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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/module.h>10#include <sound/jack.h>11#include <sound/pcm.h>12#include <sound/pcm_params.h>13#include <sound/soc.h>14#include <sound/soc-acpi.h>15#include "../../../codecs/rt274.h"16#include "../utils.h"17 18#define AVS_RT274_FREQ_OUT 2400000019#define AVS_RT274_BE_FIXUP_RATE 4800020#define RT274_CODEC_DAI "rt274-aif1"21 22static const struct snd_kcontrol_new card_controls[] = {23 SOC_DAPM_PIN_SWITCH("Headphone Jack"),24 SOC_DAPM_PIN_SWITCH("Mic Jack"),25};26 27static int28avs_rt274_clock_control(struct snd_soc_dapm_widget *w, struct snd_kcontrol *control, int event)29{30 struct snd_soc_dapm_context *dapm = w->dapm;31 struct snd_soc_card *card = dapm->card;32 struct snd_soc_dai *codec_dai;33 int ret;34 35 codec_dai = snd_soc_card_get_codec_dai(card, RT274_CODEC_DAI);36 if (!codec_dai)37 return -EINVAL;38 39 /* Codec needs clock for Jack detection and button press */40 ret = snd_soc_dai_set_sysclk(codec_dai, RT274_SCLK_S_PLL2, AVS_RT274_FREQ_OUT,41 SND_SOC_CLOCK_IN);42 if (ret < 0) {43 dev_err(codec_dai->dev, "set codec sysclk failed: %d\n", ret);44 return ret;45 }46 47 if (SND_SOC_DAPM_EVENT_ON(event)) {48 int ratio = 100;49 50 snd_soc_dai_set_bclk_ratio(codec_dai, ratio);51 52 ret = snd_soc_dai_set_pll(codec_dai, 0, RT274_PLL2_S_BCLK,53 AVS_RT274_BE_FIXUP_RATE * ratio, AVS_RT274_FREQ_OUT);54 if (ret) {55 dev_err(codec_dai->dev, "failed to enable PLL2: %d\n", ret);56 return ret;57 }58 }59 60 return 0;61}62 63static const struct snd_soc_dapm_widget card_widgets[] = {64 SND_SOC_DAPM_HP("Headphone Jack", NULL),65 SND_SOC_DAPM_MIC("Mic Jack", NULL),66 SND_SOC_DAPM_SUPPLY("Platform Clock", SND_SOC_NOPM, 0, 0, avs_rt274_clock_control,67 SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD),68};69 70static const struct snd_soc_dapm_route card_base_routes[] = {71 {"Headphone Jack", NULL, "HPO Pin"},72 {"MIC", NULL, "Mic Jack"},73 74 {"Headphone Jack", NULL, "Platform Clock"},75 {"MIC", NULL, "Platform Clock"},76};77 78static const struct snd_soc_jack_pin card_headset_pins[] = {79 {80 .pin = "Headphone Jack",81 .mask = SND_JACK_HEADPHONE,82 },83 {84 .pin = "Mic Jack",85 .mask = SND_JACK_MICROPHONE,86 },87};88 89static int avs_rt274_codec_init(struct snd_soc_pcm_runtime *runtime)90{91 struct snd_soc_dai *codec_dai = snd_soc_rtd_to_codec(runtime, 0);92 struct snd_soc_component *component = codec_dai->component;93 struct snd_soc_jack_pin *pins;94 struct snd_soc_jack *jack;95 struct snd_soc_card *card = runtime->card;96 int num_pins, ret;97 98 jack = snd_soc_card_get_drvdata(card);99 num_pins = ARRAY_SIZE(card_headset_pins);100 101 pins = devm_kmemdup(card->dev, card_headset_pins, sizeof(*pins) * num_pins, GFP_KERNEL);102 if (!pins)103 return -ENOMEM;104 105 ret = snd_soc_card_jack_new_pins(card, "Headset Jack", SND_JACK_HEADSET, jack, pins,106 num_pins);107 if (ret)108 return ret;109 110 snd_soc_component_set_jack(component, jack, NULL);111 112 /* TDM 4 slots 24 bit, set Rx & Tx bitmask to 4 active slots */113 ret = snd_soc_dai_set_tdm_slot(codec_dai, 0xF, 0xF, 4, 24);114 if (ret < 0) {115 dev_err(card->dev, "can't set codec pcm format %d\n", ret);116 return ret;117 }118 119 card->dapm.idle_bias_off = true;120 121 return 0;122}123 124static void avs_rt274_codec_exit(struct snd_soc_pcm_runtime *rtd)125{126 snd_soc_component_set_jack(snd_soc_rtd_to_codec(rtd, 0)->component, NULL, NULL);127}128 129static int avs_rt274_be_fixup(struct snd_soc_pcm_runtime *runtime, struct snd_pcm_hw_params *params)130{131 struct snd_interval *rate, *channels;132 struct snd_mask *fmt;133 134 rate = hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE);135 channels = hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS);136 fmt = hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT);137 138 /* The ADSP will convert the FE rate to 48k, stereo */139 rate->min = rate->max = AVS_RT274_BE_FIXUP_RATE;140 channels->min = channels->max = 2;141 142 /* set SSPN to 24 bit */143 snd_mask_none(fmt);144 snd_mask_set_format(fmt, SNDRV_PCM_FORMAT_S24_LE);145 146 return 0;147}148 149static int avs_create_dai_link(struct device *dev, const char *platform_name, int ssp_port,150 int tdm_slot, struct snd_soc_dai_link **dai_link)151{152 struct snd_soc_dai_link_component *platform;153 struct snd_soc_dai_link *dl;154 155 dl = devm_kzalloc(dev, sizeof(*dl), GFP_KERNEL);156 platform = devm_kzalloc(dev, sizeof(*platform), GFP_KERNEL);157 if (!dl || !platform)158 return -ENOMEM;159 160 platform->name = platform_name;161 162 dl->name = devm_kasprintf(dev, GFP_KERNEL,163 AVS_STRING_FMT("SSP", "-Codec", ssp_port, tdm_slot));164 dl->cpus = devm_kzalloc(dev, sizeof(*dl->cpus), GFP_KERNEL);165 dl->codecs = devm_kzalloc(dev, sizeof(*dl->codecs), GFP_KERNEL);166 if (!dl->name || !dl->cpus || !dl->codecs)167 return -ENOMEM;168 169 dl->cpus->dai_name = devm_kasprintf(dev, GFP_KERNEL,170 AVS_STRING_FMT("SSP", " Pin", ssp_port, tdm_slot));171 dl->codecs->name = devm_kasprintf(dev, GFP_KERNEL, "i2c-INT34C2:00");172 dl->codecs->dai_name = devm_kasprintf(dev, GFP_KERNEL, RT274_CODEC_DAI);173 if (!dl->cpus->dai_name || !dl->codecs->name || !dl->codecs->dai_name)174 return -ENOMEM;175 176 dl->num_cpus = 1;177 dl->num_codecs = 1;178 dl->platforms = platform;179 dl->num_platforms = 1;180 dl->id = 0;181 dl->dai_fmt = SND_SOC_DAIFMT_DSP_A | SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBS_CFS;182 dl->init = avs_rt274_codec_init;183 dl->exit = avs_rt274_codec_exit;184 dl->be_hw_params_fixup = avs_rt274_be_fixup;185 dl->nonatomic = 1;186 dl->no_pcm = 1;187 dl->dpcm_capture = 1;188 dl->dpcm_playback = 1;189 190 *dai_link = dl;191 192 return 0;193}194 195static int avs_card_suspend_pre(struct snd_soc_card *card)196{197 struct snd_soc_dai *codec_dai = snd_soc_card_get_codec_dai(card, RT274_CODEC_DAI);198 199 return snd_soc_component_set_jack(codec_dai->component, NULL, NULL);200}201 202static int avs_card_resume_post(struct snd_soc_card *card)203{204 struct snd_soc_dai *codec_dai = snd_soc_card_get_codec_dai(card, RT274_CODEC_DAI);205 struct snd_soc_jack *jack = snd_soc_card_get_drvdata(card);206 207 return snd_soc_component_set_jack(codec_dai->component, jack, NULL);208}209 210static int avs_rt274_probe(struct platform_device *pdev)211{212 struct snd_soc_dai_link *dai_link;213 struct snd_soc_acpi_mach *mach;214 struct snd_soc_card *card;215 struct snd_soc_jack *jack;216 struct device *dev = &pdev->dev;217 const char *pname;218 int ssp_port, tdm_slot, ret;219 220 mach = dev_get_platdata(dev);221 pname = mach->mach_params.platform;222 223 ret = avs_mach_get_ssp_tdm(dev, mach, &ssp_port, &tdm_slot);224 if (ret)225 return ret;226 227 ret = avs_create_dai_link(dev, pname, ssp_port, tdm_slot, &dai_link);228 if (ret) {229 dev_err(dev, "Failed to create dai link: %d", ret);230 return ret;231 }232 233 jack = devm_kzalloc(dev, sizeof(*jack), GFP_KERNEL);234 card = devm_kzalloc(dev, sizeof(*card), GFP_KERNEL);235 if (!jack || !card)236 return -ENOMEM;237 238 card->name = "avs_rt274";239 card->dev = dev;240 card->owner = THIS_MODULE;241 card->suspend_pre = avs_card_suspend_pre;242 card->resume_post = avs_card_resume_post;243 card->dai_link = dai_link;244 card->num_links = 1;245 card->controls = card_controls;246 card->num_controls = ARRAY_SIZE(card_controls);247 card->dapm_widgets = card_widgets;248 card->num_dapm_widgets = ARRAY_SIZE(card_widgets);249 card->dapm_routes = card_base_routes;250 card->num_dapm_routes = ARRAY_SIZE(card_base_routes);251 card->fully_routed = true;252 snd_soc_card_set_drvdata(card, jack);253 254 ret = snd_soc_fixup_dai_links_platform_name(card, pname);255 if (ret)256 return ret;257 258 return devm_snd_soc_register_card(dev, card);259}260 261static const struct platform_device_id avs_rt274_driver_ids[] = {262 {263 .name = "avs_rt274",264 },265 {},266};267MODULE_DEVICE_TABLE(platform, avs_rt274_driver_ids);268 269static struct platform_driver avs_rt274_driver = {270 .probe = avs_rt274_probe,271 .driver = {272 .name = "avs_rt274",273 .pm = &snd_soc_pm_ops,274 },275 .id_table = avs_rt274_driver_ids,276};277 278module_platform_driver(avs_rt274_driver);279 280MODULE_DESCRIPTION("Intel rt274 machine driver");281MODULE_LICENSE("GPL");282