diff options
Diffstat (limited to 'sound/soc/codecs/tlv320aic3x.c')
| -rw-r--r-- | sound/soc/codecs/tlv320aic3x.c | 1346 |
1 files changed, 1346 insertions, 0 deletions
diff --git a/sound/soc/codecs/tlv320aic3x.c b/sound/soc/codecs/tlv320aic3x.c new file mode 100644 index 0000000..cff276e --- /dev/null +++ b/sound/soc/codecs/tlv320aic3x.c @@ -0,0 +1,1346 @@ +/* + * ALSA SoC TLV320AIC3X codec driver + * + * Author: Vladimir Barinov, <vbarinov@embeddedalley.com> + * Copyright: (C) 2007 MontaVista Software, Inc., <source@mvista.com> + * + * Based on sound/soc/codecs/wm8753.c by Liam Girdwood + * + * 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. + * + * Notes: + * The AIC3X is a driver for a low power stereo audio + * codecs aic31, aic32, aic33. + * + * It supports full aic33 codec functionality. + * The compatibility with aic32, aic31 is as follows: + * aic32 | aic31 + * --------------------------------------- + * MONO_LOUT -> N/A | MONO_LOUT -> N/A + * | IN1L -> LINE1L + * | IN1R -> LINE1R + * | IN2L -> LINE2L + * | IN2R -> LINE2R + * | MIC3L/R -> N/A + * truncated internal functionality in + * accordance with documentation + * --------------------------------------- + * + * Hence the machine layer should disable unsupported inputs/outputs by + * snd_soc_dapm_disable_pin(codec, "MONO_LOUT"), etc. + */ + +#include <linux/module.h> +#include <linux/moduleparam.h> +#include <linux/init.h> +#include <linux/delay.h> +#include <linux/pm.h> +#include <linux/i2c.h> +#include <linux/platform_device.h> +#include <sound/core.h> +#include <sound/pcm.h> +#include <sound/pcm_params.h> +#include <sound/soc.h> +#include <sound/soc-dapm.h> +#include <sound/initval.h> + +#include "tlv320aic3x.h" + +#define AIC3X_VERSION "0.2" + +/* codec private data */ +struct aic3x_priv { + unsigned int sysclk; + int master; +}; + +/* + * AIC3X register cache + * We can't read the AIC3X register space when we are + * using 2 wire for device control, so we cache them instead. + * There is no point in caching the reset register + */ +static const u8 aic3x_reg[AIC3X_CACHEREGNUM] = { + 0x00, 0x00, 0x00, 0x10, /* 0 */ + 0x04, 0x00, 0x00, 0x00, /* 4 */ + 0x00, 0x00, 0x00, 0x01, /* 8 */ + 0x00, 0x00, 0x00, 0x80, /* 12 */ + 0x80, 0xff, 0xff, 0x78, /* 16 */ + 0x78, 0x78, 0x78, 0x78, /* 20 */ + 0x78, 0x00, 0x00, 0xfe, /* 24 */ + 0x00, 0x00, 0xfe, 0x00, /* 28 */ + 0x18, 0x18, 0x00, 0x00, /* 32 */ + 0x00, 0x00, 0x00, 0x00, /* 36 */ + 0x00, 0x00, 0x00, 0x80, /* 40 */ + 0x80, 0x00, 0x00, 0x00, /* 44 */ + 0x00, 0x00, 0x00, 0x04, /* 48 */ + 0x00, 0x00, 0x00, 0x00, /* 52 */ + 0x00, 0x00, 0x04, 0x00, /* 56 */ + 0x00, 0x00, 0x00, 0x00, /* 60 */ + 0x00, 0x04, 0x00, 0x00, /* 64 */ + 0x00, 0x00, 0x00, 0x00, /* 68 */ + 0x04, 0x00, 0x00, 0x00, /* 72 */ + 0x00, 0x00, 0x00, 0x00, /* 76 */ + 0x00, 0x00, 0x00, 0x00, /* 80 */ + 0x00, 0x00, 0x00, 0x00, /* 84 */ + 0x00, 0x00, 0x00, 0x00, /* 88 */ + 0x00, 0x00, 0x00, 0x00, /* 92 */ + 0x00, 0x00, 0x00, 0x00, /* 96 */ + 0x00, 0x00, 0x02, /* 100 */ +}; + +/* + * read aic3x register cache + */ +static inline unsigned int aic3x_read_reg_cache(struct snd_soc_codec *codec, + unsigned int reg) +{ + u8 *cache = codec->reg_cache; + if (reg >= AIC3X_CACHEREGNUM) + return -1; + return cache[reg]; +} + +/* + * write aic3x register cache + */ +static inline void aic3x_write_reg_cache(struct snd_soc_codec *codec, + u8 reg, u8 value) +{ + u8 *cache = codec->reg_cache; + if (reg >= AIC3X_CACHEREGNUM) + return; + cache[reg] = value; +} + +/* + * write to the aic3x register space + */ +static int aic3x_write(struct snd_soc_codec *codec, unsigned int reg, + unsigned int value) +{ + u8 data[2]; + + /* data is + * D15..D8 aic3x register offset + * D7...D0 register data + */ + data[0] = reg & 0xff; + data[1] = value & 0xff; + + aic3x_write_reg_cache(codec, data[0], data[1]); + if (codec->hw_write(codec->control_data, data, 2) == 2) + return 0; + else + return -EIO; +} + +/* + * read from the aic3x register space + */ +static int aic3x_read(struct snd_soc_codec *codec, unsigned int reg, + u8 *value) +{ + *value = reg & 0xff; + if (codec->hw_read(codec->control_data, value, 1) != 1) + return -EIO; + + aic3x_write_reg_cache(codec, reg, *value); + return 0; +} + +#define SOC_DAPM_SINGLE_AIC3X(xname, reg, shift, mask, invert) \ +{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \ + .info = snd_soc_info_volsw, \ + .get = snd_soc_dapm_get_volsw, .put = snd_soc_dapm_put_volsw_aic3x, \ + .private_value = SOC_SINGLE_VALUE(reg, shift, mask, invert) } + +/* + * All input lines are connected when !0xf and disconnected with 0xf bit field, + * so we have to use specific dapm_put call for input mixer + */ +static int snd_soc_dapm_put_volsw_aic3x(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct snd_soc_dapm_widget *widget = snd_kcontrol_chip(kcontrol); + int reg = kcontrol->private_value & 0xff; + int shift = (kcontrol->private_value >> 8) & 0x0f; + int mask = (kcontrol->private_value >> 16) & 0xff; + int invert = (kcontrol->private_value >> 24) & 0x01; + unsigned short val, val_mask; + int ret; + struct snd_soc_dapm_path *path; + int found = 0; + + val = (ucontrol->value.integer.value[0] & mask); + + mask = 0xf; + if (val) + val = mask; + + if (invert) + val = mask - val; + val_mask = mask << shift; + val = val << shift; + + mutex_lock(&widget->codec->mutex); + + if (snd_soc_test_bits(widget->codec, reg, val_mask, val)) { + /* find dapm widget path assoc with kcontrol */ + list_for_each_entry(path, &widget->codec->dapm_paths, list) { + if (path->kcontrol != kcontrol) + continue; + + /* found, now check type */ + found = 1; + if (val) + /* new connection */ + path->connect = invert ? 0 : 1; + else + /* old connection must be powered down */ + path->connect = invert ? 1 : 0; + break; + } + + if (found) + snd_soc_dapm_sync(widget->codec); + } + + ret = snd_soc_update_bits(widget->codec, reg, val_mask, val); + + mutex_unlock(&widget->codec->mutex); + return ret; +} + +static const char *aic3x_left_dac_mux[] = { "DAC_L1", "DAC_L3", "DAC_L2" }; +static const char *aic3x_right_dac_mux[] = { "DAC_R1", "DAC_R3", "DAC_R2" }; +static const char *aic3x_left_hpcom_mux[] = + { "differential of HPLOUT", "constant VCM", "single-ended" }; +static const char *aic3x_right_hpcom_mux[] = + { "differential of HPROUT", "constant VCM", "single-ended", + "differential of HPLCOM", "external feedback" }; +static const char *aic3x_linein_mode_mux[] = { "single-ended", "differential" }; +static const char *aic3x_adc_hpf[] = + { "Disabled", "0.0045xFs", "0.0125xFs", "0.025xFs" }; + +#define LDAC_ENUM 0 +#define RDAC_ENUM 1 +#define LHPCOM_ENUM 2 +#define RHPCOM_ENUM 3 +#define LINE1L_ENUM 4 +#define LINE1R_ENUM 5 +#define LINE2L_ENUM 6 +#define LINE2R_ENUM 7 +#define ADC_HPF_ENUM 8 + +static const struct soc_enum aic3x_enum[] = { + SOC_ENUM_SINGLE(DAC_LINE_MUX, 6, 3, aic3x_left_dac_mux), + SOC_ENUM_SINGLE(DAC_LINE_MUX, 4, 3, aic3x_right_dac_mux), + SOC_ENUM_SINGLE(HPLCOM_CFG, 4, 3, aic3x_left_hpcom_mux), + SOC_ENUM_SINGLE(HPRCOM_CFG, 3, 5, aic3x_right_hpcom_mux), + SOC_ENUM_SINGLE(LINE1L_2_LADC_CTRL, 7, 2, aic3x_linein_mode_mux), + SOC_ENUM_SINGLE(LINE1R_2_RADC_CTRL, 7, 2, aic3x_linein_mode_mux), + SOC_ENUM_SINGLE(LINE2L_2_LADC_CTRL, 7, 2, aic3x_linein_mode_mux), + SOC_ENUM_SINGLE(LINE2R_2_RADC_CTRL, 7, 2, aic3x_linein_mode_mux), + SOC_ENUM_DOUBLE(AIC3X_CODEC_DFILT_CTRL, 6, 4, 4, aic3x_adc_hpf), +}; + +static const struct snd_kcontrol_new aic3x_snd_controls[] = { + /* Output */ + SOC_DOUBLE_R("PCM Playback Volume", LDAC_VOL, RDAC_VOL, 0, 0x7f, 1), + + SOC_DOUBLE_R("Line DAC Playback Volume", DACL1_2_LLOPM_VOL, + DACR1_2_RLOPM_VOL, 0, 0x7f, 1), + SOC_DOUBLE_R("Line DAC Playback Switch", LLOPM_CTRL, RLOPM_CTRL, 3, + 0x01, 0), + SOC_DOUBLE_R("Line PGA Bypass Playback Volume", PGAL_2_LLOPM_VOL, + PGAR_2_RLOPM_VOL, 0, 0x7f, 1), + SOC_DOUBLE_R("Line Line2 Bypass Playback Volume", LINE2L_2_LLOPM_VOL, + LINE2R_2_RLOPM_VOL, 0, 0x7f, 1), + + SOC_DOUBLE_R("Mono DAC Playback Volume", DACL1_2_MONOLOPM_VOL, + DACR1_2_MONOLOPM_VOL, 0, 0x7f, 1), + SOC_SINGLE("Mono DAC Playback Switch", MONOLOPM_CTRL, 3, 0x01, 0), + SOC_DOUBLE_R("Mono PGA Bypass Playback Volume", PGAL_2_MONOLOPM_VOL, + PGAR_2_MONOLOPM_VOL, 0, 0x7f, 1), + SOC_DOUBLE_R("Mono Line2 Bypass Playback Volume", LINE2L_2_MONOLOPM_VOL, + LINE2R_2_MONOLOPM_VOL, 0, 0x7f, 1), + + SOC_DOUBLE_R("HP DAC Playback Volume", DACL1_2_HPLOUT_VOL, + DACR1_2_HPROUT_VOL, 0, 0x7f, 1), + SOC_DOUBLE_R("HP DAC Playback Switch", HPLOUT_CTRL, HPROUT_CTRL, 3, + 0x01, 0), + SOC_DOUBLE_R("HP PGA Bypass Playback Volume", PGAL_2_HPLOUT_VOL, + PGAR_2_HPROUT_VOL, 0, 0x7f, 1), + SOC_DOUBLE_R("HP Line2 Bypass Playback Volume", LINE2L_2_HPLOUT_VOL, + LINE2R_2_HPROUT_VOL, 0, 0x7f, 1), + + SOC_DOUBLE_R("HPCOM DAC Playback Volume", DACL1_2_HPLCOM_VOL, + DACR1_2_HPRCOM_VOL, 0, 0x7f, 1), + SOC_DOUBLE_R("HPCOM DAC Playback Switch", HPLCOM_CTRL, HPRCOM_CTRL, 3, + 0x01, 0), + SOC_DOUBLE_R("HPCOM PGA Bypass Playback Volume", PGAL_2_HPLCOM_VOL, + PGAR_2_HPRCOM_VOL, 0, 0x7f, 1), + SOC_DOUBLE_R("HPCOM Line2 Bypass Playback Volume", LINE2L_2_HPLCOM_VOL, + LINE2R_2_HPRCOM_VOL, 0, 0x7f, 1), + + /* + * Note: enable Automatic input Gain Controller with care. It can + * adjust PGA to max value when ADC is on and will never go back. + */ + SOC_DOUBLE_R("AGC Switch", LAGC_CTRL_A, RAGC_CTRL_A, 7, 0x01, 0), + + /* Input */ + SOC_DOUBLE_R("PGA Capture Volume", LADC_VOL, RADC_VOL, 0, 0x7f, 0), + SOC_DOUBLE_R("PGA Capture Switch", LADC_VOL, RADC_VOL, 7, 0x01, 1), + + SOC_ENUM("ADC HPF Cut-off", aic3x_enum[ADC_HPF_ENUM]), +}; + +/* add non dapm controls */ +static int aic3x_add_controls(struct snd_soc_codec *codec) +{ + int err, i; + + for (i = 0; i < ARRAY_SIZE(aic3x_snd_controls); i++) { + err = snd_ctl_add(codec->card, + snd_soc_cnew(&aic3x_snd_controls[i], + codec, NULL)); + if (err < 0) + return err; + } + + return 0; +} + +/* Left DAC Mux */ +static const struct snd_kcontrol_new aic3x_left_dac_mux_controls = +SOC_DAPM_ENUM("Route", aic3x_enum[LDAC_ENUM]); + +/* Right DAC Mux */ +static const struct snd_kcontrol_new aic3x_right_dac_mux_controls = +SOC_DAPM_ENUM("Route", aic3x_enum[RDAC_ENUM]); + +/* Left HPCOM Mux */ +static const struct snd_kcontrol_new aic3x_left_hpcom_mux_controls = +SOC_DAPM_ENUM("Route", aic3x_enum[LHPCOM_ENUM]); + +/* Right HPCOM Mux */ +static const struct snd_kcontrol_new aic3x_right_hpcom_mux_controls = +SOC_DAPM_ENUM("Route", aic3x_enum[RHPCOM_ENUM]); + +/* Left DAC_L1 Mixer */ +static const struct snd_kcontrol_new aic3x_left_dac_mixer_controls[] = { + SOC_DAPM_SINGLE("Line Switch", DACL1_2_LLOPM_VOL, 7, 1, 0), + SOC_DAPM_SINGLE("Mono Switch", DACL1_2_MONOLOPM_VOL, 7, 1, 0), + SOC_DAPM_SINGLE("HP Switch", DACL1_2_HPLOUT_VOL, 7, 1, 0), + SOC_DAPM_SINGLE("HPCOM Switch", DACL1_2_HPLCOM_VOL, 7, 1, 0), +}; + +/* Right DAC_R1 Mixer */ +static const struct snd_kcontrol_new aic3x_right_dac_mixer_controls[] = { + SOC_DAPM_SINGLE("Line Switch", DACR1_2_RLOPM_VOL, 7, 1, 0), + SOC_DAPM_SINGLE("Mono Switch", DACR1_2_MONOLOPM_VOL, 7, 1, 0), + SOC_DAPM_SINGLE("HP Switch", DACR1_2_HPROUT_VOL, 7, 1, 0), + SOC_DAPM_SINGLE("HPCOM Switch", DACR1_2_HPRCOM_VOL, 7, 1, 0), +}; + +/* Left PGA Mixer */ +static const struct snd_kcontrol_new aic3x_left_pga_mixer_controls[] = { + SOC_DAPM_SINGLE_AIC3X("Line1L Switch", LINE1L_2_LADC_CTRL, 3, 1, 1), + SOC_DAPM_SINGLE_AIC3X("Line2L Switch", LINE2L_2_LADC_CTRL, 3, 1, 1), + SOC_DAPM_SINGLE_AIC3X("Mic3L Switch", MIC3LR_2_LADC_CTRL, 4, 1, 1), +}; + +/* Right PGA Mixer */ +static const struct snd_kcontrol_new aic3x_right_pga_mixer_controls[] = { + SOC_DAPM_SINGLE_AIC3X("Line1R Switch", LINE1R_2_RADC_CTRL, 3, 1, 1), + SOC_DAPM_SINGLE_AIC3X("Line2R Switch", LINE2R_2_RADC_CTRL, 3, 1, 1), + SOC_DAPM_SINGLE_AIC3X("Mic3R Switch", MIC3LR_2_RADC_CTRL, 0, 1, 1), +}; + +/* Left Line1 Mux */ +static const struct snd_kcontrol_new aic3x_left_line1_mux_controls = +SOC_DAPM_ENUM("Route", aic3x_enum[LINE1L_ENUM]); + +/* Right Line1 Mux */ +static const struct snd_kcontrol_new aic3x_right_line1_mux_controls = +SOC_DAPM_ENUM("Route", aic3x_enum[LINE1R_ENUM]); + +/* Left Line2 Mux */ +static const struct snd_kcontrol_new aic3x_left_line2_mux_controls = +SOC_DAPM_ENUM("Route", aic3x_enum[LINE2L_ENUM]); + +/* Right Line2 Mux */ +static const struct snd_kcontrol_new aic3x_right_line2_mux_controls = +SOC_DAPM_ENUM("Route", aic3x_enum[LINE2R_ENUM]); + +/* Left PGA Bypass Mixer */ +static const struct snd_kcontrol_new aic3x_left_pga_bp_mixer_controls[] = { + SOC_DAPM_SINGLE("Line Switch", PGAL_2_LLOPM_VOL, 7, 1, 0), + SOC_DAPM_SINGLE("Mono Switch", PGAL_2_MONOLOPM_VOL, 7, 1, 0), + SOC_DAPM_SINGLE("HP Switch", PGAL_2_HPLOUT_VOL, 7, 1, 0), + SOC_DAPM_SINGLE("HPCOM Switch", PGAL_2_HPLCOM_VOL, 7, 1, 0), +}; + +/* Right PGA Bypass Mixer */ +static const struct snd_kcontrol_new aic3x_right_pga_bp_mixer_controls[] = { + SOC_DAPM_SINGLE("Line Switch", PGAR_2_RLOPM_VOL, 7, 1, 0), + SOC_DAPM_SINGLE("Mono Switch", PGAR_2_MONOLOPM_VOL, 7, 1, 0), + SOC_DAPM_SINGLE("HP Switch", PGAR_2_HPROUT_VOL, 7, 1, 0), + SOC_DAPM_SINGLE("HPCOM Switch", PGAR_2_HPRCOM_VOL, 7, 1, 0), +}; + +/* Left Line2 Bypass Mixer */ +static const struct snd_kcontrol_new aic3x_left_line2_bp_mixer_controls[] = { + SOC_DAPM_SINGLE("Line Switch", LINE2L_2_LLOPM_VOL, 7, 1, 0), + SOC_DAPM_SINGLE("Mono Switch", LINE2L_2_MONOLOPM_VOL, 7, 1, 0), + SOC_DAPM_SINGLE("HP Switch", LINE2L_2_HPLOUT_VOL, 7, 1, 0), + SOC_DAPM_SINGLE("HPCOM Switch", LINE2L_2_HPLCOM_VOL, 7, 1, 0), +}; + +/* Right Line2 Bypass Mixer */ +static const struct snd_kcontrol_new aic3x_right_line2_bp_mixer_controls[] = { + SOC_DAPM_SINGLE("Line Switch", LINE2R_2_RLOPM_VOL, 7, 1, 0), + SOC_DAPM_SINGLE("Mono Switch", LINE2R_2_MONOLOPM_VOL, 7, 1, 0), + SOC_DAPM_SINGLE("HP Switch", LINE2R_2_HPROUT_VOL, 7, 1, 0), + SOC_DAPM_SINGLE("HPCOM Switch", LINE2R_2_HPRCOM_VOL, 7, 1, 0), +}; + +static const struct snd_soc_dapm_widget aic3x_dapm_widgets[] = { + /* Left DAC to Left Outputs */ + SND_SOC_DAPM_DAC("Left DAC", "Left Playback", DAC_PWR, 7, 0), + SND_SOC_DAPM_MUX("Left DAC Mux", SND_SOC_NOPM, 0, 0, + &aic3x_left_dac_mux_controls), + SND_SOC_DAPM_MIXER("Left DAC_L1 Mixer", SND_SOC_NOPM, 0, 0, + &aic3x_left_dac_mixer_controls[0], + ARRAY_SIZE(aic3x_left_dac_mixer_controls)), + SND_SOC_DAPM_MUX("Left HPCOM Mux", SND_SOC_NOPM, 0, 0, + &aic3x_left_hpcom_mux_controls), + SND_SOC_DAPM_PGA("Left Line Out", LLOPM_CTRL, 0, 0, NULL, 0), + SND_SOC_DAPM_PGA("Left HP Out", HPLOUT_CTRL, 0, 0, NULL, 0), + SND_SOC_DAPM_PGA("Left HP Com", HPLCOM_CTRL, 0, 0, NULL, 0), + + /* Right DAC to Right Outputs */ + SND_SOC_DAPM_DAC("Right DAC", "Right Playback", DAC_PWR, 6, 0), + SND_SOC_DAPM_MUX("Right DAC Mux", SND_SOC_NOPM, 0, 0, + &aic3x_right_dac_mux_controls), + SND_SOC_DAPM_MIXER("Right DAC_R1 Mixer", SND_SOC_NOPM, 0, 0, + &aic3x_right_dac_mixer_controls[0], + ARRAY_SIZE(aic3x_right_dac_mixer_controls)), + SND_SOC_DAPM_MUX("Right HPCOM Mux", SND_SOC_NOPM, 0, 0, + &aic3x_right_hpcom_mux_controls), + SND_SOC_DAPM_PGA("Right Line Out", RLOPM_CTRL, 0, 0, NULL, 0), + SND_SOC_DAPM_PGA("Right HP Out", HPROUT_CTRL, 0, 0, NULL, 0), + SND_SOC_DAPM_PGA("Right HP Com", HPRCOM_CTRL, 0, 0, NULL, 0), + + /* Mono Output */ + SND_SOC_DAPM_PGA("Mono Out", MONOLOPM_CTRL, 0, 0, NULL, 0), + + /* Left Inputs to Left ADC */ + SND_SOC_DAPM_ADC("Left ADC", "Left Capture", LINE1L_2_LADC_CTRL, 2, 0), + SND_SOC_DAPM_MIXER("Left PGA Mixer", SND_SOC_NOPM, 0, 0, + &aic3x_left_pga_mixer_controls[0], + ARRAY_SIZE(aic3x_left_pga_mixer_controls)), + SND_SOC_DAPM_MUX("Left Line1L Mux", SND_SOC_NOPM, 0, 0, + &aic3x_left_line1_mux_controls), + SND_SOC_DAPM_MUX("Left Line2L Mux", SND_SOC_NOPM, 0, 0, + &aic3x_left_line2_mux_controls), + + /* Right Inputs to Right ADC */ + SND_SOC_DAPM_ADC("Right ADC", "Right Capture", + LINE1R_2_RADC_CTRL, 2, 0), + SND_SOC_DAPM_MIXER("Right PGA Mixer", SND_SOC_NOPM, 0, 0, + &aic3x_right_pga_mixer_controls[0], + ARRAY_SIZE(aic3x_right_pga_mixer_controls)), + SND_SOC_DAPM_MUX("Right Line1R Mux", SND_SOC_NOPM, 0, 0, + &aic3x_right_line1_mux_controls), + SND_SOC_DAPM_MUX("Right Line2R Mux", SND_SOC_NOPM, 0, 0, + &aic3x_right_line2_mux_controls), + + /* + * Not a real mic bias widget but similar function. This is for dynamic + * control of GPIO1 digital mic modulator clock output function when + * using digital mic. + */ + SND_SOC_DAPM_REG(snd_soc_dapm_micbias, "GPIO1 dmic modclk", + AIC3X_GPIO1_REG, 4, 0xf, + AIC3X_GPIO1_FUNC_DIGITAL_MIC_MODCLK, + AIC3X_GPIO1_FUNC_DISABLED), + + /* + * Also similar function like mic bias. Selects digital mic with + * configurable oversampling rate instead of ADC converter. + */ + SND_SOC_DAPM_REG(snd_soc_dapm_micbias, "DMic Rate 128", + AIC3X_ASD_INTF_CTRLA, 0, 3, 1, 0), + SND_SOC_DAPM_REG(snd_soc_dapm_micbias, "DMic Rate 64", + AIC3X_ASD_INTF_CTRLA, 0, 3, 2, 0), + SND_SOC_DAPM_REG(snd_soc_dapm_micbias, "DMic Rate 32", + AIC3X_ASD_INTF_CTRLA, 0, 3, 3, 0), + + /* Mic Bias */ + SND_SOC_DAPM_REG(snd_soc_dapm_micbias, "Mic Bias 2V", + MICBIAS_CTRL, 6, 3, 1, 0), + SND_SOC_DAPM_REG(snd_soc_dapm_micbias, "Mic Bias 2.5V", + MICBIAS_CTRL, 6, 3, 2, 0), + SND_SOC_DAPM_REG(snd_soc_dapm_micbias, "Mic Bias AVDD", + MICBIAS_CTRL, 6, 3, 3, 0), + + /* Left PGA to Left Output bypass */ + SND_SOC_DAPM_MIXER("Left PGA Bypass Mixer", SND_SOC_NOPM, 0, 0, + &aic3x_left_pga_bp_mixer_controls[0], + ARRAY_SIZE(aic3x_left_pga_bp_mixer_controls)), + + /* Right PGA to Right Output bypass */ + SND_SOC_DAPM_MIXER("Right PGA Bypass Mixer", SND_SOC_NOPM, 0, 0, + &aic3x_right_pga_bp_mixer_controls[0], + ARRAY_SIZE(aic3x_right_pga_bp_mixer_controls)), + + /* Left Line2 to Left Output bypass */ + SND_SOC_DAPM_MIXER("Left Line2 Bypass Mixer", SND_SOC_NOPM, 0, 0, + &aic3x_left_line2_bp_mixer_controls[0], + ARRAY_SIZE(aic3x_left_line2_bp_mixer_controls)), + + /* Right Line2 to Right Output bypass */ + SND_SOC_DAPM_MIXER("Right Line2 Bypass Mixer", SND_SOC_NOPM, 0, 0, + &aic3x_right_line2_bp_mixer_controls[0], + ARRAY_SIZE(aic3x_right_line2_bp_mixer_controls)), + + SND_SOC_DAPM_OUTPUT("LLOUT"), + SND_SOC_DAPM_OUTPUT("RLOUT"), + SND_SOC_DAPM_OUTPUT("MONO_LOUT"), + SND_SOC_DAPM_OUTPUT("HPLOUT"), + SND_SOC_DAPM_OUTPUT("HPROUT"), + SND_SOC_DAPM_OUTPUT("HPLCOM"), + SND_SOC_DAPM_OUTPUT("HPRCOM"), + + SND_SOC_DAPM_INPUT("MIC3L"), + SND_SOC_DAPM_INPUT("MIC3R"), + SND_SOC_DAPM_INPUT("LINE1L"), + SND_SOC_DAPM_INPUT("LINE1R"), + SND_SOC_DAPM_INPUT("LINE2L"), + SND_SOC_DAPM_INPUT("LINE2R"), +}; + +static const struct snd_soc_dapm_route intercon[] = { + /* Left Output */ + {"Left DAC Mux", "DAC_L1", "Left DAC"}, + {"Left DAC Mux", "DAC_L2", "Left DAC"}, + {"Left DAC Mux", "DAC_L3", "Left DAC"}, + + {"Left DAC_L1 Mixer", "Line Switch", "Left DAC Mux"}, + {"Left DAC_L1 Mixer", "Mono Switch", "Left DAC Mux"}, + {"Left DAC_L1 Mixer", "HP Switch", "Left DAC Mux"}, + {"Left DAC_L1 Mixer", "HPCOM Switch", "Left DAC Mux"}, + {"Left Line Out", NULL, "Left DAC Mux"}, + {"Left HP Out", NULL, "Left DAC Mux"}, + + {"Left HPCOM Mux", "differential of HPLOUT", "Left DAC_L1 Mixer"}, + {"Left HPCOM Mux", "constant VCM", "Left DAC_L1 Mixer"}, + {"Left HPCOM Mux", "single-ended", "Left DAC_L1 Mixer"}, + + {"Left Line Out", NULL, "Left DAC_L1 Mixer"}, + {"Mono Out", NULL, "Left DAC_L1 Mixer"}, + {"Left HP Out", NULL, "Left DAC_L1 Mixer"}, + {"Left HP Com", NULL, "Left HPCOM Mux"}, + + {"LLOUT", NULL, "Left Line Out"}, + {"LLOUT", NULL, "Left Line Out"}, + {"HPLOUT", NULL, "Left HP Out"}, + {"HPLCOM", NULL, "Left HP Com"}, + + /* Right Output */ + {"Right DAC Mux", "DAC_R1", "Right DAC"}, + {"Right DAC Mux", "DAC_R2", "Right DAC"}, + {"Right DAC Mux", "DAC_R3", "Right DAC"}, + + {"Right DAC_R1 Mixer", "Line Switch", "Right DAC Mux"}, + {"Right DAC_R1 Mixer", "Mono Switch", "Right DAC Mux"}, + {"Right DAC_R1 Mixer", "HP Switch", "Right DAC Mux"}, + {"Right DAC_R1 Mixer", "HPCOM Switch", "Right DAC Mux"}, + {"Right Line Out", NULL, "Right DAC Mux"}, + {"Right HP Out", NULL, "Right DAC Mux"}, + + {"Right HPCOM Mux", "differential of HPROUT", "Right DAC_R1 Mixer"}, + {"Right HPCOM Mux", "constant VCM", "Right DAC_R1 Mixer"}, + {"Right HPCOM Mux", "single-ended", "Right DAC_R1 Mixer"}, + {"Right HPCOM Mux", "differential of HPLCOM", "Right DAC_R1 Mixer"}, + {"Right HPCOM Mux", "external feedback", "Right DAC_R1 Mixer"}, + + {"Right Line Out", NULL, "Right DAC_R1 Mixer"}, + {"Mono Out", NULL, "Right DAC_R1 Mixer"}, + {"Right HP Out", NULL, "Right DAC_R1 Mixer"}, + {"Right HP Com", NULL, "Right HPCOM Mux"}, + + {"RLOUT", NULL, "Right Line Out"}, + {"RLOUT", NULL, "Right Line Out"}, + {"HPROUT", NULL, "Right HP Out"}, + {"HPRCOM", NULL, "Right HP Com"}, + + /* Mono Output */ + {"MONO_LOUT", NULL, "Mono Out"}, + {"MONO_LOUT", NULL, "Mono Out"}, + + /* Left Input */ + {"Left Line1L Mux", "single-ended", "LINE1L"}, + {"Left Line1L Mux", "differential", "LINE1L"}, + + {"Left Line2L Mux", "single-ended", "LINE2L"}, + {"Left Line2L Mux", "differential", "LINE2L"}, + + {"Left PGA Mixer", "Line1L Switch", "Left Line1L Mux"}, + {"Left PGA Mixer", "Line2L Switch", "Left Line2L Mux"}, + {"Left PGA Mixer", "Mic3L Switch", "MIC3L"}, + + {"Left ADC", NULL, "Left PGA Mixer"}, + {"Left ADC", NULL, "GPIO1 dmic modclk"}, + + /* Right Input */ + {"Right Line1R Mux", "single-ended", "LINE1R"}, + {"Right Line1R Mux", "differential", "LINE1R"}, + + {"Right Line2R Mux", "single-ended", "LINE2R"}, + {"Right Line2R Mux", "differential", "LINE2R"}, + + {"Right PGA Mixer", "Line1R Switch", "Right Line1R Mux"}, + {"Right PGA Mixer", "Line2R Switch", "Right Line2R Mux"}, + {"Right PGA Mixer", "Mic3R Switch", "MIC3R"}, + + {"Right ADC", NULL, "Right PGA Mixer"}, + {"Right ADC", NULL, "GPIO1 dmic modclk"}, + + /* Left PGA Bypass */ + {"Left PGA Bypass Mixer", "Line Switch", "Left PGA Mixer"}, + {"Left PGA Bypass Mixer", "Mono Switch", "Left PGA Mixer"}, + {"Left PGA Bypass Mixer", "HP Switch", "Left PGA Mixer"}, + {"Left PGA Bypass Mixer", "HPCOM Switch", "Left PGA Mixer"}, + + {"Left HPCOM Mux", "differential of HPLOUT", "Left PGA Bypass Mixer"}, + {"Left HPCOM Mux", "constant VCM", "Left PGA Bypass Mixer"}, + {"Left HPCOM Mux", "single-ended", "Left PGA Bypass Mixer"}, + + {"Left Line Out", NULL, "Left PGA Bypass Mixer"}, + {"Mono Out", NULL, "Left PGA Bypass Mixer"}, + {"Left HP Out", NULL, "Left PGA Bypass Mixer"}, + + /* Right PGA Bypass */ + {"Right PGA Bypass Mixer", "Line Switch", "Right PGA Mixer"}, + {"Right PGA Bypass Mixer", "Mono Switch", "Right PGA Mixer"}, + {"Right PGA Bypass Mixer", "HP Switch", "Right PGA Mixer"}, + {"Right PGA Bypass Mixer", "HPCOM Switch", "Right PGA Mixer"}, + + {"Right HPCOM Mux", "differential of HPROUT", "Right PGA Bypass Mixer"}, + {"Right HPCOM Mux", "constant VCM", "Right PGA Bypass Mixer"}, + {"Right HPCOM Mux", "single-ended", "Right PGA Bypass Mixer"}, + {"Right HPCOM Mux", "differential of HPLCOM", "Right PGA Bypass Mixer"}, + {"Right HPCOM Mux", "external feedback", "Right PGA Bypass Mixer"}, + + {"Right Line Out", NULL, "Right PGA Bypass Mixer"}, + {"Mono Out", NULL, "Right PGA Bypass Mixer"}, + {"Right HP Out", NULL, "Right PGA Bypass Mixer"}, + + /* Left Line2 Bypass */ + {"Left Line2 Bypass Mixer", "Line Switch", "Left Line2L Mux"}, + {"Left Line2 Bypass Mixer", "Mono Switch", "Left Line2L Mux"}, + {"Left Line2 Bypass Mixer", "HP Switch", "Left Line2L Mux"}, + {"Left Line2 Bypass Mixer", "HPCOM Switch", "Left Line2L Mux"}, + + {"Left HPCOM Mux", "differential of HPLOUT", "Left Line2 Bypass Mixer"}, + {"Left HPCOM Mux", "constant VCM", "Left Line2 Bypass Mixer"}, + {"Left HPCOM Mux", "single-ended", "Left Line2 Bypass Mixer"}, + + {"Left Line Out", NULL, "Left Line2 Bypass Mixer"}, + {"Mono Out", NULL, "Left Line2 Bypass Mixer"}, + {"Left HP Out", NULL, "Left Line2 Bypass Mixer"}, + + /* Right Line2 Bypass */ + {"Right Line2 Bypass Mixer", "Line Switch", "Right Line2R Mux"}, + {"Right Line2 Bypass Mixer", "Mono Switch", "Right Line2R Mux"}, + {"Right Line2 Bypass Mixer", "HP Switch", "Right Line2R Mux"}, + {"Right Line2 Bypass Mixer", "HPCOM Switch", "Right Line2R Mux"}, + + {"Right HPCOM Mux", "differential of HPROUT", "Right Line2 Bypass Mixer"}, + {"Right HPCOM Mux", "constant VCM", "Right Line2 Bypass Mixer"}, + {"Right HPCOM Mux", "single-ended", "Right Line2 Bypass Mixer"}, + {"Right HPCOM Mux", "differential of HPLCOM", "Right Line2 Bypass Mixer"}, + {"Right HPCOM Mux", "external feedback", "Right Line2 Bypass Mixer"}, + + {"Right Line Out", NULL, "Right Line2 Bypass Mixer"}, + {"Mono Out", NULL, "Right Line2 Bypass Mixer"}, + {"Right HP Out", NULL, "Right Line2 Bypass Mixer"}, + + /* + * Logical path between digital mic enable and GPIO1 modulator clock + * output function + */ + {"GPIO1 dmic modclk", NULL, "DMic Rate 128"}, + {"GPIO1 dmic modclk", NULL, "DMic Rate 64"}, + {"GPIO1 dmic modclk", NULL, "DMic Rate 32"}, +}; + +static int aic3x_add_widgets(struct snd_soc_codec *codec) +{ + snd_soc_dapm_new_controls(codec, aic3x_dapm_widgets, + ARRAY_SIZE(aic3x_dapm_widgets)); + + /* set up audio path interconnects */ + snd_soc_dapm_add_routes(codec, intercon, ARRAY_SIZE(intercon)); + + snd_soc_dapm_new_widgets(codec); + return 0; +} + +static int aic3x_hw_params(struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *params) +{ + struct snd_soc_pcm_runtime *rtd = substream->private_data; + struct snd_soc_device *socdev = rtd->socdev; + struct snd_soc_codec *codec = socdev->codec; + struct aic3x_priv *aic3x = codec->private_data; + int codec_clk = 0, bypass_pll = 0, fsref, last_clk = 0; + u8 data, r, p, pll_q, pll_p = 1, pll_r = 1, pll_j = 1; + u16 pll_d = 1; + + /* select data word length */ + data = + aic3x_read_reg_cache(codec, AIC3X_ASD_INTF_CTRLB) & (~(0x3 << 4)); + switch (params_format(params)) { + case SNDRV_PCM_FORMAT_S16_LE: + break; + case SNDRV_PCM_FORMAT_S20_3LE: + data |= (0x01 << 4); + break; + case SNDRV_PCM_FORMAT_S24_LE: + data |= (0x02 << 4); + break; + case SNDRV_PCM_FORMAT_S32_LE: + data |= (0x03 << 4); + break; + } + aic3x_write(codec, AIC3X_ASD_INTF_CTRLB, data); + + /* Fsref can be 44100 or 48000 */ + fsref = (params_rate(params) % 11025 == 0) ? 44100 : 48000; + + /* Try to find a value for Q which allows us to bypass the PLL and + * generate CODEC_CLK directly. */ + for (pll_q = 2; pll_q < 18; pll_q++) + if (aic3x->sysclk / (128 * pll_q) == fsref) { + bypass_pll = 1; + break; + } + + if (bypass_pll) { + pll_q &= 0xf; + aic3x_write(codec, AIC3X_PLL_PROGA_REG, pll_q << PLLQ_SHIFT); + aic3x_write(codec, AIC3X_GPIOB_REG, CODEC_CLKIN_CLKDIV); + } else + aic3x_write(codec, AIC3X_GPIOB_REG, CODEC_CLKIN_PLLDIV); + + /* Route Left DAC to left channel input and + * right DAC to right channel input */ + data = (LDAC2LCH | RDAC2RCH); + data |= (fsref == 44100) ? FSREF_44100 : FSREF_48000; + if (params_rate(params) >= 64000) + data |= DUAL_RATE_MODE; + aic3x_write(codec, AIC3X_CODEC_DATAPATH_REG, data); + + /* codec sample rate select */ + data = (fsref * 20) / params_rate(params); + if (params_rate(params) < 64000) + data /= 2; + data /= 5; + data -= 2; + data |= (data << 4); + aic3x_write(codec, AIC3X_SAMPLE_RATE_SEL_REG, data); + + if (bypass_pll) + return 0; + + /* Use PLL + * find an apropriate setup for j, d, r and p by iterating over + * p and r - j and d are calculated for each fraction. + * Up to 128 values are probed, the closest one wins the game. + * The sysclk is divided by 1000 to prevent integer overflows. + */ + codec_clk = (2048 * fsref) / (aic3x->sysclk / 1000); + + for (r = 1; r <= 16; r++) + for (p = 1; p <= 8; p++) { + int clk, tmp = (codec_clk * pll_r * 10) / pll_p; + u8 j = tmp / 10000; + u16 d = tmp % 10000; + + if (j > 63) + continue; + + if (d != 0 && aic3x->sysclk < 10000000) + continue; + + /* This is actually 1000 * ((j + (d/10000)) * r) / p + * The term had to be converted to get rid of the + * division by 10000 */ + clk = ((10000 * j * r) + (d * r)) / (10 * p); + + /* check whether this values get closer than the best + * ones we had before */ + if (abs(codec_clk - clk) < abs(codec_clk - last_clk)) { + pll_j = j; pll_d = d; pll_r = r; pll_p = p; + last_clk = clk; + } + + /* Early exit for exact matches */ + if (clk == codec_clk) + break; + } + + if (last_clk == 0) { + printk(KERN_ERR "%s(): unable to setup PLL\n", __func__); + return -EINVAL; + } + + data = aic3x_read_reg_cache(codec, AIC3X_PLL_PROGA_REG); + aic3x_write(codec, AIC3X_PLL_PROGA_REG, data | (pll_p << PLLP_SHIFT)); + aic3x_write(codec, AIC3X_OVRF_STATUS_AND_PLLR_REG, pll_r << PLLR_SHIFT); + aic3x_write(codec, AIC3X_PLL_PROGB_REG, pll_j << PLLJ_SHIFT); + aic3x_write(codec, AIC3X_PLL_PROGC_REG, (pll_d >> 6) << PLLD_MSB_SHIFT); + aic3x_write(codec, AIC3X_PLL_PROGD_REG, + (pll_d & 0x3F) << PLLD_LSB_SHIFT); + + return 0; +} + +static int aic3x_mute(struct snd_soc_dai *dai, int mute) +{ + struct snd_soc_codec *codec = dai->codec; + u8 ldac_reg = aic3x_read_reg_cache(codec, LDAC_VOL) & ~MUTE_ON; + u8 rdac_reg = aic3x_read_reg_cache(codec, RDAC_VOL) & ~MUTE_ON; + + if (mute) { + aic3x_write(codec, LDAC_VOL, ldac_reg | MUTE_ON); + aic3x_write(codec, RDAC_VOL, rdac_reg | MUTE_ON); + } else { + aic3x_write(codec, LDAC_VOL, ldac_reg); + aic3x_write(codec, RDAC_VOL, rdac_reg); + } + + return 0; +} + +static int aic3x_set_dai_sysclk(struct snd_soc_dai *codec_dai, + int clk_id, unsigned int freq, int dir) +{ + struct snd_soc_codec *codec = codec_dai->codec; + struct aic3x_priv *aic3x = codec->private_data; + + aic3x->sysclk = freq; + return 0; +} + +static int aic3x_set_dai_fmt(struct snd_soc_dai *codec_dai, + unsigned int fmt) +{ + struct snd_soc_codec *codec = codec_dai->codec; + struct aic3x_priv *aic3x = codec->private_data; + u8 iface_areg, iface_breg; + + iface_areg = aic3x_read_reg_cache(codec, AIC3X_ASD_INTF_CTRLA) & 0x3f; + iface_breg = aic3x_read_reg_cache(codec, AIC3X_ASD_INTF_CTRLB) & 0x3f; + + /* set master/slave audio interface */ + switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) { + case SND_SOC_DAIFMT_CBM_CFM: + aic3x->master = 1; + iface_areg |= BIT_CLK_MASTER | WORD_CLK_MASTER; + break; + case SND_SOC_DAIFMT_CBS_CFS: + aic3x->master = 0; + break; + default: + return -EINVAL; + } + + /* + * match both interface format and signal polarities since they + * are fixed + */ + switch (fmt & (SND_SOC_DAIFMT_FORMAT_MASK | + SND_SOC_DAIFMT_INV_MASK)) { + case (SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF): + break; + case (SND_SOC_DAIFMT_DSP_B | SND_SOC_DAIFMT_IB_NF): + iface_breg |= (0x01 << 6); + break; + case (SND_SOC_DAIFMT_RIGHT_J | SND_SOC_DAIFMT_NB_NF): + iface_breg |= (0x02 << 6); + break; + case (SND_SOC_DAIFMT_LEFT_J | SND_SOC_DAIFMT_NB_NF): + iface_breg |= (0x03 << 6); + break; + default: + return -EINVAL; + } + + /* set iface */ + aic3x_write(codec, AIC3X_ASD_INTF_CTRLA, iface_areg); + aic3x_write(codec, AIC3X_ASD_INTF_CTRLB, iface_breg); + + return 0; +} + +static int aic3x_set_bias_level(struct snd_soc_codec *codec, + enum snd_soc_bias_level level) +{ + struct aic3x_priv *aic3x = codec->private_data; + u8 reg; + + switch (level) { + case SND_SOC_BIAS_ON: + /* all power is driven by DAPM system */ + if (aic3x->master) { + /* enable pll */ + reg = aic3x_read_reg_cache(codec, AIC3X_PLL_PROGA_REG); + aic3x_write(codec, AIC3X_PLL_PROGA_REG, + reg | PLL_ENABLE); + } + break; + case SND_SOC_BIAS_PREPARE: + break; + case SND_SOC_BIAS_STANDBY: + /* + * all power is driven by DAPM system, + * so output power is safe if bypass was set + */ + if (aic3x->master) { + /* disable pll */ + reg = aic3x_read_reg_cache(codec, AIC3X_PLL_PROGA_REG); + aic3x_write(codec, AIC3X_PLL_PROGA_REG, + reg & ~PLL_ENABLE); + } + break; + case SND_SOC_BIAS_OFF: + /* force all power off */ + reg = aic3x_read_reg_cache(codec, LINE1L_2_LADC_CTRL); + aic3x_write(codec, LINE1L_2_LADC_CTRL, reg & ~LADC_PWR_ON); + reg = aic3x_read_reg_cache(codec, LINE1R_2_RADC_CTRL); + aic3x_write(codec, LINE1R_2_RADC_CTRL, reg & ~RADC_PWR_ON); + + reg = aic3x_read_reg_cache(codec, DAC_PWR); + aic3x_write(codec, DAC_PWR, reg & ~(LDAC_PWR_ON | RDAC_PWR_ON)); + + reg = aic3x_read_reg_cache(codec, HPLOUT_CTRL); + aic3x_write(codec, HPLOUT_CTRL, reg & ~HPLOUT_PWR_ON); + reg = aic3x_read_reg_cache(codec, HPROUT_CTRL); + aic3x_write(codec, HPROUT_CTRL, reg & ~HPROUT_PWR_ON); + + reg = aic3x_read_reg_cache(codec, HPLCOM_CTRL); + aic3x_write(codec, HPLCOM_CTRL, reg & ~HPLCOM_PWR_ON); + reg = aic3x_read_reg_cache(codec, HPRCOM_CTRL); + aic3x_write(codec, HPRCOM_CTRL, reg & ~HPRCOM_PWR_ON); + + reg = aic3x_read_reg_cache(codec, MONOLOPM_CTRL); + aic3x_write(codec, MONOLOPM_CTRL, reg & ~MONOLOPM_PWR_ON); + + reg = aic3x_read_reg_cache(codec, LLOPM_CTRL); + aic3x_write(codec, LLOPM_CTRL, reg & ~LLOPM_PWR_ON); + reg = aic3x_read_reg_cache(codec, RLOPM_CTRL); + aic3x_write(codec, RLOPM_CTRL, reg & ~RLOPM_PWR_ON); + + if (aic3x->master) { + /* disable pll */ + reg = aic3x_read_reg_cache(codec, AIC3X_PLL_PROGA_REG); + aic3x_write(codec, AIC3X_PLL_PROGA_REG, + reg & ~PLL_ENABLE); + } + break; + } + codec->bias_level = level; + + return 0; +} + +void aic3x_set_gpio(struct snd_soc_codec *codec, int gpio, int state) +{ + u8 reg = gpio ? AIC3X_GPIO2_REG : AIC3X_GPIO1_REG; + u8 bit = gpio ? 3: 0; + u8 val = aic3x_read_reg_cache(codec, reg) & ~(1 << bit); + aic3x_write(codec, reg, val | (!!state << bit)); +} +EXPORT_SYMBOL_GPL(aic3x_set_gpio); + +int aic3x_get_gpio(struct snd_soc_codec *codec, int gpio) +{ + u8 reg = gpio ? AIC3X_GPIO2_REG : AIC3X_GPIO1_REG; + u8 val, bit = gpio ? 2: 1; + + aic3x_read(codec, reg, &val); + return (val >> bit) & 1; +} +EXPORT_SYMBOL_GPL(aic3x_get_gpio); + +int aic3x_headset_detected(struct snd_soc_codec *codec) +{ + u8 val; + aic3x_read(codec, AIC3X_RT_IRQ_FLAGS_REG, &val); + return (val >> 2) & 1; +} +EXPORT_SYMBOL_GPL(aic3x_headset_detected); + +#define AIC3X_RATES SNDRV_PCM_RATE_8000_96000 +#define AIC3X_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE | \ + SNDRV_PCM_FMTBIT_S24_3LE | SNDRV_PCM_FMTBIT_S32_LE) + +struct snd_soc_dai aic3x_dai = { + .name = "tlv320aic3x", + .playback = { + .stream_name = "Playback", + .channels_min = 1, + .channels_max = 2, + .rates = AIC3X_RATES, + .formats = AIC3X_FORMATS,}, + .capture = { + .stream_name = "Capture", + .channels_min = 1, + .channels_max = 2, + .rates = AIC3X_RATES, + .formats = AIC3X_FORMATS,}, + .ops = { + .hw_params = aic3x_hw_params, + }, + .dai_ops = { + .digital_mute = aic3x_mute, + .set_sysclk = aic3x_set_dai_sysclk, + .set_fmt = aic3x_set_dai_fmt, + } +}; +EXPORT_SYMBOL_GPL(aic3x_dai); + +static int aic3x_suspend(struct platform_device *pdev, pm_message_t state) +{ + struct snd_soc_device *socdev = platform_get_drvdata(pdev); + struct snd_soc_codec *codec = socdev->codec; + + aic3x_set_bias_level(codec, SND_SOC_BIAS_OFF); + + return 0; +} + +static int aic3x_resume(struct platform_device *pdev) +{ + struct snd_soc_device *socdev = platform_get_drvdata(pdev); + struct snd_soc_codec *codec = socdev->codec; + int i; + u8 data[2]; + u8 *cache = codec->reg_cache; + + /* Sync reg_cache with the hardware */ + for (i = 0; i < ARRAY_SIZE(aic3x_reg); i++) { + data[0] = i; + data[1] = cache[i]; + codec->hw_write(codec->control_data, data, 2); + } + + aic3x_set_bias_level(codec, codec->suspend_bias_level); + + return 0; +} + +/* + * initialise the AIC3X driver + * register the mixer and dsp interfaces with the kernel + */ +static int aic3x_init(struct snd_soc_device *socdev) +{ + struct snd_soc_codec *codec = socdev->codec; + struct aic3x_setup_data *setup = socdev->codec_data; + int reg, ret = 0; + + codec->name = "tlv320aic3x"; + codec->owner = THIS_MODULE; + codec->read = aic3x_read_reg_cache; + codec->write = aic3x_write; + codec->set_bias_level = aic3x_set_bias_level; + codec->dai = &aic3x_dai; + codec->num_dai = 1; + codec->reg_cache_size = ARRAY_SIZE(aic3x_reg); + codec->reg_cache = kmemdup(aic3x_reg, sizeof(aic3x_reg), GFP_KERNEL); + if (codec->reg_cache == NULL) + return -ENOMEM; + + aic3x_write(codec, AIC3X_PAGE_SELECT, PAGE0_SELECT); + aic3x_write(codec, AIC3X_RESET, SOFT_RESET); + + /* register pcms */ + ret = snd_soc_new_pcms(socdev, SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1); + if (ret < 0) { + printk(KERN_ERR "aic3x: failed to create pcms\n"); + goto pcm_err; + } + + /* DAC default volume and mute */ + aic3x_write(codec, LDAC_VOL, DEFAULT_VOL | MUTE_ON); + aic3x_write(codec, RDAC_VOL, DEFAULT_VOL | MUTE_ON); + + /* DAC to HP default volume and route to Output mixer */ + aic3x_write(codec, DACL1_2_HPLOUT_VOL, DEFAULT_VOL | ROUTE_ON); + aic3x_write(codec, DACR1_2_HPROUT_VOL, DEFAULT_VOL | ROUTE_ON); + aic3x_write(codec, DACL1_2_HPLCOM_VOL, DEFAULT_VOL | ROUTE_ON); + aic3x_write(codec, DACR1_2_HPRCOM_VOL, DEFAULT_VOL | ROUTE_ON); + /* DAC to Line Out default volume and route to Output mixer */ + aic3x_write(codec, DACL1_2_LLOPM_VOL, DEFAULT_VOL | ROUTE_ON); + aic3x_write(codec, DACR1_2_RLOPM_VOL, DEFAULT_VOL | ROUTE_ON); + /* DAC to Mono Line Out default volume and route to Output mixer */ + aic3x_write(codec, DACL1_2_MONOLOPM_VOL, DEFAULT_VOL | ROUTE_ON); + aic3x_write(codec, DACR1_2_MONOLOPM_VOL, DEFAULT_VOL | ROUTE_ON); + + /* unmute all outputs */ + reg = aic3x_read_reg_cache(codec, LLOPM_CTRL); + aic3x_write(codec, LLOPM_CTRL, reg | UNMUTE); + reg = aic3x_read_reg_cache(codec, RLOPM_CTRL); + aic3x_write(codec, RLOPM_CTRL, reg | UNMUTE); + reg = aic3x_read_reg_cache(codec, MONOLOPM_CTRL); + aic3x_write(codec, MONOLOPM_CTRL, reg | UNMUTE); + reg = aic3x_read_reg_cache(codec, HPLOUT_CTRL); + aic3x_write(codec, HPLOUT_CTRL, reg | UNMUTE); + reg = aic3x_read_reg_cache(codec, HPROUT_CTRL); + aic3x_write(codec, HPROUT_CTRL, reg | UNMUTE); + reg = aic3x_read_reg_cache(codec, HPLCOM_CTRL); + aic3x_write(codec, HPLCOM_CTRL, reg | UNMUTE); + reg = aic3x_read_reg_cache(codec, HPRCOM_CTRL); + aic3x_write(codec, HPRCOM_CTRL, reg | UNMUTE); + + /* ADC default volume and unmute */ + aic3x_write(codec, LADC_VOL, DEFAULT_GAIN); + aic3x_write(codec, RADC_VOL, DEFAULT_GAIN); + /* By default route Line1 to ADC PGA mixer */ + aic3x_write(codec, LINE1L_2_LADC_CTRL, 0x0); + aic3x_write(codec, LINE1R_2_RADC_CTRL, 0x0); + + /* PGA to HP Bypass default volume, disconnect from Output Mixer */ + aic3x_write(codec, PGAL_2_HPLOUT_VOL, DEFAULT_VOL); + aic3x_write(codec, PGAR_2_HPROUT_VOL, DEFAULT_VOL); + aic3x_write(codec, PGAL_2_HPLCOM_VOL, DEFAULT_VOL); + aic3x_write(codec, PGAR_2_HPRCOM_VOL, DEFAULT_VOL); + /* PGA to Line Out default volume, disconnect from Output Mixer */ + aic3x_write(codec, PGAL_2_LLOPM_VOL, DEFAULT_VOL); + aic3x_write(codec, PGAR_2_RLOPM_VOL, DEFAULT_VOL); + /* PGA to Mono Line Out default volume, disconnect from Output Mixer */ + aic3x_write(codec, PGAL_2_MONOLOPM_VOL, DEFAULT_VOL); + aic3x_write(codec, PGAR_2_MONOLOPM_VOL, DEFAULT_VOL); + + /* Line2 to HP Bypass default volume, disconnect from Output Mixer */ + aic3x_write(codec, LINE2L_2_HPLOUT_VOL, DEFAULT_VOL); + aic3x_write(codec, LINE2R_2_HPROUT_VOL, DEFAULT_VOL); + aic3x_write(codec, LINE2L_2_HPLCOM_VOL, DEFAULT_VOL); + aic3x_write(codec, LINE2R_2_HPRCOM_VOL, DEFAULT_VOL); + /* Line2 Line Out default volume, disconnect from Output Mixer */ + aic3x_write(codec, LINE2L_2_LLOPM_VOL, DEFAULT_VOL); + aic3x_write(codec, LINE2R_2_RLOPM_VOL, DEFAULT_VOL); + /* Line2 to Mono Out default volume, disconnect from Output Mixer */ + aic3x_write(codec, LINE2L_2_MONOLOPM_VOL, DEFAULT_VOL); + aic3x_write(codec, LINE2R_2_MONOLOPM_VOL, DEFAULT_VOL); + + /* off, with power on */ + aic3x_set_bias_level(codec, SND_SOC_BIAS_STANDBY); + + /* setup GPIO functions */ + aic3x_write(codec, AIC3X_GPIO1_REG, (setup->gpio_func[0] & 0xf) << 4); + aic3x_write(codec, AIC3X_GPIO2_REG, (setup->gpio_func[1] & 0xf) << 4); + + aic3x_add_controls(codec); + aic3x_add_widgets(codec); + ret = snd_soc_register_card(socdev); + if (ret < 0) { + printk(KERN_ERR "aic3x: failed to register card\n"); + goto card_err; + } + + return ret; + +card_err: + snd_soc_free_pcms(socdev); + snd_soc_dapm_free(socdev); +pcm_err: + kfree(codec->reg_cache); + return ret; +} + +static struct snd_soc_device *aic3x_socdev; + +#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) +/* + * AIC3X 2 wire address can be up to 4 devices with device addresses + * 0x18, 0x19, 0x1A, 0x1B + */ + +/* + * If the i2c layer weren't so broken, we could pass this kind of data + * around + */ +static int aic3x_i2c_probe(struct i2c_client *i2c, + const struct i2c_device_id *id) +{ + struct snd_soc_device *socdev = aic3x_socdev; + struct snd_soc_codec *codec = socdev->codec; + int ret; + + i2c_set_clientdata(i2c, codec); + codec->control_data = i2c; + + ret = aic3x_init(socdev); + if (ret < 0) + printk(KERN_ERR "aic3x: failed to initialise AIC3X\n"); + return ret; +} + +static int aic3x_i2c_remove(struct i2c_client *client) +{ + struct snd_soc_codec *codec = i2c_get_clientdata(client); + kfree(codec->reg_cache); + return 0; +} + +static const struct i2c_device_id aic3x_i2c_id[] = { + { "tlv320aic3x", 0 }, + { } +}; +MODULE_DEVICE_TABLE(i2c, aic3x_i2c_id); + +/* machine i2c codec control layer */ +static struct i2c_driver aic3x_i2c_driver = { + .driver = { + .name = "aic3x I2C Codec", + .owner = THIS_MODULE, + }, + .probe = aic3x_i2c_probe, + .remove = aic3x_i2c_remove, + .id_table = aic3x_i2c_id, +}; + +static int aic3x_i2c_read(struct i2c_client *client, u8 *value, int len) +{ + value[0] = i2c_smbus_read_byte_data(client, value[0]); + return (len == 1); +} + +static int aic3x_add_i2c_device(struct platform_device *pdev, + const struct aic3x_setup_data *setup) +{ + struct i2c_board_info info; + struct i2c_adapter *adapter; + struct i2c_client *client; + int ret; + + ret = i2c_add_driver(&aic3x_i2c_driver); + if (ret != 0) { + dev_err(&pdev->dev, "can't add i2c driver\n"); + return ret; + } + + memset(&info, 0, sizeof(struct i2c_board_info)); + info.addr = setup->i2c_address; + strlcpy(info.type, "tlv320aic3x", I2C_NAME_SIZE); + + adapter = i2c_get_adapter(setup->i2c_bus); + if (!adapter) { + dev_err(&pdev->dev, "can't get i2c adapter %d\n", + setup->i2c_bus); + goto err_driver; + } + + client = i2c_new_device(adapter, &info); + i2c_put_adapter(adapter); + if (!client) { + dev_err(&pdev->dev, "can't add i2c device at 0x%x\n", + (unsigned int)info.addr); + goto err_driver; + } + + return 0; + +err_driver: + i2c_del_driver(&aic3x_i2c_driver); + return -ENODEV; +} +#endif + +static int aic3x_probe(struct platform_device *pdev) +{ + struct snd_soc_device *socdev = platform_get_drvdata(pdev); + struct aic3x_setup_data *setup; + struct snd_soc_codec *codec; + struct aic3x_priv *aic3x; + int ret = 0; + + printk(KERN_INFO "AIC3X Audio Codec %s\n", AIC3X_VERSION); + + setup = socdev->codec_data; + codec = kzalloc(sizeof(struct snd_soc_codec), GFP_KERNEL); + if (codec == NULL) + return -ENOMEM; + + aic3x = kzalloc(sizeof(struct aic3x_priv), GFP_KERNEL); + if (aic3x == NULL) { + kfree(codec); + return -ENOMEM; + } + + codec->private_data = aic3x; + socdev->codec = codec; + mutex_init(&codec->mutex); + INIT_LIST_HEAD(&codec->dapm_widgets); + INIT_LIST_HEAD(&codec->dapm_paths); + + aic3x_socdev = socdev; +#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) + if (setup->i2c_address) { + codec->hw_write = (hw_write_t) i2c_master_send; + codec->hw_read = (hw_read_t) aic3x_i2c_read; + ret = aic3x_add_i2c_device(pdev, setup); + } +#else + /* Add other interfaces here */ +#endif + + if (ret != 0) { + kfree(codec->private_data); + kfree(codec); + } + return ret; +} + +static int aic3x_remove(struct platform_device *pdev) +{ + struct snd_soc_device *socdev = platform_get_drvdata(pdev); + struct snd_soc_codec *codec = socdev->codec; + + /* power down chip */ + if (codec->control_data) + aic3x_set_bias_level(codec, SND_SOC_BIAS_OFF); + + snd_soc_free_pcms(socdev); + snd_soc_dapm_free(socdev); +#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) + i2c_unregister_device(codec->control_data); + i2c_del_driver(&aic3x_i2c_driver); +#endif + kfree(codec->private_data); + kfree(codec); + + return 0; +} + +struct snd_soc_codec_device soc_codec_dev_aic3x = { + .probe = aic3x_probe, + .remove = aic3x_remove, + .suspend = aic3x_suspend, + .resume = aic3x_resume, +}; +EXPORT_SYMBOL_GPL(soc_codec_dev_aic3x); + +MODULE_DESCRIPTION("ASoC TLV320AIC3X codec driver"); +MODULE_AUTHOR("Vladimir Barinov"); +MODULE_LICENSE("GPL"); |
