summaryrefslogtreecommitdiff
path: root/sound/soc/tegra/trimslice.c
blob: 99bcdd979eb2955cb484f773cbb1c1dcb6a830b4 (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
/*
 * trimslice.c - TrimSlice machine ASoC driver
 *
 * Copyright (C) 2011 - CompuLab, Ltd.
 * Author: Mike Rapoport <mike@compulab.co.il>
 *
 * Based on code copyright/by:
 * Author: Stephen Warren <swarren@nvidia.com>
 * 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
 * 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/module.h>
#include <linux/of.h>
#include <linux/platform_device.h>
#include <linux/slab.h>

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

#include "../codecs/tlv320aic23.h"

#include "tegra_asoc_utils.h"

#define DRV_NAME "tegra-snd-trimslice"

struct tegra_trimslice {
	struct tegra_asoc_utils_data util_data;
};

static int trimslice_asoc_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_card *card = rtd->card;
	struct tegra_trimslice *trimslice = snd_soc_card_get_drvdata(card);
	int srate, mclk;
	int err;

	srate = params_rate(params);
	mclk = 128 * srate;

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

	err = snd_soc_dai_set_sysclk(codec_dai, 0, mclk,
					SND_SOC_CLOCK_IN);
	if (err < 0) {
		dev_err(card->dev, "codec_dai clock not set\n");
		return err;
	}

	return 0;
}

static const struct snd_soc_ops trimslice_asoc_ops = {
	.hw_params = trimslice_asoc_hw_params,
};

static const struct snd_soc_dapm_widget trimslice_dapm_widgets[] = {
	SND_SOC_DAPM_HP("Line Out", NULL),
	SND_SOC_DAPM_LINE("Line In", NULL),
};

static const struct snd_soc_dapm_route trimslice_audio_map[] = {
	{"Line Out", NULL, "LOUT"},
	{"Line Out", NULL, "ROUT"},

	{"LLINEIN", NULL, "Line In"},
	{"RLINEIN", NULL, "Line In"},
};

static struct snd_soc_dai_link trimslice_tlv320aic23_dai = {
	.name = "TLV320AIC23",
	.stream_name = "AIC23",
	.codec_dai_name = "tlv320aic23-hifi",
	.ops = &trimslice_asoc_ops,
	.dai_fmt = SND_SOC_DAIFMT_I2S |
		   SND_SOC_DAIFMT_NB_NF |
		   SND_SOC_DAIFMT_CBS_CFS,
};

static struct snd_soc_card snd_soc_trimslice = {
	.name = "tegra-trimslice",
	.owner = THIS_MODULE,
	.dai_link = &trimslice_tlv320aic23_dai,
	.num_links = 1,

	.dapm_widgets = trimslice_dapm_widgets,
	.num_dapm_widgets = ARRAY_SIZE(trimslice_dapm_widgets),
	.dapm_routes = trimslice_audio_map,
	.num_dapm_routes = ARRAY_SIZE(trimslice_audio_map),
	.fully_routed = true,
};

static int tegra_snd_trimslice_probe(struct platform_device *pdev)
{
	struct device_node *np = pdev->dev.of_node;
	struct snd_soc_card *card = &snd_soc_trimslice;
	struct tegra_trimslice *trimslice;
	int ret;

	trimslice = devm_kzalloc(&pdev->dev, sizeof(struct tegra_trimslice),
				 GFP_KERNEL);
	if (!trimslice)
		return -ENOMEM;

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

	trimslice_tlv320aic23_dai.codec_of_node = of_parse_phandle(np,
			"nvidia,audio-codec", 0);
	if (!trimslice_tlv320aic23_dai.codec_of_node) {
		dev_err(&pdev->dev,
			"Property 'nvidia,audio-codec' missing or invalid\n");
		ret = -EINVAL;
		goto err;
	}

	trimslice_tlv320aic23_dai.cpu_of_node = of_parse_phandle(np,
			"nvidia,i2s-controller", 0);
	if (!trimslice_tlv320aic23_dai.cpu_of_node) {
		dev_err(&pdev->dev,
			"Property 'nvidia,i2s-controller' missing or invalid\n");
		ret = -EINVAL;
		goto err;
	}

	trimslice_tlv320aic23_dai.platform_of_node =
			trimslice_tlv320aic23_dai.cpu_of_node;

	ret = tegra_asoc_utils_init(&trimslice->util_data, &pdev->dev);
	if (ret)
		goto err;

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

	return 0;

err_fini_utils:
	tegra_asoc_utils_fini(&trimslice->util_data);
err:
	return ret;
}

static int tegra_snd_trimslice_remove(struct platform_device *pdev)
{
	struct snd_soc_card *card = platform_get_drvdata(pdev);
	struct tegra_trimslice *trimslice = snd_soc_card_get_drvdata(card);

	snd_soc_unregister_card(card);

	tegra_asoc_utils_fini(&trimslice->util_data);

	return 0;
}

static const struct of_device_id trimslice_of_match[] = {
	{ .compatible = "nvidia,tegra-audio-trimslice", },
	{},
};
MODULE_DEVICE_TABLE(of, trimslice_of_match);

static struct platform_driver tegra_snd_trimslice_driver = {
	.driver = {
		.name = DRV_NAME,
		.of_match_table = trimslice_of_match,
	},
	.probe = tegra_snd_trimslice_probe,
	.remove = tegra_snd_trimslice_remove,
};
module_platform_driver(tegra_snd_trimslice_driver);

MODULE_AUTHOR("Mike Rapoport <mike@compulab.co.il>");
MODULE_DESCRIPTION("Trimslice machine ASoC driver");
MODULE_LICENSE("GPL");
MODULE_ALIAS("platform:" DRV_NAME);