siivar.h revision 1.2
1 1.2 ad /* $NetBSD: siivar.h,v 1.2 2006/07/29 19:10:57 ad Exp $ */ 2 1.2 ad 3 1.2 ad #ifndef _SIIVAR_H 4 1.2 ad #define _SIIVAR_H 5 1.2 ad 6 1.2 ad /* 7 1.2 ad * This structure contains information that a SCSI interface controller 8 1.2 ad * needs to execute a SCSI command. 9 1.2 ad */ 10 1.2 ad typedef struct ScsiCmd { 11 1.2 ad int unit; /* unit number passed to device done routine */ 12 1.2 ad int flags; /* control flags for this command (see below) */ 13 1.2 ad int buflen; /* length of the data buffer in bytes */ 14 1.2 ad char *buf; /* pointer to data buffer for this command */ 15 1.2 ad int cmdlen; /* length of data in cmdbuf */ 16 1.2 ad u_char *cmd; /* buffer for the SCSI command */ 17 1.2 ad int error; /* compatibility hack for new scsi */ 18 1.2 ad int lun; /* LUN for MI SCSI */ 19 1.2 ad struct callout timo_ch; /* timeout callout handle */ 20 1.2 ad } ScsiCmd; 21 1.2 ad 22 1.2 ad typedef struct scsi_state { 23 1.2 ad int statusByte; /* status byte returned during STATUS_PHASE */ 24 1.2 ad int dmaDataPhase; /* which data phase to expect */ 25 1.2 ad int dmaCurPhase; /* SCSI phase if DMA is in progress */ 26 1.2 ad int dmaPrevPhase; /* SCSI phase of DMA suspended by disconnect */ 27 1.2 ad u_short *dmaAddr[2]; /* DMA buffer memory address */ 28 1.2 ad int dmaBufIndex; /* which of the above is currently in use */ 29 1.2 ad int dmalen; /* amount to transfer in this chunk */ 30 1.2 ad int cmdlen; /* total remaining amount of cmd to transfer */ 31 1.2 ad u_char *cmd; /* current pointer within scsicmd->cmd */ 32 1.2 ad int buflen; /* total remaining amount of data to transfer */ 33 1.2 ad char *buf; /* current pointer within scsicmd->buf */ 34 1.2 ad u_short flags; /* see below */ 35 1.2 ad u_short prevComm; /* command reg before disconnect */ 36 1.2 ad u_short dmaCtrl; /* DMA control register if disconnect */ 37 1.2 ad u_short dmaAddrL; /* DMA address register if disconnect */ 38 1.2 ad u_short dmaAddrH; /* DMA address register if disconnect */ 39 1.2 ad u_short dmaCnt; /* DMA count if disconnect */ 40 1.2 ad u_short dmaByte; /* DMA byte if disconnect on odd boundary */ 41 1.2 ad u_short dmaReqAck; /* DMA synchronous xfer offset or 0 if async */ 42 1.2 ad } State; 43 1.2 ad 44 1.2 ad /* state flags */ 45 1.2 ad #define FIRST_DMA 0x01 /* true if no data DMA started yet */ 46 1.2 ad #define PARITY_ERR 0x02 /* true if parity error seen */ 47 1.2 ad 48 1.2 ad #define SII_NCMD 8 49 1.2 ad struct siisoftc { 50 1.2 ad struct device sc_dev; /* us as a device */ 51 1.2 ad struct scsipi_channel sc_channel; 52 1.2 ad struct scsipi_adapter sc_adapter; /* scsipi adapter glue */ 53 1.2 ad ScsiCmd sc_cmd_fake[SII_NCMD]; /* XXX - hack!!! */ 54 1.2 ad struct scsipi_xfer *sc_xs[SII_NCMD]; /* XXX - hack!!! */ 55 1.2 ad void *sc_buf; /* DMA buffer (may be special mem) */ 56 1.2 ad SIIRegs *sc_regs; /* HW address of SII controller chip */ 57 1.2 ad int sc_flags; 58 1.2 ad int sc_target; /* target SCSI ID if connected */ 59 1.2 ad ScsiCmd *sc_cmd[SII_NCMD]; /* active command indexed by ID */ 60 1.2 ad void (*sii_copytobuf) __P((u_short *src, volatile u_short *dst, int ln)); 61 1.2 ad void (*sii_copyfrombuf) __P((volatile u_short *src, char *dst, int len)); 62 1.2 ad 63 1.2 ad State sc_st[SII_NCMD]; /* state info for each active command */ 64 1.2 ad }; 65 1.2 ad 66 1.2 ad int siiintr __P((void *sc)); 67 1.2 ad 68 1.2 ad /* Machine-indepedent back-end attach entry point */ 69 1.2 ad 70 1.2 ad void sii_scsi_request __P((struct scsipi_channel *, 71 1.2 ad scsipi_adapter_req_t, void *)); 72 1.2 ad void siiattach __P((struct siisoftc *)); 73 1.2 ad 74 1.2 ad #endif /* _SIIVAR_H */ 75
Indexes created Sun Sep 28 16:09:52 GMT 2025