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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; | |
fff8491c | 56 | unsigned int fmt; |
fff8491c PU |
57 | |
58 | switch (params_channels(params)) { | |
59 | case 2: /* Stereo I2S mode */ | |
60 | fmt = SND_SOC_DAIFMT_I2S | | |
61 | SND_SOC_DAIFMT_NB_NF | | |
62 | SND_SOC_DAIFMT_CBM_CFM; | |
63 | break; | |
64 | case 4: /* Four channel TDM mode */ | |
65 | fmt = SND_SOC_DAIFMT_DSP_A | | |
66 | SND_SOC_DAIFMT_IB_NF | | |
67 | SND_SOC_DAIFMT_CBM_CFM; | |
68 | break; | |
69 | default: | |
70 | return -EINVAL; | |
71 | } | |
72 | ||
dc1b36b2 | 73 | return snd_soc_runtime_set_dai_fmt(rtd, fmt); |
fff8491c PU |
74 | } |
75 | ||
76 | static struct snd_soc_ops omap_twl4030_ops = { | |
77 | .hw_params = omap_twl4030_hw_params, | |
78 | }; | |
79 | ||
bd0b286e PU |
80 | static const struct snd_soc_dapm_widget dapm_widgets[] = { |
81 | SND_SOC_DAPM_SPK("Earpiece Spk", NULL), | |
82 | SND_SOC_DAPM_SPK("Handsfree Spk", NULL), | |
83 | SND_SOC_DAPM_HP("Headset Stereophone", NULL), | |
84 | SND_SOC_DAPM_SPK("Ext Spk", NULL), | |
85 | SND_SOC_DAPM_SPK("Carkit Spk", NULL), | |
86 | ||
87 | SND_SOC_DAPM_MIC("Main Mic", NULL), | |
88 | SND_SOC_DAPM_MIC("Sub Mic", NULL), | |
89 | SND_SOC_DAPM_MIC("Headset Mic", NULL), | |
90 | SND_SOC_DAPM_MIC("Carkit Mic", NULL), | |
91 | SND_SOC_DAPM_MIC("Digital0 Mic", NULL), | |
92 | SND_SOC_DAPM_MIC("Digital1 Mic", NULL), | |
93 | SND_SOC_DAPM_LINE("Line In", NULL), | |
94 | }; | |
95 | ||
96 | static const struct snd_soc_dapm_route audio_map[] = { | |
97 | /* Headset Stereophone: HSOL, HSOR */ | |
98 | {"Headset Stereophone", NULL, "HSOL"}, | |
99 | {"Headset Stereophone", NULL, "HSOR"}, | |
100 | /* External Speakers: HFL, HFR */ | |
101 | {"Handsfree Spk", NULL, "HFL"}, | |
102 | {"Handsfree Spk", NULL, "HFR"}, | |
103 | /* External Speakers: PredrivL, PredrivR */ | |
104 | {"Ext Spk", NULL, "PREDRIVEL"}, | |
105 | {"Ext Spk", NULL, "PREDRIVER"}, | |
106 | /* Carkit speakers: CARKITL, CARKITR */ | |
107 | {"Carkit Spk", NULL, "CARKITL"}, | |
108 | {"Carkit Spk", NULL, "CARKITR"}, | |
109 | /* Earpiece */ | |
110 | {"Earpiece Spk", NULL, "EARPIECE"}, | |
111 | ||
112 | /* External Mics: MAINMIC, SUBMIC with bias */ | |
113 | {"MAINMIC", NULL, "Main Mic"}, | |
114 | {"Main Mic", NULL, "Mic Bias 1"}, | |
115 | {"SUBMIC", NULL, "Sub Mic"}, | |
116 | {"Sub Mic", NULL, "Mic Bias 2"}, | |
117 | /* Headset Mic: HSMIC with bias */ | |
118 | {"HSMIC", NULL, "Headset Mic"}, | |
119 | {"Headset Mic", NULL, "Headset Mic Bias"}, | |
120 | /* Digital Mics: DIGIMIC0, DIGIMIC1 with bias */ | |
121 | {"DIGIMIC0", NULL, "Digital0 Mic"}, | |
122 | {"Digital0 Mic", NULL, "Mic Bias 1"}, | |
123 | {"DIGIMIC1", NULL, "Digital1 Mic"}, | |
124 | {"Digital1 Mic", NULL, "Mic Bias 2"}, | |
125 | /* Carkit In: CARKITMIC */ | |
126 | {"CARKITMIC", NULL, "Carkit Mic"}, | |
127 | /* Aux In: AUXL, AUXR */ | |
128 | {"AUXL", NULL, "Line In"}, | |
129 | {"AUXR", NULL, "Line In"}, | |
130 | }; | |
131 | ||
132 | /* Headset jack detection DAPM pins */ | |
133 | static struct snd_soc_jack_pin hs_jack_pins[] = { | |
134 | { | |
135 | .pin = "Headset Mic", | |
136 | .mask = SND_JACK_MICROPHONE, | |
137 | }, | |
138 | { | |
139 | .pin = "Headset Stereophone", | |
140 | .mask = SND_JACK_HEADPHONE, | |
141 | }, | |
142 | }; | |
143 | ||
144 | /* Headset jack detection gpios */ | |
145 | static struct snd_soc_jack_gpio hs_jack_gpios[] = { | |
146 | { | |
147 | .name = "hsdet-gpio", | |
148 | .report = SND_JACK_HEADSET, | |
149 | .debounce_time = 200, | |
150 | }, | |
151 | }; | |
152 | ||
153 | static inline void twl4030_disconnect_pin(struct snd_soc_dapm_context *dapm, | |
154 | int connected, char *pin) | |
155 | { | |
156 | if (!connected) | |
157 | snd_soc_dapm_disable_pin(dapm, pin); | |
158 | } | |
159 | ||
160 | static int omap_twl4030_init(struct snd_soc_pcm_runtime *rtd) | |
161 | { | |
0596f700 | 162 | struct snd_soc_card *card = rtd->card; |
a9843112 | 163 | struct snd_soc_dapm_context *dapm = &card->dapm; |
bd0b286e PU |
164 | struct omap_tw4030_pdata *pdata = dev_get_platdata(card->dev); |
165 | struct omap_twl4030 *priv = snd_soc_card_get_drvdata(card); | |
166 | int ret = 0; | |
167 | ||
168 | /* Headset jack detection only if it is supported */ | |
169 | if (priv->jack_detect > 0) { | |
170 | hs_jack_gpios[0].gpio = priv->jack_detect; | |
171 | ||
da21cf6d LPC |
172 | ret = snd_soc_card_jack_new(rtd->card, "Headset Jack", |
173 | SND_JACK_HEADSET, &priv->hs_jack, | |
174 | hs_jack_pins, | |
175 | ARRAY_SIZE(hs_jack_pins)); | |
bd0b286e PU |
176 | if (ret) |
177 | return ret; | |
178 | ||
179 | ret = snd_soc_jack_add_gpios(&priv->hs_jack, | |
180 | ARRAY_SIZE(hs_jack_gpios), | |
181 | hs_jack_gpios); | |
182 | if (ret) | |
183 | return ret; | |
184 | } | |
185 | ||
186 | /* | |
187 | * NULL pdata means we booted with DT. In this case the routing is | |
188 | * provided and the card is fully routed, no need to mark pins. | |
189 | */ | |
190 | if (!pdata || !pdata->custom_routing) | |
191 | return ret; | |
192 | ||
193 | /* Disable not connected paths if not used */ | |
194 | twl4030_disconnect_pin(dapm, pdata->has_ear, "Earpiece Spk"); | |
195 | twl4030_disconnect_pin(dapm, pdata->has_hf, "Handsfree Spk"); | |
196 | twl4030_disconnect_pin(dapm, pdata->has_hs, "Headset Stereophone"); | |
197 | twl4030_disconnect_pin(dapm, pdata->has_predriv, "Ext Spk"); | |
198 | twl4030_disconnect_pin(dapm, pdata->has_carkit, "Carkit Spk"); | |
199 | ||
200 | twl4030_disconnect_pin(dapm, pdata->has_mainmic, "Main Mic"); | |
201 | twl4030_disconnect_pin(dapm, pdata->has_submic, "Sub Mic"); | |
202 | twl4030_disconnect_pin(dapm, pdata->has_hsmic, "Headset Mic"); | |
203 | twl4030_disconnect_pin(dapm, pdata->has_carkitmic, "Carkit Mic"); | |
204 | twl4030_disconnect_pin(dapm, pdata->has_digimic0, "Digital0 Mic"); | |
205 | twl4030_disconnect_pin(dapm, pdata->has_digimic1, "Digital1 Mic"); | |
206 | twl4030_disconnect_pin(dapm, pdata->has_linein, "Line In"); | |
207 | ||
208 | return ret; | |
209 | } | |
210 | ||
16088cb6 | 211 | static int omap_twl4030_card_remove(struct snd_soc_card *card) |
e1d4d3c8 | 212 | { |
e1d4d3c8 SW |
213 | struct omap_twl4030 *priv = snd_soc_card_get_drvdata(card); |
214 | ||
215 | if (priv->jack_detect > 0) | |
216 | snd_soc_jack_free_gpios(&priv->hs_jack, | |
217 | ARRAY_SIZE(hs_jack_gpios), | |
218 | hs_jack_gpios); | |
219 | ||
220 | return 0; | |
221 | } | |
222 | ||
fff8491c PU |
223 | /* Digital audio interface glue - connects codec <--> CPU */ |
224 | static struct snd_soc_dai_link omap_twl4030_dai_links[] = { | |
225 | { | |
bd0b286e PU |
226 | .name = "TWL4030 HiFi", |
227 | .stream_name = "TWL4030 HiFi", | |
fff8491c PU |
228 | .cpu_dai_name = "omap-mcbsp.2", |
229 | .codec_dai_name = "twl4030-hifi", | |
dc568f87 | 230 | .platform_name = "omap-mcbsp.2", |
fff8491c | 231 | .codec_name = "twl4030-codec", |
bd0b286e | 232 | .init = omap_twl4030_init, |
fff8491c PU |
233 | .ops = &omap_twl4030_ops, |
234 | }, | |
bd0b286e PU |
235 | { |
236 | .name = "TWL4030 Voice", | |
237 | .stream_name = "TWL4030 Voice", | |
238 | .cpu_dai_name = "omap-mcbsp.3", | |
239 | .codec_dai_name = "twl4030-voice", | |
fdaf42c0 | 240 | .platform_name = "omap-mcbsp.3", |
bd0b286e PU |
241 | .codec_name = "twl4030-codec", |
242 | .dai_fmt = SND_SOC_DAIFMT_DSP_A | SND_SOC_DAIFMT_IB_NF | | |
243 | SND_SOC_DAIFMT_CBM_CFM, | |
244 | }, | |
fff8491c PU |
245 | }; |
246 | ||
247 | /* Audio machine driver */ | |
248 | static struct snd_soc_card omap_twl4030_card = { | |
249 | .owner = THIS_MODULE, | |
e1d4d3c8 | 250 | .remove = omap_twl4030_card_remove, |
fff8491c PU |
251 | .dai_link = omap_twl4030_dai_links, |
252 | .num_links = ARRAY_SIZE(omap_twl4030_dai_links), | |
bd0b286e PU |
253 | |
254 | .dapm_widgets = dapm_widgets, | |
255 | .num_dapm_widgets = ARRAY_SIZE(dapm_widgets), | |
256 | .dapm_routes = audio_map, | |
257 | .num_dapm_routes = ARRAY_SIZE(audio_map), | |
fff8491c PU |
258 | }; |
259 | ||
7ff60006 | 260 | static int omap_twl4030_probe(struct platform_device *pdev) |
fff8491c PU |
261 | { |
262 | struct omap_tw4030_pdata *pdata = dev_get_platdata(&pdev->dev); | |
263 | struct device_node *node = pdev->dev.of_node; | |
264 | struct snd_soc_card *card = &omap_twl4030_card; | |
bd0b286e | 265 | struct omap_twl4030 *priv; |
fff8491c PU |
266 | int ret = 0; |
267 | ||
268 | card->dev = &pdev->dev; | |
269 | ||
bd0b286e PU |
270 | priv = devm_kzalloc(&pdev->dev, sizeof(struct omap_twl4030), GFP_KERNEL); |
271 | if (priv == NULL) | |
272 | return -ENOMEM; | |
273 | ||
fff8491c PU |
274 | if (node) { |
275 | struct device_node *dai_node; | |
bd0b286e | 276 | struct property *prop; |
fff8491c PU |
277 | |
278 | if (snd_soc_of_parse_card_name(card, "ti,model")) { | |
279 | dev_err(&pdev->dev, "Card name is not provided\n"); | |
280 | return -ENODEV; | |
281 | } | |
282 | ||
283 | dai_node = of_parse_phandle(node, "ti,mcbsp", 0); | |
284 | if (!dai_node) { | |
285 | dev_err(&pdev->dev, "McBSP node is not provided\n"); | |
286 | return -EINVAL; | |
287 | } | |
288 | omap_twl4030_dai_links[0].cpu_dai_name = NULL; | |
289 | omap_twl4030_dai_links[0].cpu_of_node = dai_node; | |
290 | ||
dc568f87 PU |
291 | omap_twl4030_dai_links[0].platform_name = NULL; |
292 | omap_twl4030_dai_links[0].platform_of_node = dai_node; | |
293 | ||
bd0b286e PU |
294 | dai_node = of_parse_phandle(node, "ti,mcbsp-voice", 0); |
295 | if (!dai_node) { | |
296 | card->num_links = 1; | |
297 | } else { | |
298 | omap_twl4030_dai_links[1].cpu_dai_name = NULL; | |
299 | omap_twl4030_dai_links[1].cpu_of_node = dai_node; | |
dc568f87 PU |
300 | |
301 | omap_twl4030_dai_links[1].platform_name = NULL; | |
302 | omap_twl4030_dai_links[1].platform_of_node = dai_node; | |
bd0b286e PU |
303 | } |
304 | ||
305 | priv->jack_detect = of_get_named_gpio(node, | |
306 | "ti,jack-det-gpio", 0); | |
307 | ||
308 | /* Optional: audio routing can be provided */ | |
309 | prop = of_find_property(node, "ti,audio-routing", NULL); | |
310 | if (prop) { | |
311 | ret = snd_soc_of_parse_audio_routing(card, | |
312 | "ti,audio-routing"); | |
313 | if (ret) | |
314 | return ret; | |
315 | ||
316 | card->fully_routed = 1; | |
317 | } | |
fff8491c PU |
318 | } else if (pdata) { |
319 | if (pdata->card_name) { | |
320 | card->name = pdata->card_name; | |
321 | } else { | |
322 | dev_err(&pdev->dev, "Card name is not provided\n"); | |
323 | return -ENODEV; | |
324 | } | |
bd0b286e PU |
325 | |
326 | if (!pdata->voice_connected) | |
327 | card->num_links = 1; | |
328 | ||
329 | priv->jack_detect = pdata->jack_detect; | |
fff8491c PU |
330 | } else { |
331 | dev_err(&pdev->dev, "Missing pdata\n"); | |
332 | return -ENODEV; | |
333 | } | |
334 | ||
bd0b286e | 335 | snd_soc_card_set_drvdata(card, priv); |
67a48b81 | 336 | ret = devm_snd_soc_register_card(&pdev->dev, card); |
fff8491c | 337 | if (ret) { |
67a48b81 | 338 | dev_err(&pdev->dev, "devm_snd_soc_register_card() failed: %d\n", |
fff8491c PU |
339 | ret); |
340 | return ret; | |
341 | } | |
342 | ||
343 | return 0; | |
344 | } | |
345 | ||
fff8491c PU |
346 | static const struct of_device_id omap_twl4030_of_match[] = { |
347 | {.compatible = "ti,omap-twl4030", }, | |
348 | { }, | |
349 | }; | |
350 | MODULE_DEVICE_TABLE(of, omap_twl4030_of_match); | |
351 | ||
352 | static struct platform_driver omap_twl4030_driver = { | |
353 | .driver = { | |
354 | .name = "omap-twl4030", | |
fff8491c PU |
355 | .pm = &snd_soc_pm_ops, |
356 | .of_match_table = omap_twl4030_of_match, | |
357 | }, | |
358 | .probe = omap_twl4030_probe, | |
fff8491c PU |
359 | }; |
360 | ||
361 | module_platform_driver(omap_twl4030_driver); | |
362 | ||
363 | MODULE_AUTHOR("Peter Ujfalusi <peter.ujfalusi@ti.com>"); | |
364 | MODULE_DESCRIPTION("ALSA SoC for TI SoC based boards with twl4030 codec"); | |
365 | MODULE_LICENSE("GPL"); | |
366 | MODULE_ALIAS("platform:omap-twl4030"); |