1// SPDX-License-Identifier: GPL-2.0
2/*
3 * Sound for broadwell
4 *
5 * Copyright 2019 Google LLC
6 * Written by Simon Glass <sjg@chromium.org>
7 */
8
9#define LOG_CATEGORY UCLASS_SOUND
10
11#include <common.h>
12#include <audio_codec.h>
13#include <dm.h>
14#include <i2s.h>
15#include <sound.h>
16
17static int broadwell_sound_probe(struct udevice *dev)
18{
19	return sound_find_codec_i2s(dev);
20}
21
22static int broadwell_sound_setup(struct udevice *dev)
23{
24	struct sound_uc_priv *uc_priv = dev_get_uclass_priv(dev);
25	struct i2s_uc_priv *i2c_priv = dev_get_uclass_priv(uc_priv->i2s);
26	int ret;
27
28	if (uc_priv->setup_done)
29		return -EALREADY;
30	ret = audio_codec_set_params(uc_priv->codec, i2c_priv->id,
31				     i2c_priv->samplingrate,
32				     i2c_priv->samplingrate * i2c_priv->rfs,
33				     i2c_priv->bitspersample,
34				     i2c_priv->channels);
35	if (ret)
36		return ret;
37	uc_priv->setup_done = true;
38
39	return 0;
40}
41
42static int broadwell_sound_play(struct udevice *dev, void *data, uint data_size)
43{
44	struct sound_uc_priv *uc_priv = dev_get_uclass_priv(dev);
45
46	return i2s_tx_data(uc_priv->i2s, data, data_size);
47}
48
49static const struct sound_ops broadwell_sound_ops = {
50	.setup		= broadwell_sound_setup,
51	.play		= broadwell_sound_play,
52};
53
54static const struct udevice_id broadwell_sound_ids[] = {
55	{ .compatible = "google,samus-sound" },
56	{ }
57};
58
59U_BOOT_DRIVER(broadwell_sound_drv) = {
60	.name		= "broadwell_sound",
61	.id		= UCLASS_SOUND,
62	.of_match	= broadwell_sound_ids,
63	.probe		= broadwell_sound_probe,
64	.ops		= &broadwell_sound_ops,
65};
66