--- /dev/null
+/*
+ * (C) Copyright 2001
+ * Denis Peter, MPL AG Switzerland
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+ #ifndef _SCSI_H
+ #define _SCSI_H
+
+typedef struct SCSI_cmd_block{
+ unsigned char cmd[16]; /* command */
+ /* for request sense */
+ unsigned char sense_buf[64]
+ __attribute__((aligned(ARCH_DMA_MINALIGN)));
+ unsigned char status; /* SCSI Status */
+ unsigned char target; /* Target ID */
+ unsigned char lun; /* Target LUN */
+ unsigned char cmdlen; /* command len */
+ unsigned long datalen; /* Total data length */
+ unsigned char * pdata; /* pointer to data */
+ unsigned char msgout[12]; /* Messge out buffer (NOT USED) */
+ unsigned char msgin[12]; /* Message in buffer */
+ unsigned char sensecmdlen; /* Sense command len */
+ unsigned long sensedatalen; /* Sense data len */
+ unsigned char sensecmd[6]; /* Sense command */
+ unsigned long contr_stat; /* Controller Status */
+ unsigned long trans_bytes; /* tranfered bytes */
+
+ unsigned int priv;
+}ccb;
+
+/*-----------------------------------------------------------
+**
+** SCSI constants.
+**
+**-----------------------------------------------------------
+*/
+
+/*
+** Messages
+*/
+
+#define M_COMPLETE (0x00)
+#define M_EXTENDED (0x01)
+#define M_SAVE_DP (0x02)
+#define M_RESTORE_DP (0x03)
+#define M_DISCONNECT (0x04)
+#define M_ID_ERROR (0x05)
+#define M_ABORT (0x06)
+#define M_REJECT (0x07)
+#define M_NOOP (0x08)
+#define M_PARITY (0x09)
+#define M_LCOMPLETE (0x0a)
+#define M_FCOMPLETE (0x0b)
+#define M_RESET (0x0c)
+#define M_ABORT_TAG (0x0d)
+#define M_CLEAR_QUEUE (0x0e)
+#define M_INIT_REC (0x0f)
+#define M_REL_REC (0x10)
+#define M_TERMINATE (0x11)
+#define M_SIMPLE_TAG (0x20)
+#define M_HEAD_TAG (0x21)
+#define M_ORDERED_TAG (0x22)
+#define M_IGN_RESIDUE (0x23)
+#define M_IDENTIFY (0x80)
+
+#define M_X_MODIFY_DP (0x00)
+#define M_X_SYNC_REQ (0x01)
+#define M_X_WIDE_REQ (0x03)
+#define M_X_PPR_REQ (0x04)
+
+
+/*
+** Status
+*/
+
+#define S_GOOD (0x00)
+#define S_CHECK_COND (0x02)
+#define S_COND_MET (0x04)
+#define S_BUSY (0x08)
+#define S_INT (0x10)
+#define S_INT_COND_MET (0x14)
+#define S_CONFLICT (0x18)
+#define S_TERMINATED (0x20)
+#define S_QUEUE_FULL (0x28)
+#define S_ILLEGAL (0xff)
+#define S_SENSE (0x80)
+
+/*
+ * Sense_keys
+ */
+
+#define SENSE_NO_SENSE 0x0
+#define SENSE_RECOVERED_ERROR 0x1
+#define SENSE_NOT_READY 0x2
+#define SENSE_MEDIUM_ERROR 0x3
+#define SENSE_HARDWARE_ERROR 0x4
+#define SENSE_ILLEGAL_REQUEST 0x5
+#define SENSE_UNIT_ATTENTION 0x6
+#define SENSE_DATA_PROTECT 0x7
+#define SENSE_BLANK_CHECK 0x8
+#define SENSE_VENDOR_SPECIFIC 0x9
+#define SENSE_COPY_ABORTED 0xA
+#define SENSE_ABORTED_COMMAND 0xB
+#define SENSE_VOLUME_OVERFLOW 0xD
+#define SENSE_MISCOMPARE 0xE
+
+
+#define SCSI_CHANGE_DEF 0x40 /* Change Definition (Optional) */
+#define SCSI_COMPARE 0x39 /* Compare (O) */
+#define SCSI_COPY 0x18 /* Copy (O) */
+#define SCSI_COP_VERIFY 0x3A /* Copy and Verify (O) */
+#define SCSI_INQUIRY 0x12 /* Inquiry (MANDATORY) */
+#define SCSI_LOG_SELECT 0x4C /* Log Select (O) */
+#define SCSI_LOG_SENSE 0x4D /* Log Sense (O) */
+#define SCSI_MODE_SEL6 0x15 /* Mode Select 6-byte (Device Specific) */
+#define SCSI_MODE_SEL10 0x55 /* Mode Select 10-byte (Device Specific) */
+#define SCSI_MODE_SEN6 0x1A /* Mode Sense 6-byte (Device Specific) */
+#define SCSI_MODE_SEN10 0x5A /* Mode Sense 10-byte (Device Specific) */
+#define SCSI_READ_BUFF 0x3C /* Read Buffer (O) */
+#define SCSI_REQ_SENSE 0x03 /* Request Sense (MANDATORY) */
+#define SCSI_SEND_DIAG 0x1D /* Send Diagnostic (O) */
+#define SCSI_TST_U_RDY 0x00 /* Test Unit Ready (MANDATORY) */
+#define SCSI_WRITE_BUFF 0x3B /* Write Buffer (O) */
+/***************************************************************************
+ * %%% Commands Unique to Direct Access Devices %%%
+ ***************************************************************************/
+#define SCSI_COMPARE 0x39 /* Compare (O) */
+#define SCSI_FORMAT 0x04 /* Format Unit (MANDATORY) */
+#define SCSI_LCK_UN_CAC 0x36 /* Lock Unlock Cache (O) */
+#define SCSI_PREFETCH 0x34 /* Prefetch (O) */
+#define SCSI_MED_REMOVL 0x1E /* Prevent/Allow medium Removal (O) */
+#define SCSI_READ6 0x08 /* Read 6-byte (MANDATORY) */
+#define SCSI_READ10 0x28 /* Read 10-byte (MANDATORY) */
+#define SCSI_RD_CAPAC 0x25 /* Read Capacity (MANDATORY) */
+#define SCSI_RD_CAPAC10 SCSI_RD_CAPAC /* Read Capacity (10) */
+#define SCSI_RD_CAPAC16 0x9e /* Read Capacity (16) */
+#define SCSI_RD_DEFECT 0x37 /* Read Defect Data (O) */
+#define SCSI_READ_LONG 0x3E /* Read Long (O) */
+#define SCSI_REASS_BLK 0x07 /* Reassign Blocks (O) */
+#define SCSI_RCV_DIAG 0x1C /* Receive Diagnostic Results (O) */
+#define SCSI_RELEASE 0x17 /* Release Unit (MANDATORY) */
+#define SCSI_REZERO 0x01 /* Rezero Unit (O) */
+#define SCSI_SRCH_DAT_E 0x31 /* Search Data Equal (O) */
+#define SCSI_SRCH_DAT_H 0x30 /* Search Data High (O) */
+#define SCSI_SRCH_DAT_L 0x32 /* Search Data Low (O) */
+#define SCSI_SEEK6 0x0B /* Seek 6-Byte (O) */
+#define SCSI_SEEK10 0x2B /* Seek 10-Byte (O) */
+#define SCSI_SEND_DIAG 0x1D /* Send Diagnostics (MANDATORY) */
+#define SCSI_SET_LIMIT 0x33 /* Set Limits (O) */
+#define SCSI_START_STP 0x1B /* Start/Stop Unit (O) */
+#define SCSI_SYNC_CACHE 0x35 /* Synchronize Cache (O) */
+#define SCSI_VERIFY 0x2F /* Verify (O) */
+#define SCSI_WRITE6 0x0A /* Write 6-Byte (MANDATORY) */
+#define SCSI_WRITE10 0x2A /* Write 10-Byte (MANDATORY) */
+#define SCSI_WRT_VERIFY 0x2E /* Write and Verify (O) */
+#define SCSI_WRITE_LONG 0x3F /* Write Long (O) */
+#define SCSI_WRITE_SAME 0x41 /* Write Same (O) */
+
+
+/****************************************************************************
+ * decleration of functions which have to reside in the LowLevel Part Driver
+ */
+
+void scsi_print_error(ccb *pccb);
+int scsi_exec(ccb *pccb);
+void scsi_bus_reset(void);
+void scsi_low_level_init(int busdevfunc);
+
+
+/***************************************************************************
+ * functions residing inside cmd_scsi.c
+ */
+void scsi_init(void);
+void scsi_scan(int mode);
+
+/** @return the number of scsi disks */
+int scsi_get_disk_count(void);
+
+#define SCSI_IDENTIFY 0xC0 /* not used */
+
+/* Hardware errors */
+#define SCSI_SEL_TIME_OUT 0x00000101 /* Selection time out */
+#define SCSI_HNS_TIME_OUT 0x00000102 /* Handshake */
+#define SCSI_MA_TIME_OUT 0x00000103 /* Phase error */
+#define SCSI_UNEXP_DIS 0x00000104 /* unexpected disconnect */
+
+#define SCSI_INT_STATE 0x00010000 /* unknown Interrupt number is stored in 16 LSB */
+
+#endif /* _SCSI_H */
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