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96 lines
2.4 KiB
96 lines
2.4 KiB
// SPDX-License-Identifier: GPL-2.0-or-later |
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/* |
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* ads117x.c -- Driver for ads1174/8 ADC chips |
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* |
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* Copyright 2009 ShotSpotter Inc. |
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* Author: Graeme Gregory <[email protected]> |
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*/ |
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#include <linux/kernel.h> |
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#include <linux/slab.h> |
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#include <linux/init.h> |
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#include <linux/device.h> |
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#include <linux/module.h> |
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#include <sound/core.h> |
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#include <sound/pcm.h> |
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#include <sound/initval.h> |
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#include <sound/soc.h> |
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#include <linux/of.h> |
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#define ADS117X_RATES (SNDRV_PCM_RATE_8000_48000) |
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#define ADS117X_FORMATS (SNDRV_PCM_FMTBIT_S16_LE) |
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static const struct snd_soc_dapm_widget ads117x_dapm_widgets[] = { |
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SND_SOC_DAPM_INPUT("Input1"), |
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SND_SOC_DAPM_INPUT("Input2"), |
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SND_SOC_DAPM_INPUT("Input3"), |
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SND_SOC_DAPM_INPUT("Input4"), |
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SND_SOC_DAPM_INPUT("Input5"), |
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SND_SOC_DAPM_INPUT("Input6"), |
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SND_SOC_DAPM_INPUT("Input7"), |
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SND_SOC_DAPM_INPUT("Input8"), |
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}; |
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static const struct snd_soc_dapm_route ads117x_dapm_routes[] = { |
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{ "Capture", NULL, "Input1" }, |
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{ "Capture", NULL, "Input2" }, |
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{ "Capture", NULL, "Input3" }, |
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{ "Capture", NULL, "Input4" }, |
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{ "Capture", NULL, "Input5" }, |
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{ "Capture", NULL, "Input6" }, |
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{ "Capture", NULL, "Input7" }, |
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{ "Capture", NULL, "Input8" }, |
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}; |
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static struct snd_soc_dai_driver ads117x_dai = { |
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/* ADC */ |
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.name = "ads117x-hifi", |
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.capture = { |
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.stream_name = "Capture", |
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.channels_min = 1, |
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.channels_max = 32, |
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.rates = ADS117X_RATES, |
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.formats = ADS117X_FORMATS,}, |
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}; |
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static const struct snd_soc_component_driver soc_component_dev_ads117x = { |
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.dapm_widgets = ads117x_dapm_widgets, |
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.num_dapm_widgets = ARRAY_SIZE(ads117x_dapm_widgets), |
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.dapm_routes = ads117x_dapm_routes, |
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.num_dapm_routes = ARRAY_SIZE(ads117x_dapm_routes), |
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.idle_bias_on = 1, |
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.use_pmdown_time = 1, |
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.endianness = 1, |
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.non_legacy_dai_naming = 1, |
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}; |
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static int ads117x_probe(struct platform_device *pdev) |
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{ |
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return devm_snd_soc_register_component(&pdev->dev, |
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&soc_component_dev_ads117x, &ads117x_dai, 1); |
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} |
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#if defined(CONFIG_OF) |
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static const struct of_device_id ads117x_dt_ids[] = { |
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{ .compatible = "ti,ads1174" }, |
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{ .compatible = "ti,ads1178" }, |
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{ }, |
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}; |
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MODULE_DEVICE_TABLE(of, ads117x_dt_ids); |
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#endif |
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static struct platform_driver ads117x_codec_driver = { |
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.driver = { |
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.name = "ads117x-codec", |
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.of_match_table = of_match_ptr(ads117x_dt_ids), |
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}, |
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.probe = ads117x_probe, |
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}; |
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module_platform_driver(ads117x_codec_driver); |
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MODULE_DESCRIPTION("ASoC ads117x driver"); |
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MODULE_AUTHOR("Graeme Gregory"); |
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MODULE_LICENSE("GPL");
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