Dear Brian Austin,
On Wed, 19 Mar 2014 10:40:02 -0500, Brian Austin wrote:
The shift values for the ADC,PCM, and Analog kcontrols were wrong causing wrong values for the SOC_DOUBLE_R_SX_TLV macros Fixed the TLV for aout_tlv to show -102dB correctly
Reported-by: Thomas Petazzoni thomas.petazzoni@free-electrons.com Signed-off-by: Brian Austin brian.austin@cirrus.com
sound/soc/codecs/cs42l51.c | 9 ++++----- 1 file changed, 4 insertions(+), 5 deletions(-)
Thanks for this patch. Unfortunately, it still doesn't solve completely the situation. When I start alsamixer, it shows that:
* PCM is at 102 (so above the maximum 100 value) * Both ADC Mixers are at 102 * Analog is at 174 (so way above the maximum 100 value)
Changing the value of PCM works (but of course I can then only change it between 0 and 100, not up to 102). However, as soon as I change the "Analog" value, even if I raise it up to 174, there isn't any sound anymore. Probably because the alsamixer range 0-100 doesn't allow to reach a high enough volume to be audible.
Here is the amixer output right after boot (without changing any value) :
================================================================= # amixer Simple mixer control 'Bass',0 Capabilities: volume volume-joined Playback channels: Mono Capture channels: Mono Limits: 0 - 15 Mono: 7 [47%] [0.00dB] Simple mixer control 'Treble',0 Capabilities: volume volume-joined Playback channels: Mono Capture channels: Mono Limits: 0 - 15 Mono: 7 [47%] [0.00dB] Simple mixer control 'PCM',0 Capabilities: pvolume pswitch Playback channels: Front Left - Front Right Limits: Playback 0 - 102 Mono: Front Left: Playback 103 [101%] [0.00dB] [off] Front Right: Playback 103 [101%] [0.00dB] [off] Simple mixer control 'PCM channel mixer',0 Capabilities: enum Items: 'L R' 'L+R' 'R L' Item0: 'L R' Simple mixer control 'Mic Boost',0 Capabilities: volume Playback channels: Front Left - Front Right Capture channels: Front Left - Front Right Limits: 0 - 1 Front Left: 0 [0%] [16.00dB] Front Right: 0 [0%] [16.00dB] Simple mixer control 'Playback Deemphasis',0 Capabilities: pswitch pswitch-joined Playback channels: Mono Mono: Playback [off] Simple mixer control 'ADC Mixer',0 Capabilities: volume pswitch Playback channels: Front Left - Front Right Capture channels: Front Left - Front Right Limits: 0 - 102 Front Left: 103 [101%] [0.00dB] Playback [off] Front Right: 103 [101%] [0.00dB] Playback [off] Simple mixer control 'Analog',0 Capabilities: pvolume Playback channels: Front Left - Front Right Limits: Playback 0 - 176 Mono: Front Left: Playback 204 [116%] [0.00dB] Front Right: Playback 204 [116%] [0.00dB] Simple mixer control 'Auto-Mute',0 Capabilities: pswitch pswitch-joined Playback channels: Mono Mono: Playback [on] Simple mixer control 'PGA-ADC Mux Left',0 Capabilities: enum Items: 'AIN1 Left' 'AIN2 Left' 'MIC Left' 'MIC+preamp Left' Item0: 'AIN1 Left' Simple mixer control 'PGA-ADC Mux Right',0 Capabilities: enum Items: 'AIN1 Right' 'AIN2 Right' 'MIC Right' 'MIC+preamp Right' Item0: 'AIN1 Right' Simple mixer control 'Soft Ramp',0 Capabilities: pswitch pswitch-joined Playback channels: Mono Mono: Playback [off] # =================================================================
See also an alsamixer screenshot at http://free-electrons.com/~thomas/pub/alsamixer-issue.png.
I wanted to give you the raw state of the codec registers, but for some reason, the codec_reg file is empty here (I'm on 3.15-rc1) :
================================================================= # cat /sys/kernel/debug/asoc/a370db/cs42l51-codec.0-004a/codec_reg # =================================================================
Note that if I revert back the cs42l51 code to the state before 1d99f2436d0d1c7741d6dfd9d27b5376cdbbca40 ('ASoC: core: Rework SOC_DOUBLE_R_SX_TLV add SOC_SINGLE_SX_TLV'), then the volume control works normally.
Thanks!
Thomas