bool flash_bdev_writeblock(const uint8_t *src, uint32_t block) {
// non-MBR block, copy to cache
uint32_t flash_addr = convert_block_to_flash_addr(block);
if (flash_addr == -1) {
// bad block number
return false;
}
uint32_t basepri = raise_irq_pri(IRQ_PRI_FLASH); // prevent cache flushing and USB access
uint8_t *dest = flash_cache_get_addr_for_write(flash_addr);
memcpy(dest, src, FLASH_BLOCK_SIZE);
restore_irq_pri(basepri);
return true;
}
bool storage_write_block(const uint8_t *src, uint32_t block) {
//printf("WR %u\n", block);
if (block == 0) {
// can't write MBR, but pretend we did
return true;
} else {
// non-MBR block, copy to cache
uint32_t flash_addr = convert_block_to_flash_addr(block);
if (flash_addr == -1) {
// bad block number
return false;
}
uint8_t *dest = flash_cache_get_addr_for_write(flash_addr);
memcpy(dest, src, FLASH_BLOCK_SIZE);
return true;
}
}
bool storage_write_block(const uint8_t *src, uint32_t block) {
//printf("WR %u\n", block);
if (block == 0) {
// can't write MBR, but pretend we did
return true;
} else if (FLASH_PART1_START_BLOCK <= block && block < FLASH_PART1_START_BLOCK + FLASH_PART1_NUM_BLOCKS) {
// non-MBR block, copy to cache
uint32_t flash_addr = FLASH_MEM_START_ADDR + (block - FLASH_PART1_START_BLOCK) * FLASH_BLOCK_SIZE;
uint8_t *dest = flash_cache_get_addr_for_write(flash_addr);
memcpy(dest, src, FLASH_BLOCK_SIZE);
return true;
} else {
// bad block number
return false;
}
}
bool storage_write_block(const uint8_t *src, uint32_t block) {
//printf("WR %u\n", block);
if (block == 0) {
// can't write MBR, but pretend we did
return true;
} else {
#if USE_INTERNAL
// non-MBR block, copy to cache
uint32_t flash_addr = convert_block_to_flash_addr(block);
if (flash_addr == -1) {
// bad block number
return false;
}
uint8_t *dest = flash_cache_get_addr_for_write(flash_addr);
memcpy(dest, src, FLASH_BLOCK_SIZE);
return true;
#else
// non-MBR block, write to SPI flash
if (block < FLASH_PART1_START_BLOCK || block >= FLASH_PART1_START_BLOCK + FLASH_PART1_NUM_BLOCKS) {
// bad block number
return false;
}
// we must disable USB irqs to prevent MSC contention with SPI flash
uint32_t basepri = raise_irq_pri(IRQ_PRI_OTG_FS);
int ret = mp_spiflash_write((mp_spiflash_t*)&spiflash,
(block - FLASH_PART1_START_BLOCK) * FLASH_BLOCK_SIZE, FLASH_BLOCK_SIZE, src);
restore_irq_pri(basepri);
return ret == 0;
#endif
}
}
