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https://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson
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6a4f578745
This patch fixes the initialisation and reset of the tas codec. The tas will often reset if the i2s clocks go away so it needs to be completely re-initialised when clocks come back. Also, this patch adds some code for DRC that will be exploited later to add a DRC control again, fixing a regression over snd-powermac. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
56 lines
1.5 KiB
C
56 lines
1.5 KiB
C
/*
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* Apple Onboard Audio driver for tas codec (header)
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*
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* Copyright 2006 Johannes Berg <johannes@sipsolutions.net>
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*
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* GPL v2, can be found in COPYING.
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*/
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#ifndef __SND_AOA_CODECTASH
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#define __SND_AOA_CODECTASH
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#define TAS_REG_MCS 0x01 /* main control */
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# define TAS_MCS_FASTLOAD (1<<7)
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# define TAS_MCS_SCLK64 (1<<6)
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# define TAS_MCS_SPORT_MODE_MASK (3<<4)
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# define TAS_MCS_SPORT_MODE_I2S (2<<4)
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# define TAS_MCS_SPORT_MODE_RJ (1<<4)
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# define TAS_MCS_SPORT_MODE_LJ (0<<4)
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# define TAS_MCS_SPORT_WL_MASK (3<<0)
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# define TAS_MCS_SPORT_WL_16BIT (0<<0)
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# define TAS_MCS_SPORT_WL_18BIT (1<<0)
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# define TAS_MCS_SPORT_WL_20BIT (2<<0)
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# define TAS_MCS_SPORT_WL_24BIT (3<<0)
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#define TAS_REG_DRC 0x02
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#define TAS_REG_VOL 0x04
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#define TAS_REG_TREBLE 0x05
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#define TAS_REG_BASS 0x06
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#define TAS_REG_LMIX 0x07
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#define TAS_REG_RMIX 0x08
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#define TAS_REG_ACR 0x40 /* analog control */
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# define TAS_ACR_B_MONAUREAL (1<<7)
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# define TAS_ACR_B_MON_SEL_RIGHT (1<<6)
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# define TAS_ACR_DEEMPH_MASK (3<<2)
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# define TAS_ACR_DEEMPH_OFF (0<<2)
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# define TAS_ACR_DEEMPH_48KHz (1<<2)
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# define TAS_ACR_DEEMPH_44KHz (2<<2)
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# define TAS_ACR_INPUT_B (1<<1)
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# define TAS_ACR_ANALOG_PDOWN (1<<0)
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#define TAS_REG_MCS2 0x43 /* main control 2 */
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# define TAS_MCS2_ALLPASS (1<<1)
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#define TAS_REG_LEFT_BIQUAD6 0x10
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#define TAS_REG_RIGHT_BIQUAD6 0x19
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#define TAS_REG_LEFT_LOUDNESS 0x21
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#define TAS_REG_RIGHT_LOUDNESS 0x22
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#define TAS_REG_LEFT_LOUDNESS_GAIN 0x23
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#define TAS_REG_RIGHT_LOUDNESS_GAIN 0x24
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#define TAS3001_DRC_MAX 0x5f
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#define TAS3004_DRC_MAX 0xef
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#endif /* __SND_AOA_CODECTASH */
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