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https://github.com/OpenEPaperLink/OpenEPaperLink.git
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67 lines
2.1 KiB
C
Executable File
67 lines
2.1 KiB
C
Executable File
#ifndef _EEPROM_H_
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#define _EEPROM_H_
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#include <stdbool.h>
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#include <stdint.h>
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#define EEPROM_WRITE_PAGE_SZ 256 // max write size & alignment
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#define EEPROM_ERZ_SECTOR_SZ 4096 // erase size and alignment
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// device has 256 sectors, so eepromErase() cannot erase thw whole device...i can live with that
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__bit eepromInit(void);
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void eepromOtpModeEnter(void);
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void eepromOtpModeExit(void);
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#pragma callee_saves eepromRead
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void eepromRead(uint32_t addr, void __xdata *dst, uint16_t len) __reentrant;
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#pragma callee_saves eepromWrite
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bool eepromWrite(uint32_t addr, const void __xdata *src, uint16_t len) __reentrant;
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#pragma callee_saves eepromErase
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bool eepromErase(uint32_t addr, uint16_t numSectors) __reentrant;
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void eepromDeepPowerDown(void);
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#pragma callee_saves eepromGetSize
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uint32_t eepromGetSize(void);
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// this is for firmware update use
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void eepromReadStart(uint32_t addr) __reentrant;
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// structures
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#define EEPROM_IMG_INPROGRESS (0x7fffffffUL)
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//#define EEPROM_IMG_VALID (0x494d4721UL)
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#define EEPROM_IMG_VALID (0x474d4721UL)
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#include "board.h"
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struct EepromImageHeader { // each image space is 0x17000 bytes, we have space for ten of them
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uint64_t version;
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uint32_t validMarker;
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uint32_t size;
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uint8_t dataType;
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uint32_t id;
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uint8_t argument;
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// image data here
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// we pre-erase so progress can be calculated by finding the first non-0xff byte
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};
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#define CUSTOM_IMAGE_NOCUSTOM 0x00 // regular image type
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#define CUSTOM_IMAGE_SPLASHSCREEN 0x01 // will show at first boot/powerup
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#define CUSTOM_IMAGE_LOST_CONNECTION 0x02 // this image will be shown (if it exists on the tag) if the tag looses its connection
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#define CUSTOM_IMAGE_APFOUND 0x03 // this image will be shown during bootup if an AP was found
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#define CUSTOM_IMAGE_NOAPFOUND 0x04 // shown if during bootup no AP was found
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// UNUSED: 0x05-0x0F
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#define CUSTOM_IMAGE_SLIDESHOW 0x0F // image is part of a slideshow
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#define CUSTOM_IMAGE_BUTTON1 0x10
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#define CUSTOM_IMAGE_BUTTON2 0x11
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// UNUSED: 0x12 to 0x1C
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#define CUSTOM_IMAGE_GPIO 0x1D
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#define CUSTOM_IMAGE_NFC_WAKE 0x1E
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#endif
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