task_wdt: add shell

add shell for task_wdt

Signed-off-by: Fin Maaß <f.maass@vogl-electronic.com>

subsys/task_wdt/CMakeLists.txt

@@ -1,3 +1,4 @@
 # SPDX-License-Identifier: Apache-2.0
 
 zephyr_sources_ifdef(CONFIG_TASK_WDT task_wdt.c)
+zephyr_sources_ifdef(CONFIG_TASK_WDT_SHELL task_wdt_shell.c)

subsys/task_wdt/Kconfig

@@ -58,4 +58,10 @@ config TASK_WDT_HW_FALLBACK_DELAY
 	  kernel timer. This is especially important if the hardware watchdog
 	  is clocked by an inaccurate low-speed RC oscillator.
 
+config TASK_WDT_SHELL
+	bool "Task watchdog shell utilities"
+	depends on SHELL
+	help
+	  Activate shell module that provides Task watchdog commands.
+
 endif

subsys/task_wdt/task_wdt_shell.c

@@ -0,0 +1,109 @@
+/*
+ * Copyright (c) 2024 Vogl Electronic GmbH
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+#include <stdlib.h>
+#include <zephyr/device.h>
+#include <zephyr/shell/shell.h>
+#include <zephyr/task_wdt/task_wdt.h>
+
+static int cmd_init(const struct shell *sh, size_t argc, char *argv)
+{
+	ARG_UNUSED(argc);
+	ARG_UNUSED(argv);
+
+#ifdef CONFIG_TASK_WDT_HW_FALLBACK
+	const struct device *const wdt = DEVICE_DT_GET(DT_ALIAS(watchdog0));
+#else
+	const struct device *const wdt = NULL;
+#endif
+
+	shell_fprintf(sh, SHELL_INFO, "Init task watchdog ...\n");
+
+	int ret = task_wdt_init(wdt);
+
+	if (ret < 0) {
+		shell_fprintf(sh, SHELL_ERROR, "Failed to init task watchdog: %d\n", ret);
+		return ret;
+	}
+
+	return 0;
+}
+
+static int cmd_add(const struct shell *sh, size_t argc, char **argv)
+{
+	if (argc != 2) {
+		shell_fprintf(sh, SHELL_ERROR, "Invalid number of arguments\n");
+		return -EINVAL;
+	}
+
+	shell_fprintf(sh, SHELL_INFO, "Add task watchdog channel\n");
+
+	uint32_t period = atoi(argv[1]) * MSEC_PER_SEC;
+
+	int ret = task_wdt_add(period, NULL, NULL);
+
+	if (ret < 0) {
+		shell_fprintf(sh, SHELL_ERROR, "Failed to add task watchdog channel: %d\n", ret);
+		return ret;
+	}
+
+	shell_fprintf(sh, SHELL_INFO, "Task watchdog channel: %d\n", ret);
+
+	shell_fprintf(sh, SHELL_NORMAL,
+		      "Use \"task_wdt feed %d\" to feed this channel\n"
+		      "and \"task_wdt del %d\" to delete this channel\n",
+		      ret, ret);
+
+	return 0;
+}
+
+static int cmd_feed(const struct shell *sh, size_t argc, char **argv)
+{
+	if (argc != 2) {
+		shell_fprintf(sh, SHELL_ERROR, "Invalid number of arguments\n");
+		return -EINVAL;
+	}
+
+	shell_fprintf(sh, SHELL_INFO, "Feed task watchdog channel %s\n", argv[1]);
+
+	int ret = task_wdt_feed(atoi(argv[1]));
+
+	if (ret < 0) {
+		shell_fprintf(sh, SHELL_ERROR, "Failed to add task watchdog channel: %d\n", ret);
+		return ret;
+	}
+
+	return 0;
+}
+
+static int cmd_del(const struct shell *sh, size_t argc, char **argv)
+{
+	if (argc != 2) {
+		shell_fprintf(sh, SHELL_ERROR, "Invalid number of arguments\n");
+		return -EINVAL;
+	}
+
+	shell_fprintf(sh, SHELL_INFO, "Delete task watchdog channel %s\n", argv[1]);
+
+	int ret = task_wdt_delete(atoi(argv[1]));
+
+	if (ret < 0) {
+		shell_fprintf(sh, SHELL_ERROR, "Failed to delete task watchdog channel: %d\n", ret);
+		return ret;
+	}
+
+	return 0;
+}
+
+SHELL_STATIC_SUBCMD_SET_CREATE(
+	sub_task_wdt,
+	SHELL_CMD(init, NULL, "Initialize task watchdog", cmd_init),
+	SHELL_CMD(add, NULL, "Install new timeout (time in seconds)", cmd_add),
+	SHELL_CMD(feed, NULL, "Feed specified watchdog channel", cmd_feed),
+	SHELL_CMD(del, NULL, "Delete task watchdog channel", cmd_del),
+	SHELL_SUBCMD_SET_END);
+
+SHELL_CMD_REGISTER(task_wdt, &sub_task_wdt, "Task watchdog commands", NULL);