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1// SPDX-License-Identifier: GPL-2.0-only2/*3 * Copyright (c) 2015 The Linux Foundation. All rights reserved.4 */5 6#include <linux/device.h>7#include <linux/module.h>8#include <linux/kernel.h>9#include <linux/io.h>10#include <linux/of.h>11#include <linux/clk.h>12#include <linux/platform_device.h>13#include <sound/pcm.h>14#include <sound/pcm_params.h>15#include <sound/jack.h>16#include <sound/soc.h>17#include <uapi/linux/input-event-codes.h>18#include <dt-bindings/sound/apq8016-lpass.h>19#include <dt-bindings/sound/qcom,q6afe.h>20#include "common.h"21#include "qdsp6/q6afe.h"22 23#define MI2S_COUNT (MI2S_QUATERNARY + 1)24 25struct apq8016_sbc_data {26 struct snd_soc_card card;27 void __iomem *mic_iomux;28 void __iomem *spkr_iomux;29 struct snd_soc_jack jack;30 bool jack_setup;31 int mi2s_clk_count[MI2S_COUNT];32};33 34#define MIC_CTRL_TER_WS_SLAVE_SEL BIT(21)35#define MIC_CTRL_QUA_WS_SLAVE_SEL_10 BIT(17)36#define MIC_CTRL_TLMM_SCLK_EN BIT(1)37#define SPKR_CTL_PRI_WS_SLAVE_SEL_11 (BIT(17) | BIT(16))38#define SPKR_CTL_TLMM_MCLK_EN BIT(1)39#define SPKR_CTL_TLMM_SCLK_EN BIT(2)40#define SPKR_CTL_TLMM_DATA1_EN BIT(3)41#define SPKR_CTL_TLMM_WS_OUT_SEL_MASK GENMASK(7, 6)42#define SPKR_CTL_TLMM_WS_OUT_SEL_SEC BIT(6)43#define SPKR_CTL_TLMM_WS_EN_SEL_MASK GENMASK(19, 18)44#define SPKR_CTL_TLMM_WS_EN_SEL_SEC BIT(18)45#define DEFAULT_MCLK_RATE 960000046#define MI2S_BCLK_RATE 153600047 48static struct snd_soc_jack_pin apq8016_sbc_jack_pins[] = {49 {50 .pin = "Mic Jack",51 .mask = SND_JACK_MICROPHONE,52 },53 {54 .pin = "Headphone Jack",55 .mask = SND_JACK_HEADPHONE,56 },57};58 59static int apq8016_dai_init(struct snd_soc_pcm_runtime *rtd, int mi2s)60{61 struct snd_soc_dai *codec_dai;62 struct snd_soc_component *component;63 struct snd_soc_card *card = rtd->card;64 struct apq8016_sbc_data *pdata = snd_soc_card_get_drvdata(card);65 int i, rval;66 u32 value;67 68 switch (mi2s) {69 case MI2S_PRIMARY:70 writel(readl(pdata->spkr_iomux) | SPKR_CTL_PRI_WS_SLAVE_SEL_11,71 pdata->spkr_iomux);72 break;73 74 case MI2S_QUATERNARY:75 /* Configure the Quat MI2S to TLMM */76 writel(readl(pdata->mic_iomux) | MIC_CTRL_QUA_WS_SLAVE_SEL_10 |77 MIC_CTRL_TLMM_SCLK_EN,78 pdata->mic_iomux);79 break;80 case MI2S_SECONDARY:81 /* Clear TLMM_WS_OUT_SEL and TLMM_WS_EN_SEL fields */82 value = readl(pdata->spkr_iomux) &83 ~(SPKR_CTL_TLMM_WS_OUT_SEL_MASK | SPKR_CTL_TLMM_WS_EN_SEL_MASK);84 /* Configure the Sec MI2S to TLMM */85 writel(value | SPKR_CTL_TLMM_MCLK_EN | SPKR_CTL_TLMM_SCLK_EN |86 SPKR_CTL_TLMM_DATA1_EN | SPKR_CTL_TLMM_WS_OUT_SEL_SEC |87 SPKR_CTL_TLMM_WS_EN_SEL_SEC, pdata->spkr_iomux);88 break;89 case MI2S_TERTIARY:90 writel(readl(pdata->mic_iomux) | MIC_CTRL_TER_WS_SLAVE_SEL |91 MIC_CTRL_TLMM_SCLK_EN,92 pdata->mic_iomux);93 94 break;95 96 default:97 dev_err(card->dev, "unsupported cpu dai configuration\n");98 return -EINVAL;99 100 }101 102 if (!pdata->jack_setup) {103 struct snd_jack *jack;104 105 rval = snd_soc_card_jack_new_pins(card, "Headset Jack",106 SND_JACK_HEADSET |107 SND_JACK_HEADPHONE |108 SND_JACK_BTN_0 | SND_JACK_BTN_1 |109 SND_JACK_BTN_2 | SND_JACK_BTN_3 |110 SND_JACK_BTN_4,111 &pdata->jack,112 apq8016_sbc_jack_pins,113 ARRAY_SIZE(apq8016_sbc_jack_pins));114 115 if (rval < 0) {116 dev_err(card->dev, "Unable to add Headphone Jack\n");117 return rval;118 }119 120 jack = pdata->jack.jack;121 122 snd_jack_set_key(jack, SND_JACK_BTN_0, KEY_PLAYPAUSE);123 snd_jack_set_key(jack, SND_JACK_BTN_1, KEY_VOICECOMMAND);124 snd_jack_set_key(jack, SND_JACK_BTN_2, KEY_VOLUMEUP);125 snd_jack_set_key(jack, SND_JACK_BTN_3, KEY_VOLUMEDOWN);126 pdata->jack_setup = true;127 }128 129 for_each_rtd_codec_dais(rtd, i, codec_dai) {130 131 component = codec_dai->component;132 /* Set default mclk for internal codec */133 rval = snd_soc_component_set_sysclk(component, 0, 0, DEFAULT_MCLK_RATE,134 SND_SOC_CLOCK_IN);135 if (rval != 0 && rval != -ENOTSUPP) {136 dev_warn(card->dev, "Failed to set mclk: %d\n", rval);137 return rval;138 }139 rval = snd_soc_component_set_jack(component, &pdata->jack, NULL);140 if (rval != 0 && rval != -ENOTSUPP) {141 dev_warn(card->dev, "Failed to set jack: %d\n", rval);142 return rval;143 }144 }145 146 return 0;147}148 149static int apq8016_sbc_dai_init(struct snd_soc_pcm_runtime *rtd)150{151 struct snd_soc_dai *cpu_dai = snd_soc_rtd_to_cpu(rtd, 0);152 153 return apq8016_dai_init(rtd, cpu_dai->id);154}155 156static void apq8016_sbc_add_ops(struct snd_soc_card *card)157{158 struct snd_soc_dai_link *link;159 int i;160 161 for_each_card_prelinks(card, i, link)162 link->init = apq8016_sbc_dai_init;163}164 165static int qdsp6_dai_get_lpass_id(struct snd_soc_dai *cpu_dai)166{167 switch (cpu_dai->id) {168 case PRIMARY_MI2S_RX:169 case PRIMARY_MI2S_TX:170 return MI2S_PRIMARY;171 case SECONDARY_MI2S_RX:172 case SECONDARY_MI2S_TX:173 return MI2S_SECONDARY;174 case TERTIARY_MI2S_RX:175 case TERTIARY_MI2S_TX:176 return MI2S_TERTIARY;177 case QUATERNARY_MI2S_RX:178 case QUATERNARY_MI2S_TX:179 return MI2S_QUATERNARY;180 default:181 return -EINVAL;182 }183}184 185static int msm8916_qdsp6_dai_init(struct snd_soc_pcm_runtime *rtd)186{187 struct snd_soc_dai *cpu_dai = snd_soc_rtd_to_cpu(rtd, 0);188 189 snd_soc_dai_set_fmt(cpu_dai, SND_SOC_DAIFMT_BP_FP);190 return apq8016_dai_init(rtd, qdsp6_dai_get_lpass_id(cpu_dai));191}192 193static int msm8916_qdsp6_startup(struct snd_pcm_substream *substream)194{195 struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream);196 struct snd_soc_card *card = rtd->card;197 struct apq8016_sbc_data *data = snd_soc_card_get_drvdata(card);198 struct snd_soc_dai *cpu_dai = snd_soc_rtd_to_cpu(rtd, 0);199 int mi2s, ret;200 201 mi2s = qdsp6_dai_get_lpass_id(cpu_dai);202 if (mi2s < 0)203 return mi2s;204 205 if (++data->mi2s_clk_count[mi2s] > 1)206 return 0;207 208 ret = snd_soc_dai_set_sysclk(cpu_dai, LPAIF_BIT_CLK, MI2S_BCLK_RATE, 0);209 if (ret)210 dev_err(card->dev, "Failed to enable LPAIF bit clk: %d\n", ret);211 return ret;212}213 214static void msm8916_qdsp6_shutdown(struct snd_pcm_substream *substream)215{216 struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream);217 struct snd_soc_card *card = rtd->card;218 struct apq8016_sbc_data *data = snd_soc_card_get_drvdata(card);219 struct snd_soc_dai *cpu_dai = snd_soc_rtd_to_cpu(rtd, 0);220 int mi2s, ret;221 222 mi2s = qdsp6_dai_get_lpass_id(cpu_dai);223 if (mi2s < 0)224 return;225 226 if (--data->mi2s_clk_count[mi2s] > 0)227 return;228 229 ret = snd_soc_dai_set_sysclk(cpu_dai, LPAIF_BIT_CLK, 0, 0);230 if (ret)231 dev_err(card->dev, "Failed to disable LPAIF bit clk: %d\n", ret);232}233 234static const struct snd_soc_ops msm8916_qdsp6_be_ops = {235 .startup = msm8916_qdsp6_startup,236 .shutdown = msm8916_qdsp6_shutdown,237};238 239static int msm8916_qdsp6_be_hw_params_fixup(struct snd_soc_pcm_runtime *rtd,240 struct snd_pcm_hw_params *params)241{242 struct snd_interval *rate = hw_param_interval(params,243 SNDRV_PCM_HW_PARAM_RATE);244 struct snd_interval *channels = hw_param_interval(params,245 SNDRV_PCM_HW_PARAM_CHANNELS);246 struct snd_mask *fmt = hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT);247 248 rate->min = rate->max = 48000;249 channels->min = channels->max = 2;250 snd_mask_set_format(fmt, SNDRV_PCM_FORMAT_S16_LE);251 252 return 0;253}254 255static void msm8916_qdsp6_add_ops(struct snd_soc_card *card)256{257 struct snd_soc_dai_link *link;258 int i;259 260 /* Make it obvious to userspace that QDSP6 is used */261 card->components = "qdsp6";262 263 for_each_card_prelinks(card, i, link) {264 if (link->no_pcm) {265 link->init = msm8916_qdsp6_dai_init;266 link->ops = &msm8916_qdsp6_be_ops;267 link->be_hw_params_fixup = msm8916_qdsp6_be_hw_params_fixup;268 }269 }270}271 272static const struct snd_kcontrol_new apq8016_sbc_snd_controls[] = {273 SOC_DAPM_PIN_SWITCH("Headphone Jack"),274 SOC_DAPM_PIN_SWITCH("Mic Jack"),275};276 277static const struct snd_soc_dapm_widget apq8016_sbc_dapm_widgets[] = {278 SND_SOC_DAPM_HP("Headphone Jack", NULL),279 SND_SOC_DAPM_MIC("Mic Jack", NULL),280 SND_SOC_DAPM_MIC("Handset Mic", NULL),281 SND_SOC_DAPM_MIC("Headset Mic", NULL),282 SND_SOC_DAPM_MIC("Secondary Mic", NULL),283 SND_SOC_DAPM_MIC("Digital Mic1", NULL),284 SND_SOC_DAPM_MIC("Digital Mic2", NULL),285};286 287static int apq8016_sbc_platform_probe(struct platform_device *pdev)288{289 void (*add_ops)(struct snd_soc_card *card);290 struct device *dev = &pdev->dev;291 struct snd_soc_card *card;292 struct apq8016_sbc_data *data;293 int ret;294 295 add_ops = device_get_match_data(&pdev->dev);296 if (!add_ops)297 return -EINVAL;298 299 data = devm_kzalloc(dev, sizeof(*data), GFP_KERNEL);300 if (!data)301 return -ENOMEM;302 303 card = &data->card;304 card->dev = dev;305 card->owner = THIS_MODULE;306 card->dapm_widgets = apq8016_sbc_dapm_widgets;307 card->num_dapm_widgets = ARRAY_SIZE(apq8016_sbc_dapm_widgets);308 card->controls = apq8016_sbc_snd_controls;309 card->num_controls = ARRAY_SIZE(apq8016_sbc_snd_controls);310 311 ret = qcom_snd_parse_of(card);312 if (ret)313 return ret;314 315 data->mic_iomux = devm_platform_ioremap_resource_byname(pdev, "mic-iomux");316 if (IS_ERR(data->mic_iomux))317 return PTR_ERR(data->mic_iomux);318 319 data->spkr_iomux = devm_platform_ioremap_resource_byname(pdev, "spkr-iomux");320 if (IS_ERR(data->spkr_iomux))321 return PTR_ERR(data->spkr_iomux);322 323 snd_soc_card_set_drvdata(card, data);324 325 add_ops(card);326 return devm_snd_soc_register_card(&pdev->dev, card);327}328 329static const struct of_device_id apq8016_sbc_device_id[] __maybe_unused = {330 { .compatible = "qcom,apq8016-sbc-sndcard", .data = apq8016_sbc_add_ops },331 { .compatible = "qcom,msm8916-qdsp6-sndcard", .data = msm8916_qdsp6_add_ops },332 {},333};334MODULE_DEVICE_TABLE(of, apq8016_sbc_device_id);335 336static struct platform_driver apq8016_sbc_platform_driver = {337 .driver = {338 .name = "qcom-apq8016-sbc",339 .of_match_table = of_match_ptr(apq8016_sbc_device_id),340 },341 .probe = apq8016_sbc_platform_probe,342};343module_platform_driver(apq8016_sbc_platform_driver);344 345MODULE_AUTHOR("Srinivas Kandagatla <srinivas.kandagatla@linaro.org");346MODULE_DESCRIPTION("APQ8016 ASoC Machine Driver");347MODULE_LICENSE("GPL");348