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58 lines
2.0 KiB
C++
58 lines
2.0 KiB
C++
#pragma once
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#include <RH_RF95.h>
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#include <RHMesh.h>
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#include "MemoryPool.h"
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#include "mesh.pb.h"
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#include "PointerQueue.h"
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#include "MeshTypes.h"
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#define MAX_TX_QUEUE 16 // max number of packets which can be waiting for transmission
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/**
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* A version of the RF95 driver which is smart enough to manage packets via queues (no polling or blocking in user threads!)
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*/
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class CustomRF95 : public RH_RF95
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{
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friend class MeshRadio; // for debugging we let that class touch pool
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MemoryPool<MeshPacket> &pool;
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PointerQueue<MeshPacket> &rxDest;
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PointerQueue<MeshPacket> txQueue;
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MeshPacket *sendingPacket; // The packet we are currently sending
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public:
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/** pool is the pool we will alloc our rx packets from
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* rxDest is where we will send any rx packets, it becomes receivers responsibility to return packet to the pool
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*/
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CustomRF95(MemoryPool<MeshPacket> &pool, PointerQueue<MeshPacket> &rxDest);
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/**
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* Return true if we think the board can go to sleep (i.e. our tx queue is empty, we are not sending or receiving)
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*
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* This method must be used before putting the CPU into deep or light sleep.
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*/
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bool canSleep();
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/// Prepare hardware for sleep. Call this _only_ for deep sleep, not needed for light sleep.
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virtual bool sleep();
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/// Send a packet (possibly by enquing in a private fifo). This routine will
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/// later free() the packet to pool. This routine is not allowed to stall because it is called from
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/// bluetooth comms code. If the txmit queue is empty it might return an error
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ErrorCode send(MeshPacket *p);
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bool init();
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protected:
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// After doing standard behavior, check to see if a new packet arrived or one was sent and start a new send or receive as necessary
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virtual void handleInterrupt();
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private:
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/// Send a new packet - this low level call can be called from either ISR or userspace
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void startSend(MeshPacket *txp);
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/// Return true if a higher pri task has woken
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bool handleIdleISR();
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}; |