diff options
Diffstat (limited to 'ANDROID_3.4.5/sound/soc/codecs/ak4641.c')
| -rw-r--r-- | ANDROID_3.4.5/sound/soc/codecs/ak4641.c | 664 |
1 files changed, 0 insertions, 664 deletions
diff --git a/ANDROID_3.4.5/sound/soc/codecs/ak4641.c b/ANDROID_3.4.5/sound/soc/codecs/ak4641.c deleted file mode 100644 index c4d165a4..00000000 --- a/ANDROID_3.4.5/sound/soc/codecs/ak4641.c +++ /dev/null @@ -1,664 +0,0 @@ -/* - * ak4641.c -- AK4641 ALSA Soc Audio driver - * - * Copyright (C) 2008 Harald Welte <laforge@gnufiish.org> - * Copyright (C) 2011 Dmitry Artamonow <mad_soft@inbox.ru> - * - * 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/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 <sound/ak4641.h> - -#include "ak4641.h" - -/* codec private data */ -struct ak4641_priv { - unsigned int sysclk; - int deemph; - int playback_fs; -}; - -/* - * 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 const int deemph_settings[] = {44100, 0, 48000, 32000}; - -static int ak4641_set_deemph(struct snd_soc_codec *codec) -{ - struct ak4641_priv *ak4641 = snd_soc_codec_get_drvdata(codec); - int i, best = 0; - - for (i = 0 ; i < ARRAY_SIZE(deemph_settings); i++) { - /* if deemphasis is on, select the nearest available rate */ - if (ak4641->deemph && deemph_settings[i] != 0 && - abs(deemph_settings[i] - ak4641->playback_fs) < - abs(deemph_settings[best] - ak4641->playback_fs)) - best = i; - - if (!ak4641->deemph && deemph_settings[i] == 0) - best = i; - } - - dev_dbg(codec->dev, "Set deemphasis %d\n", best); - - return snd_soc_update_bits(codec, AK4641_DAC, 0x3, best); -} - -static int ak4641_put_deemph(struct snd_kcontrol *kcontrol, - struct snd_ctl_elem_value *ucontrol) -{ - struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); - struct ak4641_priv *ak4641 = snd_soc_codec_get_drvdata(codec); - int deemph = ucontrol->value.enumerated.item[0]; - - if (deemph > 1) - return -EINVAL; - - ak4641->deemph = deemph; - - return ak4641_set_deemph(codec); -} - -static int ak4641_get_deemph(struct snd_kcontrol *kcontrol, - struct snd_ctl_elem_value *ucontrol) -{ - struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); - struct ak4641_priv *ak4641 = snd_soc_codec_get_drvdata(codec); - - ucontrol->value.enumerated.item[0] = ak4641->deemph; - return 0; -}; - -static const char *ak4641_mono_out[] = {"(L + R)/2", "Hi-Z"}; -static const char *ak4641_hp_out[] = {"Stereo", "Mono"}; -static const char *ak4641_mic_select[] = {"Internal", "External"}; -static const char *ak4641_mic_or_dac[] = {"Microphone", "Voice DAC"}; - - -static const DECLARE_TLV_DB_SCALE(mono_gain_tlv, -1700, 2300, 0); -static const DECLARE_TLV_DB_SCALE(mic_boost_tlv, 0, 2000, 0); -static const DECLARE_TLV_DB_SCALE(eq_tlv, -1050, 150, 0); -static const DECLARE_TLV_DB_SCALE(master_tlv, -12750, 50, 0); -static const DECLARE_TLV_DB_SCALE(mic_stereo_sidetone_tlv, -2700, 300, 0); -static const DECLARE_TLV_DB_SCALE(mic_mono_sidetone_tlv, -400, 400, 0); -static const DECLARE_TLV_DB_SCALE(capture_tlv, -800, 50, 0); -static const DECLARE_TLV_DB_SCALE(alc_tlv, -800, 50, 0); -static const DECLARE_TLV_DB_SCALE(aux_in_tlv, -2100, 300, 0); - - -static const struct soc_enum ak4641_mono_out_enum = - SOC_ENUM_SINGLE(AK4641_SIG1, 6, 2, ak4641_mono_out); -static const struct soc_enum ak4641_hp_out_enum = - SOC_ENUM_SINGLE(AK4641_MODE2, 2, 2, ak4641_hp_out); -static const struct soc_enum ak4641_mic_select_enum = - SOC_ENUM_SINGLE(AK4641_MIC, 1, 2, ak4641_mic_select); -static const struct soc_enum ak4641_mic_or_dac_enum = - 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_mono_out_enum), - SOC_SINGLE_TLV("Mono 1 Gain Volume", AK4641_SIG1, 7, 1, 1, - mono_gain_tlv), - SOC_ENUM("Headphone Output", ak4641_hp_out_enum), - SOC_SINGLE_BOOL_EXT("Playback Deemphasis Switch", 0, - ak4641_get_deemph, ak4641_put_deemph), - - SOC_SINGLE_TLV("Mic Boost Volume", AK4641_MIC, 0, 1, 0, mic_boost_tlv), - - 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_TLV("ALC Volume", AK4641_ALC2, 0, 71, 0, alc_tlv), - SOC_SINGLE("Left Out Enable Switch", AK4641_SIG2, 1, 1, 0), - SOC_SINGLE("Right Out Enable Switch", AK4641_SIG2, 0, 1, 0), - - SOC_SINGLE_TLV("Capture Volume", AK4641_PGA, 0, 71, 0, capture_tlv), - - SOC_DOUBLE_R_TLV("Master Playback Volume", AK4641_LATT, - AK4641_RATT, 0, 255, 1, master_tlv), - - SOC_SINGLE_TLV("AUX In Volume", AK4641_VOL, 0, 15, 0, aux_in_tlv), - - SOC_SINGLE("Equalizer Switch", AK4641_DAC, 2, 1, 0), - SOC_SINGLE_TLV("EQ1 100 Hz Volume", AK4641_EQLO, 0, 15, 1, eq_tlv), - SOC_SINGLE_TLV("EQ2 250 Hz Volume", AK4641_EQLO, 4, 15, 1, eq_tlv), - SOC_SINGLE_TLV("EQ3 1 kHz Volume", AK4641_EQMID, 0, 15, 1, eq_tlv), - SOC_SINGLE_TLV("EQ4 3.5 kHz Volume", AK4641_EQMID, 4, 15, 1, eq_tlv), - SOC_SINGLE_TLV("EQ5 10 kHz Volume", AK4641_EQHI, 0, 15, 1, eq_tlv), -}; - -/* Mono 1 Mixer */ -static const struct snd_kcontrol_new ak4641_mono1_mixer_controls[] = { - SOC_DAPM_SINGLE_TLV("Mic Mono Sidetone Volume", AK4641_VOL, 7, 1, 0, - mic_mono_sidetone_tlv), - 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_TLV("Mic Sidetone Volume", AK4641_VOL, 4, 7, 0, - mic_stereo_sidetone_tlv), - 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_mic_select_enum); - -/* Input mux */ -static const struct snd_kcontrol_new ak4641_input_mux_control = - SOC_DAPM_ENUM("Input Select", ak4641_mic_or_dac_enum); - -/* 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), - - 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_DAC("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 ak4641_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, "Line Out"}, - {"ROUT", NULL, "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_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_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); - int rate = params_rate(params), fs = 256; - u8 mode2; - - if (rate) - fs = ak4641->sysclk / rate; - else - return -EINVAL; - - /* set fs */ - switch (fs) { - case 1024: - mode2 = (0x2 << 5); - break; - case 512: - mode2 = (0x1 << 5); - break; - case 256: - mode2 = (0x0 << 5); - break; - default: - dev_err(codec->dev, "Error: unsupported fs=%d\n", fs); - return -EINVAL; - } - - snd_soc_update_bits(codec, AK4641_MODE2, (0x3 << 5), mode2); - - /* Update de-emphasis filter for the new rate */ - if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { - ak4641->playback_fs = rate; - ak4641_set_deemph(codec); - }; - - 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; - int ret; - - /* 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; - } - - ret = snd_soc_update_bits(codec, AK4641_BTIF, (0x3 << 5), btif); - if (ret < 0) - return ret; - - 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 = 0x02; - break; - case SND_SOC_DAIFMT_LEFT_J: - mode1 = 0x01; - break; - default: - return -EINVAL; - } - - return snd_soc_write(codec, AK4641_MODE1, mode1); -} - -static int ak4641_mute(struct snd_soc_dai *dai, int mute) -{ - struct snd_soc_codec *codec = dai->codec; - - return snd_soc_update_bits(codec, AK4641_DAC, 0x20, mute ? 0x20 : 0); -} - -static int ak4641_set_bias_level(struct snd_soc_codec *codec, - enum snd_soc_bias_level level) -{ - struct ak4641_platform_data *pdata = codec->dev->platform_data; - int ret; - - switch (level) { - case SND_SOC_BIAS_ON: - /* unmute */ - snd_soc_update_bits(codec, AK4641_DAC, 0x20, 0); - break; - case SND_SOC_BIAS_PREPARE: - /* mute */ - snd_soc_update_bits(codec, AK4641_DAC, 0x20, 0x20); - break; - case SND_SOC_BIAS_STANDBY: - if (codec->dapm.bias_level == SND_SOC_BIAS_OFF) { - if (pdata && gpio_is_valid(pdata->gpio_power)) - gpio_set_value(pdata->gpio_power, 1); - mdelay(1); - if (pdata && gpio_is_valid(pdata->gpio_npdn)) - gpio_set_value(pdata->gpio_npdn, 1); - mdelay(1); - - ret = snd_soc_cache_sync(codec); - if (ret) { - dev_err(codec->dev, - "Failed to sync cache: %d\n", ret); - return ret; - } - } - snd_soc_update_bits(codec, AK4641_PM1, 0x80, 0x80); - snd_soc_update_bits(codec, AK4641_PM2, 0x80, 0); - break; - case SND_SOC_BIAS_OFF: - snd_soc_update_bits(codec, AK4641_PM1, 0x80, 0); - if (pdata && gpio_is_valid(pdata->gpio_npdn)) - gpio_set_value(pdata->gpio_npdn, 0); - if (pdata && gpio_is_valid(pdata->gpio_power)) - gpio_set_value(pdata->gpio_power, 0); - codec->cache_sync = 1; - break; - } - codec->dapm.bias_level = level; - return 0; -} - -#define AK4641_RATES (SNDRV_PCM_RATE_8000_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 const 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 const struct snd_soc_dai_ops ak4641_pcm_dai_ops = { - .hw_params = NULL, /* rates are controlled by BT chip */ - .set_fmt = ak4641_pcm_set_dai_fmt, - .digital_mute = ak4641_mute, - .set_sysclk = ak4641_set_dai_sysclk, -}; - -static 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, - .symmetric_rates = 1, -}, -{ - .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, - .symmetric_rates = 1, -}, -}; - -static int ak4641_suspend(struct snd_soc_codec *codec) -{ - ak4641_set_bias_level(codec, SND_SOC_BIAS_OFF); - return 0; -} - -static int ak4641_resume(struct snd_soc_codec *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_one(pdata->gpio_power, - GPIOF_OUT_INIT_LOW, "ak4641 power"); - if (ret) - goto err_out; - } - if (gpio_is_valid(pdata->gpio_npdn)) { - ret = gpio_request_one(pdata->gpio_npdn, - GPIOF_OUT_INIT_LOW, "ak4641 npdn"); - if (ret) - goto err_gpio; - - 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); - - 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, - .controls = ak4641_snd_controls, - .num_controls = ARRAY_SIZE(ak4641_snd_controls), - .dapm_widgets = ak4641_dapm_widgets, - .num_dapm_widgets = ARRAY_SIZE(ak4641_dapm_widgets), - .dapm_routes = ak4641_audio_map, - .num_dapm_routes = ARRAY_SIZE(ak4641_audio_map), - .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, -}; - - -static int __devinit ak4641_i2c_probe(struct i2c_client *i2c, - const struct i2c_device_id *id) -{ - struct ak4641_priv *ak4641; - int ret; - - ak4641 = devm_kzalloc(&i2c->dev, 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)); - return ret; -} - -static int __devexit ak4641_i2c_remove(struct i2c_client *i2c) -{ - snd_soc_unregister_codec(&i2c->dev); - 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", - .owner = THIS_MODULE, - }, - .probe = ak4641_i2c_probe, - .remove = __devexit_p(ak4641_i2c_remove), - .id_table = ak4641_i2c_id, -}; - -static int __init ak4641_modinit(void) -{ - int ret; - - ret = i2c_add_driver(&ak4641_i2c_driver); - if (ret != 0) - pr_err("Failed to register AK4641 I2C driver: %d\n", ret); - - return ret; -} -module_init(ak4641_modinit); - -static void __exit ak4641_exit(void) -{ - i2c_del_driver(&ak4641_i2c_driver); -} -module_exit(ak4641_exit); - -MODULE_DESCRIPTION("SoC AK4641 driver"); -MODULE_AUTHOR("Harald Welte <laforge@gnufiish.org>"); -MODULE_LICENSE("GPL"); |