->width, fmt->height, | |
264 | (fmt->pixelformat & 0xff), | |
265 | (fmt->pixelformat >> 8) & 0xff, | |
266 | (fmt->pixelformat >> 16) & 0xff, | |
267 | (fmt->pixelformat >> 24) & 0xff, | |
268 | prt_names(fmt->field, v4l2_field_names), | |
269 | fmt->bytesperline, fmt->sizeimage, fmt->colorspace); | |
270 | }; | |
271 | ||
d14e6d76 PO |
272 | static inline void v4l_print_pix_fmt_mplane(struct video_device *vfd, |
273 | struct v4l2_pix_format_mplane *fmt) | |
274 | { | |
275 | int i; | |
276 | ||
277 | dbgarg2("width=%d, height=%d, format=%c%c%c%c, field=%s, " | |
278 | "colorspace=%d, num_planes=%d\n", | |
279 | fmt->width, fmt->height, | |
280 | (fmt->pixelformat & 0xff), | |
281 | (fmt->pixelformat >> 8) & 0xff, | |
282 | (fmt->pixelformat >> 16) & 0xff, | |
283 | (fmt->pixelformat >> 24) & 0xff, | |
284 | prt_names(fmt->field, v4l2_field_names), | |
285 | fmt->colorspace, fmt->num_planes); | |
286 | ||
287 | for (i = 0; i < fmt->num_planes; ++i) | |
288 | dbgarg2("plane %d: bytesperline=%d sizeimage=%d\n", i, | |
289 | fmt->plane_fmt[i].bytesperline, | |
290 | fmt->plane_fmt[i].sizeimage); | |
291 | } | |
292 | ||
35ea11ff HV |
293 | static inline void v4l_print_ext_ctrls(unsigned int cmd, |
294 | struct video_device *vfd, struct v4l2_ext_controls *c, int show_vals) | |
295 | { | |
296 | __u32 i; | |
297 | ||
298 | if (!(vfd->debug & V4L2_DEBUG_IOCTL_ARG)) | |
299 | return; | |
300 | dbgarg(cmd, ""); | |
301 | printk(KERN_CONT "class=0x%x", c->ctrl_class); | |
302 | for (i = 0; i < c->count; i++) { | |
6b5a9492 | 303 | if (show_vals && !c->controls[i].size) |
35ea11ff HV |
304 | printk(KERN_CONT " id/val=0x%x/0x%x", |
305 | c->controls[i].id, c->controls[i].value); | |
306 | else | |
6b5a9492 HV |
307 | printk(KERN_CONT " id=0x%x,size=%u", |
308 | c->controls[i].id, c->controls[i].size); | |
35ea11ff HV |
309 | } |
310 | printk(KERN_CONT "\n"); | |
311 | }; | |
312 | ||
313 | static inline int check_ext_ctrls(struct v4l2_ext_controls *c, int allow_priv) | |
314 | { | |
315 | __u32 i; | |
316 | ||
317 | /* zero the reserved fields */ | |
318 | c->reserved[0] = c->reserved[1] = 0; | |
6b5a9492 | 319 | for (i = 0; i < c->count; i++) |
35ea11ff | 320 | c->controls[i].reserved2[0] = 0; |
6b5a9492 | 321 | |
35ea11ff HV |
322 | /* V4L2_CID_PRIVATE_BASE cannot be used as control class |
323 | when using extended controls. | |
324 | Only when passed in through VIDIOC_G_CTRL and VIDIOC_S_CTRL | |
325 | is it allowed for backwards compatibility. | |
326 | */ | |
327 | if (!allow_priv && c->ctrl_class == V4L2_CID_PRIVATE_BASE) | |
328 | return 0; | |
329 | /* Check that all controls are from the same control class. */ | |
330 | for (i = 0; i < c->count; i++) { | |
331 | if (V4L2_CTRL_ID2CLASS(c->controls[i].id) != c->ctrl_class) { | |
332 | c->error_idx = i; | |
333 | return 0; | |
334 | } | |
335 | } | |
336 | return 1; | |
337 | } | |
338 | ||
a399810c | 339 | static int check_fmt(const struct v4l2_ioctl_ops *ops, enum v4l2_buf_type type) |
35ea11ff | 340 | { |
a399810c HV |
341 | if (ops == NULL) |
342 | return -EINVAL; | |
343 | ||
35ea11ff HV |
344 | switch (type) { |
345 | case V4L2_BUF_TYPE_VIDEO_CAPTURE: | |
d14e6d76 PO |
346 | if (ops->vidioc_g_fmt_vid_cap || |
347 | ops->vidioc_g_fmt_vid_cap_mplane) | |
348 | return 0; | |
349 | break; | |
350 | case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE: | |
351 | if (ops->vidioc_g_fmt_vid_cap_mplane) | |
35ea11ff HV |
352 | return 0; |
353 | break; | |
354 | case V4L2_BUF_TYPE_VIDEO_OVERLAY: | |
1175d613 | 355 | if (ops->vidioc_g_fmt_vid_overlay) |
35ea11ff HV |
356 | return 0; |
357 | break; | |
358 | case V4L2_BUF_TYPE_VIDEO_OUTPUT: | |
d14e6d76 PO |
359 | if (ops->vidioc_g_fmt_vid_out || |
360 | ops->vidioc_g_fmt_vid_out_mplane) | |
361 | return 0; | |
362 | break; | |
363 | case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE: | |
364 | if (ops->vidioc_g_fmt_vid_out_mplane) | |
35ea11ff HV |
365 | return 0; |
366 | break; | |
367 | case V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY: | |
1175d613 | 368 | if (ops->vidioc_g_fmt_vid_out_overlay) |
35ea11ff HV |
369 | return 0; |
370 | break; | |
371 | case V4L2_BUF_TYPE_VBI_CAPTURE: | |
1175d613 | 372 | if (ops->vidioc_g_fmt_vbi_cap) |
35ea11ff HV |
373 | return 0; |
374 | break; | |
375 | case V4L2_BUF_TYPE_VBI_OUTPUT: | |
1175d613 | 376 | if (ops->vidioc_g_fmt_vbi_out) |
35ea11ff HV |
377 | return 0; |
378 | break; | |
379 | case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE: | |
1175d613 | 380 | if (ops->vidioc_g_fmt_sliced_vbi_cap) |
35ea11ff HV |
381 | return 0; |
382 | break; | |
383 | case V4L2_BUF_TYPE_SLICED_VBI_OUTPUT: | |
1175d613 | 384 | if (ops->vidioc_g_fmt_sliced_vbi_out) |
35ea11ff HV |
385 | return 0; |
386 | break; | |
387 | case V4L2_BUF_TYPE_PRIVATE: | |
1175d613 | 388 | if (ops->vidioc_g_fmt_type_private) |
35ea11ff HV |
389 | return 0; |
390 | break; | |
391 | } | |
392 | return -EINVAL; | |
393 | } | |
394 | ||
4839e6c2 HV |
395 | struct v4l2_ioctl_info { |
396 | unsigned int ioctl; | |
27cd2aba | 397 | u32 flags; |
4839e6c2 HV |
398 | const char * const name; |
399 | }; | |
400 | ||
401 | /* This control needs a priority check */ | |
402 | #define INFO_FL_PRIO (1 << 0) | |
403 | /* This control can be valid if the filehandle passes a control handler. */ | |
404 | #define INFO_FL_CTRL (1 << 1) | |
27cd2aba HV |
405 | /* Zero struct from after the field to the end */ |
406 | #define INFO_FL_CLEAR(v4l2_struct, field) \ | |
407 | ((offsetof(struct v4l2_struct, field) + \ | |
408 | sizeof(((struct v4l2_struct *)0)->field)) << 16) | |
409 | #define INFO_FL_CLEAR_MASK (_IOC_SIZEMASK << 16) | |
4839e6c2 HV |
410 | |
411 | #define IOCTL_INFO(_ioctl, _flags) [_IOC_NR(_ioctl)] = { \ | |
412 | .ioctl = _ioctl, \ | |
413 | .flags = _flags, \ | |
414 | .name = #_ioctl, \ | |
415 | } | |
416 | ||
417 | static struct v4l2_ioctl_info v4l2_ioctls[] = { | |
418 | IOCTL_INFO(VIDIOC_QUERYCAP, 0), | |
27cd2aba HV |
419 | IOCTL_INFO(VIDIOC_ENUM_FMT, INFO_FL_CLEAR(v4l2_fmtdesc, type)), |
420 | IOCTL_INFO(VIDIOC_G_FMT, INFO_FL_CLEAR(v4l2_format, type)), | |
4839e6c2 HV |
421 | IOCTL_INFO(VIDIOC_S_FMT, INFO_FL_PRIO), |
422 | IOCTL_INFO(VIDIOC_REQBUFS, INFO_FL_PRIO), | |
27cd2aba | 423 | IOCTL_INFO(VIDIOC_QUERYBUF, INFO_FL_CLEAR(v4l2_buffer, length)), |
4839e6c2 HV |
424 | IOCTL_INFO(VIDIOC_G_FBUF, 0), |
425 | IOCTL_INFO(VIDIOC_S_FBUF, INFO_FL_PRIO), | |
426 | IOCTL_INFO(VIDIOC_OVERLAY, INFO_FL_PRIO), | |
427 | IOCTL_INFO(VIDIOC_QBUF, 0), | |
428 | IOCTL_INFO(VIDIOC_DQBUF, 0), | |
429 | IOCTL_INFO(VIDIOC_STREAMON, INFO_FL_PRIO), | |
430 | IOCTL_INFO(VIDIOC_STREAMOFF, INFO_FL_PRIO), | |
27cd2aba | 431 | IOCTL_INFO(VIDIOC_G_PARM, INFO_FL_CLEAR(v4l2_streamparm, type)), |
4839e6c2 HV |
432 | IOCTL_INFO(VIDIOC_S_PARM, INFO_FL_PRIO), |
433 | IOCTL_INFO(VIDIOC_G_STD, 0), | |
434 | IOCTL_INFO(VIDIOC_S_STD, INFO_FL_PRIO), | |
27cd2aba HV |
435 | IOCTL_INFO(VIDIOC_ENUMSTD, INFO_FL_CLEAR(v4l2_standard, index)), |
436 | IOCTL_INFO(VIDIOC_ENUMINPUT, INFO_FL_CLEAR(v4l2_input, index)), | |
4839e6c2 HV |
437 | IOCTL_INFO(VIDIOC_G_CTRL, INFO_FL_CTRL), |
438 | IOCTL_INFO(VIDIOC_S_CTRL, INFO_FL_PRIO | INFO_FL_CTRL), | |
27cd2aba | 439 | IOCTL_INFO(VIDIOC_G_TUNER, INFO_FL_CLEAR(v4l2_tuner, index)), |
4839e6c2 HV |
440 | IOCTL_INFO(VIDIOC_S_TUNER, INFO_FL_PRIO), |
441 | IOCTL_INFO(VIDIOC_G_AUDIO, 0), | |
442 | IOCTL_INFO(VIDIOC_S_AUDIO, INFO_FL_PRIO), | |
27cd2aba HV |
443 | IOCTL_INFO(VIDIOC_QUERYCTRL, INFO_FL_CTRL | INFO_FL_CLEAR(v4l2_queryctrl, id)), |
444 | IOCTL_INFO(VIDIOC_QUERYMENU, INFO_FL_CTRL | INFO_FL_CLEAR(v4l2_querymenu, index)), | |
4839e6c2 HV |
445 | IOCTL_INFO(VIDIOC_G_INPUT, 0), |
446 | IOCTL_INFO(VIDIOC_S_INPUT, INFO_FL_PRIO), | |
27cd2aba | 447 | IOCTL_INFO(VIDIOC_G_OUTPUT, INFO_FL_CLEAR(v4l2_output, index)), |
4839e6c2 HV |
448 | IOCTL_INFO(VIDIOC_S_OUTPUT, INFO_FL_PRIO), |
449 | IOCTL_INFO(VIDIOC_ENUMOUTPUT, 0), | |
450 | IOCTL_INFO(VIDIOC_G_AUDOUT, 0), | |
451 | IOCTL_INFO(VIDIOC_S_AUDOUT, INFO_FL_PRIO), | |
27cd2aba | 452 | IOCTL_INFO(VIDIOC_G_MODULATOR, INFO_FL_CLEAR(v4l2_modulator, index)), |
4839e6c2 | 453 | IOCTL_INFO(VIDIOC_S_MODULATOR, INFO_FL_PRIO), |
27cd2aba | 454 | IOCTL_INFO(VIDIOC_G_FREQUENCY, INFO_FL_CLEAR(v4l2_frequency, tuner)), |
4839e6c2 | 455 | IOCTL_INFO(VIDIOC_S_FREQUENCY, INFO_FL_PRIO), |
27cd2aba HV |
456 | IOCTL_INFO(VIDIOC_CROPCAP, INFO_FL_CLEAR(v4l2_cropcap, type)), |
457 | IOCTL_INFO(VIDIOC_G_CROP, INFO_FL_CLEAR(v4l2_crop, type)), | |
4839e6c2 HV |
458 | IOCTL_INFO(VIDIOC_S_CROP, INFO_FL_PRIO), |
459 | IOCTL_INFO(VIDIOC_G_SELECTION, 0), | |
460 | IOCTL_INFO(VIDIOC_S_SELECTION, INFO_FL_PRIO), | |
461 | IOCTL_INFO(VIDIOC_G_JPEGCOMP, 0), | |
462 | IOCTL_INFO(VIDIOC_S_JPEGCOMP, INFO_FL_PRIO), | |
463 | IOCTL_INFO(VIDIOC_QUERYSTD, 0), | |
464 | IOCTL_INFO(VIDIOC_TRY_FMT, 0), | |
27cd2aba HV |
465 | IOCTL_INFO(VIDIOC_ENUMAUDIO, INFO_FL_CLEAR(v4l2_audio, index)), |
466 | IOCTL_INFO(VIDIOC_ENUMAUDOUT, INFO_FL_CLEAR(v4l2_audioout, index)), | |
4839e6c2 HV |
467 | IOCTL_INFO(VIDIOC_G_PRIORITY, 0), |
468 | IOCTL_INFO(VIDIOC_S_PRIORITY, INFO_FL_PRIO), | |
27cd2aba | 469 | IOCTL_INFO(VIDIOC_G_SLICED_VBI_CAP, INFO_FL_CLEAR(v4l2_sliced_vbi_cap, type)), |
4839e6c2 HV |
470 | IOCTL_INFO(VIDIOC_LOG_STATUS, 0), |
471 | IOCTL_INFO(VIDIOC_G_EXT_CTRLS, INFO_FL_CTRL), | |
472 | IOCTL_INFO(VIDIOC_S_EXT_CTRLS, INFO_FL_PRIO | INFO_FL_CTRL), | |
473 | IOCTL_INFO(VIDIOC_TRY_EXT_CTRLS, 0), | |
27cd2aba HV |
474 | IOCTL_INFO(VIDIOC_ENUM_FRAMESIZES, INFO_FL_CLEAR(v4l2_frmsizeenum, pixel_format)), |
475 | IOCTL_INFO(VIDIOC_ENUM_FRAMEINTERVALS, INFO_FL_CLEAR(v4l2_frmivalenum, height)), | |
4839e6c2 | 476 | IOCTL_INFO(VIDIOC_G_ENC_INDEX, 0), |
27cd2aba HV |
477 | IOCTL_INFO(VIDIOC_ENCODER_CMD, INFO_FL_PRIO | INFO_FL_CLEAR(v4l2_encoder_cmd, flags)), |
478 | IOCTL_INFO(VIDIOC_TRY_ENCODER_CMD, INFO_FL_CLEAR(v4l2_encoder_cmd, flags)), | |
4839e6c2 HV |
479 | IOCTL_INFO(VIDIOC_DECODER_CMD, INFO_FL_PRIO), |
480 | IOCTL_INFO(VIDIOC_TRY_DECODER_CMD, 0), | |
481 | #ifdef CONFIG_VIDEO_ADV_DEBUG | |
482 | IOCTL_INFO(VIDIOC_DBG_S_REGISTER, 0), | |
483 | IOCTL_INFO(VIDIOC_DBG_G_REGISTER, 0), | |
484 | #endif | |
485 | IOCTL_INFO(VIDIOC_DBG_G_CHIP_IDENT, 0), | |
486 | IOCTL_INFO(VIDIOC_S_HW_FREQ_SEEK, INFO_FL_PRIO), | |
487 | IOCTL_INFO(VIDIOC_ENUM_DV_PRESETS, 0), | |
488 | IOCTL_INFO(VIDIOC_S_DV_PRESET, INFO_FL_PRIO), | |
489 | IOCTL_INFO(VIDIOC_G_DV_PRESET, 0), | |
490 | IOCTL_INFO(VIDIOC_QUERY_DV_PRESET, 0), | |
491 | IOCTL_INFO(VIDIOC_S_DV_TIMINGS, INFO_FL_PRIO), | |
492 | IOCTL_INFO(VIDIOC_G_DV_TIMINGS, 0), | |
493 | IOCTL_INFO(VIDIOC_DQEVENT, 0), | |
494 | IOCTL_INFO(VIDIOC_SUBSCRIBE_EVENT, 0), | |
495 | IOCTL_INFO(VIDIOC_UNSUBSCRIBE_EVENT, 0), | |
496 | IOCTL_INFO(VIDIOC_CREATE_BUFS, INFO_FL_PRIO), | |
497 | IOCTL_INFO(VIDIOC_PREPARE_BUF, 0), | |
498 | IOCTL_INFO(VIDIOC_ENUM_DV_TIMINGS, 0), | |
499 | IOCTL_INFO(VIDIOC_QUERY_DV_TIMINGS, 0), | |
500 | IOCTL_INFO(VIDIOC_DV_TIMINGS_CAP, 0), | |
501 | }; | |
502 | #define V4L2_IOCTLS ARRAY_SIZE(v4l2_ioctls) | |
503 | ||
504 | bool v4l2_is_known_ioctl(unsigned int cmd) | |
505 | { | |
506 | if (_IOC_NR(cmd) >= V4L2_IOCTLS) | |
507 | return false; | |
508 | return v4l2_ioctls[_IOC_NR(cmd)].ioctl == cmd; | |
509 | } | |
510 | ||
511 | /* Common ioctl debug function. This function can be used by | |
512 | external ioctl messages as well as internal V4L ioctl */ | |
513 | void v4l_printk_ioctl(unsigned int cmd) | |
514 | { | |
515 | char *dir, *type; | |
516 | ||
517 | switch (_IOC_TYPE(cmd)) { | |
518 | case 'd': | |
519 | type = "v4l2_int"; | |
520 | break; | |
521 | case 'V': | |
522 | if (_IOC_NR(cmd) >= V4L2_IOCTLS) { | |
523 | type = "v4l2"; | |
524 | break; | |
525 | } | |
526 | printk("%s", v4l2_ioctls[_IOC_NR(cmd)].name); | |
527 | return; | |
528 | default: | |
529 | type = "unknown"; | |
530 | } | |
531 | ||
532 | switch (_IOC_DIR(cmd)) { | |
533 | case _IOC_NONE: dir = "--"; break; | |
534 | case _IOC_READ: dir = "r-"; break; | |
535 | case _IOC_WRITE: dir = "-w"; break; | |
536 | case _IOC_READ | _IOC_WRITE: dir = "rw"; break; | |
537 | default: dir = "*ERR*"; break; | |
538 | } | |
539 | printk("%s ioctl '%c', dir=%s, #%d (0x%08x)", | |
540 | type, _IOC_TYPE(cmd), dir, _IOC_NR(cmd), cmd); | |
541 | } | |
542 | EXPORT_SYMBOL(v4l_printk_ioctl); | |
543 | ||
069b7479 | 544 | static long __video_do_ioctl(struct file *file, |
35ea11ff HV |
545 | unsigned int cmd, void *arg) |
546 | { | |
547 | struct video_device *vfd = video_devdata(file); | |
a399810c | 548 | const struct v4l2_ioctl_ops *ops = vfd->ioctl_ops; |
d5fbf32f | 549 | void *fh = file->private_data; |
99cd47bc | 550 | struct v4l2_fh *vfh = NULL; |
b1a873a3 | 551 | int use_fh_prio = 0; |
9190d191 | 552 | long ret = -ENOTTY; |
35ea11ff | 553 | |
6a717883 HV |
554 | if (ops == NULL) { |
555 | printk(KERN_WARNING "videodev: \"%s\" has no ioctl_ops.\n", | |
556 | vfd->name); | |
9190d191 | 557 | return ret; |
6a717883 HV |
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 | |
48ea0be0 HV |
565 | if (v4l2_is_known_ioctl(cmd)) { |
566 | struct v4l2_ioctl_info *info = &v4l2_ioctls[_IOC_NR(cmd)]; | |
567 | ||
568 | if (!test_bit(_IOC_NR(cmd), vfd->valid_ioctls) && | |
569 | !((info->flags & INFO_FL_CTRL) && vfh && vfh->ctrl_handler)) | |
570 | return -ENOTTY; | |
4b902fec HV |
571 | |
572 | if (use_fh_prio && (info->flags & INFO_FL_PRIO)) { | |
573 | ret = v4l2_prio_check(vfd->prio, vfh->prio); | |
574 | if (ret) | |
575 | return ret; | |
576 | } | |
48ea0be0 HV |
577 | } |
578 | ||
579 | if ((vfd->debug & V4L2_DEBUG_IOCTL) && | |
580 | !(vfd->debug & V4L2_DEBUG_IOCTL_ARG)) { | |
581 | v4l_print_ioctl(vfd->name, cmd); | |
582 | printk(KERN_CONT "\n"); | |
583 | } | |
99cd47bc | 584 | |
6a717883 | 585 | switch (cmd) { |
a399810c | 586 | |
35ea11ff HV |
587 | /* --- capabilities ------------------------------------------ */ |
588 | case VIDIOC_QUERYCAP: | |
589 | { | |
590 | struct v4l2_capability *cap = (struct v4l2_capability *)arg; | |
35ea11ff | 591 | |
ae6db515 | 592 | cap->version = LINUX_VERSION_CODE; |
a399810c | 593 | ret = ops->vidioc_querycap(file, fh, cap); |
35ea11ff HV |
594 | if (!ret) |
595 | dbgarg(cmd, "driver=%s, card=%s, bus=%s, " | |
596 | "version=0x%08x, " | |
583aa3a9 HV |
597 | "capabilities=0x%08x, " |
598 | "device_caps=0x%08x\n", | |
35ea11ff HV |
599 | cap->driver, cap->card, cap->bus_info, |
600 | cap->version, | |
583aa3a9 HV |
601 | cap->capabilities, |
602 | cap->device_caps); | |
35ea11ff HV |
603 | break; |
604 | } | |
605 | ||
606 | /* --- priority ------------------------------------------ */ | |
607 | case VIDIOC_G_PRIORITY: | |
608 | { | |
609 | enum v4l2_priority *p = arg; | |
610 | ||
99cd47bc HV |
611 | if (ops->vidioc_g_priority) { |
612 | ret = ops->vidioc_g_priority(file, fh, p); | |
b1a873a3 | 613 | } else if (use_fh_prio) { |
99cd47bc HV |
614 | *p = v4l2_prio_max(&vfd->v4l2_dev->prio); |
615 | ret = 0; | |
616 | } | |
35ea11ff HV |
617 | if (!ret) |
618 | dbgarg(cmd, "priority is %d\n", *p); | |
619 | break; | |
620 | } | |
621 | case VIDIOC_S_PRIORITY: | |
622 | { | |
623 | enum v4l2_priority *p = arg; | |
624 | ||
35ea11ff | 625 | dbgarg(cmd, "setting priority to %d\n", *p); |
99cd47bc HV |
626 | if (ops->vidioc_s_priority) |
627 | ret = ops->vidioc_s_priority(file, fh, *p); | |
628 | else | |
4b902fec | 629 | ret = v4l2_prio_change(&vfd->v4l2_dev->prio, |
93d5a30b | 630 | &vfh->prio, *p); |
35ea11ff HV |
631 | break; |
632 | } | |
633 | ||
634 | /* --- capture ioctls ---------------------------------------- */ | |
635 | case VIDIOC_ENUM_FMT: | |
636 | { | |
637 | struct v4l2_fmtdesc *f = arg; | |
35ea11ff | 638 | |
48ea0be0 | 639 | ret = -EINVAL; |
19c96e4b | 640 | switch (f->type) { |
35ea11ff | 641 | case V4L2_BUF_TYPE_VIDEO_CAPTURE: |
a5f2db53 | 642 | if (likely(ops->vidioc_enum_fmt_vid_cap)) |
a399810c | 643 | ret = ops->vidioc_enum_fmt_vid_cap(file, fh, f); |
35ea11ff | 644 | break; |
d14e6d76 | 645 | case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE: |
a5f2db53 | 646 | if (likely(ops->vidioc_enum_fmt_vid_cap_mplane)) |
d14e6d76 PO |
647 | ret = ops->vidioc_enum_fmt_vid_cap_mplane(file, |
648 | fh, f); | |
649 | break; | |
35ea11ff | 650 | case V4L2_BUF_TYPE_VIDEO_OVERLAY: |
a5f2db53 | 651 | if (likely(ops->vidioc_enum_fmt_vid_overlay)) |
a399810c | 652 | ret = ops->vidioc_enum_fmt_vid_overlay(file, |
35ea11ff HV |
653 | fh, f); |
654 | break; | |
35ea11ff | 655 | case V4L2_BUF_TYPE_VIDEO_OUTPUT: |
a5f2db53 | 656 | if (likely(ops->vidioc_enum_fmt_vid_out)) |
a399810c | 657 | ret = ops->vidioc_enum_fmt_vid_out(file, fh, f); |
35ea11ff | 658 | break; |
d14e6d76 | 659 | case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE: |
a5f2db53 | 660 | if (likely(ops->vidioc_enum_fmt_vid_out_mplane)) |
d14e6d76 PO |
661 | ret = ops->vidioc_enum_fmt_vid_out_mplane(file, |
662 | fh, f); | |
663 | break; | |
35ea11ff | 664 | case V4L2_BUF_TYPE_PRIVATE: |
a5f2db53 | 665 | if (likely(ops->vidioc_enum_fmt_type_private)) |
a399810c | 666 | ret = ops->vidioc_enum_fmt_type_private(file, |
35ea11ff HV |
667 | fh, f); |
668 | break; | |
669 | default: | |
670 | break; | |
671 | } | |
48ea0be0 | 672 | if (likely(!ret)) |
35ea11ff HV |
673 | dbgarg(cmd, "index=%d, type=%d, flags=%d, " |
674 | "pixelformat=%c%c%c%c, description='%s'\n", | |
675 | f->index, f->type, f->flags, | |
676 | (f->pixelformat & 0xff), | |
677 | (f->pixelformat >> 8) & 0xff, | |
678 | (f->pixelformat >> 16) & 0xff, | |
679 | (f->pixelformat >> 24) & 0xff, | |
680 | f->description); | |
681 | break; | |
682 | } | |
683 | case VIDIOC_G_FMT: | |
684 | { | |
685 | struct v4l2_format *f = (struct v4l2_format *)arg; | |
686 | ||
35ea11ff HV |
687 | /* FIXME: Should be one dump per type */ |
688 | dbgarg(cmd, "type=%s\n", prt_names(f->type, v4l2_type_names)); | |
689 | ||
48ea0be0 | 690 | ret = -EINVAL; |
35ea11ff HV |
691 | switch (f->type) { |
692 | case V4L2_BUF_TYPE_VIDEO_CAPTURE: | |
1d0c86ca | 693 | if (ops->vidioc_g_fmt_vid_cap) |
a399810c | 694 | ret = ops->vidioc_g_fmt_vid_cap(file, fh, f); |
35ea11ff HV |
695 | if (!ret) |
696 | v4l_print_pix_fmt(vfd, &f->fmt.pix); | |
697 | break; | |
d14e6d76 | 698 | case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE: |
1d0c86ca | 699 | if (ops->vidioc_g_fmt_vid_cap_mplane) |
d14e6d76 PO |
700 | ret = ops->vidioc_g_fmt_vid_cap_mplane(file, |
701 | fh, f); | |
d14e6d76 PO |
702 | if (!ret) |
703 | v4l_print_pix_fmt_mplane(vfd, &f->fmt.pix_mp); | |
704 | break; | |
35ea11ff | 705 | case V4L2_BUF_TYPE_VIDEO_OVERLAY: |
a5f2db53 | 706 | if (likely(ops->vidioc_g_fmt_vid_overlay)) |
a399810c | 707 | ret = ops->vidioc_g_fmt_vid_overlay(file, |
35ea11ff HV |
708 | fh, f); |
709 | break; | |
710 | case V4L2_BUF_TYPE_VIDEO_OUTPUT: | |
1d0c86ca | 711 | if (ops->vidioc_g_fmt_vid_out) |
a399810c | 712 | ret = ops->vidioc_g_fmt_vid_out(file, fh, f); |
35ea11ff HV |
713 | if (!ret) |
714 | v4l_print_pix_fmt(vfd, &f->fmt.pix); | |
715 | break; | |
d14e6d76 | 716 | case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE: |
1d0c86ca | 717 | if (ops->vidioc_g_fmt_vid_out_mplane) |
d14e6d76 PO |
718 | ret = ops->vidioc_g_fmt_vid_out_mplane(file, |
719 | fh, f); | |
d14e6d76 PO |
720 | if (!ret) |
721 | v4l_print_pix_fmt_mplane(vfd, &f->fmt.pix_mp); | |
722 | break; | |
35ea11ff | 723 | case V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY: |
a5f2db53 | 724 | if (likely(ops->vidioc_g_fmt_vid_out_overlay)) |
a399810c | 725 | ret = ops->vidioc_g_fmt_vid_out_overlay(file, |
35ea11ff HV |
726 | fh, f); |
727 | break; | |
728 | case V4L2_BUF_TYPE_VBI_CAPTURE: | |
a5f2db53 | 729 | if (likely(ops->vidioc_g_fmt_vbi_cap)) |
a399810c | 730 | ret = ops->vidioc_g_fmt_vbi_cap(file, fh, f); |
35ea11ff HV |
731 | break; |
732 | case V4L2_BUF_TYPE_VBI_OUTPUT: | |
a5f2db53 | 733 | if (likely(ops->vidioc_g_fmt_vbi_out)) |
a399810c | 734 | ret = ops->vidioc_g_fmt_vbi_out(file, fh, f); |
35ea11ff HV |
735 | break; |
736 | case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE: | |
a5f2db53 | 737 | if (likely(ops->vidioc_g_fmt_sliced_vbi_cap)) |
a399810c | 738 | ret = ops->vidioc_g_fmt_sliced_vbi_cap(file, |
35ea11ff HV |
739 | fh, f); |
740 | break; | |
741 | case V4L2_BUF_TYPE_SLICED_VBI_OUTPUT: | |
a5f2db53 | 742 | if (likely(ops->vidioc_g_fmt_sliced_vbi_out)) |
a399810c | 743 | ret = ops->vidioc_g_fmt_sliced_vbi_out(file, |
35ea11ff HV |
744 | fh, f); |
745 | break; | |
746 | case V4L2_BUF_TYPE_PRIVATE: | |
a5f2db53 | 747 | if (likely(ops->vidioc_g_fmt_type_private)) |
a399810c | 748 | ret = ops->vidioc_g_fmt_type_private(file, |
35ea11ff HV |
749 | fh, f); |
750 | break; | |
751 | } | |
35ea11ff HV |
752 | break; |
753 | } | |
754 | case VIDIOC_S_FMT: | |
755 | { | |
756 | struct v4l2_format *f = (struct v4l2_format *)arg; | |
757 | ||
93d5a30b HV |
758 | ret = -EINVAL; |
759 | ||
35ea11ff HV |
760 | /* FIXME: Should be one dump per type */ |
761 | dbgarg(cmd, "type=%s\n", prt_names(f->type, v4l2_type_names)); | |
762 | ||
763 | switch (f->type) { | |
764 | case V4L2_BUF_TYPE_VIDEO_CAPTURE: | |
7ecc0cf9 | 765 | CLEAR_AFTER_FIELD(f, fmt.pix); |
35ea11ff | 766 | v4l_print_pix_fmt(vfd, &f->fmt.pix); |
1d0c86ca | 767 | if (ops->vidioc_s_fmt_vid_cap) |
a399810c | 768 | ret = ops->vidioc_s_fmt_vid_cap(file, fh, f); |
d14e6d76 PO |
769 | break; |
770 | case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE: | |
771 | CLEAR_AFTER_FIELD(f, fmt.pix_mp); | |
772 | v4l_print_pix_fmt_mplane(vfd, &f->fmt.pix_mp); | |
1d0c86ca | 773 | if (ops->vidioc_s_fmt_vid_cap_mplane) |
d14e6d76 PO |
774 | ret = ops->vidioc_s_fmt_vid_cap_mplane(file, |
775 | fh, f); | |
35ea11ff HV |
776 | break; |
777 | case V4L2_BUF_TYPE_VIDEO_OVERLAY: | |
7ecc0cf9 | 778 | CLEAR_AFTER_FIELD(f, fmt.win); |
a399810c HV |
779 | if (ops->vidioc_s_fmt_vid_overlay) |
780 | ret = ops->vidioc_s_fmt_vid_overlay(file, | |
35ea11ff HV |
781 | fh, f); |
782 | break; | |
783 | case V4L2_BUF_TYPE_VIDEO_OUTPUT: | |
7ecc0cf9 | 784 | CLEAR_AFTER_FIELD(f, fmt.pix); |
35ea11ff | 785 | v4l_print_pix_fmt(vfd, &f->fmt.pix); |
1d0c86ca | 786 | if (ops->vidioc_s_fmt_vid_out) |
a399810c | 787 | ret = ops->vidioc_s_fmt_vid_out(file, fh, f); |
d14e6d76 PO |
788 | break; |
789 | case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE: | |
790 | CLEAR_AFTER_FIELD(f, fmt.pix_mp); | |
791 | v4l_print_pix_fmt_mplane(vfd, &f->fmt.pix_mp); | |
1d0c86ca | 792 | if (ops->vidioc_s_fmt_vid_out_mplane) |
d14e6d76 PO |
793 | ret = ops->vidioc_s_fmt_vid_out_mplane(file, |
794 | fh, f); | |
35ea11ff HV |
795 | break; |
796 | case V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY: | |
7ecc0cf9 | 797 | CLEAR_AFTER_FIELD(f, fmt.win); |
a399810c HV |
798 | if (ops->vidioc_s_fmt_vid_out_overlay) |
799 | ret = ops->vidioc_s_fmt_vid_out_overlay(file, | |
35ea11ff HV |
800 | fh, f); |
801 | break; | |
802 | case V4L2_BUF_TYPE_VBI_CAPTURE: | |
7ecc0cf9 | 803 | CLEAR_AFTER_FIELD(f, fmt.vbi); |
a5f2db53 | 804 | if (likely(ops->vidioc_s_fmt_vbi_cap)) |
a399810c | 805 | ret = ops->vidioc_s_fmt_vbi_cap(file, fh, f); |
35ea11ff HV |
806 | break; |
807 | case V4L2_BUF_TYPE_VBI_OUTPUT: | |
7ecc0cf9 | 808 | CLEAR_AFTER_FIELD(f, fmt.vbi); |
a5f2db53 | 809 | if (likely(ops->vidioc_s_fmt_vbi_out)) |
a399810c | 810 | ret = ops->vidioc_s_fmt_vbi_out(file, fh, f); |
35ea11ff HV |
811 | break; |
812 | case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE: | |
7ecc0cf9 | 813 | CLEAR_AFTER_FIELD(f, fmt.sliced); |
a5f2db53 | 814 | if (likely(ops->vidioc_s_fmt_sliced_vbi_cap)) |
a399810c | 815 | ret = ops->vidioc_s_fmt_sliced_vbi_cap(file, |
35ea11ff HV |
816 | fh, f); |
817 | break; | |
818 | case V4L2_BUF_TYPE_SLICED_VBI_OUTPUT: | |
7ecc0cf9 | 819 | CLEAR_AFTER_FIELD(f, fmt.sliced); |
a5f2db53 | 820 | if (likely(ops->vidioc_s_fmt_sliced_vbi_out)) |
a399810c | 821 | ret = ops->vidioc_s_fmt_sliced_vbi_out(file, |
35ea11ff | 822 | fh, f); |
a5f2db53 | 823 | |
35ea11ff HV |
824 | break; |
825 | case V4L2_BUF_TYPE_PRIVATE: | |
7ecc0cf9 | 826 | /* CLEAR_AFTER_FIELD(f, fmt.raw_data); <- does nothing */ |
a5f2db53 | 827 | if (likely(ops->vidioc_s_fmt_type_private)) |
a399810c | 828 | ret = ops->vidioc_s_fmt_type_private(file, |
35ea11ff HV |
829 | fh, f); |
830 | break; | |
831 | } | |
832 | break; | |
833 | } | |
834 | case VIDIOC_TRY_FMT: | |
835 | { | |
836 | struct v4l2_format *f = (struct v4l2_format *)arg; | |
837 | ||
838 | /* FIXME: Should be one dump per type */ | |
839 | dbgarg(cmd, "type=%s\n", prt_names(f->type, | |
840 | v4l2_type_names)); | |
48ea0be0 | 841 | ret = -EINVAL; |
35ea11ff HV |
842 | switch (f->type) { |
843 | case V4L2_BUF_TYPE_VIDEO_CAPTURE: | |
7ecc0cf9 | 844 | CLEAR_AFTER_FIELD(f, fmt.pix); |
1d0c86ca | 845 | if (ops->vidioc_try_fmt_vid_cap) |
a399810c | 846 | ret = ops->vidioc_try_fmt_vid_cap(file, fh, f); |
35ea11ff HV |
847 | if (!ret) |
848 | v4l_print_pix_fmt(vfd, &f->fmt.pix); | |
849 | break; | |
d14e6d76 PO |
850 | case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE: |
851 | CLEAR_AFTER_FIELD(f, fmt.pix_mp); | |
1d0c86ca | 852 | if (ops->vidioc_try_fmt_vid_cap_mplane) |
d14e6d76 PO |
853 | ret = ops->vidioc_try_fmt_vid_cap_mplane(file, |
854 | fh, f); | |
d14e6d76 PO |
855 | if (!ret) |
856 | v4l_print_pix_fmt_mplane(vfd, &f->fmt.pix_mp); | |
857 | break; | |
35ea11ff | 858 | case V4L2_BUF_TYPE_VIDEO_OVERLAY: |
7ecc0cf9 | 859 | CLEAR_AFTER_FIELD(f, fmt.win); |
a5f2db53 | 860 | if (likely(ops->vidioc_try_fmt_vid_overlay)) |
a399810c | 861 | ret = ops->vidioc_try_fmt_vid_overlay(file, |
35ea11ff HV |
862 | fh, f); |
863 | break; | |
864 | case V4L2_BUF_TYPE_VIDEO_OUTPUT: | |
7ecc0cf9 | 865 | CLEAR_AFTER_FIELD(f, fmt.pix); |
1d0c86ca | 866 | if (ops->vidioc_try_fmt_vid_out) |
a399810c | 867 | ret = ops->vidioc_try_fmt_vid_out(file, fh, f); |
35ea11ff HV |
868 | if (!ret) |
869 | v4l_print_pix_fmt(vfd, &f->fmt.pix); | |
870 | break; | |
d14e6d76 PO |
871 | case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE: |
872 | CLEAR_AFTER_FIELD(f, fmt.pix_mp); | |
1d0c86ca | 873 | if (ops->vidioc_try_fmt_vid_out_mplane) |
d14e6d76 PO |
874 | ret = ops->vidioc_try_fmt_vid_out_mplane(file, |
875 | fh, f); | |
d14e6d76 PO |
876 | if (!ret) |
877 | v4l_print_pix_fmt_mplane(vfd, &f->fmt.pix_mp); | |
878 | break; | |
35ea11ff | 879 | case V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY: |
7ecc0cf9 | 880 | CLEAR_AFTER_FIELD(f, fmt.win); |
a5f2db53 | 881 | if (likely(ops->vidioc_try_fmt_vid_out_overlay)) |
a399810c | 882 | ret = ops->vidioc_try_fmt_vid_out_overlay(file, |
35ea11ff HV |
883 | fh, f); |
884 | break; | |
885 | case V4L2_BUF_TYPE_VBI_CAPTURE: | |
7ecc0cf9 | 886 | CLEAR_AFTER_FIELD(f, fmt.vbi); |
a5f2db53 | 887 | if (likely(ops->vidioc_try_fmt_vbi_cap)) |
a399810c | 888 | ret = ops->vidioc_try_fmt_vbi_cap(file, fh, f); |
35ea11ff HV |
889 | break; |
890 | case V4L2_BUF_TYPE_VBI_OUTPUT: | |
7ecc0cf9 | 891 | CLEAR_AFTER_FIELD(f, fmt.vbi); |
a5f2db53 | 892 | if (likely(ops->vidioc_try_fmt_vbi_out)) |
a399810c | 893 | ret = ops->vidioc_try_fmt_vbi_out(file, fh, f); |
35ea11ff HV |
894 | break; |
895 | case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE: | |
7ecc0cf9 | 896 | CLEAR_AFTER_FIELD(f, fmt.sliced); |
a5f2db53 | 897 | if (likely(ops->vidioc_try_fmt_sliced_vbi_cap)) |
a399810c | 898 | ret = ops->vidioc_try_fmt_sliced_vbi_cap(file, |
35ea11ff HV |
899 | fh, f); |
900 | break; | |
901 | case V4L2_BUF_TYPE_SLICED_VBI_OUTPUT: | |
7ecc0cf9 | 902 | CLEAR_AFTER_FIELD(f, fmt.sliced); |
a5f2db53 | 903 | if (likely(ops->vidioc_try_fmt_sliced_vbi_out)) |
a399810c | 904 | ret = ops->vidioc_try_fmt_sliced_vbi_out(file, |
35ea11ff HV |
905 | fh, f); |
906 | break; | |
907 | case V4L2_BUF_TYPE_PRIVATE: | |
7ecc0cf9 | 908 | /* CLEAR_AFTER_FIELD(f, fmt.raw_data); <- does nothing */ |
a5f2db53 | 909 | if (likely(ops->vidioc_try_fmt_type_private)) |
a399810c | 910 | ret = ops->vidioc_try_fmt_type_private(file, |
35ea11ff HV |
911 | fh, f); |
912 | break; | |
913 | } | |
35ea11ff HV |
914 | break; |
915 | } | |
916 | /* FIXME: Those buf reqs could be handled here, | |
917 | with some changes on videobuf to allow its header to be included at | |
918 | videodev2.h or being merged at videodev2. | |
919 | */ | |
920 | case VIDIOC_REQBUFS: | |
921 | { | |
922 | struct v4l2_requestbuffers *p = arg; | |
923 | ||
a399810c | 924 | ret = check_fmt(ops, p->type); |
35ea11ff HV |
925 | if (ret) |
926 | break; | |
927 | ||
7ecc0cf9 TP |
928 | if (p->type < V4L2_BUF_TYPE_PRIVATE) |
929 | CLEAR_AFTER_FIELD(p, memory); | |
930 | ||
a399810c | 931 | ret = ops->vidioc_reqbufs(file, fh, p); |
35ea11ff HV |
932 | dbgarg(cmd, "count=%d, type=%s, memory=%s\n", |
933 | p->count, | |
934 | prt_names(p->type, v4l2_type_names), | |
935 | prt_names(p->memory, v4l2_memory_names)); | |
936 | break; | |
937 | } | |
938 | case VIDIOC_QUERYBUF: | |
939 | { | |
940 | struct v4l2_buffer *p = arg; | |
941 | ||
a399810c | 942 | ret = check_fmt(ops, p->type); |
35ea11ff HV |
943 | if (ret) |
944 | break; | |
945 | ||
a399810c | 946 | ret = ops->vidioc_querybuf(file, fh, p); |
35ea11ff HV |
947 | if (!ret) |
948 | dbgbuf(cmd, vfd, p); | |
949 | break; | |
950 | } | |
951 | case VIDIOC_QBUF: | |
952 | { | |
953 | struct v4l2_buffer *p = arg; | |
954 | ||
a399810c | 955 | ret = check_fmt(ops, p->type); |
35ea11ff HV |
956 | if (ret) |
957 | break; | |
958 | ||
a399810c | 959 | ret = ops->vidioc_qbuf(file, fh, p); |
35ea11ff HV |
960 | if (!ret) |
961 | dbgbuf(cmd, vfd, p); | |
962 | break; | |
963 | } | |
964 | case VIDIOC_DQBUF: | |
965 | { | |
966 | struct v4l2_buffer *p = arg; | |
967 | ||
a399810c | 968 | ret = check_fmt(ops, p->type); |
35ea11ff HV |
969 | if (ret) |
970 | break; | |
971 | ||
a399810c | 972 | ret = ops->vidioc_dqbuf(file, fh, p); |
35ea11ff HV |
973 | if (!ret) |
974 | dbgbuf(cmd, vfd, p); | |
975 | break; | |
976 | } | |
977 | case VIDIOC_OVERLAY: | |
978 | { | |
979 | int *i = arg; | |
980 | ||
35ea11ff | 981 | dbgarg(cmd, "value=%d\n", *i); |
a399810c | 982 | ret = ops->vidioc_overlay(file, fh, *i); |
35ea11ff HV |
983 | break; |
984 | } | |
985 | case VIDIOC_G_FBUF: | |
986 | { | |
987 | struct v4l2_framebuffer *p = arg; | |
988 | ||
a399810c | 989 | ret = ops->vidioc_g_fbuf(file, fh, arg); |
35ea11ff HV |
990 | if (!ret) { |
991 | dbgarg(cmd, "capability=0x%x, flags=%d, base=0x%08lx\n", | |
992 | p->capability, p->flags, | |
993 | (unsigned long)p->base); | |
994 | v4l_print_pix_fmt(vfd, &p->fmt); | |
995 | } | |
996 | break; | |
997 | } | |
998 | case VIDIOC_S_FBUF: | |
999 | { | |
1000 | struct v4l2_framebuffer *p = arg; | |
1001 | ||
35ea11ff HV |
1002 | dbgarg(cmd, "capability=0x%x, flags=%d, base=0x%08lx\n", |
1003 | p->capability, p->flags, (unsigned long)p->base); | |
1004 | v4l_print_pix_fmt(vfd, &p->fmt); | |
a399810c | 1005 | ret = ops->vidioc_s_fbuf(file, fh, arg); |
35ea11ff HV |
1006 | break; |
1007 | } | |
1008 | case VIDIOC_STREAMON: | |
1009 | { | |
1010 | enum v4l2_buf_type i = *(int *)arg; | |
1011 | ||
35ea11ff | 1012 | dbgarg(cmd, "type=%s\n", prt_names(i, v4l2_type_names)); |
a399810c | 1013 | ret = ops->vidioc_streamon(file, fh, i); |
35ea11ff HV |
1014 | break; |
1015 | } | |
1016 | case VIDIOC_STREAMOFF: | |
1017 | { | |
1018 | enum v4l2_buf_type i = *(int *)arg; | |
1019 | ||
35ea11ff | 1020 | dbgarg(cmd, "type=%s\n", prt_names(i, v4l2_type_names)); |
a399810c | 1021 | ret = ops->vidioc_streamoff(file, fh, i); |
35ea11ff HV |
1022 | break; |
1023 | } | |
1024 | /* ---------- tv norms ---------- */ | |
1025 | case VIDIOC_ENUMSTD: | |
1026 | { | |
1027 | struct v4l2_standard *p = arg; | |
1028 | v4l2_std_id id = vfd->tvnorms, curr_id = 0; | |
1029 | unsigned int index = p->index, i, j = 0; | |
1030 | const char *descr = ""; | |
1031 | ||
93d5a30b HV |
1032 | if (id == 0) |
1033 | break; | |
1034 | ret = -EINVAL; | |
1035 | ||
35ea11ff HV |
1036 | /* Return norm array in a canonical way */ |
1037 | for (i = 0; i <= index && id; i++) { | |
1038 | /* last std value in the standards array is 0, so this | |
1039 | while always ends there since (id & 0) == 0. */ | |
1040 | while ((id & standards[j].std) != standards[j].std) | |
1041 | j++; | |
1042 | curr_id = standards[j].std; | |
1043 | descr = standards[j].descr; | |
1044 | j++; | |
1045 | if (curr_id == 0) | |
1046 | break; | |
1047 | if (curr_id != V4L2_STD_PAL && | |
1048 | curr_id != V4L2_STD_SECAM && | |
1049 | curr_id != V4L2_STD_NTSC) | |
1050 | id &= ~curr_id; | |
1051 | } | |
1052 | if (i <= index) | |
3f5e1824 | 1053 | break; |
35ea11ff HV |
1054 | |
1055 | v4l2_video_std_construct(p, curr_id, descr); | |
35ea11ff HV |
1056 | |
1057 | dbgarg(cmd, "index=%d, id=0x%Lx, name=%s, fps=%d/%d, " | |
1058 | "framelines=%d\n", p->index, | |
1059 | (unsigned long long)p->id, p->name, | |
1060 | p->frameperiod.numerator, | |
1061 | p->frameperiod.denominator, | |
1062 | p->framelines); | |
1063 | ||
1064 | ret = 0; | |
1065 | break; | |
1066 | } | |
1067 | case VIDIOC_G_STD: | |
1068 | { | |
1069 | v4l2_std_id *id = arg; | |
1070 | ||
35ea11ff | 1071 | /* Calls the specific handler */ |
a399810c HV |
1072 | if (ops->vidioc_g_std) |
1073 | ret = ops->vidioc_g_std(file, fh, id); | |
a5f2db53 MCC |
1074 | else if (vfd->current_norm) { |
1075 | ret = 0; | |
35ea11ff | 1076 | *id = vfd->current_norm; |
a5f2db53 | 1077 | } |
35ea11ff | 1078 | |
a5f2db53 | 1079 | if (likely(!ret)) |
35ea11ff HV |
1080 | dbgarg(cmd, "std=0x%08Lx\n", (long long unsigned)*id); |
1081 | break; | |
1082 | } | |
1083 | case VIDIOC_S_STD: | |
1084 | { | |
1085 | v4l2_std_id *id = arg, norm; | |
1086 | ||
1087 | dbgarg(cmd, "std=%08Lx\n", (long long unsigned)*id); | |
1088 | ||
93d5a30b | 1089 | ret = -EINVAL; |
35ea11ff HV |
1090 | norm = (*id) & vfd->tvnorms; |
1091 | if (vfd->tvnorms && !norm) /* Check if std is supported */ | |
1092 | break; | |
1093 | ||
1094 | /* Calls the specific handler */ | |
93d5a30b | 1095 | ret = ops->vidioc_s_std(file, fh, &norm); |
35ea11ff HV |
1096 | |
1097 | /* Updates standard information */ | |
1098 | if (ret >= 0) | |
1099 | vfd->current_norm = norm; | |
1100 | break; | |
1101 | } | |
1102 | case VIDIOC_QUERYSTD: | |
1103 | { | |
1104 | v4l2_std_id *p = arg; | |
1105 | ||
8715e6cb MCC |
1106 | /* |
1107 | * If nothing detected, it should return all supported | |
1108 | * Drivers just need to mask the std argument, in order | |
1109 | * to remove the standards that don't apply from the mask. | |
1110 | * This means that tuners, audio and video decoders can join | |
1111 | * their efforts to improve the standards detection | |
1112 | */ | |
1113 | *p = vfd->tvnorms; | |
a399810c | 1114 | ret = ops->vidioc_querystd(file, fh, arg); |
35ea11ff HV |
1115 | if (!ret) |
1116 | dbgarg(cmd, "detected std=%08Lx\n", | |
1117 | (unsigned long long)*p); | |
1118 | break; | |
1119 | } | |
1120 | /* ------ input switching ---------- */ | |
1121 | /* FIXME: Inputs can be handled inside videodev2 */ | |
1122 | case VIDIOC_ENUMINPUT: | |
1123 | { | |
1124 | struct v4l2_input *p = arg; | |
35ea11ff | 1125 | |
b6456c0c MK |
1126 | /* |
1127 | * We set the flags for CAP_PRESETS, CAP_CUSTOM_TIMINGS & | |
1128 | * CAP_STD here based on ioctl handler provided by the | |
1129 | * driver. If the driver doesn't support these | |
1130 | * for a specific input, it must override these flags. | |
1131 | */ | |
1132 | if (ops->vidioc_s_std) | |
1133 | p->capabilities |= V4L2_IN_CAP_STD; | |
1134 | if (ops->vidioc_s_dv_preset) | |
1135 | p->capabilities |= V4L2_IN_CAP_PRESETS; | |
1136 | if (ops->vidioc_s_dv_timings) | |
1137 | p->capabilities |= V4L2_IN_CAP_CUSTOM_TIMINGS; | |
1138 | ||
a399810c | 1139 | ret = ops->vidioc_enum_input(file, fh, p); |
35ea11ff HV |
1140 | if (!ret) |
1141 | dbgarg(cmd, "index=%d, name=%s, type=%d, " | |
1142 | "audioset=%d, " | |
1143 | "tuner=%d, std=%08Lx, status=%d\n", | |
1144 | p->index, p->name, p->type, p->audioset, | |
1145 | p->tuner, | |
1146 | (unsigned long long)p->std, | |
1147 | p->status); | |
1148 | break; | |
1149 | } | |
1150 | case VIDIOC_G_INPUT: | |
1151 | { | |
1152 | unsigned int *i = arg; | |
1153 | ||
a399810c | 1154 | ret = ops->vidioc_g_input(file, fh, i); |
35ea11ff HV |
1155 | if (!ret) |
1156 | dbgarg(cmd, "value=%d\n", *i); | |
1157 | break; | |
1158 | } | |
1159 | case VIDIOC_S_INPUT: | |
1160 | { | |
1161 | unsigned int *i = arg; | |
1162 | ||
35ea11ff | 1163 | dbgarg(cmd, "value=%d\n", *i); |
a399810c | 1164 | ret = ops->vidioc_s_input(file, fh, *i); |
35ea11ff HV |
1165 | break; |
1166 | } | |
1167 | ||
1168 | /* ------ output switching ---------- */ | |
1169 | case VIDIOC_ENUMOUTPUT: | |
1170 | { | |
1171 | struct v4l2_output *p = arg; | |
35ea11ff | 1172 | |
b6456c0c MK |
1173 | /* |
1174 | * We set the flags for CAP_PRESETS, CAP_CUSTOM_TIMINGS & | |
1175 | * CAP_STD here based on ioctl handler provided by the | |
1176 | * driver. If the driver doesn't support these | |
1177 | * for a specific output, it must override these flags. | |
1178 | */ | |
1179 | if (ops->vidioc_s_std) | |
1180 | p->capabilities |= V4L2_OUT_CAP_STD; | |
1181 | if (ops->vidioc_s_dv_preset) | |
1182 | p->capabilities |= V4L2_OUT_CAP_PRESETS; | |
1183 | if (ops->vidioc_s_dv_timings) | |
1184 | p->capabilities |= V4L2_OUT_CAP_CUSTOM_TIMINGS; | |
1185 | ||
a399810c | 1186 | ret = ops->vidioc_enum_output(file, fh, p); |
35ea11ff HV |
1187 | if (!ret) |
1188 | dbgarg(cmd, "index=%d, name=%s, type=%d, " | |
1189 | "audioset=0x%x, " | |
1190 | "modulator=%d, std=0x%08Lx\n", | |
1191 | p->index, p->name, p->type, p->audioset, | |
1192 | p->modulator, (unsigned long long)p->std); | |
1193 | break; | |
1194 | } | |
1195 | case VIDIOC_G_OUTPUT: | |
1196 | { | |
1197 | unsigned int *i = arg; | |
1198 | ||
a399810c | 1199 | ret = ops->vidioc_g_output(file, fh, i); |
35ea11ff HV |
1200 | if (!ret) |
1201 | dbgarg(cmd, "value=%d\n", *i); | |
1202 | break; | |
1203 | } | |
1204 | case VIDIOC_S_OUTPUT: | |
1205 | { | |
1206 | unsigned int *i = arg; | |
1207 | ||
35ea11ff | 1208 | dbgarg(cmd, "value=%d\n", *i); |
a399810c | 1209 | ret = ops->vidioc_s_output(file, fh, *i); |
35ea11ff HV |
1210 | break; |
1211 | } | |
1212 | ||
1213 | /* --- controls ---------------------------------------------- */ | |
1214 | case VIDIOC_QUERYCTRL: | |
1215 | { | |
1216 | struct v4l2_queryctrl *p = arg; | |
1217 | ||
2d28b686 HV |
1218 | if (vfh && vfh->ctrl_handler) |
1219 | ret = v4l2_queryctrl(vfh->ctrl_handler, p); | |
1220 | else if (vfd->ctrl_handler) | |
11bbc1ca HV |
1221 | ret = v4l2_queryctrl(vfd->ctrl_handler, p); |
1222 | else if (ops->vidioc_queryctrl) | |
1223 | ret = ops->vidioc_queryctrl(file, fh, p); | |
1224 | else | |
35ea11ff | 1225 | break; |
35ea11ff HV |
1226 | if (!ret) |
1227 | dbgarg(cmd, "id=0x%x, type=%d, name=%s, min/max=%d/%d, " | |
1228 | "step=%d, default=%d, flags=0x%08x\n", | |
1229 | p->id, p->type, p->name, | |
1230 | p->minimum, p->maximum, | |
1231 | p->step, p->default_value, p->flags); | |
1232 | else | |
1233 | dbgarg(cmd, "id=0x%x\n", p->id); | |
1234 | break; | |
1235 | } | |
1236 | case VIDIOC_G_CTRL: | |
1237 | { | |
1238 | struct v4l2_control *p = arg; | |
1239 | ||
2d28b686 HV |
1240 | if (vfh && vfh->ctrl_handler) |
1241 | ret = v4l2_g_ctrl(vfh->ctrl_handler, p); | |
1242 | else if (vfd->ctrl_handler) | |
11bbc1ca HV |
1243 | ret = v4l2_g_ctrl(vfd->ctrl_handler, p); |
1244 | else if (ops->vidioc_g_ctrl) | |
a399810c HV |
1245 | ret = ops->vidioc_g_ctrl(file, fh, p); |
1246 | else if (ops->vidioc_g_ext_ctrls) { | |
35ea11ff HV |
1247 | struct v4l2_ext_controls ctrls; |
1248 | struct v4l2_ext_control ctrl; | |
1249 | ||
1250 | ctrls.ctrl_class = V4L2_CTRL_ID2CLASS(p->id); | |
1251 | ctrls.count = 1; | |
1252 | ctrls.controls = &ctrl; | |
1253 | ctrl.id = p->id; | |
1254 | ctrl.value = p->value; | |
1255 | if (check_ext_ctrls(&ctrls, 1)) { | |
a399810c | 1256 | ret = ops->vidioc_g_ext_ctrls(file, fh, &ctrls); |
35ea11ff HV |
1257 | if (ret == 0) |
1258 | p->value = ctrl.value; | |
1259 | } | |
1260 | } else | |
1261 | break; | |
1262 | if (!ret) | |
1263 | dbgarg(cmd, "id=0x%x, value=%d\n", p->id, p->value); | |
1264 | else | |
1265 | dbgarg(cmd, "id=0x%x\n", p->id); | |
1266 | break; | |
1267 | } | |
1268 | case VIDIOC_S_CTRL: | |
1269 | { | |
1270 | struct v4l2_control *p = arg; | |
1271 | struct v4l2_ext_controls ctrls; | |
1272 | struct v4l2_ext_control ctrl; | |
1273 | ||
2d28b686 | 1274 | if (!(vfh && vfh->ctrl_handler) && !vfd->ctrl_handler && |
11bbc1ca | 1275 | !ops->vidioc_s_ctrl && !ops->vidioc_s_ext_ctrls) |
35ea11ff HV |
1276 | break; |
1277 | ||
1278 | dbgarg(cmd, "id=0x%x, value=%d\n", p->id, p->value); | |
1279 | ||
2d28b686 | 1280 | if (vfh && vfh->ctrl_handler) { |
ab892bac | 1281 | ret = v4l2_s_ctrl(vfh, vfh->ctrl_handler, p); |
2d28b686 HV |
1282 | break; |
1283 | } | |
11bbc1ca | 1284 | if (vfd->ctrl_handler) { |
ab892bac | 1285 | ret = v4l2_s_ctrl(NULL, vfd->ctrl_handler, p); |
11bbc1ca HV |
1286 | break; |
1287 | } | |
a399810c HV |
1288 | if (ops->vidioc_s_ctrl) { |
1289 | ret = ops->vidioc_s_ctrl(file, fh, p); | |
35ea11ff HV |
1290 | break; |
1291 | } | |
a399810c | 1292 | if (!ops->vidioc_s_ext_ctrls) |
35ea11ff HV |
1293 | break; |
1294 | ||
1295 | ctrls.ctrl_class = V4L2_CTRL_ID2CLASS(p->id); | |
1296 | ctrls.count = 1; | |
1297 | ctrls.controls = &ctrl; | |
1298 | ctrl.id = p->id; | |
1299 | ctrl.value = p->value; | |
1300 | if (check_ext_ctrls(&ctrls, 1)) | |
a399810c | 1301 | ret = ops->vidioc_s_ext_ctrls(file, fh, &ctrls); |
93d5a30b HV |
1302 | else |
1303 | ret = -EINVAL; | |
35ea11ff HV |
1304 | break; |
1305 | } | |
1306 | case VIDIOC_G_EXT_CTRLS: | |
1307 | { | |
1308 | struct v4l2_ext_controls *p = arg; | |
1309 | ||
1310 | p->error_idx = p->count; | |
2d28b686 HV |
1311 | if (vfh && vfh->ctrl_handler) |
1312 | ret = v4l2_g_ext_ctrls(vfh->ctrl_handler, p); | |
1313 | else if (vfd->ctrl_handler) | |
11bbc1ca | 1314 | ret = v4l2_g_ext_ctrls(vfd->ctrl_handler, p); |
93d5a30b HV |
1315 | else if (ops->vidioc_g_ext_ctrls) |
1316 | ret = check_ext_ctrls(p, 0) ? | |
1317 | ops->vidioc_g_ext_ctrls(file, fh, p) : | |
1318 | -EINVAL; | |
11bbc1ca HV |
1319 | else |
1320 | break; | |
35ea11ff HV |
1321 | v4l_print_ext_ctrls(cmd, vfd, p, !ret); |
1322 | break; | |
1323 | } | |
1324 | case VIDIOC_S_EXT_CTRLS: | |
1325 | { | |
1326 | struct v4l2_ext_controls *p = arg; | |
1327 | ||
1328 | p->error_idx = p->count; | |
2d28b686 HV |
1329 | if (!(vfh && vfh->ctrl_handler) && !vfd->ctrl_handler && |
1330 | !ops->vidioc_s_ext_ctrls) | |
35ea11ff HV |
1331 | break; |
1332 | v4l_print_ext_ctrls(cmd, vfd, p, 1); | |
2d28b686 | 1333 | if (vfh && vfh->ctrl_handler) |
ab892bac | 1334 | ret = v4l2_s_ext_ctrls(vfh, vfh->ctrl_handler, p); |
2d28b686 | 1335 | else if (vfd->ctrl_handler) |
ab892bac | 1336 | ret = v4l2_s_ext_ctrls(NULL, vfd->ctrl_handler, p); |
11bbc1ca | 1337 | else if (check_ext_ctrls(p, 0)) |
a399810c | 1338 | ret = ops->vidioc_s_ext_ctrls(file, fh, p); |
93d5a30b HV |
1339 | else |
1340 | ret = -EINVAL; | |
35ea11ff HV |
1341 | break; |
1342 | } | |
1343 | case VIDIOC_TRY_EXT_CTRLS: | |
1344 | { | |
1345 | struct v4l2_ext_controls *p = arg; | |
1346 | ||
1347 | p->error_idx = p->count; | |
2d28b686 HV |
1348 | if (!(vfh && vfh->ctrl_handler) && !vfd->ctrl_handler && |
1349 | !ops->vidioc_try_ext_ctrls) | |
35ea11ff HV |
1350 | break; |
1351 | v4l_print_ext_ctrls(cmd, vfd, p, 1); | |
2d28b686 HV |
1352 | if (vfh && vfh->ctrl_handler) |
1353 | ret = v4l2_try_ext_ctrls(vfh->ctrl_handler, p); | |
1354 | else if (vfd->ctrl_handler) | |
11bbc1ca HV |
1355 | ret = v4l2_try_ext_ctrls(vfd->ctrl_handler, p); |
1356 | else if (check_ext_ctrls(p, 0)) | |
a399810c | 1357 | ret = ops->vidioc_try_ext_ctrls(file, fh, p); |
93d5a30b HV |
1358 | else |
1359 | ret = -EINVAL; | |
35ea11ff HV |
1360 | break; |
1361 | } | |
1362 | case VIDIOC_QUERYMENU: | |
1363 | { | |
1364 | struct v4l2_querymenu *p = arg; | |
1365 | ||
2d28b686 HV |
1366 | if (vfh && vfh->ctrl_handler) |
1367 | ret = v4l2_querymenu(vfh->ctrl_handler, p); | |
1368 | else if (vfd->ctrl_handler) | |
11bbc1ca HV |
1369 | ret = v4l2_querymenu(vfd->ctrl_handler, p); |
1370 | else if (ops->vidioc_querymenu) | |
1371 | ret = ops->vidioc_querymenu(file, fh, p); | |
1372 | else | |
35ea11ff | 1373 | break; |
35ea11ff HV |
1374 | if (!ret) |
1375 | dbgarg(cmd, "id=0x%x, index=%d, name=%s\n", | |
1376 | p->id, p->index, p->name); | |
1377 | else | |
1378 | dbgarg(cmd, "id=0x%x, index=%d\n", | |
1379 | p->id, p->index); | |
1380 | break; | |
1381 | } | |
1382 | /* --- audio ---------------------------------------------- */ | |
1383 | case VIDIOC_ENUMAUDIO: | |
1384 | { | |
1385 | struct v4l2_audio *p = arg; | |
1386 | ||
a399810c | 1387 | ret = ops->vidioc_enumaudio(file, fh, p); |
35ea11ff HV |
1388 | if (!ret) |
1389 | dbgarg(cmd, "index=%d, name=%s, capability=0x%x, " | |
1390 | "mode=0x%x\n", p->index, p->name, | |
1391 | p->capability, p->mode); | |
1392 | else | |
1393 | dbgarg(cmd, "index=%d\n", p->index); | |
1394 | break; | |
1395 | } | |
1396 | case VIDIOC_G_AUDIO: | |
1397 | { | |
1398 | struct v4l2_audio *p = arg; | |
35ea11ff | 1399 | |
a399810c | 1400 | ret = ops->vidioc_g_audio(file, fh, p); |
35ea11ff HV |
1401 | if (!ret) |
1402 | dbgarg(cmd, "index=%d, name=%s, capability=0x%x, " | |
1403 | "mode=0x%x\n", p->index, | |
1404 | p->name, p->capability, p->mode); | |
1405 | else | |
1406 | dbgarg(cmd, "index=%d\n", p->index); | |
1407 | break; | |
1408 | } | |
1409 | case VIDIOC_S_AUDIO: | |
1410 | { | |
1411 | struct v4l2_audio *p = arg; | |
1412 | ||
35ea11ff HV |
1413 | dbgarg(cmd, "index=%d, name=%s, capability=0x%x, " |
1414 | "mode=0x%x\n", p->index, p->name, | |
1415 | p->capability, p->mode); | |
a399810c | 1416 | ret = ops->vidioc_s_audio(file, fh, p); |
35ea11ff HV |
1417 | break; |
1418 | } | |
1419 | case VIDIOC_ENUMAUDOUT: | |
1420 | { | |
1421 | struct v4l2_audioout *p = arg; | |
1422 | ||
35ea11ff | 1423 | dbgarg(cmd, "Enum for index=%d\n", p->index); |
a399810c | 1424 | ret = ops->vidioc_enumaudout(file, fh, p); |
35ea11ff HV |
1425 | if (!ret) |
1426 | dbgarg2("index=%d, name=%s, capability=%d, " | |
1427 | "mode=%d\n", p->index, p->name, | |
1428 | p->capability, p->mode); | |
1429 | break; | |
1430 | } | |
1431 | case VIDIOC_G_AUDOUT: | |
1432 | { | |
1433 | struct v4l2_audioout *p = arg; | |
1434 | ||
a399810c | 1435 | ret = ops->vidioc_g_audout(file, fh, p); |
35ea11ff HV |
1436 | if (!ret) |
1437 | dbgarg2("index=%d, name=%s, capability=%d, " | |
1438 | "mode=%d\n", p->index, p->name, | |
1439 | p->capability, p->mode); | |
1440 | break; | |
1441 | } | |
1442 | case VIDIOC_S_AUDOUT: | |
1443 | { | |
1444 | struct v4l2_audioout *p = arg; | |
1445 | ||
35ea11ff HV |
1446 | dbgarg(cmd, "index=%d, name=%s, capability=%d, " |
1447 | "mode=%d\n", p->index, p->name, | |
1448 | p->capability, p->mode); | |
1449 | ||
a399810c | 1450 | ret = ops->vidioc_s_audout(file, fh, p); |
35ea11ff HV |
1451 | break; |
1452 | } | |
1453 | case VIDIOC_G_MODULATOR: | |
1454 | { | |
1455 | struct v4l2_modulator *p = arg; | |
1456 | ||
a399810c | 1457 | ret = ops->vidioc_g_modulator(file, fh, p); |
35ea11ff HV |
1458 | if (!ret) |
1459 | dbgarg(cmd, "index=%d, name=%s, " | |
1460 | "capability=%d, rangelow=%d," | |
1461 | " rangehigh=%d, txsubchans=%d\n", | |
1462 | p->index, p->name, p->capability, | |
1463 | p->rangelow, p->rangehigh, | |
1464 | p->txsubchans); | |
1465 | break; | |
1466 | } | |
1467 | case VIDIOC_S_MODULATOR: | |
1468 | { | |
1469 | struct v4l2_modulator *p = arg; | |
1470 | ||
35ea11ff HV |
1471 | dbgarg(cmd, "index=%d, name=%s, capability=%d, " |
1472 | "rangelow=%d, rangehigh=%d, txsubchans=%d\n", | |
1473 | p->index, p->name, p->capability, p->rangelow, | |
1474 | p->rangehigh, p->txsubchans); | |
a399810c | 1475 | ret = ops->vidioc_s_modulator(file, fh, p); |
35ea11ff HV |
1476 | break; |
1477 | } | |
1478 | case VIDIOC_G_CROP: | |
1479 | { | |
1480 | struct v4l2_crop *p = arg; | |
1481 | ||
35ea11ff | 1482 | dbgarg(cmd, "type=%s\n", prt_names(p->type, v4l2_type_names)); |
992efeff TS |
1483 | |
1484 | if (ops->vidioc_g_crop) { | |
1485 | ret = ops->vidioc_g_crop(file, fh, p); | |
1486 | } else { | |
1487 | /* simulate capture crop using selection api */ | |
1488 | struct v4l2_selection s = { | |
1489 | .type = p->type, | |
1490 | }; | |
1491 | ||
1492 | /* crop means compose for output devices */ | |
1493 | if (V4L2_TYPE_IS_OUTPUT(p->type)) | |
1494 | s.target = V4L2_SEL_TGT_COMPOSE_ACTIVE; | |
1495 | else | |
1496 | s.target = V4L2_SEL_TGT_CROP_ACTIVE; | |
1497 | ||
1498 | ret = ops->vidioc_g_selection(file, fh, &s); | |
1499 | ||
1500 | /* copying results to old structure on success */ | |
1501 | if (!ret) | |
1502 | p->c = s.r; | |
1503 | } | |
1504 | ||
35ea11ff HV |
1505 | if (!ret) |
1506 | dbgrect(vfd, "", &p->c); | |
1507 | break; | |
1508 | } | |
1509 | case VIDIOC_S_CROP: | |
1510 | { | |
1511 | struct v4l2_crop *p = arg; | |
1512 | ||
35ea11ff HV |
1513 | dbgarg(cmd, "type=%s\n", prt_names(p->type, v4l2_type_names)); |
1514 | dbgrect(vfd, "", &p->c); | |
992efeff TS |
1515 | |
1516 | if (ops->vidioc_s_crop) { | |
1517 | ret = ops->vidioc_s_crop(file, fh, p); | |
1518 | } else { | |
1519 | /* simulate capture crop using selection api */ | |
1520 | struct v4l2_selection s = { | |
1521 | .type = p->type, | |
1522 | .r = p->c, | |
1523 | }; | |
1524 | ||
1525 | /* crop means compose for output devices */ | |
1526 | if (V4L2_TYPE_IS_OUTPUT(p->type)) | |
1527 | s.target = V4L2_SEL_TGT_COMPOSE_ACTIVE; | |
1528 | else | |
1529 | s.target = V4L2_SEL_TGT_CROP_ACTIVE; | |
1530 | ||
1531 | ret = ops->vidioc_s_selection(file, fh, &s); | |
1532 | } | |
35ea11ff HV |
1533 | break; |
1534 | } | |
0e8caace TS |
1535 | case VIDIOC_G_SELECTION: |
1536 | { | |
1537 | struct v4l2_selection *p = arg; | |
1538 | ||
0e8caace TS |
1539 | dbgarg(cmd, "type=%s\n", prt_names(p->type, v4l2_type_names)); |
1540 | ||
1541 | ret = ops->vidioc_g_selection(file, fh, p); | |
1542 | if (!ret) | |
1543 | dbgrect(vfd, "", &p->r); | |
1544 | break; | |
1545 | } | |
1546 | case VIDIOC_S_SELECTION: | |
1547 | { | |
1548 | struct v4l2_selection *p = arg; | |
1549 | ||
0e8caace TS |
1550 | |
1551 | dbgarg(cmd, "type=%s\n", prt_names(p->type, v4l2_type_names)); | |
1552 | dbgrect(vfd, "", &p->r); | |
1553 | ||
1554 | ret = ops->vidioc_s_selection(file, fh, p); | |
1555 | break; | |
1556 | } | |
35ea11ff HV |
1557 | case VIDIOC_CROPCAP: |
1558 | { | |
1559 | struct v4l2_cropcap *p = arg; | |
1560 | ||
1561 | /*FIXME: Should also show v4l2_fract pixelaspect */ | |
35ea11ff | 1562 | dbgarg(cmd, "type=%s\n", prt_names(p->type, v4l2_type_names)); |
992efeff TS |
1563 | if (ops->vidioc_cropcap) { |
1564 | ret = ops->vidioc_cropcap(file, fh, p); | |
1565 | } else { | |
1566 | struct v4l2_selection s = { .type = p->type }; | |
1567 | ||
1568 | /* obtaining bounds */ | |
1569 | if (V4L2_TYPE_IS_OUTPUT(p->type)) | |
1570 | s.target = V4L2_SEL_TGT_COMPOSE_BOUNDS; | |
1571 | else | |
1572 | s.target = V4L2_SEL_TGT_CROP_BOUNDS; | |
1573 | ||
1574 | ret = ops->vidioc_g_selection(file, fh, &s); | |
1575 | if (ret) | |
1576 | break; | |
1577 | p->bounds = s.r; | |
1578 | ||
1579 | /* obtaining defrect */ | |
1580 | if (V4L2_TYPE_IS_OUTPUT(p->type)) | |
1581 | s.target = V4L2_SEL_TGT_COMPOSE_DEFAULT; | |
1582 | else | |
1583 | s.target = V4L2_SEL_TGT_CROP_DEFAULT; | |
1584 | ||
1585 | ret = ops->vidioc_g_selection(file, fh, &s); | |
1586 | if (ret) | |
1587 | break; | |
1588 | p->defrect = s.r; | |
1589 | ||
1590 | /* setting trivial pixelaspect */ | |
1591 | p->pixelaspect.numerator = 1; | |
1592 | p->pixelaspect.denominator = 1; | |
1593 | } | |
1594 | ||
35ea11ff HV |
1595 | if (!ret) { |
1596 | dbgrect(vfd, "bounds ", &p->bounds); | |
1597 | dbgrect(vfd, "defrect ", &p->defrect); | |
1598 | } | |
1599 | break; | |
1600 | } | |
1601 | case VIDIOC_G_JPEGCOMP: | |
1602 | { | |
1603 | struct v4l2_jpegcompression *p = arg; | |
1604 | ||
a399810c | 1605 | ret = ops->vidioc_g_jpegcomp(file, fh, p); |
35ea11ff HV |
1606 | if (!ret) |
1607 | dbgarg(cmd, "quality=%d, APPn=%d, " | |
1608 | "APP_len=%d, COM_len=%d, " | |
1609 | "jpeg_markers=%d\n", | |
1610 | p->quality, p->APPn, p->APP_len, | |
1611 | p->COM_len, p->jpeg_markers); | |
1612 | break; | |
1613 | } | |
1614 | case VIDIOC_S_JPEGCOMP: | |
1615 | { | |
1616 | struct v4l2_jpegcompression *p = arg; | |
1617 | ||
35ea11ff HV |
1618 | dbgarg(cmd, "quality=%d, APPn=%d, APP_len=%d, " |
1619 | "COM_len=%d, jpeg_markers=%d\n", | |
1620 | p->quality, p->APPn, p->APP_len, | |
1621 | p->COM_len, p->jpeg_markers); | |
93d5a30b | 1622 | ret = ops->vidioc_s_jpegcomp(file, fh, p); |
35ea11ff HV |
1623 | break; |
1624 | } | |
1625 | case VIDIOC_G_ENC_INDEX: | |
1626 | { | |
1627 | struct v4l2_enc_idx *p = arg; | |
1628 | ||
a399810c | 1629 | ret = ops->vidioc_g_enc_index(file, fh, p); |
35ea11ff HV |
1630 | if (!ret) |
1631 | dbgarg(cmd, "entries=%d, entries_cap=%d\n", | |
1632 | p->entries, p->entries_cap); | |
1633 | break; | |
1634 | } | |
1635 | case VIDIOC_ENCODER_CMD: | |
1636 | { | |
1637 | struct v4l2_encoder_cmd *p = arg; | |
1638 | ||
a399810c | 1639 | ret = ops->vidioc_encoder_cmd(file, fh, p); |
35ea11ff HV |
1640 | if (!ret) |
1641 | dbgarg(cmd, "cmd=%d, flags=%x\n", p->cmd, p->flags); | |
1642 | break; | |
1643 | } | |
1644 | case VIDIOC_TRY_ENCODER_CMD: | |
1645 | { | |
1646 | struct v4l2_encoder_cmd *p = arg; | |
1647 | ||
a399810c | 1648 | ret = ops->vidioc_try_encoder_cmd(file, fh, p); |
35ea11ff HV |
1649 | if (!ret) |
1650 | dbgarg(cmd, "cmd=%d, flags=%x\n", p->cmd, p->flags); | |
1651 | break; | |
1652 | } | |
a45c0ad5 HV |
1653 | case VIDIOC_DECODER_CMD: |
1654 | { | |
1655 | struct v4l2_decoder_cmd *p = arg; | |
1656 | ||
a45c0ad5 HV |
1657 | ret = ops->vidioc_decoder_cmd(file, fh, p); |
1658 | if (!ret) | |
1659 | dbgarg(cmd, "cmd=%d, flags=%x\n", p->cmd, p->flags); | |
1660 | break; | |
1661 | } | |
1662 | case VIDIOC_TRY_DECODER_CMD: | |
1663 | { | |
1664 | struct v4l2_decoder_cmd *p = arg; | |
1665 | ||
a45c0ad5 HV |
1666 | ret = ops->vidioc_try_decoder_cmd(file, fh, p); |
1667 | if (!ret) | |
1668 | dbgarg(cmd, "cmd=%d, flags=%x\n", p->cmd, p->flags); | |
1669 | break; | |
1670 | } | |
35ea11ff HV |
1671 | case VIDIOC_G_PARM: |
1672 | { | |
1673 | struct v4l2_streamparm *p = arg; | |
35ea11ff | 1674 | |
a399810c | 1675 | if (ops->vidioc_g_parm) { |
34796bc0 TP |
1676 | ret = check_fmt(ops, p->type); |
1677 | if (ret) | |
1678 | break; | |
a399810c | 1679 | ret = ops->vidioc_g_parm(file, fh, p); |
35ea11ff | 1680 | } else { |
9bedc7f7 HV |
1681 | v4l2_std_id std = vfd->current_norm; |
1682 | ||
93d5a30b | 1683 | ret = -EINVAL; |
35ea11ff | 1684 | if (p->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) |
3f5e1824 | 1685 | break; |
35ea11ff | 1686 | |
35ea11ff | 1687 | ret = 0; |
0c142c86 | 1688 | p->parm.capture.readbuffers = 2; |
9bedc7f7 HV |
1689 | if (ops->vidioc_g_std) |
1690 | ret = ops->vidioc_g_std(file, fh, &std); | |
9bedc7f7 HV |
1691 | if (ret == 0) |
1692 | v4l2_video_std_frame_period(std, | |
1693 | &p->parm.capture.timeperframe); | |
35ea11ff HV |
1694 | } |
1695 | ||
1696 | dbgarg(cmd, "type=%d\n", p->type); | |
1697 | break; | |
1698 | } | |
1699 | case VIDIOC_S_PARM: | |
1700 | { | |
1701 | struct v4l2_streamparm *p = arg; | |
1702 | ||
34796bc0 TP |
1703 | ret = check_fmt(ops, p->type); |
1704 | if (ret) | |
1705 | break; | |
1706 | ||
35ea11ff | 1707 | dbgarg(cmd, "type=%d\n", p->type); |
a399810c | 1708 | ret = ops->vidioc_s_parm(file, fh, p); |
35ea11ff HV |
1709 | break; |
1710 | } | |
1711 | case VIDIOC_G_TUNER: | |
1712 | { | |
1713 | struct v4l2_tuner *p = arg; | |
35ea11ff | 1714 | |
227690df HV |
1715 | p->type = (vfd->vfl_type == VFL_TYPE_RADIO) ? |
1716 | V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV; | |
a399810c | 1717 | ret = ops->vidioc_g_tuner(file, fh, p); |
35ea11ff HV |
1718 | if (!ret) |
1719 | dbgarg(cmd, "index=%d, name=%s, type=%d, " | |
1720 | "capability=0x%x, rangelow=%d, " | |
1721 | "rangehigh=%d, signal=%d, afc=%d, " | |
1722 | "rxsubchans=0x%x, audmode=%d\n", | |
1723 | p->index, p->name, p->type, | |
1724 | p->capability, p->rangelow, | |
1725 | p->rangehigh, p->signal, p->afc, | |
1726 | p->rxsubchans, p->audmode); | |
1727 | break; | |
1728 | } | |
1729 | case VIDIOC_S_TUNER: | |
1730 | { | |
1731 | struct v4l2_tuner *p = arg; | |
1732 | ||
227690df HV |
1733 | p->type = (vfd->vfl_type == VFL_TYPE_RADIO) ? |
1734 | V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV; | |
35ea11ff HV |
1735 | dbgarg(cmd, "index=%d, name=%s, type=%d, " |
1736 | "capability=0x%x, rangelow=%d, " | |
1737 | "rangehigh=%d, signal=%d, afc=%d, " | |
1738 | "rxsubchans=0x%x, audmode=%d\n", | |
1739 | p->index, p->name, p->type, | |
1740 | p->capability, p->rangelow, | |
1741 | p->rangehigh, p->signal, p->afc, | |
1742 | p->rxsubchans, p->audmode); | |
a399810c | 1743 | ret = ops->vidioc_s_tuner(file, fh, p); |
35ea11ff HV |
1744 | break; |
1745 | } | |
1746 | case VIDIOC_G_FREQUENCY: | |
1747 | { | |
1748 | struct v4l2_frequency *p = arg; | |
1749 | ||
227690df HV |
1750 | p->type = (vfd->vfl_type == VFL_TYPE_RADIO) ? |
1751 | V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV; | |
a399810c | 1752 | ret = ops->vidioc_g_frequency(file, fh, p); |
35ea11ff HV |
1753 | if (!ret) |
1754 | dbgarg(cmd, "tuner=%d, type=%d, frequency=%d\n", | |
1755 | p->tuner, p->type, p->frequency); | |
1756 | break; | |
1757 | } | |
1758 | case VIDIOC_S_FREQUENCY: | |
1759 | { | |
1760 | struct v4l2_frequency *p = arg; | |
aa07eec5 | 1761 | enum v4l2_tuner_type type; |
35ea11ff | 1762 | |
aa07eec5 HV |
1763 | type = (vfd->vfl_type == VFL_TYPE_RADIO) ? |
1764 | V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV; | |
35ea11ff HV |
1765 | dbgarg(cmd, "tuner=%d, type=%d, frequency=%d\n", |
1766 | p->tuner, p->type, p->frequency); | |
aa07eec5 HV |
1767 | if (p->type != type) |
1768 | ret = -EINVAL; | |
1769 | else | |
1770 | ret = ops->vidioc_s_frequency(file, fh, p); | |
35ea11ff HV |
1771 | break; |
1772 | } | |
1773 | case VIDIOC_G_SLICED_VBI_CAP: | |
1774 | { | |
1775 | struct v4l2_sliced_vbi_cap *p = arg; | |
35ea11ff | 1776 | |
19c96e4b TP |
1777 | /* Clear up to type, everything after type is zerod already */ |
1778 | memset(p, 0, offsetof(struct v4l2_sliced_vbi_cap, type)); | |
1779 | ||
35ea11ff | 1780 | dbgarg(cmd, "type=%s\n", prt_names(p->type, v4l2_type_names)); |
a399810c | 1781 | ret = ops->vidioc_g_sliced_vbi_cap(file, fh, p); |
35ea11ff HV |
1782 | if (!ret) |
1783 | dbgarg2("service_set=%d\n", p->service_set); | |
1784 | break; | |
1785 | } | |
1786 | case VIDIOC_LOG_STATUS: | |
1787 | { | |
e2ecb257 HV |
1788 | if (vfd->v4l2_dev) |
1789 | pr_info("%s: ================= START STATUS =================\n", | |
1790 | vfd->v4l2_dev->name); | |
a399810c | 1791 | ret = ops->vidioc_log_status(file, fh); |
e2ecb257 HV |
1792 | if (vfd->v4l2_dev) |
1793 | pr_info("%s: ================== END STATUS ==================\n", | |
1794 | vfd->v4l2_dev->name); | |
35ea11ff HV |
1795 | break; |
1796 | } | |
35ea11ff HV |
1797 | case VIDIOC_DBG_G_REGISTER: |
1798 | { | |
8ab75e3e | 1799 | #ifdef CONFIG_VIDEO_ADV_DEBUG |
aecde8b5 | 1800 | struct v4l2_dbg_register *p = arg; |
35ea11ff | 1801 | |
48ea0be0 HV |
1802 | if (!capable(CAP_SYS_ADMIN)) |
1803 | ret = -EPERM; | |
1804 | else | |
1805 | ret = ops->vidioc_g_register(file, fh, p); | |
8ab75e3e | 1806 | #endif |
35ea11ff HV |
1807 | break; |
1808 | } | |
1809 | case VIDIOC_DBG_S_REGISTER: | |
1810 | { | |
8ab75e3e | 1811 | #ifdef CONFIG_VIDEO_ADV_DEBUG |
aecde8b5 | 1812 | struct v4l2_dbg_register *p = arg; |
35ea11ff | 1813 | |
48ea0be0 HV |
1814 | if (!capable(CAP_SYS_ADMIN)) |
1815 | ret = -EPERM; | |
1816 | else | |
1817 | ret = ops->vidioc_s_register(file, fh, p); | |
8ab75e3e | 1818 | #endif |
35ea11ff HV |
1819 | break; |
1820 | } | |
aecde8b5 | 1821 | case VIDIOC_DBG_G_CHIP_IDENT: |
35ea11ff | 1822 | { |
aecde8b5 | 1823 | struct v4l2_dbg_chip_ident *p = arg; |
35ea11ff | 1824 | |
80b36e0f HV |
1825 | p->ident = V4L2_IDENT_NONE; |
1826 | p->revision = 0; | |
a399810c | 1827 | ret = ops->vidioc_g_chip_ident(file, fh, p); |
35ea11ff HV |
1828 | if (!ret) |
1829 | dbgarg(cmd, "chip_ident=%u, revision=0x%x\n", p->ident, p->revision); | |
1830 | break; | |
1831 | } | |
35ea11ff HV |
1832 | case VIDIOC_S_HW_FREQ_SEEK: |
1833 | { | |
1834 | struct v4l2_hw_freq_seek *p = arg; | |
a6cf90a9 | 1835 | enum v4l2_tuner_type type; |
35ea11ff | 1836 | |
a6cf90a9 HV |
1837 | type = (vfd->vfl_type == VFL_TYPE_RADIO) ? |
1838 | V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV; | |
35ea11ff | 1839 | dbgarg(cmd, |
a6cf90a9 HV |
1840 | "tuner=%u, type=%u, seek_upward=%u, wrap_around=%u, spacing=%u\n", |
1841 | p->tuner, p->type, p->seek_upward, p->wrap_around, p->spacing); | |
1842 | if (p->type != type) | |
1843 | ret = -EINVAL; | |
1844 | else | |
1845 | ret = ops->vidioc_s_hw_freq_seek(file, fh, p); | |
a399810c HV |
1846 | break; |
1847 | } | |
74d83fa0 MCC |
1848 | case VIDIOC_ENUM_FRAMESIZES: |
1849 | { | |
1850 | struct v4l2_frmsizeenum *p = arg; | |
1851 | ||
74d83fa0 MCC |
1852 | ret = ops->vidioc_enum_framesizes(file, fh, p); |
1853 | dbgarg(cmd, | |
d1afe425 MCC |
1854 | "index=%d, pixelformat=%c%c%c%c, type=%d ", |
1855 | p->index, | |
1856 | (p->pixel_format & 0xff), | |
1857 | (p->pixel_format >> 8) & 0xff, | |
1858 | (p->pixel_format >> 16) & 0xff, | |
1859 | (p->pixel_format >> 24) & 0xff, | |
1860 | p->type); | |
74d83fa0 MCC |
1861 | switch (p->type) { |
1862 | case V4L2_FRMSIZE_TYPE_DISCRETE: | |
d33fbcbb | 1863 | dbgarg3("width = %d, height=%d\n", |
74d83fa0 MCC |
1864 | p->discrete.width, p->discrete.height); |
1865 | break; | |
1866 | case V4L2_FRMSIZE_TYPE_STEPWISE: | |
d33fbcbb | 1867 | dbgarg3("min %dx%d, max %dx%d, step %dx%d\n", |
74d83fa0 MCC |
1868 | p->stepwise.min_width, p->stepwise.min_height, |
1869 | p->stepwise.step_width, p->stepwise.step_height, | |
1870 | p->stepwise.max_width, p->stepwise.max_height); | |
1871 | break; | |
1872 | case V4L2_FRMSIZE_TYPE_CONTINUOUS: | |
d33fbcbb | 1873 | dbgarg3("continuous\n"); |
74d83fa0 MCC |
1874 | break; |
1875 | default: | |
d33fbcbb | 1876 | dbgarg3("- Unknown type!\n"); |
74d83fa0 MCC |
1877 | } |
1878 | ||
1879 | break; | |
1880 | } | |
1881 | case VIDIOC_ENUM_FRAMEINTERVALS: | |
1882 | { | |
1883 | struct v4l2_frmivalenum *p = arg; | |
1884 | ||
74d83fa0 MCC |
1885 | ret = ops->vidioc_enum_frameintervals(file, fh, p); |
1886 | dbgarg(cmd, | |
1887 | "index=%d, pixelformat=%d, width=%d, height=%d, type=%d ", | |
1888 | p->index, p->pixel_format, | |
1889 | p->width, p->height, p->type); | |
1890 | switch (p->type) { | |
1891 | case V4L2_FRMIVAL_TYPE_DISCRETE: | |
1892 | dbgarg2("fps=%d/%d\n", | |
1893 | p->discrete.numerator, | |
1894 | p->discrete.denominator); | |
1895 | break; | |
1896 | case V4L2_FRMIVAL_TYPE_STEPWISE: | |
1958578d MCC |
1897 | dbgarg2("min=%d/%d, max=%d/%d, step=%d/%d\n", |
1898 | p->stepwise.min.numerator, | |
1899 | p->stepwise.min.denominator, | |
1900 | p->stepwise.max.numerator, | |
1901 | p->stepwise.max.denominator, | |
1902 | p->stepwise.step.numerator, | |
1903 | p->stepwise.step.denominator); | |
74d83fa0 MCC |
1904 | break; |
1905 | case V4L2_FRMIVAL_TYPE_CONTINUOUS: | |
1906 | dbgarg2("continuous\n"); | |
1907 | break; | |
1908 | default: | |
1909 | dbgarg2("- Unknown type!\n"); | |
1910 | } | |
1911 | break; | |
1912 | } | |
b6456c0c MK |
1913 | case VIDIOC_ENUM_DV_PRESETS: |
1914 | { | |
1915 | struct v4l2_dv_enum_preset *p = arg; | |
1916 | ||
b6456c0c MK |
1917 | ret = ops->vidioc_enum_dv_presets(file, fh, p); |
1918 | if (!ret) | |
1919 | dbgarg(cmd, | |
1920 | "index=%d, preset=%d, name=%s, width=%d," | |
1921 | " height=%d ", | |
1922 | p->index, p->preset, p->name, p->width, | |
1923 | p->height); | |
1924 | break; | |
1925 | } | |
1926 | case VIDIOC_S_DV_PRESET: | |
1927 | { | |
1928 | struct v4l2_dv_preset *p = arg; | |
1929 | ||
b6456c0c MK |
1930 | dbgarg(cmd, "preset=%d\n", p->preset); |
1931 | ret = ops->vidioc_s_dv_preset(file, fh, p); | |
1932 | break; | |
1933 | } | |
1934 | case VIDIOC_G_DV_PRESET: | |
1935 | { | |
1936 | struct v4l2_dv_preset *p = arg; | |
1937 | ||
b6456c0c MK |
1938 | ret = ops->vidioc_g_dv_preset(file, fh, p); |
1939 | if (!ret) | |
1940 | dbgarg(cmd, "preset=%d\n", p->preset); | |
1941 | break; | |
1942 | } | |
1943 | case VIDIOC_QUERY_DV_PRESET: | |
1944 | { | |
1945 | struct v4l2_dv_preset *p = arg; | |
1946 | ||
b6456c0c MK |
1947 | ret = ops->vidioc_query_dv_preset(file, fh, p); |
1948 | if (!ret) | |
1949 | dbgarg(cmd, "preset=%d\n", p->preset); | |
1950 | break; | |
1951 | } | |
1952 | case VIDIOC_S_DV_TIMINGS: | |
1953 | { | |
1954 | struct v4l2_dv_timings *p = arg; | |
1955 | ||
5d7758ee | 1956 | dbgtimings(vfd, p); |
b6456c0c MK |
1957 | switch (p->type) { |
1958 | case V4L2_DV_BT_656_1120: | |
b6456c0c MK |
1959 | ret = ops->vidioc_s_dv_timings(file, fh, p); |
1960 | break; | |
1961 | default: | |
5d7758ee | 1962 | ret = -EINVAL; |
b6456c0c MK |
1963 | break; |
1964 | } | |
1965 | break; | |
1966 | } | |
1967 | case VIDIOC_G_DV_TIMINGS: | |
1968 | { | |
1969 | struct v4l2_dv_timings *p = arg; | |
1970 | ||
b6456c0c | 1971 | ret = ops->vidioc_g_dv_timings(file, fh, p); |
5d7758ee HV |
1972 | if (!ret) |
1973 | dbgtimings(vfd, p); | |
1974 | break; | |
1975 | } | |
1976 | case VIDIOC_ENUM_DV_TIMINGS: | |
1977 | { | |
1978 | struct v4l2_enum_dv_timings *p = arg; | |
1979 | ||
1980 | if (!ops->vidioc_enum_dv_timings) | |
1981 | break; | |
1982 | ||
1983 | ret = ops->vidioc_enum_dv_timings(file, fh, p); | |
b6456c0c | 1984 | if (!ret) { |
5d7758ee HV |
1985 | dbgarg(cmd, "index=%d: ", p->index); |
1986 | dbgtimings(vfd, &p->timings); | |
1987 | } | |
1988 | break; | |
1989 | } | |
1990 | case VIDIOC_QUERY_DV_TIMINGS: | |
1991 | { | |
1992 | struct v4l2_dv_timings *p = arg; | |
1993 | ||
1994 | if (!ops->vidioc_query_dv_timings) | |
1995 | break; | |
1996 | ||
1997 | ret = ops->vidioc_query_dv_timings(file, fh, p); | |
1998 | if (!ret) | |
1999 | dbgtimings(vfd, p); | |
2000 | break; | |
2001 | } | |
2002 | case VIDIOC_DV_TIMINGS_CAP: | |
2003 | { | |
2004 | struct v4l2_dv_timings_cap *p = arg; | |
2005 | ||
2006 | if (!ops->vidioc_dv_timings_cap) | |
2007 | break; | |
2008 | ||
2009 | ret = ops->vidioc_dv_timings_cap(file, fh, p); | |
2010 | if (ret) | |
2011 | break; | |
2012 | switch (p->type) { | |
2013 | case V4L2_DV_BT_656_1120: | |
2014 | dbgarg(cmd, | |
2015 | "type=%d, width=%u-%u, height=%u-%u, " | |
2016 | "pixelclock=%llu-%llu, standards=%x, capabilities=%x ", | |
2017 | p->type, | |
2018 | p->bt.min_width, p->bt.max_width, | |
2019 | p->bt.min_height, p->bt.max_height, | |
2020 | p->bt.min_pixelclock, p->bt.max_pixelclock, | |
2021 | p->bt.standards, p->bt.capabilities); | |
2022 | break; | |
2023 | default: | |
2024 | dbgarg(cmd, "unknown type "); | |
2025 | break; | |
b6456c0c MK |
2026 | } |
2027 | break; | |
2028 | } | |
d3d7c963 SA |
2029 | case VIDIOC_DQEVENT: |
2030 | { | |
2031 | struct v4l2_event *ev = arg; | |
2032 | ||
d3d7c963 SA |
2033 | ret = v4l2_event_dequeue(fh, ev, file->f_flags & O_NONBLOCK); |
2034 | if (ret < 0) { | |
2035 | dbgarg(cmd, "no pending events?"); | |
2036 | break; | |
2037 | } | |
2038 | dbgarg(cmd, | |
2039 | "pending=%d, type=0x%8.8x, sequence=%d, " | |
2040 | "timestamp=%lu.%9.9lu ", | |
2041 | ev->pending, ev->type, ev->sequence, | |
2042 | ev->timestamp.tv_sec, ev->timestamp.tv_nsec); | |
2043 | break; | |
2044 | } | |
2045 | case VIDIOC_SUBSCRIBE_EVENT: | |
2046 | { | |
2047 | struct v4l2_event_subscription *sub = arg; | |
2048 | ||
d3d7c963 SA |
2049 | ret = ops->vidioc_subscribe_event(fh, sub); |
2050 | if (ret < 0) { | |
2051 | dbgarg(cmd, "failed, ret=%ld", ret); | |
2052 | break; | |
2053 | } | |
2054 | dbgarg(cmd, "type=0x%8.8x", sub->type); | |
2055 | break; | |
2056 | } | |
2057 | case VIDIOC_UNSUBSCRIBE_EVENT: | |
2058 | { | |
2059 | struct v4l2_event_subscription *sub = arg; | |
2060 | ||
d3d7c963 SA |
2061 | ret = ops->vidioc_unsubscribe_event(fh, sub); |
2062 | if (ret < 0) { | |
2063 | dbgarg(cmd, "failed, ret=%ld", ret); | |
2064 | break; | |
2065 | } | |
2066 | dbgarg(cmd, "type=0x%8.8x", sub->type); | |
2067 | break; | |
2068 | } | |
2150158b GL |
2069 | case VIDIOC_CREATE_BUFS: |
2070 | { | |
2071 | struct v4l2_create_buffers *create = arg; | |
2072 | ||
2150158b GL |
2073 | ret = check_fmt(ops, create->format.type); |
2074 | if (ret) | |
2075 | break; | |
2076 | ||
2077 | ret = ops->vidioc_create_bufs(file, fh, create); | |
2078 | ||
2079 | dbgarg(cmd, "count=%d @ %d\n", create->count, create->index); | |
2080 | break; | |
2081 | } | |
2082 | case VIDIOC_PREPARE_BUF: | |
2083 | { | |
2084 | struct v4l2_buffer *b = arg; | |
2085 | ||
2150158b GL |
2086 | ret = check_fmt(ops, b->type); |
2087 | if (ret) | |
2088 | break; | |
2089 | ||
2090 | ret = ops->vidioc_prepare_buf(file, fh, b); | |
2091 | ||
2092 | dbgarg(cmd, "index=%d", b->index); | |
2093 | break; | |
2094 | } | |
a399810c | 2095 | default: |
a399810c HV |
2096 | if (!ops->vidioc_default) |
2097 | break; | |
4b902fec HV |
2098 | ret = ops->vidioc_default(file, fh, use_fh_prio ? |
2099 | v4l2_prio_check(vfd->prio, vfh->prio) >= 0 : 0, | |
2100 | cmd, arg); | |
35ea11ff | 2101 | break; |
35ea11ff HV |
2102 | } /* switch */ |
2103 | ||
2104 | if (vfd->debug & V4L2_DEBUG_IOCTL_ARG) { | |
2105 | if (ret < 0) { | |
2106 | v4l_print_ioctl(vfd->name, cmd); | |
069b7479 | 2107 | printk(KERN_CONT " error %ld\n", ret); |
35ea11ff HV |
2108 | } |
2109 | } | |
2110 | ||
2111 | return ret; | |
2112 | } | |
2113 | ||
d14e6d76 PO |
2114 | static int check_array_args(unsigned int cmd, void *parg, size_t *array_size, |
2115 | void * __user *user_ptr, void ***kernel_ptr) | |
2116 | { | |
2117 | int ret = 0; | |
2118 | ||
2119 | switch (cmd) { | |
2120 | case VIDIOC_QUERYBUF: | |
2121 | case VIDIOC_QBUF: | |
2122 | case VIDIOC_DQBUF: { | |
2123 | struct v4l2_buffer *buf = parg; | |
2124 | ||
2125 | if (V4L2_TYPE_IS_MULTIPLANAR(buf->type) && buf->length > 0) { | |
2126 | if (buf->length > VIDEO_MAX_PLANES) { | |
2127 | ret = -EINVAL; | |
2128 | break; | |
2129 | } | |
2130 | *user_ptr = (void __user *)buf->m.planes; | |
2ef40370 | 2131 | *kernel_ptr = (void *)&buf->m.planes; |
d14e6d76 PO |
2132 | *array_size = sizeof(struct v4l2_plane) * buf->length; |
2133 | ret = 1; | |
2134 | } | |
2135 | break; | |
2136 | } | |
2137 | ||
2138 | case VIDIOC_S_EXT_CTRLS: | |
2139 | case VIDIOC_G_EXT_CTRLS: | |
2140 | case VIDIOC_TRY_EXT_CTRLS: { | |
2141 | struct v4l2_ext_controls *ctrls = parg; | |
2142 | ||
2143 | if (ctrls->count != 0) { | |
6c06108b DC |
2144 | if (ctrls->count > V4L2_CID_MAX_CTRLS) { |
2145 | ret = -EINVAL; | |
2146 | break; | |
2147 | } | |
d14e6d76 | 2148 | *user_ptr = (void __user *)ctrls->controls; |
2ef40370 | 2149 | *kernel_ptr = (void *)&ctrls->controls; |
d14e6d76 PO |
2150 | *array_size = sizeof(struct v4l2_ext_control) |
2151 | * ctrls->count; | |
2152 | ret = 1; | |
2153 | } | |
2154 | break; | |
2155 | } | |
2156 | } | |
2157 | ||
2158 | return ret; | |
2159 | } | |
2160 | ||
fc0a8079 LP |
2161 | long |
2162 | video_usercopy(struct file *file, unsigned int cmd, unsigned long arg, | |
2163 | v4l2_kioctl func) | |
35ea11ff HV |
2164 | { |
2165 | char sbuf[128]; | |
2166 | void *mbuf = NULL; | |
1d94aa36 | 2167 | void *parg = (void *)arg; |
069b7479 | 2168 | long err = -EINVAL; |
d14e6d76 PO |
2169 | bool has_array_args; |
2170 | size_t array_size = 0; | |
35ea11ff | 2171 | void __user *user_ptr = NULL; |
d14e6d76 | 2172 | void **kernel_ptr = NULL; |
35ea11ff | 2173 | |
35ea11ff | 2174 | /* Copy arguments into temp kernel buffer */ |
337f9d20 | 2175 | if (_IOC_DIR(cmd) != _IOC_NONE) { |
35ea11ff HV |
2176 | if (_IOC_SIZE(cmd) <= sizeof(sbuf)) { |
2177 | parg = sbuf; | |
2178 | } else { | |
2179 | /* too big to allocate from stack */ | |
2180 | mbuf = kmalloc(_IOC_SIZE(cmd), GFP_KERNEL); | |
2181 | if (NULL == mbuf) | |
2182 | return -ENOMEM; | |
2183 | parg = mbuf; | |
2184 | } | |
2185 | ||
2186 | err = -EFAULT; | |
19c96e4b | 2187 | if (_IOC_DIR(cmd) & _IOC_WRITE) { |
27cd2aba HV |
2188 | unsigned int n = _IOC_SIZE(cmd); |
2189 | ||
2190 | /* | |
2191 | * In some cases, only a few fields are used as input, | |
2192 | * i.e. when the app sets "index" and then the driver | |
2193 | * fills in the rest of the structure for the thing | |
2194 | * with that index. We only need to copy up the first | |
2195 | * non-input field. | |
2196 | */ | |
2197 | if (v4l2_is_known_ioctl(cmd)) { | |
2198 | u32 flags = v4l2_ioctls[_IOC_NR(cmd)].flags; | |
2199 | if (flags & INFO_FL_CLEAR_MASK) | |
2200 | n = (flags & INFO_FL_CLEAR_MASK) >> 16; | |
2201 | } | |
19c96e4b TP |
2202 | |
2203 | if (copy_from_user(parg, (void __user *)arg, n)) | |
35ea11ff | 2204 | goto out; |
19c96e4b TP |
2205 | |
2206 | /* zero out anything we don't copy from userspace */ | |
2207 | if (n < _IOC_SIZE(cmd)) | |
2208 | memset((u8 *)parg + n, 0, _IOC_SIZE(cmd) - n); | |
337f9d20 TP |
2209 | } else { |
2210 | /* read-only ioctl */ | |
2211 | memset(parg, 0, _IOC_SIZE(cmd)); | |
19c96e4b | 2212 | } |
35ea11ff HV |
2213 | } |
2214 | ||
d14e6d76 PO |
2215 | err = check_array_args(cmd, parg, &array_size, &user_ptr, &kernel_ptr); |
2216 | if (err < 0) | |
2217 | goto out; | |
2218 | has_array_args = err; | |
35ea11ff | 2219 | |
d14e6d76 PO |
2220 | if (has_array_args) { |
2221 | /* | |
2222 | * When adding new types of array args, make sure that the | |
2223 | * parent argument to ioctl (which contains the pointer to the | |
2224 | * array) fits into sbuf (so that mbuf will still remain | |
2225 | * unused up to here). | |
2226 | */ | |
2227 | mbuf = kmalloc(array_size, GFP_KERNEL); | |
2228 | err = -ENOMEM; | |
2229 | if (NULL == mbuf) | |
2230 | goto out_array_args; | |
2231 | err = -EFAULT; | |
2232 | if (copy_from_user(mbuf, user_ptr, array_size)) | |
2233 | goto out_array_args; | |
2234 | *kernel_ptr = mbuf; | |
35ea11ff HV |
2235 | } |
2236 | ||
2237 | /* Handles IOCTL */ | |
fc0a8079 | 2238 | err = func(file, cmd, parg); |
35ea11ff | 2239 | if (err == -ENOIOCTLCMD) |
02bbb814 | 2240 | err = -ENOTTY; |
35ea11ff | 2241 | |
d14e6d76 PO |
2242 | if (has_array_args) { |
2243 | *kernel_ptr = user_ptr; | |
2244 | if (copy_to_user(user_ptr, mbuf, array_size)) | |
35ea11ff | 2245 | err = -EFAULT; |
d14e6d76 | 2246 | goto out_array_args; |
35ea11ff | 2247 | } |
5d7758ee HV |
2248 | /* VIDIOC_QUERY_DV_TIMINGS can return an error, but still have valid |
2249 | results that must be returned. */ | |
2250 | if (err < 0 && cmd != VIDIOC_QUERY_DV_TIMINGS) | |
35ea11ff HV |
2251 | goto out; |
2252 | ||
d14e6d76 | 2253 | out_array_args: |
35ea11ff HV |
2254 | /* Copy results into user buffer */ |
2255 | switch (_IOC_DIR(cmd)) { | |
2256 | case _IOC_READ: | |
2257 | case (_IOC_WRITE | _IOC_READ): | |
2258 | if (copy_to_user((void __user *)arg, parg, _IOC_SIZE(cmd))) | |
2259 | err = -EFAULT; | |
2260 | break; | |
2261 | } | |
2262 | ||
2263 | out: | |
2264 | kfree(mbuf); | |
2265 | return err; | |
2266 | } | |
fc0a8079 LP |
2267 | EXPORT_SYMBOL(video_usercopy); |
2268 | ||
2269 | long video_ioctl2(struct file *file, | |
2270 | unsigned int cmd, unsigned long arg) | |
2271 | { | |
2272 | return video_usercopy(file, cmd, arg, __video_do_ioctl); | |
2273 | } | |
8a522c91 | 2274 | EXPORT_SYMBOL(video_ioctl2); |