summaryrefslogtreecommitdiff
path: root/sound/soc/tegra/colibri_t30.c
blob: 6390be5b8d6bd0cba15a903d450601aaeda95747 (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
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
/*
 * SoC audio driver for Toradex Colibri T30
 *
 * Copyright (C) 2012 Toradex Inc.
 *
 * 2012-02-12: Marcel Ziswiler <marcel.ziswiler@toradex.com>
 *             initial version
 *
 * Copied from tegra_wm8903.c
 * Copyright (C) 2010-2011 - NVIDIA, 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.
 *
 * 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 Street, Fifth Floor, Boston, MA  02110-1301, USA.
 */

#include <asm/mach-types.h>

#include <linux/clk.h>
#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/slab.h>

#include <mach/tegra_asoc_pdata.h>

#include <sound/core.h>
#include <sound/pcm.h>
#include <sound/pcm_params.h>
#include <sound/soc.h>

#include "../codecs/sgtl5000.h"

#include "tegra_pcm.h"
#include "tegra_asoc_utils.h"

#define DRV_NAME "tegra-snd-colibri_t30-sgtl5000"

struct colibri_t30_sgtl5000 {
	struct tegra_asoc_utils_data util_data;
	struct tegra_asoc_platform_data *pdata;
	enum snd_soc_bias_level bias_level;
};

static int colibri_t30_sgtl5000_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->codec_dai;
	struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
	struct snd_soc_codec *codec = rtd->codec;
	struct snd_soc_card *card = codec->card;
	struct colibri_t30_sgtl5000 *machine = snd_soc_card_get_drvdata(card);
	struct tegra_asoc_platform_data *pdata = machine->pdata;
	int srate, mclk, i2s_daifmt;
	int err;
	int rate;

	/* sgtl5000 does not support 512*rate when in 96000 fs */
	srate = params_rate(params);
	switch (srate) {
	case 96000:
		mclk = 256 * srate;
		break;
	default:
		mclk = 512 * srate;
		break;
	}

	/* Sgtl5000 sysclk should be >= 8MHz and <= 27M */
	if (mclk < 8000000 || mclk > 27000000)
		return -EINVAL;

	if(pdata->i2s_param[HIFI_CODEC].is_i2s_master) {
		i2s_daifmt = SND_SOC_DAIFMT_NB_NF |
					SND_SOC_DAIFMT_CBS_CFS;
	} else {
		i2s_daifmt = SND_SOC_DAIFMT_NB_NF |
					SND_SOC_DAIFMT_CBM_CFM;
	}

	err = tegra_asoc_utils_set_rate(&machine->util_data, srate, mclk);
	if (err < 0) {
		if (!(machine->util_data.set_mclk % mclk))
			mclk = machine->util_data.set_mclk;
		else {
			dev_err(card->dev, "Can't configure clocks\n");
			return err;
		}
	}

	tegra_asoc_utils_lock_clk_rate(&machine->util_data, 1);

	rate = clk_get_rate(machine->util_data.clk_cdev1);

	/* Use DSP mode for mono on Tegra20 */
	if (params_channels(params) != 2) {
		i2s_daifmt |= SND_SOC_DAIFMT_DSP_A;
	} else {
		switch (pdata->i2s_param[HIFI_CODEC].i2s_mode) {
			case TEGRA_DAIFMT_I2S :
				i2s_daifmt |= SND_SOC_DAIFMT_I2S;
				break;
			case TEGRA_DAIFMT_DSP_A :
				i2s_daifmt |= SND_SOC_DAIFMT_DSP_A;
				break;
			case TEGRA_DAIFMT_DSP_B :
				i2s_daifmt |= SND_SOC_DAIFMT_DSP_B;
				break;
			case TEGRA_DAIFMT_LEFT_J :
				i2s_daifmt |= SND_SOC_DAIFMT_LEFT_J;
				break;
			case TEGRA_DAIFMT_RIGHT_J :
				i2s_daifmt |= SND_SOC_DAIFMT_RIGHT_J;
				break;
			default :
				dev_err(card->dev,
				"Can't configure i2s format\n");
				return -EINVAL;
		}
	}

	err = snd_soc_dai_set_fmt(codec_dai, i2s_daifmt);
	if (err < 0) {
		dev_err(card->dev, "codec_dai fmt not set\n");
		return err;
	}

	err = snd_soc_dai_set_fmt(cpu_dai, i2s_daifmt);
	if (err < 0) {
		dev_err(card->dev, "cpu_dai fmt not set\n");
		return err;
	}

	/* Set SGTL5000's SYSCLK (provided by clk_out_1) */
	err = snd_soc_dai_set_sysclk(codec_dai, SGTL5000_SYSCLK, rate, SND_SOC_CLOCK_IN);
	if (err < 0) {
		dev_err(card->dev, "codec_dai clock not set\n");
		return err;
	}

	return 0;
}

static int tegra_spdif_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_card *card = rtd->card;
	struct colibri_t30_sgtl5000 *machine = snd_soc_card_get_drvdata(card);
	int srate, mclk, min_mclk;
	int err;

	srate = params_rate(params);
	switch (srate) {
	case 11025:
	case 22050:
	case 44100:
	case 88200:
		mclk = 11289600;
		break;
	case 8000:
	case 16000:
	case 32000:
	case 48000:
	case 64000:
	case 96000:
		mclk = 12288000;
		break;
	default:
		return -EINVAL;
	}
	min_mclk = 128 * srate;

	err = tegra_asoc_utils_set_rate(&machine->util_data, srate, mclk);
	if (err < 0) {
		if (!(machine->util_data.set_mclk % min_mclk))
			mclk = machine->util_data.set_mclk;
		else {
			dev_err(card->dev, "Can't configure clocks\n");
			return err;
		}
	}

	tegra_asoc_utils_lock_clk_rate(&machine->util_data, 1);

	return 0;
}

static int tegra_hw_free(struct snd_pcm_substream *substream)
{
	struct snd_soc_pcm_runtime *rtd = substream->private_data;
	struct colibri_t30_sgtl5000 *machine = snd_soc_card_get_drvdata(rtd->card);

	tegra_asoc_utils_lock_clk_rate(&machine->util_data, 0);

	return 0;
}

static struct snd_soc_ops colibri_t30_sgtl5000_ops = {
	.hw_params = colibri_t30_sgtl5000_hw_params,
	.hw_free = tegra_hw_free,
};

static struct snd_soc_ops tegra_spdif_ops = {
	.hw_params = tegra_spdif_hw_params,
	.hw_free = tegra_hw_free,
};

/* Colibri T30 machine DAPM widgets */
static const struct snd_soc_dapm_widget colibri_t30_sgtl5000_dapm_widgets[] = {
	SND_SOC_DAPM_HP("HEADPHONE", NULL),
	SND_SOC_DAPM_LINE("LINEIN", NULL),
	SND_SOC_DAPM_MIC("MIC_IN", NULL),
};

/* Colibri T30 machine audio map (connections to the codec pins) */
static const struct snd_soc_dapm_route colibri_t30_sgtl5000_dapm_route[] = {
	/* Colibri SODIMM pin 1 (MIC_IN)
	   Colibri Evaluation Board: Audio jack X26 bottom pink
	   Iris: Audio header X9 pin 2
	   Orchid: Audio jack X11 bottom pink MIC in */
//mic bias GPIO handling
// [    9.359733] tegra-snd-colibri_t30-sgtl5000 tegra-snd-colibri_t30-sgtl5000.0: Failed to add route MICIN->MIC_IN
//	{ "MIC_IN", NULL, "MIC_IN" },

	/* Colibri SODIMM pin 5 & 7 (LINEIN_L/R)
	   Colibri Evaluation Board: Audio jack X26 top blue
	   Iris: Audio header X9 pin 4 & 3
	   MECS Tellurium: Audio jack X11 pin 1 & 2
	   Orchid: Audio jack X11 top blue line in */
	{ "LINEIN", NULL, "LINE_IN" },

	/* Colibri SODIMM pin 15 & 17 (HEADPHONE_L/R)
	   Colibri Evaluation Board: Audio jack X26 middle green
	   Iris: Audio jack X8
	   MECS Tellurium: Audio jack X11 pin 4 & 5 (HEADPHONE_LF/RF)
	   Orchid: Audio jack X11 middle green line out
	   Protea: Audio jack X53 line out */
//HP PGA handling
	{ "HEADPHONE", NULL, "HP_OUT" },
};

static int colibri_t30_sgtl5000_init(struct snd_soc_pcm_runtime *rtd)
{
	struct snd_soc_codec *codec = rtd->codec;
	struct snd_soc_dapm_context *dapm = &codec->dapm;
	struct snd_soc_card *card = codec->card;
	struct colibri_t30_sgtl5000 *machine = snd_soc_card_get_drvdata(card);
	int ret;

	machine->bias_level = SND_SOC_BIAS_STANDBY;

	ret = tegra_asoc_utils_register_ctls(&machine->util_data);
	if (ret < 0)
		return ret;

	snd_soc_dapm_nc_pin(dapm, "LINE_OUT");

	snd_soc_dapm_sync(dapm);

	return 0;
}

static struct snd_soc_dai_link colibri_t30_sgtl5000_dai[] = {
	{
		.name = "SGTL5000",
		.stream_name = "SGTL5000 PCM",
		.codec_name = "sgtl5000.4-000a",
		.platform_name = "tegra-pcm-audio",
		.cpu_dai_name = "tegra30-i2s.2",
		.codec_dai_name = "sgtl5000",
		.init = colibri_t30_sgtl5000_init,
		.ops = &colibri_t30_sgtl5000_ops,
	},
	{
		.name = "SPDIF",
		.stream_name = "SPDIF PCM",
		.codec_name = "spdif-dit.0",
		.platform_name = "tegra-pcm-audio",
		.cpu_dai_name = "tegra30-spdif",
		.codec_dai_name = "dit-hifi",
		.ops = &tegra_spdif_ops,
	},
};

static struct snd_soc_card snd_soc_colibri_t30_sgtl5000 = {
	.name = "colibri_t30-sgtl5000",
	.dai_link = colibri_t30_sgtl5000_dai,
	.num_links = ARRAY_SIZE(colibri_t30_sgtl5000_dai),
//	.set_bias_level
//	.set_bias_level_post
};

static __devinit int colibri_t30_sgtl5000_driver_probe(struct platform_device *pdev)
{
	struct snd_soc_card *card = &snd_soc_colibri_t30_sgtl5000;
	struct colibri_t30_sgtl5000 *machine;
	struct tegra_asoc_platform_data *pdata;
	int ret;

	pdata = pdev->dev.platform_data;
	if (!pdata) {
		dev_err(&pdev->dev, "No platform data supplied\n");
		return -EINVAL;
	}

	machine = kzalloc(sizeof(struct colibri_t30_sgtl5000), GFP_KERNEL);
	if (!machine) {
		dev_err(&pdev->dev, "Can't allocate colibri_t30_sgtl5000 struct\n");
		return -ENOMEM;
	}

	machine->pdata = pdata;

	ret = tegra_asoc_utils_init(&machine->util_data, &pdev->dev, card);
	if (ret)
		goto err_free_machine;

	card->dev = &pdev->dev;
	platform_set_drvdata(pdev, card);
	snd_soc_card_set_drvdata(card, machine);

	card->dapm_widgets = colibri_t30_sgtl5000_dapm_widgets;
	card->num_dapm_widgets = ARRAY_SIZE(colibri_t30_sgtl5000_dapm_widgets);

	card->dapm_routes = colibri_t30_sgtl5000_dapm_route;
	card->num_dapm_routes = ARRAY_SIZE(colibri_t30_sgtl5000_dapm_route);

	ret = snd_soc_register_card(card);
	if (ret) {
		dev_err(&pdev->dev, "snd_soc_register_card failed (%d)\n",
			ret);
		goto err_fini_utils;
	}

	if (!card->instantiated) {
		ret = -ENODEV;
		dev_err(&pdev->dev, "snd_soc_register_card failed (%d)\n",
			ret);
		goto err_unregister_card;
	}

	ret = tegra_asoc_utils_set_parent(&machine->util_data,
				pdata->i2s_param[HIFI_CODEC].is_i2s_master);
	if (ret) {
		dev_err(&pdev->dev, "tegra_asoc_utils_set_parent failed (%d)\n",
			ret);
		goto err_unregister_card;
	}

	return 0;

err_unregister_card:
	snd_soc_unregister_card(card);
err_fini_utils:
	tegra_asoc_utils_fini(&machine->util_data);
err_free_machine:
	kfree(machine);
	return ret;
}

static int __devexit colibri_t30_sgtl5000_driver_remove(struct platform_device *pdev)
{
	struct snd_soc_card *card = platform_get_drvdata(pdev);
	struct colibri_t30_sgtl5000 *machine = snd_soc_card_get_drvdata(card);

	snd_soc_unregister_card(card);

	tegra_asoc_utils_fini(&machine->util_data);

	kfree(machine);

	return 0;
}

static struct platform_driver colibri_t30_sgtl5000_driver = {
	.driver = {
		.name = DRV_NAME,
		.owner = THIS_MODULE,
		.pm = &snd_soc_pm_ops,
	},
	.probe = colibri_t30_sgtl5000_driver_probe,
	.remove = __devexit_p(colibri_t30_sgtl5000_driver_remove),
};

static int __init colibri_t30_sgtl5000_modinit(void)
{
	return platform_driver_register(&colibri_t30_sgtl5000_driver);
}
module_init(colibri_t30_sgtl5000_modinit);

static void __exit colibri_t30_sgtl5000_modexit(void)
{
	platform_driver_unregister(&colibri_t30_sgtl5000_driver);
}
module_exit(colibri_t30_sgtl5000_modexit);

/* Module information */
MODULE_AUTHOR("Marcel Ziswiler <marcel.ziswiler@toradex.com>");
MODULE_DESCRIPTION("ALSA SoC SGTL5000 on Toradex Colibri T30");
MODULE_LICENSE("GPL");
MODULE_ALIAS("platform:" DRV_NAME);