raspi/linux
1
0
Fork 1
mirror of https://github.com/raspberrypi/linux.git synced 2025-12-06 01:49:46 +00:00
Code Issues Projects Releases Wiki Activity

tpa6130a2: Add headphone switch control

Browse Source 
Signed-off-by: Jan Grulich <jan@grulich.eu>
This commit is contained in:
Jan Grulich
2015-08-24 16:02:34 +01:00
committed by popcornmix
parent 5133d16d70
commit 570d2d99cb
1 changed files with 26 additions and 3 deletions
Download Patch File Download Diff File Expand all files Collapse all files

29
sound/soc/codecs/tpa6130a2.c
View File

@@ -4,6 +4,7 @@
* Copyright (C) Nokia Corporation
*
* Author: Peter Ujfalusi <peter.ujfalusi@ti.com>
* Modified: Jan Grulich <jan@grulich.eu>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
@@ -52,6 +53,8 @@ struct tpa6130a2_data {
enum tpa_model id;
};
static void tpa6130a2_channel_enable(u8 channel, int enable);
static int tpa6130a2_i2c_read(int reg)
{
struct tpa6130a2_data *data;
@@ -189,7 +192,7 @@ exit:
}
static int tpa6130a2_get_volsw(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
struct snd_ctl_elem_value *ucontrol)
{
struct soc_mixer_control *mc =
(struct soc_mixer_control *)kcontrol->private_value;
@@ -218,7 +221,7 @@ static int tpa6130a2_get_volsw(struct snd_kcontrol *kcontrol,
}
static int tpa6130a2_put_volsw(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
struct snd_ctl_elem_value *ucontrol)
{
struct soc_mixer_control *mc =
(struct soc_mixer_control *)kcontrol->private_value;
@@ -255,8 +258,22 @@ static int tpa6130a2_put_volsw(struct snd_kcontrol *kcontrol,
return 1;
}
static int tpa6130a2_put_hp_sw(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
int enable = ucontrol->value.integer.value[0];
unsigned int state;
state = (tpa6130a2_read(TPA6130A2_REG_VOL_MUTE) & 0x80) == 0;
if (state == enable)
return 0; /* No change */
tpa6130a2_channel_enable(TPA6130A2_HP_EN_R | TPA6130A2_HP_EN_L, enable);
return 1; /* Changed */
}
/*
* TPA6130 volume. From -59.5 to 4 dB with increasing step size when going
* TPA6130 volume. From -59.5 to +4.0 dB with increasing step size when going
* down in gain.
*/
static const DECLARE_TLV_DB_RANGE(tpa6130_tlv,
@@ -277,6 +294,9 @@ static const struct snd_kcontrol_new tpa6130a2_controls[] = {
TPA6130A2_REG_VOL_MUTE, 0, 0x3f, 0,
tpa6130a2_get_volsw, tpa6130a2_put_volsw,
tpa6130_tlv),
SOC_SINGLE_EXT("TPA6130A2 Headphone Playback Switch",
TPA6130A2_REG_VOL_MUTE, 7, 1, 1,
tpa6130a2_get_volsw, tpa6130a2_put_hp_sw),
};
static const DECLARE_TLV_DB_RANGE(tpa6140_tlv,
@@ -290,6 +310,9 @@ static const struct snd_kcontrol_new tpa6140a2_controls[] = {
TPA6130A2_REG_VOL_MUTE, 1, 0x1f, 0,
tpa6130a2_get_volsw, tpa6130a2_put_volsw,
tpa6140_tlv),
SOC_SINGLE_EXT("TPA6140A2 Headphone Playback Switch",
TPA6130A2_REG_VOL_MUTE, 7, 1, 1,
tpa6130a2_get_volsw, tpa6130a2_put_hp_sw),
};
/*