From: Dylan Reid <dgreid@chromium.org>
To: alsa-devel@alsa-project.org
Cc: Dylan Reid <dgreid@chromium.org>,
broonie@opensource.wolfsonmicro.com, lgirdwood@gmail.com,
evan.ragsdale@maxim-ic.com
Subject: [PATCH] ASoC: max98088: Add TLV data for volume controls.
Date: Fri, 15 Feb 2013 08:55:10 -0800 [thread overview]
Message-ID: <1360947310-15217-1-git-send-email-dgreid@chromium.org> (raw)
Specify volumes as defined in the MAX98088/9 data sheet. Allows ALSA
lib snd_mixer_selem_get_playback_dB_range and related functions to
work.
Signed-off-by: Dylan Reid <dgreid@chromium.org>
---
sound/soc/codecs/max98088.c | 30 ++++++++++++++++++++++++------
1 file changed, 24 insertions(+), 6 deletions(-)
diff --git a/sound/soc/codecs/max98088.c b/sound/soc/codecs/max98088.c
index a4c16fd..3a7b7fd 100644
--- a/sound/soc/codecs/max98088.c
+++ b/sound/soc/codecs/max98088.c
@@ -739,14 +739,32 @@ static const unsigned int max98088_micboost_tlv[] = {
2, 2, TLV_DB_SCALE_ITEM(3000, 0, 0),
};
+static const unsigned int max98088_hp_tlv[] = {
+ TLV_DB_RANGE_HEAD(5),
+ 0, 6, TLV_DB_SCALE_ITEM(-6700, 400, 0),
+ 7, 14, TLV_DB_SCALE_ITEM(-4000, 300, 0),
+ 15, 21, TLV_DB_SCALE_ITEM(-1700, 200, 0),
+ 22, 27, TLV_DB_SCALE_ITEM(-400, 100, 0),
+ 28, 31, TLV_DB_SCALE_ITEM(150, 50, 0),
+};
+
+static const unsigned int max98088_spk_tlv[] = {
+ TLV_DB_RANGE_HEAD(5),
+ 0, 6, TLV_DB_SCALE_ITEM(-6200, 400, 0),
+ 7, 14, TLV_DB_SCALE_ITEM(-3500, 300, 0),
+ 15, 21, TLV_DB_SCALE_ITEM(-1200, 200, 0),
+ 22, 27, TLV_DB_SCALE_ITEM(100, 100, 0),
+ 28, 31, TLV_DB_SCALE_ITEM(650, 50, 0),
+};
+
static const struct snd_kcontrol_new max98088_snd_controls[] = {
- SOC_DOUBLE_R("Headphone Volume", M98088_REG_39_LVL_HP_L,
- M98088_REG_3A_LVL_HP_R, 0, 31, 0),
- SOC_DOUBLE_R("Speaker Volume", M98088_REG_3D_LVL_SPK_L,
- M98088_REG_3E_LVL_SPK_R, 0, 31, 0),
- SOC_DOUBLE_R("Receiver Volume", M98088_REG_3B_LVL_REC_L,
- M98088_REG_3C_LVL_REC_R, 0, 31, 0),
+ SOC_DOUBLE_R_TLV("Headphone Volume", M98088_REG_39_LVL_HP_L,
+ M98088_REG_3A_LVL_HP_R, 0, 31, 0, max98088_hp_tlv),
+ SOC_DOUBLE_R_TLV("Speaker Volume", M98088_REG_3D_LVL_SPK_L,
+ M98088_REG_3E_LVL_SPK_R, 0, 31, 0, max98088_spk_tlv),
+ SOC_DOUBLE_R_TLV("Receiver Volume", M98088_REG_3B_LVL_REC_L,
+ M98088_REG_3C_LVL_REC_R, 0, 31, 0, max98088_spk_tlv),
SOC_DOUBLE_R("Headphone Switch", M98088_REG_39_LVL_HP_L,
M98088_REG_3A_LVL_HP_R, 7, 1, 1),
--
1.8.0
next reply other threads:[~2013-02-15 16:56 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-02-15 16:55 Dylan Reid [this message]
2013-02-20 17:26 ` [PATCH] ASoC: max98088: Add TLV data for volume controls Mark Brown
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