mirror of
https://github.com/OpenEPaperLink/OpenEPaperLink.git
synced 2026-03-21 14:06:31 +01:00
52 lines
1.3 KiB
C
52 lines
1.3 KiB
C
#ifndef _EEPROM_H_
|
|
#define _EEPROM_H_
|
|
|
|
#include <stdbool.h>
|
|
#include <stdint.h>
|
|
|
|
#define EEPROM_WRITE_PAGE_SZ 256 //max write size & alignment
|
|
#define EEPROM_ERZ_SECTOR_SZ 4096 //erase size and alignment
|
|
|
|
//device has 256 sectors, so eepromErase() cannot erase thw whole device...i can live with that
|
|
|
|
__bit eepromInit(void);
|
|
void eepromOtpModeEnter(void);
|
|
void eepromOtpModeExit(void);
|
|
|
|
#pragma callee_saves eepromRead
|
|
void eepromRead(uint32_t addr, void __xdata *dst, uint16_t len) __reentrant;
|
|
|
|
#pragma callee_saves eepromWrite
|
|
bool eepromWrite(uint32_t addr, const void __xdata *src, uint16_t len) __reentrant;
|
|
|
|
#pragma callee_saves eepromErase
|
|
bool eepromErase(uint32_t addr, uint16_t numSectors) __reentrant;
|
|
|
|
void eepromDeepPowerDown(void);
|
|
|
|
#pragma callee_saves eepromGetSize
|
|
uint32_t eepromGetSize(void);
|
|
|
|
//this is for firmware update use
|
|
void eepromReadStart(uint32_t addr) __reentrant;
|
|
|
|
//structures
|
|
#define EEPROM_IMG_INPROGRESS (0x7fffffffUL)
|
|
#define EEPROM_IMG_VALID (0x494d4721UL)
|
|
#include "board.h"
|
|
|
|
struct EepromImageHeader { //each image space is 0x17000 bytes, we have space for ten of them
|
|
uint64_t version;
|
|
uint32_t validMarker;
|
|
uint32_t size;
|
|
uint8_t dataType;
|
|
uint32_t id;
|
|
|
|
//image data here
|
|
//we pre-erase so progress can be calculated by finding the first non-0xff byte
|
|
};
|
|
|
|
|
|
|
|
#endif
|