diff options
Diffstat (limited to 'kernel/sound/soc/codecs/wm8753.c')
| -rw-r--r-- | kernel/sound/soc/codecs/wm8753.c | 1656 |
1 files changed, 1656 insertions, 0 deletions
diff --git a/kernel/sound/soc/codecs/wm8753.c b/kernel/sound/soc/codecs/wm8753.c new file mode 100644 index 000000000..c50a59593 --- /dev/null +++ b/kernel/sound/soc/codecs/wm8753.c @@ -0,0 +1,1656 @@ +/* + * wm8753.c -- WM8753 ALSA Soc Audio driver + * + * Copyright 2003-11 Wolfson Microelectronics PLC. + * Author: Liam Girdwood <lrg@slimlogic.co.uk> + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. + * + * Notes: + * The WM8753 is a low power, high quality stereo codec with integrated PCM + * codec designed for portable digital telephony applications. + * + * Dual DAI:- + * + * This driver support 2 DAI PCM's. This makes the default PCM available for + * HiFi audio (e.g. MP3, ogg) playback/capture and the other PCM available for + * voice. + * + * Please note that the voice PCM can be connected directly to a Bluetooth + * codec or GSM modem and thus cannot be read or written to, although it is + * available to be configured with snd_hw_params(), etc and kcontrols in the + * normal alsa manner. + * + * Fast DAI switching:- + * + * The driver can now fast switch between the DAI configurations via a + * an alsa kcontrol. This allows the PCM to remain open. + * + */ + +#include <linux/module.h> +#include <linux/moduleparam.h> +#include <linux/kernel.h> +#include <linux/init.h> +#include <linux/delay.h> +#include <linux/pm.h> +#include <linux/i2c.h> +#include <linux/of_device.h> +#include <linux/regmap.h> +#include <linux/spi/spi.h> +#include <linux/slab.h> +#include <sound/core.h> +#include <sound/pcm.h> +#include <sound/pcm_params.h> +#include <sound/soc.h> +#include <sound/initval.h> +#include <sound/tlv.h> +#include <asm/div64.h> + +#include "wm8753.h" + +static int caps_charge = 2000; +module_param(caps_charge, int, 0); +MODULE_PARM_DESC(caps_charge, "WM8753 cap charge time (msecs)"); + +static int wm8753_hifi_write_dai_fmt(struct snd_soc_codec *codec, + unsigned int fmt); +static int wm8753_voice_write_dai_fmt(struct snd_soc_codec *codec, + unsigned int fmt); + +/* + * wm8753 register cache + * We can't read the WM8753 register space when we + * are using 2 wire for device control, so we cache them instead. + */ +static const struct reg_default wm8753_reg_defaults[] = { + { 0x00, 0x0000 }, + { 0x01, 0x0008 }, + { 0x02, 0x0000 }, + { 0x03, 0x000a }, + { 0x04, 0x000a }, + { 0x05, 0x0033 }, + { 0x06, 0x0000 }, + { 0x07, 0x0007 }, + { 0x08, 0x00ff }, + { 0x09, 0x00ff }, + { 0x0a, 0x000f }, + { 0x0b, 0x000f }, + { 0x0c, 0x007b }, + { 0x0d, 0x0000 }, + { 0x0e, 0x0032 }, + { 0x0f, 0x0000 }, + { 0x10, 0x00c3 }, + { 0x11, 0x00c3 }, + { 0x12, 0x00c0 }, + { 0x13, 0x0000 }, + { 0x14, 0x0000 }, + { 0x15, 0x0000 }, + { 0x16, 0x0000 }, + { 0x17, 0x0000 }, + { 0x18, 0x0000 }, + { 0x19, 0x0000 }, + { 0x1a, 0x0000 }, + { 0x1b, 0x0000 }, + { 0x1c, 0x0000 }, + { 0x1d, 0x0000 }, + { 0x1e, 0x0000 }, + { 0x1f, 0x0000 }, + { 0x20, 0x0055 }, + { 0x21, 0x0005 }, + { 0x22, 0x0050 }, + { 0x23, 0x0055 }, + { 0x24, 0x0050 }, + { 0x25, 0x0055 }, + { 0x26, 0x0050 }, + { 0x27, 0x0055 }, + { 0x28, 0x0079 }, + { 0x29, 0x0079 }, + { 0x2a, 0x0079 }, + { 0x2b, 0x0079 }, + { 0x2c, 0x0079 }, + { 0x2d, 0x0000 }, + { 0x2e, 0x0000 }, + { 0x2f, 0x0000 }, + { 0x30, 0x0000 }, + { 0x31, 0x0097 }, + { 0x32, 0x0097 }, + { 0x33, 0x0000 }, + { 0x34, 0x0004 }, + { 0x35, 0x0000 }, + { 0x36, 0x0083 }, + { 0x37, 0x0024 }, + { 0x38, 0x01ba }, + { 0x39, 0x0000 }, + { 0x3a, 0x0083 }, + { 0x3b, 0x0024 }, + { 0x3c, 0x01ba }, + { 0x3d, 0x0000 }, + { 0x3e, 0x0000 }, + { 0x3f, 0x0000 }, +}; + +static bool wm8753_volatile(struct device *dev, unsigned int reg) +{ + return reg == WM8753_RESET; +} + +static bool wm8753_writeable(struct device *dev, unsigned int reg) +{ + return reg <= WM8753_ADCTL2; +} + +/* codec private data */ +struct wm8753_priv { + struct regmap *regmap; + unsigned int sysclk; + unsigned int pcmclk; + + unsigned int voice_fmt; + unsigned int hifi_fmt; + + int dai_func; + struct delayed_work charge_work; +}; + +#define wm8753_reset(c) snd_soc_write(c, WM8753_RESET, 0) + +/* + * WM8753 Controls + */ +static const char *wm8753_base[] = {"Linear Control", "Adaptive Boost"}; +static const char *wm8753_base_filter[] = + {"130Hz @ 48kHz", "200Hz @ 48kHz", "100Hz @ 16kHz", "400Hz @ 48kHz", + "100Hz @ 8kHz", "200Hz @ 8kHz"}; +static const char *wm8753_treble[] = {"8kHz", "4kHz"}; +static const char *wm8753_alc_func[] = {"Off", "Right", "Left", "Stereo"}; +static const char *wm8753_ng_type[] = {"Constant PGA Gain", "Mute ADC Output"}; +static const char *wm8753_3d_func[] = {"Capture", "Playback"}; +static const char *wm8753_3d_uc[] = {"2.2kHz", "1.5kHz"}; +static const char *wm8753_3d_lc[] = {"200Hz", "500Hz"}; +static const char *wm8753_deemp[] = {"None", "32kHz", "44.1kHz", "48kHz"}; +static const char *wm8753_mono_mix[] = {"Stereo", "Left", "Right", "Mono"}; +static const char *wm8753_dac_phase[] = {"Non Inverted", "Inverted"}; +static const char *wm8753_line_mix[] = {"Line 1 + 2", "Line 1 - 2", + "Line 1", "Line 2"}; +static const char *wm8753_mono_mux[] = {"Line Mix", "Rx Mix"}; +static const char *wm8753_right_mux[] = {"Line 2", "Rx Mix"}; +static const char *wm8753_left_mux[] = {"Line 1", "Rx Mix"}; +static const char *wm8753_rxmsel[] = {"RXP - RXN", "RXP + RXN", "RXP", "RXN"}; +static const char *wm8753_sidetone_mux[] = {"Left PGA", "Mic 1", "Mic 2", + "Right PGA"}; +static const char *wm8753_mono2_src[] = {"Inverted Mono 1", "Left", "Right", + "Left + Right"}; +static const char *wm8753_out3[] = {"VREF", "ROUT2", "Left + Right"}; +static const char *wm8753_out4[] = {"VREF", "Capture ST", "LOUT2"}; +static const char *wm8753_radcsel[] = {"PGA", "Line or RXP-RXN", "Sidetone"}; +static const char *wm8753_ladcsel[] = {"PGA", "Line or RXP-RXN", "Line"}; +static const char *wm8753_mono_adc[] = {"Stereo", "Analogue Mix Left", + "Analogue Mix Right", "Digital Mono Mix"}; +static const char *wm8753_adc_hp[] = {"3.4Hz @ 48kHz", "82Hz @ 16k", + "82Hz @ 8kHz", "170Hz @ 8kHz"}; +static const char *wm8753_adc_filter[] = {"HiFi", "Voice"}; +static const char *wm8753_mic_sel[] = {"Mic 1", "Mic 2", "Mic 3"}; +static const char *wm8753_dai_mode[] = {"DAI 0", "DAI 1", "DAI 2", "DAI 3"}; +static const char *wm8753_dat_sel[] = {"Stereo", "Left ADC", "Right ADC", + "Channel Swap"}; +static const char *wm8753_rout2_phase[] = {"Non Inverted", "Inverted"}; + +static const struct soc_enum wm8753_enum[] = { +SOC_ENUM_SINGLE(WM8753_BASS, 7, 2, wm8753_base), +SOC_ENUM_SINGLE(WM8753_BASS, 4, 6, wm8753_base_filter), +SOC_ENUM_SINGLE(WM8753_TREBLE, 6, 2, wm8753_treble), +SOC_ENUM_SINGLE(WM8753_ALC1, 7, 4, wm8753_alc_func), +SOC_ENUM_SINGLE(WM8753_NGATE, 1, 2, wm8753_ng_type), +SOC_ENUM_SINGLE(WM8753_3D, 7, 2, wm8753_3d_func), +SOC_ENUM_SINGLE(WM8753_3D, 6, 2, wm8753_3d_uc), +SOC_ENUM_SINGLE(WM8753_3D, 5, 2, wm8753_3d_lc), +SOC_ENUM_SINGLE(WM8753_DAC, 1, 4, wm8753_deemp), +SOC_ENUM_SINGLE(WM8753_DAC, 4, 4, wm8753_mono_mix), +SOC_ENUM_SINGLE(WM8753_DAC, 6, 2, wm8753_dac_phase), +SOC_ENUM_SINGLE(WM8753_INCTL1, 3, 4, wm8753_line_mix), +SOC_ENUM_SINGLE(WM8753_INCTL1, 2, 2, wm8753_mono_mux), +SOC_ENUM_SINGLE(WM8753_INCTL1, 1, 2, wm8753_right_mux), +SOC_ENUM_SINGLE(WM8753_INCTL1, 0, 2, wm8753_left_mux), +SOC_ENUM_SINGLE(WM8753_INCTL2, 6, 4, wm8753_rxmsel), +SOC_ENUM_SINGLE(WM8753_INCTL2, 4, 4, wm8753_sidetone_mux), +SOC_ENUM_SINGLE(WM8753_OUTCTL, 7, 4, wm8753_mono2_src), +SOC_ENUM_SINGLE(WM8753_OUTCTL, 0, 3, wm8753_out3), +SOC_ENUM_SINGLE(WM8753_ADCTL2, 7, 3, wm8753_out4), +SOC_ENUM_SINGLE(WM8753_ADCIN, 2, 3, wm8753_radcsel), +SOC_ENUM_SINGLE(WM8753_ADCIN, 0, 3, wm8753_ladcsel), +SOC_ENUM_SINGLE(WM8753_ADCIN, 4, 4, wm8753_mono_adc), +SOC_ENUM_SINGLE(WM8753_ADC, 2, 4, wm8753_adc_hp), +SOC_ENUM_SINGLE(WM8753_ADC, 4, 2, wm8753_adc_filter), +SOC_ENUM_SINGLE(WM8753_MICBIAS, 6, 3, wm8753_mic_sel), +SOC_ENUM_SINGLE(WM8753_IOCTL, 2, 4, wm8753_dai_mode), +SOC_ENUM_SINGLE(WM8753_ADC, 7, 4, wm8753_dat_sel), +SOC_ENUM_SINGLE(WM8753_OUTCTL, 2, 2, wm8753_rout2_phase), +}; + + +static int wm8753_get_dai(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol); + struct wm8753_priv *wm8753 = snd_soc_codec_get_drvdata(codec); + + ucontrol->value.integer.value[0] = wm8753->dai_func; + return 0; +} + +static int wm8753_set_dai(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol); + struct wm8753_priv *wm8753 = snd_soc_codec_get_drvdata(codec); + u16 ioctl; + + if (wm8753->dai_func == ucontrol->value.integer.value[0]) + return 0; + + if (snd_soc_codec_is_active(codec)) + return -EBUSY; + + ioctl = snd_soc_read(codec, WM8753_IOCTL); + + wm8753->dai_func = ucontrol->value.integer.value[0]; + + if (((ioctl >> 2) & 0x3) == wm8753->dai_func) + return 1; + + ioctl = (ioctl & 0x1f3) | (wm8753->dai_func << 2); + snd_soc_write(codec, WM8753_IOCTL, ioctl); + + + wm8753_hifi_write_dai_fmt(codec, wm8753->hifi_fmt); + wm8753_voice_write_dai_fmt(codec, wm8753->voice_fmt); + + return 1; +} + +static const DECLARE_TLV_DB_SCALE(rec_mix_tlv, -1500, 300, 0); +static const DECLARE_TLV_DB_SCALE(mic_preamp_tlv, 1200, 600, 0); +static const DECLARE_TLV_DB_SCALE(adc_tlv, -9750, 50, 1); +static const DECLARE_TLV_DB_SCALE(dac_tlv, -12750, 50, 1); +static const unsigned int out_tlv[] = { + TLV_DB_RANGE_HEAD(2), + /* 0000000 - 0101111 = "Analogue mute" */ + 0, 48, TLV_DB_SCALE_ITEM(-25500, 0, 0), + 48, 127, TLV_DB_SCALE_ITEM(-7300, 100, 0), +}; +static const DECLARE_TLV_DB_SCALE(mix_tlv, -1500, 300, 0); +static const DECLARE_TLV_DB_SCALE(voice_mix_tlv, -1200, 300, 0); +static const DECLARE_TLV_DB_SCALE(pga_tlv, -1725, 75, 0); + +static const struct snd_kcontrol_new wm8753_snd_controls[] = { +SOC_DOUBLE_R_TLV("PCM Volume", WM8753_LDAC, WM8753_RDAC, 0, 255, 0, dac_tlv), + +SOC_DOUBLE_R_TLV("ADC Capture Volume", WM8753_LADC, WM8753_RADC, 0, 255, 0, + adc_tlv), + +SOC_DOUBLE_R_TLV("Headphone Playback Volume", WM8753_LOUT1V, WM8753_ROUT1V, + 0, 127, 0, out_tlv), +SOC_DOUBLE_R_TLV("Speaker Playback Volume", WM8753_LOUT2V, WM8753_ROUT2V, 0, + 127, 0, out_tlv), + +SOC_SINGLE_TLV("Mono Playback Volume", WM8753_MOUTV, 0, 127, 0, out_tlv), + +SOC_DOUBLE_R_TLV("Bypass Playback Volume", WM8753_LOUTM1, WM8753_ROUTM1, 4, 7, + 1, mix_tlv), +SOC_DOUBLE_R_TLV("Sidetone Playback Volume", WM8753_LOUTM2, WM8753_ROUTM2, 4, + 7, 1, mix_tlv), +SOC_DOUBLE_R_TLV("Voice Playback Volume", WM8753_LOUTM2, WM8753_ROUTM2, 0, 7, + 1, voice_mix_tlv), + +SOC_DOUBLE_R("Headphone Playback ZC Switch", WM8753_LOUT1V, WM8753_ROUT1V, 7, + 1, 0), +SOC_DOUBLE_R("Speaker Playback ZC Switch", WM8753_LOUT2V, WM8753_ROUT2V, 7, + 1, 0), + +SOC_SINGLE_TLV("Mono Bypass Playback Volume", WM8753_MOUTM1, 4, 7, 1, mix_tlv), +SOC_SINGLE_TLV("Mono Sidetone Playback Volume", WM8753_MOUTM2, 4, 7, 1, + mix_tlv), +SOC_SINGLE_TLV("Mono Voice Playback Volume", WM8753_MOUTM2, 0, 7, 1, + voice_mix_tlv), +SOC_SINGLE("Mono Playback ZC Switch", WM8753_MOUTV, 7, 1, 0), + +SOC_ENUM("Bass Boost", wm8753_enum[0]), +SOC_ENUM("Bass Filter", wm8753_enum[1]), +SOC_SINGLE("Bass Volume", WM8753_BASS, 0, 15, 1), + +SOC_SINGLE("Treble Volume", WM8753_TREBLE, 0, 15, 1), +SOC_ENUM("Treble Cut-off", wm8753_enum[2]), + +SOC_DOUBLE_TLV("Sidetone Capture Volume", WM8753_RECMIX1, 0, 4, 7, 1, + rec_mix_tlv), +SOC_SINGLE_TLV("Voice Sidetone Capture Volume", WM8753_RECMIX2, 0, 7, 1, + rec_mix_tlv), + +SOC_DOUBLE_R_TLV("Capture Volume", WM8753_LINVOL, WM8753_RINVOL, 0, 63, 0, + pga_tlv), +SOC_DOUBLE_R("Capture ZC Switch", WM8753_LINVOL, WM8753_RINVOL, 6, 1, 0), +SOC_DOUBLE_R("Capture Switch", WM8753_LINVOL, WM8753_RINVOL, 7, 1, 1), + +SOC_ENUM("Capture Filter Select", wm8753_enum[23]), +SOC_ENUM("Capture Filter Cut-off", wm8753_enum[24]), +SOC_SINGLE("Capture Filter Switch", WM8753_ADC, 0, 1, 1), + +SOC_SINGLE("ALC Capture Target Volume", WM8753_ALC1, 0, 7, 0), +SOC_SINGLE("ALC Capture Max Volume", WM8753_ALC1, 4, 7, 0), +SOC_ENUM("ALC Capture Function", wm8753_enum[3]), +SOC_SINGLE("ALC Capture ZC Switch", WM8753_ALC2, 8, 1, 0), +SOC_SINGLE("ALC Capture Hold Time", WM8753_ALC2, 0, 15, 1), +SOC_SINGLE("ALC Capture Decay Time", WM8753_ALC3, 4, 15, 1), +SOC_SINGLE("ALC Capture Attack Time", WM8753_ALC3, 0, 15, 0), +SOC_SINGLE("ALC Capture NG Threshold", WM8753_NGATE, 3, 31, 0), +SOC_ENUM("ALC Capture NG Type", wm8753_enum[4]), +SOC_SINGLE("ALC Capture NG Switch", WM8753_NGATE, 0, 1, 0), + +SOC_ENUM("3D Function", wm8753_enum[5]), +SOC_ENUM("3D Upper Cut-off", wm8753_enum[6]), +SOC_ENUM("3D Lower Cut-off", wm8753_enum[7]), +SOC_SINGLE("3D Volume", WM8753_3D, 1, 15, 0), +SOC_SINGLE("3D Switch", WM8753_3D, 0, 1, 0), + +SOC_SINGLE("Capture 6dB Attenuate", WM8753_ADCTL1, 2, 1, 0), +SOC_SINGLE("Playback 6dB Attenuate", WM8753_ADCTL1, 1, 1, 0), + +SOC_ENUM("De-emphasis", wm8753_enum[8]), +SOC_ENUM("Playback Mono Mix", wm8753_enum[9]), +SOC_ENUM("Playback Phase", wm8753_enum[10]), + +SOC_SINGLE_TLV("Mic2 Capture Volume", WM8753_INCTL1, 7, 3, 0, mic_preamp_tlv), +SOC_SINGLE_TLV("Mic1 Capture Volume", WM8753_INCTL1, 5, 3, 0, mic_preamp_tlv), + +SOC_ENUM_EXT("DAI Mode", wm8753_enum[26], wm8753_get_dai, wm8753_set_dai), + +SOC_ENUM("ADC Data Select", wm8753_enum[27]), +SOC_ENUM("ROUT2 Phase", wm8753_enum[28]), +}; + +/* + * _DAPM_ Controls + */ + +/* Left Mixer */ +static const struct snd_kcontrol_new wm8753_left_mixer_controls[] = { +SOC_DAPM_SINGLE("Voice Playback Switch", WM8753_LOUTM2, 8, 1, 0), +SOC_DAPM_SINGLE("Sidetone Playback Switch", WM8753_LOUTM2, 7, 1, 0), +SOC_DAPM_SINGLE("Left Playback Switch", WM8753_LOUTM1, 8, 1, 0), +SOC_DAPM_SINGLE("Bypass Playback Switch", WM8753_LOUTM1, 7, 1, 0), +}; + +/* Right mixer */ +static const struct snd_kcontrol_new wm8753_right_mixer_controls[] = { +SOC_DAPM_SINGLE("Voice Playback Switch", WM8753_ROUTM2, 8, 1, 0), +SOC_DAPM_SINGLE("Sidetone Playback Switch", WM8753_ROUTM2, 7, 1, 0), +SOC_DAPM_SINGLE("Right Playback Switch", WM8753_ROUTM1, 8, 1, 0), +SOC_DAPM_SINGLE("Bypass Playback Switch", WM8753_ROUTM1, 7, 1, 0), +}; + +/* Mono mixer */ +static const struct snd_kcontrol_new wm8753_mono_mixer_controls[] = { +SOC_DAPM_SINGLE("Left Playback Switch", WM8753_MOUTM1, 8, 1, 0), +SOC_DAPM_SINGLE("Right Playback Switch", WM8753_MOUTM2, 8, 1, 0), +SOC_DAPM_SINGLE("Voice Playback Switch", WM8753_MOUTM2, 3, 1, 0), +SOC_DAPM_SINGLE("Sidetone Playback Switch", WM8753_MOUTM2, 7, 1, 0), +SOC_DAPM_SINGLE("Bypass Playback Switch", WM8753_MOUTM1, 7, 1, 0), +}; + +/* Mono 2 Mux */ +static const struct snd_kcontrol_new wm8753_mono2_controls = +SOC_DAPM_ENUM("Route", wm8753_enum[17]); + +/* Out 3 Mux */ +static const struct snd_kcontrol_new wm8753_out3_controls = +SOC_DAPM_ENUM("Route", wm8753_enum[18]); + +/* Out 4 Mux */ +static const struct snd_kcontrol_new wm8753_out4_controls = +SOC_DAPM_ENUM("Route", wm8753_enum[19]); + +/* ADC Mono Mix */ +static const struct snd_kcontrol_new wm8753_adc_mono_controls = +SOC_DAPM_ENUM("Route", wm8753_enum[22]); + +/* Record mixer */ +static const struct snd_kcontrol_new wm8753_record_mixer_controls[] = { +SOC_DAPM_SINGLE("Voice Capture Switch", WM8753_RECMIX2, 3, 1, 0), +SOC_DAPM_SINGLE("Left Capture Switch", WM8753_RECMIX1, 3, 1, 0), +SOC_DAPM_SINGLE("Right Capture Switch", WM8753_RECMIX1, 7, 1, 0), +}; + +/* Left ADC mux */ +static const struct snd_kcontrol_new wm8753_adc_left_controls = +SOC_DAPM_ENUM("Route", wm8753_enum[21]); + +/* Right ADC mux */ +static const struct snd_kcontrol_new wm8753_adc_right_controls = +SOC_DAPM_ENUM("Route", wm8753_enum[20]); + +/* MIC mux */ +static const struct snd_kcontrol_new wm8753_mic_mux_controls = +SOC_DAPM_ENUM("Route", wm8753_enum[16]); + +/* ALC mixer */ +static const struct snd_kcontrol_new wm8753_alc_mixer_controls[] = { +SOC_DAPM_SINGLE("Line Capture Switch", WM8753_INCTL2, 3, 1, 0), +SOC_DAPM_SINGLE("Mic2 Capture Switch", WM8753_INCTL2, 2, 1, 0), +SOC_DAPM_SINGLE("Mic1 Capture Switch", WM8753_INCTL2, 1, 1, 0), +SOC_DAPM_SINGLE("Rx Capture Switch", WM8753_INCTL2, 0, 1, 0), +}; + +/* Left Line mux */ +static const struct snd_kcontrol_new wm8753_line_left_controls = +SOC_DAPM_ENUM("Route", wm8753_enum[14]); + +/* Right Line mux */ +static const struct snd_kcontrol_new wm8753_line_right_controls = +SOC_DAPM_ENUM("Route", wm8753_enum[13]); + +/* Mono Line mux */ +static const struct snd_kcontrol_new wm8753_line_mono_controls = +SOC_DAPM_ENUM("Route", wm8753_enum[12]); + +/* Line mux and mixer */ +static const struct snd_kcontrol_new wm8753_line_mux_mix_controls = +SOC_DAPM_ENUM("Route", wm8753_enum[11]); + +/* Rx mux and mixer */ +static const struct snd_kcontrol_new wm8753_rx_mux_mix_controls = +SOC_DAPM_ENUM("Route", wm8753_enum[15]); + +/* Mic Selector Mux */ +static const struct snd_kcontrol_new wm8753_mic_sel_mux_controls = +SOC_DAPM_ENUM("Route", wm8753_enum[25]); + +static const struct snd_soc_dapm_widget wm8753_dapm_widgets[] = { +SND_SOC_DAPM_MICBIAS("Mic Bias", WM8753_PWR1, 5, 0), +SND_SOC_DAPM_MIXER("Left Mixer", WM8753_PWR4, 0, 0, + &wm8753_left_mixer_controls[0], ARRAY_SIZE(wm8753_left_mixer_controls)), +SND_SOC_DAPM_PGA("Left Out 1", WM8753_PWR3, 8, 0, NULL, 0), +SND_SOC_DAPM_PGA("Left Out 2", WM8753_PWR3, 6, 0, NULL, 0), +SND_SOC_DAPM_DAC("Left DAC", "Left HiFi Playback", WM8753_PWR1, 3, 0), +SND_SOC_DAPM_OUTPUT("LOUT1"), +SND_SOC_DAPM_OUTPUT("LOUT2"), +SND_SOC_DAPM_MIXER("Right Mixer", WM8753_PWR4, 1, 0, + &wm8753_right_mixer_controls[0], ARRAY_SIZE(wm8753_right_mixer_controls)), +SND_SOC_DAPM_PGA("Right Out 1", WM8753_PWR3, 7, 0, NULL, 0), +SND_SOC_DAPM_PGA("Right Out 2", WM8753_PWR3, 5, 0, NULL, 0), +SND_SOC_DAPM_DAC("Right DAC", "Right HiFi Playback", WM8753_PWR1, 2, 0), +SND_SOC_DAPM_OUTPUT("ROUT1"), +SND_SOC_DAPM_OUTPUT("ROUT2"), +SND_SOC_DAPM_MIXER("Mono Mixer", WM8753_PWR4, 2, 0, + &wm8753_mono_mixer_controls[0], ARRAY_SIZE(wm8753_mono_mixer_controls)), +SND_SOC_DAPM_PGA("Mono Out 1", WM8753_PWR3, 2, 0, NULL, 0), +SND_SOC_DAPM_PGA("Mono Out 2", WM8753_PWR3, 1, 0, NULL, 0), +SND_SOC_DAPM_DAC("Voice DAC", "Voice Playback", WM8753_PWR1, 4, 0), +SND_SOC_DAPM_OUTPUT("MONO1"), +SND_SOC_DAPM_MUX("Mono 2 Mux", SND_SOC_NOPM, 0, 0, &wm8753_mono2_controls), +SND_SOC_DAPM_OUTPUT("MONO2"), +SND_SOC_DAPM_MIXER("Out3 Left + Right", -1, 0, 0, NULL, 0), +SND_SOC_DAPM_MUX("Out3 Mux", SND_SOC_NOPM, 0, 0, &wm8753_out3_controls), +SND_SOC_DAPM_PGA("Out 3", WM8753_PWR3, 4, 0, NULL, 0), +SND_SOC_DAPM_OUTPUT("OUT3"), +SND_SOC_DAPM_MUX("Out4 Mux", SND_SOC_NOPM, 0, 0, &wm8753_out4_controls), +SND_SOC_DAPM_PGA("Out 4", WM8753_PWR3, 3, 0, NULL, 0), +SND_SOC_DAPM_OUTPUT("OUT4"), +SND_SOC_DAPM_MIXER("Playback Mixer", WM8753_PWR4, 3, 0, + &wm8753_record_mixer_controls[0], + ARRAY_SIZE(wm8753_record_mixer_controls)), +SND_SOC_DAPM_ADC("Left ADC", "Left Capture", WM8753_PWR2, 3, 0), +SND_SOC_DAPM_ADC("Right ADC", "Right Capture", WM8753_PWR2, 2, 0), +SND_SOC_DAPM_MUX("Capture Left Mixer", SND_SOC_NOPM, 0, 0, + &wm8753_adc_mono_controls), +SND_SOC_DAPM_MUX("Capture Right Mixer", SND_SOC_NOPM, 0, 0, + &wm8753_adc_mono_controls), +SND_SOC_DAPM_MUX("Capture Left Mux", SND_SOC_NOPM, 0, 0, + &wm8753_adc_left_controls), +SND_SOC_DAPM_MUX("Capture Right Mux", SND_SOC_NOPM, 0, 0, + &wm8753_adc_right_controls), +SND_SOC_DAPM_MUX("Mic Sidetone Mux", SND_SOC_NOPM, 0, 0, + &wm8753_mic_mux_controls), +SND_SOC_DAPM_PGA("Left Capture Volume", WM8753_PWR2, 5, 0, NULL, 0), +SND_SOC_DAPM_PGA("Right Capture Volume", WM8753_PWR2, 4, 0, NULL, 0), +SND_SOC_DAPM_MIXER("ALC Mixer", WM8753_PWR2, 6, 0, + &wm8753_alc_mixer_controls[0], ARRAY_SIZE(wm8753_alc_mixer_controls)), +SND_SOC_DAPM_MUX("Line Left Mux", SND_SOC_NOPM, 0, 0, + &wm8753_line_left_controls), +SND_SOC_DAPM_MUX("Line Right Mux", SND_SOC_NOPM, 0, 0, + &wm8753_line_right_controls), +SND_SOC_DAPM_MUX("Line Mono Mux", SND_SOC_NOPM, 0, 0, + &wm8753_line_mono_controls), +SND_SOC_DAPM_MUX("Line Mixer", WM8753_PWR2, 0, 0, + &wm8753_line_mux_mix_controls), +SND_SOC_DAPM_MUX("Rx Mixer", WM8753_PWR2, 1, 0, + &wm8753_rx_mux_mix_controls), +SND_SOC_DAPM_PGA("Mic 1 Volume", WM8753_PWR2, 8, 0, NULL, 0), +SND_SOC_DAPM_PGA("Mic 2 Volume", WM8753_PWR2, 7, 0, NULL, 0), +SND_SOC_DAPM_MUX("Mic Selection Mux", SND_SOC_NOPM, 0, 0, + &wm8753_mic_sel_mux_controls), +SND_SOC_DAPM_INPUT("LINE1"), +SND_SOC_DAPM_INPUT("LINE2"), +SND_SOC_DAPM_INPUT("RXP"), +SND_SOC_DAPM_INPUT("RXN"), +SND_SOC_DAPM_INPUT("ACIN"), +SND_SOC_DAPM_OUTPUT("ACOP"), +SND_SOC_DAPM_INPUT("MIC1N"), +SND_SOC_DAPM_INPUT("MIC1"), +SND_SOC_DAPM_INPUT("MIC2N"), +SND_SOC_DAPM_INPUT("MIC2"), +SND_SOC_DAPM_VMID("VREF"), +}; + +static const struct snd_soc_dapm_route wm8753_dapm_routes[] = { + /* left mixer */ + {"Left Mixer", "Left Playback Switch", "Left DAC"}, + {"Left Mixer", "Voice Playback Switch", "Voice DAC"}, + {"Left Mixer", "Sidetone Playback Switch", "Mic Sidetone Mux"}, + {"Left Mixer", "Bypass Playback Switch", "Line Left Mux"}, + + /* right mixer */ + {"Right Mixer", "Right Playback Switch", "Right DAC"}, + {"Right Mixer", "Voice Playback Switch", "Voice DAC"}, + {"Right Mixer", "Sidetone Playback Switch", "Mic Sidetone Mux"}, + {"Right Mixer", "Bypass Playback Switch", "Line Right Mux"}, + + /* mono mixer */ + {"Mono Mixer", "Voice Playback Switch", "Voice DAC"}, + {"Mono Mixer", "Left Playback Switch", "Left DAC"}, + {"Mono Mixer", "Right Playback Switch", "Right DAC"}, + {"Mono Mixer", "Sidetone Playback Switch", "Mic Sidetone Mux"}, + {"Mono Mixer", "Bypass Playback Switch", "Line Mono Mux"}, + + /* left out */ + {"Left Out 1", NULL, "Left Mixer"}, + {"Left Out 2", NULL, "Left Mixer"}, + {"LOUT1", NULL, "Left Out 1"}, + {"LOUT2", NULL, "Left Out 2"}, + + /* right out */ + {"Right Out 1", NULL, "Right Mixer"}, + {"Right Out 2", NULL, "Right Mixer"}, + {"ROUT1", NULL, "Right Out 1"}, + {"ROUT2", NULL, "Right Out 2"}, + + /* mono 1 out */ + {"Mono Out 1", NULL, "Mono Mixer"}, + {"MONO1", NULL, "Mono Out 1"}, + + /* mono 2 out */ + {"Mono 2 Mux", "Left + Right", "Out3 Left + Right"}, + {"Mono 2 Mux", "Inverted Mono 1", "MONO1"}, + {"Mono 2 Mux", "Left", "Left Mixer"}, + {"Mono 2 Mux", "Right", "Right Mixer"}, + {"Mono Out 2", NULL, "Mono 2 Mux"}, + {"MONO2", NULL, "Mono Out 2"}, + + /* out 3 */ + {"Out3 Left + Right", NULL, "Left Mixer"}, + {"Out3 Left + Right", NULL, "Right Mixer"}, + {"Out3 Mux", "VREF", "VREF"}, + {"Out3 Mux", "Left + Right", "Out3 Left + Right"}, + {"Out3 Mux", "ROUT2", "ROUT2"}, + {"Out 3", NULL, "Out3 Mux"}, + {"OUT3", NULL, "Out 3"}, + + /* out 4 */ + {"Out4 Mux", "VREF", "VREF"}, + {"Out4 Mux", "Capture ST", "Playback Mixer"}, + {"Out4 Mux", "LOUT2", "LOUT2"}, + {"Out 4", NULL, "Out4 Mux"}, + {"OUT4", NULL, "Out 4"}, + + /* record mixer */ + {"Playback Mixer", "Left Capture Switch", "Left Mixer"}, + {"Playback Mixer", "Voice Capture Switch", "Mono Mixer"}, + {"Playback Mixer", "Right Capture Switch", "Right Mixer"}, + + /* Mic/SideTone Mux */ + {"Mic Sidetone Mux", "Left PGA", "Left Capture Volume"}, + {"Mic Sidetone Mux", "Right PGA", "Right Capture Volume"}, + {"Mic Sidetone Mux", "Mic 1", "Mic 1 Volume"}, + {"Mic Sidetone Mux", "Mic 2", "Mic 2 Volume"}, + + /* Capture Left Mux */ + {"Capture Left Mux", "PGA", "Left Capture Volume"}, + {"Capture Left Mux", "Line or RXP-RXN", "Line Left Mux"}, + {"Capture Left Mux", "Line", "LINE1"}, + + /* Capture Right Mux */ + {"Capture Right Mux", "PGA", "Right Capture Volume"}, + {"Capture Right Mux", "Line or RXP-RXN", "Line Right Mux"}, + {"Capture Right Mux", "Sidetone", "Playback Mixer"}, + + /* Mono Capture mixer-mux */ + {"Capture Right Mixer", "Stereo", "Capture Right Mux"}, + {"Capture Left Mixer", "Stereo", "Capture Left Mux"}, + {"Capture Left Mixer", "Analogue Mix Left", "Capture Left Mux"}, + {"Capture Left Mixer", "Analogue Mix Left", "Capture Right Mux"}, + {"Capture Right Mixer", "Analogue Mix Right", "Capture Left Mux"}, + {"Capture Right Mixer", "Analogue Mix Right", "Capture Right Mux"}, + {"Capture Left Mixer", "Digital Mono Mix", "Capture Left Mux"}, + {"Capture Left Mixer", "Digital Mono Mix", "Capture Right Mux"}, + {"Capture Right Mixer", "Digital Mono Mix", "Capture Left Mux"}, + {"Capture Right Mixer", "Digital Mono Mix", "Capture Right Mux"}, + + /* ADC */ + {"Left ADC", NULL, "Capture Left Mixer"}, + {"Right ADC", NULL, "Capture Right Mixer"}, + + /* Left Capture Volume */ + {"Left Capture Volume", NULL, "ACIN"}, + + /* Right Capture Volume */ + {"Right Capture Volume", NULL, "Mic 2 Volume"}, + + /* ALC Mixer */ + {"ALC Mixer", "Line Capture Switch", "Line Mixer"}, + {"ALC Mixer", "Mic2 Capture Switch", "Mic 2 Volume"}, + {"ALC Mixer", "Mic1 Capture Switch", "Mic 1 Volume"}, + {"ALC Mixer", "Rx Capture Switch", "Rx Mixer"}, + + /* Line Left Mux */ + {"Line Left Mux", "Line 1", "LINE1"}, + {"Line Left Mux", "Rx Mix", "Rx Mixer"}, + + /* Line Right Mux */ + {"Line Right Mux", "Line 2", "LINE2"}, + {"Line Right Mux", "Rx Mix", "Rx Mixer"}, + + /* Line Mono Mux */ + {"Line Mono Mux", "Line Mix", "Line Mixer"}, + {"Line Mono Mux", "Rx Mix", "Rx Mixer"}, + + /* Line Mixer/Mux */ + {"Line Mixer", "Line 1 + 2", "LINE1"}, + {"Line Mixer", "Line 1 - 2", "LINE1"}, + {"Line Mixer", "Line 1 + 2", "LINE2"}, + {"Line Mixer", "Line 1 - 2", "LINE2"}, + {"Line Mixer", "Line 1", "LINE1"}, + {"Line Mixer", "Line 2", "LINE2"}, + + /* Rx Mixer/Mux */ + {"Rx Mixer", "RXP - RXN", "RXP"}, + {"Rx Mixer", "RXP + RXN", "RXP"}, + {"Rx Mixer", "RXP - RXN", "RXN"}, + {"Rx Mixer", "RXP + RXN", "RXN"}, + {"Rx Mixer", "RXP", "RXP"}, + {"Rx Mixer", "RXN", "RXN"}, + + /* Mic 1 Volume */ + {"Mic 1 Volume", NULL, "MIC1N"}, + {"Mic 1 Volume", NULL, "Mic Selection Mux"}, + + /* Mic 2 Volume */ + {"Mic 2 Volume", NULL, "MIC2N"}, + {"Mic 2 Volume", NULL, "MIC2"}, + + /* Mic Selector Mux */ + {"Mic Selection Mux", "Mic 1", "MIC1"}, + {"Mic Selection Mux", "Mic 2", "MIC2N"}, + {"Mic Selection Mux", "Mic 3", "MIC2"}, + + /* ACOP */ + {"ACOP", NULL, "ALC Mixer"}, +}; + +/* PLL divisors */ +struct _pll_div { + u32 div2:1; + u32 n:4; + u32 k:24; +}; + +/* The size in bits of the pll divide multiplied by 10 + * to allow rounding later */ +#define FIXED_PLL_SIZE ((1 << 22) * 10) + +static void pll_factors(struct _pll_div *pll_div, unsigned int target, + unsigned int source) +{ + u64 Kpart; + unsigned int K, Ndiv, Nmod; + + Ndiv = target / source; + if (Ndiv < 6) { + source >>= 1; + pll_div->div2 = 1; + Ndiv = target / source; + } else + pll_div->div2 = 0; + + if ((Ndiv < 6) || (Ndiv > 12)) + printk(KERN_WARNING + "wm8753: unsupported N = %u\n", Ndiv); + + pll_div->n = Ndiv; + Nmod = target % source; + Kpart = FIXED_PLL_SIZE * (long long)Nmod; + + do_div(Kpart, source); + + K = Kpart & 0xFFFFFFFF; + + /* Check if we need to round */ + if ((K % 10) >= 5) + K += 5; + + /* Move down to proper range now rounding is done */ + K /= 10; + + pll_div->k = K; +} + +static int wm8753_set_dai_pll(struct snd_soc_dai *codec_dai, int pll_id, + int source, unsigned int freq_in, unsigned int freq_out) +{ + u16 reg, enable; + int offset; + struct snd_soc_codec *codec = codec_dai->codec; + + if (pll_id < WM8753_PLL1 || pll_id > WM8753_PLL2) + return -ENODEV; + + if (pll_id == WM8753_PLL1) { + offset = 0; + enable = 0x10; + reg = snd_soc_read(codec, WM8753_CLOCK) & 0xffef; + } else { + offset = 4; + enable = 0x8; + reg = snd_soc_read(codec, WM8753_CLOCK) & 0xfff7; + } + + if (!freq_in || !freq_out) { + /* disable PLL */ + snd_soc_write(codec, WM8753_PLL1CTL1 + offset, 0x0026); + snd_soc_write(codec, WM8753_CLOCK, reg); + return 0; + } else { + u16 value = 0; + struct _pll_div pll_div; + + pll_factors(&pll_div, freq_out * 8, freq_in); + + /* set up N and K PLL divisor ratios */ + /* bits 8:5 = PLL_N, bits 3:0 = PLL_K[21:18] */ + value = (pll_div.n << 5) + ((pll_div.k & 0x3c0000) >> 18); + snd_soc_write(codec, WM8753_PLL1CTL2 + offset, value); + + /* bits 8:0 = PLL_K[17:9] */ + value = (pll_div.k & 0x03fe00) >> 9; + snd_soc_write(codec, WM8753_PLL1CTL3 + offset, value); + + /* bits 8:0 = PLL_K[8:0] */ + value = pll_div.k & 0x0001ff; + snd_soc_write(codec, WM8753_PLL1CTL4 + offset, value); + + /* set PLL as input and enable */ + snd_soc_write(codec, WM8753_PLL1CTL1 + offset, 0x0027 | + (pll_div.div2 << 3)); + snd_soc_write(codec, WM8753_CLOCK, reg | enable); + } + return 0; +} + +struct _coeff_div { + u32 mclk; + u32 rate; + u8 sr:5; + u8 usb:1; +}; + +/* codec hifi mclk (after PLL) clock divider coefficients */ +static const struct _coeff_div coeff_div[] = { + /* 8k */ + {12288000, 8000, 0x6, 0x0}, + {11289600, 8000, 0x16, 0x0}, + {18432000, 8000, 0x7, 0x0}, + {16934400, 8000, 0x17, 0x0}, + {12000000, 8000, 0x6, 0x1}, + + /* 11.025k */ + {11289600, 11025, 0x18, 0x0}, + {16934400, 11025, 0x19, 0x0}, + {12000000, 11025, 0x19, 0x1}, + + /* 16k */ + {12288000, 16000, 0xa, 0x0}, + {18432000, 16000, 0xb, 0x0}, + {12000000, 16000, 0xa, 0x1}, + + /* 22.05k */ + {11289600, 22050, 0x1a, 0x0}, + {16934400, 22050, 0x1b, 0x0}, + {12000000, 22050, 0x1b, 0x1}, + + /* 32k */ + {12288000, 32000, 0xc, 0x0}, + {18432000, 32000, 0xd, 0x0}, + {12000000, 32000, 0xa, 0x1}, + + /* 44.1k */ + {11289600, 44100, 0x10, 0x0}, + {16934400, 44100, 0x11, 0x0}, + {12000000, 44100, 0x11, 0x1}, + + /* 48k */ + {12288000, 48000, 0x0, 0x0}, + {18432000, 48000, 0x1, 0x0}, + {12000000, 48000, 0x0, 0x1}, + + /* 88.2k */ + {11289600, 88200, 0x1e, 0x0}, + {16934400, 88200, 0x1f, 0x0}, + {12000000, 88200, 0x1f, 0x1}, + + /* 96k */ + {12288000, 96000, 0xe, 0x0}, + {18432000, 96000, 0xf, 0x0}, + {12000000, 96000, 0xe, 0x1}, +}; + +static int get_coeff(int mclk, int rate) +{ + int i; + + for (i = 0; i < ARRAY_SIZE(coeff_div); i++) { + if (coeff_div[i].rate == rate && coeff_div[i].mclk == mclk) + return i; + } + return -EINVAL; +} + +/* + * Clock after PLL and dividers + */ +static int wm8753_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 wm8753_priv *wm8753 = snd_soc_codec_get_drvdata(codec); + + switch (freq) { + case 11289600: + case 12000000: + case 12288000: + case 16934400: + case 18432000: + if (clk_id == WM8753_MCLK) { + wm8753->sysclk = freq; + return 0; + } else if (clk_id == WM8753_PCMCLK) { + wm8753->pcmclk = freq; + return 0; + } + break; + } + return -EINVAL; +} + +/* + * Set's ADC and Voice DAC format. + */ +static int wm8753_vdac_adc_set_dai_fmt(struct snd_soc_codec *codec, + unsigned int fmt) +{ + u16 voice = snd_soc_read(codec, WM8753_PCM) & 0x01ec; + + /* interface format */ + switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { + case SND_SOC_DAIFMT_I2S: + voice |= 0x0002; + break; + case SND_SOC_DAIFMT_RIGHT_J: + break; + case SND_SOC_DAIFMT_LEFT_J: + voice |= 0x0001; + break; + case SND_SOC_DAIFMT_DSP_A: + voice |= 0x0003; + break; + case SND_SOC_DAIFMT_DSP_B: + voice |= 0x0013; + break; + default: + return -EINVAL; + } + + snd_soc_write(codec, WM8753_PCM, voice); + return 0; +} + +/* + * Set PCM DAI bit size and sample rate. + */ +static int wm8753_pcm_hw_params(struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *params, + struct snd_soc_dai *dai) +{ + struct snd_soc_codec *codec = dai->codec; + struct wm8753_priv *wm8753 = snd_soc_codec_get_drvdata(codec); + u16 voice = snd_soc_read(codec, WM8753_PCM) & 0x01f3; + u16 srate = snd_soc_read(codec, WM8753_SRATE1) & 0x017f; + + /* bit size */ + switch (params_width(params)) { + case 16: + break; + case 20: + voice |= 0x0004; + break; + case 24: + voice |= 0x0008; + break; + case 32: + voice |= 0x000c; + break; + } + + /* sample rate */ + if (params_rate(params) * 384 == wm8753->pcmclk) + srate |= 0x80; + snd_soc_write(codec, WM8753_SRATE1, srate); + + snd_soc_write(codec, WM8753_PCM, voice); + return 0; +} + +/* + * Set's PCM dai fmt and BCLK. + */ +static int wm8753_pcm_set_dai_fmt(struct snd_soc_codec *codec, + unsigned int fmt) +{ + u16 voice, ioctl; + + voice = snd_soc_read(codec, WM8753_PCM) & 0x011f; + ioctl = snd_soc_read(codec, WM8753_IOCTL) & 0x015d; + + /* set master/slave audio interface */ + switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) { + case SND_SOC_DAIFMT_CBS_CFS: + break; + case SND_SOC_DAIFMT_CBM_CFM: + ioctl |= 0x2; + case SND_SOC_DAIFMT_CBM_CFS: + voice |= 0x0040; + break; + default: + return -EINVAL; + } + + /* clock inversion */ + switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { + case SND_SOC_DAIFMT_DSP_A: + case SND_SOC_DAIFMT_DSP_B: + /* frame inversion not valid for DSP modes */ + switch (fmt & SND_SOC_DAIFMT_INV_MASK) { + case SND_SOC_DAIFMT_NB_NF: + break; + case SND_SOC_DAIFMT_IB_NF: + voice |= 0x0080; + break; + default: + return -EINVAL; + } + break; + case SND_SOC_DAIFMT_I2S: + case SND_SOC_DAIFMT_RIGHT_J: + case SND_SOC_DAIFMT_LEFT_J: + voice &= ~0x0010; + switch (fmt & SND_SOC_DAIFMT_INV_MASK) { + case SND_SOC_DAIFMT_NB_NF: + break; + case SND_SOC_DAIFMT_IB_IF: + voice |= 0x0090; + break; + case SND_SOC_DAIFMT_IB_NF: + voice |= 0x0080; + break; + case SND_SOC_DAIFMT_NB_IF: + voice |= 0x0010; + break; + default: + return -EINVAL; + } + break; + default: + return -EINVAL; + } + + snd_soc_write(codec, WM8753_PCM, voice); + snd_soc_write(codec, WM8753_IOCTL, ioctl); + return 0; +} + +static int wm8753_set_dai_clkdiv(struct snd_soc_dai *codec_dai, + int div_id, int div) +{ + struct snd_soc_codec *codec = codec_dai->codec; + u16 reg; + + switch (div_id) { + case WM8753_PCMDIV: + reg = snd_soc_read(codec, WM8753_CLOCK) & 0x003f; + snd_soc_write(codec, WM8753_CLOCK, reg | div); + break; + case WM8753_BCLKDIV: + reg = snd_soc_read(codec, WM8753_SRATE2) & 0x01c7; + snd_soc_write(codec, WM8753_SRATE2, reg | div); + break; + case WM8753_VXCLKDIV: + reg = snd_soc_read(codec, WM8753_SRATE2) & 0x003f; + snd_soc_write(codec, WM8753_SRATE2, reg | div); + break; + default: + return -EINVAL; + } + return 0; +} + +/* + * Set's HiFi DAC format. + */ +static int wm8753_hdac_set_dai_fmt(struct snd_soc_codec *codec, + unsigned int fmt) +{ + u16 hifi = snd_soc_read(codec, WM8753_HIFI) & 0x01e0; + + /* interface format */ + switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { + case SND_SOC_DAIFMT_I2S: + hifi |= 0x0002; + break; + case SND_SOC_DAIFMT_RIGHT_J: + break; + case SND_SOC_DAIFMT_LEFT_J: + hifi |= 0x0001; + break; + case SND_SOC_DAIFMT_DSP_A: + hifi |= 0x0003; + break; + case SND_SOC_DAIFMT_DSP_B: + hifi |= 0x0013; + break; + default: + return -EINVAL; + } + + snd_soc_write(codec, WM8753_HIFI, hifi); + return 0; +} + +/* + * Set's I2S DAI format. + */ +static int wm8753_i2s_set_dai_fmt(struct snd_soc_codec *codec, + unsigned int fmt) +{ + u16 ioctl, hifi; + + hifi = snd_soc_read(codec, WM8753_HIFI) & 0x011f; + ioctl = snd_soc_read(codec, WM8753_IOCTL) & 0x00ae; + + /* set master/slave audio interface */ + switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) { + case SND_SOC_DAIFMT_CBS_CFS: + break; + case SND_SOC_DAIFMT_CBM_CFM: + ioctl |= 0x1; + case SND_SOC_DAIFMT_CBM_CFS: + hifi |= 0x0040; + break; + default: + return -EINVAL; + } + + /* clock inversion */ + switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { + case SND_SOC_DAIFMT_DSP_A: + case SND_SOC_DAIFMT_DSP_B: + /* frame inversion not valid for DSP modes */ + switch (fmt & SND_SOC_DAIFMT_INV_MASK) { + case SND_SOC_DAIFMT_NB_NF: + break; + case SND_SOC_DAIFMT_IB_NF: + hifi |= 0x0080; + break; + default: + return -EINVAL; + } + break; + case SND_SOC_DAIFMT_I2S: + case SND_SOC_DAIFMT_RIGHT_J: + case SND_SOC_DAIFMT_LEFT_J: + hifi &= ~0x0010; + switch (fmt & SND_SOC_DAIFMT_INV_MASK) { + case SND_SOC_DAIFMT_NB_NF: + break; + case SND_SOC_DAIFMT_IB_IF: + hifi |= 0x0090; + break; + case SND_SOC_DAIFMT_IB_NF: + hifi |= 0x0080; + break; + case SND_SOC_DAIFMT_NB_IF: + hifi |= 0x0010; + break; + default: + return -EINVAL; + } + break; + default: + return -EINVAL; + } + + snd_soc_write(codec, WM8753_HIFI, hifi); + snd_soc_write(codec, WM8753_IOCTL, ioctl); + return 0; +} + +/* + * Set PCM DAI bit size and sample rate. + */ +static int wm8753_i2s_hw_params(struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *params, + struct snd_soc_dai *dai) +{ + struct snd_soc_codec *codec = dai->codec; + struct wm8753_priv *wm8753 = snd_soc_codec_get_drvdata(codec); + u16 srate = snd_soc_read(codec, WM8753_SRATE1) & 0x01c0; + u16 hifi = snd_soc_read(codec, WM8753_HIFI) & 0x01f3; + int coeff; + + /* is digital filter coefficient valid ? */ + coeff = get_coeff(wm8753->sysclk, params_rate(params)); + if (coeff < 0) { + printk(KERN_ERR "wm8753 invalid MCLK or rate\n"); + return coeff; + } + snd_soc_write(codec, WM8753_SRATE1, srate | (coeff_div[coeff].sr << 1) | + coeff_div[coeff].usb); + + /* bit size */ + switch (params_width(params)) { + case 16: + break; + case 20: + hifi |= 0x0004; + break; + case 24: + hifi |= 0x0008; + break; + case 32: + hifi |= 0x000c; + break; + } + + snd_soc_write(codec, WM8753_HIFI, hifi); + return 0; +} + +static int wm8753_mode1v_set_dai_fmt(struct snd_soc_codec *codec, + unsigned int fmt) +{ + u16 clock; + + /* set clk source as pcmclk */ + clock = snd_soc_read(codec, WM8753_CLOCK) & 0xfffb; + snd_soc_write(codec, WM8753_CLOCK, clock); + + return wm8753_vdac_adc_set_dai_fmt(codec, fmt); +} + +static int wm8753_mode1h_set_dai_fmt(struct snd_soc_codec *codec, + unsigned int fmt) +{ + return wm8753_hdac_set_dai_fmt(codec, fmt); +} + +static int wm8753_mode2_set_dai_fmt(struct snd_soc_codec *codec, + unsigned int fmt) +{ + u16 clock; + + /* set clk source as pcmclk */ + clock = snd_soc_read(codec, WM8753_CLOCK) & 0xfffb; + snd_soc_write(codec, WM8753_CLOCK, clock); + + return wm8753_vdac_adc_set_dai_fmt(codec, fmt); +} + +static int wm8753_mode3_4_set_dai_fmt(struct snd_soc_codec *codec, + unsigned int fmt) +{ + u16 clock; + + /* set clk source as mclk */ + clock = snd_soc_read(codec, WM8753_CLOCK) & 0xfffb; + snd_soc_write(codec, WM8753_CLOCK, clock | 0x4); + + if (wm8753_hdac_set_dai_fmt(codec, fmt) < 0) + return -EINVAL; + return wm8753_vdac_adc_set_dai_fmt(codec, fmt); +} + +static int wm8753_hifi_write_dai_fmt(struct snd_soc_codec *codec, + unsigned int fmt) +{ + struct wm8753_priv *wm8753 = snd_soc_codec_get_drvdata(codec); + int ret = 0; + + switch (wm8753->dai_func) { + case 0: + ret = wm8753_mode1h_set_dai_fmt(codec, fmt); + break; + case 1: + ret = wm8753_mode2_set_dai_fmt(codec, fmt); + break; + case 2: + case 3: + ret = wm8753_mode3_4_set_dai_fmt(codec, fmt); + break; + default: + break; + } + if (ret) + return ret; + + return wm8753_i2s_set_dai_fmt(codec, fmt); +} + +static int wm8753_hifi_set_dai_fmt(struct snd_soc_dai *codec_dai, + unsigned int fmt) +{ + struct snd_soc_codec *codec = codec_dai->codec; + struct wm8753_priv *wm8753 = snd_soc_codec_get_drvdata(codec); + + wm8753->hifi_fmt = fmt; + + return wm8753_hifi_write_dai_fmt(codec, fmt); +}; + +static int wm8753_voice_write_dai_fmt(struct snd_soc_codec *codec, + unsigned int fmt) +{ + struct wm8753_priv *wm8753 = snd_soc_codec_get_drvdata(codec); + int ret = 0; + + if (wm8753->dai_func != 0) + return 0; + + ret = wm8753_mode1v_set_dai_fmt(codec, fmt); + if (ret) + return ret; + ret = wm8753_pcm_set_dai_fmt(codec, fmt); + if (ret) + return ret; + + return 0; +}; + +static int wm8753_voice_set_dai_fmt(struct snd_soc_dai *codec_dai, + unsigned int fmt) +{ + struct snd_soc_codec *codec = codec_dai->codec; + struct wm8753_priv *wm8753 = snd_soc_codec_get_drvdata(codec); + + wm8753->voice_fmt = fmt; + + return wm8753_voice_write_dai_fmt(codec, fmt); +}; + +static int wm8753_mute(struct snd_soc_dai *dai, int mute) +{ + struct snd_soc_codec *codec = dai->codec; + u16 mute_reg = snd_soc_read(codec, WM8753_DAC) & 0xfff7; + struct wm8753_priv *wm8753 = snd_soc_codec_get_drvdata(codec); + + /* the digital mute covers the HiFi and Voice DAC's on the WM8753. + * make sure we check if they are not both active when we mute */ + if (mute && wm8753->dai_func == 1) { + if (!snd_soc_codec_is_active(codec)) + snd_soc_write(codec, WM8753_DAC, mute_reg | 0x8); + } else { + if (mute) + snd_soc_write(codec, WM8753_DAC, mute_reg | 0x8); + else + snd_soc_write(codec, WM8753_DAC, mute_reg); + } + + return 0; +} + +static void wm8753_charge_work(struct work_struct *work) +{ + struct wm8753_priv *wm8753 = + container_of(work, struct wm8753_priv, charge_work.work); + + /* Set to 500k */ + regmap_update_bits(wm8753->regmap, WM8753_PWR1, 0x0180, 0x0100); +} + +static int wm8753_set_bias_level(struct snd_soc_codec *codec, + enum snd_soc_bias_level level) +{ + struct wm8753_priv *wm8753 = snd_soc_codec_get_drvdata(codec); + u16 pwr_reg = snd_soc_read(codec, WM8753_PWR1) & 0xfe3e; + + switch (level) { + case SND_SOC_BIAS_ON: + /* set vmid to 50k and unmute dac */ + snd_soc_write(codec, WM8753_PWR1, pwr_reg | 0x00c0); + break; + case SND_SOC_BIAS_PREPARE: + /* Wait until fully charged */ + flush_delayed_work(&wm8753->charge_work); + break; + case SND_SOC_BIAS_STANDBY: + if (codec->dapm.bias_level == SND_SOC_BIAS_OFF) { + /* set vmid to 5k for quick power up */ + snd_soc_write(codec, WM8753_PWR1, pwr_reg | 0x01c1); + schedule_delayed_work(&wm8753->charge_work, + msecs_to_jiffies(caps_charge)); + } else { + /* mute dac and set vmid to 500k, enable VREF */ + snd_soc_write(codec, WM8753_PWR1, pwr_reg | 0x0141); + } + break; + case SND_SOC_BIAS_OFF: + cancel_delayed_work_sync(&wm8753->charge_work); + snd_soc_write(codec, WM8753_PWR1, 0x0001); + break; + } + codec->dapm.bias_level = level; + return 0; +} + +#define WM8753_RATES (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_11025 |\ + SNDRV_PCM_RATE_16000 | SNDRV_PCM_RATE_22050 |\ + SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000 |\ + SNDRV_PCM_RATE_88200 | SNDRV_PCM_RATE_96000) + +#define WM8753_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\ + SNDRV_PCM_FMTBIT_S24_LE) + +/* + * The WM8753 supports up to 4 different and mutually exclusive DAI + * configurations. This gives 2 PCM's available for use, hifi and voice. + * NOTE: The Voice PCM cannot play or capture audio to the CPU as it's DAI + * is connected between the wm8753 and a BT codec or GSM modem. + * + * 1. Voice over PCM DAI - HIFI DAC over HIFI DAI + * 2. Voice over HIFI DAI - HIFI disabled + * 3. Voice disabled - HIFI over HIFI + * 4. Voice disabled - HIFI over HIFI, uses voice DAI LRC for capture + */ +static const struct snd_soc_dai_ops wm8753_dai_ops_hifi_mode = { + .hw_params = wm8753_i2s_hw_params, + .digital_mute = wm8753_mute, + .set_fmt = wm8753_hifi_set_dai_fmt, + .set_clkdiv = wm8753_set_dai_clkdiv, + .set_pll = wm8753_set_dai_pll, + .set_sysclk = wm8753_set_dai_sysclk, +}; + +static const struct snd_soc_dai_ops wm8753_dai_ops_voice_mode = { + .hw_params = wm8753_pcm_hw_params, + .digital_mute = wm8753_mute, + .set_fmt = wm8753_voice_set_dai_fmt, + .set_clkdiv = wm8753_set_dai_clkdiv, + .set_pll = wm8753_set_dai_pll, + .set_sysclk = wm8753_set_dai_sysclk, +}; + +static struct snd_soc_dai_driver wm8753_dai[] = { +/* DAI HiFi mode 1 */ +{ .name = "wm8753-hifi", + .playback = { + .stream_name = "HiFi Playback", + .channels_min = 1, + .channels_max = 2, + .rates = WM8753_RATES, + .formats = WM8753_FORMATS + }, + .capture = { /* dummy for fast DAI switching */ + .stream_name = "Capture", + .channels_min = 1, + .channels_max = 2, + .rates = WM8753_RATES, + .formats = WM8753_FORMATS + }, + .ops = &wm8753_dai_ops_hifi_mode, +}, +/* DAI Voice mode 1 */ +{ .name = "wm8753-voice", + .playback = { + .stream_name = "Voice Playback", + .channels_min = 1, + .channels_max = 1, + .rates = WM8753_RATES, + .formats = WM8753_FORMATS, + }, + .capture = { + .stream_name = "Capture", + .channels_min = 1, + .channels_max = 2, + .rates = WM8753_RATES, + .formats = WM8753_FORMATS, + }, + .ops = &wm8753_dai_ops_voice_mode, +}, +}; + +static int wm8753_resume(struct snd_soc_codec *codec) +{ + struct wm8753_priv *wm8753 = snd_soc_codec_get_drvdata(codec); + + regcache_sync(wm8753->regmap); + + return 0; +} + +static int wm8753_probe(struct snd_soc_codec *codec) +{ + struct wm8753_priv *wm8753 = snd_soc_codec_get_drvdata(codec); + int ret; + + INIT_DELAYED_WORK(&wm8753->charge_work, wm8753_charge_work); + + ret = wm8753_reset(codec); + if (ret < 0) { + dev_err(codec->dev, "Failed to issue reset: %d\n", ret); + return ret; + } + + wm8753->dai_func = 0; + + /* set the update bits */ + snd_soc_update_bits(codec, WM8753_LDAC, 0x0100, 0x0100); + snd_soc_update_bits(codec, WM8753_RDAC, 0x0100, 0x0100); + snd_soc_update_bits(codec, WM8753_LADC, 0x0100, 0x0100); + snd_soc_update_bits(codec, WM8753_RADC, 0x0100, 0x0100); + snd_soc_update_bits(codec, WM8753_LOUT1V, 0x0100, 0x0100); + snd_soc_update_bits(codec, WM8753_ROUT1V, 0x0100, 0x0100); + snd_soc_update_bits(codec, WM8753_LOUT2V, 0x0100, 0x0100); + snd_soc_update_bits(codec, WM8753_ROUT2V, 0x0100, 0x0100); + snd_soc_update_bits(codec, WM8753_LINVOL, 0x0100, 0x0100); + snd_soc_update_bits(codec, WM8753_RINVOL, 0x0100, 0x0100); + + return 0; +} + +static struct snd_soc_codec_driver soc_codec_dev_wm8753 = { + .probe = wm8753_probe, + .resume = wm8753_resume, + .set_bias_level = wm8753_set_bias_level, + .suspend_bias_off = true, + + .controls = wm8753_snd_controls, + .num_controls = ARRAY_SIZE(wm8753_snd_controls), + .dapm_widgets = wm8753_dapm_widgets, + .num_dapm_widgets = ARRAY_SIZE(wm8753_dapm_widgets), + .dapm_routes = wm8753_dapm_routes, + .num_dapm_routes = ARRAY_SIZE(wm8753_dapm_routes), +}; + +static const struct of_device_id wm8753_of_match[] = { + { .compatible = "wlf,wm8753", }, + { } +}; +MODULE_DEVICE_TABLE(of, wm8753_of_match); + +static const struct regmap_config wm8753_regmap = { + .reg_bits = 7, + .val_bits = 9, + + .max_register = WM8753_ADCTL2, + .writeable_reg = wm8753_writeable, + .volatile_reg = wm8753_volatile, + + .cache_type = REGCACHE_RBTREE, + .reg_defaults = wm8753_reg_defaults, + .num_reg_defaults = ARRAY_SIZE(wm8753_reg_defaults), +}; + +#if defined(CONFIG_SPI_MASTER) +static int wm8753_spi_probe(struct spi_device *spi) +{ + struct wm8753_priv *wm8753; + int ret; + + wm8753 = devm_kzalloc(&spi->dev, sizeof(struct wm8753_priv), + GFP_KERNEL); + if (wm8753 == NULL) + return -ENOMEM; + + spi_set_drvdata(spi, wm8753); + + wm8753->regmap = devm_regmap_init_spi(spi, &wm8753_regmap); + if (IS_ERR(wm8753->regmap)) { + ret = PTR_ERR(wm8753->regmap); + dev_err(&spi->dev, "Failed to allocate register map: %d\n", + ret); + return ret; + } + + ret = snd_soc_register_codec(&spi->dev, &soc_codec_dev_wm8753, + wm8753_dai, ARRAY_SIZE(wm8753_dai)); + if (ret != 0) + dev_err(&spi->dev, "Failed to register CODEC: %d\n", ret); + + return ret; +} + +static int wm8753_spi_remove(struct spi_device *spi) +{ + snd_soc_unregister_codec(&spi->dev); + return 0; +} + +static struct spi_driver wm8753_spi_driver = { + .driver = { + .name = "wm8753", + .owner = THIS_MODULE, + .of_match_table = wm8753_of_match, + }, + .probe = wm8753_spi_probe, + .remove = wm8753_spi_remove, +}; +#endif /* CONFIG_SPI_MASTER */ + +#if IS_ENABLED(CONFIG_I2C) +static int wm8753_i2c_probe(struct i2c_client *i2c, + const struct i2c_device_id *id) +{ + struct wm8753_priv *wm8753; + int ret; + + wm8753 = devm_kzalloc(&i2c->dev, sizeof(struct wm8753_priv), + GFP_KERNEL); + if (wm8753 == NULL) + return -ENOMEM; + + i2c_set_clientdata(i2c, wm8753); + + wm8753->regmap = devm_regmap_init_i2c(i2c, &wm8753_regmap); + if (IS_ERR(wm8753->regmap)) { + ret = PTR_ERR(wm8753->regmap); + dev_err(&i2c->dev, "Failed to allocate register map: %d\n", + ret); + return ret; + } + + ret = snd_soc_register_codec(&i2c->dev, &soc_codec_dev_wm8753, + wm8753_dai, ARRAY_SIZE(wm8753_dai)); + if (ret != 0) + dev_err(&i2c->dev, "Failed to register CODEC: %d\n", ret); + + return ret; +} + +static int wm8753_i2c_remove(struct i2c_client *client) +{ + snd_soc_unregister_codec(&client->dev); + return 0; +} + +static const struct i2c_device_id wm8753_i2c_id[] = { + { "wm8753", 0 }, + { } +}; +MODULE_DEVICE_TABLE(i2c, wm8753_i2c_id); + +static struct i2c_driver wm8753_i2c_driver = { + .driver = { + .name = "wm8753", + .owner = THIS_MODULE, + .of_match_table = wm8753_of_match, + }, + .probe = wm8753_i2c_probe, + .remove = wm8753_i2c_remove, + .id_table = wm8753_i2c_id, +}; +#endif + +static int __init wm8753_modinit(void) +{ + int ret = 0; +#if IS_ENABLED(CONFIG_I2C) + ret = i2c_add_driver(&wm8753_i2c_driver); + if (ret != 0) { + printk(KERN_ERR "Failed to register wm8753 I2C driver: %d\n", + ret); + } +#endif +#if defined(CONFIG_SPI_MASTER) + ret = spi_register_driver(&wm8753_spi_driver); + if (ret != 0) { + printk(KERN_ERR "Failed to register wm8753 SPI driver: %d\n", + ret); + } +#endif + return ret; +} +module_init(wm8753_modinit); + +static void __exit wm8753_exit(void) +{ +#if IS_ENABLED(CONFIG_I2C) + i2c_del_driver(&wm8753_i2c_driver); +#endif +#if defined(CONFIG_SPI_MASTER) + spi_unregister_driver(&wm8753_spi_driver); +#endif +} +module_exit(wm8753_exit); + +MODULE_DESCRIPTION("ASoC WM8753 driver"); +MODULE_AUTHOR("Liam Girdwood"); +MODULE_LICENSE("GPL"); |