mirror of
https://github.com/zephyrproject-rtos/zephyr
synced 2025-08-11 15:55:53 +00:00
e18fcbba5a
Now that device_api attribute is unmodified at runtime, as well as all the other attributes, it is possible to switch all device driver instance to be constant. A coccinelle rule is used for this: @r_const_dev_1 disable optional_qualifier @ @@ -struct device * +const struct device * @r_const_dev_2 disable optional_qualifier @ @@ -struct device * const +const struct device * Fixes #27399 Signed-off-by: Tomasz Bursztyka <tomasz.bursztyka@linux.intel.com>
58 lines
1.1 KiB
C
58 lines
1.1 KiB
C
/*
|
|
* Copyright (c) 2018 Intel Corporation
|
|
*
|
|
* SPDX-License-Identifier: Apache-2.0
|
|
*/
|
|
|
|
#include <kernel.h>
|
|
#include <string.h>
|
|
#include <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) {
|
|
struct i2s_config *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;
|
|
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;
|
|
}
|