348 lines
9.3 KiB
C
348 lines
9.3 KiB
C
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/*
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* mt8173-rt5650.c -- MT8173 machine driver with RT5650 codecs
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*
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* Copyright (c) 2016 MediaTek Inc.
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* Author: Koro Chen <koro.chen@mediatek.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 and
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* only version 2 as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#include <linux/module.h>
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#include <linux/gpio.h>
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#include <linux/of_gpio.h>
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#include <sound/soc.h>
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#include <sound/jack.h>
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#include "../../codecs/rt5645.h"
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#define MCLK_FOR_CODECS 12288000
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enum mt8173_rt5650_mclk {
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MT8173_RT5650_MCLK_EXTERNAL = 0,
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MT8173_RT5650_MCLK_INTERNAL,
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};
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struct mt8173_rt5650_platform_data {
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enum mt8173_rt5650_mclk pll_from;
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/* 0 = external oscillator; 1 = internal source from mt8173 */
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};
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static struct mt8173_rt5650_platform_data mt8173_rt5650_priv = {
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.pll_from = MT8173_RT5650_MCLK_EXTERNAL,
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};
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static const struct snd_soc_dapm_widget mt8173_rt5650_widgets[] = {
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SND_SOC_DAPM_SPK("Speaker", NULL),
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SND_SOC_DAPM_MIC("Int Mic", NULL),
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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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};
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static const struct snd_soc_dapm_route mt8173_rt5650_routes[] = {
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{"Speaker", NULL, "SPOL"},
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{"Speaker", NULL, "SPOR"},
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{"DMIC L1", NULL, "Int Mic"},
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{"DMIC R1", NULL, "Int Mic"},
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{"Headphone", NULL, "HPOL"},
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{"Headphone", NULL, "HPOR"},
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{"Headset Mic", NULL, "micbias1"},
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{"Headset Mic", NULL, "micbias2"},
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{"IN1P", NULL, "Headset Mic"},
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{"IN1N", NULL, "Headset Mic"},
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};
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static const struct snd_kcontrol_new mt8173_rt5650_controls[] = {
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SOC_DAPM_PIN_SWITCH("Speaker"),
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SOC_DAPM_PIN_SWITCH("Int Mic"),
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SOC_DAPM_PIN_SWITCH("Headphone"),
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SOC_DAPM_PIN_SWITCH("Headset Mic"),
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};
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static int mt8173_rt5650_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 = substream->private_data;
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unsigned int mclk_clock;
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int i, ret;
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switch (mt8173_rt5650_priv.pll_from) {
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case MT8173_RT5650_MCLK_EXTERNAL:
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/* mclk = 12.288M */
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mclk_clock = MCLK_FOR_CODECS;
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break;
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case MT8173_RT5650_MCLK_INTERNAL:
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/* mclk = sampling rate*256 */
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mclk_clock = params_rate(params) * 256;
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break;
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default:
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/* mclk = 12.288M */
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mclk_clock = MCLK_FOR_CODECS;
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break;
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}
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for (i = 0; i < rtd->num_codecs; i++) {
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struct snd_soc_dai *codec_dai = rtd->codec_dais[i];
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/* pll from mclk */
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ret = snd_soc_dai_set_pll(codec_dai, 0, 0, mclk_clock,
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params_rate(params) * 512);
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if (ret)
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return ret;
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/* sysclk from pll */
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ret = snd_soc_dai_set_sysclk(codec_dai, 1,
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params_rate(params) * 512,
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SND_SOC_CLOCK_IN);
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if (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 struct snd_soc_ops mt8173_rt5650_ops = {
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.hw_params = mt8173_rt5650_hw_params,
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};
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static struct snd_soc_jack mt8173_rt5650_jack;
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static int mt8173_rt5650_init(struct snd_soc_pcm_runtime *runtime)
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{
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struct snd_soc_card *card = runtime->card;
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struct snd_soc_codec *codec = runtime->codec_dais[0]->codec;
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const char *codec_capture_dai = runtime->codec_dais[1]->name;
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int ret;
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rt5645_sel_asrc_clk_src(codec,
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RT5645_DA_STEREO_FILTER,
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RT5645_CLK_SEL_I2S1_ASRC);
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if (!strcmp(codec_capture_dai, "rt5645-aif1")) {
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rt5645_sel_asrc_clk_src(codec,
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RT5645_AD_STEREO_FILTER,
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RT5645_CLK_SEL_I2S1_ASRC);
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} else if (!strcmp(codec_capture_dai, "rt5645-aif2")) {
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rt5645_sel_asrc_clk_src(codec,
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RT5645_AD_STEREO_FILTER,
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RT5645_CLK_SEL_I2S2_ASRC);
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} else {
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dev_warn(card->dev,
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"Only one dai codec found in DTS, enabled rt5645 AD filter\n");
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rt5645_sel_asrc_clk_src(codec,
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RT5645_AD_STEREO_FILTER,
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RT5645_CLK_SEL_I2S1_ASRC);
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}
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/* enable jack detection */
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ret = snd_soc_card_jack_new(card, "Headset Jack",
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SND_JACK_HEADPHONE | SND_JACK_MICROPHONE |
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SND_JACK_BTN_0 | SND_JACK_BTN_1 |
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SND_JACK_BTN_2 | SND_JACK_BTN_3,
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&mt8173_rt5650_jack, NULL, 0);
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if (ret) {
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dev_err(card->dev, "Can't new Headset Jack %d\n", ret);
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return ret;
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}
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return rt5645_set_jack_detect(codec,
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&mt8173_rt5650_jack,
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&mt8173_rt5650_jack,
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&mt8173_rt5650_jack);
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}
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static struct snd_soc_dai_link_component mt8173_rt5650_codecs[] = {
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{
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/* Playback */
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.dai_name = "rt5645-aif1",
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},
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{
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/* Capture */
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.dai_name = "rt5645-aif1",
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},
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};
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enum {
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DAI_LINK_PLAYBACK,
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DAI_LINK_CAPTURE,
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DAI_LINK_HDMI,
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DAI_LINK_CODEC_I2S,
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DAI_LINK_HDMI_I2S,
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};
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/* Digital audio interface glue - connects codec <---> CPU */
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static struct snd_soc_dai_link mt8173_rt5650_dais[] = {
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/* Front End DAI links */
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[DAI_LINK_PLAYBACK] = {
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.name = "rt5650 Playback",
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.stream_name = "rt5650 Playback",
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.cpu_dai_name = "DL1",
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.codec_name = "snd-soc-dummy",
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.codec_dai_name = "snd-soc-dummy-dai",
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.trigger = {SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST},
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.dynamic = 1,
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.dpcm_playback = 1,
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},
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[DAI_LINK_CAPTURE] = {
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.name = "rt5650 Capture",
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.stream_name = "rt5650 Capture",
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.cpu_dai_name = "VUL",
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.codec_name = "snd-soc-dummy",
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.codec_dai_name = "snd-soc-dummy-dai",
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.trigger = {SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST},
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.dynamic = 1,
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.dpcm_capture = 1,
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},
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[DAI_LINK_HDMI] = {
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.name = "HDMI",
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.stream_name = "HDMI PCM",
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.cpu_dai_name = "HDMI",
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.codec_name = "snd-soc-dummy",
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.codec_dai_name = "snd-soc-dummy-dai",
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.trigger = {SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST},
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.dynamic = 1,
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.dpcm_playback = 1,
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},
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/* Back End DAI links */
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[DAI_LINK_CODEC_I2S] = {
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.name = "Codec",
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.cpu_dai_name = "I2S",
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.no_pcm = 1,
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.codecs = mt8173_rt5650_codecs,
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.num_codecs = 2,
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.init = mt8173_rt5650_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 = &mt8173_rt5650_ops,
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.ignore_pmdown_time = 1,
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.dpcm_playback = 1,
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.dpcm_capture = 1,
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},
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[DAI_LINK_HDMI_I2S] = {
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.name = "HDMI BE",
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.cpu_dai_name = "HDMIO",
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.no_pcm = 1,
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.codec_dai_name = "i2s-hifi",
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.dpcm_playback = 1,
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},
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};
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static struct snd_soc_card mt8173_rt5650_card = {
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.name = "mtk-rt5650",
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.owner = THIS_MODULE,
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.dai_link = mt8173_rt5650_dais,
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.num_links = ARRAY_SIZE(mt8173_rt5650_dais),
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.controls = mt8173_rt5650_controls,
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.num_controls = ARRAY_SIZE(mt8173_rt5650_controls),
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.dapm_widgets = mt8173_rt5650_widgets,
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.num_dapm_widgets = ARRAY_SIZE(mt8173_rt5650_widgets),
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.dapm_routes = mt8173_rt5650_routes,
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.num_dapm_routes = ARRAY_SIZE(mt8173_rt5650_routes),
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};
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static int mt8173_rt5650_dev_probe(struct platform_device *pdev)
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{
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struct snd_soc_card *card = &mt8173_rt5650_card;
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struct device_node *platform_node;
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struct device_node *np;
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const char *codec_capture_dai;
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int i, ret;
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platform_node = of_parse_phandle(pdev->dev.of_node,
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"mediatek,platform", 0);
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if (!platform_node) {
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dev_err(&pdev->dev, "Property 'platform' missing or invalid\n");
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return -EINVAL;
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}
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for (i = 0; i < card->num_links; i++) {
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if (mt8173_rt5650_dais[i].platform_name)
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continue;
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mt8173_rt5650_dais[i].platform_of_node = platform_node;
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}
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mt8173_rt5650_codecs[0].of_node =
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of_parse_phandle(pdev->dev.of_node, "mediatek,audio-codec", 0);
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if (!mt8173_rt5650_codecs[0].of_node) {
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dev_err(&pdev->dev,
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"Property 'audio-codec' missing or invalid\n");
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return -EINVAL;
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}
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mt8173_rt5650_codecs[1].of_node = mt8173_rt5650_codecs[0].of_node;
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if (of_find_node_by_name(platform_node, "codec-capture")) {
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np = of_get_child_by_name(pdev->dev.of_node, "codec-capture");
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if (!np) {
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dev_err(&pdev->dev,
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"%s: Can't find codec-capture DT node\n",
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__func__);
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return -EINVAL;
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}
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ret = snd_soc_of_get_dai_name(np, &codec_capture_dai);
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if (ret < 0) {
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dev_err(&pdev->dev,
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"%s codec_capture_dai name fail %d\n",
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__func__, ret);
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return ret;
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}
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mt8173_rt5650_codecs[1].dai_name = codec_capture_dai;
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}
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if (device_property_present(&pdev->dev, "mediatek,mclk")) {
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ret = device_property_read_u32(&pdev->dev,
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"mediatek,mclk",
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&mt8173_rt5650_priv.pll_from);
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if (ret) {
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dev_err(&pdev->dev,
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"%s snd_soc_register_card fail %d\n",
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__func__, ret);
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}
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}
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mt8173_rt5650_dais[DAI_LINK_HDMI_I2S].codec_of_node =
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of_parse_phandle(pdev->dev.of_node, "mediatek,audio-codec", 1);
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if (!mt8173_rt5650_dais[DAI_LINK_HDMI_I2S].codec_of_node) {
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dev_err(&pdev->dev,
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"Property 'audio-codec' missing or invalid\n");
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return -EINVAL;
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}
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card->dev = &pdev->dev;
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platform_set_drvdata(pdev, card);
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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, "%s snd_soc_register_card fail %d\n",
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__func__, ret);
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return ret;
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}
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static const struct of_device_id mt8173_rt5650_dt_match[] = {
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{ .compatible = "mediatek,mt8173-rt5650", },
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{ }
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};
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MODULE_DEVICE_TABLE(of, mt8173_rt5650_dt_match);
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static struct platform_driver mt8173_rt5650_driver = {
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.driver = {
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.name = "mtk-rt5650",
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.of_match_table = mt8173_rt5650_dt_match,
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#ifdef CONFIG_PM
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.pm = &snd_soc_pm_ops,
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#endif
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},
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.probe = mt8173_rt5650_dev_probe,
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};
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module_platform_driver(mt8173_rt5650_driver);
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/* Module information */
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MODULE_DESCRIPTION("MT8173 RT5650 SoC machine driver");
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MODULE_AUTHOR("Koro Chen <koro.chen@mediatek.com>");
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MODULE_LICENSE("GPL v2");
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MODULE_ALIAS("platform:mtk-rt5650");
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