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[/] [or1k/] [trunk/] [linux/] [linux-2.4/] [drivers/] [scsi/] [eata_generic.h] - Rev 1774
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/******************************************************** * Header file for eata_dma.c and eata_pio.c * * Linux EATA SCSI drivers * * (c) 1993-96 Michael Neuffer * * mike@i-Connect.Net * * neuffer@mail.uni-mainz.de * ********************************************************* * last change: 96/08/14 * ********************************************************/ #ifndef _EATA_GENERIC_H #define _EATA_GENERIC_H /********************************************* * Misc. definitions * *********************************************/ #ifndef TRUE #define TRUE 1 #endif #ifndef FALSE #define FALSE 0 #endif #define R_LIMIT 0x20000 #define MAXISA 4 #define MAXEISA 16 #define MAXPCI 16 #define MAXIRQ 16 #define MAXTARGET 16 #define MAXCHANNEL 3 #define IS_ISA 'I' #define IS_EISA 'E' #define IS_PCI 'P' #define BROKEN_INQUIRY 1 #define BUSMASTER 0xff #define PIO 0xfe #define EATA_SIGNATURE 0x45415441 /* BIG ENDIAN coded "EATA" sig. */ #define DPT_ID1 0x12 #define DPT_ID2 0x14 #define ATT_ID1 0x06 #define ATT_ID2 0x94 #define ATT_ID3 0x0 #define NEC_ID1 0x38 #define NEC_ID2 0xa3 #define NEC_ID3 0x82 #define EATA_CP_SIZE 44 #define MAX_PCI_DEVICES 32 /* Maximum # Of Devices Per Bus */ #define MAX_METHOD_2 16 /* Max Devices For Method 2 */ #define MAX_PCI_BUS 16 /* Maximum # Of Busses Allowed */ #define SG_SIZE 64 #define SG_SIZE_BIG 252 /* max. 8096 elements, 64k */ #define UPPER_DEVICE_QUEUE_LIMIT 64 /* The limit we have to set for the * device queue to keep the broken * midlevel SCSI code from producing * bogus timeouts */ #define TYPE_DISK_QUEUE 16 #define TYPE_TAPE_QUEUE 4 #define TYPE_ROM_QUEUE 4 #define TYPE_OTHER_QUEUE 2 #define FREE 0 #define OK 0 #define NO_TIMEOUT 0 #define USED 1 #define TIMEOUT 2 #define RESET 4 #define LOCKED 8 #define ABORTED 16 #define READ 0 #define WRITE 1 #define OTHER 2 #define HD(cmd) ((hostdata *)&(cmd->host->hostdata)) #define CD(cmd) ((struct eata_ccb *)(cmd->host_scribble)) #define SD(host) ((hostdata *)&(host->hostdata)) #define DELAY(x) { ulong flags, i; \ save_flags(flags); sti(); \ i = jiffies + (x * HZ); \ while (time_before(jiffies, i)) cpu_relax(); \ restore_flags(flags); } /*********************************************** * EATA Command & Register definitions * ***********************************************/ #define PCI_REG_DPTconfig 0x40 #define PCI_REG_PumpModeAddress 0x44 #define PCI_REG_PumpModeData 0x48 #define PCI_REG_ConfigParam1 0x50 #define PCI_REG_ConfigParam2 0x54 #define EATA_CMD_PIO_SETUPTEST 0xc6 #define EATA_CMD_PIO_READ_CONFIG 0xf0 #define EATA_CMD_PIO_SET_CONFIG 0xf1 #define EATA_CMD_PIO_SEND_CP 0xf2 #define EATA_CMD_PIO_RECEIVE_SP 0xf3 #define EATA_CMD_PIO_TRUNC 0xf4 #define EATA_CMD_RESET 0xf9 #define EATA_CMD_IMMEDIATE 0xfa #define EATA_CMD_DMA_READ_CONFIG 0xfd #define EATA_CMD_DMA_SET_CONFIG 0xfe #define EATA_CMD_DMA_SEND_CP 0xff #define ECS_EMULATE_SENSE 0xd4 #define EATA_GENERIC_ABORT 0x00 #define EATA_SPECIFIC_RESET 0x01 #define EATA_BUS_RESET 0x02 #define EATA_SPECIFIC_ABORT 0x03 #define EATA_QUIET_INTR 0x04 #define EATA_COLD_BOOT_HBA 0x06 /* Only as a last resort */ #define EATA_FORCE_IO 0x07 #define HA_CTRLREG 0x206 /* control register for HBA */ #define HA_CTRL_DISINT 0x02 /* CTRLREG: disable interrupts */ #define HA_CTRL_RESCPU 0x04 /* CTRLREG: reset processor */ #define HA_CTRL_8HEADS 0x08 /* CTRLREG: set for drives with* * >=8 heads (WD1003 rudimentary :-) */ #define HA_WCOMMAND 0x07 /* command register offset */ #define HA_WIFC 0x06 /* immediate command offset */ #define HA_WCODE 0x05 #define HA_WCODE2 0x04 #define HA_WDMAADDR 0x02 /* DMA address LSB offset */ #define HA_RAUXSTAT 0x08 /* aux status register offset*/ #define HA_RSTATUS 0x07 /* status register offset */ #define HA_RDATA 0x00 /* data register (16bit) */ #define HA_WDATA 0x00 /* data register (16bit) */ #define HA_ABUSY 0x01 /* aux busy bit */ #define HA_AIRQ 0x02 /* aux IRQ pending bit */ #define HA_SERROR 0x01 /* pr. command ended in error*/ #define HA_SMORE 0x02 /* more data soon to come */ #define HA_SCORR 0x04 /* data corrected */ #define HA_SDRQ 0x08 /* data request active */ #define HA_SSC 0x10 /* seek complete */ #define HA_SFAULT 0x20 /* write fault */ #define HA_SREADY 0x40 /* drive ready */ #define HA_SBUSY 0x80 /* drive busy */ #define HA_SDRDY HA_SSC+HA_SREADY+HA_SDRQ /********************************************** * Message definitions * **********************************************/ #define HA_NO_ERROR 0x00 /* No Error */ #define HA_ERR_SEL_TO 0x01 /* Selection Timeout */ #define HA_ERR_CMD_TO 0x02 /* Command Timeout */ #define HA_BUS_RESET 0x03 /* SCSI Bus Reset Received */ #define HA_INIT_POWERUP 0x04 /* Initial Controller Power-up */ #define HA_UNX_BUSPHASE 0x05 /* Unexpected Bus Phase */ #define HA_UNX_BUS_FREE 0x06 /* Unexpected Bus Free */ #define HA_BUS_PARITY 0x07 /* Bus Parity Error */ #define HA_SCSI_HUNG 0x08 /* SCSI Hung */ #define HA_UNX_MSGRJCT 0x09 /* Unexpected Message Rejected */ #define HA_RESET_STUCK 0x0a /* SCSI Bus Reset Stuck */ #define HA_RSENSE_FAIL 0x0b /* Auto Request-Sense Failed */ #define HA_PARITY_ERR 0x0c /* Controller Ram Parity Error */ #define HA_CP_ABORT_NA 0x0d /* Abort Message sent to non-active cmd */ #define HA_CP_ABORTED 0x0e /* Abort Message sent to active cmd */ #define HA_CP_RESET_NA 0x0f /* Reset Message sent to non-active cmd */ #define HA_CP_RESET 0x10 /* Reset Message sent to active cmd */ #define HA_ECC_ERR 0x11 /* Controller Ram ECC Error */ #define HA_PCI_PARITY 0x12 /* PCI Parity Error */ #define HA_PCI_MABORT 0x13 /* PCI Master Abort */ #define HA_PCI_TABORT 0x14 /* PCI Target Abort */ #define HA_PCI_STABORT 0x15 /* PCI Signaled Target Abort */ /********************************************** * Other definitions * **********************************************/ struct reg_bit { /* reading this one will clear the interrupt */ __u8 error:1; /* previous command ended in an error */ __u8 more:1; /* more DATA coming soon, poll BSY & DRQ (PIO) */ __u8 corr:1; /* data read was successfully corrected with ECC*/ __u8 drq:1; /* data request active */ __u8 sc:1; /* seek complete */ __u8 fault:1; /* write fault */ __u8 ready:1; /* drive ready */ __u8 busy:1; /* controller busy */ }; struct reg_abit { /* reading this won't clear the interrupt */ __u8 abusy:1; /* auxiliary busy */ __u8 irq:1; /* set when drive interrupt is asserted */ __u8 dummy:6; }; struct eata_register { /* EATA register set */ __u8 data_reg[2]; /* R, couldn't figure this one out */ __u8 cp_addr[4]; /* W, CP address register */ union { __u8 command; /* W, command code: [read|set] conf, send CP*/ struct reg_bit status; /* R, see register_bit1 */ __u8 statusbyte; } ovr; struct reg_abit aux_stat; /* R, see register_bit2 */ }; struct get_conf { /* Read Configuration Array */ __u32 len; /* Should return 0x22, 0x24, etc */ __u32 signature; /* Signature MUST be "EATA" */ __u8 version2:4, version:4; /* EATA Version level */ __u8 OCS_enabled:1, /* Overlap Command Support enabled */ TAR_support:1, /* SCSI Target Mode supported */ TRNXFR:1, /* Truncate Transfer Cmd not necessary * * Only used in PIO Mode */ MORE_support:1, /* MORE supported (only PIO Mode) */ DMA_support:1, /* DMA supported Driver uses only * * this mode */ DMA_valid:1, /* DRQ value in Byte 30 is valid */ ATA:1, /* ATA device connected (not supported) */ HAA_valid:1; /* Hostadapter Address is valid */ __u16 cppadlen; /* Number of pad bytes send after CD data * * set to zero for DMA commands */ __u8 scsi_id[4]; /* SCSI ID of controller 2-0 Byte 0 res. * * if not, zero is returned */ __u32 cplen; /* CP length: number of valid cp bytes */ __u32 splen; /* Number of bytes returned after * * Receive SP command */ __u16 queuesiz; /* max number of queueable CPs */ __u16 dummy; __u16 SGsiz; /* max number of SG table entries */ __u8 IRQ:4, /* IRQ used this HA */ IRQ_TR:1, /* IRQ Trigger: 0=edge, 1=level */ SECOND:1, /* This is a secondary controller */ DMA_channel:2; /* DRQ index, DRQ is 2comp of DRQX */ __u8 sync; /* device at ID 7 tru 0 is running in * * synchronous mode, this will disappear */ __u8 DSBLE:1, /* ISA i/o addressing is disabled */ FORCADR:1, /* i/o address has been forced */ SG_64K:1, SG_UAE:1, :4; __u8 MAX_ID:5, /* Max number of SCSI target IDs */ MAX_CHAN:3; /* Number of SCSI busses on HBA */ __u8 MAX_LUN; /* Max number of LUNs */ __u8 :3, AUTOTRM:1, M1_inst:1, ID_qest:1, /* Raidnum ID is questionable */ is_PCI:1, /* HBA is PCI */ is_EISA:1; /* HBA is EISA */ __u8 RAIDNUM; /* unique HBA identifier */ __u8 unused[474]; }; struct eata_sg_list { __u32 data; __u32 len; }; struct eata_ccb { /* Send Command Packet structure */ __u8 SCSI_Reset:1, /* Cause a SCSI Bus reset on the cmd */ HBA_Init:1, /* Cause Controller to reinitialize */ Auto_Req_Sen:1, /* Do Auto Request Sense on errors */ scatter:1, /* Data Ptr points to a SG Packet */ Resrvd:1, /* RFU */ Interpret:1, /* Interpret the SCSI cdb of own use */ DataOut:1, /* Data Out phase with command */ DataIn:1; /* Data In phase with command */ __u8 reqlen; /* Request Sense Length * * Valid if Auto_Req_Sen=1 */ __u8 unused[3]; __u8 FWNEST:1, /* send cmd to phys RAID component */ unused2:7; __u8 Phsunit:1, /* physical unit on mirrored pair */ I_AT:1, /* inhibit address translation */ I_HBA_C:1, /* HBA inhibit caching */ unused3:5; __u8 cp_id:5, /* SCSI Device ID of target */ cp_channel:3; /* SCSI Channel # of HBA */ __u8 cp_lun:3, :2, cp_luntar:1, /* CP is for target ROUTINE */ cp_dispri:1, /* Grant disconnect privilege */ cp_identify:1; /* Always TRUE */ __u8 cp_msg1; /* Message bytes 0-3 */ __u8 cp_msg2; __u8 cp_msg3; __u8 cp_cdb[12]; /* Command Descriptor Block */ __u32 cp_datalen; /* Data Transfer Length * * If scatter=1 len of sg package */ void *cp_viraddr; /* address of this ccb */ __u32 cp_dataDMA; /* Data Address, if scatter=1 * * address of scatter packet */ __u32 cp_statDMA; /* address for Status Packet */ __u32 cp_reqDMA; /* Request Sense Address, used if * * CP command ends with error */ /* Additional CP info begins here */ __u32 timestamp; /* Needed to measure command latency */ __u32 timeout; __u8 sizeindex; __u8 rw_latency; __u8 retries; __u8 status; /* status of this queueslot */ Scsi_Cmnd *cmd; /* address of cmd */ struct eata_sg_list *sg_list; }; struct eata_sp { __u8 hba_stat:7, /* HBA status */ EOC:1; /* True if command finished */ __u8 scsi_stat; /* Target SCSI status */ __u8 reserved[2]; __u32 residue_len; /* Number of bytes not transferred */ struct eata_ccb *ccb; /* Address set in COMMAND PACKET */ __u8 msg[12]; }; typedef struct hstd { __u8 vendor[9]; __u8 name[18]; __u8 revision[6]; __u8 EATA_revision; __u32 firmware_revision; __u8 HBA_number; __u8 bustype; /* bustype of HBA */ __u8 channel; /* # of avail. scsi channels */ __u8 state; /* state of HBA */ __u8 primary; /* true if primary */ __u8 more_support:1, /* HBA supports MORE flag */ immediate_support:1, /* HBA supports IMMEDIATE CMDs*/ broken_INQUIRY:1; /* This is an EISA HBA with * * broken INQUIRY */ __u8 do_latency; /* Latency measurement flag */ __u32 reads[13]; __u32 writes[13]; __u32 reads_lat[12][4]; __u32 writes_lat[12][4]; __u32 all_lat[4]; __u8 resetlevel[MAXCHANNEL]; __u32 last_ccb; /* Last used ccb */ __u32 cplen; /* size of CP in words */ __u16 cppadlen; /* pad length of cp in words */ __u16 queuesize; __u16 sgsize; /* # of entries in the SG list*/ __u16 devflags; /* bits set for detected devices */ __u8 hostid; /* SCSI ID of HBA */ __u8 moresupport; /* HBA supports MORE flag */ struct Scsi_Host *next; struct Scsi_Host *prev; struct eata_sp sp; /* status packet */ struct eata_ccb ccb[0]; /* ccb array begins here */ }hostdata; /* structure for max. 2 emulated drives */ struct drive_geom_emul { __u8 trans; /* translation flag 1=transl */ __u8 channel; /* SCSI channel number */ __u8 HBA; /* HBA number (prim/sec) */ __u8 id; /* drive id */ __u8 lun; /* drive lun */ __u32 heads; /* number of heads */ __u32 sectors; /* number of sectors */ __u32 cylinder; /* number of cylinders */ }; struct geom_emul { __u8 bios_drives; /* number of emulated drives */ struct drive_geom_emul drv[2]; /* drive structures */ }; #endif /* _EATA_GENERIC_H */ /* * Overrides for Emacs so that we almost follow Linus's tabbing style. * Emacs will notice this stuff at the end of the file and automatically * adjust the settings for this buffer only. This must remain at the end * of the file. * --------------------------------------------------------------------------- * Local variables: * c-indent-level: 4 * c-brace-imaginary-offset: 0 * c-brace-offset: -4 * c-argdecl-indent: 4 * c-label-offset: -4 * c-continued-statement-offset: 4 * c-continued-brace-offset: 0 * tab-width: 8 * End: */
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