pdock 60 test task
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#ifndef GS_UTIL_WATCHDOG_WATCHDOG_H
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#define GS_UTIL_WATCHDOG_WATCHDOG_H
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/* Copyright (c) 2013-2017 GomSpace A/S. All rights reserved. */
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/**
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@file
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Software watchdog client interface.
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The software watchdog (SWWD) enables having multiple instances of a Watchdog.
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The software watchdog manages the HW watchdog, and will ultimately
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trigger the HW watchdog, if one or more clients are not servicing the
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software watchdog.
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*/
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#include <gs/util/drivers/watchdog/device.h>
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#include <gs/util/log.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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/**
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Software Watchdog handle
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*/
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typedef struct gs_swwd_hdl gs_swwd_hdl_t;
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/**
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Software watchdog callback function.
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Called by the SWWD upon timeout.
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@param[in] userdata user data provided on gs_swwd_register()
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*/
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typedef void (*gs_swwd_callback_function_t)(void * userdata);
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/**
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Watchdog timeout action.
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*/
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typedef enum {
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/**
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Reset system on timeout (stops touching the hardware watchdog).
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Once the watchdog has timeout, the watchdog cannot be re-activated.
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*/
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GS_SWWD_TIMEOUT_ACTION_RESET = 0,
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/**
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Log 'warning' on timeout, but otherwise ignore the timeout.
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The watchdog can re-activated by touching the watchdog again.
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*/
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GS_SWWD_TIMEOUT_ACTION_LOG = 1,
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} gs_swwd_timeout_action_t;
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/**
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Create the software watchdog back-end.
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Only one SWWD back-end can exist at any given time.
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@param[in] max_clients The maximum number of Software Watchog clients supported.
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@param[in] dev The HW Watchdog device to use.
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@return_gs_error_t
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*/
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gs_error_t gs_swwd_create(uint32_t max_clients, gs_watchdog_device_t *dev);
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/**
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Destroy the Software Watchdog back-end (and stop the SWWD monitor task if started).
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@param[in] timeout_s Maximum number of seconds to allow this operation to complete.
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@return_gs_error_t
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*/
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gs_error_t gs_swwd_destroy(uint32_t timeout_s);
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/**
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Check for expired software watchdog clients. This function is only to be used if the
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SWWD monitor task is not started. Otherwise the SWWD task will handle this in the back-
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ground. I.e:
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- In passive mode this function must be called periodically to check for expired
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clients, and service the HW watchdog.
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- In active mode this function is called in background by the SWWD monitor task.
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The interval between these checks should be much less that the HW watchdog
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timeout period, to ensure that the HW Watchdog is correctly serviced.
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Calling this e.g. every 1-3 seconds will be a good default.
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@param[out] num_expired The number of SW Watchog clients currently expired.
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@return_gs_error_t
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*/
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gs_error_t gs_swwd_check_expired_clients(uint32_t *num_expired);
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/**
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Register/create a new software watchdog instance
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@param[out] wdt_handle A reference to software watchdog handle
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@param[in] timeout Timeout in seconds.
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@param[in] callback Callback function which is called on timeout. NULL if unused.
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@param[in] userdata Pointer to user data used in the callback function. Ignored if callback is NULL.
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@param[in] client_name A descriptive name given by the user in order to identify the watchdog/client - the pointer must remain valid as long as the watchdog is registered.
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@param[in] action what action to take, when/if the watchdog times out.
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@return_gs_error_t
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*/
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gs_error_t gs_swwd_register_with_action(gs_swwd_hdl_t ** wdt_handle, uint32_t timeout, gs_swwd_callback_function_t callback, void * userdata, const char *client_name, gs_swwd_timeout_action_t action);
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/**
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Register/create a software watchdog with action \a reset on timeout.
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@param[out] wdt_handle A reference to software watchdog handle
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@param[in] timeout Timeout in seconds before the software watchdog fires.
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@param[in] callback Callback function which is called on timeout. NULL if unused.
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@param[in] userdata Pointer to user data used in the callback function. Ignored if callback is NULL.
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@param[in] client_name A descriptive name given by the user in order to identify the watchdog/client - the pointer must remain valid as long as the watchdog is registered.
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@return_gs_error_t
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*/
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static inline gs_error_t gs_swwd_register(gs_swwd_hdl_t ** wdt_handle, uint32_t timeout, gs_swwd_callback_function_t callback, void * userdata, const char *client_name)
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{
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return gs_swwd_register_with_action(wdt_handle, timeout, callback, userdata, client_name, GS_SWWD_TIMEOUT_ACTION_RESET);
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}
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/**
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De-Register a Software Watchdog instance
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@param[in] wdt_handle A software watchdog handle
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@return_gs_error_t
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*/
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gs_error_t gs_swwd_deregister(gs_swwd_hdl_t ** wdt_handle);
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/**
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Touch Software Watchdog to reset the timer
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@param[in] wdt_handle A software watchdog handle
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@return_gs_error_t
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*/
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gs_error_t gs_swwd_touch(gs_swwd_hdl_t * wdt_handle);
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/**
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Set timeout of the Software Watchdog.
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@param[in] wdt_handle A software watchdog handle
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@param[in] timeout Timeout in seconds before the SWWD fires.
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@return_gs_error_t
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*/
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gs_error_t gs_swwd_set_timeout(gs_swwd_hdl_t * wdt_handle, uint32_t timeout);
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#ifdef __cplusplus
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}
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#endif
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#endif
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@ -1,45 +0,0 @@
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#ifndef GS_UTIL_WATCHDOG_WATCHDOG_TASK_H
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#define GS_UTIL_WATCHDOG_WATCHDOG_TASK_H
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/* Copyright (c) 2013-2017 GomSpace A/S. All rights reserved. */
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/**
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@file
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Software Watchdog server/task interface
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The Software Watchdog task implements the core (backend) functionality of the the software watchdog.
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The Client API for the SW watchdog is implemented in watchdog.h
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@note This API is not thread safe!
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*/
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#include <gs/util/watchdog/watchdog.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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/**
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Start the Software Watchdog monitor task if the SWWD is to be used as a
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separate task (active mode).
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In this case the SWWD task will monitor expired clients in the background
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and the polling API gs_swwd_check_expired_clients() needs not to be called by
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the user.
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@return_gs_error_t
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*/
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gs_error_t gs_swwd_monitor_task_start();
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/**
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Stops the Software Watchdog monitor task
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@param[in] timeout_s Maximum number of seconds to allow this operation to complete.
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@return_gs_error_t
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*/
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gs_error_t gs_swwd_monitor_task_stop(uint32_t timeout_s);
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#ifdef __cplusplus
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}
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#endif
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#endif
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