| 41 | } |
| 42 | |
| 43 | int ATADiskDevice::ReadDiskBlock(uint64_t lba, uint32_t count, void* _buffer){ |
| 44 | uint64_t blockCount = ((count / 512 * 512) < count) ? ((count / 512) + 1) : (count / 512); |
| 45 | uint8_t* buffer = reinterpret_cast<uint8_t*>(_buffer); |
| 46 | |
| 47 | while(blockCount-- && count){ |
| 48 | uint64_t size; |
| 49 | if(count < 512) size = count; |
| 50 | else size = 512; |
| 51 | |
| 52 | if(!size) continue; |
| 53 | |
| 54 | driveLock.Wait(); |
| 55 | if(ATA::Access(this, lba, 1, false)){ |
| 56 | driveLock.Signal(); |
| 57 | return 1; // Error Reading Sectors |
| 58 | } |
| 59 | |
| 60 | memcpy(buffer, prdBuffer, size); |
| 61 | driveLock.Signal(); |
| 62 | |
| 63 | buffer += size; |
| 64 | lba++; |
| 65 | } |
| 66 | |
| 67 | return 0; |
| 68 | } |
| 69 | |
| 70 | int ATADiskDevice::WriteDiskBlock(uint64_t lba, uint32_t count, void* _buffer){ |
| 71 | uint64_t blockCount = ((count / 512 * 512) < count) ? ((count / 512) + 1) : (count / 512); |