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Prepare flash code for multiple device type support (#5683)

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* Prepare flash drivers for multiple device type support

* Add static assertions on device page and flashfs alloc sizes.
This commit is contained in:
jflyper 2018-04-19 18:05:42 +09:00 • committed by Michael Keller
parent 4a5e79a534
commit 864dba98c1
13 changed files with 387 additions and 187 deletions
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31
src/main/drivers/flash.h
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@ -19,10 +19,39 @@
#include <stdint.h>
#include "pg/flash.h"
#include "drivers/io.h"
// Maximum page size of all supported SPI flash devices.
// Used to detect flashfs allocation size being too small.
#define FLASH_MAX_PAGE_SIZE 2048
#define SPIFLASH_INSTRUCTION_RDID 0x9F
typedef enum {
FLASH_TYPE_NOR = 0,
FLASH_TYPE_NAND
} flashType_e;
typedef struct flashGeometry_s {
uint16_t sectors; // Count of the number of erasable blocks on the device
const uint16_t pageSize; // In bytes
uint16_t pageSize; // In bytes
uint32_t sectorSize; // This is just pagesPerSector * pageSize
uint32_t totalSize; // This is just sectorSize * sectors
uint16_t pagesPerSector;
flashType_e flashType;
} flashGeometry_t;
bool flashInit(const flashConfig_t *flashConfig);
bool flashIsReady(void);
bool flashWaitForReady(uint32_t timeoutMillis);
void flashEraseSector(uint32_t address);
void flashEraseCompletely(void);
void flashPageProgramBegin(uint32_t address);
void flashPageProgramContinue(const uint8_t *data, int length);
void flashPageProgramFinish(void);
void flashPageProgram(uint32_t address, const uint8_t *data, int length);
int flashReadBytes(uint32_t address, uint8_t *buffer, int length);
void flashFlush(void);
const flashGeometry_t *flashGetGeometry(void);