home *** CD-ROM | disk | FTP | other *** search
- #ifndef _AHA152X_H
- #define _AHA152X_H
-
- /*
- * $Id: aha152x.h,v 1.8 1995/01/21 22:11:07 root Exp root $
- */
-
- #if defined(__KERNEL__)
-
- #include "../block/blk.h"
- #include "scsi.h"
- #include <asm/io.h>
-
- int aha152x_detect(Scsi_Host_Template *);
- int aha152x_command(Scsi_Cmnd *);
- int aha152x_queue(Scsi_Cmnd *, void (*done)(Scsi_Cmnd *));
- int aha152x_abort(Scsi_Cmnd *);
- int aha152x_reset(Scsi_Cmnd *);
- int aha152x_biosparam(Disk *, int, int*);
-
- /* number of queueable commands
- (unless we support more than 1 cmd_per_lun this should do) */
- #define AHA152X_MAXQUEUE 7
-
- #define AHA152X_REVID "Adaptec 152x SCSI driver; $Revision: 1.8 $"
-
- /* Initial value of Scsi_Host entry */
- #define AHA152X { /* next */ NULL, \
- /* usage_count */ NULL, \
- /* name */ AHA152X_REVID, \
- /* detect */ aha152x_detect, \
- /* release */ NULL, \
- /* info */ NULL, \
- /* command */ aha152x_command, \
- /* queuecommand */ aha152x_queue, \
- /* abort */ aha152x_abort, \
- /* reset */ aha152x_reset, \
- /* slave_attach */ /* NULL */ 0, \
- /* bios_param */ aha152x_biosparam, \
- /* can_queue */ 1, \
- /* this_id */ 7, \
- /* sg_tablesize */ SG_ALL, \
- /* cmd_per_lun */ 1, \
- /* present */ 0, \
- /* unchecked_isa_dma */ 0, \
- /* use_clustering */ DISABLE_CLUSTERING }
- #endif
-
-
- /* port addresses */
- #define SCSISEQ (port_base+0x00) /* SCSI sequence control */
- #define SXFRCTL0 (port_base+0x01) /* SCSI transfer control 0 */
- #define SXFRCTL1 (port_base+0x02) /* SCSI transfer control 1 */
- #define SCSISIG (port_base+0x03) /* SCSI signal in/out */
- #define SCSIRATE (port_base+0x04) /* SCSI rate control */
- #define SELID (port_base+0x05) /* selection/reselection ID */
- #define SCSIID SELID /* SCSI ID */
- #define SCSIDAT (port_base+0x06) /* SCSI latched data */
- #define SCSIBUS (port_base+0x07) /* SCSI data bus */
- #define STCNT0 (port_base+0x08) /* SCSI transfer count 0 */
- #define STCNT1 (port_base+0x09) /* SCSI transfer count 1 */
- #define STCNT2 (port_base+0x0a) /* SCSI transfer count 2 */
- #define SSTAT0 (port_base+0x0b) /* SCSI interrupt status 0 */
- #define SSTAT1 (port_base+0x0c) /* SCSI interrupt status 1 */
- #define SSTAT2 (port_base+0x0d) /* SCSI interrupt status 2 */
- #define SCSITEST (port_base+0x0e) /* SCSI test control */
- #define SSTAT4 (port_base+0x0f) /* SCSI status 4 */
- #define SIMODE0 (port_base+0x10) /* SCSI interrupt mode 0 */
- #define SIMODE1 (port_base+0x11) /* SCSI interrupt mode 1 */
- #define DMACNTRL0 (port_base+0x12) /* DMA control 0 */
- #define DMACNTRL1 (port_base+0x13) /* DMA control 1 */
- #define DMASTAT (port_base+0x14) /* DMA status */
- #define FIFOSTAT (port_base+0x15) /* FIFO status */
- #define DATAPORT (port_base+0x16) /* DATA port */
- #define BRSTCNTRL (port_base+0x18) /* burst control */
- #define PORTA (port_base+0x1a) /* PORT A */
- #define PORTB (port_base+0x1b) /* PORT B */
- #define REV (port_base+0x1c) /* revision */
- #define STACK (port_base+0x1d) /* stack */
- #define TEST (port_base+0x1e) /* test register */
-
-
- /* bits and bitmasks to ports */
-
- /* SCSI sequence control */
- #define TEMODEO 0x80
- #define ENSELO 0x40
- #define ENSELI 0x20
- #define ENRESELI 0x10
- #define ENAUTOATNO 0x08
- #define ENAUTOATNI 0x04
- #define ENAUTOATNP 0x02
- #define SCSIRSTO 0x01
-
- /* SCSI transfer control 0 */
- #define SCSIEN 0x80
- #define DMAEN 0x40
- #define CH1 0x20
- #define CLRSTCNT 0x10
- #define SPIOEN 0x08
- #define CLRCH1 0x02
-
- /* SCSI transfer control 1 */
- #define BITBUCKET 0x80
- #define SWRAPEN 0x40
- #define ENSPCHK 0x20
- #define STIMESEL 0x18 /* mask */
- #define STIMESEL_ 3
- #define ENSTIMER 0x04
- #define BYTEALIGN 0x02
-
- /* SCSI signal IN */
- #define CDI 0x80
- #define IOI 0x40
- #define MSGI 0x20
- #define ATNI 0x10
- #define SELI 0x08
- #define BSYI 0x04
- #define REQI 0x02
- #define ACKI 0x01
-
- /* SCSI Phases */
- #define P_MASK (MSGI|CDI|IOI)
- #define P_DATAO (0)
- #define P_DATAI (IOI)
- #define P_CMD (CDI)
- #define P_STATUS (CDI|IOI)
- #define P_MSGO (MSGI|CDI)
- #define P_MSGI (MSGI|CDI|IOI)
-
- /* SCSI signal OUT */
- #define CDO 0x80
- #define IOO 0x40
- #define MSGO 0x20
- #define ATNO 0x10
- #define SELO 0x08
- #define BSYO 0x04
- #define REQO 0x02
- #define ACKO 0x01
-
- /* SCSI rate control */
- #define SXFR 0x70 /* mask */
- #define SXFR_ 4
- #define SOFS 0x0f /* mask */
-
- /* SCSI ID */
- #define OID 0x70
- #define OID_ 4
- #define TID 0x07
-
- /* SCSI transfer count */
- #define GETSTCNT() ( (GETPORT(STCNT2)<<16) \
- + (GETPORT(STCNT1)<< 8) \
- + GETPORT(STCNT0) )
-
- #define SETSTCNT(X) { SETPORT(STCNT2, ((X) & 0xFF0000) >> 16); \
- SETPORT(STCNT1, ((X) & 0x00FF00) >> 8); \
- SETPORT(STCNT0, ((X) & 0x0000FF) ); }
-
- /* SCSI interrupt status */
- #define TARGET 0x80
- #define SELDO 0x40
- #define SELDI 0x20
- #define SELINGO 0x10
- #define SWRAP 0x08
- #define SDONE 0x04
- #define SPIORDY 0x02
- #define DMADONE 0x01
-
- #define SETSDONE 0x80
- #define CLRSELDO 0x40
- #define CLRSELDI 0x20
- #define CLRSELINGO 0x10
- #define CLRSWRAP 0x08
- #define CLRSDONE 0x04
- #define CLRSPIORDY 0x02
- #define CLRDMADONE 0x01
-
- /* SCSI status 1 */
- #define SELTO 0x80
- #define ATNTARG 0x40
- #define SCSIRSTI 0x20
- #define PHASEMIS 0x10
- #define BUSFREE 0x08
- #define SCSIPERR 0x04
- #define PHASECHG 0x02
- #define REQINIT 0x01
-
- #define CLRSELTIMO 0x80
- #define CLRATNO 0x40
- #define CLRSCSIRSTI 0x20
- #define CLRBUSFREE 0x08
- #define CLRSCSIPERR 0x04
- #define CLRPHASECHG 0x02
- #define CLRREQINIT 0x01
-
- /* SCSI status 2 */
- #define SOFFSET 0x20
- #define SEMPTY 0x10
- #define SFULL 0x08
- #define SFCNT 0x07 /* mask */
-
- /* SCSI status 3 */
- #define SCSICNT 0xf0 /* mask */
- #define SCSICNT_ 4
- #define OFFCNT 0x0f /* mask */
-
- /* SCSI TEST control */
- #define SCTESTU 0x08
- #define SCTESTD 0x04
- #define STCTEST 0x01
-
- /* SCSI status 4 */
- #define SYNCERR 0x04
- #define FWERR 0x02
- #define FRERR 0x01
-
- #define CLRSYNCERR 0x04
- #define CLRFWERR 0x02
- #define CLRFRERR 0x01
-
- /* SCSI interrupt mode 0 */
- #define ENSELDO 0x40
- #define ENSELDI 0x20
- #define ENSELINGO 0x10
- #define ENSWRAP 0x08
- #define ENSDONE 0x04
- #define ENSPIORDY 0x02
- #define ENDMADONE 0x01
-
- /* SCSI interrupt mode 1 */
- #define ENSELTIMO 0x80
- #define ENATNTARG 0x40
- #define ENSCSIRST 0x20
- #define ENPHASEMIS 0x10
- #define ENBUSFREE 0x08
- #define ENSCSIPERR 0x04
- #define ENPHASECHG 0x02
- #define ENREQINIT 0x01
-
- /* DMA control 0 */
- #define ENDMA 0x80
- #define _8BIT 0x40
- #define DMA 0x20
- #define WRITE_READ 0x08
- #define INTEN 0x04
- #define RSTFIFO 0x02
- #define SWINT 0x01
-
- /* DMA control 1 */
- #define PWRDWN 0x80
- #define STK 0x07 /* mask */
-
- /* DMA status */
- #define ATDONE 0x80
- #define WORDRDY 0x40
- #define INTSTAT 0x20
- #define DFIFOFULL 0x10
- #define DFIFOEMP 0x08
-
- /* BURST control */
- #define BON 0xf0
- #define BOFF 0x0f
-
- /* TEST REGISTER */
- #define BOFFTMR 0x40
- #define BONTMR 0x20
- #define STCNTH 0x10
- #define STCNTM 0x08
- #define STCNTL 0x04
- #define SCSIBLK 0x02
- #define DMABLK 0x01
-
- /* On the AHA-152x board PORTA and PORTB contain
- some information about the board's configuration. */
- typedef union {
- struct {
- unsigned reserved:2; /* reserved */
- unsigned tardisc:1; /* Target disconnect: 0=disabled, 1=enabled */
- unsigned syncneg:1; /* Initial sync neg: 0=disabled, 1=enabled */
- unsigned msgclasses:2; /* Message classes
- 0=#4
- 1=#0, #1, #2, #3, #4
- 2=#0, #3, #4
- 3=#0, #4
- */
- unsigned boot:1; /* boot: 0=disabled, 1=enabled */
- unsigned dma:1; /* Transfer mode: 0=PIO; 1=DMA */
- unsigned id:3; /* SCSI-id */
- unsigned irq:2; /* IRQ-Channel: 0,3=12, 1=10, 2=11 */
- unsigned dmachan:2; /* DMA-Channel: 0=0, 1=5, 2=6, 3=7 */
- unsigned parity:1; /* SCSI-parity: 1=enabled 0=disabled */
- } fields;
- unsigned short port;
- } aha152x_config ;
-
- #define cf_parity fields.parity
- #define cf_dmachan fields.dmachan
- #define cf_irq fields.irq
- #define cf_id fields.id
- #define cf_dma fields.dma
- #define cf_boot fields.boot
- #define cf_msgclasses fields.msgclasses
- #define cf_syncneg fields.syncneg
- #define cf_tardisc fields.tardisc
- #define cf_port port
-
- /* Some macros to manipulate ports and their bits */
-
- #define SETPORT(PORT, VAL) \
- outb( (VAL), (PORT) )
-
- #define SETPORTP(PORT, VAL) \
- outb_p( (VAL), (PORT) )
-
- #define SETPORTW(PORT, VAL) \
- outw( (VAL), (PORT) )
-
- #define GETPORT(PORT) \
- inb( PORT )
-
- #define GETPORTW(PORT) \
- inw( PORT )
-
- #define SETBITS(PORT, BITS) \
- outb( (inb(PORT) | (BITS)), (PORT) )
-
- #define CLRBITS(PORT, BITS) \
- outb( (inb(PORT) & ~(BITS)), (PORT) )
-
- #define CLRSETBITS(PORT, CLR, SET) \
- outb( (inb(PORT) & ~(CLR)) | (SET) , (PORT) )
-
- #define TESTHI(PORT, BITS) \
- ((inb(PORT) & (BITS)) == BITS)
-
- #define TESTLO(PORT, BITS) \
- ((inb(PORT) & (BITS)) == 0)
-
- #ifdef DEBUG_AHA152X
- enum {
- debug_skipports =0x0001,
- debug_queue =0x0002,
- debug_intr =0x0004,
- debug_selection =0x0008,
- debug_msgo =0x0010,
- debug_msgi =0x0020,
- debug_status =0x0040,
- debug_cmd =0x0080,
- debug_datai =0x0100,
- debug_datao =0x0200,
- debug_abort =0x0400,
- debug_done =0x0800,
- debug_biosparam =0x1000,
- debug_phases =0x2000,
- debug_queues =0x4000,
- debug_reset =0x8000,
- };
- #endif
-
- #endif /* _AHA152X_H */
-