mirror of
https://bitbucket.org/librepilot/librepilot.git
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289 lines
8.4 KiB
C
289 lines
8.4 KiB
C
/**
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******************************************************************************
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* @addtogroup PIOS PIOS Core hardware abstraction layer
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* @{
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* @defgroup PIOS_DEBUGLOG Flash log debugging Functions
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* @brief Debugging functionality
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* @{
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*
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* @file pios_debuglog.c
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* @author The OpenPilot Team, http://www.openpilot.org Copyright (C) 2013.
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* @brief Debugging Functions
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* @see The GNU Public License (GPL) Version 3
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*
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*****************************************************************************/
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/*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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/* Project Includes */
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#include "pios.h"
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#include "uavobjectmanager.h"
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#include "debuglogentry.h"
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// global definitions
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#ifdef PIOS_INCLUDE_DEBUGLOG
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// Global variables
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extern uintptr_t pios_user_fs_id; // flash filesystem for logging
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#if defined(PIOS_INCLUDE_FREERTOS)
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static xSemaphoreHandle mutex = 0;
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#define mutexlock() xSemaphoreTakeRecursive(mutex, portMAX_DELAY)
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#define mutexunlock() xSemaphoreGiveRecursive(mutex)
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#else
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#define mutexlock()
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#define mutexunlock()
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#endif
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static bool logging_enabled = false;
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#define MAX_CONSECUTIVE_FAILS_COUNT 10
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static bool log_is_full = false;
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static uint8_t fails_count = 0;
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static uint16_t flightnum = 0;
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static uint16_t lognum = 0;
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static DebugLogEntryData *buffer = 0;
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#if !defined(PIOS_INCLUDE_FREERTOS)
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static DebugLogEntryData staticbuffer;
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#endif
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#define LOG_ENTRY_MAX_DATA_SIZE (sizeof(((DebugLogEntryData *)0)->Data))
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#define LOG_ENTRY_HEADER_SIZE (sizeof(DebugLogEntryData) - LOG_ENTRY_MAX_DATA_SIZE)
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// build the obj_id as a DEBUGLOGENTRY ID with least significant byte zeroed and filled with flight number
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#define LOG_GET_FLIGHT_OBJID(x) ((DEBUGLOGENTRY_OBJID & ~0xFF) | (x & 0xFF))
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static uint32_t used_buffer_space = 0;
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/* Private Function Prototypes */
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static void enqueue_data(uint32_t objid, uint16_t instid, size_t size, uint8_t *data);
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static bool write_current_buffer();
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/**
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* @brief Initialize the log facility
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*/
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void PIOS_DEBUGLOG_Initialize()
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{
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#if defined(PIOS_INCLUDE_FREERTOS)
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if (!mutex) {
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mutex = xSemaphoreCreateRecursiveMutex();
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buffer = pios_malloc(sizeof(DebugLogEntryData));
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}
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#else
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buffer = &staticbuffer;
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#endif
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if (!buffer) {
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return;
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}
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mutexlock();
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lognum = 0;
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flightnum = 0;
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fails_count = 0;
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used_buffer_space = 0;
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log_is_full = false;
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while (PIOS_FLASHFS_ObjLoad(pios_user_fs_id, LOG_GET_FLIGHT_OBJID(flightnum), lognum, (uint8_t *)buffer, sizeof(DebugLogEntryData)) == 0) {
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flightnum++;
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}
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mutexunlock();
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}
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/**
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* @brief Enables or Disables logging globally
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* @param[in] enable or disable logging
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*/
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void PIOS_DEBUGLOG_Enable(uint8_t enabled)
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{
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// increase the flight num as soon as logging is disabled
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if (logging_enabled && !enabled) {
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flightnum++;
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lognum = 0;
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}
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logging_enabled = enabled;
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}
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/**
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* @brief Write a debug log entry with a uavobject
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* @param[in] objectid
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* @param[in] instanceid
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* @param[in] instanceid
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* @param[in] size of object
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* @param[in] data buffer
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*/
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void PIOS_DEBUGLOG_UAVObject(uint32_t objid, uint16_t instid, size_t size, uint8_t *data)
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{
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if (!logging_enabled || !buffer || log_is_full) {
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return;
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}
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mutexlock();
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enqueue_data(objid, instid, size, data);
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mutexunlock();
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}
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/**
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* @brief Write a debug log entry with text
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* @param[in] format - as in printf
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* @param[in] variable arguments for printf
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* @param...
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*/
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void PIOS_DEBUGLOG_Printf(char *format, ...)
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{
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if (!logging_enabled || !buffer || log_is_full) {
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return;
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}
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va_list args;
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va_start(args, format);
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mutexlock();
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// flush any pending buffer before writing debug text
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if (used_buffer_space) {
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write_current_buffer();
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}
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memset(buffer->Data, 0xff, sizeof(buffer->Data));
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vsnprintf((char *)buffer->Data, sizeof(buffer->Data), (char *)format, args);
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buffer->Flight = flightnum;
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buffer->FlightTime = PIOS_DELAY_GetuS();
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buffer->Entry = lognum;
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buffer->Type = DEBUGLOGENTRY_TYPE_TEXT;
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buffer->ObjectID = 0;
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buffer->InstanceID = 0;
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buffer->Size = strlen((const char *)buffer->Data);
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if (PIOS_FLASHFS_ObjSave(pios_user_fs_id, LOG_GET_FLIGHT_OBJID(flightnum), lognum, (uint8_t *)buffer, sizeof(DebugLogEntryData)) == 0) {
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lognum++;
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}
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mutexunlock();
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}
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/**
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* @brief Load one object instance from the filesystem
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* @param[out] buffer where to store the uavobject
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* @param[in] log entry from which flight
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* @param[in] log entry sequence number
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* @return 0 if success or error code
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* @retval -1 if fs_id is not a valid filesystem instance
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* @retval -2 if failed to start transaction
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* @retval -3 if object not found in filesystem
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* @retval -4 if object size in filesystem does not exactly match buffer size
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* @retval -5 if reading the object data from flash fails
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*/
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int32_t PIOS_DEBUGLOG_Read(void *mybuffer, uint16_t flight, uint16_t inst)
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{
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PIOS_Assert(mybuffer);
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return PIOS_FLASHFS_ObjLoad(pios_user_fs_id, LOG_GET_FLIGHT_OBJID(flight), inst, (uint8_t *)mybuffer, sizeof(DebugLogEntryData));
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}
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/**
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* @brief Retrieve run time info of logging system
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* @param[out] current flight number
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* @param[out] next entry number
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* @param[out] free slots in filesystem
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* @param[out] used slots in filesystem
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*/
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void PIOS_DEBUGLOG_Info(uint16_t *flight, uint16_t *entry, uint16_t *free, uint16_t *used)
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{
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if (flight) {
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*flight = flightnum;
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}
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if (entry) {
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*entry = lognum;
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}
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struct PIOS_FLASHFS_Stats stats = { 0, 0 };
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PIOS_FLASHFS_GetStats(pios_user_fs_id, &stats);
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if (free) {
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*free = stats.num_free_slots;
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}
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if (used) {
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*used = stats.num_active_slots;
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}
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}
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/**
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* @brief Format entire flash memory!!!
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*/
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void PIOS_DEBUGLOG_Format(void)
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{
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mutexlock();
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PIOS_FLASHFS_Format(pios_user_fs_id);
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lognum = 0;
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flightnum = 0;
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log_is_full = false;
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fails_count = 0;
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used_buffer_space = 0;
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mutexunlock();
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}
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void enqueue_data(uint32_t objid, uint16_t instid, size_t size, uint8_t *data)
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{
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DebugLogEntryData *entry;
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// start a new block
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if (!used_buffer_space) {
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entry = buffer;
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memset(buffer->Data, 0xff, sizeof(buffer->Data));
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used_buffer_space += size;
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} else {
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// if an instance is being filled and there is enough space, does enqueues new data.
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if (used_buffer_space + size + LOG_ENTRY_HEADER_SIZE > LOG_ENTRY_MAX_DATA_SIZE) {
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buffer->Type = DEBUGLOGENTRY_TYPE_MULTIPLEUAVOBJECTS;
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if (!write_current_buffer()) {
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return;
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}
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entry = buffer;
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memset(buffer->Data, 0xff, sizeof(buffer->Data));
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used_buffer_space += size;
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} else {
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entry = (DebugLogEntryData *)&buffer->Data[used_buffer_space];
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used_buffer_space += size + LOG_ENTRY_HEADER_SIZE;
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}
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}
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entry->Flight = flightnum;
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entry->FlightTime = PIOS_DELAY_GetuS();
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entry->Entry = lognum;
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entry->Type = DEBUGLOGENTRY_TYPE_UAVOBJECT;
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entry->ObjectID = objid;
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entry->InstanceID = instid;
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if (size > sizeof(buffer->Data)) {
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size = sizeof(buffer->Data);
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}
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entry->Size = size;
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memcpy(entry->Data, data, size);
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}
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bool write_current_buffer()
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{
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// not enough space, write the block and start a new one
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if (PIOS_FLASHFS_ObjSave(pios_user_fs_id, LOG_GET_FLIGHT_OBJID(flightnum), lognum, (uint8_t *)buffer, sizeof(DebugLogEntryData)) == 0) {
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lognum++;
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fails_count = 0;
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used_buffer_space = 0;
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} else {
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if (fails_count++ > MAX_CONSECUTIVE_FAILS_COUNT) {
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log_is_full = true;
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}
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return false;
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}
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return true;
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}
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#endif /* ifdef PIOS_INCLUDE_DEBUGLOG */
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/**
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* @}
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* @}
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*/
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