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- /*
- * cht-bsw-max98090.c - ASoc Machine driver for Intel Cherryview-based
- * platforms Cherrytrail and Braswell, with max98090 & TI codec.
- *
- * Copyright (C) 2015 Intel Corp
- * Author: Fang, Yang A <yang.a.fang@intel.com>
- * This file is modified from cht_bsw_rt5645.c
- * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
- *
- * 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.
- *
- * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
- */
- #include <linux/module.h>
- #include <linux/platform_device.h>
- #include <linux/slab.h>
- #include <linux/acpi.h>
- #include <sound/pcm.h>
- #include <sound/pcm_params.h>
- #include <sound/soc.h>
- #include <sound/jack.h>
- #include "../../codecs/max98090.h"
- #include "../atom/sst-atom-controls.h"
- #include "../../codecs/ts3a227e.h"
- #define CHT_PLAT_CLK_3_HZ 19200000
- #define CHT_CODEC_DAI "HiFi"
- struct cht_mc_private {
- struct snd_soc_jack jack;
- bool ts3a227e_present;
- };
- static inline struct snd_soc_dai *cht_get_codec_dai(struct snd_soc_card *card)
- {
- int i;
- for (i = 0; i < card->num_rtd; i++) {
- struct snd_soc_pcm_runtime *rtd;
- rtd = card->rtd + i;
- if (!strncmp(rtd->codec_dai->name, CHT_CODEC_DAI,
- strlen(CHT_CODEC_DAI)))
- return rtd->codec_dai;
- }
- return NULL;
- }
- static const struct snd_soc_dapm_widget cht_dapm_widgets[] = {
- SND_SOC_DAPM_HP("Headphone", NULL),
- SND_SOC_DAPM_MIC("Headset Mic", NULL),
- SND_SOC_DAPM_MIC("Int Mic", NULL),
- SND_SOC_DAPM_SPK("Ext Spk", NULL),
- };
- static const struct snd_soc_dapm_route cht_audio_map[] = {
- {"IN34", NULL, "Headset Mic"},
- {"Headset Mic", NULL, "MICBIAS"},
- {"DMICL", NULL, "Int Mic"},
- {"Headphone", NULL, "HPL"},
- {"Headphone", NULL, "HPR"},
- {"Ext Spk", NULL, "SPKL"},
- {"Ext Spk", NULL, "SPKR"},
- {"HiFi Playback", NULL, "ssp2 Tx"},
- {"ssp2 Tx", NULL, "codec_out0"},
- {"ssp2 Tx", NULL, "codec_out1"},
- {"codec_in0", NULL, "ssp2 Rx" },
- {"codec_in1", NULL, "ssp2 Rx" },
- {"ssp2 Rx", NULL, "HiFi Capture"},
- };
- static const struct snd_kcontrol_new cht_mc_controls[] = {
- SOC_DAPM_PIN_SWITCH("Headphone"),
- SOC_DAPM_PIN_SWITCH("Headset Mic"),
- SOC_DAPM_PIN_SWITCH("Int Mic"),
- SOC_DAPM_PIN_SWITCH("Ext Spk"),
- };
- static int cht_aif1_hw_params(struct snd_pcm_substream *substream,
- struct snd_pcm_hw_params *params)
- {
- struct snd_soc_pcm_runtime *rtd = substream->private_data;
- struct snd_soc_dai *codec_dai = rtd->codec_dai;
- int ret;
- ret = snd_soc_dai_set_sysclk(codec_dai, M98090_REG_SYSTEM_CLOCK,
- CHT_PLAT_CLK_3_HZ, SND_SOC_CLOCK_IN);
- if (ret < 0) {
- dev_err(rtd->dev, "can't set codec sysclk: %d\n", ret);
- return ret;
- }
- return 0;
- }
- static int cht_ti_jack_event(struct notifier_block *nb,
- unsigned long event, void *data)
- {
- struct snd_soc_jack *jack = (struct snd_soc_jack *)data;
- struct snd_soc_dapm_context *dapm = &jack->card->dapm;
- if (event & SND_JACK_MICROPHONE) {
- snd_soc_dapm_force_enable_pin(dapm, "SHDN");
- snd_soc_dapm_force_enable_pin(dapm, "MICBIAS");
- snd_soc_dapm_sync(dapm);
- } else {
- snd_soc_dapm_disable_pin(dapm, "MICBIAS");
- snd_soc_dapm_disable_pin(dapm, "SHDN");
- snd_soc_dapm_sync(dapm);
- }
- return 0;
- }
- static struct notifier_block cht_jack_nb = {
- .notifier_call = cht_ti_jack_event,
- };
- static int cht_codec_init(struct snd_soc_pcm_runtime *runtime)
- {
- int ret;
- int jack_type;
- struct cht_mc_private *ctx = snd_soc_card_get_drvdata(runtime->card);
- struct snd_soc_jack *jack = &ctx->jack;
- if (ctx->ts3a227e_present) {
- /*
- * The jack has already been created in the
- * cht_max98090_headset_init() function.
- */
- snd_soc_jack_notifier_register(jack, &cht_jack_nb);
- return 0;
- }
- jack_type = SND_JACK_HEADPHONE | SND_JACK_MICROPHONE;
- ret = snd_soc_card_jack_new(runtime->card, "Headset Jack",
- jack_type, jack, NULL, 0);
- if (ret) {
- dev_err(runtime->dev, "Headset Jack creation failed %d\n", ret);
- return ret;
- }
- if (ctx->ts3a227e_present)
- snd_soc_jack_notifier_register(jack, &cht_jack_nb);
- return ret;
- }
- static int cht_codec_fixup(struct snd_soc_pcm_runtime *rtd,
- struct snd_pcm_hw_params *params)
- {
- struct snd_interval *rate = hw_param_interval(params,
- SNDRV_PCM_HW_PARAM_RATE);
- struct snd_interval *channels = hw_param_interval(params,
- SNDRV_PCM_HW_PARAM_CHANNELS);
- int ret = 0;
- unsigned int fmt = 0;
- ret = snd_soc_dai_set_tdm_slot(rtd->cpu_dai, 0x3, 0x3, 2, 16);
- if (ret < 0) {
- dev_err(rtd->dev, "can't set cpu_dai slot fmt: %d\n", ret);
- return ret;
- }
- fmt = SND_SOC_DAIFMT_LEFT_J | SND_SOC_DAIFMT_NB_NF
- | SND_SOC_DAIFMT_CBS_CFS;
- ret = snd_soc_dai_set_fmt(rtd->cpu_dai, fmt);
- if (ret < 0) {
- dev_err(rtd->dev, "can't set cpu_dai set fmt: %d\n", ret);
- return ret;
- }
- /* The DSP will covert the FE rate to 48k, stereo, 24bits */
- rate->min = rate->max = 48000;
- channels->min = channels->max = 2;
- /* set SSP2 to 24-bit */
- params_set_format(params, SNDRV_PCM_FORMAT_S24_LE);
- return 0;
- }
- static int cht_aif1_startup(struct snd_pcm_substream *substream)
- {
- return snd_pcm_hw_constraint_single(substream->runtime,
- SNDRV_PCM_HW_PARAM_RATE, 48000);
- }
- static int cht_max98090_headset_init(struct snd_soc_component *component)
- {
- struct snd_soc_card *card = component->card;
- struct cht_mc_private *ctx = snd_soc_card_get_drvdata(card);
- struct snd_soc_jack *jack = &ctx->jack;
- int jack_type;
- int ret;
- /*
- * TI supports 4 butons headset detection
- * KEY_MEDIA
- * KEY_VOICECOMMAND
- * KEY_VOLUMEUP
- * KEY_VOLUMEDOWN
- */
- jack_type = SND_JACK_HEADPHONE | SND_JACK_MICROPHONE |
- SND_JACK_BTN_0 | SND_JACK_BTN_1 |
- SND_JACK_BTN_2 | SND_JACK_BTN_3;
- ret = snd_soc_card_jack_new(card, "Headset Jack", jack_type,
- jack, NULL, 0);
- if (ret) {
- dev_err(card->dev, "Headset Jack creation failed %d\n", ret);
- return ret;
- }
- return ts3a227e_enable_jack_detect(component, &ctx->jack);
- }
- static struct snd_soc_ops cht_aif1_ops = {
- .startup = cht_aif1_startup,
- };
- static struct snd_soc_ops cht_be_ssp2_ops = {
- .hw_params = cht_aif1_hw_params,
- };
- static struct snd_soc_aux_dev cht_max98090_headset_dev = {
- .name = "Headset Chip",
- .init = cht_max98090_headset_init,
- .codec_name = "i2c-104C227E:00",
- };
- static struct snd_soc_dai_link cht_dailink[] = {
- [MERR_DPCM_AUDIO] = {
- .name = "Audio Port",
- .stream_name = "Audio",
- .cpu_dai_name = "media-cpu-dai",
- .codec_dai_name = "snd-soc-dummy-dai",
- .codec_name = "snd-soc-dummy",
- .platform_name = "sst-mfld-platform",
- .nonatomic = true,
- .dynamic = 1,
- .dpcm_playback = 1,
- .dpcm_capture = 1,
- .ops = &cht_aif1_ops,
- },
- [MERR_DPCM_COMPR] = {
- .name = "Compressed Port",
- .stream_name = "Compress",
- .cpu_dai_name = "compress-cpu-dai",
- .codec_dai_name = "snd-soc-dummy-dai",
- .codec_name = "snd-soc-dummy",
- .platform_name = "sst-mfld-platform",
- },
- /* back ends */
- {
- .name = "SSP2-Codec",
- .be_id = 1,
- .cpu_dai_name = "ssp2-port",
- .platform_name = "sst-mfld-platform",
- .no_pcm = 1,
- .codec_dai_name = "HiFi",
- .codec_name = "i2c-193C9890:00",
- .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
- | SND_SOC_DAIFMT_CBS_CFS,
- .init = cht_codec_init,
- .be_hw_params_fixup = cht_codec_fixup,
- .dpcm_playback = 1,
- .dpcm_capture = 1,
- .ops = &cht_be_ssp2_ops,
- },
- };
- /* SoC card */
- static struct snd_soc_card snd_soc_card_cht = {
- .name = "chtmax98090",
- .owner = THIS_MODULE,
- .dai_link = cht_dailink,
- .num_links = ARRAY_SIZE(cht_dailink),
- .aux_dev = &cht_max98090_headset_dev,
- .num_aux_devs = 1,
- .dapm_widgets = cht_dapm_widgets,
- .num_dapm_widgets = ARRAY_SIZE(cht_dapm_widgets),
- .dapm_routes = cht_audio_map,
- .num_dapm_routes = ARRAY_SIZE(cht_audio_map),
- .controls = cht_mc_controls,
- .num_controls = ARRAY_SIZE(cht_mc_controls),
- };
- static acpi_status snd_acpi_codec_match(acpi_handle handle, u32 level,
- void *context, void **ret)
- {
- *(bool *)context = true;
- return AE_OK;
- }
- static int snd_cht_mc_probe(struct platform_device *pdev)
- {
- int ret_val = 0;
- bool found = false;
- struct cht_mc_private *drv;
- drv = devm_kzalloc(&pdev->dev, sizeof(*drv), GFP_ATOMIC);
- if (!drv)
- return -ENOMEM;
- if (ACPI_SUCCESS(acpi_get_devices(
- "104C227E",
- snd_acpi_codec_match,
- &found, NULL)) && found) {
- drv->ts3a227e_present = true;
- } else {
- /* no need probe TI jack detection chip */
- snd_soc_card_cht.aux_dev = NULL;
- snd_soc_card_cht.num_aux_devs = 0;
- drv->ts3a227e_present = false;
- }
- /* register the soc card */
- snd_soc_card_cht.dev = &pdev->dev;
- snd_soc_card_set_drvdata(&snd_soc_card_cht, drv);
- ret_val = devm_snd_soc_register_card(&pdev->dev, &snd_soc_card_cht);
- if (ret_val) {
- dev_err(&pdev->dev,
- "snd_soc_register_card failed %d\n", ret_val);
- return ret_val;
- }
- platform_set_drvdata(pdev, &snd_soc_card_cht);
- return ret_val;
- }
- static struct platform_driver snd_cht_mc_driver = {
- .driver = {
- .name = "cht-bsw-max98090",
- },
- .probe = snd_cht_mc_probe,
- };
- module_platform_driver(snd_cht_mc_driver)
- MODULE_DESCRIPTION("ASoC Intel(R) Braswell Machine driver");
- MODULE_AUTHOR("Fang, Yang A <yang.a.fang@intel.com>");
- MODULE_LICENSE("GPL v2");
- MODULE_ALIAS("platform:cht-bsw-max98090");
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