summaryrefslogtreecommitdiffstats
path: root/sound/soc/omap/rx51.c
blob: 88052d29617f9da25aac0eb687301d9e6cd207ce (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
/*
 * rx51.c  --  SoC audio for Nokia RX-51
 *
 * Copyright (C) 2008 - 2009 Nokia Corporation
 *
 * Contact: Peter Ujfalusi <peter.ujfalusi@nokia.com>
 *          Eduardo Valentin <eduardo.valentin@nokia.com>
 *          Jarkko Nikula <jhnikula@gmail.com>
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * version 2 as published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
 * 02110-1301 USA
 *
 */

#include <linux/delay.h>
#include <linux/gpio.h>
#include <linux/platform_device.h>
#include <sound/core.h>
#include <sound/jack.h>
#include <sound/pcm.h>
#include <sound/soc.h>
#include <sound/soc-dapm.h>

#include <asm/mach-types.h>

#include "omap-mcbsp.h"
#include "omap-pcm.h"
#include "../codecs/tlv320aic3x.h"

#define RX51_TVOUT_SEL_GPIO		40
#define RX51_JACK_DETECT_GPIO		177
/*
 * REVISIT: TWL4030 GPIO base in RX-51. Now statically defined to 192. This
 * gpio is reserved in arch/arm/mach-omap2/board-rx51-peripherals.c
 */
#define RX51_SPEAKER_AMP_TWL_GPIO	(192 + 7)

enum {
	RX51_JACK_DISABLED,
	RX51_JACK_TVOUT,		/* tv-out */
};

static int rx51_spk_func;
static int rx51_dmic_func;
static int rx51_jack_func;

static void rx51_ext_control(struct snd_soc_codec *codec)
{
	if (rx51_spk_func)
		snd_soc_dapm_enable_pin(codec, "Ext Spk");
	else
		snd_soc_dapm_disable_pin(codec, "Ext Spk");
	if (rx51_dmic_func)
		snd_soc_dapm_enable_pin(codec, "DMic");
	else
		snd_soc_dapm_disable_pin(codec, "DMic");

	gpio_set_value(RX51_TVOUT_SEL_GPIO,
		       rx51_jack_func == RX51_JACK_TVOUT);

	snd_soc_dapm_sync(codec);
}

static int rx51_startup(struct snd_pcm_substream *substream)
{
	struct snd_pcm_runtime *runtime = substream->runtime;
	struct snd_soc_pcm_runtime *rtd = substream->private_data;
	struct snd_soc_codec *codec = rtd->socdev->card->codec;

	snd_pcm_hw_constraint_minmax(runtime,
				     SNDRV_PCM_HW_PARAM_CHANNELS, 2, 2);
	rx51_ext_control(codec);

	return 0;
}

static int rx51_hw_params(struct snd_pcm_substream *substream,
	struct snd_pcm_hw_params *params)
{
	struct snd_soc_pcm_runtime *rtd = substream->private_data;
	struct snd_soc_dai *codec_dai = rtd->dai->codec_dai;
	struct snd_soc_dai *cpu_dai = rtd->dai->cpu_dai;
	int err;

	/* Set codec DAI configuration */
	err = snd_soc_dai_set_fmt(codec_dai,
				  SND_SOC_DAIFMT_DSP_A |
				  SND_SOC_DAIFMT_IB_NF |
				  SND_SOC_DAIFMT_CBM_CFM);
	if (err < 0)
		return err;

	/* Set cpu DAI configuration */
	err = snd_soc_dai_set_fmt(cpu_dai,
				  SND_SOC_DAIFMT_DSP_A |
				  SND_SOC_DAIFMT_IB_NF |
				  SND_SOC_DAIFMT_CBM_CFM);
	if (err < 0)
		return err;

	/* Set the codec system clock for DAC and ADC */
	return snd_soc_dai_set_sysclk(codec_dai, 0, 19200000,
				      SND_SOC_CLOCK_IN);
}

static struct snd_soc_ops rx51_ops = {
	.startup = rx51_startup,
	.hw_params = rx51_hw_params,
};

static int rx51_get_spk(struct snd_kcontrol *kcontrol,
			struct snd_ctl_elem_value *ucontrol)
{
	ucontrol->value.integer.value[0] = rx51_spk_func;

	return 0;
}

static int rx51_set_spk(struct snd_kcontrol *kcontrol,
			struct snd_ctl_elem_value *ucontrol)
{
	struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);

	if (rx51_spk_func == ucontrol->value.integer.value[0])
		return 0;

	rx51_spk_func = ucontrol->value.integer.value[0];
	rx51_ext_control(codec);

	return 1;
}

static int rx51_spk_event(struct snd_soc_dapm_widget *w,
			  struct snd_kcontrol *k, int event)
{
	if (SND_SOC_DAPM_EVENT_ON(event))
		gpio_set_value(RX51_SPEAKER_AMP_TWL_GPIO, 1);
	else
		gpio_set_value(RX51_SPEAKER_AMP_TWL_GPIO, 0);

	return 0;
}

static int rx51_get_input(struct snd_kcontrol *kcontrol,
			  struct snd_ctl_elem_value *ucontrol)
{
	ucontrol->value.integer.value[0] = rx51_dmic_func;

	return 0;
}

static int rx51_set_input(struct snd_kcontrol *kcontrol,
			  struct snd_ctl_elem_value *ucontrol)
{
	struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);

	if (rx51_dmic_func == ucontrol->value.integer.value[0])
		return 0;

	rx51_dmic_func = ucontrol->value.integer.value[0];
	rx51_ext_control(codec);

	return 1;
}

static int rx51_get_jack(struct snd_kcontrol *kcontrol,
			 struct snd_ctl_elem_value *ucontrol)
{
	ucontrol->value.integer.value[0] = rx51_jack_func;

	return 0;
}

static int rx51_set_jack(struct snd_kcontrol *kcontrol,
			 struct snd_ctl_elem_value *ucontrol)
{
	struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);

	if (rx51_jack_func == ucontrol->value.integer.value[0])
		return 0;

	rx51_jack_func = ucontrol->value.integer.value[0];
	rx51_ext_control(codec);

	return 1;
}

static struct snd_soc_jack rx51_av_jack;

static struct snd_soc_jack_gpio rx51_av_jack_gpios[] = {
	{
		.gpio = RX51_JACK_DETECT_GPIO,
		.name = "avdet-gpio",
		.report = SND_JACK_VIDEOOUT,
		.invert = 1,
		.debounce_time = 200,
	},
};

static const struct snd_soc_dapm_widget aic34_dapm_widgets[] = {
	SND_SOC_DAPM_SPK("Ext Spk", rx51_spk_event),
	SND_SOC_DAPM_MIC("DMic", NULL),
};

static const struct snd_soc_dapm_route audio_map[] = {
	{"Ext Spk", NULL, "HPLOUT"},
	{"Ext Spk", NULL, "HPROUT"},

	{"DMic Rate 64", NULL, "Mic Bias 2V"},
	{"Mic Bias 2V", NULL, "DMic"},
};

static const char *spk_function[] = {"Off", "On"};
static const char *input_function[] = {"ADC", "Digital Mic"};
static const char *jack_function[] = {"Off", "TV-OUT"};

static const struct soc_enum rx51_enum[] = {
	SOC_ENUM_SINGLE_EXT(ARRAY_SIZE(spk_function), spk_function),
	SOC_ENUM_SINGLE_EXT(ARRAY_SIZE(input_function), input_function),
	SOC_ENUM_SINGLE_EXT(ARRAY_SIZE(jack_function), jack_function),
};

static const struct snd_kcontrol_new aic34_rx51_controls[] = {
	SOC_ENUM_EXT("Speaker Function", rx51_enum[0],
		     rx51_get_spk, rx51_set_spk),
	SOC_ENUM_EXT("Input Select",  rx51_enum[1],
		     rx51_get_input, rx51_set_input),
	SOC_ENUM_EXT("Jack Function", rx51_enum[2],
		     rx51_get_jack, rx51_set_jack),
};

static int rx51_aic34_init(struct snd_soc_codec *codec)
{
	struct snd_soc_card *card = codec->socdev->card;
	int err;

	/* Set up NC codec pins */
	snd_soc_dapm_nc_pin(codec, "MIC3L");
	snd_soc_dapm_nc_pin(codec, "MIC3R");
	snd_soc_dapm_nc_pin(codec, "LINE1R");

	/* Add RX-51 specific controls */
	err = snd_soc_add_controls(codec, aic34_rx51_controls,
				   ARRAY_SIZE(aic34_rx51_controls));
	if (err < 0)
		return err;

	/* Add RX-51 specific widgets */
	snd_soc_dapm_new_controls(codec, aic34_dapm_widgets,
				  ARRAY_SIZE(aic34_dapm_widgets));

	/* Set up RX-51 specific audio path audio_map */
	snd_soc_dapm_add_routes(codec, audio_map, ARRAY_SIZE(audio_map));

	snd_soc_dapm_sync(codec);

	/* AV jack detection */
	err = snd_soc_jack_new(card, "AV Jack",
			       SND_JACK_VIDEOOUT, &rx51_av_jack);
	if (err)
		return err;
	err = snd_soc_jack_add_gpios(&rx51_av_jack,
				     ARRAY_SIZE(rx51_av_jack_gpios),
				     rx51_av_jack_gpios);

	return err;
}

/* Digital audio interface glue - connects codec <--> CPU */
static struct snd_soc_dai_link rx51_dai[] = {
	{
		.name = "TLV320AIC34",
		.stream_name = "AIC34",
		.cpu_dai = &omap_mcbsp_dai[0],
		.codec_dai = &aic3x_dai,
		.init = rx51_aic34_init,
		.ops = &rx51_ops,
	},
};

/* Audio private data */
static struct aic3x_setup_data rx51_aic34_setup = {
	.gpio_func[0] = AIC3X_GPIO1_FUNC_DISABLED,
	.gpio_func[1] = AIC3X_GPIO2_FUNC_DIGITAL_MIC_INPUT,
};

/* Audio card */
static struct snd_soc_card rx51_sound_card = {
	.name = "RX-51",
	.dai_link = rx51_dai,
	.num_links = ARRAY_SIZE(rx51_dai),
	.platform = &omap_soc_platform,
};

/* Audio subsystem */
static struct snd_soc_device rx51_snd_devdata = {
	.card = &rx51_sound_card,
	.codec_dev = &soc_codec_dev_aic3x,
	.codec_data = &rx51_aic34_setup,
};

static struct platform_device *rx51_snd_device;

static int __init rx51_soc_init(void)
{
	int err;

	if (!machine_is_nokia_rx51())
		return -ENODEV;

	err = gpio_request(RX51_TVOUT_SEL_GPIO, "tvout_sel");
	if (err)
		goto err_gpio_tvout_sel;
	gpio_direction_output(RX51_TVOUT_SEL_GPIO, 0);

	rx51_snd_device = platform_device_alloc("soc-audio", -1);
	if (!rx51_snd_device) {
		err = -ENOMEM;
		goto err1;
	}

	platform_set_drvdata(rx51_snd_device, &rx51_snd_devdata);
	rx51_snd_devdata.dev = &rx51_snd_device->dev;
	*(unsigned int *)rx51_dai[0].cpu_dai->private_data = 1; /* McBSP2 */

	err = platform_device_add(rx51_snd_device);
	if (err)
		goto err2;

	return 0;
err2:
	platform_device_put(rx51_snd_device);
err1:
	gpio_free(RX51_TVOUT_SEL_GPIO);
err_gpio_tvout_sel:

	return err;
}

static void __exit rx51_soc_exit(void)
{
	snd_soc_jack_free_gpios(&rx51_av_jack, ARRAY_SIZE(rx51_av_jack_gpios),
				rx51_av_jack_gpios);

	platform_device_unregister(rx51_snd_device);
	gpio_free(RX51_TVOUT_SEL_GPIO);
}

module_init(rx51_soc_init);
module_exit(rx51_soc_exit);

MODULE_AUTHOR("Nokia Corporation");
MODULE_DESCRIPTION("ALSA SoC Nokia RX-51");
MODULE_LICENSE("GPL");
OpenPOWER on IntegriCloud