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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armada-370-db.c (4089B)

      1// SPDX-License-Identifier: GPL-2.0-or-later
      2/*
      3 * Copyright (C) 2014 Marvell
      4 *
      5 * Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
      6 */
      7
      8#include <linux/module.h>
      9#include <linux/moduleparam.h>
     10#include <linux/interrupt.h>
     11#include <linux/platform_device.h>
     12#include <linux/slab.h>
     13#include <sound/soc.h>
     14#include <linux/of.h>
     15#include <linux/platform_data/asoc-kirkwood.h>
     16#include "../codecs/cs42l51.h"
     17
     18static int a370db_hw_params(struct snd_pcm_substream *substream,
     19			    struct snd_pcm_hw_params *params)
     20{
     21	struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
     22	struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0);
     23	unsigned int freq;
     24
     25	switch (params_rate(params)) {
     26	default:
     27	case 44100:
     28		freq = 11289600;
     29		break;
     30	case 48000:
     31		freq = 12288000;
     32		break;
     33	case 96000:
     34		freq = 24576000;
     35		break;
     36	}
     37
     38	return snd_soc_dai_set_sysclk(codec_dai, 0, freq, SND_SOC_CLOCK_IN);
     39}
     40
     41static const struct snd_soc_ops a370db_ops = {
     42	.hw_params = a370db_hw_params,
     43};
     44
     45static const struct snd_soc_dapm_widget a370db_dapm_widgets[] = {
     46	SND_SOC_DAPM_HP("Out Jack", NULL),
     47	SND_SOC_DAPM_LINE("In Jack", NULL),
     48};
     49
     50static const struct snd_soc_dapm_route a370db_route[] = {
     51	{ "Out Jack",	NULL,	"HPL" },
     52	{ "Out Jack",	NULL,	"HPR" },
     53	{ "AIN1L",	NULL,	"In Jack" },
     54	{ "AIN1L",	NULL,	"In Jack" },
     55};
     56
     57SND_SOC_DAILINK_DEFS(analog,
     58	DAILINK_COMP_ARRAY(COMP_CPU("i2s")),
     59	DAILINK_COMP_ARRAY(COMP_CODEC(NULL, "cs42l51-hifi")),
     60	DAILINK_COMP_ARRAY(COMP_EMPTY()));
     61
     62SND_SOC_DAILINK_DEFS(spdif_out,
     63	DAILINK_COMP_ARRAY(COMP_CPU("spdif")),
     64	DAILINK_COMP_ARRAY(COMP_CODEC(NULL, "dit-hifi")),
     65	DAILINK_COMP_ARRAY(COMP_EMPTY()));
     66
     67SND_SOC_DAILINK_DEFS(spdif_in,
     68	DAILINK_COMP_ARRAY(COMP_CPU("spdif")),
     69	DAILINK_COMP_ARRAY(COMP_CODEC(NULL, "dir-hifi")),
     70	DAILINK_COMP_ARRAY(COMP_EMPTY()));
     71
     72static struct snd_soc_dai_link a370db_dai[] = {
     73{
     74	.name = "CS42L51",
     75	.stream_name = "analog",
     76	.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_CBS_CFS,
     77	.ops = &a370db_ops,
     78	SND_SOC_DAILINK_REG(analog),
     79},
     80{
     81	.name = "S/PDIF out",
     82	.stream_name = "spdif-out",
     83	.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_CBS_CFS,
     84	SND_SOC_DAILINK_REG(spdif_out),
     85},
     86{
     87	.name = "S/PDIF in",
     88	.stream_name = "spdif-in",
     89	.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_CBS_CFS,
     90	SND_SOC_DAILINK_REG(spdif_in),
     91},
     92};
     93
     94static struct snd_soc_card a370db = {
     95	.name = "a370db",
     96	.owner = THIS_MODULE,
     97	.dai_link = a370db_dai,
     98	.num_links = ARRAY_SIZE(a370db_dai),
     99	.dapm_widgets = a370db_dapm_widgets,
    100	.num_dapm_widgets = ARRAY_SIZE(a370db_dapm_widgets),
    101	.dapm_routes = a370db_route,
    102	.num_dapm_routes = ARRAY_SIZE(a370db_route),
    103};
    104
    105static int a370db_probe(struct platform_device *pdev)
    106{
    107	struct snd_soc_card *card = &a370db;
    108
    109	card->dev = &pdev->dev;
    110
    111	a370db_dai[0].cpus->of_node =
    112		of_parse_phandle(pdev->dev.of_node,
    113				 "marvell,audio-controller", 0);
    114	a370db_dai[0].platforms->of_node = a370db_dai[0].cpus->of_node;
    115
    116	a370db_dai[0].codecs->of_node =
    117		of_parse_phandle(pdev->dev.of_node,
    118				 "marvell,audio-codec", 0);
    119
    120	a370db_dai[1].cpus->of_node = a370db_dai[0].cpus->of_node;
    121	a370db_dai[1].platforms->of_node = a370db_dai[0].cpus->of_node;
    122
    123	a370db_dai[1].codecs->of_node =
    124		of_parse_phandle(pdev->dev.of_node,
    125				 "marvell,audio-codec", 1);
    126
    127	a370db_dai[2].cpus->of_node = a370db_dai[0].cpus->of_node;
    128	a370db_dai[2].platforms->of_node = a370db_dai[0].cpus->of_node;
    129
    130	a370db_dai[2].codecs->of_node =
    131		of_parse_phandle(pdev->dev.of_node,
    132				 "marvell,audio-codec", 2);
    133
    134	return devm_snd_soc_register_card(card->dev, card);
    135}
    136
    137static const struct of_device_id a370db_dt_ids[] __maybe_unused = {
    138	{ .compatible = "marvell,a370db-audio" },
    139	{ },
    140};
    141MODULE_DEVICE_TABLE(of, a370db_dt_ids);
    142
    143static struct platform_driver a370db_driver = {
    144	.driver		= {
    145		.name	= "a370db-audio",
    146		.of_match_table = of_match_ptr(a370db_dt_ids),
    147	},
    148	.probe		= a370db_probe,
    149};
    150
    151module_platform_driver(a370db_driver);
    152
    153MODULE_AUTHOR("Thomas Petazzoni <thomas.petazzoni@free-electrons.com>");
    154MODULE_DESCRIPTION("ALSA SoC a370db audio client");
    155MODULE_LICENSE("GPL");
    156MODULE_ALIAS("platform:a370db-audio");