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Viewing changes to buildroot/src/oem-audiosdw-lp1836324-1ubuntu1.3/soc/cirrus/snappercl15.c

  • Committer: Hui Wang
  • Date: 2019-12-13 02:41:40 UTC
  • Revision ID: hui.wang@canonical.com-20191213024140-1cprdcbl3122fn85
insert pc-oem-dkms

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buildroot/src/oem-audiosdw-lp1836324-1ubuntu1.3/soc/cirrus/snappercl15.c
 
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// SPDX-License-Identifier: GPL-2.0-or-later
 
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/*
 
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 * snappercl15.c -- SoC audio for Bluewater Systems Snapper CL15 module
 
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 *
 
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 * Copyright (C) 2008 Bluewater Systems Ltd
 
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 * Author: Ryan Mallon
 
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 */
 
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#include <linux/platform_device.h>
 
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#include <linux/module.h>
 
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#include <linux/soc/cirrus/ep93xx.h>
 
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#include <sound/core.h>
 
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#include <sound/pcm.h>
 
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#include <sound/soc.h>
 
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#include <asm/mach-types.h>
 
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#include "../codecs/tlv320aic23.h"
 
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#define CODEC_CLOCK 5644800
 
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static int snappercl15_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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        struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
 
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        int err;
 
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        err = snd_soc_dai_set_sysclk(codec_dai, 0, CODEC_CLOCK, 
 
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                                     SND_SOC_CLOCK_IN);
 
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        if (err)
 
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                return err;
 
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        err = snd_soc_dai_set_sysclk(cpu_dai, 0, CODEC_CLOCK, 
 
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                                     SND_SOC_CLOCK_OUT);
 
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        if (err)
 
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                return err;
 
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        return 0;
 
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}
 
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static const struct snd_soc_ops snappercl15_ops = {
 
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        .hw_params      = snappercl15_hw_params,
 
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};
 
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static const struct snd_soc_dapm_widget tlv320aic23_dapm_widgets[] = {
 
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        SND_SOC_DAPM_HP("Headphone Jack", NULL),
 
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        SND_SOC_DAPM_LINE("Line In", NULL),
 
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        SND_SOC_DAPM_MIC("Mic Jack", NULL),
 
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};
 
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static const struct snd_soc_dapm_route audio_map[] = {
 
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        {"Headphone Jack", NULL, "LHPOUT"},
 
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        {"Headphone Jack", NULL, "RHPOUT"},
 
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        {"LLINEIN", NULL, "Line In"},
 
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        {"RLINEIN", NULL, "Line In"},
 
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        {"MICIN", NULL, "Mic Jack"},
 
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};
 
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SND_SOC_DAILINK_DEFS(aic23,
 
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        DAILINK_COMP_ARRAY(COMP_CPU("ep93xx-i2s")),
 
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        DAILINK_COMP_ARRAY(COMP_CODEC("tlv320aic23-codec.0-001a",
 
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                                      "tlv320aic23-hifi")),
 
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        DAILINK_COMP_ARRAY(COMP_PLATFORM("ep93xx-i2s")));
 
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static struct snd_soc_dai_link snappercl15_dai = {
 
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        .name           = "tlv320aic23",
 
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        .stream_name    = "AIC23",
 
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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            = &snappercl15_ops,
 
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        SND_SOC_DAILINK_REG(aic23),
 
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};
 
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static struct snd_soc_card snd_soc_snappercl15 = {
 
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        .name           = "Snapper CL15",
 
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        .owner          = THIS_MODULE,
 
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        .dai_link       = &snappercl15_dai,
 
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        .num_links      = 1,
 
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        .dapm_widgets           = tlv320aic23_dapm_widgets,
 
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        .num_dapm_widgets       = ARRAY_SIZE(tlv320aic23_dapm_widgets),
 
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        .dapm_routes            = audio_map,
 
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        .num_dapm_routes        = ARRAY_SIZE(audio_map),
 
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};
 
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static int snappercl15_probe(struct platform_device *pdev)
 
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{
 
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        struct snd_soc_card *card = &snd_soc_snappercl15;
 
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        int ret;
 
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        ret = ep93xx_i2s_acquire();
 
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        if (ret)
 
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                return ret;
 
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        card->dev = &pdev->dev;
 
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        ret = snd_soc_register_card(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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                ep93xx_i2s_release();
 
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        }
 
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        return ret;
 
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}
 
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static int snappercl15_remove(struct platform_device *pdev)
 
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{
 
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        struct snd_soc_card *card = platform_get_drvdata(pdev);
 
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        snd_soc_unregister_card(card);
 
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        ep93xx_i2s_release();
 
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        return 0;
 
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}
 
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static struct platform_driver snappercl15_driver = {
 
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        .driver         = {
 
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                .name   = "snappercl15-audio",
 
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        },
 
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        .probe          = snappercl15_probe,
 
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        .remove         = snappercl15_remove,
 
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};
 
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module_platform_driver(snappercl15_driver);
 
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MODULE_AUTHOR("Ryan Mallon");
 
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MODULE_DESCRIPTION("ALSA SoC Snapper CL15");
 
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MODULE_LICENSE("GPL");
 
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MODULE_ALIAS("platform:snappercl15-audio");