aboutsummaryrefslogtreecommitdiff
path: root/sound/soc/imx/imx-sgtl5000.c
blob: 82ee8eca86803218da130a7961c7d2da1e497601 (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
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
/*
 * sound/soc/imx/3ds-sgtl5000.c --  SoC audio for i.MX 3ds boards with
 *                                  sgtl5000 codec
 *
 * Copyright 2009 Sascha Hauer, Pengutronix <s.hauer@pengutronix.de>
 * Copyright (C) 2011 Freescale Semiconductor, Inc.
 *
 * This program is free software; you can redistribute  it and/or modify it
 * under  the terms of  the GNU General  Public License as published by the
 * Free Software Foundation;  either version 2 of the  License, or (at your
 * option) any later version.
 */

#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/device.h>
#include <linux/i2c.h>
#include <linux/fsl_devices.h>
#include <linux/gpio.h>
#include <sound/core.h>
#include <sound/pcm.h>
#include <sound/soc.h>
#include <sound/jack.h>
#include <sound/soc-dapm.h>
#include <asm/mach-types.h>
#include <mach/audmux.h>

#include "../codecs/sgtl5000.h"
#include "imx-ssi.h"

static struct imx_sgtl5000_priv {
	int sysclk;
	int hw;
	struct platform_device *pdev;
} card_priv;

static struct snd_soc_jack hs_jack;
static struct snd_soc_card imx_sgtl5000;

/* Headphones jack detection DAPM pins */
static struct snd_soc_jack_pin hs_jack_pins[] = {
	{
		.pin = "Headphone Jack",
		.mask = SND_JACK_HEADPHONE,
	},
};

/* Headphones jack detection gpios */
static struct snd_soc_jack_gpio hs_jack_gpios[] = {
	[0] = {
		/* gpio is set on per-platform basis */
		.name           = "hp-gpio",
		.report         = SND_JACK_HEADPHONE,
		.debounce_time	= 200,
	},
};

static int sgtl5000_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->codec_dai;
	struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
	u32 dai_format;
	int ret;
	unsigned int channels = params_channels(params);

	snd_soc_dai_set_sysclk(codec_dai, SGTL5000_SYSCLK, card_priv.sysclk, 0);

	snd_soc_dai_set_sysclk(codec_dai, SGTL5000_LRCLK, params_rate(params), 0);

	dai_format = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
		SND_SOC_DAIFMT_CBM_CFM;

	/* set codec DAI configuration */
	ret = snd_soc_dai_set_fmt(codec_dai, dai_format);
	if (ret < 0)
		return ret;


	/* TODO: The SSI driver should figure this out for us */
	switch (channels) {
	case 2:
		snd_soc_dai_set_tdm_slot(cpu_dai, 0xfffffffc, 0xfffffffc, 2, 0);
		break;
	case 1:
		snd_soc_dai_set_tdm_slot(cpu_dai, 0xfffffffe, 0xfffffffe, 1, 0);
		break;
	default:
		return -EINVAL;
	}

	/* set cpu DAI configuration */
	dai_format = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_IF |
		SND_SOC_DAIFMT_CBM_CFM;
	ret = snd_soc_dai_set_fmt(cpu_dai, dai_format);
	if (ret < 0)
		return ret;

	return 0;
}

static struct snd_soc_ops imx_sgtl5000_hifi_ops = {
	.hw_params = sgtl5000_params,
};

static int sgtl5000_jack_func;
static int sgtl5000_spk_func;
static int sgtl5000_line_in_func;

static const char *jack_function[] = { "off", "on"};

static const char *spk_function[] = { "off", "on" };

static const char *line_in_function[] = { "off", "on" };

static const struct soc_enum sgtl5000_enum[] = {
	SOC_ENUM_SINGLE_EXT(2, jack_function),
	SOC_ENUM_SINGLE_EXT(2, spk_function),
	SOC_ENUM_SINGLE_EXT(2, line_in_function),
};

static int sgtl5000_get_jack(struct snd_kcontrol *kcontrol,
			     struct snd_ctl_elem_value *ucontrol)
{
	ucontrol->value.enumerated.item[0] = sgtl5000_jack_func;
	return 0;
}

static int sgtl5000_set_jack(struct snd_kcontrol *kcontrol,
			     struct snd_ctl_elem_value *ucontrol)
{
	struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);

	if (sgtl5000_jack_func == ucontrol->value.enumerated.item[0])
		return 0;

	sgtl5000_jack_func = ucontrol->value.enumerated.item[0];
	if (sgtl5000_jack_func)
		snd_soc_dapm_enable_pin(&codec->dapm, "Headphone Jack");
	else
		snd_soc_dapm_disable_pin(&codec->dapm, "Headphone Jack");

	snd_soc_dapm_sync(&codec->dapm);
	return 1;
}

static int sgtl5000_get_spk(struct snd_kcontrol *kcontrol,
			    struct snd_ctl_elem_value *ucontrol)
{
	ucontrol->value.enumerated.item[0] = sgtl5000_spk_func;
	return 0;
}

static int sgtl5000_set_spk(struct snd_kcontrol *kcontrol,
			    struct snd_ctl_elem_value *ucontrol)
{
	struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);

	if (sgtl5000_spk_func == ucontrol->value.enumerated.item[0])
		return 0;

	sgtl5000_spk_func = ucontrol->value.enumerated.item[0];
	if (sgtl5000_spk_func)
		snd_soc_dapm_enable_pin(&codec->dapm, "Ext Spk");
	else
		snd_soc_dapm_disable_pin(&codec->dapm, "Ext Spk");

	snd_soc_dapm_sync(&codec->dapm);
	return 1;
}

static int sgtl5000_get_line_in(struct snd_kcontrol *kcontrol,
			     struct snd_ctl_elem_value *ucontrol)
{
	ucontrol->value.enumerated.item[0] = sgtl5000_line_in_func;
	return 0;
}

static int sgtl5000_set_line_in(struct snd_kcontrol *kcontrol,
			     struct snd_ctl_elem_value *ucontrol)
{
	struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);

	if (sgtl5000_line_in_func == ucontrol->value.enumerated.item[0])
		return 0;

	sgtl5000_line_in_func = ucontrol->value.enumerated.item[0];
	if (sgtl5000_line_in_func)
		snd_soc_dapm_enable_pin(&codec->dapm, "Line In Jack");
	else
		snd_soc_dapm_disable_pin(&codec->dapm, "Line In Jack");

	snd_soc_dapm_sync(&codec->dapm);
	return 1;
}

/* imx_3stack card dapm widgets */
static const struct snd_soc_dapm_widget imx_3stack_dapm_widgets[] = {
	SND_SOC_DAPM_MIC("Mic Jack", NULL),
	SND_SOC_DAPM_LINE("Line In Jack", NULL),
	SND_SOC_DAPM_SPK("Ext Spk", NULL),
	SND_SOC_DAPM_HP("Headphone Jack", NULL),
};

static const struct snd_kcontrol_new sgtl5000_machine_controls[] = {
	SOC_ENUM_EXT("Jack Function", sgtl5000_enum[0], sgtl5000_get_jack,
		     sgtl5000_set_jack),
	SOC_ENUM_EXT("Speaker Function", sgtl5000_enum[1], sgtl5000_get_spk,
		     sgtl5000_set_spk),
	SOC_ENUM_EXT("Line In Function", sgtl5000_enum[1], sgtl5000_get_line_in,
		     sgtl5000_set_line_in),
};

/* imx_3stack machine connections to the codec pins */
static const struct snd_soc_dapm_route audio_map[] = {

	/* Mic Jack --> MIC_IN (with automatic bias) */
	{"MIC_IN", NULL, "Mic Jack"},

	/* Line in Jack --> LINE_IN */
	{"LINE_IN", NULL, "Line In Jack"},

	/* HP_OUT --> Headphone Jack */
	{"Headphone Jack", NULL, "HP_OUT"},

	/* LINE_OUT --> Ext Speaker */
	{"Ext Spk", NULL, "LINE_OUT"},
};

static int imx_3stack_sgtl5000_init(struct snd_soc_pcm_runtime *rtd)
{
	struct snd_soc_codec *codec = rtd->codec;
	int ret;

	ret = snd_soc_add_controls(codec, sgtl5000_machine_controls,
			ARRAY_SIZE(sgtl5000_machine_controls));
	if (ret)
		return ret;

	/* Add imx_3stack specific widgets */
	snd_soc_dapm_new_controls(&codec->dapm, imx_3stack_dapm_widgets,
				  ARRAY_SIZE(imx_3stack_dapm_widgets));

	/* Set up imx_3stack specific audio path audio_map */
	snd_soc_dapm_add_routes(&codec->dapm, audio_map, ARRAY_SIZE(audio_map));

	snd_soc_dapm_disable_pin(&codec->dapm, "Line In Jack");
	snd_soc_dapm_enable_pin(&codec->dapm, "Headphone Jack");
	snd_soc_dapm_sync(&codec->dapm);

	/* Jack detection API stuff */
	ret = snd_soc_jack_new(codec, "Headphone Jack",
			       SND_JACK_HEADPHONE, &hs_jack);
	if (ret)
		return ret;

	ret = snd_soc_jack_add_pins(&hs_jack, ARRAY_SIZE(hs_jack_pins),
				hs_jack_pins);
	if (ret) {
		printk(KERN_ERR "failed to call  snd_soc_jack_add_pins\n");
		return ret;
	}

	ret = snd_soc_jack_add_gpios(&hs_jack, ARRAY_SIZE(hs_jack_gpios),
				hs_jack_gpios);
	if (ret)
		printk(KERN_WARNING "failed to call snd_soc_jack_add_gpios\n");

	return 0;
}

static struct snd_soc_dai_link imx_sgtl5000_dai[] = {
	{
		.name		= "HiFi",
		.stream_name	= "HiFi",
		.codec_dai_name	= "sgtl5000",
		.codec_name	= "sgtl5000.1-000a",
		.cpu_dai_name	= "imx-ssi.1",
		.platform_name	= "imx-pcm-audio.1",
		.init		= imx_3stack_sgtl5000_init,
		.ops		= &imx_sgtl5000_hifi_ops,
	},
};

static struct snd_soc_card imx_sgtl5000 = {
	.name		= "sgtl5000-audio",
	.dai_link	= imx_sgtl5000_dai,
	.num_links	= ARRAY_SIZE(imx_sgtl5000_dai),
};

static struct platform_device *imx_sgtl5000_snd_device;

static int imx_audmux_config(int slave, int master)
{
	unsigned int ptcr, pdcr;
	slave = slave - 1;
	master = master - 1;

	/* SSI0 mastered by port 5 */
	ptcr = MXC_AUDMUX_V2_PTCR_SYN |
		MXC_AUDMUX_V2_PTCR_TFSDIR |
		MXC_AUDMUX_V2_PTCR_TFSEL(master) |
		MXC_AUDMUX_V2_PTCR_TCLKDIR |
		MXC_AUDMUX_V2_PTCR_TCSEL(master);
	pdcr = MXC_AUDMUX_V2_PDCR_RXDSEL(master);
	mxc_audmux_v2_configure_port(slave, ptcr, pdcr);

	ptcr = MXC_AUDMUX_V2_PTCR_SYN;
	pdcr = MXC_AUDMUX_V2_PDCR_RXDSEL(slave);
	mxc_audmux_v2_configure_port(master, ptcr, pdcr);

	return 0;
}

static int __devinit imx_sgtl5000_probe(struct platform_device *pdev)
{
	struct mxc_audio_platform_data *plat = pdev->dev.platform_data;

	int ret = 0;

	card_priv.pdev = pdev;

	imx_audmux_config(plat->src_port, plat->ext_port);

	ret = -EINVAL;
	if (plat->init && plat->init())
		return ret;

	card_priv.sysclk = plat->sysclk;

	hs_jack_gpios[0].gpio = plat->hp_gpio;
	hs_jack_gpios[0].invert = plat->hp_active_low;

	return 0;
}

static int imx_sgtl5000_remove(struct platform_device *pdev)
{
	struct mxc_audio_platform_data *plat = pdev->dev.platform_data;

	if (plat->finit)
		plat->finit();

	return 0;
}

static struct platform_driver imx_sgtl5000_audio_driver = {
	.probe = imx_sgtl5000_probe,
	.remove = imx_sgtl5000_remove,
	.driver = {
		   .name = "imx-sgtl5000",
		   },
};

static int __init imx_sgtl5000_init(void)
{
	int ret;

	ret = platform_driver_register(&imx_sgtl5000_audio_driver);
	if (ret)
		return -ENOMEM;

	if (machine_is_mx35_3ds())
		imx_sgtl5000_dai[0].codec_name = "sgtl5000.0-000a";
	else
		imx_sgtl5000_dai[0].codec_name = "sgtl5000.1-000a";

	imx_sgtl5000_snd_device = platform_device_alloc("soc-audio", -1);
	if (!imx_sgtl5000_snd_device)
		return -ENOMEM;

	platform_set_drvdata(imx_sgtl5000_snd_device, &imx_sgtl5000);

	ret = platform_device_add(imx_sgtl5000_snd_device);

	if (ret) {
		printk(KERN_ERR "ASoC: Platform device allocation failed\n");
		platform_device_put(imx_sgtl5000_snd_device);
	}

	return ret;
}

static void __exit imx_sgtl5000_exit(void)
{
	platform_driver_unregister(&imx_sgtl5000_audio_driver);
	platform_device_unregister(imx_sgtl5000_snd_device);
}

late_initcall(imx_sgtl5000_init);
module_exit(imx_sgtl5000_exit);

MODULE_AUTHOR("Sascha Hauer <s.hauer@pengutronix.de>");
MODULE_DESCRIPTION("PhyCORE ALSA SoC driver");
MODULE_LICENSE("GPL");