Files
MySensors/core/MyHw.h
T
Embedded Innovation 99973a346e Add nRF24 receive message buffering (#538)
* Add critical section support

Allows defining a code block which is executed as a critical section.
Supports AVR, ESP8266 & SAMD.

* Add receive message buffering

When MY_RF24_IRQ_PIN is defined (and connected), a buffer will be used
to retrieve & store messages received by nRF24 as fast as possible.
This reduces the chance of losing messages due to a busy
microcontroller.
nRF24 SPI rx message transfer is running from interrupt context when
MY_RF24_IRQ_PIN is defined. If this transfer takes too long, serial
characters received will get lost. Therefore serial rx is enabled during
SPI transfer of nRF messages.

Limitations: Only AVR/SAMD & nRF24L01+ combinations can buffer rx
messages.
nRF24L01+ IRQ pin should be connected to AVR.
Tested on W5100- & Serial-gateway.

SAMD has not been tested yet!

* Fix Doxygen warnings

* Fix more Doxygen warnings
2016-08-02 22:20:25 +02:00

115 lines
3.5 KiB
C

/*
* The MySensors Arduino library handles the wireless radio link and protocol
* between your home built sensors/actuators and HA controller of choice.
* The sensors forms a self healing radio network with optional repeaters. Each
* repeater and gateway builds a routing tables in EEPROM which keeps track of the
* network topology allowing messages to be routed to nodes.
*
* Created by Henrik Ekblad <henrik.ekblad@mysensors.org>
* Copyright (C) 2013-2015 Sensnology AB
* Full contributor list: https://github.com/mysensors/Arduino/graphs/contributors
*
* Documentation: http://www.mysensors.org
* Support Forum: http://forum.mysensors.org
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* version 2 as published by the Free Software Foundation.
*/
/**
* @file MyHw.h
*
* MySensors hardware abstraction layer
*/
#ifndef MyHw_h
#define MyHw_h
#include "MyConfig.h"
#include "MyMessage.h"
#ifdef __cplusplus
#include <Arduino.h>
#endif
// Implement these as functions or macros
/*
#define hwDigitalWrite(__pin, __value)
#define hwInit() MY_SERIALDEVICE.begin(BAUD_RATE)
#define hwWatchdogReset() wdt_reset()
#define hwReboot() wdt_enable(WDTO_15MS); while (1)
#define hwMillis() millis()
void hwReadConfigBlock(void* buf, void* adr, size_t length);
void hwWriteConfigBlock(void* buf, void* adr, size_t length);
void hwWriteConfig(int adr, uint8_t value);
uint8_t hwReadConfig(int adr);
*/
/**
* Sleep for a defined time, using minimum power.
* @param ms Time to sleep, in [ms].
* @return Nonsense, please ignore.
*/
int8_t hwSleep(unsigned long ms);
/**
* Sleep for a defined time, using minimum power, or until woken by interrupt.
* @param interrupt Interrupt number, which can wake the mcu from sleep.
* @param mode Interrupt mode, as passed to attachInterrupt.
* @param ms Time to sleep, in [ms].
* @return -1 when woken by timer, or interrupt number when woken by interrupt.
*/
int8_t hwSleep(uint8_t interrupt, uint8_t mode, unsigned long ms);
/**
* Sleep for a defined time, using minimum power, or until woken by one of the interrupts.
* @param interrupt1 Interrupt1 number, which can wake the mcu from sleep.
* @param mode1 Interrupt1 mode, as passed to attachInterrupt.
* @param interrupt2 Interrupt2 number, which can wake the mcu from sleep.
* @param mode2 Interrupt2 mode, as passed to attachInterrupt.
* @param ms Time to sleep, in [ms].
* @return -1 when woken by timer, or interrupt number when woken by interrupt.
*/
int8_t hwSleep(uint8_t interrupt1, uint8_t mode1, uint8_t interrupt2, uint8_t mode2, unsigned long ms);
#ifdef MY_DEBUG
void hwDebugPrint(const char *fmt, ... );
#endif
/**
* @def MY_CRITICAL_SECTION
* @brief Creates a block of code that is guaranteed to be executed atomically.
* Upon entering the block all interrupts are disabled, and re-enabled upon
* exiting the block from any exit path.
* A typical example that requires atomic access is a 16 (or more) bit variable
* that is shared between the main execution path and an ISR, on an 8-bit
* platform (e.g AVR):
* @code
* volatile uint16_t val = 0;
*
* void interrupHandler()
* {
* val = ~val;
* }
*
* void loop()
* {
* uint16_t copy_val;
* MY_CRITICAL_SECTION
* {
* copy_val = val;
* }
* }
* @endcode
* All code within the MY_CRITICAL_SECTION block will be protected from being
* interrupted during execution.
*/
#ifdef DOXYGEN
#define MY_CRITICAL_SECTION
#endif /* DOXYGEN */
#endif // #ifdef MyHw_h