1 // SPDX-License-Identifier: GPL-2.0-only 2 // 3 // Copyright(c) 2023 Intel Corporation 4 // 5 // Authors: Cezary Rojewski <cezary.rojewski@intel.com> 6 // Amadeusz Slawinski <amadeuszx.slawinski@linux.intel.com> 7 // 8 9 #include <linux/device.h> 10 #include <linux/gpio/consumer.h> 11 #include <linux/input.h> 12 #include <linux/module.h> 13 #include <linux/platform_device.h> 14 #include <linux/processor.h> 15 #include <linux/slab.h> 16 #include <sound/jack.h> 17 #include <sound/pcm.h> 18 #include <sound/pcm_params.h> 19 #include <sound/soc.h> 20 #include <sound/soc-acpi.h> 21 #include <asm/cpu_device_id.h> 22 #include "../utils.h" 23 24 #define ES8336_CODEC_DAI "ES8316 HiFi" 25 26 struct avs_card_drvdata { 27 struct snd_soc_jack jack; 28 struct gpio_desc *gpiod; 29 }; 30 31 static const struct acpi_gpio_params enable_gpio = { 0, 0, true }; 32 33 static const struct acpi_gpio_mapping speaker_gpios[] = { 34 { "speaker-enable-gpios", &enable_gpio, 1, ACPI_GPIO_QUIRK_ONLY_GPIOIO }, 35 { } 36 }; 37 38 static int avs_es8336_speaker_power_event(struct snd_soc_dapm_widget *w, 39 struct snd_kcontrol *kcontrol, int event) 40 { 41 struct snd_soc_card *card = w->dapm->card; 42 struct avs_card_drvdata *data; 43 bool speaker_en; 44 45 data = snd_soc_card_get_drvdata(card); 46 /* As enable_gpio has active_low=true, logic is inverted. */ 47 speaker_en = !SND_SOC_DAPM_EVENT_ON(event); 48 49 gpiod_set_value_cansleep(data->gpiod, speaker_en); 50 return 0; 51 } 52 53 static const struct snd_soc_dapm_widget card_widgets[] = { 54 SND_SOC_DAPM_SPK("Speaker", NULL), 55 SND_SOC_DAPM_HP("Headphone", NULL), 56 SND_SOC_DAPM_MIC("Headset Mic", NULL), 57 SND_SOC_DAPM_MIC("Internal Mic", NULL), 58 59 SND_SOC_DAPM_SUPPLY("Speaker Power", SND_SOC_NOPM, 0, 0, 60 avs_es8336_speaker_power_event, 61 SND_SOC_DAPM_PRE_PMD | SND_SOC_DAPM_POST_PMU), 62 }; 63 64 static const struct snd_soc_dapm_route card_routes[] = { 65 {"Headphone", NULL, "HPOL"}, 66 {"Headphone", NULL, "HPOR"}, 67 68 /* 69 * There is no separate speaker output instead the speakers are muxed to 70 * the HP outputs. The mux is controlled by the "Speaker Power" widget. 71 */ 72 {"Speaker", NULL, "HPOL"}, 73 {"Speaker", NULL, "HPOR"}, 74 {"Speaker", NULL, "Speaker Power"}, 75 76 /* Mic route map */ 77 {"MIC1", NULL, "Internal Mic"}, 78 {"MIC2", NULL, "Headset Mic"}, 79 }; 80 81 static const struct snd_kcontrol_new card_controls[] = { 82 SOC_DAPM_PIN_SWITCH("Speaker"), 83 SOC_DAPM_PIN_SWITCH("Headphone"), 84 SOC_DAPM_PIN_SWITCH("Headset Mic"), 85 SOC_DAPM_PIN_SWITCH("Internal Mic"), 86 }; 87 88 static const struct snd_soc_jack_pin card_headset_pins[] = { 89 { 90 .pin = "Headphone", 91 .mask = SND_JACK_HEADPHONE, 92 }, 93 { 94 .pin = "Headset Mic", 95 .mask = SND_JACK_MICROPHONE, 96 }, 97 }; 98 99 static int avs_es8336_codec_init(struct snd_soc_pcm_runtime *runtime) 100 { 101 struct snd_soc_dai *codec_dai = snd_soc_rtd_to_codec(runtime, 0); 102 struct snd_soc_component *component = codec_dai->component; 103 struct snd_soc_card *card = runtime->card; 104 struct snd_soc_jack_pin *pins; 105 struct avs_card_drvdata *data; 106 struct gpio_desc *gpiod; 107 int num_pins, ret; 108 109 data = snd_soc_card_get_drvdata(card); 110 num_pins = ARRAY_SIZE(card_headset_pins); 111 112 pins = devm_kmemdup_array(card->dev, card_headset_pins, num_pins, 113 sizeof(card_headset_pins[0]), GFP_KERNEL); 114 if (!pins) 115 return -ENOMEM; 116 117 ret = snd_soc_card_jack_new_pins(card, "Headset Jack", SND_JACK_HEADSET | SND_JACK_BTN_0, 118 &data->jack, pins, num_pins); 119 if (ret) 120 return ret; 121 122 ret = devm_acpi_dev_add_driver_gpios(codec_dai->dev, speaker_gpios); 123 if (ret) 124 dev_warn(codec_dai->dev, "Unable to add GPIO mapping table\n"); 125 126 gpiod = gpiod_get_optional(codec_dai->dev, "speaker-enable", GPIOD_OUT_LOW); 127 if (IS_ERR(gpiod)) 128 return dev_err_probe(codec_dai->dev, PTR_ERR(gpiod), "Get gpiod failed: %ld\n", 129 PTR_ERR(gpiod)); 130 131 data->gpiod = gpiod; 132 snd_jack_set_key(data->jack.jack, SND_JACK_BTN_0, KEY_PLAYPAUSE); 133 snd_soc_component_set_jack(component, &data->jack, NULL); 134 135 card->dapm.idle_bias_off = true; 136 137 return 0; 138 } 139 140 static void avs_es8336_codec_exit(struct snd_soc_pcm_runtime *runtime) 141 { 142 struct avs_card_drvdata *data = snd_soc_card_get_drvdata(runtime->card); 143 struct snd_soc_dai *codec_dai = snd_soc_rtd_to_codec(runtime, 0); 144 145 snd_soc_component_set_jack(codec_dai->component, NULL, NULL); 146 gpiod_put(data->gpiod); 147 } 148 149 static int avs_es8336_hw_params(struct snd_pcm_substream *substream, 150 struct snd_pcm_hw_params *params) 151 { 152 struct snd_soc_pcm_runtime *runtime = snd_soc_substream_to_rtd(substream); 153 struct snd_soc_dai *codec_dai = snd_soc_rtd_to_codec(runtime, 0); 154 int clk_freq; 155 int ret; 156 157 switch (boot_cpu_data.x86_vfm) { 158 case INTEL_KABYLAKE_L: 159 case INTEL_KABYLAKE: 160 clk_freq = 24000000; 161 break; 162 default: 163 clk_freq = 19200000; 164 break; 165 } 166 167 ret = snd_soc_dai_set_sysclk(codec_dai, 1, clk_freq, SND_SOC_CLOCK_OUT); 168 if (ret < 0) 169 dev_err(runtime->dev, "Set codec sysclk failed: %d\n", ret); 170 171 return ret; 172 } 173 174 static const struct snd_soc_ops avs_es8336_ops = { 175 .hw_params = avs_es8336_hw_params, 176 }; 177 178 static int avs_es8336_be_fixup(struct snd_soc_pcm_runtime *runtime, 179 struct snd_pcm_hw_params *params) 180 { 181 struct snd_interval *rate, *channels; 182 struct snd_mask *fmt; 183 184 rate = hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE); 185 channels = hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS); 186 fmt = hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT); 187 188 /* The ADSP will convert the FE rate to 48k, stereo */ 189 rate->min = rate->max = 48000; 190 channels->min = channels->max = 2; 191 192 /* set SSPN to 24 bit */ 193 snd_mask_none(fmt); 194 snd_mask_set_format(fmt, SNDRV_PCM_FORMAT_S24_3LE); 195 196 return 0; 197 } 198 static int avs_create_dai_link(struct device *dev, const char *platform_name, int ssp_port, 199 int tdm_slot, struct snd_soc_dai_link **dai_link) 200 { 201 struct snd_soc_dai_link_component *platform; 202 struct snd_soc_dai_link *dl; 203 204 dl = devm_kzalloc(dev, sizeof(*dl), GFP_KERNEL); 205 platform = devm_kzalloc(dev, sizeof(*platform), GFP_KERNEL); 206 if (!dl || !platform) 207 return -ENOMEM; 208 209 platform->name = platform_name; 210 211 dl->name = devm_kasprintf(dev, GFP_KERNEL, 212 AVS_STRING_FMT("SSP", "-Codec", ssp_port, tdm_slot)); 213 dl->cpus = devm_kzalloc(dev, sizeof(*dl->cpus), GFP_KERNEL); 214 dl->codecs = devm_kzalloc(dev, sizeof(*dl->codecs), GFP_KERNEL); 215 if (!dl->name || !dl->cpus || !dl->codecs) 216 return -ENOMEM; 217 218 dl->cpus->dai_name = devm_kasprintf(dev, GFP_KERNEL, 219 AVS_STRING_FMT("SSP", " Pin", ssp_port, tdm_slot)); 220 dl->codecs->name = devm_kasprintf(dev, GFP_KERNEL, "i2c-ESSX8336:00"); 221 dl->codecs->dai_name = devm_kasprintf(dev, GFP_KERNEL, ES8336_CODEC_DAI); 222 if (!dl->cpus->dai_name || !dl->codecs->name || !dl->codecs->dai_name) 223 return -ENOMEM; 224 225 dl->num_cpus = 1; 226 dl->num_codecs = 1; 227 dl->platforms = platform; 228 dl->num_platforms = 1; 229 dl->id = 0; 230 dl->dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBC_CFC; 231 dl->init = avs_es8336_codec_init; 232 dl->exit = avs_es8336_codec_exit; 233 dl->be_hw_params_fixup = avs_es8336_be_fixup; 234 dl->ops = &avs_es8336_ops; 235 dl->nonatomic = 1; 236 dl->no_pcm = 1; 237 238 *dai_link = dl; 239 240 return 0; 241 } 242 243 static int avs_card_suspend_pre(struct snd_soc_card *card) 244 { 245 struct snd_soc_dai *codec_dai = snd_soc_card_get_codec_dai(card, ES8336_CODEC_DAI); 246 247 return snd_soc_component_set_jack(codec_dai->component, NULL, NULL); 248 } 249 250 static int avs_card_resume_post(struct snd_soc_card *card) 251 { 252 struct snd_soc_dai *codec_dai = snd_soc_card_get_codec_dai(card, ES8336_CODEC_DAI); 253 struct avs_card_drvdata *data = snd_soc_card_get_drvdata(card); 254 255 return snd_soc_component_set_jack(codec_dai->component, &data->jack, NULL); 256 } 257 258 static int avs_es8336_probe(struct platform_device *pdev) 259 { 260 struct snd_soc_dai_link *dai_link; 261 struct snd_soc_acpi_mach *mach; 262 struct avs_card_drvdata *data; 263 struct snd_soc_card *card; 264 struct device *dev = &pdev->dev; 265 const char *pname; 266 int ssp_port, tdm_slot, ret; 267 268 mach = dev_get_platdata(dev); 269 pname = mach->mach_params.platform; 270 271 ret = avs_mach_get_ssp_tdm(dev, mach, &ssp_port, &tdm_slot); 272 if (ret) 273 return ret; 274 275 ret = avs_create_dai_link(dev, pname, ssp_port, tdm_slot, &dai_link); 276 if (ret) { 277 dev_err(dev, "Failed to create dai link: %d", ret); 278 return ret; 279 } 280 281 data = devm_kzalloc(dev, sizeof(*data), GFP_KERNEL); 282 card = devm_kzalloc(dev, sizeof(*card), GFP_KERNEL); 283 if (!data || !card) 284 return -ENOMEM; 285 286 card->name = "avs_es8336"; 287 card->dev = dev; 288 card->owner = THIS_MODULE; 289 card->suspend_pre = avs_card_suspend_pre; 290 card->resume_post = avs_card_resume_post; 291 card->dai_link = dai_link; 292 card->num_links = 1; 293 card->controls = card_controls; 294 card->num_controls = ARRAY_SIZE(card_controls); 295 card->dapm_widgets = card_widgets; 296 card->num_dapm_widgets = ARRAY_SIZE(card_widgets); 297 card->dapm_routes = card_routes; 298 card->num_dapm_routes = ARRAY_SIZE(card_routes); 299 card->fully_routed = true; 300 snd_soc_card_set_drvdata(card, data); 301 302 ret = snd_soc_fixup_dai_links_platform_name(card, pname); 303 if (ret) 304 return ret; 305 306 return devm_snd_soc_register_card(dev, card); 307 } 308 309 static const struct platform_device_id avs_es8336_driver_ids[] = { 310 { 311 .name = "avs_es8336", 312 }, 313 {}, 314 }; 315 MODULE_DEVICE_TABLE(platform, avs_es8336_driver_ids); 316 317 static struct platform_driver avs_es8336_driver = { 318 .probe = avs_es8336_probe, 319 .driver = { 320 .name = "avs_es8336", 321 .pm = &snd_soc_pm_ops, 322 }, 323 .id_table = avs_es8336_driver_ids, 324 }; 325 326 module_platform_driver(avs_es8336_driver); 327 328 MODULE_DESCRIPTION("Intel es8336 machine driver"); 329 MODULE_LICENSE("GPL"); 330