dev/storage/ide_disk.cc

156     memset(&cmdReg, 0, sizeof(CommandReg_t));
186     cmdReg.error = 0x1;
217             *(uint16_t *)data = cmdReg.data;
219             *(uint16_t *)data = cmdReg.data;
221             *((uint16_t *)data + 1) = cmdReg.data;
231         *data = cmdReg.error;
234         *data = cmdReg.sec_count;
237         *data = cmdReg.sec_num;
240         *data = cmdReg.cyl_low;
243         *data = cmdReg.cyl_high;
246         *data = cmdReg.drive;
273             cmdReg.data = *(const uint16_t *)data;
275             cmdReg.data = *(const uint16_t *)data;
277             cmdReg.data = *((const uint16_t *)data + 1);
290         cmdReg.sec_count = *data;
293         cmdReg.sec_num = *data;
296         cmdReg.cyl_low = *data;
299         cmdReg.cyl_high = *data;
302         cmdReg.drive = *data;
306         cmdReg.command = *data;
637     switch (cmdReg.command) {
641         cmdReg.sec_num = (size & 0xff);
642         cmdReg.cyl_low = ((size & 0xff00) >> 8);
643         cmdReg.cyl_high = ((size & 0xff0000) >> 16);
644         cmdReg.head = ((size & 0xf000000) >> 24);
673         if (!(cmdReg.drive & DRIVE_LBA_BIT))
676         if (cmdReg.sec_count == 0)
679             cmdBytes = cmdBytesLeft = (cmdReg.sec_count * SectorSize);
691         if (!(cmdReg.drive & DRIVE_LBA_BIT))
694         if (cmdReg.sec_count == 0)
697             cmdBytes = cmdBytesLeft = (cmdReg.sec_count * SectorSize);
710         if (!(cmdReg.drive & DRIVE_LBA_BIT))
713         if (cmdReg.sec_count == 0)
716             cmdBytes = cmdBytesLeft = (cmdReg.sec_count * SectorSize);
726         panic("Unsupported ATA command: %#x\n", cmdReg.command);
862             if (cmdReg.command == WDCC_IDENTIFY ||
863                 cmdReg.command == ATAPI_IDENTIFY_DEVICE) {
877             memcpy((void *)&cmdReg.data, (void *)dataBuffer,
906                     memcpy((void *)&cmdReg.data,
979                        (void *)&cmdReg.data,
1125     SERIALIZE_SCALAR(cmdReg.data);
1126     SERIALIZE_SCALAR(cmdReg.sec_count);
1127     SERIALIZE_SCALAR(cmdReg.sec_num);
1128     SERIALIZE_SCALAR(cmdReg.cyl_low);
1129     SERIALIZE_SCALAR(cmdReg.cyl_high);
1130     SERIALIZE_SCALAR(cmdReg.drive);
1131     SERIALIZE_SCALAR(cmdReg.command);
1178     UNSERIALIZE_SCALAR(cmdReg.data);
1179     UNSERIALIZE_SCALAR(cmdReg.sec_count);
1180     UNSERIALIZE_SCALAR(cmdReg.sec_num);
1181     UNSERIALIZE_SCALAR(cmdReg.cyl_low);
1182     UNSERIALIZE_SCALAR(cmdReg.cyl_high);
1183     UNSERIALIZE_SCALAR(cmdReg.drive);
1184     UNSERIALIZE_SCALAR(cmdReg.command);