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ALSA: ctxfi - Fix microphone boost codes/comments

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microphone boost was set at +12dB, not +20dB (like in Windows driver
and in adc_conf structure declaration), some comments added.

Signed-off-by: Przemyslaw Bruski <pbruskispam@op.pl>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Przemyslaw Bruski 2011-03-13 16:18:55 +01:00 committed by Takashi Iwai
parent 7e79443ce2
commit 19002fd5f1
1 changed files with 18 additions and 10 deletions
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28
sound/pci/ctxfi/cthw20k2.c
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@ -1307,10 +1307,10 @@ static int hw_pll_init(struct hw *hw, unsigned int rsr)
set_field(&pllctl, PLLCTL_B, 0);
if (48000 == rsr) {
set_field(&pllctl, PLLCTL_FD, 16 - 2);
set_field(&pllctl, PLLCTL_RD, 1 - 1);
set_field(&pllctl, PLLCTL_RD, 1 - 1); /* 3000*16/1 = 48000 */
} else { /* 44100 */
set_field(&pllctl, PLLCTL_FD, 147 - 2);
set_field(&pllctl, PLLCTL_RD, 10 - 1);
set_field(&pllctl, PLLCTL_RD, 10 - 1); /* 3000*147/10 = 44100 */
}
hw_write_20kx(hw, PLL_CTL, pllctl);
mdelay(40);
@ -1740,6 +1740,10 @@ static int hw_is_adc_input_selected(struct hw *hw, enum ADCSRC type)
return data;
}
#define MIC_BOOST_0DB 0xCF
#define MIC_BOOST_STEPS_PER_DB 2
#define MIC_BOOST_20DB (MIC_BOOST_0DB + 20 * MIC_BOOST_STEPS_PER_DB)
static int hw_adc_input_select(struct hw *hw, enum ADCSRC type)
{
u32 data;
@ -1751,10 +1755,12 @@ static int hw_adc_input_select(struct hw *hw, enum ADCSRC type)
hw_write_20kx(hw, GPIO_DATA, data);
hw20k2_i2c_write(hw, MAKE_WM8775_ADDR(WM8775_ADCMC, 0x101),
MAKE_WM8775_DATA(0x101)); /* Mic-in */
hw20k2_i2c_write(hw, MAKE_WM8775_ADDR(WM8775_AADCL, 0xE7),
MAKE_WM8775_DATA(0xE7)); /* +12dB boost */
hw20k2_i2c_write(hw, MAKE_WM8775_ADDR(WM8775_AADCR, 0xE7),
MAKE_WM8775_DATA(0xE7)); /* +12dB boost */
hw20k2_i2c_write(hw,
MAKE_WM8775_ADDR(WM8775_AADCL, MIC_BOOST_20DB),
MAKE_WM8775_DATA(MIC_BOOST_20DB)); /* +20dB */
hw20k2_i2c_write(hw,
MAKE_WM8775_ADDR(WM8775_AADCR, MIC_BOOST_20DB),
MAKE_WM8775_DATA(MIC_BOOST_20DB)); /* +20dB */
break;
case ADC_LINEIN:
data &= ~(0x1 << 14);
@ -1827,10 +1833,12 @@ static int hw_adc_init(struct hw *hw, const struct adc_conf *info)
hw20k2_i2c_write(hw, MAKE_WM8775_ADDR(WM8775_ADCMC, 0x101),
MAKE_WM8775_DATA(0x101)); /* Mic-in */
hw20k2_i2c_write(hw, MAKE_WM8775_ADDR(WM8775_AADCL, 0xE7),
MAKE_WM8775_DATA(0xE7)); /* +12dB boost */
hw20k2_i2c_write(hw, MAKE_WM8775_ADDR(WM8775_AADCR, 0xE7),
MAKE_WM8775_DATA(0xE7)); /* +12dB boost */
hw20k2_i2c_write(hw,
MAKE_WM8775_ADDR(WM8775_AADCL, MIC_BOOST_20DB),
MAKE_WM8775_DATA(MIC_BOOST_20DB)); /* +20dB */
hw20k2_i2c_write(hw,
MAKE_WM8775_ADDR(WM8775_AADCR, MIC_BOOST_20DB),
MAKE_WM8775_DATA(MIC_BOOST_20DB)); /* +20dB */
} else if (mux == 2) {
/* Configures GPIO data to select Line-in */
data &= ~(0x1 << 14);