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224 lines
5.4 KiB
224 lines
5.4 KiB
// SPDX-License-Identifier: GPL-2.0+ |
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// |
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// Copyright 2010 Maurus Cuelenaere <[email protected]> |
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// |
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// Based on smdk6410_wm8987.c |
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// Copyright 2007 Wolfson Microelectronics PLC. - [email protected] |
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// Graeme Gregory - [email protected] |
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#include <linux/gpio/consumer.h> |
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#include <linux/module.h> |
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#include <sound/soc.h> |
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#include <sound/jack.h> |
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#include "i2s.h" |
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#include "../codecs/wm8750.h" |
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/* |
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* WM8987 is register compatible with WM8750, so using that as base driver. |
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*/ |
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static struct snd_soc_card snd_soc_smartq; |
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static int smartq_hifi_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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struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream); |
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struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0); |
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struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0); |
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unsigned int clk = 0; |
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int ret; |
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switch (params_rate(params)) { |
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case 8000: |
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case 16000: |
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case 32000: |
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case 48000: |
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case 96000: |
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clk = 12288000; |
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break; |
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case 11025: |
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case 22050: |
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case 44100: |
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case 88200: |
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clk = 11289600; |
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break; |
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} |
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/* Use PCLK for I2S signal generation */ |
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ret = snd_soc_dai_set_sysclk(cpu_dai, SAMSUNG_I2S_RCLKSRC_0, |
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0, SND_SOC_CLOCK_IN); |
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if (ret < 0) |
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return ret; |
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/* Gate the RCLK output on PAD */ |
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ret = snd_soc_dai_set_sysclk(cpu_dai, SAMSUNG_I2S_CDCLK, |
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0, SND_SOC_CLOCK_IN); |
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if (ret < 0) |
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return ret; |
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/* set the codec system clock for DAC and ADC */ |
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ret = snd_soc_dai_set_sysclk(codec_dai, WM8750_SYSCLK, clk, |
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SND_SOC_CLOCK_IN); |
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if (ret < 0) |
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return ret; |
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return 0; |
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} |
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/* |
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* SmartQ WM8987 HiFi DAI operations. |
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*/ |
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static const struct snd_soc_ops smartq_hifi_ops = { |
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.hw_params = smartq_hifi_hw_params, |
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}; |
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static struct snd_soc_jack smartq_jack; |
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static struct snd_soc_jack_pin smartq_jack_pins[] = { |
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/* Disable speaker when headphone is plugged in */ |
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{ |
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.pin = "Internal Speaker", |
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.mask = SND_JACK_HEADPHONE, |
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}, |
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}; |
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static struct snd_soc_jack_gpio smartq_jack_gpios[] = { |
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{ |
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.gpio = -1, |
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.name = "headphone detect", |
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.report = SND_JACK_HEADPHONE, |
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.debounce_time = 200, |
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}, |
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}; |
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static const struct snd_kcontrol_new wm8987_smartq_controls[] = { |
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SOC_DAPM_PIN_SWITCH("Internal Speaker"), |
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SOC_DAPM_PIN_SWITCH("Headphone Jack"), |
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SOC_DAPM_PIN_SWITCH("Internal Mic"), |
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}; |
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static int smartq_speaker_event(struct snd_soc_dapm_widget *w, |
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struct snd_kcontrol *k, |
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int event) |
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{ |
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struct gpio_desc *gpio = snd_soc_card_get_drvdata(&snd_soc_smartq); |
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gpiod_set_value(gpio, SND_SOC_DAPM_EVENT_OFF(event)); |
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return 0; |
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} |
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static const struct snd_soc_dapm_widget wm8987_dapm_widgets[] = { |
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SND_SOC_DAPM_SPK("Internal Speaker", smartq_speaker_event), |
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SND_SOC_DAPM_HP("Headphone Jack", NULL), |
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SND_SOC_DAPM_MIC("Internal Mic", NULL), |
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}; |
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static const struct snd_soc_dapm_route audio_map[] = { |
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{"Headphone Jack", NULL, "LOUT2"}, |
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{"Headphone Jack", NULL, "ROUT2"}, |
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{"Internal Speaker", NULL, "LOUT2"}, |
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{"Internal Speaker", NULL, "ROUT2"}, |
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{"Mic Bias", NULL, "Internal Mic"}, |
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{"LINPUT2", NULL, "Mic Bias"}, |
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}; |
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static int smartq_wm8987_init(struct snd_soc_pcm_runtime *rtd) |
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{ |
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struct snd_soc_dapm_context *dapm = &rtd->card->dapm; |
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int err = 0; |
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/* set endpoints to not connected */ |
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snd_soc_dapm_nc_pin(dapm, "LINPUT1"); |
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snd_soc_dapm_nc_pin(dapm, "RINPUT1"); |
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snd_soc_dapm_nc_pin(dapm, "OUT3"); |
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snd_soc_dapm_nc_pin(dapm, "ROUT1"); |
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/* Headphone jack detection */ |
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err = snd_soc_card_jack_new_pins(rtd->card, "Headphone Jack", |
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SND_JACK_HEADPHONE, &smartq_jack, |
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smartq_jack_pins, |
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ARRAY_SIZE(smartq_jack_pins)); |
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if (err) |
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return err; |
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err = snd_soc_jack_add_gpios(&smartq_jack, |
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ARRAY_SIZE(smartq_jack_gpios), |
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smartq_jack_gpios); |
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return err; |
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} |
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SND_SOC_DAILINK_DEFS(wm8987, |
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DAILINK_COMP_ARRAY(COMP_CPU("samsung-i2s.0")), |
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DAILINK_COMP_ARRAY(COMP_CODEC("wm8750.0-0x1a", "wm8750-hifi")), |
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DAILINK_COMP_ARRAY(COMP_PLATFORM("samsung-i2s.0"))); |
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static struct snd_soc_dai_link smartq_dai[] = { |
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{ |
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.name = "wm8987", |
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.stream_name = "SmartQ Hi-Fi", |
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.init = smartq_wm8987_init, |
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.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | |
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SND_SOC_DAIFMT_CBS_CFS, |
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.ops = &smartq_hifi_ops, |
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SND_SOC_DAILINK_REG(wm8987), |
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}, |
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}; |
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static struct snd_soc_card snd_soc_smartq = { |
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.name = "SmartQ", |
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.owner = THIS_MODULE, |
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.dai_link = smartq_dai, |
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.num_links = ARRAY_SIZE(smartq_dai), |
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.dapm_widgets = wm8987_dapm_widgets, |
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.num_dapm_widgets = ARRAY_SIZE(wm8987_dapm_widgets), |
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.dapm_routes = audio_map, |
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.num_dapm_routes = ARRAY_SIZE(audio_map), |
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.controls = wm8987_smartq_controls, |
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.num_controls = ARRAY_SIZE(wm8987_smartq_controls), |
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}; |
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static int smartq_probe(struct platform_device *pdev) |
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{ |
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struct gpio_desc *gpio; |
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int ret; |
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platform_set_drvdata(pdev, &snd_soc_smartq); |
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/* Initialise GPIOs used by amplifiers */ |
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gpio = devm_gpiod_get(&pdev->dev, "amplifiers shutdown", |
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GPIOD_OUT_HIGH); |
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if (IS_ERR(gpio)) { |
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dev_err(&pdev->dev, "Failed to register GPK12\n"); |
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ret = PTR_ERR(gpio); |
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goto out; |
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} |
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snd_soc_card_set_drvdata(&snd_soc_smartq, gpio); |
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ret = devm_snd_soc_register_card(&pdev->dev, &snd_soc_smartq); |
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if (ret) |
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dev_err(&pdev->dev, "Failed to register card\n"); |
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out: |
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return ret; |
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} |
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static struct platform_driver smartq_driver = { |
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.driver = { |
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.name = "smartq-audio", |
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}, |
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.probe = smartq_probe, |
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}; |
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module_platform_driver(smartq_driver); |
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/* Module information */ |
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MODULE_AUTHOR("Maurus Cuelenaere <[email protected]>"); |
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MODULE_DESCRIPTION("ALSA SoC SmartQ WM8987"); |
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MODULE_LICENSE("GPL");
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