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16#include <linux/module.h>
17#include <linux/moduleparam.h>
18#include <linux/platform_device.h>
19#include <linux/i2c.h>
20#include <linux/gpio.h>
21
22#include <sound/soc.h>
23#include <sound/uda1380.h>
24#include <sound/jack.h>
25
26#include <plat/regs-iis.h>
27
28#include <mach/h1940-latch.h>
29
30#include <asm/mach-types.h>
31
32#include "dma.h"
33#include "s3c24xx-i2s.h"
34#include "../codecs/uda1380.h"
35
36static unsigned int rates[] = {
37 11025,
38 22050,
39 44100,
40};
41
42static struct snd_pcm_hw_constraint_list hw_rates = {
43 .count = ARRAY_SIZE(rates),
44 .list = rates,
45 .mask = 0,
46};
47
48static struct snd_soc_jack hp_jack;
49
50static struct snd_soc_jack_pin hp_jack_pins[] = {
51 {
52 .pin = "Headphone Jack",
53 .mask = SND_JACK_HEADPHONE,
54 },
55 {
56 .pin = "Speaker",
57 .mask = SND_JACK_HEADPHONE,
58 .invert = 1,
59 },
60};
61
62static struct snd_soc_jack_gpio hp_jack_gpios[] = {
63 {
64 .gpio = S3C2410_GPG(4),
65 .name = "hp-gpio",
66 .report = SND_JACK_HEADPHONE,
67 .invert = 1,
68 .debounce_time = 200,
69 },
70};
71
72static int h1940_startup(struct snd_pcm_substream *substream)
73{
74 struct snd_pcm_runtime *runtime = substream->runtime;
75
76 runtime->hw.rate_min = hw_rates.list[0];
77 runtime->hw.rate_max = hw_rates.list[hw_rates.count - 1];
78 runtime->hw.rates = SNDRV_PCM_RATE_KNOT;
79
80 return snd_pcm_hw_constraint_list(runtime, 0,
81 SNDRV_PCM_HW_PARAM_RATE,
82 &hw_rates);
83}
84
85static int h1940_hw_params(struct snd_pcm_substream *substream,
86 struct snd_pcm_hw_params *params)
87{
88 struct snd_soc_pcm_runtime *rtd = substream->private_data;
89 struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
90 struct snd_soc_dai *codec_dai = rtd->codec_dai;
91 int div;
92 int ret;
93 unsigned int rate = params_rate(params);
94
95 switch (rate) {
96 case 11025:
97 case 22050:
98 case 44100:
99 div = s3c24xx_i2s_get_clockrate() / (384 * rate);
100 if (s3c24xx_i2s_get_clockrate() % (384 * rate) > (192 * rate))
101 div++;
102 break;
103 default:
104 dev_err(&rtd->dev, "%s: rate %d is not supported\n",
105 __func__, rate);
106 return -EINVAL;
107 }
108
109
110 ret = snd_soc_dai_set_fmt(codec_dai, SND_SOC_DAIFMT_I2S |
111 SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBS_CFS);
112 if (ret < 0)
113 return ret;
114
115
116 ret = snd_soc_dai_set_fmt(cpu_dai, SND_SOC_DAIFMT_I2S |
117 SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBS_CFS);
118 if (ret < 0)
119 return ret;
120
121
122 ret = snd_soc_dai_set_sysclk(cpu_dai, S3C24XX_CLKSRC_PCLK, rate,
123 SND_SOC_CLOCK_OUT);
124 if (ret < 0)
125 return ret;
126
127
128 ret = snd_soc_dai_set_clkdiv(cpu_dai, S3C24XX_DIV_MCLK,
129 S3C2410_IISMOD_384FS);
130 if (ret < 0)
131 return ret;
132
133
134 ret = snd_soc_dai_set_clkdiv(cpu_dai, S3C24XX_DIV_BCLK,
135 S3C2410_IISMOD_32FS);
136 if (ret < 0)
137 return ret;
138
139
140 ret = snd_soc_dai_set_clkdiv(cpu_dai, S3C24XX_DIV_PRESCALER,
141 S3C24XX_PRESCALE(div, div));
142 if (ret < 0)
143 return ret;
144
145 return 0;
146}
147
148static struct snd_soc_ops h1940_ops = {
149 .startup = h1940_startup,
150 .hw_params = h1940_hw_params,
151};
152
153static int h1940_spk_power(struct snd_soc_dapm_widget *w,
154 struct snd_kcontrol *kcontrol, int event)
155{
156 if (SND_SOC_DAPM_EVENT_ON(event))
157 gpio_set_value(H1940_LATCH_AUDIO_POWER, 1);
158 else
159 gpio_set_value(H1940_LATCH_AUDIO_POWER, 0);
160
161 return 0;
162}
163
164
165static const struct snd_soc_dapm_widget uda1380_dapm_widgets[] = {
166 SND_SOC_DAPM_HP("Headphone Jack", NULL),
167 SND_SOC_DAPM_MIC("Mic Jack", NULL),
168 SND_SOC_DAPM_SPK("Speaker", h1940_spk_power),
169};
170
171
172static const struct snd_soc_dapm_route audio_map[] = {
173
174 {"Headphone Jack", NULL, "VOUTLHP"},
175 {"Headphone Jack", NULL, "VOUTRHP"},
176
177
178 {"Speaker", NULL, "VOUTL"},
179 {"Speaker", NULL, "VOUTR"},
180
181
182 {"VINM", NULL, "Mic Jack"},
183};
184
185static struct platform_device *s3c24xx_snd_device;
186
187static int h1940_uda1380_init(struct snd_soc_pcm_runtime *rtd)
188{
189 struct snd_soc_codec *codec = rtd->codec;
190 struct snd_soc_dapm_context *dapm = &codec->dapm;
191 int err;
192
193
194 err = snd_soc_dapm_new_controls(dapm, uda1380_dapm_widgets,
195 ARRAY_SIZE(uda1380_dapm_widgets));
196 if (err)
197 return err;
198
199
200 err = snd_soc_dapm_add_routes(dapm, audio_map,
201 ARRAY_SIZE(audio_map));
202 if (err)
203 return err;
204
205 snd_soc_dapm_enable_pin(dapm, "Headphone Jack");
206 snd_soc_dapm_enable_pin(dapm, "Speaker");
207 snd_soc_dapm_enable_pin(dapm, "Mic Jack");
208
209 snd_soc_dapm_sync(dapm);
210
211 snd_soc_jack_new(codec, "Headphone Jack", SND_JACK_HEADPHONE,
212 &hp_jack);
213
214 snd_soc_jack_add_pins(&hp_jack, ARRAY_SIZE(hp_jack_pins),
215 hp_jack_pins);
216
217 snd_soc_jack_add_gpios(&hp_jack, ARRAY_SIZE(hp_jack_gpios),
218 hp_jack_gpios);
219
220 return 0;
221}
222
223
224static struct snd_soc_dai_link h1940_uda1380_dai[] = {
225 {
226 .name = "uda1380",
227 .stream_name = "UDA1380 Duplex",
228 .cpu_dai_name = "s3c24xx-iis",
229 .codec_dai_name = "uda1380-hifi",
230 .init = h1940_uda1380_init,
231 .platform_name = "samsung-audio",
232 .codec_name = "uda1380-codec.0-001a",
233 .ops = &h1940_ops,
234 },
235};
236
237static struct snd_soc_card h1940_asoc = {
238 .name = "h1940",
239 .dai_link = h1940_uda1380_dai,
240 .num_links = ARRAY_SIZE(h1940_uda1380_dai),
241};
242
243static int __init h1940_init(void)
244{
245 int ret;
246
247 if (!machine_is_h1940())
248 return -ENODEV;
249
250
251 ret = gpio_request(H1940_LATCH_AUDIO_POWER, "speaker-power");
252 if (ret)
253 goto err_out;
254
255 ret = gpio_direction_output(H1940_LATCH_AUDIO_POWER, 0);
256 if (ret)
257 goto err_gpio;
258
259 s3c24xx_snd_device = platform_device_alloc("soc-audio", -1);
260 if (!s3c24xx_snd_device) {
261 ret = -ENOMEM;
262 goto err_gpio;
263 }
264
265 platform_set_drvdata(s3c24xx_snd_device, &h1940_asoc);
266 ret = platform_device_add(s3c24xx_snd_device);
267
268 if (ret)
269 goto err_plat;
270
271 return 0;
272
273err_plat:
274 platform_device_put(s3c24xx_snd_device);
275err_gpio:
276 gpio_free(H1940_LATCH_AUDIO_POWER);
277
278err_out:
279 return ret;
280}
281
282static void __exit h1940_exit(void)
283{
284 platform_device_unregister(s3c24xx_snd_device);
285 snd_soc_jack_free_gpios(&hp_jack, ARRAY_SIZE(hp_jack_gpios),
286 hp_jack_gpios);
287 gpio_free(H1940_LATCH_AUDIO_POWER);
288}
289
290module_init(h1940_init);
291module_exit(h1940_exit);
292
293
294MODULE_AUTHOR("Arnaud Patard, Vasily Khoruzhick");
295MODULE_DESCRIPTION("ALSA SoC H1940");
296MODULE_LICENSE("GPL");
297
