2 * Speyside audio support
4 * Copyright 2011 Wolfson Microelectronics
6 * This program is free software; you can redistribute it and/or modify it
7 * under the terms of the GNU General Public License as published by the
8 * Free Software Foundation; either version 2 of the License, or (at your
9 * option) any later version.
12 #include <sound/soc.h>
13 #include <sound/soc-dapm.h>
14 #include <sound/jack.h>
15 #include <linux/gpio.h>
16 #include <linux/module.h>
18 #include "../codecs/wm8996.h"
19 #include "../codecs/wm9081.h"
21 #define WM8996_HPSEL_GPIO 214
22 #define MCLK_AUDIO_RATE (512 * 48000)
24 static int speyside_set_bias_level(struct snd_soc_card *card,
25 struct snd_soc_dapm_context *dapm,
26 enum snd_soc_bias_level level)
28 struct snd_soc_dai *codec_dai = card->rtd[0].codec_dai;
31 if (dapm->dev != codec_dai->dev)
35 case SND_SOC_BIAS_STANDBY:
36 ret = snd_soc_dai_set_sysclk(codec_dai, WM8996_SYSCLK_MCLK2,
37 32768, SND_SOC_CLOCK_IN);
41 ret = snd_soc_dai_set_pll(codec_dai, WM8996_FLL_MCLK2,
44 pr_err("Failed to stop FLL\n");
56 static int speyside_set_bias_level_post(struct snd_soc_card *card,
57 struct snd_soc_dapm_context *dapm,
58 enum snd_soc_bias_level level)
60 struct snd_soc_dai *codec_dai = card->rtd[0].codec_dai;
63 if (dapm->dev != codec_dai->dev)
67 case SND_SOC_BIAS_PREPARE:
68 if (card->dapm.bias_level == SND_SOC_BIAS_STANDBY) {
69 ret = snd_soc_dai_set_pll(codec_dai, 0,
71 32768, MCLK_AUDIO_RATE);
73 pr_err("Failed to start FLL\n");
77 ret = snd_soc_dai_set_sysclk(codec_dai,
90 card->dapm.bias_level = level;
95 static struct snd_soc_jack speyside_headset;
97 /* Headset jack detection DAPM pins */
98 static struct snd_soc_jack_pin speyside_headset_pins[] = {
100 .pin = "Headset Mic",
101 .mask = SND_JACK_MICROPHONE,
105 /* Default the headphone selection to active high */
106 static int speyside_jack_polarity;
108 static int speyside_get_micbias(struct snd_soc_dapm_widget *source,
109 struct snd_soc_dapm_widget *sink)
111 if (speyside_jack_polarity && (strcmp(source->name, "MICB1") == 0))
113 if (!speyside_jack_polarity && (strcmp(source->name, "MICB2") == 0))
119 static void speyside_set_polarity(struct snd_soc_codec *codec,
122 speyside_jack_polarity = !polarity;
123 gpio_direction_output(WM8996_HPSEL_GPIO, speyside_jack_polarity);
125 /* Re-run DAPM to make sure we're using the correct mic bias */
126 snd_soc_dapm_sync(&codec->dapm);
129 static int speyside_wm8996_init(struct snd_soc_pcm_runtime *rtd)
131 struct snd_soc_dai *dai = rtd->codec_dai;
132 struct snd_soc_codec *codec = rtd->codec;
135 ret = snd_soc_dai_set_sysclk(dai, WM8996_SYSCLK_MCLK2, 32768, 0);
139 ret = gpio_request(WM8996_HPSEL_GPIO, "HP_SEL");
141 pr_err("Failed to request HP_SEL GPIO: %d\n", ret);
142 gpio_direction_output(WM8996_HPSEL_GPIO, speyside_jack_polarity);
144 ret = snd_soc_jack_new(codec, "Headset",
145 SND_JACK_LINEOUT | SND_JACK_HEADSET |
151 ret = snd_soc_jack_add_pins(&speyside_headset,
152 ARRAY_SIZE(speyside_headset_pins),
153 speyside_headset_pins);
157 wm8996_detect(codec, &speyside_headset, speyside_set_polarity);
162 static int speyside_late_probe(struct snd_soc_card *card)
164 snd_soc_dapm_ignore_suspend(&card->dapm, "Headphone");
165 snd_soc_dapm_ignore_suspend(&card->dapm, "Headset Mic");
166 snd_soc_dapm_ignore_suspend(&card->dapm, "Main AMIC");
167 snd_soc_dapm_ignore_suspend(&card->dapm, "Main DMIC");
168 snd_soc_dapm_ignore_suspend(&card->dapm, "Main Speaker");
169 snd_soc_dapm_ignore_suspend(&card->dapm, "WM1250 Output");
170 snd_soc_dapm_ignore_suspend(&card->dapm, "WM1250 Input");
175 static struct snd_soc_dai_link speyside_dai[] = {
178 .stream_name = "CPU",
179 .cpu_dai_name = "samsung-i2s.0",
180 .codec_dai_name = "wm8996-aif1",
181 .platform_name = "samsung-audio",
182 .codec_name = "wm8996.1-001a",
183 .init = speyside_wm8996_init,
184 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
185 | SND_SOC_DAIFMT_CBM_CFM,
189 .stream_name = "Baseband",
190 .cpu_dai_name = "wm8996-aif2",
191 .codec_dai_name = "wm1250-ev1",
192 .codec_name = "wm1250-ev1.1-0027",
193 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
194 | SND_SOC_DAIFMT_CBM_CFM,
199 static int speyside_wm9081_init(struct snd_soc_dapm_context *dapm)
201 /* At any time the WM9081 is active it will have this clock */
202 return snd_soc_codec_set_sysclk(dapm->codec, WM9081_SYSCLK_MCLK, 0,
206 static struct snd_soc_aux_dev speyside_aux_dev[] = {
209 .codec_name = "wm9081.1-006c",
210 .init = speyside_wm9081_init,
214 static struct snd_soc_codec_conf speyside_codec_conf[] = {
216 .dev_name = "wm9081.1-006c",
217 .name_prefix = "Sub",
221 static const struct snd_kcontrol_new controls[] = {
222 SOC_DAPM_PIN_SWITCH("Main Speaker"),
223 SOC_DAPM_PIN_SWITCH("Main DMIC"),
224 SOC_DAPM_PIN_SWITCH("Main AMIC"),
225 SOC_DAPM_PIN_SWITCH("WM1250 Input"),
226 SOC_DAPM_PIN_SWITCH("WM1250 Output"),
227 SOC_DAPM_PIN_SWITCH("Headphone"),
230 static struct snd_soc_dapm_widget widgets[] = {
231 SND_SOC_DAPM_HP("Headphone", NULL),
232 SND_SOC_DAPM_MIC("Headset Mic", NULL),
234 SND_SOC_DAPM_SPK("Main Speaker", NULL),
236 SND_SOC_DAPM_MIC("Main AMIC", NULL),
237 SND_SOC_DAPM_MIC("Main DMIC", NULL),
240 static struct snd_soc_dapm_route audio_paths[] = {
241 { "IN1RN", NULL, "MICB1" },
242 { "IN1RP", NULL, "MICB1" },
243 { "IN1RN", NULL, "MICB2" },
244 { "IN1RP", NULL, "MICB2" },
245 { "MICB1", NULL, "Headset Mic", speyside_get_micbias },
246 { "MICB2", NULL, "Headset Mic", speyside_get_micbias },
248 { "IN1LP", NULL, "MICB2" },
249 { "IN1RN", NULL, "MICB1" },
250 { "MICB2", NULL, "Main AMIC" },
252 { "DMIC1DAT", NULL, "MICB1" },
253 { "DMIC2DAT", NULL, "MICB1" },
254 { "MICB1", NULL, "Main DMIC" },
256 { "Headphone", NULL, "HPOUT1L" },
257 { "Headphone", NULL, "HPOUT1R" },
259 { "Sub IN1", NULL, "HPOUT2L" },
260 { "Sub IN2", NULL, "HPOUT2R" },
262 { "Main Speaker", NULL, "Sub SPKN" },
263 { "Main Speaker", NULL, "Sub SPKP" },
264 { "Main Speaker", NULL, "SPKDAT" },
267 static struct snd_soc_card speyside = {
269 .owner = THIS_MODULE,
270 .dai_link = speyside_dai,
271 .num_links = ARRAY_SIZE(speyside_dai),
272 .aux_dev = speyside_aux_dev,
273 .num_aux_devs = ARRAY_SIZE(speyside_aux_dev),
274 .codec_conf = speyside_codec_conf,
275 .num_configs = ARRAY_SIZE(speyside_codec_conf),
277 .set_bias_level = speyside_set_bias_level,
278 .set_bias_level_post = speyside_set_bias_level_post,
280 .controls = controls,
281 .num_controls = ARRAY_SIZE(controls),
282 .dapm_widgets = widgets,
283 .num_dapm_widgets = ARRAY_SIZE(widgets),
284 .dapm_routes = audio_paths,
285 .num_dapm_routes = ARRAY_SIZE(audio_paths),
286 .fully_routed = true,
288 .late_probe = speyside_late_probe,
291 static __devinit int speyside_probe(struct platform_device *pdev)
293 struct snd_soc_card *card = &speyside;
296 card->dev = &pdev->dev;
298 ret = snd_soc_register_card(card);
300 dev_err(&pdev->dev, "snd_soc_register_card() failed: %d\n",
308 static int __devexit speyside_remove(struct platform_device *pdev)
310 struct snd_soc_card *card = platform_get_drvdata(pdev);
312 snd_soc_unregister_card(card);
317 static struct platform_driver speyside_driver = {
320 .owner = THIS_MODULE,
321 .pm = &snd_soc_pm_ops,
323 .probe = speyside_probe,
324 .remove = __devexit_p(speyside_remove),
327 module_platform_driver(speyside_driver);
329 MODULE_DESCRIPTION("Speyside audio support");
330 MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.com>");
331 MODULE_LICENSE("GPL");
332 MODULE_ALIAS("platform:speyside");