123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251252253254255256257258259260261262263264265266267 |
- // SPDX-License-Identifier: GPL-2.0+
- /*
- * Copyright (c) 2013 Google, Inc
- */
- #define LOG_CATEGORY UCLASS_SOUND
- #include <common.h>
- #include <audio_codec.h>
- #include <dm.h>
- #include <i2s.h>
- #include <log.h>
- #include <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 */
- bool silent; /* Sound is silent, don't use SDL */
- };
- struct sandbox_sound_priv {
- int setup_called; /* Incremented when setup() method is called */
- bool active; /* TX data is being sent */
- int sum; /* Use to sum the provided audio data */
- bool allow_beep; /* true to allow the start_beep() interface */
- int frequency_hz; /* Beep frequency if active, else 0 */
- };
- 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_active(struct udevice *dev)
- {
- struct sandbox_sound_priv *priv = dev_get_priv(dev);
- return priv->active;
- }
- int sandbox_get_sound_sum(struct udevice *dev)
- {
- struct sandbox_sound_priv *priv = dev_get_priv(dev);
- return priv->sum;
- }
- void sandbox_set_allow_beep(struct udevice *dev, bool allow)
- {
- struct sandbox_sound_priv *priv = dev_get_priv(dev);
- priv->allow_beep = allow;
- }
- int sandbox_get_beep_frequency(struct udevice *dev)
- {
- struct sandbox_sound_priv *priv = dev_get_priv(dev);
- return priv->frequency_hz;
- }
- 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];
- if (!priv->silent) {
- int ret;
- ret = sandbox_sdl_sound_play(data, data_size);
- if (ret)
- return ret;
- }
- return 0;
- }
- static int sandbox_i2s_probe(struct udevice *dev)
- {
- struct i2s_uc_priv *uc_priv = dev_get_uclass_priv(dev);
- struct sandbox_i2s_priv *priv = dev_get_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;
- priv->silent = dev_read_bool(dev, "sandbox,silent");
- if (priv->silent) {
- log_warning("Sound is silenced\n");
- } else if (sandbox_sdl_sound_init(uc_priv->samplingrate,
- uc_priv->channels)) {
- /* Ignore any error here - we'll just have no sound */
- priv->silent = true;
- }
- return 0;
- }
- 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_stop_play(struct udevice *dev)
- {
- struct sandbox_sound_priv *priv = dev_get_priv(dev);
- sandbox_sdl_sound_stop();
- priv->active = false;
- return 0;
- }
- int sandbox_sound_start_beep(struct udevice *dev, int frequency_hz)
- {
- struct sandbox_sound_priv *priv = dev_get_priv(dev);
- if (!priv->allow_beep)
- return -ENOSYS;
- priv->frequency_hz = frequency_hz;
- return 0;
- }
- int sandbox_sound_stop_beep(struct udevice *dev)
- {
- struct sandbox_sound_priv *priv = dev_get_priv(dev);
- if (!priv->allow_beep)
- return -ENOSYS;
- priv->frequency_hz = 0;
- return 0;
- }
- 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,
- .stop_play = sandbox_sound_stop_play,
- .start_beep = sandbox_sound_start_beep,
- .stop_beep = sandbox_sound_stop_beep,
- };
- 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,
- };
|