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ALSA: wm8990: Implement speaker volume PGA 

The latest revisions of the WM8990 provide a programmable gain amplifier
for the speaker - configure the register cache and implement controls
for this. Older revisions of the device ignore writes to these controls.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Mark Brown 2008-08-15 16:22:33 +01:00 committed by Takashi Iwai
parent 436a74593c
commit 97bb8129e5
2 changed files with 18 additions and 4 deletions
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8
sound/soc/codecs/wm8990.c
View File

@ -82,7 +82,7 @@ static const u16 wm8990_reg[] = {
0x0003, /* R35 - ClassD1 */
0x0000, /* R36 */
0x0100, /* R37 - ClassD3 */
0x0000, /* R38 */
0x0079, /* R38 - ClassD4 */
0x0000, /* R39 - Input Mixer1 */
0x0000, /* R40 - Input Mixer2 */
0x0000, /* R41 - Input Mixer3 */
@ -311,11 +311,15 @@ SOC_SINGLE("Speaker Mode Switch", WM8990_CLASSD1,
WM8990_CDMODE_BIT, 1, 0),
SOC_SINGLE("Speaker Output Attenuation Volume", WM8990_SPEAKER_VOLUME,
WM8990_SPKVOL_SHIFT, WM8990_SPKVOL_MASK, 0),
WM8990_SPKATTN_SHIFT, WM8990_SPKATTN_MASK, 0),
SOC_SINGLE("Speaker DC Boost Volume", WM8990_CLASSD3,
WM8990_DCGAIN_SHIFT, WM8990_DCGAIN_MASK, 0),
SOC_SINGLE("Speaker AC Boost Volume", WM8990_CLASSD3,
WM8990_ACGAIN_SHIFT, WM8990_ACGAIN_MASK, 0),
SOC_SINGLE_TLV("Speaker Volume", WM8990_CLASSD4,
WM8990_SPKVOL_SHIFT, WM8990_SPKVOL_MASK, 0, out_pga_tlv),
SOC_SINGLE("Speaker ZC Switch", WM8990_CLASSD4,
WM8990_SPKZC_SHIFT, WM8990_SPKZC_MASK, 0),
SOC_WM899X_OUTPGA_SINGLE_R_TLV("Left DAC Digital Volume",
WM8990_LEFT_DAC_DIGITAL_VOLUME,

14
sound/soc/codecs/wm8990.h
View File

@ -54,6 +54,7 @@
#define WM8990_SPEAKER_VOLUME 0x22
#define WM8990_CLASSD1 0x23
#define WM8990_CLASSD3 0x25
#define WM8990_CLASSD4 0x26
#define WM8990_INPUT_MIXER1 0x27
#define WM8990_INPUT_MIXER2 0x28
#define WM8990_INPUT_MIXER3 0x29
@ -528,8 +529,8 @@
/*
* R34 (0x22) - Speaker Volume
*/
#define WM8990_SPKVOL_MASK 0x0003 /* SPKVOL - [1:0] */
#define WM8990_SPKVOL_SHIFT 0
#define WM8990_SPKATTN_MASK 0x0003 /* SPKATTN - [1:0] */
#define WM8990_SPKATTN_SHIFT 0
/*
* R35 (0x23) - ClassD1
@ -544,6 +545,15 @@
#define WM8990_DCGAIN_SHIFT 3
#define WM8990_ACGAIN_MASK 0x0007 /* ACGAIN - [2:0] */
#define WM8990_ACGAIN_SHIFT 0
/*
* R38 (0x26) - ClassD4
*/
#define WM8990_SPKZC_MASK 0x0001 /* SPKZC */
#define WM8990_SPKZC_SHIFT 7 /* SPKZC */
#define WM8990_SPKVOL_MASK 0x007F /* SPKVOL - [6:0] */
#define WM8990_SPKVOL_SHIFT 0 /* SPKVOL - [6:0] */
/*
* R39 (0x27) - Input Mixer1
*/