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135 lines
3.1 KiB
C
135 lines
3.1 KiB
C
// 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");
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