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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" | |
fff8491c | 46 | |
bd0b286e PU |
47 | struct omap_twl4030 { |
48 | int jack_detect; /* board can detect jack events */ | |
49 | struct snd_soc_jack hs_jack; | |
50 | }; | |
51 | ||
fff8491c PU |
52 | static int omap_twl4030_hw_params(struct snd_pcm_substream *substream, |
53 | struct snd_pcm_hw_params *params) | |
54 | { | |
55 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
56 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
57 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
0596f700 | 58 | struct snd_soc_card *card = rtd->card; |
fff8491c PU |
59 | unsigned int fmt; |
60 | int ret; | |
61 | ||
62 | switch (params_channels(params)) { | |
63 | case 2: /* Stereo I2S mode */ | |
64 | fmt = SND_SOC_DAIFMT_I2S | | |
65 | SND_SOC_DAIFMT_NB_NF | | |
66 | SND_SOC_DAIFMT_CBM_CFM; | |
67 | break; | |
68 | case 4: /* Four channel TDM mode */ | |
69 | fmt = SND_SOC_DAIFMT_DSP_A | | |
70 | SND_SOC_DAIFMT_IB_NF | | |
71 | SND_SOC_DAIFMT_CBM_CFM; | |
72 | break; | |
73 | default: | |
74 | return -EINVAL; | |
75 | } | |
76 | ||
77 | /* Set codec DAI configuration */ | |
78 | ret = snd_soc_dai_set_fmt(codec_dai, fmt); | |
79 | if (ret < 0) { | |
80 | dev_err(card->dev, "can't set codec DAI configuration\n"); | |
81 | return ret; | |
82 | } | |
83 | ||
84 | /* Set cpu DAI configuration */ | |
85 | ret = snd_soc_dai_set_fmt(cpu_dai, fmt); | |
86 | if (ret < 0) { | |
87 | dev_err(card->dev, "can't set cpu DAI configuration\n"); | |
88 | return ret; | |
89 | } | |
90 | ||
91 | return 0; | |
92 | } | |
93 | ||
94 | static struct snd_soc_ops omap_twl4030_ops = { | |
95 | .hw_params = omap_twl4030_hw_params, | |
96 | }; | |
97 | ||
bd0b286e PU |
98 | static const struct snd_soc_dapm_widget dapm_widgets[] = { |
99 | SND_SOC_DAPM_SPK("Earpiece Spk", NULL), | |
100 | SND_SOC_DAPM_SPK("Handsfree Spk", NULL), | |
101 | SND_SOC_DAPM_HP("Headset Stereophone", NULL), | |
102 | SND_SOC_DAPM_SPK("Ext Spk", NULL), | |
103 | SND_SOC_DAPM_SPK("Carkit Spk", NULL), | |
104 | ||
105 | SND_SOC_DAPM_MIC("Main Mic", NULL), | |
106 | SND_SOC_DAPM_MIC("Sub Mic", NULL), | |
107 | SND_SOC_DAPM_MIC("Headset Mic", NULL), | |
108 | SND_SOC_DAPM_MIC("Carkit Mic", NULL), | |
109 | SND_SOC_DAPM_MIC("Digital0 Mic", NULL), | |
110 | SND_SOC_DAPM_MIC("Digital1 Mic", NULL), | |
111 | SND_SOC_DAPM_LINE("Line In", NULL), | |
112 | }; | |
113 | ||
114 | static const struct snd_soc_dapm_route audio_map[] = { | |
115 | /* Headset Stereophone: HSOL, HSOR */ | |
116 | {"Headset Stereophone", NULL, "HSOL"}, | |
117 | {"Headset Stereophone", NULL, "HSOR"}, | |
118 | /* External Speakers: HFL, HFR */ | |
119 | {"Handsfree Spk", NULL, "HFL"}, | |
120 | {"Handsfree Spk", NULL, "HFR"}, | |
121 | /* External Speakers: PredrivL, PredrivR */ | |
122 | {"Ext Spk", NULL, "PREDRIVEL"}, | |
123 | {"Ext Spk", NULL, "PREDRIVER"}, | |
124 | /* Carkit speakers: CARKITL, CARKITR */ | |
125 | {"Carkit Spk", NULL, "CARKITL"}, | |
126 | {"Carkit Spk", NULL, "CARKITR"}, | |
127 | /* Earpiece */ | |
128 | {"Earpiece Spk", NULL, "EARPIECE"}, | |
129 | ||
130 | /* External Mics: MAINMIC, SUBMIC with bias */ | |
131 | {"MAINMIC", NULL, "Main Mic"}, | |
132 | {"Main Mic", NULL, "Mic Bias 1"}, | |
133 | {"SUBMIC", NULL, "Sub Mic"}, | |
134 | {"Sub Mic", NULL, "Mic Bias 2"}, | |
135 | /* Headset Mic: HSMIC with bias */ | |
136 | {"HSMIC", NULL, "Headset Mic"}, | |
137 | {"Headset Mic", NULL, "Headset Mic Bias"}, | |
138 | /* Digital Mics: DIGIMIC0, DIGIMIC1 with bias */ | |
139 | {"DIGIMIC0", NULL, "Digital0 Mic"}, | |
140 | {"Digital0 Mic", NULL, "Mic Bias 1"}, | |
141 | {"DIGIMIC1", NULL, "Digital1 Mic"}, | |
142 | {"Digital1 Mic", NULL, "Mic Bias 2"}, | |
143 | /* Carkit In: CARKITMIC */ | |
144 | {"CARKITMIC", NULL, "Carkit Mic"}, | |
145 | /* Aux In: AUXL, AUXR */ | |
146 | {"AUXL", NULL, "Line In"}, | |
147 | {"AUXR", NULL, "Line In"}, | |
148 | }; | |
149 | ||
150 | /* Headset jack detection DAPM pins */ | |
151 | static struct snd_soc_jack_pin hs_jack_pins[] = { | |
152 | { | |
153 | .pin = "Headset Mic", | |
154 | .mask = SND_JACK_MICROPHONE, | |
155 | }, | |
156 | { | |
157 | .pin = "Headset Stereophone", | |
158 | .mask = SND_JACK_HEADPHONE, | |
159 | }, | |
160 | }; | |
161 | ||
162 | /* Headset jack detection gpios */ | |
163 | static struct snd_soc_jack_gpio hs_jack_gpios[] = { | |
164 | { | |
165 | .name = "hsdet-gpio", | |
166 | .report = SND_JACK_HEADSET, | |
167 | .debounce_time = 200, | |
168 | }, | |
169 | }; | |
170 | ||
171 | static inline void twl4030_disconnect_pin(struct snd_soc_dapm_context *dapm, | |
172 | int connected, char *pin) | |
173 | { | |
174 | if (!connected) | |
175 | snd_soc_dapm_disable_pin(dapm, pin); | |
176 | } | |
177 | ||
178 | static int omap_twl4030_init(struct snd_soc_pcm_runtime *rtd) | |
179 | { | |
180 | struct snd_soc_codec *codec = rtd->codec; | |
0596f700 | 181 | struct snd_soc_card *card = rtd->card; |
bd0b286e PU |
182 | struct snd_soc_dapm_context *dapm = &codec->dapm; |
183 | struct omap_tw4030_pdata *pdata = dev_get_platdata(card->dev); | |
184 | struct omap_twl4030 *priv = snd_soc_card_get_drvdata(card); | |
185 | int ret = 0; | |
186 | ||
187 | /* Headset jack detection only if it is supported */ | |
188 | if (priv->jack_detect > 0) { | |
189 | hs_jack_gpios[0].gpio = priv->jack_detect; | |
190 | ||
191 | ret = snd_soc_jack_new(codec, "Headset Jack", SND_JACK_HEADSET, | |
192 | &priv->hs_jack); | |
193 | if (ret) | |
194 | return ret; | |
195 | ||
196 | ret = snd_soc_jack_add_pins(&priv->hs_jack, | |
197 | ARRAY_SIZE(hs_jack_pins), | |
198 | hs_jack_pins); | |
199 | if (ret) | |
200 | return ret; | |
201 | ||
202 | ret = snd_soc_jack_add_gpios(&priv->hs_jack, | |
203 | ARRAY_SIZE(hs_jack_gpios), | |
204 | hs_jack_gpios); | |
205 | if (ret) | |
206 | return ret; | |
207 | } | |
208 | ||
209 | /* | |
210 | * NULL pdata means we booted with DT. In this case the routing is | |
211 | * provided and the card is fully routed, no need to mark pins. | |
212 | */ | |
213 | if (!pdata || !pdata->custom_routing) | |
214 | return ret; | |
215 | ||
216 | /* Disable not connected paths if not used */ | |
217 | twl4030_disconnect_pin(dapm, pdata->has_ear, "Earpiece Spk"); | |
218 | twl4030_disconnect_pin(dapm, pdata->has_hf, "Handsfree Spk"); | |
219 | twl4030_disconnect_pin(dapm, pdata->has_hs, "Headset Stereophone"); | |
220 | twl4030_disconnect_pin(dapm, pdata->has_predriv, "Ext Spk"); | |
221 | twl4030_disconnect_pin(dapm, pdata->has_carkit, "Carkit Spk"); | |
222 | ||
223 | twl4030_disconnect_pin(dapm, pdata->has_mainmic, "Main Mic"); | |
224 | twl4030_disconnect_pin(dapm, pdata->has_submic, "Sub Mic"); | |
225 | twl4030_disconnect_pin(dapm, pdata->has_hsmic, "Headset Mic"); | |
226 | twl4030_disconnect_pin(dapm, pdata->has_carkitmic, "Carkit Mic"); | |
227 | twl4030_disconnect_pin(dapm, pdata->has_digimic0, "Digital0 Mic"); | |
228 | twl4030_disconnect_pin(dapm, pdata->has_digimic1, "Digital1 Mic"); | |
229 | twl4030_disconnect_pin(dapm, pdata->has_linein, "Line In"); | |
230 | ||
231 | return ret; | |
232 | } | |
233 | ||
16088cb6 | 234 | static int omap_twl4030_card_remove(struct snd_soc_card *card) |
e1d4d3c8 | 235 | { |
e1d4d3c8 SW |
236 | struct omap_twl4030 *priv = snd_soc_card_get_drvdata(card); |
237 | ||
238 | if (priv->jack_detect > 0) | |
239 | snd_soc_jack_free_gpios(&priv->hs_jack, | |
240 | ARRAY_SIZE(hs_jack_gpios), | |
241 | hs_jack_gpios); | |
242 | ||
243 | return 0; | |
244 | } | |
245 | ||
fff8491c PU |
246 | /* Digital audio interface glue - connects codec <--> CPU */ |
247 | static struct snd_soc_dai_link omap_twl4030_dai_links[] = { | |
248 | { | |
bd0b286e PU |
249 | .name = "TWL4030 HiFi", |
250 | .stream_name = "TWL4030 HiFi", | |
fff8491c PU |
251 | .cpu_dai_name = "omap-mcbsp.2", |
252 | .codec_dai_name = "twl4030-hifi", | |
dc568f87 | 253 | .platform_name = "omap-mcbsp.2", |
fff8491c | 254 | .codec_name = "twl4030-codec", |
bd0b286e | 255 | .init = omap_twl4030_init, |
fff8491c PU |
256 | .ops = &omap_twl4030_ops, |
257 | }, | |
bd0b286e PU |
258 | { |
259 | .name = "TWL4030 Voice", | |
260 | .stream_name = "TWL4030 Voice", | |
261 | .cpu_dai_name = "omap-mcbsp.3", | |
262 | .codec_dai_name = "twl4030-voice", | |
fdaf42c0 | 263 | .platform_name = "omap-mcbsp.3", |
bd0b286e PU |
264 | .codec_name = "twl4030-codec", |
265 | .dai_fmt = SND_SOC_DAIFMT_DSP_A | SND_SOC_DAIFMT_IB_NF | | |
266 | SND_SOC_DAIFMT_CBM_CFM, | |
267 | }, | |
fff8491c PU |
268 | }; |
269 | ||
270 | /* Audio machine driver */ | |
271 | static struct snd_soc_card omap_twl4030_card = { | |
272 | .owner = THIS_MODULE, | |
e1d4d3c8 | 273 | .remove = omap_twl4030_card_remove, |
fff8491c PU |
274 | .dai_link = omap_twl4030_dai_links, |
275 | .num_links = ARRAY_SIZE(omap_twl4030_dai_links), | |
bd0b286e PU |
276 | |
277 | .dapm_widgets = dapm_widgets, | |
278 | .num_dapm_widgets = ARRAY_SIZE(dapm_widgets), | |
279 | .dapm_routes = audio_map, | |
280 | .num_dapm_routes = ARRAY_SIZE(audio_map), | |
fff8491c PU |
281 | }; |
282 | ||
7ff60006 | 283 | static int omap_twl4030_probe(struct platform_device *pdev) |
fff8491c PU |
284 | { |
285 | struct omap_tw4030_pdata *pdata = dev_get_platdata(&pdev->dev); | |
286 | struct device_node *node = pdev->dev.of_node; | |
287 | struct snd_soc_card *card = &omap_twl4030_card; | |
bd0b286e | 288 | struct omap_twl4030 *priv; |
fff8491c PU |
289 | int ret = 0; |
290 | ||
291 | card->dev = &pdev->dev; | |
292 | ||
bd0b286e PU |
293 | priv = devm_kzalloc(&pdev->dev, sizeof(struct omap_twl4030), GFP_KERNEL); |
294 | if (priv == NULL) | |
295 | return -ENOMEM; | |
296 | ||
fff8491c PU |
297 | if (node) { |
298 | struct device_node *dai_node; | |
bd0b286e | 299 | struct property *prop; |
fff8491c PU |
300 | |
301 | if (snd_soc_of_parse_card_name(card, "ti,model")) { | |
302 | dev_err(&pdev->dev, "Card name is not provided\n"); | |
303 | return -ENODEV; | |
304 | } | |
305 | ||
306 | dai_node = of_parse_phandle(node, "ti,mcbsp", 0); | |
307 | if (!dai_node) { | |
308 | dev_err(&pdev->dev, "McBSP node is not provided\n"); | |
309 | return -EINVAL; | |
310 | } | |
311 | omap_twl4030_dai_links[0].cpu_dai_name = NULL; | |
312 | omap_twl4030_dai_links[0].cpu_of_node = dai_node; | |
313 | ||
dc568f87 PU |
314 | omap_twl4030_dai_links[0].platform_name = NULL; |
315 | omap_twl4030_dai_links[0].platform_of_node = dai_node; | |
316 | ||
bd0b286e PU |
317 | dai_node = of_parse_phandle(node, "ti,mcbsp-voice", 0); |
318 | if (!dai_node) { | |
319 | card->num_links = 1; | |
320 | } else { | |
321 | omap_twl4030_dai_links[1].cpu_dai_name = NULL; | |
322 | omap_twl4030_dai_links[1].cpu_of_node = dai_node; | |
dc568f87 PU |
323 | |
324 | omap_twl4030_dai_links[1].platform_name = NULL; | |
325 | omap_twl4030_dai_links[1].platform_of_node = dai_node; | |
bd0b286e PU |
326 | } |
327 | ||
328 | priv->jack_detect = of_get_named_gpio(node, | |
329 | "ti,jack-det-gpio", 0); | |
330 | ||
331 | /* Optional: audio routing can be provided */ | |
332 | prop = of_find_property(node, "ti,audio-routing", NULL); | |
333 | if (prop) { | |
334 | ret = snd_soc_of_parse_audio_routing(card, | |
335 | "ti,audio-routing"); | |
336 | if (ret) | |
337 | return ret; | |
338 | ||
339 | card->fully_routed = 1; | |
340 | } | |
fff8491c PU |
341 | } else if (pdata) { |
342 | if (pdata->card_name) { | |
343 | card->name = pdata->card_name; | |
344 | } else { | |
345 | dev_err(&pdev->dev, "Card name is not provided\n"); | |
346 | return -ENODEV; | |
347 | } | |
bd0b286e PU |
348 | |
349 | if (!pdata->voice_connected) | |
350 | card->num_links = 1; | |
351 | ||
352 | priv->jack_detect = pdata->jack_detect; | |
fff8491c PU |
353 | } else { |
354 | dev_err(&pdev->dev, "Missing pdata\n"); | |
355 | return -ENODEV; | |
356 | } | |
357 | ||
bd0b286e | 358 | snd_soc_card_set_drvdata(card, priv); |
67a48b81 | 359 | ret = devm_snd_soc_register_card(&pdev->dev, card); |
fff8491c | 360 | if (ret) { |
67a48b81 | 361 | dev_err(&pdev->dev, "devm_snd_soc_register_card() failed: %d\n", |
fff8491c PU |
362 | ret); |
363 | return ret; | |
364 | } | |
365 | ||
366 | return 0; | |
367 | } | |
368 | ||
fff8491c PU |
369 | static const struct of_device_id omap_twl4030_of_match[] = { |
370 | {.compatible = "ti,omap-twl4030", }, | |
371 | { }, | |
372 | }; | |
373 | MODULE_DEVICE_TABLE(of, omap_twl4030_of_match); | |
374 | ||
375 | static struct platform_driver omap_twl4030_driver = { | |
376 | .driver = { | |
377 | .name = "omap-twl4030", | |
378 | .owner = THIS_MODULE, | |
379 | .pm = &snd_soc_pm_ops, | |
380 | .of_match_table = omap_twl4030_of_match, | |
381 | }, | |
382 | .probe = omap_twl4030_probe, | |
fff8491c PU |
383 | }; |
384 | ||
385 | module_platform_driver(omap_twl4030_driver); | |
386 | ||
387 | MODULE_AUTHOR("Peter Ujfalusi <peter.ujfalusi@ti.com>"); | |
388 | MODULE_DESCRIPTION("ALSA SoC for TI SoC based boards with twl4030 codec"); | |
389 | MODULE_LICENSE("GPL"); | |
390 | MODULE_ALIAS("platform:omap-twl4030"); |