ASoC: SAMSUNG: Add I2S0 internal dma driver
[deliverable/linux.git] / sound / soc / omap / n810.c
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1/*
2 * n810.c -- SoC audio for Nokia N810
3 *
4 * Copyright (C) 2008 Nokia Corporation
5 *
b08f7a62 6 * Contact: Jarkko Nikula <jhnikula@gmail.com>
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7 *
8 * This program is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU General Public License
10 * version 2 as published by the Free Software Foundation.
11 *
12 * This program is distributed in the hope that it will be useful, but
13 * WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
20 * 02110-1301 USA
21 *
22 */
23
24#include <linux/clk.h>
aa6b904e 25#include <linux/i2c.h>
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26#include <linux/platform_device.h>
27#include <sound/core.h>
28#include <sound/pcm.h>
29#include <sound/soc.h>
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30
31#include <asm/mach-types.h>
a09e64fb 32#include <mach/hardware.h>
f99a633a 33#include <linux/gpio.h>
ce491cf8 34#include <plat/mcbsp.h>
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35
36#include "omap-mcbsp.h"
37#include "omap-pcm.h"
2e74796a 38
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39#define N810_HEADSET_AMP_GPIO 10
40#define N810_SPEAKER_AMP_GPIO 101
2e74796a 41
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42enum {
43 N810_JACK_DISABLED,
44 N810_JACK_HP,
45 N810_JACK_HS,
46 N810_JACK_MIC,
47};
48
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49static struct clk *sys_clkout2;
50static struct clk *sys_clkout2_src;
51static struct clk *func96m_clk;
52
53static int n810_spk_func;
54static int n810_jack_func;
90b9e476 55static int n810_dmic_func;
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56
57static void n810_ext_control(struct snd_soc_codec *codec)
58{
ce6120cc 59 struct snd_soc_dapm_context *dapm = &codec->dapm;
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60 int hp = 0, line1l = 0;
61
62 switch (n810_jack_func) {
63 case N810_JACK_HS:
64 line1l = 1;
65 case N810_JACK_HP:
66 hp = 1;
67 break;
68 case N810_JACK_MIC:
69 line1l = 1;
70 break;
71 }
72
a5302181 73 if (n810_spk_func)
ce6120cc 74 snd_soc_dapm_enable_pin(dapm, "Ext Spk");
a5302181 75 else
ce6120cc 76 snd_soc_dapm_disable_pin(dapm, "Ext Spk");
a5302181 77
f8d5fc92 78 if (hp)
ce6120cc 79 snd_soc_dapm_enable_pin(dapm, "Headphone Jack");
a5302181 80 else
ce6120cc 81 snd_soc_dapm_disable_pin(dapm, "Headphone Jack");
f8d5fc92 82 if (line1l)
ce6120cc 83 snd_soc_dapm_enable_pin(dapm, "LINE1L");
f8d5fc92 84 else
ce6120cc 85 snd_soc_dapm_disable_pin(dapm, "LINE1L");
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86
87 if (n810_dmic_func)
ce6120cc 88 snd_soc_dapm_enable_pin(dapm, "DMic");
a5302181 89 else
ce6120cc 90 snd_soc_dapm_disable_pin(dapm, "DMic");
2e74796a 91
ce6120cc 92 snd_soc_dapm_sync(dapm);
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93}
94
95static int n810_startup(struct snd_pcm_substream *substream)
96{
0be43050 97 struct snd_pcm_runtime *runtime = substream->runtime;
2e74796a 98 struct snd_soc_pcm_runtime *rtd = substream->private_data;
f0fba2ad 99 struct snd_soc_codec *codec = rtd->codec;
2e74796a 100
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101 snd_pcm_hw_constraint_minmax(runtime,
102 SNDRV_PCM_HW_PARAM_CHANNELS, 2, 2);
103
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104 n810_ext_control(codec);
105 return clk_enable(sys_clkout2);
106}
107
108static void n810_shutdown(struct snd_pcm_substream *substream)
109{
110 clk_disable(sys_clkout2);
111}
112
113static int n810_hw_params(struct snd_pcm_substream *substream,
114 struct snd_pcm_hw_params *params)
115{
116 struct snd_soc_pcm_runtime *rtd = substream->private_data;
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117 struct snd_soc_dai *codec_dai = rtd->codec_dai;
118 struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
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119 int err;
120
121 /* Set codec DAI configuration */
64105cfd 122 err = snd_soc_dai_set_fmt(codec_dai,
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123 SND_SOC_DAIFMT_I2S |
124 SND_SOC_DAIFMT_NB_NF |
125 SND_SOC_DAIFMT_CBM_CFM);
126 if (err < 0)
127 return err;
128
129 /* Set cpu DAI configuration */
64105cfd 130 err = snd_soc_dai_set_fmt(cpu_dai,
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131 SND_SOC_DAIFMT_I2S |
132 SND_SOC_DAIFMT_NB_NF |
133 SND_SOC_DAIFMT_CBM_CFM);
134 if (err < 0)
135 return err;
136
137 /* Set the codec system clock for DAC and ADC */
64105cfd 138 err = snd_soc_dai_set_sysclk(codec_dai, 0, 12000000,
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139 SND_SOC_CLOCK_IN);
140
141 return err;
142}
143
144static struct snd_soc_ops n810_ops = {
145 .startup = n810_startup,
146 .hw_params = n810_hw_params,
147 .shutdown = n810_shutdown,
148};
149
150static int n810_get_spk(struct snd_kcontrol *kcontrol,
151 struct snd_ctl_elem_value *ucontrol)
152{
153 ucontrol->value.integer.value[0] = n810_spk_func;
154
155 return 0;
156}
157
158static int n810_set_spk(struct snd_kcontrol *kcontrol,
159 struct snd_ctl_elem_value *ucontrol)
160{
161 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
162
163 if (n810_spk_func == ucontrol->value.integer.value[0])
164 return 0;
165
166 n810_spk_func = ucontrol->value.integer.value[0];
167 n810_ext_control(codec);
168
169 return 1;
170}
171
172static int n810_get_jack(struct snd_kcontrol *kcontrol,
173 struct snd_ctl_elem_value *ucontrol)
174{
175 ucontrol->value.integer.value[0] = n810_jack_func;
176
177 return 0;
178}
179
180static int n810_set_jack(struct snd_kcontrol *kcontrol,
181 struct snd_ctl_elem_value *ucontrol)
182{
183 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
184
185 if (n810_jack_func == ucontrol->value.integer.value[0])
186 return 0;
187
188 n810_jack_func = ucontrol->value.integer.value[0];
189 n810_ext_control(codec);
190
191 return 1;
192}
193
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194static int n810_get_input(struct snd_kcontrol *kcontrol,
195 struct snd_ctl_elem_value *ucontrol)
196{
197 ucontrol->value.integer.value[0] = n810_dmic_func;
198
199 return 0;
200}
201
202static int n810_set_input(struct snd_kcontrol *kcontrol,
203 struct snd_ctl_elem_value *ucontrol)
204{
205 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
206
207 if (n810_dmic_func == ucontrol->value.integer.value[0])
208 return 0;
209
210 n810_dmic_func = ucontrol->value.integer.value[0];
211 n810_ext_control(codec);
212
213 return 1;
214}
215
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216static int n810_spk_event(struct snd_soc_dapm_widget *w,
217 struct snd_kcontrol *k, int event)
218{
219 if (SND_SOC_DAPM_EVENT_ON(event))
f99a633a 220 gpio_set_value(N810_SPEAKER_AMP_GPIO, 1);
2e74796a 221 else
f99a633a 222 gpio_set_value(N810_SPEAKER_AMP_GPIO, 0);
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223
224 return 0;
225}
226
227static int n810_jack_event(struct snd_soc_dapm_widget *w,
228 struct snd_kcontrol *k, int event)
229{
230 if (SND_SOC_DAPM_EVENT_ON(event))
f99a633a 231 gpio_set_value(N810_HEADSET_AMP_GPIO, 1);
2e74796a 232 else
f99a633a 233 gpio_set_value(N810_HEADSET_AMP_GPIO, 0);
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234
235 return 0;
236}
237
238static const struct snd_soc_dapm_widget aic33_dapm_widgets[] = {
239 SND_SOC_DAPM_SPK("Ext Spk", n810_spk_event),
240 SND_SOC_DAPM_HP("Headphone Jack", n810_jack_event),
90b9e476 241 SND_SOC_DAPM_MIC("DMic", NULL),
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242};
243
1a250598 244static const struct snd_soc_dapm_route audio_map[] = {
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245 {"Headphone Jack", NULL, "HPLOUT"},
246 {"Headphone Jack", NULL, "HPROUT"},
247
248 {"Ext Spk", NULL, "LLOUT"},
249 {"Ext Spk", NULL, "RLOUT"},
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250
251 {"DMic Rate 64", NULL, "Mic Bias 2V"},
252 {"Mic Bias 2V", NULL, "DMic"},
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253};
254
255static const char *spk_function[] = {"Off", "On"};
f8d5fc92 256static const char *jack_function[] = {"Off", "Headphone", "Headset", "Mic"};
90b9e476 257static const char *input_function[] = {"ADC", "Digital Mic"};
2e74796a 258static const struct soc_enum n810_enum[] = {
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259 SOC_ENUM_SINGLE_EXT(ARRAY_SIZE(spk_function), spk_function),
260 SOC_ENUM_SINGLE_EXT(ARRAY_SIZE(jack_function), jack_function),
90b9e476 261 SOC_ENUM_SINGLE_EXT(ARRAY_SIZE(input_function), input_function),
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262};
263
264static const struct snd_kcontrol_new aic33_n810_controls[] = {
265 SOC_ENUM_EXT("Speaker Function", n810_enum[0],
266 n810_get_spk, n810_set_spk),
267 SOC_ENUM_EXT("Jack Function", n810_enum[1],
268 n810_get_jack, n810_set_jack),
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269 SOC_ENUM_EXT("Input Select", n810_enum[2],
270 n810_get_input, n810_set_input),
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271};
272
f0fba2ad 273static int n810_aic33_init(struct snd_soc_pcm_runtime *rtd)
2e74796a 274{
f0fba2ad 275 struct snd_soc_codec *codec = rtd->codec;
ce6120cc 276 struct snd_soc_dapm_context *dapm = &codec->dapm;
eb5f6d75 277 int err;
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278
279 /* Not connected */
ce6120cc
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280 snd_soc_dapm_nc_pin(dapm, "MONO_LOUT");
281 snd_soc_dapm_nc_pin(dapm, "HPLCOM");
282 snd_soc_dapm_nc_pin(dapm, "HPRCOM");
283 snd_soc_dapm_nc_pin(dapm, "MIC3L");
284 snd_soc_dapm_nc_pin(dapm, "MIC3R");
285 snd_soc_dapm_nc_pin(dapm, "LINE1R");
286 snd_soc_dapm_nc_pin(dapm, "LINE2L");
287 snd_soc_dapm_nc_pin(dapm, "LINE2R");
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288
289 /* Add N810 specific controls */
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290 err = snd_soc_add_controls(codec, aic33_n810_controls,
291 ARRAY_SIZE(aic33_n810_controls));
292 if (err < 0)
293 return err;
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294
295 /* Add N810 specific widgets */
ce6120cc 296 snd_soc_dapm_new_controls(dapm, aic33_dapm_widgets,
1a250598 297 ARRAY_SIZE(aic33_dapm_widgets));
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298
299 /* Set up N810 specific audio path audio_map */
ce6120cc 300 snd_soc_dapm_add_routes(dapm, audio_map, ARRAY_SIZE(audio_map));
2e74796a 301
ce6120cc 302 snd_soc_dapm_sync(dapm);
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303
304 return 0;
305}
306
307/* Digital audio interface glue - connects codec <--> CPU */
308static struct snd_soc_dai_link n810_dai = {
309 .name = "TLV320AIC33",
310 .stream_name = "AIC33",
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311 .cpu_dai_name = "omap-mcbsp-dai.1",
312 .platform_name = "omap-pcm-audio",
313 .codec_name = "tlv320aic3x-codec.2-0018",
314 .codec_dai_name = "tlv320aic3x-hifi",
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315 .init = n810_aic33_init,
316 .ops = &n810_ops,
317};
318
319/* Audio machine driver */
87506549 320static struct snd_soc_card snd_soc_n810 = {
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321 .name = "N810",
322 .dai_link = &n810_dai,
323 .num_links = 1,
324};
325
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326static struct platform_device *n810_snd_device;
327
328static int __init n810_soc_init(void)
329{
330 int err;
331 struct device *dev;
332
6e132fa6 333 if (!(machine_is_nokia_n810() || machine_is_nokia_n810_wimax()))
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334 return -ENODEV;
335
336 n810_snd_device = platform_device_alloc("soc-audio", -1);
337 if (!n810_snd_device)
338 return -ENOMEM;
339
f0fba2ad 340 platform_set_drvdata(n810_snd_device, &snd_soc_n810);
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341 err = platform_device_add(n810_snd_device);
342 if (err)
343 goto err1;
344
345 dev = &n810_snd_device->dev;
346
347 sys_clkout2_src = clk_get(dev, "sys_clkout2_src");
348 if (IS_ERR(sys_clkout2_src)) {
349 dev_err(dev, "Could not get sys_clkout2_src clock\n");
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350 err = PTR_ERR(sys_clkout2_src);
351 goto err2;
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352 }
353 sys_clkout2 = clk_get(dev, "sys_clkout2");
354 if (IS_ERR(sys_clkout2)) {
355 dev_err(dev, "Could not get sys_clkout2\n");
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356 err = PTR_ERR(sys_clkout2);
357 goto err3;
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358 }
359 /*
360 * Configure 12 MHz output on SYS_CLKOUT2. Therefore we must use
361 * 96 MHz as its parent in order to get 12 MHz
362 */
363 func96m_clk = clk_get(dev, "func_96m_ck");
364 if (IS_ERR(func96m_clk)) {
365 dev_err(dev, "Could not get func 96M clock\n");
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366 err = PTR_ERR(func96m_clk);
367 goto err4;
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368 }
369 clk_set_parent(sys_clkout2_src, func96m_clk);
370 clk_set_rate(sys_clkout2, 12000000);
371
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372 BUG_ON((gpio_request(N810_HEADSET_AMP_GPIO, "hs_amp") < 0) ||
373 (gpio_request(N810_SPEAKER_AMP_GPIO, "spk_amp") < 0));
374
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375 gpio_direction_output(N810_HEADSET_AMP_GPIO, 0);
376 gpio_direction_output(N810_SPEAKER_AMP_GPIO, 0);
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377
378 return 0;
e784539f 379err4:
2e74796a 380 clk_put(sys_clkout2);
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381err3:
382 clk_put(sys_clkout2_src);
383err2:
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384 platform_device_del(n810_snd_device);
385err1:
386 platform_device_put(n810_snd_device);
387
388 return err;
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389}
390
391static void __exit n810_soc_exit(void)
392{
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393 gpio_free(N810_SPEAKER_AMP_GPIO);
394 gpio_free(N810_HEADSET_AMP_GPIO);
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395 clk_put(sys_clkout2_src);
396 clk_put(sys_clkout2);
397 clk_put(func96m_clk);
f99a633a 398
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399 platform_device_unregister(n810_snd_device);
400}
401
402module_init(n810_soc_init);
403module_exit(n810_soc_exit);
404
b08f7a62 405MODULE_AUTHOR("Jarkko Nikula <jhnikula@gmail.com>");
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406MODULE_DESCRIPTION("ALSA SoC Nokia N810");
407MODULE_LICENSE("GPL");
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