/* * scsi.h - SCSI disk emulation * * Written by * Roberto Muscedere * * This file is part of VICE, the Versatile Commodore Emulator. * See README for copyright notice. * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA * 02111-1307 USA. * */ #ifndef VICE_SCSI_H #define VICE_SCSI_H #include "types.h" struct scsi_context_s; typedef struct scsi_context_s { char *myname; uint8_t state; uint8_t target; uint8_t databus; uint8_t ack; uint8_t req; uint8_t bsyi; uint8_t bsyo; uint8_t sel; uint8_t rst; uint8_t atn; uint8_t cd; uint8_t io; uint8_t msg; uint32_t seq; uint32_t cmd_size; uint32_t address; uint32_t blocks; uint32_t data_max; uint8_t link; uint8_t status; uint8_t lun; uint8_t command; uint8_t sensekey; uint8_t asc; uint8_t cmd_buf[256]; uint8_t data_buf[512]; uint8_t msg_after_status; uint32_t max_imagesize; /* in 512 byte sectors */ uint32_t limit_imagesize; /* in 512 byte sectors */ uint32_t log; FILE *file[56]; void *p; void (*user_format)(struct scsi_context_s *); void (*user_read)(struct scsi_context_s *); void (*user_write)(struct scsi_context_s *); } scsi_context_t; /* From SCSI-1 standard: ============================================================================== Signal ----------- MSG C/D I/O Phase Name Direction Of Transfer Comment ------------------------------------------------------------------------------ 0 0 0 DATA OUT Initiator to target \ Data 0 0 1 DATA IN Initiator from target / Phase 0 1 0 COMMAND Initiator to target 0 1 1 STATUS Initiator from target 1 0 0 * 1 0 1 * 1 1 0 MESSAGE OUT Initiator to target \ Message 1 1 1 MESSAGE IN Initiator from target / Phase ============================================================================== */ #define SCSI_STATE_DATAOUT 0x00 #define SCSI_STATE_DATAIN 0x01 #define SCSI_STATE_COMMAND 0x02 #define SCSI_STATE_STATUS 0x03 #define SCSI_STATE_MESSAGEOUT 0x04 #define SCSI_STATE_MESSAGEIN 0x05 #define SCSI_STATE_BUSFREE 0x10 #define SCSI_STATE_SELECTION 0x20 /* will be bitshifted left by 1 before sent: see table 14-2 of scsi spec */ #define SCSI_STATUS_GOOD 0x00 #define SCSI_STATUS_CHECKCONDITION 0x01 #define SCSI_STATUS_CONDITIONMET 0x02 #define SCSI_STATUS_BUSY 0x04 #define SCSI_STATUS_INTERMEDIATE 0x08 #define SCSI_STATUS_INTERMEDIATECONDITIONMET 0x0A #define SCSI_STATUS_RESERVATIONCONFLICT 0x0C #define SCSI_STATUS_COMMANDTERMINATED 0x11 #define SCSI_STATUS_QUEUEFULL 0x14 #define SCSI_SENSEKEY_NOSENSE 0x00 #define SCSI_SENSEKEY_RECOVEREDERROR 0x01 #define SCSI_SENSEKEY_NOTREADY 0x02 #define SCSI_SENSEKEY_MEDIUMERROR 0x03 #define SCSI_SENSEKEY_HARDWAREERROR 0x04 #define SCSI_SENSEKEY_ILLEGALREQUEST 0x05 #define SCSI_SENSEKEY_UNITATTENTION 0x06 #define SCSI_SENSEKEY_DATAPROTECT 0x07 #define SCSI_SENSEKEY_BLANKCHECK 0x08 #define SCSI_SENSEKEY_VENDORSPECIFIC 0x09 #define SCSI_SENSEKEY_COPYABORTED 0x0a #define SCSI_SENSEKEY_ABORTEDCOMMAND 0x0b #define SCSI_SENSEKEY_EQUAL 0x0c #define SCSI_SENSEKEY_VOLUMEOVERFLOW 0x0d #define SCSI_SENSEKEY_MISCOMPARE 0x0e #define SCSI_SENSEKEY_COMPLETED 0x0f #define SCSI_SASC_LOGICALBLOCKADDRESSOUTOFRANGE 0x21 #define SCSI_SASC_INVALIDFIELDINCDB 0x24 #define SCSI_SASC_INVALIDFIELDINPARAMETERLIST 0x26 #define SCSI_LOG_NODISK0 0x01 /* commands that have full or limited implementation known to be used by LTK and CMD HDs */ #define SCSI_COMMAND_TEST_UNIT_READY 0x00 #define SCSI_COMMAND_REZERO_UNIT 0x01 #define SCSI_COMMAND_REQUEST_SENSE 0x03 #define SCSI_COMMAND_FORMAT_UNIT 0x04 #define SCSI_COMMAND_REASSIGN_BLOCKS 0x07 #define SCSI_COMMAND_READ_6 0x08 #define SCSI_COMMAND_WRITE_6 0x0a #define SCSI_COMMAND_INQUIRY 0x12 #define SCSI_COMMAND_MODE_SENSE 0x1a #define SCSI_COMMAND_START_STOP 0x1b #define SCSI_COMMAND_SEND_DIAGNOSTIC 0x1d #define SCSI_COMMAND_READ_CAPACITY 0x25 #define SCSI_COMMAND_READ_10 0x28 #define SCSI_COMMAND_WRITE_10 0x2a #define SCSI_COMMAND_VERIFY 0x2f #define SCSI_COMMAND_MODE_SENSE_10 0x5a /* commands users have requested to be implemented */ #define SCSI_COMMAND_WRITE_VERIFY 0x2e /* unimplemented commands */ #define SCSI_COMMAND_READ_BLOCK_LIMITS 0x05 #define SCSI_COMMAND_SEEK_6 0x0b #define SCSI_COMMAND_READ_REVERSE 0x0f #define SCSI_COMMAND_WRITE_FILEMARKS 0x10 #define SCSI_COMMAND_SPACE 0x11 #define SCSI_COMMAND_RECOVER_BUFFERED_DATA 0x14 #define SCSI_COMMAND_MODE_SELECT 0x15 #define SCSI_COMMAND_RESERVE 0x16 #define SCSI_COMMAND_RELEASE 0x17 #define SCSI_COMMAND_COPY 0x18 #define SCSI_COMMAND_ERASE 0x19 #define SCSI_COMMAND_RECEIVE_DIAGNOSTIC 0x1c #define SCSI_COMMAND_ALLOW_MEDIUM_REMOVAL 0x1e #define SCSI_COMMAND_SET_WINDOW 0x24 #define SCSI_COMMAND_SEEK_10 0x2b #define SCSI_COMMAND_SEARCH_HIGH 0x30 #define SCSI_COMMAND_SEARCH_EQUAL 0x31 #define SCSI_COMMAND_SEARCH_LOW 0x32 #define SCSI_COMMAND_SET_LIMITS 0x33 #define SCSI_COMMAND_PRE_FETCH 0x34 #define SCSI_COMMAND_READ_POSITION 0x34 #define SCSI_COMMAND_SYNCHRONIZE_CACHE 0x35 #define SCSI_COMMAND_LOCK_UNLOCK_CACHE 0x36 #define SCSI_COMMAND_READ_DEFECT_DATA 0x37 #define SCSI_COMMAND_MEDIUM_SCAN 0x38 #define SCSI_COMMAND_COMPARE 0x39 #define SCSI_COMMAND_COPY_VERIFY 0x3a #define SCSI_COMMAND_WRITE_BUFFER 0x3b #define SCSI_COMMAND_READ_BUFFER 0x3c #define SCSI_COMMAND_UPDATE_BLOCK 0x3d #define SCSI_COMMAND_READ_LONG 0x3e #define SCSI_COMMAND_WRITE_LONG 0x3f #define SCSI_COMMAND_CHANGE_DEFINITION 0x40 #define SCSI_COMMAND_WRITE_SAME 0x41 #define SCSI_COMMAND_READ_TOC 0x43 #define SCSI_COMMAND_LOG_SELECT 0x4c #define SCSI_COMMAND_LOG_SENSE 0x4d #define SCSI_COMMAND_MODE_SELECT_10 0x55 #define SCSI_COMMAND_RESERVE_10 0x56 #define SCSI_COMMAND_RELEASE_10 0x57 #define SCSI_COMMAND_PERSISTENT_RESERVE_IN 0x5e #define SCSI_COMMAND_PERSISTENT_RESERVE_OUT 0x5f #define SCSI_COMMAND_MOVE_MEDIUM 0xa5 #define SCSI_COMMAND_READ_12 0xa8 #define SCSI_COMMAND_WRITE_12 0xaa #define SCSI_COMMAND_WRITE_VERIFY_12 0xae #define SCSI_COMMAND_SEARCH_HIGH_12 0xb0 #define SCSI_COMMAND_SEARCH_EQUAL_12 0xb1 #define SCSI_COMMAND_SEARCH_LOW_12 0xb2 #define SCSI_COMMAND_READ_ELEMENT_STATUS 0xb8 #define SCSI_COMMAND_SEND_VOLUME_TAG 0xb6 #define SCSI_COMMAND_WRITE_LONG_2 0xea int scsi_image_detach(struct scsi_context_s *context, int disk); void scsi_image_detach_all(struct scsi_context_s *context); int scsi_image_attach(struct scsi_context_s *context, int disk, char *filename); int32_t scsi_image_read(struct scsi_context_s *context); int32_t scsi_image_write(struct scsi_context_s *context); uint8_t scsi_get_bus(struct scsi_context_s *context); int scsi_set_bus(struct scsi_context_s *context, uint8_t value); void scsi_process_noack(struct scsi_context_s *context); void scsi_process_ack(struct scsi_context_s *context); void scsi_reset(struct scsi_context_s *context); int scsi_snapshot_write_module(struct scsi_context_s *context, snapshot_t *s); int scsi_snapshot_read_module(struct scsi_context_s *context, snapshot_t *s); #endif