include/asm-sparc/sun4prom.h

   1 /*
   2  * sun4prom.h -- interface to sun4 PROM monitor.  We don't use most of this,
   3  *               so most of these are just placeholders.
   4  */
   5
   6 #ifndef _SUN4PROM_H_
   7 #define _SUN4PROM_H_
   8
   9 /*
  10  * Although this looks similar to an romvec for a OpenProm machine, it is
  11  * actually closer to what was used in the Sun2 and Sun3.
  12  *
  13  * V2 entries exist only in version 2 PROMs and later, V3 in version 3 and later.
  14  *
  15  * Many of the function prototypes are guesses.  Some are certainly wrong.
  16  * Use with care.
  17  */
  18
  19 typedef struct {
  20         char            *initSP;                /* Initial system stack ptr */
  21         void            (*startmon)(void);      /* Initial PC for hardware */
  22         int             *diagberr;              /* Bus err handler for diags */
  23         struct linux_arguments_v0 **bootParam; /* Info for bootstrapped pgm */
  24         unsigned int    *memorysize;            /* Usable memory in bytes */
  25         unsigned char   (*getchar)(void);       /* Get char from input device */
  26         void            (*putchar)(char);       /* Put char to output device */
  27         int             (*mayget)(void);        /* Maybe get char, or -1 */
  28         int             (*mayput)(int);         /* Maybe put char, or -1 */
  29         unsigned char   *echo;                  /* Should getchar echo? */
  30         unsigned char   *insource;              /* Input source selector */
  31         unsigned char   *outsink;               /* Output sink selector */
  32         int             (*getkey)(void);        /* Get next key if one exists */
  33         void            (*initgetkey)(void);    /* Initialize get key */
  34         unsigned int    *translation;           /* Kbd translation selector */
  35         unsigned char   *keybid;                /* Keyboard ID byte */
  36         int             *screen_x;              /* V2: Screen x pos (r/o) */
  37         int             *screen_y;              /* V2: Screen y pos (r/o) */
  38         struct keybuf   *keybuf;                /* Up/down keycode buffer */
  39         char            *monid;                 /* Monitor version ID */
  40         void            (*fbwritechar)(char);   /* Write a character to FB */
  41         int             *fbAddr;                /* Address of frame buffer */
  42         char            **font;                 /* Font table for FB */
  43         void            (*fbwritestr)(char *);  /* Write string to FB */
  44         void            (*reboot)(char *);      /* e.g. reboot("sd()vmlinux") */
  45         unsigned char   *linebuf;               /* The line input buffer */
  46         unsigned char   **lineptr;              /* Cur pointer into linebuf */
  47         int             *linesize;              /* length of line in linebuf */
  48         void            (*getline)(char *);     /* Get line from user */
  49         unsigned char   (*getnextchar)(void);   /* Get next char from linebuf */
  50         unsigned char   (*peeknextchar)(void);  /* Peek at next char */
  51         int             *fbthere;               /* =1 if frame buffer there */
  52         int             (*getnum)(void);        /* Grab hex num from line */
  53         int             (*printf)(char *, ...); /* See prom_printf() instead */
  54         void            (*printhex)(int);       /* Format N digits in hex */
  55         unsigned char   *leds;                  /* RAM copy of LED register */
  56         void            (*setLEDs)(unsigned char *);    /* Sets LED's and RAM copy */
  57         void            (*NMIaddr)(void *);     /* Addr for level 7 vector */
  58         void            (*abortentry)(void);    /* Entry for keyboard abort */
  59         int             *nmiclock;              /* Counts up in msec */
  60         int             *FBtype;                /* Frame buffer type */
  61         unsigned int    romvecversion;          /* Version number for this romvec */
  62         struct globram  *globram;               /* monitor global variables ??? */
  63         void *          kbdaddr;                /* Addr of keyboard in use */
  64         int             *keyrinit;              /* ms before kbd repeat */
  65         unsigned char   *keyrtick;              /* ms between repetitions */
  66         unsigned int    *memoryavail;           /* V1: Main mem usable size */
  67         long            *resetaddr;             /* where to jump on a reset */
  68         long            *resetmap;              /* pgmap entry for resetaddr */
  69         void            (*exittomon)(void);     /* Exit from user program */
  70         unsigned char   **memorybitmap;         /* V1: &{0 or &bits} */
  71         void            (*setcxsegmap)(int ctxt, char *va, int pmeg);   /* Set seg in any context */
  72         void            (**vector_cmd)(void *); /* V2: Handler for 'v' cmd */
  73         unsigned long   *expectedtrapsig;       /* V3: Location of the expected trap signal */
  74         unsigned long   *trapvectorbasetable;   /* V3: Address of the trap vector table */
  75         int             unused1;
  76         int             unused2;
  77         int             unused3;
  78         int             unused4;
  79 } linux_sun4_romvec;
  80
  81 extern linux_sun4_romvec *sun4_romvec;
  82
  83 #endif /* _SUN4PROM_H_ */