1 | // SPDX-License-Identifier: GPL-2.0-only |
2 | /* |
3 | * omap-twl4030.c -- SoC audio for TI SoC based boards with twl4030 codec |
4 | * |
5 | * Copyright (C) 2012 Texas Instruments Incorporated - https://www.ti.com |
6 | * All rights reserved. |
7 | * |
8 | * Author: Peter Ujfalusi <peter.ujfalusi@ti.com> |
9 | * |
10 | * This driver replaces the following machine drivers: |
11 | * omap3beagle (Author: Steve Sakoman <steve@sakoman.com>) |
12 | * omap3evm (Author: Anuj Aggarwal <anuj.aggarwal@ti.com>) |
13 | * overo (Author: Steve Sakoman <steve@sakoman.com>) |
14 | * igep0020 (Author: Enric Balletbo i Serra <eballetbo@iseebcn.com>) |
15 | * zoom2 (Author: Misael Lopez Cruz <misael.lopez@ti.com>) |
16 | * sdp3430 (Author: Misael Lopez Cruz <misael.lopez@ti.com>) |
17 | */ |
18 | |
19 | #include <linux/platform_device.h> |
20 | #include <linux/platform_data/omap-twl4030.h> |
21 | #include <linux/module.h> |
22 | #include <linux/of.h> |
23 | |
24 | #include <sound/core.h> |
25 | #include <sound/pcm.h> |
26 | #include <sound/soc.h> |
27 | #include <sound/jack.h> |
28 | |
29 | #include "omap-mcbsp.h" |
30 | |
31 | struct omap_twl4030 { |
32 | struct snd_soc_jack hs_jack; |
33 | }; |
34 | |
35 | static int omap_twl4030_hw_params(struct snd_pcm_substream *substream, |
36 | struct snd_pcm_hw_params *params) |
37 | { |
38 | struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream); |
39 | unsigned int fmt; |
40 | |
41 | switch (params_channels(p: params)) { |
42 | case 2: /* Stereo I2S mode */ |
43 | fmt = SND_SOC_DAIFMT_I2S | |
44 | SND_SOC_DAIFMT_NB_NF | |
45 | SND_SOC_DAIFMT_CBM_CFM; |
46 | break; |
47 | case 4: /* Four channel TDM mode */ |
48 | fmt = SND_SOC_DAIFMT_DSP_A | |
49 | SND_SOC_DAIFMT_IB_NF | |
50 | SND_SOC_DAIFMT_CBM_CFM; |
51 | break; |
52 | default: |
53 | return -EINVAL; |
54 | } |
55 | |
56 | return snd_soc_runtime_set_dai_fmt(rtd, dai_fmt: fmt); |
57 | } |
58 | |
59 | static const struct snd_soc_ops omap_twl4030_ops = { |
60 | .hw_params = omap_twl4030_hw_params, |
61 | }; |
62 | |
63 | static const struct snd_soc_dapm_widget dapm_widgets[] = { |
64 | SND_SOC_DAPM_SPK("Earpiece Spk" , NULL), |
65 | SND_SOC_DAPM_SPK("Handsfree Spk" , NULL), |
66 | SND_SOC_DAPM_HP("Headset Stereophone" , NULL), |
67 | SND_SOC_DAPM_SPK("Ext Spk" , NULL), |
68 | SND_SOC_DAPM_SPK("Carkit Spk" , NULL), |
69 | |
70 | SND_SOC_DAPM_MIC("Main Mic" , NULL), |
71 | SND_SOC_DAPM_MIC("Sub Mic" , NULL), |
72 | SND_SOC_DAPM_MIC("Headset Mic" , NULL), |
73 | SND_SOC_DAPM_MIC("Carkit Mic" , NULL), |
74 | SND_SOC_DAPM_MIC("Digital0 Mic" , NULL), |
75 | SND_SOC_DAPM_MIC("Digital1 Mic" , NULL), |
76 | SND_SOC_DAPM_LINE("Line In" , NULL), |
77 | }; |
78 | |
79 | static const struct snd_soc_dapm_route audio_map[] = { |
80 | /* Headset Stereophone: HSOL, HSOR */ |
81 | {"Headset Stereophone" , NULL, "HSOL" }, |
82 | {"Headset Stereophone" , NULL, "HSOR" }, |
83 | /* External Speakers: HFL, HFR */ |
84 | {"Handsfree Spk" , NULL, "HFL" }, |
85 | {"Handsfree Spk" , NULL, "HFR" }, |
86 | /* External Speakers: PredrivL, PredrivR */ |
87 | {"Ext Spk" , NULL, "PREDRIVEL" }, |
88 | {"Ext Spk" , NULL, "PREDRIVER" }, |
89 | /* Carkit speakers: CARKITL, CARKITR */ |
90 | {"Carkit Spk" , NULL, "CARKITL" }, |
91 | {"Carkit Spk" , NULL, "CARKITR" }, |
92 | /* Earpiece */ |
93 | {"Earpiece Spk" , NULL, "EARPIECE" }, |
94 | |
95 | /* External Mics: MAINMIC, SUBMIC with bias */ |
96 | {"MAINMIC" , NULL, "Main Mic" }, |
97 | {"Main Mic" , NULL, "Mic Bias 1" }, |
98 | {"SUBMIC" , NULL, "Sub Mic" }, |
99 | {"Sub Mic" , NULL, "Mic Bias 2" }, |
100 | /* Headset Mic: HSMIC with bias */ |
101 | {"HSMIC" , NULL, "Headset Mic" }, |
102 | {"Headset Mic" , NULL, "Headset Mic Bias" }, |
103 | /* Digital Mics: DIGIMIC0, DIGIMIC1 with bias */ |
104 | {"DIGIMIC0" , NULL, "Digital0 Mic" }, |
105 | {"Digital0 Mic" , NULL, "Mic Bias 1" }, |
106 | {"DIGIMIC1" , NULL, "Digital1 Mic" }, |
107 | {"Digital1 Mic" , NULL, "Mic Bias 2" }, |
108 | /* Carkit In: CARKITMIC */ |
109 | {"CARKITMIC" , NULL, "Carkit Mic" }, |
110 | /* Aux In: AUXL, AUXR */ |
111 | {"AUXL" , NULL, "Line In" }, |
112 | {"AUXR" , NULL, "Line In" }, |
113 | }; |
114 | |
115 | /* Headset jack detection DAPM pins */ |
116 | static struct snd_soc_jack_pin hs_jack_pins[] = { |
117 | { |
118 | .pin = "Headset Mic" , |
119 | .mask = SND_JACK_MICROPHONE, |
120 | }, |
121 | { |
122 | .pin = "Headset Stereophone" , |
123 | .mask = SND_JACK_HEADPHONE, |
124 | }, |
125 | }; |
126 | |
127 | /* Headset jack detection gpios */ |
128 | static struct snd_soc_jack_gpio hs_jack_gpios[] = { |
129 | { |
130 | .name = "ti,jack-det" , |
131 | .report = SND_JACK_HEADSET, |
132 | .debounce_time = 200, |
133 | }, |
134 | }; |
135 | |
136 | static inline void twl4030_disconnect_pin(struct snd_soc_dapm_context *dapm, |
137 | int connected, char *pin) |
138 | { |
139 | if (!connected) |
140 | snd_soc_dapm_disable_pin(dapm, pin); |
141 | } |
142 | |
143 | static int omap_twl4030_init(struct snd_soc_pcm_runtime *rtd) |
144 | { |
145 | struct snd_soc_card *card = rtd->card; |
146 | struct snd_soc_dapm_context *dapm = &card->dapm; |
147 | struct omap_tw4030_pdata *pdata = dev_get_platdata(dev: card->dev); |
148 | struct omap_twl4030 *priv = snd_soc_card_get_drvdata(card); |
149 | int ret = 0; |
150 | |
151 | /* |
152 | * This is a bit of a hack, but the GPIO is optional so we |
153 | * only want to add the jack detection if the GPIO is there. |
154 | */ |
155 | if (of_property_present(np: card->dev->of_node, propname: "ti,jack-det-gpio" )) { |
156 | hs_jack_gpios[0].gpiod_dev = card->dev; |
157 | hs_jack_gpios[0].idx = 0; |
158 | |
159 | ret = snd_soc_card_jack_new_pins(card: rtd->card, id: "Headset Jack" , |
160 | type: SND_JACK_HEADSET, |
161 | jack: &priv->hs_jack, pins: hs_jack_pins, |
162 | ARRAY_SIZE(hs_jack_pins)); |
163 | if (ret) |
164 | return ret; |
165 | |
166 | ret = snd_soc_jack_add_gpios(jack: &priv->hs_jack, |
167 | ARRAY_SIZE(hs_jack_gpios), |
168 | gpios: hs_jack_gpios); |
169 | if (ret) |
170 | return ret; |
171 | } |
172 | |
173 | /* |
174 | * NULL pdata means we booted with DT. In this case the routing is |
175 | * provided and the card is fully routed, no need to mark pins. |
176 | */ |
177 | if (!pdata || !pdata->custom_routing) |
178 | return ret; |
179 | |
180 | /* Disable not connected paths if not used */ |
181 | twl4030_disconnect_pin(dapm, connected: pdata->has_ear, pin: "Earpiece Spk" ); |
182 | twl4030_disconnect_pin(dapm, connected: pdata->has_hf, pin: "Handsfree Spk" ); |
183 | twl4030_disconnect_pin(dapm, connected: pdata->has_hs, pin: "Headset Stereophone" ); |
184 | twl4030_disconnect_pin(dapm, connected: pdata->has_predriv, pin: "Ext Spk" ); |
185 | twl4030_disconnect_pin(dapm, connected: pdata->has_carkit, pin: "Carkit Spk" ); |
186 | |
187 | twl4030_disconnect_pin(dapm, connected: pdata->has_mainmic, pin: "Main Mic" ); |
188 | twl4030_disconnect_pin(dapm, connected: pdata->has_submic, pin: "Sub Mic" ); |
189 | twl4030_disconnect_pin(dapm, connected: pdata->has_hsmic, pin: "Headset Mic" ); |
190 | twl4030_disconnect_pin(dapm, connected: pdata->has_carkitmic, pin: "Carkit Mic" ); |
191 | twl4030_disconnect_pin(dapm, connected: pdata->has_digimic0, pin: "Digital0 Mic" ); |
192 | twl4030_disconnect_pin(dapm, connected: pdata->has_digimic1, pin: "Digital1 Mic" ); |
193 | twl4030_disconnect_pin(dapm, connected: pdata->has_linein, pin: "Line In" ); |
194 | |
195 | return ret; |
196 | } |
197 | |
198 | /* Digital audio interface glue - connects codec <--> CPU */ |
199 | SND_SOC_DAILINK_DEFS(hifi, |
200 | DAILINK_COMP_ARRAY(COMP_CPU("omap-mcbsp.2" )), |
201 | DAILINK_COMP_ARRAY(COMP_CODEC("twl4030-codec" , "twl4030-hifi" )), |
202 | DAILINK_COMP_ARRAY(COMP_PLATFORM("omap-mcbsp.2" ))); |
203 | |
204 | SND_SOC_DAILINK_DEFS(voice, |
205 | DAILINK_COMP_ARRAY(COMP_CPU("omap-mcbsp.3" )), |
206 | DAILINK_COMP_ARRAY(COMP_CODEC("twl4030-codec" , "twl4030-voice" )), |
207 | DAILINK_COMP_ARRAY(COMP_PLATFORM("omap-mcbsp.3" ))); |
208 | |
209 | static struct snd_soc_dai_link omap_twl4030_dai_links[] = { |
210 | { |
211 | .name = "TWL4030 HiFi" , |
212 | .stream_name = "TWL4030 HiFi" , |
213 | .init = omap_twl4030_init, |
214 | .ops = &omap_twl4030_ops, |
215 | SND_SOC_DAILINK_REG(hifi), |
216 | }, |
217 | { |
218 | .name = "TWL4030 Voice" , |
219 | .stream_name = "TWL4030 Voice" , |
220 | .dai_fmt = SND_SOC_DAIFMT_DSP_A | SND_SOC_DAIFMT_IB_NF | |
221 | SND_SOC_DAIFMT_CBM_CFM, |
222 | SND_SOC_DAILINK_REG(voice), |
223 | }, |
224 | }; |
225 | |
226 | /* Audio machine driver */ |
227 | static struct snd_soc_card omap_twl4030_card = { |
228 | .owner = THIS_MODULE, |
229 | .dai_link = omap_twl4030_dai_links, |
230 | .num_links = ARRAY_SIZE(omap_twl4030_dai_links), |
231 | |
232 | .dapm_widgets = dapm_widgets, |
233 | .num_dapm_widgets = ARRAY_SIZE(dapm_widgets), |
234 | .dapm_routes = audio_map, |
235 | .num_dapm_routes = ARRAY_SIZE(audio_map), |
236 | }; |
237 | |
238 | static int omap_twl4030_probe(struct platform_device *pdev) |
239 | { |
240 | struct omap_tw4030_pdata *pdata = dev_get_platdata(dev: &pdev->dev); |
241 | struct device_node *node = pdev->dev.of_node; |
242 | struct snd_soc_card *card = &omap_twl4030_card; |
243 | struct omap_twl4030 *priv; |
244 | int ret = 0; |
245 | |
246 | card->dev = &pdev->dev; |
247 | |
248 | priv = devm_kzalloc(dev: &pdev->dev, size: sizeof(struct omap_twl4030), GFP_KERNEL); |
249 | if (priv == NULL) |
250 | return -ENOMEM; |
251 | |
252 | if (node) { |
253 | struct device_node *dai_node; |
254 | struct property *prop; |
255 | |
256 | if (snd_soc_of_parse_card_name(card, propname: "ti,model" )) { |
257 | dev_err(&pdev->dev, "Card name is not provided\n" ); |
258 | return -ENODEV; |
259 | } |
260 | |
261 | dai_node = of_parse_phandle(np: node, phandle_name: "ti,mcbsp" , index: 0); |
262 | if (!dai_node) { |
263 | dev_err(&pdev->dev, "McBSP node is not provided\n" ); |
264 | return -EINVAL; |
265 | } |
266 | omap_twl4030_dai_links[0].cpus->dai_name = NULL; |
267 | omap_twl4030_dai_links[0].cpus->of_node = dai_node; |
268 | |
269 | omap_twl4030_dai_links[0].platforms->name = NULL; |
270 | omap_twl4030_dai_links[0].platforms->of_node = dai_node; |
271 | |
272 | dai_node = of_parse_phandle(np: node, phandle_name: "ti,mcbsp-voice" , index: 0); |
273 | if (!dai_node) { |
274 | card->num_links = 1; |
275 | } else { |
276 | omap_twl4030_dai_links[1].cpus->dai_name = NULL; |
277 | omap_twl4030_dai_links[1].cpus->of_node = dai_node; |
278 | |
279 | omap_twl4030_dai_links[1].platforms->name = NULL; |
280 | omap_twl4030_dai_links[1].platforms->of_node = dai_node; |
281 | } |
282 | |
283 | /* Optional: audio routing can be provided */ |
284 | prop = of_find_property(np: node, name: "ti,audio-routing" , NULL); |
285 | if (prop) { |
286 | ret = snd_soc_of_parse_audio_routing(card, |
287 | propname: "ti,audio-routing" ); |
288 | if (ret) |
289 | return ret; |
290 | |
291 | card->fully_routed = 1; |
292 | } |
293 | } else if (pdata) { |
294 | if (pdata->card_name) { |
295 | card->name = pdata->card_name; |
296 | } else { |
297 | dev_err(&pdev->dev, "Card name is not provided\n" ); |
298 | return -ENODEV; |
299 | } |
300 | |
301 | if (!pdata->voice_connected) |
302 | card->num_links = 1; |
303 | } else { |
304 | dev_err(&pdev->dev, "Missing pdata\n" ); |
305 | return -ENODEV; |
306 | } |
307 | |
308 | snd_soc_card_set_drvdata(card, data: priv); |
309 | ret = devm_snd_soc_register_card(dev: &pdev->dev, card); |
310 | if (ret) { |
311 | dev_err(&pdev->dev, "devm_snd_soc_register_card() failed: %d\n" , |
312 | ret); |
313 | return ret; |
314 | } |
315 | |
316 | return 0; |
317 | } |
318 | |
319 | static const struct of_device_id omap_twl4030_of_match[] = { |
320 | {.compatible = "ti,omap-twl4030" , }, |
321 | { }, |
322 | }; |
323 | MODULE_DEVICE_TABLE(of, omap_twl4030_of_match); |
324 | |
325 | static struct platform_driver omap_twl4030_driver = { |
326 | .driver = { |
327 | .name = "omap-twl4030" , |
328 | .pm = &snd_soc_pm_ops, |
329 | .of_match_table = omap_twl4030_of_match, |
330 | }, |
331 | .probe = omap_twl4030_probe, |
332 | }; |
333 | |
334 | module_platform_driver(omap_twl4030_driver); |
335 | |
336 | MODULE_AUTHOR("Peter Ujfalusi <peter.ujfalusi@ti.com>" ); |
337 | MODULE_DESCRIPTION("ALSA SoC for TI SoC based boards with twl4030 codec" ); |
338 | MODULE_LICENSE("GPL" ); |
339 | MODULE_ALIAS("platform:omap-twl4030" ); |
340 | |