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authorPrzemyslaw Bruski <pbruskispam@op.pl>2011-03-13 16:18:55 +0100
committerTakashi Iwai <tiwai@suse.de>2011-03-14 11:15:59 +0100
commit19002fd5f1ba452ba13491f97da65367f80e09a8 (patch)
tree39b2eedd2fff4908cac72d1556eee15164deb715 /sound
parent7e79443ce250776b8477426127acdac15c567f22 (diff)
ALSA: ctxfi - Fix microphone boost codes/comments
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>
Diffstat (limited to 'sound')
-rw-r--r--sound/pci/ctxfi/cthw20k2.c28
1 files changed, 18 insertions, 10 deletions
diff --git a/sound/pci/ctxfi/cthw20k2.c b/sound/pci/ctxfi/cthw20k2.c
index b6b11bfe7574..5364164674e4 100644
--- a/sound/pci/ctxfi/cthw20k2.c
+++ b/sound/pci/ctxfi/cthw20k2.c
@@ -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);