add MBASR_HARD

[unix-history] / usr / src / sys / vax / mba / mbareg.h

diff --git a/usr/src/sys/vax/mba/mbareg.h b/usr/src/sys/vax/mba/mbareg.h
index 97229f5..0fa86ac 100644 (file)
--- a/usr/src/sys/vax/mba/mbareg.h
+++ b/usr/src/sys/vax/mba/mbareg.h
@@ -1,4 +1,4 @@
-/*     mbareg.h        3.4     %G%     */
+/*     mbareg.h        4.12    81/03/03        */

 
 /*
  * VAX Massbus adapter registers
 
 /*
  * VAX Massbus adapter registers


@@ -6,39 +6,213 @@
 
 struct mba_regs
 {
 
 struct mba_regs
 {

-       int     mba_csr;
-       int     mba_cr;
-       int     mba_sr;
-       int     mba_var;
-       int     mba_bcr;
+       int     mba_csr;                /* configuration register */
+       int     mba_cr;                 /* control register */
+       int     mba_sr;                 /* status register */
+       int     mba_var;                /* virtual address register */
+       int     mba_bcr;                /* byte count register */

        int     mba_dr;
        int     mba_pad1[250];
        int     mba_dr;
        int     mba_pad1[250];

-       int     mba_erb[8][32];         /* external register base */
-       struct  pte mba_map[256];
+       struct mba_drv {                /* per drive registers */
+               int     mbd_cs1;                /* control status */
+               int     mbd_ds;                 /* drive status */
+               int     mbd_er1;                /* error register */
+               int     mbd_mr1;                /* maintenance register */
+               int     mbd_as;                 /* attention status */
+               int     mbd_da;                 /* desired address (disks) */
+#define        mbd_fc  mbd_da                          /* frame count (tapes) */
+               int     mbd_dt;                 /* drive type */
+               int     mbd_la;                 /* look ahead (disks) */
+#define        mbd_ck  mbd_la                          /* ??? (tapes) */
+               int     mbd_sn;                 /* serial number */
+               int     mbd_of;                 /* ??? */
+#define        mbd_tc  mbd_of                          /* ??? */
+               int     mbd_fill[22];
+       } mba_drv[8];
+       struct  pte mba_map[256];       /* io space virtual map */
+       int     mba_pad2[256*5];        /* to size of a nexus */

 };
 
 };
 

-#define        MBAINIT         0x1
-#define MBAIE          0x4
+/*
+ * Bits in mba_cr
+ */
+#define        MBAINIT         0x1             /* init mba */
+#define        MBAIE           0x4             /* enable mba interrupts */

 
 

-#define MBAEBITS       0xe0770
+/*
+ * Bits in mba_sr
+ */
+#define        MBS_DTBUSY      0x80000000      /* data transfer busy */
+#define        MBS_NRCONF      0x40000000      /* no response confirmation */
+#define        MBS_CRD         0x20000000      /* corrected read data */
+#define        MBS_CBHUNG      0x00800000      /* control bus hung */
+#define        MBS_PGE         0x00080000      /* programming error */
+#define        MBS_NED         0x00040000      /* non-existant drive */
+#define        MBS_MCPE        0x00020000      /* massbus control parity error */
+#define        MBS_ATTN        0x00010000      /* attention from massbus */
+#define        MBS_SPE         0x00004000      /* silo parity error */
+#define        MBS_DTCMP       0x00002000      /* data transfer completed */
+#define        MBS_DTABT       0x00001000      /* data transfer aborted */
+#define        MBS_DLT         0x00000800      /* data late */
+#define        MBS_WCKUP       0x00000400      /* write check upper */
+#define        MBS_WCKLWR      0x00000200      /* write check lower */
+#define        MBS_MXF         0x00000100      /* miss transfer error */
+#define        MBS_MBEXC       0x00000080      /* massbus exception */
+#define        MBS_MDPE        0x00000040      /* massbus data parity error */
+#define        MBS_MAPPE       0x00000020      /* page frame map parity error */
+#define        MBS_INVMAP      0x00000010      /* invalid map */
+#define        MBS_ERRCONF     0x00000008      /* error confirmation */
+#define        MBS_RDS         0x00000004      /* read data substitute */
+#define        MBS_ISTIMO      0x00000002      /* interface sequence timeout */
+#define        MBS_RDTIMO      0x00000001      /* read data timeout */

 
 

-#define        PHYSMBA0        ((struct mba_regs *)0x20010000)
-#define        PHYSMBA1        ((struct mba_regs *)0x20012000)
+#define MBASR_BITS \
+"\20\40DTBUSY\37NRCONF\36CRD\30CBHUNG\24PGE\23NED\22MCPE\21ATTN\
+\17SPE\16DTCMP\15DTABT\14DLT\13WCKUP\12WCKLWR\11MXF\10MBEXC\7MDPE\
+\6MAPPE\5INVMAP\4ERRCONF\3RDS\2ISTIMO\1RDTIMO"

 
 

-#define        mbadev(mba,unit)        ((struct device *)mba->mba_erb[unit])
+#define        MBASR_HARD      (MBS_PGE|MBS_ERRCONF|MBS_ISTIMO|MBS_RDTIMO)

 
 

-#ifdef KERNEL
-struct mba_info
-{
-       struct  mba_regs *mi_loc;       /* virtual mba */
-       struct  mba_regs *mi_phys;      /* physical mba */
-       struct  pte *mi_map;            /* page table base for nexus */
+#define MBAEBITS       (~(MBS_DTBUSY|MBS_CRD|MBS_ATTN|MBS_DTCMP))
+
+extern char    mbasr_bits[];
+
+/*
+ * Commands for mbd_cs1
+ */
+#define        MBD_WCOM        0x30
+#define        MBD_RCOM        0x38
+#define        MBD_GO          0x1
+
+/*
+ * Bits in mbd_ds.
+ */
+#define        MBD_DRY         0x80            /* drive ready */
+#define        MBD_MOL         0x1000          /* medium on line */
+#define        MBD_DPR         0x100           /* drive present */
+#define        MBD_ERR         0x4000          /* error in drive */
+
+/*
+ * Bits in mbd_dt
+ */
+#define        MBDT_NSA        0x8000          /* not sector addressible */
+#define        MBDT_TAP        0x4000          /* is a tape */
+#define        MBDT_MOH        0x2000          /* moving head */
+#define        MBDT_7CH        0x1000          /* 7 channel */
+#define        MBDT_DRQ        0x800           /* drive request required */
+#define        MBDT_SPR        0x400           /* slave present */
+
+#define        MBDT_TYPE       0x1ff
+#define        MBDT_MASK       (MBDT_NSA|MBDT_TAP|MBDT_TYPE)
+
+/* type codes for disk drives */
+#define        MBDT_RP04       020
+#define        MBDT_RP05       021
+#define        MBDT_RP06       022
+#define        MBDT_RP07       042
+#define        MBDT_RM03       024
+#define        MBDT_RM05       027
+#define        MBDT_RM80       026
+
+/* type codes for tape drives */
+#define        MBDT_TM03       050
+#define        MBDT_TE16       051
+#define        MBDT_TU45       052
+#define        MBDT_TU77       054
+#define        MBDT_TU78       0140            /* can't handle these (yet) */
+
+/*
+ * Each driver has an array of pointers to these structures, one for
+ * each device it is willing to handle.  At bootstrap time, the
+ * driver tables are filled in;
+ */
+struct mba_info {
+       struct  mba_driver *mi_driver;
+       short   mi_name;        /* two character generic name */
+       short   mi_unit;        /* unit number to the system */
+       short   mi_mbanum;      /* the mba it is on */
+       short   mi_drive;       /* controller on mba */
+       short   mi_slave;       /* slave to controller (TM03/TU16) */
+       short   mi_dk;          /* driver number for iostat */
+       short   mi_alive;       /* device exists */
+       short   mi_type;        /* driver specific unit type */
+       struct  buf mi_tab;     /* head of queue for this device */
+       struct  mba_info *mi_forw;
+/* we could compute these every time, but hereby save time */
+       struct  mba_regs *mi_mba;
+       struct  mba_drv *mi_drv;
+       struct  mba_hd *mi_hd;

 };
 
 };
 

-#define MBA0           ((struct mba_regs *)0x80064000)
-#define MBA1           ((struct mba_regs *)0x80066000)
+/*
+ * The initialization routine uses the information in the mbinit table
+ * to initialize the drive type routines in the drivers and the
+ * mbahd array summarizing which devices are hooked to which massbus slots.
+ */
+struct mba_hd {
+       short   mh_active;
+       short   mh_ndrive;
+       struct  mba_regs *mh_mba;       /* virt addr of mba */
+       struct  mba_regs *mh_physmba;   /* phys addr of mba */
+       struct  mba_info *mh_mbip[8];   /* what is attached */
+       struct  mba_info *mh_actf;      /* head of queue to transfer */
+       struct  mba_info *mh_actl;      /* tail of queue to transfer */
+};
+/*
+ * Values for flags; normally MH_NOSEEK will be set when there is
+ * only a single drive on an massbus.
+ */
+#define        MH_NOSEEK       1
+#define        MH_NOSEARCH     2
+
+/*
+ * Each massbus driver defines entries for a set of routines
+ * as well as an array of types which are acceptable to it.
+ */
+struct mba_driver {
+       int     (*md_dkinit)();         /* setup dk info (mspw) */
+       int     (*md_ustart)();         /* unit start routine */
+       int     (*md_start)();          /* setup a data transfer */
+       int     (*md_dtint)();          /* data transfer complete */
+       int     (*md_ndint)();          /* non-data transfer interrupt */
+       short   *md_type;               /* array of drive type codes */
+       struct  mba_info **md_info;     /* backpointers to mbinit structs */
+};
+
+/*
+ * Possible return values from unit start routines.
+ */
+#define        MBU_NEXT        0               /* skip to next operation */
+#define        MBU_BUSY        1               /* dual port busy; wait for intr */
+#define        MBU_STARTED     2               /* non-data transfer started */
+#define        MBU_DODATA      3               /* data transfer ready; start mba */

 
 

-int    mbanum[];
-struct mba_info mbainfo[];
-int    mbaact;
+/*
+ * Possible return values from data transfer interrupt handling routines
+ */
+#define        MBD_DONE        0               /* data transfer complete */
+#define        MBD_RETRY       1               /* error occurred, please retry */
+#define        MBD_RESTARTED   2               /* driver restarted i/o itself */
+
+/*
+ * Possible return values from non-data-transfer interrupt handling routines
+ */
+#define        MBN_DONE        0               /* non-data transfer complete */
+#define        MBN_RETRY       1               /* failed; retry the operation */
+
+/*
+ * Clear attention status for specified drive.
+ */
+#define        mbclrattn(mi)   ((mi)->mi_mba->mba_drv[0].mbd_as = 1 << (mi)->mi_drive)
+
+/*
+ * Kernel definitions related to mba.
+ */
+#ifdef KERNEL
+#if NMBA > 0
+struct mba_hd mba_hd[NMBA];
+extern Xmba0int(), Xmba1int(), Xmba2int(), Xmba3int();
+extern struct  mba_info mbinit[];      /* blanks for filling mba_info */
+int    nummba;
+#endif

 #endif
 #endif