diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/sound/Makefile | 1 | ||||
| -rw-r--r-- | drivers/sound/i2s-uclass.c | 25 | ||||
| -rw-r--r-- | drivers/sound/sandbox.c | 60 |
3 files changed, 85 insertions, 1 deletions
diff --git a/drivers/sound/Makefile b/drivers/sound/Makefile index ae5fabed84..4aced9d22b 100644 --- a/drivers/sound/Makefile +++ b/drivers/sound/Makefile @@ -5,6 +5,7 @@ obj-$(CONFIG_SOUND) += sound.o obj-$(CONFIG_DM_SOUND) += codec-uclass.o +obj-$(CONFIG_DM_SOUND) += i2s-uclass.o obj-$(CONFIG_I2S) += sound-i2s.o obj-$(CONFIG_I2S_SAMSUNG) += samsung-i2s.o obj-$(CONFIG_SOUND_SANDBOX) += sandbox.o diff --git a/drivers/sound/i2s-uclass.c b/drivers/sound/i2s-uclass.c new file mode 100644 index 0000000000..b741e3952d --- /dev/null +++ b/drivers/sound/i2s-uclass.c @@ -0,0 +1,25 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * Copyright 2018 Google LLC + * Written by Simon Glass <sjg@chromium.org> + */ + +#include <common.h> +#include <dm.h> +#include <i2s.h> + +int i2s_tx_data(struct udevice *dev, void *data, uint data_size) +{ + struct i2s_ops *ops = i2s_get_ops(dev); + + if (!ops->tx_data) + return -ENOSYS; + + return ops->tx_data(dev, data, data_size); +} + +UCLASS_DRIVER(i2s) = { + .id = UCLASS_I2S, + .name = "i2s", + .per_device_auto_alloc_size = sizeof(struct i2s_uc_priv), +}; diff --git a/drivers/sound/sandbox.c b/drivers/sound/sandbox.c index d24eb9ae9c..2f7c68be0c 100644 --- a/drivers/sound/sandbox.c +++ b/drivers/sound/sandbox.c @@ -4,8 +4,9 @@ */ #include <common.h> -#include <dm.h> #include <audio_codec.h> +#include <dm.h> +#include <i2s.h> #include <asm/sound.h> #include <asm/sdl.h> @@ -17,6 +18,10 @@ struct sandbox_codec_priv { uint channels; }; +struct sandbox_i2s_priv { + int sum; /* Use to sum the provided audio data */ +}; + int sound_play(uint32_t msec, uint32_t frequency) { sandbox_sdl_sound_start(frequency); @@ -44,6 +49,13 @@ void sandbox_get_codec_params(struct udevice *dev, int *interfacep, int *ratep, *channelsp = priv->channels; } +int sandbox_get_i2s_sum(struct udevice *dev) +{ + struct sandbox_i2s_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) @@ -59,6 +71,34 @@ static int sandbox_codec_set_params(struct udevice *dev, int interface, 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 0; +} + static const struct audio_codec_ops sandbox_codec_ops = { .set_params = sandbox_codec_set_params, }; @@ -75,3 +115,21 @@ U_BOOT_DRIVER(sandbox_codec) = { .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), +}; |