1// SPDX-License-Identifier: GPL-2.0-only 2// 3// Copyright(c) 2021-2022 Intel Corporation. All rights reserved. 4// 5// Author: Cezary Rojewski <cezary.rojewski@intel.com> 6// 7 8#include <linux/module.h> 9#include <linux/platform_data/x86/soc.h> 10#include <linux/platform_device.h> 11#include <sound/jack.h> 12#include <sound/pcm.h> 13#include <sound/pcm_params.h> 14#include <sound/soc.h> 15#include <sound/soc-acpi.h> 16#include <sound/soc-dapm.h> 17#include <uapi/linux/input-event-codes.h> 18#include "../../../codecs/da7219.h" 19 20#define DA7219_DAI_NAME "da7219-hifi" 21 22static const struct snd_kcontrol_new card_controls[] = { 23 SOC_DAPM_PIN_SWITCH("Headphone Jack"), 24 SOC_DAPM_PIN_SWITCH("Headset Mic"), 25 SOC_DAPM_PIN_SWITCH("Line Out"), 26}; 27 28static int platform_clock_control(struct snd_soc_dapm_widget *w, 29 struct snd_kcontrol *k, int event) 30{ 31 struct snd_soc_dapm_context *dapm = w->dapm; 32 struct snd_soc_card *card = dapm->card; 33 struct snd_soc_dai *codec_dai; 34 int ret = 0; 35 36 codec_dai = snd_soc_card_get_codec_dai(card, DA7219_DAI_NAME); 37 if (!codec_dai) { 38 dev_err(card->dev, "Codec dai not found. Unable to set/unset codec pll\n"); 39 return -EIO; 40 } 41 42 if (SND_SOC_DAPM_EVENT_OFF(event)) { 43 ret = snd_soc_dai_set_pll(codec_dai, 0, DA7219_SYSCLK_MCLK, 0, 0); 44 if (ret) 45 dev_err(card->dev, "failed to stop PLL: %d\n", ret); 46 } else if (SND_SOC_DAPM_EVENT_ON(event)) { 47 ret = snd_soc_dai_set_pll(codec_dai, 0, DA7219_SYSCLK_PLL_SRM, 48 0, DA7219_PLL_FREQ_OUT_98304); 49 if (ret) 50 dev_err(card->dev, "failed to start PLL: %d\n", ret); 51 } 52 53 return ret; 54} 55 56static const struct snd_soc_dapm_widget card_widgets[] = { 57 SND_SOC_DAPM_HP("Headphone Jack", NULL), 58 SND_SOC_DAPM_MIC("Headset Mic", NULL), 59 SND_SOC_DAPM_LINE("Line Out", NULL), 60 SND_SOC_DAPM_SUPPLY("Platform Clock", SND_SOC_NOPM, 0, 0, platform_clock_control, 61 SND_SOC_DAPM_POST_PMD | SND_SOC_DAPM_PRE_PMU), 62}; 63 64static const struct snd_soc_dapm_route card_base_routes[] = { 65 /* HP jack connectors - unknown if we have jack detection */ 66 {"Headphone Jack", NULL, "HPL"}, 67 {"Headphone Jack", NULL, "HPR"}, 68 69 {"MIC", NULL, "Headset Mic"}, 70 71 { "Headphone Jack", NULL, "Platform Clock" }, 72 { "Headset Mic", NULL, "Platform Clock" }, 73 { "Line Out", NULL, "Platform Clock" }, 74}; 75 76static const struct snd_soc_jack_pin card_headset_pins[] = { 77 { 78 .pin = "Headphone Jack", 79 .mask = SND_JACK_HEADPHONE, 80 }, 81 { 82 .pin = "Headset Mic", 83 .mask = SND_JACK_MICROPHONE, 84 }, 85 { 86 .pin = "Line Out", 87 .mask = SND_JACK_LINEOUT, 88 }, 89}; 90 91static int avs_da7219_codec_init(struct snd_soc_pcm_runtime *runtime) 92{ 93 struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(runtime, 0); 94 struct snd_soc_component *component = codec_dai->component; 95 struct snd_soc_card *card = runtime->card; 96 struct snd_soc_jack_pin *pins; 97 struct snd_soc_jack *jack; 98 int num_pins; 99 int clk_freq; 100 int ret; 101 102 jack = snd_soc_card_get_drvdata(card); 103 if (soc_intel_is_apl()) 104 clk_freq = 19200000; 105 else /* kbl */ 106 clk_freq = 24576000; 107 108 ret = snd_soc_dai_set_sysclk(codec_dai, DA7219_CLKSRC_MCLK, clk_freq, SND_SOC_CLOCK_IN); 109 if (ret) { 110 dev_err(card->dev, "can't set codec sysclk configuration\n"); 111 return ret; 112 } 113 114 num_pins = ARRAY_SIZE(card_headset_pins); 115 pins = devm_kmemdup(card->dev, card_headset_pins, sizeof(*pins) * num_pins, GFP_KERNEL); 116 if (!pins) 117 return -ENOMEM; 118 119 /* 120 * Headset buttons map to the google Reference headset. 121 * These can be configured by userspace. 122 */ 123 ret = snd_soc_card_jack_new_pins(card, "Headset Jack", 124 SND_JACK_HEADSET | SND_JACK_BTN_0 | 125 SND_JACK_BTN_1 | SND_JACK_BTN_2 | 126 SND_JACK_BTN_3 | SND_JACK_LINEOUT, 127 jack, pins, num_pins); 128 if (ret) { 129 dev_err(card->dev, "Headset Jack creation failed: %d\n", ret); 130 return ret; 131 } 132 133 snd_jack_set_key(jack->jack, SND_JACK_BTN_0, KEY_PLAYPAUSE); 134 snd_jack_set_key(jack->jack, SND_JACK_BTN_1, KEY_VOLUMEUP); 135 snd_jack_set_key(jack->jack, SND_JACK_BTN_2, KEY_VOLUMEDOWN); 136 snd_jack_set_key(jack->jack, SND_JACK_BTN_3, KEY_VOICECOMMAND); 137 138 return snd_soc_component_set_jack(component, jack, NULL); 139} 140 141static void avs_da7219_codec_exit(struct snd_soc_pcm_runtime *rtd) 142{ 143 snd_soc_component_set_jack(asoc_rtd_to_codec(rtd, 0)->component, NULL, NULL); 144} 145 146static int 147avs_da7219_be_fixup(struct snd_soc_pcm_runtime *runrime, struct snd_pcm_hw_params *params) 148{ 149 struct snd_interval *rate, *channels; 150 struct snd_mask *fmt; 151 152 rate = hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE); 153 channels = hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS); 154 fmt = hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT); 155 156 /* The ADSP will convert the FE rate to 48k, stereo */ 157 rate->min = rate->max = 48000; 158 channels->min = channels->max = 2; 159 160 /* set SSP0 to 24 bit */ 161 snd_mask_none(fmt); 162 snd_mask_set_format(fmt, SNDRV_PCM_FORMAT_S24_LE); 163 return 0; 164} 165 166static int avs_create_dai_link(struct device *dev, const char *platform_name, int ssp_port, 167 struct snd_soc_dai_link **dai_link) 168{ 169 struct snd_soc_dai_link_component *platform; 170 struct snd_soc_dai_link *dl; 171 172 dl = devm_kzalloc(dev, sizeof(*dl), GFP_KERNEL); 173 platform = devm_kzalloc(dev, sizeof(*platform), GFP_KERNEL); 174 if (!dl || !platform) 175 return -ENOMEM; 176 177 platform->name = platform_name; 178 179 dl->name = devm_kasprintf(dev, GFP_KERNEL, "SSP%d-Codec", ssp_port); 180 dl->cpus = devm_kzalloc(dev, sizeof(*dl->cpus), GFP_KERNEL); 181 dl->codecs = devm_kzalloc(dev, sizeof(*dl->codecs), GFP_KERNEL); 182 if (!dl->name || !dl->cpus || !dl->codecs) 183 return -ENOMEM; 184 185 dl->cpus->dai_name = devm_kasprintf(dev, GFP_KERNEL, "SSP%d Pin", ssp_port); 186 dl->codecs->name = devm_kasprintf(dev, GFP_KERNEL, "i2c-DLGS7219:00"); 187 dl->codecs->dai_name = devm_kasprintf(dev, GFP_KERNEL, DA7219_DAI_NAME); 188 if (!dl->cpus->dai_name || !dl->codecs->name || !dl->codecs->dai_name) 189 return -ENOMEM; 190 191 dl->num_cpus = 1; 192 dl->num_codecs = 1; 193 dl->platforms = platform; 194 dl->num_platforms = 1; 195 dl->id = 0; 196 dl->dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBS_CFS; 197 dl->be_hw_params_fixup = avs_da7219_be_fixup; 198 dl->init = avs_da7219_codec_init; 199 dl->exit = avs_da7219_codec_exit; 200 dl->nonatomic = 1; 201 dl->no_pcm = 1; 202 dl->dpcm_capture = 1; 203 dl->dpcm_playback = 1; 204 205 *dai_link = dl; 206 207 return 0; 208} 209 210static int avs_card_suspend_pre(struct snd_soc_card *card) 211{ 212 struct snd_soc_dai *codec_dai = snd_soc_card_get_codec_dai(card, DA7219_DAI_NAME); 213 214 return snd_soc_component_set_jack(codec_dai->component, NULL, NULL); 215} 216 217static int avs_card_resume_post(struct snd_soc_card *card) 218{ 219 struct snd_soc_dai *codec_dai = snd_soc_card_get_codec_dai(card, DA7219_DAI_NAME); 220 struct snd_soc_jack *jack = snd_soc_card_get_drvdata(card); 221 222 return snd_soc_component_set_jack(codec_dai->component, jack, NULL); 223} 224 225static int avs_da7219_probe(struct platform_device *pdev) 226{ 227 struct snd_soc_dai_link *dai_link; 228 struct snd_soc_acpi_mach *mach; 229 struct snd_soc_card *card; 230 struct snd_soc_jack *jack; 231 struct device *dev = &pdev->dev; 232 const char *pname; 233 int ssp_port, ret; 234 235 mach = dev_get_platdata(dev); 236 pname = mach->mach_params.platform; 237 ssp_port = __ffs(mach->mach_params.i2s_link_mask); 238 239 ret = avs_create_dai_link(dev, pname, ssp_port, &dai_link); 240 if (ret) { 241 dev_err(dev, "Failed to create dai link: %d", ret); 242 return ret; 243 } 244 245 jack = devm_kzalloc(dev, sizeof(*jack), GFP_KERNEL); 246 card = devm_kzalloc(dev, sizeof(*card), GFP_KERNEL); 247 if (!jack || !card) 248 return -ENOMEM; 249 250 card->name = "avs_da7219"; 251 card->dev = dev; 252 card->owner = THIS_MODULE; 253 card->suspend_pre = avs_card_suspend_pre; 254 card->resume_post = avs_card_resume_post; 255 card->dai_link = dai_link; 256 card->num_links = 1; 257 card->controls = card_controls; 258 card->num_controls = ARRAY_SIZE(card_controls); 259 card->dapm_widgets = card_widgets; 260 card->num_dapm_widgets = ARRAY_SIZE(card_widgets); 261 card->dapm_routes = card_base_routes; 262 card->num_dapm_routes = ARRAY_SIZE(card_base_routes); 263 card->fully_routed = true; 264 snd_soc_card_set_drvdata(card, jack); 265 266 ret = snd_soc_fixup_dai_links_platform_name(card, pname); 267 if (ret) 268 return ret; 269 270 return devm_snd_soc_register_card(dev, card); 271} 272 273static struct platform_driver avs_da7219_driver = { 274 .probe = avs_da7219_probe, 275 .driver = { 276 .name = "avs_da7219", 277 .pm = &snd_soc_pm_ops, 278 }, 279}; 280 281module_platform_driver(avs_da7219_driver); 282 283MODULE_AUTHOR("Cezary Rojewski <cezary.rojewski@intel.com>"); 284MODULE_LICENSE("GPL"); 285MODULE_ALIAS("platform:avs_da7219"); 286