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Diffstat (limited to 'drivers/scsi/eata_generic.h')
| -rw-r--r-- | drivers/scsi/eata_generic.h | 406 |
1 files changed, 406 insertions, 0 deletions
diff --git a/drivers/scsi/eata_generic.h b/drivers/scsi/eata_generic.h new file mode 100644 index 000000000000..34bce2c9e92e --- /dev/null +++ b/drivers/scsi/eata_generic.h @@ -0,0 +1,406 @@ +/******************************************************** +* 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->device->host->hostdata)) +#define CD(cmd) ((struct eata_ccb *)(cmd->host_scribble)) +#define SD(host) ((hostdata *)&(host->hostdata)) + +/*********************************************** + * 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 */ + struct 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: + */ |