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_device.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 <sound/soc-dapm.h> 16 #include <uapi/linux/input-event-codes.h> 17 #include "../../../codecs/da7219.h" 18 #include "../../../codecs/da7219-aad.h" 19 20 #define DA7219_DAI_NAME "da7219-hifi" 21 22 static const struct snd_kcontrol_new card_controls[] = { 23 SOC_DAPM_PIN_SWITCH("Headphone Jack"), 24 SOC_DAPM_PIN_SWITCH("Headset Mic"), 25 }; 26 27 static int platform_clock_control(struct snd_soc_dapm_widget *w, 28 struct snd_kcontrol *k, 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 = 0; 34 35 codec_dai = snd_soc_card_get_codec_dai(card, DA7219_DAI_NAME); 36 if (!codec_dai) { 37 dev_err(card->dev, "Codec dai not found. Unable to set/unset codec pll\n"); 38 return -EIO; 39 } 40 41 if (SND_SOC_DAPM_EVENT_OFF(event)) { 42 ret = snd_soc_dai_set_pll(codec_dai, 0, DA7219_SYSCLK_MCLK, 0, 0); 43 if (ret) 44 dev_err(card->dev, "failed to stop PLL: %d\n", ret); 45 } else if (SND_SOC_DAPM_EVENT_ON(event)) { 46 ret = snd_soc_dai_set_pll(codec_dai, 0, DA7219_SYSCLK_PLL_SRM, 47 0, DA7219_PLL_FREQ_OUT_98304); 48 if (ret) 49 dev_err(card->dev, "failed to start PLL: %d\n", ret); 50 } 51 52 return ret; 53 } 54 55 static const struct snd_soc_dapm_widget card_widgets[] = { 56 SND_SOC_DAPM_HP("Headphone Jack", NULL), 57 SND_SOC_DAPM_MIC("Headset Mic", NULL), 58 SND_SOC_DAPM_SUPPLY("Platform Clock", SND_SOC_NOPM, 0, 0, platform_clock_control, 59 SND_SOC_DAPM_POST_PMD | SND_SOC_DAPM_PRE_PMU), 60 }; 61 62 static const struct snd_soc_dapm_route card_base_routes[] = { 63 /* HP jack connectors - unknown if we have jack detection */ 64 {"Headphone Jack", NULL, "HPL"}, 65 {"Headphone Jack", NULL, "HPR"}, 66 67 {"MIC", NULL, "Headset Mic"}, 68 69 { "Headphone Jack", NULL, "Platform Clock" }, 70 { "Headset Mic", NULL, "Platform Clock" }, 71 }; 72 73 static int avs_da7219_codec_init(struct snd_soc_pcm_runtime *runtime) 74 { 75 struct snd_soc_component *component = asoc_rtd_to_codec(runtime, 0)->component; 76 struct snd_soc_card *card = runtime->card; 77 struct snd_soc_jack *jack; 78 struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(runtime, 0); 79 int clk_freq; 80 int ret; 81 82 jack = snd_soc_card_get_drvdata(card); 83 clk_freq = 19200000; 84 85 ret = snd_soc_dai_set_sysclk(codec_dai, DA7219_CLKSRC_MCLK, clk_freq, SND_SOC_CLOCK_IN); 86 if (ret) { 87 dev_err(card->dev, "can't set codec sysclk configuration\n"); 88 return ret; 89 } 90 91 /* 92 * Headset buttons map to the google Reference headset. 93 * These can be configured by userspace. 94 */ 95 ret = snd_soc_card_jack_new(card, "Headset Jack", 96 SND_JACK_HEADSET | SND_JACK_BTN_0 | 97 SND_JACK_BTN_1 | SND_JACK_BTN_2 | 98 SND_JACK_BTN_3 | SND_JACK_LINEOUT, jack); 99 if (ret) { 100 dev_err(card->dev, "Headset Jack creation failed: %d\n", ret); 101 return ret; 102 } 103 104 snd_jack_set_key(jack->jack, SND_JACK_BTN_0, KEY_PLAYPAUSE); 105 snd_jack_set_key(jack->jack, SND_JACK_BTN_1, KEY_VOLUMEUP); 106 snd_jack_set_key(jack->jack, SND_JACK_BTN_2, KEY_VOLUMEDOWN); 107 snd_jack_set_key(jack->jack, SND_JACK_BTN_3, KEY_VOICECOMMAND); 108 109 da7219_aad_jack_det(component, jack); 110 111 return 0; 112 } 113 114 static int avs_create_dai_link(struct device *dev, const char *platform_name, int ssp_port, 115 struct snd_soc_dai_link **dai_link) 116 { 117 struct snd_soc_dai_link_component *platform; 118 struct snd_soc_dai_link *dl; 119 120 dl = devm_kzalloc(dev, sizeof(*dl), GFP_KERNEL); 121 platform = devm_kzalloc(dev, sizeof(*platform), GFP_KERNEL); 122 if (!dl || !platform) 123 return -ENOMEM; 124 125 platform->name = platform_name; 126 127 dl->name = devm_kasprintf(dev, GFP_KERNEL, "SSP%d-Codec", ssp_port); 128 dl->cpus = devm_kzalloc(dev, sizeof(*dl->cpus), GFP_KERNEL); 129 dl->codecs = devm_kzalloc(dev, sizeof(*dl->codecs), GFP_KERNEL); 130 if (!dl->name || !dl->cpus || !dl->codecs) 131 return -ENOMEM; 132 133 dl->cpus->dai_name = devm_kasprintf(dev, GFP_KERNEL, "SSP%d Pin", ssp_port); 134 dl->codecs->name = devm_kasprintf(dev, GFP_KERNEL, "i2c-DLGS7219:00"); 135 dl->codecs->dai_name = devm_kasprintf(dev, GFP_KERNEL, DA7219_DAI_NAME); 136 if (!dl->cpus->dai_name || !dl->codecs->name || !dl->codecs->dai_name) 137 return -ENOMEM; 138 139 dl->num_cpus = 1; 140 dl->num_codecs = 1; 141 dl->platforms = platform; 142 dl->num_platforms = 1; 143 dl->id = 0; 144 dl->dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBS_CFS; 145 dl->init = avs_da7219_codec_init; 146 dl->nonatomic = 1; 147 dl->no_pcm = 1; 148 dl->dpcm_capture = 1; 149 dl->dpcm_playback = 1; 150 151 *dai_link = dl; 152 153 return 0; 154 } 155 156 static int avs_create_dapm_routes(struct device *dev, int ssp_port, 157 struct snd_soc_dapm_route **routes, int *num_routes) 158 { 159 struct snd_soc_dapm_route *dr; 160 const int num_base = ARRAY_SIZE(card_base_routes); 161 const int num_dr = num_base + 2; 162 int idx; 163 164 dr = devm_kcalloc(dev, num_dr, sizeof(*dr), GFP_KERNEL); 165 if (!dr) 166 return -ENOMEM; 167 168 memcpy(dr, card_base_routes, num_base * sizeof(*dr)); 169 170 idx = num_base; 171 dr[idx].sink = devm_kasprintf(dev, GFP_KERNEL, "Playback"); 172 dr[idx].source = devm_kasprintf(dev, GFP_KERNEL, "ssp%d Tx", ssp_port); 173 if (!dr[idx].sink || !dr[idx].source) 174 return -ENOMEM; 175 176 idx++; 177 dr[idx].sink = devm_kasprintf(dev, GFP_KERNEL, "ssp%d Rx", ssp_port); 178 dr[idx].source = devm_kasprintf(dev, GFP_KERNEL, "Capture"); 179 if (!dr[idx].sink || !dr[idx].source) 180 return -ENOMEM; 181 182 *routes = dr; 183 *num_routes = num_dr; 184 185 return 0; 186 } 187 188 static int avs_card_set_jack(struct snd_soc_card *card, struct snd_soc_jack *jack) 189 { 190 struct snd_soc_component *component; 191 192 for_each_card_components(card, component) 193 snd_soc_component_set_jack(component, jack, NULL); 194 return 0; 195 } 196 197 static int avs_card_remove(struct snd_soc_card *card) 198 { 199 return avs_card_set_jack(card, NULL); 200 } 201 202 static int avs_card_suspend_pre(struct snd_soc_card *card) 203 { 204 return avs_card_set_jack(card, NULL); 205 } 206 207 static int avs_card_resume_post(struct snd_soc_card *card) 208 { 209 struct snd_soc_jack *jack = snd_soc_card_get_drvdata(card); 210 211 return avs_card_set_jack(card, jack); 212 } 213 214 static int avs_da7219_probe(struct platform_device *pdev) 215 { 216 struct snd_soc_dapm_route *routes; 217 struct snd_soc_dai_link *dai_link; 218 struct snd_soc_acpi_mach *mach; 219 struct snd_soc_card *card; 220 struct snd_soc_jack *jack; 221 struct device *dev = &pdev->dev; 222 const char *pname; 223 int num_routes, ssp_port, ret; 224 225 mach = dev_get_platdata(dev); 226 pname = mach->mach_params.platform; 227 ssp_port = __ffs(mach->mach_params.i2s_link_mask); 228 229 ret = avs_create_dai_link(dev, pname, ssp_port, &dai_link); 230 if (ret) { 231 dev_err(dev, "Failed to create dai link: %d", ret); 232 return ret; 233 } 234 235 ret = avs_create_dapm_routes(dev, ssp_port, &routes, &num_routes); 236 if (ret) { 237 dev_err(dev, "Failed to create dapm routes: %d", ret); 238 return ret; 239 } 240 241 jack = devm_kzalloc(dev, sizeof(*jack), GFP_KERNEL); 242 card = devm_kzalloc(dev, sizeof(*card), GFP_KERNEL); 243 if (!jack || !card) 244 return -ENOMEM; 245 246 card->name = "avs_da7219"; 247 card->dev = dev; 248 card->owner = THIS_MODULE; 249 card->remove = avs_card_remove; 250 card->suspend_pre = avs_card_suspend_pre; 251 card->resume_post = avs_card_resume_post; 252 card->dai_link = dai_link; 253 card->num_links = 1; 254 card->controls = card_controls; 255 card->num_controls = ARRAY_SIZE(card_controls); 256 card->dapm_widgets = card_widgets; 257 card->num_dapm_widgets = ARRAY_SIZE(card_widgets); 258 card->dapm_routes = routes; 259 card->num_dapm_routes = num_routes; 260 card->fully_routed = true; 261 snd_soc_card_set_drvdata(card, jack); 262 263 ret = snd_soc_fixup_dai_links_platform_name(card, pname); 264 if (ret) 265 return ret; 266 267 return devm_snd_soc_register_card(dev, card); 268 } 269 270 static struct platform_driver avs_da7219_driver = { 271 .probe = avs_da7219_probe, 272 .driver = { 273 .name = "avs_da7219", 274 .pm = &snd_soc_pm_ops, 275 }, 276 }; 277 278 module_platform_driver(avs_da7219_driver); 279 280 MODULE_AUTHOR("Cezary Rojewski <cezary.rojewski@intel.com>"); 281 MODULE_LICENSE("GPL"); 282 MODULE_ALIAS("platform:avs_da7219"); 283