/* header file for DIO boards for the HP300 architecture. * Maybe this should handle DIO-II later? * The general structure of this is vaguely based on how * the Amiga port handles Zorro boards. * Copyright (C) Peter Maydell 05/1998 <pmaydell@chiark.greenend.org.uk> * * The board IDs are from the NetBSD kernel, which for once provided * helpful comments... * * This goes with arch/m68k/hp300/dio.c */#ifndef _LINUX_DIO_H#define _LINUX_DIO_H/* The DIO boards in a system are distinguished by 'select codes' which  * range from 0-63 (DIO) and 132-255 (DIO-II).  * The DIO board with select code sc is located at physical address  *     0x600000 + sc * 0x10000 * So DIO cards cover [0x600000-0x800000); the areas [0x200000-0x400000) and * [0x800000-0x1000000) are for additional space required by things * like framebuffers. [0x400000-0x600000) is for miscellaneous internal I/O. * On Linux, this is currently all mapped into the virtual address space * at 0xf0000000 on bootup. * DIO-II boards are at 0x1000000 + (sc - 132) * 0x400000 * which is address range [0x1000000-0x20000000) -- too big to map completely, * so currently we just don't handle DIO-II boards.  It wouldn't be hard to  * do with ioremap() though. */#ifdef __KERNEL__/* DIO/DIO-II boards all have the following 8bit registers. * These are offsets from the base of the device. */#define DIO_IDOFF     0x01                        /* primary device ID */#define DIO_IPLOFF    0x03                        /* interrupt priority level */#define DIO_SECIDOFF  0x15                        /* secondary device ID */#define DIOII_SIZEOFF 0x101                       /* device size, DIO-II only *//* The internal HPIB device is special; this is its physaddr; its select code is 7.  * The reason why we have to treat it specially is because apparently it's broken: * the device ID isn't consistent/reliable. *sigh* */#define DIO_IHPIBADDR 0x47800#define DIO_IHPIBSCODE 7/* If we don't have the internal HPIB defined, then treat select code 7 like * any other. If we *do* have internal HPIB, then we just have to assume that * select code 7 is the internal HPIB regardless of the ID register :-< */#define CONFIG_IHPIB /* hack hack : not yet a proper config option */#ifdef CONFIG_IHPIB#define DIO_ISIHPIB(scode) ((scode) == DIO_IHPIBSCODE)#else#define DIO_ISIHPIB(scode) 0#endif#define DIO_VIRADDRBASE 0xf0000000                /* vir addr where IOspace is mapped */#define DIO_BASE                0x600000        /* start of DIO space */#define DIO_END                 0x1000000       /* end of DIO space */#define DIO_DEVSIZE             0x10000         /* size of a DIO device */#define DIOII_BASE              0x01000000      /* start of DIO-II space */#define DIOII_END               0x20000000      /* end of DIO-II space */#define DIOII_DEVSIZE           0x00400000      /* size of a DIO-II device *//* Highest valid select code. If we add DIO-II support this should become * 256 for everything except HP320, which only has DIO. */#define DIO_SCMAX 32                             #define DIOII_SCBASE 132 /* lowest DIO-II select code */#define DIO_SCINHOLE(scode) (((scode) >= 32) && ((scode) < DIOII_SCBASE))/* macros to read device IDs, given base address */#define DIO_ID(baseaddr) readb((baseaddr) + DIO_IDOFF)#define DIO_SECID(baseaddr) readb((baseaddr) + DIO_SECIDOFF)/* extract the interrupt level */#define DIO_IPL(baseaddr) (((readb((baseaddr) + DIO_IPLOFF) >> 4) & 0x03) + 3)/* find the size of a DIO-II board's address space. * DIO boards are all fixed length. */#define DIOII_SIZE(baseaddr) ((readb((baseaddr) + DIOII_SIZEOFF) + 1) * 0x100000)/* general purpose macro for both DIO and DIO-II */#define DIO_SIZE(scode, base) (DIO_ISDIOII((scode)) ? DIOII_SIZE((base)) : DIO_DEVSIZE)/* The hardware has primary and secondary IDs; we encode these in a single * int as PRIMARY ID & (SECONDARY ID << 8). * In practice this is only important for framebuffers, * and everybody else just sets ID fields equal to the DIO_ID_FOO value. */#define DIO_ENCODE_ID(pr,sec) ((((int)sec & 0xff) << 8) & ((int)pr & 0xff))/* macro to determine whether a given primary ID requires a secondary ID byte */#define DIO_NEEDSSECID(id) ((id) == DIO_ID_FBUFFER)/* Now a whole slew of macros giving device IDs and descriptive strings: */#define DIO_ID_DCA0     0x02 /* 98644A serial */#define DIO_DESC_DCA0 "98644A DCA0 serial"#define DIO_ID_DCA0REM  0x82 /* 98644A serial */#define DIO_DESC_DCA0REM "98644A DCA0REM serial"#define DIO_ID_DCA1     0x42 /* 98644A serial */#define DIO_DESC_DCA1 "98644A DCA1 serial"#define DIO_ID_DCA1REM  0xc2 /* 98644A serial */#define DIO_DESC_DCA1REM "98644A DCA1REM serial"#define DIO_ID_DCM      0x05 /* 98642A serial MUX */#define DIO_DESC_DCM "98642A DCM serial MUX"#define DIO_ID_DCMREM   0x85 /* 98642A serial MUX */#define DIO_DESC_DCMREM "98642A DCMREM serial MUX"#define DIO_ID_LAN      0x15 /* 98643A LAN */#define DIO_DESC_LAN "98643A LAN"#define DIO_ID_FHPIB    0x08 /* 98625A/98625B fast HP-IB */#define DIO_DESC_FHPIB "98625A/98625B fast HPIB"#define DIO_ID_NHPIB    0x80 /* 98624A HP-IB (normal ie slow) */#define DIO_DESC_NHPIB "98624A HPIB"#define DIO_ID_IHPIB    0x00 /* internal HPIB (not its real ID, it hasn't got one! */#define DIO_DESC_IHPIB "internal HPIB"#define DIO_ID_SCSI0    0x07 /* 98625A SCSI */#define DIO_DESC_SCSI0 "98625A SCSI0"#define DIO_ID_SCSI1    0x27 /* ditto */#define DIO_DESC_SCSI1 "98625A SCSI1"#define DIO_ID_SCSI2    0x47 /* ditto */#define DIO_DESC_SCSI2 "98625A SCSI2"#define DIO_ID_SCSI3    0x67 /* ditto */#define DIO_DESC_SCSI3 "98625A SCSI3"#define DIO_ID_FBUFFER  0x39 /* framebuffer: flavour is distinguished by secondary ID */#define DIO_DESC_FBUFFER "bitmapped display"/* the NetBSD kernel source is a bit unsure as to what these next IDs actually do :-> */#define DIO_ID_MISC0    0x03 /* 98622A */#define DIO_DESC_MISC0 "98622A"#define DIO_ID_MISC1    0x04 /* 98623A */#define DIO_DESC_MISC1 "98623A"#define DIO_ID_PARALLEL 0x06 /* internal parallel */#define DIO_DESC_PARALLEL "internal parallel"#define DIO_ID_MISC2    0x09 /* 98287A keyboard */#define DIO_DESC_MISC2 "98287A keyboard"#define DIO_ID_MISC3    0x0a /* HP98635A FP accelerator */#define DIO_DESC_MISC3 "HP98635A FP accelerator"#define DIO_ID_MISC4    0x0b /* timer */#define DIO_DESC_MISC4 "timer"#define DIO_ID_MISC5    0x12 /* 98640A */#define DIO_DESC_MISC5 "98640A"#define DIO_ID_MISC6    0x16 /* 98659A */#define DIO_DESC_MISC6 "98659A"#define DIO_ID_MISC7    0x19 /* 237 display */#define DIO_DESC_MISC7 "237 display"#define DIO_ID_MISC8    0x1a /* quad-wide card */#define DIO_DESC_MISC8 "quad-wide card"#define DIO_ID_MISC9    0x1b /* 98253A */#define DIO_DESC_MISC9 "98253A"#define DIO_ID_MISC10   0x1c /* 98627A */#define DIO_DESC_MISC10 "98253A"#define DIO_ID_MISC11   0x1d /* 98633A */#define DIO_DESC_MISC11 "98633A"#define DIO_ID_MISC12   0x1e /* 98259A */#define DIO_DESC_MISC12 "98259A"#define DIO_ID_MISC13   0x1f /* 8741 */#define DIO_DESC_MISC13 "8741"#define DIO_ID_VME      0x31 /* 98577A VME adapter */#define DIO_DESC_VME "98577A VME adapter"#define DIO_ID_DCL      0x34 /* 98628A serial */#define DIO_DESC_DCL "98628A DCL serial"#define DIO_ID_DCLREM   0xb4 /* 98628A serial */#define DIO_DESC_DCLREM "98628A DCLREM serial"/* These are the secondary IDs for the framebuffers */#define DIO_ID2_GATORBOX    0x01 /* 98700/98710 "gatorbox" */#define DIO_DESC2_GATORBOX       "98700/98710 \"gatorbox\" display"#define DIO_ID2_TOPCAT      0x02 /* 98544/98545/98547 "topcat" */#define DIO_DESC2_TOPCAT         "98544/98545/98547 \"topcat\" display"#define DIO_ID2_RENAISSANCE 0x04 /* 98720/98721 "renaissance" */#define DIO_DESC2_RENAISSANCE    "98720/98721 \"renaissance\" display"#define DIO_ID2_LRCATSEYE   0x05 /* lowres "catseye" */#define DIO_DESC2_LRCATSEYE      "low-res catseye display"#define DIO_ID2_HRCCATSEYE  0x06 /* highres colour "catseye" */#define DIO_DESC2_HRCCATSEYE     "high-res color catseye display"#define DIO_ID2_HRMCATSEYE  0x07 /* highres mono "catseye" */#define DIO_DESC2_HRMCATSEYE     "high-res mono catseye display"#define DIO_ID2_DAVINCI     0x08 /* 98730/98731 "davinci" */#define DIO_DESC2_DAVINCI        "98730/98731 \"davinci\" display"#define DIO_ID2_XXXCATSEYE  0x09 /* "catseye" */#define DIO_DESC2_XXXCATSEYE     "catseye display"#define DIO_ID2_HYPERION    0x0e /* A1096A "hyperion" */#define DIO_DESC2_HYPERION       "A1096A \"hyperion\" display"#define DIO_ID2_XGENESIS    0x0b /* "x-genesis"; no NetBSD support */#define DIO_DESC2_XGENESIS       "\"x-genesis\" display"#define DIO_ID2_TIGER       0x0c /* "tiger"; no NetBSD support */#define DIO_DESC2_TIGER          "\"tiger\" display"#define DIO_ID2_YGENESIS    0x0d /* "y-genesis"; no NetBSD support */#define DIO_DESC2_YGENESIS       "\"y-genesis\" display"/* if you add new IDs then you should tell dio.c about them so it can * identify them... */extern void dio_init(void);extern int dio_find(int deviceid);extern void *dio_scodetoviraddr(int scode);extern int dio_scodetoipl(int scode);extern void dio_config_board(int scode);extern void dio_unconfig_board(int scode);#endif /* __KERNEL__ */#endif /* ndef _LINUX_DIO_H */