hand_acid_mainboard_bak/uappbase/zhdb/zhdb.cpp

#include "zhdb.hpp"

#include <stdint.h>

#include "apphardware\apphardware.hpp"
#include "ucomponents\eeprom\m24m02_i2c_eeprom.hpp"

uint8_t cache[50 * 1024] __attribute__((section(".ccmram")));

using namespace iflytop;

static zhdb_table_t table[MAX_TABLE_NUM];
static uint32_t     table_num     = 0;
static uint32_t     table_add_off = 0;
static zmutex       lock("ZHDB");

static void read_from_eeprom(uint32_t add, uint8_t* data, size_t size) {  //
  for (size_t i = 0; i < size; i += 256) {
    AppHardware::ins()->eeprom.read(add + i, data + i, 256);
  }
}

static void write_to_eeprom(uint32_t add, uint8_t* data, size_t size) {  //
  for (size_t i = 0; i < size; i += 256) {
    AppHardware::ins()->eeprom.write(add + i, data + i, 256);
  }
}

void ZHDB::init() { lock.init(); }

zhdb_table_t* ZHDB::allocTable(const char* name, size_t size) {
  if (table_num >= MAX_TABLE_NUM) {
    return NULL;
  }

  if (size % 256 != 0) {
    size = (size / 256 + 1) * 256;
  }

  //
  zhdb_table_t* table = &table[table_num];
  uint32_t      add   = table_add_off;

  table->add  = &cache[table_add_off];
  table->size = size;
  table->name = name;

  // read from eeprom
  read_from_eeprom(table_add_off, table->add, size);

  //
  table_add_off += size;
  table_num++;

  return table;
}
void ZHDB::storageData(uint8_t* data, size_t size) {
  zlock_guard guard(lock);

  //
  uint32_t off       = data - cache;
  uint32_t align_off = (off / 256) * 256;
  uint32_t real_size      = (size / 256 + 1) * 256;

  write_to_eeprom(align_off, &cache[align_off], real_size);
}