50a874c287
Added NCR 58c400-based SCSI adapters : - Longshine LCS-6821N - Ranco RT1000B - Trantor T130B
103 lines
3 KiB
C
103 lines
3 KiB
C
struct scsi_bus_t;
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typedef struct scsi_device_t
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{
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void *(*init)(struct scsi_bus_t *bus, int id);
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void (*close)(void *p);
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void (*start_command)(void *p);
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int (*command)(uint8_t *cdb, void *p);
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uint8_t (*get_status)(void *p);
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uint8_t (*read)(void *p);
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void (*write)(uint8_t val, void *p);
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int (*read_complete)(void *p);
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int (*write_complete)(void *p);
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} scsi_device_t;
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typedef struct scsi_bus_t
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{
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int state;
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int new_state;
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int clear_req;
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uint32_t bus_in, bus_out;
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int dev_id;
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int command_pos;
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uint8_t command[20];
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scsi_device_t *devices[8];
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void *device_data[8];
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int change_state_delay;
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int new_req_delay;
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} scsi_bus_t;
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//int scsi_add_data(uint8_t val);
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//int scsi_get_data();
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void scsi_set_phase(uint8_t phase);
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void scsi_set_irq(uint8_t status);
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#define SCSI_TEST_UNIT_READY 0x00
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#define SCSI_REZERO_UNIT 0x01
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#define SCSI_REQUEST_SENSE 0x03
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#define SCSI_FORMAT 0x04
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#define SCSI_READ_6 0x08
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#define SCSI_WRITE_6 0x0a
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#define SCSI_SEEK_6 0x0b
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#define SCSI_INQUIRY 0x12
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#define SCSI_MODE_SELECT_6 0x15
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#define SCSI_MODE_SENSE_6 0x1a
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#define SCSI_START_STOP_UNIT 0x1b
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#define SCSI_PREVENT_ALLOW_MEDIUM_REMOVAL 0x1e
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#define SCSI_READ_CAPACITY_10 0x25
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#define SCSI_READ_10 0x28
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#define SCSI_WRITE_10 0x2a
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#define SCSI_SEEK_10 0x2b
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#define SCSI_VERIFY_10 0x2f
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#define SCSI_READ_BUFFER 0x3c
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#define SCSI_RESERVE 0x16
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#define SCSI_RELEASE 0x17
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#define SEND_DIAGNOSTIC 0x1d
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#define STATUS_GOOD 0x00
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#define STATUS_CHECK_CONDITION 0x02
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#define MSG_COMMAND_COMPLETE 0x00
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#define BUS_DBP 0x01
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#define BUS_SEL 0x02
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#define BUS_IO 0x04
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#define BUS_CD 0x08
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#define BUS_MSG 0x10
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#define BUS_REQ 0x20
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#define BUS_BSY 0x40
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#define BUS_RST 0x80
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#define BUS_ACK 0x200
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#define BUS_ATN 0x200
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#define BUS_ARB 0x8000
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#define BUS_SETDATA(val) ((uint32_t)val << 16)
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#define BUS_GETDATA(val) ((val >> 16) & 0xff)
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#define BUS_DATAMASK 0xff0000
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#define BUS_IDLE (1 << 31)
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int scsi_bus_update(scsi_bus_t *bus, int bus_assert);
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int scsi_bus_read(scsi_bus_t *bus);
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int scsi_bus_match(scsi_bus_t *bus, int bus_assert);
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void scsi_bus_kick(scsi_bus_t *bus);
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void scsi_bus_init(scsi_bus_t *bus);
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void scsi_bus_close(scsi_bus_t *bus);
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#define KEY_ILLEGAL_REQ 5
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#define ASC_INVALID_LUN 0x25
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#define SCSI_PHASE_DATA_OUT 0
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#define SCSI_PHASE_DATA_IN BUS_IO
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#define SCSI_PHASE_COMMAND BUS_CD
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#define SCSI_PHASE_STATUS (BUS_CD | BUS_IO)
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#define SCSI_PHASE_MESSAGE_OUT (BUS_MSG | BUS_CD)
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#define SCSI_PHASE_MESSAGE_IN (BUS_MSG | BUS_CD | BUS_IO)
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