1 // SPDX-License-Identifier: GPL-2.0-only 2 /* 3 * omap-abe-twl6040.c -- SoC audio for TI OMAP based boards with ABE and 4 * twl6040 codec 5 * 6 * Author: Misael Lopez Cruz <misael.lopez@ti.com> 7 */ 8 9 #include <linux/clk.h> 10 #include <linux/platform_device.h> 11 #include <linux/mfd/twl6040.h> 12 #include <linux/module.h> 13 #include <linux/of.h> 14 15 #include <sound/core.h> 16 #include <sound/pcm.h> 17 #include <sound/soc.h> 18 #include <sound/jack.h> 19 20 #include "omap-dmic.h" 21 #include "omap-mcpdm.h" 22 #include "../codecs/twl6040.h" 23 24 SND_SOC_DAILINK_DEFS(link0, 25 DAILINK_COMP_ARRAY(COMP_EMPTY()), 26 DAILINK_COMP_ARRAY(COMP_CODEC("twl6040-codec", 27 "twl6040-legacy")), 28 DAILINK_COMP_ARRAY(COMP_EMPTY())); 29 30 SND_SOC_DAILINK_DEFS(link1, 31 DAILINK_COMP_ARRAY(COMP_EMPTY()), 32 DAILINK_COMP_ARRAY(COMP_CODEC("dmic-codec", 33 "dmic-hifi")), 34 DAILINK_COMP_ARRAY(COMP_EMPTY())); 35 36 struct abe_twl6040 { 37 struct snd_soc_card card; 38 struct snd_soc_dai_link dai_links[2]; 39 int jack_detection; /* board can detect jack events */ 40 int mclk_freq; /* MCLK frequency speed for twl6040 */ 41 }; 42 43 static struct platform_device *dmic_codec_dev; 44 45 static int omap_abe_hw_params(struct snd_pcm_substream *substream, 46 struct snd_pcm_hw_params *params) 47 { 48 struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream); 49 struct snd_soc_dai *codec_dai = snd_soc_rtd_to_codec(rtd, 0); 50 struct snd_soc_card *card = rtd->card; 51 struct abe_twl6040 *priv = snd_soc_card_get_drvdata(card); 52 int clk_id, freq; 53 int ret; 54 55 clk_id = twl6040_get_clk_id(codec_dai->component); 56 if (clk_id == TWL6040_SYSCLK_SEL_HPPLL) 57 freq = priv->mclk_freq; 58 else if (clk_id == TWL6040_SYSCLK_SEL_LPPLL) 59 freq = 32768; 60 else 61 return -EINVAL; 62 63 /* set the codec mclk */ 64 ret = snd_soc_dai_set_sysclk(codec_dai, clk_id, freq, 65 SND_SOC_CLOCK_IN); 66 if (ret) { 67 printk(KERN_ERR "can't set codec system clock\n"); 68 return ret; 69 } 70 return ret; 71 } 72 73 static const struct snd_soc_ops omap_abe_ops = { 74 .hw_params = omap_abe_hw_params, 75 }; 76 77 static int omap_abe_dmic_hw_params(struct snd_pcm_substream *substream, 78 struct snd_pcm_hw_params *params) 79 { 80 struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream); 81 struct snd_soc_dai *cpu_dai = snd_soc_rtd_to_cpu(rtd, 0); 82 int ret = 0; 83 84 ret = snd_soc_dai_set_sysclk(cpu_dai, OMAP_DMIC_SYSCLK_PAD_CLKS, 85 19200000, SND_SOC_CLOCK_IN); 86 if (ret < 0) { 87 printk(KERN_ERR "can't set DMIC cpu system clock\n"); 88 return ret; 89 } 90 ret = snd_soc_dai_set_sysclk(cpu_dai, OMAP_DMIC_ABE_DMIC_CLK, 2400000, 91 SND_SOC_CLOCK_OUT); 92 if (ret < 0) { 93 printk(KERN_ERR "can't set DMIC output clock\n"); 94 return ret; 95 } 96 return 0; 97 } 98 99 static const struct snd_soc_ops omap_abe_dmic_ops = { 100 .hw_params = omap_abe_dmic_hw_params, 101 }; 102 103 /* Headset jack */ 104 static struct snd_soc_jack hs_jack; 105 106 /*Headset jack detection DAPM pins */ 107 static struct snd_soc_jack_pin hs_jack_pins[] = { 108 { 109 .pin = "Headset Mic", 110 .mask = SND_JACK_MICROPHONE, 111 }, 112 { 113 .pin = "Headset Stereophone", 114 .mask = SND_JACK_HEADPHONE, 115 }, 116 }; 117 118 /* SDP4430 machine DAPM */ 119 static const struct snd_soc_dapm_widget twl6040_dapm_widgets[] = { 120 /* Outputs */ 121 SND_SOC_DAPM_HP("Headset Stereophone", NULL), 122 SND_SOC_DAPM_SPK("Earphone Spk", NULL), 123 SND_SOC_DAPM_SPK("Ext Spk", NULL), 124 SND_SOC_DAPM_LINE("Line Out", NULL), 125 SND_SOC_DAPM_SPK("Vibrator", NULL), 126 127 /* Inputs */ 128 SND_SOC_DAPM_MIC("Headset Mic", NULL), 129 SND_SOC_DAPM_MIC("Main Handset Mic", NULL), 130 SND_SOC_DAPM_MIC("Sub Handset Mic", NULL), 131 SND_SOC_DAPM_LINE("Line In", NULL), 132 133 /* Digital microphones */ 134 SND_SOC_DAPM_MIC("Digital Mic", NULL), 135 }; 136 137 static const struct snd_soc_dapm_route audio_map[] = { 138 /* Routings for outputs */ 139 {"Headset Stereophone", NULL, "HSOL"}, 140 {"Headset Stereophone", NULL, "HSOR"}, 141 142 {"Earphone Spk", NULL, "EP"}, 143 144 {"Ext Spk", NULL, "HFL"}, 145 {"Ext Spk", NULL, "HFR"}, 146 147 {"Line Out", NULL, "AUXL"}, 148 {"Line Out", NULL, "AUXR"}, 149 150 {"Vibrator", NULL, "VIBRAL"}, 151 {"Vibrator", NULL, "VIBRAR"}, 152 153 /* Routings for inputs */ 154 {"HSMIC", NULL, "Headset Mic"}, 155 {"Headset Mic", NULL, "Headset Mic Bias"}, 156 157 {"MAINMIC", NULL, "Main Handset Mic"}, 158 {"Main Handset Mic", NULL, "Main Mic Bias"}, 159 160 {"SUBMIC", NULL, "Sub Handset Mic"}, 161 {"Sub Handset Mic", NULL, "Main Mic Bias"}, 162 163 {"AFML", NULL, "Line In"}, 164 {"AFMR", NULL, "Line In"}, 165 }; 166 167 static int omap_abe_twl6040_init(struct snd_soc_pcm_runtime *rtd) 168 { 169 struct snd_soc_component *component = snd_soc_rtd_to_codec(rtd, 0)->component; 170 struct snd_soc_card *card = rtd->card; 171 struct abe_twl6040 *priv = snd_soc_card_get_drvdata(card); 172 int hs_trim; 173 int ret; 174 175 /* 176 * Configure McPDM offset cancellation based on the HSOTRIM value from 177 * twl6040. 178 */ 179 hs_trim = twl6040_get_trim_value(component, TWL6040_TRIM_HSOTRIM); 180 omap_mcpdm_configure_dn_offsets(rtd, TWL6040_HSF_TRIM_LEFT(hs_trim), 181 TWL6040_HSF_TRIM_RIGHT(hs_trim)); 182 183 /* Headset jack detection only if it is supported */ 184 if (priv->jack_detection) { 185 ret = snd_soc_card_jack_new_pins(rtd->card, "Headset Jack", 186 SND_JACK_HEADSET, &hs_jack, 187 hs_jack_pins, 188 ARRAY_SIZE(hs_jack_pins)); 189 if (ret) 190 return ret; 191 192 twl6040_hs_jack_detect(component, &hs_jack, SND_JACK_HEADSET); 193 } 194 195 return 0; 196 } 197 198 static const struct snd_soc_dapm_route dmic_audio_map[] = { 199 {"DMic", NULL, "Digital Mic"}, 200 {"Digital Mic", NULL, "Digital Mic1 Bias"}, 201 }; 202 203 static int omap_abe_dmic_init(struct snd_soc_pcm_runtime *rtd) 204 { 205 struct snd_soc_dapm_context *dapm = snd_soc_card_to_dapm(rtd->card); 206 207 return snd_soc_dapm_add_routes(dapm, dmic_audio_map, 208 ARRAY_SIZE(dmic_audio_map)); 209 } 210 211 static int omap_abe_probe(struct platform_device *pdev) 212 { 213 struct device_node *node = pdev->dev.of_node; 214 struct snd_soc_card *card; 215 struct device_node *dai_node; 216 struct abe_twl6040 *priv; 217 int num_links = 0; 218 int ret = 0; 219 220 if (!node) { 221 dev_err(&pdev->dev, "of node is missing.\n"); 222 return -ENODEV; 223 } 224 225 priv = devm_kzalloc(&pdev->dev, sizeof(struct abe_twl6040), GFP_KERNEL); 226 if (priv == NULL) 227 return -ENOMEM; 228 229 card = &priv->card; 230 card->dev = &pdev->dev; 231 card->owner = THIS_MODULE; 232 card->dapm_widgets = twl6040_dapm_widgets; 233 card->num_dapm_widgets = ARRAY_SIZE(twl6040_dapm_widgets); 234 card->dapm_routes = audio_map; 235 card->num_dapm_routes = ARRAY_SIZE(audio_map); 236 237 ret = snd_soc_of_parse_card_name(card, "ti,model"); 238 if (ret) 239 return ret; 240 241 ret = snd_soc_of_parse_audio_routing(card, "ti,audio-routing"); 242 if (ret) 243 return ret; 244 245 dai_node = of_parse_phandle(node, "ti,mcpdm", 0); 246 if (!dai_node) { 247 dev_err(&pdev->dev, "McPDM node is not provided\n"); 248 return -EINVAL; 249 } 250 251 priv->dai_links[0].name = "DMIC"; 252 priv->dai_links[0].stream_name = "TWL6040"; 253 priv->dai_links[0].cpus = link0_cpus; 254 priv->dai_links[0].num_cpus = 1; 255 priv->dai_links[0].cpus->of_node = dai_node; 256 priv->dai_links[0].platforms = link0_platforms; 257 priv->dai_links[0].num_platforms = 1; 258 priv->dai_links[0].platforms->of_node = dai_node; 259 priv->dai_links[0].codecs = link0_codecs; 260 priv->dai_links[0].num_codecs = 1; 261 priv->dai_links[0].init = omap_abe_twl6040_init; 262 priv->dai_links[0].ops = &omap_abe_ops; 263 264 dai_node = of_parse_phandle(node, "ti,dmic", 0); 265 if (dai_node) { 266 num_links = 2; 267 priv->dai_links[1].name = "TWL6040"; 268 priv->dai_links[1].stream_name = "DMIC Capture"; 269 priv->dai_links[1].cpus = link1_cpus; 270 priv->dai_links[1].num_cpus = 1; 271 priv->dai_links[1].cpus->of_node = dai_node; 272 priv->dai_links[1].platforms = link1_platforms; 273 priv->dai_links[1].num_platforms = 1; 274 priv->dai_links[1].platforms->of_node = dai_node; 275 priv->dai_links[1].codecs = link1_codecs; 276 priv->dai_links[1].num_codecs = 1; 277 priv->dai_links[1].init = omap_abe_dmic_init; 278 priv->dai_links[1].ops = &omap_abe_dmic_ops; 279 } else { 280 num_links = 1; 281 } 282 283 priv->jack_detection = of_property_read_bool(node, "ti,jack-detection"); 284 of_property_read_u32(node, "ti,mclk-freq", &priv->mclk_freq); 285 if (!priv->mclk_freq) { 286 dev_err(&pdev->dev, "MCLK frequency not provided\n"); 287 return -EINVAL; 288 } 289 290 card->fully_routed = 1; 291 292 card->dai_link = priv->dai_links; 293 card->num_links = num_links; 294 295 snd_soc_card_set_drvdata(card, priv); 296 297 ret = devm_snd_soc_register_card(&pdev->dev, card); 298 if (ret) 299 dev_err_probe(&pdev->dev, ret, 300 "devm_snd_soc_register_card() failed\n"); 301 302 return ret; 303 } 304 305 static const struct of_device_id omap_abe_of_match[] = { 306 {.compatible = "ti,abe-twl6040", }, 307 { }, 308 }; 309 MODULE_DEVICE_TABLE(of, omap_abe_of_match); 310 311 static struct platform_driver omap_abe_driver = { 312 .driver = { 313 .name = "omap-abe-twl6040", 314 .pm = &snd_soc_pm_ops, 315 .of_match_table = omap_abe_of_match, 316 }, 317 .probe = omap_abe_probe, 318 }; 319 320 static int __init omap_abe_init(void) 321 { 322 int ret; 323 324 dmic_codec_dev = platform_device_register_simple("dmic-codec", -1, NULL, 325 0); 326 if (IS_ERR(dmic_codec_dev)) { 327 pr_err("%s: dmic-codec device registration failed\n", __func__); 328 return PTR_ERR(dmic_codec_dev); 329 } 330 331 ret = platform_driver_register(&omap_abe_driver); 332 if (ret) { 333 pr_err("%s: platform driver registration failed\n", __func__); 334 platform_device_unregister(dmic_codec_dev); 335 } 336 337 return ret; 338 } 339 module_init(omap_abe_init); 340 341 static void __exit omap_abe_exit(void) 342 { 343 platform_driver_unregister(&omap_abe_driver); 344 platform_device_unregister(dmic_codec_dev); 345 } 346 module_exit(omap_abe_exit); 347 348 MODULE_AUTHOR("Misael Lopez Cruz <misael.lopez@ti.com>"); 349 MODULE_DESCRIPTION("ALSA SoC for OMAP boards with ABE and twl6040 codec"); 350 MODULE_LICENSE("GPL"); 351 MODULE_ALIAS("platform:omap-abe-twl6040"); 352