A driver for the AK4641 codec used in iPAQ hx4700 and Glofiish M800 among others.

Signed-off-by: Harald Welte laforge@gnumonks.org Signed-off-by: Philipp Zabel philipp.zabel@gmail.com Signed-off-by: Dmitry Artamonow mad_soft@inbox.ru --- include/sound/ak4641.h | 26 ++ sound/soc/codecs/Kconfig | 4 + sound/soc/codecs/Makefile | 2 + sound/soc/codecs/ak4641.c | 628 +++++++++++++++++++++++++++++++++++++++++++++ sound/soc/codecs/ak4641.h | 47 ++++ 5 files changed, 707 insertions(+), 0 deletions(-) create mode 100644 include/sound/ak4641.h create mode 100644 sound/soc/codecs/ak4641.c create mode 100644 sound/soc/codecs/ak4641.h

diff --git a/include/sound/ak4641.h b/include/sound/ak4641.h new file mode 100644 index 0000000..96d1991 --- /dev/null +++ b/include/sound/ak4641.h @@ -0,0 +1,26 @@ +/* + * AK4641 ALSA SoC Codec driver + * + * Copyright 2009 Philipp Zabel + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#ifndef __AK4641_H +#define __AK4641_H + +/** + * struct ak4641_platform_data - platform specific AK4641 configuration + * @gpio_power: GPIO to control external power to AK4641 + * @gpio_npdn: GPIO connected to AK4641 nPDN pin + * + * Both GPIO parameters are optional. + */ +struct ak4641_platform_data { + int gpio_power; + int gpio_npdn; +}; + +#endif /* __AK4641_H */ diff --git a/sound/soc/codecs/Kconfig b/sound/soc/codecs/Kconfig index 6ebd3a6..7c266eb 100644 --- a/sound/soc/codecs/Kconfig +++ b/sound/soc/codecs/Kconfig @@ -20,6 +20,7 @@ config SND_SOC_ALL_CODECS select SND_SOC_AD73311 if I2C select SND_SOC_AK4104 if SPI_MASTER select SND_SOC_AK4535 if I2C + select SND_SOC_AK4641 if I2C select SND_SOC_AK4642 if I2C select SND_SOC_AK4671 if I2C select SND_SOC_ALC5623 if I2C @@ -126,6 +127,9 @@ config SND_SOC_AK4104 config SND_SOC_AK4535 tristate

+config SND_SOC_AK4641 + tristate + config SND_SOC_AK4642 tristate

diff --git a/sound/soc/codecs/Makefile b/sound/soc/codecs/Makefile index 42f185d..e13bd20 100644 --- a/sound/soc/codecs/Makefile +++ b/sound/soc/codecs/Makefile @@ -7,6 +7,7 @@ snd-soc-ad73311-objs := ad73311.o snd-soc-ads117x-objs := ads117x.o snd-soc-ak4104-objs := ak4104.o snd-soc-ak4535-objs := ak4535.o +snd-soc-ak4641-objs := ak4641.o snd-soc-ak4642-objs := ak4642.o snd-soc-ak4671-objs := ak4671.o snd-soc-cq93vc-objs := cq93vc.o @@ -83,6 +84,7 @@ obj-$(CONFIG_SND_SOC_AD73311) += snd-soc-ad73311.o obj-$(CONFIG_SND_SOC_ADS117X) += snd-soc-ads117x.o obj-$(CONFIG_SND_SOC_AK4104) += snd-soc-ak4104.o obj-$(CONFIG_SND_SOC_AK4535) += snd-soc-ak4535.o +obj-$(CONFIG_SND_SOC_AK4641) += snd-soc-ak4641.o obj-$(CONFIG_SND_SOC_AK4642) += snd-soc-ak4642.o obj-$(CONFIG_SND_SOC_AK4671) += snd-soc-ak4671.o obj-$(CONFIG_SND_SOC_CQ0093VC) += snd-soc-cq93vc.o diff --git a/sound/soc/codecs/ak4641.c b/sound/soc/codecs/ak4641.c new file mode 100644 index 0000000..d45e144 --- /dev/null +++ b/sound/soc/codecs/ak4641.c @@ -0,0 +1,628 @@ +/* + * ak4641.c -- AK4641 ALSA Soc Audio driver + * + * Copyright (C) 2008 Harald Welte laforge@gnufiish.org + * + * Based on ak4535.c by Richard Purdie + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#include <linux/module.h> +#include <linux/init.h> +#include <linux/delay.h> +#include <linux/gpio.h> +#include <linux/pm.h> +#include <linux/i2c.h> +#include <linux/platform_device.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/ak4641.h> + +#include "ak4641.h" + +/* codec private data */ +struct ak4641_priv { + struct snd_soc_codec *codec; + u8 reg_cache[AK4641_CACHEREGNUM]; + unsigned int sysclk; +}; + +/* + * ak4641 register cache + */ +static const u8 ak4641_reg[AK4641_CACHEREGNUM] = { + 0x00, 0x80, 0x00, 0x80, + 0x02, 0x00, 0x11, 0x05, + 0x00, 0x00, 0x36, 0x10, + 0x00, 0x00, 0x57, 0x00, + 0x88, 0x88, 0x08, 0x08 +}; + + +static int ak4641_sync(struct snd_soc_codec *codec) +{ + u8 *cache = codec->reg_cache; + int i, r = 0; + + for (i = 0; i < AK4641_CACHEREGNUM; i++) + r |= snd_soc_write(codec, i, cache[i]); + + return r; +}; + + +static const char *ak4641_mono_gain[] = {"+6dB", "-17dB"}; +static const char *ak4641_mono_out[] = {"(L + R)/2", "Hi-Z"}; +static const char *ak4641_hp_out[] = {"Stereo", "Mono"}; +static const char *ak4641_deemp[] = {"44.1kHz", "Off", "48kHz", "32kHz"}; +static const char *ak4641_mic_select[] = {"Internal", "External"}; +static const char *ak4641_mic_or_dac[] = {"Microphone", "Voice DAC"}; + +static const struct soc_enum ak4641_enum[] = { + SOC_ENUM_SINGLE(AK4641_SIG1, 7, 2, ak4641_mono_gain), + SOC_ENUM_SINGLE(AK4641_SIG1, 6, 2, ak4641_mono_out), + SOC_ENUM_SINGLE(AK4641_MODE2, 2, 2, ak4641_hp_out), + SOC_ENUM_SINGLE(AK4641_DAC, 0, 4, ak4641_deemp), + SOC_ENUM_SINGLE(AK4641_MIC, 1, 2, ak4641_mic_select), + SOC_ENUM_SINGLE(AK4641_BTIF, 4, 2, ak4641_mic_or_dac), +}; + +static const struct snd_kcontrol_new ak4641_snd_controls[] = { + SOC_ENUM("Mono 1 Output", ak4641_enum[1]), + SOC_ENUM("Mono 1 Gain", ak4641_enum[0]), + SOC_ENUM("Headphone Output", ak4641_enum[2]), + SOC_ENUM("Playback Deemphasis", ak4641_enum[3]), + + SOC_SINGLE("Mic Boost (+20dB) Switch", AK4641_MIC, 0, 1, 0), + + SOC_SINGLE("ALC Operation Time", AK4641_TIMER, 0, 3, 0), + SOC_SINGLE("ALC Recovery Time", AK4641_TIMER, 2, 3, 0), + SOC_SINGLE("ALC ZC Time", AK4641_TIMER, 4, 3, 0), + + SOC_SINGLE("ALC 1 Switch", AK4641_ALC1, 5, 1, 0), + + SOC_SINGLE("ALC Volume", AK4641_ALC2, 0, 127, 0), + + SOC_SINGLE("Capture Volume", AK4641_PGA, 0, 127, 0), + + SOC_DOUBLE_R("Master Playback Volume", AK4641_LATT, + AK4641_RATT, 0, 255, 1), + + SOC_SINGLE("AUX In Volume", AK4641_VOL, 0, 15, 0), + SOC_SINGLE("Mic In Volume", AK4641_VOL, 4, 7, 0), + SOC_SINGLE("Mic In -4dB", AK4641_VOL, 7, 1, 0), + + SOC_SINGLE("Equalizer", AK4641_DAC, 2, 1, 0), + SOC_SINGLE("EQ1 100 Hz", AK4641_EQLO, 0, 15, 1), + SOC_SINGLE("EQ2 250 Hz", AK4641_EQLO, 4, 15, 1), + SOC_SINGLE("EQ3 1 kHz", AK4641_EQMID, 0, 15, 1), + SOC_SINGLE("EQ4 3.5 kHz", AK4641_EQMID, 4, 15, 1), + SOC_SINGLE("EQ5 10 kHz", AK4641_EQHI, 0, 15, 1), +}; + +/* Mono 1 Mixer */ +static const struct snd_kcontrol_new ak4641_mono1_mixer_controls[] = { + SOC_DAPM_SINGLE("Mic Mono Sidetone Switch", AK4641_SIG1, 4, 1, 0), + SOC_DAPM_SINGLE("Mono Playback Switch", AK4641_SIG1, 5, 1, 0), +}; + +/* Stereo Mixer */ +static const struct snd_kcontrol_new ak4641_stereo_mixer_controls[] = { + SOC_DAPM_SINGLE("Mic Sidetone Switch", AK4641_SIG2, 4, 1, 0), + SOC_DAPM_SINGLE("Playback Switch", AK4641_SIG2, 7, 1, 0), + SOC_DAPM_SINGLE("Aux Bypass Switch", AK4641_SIG2, 5, 1, 0), +}; + +/* Input Mixer */ +static const struct snd_kcontrol_new ak4641_input_mixer_controls[] = { + SOC_DAPM_SINGLE("Mic Capture Switch", AK4641_MIC, 2, 1, 0), + SOC_DAPM_SINGLE("Aux Capture Switch", AK4641_MIC, 5, 1, 0), +}; + +/* Mic mux */ +static const struct snd_kcontrol_new ak4641_mic_mux_control = + SOC_DAPM_ENUM("Mic Select", ak4641_enum[4]); + +/* Input mux */ +static const struct snd_kcontrol_new ak4641_input_mux_control = + SOC_DAPM_ENUM("Input Select", ak4641_enum[5]); + +/* HP L switch */ +static const struct snd_kcontrol_new ak4641_hpl_control = + SOC_DAPM_SINGLE("Switch", AK4641_SIG2, 1, 1, 0); + +/* HP R switch */ +static const struct snd_kcontrol_new ak4641_hpr_control = + SOC_DAPM_SINGLE("Switch", AK4641_SIG2, 0, 1, 0); + +/* mono 2 switch */ +static const struct snd_kcontrol_new ak4641_mono2_control = + SOC_DAPM_SINGLE("Switch", AK4641_SIG1, 0, 1, 0); + +/* ak4641 dapm widgets */ +static const struct snd_soc_dapm_widget ak4641_dapm_widgets[] = { + SND_SOC_DAPM_MIXER("Stereo Mixer", SND_SOC_NOPM, 0, 0, + &ak4641_stereo_mixer_controls[0], + ARRAY_SIZE(ak4641_stereo_mixer_controls)), + SND_SOC_DAPM_MIXER("Mono1 Mixer", SND_SOC_NOPM, 0, 0, + &ak4641_mono1_mixer_controls[0], + ARRAY_SIZE(ak4641_mono1_mixer_controls)), + SND_SOC_DAPM_MIXER("Input Mixer", SND_SOC_NOPM, 0, 0, + &ak4641_input_mixer_controls[0], + ARRAY_SIZE(ak4641_input_mixer_controls)), + SND_SOC_DAPM_MUX("Mic Mux", SND_SOC_NOPM, 0, 0, + &ak4641_mic_mux_control), + SND_SOC_DAPM_MUX("Input Mux", SND_SOC_NOPM, 0, 0, + &ak4641_input_mux_control), + SND_SOC_DAPM_SWITCH("Mono 2 Enable", SND_SOC_NOPM, 0, 0, + &ak4641_mono2_control), + /* speaker powersave bit */ + SND_SOC_DAPM_SWITCH("Left Out Enable", SND_SOC_NOPM, 0, 0, + &ak4641_hpl_control), + SND_SOC_DAPM_SWITCH("Right Out Enable", SND_SOC_NOPM, 0, 0, + &ak4641_hpr_control), + + SND_SOC_DAPM_OUTPUT("LOUT"), + SND_SOC_DAPM_OUTPUT("ROUT"), + SND_SOC_DAPM_OUTPUT("MOUT1"), + SND_SOC_DAPM_OUTPUT("MOUT2"), + SND_SOC_DAPM_OUTPUT("MICOUT"), + + SND_SOC_DAPM_ADC("ADC", "HiFi Capture", AK4641_PM1, 0, 0), + SND_SOC_DAPM_PGA("Mic", AK4641_PM1, 1, 0, NULL, 0), + SND_SOC_DAPM_PGA("AUX In", AK4641_PM1, 2, 0, NULL, 0), + SND_SOC_DAPM_PGA("Mono Out", AK4641_PM1, 3, 0, NULL, 0), + SND_SOC_DAPM_PGA("Line Out", AK4641_PM1, 4, 0, NULL, 0), + + SND_SOC_DAPM_DAC("DAC", "HiFi Playback", AK4641_PM2, 0, 0), + SND_SOC_DAPM_PGA("Mono Out 2", AK4641_PM2, 3, 0, NULL, 0), + + SND_SOC_DAPM_ADC("Voice ADC", "Voice Capture", AK4641_BTIF, 0, 0), + SND_SOC_DAPM_ADC("Voice DAC", "Voice Playback", AK4641_BTIF, 1, 0), + + SND_SOC_DAPM_MICBIAS("Mic Int Bias", AK4641_MIC, 3, 0), + SND_SOC_DAPM_MICBIAS("Mic Ext Bias", AK4641_MIC, 4, 0), + + SND_SOC_DAPM_INPUT("MICIN"), + SND_SOC_DAPM_INPUT("MICEXT"), + SND_SOC_DAPM_INPUT("AUX"), + SND_SOC_DAPM_INPUT("AIN"), +}; + +static const struct snd_soc_dapm_route audio_map[] = { + /* Stereo Mixer */ + {"Stereo Mixer", "Playback Switch", "DAC"}, + {"Stereo Mixer", "Mic Sidetone Switch", "Input Mux"}, + {"Stereo Mixer", "Aux Bypass Switch", "AUX In"}, + + /* Mono 1 Mixer */ + {"Mono1 Mixer", "Mic Mono Sidetone Switch", "Input Mux"}, + {"Mono1 Mixer", "Mono Playback Switch", "DAC"}, + + /* Mic */ + {"Mic", NULL, "AIN"}, + {"Mic Mux", "Internal", "Mic Int Bias"}, + {"Mic Mux", "External", "Mic Ext Bias"}, + {"Mic Int Bias", NULL, "MICIN"}, + {"Mic Ext Bias", NULL, "MICEXT"}, + {"MICOUT", NULL, "Mic Mux"}, + + /* Input Mux */ + {"Input Mux", "Microphone", "Mic"}, + {"Input Mux", "Voice DAC", "Voice DAC"}, + + /* Line Out */ + {"LOUT", NULL, "Left Out Enable"}, + {"ROUT", NULL, "Right Out Enable"}, + {"Left Out Enable", "Switch", "Line Out"}, + {"Right Out Enable", "Switch", "Line Out"}, + {"Line Out", NULL, "Stereo Mixer"}, + + /* Mono 1 Out */ + {"MOUT1", NULL, "Mono Out"}, + {"Mono Out", NULL, "Mono1 Mixer"}, + + /* Mono 2 Out */ + {"MOUT2", NULL, "Mono 2 Enable"}, + {"Mono 2 Enable", "Switch", "Mono Out 2"}, + {"Mono Out 2", NULL, "Stereo Mixer"}, + + {"Voice ADC", NULL, "Mono 2 Enable"}, + + /* Aux In */ + {"AUX In", NULL, "AUX"}, + + /* ADC */ + {"ADC", NULL, "Input Mixer"}, + {"Input Mixer", "Mic Capture Switch", "Mic"}, + {"Input Mixer", "Aux Capture Switch", "AUX In"}, +}; + +static int ak4641_add_widgets(struct snd_soc_codec *codec) +{ + struct snd_soc_dapm_context *dapm = &codec->dapm; + snd_soc_dapm_new_controls(dapm, ak4641_dapm_widgets, + ARRAY_SIZE(ak4641_dapm_widgets)); + + snd_soc_dapm_add_routes(dapm, audio_map, ARRAY_SIZE(audio_map)); + + snd_soc_dapm_new_widgets(dapm); + return 0; +} + +static int ak4641_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 ak4641_priv *ak4641 = snd_soc_codec_get_drvdata(codec); + + ak4641->sysclk = freq; + return 0; +} + +static int ak4641_pcm_hw_params(struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *params, + struct snd_soc_dai *dai) +{ + /* FIXME */ + + return 0; +} + +static int ak4641_i2s_hw_params(struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *params, + struct snd_soc_dai *dai) +{ + struct snd_soc_pcm_runtime *rtd = substream->private_data; + struct snd_soc_codec *codec = rtd->codec; + struct ak4641_priv *ak4641 = snd_soc_codec_get_drvdata(codec); + u8 mode2 = snd_soc_read(codec, AK4641_MODE2) & ~(0x3 << 5); + int rate = params_rate(params), fs = 256; + + if (rate) + fs = ak4641->sysclk / rate; + + /* set fs */ + switch (fs) { + case 1024: + mode2 |= (0x2 << 5); + break; + case 512: + mode2 |= (0x1 << 5); + break; + case 256: + break; + } + + /* set rate */ + snd_soc_write(codec, AK4641_MODE2, mode2); + return 0; +} + +static int ak4641_pcm_set_dai_fmt(struct snd_soc_dai *codec_dai, + unsigned int fmt) +{ + struct snd_soc_codec *codec = codec_dai->codec; + u8 btif = snd_soc_read(codec, AK4641_BTIF) & ~(0x3 << 5); + + /* interface format */ + switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { + case SND_SOC_DAIFMT_I2S: + btif |= (0x3 << 5); + break; + case SND_SOC_DAIFMT_LEFT_J: + btif |= (0x2 << 5); + break; + case SND_SOC_DAIFMT_DSP_A: /* MSB after FRM */ + btif |= (0x0 << 5); + break; + case SND_SOC_DAIFMT_DSP_B: /* MSB during FRM */ + btif |= (0x1 << 5); + break; + default: + return -EINVAL; + } + + snd_soc_write(codec, AK4641_BTIF, btif); + return 0; +} + +static int ak4641_i2s_set_dai_fmt(struct snd_soc_dai *codec_dai, + unsigned int fmt) +{ + struct snd_soc_codec *codec = codec_dai->codec; + u8 mode1 = 0; + + /* interface format */ + switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { + case SND_SOC_DAIFMT_I2S: + mode1 = 0x0002; + break; + case SND_SOC_DAIFMT_LEFT_J: + mode1 = 0x0001; + break; + default: + return -EINVAL; + } + + snd_soc_write(codec, AK4641_MODE1, mode1); + return 0; +} + +static int ak4641_mute(struct snd_soc_dai *dai, int mute) +{ + struct snd_soc_codec *codec = dai->codec; + u16 mute_reg = snd_soc_read(codec, AK4641_DAC) & 0xffdf; + if (!mute) + snd_soc_write(codec, AK4641_DAC, mute_reg); + else + snd_soc_write(codec, AK4641_DAC, mute_reg | 0x20); + return 0; +} + +static int ak4641_set_bias_level(struct snd_soc_codec *codec, + enum snd_soc_bias_level level) +{ + u16 i, mute_reg; + + switch (level) { + case SND_SOC_BIAS_ON: + mute_reg = snd_soc_read(codec, AK4641_DAC) & 0xffdf; + snd_soc_write(codec, AK4641_DAC, mute_reg); + break; + case SND_SOC_BIAS_PREPARE: + mute_reg = snd_soc_read(codec, AK4641_DAC) & 0xffdf; + snd_soc_write(codec, AK4641_DAC, mute_reg | 0x20); + break; + case SND_SOC_BIAS_STANDBY: + i = snd_soc_read(codec, AK4641_PM1); + snd_soc_write(codec, AK4641_PM1, i | 0x80); + i = snd_soc_read(codec, AK4641_PM2); + snd_soc_write(codec, AK4641_PM2, i & (~0x80)); + break; + case SND_SOC_BIAS_OFF: + i = snd_soc_read(codec, AK4641_PM1); + snd_soc_write(codec, AK4641_PM1, i & (~0x80)); + break; + } + codec->dapm.bias_level = level; + return 0; +} + +#define AK4641_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) +#define AK4641_RATES_BT (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_11025 |\ + SNDRV_PCM_RATE_16000) +#define AK4641_FORMATS (SNDRV_PCM_FMTBIT_S16_LE) + +static struct snd_soc_dai_ops ak4641_i2s_dai_ops = { + .hw_params = ak4641_i2s_hw_params, + .set_fmt = ak4641_i2s_set_dai_fmt, + .digital_mute = ak4641_mute, + .set_sysclk = ak4641_set_dai_sysclk, +}; + +static struct snd_soc_dai_ops ak4641_pcm_dai_ops = { + .hw_params = ak4641_pcm_hw_params, + .set_fmt = ak4641_pcm_set_dai_fmt, + .digital_mute = ak4641_mute, + .set_sysclk = ak4641_set_dai_sysclk, +}; + +struct snd_soc_dai_driver ak4641_dai[] = { +{ + .name = "ak4641-hifi", + .id = 1, + .playback = { + .stream_name = "HiFi Playback", + .channels_min = 1, + .channels_max = 2, + .rates = AK4641_RATES, + .formats = AK4641_FORMATS, + }, + .capture = { + .stream_name = "HiFi Capture", + .channels_min = 1, + .channels_max = 2, + .rates = AK4641_RATES, + .formats = AK4641_FORMATS, + }, + .ops = &ak4641_i2s_dai_ops, +}, +{ + .name = "ak4641-voice", + .id = 1, + .playback = { + .stream_name = "Voice Playback", + .channels_min = 1, + .channels_max = 1, + .rates = AK4641_RATES_BT, + .formats = AK4641_FORMATS, + }, + .capture = { + .stream_name = "Voice Capture", + .channels_min = 1, + .channels_max = 1, + .rates = AK4641_RATES_BT, + .formats = AK4641_FORMATS, + }, + .ops = &ak4641_pcm_dai_ops, +}, +}; + +static int ak4641_suspend(struct snd_soc_codec *codec, pm_message_t state) +{ + ak4641_set_bias_level(codec, SND_SOC_BIAS_OFF); + return 0; +} + +static int ak4641_resume(struct snd_soc_codec *codec) +{ + ak4641_sync(codec); + ak4641_set_bias_level(codec, SND_SOC_BIAS_STANDBY); + return 0; +} + + +static int ak4641_probe(struct snd_soc_codec *codec) +{ + struct ak4641_platform_data *pdata = codec->dev->platform_data; + int ret; + + + if (pdata) { + if (gpio_is_valid(pdata->gpio_power)) { + ret = gpio_request(pdata->gpio_power, "ak4641 power"); + if (ret) + goto err_out; + } + if (gpio_is_valid(pdata->gpio_npdn)) { + ret = gpio_request(pdata->gpio_npdn, "ak4641 npdn"); + if (ret) + goto err_gpio; + } + + if (gpio_is_valid(pdata->gpio_power)) + gpio_direction_output(pdata->gpio_power, 1); + if (gpio_is_valid(pdata->gpio_npdn)) { + gpio_direction_output(pdata->gpio_npdn, 0); + udelay(1); /* > 150 ns */ + gpio_set_value(pdata->gpio_npdn, 1); + } + } + + ret = snd_soc_codec_set_cache_io(codec, 8, 8, SND_SOC_I2C); + if (ret != 0) { + dev_err(codec->dev, "Failed to set cache I/O: %d\n", ret); + goto err_register; + } + + /* power on device */ + ak4641_set_bias_level(codec, SND_SOC_BIAS_STANDBY); + snd_soc_add_controls(codec, ak4641_snd_controls, + ARRAY_SIZE(ak4641_snd_controls)); + ak4641_add_widgets(codec); + + return 0; + +err_register: + if (pdata) { + if (gpio_is_valid(pdata->gpio_power)) + gpio_set_value(pdata->gpio_power, 0); + if (gpio_is_valid(pdata->gpio_npdn)) + gpio_free(pdata->gpio_npdn); + } +err_gpio: + if (pdata && gpio_is_valid(pdata->gpio_power)) + gpio_free(pdata->gpio_power); +err_out: + return ret; +} + +static int ak4641_remove(struct snd_soc_codec *codec) +{ + struct ak4641_platform_data *pdata = codec->dev->platform_data; + + ak4641_set_bias_level(codec, SND_SOC_BIAS_OFF); + + if (pdata) { + if (gpio_is_valid(pdata->gpio_power)) { + gpio_set_value(pdata->gpio_power, 0); + gpio_free(pdata->gpio_power); + } + if (gpio_is_valid(pdata->gpio_npdn)) + gpio_free(pdata->gpio_npdn); + } + return 0; +} + + +static struct snd_soc_codec_driver soc_codec_dev_ak4641 = { + .probe = ak4641_probe, + .remove = ak4641_remove, + .suspend = ak4641_suspend, + .resume = ak4641_resume, + .set_bias_level = ak4641_set_bias_level, + .reg_cache_size = ARRAY_SIZE(ak4641_reg), + .reg_word_size = sizeof(u8), + .reg_cache_default = ak4641_reg, + .reg_cache_step = 1, +}; + + +#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) +static int __devinit ak4641_i2c_probe(struct i2c_client *i2c, + const struct i2c_device_id *id) +{ + struct ak4641_priv *ak4641; + int ret; + + ak4641 = kzalloc(sizeof(struct ak4641_priv), GFP_KERNEL); + if (!ak4641) + return -ENOMEM; + + i2c_set_clientdata(i2c, ak4641); + + ret = snd_soc_register_codec(&i2c->dev, &soc_codec_dev_ak4641, + ak4641_dai, ARRAY_SIZE(ak4641_dai)); + if (ret < 0) + kfree(ak4641); + + return ret; +} + +static int __devexit ak4641_i2c_remove(struct i2c_client *i2c) +{ + snd_soc_unregister_codec(&i2c->dev); + kfree(i2c_get_clientdata(i2c)); + return 0; +} + +static const struct i2c_device_id ak4641_i2c_id[] = { + { "ak4641", 0 }, + { } +}; +MODULE_DEVICE_TABLE(i2c, ak4641_i2c_id); + +static struct i2c_driver ak4641_i2c_driver = { + .driver = { + .name = "ak4641-codec", + .owner = THIS_MODULE, + }, + .probe = ak4641_i2c_probe, + .remove = __devexit_p(ak4641_i2c_remove), + .id_table = ak4641_i2c_id, +}; +#endif + +static int __init ak4641_modinit(void) +{ + int ret; +#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) + ret = i2c_add_driver(&ak4641_i2c_driver); + if (ret != 0) + pr_err("Failed to register AK4641 I2C driver: %d\n", ret); +#endif + return ret; +} +module_init(ak4641_modinit); + +static void __exit ak4641_exit(void) +{ +#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) + i2c_del_driver(&ak4641_i2c_driver); +#endif +} +module_exit(ak4641_exit); + +MODULE_DESCRIPTION("SoC AK4641 driver"); +MODULE_AUTHOR("Harald Welte laforge@gnufiish.org"); +MODULE_LICENSE("GPL"); diff --git a/sound/soc/codecs/ak4641.h b/sound/soc/codecs/ak4641.h new file mode 100644 index 0000000..4a26324 --- /dev/null +++ b/sound/soc/codecs/ak4641.h @@ -0,0 +1,47 @@ +/* + * ak4641.h -- AK4641 SoC Audio driver + * + * Copyright 2008 Harald Welte laforge@gnufiish.org + * + * Based on ak4535.h + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#ifndef _AK4641_H +#define _AK4641_H + +/* AK4641 register space */ + +#define AK4641_PM1 0x00 +#define AK4641_PM2 0x01 +#define AK4641_SIG1 0x02 +#define AK4641_SIG2 0x03 +#define AK4641_MODE1 0x04 +#define AK4641_MODE2 0x05 +#define AK4641_DAC 0x06 +#define AK4641_MIC 0x07 +#define AK4641_TIMER 0x08 +#define AK4641_ALC1 0x09 +#define AK4641_ALC2 0x0a +#define AK4641_PGA 0x0b +#define AK4641_LATT 0x0c +#define AK4641_RATT 0x0d +#define AK4641_VOL 0x0e +#define AK4641_STATUS 0x0f +#define AK4641_EQLO 0x10 +#define AK4641_EQMID 0x11 +#define AK4641_EQHI 0x12 +#define AK4641_BTIF 0x13 + +#define AK4641_CACHEREGNUM 0x14 + + + +#define AK4641_DAI_HIFI 0 +#define AK4641_DAI_VOICE 1 + + +#endif

AK4641 connected via I2S and I2C, jack detection via GPIO.

Signed-off-by: Philipp Zabel philipp.zabel@gmail.com Signed-off-by: Dmitry Artamonow mad_soft@inbox.ru --- sound/soc/pxa/Kconfig | 9 ++ sound/soc/pxa/Makefile | 2 + sound/soc/pxa/hx4700.c | 253 ++++++++++++++++++++++++++++++++++++++++++++++++ 3 files changed, 264 insertions(+), 0 deletions(-) create mode 100644 sound/soc/pxa/hx4700.c

diff --git a/sound/soc/pxa/Kconfig b/sound/soc/pxa/Kconfig index 37f191b..1d7e7a5 100644 --- a/sound/soc/pxa/Kconfig +++ b/sound/soc/pxa/Kconfig @@ -154,6 +154,15 @@ config SND_SOC_RAUMFELD help Say Y if you want to add support for SoC audio on Raumfeld devices

+config SND_PXA2XX_SOC_HX4700 + tristate "SoC Audio support for HP iPAQ hx4700" + depends on SND_PXA2XX_SOC && MACH_H4700 + select SND_PXA2XX_SOC_I2S + select SND_SOC_AK4641 + help + Say Y if you want to add support for SoC audio on the + HP iPAQ hx4700. + config SND_PXA2XX_SOC_MAGICIAN tristate "SoC Audio support for HTC Magician" depends on SND_PXA2XX_SOC && MACH_MAGICIAN diff --git a/sound/soc/pxa/Makefile b/sound/soc/pxa/Makefile index 0766016..af35762 100644 --- a/sound/soc/pxa/Makefile +++ b/sound/soc/pxa/Makefile @@ -22,6 +22,7 @@ snd-soc-palm27x-objs := palm27x.o snd-soc-saarb-objs := saarb.o snd-soc-tavorevb3-objs := tavorevb3.o snd-soc-zylonite-objs := zylonite.o +snd-soc-hx4700-objs := hx4700.o snd-soc-magician-objs := magician.o snd-soc-mioa701-objs := mioa701_wm9713.o snd-soc-z2-objs := z2.o @@ -37,6 +38,7 @@ obj-$(CONFIG_SND_PXA2XX_SOC_E800) += snd-soc-e800.o obj-$(CONFIG_SND_PXA2XX_SOC_SPITZ) += snd-soc-spitz.o obj-$(CONFIG_SND_PXA2XX_SOC_EM_X270) += snd-soc-em-x270.o obj-$(CONFIG_SND_PXA2XX_SOC_PALM27X) += snd-soc-palm27x.o +obj-$(CONFIG_SND_PXA2XX_SOC_HX4700) += snd-soc-hx4700.o obj-$(CONFIG_SND_PXA2XX_SOC_MAGICIAN) += snd-soc-magician.o obj-$(CONFIG_SND_PXA2XX_SOC_MIOA701) += snd-soc-mioa701.o obj-$(CONFIG_SND_PXA2XX_SOC_Z2) += snd-soc-z2.o diff --git a/sound/soc/pxa/hx4700.c b/sound/soc/pxa/hx4700.c new file mode 100644 index 0000000..e629a88 --- /dev/null +++ b/sound/soc/pxa/hx4700.c @@ -0,0 +1,253 @@ +/* + * SoC audio for HP iPAQ hx4700 + * + * Copyright (c) 2009 Philipp Zabel + * + * 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. + * + */ + +#include <linux/module.h> +#include <linux/timer.h> +#include <linux/interrupt.h> +#include <linux/platform_device.h> +#include <linux/delay.h> +#include <linux/gpio.h> + +#include <sound/core.h> +#include <sound/jack.h> +#include <sound/pcm.h> +#include <sound/pcm_params.h> +#include <sound/soc.h> + +#include <mach/hx4700.h> +#include <asm/mach-types.h> +#include "pxa2xx-i2s.h" + +#include "../codecs/ak4641.h" + +static struct snd_soc_jack hs_jack; + +/* Headphones jack detection DAPM pin */ +static struct snd_soc_jack_pin hs_jack_pin[] = { + { + .pin = "Headphone Jack", + .mask = SND_JACK_HEADPHONE, + }, + { + .pin = "Speaker", + /* disable speaker when hp jack is inserted */ + .mask = SND_JACK_HEADPHONE, + .invert = 1, + }, +}; + +/* Headphones jack detection GPIO */ +static struct snd_soc_jack_gpio hs_jack_gpio = { + .gpio = GPIO75_HX4700_EARPHONE_nDET, + .invert = true, + .name = "hp-gpio", + .report = SND_JACK_HEADPHONE, + .debounce_time = 200, +}; + +/* + * iPAQ hx4700 uses I2S for capture and playback. + */ +static int hx4700_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_dai *codec_dai = rtd->codec_dai; + struct snd_soc_dai *cpu_dai = rtd->cpu_dai; + int ret = 0; + + /* set codec DAI configuration */ + ret = snd_soc_dai_set_fmt(codec_dai, + SND_SOC_DAIFMT_MSB | SND_SOC_DAIFMT_NB_NF | + SND_SOC_DAIFMT_CBS_CFS); + if (ret < 0) + return ret; + + /* set cpu DAI configuration */ + ret = snd_soc_dai_set_fmt(cpu_dai, + SND_SOC_DAIFMT_MSB | SND_SOC_DAIFMT_NB_NF | + SND_SOC_DAIFMT_CBS_CFS); + if (ret < 0) + return ret; + + /* set the I2S system clock as output */ + ret = snd_soc_dai_set_sysclk(cpu_dai, PXA2XX_I2S_SYSCLK, 0, + SND_SOC_CLOCK_OUT); + if (ret < 0) + return ret; + + return 0; +} + +static struct snd_soc_ops hx4700_ops = { + .hw_params = hx4700_hw_params, +}; + +static int hx4700_spk_power(struct snd_soc_dapm_widget *w, + struct snd_kcontrol *k, int event) +{ + gpio_set_value(GPIO107_HX4700_SPK_nSD, !!SND_SOC_DAPM_EVENT_ON(event)); + return 0; +} + +static int hx4700_hp_power(struct snd_soc_dapm_widget *w, + struct snd_kcontrol *k, int event) +{ + gpio_set_value(GPIO92_HX4700_HP_DRIVER, !!SND_SOC_DAPM_EVENT_ON(event)); + return 0; +} + +/* hx4700 machine dapm widgets */ +static const struct snd_soc_dapm_widget ak4641_dapm_widgets[] = { + SND_SOC_DAPM_HP("Headphone Jack", hx4700_hp_power), + SND_SOC_DAPM_SPK("Speaker", hx4700_spk_power), + SND_SOC_DAPM_MIC("Built-in Microphone", NULL), +}; + +/* hx4700 machine audio_map */ +static const struct snd_soc_dapm_route audio_map[] = { + + /* Headphone connected to LOUT, ROUT */ + {"Headphone Jack", NULL, "LOUT"}, + {"Headphone Jack", NULL, "ROUT"}, + + /* Speaker connected to MOUT2 */ + {"Speaker", NULL, "MOUT2"}, + + /* Microphone connected to MICIN */ + {"MICIN", NULL, "Built-in Microphone"}, + {"AIN", NULL, "MICOUT"}, +}; + +static struct snd_soc_card snd_soc_card_hx4700; + +/* + * Logic for a ak4641 as connected on a HP iPAQ hx4700 + */ +static int hx4700_ak4641_init(struct snd_soc_pcm_runtime *rtd) +{ + struct snd_soc_codec *codec = rtd->codec; + struct snd_soc_dapm_context *dapm = &codec->dapm; + int err; + + /* NC codec pins */ + /* FIXME: is anything connected here? */ + snd_soc_dapm_nc_pin(dapm, "MOUT1"); + snd_soc_dapm_nc_pin(dapm, "MICEXT"); + snd_soc_dapm_nc_pin(dapm, "AUX"); + + /* Add hx4700 specific widgets */ + snd_soc_dapm_new_controls(dapm, ak4641_dapm_widgets, + ARRAY_SIZE(ak4641_dapm_widgets)); + + /* Set up hx4700 specific audio path interconnects */ + snd_soc_dapm_add_routes(dapm, audio_map, ARRAY_SIZE(audio_map)); + + snd_soc_dapm_sync(dapm); + + /* Jack detection API stuff */ + err = snd_soc_jack_new(codec, "Headphone Jack", + SND_JACK_HEADPHONE, &hs_jack); + if (err) + return err; + + err = snd_soc_jack_add_pins(&hs_jack, ARRAY_SIZE(hs_jack_pin), + hs_jack_pin); + if (err) + return err; + + err = snd_soc_jack_add_gpios(&hs_jack, 1, &hs_jack_gpio); + + return err; +} + +/* hx4700 digital audio interface glue - connects codec <--> CPU */ +static struct snd_soc_dai_link hx4700_dai[] = { +{ + .name = "ak4641", + .stream_name = "AK4641", + .cpu_dai_name = "pxa2xx-i2s", + .codec_dai_name = "ak4641-hifi", + .platform_name = "pxa-pcm-audio", + .codec_name = "ak4641-codec.0-0012", + .init = hx4700_ak4641_init, + .ops = &hx4700_ops, +}, +}; + +/* hx4700 audio machine driver */ +static struct snd_soc_card snd_soc_card_hx4700 = { + .name = "iPAQ hx4700", + .dai_link = hx4700_dai, + .num_links = ARRAY_SIZE(hx4700_dai), +}; + +static struct platform_device *hx4700_snd_device; + +static int __init hx4700_init(void) +{ + int ret; + + if (!machine_is_h4700()) + return -ENODEV; + + ret = gpio_request(GPIO107_HX4700_SPK_nSD, "SPK_POWER"); + if (ret) + goto err_request_spk; + ret = gpio_request(GPIO92_HX4700_HP_DRIVER, "EP_POWER"); + if (ret) + goto err_request_ep; + + gpio_direction_output(GPIO107_HX4700_SPK_nSD, 1); + gpio_direction_output(GPIO92_HX4700_HP_DRIVER, 0); + + hx4700_snd_device = platform_device_alloc("soc-audio", -1); + if (!hx4700_snd_device) { + ret = -ENOMEM; + goto err_pdev; + } + + platform_set_drvdata(hx4700_snd_device, &snd_soc_card_hx4700); + ret = platform_device_add(hx4700_snd_device); + if (ret) { + platform_device_put(hx4700_snd_device); + goto err_pdev; + } + + return 0; + +err_pdev: + gpio_free(GPIO92_HX4700_HP_DRIVER); +err_request_ep: + gpio_free(GPIO107_HX4700_SPK_nSD); +err_request_spk: + return ret; +} + +static void __exit hx4700_exit(void) +{ + snd_soc_jack_free_gpios(&hs_jack, 1, &hs_jack_gpio); + platform_device_unregister(hx4700_snd_device); + + gpio_set_value(GPIO92_HX4700_HP_DRIVER, 0); + gpio_set_value(GPIO107_HX4700_SPK_nSD, 0); + + gpio_free(GPIO92_HX4700_HP_DRIVER); + gpio_free(GPIO107_HX4700_SPK_nSD); +} + +module_init(hx4700_init); +module_exit(hx4700_exit); + +MODULE_AUTHOR("Philipp Zabel"); +MODULE_DESCRIPTION("ALSA SoC iPAQ hx4700"); +MODULE_LICENSE("GPL");

From: Philipp Zabel philipp.zabel@gmail.com

From: Philipp Zabel philipp.zabel@gmail.com

Also rename AK4641 power GPIOs to document the codec chip.

Signed-off-by: Philipp Zabel philipp.zabel@gmail.com --- arch/arm/mach-pxa/hx4700.c | 18 ++++++++++++++++++ arch/arm/mach-pxa/include/mach/hx4700.h | 4 ++-- 2 files changed, 20 insertions(+), 2 deletions(-)

diff --git a/arch/arm/mach-pxa/hx4700.c b/arch/arm/mach-pxa/hx4700.c index 76d93a2..da9ebd1 100644 --- a/arch/arm/mach-pxa/hx4700.c +++ b/arch/arm/mach-pxa/hx4700.c @@ -45,6 +45,7 @@ #include <mach/irda.h> #include <mach/pxa2xx_spi.h>

+#include <sound/ak4641.h> #include <video/platform_lcd.h> #include <video/w100fb.h>

@@ -801,6 +802,22 @@ static struct i2c_board_info __initdata pi2c_board_info[] = { };

/* + * Asahi Kasei AK4641 on I2C + */ + +static struct ak4641_platform_data ak4641_info = { + .gpio_power = GPIO27_HX4700_AK4641_POWER, + .gpio_npdn = GPIO109_HX4700_AK4641_nPDN, +}; + +static struct i2c_board_info i2c_board_info[] __initdata = { + { + I2C_BOARD_INFO("ak4641", 0x12), + .platform_data = &ak4641_info, + }, +}; + +/* * PCMCIA */

@@ -859,6 +876,7 @@ static void __init hx4700_init(void) pxa_set_ficp_info(&ficp_info); pxa27x_set_i2c_power_info(NULL); pxa_set_i2c_info(NULL); + i2c_register_board_info(0, ARRAY_AND_SIZE(i2c_board_info)); i2c_register_board_info(1, ARRAY_AND_SIZE(pi2c_board_info)); pxa2xx_set_spi_info(2, &pxa_ssp2_master_info); spi_register_board_info(ARRAY_AND_SIZE(tsc2046_board_info)); diff --git a/arch/arm/mach-pxa/include/mach/hx4700.h b/arch/arm/mach-pxa/include/mach/hx4700.h index 3740844..73cd586 100644 --- a/arch/arm/mach-pxa/include/mach/hx4700.h +++ b/arch/arm/mach-pxa/include/mach/hx4700.h @@ -29,7 +29,7 @@ #define GPIO14_HX4700_nWLAN_IRQ 14 #define GPIO18_HX4700_RDY 18 #define GPIO22_HX4700_LCD_RL 22 -#define GPIO27_HX4700_CODEC_ON 27 +#define GPIO27_HX4700_AK4641_POWER 27 #define GPIO32_HX4700_RS232_ON 32 #define GPIO52_HX4700_CPU_nBATT_FAULT 52 #define GPIO58_HX4700_TSC2046_nPENIRQ 58 @@ -67,7 +67,7 @@ #define GPIO105_HX4700_nIR_ON 105 #define GPIO106_HX4700_CPU_BT_nRESET 106 #define GPIO107_HX4700_SPK_nSD 107 -#define GPIO109_HX4700_CODEC_nPDN 109 +#define GPIO109_HX4700_AK4641_nPDN 109 #define GPIO110_HX4700_LCD_LVDD_3V3_ON 110 #define GPIO111_HX4700_LCD_AVDD_3V3_ON 111 #define GPIO112_HX4700_LCD_N2V7_7V3_ON 112