| /* |
| * 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, 1, |
| 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(const struct device *arg) |
| { |
| ARG_UNUSED(arg); |
| static const struct shell_backend_config_flags cfg_flags = |
| SHELL_DEFAULT_BACKEND_CONFIG_FLAGS; |
| shell_init(&shell_dummy, NULL, cfg_flags, true, LOG_LEVEL_INF); |
| 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 *shell, |
| size_t *sizep) |
| { |
| struct shell_dummy *sh_dummy = (struct shell_dummy *)shell->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 *shell) |
| { |
| struct shell_dummy *sh_dummy = (struct shell_dummy *)shell->iface->ctx; |
| |
| sh_dummy->buf[0] = '\0'; |
| sh_dummy->len = 0; |
| } |