Re: [alsa-devel] [PATCH 4/6] ESI W192M : Add TLV support to control volume using dB scale

14 Mar 2015

Hi,
sorry there is an error on this patch, please ignore it.
I will send the correct one.
Thanks
2015-03-14 3:31 GMT+01:00 klem.dev@gmail.com:
...
From: Clément Guedez klem.dev@gmail.com
Add TLV support to control volume using dB scale for input and ouput on
ESI W192M.
Signed-off-by: Clément Guedez klem.dev@gmail.com

diff --git a/sound/pci/ice1712/wtm.c b/sound/pci/ice1712/wtm.c
index 59483b4..3af9daf 100644
--- a/sound/pci/ice1712/wtm.c
+++ b/sound/pci/ice1712/wtm.c
@@ -29,6 +29,7 @@
 #include <linux/interrupt.h>
 #include <linux/init.h>
 #include <sound/core.h>
+#include <sound/tlv.h>
#include "ice1712.h"
 #include "envy24ht.h"
@@ -380,17 +381,25 @@ static int stac9460_mic_sw_put(struct snd_kcontrol
*kcontrol,
        return change;
 }



+/*Limits value in dB for fader*/
+static const DECLARE_TLV_DB_SCALE(db_scale_dac, -19125, 75, 0);
+static const DECLARE_TLV_DB_SCALE(db_scale_adc, 0, 150, 0);



/*

Control tabs

*/
 static struct snd_kcontrol_new stac9640_controls[] = {
        {
                .iface = SNDRV_CTL_ELEM_IFACE_MIXER,

          .access = (SNDRV_CTL_ELEM_ACCESS_READWRITE |


                      SNDRV_CTL_ELEM_ACCESS_TLV_READ),
          .name = "Master Playback Switch",
          .info = stac9460_dac_mute_info,
          .get = stac9460_dac_mute_get,
          .put = stac9460_dac_mute_put,
          .private_value = 1


          .tlv = { .p = db_scale_dac }
  },
  {
          .iface = SNDRV_CTL_ELEM_IFACE_MIXER,



@@ -419,11 +428,15 @@ static struct snd_kcontrol_new stac9640_controls[] =
{
        },
        {
                .iface = SNDRV_CTL_ELEM_IFACE_MIXER,

          .access = (SNDRV_CTL_ELEM_ACCESS_READWRITE |


                      SNDRV_CTL_ELEM_ACCESS_TLV_READ),


          .name = "DAC Volume",
          .count = 8,
          .info = stac9460_dac_vol_info,
          .get = stac9460_dac_vol_get,
          .put = stac9460_dac_vol_put,


          .tlv = { .p = db_scale_dac }
  },
  {
          .iface = SNDRV_CTL_ELEM_IFACE_MIXER,



@@ -435,12 +448,15 @@ static struct snd_kcontrol_new stac9640_controls[] =
{
        },
        {
                .iface = SNDRV_CTL_ELEM_IFACE_MIXER,

          .access = (SNDRV_CTL_ELEM_ACCESS_READWRITE |


                      SNDRV_CTL_ELEM_ACCESS_TLV_READ),


          .name = "ADC Volume",
          .count = 2,
          .info = stac9460_adc_vol_info,
          .get = stac9460_adc_vol_get,
          .put = stac9460_adc_vol_put,







          .tlv = { .p = db_scale_adc }
  }



};
--
2.1.4

    