blob: 8201f3ce3295c71c96bd89766883500ae7604d8f [file] [log] [blame]
/*
* Shell backend used for testing
*
* Copyright (c) 2018 Nordic Semiconductor ASA
*
* SPDX-License-Identifier: Apache-2.0
*/
#include <zephyr/shell/shell_dummy.h>
#include <zephyr/init.h>
SHELL_DUMMY_DEFINE(shell_transport_dummy);
SHELL_DEFINE(shell_dummy, CONFIG_SHELL_PROMPT_DUMMY, &shell_transport_dummy, 256,
0, SHELL_FLAG_OLF_CRLF);
static int init(const struct shell_transport *transport,
const void *config,
shell_transport_handler_t evt_handler,
void *context)
{
struct shell_dummy *sh_dummy = (struct shell_dummy *)transport->ctx;
if (sh_dummy->initialized) {
return -EINVAL;
}
sh_dummy->initialized = true;
return 0;
}
static int uninit(const struct shell_transport *transport)
{
struct shell_dummy *sh_dummy = (struct shell_dummy *)transport->ctx;
if (!sh_dummy->initialized) {
return -ENODEV;
}
sh_dummy->initialized = false;
return 0;
}
static int enable(const struct shell_transport *transport, bool blocking)
{
struct shell_dummy *sh_dummy = (struct shell_dummy *)transport->ctx;
if (!sh_dummy->initialized) {
return -ENODEV;
}
return 0;
}
static int write(const struct shell_transport *transport,
const void *data, size_t length, size_t *cnt)
{
struct shell_dummy *sh_dummy = (struct shell_dummy *)transport->ctx;
size_t store_cnt;
if (!sh_dummy->initialized) {
*cnt = 0;
return -ENODEV;
}
store_cnt = length;
if (sh_dummy->len + store_cnt >= sizeof(sh_dummy->buf)) {
store_cnt = sizeof(sh_dummy->buf) - sh_dummy->len - 1;
}
memcpy(sh_dummy->buf + sh_dummy->len, data, store_cnt);
sh_dummy->len += store_cnt;
*cnt = length;
return 0;
}
static int read(const struct shell_transport *transport,
void *data, size_t length, size_t *cnt)
{
struct shell_dummy *sh_dummy = (struct shell_dummy *)transport->ctx;
if (!sh_dummy->initialized) {
return -ENODEV;
}
*cnt = 0;
return 0;
}
const struct shell_transport_api shell_dummy_transport_api = {
.init = init,
.uninit = uninit,
.enable = enable,
.write = write,
.read = read
};
static int enable_shell_dummy(void)
{
bool log_backend = CONFIG_SHELL_DUMMY_INIT_LOG_LEVEL > 0;
uint32_t level = (CONFIG_SHELL_DUMMY_INIT_LOG_LEVEL > LOG_LEVEL_DBG) ?
CONFIG_LOG_MAX_LEVEL : CONFIG_SHELL_DUMMY_INIT_LOG_LEVEL;
static const struct shell_backend_config_flags cfg_flags =
SHELL_DEFAULT_BACKEND_CONFIG_FLAGS;
shell_init(&shell_dummy, NULL, cfg_flags, log_backend, level);
return 0;
}
SYS_INIT(enable_shell_dummy, POST_KERNEL, 0);
const struct shell *shell_backend_dummy_get_ptr(void)
{
return &shell_dummy;
}
const char *shell_backend_dummy_get_output(const struct shell *sh,
size_t *sizep)
{
struct shell_dummy *sh_dummy = (struct shell_dummy *)sh->iface->ctx;
sh_dummy->buf[sh_dummy->len] = '\0';
*sizep = sh_dummy->len;
sh_dummy->len = 0;
return sh_dummy->buf;
}
void shell_backend_dummy_clear_output(const struct shell *sh)
{
struct shell_dummy *sh_dummy = (struct shell_dummy *)sh->iface->ctx;
sh_dummy->buf[0] = '\0';
sh_dummy->len = 0;
}