mirror of https://github.com/hak5/openwrt-owl.git
50 lines
1.8 KiB
Diff
50 lines
1.8 KiB
Diff
From 7d86ec6d4ad388d8287a68d31ff3e3028477fd86 Mon Sep 17 00:00:00 2001
|
|
From: Gordon Garrity <gordon@iqaudio.com>
|
|
Date: Sun, 30 Mar 2014 13:52:33 +0100
|
|
Subject: [PATCH 52/54] fix soc-core's inverse range and let IQaudIO DAC use
|
|
this fixed SOC_DOUBLE_R_RANGE_TLV support
|
|
|
|
---
|
|
sound/soc/codecs/pcm512x.c | 3 ++-
|
|
sound/soc/soc-core.c | 8 ++++----
|
|
2 files changed, 6 insertions(+), 5 deletions(-)
|
|
|
|
--- a/sound/soc/codecs/pcm512x.c
|
|
+++ b/sound/soc/codecs/pcm512x.c
|
|
@@ -239,9 +239,10 @@ static const struct soc_enum pcm512x_ved
|
|
SOC_ENUM_SINGLE(PCM512x_DIGITAL_MUTE_2, PCM512x_VEDS_SHIFT, 4,
|
|
pcm512x_ramp_step_text);
|
|
|
|
+/* Don't let the DAC go into clipping by limiting the alsa volume control range */
|
|
static const struct snd_kcontrol_new pcm512x_controls[] = {
|
|
SOC_DOUBLE_R_RANGE_TLV("Playback Digital Volume", PCM512x_DIGITAL_VOLUME_2,
|
|
- PCM512x_DIGITAL_VOLUME_3, 0, 48, 255, 1, digital_tlv),
|
|
+ PCM512x_DIGITAL_VOLUME_3, 0, 40, 255, 1, digital_tlv),
|
|
SOC_DOUBLE("Playback Digital Switch", PCM512x_MUTE, PCM512x_RQML_SHIFT,
|
|
PCM512x_RQMR_SHIFT, 1, 1),
|
|
|
|
--- a/sound/soc/soc-core.c
|
|
+++ b/sound/soc/soc-core.c
|
|
@@ -3072,8 +3072,8 @@ int snd_soc_put_volsw_range(struct snd_k
|
|
|
|
if (invert)
|
|
val = ((max - ucontrol->value.integer.value[0] + min) & mask);
|
|
- else
|
|
- val = (ucontrol->value.integer.value[0] & mask);
|
|
+ else
|
|
+ val = (ucontrol->value.integer.value[0] & mask);
|
|
val_mask = mask << shift;
|
|
val = val << shift;
|
|
|
|
@@ -3084,8 +3084,8 @@ int snd_soc_put_volsw_range(struct snd_k
|
|
if (snd_soc_volsw_is_stereo(mc)) {
|
|
if (invert)
|
|
val = ((max - ucontrol->value.integer.value[1] + min) & mask);
|
|
- else
|
|
- val = (ucontrol->value.integer.value[1] & mask);
|
|
+ else
|
|
+ val = (ucontrol->value.integer.value[1] & mask);
|
|
val_mask = mask << shift;
|
|
val = val << shift;
|
|
|