Fork of the espurna firmware for `mhsw` switches
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#pragma once
// Base address of USER RTC memory
// https://github.com/esp8266/esp8266-wiki/wiki/Memory-Map#memmory-mapped-io-registers
#define RTCMEM_ADDR_BASE (0x60001200)
// RTC memory is accessed using blocks of 4 bytes.
// Blocks 0..63 are reserved by the SDK, 64..192 are available to the user.
// Blocks 64..96 are reserved by the eboot 'struct eboot_command' (128 -> (128 / 4) -> 32):
// https://github.com/esp8266/Arduino/blob/master/bootloaders/eboot/eboot_command.h
#define RTCMEM_OFFSET 32u
#define RTCMEM_ADDR (RTCMEM_ADDR_BASE + (RTCMEM_OFFSET * 4u))
#define RTCMEM_BLOCKS 96u
// Change this when modifying RtcmemData
#define RTCMEM_MAGIC 0x45535075
// XXX When using bitfields / inner structs / etc:
// ...
// uint32_t a : 8;
// uint32_t b : 8;
// uint32_t c : 8;
// uint32_t d : 8;
// ...
// mem->d = 4;
// At the same time writes 4 to the a, b and c
// TODO replace with custom memory segment in ldscript
struct RtcmemData {
uint32_t magic;
uint32_t sys;
uint32_t relay;
uint32_t mqtt;
uint64_t light;
double energy[4];
};
static_assert(sizeof(RtcmemData) <= (RTCMEM_BLOCKS * 4u), "RTCMEM struct is too big");
constexpr uint8_t RtcmemSize = (sizeof(RtcmemData) / 4u);
auto Rtcmem = reinterpret_cast<volatile RtcmemData*>(RTCMEM_ADDR);
bool rtcmemStatus();