cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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ads117x.c (2448B)

      1// SPDX-License-Identifier: GPL-2.0-or-later
      2/*
      3 * ads117x.c  --  Driver for ads1174/8 ADC chips
      4 *
      5 * Copyright 2009 ShotSpotter Inc.
      6 * Author: Graeme Gregory <gg@slimlogic.co.uk>
      7 */
      8
      9#include <linux/kernel.h>
     10#include <linux/slab.h>
     11#include <linux/init.h>
     12#include <linux/device.h>
     13#include <linux/module.h>
     14#include <sound/core.h>
     15#include <sound/pcm.h>
     16#include <sound/initval.h>
     17#include <sound/soc.h>
     18
     19#include <linux/of.h>
     20
     21#define ADS117X_RATES (SNDRV_PCM_RATE_8000_48000)
     22#define ADS117X_FORMATS (SNDRV_PCM_FMTBIT_S16_LE)
     23
     24static const struct snd_soc_dapm_widget ads117x_dapm_widgets[] = {
     25SND_SOC_DAPM_INPUT("Input1"),
     26SND_SOC_DAPM_INPUT("Input2"),
     27SND_SOC_DAPM_INPUT("Input3"),
     28SND_SOC_DAPM_INPUT("Input4"),
     29SND_SOC_DAPM_INPUT("Input5"),
     30SND_SOC_DAPM_INPUT("Input6"),
     31SND_SOC_DAPM_INPUT("Input7"),
     32SND_SOC_DAPM_INPUT("Input8"),
     33};
     34
     35static const struct snd_soc_dapm_route ads117x_dapm_routes[] = {
     36	{ "Capture", NULL, "Input1" },
     37	{ "Capture", NULL, "Input2" },
     38	{ "Capture", NULL, "Input3" },
     39	{ "Capture", NULL, "Input4" },
     40	{ "Capture", NULL, "Input5" },
     41	{ "Capture", NULL, "Input6" },
     42	{ "Capture", NULL, "Input7" },
     43	{ "Capture", NULL, "Input8" },
     44};
     45
     46static struct snd_soc_dai_driver ads117x_dai = {
     47/* ADC */
     48	.name = "ads117x-hifi",
     49	.capture = {
     50		.stream_name = "Capture",
     51		.channels_min = 1,
     52		.channels_max = 32,
     53		.rates = ADS117X_RATES,
     54		.formats = ADS117X_FORMATS,},
     55};
     56
     57static const struct snd_soc_component_driver soc_component_dev_ads117x = {
     58	.dapm_widgets		= ads117x_dapm_widgets,
     59	.num_dapm_widgets	= ARRAY_SIZE(ads117x_dapm_widgets),
     60	.dapm_routes		= ads117x_dapm_routes,
     61	.num_dapm_routes	= ARRAY_SIZE(ads117x_dapm_routes),
     62	.idle_bias_on		= 1,
     63	.use_pmdown_time	= 1,
     64	.endianness		= 1,
     65	.non_legacy_dai_naming	= 1,
     66};
     67
     68static int ads117x_probe(struct platform_device *pdev)
     69{
     70	return devm_snd_soc_register_component(&pdev->dev,
     71			&soc_component_dev_ads117x, &ads117x_dai, 1);
     72}
     73
     74#if defined(CONFIG_OF)
     75static const struct of_device_id ads117x_dt_ids[] = {
     76	{ .compatible = "ti,ads1174" },
     77	{ .compatible = "ti,ads1178" },
     78	{ },
     79};
     80MODULE_DEVICE_TABLE(of, ads117x_dt_ids);
     81#endif
     82
     83static struct platform_driver ads117x_codec_driver = {
     84	.driver = {
     85			.name = "ads117x-codec",
     86			.of_match_table = of_match_ptr(ads117x_dt_ids),
     87	},
     88
     89	.probe = ads117x_probe,
     90};
     91
     92module_platform_driver(ads117x_codec_driver);
     93
     94MODULE_DESCRIPTION("ASoC ads117x driver");
     95MODULE_AUTHOR("Graeme Gregory");
     96MODULE_LICENSE("GPL");