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android_kernel_xiaomi_sm8350/sound/soc/codecs/twl4030.h
Peter Ujfalusi 7393958f63 ASoC: TWL4030: Add analog loopback support 
This patch adds the analog loopback/bypass support for twl4030 codec.

Details for the implementation:
It seams that the analog loopback needs the DAC powered on on the channel,
where the loopback is selected. The switch for the DACs has been moved from
the DAPM_DAC to the "Analog XX Playback Mixer". In this way the DAC will be
powered while the audio playback is used or/and the loopback is enabled for
the channel.

The twl4030 codec powering has been reworked. Now the codec will be powered as
long as it does not receives the SND_SOC_BIAS_OFF event. The exceptions are
when the given change in the registers needs the codec power down/up cycle in
order to take effect. Otherwise the codec is on.

When the codec enters to STANDBY state and none of the loopback paths are
enabled, than the amplifiers, which are no in the DAPM path are forced to turn
off and the PLL is disabled. When playback/capture starts the disabled gains
are restored and the PLL is enabled.

When one of the loopback enabled in STANDBY mode, the disabled gains are
restored and the PLL is enabled also.

In short: the codec always goes to the lowest power state based on the
bias_level and the bypass_state.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@nokia.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2009-01-29 13:58:04 +00:00

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/*
* ALSA SoC TWL4030 codec driver
*
* Author: Steve Sakoman <steve@sakoman.com>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* version 2 as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA
*
*/
#ifndef __TWL4030_AUDIO_H__
#define __TWL4030_AUDIO_H__
#define TWL4030_REG_CODEC_MODE 0x1
#define TWL4030_REG_OPTION 0x2
#define TWL4030_REG_UNKNOWN 0x3
#define TWL4030_REG_MICBIAS_CTL 0x4
#define TWL4030_REG_ANAMICL 0x5
#define TWL4030_REG_ANAMICR 0x6
#define TWL4030_REG_AVADC_CTL 0x7
#define TWL4030_REG_ADCMICSEL 0x8
#define TWL4030_REG_DIGMIXING 0x9
#define TWL4030_REG_ATXL1PGA 0xA
#define TWL4030_REG_ATXR1PGA 0xB
#define TWL4030_REG_AVTXL2PGA 0xC
#define TWL4030_REG_AVTXR2PGA 0xD
#define TWL4030_REG_AUDIO_IF 0xE
#define TWL4030_REG_VOICE_IF 0xF
#define TWL4030_REG_ARXR1PGA 0x10
#define TWL4030_REG_ARXL1PGA 0x11
#define TWL4030_REG_ARXR2PGA 0x12
#define TWL4030_REG_ARXL2PGA 0x13
#define TWL4030_REG_VRXPGA 0x14
#define TWL4030_REG_VSTPGA 0x15
#define TWL4030_REG_VRX2ARXPGA 0x16
#define TWL4030_REG_AVDAC_CTL 0x17
#define TWL4030_REG_ARX2VTXPGA 0x18
#define TWL4030_REG_ARXL1_APGA_CTL 0x19
#define TWL4030_REG_ARXR1_APGA_CTL 0x1A
#define TWL4030_REG_ARXL2_APGA_CTL 0x1B
#define TWL4030_REG_ARXR2_APGA_CTL 0x1C
#define TWL4030_REG_ATX2ARXPGA 0x1D
#define TWL4030_REG_BT_IF 0x1E
#define TWL4030_REG_BTPGA 0x1F
#define TWL4030_REG_BTSTPGA 0x20
#define TWL4030_REG_EAR_CTL 0x21
#define TWL4030_REG_HS_SEL 0x22
#define TWL4030_REG_HS_GAIN_SET 0x23
#define TWL4030_REG_HS_POPN_SET 0x24
#define TWL4030_REG_PREDL_CTL 0x25
#define TWL4030_REG_PREDR_CTL 0x26
#define TWL4030_REG_PRECKL_CTL 0x27
#define TWL4030_REG_PRECKR_CTL 0x28
#define TWL4030_REG_HFL_CTL 0x29
#define TWL4030_REG_HFR_CTL 0x2A
#define TWL4030_REG_ALC_CTL 0x2B
#define TWL4030_REG_ALC_SET1 0x2C
#define TWL4030_REG_ALC_SET2 0x2D
#define TWL4030_REG_BOOST_CTL 0x2E
#define TWL4030_REG_SOFTVOL_CTL 0x2F
#define TWL4030_REG_DTMF_FREQSEL 0x30
#define TWL4030_REG_DTMF_TONEXT1H 0x31
#define TWL4030_REG_DTMF_TONEXT1L 0x32
#define TWL4030_REG_DTMF_TONEXT2H 0x33
#define TWL4030_REG_DTMF_TONEXT2L 0x34
#define TWL4030_REG_DTMF_TONOFF 0x35
#define TWL4030_REG_DTMF_WANONOFF 0x36
#define TWL4030_REG_I2S_RX_SCRAMBLE_H 0x37
#define TWL4030_REG_I2S_RX_SCRAMBLE_M 0x38
#define TWL4030_REG_I2S_RX_SCRAMBLE_L 0x39
#define TWL4030_REG_APLL_CTL 0x3A
#define TWL4030_REG_DTMF_CTL 0x3B
#define TWL4030_REG_DTMF_PGA_CTL2 0x3C
#define TWL4030_REG_DTMF_PGA_CTL1 0x3D
#define TWL4030_REG_MISC_SET_1 0x3E
#define TWL4030_REG_PCMBTMUX 0x3F
#define TWL4030_REG_RX_PATH_SEL 0x43
#define TWL4030_REG_VDL_APGA_CTL 0x44
#define TWL4030_REG_VIBRA_CTL 0x45
#define TWL4030_REG_VIBRA_SET 0x46
#define TWL4030_REG_VIBRA_PWM_SET 0x47
#define TWL4030_REG_ANAMIC_GAIN 0x48
#define TWL4030_REG_MISC_SET_2 0x49
#define TWL4030_CACHEREGNUM (TWL4030_REG_MISC_SET_2 + 1)
/* Bitfield Definitions */
/* TWL4030_CODEC_MODE (0x01) Fields */
#define TWL4030_APLL_RATE 0xF0
#define TWL4030_APLL_RATE_8000 0x00
#define TWL4030_APLL_RATE_11025 0x10
#define TWL4030_APLL_RATE_12000 0x20
#define TWL4030_APLL_RATE_16000 0x40
#define TWL4030_APLL_RATE_22050 0x50
#define TWL4030_APLL_RATE_24000 0x60
#define TWL4030_APLL_RATE_32000 0x80
#define TWL4030_APLL_RATE_44100 0x90
#define TWL4030_APLL_RATE_48000 0xA0
#define TWL4030_SEL_16K 0x04
#define TWL4030_CODECPDZ 0x02
#define TWL4030_OPT_MODE 0x01
/* TWL4030_REG_MICBIAS_CTL (0x04) Fields */
#define TWL4030_MICBIAS2_CTL 0x40
#define TWL4030_MICBIAS1_CTL 0x20
#define TWL4030_HSMICBIAS_EN 0x04
#define TWL4030_MICBIAS2_EN 0x02
#define TWL4030_MICBIAS1_EN 0x01
/* ANAMICL (0x05) Fields */
#define TWL4030_CNCL_OFFSET_START 0x80
#define TWL4030_OFFSET_CNCL_SEL 0x60
#define TWL4030_OFFSET_CNCL_SEL_ARX1 0x00
#define TWL4030_OFFSET_CNCL_SEL_ARX2 0x20
#define TWL4030_OFFSET_CNCL_SEL_VRX 0x40
#define TWL4030_OFFSET_CNCL_SEL_ALL 0x60
#define TWL4030_MICAMPL_EN 0x10
#define TWL4030_CKMIC_EN 0x08
#define TWL4030_AUXL_EN 0x04
#define TWL4030_HSMIC_EN 0x02
#define TWL4030_MAINMIC_EN 0x01
/* ANAMICR (0x06) Fields */
#define TWL4030_MICAMPR_EN 0x10
#define TWL4030_AUXR_EN 0x04
#define TWL4030_SUBMIC_EN 0x01
/* AVADC_CTL (0x07) Fields */
#define TWL4030_ADCL_EN 0x08
#define TWL4030_AVADC_CLK_PRIORITY 0x04
#define TWL4030_ADCR_EN 0x02
/* TWL4030_REG_ADCMICSEL (0x08) Fields */
#define TWL4030_DIGMIC1_EN 0x08
#define TWL4030_TX2IN_SEL 0x04
#define TWL4030_DIGMIC0_EN 0x02
#define TWL4030_TX1IN_SEL 0x01
/* AUDIO_IF (0x0E) Fields */
#define TWL4030_AIF_SLAVE_EN 0x80
#define TWL4030_DATA_WIDTH 0x60
#define TWL4030_DATA_WIDTH_16S_16W 0x00
#define TWL4030_DATA_WIDTH_32S_16W 0x40
#define TWL4030_DATA_WIDTH_32S_24W 0x60
#define TWL4030_AIF_FORMAT 0x18
#define TWL4030_AIF_FORMAT_CODEC 0x00
#define TWL4030_AIF_FORMAT_LEFT 0x08
#define TWL4030_AIF_FORMAT_RIGHT 0x10
#define TWL4030_AIF_FORMAT_TDM 0x18
#define TWL4030_AIF_TRI_EN 0x04
#define TWL4030_CLK256FS_EN 0x02
#define TWL4030_AIF_EN 0x01
/* EAR_CTL (0x21) */
#define TWL4030_EAR_GAIN 0x30
/* HS_GAIN_SET (0x23) Fields */
#define TWL4030_HSR_GAIN 0x0C
#define TWL4030_HSR_GAIN_PWR_DOWN 0x00
#define TWL4030_HSR_GAIN_PLUS_6DB 0x04
#define TWL4030_HSR_GAIN_0DB 0x08
#define TWL4030_HSR_GAIN_MINUS_6DB 0x0C
#define TWL4030_HSL_GAIN 0x03
#define TWL4030_HSL_GAIN_PWR_DOWN 0x00
#define TWL4030_HSL_GAIN_PLUS_6DB 0x01
#define TWL4030_HSL_GAIN_0DB 0x02
#define TWL4030_HSL_GAIN_MINUS_6DB 0x03
/* HS_POPN_SET (0x24) Fields */
#define TWL4030_VMID_EN 0x40
#define TWL4030_EXTMUTE 0x20
#define TWL4030_RAMP_DELAY 0x1C
#define TWL4030_RAMP_DELAY_20MS 0x00
#define TWL4030_RAMP_DELAY_40MS 0x04
#define TWL4030_RAMP_DELAY_81MS 0x08
#define TWL4030_RAMP_DELAY_161MS 0x0C
#define TWL4030_RAMP_DELAY_323MS 0x10
#define TWL4030_RAMP_DELAY_645MS 0x14
#define TWL4030_RAMP_DELAY_1291MS 0x18
#define TWL4030_RAMP_DELAY_2581MS 0x1C
#define TWL4030_RAMP_EN 0x02
/* PREDL_CTL (0x25) */
#define TWL4030_PREDL_GAIN 0x30
/* PREDR_CTL (0x26) */
#define TWL4030_PREDR_GAIN 0x30
/* PRECKL_CTL (0x27) */
#define TWL4030_PRECKL_GAIN 0x30
/* PRECKR_CTL (0x28) */
#define TWL4030_PRECKR_GAIN 0x30
/* HFL_CTL (0x29, 0x2A) Fields */
#define TWL4030_HF_CTL_HB_EN 0x04
#define TWL4030_HF_CTL_LOOP_EN 0x08
#define TWL4030_HF_CTL_RAMP_EN 0x10
#define TWL4030_HF_CTL_REF_EN 0x20
/* APLL_CTL (0x3A) Fields */
#define TWL4030_APLL_EN 0x10
#define TWL4030_APLL_INFREQ 0x0F
#define TWL4030_APLL_INFREQ_19200KHZ 0x05
#define TWL4030_APLL_INFREQ_26000KHZ 0x06
#define TWL4030_APLL_INFREQ_38400KHZ 0x0F
/* REG_MISC_SET_1 (0x3E) Fields */
#define TWL4030_CLK64_EN 0x80
#define TWL4030_SCRAMBLE_EN 0x40
#define TWL4030_FMLOOP_EN 0x20
#define TWL4030_SMOOTH_ANAVOL_EN 0x02
#define TWL4030_DIGMIC_LR_SWAP_EN 0x01
extern struct snd_soc_dai twl4030_dai;
extern struct snd_soc_codec_device soc_codec_dev_twl4030;
#endif /* End of __TWL4030_AUDIO_H__ */
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