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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#include <linux/gpio.h>
24#include <linux/of_gpio.h>
25
26#include <sound/core.h>
27#include <sound/pcm.h>
28#include <sound/soc.h>
29#include <sound/jack.h>
30
31#include "omap-mcbsp.h"
32
33struct omap_twl4030 {
34 int jack_detect; /* board can detect jack events */
35 struct snd_soc_jack hs_jack;
36};
37
38static int omap_twl4030_hw_params(struct snd_pcm_substream *substream,
39 struct snd_pcm_hw_params *params)
40{
41 struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
42 unsigned int fmt;
43
44 switch (params_channels(params)) {
45 case 2: /* Stereo I2S mode */
46 fmt = SND_SOC_DAIFMT_I2S |
47 SND_SOC_DAIFMT_NB_NF |
48 SND_SOC_DAIFMT_CBM_CFM;
49 break;
50 case 4: /* Four channel TDM mode */
51 fmt = SND_SOC_DAIFMT_DSP_A |
52 SND_SOC_DAIFMT_IB_NF |
53 SND_SOC_DAIFMT_CBM_CFM;
54 break;
55 default:
56 return -EINVAL;
57 }
58
59 return snd_soc_runtime_set_dai_fmt(rtd, fmt);
60}
61
62static const struct snd_soc_ops omap_twl4030_ops = {
63 .hw_params = omap_twl4030_hw_params,
64};
65
66static const struct snd_soc_dapm_widget dapm_widgets[] = {
67 SND_SOC_DAPM_SPK("Earpiece Spk", NULL),
68 SND_SOC_DAPM_SPK("Handsfree Spk", NULL),
69 SND_SOC_DAPM_HP("Headset Stereophone", NULL),
70 SND_SOC_DAPM_SPK("Ext Spk", NULL),
71 SND_SOC_DAPM_SPK("Carkit Spk", NULL),
72
73 SND_SOC_DAPM_MIC("Main Mic", NULL),
74 SND_SOC_DAPM_MIC("Sub Mic", NULL),
75 SND_SOC_DAPM_MIC("Headset Mic", NULL),
76 SND_SOC_DAPM_MIC("Carkit Mic", NULL),
77 SND_SOC_DAPM_MIC("Digital0 Mic", NULL),
78 SND_SOC_DAPM_MIC("Digital1 Mic", NULL),
79 SND_SOC_DAPM_LINE("Line In", NULL),
80};
81
82static const struct snd_soc_dapm_route audio_map[] = {
83 /* Headset Stereophone: HSOL, HSOR */
84 {"Headset Stereophone", NULL, "HSOL"},
85 {"Headset Stereophone", NULL, "HSOR"},
86 /* External Speakers: HFL, HFR */
87 {"Handsfree Spk", NULL, "HFL"},
88 {"Handsfree Spk", NULL, "HFR"},
89 /* External Speakers: PredrivL, PredrivR */
90 {"Ext Spk", NULL, "PREDRIVEL"},
91 {"Ext Spk", NULL, "PREDRIVER"},
92 /* Carkit speakers: CARKITL, CARKITR */
93 {"Carkit Spk", NULL, "CARKITL"},
94 {"Carkit Spk", NULL, "CARKITR"},
95 /* Earpiece */
96 {"Earpiece Spk", NULL, "EARPIECE"},
97
98 /* External Mics: MAINMIC, SUBMIC with bias */
99 {"MAINMIC", NULL, "Main Mic"},
100 {"Main Mic", NULL, "Mic Bias 1"},
101 {"SUBMIC", NULL, "Sub Mic"},
102 {"Sub Mic", NULL, "Mic Bias 2"},
103 /* Headset Mic: HSMIC with bias */
104 {"HSMIC", NULL, "Headset Mic"},
105 {"Headset Mic", NULL, "Headset Mic Bias"},
106 /* Digital Mics: DIGIMIC0, DIGIMIC1 with bias */
107 {"DIGIMIC0", NULL, "Digital0 Mic"},
108 {"Digital0 Mic", NULL, "Mic Bias 1"},
109 {"DIGIMIC1", NULL, "Digital1 Mic"},
110 {"Digital1 Mic", NULL, "Mic Bias 2"},
111 /* Carkit In: CARKITMIC */
112 {"CARKITMIC", NULL, "Carkit Mic"},
113 /* Aux In: AUXL, AUXR */
114 {"AUXL", NULL, "Line In"},
115 {"AUXR", NULL, "Line In"},
116};
117
118/* Headset jack detection DAPM pins */
119static struct snd_soc_jack_pin hs_jack_pins[] = {
120 {
121 .pin = "Headset Mic",
122 .mask = SND_JACK_MICROPHONE,
123 },
124 {
125 .pin = "Headset Stereophone",
126 .mask = SND_JACK_HEADPHONE,
127 },
128};
129
130/* Headset jack detection gpios */
131static struct snd_soc_jack_gpio hs_jack_gpios[] = {
132 {
133 .name = "hsdet-gpio",
134 .report = SND_JACK_HEADSET,
135 .debounce_time = 200,
136 },
137};
138
139static inline void twl4030_disconnect_pin(struct snd_soc_dapm_context *dapm,
140 int connected, char *pin)
141{
142 if (!connected)
143 snd_soc_dapm_disable_pin(dapm, pin);
144}
145
146static int omap_twl4030_init(struct snd_soc_pcm_runtime *rtd)
147{
148 struct snd_soc_card *card = rtd->card;
149 struct snd_soc_dapm_context *dapm = &card->dapm;
150 struct omap_tw4030_pdata *pdata = dev_get_platdata(card->dev);
151 struct omap_twl4030 *priv = snd_soc_card_get_drvdata(card);
152 int ret = 0;
153
154 /* Headset jack detection only if it is supported */
155 if (priv->jack_detect > 0) {
156 hs_jack_gpios[0].gpio = priv->jack_detect;
157
158 ret = snd_soc_card_jack_new_pins(rtd->card, "Headset Jack",
159 SND_JACK_HEADSET,
160 &priv->hs_jack, hs_jack_pins,
161 ARRAY_SIZE(hs_jack_pins));
162 if (ret)
163 return ret;
164
165 ret = snd_soc_jack_add_gpios(&priv->hs_jack,
166 ARRAY_SIZE(hs_jack_gpios),
167 hs_jack_gpios);
168 if (ret)
169 return ret;
170 }
171
172 /*
173 * NULL pdata means we booted with DT. In this case the routing is
174 * provided and the card is fully routed, no need to mark pins.
175 */
176 if (!pdata || !pdata->custom_routing)
177 return ret;
178
179 /* Disable not connected paths if not used */
180 twl4030_disconnect_pin(dapm, pdata->has_ear, "Earpiece Spk");
181 twl4030_disconnect_pin(dapm, pdata->has_hf, "Handsfree Spk");
182 twl4030_disconnect_pin(dapm, pdata->has_hs, "Headset Stereophone");
183 twl4030_disconnect_pin(dapm, pdata->has_predriv, "Ext Spk");
184 twl4030_disconnect_pin(dapm, pdata->has_carkit, "Carkit Spk");
185
186 twl4030_disconnect_pin(dapm, pdata->has_mainmic, "Main Mic");
187 twl4030_disconnect_pin(dapm, pdata->has_submic, "Sub Mic");
188 twl4030_disconnect_pin(dapm, pdata->has_hsmic, "Headset Mic");
189 twl4030_disconnect_pin(dapm, pdata->has_carkitmic, "Carkit Mic");
190 twl4030_disconnect_pin(dapm, pdata->has_digimic0, "Digital0 Mic");
191 twl4030_disconnect_pin(dapm, pdata->has_digimic1, "Digital1 Mic");
192 twl4030_disconnect_pin(dapm, pdata->has_linein, "Line In");
193
194 return ret;
195}
196
197/* Digital audio interface glue - connects codec <--> CPU */
198SND_SOC_DAILINK_DEFS(hifi,
199 DAILINK_COMP_ARRAY(COMP_CPU("omap-mcbsp.2")),
200 DAILINK_COMP_ARRAY(COMP_CODEC("twl4030-codec", "twl4030-hifi")),
201 DAILINK_COMP_ARRAY(COMP_PLATFORM("omap-mcbsp.2")));
202
203SND_SOC_DAILINK_DEFS(voice,
204 DAILINK_COMP_ARRAY(COMP_CPU("omap-mcbsp.3")),
205 DAILINK_COMP_ARRAY(COMP_CODEC("twl4030-codec", "twl4030-voice")),
206 DAILINK_COMP_ARRAY(COMP_PLATFORM("omap-mcbsp.3")));
207
208static struct snd_soc_dai_link omap_twl4030_dai_links[] = {
209 {
210 .name = "TWL4030 HiFi",
211 .stream_name = "TWL4030 HiFi",
212 .init = omap_twl4030_init,
213 .ops = &omap_twl4030_ops,
214 SND_SOC_DAILINK_REG(hifi),
215 },
216 {
217 .name = "TWL4030 Voice",
218 .stream_name = "TWL4030 Voice",
219 .dai_fmt = SND_SOC_DAIFMT_DSP_A | SND_SOC_DAIFMT_IB_NF |
220 SND_SOC_DAIFMT_CBM_CFM,
221 SND_SOC_DAILINK_REG(voice),
222 },
223};
224
225/* Audio machine driver */
226static struct snd_soc_card omap_twl4030_card = {
227 .owner = THIS_MODULE,
228 .dai_link = omap_twl4030_dai_links,
229 .num_links = ARRAY_SIZE(omap_twl4030_dai_links),
230
231 .dapm_widgets = dapm_widgets,
232 .num_dapm_widgets = ARRAY_SIZE(dapm_widgets),
233 .dapm_routes = audio_map,
234 .num_dapm_routes = ARRAY_SIZE(audio_map),
235};
236
237static int omap_twl4030_probe(struct platform_device *pdev)
238{
239 struct omap_tw4030_pdata *pdata = dev_get_platdata(&pdev->dev);
240 struct device_node *node = pdev->dev.of_node;
241 struct snd_soc_card *card = &omap_twl4030_card;
242 struct omap_twl4030 *priv;
243 int ret = 0;
244
245 card->dev = &pdev->dev;
246
247 priv = devm_kzalloc(&pdev->dev, sizeof(struct omap_twl4030), GFP_KERNEL);
248 if (priv == NULL)
249 return -ENOMEM;
250
251 if (node) {
252 struct device_node *dai_node;
253 struct property *prop;
254
255 if (snd_soc_of_parse_card_name(card, "ti,model")) {
256 dev_err(&pdev->dev, "Card name is not provided\n");
257 return -ENODEV;
258 }
259
260 dai_node = of_parse_phandle(node, "ti,mcbsp", 0);
261 if (!dai_node) {
262 dev_err(&pdev->dev, "McBSP node is not provided\n");
263 return -EINVAL;
264 }
265 omap_twl4030_dai_links[0].cpus->dai_name = NULL;
266 omap_twl4030_dai_links[0].cpus->of_node = dai_node;
267
268 omap_twl4030_dai_links[0].platforms->name = NULL;
269 omap_twl4030_dai_links[0].platforms->of_node = dai_node;
270
271 dai_node = of_parse_phandle(node, "ti,mcbsp-voice", 0);
272 if (!dai_node) {
273 card->num_links = 1;
274 } else {
275 omap_twl4030_dai_links[1].cpus->dai_name = NULL;
276 omap_twl4030_dai_links[1].cpus->of_node = dai_node;
277
278 omap_twl4030_dai_links[1].platforms->name = NULL;
279 omap_twl4030_dai_links[1].platforms->of_node = dai_node;
280 }
281
282 priv->jack_detect = of_get_named_gpio(node,
283 "ti,jack-det-gpio", 0);
284
285 /* Optional: audio routing can be provided */
286 prop = of_find_property(node, "ti,audio-routing", NULL);
287 if (prop) {
288 ret = snd_soc_of_parse_audio_routing(card,
289 "ti,audio-routing");
290 if (ret)
291 return ret;
292
293 card->fully_routed = 1;
294 }
295 } else if (pdata) {
296 if (pdata->card_name) {
297 card->name = pdata->card_name;
298 } else {
299 dev_err(&pdev->dev, "Card name is not provided\n");
300 return -ENODEV;
301 }
302
303 if (!pdata->voice_connected)
304 card->num_links = 1;
305
306 priv->jack_detect = pdata->jack_detect;
307 } else {
308 dev_err(&pdev->dev, "Missing pdata\n");
309 return -ENODEV;
310 }
311
312 snd_soc_card_set_drvdata(card, priv);
313 ret = devm_snd_soc_register_card(&pdev->dev, card);
314 if (ret) {
315 dev_err(&pdev->dev, "devm_snd_soc_register_card() failed: %d\n",
316 ret);
317 return ret;
318 }
319
320 return 0;
321}
322
323static const struct of_device_id omap_twl4030_of_match[] = {
324 {.compatible = "ti,omap-twl4030", },
325 { },
326};
327MODULE_DEVICE_TABLE(of, omap_twl4030_of_match);
328
329static struct platform_driver omap_twl4030_driver = {
330 .driver = {
331 .name = "omap-twl4030",
332 .pm = &snd_soc_pm_ops,
333 .of_match_table = omap_twl4030_of_match,
334 },
335 .probe = omap_twl4030_probe,
336};
337
338module_platform_driver(omap_twl4030_driver);
339
340MODULE_AUTHOR("Peter Ujfalusi <peter.ujfalusi@ti.com>");
341MODULE_DESCRIPTION("ALSA SoC for TI SoC based boards with twl4030 codec");
342MODULE_LICENSE("GPL");
343MODULE_ALIAS("platform:omap-twl4030");