firmware/src/MeshRadio.h
geeksville da74803ffb begin cleanup on radio abstraction, details below:
* to allow changing to new mesh transport
* to allow a different chipset for the radio
* to allow testing on hardware with a SimRadio
* new "bare" build env for a devboard with virtually no hardware
* make buttons optional
2020-03-31 21:56:35 -07:00

102 lines
3.1 KiB
C++

#pragma once
#include "CustomRF95.h"
#include "MemoryPool.h"
#include "MeshTypes.h"
#include "PointerQueue.h"
#include "configuration.h"
#include "mesh.pb.h"
#include <RHMesh.h>
// US channel settings
#define CH0_US 903.08f // MHz
#define CH_SPACING_US 2.16f // MHz
#define NUM_CHANNELS_US 13
// EU433 channel settings
#define CH0_EU433 433.175f // MHz
#define CH_SPACING_EU433 0.2f // MHz
#define NUM_CHANNELS_EU433 8
// EU865 channel settings
#define CH0_EU865 865.2f // MHz
#define CH_SPACING_EU865 0.3f // MHz
#define NUM_CHANNELS_EU865 10
// CN channel settings
#define CH0_CN 470.0f // MHz
#define CH_SPACING_CN 2.0f // MHz FIXME, this is just a guess for 470-510
#define NUM_CHANNELS_CN 20
// JP channel settings
#define CH0_JP 920.0f // MHz
#define CH_SPACING_JP 0.5f // MHz FIXME, this is just a guess for 920-925
#define NUM_CHANNELS_JP 10
// FIXME add defs for other regions and use them here
#ifdef HW_VERSION_US
#define CH0 CH0_US
#define CH_SPACING CH_SPACING_US
#define NUM_CHANNELS NUM_CHANNELS_US
#elif defined(HW_VERSION_EU433)
#define CH0 CH0_EU433
#define CH_SPACING CH_SPACING_EU433
#define NUM_CHANNELS NUM_CHANNELS_EU433
#elif defined(HW_VERSION_EU865)
#define CH0 CH0_EU865
#define CH_SPACING CH_SPACING_EU865
#define NUM_CHANNELS NUM_CHANNELS_EU865
#elif defined(HW_VERSION_CN)
#define CH0 CH0_CN
#define CH_SPACING CH_SPACING_CN
#define NUM_CHANNELS NUM_CHANNELS_CN
#elif defined(HW_VERSION_JP)
#define CH0 CH0_JP
#define CH_SPACING CH_SPACING_JP
#define NUM_CHANNELS NUM_CHANNELS_JP
#else
#error "HW_VERSION not set"
#endif
/**
* A raw low level interface to our mesh. Only understands nodenums and bytes (not protobufs or node ids)
*/
class MeshRadio
{
public:
// Kinda ugly way of selecting different radio implementations, but soon this MeshRadio class will be going away
// entirely. At that point we can make things pretty.
#ifdef RF95_IRQ_GPIO
CustomRF95
radioIf; // the raw radio interface - for now I'm leaving public - because this class is shrinking to be almost nothing
#else
SimRadio radioIf;
#endif
/** pool is the pool we will alloc our rx packets from
* rxDest is where we will send any rx packets, it becomes receivers responsibility to return packet to the pool
*/
MeshRadio(MemoryPool<MeshPacket> &pool, PointerQueue<MeshPacket> &rxDest);
bool init();
/// Send a packet (possibly by enquing in a private fifo). This routine will
/// later free() the packet to pool. This routine is not allowed to stall because it is called from
/// bluetooth comms code. If the txmit queue is empty it might return an error
ErrorCode send(MeshPacket *p);
/// Do loop callback operations (we currently FIXME poll the receive mailbox here)
/// for received packets it will call the rx handler
void loop();
/// The radioConfig object just changed, call this to force the hw to change to the new settings
void reloadConfig();
private:
// RHReliableDatagram manager; // don't use mesh yet
// RHMesh manager;
/// Used for the tx timer watchdog, to check for bugs in our transmit code, msec of last time we did a send
uint32_t lastTxStart = 0;
};