drivers: watchdog: add WDT shell commands
Add shell commands to setup, disable, install timeout and feed a watchdog device. These commands reflect watchdog API. Signed-off-by: Benjamin Lemouzy <blemouzy@centralp.fr>
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4 changed files with 201 additions and 0 deletions
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@ -44,5 +44,6 @@ zephyr_library_sources_ifdef(CONFIG_WDT_DW wdt_dw.c wdt_dw_common.c)
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zephyr_library_sources_ifdef(CONFIG_WDT_INTEL_ADSP wdt_intel_adsp.c wdt_dw_common.c)
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zephyr_library_sources_ifdef(CONFIG_WDT_ANDES_ATCWDT200 wdt_andes_atcwdt200.c)
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zephyr_library_sources_ifdef(CONFIG_WDT_NXP_FS26 wdt_nxp_fs26.c)
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zephyr_library_sources_ifdef(CONFIG_WDT_SHELL wdt_shell.c)
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zephyr_library_sources_ifdef(CONFIG_USERSPACE wdt_handlers.c)
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@ -118,4 +118,6 @@ source "drivers/watchdog/Kconfig.nxp_fs26"
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source "drivers/watchdog/Kconfig.ambiq"
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source "drivers/watchdog/Kconfig.shell"
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endif # WATCHDOG
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9
drivers/watchdog/Kconfig.shell
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9
drivers/watchdog/Kconfig.shell
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@ -0,0 +1,9 @@
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# Copyright (c) 2023 Centralp
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# SPDX-License-Identifier: Apache-2.0
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config WDT_SHELL
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bool "Watchdog (WDT) shell"
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default y
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depends on SHELL
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help
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Enable WDT shell.
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189
drivers/watchdog/wdt_shell.c
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189
drivers/watchdog/wdt_shell.c
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@ -0,0 +1,189 @@
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/*
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* Copyright (c) 2023 Centralp
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#include <zephyr/shell/shell.h>
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#include <zephyr/drivers/watchdog.h>
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#define WDT_SETUP_HELP \
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"Set up watchdog instance. Syntax:\n" \
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"<device>"
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#define WDT_DISABLE_HELP \
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"Disable watchdog instance. Syntax:\n" \
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"<device>"
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#define WDT_TIMEOUT_HELP \
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"Install a new timeout. Syntax:\n" \
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"<device> <none|cpu|soc> <min_ms> <max_ms>"
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#define WDT_FEED_HELP \
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"Feed specified watchdog timeout. Syntax:\n" \
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"<device> <channel_id>"
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static const char *const wdt_reset_name[] = {
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[WDT_FLAG_RESET_NONE] = "none",
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[WDT_FLAG_RESET_CPU_CORE] = "cpu",
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[WDT_FLAG_RESET_SOC] = "soc",
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};
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struct args_index {
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uint8_t device;
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uint8_t reset;
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uint8_t timeout_min;
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uint8_t timeout_max;
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uint8_t channel_id;
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};
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static const struct args_index args_indx = {
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.device = 1,
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.reset = 2,
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.timeout_min = 3,
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.timeout_max = 4,
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.channel_id = 2,
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};
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static int parse_named_int(const char *name, const char *const keystack[], size_t count)
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{
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char *endptr;
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int i;
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/* Attempt to parse name as a number first */
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i = strtoul(name, &endptr, 0);
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if (*endptr == '\0') {
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return i;
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}
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/* Name is not a number, look it up */
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for (i = 0; i < count; i++) {
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if (strcmp(name, keystack[i]) == 0) {
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return i;
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}
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}
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return -ENOTSUP;
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}
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static int cmd_setup(const struct shell *sh, size_t argc, char *argv[])
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{
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const struct device *dev;
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dev = device_get_binding(argv[args_indx.device]);
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if (!dev) {
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shell_error(sh, "WDT device not found");
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return -ENODEV;
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}
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return wdt_setup(dev, 0);
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}
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static int cmd_disable(const struct shell *sh, size_t argc, char *argv[])
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{
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const struct device *dev;
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dev = device_get_binding(argv[args_indx.device]);
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if (!dev) {
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shell_error(sh, "WDT device not found");
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return -ENODEV;
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}
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return wdt_disable(dev);
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}
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static int cmd_timeout(const struct shell *sh, size_t argc, char *argv[])
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{
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const struct device *dev;
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int flags;
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int timeout_min;
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int timeout_max;
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struct wdt_timeout_cfg cfg;
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int rc;
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dev = device_get_binding(argv[args_indx.device]);
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if (!dev) {
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shell_error(sh, "WDT device not found");
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return -ENODEV;
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}
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flags = parse_named_int(argv[args_indx.reset], wdt_reset_name, ARRAY_SIZE(wdt_reset_name));
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if (flags < 0) {
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shell_error(sh, "Reset mode '%s' unknown", argv[args_indx.reset]);
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return -EINVAL;
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}
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timeout_min = parse_named_int(argv[args_indx.timeout_min], NULL, 0);
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if (timeout_min < 0) {
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shell_error(sh, "Unable to convert '%s' to integer", argv[args_indx.timeout_min]);
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return -EINVAL;
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}
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timeout_max = parse_named_int(argv[args_indx.timeout_max], NULL, 0);
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if (timeout_max < 0) {
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shell_error(sh, "Unable to convert '%s' to integer", argv[args_indx.timeout_max]);
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return -EINVAL;
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}
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cfg.window.min = timeout_min;
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cfg.window.max = timeout_max;
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cfg.callback = NULL;
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cfg.flags = flags;
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rc = wdt_install_timeout(dev, &cfg);
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if (rc >= 0) {
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shell_print(sh, "Channel ID = %d", rc);
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}
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return rc;
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}
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static int cmd_feed(const struct shell *sh, size_t argc, char *argv[])
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{
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const struct device *dev;
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int channel_id;
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dev = device_get_binding(argv[args_indx.device]);
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if (!dev) {
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shell_error(sh, "WDT device not found");
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return -ENODEV;
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}
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channel_id = parse_named_int(argv[args_indx.channel_id], NULL, 0);
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if (channel_id < 0) {
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shell_error(sh, "Unable to convert '%s' to integer", argv[args_indx.channel_id]);
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return -EINVAL;
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}
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return wdt_feed(dev, channel_id);
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}
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/* Device name autocompletion support */
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static void device_name_get(size_t idx, struct shell_static_entry *entry)
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{
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const struct device *dev = shell_device_lookup(idx, NULL);
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entry->syntax = (dev != NULL) ? dev->name : NULL;
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entry->handler = NULL;
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entry->help = NULL;
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entry->subcmd = NULL;
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}
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SHELL_DYNAMIC_CMD_CREATE(dsub_device_name, device_name_get);
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/* clang-format off */
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SHELL_STATIC_SUBCMD_SET_CREATE(sub_wdt,
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SHELL_CMD_ARG(setup, &dsub_device_name, WDT_SETUP_HELP, cmd_setup,
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2, 0),
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SHELL_CMD_ARG(disable, &dsub_device_name, WDT_DISABLE_HELP, cmd_disable,
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2, 0),
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SHELL_CMD_ARG(timeout, &dsub_device_name, WDT_TIMEOUT_HELP, cmd_timeout,
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5, 0),
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SHELL_CMD_ARG(feed, &dsub_device_name, WDT_FEED_HELP, cmd_feed,
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3, 0),
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SHELL_SUBCMD_SET_END
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);
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/* clang-format on */
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SHELL_CMD_REGISTER(wdt, &sub_wdt, "Watchdog commands", NULL);
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