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Commit f3283853 authored by Takashi Iwai's avatar Takashi Iwai Committed by Jaroslav Kysela
Browse files

[ALSA] powermac - Add AUTO_DRC config 



PPC,PPC Tumbler driver
Added AUTO_DRC kernel config to enable/disable the auto-DRC-toggle
feature on tumbler/snapper.

Signed-off-by: default avatarTakashi Iwai <tiwai@suse.de>
parent a28f1cda

sound/ppc/Kconfig

+13 −1
Original line number Diff line number Diff line
@@ -20,5 +20,17 @@ config SND_POWERMAC 
	  To compile this driver as a module, choose M here: the module

	  will be called snd-powermac.



endmenu

config SND_POWERMAC_AUTO_DRC

	bool "Toggle DRC automatically at headphone/line plug-in"

	depends on SND_POWERMAC

	default y

	help

	  Say Y here to enable the automatic toggle of DRC (dynamic

	  range compression) on Tumbler/Snapper.

	  If this feature is enabled, DRC is turned off when the

	  headphone/line jack is plugged, and turned on when unplugged.



	  Note that you can turn on/off DRC manually even without this

	  option.



endmenu

sound/ppc/tumbler.c

+17 −6
Original line number Diff line number Diff line
@@ -948,7 +948,6 @@ static void device_change_handler(void *self) 
			msleep(10);

		check_mute(chip, &mix->amp_mute, 1, mix->auto_mute_notify,

			   chip->speaker_sw_ctl);

		mix->drc_enable = 0;

	} else {

		/* unmute speaker, mute others */

		check_mute(chip, &mix->amp_mute, 0, mix->auto_mute_notify,
@@ -960,20 +959,21 @@ static void device_change_handler(void *self) 
		if (mix->line_mute.addr != 0)

			check_mute(chip, &mix->line_mute, 1, mix->auto_mute_notify,

				   chip->lineout_sw_ctl);

		mix->drc_enable = 1;

	}

	if (mix->auto_mute_notify) {

	if (mix->auto_mute_notify)

		snd_ctl_notify(chip->card, SNDRV_CTL_EVENT_MASK_VALUE,

				       &chip->hp_detect_ctl->id);



#ifdef CONFIG_SND_POWERMAC_AUTO_DRC

	mix->drc_enable = ! (headphone || lineout);

	if (mix->auto_mute_notify)

		snd_ctl_notify(chip->card, SNDRV_CTL_EVENT_MASK_VALUE,

			       &chip->drc_sw_ctl->id);

	}



	/* first set the DRC so the speaker do not explode -ReneR */

	if (chip->model == PMAC_TUMBLER)

		tumbler_set_drc(mix);

	else

		snapper_set_drc(mix);

#endif



	/* reset the master volume so the correct amplification is applied */

	tumbler_set_master_volume(mix);
@@ -1370,6 +1370,17 @@ int __init snd_pmac_tumbler_init(pmac_t *chip) 
	if ((err = snd_ctl_add(chip->card, chip->drc_sw_ctl)) < 0)

		return err;



	/* set initial DRC range to 60% */

	if (chip->model == PMAC_TUMBLER)

		mix->drc_range = (TAS3001_DRC_MAX * 6) / 10;

	else

		mix->drc_range = (TAS3004_DRC_MAX * 6) / 10;

	mix->drc_enable = 1; /* will be changed later if AUTO_DRC is set */

	if (chip->model == PMAC_TUMBLER)

		tumbler_set_drc(mix);

	else

		snapper_set_drc(mix);



#ifdef CONFIG_PM

	chip->suspend = tumbler_suspend;

	chip->resume = tumbler_resume;