140         for i in 0..((volatile_read!(cmdheader.prdtl) - 1) as usize) {  in read_at()
141             volatile_write!(cmdtbl.prdt_entry[i].dba, virt_2_phys(buf_ptr) as u64);  in read_at()
142             cmdtbl.prdt_entry[i].dbc = 8 * 1024 - 1;  in read_at()
143             volatile_set_bit!(cmdtbl.prdt_entry[i].dbc, 1 << 31, true); // 允许中断 prdt_entry.i  in read_at()
296         for i in 0..((volatile_read!(cmdheader.prdtl) - 1) as usize) {  in write_at()
297             volatile_write!(cmdtbl.prdt_entry[i].dba, virt_2_phys(buf_ptr) as u64);  in write_at()
298             volatile_write_bit!(cmdtbl.prdt_entry[i].dbc, (1 << 22) - 1, 8 * 1024 - 1); // 数据长度  in write_at()
299             volatile_set_bit!(cmdtbl.prdt_entry[i].dbc, 1 << 31, true); // 允许中断  in write_at()
380         for i in 0..4 {  in new()
382             if table.dpte[i].part_type != 0 {  in new()
385                     table.dpte[i].starting_sector() as u64,  in new()
386                     table.dpte[i].starting_lba as u64,  in new()
387                     table.dpte[i].total_sectors as u64,  in new()
389                     i as u16,  in new()
412         for i in 0..4 {  in read_mbr_table()
413             kdebug!("infomation of partition {}:\n", i);  in read_mbr_table()
415             table.dpte[i].flags = cursor.read_u8()?;  in read_mbr_table()
416             table.dpte[i].starting_head = cursor.read_u8()?;  in read_mbr_table()
417             table.dpte[i].starting_sector_cylinder = cursor.read_u16()?;  in read_mbr_table()
418             table.dpte[i].part_type = cursor.read_u8()?;  in read_mbr_table()
419             table.dpte[i].ending_head = cursor.read_u8()?;  in read_mbr_table()
420             table.dpte[i].ending_sector_cylingder = cursor.read_u16()?;  in read_mbr_table()
421             table.dpte[i].starting_lba = cursor.read_u32()?;  in read_mbr_table()
422             table.dpte[i].total_sectors = cursor.read_u32()?;  in read_mbr_table()
424             kdebug!("dpte[i] = {:?}", table.dpte[i]);  in read_mbr_table()