/* * uda1380.c - Philips UDA1380 ALSA SoC audio driver * * 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. * * Copyright (c) 2007-2009 Philipp Zabel * * Modified by Richard Purdie to fit into SoC * codec model. * * Copyright (c) 2005 Giorgio Padrin * Copyright 2005 Openedhand Ltd. */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include "uda1380.h" /* codec private data */ struct uda1380_priv { struct snd_soc_codec *codec; unsigned int dac_clk; struct work_struct work; void *control_data; }; /* * uda1380 register cache */ static const u16 uda1380_reg[UDA1380_CACHEREGNUM] = { 0x0502, 0x0000, 0x0000, 0x3f3f, 0x0202, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0xff00, 0x0000, 0x4800, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x8000, 0x0002, 0x0000, }; static unsigned long uda1380_cache_dirty; /* * read uda1380 register cache */ static inline unsigned int uda1380_read_reg_cache(struct snd_soc_codec *codec, unsigned int reg) { u16 *cache = codec->reg_cache; if (reg == UDA1380_RESET) return 0; if (reg >= UDA1380_CACHEREGNUM) return -1; return cache[reg]; } /* * write uda1380 register cache */ static inline void uda1380_write_reg_cache(struct snd_soc_codec *codec, u16 reg, unsigned int value) { u16 *cache = codec->reg_cache; if (reg >= UDA1380_CACHEREGNUM) return; if ((reg >= 0x10) && (cache[reg] != value)) set_bit(reg - 0x10, &uda1380_cache_dirty); cache[reg] = value; } /* * write to the UDA1380 register space */ static int uda1380_write(struct snd_soc_codec *codec, unsigned int reg, unsigned int value) { u8 data[3]; /* data is * data[0] is register offset * data[1] is MS byte * data[2] is LS byte */ data[0] = reg; data[1] = (value & 0xff00) >> 8; data[2] = value & 0x00ff; uda1380_write_reg_cache(codec, reg, value); /* the interpolator & decimator regs must only be written when the * codec DAI is active. */ if (!snd_soc_codec_is_active(codec) && (reg >= UDA1380_MVOL)) return 0; pr_debug("uda1380: hw write %x val %x\n", reg, value); if (codec->hw_write(codec->control_data, data, 3) == 3) { unsigned int val; i2c_master_send(codec->control_data, data, 1); i2c_master_recv(codec->control_data, data, 2); val = (data[0]<<8) | data[1]; if (val != value) { pr_debug("uda1380: READ BACK VAL %x\n", (data[0]<<8) | data[1]); return -EIO; } if (reg >= 0x10) clear_bit(reg - 0x10, &uda1380_cache_dirty); return 0; } else return -EIO; } static void uda1380_sync_cache(struct snd_soc_codec *codec) { int reg; u8 data[3]; u16 *cache = codec->reg_cache; /* Sync reg_cache with the hardware */ for (reg = 0; reg < UDA1380_MVOL; reg++) { data[0] = reg; data[1] = (cache[reg] & 0xff00) >> 8; data[2] = cache[reg] & 0x00ff; if (codec->hw_write(codec->control_data, data, 3) != 3) dev_err(codec->dev, "%s: write to reg 0x%x failed\n", __func__, reg); } } static int uda1380_reset(struct snd_soc_codec *codec) { struct uda1380_platform_data *pdata = codec->dev->platform_data; if (gpio_is_valid(pdata->gpio_reset)) { gpio_set_value(pdata->gpio_reset, 1); mdelay(1); gpio_set_value(pdata->gpio_reset, 0); } else { u8 data[3]; data[0] = UDA1380_RESET; data[1] = 0; data[2] = 0; if (codec->hw_write(codec->control_data, data, 3) != 3) { dev_err(codec->dev, "%s: failed\n", __func__); return -EIO; } } return 0; } static void uda1380_flush_work(struct work_struct *work) { struct uda1380_priv *uda1380 = container_of(work, struct uda1380_priv, work); struct snd_soc_codec *uda1380_codec = uda1380->codec; int bit, reg; for_each_set_bit(bit, &uda1380_cache_dirty, UDA1380_CACHEREGNUM - 0x10) { reg = 0x10 + bit; pr_debug("uda1380: flush reg %x val %x:\n", reg, uda1380_read_reg_cache(uda1380_codec, reg)); uda1380_write(uda1380_codec, reg, uda1380_read_reg_cache(uda1380_codec, reg)); clear_bit(bit, &uda1380_cache_dirty); } } /* declarations of ALSA reg_elem_REAL controls */ static const char *uda1380_deemp[] = { "None", "32kHz", "44.1kHz", "48kHz", "96kHz", }; static const char *uda1380_input_sel[] = { "Line", "Mic + Line R", "Line L", "Mic", }; static const char *uda1380_output_sel[] = { "DAC", "Analog Mixer", }; static const char *uda1380_spf_mode[] = { "Flat", "Minimum1", "Minimum2", "Maximum" }; static const char *uda1380_capture_sel[] = { "ADC", "Digital Mixer" }; static const char *uda1380_sel_ns[] = { "3rd-order", "5th-order" }; static const char *uda1380_mix_control[] = { "off", "PCM only", "before sound processing", "after sound processing" }; static const char *uda1380_sdet_setting[] = { "3200", "4800", "9600", "19200" }; static const char *uda1380_os_setting[] = { "single-speed", "double-speed (no mixing)", "quad-speed (no mixing)" }; static const struct soc_enum uda1380_deemp_enum[] = { SOC_ENUM_SINGLE(UDA1380_DEEMP, 8, ARRAY_SIZE(uda1380_deemp), uda1380_deemp), SOC_ENUM_SINGLE(UDA1380_DEEMP, 0, ARRAY_SIZE(uda1380_deemp), uda1380_deemp), }; static SOC_ENUM_SINGLE_DECL(uda1380_input_sel_enum, UDA1380_ADC, 2, uda1380_input_sel); /* SEL_MIC, SEL_LNA */ static SOC_ENUM_SINGLE_DECL(uda1380_output_sel_enum, UDA1380_PM, 7, uda1380_output_sel); /* R02_EN_AVC */ static SOC_ENUM_SINGLE_DECL(uda1380_spf_enum, UDA1380_MODE, 14, uda1380_spf_mode); /* M */ static SOC_ENUM_SINGLE_DECL(uda1380_capture_sel_enum, UDA1380_IFACE, 6, uda1380_capture_sel); /* SEL_SOURCE */ static SOC_ENUM_SINGLE_DECL(uda1380_sel_ns_enum, UDA1380_MIXER, 14, uda1380_sel_ns); /* SEL_NS */ static SOC_ENUM_SINGLE_DECL(uda1380_mix_enum, UDA1380_MIXER, 12, uda1380_mix_control); /* MIX, MIX_POS */ static SOC_ENUM_SINGLE_DECL(uda1380_sdet_enum, UDA1380_MIXER, 4, uda1380_sdet_setting); /* SD_VALUE */ static SOC_ENUM_SINGLE_DECL(uda1380_os_enum, UDA1380_MIXER, 0, uda1380_os_setting); /* OS */ /* * from -48 dB in 1.5 dB steps (mute instead of -49.5 dB) */ static DECLARE_TLV_DB_SCALE(amix_tlv, -4950, 150, 1); /* * from -78 dB in 1 dB steps (3 dB steps, really. LSB are ignored), * from -66 dB in 0.5 dB steps (2 dB steps, really) and * from -52 dB in 0.25 dB steps */ static const DECLARE_TLV_DB_RANGE(mvol_tlv, 0, 15, TLV_DB_SCALE_ITEM(-8200, 100, 1), 16, 43, TLV_DB_SCALE_ITEM(-6600, 50, 0), 44, 252, TLV_DB_SCALE_ITEM(-5200, 25, 0) ); /* * from -72 dB in 1.5 dB steps (6 dB steps really), * from -66 dB in 0.75 dB steps (3 dB steps really), * from -60 dB in 0.5 dB steps (2 dB steps really) and * from -46 dB in 0.25 dB steps */ static const DECLARE_TLV_DB_RANGE(vc_tlv, 0, 7, TLV_DB_SCALE_ITEM(-7800, 150, 1), 8, 15, TLV_DB_SCALE_ITEM(-6600, 75, 0), 16, 43, TLV_DB_SCALE_ITEM(-6000, 50, 0), 44, 228, TLV_DB_SCALE_ITEM(-4600, 25, 0) ); /* from 0 to 6 dB in 2 dB steps if SPF mode != flat */ static DECLARE_TLV_DB_SCALE(tr_tlv, 0, 200, 0); /* from 0 to 24 dB in 2 dB steps, if SPF mode == maximum, otherwise cuts * off at 18 dB max) */ static DECLARE_TLV_DB_SCALE(bb_tlv, 0, 200, 0); /* from -63 to 24 dB in 0.5 dB steps (-128...48) */ static DECLARE_TLV_DB_SCALE(dec_tlv, -6400, 50, 1); /* from 0 to 24 dB in 3 dB steps */ static DECLARE_TLV_DB_SCALE(pga_tlv, 0, 300, 0); /* from 0 to 30 dB in 2 dB steps */ static DECLARE_TLV_DB_SCALE(vga_tlv, 0, 200, 0); static const struct snd_kcontrol_new uda1380_snd_controls[] = { SOC_DOUBLE_TLV("Analog Mixer Volume", UDA1380_AMIX, 0, 8, 44, 1, amix_tlv), /* AVCR, AVCL */ SOC_DOUBLE_TLV("Master Playback Volume", UDA1380_MVOL, 0, 8, 252, 1, mvol_tlv), /* MVCL, MVCR */ SOC_SINGLE_TLV("ADC Playback Volume", UDA1380_MIXVOL, 8, 228, 1, vc_tlv), /* VC2 */ SOC_SINGLE_TLV("PCM Playback Volume", UDA1380_MIXVOL, 0, 228, 1, vc_tlv), /* VC1 */ SOC_ENUM("Sound Processing Filter", uda1380_spf_enum), /* M */ SOC_DOUBLE_TLV("Tone Control - Treble", UDA1380_MODE, 4, 12, 3, 0, tr_tlv), /* TRL, TRR */ SOC_DOUBLE_TLV("Tone Control - Bass", UDA1380_MODE, 0, 8, 15, 0, bb_tlv), /* BBL, BBR */ /**/ SOC_SINGLE("Master Playback Switch", UDA1380_DEEMP, 14, 1, 1), /* MTM */ SOC_SINGLE("ADC Playback Switch", UDA1380_DEEMP, 11, 1, 1), /* MT2 from decimation filter */ SOC_ENUM("ADC Playback De-emphasis", uda1380_deemp_enum[0]), /* DE2 */ SOC_SINGLE("PCM Playback Switch", UDA1380_DEEMP, 3, 1, 1), /* MT1, from digital data input */ SOC_ENUM("PCM Playback De-emphasis", uda1380_deemp_enum[1]), /* DE1 */ SOC_SINGLE("DAC Polarity inverting Switch", UDA1380_MIXER, 15, 1, 0), /* DA_POL_INV */ SOC_ENUM("Noise Shaper", uda1380_sel_ns_enum), /* SEL_NS */ SOC_ENUM("Digital Mixer Signal Control", uda1380_mix_enum), /* MIX_POS, MIX */ SOC_SINGLE("Silence Detector Switch", UDA1380_MIXER, 6, 1, 0), /* SDET_ON */ SOC_ENUM("Silence Detector Setting", uda1380_sdet_enum), /* SD_VALUE */ SOC_ENUM("Oversampling Input", uda1380_os_enum), /* OS */ SOC_DOUBLE_S8_TLV("ADC Capture Volume", UDA1380_DEC, -128, 48, dec_tlv), /* ML_DEC, MR_DEC */ /**/ SOC_SINGLE("ADC Capture Switch", UDA1380_PGA, 15, 1, 1), /* MT_ADC */ SOC_DOUBLE_TLV("Line Capture Volume", UDA1380_PGA, 0, 8, 8, 0, pga_tlv), /* PGA_GAINCTRLL, PGA_GAINCTRLR */ SOC_SINGLE("ADC Polarity inverting Switch", UDA1380_ADC, 12, 1, 0), /* ADCPOL_INV */ SOC_SINGLE_TLV("Mic Capture Volume", UDA1380_ADC, 8, 15, 0, vga_tlv), /* VGA_CTRL */ SOC_SINGLE("DC Filter Bypass Switch", UDA1380_ADC, 1, 1, 0), /* SKIP_DCFIL (before decimator) */ SOC_SINGLE("DC Filter Enable Switch", UDA1380_ADC, 0, 1, 0), /* EN_DCFIL (at output of decimator) */ SOC_SINGLE("AGC Timing", UDA1380_AGC, 8, 7, 0), /* TODO: enum, see table 62 */ SOC_SINGLE("AGC Target level", UDA1380_AGC, 2, 3, 1), /* AGC_LEVEL */ /* -5.5, -8, -11.5, -14 dBFS */ SOC_SINGLE("AGC Switch", UDA1380_AGC, 0, 1, 0), }; /* Input mux */ static const struct snd_kcontrol_new uda1380_input_mux_control = SOC_DAPM_ENUM("Route", uda1380_input_sel_enum); /* Output mux */ static const struct snd_kcontrol_new uda1380_output_mux_control = SOC_DAPM_ENUM("Route", uda1380_output_sel_enum); /* Capture mux */ static const struct snd_kcontrol_new uda1380_capture_mux_control = SOC_DAPM_ENUM("Route", uda1380_capture_sel_enum); static const struct snd_soc_dapm_widget uda1380_dapm_widgets[] = { SND_SOC_DAPM_MUX("Input Mux", SND_SOC_NOPM, 0, 0, &uda1380_input_mux_control), SND_SOC_DAPM_MUX("Output Mux", SND_SOC_NOPM, 0, 0, &uda1380_output_mux_control), SND_SOC_DAPM_MUX("Capture Mux", SND_SOC_NOPM, 0, 0, &uda1380_capture_mux_control), SND_SOC_DAPM_PGA("Left PGA", UDA1380_PM, 3, 0, NULL, 0), SND_SOC_DAPM_PGA("Right PGA", UDA1380_PM, 1, 0, NULL, 0), SND_SOC_DAPM_PGA("Mic LNA", UDA1380_PM, 4, 0, NULL, 0), SND_SOC_DAPM_ADC("Left ADC", "Left Capture", UDA1380_PM, 2, 0), SND_SOC_DAPM_ADC("Right ADC", "Right Capture", UDA1380_PM, 0, 0), SND_SOC_DAPM_INPUT("VINM"), SND_SOC_DAPM_INPUT("VINL"), SND_SOC_DAPM_INPUT("VINR"), SND_SOC_DAPM_MIXER("Analog Mixer", UDA1380_PM, 6, 0, NULL, 0), SND_SOC_DAPM_OUTPUT("VOUTLHP"), SND_SOC_DAPM_OUTPUT("VOUTRHP"), SND_SOC_DAPM_OUTPUT("VOUTL"), SND_SOC_DAPM_OUTPUT("VOUTR"), SND_SOC_DAPM_DAC("DAC", "Playback", UDA1380_PM, 10, 0), SND_SOC_DAPM_PGA("HeadPhone Driver", UDA1380_PM, 13, 0, NULL, 0), }; static const struct snd_soc_dapm_route uda1380_dapm_routes[] = { /* output mux */ {"HeadPhone Driver", NULL, "Output Mux"}, {"VOUTR", NULL, "Output Mux"}, {"VOUTL", NULL, "Output Mux"}, {"Analog Mixer", NULL, "VINR"}, {"Analog Mixer", NULL, "VINL"}, {"Analog Mixer", NULL, "DAC"}, {"Output Mux", "DAC", "DAC"}, {"Output Mux", "Analog Mixer", "Analog Mixer"}, /* {"DAC", "Digital Mixer", "I2S" } */ /* headphone driver */ {"VOUTLHP", NULL, "HeadPhone Driver"}, {"VOUTRHP", NULL, "HeadPhone Driver"}, /* input mux */ {"Left ADC", NULL, "Input Mux"}, {"Input Mux", "Mic", "Mic LNA"}, {"Input Mux", "Mic + Line R", "Mic LNA"}, {"Input Mux", "Line L", "Left PGA"}, {"Input Mux", "Line", "Left PGA"}, /* right input */ {"Right ADC", "Mic + Line R", "Right PGA"}, {"Right ADC", "Line", "Right PGA"}, /* inputs */ {"Mic LNA", NULL, "VINM"}, {"Left PGA", NULL, "VINL"}, {"Right PGA", NULL, "VINR"}, }; static int uda1380_set_dai_fmt_both(struct snd_soc_dai *codec_dai, unsigned int fmt) { struct snd_soc_codec *codec = codec_dai->codec; int iface; /* set up DAI based upon fmt */ iface = uda1380_read_reg_cache(codec, UDA1380_IFACE); iface &= ~(R01_SFORI_MASK | R01_SIM | R01_SFORO_MASK); switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { case SND_SOC_DAIFMT_I2S: iface |= R01_SFORI_I2S | R01_SFORO_I2S; break; case SND_SOC_DAIFMT_LSB: iface |= R01_SFORI_LSB16 | R01_SFORO_LSB16; break; case SND_SOC_DAIFMT_MSB: iface |= R01_SFORI_MSB | R01_SFORO_MSB; } /* DATAI is slave only, so in single-link mode, this has to be slave */ if ((fmt & SND_SOC_DAIFMT_MASTER_MASK) != SND_SOC_DAIFMT_CBS_CFS) return -EINVAL; uda1380_write_reg_cache(codec, UDA1380_IFACE, iface); return 0; } static int uda1380_set_dai_fmt_playback(struct snd_soc_dai *codec_dai, unsigned int fmt) { struct snd_soc_codec *codec = codec_dai->codec; int iface; /* set up DAI based upon fmt */ iface = uda1380_read_reg_cache(codec, UDA1380_IFACE); iface &= ~R01_SFORI_MASK; switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { case SND_SOC_DAIFMT_I2S: iface |= R01_SFORI_I2S; break; case SND_SOC_DAIFMT_LSB: iface |= R01_SFORI_LSB16; break; case SND_SOC_DAIFMT_MSB: iface |= R01_SFORI_MSB; } /* DATAI is slave only, so this has to be slave */ if ((fmt & SND_SOC_DAIFMT_MASTER_MASK) != SND_SOC_DAIFMT_CBS_CFS) return -EINVAL; uda1380_write(codec, UDA1380_IFACE, iface); return 0; } static int uda1380_set_dai_fmt_capture(struct snd_soc_dai *codec_dai, unsigned int fmt) { struct snd_soc_codec *codec = codec_dai->codec; int iface; /* set up DAI based upon fmt */ iface = uda1380_read_reg_cache(codec, UDA1380_IFACE); iface &= ~(R01_SIM | R01_SFORO_MASK); switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { case SND_SOC_DAIFMT_I2S: iface |= R01_SFORO_I2S; break; case SND_SOC_DAIFMT_LSB: iface |= R01_SFORO_LSB16; break; case SND_SOC_DAIFMT_MSB: iface |= R01_SFORO_MSB; } if ((fmt & SND_SOC_DAIFMT_MASTER_MASK) == SND_SOC_DAIFMT_CBM_CFM) iface |= R01_SIM; uda1380_write(codec, UDA1380_IFACE, iface); return 0; } static int uda1380_trigger(struct snd_pcm_substream *substream, int cmd, struct snd_soc_dai *dai) { struct snd_soc_codec *codec = dai->codec; struct uda1380_priv *uda1380 = snd_soc_codec_get_drvdata(codec); int mixer = uda1380_read_reg_cache(codec, UDA1380_MIXER); switch (cmd) { case SNDRV_PCM_TRIGGER_START: case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: uda1380_write_reg_cache(codec, UDA1380_MIXER, mixer & ~R14_SILENCE); schedule_work(&uda1380->work); break; case SNDRV_PCM_TRIGGER_STOP: case SNDRV_PCM_TRIGGER_PAUSE_PUSH: uda1380_write_reg_cache(codec, UDA1380_MIXER, mixer | R14_SILENCE); schedule_work(&uda1380->work); break; } return 0; } static int uda1380_pcm_hw_params(struct snd_pcm_substream *substream, struct snd_pcm_hw_params *params, struct snd_soc_dai *dai) { struct snd_soc_codec *codec = dai->codec; u16 clk = uda1380_read_reg_cache(codec, UDA1380_CLK); /* set WSPLL power and divider if running from this clock */ if (clk & R00_DAC_CLK) { int rate = params_rate(params); u16 pm = uda1380_read_reg_cache(codec, UDA1380_PM); clk &= ~0x3; /* clear SEL_LOOP_DIV */ switch (rate) { case 6250 ... 12500: clk |= 0x0; break; case 12501 ... 25000: clk |= 0x1; break; case 25001 ... 50000: clk |= 0x2; break; case 50001 ... 100000: clk |= 0x3; break; } uda1380_write(codec, UDA1380_PM, R02_PON_PLL | pm); } if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) clk |= R00_EN_DAC | R00_EN_INT; else clk |= R00_EN_ADC | R00_EN_DEC; uda1380_write(codec, UDA1380_CLK, clk); return 0; } static void uda1380_pcm_shutdown(struct snd_pcm_substream *substream, struct snd_soc_dai *dai) { struct snd_soc_codec *codec = dai->codec; u16 clk = uda1380_read_reg_cache(codec, UDA1380_CLK); /* shut down WSPLL power if running from this clock */ if (clk & R00_DAC_CLK) { u16 pm = uda1380_read_reg_cache(codec, UDA1380_PM); uda1380_write(codec, UDA1380_PM, ~R02_PON_PLL & pm); } if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) clk &= ~(R00_EN_DAC | R00_EN_INT); else clk &= ~(R00_EN_ADC | R00_EN_DEC); uda1380_write(codec, UDA1380_CLK, clk); } static int uda1380_set_bias_level(struct snd_soc_codec *codec, enum snd_soc_bias_level level) { int pm = uda1380_read_reg_cache(codec, UDA1380_PM); int reg; struct uda1380_platform_data *pdata = codec->dev->platform_data; switch (level) { case SND_SOC_BIAS_ON: case SND_SOC_BIAS_PREPARE: /* ADC, DAC on */ uda1380_write(codec, UDA1380_PM, R02_PON_BIAS | pm); break; case SND_SOC_BIAS_STANDBY: if (snd_soc_codec_get_bias_level(codec) == SND_SOC_BIAS_OFF) { if (gpio_is_valid(pdata->gpio_power)) { gpio_set_value(pdata->gpio_power, 1); mdelay(1); uda1380_reset(codec); } uda1380_sync_cache(codec); } uda1380_write(codec, UDA1380_PM, 0x0); break; case SND_SOC_BIAS_OFF: if (!gpio_is_valid(pdata->gpio_power)) break; gpio_set_value(pdata->gpio_power, 0); /* Mark mixer regs cache dirty to sync them with * codec regs on power on. */ for (reg = UDA1380_MVOL; reg < UDA1380_CACHEREGNUM; reg++) set_bit(reg - 0x10, &uda1380_cache_dirty); } return 0; } #define UDA1380_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) static const struct snd_soc_dai_ops uda1380_dai_ops = { .hw_params = uda1380_pcm_hw_params, .shutdown = uda1380_pcm_shutdown, .trigger = uda1380_trigger, .set_fmt = uda1380_set_dai_fmt_both, }; static const struct snd_soc_dai_ops uda1380_dai_ops_playback = { .hw_params = uda1380_pcm_hw_params, .shutdown = uda1380_pcm_shutdown, .trigger = uda1380_trigger, .set_fmt = uda1380_set_dai_fmt_playback, }; static const struct snd_soc_dai_ops uda1380_dai_ops_capture = { .hw_params = uda1380_pcm_hw_params, .shutdown = uda1380_pcm_shutdown, .trigger = uda1380_trigger, .set_fmt = uda1380_set_dai_fmt_capture, }; static struct snd_soc_dai_driver uda1380_dai[] = { { .name = "uda1380-hifi", .playback = { .stream_name = "Playback", .channels_min = 1, .channels_max = 2, .rates = UDA1380_RATES, .formats = SNDRV_PCM_FMTBIT_S16_LE,}, .capture = { .stream_name = "Capture", .channels_min = 1, .channels_max = 2, .rates = UDA1380_RATES, .formats = SNDRV_PCM_FMTBIT_S16_LE,}, .ops = &uda1380_dai_ops, }, { /* playback only - dual interface */ .name = "uda1380-hifi-playback", .playback = { .stream_name = "Playback", .channels_min = 1, .channels_max = 2, .rates = UDA1380_RATES, .formats = SNDRV_PCM_FMTBIT_S16_LE, }, .ops = &uda1380_dai_ops_playback, }, { /* capture only - dual interface*/ .name = "uda1380-hifi-capture", .capture = { .stream_name = "Capture", .channels_min = 1, .channels_max = 2, .rates = UDA1380_RATES, .formats = SNDRV_PCM_FMTBIT_S16_LE, }, .ops = &uda1380_dai_ops_capture, }, }; static int uda1380_probe(struct snd_soc_codec *codec) { struct uda1380_platform_data *pdata =codec->dev->platform_data; struct uda1380_priv *uda1380 = snd_soc_codec_get_drvdata(codec); int ret; uda1380->codec = codec; codec->hw_write = (hw_write_t)i2c_master_send; codec->control_data = uda1380->control_data; if (!pdata) return -EINVAL; if (gpio_is_valid(pdata->gpio_reset)) { ret = gpio_request_one(pdata->gpio_reset, GPIOF_OUT_INIT_LOW, "uda1380 reset"); if (ret) goto err_out; } if (gpio_is_valid(pdata->gpio_power)) { ret = gpio_request_one(pdata->gpio_power, GPIOF_OUT_INIT_LOW, "uda1380 power"); if (ret) goto err_free_gpio; } else { ret = uda1380_reset(codec); if (ret) goto err_free_gpio; } INIT_WORK(&uda1380->work, uda1380_flush_work); /* set clock input */ switch (pdata->dac_clk) { case UDA1380_DAC_CLK_SYSCLK: uda1380_write_reg_cache(codec, UDA1380_CLK, 0); break; case UDA1380_DAC_CLK_WSPLL: uda1380_write_reg_cache(codec, UDA1380_CLK, R00_DAC_CLK); break; } return 0; err_free_gpio: if (gpio_is_valid(pdata->gpio_reset)) gpio_free(pdata->gpio_reset); err_out: return ret; } /* power down chip */ static int uda1380_remove(struct snd_soc_codec *codec) { struct uda1380_platform_data *pdata =codec->dev->platform_data; gpio_free(pdata->gpio_reset); gpio_free(pdata->gpio_power); return 0; } static struct snd_soc_codec_driver soc_codec_dev_uda1380 = { .probe = uda1380_probe, .remove = uda1380_remove, .read = uda1380_read_reg_cache, .write = uda1380_write, .set_bias_level = uda1380_set_bias_level, .suspend_bias_off = true, .reg_cache_size = ARRAY_SIZE(uda1380_reg), .reg_word_size = sizeof(u16), .reg_cache_default = uda1380_reg, .reg_cache_step = 1, .component_driver = { .controls = uda1380_snd_controls, .num_controls = ARRAY_SIZE(uda1380_snd_controls), .dapm_widgets = uda1380_dapm_widgets, .num_dapm_widgets = ARRAY_SIZE(uda1380_dapm_widgets), .dapm_routes = uda1380_dapm_routes, .num_dapm_routes = ARRAY_SIZE(uda1380_dapm_routes), }, }; static int uda1380_i2c_probe(struct i2c_client *i2c, const struct i2c_device_id *id) { struct uda1380_priv *uda1380; int ret; uda1380 = devm_kzalloc(&i2c->dev, sizeof(struct uda1380_priv), GFP_KERNEL); if (uda1380 == NULL) return -ENOMEM; i2c_set_clientdata(i2c, uda1380); uda1380->control_data = i2c; ret = snd_soc_register_codec(&i2c->dev, &soc_codec_dev_uda1380, uda1380_dai, ARRAY_SIZE(uda1380_dai)); return ret; } static int uda1380_i2c_remove(struct i2c_client *i2c) { snd_soc_unregister_codec(&i2c->dev); return 0; } static const struct i2c_device_id uda1380_i2c_id[] = { { "uda1380", 0 }, { } }; MODULE_DEVICE_TABLE(i2c, uda1380_i2c_id); static struct i2c_driver uda1380_i2c_driver = { .driver = { .name = "uda1380-codec", }, .probe = uda1380_i2c_probe, .remove = uda1380_i2c_remove, .id_table = uda1380_i2c_id, }; module_i2c_driver(uda1380_i2c_driver); MODULE_AUTHOR("Giorgio Padrin"); MODULE_DESCRIPTION("Audio support for codec Philips UDA1380"); MODULE_LICENSE("GPL");