Commit | Line | Data |
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5033f43c | 1 | /* sound/soc/samsung/smartq_wm8987.c |
ce93a370 MC |
2 | * |
3 | * Copyright 2010 Maurus Cuelenaere <mcuelenaere@gmail.com> | |
4 | * | |
5 | * Based on smdk6410_wm8987.c | |
6 | * Copyright 2007 Wolfson Microelectronics PLC. - linux@wolfsonmicro.com | |
7 | * Graeme Gregory - graeme.gregory@wolfsonmicro.com | |
8 | * | |
9 | * This program is free software; you can redistribute it and/or modify it | |
10 | * under the terms of the GNU General Public License as published by the | |
11 | * Free Software Foundation; either version 2 of the License, or (at your | |
12 | * option) any later version. | |
13 | * | |
14 | */ | |
15 | ||
ce93a370 | 16 | #include <linux/gpio.h> |
da155d5b | 17 | #include <linux/module.h> |
ce93a370 | 18 | |
1c8f2c42 | 19 | #include <sound/soc.h> |
ce93a370 MC |
20 | #include <sound/jack.h> |
21 | ||
22 | #include <asm/mach-types.h> | |
23 | ||
b9493d6c | 24 | #include "i2s.h" |
ce93a370 MC |
25 | #include "../codecs/wm8750.h" |
26 | ||
27 | /* | |
28 | * WM8987 is register compatible with WM8750, so using that as base driver. | |
29 | */ | |
30 | ||
31 | static struct snd_soc_card snd_soc_smartq; | |
32 | ||
33 | static int smartq_hifi_hw_params(struct snd_pcm_substream *substream, | |
34 | struct snd_pcm_hw_params *params) | |
35 | { | |
36 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
74bd21e9 AL |
37 | struct snd_soc_dai *codec_dai = rtd->codec_dai; |
38 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
ce93a370 MC |
39 | unsigned int clk = 0; |
40 | int ret; | |
41 | ||
ce93a370 MC |
42 | switch (params_rate(params)) { |
43 | case 8000: | |
44 | case 16000: | |
45 | case 32000: | |
46 | case 48000: | |
47 | case 96000: | |
48 | clk = 12288000; | |
49 | break; | |
50 | case 11025: | |
51 | case 22050: | |
52 | case 44100: | |
53 | case 88200: | |
54 | clk = 11289600; | |
55 | break; | |
56 | } | |
57 | ||
58 | /* set codec DAI configuration */ | |
59 | ret = snd_soc_dai_set_fmt(codec_dai, SND_SOC_DAIFMT_I2S | | |
60 | SND_SOC_DAIFMT_NB_NF | | |
61 | SND_SOC_DAIFMT_CBS_CFS); | |
62 | if (ret < 0) | |
63 | return ret; | |
64 | ||
65 | /* set cpu DAI configuration */ | |
66 | ret = snd_soc_dai_set_fmt(cpu_dai, SND_SOC_DAIFMT_I2S | | |
67 | SND_SOC_DAIFMT_NB_NF | | |
68 | SND_SOC_DAIFMT_CBS_CFS); | |
69 | if (ret < 0) | |
70 | return ret; | |
71 | ||
b9493d6c JB |
72 | /* Use PCLK for I2S signal generation */ |
73 | ret = snd_soc_dai_set_sysclk(cpu_dai, SAMSUNG_I2S_RCLKSRC_0, | |
74 | 0, SND_SOC_CLOCK_IN); | |
ce93a370 MC |
75 | if (ret < 0) |
76 | return ret; | |
77 | ||
b9493d6c JB |
78 | /* Gate the RCLK output on PAD */ |
79 | ret = snd_soc_dai_set_sysclk(cpu_dai, SAMSUNG_I2S_CDCLK, | |
80 | 0, SND_SOC_CLOCK_IN); | |
ce93a370 MC |
81 | if (ret < 0) |
82 | return ret; | |
83 | ||
b9493d6c JB |
84 | /* set the codec system clock for DAC and ADC */ |
85 | ret = snd_soc_dai_set_sysclk(codec_dai, WM8750_SYSCLK, clk, | |
86 | SND_SOC_CLOCK_IN); | |
ce93a370 MC |
87 | if (ret < 0) |
88 | return ret; | |
89 | ||
90 | return 0; | |
91 | } | |
92 | ||
93 | /* | |
94 | * SmartQ WM8987 HiFi DAI operations. | |
95 | */ | |
96 | static struct snd_soc_ops smartq_hifi_ops = { | |
97 | .hw_params = smartq_hifi_hw_params, | |
98 | }; | |
99 | ||
100 | static struct snd_soc_jack smartq_jack; | |
101 | ||
102 | static struct snd_soc_jack_pin smartq_jack_pins[] = { | |
103 | /* Disable speaker when headphone is plugged in */ | |
104 | { | |
105 | .pin = "Internal Speaker", | |
106 | .mask = SND_JACK_HEADPHONE, | |
ce93a370 MC |
107 | }, |
108 | }; | |
109 | ||
110 | static struct snd_soc_jack_gpio smartq_jack_gpios[] = { | |
111 | { | |
112 | .gpio = S3C64XX_GPL(12), | |
113 | .name = "headphone detect", | |
114 | .report = SND_JACK_HEADPHONE, | |
115 | .debounce_time = 200, | |
116 | }, | |
117 | }; | |
118 | ||
119 | static const struct snd_kcontrol_new wm8987_smartq_controls[] = { | |
120 | SOC_DAPM_PIN_SWITCH("Internal Speaker"), | |
121 | SOC_DAPM_PIN_SWITCH("Headphone Jack"), | |
122 | SOC_DAPM_PIN_SWITCH("Internal Mic"), | |
123 | }; | |
124 | ||
125 | static int smartq_speaker_event(struct snd_soc_dapm_widget *w, | |
126 | struct snd_kcontrol *k, | |
127 | int event) | |
128 | { | |
129 | gpio_set_value(S3C64XX_GPK(12), SND_SOC_DAPM_EVENT_OFF(event)); | |
130 | ||
131 | return 0; | |
132 | } | |
133 | ||
134 | static const struct snd_soc_dapm_widget wm8987_dapm_widgets[] = { | |
135 | SND_SOC_DAPM_SPK("Internal Speaker", smartq_speaker_event), | |
136 | SND_SOC_DAPM_HP("Headphone Jack", NULL), | |
137 | SND_SOC_DAPM_MIC("Internal Mic", NULL), | |
138 | }; | |
139 | ||
140 | static const struct snd_soc_dapm_route audio_map[] = { | |
141 | {"Headphone Jack", NULL, "LOUT2"}, | |
142 | {"Headphone Jack", NULL, "ROUT2"}, | |
143 | ||
144 | {"Internal Speaker", NULL, "LOUT2"}, | |
145 | {"Internal Speaker", NULL, "ROUT2"}, | |
146 | ||
147 | {"Mic Bias", NULL, "Internal Mic"}, | |
148 | {"LINPUT2", NULL, "Mic Bias"}, | |
149 | }; | |
150 | ||
74bd21e9 | 151 | static int smartq_wm8987_init(struct snd_soc_pcm_runtime *rtd) |
ce93a370 | 152 | { |
74bd21e9 | 153 | struct snd_soc_codec *codec = rtd->codec; |
ce6120cc | 154 | struct snd_soc_dapm_context *dapm = &codec->dapm; |
ce93a370 MC |
155 | int err = 0; |
156 | ||
ce93a370 | 157 | /* set endpoints to not connected */ |
ce6120cc LG |
158 | snd_soc_dapm_nc_pin(dapm, "LINPUT1"); |
159 | snd_soc_dapm_nc_pin(dapm, "RINPUT1"); | |
160 | snd_soc_dapm_nc_pin(dapm, "OUT3"); | |
161 | snd_soc_dapm_nc_pin(dapm, "ROUT1"); | |
ce93a370 MC |
162 | |
163 | /* set endpoints to default off mode */ | |
ce6120cc LG |
164 | snd_soc_dapm_enable_pin(dapm, "Internal Speaker"); |
165 | snd_soc_dapm_enable_pin(dapm, "Internal Mic"); | |
166 | snd_soc_dapm_disable_pin(dapm, "Headphone Jack"); | |
ce93a370 | 167 | |
ce93a370 | 168 | /* Headphone jack detection */ |
74bd21e9 | 169 | err = snd_soc_jack_new(codec, "Headphone Jack", |
ce93a370 MC |
170 | SND_JACK_HEADPHONE, &smartq_jack); |
171 | if (err) | |
172 | return err; | |
173 | ||
174 | err = snd_soc_jack_add_pins(&smartq_jack, ARRAY_SIZE(smartq_jack_pins), | |
175 | smartq_jack_pins); | |
176 | if (err) | |
177 | return err; | |
178 | ||
179 | err = snd_soc_jack_add_gpios(&smartq_jack, | |
180 | ARRAY_SIZE(smartq_jack_gpios), | |
181 | smartq_jack_gpios); | |
182 | ||
183 | return err; | |
184 | } | |
185 | ||
186 | static struct snd_soc_dai_link smartq_dai[] = { | |
187 | { | |
188 | .name = "wm8987", | |
189 | .stream_name = "SmartQ Hi-Fi", | |
b9493d6c | 190 | .cpu_dai_name = "samsung-i2s.0", |
f0fba2ad | 191 | .codec_dai_name = "wm8750-hifi", |
58bb4072 | 192 | .platform_name = "samsung-audio", |
dc5de62b | 193 | .codec_name = "wm8750.0-0x1a", |
ce93a370 MC |
194 | .init = smartq_wm8987_init, |
195 | .ops = &smartq_hifi_ops, | |
196 | }, | |
197 | }; | |
198 | ||
199 | static struct snd_soc_card snd_soc_smartq = { | |
200 | .name = "SmartQ", | |
ce93a370 MC |
201 | .dai_link = smartq_dai, |
202 | .num_links = ARRAY_SIZE(smartq_dai), | |
257fe593 MB |
203 | |
204 | .dapm_widgets = wm8987_dapm_widgets, | |
205 | .num_dapm_widgets = ARRAY_SIZE(wm8987_dapm_widgets), | |
206 | .dapm_routes = audio_map, | |
207 | .num_dapm_routes = ARRAY_SIZE(audio_map), | |
208 | .controls = wm8987_smartq_controls, | |
209 | .num_controls = ARRAY_SIZE(wm8987_smartq_controls), | |
ce93a370 MC |
210 | }; |
211 | ||
ce93a370 MC |
212 | static struct platform_device *smartq_snd_device; |
213 | ||
214 | static int __init smartq_init(void) | |
215 | { | |
216 | int ret; | |
217 | ||
218 | if (!machine_is_smartq7() && !machine_is_smartq5()) { | |
219 | pr_info("Only SmartQ is supported by this ASoC driver\n"); | |
220 | return -ENODEV; | |
221 | } | |
222 | ||
223 | smartq_snd_device = platform_device_alloc("soc-audio", -1); | |
224 | if (!smartq_snd_device) | |
225 | return -ENOMEM; | |
226 | ||
f0fba2ad | 227 | platform_set_drvdata(smartq_snd_device, &snd_soc_smartq); |
ce93a370 MC |
228 | |
229 | ret = platform_device_add(smartq_snd_device); | |
230 | if (ret) { | |
231 | platform_device_put(smartq_snd_device); | |
232 | return ret; | |
233 | } | |
234 | ||
235 | /* Initialise GPIOs used by amplifiers */ | |
236 | ret = gpio_request(S3C64XX_GPK(12), "amplifiers shutdown"); | |
237 | if (ret) { | |
238 | dev_err(&smartq_snd_device->dev, "Failed to register GPK12\n"); | |
239 | goto err_unregister_device; | |
240 | } | |
241 | ||
242 | /* Disable amplifiers */ | |
243 | ret = gpio_direction_output(S3C64XX_GPK(12), 1); | |
244 | if (ret) { | |
245 | dev_err(&smartq_snd_device->dev, "Failed to configure GPK12\n"); | |
246 | goto err_free_gpio_amp_shut; | |
247 | } | |
248 | ||
249 | return 0; | |
250 | ||
251 | err_free_gpio_amp_shut: | |
252 | gpio_free(S3C64XX_GPK(12)); | |
253 | err_unregister_device: | |
254 | platform_device_unregister(smartq_snd_device); | |
255 | ||
256 | return ret; | |
257 | } | |
258 | ||
259 | static void __exit smartq_exit(void) | |
260 | { | |
3790f205 | 261 | gpio_free(S3C64XX_GPK(12)); |
ce93a370 MC |
262 | snd_soc_jack_free_gpios(&smartq_jack, ARRAY_SIZE(smartq_jack_gpios), |
263 | smartq_jack_gpios); | |
264 | ||
265 | platform_device_unregister(smartq_snd_device); | |
266 | } | |
267 | ||
268 | module_init(smartq_init); | |
269 | module_exit(smartq_exit); | |
270 | ||
271 | /* Module information */ | |
272 | MODULE_AUTHOR("Maurus Cuelenaere <mcuelenaere@gmail.com>"); | |
273 | MODULE_DESCRIPTION("ALSA SoC SmartQ WM8987"); | |
274 | MODULE_LICENSE("GPL"); |