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1.1 ! root 1: /******************************************************** ! 2: * Header file for eata_dma.c and eata_pio.c * ! 3: * Linux EATA SCSI drivers * ! 4: * (c) 1993,94,95 Michael Neuffer * ! 5: ********************************************************* ! 6: * last change: 95/11/07 * ! 7: ********************************************************/ ! 8: ! 9: ! 10: #ifndef _EATA_GENERIC_H ! 11: #define _EATA_GENERIC_H ! 12: ! 13: ! 14: ! 15: /********************************************* ! 16: * Misc. definitions * ! 17: *********************************************/ ! 18: ! 19: #ifndef TRUE ! 20: #define TRUE 1 ! 21: #endif ! 22: #ifndef FALSE ! 23: #define FALSE 0 ! 24: #endif ! 25: ! 26: #define min(a,b) ((a<b)?(a):(b)) ! 27: ! 28: #define R_LIMIT 0x20000 ! 29: ! 30: #define MAXISA 4 ! 31: #define MAXEISA 16 ! 32: #define MAXPCI 16 ! 33: #define MAXIRQ 16 ! 34: #define MAXTARGET 16 ! 35: #define MAXCHANNEL 3 ! 36: ! 37: #define IS_ISA 'I' ! 38: #define IS_EISA 'E' ! 39: #define IS_PCI 'P' ! 40: ! 41: #define BROKEN_INQUIRY 1 ! 42: ! 43: #define BUSMASTER 0xff ! 44: #define PIO 0xfe ! 45: ! 46: #define EATA_SIGNATURE 0x45415441 /* BIG ENDIAN coded "EATA" sig. */ ! 47: ! 48: #define DPT_ID1 0x12 ! 49: #define DPT_ID2 0x14 ! 50: ! 51: #define ATT_ID1 0x06 ! 52: #define ATT_ID2 0x94 ! 53: #define ATT_ID3 0x0 ! 54: ! 55: #define NEC_ID1 0x38 ! 56: #define NEC_ID2 0xa3 ! 57: #define NEC_ID3 0x82 ! 58: ! 59: ! 60: #define EATA_CP_SIZE 44 ! 61: ! 62: #define MAX_PCI_DEVICES 32 /* Maximum # Of Devices Per Bus */ ! 63: #define MAX_METHOD_2 16 /* Max Devices For Method 2 */ ! 64: #define MAX_PCI_BUS 16 /* Maximum # Of Busses Allowed */ ! 65: ! 66: #define SG_SIZE 64 ! 67: #define SG_SIZE_BIG 509 /* max. 509 elements, one 4k page */ ! 68: ! 69: #define C_P_L_DIV 2 /* 1 <= C_P_L_DIV <= 8 ! 70: * You can use this parameter to fine-tune ! 71: * the driver. Depending on the number of ! 72: * devices and their speed and ability to queue ! 73: * commands, you will get the best results with a ! 74: * value ! 75: * ~= numdevices-(devices_unable_to_queue_commands/2) ! 76: * The reason for this is that the disk driver ! 77: * tends to flood the queue, so that other ! 78: * drivers have problems to queue commands ! 79: * themselves. This can for example result in ! 80: * the effect that the tape stops during disk ! 81: * accesses. ! 82: */ ! 83: ! 84: #define FREE 0 ! 85: #define OK 0 ! 86: #define NO_TIMEOUT 0 ! 87: #define USED 1 ! 88: #define TIMEOUT 2 ! 89: #define RESET 4 ! 90: #define LOCKED 8 ! 91: ! 92: #define HD(cmd) ((hostdata *)&(cmd->host->hostdata)) ! 93: #define CD(cmd) ((struct eata_ccb *)(cmd->host_scribble)) ! 94: #define SD(host) ((hostdata *)&(host->hostdata)) ! 95: ! 96: #define DELAY(x) { __u32 i; i = jiffies + (x * HZ); while (jiffies < i) barrier(); } ! 97: #define DEL2(x) { __u32 i; for (i = 0; i < 0xffff * x; i++); } ! 98: ! 99: /*********************************************** ! 100: * EATA Command & Register definitions * ! 101: ***********************************************/ ! 102: #define PCI_REG_DPTconfig 0x40 ! 103: #define PCI_REG_PumpModeAddress 0x44 ! 104: #define PCI_REG_PumpModeData 0x48 ! 105: #define PCI_REG_ConfigParam1 0x50 ! 106: #define PCI_REG_ConfigParam2 0x54 ! 107: ! 108: ! 109: #define EATA_CMD_PIO_SETUPTEST 0xc6 ! 110: #define EATA_CMD_PIO_READ_CONFIG 0xf0 ! 111: #define EATA_CMD_PIO_SET_CONFIG 0xf1 ! 112: #define EATA_CMD_PIO_SEND_CP 0xf2 ! 113: #define EATA_CMD_PIO_RECEIVE_SP 0xf3 ! 114: #define EATA_CMD_PIO_TRUNC 0xf4 ! 115: ! 116: #define EATA_CMD_RESET 0xf9 ! 117: #define EATA_CMD_IMMEDIATE 0xfa ! 118: ! 119: #define EATA_CMD_DMA_READ_CONFIG 0xfd ! 120: #define EATA_CMD_DMA_SET_CONFIG 0xfe ! 121: #define EATA_CMD_DMA_SEND_CP 0xff ! 122: ! 123: #define ECS_EMULATE_SENSE 0xd4 ! 124: ! 125: #define EATA_GENERIC_ABORT 0x00 ! 126: #define EATA_SPECIFIC_RESET 0x01 ! 127: #define EATA_BUS_RESET 0x02 ! 128: #define EATA_SPECIFIC_ABORT 0x03 ! 129: #define EATA_QUIET_INTR 0x04 ! 130: #define EATA_COLD_BOOT_HBA 0x06 /* Only as a last resort */ ! 131: #define EATA_FORCE_IO 0x07 ! 132: ! 133: ! 134: #define HA_WCOMMAND 0x07 /* command register offset */ ! 135: #define HA_WCOMMAND2 0x06 /* immediate command offset */ ! 136: #define HA_WSUBCODE 0x05 ! 137: #define HA_WSUBLUN 0x04 ! 138: #define HA_WDMAADDR 0x02 /* DMA address LSB offset */ ! 139: #define HA_RAUXSTAT 0x08 /* aux status register offset*/ ! 140: #define HA_RSTATUS 0x07 /* status register offset */ ! 141: #define HA_RDATA 0x00 /* data register (16bit) */ ! 142: ! 143: #define HA_ABUSY 0x01 /* aux busy bit */ ! 144: #define HA_AIRQ 0x02 /* aux IRQ pending bit */ ! 145: #define HA_SERROR 0x01 /* pr. command ended in error*/ ! 146: #define HA_SMORE 0x02 /* more data soon to come */ ! 147: #define HA_SCORR 0x04 /* data corrected */ ! 148: #define HA_SDRQ 0x08 /* data request active */ ! 149: #define HA_SSC 0x10 /* seek complete */ ! 150: #define HA_SFAULT 0x20 /* write fault */ ! 151: #define HA_SREADY 0x40 /* drive ready */ ! 152: #define HA_SBUSY 0x80 /* drive busy */ ! 153: #define HA_SDRDY HA_SSC+HA_SREADY+HA_SDRQ ! 154: ! 155: /********************************************** ! 156: * Message definitions * ! 157: **********************************************/ ! 158: ! 159: #define HA_NO_ERROR 0x00 /* No Error */ ! 160: #define HA_ERR_SEL_TO 0x01 /* Selection Timeout */ ! 161: #define HA_ERR_CMD_TO 0x02 /* Command Timeout */ ! 162: #define HA_ERR_RESET 0x03 /* SCSI Bus Reset Received */ ! 163: #define HA_INIT_POWERUP 0x04 /* Initial Controller Power-up */ ! 164: #define HA_UNX_BUSPHASE 0x05 /* Unexpected Bus Phase */ ! 165: #define HA_UNX_BUS_FREE 0x06 /* Unexpected Bus Free */ ! 166: #define HA_BUS_PARITY 0x07 /* Bus Parity Error */ ! 167: #define HA_SCSI_HUNG 0x08 /* SCSI Hung */ ! 168: #define HA_UNX_MSGRJCT 0x09 /* Unexpected Message Rejected */ ! 169: #define HA_RESET_STUCK 0x0a /* SCSI Bus Reset Stuck */ ! 170: #define HA_RSENSE_FAIL 0x0b /* Auto Request-Sense Failed */ ! 171: #define HA_PARITY_ERR 0x0c /* Controller Ram Parity Error */ ! 172: #define HA_CP_ABORT_NA 0x0d /* Abort Message sent to non-active cmd */ ! 173: #define HA_CP_ABORTED 0x0e /* Abort Message sent to active cmd */ ! 174: #define HA_CP_RESET_NA 0x0f /* Reset Message sent to non-active cmd */ ! 175: #define HA_CP_RESET 0x10 /* Reset Message sent to active cmd */ ! 176: #define HA_ECC_ERR 0x11 /* Controller Ram ECC Error */ ! 177: #define HA_PCI_PARITY 0x12 /* PCI Parity Error */ ! 178: #define HA_PCI_MABORT 0x13 /* PCI Master Abort */ ! 179: #define HA_PCI_TABORT 0x14 /* PCI Target Abort */ ! 180: #define HA_PCI_STABORT 0x15 /* PCI Signaled Target Abort */ ! 181: ! 182: /********************************************** ! 183: * Other definitions * ! 184: **********************************************/ ! 185: ! 186: struct reg_bit { /* reading this one will clear the interrupt */ ! 187: __u8 error:1; /* previous command ended in an error */ ! 188: __u8 more:1; /* more DATA coming soon, poll BSY & DRQ (PIO) */ ! 189: __u8 corr:1; /* data read was successfully corrected with ECC*/ ! 190: __u8 drq:1; /* data request active */ ! 191: __u8 sc:1; /* seek complete */ ! 192: __u8 fault:1; /* write fault */ ! 193: __u8 ready:1; /* drive ready */ ! 194: __u8 busy:1; /* controller busy */ ! 195: }; ! 196: ! 197: struct reg_abit { /* reading this won't clear the interrupt */ ! 198: __u8 abusy:1; /* auxiliary busy */ ! 199: __u8 irq:1; /* set when drive interrupt is asserted */ ! 200: __u8 dummy:6; ! 201: }; ! 202: ! 203: struct eata_register { /* EATA register set */ ! 204: __u8 data_reg[2]; /* R, couldn't figure this one out */ ! 205: __u8 cp_addr[4]; /* W, CP address register */ ! 206: union { ! 207: __u8 command; /* W, command code: [read|set] conf, send CP*/ ! 208: struct reg_bit status; /* R, see register_bit1 */ ! 209: __u8 statusbyte; ! 210: } ovr; ! 211: struct reg_abit aux_stat; /* R, see register_bit2 */ ! 212: }; ! 213: ! 214: struct get_conf { /* Read Configuration Array */ ! 215: __u32 len; /* Should return 0x22, 0x24, etc */ ! 216: __u32 signature; /* Signature MUST be "EATA" */ ! 217: __u8 version2:4, ! 218: version:4; /* EATA Version level */ ! 219: __u8 OCS_enabled:1, /* Overlap Command Support enabled */ ! 220: TAR_support:1, /* SCSI Target Mode supported */ ! 221: TRNXFR:1, /* Truncate Transfer Cmd not necessary * ! 222: * Only used in PIO Mode */ ! 223: MORE_support:1, /* MORE supported (only PIO Mode) */ ! 224: DMA_support:1, /* DMA supported Driver uses only * ! 225: * this mode */ ! 226: DMA_valid:1, /* DRQ value in Byte 30 is valid */ ! 227: ATA:1, /* ATA device connected (not supported) */ ! 228: HAA_valid:1; /* Hostadapter Address is valid */ ! 229: ! 230: __u16 cppadlen; /* Number of pad bytes send after CD data * ! 231: * set to zero for DMA commands */ ! 232: __u8 scsi_id[4]; /* SCSI ID of controller 2-0 Byte 0 res. * ! 233: * if not, zero is returned */ ! 234: __u32 cplen; /* CP length: number of valid cp bytes */ ! 235: __u32 splen; /* Number of bytes returned after * ! 236: * Receive SP command */ ! 237: __u16 queuesiz; /* max number of queueable CPs */ ! 238: __u16 dummy; ! 239: __u16 SGsiz; /* max number of SG table entries */ ! 240: __u8 IRQ:4, /* IRQ used this HA */ ! 241: IRQ_TR:1, /* IRQ Trigger: 0=edge, 1=level */ ! 242: SECOND:1, /* This is a secondary controller */ ! 243: DMA_channel:2; /* DRQ index, DRQ is 2comp of DRQX */ ! 244: __u8 sync; /* device at ID 7 tru 0 is running in * ! 245: * synchronous mode, this will disappear */ ! 246: __u8 DSBLE:1, /* ISA i/o addressing is disabled */ ! 247: FORCADR:1, /* i/o address has been forced */ ! 248: SG_64K:1, ! 249: SG_UAE:1, ! 250: :4; ! 251: __u8 MAX_ID:5, /* Max number of SCSI target IDs */ ! 252: MAX_CHAN:3; /* Number of SCSI busses on HBA */ ! 253: __u8 MAX_LUN; /* Max number of LUNs */ ! 254: __u8 :3, ! 255: AUTOTRM:1, ! 256: M1_inst:1, ! 257: ID_qest:1, /* Raidnum ID is questionable */ ! 258: is_PCI:1, /* HBA is PCI */ ! 259: is_EISA:1; /* HBA is EISA */ ! 260: __u8 unused[478]; ! 261: }; ! 262: ! 263: struct eata_sg_list ! 264: { ! 265: __u32 data; ! 266: __u32 len; ! 267: }; ! 268: ! 269: struct eata_ccb { /* Send Command Packet structure */ ! 270: ! 271: __u8 SCSI_Reset:1, /* Cause a SCSI Bus reset on the cmd */ ! 272: HBA_Init:1, /* Cause Controller to reinitialize */ ! 273: Auto_Req_Sen:1, /* Do Auto Request Sense on errors */ ! 274: scatter:1, /* Data Ptr points to a SG Packet */ ! 275: Resrvd:1, /* RFU */ ! 276: Interpret:1, /* Interpret the SCSI cdb of own use */ ! 277: DataOut:1, /* Data Out phase with command */ ! 278: DataIn:1; /* Data In phase with command */ ! 279: __u8 reqlen; /* Request Sense Length * ! 280: * Valid if Auto_Req_Sen=1 */ ! 281: __u8 unused[3]; ! 282: __u8 FWNEST:1, /* send cmd to phys RAID component */ ! 283: unused2:7; ! 284: __u8 Phsunit:1, /* physical unit on mirrored pair */ ! 285: I_AT:1, /* inhibit address translation */ ! 286: I_HBA_C:1, /* HBA inhibit caching */ ! 287: unused3:5; ! 288: ! 289: __u8 cp_id:5, /* SCSI Device ID of target */ ! 290: cp_channel:3; /* SCSI Channel # of HBA */ ! 291: __u8 cp_lun:3, ! 292: :2, ! 293: cp_luntar:1, /* CP is for target ROUTINE */ ! 294: cp_dispri:1, /* Grant disconnect privilege */ ! 295: cp_identify:1; /* Always TRUE */ ! 296: __u8 cp_msg1; /* Message bytes 0-3 */ ! 297: __u8 cp_msg2; ! 298: __u8 cp_msg3; ! 299: __u8 cp_cdb[12]; /* Command Descriptor Block */ ! 300: __u32 cp_datalen; /* Data Transfer Length * ! 301: * If scatter=1 len of sg package */ ! 302: void *cp_viraddr; /* address of this ccb */ ! 303: __u32 cp_dataDMA; /* Data Address, if scatter=1 * ! 304: * address of scatter packet */ ! 305: __u32 cp_statDMA; /* address for Status Packet */ ! 306: __u32 cp_reqDMA; /* Request Sense Address, used if * ! 307: * CP command ends with error */ ! 308: /* Additional CP info begins here */ ! 309: __u32 timestamp; /* Needed to measure command latency */ ! 310: __u32 timeout; ! 311: __u8 sizeindex; ! 312: __u8 rw_latency; ! 313: __u8 retries; ! 314: __u8 status; /* status of this queueslot */ ! 315: Scsi_Cmnd *cmd; /* address of cmd */ ! 316: struct eata_sg_list *sg_list; ! 317: }; ! 318: ! 319: ! 320: struct eata_sp { ! 321: __u8 hba_stat:7, /* HBA status */ ! 322: EOC:1; /* True if command finished */ ! 323: __u8 scsi_stat; /* Target SCSI status */ ! 324: __u8 reserved[2]; ! 325: __u32 residue_len; /* Number of bytes not transferred */ ! 326: struct eata_ccb *ccb; /* Address set in COMMAND PACKET */ ! 327: __u8 msg[12]; ! 328: }; ! 329: ! 330: typedef struct hstd { ! 331: __u8 vendor[9]; ! 332: __u8 name[18]; ! 333: __u8 revision[6]; ! 334: __u8 EATA_revision; ! 335: __u8 bustype; /* bustype of HBA */ ! 336: __u8 channel; /* # of avail. scsi channels */ ! 337: __u8 state; /* state of HBA */ ! 338: __u8 primary; /* true if primary */ ! 339: __u8 broken_INQUIRY:1; /* This is an EISA HBA with * ! 340: * broken INQUIRY */ ! 341: __u8 do_latency; /* Latency measurement flag */ ! 342: __u32 reads[13]; ! 343: __u32 writes[13]; ! 344: __u32 reads_lat[12][4]; ! 345: __u32 writes_lat[12][4]; ! 346: /* state of Target (RESET,..) */ ! 347: __u8 t_state[MAXCHANNEL][MAXTARGET]; ! 348: /* timeouts on target */ ! 349: __u32 t_timeout[MAXCHANNEL][MAXTARGET]; ! 350: __u32 last_ccb; /* Last used ccb */ ! 351: __u32 cplen; /* size of CP in words */ ! 352: __u16 cppadlen; /* pad length of cp in words */ ! 353: __u8 hostid; /* SCSI ID of HBA */ ! 354: __u8 devflags; /* bits set for detected devices */ ! 355: __u8 moresupport; /* HBA supports MORE flag */ ! 356: struct Scsi_Host *next; ! 357: struct Scsi_Host *prev; ! 358: struct eata_sp sp; /* status packet */ ! 359: struct eata_ccb ccb[0]; /* ccb array begins here */ ! 360: }hostdata; ! 361: ! 362: /* structure for max. 2 emulated drives */ ! 363: struct drive_geom_emul { ! 364: __u8 trans; /* translation flag 1=transl */ ! 365: __u8 channel; /* SCSI channel number */ ! 366: __u8 HBA; /* HBA number (prim/sec) */ ! 367: __u8 id; /* drive id */ ! 368: __u8 lun; /* drive lun */ ! 369: __u32 heads; /* number of heads */ ! 370: __u32 sectors; /* number of sectors */ ! 371: __u32 cylinder; /* number of cylinders */ ! 372: }; ! 373: ! 374: struct geom_emul { ! 375: __u8 bios_drives; /* number of emulated drives */ ! 376: struct drive_geom_emul drv[2]; /* drive structures */ ! 377: }; ! 378: ! 379: #endif /* _EATA_GENERIC_H */ ! 380: ! 381: /* ! 382: * Overrides for Emacs so that we almost follow Linus's tabbing style. ! 383: * Emacs will notice this stuff at the end of the file and automatically ! 384: * adjust the settings for this buffer only. This must remain at the end ! 385: * of the file. ! 386: * --------------------------------------------------------------------------- ! 387: * Local variables: ! 388: * c-indent-level: 4 ! 389: * c-brace-imaginary-offset: 0 ! 390: * c-brace-offset: -4 ! 391: * c-argdecl-indent: 4 ! 392: * c-label-offset: -4 ! 393: * c-continued-statement-offset: 4 ! 394: * c-continued-brace-offset: 0 ! 395: * tab-width: 8 ! 396: * End: ! 397: */
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