int ChainingBlockDevice::erase(bd_addr_t addr, bd_size_t size) { MBED_ASSERT(is_valid_erase(addr, size)); if (!_is_initialized) { return BD_ERROR_DEVICE_ERROR; } // Find block devices containing blocks, may span multiple block devices for (size_t i = 0; i < _bd_count && size > 0; i++) { bd_size_t bdsize = _bds[i]->size(); if (addr < bdsize) { bd_size_t erase = size; if (addr + erase > bdsize) { erase = bdsize - addr; } int err = _bds[i]->erase(addr, erase); if (err) { return err; } addr += erase; size -= erase; } addr -= bdsize; } return 0; }
int HeapBlockDevice::erase(bd_addr_t addr, bd_size_t size) { MBED_ASSERT(_blocks != NULL); MBED_ASSERT(is_valid_erase(addr, size)); // TODO assert on programming unerased blocks return 0; }
int FlashSimBlockDevice::erase(bd_addr_t addr, bd_size_t size) { MBED_ASSERT(is_valid_erase(addr, size)); bd_addr_t curr_addr = addr; bd_size_t curr_size = size; memset(_blank_buf, _erase_value, (unsigned int) _blank_buf_size); while (curr_size) { bd_size_t prog_size = std::min(_blank_buf_size, curr_size); int ret = _bd->program(_blank_buf, curr_addr, prog_size); if (ret) { return ret; } curr_addr += prog_size; curr_size -= prog_size; } return BD_ERROR_OK; }
int SlicingBlockDevice::erase(bd_addr_t addr, bd_size_t size) { MBED_ASSERT(is_valid_erase(addr, size)); return _bd->erase(addr + _start, size); }