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16#include <linux/gpio.h>
17#include <linux/module.h>
18
19#include <sound/soc.h>
20#include <sound/jack.h>
21
22#include <asm/mach-types.h>
23
24#include "i2s.h"
25#include "../codecs/wm8750.h"
26
27
28
29
30
31static struct snd_soc_card snd_soc_smartq;
32
33static 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;
37 struct snd_soc_dai *codec_dai = rtd->codec_dai;
38 struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
39 unsigned int clk = 0;
40 int ret;
41
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
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
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
72
73 ret = snd_soc_dai_set_sysclk(cpu_dai, SAMSUNG_I2S_RCLKSRC_0,
74 0, SND_SOC_CLOCK_IN);
75 if (ret < 0)
76 return ret;
77
78
79 ret = snd_soc_dai_set_sysclk(cpu_dai, SAMSUNG_I2S_CDCLK,
80 0, SND_SOC_CLOCK_IN);
81 if (ret < 0)
82 return ret;
83
84
85 ret = snd_soc_dai_set_sysclk(codec_dai, WM8750_SYSCLK, clk,
86 SND_SOC_CLOCK_IN);
87 if (ret < 0)
88 return ret;
89
90 return 0;
91}
92
93
94
95
96static struct snd_soc_ops smartq_hifi_ops = {
97 .hw_params = smartq_hifi_hw_params,
98};
99
100static struct snd_soc_jack smartq_jack;
101
102static struct snd_soc_jack_pin smartq_jack_pins[] = {
103
104 {
105 .pin = "Internal Speaker",
106 .mask = SND_JACK_HEADPHONE,
107 },
108};
109
110static 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
119static 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
125static 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
134static 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
140static 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
151static int smartq_wm8987_init(struct snd_soc_pcm_runtime *rtd)
152{
153 struct snd_soc_codec *codec = rtd->codec;
154 struct snd_soc_dapm_context *dapm = &codec->dapm;
155 int err = 0;
156
157
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");
162
163
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");
167
168
169 err = snd_soc_jack_new(codec, "Headphone Jack",
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
186static struct snd_soc_dai_link smartq_dai[] = {
187 {
188 .name = "wm8987",
189 .stream_name = "SmartQ Hi-Fi",
190 .cpu_dai_name = "samsung-i2s.0",
191 .codec_dai_name = "wm8750-hifi",
192 .platform_name = "samsung-i2s.0",
193 .codec_name = "wm8750.0-0x1a",
194 .init = smartq_wm8987_init,
195 .ops = &smartq_hifi_ops,
196 },
197};
198
199static struct snd_soc_card snd_soc_smartq = {
200 .name = "SmartQ",
201 .owner = THIS_MODULE,
202 .dai_link = smartq_dai,
203 .num_links = ARRAY_SIZE(smartq_dai),
204
205 .dapm_widgets = wm8987_dapm_widgets,
206 .num_dapm_widgets = ARRAY_SIZE(wm8987_dapm_widgets),
207 .dapm_routes = audio_map,
208 .num_dapm_routes = ARRAY_SIZE(audio_map),
209 .controls = wm8987_smartq_controls,
210 .num_controls = ARRAY_SIZE(wm8987_smartq_controls),
211};
212
213static struct platform_device *smartq_snd_device;
214
215static int __init smartq_init(void)
216{
217 int ret;
218
219 if (!machine_is_smartq7() && !machine_is_smartq5()) {
220 pr_info("Only SmartQ is supported by this ASoC driver\n");
221 return -ENODEV;
222 }
223
224 smartq_snd_device = platform_device_alloc("soc-audio", -1);
225 if (!smartq_snd_device)
226 return -ENOMEM;
227
228 platform_set_drvdata(smartq_snd_device, &snd_soc_smartq);
229
230 ret = platform_device_add(smartq_snd_device);
231 if (ret) {
232 platform_device_put(smartq_snd_device);
233 return ret;
234 }
235
236
237 ret = gpio_request(S3C64XX_GPK(12), "amplifiers shutdown");
238 if (ret) {
239 dev_err(&smartq_snd_device->dev, "Failed to register GPK12\n");
240 goto err_unregister_device;
241 }
242
243
244 ret = gpio_direction_output(S3C64XX_GPK(12), 1);
245 if (ret) {
246 dev_err(&smartq_snd_device->dev, "Failed to configure GPK12\n");
247 goto err_free_gpio_amp_shut;
248 }
249
250 return 0;
251
252err_free_gpio_amp_shut:
253 gpio_free(S3C64XX_GPK(12));
254err_unregister_device:
255 platform_device_unregister(smartq_snd_device);
256
257 return ret;
258}
259
260static void __exit smartq_exit(void)
261{
262 gpio_free(S3C64XX_GPK(12));
263 snd_soc_jack_free_gpios(&smartq_jack, ARRAY_SIZE(smartq_jack_gpios),
264 smartq_jack_gpios);
265
266 platform_device_unregister(smartq_snd_device);
267}
268
269module_init(smartq_init);
270module_exit(smartq_exit);
271
272
273MODULE_AUTHOR("Maurus Cuelenaere <mcuelenaere@gmail.com>");
274MODULE_DESCRIPTION("ALSA SoC SmartQ WM8987");
275MODULE_LICENSE("GPL");
276
