Home | History | Annotate | Line # | Download | only in dev
grf_cc.c revision 1.6 
      1  1.1  mw #include "grf.h"
      2  1.1  mw #if NGRF > 0
      3  1.1  mw 
      4  1.1  mw /* Graphics routines for the AMIGA native custom chip set. */
      5  1.1  mw 
      6  1.6  mw /* NOTE: this is now only a more or less rough interface to Chris Hopps'
      7  1.6  mw          view driver. Due to some design problems with RTG view can't
      8  1.6  mw 	 currently replace grf, but that's an option for the future. */
      9  1.6  mw 
     10  1.6  mw #include "param.h"
     11  1.6  mw #include "vm/vm_param.h"
     12  1.1  mw #include "sys/errno.h"
     13  1.6  mw #include "ioctl.h"
     14  1.1  mw #include "grfioctl.h"
     15  1.1  mw #include "grfvar.h"
     16  1.1  mw #include "grf_ccreg.h"
     17  1.1  mw #include "../include/cpu.h"
     18  1.1  mw #include "../amiga/custom.h"
     19  1.3  mw #include "../amiga/cia.h"
     20  1.6  mw #include "../amiga/cc_types.h"
     21  1.6  mw #include "grf/grf_types.h"
     22  1.6  mw #include "grf/grf_bitmap.h"
     23  1.6  mw #include "viewioctl.h"
     24  1.4  mw 
     25  1.3  mw /* Initialize hardware.
     26  1.1  mw  * Must point g_display at a grfinfo structure describing the hardware.
     27  1.1  mw  * Returns 0 if hardware not present, non-zero ow.
     28  1.1  mw  */
     29  1.1  mw cc_init(gp, ad)
     30  1.1  mw 	struct grf_softc *gp;
     31  1.1  mw 	struct amiga_device *ad;
     32  1.1  mw {
     33  1.6  mw   bmap_t bm;
     34  1.1  mw   struct grfinfo *gi = &gp->g_display;
     35  1.6  mw   int rc;
     36  1.6  mw   long start, off;
     37  1.6  mw   struct view_size vs;
     38  1.6  mw 
     39  1.6  mw   /* already initialized fail */
     40  1.6  mw   if (gp->g_data == 12345678)
     41  1.6  mw     return 0;
     42  1.6  mw 
     43  1.6  mw   rc = grfcc_probe ();
     44  1.6  mw   if (! rc)
     45  1.1  mw     return 0;
     46  1.1  mw 
     47  1.6  mw   viewprobe ();
     48  1.6  mw 
     49  1.6  mw   /* now it gets REALLY nasty.. view[0] stays open for all time
     50  1.6  mw      now.. */
     51  1.6  mw   if (viewopen (0, 0))
     52  1.6  mw     return 0;
     53  1.6  mw 
     54  1.6  mw   /* XXX 0 may need to change when virtual added */
     55  1.6  mw   XXX_grf_cc_on (0);
     56  1.1  mw 
     57  1.1  mw   return(1);
     58  1.1  mw }
     59  1.1  mw 
     60  1.1  mw cc_config(gp, di)
     61  1.1  mw 	register struct grf_softc *gp;
     62  1.1  mw 	struct grfdyninfo *di;
     63  1.1  mw {
     64  1.1  mw   struct grfinfo *gi = &gp->g_display;
     65  1.1  mw 
     66  1.1  mw   /* bottom missing... */
     67  1.1  mw 
     68  1.1  mw }
     69  1.1  mw 
     70  1.6  mw extern struct grf_softc grf_softc[];
     71  1.6  mw #define GPUNIT(ip) (((u_long)ip-(u_long)grf_softc)/sizeof(struct grf_softc))
     72  1.6  mw 
     73  1.1  mw /*
     74  1.1  mw  * Change the mode of the display.
     75  1.1  mw  * Right now all we can do is grfon/grfoff.
     76  1.1  mw  * Return a UNIX error number or 0 for success.
     77  1.1  mw  */
     78  1.1  mw cc_mode(gp, cmd, arg)
     79  1.1  mw 	register struct grf_softc *gp;
     80  1.1  mw 	int cmd;
     81  1.1  mw 	void *arg;
     82  1.1  mw {
     83  1.1  mw   switch (cmd)
     84  1.1  mw     {
     85  1.1  mw     case GM_GRFON:
     86  1.6  mw       XXX_grf_cc_on (GPUNIT (gp));
     87  1.1  mw       return 0;
     88  1.1  mw 
     89  1.1  mw     case GM_GRFOFF:
     90  1.6  mw       XXX_grf_cc_off (GPUNIT (gp));
     91  1.1  mw       return 0;
     92  1.1  mw 
     93  1.1  mw     case GM_GRFCONFIG:
     94  1.1  mw       return cc_config (gp, (struct grfdyninfo *) arg);
     95  1.1  mw 
     96  1.1  mw     default:
     97  1.1  mw       break;
     98  1.1  mw     }
     99  1.1  mw 
    100  1.1  mw   return EINVAL;
    101  1.1  mw }
    102  1.6  mw 
    103  1.6  mw 
    104  1.6  mw /* nasty nasty hack. right now grf's unit == ite's unit == view's unit. */
    105  1.6  mw /* to make X work (I guess) we need to update the grf structure's HW */
    106  1.6  mw /* address to the current view (as this may change without grf knowing.) */
    107  1.6  mw /* Thanks to M Hitch. for finding this one. */
    108  1.6  mw XXX_grf_cc_on (unit)
    109  1.6  mw     int unit;
    110  1.6  mw {
    111  1.6  mw   struct grf_softc *gp = &grf_softc[unit];
    112  1.6  mw   struct grfinfo *gi = &gp->g_display;
    113  1.6  mw   bmap_t bm;
    114  1.6  mw   struct view_size vs;
    115  1.6  mw 
    116  1.6  mw   viewioctl (unit, VIEW_GETBITMAP, &bm, 0, -1);
    117  1.6  mw 
    118  1.6  mw   gp->g_data = 12345678;		/* not particularly clean.. */
    119  1.6  mw 
    120  1.6  mw   gi->gd_regaddr = 0xdff000;		/* no need to look at regs */
    121  1.6  mw   gi->gd_regsize = round_page(sizeof (custom));	/* I mean it X people, for CC */
    122  1.6  mw 					/* use the view device. That way */
    123  1.6  mw 					/* we can have both X and a console. */
    124  1.6  mw 					/* and flip between them.  People */
    125  1.6  mw 					/* will be unhappy if this feature */
    126  1.6  mw 					/* is so easy and yet not availble. */
    127  1.6  mw 					/* (if you wern't using them then */
    128  1.6  mw 					/* thanks.) */
    129  1.6  mw 					/**** I will remove these soon.****/
    130  1.6  mw   gi->gd_fbaddr  = bm.hardware_address;
    131  1.6  mw   gi->gd_fbsize  = bm.depth*bm.bytes_per_row*bm.rows;
    132  1.6  mw 
    133  1.6  mw   if (viewioctl (unit, VIEW_GETSIZE, &vs, 0, -1))
    134  1.6  mw     {
    135  1.6  mw       /* fill in some default values... XXX */
    136  1.6  mw       vs.width = 640; vs.height = 400; vs.depth = 2;
    137  1.6  mw     }
    138  1.6  mw 
    139  1.6  mw   gi->gd_colors = 1 << vs.depth;
    140  1.6  mw   gi->gd_planes = vs.depth;
    141  1.6  mw 
    142  1.6  mw   gi->gd_fbwidth  = vs.width;
    143  1.6  mw   gi->gd_fbheight = vs.height;
    144  1.6  mw   gi->gd_fbx	  = 0;
    145  1.6  mw   gi->gd_fby	  = 0;
    146  1.6  mw   gi->gd_dwidth   = vs.width;
    147  1.6  mw   gi->gd_dheight  = vs.height;
    148  1.6  mw   gi->gd_dx	  = 0;
    149  1.6  mw   gi->gd_dy	  = 0;
    150  1.6  mw 
    151  1.6  mw   gp->g_regkva = 0;	/* builtin */
    152  1.6  mw   gp->g_fbkva  = 0;	/* not needed, view internal */
    153  1.6  mw 
    154  1.6  mw   viewioctl (unit, VIEW_DISPLAY, NULL, 0, -1);
    155  1.6  mw 
    156  1.6  mw }
    157  1.6  mw 
    158  1.6  mw XXX_grf_cc_off (unit)
    159  1.6  mw     int unit;
    160  1.6  mw {
    161  1.6  mw     viewioctl (unit, VIEW_REMOVE, NULL, 0, -1);
    162  1.6  mw }
    163  1.6  mw 
    164  1.1  mw 
    165  1.1  mw #endif
    166  1.4  mw 
    167