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1// SPDX-License-Identifier: GPL-2.0-only2//3// Copyright(c) 2021-2022 Intel Corporation4//5// Authors: Cezary Rojewski <cezary.rojewski@intel.com>6// Amadeusz Slawinski <amadeuszx.slawinski@linux.intel.com>7//8 9#include <linux/input.h>10#include <linux/module.h>11#include <linux/platform_device.h>12#include <sound/core.h>13#include <sound/jack.h>14#include <sound/pcm.h>15#include <sound/pcm_params.h>16#include <sound/soc.h>17#include <sound/soc-acpi.h>18#include "../../../codecs/nau8825.h"19#include "../utils.h"20 21#define SKL_NUVOTON_CODEC_DAI "nau8825-hifi"22 23static int24avs_nau8825_clock_control(struct snd_soc_dapm_widget *w, struct snd_kcontrol *control, int event)25{26 struct snd_soc_dapm_context *dapm = w->dapm;27 struct snd_soc_card *card = dapm->card;28 struct snd_soc_dai *codec_dai;29 int ret;30 31 codec_dai = snd_soc_card_get_codec_dai(card, SKL_NUVOTON_CODEC_DAI);32 if (!codec_dai) {33 dev_err(card->dev, "Codec dai not found\n");34 return -EINVAL;35 }36 37 if (SND_SOC_DAPM_EVENT_ON(event))38 ret = snd_soc_dai_set_sysclk(codec_dai, NAU8825_CLK_MCLK, 24000000,39 SND_SOC_CLOCK_IN);40 else41 ret = snd_soc_dai_set_sysclk(codec_dai, NAU8825_CLK_INTERNAL, 0, SND_SOC_CLOCK_IN);42 if (ret < 0)43 dev_err(card->dev, "Set sysclk failed: %d\n", ret);44 45 return ret;46}47 48static const struct snd_kcontrol_new card_controls[] = {49 SOC_DAPM_PIN_SWITCH("Headphone Jack"),50 SOC_DAPM_PIN_SWITCH("Headset Mic"),51};52 53static const struct snd_soc_dapm_widget card_widgets[] = {54 SND_SOC_DAPM_HP("Headphone Jack", NULL),55 SND_SOC_DAPM_MIC("Headset Mic", NULL),56 SND_SOC_DAPM_SUPPLY("Platform Clock", SND_SOC_NOPM, 0, 0, avs_nau8825_clock_control,57 SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD),58};59 60static const struct snd_soc_dapm_route card_base_routes[] = {61 { "Headphone Jack", NULL, "HPOL" },62 { "Headphone Jack", NULL, "HPOR" },63 64 { "MIC", NULL, "Headset Mic" },65 66 { "Headphone Jack", NULL, "Platform Clock" },67 { "Headset Mic", NULL, "Platform Clock" },68};69 70static const struct snd_soc_jack_pin card_headset_pins[] = {71 {72 .pin = "Headphone Jack",73 .mask = SND_JACK_HEADPHONE,74 },75 {76 .pin = "Headset Mic",77 .mask = SND_JACK_MICROPHONE,78 },79};80 81static int avs_nau8825_codec_init(struct snd_soc_pcm_runtime *runtime)82{83 struct snd_soc_card *card = runtime->card;84 struct snd_soc_jack_pin *pins;85 struct snd_soc_jack *jack;86 int num_pins, ret;87 88 jack = snd_soc_card_get_drvdata(card);89 num_pins = ARRAY_SIZE(card_headset_pins);90 91 pins = devm_kmemdup(card->dev, card_headset_pins, sizeof(*pins) * num_pins, GFP_KERNEL);92 if (!pins)93 return -ENOMEM;94 95 /*96 * 4 buttons here map to the google Reference headset.97 * The use of these buttons can be decided by the user space.98 */99 ret = snd_soc_card_jack_new_pins(card, "Headset Jack", SND_JACK_HEADSET | SND_JACK_BTN_0 |100 SND_JACK_BTN_1 | SND_JACK_BTN_2 | SND_JACK_BTN_3,101 jack, pins, num_pins);102 if (ret)103 return ret;104 105 snd_jack_set_key(jack->jack, SND_JACK_BTN_0, KEY_PLAYPAUSE);106 snd_jack_set_key(jack->jack, SND_JACK_BTN_1, KEY_VOICECOMMAND);107 snd_jack_set_key(jack->jack, SND_JACK_BTN_2, KEY_VOLUMEUP);108 snd_jack_set_key(jack->jack, SND_JACK_BTN_3, KEY_VOLUMEDOWN);109 110 return snd_soc_component_set_jack(snd_soc_rtd_to_codec(runtime, 0)->component, jack, NULL);111}112 113static void avs_nau8825_codec_exit(struct snd_soc_pcm_runtime *rtd)114{115 snd_soc_component_set_jack(snd_soc_rtd_to_codec(rtd, 0)->component, NULL, NULL);116}117 118static int119avs_nau8825_be_fixup(struct snd_soc_pcm_runtime *runtime, struct snd_pcm_hw_params *params)120{121 struct snd_interval *rate, *channels;122 struct snd_mask *fmt;123 124 rate = hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE);125 channels = hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS);126 fmt = hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT);127 128 /* The ADSP will convert the FE rate to 48k, stereo */129 rate->min = rate->max = 48000;130 channels->min = channels->max = 2;131 132 /* set SSP to 24 bit */133 snd_mask_none(fmt);134 snd_mask_set_format(fmt, SNDRV_PCM_FORMAT_S24_LE);135 136 return 0;137}138 139static int avs_nau8825_trigger(struct snd_pcm_substream *substream, int cmd)140{141 struct snd_pcm_runtime *runtime = substream->runtime;142 struct snd_soc_pcm_runtime *rtm = snd_soc_substream_to_rtd(substream);143 struct snd_soc_dai *codec_dai = snd_soc_rtd_to_codec(rtm, 0);144 int ret = 0;145 146 switch (cmd) {147 case SNDRV_PCM_TRIGGER_START:148 ret = snd_soc_dai_set_sysclk(codec_dai, NAU8825_CLK_FLL_FS, 0, SND_SOC_CLOCK_IN);149 if (ret < 0) {150 dev_err(codec_dai->dev, "can't set FS clock %d\n", ret);151 break;152 }153 154 ret = snd_soc_dai_set_pll(codec_dai, 0, 0, runtime->rate, runtime->rate * 256);155 if (ret < 0)156 dev_err(codec_dai->dev, "can't set FLL: %d\n", ret);157 break;158 159 case SNDRV_PCM_TRIGGER_RESUME:160 ret = snd_soc_dai_set_pll(codec_dai, 0, 0, runtime->rate, runtime->rate * 256);161 if (ret < 0)162 dev_err(codec_dai->dev, "can't set FLL: %d\n", ret);163 break;164 }165 166 return ret;167}168 169 170static const struct snd_soc_ops avs_nau8825_ops = {171 .trigger = avs_nau8825_trigger,172};173 174static int avs_create_dai_link(struct device *dev, const char *platform_name, int ssp_port,175 int tdm_slot, struct snd_soc_dai_link **dai_link)176{177 struct snd_soc_dai_link_component *platform;178 struct snd_soc_dai_link *dl;179 180 dl = devm_kzalloc(dev, sizeof(*dl), GFP_KERNEL);181 platform = devm_kzalloc(dev, sizeof(*platform), GFP_KERNEL);182 if (!dl || !platform)183 return -ENOMEM;184 185 platform->name = platform_name;186 187 dl->name = devm_kasprintf(dev, GFP_KERNEL,188 AVS_STRING_FMT("SSP", "-Codec", ssp_port, tdm_slot));189 dl->cpus = devm_kzalloc(dev, sizeof(*dl->cpus), GFP_KERNEL);190 dl->codecs = devm_kzalloc(dev, sizeof(*dl->codecs), GFP_KERNEL);191 if (!dl->name || !dl->cpus || !dl->codecs)192 return -ENOMEM;193 194 dl->cpus->dai_name = devm_kasprintf(dev, GFP_KERNEL,195 AVS_STRING_FMT("SSP", " Pin", ssp_port, tdm_slot));196 dl->codecs->name = devm_kasprintf(dev, GFP_KERNEL, "i2c-10508825:00");197 dl->codecs->dai_name = devm_kasprintf(dev, GFP_KERNEL, SKL_NUVOTON_CODEC_DAI);198 if (!dl->cpus->dai_name || !dl->codecs->name || !dl->codecs->dai_name)199 return -ENOMEM;200 201 dl->num_cpus = 1;202 dl->num_codecs = 1;203 dl->platforms = platform;204 dl->num_platforms = 1;205 dl->id = 0;206 dl->dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBS_CFS;207 dl->init = avs_nau8825_codec_init;208 dl->exit = avs_nau8825_codec_exit;209 dl->be_hw_params_fixup = avs_nau8825_be_fixup;210 dl->ops = &avs_nau8825_ops;211 dl->nonatomic = 1;212 dl->no_pcm = 1;213 dl->dpcm_capture = 1;214 dl->dpcm_playback = 1;215 216 *dai_link = dl;217 218 return 0;219}220 221static int avs_card_suspend_pre(struct snd_soc_card *card)222{223 struct snd_soc_dai *codec_dai = snd_soc_card_get_codec_dai(card, SKL_NUVOTON_CODEC_DAI);224 225 return snd_soc_component_set_jack(codec_dai->component, NULL, NULL);226}227 228static int avs_card_resume_post(struct snd_soc_card *card)229{230 struct snd_soc_dai *codec_dai = snd_soc_card_get_codec_dai(card, SKL_NUVOTON_CODEC_DAI);231 struct snd_soc_jack *jack = snd_soc_card_get_drvdata(card);232 int stream = SNDRV_PCM_STREAM_PLAYBACK;233 234 if (!codec_dai) {235 dev_err(card->dev, "Codec dai not found\n");236 return -EINVAL;237 }238 239 if (snd_soc_dai_stream_active(codec_dai, stream) &&240 snd_soc_dai_get_widget(codec_dai, stream)->active)241 snd_soc_dai_set_sysclk(codec_dai, NAU8825_CLK_FLL_FS, 0, SND_SOC_CLOCK_IN);242 243 return snd_soc_component_set_jack(codec_dai->component, jack, NULL);244}245 246static int avs_nau8825_probe(struct platform_device *pdev)247{248 struct snd_soc_dai_link *dai_link;249 struct snd_soc_acpi_mach *mach;250 struct snd_soc_card *card;251 struct snd_soc_jack *jack;252 struct device *dev = &pdev->dev;253 const char *pname;254 int ssp_port, tdm_slot, ret;255 256 mach = dev_get_platdata(dev);257 pname = mach->mach_params.platform;258 259 ret = avs_mach_get_ssp_tdm(dev, mach, &ssp_port, &tdm_slot);260 if (ret)261 return ret;262 263 ret = avs_create_dai_link(dev, pname, ssp_port, tdm_slot, &dai_link);264 if (ret) {265 dev_err(dev, "Failed to create dai link: %d", ret);266 return ret;267 }268 269 jack = devm_kzalloc(dev, sizeof(*jack), GFP_KERNEL);270 card = devm_kzalloc(dev, sizeof(*card), GFP_KERNEL);271 if (!jack || !card)272 return -ENOMEM;273 274 card->name = "avs_nau8825";275 card->dev = dev;276 card->owner = THIS_MODULE;277 card->suspend_pre = avs_card_suspend_pre;278 card->resume_post = avs_card_resume_post;279 card->dai_link = dai_link;280 card->num_links = 1;281 card->controls = card_controls;282 card->num_controls = ARRAY_SIZE(card_controls);283 card->dapm_widgets = card_widgets;284 card->num_dapm_widgets = ARRAY_SIZE(card_widgets);285 card->dapm_routes = card_base_routes;286 card->num_dapm_routes = ARRAY_SIZE(card_base_routes);287 card->fully_routed = true;288 snd_soc_card_set_drvdata(card, jack);289 290 ret = snd_soc_fixup_dai_links_platform_name(card, pname);291 if (ret)292 return ret;293 294 return devm_snd_soc_register_card(dev, card);295}296 297static const struct platform_device_id avs_nau8825_driver_ids[] = {298 {299 .name = "avs_nau8825",300 },301 {},302};303MODULE_DEVICE_TABLE(platform, avs_nau8825_driver_ids);304 305static struct platform_driver avs_nau8825_driver = {306 .probe = avs_nau8825_probe,307 .driver = {308 .name = "avs_nau8825",309 .pm = &snd_soc_pm_ops,310 },311 .id_table = avs_nau8825_driver_ids,312};313 314module_platform_driver(avs_nau8825_driver)315 316MODULE_DESCRIPTION("Intel nau8825 machine driver");317MODULE_LICENSE("GPL");318