blob: ec74667c5c83af13a9581b8204d6c2755eb12ca9
1 | #ifndef __CAMERA_HW__ |
2 | #define __CAMERA_HW__ |
3 | |
4 | //#define LOG_NDEBUG 0 |
5 | #define LOG_TAG "Camera_hw" |
6 | |
7 | #include <errno.h> |
8 | #include "camera_hw.h" |
9 | |
10 | #ifdef __cplusplus |
11 | //extern "C" { |
12 | #endif |
13 | static int set_rotate_value(int camera_fd, int value) |
14 | { |
15 | int ret = 0; |
16 | struct v4l2_control ctl; |
17 | if(camera_fd<0) |
18 | return -1; |
19 | if((value!=0)&&(value!=90)&&(value!=180)&&(value!=270)){ |
20 | CAMHAL_LOGDB("Set rotate value invalid: %d.", value); |
21 | return -1; |
22 | } |
23 | memset( &ctl, 0, sizeof(ctl)); |
24 | ctl.value=value; |
25 | ctl.id = V4L2_CID_ROTATE; |
26 | ALOGD("set_rotate_value:: id =%x , value=%d",ctl.id,ctl.value); |
27 | ret = ioctl(camera_fd, VIDIOC_S_CTRL, &ctl); |
28 | if(ret<0){ |
29 | CAMHAL_LOGDB("Set rotate value fail: %s,errno=%d. ret=%d", strerror(errno),errno,ret); |
30 | } |
31 | return ret ; |
32 | } |
33 | |
34 | void set_device_status(struct VideoInfo *vinfo) |
35 | { |
36 | vinfo->dev_status = -1; |
37 | } |
38 | |
39 | int get_device_status(struct VideoInfo *vinfo) |
40 | { |
41 | return vinfo->dev_status; |
42 | } |
43 | |
44 | int camera_open(struct VideoInfo *cam_dev) |
45 | { |
46 | char dev_name[128]; |
47 | int ret; |
48 | |
49 | sprintf(dev_name, "%s%d", "/dev/video", cam_dev->idx); |
50 | cam_dev->fd = open(dev_name, O_RDWR | O_NONBLOCK); |
51 | //cam_dev->fd = open("/dev/video0", O_RDWR | O_NONBLOCK); |
52 | if (cam_dev->fd < 0){ |
53 | DBG_LOGB("open %s failed, errno=%d\n", dev_name, errno); |
54 | return -ENOTTY; |
55 | } |
56 | |
57 | ret = ioctl(cam_dev->fd, VIDIOC_QUERYCAP, &cam_dev->cap); |
58 | if (ret < 0) { |
59 | DBG_LOGB("VIDIOC_QUERYCAP, errno=%d", errno); |
60 | } |
61 | |
62 | if (!(cam_dev->cap.capabilities & V4L2_CAP_VIDEO_CAPTURE)) { |
63 | DBG_LOGB( "%s is not video capture device\n", |
64 | dev_name); |
65 | } |
66 | |
67 | if (!(cam_dev->cap.capabilities & V4L2_CAP_STREAMING)) { |
68 | DBG_LOGB( "video%d does not support streaming i/o\n", |
69 | cam_dev->idx); |
70 | } |
71 | |
72 | return ret; |
73 | } |
74 | |
75 | int setBuffersFormat(struct VideoInfo *cam_dev) |
76 | { |
77 | int ret = 0; |
78 | if ((cam_dev->preview.format.fmt.pix.width != 0) && (cam_dev->preview.format.fmt.pix.height != 0)) { |
79 | int pixelformat = cam_dev->preview.format.fmt.pix.pixelformat; |
80 | |
81 | ret = ioctl(cam_dev->fd, VIDIOC_S_FMT, &cam_dev->preview.format); |
82 | if (ret < 0) { |
83 | DBG_LOGB("Open: VIDIOC_S_FMT Failed: %s, ret=%d\n", strerror(errno), ret); |
84 | } |
85 | |
86 | CAMHAL_LOGIB("Width * Height %d x %d expect pixelfmt:%.4s, get:%.4s\n", |
87 | cam_dev->preview.format.fmt.pix.width, |
88 | cam_dev->preview.format.fmt.pix.height, |
89 | (char*)&pixelformat, |
90 | (char*)&cam_dev->preview.format.fmt.pix.pixelformat); |
91 | } |
92 | return ret; |
93 | } |
94 | |
95 | int start_capturing(struct VideoInfo *vinfo) |
96 | { |
97 | int ret = 0; |
98 | int i; |
99 | enum v4l2_buf_type type; |
100 | struct v4l2_buffer buf; |
101 | |
102 | if (vinfo->isStreaming) { |
103 | DBG_LOGA("already stream on\n"); |
104 | } |
105 | CLEAR(vinfo->preview.rb); |
106 | |
107 | vinfo->preview.rb.count = 6; |
108 | vinfo->preview.rb.type = V4L2_BUF_TYPE_VIDEO_CAPTURE; |
109 | //TODO DMABUF & ION |
110 | vinfo->preview.rb.memory = V4L2_MEMORY_MMAP; |
111 | |
112 | ret = ioctl(vinfo->fd, VIDIOC_REQBUFS, &vinfo->preview.rb); |
113 | if (ret < 0) { |
114 | DBG_LOGB("camera idx:%d does not support " |
115 | "memory mapping, errno=%d\n", vinfo->idx, errno); |
116 | } |
117 | |
118 | if (vinfo->preview.rb.count < 2) { |
119 | DBG_LOGB( "Insufficient buffer memory on /dev/video%d, errno=%d\n", |
120 | vinfo->idx, errno); |
121 | return -EINVAL; |
122 | } |
123 | |
124 | for (i = 0; i < (int)vinfo->preview.rb.count; ++i) { |
125 | |
126 | CLEAR(vinfo->preview.buf); |
127 | |
128 | vinfo->preview.buf.type = V4L2_BUF_TYPE_VIDEO_CAPTURE; |
129 | vinfo->preview.buf.memory = V4L2_MEMORY_MMAP; |
130 | vinfo->preview.buf.index = i; |
131 | |
132 | if (ioctl(vinfo->fd, VIDIOC_QUERYBUF, &vinfo->preview.buf) < 0) { |
133 | DBG_LOGB("VIDIOC_QUERYBUF, errno=%d", errno); |
134 | } |
135 | /*pluge usb camera when preview, vinfo->preview.buf.length value will equal to 0, so save this value*/ |
136 | vinfo->tempbuflen = vinfo->preview.buf.length; |
137 | vinfo->mem[i] = mmap(NULL /* start anywhere */, |
138 | vinfo->preview.buf.length, |
139 | PROT_READ | PROT_WRITE /* required */, |
140 | MAP_SHARED /* recommended */, |
141 | vinfo->fd, |
142 | vinfo->preview.buf.m.offset); |
143 | |
144 | if (MAP_FAILED == vinfo->mem[i]) { |
145 | DBG_LOGB("mmap failed, errno=%d\n", errno); |
146 | } |
147 | } |
148 | //////////////////////////////// |
149 | for (i = 0; i < (int)vinfo->preview.rb.count; ++i) { |
150 | |
151 | CLEAR(buf); |
152 | buf.type = V4L2_BUF_TYPE_VIDEO_CAPTURE; |
153 | buf.memory = V4L2_MEMORY_MMAP; |
154 | buf.index = i; |
155 | |
156 | if (ioctl(vinfo->fd, VIDIOC_QBUF, &buf) < 0) |
157 | DBG_LOGB("VIDIOC_QBUF failed, errno=%d\n", errno); |
158 | } |
159 | |
160 | type = V4L2_BUF_TYPE_VIDEO_CAPTURE; |
161 | if (ioctl(vinfo->fd, VIDIOC_STREAMON, &type) < 0) |
162 | DBG_LOGB("VIDIOC_STREAMON, errno=%d\n", errno); |
163 | |
164 | vinfo->isStreaming = true; |
165 | return 0; |
166 | } |
167 | |
168 | int stop_capturing(struct VideoInfo *vinfo) |
169 | { |
170 | enum v4l2_buf_type type; |
171 | int res = 0; |
172 | int i; |
173 | |
174 | if (!vinfo->isStreaming) |
175 | return -1; |
176 | |
177 | type = V4L2_BUF_TYPE_VIDEO_CAPTURE; |
178 | if (ioctl(vinfo->fd, VIDIOC_STREAMOFF, &type) < 0) { |
179 | DBG_LOGB("VIDIOC_STREAMOFF, errno=%d", errno); |
180 | res = -1; |
181 | } |
182 | |
183 | for (i = 0; i < (int)vinfo->preview.rb.count; ++i) { |
184 | if (munmap(vinfo->mem[i], vinfo->preview.buf.length) < 0) { |
185 | DBG_LOGB("munmap failed errno=%d", errno); |
186 | res = -1; |
187 | } |
188 | } |
189 | |
190 | vinfo->isStreaming = false; |
191 | return res; |
192 | } |
193 | |
194 | int releasebuf_and_stop_capturing(struct VideoInfo *vinfo) |
195 | { |
196 | enum v4l2_buf_type type; |
197 | int res = 0 ,ret; |
198 | int i; |
199 | |
200 | if (!vinfo->isStreaming) |
201 | return -1; |
202 | |
203 | type = V4L2_BUF_TYPE_VIDEO_CAPTURE; |
204 | if (ioctl(vinfo->fd, VIDIOC_STREAMOFF, &type) < 0) { |
205 | DBG_LOGB("VIDIOC_STREAMOFF, errno=%d", errno); |
206 | res = -1; |
207 | } |
208 | if (vinfo->dev_status == -1) { |
209 | vinfo->preview.buf.length = vinfo->tempbuflen; |
210 | } |
211 | for (i = 0; i < (int)vinfo->preview.rb.count; ++i) { |
212 | if (munmap(vinfo->mem[i], vinfo->preview.buf.length) < 0) { |
213 | DBG_LOGB("munmap failed errno=%d", errno); |
214 | res = -1; |
215 | } |
216 | } |
217 | vinfo->isStreaming = false; |
218 | |
219 | vinfo->preview.format.type = V4L2_BUF_TYPE_VIDEO_CAPTURE; |
220 | vinfo->preview.rb.memory = V4L2_MEMORY_MMAP; |
221 | vinfo->preview.rb.count = 0; |
222 | |
223 | ret = ioctl(vinfo->fd, VIDIOC_REQBUFS, &vinfo->preview.rb); |
224 | if (ret < 0) { |
225 | DBG_LOGB("VIDIOC_REQBUFS failed: %s", strerror(errno)); |
226 | //return ret; |
227 | }else{ |
228 | DBG_LOGA("VIDIOC_REQBUFS delete buffer success\n"); |
229 | } |
230 | return res; |
231 | } |
232 | |
233 | |
234 | uintptr_t get_frame_phys(struct VideoInfo *vinfo) |
235 | { |
236 | CLEAR(vinfo->preview.buf); |
237 | |
238 | vinfo->preview.buf.type = V4L2_BUF_TYPE_VIDEO_CAPTURE; |
239 | vinfo->preview.buf.memory = V4L2_MEMORY_MMAP; |
240 | |
241 | if (ioctl(vinfo->fd, VIDIOC_DQBUF, &vinfo->preview.buf) < 0) { |
242 | switch (errno) { |
243 | case EAGAIN: |
244 | return 0; |
245 | |
246 | case EIO: |
247 | /* Could ignore EIO, see spec. */ |
248 | |
249 | /* fall through */ |
250 | |
251 | default: |
252 | DBG_LOGB("VIDIOC_DQBUF failed, errno=%d\n", errno); |
253 | exit(1); |
254 | } |
255 | DBG_LOGB("VIDIOC_DQBUF failed, errno=%d\n", errno); |
256 | } |
257 | |
258 | return (uintptr_t)vinfo->preview.buf.m.userptr; |
259 | } |
260 | |
261 | void *get_frame(struct VideoInfo *vinfo) |
262 | { |
263 | CLEAR(vinfo->preview.buf); |
264 | |
265 | vinfo->preview.buf.type = V4L2_BUF_TYPE_VIDEO_CAPTURE; |
266 | vinfo->preview.buf.memory = V4L2_MEMORY_MMAP; |
267 | |
268 | if (ioctl(vinfo->fd, VIDIOC_DQBUF, &vinfo->preview.buf) < 0) { |
269 | switch (errno) { |
270 | case EAGAIN: |
271 | return NULL; |
272 | |
273 | case EIO: |
274 | /* Could ignore EIO, see spec. */ |
275 | |
276 | /* fall through */ |
277 | |
278 | default: |
279 | CAMHAL_LOGDB("VIDIOC_DQBUF failed, errno=%d\n", errno); //CAMHAL_LOGDB |
280 | //exit(1); /*here will generate crash, so delete. when ocour error, should break while() loop*/ |
281 | set_device_status(vinfo); |
282 | return NULL; |
283 | } |
284 | } |
285 | //DBG_LOGA("get frame\n"); |
286 | return vinfo->mem[vinfo->preview.buf.index]; |
287 | } |
288 | |
289 | int putback_frame(struct VideoInfo *vinfo) |
290 | { |
291 | if (vinfo->dev_status == -1) |
292 | return 0; |
293 | |
294 | if (ioctl(vinfo->fd, VIDIOC_QBUF, &vinfo->preview.buf) < 0) |
295 | DBG_LOGB("QBUF failed error=%d\n", errno); |
296 | |
297 | return 0; |
298 | } |
299 | |
300 | int putback_picture_frame(struct VideoInfo *vinfo) |
301 | { |
302 | |
303 | if (ioctl(vinfo->fd, VIDIOC_QBUF, &vinfo->picture.buf) < 0) |
304 | DBG_LOGB("QBUF failed error=%d\n", errno); |
305 | |
306 | return 0; |
307 | } |
308 | |
309 | int start_picture(struct VideoInfo *vinfo, int rotate) |
310 | { |
311 | int ret = 0; |
312 | int i; |
313 | enum v4l2_buf_type type; |
314 | struct v4l2_buffer buf; |
315 | bool usbcamera = false; |
316 | |
317 | CLEAR(vinfo->picture.rb); |
318 | |
319 | //step 1 : ioctl VIDIOC_S_FMT |
320 | ret = ioctl(vinfo->fd, VIDIOC_S_FMT, &vinfo->picture.format); |
321 | if (ret < 0) { |
322 | DBG_LOGB("Open: VIDIOC_S_FMT Failed: %s, ret=%d\n", strerror(errno), ret); |
323 | } |
324 | |
325 | //step 2 : request buffer |
326 | vinfo->picture.rb.count = 1; |
327 | vinfo->picture.rb.type = V4L2_BUF_TYPE_VIDEO_CAPTURE; |
328 | //TODO DMABUF & ION |
329 | vinfo->picture.rb.memory = V4L2_MEMORY_MMAP; |
330 | |
331 | ret = ioctl(vinfo->fd, VIDIOC_REQBUFS, &vinfo->picture.rb); |
332 | if (ret < 0) { |
333 | DBG_LOGB("camera idx:%d does not support " |
334 | "memory mapping, errno=%d\n", vinfo->idx, errno); |
335 | } |
336 | |
337 | if (vinfo->picture.rb.count < 1) { |
338 | DBG_LOGB( "Insufficient buffer memory on /dev/video%d, errno=%d\n", |
339 | vinfo->idx, errno); |
340 | return -EINVAL; |
341 | } |
342 | |
343 | //step 3: mmap buffer |
344 | for (i = 0; i < (int)vinfo->picture.rb.count; ++i) { |
345 | |
346 | CLEAR(vinfo->picture.buf); |
347 | |
348 | vinfo->picture.buf.type = V4L2_BUF_TYPE_VIDEO_CAPTURE; |
349 | vinfo->picture.buf.memory = V4L2_MEMORY_MMAP; |
350 | vinfo->picture.buf.index = i; |
351 | |
352 | if (ioctl(vinfo->fd, VIDIOC_QUERYBUF, &vinfo->picture.buf) < 0) { |
353 | DBG_LOGB("VIDIOC_QUERYBUF, errno=%d", errno); |
354 | } |
355 | vinfo->mem_pic[i] = mmap(NULL /* start anywhere */, |
356 | vinfo->picture.buf.length, |
357 | PROT_READ | PROT_WRITE /* required */, |
358 | MAP_SHARED /* recommended */, |
359 | vinfo->fd, |
360 | vinfo->picture.buf.m.offset); |
361 | |
362 | if (MAP_FAILED == vinfo->mem_pic[i]) { |
363 | DBG_LOGB("mmap failed, errno=%d\n", errno); |
364 | } |
365 | } |
366 | |
367 | //step 4 : QBUF |
368 | //////////////////////////////// |
369 | for (i = 0; i < (int)vinfo->picture.rb.count; ++i) { |
370 | |
371 | CLEAR(buf); |
372 | buf.type = V4L2_BUF_TYPE_VIDEO_CAPTURE; |
373 | buf.memory = V4L2_MEMORY_MMAP; |
374 | buf.index = i; |
375 | |
376 | if (ioctl(vinfo->fd, VIDIOC_QBUF, &buf) < 0) |
377 | DBG_LOGB("VIDIOC_QBUF failed, errno=%d\n", errno); |
378 | } |
379 | |
380 | if (vinfo->isPicture) { |
381 | DBG_LOGA("already stream on\n"); |
382 | } |
383 | |
384 | if (strstr((const char *)vinfo->cap.driver, "uvcvideo")) { |
385 | usbcamera = true; |
386 | } |
387 | if (!usbcamera) { |
388 | set_rotate_value(vinfo->fd,rotate); |
389 | } |
390 | //step 5: Stream ON |
391 | type = V4L2_BUF_TYPE_VIDEO_CAPTURE; |
392 | if (ioctl(vinfo->fd, VIDIOC_STREAMON, &type) < 0) |
393 | DBG_LOGB("VIDIOC_STREAMON, errno=%d\n", errno); |
394 | vinfo->isPicture = true; |
395 | |
396 | return 0; |
397 | } |
398 | |
399 | void *get_picture(struct VideoInfo *vinfo) |
400 | { |
401 | CLEAR(vinfo->picture.buf); |
402 | |
403 | vinfo->picture.buf.type = V4L2_BUF_TYPE_VIDEO_CAPTURE; |
404 | vinfo->picture.buf.memory = V4L2_MEMORY_MMAP; |
405 | |
406 | if (ioctl(vinfo->fd, VIDIOC_DQBUF, &vinfo->picture.buf) < 0) { |
407 | switch (errno) { |
408 | case EAGAIN: |
409 | return NULL; |
410 | case EIO: |
411 | /* Could ignore EIO, see spec. */ |
412 | /* fall through */ |
413 | default: |
414 | DBG_LOGB("VIDIOC_DQBUF failed, errno=%d\n", errno); |
415 | exit(1); |
416 | } |
417 | } |
418 | DBG_LOGA("get picture\n"); |
419 | return vinfo->mem_pic[vinfo->picture.buf.index]; |
420 | } |
421 | |
422 | void stop_picture(struct VideoInfo *vinfo) |
423 | { |
424 | enum v4l2_buf_type type; |
425 | struct v4l2_buffer buf; |
426 | int i; |
427 | |
428 | if (!vinfo->isPicture) |
429 | return ; |
430 | |
431 | //QBUF |
432 | for (i = 0; i < (int)vinfo->picture.rb.count; ++i) { |
433 | CLEAR(buf); |
434 | buf.type = V4L2_BUF_TYPE_VIDEO_CAPTURE; |
435 | buf.memory = V4L2_MEMORY_MMAP; |
436 | buf.index = i; |
437 | if (ioctl(vinfo->fd, VIDIOC_QBUF, &buf) < 0) |
438 | DBG_LOGB("VIDIOC_QBUF failed, errno=%d\n", errno); |
439 | } |
440 | |
441 | //stream off and unmap buffer |
442 | type = V4L2_BUF_TYPE_VIDEO_CAPTURE; |
443 | if (ioctl(vinfo->fd, VIDIOC_STREAMOFF, &type) < 0) |
444 | DBG_LOGB("VIDIOC_STREAMOFF, errno=%d", errno); |
445 | |
446 | for (i = 0; i < (int)vinfo->picture.rb.count; i++) |
447 | { |
448 | if (munmap(vinfo->mem_pic[i], vinfo->picture.buf.length) < 0) |
449 | DBG_LOGB("munmap failed errno=%d", errno); |
450 | } |
451 | |
452 | set_rotate_value(vinfo->fd,0); |
453 | vinfo->isPicture = false; |
454 | setBuffersFormat(vinfo); |
455 | start_capturing(vinfo); |
456 | } |
457 | |
458 | void releasebuf_and_stop_picture(struct VideoInfo *vinfo) |
459 | { |
460 | enum v4l2_buf_type type; |
461 | struct v4l2_buffer buf; |
462 | int i,ret; |
463 | |
464 | if (!vinfo->isPicture) |
465 | return ; |
466 | |
467 | //QBUF |
468 | for (i = 0; i < (int)vinfo->picture.rb.count; ++i) { |
469 | CLEAR(buf); |
470 | buf.type = V4L2_BUF_TYPE_VIDEO_CAPTURE; |
471 | buf.memory = V4L2_MEMORY_MMAP; |
472 | buf.index = i; |
473 | if (ioctl(vinfo->fd, VIDIOC_QBUF, &buf) < 0) |
474 | DBG_LOGB("VIDIOC_QBUF failed, errno=%d\n", errno); |
475 | } |
476 | |
477 | //stream off and unmap buffer |
478 | type = V4L2_BUF_TYPE_VIDEO_CAPTURE; |
479 | if (ioctl(vinfo->fd, VIDIOC_STREAMOFF, &type) < 0) |
480 | DBG_LOGB("VIDIOC_STREAMOFF, errno=%d", errno); |
481 | |
482 | for (i = 0; i < (int)vinfo->picture.rb.count; i++) |
483 | { |
484 | if (munmap(vinfo->mem_pic[i], vinfo->picture.buf.length) < 0) |
485 | DBG_LOGB("munmap failed errno=%d", errno); |
486 | } |
487 | |
488 | vinfo->isPicture = false; |
489 | |
490 | vinfo->picture.format.type = V4L2_BUF_TYPE_VIDEO_CAPTURE; |
491 | vinfo->picture.rb.memory = V4L2_MEMORY_MMAP; |
492 | vinfo->picture.rb.count = 0; |
493 | ret = ioctl(vinfo->fd, VIDIOC_REQBUFS, &vinfo->picture.rb); |
494 | if (ret < 0) { |
495 | DBG_LOGB("VIDIOC_REQBUFS failed: %s", strerror(errno)); |
496 | //return ret; |
497 | }else{ |
498 | DBG_LOGA("VIDIOC_REQBUFS delete buffer success\n"); |
499 | } |
500 | setBuffersFormat(vinfo); |
501 | start_capturing(vinfo); |
502 | } |
503 | |
504 | void camera_close(struct VideoInfo *vinfo) |
505 | { |
506 | if (NULL == vinfo) { |
507 | DBG_LOGA("vinfo is null\n"); |
508 | return ; |
509 | } |
510 | |
511 | if (close(vinfo->fd) != 0) |
512 | DBG_LOGB("close failed, errno=%d\n", errno); |
513 | |
514 | vinfo->fd = -1; |
515 | } |
516 | #ifdef __cplusplus |
517 | //} |
518 | #endif |
519 | #endif |
520 |