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Diffstat (limited to 'linux/src/drivers/scsi/eata_generic.h')
-rw-r--r--linux/src/drivers/scsi/eata_generic.h414
1 files changed, 414 insertions, 0 deletions
diff --git a/linux/src/drivers/scsi/eata_generic.h b/linux/src/drivers/scsi/eata_generic.h
new file mode 100644
index 0000000..c884def
--- /dev/null
+++ b/linux/src/drivers/scsi/eata_generic.h
@@ -0,0 +1,414 @@
+/********************************************************
+* 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 min(a,b) ((a<b)?(a):(b))
+
+#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 (jiffies < i); \
+ 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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