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fff8491c PU |
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>) | |
bd0b286e PU |
14 | * zoom2 (Author: Misael Lopez Cruz <misael.lopez@ti.com>) |
15 | * sdp3430 (Author: Misael Lopez Cruz <misael.lopez@ti.com>) | |
fff8491c PU |
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> | |
bd0b286e PU |
37 | #include <linux/gpio.h> |
38 | #include <linux/of_gpio.h> | |
fff8491c PU |
39 | |
40 | #include <sound/core.h> | |
41 | #include <sound/pcm.h> | |
42 | #include <sound/soc.h> | |
bd0b286e | 43 | #include <sound/jack.h> |
fff8491c PU |
44 | |
45 | #include "omap-mcbsp.h" | |
46 | #include "omap-pcm.h" | |
47 | ||
bd0b286e PU |
48 | struct omap_twl4030 { |
49 | int jack_detect; /* board can detect jack events */ | |
50 | struct snd_soc_jack hs_jack; | |
51 | }; | |
52 | ||
fff8491c PU |
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 | ||
bd0b286e PU |
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 | ||
fff8491c PU |
236 | /* Digital audio interface glue - connects codec <--> CPU */ |
237 | static struct snd_soc_dai_link omap_twl4030_dai_links[] = { | |
238 | { | |
bd0b286e PU |
239 | .name = "TWL4030 HiFi", |
240 | .stream_name = "TWL4030 HiFi", | |
fff8491c PU |
241 | .cpu_dai_name = "omap-mcbsp.2", |
242 | .codec_dai_name = "twl4030-hifi", | |
243 | .platform_name = "omap-pcm-audio", | |
244 | .codec_name = "twl4030-codec", | |
bd0b286e | 245 | .init = omap_twl4030_init, |
fff8491c PU |
246 | .ops = &omap_twl4030_ops, |
247 | }, | |
bd0b286e PU |
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 | }, | |
fff8491c PU |
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), | |
bd0b286e PU |
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), | |
fff8491c PU |
270 | }; |
271 | ||
7ff60006 | 272 | static int omap_twl4030_probe(struct platform_device *pdev) |
fff8491c PU |
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; | |
bd0b286e | 277 | struct omap_twl4030 *priv; |
fff8491c PU |
278 | int ret = 0; |
279 | ||
280 | card->dev = &pdev->dev; | |
281 | ||
bd0b286e PU |
282 | priv = devm_kzalloc(&pdev->dev, sizeof(struct omap_twl4030), GFP_KERNEL); |
283 | if (priv == NULL) | |
284 | return -ENOMEM; | |
285 | ||
fff8491c PU |
286 | if (node) { |
287 | struct device_node *dai_node; | |
bd0b286e | 288 | struct property *prop; |
fff8491c PU |
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 | ||
bd0b286e PU |
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 | } | |
fff8491c PU |
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 | } | |
bd0b286e PU |
331 | |
332 | if (!pdata->voice_connected) | |
333 | card->num_links = 1; | |
334 | ||
335 | priv->jack_detect = pdata->jack_detect; | |
fff8491c PU |
336 | } else { |
337 | dev_err(&pdev->dev, "Missing pdata\n"); | |
338 | return -ENODEV; | |
339 | } | |
340 | ||
bd0b286e | 341 | snd_soc_card_set_drvdata(card, priv); |
fff8491c PU |
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 | ||
7ff60006 | 352 | static int omap_twl4030_remove(struct platform_device *pdev) |
fff8491c PU |
353 | { |
354 | struct snd_soc_card *card = platform_get_drvdata(pdev); | |
bd0b286e | 355 | struct omap_twl4030 *priv = snd_soc_card_get_drvdata(card); |
fff8491c | 356 | |
bd0b286e PU |
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); | |
fff8491c PU |
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, | |
7ff60006 | 380 | .remove = omap_twl4030_remove, |
fff8491c PU |
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"); |