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Diffstat (limited to 'sound/soc/codecs/uda1380.c')
| -rw-r--r-- | sound/soc/codecs/uda1380.c | 886 |
1 files changed, 886 insertions, 0 deletions
diff --git a/sound/soc/codecs/uda1380.c b/sound/soc/codecs/uda1380.c new file mode 100644 index 00000000..c5ca8cfe --- /dev/null +++ b/sound/soc/codecs/uda1380.c @@ -0,0 +1,886 @@ +/* + * 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 <philipp.zabel@gmail.com> + * + * Modified by Richard Purdie <richard@openedhand.com> to fit into SoC + * codec model. + * + * Copyright (c) 2005 Giorgio Padrin <giorgio@mandarinlogiq.org> + * Copyright 2005 Openedhand Ltd. + */ + +#include <linux/module.h> +#include <linux/init.h> +#include <linux/types.h> +#include <linux/slab.h> +#include <linux/errno.h> +#include <linux/gpio.h> +#include <linux/delay.h> +#include <linux/i2c.h> +#include <linux/workqueue.h> +#include <sound/core.h> +#include <sound/control.h> +#include <sound/initval.h> +#include <sound/soc.h> +#include <sound/tlv.h> +#include <sound/uda1380.h> + +#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 (!codec->active && (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, 5, uda1380_deemp), + SOC_ENUM_SINGLE(UDA1380_DEEMP, 0, 5, uda1380_deemp), +}; +static const struct soc_enum uda1380_input_sel_enum = + SOC_ENUM_SINGLE(UDA1380_ADC, 2, 4, uda1380_input_sel); /* SEL_MIC, SEL_LNA */ +static const struct soc_enum uda1380_output_sel_enum = + SOC_ENUM_SINGLE(UDA1380_PM, 7, 2, uda1380_output_sel); /* R02_EN_AVC */ +static const struct soc_enum uda1380_spf_enum = + SOC_ENUM_SINGLE(UDA1380_MODE, 14, 4, uda1380_spf_mode); /* M */ +static const struct soc_enum uda1380_capture_sel_enum = + SOC_ENUM_SINGLE(UDA1380_IFACE, 6, 2, uda1380_capture_sel); /* SEL_SOURCE */ +static const struct soc_enum uda1380_sel_ns_enum = + SOC_ENUM_SINGLE(UDA1380_MIXER, 14, 2, uda1380_sel_ns); /* SEL_NS */ +static const struct soc_enum uda1380_mix_enum = + SOC_ENUM_SINGLE(UDA1380_MIXER, 12, 4, uda1380_mix_control); /* MIX, MIX_POS */ +static const struct soc_enum uda1380_sdet_enum = + SOC_ENUM_SINGLE(UDA1380_MIXER, 4, 4, uda1380_sdet_setting); /* SD_VALUE */ +static const struct soc_enum uda1380_os_enum = + SOC_ENUM_SINGLE(UDA1380_MIXER, 0, 3, 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 unsigned int mvol_tlv[] = { + TLV_DB_RANGE_HEAD(3), + 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 unsigned int vc_tlv[] = { + TLV_DB_RANGE_HEAD(4), + 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 audio_map[] = { + + /* 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_add_widgets(struct snd_soc_codec *codec) +{ + struct snd_soc_dapm_context *dapm = &codec->dapm; + + snd_soc_dapm_new_controls(dapm, uda1380_dapm_widgets, + ARRAY_SIZE(uda1380_dapm_widgets)); + snd_soc_dapm_add_routes(dapm, audio_map, ARRAY_SIZE(audio_map)); + + return 0; +} + +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(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_pcm_runtime *rtd = substream->private_data; + struct snd_soc_codec *codec = rtd->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_pcm_runtime *rtd = substream->private_data; + struct snd_soc_codec *codec = rtd->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_pcm_runtime *rtd = substream->private_data; + struct snd_soc_codec *codec = rtd->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; + + if (codec->dapm.bias_level == level) + return 0; + + 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 (codec->dapm.bias_level == 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); + } + codec->dapm.bias_level = level; + 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 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 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 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_suspend(struct snd_soc_codec *codec, pm_message_t state) +{ + uda1380_set_bias_level(codec, SND_SOC_BIAS_OFF); + return 0; +} + +static int uda1380_resume(struct snd_soc_codec *codec) +{ + uda1380_set_bias_level(codec, SND_SOC_BIAS_STANDBY); + return 0; +} + +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(pdata->gpio_reset, "uda1380 reset"); + if (ret) + goto err_out; + ret = gpio_direction_output(pdata->gpio_reset, 0); + if (ret) + goto err_gpio_reset_conf; + } + + if (gpio_is_valid(pdata->gpio_power)) { + ret = gpio_request(pdata->gpio_power, "uda1380 power"); + if (ret) + goto err_gpio; + ret = gpio_direction_output(pdata->gpio_power, 0); + if (ret) + goto err_gpio_power_conf; + } else { + ret = uda1380_reset(codec); + if (ret) { + dev_err(codec->dev, "Failed to issue reset\n"); + goto err_reset; + } + } + + INIT_WORK(&uda1380->work, uda1380_flush_work); + + /* power on device */ + uda1380_set_bias_level(codec, SND_SOC_BIAS_STANDBY); + /* 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; + } + + snd_soc_add_controls(codec, uda1380_snd_controls, + ARRAY_SIZE(uda1380_snd_controls)); + uda1380_add_widgets(codec); + + return 0; + +err_reset: +err_gpio_power_conf: + if (gpio_is_valid(pdata->gpio_power)) + gpio_free(pdata->gpio_power); + +err_gpio_reset_conf: +err_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; + + uda1380_set_bias_level(codec, SND_SOC_BIAS_OFF); + + 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, + .suspend = uda1380_suspend, + .resume = uda1380_resume, + .read = uda1380_read_reg_cache, + .write = uda1380_write, + .set_bias_level = uda1380_set_bias_level, + .reg_cache_size = ARRAY_SIZE(uda1380_reg), + .reg_word_size = sizeof(u16), + .reg_cache_default = uda1380_reg, + .reg_cache_step = 1, +}; + +#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) +static __devinit int uda1380_i2c_probe(struct i2c_client *i2c, + const struct i2c_device_id *id) +{ + struct uda1380_priv *uda1380; + int ret; + + uda1380 = kzalloc(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)); + if (ret < 0) + kfree(uda1380); + return ret; +} + +static int __devexit uda1380_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 uda1380_i2c_id[] = { + { "uda1380", 0 }, + { } +}; +MODULE_DEVICE_TABLE(i2c, uda1380_i2c_id); + +static struct i2c_driver uda1380_i2c_driver = { + .driver = { + .name = "uda1380-codec", + .owner = THIS_MODULE, + }, + .probe = uda1380_i2c_probe, + .remove = __devexit_p(uda1380_i2c_remove), + .id_table = uda1380_i2c_id, +}; +#endif + +static int __init uda1380_modinit(void) +{ + int ret; +#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) + ret = i2c_add_driver(&uda1380_i2c_driver); + if (ret != 0) + pr_err("Failed to register UDA1380 I2C driver: %d\n", ret); +#endif + return 0; +} +module_init(uda1380_modinit); + +static void __exit uda1380_exit(void) +{ +#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) + i2c_del_driver(&uda1380_i2c_driver); +#endif +} +module_exit(uda1380_exit); + +MODULE_AUTHOR("Giorgio Padrin"); +MODULE_DESCRIPTION("Audio support for codec Philips UDA1380"); +MODULE_LICENSE("GPL"); |