blob: d159a5b67fd3d61cb7150f93789045636a9c7607 [file] [log] [blame]
/*
* Copyright (c) 2018 Intel Corporation
*
* SPDX-License-Identifier: Apache-2.0
*/
#include <zephyr/kernel.h>
#include <string.h>
#include <zephyr/drivers/i2s.h>
int z_impl_i2s_buf_read(const struct device *dev, void *buf, size_t *size)
{
void *mem_block;
int ret;
ret = i2s_read((const struct device *)dev, &mem_block, size);
if (!ret) {
const struct i2s_config *rx_cfg;
rx_cfg = i2s_config_get((const struct device *)dev, I2S_DIR_RX);
memcpy(buf, mem_block, *size);
k_mem_slab_free(rx_cfg->mem_slab, mem_block);
}
return ret;
}
int z_impl_i2s_buf_write(const struct device *dev, void *buf, size_t size)
{
int ret;
const struct i2s_config *tx_cfg;
void *mem_block;
tx_cfg = i2s_config_get((const struct device *)dev, I2S_DIR_TX);
if (!tx_cfg) {
return -EIO;
}
if (size > tx_cfg->block_size) {
return -EINVAL;
}
ret = k_mem_slab_alloc(tx_cfg->mem_slab, &mem_block, K_FOREVER);
if (ret < 0) {
return -ENOMEM;
}
memcpy(mem_block, (void *)buf, size);
ret = i2s_write((const struct device *)dev, mem_block, size);
if (ret != 0) {
k_mem_slab_free(tx_cfg->mem_slab, mem_block);
}
return ret;
}