615 lines
		
	
	
		
			17 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
			
		
		
	
	
			615 lines
		
	
	
		
			17 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
| // SPDX-License-Identifier: GPL-2.0-only
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| /*
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|  * ALSA SoC TLV320AIC23 codec driver
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|  *
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|  * Author:      Arun KS, <arunks@mistralsolutions.com>
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|  * Copyright:   (C) 2008 Mistral Solutions Pvt Ltd.,
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|  *
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|  * Based on sound/soc/codecs/wm8731.c by Richard Purdie
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|  *
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|  * Notes:
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|  *  The AIC23 is a driver for a low power stereo audio
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|  *  codec tlv320aic23
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|  *
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|  *  The machine layer should disable unsupported inputs/outputs by
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|  *  snd_soc_dapm_disable_pin(codec, "LHPOUT"), etc.
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|  */
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| 
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| #include <linux/module.h>
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| #include <linux/moduleparam.h>
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| #include <linux/init.h>
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| #include <linux/delay.h>
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| #include <linux/pm.h>
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| #include <linux/regmap.h>
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| #include <linux/slab.h>
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| #include <sound/core.h>
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| #include <sound/pcm.h>
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| #include <sound/pcm_params.h>
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| #include <sound/soc.h>
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| #include <sound/tlv.h>
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| #include <sound/initval.h>
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| 
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| #include "tlv320aic23.h"
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| 
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| /*
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|  * AIC23 register cache
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|  */
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| static const struct reg_default tlv320aic23_reg[] = {
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| 	{  0, 0x0097 },
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| 	{  1, 0x0097 },
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| 	{  2, 0x00F9 },
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| 	{  3, 0x00F9 },
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| 	{  4, 0x001A },
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| 	{  5, 0x0004 },
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| 	{  6, 0x0007 },
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| 	{  7, 0x0001 },
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| 	{  8, 0x0020 },
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| 	{  9, 0x0000 },
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| };
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| 
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| const struct regmap_config tlv320aic23_regmap = {
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| 	.reg_bits = 7,
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| 	.val_bits = 9,
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| 
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| 	.max_register = TLV320AIC23_RESET,
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| 	.reg_defaults = tlv320aic23_reg,
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| 	.num_reg_defaults = ARRAY_SIZE(tlv320aic23_reg),
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| 	.cache_type = REGCACHE_RBTREE,
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| };
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| EXPORT_SYMBOL(tlv320aic23_regmap);
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| 
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| static const char *rec_src_text[] = { "Line", "Mic" };
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| static const char *deemph_text[] = {"None", "32Khz", "44.1Khz", "48Khz"};
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| 
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| static SOC_ENUM_SINGLE_DECL(rec_src_enum,
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| 			    TLV320AIC23_ANLG, 2, rec_src_text);
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| 
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| static const struct snd_kcontrol_new tlv320aic23_rec_src_mux_controls =
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| SOC_DAPM_ENUM("Input Select", rec_src_enum);
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| 
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| static SOC_ENUM_SINGLE_DECL(tlv320aic23_deemph,
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| 			    TLV320AIC23_DIGT, 1, deemph_text);
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| 
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| static const DECLARE_TLV_DB_SCALE(out_gain_tlv, -12100, 100, 0);
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| static const DECLARE_TLV_DB_SCALE(input_gain_tlv, -1725, 75, 0);
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| static const DECLARE_TLV_DB_SCALE(sidetone_vol_tlv, -1800, 300, 0);
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| 
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| static int snd_soc_tlv320aic23_put_volsw(struct snd_kcontrol *kcontrol,
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| 	struct snd_ctl_elem_value *ucontrol)
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| {
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| 	struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
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| 	u16 val, reg;
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| 
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| 	val = (ucontrol->value.integer.value[0] & 0x07);
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| 
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| 	/* linear conversion to userspace
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| 	* 000	=	-6db
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| 	* 001	=	-9db
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| 	* 010	=	-12db
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| 	* 011	=	-18db (Min)
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| 	* 100	=	0db (Max)
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| 	*/
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| 	val = (val >= 4) ? 4  : (3 - val);
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| 
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| 	reg = snd_soc_component_read(component, TLV320AIC23_ANLG) & (~0x1C0);
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| 	snd_soc_component_write(component, TLV320AIC23_ANLG, reg | (val << 6));
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| 
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| 	return 0;
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| }
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| 
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| static int snd_soc_tlv320aic23_get_volsw(struct snd_kcontrol *kcontrol,
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| 	struct snd_ctl_elem_value *ucontrol)
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| {
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| 	struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
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| 	u16 val;
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| 
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| 	val = snd_soc_component_read(component, TLV320AIC23_ANLG) & (0x1C0);
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| 	val = val >> 6;
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| 	val = (val >= 4) ? 4  : (3 -  val);
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| 	ucontrol->value.integer.value[0] = val;
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| 	return 0;
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| 
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| }
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| 
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| static const struct snd_kcontrol_new tlv320aic23_snd_controls[] = {
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| 	SOC_DOUBLE_R_TLV("Digital Playback Volume", TLV320AIC23_LCHNVOL,
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| 			 TLV320AIC23_RCHNVOL, 0, 127, 0, out_gain_tlv),
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| 	SOC_SINGLE("Digital Playback Switch", TLV320AIC23_DIGT, 3, 1, 1),
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| 	SOC_DOUBLE_R("Line Input Switch", TLV320AIC23_LINVOL,
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| 		     TLV320AIC23_RINVOL, 7, 1, 0),
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| 	SOC_DOUBLE_R_TLV("Line Input Volume", TLV320AIC23_LINVOL,
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| 			 TLV320AIC23_RINVOL, 0, 31, 0, input_gain_tlv),
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| 	SOC_SINGLE("Mic Input Switch", TLV320AIC23_ANLG, 1, 1, 1),
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| 	SOC_SINGLE("Mic Booster Switch", TLV320AIC23_ANLG, 0, 1, 0),
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| 	SOC_SINGLE_EXT_TLV("Sidetone Volume", TLV320AIC23_ANLG, 6, 4, 0,
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| 			   snd_soc_tlv320aic23_get_volsw,
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| 			   snd_soc_tlv320aic23_put_volsw, sidetone_vol_tlv),
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| 	SOC_ENUM("Playback De-emphasis", tlv320aic23_deemph),
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| };
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| 
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| /* PGA Mixer controls for Line and Mic switch */
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| static const struct snd_kcontrol_new tlv320aic23_output_mixer_controls[] = {
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| 	SOC_DAPM_SINGLE("Line Bypass Switch", TLV320AIC23_ANLG, 3, 1, 0),
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| 	SOC_DAPM_SINGLE("Mic Sidetone Switch", TLV320AIC23_ANLG, 5, 1, 0),
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| 	SOC_DAPM_SINGLE("Playback Switch", TLV320AIC23_ANLG, 4, 1, 0),
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| };
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| 
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| static const struct snd_soc_dapm_widget tlv320aic23_dapm_widgets[] = {
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| 	SND_SOC_DAPM_DAC("DAC", "Playback", TLV320AIC23_PWR, 3, 1),
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| 	SND_SOC_DAPM_ADC("ADC", "Capture", TLV320AIC23_PWR, 2, 1),
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| 	SND_SOC_DAPM_MUX("Capture Source", SND_SOC_NOPM, 0, 0,
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| 			 &tlv320aic23_rec_src_mux_controls),
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| 	SND_SOC_DAPM_MIXER("Output Mixer", TLV320AIC23_PWR, 4, 1,
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| 			   &tlv320aic23_output_mixer_controls[0],
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| 			   ARRAY_SIZE(tlv320aic23_output_mixer_controls)),
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| 	SND_SOC_DAPM_PGA("Line Input", TLV320AIC23_PWR, 0, 1, NULL, 0),
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| 	SND_SOC_DAPM_PGA("Mic Input", TLV320AIC23_PWR, 1, 1, NULL, 0),
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| 
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| 	SND_SOC_DAPM_OUTPUT("LHPOUT"),
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| 	SND_SOC_DAPM_OUTPUT("RHPOUT"),
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| 	SND_SOC_DAPM_OUTPUT("LOUT"),
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| 	SND_SOC_DAPM_OUTPUT("ROUT"),
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| 
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| 	SND_SOC_DAPM_INPUT("LLINEIN"),
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| 	SND_SOC_DAPM_INPUT("RLINEIN"),
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| 
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| 	SND_SOC_DAPM_INPUT("MICIN"),
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| };
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| 
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| static const struct snd_soc_dapm_route tlv320aic23_intercon[] = {
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| 	/* Output Mixer */
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| 	{"Output Mixer", "Line Bypass Switch", "Line Input"},
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| 	{"Output Mixer", "Playback Switch", "DAC"},
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| 	{"Output Mixer", "Mic Sidetone Switch", "Mic Input"},
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| 
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| 	/* Outputs */
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| 	{"RHPOUT", NULL, "Output Mixer"},
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| 	{"LHPOUT", NULL, "Output Mixer"},
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| 	{"LOUT", NULL, "Output Mixer"},
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| 	{"ROUT", NULL, "Output Mixer"},
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| 
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| 	/* Inputs */
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| 	{"Line Input", NULL, "LLINEIN"},
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| 	{"Line Input", NULL, "RLINEIN"},
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| 	{"Mic Input", NULL, "MICIN"},
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| 
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| 	/* input mux */
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| 	{"Capture Source", "Line", "Line Input"},
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| 	{"Capture Source", "Mic", "Mic Input"},
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| 	{"ADC", NULL, "Capture Source"},
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| 
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| };
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| 
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| /* AIC23 driver data */
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| struct aic23 {
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| 	struct regmap *regmap;
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| 	int mclk;
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| 	int requested_adc;
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| 	int requested_dac;
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| };
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| 
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| /*
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|  * Common Crystals used
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|  * 11.2896 Mhz /128 = *88.2k  /192 = 58.8k
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|  * 12.0000 Mhz /125 = *96k    /136 = 88.235K
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|  * 12.2880 Mhz /128 = *96k    /192 = 64k
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|  * 16.9344 Mhz /128 = 132.3k /192 = *88.2k
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|  * 18.4320 Mhz /128 = 144k   /192 = *96k
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|  */
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| 
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| /*
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|  * Normal BOSR 0-256/2 = 128, 1-384/2 = 192
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|  * USB BOSR 0-250/2 = 125, 1-272/2 = 136
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|  */
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| static const int bosr_usb_divisor_table[] = {
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| 	128, 125, 192, 136
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| };
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| #define LOWER_GROUP ((1<<0) | (1<<1) | (1<<2) | (1<<3) | (1<<6) | (1<<7))
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| #define UPPER_GROUP ((1<<8) | (1<<9) | (1<<10) | (1<<11)        | (1<<15))
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| static const unsigned short sr_valid_mask[] = {
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| 	LOWER_GROUP|UPPER_GROUP,	/* Normal, bosr - 0*/
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| 	LOWER_GROUP,			/* Usb, bosr - 0*/
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| 	LOWER_GROUP|UPPER_GROUP,	/* Normal, bosr - 1*/
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| 	UPPER_GROUP,			/* Usb, bosr - 1*/
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| };
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| /*
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|  * Every divisor is a factor of 11*12
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|  */
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| #define SR_MULT (11*12)
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| #define A(x) (SR_MULT/x)
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| static const unsigned char sr_adc_mult_table[] = {
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| 	A(2), A(2), A(12), A(12),  0, 0, A(3), A(1),
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| 	A(2), A(2), A(11), A(11),  0, 0, 0, A(1)
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| };
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| static const unsigned char sr_dac_mult_table[] = {
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| 	A(2), A(12), A(2), A(12),  0, 0, A(3), A(1),
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| 	A(2), A(11), A(2), A(11),  0, 0, 0, A(1)
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| };
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| 
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| static unsigned get_score(int adc, int adc_l, int adc_h, int need_adc,
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| 		int dac, int dac_l, int dac_h, int need_dac)
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| {
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| 	if ((adc >= adc_l) && (adc <= adc_h) &&
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| 			(dac >= dac_l) && (dac <= dac_h)) {
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| 		int diff_adc = need_adc - adc;
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| 		int diff_dac = need_dac - dac;
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| 		return abs(diff_adc) + abs(diff_dac);
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| 	}
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| 	return UINT_MAX;
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| }
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| 
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| static int find_rate(int mclk, u32 need_adc, u32 need_dac)
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| {
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| 	int i, j;
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| 	int best_i = -1;
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| 	int best_j = -1;
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| 	int best_div = 0;
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| 	unsigned best_score = UINT_MAX;
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| 	int adc_l, adc_h, dac_l, dac_h;
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| 
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| 	need_adc *= SR_MULT;
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| 	need_dac *= SR_MULT;
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| 	/*
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| 	 * rates given are +/- 1/32
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| 	 */
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| 	adc_l = need_adc - (need_adc >> 5);
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| 	adc_h = need_adc + (need_adc >> 5);
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| 	dac_l = need_dac - (need_dac >> 5);
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| 	dac_h = need_dac + (need_dac >> 5);
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| 	for (i = 0; i < ARRAY_SIZE(bosr_usb_divisor_table); i++) {
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| 		int base = mclk / bosr_usb_divisor_table[i];
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| 		int mask = sr_valid_mask[i];
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| 		for (j = 0; j < ARRAY_SIZE(sr_adc_mult_table);
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| 				j++, mask >>= 1) {
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| 			int adc;
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| 			int dac;
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| 			int score;
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| 			if ((mask & 1) == 0)
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| 				continue;
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| 			adc = base * sr_adc_mult_table[j];
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| 			dac = base * sr_dac_mult_table[j];
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| 			score = get_score(adc, adc_l, adc_h, need_adc,
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| 					dac, dac_l, dac_h, need_dac);
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| 			if (best_score > score) {
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| 				best_score = score;
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| 				best_i = i;
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| 				best_j = j;
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| 				best_div = 0;
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| 			}
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| 			score = get_score((adc >> 1), adc_l, adc_h, need_adc,
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| 					(dac >> 1), dac_l, dac_h, need_dac);
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| 			/* prefer to have a /2 */
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| 			if ((score != UINT_MAX) && (best_score >= score)) {
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| 				best_score = score;
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| 				best_i = i;
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| 				best_j = j;
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| 				best_div = 1;
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| 			}
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| 		}
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| 	}
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| 	return (best_j << 2) | best_i | (best_div << TLV320AIC23_CLKIN_SHIFT);
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| }
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| 
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| #ifdef DEBUG
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| static void get_current_sample_rates(struct snd_soc_component *component, int mclk,
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| 		u32 *sample_rate_adc, u32 *sample_rate_dac)
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| {
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| 	int src = snd_soc_component_read(component, TLV320AIC23_SRATE);
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| 	int sr = (src >> 2) & 0x0f;
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| 	int val = (mclk / bosr_usb_divisor_table[src & 3]);
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| 	int adc = (val * sr_adc_mult_table[sr]) / SR_MULT;
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| 	int dac = (val * sr_dac_mult_table[sr]) / SR_MULT;
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| 	if (src & TLV320AIC23_CLKIN_HALF) {
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| 		adc >>= 1;
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| 		dac >>= 1;
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| 	}
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| 	*sample_rate_adc = adc;
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| 	*sample_rate_dac = dac;
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| }
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| #endif
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| 
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| static int set_sample_rate_control(struct snd_soc_component *component, int mclk,
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| 		u32 sample_rate_adc, u32 sample_rate_dac)
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| {
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| 	/* Search for the right sample rate */
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| 	int data = find_rate(mclk, sample_rate_adc, sample_rate_dac);
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| 	if (data < 0) {
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| 		printk(KERN_ERR "%s:Invalid rate %u,%u requested\n",
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| 				__func__, sample_rate_adc, sample_rate_dac);
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| 		return -EINVAL;
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| 	}
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| 	snd_soc_component_write(component, TLV320AIC23_SRATE, data);
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| #ifdef DEBUG
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| 	{
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| 		u32 adc, dac;
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| 		get_current_sample_rates(component, mclk, &adc, &dac);
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| 		printk(KERN_DEBUG "actual samplerate = %u,%u reg=%x\n",
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| 			adc, dac, data);
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| 	}
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| #endif
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| 	return 0;
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| }
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| 
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| static int tlv320aic23_hw_params(struct snd_pcm_substream *substream,
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| 				 struct snd_pcm_hw_params *params,
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| 				 struct snd_soc_dai *dai)
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| {
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| 	struct snd_soc_component *component = dai->component;
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| 	u16 iface_reg;
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| 	int ret;
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| 	struct aic23 *aic23 = snd_soc_component_get_drvdata(component);
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| 	u32 sample_rate_adc = aic23->requested_adc;
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| 	u32 sample_rate_dac = aic23->requested_dac;
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| 	u32 sample_rate = params_rate(params);
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| 
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| 	if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
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| 		aic23->requested_dac = sample_rate_dac = sample_rate;
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| 		if (!sample_rate_adc)
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| 			sample_rate_adc = sample_rate;
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| 	} else {
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| 		aic23->requested_adc = sample_rate_adc = sample_rate;
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| 		if (!sample_rate_dac)
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| 			sample_rate_dac = sample_rate;
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| 	}
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| 	ret = set_sample_rate_control(component, aic23->mclk, sample_rate_adc,
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| 			sample_rate_dac);
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| 	if (ret < 0)
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| 		return ret;
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| 
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| 	iface_reg = snd_soc_component_read(component, TLV320AIC23_DIGT_FMT) & ~(0x03 << 2);
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| 
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| 	switch (params_width(params)) {
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| 	case 16:
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| 		break;
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| 	case 20:
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| 		iface_reg |= (0x01 << 2);
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| 		break;
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| 	case 24:
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| 		iface_reg |= (0x02 << 2);
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| 		break;
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| 	case 32:
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| 		iface_reg |= (0x03 << 2);
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| 		break;
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| 	}
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| 	snd_soc_component_write(component, TLV320AIC23_DIGT_FMT, iface_reg);
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| 
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| 	return 0;
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| }
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| 
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| static int tlv320aic23_pcm_prepare(struct snd_pcm_substream *substream,
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| 				   struct snd_soc_dai *dai)
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| {
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| 	struct snd_soc_component *component = dai->component;
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| 
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| 	/* set active */
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| 	snd_soc_component_write(component, TLV320AIC23_ACTIVE, 0x0001);
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| 
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| 	return 0;
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| }
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| 
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| static void tlv320aic23_shutdown(struct snd_pcm_substream *substream,
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| 				 struct snd_soc_dai *dai)
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| {
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| 	struct snd_soc_component *component = dai->component;
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| 	struct aic23 *aic23 = snd_soc_component_get_drvdata(component);
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| 
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| 	/* deactivate */
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| 	if (!snd_soc_component_active(component)) {
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| 		udelay(50);
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| 		snd_soc_component_write(component, TLV320AIC23_ACTIVE, 0x0);
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| 	}
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| 	if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
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| 		aic23->requested_dac = 0;
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| 	else
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| 		aic23->requested_adc = 0;
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| }
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| 
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| static int tlv320aic23_mute(struct snd_soc_dai *dai, int mute, int direction)
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| {
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| 	struct snd_soc_component *component = dai->component;
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| 	u16 reg;
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| 
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| 	reg = snd_soc_component_read(component, TLV320AIC23_DIGT);
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| 	if (mute)
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| 		reg |= TLV320AIC23_DACM_MUTE;
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| 
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| 	else
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| 		reg &= ~TLV320AIC23_DACM_MUTE;
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| 
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| 	snd_soc_component_write(component, TLV320AIC23_DIGT, reg);
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| 
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| 	return 0;
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| }
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| 
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| static int tlv320aic23_set_dai_fmt(struct snd_soc_dai *codec_dai,
 | |
| 				   unsigned int fmt)
 | |
| {
 | |
| 	struct snd_soc_component *component = codec_dai->component;
 | |
| 	u16 iface_reg;
 | |
| 
 | |
| 	iface_reg = snd_soc_component_read(component, TLV320AIC23_DIGT_FMT) & (~0x03);
 | |
| 
 | |
| 	switch (fmt & SND_SOC_DAIFMT_CLOCK_PROVIDER_MASK) {
 | |
| 	case SND_SOC_DAIFMT_CBP_CFP:
 | |
| 		iface_reg |= TLV320AIC23_MS_MASTER;
 | |
| 		break;
 | |
| 	case SND_SOC_DAIFMT_CBC_CFC:
 | |
| 		iface_reg &= ~TLV320AIC23_MS_MASTER;
 | |
| 		break;
 | |
| 	default:
 | |
| 		return -EINVAL;
 | |
| 
 | |
| 	}
 | |
| 
 | |
| 	/* interface format */
 | |
| 	switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
 | |
| 	case SND_SOC_DAIFMT_I2S:
 | |
| 		iface_reg |= TLV320AIC23_FOR_I2S;
 | |
| 		break;
 | |
| 	case SND_SOC_DAIFMT_DSP_A:
 | |
| 		iface_reg |= TLV320AIC23_LRP_ON;
 | |
| 		fallthrough;
 | |
| 	case SND_SOC_DAIFMT_DSP_B:
 | |
| 		iface_reg |= TLV320AIC23_FOR_DSP;
 | |
| 		break;
 | |
| 	case SND_SOC_DAIFMT_RIGHT_J:
 | |
| 		break;
 | |
| 	case SND_SOC_DAIFMT_LEFT_J:
 | |
| 		iface_reg |= TLV320AIC23_FOR_LJUST;
 | |
| 		break;
 | |
| 	default:
 | |
| 		return -EINVAL;
 | |
| 
 | |
| 	}
 | |
| 
 | |
| 	snd_soc_component_write(component, TLV320AIC23_DIGT_FMT, iface_reg);
 | |
| 
 | |
| 	return 0;
 | |
| }
 | |
| 
 | |
| static int tlv320aic23_set_dai_sysclk(struct snd_soc_dai *codec_dai,
 | |
| 				      int clk_id, unsigned int freq, int dir)
 | |
| {
 | |
| 	struct aic23 *aic23 = snd_soc_dai_get_drvdata(codec_dai);
 | |
| 	aic23->mclk = freq;
 | |
| 	return 0;
 | |
| }
 | |
| 
 | |
| static int tlv320aic23_set_bias_level(struct snd_soc_component *component,
 | |
| 				      enum snd_soc_bias_level level)
 | |
| {
 | |
| 	u16 reg = snd_soc_component_read(component, TLV320AIC23_PWR) & 0x17f;
 | |
| 
 | |
| 	switch (level) {
 | |
| 	case SND_SOC_BIAS_ON:
 | |
| 		/* vref/mid, osc on, dac unmute */
 | |
| 		reg &= ~(TLV320AIC23_DEVICE_PWR_OFF | TLV320AIC23_OSC_OFF | \
 | |
| 			TLV320AIC23_DAC_OFF);
 | |
| 		snd_soc_component_write(component, TLV320AIC23_PWR, reg);
 | |
| 		break;
 | |
| 	case SND_SOC_BIAS_PREPARE:
 | |
| 		break;
 | |
| 	case SND_SOC_BIAS_STANDBY:
 | |
| 		/* everything off except vref/vmid, */
 | |
| 		snd_soc_component_write(component, TLV320AIC23_PWR,
 | |
| 			      reg | TLV320AIC23_CLK_OFF);
 | |
| 		break;
 | |
| 	case SND_SOC_BIAS_OFF:
 | |
| 		/* everything off, dac mute, inactive */
 | |
| 		snd_soc_component_write(component, TLV320AIC23_ACTIVE, 0x0);
 | |
| 		snd_soc_component_write(component, TLV320AIC23_PWR, 0x1ff);
 | |
| 		break;
 | |
| 	}
 | |
| 	return 0;
 | |
| }
 | |
| 
 | |
| #define AIC23_RATES	SNDRV_PCM_RATE_8000_96000
 | |
| #define AIC23_FORMATS	(SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE | \
 | |
| 			 SNDRV_PCM_FMTBIT_S24_3LE | SNDRV_PCM_FMTBIT_S32_LE)
 | |
| 
 | |
| static const struct snd_soc_dai_ops tlv320aic23_dai_ops = {
 | |
| 	.prepare	= tlv320aic23_pcm_prepare,
 | |
| 	.hw_params	= tlv320aic23_hw_params,
 | |
| 	.shutdown	= tlv320aic23_shutdown,
 | |
| 	.mute_stream	= tlv320aic23_mute,
 | |
| 	.set_fmt	= tlv320aic23_set_dai_fmt,
 | |
| 	.set_sysclk	= tlv320aic23_set_dai_sysclk,
 | |
| 	.no_capture_mute = 1,
 | |
| };
 | |
| 
 | |
| static struct snd_soc_dai_driver tlv320aic23_dai = {
 | |
| 	.name = "tlv320aic23-hifi",
 | |
| 	.playback = {
 | |
| 		     .stream_name = "Playback",
 | |
| 		     .channels_min = 2,
 | |
| 		     .channels_max = 2,
 | |
| 		     .rates = AIC23_RATES,
 | |
| 		     .formats = AIC23_FORMATS,},
 | |
| 	.capture = {
 | |
| 		    .stream_name = "Capture",
 | |
| 		    .channels_min = 2,
 | |
| 		    .channels_max = 2,
 | |
| 		    .rates = AIC23_RATES,
 | |
| 		    .formats = AIC23_FORMATS,},
 | |
| 	.ops = &tlv320aic23_dai_ops,
 | |
| };
 | |
| 
 | |
| static int tlv320aic23_resume(struct snd_soc_component *component)
 | |
| {
 | |
| 	struct aic23 *aic23 = snd_soc_component_get_drvdata(component);
 | |
| 	regcache_mark_dirty(aic23->regmap);
 | |
| 	regcache_sync(aic23->regmap);
 | |
| 
 | |
| 	return 0;
 | |
| }
 | |
| 
 | |
| static int tlv320aic23_component_probe(struct snd_soc_component *component)
 | |
| {
 | |
| 	/* Reset codec */
 | |
| 	snd_soc_component_write(component, TLV320AIC23_RESET, 0);
 | |
| 
 | |
| 	snd_soc_component_write(component, TLV320AIC23_DIGT, TLV320AIC23_DEEMP_44K);
 | |
| 
 | |
| 	/* Unmute input */
 | |
| 	snd_soc_component_update_bits(component, TLV320AIC23_LINVOL,
 | |
| 			    TLV320AIC23_LIM_MUTED, TLV320AIC23_LRS_ENABLED);
 | |
| 
 | |
| 	snd_soc_component_update_bits(component, TLV320AIC23_RINVOL,
 | |
| 			    TLV320AIC23_LIM_MUTED, TLV320AIC23_LRS_ENABLED);
 | |
| 
 | |
| 	snd_soc_component_update_bits(component, TLV320AIC23_ANLG,
 | |
| 			    TLV320AIC23_BYPASS_ON | TLV320AIC23_MICM_MUTED,
 | |
| 			    0);
 | |
| 
 | |
| 	/* Default output volume */
 | |
| 	snd_soc_component_write(component, TLV320AIC23_LCHNVOL,
 | |
| 		      TLV320AIC23_DEFAULT_OUT_VOL & TLV320AIC23_OUT_VOL_MASK);
 | |
| 	snd_soc_component_write(component, TLV320AIC23_RCHNVOL,
 | |
| 		      TLV320AIC23_DEFAULT_OUT_VOL & TLV320AIC23_OUT_VOL_MASK);
 | |
| 
 | |
| 	snd_soc_component_write(component, TLV320AIC23_ACTIVE, 0x1);
 | |
| 
 | |
| 	return 0;
 | |
| }
 | |
| 
 | |
| static const struct snd_soc_component_driver soc_component_dev_tlv320aic23 = {
 | |
| 	.probe			= tlv320aic23_component_probe,
 | |
| 	.resume			= tlv320aic23_resume,
 | |
| 	.set_bias_level		= tlv320aic23_set_bias_level,
 | |
| 	.controls		= tlv320aic23_snd_controls,
 | |
| 	.num_controls		= ARRAY_SIZE(tlv320aic23_snd_controls),
 | |
| 	.dapm_widgets		= tlv320aic23_dapm_widgets,
 | |
| 	.num_dapm_widgets	= ARRAY_SIZE(tlv320aic23_dapm_widgets),
 | |
| 	.dapm_routes		= tlv320aic23_intercon,
 | |
| 	.num_dapm_routes	= ARRAY_SIZE(tlv320aic23_intercon),
 | |
| 	.suspend_bias_off	= 1,
 | |
| 	.idle_bias_on		= 1,
 | |
| 	.use_pmdown_time	= 1,
 | |
| 	.endianness		= 1,
 | |
| };
 | |
| 
 | |
| int tlv320aic23_probe(struct device *dev, struct regmap *regmap)
 | |
| {
 | |
| 	struct aic23 *aic23;
 | |
| 
 | |
| 	if (IS_ERR(regmap))
 | |
| 		return PTR_ERR(regmap);
 | |
| 
 | |
| 	aic23 = devm_kzalloc(dev, sizeof(struct aic23), GFP_KERNEL);
 | |
| 	if (aic23 == NULL)
 | |
| 		return -ENOMEM;
 | |
| 
 | |
| 	aic23->regmap = regmap;
 | |
| 
 | |
| 	dev_set_drvdata(dev, aic23);
 | |
| 
 | |
| 	return devm_snd_soc_register_component(dev,
 | |
| 				      &soc_component_dev_tlv320aic23,
 | |
| 				      &tlv320aic23_dai, 1);
 | |
| }
 | |
| EXPORT_SYMBOL(tlv320aic23_probe);
 | |
| 
 | |
| MODULE_DESCRIPTION("ASoC TLV320AIC23 codec driver");
 | |
| MODULE_AUTHOR("Arun KS <arunks@mistralsolutions.com>");
 | |
| MODULE_LICENSE("GPL");
 |