2020-07-28 06:11:10 -07:00
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// SPDX-License-Identifier: GPL-2.0+
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//
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// Midas audio support
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//
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// Copyright (C) 2018 Simon Shields <simon@lineageos.org>
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// Copyright (C) 2020 Samsung Electronics Co., Ltd.
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#include <linux/clk.h>
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2022-02-02 12:13:22 -07:00
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#include <linux/gpio/consumer.h>
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2024-05-25 06:28:09 -07:00
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#include <linux/iio/consumer.h>
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2020-07-28 06:11:10 -07:00
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#include <linux/mfd/wm8994/registers.h>
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2024-05-25 06:28:09 -07:00
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#include <linux/input-event-codes.h>
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2020-07-28 06:11:10 -07:00
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#include <linux/module.h>
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#include <linux/of.h>
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#include <sound/jack.h>
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#include <sound/soc.h>
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#include <sound/soc-dapm.h>
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#include "i2s.h"
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#include "../codecs/wm8994.h"
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/*
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* The MCLK1 clock source is XCLKOUT with its mux set to the external fixed rate
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* oscillator (XXTI).
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*/
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#define MCLK1_RATE 24000000U
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#define MCLK2_RATE 32768U
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#define DEFAULT_FLL1_RATE 11289600U
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struct midas_priv {
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struct gpio_desc *gpio_fm_sel;
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struct gpio_desc *gpio_lineout_sel;
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2024-05-25 06:28:09 -07:00
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struct gpio_desc *gpio_headset_detect;
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struct gpio_desc *gpio_headset_key;
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struct iio_channel *adc_headset_detect;
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2020-07-28 06:11:10 -07:00
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unsigned int fll1_rate;
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struct snd_soc_jack headset_jack;
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};
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2023-08-02 10:57:37 -07:00
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static struct snd_soc_jack_pin headset_jack_pins[] = {
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{
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.pin = "Headphone",
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.mask = SND_JACK_HEADPHONE,
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},
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{
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.pin = "Headset Mic",
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.mask = SND_JACK_MICROPHONE,
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},
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};
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2024-05-25 06:28:09 -07:00
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/*
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* min_mv/max_mv values in this struct are set up based on DT values.
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*/
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static struct snd_soc_jack_zone headset_jack_zones[] = {
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{ .jack_type = SND_JACK_HEADPHONE, },
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{ .jack_type = SND_JACK_HEADSET, },
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{ .jack_type = SND_JACK_HEADPHONE, },
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};
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/*
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* This is used for manual detection in headset_key_check, we reuse the
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* structure since it's convenient.
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*
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* min_mv/max_mv values in this struct are set up based on DT values.
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*/
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static struct snd_soc_jack_zone headset_key_zones[] = {
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{ .jack_type = SND_JACK_BTN_0, }, /* Media */
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{ .jack_type = SND_JACK_BTN_1, }, /* Volume Up */
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{ .jack_type = SND_JACK_BTN_2, }, /* Volume Down */
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};
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static int headset_jack_check(void *data)
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{
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struct snd_soc_component *codec = data;
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struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(codec);
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struct midas_priv *priv = snd_soc_card_get_drvdata(codec->card);
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int adc, ret;
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int jack_type = 0;
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if (!gpiod_get_value_cansleep(priv->gpio_headset_detect))
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return 0;
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/* Enable headset mic bias regulator so that the ADC reading works */
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ret = snd_soc_dapm_force_enable_pin(dapm, "headset-mic-bias");
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if (ret < 0) {
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pr_err("%s: Failed to enable headset mic bias regulator (%d), assuming headphones\n",
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__func__, ret);
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return SND_JACK_HEADPHONE;
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}
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snd_soc_dapm_sync(dapm);
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/* Sleep for a small amount of time to get the value to stabilize */
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msleep(20);
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ret = iio_read_channel_processed(priv->adc_headset_detect, &adc);
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if (ret) {
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pr_err("%s: Failed to read ADC (%d), assuming headphones\n",
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__func__, ret);
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jack_type = SND_JACK_HEADPHONE;
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goto out;
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}
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pr_debug("%s: ADC value is %d\n", __func__, adc);
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jack_type = snd_soc_jack_get_type(&priv->headset_jack, adc);
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out:
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ret = snd_soc_dapm_disable_pin(dapm, "headset-mic-bias");
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if (ret < 0)
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pr_err("%s: Failed to disable headset mic bias regulator (%d)\n",
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__func__, ret);
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snd_soc_dapm_sync(dapm);
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return jack_type;
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}
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static int headset_key_check(void *data)
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{
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struct snd_soc_component *codec = data;
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struct midas_priv *priv = snd_soc_card_get_drvdata(codec->card);
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int adc, i, ret;
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if (!gpiod_get_value_cansleep(priv->gpio_headset_key))
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return 0;
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/* Filter out keypresses when 4 pole jack not detected */
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if (!(priv->headset_jack.status & SND_JACK_MICROPHONE))
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return 0;
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ret = iio_read_channel_processed(priv->adc_headset_detect, &adc);
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if (ret) {
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pr_err("%s: Failed to read ADC (%d), can't detect key type\n",
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__func__, ret);
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return 0;
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}
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pr_debug("%s: ADC value is %d\n", __func__, adc);
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for (i = 0; i < ARRAY_SIZE(headset_key_zones); i++) {
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if (adc >= headset_key_zones[i].min_mv &&
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adc <= headset_key_zones[i].max_mv) {
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return headset_key_zones[i].jack_type;
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}
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}
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return 0;
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}
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static struct snd_soc_jack_gpio headset_gpio[] = {
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{
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.name = "Headset Jack",
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.report = SND_JACK_HEADSET,
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.debounce_time = 150,
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.jack_status_check = headset_jack_check,
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},
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{
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.name = "Headset Key",
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.report = SND_JACK_BTN_0 | SND_JACK_BTN_1 | SND_JACK_BTN_2,
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.debounce_time = 30,
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.jack_status_check = headset_key_check,
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},
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};
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2020-07-28 06:11:10 -07:00
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static int midas_start_fll1(struct snd_soc_pcm_runtime *rtd, unsigned int rate)
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{
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struct snd_soc_card *card = rtd->card;
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struct midas_priv *priv = snd_soc_card_get_drvdata(card);
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2023-09-11 16:49:45 -07:00
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struct snd_soc_dai *aif1_dai = snd_soc_rtd_to_codec(rtd, 0);
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struct snd_soc_dai *cpu_dai = snd_soc_rtd_to_cpu(rtd, 0);
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2020-07-28 06:11:10 -07:00
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int ret;
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if (!rate)
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rate = priv->fll1_rate;
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/*
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* If no new rate is requested, set FLL1 to a sane default for jack
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* detection.
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*/
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if (!rate)
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rate = DEFAULT_FLL1_RATE;
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if (rate != priv->fll1_rate && priv->fll1_rate) {
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/* while reconfiguring, switch to MCLK2 for SYSCLK */
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ret = snd_soc_dai_set_sysclk(aif1_dai, WM8994_SYSCLK_MCLK2,
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MCLK2_RATE, SND_SOC_CLOCK_IN);
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if (ret < 0) {
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dev_err(card->dev, "Unable to switch to MCLK2: %d\n", ret);
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return ret;
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}
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}
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ret = snd_soc_dai_set_pll(aif1_dai, WM8994_FLL1, WM8994_FLL_SRC_MCLK1,
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MCLK1_RATE, rate);
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if (ret < 0) {
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dev_err(card->dev, "Failed to set FLL1 rate: %d\n", ret);
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return ret;
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}
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priv->fll1_rate = rate;
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ret = snd_soc_dai_set_sysclk(aif1_dai, WM8994_SYSCLK_FLL1,
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priv->fll1_rate, SND_SOC_CLOCK_IN);
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if (ret < 0) {
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dev_err(card->dev, "Failed to set SYSCLK source: %d\n", ret);
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return ret;
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}
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ret = snd_soc_dai_set_sysclk(cpu_dai, SAMSUNG_I2S_OPCLK, 0,
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SAMSUNG_I2S_OPCLK_PCLK);
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if (ret < 0) {
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dev_err(card->dev, "Failed to set OPCLK source: %d\n", ret);
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return ret;
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}
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return 0;
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}
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static int midas_stop_fll1(struct snd_soc_pcm_runtime *rtd)
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{
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struct snd_soc_card *card = rtd->card;
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struct midas_priv *priv = snd_soc_card_get_drvdata(card);
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2023-09-11 16:49:45 -07:00
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struct snd_soc_dai *aif1_dai = snd_soc_rtd_to_codec(rtd, 0);
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2020-07-28 06:11:10 -07:00
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int ret;
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ret = snd_soc_dai_set_sysclk(aif1_dai, WM8994_SYSCLK_MCLK2,
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MCLK2_RATE, SND_SOC_CLOCK_IN);
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if (ret < 0) {
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dev_err(card->dev, "Unable to switch to MCLK2: %d\n", ret);
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return ret;
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}
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ret = snd_soc_dai_set_pll(aif1_dai, WM8994_FLL1, 0, 0, 0);
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if (ret < 0) {
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dev_err(card->dev, "Unable to stop FLL1: %d\n", ret);
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return ret;
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}
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priv->fll1_rate = 0;
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return 0;
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}
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static int midas_aif1_hw_params(struct snd_pcm_substream *substream,
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struct snd_pcm_hw_params *params)
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{
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2024-04-30 07:02:21 -07:00
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struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream);
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2020-07-28 06:11:10 -07:00
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unsigned int pll_out;
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/* AIF1CLK should be at least 3MHz for "optimal performance" */
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if (params_rate(params) == 8000 || params_rate(params) == 11025)
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pll_out = params_rate(params) * 512;
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else
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pll_out = params_rate(params) * 256;
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return midas_start_fll1(rtd, pll_out);
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}
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2021-07-28 10:25:48 -07:00
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static const struct snd_soc_ops midas_aif1_ops = {
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2020-07-28 06:11:10 -07:00
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.hw_params = midas_aif1_hw_params,
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};
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/*
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* We only have a single external speaker, so mix stereo data
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* to a single mono stream.
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*/
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static int midas_ext_spkmode(struct snd_soc_dapm_widget *w,
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struct snd_kcontrol *kcontrol, int event)
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{
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struct snd_soc_component *codec = snd_soc_dapm_to_component(w->dapm);
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int ret = 0;
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switch (event) {
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case SND_SOC_DAPM_PRE_PMU:
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ret = snd_soc_component_update_bits(codec, WM8994_SPKOUT_MIXERS,
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WM8994_SPKMIXR_TO_SPKOUTL_MASK,
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WM8994_SPKMIXR_TO_SPKOUTL);
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break;
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case SND_SOC_DAPM_POST_PMD:
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ret = snd_soc_component_update_bits(codec, WM8994_SPKOUT_MIXERS,
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WM8994_SPKMIXR_TO_SPKOUTL_MASK,
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0);
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break;
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}
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return ret;
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}
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static int midas_fm_set(struct snd_soc_dapm_widget *w,
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struct snd_kcontrol *kcontrol, int event)
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{
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struct snd_soc_card *card = w->dapm->card;
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struct midas_priv *priv = snd_soc_card_get_drvdata(card);
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if (!priv->gpio_fm_sel)
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return 0;
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switch (event) {
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case SND_SOC_DAPM_PRE_PMU:
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gpiod_set_value_cansleep(priv->gpio_fm_sel, 1);
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break;
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case SND_SOC_DAPM_POST_PMD:
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gpiod_set_value_cansleep(priv->gpio_fm_sel, 0);
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break;
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|
|
|
}
|
|
|
|
|
|
|
|
|
|
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),
|
|
|
|
|
|
2023-08-02 10:57:37 -07:00
|
|
|
|
SND_SOC_DAPM_HP("Headphone", NULL),
|
2020-07-28 06:11:10 -07:00
|
|
|
|
SND_SOC_DAPM_MIC("Headset Mic", NULL),
|
2024-05-25 06:28:08 -07:00
|
|
|
|
SND_SOC_DAPM_REGULATOR_SUPPLY("headset-mic-bias", 0, 0),
|
2024-05-25 06:28:07 -07:00
|
|
|
|
SND_SOC_DAPM_MIC("Main Mic", NULL),
|
|
|
|
|
SND_SOC_DAPM_REGULATOR_SUPPLY("mic-bias", 0, 0),
|
|
|
|
|
SND_SOC_DAPM_MIC("Sub Mic", NULL),
|
|
|
|
|
SND_SOC_DAPM_REGULATOR_SUPPLY("submic-bias", 0, 0),
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
/* Default routing; supplemented by audio-routing DT property */
|
|
|
|
|
static const struct snd_soc_dapm_route midas_dapm_routes[] = {
|
|
|
|
|
/* Bind microphones with their respective regulator supplies */
|
|
|
|
|
{"Main Mic", NULL, "mic-bias"},
|
|
|
|
|
{"Sub Mic", NULL, "submic-bias"},
|
2024-05-25 06:28:08 -07:00
|
|
|
|
{"Headset Mic", NULL, "headset-mic-bias"},
|
2020-07-28 06:11:10 -07:00
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
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]);
|
2023-09-11 16:49:45 -07:00
|
|
|
|
struct snd_soc_dai *aif1_dai = snd_soc_rtd_to_codec(rtd, 0);
|
2020-07-28 06:11:10 -07:00
|
|
|
|
|
|
|
|
|
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]);
|
2023-09-11 16:49:45 -07:00
|
|
|
|
struct snd_soc_dai *aif1_dai = snd_soc_rtd_to_codec(rtd, 0);
|
2020-07-28 06:11:10 -07:00
|
|
|
|
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;
|
|
|
|
|
}
|
|
|
|
|
|
2024-05-25 06:28:09 -07:00
|
|
|
|
if (!priv->gpio_headset_detect) {
|
|
|
|
|
ret = snd_soc_card_jack_new_pins(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,
|
|
|
|
|
headset_jack_pins,
|
|
|
|
|
ARRAY_SIZE(headset_jack_pins));
|
|
|
|
|
if (ret)
|
|
|
|
|
return ret;
|
|
|
|
|
|
|
|
|
|
wm8958_mic_detect(aif1_dai->component, &priv->headset_jack,
|
|
|
|
|
NULL, NULL, NULL, NULL);
|
|
|
|
|
} else {
|
|
|
|
|
/* Some devices (n8000, t310) use a GPIO to detect the jack. */
|
|
|
|
|
ret = snd_soc_card_jack_new_pins(card, "Headset",
|
|
|
|
|
SND_JACK_HEADSET | SND_JACK_BTN_0 |
|
|
|
|
|
SND_JACK_BTN_1 | SND_JACK_BTN_2,
|
|
|
|
|
&priv->headset_jack,
|
|
|
|
|
headset_jack_pins,
|
|
|
|
|
ARRAY_SIZE(headset_jack_pins));
|
|
|
|
|
if (ret) {
|
|
|
|
|
dev_err(card->dev,
|
|
|
|
|
"Failed to set up headset pins: %d\n", ret);
|
|
|
|
|
return ret;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
ret = snd_soc_jack_add_zones(&priv->headset_jack,
|
|
|
|
|
ARRAY_SIZE(headset_jack_zones),
|
|
|
|
|
headset_jack_zones);
|
|
|
|
|
if (ret) {
|
|
|
|
|
dev_err(card->dev,
|
|
|
|
|
"Failed to set up headset zones: %d\n", ret);
|
|
|
|
|
return ret;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
headset_gpio[0].data = aif1_dai->component;
|
|
|
|
|
headset_gpio[0].desc = priv->gpio_headset_detect;
|
|
|
|
|
|
|
|
|
|
headset_gpio[1].data = aif1_dai->component;
|
|
|
|
|
headset_gpio[1].desc = priv->gpio_headset_key;
|
|
|
|
|
|
|
|
|
|
snd_jack_set_key(priv->headset_jack.jack,
|
|
|
|
|
SND_JACK_BTN_0, KEY_MEDIA);
|
|
|
|
|
snd_jack_set_key(priv->headset_jack.jack,
|
|
|
|
|
SND_JACK_BTN_1, KEY_VOLUMEUP);
|
|
|
|
|
snd_jack_set_key(priv->headset_jack.jack,
|
|
|
|
|
SND_JACK_BTN_2, KEY_VOLUMEDOWN);
|
|
|
|
|
|
|
|
|
|
ret = snd_soc_jack_add_gpios(&priv->headset_jack,
|
|
|
|
|
ARRAY_SIZE(headset_gpio),
|
|
|
|
|
headset_gpio);
|
|
|
|
|
if (ret)
|
|
|
|
|
dev_err(card->dev,
|
|
|
|
|
"Failed to set up headset jack GPIOs: %d\n",
|
|
|
|
|
ret);
|
|
|
|
|
|
2020-07-28 06:11:10 -07:00
|
|
|
|
return ret;
|
2024-05-25 06:28:09 -07:00
|
|
|
|
}
|
2020-07-28 06:11:10 -07:00
|
|
|
|
|
|
|
|
|
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),
|
2024-05-25 06:28:07 -07:00
|
|
|
|
.dapm_routes = midas_dapm_routes,
|
|
|
|
|
.num_dapm_routes = ARRAY_SIZE(midas_dapm_routes),
|
2020-07-28 06:11:10 -07:00
|
|
|
|
|
|
|
|
|
.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;
|
2024-05-25 06:28:09 -07:00
|
|
|
|
enum iio_chan_type channel_type;
|
|
|
|
|
u32 fourpole_threshold[2];
|
|
|
|
|
u32 button_threshold[3];
|
2020-07-28 06:11:10 -07:00
|
|
|
|
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->gpio_fm_sel = devm_gpiod_get_optional(dev, "fm-sel", GPIOD_OUT_HIGH);
|
2024-05-25 06:28:10 -07:00
|
|
|
|
if (IS_ERR(priv->gpio_fm_sel))
|
|
|
|
|
return dev_err_probe(dev, PTR_ERR(priv->gpio_fm_sel),
|
|
|
|
|
"Failed to get FM selection GPIO\n");
|
2020-07-28 06:11:10 -07:00
|
|
|
|
|
|
|
|
|
priv->gpio_lineout_sel = devm_gpiod_get_optional(dev, "lineout-sel",
|
|
|
|
|
GPIOD_OUT_HIGH);
|
2024-05-25 06:28:10 -07:00
|
|
|
|
if (IS_ERR(priv->gpio_lineout_sel))
|
|
|
|
|
return dev_err_probe(dev, PTR_ERR(priv->gpio_lineout_sel),
|
|
|
|
|
"Failed to get line out selection GPIO\n");
|
2020-07-28 06:11:10 -07:00
|
|
|
|
|
2024-05-25 06:28:09 -07:00
|
|
|
|
priv->gpio_headset_detect = devm_gpiod_get_optional(dev,
|
|
|
|
|
"headset-detect", GPIOD_IN);
|
|
|
|
|
if (IS_ERR(priv->gpio_headset_detect))
|
|
|
|
|
return dev_err_probe(dev, PTR_ERR(priv->gpio_headset_detect),
|
|
|
|
|
"Failed to get headset jack detect GPIO\n");
|
|
|
|
|
|
|
|
|
|
if (priv->gpio_headset_detect) {
|
|
|
|
|
priv->adc_headset_detect = devm_iio_channel_get(dev,
|
|
|
|
|
"headset-detect");
|
|
|
|
|
if (IS_ERR(priv->adc_headset_detect))
|
|
|
|
|
return dev_err_probe(dev,
|
|
|
|
|
PTR_ERR(priv->adc_headset_detect),
|
|
|
|
|
"Failed to get ADC channel\n");
|
|
|
|
|
|
|
|
|
|
ret = iio_get_channel_type(priv->adc_headset_detect,
|
|
|
|
|
&channel_type);
|
|
|
|
|
if (ret) {
|
|
|
|
|
dev_err(dev, "Failed to get ADC channel type\n");
|
|
|
|
|
return ret;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if (channel_type != IIO_VOLTAGE) {
|
|
|
|
|
dev_err(dev, "ADC channel is not voltage\n");
|
2024-06-08 07:24:31 -07:00
|
|
|
|
return -EINVAL;
|
2024-05-25 06:28:09 -07:00
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
priv->gpio_headset_key = devm_gpiod_get(dev, "headset-key",
|
|
|
|
|
GPIOD_IN);
|
|
|
|
|
if (IS_ERR(priv->gpio_headset_key))
|
|
|
|
|
return dev_err_probe(dev,
|
|
|
|
|
PTR_ERR(priv->gpio_headset_key),
|
|
|
|
|
"Failed to get headset key GPIO\n");
|
|
|
|
|
|
|
|
|
|
ret = of_property_read_u32_array(dev->of_node,
|
|
|
|
|
"samsung,headset-4pole-threshold-microvolt",
|
|
|
|
|
fourpole_threshold,
|
|
|
|
|
ARRAY_SIZE(fourpole_threshold));
|
|
|
|
|
if (ret) {
|
|
|
|
|
dev_err(dev, "Failed to get 4-pole jack detection threshold\n");
|
|
|
|
|
return ret;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if (fourpole_threshold[0] > fourpole_threshold[1]) {
|
|
|
|
|
dev_err(dev, "Invalid 4-pole jack detection threshold value\n");
|
|
|
|
|
return -EINVAL;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
headset_jack_zones[0].max_mv = (fourpole_threshold[0]);
|
|
|
|
|
headset_jack_zones[1].min_mv = (fourpole_threshold[0] + 1);
|
|
|
|
|
|
|
|
|
|
headset_jack_zones[1].max_mv = (fourpole_threshold[1]);
|
|
|
|
|
headset_jack_zones[2].min_mv = (fourpole_threshold[1] + 1);
|
|
|
|
|
|
|
|
|
|
ret = of_property_read_u32_array(dev->of_node,
|
|
|
|
|
"samsung,headset-button-threshold-microvolt",
|
|
|
|
|
button_threshold,
|
|
|
|
|
ARRAY_SIZE(button_threshold));
|
|
|
|
|
if (ret) {
|
|
|
|
|
dev_err(dev, "Failed to get headset button detection threshold\n");
|
|
|
|
|
return ret;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if (button_threshold[0] > button_threshold[1] ||
|
|
|
|
|
button_threshold[1] > button_threshold[2]) {
|
|
|
|
|
dev_err(dev, "Invalid headset button detection threshold value\n");
|
|
|
|
|
return -EINVAL;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
for (i = 0; i < 3; i++) {
|
|
|
|
|
if (i != 0 && button_threshold[i] <= 0) {
|
|
|
|
|
dev_err(dev, "Invalid headset button detection threshold value\n");
|
|
|
|
|
return -EINVAL;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
headset_key_zones[i].min_mv = button_threshold[i];
|
|
|
|
|
|
|
|
|
|
if (i == 2)
|
|
|
|
|
headset_key_zones[i].max_mv = UINT_MAX;
|
|
|
|
|
else
|
|
|
|
|
headset_key_zones[i].max_mv = \
|
|
|
|
|
(button_threshold[i+1] - 1);
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
2020-07-28 06:11:10 -07:00
|
|
|
|
ret = snd_soc_of_parse_card_name(card, "model");
|
|
|
|
|
if (ret < 0) {
|
|
|
|
|
dev_err(dev, "Card name is not specified\n");
|
|
|
|
|
return ret;
|
|
|
|
|
}
|
|
|
|
|
|
2023-08-09 23:32:57 -07:00
|
|
|
|
ret = snd_soc_of_parse_audio_routing(card, "audio-routing");
|
2020-07-28 06:11:10 -07:00
|
|
|
|
if (ret < 0) {
|
2023-08-09 23:32:57 -07:00
|
|
|
|
/* Backwards compatible way */
|
|
|
|
|
ret = snd_soc_of_parse_audio_routing(card, "samsung,audio-routing");
|
|
|
|
|
if (ret < 0) {
|
|
|
|
|
dev_err(dev, "Audio routing invalid/unspecified\n");
|
|
|
|
|
return ret;
|
|
|
|
|
}
|
2020-07-28 06:11:10 -07:00
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
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,
|
|
|
|
|
.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");
|