[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: Takashi Iwai <tiwai@suse.de>
diff --git a/sound/ppc/Kconfig b/sound/ppc/Kconfig
index bda5bc4..206b933 100644
--- a/sound/ppc/Kconfig
+++ b/sound/ppc/Kconfig
@@ -20,5 +20,17 @@
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
diff --git a/sound/ppc/tumbler.c b/sound/ppc/tumbler.c
index b94437c..65384af 100644
--- a/sound/ppc/tumbler.c
+++ b/sound/ppc/tumbler.c
@@ -948,7 +948,6 @@
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 @@
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 @@
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;