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1// SPDX-License-Identifier: GPL-2.0-only2/*3 * ASoC machine driver for Intel Broadwell platforms with RT5650 codec4 *5 * Copyright 2019, The Chromium OS Authors. All rights reserved.6 */7 8#include <linux/delay.h>9#include <linux/gpio/consumer.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 19#include "../../codecs/rt5645.h"20 21struct bdw_rt5650_priv {22 struct gpio_desc *gpio_hp_en;23 struct snd_soc_component *component;24};25 26static const struct snd_soc_dapm_widget bdw_rt5650_widgets[] = {27 SND_SOC_DAPM_HP("Headphone", NULL),28 SND_SOC_DAPM_SPK("Speaker", NULL),29 SND_SOC_DAPM_MIC("Headset Mic", NULL),30 SND_SOC_DAPM_MIC("DMIC Pair1", NULL),31 SND_SOC_DAPM_MIC("DMIC Pair2", NULL),32};33 34static const struct snd_soc_dapm_route bdw_rt5650_map[] = {35 /* Speakers */36 {"Speaker", NULL, "SPOL"},37 {"Speaker", NULL, "SPOR"},38 39 /* Headset jack connectors */40 {"Headphone", NULL, "HPOL"},41 {"Headphone", NULL, "HPOR"},42 {"IN1P", NULL, "Headset Mic"},43 {"IN1N", NULL, "Headset Mic"},44 45 /* Digital MICs46 * DMIC Pair1 are the two DMICs connected on the DMICN1 connector.47 * DMIC Pair2 are the two DMICs connected on the DMICN2 connector.48 * Facing the camera, DMIC Pair1 are on the left side, DMIC Pair249 * are on the right side.50 */51 {"DMIC L1", NULL, "DMIC Pair1"},52 {"DMIC R1", NULL, "DMIC Pair1"},53 {"DMIC L2", NULL, "DMIC Pair2"},54 {"DMIC R2", NULL, "DMIC Pair2"},55 56 /* CODEC BE connections */57 {"SSP0 CODEC IN", NULL, "AIF1 Capture"},58 {"AIF1 Playback", NULL, "SSP0 CODEC OUT"},59};60 61static const struct snd_kcontrol_new bdw_rt5650_controls[] = {62 SOC_DAPM_PIN_SWITCH("Speaker"),63 SOC_DAPM_PIN_SWITCH("Headphone"),64 SOC_DAPM_PIN_SWITCH("Headset Mic"),65 SOC_DAPM_PIN_SWITCH("DMIC Pair1"),66 SOC_DAPM_PIN_SWITCH("DMIC Pair2"),67};68 69 70static struct snd_soc_jack headphone_jack;71static struct snd_soc_jack mic_jack;72 73static struct snd_soc_jack_pin headphone_jack_pin = {74 .pin = "Headphone",75 .mask = SND_JACK_HEADPHONE,76};77 78static struct snd_soc_jack_pin mic_jack_pin = {79 .pin = "Headset Mic",80 .mask = SND_JACK_MICROPHONE,81};82 83static int broadwell_ssp0_fixup(struct snd_soc_pcm_runtime *rtd,84 struct snd_pcm_hw_params *params)85{86 struct snd_interval *rate = hw_param_interval(params,87 SNDRV_PCM_HW_PARAM_RATE);88 struct snd_interval *chan = hw_param_interval(params,89 SNDRV_PCM_HW_PARAM_CHANNELS);90 91 /* The ADSP will convert the FE rate to 48k, max 4-channels */92 rate->min = rate->max = 48000;93 chan->min = 2;94 chan->max = 4;95 96 /* set SSP0 to 24 bit */97 snd_mask_set_format(hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT),98 SNDRV_PCM_FORMAT_S24_LE);99 100 return 0;101}102 103static int bdw_rt5650_hw_params(struct snd_pcm_substream *substream,104 struct snd_pcm_hw_params *params)105{106 struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream);107 struct snd_soc_dai *codec_dai = snd_soc_rtd_to_codec(rtd, 0);108 int ret;109 110 /* Workaround: set codec PLL to 19.2MHz that PLL source is111 * from MCLK(24MHz) to conform 2.4MHz DMIC clock.112 */113 ret = snd_soc_dai_set_pll(codec_dai, 0, RT5645_PLL1_S_MCLK,114 24000000, 19200000);115 if (ret < 0) {116 dev_err(rtd->dev, "can't set codec pll: %d\n", ret);117 return ret;118 }119 120 /* The actual MCLK freq is 24MHz. The codec is told that MCLK is121 * 24.576MHz to satisfy the requirement of rl6231_get_clk_info.122 * ASRC is enabled on AD and DA filters to ensure good audio quality.123 */124 ret = snd_soc_dai_set_sysclk(codec_dai, RT5645_SCLK_S_PLL1, 24576000,125 SND_SOC_CLOCK_IN);126 if (ret < 0) {127 dev_err(rtd->dev, "can't set codec sysclk configuration\n");128 return ret;129 }130 131 return ret;132}133 134static const struct snd_soc_ops bdw_rt5650_ops = {135 .hw_params = bdw_rt5650_hw_params,136};137 138static const unsigned int channels[] = {139 2, 4,140};141 142static const struct snd_pcm_hw_constraint_list constraints_channels = {143 .count = ARRAY_SIZE(channels),144 .list = channels,145 .mask = 0,146};147 148static int bdw_rt5650_fe_startup(struct snd_pcm_substream *substream)149{150 struct snd_pcm_runtime *runtime = substream->runtime;151 152 /* Board supports stereo and quad configurations for capture */153 if (substream->stream != SNDRV_PCM_STREAM_CAPTURE)154 return 0;155 156 runtime->hw.channels_max = 4;157 return snd_pcm_hw_constraint_list(runtime, 0,158 SNDRV_PCM_HW_PARAM_CHANNELS,159 &constraints_channels);160}161 162static const struct snd_soc_ops bdw_rt5650_fe_ops = {163 .startup = bdw_rt5650_fe_startup,164};165 166static int bdw_rt5650_init(struct snd_soc_pcm_runtime *rtd)167{168 struct bdw_rt5650_priv *bdw_rt5650 =169 snd_soc_card_get_drvdata(rtd->card);170 struct snd_soc_dai *codec_dai = snd_soc_rtd_to_codec(rtd, 0);171 struct snd_soc_component *component = codec_dai->component;172 int ret;173 174 /* Enable codec ASRC function for Stereo DAC/Stereo1 ADC/DMIC/I2S1.175 * The ASRC clock source is clk_i2s1_asrc.176 */177 rt5645_sel_asrc_clk_src(component,178 RT5645_DA_STEREO_FILTER |179 RT5645_DA_MONO_L_FILTER |180 RT5645_DA_MONO_R_FILTER |181 RT5645_AD_STEREO_FILTER |182 RT5645_AD_MONO_L_FILTER |183 RT5645_AD_MONO_R_FILTER,184 RT5645_CLK_SEL_I2S1_ASRC);185 186 /* TDM 4 slots 24 bit, set Rx & Tx bitmask to 4 active slots */187 ret = snd_soc_dai_set_tdm_slot(codec_dai, 0xF, 0xF, 4, 24);188 189 if (ret < 0) {190 dev_err(rtd->dev, "can't set codec TDM slot %d\n", ret);191 return ret;192 }193 194 /* Create and initialize headphone jack */195 if (snd_soc_card_jack_new_pins(rtd->card, "Headphone Jack",196 SND_JACK_HEADPHONE, &headphone_jack,197 &headphone_jack_pin, 1)) {198 dev_err(component->dev, "Can't create headphone jack\n");199 }200 201 /* Create and initialize mic jack */202 if (snd_soc_card_jack_new_pins(rtd->card, "Mic Jack",203 SND_JACK_MICROPHONE, &mic_jack, &mic_jack_pin, 1)) {204 dev_err(component->dev, "Can't create mic jack\n");205 }206 207 rt5645_set_jack_detect(component, &headphone_jack, &mic_jack, NULL);208 209 bdw_rt5650->component = component;210 211 return 0;212}213 214/* broadwell digital audio interface glue - connects codec <--> CPU */215SND_SOC_DAILINK_DEF(dummy,216 DAILINK_COMP_ARRAY(COMP_DUMMY()));217 218SND_SOC_DAILINK_DEF(fe,219 DAILINK_COMP_ARRAY(COMP_CPU("System Pin")));220 221SND_SOC_DAILINK_DEF(platform,222 DAILINK_COMP_ARRAY(COMP_PLATFORM("haswell-pcm-audio")));223 224SND_SOC_DAILINK_DEF(be,225 DAILINK_COMP_ARRAY(COMP_CODEC("i2c-10EC5650:00", "rt5645-aif1")));226 227SND_SOC_DAILINK_DEF(ssp0_port,228 DAILINK_COMP_ARRAY(COMP_CPU("ssp0-port")));229 230static struct snd_soc_dai_link bdw_rt5650_dais[] = {231 /* Front End DAI links */232 {233 .name = "System PCM",234 .stream_name = "System Playback",235 .nonatomic = 1,236 .dynamic = 1,237 .ops = &bdw_rt5650_fe_ops,238 .trigger = {239 SND_SOC_DPCM_TRIGGER_POST,240 SND_SOC_DPCM_TRIGGER_POST241 },242 .dpcm_playback = 1,243 .dpcm_capture = 1,244 SND_SOC_DAILINK_REG(fe, dummy, platform),245 },246 247 /* Back End DAI links */248 {249 /* SSP0 - Codec */250 .name = "Codec",251 .id = 0,252 .nonatomic = 1,253 .no_pcm = 1,254 .dai_fmt = SND_SOC_DAIFMT_DSP_B | SND_SOC_DAIFMT_NB_NF |255 SND_SOC_DAIFMT_CBC_CFC,256 .ignore_pmdown_time = 1,257 .be_hw_params_fixup = broadwell_ssp0_fixup,258 .ops = &bdw_rt5650_ops,259 .dpcm_playback = 1,260 .dpcm_capture = 1,261 .init = bdw_rt5650_init,262 SND_SOC_DAILINK_REG(ssp0_port, be, platform),263 },264};265 266/* use space before codec name to simplify card ID, and simplify driver name */267#define SOF_CARD_NAME "bdw rt5650" /* card name will be 'sof-bdw rt5650' */268#define SOF_DRIVER_NAME "SOF"269 270#define CARD_NAME "bdw-rt5650"271#define DRIVER_NAME NULL /* card name will be used for driver name */272 273/* ASoC machine driver for Broadwell DSP + RT5650 */274static struct snd_soc_card bdw_rt5650_card = {275 .name = CARD_NAME,276 .driver_name = DRIVER_NAME,277 .owner = THIS_MODULE,278 .dai_link = bdw_rt5650_dais,279 .num_links = ARRAY_SIZE(bdw_rt5650_dais),280 .dapm_widgets = bdw_rt5650_widgets,281 .num_dapm_widgets = ARRAY_SIZE(bdw_rt5650_widgets),282 .dapm_routes = bdw_rt5650_map,283 .num_dapm_routes = ARRAY_SIZE(bdw_rt5650_map),284 .controls = bdw_rt5650_controls,285 .num_controls = ARRAY_SIZE(bdw_rt5650_controls),286 .fully_routed = true,287};288 289static int bdw_rt5650_probe(struct platform_device *pdev)290{291 struct bdw_rt5650_priv *bdw_rt5650;292 struct snd_soc_acpi_mach *mach;293 int ret;294 295 bdw_rt5650_card.dev = &pdev->dev;296 297 /* Allocate driver private struct */298 bdw_rt5650 = devm_kzalloc(&pdev->dev, sizeof(struct bdw_rt5650_priv),299 GFP_KERNEL);300 if (!bdw_rt5650)301 return -ENOMEM;302 303 /* override platform name, if required */304 mach = pdev->dev.platform_data;305 ret = snd_soc_fixup_dai_links_platform_name(&bdw_rt5650_card,306 mach->mach_params.platform);307 308 if (ret)309 return ret;310 311 /* set card and driver name */312 if (snd_soc_acpi_sof_parent(&pdev->dev)) {313 bdw_rt5650_card.name = SOF_CARD_NAME;314 bdw_rt5650_card.driver_name = SOF_DRIVER_NAME;315 } else {316 bdw_rt5650_card.name = CARD_NAME;317 bdw_rt5650_card.driver_name = DRIVER_NAME;318 }319 320 snd_soc_card_set_drvdata(&bdw_rt5650_card, bdw_rt5650);321 322 return devm_snd_soc_register_card(&pdev->dev, &bdw_rt5650_card);323}324 325static struct platform_driver bdw_rt5650_audio = {326 .probe = bdw_rt5650_probe,327 .driver = {328 .name = "bdw-rt5650",329 .pm = &snd_soc_pm_ops,330 },331};332 333module_platform_driver(bdw_rt5650_audio)334 335/* Module information */336MODULE_AUTHOR("Ben Zhang <benzh@chromium.org>");337MODULE_DESCRIPTION("Intel Broadwell RT5650 machine driver");338MODULE_LICENSE("GPL v2");339MODULE_ALIAS("platform:bdw-rt5650");340