1c1f27190SArun KS /* 2c1f27190SArun KS * ALSA SoC TLV320AIC23 codec driver 3c1f27190SArun KS * 4c1f27190SArun KS * Author: Arun KS, <arunks@mistralsolutions.com> 5c1f27190SArun KS * Copyright: (C) 2008 Mistral Solutions Pvt Ltd., 6c1f27190SArun KS * 7c1f27190SArun KS * Based on sound/soc/codecs/wm8731.c by Richard Purdie 8c1f27190SArun KS * 9c1f27190SArun KS * This program is free software; you can redistribute it and/or modify 10c1f27190SArun KS * it under the terms of the GNU General Public License version 2 as 11c1f27190SArun KS * published by the Free Software Foundation. 12c1f27190SArun KS * 13c1f27190SArun KS * Notes: 14c1f27190SArun KS * The AIC23 is a driver for a low power stereo audio 15c1f27190SArun KS * codec tlv320aic23 16c1f27190SArun KS * 17c1f27190SArun KS * The machine layer should disable unsupported inputs/outputs by 18c1f27190SArun KS * snd_soc_dapm_disable_pin(codec, "LHPOUT"), etc. 19c1f27190SArun KS */ 20c1f27190SArun KS 21c1f27190SArun KS #include <linux/module.h> 22c1f27190SArun KS #include <linux/moduleparam.h> 23c1f27190SArun KS #include <linux/init.h> 24c1f27190SArun KS #include <linux/delay.h> 25c1f27190SArun KS #include <linux/pm.h> 26c1f27190SArun KS #include <linux/i2c.h> 27c1f27190SArun KS #include <linux/platform_device.h> 28c1f27190SArun KS #include <sound/core.h> 29c1f27190SArun KS #include <sound/pcm.h> 30c1f27190SArun KS #include <sound/pcm_params.h> 31c1f27190SArun KS #include <sound/soc.h> 32c1f27190SArun KS #include <sound/soc-dapm.h> 33c1f27190SArun KS #include <sound/tlv.h> 34c1f27190SArun KS #include <sound/initval.h> 35c1f27190SArun KS 36c1f27190SArun KS #include "tlv320aic23.h" 37c1f27190SArun KS 38c1f27190SArun KS #define AIC23_VERSION "0.1" 39c1f27190SArun KS 40c1f27190SArun KS /* 41c1f27190SArun KS * AIC23 register cache 42c1f27190SArun KS */ 43c1f27190SArun KS static const u16 tlv320aic23_reg[] = { 44c1f27190SArun KS 0x0097, 0x0097, 0x00F9, 0x00F9, /* 0 */ 45c1f27190SArun KS 0x001A, 0x0004, 0x0007, 0x0001, /* 4 */ 46c1f27190SArun KS 0x0020, 0x0000, 0x0000, 0x0000, /* 8 */ 47c1f27190SArun KS 0x0000, 0x0000, 0x0000, 0x0000, /* 12 */ 48c1f27190SArun KS }; 49c1f27190SArun KS 50c1f27190SArun KS /* 51c1f27190SArun KS * read tlv320aic23 register cache 52c1f27190SArun KS */ 53c1f27190SArun KS static inline unsigned int tlv320aic23_read_reg_cache(struct snd_soc_codec 54c1f27190SArun KS *codec, unsigned int reg) 55c1f27190SArun KS { 56c1f27190SArun KS u16 *cache = codec->reg_cache; 57c1f27190SArun KS if (reg >= ARRAY_SIZE(tlv320aic23_reg)) 58c1f27190SArun KS return -1; 59c1f27190SArun KS return cache[reg]; 60c1f27190SArun KS } 61c1f27190SArun KS 62c1f27190SArun KS /* 63c1f27190SArun KS * write tlv320aic23 register cache 64c1f27190SArun KS */ 65c1f27190SArun KS static inline void tlv320aic23_write_reg_cache(struct snd_soc_codec *codec, 66c1f27190SArun KS u8 reg, u16 value) 67c1f27190SArun KS { 68c1f27190SArun KS u16 *cache = codec->reg_cache; 69c1f27190SArun KS if (reg >= ARRAY_SIZE(tlv320aic23_reg)) 70c1f27190SArun KS return; 71c1f27190SArun KS cache[reg] = value; 72c1f27190SArun KS } 73c1f27190SArun KS 74c1f27190SArun KS /* 75c1f27190SArun KS * write to the tlv320aic23 register space 76c1f27190SArun KS */ 77c1f27190SArun KS static int tlv320aic23_write(struct snd_soc_codec *codec, unsigned int reg, 78c1f27190SArun KS unsigned int value) 79c1f27190SArun KS { 80c1f27190SArun KS 814aa02396SArun KS u8 data[2]; 82c1f27190SArun KS 83c1f27190SArun KS /* TLV320AIC23 has 7 bit address and 9 bits of data 84c1f27190SArun KS * so we need to switch one data bit into reg and rest 85c1f27190SArun KS * of data into val 86c1f27190SArun KS */ 87c1f27190SArun KS 88c1f27190SArun KS if ((reg < 0 || reg > 9) && (reg != 15)) { 89c1f27190SArun KS printk(KERN_WARNING "%s Invalid register R%d\n", __func__, reg); 90c1f27190SArun KS return -1; 91c1f27190SArun KS } 92c1f27190SArun KS 934aa02396SArun KS data[0] = (reg << 1) | (value >> 8 & 0x01); 944aa02396SArun KS data[1] = value & 0xff; 95c1f27190SArun KS 96c1f27190SArun KS tlv320aic23_write_reg_cache(codec, reg, value); 97c1f27190SArun KS 984aa02396SArun KS if (codec->hw_write(codec->control_data, data, 2) == 2) 99c1f27190SArun KS return 0; 100c1f27190SArun KS 101c1f27190SArun KS printk(KERN_ERR "%s cannot write %03x to register R%d\n", __func__, 102c1f27190SArun KS value, reg); 103c1f27190SArun KS 104c1f27190SArun KS return -EIO; 105c1f27190SArun KS } 106c1f27190SArun KS 107c1f27190SArun KS static const char *rec_src_text[] = { "Line", "Mic" }; 108c1f27190SArun KS static const char *deemph_text[] = {"None", "32Khz", "44.1Khz", "48Khz"}; 109c1f27190SArun KS 110c1f27190SArun KS static const struct soc_enum rec_src_enum = 111c1f27190SArun KS SOC_ENUM_SINGLE(TLV320AIC23_ANLG, 2, 2, rec_src_text); 112c1f27190SArun KS 113c1f27190SArun KS static const struct snd_kcontrol_new tlv320aic23_rec_src_mux_controls = 114c1f27190SArun KS SOC_DAPM_ENUM("Input Select", rec_src_enum); 115c1f27190SArun KS 116c1f27190SArun KS static const struct soc_enum tlv320aic23_rec_src = 117c1f27190SArun KS SOC_ENUM_SINGLE(TLV320AIC23_ANLG, 2, 2, rec_src_text); 118c1f27190SArun KS static const struct soc_enum tlv320aic23_deemph = 119c1f27190SArun KS SOC_ENUM_SINGLE(TLV320AIC23_DIGT, 1, 4, deemph_text); 120c1f27190SArun KS 121c1f27190SArun KS static const DECLARE_TLV_DB_SCALE(out_gain_tlv, -12100, 100, 0); 122c1f27190SArun KS static const DECLARE_TLV_DB_SCALE(input_gain_tlv, -1725, 75, 0); 123df91ddf1SArun KS static const DECLARE_TLV_DB_SCALE(sidetone_vol_tlv, -1800, 300, 0); 124df91ddf1SArun KS 125df91ddf1SArun KS static int snd_soc_tlv320aic23_put_volsw(struct snd_kcontrol *kcontrol, 126df91ddf1SArun KS struct snd_ctl_elem_value *ucontrol) 127df91ddf1SArun KS { 128df91ddf1SArun KS struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); 129df91ddf1SArun KS u16 val, reg; 130df91ddf1SArun KS 131df91ddf1SArun KS val = (ucontrol->value.integer.value[0] & 0x07); 132df91ddf1SArun KS 133df91ddf1SArun KS /* linear conversion to userspace 134df91ddf1SArun KS * 000 = -6db 135df91ddf1SArun KS * 001 = -9db 136df91ddf1SArun KS * 010 = -12db 137df91ddf1SArun KS * 011 = -18db (Min) 138df91ddf1SArun KS * 100 = 0db (Max) 139df91ddf1SArun KS */ 140df91ddf1SArun KS val = (val >= 4) ? 4 : (3 - val); 141df91ddf1SArun KS 142df91ddf1SArun KS reg = tlv320aic23_read_reg_cache(codec, TLV320AIC23_ANLG) & (~0x1C0); 143df91ddf1SArun KS tlv320aic23_write(codec, TLV320AIC23_ANLG, reg | (val << 6)); 144df91ddf1SArun KS 145df91ddf1SArun KS return 0; 146df91ddf1SArun KS } 147df91ddf1SArun KS 148df91ddf1SArun KS static int snd_soc_tlv320aic23_get_volsw(struct snd_kcontrol *kcontrol, 149df91ddf1SArun KS struct snd_ctl_elem_value *ucontrol) 150df91ddf1SArun KS { 151df91ddf1SArun KS struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); 152df91ddf1SArun KS u16 val; 153df91ddf1SArun KS 154df91ddf1SArun KS val = tlv320aic23_read_reg_cache(codec, TLV320AIC23_ANLG) & (0x1C0); 155df91ddf1SArun KS val = val >> 6; 156df91ddf1SArun KS val = (val >= 4) ? 4 : (3 - val); 157df91ddf1SArun KS ucontrol->value.integer.value[0] = val; 158df91ddf1SArun KS return 0; 159df91ddf1SArun KS 160df91ddf1SArun KS } 161df91ddf1SArun KS 162df91ddf1SArun KS #define SOC_TLV320AIC23_SINGLE_TLV(xname, reg, shift, max, invert, tlv_array) \ 163df91ddf1SArun KS { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \ 164df91ddf1SArun KS .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ |\ 165df91ddf1SArun KS SNDRV_CTL_ELEM_ACCESS_READWRITE,\ 166df91ddf1SArun KS .tlv.p = (tlv_array), \ 167df91ddf1SArun KS .info = snd_soc_info_volsw, .get = snd_soc_tlv320aic23_get_volsw,\ 168df91ddf1SArun KS .put = snd_soc_tlv320aic23_put_volsw, \ 169df91ddf1SArun KS .private_value = SOC_SINGLE_VALUE(reg, shift, max, invert) } 170c1f27190SArun KS 171c1f27190SArun KS static const struct snd_kcontrol_new tlv320aic23_snd_controls[] = { 172c1f27190SArun KS SOC_DOUBLE_R_TLV("Digital Playback Volume", TLV320AIC23_LCHNVOL, 173c1f27190SArun KS TLV320AIC23_RCHNVOL, 0, 127, 0, out_gain_tlv), 174c1f27190SArun KS SOC_SINGLE("Digital Playback Switch", TLV320AIC23_DIGT, 3, 1, 1), 175c1f27190SArun KS SOC_DOUBLE_R("Line Input Switch", TLV320AIC23_LINVOL, 176c1f27190SArun KS TLV320AIC23_RINVOL, 7, 1, 0), 177c1f27190SArun KS SOC_DOUBLE_R_TLV("Line Input Volume", TLV320AIC23_LINVOL, 178c1f27190SArun KS TLV320AIC23_RINVOL, 0, 31, 0, input_gain_tlv), 179c1f27190SArun KS SOC_SINGLE("Mic Input Switch", TLV320AIC23_ANLG, 1, 1, 1), 180c1f27190SArun KS SOC_SINGLE("Mic Booster Switch", TLV320AIC23_ANLG, 0, 1, 0), 181df91ddf1SArun KS SOC_TLV320AIC23_SINGLE_TLV("Sidetone Volume", TLV320AIC23_ANLG, 182df91ddf1SArun KS 6, 4, 0, sidetone_vol_tlv), 183c1f27190SArun KS SOC_ENUM("Playback De-emphasis", tlv320aic23_deemph), 184c1f27190SArun KS }; 185c1f27190SArun KS 186c1f27190SArun KS /* add non dapm controls */ 187c1f27190SArun KS static int tlv320aic23_add_controls(struct snd_soc_codec *codec) 188c1f27190SArun KS { 189c1f27190SArun KS 190c1f27190SArun KS int err, i; 191c1f27190SArun KS 192c1f27190SArun KS for (i = 0; i < ARRAY_SIZE(tlv320aic23_snd_controls); i++) { 193c1f27190SArun KS err = snd_ctl_add(codec->card, 194c1f27190SArun KS snd_soc_cnew(&tlv320aic23_snd_controls[i], 195c1f27190SArun KS codec, NULL)); 196c1f27190SArun KS if (err < 0) 197c1f27190SArun KS return err; 198c1f27190SArun KS } 199c1f27190SArun KS 200c1f27190SArun KS return 0; 201c1f27190SArun KS 202c1f27190SArun KS } 203c1f27190SArun KS 204c1f27190SArun KS /* PGA Mixer controls for Line and Mic switch */ 205c1f27190SArun KS static const struct snd_kcontrol_new tlv320aic23_output_mixer_controls[] = { 206c1f27190SArun KS SOC_DAPM_SINGLE("Line Bypass Switch", TLV320AIC23_ANLG, 3, 1, 0), 207c1f27190SArun KS SOC_DAPM_SINGLE("Mic Sidetone Switch", TLV320AIC23_ANLG, 5, 1, 0), 208c1f27190SArun KS SOC_DAPM_SINGLE("Playback Switch", TLV320AIC23_ANLG, 4, 1, 0), 209c1f27190SArun KS }; 210c1f27190SArun KS 211c1f27190SArun KS static const struct snd_soc_dapm_widget tlv320aic23_dapm_widgets[] = { 212c1f27190SArun KS SND_SOC_DAPM_DAC("DAC", "Playback", TLV320AIC23_PWR, 3, 1), 213c1f27190SArun KS SND_SOC_DAPM_ADC("ADC", "Capture", TLV320AIC23_PWR, 2, 1), 214c1f27190SArun KS SND_SOC_DAPM_MUX("Capture Source", SND_SOC_NOPM, 0, 0, 215c1f27190SArun KS &tlv320aic23_rec_src_mux_controls), 216c1f27190SArun KS SND_SOC_DAPM_MIXER("Output Mixer", TLV320AIC23_PWR, 4, 1, 217c1f27190SArun KS &tlv320aic23_output_mixer_controls[0], 218c1f27190SArun KS ARRAY_SIZE(tlv320aic23_output_mixer_controls)), 219c1f27190SArun KS SND_SOC_DAPM_PGA("Line Input", TLV320AIC23_PWR, 0, 1, NULL, 0), 220c1f27190SArun KS SND_SOC_DAPM_PGA("Mic Input", TLV320AIC23_PWR, 1, 1, NULL, 0), 221c1f27190SArun KS 222c1f27190SArun KS SND_SOC_DAPM_OUTPUT("LHPOUT"), 223c1f27190SArun KS SND_SOC_DAPM_OUTPUT("RHPOUT"), 224c1f27190SArun KS SND_SOC_DAPM_OUTPUT("LOUT"), 225c1f27190SArun KS SND_SOC_DAPM_OUTPUT("ROUT"), 226c1f27190SArun KS 227c1f27190SArun KS SND_SOC_DAPM_INPUT("LLINEIN"), 228c1f27190SArun KS SND_SOC_DAPM_INPUT("RLINEIN"), 229c1f27190SArun KS 230c1f27190SArun KS SND_SOC_DAPM_INPUT("MICIN"), 231c1f27190SArun KS }; 232c1f27190SArun KS 233c1f27190SArun KS static const struct snd_soc_dapm_route intercon[] = { 234c1f27190SArun KS /* Output Mixer */ 235c1f27190SArun KS {"Output Mixer", "Line Bypass Switch", "Line Input"}, 236c1f27190SArun KS {"Output Mixer", "Playback Switch", "DAC"}, 237c1f27190SArun KS {"Output Mixer", "Mic Sidetone Switch", "Mic Input"}, 238c1f27190SArun KS 239c1f27190SArun KS /* Outputs */ 240c1f27190SArun KS {"RHPOUT", NULL, "Output Mixer"}, 241c1f27190SArun KS {"LHPOUT", NULL, "Output Mixer"}, 242c1f27190SArun KS {"LOUT", NULL, "Output Mixer"}, 243c1f27190SArun KS {"ROUT", NULL, "Output Mixer"}, 244c1f27190SArun KS 245c1f27190SArun KS /* Inputs */ 246c1f27190SArun KS {"Line Input", "NULL", "LLINEIN"}, 247c1f27190SArun KS {"Line Input", "NULL", "RLINEIN"}, 248c1f27190SArun KS 249c1f27190SArun KS {"Mic Input", "NULL", "MICIN"}, 250c1f27190SArun KS 251c1f27190SArun KS /* input mux */ 252c1f27190SArun KS {"Capture Source", "Line", "Line Input"}, 253c1f27190SArun KS {"Capture Source", "Mic", "Mic Input"}, 254c1f27190SArun KS {"ADC", NULL, "Capture Source"}, 255c1f27190SArun KS 256c1f27190SArun KS }; 257c1f27190SArun KS 25826df91c3STroy Kisky /* AIC23 driver data */ 25926df91c3STroy Kisky struct aic23 { 26026df91c3STroy Kisky struct snd_soc_codec codec; 26126df91c3STroy Kisky int mclk; 26226df91c3STroy Kisky int requested_adc; 26326df91c3STroy Kisky int requested_dac; 264c1f27190SArun KS }; 265c1f27190SArun KS 26626df91c3STroy Kisky /* 26726df91c3STroy Kisky * Common Crystals used 26826df91c3STroy Kisky * 11.2896 Mhz /128 = *88.2k /192 = 58.8k 26926df91c3STroy Kisky * 12.0000 Mhz /125 = *96k /136 = 88.235K 27026df91c3STroy Kisky * 12.2880 Mhz /128 = *96k /192 = 64k 27126df91c3STroy Kisky * 16.9344 Mhz /128 = 132.3k /192 = *88.2k 27226df91c3STroy Kisky * 18.4320 Mhz /128 = 144k /192 = *96k 27326df91c3STroy Kisky */ 27426df91c3STroy Kisky 27526df91c3STroy Kisky /* 27626df91c3STroy Kisky * Normal BOSR 0-256/2 = 128, 1-384/2 = 192 27726df91c3STroy Kisky * USB BOSR 0-250/2 = 125, 1-272/2 = 136 27826df91c3STroy Kisky */ 27926df91c3STroy Kisky static const int bosr_usb_divisor_table[] = { 28026df91c3STroy Kisky 128, 125, 192, 136 28126df91c3STroy Kisky }; 28226df91c3STroy Kisky #define LOWER_GROUP ((1<<0) | (1<<1) | (1<<2) | (1<<3) | (1<<6) | (1<<7)) 28326df91c3STroy Kisky #define UPPER_GROUP ((1<<8) | (1<<9) | (1<<10) | (1<<11) | (1<<15)) 28426df91c3STroy Kisky static const unsigned short sr_valid_mask[] = { 28526df91c3STroy Kisky LOWER_GROUP|UPPER_GROUP, /* Normal, bosr - 0*/ 28626df91c3STroy Kisky LOWER_GROUP|UPPER_GROUP, /* Normal, bosr - 1*/ 28726df91c3STroy Kisky LOWER_GROUP, /* Usb, bosr - 0*/ 28826df91c3STroy Kisky UPPER_GROUP, /* Usb, bosr - 1*/ 28926df91c3STroy Kisky }; 29026df91c3STroy Kisky /* 29126df91c3STroy Kisky * Every divisor is a factor of 11*12 29226df91c3STroy Kisky */ 29326df91c3STroy Kisky #define SR_MULT (11*12) 29426df91c3STroy Kisky #define A(x) (x) ? (SR_MULT/x) : 0 29526df91c3STroy Kisky static const unsigned char sr_adc_mult_table[] = { 29626df91c3STroy Kisky A(2), A(2), A(12), A(12), A(0), A(0), A(3), A(1), 29726df91c3STroy Kisky A(2), A(2), A(11), A(11), A(0), A(0), A(0), A(1) 29826df91c3STroy Kisky }; 29926df91c3STroy Kisky static const unsigned char sr_dac_mult_table[] = { 30026df91c3STroy Kisky A(2), A(12), A(2), A(12), A(0), A(0), A(3), A(1), 30126df91c3STroy Kisky A(2), A(11), A(2), A(11), A(0), A(0), A(0), A(1) 30226df91c3STroy Kisky }; 30326df91c3STroy Kisky 30426df91c3STroy Kisky static unsigned get_score(int adc, int adc_l, int adc_h, int need_adc, 30526df91c3STroy Kisky int dac, int dac_l, int dac_h, int need_dac) 30626df91c3STroy Kisky { 30726df91c3STroy Kisky if ((adc >= adc_l) && (adc <= adc_h) && 30826df91c3STroy Kisky (dac >= dac_l) && (dac <= dac_h)) { 30926df91c3STroy Kisky int diff_adc = need_adc - adc; 31026df91c3STroy Kisky int diff_dac = need_dac - dac; 31126df91c3STroy Kisky return abs(diff_adc) + abs(diff_dac); 31226df91c3STroy Kisky } 31326df91c3STroy Kisky return UINT_MAX; 31426df91c3STroy Kisky } 31526df91c3STroy Kisky 31626df91c3STroy Kisky static int find_rate(int mclk, u32 need_adc, u32 need_dac) 31726df91c3STroy Kisky { 31826df91c3STroy Kisky int i, j; 31926df91c3STroy Kisky int best_i = -1; 32026df91c3STroy Kisky int best_j = -1; 32126df91c3STroy Kisky int best_div = 0; 32226df91c3STroy Kisky unsigned best_score = UINT_MAX; 32326df91c3STroy Kisky int adc_l, adc_h, dac_l, dac_h; 32426df91c3STroy Kisky 32526df91c3STroy Kisky need_adc *= SR_MULT; 32626df91c3STroy Kisky need_dac *= SR_MULT; 32726df91c3STroy Kisky /* 32826df91c3STroy Kisky * rates given are +/- 1/32 32926df91c3STroy Kisky */ 33026df91c3STroy Kisky adc_l = need_adc - (need_adc >> 5); 33126df91c3STroy Kisky adc_h = need_adc + (need_adc >> 5); 33226df91c3STroy Kisky dac_l = need_dac - (need_dac >> 5); 33326df91c3STroy Kisky dac_h = need_dac + (need_dac >> 5); 3348d702f23SMark Brown for (i = 0; i < ARRAY_SIZE(bosr_usb_divisor_table); i++) { 33526df91c3STroy Kisky int base = mclk / bosr_usb_divisor_table[i]; 33626df91c3STroy Kisky int mask = sr_valid_mask[i]; 3378d702f23SMark Brown for (j = 0; j < ARRAY_SIZE(sr_adc_mult_table); 3388d702f23SMark Brown j++, mask >>= 1) { 33926df91c3STroy Kisky int adc; 34026df91c3STroy Kisky int dac; 34126df91c3STroy Kisky int score; 34226df91c3STroy Kisky if ((mask & 1) == 0) 34326df91c3STroy Kisky continue; 34426df91c3STroy Kisky adc = base * sr_adc_mult_table[j]; 34526df91c3STroy Kisky dac = base * sr_dac_mult_table[j]; 34626df91c3STroy Kisky score = get_score(adc, adc_l, adc_h, need_adc, 34726df91c3STroy Kisky dac, dac_l, dac_h, need_dac); 34826df91c3STroy Kisky if (best_score > score) { 34926df91c3STroy Kisky best_score = score; 35026df91c3STroy Kisky best_i = i; 35126df91c3STroy Kisky best_j = j; 35226df91c3STroy Kisky best_div = 0; 35326df91c3STroy Kisky } 35426df91c3STroy Kisky score = get_score((adc >> 1), adc_l, adc_h, need_adc, 35526df91c3STroy Kisky (dac >> 1), dac_l, dac_h, need_dac); 35626df91c3STroy Kisky /* prefer to have a /2 */ 35726df91c3STroy Kisky if ((score != UINT_MAX) && (best_score >= score)) { 35826df91c3STroy Kisky best_score = score; 35926df91c3STroy Kisky best_i = i; 36026df91c3STroy Kisky best_j = j; 36126df91c3STroy Kisky best_div = 1; 36226df91c3STroy Kisky } 36326df91c3STroy Kisky } 36426df91c3STroy Kisky } 36526df91c3STroy Kisky return (best_j << 2) | best_i | (best_div << TLV320AIC23_CLKIN_SHIFT); 36626df91c3STroy Kisky } 36726df91c3STroy Kisky 3688d702f23SMark Brown #ifdef DEBUG 36926df91c3STroy Kisky static void get_current_sample_rates(struct snd_soc_codec *codec, int mclk, 37026df91c3STroy Kisky u32 *sample_rate_adc, u32 *sample_rate_dac) 37126df91c3STroy Kisky { 37226df91c3STroy Kisky int src = tlv320aic23_read_reg_cache(codec, TLV320AIC23_SRATE); 37326df91c3STroy Kisky int sr = (src >> 2) & 0x0f; 37426df91c3STroy Kisky int val = (mclk / bosr_usb_divisor_table[src & 3]); 37526df91c3STroy Kisky int adc = (val * sr_adc_mult_table[sr]) / SR_MULT; 37626df91c3STroy Kisky int dac = (val * sr_dac_mult_table[sr]) / SR_MULT; 37726df91c3STroy Kisky if (src & TLV320AIC23_CLKIN_HALF) { 37826df91c3STroy Kisky adc >>= 1; 37926df91c3STroy Kisky dac >>= 1; 38026df91c3STroy Kisky } 38126df91c3STroy Kisky *sample_rate_adc = adc; 38226df91c3STroy Kisky *sample_rate_dac = dac; 38326df91c3STroy Kisky } 3848d702f23SMark Brown #endif 38526df91c3STroy Kisky 38626df91c3STroy Kisky static int set_sample_rate_control(struct snd_soc_codec *codec, int mclk, 38726df91c3STroy Kisky u32 sample_rate_adc, u32 sample_rate_dac) 38826df91c3STroy Kisky { 38926df91c3STroy Kisky /* Search for the right sample rate */ 39026df91c3STroy Kisky int data = find_rate(mclk, sample_rate_adc, sample_rate_dac); 39126df91c3STroy Kisky if (data < 0) { 39226df91c3STroy Kisky printk(KERN_ERR "%s:Invalid rate %u,%u requested\n", 39326df91c3STroy Kisky __func__, sample_rate_adc, sample_rate_dac); 39426df91c3STroy Kisky return -EINVAL; 39526df91c3STroy Kisky } 39626df91c3STroy Kisky tlv320aic23_write(codec, TLV320AIC23_SRATE, data); 3978d702f23SMark Brown #ifdef DEBUG 3988d702f23SMark Brown { 3998d702f23SMark Brown u32 adc, dac; 40026df91c3STroy Kisky get_current_sample_rates(codec, mclk, &adc, &dac); 40126df91c3STroy Kisky printk(KERN_DEBUG "actual samplerate = %u,%u reg=%x\n", 40226df91c3STroy Kisky adc, dac, data); 40326df91c3STroy Kisky } 4048d702f23SMark Brown #endif 40526df91c3STroy Kisky return 0; 40626df91c3STroy Kisky } 40726df91c3STroy Kisky 408c1f27190SArun KS static int tlv320aic23_add_widgets(struct snd_soc_codec *codec) 409c1f27190SArun KS { 410c1f27190SArun KS snd_soc_dapm_new_controls(codec, tlv320aic23_dapm_widgets, 411c1f27190SArun KS ARRAY_SIZE(tlv320aic23_dapm_widgets)); 412c1f27190SArun KS 413c1f27190SArun KS /* set up audio path interconnects */ 414c1f27190SArun KS snd_soc_dapm_add_routes(codec, intercon, ARRAY_SIZE(intercon)); 415c1f27190SArun KS 416c1f27190SArun KS snd_soc_dapm_new_widgets(codec); 417c1f27190SArun KS return 0; 418c1f27190SArun KS } 419c1f27190SArun KS 420c1f27190SArun KS static int tlv320aic23_hw_params(struct snd_pcm_substream *substream, 421dee89c4dSMark Brown struct snd_pcm_hw_params *params, 422dee89c4dSMark Brown struct snd_soc_dai *dai) 423c1f27190SArun KS { 424c1f27190SArun KS struct snd_soc_pcm_runtime *rtd = substream->private_data; 425c1f27190SArun KS struct snd_soc_device *socdev = rtd->socdev; 426c1f27190SArun KS struct snd_soc_codec *codec = socdev->codec; 42726df91c3STroy Kisky u16 iface_reg; 42826df91c3STroy Kisky int ret; 42926df91c3STroy Kisky struct aic23 *aic23 = container_of(codec, struct aic23, codec); 43026df91c3STroy Kisky u32 sample_rate_adc = aic23->requested_adc; 43126df91c3STroy Kisky u32 sample_rate_dac = aic23->requested_dac; 43226df91c3STroy Kisky u32 sample_rate = params_rate(params); 43326df91c3STroy Kisky 43426df91c3STroy Kisky if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { 43526df91c3STroy Kisky aic23->requested_dac = sample_rate_dac = sample_rate; 43626df91c3STroy Kisky if (!sample_rate_adc) 43726df91c3STroy Kisky sample_rate_adc = sample_rate; 43826df91c3STroy Kisky } else { 43926df91c3STroy Kisky aic23->requested_adc = sample_rate_adc = sample_rate; 44026df91c3STroy Kisky if (!sample_rate_dac) 44126df91c3STroy Kisky sample_rate_dac = sample_rate; 44226df91c3STroy Kisky } 44326df91c3STroy Kisky ret = set_sample_rate_control(codec, aic23->mclk, sample_rate_adc, 44426df91c3STroy Kisky sample_rate_dac); 44526df91c3STroy Kisky if (ret < 0) 44626df91c3STroy Kisky return ret; 447c1f27190SArun KS 448c1f27190SArun KS iface_reg = 449c1f27190SArun KS tlv320aic23_read_reg_cache(codec, 450c1f27190SArun KS TLV320AIC23_DIGT_FMT) & ~(0x03 << 2); 451c1f27190SArun KS switch (params_format(params)) { 452c1f27190SArun KS case SNDRV_PCM_FORMAT_S16_LE: 453c1f27190SArun KS break; 454c1f27190SArun KS case SNDRV_PCM_FORMAT_S20_3LE: 455c1f27190SArun KS iface_reg |= (0x01 << 2); 456c1f27190SArun KS break; 457c1f27190SArun KS case SNDRV_PCM_FORMAT_S24_LE: 458c1f27190SArun KS iface_reg |= (0x02 << 2); 459c1f27190SArun KS break; 460c1f27190SArun KS case SNDRV_PCM_FORMAT_S32_LE: 461c1f27190SArun KS iface_reg |= (0x03 << 2); 462c1f27190SArun KS break; 463c1f27190SArun KS } 464c1f27190SArun KS tlv320aic23_write(codec, TLV320AIC23_DIGT_FMT, iface_reg); 465c1f27190SArun KS 466c1f27190SArun KS return 0; 467c1f27190SArun KS } 468c1f27190SArun KS 469dee89c4dSMark Brown static int tlv320aic23_pcm_prepare(struct snd_pcm_substream *substream, 470dee89c4dSMark Brown struct snd_soc_dai *dai) 471c1f27190SArun KS { 472c1f27190SArun KS struct snd_soc_pcm_runtime *rtd = substream->private_data; 473c1f27190SArun KS struct snd_soc_device *socdev = rtd->socdev; 474c1f27190SArun KS struct snd_soc_codec *codec = socdev->codec; 475c1f27190SArun KS 476c1f27190SArun KS /* set active */ 477c1f27190SArun KS tlv320aic23_write(codec, TLV320AIC23_ACTIVE, 0x0001); 478c1f27190SArun KS 479c1f27190SArun KS return 0; 480c1f27190SArun KS } 481c1f27190SArun KS 482dee89c4dSMark Brown static void tlv320aic23_shutdown(struct snd_pcm_substream *substream, 483dee89c4dSMark Brown struct snd_soc_dai *dai) 484c1f27190SArun KS { 485c1f27190SArun KS struct snd_soc_pcm_runtime *rtd = substream->private_data; 486c1f27190SArun KS struct snd_soc_device *socdev = rtd->socdev; 487c1f27190SArun KS struct snd_soc_codec *codec = socdev->codec; 48826df91c3STroy Kisky struct aic23 *aic23 = container_of(codec, struct aic23, codec); 489c1f27190SArun KS 490c1f27190SArun KS /* deactivate */ 491c1f27190SArun KS if (!codec->active) { 492c1f27190SArun KS udelay(50); 493c1f27190SArun KS tlv320aic23_write(codec, TLV320AIC23_ACTIVE, 0x0); 494c1f27190SArun KS } 49526df91c3STroy Kisky if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) 49626df91c3STroy Kisky aic23->requested_dac = 0; 49726df91c3STroy Kisky else 49826df91c3STroy Kisky aic23->requested_adc = 0; 499c1f27190SArun KS } 500c1f27190SArun KS 501c1f27190SArun KS static int tlv320aic23_mute(struct snd_soc_dai *dai, int mute) 502c1f27190SArun KS { 503c1f27190SArun KS struct snd_soc_codec *codec = dai->codec; 504c1f27190SArun KS u16 reg; 505c1f27190SArun KS 506c1f27190SArun KS reg = tlv320aic23_read_reg_cache(codec, TLV320AIC23_DIGT); 507c1f27190SArun KS if (mute) 508c1f27190SArun KS reg |= TLV320AIC23_DACM_MUTE; 509c1f27190SArun KS 510c1f27190SArun KS else 511c1f27190SArun KS reg &= ~TLV320AIC23_DACM_MUTE; 512c1f27190SArun KS 513c1f27190SArun KS tlv320aic23_write(codec, TLV320AIC23_DIGT, reg); 514c1f27190SArun KS 515c1f27190SArun KS return 0; 516c1f27190SArun KS } 517c1f27190SArun KS 518c1f27190SArun KS static int tlv320aic23_set_dai_fmt(struct snd_soc_dai *codec_dai, 519c1f27190SArun KS unsigned int fmt) 520c1f27190SArun KS { 521c1f27190SArun KS struct snd_soc_codec *codec = codec_dai->codec; 522c1f27190SArun KS u16 iface_reg; 523c1f27190SArun KS 524c1f27190SArun KS iface_reg = 525c1f27190SArun KS tlv320aic23_read_reg_cache(codec, TLV320AIC23_DIGT_FMT) & (~0x03); 526c1f27190SArun KS 527c1f27190SArun KS /* set master/slave audio interface */ 528c1f27190SArun KS switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) { 529c1f27190SArun KS case SND_SOC_DAIFMT_CBM_CFM: 530c1f27190SArun KS iface_reg |= TLV320AIC23_MS_MASTER; 531c1f27190SArun KS break; 532c1f27190SArun KS case SND_SOC_DAIFMT_CBS_CFS: 533c1f27190SArun KS break; 534c1f27190SArun KS default: 535c1f27190SArun KS return -EINVAL; 536c1f27190SArun KS 537c1f27190SArun KS } 538c1f27190SArun KS 539c1f27190SArun KS /* interface format */ 540c1f27190SArun KS switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { 541c1f27190SArun KS case SND_SOC_DAIFMT_I2S: 542c1f27190SArun KS iface_reg |= TLV320AIC23_FOR_I2S; 543c1f27190SArun KS break; 544c1f27190SArun KS case SND_SOC_DAIFMT_DSP_A: 545c1f27190SArun KS iface_reg |= TLV320AIC23_FOR_DSP; 546c1f27190SArun KS break; 547c1f27190SArun KS case SND_SOC_DAIFMT_RIGHT_J: 548c1f27190SArun KS break; 549c1f27190SArun KS case SND_SOC_DAIFMT_LEFT_J: 550c1f27190SArun KS iface_reg |= TLV320AIC23_FOR_LJUST; 551c1f27190SArun KS break; 552c1f27190SArun KS default: 553c1f27190SArun KS return -EINVAL; 554c1f27190SArun KS 555c1f27190SArun KS } 556c1f27190SArun KS 557c1f27190SArun KS tlv320aic23_write(codec, TLV320AIC23_DIGT_FMT, iface_reg); 558c1f27190SArun KS 559c1f27190SArun KS return 0; 560c1f27190SArun KS } 561c1f27190SArun KS 562c1f27190SArun KS static int tlv320aic23_set_dai_sysclk(struct snd_soc_dai *codec_dai, 563c1f27190SArun KS int clk_id, unsigned int freq, int dir) 564c1f27190SArun KS { 565c1f27190SArun KS struct snd_soc_codec *codec = codec_dai->codec; 56626df91c3STroy Kisky struct aic23 *aic23 = container_of(codec, struct aic23, codec); 56726df91c3STroy Kisky aic23->mclk = freq; 568c1f27190SArun KS return 0; 569c1f27190SArun KS } 570c1f27190SArun KS 571c1f27190SArun KS static int tlv320aic23_set_bias_level(struct snd_soc_codec *codec, 572c1f27190SArun KS enum snd_soc_bias_level level) 573c1f27190SArun KS { 574c1f27190SArun KS u16 reg = tlv320aic23_read_reg_cache(codec, TLV320AIC23_PWR) & 0xff7f; 575c1f27190SArun KS 576c1f27190SArun KS switch (level) { 577c1f27190SArun KS case SND_SOC_BIAS_ON: 578c1f27190SArun KS /* vref/mid, osc on, dac unmute */ 579c1f27190SArun KS tlv320aic23_write(codec, TLV320AIC23_PWR, reg); 580c1f27190SArun KS break; 581c1f27190SArun KS case SND_SOC_BIAS_PREPARE: 582c1f27190SArun KS break; 583c1f27190SArun KS case SND_SOC_BIAS_STANDBY: 584c1f27190SArun KS /* everything off except vref/vmid, */ 585c1f27190SArun KS tlv320aic23_write(codec, TLV320AIC23_PWR, reg | 0x0040); 586c1f27190SArun KS break; 587c1f27190SArun KS case SND_SOC_BIAS_OFF: 588c1f27190SArun KS /* everything off, dac mute, inactive */ 589c1f27190SArun KS tlv320aic23_write(codec, TLV320AIC23_ACTIVE, 0x0); 590c1f27190SArun KS tlv320aic23_write(codec, TLV320AIC23_PWR, 0xffff); 591c1f27190SArun KS break; 592c1f27190SArun KS } 593c1f27190SArun KS codec->bias_level = level; 594c1f27190SArun KS return 0; 595c1f27190SArun KS } 596c1f27190SArun KS 597c1f27190SArun KS #define AIC23_RATES SNDRV_PCM_RATE_8000_96000 598c1f27190SArun KS #define AIC23_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE | \ 599c1f27190SArun KS SNDRV_PCM_FMTBIT_S24_3LE | SNDRV_PCM_FMTBIT_S32_LE) 600c1f27190SArun KS 601c1f27190SArun KS struct snd_soc_dai tlv320aic23_dai = { 602c1f27190SArun KS .name = "tlv320aic23", 603c1f27190SArun KS .playback = { 604c1f27190SArun KS .stream_name = "Playback", 605c1f27190SArun KS .channels_min = 2, 606c1f27190SArun KS .channels_max = 2, 607c1f27190SArun KS .rates = AIC23_RATES, 608c1f27190SArun KS .formats = AIC23_FORMATS,}, 609c1f27190SArun KS .capture = { 610c1f27190SArun KS .stream_name = "Capture", 611c1f27190SArun KS .channels_min = 2, 612c1f27190SArun KS .channels_max = 2, 613c1f27190SArun KS .rates = AIC23_RATES, 614c1f27190SArun KS .formats = AIC23_FORMATS,}, 615c1f27190SArun KS .ops = { 616c1f27190SArun KS .prepare = tlv320aic23_pcm_prepare, 617c1f27190SArun KS .hw_params = tlv320aic23_hw_params, 618c1f27190SArun KS .shutdown = tlv320aic23_shutdown, 619c1f27190SArun KS .digital_mute = tlv320aic23_mute, 620c1f27190SArun KS .set_fmt = tlv320aic23_set_dai_fmt, 621c1f27190SArun KS .set_sysclk = tlv320aic23_set_dai_sysclk, 622c1f27190SArun KS } 623c1f27190SArun KS }; 624c1f27190SArun KS EXPORT_SYMBOL_GPL(tlv320aic23_dai); 625c1f27190SArun KS 626c1f27190SArun KS static int tlv320aic23_suspend(struct platform_device *pdev, 627c1f27190SArun KS pm_message_t state) 628c1f27190SArun KS { 629c1f27190SArun KS struct snd_soc_device *socdev = platform_get_drvdata(pdev); 630c1f27190SArun KS struct snd_soc_codec *codec = socdev->codec; 631c1f27190SArun KS 632c1f27190SArun KS tlv320aic23_write(codec, TLV320AIC23_ACTIVE, 0x0); 633c1f27190SArun KS tlv320aic23_set_bias_level(codec, SND_SOC_BIAS_OFF); 634c1f27190SArun KS 635c1f27190SArun KS return 0; 636c1f27190SArun KS } 637c1f27190SArun KS 638c1f27190SArun KS static int tlv320aic23_resume(struct platform_device *pdev) 639c1f27190SArun KS { 640c1f27190SArun KS struct snd_soc_device *socdev = platform_get_drvdata(pdev); 641c1f27190SArun KS struct snd_soc_codec *codec = socdev->codec; 642c1f27190SArun KS int i; 643c1f27190SArun KS u16 reg; 644c1f27190SArun KS 645c1f27190SArun KS /* Sync reg_cache with the hardware */ 646c1f27190SArun KS for (reg = 0; reg < ARRAY_SIZE(tlv320aic23_reg); i++) { 647c1f27190SArun KS u16 val = tlv320aic23_read_reg_cache(codec, reg); 648c1f27190SArun KS tlv320aic23_write(codec, reg, val); 649c1f27190SArun KS } 650c1f27190SArun KS 651c1f27190SArun KS tlv320aic23_set_bias_level(codec, SND_SOC_BIAS_STANDBY); 652c1f27190SArun KS tlv320aic23_set_bias_level(codec, codec->suspend_bias_level); 653c1f27190SArun KS 654c1f27190SArun KS return 0; 655c1f27190SArun KS } 656c1f27190SArun KS 657c1f27190SArun KS /* 658c1f27190SArun KS * initialise the AIC23 driver 659c1f27190SArun KS * register the mixer and dsp interfaces with the kernel 660c1f27190SArun KS */ 661c1f27190SArun KS static int tlv320aic23_init(struct snd_soc_device *socdev) 662c1f27190SArun KS { 663c1f27190SArun KS struct snd_soc_codec *codec = socdev->codec; 664c1f27190SArun KS int ret = 0; 665c1f27190SArun KS u16 reg; 666c1f27190SArun KS 667c1f27190SArun KS codec->name = "tlv320aic23"; 668c1f27190SArun KS codec->owner = THIS_MODULE; 669c1f27190SArun KS codec->read = tlv320aic23_read_reg_cache; 670c1f27190SArun KS codec->write = tlv320aic23_write; 671c1f27190SArun KS codec->set_bias_level = tlv320aic23_set_bias_level; 672c1f27190SArun KS codec->dai = &tlv320aic23_dai; 673c1f27190SArun KS codec->num_dai = 1; 674c1f27190SArun KS codec->reg_cache_size = ARRAY_SIZE(tlv320aic23_reg); 675c1f27190SArun KS codec->reg_cache = 676c1f27190SArun KS kmemdup(tlv320aic23_reg, sizeof(tlv320aic23_reg), GFP_KERNEL); 677c1f27190SArun KS if (codec->reg_cache == NULL) 678c1f27190SArun KS return -ENOMEM; 679c1f27190SArun KS 680c1f27190SArun KS /* Reset codec */ 681c1f27190SArun KS tlv320aic23_write(codec, TLV320AIC23_RESET, 0); 682c1f27190SArun KS 683c1f27190SArun KS /* register pcms */ 684c1f27190SArun KS ret = snd_soc_new_pcms(socdev, SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1); 685c1f27190SArun KS if (ret < 0) { 686c1f27190SArun KS printk(KERN_ERR "tlv320aic23: failed to create pcms\n"); 687c1f27190SArun KS goto pcm_err; 688c1f27190SArun KS } 689c1f27190SArun KS 690c1f27190SArun KS /* power on device */ 691c1f27190SArun KS tlv320aic23_set_bias_level(codec, SND_SOC_BIAS_STANDBY); 692c1f27190SArun KS 693c1f27190SArun KS tlv320aic23_write(codec, TLV320AIC23_DIGT, TLV320AIC23_DEEMP_44K); 694c1f27190SArun KS 695c1f27190SArun KS /* Unmute input */ 696c1f27190SArun KS reg = tlv320aic23_read_reg_cache(codec, TLV320AIC23_LINVOL); 697c1f27190SArun KS tlv320aic23_write(codec, TLV320AIC23_LINVOL, 698c1f27190SArun KS (reg & (~TLV320AIC23_LIM_MUTED)) | 699c1f27190SArun KS (TLV320AIC23_LRS_ENABLED)); 700c1f27190SArun KS 701c1f27190SArun KS reg = tlv320aic23_read_reg_cache(codec, TLV320AIC23_RINVOL); 702c1f27190SArun KS tlv320aic23_write(codec, TLV320AIC23_RINVOL, 703c1f27190SArun KS (reg & (~TLV320AIC23_LIM_MUTED)) | 704c1f27190SArun KS TLV320AIC23_LRS_ENABLED); 705c1f27190SArun KS 706c1f27190SArun KS reg = tlv320aic23_read_reg_cache(codec, TLV320AIC23_ANLG); 707c1f27190SArun KS tlv320aic23_write(codec, TLV320AIC23_ANLG, 708c1f27190SArun KS (reg) & (~TLV320AIC23_BYPASS_ON) & 709c1f27190SArun KS (~TLV320AIC23_MICM_MUTED)); 710c1f27190SArun KS 711c1f27190SArun KS /* Default output volume */ 712c1f27190SArun KS tlv320aic23_write(codec, TLV320AIC23_LCHNVOL, 713c1f27190SArun KS TLV320AIC23_DEFAULT_OUT_VOL & 714c1f27190SArun KS TLV320AIC23_OUT_VOL_MASK); 715c1f27190SArun KS tlv320aic23_write(codec, TLV320AIC23_RCHNVOL, 716c1f27190SArun KS TLV320AIC23_DEFAULT_OUT_VOL & 717c1f27190SArun KS TLV320AIC23_OUT_VOL_MASK); 718c1f27190SArun KS 719c1f27190SArun KS tlv320aic23_write(codec, TLV320AIC23_ACTIVE, 0x1); 720c1f27190SArun KS 721c1f27190SArun KS tlv320aic23_add_controls(codec); 722c1f27190SArun KS tlv320aic23_add_widgets(codec); 723968a6025SMark Brown ret = snd_soc_init_card(socdev); 724c1f27190SArun KS if (ret < 0) { 725c1f27190SArun KS printk(KERN_ERR "tlv320aic23: failed to register card\n"); 726c1f27190SArun KS goto card_err; 727c1f27190SArun KS } 728c1f27190SArun KS 729c1f27190SArun KS return ret; 730c1f27190SArun KS 731c1f27190SArun KS card_err: 732c1f27190SArun KS snd_soc_free_pcms(socdev); 733c1f27190SArun KS snd_soc_dapm_free(socdev); 734c1f27190SArun KS pcm_err: 735c1f27190SArun KS kfree(codec->reg_cache); 736c1f27190SArun KS return ret; 737c1f27190SArun KS } 738c1f27190SArun KS static struct snd_soc_device *tlv320aic23_socdev; 739c1f27190SArun KS 740c1f27190SArun KS #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) 741c1f27190SArun KS /* 742c1f27190SArun KS * If the i2c layer weren't so broken, we could pass this kind of data 743c1f27190SArun KS * around 744c1f27190SArun KS */ 745c1f27190SArun KS static int tlv320aic23_codec_probe(struct i2c_client *i2c, 746c1f27190SArun KS const struct i2c_device_id *i2c_id) 747c1f27190SArun KS { 748c1f27190SArun KS struct snd_soc_device *socdev = tlv320aic23_socdev; 749c1f27190SArun KS struct snd_soc_codec *codec = socdev->codec; 750c1f27190SArun KS int ret; 751c1f27190SArun KS 752c1f27190SArun KS if (!i2c_check_functionality(i2c->adapter, I2C_FUNC_SMBUS_BYTE_DATA)) 753c1f27190SArun KS return -EINVAL; 754c1f27190SArun KS 755c1f27190SArun KS i2c_set_clientdata(i2c, codec); 756c1f27190SArun KS codec->control_data = i2c; 757c1f27190SArun KS 758c1f27190SArun KS ret = tlv320aic23_init(socdev); 759c1f27190SArun KS if (ret < 0) { 760c1f27190SArun KS printk(KERN_ERR "tlv320aic23: failed to initialise AIC23\n"); 761c1f27190SArun KS goto err; 762c1f27190SArun KS } 763c1f27190SArun KS return ret; 764c1f27190SArun KS 765c1f27190SArun KS err: 766c1f27190SArun KS kfree(codec); 767c1f27190SArun KS kfree(i2c); 768c1f27190SArun KS return ret; 769c1f27190SArun KS } 770c1f27190SArun KS static int __exit tlv320aic23_i2c_remove(struct i2c_client *i2c) 771c1f27190SArun KS { 772c1f27190SArun KS put_device(&i2c->dev); 773c1f27190SArun KS return 0; 774c1f27190SArun KS } 775c1f27190SArun KS 776c1f27190SArun KS static const struct i2c_device_id tlv320aic23_id[] = { 777c1f27190SArun KS {"tlv320aic23", 0}, 778c1f27190SArun KS {} 779c1f27190SArun KS }; 780c1f27190SArun KS 781c1f27190SArun KS MODULE_DEVICE_TABLE(i2c, tlv320aic23_id); 782c1f27190SArun KS 783c1f27190SArun KS static struct i2c_driver tlv320aic23_i2c_driver = { 784c1f27190SArun KS .driver = { 785c1f27190SArun KS .name = "tlv320aic23", 786c1f27190SArun KS }, 787c1f27190SArun KS .probe = tlv320aic23_codec_probe, 788c1f27190SArun KS .remove = __exit_p(tlv320aic23_i2c_remove), 789c1f27190SArun KS .id_table = tlv320aic23_id, 790c1f27190SArun KS }; 791c1f27190SArun KS 792c1f27190SArun KS #endif 793c1f27190SArun KS 794c1f27190SArun KS static int tlv320aic23_probe(struct platform_device *pdev) 795c1f27190SArun KS { 796c1f27190SArun KS struct snd_soc_device *socdev = platform_get_drvdata(pdev); 797c1f27190SArun KS struct snd_soc_codec *codec; 79826df91c3STroy Kisky struct aic23 *aic23; 799c1f27190SArun KS int ret = 0; 800c1f27190SArun KS 801c1f27190SArun KS printk(KERN_INFO "AIC23 Audio Codec %s\n", AIC23_VERSION); 802c1f27190SArun KS 80326df91c3STroy Kisky aic23 = kzalloc(sizeof(struct aic23), GFP_KERNEL); 80426df91c3STroy Kisky if (aic23 == NULL) 805c1f27190SArun KS return -ENOMEM; 80626df91c3STroy Kisky codec = &aic23->codec; 807c1f27190SArun KS socdev->codec = codec; 808c1f27190SArun KS mutex_init(&codec->mutex); 809c1f27190SArun KS INIT_LIST_HEAD(&codec->dapm_widgets); 810c1f27190SArun KS INIT_LIST_HEAD(&codec->dapm_paths); 811c1f27190SArun KS 812c1f27190SArun KS tlv320aic23_socdev = socdev; 813c1f27190SArun KS #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) 8144aa02396SArun KS codec->hw_write = (hw_write_t) i2c_master_send; 815c1f27190SArun KS codec->hw_read = NULL; 816c1f27190SArun KS ret = i2c_add_driver(&tlv320aic23_i2c_driver); 817c1f27190SArun KS if (ret != 0) 818c1f27190SArun KS printk(KERN_ERR "can't add i2c driver"); 819c1f27190SArun KS #endif 820c1f27190SArun KS return ret; 821c1f27190SArun KS } 822c1f27190SArun KS 823c1f27190SArun KS static int tlv320aic23_remove(struct platform_device *pdev) 824c1f27190SArun KS { 825c1f27190SArun KS struct snd_soc_device *socdev = platform_get_drvdata(pdev); 826c1f27190SArun KS struct snd_soc_codec *codec = socdev->codec; 82726df91c3STroy Kisky struct aic23 *aic23 = container_of(codec, struct aic23, codec); 828c1f27190SArun KS 829c1f27190SArun KS if (codec->control_data) 830c1f27190SArun KS tlv320aic23_set_bias_level(codec, SND_SOC_BIAS_OFF); 831c1f27190SArun KS 832c1f27190SArun KS snd_soc_free_pcms(socdev); 833c1f27190SArun KS snd_soc_dapm_free(socdev); 834c1f27190SArun KS #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) 835c1f27190SArun KS i2c_del_driver(&tlv320aic23_i2c_driver); 836c1f27190SArun KS #endif 837c1f27190SArun KS kfree(codec->reg_cache); 83826df91c3STroy Kisky kfree(aic23); 839c1f27190SArun KS 840c1f27190SArun KS return 0; 841c1f27190SArun KS } 842c1f27190SArun KS struct snd_soc_codec_device soc_codec_dev_tlv320aic23 = { 843c1f27190SArun KS .probe = tlv320aic23_probe, 844c1f27190SArun KS .remove = tlv320aic23_remove, 845c1f27190SArun KS .suspend = tlv320aic23_suspend, 846c1f27190SArun KS .resume = tlv320aic23_resume, 847c1f27190SArun KS }; 848c1f27190SArun KS EXPORT_SYMBOL_GPL(soc_codec_dev_tlv320aic23); 849c1f27190SArun KS 850c1f27190SArun KS MODULE_DESCRIPTION("ASoC TLV320AIC23 codec driver"); 851c1f27190SArun KS MODULE_AUTHOR("Arun KS <arunks@mistralsolutions.com>"); 852c1f27190SArun KS MODULE_LICENSE("GPL"); 853