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134 lines
3.1 KiB
134 lines
3.1 KiB
// 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 = asoc_substream_to_rtd(substream); |
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struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0); |
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struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0); |
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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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