356 lines
8.7 KiB
C
356 lines
8.7 KiB
C
/*
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* Speyside audio support
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*
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* Copyright 2011 Wolfson Microelectronics
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; either version 2 of the License, or (at your
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* option) any later version.
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*/
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#include <sound/soc.h>
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#include <sound/soc-dapm.h>
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#include <sound/jack.h>
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#include <linux/gpio.h>
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#include <linux/module.h>
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#include "../codecs/wm8996.h"
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#include "../codecs/wm9081.h"
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#define WM8996_HPSEL_GPIO 214
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#define MCLK_AUDIO_RATE (512 * 48000)
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static int speyside_set_bias_level(struct snd_soc_card *card,
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struct snd_soc_dapm_context *dapm,
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enum snd_soc_bias_level level)
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{
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struct snd_soc_pcm_runtime *rtd;
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struct snd_soc_dai *codec_dai;
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int ret;
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rtd = snd_soc_get_pcm_runtime(card, card->dai_link[1].name);
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codec_dai = rtd->codec_dai;
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if (dapm->dev != codec_dai->dev)
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return 0;
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switch (level) {
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case SND_SOC_BIAS_STANDBY:
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ret = snd_soc_dai_set_sysclk(codec_dai, WM8996_SYSCLK_MCLK2,
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32768, SND_SOC_CLOCK_IN);
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if (ret < 0)
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return ret;
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ret = snd_soc_dai_set_pll(codec_dai, WM8996_FLL_MCLK2,
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0, 0, 0);
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if (ret < 0) {
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pr_err("Failed to stop FLL\n");
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return ret;
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}
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break;
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default:
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break;
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}
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return 0;
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}
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static int speyside_set_bias_level_post(struct snd_soc_card *card,
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struct snd_soc_dapm_context *dapm,
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enum snd_soc_bias_level level)
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{
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struct snd_soc_pcm_runtime *rtd;
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struct snd_soc_dai *codec_dai;
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int ret;
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rtd = snd_soc_get_pcm_runtime(card, card->dai_link[1].name);
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codec_dai = rtd->codec_dai;
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if (dapm->dev != codec_dai->dev)
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return 0;
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switch (level) {
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case SND_SOC_BIAS_PREPARE:
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if (card->dapm.bias_level == SND_SOC_BIAS_STANDBY) {
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ret = snd_soc_dai_set_pll(codec_dai, 0,
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WM8996_FLL_MCLK2,
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32768, MCLK_AUDIO_RATE);
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if (ret < 0) {
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pr_err("Failed to start FLL\n");
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return ret;
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}
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ret = snd_soc_dai_set_sysclk(codec_dai,
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WM8996_SYSCLK_FLL,
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MCLK_AUDIO_RATE,
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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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}
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break;
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default:
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break;
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}
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card->dapm.bias_level = level;
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return 0;
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}
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static struct snd_soc_jack speyside_headset;
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/* Headset jack detection DAPM pins */
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static struct snd_soc_jack_pin speyside_headset_pins[] = {
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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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/* Default the headphone selection to active high */
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static int speyside_jack_polarity;
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static int speyside_get_micbias(struct snd_soc_dapm_widget *source,
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struct snd_soc_dapm_widget *sink)
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{
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if (speyside_jack_polarity && (strcmp(source->name, "MICB1") == 0))
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return 1;
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if (!speyside_jack_polarity && (strcmp(source->name, "MICB2") == 0))
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return 1;
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return 0;
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}
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static void speyside_set_polarity(struct snd_soc_codec *codec,
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int polarity)
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{
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speyside_jack_polarity = !polarity;
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gpio_direction_output(WM8996_HPSEL_GPIO, speyside_jack_polarity);
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/* Re-run DAPM to make sure we're using the correct mic bias */
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snd_soc_dapm_sync(snd_soc_codec_get_dapm(codec));
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}
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static int speyside_wm0010_init(struct snd_soc_pcm_runtime *rtd)
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{
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struct snd_soc_dai *dai = rtd->codec_dai;
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int ret;
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ret = snd_soc_dai_set_sysclk(dai, 0, MCLK_AUDIO_RATE, 0);
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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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static int speyside_wm8996_init(struct snd_soc_pcm_runtime *rtd)
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{
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struct snd_soc_dai *dai = rtd->codec_dai;
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struct snd_soc_codec *codec = rtd->codec;
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int ret;
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ret = snd_soc_dai_set_sysclk(dai, WM8996_SYSCLK_MCLK2, 32768, 0);
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if (ret < 0)
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return ret;
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ret = gpio_request(WM8996_HPSEL_GPIO, "HP_SEL");
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if (ret != 0)
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pr_err("Failed to request HP_SEL GPIO: %d\n", ret);
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gpio_direction_output(WM8996_HPSEL_GPIO, speyside_jack_polarity);
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ret = snd_soc_card_jack_new(rtd->card, "Headset", SND_JACK_LINEOUT |
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SND_JACK_HEADSET | SND_JACK_BTN_0,
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&speyside_headset, speyside_headset_pins,
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ARRAY_SIZE(speyside_headset_pins));
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if (ret)
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return ret;
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wm8996_detect(codec, &speyside_headset, speyside_set_polarity);
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return 0;
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}
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static int speyside_late_probe(struct snd_soc_card *card)
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{
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snd_soc_dapm_ignore_suspend(&card->dapm, "Headphone");
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snd_soc_dapm_ignore_suspend(&card->dapm, "Headset Mic");
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snd_soc_dapm_ignore_suspend(&card->dapm, "Main AMIC");
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snd_soc_dapm_ignore_suspend(&card->dapm, "Main DMIC");
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snd_soc_dapm_ignore_suspend(&card->dapm, "Main Speaker");
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snd_soc_dapm_ignore_suspend(&card->dapm, "WM1250 Output");
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snd_soc_dapm_ignore_suspend(&card->dapm, "WM1250 Input");
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return 0;
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}
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static const struct snd_soc_pcm_stream dsp_codec_params = {
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.formats = SNDRV_PCM_FMTBIT_S32_LE,
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.rate_min = 48000,
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.rate_max = 48000,
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.channels_min = 2,
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.channels_max = 2,
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};
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static struct snd_soc_dai_link speyside_dai[] = {
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{
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.name = "CPU-DSP",
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.stream_name = "CPU-DSP",
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.cpu_dai_name = "samsung-i2s.0",
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.codec_dai_name = "wm0010-sdi1",
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.platform_name = "samsung-i2s.0",
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.codec_name = "spi0.0",
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.init = speyside_wm0010_init,
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.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
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| SND_SOC_DAIFMT_CBM_CFM,
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},
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{
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.name = "DSP-CODEC",
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.stream_name = "DSP-CODEC",
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.cpu_dai_name = "wm0010-sdi2",
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.codec_dai_name = "wm8996-aif1",
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.codec_name = "wm8996.1-001a",
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.init = speyside_wm8996_init,
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.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
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| SND_SOC_DAIFMT_CBM_CFM,
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.params = &dsp_codec_params,
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.ignore_suspend = 1,
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},
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{
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.name = "Baseband",
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.stream_name = "Baseband",
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.cpu_dai_name = "wm8996-aif2",
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.codec_dai_name = "wm1250-ev1",
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.codec_name = "wm1250-ev1.1-0027",
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.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
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| SND_SOC_DAIFMT_CBM_CFM,
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.ignore_suspend = 1,
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},
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};
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static int speyside_wm9081_init(struct snd_soc_component *component)
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{
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struct snd_soc_codec *codec = snd_soc_component_to_codec(component);
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/* At any time the WM9081 is active it will have this clock */
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return snd_soc_codec_set_sysclk(codec, WM9081_SYSCLK_MCLK, 0,
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MCLK_AUDIO_RATE, 0);
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}
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static struct snd_soc_aux_dev speyside_aux_dev[] = {
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{
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.name = "wm9081",
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.codec_name = "wm9081.1-006c",
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.init = speyside_wm9081_init,
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},
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};
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static struct snd_soc_codec_conf speyside_codec_conf[] = {
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{
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.dev_name = "wm9081.1-006c",
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.name_prefix = "Sub",
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},
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};
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static const struct snd_kcontrol_new controls[] = {
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SOC_DAPM_PIN_SWITCH("Main Speaker"),
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SOC_DAPM_PIN_SWITCH("Main DMIC"),
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SOC_DAPM_PIN_SWITCH("Main AMIC"),
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SOC_DAPM_PIN_SWITCH("WM1250 Input"),
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SOC_DAPM_PIN_SWITCH("WM1250 Output"),
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SOC_DAPM_PIN_SWITCH("Headphone"),
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};
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static struct snd_soc_dapm_widget widgets[] = {
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SND_SOC_DAPM_HP("Headphone", NULL),
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SND_SOC_DAPM_MIC("Headset Mic", NULL),
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SND_SOC_DAPM_SPK("Main Speaker", NULL),
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SND_SOC_DAPM_MIC("Main AMIC", NULL),
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SND_SOC_DAPM_MIC("Main DMIC", NULL),
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};
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static struct snd_soc_dapm_route audio_paths[] = {
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{ "IN1RN", NULL, "MICB1" },
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{ "IN1RP", NULL, "MICB1" },
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{ "IN1RN", NULL, "MICB2" },
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{ "IN1RP", NULL, "MICB2" },
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{ "MICB1", NULL, "Headset Mic", speyside_get_micbias },
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{ "MICB2", NULL, "Headset Mic", speyside_get_micbias },
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{ "IN1LP", NULL, "MICB2" },
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{ "IN1RN", NULL, "MICB1" },
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{ "MICB2", NULL, "Main AMIC" },
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{ "DMIC1DAT", NULL, "MICB1" },
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{ "DMIC2DAT", NULL, "MICB1" },
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{ "MICB1", NULL, "Main DMIC" },
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{ "Headphone", NULL, "HPOUT1L" },
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{ "Headphone", NULL, "HPOUT1R" },
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{ "Sub IN1", NULL, "HPOUT2L" },
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{ "Sub IN2", NULL, "HPOUT2R" },
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{ "Main Speaker", NULL, "Sub SPKN" },
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{ "Main Speaker", NULL, "Sub SPKP" },
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{ "Main Speaker", NULL, "SPKDAT" },
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};
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static struct snd_soc_card speyside = {
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.name = "Speyside",
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.owner = THIS_MODULE,
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.dai_link = speyside_dai,
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.num_links = ARRAY_SIZE(speyside_dai),
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.aux_dev = speyside_aux_dev,
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.num_aux_devs = ARRAY_SIZE(speyside_aux_dev),
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.codec_conf = speyside_codec_conf,
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.num_configs = ARRAY_SIZE(speyside_codec_conf),
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.set_bias_level = speyside_set_bias_level,
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.set_bias_level_post = speyside_set_bias_level_post,
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.controls = controls,
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.num_controls = ARRAY_SIZE(controls),
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.dapm_widgets = widgets,
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.num_dapm_widgets = ARRAY_SIZE(widgets),
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.dapm_routes = audio_paths,
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.num_dapm_routes = ARRAY_SIZE(audio_paths),
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.fully_routed = true,
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.late_probe = speyside_late_probe,
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};
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static int speyside_probe(struct platform_device *pdev)
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{
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struct snd_soc_card *card = &speyside;
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int ret;
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card->dev = &pdev->dev;
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ret = devm_snd_soc_register_card(&pdev->dev, card);
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if (ret)
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dev_err(&pdev->dev, "snd_soc_register_card() failed: %d\n",
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ret);
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return ret;
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}
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static struct platform_driver speyside_driver = {
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.driver = {
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.name = "speyside",
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.pm = &snd_soc_pm_ops,
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},
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.probe = speyside_probe,
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};
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module_platform_driver(speyside_driver);
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MODULE_DESCRIPTION("Speyside audio support");
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MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.com>");
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MODULE_LICENSE("GPL");
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MODULE_ALIAS("platform:speyside");
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