mixart_mixer.c

linux-2.6.15.6

			changed = 1;
		}
	}
	if(changed) {
		if(is_capture)	mixart_update_capture_stream_level(chip, is_aes);
		else		mixart_update_playback_stream_level(chip, is_aes, idx);
	}
	up(&chip->mgr->mixer_mutex);
	return changed;
}

static snd_kcontrol_new_t snd_mixart_pcm_vol =
{
	.iface =        SNDRV_CTL_ELEM_IFACE_MIXER,
	/* name will be filled later */
	/* count will be filled later */
	.info =         mixart_digital_vol_info,		/* shared */
	.get =          mixart_pcm_vol_get,
	.put =          mixart_pcm_vol_put,
};


static int mixart_pcm_sw_get(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
{
	mixart_t *chip = snd_kcontrol_chip(kcontrol);
	int idx = snd_ctl_get_ioffidx(kcontrol, &ucontrol->id); /* index */
	snd_assert ( idx < MIXART_PLAYBACK_STREAMS ); 
	down(&chip->mgr->mixer_mutex);
	if(kcontrol->private_value & MIXART_VOL_AES_MASK)	/* AES playback */
		idx += MIXART_PLAYBACK_STREAMS;
	ucontrol->value.integer.value[0] = chip->digital_playback_active[idx][0];
	ucontrol->value.integer.value[1] = chip->digital_playback_active[idx][1];
	up(&chip->mgr->mixer_mutex);
	return 0;
}

static int mixart_pcm_sw_put(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
{
	mixart_t *chip = snd_kcontrol_chip(kcontrol);
	int changed = 0;
	int is_aes = kcontrol->private_value & MIXART_VOL_AES_MASK;
	int idx = snd_ctl_get_ioffidx(kcontrol, &ucontrol->id); /* index */
	int i, j;
	snd_assert ( idx < MIXART_PLAYBACK_STREAMS ); 
	down(&chip->mgr->mixer_mutex);
	j = idx;
	if(is_aes)	j += MIXART_PLAYBACK_STREAMS;
	for(i=0; i<2; i++) {
		if(chip->digital_playback_active[j][i] != ucontrol->value.integer.value[i]) {
			chip->digital_playback_active[j][i] = ucontrol->value.integer.value[i];
			changed = 1;
		}
	}
	if(changed)	mixart_update_playback_stream_level(chip, is_aes, idx);
	up(&chip->mgr->mixer_mutex);
	return changed;
}

static snd_kcontrol_new_t mixart_control_pcm_switch = {
	.iface =	SNDRV_CTL_ELEM_IFACE_MIXER,
	/* name will be filled later */
	.count =        MIXART_PLAYBACK_STREAMS,
	.info =         mixart_sw_info,		/* shared */
	.get =          mixart_pcm_sw_get,
	.put =          mixart_pcm_sw_put
};

static int mixart_update_monitoring(mixart_t* chip, int channel)
{
	int err;
	mixart_msg_t request;
	mixart_set_out_audio_level_t audio_level;
	u32 resp;

	if(chip->pipe_out_ana.status == PIPE_UNDEFINED)
		return -EINVAL; /* no pipe defined */

	if(!channel)	request.uid = chip->pipe_out_ana.uid_left_connector;
	else		request.uid = chip->pipe_out_ana.uid_right_connector;
	request.message_id = MSG_CONNECTOR_SET_OUT_AUDIO_LEVEL;
	request.data = &audio_level;
	request.size = sizeof(audio_level);

	memset(&audio_level, 0, sizeof(audio_level));
	audio_level.valid_mask1 = MIXART_AUDIO_LEVEL_MONITOR_MASK | MIXART_AUDIO_LEVEL_MUTE_M1_MASK;
	audio_level.monitor_level = mixart_digital_level[chip->monitoring_volume[channel!=0]];
	audio_level.monitor_mute1 = !chip->monitoring_active[channel!=0];

	err = snd_mixart_send_msg(chip->mgr, &request, sizeof(resp), &resp);
	if((err<0) || resp) {
		snd_printk(KERN_DEBUG "error MSG_CONNECTOR_SET_OUT_AUDIO_LEVEL card(%d) resp(%x)\n", chip->chip_idx, resp);
		return -EINVAL;
	}
	return 0;
}

/*
 * monitoring level control
 */

static int mixart_monitor_vol_get(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
{
	mixart_t *chip = snd_kcontrol_chip(kcontrol);
	down(&chip->mgr->mixer_mutex);
	ucontrol->value.integer.value[0] = chip->monitoring_volume[0];
	ucontrol->value.integer.value[1] = chip->monitoring_volume[1];
	up(&chip->mgr->mixer_mutex);
	return 0;
}

static int mixart_monitor_vol_put(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
{
	mixart_t *chip = snd_kcontrol_chip(kcontrol);
	int changed = 0;
	int i;
	down(&chip->mgr->mixer_mutex);
	for(i=0; i<2; i++) {
		if(chip->monitoring_volume[i] != ucontrol->value.integer.value[i]) {
			chip->monitoring_volume[i] = ucontrol->value.integer.value[i];
			mixart_update_monitoring(chip, i);
			changed = 1;
		}
	}
	up(&chip->mgr->mixer_mutex);
	return changed;
}

static snd_kcontrol_new_t mixart_control_monitor_vol = {
	.iface =	SNDRV_CTL_ELEM_IFACE_MIXER,
	.name =         "Monitoring Volume",
	.info =		mixart_digital_vol_info,		/* shared */
	.get =		mixart_monitor_vol_get,
	.put =		mixart_monitor_vol_put,
};

/*
 * monitoring switch control
 */

static int mixart_monitor_sw_get(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
{
	mixart_t *chip = snd_kcontrol_chip(kcontrol);
	down(&chip->mgr->mixer_mutex);
	ucontrol->value.integer.value[0] = chip->monitoring_active[0];
	ucontrol->value.integer.value[1] = chip->monitoring_active[1];
	up(&chip->mgr->mixer_mutex);
	return 0;
}

static int mixart_monitor_sw_put(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
{
	mixart_t *chip = snd_kcontrol_chip(kcontrol);
	int changed = 0;
	int i;
	down(&chip->mgr->mixer_mutex);
	for(i=0; i<2; i++) {
		if(chip->monitoring_active[i] != ucontrol->value.integer.value[i]) {
			chip->monitoring_active[i] = ucontrol->value.integer.value[i];
			changed |= (1<<i); /* mask 0x01 ans 0x02 */
		}
	}
	if(changed) {
		/* allocate or release resources for monitoring */
		int allocate = chip->monitoring_active[0] || chip->monitoring_active[1];
		if(allocate) {
			snd_mixart_add_ref_pipe( chip, MIXART_PCM_ANALOG, 0, 1);	/* allocate the playback pipe for monitoring */
			snd_mixart_add_ref_pipe( chip, MIXART_PCM_ANALOG, 1, 1);	/* allocate the capture pipe for monitoring */
		}
		if(changed & 0x01)	mixart_update_monitoring(chip, 0);
		if(changed & 0x02)	mixart_update_monitoring(chip, 1);
		if(!allocate) {
			snd_mixart_kill_ref_pipe( chip->mgr, &chip->pipe_in_ana, 1);	/* release the capture pipe for monitoring */
			snd_mixart_kill_ref_pipe( chip->mgr, &chip->pipe_out_ana, 1);	/* release the playback pipe for monitoring */
		}
	}

	up(&chip->mgr->mixer_mutex);
	return (changed != 0);
}

static snd_kcontrol_new_t mixart_control_monitor_sw = {
	.iface =	SNDRV_CTL_ELEM_IFACE_MIXER,
	.name =         "Monitoring Switch",
	.info =         mixart_sw_info,		/* shared */
	.get =          mixart_monitor_sw_get,
	.put =          mixart_monitor_sw_put
};


static void mixart_reset_audio_levels(mixart_t *chip)
{
	/* analog volumes can be set even if there is no pipe */
	mixart_update_analog_audio_level(chip, 0);
	/* analog levels for capture only on the first two chips */
	if(chip->chip_idx < 2) {
		mixart_update_analog_audio_level(chip, 1);
	}
	return;
}


int snd_mixart_create_mixer(mixart_mgr_t *mgr)
{
	mixart_t *chip;
	int err, i;

	init_MUTEX(&mgr->mixer_mutex); /* can be in another place */

	for(i=0; i<mgr->num_cards; i++) {
		snd_kcontrol_new_t temp;
		chip = mgr->chip[i];

		/* analog output level control */
		temp = mixart_control_analog_level;
		temp.name = "Master Playback Volume";
		temp.private_value = 0; /* playback */
		if ((err = snd_ctl_add(chip->card, snd_ctl_new1(&temp, chip))) < 0)
			return err;
		/* output mute controls */
		if ((err = snd_ctl_add(chip->card, snd_ctl_new1(&mixart_control_output_switch, chip))) < 0)
			return err;

		/* analog input level control only on first two chips !*/
		if(i<2) {
			temp = mixart_control_analog_level;
			temp.name = "Master Capture Volume";
			temp.private_value = 1; /* capture */
			if ((err = snd_ctl_add(chip->card, snd_ctl_new1(&temp, chip))) < 0)
				return err;
		}

		temp = snd_mixart_pcm_vol;
		temp.name = "PCM Playback Volume";
		temp.count = MIXART_PLAYBACK_STREAMS;
		temp.private_value = 0; /* playback analog */
		if ((err = snd_ctl_add(chip->card, snd_ctl_new1(&temp, chip))) < 0)
			return err;

		temp.name = "PCM Capture Volume";
		temp.count = 1;
		temp.private_value = MIXART_VOL_REC_MASK; /* capture analog */
		if ((err = snd_ctl_add(chip->card, snd_ctl_new1(&temp, chip))) < 0)
			return err;

		if(mgr->board_type == MIXART_DAUGHTER_TYPE_AES) {
			temp.name = "AES Playback Volume";
			temp.count = MIXART_PLAYBACK_STREAMS;
			temp.private_value = MIXART_VOL_AES_MASK; /* playback AES/EBU */
			if ((err = snd_ctl_add(chip->card, snd_ctl_new1(&temp, chip))) < 0)
				return err;

			temp.name = "AES Capture Volume";
			temp.count = 0;
			temp.private_value = MIXART_VOL_REC_MASK | MIXART_VOL_AES_MASK; /* capture AES/EBU */
			if ((err = snd_ctl_add(chip->card, snd_ctl_new1(&temp, chip))) < 0)
				return err;
		}
		temp = mixart_control_pcm_switch;
		temp.name = "PCM Playback Switch";
		temp.private_value = 0; /* playback analog */
		if ((err = snd_ctl_add(chip->card, snd_ctl_new1(&temp, chip))) < 0)
			return err;

		if(mgr->board_type == MIXART_DAUGHTER_TYPE_AES) {
			temp.name = "AES Playback Switch";
			temp.private_value = MIXART_VOL_AES_MASK; /* playback AES/EBU */
			if ((err = snd_ctl_add(chip->card, snd_ctl_new1(&temp, chip))) < 0)
				return err;
		}

		/* monitoring */
		if ((err = snd_ctl_add(chip->card, snd_ctl_new1(&mixart_control_monitor_vol, chip))) < 0)
			return err;
		if ((err = snd_ctl_add(chip->card, snd_ctl_new1(&mixart_control_monitor_sw, chip))) < 0)
			return err;

		/* init all mixer data and program the master volumes/switches */
		mixart_reset_audio_levels(chip);
	}
	return 0;
}