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 27 typedef 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 */ 181 182 void scsi_print_error(ccb *pccb); 183 int scsi_exec(ccb *pccb); 184 void scsi_bus_reset(void); 185 void scsi_low_level_init(int busdevfunc); 186 187 188 /*************************************************************************** 189 * functions residing inside cmd_scsi.c 190 */ 191 void scsi_init(void); 192 void scsi_scan(int mode); 193 194 /** @return the number of scsi disks */ 195 int 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