125 lines
2.8 KiB
C
125 lines
2.8 KiB
C
/*
|
|
* Copyright (c) 2018 Intel Corporation
|
|
*
|
|
* SPDX-License-Identifier: Apache-2.0
|
|
*/
|
|
|
|
#include <zephyr/kernel.h>
|
|
#include <zephyr/internal/syscall_handler.h>
|
|
#include <zephyr/drivers/i2s.h>
|
|
|
|
|
|
static inline int z_vrfy_i2s_configure(const struct device *dev,
|
|
enum i2s_dir dir,
|
|
const struct i2s_config *cfg_ptr)
|
|
{
|
|
struct i2s_config config;
|
|
int ret = -EINVAL;
|
|
|
|
if (K_SYSCALL_DRIVER_I2S(dev, configure)) {
|
|
goto out;
|
|
}
|
|
|
|
K_OOPS(k_usermode_from_copy(&config, (const void *)cfg_ptr,
|
|
sizeof(struct i2s_config)));
|
|
|
|
/* Check that the k_mem_slab provided is a valid pointer and that
|
|
* the caller has permission on it
|
|
*/
|
|
if (K_SYSCALL_OBJ(config.mem_slab, K_OBJ_MEM_SLAB)) {
|
|
goto out;
|
|
}
|
|
|
|
/* Ensure that the k_mem_slab's slabs are large enough for the
|
|
* specified block size
|
|
*/
|
|
if (config.block_size > config.mem_slab->info.block_size) {
|
|
goto out;
|
|
}
|
|
|
|
ret = z_impl_i2s_configure((const struct device *)dev, dir, &config);
|
|
out:
|
|
return ret;
|
|
}
|
|
#include <syscalls/i2s_configure_mrsh.c>
|
|
|
|
static inline int z_vrfy_i2s_buf_read(const struct device *dev,
|
|
void *buf, size_t *size)
|
|
{
|
|
void *mem_block;
|
|
size_t data_size;
|
|
int ret;
|
|
|
|
K_OOPS(K_SYSCALL_DRIVER_I2S(dev, read));
|
|
|
|
ret = i2s_read((const struct device *)dev, &mem_block, &data_size);
|
|
|
|
if (!ret) {
|
|
const struct i2s_config *rx_cfg;
|
|
int copy_success;
|
|
|
|
/* Presumed to be configured otherwise the i2s_read() call
|
|
* would have failed.
|
|
*/
|
|
rx_cfg = i2s_config_get((const struct device *)dev, I2S_DIR_RX);
|
|
|
|
copy_success = k_usermode_to_copy((void *)buf, mem_block,
|
|
data_size);
|
|
|
|
k_mem_slab_free(rx_cfg->mem_slab, mem_block);
|
|
K_OOPS(copy_success);
|
|
K_OOPS(k_usermode_to_copy((void *)size, &data_size,
|
|
sizeof(data_size)));
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
#include <syscalls/i2s_buf_read_mrsh.c>
|
|
|
|
static inline int z_vrfy_i2s_buf_write(const struct device *dev,
|
|
void *buf, size_t size)
|
|
{
|
|
int ret;
|
|
const struct i2s_config *tx_cfg;
|
|
void *mem_block;
|
|
|
|
K_OOPS(K_SYSCALL_DRIVER_I2S(dev, write));
|
|
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;
|
|
}
|
|
|
|
ret = k_usermode_from_copy(mem_block, (void *)buf, size);
|
|
if (ret) {
|
|
k_mem_slab_free(tx_cfg->mem_slab, mem_block);
|
|
K_OOPS(ret);
|
|
}
|
|
|
|
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;
|
|
}
|
|
#include <syscalls/i2s_buf_write_mrsh.c>
|
|
|
|
static inline int z_vrfy_i2s_trigger(const struct device *dev,
|
|
enum i2s_dir dir,
|
|
enum i2s_trigger_cmd cmd)
|
|
{
|
|
K_OOPS(K_SYSCALL_DRIVER_I2S(dev, trigger));
|
|
|
|
return z_impl_i2s_trigger((const struct device *)dev, dir, cmd);
|
|
}
|
|
#include <syscalls/i2s_trigger_mrsh.c>
|