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path: root/drivers/media/video/v4l2-common.c
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Diffstat (limited to 'drivers/media/video/v4l2-common.c')
-rw-r--r--drivers/media/video/v4l2-common.c219
1 files changed, 170 insertions, 49 deletions
diff --git a/drivers/media/video/v4l2-common.c b/drivers/media/video/v4l2-common.c
index 62a7d636ef11..5dbd7c1b362a 100644
--- a/drivers/media/video/v4l2-common.c
+++ b/drivers/media/video/v4l2-common.c
@@ -58,6 +58,8 @@
58#include <asm/pgtable.h> 58#include <asm/pgtable.h>
59#include <asm/io.h> 59#include <asm/io.h>
60#include <asm/div64.h> 60#include <asm/div64.h>
61#include <linux/video_decoder.h>
62#include <media/v4l2-common.h>
61 63
62#ifdef CONFIG_KMOD 64#ifdef CONFIG_KMOD
63#include <linux/kmod.h> 65#include <linux/kmod.h>
@@ -190,55 +192,174 @@ char *v4l2_type_names[] = {
190 [V4L2_BUF_TYPE_VBI_OUTPUT] = "vbi-out", 192 [V4L2_BUF_TYPE_VBI_OUTPUT] = "vbi-out",
191}; 193};
192 194
193char *v4l2_ioctl_names[256] = { 195/* ------------------------------------------------------------------ */
194 [0 ... 255] = "UNKNOWN", 196/* debug help functions */
195 [_IOC_NR(VIDIOC_QUERYCAP)] = "VIDIOC_QUERYCAP", 197
196 [_IOC_NR(VIDIOC_RESERVED)] = "VIDIOC_RESERVED", 198#ifdef HAVE_V4L1
197 [_IOC_NR(VIDIOC_ENUM_FMT)] = "VIDIOC_ENUM_FMT", 199static const char *v4l1_ioctls[] = {
198 [_IOC_NR(VIDIOC_G_FMT)] = "VIDIOC_G_FMT", 200 [_IOC_NR(VIDIOCGCAP)] = "VIDIOCGCAP",
199 [_IOC_NR(VIDIOC_S_FMT)] = "VIDIOC_S_FMT", 201 [_IOC_NR(VIDIOCGCHAN)] = "VIDIOCGCHAN",
200 [_IOC_NR(VIDIOC_REQBUFS)] = "VIDIOC_REQBUFS", 202 [_IOC_NR(VIDIOCSCHAN)] = "VIDIOCSCHAN",
201 [_IOC_NR(VIDIOC_QUERYBUF)] = "VIDIOC_QUERYBUF", 203 [_IOC_NR(VIDIOCGTUNER)] = "VIDIOCGTUNER",
202 [_IOC_NR(VIDIOC_G_FBUF)] = "VIDIOC_G_FBUF", 204 [_IOC_NR(VIDIOCSTUNER)] = "VIDIOCSTUNER",
203 [_IOC_NR(VIDIOC_S_FBUF)] = "VIDIOC_S_FBUF", 205 [_IOC_NR(VIDIOCGPICT)] = "VIDIOCGPICT",
204 [_IOC_NR(VIDIOC_OVERLAY)] = "VIDIOC_OVERLAY", 206 [_IOC_NR(VIDIOCSPICT)] = "VIDIOCSPICT",
205 [_IOC_NR(VIDIOC_QBUF)] = "VIDIOC_QBUF", 207 [_IOC_NR(VIDIOCCAPTURE)] = "VIDIOCCAPTURE",
206 [_IOC_NR(VIDIOC_DQBUF)] = "VIDIOC_DQBUF", 208 [_IOC_NR(VIDIOCGWIN)] = "VIDIOCGWIN",
207 [_IOC_NR(VIDIOC_STREAMON)] = "VIDIOC_STREAMON", 209 [_IOC_NR(VIDIOCSWIN)] = "VIDIOCSWIN",
208 [_IOC_NR(VIDIOC_STREAMOFF)] = "VIDIOC_STREAMOFF", 210 [_IOC_NR(VIDIOCGFBUF)] = "VIDIOCGFBUF",
209 [_IOC_NR(VIDIOC_G_PARM)] = "VIDIOC_G_PARM", 211 [_IOC_NR(VIDIOCSFBUF)] = "VIDIOCSFBUF",
210 [_IOC_NR(VIDIOC_S_PARM)] = "VIDIOC_S_PARM", 212 [_IOC_NR(VIDIOCKEY)] = "VIDIOCKEY",
211 [_IOC_NR(VIDIOC_G_STD)] = "VIDIOC_G_STD", 213 [_IOC_NR(VIDIOCGFREQ)] = "VIDIOCGFREQ",
212 [_IOC_NR(VIDIOC_S_STD)] = "VIDIOC_S_STD", 214 [_IOC_NR(VIDIOCSFREQ)] = "VIDIOCSFREQ",
213 [_IOC_NR(VIDIOC_ENUMSTD)] = "VIDIOC_ENUMSTD", 215 [_IOC_NR(VIDIOCGAUDIO)] = "VIDIOCGAUDIO",
214 [_IOC_NR(VIDIOC_ENUMINPUT)] = "VIDIOC_ENUMINPUT", 216 [_IOC_NR(VIDIOCSAUDIO)] = "VIDIOCSAUDIO",
215 [_IOC_NR(VIDIOC_G_CTRL)] = "VIDIOC_G_CTRL", 217 [_IOC_NR(VIDIOCSYNC)] = "VIDIOCSYNC",
216 [_IOC_NR(VIDIOC_S_CTRL)] = "VIDIOC_S_CTRL", 218 [_IOC_NR(VIDIOCMCAPTURE)] = "VIDIOCMCAPTURE",
217 [_IOC_NR(VIDIOC_G_TUNER)] = "VIDIOC_G_TUNER", 219 [_IOC_NR(VIDIOCGMBUF)] = "VIDIOCGMBUF",
218 [_IOC_NR(VIDIOC_S_TUNER)] = "VIDIOC_S_TUNER", 220 [_IOC_NR(VIDIOCGUNIT)] = "VIDIOCGUNIT",
219 [_IOC_NR(VIDIOC_G_AUDIO)] = "VIDIOC_G_AUDIO", 221 [_IOC_NR(VIDIOCGCAPTURE)] = "VIDIOCGCAPTURE",
220 [_IOC_NR(VIDIOC_S_AUDIO)] = "VIDIOC_S_AUDIO", 222 [_IOC_NR(VIDIOCSCAPTURE)] = "VIDIOCSCAPTURE",
221 [_IOC_NR(VIDIOC_QUERYCTRL)] = "VIDIOC_QUERYCTRL", 223 [_IOC_NR(VIDIOCSPLAYMODE)] = "VIDIOCSPLAYMODE",
222 [_IOC_NR(VIDIOC_QUERYMENU)] = "VIDIOC_QUERYMENU", 224 [_IOC_NR(VIDIOCSWRITEMODE)] = "VIDIOCSWRITEMODE",
223 [_IOC_NR(VIDIOC_G_INPUT)] = "VIDIOC_G_INPUT", 225 [_IOC_NR(VIDIOCGPLAYINFO)] = "VIDIOCGPLAYINFO",
224 [_IOC_NR(VIDIOC_S_INPUT)] = "VIDIOC_S_INPUT", 226 [_IOC_NR(VIDIOCSMICROCODE)] = "VIDIOCSMICROCODE",
225 [_IOC_NR(VIDIOC_G_OUTPUT)] = "VIDIOC_G_OUTPUT", 227 [_IOC_NR(VIDIOCGVBIFMT)] = "VIDIOCGVBIFMT",
226 [_IOC_NR(VIDIOC_S_OUTPUT)] = "VIDIOC_S_OUTPUT", 228 [_IOC_NR(VIDIOCSVBIFMT)] = "VIDIOCSVBIFMT"
227 [_IOC_NR(VIDIOC_ENUMOUTPUT)] = "VIDIOC_ENUMOUTPUT",
228 [_IOC_NR(VIDIOC_G_AUDOUT)] = "VIDIOC_G_AUDOUT",
229 [_IOC_NR(VIDIOC_S_AUDOUT)] = "VIDIOC_S_AUDOUT",
230 [_IOC_NR(VIDIOC_G_MODULATOR)] = "VIDIOC_G_MODULATOR",
231 [_IOC_NR(VIDIOC_S_MODULATOR)] = "VIDIOC_S_MODULATOR",
232 [_IOC_NR(VIDIOC_G_FREQUENCY)] = "VIDIOC_G_FREQUENCY",
233 [_IOC_NR(VIDIOC_S_FREQUENCY)] = "VIDIOC_S_FREQUENCY",
234 [_IOC_NR(VIDIOC_CROPCAP)] = "VIDIOC_CROPCAP",
235 [_IOC_NR(VIDIOC_G_CROP)] = "VIDIOC_G_CROP",
236 [_IOC_NR(VIDIOC_S_CROP)] = "VIDIOC_S_CROP",
237 [_IOC_NR(VIDIOC_G_JPEGCOMP)] = "VIDIOC_G_JPEGCOMP",
238 [_IOC_NR(VIDIOC_S_JPEGCOMP)] = "VIDIOC_S_JPEGCOMP",
239 [_IOC_NR(VIDIOC_QUERYSTD)] = "VIDIOC_QUERYSTD",
240 [_IOC_NR(VIDIOC_TRY_FMT)] = "VIDIOC_TRY_FMT",
241}; 229};
230#define V4L1_IOCTLS ARRAY_SIZE(v4l1_ioctls)
231#endif
232
233static const char *v4l2_ioctls[] = {
234 [_IOC_NR(VIDIOC_QUERYCAP)] = "VIDIOC_QUERYCAP",
235 [_IOC_NR(VIDIOC_RESERVED)] = "VIDIOC_RESERVED",
236 [_IOC_NR(VIDIOC_ENUM_FMT)] = "VIDIOC_ENUM_FMT",
237 [_IOC_NR(VIDIOC_G_FMT)] = "VIDIOC_G_FMT",
238 [_IOC_NR(VIDIOC_S_FMT)] = "VIDIOC_S_FMT",
239 [_IOC_NR(VIDIOC_G_MPEGCOMP)] = "VIDIOC_G_MPEGCOMP",
240 [_IOC_NR(VIDIOC_S_MPEGCOMP)] = "VIDIOC_S_MPEGCOMP",
241 [_IOC_NR(VIDIOC_REQBUFS)] = "VIDIOC_REQBUFS",
242 [_IOC_NR(VIDIOC_QUERYBUF)] = "VIDIOC_QUERYBUF",
243 [_IOC_NR(VIDIOC_G_FBUF)] = "VIDIOC_G_FBUF",
244 [_IOC_NR(VIDIOC_S_FBUF)] = "VIDIOC_S_FBUF",
245 [_IOC_NR(VIDIOC_OVERLAY)] = "VIDIOC_OVERLAY",
246 [_IOC_NR(VIDIOC_QBUF)] = "VIDIOC_QBUF",
247 [_IOC_NR(VIDIOC_DQBUF)] = "VIDIOC_DQBUF",
248 [_IOC_NR(VIDIOC_STREAMON)] = "VIDIOC_STREAMON",
249 [_IOC_NR(VIDIOC_STREAMOFF)] = "VIDIOC_STREAMOFF",
250 [_IOC_NR(VIDIOC_G_PARM)] = "VIDIOC_G_PARM",
251 [_IOC_NR(VIDIOC_S_PARM)] = "VIDIOC_S_PARM",
252 [_IOC_NR(VIDIOC_G_STD)] = "VIDIOC_G_STD",
253 [_IOC_NR(VIDIOC_S_STD)] = "VIDIOC_S_STD",
254 [_IOC_NR(VIDIOC_ENUMSTD)] = "VIDIOC_ENUMSTD",
255 [_IOC_NR(VIDIOC_ENUMINPUT)] = "VIDIOC_ENUMINPUT",
256 [_IOC_NR(VIDIOC_G_CTRL)] = "VIDIOC_G_CTRL",
257 [_IOC_NR(VIDIOC_S_CTRL)] = "VIDIOC_S_CTRL",
258 [_IOC_NR(VIDIOC_G_TUNER)] = "VIDIOC_G_TUNER",
259 [_IOC_NR(VIDIOC_S_TUNER)] = "VIDIOC_S_TUNER",
260 [_IOC_NR(VIDIOC_G_AUDIO)] = "VIDIOC_G_AUDIO",
261 [_IOC_NR(VIDIOC_S_AUDIO)] = "VIDIOC_S_AUDIO",
262 [_IOC_NR(VIDIOC_QUERYCTRL)] = "VIDIOC_QUERYCTRL",
263 [_IOC_NR(VIDIOC_QUERYMENU)] = "VIDIOC_QUERYMENU",
264 [_IOC_NR(VIDIOC_G_INPUT)] = "VIDIOC_G_INPUT",
265 [_IOC_NR(VIDIOC_S_INPUT)] = "VIDIOC_S_INPUT",
266 [_IOC_NR(VIDIOC_G_OUTPUT)] = "VIDIOC_G_OUTPUT",
267 [_IOC_NR(VIDIOC_S_OUTPUT)] = "VIDIOC_S_OUTPUT",
268 [_IOC_NR(VIDIOC_ENUMOUTPUT)] = "VIDIOC_ENUMOUTPUT",
269 [_IOC_NR(VIDIOC_G_AUDOUT)] = "VIDIOC_G_AUDOUT",
270 [_IOC_NR(VIDIOC_S_AUDOUT)] = "VIDIOC_S_AUDOUT",
271 [_IOC_NR(VIDIOC_G_MODULATOR)] = "VIDIOC_G_MODULATOR",
272 [_IOC_NR(VIDIOC_S_MODULATOR)] = "VIDIOC_S_MODULATOR",
273 [_IOC_NR(VIDIOC_G_FREQUENCY)] = "VIDIOC_G_FREQUENCY",
274 [_IOC_NR(VIDIOC_S_FREQUENCY)] = "VIDIOC_S_FREQUENCY",
275 [_IOC_NR(VIDIOC_CROPCAP)] = "VIDIOC_CROPCAP",
276 [_IOC_NR(VIDIOC_G_CROP)] = "VIDIOC_G_CROP",
277 [_IOC_NR(VIDIOC_S_CROP)] = "VIDIOC_S_CROP",
278 [_IOC_NR(VIDIOC_G_JPEGCOMP)] = "VIDIOC_G_JPEGCOMP",
279 [_IOC_NR(VIDIOC_S_JPEGCOMP)] = "VIDIOC_S_JPEGCOMP",
280 [_IOC_NR(VIDIOC_QUERYSTD)] = "VIDIOC_QUERYSTD",
281 [_IOC_NR(VIDIOC_TRY_FMT)] = "VIDIOC_TRY_FMT",
282 [_IOC_NR(VIDIOC_ENUMAUDIO)] = "VIDIOC_ENUMAUDIO",
283 [_IOC_NR(VIDIOC_ENUMAUDOUT)] = "VIDIOC_ENUMAUDOUT",
284 [_IOC_NR(VIDIOC_G_PRIORITY)] = "VIDIOC_G_PRIORITY",
285 [_IOC_NR(VIDIOC_S_PRIORITY)] = "VIDIOC_S_PRIORITY",
286#if 1
287 [_IOC_NR(VIDIOC_G_SLICED_VBI_CAP)] = "VIDIOC_G_SLICED_VBI_CAP",
288#endif
289 [_IOC_NR(VIDIOC_LOG_STATUS)] = "VIDIOC_LOG_STATUS"
290};
291#define V4L2_IOCTLS ARRAY_SIZE(v4l2_ioctls)
292
293static const char *v4l2_int_ioctls[] = {
294#ifdef HAVE_VIDEO_DECODER
295 [_IOC_NR(DECODER_GET_CAPABILITIES)] = "DECODER_GET_CAPABILITIES",
296 [_IOC_NR(DECODER_GET_STATUS)] = "DECODER_GET_STATUS",
297 [_IOC_NR(DECODER_SET_NORM)] = "DECODER_SET_NORM",
298 [_IOC_NR(DECODER_SET_INPUT)] = "DECODER_SET_INPUT",
299 [_IOC_NR(DECODER_SET_OUTPUT)] = "DECODER_SET_OUTPUT",
300 [_IOC_NR(DECODER_ENABLE_OUTPUT)] = "DECODER_ENABLE_OUTPUT",
301 [_IOC_NR(DECODER_SET_PICTURE)] = "DECODER_SET_PICTURE",
302 [_IOC_NR(DECODER_SET_GPIO)] = "DECODER_SET_GPIO",
303 [_IOC_NR(DECODER_INIT)] = "DECODER_INIT",
304 [_IOC_NR(DECODER_SET_VBI_BYPASS)] = "DECODER_SET_VBI_BYPASS",
305 [_IOC_NR(DECODER_DUMP)] = "DECODER_DUMP",
306#endif
307 [_IOC_NR(AUDC_SET_RADIO)] = "AUDC_SET_RADIO",
308 [_IOC_NR(AUDC_SET_INPUT)] = "AUDC_SET_INPUT",
309
310 [_IOC_NR(TUNER_SET_TYPE_ADDR)] = "TUNER_SET_TYPE_ADDR",
311 [_IOC_NR(TUNER_SET_STANDBY)] = "TUNER_SET_STANDBY",
312 [_IOC_NR(TDA9887_SET_CONFIG)] = "TDA9887_SET_CONFIG",
313
314 [_IOC_NR(VIDIOC_INT_S_REGISTER)] = "VIDIOC_INT_S_REGISTER",
315 [_IOC_NR(VIDIOC_INT_G_REGISTER)] = "VIDIOC_INT_G_REGISTER",
316 [_IOC_NR(VIDIOC_INT_RESET)] = "VIDIOC_INT_RESET",
317 [_IOC_NR(VIDIOC_INT_AUDIO_CLOCK_FREQ)] = "VIDIOC_INT_AUDIO_CLOCK_FREQ",
318 [_IOC_NR(VIDIOC_INT_DECODE_VBI_LINE)] = "VIDIOC_INT_DECODE_VBI_LINE",
319 [_IOC_NR(VIDIOC_INT_S_VBI_DATA)] = "VIDIOC_INT_S_VBI_DATA",
320 [_IOC_NR(VIDIOC_INT_G_VBI_DATA)] = "VIDIOC_INT_G_VBI_DATA",
321 [_IOC_NR(VIDIOC_INT_G_CHIP_IDENT)] = "VIDIOC_INT_G_CHIP_IDENT",
322 [_IOC_NR(VIDIOC_INT_I2S_CLOCK_FREQ)] = "VIDIOC_INT_I2S_CLOCK_FREQ"
323};
324#define V4L2_INT_IOCTLS ARRAY_SIZE(v4l2_int_ioctls)
325
326/* Common ioctl debug function. This function can be used by
327 external ioctl messages as well as internal V4L ioctl */
328void v4l_printk_ioctl(unsigned int cmd)
329{
330 char *dir;
331
332 switch (_IOC_DIR(cmd)) {
333 case _IOC_NONE: dir = "--"; break;
334 case _IOC_READ: dir = "r-"; break;
335 case _IOC_WRITE: dir = "-w"; break;
336 case _IOC_READ | _IOC_WRITE: dir = "rw"; break;
337 default: dir = "*ERR*"; break;
338 }
339 switch (_IOC_TYPE(cmd)) {
340 case 'd':
341 printk("v4l2_int ioctl %s, dir=%s (0x%08x)\n",
342 (_IOC_NR(cmd) < V4L2_INT_IOCTLS) ?
343 v4l2_int_ioctls[_IOC_NR(cmd)] : "UNKNOWN", dir, cmd);
344 break;
345#ifdef HAVE_V4L1
346 case 'v':
347 printk("v4l1 ioctl %s, dir=%s (0x%08x)\n",
348 (_IOC_NR(cmd) < V4L1_IOCTLS) ?
349 v4l1_ioctls[_IOC_NR(cmd)] : "UNKNOWN", dir, cmd);
350 break;
351#endif
352 case 'V':
353 printk("v4l2 ioctl %s, dir=%s (0x%08x)\n",
354 (_IOC_NR(cmd) < V4L2_IOCTLS) ?
355 v4l2_ioctls[_IOC_NR(cmd)] : "UNKNOWN", dir, cmd);
356 break;
357
358 default:
359 printk("unknown ioctl '%c', dir=%s, #%d (0x%08x)\n",
360 _IOC_TYPE(cmd), dir, _IOC_NR(cmd), cmd);
361 }
362}
242 363
243/* ----------------------------------------------------------------- */ 364/* ----------------------------------------------------------------- */
244 365
@@ -253,7 +374,7 @@ EXPORT_SYMBOL(v4l2_prio_check);
253 374
254EXPORT_SYMBOL(v4l2_field_names); 375EXPORT_SYMBOL(v4l2_field_names);
255EXPORT_SYMBOL(v4l2_type_names); 376EXPORT_SYMBOL(v4l2_type_names);
256EXPORT_SYMBOL(v4l2_ioctl_names); 377EXPORT_SYMBOL(v4l_printk_ioctl);
257 378
258/* 379/*
259 * Local variables: 380 * Local variables:
generated by cgit v1.2.2 (git 2.25.0) at 2024-11-06 13:39:49 -0500