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![Mengdong Lin](/assets/img/avatar_default.png)
Vendor drivers no longer access a DAI link's runtime by the link index but by matching the link name via snd_soc_get_pcm_runtime(). We assume each DAI link has a unique name. This is preparation for changing runtimes from an array to a list later. Vendor drivers changed: sound/soc/fsl/fsl-asoc-card.c sound/soc/fsl/imx-wm8962.c sound/soc/pxa/mioa701_wm9713.c sound/soc/samsung/bells.c sound/soc/samsung/littlemill.c sound/soc/samsung/odroidx2_max98090.c sound/soc/samsung/snow.c sound/soc/samsung/speyside.c sound/soc/samsung/tobermory.c sound/soc/tegra/tegra_wm8903 Signed-off-by: Mengdong Lin <mengdong.lin@linux.intel.com> Signed-off-by: Mark Brown <broonie@kernel.org>
348 lines
8.2 KiB
C
348 lines
8.2 KiB
C
/*
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* Littlemill 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/wm8994.h"
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static int sample_rate = 44100;
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static int littlemill_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 *aif1_dai;
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int ret;
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rtd = snd_soc_get_pcm_runtime(card, card->dai_link[0].name);
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aif1_dai = rtd->codec_dai;
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if (dapm->dev != aif1_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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/*
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* If we've not already clocked things via hw_params()
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* then do so now, otherwise these are noops.
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*/
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if (dapm->bias_level == SND_SOC_BIAS_STANDBY) {
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ret = snd_soc_dai_set_pll(aif1_dai, WM8994_FLL1,
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WM8994_FLL_SRC_MCLK2, 32768,
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sample_rate * 512);
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if (ret < 0) {
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pr_err("Failed to start FLL: %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,
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WM8994_SYSCLK_FLL1,
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sample_rate * 512,
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SND_SOC_CLOCK_IN);
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if (ret < 0) {
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pr_err("Failed to set SYSCLK: %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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return 0;
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}
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static int littlemill_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 *aif1_dai;
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int ret;
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rtd = snd_soc_get_pcm_runtime(card, card->dai_link[0].name);
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aif1_dai = rtd->codec_dai;
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if (dapm->dev != aif1_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(aif1_dai, WM8994_SYSCLK_MCLK2,
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32768, SND_SOC_CLOCK_IN);
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if (ret < 0) {
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pr_err("Failed to switch away from FLL1: %d\n", ret);
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return ret;
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}
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ret = snd_soc_dai_set_pll(aif1_dai, WM8994_FLL1,
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0, 0, 0);
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if (ret < 0) {
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pr_err("Failed to stop FLL1: %d\n", ret);
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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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dapm->bias_level = level;
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return 0;
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}
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static int littlemill_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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struct snd_soc_dai *codec_dai = rtd->codec_dai;
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int ret;
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sample_rate = params_rate(params);
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ret = snd_soc_dai_set_pll(codec_dai, WM8994_FLL1,
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WM8994_FLL_SRC_MCLK2, 32768,
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sample_rate * 512);
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if (ret < 0) {
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pr_err("Failed to start FLL: %d\n", ret);
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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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WM8994_SYSCLK_FLL1,
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sample_rate * 512,
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SND_SOC_CLOCK_IN);
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if (ret < 0) {
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pr_err("Failed to set SYSCLK: %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 struct snd_soc_ops littlemill_ops = {
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.hw_params = littlemill_hw_params,
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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 struct snd_soc_dai_link littlemill_dai[] = {
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{
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.name = "CPU",
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.stream_name = "CPU",
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.cpu_dai_name = "samsung-i2s.0",
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.codec_dai_name = "wm8994-aif1",
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.platform_name = "samsung-i2s.0",
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.codec_name = "wm8994-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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.ops = &littlemill_ops,
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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 = "wm8994-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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static int bbclk_ev(struct snd_soc_dapm_widget *w,
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struct snd_kcontrol *kcontrol, int event)
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{
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struct snd_soc_card *card = w->dapm->card;
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struct snd_soc_pcm_runtime *rtd;
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struct snd_soc_dai *aif2_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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aif2_dai = rtd->cpu_dai;
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switch (event) {
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case SND_SOC_DAPM_PRE_PMU:
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ret = snd_soc_dai_set_pll(aif2_dai, WM8994_FLL2,
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WM8994_FLL_SRC_BCLK, 64 * 8000,
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8000 * 256);
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if (ret < 0) {
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pr_err("Failed to start FLL: %d\n", ret);
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return ret;
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}
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ret = snd_soc_dai_set_sysclk(aif2_dai, WM8994_SYSCLK_FLL2,
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8000 * 256,
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SND_SOC_CLOCK_IN);
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if (ret < 0) {
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pr_err("Failed to set SYSCLK: %d\n", ret);
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return ret;
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}
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break;
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case SND_SOC_DAPM_POST_PMD:
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ret = snd_soc_dai_set_sysclk(aif2_dai, WM8994_SYSCLK_MCLK2,
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32768, SND_SOC_CLOCK_IN);
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if (ret < 0) {
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pr_err("Failed to switch away from FLL2: %d\n", ret);
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return ret;
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}
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ret = snd_soc_dai_set_pll(aif2_dai, WM8994_FLL2,
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0, 0, 0);
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if (ret < 0) {
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pr_err("Failed to stop FLL2: %d\n", ret);
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return ret;
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}
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break;
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default:
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return -EINVAL;
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}
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return 0;
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}
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static const struct snd_kcontrol_new controls[] = {
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SOC_DAPM_PIN_SWITCH("WM1250 Input"),
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SOC_DAPM_PIN_SWITCH("WM1250 Output"),
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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("AMIC", NULL),
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SND_SOC_DAPM_MIC("DMIC", NULL),
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SND_SOC_DAPM_SUPPLY_S("Baseband Clock", -1, SND_SOC_NOPM, 0, 0,
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bbclk_ev,
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SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD),
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};
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static struct snd_soc_dapm_route audio_paths[] = {
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{ "Headphone", NULL, "HPOUT1L" },
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{ "Headphone", NULL, "HPOUT1R" },
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{ "AMIC", NULL, "MICBIAS1" }, /* Default for AMICBIAS jumper */
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{ "IN1LN", NULL, "AMIC" },
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{ "DMIC", NULL, "MICBIAS2" }, /* Default for DMICBIAS jumper */
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{ "DMIC1DAT", NULL, "DMIC" },
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{ "DMIC2DAT", NULL, "DMIC" },
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{ "AIF2CLK", NULL, "Baseband Clock" },
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};
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static struct snd_soc_jack littlemill_headset;
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static int littlemill_late_probe(struct snd_soc_card *card)
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{
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struct snd_soc_pcm_runtime *rtd;
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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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int ret;
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rtd = snd_soc_get_pcm_runtime(card, card->dai_link[0].name);
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codec = rtd->codec;
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aif1_dai = rtd->codec_dai;
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rtd = snd_soc_get_pcm_runtime(card, card->dai_link[1].name);
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aif2_dai = rtd->cpu_dai;
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ret = snd_soc_dai_set_sysclk(aif1_dai, WM8994_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_sysclk(aif2_dai, WM8994_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_card_jack_new(card, "Headset",
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SND_JACK_HEADSET | SND_JACK_MECHANICAL |
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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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SND_JACK_BTN_4 | SND_JACK_BTN_5,
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&littlemill_headset, NULL, 0);
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if (ret)
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return ret;
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/* This will check device compatibility itself */
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wm8958_mic_detect(codec, &littlemill_headset, NULL, NULL, NULL, NULL);
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/* As will this */
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wm8994_mic_detect(codec, &littlemill_headset, 1);
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return 0;
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}
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static struct snd_soc_card littlemill = {
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.name = "Littlemill",
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.owner = THIS_MODULE,
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.dai_link = littlemill_dai,
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.num_links = ARRAY_SIZE(littlemill_dai),
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.set_bias_level = littlemill_set_bias_level,
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.set_bias_level_post = littlemill_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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.late_probe = littlemill_late_probe,
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};
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static int littlemill_probe(struct platform_device *pdev)
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{
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struct snd_soc_card *card = &littlemill;
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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 littlemill_driver = {
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.driver = {
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.name = "littlemill",
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.pm = &snd_soc_pm_ops,
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},
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.probe = littlemill_probe,
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};
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module_platform_driver(littlemill_driver);
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MODULE_DESCRIPTION("Littlemill 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:littlemill");
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