Add a sound driver for samus which ties together the audio codec and
I2S controller.
Signed-off-by: Simon Glass <s...@chromium.org>
---
drivers/sound/Makefile | 2 +-
drivers/sound/broadwell_sound.c | 65 +++++++++++++++++++++++++++++++++
2 files changed, 66 insertions(+), 1 deletion(-)
create mode 100644 drivers/sound/broadwell_sound.c
diff --git a/drivers/sound/Makefile b/drivers/sound/Makefile
index 29d0396e5d..a9516e9c03 100644
--- a/drivers/sound/Makefile
+++ b/drivers/sound/Makefile
@@ -17,5 +17,5 @@ obj-$(CONFIG_SOUND_MAX98095) += max98095.o maxim_codec.o
obj-$(CONFIG_SOUND_INTEL_HDA) += hda_codec.o
obj-$(CONFIG_SOUND_I8254) += i8254_beep.o
obj-$(CONFIG_SOUND_RT5677) += rt5677.o
-obj-$(CONFIG_INTEL_BROADWELL) += broadwell_i2s.o
+obj-$(CONFIG_INTEL_BROADWELL) += broadwell_i2s.o #broadwell_sound.o
obj-$(CONFIG_SOUND_IVYBRIDGE) += ivybridge_sound.o
diff --git a/drivers/sound/broadwell_sound.c b/drivers/sound/broadwell_sound.c
new file mode 100644
index 0000000000..6e083fe1f6
--- /dev/null
+++ b/drivers/sound/broadwell_sound.c
@@ -0,0 +1,65 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Sound for broadwell
+ *
+ * Copyright 2019 Google LLC
+ * Written by Simon Glass <s...@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,
+};
--
2.20.1.321.g9e740568ce-goog
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