| 857 | } |
| 858 | |
| 859 | static bool atapi_set_size (struct ide_hdf *ide) |
| 860 | { |
| 861 | int size; |
| 862 | size = ide->data_size; |
| 863 | ide->data_offset = 0; |
| 864 | if (!size) { |
| 865 | ide->packet_state = 0; |
| 866 | ide->packet_transfer_size = 0; |
| 867 | return false; |
| 868 | } |
| 869 | if (ide->packet_state == 2) { |
| 870 | if (size > ide->packet_data_size) |
| 871 | size = ide->packet_data_size; |
| 872 | if (size > ATAPI_MAX_TRANSFER) |
| 873 | size = ATAPI_MAX_TRANSFER; |
| 874 | ide->packet_transfer_size = size & ~1; |
| 875 | ide->regs.ide_lcyl = size & 0xff; |
| 876 | ide->regs.ide_hcyl = size >> 8; |
| 877 | } else { |
| 878 | ide->packet_transfer_size = 12; |
| 879 | } |
| 880 | if (IDE_LOG > 1) |
| 881 | write_log (_T("ATAPI data transfer %d/%d bytes\n"), ide->packet_transfer_size, ide->data_size); |
| 882 | return true; |
| 883 | } |
| 884 | |
| 885 | static void atapi_packet (struct ide_hdf *ide) |
| 886 | { |
no test coverage detected