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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ics43432.c (1887B)

      1// SPDX-License-Identifier: GPL-2.0-only
      2/*
      3 * I2S MEMS microphone driver for InvenSense ICS-43432 and similar
      4 * MEMS-based microphones.
      5 *
      6 * - Non configurable.
      7 * - I2S interface, 64 BCLs per frame, 32 bits per channel, 24 bit data
      8 *
      9 * Copyright (c) 2015 Axis Communications AB
     10 */
     11
     12#include <linux/module.h>
     13#include <linux/init.h>
     14#include <linux/slab.h>
     15#include <sound/core.h>
     16#include <sound/pcm.h>
     17#include <sound/pcm_params.h>
     18#include <sound/soc.h>
     19#include <sound/initval.h>
     20#include <sound/tlv.h>
     21
     22#define ICS43432_RATE_MIN 7190 /* Hz, from data sheet */
     23#define ICS43432_RATE_MAX 52800  /* Hz, from data sheet */
     24
     25#define ICS43432_FORMATS (SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S32)
     26
     27static struct snd_soc_dai_driver ics43432_dai = {
     28	.name = "ics43432-hifi",
     29	.capture = {
     30		.stream_name = "Capture",
     31		.channels_min = 1,
     32		.channels_max = 2,
     33		.rate_min = ICS43432_RATE_MIN,
     34		.rate_max = ICS43432_RATE_MAX,
     35		.rates = SNDRV_PCM_RATE_CONTINUOUS,
     36		.formats = ICS43432_FORMATS,
     37	},
     38};
     39
     40static const struct snd_soc_component_driver ics43432_component_driver = {
     41	.idle_bias_on		= 1,
     42	.use_pmdown_time	= 1,
     43	.endianness		= 1,
     44	.non_legacy_dai_naming	= 1,
     45};
     46
     47static int ics43432_probe(struct platform_device *pdev)
     48{
     49	return devm_snd_soc_register_component(&pdev->dev,
     50			&ics43432_component_driver,
     51			&ics43432_dai, 1);
     52}
     53
     54#ifdef CONFIG_OF
     55static const struct of_device_id ics43432_ids[] = {
     56	{ .compatible = "invensense,ics43432", },
     57	{ .compatible = "cui,cmm-4030d-261", },
     58	{ }
     59};
     60MODULE_DEVICE_TABLE(of, ics43432_ids);
     61#endif
     62
     63static struct platform_driver ics43432_driver = {
     64	.driver = {
     65		.name = "ics43432",
     66		.of_match_table = of_match_ptr(ics43432_ids),
     67	},
     68	.probe = ics43432_probe,
     69};
     70
     71module_platform_driver(ics43432_driver);
     72
     73MODULE_DESCRIPTION("ASoC ICS43432 driver");
     74MODULE_AUTHOR("Ricard Wanderlof <ricardw@axis.com>");
     75MODULE_LICENSE("GPL v2");