utils.h

/* OpenSprinkler Unified (AVR/RPI/BBB/LINUX) Firmware
 * Copyright (C) 2015 by Ray Wang (ray@opensprinkler.com)
 *
 * Utility functions header file
 * Feb 2015 @ OpenSprinkler.com
 *
 * This file is part of the OpenSprinkler library
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see
 * <http://www.gnu.org/licenses/>. 
 */

#ifndef _UTILS_H
#define _UTILS_H

#if defined(ARDUINO)
	#include <Arduino.h>
#else // headers for RPI/BBB
	#include <stdio.h>
	#include <limits.h>
	#include <sys/time.h>

#endif
#include "defines.h"

// File reading/writing functions
void write_to_file(const char *fname, const char *data, ulong size, ulong pos=0, bool trunc=true);
void read_from_file(const char *fname, char *data, ulong maxsize=TMP_BUFFER_SIZE, int pos=0);
void remove_file(const char *fname);
bool file_exists(const char *fname);

void file_read_block (const char *fname, void *dst, ulong pos, ulong len);
void file_write_block(const char *fname, const void *src, ulong pos, ulong len);
void file_copy_block (const char *fname, ulong from, ulong to, ulong len, void *tmp=0);
byte file_read_byte (const char *fname, ulong pos);
void file_write_byte(const char *fname, ulong pos, byte v);  
byte file_cmp_block(const char *fname, const char *buf, ulong pos);

// misc. string and time converstion functions
void strncpy_P0(char* dest, const char* src, int n);
ulong water_time_resolve(uint16_t v);
byte water_time_encode_signed(int16_t i);
int16_t water_time_decode_signed(byte i);
void urlDecode(char *);
void peel_http_header(char*);

#if defined(ARDUINO)

#else // Arduino compatible functions for RPI/BBB
	char* get_runtime_path();
	void delay(ulong ms);
	void delayMicroseconds(ulong us);
	void delayMicrosecondsHard(ulong us);
	ulong millis();
	ulong micros();
	void initialiseEpoch();
	#if defined(OSPI)
	unsigned int detect_rpi_rev();
	#endif

#endif

#endif // _UTILS_H