dm: sound: Create a uclass for sound

[oweals/u-boot.git] / drivers / sound / sandbox.c

diff --git a/drivers/sound/sandbox.c b/drivers/sound/sandbox.c
index 5599bb948fe60981e39d440b8e159ce5ac268a76..ee2635f41d256ad402d0e17ac399fe7ca584f24a 100644 (file)
--- a/drivers/sound/sandbox.c
+++ b/drivers/sound/sandbox.c
@@ -1,13 +1,34 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright (c) 2013 Google, Inc
- *
- * SPDX-License-Identifier:    GPL-2.0+
  */
 
 #include <common.h>
+#include <audio_codec.h>
+#include <dm.h>
+#include <i2s.h>
+#include <sound.h>
 #include <asm/sound.h>
 #include <asm/sdl.h>
 
+struct sandbox_codec_priv {
+       int interface;
+       int rate;
+       int mclk_freq;
+       int bits_per_sample;
+       uint channels;
+};
+
+struct sandbox_i2s_priv {
+       int sum;        /* Use to sum the provided audio data */
+};
+
+struct sandbox_sound_priv {
+       int setup_called;
+       int sum;        /* Use to sum the provided audio data */
+};
+
+#ifndef CONFIG_DM_SOUND
 int sound_play(uint32_t msec, uint32_t frequency)
 {
        sandbox_sdl_sound_start(frequency);
@@ -16,8 +37,166 @@ int sound_play(uint32_t msec, uint32_t frequency)
 
        return 0;
 }
+#endif /* CONFIG_DM_SOUND */
 
 int sound_init(const void *blob)
 {
        return sandbox_sdl_sound_init();
 }
+
+void sandbox_get_codec_params(struct udevice *dev, int *interfacep, int *ratep,
+                             int *mclk_freqp, int *bits_per_samplep,
+                             uint *channelsp)
+{
+       struct sandbox_codec_priv *priv = dev_get_priv(dev);
+
+       *interfacep = priv->interface;
+       *ratep = priv->rate;
+       *mclk_freqp = priv->mclk_freq;
+       *bits_per_samplep = priv->bits_per_sample;
+       *channelsp = priv->channels;
+}
+
+int sandbox_get_i2s_sum(struct udevice *dev)
+{
+       struct sandbox_i2s_priv *priv = dev_get_priv(dev);
+
+       return priv->sum;
+}
+
+int sandbox_get_setup_called(struct udevice *dev)
+{
+       struct sandbox_sound_priv *priv = dev_get_priv(dev);
+
+       return priv->setup_called;
+}
+
+int sandbox_get_sound_sum(struct udevice *dev)
+{
+       struct sandbox_sound_priv *priv = dev_get_priv(dev);
+
+       return priv->sum;
+}
+
+static int sandbox_codec_set_params(struct udevice *dev, int interface,
+                                   int rate, int mclk_freq,
+                                   int bits_per_sample, uint channels)
+{
+       struct sandbox_codec_priv *priv = dev_get_priv(dev);
+
+       priv->interface = interface;
+       priv->rate = rate;
+       priv->mclk_freq = mclk_freq;
+       priv->bits_per_sample = bits_per_sample;
+       priv->channels = channels;
+
+       return 0;
+}
+
+static int sandbox_i2s_tx_data(struct udevice *dev, void *data,
+                              uint data_size)
+{
+       struct sandbox_i2s_priv *priv = dev_get_priv(dev);
+       int i;
+
+       for (i = 0; i < data_size; i++)
+               priv->sum += ((uint8_t *)data)[i];
+
+       return 0;
+}
+
+static int sandbox_i2s_probe(struct udevice *dev)
+{
+       struct i2s_uc_priv *uc_priv = dev_get_uclass_priv(dev);
+
+       /* Use hard-coded values here */
+       uc_priv->rfs = 256;
+       uc_priv->bfs = 32;
+       uc_priv->audio_pll_clk = 192000000;
+       uc_priv->samplingrate = 48000;
+       uc_priv->bitspersample = 16;
+       uc_priv->channels = 2;
+       uc_priv->id = 1;
+
+       return sandbox_sdl_sound_init();
+}
+
+static int sandbox_sound_setup(struct udevice *dev)
+{
+       struct sandbox_sound_priv *priv = dev_get_priv(dev);
+
+       priv->setup_called++;
+
+       return 0;
+}
+
+static int sandbox_sound_play(struct udevice *dev, void *data, uint data_size)
+{
+       struct sound_uc_priv *uc_priv = dev_get_uclass_priv(dev);
+       struct sandbox_sound_priv *priv = dev_get_priv(dev);
+       int i;
+
+       for (i = 0; i < data_size; i++)
+               priv->sum += ((uint8_t *)data)[i];
+
+       return i2s_tx_data(uc_priv->i2s, data, data_size);
+}
+
+static int sandbox_sound_probe(struct udevice *dev)
+{
+       return sound_find_codec_i2s(dev);
+}
+
+static const struct audio_codec_ops sandbox_codec_ops = {
+       .set_params     = sandbox_codec_set_params,
+};
+
+static const struct udevice_id sandbox_codec_ids[] = {
+       { .compatible = "sandbox,audio-codec" },
+       { }
+};
+
+U_BOOT_DRIVER(sandbox_codec) = {
+       .name           = "sandbox_codec",
+       .id             = UCLASS_AUDIO_CODEC,
+       .of_match       = sandbox_codec_ids,
+       .ops            = &sandbox_codec_ops,
+       .priv_auto_alloc_size   = sizeof(struct sandbox_codec_priv),
+};
+
+static const struct i2s_ops sandbox_i2s_ops = {
+       .tx_data        = sandbox_i2s_tx_data,
+};
+
+static const struct udevice_id sandbox_i2s_ids[] = {
+       { .compatible = "sandbox,i2s" },
+       { }
+};
+
+U_BOOT_DRIVER(sandbox_i2s) = {
+       .name           = "sandbox_i2s",
+       .id             = UCLASS_I2S,
+       .of_match       = sandbox_i2s_ids,
+       .ops            = &sandbox_i2s_ops,
+       .probe          = sandbox_i2s_probe,
+       .priv_auto_alloc_size   = sizeof(struct sandbox_i2s_priv),
+};
+
+static const struct sound_ops sandbox_sound_ops = {
+       .setup  = sandbox_sound_setup,
+       .play   = sandbox_sound_play,
+};
+
+static const struct udevice_id sandbox_sound_ids[] = {
+       { .compatible = "sandbox,sound" },
+       { }
+};
+
+U_BOOT_DRIVER(sandbox_sound) = {
+       .name           = "sandbox_sound",
+       .id             = UCLASS_SOUND,
+       .of_match       = sandbox_sound_ids,
+       .ops            = &sandbox_sound_ops,
+       .priv_auto_alloc_size   = sizeof(struct sandbox_sound_priv),
+       .probe          = sandbox_sound_probe,
+};