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Diffstat (limited to 'sound/soc/s3c24xx/smartq_wm8987.c')
-rw-r--r--sound/soc/s3c24xx/smartq_wm8987.c288
1 files changed, 0 insertions, 288 deletions
diff --git a/sound/soc/s3c24xx/smartq_wm8987.c b/sound/soc/s3c24xx/smartq_wm8987.c
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--- a/sound/soc/s3c24xx/smartq_wm8987.c
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1/* sound/soc/s3c24xx/smartq_wm8987.c
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
16#include <linux/module.h>
17#include <linux/platform_device.h>
18#include <linux/gpio.h>
19
20#include <sound/pcm.h>
21#include <sound/pcm_params.h>
22#include <sound/soc.h>
23#include <sound/jack.h>
24
25#include <asm/mach-types.h>
26
27#include "dma.h"
28#include "i2s.h"
29
30#include "../codecs/wm8750.h"
31
32/*
33 * WM8987 is register compatible with WM8750, so using that as base driver.
34 */
35
36static struct snd_soc_card snd_soc_smartq;
37
38static int smartq_hifi_hw_params(struct snd_pcm_substream *substream,
39 struct snd_pcm_hw_params *params)
40{
41 struct snd_soc_pcm_runtime *rtd = substream->private_data;
42 struct snd_soc_dai *codec_dai = rtd->dai->codec_dai;
43 struct snd_soc_dai *cpu_dai = rtd->dai->cpu_dai;
44 unsigned int clk = 0;
45 int ret;
46
47 switch (params_rate(params)) {
48 case 8000:
49 case 16000:
50 case 32000:
51 case 48000:
52 case 96000:
53 clk = 12288000;
54 break;
55 case 11025:
56 case 22050:
57 case 44100:
58 case 88200:
59 clk = 11289600;
60 break;
61 }
62
63 /* set codec DAI configuration */
64 ret = snd_soc_dai_set_fmt(codec_dai, SND_SOC_DAIFMT_I2S |
65 SND_SOC_DAIFMT_NB_NF |
66 SND_SOC_DAIFMT_CBS_CFS);
67 if (ret < 0)
68 return ret;
69
70 /* set cpu DAI configuration */
71 ret = snd_soc_dai_set_fmt(cpu_dai, SND_SOC_DAIFMT_I2S |
72 SND_SOC_DAIFMT_NB_NF |
73 SND_SOC_DAIFMT_CBS_CFS);
74 if (ret < 0)
75 return ret;
76
77 /* Use PCLK for I2S signal generation */
78 ret = snd_soc_dai_set_sysclk(cpu_dai, SAMSUNG_I2S_RCLKSRC_0,
79 0, SND_SOC_CLOCK_IN);
80 if (ret < 0)
81 return ret;
82
83 /* Gate the RCLK output on PAD */
84 ret = snd_soc_dai_set_sysclk(cpu_dai, SAMSUNG_I2S_CDCLK,
85 0, SND_SOC_CLOCK_IN);
86 if (ret < 0)
87 return ret;
88
89 /* set the codec system clock for DAC and ADC */
90 ret = snd_soc_dai_set_sysclk(codec_dai, WM8750_SYSCLK, clk,
91 SND_SOC_CLOCK_IN);
92 if (ret < 0)
93 return ret;
94
95 return 0;
96}
97
98/*
99 * SmartQ WM8987 HiFi DAI operations.
100 */
101static struct snd_soc_ops smartq_hifi_ops = {
102 .hw_params = smartq_hifi_hw_params,
103};
104
105static struct snd_soc_jack smartq_jack;
106
107static struct snd_soc_jack_pin smartq_jack_pins[] = {
108 /* Disable speaker when headphone is plugged in */
109 {
110 .pin = "Internal Speaker",
111 .mask = SND_JACK_HEADPHONE,
112 },
113};
114
115static struct snd_soc_jack_gpio smartq_jack_gpios[] = {
116 {
117 .gpio = S3C64XX_GPL(12),
118 .name = "headphone detect",
119 .report = SND_JACK_HEADPHONE,
120 .debounce_time = 200,
121 },
122};
123
124static const struct snd_kcontrol_new wm8987_smartq_controls[] = {
125 SOC_DAPM_PIN_SWITCH("Internal Speaker"),
126 SOC_DAPM_PIN_SWITCH("Headphone Jack"),
127 SOC_DAPM_PIN_SWITCH("Internal Mic"),
128};
129
130static int smartq_speaker_event(struct snd_soc_dapm_widget *w,
131 struct snd_kcontrol *k,
132 int event)
133{
134 gpio_set_value(S3C64XX_GPK(12), SND_SOC_DAPM_EVENT_OFF(event));
135
136 return 0;
137}
138
139static const struct snd_soc_dapm_widget wm8987_dapm_widgets[] = {
140 SND_SOC_DAPM_SPK("Internal Speaker", smartq_speaker_event),
141 SND_SOC_DAPM_HP("Headphone Jack", NULL),
142 SND_SOC_DAPM_MIC("Internal Mic", NULL),
143};
144
145static const struct snd_soc_dapm_route audio_map[] = {
146 {"Headphone Jack", NULL, "LOUT2"},
147 {"Headphone Jack", NULL, "ROUT2"},
148
149 {"Internal Speaker", NULL, "LOUT2"},
150 {"Internal Speaker", NULL, "ROUT2"},
151
152 {"Mic Bias", NULL, "Internal Mic"},
153 {"LINPUT2", NULL, "Mic Bias"},
154};
155
156static int smartq_wm8987_init(struct snd_soc_codec *codec)
157{
158 struct snd_soc_dapm_context *dapm = &codec->dapm;
159 int err = 0;
160
161 /* Add SmartQ specific widgets */
162 snd_soc_dapm_new_controls(dapm, wm8987_dapm_widgets,
163 ARRAY_SIZE(wm8987_dapm_widgets));
164
165 /* add SmartQ specific controls */
166 err = snd_soc_add_controls(codec, wm8987_smartq_controls,
167 ARRAY_SIZE(wm8987_smartq_controls));
168
169 if (err < 0)
170 return err;
171
172 /* setup SmartQ specific audio path */
173 snd_soc_dapm_add_routes(dapm, audio_map, ARRAY_SIZE(audio_map));
174
175 /* set endpoints to not connected */
176 snd_soc_dapm_nc_pin(dapm, "LINPUT1");
177 snd_soc_dapm_nc_pin(dapm, "RINPUT1");
178 snd_soc_dapm_nc_pin(dapm, "OUT3");
179 snd_soc_dapm_nc_pin(dapm, "ROUT1");
180
181 /* set endpoints to default off mode */
182 snd_soc_dapm_enable_pin(dapm, "Internal Speaker");
183 snd_soc_dapm_enable_pin(dapm, "Internal Mic");
184 snd_soc_dapm_disable_pin(dapm, "Headphone Jack");
185
186 err = snd_soc_dapm_sync(dapm);
187 if (err)
188 return err;
189
190 /* Headphone jack detection */
191 err = snd_soc_jack_new(&snd_soc_smartq, "Headphone Jack",
192 SND_JACK_HEADPHONE, &smartq_jack);
193 if (err)
194 return err;
195
196 err = snd_soc_jack_add_pins(&smartq_jack, ARRAY_SIZE(smartq_jack_pins),
197 smartq_jack_pins);
198 if (err)
199 return err;
200
201 err = snd_soc_jack_add_gpios(&smartq_jack,
202 ARRAY_SIZE(smartq_jack_gpios),
203 smartq_jack_gpios);
204
205 return err;
206}
207
208static struct snd_soc_dai_link smartq_dai[] = {
209 {
210 .name = "wm8987",
211 .stream_name = "SmartQ Hi-Fi",
212 .cpu_dai_name = "samsung-i2s.0",
213 .codec_dai_name = "wm8750-hifi",
214 .platform_name = "samsung-audio",
215 .codec_name = "wm8750-codec.0-0x1a",
216 .init = smartq_wm8987_init,
217 .ops = &smartq_hifi_ops,
218 },
219};
220
221static struct snd_soc_card snd_soc_smartq = {
222 .name = "SmartQ",
223 .dai_link = smartq_dai,
224 .num_links = ARRAY_SIZE(smartq_dai),
225};
226
227static struct platform_device *smartq_snd_device;
228
229static int __init smartq_init(void)
230{
231 int ret;
232
233 if (!machine_is_smartq7() && !machine_is_smartq5()) {
234 pr_info("Only SmartQ is supported by this ASoC driver\n");
235 return -ENODEV;
236 }
237
238 smartq_snd_device = platform_device_alloc("soc-audio", -1);
239 if (!smartq_snd_device)
240 return -ENOMEM;
241
242 platform_set_drvdata(smartq_snd_device, &snd_soc_smartq);
243
244 ret = platform_device_add(smartq_snd_device);
245 if (ret) {
246 platform_device_put(smartq_snd_device);
247 return ret;
248 }
249
250 /* Initialise GPIOs used by amplifiers */
251 ret = gpio_request(S3C64XX_GPK(12), "amplifiers shutdown");
252 if (ret) {
253 dev_err(&smartq_snd_device->dev, "Failed to register GPK12\n");
254 goto err_unregister_device;
255 }
256
257 /* Disable amplifiers */
258 ret = gpio_direction_output(S3C64XX_GPK(12), 1);
259 if (ret) {
260 dev_err(&smartq_snd_device->dev, "Failed to configure GPK12\n");
261 goto err_free_gpio_amp_shut;
262 }
263
264 return 0;
265
266err_free_gpio_amp_shut:
267 gpio_free(S3C64XX_GPK(12));
268err_unregister_device:
269 platform_device_unregister(smartq_snd_device);
270
271 return ret;
272}
273
274static void __exit smartq_exit(void)
275{
276 snd_soc_jack_free_gpios(&smartq_jack, ARRAY_SIZE(smartq_jack_gpios),
277 smartq_jack_gpios);
278
279 platform_device_unregister(smartq_snd_device);
280}
281
282module_init(smartq_init);
283module_exit(smartq_exit);
284
285/* Module information */
286MODULE_AUTHOR("Maurus Cuelenaere <mcuelenaere@gmail.com>");
287MODULE_DESCRIPTION("ALSA SoC SmartQ WM8987");
288MODULE_LICENSE("GPL");
generated by cgit v1.2.2 (git 2.25.0) at 2025-02-28 07:32:29 -0500