kopia lustrzana https://github.com/bristol-seds/pico-tracker
57 wiersze
1.9 KiB
C
57 wiersze
1.9 KiB
C
/*
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* Records and retreives backlog points from memory
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* Copyright (C) 2015 Richard Meadows <richardeoin>
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*
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* Permission is hereby granted, free of charge, to any person obtaining
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* a copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sublicense, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice shall be
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* included in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/
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#ifndef BACKLOG_H
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#define BACKLOG_H
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#include "samd20.h"
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#include "data.h"
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/**
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* How many things we store in our backlog.
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*
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* Should be a power of two because of fractal retreival algorithm
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* 256 @ 1 / hour = 10 days 16 hours
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*/
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#define BACKLOG_COUNT_BITS 8
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#define BACKLOG_COUNT 256
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/**
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* How many bytes each memory record uses
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*/
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#define BACKLOG_ITEM_SIZE 0x100 /* Currently one backlog per page */
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#define BACKLOGS_PER_SECTOR 16
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/**
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* Address offset in memory
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*/
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#define BACKLOG_ADDRESS 0
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/**
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* Defines the number of backlogs that should be valid before we start replaying
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*/
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#define BACKLOG_REPLAY_THRESHOLD 24 /* One day */
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void record_backlog(tracker_datapoint* dp);
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struct tracker_datapoint* get_backlog(void);
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#endif
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