From 9711b1e2e32fbd8ad182712f57346a504a795f48 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Nils=20Wallm=C3=A9nius?= Date: Sat, 27 Dec 2008 22:56:29 +0000 Subject: Gigabeat S, use saner input volume on the line in used for fm to have fm volume at similar volume as playback. Add a few comments. git-svn-id: svn://svn.rockbox.org/rockbox/trunk@19602 a1c6a512-1295-4272-9138-f99709370657 --- firmware/drivers/audio/wm8978.c | 15 +++++++++------ 1 file changed, 9 insertions(+), 6 deletions(-) diff --git a/firmware/drivers/audio/wm8978.c b/firmware/drivers/audio/wm8978.c index d8bf050..ee881fb 100644 --- a/firmware/drivers/audio/wm8978.c +++ b/firmware/drivers/audio/wm8978.c @@ -227,12 +227,15 @@ void audiohw_postinit(void) wmc_write(WMC_DAC_CONTROL, WMC_DACOSR_128 | WMC_AMUTE); wmc_set(WMC_INPUT_CTRL, WMC_R2_2INPPGA | WMC_L2_2INPPGA); - wmc_set(WMC_LEFT_INP_PGA_GAIN_CTRL, 0x3f); - wmc_set(WMC_RIGHT_INP_PGA_GAIN_CTRL, 0x3f); - wmc_set(WMC_LEFT_INP_PGA_GAIN_CTRL, 1<<8); - wmc_set(WMC_RIGHT_INP_PGA_GAIN_CTRL, 1<<8); - wmc_set(WMC_LEFT_ADC_BOOST_CTRL, (7<<3)); - wmc_set(WMC_RIGHT_ADC_BOOST_CTRL, (7<<3)); + /* set PGA volumes to 0dB and enable zero cross */ + wmc_set(WMC_LEFT_INP_PGA_GAIN_CTRL, 0x10 | 1 << 7); + wmc_set(WMC_RIGHT_INP_PGA_GAIN_CTRL, 0x10 | 1 << 7); + /* write to INPPGAUPDATE to actually change voulme */ + wmc_set(WMC_LEFT_INP_PGA_GAIN_CTRL, 1 << 8); + wmc_set(WMC_RIGHT_INP_PGA_GAIN_CTRL, 1 << 8); + /* set boost gain to 0dB */ + wmc_set(WMC_LEFT_ADC_BOOST_CTRL, (5 << 4)); + wmc_set(WMC_RIGHT_ADC_BOOST_CTRL, (5 << 4)); /* Specific to HW clocking */ wmc_write_masked(WMC_CLOCK_GEN_CTRL, WMC_BCLKDIV_4 | WMC_MS, -- cgit v1.1