Peter Ujfalusi | fff8491 | 2012-08-14 12:07:56 +0300 | [diff] [blame] | 1 | /* |
| 2 | * omap-twl4030.c -- SoC audio for TI SoC based boards with twl4030 codec |
| 3 | * |
| 4 | * Copyright (C) 2012 Texas Instruments Incorporated - http://www.ti.com |
| 5 | * All rights reserved. |
| 6 | * |
| 7 | * Author: Peter Ujfalusi <peter.ujfalusi@ti.com> |
| 8 | * |
| 9 | * This driver replaces the following machine drivers: |
| 10 | * omap3beagle (Author: Steve Sakoman <steve@sakoman.com>) |
| 11 | * omap3evm (Author: Anuj Aggarwal <anuj.aggarwal@ti.com>) |
| 12 | * overo (Author: Steve Sakoman <steve@sakoman.com>) |
| 13 | * igep0020 (Author: Enric Balletbo i Serra <eballetbo@iseebcn.com>) |
Peter Ujfalusi | bd0b286 | 2012-12-31 11:51:48 +0100 | [diff] [blame] | 14 | * zoom2 (Author: Misael Lopez Cruz <misael.lopez@ti.com>) |
| 15 | * sdp3430 (Author: Misael Lopez Cruz <misael.lopez@ti.com>) |
Peter Ujfalusi | fff8491 | 2012-08-14 12:07:56 +0300 | [diff] [blame] | 16 | * |
| 17 | * This program is free software; you can redistribute it and/or |
| 18 | * modify it under the terms of the GNU General Public License |
| 19 | * version 2 as published by the Free Software Foundation. |
| 20 | * |
| 21 | * This program is distributed in the hope that it will be useful, but |
| 22 | * WITHOUT ANY WARRANTY; without even the implied warranty of |
| 23 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 24 | * General Public License for more details. |
| 25 | * |
| 26 | * You should have received a copy of the GNU General Public License |
| 27 | * along with this program; if not, write to the Free Software |
| 28 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA |
| 29 | * 02110-1301 USA |
| 30 | * |
| 31 | */ |
| 32 | |
| 33 | #include <linux/platform_device.h> |
| 34 | #include <linux/platform_data/omap-twl4030.h> |
| 35 | #include <linux/module.h> |
| 36 | #include <linux/of.h> |
Peter Ujfalusi | bd0b286 | 2012-12-31 11:51:48 +0100 | [diff] [blame] | 37 | #include <linux/gpio.h> |
| 38 | #include <linux/of_gpio.h> |
Peter Ujfalusi | fff8491 | 2012-08-14 12:07:56 +0300 | [diff] [blame] | 39 | |
| 40 | #include <sound/core.h> |
| 41 | #include <sound/pcm.h> |
| 42 | #include <sound/soc.h> |
Peter Ujfalusi | bd0b286 | 2012-12-31 11:51:48 +0100 | [diff] [blame] | 43 | #include <sound/jack.h> |
Peter Ujfalusi | fff8491 | 2012-08-14 12:07:56 +0300 | [diff] [blame] | 44 | |
| 45 | #include "omap-mcbsp.h" |
| 46 | #include "omap-pcm.h" |
| 47 | |
Peter Ujfalusi | bd0b286 | 2012-12-31 11:51:48 +0100 | [diff] [blame] | 48 | struct omap_twl4030 { |
| 49 | int jack_detect; /* board can detect jack events */ |
| 50 | struct snd_soc_jack hs_jack; |
| 51 | }; |
| 52 | |
Peter Ujfalusi | fff8491 | 2012-08-14 12:07:56 +0300 | [diff] [blame] | 53 | static int omap_twl4030_hw_params(struct snd_pcm_substream *substream, |
| 54 | struct snd_pcm_hw_params *params) |
| 55 | { |
| 56 | struct snd_soc_pcm_runtime *rtd = substream->private_data; |
| 57 | struct snd_soc_dai *codec_dai = rtd->codec_dai; |
| 58 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; |
| 59 | struct snd_soc_codec *codec = rtd->codec; |
| 60 | struct snd_soc_card *card = codec->card; |
| 61 | unsigned int fmt; |
| 62 | int ret; |
| 63 | |
| 64 | switch (params_channels(params)) { |
| 65 | case 2: /* Stereo I2S mode */ |
| 66 | fmt = SND_SOC_DAIFMT_I2S | |
| 67 | SND_SOC_DAIFMT_NB_NF | |
| 68 | SND_SOC_DAIFMT_CBM_CFM; |
| 69 | break; |
| 70 | case 4: /* Four channel TDM mode */ |
| 71 | fmt = SND_SOC_DAIFMT_DSP_A | |
| 72 | SND_SOC_DAIFMT_IB_NF | |
| 73 | SND_SOC_DAIFMT_CBM_CFM; |
| 74 | break; |
| 75 | default: |
| 76 | return -EINVAL; |
| 77 | } |
| 78 | |
| 79 | /* Set codec DAI configuration */ |
| 80 | ret = snd_soc_dai_set_fmt(codec_dai, fmt); |
| 81 | if (ret < 0) { |
| 82 | dev_err(card->dev, "can't set codec DAI configuration\n"); |
| 83 | return ret; |
| 84 | } |
| 85 | |
| 86 | /* Set cpu DAI configuration */ |
| 87 | ret = snd_soc_dai_set_fmt(cpu_dai, fmt); |
| 88 | if (ret < 0) { |
| 89 | dev_err(card->dev, "can't set cpu DAI configuration\n"); |
| 90 | return ret; |
| 91 | } |
| 92 | |
| 93 | return 0; |
| 94 | } |
| 95 | |
| 96 | static struct snd_soc_ops omap_twl4030_ops = { |
| 97 | .hw_params = omap_twl4030_hw_params, |
| 98 | }; |
| 99 | |
Peter Ujfalusi | bd0b286 | 2012-12-31 11:51:48 +0100 | [diff] [blame] | 100 | static const struct snd_soc_dapm_widget dapm_widgets[] = { |
| 101 | SND_SOC_DAPM_SPK("Earpiece Spk", NULL), |
| 102 | SND_SOC_DAPM_SPK("Handsfree Spk", NULL), |
| 103 | SND_SOC_DAPM_HP("Headset Stereophone", NULL), |
| 104 | SND_SOC_DAPM_SPK("Ext Spk", NULL), |
| 105 | SND_SOC_DAPM_SPK("Carkit Spk", NULL), |
| 106 | |
| 107 | SND_SOC_DAPM_MIC("Main Mic", NULL), |
| 108 | SND_SOC_DAPM_MIC("Sub Mic", NULL), |
| 109 | SND_SOC_DAPM_MIC("Headset Mic", NULL), |
| 110 | SND_SOC_DAPM_MIC("Carkit Mic", NULL), |
| 111 | SND_SOC_DAPM_MIC("Digital0 Mic", NULL), |
| 112 | SND_SOC_DAPM_MIC("Digital1 Mic", NULL), |
| 113 | SND_SOC_DAPM_LINE("Line In", NULL), |
| 114 | }; |
| 115 | |
| 116 | static const struct snd_soc_dapm_route audio_map[] = { |
| 117 | /* Headset Stereophone: HSOL, HSOR */ |
| 118 | {"Headset Stereophone", NULL, "HSOL"}, |
| 119 | {"Headset Stereophone", NULL, "HSOR"}, |
| 120 | /* External Speakers: HFL, HFR */ |
| 121 | {"Handsfree Spk", NULL, "HFL"}, |
| 122 | {"Handsfree Spk", NULL, "HFR"}, |
| 123 | /* External Speakers: PredrivL, PredrivR */ |
| 124 | {"Ext Spk", NULL, "PREDRIVEL"}, |
| 125 | {"Ext Spk", NULL, "PREDRIVER"}, |
| 126 | /* Carkit speakers: CARKITL, CARKITR */ |
| 127 | {"Carkit Spk", NULL, "CARKITL"}, |
| 128 | {"Carkit Spk", NULL, "CARKITR"}, |
| 129 | /* Earpiece */ |
| 130 | {"Earpiece Spk", NULL, "EARPIECE"}, |
| 131 | |
| 132 | /* External Mics: MAINMIC, SUBMIC with bias */ |
| 133 | {"MAINMIC", NULL, "Main Mic"}, |
| 134 | {"Main Mic", NULL, "Mic Bias 1"}, |
| 135 | {"SUBMIC", NULL, "Sub Mic"}, |
| 136 | {"Sub Mic", NULL, "Mic Bias 2"}, |
| 137 | /* Headset Mic: HSMIC with bias */ |
| 138 | {"HSMIC", NULL, "Headset Mic"}, |
| 139 | {"Headset Mic", NULL, "Headset Mic Bias"}, |
| 140 | /* Digital Mics: DIGIMIC0, DIGIMIC1 with bias */ |
| 141 | {"DIGIMIC0", NULL, "Digital0 Mic"}, |
| 142 | {"Digital0 Mic", NULL, "Mic Bias 1"}, |
| 143 | {"DIGIMIC1", NULL, "Digital1 Mic"}, |
| 144 | {"Digital1 Mic", NULL, "Mic Bias 2"}, |
| 145 | /* Carkit In: CARKITMIC */ |
| 146 | {"CARKITMIC", NULL, "Carkit Mic"}, |
| 147 | /* Aux In: AUXL, AUXR */ |
| 148 | {"AUXL", NULL, "Line In"}, |
| 149 | {"AUXR", NULL, "Line In"}, |
| 150 | }; |
| 151 | |
| 152 | /* Headset jack detection DAPM pins */ |
| 153 | static struct snd_soc_jack_pin hs_jack_pins[] = { |
| 154 | { |
| 155 | .pin = "Headset Mic", |
| 156 | .mask = SND_JACK_MICROPHONE, |
| 157 | }, |
| 158 | { |
| 159 | .pin = "Headset Stereophone", |
| 160 | .mask = SND_JACK_HEADPHONE, |
| 161 | }, |
| 162 | }; |
| 163 | |
| 164 | /* Headset jack detection gpios */ |
| 165 | static struct snd_soc_jack_gpio hs_jack_gpios[] = { |
| 166 | { |
| 167 | .name = "hsdet-gpio", |
| 168 | .report = SND_JACK_HEADSET, |
| 169 | .debounce_time = 200, |
| 170 | }, |
| 171 | }; |
| 172 | |
| 173 | static inline void twl4030_disconnect_pin(struct snd_soc_dapm_context *dapm, |
| 174 | int connected, char *pin) |
| 175 | { |
| 176 | if (!connected) |
| 177 | snd_soc_dapm_disable_pin(dapm, pin); |
| 178 | } |
| 179 | |
| 180 | static int omap_twl4030_init(struct snd_soc_pcm_runtime *rtd) |
| 181 | { |
| 182 | struct snd_soc_codec *codec = rtd->codec; |
| 183 | struct snd_soc_card *card = codec->card; |
| 184 | struct snd_soc_dapm_context *dapm = &codec->dapm; |
| 185 | struct omap_tw4030_pdata *pdata = dev_get_platdata(card->dev); |
| 186 | struct omap_twl4030 *priv = snd_soc_card_get_drvdata(card); |
| 187 | int ret = 0; |
| 188 | |
| 189 | /* Headset jack detection only if it is supported */ |
| 190 | if (priv->jack_detect > 0) { |
| 191 | hs_jack_gpios[0].gpio = priv->jack_detect; |
| 192 | |
| 193 | ret = snd_soc_jack_new(codec, "Headset Jack", SND_JACK_HEADSET, |
| 194 | &priv->hs_jack); |
| 195 | if (ret) |
| 196 | return ret; |
| 197 | |
| 198 | ret = snd_soc_jack_add_pins(&priv->hs_jack, |
| 199 | ARRAY_SIZE(hs_jack_pins), |
| 200 | hs_jack_pins); |
| 201 | if (ret) |
| 202 | return ret; |
| 203 | |
| 204 | ret = snd_soc_jack_add_gpios(&priv->hs_jack, |
| 205 | ARRAY_SIZE(hs_jack_gpios), |
| 206 | hs_jack_gpios); |
| 207 | if (ret) |
| 208 | return ret; |
| 209 | } |
| 210 | |
| 211 | /* |
| 212 | * NULL pdata means we booted with DT. In this case the routing is |
| 213 | * provided and the card is fully routed, no need to mark pins. |
| 214 | */ |
| 215 | if (!pdata || !pdata->custom_routing) |
| 216 | return ret; |
| 217 | |
| 218 | /* Disable not connected paths if not used */ |
| 219 | twl4030_disconnect_pin(dapm, pdata->has_ear, "Earpiece Spk"); |
| 220 | twl4030_disconnect_pin(dapm, pdata->has_hf, "Handsfree Spk"); |
| 221 | twl4030_disconnect_pin(dapm, pdata->has_hs, "Headset Stereophone"); |
| 222 | twl4030_disconnect_pin(dapm, pdata->has_predriv, "Ext Spk"); |
| 223 | twl4030_disconnect_pin(dapm, pdata->has_carkit, "Carkit Spk"); |
| 224 | |
| 225 | twl4030_disconnect_pin(dapm, pdata->has_mainmic, "Main Mic"); |
| 226 | twl4030_disconnect_pin(dapm, pdata->has_submic, "Sub Mic"); |
| 227 | twl4030_disconnect_pin(dapm, pdata->has_hsmic, "Headset Mic"); |
| 228 | twl4030_disconnect_pin(dapm, pdata->has_carkitmic, "Carkit Mic"); |
| 229 | twl4030_disconnect_pin(dapm, pdata->has_digimic0, "Digital0 Mic"); |
| 230 | twl4030_disconnect_pin(dapm, pdata->has_digimic1, "Digital1 Mic"); |
| 231 | twl4030_disconnect_pin(dapm, pdata->has_linein, "Line In"); |
| 232 | |
| 233 | return ret; |
| 234 | } |
| 235 | |
Peter Ujfalusi | fff8491 | 2012-08-14 12:07:56 +0300 | [diff] [blame] | 236 | /* Digital audio interface glue - connects codec <--> CPU */ |
| 237 | static struct snd_soc_dai_link omap_twl4030_dai_links[] = { |
| 238 | { |
Peter Ujfalusi | bd0b286 | 2012-12-31 11:51:48 +0100 | [diff] [blame] | 239 | .name = "TWL4030 HiFi", |
| 240 | .stream_name = "TWL4030 HiFi", |
Peter Ujfalusi | fff8491 | 2012-08-14 12:07:56 +0300 | [diff] [blame] | 241 | .cpu_dai_name = "omap-mcbsp.2", |
| 242 | .codec_dai_name = "twl4030-hifi", |
| 243 | .platform_name = "omap-pcm-audio", |
| 244 | .codec_name = "twl4030-codec", |
Peter Ujfalusi | bd0b286 | 2012-12-31 11:51:48 +0100 | [diff] [blame] | 245 | .init = omap_twl4030_init, |
Peter Ujfalusi | fff8491 | 2012-08-14 12:07:56 +0300 | [diff] [blame] | 246 | .ops = &omap_twl4030_ops, |
| 247 | }, |
Peter Ujfalusi | bd0b286 | 2012-12-31 11:51:48 +0100 | [diff] [blame] | 248 | { |
| 249 | .name = "TWL4030 Voice", |
| 250 | .stream_name = "TWL4030 Voice", |
| 251 | .cpu_dai_name = "omap-mcbsp.3", |
| 252 | .codec_dai_name = "twl4030-voice", |
| 253 | .platform_name = "omap-pcm-audio", |
| 254 | .codec_name = "twl4030-codec", |
| 255 | .dai_fmt = SND_SOC_DAIFMT_DSP_A | SND_SOC_DAIFMT_IB_NF | |
| 256 | SND_SOC_DAIFMT_CBM_CFM, |
| 257 | }, |
Peter Ujfalusi | fff8491 | 2012-08-14 12:07:56 +0300 | [diff] [blame] | 258 | }; |
| 259 | |
| 260 | /* Audio machine driver */ |
| 261 | static struct snd_soc_card omap_twl4030_card = { |
| 262 | .owner = THIS_MODULE, |
| 263 | .dai_link = omap_twl4030_dai_links, |
| 264 | .num_links = ARRAY_SIZE(omap_twl4030_dai_links), |
Peter Ujfalusi | bd0b286 | 2012-12-31 11:51:48 +0100 | [diff] [blame] | 265 | |
| 266 | .dapm_widgets = dapm_widgets, |
| 267 | .num_dapm_widgets = ARRAY_SIZE(dapm_widgets), |
| 268 | .dapm_routes = audio_map, |
| 269 | .num_dapm_routes = ARRAY_SIZE(audio_map), |
Peter Ujfalusi | fff8491 | 2012-08-14 12:07:56 +0300 | [diff] [blame] | 270 | }; |
| 271 | |
Bill Pemberton | 7ff6000 | 2012-12-07 09:26:29 -0500 | [diff] [blame] | 272 | static int omap_twl4030_probe(struct platform_device *pdev) |
Peter Ujfalusi | fff8491 | 2012-08-14 12:07:56 +0300 | [diff] [blame] | 273 | { |
| 274 | struct omap_tw4030_pdata *pdata = dev_get_platdata(&pdev->dev); |
| 275 | struct device_node *node = pdev->dev.of_node; |
| 276 | struct snd_soc_card *card = &omap_twl4030_card; |
Peter Ujfalusi | bd0b286 | 2012-12-31 11:51:48 +0100 | [diff] [blame] | 277 | struct omap_twl4030 *priv; |
Peter Ujfalusi | fff8491 | 2012-08-14 12:07:56 +0300 | [diff] [blame] | 278 | int ret = 0; |
| 279 | |
| 280 | card->dev = &pdev->dev; |
| 281 | |
Peter Ujfalusi | bd0b286 | 2012-12-31 11:51:48 +0100 | [diff] [blame] | 282 | priv = devm_kzalloc(&pdev->dev, sizeof(struct omap_twl4030), GFP_KERNEL); |
| 283 | if (priv == NULL) |
| 284 | return -ENOMEM; |
| 285 | |
Peter Ujfalusi | fff8491 | 2012-08-14 12:07:56 +0300 | [diff] [blame] | 286 | if (node) { |
| 287 | struct device_node *dai_node; |
Peter Ujfalusi | bd0b286 | 2012-12-31 11:51:48 +0100 | [diff] [blame] | 288 | struct property *prop; |
Peter Ujfalusi | fff8491 | 2012-08-14 12:07:56 +0300 | [diff] [blame] | 289 | |
| 290 | if (snd_soc_of_parse_card_name(card, "ti,model")) { |
| 291 | dev_err(&pdev->dev, "Card name is not provided\n"); |
| 292 | return -ENODEV; |
| 293 | } |
| 294 | |
| 295 | dai_node = of_parse_phandle(node, "ti,mcbsp", 0); |
| 296 | if (!dai_node) { |
| 297 | dev_err(&pdev->dev, "McBSP node is not provided\n"); |
| 298 | return -EINVAL; |
| 299 | } |
| 300 | omap_twl4030_dai_links[0].cpu_dai_name = NULL; |
| 301 | omap_twl4030_dai_links[0].cpu_of_node = dai_node; |
| 302 | |
Peter Ujfalusi | bd0b286 | 2012-12-31 11:51:48 +0100 | [diff] [blame] | 303 | dai_node = of_parse_phandle(node, "ti,mcbsp-voice", 0); |
| 304 | if (!dai_node) { |
| 305 | card->num_links = 1; |
| 306 | } else { |
| 307 | omap_twl4030_dai_links[1].cpu_dai_name = NULL; |
| 308 | omap_twl4030_dai_links[1].cpu_of_node = dai_node; |
| 309 | } |
| 310 | |
| 311 | priv->jack_detect = of_get_named_gpio(node, |
| 312 | "ti,jack-det-gpio", 0); |
| 313 | |
| 314 | /* Optional: audio routing can be provided */ |
| 315 | prop = of_find_property(node, "ti,audio-routing", NULL); |
| 316 | if (prop) { |
| 317 | ret = snd_soc_of_parse_audio_routing(card, |
| 318 | "ti,audio-routing"); |
| 319 | if (ret) |
| 320 | return ret; |
| 321 | |
| 322 | card->fully_routed = 1; |
| 323 | } |
Peter Ujfalusi | fff8491 | 2012-08-14 12:07:56 +0300 | [diff] [blame] | 324 | } else if (pdata) { |
| 325 | if (pdata->card_name) { |
| 326 | card->name = pdata->card_name; |
| 327 | } else { |
| 328 | dev_err(&pdev->dev, "Card name is not provided\n"); |
| 329 | return -ENODEV; |
| 330 | } |
Peter Ujfalusi | bd0b286 | 2012-12-31 11:51:48 +0100 | [diff] [blame] | 331 | |
| 332 | if (!pdata->voice_connected) |
| 333 | card->num_links = 1; |
| 334 | |
| 335 | priv->jack_detect = pdata->jack_detect; |
Peter Ujfalusi | fff8491 | 2012-08-14 12:07:56 +0300 | [diff] [blame] | 336 | } else { |
| 337 | dev_err(&pdev->dev, "Missing pdata\n"); |
| 338 | return -ENODEV; |
| 339 | } |
| 340 | |
Peter Ujfalusi | bd0b286 | 2012-12-31 11:51:48 +0100 | [diff] [blame] | 341 | snd_soc_card_set_drvdata(card, priv); |
Peter Ujfalusi | fff8491 | 2012-08-14 12:07:56 +0300 | [diff] [blame] | 342 | ret = snd_soc_register_card(card); |
| 343 | if (ret) { |
| 344 | dev_err(&pdev->dev, "snd_soc_register_card() failed: %d\n", |
| 345 | ret); |
| 346 | return ret; |
| 347 | } |
| 348 | |
| 349 | return 0; |
| 350 | } |
| 351 | |
Bill Pemberton | 7ff6000 | 2012-12-07 09:26:29 -0500 | [diff] [blame] | 352 | static int omap_twl4030_remove(struct platform_device *pdev) |
Peter Ujfalusi | fff8491 | 2012-08-14 12:07:56 +0300 | [diff] [blame] | 353 | { |
| 354 | struct snd_soc_card *card = platform_get_drvdata(pdev); |
Peter Ujfalusi | bd0b286 | 2012-12-31 11:51:48 +0100 | [diff] [blame] | 355 | struct omap_twl4030 *priv = snd_soc_card_get_drvdata(card); |
Peter Ujfalusi | fff8491 | 2012-08-14 12:07:56 +0300 | [diff] [blame] | 356 | |
Peter Ujfalusi | bd0b286 | 2012-12-31 11:51:48 +0100 | [diff] [blame] | 357 | if (priv->jack_detect > 0) |
| 358 | snd_soc_jack_free_gpios(&priv->hs_jack, |
| 359 | ARRAY_SIZE(hs_jack_gpios), |
| 360 | hs_jack_gpios); |
Peter Ujfalusi | fff8491 | 2012-08-14 12:07:56 +0300 | [diff] [blame] | 361 | snd_soc_unregister_card(card); |
| 362 | |
| 363 | return 0; |
| 364 | } |
| 365 | |
| 366 | static const struct of_device_id omap_twl4030_of_match[] = { |
| 367 | {.compatible = "ti,omap-twl4030", }, |
| 368 | { }, |
| 369 | }; |
| 370 | MODULE_DEVICE_TABLE(of, omap_twl4030_of_match); |
| 371 | |
| 372 | static struct platform_driver omap_twl4030_driver = { |
| 373 | .driver = { |
| 374 | .name = "omap-twl4030", |
| 375 | .owner = THIS_MODULE, |
| 376 | .pm = &snd_soc_pm_ops, |
| 377 | .of_match_table = omap_twl4030_of_match, |
| 378 | }, |
| 379 | .probe = omap_twl4030_probe, |
Bill Pemberton | 7ff6000 | 2012-12-07 09:26:29 -0500 | [diff] [blame] | 380 | .remove = omap_twl4030_remove, |
Peter Ujfalusi | fff8491 | 2012-08-14 12:07:56 +0300 | [diff] [blame] | 381 | }; |
| 382 | |
| 383 | module_platform_driver(omap_twl4030_driver); |
| 384 | |
| 385 | MODULE_AUTHOR("Peter Ujfalusi <peter.ujfalusi@ti.com>"); |
| 386 | MODULE_DESCRIPTION("ALSA SoC for TI SoC based boards with twl4030 codec"); |
| 387 | MODULE_LICENSE("GPL"); |
| 388 | MODULE_ALIAS("platform:omap-twl4030"); |