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20#include <linux/types.h>
21#include <linux/gpio.h>
22#include <linux/module.h>
23
24#include <sound/soc.h>
25#include <sound/jack.h>
26
27#include <mach/gpio-samsung.h>
28#include "regs-iis.h"
29#include <asm/mach-types.h>
30
31#include "s3c24xx-i2s.h"
32
33static int rx1950_uda1380_init(struct snd_soc_pcm_runtime *rtd);
34static int rx1950_uda1380_card_remove(struct snd_soc_card *card);
35static int rx1950_startup(struct snd_pcm_substream *substream);
36static int rx1950_hw_params(struct snd_pcm_substream *substream,
37 struct snd_pcm_hw_params *params);
38static int rx1950_spk_power(struct snd_soc_dapm_widget *w,
39 struct snd_kcontrol *kcontrol, int event);
40
41static const unsigned int rates[] = {
42 16000,
43 44100,
44 48000,
45};
46
47static const struct snd_pcm_hw_constraint_list hw_rates = {
48 .count = ARRAY_SIZE(rates),
49 .list = rates,
50};
51
52static struct snd_soc_jack hp_jack;
53
54static struct snd_soc_jack_pin hp_jack_pins[] = {
55 {
56 .pin = "Headphone Jack",
57 .mask = SND_JACK_HEADPHONE,
58 },
59 {
60 .pin = "Speaker",
61 .mask = SND_JACK_HEADPHONE,
62 .invert = 1,
63 },
64};
65
66static struct snd_soc_jack_gpio hp_jack_gpios[] = {
67 [0] = {
68 .gpio = S3C2410_GPG(12),
69 .name = "hp-gpio",
70 .report = SND_JACK_HEADPHONE,
71 .invert = 1,
72 .debounce_time = 200,
73 },
74};
75
76static struct snd_soc_ops rx1950_ops = {
77 .startup = rx1950_startup,
78 .hw_params = rx1950_hw_params,
79};
80
81
82static struct snd_soc_dai_link rx1950_uda1380_dai[] = {
83 {
84 .name = "uda1380",
85 .stream_name = "UDA1380 Duplex",
86 .cpu_dai_name = "s3c24xx-iis",
87 .codec_dai_name = "uda1380-hifi",
88 .init = rx1950_uda1380_init,
89 .platform_name = "s3c24xx-iis",
90 .codec_name = "uda1380-codec.0-001a",
91 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
92 SND_SOC_DAIFMT_CBS_CFS,
93 .ops = &rx1950_ops,
94 },
95};
96
97
98static const struct snd_soc_dapm_widget uda1380_dapm_widgets[] = {
99 SND_SOC_DAPM_HP("Headphone Jack", NULL),
100 SND_SOC_DAPM_MIC("Mic Jack", NULL),
101 SND_SOC_DAPM_SPK("Speaker", rx1950_spk_power),
102};
103
104
105static const struct snd_soc_dapm_route audio_map[] = {
106
107 {"Headphone Jack", NULL, "VOUTLHP"},
108 {"Headphone Jack", NULL, "VOUTRHP"},
109
110
111 {"Speaker", NULL, "VOUTL"},
112 {"Speaker", NULL, "VOUTR"},
113
114
115 {"VINM", NULL, "Mic Jack"},
116};
117
118static struct snd_soc_card rx1950_asoc = {
119 .name = "rx1950",
120 .owner = THIS_MODULE,
121 .remove = rx1950_uda1380_card_remove,
122 .dai_link = rx1950_uda1380_dai,
123 .num_links = ARRAY_SIZE(rx1950_uda1380_dai),
124
125 .dapm_widgets = uda1380_dapm_widgets,
126 .num_dapm_widgets = ARRAY_SIZE(uda1380_dapm_widgets),
127 .dapm_routes = audio_map,
128 .num_dapm_routes = ARRAY_SIZE(audio_map),
129};
130
131static struct platform_device *s3c24xx_snd_device;
132
133static int rx1950_startup(struct snd_pcm_substream *substream)
134{
135 struct snd_pcm_runtime *runtime = substream->runtime;
136
137 return snd_pcm_hw_constraint_list(runtime, 0,
138 SNDRV_PCM_HW_PARAM_RATE,
139 &hw_rates);
140}
141
142static int rx1950_spk_power(struct snd_soc_dapm_widget *w,
143 struct snd_kcontrol *kcontrol, int event)
144{
145 if (SND_SOC_DAPM_EVENT_ON(event))
146 gpio_set_value(S3C2410_GPA(1), 1);
147 else
148 gpio_set_value(S3C2410_GPA(1), 0);
149
150 return 0;
151}
152
153static int rx1950_hw_params(struct snd_pcm_substream *substream,
154 struct snd_pcm_hw_params *params)
155{
156 struct snd_soc_pcm_runtime *rtd = substream->private_data;
157 struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
158 int div;
159 int ret;
160 unsigned int rate = params_rate(params);
161 int clk_source, fs_mode;
162
163 switch (rate) {
164 case 16000:
165 case 48000:
166 clk_source = S3C24XX_CLKSRC_PCLK;
167 fs_mode = S3C2410_IISMOD_256FS;
168 div = s3c24xx_i2s_get_clockrate() / (256 * rate);
169 if (s3c24xx_i2s_get_clockrate() % (256 * rate) > (128 * rate))
170 div++;
171 break;
172 case 44100:
173 case 88200:
174 clk_source = S3C24XX_CLKSRC_MPLL;
175 fs_mode = S3C2410_IISMOD_384FS;
176 div = 1;
177 break;
178 default:
179 printk(KERN_ERR "%s: rate %d is not supported\n",
180 __func__, rate);
181 return -EINVAL;
182 }
183
184
185 ret = snd_soc_dai_set_sysclk(cpu_dai, clk_source, rate,
186 SND_SOC_CLOCK_OUT);
187 if (ret < 0)
188 return ret;
189
190
191 ret = snd_soc_dai_set_clkdiv(cpu_dai, S3C24XX_DIV_MCLK,
192 fs_mode);
193 if (ret < 0)
194 return ret;
195
196
197 ret = snd_soc_dai_set_clkdiv(cpu_dai, S3C24XX_DIV_BCLK,
198 S3C2410_IISMOD_32FS);
199 if (ret < 0)
200 return ret;
201
202
203 ret = snd_soc_dai_set_clkdiv(cpu_dai, S3C24XX_DIV_PRESCALER,
204 S3C24XX_PRESCALE(div, div));
205 if (ret < 0)
206 return ret;
207
208 return 0;
209}
210
211static int rx1950_uda1380_init(struct snd_soc_pcm_runtime *rtd)
212{
213 snd_soc_card_jack_new(rtd->card, "Headphone Jack", SND_JACK_HEADPHONE,
214 &hp_jack, hp_jack_pins, ARRAY_SIZE(hp_jack_pins));
215
216 snd_soc_jack_add_gpios(&hp_jack, ARRAY_SIZE(hp_jack_gpios),
217 hp_jack_gpios);
218
219 return 0;
220}
221
222static int rx1950_uda1380_card_remove(struct snd_soc_card *card)
223{
224 snd_soc_jack_free_gpios(&hp_jack, ARRAY_SIZE(hp_jack_gpios),
225 hp_jack_gpios);
226
227 return 0;
228}
229
230static int __init rx1950_init(void)
231{
232 int ret;
233
234 if (!machine_is_rx1950())
235 return -ENODEV;
236
237
238 ret = gpio_request(S3C2410_GPA(1), "speaker-power");
239 if (ret)
240 goto err_gpio;
241
242 ret = gpio_direction_output(S3C2410_GPA(1), 0);
243 if (ret)
244 goto err_gpio_conf;
245
246 s3c24xx_snd_device = platform_device_alloc("soc-audio", -1);
247 if (!s3c24xx_snd_device) {
248 ret = -ENOMEM;
249 goto err_plat_alloc;
250 }
251
252 platform_set_drvdata(s3c24xx_snd_device, &rx1950_asoc);
253 ret = platform_device_add(s3c24xx_snd_device);
254
255 if (ret) {
256 platform_device_put(s3c24xx_snd_device);
257 goto err_plat_add;
258 }
259
260 return 0;
261
262err_plat_add:
263err_plat_alloc:
264err_gpio_conf:
265 gpio_free(S3C2410_GPA(1));
266
267err_gpio:
268 return ret;
269}
270
271static void __exit rx1950_exit(void)
272{
273 platform_device_unregister(s3c24xx_snd_device);
274 gpio_free(S3C2410_GPA(1));
275}
276
277module_init(rx1950_init);
278module_exit(rx1950_exit);
279
280
281MODULE_AUTHOR("Vasily Khoruzhick");
282MODULE_DESCRIPTION("ALSA SoC RX1950");
283MODULE_LICENSE("GPL");
284
