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[ALSA] powermac - Add AUTO_DRC config

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

Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Takashi Iwai 2005-09-07 17:08:40 +02:00 committed by Jaroslav Kysela
parent a28f1cda0d
commit f328385309
2 changed files with 30 additions and 7 deletions
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14
sound/ppc/Kconfig
View File

@ -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

23
sound/ppc/tumbler.c
View File

@ -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;