+ if (h->old_params.st_bitrate.target > MPEG_TOTAL_TARGET_BITRATE_MAX)
+ h->old_params.st_bitrate.target = MPEG_TOTAL_TARGET_BITRATE_MAX;
+ if (h->old_params.vi_bitrate.target > MPEG_VIDEO_TARGET_BITRATE_MAX)
+ h->old_params.vi_bitrate.target = MPEG_VIDEO_TARGET_BITRATE_MAX;
+ if (h->old_params.vi_bitrate.max > MPEG_VIDEO_MAX_BITRATE_MAX)
+ h->old_params.vi_bitrate.max = MPEG_VIDEO_MAX_BITRATE_MAX;
+ h->params.vi_bitrate = params->vi_bitrate.target;
+ h->params.vi_bitrate_peak = params->vi_bitrate.max;
+ if (h->old_params.au_bitrate.target <= 256) {
+ h->old_params.au_bitrate.target = 256;
+ h->params.au_l2_bitrate = V4L2_MPEG_AUDIO_L2_BITRATE_256K;
+ }
+ else {
+ h->old_params.au_bitrate.target = 384;
+ h->params.au_l2_bitrate = V4L2_MPEG_AUDIO_L2_BITRATE_384K;
+ }
+}
+
+static int handle_ctrl(struct saa6752hs_mpeg_params *params,
+ struct v4l2_ext_control *ctrl, unsigned int cmd)
+{
+ int old = 0, new;
+ int set = (cmd == VIDIOC_S_EXT_CTRLS);
+
+ new = ctrl->value;
+ switch (ctrl->id) {
+ case V4L2_CID_MPEG_STREAM_TYPE:
+ old = V4L2_MPEG_STREAM_TYPE_MPEG2_TS;
+ if (set && new != old)
+ return -ERANGE;
+ new = old;
+ break;
+ case V4L2_CID_MPEG_STREAM_PID_PMT:
+ old = params->ts_pid_pmt;
+ if (set && new > MPEG_PID_MAX)
+ return -ERANGE;
+ if (new > MPEG_PID_MAX)
+ new = MPEG_PID_MAX;
+ params->ts_pid_pmt = new;
+ break;
+ case V4L2_CID_MPEG_STREAM_PID_AUDIO:
+ old = params->ts_pid_audio;
+ if (set && new > MPEG_PID_MAX)
+ return -ERANGE;
+ if (new > MPEG_PID_MAX)
+ new = MPEG_PID_MAX;
+ params->ts_pid_audio = new;
+ break;
+ case V4L2_CID_MPEG_STREAM_PID_VIDEO:
+ old = params->ts_pid_video;
+ if (set && new > MPEG_PID_MAX)
+ return -ERANGE;
+ if (new > MPEG_PID_MAX)
+ new = MPEG_PID_MAX;
+ params->ts_pid_video = new;
+ break;
+ case V4L2_CID_MPEG_STREAM_PID_PCR:
+ old = params->ts_pid_pcr;
+ if (set && new > MPEG_PID_MAX)
+ return -ERANGE;
+ if (new > MPEG_PID_MAX)
+ new = MPEG_PID_MAX;
+ params->ts_pid_pcr = new;
+ break;
+ case V4L2_CID_MPEG_AUDIO_ENCODING:
+ old = V4L2_MPEG_AUDIO_ENCODING_LAYER_2;
+ if (set && new != old)
+ return -ERANGE;
+ new = old;
+ break;
+ case V4L2_CID_MPEG_AUDIO_L2_BITRATE:
+ old = params->au_l2_bitrate;
+ if (set && new != V4L2_MPEG_AUDIO_L2_BITRATE_256K &&
+ new != V4L2_MPEG_AUDIO_L2_BITRATE_384K)
+ return -ERANGE;
+ if (new <= V4L2_MPEG_AUDIO_L2_BITRATE_256K)
+ new = V4L2_MPEG_AUDIO_L2_BITRATE_256K;
+ else
+ new = V4L2_MPEG_AUDIO_L2_BITRATE_384K;
+ params->au_l2_bitrate = new;
+ break;
+ case V4L2_CID_MPEG_AUDIO_SAMPLING_FREQ:
+ old = V4L2_MPEG_AUDIO_SAMPLING_FREQ_48000;
+ if (set && new != old)
+ return -ERANGE;
+ new = old;
+ break;
+ case V4L2_CID_MPEG_VIDEO_ENCODING:
+ old = V4L2_MPEG_VIDEO_ENCODING_MPEG_2;
+ if (set && new != old)
+ return -ERANGE;
+ new = old;
+ break;
+ case V4L2_CID_MPEG_VIDEO_ASPECT:
+ old = params->vi_aspect;
+ if (set && new != V4L2_MPEG_VIDEO_ASPECT_16x9 &&
+ new != V4L2_MPEG_VIDEO_ASPECT_4x3)
+ return -ERANGE;
+ if (new != V4L2_MPEG_VIDEO_ASPECT_16x9)
+ new = V4L2_MPEG_VIDEO_ASPECT_4x3;
+ params->vi_aspect = new;
+ break;
+ case V4L2_CID_MPEG_VIDEO_BITRATE:
+ old = params->vi_bitrate * 1000;
+ new = 1000 * (new / 1000);
+ if (set && new > MPEG_VIDEO_TARGET_BITRATE_MAX * 1000)
+ return -ERANGE;
+ if (new > MPEG_VIDEO_TARGET_BITRATE_MAX * 1000)
+ new = MPEG_VIDEO_TARGET_BITRATE_MAX * 1000;
+ params->vi_bitrate = new / 1000;
+ break;
+ case V4L2_CID_MPEG_VIDEO_BITRATE_PEAK:
+ old = params->vi_bitrate_peak * 1000;
+ new = 1000 * (new / 1000);
+ if (set && new > MPEG_VIDEO_TARGET_BITRATE_MAX * 1000)
+ return -ERANGE;
+ if (new > MPEG_VIDEO_TARGET_BITRATE_MAX * 1000)
+ new = MPEG_VIDEO_TARGET_BITRATE_MAX * 1000;
+ params->vi_bitrate_peak = new / 1000;
+ break;
+ case V4L2_CID_MPEG_VIDEO_BITRATE_MODE:
+ old = params->vi_bitrate_mode;
+ params->vi_bitrate_mode = new;
+ break;
+ default:
+ return -EINVAL;
+ }
+ if (cmd == VIDIOC_G_EXT_CTRLS)
+ ctrl->value = old;