Blame |
Last modification |
View Log
| RSS feed
/* 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) in_8((baseaddr) + DIO_IDOFF)
#define DIO_SECID(baseaddr) in_8((baseaddr) + DIO_SECIDOFF)
/* extract the interrupt level */
#define DIO_IPL(baseaddr) (((in_8((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) ((in_8((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 LANCE ethernet"
#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 int dio_find(int deviceid);
extern void *dio_scodetoviraddr(int scode);
extern int dio_scodetoipl(int scode);
extern const char *dio_scodetoname(int scode);
extern void dio_config_board(int scode);
extern void dio_unconfig_board(int scode);
#endif /* __KERNEL__ */
#endif /* ndef _LINUX_DIO_H */