sys/arch/amiga/dev/grf_cc.c

   1 /*      $NetBSD: grf_cc.c,v 1.37 2009/03/18 17:06:42 cegger Exp $ */
   2
   3 /*
   4  * Copyright (c) 1994 Christian E. Hopps
   5  * All rights reserved.
   6  *
   7  * Redistribution and use in source and binary forms, with or without
   8  * modification, are permitted provided that the following conditions
   9  * are met:
  10  * 1. Redistributions of source code must retain the above copyright
  11  *    notice, this list of conditions and the following disclaimer.
  12  * 2. Redistributions in binary form must reproduce the above copyright
  13  *    notice, this list of conditions and the following disclaimer in the
  14  *    documentation and/or other materials provided with the distribution.
  15  * 3. All advertising materials mentioning features or use of this software
  16  *    must display the following acknowledgement:
  17  *      This product includes software developed by Christian E. Hopps.
  18  * 4. The name of the author may not be used to endorse or promote products
  19  *    derived from this software without specific prior written permission
  20  *
  21  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  22  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  23  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  24  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  25  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  26  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  27  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  28  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  29  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  30  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  31  */
  32
  33 #include <sys/cdefs.h>
  34 __KERNEL_RCSID(0, "$NetBSD: grf_cc.c,v 1.37 2009/03/18 17:06:42 cegger Exp $");
  35
  36 #include "grfcc.h"
  37 #if NGRFCC > 0
  38 /*
  39  * currently this is a backward compat hack that interface to
  40  * view.c
  41  */
  42
  43 #include <sys/param.h>
  44 #include <sys/proc.h>
  45 #include <sys/errno.h>
  46 #include <sys/ioctl.h>
  47 #include <sys/queue.h>
  48 #include <sys/device.h>
  49 #include <sys/systm.h>
  50 #include <sys/conf.h>
  51 #include <machine/cpu.h>
  52 #include <amiga/amiga/color.h>  /* DEBUG */
  53 #include <amiga/amiga/device.h>
  54 #include <amiga/amiga/custom.h>
  55 #include <amiga/amiga/cia.h>
  56 #include <amiga/dev/grfioctl.h>
  57 #include <amiga/dev/grfvar.h>
  58 #include <amiga/dev/grf_ccreg.h>
  59 #include <amiga/dev/grfabs_reg.h>
  60 #include <amiga/dev/viewioctl.h>
  61
  62 #include <uvm/uvm_extern.h>
  63
  64 #include "view.h"
  65
  66 int grfccmatch(struct device *, struct cfdata *, void *);
  67 int grfccprint(void *, const char *);
  68 void grfccattach(struct device *, struct device *, void *);
  69 void grf_cc_on(struct grf_softc *);
  70
  71 CFATTACH_DECL(grfcc, sizeof(struct grf_softc),
  72     grfccmatch, grfccattach, NULL, NULL);
  73
  74 /*
  75  * only used in console init
  76  */
  77 static struct cfdata *cfdata;
  78
  79 /*
  80  * we make sure to only init things once.  this is somewhat
  81  * tricky regarding the console.
  82  */
  83 int
  84 grfccmatch(struct device *pdp, struct cfdata *cfp, void *auxp)
  85 {
  86         static int ccconunit = -1;
  87         char *mainbus_name = auxp;
  88         extern const struct cdevsw view_cdevsw;
  89
  90         /*
  91          * allow only one cc console
  92          */
  93         if (amiga_realconfig == 0 && ccconunit != -1)
  94                 return(0);
  95         if (matchname("grfcc", mainbus_name) == 0)
  96                 return(0);
  97         if (amiga_realconfig == 0 || ccconunit != cfp->cf_unit) {
  98                 if (grfcc_probe() == 0)
  99                         return(0);
 100                 viewprobe();
 101                 /*
 102                  * XXX nasty hack. opens view[0] and never closes.
 103                  */
 104                 if ((*view_cdevsw.d_open)(0, 0, 0, NULL))
 105                         return(0);
 106                 if (amiga_realconfig == 0) {
 107                         ccconunit = cfp->cf_unit;
 108                         cfdata = cfp;
 109                 }
 110         }
 111         return(1);
 112 }
 113
 114 /*
 115  * attach to the grfbus (mainbus)
 116  */
 117 void
 118 grfccattach(struct device *pdp, struct device *dp, void *auxp)
 119 {
 120         static struct grf_softc congrf;
 121         struct grf_softc *gp;
 122
 123         if (dp == NULL)
 124                 gp = &congrf;
 125         else
 126                 gp = (struct grf_softc *)dp;
 127
 128         if (dp != NULL && congrf.g_regkva != 0) {
 129                 /*
 130                  * we inited earlier just copy the info
 131                  * take care not to copy the device struct though.
 132                  */
 133                 memcpy(&gp->g_display, &congrf.g_display,
 134                     (char *)&gp[1] - (char *)&gp->g_display);
 135         } else {
 136                 gp->g_unit = GRF_CC_UNIT;
 137                 gp->g_flags = GF_ALIVE;
 138                 gp->g_mode = cc_mode;
 139                 gp->g_conpri = grfcc_cnprobe();
 140                 grfcc_iteinit(gp);
 141                 grf_cc_on(gp);
 142         }
 143         if (dp != NULL)
 144                 printf("\n");
 145         /*
 146          * attach grf
 147          */
 148         amiga_config_found(cfdata, &gp->g_device, gp, grfccprint);
 149 }
 150
 151 int
 152 grfccprint(void *auxp, const char *pnp)
 153 {
 154         if (pnp)
 155                 aprint_normal("grf%d at %s", ((struct grf_softc *)auxp)->g_unit,
 156                         pnp);
 157         return(UNCONF);
 158 }
 159
 160 /*
 161  * Change the mode of the display.
 162  * Right now all we can do is grfon/grfoff.
 163  * Return a UNIX error number or 0 for success.
 164  */
 165 /*ARGSUSED*/
 166 int
 167 cc_mode(struct grf_softc *gp, u_long cmd, void *arg, u_long a2, int a3)
 168 {
 169         extern const struct cdevsw view_cdevsw;
 170
 171         switch (cmd) {
 172         case GM_GRFON:
 173                 grf_cc_on(gp);
 174                 return(0);
 175         case GM_GRFOFF:
 176                 (*view_cdevsw.d_ioctl)(0, VIOCREMOVE, NULL, -1, NULL);
 177                 return(0);
 178         case GM_GRFCONFIG:
 179         default:
 180                 break;
 181         }
 182         return(EPASSTHROUGH);
 183 }
 184
 185 void
 186 grf_cc_on(struct grf_softc *gp)
 187 {
 188         struct view_size vs;
 189         bmap_t bm;
 190         struct grfinfo *gi;
 191         extern const struct cdevsw view_cdevsw;
 192
 193         gi = &gp->g_display;
 194
 195         /* XXX type of bm ? */
 196         (*view_cdevsw.d_ioctl)(0, VIOCGBMAP, (void *)&bm, -1, NULL);
 197
 198         gp->g_data = (void *) 0xDeadBeaf; /* not particularly clean.. */
 199
 200         gi->gd_regaddr = (void *) 0xdff000;     /* depricated */
 201         gi->gd_regsize = round_page(sizeof (custom));
 202         gi->gd_fbaddr  = bm.hardware_address;
 203         gi->gd_fbsize  = bm.depth*bm.bytes_per_row*bm.rows;
 204
 205         if ((*view_cdevsw.d_ioctl)(0, VIOCGSIZE, (void *)&vs, -1, NULL)) {
 206                 /* XXX type of vs ? */
 207                 /* fill in some default values... XXX */
 208                 vs.width = 640;
 209                 vs.height = 400;
 210                 vs.depth = 2;
 211         }
 212         gi->gd_colors = 1 << vs.depth;
 213         gi->gd_planes = vs.depth;
 214
 215         gi->gd_fbwidth = vs.width;
 216         gi->gd_fbheight = vs.height;
 217         gi->gd_fbx = 0;
 218         gi->gd_fby = 0;
 219         gi->gd_dwidth = vs.width;
 220         gi->gd_dheight = vs.height;
 221         gi->gd_dx = 0;
 222         gi->gd_dy = 0;
 223
 224         gp->g_regkva = (void *)0xDeadBeaf;      /* builtin */
 225         gp->g_fbkva = NULL;             /* not needed, view internal */
 226
 227         (*view_cdevsw.d_ioctl)(0, VIOCDISPLAY, NULL, -1, NULL);
 228 }
 229 #endif
 230