From 4dc69be22163bab880384858f30cb8cc76ad47f9 Mon Sep 17 00:00:00 2001 From: Vinod Koul Date: Tue, 4 Jan 2011 20:16:07 +0530 Subject: ASoC: sst v2: Add sn95031 codec driver This patch adds the sn95031 asoc codec driver. This driver currently supports only playback. Capture and jack detection to be added later Signed-off-by: Vinod Koul Signed-off-by: Harsha Priya Acked-by: Liam Girdwood Signed-off-by: Mark Brown --- sound/soc/codecs/sn95031.c | 495 +++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 495 insertions(+) create mode 100644 sound/soc/codecs/sn95031.c (limited to 'sound/soc/codecs/sn95031.c') diff --git a/sound/soc/codecs/sn95031.c b/sound/soc/codecs/sn95031.c new file mode 100644 index 000000000000..146b74467ae7 --- /dev/null +++ b/sound/soc/codecs/sn95031.c @@ -0,0 +1,495 @@ +/* + * 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 "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) + +/* + * todo: + * capture paths + * jack detection + * PM 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; +} + +/* 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_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), +}; + +static const struct snd_soc_dapm_route sn95031_audio_map[] = { + /* headset and earpiece map */ + { "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"}, + { "HSDAC Left", NULL, "Headset Rail"}, + { "HSDAC Right", NULL, "Headset Rail"}, + + /* speaker map */ + { "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"}, + { "IHFDAC Left", NULL, "Speaker Rail"}, + { "IHFDAC Right", NULL, "Speaker Rail"}, + + /* 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"}, +}; + +/* 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, + }, + .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, +}, +}; + +/* codec registration */ +static int sn95031_codec_probe(struct snd_soc_codec *codec) +{ + int ret; + + 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); + /* 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); + + ret = snd_soc_dapm_new_controls(&codec->dapm, sn95031_dapm_widgets, + ARRAY_SIZE(sn95031_dapm_widgets)); + if (ret) + pr_err("soc_dapm_new_control failed %d", ret); + ret = snd_soc_dapm_add_routes(&codec->dapm, sn95031_audio_map, + ARRAY_SIZE(sn95031_audio_map)); + if (ret) + pr_err("soc_dapm_add_routes failed %d", ret); + + return ret; +} + +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, +}; + +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 = 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 Intel(R) SN95031 codec driver"); +MODULE_AUTHOR("Vinod Koul "); +MODULE_AUTHOR("Harsha Priya "); +MODULE_LICENSE("GPL v2"); +MODULE_ALIAS("platform:sn95031"); -- cgit v1.2.3