diff options
Diffstat (limited to 'sound')
| -rw-r--r-- | sound/soc/samsung/Kconfig | 8 | ||||
| -rw-r--r-- | sound/soc/samsung/Makefile | 2 | ||||
| -rw-r--r-- | sound/soc/samsung/midas_wm1811.c | 543 |
3 files changed, 553 insertions, 0 deletions
diff --git a/sound/soc/samsung/Kconfig b/sound/soc/samsung/Kconfig index 4b5c3481fe62..1431be4ed054 100644 --- a/sound/soc/samsung/Kconfig +++ b/sound/soc/samsung/Kconfig @@ -225,4 +225,12 @@ config SND_SOC_SAMSUNG_ARIES_WM8994 via ADC, GPIOs, and an extcon device. Switching between the Mic and TV-Out path is also handled. +config SND_SOC_SAMSUNG_MIDAS_WM1811 + tristate "SoC I2S Audio support for Midas boards" + depends on SND_SOC_SAMSUNG + select SND_SAMSUNG_I2S + select SND_SOC_WM8994 + help + Say Y if you want to add support for SoC audio on the Midas boards. + endif #SND_SOC_SAMSUNG diff --git a/sound/soc/samsung/Makefile b/sound/soc/samsung/Makefile index 22259f7818f0..398e843f388c 100644 --- a/sound/soc/samsung/Makefile +++ b/sound/soc/samsung/Makefile @@ -42,6 +42,7 @@ snd-soc-odroid-objs := odroid.o snd-soc-arndale-objs := arndale.o snd-soc-tm2-wm5110-objs := tm2_wm5110.o snd-soc-aries-wm8994-objs := aries_wm8994.o +snd-soc-midas-wm1811-objs := midas_wm1811.o obj-$(CONFIG_SND_SOC_SAMSUNG_JIVE_WM8750) += snd-soc-jive-wm8750.o obj-$(CONFIG_SND_SOC_SAMSUNG_NEO1973_WM8753) += snd-soc-neo1973-wm8753.o @@ -66,3 +67,4 @@ obj-$(CONFIG_SND_SOC_ODROID) += snd-soc-odroid.o obj-$(CONFIG_SND_SOC_ARNDALE) += snd-soc-arndale.o obj-$(CONFIG_SND_SOC_SAMSUNG_TM2_WM5110) += snd-soc-tm2-wm5110.o obj-$(CONFIG_SND_SOC_SAMSUNG_ARIES_WM8994) += snd-soc-aries-wm8994.o +obj-$(CONFIG_SND_SOC_SAMSUNG_MIDAS_WM1811) += snd-soc-midas-wm1811.o diff --git a/sound/soc/samsung/midas_wm1811.c b/sound/soc/samsung/midas_wm1811.c new file mode 100644 index 000000000000..d03340ce49a2 --- /dev/null +++ b/sound/soc/samsung/midas_wm1811.c @@ -0,0 +1,543 @@ +// SPDX-License-Identifier: GPL-2.0+ +// +// Midas audio support +// +// Copyright (C) 2018 Simon Shields <simon@lineageos.org> +// Copyright (C) 2020 Samsung Electronics Co., Ltd. + +#include <linux/clk.h> +#include <linux/mfd/wm8994/registers.h> +#include <linux/module.h> +#include <linux/of.h> +#include <linux/of_device.h> +#include <linux/of_gpio.h> +#include <linux/regulator/consumer.h> +#include <sound/jack.h> +#include <sound/soc.h> +#include <sound/soc-dapm.h> + +#include "i2s.h" +#include "../codecs/wm8994.h" + +/* + * The MCLK1 clock source is XCLKOUT with its mux set to the external fixed rate + * oscillator (XXTI). + */ +#define MCLK1_RATE 24000000U +#define MCLK2_RATE 32768U +#define DEFAULT_FLL1_RATE 11289600U + +struct midas_priv { + struct regulator *reg_mic_bias; + struct regulator *reg_submic_bias; + struct gpio_desc *gpio_fm_sel; + struct gpio_desc *gpio_lineout_sel; + unsigned int fll1_rate; + + struct snd_soc_jack headset_jack; +}; + +static int midas_start_fll1(struct snd_soc_pcm_runtime *rtd, unsigned int rate) +{ + struct snd_soc_card *card = rtd->card; + struct midas_priv *priv = snd_soc_card_get_drvdata(card); + struct snd_soc_dai *aif1_dai = asoc_rtd_to_codec(rtd, 0); + struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0); + int ret; + + if (!rate) + rate = priv->fll1_rate; + /* + * If no new rate is requested, set FLL1 to a sane default for jack + * detection. + */ + if (!rate) + rate = DEFAULT_FLL1_RATE; + + if (rate != priv->fll1_rate && priv->fll1_rate) { + /* while reconfiguring, switch to MCLK2 for SYSCLK */ + ret = snd_soc_dai_set_sysclk(aif1_dai, WM8994_SYSCLK_MCLK2, + MCLK2_RATE, SND_SOC_CLOCK_IN); + if (ret < 0) { + dev_err(card->dev, "Unable to switch to MCLK2: %d\n", ret); + return ret; + } + } + + ret = snd_soc_dai_set_pll(aif1_dai, WM8994_FLL1, WM8994_FLL_SRC_MCLK1, + MCLK1_RATE, rate); + if (ret < 0) { + dev_err(card->dev, "Failed to set FLL1 rate: %d\n", ret); + return ret; + } + priv->fll1_rate = rate; + + ret = snd_soc_dai_set_sysclk(aif1_dai, WM8994_SYSCLK_FLL1, + priv->fll1_rate, SND_SOC_CLOCK_IN); + if (ret < 0) { + dev_err(card->dev, "Failed to set SYSCLK source: %d\n", ret); + return ret; + } + + ret = snd_soc_dai_set_sysclk(cpu_dai, SAMSUNG_I2S_OPCLK, 0, + SAMSUNG_I2S_OPCLK_PCLK); + if (ret < 0) { + dev_err(card->dev, "Failed to set OPCLK source: %d\n", ret); + return ret; + } + + return 0; +} + +static int midas_stop_fll1(struct snd_soc_pcm_runtime *rtd) +{ + struct snd_soc_card *card = rtd->card; + struct midas_priv *priv = snd_soc_card_get_drvdata(card); + struct snd_soc_dai *aif1_dai = asoc_rtd_to_codec(rtd, 0); + int ret; + + ret = snd_soc_dai_set_sysclk(aif1_dai, WM8994_SYSCLK_MCLK2, + MCLK2_RATE, SND_SOC_CLOCK_IN); + if (ret < 0) { + dev_err(card->dev, "Unable to switch to MCLK2: %d\n", ret); + return ret; + } + + ret = snd_soc_dai_set_pll(aif1_dai, WM8994_FLL1, 0, 0, 0); + if (ret < 0) { + dev_err(card->dev, "Unable to stop FLL1: %d\n", ret); + return ret; + } + + priv->fll1_rate = 0; + + return 0; +} + +static int midas_aif1_hw_params(struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *params) +{ + struct snd_soc_pcm_runtime *rtd = substream->private_data; + unsigned int pll_out; + + /* AIF1CLK should be at least 3MHz for "optimal performance" */ + if (params_rate(params) == 8000 || params_rate(params) == 11025) + pll_out = params_rate(params) * 512; + else + pll_out = params_rate(params) * 256; + + return midas_start_fll1(rtd, pll_out); +} + +static struct snd_soc_ops midas_aif1_ops = { + .hw_params = midas_aif1_hw_params, +}; + +/* + * We only have a single external speaker, so mix stereo data + * to a single mono stream. + */ +static int midas_ext_spkmode(struct snd_soc_dapm_widget *w, + struct snd_kcontrol *kcontrol, int event) +{ + struct snd_soc_component *codec = snd_soc_dapm_to_component(w->dapm); + int ret = 0; + + switch (event) { + case SND_SOC_DAPM_PRE_PMU: + ret = snd_soc_component_update_bits(codec, WM8994_SPKOUT_MIXERS, + WM8994_SPKMIXR_TO_SPKOUTL_MASK, + WM8994_SPKMIXR_TO_SPKOUTL); + break; + case SND_SOC_DAPM_POST_PMD: + ret = snd_soc_component_update_bits(codec, WM8994_SPKOUT_MIXERS, + WM8994_SPKMIXR_TO_SPKOUTL_MASK, + 0); + break; + } + + return ret; +} + +static int midas_mic_bias(struct snd_soc_dapm_widget *w, + struct snd_kcontrol *kcontrol, int event) +{ + struct snd_soc_card *card = w->dapm->card; + struct midas_priv *priv = snd_soc_card_get_drvdata(card); + + switch (event) { + case SND_SOC_DAPM_PRE_PMU: + return regulator_enable(priv->reg_mic_bias); + case SND_SOC_DAPM_POST_PMD: + return regulator_disable(priv->reg_mic_bias); + } + + return 0; +} + +static int midas_submic_bias(struct snd_soc_dapm_widget *w, + struct snd_kcontrol *kcontrol, int event) +{ + struct snd_soc_card *card = w->dapm->card; + struct midas_priv *priv = snd_soc_card_get_drvdata(card); + + switch (event) { + case SND_SOC_DAPM_PRE_PMU: + return regulator_enable(priv->reg_submic_bias); + case SND_SOC_DAPM_POST_PMD: + return regulator_disable(priv->reg_submic_bias); + } + + return 0; +} + +static int midas_fm_set(struct snd_soc_dapm_widget *w, + struct snd_kcontrol *kcontrol, int event) +{ + struct snd_soc_card *card = w->dapm->card; + struct midas_priv *priv = snd_soc_card_get_drvdata(card); + + if (!priv->gpio_fm_sel) + return 0; + + switch (event) { + case SND_SOC_DAPM_PRE_PMU: + gpiod_set_value_cansleep(priv->gpio_fm_sel, 1); + break; + case SND_SOC_DAPM_POST_PMD: + gpiod_set_value_cansleep(priv->gpio_fm_sel, 0); + break; + } + + return 0; +} + +static int midas_line_set(struct snd_soc_dapm_widget *w, + struct snd_kcontrol *kcontrol, int event) +{ + struct snd_soc_card *card = w->dapm->card; + struct midas_priv *priv = snd_soc_card_get_drvdata(card); + + if (!priv->gpio_lineout_sel) + return 0; + + switch (event) { + case SND_SOC_DAPM_PRE_PMU: + gpiod_set_value_cansleep(priv->gpio_lineout_sel, 1); + break; + case SND_SOC_DAPM_POST_PMD: + gpiod_set_value_cansleep(priv->gpio_lineout_sel, 0); + break; + } + + return 0; +} + +static const struct snd_kcontrol_new midas_controls[] = { + SOC_DAPM_PIN_SWITCH("HP"), + + SOC_DAPM_PIN_SWITCH("SPK"), + SOC_DAPM_PIN_SWITCH("RCV"), + + SOC_DAPM_PIN_SWITCH("LINE"), + SOC_DAPM_PIN_SWITCH("HDMI"), + + SOC_DAPM_PIN_SWITCH("Main Mic"), + SOC_DAPM_PIN_SWITCH("Sub Mic"), + SOC_DAPM_PIN_SWITCH("Headset Mic"), + + SOC_DAPM_PIN_SWITCH("FM In"), +}; + +static const struct snd_soc_dapm_widget midas_dapm_widgets[] = { + SND_SOC_DAPM_HP("HP", NULL), + + SND_SOC_DAPM_SPK("SPK", midas_ext_spkmode), + SND_SOC_DAPM_SPK("RCV", NULL), + + /* FIXME: toggle MAX77693 on i9300/i9305 */ + SND_SOC_DAPM_LINE("LINE", midas_line_set), + SND_SOC_DAPM_LINE("HDMI", NULL), + SND_SOC_DAPM_LINE("FM In", midas_fm_set), + + SND_SOC_DAPM_MIC("Headset Mic", NULL), + SND_SOC_DAPM_MIC("Main Mic", midas_mic_bias), + SND_SOC_DAPM_MIC("Sub Mic", midas_submic_bias), +}; + +static int midas_set_bias_level(struct snd_soc_card *card, + struct snd_soc_dapm_context *dapm, + enum snd_soc_bias_level level) +{ + struct snd_soc_pcm_runtime *rtd = snd_soc_get_pcm_runtime(card, + &card->dai_link[0]); + struct snd_soc_dai *aif1_dai = asoc_rtd_to_codec(rtd, 0); + + if (dapm->dev != aif1_dai->dev) + return 0; + + switch (level) { + case SND_SOC_BIAS_STANDBY: + return midas_stop_fll1(rtd); + case SND_SOC_BIAS_PREPARE: + return midas_start_fll1(rtd, 0); + default: + break; + } + + return 0; +} + +static int midas_late_probe(struct snd_soc_card *card) +{ + struct snd_soc_pcm_runtime *rtd = snd_soc_get_pcm_runtime(card, + &card->dai_link[0]); + struct snd_soc_dai *aif1_dai = asoc_rtd_to_codec(rtd, 0); + struct midas_priv *priv = snd_soc_card_get_drvdata(card); + int ret; + + /* Use MCLK2 as SYSCLK for boot */ + ret = snd_soc_dai_set_sysclk(aif1_dai, WM8994_SYSCLK_MCLK2, MCLK2_RATE, + SND_SOC_CLOCK_IN); + if (ret < 0) { + dev_err(aif1_dai->dev, "Failed to switch to MCLK2: %d\n", ret); + return ret; + } + + ret = snd_soc_card_jack_new(card, "Headset", + SND_JACK_HEADSET | SND_JACK_MECHANICAL | + SND_JACK_BTN_0 | SND_JACK_BTN_1 | SND_JACK_BTN_2 | + SND_JACK_BTN_3 | SND_JACK_BTN_4 | SND_JACK_BTN_5, + &priv->headset_jack, NULL, 0); + if (ret) + return ret; + + wm8958_mic_detect(aif1_dai->component, &priv->headset_jack, + NULL, NULL, NULL, NULL); + return 0; +} + +static struct snd_soc_dai_driver midas_ext_dai[] = { + { + .name = "Voice call", + .playback = { + .channels_min = 1, + .channels_max = 2, + .rate_min = 8000, + .rate_max = 16000, + .rates = (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_16000), + .formats = SNDRV_PCM_FMTBIT_S16_LE, + }, + .capture = { + .channels_min = 1, + .channels_max = 2, + .rate_min = 8000, + .rate_max = 16000, + .rates = (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_16000), + .formats = SNDRV_PCM_FMTBIT_S16_LE, + }, + }, + { + .name = "Bluetooth", + .playback = { + .channels_min = 1, + .channels_max = 2, + .rate_min = 8000, + .rate_max = 16000, + .rates = (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_16000), + .formats = SNDRV_PCM_FMTBIT_S16_LE, + }, + .capture = { + .channels_min = 1, + .channels_max = 2, + .rate_min = 8000, + .rate_max = 16000, + .rates = (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_16000), + .formats = SNDRV_PCM_FMTBIT_S16_LE, + }, + }, +}; + +static const struct snd_soc_component_driver midas_component = { + .name = "midas-audio", +}; + +SND_SOC_DAILINK_DEFS(wm1811_hifi, + DAILINK_COMP_ARRAY(COMP_EMPTY()), + DAILINK_COMP_ARRAY(COMP_CODEC(NULL, "wm8994-aif1")), + DAILINK_COMP_ARRAY(COMP_EMPTY())); + +SND_SOC_DAILINK_DEFS(wm1811_voice, + DAILINK_COMP_ARRAY(COMP_EMPTY()), + DAILINK_COMP_ARRAY(COMP_CODEC(NULL, "wm8994-aif2")), + DAILINK_COMP_ARRAY(COMP_EMPTY())); + +SND_SOC_DAILINK_DEFS(wm1811_bt, + DAILINK_COMP_ARRAY(COMP_EMPTY()), + DAILINK_COMP_ARRAY(COMP_CODEC(NULL, "wm8994-aif3")), + DAILINK_COMP_ARRAY(COMP_EMPTY())); + +static struct snd_soc_dai_link midas_dai[] = { + { + .name = "WM8994 AIF1", + .stream_name = "HiFi Primary", + .ops = &midas_aif1_ops, + .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | + SND_SOC_DAIFMT_CBM_CFM, + SND_SOC_DAILINK_REG(wm1811_hifi), + }, { + .name = "WM1811 Voice", + .stream_name = "Voice call", + .ignore_suspend = 1, + SND_SOC_DAILINK_REG(wm1811_voice), + }, { + .name = "WM1811 BT", + .stream_name = "Bluetooth", + .ignore_suspend = 1, + SND_SOC_DAILINK_REG(wm1811_bt), + }, +}; + +static struct snd_soc_card midas_card = { + .name = "Midas WM1811", + .owner = THIS_MODULE, + + .dai_link = midas_dai, + .num_links = ARRAY_SIZE(midas_dai), + .controls = midas_controls, + .num_controls = ARRAY_SIZE(midas_controls), + .dapm_widgets = midas_dapm_widgets, + .num_dapm_widgets = ARRAY_SIZE(midas_dapm_widgets), + + .set_bias_level = midas_set_bias_level, + .late_probe = midas_late_probe, +}; + +static int midas_probe(struct platform_device *pdev) +{ + struct device_node *cpu_dai_node = NULL, *codec_dai_node = NULL; + struct device_node *cpu = NULL, *codec = NULL; + struct snd_soc_card *card = &midas_card; + struct device *dev = &pdev->dev; + static struct snd_soc_dai_link *dai_link; + struct midas_priv *priv; + int ret, i; + + priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL); + if (!priv) + return -ENOMEM; + + snd_soc_card_set_drvdata(card, priv); + card->dev = dev; + + priv->reg_mic_bias = devm_regulator_get(dev, "mic-bias"); + if (IS_ERR(priv->reg_mic_bias)) { + dev_err(dev, "Failed to get mic bias regulator\n"); + return PTR_ERR(priv->reg_mic_bias); + } + + priv->reg_submic_bias = devm_regulator_get(dev, "submic-bias"); + if (IS_ERR(priv->reg_submic_bias)) { + dev_err(dev, "Failed to get submic bias regulator\n"); + return PTR_ERR(priv->reg_submic_bias); + } + + priv->gpio_fm_sel = devm_gpiod_get_optional(dev, "fm-sel", GPIOD_OUT_HIGH); + if (IS_ERR(priv->gpio_fm_sel)) { + dev_err(dev, "Failed to get FM selection GPIO\n"); + return PTR_ERR(priv->gpio_fm_sel); + } + + priv->gpio_lineout_sel = devm_gpiod_get_optional(dev, "lineout-sel", + GPIOD_OUT_HIGH); + if (IS_ERR(priv->gpio_lineout_sel)) { + dev_err(dev, "Failed to get line out selection GPIO\n"); + return PTR_ERR(priv->gpio_lineout_sel); + } + + ret = snd_soc_of_parse_card_name(card, "model"); + if (ret < 0) { + dev_err(dev, "Card name is not specified\n"); + return ret; + } + + ret = snd_soc_of_parse_audio_routing(card, "samsung,audio-routing"); + if (ret < 0) { + dev_err(dev, "Audio routing invalid/unspecified\n"); + return ret; + } + + cpu = of_get_child_by_name(dev->of_node, "cpu"); + if (!cpu) + return -EINVAL; + + codec = of_get_child_by_name(dev->of_node, "codec"); + if (!codec) { + of_node_put(cpu); + return -EINVAL; + } + + cpu_dai_node = of_parse_phandle(cpu, "sound-dai", 0); + of_node_put(cpu); + if (!cpu_dai_node) { + dev_err(dev, "parsing cpu/sound-dai failed\n"); + of_node_put(codec); + return -EINVAL; + } + + codec_dai_node = of_parse_phandle(codec, "sound-dai", 0); + of_node_put(codec); + if (!codec_dai_node) { + dev_err(dev, "audio-codec property invalid/missing\n"); + ret = -EINVAL; + goto put_cpu_dai_node; + } + + for_each_card_prelinks(card, i, dai_link) { + dai_link->codecs->of_node = codec_dai_node; + dai_link->cpus->of_node = cpu_dai_node; + dai_link->platforms->of_node = cpu_dai_node; + } + + ret = devm_snd_soc_register_component(dev, &midas_component, + midas_ext_dai, ARRAY_SIZE(midas_ext_dai)); + if (ret < 0) { + dev_err(dev, "Failed to register component: %d\n", ret); + goto put_codec_dai_node; + } + + ret = devm_snd_soc_register_card(dev, card); + if (ret < 0) { + dev_err(dev, "Failed to register card: %d\n", ret); + goto put_codec_dai_node; + } + + return 0; + +put_codec_dai_node: + of_node_put(codec_dai_node); +put_cpu_dai_node: + of_node_put(cpu_dai_node); + return ret; +} + +static const struct of_device_id midas_of_match[] = { + { .compatible = "samsung,midas-audio" }, + { }, +}; +MODULE_DEVICE_TABLE(of, midas_of_match); + +static struct platform_driver midas_driver = { + .driver = { + .name = "midas-audio", + .of_match_table = midas_of_match, + .owner = THIS_MODULE, + .pm = &snd_soc_pm_ops, + }, + .probe = midas_probe, +}; +module_platform_driver(midas_driver); + +MODULE_AUTHOR("Simon Shields <simon@lineageos.org>"); +MODULE_DESCRIPTION("ASoC support for Midas"); +MODULE_LICENSE("GPL v2"); |