478 lines
12 KiB
C
478 lines
12 KiB
C
/*
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* Bells audio support
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*
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* Copyright 2012 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/wm5102.h"
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#include "../codecs/wm9081.h"
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/* BCLK2 is fixed at this currently */
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#define BCLK2_RATE (64 * 8000)
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/*
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* Expect a 24.576MHz crystal if one is fitted (the driver will function
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* if this is not fitted).
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*/
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#define MCLK_RATE 24576000
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#define SYS_AUDIO_RATE 44100
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#define SYS_MCLK_RATE (SYS_AUDIO_RATE * 512)
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#define DAI_AP_DSP 0
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#define DAI_DSP_CODEC 1
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#define DAI_CODEC_CP 2
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#define DAI_CODEC_SUB 3
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struct bells_drvdata {
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int sysclk_rate;
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int asyncclk_rate;
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};
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static struct bells_drvdata wm2200_drvdata = {
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.sysclk_rate = 22579200,
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};
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static struct bells_drvdata wm5102_drvdata = {
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.sysclk_rate = 45158400,
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.asyncclk_rate = 49152000,
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};
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static struct bells_drvdata wm5110_drvdata = {
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.sysclk_rate = 135475200,
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.asyncclk_rate = 147456000,
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};
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static int bells_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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struct snd_soc_codec *codec;
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struct bells_drvdata *bells = card->drvdata;
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int ret;
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rtd = snd_soc_get_pcm_runtime(card, card->dai_link[DAI_DSP_CODEC].name);
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codec_dai = rtd->codec_dai;
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codec = codec_dai->codec;
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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 (dapm->bias_level != SND_SOC_BIAS_STANDBY)
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break;
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ret = snd_soc_codec_set_pll(codec, WM5102_FLL1,
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ARIZONA_FLL_SRC_MCLK1,
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MCLK_RATE,
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bells->sysclk_rate);
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if (ret < 0)
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pr_err("Failed to start FLL: %d\n", ret);
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if (bells->asyncclk_rate) {
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ret = snd_soc_codec_set_pll(codec, WM5102_FLL2,
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ARIZONA_FLL_SRC_AIF2BCLK,
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BCLK2_RATE,
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bells->asyncclk_rate);
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if (ret < 0)
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pr_err("Failed to start FLL: %d\n", 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 bells_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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struct snd_soc_codec *codec;
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struct bells_drvdata *bells = card->drvdata;
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int ret;
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rtd = snd_soc_get_pcm_runtime(card, card->dai_link[DAI_DSP_CODEC].name);
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codec_dai = rtd->codec_dai;
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codec = codec_dai->codec;
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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_codec_set_pll(codec, WM5102_FLL1, 0, 0, 0);
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if (ret < 0) {
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pr_err("Failed to stop FLL: %d\n", ret);
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return ret;
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}
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if (bells->asyncclk_rate) {
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ret = snd_soc_codec_set_pll(codec, WM5102_FLL2,
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0, 0, 0);
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if (ret < 0) {
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pr_err("Failed to stop FLL: %d\n", ret);
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return ret;
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}
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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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dapm->bias_level = level;
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return 0;
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}
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static int bells_late_probe(struct snd_soc_card *card)
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{
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struct bells_drvdata *bells = card->drvdata;
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struct snd_soc_pcm_runtime *rtd;
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struct snd_soc_codec *wm0010;
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struct snd_soc_codec *codec;
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struct snd_soc_dai *aif1_dai;
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struct snd_soc_dai *aif2_dai;
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struct snd_soc_dai *aif3_dai;
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struct snd_soc_dai *wm9081_dai;
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int ret;
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rtd = snd_soc_get_pcm_runtime(card, card->dai_link[DAI_AP_DSP].name);
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wm0010 = rtd->codec;
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rtd = snd_soc_get_pcm_runtime(card, card->dai_link[DAI_DSP_CODEC].name);
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codec = rtd->codec;
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aif1_dai = rtd->codec_dai;
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ret = snd_soc_codec_set_sysclk(codec, ARIZONA_CLK_SYSCLK,
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ARIZONA_CLK_SRC_FLL1,
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bells->sysclk_rate,
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SND_SOC_CLOCK_IN);
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if (ret != 0) {
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dev_err(codec->dev, "Failed to set SYSCLK: %d\n", ret);
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return ret;
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}
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ret = snd_soc_codec_set_sysclk(wm0010, 0, 0, SYS_MCLK_RATE, 0);
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if (ret != 0) {
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dev_err(wm0010->dev, "Failed to set WM0010 clock: %d\n", ret);
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return ret;
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}
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ret = snd_soc_dai_set_sysclk(aif1_dai, ARIZONA_CLK_SYSCLK, 0, 0);
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if (ret != 0)
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dev_err(aif1_dai->dev, "Failed to set AIF1 clock: %d\n", ret);
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ret = snd_soc_codec_set_sysclk(codec, ARIZONA_CLK_OPCLK, 0,
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SYS_MCLK_RATE, SND_SOC_CLOCK_OUT);
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if (ret != 0)
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dev_err(codec->dev, "Failed to set OPCLK: %d\n", ret);
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if (card->num_rtd == DAI_CODEC_CP)
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return 0;
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ret = snd_soc_codec_set_sysclk(codec, ARIZONA_CLK_ASYNCCLK,
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ARIZONA_CLK_SRC_FLL2,
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bells->asyncclk_rate,
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SND_SOC_CLOCK_IN);
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if (ret != 0) {
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dev_err(codec->dev, "Failed to set ASYNCCLK: %d\n", ret);
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return ret;
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}
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rtd = snd_soc_get_pcm_runtime(card, card->dai_link[DAI_CODEC_CP].name);
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aif2_dai = rtd->cpu_dai;
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ret = snd_soc_dai_set_sysclk(aif2_dai, ARIZONA_CLK_ASYNCCLK, 0, 0);
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if (ret != 0) {
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dev_err(aif2_dai->dev, "Failed to set AIF2 clock: %d\n", ret);
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return ret;
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}
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if (card->num_rtd == DAI_CODEC_SUB)
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return 0;
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rtd = snd_soc_get_pcm_runtime(card, card->dai_link[DAI_CODEC_SUB].name);
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aif3_dai = rtd->cpu_dai;
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wm9081_dai = rtd->codec_dai;
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ret = snd_soc_dai_set_sysclk(aif3_dai, ARIZONA_CLK_SYSCLK, 0, 0);
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if (ret != 0) {
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dev_err(aif1_dai->dev, "Failed to set AIF1 clock: %d\n", ret);
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return ret;
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}
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ret = snd_soc_codec_set_sysclk(wm9081_dai->codec, WM9081_SYSCLK_MCLK,
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0, SYS_MCLK_RATE, 0);
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if (ret != 0) {
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dev_err(wm9081_dai->dev, "Failed to set MCLK: %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 const struct snd_soc_pcm_stream baseband_params = {
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.formats = SNDRV_PCM_FMTBIT_S32_LE,
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.rate_min = 8000,
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.rate_max = 8000,
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.channels_min = 2,
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.channels_max = 2,
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};
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static const struct snd_soc_pcm_stream sub_params = {
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.formats = SNDRV_PCM_FMTBIT_S32_LE,
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.rate_min = SYS_AUDIO_RATE,
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.rate_max = SYS_AUDIO_RATE,
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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 bells_dai_wm2200[] = {
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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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.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 = "wm2200",
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.codec_name = "wm2200.1-003a",
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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 = &sub_params,
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.ignore_suspend = 1,
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},
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};
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static struct snd_soc_dai_link bells_dai_wm5102[] = {
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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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.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 = "wm5102-aif1",
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.codec_name = "wm5102-codec",
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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 = &sub_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 = "wm5102-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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.params = &baseband_params,
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},
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{
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.name = "Sub",
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.stream_name = "Sub",
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.cpu_dai_name = "wm5102-aif3",
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.codec_dai_name = "wm9081-hifi",
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.codec_name = "wm9081.1-006c",
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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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.ignore_suspend = 1,
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.params = &sub_params,
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},
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};
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static struct snd_soc_dai_link bells_dai_wm5110[] = {
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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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.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 = "wm5110-aif1",
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.codec_name = "wm5110-codec",
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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 = &sub_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 = "wm5110-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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.params = &baseband_params,
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},
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{
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.name = "Sub",
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.stream_name = "Sub",
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.cpu_dai_name = "wm5110-aif3",
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.codec_dai_name = "wm9081-hifi",
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.codec_name = "wm9081.1-006c",
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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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.ignore_suspend = 1,
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.params = &sub_params,
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},
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};
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static struct snd_soc_codec_conf bells_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 struct snd_soc_dapm_widget bells_widgets[] = {
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SND_SOC_DAPM_MIC("DMIC", NULL),
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};
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static struct snd_soc_dapm_route bells_routes[] = {
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{ "Sub CLK_SYS", NULL, "OPCLK" },
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{ "CLKIN", NULL, "OPCLK" },
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{ "DMIC", NULL, "MICBIAS2" },
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{ "IN2L", NULL, "DMIC" },
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{ "IN2R", NULL, "DMIC" },
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};
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static struct snd_soc_card bells_cards[] = {
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{
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.name = "Bells WM2200",
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.owner = THIS_MODULE,
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.dai_link = bells_dai_wm2200,
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.num_links = ARRAY_SIZE(bells_dai_wm2200),
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.codec_conf = bells_codec_conf,
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.num_configs = ARRAY_SIZE(bells_codec_conf),
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.late_probe = bells_late_probe,
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.dapm_widgets = bells_widgets,
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.num_dapm_widgets = ARRAY_SIZE(bells_widgets),
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.dapm_routes = bells_routes,
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.num_dapm_routes = ARRAY_SIZE(bells_routes),
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.set_bias_level = bells_set_bias_level,
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.set_bias_level_post = bells_set_bias_level_post,
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.drvdata = &wm2200_drvdata,
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},
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{
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.name = "Bells WM5102",
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.owner = THIS_MODULE,
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.dai_link = bells_dai_wm5102,
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.num_links = ARRAY_SIZE(bells_dai_wm5102),
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.codec_conf = bells_codec_conf,
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.num_configs = ARRAY_SIZE(bells_codec_conf),
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.late_probe = bells_late_probe,
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.dapm_widgets = bells_widgets,
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.num_dapm_widgets = ARRAY_SIZE(bells_widgets),
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.dapm_routes = bells_routes,
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.num_dapm_routes = ARRAY_SIZE(bells_routes),
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.set_bias_level = bells_set_bias_level,
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.set_bias_level_post = bells_set_bias_level_post,
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.drvdata = &wm5102_drvdata,
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},
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{
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.name = "Bells WM5110",
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.owner = THIS_MODULE,
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.dai_link = bells_dai_wm5110,
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.num_links = ARRAY_SIZE(bells_dai_wm5110),
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.codec_conf = bells_codec_conf,
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.num_configs = ARRAY_SIZE(bells_codec_conf),
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.late_probe = bells_late_probe,
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.dapm_widgets = bells_widgets,
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.num_dapm_widgets = ARRAY_SIZE(bells_widgets),
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.dapm_routes = bells_routes,
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.num_dapm_routes = ARRAY_SIZE(bells_routes),
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.set_bias_level = bells_set_bias_level,
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.set_bias_level_post = bells_set_bias_level_post,
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.drvdata = &wm5110_drvdata,
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},
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};
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static int bells_probe(struct platform_device *pdev)
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{
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int ret;
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bells_cards[pdev->id].dev = &pdev->dev;
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ret = devm_snd_soc_register_card(&pdev->dev, &bells_cards[pdev->id]);
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if (ret)
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dev_err(&pdev->dev,
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"snd_soc_register_card(%s) failed: %d\n",
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bells_cards[pdev->id].name, ret);
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return ret;
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}
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static struct platform_driver bells_driver = {
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.driver = {
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.name = "bells",
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.pm = &snd_soc_pm_ops,
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},
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.probe = bells_probe,
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};
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module_platform_driver(bells_driver);
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MODULE_DESCRIPTION("Bells 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:bells");
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