]>
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> | |
19 | ||
35ea11ff HV |
20 | #include <linux/videodev2.h> |
21 | ||
35ea11ff HV |
22 | #include <media/v4l2-common.h> |
23 | #include <media/v4l2-ioctl.h> | |
11bbc1ca | 24 | #include <media/v4l2-ctrls.h> |
d3d7c963 SA |
25 | #include <media/v4l2-fh.h> |
26 | #include <media/v4l2-event.h> | |
80b36e0f | 27 | #include <media/v4l2-chip-ident.h> |
35ea11ff HV |
28 | |
29 | #define dbgarg(cmd, fmt, arg...) \ | |
30 | do { \ | |
31 | if (vfd->debug & V4L2_DEBUG_IOCTL_ARG) { \ | |
32 | printk(KERN_DEBUG "%s: ", vfd->name); \ | |
33 | v4l_printk_ioctl(cmd); \ | |
34 | printk(" " fmt, ## arg); \ | |
35 | } \ | |
36 | } while (0) | |
37 | ||
38 | #define dbgarg2(fmt, arg...) \ | |
39 | do { \ | |
40 | if (vfd->debug & V4L2_DEBUG_IOCTL_ARG) \ | |
41 | printk(KERN_DEBUG "%s: " fmt, vfd->name, ## arg);\ | |
42 | } while (0) | |
43 | ||
d33fbcbb MCC |
44 | #define dbgarg3(fmt, arg...) \ |
45 | do { \ | |
46 | if (vfd->debug & V4L2_DEBUG_IOCTL_ARG) \ | |
47 | printk(KERN_CONT "%s: " fmt, vfd->name, ## arg);\ | |
48 | } while (0) | |
49 | ||
7ecc0cf9 TP |
50 | /* Zero out the end of the struct pointed to by p. Everthing after, but |
51 | * not including, the specified field is cleared. */ | |
52 | #define CLEAR_AFTER_FIELD(p, field) \ | |
53 | memset((u8 *)(p) + offsetof(typeof(*(p)), field) + sizeof((p)->field), \ | |
54 | 0, sizeof(*(p)) - offsetof(typeof(*(p)), field) - sizeof((p)->field)) | |
55 | ||
35ea11ff HV |
56 | struct std_descr { |
57 | v4l2_std_id std; | |
58 | const char *descr; | |
59 | }; | |
60 | ||
61 | static const struct std_descr standards[] = { | |
62 | { V4L2_STD_NTSC, "NTSC" }, | |
63 | { V4L2_STD_NTSC_M, "NTSC-M" }, | |
64 | { V4L2_STD_NTSC_M_JP, "NTSC-M-JP" }, | |
65 | { V4L2_STD_NTSC_M_KR, "NTSC-M-KR" }, | |
66 | { V4L2_STD_NTSC_443, "NTSC-443" }, | |
67 | { V4L2_STD_PAL, "PAL" }, | |
68 | { V4L2_STD_PAL_BG, "PAL-BG" }, | |
69 | { V4L2_STD_PAL_B, "PAL-B" }, | |
70 | { V4L2_STD_PAL_B1, "PAL-B1" }, | |
71 | { V4L2_STD_PAL_G, "PAL-G" }, | |
72 | { V4L2_STD_PAL_H, "PAL-H" }, | |
73 | { V4L2_STD_PAL_I, "PAL-I" }, | |
74 | { V4L2_STD_PAL_DK, "PAL-DK" }, | |
75 | { V4L2_STD_PAL_D, "PAL-D" }, | |
76 | { V4L2_STD_PAL_D1, "PAL-D1" }, | |
77 | { V4L2_STD_PAL_K, "PAL-K" }, | |
78 | { V4L2_STD_PAL_M, "PAL-M" }, | |
79 | { V4L2_STD_PAL_N, "PAL-N" }, | |
80 | { V4L2_STD_PAL_Nc, "PAL-Nc" }, | |
81 | { V4L2_STD_PAL_60, "PAL-60" }, | |
82 | { V4L2_STD_SECAM, "SECAM" }, | |
83 | { V4L2_STD_SECAM_B, "SECAM-B" }, | |
84 | { V4L2_STD_SECAM_G, "SECAM-G" }, | |
85 | { V4L2_STD_SECAM_H, "SECAM-H" }, | |
86 | { V4L2_STD_SECAM_DK, "SECAM-DK" }, | |
87 | { V4L2_STD_SECAM_D, "SECAM-D" }, | |
88 | { V4L2_STD_SECAM_K, "SECAM-K" }, | |
89 | { V4L2_STD_SECAM_K1, "SECAM-K1" }, | |
90 | { V4L2_STD_SECAM_L, "SECAM-L" }, | |
91 | { V4L2_STD_SECAM_LC, "SECAM-Lc" }, | |
92 | { 0, "Unknown" } | |
93 | }; | |
94 | ||
95 | /* video4linux standard ID conversion to standard name | |
96 | */ | |
97 | const char *v4l2_norm_to_name(v4l2_std_id id) | |
98 | { | |
99 | u32 myid = id; | |
100 | int i; | |
101 | ||
102 | /* HACK: ppc32 architecture doesn't have __ucmpdi2 function to handle | |
103 | 64 bit comparations. So, on that architecture, with some gcc | |
104 | variants, compilation fails. Currently, the max value is 30bit wide. | |
105 | */ | |
106 | BUG_ON(myid != id); | |
107 | ||
108 | for (i = 0; standards[i].std; i++) | |
109 | if (myid == standards[i].std) | |
110 | break; | |
111 | return standards[i].descr; | |
112 | } | |
113 | EXPORT_SYMBOL(v4l2_norm_to_name); | |
114 | ||
51f0b8d5 TP |
115 | /* Returns frame period for the given standard */ |
116 | void v4l2_video_std_frame_period(int id, struct v4l2_fract *frameperiod) | |
117 | { | |
118 | if (id & V4L2_STD_525_60) { | |
119 | frameperiod->numerator = 1001; | |
120 | frameperiod->denominator = 30000; | |
121 | } else { | |
122 | frameperiod->numerator = 1; | |
123 | frameperiod->denominator = 25; | |
124 | } | |
125 | } | |
126 | EXPORT_SYMBOL(v4l2_video_std_frame_period); | |
127 | ||
35ea11ff HV |
128 | /* Fill in the fields of a v4l2_standard structure according to the |
129 | 'id' and 'transmission' parameters. Returns negative on error. */ | |
130 | int v4l2_video_std_construct(struct v4l2_standard *vs, | |
131 | int id, const char *name) | |
132 | { | |
51f0b8d5 TP |
133 | vs->id = id; |
134 | v4l2_video_std_frame_period(id, &vs->frameperiod); | |
135 | vs->framelines = (id & V4L2_STD_525_60) ? 525 : 625; | |
35ea11ff HV |
136 | strlcpy(vs->name, name, sizeof(vs->name)); |
137 | return 0; | |
138 | } | |
139 | EXPORT_SYMBOL(v4l2_video_std_construct); | |
140 | ||
141 | /* ----------------------------------------------------------------- */ | |
142 | /* some arrays for pretty-printing debug messages of enum types */ | |
143 | ||
144 | const char *v4l2_field_names[] = { | |
145 | [V4L2_FIELD_ANY] = "any", | |
146 | [V4L2_FIELD_NONE] = "none", | |
147 | [V4L2_FIELD_TOP] = "top", | |
148 | [V4L2_FIELD_BOTTOM] = "bottom", | |
149 | [V4L2_FIELD_INTERLACED] = "interlaced", | |
150 | [V4L2_FIELD_SEQ_TB] = "seq-tb", | |
151 | [V4L2_FIELD_SEQ_BT] = "seq-bt", | |
152 | [V4L2_FIELD_ALTERNATE] = "alternate", | |
153 | [V4L2_FIELD_INTERLACED_TB] = "interlaced-tb", | |
154 | [V4L2_FIELD_INTERLACED_BT] = "interlaced-bt", | |
155 | }; | |
156 | EXPORT_SYMBOL(v4l2_field_names); | |
157 | ||
158 | const char *v4l2_type_names[] = { | |
159 | [V4L2_BUF_TYPE_VIDEO_CAPTURE] = "vid-cap", | |
160 | [V4L2_BUF_TYPE_VIDEO_OVERLAY] = "vid-overlay", | |
161 | [V4L2_BUF_TYPE_VIDEO_OUTPUT] = "vid-out", | |
162 | [V4L2_BUF_TYPE_VBI_CAPTURE] = "vbi-cap", | |
163 | [V4L2_BUF_TYPE_VBI_OUTPUT] = "vbi-out", | |
164 | [V4L2_BUF_TYPE_SLICED_VBI_CAPTURE] = "sliced-vbi-cap", | |
165 | [V4L2_BUF_TYPE_SLICED_VBI_OUTPUT] = "sliced-vbi-out", | |
166 | [V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY] = "vid-out-overlay", | |
f8f3914c PO |
167 | [V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE] = "vid-cap-mplane", |
168 | [V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE] = "vid-out-mplane", | |
35ea11ff HV |
169 | }; |
170 | EXPORT_SYMBOL(v4l2_type_names); | |
171 | ||
172 | static const char *v4l2_memory_names[] = { | |
173 | [V4L2_MEMORY_MMAP] = "mmap", | |
174 | [V4L2_MEMORY_USERPTR] = "userptr", | |
175 | [V4L2_MEMORY_OVERLAY] = "overlay", | |
176 | }; | |
177 | ||
178 | #define prt_names(a, arr) ((((a) >= 0) && ((a) < ARRAY_SIZE(arr))) ? \ | |
179 | arr[a] : "unknown") | |
180 | ||
181 | /* ------------------------------------------------------------------ */ | |
182 | /* debug help functions */ | |
35ea11ff HV |
183 | static const char *v4l2_ioctls[] = { |
184 | [_IOC_NR(VIDIOC_QUERYCAP)] = "VIDIOC_QUERYCAP", | |
185 | [_IOC_NR(VIDIOC_RESERVED)] = "VIDIOC_RESERVED", | |
186 | [_IOC_NR(VIDIOC_ENUM_FMT)] = "VIDIOC_ENUM_FMT", | |
187 | [_IOC_NR(VIDIOC_G_FMT)] = "VIDIOC_G_FMT", | |
188 | [_IOC_NR(VIDIOC_S_FMT)] = "VIDIOC_S_FMT", | |
189 | [_IOC_NR(VIDIOC_REQBUFS)] = "VIDIOC_REQBUFS", | |
190 | [_IOC_NR(VIDIOC_QUERYBUF)] = "VIDIOC_QUERYBUF", | |
191 | [_IOC_NR(VIDIOC_G_FBUF)] = "VIDIOC_G_FBUF", | |
192 | [_IOC_NR(VIDIOC_S_FBUF)] = "VIDIOC_S_FBUF", | |
193 | [_IOC_NR(VIDIOC_OVERLAY)] = "VIDIOC_OVERLAY", | |
194 | [_IOC_NR(VIDIOC_QBUF)] = "VIDIOC_QBUF", | |
195 | [_IOC_NR(VIDIOC_DQBUF)] = "VIDIOC_DQBUF", | |
196 | [_IOC_NR(VIDIOC_STREAMON)] = "VIDIOC_STREAMON", | |
197 | [_IOC_NR(VIDIOC_STREAMOFF)] = "VIDIOC_STREAMOFF", | |
198 | [_IOC_NR(VIDIOC_G_PARM)] = "VIDIOC_G_PARM", | |
199 | [_IOC_NR(VIDIOC_S_PARM)] = "VIDIOC_S_PARM", | |
200 | [_IOC_NR(VIDIOC_G_STD)] = "VIDIOC_G_STD", | |
201 | [_IOC_NR(VIDIOC_S_STD)] = "VIDIOC_S_STD", | |
202 | [_IOC_NR(VIDIOC_ENUMSTD)] = "VIDIOC_ENUMSTD", | |
203 | [_IOC_NR(VIDIOC_ENUMINPUT)] = "VIDIOC_ENUMINPUT", | |
204 | [_IOC_NR(VIDIOC_G_CTRL)] = "VIDIOC_G_CTRL", | |
205 | [_IOC_NR(VIDIOC_S_CTRL)] = "VIDIOC_S_CTRL", | |
206 | [_IOC_NR(VIDIOC_G_TUNER)] = "VIDIOC_G_TUNER", | |
207 | [_IOC_NR(VIDIOC_S_TUNER)] = "VIDIOC_S_TUNER", | |
208 | [_IOC_NR(VIDIOC_G_AUDIO)] = "VIDIOC_G_AUDIO", | |
209 | [_IOC_NR(VIDIOC_S_AUDIO)] = "VIDIOC_S_AUDIO", | |
210 | [_IOC_NR(VIDIOC_QUERYCTRL)] = "VIDIOC_QUERYCTRL", | |
211 | [_IOC_NR(VIDIOC_QUERYMENU)] = "VIDIOC_QUERYMENU", | |
212 | [_IOC_NR(VIDIOC_G_INPUT)] = "VIDIOC_G_INPUT", | |
213 | [_IOC_NR(VIDIOC_S_INPUT)] = "VIDIOC_S_INPUT", | |
214 | [_IOC_NR(VIDIOC_G_OUTPUT)] = "VIDIOC_G_OUTPUT", | |
215 | [_IOC_NR(VIDIOC_S_OUTPUT)] = "VIDIOC_S_OUTPUT", | |
216 | [_IOC_NR(VIDIOC_ENUMOUTPUT)] = "VIDIOC_ENUMOUTPUT", | |
217 | [_IOC_NR(VIDIOC_G_AUDOUT)] = "VIDIOC_G_AUDOUT", | |
218 | [_IOC_NR(VIDIOC_S_AUDOUT)] = "VIDIOC_S_AUDOUT", | |
219 | [_IOC_NR(VIDIOC_G_MODULATOR)] = "VIDIOC_G_MODULATOR", | |
220 | [_IOC_NR(VIDIOC_S_MODULATOR)] = "VIDIOC_S_MODULATOR", | |
221 | [_IOC_NR(VIDIOC_G_FREQUENCY)] = "VIDIOC_G_FREQUENCY", | |
222 | [_IOC_NR(VIDIOC_S_FREQUENCY)] = "VIDIOC_S_FREQUENCY", | |
223 | [_IOC_NR(VIDIOC_CROPCAP)] = "VIDIOC_CROPCAP", | |
224 | [_IOC_NR(VIDIOC_G_CROP)] = "VIDIOC_G_CROP", | |
225 | [_IOC_NR(VIDIOC_S_CROP)] = "VIDIOC_S_CROP", | |
226 | [_IOC_NR(VIDIOC_G_JPEGCOMP)] = "VIDIOC_G_JPEGCOMP", | |
227 | [_IOC_NR(VIDIOC_S_JPEGCOMP)] = "VIDIOC_S_JPEGCOMP", | |
228 | [_IOC_NR(VIDIOC_QUERYSTD)] = "VIDIOC_QUERYSTD", | |
229 | [_IOC_NR(VIDIOC_TRY_FMT)] = "VIDIOC_TRY_FMT", | |
230 | [_IOC_NR(VIDIOC_ENUMAUDIO)] = "VIDIOC_ENUMAUDIO", | |
231 | [_IOC_NR(VIDIOC_ENUMAUDOUT)] = "VIDIOC_ENUMAUDOUT", | |
232 | [_IOC_NR(VIDIOC_G_PRIORITY)] = "VIDIOC_G_PRIORITY", | |
233 | [_IOC_NR(VIDIOC_S_PRIORITY)] = "VIDIOC_S_PRIORITY", | |
234 | [_IOC_NR(VIDIOC_G_SLICED_VBI_CAP)] = "VIDIOC_G_SLICED_VBI_CAP", | |
235 | [_IOC_NR(VIDIOC_LOG_STATUS)] = "VIDIOC_LOG_STATUS", | |
236 | [_IOC_NR(VIDIOC_G_EXT_CTRLS)] = "VIDIOC_G_EXT_CTRLS", | |
237 | [_IOC_NR(VIDIOC_S_EXT_CTRLS)] = "VIDIOC_S_EXT_CTRLS", | |
238 | [_IOC_NR(VIDIOC_TRY_EXT_CTRLS)] = "VIDIOC_TRY_EXT_CTRLS", | |
239 | #if 1 | |
240 | [_IOC_NR(VIDIOC_ENUM_FRAMESIZES)] = "VIDIOC_ENUM_FRAMESIZES", | |
241 | [_IOC_NR(VIDIOC_ENUM_FRAMEINTERVALS)] = "VIDIOC_ENUM_FRAMEINTERVALS", | |
242 | [_IOC_NR(VIDIOC_G_ENC_INDEX)] = "VIDIOC_G_ENC_INDEX", | |
243 | [_IOC_NR(VIDIOC_ENCODER_CMD)] = "VIDIOC_ENCODER_CMD", | |
244 | [_IOC_NR(VIDIOC_TRY_ENCODER_CMD)] = "VIDIOC_TRY_ENCODER_CMD", | |
245 | ||
246 | [_IOC_NR(VIDIOC_DBG_S_REGISTER)] = "VIDIOC_DBG_S_REGISTER", | |
247 | [_IOC_NR(VIDIOC_DBG_G_REGISTER)] = "VIDIOC_DBG_G_REGISTER", | |
248 | ||
aecde8b5 | 249 | [_IOC_NR(VIDIOC_DBG_G_CHIP_IDENT)] = "VIDIOC_DBG_G_CHIP_IDENT", |
35ea11ff HV |
250 | [_IOC_NR(VIDIOC_S_HW_FREQ_SEEK)] = "VIDIOC_S_HW_FREQ_SEEK", |
251 | #endif | |
b6456c0c MK |
252 | [_IOC_NR(VIDIOC_ENUM_DV_PRESETS)] = "VIDIOC_ENUM_DV_PRESETS", |
253 | [_IOC_NR(VIDIOC_S_DV_PRESET)] = "VIDIOC_S_DV_PRESET", | |
254 | [_IOC_NR(VIDIOC_G_DV_PRESET)] = "VIDIOC_G_DV_PRESET", | |
255 | [_IOC_NR(VIDIOC_QUERY_DV_PRESET)] = "VIDIOC_QUERY_DV_PRESET", | |
256 | [_IOC_NR(VIDIOC_S_DV_TIMINGS)] = "VIDIOC_S_DV_TIMINGS", | |
257 | [_IOC_NR(VIDIOC_G_DV_TIMINGS)] = "VIDIOC_G_DV_TIMINGS", | |
fda10214 SA |
258 | [_IOC_NR(VIDIOC_DQEVENT)] = "VIDIOC_DQEVENT", |
259 | [_IOC_NR(VIDIOC_SUBSCRIBE_EVENT)] = "VIDIOC_SUBSCRIBE_EVENT", | |
260 | [_IOC_NR(VIDIOC_UNSUBSCRIBE_EVENT)] = "VIDIOC_UNSUBSCRIBE_EVENT", | |
35ea11ff HV |
261 | }; |
262 | #define V4L2_IOCTLS ARRAY_SIZE(v4l2_ioctls) | |
263 | ||
35ea11ff HV |
264 | /* Common ioctl debug function. This function can be used by |
265 | external ioctl messages as well as internal V4L ioctl */ | |
266 | void v4l_printk_ioctl(unsigned int cmd) | |
267 | { | |
268 | char *dir, *type; | |
269 | ||
270 | switch (_IOC_TYPE(cmd)) { | |
271 | case 'd': | |
78a3b4db HV |
272 | type = "v4l2_int"; |
273 | break; | |
35ea11ff HV |
274 | case 'V': |
275 | if (_IOC_NR(cmd) >= V4L2_IOCTLS) { | |
276 | type = "v4l2"; | |
277 | break; | |
278 | } | |
279 | printk("%s", v4l2_ioctls[_IOC_NR(cmd)]); | |
280 | return; | |
281 | default: | |
282 | type = "unknown"; | |
283 | } | |
284 | ||
285 | switch (_IOC_DIR(cmd)) { | |
286 | case _IOC_NONE: dir = "--"; break; | |
287 | case _IOC_READ: dir = "r-"; break; | |
288 | case _IOC_WRITE: dir = "-w"; break; | |
289 | case _IOC_READ | _IOC_WRITE: dir = "rw"; break; | |
290 | default: dir = "*ERR*"; break; | |
291 | } | |
292 | printk("%s ioctl '%c', dir=%s, #%d (0x%08x)", | |
293 | type, _IOC_TYPE(cmd), dir, _IOC_NR(cmd), cmd); | |
294 | } | |
295 | EXPORT_SYMBOL(v4l_printk_ioctl); | |
296 | ||
297 | /* | |
298 | * helper function -- handles userspace copying for ioctl arguments | |
35ea11ff HV |
299 | * Obsolete usercopy function - Should be removed soon |
300 | */ | |
069b7479 | 301 | long |
f473bf76 HV |
302 | video_usercopy(struct file *file, unsigned int cmd, unsigned long arg, |
303 | v4l2_kioctl func) | |
35ea11ff HV |
304 | { |
305 | char sbuf[128]; | |
306 | void *mbuf = NULL; | |
307 | void *parg = NULL; | |
069b7479 | 308 | long err = -EINVAL; |
35ea11ff HV |
309 | int is_ext_ctrl; |
310 | size_t ctrls_size = 0; | |
311 | void __user *user_ptr = NULL; | |
312 | ||
35ea11ff HV |
313 | is_ext_ctrl = (cmd == VIDIOC_S_EXT_CTRLS || cmd == VIDIOC_G_EXT_CTRLS || |
314 | cmd == VIDIOC_TRY_EXT_CTRLS); | |
315 | ||
316 | /* Copy arguments into temp kernel buffer */ | |
317 | switch (_IOC_DIR(cmd)) { | |
318 | case _IOC_NONE: | |
319 | parg = NULL; | |
320 | break; | |
321 | case _IOC_READ: | |
322 | case _IOC_WRITE: | |
323 | case (_IOC_WRITE | _IOC_READ): | |
324 | if (_IOC_SIZE(cmd) <= sizeof(sbuf)) { | |
325 | parg = sbuf; | |
326 | } else { | |
327 | /* too big to allocate from stack */ | |
328 | mbuf = kmalloc(_IOC_SIZE(cmd), GFP_KERNEL); | |
329 | if (NULL == mbuf) | |
330 | return -ENOMEM; | |
331 | parg = mbuf; | |
332 | } | |
333 | ||
334 | err = -EFAULT; | |
335 | if (_IOC_DIR(cmd) & _IOC_WRITE) | |
336 | if (copy_from_user(parg, (void __user *)arg, _IOC_SIZE(cmd))) | |
337 | goto out; | |
338 | break; | |
339 | } | |
340 | if (is_ext_ctrl) { | |
341 | struct v4l2_ext_controls *p = parg; | |
342 | ||
343 | /* In case of an error, tell the caller that it wasn't | |
344 | a specific control that caused it. */ | |
345 | p->error_idx = p->count; | |
346 | user_ptr = (void __user *)p->controls; | |
347 | if (p->count) { | |
348 | ctrls_size = sizeof(struct v4l2_ext_control) * p->count; | |
349 | /* Note: v4l2_ext_controls fits in sbuf[] so mbuf is still NULL. */ | |
350 | mbuf = kmalloc(ctrls_size, GFP_KERNEL); | |
351 | err = -ENOMEM; | |
352 | if (NULL == mbuf) | |
353 | goto out_ext_ctrl; | |
354 | err = -EFAULT; | |
355 | if (copy_from_user(mbuf, user_ptr, ctrls_size)) | |
356 | goto out_ext_ctrl; | |
357 | p->controls = mbuf; | |
358 | } | |
359 | } | |
360 | ||
361 | /* call driver */ | |
f473bf76 | 362 | err = func(file, cmd, parg); |
35ea11ff HV |
363 | if (err == -ENOIOCTLCMD) |
364 | err = -EINVAL; | |
365 | if (is_ext_ctrl) { | |
366 | struct v4l2_ext_controls *p = parg; | |
367 | ||
368 | p->controls = (void *)user_ptr; | |
369 | if (p->count && err == 0 && copy_to_user(user_ptr, mbuf, ctrls_size)) | |
370 | err = -EFAULT; | |
371 | goto out_ext_ctrl; | |
372 | } | |
373 | if (err < 0) | |
374 | goto out; | |
375 | ||
376 | out_ext_ctrl: | |
377 | /* Copy results into user buffer */ | |
378 | switch (_IOC_DIR(cmd)) { | |
379 | case _IOC_READ: | |
380 | case (_IOC_WRITE | _IOC_READ): | |
381 | if (copy_to_user((void __user *)arg, parg, _IOC_SIZE(cmd))) | |
382 | err = -EFAULT; | |
383 | break; | |
384 | } | |
385 | ||
386 | out: | |
387 | kfree(mbuf); | |
388 | return err; | |
389 | } | |
390 | EXPORT_SYMBOL(video_usercopy); | |
391 | ||
392 | static void dbgbuf(unsigned int cmd, struct video_device *vfd, | |
393 | struct v4l2_buffer *p) | |
394 | { | |
395 | struct v4l2_timecode *tc = &p->timecode; | |
d14e6d76 PO |
396 | struct v4l2_plane *plane; |
397 | int i; | |
35ea11ff HV |
398 | |
399 | dbgarg(cmd, "%02ld:%02d:%02d.%08ld index=%d, type=%s, " | |
d14e6d76 | 400 | "flags=0x%08d, field=%0d, sequence=%d, memory=%s\n", |
35ea11ff HV |
401 | p->timestamp.tv_sec / 3600, |
402 | (int)(p->timestamp.tv_sec / 60) % 60, | |
403 | (int)(p->timestamp.tv_sec % 60), | |
b045979d | 404 | (long)p->timestamp.tv_usec, |
35ea11ff HV |
405 | p->index, |
406 | prt_names(p->type, v4l2_type_names), | |
d14e6d76 PO |
407 | p->flags, p->field, p->sequence, |
408 | prt_names(p->memory, v4l2_memory_names)); | |
409 | ||
410 | if (V4L2_TYPE_IS_MULTIPLANAR(p->type) && p->m.planes) { | |
411 | for (i = 0; i < p->length; ++i) { | |
412 | plane = &p->m.planes[i]; | |
413 | dbgarg2("plane %d: bytesused=%d, data_offset=0x%08x " | |
414 | "offset/userptr=0x%08lx, length=%d\n", | |
415 | i, plane->bytesused, plane->data_offset, | |
416 | plane->m.userptr, plane->length); | |
417 | } | |
418 | } else { | |
419 | dbgarg2("bytesused=%d, offset/userptr=0x%08lx, length=%d\n", | |
420 | p->bytesused, p->m.userptr, p->length); | |
421 | } | |
422 | ||
35ea11ff HV |
423 | dbgarg2("timecode=%02d:%02d:%02d type=%d, " |
424 | "flags=0x%08d, frames=%d, userbits=0x%08x\n", | |
425 | tc->hours, tc->minutes, tc->seconds, | |
426 | tc->type, tc->flags, tc->frames, *(__u32 *)tc->userbits); | |
427 | } | |
428 | ||
429 | static inline void dbgrect(struct video_device *vfd, char *s, | |
430 | struct v4l2_rect *r) | |
431 | { | |
432 | dbgarg2("%sRect start at %dx%d, size=%dx%d\n", s, r->left, r->top, | |
433 | r->width, r->height); | |
434 | }; | |
435 | ||
436 | static inline void v4l_print_pix_fmt(struct video_device *vfd, | |
437 | struct v4l2_pix_format *fmt) | |
438 | { | |
439 | dbgarg2("width=%d, height=%d, format=%c%c%c%c, field=%s, " | |
440 | "bytesperline=%d sizeimage=%d, colorspace=%d\n", | |
441 | fmt->width, fmt->height, | |
442 | (fmt->pixelformat & 0xff), | |
443 | (fmt->pixelformat >> 8) & 0xff, | |
444 | (fmt->pixelformat >> 16) & 0xff, | |
445 | (fmt->pixelformat >> 24) & 0xff, | |
446 | prt_names(fmt->field, v4l2_field_names), | |
447 | fmt->bytesperline, fmt->sizeimage, fmt->colorspace); | |
448 | }; | |
449 | ||
d14e6d76 PO |
450 | static inline void v4l_print_pix_fmt_mplane(struct video_device *vfd, |
451 | struct v4l2_pix_format_mplane *fmt) | |
452 | { | |
453 | int i; | |
454 | ||
455 | dbgarg2("width=%d, height=%d, format=%c%c%c%c, field=%s, " | |
456 | "colorspace=%d, num_planes=%d\n", | |
457 | fmt->width, fmt->height, | |
458 | (fmt->pixelformat & 0xff), | |
459 | (fmt->pixelformat >> 8) & 0xff, | |
460 | (fmt->pixelformat >> 16) & 0xff, | |
461 | (fmt->pixelformat >> 24) & 0xff, | |
462 | prt_names(fmt->field, v4l2_field_names), | |
463 | fmt->colorspace, fmt->num_planes); | |
464 | ||
465 | for (i = 0; i < fmt->num_planes; ++i) | |
466 | dbgarg2("plane %d: bytesperline=%d sizeimage=%d\n", i, | |
467 | fmt->plane_fmt[i].bytesperline, | |
468 | fmt->plane_fmt[i].sizeimage); | |
469 | } | |
470 | ||
35ea11ff HV |
471 | static inline void v4l_print_ext_ctrls(unsigned int cmd, |
472 | struct video_device *vfd, struct v4l2_ext_controls *c, int show_vals) | |
473 | { | |
474 | __u32 i; | |
475 | ||
476 | if (!(vfd->debug & V4L2_DEBUG_IOCTL_ARG)) | |
477 | return; | |
478 | dbgarg(cmd, ""); | |
479 | printk(KERN_CONT "class=0x%x", c->ctrl_class); | |
480 | for (i = 0; i < c->count; i++) { | |
6b5a9492 | 481 | if (show_vals && !c->controls[i].size) |
35ea11ff HV |
482 | printk(KERN_CONT " id/val=0x%x/0x%x", |
483 | c->controls[i].id, c->controls[i].value); | |
484 | else | |
6b5a9492 HV |
485 | printk(KERN_CONT " id=0x%x,size=%u", |
486 | c->controls[i].id, c->controls[i].size); | |
35ea11ff HV |
487 | } |
488 | printk(KERN_CONT "\n"); | |
489 | }; | |
490 | ||
491 | static inline int check_ext_ctrls(struct v4l2_ext_controls *c, int allow_priv) | |
492 | { | |
493 | __u32 i; | |
494 | ||
495 | /* zero the reserved fields */ | |
496 | c->reserved[0] = c->reserved[1] = 0; | |
6b5a9492 | 497 | for (i = 0; i < c->count; i++) |
35ea11ff | 498 | c->controls[i].reserved2[0] = 0; |
6b5a9492 | 499 | |
35ea11ff HV |
500 | /* V4L2_CID_PRIVATE_BASE cannot be used as control class |
501 | when using extended controls. | |
502 | Only when passed in through VIDIOC_G_CTRL and VIDIOC_S_CTRL | |
503 | is it allowed for backwards compatibility. | |
504 | */ | |
505 | if (!allow_priv && c->ctrl_class == V4L2_CID_PRIVATE_BASE) | |
506 | return 0; | |
507 | /* Check that all controls are from the same control class. */ | |
508 | for (i = 0; i < c->count; i++) { | |
509 | if (V4L2_CTRL_ID2CLASS(c->controls[i].id) != c->ctrl_class) { | |
510 | c->error_idx = i; | |
511 | return 0; | |
512 | } | |
513 | } | |
514 | return 1; | |
515 | } | |
516 | ||
a399810c | 517 | static int check_fmt(const struct v4l2_ioctl_ops *ops, enum v4l2_buf_type type) |
35ea11ff | 518 | { |
a399810c HV |
519 | if (ops == NULL) |
520 | return -EINVAL; | |
521 | ||
35ea11ff HV |
522 | switch (type) { |
523 | case V4L2_BUF_TYPE_VIDEO_CAPTURE: | |
d14e6d76 PO |
524 | if (ops->vidioc_g_fmt_vid_cap || |
525 | ops->vidioc_g_fmt_vid_cap_mplane) | |
526 | return 0; | |
527 | break; | |
528 | case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE: | |
529 | if (ops->vidioc_g_fmt_vid_cap_mplane) | |
35ea11ff HV |
530 | return 0; |
531 | break; | |
532 | case V4L2_BUF_TYPE_VIDEO_OVERLAY: | |
1175d613 | 533 | if (ops->vidioc_g_fmt_vid_overlay) |
35ea11ff HV |
534 | return 0; |
535 | break; | |
536 | case V4L2_BUF_TYPE_VIDEO_OUTPUT: | |
d14e6d76 PO |
537 | if (ops->vidioc_g_fmt_vid_out || |
538 | ops->vidioc_g_fmt_vid_out_mplane) | |
539 | return 0; | |
540 | break; | |
541 | case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE: | |
542 | if (ops->vidioc_g_fmt_vid_out_mplane) | |
35ea11ff HV |
543 | return 0; |
544 | break; | |
545 | case V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY: | |
1175d613 | 546 | if (ops->vidioc_g_fmt_vid_out_overlay) |
35ea11ff HV |
547 | return 0; |
548 | break; | |
549 | case V4L2_BUF_TYPE_VBI_CAPTURE: | |
1175d613 | 550 | if (ops->vidioc_g_fmt_vbi_cap) |
35ea11ff HV |
551 | return 0; |
552 | break; | |
553 | case V4L2_BUF_TYPE_VBI_OUTPUT: | |
1175d613 | 554 | if (ops->vidioc_g_fmt_vbi_out) |
35ea11ff HV |
555 | return 0; |
556 | break; | |
557 | case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE: | |
1175d613 | 558 | if (ops->vidioc_g_fmt_sliced_vbi_cap) |
35ea11ff HV |
559 | return 0; |
560 | break; | |
561 | case V4L2_BUF_TYPE_SLICED_VBI_OUTPUT: | |
1175d613 | 562 | if (ops->vidioc_g_fmt_sliced_vbi_out) |
35ea11ff HV |
563 | return 0; |
564 | break; | |
565 | case V4L2_BUF_TYPE_PRIVATE: | |
1175d613 | 566 | if (ops->vidioc_g_fmt_type_private) |
35ea11ff HV |
567 | return 0; |
568 | break; | |
569 | } | |
570 | return -EINVAL; | |
571 | } | |
572 | ||
d14e6d76 PO |
573 | /** |
574 | * fmt_sp_to_mp() - Convert a single-plane format to its multi-planar 1-plane | |
575 | * equivalent | |
576 | */ | |
577 | static int fmt_sp_to_mp(const struct v4l2_format *f_sp, | |
578 | struct v4l2_format *f_mp) | |
579 | { | |
580 | struct v4l2_pix_format_mplane *pix_mp = &f_mp->fmt.pix_mp; | |
581 | const struct v4l2_pix_format *pix = &f_sp->fmt.pix; | |
582 | ||
583 | if (f_sp->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) | |
584 | f_mp->type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE; | |
585 | else if (f_sp->type == V4L2_BUF_TYPE_VIDEO_OUTPUT) | |
586 | f_mp->type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE; | |
587 | else | |
588 | return -EINVAL; | |
589 | ||
590 | pix_mp->width = pix->width; | |
591 | pix_mp->height = pix->height; | |
592 | pix_mp->pixelformat = pix->pixelformat; | |
593 | pix_mp->field = pix->field; | |
594 | pix_mp->colorspace = pix->colorspace; | |
595 | pix_mp->num_planes = 1; | |
596 | pix_mp->plane_fmt[0].sizeimage = pix->sizeimage; | |
597 | pix_mp->plane_fmt[0].bytesperline = pix->bytesperline; | |
598 | ||
599 | return 0; | |
600 | } | |
601 | ||
602 | /** | |
603 | * fmt_mp_to_sp() - Convert a multi-planar 1-plane format to its single-planar | |
604 | * equivalent | |
605 | */ | |
606 | static int fmt_mp_to_sp(const struct v4l2_format *f_mp, | |
607 | struct v4l2_format *f_sp) | |
608 | { | |
609 | const struct v4l2_pix_format_mplane *pix_mp = &f_mp->fmt.pix_mp; | |
610 | struct v4l2_pix_format *pix = &f_sp->fmt.pix; | |
611 | ||
612 | if (f_mp->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) | |
613 | f_sp->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; | |
614 | else if (f_mp->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) | |
615 | f_sp->type = V4L2_BUF_TYPE_VIDEO_OUTPUT; | |
616 | else | |
617 | return -EINVAL; | |
618 | ||
619 | pix->width = pix_mp->width; | |
620 | pix->height = pix_mp->height; | |
621 | pix->pixelformat = pix_mp->pixelformat; | |
622 | pix->field = pix_mp->field; | |
623 | pix->colorspace = pix_mp->colorspace; | |
624 | pix->sizeimage = pix_mp->plane_fmt[0].sizeimage; | |
625 | pix->bytesperline = pix_mp->plane_fmt[0].bytesperline; | |
626 | ||
627 | return 0; | |
628 | } | |
629 | ||
069b7479 | 630 | static long __video_do_ioctl(struct file *file, |
35ea11ff HV |
631 | unsigned int cmd, void *arg) |
632 | { | |
633 | struct video_device *vfd = video_devdata(file); | |
a399810c | 634 | const struct v4l2_ioctl_ops *ops = vfd->ioctl_ops; |
d5fbf32f | 635 | void *fh = file->private_data; |
d14e6d76 | 636 | struct v4l2_format f_copy; |
069b7479 | 637 | long ret = -EINVAL; |
35ea11ff | 638 | |
6a717883 HV |
639 | if (ops == NULL) { |
640 | printk(KERN_WARNING "videodev: \"%s\" has no ioctl_ops.\n", | |
641 | vfd->name); | |
642 | return -EINVAL; | |
643 | } | |
644 | ||
35ea11ff HV |
645 | if ((vfd->debug & V4L2_DEBUG_IOCTL) && |
646 | !(vfd->debug & V4L2_DEBUG_IOCTL_ARG)) { | |
647 | v4l_print_ioctl(vfd->name, cmd); | |
648 | printk(KERN_CONT "\n"); | |
649 | } | |
650 | ||
6a717883 | 651 | switch (cmd) { |
a399810c | 652 | |
35ea11ff HV |
653 | /* --- capabilities ------------------------------------------ */ |
654 | case VIDIOC_QUERYCAP: | |
655 | { | |
656 | struct v4l2_capability *cap = (struct v4l2_capability *)arg; | |
35ea11ff | 657 | |
a399810c | 658 | if (!ops->vidioc_querycap) |
35ea11ff HV |
659 | break; |
660 | ||
a399810c | 661 | ret = ops->vidioc_querycap(file, fh, cap); |
35ea11ff HV |
662 | if (!ret) |
663 | dbgarg(cmd, "driver=%s, card=%s, bus=%s, " | |
664 | "version=0x%08x, " | |
665 | "capabilities=0x%08x\n", | |
666 | cap->driver, cap->card, cap->bus_info, | |
667 | cap->version, | |
668 | cap->capabilities); | |
669 | break; | |
670 | } | |
671 | ||
672 | /* --- priority ------------------------------------------ */ | |
673 | case VIDIOC_G_PRIORITY: | |
674 | { | |
675 | enum v4l2_priority *p = arg; | |
676 | ||
a399810c | 677 | if (!ops->vidioc_g_priority) |
35ea11ff | 678 | break; |
a399810c | 679 | ret = ops->vidioc_g_priority(file, fh, p); |
35ea11ff HV |
680 | if (!ret) |
681 | dbgarg(cmd, "priority is %d\n", *p); | |
682 | break; | |
683 | } | |
684 | case VIDIOC_S_PRIORITY: | |
685 | { | |
686 | enum v4l2_priority *p = arg; | |
687 | ||
a399810c | 688 | if (!ops->vidioc_s_priority) |
35ea11ff HV |
689 | break; |
690 | dbgarg(cmd, "setting priority to %d\n", *p); | |
a399810c | 691 | ret = ops->vidioc_s_priority(file, fh, *p); |
35ea11ff HV |
692 | break; |
693 | } | |
694 | ||
695 | /* --- capture ioctls ---------------------------------------- */ | |
696 | case VIDIOC_ENUM_FMT: | |
697 | { | |
698 | struct v4l2_fmtdesc *f = arg; | |
35ea11ff | 699 | |
19c96e4b | 700 | switch (f->type) { |
35ea11ff | 701 | case V4L2_BUF_TYPE_VIDEO_CAPTURE: |
a399810c HV |
702 | if (ops->vidioc_enum_fmt_vid_cap) |
703 | ret = ops->vidioc_enum_fmt_vid_cap(file, fh, f); | |
35ea11ff | 704 | break; |
d14e6d76 PO |
705 | case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE: |
706 | if (ops->vidioc_enum_fmt_vid_cap_mplane) | |
707 | ret = ops->vidioc_enum_fmt_vid_cap_mplane(file, | |
708 | fh, f); | |
709 | break; | |
35ea11ff | 710 | case V4L2_BUF_TYPE_VIDEO_OVERLAY: |
a399810c HV |
711 | if (ops->vidioc_enum_fmt_vid_overlay) |
712 | ret = ops->vidioc_enum_fmt_vid_overlay(file, | |
35ea11ff HV |
713 | fh, f); |
714 | break; | |
35ea11ff | 715 | case V4L2_BUF_TYPE_VIDEO_OUTPUT: |
a399810c HV |
716 | if (ops->vidioc_enum_fmt_vid_out) |
717 | ret = ops->vidioc_enum_fmt_vid_out(file, fh, f); | |
35ea11ff | 718 | break; |
d14e6d76 PO |
719 | case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE: |
720 | if (ops->vidioc_enum_fmt_vid_out_mplane) | |
721 | ret = ops->vidioc_enum_fmt_vid_out_mplane(file, | |
722 | fh, f); | |
723 | break; | |
35ea11ff | 724 | case V4L2_BUF_TYPE_PRIVATE: |
a399810c HV |
725 | if (ops->vidioc_enum_fmt_type_private) |
726 | ret = ops->vidioc_enum_fmt_type_private(file, | |
35ea11ff HV |
727 | fh, f); |
728 | break; | |
729 | default: | |
730 | break; | |
731 | } | |
732 | if (!ret) | |
733 | dbgarg(cmd, "index=%d, type=%d, flags=%d, " | |
734 | "pixelformat=%c%c%c%c, description='%s'\n", | |
735 | f->index, f->type, f->flags, | |
736 | (f->pixelformat & 0xff), | |
737 | (f->pixelformat >> 8) & 0xff, | |
738 | (f->pixelformat >> 16) & 0xff, | |
739 | (f->pixelformat >> 24) & 0xff, | |
740 | f->description); | |
741 | break; | |
742 | } | |
743 | case VIDIOC_G_FMT: | |
744 | { | |
745 | struct v4l2_format *f = (struct v4l2_format *)arg; | |
746 | ||
35ea11ff HV |
747 | /* FIXME: Should be one dump per type */ |
748 | dbgarg(cmd, "type=%s\n", prt_names(f->type, v4l2_type_names)); | |
749 | ||
750 | switch (f->type) { | |
751 | case V4L2_BUF_TYPE_VIDEO_CAPTURE: | |
d14e6d76 | 752 | if (ops->vidioc_g_fmt_vid_cap) { |
a399810c | 753 | ret = ops->vidioc_g_fmt_vid_cap(file, fh, f); |
d14e6d76 PO |
754 | } else if (ops->vidioc_g_fmt_vid_cap_mplane) { |
755 | if (fmt_sp_to_mp(f, &f_copy)) | |
756 | break; | |
757 | ret = ops->vidioc_g_fmt_vid_cap_mplane(file, fh, | |
758 | &f_copy); | |
759 | if (ret) | |
760 | break; | |
761 | ||
762 | /* Driver is currently in multi-planar format, | |
763 | * we can't return it in single-planar API*/ | |
764 | if (f_copy.fmt.pix_mp.num_planes > 1) { | |
765 | ret = -EBUSY; | |
766 | break; | |
767 | } | |
768 | ||
769 | ret = fmt_mp_to_sp(&f_copy, f); | |
770 | } | |
35ea11ff HV |
771 | if (!ret) |
772 | v4l_print_pix_fmt(vfd, &f->fmt.pix); | |
773 | break; | |
d14e6d76 PO |
774 | case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE: |
775 | if (ops->vidioc_g_fmt_vid_cap_mplane) { | |
776 | ret = ops->vidioc_g_fmt_vid_cap_mplane(file, | |
777 | fh, f); | |
778 | } else if (ops->vidioc_g_fmt_vid_cap) { | |
779 | if (fmt_mp_to_sp(f, &f_copy)) | |
780 | break; | |
781 | ret = ops->vidioc_g_fmt_vid_cap(file, | |
782 | fh, &f_copy); | |
783 | if (ret) | |
784 | break; | |
785 | ||
786 | ret = fmt_sp_to_mp(&f_copy, f); | |
787 | } | |
788 | if (!ret) | |
789 | v4l_print_pix_fmt_mplane(vfd, &f->fmt.pix_mp); | |
790 | break; | |
35ea11ff | 791 | case V4L2_BUF_TYPE_VIDEO_OVERLAY: |
a399810c HV |
792 | if (ops->vidioc_g_fmt_vid_overlay) |
793 | ret = ops->vidioc_g_fmt_vid_overlay(file, | |
35ea11ff HV |
794 | fh, f); |
795 | break; | |
796 | case V4L2_BUF_TYPE_VIDEO_OUTPUT: | |
d14e6d76 | 797 | if (ops->vidioc_g_fmt_vid_out) { |
a399810c | 798 | ret = ops->vidioc_g_fmt_vid_out(file, fh, f); |
d14e6d76 PO |
799 | } else if (ops->vidioc_g_fmt_vid_out_mplane) { |
800 | if (fmt_sp_to_mp(f, &f_copy)) | |
801 | break; | |
802 | ret = ops->vidioc_g_fmt_vid_out_mplane(file, fh, | |
803 | &f_copy); | |
804 | if (ret) | |
805 | break; | |
806 | ||
807 | /* Driver is currently in multi-planar format, | |
808 | * we can't return it in single-planar API*/ | |
809 | if (f_copy.fmt.pix_mp.num_planes > 1) { | |
810 | ret = -EBUSY; | |
811 | break; | |
812 | } | |
813 | ||
814 | ret = fmt_mp_to_sp(&f_copy, f); | |
815 | } | |
35ea11ff HV |
816 | if (!ret) |
817 | v4l_print_pix_fmt(vfd, &f->fmt.pix); | |
818 | break; | |
d14e6d76 PO |
819 | case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE: |
820 | if (ops->vidioc_g_fmt_vid_out_mplane) { | |
821 | ret = ops->vidioc_g_fmt_vid_out_mplane(file, | |
822 | fh, f); | |
823 | } else if (ops->vidioc_g_fmt_vid_out) { | |
824 | if (fmt_mp_to_sp(f, &f_copy)) | |
825 | break; | |
826 | ret = ops->vidioc_g_fmt_vid_out(file, | |
827 | fh, &f_copy); | |
828 | if (ret) | |
829 | break; | |
830 | ||
831 | ret = fmt_sp_to_mp(&f_copy, f); | |
832 | } | |
833 | if (!ret) | |
834 | v4l_print_pix_fmt_mplane(vfd, &f->fmt.pix_mp); | |
835 | break; | |
35ea11ff | 836 | case V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY: |
a399810c HV |
837 | if (ops->vidioc_g_fmt_vid_out_overlay) |
838 | ret = ops->vidioc_g_fmt_vid_out_overlay(file, | |
35ea11ff HV |
839 | fh, f); |
840 | break; | |
841 | case V4L2_BUF_TYPE_VBI_CAPTURE: | |
a399810c HV |
842 | if (ops->vidioc_g_fmt_vbi_cap) |
843 | ret = ops->vidioc_g_fmt_vbi_cap(file, fh, f); | |
35ea11ff HV |
844 | break; |
845 | case V4L2_BUF_TYPE_VBI_OUTPUT: | |
a399810c HV |
846 | if (ops->vidioc_g_fmt_vbi_out) |
847 | ret = ops->vidioc_g_fmt_vbi_out(file, fh, f); | |
35ea11ff HV |
848 | break; |
849 | case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE: | |
a399810c HV |
850 | if (ops->vidioc_g_fmt_sliced_vbi_cap) |
851 | ret = ops->vidioc_g_fmt_sliced_vbi_cap(file, | |
35ea11ff HV |
852 | fh, f); |
853 | break; | |
854 | case V4L2_BUF_TYPE_SLICED_VBI_OUTPUT: | |
a399810c HV |
855 | if (ops->vidioc_g_fmt_sliced_vbi_out) |
856 | ret = ops->vidioc_g_fmt_sliced_vbi_out(file, | |
35ea11ff HV |
857 | fh, f); |
858 | break; | |
859 | case V4L2_BUF_TYPE_PRIVATE: | |
a399810c HV |
860 | if (ops->vidioc_g_fmt_type_private) |
861 | ret = ops->vidioc_g_fmt_type_private(file, | |
35ea11ff HV |
862 | fh, f); |
863 | break; | |
864 | } | |
865 | ||
866 | break; | |
867 | } | |
868 | case VIDIOC_S_FMT: | |
869 | { | |
870 | struct v4l2_format *f = (struct v4l2_format *)arg; | |
871 | ||
872 | /* FIXME: Should be one dump per type */ | |
873 | dbgarg(cmd, "type=%s\n", prt_names(f->type, v4l2_type_names)); | |
874 | ||
875 | switch (f->type) { | |
876 | case V4L2_BUF_TYPE_VIDEO_CAPTURE: | |
7ecc0cf9 | 877 | CLEAR_AFTER_FIELD(f, fmt.pix); |
35ea11ff | 878 | v4l_print_pix_fmt(vfd, &f->fmt.pix); |
d14e6d76 | 879 | if (ops->vidioc_s_fmt_vid_cap) { |
a399810c | 880 | ret = ops->vidioc_s_fmt_vid_cap(file, fh, f); |
d14e6d76 PO |
881 | } else if (ops->vidioc_s_fmt_vid_cap_mplane) { |
882 | if (fmt_sp_to_mp(f, &f_copy)) | |
883 | break; | |
884 | ret = ops->vidioc_s_fmt_vid_cap_mplane(file, fh, | |
885 | &f_copy); | |
886 | if (ret) | |
887 | break; | |
888 | ||
889 | if (f_copy.fmt.pix_mp.num_planes > 1) { | |
890 | /* Drivers shouldn't adjust from 1-plane | |
891 | * to more than 1-plane formats */ | |
892 | ret = -EBUSY; | |
893 | WARN_ON(1); | |
894 | break; | |
895 | } | |
896 | ||
897 | ret = fmt_mp_to_sp(&f_copy, f); | |
898 | } | |
899 | break; | |
900 | case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE: | |
901 | CLEAR_AFTER_FIELD(f, fmt.pix_mp); | |
902 | v4l_print_pix_fmt_mplane(vfd, &f->fmt.pix_mp); | |
903 | if (ops->vidioc_s_fmt_vid_cap_mplane) { | |
904 | ret = ops->vidioc_s_fmt_vid_cap_mplane(file, | |
905 | fh, f); | |
906 | } else if (ops->vidioc_s_fmt_vid_cap && | |
907 | f->fmt.pix_mp.num_planes == 1) { | |
908 | if (fmt_mp_to_sp(f, &f_copy)) | |
909 | break; | |
910 | ret = ops->vidioc_s_fmt_vid_cap(file, | |
911 | fh, &f_copy); | |
912 | if (ret) | |
913 | break; | |
914 | ||
915 | ret = fmt_sp_to_mp(&f_copy, f); | |
916 | } | |
35ea11ff HV |
917 | break; |
918 | case V4L2_BUF_TYPE_VIDEO_OVERLAY: | |
7ecc0cf9 | 919 | CLEAR_AFTER_FIELD(f, fmt.win); |
a399810c HV |
920 | if (ops->vidioc_s_fmt_vid_overlay) |
921 | ret = ops->vidioc_s_fmt_vid_overlay(file, | |
35ea11ff HV |
922 | fh, f); |
923 | break; | |
924 | case V4L2_BUF_TYPE_VIDEO_OUTPUT: | |
7ecc0cf9 | 925 | CLEAR_AFTER_FIELD(f, fmt.pix); |
35ea11ff | 926 | v4l_print_pix_fmt(vfd, &f->fmt.pix); |
d14e6d76 | 927 | if (ops->vidioc_s_fmt_vid_out) { |
a399810c | 928 | ret = ops->vidioc_s_fmt_vid_out(file, fh, f); |
d14e6d76 PO |
929 | } else if (ops->vidioc_s_fmt_vid_out_mplane) { |
930 | if (fmt_sp_to_mp(f, &f_copy)) | |
931 | break; | |
932 | ret = ops->vidioc_s_fmt_vid_out_mplane(file, fh, | |
933 | &f_copy); | |
934 | if (ret) | |
935 | break; | |
936 | ||
937 | if (f_copy.fmt.pix_mp.num_planes > 1) { | |
938 | /* Drivers shouldn't adjust from 1-plane | |
939 | * to more than 1-plane formats */ | |
940 | ret = -EBUSY; | |
941 | WARN_ON(1); | |
942 | break; | |
943 | } | |
944 | ||
945 | ret = fmt_mp_to_sp(&f_copy, f); | |
946 | } | |
947 | break; | |
948 | case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE: | |
949 | CLEAR_AFTER_FIELD(f, fmt.pix_mp); | |
950 | v4l_print_pix_fmt_mplane(vfd, &f->fmt.pix_mp); | |
951 | if (ops->vidioc_s_fmt_vid_out_mplane) { | |
952 | ret = ops->vidioc_s_fmt_vid_out_mplane(file, | |
953 | fh, f); | |
954 | } else if (ops->vidioc_s_fmt_vid_out && | |
955 | f->fmt.pix_mp.num_planes == 1) { | |
956 | if (fmt_mp_to_sp(f, &f_copy)) | |
957 | break; | |
958 | ret = ops->vidioc_s_fmt_vid_out(file, | |
959 | fh, &f_copy); | |
960 | if (ret) | |
961 | break; | |
962 | ||
963 | ret = fmt_mp_to_sp(&f_copy, f); | |
964 | } | |
35ea11ff HV |
965 | break; |
966 | case V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY: | |
7ecc0cf9 | 967 | CLEAR_AFTER_FIELD(f, fmt.win); |
a399810c HV |
968 | if (ops->vidioc_s_fmt_vid_out_overlay) |
969 | ret = ops->vidioc_s_fmt_vid_out_overlay(file, | |
35ea11ff HV |
970 | fh, f); |
971 | break; | |
972 | case V4L2_BUF_TYPE_VBI_CAPTURE: | |
7ecc0cf9 | 973 | CLEAR_AFTER_FIELD(f, fmt.vbi); |
a399810c HV |
974 | if (ops->vidioc_s_fmt_vbi_cap) |
975 | ret = ops->vidioc_s_fmt_vbi_cap(file, fh, f); | |
35ea11ff HV |
976 | break; |
977 | case V4L2_BUF_TYPE_VBI_OUTPUT: | |
7ecc0cf9 | 978 | CLEAR_AFTER_FIELD(f, fmt.vbi); |
a399810c HV |
979 | if (ops->vidioc_s_fmt_vbi_out) |
980 | ret = ops->vidioc_s_fmt_vbi_out(file, fh, f); | |
35ea11ff HV |
981 | break; |
982 | case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE: | |
7ecc0cf9 | 983 | CLEAR_AFTER_FIELD(f, fmt.sliced); |
a399810c HV |
984 | if (ops->vidioc_s_fmt_sliced_vbi_cap) |
985 | ret = ops->vidioc_s_fmt_sliced_vbi_cap(file, | |
35ea11ff HV |
986 | fh, f); |
987 | break; | |
988 | case V4L2_BUF_TYPE_SLICED_VBI_OUTPUT: | |
7ecc0cf9 | 989 | CLEAR_AFTER_FIELD(f, fmt.sliced); |
a399810c HV |
990 | if (ops->vidioc_s_fmt_sliced_vbi_out) |
991 | ret = ops->vidioc_s_fmt_sliced_vbi_out(file, | |
35ea11ff HV |
992 | fh, f); |
993 | break; | |
994 | case V4L2_BUF_TYPE_PRIVATE: | |
7ecc0cf9 | 995 | /* CLEAR_AFTER_FIELD(f, fmt.raw_data); <- does nothing */ |
a399810c HV |
996 | if (ops->vidioc_s_fmt_type_private) |
997 | ret = ops->vidioc_s_fmt_type_private(file, | |
35ea11ff HV |
998 | fh, f); |
999 | break; | |
1000 | } | |
1001 | break; | |
1002 | } | |
1003 | case VIDIOC_TRY_FMT: | |
1004 | { | |
1005 | struct v4l2_format *f = (struct v4l2_format *)arg; | |
1006 | ||
1007 | /* FIXME: Should be one dump per type */ | |
1008 | dbgarg(cmd, "type=%s\n", prt_names(f->type, | |
1009 | v4l2_type_names)); | |
1010 | switch (f->type) { | |
1011 | case V4L2_BUF_TYPE_VIDEO_CAPTURE: | |
7ecc0cf9 | 1012 | CLEAR_AFTER_FIELD(f, fmt.pix); |
d14e6d76 | 1013 | if (ops->vidioc_try_fmt_vid_cap) { |
a399810c | 1014 | ret = ops->vidioc_try_fmt_vid_cap(file, fh, f); |
d14e6d76 PO |
1015 | } else if (ops->vidioc_try_fmt_vid_cap_mplane) { |
1016 | if (fmt_sp_to_mp(f, &f_copy)) | |
1017 | break; | |
1018 | ret = ops->vidioc_try_fmt_vid_cap_mplane(file, | |
1019 | fh, &f_copy); | |
1020 | if (ret) | |
1021 | break; | |
1022 | ||
1023 | if (f_copy.fmt.pix_mp.num_planes > 1) { | |
1024 | /* Drivers shouldn't adjust from 1-plane | |
1025 | * to more than 1-plane formats */ | |
1026 | ret = -EBUSY; | |
1027 | WARN_ON(1); | |
1028 | break; | |
1029 | } | |
1030 | ret = fmt_mp_to_sp(&f_copy, f); | |
1031 | } | |
35ea11ff HV |
1032 | if (!ret) |
1033 | v4l_print_pix_fmt(vfd, &f->fmt.pix); | |
1034 | break; | |
d14e6d76 PO |
1035 | case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE: |
1036 | CLEAR_AFTER_FIELD(f, fmt.pix_mp); | |
1037 | if (ops->vidioc_try_fmt_vid_cap_mplane) { | |
1038 | ret = ops->vidioc_try_fmt_vid_cap_mplane(file, | |
1039 | fh, f); | |
1040 | } else if (ops->vidioc_try_fmt_vid_cap && | |
1041 | f->fmt.pix_mp.num_planes == 1) { | |
1042 | if (fmt_mp_to_sp(f, &f_copy)) | |
1043 | break; | |
1044 | ret = ops->vidioc_try_fmt_vid_cap(file, | |
1045 | fh, &f_copy); | |
1046 | if (ret) | |
1047 | break; | |
1048 | ||
1049 | ret = fmt_sp_to_mp(&f_copy, f); | |
1050 | } | |
1051 | if (!ret) | |
1052 | v4l_print_pix_fmt_mplane(vfd, &f->fmt.pix_mp); | |
1053 | break; | |
35ea11ff | 1054 | case V4L2_BUF_TYPE_VIDEO_OVERLAY: |
7ecc0cf9 | 1055 | CLEAR_AFTER_FIELD(f, fmt.win); |
a399810c HV |
1056 | if (ops->vidioc_try_fmt_vid_overlay) |
1057 | ret = ops->vidioc_try_fmt_vid_overlay(file, | |
35ea11ff HV |
1058 | fh, f); |
1059 | break; | |
1060 | case V4L2_BUF_TYPE_VIDEO_OUTPUT: | |
7ecc0cf9 | 1061 | CLEAR_AFTER_FIELD(f, fmt.pix); |
d14e6d76 | 1062 | if (ops->vidioc_try_fmt_vid_out) { |
a399810c | 1063 | ret = ops->vidioc_try_fmt_vid_out(file, fh, f); |
d14e6d76 PO |
1064 | } else if (ops->vidioc_try_fmt_vid_out_mplane) { |
1065 | if (fmt_sp_to_mp(f, &f_copy)) | |
1066 | break; | |
1067 | ret = ops->vidioc_try_fmt_vid_out_mplane(file, | |
1068 | fh, &f_copy); | |
1069 | if (ret) | |
1070 | break; | |
1071 | ||
1072 | if (f_copy.fmt.pix_mp.num_planes > 1) { | |
1073 | /* Drivers shouldn't adjust from 1-plane | |
1074 | * to more than 1-plane formats */ | |
1075 | ret = -EBUSY; | |
1076 | WARN_ON(1); | |
1077 | break; | |
1078 | } | |
1079 | ret = fmt_mp_to_sp(&f_copy, f); | |
1080 | } | |
35ea11ff HV |
1081 | if (!ret) |
1082 | v4l_print_pix_fmt(vfd, &f->fmt.pix); | |
1083 | break; | |
d14e6d76 PO |
1084 | case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE: |
1085 | CLEAR_AFTER_FIELD(f, fmt.pix_mp); | |
1086 | if (ops->vidioc_try_fmt_vid_out_mplane) { | |
1087 | ret = ops->vidioc_try_fmt_vid_out_mplane(file, | |
1088 | fh, f); | |
1089 | } else if (ops->vidioc_try_fmt_vid_out && | |
1090 | f->fmt.pix_mp.num_planes == 1) { | |
1091 | if (fmt_mp_to_sp(f, &f_copy)) | |
1092 | break; | |
1093 | ret = ops->vidioc_try_fmt_vid_out(file, | |
1094 | fh, &f_copy); | |
1095 | if (ret) | |
1096 | break; | |
1097 | ||
1098 | ret = fmt_sp_to_mp(&f_copy, f); | |
1099 | } | |
1100 | if (!ret) | |
1101 | v4l_print_pix_fmt_mplane(vfd, &f->fmt.pix_mp); | |
1102 | break; | |
35ea11ff | 1103 | case V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY: |
7ecc0cf9 | 1104 | CLEAR_AFTER_FIELD(f, fmt.win); |
a399810c HV |
1105 | if (ops->vidioc_try_fmt_vid_out_overlay) |
1106 | ret = ops->vidioc_try_fmt_vid_out_overlay(file, | |
35ea11ff HV |
1107 | fh, f); |
1108 | break; | |
1109 | case V4L2_BUF_TYPE_VBI_CAPTURE: | |
7ecc0cf9 | 1110 | CLEAR_AFTER_FIELD(f, fmt.vbi); |
a399810c HV |
1111 | if (ops->vidioc_try_fmt_vbi_cap) |
1112 | ret = ops->vidioc_try_fmt_vbi_cap(file, fh, f); | |
35ea11ff HV |
1113 | break; |
1114 | case V4L2_BUF_TYPE_VBI_OUTPUT: | |
7ecc0cf9 | 1115 | CLEAR_AFTER_FIELD(f, fmt.vbi); |
a399810c HV |
1116 | if (ops->vidioc_try_fmt_vbi_out) |
1117 | ret = ops->vidioc_try_fmt_vbi_out(file, fh, f); | |
35ea11ff HV |
1118 | break; |
1119 | case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE: | |
7ecc0cf9 | 1120 | CLEAR_AFTER_FIELD(f, fmt.sliced); |
a399810c HV |
1121 | if (ops->vidioc_try_fmt_sliced_vbi_cap) |
1122 | ret = ops->vidioc_try_fmt_sliced_vbi_cap(file, | |
35ea11ff HV |
1123 | fh, f); |
1124 | break; | |
1125 | case V4L2_BUF_TYPE_SLICED_VBI_OUTPUT: | |
7ecc0cf9 | 1126 | CLEAR_AFTER_FIELD(f, fmt.sliced); |
a399810c HV |
1127 | if (ops->vidioc_try_fmt_sliced_vbi_out) |
1128 | ret = ops->vidioc_try_fmt_sliced_vbi_out(file, | |
35ea11ff HV |
1129 | fh, f); |
1130 | break; | |
1131 | case V4L2_BUF_TYPE_PRIVATE: | |
7ecc0cf9 | 1132 | /* CLEAR_AFTER_FIELD(f, fmt.raw_data); <- does nothing */ |
a399810c HV |
1133 | if (ops->vidioc_try_fmt_type_private) |
1134 | ret = ops->vidioc_try_fmt_type_private(file, | |
35ea11ff HV |
1135 | fh, f); |
1136 | break; | |
1137 | } | |
1138 | ||
1139 | break; | |
1140 | } | |
1141 | /* FIXME: Those buf reqs could be handled here, | |
1142 | with some changes on videobuf to allow its header to be included at | |
1143 | videodev2.h or being merged at videodev2. | |
1144 | */ | |
1145 | case VIDIOC_REQBUFS: | |
1146 | { | |
1147 | struct v4l2_requestbuffers *p = arg; | |
1148 | ||
a399810c | 1149 | if (!ops->vidioc_reqbufs) |
35ea11ff | 1150 | break; |
a399810c | 1151 | ret = check_fmt(ops, p->type); |
35ea11ff HV |
1152 | if (ret) |
1153 | break; | |
1154 | ||
7ecc0cf9 TP |
1155 | if (p->type < V4L2_BUF_TYPE_PRIVATE) |
1156 | CLEAR_AFTER_FIELD(p, memory); | |
1157 | ||
a399810c | 1158 | ret = ops->vidioc_reqbufs(file, fh, p); |
35ea11ff HV |
1159 | dbgarg(cmd, "count=%d, type=%s, memory=%s\n", |
1160 | p->count, | |
1161 | prt_names(p->type, v4l2_type_names), | |
1162 | prt_names(p->memory, v4l2_memory_names)); | |
1163 | break; | |
1164 | } | |
1165 | case VIDIOC_QUERYBUF: | |
1166 | { | |
1167 | struct v4l2_buffer *p = arg; | |
1168 | ||
a399810c | 1169 | if (!ops->vidioc_querybuf) |
35ea11ff | 1170 | break; |
a399810c | 1171 | ret = check_fmt(ops, p->type); |
35ea11ff HV |
1172 | if (ret) |
1173 | break; | |
1174 | ||
a399810c | 1175 | ret = ops->vidioc_querybuf(file, fh, p); |
35ea11ff HV |
1176 | if (!ret) |
1177 | dbgbuf(cmd, vfd, p); | |
1178 | break; | |
1179 | } | |
1180 | case VIDIOC_QBUF: | |
1181 | { | |
1182 | struct v4l2_buffer *p = arg; | |
1183 | ||
a399810c | 1184 | if (!ops->vidioc_qbuf) |
35ea11ff | 1185 | break; |
a399810c | 1186 | ret = check_fmt(ops, p->type); |
35ea11ff HV |
1187 | if (ret) |
1188 | break; | |
1189 | ||
a399810c | 1190 | ret = ops->vidioc_qbuf(file, fh, p); |
35ea11ff HV |
1191 | if (!ret) |
1192 | dbgbuf(cmd, vfd, p); | |
1193 | break; | |
1194 | } | |
1195 | case VIDIOC_DQBUF: | |
1196 | { | |
1197 | struct v4l2_buffer *p = arg; | |
1198 | ||
a399810c | 1199 | if (!ops->vidioc_dqbuf) |
35ea11ff | 1200 | break; |
a399810c | 1201 | ret = check_fmt(ops, p->type); |
35ea11ff HV |
1202 | if (ret) |
1203 | break; | |
1204 | ||
a399810c | 1205 | ret = ops->vidioc_dqbuf(file, fh, p); |
35ea11ff HV |
1206 | if (!ret) |
1207 | dbgbuf(cmd, vfd, p); | |
1208 | break; | |
1209 | } | |
1210 | case VIDIOC_OVERLAY: | |
1211 | { | |
1212 | int *i = arg; | |
1213 | ||
a399810c | 1214 | if (!ops->vidioc_overlay) |
35ea11ff HV |
1215 | break; |
1216 | dbgarg(cmd, "value=%d\n", *i); | |
a399810c | 1217 | ret = ops->vidioc_overlay(file, fh, *i); |
35ea11ff HV |
1218 | break; |
1219 | } | |
1220 | case VIDIOC_G_FBUF: | |
1221 | { | |
1222 | struct v4l2_framebuffer *p = arg; | |
1223 | ||
a399810c | 1224 | if (!ops->vidioc_g_fbuf) |
35ea11ff | 1225 | break; |
a399810c | 1226 | ret = ops->vidioc_g_fbuf(file, fh, arg); |
35ea11ff HV |
1227 | if (!ret) { |
1228 | dbgarg(cmd, "capability=0x%x, flags=%d, base=0x%08lx\n", | |
1229 | p->capability, p->flags, | |
1230 | (unsigned long)p->base); | |
1231 | v4l_print_pix_fmt(vfd, &p->fmt); | |
1232 | } | |
1233 | break; | |
1234 | } | |
1235 | case VIDIOC_S_FBUF: | |
1236 | { | |
1237 | struct v4l2_framebuffer *p = arg; | |
1238 | ||
a399810c | 1239 | if (!ops->vidioc_s_fbuf) |
35ea11ff HV |
1240 | break; |
1241 | dbgarg(cmd, "capability=0x%x, flags=%d, base=0x%08lx\n", | |
1242 | p->capability, p->flags, (unsigned long)p->base); | |
1243 | v4l_print_pix_fmt(vfd, &p->fmt); | |
a399810c | 1244 | ret = ops->vidioc_s_fbuf(file, fh, arg); |
35ea11ff HV |
1245 | break; |
1246 | } | |
1247 | case VIDIOC_STREAMON: | |
1248 | { | |
1249 | enum v4l2_buf_type i = *(int *)arg; | |
1250 | ||
a399810c | 1251 | if (!ops->vidioc_streamon) |
35ea11ff HV |
1252 | break; |
1253 | dbgarg(cmd, "type=%s\n", prt_names(i, v4l2_type_names)); | |
a399810c | 1254 | ret = ops->vidioc_streamon(file, fh, i); |
35ea11ff HV |
1255 | break; |
1256 | } | |
1257 | case VIDIOC_STREAMOFF: | |
1258 | { | |
1259 | enum v4l2_buf_type i = *(int *)arg; | |
1260 | ||
a399810c | 1261 | if (!ops->vidioc_streamoff) |
35ea11ff HV |
1262 | break; |
1263 | dbgarg(cmd, "type=%s\n", prt_names(i, v4l2_type_names)); | |
a399810c | 1264 | ret = ops->vidioc_streamoff(file, fh, i); |
35ea11ff HV |
1265 | break; |
1266 | } | |
1267 | /* ---------- tv norms ---------- */ | |
1268 | case VIDIOC_ENUMSTD: | |
1269 | { | |
1270 | struct v4l2_standard *p = arg; | |
1271 | v4l2_std_id id = vfd->tvnorms, curr_id = 0; | |
1272 | unsigned int index = p->index, i, j = 0; | |
1273 | const char *descr = ""; | |
1274 | ||
1275 | /* Return norm array in a canonical way */ | |
1276 | for (i = 0; i <= index && id; i++) { | |
1277 | /* last std value in the standards array is 0, so this | |
1278 | while always ends there since (id & 0) == 0. */ | |
1279 | while ((id & standards[j].std) != standards[j].std) | |
1280 | j++; | |
1281 | curr_id = standards[j].std; | |
1282 | descr = standards[j].descr; | |
1283 | j++; | |
1284 | if (curr_id == 0) | |
1285 | break; | |
1286 | if (curr_id != V4L2_STD_PAL && | |
1287 | curr_id != V4L2_STD_SECAM && | |
1288 | curr_id != V4L2_STD_NTSC) | |
1289 | id &= ~curr_id; | |
1290 | } | |
1291 | if (i <= index) | |
3f5e1824 | 1292 | break; |
35ea11ff HV |
1293 | |
1294 | v4l2_video_std_construct(p, curr_id, descr); | |
35ea11ff HV |
1295 | |
1296 | dbgarg(cmd, "index=%d, id=0x%Lx, name=%s, fps=%d/%d, " | |
1297 | "framelines=%d\n", p->index, | |
1298 | (unsigned long long)p->id, p->name, | |
1299 | p->frameperiod.numerator, | |
1300 | p->frameperiod.denominator, | |
1301 | p->framelines); | |
1302 | ||
1303 | ret = 0; | |
1304 | break; | |
1305 | } | |
1306 | case VIDIOC_G_STD: | |
1307 | { | |
1308 | v4l2_std_id *id = arg; | |
1309 | ||
1310 | ret = 0; | |
1311 | /* Calls the specific handler */ | |
a399810c HV |
1312 | if (ops->vidioc_g_std) |
1313 | ret = ops->vidioc_g_std(file, fh, id); | |
9bedc7f7 | 1314 | else if (vfd->current_norm) |
35ea11ff | 1315 | *id = vfd->current_norm; |
9bedc7f7 HV |
1316 | else |
1317 | ret = -EINVAL; | |
35ea11ff HV |
1318 | |
1319 | if (!ret) | |
1320 | dbgarg(cmd, "std=0x%08Lx\n", (long long unsigned)*id); | |
1321 | break; | |
1322 | } | |
1323 | case VIDIOC_S_STD: | |
1324 | { | |
1325 | v4l2_std_id *id = arg, norm; | |
1326 | ||
1327 | dbgarg(cmd, "std=%08Lx\n", (long long unsigned)*id); | |
1328 | ||
1329 | norm = (*id) & vfd->tvnorms; | |
1330 | if (vfd->tvnorms && !norm) /* Check if std is supported */ | |
1331 | break; | |
1332 | ||
1333 | /* Calls the specific handler */ | |
a399810c HV |
1334 | if (ops->vidioc_s_std) |
1335 | ret = ops->vidioc_s_std(file, fh, &norm); | |
35ea11ff HV |
1336 | else |
1337 | ret = -EINVAL; | |
1338 | ||
1339 | /* Updates standard information */ | |
1340 | if (ret >= 0) | |
1341 | vfd->current_norm = norm; | |
1342 | break; | |
1343 | } | |
1344 | case VIDIOC_QUERYSTD: | |
1345 | { | |
1346 | v4l2_std_id *p = arg; | |
1347 | ||
a399810c | 1348 | if (!ops->vidioc_querystd) |
35ea11ff | 1349 | break; |
a399810c | 1350 | ret = ops->vidioc_querystd(file, fh, arg); |
35ea11ff HV |
1351 | if (!ret) |
1352 | dbgarg(cmd, "detected std=%08Lx\n", | |
1353 | (unsigned long long)*p); | |
1354 | break; | |
1355 | } | |
1356 | /* ------ input switching ---------- */ | |
1357 | /* FIXME: Inputs can be handled inside videodev2 */ | |
1358 | case VIDIOC_ENUMINPUT: | |
1359 | { | |
1360 | struct v4l2_input *p = arg; | |
35ea11ff | 1361 | |
b6456c0c MK |
1362 | /* |
1363 | * We set the flags for CAP_PRESETS, CAP_CUSTOM_TIMINGS & | |
1364 | * CAP_STD here based on ioctl handler provided by the | |
1365 | * driver. If the driver doesn't support these | |
1366 | * for a specific input, it must override these flags. | |
1367 | */ | |
1368 | if (ops->vidioc_s_std) | |
1369 | p->capabilities |= V4L2_IN_CAP_STD; | |
1370 | if (ops->vidioc_s_dv_preset) | |
1371 | p->capabilities |= V4L2_IN_CAP_PRESETS; | |
1372 | if (ops->vidioc_s_dv_timings) | |
1373 | p->capabilities |= V4L2_IN_CAP_CUSTOM_TIMINGS; | |
1374 | ||
a399810c | 1375 | if (!ops->vidioc_enum_input) |
35ea11ff | 1376 | break; |
35ea11ff | 1377 | |
a399810c | 1378 | ret = ops->vidioc_enum_input(file, fh, p); |
35ea11ff HV |
1379 | if (!ret) |
1380 | dbgarg(cmd, "index=%d, name=%s, type=%d, " | |
1381 | "audioset=%d, " | |
1382 | "tuner=%d, std=%08Lx, status=%d\n", | |
1383 | p->index, p->name, p->type, p->audioset, | |
1384 | p->tuner, | |
1385 | (unsigned long long)p->std, | |
1386 | p->status); | |
1387 | break; | |
1388 | } | |
1389 | case VIDIOC_G_INPUT: | |
1390 | { | |
1391 | unsigned int *i = arg; | |
1392 | ||
a399810c | 1393 | if (!ops->vidioc_g_input) |
35ea11ff | 1394 | break; |
a399810c | 1395 | ret = ops->vidioc_g_input(file, fh, i); |
35ea11ff HV |
1396 | if (!ret) |
1397 | dbgarg(cmd, "value=%d\n", *i); | |
1398 | break; | |
1399 | } | |
1400 | case VIDIOC_S_INPUT: | |
1401 | { | |
1402 | unsigned int *i = arg; | |
1403 | ||
a399810c | 1404 | if (!ops->vidioc_s_input) |
35ea11ff HV |
1405 | break; |
1406 | dbgarg(cmd, "value=%d\n", *i); | |
a399810c | 1407 | ret = ops->vidioc_s_input(file, fh, *i); |
35ea11ff HV |
1408 | break; |
1409 | } | |
1410 | ||
1411 | /* ------ output switching ---------- */ | |
1412 | case VIDIOC_ENUMOUTPUT: | |
1413 | { | |
1414 | struct v4l2_output *p = arg; | |
35ea11ff | 1415 | |
a399810c | 1416 | if (!ops->vidioc_enum_output) |
35ea11ff | 1417 | break; |
35ea11ff | 1418 | |
b6456c0c MK |
1419 | /* |
1420 | * We set the flags for CAP_PRESETS, CAP_CUSTOM_TIMINGS & | |
1421 | * CAP_STD here based on ioctl handler provided by the | |
1422 | * driver. If the driver doesn't support these | |
1423 | * for a specific output, it must override these flags. | |
1424 | */ | |
1425 | if (ops->vidioc_s_std) | |
1426 | p->capabilities |= V4L2_OUT_CAP_STD; | |
1427 | if (ops->vidioc_s_dv_preset) | |
1428 | p->capabilities |= V4L2_OUT_CAP_PRESETS; | |
1429 | if (ops->vidioc_s_dv_timings) | |
1430 | p->capabilities |= V4L2_OUT_CAP_CUSTOM_TIMINGS; | |
1431 | ||
a399810c | 1432 | ret = ops->vidioc_enum_output(file, fh, p); |
35ea11ff HV |
1433 | if (!ret) |
1434 | dbgarg(cmd, "index=%d, name=%s, type=%d, " | |
1435 | "audioset=0x%x, " | |
1436 | "modulator=%d, std=0x%08Lx\n", | |
1437 | p->index, p->name, p->type, p->audioset, | |
1438 | p->modulator, (unsigned long long)p->std); | |
1439 | break; | |
1440 | } | |
1441 | case VIDIOC_G_OUTPUT: | |
1442 | { | |
1443 | unsigned int *i = arg; | |
1444 | ||
a399810c | 1445 | if (!ops->vidioc_g_output) |
35ea11ff | 1446 | break; |
a399810c | 1447 | ret = ops->vidioc_g_output(file, fh, i); |
35ea11ff HV |
1448 | if (!ret) |
1449 | dbgarg(cmd, "value=%d\n", *i); | |
1450 | break; | |
1451 | } | |
1452 | case VIDIOC_S_OUTPUT: | |
1453 | { | |
1454 | unsigned int *i = arg; | |
1455 | ||
a399810c | 1456 | if (!ops->vidioc_s_output) |
35ea11ff HV |
1457 | break; |
1458 | dbgarg(cmd, "value=%d\n", *i); | |
a399810c | 1459 | ret = ops->vidioc_s_output(file, fh, *i); |
35ea11ff HV |
1460 | break; |
1461 | } | |
1462 | ||
1463 | /* --- controls ---------------------------------------------- */ | |
1464 | case VIDIOC_QUERYCTRL: | |
1465 | { | |
1466 | struct v4l2_queryctrl *p = arg; | |
1467 | ||
11bbc1ca HV |
1468 | if (vfd->ctrl_handler) |
1469 | ret = v4l2_queryctrl(vfd->ctrl_handler, p); | |
1470 | else if (ops->vidioc_queryctrl) | |
1471 | ret = ops->vidioc_queryctrl(file, fh, p); | |
1472 | else | |
35ea11ff | 1473 | break; |
35ea11ff HV |
1474 | if (!ret) |
1475 | dbgarg(cmd, "id=0x%x, type=%d, name=%s, min/max=%d/%d, " | |
1476 | "step=%d, default=%d, flags=0x%08x\n", | |
1477 | p->id, p->type, p->name, | |
1478 | p->minimum, p->maximum, | |
1479 | p->step, p->default_value, p->flags); | |
1480 | else | |
1481 | dbgarg(cmd, "id=0x%x\n", p->id); | |
1482 | break; | |
1483 | } | |
1484 | case VIDIOC_G_CTRL: | |
1485 | { | |
1486 | struct v4l2_control *p = arg; | |
1487 | ||
11bbc1ca HV |
1488 | if (vfd->ctrl_handler) |
1489 | ret = v4l2_g_ctrl(vfd->ctrl_handler, p); | |
1490 | else if (ops->vidioc_g_ctrl) | |
a399810c HV |
1491 | ret = ops->vidioc_g_ctrl(file, fh, p); |
1492 | else if (ops->vidioc_g_ext_ctrls) { | |
35ea11ff HV |
1493 | struct v4l2_ext_controls ctrls; |
1494 | struct v4l2_ext_control ctrl; | |
1495 | ||
1496 | ctrls.ctrl_class = V4L2_CTRL_ID2CLASS(p->id); | |
1497 | ctrls.count = 1; | |
1498 | ctrls.controls = &ctrl; | |
1499 | ctrl.id = p->id; | |
1500 | ctrl.value = p->value; | |
1501 | if (check_ext_ctrls(&ctrls, 1)) { | |
a399810c | 1502 | ret = ops->vidioc_g_ext_ctrls(file, fh, &ctrls); |
35ea11ff HV |
1503 | if (ret == 0) |
1504 | p->value = ctrl.value; | |
1505 | } | |
1506 | } else | |
1507 | break; | |
1508 | if (!ret) | |
1509 | dbgarg(cmd, "id=0x%x, value=%d\n", p->id, p->value); | |
1510 | else | |
1511 | dbgarg(cmd, "id=0x%x\n", p->id); | |
1512 | break; | |
1513 | } | |
1514 | case VIDIOC_S_CTRL: | |
1515 | { | |
1516 | struct v4l2_control *p = arg; | |
1517 | struct v4l2_ext_controls ctrls; | |
1518 | struct v4l2_ext_control ctrl; | |
1519 | ||
11bbc1ca HV |
1520 | if (!vfd->ctrl_handler && |
1521 | !ops->vidioc_s_ctrl && !ops->vidioc_s_ext_ctrls) | |
35ea11ff HV |
1522 | break; |
1523 | ||
1524 | dbgarg(cmd, "id=0x%x, value=%d\n", p->id, p->value); | |
1525 | ||
11bbc1ca HV |
1526 | if (vfd->ctrl_handler) { |
1527 | ret = v4l2_s_ctrl(vfd->ctrl_handler, p); | |
1528 | break; | |
1529 | } | |
a399810c HV |
1530 | if (ops->vidioc_s_ctrl) { |
1531 | ret = ops->vidioc_s_ctrl(file, fh, p); | |
35ea11ff HV |
1532 | break; |
1533 | } | |
a399810c | 1534 | if (!ops->vidioc_s_ext_ctrls) |
35ea11ff HV |
1535 | break; |
1536 | ||
1537 | ctrls.ctrl_class = V4L2_CTRL_ID2CLASS(p->id); | |
1538 | ctrls.count = 1; | |
1539 | ctrls.controls = &ctrl; | |
1540 | ctrl.id = p->id; | |
1541 | ctrl.value = p->value; | |
1542 | if (check_ext_ctrls(&ctrls, 1)) | |
a399810c | 1543 | ret = ops->vidioc_s_ext_ctrls(file, fh, &ctrls); |
35ea11ff HV |
1544 | break; |
1545 | } | |
1546 | case VIDIOC_G_EXT_CTRLS: | |
1547 | { | |
1548 | struct v4l2_ext_controls *p = arg; | |
1549 | ||
1550 | p->error_idx = p->count; | |
11bbc1ca HV |
1551 | if (vfd->ctrl_handler) |
1552 | ret = v4l2_g_ext_ctrls(vfd->ctrl_handler, p); | |
1553 | else if (ops->vidioc_g_ext_ctrls && check_ext_ctrls(p, 0)) | |
a399810c | 1554 | ret = ops->vidioc_g_ext_ctrls(file, fh, p); |
11bbc1ca HV |
1555 | else |
1556 | break; | |
35ea11ff HV |
1557 | v4l_print_ext_ctrls(cmd, vfd, p, !ret); |
1558 | break; | |
1559 | } | |
1560 | case VIDIOC_S_EXT_CTRLS: | |
1561 | { | |
1562 | struct v4l2_ext_controls *p = arg; | |
1563 | ||
1564 | p->error_idx = p->count; | |
11bbc1ca | 1565 | if (!vfd->ctrl_handler && !ops->vidioc_s_ext_ctrls) |
35ea11ff HV |
1566 | break; |
1567 | v4l_print_ext_ctrls(cmd, vfd, p, 1); | |
11bbc1ca HV |
1568 | if (vfd->ctrl_handler) |
1569 | ret = v4l2_s_ext_ctrls(vfd->ctrl_handler, p); | |
1570 | else if (check_ext_ctrls(p, 0)) | |
a399810c | 1571 | ret = ops->vidioc_s_ext_ctrls(file, fh, p); |
35ea11ff HV |
1572 | break; |
1573 | } | |
1574 | case VIDIOC_TRY_EXT_CTRLS: | |
1575 | { | |
1576 | struct v4l2_ext_controls *p = arg; | |
1577 | ||
1578 | p->error_idx = p->count; | |
11bbc1ca | 1579 | if (!vfd->ctrl_handler && !ops->vidioc_try_ext_ctrls) |
35ea11ff HV |
1580 | break; |
1581 | v4l_print_ext_ctrls(cmd, vfd, p, 1); | |
11bbc1ca HV |
1582 | if (vfd->ctrl_handler) |
1583 | ret = v4l2_try_ext_ctrls(vfd->ctrl_handler, p); | |
1584 | else if (check_ext_ctrls(p, 0)) | |
a399810c | 1585 | ret = ops->vidioc_try_ext_ctrls(file, fh, p); |
35ea11ff HV |
1586 | break; |
1587 | } | |
1588 | case VIDIOC_QUERYMENU: | |
1589 | { | |
1590 | struct v4l2_querymenu *p = arg; | |
1591 | ||
11bbc1ca HV |
1592 | if (vfd->ctrl_handler) |
1593 | ret = v4l2_querymenu(vfd->ctrl_handler, p); | |
1594 | else if (ops->vidioc_querymenu) | |
1595 | ret = ops->vidioc_querymenu(file, fh, p); | |
1596 | else | |
35ea11ff | 1597 | break; |
35ea11ff HV |
1598 | if (!ret) |
1599 | dbgarg(cmd, "id=0x%x, index=%d, name=%s\n", | |
1600 | p->id, p->index, p->name); | |
1601 | else | |
1602 | dbgarg(cmd, "id=0x%x, index=%d\n", | |
1603 | p->id, p->index); | |
1604 | break; | |
1605 | } | |
1606 | /* --- audio ---------------------------------------------- */ | |
1607 | case VIDIOC_ENUMAUDIO: | |
1608 | { | |
1609 | struct v4l2_audio *p = arg; | |
1610 | ||
a399810c | 1611 | if (!ops->vidioc_enumaudio) |
35ea11ff | 1612 | break; |
a399810c | 1613 | ret = ops->vidioc_enumaudio(file, fh, p); |
35ea11ff HV |
1614 | if (!ret) |
1615 | dbgarg(cmd, "index=%d, name=%s, capability=0x%x, " | |
1616 | "mode=0x%x\n", p->index, p->name, | |
1617 | p->capability, p->mode); | |
1618 | else | |
1619 | dbgarg(cmd, "index=%d\n", p->index); | |
1620 | break; | |
1621 | } | |
1622 | case VIDIOC_G_AUDIO: | |
1623 | { | |
1624 | struct v4l2_audio *p = arg; | |
35ea11ff | 1625 | |
a399810c | 1626 | if (!ops->vidioc_g_audio) |
35ea11ff HV |
1627 | break; |
1628 | ||
a399810c | 1629 | ret = ops->vidioc_g_audio(file, fh, p); |
35ea11ff HV |
1630 | if (!ret) |
1631 | dbgarg(cmd, "index=%d, name=%s, capability=0x%x, " | |
1632 | "mode=0x%x\n", p->index, | |
1633 | p->name, p->capability, p->mode); | |
1634 | else | |
1635 | dbgarg(cmd, "index=%d\n", p->index); | |
1636 | break; | |
1637 | } | |
1638 | case VIDIOC_S_AUDIO: | |
1639 | { | |
1640 | struct v4l2_audio *p = arg; | |
1641 | ||
a399810c | 1642 | if (!ops->vidioc_s_audio) |
35ea11ff HV |
1643 | break; |
1644 | dbgarg(cmd, "index=%d, name=%s, capability=0x%x, " | |
1645 | "mode=0x%x\n", p->index, p->name, | |
1646 | p->capability, p->mode); | |
a399810c | 1647 | ret = ops->vidioc_s_audio(file, fh, p); |
35ea11ff HV |
1648 | break; |
1649 | } | |
1650 | case VIDIOC_ENUMAUDOUT: | |
1651 | { | |
1652 | struct v4l2_audioout *p = arg; | |
1653 | ||
a399810c | 1654 | if (!ops->vidioc_enumaudout) |
35ea11ff HV |
1655 | break; |
1656 | dbgarg(cmd, "Enum for index=%d\n", p->index); | |
a399810c | 1657 | ret = ops->vidioc_enumaudout(file, fh, p); |
35ea11ff HV |
1658 | if (!ret) |
1659 | dbgarg2("index=%d, name=%s, capability=%d, " | |
1660 | "mode=%d\n", p->index, p->name, | |
1661 | p->capability, p->mode); | |
1662 | break; | |
1663 | } | |
1664 | case VIDIOC_G_AUDOUT: | |
1665 | { | |
1666 | struct v4l2_audioout *p = arg; | |
1667 | ||
a399810c | 1668 | if (!ops->vidioc_g_audout) |
35ea11ff | 1669 | break; |
337f9d20 | 1670 | |
a399810c | 1671 | ret = ops->vidioc_g_audout(file, fh, p); |
35ea11ff HV |
1672 | if (!ret) |
1673 | dbgarg2("index=%d, name=%s, capability=%d, " | |
1674 | "mode=%d\n", p->index, p->name, | |
1675 | p->capability, p->mode); | |
1676 | break; | |
1677 | } | |
1678 | case VIDIOC_S_AUDOUT: | |
1679 | { | |
1680 | struct v4l2_audioout *p = arg; | |
1681 | ||
a399810c | 1682 | if (!ops->vidioc_s_audout) |
35ea11ff HV |
1683 | break; |
1684 | dbgarg(cmd, "index=%d, name=%s, capability=%d, " | |
1685 | "mode=%d\n", p->index, p->name, | |
1686 | p->capability, p->mode); | |
1687 | ||
a399810c | 1688 | ret = ops->vidioc_s_audout(file, fh, p); |
35ea11ff HV |
1689 | break; |
1690 | } | |
1691 | case VIDIOC_G_MODULATOR: | |
1692 | { | |
1693 | struct v4l2_modulator *p = arg; | |
1694 | ||
a399810c | 1695 | if (!ops->vidioc_g_modulator) |
35ea11ff | 1696 | break; |
a399810c | 1697 | ret = ops->vidioc_g_modulator(file, fh, p); |
35ea11ff HV |
1698 | if (!ret) |
1699 | dbgarg(cmd, "index=%d, name=%s, " | |
1700 | "capability=%d, rangelow=%d," | |
1701 | " rangehigh=%d, txsubchans=%d\n", | |
1702 | p->index, p->name, p->capability, | |
1703 | p->rangelow, p->rangehigh, | |
1704 | p->txsubchans); | |
1705 | break; | |
1706 | } | |
1707 | case VIDIOC_S_MODULATOR: | |
1708 | { | |
1709 | struct v4l2_modulator *p = arg; | |
1710 | ||
a399810c | 1711 | if (!ops->vidioc_s_modulator) |
35ea11ff HV |
1712 | break; |
1713 | dbgarg(cmd, "index=%d, name=%s, capability=%d, " | |
1714 | "rangelow=%d, rangehigh=%d, txsubchans=%d\n", | |
1715 | p->index, p->name, p->capability, p->rangelow, | |
1716 | p->rangehigh, p->txsubchans); | |
a399810c | 1717 | ret = ops->vidioc_s_modulator(file, fh, p); |
35ea11ff HV |
1718 | break; |
1719 | } | |
1720 | case VIDIOC_G_CROP: | |
1721 | { | |
1722 | struct v4l2_crop *p = arg; | |
1723 | ||
a399810c | 1724 | if (!ops->vidioc_g_crop) |
35ea11ff | 1725 | break; |
a56a18c3 | 1726 | |
35ea11ff | 1727 | dbgarg(cmd, "type=%s\n", prt_names(p->type, v4l2_type_names)); |
a399810c | 1728 | ret = ops->vidioc_g_crop(file, fh, p); |
35ea11ff HV |
1729 | if (!ret) |
1730 | dbgrect(vfd, "", &p->c); | |
1731 | break; | |
1732 | } | |
1733 | case VIDIOC_S_CROP: | |
1734 | { | |
1735 | struct v4l2_crop *p = arg; | |
1736 | ||
a399810c | 1737 | if (!ops->vidioc_s_crop) |
35ea11ff HV |
1738 | break; |
1739 | dbgarg(cmd, "type=%s\n", prt_names(p->type, v4l2_type_names)); | |
1740 | dbgrect(vfd, "", &p->c); | |
a399810c | 1741 | ret = ops->vidioc_s_crop(file, fh, p); |
35ea11ff HV |
1742 | break; |
1743 | } | |
1744 | case VIDIOC_CROPCAP: | |
1745 | { | |
1746 | struct v4l2_cropcap *p = arg; | |
1747 | ||
1748 | /*FIXME: Should also show v4l2_fract pixelaspect */ | |
a399810c | 1749 | if (!ops->vidioc_cropcap) |
35ea11ff | 1750 | break; |
a56a18c3 | 1751 | |
35ea11ff | 1752 | dbgarg(cmd, "type=%s\n", prt_names(p->type, v4l2_type_names)); |
a399810c | 1753 | ret = ops->vidioc_cropcap(file, fh, p); |
35ea11ff HV |
1754 | if (!ret) { |
1755 | dbgrect(vfd, "bounds ", &p->bounds); | |
1756 | dbgrect(vfd, "defrect ", &p->defrect); | |
1757 | } | |
1758 | break; | |
1759 | } | |
1760 | case VIDIOC_G_JPEGCOMP: | |
1761 | { | |
1762 | struct v4l2_jpegcompression *p = arg; | |
1763 | ||
a399810c | 1764 | if (!ops->vidioc_g_jpegcomp) |
35ea11ff | 1765 | break; |
a56a18c3 | 1766 | |
a399810c | 1767 | ret = ops->vidioc_g_jpegcomp(file, fh, p); |
35ea11ff HV |
1768 | if (!ret) |
1769 | dbgarg(cmd, "quality=%d, APPn=%d, " | |
1770 | "APP_len=%d, COM_len=%d, " | |
1771 | "jpeg_markers=%d\n", | |
1772 | p->quality, p->APPn, p->APP_len, | |
1773 | p->COM_len, p->jpeg_markers); | |
1774 | break; | |
1775 | } | |
1776 | case VIDIOC_S_JPEGCOMP: | |
1777 | { | |
1778 | struct v4l2_jpegcompression *p = arg; | |
1779 | ||
a399810c | 1780 | if (!ops->vidioc_g_jpegcomp) |
35ea11ff HV |
1781 | break; |
1782 | dbgarg(cmd, "quality=%d, APPn=%d, APP_len=%d, " | |
1783 | "COM_len=%d, jpeg_markers=%d\n", | |
1784 | p->quality, p->APPn, p->APP_len, | |
1785 | p->COM_len, p->jpeg_markers); | |
a399810c | 1786 | ret = ops->vidioc_s_jpegcomp(file, fh, p); |
35ea11ff HV |
1787 | break; |
1788 | } | |
1789 | case VIDIOC_G_ENC_INDEX: | |
1790 | { | |
1791 | struct v4l2_enc_idx *p = arg; | |
1792 | ||
a399810c | 1793 | if (!ops->vidioc_g_enc_index) |
35ea11ff | 1794 | break; |
a399810c | 1795 | ret = ops->vidioc_g_enc_index(file, fh, p); |
35ea11ff HV |
1796 | if (!ret) |
1797 | dbgarg(cmd, "entries=%d, entries_cap=%d\n", | |
1798 | p->entries, p->entries_cap); | |
1799 | break; | |
1800 | } | |
1801 | case VIDIOC_ENCODER_CMD: | |
1802 | { | |
1803 | struct v4l2_encoder_cmd *p = arg; | |
1804 | ||
a399810c | 1805 | if (!ops->vidioc_encoder_cmd) |
35ea11ff | 1806 | break; |
a399810c | 1807 | ret = ops->vidioc_encoder_cmd(file, fh, p); |
35ea11ff HV |
1808 | if (!ret) |
1809 | dbgarg(cmd, "cmd=%d, flags=%x\n", p->cmd, p->flags); | |
1810 | break; | |
1811 | } | |
1812 | case VIDIOC_TRY_ENCODER_CMD: | |
1813 | { | |
1814 | struct v4l2_encoder_cmd *p = arg; | |
1815 | ||
a399810c | 1816 | if (!ops->vidioc_try_encoder_cmd) |
35ea11ff | 1817 | break; |
a399810c | 1818 | ret = ops->vidioc_try_encoder_cmd(file, fh, p); |
35ea11ff HV |
1819 | if (!ret) |
1820 | dbgarg(cmd, "cmd=%d, flags=%x\n", p->cmd, p->flags); | |
1821 | break; | |
1822 | } | |
1823 | case VIDIOC_G_PARM: | |
1824 | { | |
1825 | struct v4l2_streamparm *p = arg; | |
35ea11ff | 1826 | |
a399810c | 1827 | if (ops->vidioc_g_parm) { |
34796bc0 TP |
1828 | ret = check_fmt(ops, p->type); |
1829 | if (ret) | |
1830 | break; | |
a399810c | 1831 | ret = ops->vidioc_g_parm(file, fh, p); |
35ea11ff | 1832 | } else { |
9bedc7f7 HV |
1833 | v4l2_std_id std = vfd->current_norm; |
1834 | ||
35ea11ff | 1835 | if (p->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) |
3f5e1824 | 1836 | break; |
35ea11ff | 1837 | |
35ea11ff | 1838 | ret = 0; |
9bedc7f7 HV |
1839 | if (ops->vidioc_g_std) |
1840 | ret = ops->vidioc_g_std(file, fh, &std); | |
1841 | else if (std == 0) | |
1842 | ret = -EINVAL; | |
1843 | if (ret == 0) | |
1844 | v4l2_video_std_frame_period(std, | |
1845 | &p->parm.capture.timeperframe); | |
35ea11ff HV |
1846 | } |
1847 | ||
1848 | dbgarg(cmd, "type=%d\n", p->type); | |
1849 | break; | |
1850 | } | |
1851 | case VIDIOC_S_PARM: | |
1852 | { | |
1853 | struct v4l2_streamparm *p = arg; | |
1854 | ||
a399810c | 1855 | if (!ops->vidioc_s_parm) |
35ea11ff | 1856 | break; |
34796bc0 TP |
1857 | ret = check_fmt(ops, p->type); |
1858 | if (ret) | |
1859 | break; | |
1860 | ||
35ea11ff | 1861 | dbgarg(cmd, "type=%d\n", p->type); |
a399810c | 1862 | ret = ops->vidioc_s_parm(file, fh, p); |
35ea11ff HV |
1863 | break; |
1864 | } | |
1865 | case VIDIOC_G_TUNER: | |
1866 | { | |
1867 | struct v4l2_tuner *p = arg; | |
35ea11ff | 1868 | |
a399810c | 1869 | if (!ops->vidioc_g_tuner) |
35ea11ff HV |
1870 | break; |
1871 | ||
a399810c | 1872 | ret = ops->vidioc_g_tuner(file, fh, p); |
35ea11ff HV |
1873 | if (!ret) |
1874 | dbgarg(cmd, "index=%d, name=%s, type=%d, " | |
1875 | "capability=0x%x, rangelow=%d, " | |
1876 | "rangehigh=%d, signal=%d, afc=%d, " | |
1877 | "rxsubchans=0x%x, audmode=%d\n", | |
1878 | p->index, p->name, p->type, | |
1879 | p->capability, p->rangelow, | |
1880 | p->rangehigh, p->signal, p->afc, | |
1881 | p->rxsubchans, p->audmode); | |
1882 | break; | |
1883 | } | |
1884 | case VIDIOC_S_TUNER: | |
1885 | { | |
1886 | struct v4l2_tuner *p = arg; | |
1887 | ||
a399810c | 1888 | if (!ops->vidioc_s_tuner) |
35ea11ff HV |
1889 | break; |
1890 | dbgarg(cmd, "index=%d, name=%s, type=%d, " | |
1891 | "capability=0x%x, rangelow=%d, " | |
1892 | "rangehigh=%d, signal=%d, afc=%d, " | |
1893 | "rxsubchans=0x%x, audmode=%d\n", | |
1894 | p->index, p->name, p->type, | |
1895 | p->capability, p->rangelow, | |
1896 | p->rangehigh, p->signal, p->afc, | |
1897 | p->rxsubchans, p->audmode); | |
a399810c | 1898 | ret = ops->vidioc_s_tuner(file, fh, p); |
35ea11ff HV |
1899 | break; |
1900 | } | |
1901 | case VIDIOC_G_FREQUENCY: | |
1902 | { | |
1903 | struct v4l2_frequency *p = arg; | |
1904 | ||
a399810c | 1905 | if (!ops->vidioc_g_frequency) |
35ea11ff HV |
1906 | break; |
1907 | ||
a399810c | 1908 | ret = ops->vidioc_g_frequency(file, fh, p); |
35ea11ff HV |
1909 | if (!ret) |
1910 | dbgarg(cmd, "tuner=%d, type=%d, frequency=%d\n", | |
1911 | p->tuner, p->type, p->frequency); | |
1912 | break; | |
1913 | } | |
1914 | case VIDIOC_S_FREQUENCY: | |
1915 | { | |
1916 | struct v4l2_frequency *p = arg; | |
1917 | ||
a399810c | 1918 | if (!ops->vidioc_s_frequency) |
35ea11ff HV |
1919 | break; |
1920 | dbgarg(cmd, "tuner=%d, type=%d, frequency=%d\n", | |
1921 | p->tuner, p->type, p->frequency); | |
a399810c | 1922 | ret = ops->vidioc_s_frequency(file, fh, p); |
35ea11ff HV |
1923 | break; |
1924 | } | |
1925 | case VIDIOC_G_SLICED_VBI_CAP: | |
1926 | { | |
1927 | struct v4l2_sliced_vbi_cap *p = arg; | |
35ea11ff | 1928 | |
a399810c | 1929 | if (!ops->vidioc_g_sliced_vbi_cap) |
35ea11ff | 1930 | break; |
19c96e4b TP |
1931 | |
1932 | /* Clear up to type, everything after type is zerod already */ | |
1933 | memset(p, 0, offsetof(struct v4l2_sliced_vbi_cap, type)); | |
1934 | ||
35ea11ff | 1935 | dbgarg(cmd, "type=%s\n", prt_names(p->type, v4l2_type_names)); |
a399810c | 1936 | ret = ops->vidioc_g_sliced_vbi_cap(file, fh, p); |
35ea11ff HV |
1937 | if (!ret) |
1938 | dbgarg2("service_set=%d\n", p->service_set); | |
1939 | break; | |
1940 | } | |
1941 | case VIDIOC_LOG_STATUS: | |
1942 | { | |
a399810c | 1943 | if (!ops->vidioc_log_status) |
35ea11ff | 1944 | break; |
a399810c | 1945 | ret = ops->vidioc_log_status(file, fh); |
35ea11ff HV |
1946 | break; |
1947 | } | |
1948 | #ifdef CONFIG_VIDEO_ADV_DEBUG | |
1949 | case VIDIOC_DBG_G_REGISTER: | |
1950 | { | |
aecde8b5 | 1951 | struct v4l2_dbg_register *p = arg; |
35ea11ff | 1952 | |
a1198ccf HV |
1953 | if (ops->vidioc_g_register) { |
1954 | if (!capable(CAP_SYS_ADMIN)) | |
1955 | ret = -EPERM; | |
1956 | else | |
1957 | ret = ops->vidioc_g_register(file, fh, p); | |
1958 | } | |
35ea11ff HV |
1959 | break; |
1960 | } | |
1961 | case VIDIOC_DBG_S_REGISTER: | |
1962 | { | |
aecde8b5 | 1963 | struct v4l2_dbg_register *p = arg; |
35ea11ff | 1964 | |
a1198ccf HV |
1965 | if (ops->vidioc_s_register) { |
1966 | if (!capable(CAP_SYS_ADMIN)) | |
1967 | ret = -EPERM; | |
1968 | else | |
1969 | ret = ops->vidioc_s_register(file, fh, p); | |
1970 | } | |
35ea11ff HV |
1971 | break; |
1972 | } | |
1973 | #endif | |
aecde8b5 | 1974 | case VIDIOC_DBG_G_CHIP_IDENT: |
35ea11ff | 1975 | { |
aecde8b5 | 1976 | struct v4l2_dbg_chip_ident *p = arg; |
35ea11ff | 1977 | |
a399810c | 1978 | if (!ops->vidioc_g_chip_ident) |
35ea11ff | 1979 | break; |
80b36e0f HV |
1980 | p->ident = V4L2_IDENT_NONE; |
1981 | p->revision = 0; | |
a399810c | 1982 | ret = ops->vidioc_g_chip_ident(file, fh, p); |
35ea11ff HV |
1983 | if (!ret) |
1984 | dbgarg(cmd, "chip_ident=%u, revision=0x%x\n", p->ident, p->revision); | |
1985 | break; | |
1986 | } | |
35ea11ff HV |
1987 | case VIDIOC_S_HW_FREQ_SEEK: |
1988 | { | |
1989 | struct v4l2_hw_freq_seek *p = arg; | |
1990 | ||
a399810c | 1991 | if (!ops->vidioc_s_hw_freq_seek) |
35ea11ff HV |
1992 | break; |
1993 | dbgarg(cmd, | |
1994 | "tuner=%d, type=%d, seek_upward=%d, wrap_around=%d\n", | |
1995 | p->tuner, p->type, p->seek_upward, p->wrap_around); | |
a399810c HV |
1996 | ret = ops->vidioc_s_hw_freq_seek(file, fh, p); |
1997 | break; | |
1998 | } | |
74d83fa0 MCC |
1999 | case VIDIOC_ENUM_FRAMESIZES: |
2000 | { | |
2001 | struct v4l2_frmsizeenum *p = arg; | |
2002 | ||
2003 | if (!ops->vidioc_enum_framesizes) | |
2004 | break; | |
2005 | ||
74d83fa0 MCC |
2006 | ret = ops->vidioc_enum_framesizes(file, fh, p); |
2007 | dbgarg(cmd, | |
d1afe425 MCC |
2008 | "index=%d, pixelformat=%c%c%c%c, type=%d ", |
2009 | p->index, | |
2010 | (p->pixel_format & 0xff), | |
2011 | (p->pixel_format >> 8) & 0xff, | |
2012 | (p->pixel_format >> 16) & 0xff, | |
2013 | (p->pixel_format >> 24) & 0xff, | |
2014 | p->type); | |
74d83fa0 MCC |
2015 | switch (p->type) { |
2016 | case V4L2_FRMSIZE_TYPE_DISCRETE: | |
d33fbcbb | 2017 | dbgarg3("width = %d, height=%d\n", |
74d83fa0 MCC |
2018 | p->discrete.width, p->discrete.height); |
2019 | break; | |
2020 | case V4L2_FRMSIZE_TYPE_STEPWISE: | |
d33fbcbb | 2021 | dbgarg3("min %dx%d, max %dx%d, step %dx%d\n", |
74d83fa0 MCC |
2022 | p->stepwise.min_width, p->stepwise.min_height, |
2023 | p->stepwise.step_width, p->stepwise.step_height, | |
2024 | p->stepwise.max_width, p->stepwise.max_height); | |
2025 | break; | |
2026 | case V4L2_FRMSIZE_TYPE_CONTINUOUS: | |
d33fbcbb | 2027 | dbgarg3("continuous\n"); |
74d83fa0 MCC |
2028 | break; |
2029 | default: | |
d33fbcbb | 2030 | dbgarg3("- Unknown type!\n"); |
74d83fa0 MCC |
2031 | } |
2032 | ||
2033 | break; | |
2034 | } | |
2035 | case VIDIOC_ENUM_FRAMEINTERVALS: | |
2036 | { | |
2037 | struct v4l2_frmivalenum *p = arg; | |
2038 | ||
2039 | if (!ops->vidioc_enum_frameintervals) | |
2040 | break; | |
2041 | ||
74d83fa0 MCC |
2042 | ret = ops->vidioc_enum_frameintervals(file, fh, p); |
2043 | dbgarg(cmd, | |
2044 | "index=%d, pixelformat=%d, width=%d, height=%d, type=%d ", | |
2045 | p->index, p->pixel_format, | |
2046 | p->width, p->height, p->type); | |
2047 | switch (p->type) { | |
2048 | case V4L2_FRMIVAL_TYPE_DISCRETE: | |
2049 | dbgarg2("fps=%d/%d\n", | |
2050 | p->discrete.numerator, | |
2051 | p->discrete.denominator); | |
2052 | break; | |
2053 | case V4L2_FRMIVAL_TYPE_STEPWISE: | |
1958578d MCC |
2054 | dbgarg2("min=%d/%d, max=%d/%d, step=%d/%d\n", |
2055 | p->stepwise.min.numerator, | |
2056 | p->stepwise.min.denominator, | |
2057 | p->stepwise.max.numerator, | |
2058 | p->stepwise.max.denominator, | |
2059 | p->stepwise.step.numerator, | |
2060 | p->stepwise.step.denominator); | |
74d83fa0 MCC |
2061 | break; |
2062 | case V4L2_FRMIVAL_TYPE_CONTINUOUS: | |
2063 | dbgarg2("continuous\n"); | |
2064 | break; | |
2065 | default: | |
2066 | dbgarg2("- Unknown type!\n"); | |
2067 | } | |
2068 | break; | |
2069 | } | |
b6456c0c MK |
2070 | case VIDIOC_ENUM_DV_PRESETS: |
2071 | { | |
2072 | struct v4l2_dv_enum_preset *p = arg; | |
2073 | ||
2074 | if (!ops->vidioc_enum_dv_presets) | |
2075 | break; | |
2076 | ||
2077 | ret = ops->vidioc_enum_dv_presets(file, fh, p); | |
2078 | if (!ret) | |
2079 | dbgarg(cmd, | |
2080 | "index=%d, preset=%d, name=%s, width=%d," | |
2081 | " height=%d ", | |
2082 | p->index, p->preset, p->name, p->width, | |
2083 | p->height); | |
2084 | break; | |
2085 | } | |
2086 | case VIDIOC_S_DV_PRESET: | |
2087 | { | |
2088 | struct v4l2_dv_preset *p = arg; | |
2089 | ||
2090 | if (!ops->vidioc_s_dv_preset) | |
2091 | break; | |
2092 | ||
2093 | dbgarg(cmd, "preset=%d\n", p->preset); | |
2094 | ret = ops->vidioc_s_dv_preset(file, fh, p); | |
2095 | break; | |
2096 | } | |
2097 | case VIDIOC_G_DV_PRESET: | |
2098 | { | |
2099 | struct v4l2_dv_preset *p = arg; | |
2100 | ||
2101 | if (!ops->vidioc_g_dv_preset) | |
2102 | break; | |
2103 | ||
2104 | ret = ops->vidioc_g_dv_preset(file, fh, p); | |
2105 | if (!ret) | |
2106 | dbgarg(cmd, "preset=%d\n", p->preset); | |
2107 | break; | |
2108 | } | |
2109 | case VIDIOC_QUERY_DV_PRESET: | |
2110 | { | |
2111 | struct v4l2_dv_preset *p = arg; | |
2112 | ||
2113 | if (!ops->vidioc_query_dv_preset) | |
2114 | break; | |
2115 | ||
2116 | ret = ops->vidioc_query_dv_preset(file, fh, p); | |
2117 | if (!ret) | |
2118 | dbgarg(cmd, "preset=%d\n", p->preset); | |
2119 | break; | |
2120 | } | |
2121 | case VIDIOC_S_DV_TIMINGS: | |
2122 | { | |
2123 | struct v4l2_dv_timings *p = arg; | |
2124 | ||
2125 | if (!ops->vidioc_s_dv_timings) | |
2126 | break; | |
2127 | ||
2128 | switch (p->type) { | |
2129 | case V4L2_DV_BT_656_1120: | |
2130 | dbgarg2("bt-656/1120:interlaced=%d, pixelclock=%lld," | |
2131 | " width=%d, height=%d, polarities=%x," | |
2132 | " hfrontporch=%d, hsync=%d, hbackporch=%d," | |
2133 | " vfrontporch=%d, vsync=%d, vbackporch=%d," | |
2134 | " il_vfrontporch=%d, il_vsync=%d," | |
2135 | " il_vbackporch=%d\n", | |
2136 | p->bt.interlaced, p->bt.pixelclock, | |
2137 | p->bt.width, p->bt.height, p->bt.polarities, | |
2138 | p->bt.hfrontporch, p->bt.hsync, | |
2139 | p->bt.hbackporch, p->bt.vfrontporch, | |
2140 | p->bt.vsync, p->bt.vbackporch, | |
2141 | p->bt.il_vfrontporch, p->bt.il_vsync, | |
2142 | p->bt.il_vbackporch); | |
2143 | ret = ops->vidioc_s_dv_timings(file, fh, p); | |
2144 | break; | |
2145 | default: | |
2146 | dbgarg2("Unknown type %d!\n", p->type); | |
2147 | break; | |
2148 | } | |
2149 | break; | |
2150 | } | |
2151 | case VIDIOC_G_DV_TIMINGS: | |
2152 | { | |
2153 | struct v4l2_dv_timings *p = arg; | |
2154 | ||
2155 | if (!ops->vidioc_g_dv_timings) | |
2156 | break; | |
2157 | ||
2158 | ret = ops->vidioc_g_dv_timings(file, fh, p); | |
2159 | if (!ret) { | |
2160 | switch (p->type) { | |
2161 | case V4L2_DV_BT_656_1120: | |
2162 | dbgarg2("bt-656/1120:interlaced=%d," | |
2163 | " pixelclock=%lld," | |
2164 | " width=%d, height=%d, polarities=%x," | |
2165 | " hfrontporch=%d, hsync=%d," | |
2166 | " hbackporch=%d, vfrontporch=%d," | |
2167 | " vsync=%d, vbackporch=%d," | |
2168 | " il_vfrontporch=%d, il_vsync=%d," | |
2169 | " il_vbackporch=%d\n", | |
2170 | p->bt.interlaced, p->bt.pixelclock, | |
2171 | p->bt.width, p->bt.height, | |
2172 | p->bt.polarities, p->bt.hfrontporch, | |
2173 | p->bt.hsync, p->bt.hbackporch, | |
2174 | p->bt.vfrontporch, p->bt.vsync, | |
2175 | p->bt.vbackporch, p->bt.il_vfrontporch, | |
2176 | p->bt.il_vsync, p->bt.il_vbackporch); | |
2177 | break; | |
2178 | default: | |
2179 | dbgarg2("Unknown type %d!\n", p->type); | |
2180 | break; | |
2181 | } | |
2182 | } | |
2183 | break; | |
2184 | } | |
d3d7c963 SA |
2185 | case VIDIOC_DQEVENT: |
2186 | { | |
2187 | struct v4l2_event *ev = arg; | |
2188 | ||
2189 | if (!ops->vidioc_subscribe_event) | |
2190 | break; | |
2191 | ||
2192 | ret = v4l2_event_dequeue(fh, ev, file->f_flags & O_NONBLOCK); | |
2193 | if (ret < 0) { | |
2194 | dbgarg(cmd, "no pending events?"); | |
2195 | break; | |
2196 | } | |
2197 | dbgarg(cmd, | |
2198 | "pending=%d, type=0x%8.8x, sequence=%d, " | |
2199 | "timestamp=%lu.%9.9lu ", | |
2200 | ev->pending, ev->type, ev->sequence, | |
2201 | ev->timestamp.tv_sec, ev->timestamp.tv_nsec); | |
2202 | break; | |
2203 | } | |
2204 | case VIDIOC_SUBSCRIBE_EVENT: | |
2205 | { | |
2206 | struct v4l2_event_subscription *sub = arg; | |
2207 | ||
2208 | if (!ops->vidioc_subscribe_event) | |
2209 | break; | |
74d83fa0 | 2210 | |
d3d7c963 SA |
2211 | ret = ops->vidioc_subscribe_event(fh, sub); |
2212 | if (ret < 0) { | |
2213 | dbgarg(cmd, "failed, ret=%ld", ret); | |
2214 | break; | |
2215 | } | |
2216 | dbgarg(cmd, "type=0x%8.8x", sub->type); | |
2217 | break; | |
2218 | } | |
2219 | case VIDIOC_UNSUBSCRIBE_EVENT: | |
2220 | { | |
2221 | struct v4l2_event_subscription *sub = arg; | |
2222 | ||
2223 | if (!ops->vidioc_unsubscribe_event) | |
2224 | break; | |
2225 | ||
2226 | ret = ops->vidioc_unsubscribe_event(fh, sub); | |
2227 | if (ret < 0) { | |
2228 | dbgarg(cmd, "failed, ret=%ld", ret); | |
2229 | break; | |
2230 | } | |
2231 | dbgarg(cmd, "type=0x%8.8x", sub->type); | |
2232 | break; | |
2233 | } | |
a399810c HV |
2234 | default: |
2235 | { | |
2236 | if (!ops->vidioc_default) | |
2237 | break; | |
2238 | ret = ops->vidioc_default(file, fh, cmd, arg); | |
35ea11ff HV |
2239 | break; |
2240 | } | |
2241 | } /* switch */ | |
2242 | ||
2243 | if (vfd->debug & V4L2_DEBUG_IOCTL_ARG) { | |
2244 | if (ret < 0) { | |
2245 | v4l_print_ioctl(vfd->name, cmd); | |
069b7479 | 2246 | printk(KERN_CONT " error %ld\n", ret); |
35ea11ff HV |
2247 | } |
2248 | } | |
2249 | ||
2250 | return ret; | |
2251 | } | |
2252 | ||
19c96e4b TP |
2253 | /* In some cases, only a few fields are used as input, i.e. when the app sets |
2254 | * "index" and then the driver fills in the rest of the structure for the thing | |
2255 | * with that index. We only need to copy up the first non-input field. */ | |
2256 | static unsigned long cmd_input_size(unsigned int cmd) | |
2257 | { | |
2258 | /* Size of structure up to and including 'field' */ | |
9f1a693f HV |
2259 | #define CMDINSIZE(cmd, type, field) \ |
2260 | case VIDIOC_##cmd: \ | |
2261 | return offsetof(struct v4l2_##type, field) + \ | |
2262 | sizeof(((struct v4l2_##type *)0)->field); | |
19c96e4b | 2263 | |
9f1a693f | 2264 | switch (cmd) { |
19c96e4b TP |
2265 | CMDINSIZE(ENUM_FMT, fmtdesc, type); |
2266 | CMDINSIZE(G_FMT, format, type); | |
d14e6d76 | 2267 | CMDINSIZE(QUERYBUF, buffer, length); |
19c96e4b TP |
2268 | CMDINSIZE(G_PARM, streamparm, type); |
2269 | CMDINSIZE(ENUMSTD, standard, index); | |
2270 | CMDINSIZE(ENUMINPUT, input, index); | |
2271 | CMDINSIZE(G_CTRL, control, id); | |
2272 | CMDINSIZE(G_TUNER, tuner, index); | |
2273 | CMDINSIZE(QUERYCTRL, queryctrl, id); | |
2274 | CMDINSIZE(QUERYMENU, querymenu, index); | |
2275 | CMDINSIZE(ENUMOUTPUT, output, index); | |
2276 | CMDINSIZE(G_MODULATOR, modulator, index); | |
2277 | CMDINSIZE(G_FREQUENCY, frequency, tuner); | |
2278 | CMDINSIZE(CROPCAP, cropcap, type); | |
2279 | CMDINSIZE(G_CROP, crop, type); | |
2280 | CMDINSIZE(ENUMAUDIO, audio, index); | |
2281 | CMDINSIZE(ENUMAUDOUT, audioout, index); | |
2282 | CMDINSIZE(ENCODER_CMD, encoder_cmd, flags); | |
2283 | CMDINSIZE(TRY_ENCODER_CMD, encoder_cmd, flags); | |
2284 | CMDINSIZE(G_SLICED_VBI_CAP, sliced_vbi_cap, type); | |
2285 | CMDINSIZE(ENUM_FRAMESIZES, frmsizeenum, pixel_format); | |
2286 | CMDINSIZE(ENUM_FRAMEINTERVALS, frmivalenum, height); | |
2287 | default: | |
2288 | return _IOC_SIZE(cmd); | |
2289 | } | |
2290 | } | |
2291 | ||
d14e6d76 PO |
2292 | static int check_array_args(unsigned int cmd, void *parg, size_t *array_size, |
2293 | void * __user *user_ptr, void ***kernel_ptr) | |
2294 | { | |
2295 | int ret = 0; | |
2296 | ||
2297 | switch (cmd) { | |
2298 | case VIDIOC_QUERYBUF: | |
2299 | case VIDIOC_QBUF: | |
2300 | case VIDIOC_DQBUF: { | |
2301 | struct v4l2_buffer *buf = parg; | |
2302 | ||
2303 | if (V4L2_TYPE_IS_MULTIPLANAR(buf->type) && buf->length > 0) { | |
2304 | if (buf->length > VIDEO_MAX_PLANES) { | |
2305 | ret = -EINVAL; | |
2306 | break; | |
2307 | } | |
2308 | *user_ptr = (void __user *)buf->m.planes; | |
2309 | *kernel_ptr = (void **)&buf->m.planes; | |
2310 | *array_size = sizeof(struct v4l2_plane) * buf->length; | |
2311 | ret = 1; | |
2312 | } | |
2313 | break; | |
2314 | } | |
2315 | ||
2316 | case VIDIOC_S_EXT_CTRLS: | |
2317 | case VIDIOC_G_EXT_CTRLS: | |
2318 | case VIDIOC_TRY_EXT_CTRLS: { | |
2319 | struct v4l2_ext_controls *ctrls = parg; | |
2320 | ||
2321 | if (ctrls->count != 0) { | |
2322 | *user_ptr = (void __user *)ctrls->controls; | |
2323 | *kernel_ptr = (void **)&ctrls->controls; | |
2324 | *array_size = sizeof(struct v4l2_ext_control) | |
2325 | * ctrls->count; | |
2326 | ret = 1; | |
2327 | } | |
2328 | break; | |
2329 | } | |
2330 | } | |
2331 | ||
2332 | return ret; | |
2333 | } | |
2334 | ||
069b7479 | 2335 | long video_ioctl2(struct file *file, |
35ea11ff HV |
2336 | unsigned int cmd, unsigned long arg) |
2337 | { | |
2338 | char sbuf[128]; | |
2339 | void *mbuf = NULL; | |
1d94aa36 | 2340 | void *parg = (void *)arg; |
069b7479 | 2341 | long err = -EINVAL; |
d14e6d76 PO |
2342 | bool has_array_args; |
2343 | size_t array_size = 0; | |
35ea11ff | 2344 | void __user *user_ptr = NULL; |
d14e6d76 | 2345 | void **kernel_ptr = NULL; |
35ea11ff | 2346 | |
35ea11ff | 2347 | /* Copy arguments into temp kernel buffer */ |
337f9d20 | 2348 | if (_IOC_DIR(cmd) != _IOC_NONE) { |
35ea11ff HV |
2349 | if (_IOC_SIZE(cmd) <= sizeof(sbuf)) { |
2350 | parg = sbuf; | |
2351 | } else { | |
2352 | /* too big to allocate from stack */ | |
2353 | mbuf = kmalloc(_IOC_SIZE(cmd), GFP_KERNEL); | |
2354 | if (NULL == mbuf) | |
2355 | return -ENOMEM; | |
2356 | parg = mbuf; | |
2357 | } | |
2358 | ||
2359 | err = -EFAULT; | |
19c96e4b TP |
2360 | if (_IOC_DIR(cmd) & _IOC_WRITE) { |
2361 | unsigned long n = cmd_input_size(cmd); | |
2362 | ||
2363 | if (copy_from_user(parg, (void __user *)arg, n)) | |
35ea11ff | 2364 | goto out; |
19c96e4b TP |
2365 | |
2366 | /* zero out anything we don't copy from userspace */ | |
2367 | if (n < _IOC_SIZE(cmd)) | |
2368 | memset((u8 *)parg + n, 0, _IOC_SIZE(cmd) - n); | |
337f9d20 TP |
2369 | } else { |
2370 | /* read-only ioctl */ | |
2371 | memset(parg, 0, _IOC_SIZE(cmd)); | |
19c96e4b | 2372 | } |
35ea11ff HV |
2373 | } |
2374 | ||
d14e6d76 PO |
2375 | err = check_array_args(cmd, parg, &array_size, &user_ptr, &kernel_ptr); |
2376 | if (err < 0) | |
2377 | goto out; | |
2378 | has_array_args = err; | |
35ea11ff | 2379 | |
d14e6d76 PO |
2380 | if (has_array_args) { |
2381 | /* | |
2382 | * When adding new types of array args, make sure that the | |
2383 | * parent argument to ioctl (which contains the pointer to the | |
2384 | * array) fits into sbuf (so that mbuf will still remain | |
2385 | * unused up to here). | |
2386 | */ | |
2387 | mbuf = kmalloc(array_size, GFP_KERNEL); | |
2388 | err = -ENOMEM; | |
2389 | if (NULL == mbuf) | |
2390 | goto out_array_args; | |
2391 | err = -EFAULT; | |
2392 | if (copy_from_user(mbuf, user_ptr, array_size)) | |
2393 | goto out_array_args; | |
2394 | *kernel_ptr = mbuf; | |
35ea11ff HV |
2395 | } |
2396 | ||
2397 | /* Handles IOCTL */ | |
b1f88407 | 2398 | err = __video_do_ioctl(file, cmd, parg); |
35ea11ff HV |
2399 | if (err == -ENOIOCTLCMD) |
2400 | err = -EINVAL; | |
35ea11ff | 2401 | |
d14e6d76 PO |
2402 | if (has_array_args) { |
2403 | *kernel_ptr = user_ptr; | |
2404 | if (copy_to_user(user_ptr, mbuf, array_size)) | |
35ea11ff | 2405 | err = -EFAULT; |
d14e6d76 | 2406 | goto out_array_args; |
35ea11ff HV |
2407 | } |
2408 | if (err < 0) | |
2409 | goto out; | |
2410 | ||
d14e6d76 | 2411 | out_array_args: |
35ea11ff HV |
2412 | /* Copy results into user buffer */ |
2413 | switch (_IOC_DIR(cmd)) { | |
2414 | case _IOC_READ: | |
2415 | case (_IOC_WRITE | _IOC_READ): | |
2416 | if (copy_to_user((void __user *)arg, parg, _IOC_SIZE(cmd))) | |
2417 | err = -EFAULT; | |
2418 | break; | |
2419 | } | |
2420 | ||
2421 | out: | |
2422 | kfree(mbuf); | |
2423 | return err; | |
2424 | } | |
8a522c91 | 2425 | EXPORT_SYMBOL(video_ioctl2); |