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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sof_sdw_rt5682.c (3318B)

      1// SPDX-License-Identifier: GPL-2.0-only
      2// Copyright (c) 2020 Intel Corporation
      3
      4/*
      5 *  sof_sdw_rt5682 - Helpers to handle RT5682 from generic machine driver
      6 */
      7
      8#include <linux/device.h>
      9#include <linux/errno.h>
     10#include <linux/input.h>
     11#include <linux/soundwire/sdw.h>
     12#include <linux/soundwire/sdw_type.h>
     13#include <sound/control.h>
     14#include <sound/soc.h>
     15#include <sound/soc-acpi.h>
     16#include <sound/soc-dapm.h>
     17#include <sound/jack.h>
     18#include "sof_sdw_common.h"
     19
     20static const struct snd_soc_dapm_widget rt5682_widgets[] = {
     21	SND_SOC_DAPM_HP("Headphone", NULL),
     22	SND_SOC_DAPM_MIC("Headset Mic", NULL),
     23};
     24
     25static const struct snd_soc_dapm_route rt5682_map[] = {
     26	/*Headphones*/
     27	{ "Headphone", NULL, "rt5682 HPOL" },
     28	{ "Headphone", NULL, "rt5682 HPOR" },
     29	{ "rt5682 IN1P", NULL, "Headset Mic" },
     30};
     31
     32static const struct snd_kcontrol_new rt5682_controls[] = {
     33	SOC_DAPM_PIN_SWITCH("Headphone"),
     34	SOC_DAPM_PIN_SWITCH("Headset Mic"),
     35};
     36
     37static struct snd_soc_jack_pin rt5682_jack_pins[] = {
     38	{
     39		.pin    = "Headphone",
     40		.mask   = SND_JACK_HEADPHONE,
     41	},
     42	{
     43		.pin    = "Headset Mic",
     44		.mask   = SND_JACK_MICROPHONE,
     45	},
     46};
     47
     48static int rt5682_rtd_init(struct snd_soc_pcm_runtime *rtd)
     49{
     50	struct snd_soc_card *card = rtd->card;
     51	struct mc_private *ctx = snd_soc_card_get_drvdata(card);
     52	struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0);
     53	struct snd_soc_component *component = codec_dai->component;
     54	struct snd_soc_jack *jack;
     55	int ret;
     56
     57	card->components = devm_kasprintf(card->dev, GFP_KERNEL,
     58					  "%s hs:rt5682",
     59					  card->components);
     60	if (!card->components)
     61		return -ENOMEM;
     62
     63	ret = snd_soc_add_card_controls(card, rt5682_controls,
     64					ARRAY_SIZE(rt5682_controls));
     65	if (ret) {
     66		dev_err(card->dev, "rt5682 control addition failed: %d\n", ret);
     67		return ret;
     68	}
     69
     70	ret = snd_soc_dapm_new_controls(&card->dapm, rt5682_widgets,
     71					ARRAY_SIZE(rt5682_widgets));
     72	if (ret) {
     73		dev_err(card->dev, "rt5682 widgets addition failed: %d\n", ret);
     74		return ret;
     75	}
     76
     77	ret = snd_soc_dapm_add_routes(&card->dapm, rt5682_map,
     78				      ARRAY_SIZE(rt5682_map));
     79
     80	if (ret) {
     81		dev_err(card->dev, "rt5682 map addition failed: %d\n", ret);
     82		return ret;
     83	}
     84
     85	ret = snd_soc_card_jack_new_pins(rtd->card, "Headset Jack",
     86					 SND_JACK_HEADSET | SND_JACK_BTN_0 |
     87					 SND_JACK_BTN_1 | SND_JACK_BTN_2 |
     88					 SND_JACK_BTN_3,
     89					 &ctx->sdw_headset,
     90					 rt5682_jack_pins,
     91					 ARRAY_SIZE(rt5682_jack_pins));
     92	if (ret) {
     93		dev_err(rtd->card->dev, "Headset Jack creation failed: %d\n",
     94			ret);
     95		return ret;
     96	}
     97
     98	jack = &ctx->sdw_headset;
     99
    100	snd_jack_set_key(jack->jack, SND_JACK_BTN_0, KEY_PLAYPAUSE);
    101	snd_jack_set_key(jack->jack, SND_JACK_BTN_1, KEY_VOICECOMMAND);
    102	snd_jack_set_key(jack->jack, SND_JACK_BTN_2, KEY_VOLUMEUP);
    103	snd_jack_set_key(jack->jack, SND_JACK_BTN_3, KEY_VOLUMEDOWN);
    104
    105	ret = snd_soc_component_set_jack(component, jack, NULL);
    106
    107	if (ret)
    108		dev_err(rtd->card->dev, "Headset Jack call-back failed: %d\n",
    109			ret);
    110
    111	return ret;
    112}
    113
    114int sof_sdw_rt5682_init(struct snd_soc_card *card,
    115			const struct snd_soc_acpi_link_adr *link,
    116			struct snd_soc_dai_link *dai_links,
    117			struct sof_sdw_codec_info *info,
    118			bool playback)
    119{
    120	/*
    121	 * headset should be initialized once.
    122	 * Do it with dai link for playback.
    123	 */
    124	if (!playback)
    125		return 0;
    126
    127	dai_links->init = rt5682_rtd_init;
    128
    129	return 0;
    130}