/* * sn95031.c - TI sn95031 Codec driver * * Copyright (C) 2010 Intel Corp * Author: Vinod Koul * Author: Harsha Priya * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ * * 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; version 2 of the License. * * This program is distributed in the hope that it will be useful, but * WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * General Public License for more details. * * You should have received a copy of the GNU General Public License along * with this program; if not, write to the Free Software Foundation, Inc., * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. * * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ * * */ #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt #include #include #include #include #include #include #include #include #include #include #include "sn95031.h" #define SN95031_RATES (SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_44100) #define SN95031_FORMATS (SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S16_LE) /* adc helper functions */ /* enables mic bias voltage */ static void sn95031_enable_mic_bias(struct snd_soc_codec *codec) { snd_soc_write(codec, SN95031_VAUD, BIT(2)|BIT(1)|BIT(0)); snd_soc_update_bits(codec, SN95031_MICBIAS, BIT(2), BIT(2)); } /* Enable/Disable the ADC depending on the argument */ static void configure_adc(struct snd_soc_codec *sn95031_codec, int val) { int value = snd_soc_read(sn95031_codec, SN95031_ADC1CNTL1); if (val) { /* Enable and start the ADC */ value |= (SN95031_ADC_ENBL | SN95031_ADC_START); value &= (~SN95031_ADC_NO_LOOP); } else { /* Just stop the ADC */ value &= (~SN95031_ADC_START); } snd_soc_write(sn95031_codec, SN95031_ADC1CNTL1, value); } /* * finds an empty channel for conversion * If the ADC is not enabled then start using 0th channel * itself. Otherwise find an empty channel by looking for a * channel in which the stopbit is set to 1. returns the index * of the first free channel if succeeds or an error code. * * Context: can sleep * */ static int find_free_channel(struct snd_soc_codec *sn95031_codec) { int ret = 0, i, value; /* check whether ADC is enabled */ value = snd_soc_read(sn95031_codec, SN95031_ADC1CNTL1); if ((value & SN95031_ADC_ENBL) == 0) return 0; /* ADC is already enabled; Looking for an empty channel */ for (i = 0; i < SN95031_ADC_CHANLS_MAX; i++) { value = snd_soc_read(sn95031_codec, SN95031_ADC_CHNL_START_ADDR + i); if (value & SN95031_STOPBIT_MASK) { ret = i; break; } } return (ret > SN95031_ADC_LOOP_MAX) ? (-EINVAL) : ret; } /* Initialize the ADC for reading micbias values. Can sleep. */ static int sn95031_initialize_adc(struct snd_soc_codec *sn95031_codec) { int base_addr, chnl_addr; int value; static int channel_index; /* Index of the first channel in which the stop bit is set */ channel_index = find_free_channel(sn95031_codec); if (channel_index < 0) { pr_err("No free ADC channels"); return channel_index; } base_addr = SN95031_ADC_CHNL_START_ADDR + channel_index; if (!(channel_index == 0 || channel_index == SN95031_ADC_LOOP_MAX)) { /* Reset stop bit for channels other than 0 and 12 */ value = snd_soc_read(sn95031_codec, base_addr); /* Set the stop bit to zero */ snd_soc_write(sn95031_codec, base_addr, value & 0xEF); /* Index of the first free channel */ base_addr++; channel_index++; } /* Since this is the last channel, set the stop bit to 1 by ORing the DIE_SENSOR_CODE with 0x10 */ snd_soc_write(sn95031_codec, base_addr, SN95031_AUDIO_DETECT_CODE | 0x10); chnl_addr = SN95031_ADC_DATA_START_ADDR + 2 * channel_index; pr_debug("mid_initialize : %x", chnl_addr); configure_adc(sn95031_codec, 1); return chnl_addr; } /* reads the ADC registers and gets the mic bias value in mV. */ static unsigned int sn95031_get_mic_bias(struct snd_soc_codec *codec) { u16 adc_adr = sn95031_initialize_adc(codec); u16 adc_val1, adc_val2; unsigned int mic_bias; sn95031_enable_mic_bias(codec); /* Enable the sound card for conversion before reading */ snd_soc_write(codec, SN95031_ADC1CNTL3, 0x05); /* Re-toggle the RRDATARD bit */ snd_soc_write(codec, SN95031_ADC1CNTL3, 0x04); /* Read the higher bits of data */ msleep(1000); adc_val1 = snd_soc_read(codec, adc_adr); adc_adr++; adc_val2 = snd_soc_read(codec, adc_adr); /* Adding lower two bits to the higher bits */ mic_bias = (adc_val1 << 2) + (adc_val2 & 3); mic_bias = (mic_bias * SN95031_ADC_ONE_LSB_MULTIPLIER) / 1000; pr_debug("mic bias = %dmV\n", mic_bias); return mic_bias; } EXPORT_SYMBOL_GPL(sn95031_get_mic_bias); /*end - adc helper functions */ static inline unsigned int sn95031_read(struct snd_soc_codec *codec, unsigned int reg) { u8 value = 0; int ret; ret = intel_scu_ipc_ioread8(reg, &value); if (ret) pr_err("read of %x failed, err %d\n", reg, ret); return value; } static inline int sn95031_write(struct snd_soc_codec *codec, unsigned int reg, unsigned int value) { int ret; ret = intel_scu_ipc_iowrite8(reg, value); if (ret) pr_err("write of %x failed, err %d\n", reg, ret); return ret; } static int sn95031_set_vaud_bias(struct snd_soc_codec *codec, enum snd_soc_bias_level level) { switch (level) { case SND_SOC_BIAS_ON: break; case SND_SOC_BIAS_PREPARE: if (codec->dapm.bias_level == SND_SOC_BIAS_STANDBY) { pr_debug("vaud_bias powering up pll\n"); /* power up the pll */ snd_soc_write(codec, SN95031_AUDPLLCTRL, BIT(5)); /* enable pcm 2 */ snd_soc_update_bits(codec, SN95031_PCM2C2, BIT(0), BIT(0)); } break; case SND_SOC_BIAS_STANDBY: if (codec->dapm.bias_level == SND_SOC_BIAS_OFF) { pr_debug("vaud_bias power up rail\n"); /* power up the rail */ snd_soc_write(codec, SN95031_VAUD, BIT(2)|BIT(1)|BIT(0)); msleep(1); } else if (codec->dapm.bias_level == SND_SOC_BIAS_PREPARE) { /* turn off pcm */ pr_debug("vaud_bias power dn pcm\n"); snd_soc_update_bits(codec, SN95031_PCM2C2, BIT(0), 0); snd_soc_write(codec, SN95031_AUDPLLCTRL, 0); } break; case SND_SOC_BIAS_OFF: pr_debug("vaud_bias _OFF doing rail shutdown\n"); snd_soc_write(codec, SN95031_VAUD, BIT(3)); break; } codec->dapm.bias_level = level; return 0; } static int sn95031_vhs_event(struct snd_soc_dapm_widget *w, struct snd_kcontrol *kcontrol, int event) { if (SND_SOC_DAPM_EVENT_ON(event)) { pr_debug("VHS SND_SOC_DAPM_EVENT_ON doing rail startup now\n"); /* power up the rail */ snd_soc_write(w->codec, SN95031_VHSP, 0x3D); snd_soc_write(w->codec, SN95031_VHSN, 0x3F); msleep(1); } else if (SND_SOC_DAPM_EVENT_OFF(event)) { pr_debug("VHS SND_SOC_DAPM_EVENT_OFF doing rail shutdown\n"); snd_soc_write(w->codec, SN95031_VHSP, 0xC4); snd_soc_write(w->codec, SN95031_VHSN, 0x04); } return 0; } static int sn95031_vihf_event(struct snd_soc_dapm_widget *w, struct snd_kcontrol *kcontrol, int event) { if (SND_SOC_DAPM_EVENT_ON(event)) { pr_debug("VIHF SND_SOC_DAPM_EVENT_ON doing rail startup now\n"); /* power up the rail */ snd_soc_write(w->codec, SN95031_VIHF, 0x27); msleep(1); } else if (SND_SOC_DAPM_EVENT_OFF(event)) { pr_debug("VIHF SND_SOC_DAPM_EVENT_OFF doing rail shutdown\n"); snd_soc_write(w->codec, SN95031_VIHF, 0x24); } return 0; } static int sn95031_dmic12_event(struct snd_soc_dapm_widget *w, struct snd_kcontrol *k, int event) { unsigned int ldo = 0, clk_dir = 0, data_dir = 0; if (SND_SOC_DAPM_EVENT_ON(event)) { ldo = BIT(5)|BIT(4); clk_dir = BIT(0); data_dir = BIT(7); } /* program DMIC LDO, clock and set clock */ snd_soc_update_bits(w->codec, SN95031_MICBIAS, BIT(5)|BIT(4), ldo); snd_soc_update_bits(w->codec, SN95031_DMICBUF0123, BIT(0), clk_dir); snd_soc_update_bits(w->codec, SN95031_DMICBUF0123, BIT(7), data_dir); return 0; } static int sn95031_dmic34_event(struct snd_soc_dapm_widget *w, struct snd_kcontrol *k, int event) { unsigned int ldo = 0, clk_dir = 0, data_dir = 0; if (SND_SOC_DAPM_EVENT_ON(event)) { ldo = BIT(5)|BIT(4); clk_dir = BIT(2); data_dir = BIT(1); } /* program DMIC LDO, clock and set clock */ snd_soc_update_bits(w->codec, SN95031_MICBIAS, BIT(5)|BIT(4), ldo); snd_soc_update_bits(w->codec, SN95031_DMICBUF0123, BIT(2), clk_dir); snd_soc_update_bits(w->codec, SN95031_DMICBUF45, BIT(1), data_dir); return 0; } static int sn95031_dmic56_event(struct snd_soc_dapm_widget *w, struct snd_kcontrol *k, int event) { unsigned int ldo = 0; if (SND_SOC_DAPM_EVENT_ON(event)) ldo = BIT(7)|BIT(6); /* program DMIC LDO */ snd_soc_update_bits(w->codec, SN95031_MICBIAS, BIT(7)|BIT(6), ldo); return 0; } /* mux controls */ static const char *sn95031_mic_texts[] = { "AMIC", "LineIn" }; static const struct soc_enum sn95031_micl_enum = SOC_ENUM_SINGLE(SN95031_ADCCONFIG, 1, 2, sn95031_mic_texts); static const struct snd_kcontrol_new sn95031_micl_mux_control = SOC_DAPM_ENUM("Route", sn95031_micl_enum); static const struct soc_enum sn95031_micr_enum = SOC_ENUM_SINGLE(SN95031_ADCCONFIG, 3, 2, sn95031_mic_texts); static const struct snd_kcontrol_new sn95031_micr_mux_control = SOC_DAPM_ENUM("Route", sn95031_micr_enum); static const char *sn95031_input_texts[] = { "DMIC1", "DMIC2", "DMIC3", "DMIC4", "DMIC5", "DMIC6", "ADC Left", "ADC Right" }; static const struct soc_enum sn95031_input1_enum = SOC_ENUM_SINGLE(SN95031_AUDIOMUX12, 0, 8, sn95031_input_texts); static const struct snd_kcontrol_new sn95031_input1_mux_control = SOC_DAPM_ENUM("Route", sn95031_input1_enum); static const struct soc_enum sn95031_input2_enum = SOC_ENUM_SINGLE(SN95031_AUDIOMUX12, 4, 8, sn95031_input_texts); static const struct snd_kcontrol_new sn95031_input2_mux_control = SOC_DAPM_ENUM("Route", sn95031_input2_enum); static const struct soc_enum sn95031_input3_enum = SOC_ENUM_SINGLE(SN95031_AUDIOMUX34, 0, 8, sn95031_input_texts); static const struct snd_kcontrol_new sn95031_input3_mux_control = SOC_DAPM_ENUM("Route", sn95031_input3_enum); static const struct soc_enum sn95031_input4_enum = SOC_ENUM_SINGLE(SN95031_AUDIOMUX34, 4, 8, sn95031_input_texts); static const struct snd_kcontrol_new sn95031_input4_mux_control = SOC_DAPM_ENUM("Route", sn95031_input4_enum); /* capture path controls */ static const char *sn95031_micmode_text[] = {"Single Ended", "Differential"}; /* 0dB to 30dB in 10dB steps */ static const DECLARE_TLV_DB_SCALE(mic_tlv, 0, 10, 0); static const struct soc_enum sn95031_micmode1_enum = SOC_ENUM_SINGLE(SN95031_MICAMP1, 1, 2, sn95031_micmode_text); static const struct soc_enum sn95031_micmode2_enum = SOC_ENUM_SINGLE(SN95031_MICAMP2, 1, 2, sn95031_micmode_text); static const char *sn95031_dmic_cfg_text[] = {"GPO", "DMIC"}; static const struct soc_enum sn95031_dmic12_cfg_enum = SOC_ENUM_SINGLE(SN95031_DMICMUX, 0, 2, sn95031_dmic_cfg_text); static const struct soc_enum sn95031_dmic34_cfg_enum = SOC_ENUM_SINGLE(SN95031_DMICMUX, 1, 2, sn95031_dmic_cfg_text); static const struct soc_enum sn95031_dmic56_cfg_enum = SOC_ENUM_SINGLE(SN95031_DMICMUX, 2, 2, sn95031_dmic_cfg_text); static const struct snd_kcontrol_new sn95031_snd_controls[] = { SOC_ENUM("Mic1Mode Capture Route", sn95031_micmode1_enum), SOC_ENUM("Mic2Mode Capture Route", sn95031_micmode2_enum), SOC_ENUM("DMIC12 Capture Route", sn95031_dmic12_cfg_enum), SOC_ENUM("DMIC34 Capture Route", sn95031_dmic34_cfg_enum), SOC_ENUM("DMIC56 Capture Route", sn95031_dmic56_cfg_enum), SOC_SINGLE_TLV("Mic1 Capture Volume", SN95031_MICAMP1, 2, 4, 0, mic_tlv), SOC_SINGLE_TLV("Mic2 Capture Volume", SN95031_MICAMP2, 2, 4, 0, mic_tlv), }; /* DAPM widgets */ static const struct snd_soc_dapm_widget sn95031_dapm_widgets[] = { /* all end points mic, hs etc */ SND_SOC_DAPM_OUTPUT("HPOUTL"), SND_SOC_DAPM_OUTPUT("HPOUTR"), SND_SOC_DAPM_OUTPUT("EPOUT"), SND_SOC_DAPM_OUTPUT("IHFOUTL"), SND_SOC_DAPM_OUTPUT("IHFOUTR"), SND_SOC_DAPM_OUTPUT("LINEOUTL"), SND_SOC_DAPM_OUTPUT("LINEOUTR"), SND_SOC_DAPM_OUTPUT("VIB1OUT"), SND_SOC_DAPM_OUTPUT("VIB2OUT"), SND_SOC_DAPM_INPUT("AMIC1"), /* headset mic */ SND_SOC_DAPM_INPUT("AMIC2"), SND_SOC_DAPM_INPUT("DMIC1"), SND_SOC_DAPM_INPUT("DMIC2"), SND_SOC_DAPM_INPUT("DMIC3"), SND_SOC_DAPM_INPUT("DMIC4"), SND_SOC_DAPM_INPUT("DMIC5"), SND_SOC_DAPM_INPUT("DMIC6"), SND_SOC_DAPM_INPUT("LINEINL"), SND_SOC_DAPM_INPUT("LINEINR"), SND_SOC_DAPM_MICBIAS("AMIC1Bias", SN95031_MICBIAS, 2, 0), SND_SOC_DAPM_MICBIAS("AMIC2Bias", SN95031_MICBIAS, 3, 0), SND_SOC_DAPM_MICBIAS("DMIC12Bias", SN95031_DMICMUX, 3, 0), SND_SOC_DAPM_MICBIAS("DMIC34Bias", SN95031_DMICMUX, 4, 0), SND_SOC_DAPM_MICBIAS("DMIC56Bias", SN95031_DMICMUX, 5, 0), SND_SOC_DAPM_SUPPLY("DMIC12supply", SN95031_DMICLK, 0, 0, sn95031_dmic12_event, SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD), SND_SOC_DAPM_SUPPLY("DMIC34supply", SN95031_DMICLK, 1, 0, sn95031_dmic34_event, SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD), SND_SOC_DAPM_SUPPLY("DMIC56supply", SN95031_DMICLK, 2, 0, sn95031_dmic56_event, SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD), SND_SOC_DAPM_AIF_OUT("PCM_Out", "Capture", 0, SND_SOC_NOPM, 0, 0), SND_SOC_DAPM_SUPPLY("Headset Rail", SND_SOC_NOPM, 0, 0, sn95031_vhs_event, SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD), SND_SOC_DAPM_SUPPLY("Speaker Rail", SND_SOC_NOPM, 0, 0, sn95031_vihf_event, SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD), /* playback path driver enables */ SND_SOC_DAPM_PGA("Headset Left Playback", SN95031_DRIVEREN, 0, 0, NULL, 0), SND_SOC_DAPM_PGA("Headset Right Playback", SN95031_DRIVEREN, 1, 0, NULL, 0), SND_SOC_DAPM_PGA("Speaker Left Playback", SN95031_DRIVEREN, 2, 0, NULL, 0), SND_SOC_DAPM_PGA("Speaker Right Playback", SN95031_DRIVEREN, 3, 0, NULL, 0), SND_SOC_DAPM_PGA("Vibra1 Playback", SN95031_DRIVEREN, 4, 0, NULL, 0), SND_SOC_DAPM_PGA("Vibra2 Playback", SN95031_DRIVEREN, 5, 0, NULL, 0), SND_SOC_DAPM_PGA("Earpiece Playback", SN95031_DRIVEREN, 6, 0, NULL, 0), SND_SOC_DAPM_PGA("Lineout Left Playback", SN95031_LOCTL, 0, 0, NULL, 0), SND_SOC_DAPM_PGA("Lineout Right Playback", SN95031_LOCTL, 4, 0, NULL, 0), /* playback path filter enable */ SND_SOC_DAPM_PGA("Headset Left Filter", SN95031_HSEPRXCTRL, 4, 0, NULL, 0), SND_SOC_DAPM_PGA("Headset Right Filter", SN95031_HSEPRXCTRL, 5, 0, NULL, 0), SND_SOC_DAPM_PGA("Speaker Left Filter", SN95031_IHFRXCTRL, 0, 0, NULL, 0), SND_SOC_DAPM_PGA("Speaker Right Filter", SN95031_IHFRXCTRL, 1, 0, NULL, 0), /* DACs */ SND_SOC_DAPM_DAC("HSDAC Left", "Headset", SN95031_DACCONFIG, 0, 0), SND_SOC_DAPM_DAC("HSDAC Right", "Headset", SN95031_DACCONFIG, 1, 0), SND_SOC_DAPM_DAC("IHFDAC Left", "Speaker", SN95031_DACCONFIG, 2, 0), SND_SOC_DAPM_DAC("IHFDAC Right", "Speaker", SN95031_DACCONFIG, 3, 0), SND_SOC_DAPM_DAC("Vibra1 DAC", "Vibra1", SN95031_VIB1C5, 1, 0), SND_SOC_DAPM_DAC("Vibra2 DAC", "Vibra2", SN95031_VIB2C5, 1, 0), /* capture widgets */ SND_SOC_DAPM_PGA("LineIn Enable Left", SN95031_MICAMP1, 7, 0, NULL, 0), SND_SOC_DAPM_PGA("LineIn Enable Right", SN95031_MICAMP2, 7, 0, NULL, 0), SND_SOC_DAPM_PGA("MIC1 Enable", SN95031_MICAMP1, 0, 0, NULL, 0), SND_SOC_DAPM_PGA("MIC2 Enable", SN95031_MICAMP2, 0, 0, NULL, 0), SND_SOC_DAPM_PGA("TX1 Enable", SN95031_AUDIOTXEN, 2, 0, NULL, 0), SND_SOC_DAPM_PGA("TX2 Enable", SN95031_AUDIOTXEN, 3, 0, NULL, 0), SND_SOC_DAPM_PGA("TX3 Enable", SN95031_AUDIOTXEN, 4, 0, NULL, 0), SND_SOC_DAPM_PGA("TX4 Enable", SN95031_AUDIOTXEN, 5, 0, NULL, 0), /* ADC have null stream as they will be turned ON by TX path */ SND_SOC_DAPM_ADC("ADC Left", NULL, SN95031_ADCCONFIG, 0, 0), SND_SOC_DAPM_ADC("ADC Right", NULL, SN95031_ADCCONFIG, 2, 0), SND_SOC_DAPM_MUX("Mic_InputL Capture Route", SND_SOC_NOPM, 0, 0, &sn95031_micl_mux_control), SND_SOC_DAPM_MUX("Mic_InputR Capture Route", SND_SOC_NOPM, 0, 0, &sn95031_micr_mux_control), SND_SOC_DAPM_MUX("Txpath1 Capture Route", SND_SOC_NOPM, 0, 0, &sn95031_input1_mux_control), SND_SOC_DAPM_MUX("Txpath2 Capture Route", SND_SOC_NOPM, 0, 0, &sn95031_input2_mux_control), SND_SOC_DAPM_MUX("Txpath3 Capture Route", SND_SOC_NOPM, 0, 0, &sn95031_input3_mux_control), SND_SOC_DAPM_MUX("Txpath4 Capture Route", SND_SOC_NOPM, 0, 0, &sn95031_input4_mux_control), }; static const struct snd_soc_dapm_route sn95031_audio_map[] = { /* headset and earpiece map */ { "HPOUTL", NULL, "Headset Rail"}, { "HPOUTR", NULL, "Headset Rail"}, { "HPOUTL", NULL, "Headset Left Playback" }, { "HPOUTR", NULL, "Headset Right Playback" }, { "EPOUT", NULL, "Earpiece Playback" }, { "Headset Left Playback", NULL, "Headset Left Filter"}, { "Headset Right Playback", NULL, "Headset Right Filter"}, { "Earpiece Playback", NULL, "Headset Left Filter"}, { "Headset Left Filter", NULL, "HSDAC Left"}, { "Headset Right Filter", NULL, "HSDAC Right"}, /* speaker map */ { "IHFOUTL", NULL, "Speaker Rail"}, { "IHFOUTR", NULL, "Speaker Rail"}, { "IHFOUTL", "NULL", "Speaker Left Playback"}, { "IHFOUTR", "NULL", "Speaker Right Playback"}, { "Speaker Left Playback", NULL, "Speaker Left Filter"}, { "Speaker Right Playback", NULL, "Speaker Right Filter"}, { "Speaker Left Filter", NULL, "IHFDAC Left"}, { "Speaker Right Filter", NULL, "IHFDAC Right"}, /* vibra map */ { "VIB1OUT", NULL, "Vibra1 Playback"}, { "Vibra1 Playback", NULL, "Vibra1 DAC"}, { "VIB2OUT", NULL, "Vibra2 Playback"}, { "Vibra2 Playback", NULL, "Vibra2 DAC"}, /* lineout */ { "LINEOUTL", NULL, "Lineout Left Playback"}, { "LINEOUTR", NULL, "Lineout Right Playback"}, { "Lineout Left Playback", NULL, "Headset Left Filter"}, { "Lineout Left Playback", NULL, "Speaker Left Filter"}, { "Lineout Left Playback", NULL, "Vibra1 DAC"}, { "Lineout Right Playback", NULL, "Headset Right Filter"}, { "Lineout Right Playback", NULL, "Speaker Right Filter"}, { "Lineout Right Playback", NULL, "Vibra2 DAC"}, /* Headset (AMIC1) mic */ { "AMIC1Bias", NULL, "AMIC1"}, { "MIC1 Enable", NULL, "AMIC1Bias"}, { "Mic_InputL Capture Route", "AMIC", "MIC1 Enable"}, /* AMIC2 */ { "AMIC2Bias", NULL, "AMIC2"}, { "MIC2 Enable", NULL, "AMIC2Bias"}, { "Mic_InputR Capture Route", "AMIC", "MIC2 Enable"}, /* Linein */ { "LineIn Enable Left", NULL, "LINEINL"}, { "LineIn Enable Right", NULL, "LINEINR"}, { "Mic_InputL Capture Route", "LineIn", "LineIn Enable Left"}, { "Mic_InputR Capture Route", "LineIn", "LineIn Enable Right"}, /* ADC connection */ { "ADC Left", NULL, "Mic_InputL Capture Route"}, { "ADC Right", NULL, "Mic_InputR Capture Route"}, /*DMIC connections */ { "DMIC1", NULL, "DMIC12supply"}, { "DMIC2", NULL, "DMIC12supply"}, { "DMIC3", NULL, "DMIC34supply"}, { "DMIC4", NULL, "DMIC34supply"}, { "DMIC5", NULL, "DMIC56supply"}, { "DMIC6", NULL, "DMIC56supply"}, { "DMIC12Bias", NULL, "DMIC1"}, { "DMIC12Bias", NULL, "DMIC2"}, { "DMIC34Bias", NULL, "DMIC3"}, { "DMIC34Bias", NULL, "DMIC4"}, { "DMIC56Bias", NULL, "DMIC5"}, { "DMIC56Bias", NULL, "DMIC6"}, /*TX path inputs*/ { "Txpath1 Capture Route", "ADC Left", "ADC Left"}, { "Txpath2 Capture Route", "ADC Left", "ADC Left"}, { "Txpath3 Capture Route", "ADC Left", "ADC Left"}, { "Txpath4 Capture Route", "ADC Left", "ADC Left"}, { "Txpath1 Capture Route", "ADC Right", "ADC Right"}, { "Txpath2 Capture Route", "ADC Right", "ADC Right"}, { "Txpath3 Capture Route", "ADC Right", "ADC Right"}, { "Txpath4 Capture Route", "ADC Right", "ADC Right"}, { "Txpath1 Capture Route", "DMIC1", "DMIC1"}, { "Txpath2 Capture Route", "DMIC1", "DMIC1"}, { "Txpath3 Capture Route", "DMIC1", "DMIC1"}, { "Txpath4 Capture Route", "DMIC1", "DMIC1"}, { "Txpath1 Capture Route", "DMIC2", "DMIC2"}, { "Txpath2 Capture Route", "DMIC2", "DMIC2"}, { "Txpath3 Capture Route", "DMIC2", "DMIC2"}, { "Txpath4 Capture Route", "DMIC2", "DMIC2"}, { "Txpath1 Capture Route", "DMIC3", "DMIC3"}, { "Txpath2 Capture Route", "DMIC3", "DMIC3"}, { "Txpath3 Capture Route", "DMIC3", "DMIC3"}, { "Txpath4 Capture Route", "DMIC3", "DMIC3"}, { "Txpath1 Capture Route", "DMIC4", "DMIC4"}, { "Txpath2 Capture Route", "DMIC4", "DMIC4"}, { "Txpath3 Capture Route", "DMIC4", "DMIC4"}, { "Txpath4 Capture Route", "DMIC4", "DMIC4"}, { "Txpath1 Capture Route", "DMIC5", "DMIC5"}, { "Txpath2 Capture Route", "DMIC5", "DMIC5"}, { "Txpath3 Capture Route", "DMIC5", "DMIC5"}, { "Txpath4 Capture Route", "DMIC5", "DMIC5"}, { "Txpath1 Capture Route", "DMIC6", "DMIC6"}, { "Txpath2 Capture Route", "DMIC6", "DMIC6"}, { "Txpath3 Capture Route", "DMIC6", "DMIC6"}, { "Txpath4 Capture Route", "DMIC6", "DMIC6"}, /* tx path */ { "TX1 Enable", NULL, "Txpath1 Capture Route"}, { "TX2 Enable", NULL, "Txpath2 Capture Route"}, { "TX3 Enable", NULL, "Txpath3 Capture Route"}, { "TX4 Enable", NULL, "Txpath4 Capture Route"}, { "PCM_Out", NULL, "TX1 Enable"}, { "PCM_Out", NULL, "TX2 Enable"}, { "PCM_Out", NULL, "TX3 Enable"}, { "PCM_Out", NULL, "TX4 Enable"}, }; /* speaker and headset mutes, for audio pops and clicks */ static int sn95031_pcm_hs_mute(struct snd_soc_dai *dai, int mute) { snd_soc_update_bits(dai->codec, SN95031_HSLVOLCTRL, BIT(7), (!mute << 7)); snd_soc_update_bits(dai->codec, SN95031_HSRVOLCTRL, BIT(7), (!mute << 7)); return 0; } static int sn95031_pcm_spkr_mute(struct snd_soc_dai *dai, int mute) { snd_soc_update_bits(dai->codec, SN95031_IHFLVOLCTRL, BIT(7), (!mute << 7)); snd_soc_update_bits(dai->codec, SN95031_IHFRVOLCTRL, BIT(7), (!mute << 7)); return 0; } int sn95031_pcm_hw_params(struct snd_pcm_substream *substream, struct snd_pcm_hw_params *params, struct snd_soc_dai *dai) { unsigned int format, rate; switch (params_format(params)) { case SNDRV_PCM_FORMAT_S16_LE: format = BIT(4)|BIT(5); break; case SNDRV_PCM_FORMAT_S24_LE: format = 0; break; default: return -EINVAL; } snd_soc_update_bits(dai->codec, SN95031_PCM2C2, BIT(4)|BIT(5), format); switch (params_rate(params)) { case 48000: pr_debug("RATE_48000\n"); rate = 0; break; case 44100: pr_debug("RATE_44100\n"); rate = BIT(7); break; default: pr_err("ERR rate %d\n", params_rate(params)); return -EINVAL; } snd_soc_update_bits(dai->codec, SN95031_PCM1C1, BIT(7), rate); return 0; } /* Codec DAI section */ static struct snd_soc_dai_ops sn95031_headset_dai_ops = { .digital_mute = sn95031_pcm_hs_mute, .hw_params = sn95031_pcm_hw_params, }; static struct snd_soc_dai_ops sn95031_speaker_dai_ops = { .digital_mute = sn95031_pcm_spkr_mute, .hw_params = sn95031_pcm_hw_params, }; static struct snd_soc_dai_ops sn95031_vib1_dai_ops = { .hw_params = sn95031_pcm_hw_params, }; static struct snd_soc_dai_ops sn95031_vib2_dai_ops = { .hw_params = sn95031_pcm_hw_params, }; struct snd_soc_dai_driver sn95031_dais[] = { { .name = "SN95031 Headset", .playback = { .stream_name = "Headset", .channels_min = 2, .channels_max = 2, .rates = SN95031_RATES, .formats = SN95031_FORMATS, }, .capture = { .stream_name = "Capture", .channels_min = 1, .channels_max = 5, .rates = SN95031_RATES, .formats = SN95031_FORMATS, }, .ops = &sn95031_headset_dai_ops, }, { .name = "SN95031 Speaker", .playback = { .stream_name = "Speaker", .channels_min = 2, .channels_max = 2, .rates = SN95031_RATES, .formats = SN95031_FORMATS, }, .ops = &sn95031_speaker_dai_ops, }, { .name = "SN95031 Vibra1", .playback = { .stream_name = "Vibra1", .channels_min = 1, .channels_max = 1, .rates = SN95031_RATES, .formats = SN95031_FORMATS, }, .ops = &sn95031_vib1_dai_ops, }, { .name = "SN95031 Vibra2", .playback = { .stream_name = "Vibra2", .channels_min = 1, .channels_max = 1, .rates = SN95031_RATES, .formats = SN95031_FORMATS, }, .ops = &sn95031_vib2_dai_ops, }, }; static inline void sn95031_disable_jack_btn(struct snd_soc_codec *codec) { snd_soc_write(codec, SN95031_BTNCTRL2, 0x00); } static inline void sn95031_enable_jack_btn(struct snd_soc_codec *codec) { snd_soc_write(codec, SN95031_BTNCTRL1, 0x77); snd_soc_write(codec, SN95031_BTNCTRL2, 0x01); } static int sn95031_get_headset_state(struct snd_soc_jack *mfld_jack) { int micbias = sn95031_get_mic_bias(mfld_jack->codec); int jack_type = snd_soc_jack_get_type(mfld_jack, micbias); pr_debug("jack type detected = %d\n", jack_type); if (jack_type == SND_JACK_HEADSET) sn95031_enable_jack_btn(mfld_jack->codec); return jack_type; } void sn95031_jack_detection(struct mfld_jack_data *jack_data) { unsigned int status; unsigned int mask = SND_JACK_BTN_0 | SND_JACK_BTN_1 | SND_JACK_HEADSET; pr_debug("interrupt id read in sram = 0x%x\n", jack_data->intr_id); if (jack_data->intr_id & 0x1) { pr_debug("short_push detected\n"); status = SND_JACK_HEADSET | SND_JACK_BTN_0; } else if (jack_data->intr_id & 0x2) { pr_debug("long_push detected\n"); status = SND_JACK_HEADSET | SND_JACK_BTN_1; } else if (jack_data->intr_id & 0x4) { pr_debug("headset or headphones inserted\n"); status = sn95031_get_headset_state(jack_data->mfld_jack); } else if (jack_data->intr_id & 0x8) { pr_debug("headset or headphones removed\n"); status = 0; sn95031_disable_jack_btn(jack_data->mfld_jack->codec); } else { pr_err("unidentified interrupt\n"); return; } snd_soc_jack_report(jack_data->mfld_jack, status, mask); /*button pressed and released so we send explicit button release */ if ((status & SND_JACK_BTN_0) | (status & SND_JACK_BTN_1)) snd_soc_jack_report(jack_data->mfld_jack, SND_JACK_HEADSET, mask); } EXPORT_SYMBOL_GPL(sn95031_jack_detection); /* codec registration */ static int sn95031_codec_probe(struct snd_soc_codec *codec) { pr_debug("codec_probe called\n"); codec->dapm.bias_level = SND_SOC_BIAS_OFF; codec->dapm.idle_bias_off = 1; /* PCM interface config * This sets the pcm rx slot conguration to max 6 slots * for max 4 dais (2 stereo and 2 mono) */ snd_soc_write(codec, SN95031_PCM2RXSLOT01, 0x10); snd_soc_write(codec, SN95031_PCM2RXSLOT23, 0x32); snd_soc_write(codec, SN95031_PCM2RXSLOT45, 0x54); snd_soc_write(codec, SN95031_PCM2TXSLOT01, 0x10); snd_soc_write(codec, SN95031_PCM2TXSLOT23, 0x32); /* pcm port setting * This sets the pcm port to slave and clock at 19.2Mhz which * can support 6slots, sampling rate set per stream in hw-params */ snd_soc_write(codec, SN95031_PCM1C1, 0x00); snd_soc_write(codec, SN95031_PCM2C1, 0x01); snd_soc_write(codec, SN95031_PCM2C2, 0x0A); snd_soc_write(codec, SN95031_HSMIXER, BIT(0)|BIT(4)); /* vendor vibra workround, the vibras are muted by * custom register so unmute them */ snd_soc_write(codec, SN95031_SSR5, 0x80); snd_soc_write(codec, SN95031_SSR6, 0x80); snd_soc_write(codec, SN95031_VIB1C5, 0x00); snd_soc_write(codec, SN95031_VIB2C5, 0x00); /* configure vibras for pcm port */ snd_soc_write(codec, SN95031_VIB1C3, 0x00); snd_soc_write(codec, SN95031_VIB2C3, 0x00); /* soft mute ramp time */ snd_soc_write(codec, SN95031_SOFTMUTE, 0x3); /* fix the initial volume at 1dB, * default in +9dB, * 1dB give optimal swing on DAC, amps */ snd_soc_write(codec, SN95031_HSLVOLCTRL, 0x08); snd_soc_write(codec, SN95031_HSRVOLCTRL, 0x08); snd_soc_write(codec, SN95031_IHFLVOLCTRL, 0x08); snd_soc_write(codec, SN95031_IHFRVOLCTRL, 0x08); /* dac mode and lineout workaround */ snd_soc_write(codec, SN95031_SSR2, 0x10); snd_soc_write(codec, SN95031_SSR3, 0x40); snd_soc_add_controls(codec, sn95031_snd_controls, ARRAY_SIZE(sn95031_snd_controls)); return 0; } static int sn95031_codec_remove(struct snd_soc_codec *codec) { pr_debug("codec_remove called\n"); sn95031_set_vaud_bias(codec, SND_SOC_BIAS_OFF); return 0; } struct snd_soc_codec_driver sn95031_codec = { .probe = sn95031_codec_probe, .remove = sn95031_codec_remove, .read = sn95031_read, .write = sn95031_write, .set_bias_level = sn95031_set_vaud_bias, .dapm_widgets = sn95031_dapm_widgets, .num_dapm_widgets = ARRAY_SIZE(sn95031_dapm_widgets), .dapm_routes = sn95031_audio_map, .num_dapm_routes = ARRAY_SIZE(sn95031_audio_map), }; static int __devinit sn95031_device_probe(struct platform_device *pdev) { pr_debug("codec device probe called for %s\n", dev_name(&pdev->dev)); return snd_soc_register_codec(&pdev->dev, &sn95031_codec, sn95031_dais, ARRAY_SIZE(sn95031_dais)); } static int __devexit sn95031_device_remove(struct platform_device *pdev) { pr_debug("codec device remove called\n"); snd_soc_unregister_codec(&pdev->dev); return 0; } static struct platform_driver sn95031_codec_driver = { .driver = { .name = "sn95031", .owner = THIS_MODULE, }, .probe = sn95031_device_probe, .remove = __devexit_p(sn95031_device_remove), }; static int __init sn95031_init(void) { pr_debug("driver init called\n"); return platform_driver_register(&sn95031_codec_driver); } module_init(sn95031_init); static void __exit sn95031_exit(void) { pr_debug("driver exit called\n"); platform_driver_unregister(&sn95031_codec_driver); } module_exit(sn95031_exit); MODULE_DESCRIPTION("ASoC TI SN95031 codec driver"); MODULE_AUTHOR("Vinod Koul "); MODULE_AUTHOR("Harsha Priya "); MODULE_LICENSE("GPL v2"); MODULE_ALIAS("platform:sn95031");