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Diffstat (limited to 'sound/soc/codecs/sn95031.c')
| -rw-r--r-- | sound/soc/codecs/sn95031.c | 930 |
1 files changed, 930 insertions, 0 deletions
diff --git a/sound/soc/codecs/sn95031.c b/sound/soc/codecs/sn95031.c new file mode 100644 index 000000000..7947c0ebb --- /dev/null +++ b/sound/soc/codecs/sn95031.c @@ -0,0 +1,930 @@ +/* + * sn95031.c - TI sn95031 Codec driver + * + * Copyright (C) 2010 Intel Corp + * Author: Vinod Koul <vinod.koul@intel.com> + * Author: Harsha Priya <priya.harsha@intel.com> + * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ + * + * 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 <linux/platform_device.h> +#include <linux/delay.h> +#include <linux/slab.h> +#include <linux/module.h> + +#include <asm/intel_scu_ipc.h> +#include <sound/pcm.h> +#include <sound/pcm_params.h> +#include <sound/soc.h> +#include <sound/soc-dapm.h> +#include <sound/initval.h> +#include <sound/tlv.h> +#include <sound/jack.h> +#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 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) + break; + } + return (i == SN95031_ADC_CHANLS_MAX) ? (-EINVAL) : i; +} + +/* 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; + 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; +} +/*end - adc helper functions */ + +static int sn95031_read(void *ctx, unsigned int reg, unsigned int *val) +{ + u8 value = 0; + int ret; + + ret = intel_scu_ipc_ioread8(reg, &value); + if (ret == 0) + *val = value; + + return ret; +} + +static int sn95031_write(void *ctx, unsigned int reg, unsigned int value) +{ + return intel_scu_ipc_iowrite8(reg, value); +} + +static const struct regmap_config sn95031_regmap = { + .reg_read = sn95031_read, + .reg_write = sn95031_write, +}; + +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) +{ + struct snd_soc_codec *codec = snd_soc_dapm_to_codec(w->dapm); + + 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(codec, SN95031_VHSP, 0x3D); + snd_soc_write(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(codec, SN95031_VHSP, 0xC4); + snd_soc_write(codec, SN95031_VHSN, 0x04); + } + return 0; +} + +static int sn95031_vihf_event(struct snd_soc_dapm_widget *w, + struct snd_kcontrol *kcontrol, int event) +{ + struct snd_soc_codec *codec = snd_soc_dapm_to_codec(w->dapm); + + 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(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(codec, SN95031_VIHF, 0x24); + } + return 0; +} + +static int sn95031_dmic12_event(struct snd_soc_dapm_widget *w, + struct snd_kcontrol *k, int event) +{ + struct snd_soc_codec *codec = snd_soc_dapm_to_codec(w->dapm); + 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(codec, SN95031_MICBIAS, BIT(5)|BIT(4), ldo); + snd_soc_update_bits(codec, SN95031_DMICBUF0123, BIT(0), clk_dir); + snd_soc_update_bits(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) +{ + struct snd_soc_codec *codec = snd_soc_dapm_to_codec(w->dapm); + 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(codec, SN95031_MICBIAS, BIT(5)|BIT(4), ldo); + snd_soc_update_bits(codec, SN95031_DMICBUF0123, BIT(2), clk_dir); + snd_soc_update_bits(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) +{ + struct snd_soc_codec *codec = snd_soc_dapm_to_codec(w->dapm); + unsigned int ldo = 0; + + if (SND_SOC_DAPM_EVENT_ON(event)) + ldo = BIT(7)|BIT(6); + + /* program DMIC LDO */ + snd_soc_update_bits(codec, SN95031_MICBIAS, BIT(7)|BIT(6), ldo); + return 0; +} + +/* mux controls */ +static const char *sn95031_mic_texts[] = { "AMIC", "LineIn" }; + +static SOC_ENUM_SINGLE_DECL(sn95031_micl_enum, + SN95031_ADCCONFIG, 1, sn95031_mic_texts); + +static const struct snd_kcontrol_new sn95031_micl_mux_control = + SOC_DAPM_ENUM("Route", sn95031_micl_enum); + +static SOC_ENUM_SINGLE_DECL(sn95031_micr_enum, + SN95031_ADCCONFIG, 3, 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 SOC_ENUM_SINGLE_DECL(sn95031_input1_enum, + SN95031_AUDIOMUX12, 0, sn95031_input_texts); + +static const struct snd_kcontrol_new sn95031_input1_mux_control = + SOC_DAPM_ENUM("Route", sn95031_input1_enum); + +static SOC_ENUM_SINGLE_DECL(sn95031_input2_enum, + SN95031_AUDIOMUX12, 4, sn95031_input_texts); + +static const struct snd_kcontrol_new sn95031_input2_mux_control = + SOC_DAPM_ENUM("Route", sn95031_input2_enum); + +static SOC_ENUM_SINGLE_DECL(sn95031_input3_enum, + SN95031_AUDIOMUX34, 0, sn95031_input_texts); + +static const struct snd_kcontrol_new sn95031_input3_mux_control = + SOC_DAPM_ENUM("Route", sn95031_input3_enum); + +static SOC_ENUM_SINGLE_DECL(sn95031_input4_enum, + SN95031_AUDIOMUX34, 4, 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 SOC_ENUM_SINGLE_DECL(sn95031_micmode1_enum, + SN95031_MICAMP1, 1, sn95031_micmode_text); +static SOC_ENUM_SINGLE_DECL(sn95031_micmode2_enum, + SN95031_MICAMP2, 1, sn95031_micmode_text); + +static const char *sn95031_dmic_cfg_text[] = {"GPO", "DMIC"}; + +static SOC_ENUM_SINGLE_DECL(sn95031_dmic12_cfg_enum, + SN95031_DMICMUX, 0, sn95031_dmic_cfg_text); +static SOC_ENUM_SINGLE_DECL(sn95031_dmic34_cfg_enum, + SN95031_DMICMUX, 1, sn95031_dmic_cfg_text); +static SOC_ENUM_SINGLE_DECL(sn95031_dmic56_cfg_enum, + SN95031_DMICMUX, 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; +} + +static 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_width(params)) { + case 16: + format = BIT(4)|BIT(5); + break; + + case 24: + 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 const struct snd_soc_dai_ops sn95031_headset_dai_ops = { + .digital_mute = sn95031_pcm_hs_mute, + .hw_params = sn95031_pcm_hw_params, +}; + +static const struct snd_soc_dai_ops sn95031_speaker_dai_ops = { + .digital_mute = sn95031_pcm_spkr_mute, + .hw_params = sn95031_pcm_hw_params, +}; + +static const struct snd_soc_dai_ops sn95031_vib1_dai_ops = { + .hw_params = sn95031_pcm_hw_params, +}; + +static const struct snd_soc_dai_ops sn95031_vib2_dai_ops = { + .hw_params = sn95031_pcm_hw_params, +}; + +static 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_codec *codec, + struct snd_soc_jack *mfld_jack) +{ + int micbias = sn95031_get_mic_bias(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(codec); + return jack_type; +} + +void sn95031_jack_detection(struct snd_soc_codec *codec, + 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(codec, jack_data->mfld_jack); + } else if (jack_data->intr_id & 0x8) { + pr_debug("headset or headphones removed\n"); + status = 0; + sn95031_disable_jack_btn(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"); + + /* 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); + + return 0; +} + +static struct snd_soc_codec_driver sn95031_codec = { + .probe = sn95031_codec_probe, + .set_bias_level = sn95031_set_vaud_bias, + .idle_bias_off = true, + + .controls = sn95031_snd_controls, + .num_controls = ARRAY_SIZE(sn95031_snd_controls), + .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 sn95031_device_probe(struct platform_device *pdev) +{ + struct regmap *regmap; + + pr_debug("codec device probe called for %s\n", dev_name(&pdev->dev)); + + regmap = devm_regmap_init(&pdev->dev, NULL, NULL, &sn95031_regmap); + if (IS_ERR(regmap)) + return PTR_ERR(regmap); + + return snd_soc_register_codec(&pdev->dev, &sn95031_codec, + sn95031_dais, ARRAY_SIZE(sn95031_dais)); +} + +static int 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", + }, + .probe = sn95031_device_probe, + .remove = sn95031_device_remove, +}; + +module_platform_driver(sn95031_codec_driver); + +MODULE_DESCRIPTION("ASoC TI SN95031 codec driver"); +MODULE_AUTHOR("Vinod Koul <vinod.koul@intel.com>"); +MODULE_AUTHOR("Harsha Priya <priya.harsha@intel.com>"); +MODULE_LICENSE("GPL v2"); +MODULE_ALIAS("platform:sn95031"); |