int ps3av_set_audio_mode()

in ps3av.c [406:466]

• 43 lines of code
• 7 McCabe index (conditional complexity)

int ps3av_set_audio_mode(u32 ch, u32 fs, u32 word_bits, u32 format, u32 source)
{
	struct ps3av_pkt_avb_param avb_param;
	int i, num_of_audio, vid, res;
	struct ps3av_pkt_audio_mode audio_mode;
	u32 len = 0;

	num_of_audio = ps3av->av_hw_conf.num_of_hdmi +
		       ps3av->av_hw_conf.num_of_avmulti +
		       ps3av->av_hw_conf.num_of_spdif;

	avb_param.num_of_video_pkt = 0;
	avb_param.num_of_audio_pkt = PS3AV_AVB_NUM_AUDIO;	/* always 0 */
	avb_param.num_of_av_video_pkt = 0;
	avb_param.num_of_av_audio_pkt = ps3av->av_hw_conf.num_of_hdmi;

	vid = video_mode_table[ps3av->ps3av_mode].vid;

	/* audio mute */
	ps3av_set_audio_mute(PS3AV_CMD_MUTE_ON);

	/* audio inactive */
	res = ps3av_cmd_audio_active(0, ps3av->audio_port);
	if (res < 0)
		dev_dbg(&ps3av->dev->core,
			"ps3av_cmd_audio_active OFF failed\n");

	/* audio_pkt */
	for (i = 0; i < num_of_audio; i++) {
		ps3av_cmd_set_audio_mode(&audio_mode, ps3av->av_port[i], ch,
					 fs, word_bits, format, source);
		if (i < ps3av->av_hw_conf.num_of_hdmi) {
			/* hdmi only */
			len += ps3av_cmd_set_av_audio_param(&avb_param.buf[len],
							    ps3av->av_port[i],
							    &audio_mode, vid);
		}
		/* audio_mode pkt should be sent separately */
		res = ps3av_cmd_audio_mode(&audio_mode);
		if (res < 0)
			dev_dbg(&ps3av->dev->core,
				"ps3av_cmd_audio_mode failed, port:%x\n", i);
	}

	/* send command using avb pkt */
	len += offsetof(struct ps3av_pkt_avb_param, buf);
	res = ps3av_cmd_avb_param(&avb_param, len);
	if (res < 0)
		dev_dbg(&ps3av->dev->core, "ps3av_cmd_avb_param failed\n");

	/* audio mute */
	ps3av_set_audio_mute(PS3AV_CMD_MUTE_OFF);

	/* audio active */
	res = ps3av_cmd_audio_active(1, ps3av->audio_port);
	if (res < 0)
		dev_dbg(&ps3av->dev->core,
			"ps3av_cmd_audio_active ON failed\n");

	return 0;
}