1/* 2 * (C) Copyright 2001 3 * Denis Peter, MPL AG Switzerland 4 * 5 * See file CREDITS for list of people who contributed to this 6 * project. 7 * 8 * This program is free software; you can redistribute it and/or 9 * modify it under the terms of the GNU General Public License as 10 * published by the Free Software Foundation; either version 2 of 11 * the License, or (at your option) any later version. 12 * 13 * This program is distributed in the hope that it will be useful, 14 * but WITHOUT ANY WARRANTY; without even the implied warranty of 15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 16 * GNU General Public License for more details. 17 * 18 * You should have received a copy of the GNU General Public License 19 * along with this program; if not, write to the Free Software 20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, 21 * MA 02111-1307 USA 22 * 23 */ 24 #ifndef _SCSI_H 25 #define _SCSI_H 26 27typedef struct SCSI_cmd_block{ 28 unsigned char cmd[16]; /* command */ 29 /* for request sense */ 30 unsigned char sense_buf[64] 31 __attribute__((aligned(ARCH_DMA_MINALIGN))); 32 unsigned char status; /* SCSI Status */ 33 unsigned char target; /* Target ID */ 34 unsigned char lun; /* Target LUN */ 35 unsigned char cmdlen; /* command len */ 36 unsigned long datalen; /* Total data length */ 37 unsigned char * pdata; /* pointer to data */ 38 unsigned char msgout[12]; /* Messge out buffer (NOT USED) */ 39 unsigned char msgin[12]; /* Message in buffer */ 40 unsigned char sensecmdlen; /* Sense command len */ 41 unsigned long sensedatalen; /* Sense data len */ 42 unsigned char sensecmd[6]; /* Sense command */ 43 unsigned long contr_stat; /* Controller Status */ 44 unsigned long trans_bytes; /* tranfered bytes */ 45 46 unsigned int priv; 47}ccb; 48 49/*----------------------------------------------------------- 50** 51** SCSI constants. 52** 53**----------------------------------------------------------- 54*/ 55 56/* 57** Messages 58*/ 59 60#define M_COMPLETE (0x00) 61#define M_EXTENDED (0x01) 62#define M_SAVE_DP (0x02) 63#define M_RESTORE_DP (0x03) 64#define M_DISCONNECT (0x04) 65#define M_ID_ERROR (0x05) 66#define M_ABORT (0x06) 67#define M_REJECT (0x07) 68#define M_NOOP (0x08) 69#define M_PARITY (0x09) 70#define M_LCOMPLETE (0x0a) 71#define M_FCOMPLETE (0x0b) 72#define M_RESET (0x0c) 73#define M_ABORT_TAG (0x0d) 74#define M_CLEAR_QUEUE (0x0e) 75#define M_INIT_REC (0x0f) 76#define M_REL_REC (0x10) 77#define M_TERMINATE (0x11) 78#define M_SIMPLE_TAG (0x20) 79#define M_HEAD_TAG (0x21) 80#define M_ORDERED_TAG (0x22) 81#define M_IGN_RESIDUE (0x23) 82#define M_IDENTIFY (0x80) 83 84#define M_X_MODIFY_DP (0x00) 85#define M_X_SYNC_REQ (0x01) 86#define M_X_WIDE_REQ (0x03) 87#define M_X_PPR_REQ (0x04) 88 89 90/* 91** Status 92*/ 93 94#define S_GOOD (0x00) 95#define S_CHECK_COND (0x02) 96#define S_COND_MET (0x04) 97#define S_BUSY (0x08) 98#define S_INT (0x10) 99#define S_INT_COND_MET (0x14) 100#define S_CONFLICT (0x18) 101#define S_TERMINATED (0x20) 102#define S_QUEUE_FULL (0x28) 103#define S_ILLEGAL (0xff) 104#define S_SENSE (0x80) 105 106/* 107 * Sense_keys 108 */ 109 110#define SENSE_NO_SENSE 0x0 111#define SENSE_RECOVERED_ERROR 0x1 112#define SENSE_NOT_READY 0x2 113#define SENSE_MEDIUM_ERROR 0x3 114#define SENSE_HARDWARE_ERROR 0x4 115#define SENSE_ILLEGAL_REQUEST 0x5 116#define SENSE_UNIT_ATTENTION 0x6 117#define SENSE_DATA_PROTECT 0x7 118#define SENSE_BLANK_CHECK 0x8 119#define SENSE_VENDOR_SPECIFIC 0x9 120#define SENSE_COPY_ABORTED 0xA 121#define SENSE_ABORTED_COMMAND 0xB 122#define SENSE_VOLUME_OVERFLOW 0xD 123#define SENSE_MISCOMPARE 0xE 124 125 126#define SCSI_CHANGE_DEF 0x40 /* Change Definition (Optional) */ 127#define SCSI_COMPARE 0x39 /* Compare (O) */ 128#define SCSI_COPY 0x18 /* Copy (O) */ 129#define SCSI_COP_VERIFY 0x3A /* Copy and Verify (O) */ 130#define SCSI_INQUIRY 0x12 /* Inquiry (MANDATORY) */ 131#define SCSI_LOG_SELECT 0x4C /* Log Select (O) */ 132#define SCSI_LOG_SENSE 0x4D /* Log Sense (O) */ 133#define SCSI_MODE_SEL6 0x15 /* Mode Select 6-byte (Device Specific) */ 134#define SCSI_MODE_SEL10 0x55 /* Mode Select 10-byte (Device Specific) */ 135#define SCSI_MODE_SEN6 0x1A /* Mode Sense 6-byte (Device Specific) */ 136#define SCSI_MODE_SEN10 0x5A /* Mode Sense 10-byte (Device Specific) */ 137#define SCSI_READ_BUFF 0x3C /* Read Buffer (O) */ 138#define SCSI_REQ_SENSE 0x03 /* Request Sense (MANDATORY) */ 139#define SCSI_SEND_DIAG 0x1D /* Send Diagnostic (O) */ 140#define SCSI_TST_U_RDY 0x00 /* Test Unit Ready (MANDATORY) */ 141#define SCSI_WRITE_BUFF 0x3B /* Write Buffer (O) */ 142/*************************************************************************** 143 * %%% Commands Unique to Direct Access Devices %%% 144 ***************************************************************************/ 145#define SCSI_COMPARE 0x39 /* Compare (O) */ 146#define SCSI_FORMAT 0x04 /* Format Unit (MANDATORY) */ 147#define SCSI_LCK_UN_CAC 0x36 /* Lock Unlock Cache (O) */ 148#define SCSI_PREFETCH 0x34 /* Prefetch (O) */ 149#define SCSI_MED_REMOVL 0x1E /* Prevent/Allow medium Removal (O) */ 150#define SCSI_READ6 0x08 /* Read 6-byte (MANDATORY) */ 151#define SCSI_READ10 0x28 /* Read 10-byte (MANDATORY) */ 152#define SCSI_RD_CAPAC 0x25 /* Read Capacity (MANDATORY) */ 153#define SCSI_RD_CAPAC10 SCSI_RD_CAPAC /* Read Capacity (10) */ 154#define SCSI_RD_CAPAC16 0x9e /* Read Capacity (16) */ 155#define SCSI_RD_DEFECT 0x37 /* Read Defect Data (O) */ 156#define SCSI_READ_LONG 0x3E /* Read Long (O) */ 157#define SCSI_REASS_BLK 0x07 /* Reassign Blocks (O) */ 158#define SCSI_RCV_DIAG 0x1C /* Receive Diagnostic Results (O) */ 159#define SCSI_RELEASE 0x17 /* Release Unit (MANDATORY) */ 160#define SCSI_REZERO 0x01 /* Rezero Unit (O) */ 161#define SCSI_SRCH_DAT_E 0x31 /* Search Data Equal (O) */ 162#define SCSI_SRCH_DAT_H 0x30 /* Search Data High (O) */ 163#define SCSI_SRCH_DAT_L 0x32 /* Search Data Low (O) */ 164#define SCSI_SEEK6 0x0B /* Seek 6-Byte (O) */ 165#define SCSI_SEEK10 0x2B /* Seek 10-Byte (O) */ 166#define SCSI_SEND_DIAG 0x1D /* Send Diagnostics (MANDATORY) */ 167#define SCSI_SET_LIMIT 0x33 /* Set Limits (O) */ 168#define SCSI_START_STP 0x1B /* Start/Stop Unit (O) */ 169#define SCSI_SYNC_CACHE 0x35 /* Synchronize Cache (O) */ 170#define SCSI_VERIFY 0x2F /* Verify (O) */ 171#define SCSI_WRITE6 0x0A /* Write 6-Byte (MANDATORY) */ 172#define SCSI_WRITE10 0x2A /* Write 10-Byte (MANDATORY) */ 173#define SCSI_WRT_VERIFY 0x2E /* Write and Verify (O) */ 174#define SCSI_WRITE_LONG 0x3F /* Write Long (O) */ 175#define SCSI_WRITE_SAME 0x41 /* Write Same (O) */ 176 177 178/**************************************************************************** 179 * decleration of functions which have to reside in the LowLevel Part Driver 180 */ 181 182void scsi_print_error(ccb *pccb); 183int scsi_exec(ccb *pccb); 184void scsi_bus_reset(void); 185void scsi_low_level_init(int busdevfunc); 186 187 188/*************************************************************************** 189 * functions residing inside cmd_scsi.c 190 */ 191void scsi_init(void); 192void scsi_scan(int mode); 193 194/** @return the number of scsi disks */ 195int scsi_get_disk_count(void); 196 197#define SCSI_IDENTIFY 0xC0 /* not used */ 198 199/* Hardware errors */ 200#define SCSI_SEL_TIME_OUT 0x00000101 /* Selection time out */ 201#define SCSI_HNS_TIME_OUT 0x00000102 /* Handshake */ 202#define SCSI_MA_TIME_OUT 0x00000103 /* Phase error */ 203#define SCSI_UNEXP_DIS 0x00000104 /* unexpected disconnect */ 204 205#define SCSI_INT_STATE 0x00010000 /* unknown Interrupt number is stored in 16 LSB */ 206 207#endif /* _SCSI_H */ 208