1/* 2 * (C) Copyright 2001 3 * Denis Peter, MPL AG Switzerland 4 * 5 * SPDX-License-Identifier: GPL-2.0+ 6 */ 7 #ifndef _SCSI_H 8 #define _SCSI_H 9 10typedef struct SCSI_cmd_block{ 11 unsigned char cmd[16]; /* command */ 12 /* for request sense */ 13 unsigned char sense_buf[64] 14 __attribute__((aligned(ARCH_DMA_MINALIGN))); 15 unsigned char status; /* SCSI Status */ 16 unsigned char target; /* Target ID */ 17 unsigned char lun; /* Target LUN */ 18 unsigned char cmdlen; /* command len */ 19 unsigned long datalen; /* Total data length */ 20 unsigned char * pdata; /* pointer to data */ 21 unsigned char msgout[12]; /* Messge out buffer (NOT USED) */ 22 unsigned char msgin[12]; /* Message in buffer */ 23 unsigned char sensecmdlen; /* Sense command len */ 24 unsigned long sensedatalen; /* Sense data len */ 25 unsigned char sensecmd[6]; /* Sense command */ 26 unsigned long contr_stat; /* Controller Status */ 27 unsigned long trans_bytes; /* tranfered bytes */ 28 29 unsigned int priv; 30}ccb; 31 32/*----------------------------------------------------------- 33** 34** SCSI constants. 35** 36**----------------------------------------------------------- 37*/ 38 39/* 40** Messages 41*/ 42 43#define M_COMPLETE (0x00) 44#define M_EXTENDED (0x01) 45#define M_SAVE_DP (0x02) 46#define M_RESTORE_DP (0x03) 47#define M_DISCONNECT (0x04) 48#define M_ID_ERROR (0x05) 49#define M_ABORT (0x06) 50#define M_REJECT (0x07) 51#define M_NOOP (0x08) 52#define M_PARITY (0x09) 53#define M_LCOMPLETE (0x0a) 54#define M_FCOMPLETE (0x0b) 55#define M_RESET (0x0c) 56#define M_ABORT_TAG (0x0d) 57#define M_CLEAR_QUEUE (0x0e) 58#define M_INIT_REC (0x0f) 59#define M_REL_REC (0x10) 60#define M_TERMINATE (0x11) 61#define M_SIMPLE_TAG (0x20) 62#define M_HEAD_TAG (0x21) 63#define M_ORDERED_TAG (0x22) 64#define M_IGN_RESIDUE (0x23) 65#define M_IDENTIFY (0x80) 66 67#define M_X_MODIFY_DP (0x00) 68#define M_X_SYNC_REQ (0x01) 69#define M_X_WIDE_REQ (0x03) 70#define M_X_PPR_REQ (0x04) 71 72 73/* 74** Status 75*/ 76 77#define S_GOOD (0x00) 78#define S_CHECK_COND (0x02) 79#define S_COND_MET (0x04) 80#define S_BUSY (0x08) 81#define S_INT (0x10) 82#define S_INT_COND_MET (0x14) 83#define S_CONFLICT (0x18) 84#define S_TERMINATED (0x20) 85#define S_QUEUE_FULL (0x28) 86#define S_ILLEGAL (0xff) 87#define S_SENSE (0x80) 88 89/* 90 * Sense_keys 91 */ 92 93#define SENSE_NO_SENSE 0x0 94#define SENSE_RECOVERED_ERROR 0x1 95#define SENSE_NOT_READY 0x2 96#define SENSE_MEDIUM_ERROR 0x3 97#define SENSE_HARDWARE_ERROR 0x4 98#define SENSE_ILLEGAL_REQUEST 0x5 99#define SENSE_UNIT_ATTENTION 0x6 100#define SENSE_DATA_PROTECT 0x7 101#define SENSE_BLANK_CHECK 0x8 102#define SENSE_VENDOR_SPECIFIC 0x9 103#define SENSE_COPY_ABORTED 0xA 104#define SENSE_ABORTED_COMMAND 0xB 105#define SENSE_VOLUME_OVERFLOW 0xD 106#define SENSE_MISCOMPARE 0xE 107 108 109#define SCSI_CHANGE_DEF 0x40 /* Change Definition (Optional) */ 110#define SCSI_COMPARE 0x39 /* Compare (O) */ 111#define SCSI_COPY 0x18 /* Copy (O) */ 112#define SCSI_COP_VERIFY 0x3A /* Copy and Verify (O) */ 113#define SCSI_INQUIRY 0x12 /* Inquiry (MANDATORY) */ 114#define SCSI_LOG_SELECT 0x4C /* Log Select (O) */ 115#define SCSI_LOG_SENSE 0x4D /* Log Sense (O) */ 116#define SCSI_MODE_SEL6 0x15 /* Mode Select 6-byte (Device Specific) */ 117#define SCSI_MODE_SEL10 0x55 /* Mode Select 10-byte (Device Specific) */ 118#define SCSI_MODE_SEN6 0x1A /* Mode Sense 6-byte (Device Specific) */ 119#define SCSI_MODE_SEN10 0x5A /* Mode Sense 10-byte (Device Specific) */ 120#define SCSI_READ_BUFF 0x3C /* Read Buffer (O) */ 121#define SCSI_REQ_SENSE 0x03 /* Request Sense (MANDATORY) */ 122#define SCSI_SEND_DIAG 0x1D /* Send Diagnostic (O) */ 123#define SCSI_TST_U_RDY 0x00 /* Test Unit Ready (MANDATORY) */ 124#define SCSI_WRITE_BUFF 0x3B /* Write Buffer (O) */ 125/*************************************************************************** 126 * %%% Commands Unique to Direct Access Devices %%% 127 ***************************************************************************/ 128#define SCSI_COMPARE 0x39 /* Compare (O) */ 129#define SCSI_FORMAT 0x04 /* Format Unit (MANDATORY) */ 130#define SCSI_LCK_UN_CAC 0x36 /* Lock Unlock Cache (O) */ 131#define SCSI_PREFETCH 0x34 /* Prefetch (O) */ 132#define SCSI_MED_REMOVL 0x1E /* Prevent/Allow medium Removal (O) */ 133#define SCSI_READ6 0x08 /* Read 6-byte (MANDATORY) */ 134#define SCSI_READ10 0x28 /* Read 10-byte (MANDATORY) */ 135#define SCSI_RD_CAPAC 0x25 /* Read Capacity (MANDATORY) */ 136#define SCSI_RD_CAPAC10 SCSI_RD_CAPAC /* Read Capacity (10) */ 137#define SCSI_RD_CAPAC16 0x9e /* Read Capacity (16) */ 138#define SCSI_RD_DEFECT 0x37 /* Read Defect Data (O) */ 139#define SCSI_READ_LONG 0x3E /* Read Long (O) */ 140#define SCSI_REASS_BLK 0x07 /* Reassign Blocks (O) */ 141#define SCSI_RCV_DIAG 0x1C /* Receive Diagnostic Results (O) */ 142#define SCSI_RELEASE 0x17 /* Release Unit (MANDATORY) */ 143#define SCSI_REZERO 0x01 /* Rezero Unit (O) */ 144#define SCSI_SRCH_DAT_E 0x31 /* Search Data Equal (O) */ 145#define SCSI_SRCH_DAT_H 0x30 /* Search Data High (O) */ 146#define SCSI_SRCH_DAT_L 0x32 /* Search Data Low (O) */ 147#define SCSI_SEEK6 0x0B /* Seek 6-Byte (O) */ 148#define SCSI_SEEK10 0x2B /* Seek 10-Byte (O) */ 149#define SCSI_SEND_DIAG 0x1D /* Send Diagnostics (MANDATORY) */ 150#define SCSI_SET_LIMIT 0x33 /* Set Limits (O) */ 151#define SCSI_START_STP 0x1B /* Start/Stop Unit (O) */ 152#define SCSI_SYNC_CACHE 0x35 /* Synchronize Cache (O) */ 153#define SCSI_VERIFY 0x2F /* Verify (O) */ 154#define SCSI_WRITE6 0x0A /* Write 6-Byte (MANDATORY) */ 155#define SCSI_WRITE10 0x2A /* Write 10-Byte (MANDATORY) */ 156#define SCSI_WRT_VERIFY 0x2E /* Write and Verify (O) */ 157#define SCSI_WRITE_LONG 0x3F /* Write Long (O) */ 158#define SCSI_WRITE_SAME 0x41 /* Write Same (O) */ 159 160 161/**************************************************************************** 162 * decleration of functions which have to reside in the LowLevel Part Driver 163 */ 164 165void scsi_print_error(ccb *pccb); 166int scsi_exec(ccb *pccb); 167void scsi_bus_reset(void); 168void scsi_low_level_init(int busdevfunc); 169 170 171/*************************************************************************** 172 * functions residing inside cmd_scsi.c 173 */ 174void scsi_init(void); 175void scsi_scan(int mode); 176 177/** @return the number of scsi disks */ 178int scsi_get_disk_count(void); 179 180#define SCSI_IDENTIFY 0xC0 /* not used */ 181 182/* Hardware errors */ 183#define SCSI_SEL_TIME_OUT 0x00000101 /* Selection time out */ 184#define SCSI_HNS_TIME_OUT 0x00000102 /* Handshake */ 185#define SCSI_MA_TIME_OUT 0x00000103 /* Phase error */ 186#define SCSI_UNEXP_DIS 0x00000104 /* unexpected disconnect */ 187 188#define SCSI_INT_STATE 0x00010000 /* unknown Interrupt number is stored in 16 LSB */ 189 190#endif /* _SCSI_H */ 191