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| author | Michael Giacomelli <giac2000@hotmail.com> | 2011-07-24 21:56:24 +0000 |
|---|---|---|
| committer | Michael Giacomelli <giac2000@hotmail.com> | 2011-07-24 21:56:24 +0000 |
| commit | c27ea297a35b555b93a5e2be66297c1ba6cdbed4 (patch) | |
| tree | f96abc8f6e30274aaa9863eae98f924565d25c2c | |
| parent | 855e3c6f0f7b32375b054781fd4d419e1b0fc306 (diff) | |
| download | rockbox-c27ea297a35b555b93a5e2be66297c1ba6cdbed4.zip rockbox-c27ea297a35b555b93a5e2be66297c1ba6cdbed4.tar.gz rockbox-c27ea297a35b555b93a5e2be66297c1ba6cdbed4.tar.bz2 rockbox-c27ea297a35b555b93a5e2be66297c1ba6cdbed4.tar.xz | |
Commit FS#12111 by Stephan Grossklass. Disables output mixer auto gain control on AMSv2. Should fix occasional distortion reported when running the player at very high output levels (e.g. at or above 0dB).
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@30208 a1c6a512-1295-4272-9138-f99709370657
| -rw-r--r-- | firmware/drivers/audio/as3514.c | 2 | ||||
| -rw-r--r-- | firmware/export/as3514.h | 4 |
2 files changed, 5 insertions, 1 deletions
diff --git a/firmware/drivers/audio/as3514.c b/firmware/drivers/audio/as3514.c index 1774932..64531cf 100644 --- a/firmware/drivers/audio/as3514.c +++ b/firmware/drivers/audio/as3514.c @@ -151,7 +151,7 @@ void audiohw_preinit(void) #ifdef HAVE_AS3543 as3514_write(AS3514_AUDIOSET1, AUDIOSET1_DAC_on | AUDIOSET1_DAC_GAIN_on); - as3514_write(AS3514_AUDIOSET2, AUDIOSET2_HPH_QUALITY_LOW_POWER); + as3514_write(AS3514_AUDIOSET2, AUDIOSET2_AGC_off | AUDIOSET2_HPH_QUALITY_LOW_POWER); /* common ground on, delay playback unmuting when inserting headphones */ as3514_write(AS3514_AUDIOSET3, AUDIOSET3_HPCM_on | AUDIOSET3_HP_LONGSTART); diff --git a/firmware/export/as3514.h b/firmware/export/as3514.h index dfe0f80..0bfd445 100644 --- a/firmware/export/as3514.h +++ b/firmware/export/as3514.h @@ -300,6 +300,10 @@ extern void audiohw_set_sampr_dividers(int fsel); /* AUDIOSET2 (15h) */ #ifdef HAVE_AS3543 +#define AUDIOSET2_BIAS_on (0x0 << 7) +#define AUDIOSET2_BIAS_off (0x1 << 7) +#define AUDIOSET2_SUM_off (0x1 << 6) +#define AUDIOSET2_AGC_off (0x1 << 5) #define AUDIOSET2_HPH_QUALITY_LOW_POWER (0x0 << 4) #define AUDIOSET2_HPH_QUALITY_HIGH (0x1 << 4) #else |