121     CamSource *ctx;  in camera_source_init()  local
123     ctx = mpp_calloc(CamSource, 1);  in camera_source_init()
124     if (!ctx)  in camera_source_init()
127     ctx->bufcnt = bufcnt;  in camera_source_init()
128     ctx->fd = open(device, O_RDWR | O_CLOEXEC, 0);  in camera_source_init()
129     if (ctx->fd < 0) {  in camera_source_init()
138         while (!camera_source_ioctl(ctx->fd, VIDIOC_ENUMINPUT, &input)) {  in camera_source_init()
145     if (0 != camera_source_ioctl(ctx->fd, VIDIOC_QUERYCAP, &cap)) {  in camera_source_init()
175         while (!camera_source_ioctl(ctx->fd, VIDIOC_ENUM_FMT, &fmtdesc)) {  in camera_source_init()
194     ctx->type = vfmt.type;  in camera_source_init()
196     if (-1 == camera_source_ioctl(ctx->fd, VIDIOC_S_FMT, &vfmt)) {  in camera_source_init()
201     if (-1 == camera_source_ioctl(ctx->fd, VIDIOC_G_FMT, &vfmt)) {  in camera_source_init()
210     req.count  = ctx->bufcnt;  in camera_source_init()
213     if (-1 == camera_source_ioctl(ctx->fd, VIDIOC_REQBUFS, &req)) {  in camera_source_init()
218     if (req.count != ctx->bufcnt) {  in camera_source_init()
224     for (i = 0 ; i < ctx->bufcnt; i++) {  in camera_source_init()
235         if (-1 == camera_source_ioctl(ctx->fd, VIDIOC_QUERYBUF, &buf)) {  in camera_source_init()
243             ctx->fbuf[i].start =  in camera_source_init()
248                      ctx->fd, buf.m.planes[0].m.mem_offset);  in camera_source_init()
251             ctx->fbuf[i].start =  in camera_source_init()
256                      ctx->fd, buf.m.offset);  in camera_source_init()
258         if (MAP_FAILED == ctx->fbuf[i].start) {  in camera_source_init()
263         ctx->fbuf[i].length = buf_len; // record buffer length for unmap  in camera_source_init()
270         if (camera_source_ioctl(ctx->fd, VIDIOC_EXPBUF, &expbuf) < 0) {  in camera_source_init()
281             mpp_buffer_import(&ctx->fbuf[i].buffer, &info);  in camera_source_init()
283         ctx->fbuf[i].export_fd = expbuf.fd;  in camera_source_init()
286     for (i = 0; i < ctx->bufcnt; i++ ) {  in camera_source_init()
299         if (-1 == camera_source_ioctl(ctx->fd, VIDIOC_QBUF, &buf)) {  in camera_source_init()
306     if (-1 == camera_source_ioctl(ctx->fd, VIDIOC_STREAMON, &type)) {  in camera_source_init()
312     for (i = 0; i < ctx->bufcnt; i++ ) {  in camera_source_init()
313         RK_S32 idx = camera_source_get_frame(ctx);  in camera_source_init()
315             camera_source_put_frame(ctx, idx);  in camera_source_init()
318     return ctx;  in camera_source_init()
321     camera_source_deinit(ctx);  in camera_source_init()
327 MPP_RET camera_source_deinit(CamSource *ctx)  in camera_source_deinit()  argument
333     if (NULL == ctx)  in camera_source_deinit()
336     if (ctx->fd < 0)  in camera_source_deinit()
340     type = ctx->type;  in camera_source_deinit()
342     camera_source_ioctl(ctx->fd, VIDIOC_STREAMOFF, &type);  in camera_source_deinit()
345     for (i = 0 ; i < ctx->bufcnt; i++) {  in camera_source_deinit()
350         camera_source_ioctl(ctx->fd, VIDIOC_QUERYBUF, &buf);  in camera_source_deinit()
351         if (ctx->fbuf[buf.index].buffer) {  in camera_source_deinit()
352             mpp_buffer_put(ctx->fbuf[buf.index].buffer);  in camera_source_deinit()
354         munmap(ctx->fbuf[buf.index].start, ctx->fbuf[buf.index].length);  in camera_source_deinit()
355         close(ctx->fbuf[i].export_fd);  in camera_source_deinit()
359     close(ctx->fd);  in camera_source_deinit()
360     MPP_FREE(ctx);  in camera_source_deinit()
365 RK_S32 camera_source_get_frame(CamSource *ctx)  in camera_source_get_frame()  argument
370     type = ctx->type;  in camera_source_get_frame()
381     if (-1 == camera_source_ioctl(ctx->fd, VIDIOC_DQBUF, &buf)) {  in camera_source_get_frame()
386     if (buf.index > ctx->bufcnt) {  in camera_source_get_frame()
398 MPP_RET camera_source_put_frame(CamSource *ctx, RK_S32 idx)  in camera_source_put_frame()  argument
406     type = ctx->type;  in camera_source_put_frame()
419     if (-1 == camera_source_ioctl(ctx->fd, VIDIOC_QBUF, &buf)) {  in camera_source_put_frame()
427 MppBuffer camera_frame_to_buf(CamSource *ctx, RK_S32 idx)  in camera_frame_to_buf()  argument
434     buf = ctx->fbuf[idx].buffer;  in camera_frame_to_buf()