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Add flash partitioning system

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This commit is contained in:
Dominic Clifton 2019-05-11 01:21:13 +09:00 • committed by jflyper
parent ba047e0559
commit 92999681e3
9 changed files with 215 additions and 56 deletions
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30
src/main/drivers/flash.h
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@ -36,8 +36,10 @@ typedef enum {
FLASH_TYPE_NAND
} flashType_e;
typedef uint16_t flashSector_t;
typedef struct flashGeometry_s {
uint16_t sectors; // Count of the number of erasable blocks on the device
flashSector_t sectors; // Count of the number of erasable blocks on the device
uint16_t pageSize; // In bytes
uint32_t sectorSize; // This is just pagesPerSector * pageSize
uint32_t totalSize; // This is just sectorSize * sectors
@ -59,3 +61,29 @@ 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);
//
// flash partitioning api
//
typedef struct flashPartition_s {
uint8_t usage;
flashSector_t startSector;
flashSector_t endSector;
} flashPartition_t;
#define FLASH_PARTITION_SECTOR_COUNT(partition) (partition->endSector + 1 - partition->startSector) // + 1 for inclusive, start and end sector can be the same sector.
#define FLASH_PARTITION_UNKNOWN 0
#define FLASH_PARTITION_FLASHFS 1
#define FLASH_PARTITION_BADBLOCK_MANAGEMENT 2
#define FLASH_PARTITION_FIRMWARE 3
#define FLASH_MAX_PARTITIONS 3
typedef struct flashPartitionTable_s {
flashPartition_t partitions[FLASH_MAX_PARTITIONS];
} flashPartitionTable_t;
void flashSetPartition(uint8_t index, const flashPartition_t *partition);
const flashPartition_t *flashFindPartitionByUsage(uint8_t usage);