1 /* $NetBSD: grf_cc.c,v 1.39 2010/12/20 00:25:25 matt 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 1.39 2010/12/20 00:25:25 matt 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 "view.h" 63 64 int grfccmatch(struct device *, struct cfdata *, void *); 65 int grfccprint(void *, const char *); 66 void grfccattach(struct device *, struct device *, void *); 67 void grf_cc_on(struct grf_softc *); 68 69 CFATTACH_DECL(grfcc, sizeof(struct grf_softc), 70 grfccmatch, grfccattach, NULL, NULL); 71 72 /* 73 * only used in console init 74 */ 75 static struct cfdata *cfdata; 76 77 /* 78 * we make sure to only init things once. this is somewhat 79 * tricky regarding the console. 80 */ 81 int 82 grfccmatch(struct device *pdp, struct cfdata *cfp, void *auxp) 83 { 84 static int ccconunit = -1; 85 char *mainbus_name = auxp; 86 extern const struct cdevsw view_cdevsw; 87 88 /* 89 * allow only one cc console 90 */ 91 if (amiga_realconfig == 0 && ccconunit != -1) 92 return(0); 93 if (matchname("grfcc", mainbus_name) == 0) 94 return(0); 95 if (amiga_realconfig == 0 || ccconunit != cfp->cf_unit) { 96 if (grfcc_probe() == 0) 97 return(0); 98 viewprobe(); 99 /* 100 * XXX nasty hack. opens view[0] and never closes. 101 */ 102 if ((*view_cdevsw.d_open)(0, 0, 0, NULL)) 103 return(0); 104 if (amiga_realconfig == 0) { 105 ccconunit = cfp->cf_unit; 106 cfdata = cfp; 107 } 108 } 109 return(1); 110 } 111 112 /* 113 * attach to the grfbus (mainbus) 114 */ 115 void 116 grfccattach(struct device *pdp, struct device *dp, void *auxp) 117 { 118 static struct grf_softc congrf; 119 struct grf_softc *gp; 120 121 if (dp == NULL) 122 gp = &congrf; 123 else 124 gp = (struct grf_softc *)dp; 125 126 if (dp != NULL && congrf.g_regkva != 0) { 127 /* 128 * we inited earlier just copy the info 129 * take care not to copy the device struct though. 130 */ 131 memcpy(&gp->g_display, &congrf.g_display, 132 (char *)&gp[1] - (char *)&gp->g_display); 133 } else { 134 gp->g_unit = GRF_CC_UNIT; 135 gp->g_flags = GF_ALIVE; 136 gp->g_mode = cc_mode; 137 gp->g_conpri = grfcc_cnprobe(); 138 grfcc_iteinit(gp); 139 grf_cc_on(gp); 140 } 141 if (dp != NULL) 142 printf("\n"); 143 /* 144 * attach grf 145 */ 146 amiga_config_found(cfdata, &gp->g_device, gp, grfccprint); 147 } 148 149 int 150 grfccprint(void *auxp, const char *pnp) 151 { 152 if (pnp) 153 aprint_normal("grf%d at %s", ((struct grf_softc *)auxp)->g_unit, 154 pnp); 155 return(UNCONF); 156 } 157 158 /* 159 * Change the mode of the display. 160 * Right now all we can do is grfon/grfoff. 161 * Return a UNIX error number or 0 for success. 162 */ 163 /*ARGSUSED*/ 164 int 165 cc_mode(struct grf_softc *gp, u_long cmd, void *arg, u_long a2, int a3) 166 { 167 extern const struct cdevsw view_cdevsw; 168 169 switch (cmd) { 170 case GM_GRFON: 171 grf_cc_on(gp); 172 return(0); 173 case GM_GRFOFF: 174 (*view_cdevsw.d_ioctl)(0, VIOCREMOVE, NULL, -1, NULL); 175 return(0); 176 case GM_GRFCONFIG: 177 default: 178 break; 179 } 180 return(EPASSTHROUGH); 181 } 182 183 void 184 grf_cc_on(struct grf_softc *gp) 185 { 186 struct view_size vs; 187 bmap_t bm; 188 struct grfinfo *gi; 189 extern const struct cdevsw view_cdevsw; 190 191 gi = &gp->g_display; 192 193 /* XXX type of bm ? */ 194 (*view_cdevsw.d_ioctl)(0, VIOCGBMAP, (void *)&bm, -1, NULL); 195 196 gp->g_data = (void *) 0xDeadBeaf; /* not particularly clean.. */ 197 198 gi->gd_regaddr = (void *) 0xdff000; /* depricated */ 199 gi->gd_regsize = round_page(sizeof (custom)); 200 gi->gd_fbaddr = bm.hardware_address; 201 gi->gd_fbsize = bm.depth*bm.bytes_per_row*bm.rows; 202 203 if ((*view_cdevsw.d_ioctl)(0, VIOCGSIZE, (void *)&vs, -1, NULL)) { 204 /* XXX type of vs ? */ 205 /* fill in some default values... XXX */ 206 vs.width = 640; 207 vs.height = 400; 208 vs.depth = 2; 209 } 210 gi->gd_colors = 1 << vs.depth; 211 gi->gd_planes = vs.depth; 212 213 gi->gd_fbwidth = vs.width; 214 gi->gd_fbheight = vs.height; 215 gi->gd_fbx = 0; 216 gi->gd_fby = 0; 217 gi->gd_dwidth = vs.width; 218 gi->gd_dheight = vs.height; 219 gi->gd_dx = 0; 220 gi->gd_dy = 0; 221 222 gp->g_regkva = (void *)0xDeadBeaf; /* builtin */ 223 gp->g_fbkva = NULL; /* not needed, view internal */ 224 225 (*view_cdevsw.d_ioctl)(0, VIOCDISPLAY, NULL, -1, NULL); 226 } 227 #endif 228 229