diff options
Diffstat (limited to 'sound/soc/codecs/wm8753.c')
| -rw-r--r-- | sound/soc/codecs/wm8753.c | 1811 |
1 files changed, 1811 insertions, 0 deletions
diff --git a/sound/soc/codecs/wm8753.c b/sound/soc/codecs/wm8753.c new file mode 100644 index 000000000000..efced934566d --- /dev/null +++ b/sound/soc/codecs/wm8753.c @@ -0,0 +1,1811 @@ +/* + * wm8753.c -- WM8753 ALSA Soc Audio driver + * + * Copyright 2003 Wolfson Microelectronics PLC. + * Author: Liam Girdwood + * liam.girdwood@wolfsonmicro.com or linux@wolfsonmicro.com + * + * 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/version.h> +#include <linux/kernel.h> +#include <linux/init.h> +#include <linux/delay.h> +#include <linux/pm.h> +#include <linux/i2c.h> +#include <linux/platform_device.h> +#include <sound/driver.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 <asm/div64.h> + +#include "wm8753.h" + +#define AUDIO_NAME "wm8753" +#define WM8753_VERSION "0.16" + +/* + * Debug + */ + +#define WM8753_DEBUG 0 + +#ifdef WM8753_DEBUG +#define dbg(format, arg...) \ + printk(KERN_DEBUG AUDIO_NAME ": " format "\n" , ## arg) +#else +#define dbg(format, arg...) do {} while (0) +#endif +#define err(format, arg...) \ + printk(KERN_ERR AUDIO_NAME ": " format "\n" , ## arg) +#define info(format, arg...) \ + printk(KERN_INFO AUDIO_NAME ": " format "\n" , ## arg) +#define warn(format, arg...) \ + printk(KERN_WARNING AUDIO_NAME ": " format "\n" , ## arg) + +static int caps_charge = 2000; +module_param(caps_charge, int, 0); +MODULE_PARM_DESC(caps_charge, "WM8753 cap charge time (msecs)"); + +static void wm8753_set_dai_mode(struct snd_soc_codec *codec, + unsigned int mode); + +/* codec private data */ +struct wm8753_priv { + unsigned int sysclk; + unsigned int pcmclk; +}; + +/* + * 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 u16 wm8753_reg[] = { + 0x0008, 0x0000, 0x000a, 0x000a, + 0x0033, 0x0000, 0x0007, 0x00ff, + 0x00ff, 0x000f, 0x000f, 0x007b, + 0x0000, 0x0032, 0x0000, 0x00c3, + 0x00c3, 0x00c0, 0x0000, 0x0000, + 0x0000, 0x0000, 0x0000, 0x0000, + 0x0000, 0x0000, 0x0000, 0x0000, + 0x0000, 0x0000, 0x0000, 0x0055, + 0x0005, 0x0050, 0x0055, 0x0050, + 0x0055, 0x0050, 0x0055, 0x0079, + 0x0079, 0x0079, 0x0079, 0x0079, + 0x0000, 0x0000, 0x0000, 0x0000, + 0x0097, 0x0097, 0x0000, 0x0004, + 0x0000, 0x0083, 0x0024, 0x01ba, + 0x0000, 0x0083, 0x0024, 0x01ba, + 0x0000, 0x0000 +}; + +/* + * read wm8753 register cache + */ +static inline unsigned int wm8753_read_reg_cache(struct snd_soc_codec *codec, + unsigned int reg) +{ + u16 *cache = codec->reg_cache; + if (reg < 1 || reg > (ARRAY_SIZE(wm8753_reg) + 1)) + return -1; + return cache[reg - 1]; +} + +/* + * write wm8753 register cache + */ +static inline void wm8753_write_reg_cache(struct snd_soc_codec *codec, + unsigned int reg, unsigned int value) +{ + u16 *cache = codec->reg_cache; + if (reg < 1 || reg > 0x3f) + return; + cache[reg - 1] = value; +} + +/* + * write to the WM8753 register space + */ +static int wm8753_write(struct snd_soc_codec *codec, unsigned int reg, + unsigned int value) +{ + u8 data[2]; + + /* data is + * D15..D9 WM8753 register offset + * D8...D0 register data + */ + data[0] = (reg << 1) | ((value >> 8) & 0x0001); + data[1] = value & 0x00ff; + + wm8753_write_reg_cache (codec, reg, value); + if (codec->hw_write(codec->control_data, data, 2) == 2) + return 0; + else + return -EIO; +} + +#define wm8753_reset(c) wm8753_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 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), +}; + + +static int wm8753_get_dai(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); + int mode = wm8753_read_reg_cache(codec, WM8753_IOCTL); + + ucontrol->value.integer.value[0] = (mode & 0xc) >> 2; + return 0; +} + +static int wm8753_set_dai(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); + int mode = wm8753_read_reg_cache(codec, WM8753_IOCTL); + + if (((mode &0xc) >> 2) == ucontrol->value.integer.value[0]) + return 0; + + mode &= 0xfff3; + mode |= (ucontrol->value.integer.value[0] << 2); + + wm8753_write(codec, WM8753_IOCTL, mode); + wm8753_set_dai_mode(codec, ucontrol->value.integer.value[0]); + return 1; +} + +static const struct snd_kcontrol_new wm8753_snd_controls[] = { +SOC_DOUBLE_R("PCM Volume", WM8753_LDAC, WM8753_RDAC, 0, 255, 0), + +SOC_DOUBLE_R("ADC Capture Volume", WM8753_LADC, WM8753_RADC, 0, 255, 0), + +SOC_DOUBLE_R("Headphone Playback Volume", WM8753_LOUT1V, WM8753_ROUT1V, 0, 127, 0), +SOC_DOUBLE_R("Speaker Playback Volume", WM8753_LOUT2V, WM8753_ROUT2V, 0, 127, 0), + +SOC_SINGLE("Mono Playback Volume", WM8753_MOUTV, 0, 127, 0), + +SOC_DOUBLE_R("Bypass Playback Volume", WM8753_LOUTM1, WM8753_ROUTM1, 4, 7, 1), +SOC_DOUBLE_R("Sidetone Playback Volume", WM8753_LOUTM2, WM8753_ROUTM2, 4, 7, 1), +SOC_DOUBLE_R("Voice Playback Volume", WM8753_LOUTM2, WM8753_ROUTM2, 0, 7, 1), + +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("Mono Bypass Playback Volume", WM8753_MOUTM1, 4, 7, 1), +SOC_SINGLE("Mono Sidetone Playback Volume", WM8753_MOUTM2, 4, 7, 1), +SOC_SINGLE("Mono Voice Playback Volume", WM8753_MOUTM2, 4, 7, 1), +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("Sidetone Capture Volume", WM8753_RECMIX1, 0, 4, 7, 1), +SOC_SINGLE("Voice Sidetone Capture Volume", WM8753_RECMIX2, 0, 7, 1), + +SOC_DOUBLE_R("Capture Volume", WM8753_LINVOL, WM8753_RINVOL, 0, 63, 0), +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("Mic2 Capture Volume", WM8753_INCTL1, 7, 3, 0), +SOC_SINGLE("Mic1 Capture Volume", WM8753_INCTL1, 5, 3, 0), + +SOC_ENUM_EXT("DAI Mode", wm8753_enum[26], wm8753_get_dai, wm8753_set_dai), + +SOC_ENUM("ADC Data Select", wm8753_enum[27]), +}; + +/* add non dapm controls */ +static int wm8753_add_controls(struct snd_soc_codec *codec) +{ + int err, i; + + for (i = 0; i < ARRAY_SIZE(wm8753_snd_controls); i++) { + err = snd_ctl_add(codec->card, + snd_soc_cnew(&wm8753_snd_controls[i],codec, NULL)); + if (err < 0) + return err; + } + return 0; +} + +/* + * _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 char *audio_map[][3] = { + /* 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", "Capture ST 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", "Capture ST Mixer"}, + + /* Mono Capture mixer-mux */ + {"Capture Right Mixer", "Stereo", "Capture Right 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"}, + + /* terminator */ + {NULL, NULL, NULL}, +}; + +static int wm8753_add_widgets(struct snd_soc_codec *codec) +{ + int i; + + for (i = 0; i < ARRAY_SIZE(wm8753_dapm_widgets); i++) + snd_soc_dapm_new_control(codec, &wm8753_dapm_widgets[i]); + + /* set up the WM8753 audio map */ + for (i = 0; audio_map[i][0] != NULL; i++) { + snd_soc_dapm_connect_input(codec, audio_map[i][0], + audio_map[i][1], audio_map[i][2]); + } + + snd_soc_dapm_new_widgets(codec); + return 0; +} + +/* 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 N value outwith recommended range! N = %d\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_codec_dai *codec_dai, + int pll_id, 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 = wm8753_read_reg_cache(codec, WM8753_CLOCK) & 0xffef; + } else { + offset = 4; + enable = 0x8; + reg = wm8753_read_reg_cache(codec, WM8753_CLOCK) & 0xfff7; + } + + if (!freq_in || !freq_out) { + /* disable PLL */ + wm8753_write(codec, WM8753_PLL1CTL1 + offset, 0x0026); + wm8753_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); + wm8753_write(codec, WM8753_PLL1CTL2 + offset, value); + + /* bits 8:0 = PLL_K[17:9] */ + value = (pll_div.k & 0x03fe00) >> 9; + wm8753_write(codec, WM8753_PLL1CTL3 + offset, value); + + /* bits 8:0 = PLL_K[8:0] */ + value = pll_div.k & 0x0001ff; + wm8753_write(codec, WM8753_PLL1CTL4 + offset, value); + + /* set PLL as input and enable */ + wm8753_write(codec, WM8753_PLL1CTL1 + offset, 0x0027 | + (pll_div.div2 << 3)); + wm8753_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_codec_dai *codec_dai, + int clk_id, unsigned int freq, int dir) +{ + struct snd_soc_codec *codec = codec_dai->codec; + struct wm8753_priv *wm8753 = codec->private_data; + + 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_dai *codec_dai, + unsigned int fmt) +{ + struct snd_soc_codec *codec = codec_dai->codec; + u16 voice = wm8753_read_reg_cache(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; + } + + wm8753_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_pcm_runtime *rtd = substream->private_data; + struct snd_soc_device *socdev = rtd->socdev; + struct snd_soc_codec *codec = socdev->codec; + struct wm8753_priv *wm8753 = codec->private_data; + u16 voice = wm8753_read_reg_cache(codec, WM8753_PCM) & 0x01f3; + u16 srate = wm8753_read_reg_cache(codec, WM8753_SRATE1) & 0x017f; + + /* bit size */ + switch (params_format(params)) { + case SNDRV_PCM_FORMAT_S16_LE: + break; + case SNDRV_PCM_FORMAT_S20_3LE: + voice |= 0x0004; + break; + case SNDRV_PCM_FORMAT_S24_LE: + voice |= 0x0008; + break; + case SNDRV_PCM_FORMAT_S32_LE: + voice |= 0x000c; + break; + } + + /* sample rate */ + if (params_rate(params) * 384 == wm8753->pcmclk) + srate |= 0x80; + wm8753_write(codec, WM8753_SRATE1, srate); + + wm8753_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_dai *codec_dai, + unsigned int fmt) +{ + struct snd_soc_codec *codec = codec_dai->codec; + u16 voice, ioctl; + + voice = wm8753_read_reg_cache(codec, WM8753_PCM) & 0x011f; + ioctl = wm8753_read_reg_cache(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; + } + + wm8753_write(codec, WM8753_PCM, voice); + wm8753_write(codec, WM8753_IOCTL, ioctl); + return 0; +} + +static int wm8753_set_dai_clkdiv(struct snd_soc_codec_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 = wm8753_read_reg_cache(codec, WM8753_CLOCK) & 0x003f; + wm8753_write(codec, WM8753_CLOCK, reg | div); + break; + case WM8753_BCLKDIV: + reg = wm8753_read_reg_cache(codec, WM8753_SRATE2) & 0x01c7; + wm8753_write(codec, WM8753_SRATE2, reg | div); + break; + case WM8753_VXCLKDIV: + reg = wm8753_read_reg_cache(codec, WM8753_SRATE2) & 0x003f; + wm8753_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_dai *codec_dai, + unsigned int fmt) +{ + struct snd_soc_codec *codec = codec_dai->codec; + u16 hifi = wm8753_read_reg_cache(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; + } + + wm8753_write(codec, WM8753_HIFI, hifi); + return 0; +} + +/* + * Set's I2S DAI format. + */ +static int wm8753_i2s_set_dai_fmt(struct snd_soc_codec_dai *codec_dai, + unsigned int fmt) +{ + struct snd_soc_codec *codec = codec_dai->codec; + u16 ioctl, hifi; + + hifi = wm8753_read_reg_cache(codec, WM8753_HIFI) & 0x011f; + ioctl = wm8753_read_reg_cache(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; + } + + wm8753_write(codec, WM8753_HIFI, hifi); + wm8753_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_pcm_runtime *rtd = substream->private_data; + struct snd_soc_device *socdev = rtd->socdev; + struct snd_soc_codec *codec = socdev->codec; + struct wm8753_priv *wm8753 = codec->private_data; + u16 srate = wm8753_read_reg_cache(codec, WM8753_SRATE1) & 0x01c0; + u16 hifi = wm8753_read_reg_cache(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; + } + wm8753_write(codec, WM8753_SRATE1, srate | (coeff_div[coeff].sr << 1) | + coeff_div[coeff].usb); + + /* bit size */ + switch (params_format(params)) { + case SNDRV_PCM_FORMAT_S16_LE: + break; + case SNDRV_PCM_FORMAT_S20_3LE: + hifi |= 0x0004; + break; + case SNDRV_PCM_FORMAT_S24_LE: + hifi |= 0x0008; + break; + case SNDRV_PCM_FORMAT_S32_LE: + hifi |= 0x000c; + break; + } + + wm8753_write(codec, WM8753_HIFI, hifi); + return 0; +} + +static int wm8753_mode1v_set_dai_fmt(struct snd_soc_codec_dai *codec_dai, + unsigned int fmt) +{ + struct snd_soc_codec *codec = codec_dai->codec; + u16 clock; + + /* set clk source as pcmclk */ + clock = wm8753_read_reg_cache(codec, WM8753_CLOCK) & 0xfffb; + wm8753_write(codec, WM8753_CLOCK, clock); + + if (wm8753_vdac_adc_set_dai_fmt(codec_dai, fmt) < 0) + return -EINVAL; + return wm8753_pcm_set_dai_fmt(codec_dai, fmt); +} + +static int wm8753_mode1h_set_dai_fmt(struct snd_soc_codec_dai *codec_dai, + unsigned int fmt) +{ + if (wm8753_hdac_set_dai_fmt(codec_dai, fmt) < 0) + return -EINVAL; + return wm8753_i2s_set_dai_fmt(codec_dai, fmt); +} + +static int wm8753_mode2_set_dai_fmt(struct snd_soc_codec_dai *codec_dai, + unsigned int fmt) +{ + struct snd_soc_codec *codec = codec_dai->codec; + u16 clock; + + /* set clk source as pcmclk */ + clock = wm8753_read_reg_cache(codec, WM8753_CLOCK) & 0xfffb; + wm8753_write(codec, WM8753_CLOCK, clock); + + if (wm8753_vdac_adc_set_dai_fmt(codec_dai, fmt) < 0) + return -EINVAL; + return wm8753_i2s_set_dai_fmt(codec_dai, fmt); +} + +static int wm8753_mode3_4_set_dai_fmt(struct snd_soc_codec_dai *codec_dai, + unsigned int fmt) +{ + struct snd_soc_codec *codec = codec_dai->codec; + u16 clock; + + /* set clk source as mclk */ + clock = wm8753_read_reg_cache(codec, WM8753_CLOCK) & 0xfffb; + wm8753_write(codec, WM8753_CLOCK, clock | 0x4); + + if (wm8753_hdac_set_dai_fmt(codec_dai, fmt) < 0) + return -EINVAL; + if (wm8753_vdac_adc_set_dai_fmt(codec_dai, fmt) < 0) + return -EINVAL; + return wm8753_i2s_set_dai_fmt(codec_dai, fmt); +} + +static int wm8753_mute(struct snd_soc_codec_dai *dai, int mute) +{ + struct snd_soc_codec *codec = dai->codec; + u16 mute_reg = wm8753_read_reg_cache(codec, WM8753_DAC) & 0xfff7; + + /* 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 && dai->id == 1) { + if (!wm8753_dai[WM8753_DAI_VOICE].playback.active || + !wm8753_dai[WM8753_DAI_HIFI].playback.active) + wm8753_write(codec, WM8753_DAC, mute_reg | 0x8); + } else { + if (mute) + wm8753_write(codec, WM8753_DAC, mute_reg | 0x8); + else + wm8753_write(codec, WM8753_DAC, mute_reg); + } + + return 0; +} + +static int wm8753_dapm_event(struct snd_soc_codec *codec, int event) +{ + u16 pwr_reg = wm8753_read_reg_cache(codec, WM8753_PWR1) & 0xfe3e; + + switch (event) { + case SNDRV_CTL_POWER_D0: /* full On */ + /* set vmid to 50k and unmute dac */ + wm8753_write(codec, WM8753_PWR1, pwr_reg | 0x00c0); + break; + case SNDRV_CTL_POWER_D1: /* partial On */ + case SNDRV_CTL_POWER_D2: /* partial On */ + /* set vmid to 5k for quick power up */ + wm8753_write(codec, WM8753_PWR1, pwr_reg | 0x01c1); + break; + case SNDRV_CTL_POWER_D3hot: /* Off, with power */ + /* mute dac and set vmid to 500k, enable VREF */ + wm8753_write(codec, WM8753_PWR1, pwr_reg | 0x0141); + break; + case SNDRV_CTL_POWER_D3cold: /* Off, without power */ + wm8753_write(codec, WM8753_PWR1, 0x0001); + break; + } + codec->dapm_state = event; + 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 upto 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_codec_dai wm8753_all_dai[] = { +/* DAI HiFi mode 1 */ +{ .name = "WM8753 HiFi", + .id = 1, + .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 = { + .hw_params = wm8753_i2s_hw_params,}, + .dai_ops = { + .digital_mute = wm8753_mute, + .set_fmt = wm8753_mode1h_set_dai_fmt, + .set_clkdiv = wm8753_set_dai_clkdiv, + .set_pll = wm8753_set_dai_pll, + .set_sysclk = wm8753_set_dai_sysclk, + }, +}, +/* DAI Voice mode 1 */ +{ .name = "WM8753 Voice", + .id = 1, + .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 = { + .hw_params = wm8753_pcm_hw_params,}, + .dai_ops = { + .digital_mute = wm8753_mute, + .set_fmt = wm8753_mode1v_set_dai_fmt, + .set_clkdiv = wm8753_set_dai_clkdiv, + .set_pll = wm8753_set_dai_pll, + .set_sysclk = wm8753_set_dai_sysclk, + }, +}, +/* DAI HiFi mode 2 - dummy */ +{ .name = "WM8753 HiFi", + .id = 2, +}, +/* DAI Voice mode 2 */ +{ .name = "WM8753 Voice", + .id = 2, + .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 = { + .hw_params = wm8753_pcm_hw_params,}, + .dai_ops = { + .digital_mute = wm8753_mute, + .set_fmt = wm8753_mode2_set_dai_fmt, + .set_clkdiv = wm8753_set_dai_clkdiv, + .set_pll = wm8753_set_dai_pll, + .set_sysclk = wm8753_set_dai_sysclk, + }, +}, +/* DAI HiFi mode 3 */ +{ .name = "WM8753 HiFi", + .id = 3, + .playback = { + .stream_name = "HiFi Playback", + .channels_min = 1, + .channels_max = 2, + .rates = WM8753_RATES, + .formats = WM8753_FORMATS,}, + .capture = { + .stream_name = "Capture", + .channels_min = 1, + .channels_max = 2, + .rates = WM8753_RATES, + .formats = WM8753_FORMATS,}, + .ops = { + .hw_params = wm8753_i2s_hw_params,}, + .dai_ops = { + .digital_mute = wm8753_mute, + .set_fmt = wm8753_mode3_4_set_dai_fmt, + .set_clkdiv = wm8753_set_dai_clkdiv, + .set_pll = wm8753_set_dai_pll, + .set_sysclk = wm8753_set_dai_sysclk, + }, +}, +/* DAI Voice mode 3 - dummy */ +{ .name = "WM8753 Voice", + .id = 3, +}, +/* DAI HiFi mode 4 */ +{ .name = "WM8753 HiFi", + .id = 4, + .playback = { + .stream_name = "HiFi Playback", + .channels_min = 1, + .channels_max = 2, + .rates = WM8753_RATES, + .formats = WM8753_FORMATS,}, + .capture = { + .stream_name = "Capture", + .channels_min = 1, + .channels_max = 2, + .rates = WM8753_RATES, + .formats = WM8753_FORMATS,}, + .ops = { + .hw_params = wm8753_i2s_hw_params,}, + .dai_ops = { + .digital_mute = wm8753_mute, + .set_fmt = wm8753_mode3_4_set_dai_fmt, + .set_clkdiv = wm8753_set_dai_clkdiv, + .set_pll = wm8753_set_dai_pll, + .set_sysclk = wm8753_set_dai_sysclk, + }, +}, +/* DAI Voice mode 4 - dummy */ +{ .name = "WM8753 Voice", + .id = 4, +}, +}; + +struct snd_soc_codec_dai wm8753_dai[2]; +EXPORT_SYMBOL_GPL(wm8753_dai); + +static void wm8753_set_dai_mode(struct snd_soc_codec *codec, unsigned int mode) +{ + if (mode < 4) { + int playback_active, capture_active, codec_active, pop_wait; + void *private_data; + + playback_active = wm8753_dai[0].playback.active; + capture_active = wm8753_dai[0].capture.active; + codec_active = wm8753_dai[0].active; + private_data = wm8753_dai[0].private_data; + pop_wait = wm8753_dai[0].pop_wait; + wm8753_dai[0] = wm8753_all_dai[mode << 1]; + wm8753_dai[0].playback.active = playback_active; + wm8753_dai[0].capture.active = capture_active; + wm8753_dai[0].active = codec_active; + wm8753_dai[0].private_data = private_data; + wm8753_dai[0].pop_wait = pop_wait; + + playback_active = wm8753_dai[1].playback.active; + capture_active = wm8753_dai[1].capture.active; + codec_active = wm8753_dai[1].active; + private_data = wm8753_dai[1].private_data; + pop_wait = wm8753_dai[1].pop_wait; + wm8753_dai[1] = wm8753_all_dai[(mode << 1) + 1]; + wm8753_dai[1].playback.active = playback_active; + wm8753_dai[1].capture.active = capture_active; + wm8753_dai[1].active = codec_active; + wm8753_dai[1].private_data = private_data; + wm8753_dai[1].pop_wait = pop_wait; + } + wm8753_dai[0].codec = codec; + wm8753_dai[1].codec = codec; +} + +static void wm8753_work(struct work_struct *work) +{ + struct snd_soc_codec *codec = + container_of(work, struct snd_soc_codec, delayed_work.work); + wm8753_dapm_event(codec, codec->dapm_state); +} + +static int wm8753_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; + + /* we only need to suspend if we are a valid card */ + if(!codec->card) + return 0; + + wm8753_dapm_event(codec, SNDRV_CTL_POWER_D3cold); + return 0; +} + +static int wm8753_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]; + u16 *cache = codec->reg_cache; + + /* we only need to resume if we are a valid card */ + if(!codec->card) + return 0; + + /* Sync reg_cache with the hardware */ + for (i = 0; i < ARRAY_SIZE(wm8753_reg); i++) { + if (i + 1 == WM8753_RESET) + continue; + data[0] = ((i + 1) << 1) | ((cache[i] >> 8) & 0x0001); + data[1] = cache[i] & 0x00ff; + codec->hw_write(codec->control_data, data, 2); + } + + wm8753_dapm_event(codec, SNDRV_CTL_POWER_D3hot); + + /* charge wm8753 caps */ + if (codec->suspend_dapm_state == SNDRV_CTL_POWER_D0) { + wm8753_dapm_event(codec, SNDRV_CTL_POWER_D2); + codec->dapm_state = SNDRV_CTL_POWER_D0; + schedule_delayed_work(&codec->delayed_work, + msecs_to_jiffies(caps_charge)); + } + + return 0; +} + +/* + * initialise the WM8753 driver + * register the mixer and dsp interfaces with the kernel + */ +static int wm8753_init(struct snd_soc_device *socdev) +{ + struct snd_soc_codec *codec = socdev->codec; + int reg, ret = 0; + + codec->name = "WM8753"; + codec->owner = THIS_MODULE; + codec->read = wm8753_read_reg_cache; + codec->write = wm8753_write; + codec->dapm_event = wm8753_dapm_event; + codec->dai = wm8753_dai; + codec->num_dai = 2; + codec->reg_cache_size = sizeof(wm8753_reg); + codec->reg_cache = kmemdup(wm8753_reg, sizeof(wm8753_reg), GFP_KERNEL); + + if (codec->reg_cache == NULL) + return -ENOMEM; + + wm8753_set_dai_mode(codec, 0); + + wm8753_reset(codec); + + /* register pcms */ + ret = snd_soc_new_pcms(socdev, SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1); + if (ret < 0) { + printk(KERN_ERR "wm8753: failed to create pcms\n"); + goto pcm_err; + } + + /* charge output caps */ + wm8753_dapm_event(codec, SNDRV_CTL_POWER_D2); + codec->dapm_state = SNDRV_CTL_POWER_D3hot; + schedule_delayed_work(&codec->delayed_work, + msecs_to_jiffies(caps_charge)); + + /* set the update bits */ + reg = wm8753_read_reg_cache(codec, WM8753_LDAC); + wm8753_write(codec, WM8753_LDAC, reg | 0x0100); + reg = wm8753_read_reg_cache(codec, WM8753_RDAC); + wm8753_write(codec, WM8753_RDAC, reg | 0x0100); + reg = wm8753_read_reg_cache(codec, WM8753_LADC); + wm8753_write(codec, WM8753_LADC, reg | 0x0100); + reg = wm8753_read_reg_cache(codec, WM8753_RADC); + wm8753_write(codec, WM8753_RADC, reg | 0x0100); + reg = wm8753_read_reg_cache(codec, WM8753_LOUT1V); + wm8753_write(codec, WM8753_LOUT1V, reg | 0x0100); + reg = wm8753_read_reg_cache(codec, WM8753_ROUT1V); + wm8753_write(codec, WM8753_ROUT1V, reg | 0x0100); + reg = wm8753_read_reg_cache(codec, WM8753_LOUT2V); + wm8753_write(codec, WM8753_LOUT2V, reg | 0x0100); + reg = wm8753_read_reg_cache(codec, WM8753_ROUT2V); + wm8753_write(codec, WM8753_ROUT2V, reg | 0x0100); + reg = wm8753_read_reg_cache(codec, WM8753_LINVOL); + wm8753_write(codec, WM8753_LINVOL, reg | 0x0100); + reg = wm8753_read_reg_cache(codec, WM8753_RINVOL); + wm8753_write(codec, WM8753_RINVOL, reg | 0x0100); + + wm8753_add_controls(codec); + wm8753_add_widgets(codec); + ret = snd_soc_register_card(socdev); + if (ret < 0) { + printk(KERN_ERR "wm8753: 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; +} + +/* If the i2c layer weren't so broken, we could pass this kind of data + around */ +static struct snd_soc_device *wm8753_socdev; + +#if defined (CONFIG_I2C) || defined (CONFIG_I2C_MODULE) + +/* + * WM8753 2 wire address is determined by GPIO5 + * state during powerup. + * low = 0x1a + * high = 0x1b + */ +static unsigned short normal_i2c[] = { 0, I2C_CLIENT_END }; + +/* Magic definition of all other variables and things */ +I2C_CLIENT_INSMOD; + +static struct i2c_driver wm8753_i2c_driver; +static struct i2c_client client_template; + +static int wm8753_codec_probe(struct i2c_adapter *adap, int addr, int kind) +{ + struct snd_soc_device *socdev = wm8753_socdev; + struct wm8753_setup_data *setup = socdev->codec_data; + struct snd_soc_codec *codec = socdev->codec; + struct i2c_client *i2c; + int ret; + + if (addr != setup->i2c_address) + return -ENODEV; + + client_template.adapter = adap; + client_template.addr = addr; + + i2c = kmemdup(&client_template, sizeof(client_template), GFP_KERNEL); + if (i2c == NULL){ + kfree(codec); + return -ENOMEM; + } + i2c_set_clientdata(i2c, codec); + codec->control_data = i2c; + + ret = i2c_attach_client(i2c); + if (ret < 0) { + err("failed to attach codec at addr %x\n", addr); + goto err; + } + + ret = wm8753_init(socdev); + if (ret < 0) { + err("failed to initialise WM8753\n"); + goto err; + } + + return ret; + +err: + kfree(codec); + kfree(i2c); + return ret; +} + +static int wm8753_i2c_detach(struct i2c_client *client) +{ + struct snd_soc_codec *codec = i2c_get_clientdata(client); + i2c_detach_client(client); + kfree(codec->reg_cache); + kfree(client); + return 0; +} + +static int wm8753_i2c_attach(struct i2c_adapter *adap) +{ + return i2c_probe(adap, &addr_data, wm8753_codec_probe); +} + +/* corgi i2c codec control layer */ +static struct i2c_driver wm8753_i2c_driver = { + .driver = { + .name = "WM8753 I2C Codec", + .owner = THIS_MODULE, + }, + .id = I2C_DRIVERID_WM8753, + .attach_adapter = wm8753_i2c_attach, + .detach_client = wm8753_i2c_detach, + .command = NULL, +}; + +static struct i2c_client client_template = { + .name = "WM8753", + .driver = &wm8753_i2c_driver, +}; +#endif + +static int wm8753_probe(struct platform_device *pdev) +{ + struct snd_soc_device *socdev = platform_get_drvdata(pdev); + struct wm8753_setup_data *setup; + struct snd_soc_codec *codec; + struct wm8753_priv *wm8753; + int ret = 0; + + info("WM8753 Audio Codec %s", WM8753_VERSION); + + setup = socdev->codec_data; + codec = kzalloc(sizeof(struct snd_soc_codec), GFP_KERNEL); + if (codec == NULL) + return -ENOMEM; + + wm8753 = kzalloc(sizeof(struct wm8753_priv), GFP_KERNEL); + if (wm8753 == NULL) { + kfree(codec); + return -ENOMEM; + } + + codec->private_data = wm8753; + socdev->codec = codec; + mutex_init(&codec->mutex); + INIT_LIST_HEAD(&codec->dapm_widgets); + INIT_LIST_HEAD(&codec->dapm_paths); + wm8753_socdev = socdev; + INIT_DELAYED_WORK(&codec->delayed_work, wm8753_work); + +#if defined (CONFIG_I2C) || defined (CONFIG_I2C_MODULE) + if (setup->i2c_address) { + normal_i2c[0] = setup->i2c_address; + codec->hw_write = (hw_write_t)i2c_master_send; + ret = i2c_add_driver(&wm8753_i2c_driver); + if (ret != 0) + printk(KERN_ERR "can't add i2c driver"); + } +#else + /* Add other interfaces here */ +#endif + return ret; +} + +/* + * This function forces any delayed work to be queued and run. + */ +static int run_delayed_work(struct delayed_work *dwork) +{ + int ret; + + /* cancel any work waiting to be queued. */ + ret = cancel_delayed_work(dwork); + + /* if there was any work waiting then we run it now and + * wait for it's completion */ + if (ret) { + schedule_delayed_work(dwork, 0); + flush_scheduled_work(); + } + return ret; +} + +/* power down chip */ +static int wm8753_remove(struct platform_device *pdev) +{ + struct snd_soc_device *socdev = platform_get_drvdata(pdev); + struct snd_soc_codec *codec = socdev->codec; + + if (codec->control_data) + wm8753_dapm_event(codec, SNDRV_CTL_POWER_D3cold); + run_delayed_work(&codec->delayed_work); + snd_soc_free_pcms(socdev); + snd_soc_dapm_free(socdev); +#if defined (CONFIG_I2C) || defined (CONFIG_I2C_MODULE) + i2c_del_driver(&wm8753_i2c_driver); +#endif + kfree(codec->private_data); + kfree(codec); + + return 0; +} + +struct snd_soc_codec_device soc_codec_dev_wm8753 = { + .probe = wm8753_probe, + .remove = wm8753_remove, + .suspend = wm8753_suspend, + .resume = wm8753_resume, +}; + +EXPORT_SYMBOL_GPL(soc_codec_dev_wm8753); + +MODULE_DESCRIPTION("ASoC WM8753 driver"); +MODULE_AUTHOR("Liam Girdwood"); +MODULE_LICENSE("GPL"); |