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path: root/drivers/media/video/videodev.c
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Diffstat (limited to 'drivers/media/video/videodev.c')
-rw-r--r--drivers/media/video/videodev.c444
1 files changed, 385 insertions, 59 deletions
diff --git a/drivers/media/video/videodev.c b/drivers/media/video/videodev.c
index 28655f8983c6..0d9b63762a48 100644
--- a/drivers/media/video/videodev.c
+++ b/drivers/media/video/videodev.c
@@ -46,10 +46,373 @@
46#include <linux/videodev.h> 46#include <linux/videodev.h>
47#endif 47#endif
48#include <media/v4l2-common.h> 48#include <media/v4l2-common.h>
49#include <linux/video_decoder.h>
49 50
50#define VIDEO_NUM_DEVICES 256 51#define VIDEO_NUM_DEVICES 256
51#define VIDEO_NAME "video4linux" 52#define VIDEO_NAME "video4linux"
52 53
54/* video4linux standard ID conversion to standard name
55 */
56char *v4l2_norm_to_name(v4l2_std_id id)
57{
58 char *name;
59 u32 myid = id;
60
61 /* HACK: ppc32 architecture doesn't have __ucmpdi2 function to handle
62 64 bit comparations. So, on that architecture, with some gcc
63 variants, compilation fails. Currently, the max value is 30bit wide.
64 */
65 BUG_ON(myid != id);
66
67 switch (myid) {
68 case V4L2_STD_PAL:
69 name = "PAL";
70 break;
71 case V4L2_STD_PAL_BG:
72 name = "PAL-BG";
73 break;
74 case V4L2_STD_PAL_DK:
75 name = "PAL-DK";
76 break;
77 case V4L2_STD_PAL_B:
78 name = "PAL-B";
79 break;
80 case V4L2_STD_PAL_B1:
81 name = "PAL-B1";
82 break;
83 case V4L2_STD_PAL_G:
84 name = "PAL-G";
85 break;
86 case V4L2_STD_PAL_H:
87 name = "PAL-H";
88 break;
89 case V4L2_STD_PAL_I:
90 name = "PAL-I";
91 break;
92 case V4L2_STD_PAL_D:
93 name = "PAL-D";
94 break;
95 case V4L2_STD_PAL_D1:
96 name = "PAL-D1";
97 break;
98 case V4L2_STD_PAL_K:
99 name = "PAL-K";
100 break;
101 case V4L2_STD_PAL_M:
102 name = "PAL-M";
103 break;
104 case V4L2_STD_PAL_N:
105 name = "PAL-N";
106 break;
107 case V4L2_STD_PAL_Nc:
108 name = "PAL-Nc";
109 break;
110 case V4L2_STD_PAL_60:
111 name = "PAL-60";
112 break;
113 case V4L2_STD_NTSC:
114 name = "NTSC";
115 break;
116 case V4L2_STD_NTSC_M:
117 name = "NTSC-M";
118 break;
119 case V4L2_STD_NTSC_M_JP:
120 name = "NTSC-M-JP";
121 break;
122 case V4L2_STD_NTSC_443:
123 name = "NTSC-443";
124 break;
125 case V4L2_STD_NTSC_M_KR:
126 name = "NTSC-M-KR";
127 break;
128 case V4L2_STD_SECAM:
129 name = "SECAM";
130 break;
131 case V4L2_STD_SECAM_DK:
132 name = "SECAM-DK";
133 break;
134 case V4L2_STD_SECAM_B:
135 name = "SECAM-B";
136 break;
137 case V4L2_STD_SECAM_D:
138 name = "SECAM-D";
139 break;
140 case V4L2_STD_SECAM_G:
141 name = "SECAM-G";
142 break;
143 case V4L2_STD_SECAM_H:
144 name = "SECAM-H";
145 break;
146 case V4L2_STD_SECAM_K:
147 name = "SECAM-K";
148 break;
149 case V4L2_STD_SECAM_K1:
150 name = "SECAM-K1";
151 break;
152 case V4L2_STD_SECAM_L:
153 name = "SECAM-L";
154 break;
155 case V4L2_STD_SECAM_LC:
156 name = "SECAM-LC";
157 break;
158 default:
159 name = "Unknown";
160 break;
161 }
162
163 return name;
164}
165EXPORT_SYMBOL(v4l2_norm_to_name);
166
167/* Fill in the fields of a v4l2_standard structure according to the
168 'id' and 'transmission' parameters. Returns negative on error. */
169int v4l2_video_std_construct(struct v4l2_standard *vs,
170 int id, char *name)
171{
172 u32 index = vs->index;
173
174 memset(vs, 0, sizeof(struct v4l2_standard));
175 vs->index = index;
176 vs->id = id;
177 if (id & V4L2_STD_525_60) {
178 vs->frameperiod.numerator = 1001;
179 vs->frameperiod.denominator = 30000;
180 vs->framelines = 525;
181 } else {
182 vs->frameperiod.numerator = 1;
183 vs->frameperiod.denominator = 25;
184 vs->framelines = 625;
185 }
186 strlcpy(vs->name, name, sizeof(vs->name));
187 return 0;
188}
189EXPORT_SYMBOL(v4l2_video_std_construct);
190
191/* ----------------------------------------------------------------- */
192/* some arrays for pretty-printing debug messages of enum types */
193
194char *v4l2_field_names[] = {
195 [V4L2_FIELD_ANY] = "any",
196 [V4L2_FIELD_NONE] = "none",
197 [V4L2_FIELD_TOP] = "top",
198 [V4L2_FIELD_BOTTOM] = "bottom",
199 [V4L2_FIELD_INTERLACED] = "interlaced",
200 [V4L2_FIELD_SEQ_TB] = "seq-tb",
201 [V4L2_FIELD_SEQ_BT] = "seq-bt",
202 [V4L2_FIELD_ALTERNATE] = "alternate",
203 [V4L2_FIELD_INTERLACED_TB] = "interlaced-tb",
204 [V4L2_FIELD_INTERLACED_BT] = "interlaced-bt",
205};
206EXPORT_SYMBOL(v4l2_field_names);
207
208char *v4l2_type_names[] = {
209 [V4L2_BUF_TYPE_VIDEO_CAPTURE] = "video-cap",
210 [V4L2_BUF_TYPE_VIDEO_OVERLAY] = "video-over",
211 [V4L2_BUF_TYPE_VIDEO_OUTPUT] = "video-out",
212 [V4L2_BUF_TYPE_VBI_CAPTURE] = "vbi-cap",
213 [V4L2_BUF_TYPE_VBI_OUTPUT] = "vbi-out",
214 [V4L2_BUF_TYPE_SLICED_VBI_CAPTURE] = "sliced-vbi-cap",
215 [V4L2_BUF_TYPE_SLICED_VBI_OUTPUT] = "sliced-vbi-out",
216 [V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY] = "video-out-over",
217};
218EXPORT_SYMBOL(v4l2_type_names);
219
220static char *v4l2_memory_names[] = {
221 [V4L2_MEMORY_MMAP] = "mmap",
222 [V4L2_MEMORY_USERPTR] = "userptr",
223 [V4L2_MEMORY_OVERLAY] = "overlay",
224};
225
226#define prt_names(a, arr) ((((a) >= 0) && ((a) < ARRAY_SIZE(arr))) ? \
227 arr[a] : "unknown")
228
229/* ------------------------------------------------------------------ */
230/* debug help functions */
231
232#ifdef CONFIG_VIDEO_V4L1_COMPAT
233static const char *v4l1_ioctls[] = {
234 [_IOC_NR(VIDIOCGCAP)] = "VIDIOCGCAP",
235 [_IOC_NR(VIDIOCGCHAN)] = "VIDIOCGCHAN",
236 [_IOC_NR(VIDIOCSCHAN)] = "VIDIOCSCHAN",
237 [_IOC_NR(VIDIOCGTUNER)] = "VIDIOCGTUNER",
238 [_IOC_NR(VIDIOCSTUNER)] = "VIDIOCSTUNER",
239 [_IOC_NR(VIDIOCGPICT)] = "VIDIOCGPICT",
240 [_IOC_NR(VIDIOCSPICT)] = "VIDIOCSPICT",
241 [_IOC_NR(VIDIOCCAPTURE)] = "VIDIOCCAPTURE",
242 [_IOC_NR(VIDIOCGWIN)] = "VIDIOCGWIN",
243 [_IOC_NR(VIDIOCSWIN)] = "VIDIOCSWIN",
244 [_IOC_NR(VIDIOCGFBUF)] = "VIDIOCGFBUF",
245 [_IOC_NR(VIDIOCSFBUF)] = "VIDIOCSFBUF",
246 [_IOC_NR(VIDIOCKEY)] = "VIDIOCKEY",
247 [_IOC_NR(VIDIOCGFREQ)] = "VIDIOCGFREQ",
248 [_IOC_NR(VIDIOCSFREQ)] = "VIDIOCSFREQ",
249 [_IOC_NR(VIDIOCGAUDIO)] = "VIDIOCGAUDIO",
250 [_IOC_NR(VIDIOCSAUDIO)] = "VIDIOCSAUDIO",
251 [_IOC_NR(VIDIOCSYNC)] = "VIDIOCSYNC",
252 [_IOC_NR(VIDIOCMCAPTURE)] = "VIDIOCMCAPTURE",
253 [_IOC_NR(VIDIOCGMBUF)] = "VIDIOCGMBUF",
254 [_IOC_NR(VIDIOCGUNIT)] = "VIDIOCGUNIT",
255 [_IOC_NR(VIDIOCGCAPTURE)] = "VIDIOCGCAPTURE",
256 [_IOC_NR(VIDIOCSCAPTURE)] = "VIDIOCSCAPTURE",
257 [_IOC_NR(VIDIOCSPLAYMODE)] = "VIDIOCSPLAYMODE",
258 [_IOC_NR(VIDIOCSWRITEMODE)] = "VIDIOCSWRITEMODE",
259 [_IOC_NR(VIDIOCGPLAYINFO)] = "VIDIOCGPLAYINFO",
260 [_IOC_NR(VIDIOCSMICROCODE)] = "VIDIOCSMICROCODE",
261 [_IOC_NR(VIDIOCGVBIFMT)] = "VIDIOCGVBIFMT",
262 [_IOC_NR(VIDIOCSVBIFMT)] = "VIDIOCSVBIFMT"
263};
264#define V4L1_IOCTLS ARRAY_SIZE(v4l1_ioctls)
265#endif
266
267static const char *v4l2_ioctls[] = {
268 [_IOC_NR(VIDIOC_QUERYCAP)] = "VIDIOC_QUERYCAP",
269 [_IOC_NR(VIDIOC_RESERVED)] = "VIDIOC_RESERVED",
270 [_IOC_NR(VIDIOC_ENUM_FMT)] = "VIDIOC_ENUM_FMT",
271 [_IOC_NR(VIDIOC_G_FMT)] = "VIDIOC_G_FMT",
272 [_IOC_NR(VIDIOC_S_FMT)] = "VIDIOC_S_FMT",
273 [_IOC_NR(VIDIOC_REQBUFS)] = "VIDIOC_REQBUFS",
274 [_IOC_NR(VIDIOC_QUERYBUF)] = "VIDIOC_QUERYBUF",
275 [_IOC_NR(VIDIOC_G_FBUF)] = "VIDIOC_G_FBUF",
276 [_IOC_NR(VIDIOC_S_FBUF)] = "VIDIOC_S_FBUF",
277 [_IOC_NR(VIDIOC_OVERLAY)] = "VIDIOC_OVERLAY",
278 [_IOC_NR(VIDIOC_QBUF)] = "VIDIOC_QBUF",
279 [_IOC_NR(VIDIOC_DQBUF)] = "VIDIOC_DQBUF",
280 [_IOC_NR(VIDIOC_STREAMON)] = "VIDIOC_STREAMON",
281 [_IOC_NR(VIDIOC_STREAMOFF)] = "VIDIOC_STREAMOFF",
282 [_IOC_NR(VIDIOC_G_PARM)] = "VIDIOC_G_PARM",
283 [_IOC_NR(VIDIOC_S_PARM)] = "VIDIOC_S_PARM",
284 [_IOC_NR(VIDIOC_G_STD)] = "VIDIOC_G_STD",
285 [_IOC_NR(VIDIOC_S_STD)] = "VIDIOC_S_STD",
286 [_IOC_NR(VIDIOC_ENUMSTD)] = "VIDIOC_ENUMSTD",
287 [_IOC_NR(VIDIOC_ENUMINPUT)] = "VIDIOC_ENUMINPUT",
288 [_IOC_NR(VIDIOC_G_CTRL)] = "VIDIOC_G_CTRL",
289 [_IOC_NR(VIDIOC_S_CTRL)] = "VIDIOC_S_CTRL",
290 [_IOC_NR(VIDIOC_G_TUNER)] = "VIDIOC_G_TUNER",
291 [_IOC_NR(VIDIOC_S_TUNER)] = "VIDIOC_S_TUNER",
292 [_IOC_NR(VIDIOC_G_AUDIO)] = "VIDIOC_G_AUDIO",
293 [_IOC_NR(VIDIOC_S_AUDIO)] = "VIDIOC_S_AUDIO",
294 [_IOC_NR(VIDIOC_QUERYCTRL)] = "VIDIOC_QUERYCTRL",
295 [_IOC_NR(VIDIOC_QUERYMENU)] = "VIDIOC_QUERYMENU",
296 [_IOC_NR(VIDIOC_G_INPUT)] = "VIDIOC_G_INPUT",
297 [_IOC_NR(VIDIOC_S_INPUT)] = "VIDIOC_S_INPUT",
298 [_IOC_NR(VIDIOC_G_OUTPUT)] = "VIDIOC_G_OUTPUT",
299 [_IOC_NR(VIDIOC_S_OUTPUT)] = "VIDIOC_S_OUTPUT",
300 [_IOC_NR(VIDIOC_ENUMOUTPUT)] = "VIDIOC_ENUMOUTPUT",
301 [_IOC_NR(VIDIOC_G_AUDOUT)] = "VIDIOC_G_AUDOUT",
302 [_IOC_NR(VIDIOC_S_AUDOUT)] = "VIDIOC_S_AUDOUT",
303 [_IOC_NR(VIDIOC_G_MODULATOR)] = "VIDIOC_G_MODULATOR",
304 [_IOC_NR(VIDIOC_S_MODULATOR)] = "VIDIOC_S_MODULATOR",
305 [_IOC_NR(VIDIOC_G_FREQUENCY)] = "VIDIOC_G_FREQUENCY",
306 [_IOC_NR(VIDIOC_S_FREQUENCY)] = "VIDIOC_S_FREQUENCY",
307 [_IOC_NR(VIDIOC_CROPCAP)] = "VIDIOC_CROPCAP",
308 [_IOC_NR(VIDIOC_G_CROP)] = "VIDIOC_G_CROP",
309 [_IOC_NR(VIDIOC_S_CROP)] = "VIDIOC_S_CROP",
310 [_IOC_NR(VIDIOC_G_JPEGCOMP)] = "VIDIOC_G_JPEGCOMP",
311 [_IOC_NR(VIDIOC_S_JPEGCOMP)] = "VIDIOC_S_JPEGCOMP",
312 [_IOC_NR(VIDIOC_QUERYSTD)] = "VIDIOC_QUERYSTD",
313 [_IOC_NR(VIDIOC_TRY_FMT)] = "VIDIOC_TRY_FMT",
314 [_IOC_NR(VIDIOC_ENUMAUDIO)] = "VIDIOC_ENUMAUDIO",
315 [_IOC_NR(VIDIOC_ENUMAUDOUT)] = "VIDIOC_ENUMAUDOUT",
316 [_IOC_NR(VIDIOC_G_PRIORITY)] = "VIDIOC_G_PRIORITY",
317 [_IOC_NR(VIDIOC_S_PRIORITY)] = "VIDIOC_S_PRIORITY",
318 [_IOC_NR(VIDIOC_G_SLICED_VBI_CAP)] = "VIDIOC_G_SLICED_VBI_CAP",
319 [_IOC_NR(VIDIOC_LOG_STATUS)] = "VIDIOC_LOG_STATUS",
320 [_IOC_NR(VIDIOC_G_EXT_CTRLS)] = "VIDIOC_G_EXT_CTRLS",
321 [_IOC_NR(VIDIOC_S_EXT_CTRLS)] = "VIDIOC_S_EXT_CTRLS",
322 [_IOC_NR(VIDIOC_TRY_EXT_CTRLS)] = "VIDIOC_TRY_EXT_CTRLS",
323#if 1
324 [_IOC_NR(VIDIOC_ENUM_FRAMESIZES)] = "VIDIOC_ENUM_FRAMESIZES",
325 [_IOC_NR(VIDIOC_ENUM_FRAMEINTERVALS)] = "VIDIOC_ENUM_FRAMEINTERVALS",
326 [_IOC_NR(VIDIOC_G_ENC_INDEX)] = "VIDIOC_G_ENC_INDEX",
327 [_IOC_NR(VIDIOC_ENCODER_CMD)] = "VIDIOC_ENCODER_CMD",
328 [_IOC_NR(VIDIOC_TRY_ENCODER_CMD)] = "VIDIOC_TRY_ENCODER_CMD",
329
330 [_IOC_NR(VIDIOC_DBG_S_REGISTER)] = "VIDIOC_DBG_S_REGISTER",
331 [_IOC_NR(VIDIOC_DBG_G_REGISTER)] = "VIDIOC_DBG_G_REGISTER",
332
333 [_IOC_NR(VIDIOC_G_CHIP_IDENT)] = "VIDIOC_G_CHIP_IDENT",
334#endif
335};
336#define V4L2_IOCTLS ARRAY_SIZE(v4l2_ioctls)
337
338static const char *v4l2_int_ioctls[] = {
339#ifdef CONFIG_VIDEO_V4L1_COMPAT
340 [_IOC_NR(DECODER_GET_CAPABILITIES)] = "DECODER_GET_CAPABILITIES",
341 [_IOC_NR(DECODER_GET_STATUS)] = "DECODER_GET_STATUS",
342 [_IOC_NR(DECODER_SET_NORM)] = "DECODER_SET_NORM",
343 [_IOC_NR(DECODER_SET_INPUT)] = "DECODER_SET_INPUT",
344 [_IOC_NR(DECODER_SET_OUTPUT)] = "DECODER_SET_OUTPUT",
345 [_IOC_NR(DECODER_ENABLE_OUTPUT)] = "DECODER_ENABLE_OUTPUT",
346 [_IOC_NR(DECODER_SET_PICTURE)] = "DECODER_SET_PICTURE",
347 [_IOC_NR(DECODER_SET_GPIO)] = "DECODER_SET_GPIO",
348 [_IOC_NR(DECODER_INIT)] = "DECODER_INIT",
349 [_IOC_NR(DECODER_SET_VBI_BYPASS)] = "DECODER_SET_VBI_BYPASS",
350 [_IOC_NR(DECODER_DUMP)] = "DECODER_DUMP",
351#endif
352 [_IOC_NR(AUDC_SET_RADIO)] = "AUDC_SET_RADIO",
353
354 [_IOC_NR(TUNER_SET_TYPE_ADDR)] = "TUNER_SET_TYPE_ADDR",
355 [_IOC_NR(TUNER_SET_STANDBY)] = "TUNER_SET_STANDBY",
356 [_IOC_NR(TUNER_SET_CONFIG)] = "TUNER_SET_CONFIG",
357
358 [_IOC_NR(VIDIOC_INT_S_TUNER_MODE)] = "VIDIOC_INT_S_TUNER_MODE",
359 [_IOC_NR(VIDIOC_INT_RESET)] = "VIDIOC_INT_RESET",
360 [_IOC_NR(VIDIOC_INT_AUDIO_CLOCK_FREQ)] = "VIDIOC_INT_AUDIO_CLOCK_FREQ",
361 [_IOC_NR(VIDIOC_INT_DECODE_VBI_LINE)] = "VIDIOC_INT_DECODE_VBI_LINE",
362 [_IOC_NR(VIDIOC_INT_S_VBI_DATA)] = "VIDIOC_INT_S_VBI_DATA",
363 [_IOC_NR(VIDIOC_INT_G_VBI_DATA)] = "VIDIOC_INT_G_VBI_DATA",
364 [_IOC_NR(VIDIOC_INT_I2S_CLOCK_FREQ)] = "VIDIOC_INT_I2S_CLOCK_FREQ",
365 [_IOC_NR(VIDIOC_INT_S_STANDBY)] = "VIDIOC_INT_S_STANDBY",
366 [_IOC_NR(VIDIOC_INT_S_AUDIO_ROUTING)] = "VIDIOC_INT_S_AUDIO_ROUTING",
367 [_IOC_NR(VIDIOC_INT_G_AUDIO_ROUTING)] = "VIDIOC_INT_G_AUDIO_ROUTING",
368 [_IOC_NR(VIDIOC_INT_S_VIDEO_ROUTING)] = "VIDIOC_INT_S_VIDEO_ROUTING",
369 [_IOC_NR(VIDIOC_INT_G_VIDEO_ROUTING)] = "VIDIOC_INT_G_VIDEO_ROUTING",
370 [_IOC_NR(VIDIOC_INT_S_CRYSTAL_FREQ)] = "VIDIOC_INT_S_CRYSTAL_FREQ",
371 [_IOC_NR(VIDIOC_INT_INIT)] = "VIDIOC_INT_INIT",
372 [_IOC_NR(VIDIOC_INT_G_STD_OUTPUT)] = "VIDIOC_INT_G_STD_OUTPUT",
373 [_IOC_NR(VIDIOC_INT_S_STD_OUTPUT)] = "VIDIOC_INT_S_STD_OUTPUT",
374};
375#define V4L2_INT_IOCTLS ARRAY_SIZE(v4l2_int_ioctls)
376
377/* Common ioctl debug function. This function can be used by
378 external ioctl messages as well as internal V4L ioctl */
379void v4l_printk_ioctl(unsigned int cmd)
380{
381 char *dir;
382
383 switch (_IOC_DIR(cmd)) {
384 case _IOC_NONE: dir = "--"; break;
385 case _IOC_READ: dir = "r-"; break;
386 case _IOC_WRITE: dir = "-w"; break;
387 case _IOC_READ | _IOC_WRITE: dir = "rw"; break;
388 default: dir = "*ERR*"; break;
389 }
390 switch (_IOC_TYPE(cmd)) {
391 case 'd':
392 printk("v4l2_int ioctl %s, dir=%s (0x%08x)\n",
393 (_IOC_NR(cmd) < V4L2_INT_IOCTLS) ?
394 v4l2_int_ioctls[_IOC_NR(cmd)] : "UNKNOWN", dir, cmd);
395 break;
396#ifdef CONFIG_VIDEO_V4L1_COMPAT
397 case 'v':
398 printk("v4l1 ioctl %s, dir=%s (0x%08x)\n",
399 (_IOC_NR(cmd) < V4L1_IOCTLS) ?
400 v4l1_ioctls[_IOC_NR(cmd)] : "UNKNOWN", dir, cmd);
401 break;
402#endif
403 case 'V':
404 printk("v4l2 ioctl %s, dir=%s (0x%08x)\n",
405 (_IOC_NR(cmd) < V4L2_IOCTLS) ?
406 v4l2_ioctls[_IOC_NR(cmd)] : "UNKNOWN", dir, cmd);
407 break;
408
409 default:
410 printk("unknown ioctl '%c', dir=%s, #%d (0x%08x)\n",
411 _IOC_TYPE(cmd), dir, _IOC_NR(cmd), cmd);
412 }
413}
414EXPORT_SYMBOL(v4l_printk_ioctl);
415
53/* 416/*
54 * sysfs stuff 417 * sysfs stuff
55 */ 418 */
@@ -69,11 +432,13 @@ struct video_device *video_device_alloc(void)
69 vfd = kzalloc(sizeof(*vfd),GFP_KERNEL); 432 vfd = kzalloc(sizeof(*vfd),GFP_KERNEL);
70 return vfd; 433 return vfd;
71} 434}
435EXPORT_SYMBOL(video_device_alloc);
72 436
73void video_device_release(struct video_device *vfd) 437void video_device_release(struct video_device *vfd)
74{ 438{
75 kfree(vfd); 439 kfree(vfd);
76} 440}
441EXPORT_SYMBOL(video_device_release);
77 442
78static void video_release(struct device *cd) 443static void video_release(struct device *cd)
79{ 444{
@@ -110,6 +475,7 @@ struct video_device* video_devdata(struct file *file)
110{ 475{
111 return video_device[iminor(file->f_path.dentry->d_inode)]; 476 return video_device[iminor(file->f_path.dentry->d_inode)];
112} 477}
478EXPORT_SYMBOL(video_devdata);
113 479
114/* 480/*
115 * Open a video device - FIXME: Obsoleted 481 * Open a video device - FIXME: Obsoleted
@@ -278,6 +644,7 @@ out:
278 kfree(mbuf); 644 kfree(mbuf);
279 return err; 645 return err;
280} 646}
647EXPORT_SYMBOL(video_usercopy);
281 648
282/* 649/*
283 * open/release helper functions -- handle exclusive opens 650 * open/release helper functions -- handle exclusive opens
@@ -297,6 +664,7 @@ int video_exclusive_open(struct inode *inode, struct file *file)
297 mutex_unlock(&vfl->lock); 664 mutex_unlock(&vfl->lock);
298 return retval; 665 return retval;
299} 666}
667EXPORT_SYMBOL(video_exclusive_open);
300 668
301int video_exclusive_release(struct inode *inode, struct file *file) 669int video_exclusive_release(struct inode *inode, struct file *file)
302{ 670{
@@ -305,41 +673,7 @@ int video_exclusive_release(struct inode *inode, struct file *file)
305 vfl->users--; 673 vfl->users--;
306 return 0; 674 return 0;
307} 675}
308 676EXPORT_SYMBOL(video_exclusive_release);
309static char *v4l2_memory_names[] = {
310 [V4L2_MEMORY_MMAP] = "mmap",
311 [V4L2_MEMORY_USERPTR] = "userptr",
312 [V4L2_MEMORY_OVERLAY] = "overlay",
313};
314
315
316/* FIXME: Those stuff are replicated also on v4l2-common.c */
317static char *v4l2_type_names_FIXME[] = {
318 [V4L2_BUF_TYPE_VIDEO_CAPTURE] = "video-cap",
319 [V4L2_BUF_TYPE_VIDEO_OVERLAY] = "video-over",
320 [V4L2_BUF_TYPE_VIDEO_OUTPUT] = "video-out",
321 [V4L2_BUF_TYPE_VBI_CAPTURE] = "vbi-cap",
322 [V4L2_BUF_TYPE_VBI_OUTPUT] = "vbi-out",
323 [V4L2_BUF_TYPE_SLICED_VBI_OUTPUT] = "sliced-vbi-out",
324 [V4L2_BUF_TYPE_SLICED_VBI_CAPTURE] = "sliced-vbi-capture",
325 [V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY] = "video-out-over",
326 [V4L2_BUF_TYPE_PRIVATE] = "private",
327};
328
329static char *v4l2_field_names_FIXME[] = {
330 [V4L2_FIELD_ANY] = "any",
331 [V4L2_FIELD_NONE] = "none",
332 [V4L2_FIELD_TOP] = "top",
333 [V4L2_FIELD_BOTTOM] = "bottom",
334 [V4L2_FIELD_INTERLACED] = "interlaced",
335 [V4L2_FIELD_SEQ_TB] = "seq-tb",
336 [V4L2_FIELD_SEQ_BT] = "seq-bt",
337 [V4L2_FIELD_ALTERNATE] = "alternate",
338 [V4L2_FIELD_INTERLACED_TB] = "interlaced-tb",
339 [V4L2_FIELD_INTERLACED_BT] = "interlaced-bt",
340};
341
342#define prt_names(a,arr) (((a)>=0)&&((a)<ARRAY_SIZE(arr)))?arr[a]:"unknown"
343 677
344static void dbgbuf(unsigned int cmd, struct video_device *vfd, 678static void dbgbuf(unsigned int cmd, struct video_device *vfd,
345 struct v4l2_buffer *p) 679 struct v4l2_buffer *p)
@@ -354,10 +688,10 @@ static void dbgbuf(unsigned int cmd, struct video_device *vfd,
354 (int)(p->timestamp.tv_sec%60), 688 (int)(p->timestamp.tv_sec%60),
355 p->timestamp.tv_usec, 689 p->timestamp.tv_usec,
356 p->index, 690 p->index,
357 prt_names(p->type,v4l2_type_names_FIXME), 691 prt_names(p->type, v4l2_type_names),
358 p->bytesused,p->flags, 692 p->bytesused, p->flags,
359 p->field,p->sequence, 693 p->field, p->sequence,
360 prt_names(p->memory,v4l2_memory_names), 694 prt_names(p->memory, v4l2_memory_names),
361 p->m.userptr, p->length); 695 p->m.userptr, p->length);
362 dbgarg2 ("timecode= %02d:%02d:%02d type=%d, " 696 dbgarg2 ("timecode= %02d:%02d:%02d type=%d, "
363 "flags=0x%08d, frames=%d, userbits=0x%08x\n", 697 "flags=0x%08d, frames=%d, userbits=0x%08x\n",
@@ -382,8 +716,8 @@ static inline void v4l_print_pix_fmt (struct video_device *vfd,
382 (fmt->pixelformat >> 8) & 0xff, 716 (fmt->pixelformat >> 8) & 0xff,
383 (fmt->pixelformat >> 16) & 0xff, 717 (fmt->pixelformat >> 16) & 0xff,
384 (fmt->pixelformat >> 24) & 0xff, 718 (fmt->pixelformat >> 24) & 0xff,
385 prt_names(fmt->field,v4l2_field_names_FIXME), 719 prt_names(fmt->field, v4l2_field_names),
386 fmt->bytesperline,fmt->sizeimage,fmt->colorspace); 720 fmt->bytesperline, fmt->sizeimage, fmt->colorspace);
387}; 721};
388 722
389 723
@@ -597,7 +931,7 @@ static int __video_do_ioctl(struct inode *inode, struct file *file,
597 931
598 /* FIXME: Should be one dump per type */ 932 /* FIXME: Should be one dump per type */
599 dbgarg (cmd, "type=%s\n", prt_names(type, 933 dbgarg (cmd, "type=%s\n", prt_names(type,
600 v4l2_type_names_FIXME)); 934 v4l2_type_names));
601 935
602 switch (type) { 936 switch (type) {
603 case V4L2_BUF_TYPE_VIDEO_CAPTURE: 937 case V4L2_BUF_TYPE_VIDEO_CAPTURE:
@@ -650,7 +984,7 @@ static int __video_do_ioctl(struct inode *inode, struct file *file,
650 984
651 /* FIXME: Should be one dump per type */ 985 /* FIXME: Should be one dump per type */
652 dbgarg (cmd, "type=%s\n", prt_names(f->type, 986 dbgarg (cmd, "type=%s\n", prt_names(f->type,
653 v4l2_type_names_FIXME)); 987 v4l2_type_names));
654 988
655 switch (f->type) { 989 switch (f->type) {
656 case V4L2_BUF_TYPE_VIDEO_CAPTURE: 990 case V4L2_BUF_TYPE_VIDEO_CAPTURE:
@@ -702,7 +1036,7 @@ static int __video_do_ioctl(struct inode *inode, struct file *file,
702 1036
703 /* FIXME: Should be one dump per type */ 1037 /* FIXME: Should be one dump per type */
704 dbgarg (cmd, "type=%s\n", prt_names(f->type, 1038 dbgarg (cmd, "type=%s\n", prt_names(f->type,
705 v4l2_type_names_FIXME)); 1039 v4l2_type_names));
706 switch (f->type) { 1040 switch (f->type) {
707 case V4L2_BUF_TYPE_VIDEO_CAPTURE: 1041 case V4L2_BUF_TYPE_VIDEO_CAPTURE:
708 if (vfd->vidioc_try_fmt_cap) 1042 if (vfd->vidioc_try_fmt_cap)
@@ -768,8 +1102,8 @@ static int __video_do_ioctl(struct inode *inode, struct file *file,
768 ret=vfd->vidioc_reqbufs(file, fh, p); 1102 ret=vfd->vidioc_reqbufs(file, fh, p);
769 dbgarg (cmd, "count=%d, type=%s, memory=%s\n", 1103 dbgarg (cmd, "count=%d, type=%s, memory=%s\n",
770 p->count, 1104 p->count,
771 prt_names(p->type,v4l2_type_names_FIXME), 1105 prt_names(p->type, v4l2_type_names),
772 prt_names(p->memory,v4l2_memory_names)); 1106 prt_names(p->memory, v4l2_memory_names));
773 break; 1107 break;
774 } 1108 }
775 case VIDIOC_QUERYBUF: 1109 case VIDIOC_QUERYBUF:
@@ -858,7 +1192,7 @@ static int __video_do_ioctl(struct inode *inode, struct file *file,
858 enum v4l2_buf_type i = *(int *)arg; 1192 enum v4l2_buf_type i = *(int *)arg;
859 if (!vfd->vidioc_streamon) 1193 if (!vfd->vidioc_streamon)
860 break; 1194 break;
861 dbgarg (cmd, "type=%s\n", prt_names(i,v4l2_type_names_FIXME)); 1195 dbgarg(cmd, "type=%s\n", prt_names(i, v4l2_type_names));
862 ret=vfd->vidioc_streamon(file, fh,i); 1196 ret=vfd->vidioc_streamon(file, fh,i);
863 break; 1197 break;
864 } 1198 }
@@ -868,7 +1202,7 @@ static int __video_do_ioctl(struct inode *inode, struct file *file,
868 1202
869 if (!vfd->vidioc_streamoff) 1203 if (!vfd->vidioc_streamoff)
870 break; 1204 break;
871 dbgarg (cmd, "type=%s\n", prt_names(i,v4l2_type_names_FIXME)); 1205 dbgarg(cmd, "type=%s\n", prt_names(i, v4l2_type_names));
872 ret=vfd->vidioc_streamoff(file, fh, i); 1206 ret=vfd->vidioc_streamoff(file, fh, i);
873 break; 1207 break;
874 } 1208 }
@@ -1624,7 +1958,7 @@ out:
1624 kfree(mbuf); 1958 kfree(mbuf);
1625 return err; 1959 return err;
1626} 1960}
1627 1961EXPORT_SYMBOL(video_ioctl2);
1628 1962
1629static const struct file_operations video_fops; 1963static const struct file_operations video_fops;
1630 1964
@@ -1743,6 +2077,7 @@ fail_minor:
1743 mutex_unlock(&videodev_lock); 2077 mutex_unlock(&videodev_lock);
1744 return ret; 2078 return ret;
1745} 2079}
2080EXPORT_SYMBOL(video_register_device);
1746 2081
1747/** 2082/**
1748 * video_unregister_device - unregister a video4linux device 2083 * video_unregister_device - unregister a video4linux device
@@ -1762,6 +2097,7 @@ void video_unregister_device(struct video_device *vfd)
1762 device_unregister(&vfd->class_dev); 2097 device_unregister(&vfd->class_dev);
1763 mutex_unlock(&videodev_lock); 2098 mutex_unlock(&videodev_lock);
1764} 2099}
2100EXPORT_SYMBOL(video_unregister_device);
1765 2101
1766/* 2102/*
1767 * Video fs operations 2103 * Video fs operations
@@ -1806,16 +2142,6 @@ static void __exit videodev_exit(void)
1806module_init(videodev_init) 2142module_init(videodev_init)
1807module_exit(videodev_exit) 2143module_exit(videodev_exit)
1808 2144
1809EXPORT_SYMBOL(video_register_device);
1810EXPORT_SYMBOL(video_unregister_device);
1811EXPORT_SYMBOL(video_devdata);
1812EXPORT_SYMBOL(video_usercopy);
1813EXPORT_SYMBOL(video_exclusive_open);
1814EXPORT_SYMBOL(video_exclusive_release);
1815EXPORT_SYMBOL(video_ioctl2);
1816EXPORT_SYMBOL(video_device_alloc);
1817EXPORT_SYMBOL(video_device_release);
1818
1819MODULE_AUTHOR("Alan Cox, Mauro Carvalho Chehab <mchehab@infradead.org>"); 2145MODULE_AUTHOR("Alan Cox, Mauro Carvalho Chehab <mchehab@infradead.org>");
1820MODULE_DESCRIPTION("Device registrar for Video4Linux drivers v2"); 2146MODULE_DESCRIPTION("Device registrar for Video4Linux drivers v2");
1821MODULE_LICENSE("GPL"); 2147MODULE_LICENSE("GPL");
generated by cgit v1.2.2 (git 2.25.0) at 2025-01-08 21:22:59 -0500