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- // SPDX-License-Identifier: GPL-2.0
- /*
- * Sound for broadwell
- *
- * Copyright 2019 Google LLC
- * Written by Simon Glass <sjg@chromium.org>
- */
- #define LOG_CATEGORY UCLASS_SOUND
- #include <common.h>
- #include <audio_codec.h>
- #include <dm.h>
- #include <i2s.h>
- #include <sound.h>
- static int broadwell_sound_probe(struct udevice *dev)
- {
- return sound_find_codec_i2s(dev);
- }
- static int broadwell_sound_setup(struct udevice *dev)
- {
- struct sound_uc_priv *uc_priv = dev_get_uclass_priv(dev);
- struct i2s_uc_priv *i2c_priv = dev_get_uclass_priv(uc_priv->i2s);
- int ret;
- if (uc_priv->setup_done)
- return -EALREADY;
- ret = audio_codec_set_params(uc_priv->codec, i2c_priv->id,
- i2c_priv->samplingrate,
- i2c_priv->samplingrate * i2c_priv->rfs,
- i2c_priv->bitspersample,
- i2c_priv->channels);
- if (ret)
- return ret;
- uc_priv->setup_done = true;
- return 0;
- }
- static int broadwell_sound_play(struct udevice *dev, void *data, uint data_size)
- {
- struct sound_uc_priv *uc_priv = dev_get_uclass_priv(dev);
- return i2s_tx_data(uc_priv->i2s, data, data_size);
- }
- static const struct sound_ops broadwell_sound_ops = {
- .setup = broadwell_sound_setup,
- .play = broadwell_sound_play,
- };
- static const struct udevice_id broadwell_sound_ids[] = {
- { .compatible = "google,samus-sound" },
- { }
- };
- U_BOOT_DRIVER(broadwell_sound_drv) = {
- .name = "broadwell_sound",
- .id = UCLASS_SOUND,
- .of_match = broadwell_sound_ids,
- .probe = broadwell_sound_probe,
- .ops = &broadwell_sound_ops,
- };
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