vidc20config.c revision 1.2.4.3
1 1.2.4.3 nathanw /* $NetBSD: vidc20config.c,v 1.2.4.3 2002/02/28 04:07:39 nathanw Exp $ */ 2 1.2.4.2 nathanw 3 1.2.4.2 nathanw /* 4 1.2.4.2 nathanw * Copyright (c) 2001 Reinoud Zandijk 5 1.2.4.2 nathanw * Copyright (c) 1996 Mark Brinicombe 6 1.2.4.2 nathanw * Copyright (c) 1996 Robert Black 7 1.2.4.2 nathanw * Copyright (c) 1994-1995 Melvyn Tang-Richardson 8 1.2.4.2 nathanw * Copyright (c) 1994-1995 RiscBSD kernel team 9 1.2.4.2 nathanw * All rights reserved. 10 1.2.4.2 nathanw * 11 1.2.4.2 nathanw * Redistribution and use in source and binary forms, with or without 12 1.2.4.2 nathanw * modification, are permitted provided that the following conditions 13 1.2.4.2 nathanw * are met: 14 1.2.4.2 nathanw * 1. Redistributions of source code must retain the above copyright 15 1.2.4.2 nathanw * notice, this list of conditions and the following disclaimer. 16 1.2.4.2 nathanw * 2. Redistributions in binary form must reproduce the above copyright 17 1.2.4.2 nathanw * notice, this list of conditions and the following disclaimer in the 18 1.2.4.2 nathanw * documentation and/or other materials provided with the distribution. 19 1.2.4.2 nathanw * 3. All advertising materials mentioning features or use of this software 20 1.2.4.2 nathanw * must display the following acknowledgement: 21 1.2.4.2 nathanw * This product includes software developed by the RiscBSD kernel team 22 1.2.4.2 nathanw * 4. The name of the company nor the name of the author may be used to 23 1.2.4.2 nathanw * endorse or promote products derived from this software without specific 24 1.2.4.2 nathanw * prior written permission. 25 1.2.4.2 nathanw * 26 1.2.4.2 nathanw * THIS SOFTWARE IS PROVIDED BY THE RISCBSD TEAM ``AS IS'' AND ANY EXPRESS 27 1.2.4.2 nathanw * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 28 1.2.4.2 nathanw * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 29 1.2.4.2 nathanw * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE 30 1.2.4.2 nathanw * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 31 1.2.4.2 nathanw * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 32 1.2.4.2 nathanw * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33 1.2.4.2 nathanw * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34 1.2.4.2 nathanw * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35 1.2.4.2 nathanw * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF 36 1.2.4.2 nathanw * THE POSSIBILITY OF SUCH DAMAGE. 37 1.2.4.2 nathanw * 38 1.2.4.2 nathanw * NetBSD kernel project 39 1.2.4.2 nathanw * 40 1.2.4.2 nathanw * vidcvideo.c 41 1.2.4.2 nathanw * 42 1.2.4.2 nathanw * This file is the lower basis of the wscons driver for VIDC based ARM machines. 43 1.2.4.2 nathanw * It features the initialisation and all VIDC writing and keeps in internal state 44 1.2.4.2 nathanw * copy. 45 1.2.4.2 nathanw * Its currenly set up as a library file and not as a device; it could be named 46 1.2.4.2 nathanw * vidcvideo0 eventually. 47 1.2.4.2 nathanw */ 48 1.2.4.2 nathanw 49 1.2.4.2 nathanw #include <sys/cdefs.h> 50 1.2.4.3 nathanw 51 1.2.4.3 nathanw __RCSID("$NetBSD: vidc20config.c,v 1.2.4.3 2002/02/28 04:07:39 nathanw Exp $"); 52 1.2.4.3 nathanw 53 1.2.4.2 nathanw #include <sys/types.h> 54 1.2.4.2 nathanw #include <sys/param.h> 55 1.2.4.2 nathanw #include <arm/iomd/vidc.h> 56 1.2.4.2 nathanw #include <arm/arm32/katelib.h> 57 1.2.4.2 nathanw #include <machine/bootconfig.h> 58 1.2.4.2 nathanw #include <machine/intr.h> 59 1.2.4.2 nathanw 60 1.2.4.2 nathanw #include <sys/systm.h> 61 1.2.4.2 nathanw #include <sys/device.h> 62 1.2.4.2 nathanw #include <uvm/uvm_extern.h> 63 1.2.4.2 nathanw 64 1.2.4.2 nathanw #include <arm/iomd/iomdreg.h> 65 1.2.4.2 nathanw #include <arm/iomd/iomdvar.h> 66 1.2.4.2 nathanw #include <arm/iomd/vidc20config.h> 67 1.2.4.2 nathanw 68 1.2.4.2 nathanw /* 69 1.2.4.2 nathanw * A structure containing ALL the information required to restore 70 1.2.4.2 nathanw * the VIDC20 to any given state. ALL vidc transactions should 71 1.2.4.2 nathanw * go through these procedures, which record the vidc's state. 72 1.2.4.2 nathanw * it may be an idea to set the permissions of the vidc base address 73 1.2.4.2 nathanw * so we get a fault, so the fault routine can record the state but 74 1.2.4.2 nathanw * I guess that's not really necessary for the time being, since we 75 1.2.4.2 nathanw * can make the kernel more secure later on. Also, it is possible 76 1.2.4.2 nathanw * to write a routine to allow 'reading' of the vidc registers. 77 1.2.4.2 nathanw */ 78 1.2.4.2 nathanw 79 1.2.4.2 nathanw static struct vidc_state vidc_lookup = { 80 1.2.4.2 nathanw { 0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0, 81 1.2.4.2 nathanw 0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0, 82 1.2.4.2 nathanw 0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0, 83 1.2.4.2 nathanw 0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0, 84 1.2.4.2 nathanw 0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0, 85 1.2.4.2 nathanw 0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0, 86 1.2.4.2 nathanw 0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0, 87 1.2.4.2 nathanw 0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0 88 1.2.4.2 nathanw }, 89 1.2.4.2 nathanw 90 1.2.4.2 nathanw VIDC_PALREG, 91 1.2.4.2 nathanw VIDC_BCOL, 92 1.2.4.2 nathanw VIDC_CP1 , 93 1.2.4.2 nathanw VIDC_CP2, 94 1.2.4.2 nathanw VIDC_CP3, 95 1.2.4.2 nathanw VIDC_HCR, 96 1.2.4.2 nathanw VIDC_HSWR, 97 1.2.4.2 nathanw VIDC_HBSR, 98 1.2.4.2 nathanw VIDC_HDSR, 99 1.2.4.2 nathanw VIDC_HDER, 100 1.2.4.2 nathanw VIDC_HBER, 101 1.2.4.2 nathanw VIDC_HCSR, 102 1.2.4.2 nathanw VIDC_HIR, 103 1.2.4.2 nathanw VIDC_VCR, 104 1.2.4.2 nathanw VIDC_VSWR, 105 1.2.4.2 nathanw VIDC_VBSR, 106 1.2.4.2 nathanw VIDC_VDSR, 107 1.2.4.2 nathanw VIDC_VDER, 108 1.2.4.2 nathanw VIDC_VBER, 109 1.2.4.2 nathanw VIDC_VCSR, 110 1.2.4.2 nathanw VIDC_VCER, 111 1.2.4.2 nathanw VIDC_EREG, 112 1.2.4.2 nathanw VIDC_FSYNREG, 113 1.2.4.2 nathanw VIDC_CONREG, 114 1.2.4.2 nathanw VIDC_DCTL 115 1.2.4.2 nathanw }; 116 1.2.4.2 nathanw 117 1.2.4.2 nathanw struct vidc_state vidc_current[1]; 118 1.2.4.2 nathanw 119 1.2.4.2 nathanw 120 1.2.4.2 nathanw /* 121 1.2.4.2 nathanw * XXX global display variables XXX ... should be a structure 122 1.2.4.2 nathanw */ 123 1.2.4.2 nathanw static int cold_init = 0; /* flags initialisation */ 124 1.2.4.2 nathanw extern videomemory_t videomemory; 125 1.2.4.2 nathanw 126 1.2.4.2 nathanw static struct vidc_mode vidc_initialmode; 127 1.2.4.2 nathanw static struct vidc_mode *vidc_currentmode; 128 1.2.4.2 nathanw 129 1.2.4.2 nathanw unsigned int dispstart; 130 1.2.4.2 nathanw unsigned int dispsize; 131 1.2.4.2 nathanw unsigned int dispbase; 132 1.2.4.2 nathanw unsigned int dispend; 133 1.2.4.2 nathanw unsigned int ptov; 134 1.2.4.2 nathanw unsigned int vmem_base; 135 1.2.4.2 nathanw unsigned int phys_base; 136 1.2.4.2 nathanw unsigned int transfersize; 137 1.2.4.2 nathanw 138 1.2.4.2 nathanw 139 1.2.4.2 nathanw /* cursor stuff */ 140 1.2.4.2 nathanw char *cursor_normal; 141 1.2.4.2 nathanw char *cursor_transparent; 142 1.2.4.2 nathanw int p_cursor_normal; 143 1.2.4.2 nathanw int p_cursor_transparent; 144 1.2.4.2 nathanw int cursor_width; 145 1.2.4.2 nathanw int cursor_height; 146 1.2.4.2 nathanw 147 1.2.4.2 nathanw 148 1.2.4.2 nathanw /* 149 1.2.4.2 nathanw * VIDC mode definitions 150 1.2.4.2 nathanw * generated from RISC OS mode definition file by an `awk' script 151 1.2.4.2 nathanw */ 152 1.2.4.2 nathanw extern struct vidc_mode vidcmodes[]; 153 1.2.4.2 nathanw 154 1.2.4.2 nathanw 155 1.2.4.2 nathanw /* 156 1.2.4.2 nathanw * configuration printing 157 1.2.4.2 nathanw * 158 1.2.4.2 nathanw */ 159 1.2.4.2 nathanw 160 1.2.4.2 nathanw void 161 1.2.4.2 nathanw vidcvideo_printdetails(void) 162 1.2.4.2 nathanw { 163 1.2.4.2 nathanw printf(": refclk=%dMHz %dKB %s ", (vidc_fref / 1000000), 164 1.2.4.2 nathanw videomemory.vidm_size / 1024, 165 1.2.4.2 nathanw (videomemory.vidm_type == VIDEOMEM_TYPE_VRAM) ? "VRAM" : "DRAM"); 166 1.2.4.2 nathanw } 167 1.2.4.2 nathanw 168 1.2.4.2 nathanw /* 169 1.2.4.2 nathanw * Common functions to directly access VIDC registers 170 1.2.4.2 nathanw */ 171 1.2.4.2 nathanw int 172 1.2.4.2 nathanw vidcvideo_write(reg, value) 173 1.2.4.2 nathanw u_int reg; 174 1.2.4.2 nathanw int value; 175 1.2.4.2 nathanw { 176 1.2.4.2 nathanw int counter; 177 1.2.4.2 nathanw 178 1.2.4.2 nathanw int *current; 179 1.2.4.2 nathanw int *tab; 180 1.2.4.2 nathanw 181 1.2.4.2 nathanw tab = (int *)&vidc_lookup; 182 1.2.4.2 nathanw current = (int *)vidc_current; 183 1.2.4.2 nathanw 184 1.2.4.2 nathanw 185 1.2.4.2 nathanw /* 186 1.2.4.2 nathanw * OK, the VIDC_PALETTE register is handled differently 187 1.2.4.2 nathanw * to the others on the VIDC, so take that into account here 188 1.2.4.2 nathanw */ 189 1.2.4.2 nathanw if (reg==VIDC_PALREG) { 190 1.2.4.2 nathanw vidc_current->palreg = 0; 191 1.2.4.2 nathanw WriteWord(vidc_base, reg | value); 192 1.2.4.2 nathanw return 0; 193 1.2.4.2 nathanw } 194 1.2.4.2 nathanw 195 1.2.4.2 nathanw if (reg==VIDC_PALETTE) { 196 1.2.4.2 nathanw WriteWord(vidc_base, reg | value); 197 1.2.4.2 nathanw vidc_current->palette[vidc_current->palreg] = value; 198 1.2.4.2 nathanw vidc_current->palreg++; 199 1.2.4.2 nathanw vidc_current->palreg = vidc_current->palreg & 0xff; 200 1.2.4.2 nathanw return 0; 201 1.2.4.2 nathanw } 202 1.2.4.2 nathanw 203 1.2.4.2 nathanw /* 204 1.2.4.2 nathanw * Undefine SAFER if you wish to speed things up (a little) 205 1.2.4.2 nathanw * although this means the function will assume things abou 206 1.2.4.2 nathanw * the structure of vidc_state. i.e. the first 256 words are 207 1.2.4.2 nathanw * the palette array 208 1.2.4.2 nathanw */ 209 1.2.4.2 nathanw 210 1.2.4.2 nathanw #define SAFER 211 1.2.4.2 nathanw 212 1.2.4.2 nathanw #ifdef SAFER 213 1.2.4.2 nathanw #define INITVALUE 0 214 1.2.4.2 nathanw #else 215 1.2.4.2 nathanw #define INITVALUE 256 216 1.2.4.2 nathanw #endif 217 1.2.4.2 nathanw 218 1.2.4.2 nathanw for ( counter=INITVALUE; counter<= sizeof(struct vidc_state); counter++ ) { 219 1.2.4.2 nathanw if ( reg==tab[counter] ) { 220 1.2.4.2 nathanw WriteWord ( vidc_base, reg | value ); 221 1.2.4.2 nathanw current[counter] = value; 222 1.2.4.2 nathanw return 0; 223 1.2.4.2 nathanw } 224 1.2.4.2 nathanw } 225 1.2.4.2 nathanw return -1; 226 1.2.4.2 nathanw } 227 1.2.4.2 nathanw 228 1.2.4.2 nathanw 229 1.2.4.2 nathanw void 230 1.2.4.2 nathanw vidcvideo_setpalette(vidc) 231 1.2.4.2 nathanw struct vidc_state *vidc; 232 1.2.4.2 nathanw { 233 1.2.4.2 nathanw int counter = 0; 234 1.2.4.2 nathanw 235 1.2.4.2 nathanw vidcvideo_write(VIDC_PALREG, 0x00000000); 236 1.2.4.2 nathanw for (counter = 0; counter < 255; counter++) 237 1.2.4.2 nathanw vidcvideo_write(VIDC_PALETTE, vidc->palette[counter]); 238 1.2.4.2 nathanw } 239 1.2.4.2 nathanw 240 1.2.4.2 nathanw 241 1.2.4.2 nathanw void 242 1.2.4.2 nathanw vidcvideo_setstate(vidc) 243 1.2.4.2 nathanw struct vidc_state *vidc; 244 1.2.4.2 nathanw { 245 1.2.4.2 nathanw vidcvideo_write ( VIDC_PALREG, vidc->palreg ); 246 1.2.4.2 nathanw vidcvideo_write ( VIDC_BCOL, vidc->bcol ); 247 1.2.4.2 nathanw vidcvideo_write ( VIDC_CP1, vidc->cp1 ); 248 1.2.4.2 nathanw vidcvideo_write ( VIDC_CP2, vidc->cp2 ); 249 1.2.4.2 nathanw vidcvideo_write ( VIDC_CP3, vidc->cp3 ); 250 1.2.4.2 nathanw vidcvideo_write ( VIDC_HCR, vidc->hcr ); 251 1.2.4.2 nathanw vidcvideo_write ( VIDC_HSWR, vidc->hswr ); 252 1.2.4.2 nathanw vidcvideo_write ( VIDC_HBSR, vidc->hbsr ); 253 1.2.4.2 nathanw vidcvideo_write ( VIDC_HDSR, vidc->hdsr ); 254 1.2.4.2 nathanw vidcvideo_write ( VIDC_HDER, vidc->hder ); 255 1.2.4.2 nathanw vidcvideo_write ( VIDC_HBER, vidc->hber ); 256 1.2.4.2 nathanw vidcvideo_write ( VIDC_HCSR, vidc->hcsr ); 257 1.2.4.2 nathanw vidcvideo_write ( VIDC_HIR, vidc->hir ); 258 1.2.4.2 nathanw vidcvideo_write ( VIDC_VCR, vidc->vcr ); 259 1.2.4.2 nathanw vidcvideo_write ( VIDC_VSWR, vidc->vswr ); 260 1.2.4.2 nathanw vidcvideo_write ( VIDC_VBSR, vidc->vbsr ); 261 1.2.4.2 nathanw vidcvideo_write ( VIDC_VDSR, vidc->vdsr ); 262 1.2.4.2 nathanw vidcvideo_write ( VIDC_VDER, vidc->vder ); 263 1.2.4.2 nathanw vidcvideo_write ( VIDC_VBER, vidc->vber ); 264 1.2.4.2 nathanw vidcvideo_write ( VIDC_VCSR, vidc->vcsr ); 265 1.2.4.2 nathanw vidcvideo_write ( VIDC_VCER, vidc->vcer ); 266 1.2.4.2 nathanw /* 267 1.2.4.2 nathanw * Right, dunno what to set these to yet, but let's keep RiscOS's 268 1.2.4.2 nathanw * ones for now, until the time is right to finish this code 269 1.2.4.2 nathanw */ 270 1.2.4.2 nathanw 271 1.2.4.2 nathanw /* vidcvideo_write ( VIDC_EREG, vidc->ereg ); */ 272 1.2.4.2 nathanw /* vidcvideo_write ( VIDC_FSYNREG, vidc->fsynreg ); */ 273 1.2.4.2 nathanw /* vidcvideo_write ( VIDC_CONREG, vidc->conreg ); */ 274 1.2.4.2 nathanw /* vidcvideo_write ( VIDC_DCTL, vidc->dctl ); */ 275 1.2.4.2 nathanw 276 1.2.4.2 nathanw } 277 1.2.4.2 nathanw 278 1.2.4.2 nathanw 279 1.2.4.2 nathanw void 280 1.2.4.2 nathanw vidcvideo_getstate(vidc) 281 1.2.4.2 nathanw struct vidc_state *vidc; 282 1.2.4.2 nathanw { 283 1.2.4.2 nathanw *vidc = *vidc_current; 284 1.2.4.2 nathanw } 285 1.2.4.2 nathanw 286 1.2.4.2 nathanw 287 1.2.4.2 nathanw void 288 1.2.4.2 nathanw vidcvideo_getmode(mode) 289 1.2.4.2 nathanw struct vidc_mode *mode; 290 1.2.4.2 nathanw { 291 1.2.4.2 nathanw *mode = *vidc_currentmode; 292 1.2.4.2 nathanw } 293 1.2.4.2 nathanw 294 1.2.4.2 nathanw 295 1.2.4.2 nathanw void 296 1.2.4.2 nathanw vidcvideo_stdpalette() 297 1.2.4.2 nathanw { 298 1.2.4.2 nathanw WriteWord(vidc_base, VIDC_PALREG | 0x00000000); 299 1.2.4.2 nathanw WriteWord(vidc_base, VIDC_PALETTE | VIDC_COL( 0, 0, 0)); 300 1.2.4.2 nathanw WriteWord(vidc_base, VIDC_PALETTE | VIDC_COL(255, 0, 0)); 301 1.2.4.2 nathanw WriteWord(vidc_base, VIDC_PALETTE | VIDC_COL( 0, 255, 0)); 302 1.2.4.2 nathanw WriteWord(vidc_base, VIDC_PALETTE | VIDC_COL(255, 255, 0)); 303 1.2.4.2 nathanw WriteWord(vidc_base, VIDC_PALETTE | VIDC_COL( 0, 0, 255)); 304 1.2.4.2 nathanw WriteWord(vidc_base, VIDC_PALETTE | VIDC_COL(255, 0, 255)); 305 1.2.4.2 nathanw WriteWord(vidc_base, VIDC_PALETTE | VIDC_COL( 0, 255, 255)); 306 1.2.4.2 nathanw WriteWord(vidc_base, VIDC_PALETTE | VIDC_COL(255, 255, 255)); 307 1.2.4.2 nathanw WriteWord(vidc_base, VIDC_PALETTE | VIDC_COL(128, 128, 128)); 308 1.2.4.2 nathanw WriteWord(vidc_base, VIDC_PALETTE | VIDC_COL(255, 128, 128)); 309 1.2.4.2 nathanw WriteWord(vidc_base, VIDC_PALETTE | VIDC_COL(128, 255, 128)); 310 1.2.4.2 nathanw WriteWord(vidc_base, VIDC_PALETTE | VIDC_COL(255, 255, 128)); 311 1.2.4.2 nathanw WriteWord(vidc_base, VIDC_PALETTE | VIDC_COL(128, 128, 255)); 312 1.2.4.2 nathanw WriteWord(vidc_base, VIDC_PALETTE | VIDC_COL(255, 128, 255)); 313 1.2.4.2 nathanw WriteWord(vidc_base, VIDC_PALETTE | VIDC_COL(128, 255, 255)); 314 1.2.4.2 nathanw WriteWord(vidc_base, VIDC_PALETTE | VIDC_COL(255, 255, 255)); 315 1.2.4.2 nathanw } 316 1.2.4.2 nathanw 317 1.2.4.2 nathanw 318 1.2.4.2 nathanw static int 319 1.2.4.2 nathanw vidcvideo_coldinit(void) 320 1.2.4.2 nathanw { 321 1.2.4.2 nathanw int found; 322 1.2.4.2 nathanw int loop; 323 1.2.4.2 nathanw 324 1.2.4.2 nathanw /* Blank out the cursor */ 325 1.2.4.2 nathanw 326 1.2.4.2 nathanw vidcvideo_write(VIDC_CP1, 0x0); 327 1.2.4.2 nathanw vidcvideo_write(VIDC_CP2, 0x0); 328 1.2.4.2 nathanw vidcvideo_write(VIDC_CP3, 0x0); 329 1.2.4.2 nathanw 330 1.2.4.2 nathanw /* Try to determine the current mode */ 331 1.2.4.2 nathanw vidc_initialmode.hder = bootconfig.width+1; 332 1.2.4.2 nathanw vidc_initialmode.vder = bootconfig.height+1; 333 1.2.4.2 nathanw vidc_initialmode.log2_bpp = bootconfig.log2_bpp; 334 1.2.4.2 nathanw 335 1.2.4.2 nathanw dispbase = vmem_base = dispstart = videomemory.vidm_vbase; 336 1.2.4.2 nathanw phys_base = videomemory.vidm_pbase; 337 1.2.4.2 nathanw 338 1.2.4.2 nathanw /* Nut - should be using videomemory.vidm_size - mark */ 339 1.2.4.2 nathanw if (videomemory.vidm_type == VIDEOMEM_TYPE_DRAM) { 340 1.2.4.2 nathanw dispsize = videomemory.vidm_size; 341 1.2.4.2 nathanw transfersize = 16; 342 1.2.4.2 nathanw } else { 343 1.2.4.2 nathanw dispsize = bootconfig.vram[0].pages * NBPG; 344 1.2.4.2 nathanw transfersize = dispsize >> 10; 345 1.2.4.2 nathanw }; 346 1.2.4.2 nathanw 347 1.2.4.2 nathanw ptov = dispbase - phys_base; 348 1.2.4.2 nathanw 349 1.2.4.2 nathanw dispend = dispstart+dispsize; 350 1.2.4.2 nathanw 351 1.2.4.2 nathanw /* try to find the current mode from the bootloader in my table */ 352 1.2.4.2 nathanw vidc_currentmode = &vidcmodes[0]; 353 1.2.4.2 nathanw loop = 0; 354 1.2.4.2 nathanw found = 0; 355 1.2.4.2 nathanw while (vidcmodes[loop].pixel_rate != 0) { 356 1.2.4.2 nathanw if (vidcmodes[loop].hder == (bootconfig.width + 1) 357 1.2.4.2 nathanw && vidcmodes[loop].vder == (bootconfig.height + 1) 358 1.2.4.2 nathanw && vidcmodes[loop].frame_rate == bootconfig.framerate) { 359 1.2.4.2 nathanw vidc_currentmode = &vidcmodes[loop]; 360 1.2.4.2 nathanw found = 1; 361 1.2.4.2 nathanw } 362 1.2.4.2 nathanw ++loop; 363 1.2.4.2 nathanw } 364 1.2.4.2 nathanw 365 1.2.4.2 nathanw /* if not found choose first mode but dont be picky on the framerate */ 366 1.2.4.2 nathanw if (!found) { 367 1.2.4.2 nathanw vidc_currentmode = &vidcmodes[0]; 368 1.2.4.2 nathanw loop = 0; 369 1.2.4.2 nathanw found = 0; 370 1.2.4.2 nathanw 371 1.2.4.2 nathanw while (vidcmodes[loop].pixel_rate != 0) { 372 1.2.4.2 nathanw if (vidcmodes[loop].hder == (bootconfig.width + 1) 373 1.2.4.2 nathanw && vidcmodes[loop].vder == (bootconfig.height + 1)) { 374 1.2.4.2 nathanw vidc_currentmode = &vidcmodes[loop]; 375 1.2.4.2 nathanw found = 1; 376 1.2.4.2 nathanw } 377 1.2.4.2 nathanw ++loop; 378 1.2.4.2 nathanw } 379 1.2.4.2 nathanw } 380 1.2.4.2 nathanw 381 1.2.4.2 nathanw vidc_currentmode->log2_bpp = bootconfig.log2_bpp; 382 1.2.4.2 nathanw 383 1.2.4.2 nathanw dispstart = dispbase; 384 1.2.4.2 nathanw dispend = dispstart+dispsize; 385 1.2.4.2 nathanw 386 1.2.4.2 nathanw IOMD_WRITE_WORD(IOMD_VIDINIT, dispstart-ptov); 387 1.2.4.2 nathanw IOMD_WRITE_WORD(IOMD_VIDSTART, dispstart-ptov); 388 1.2.4.2 nathanw IOMD_WRITE_WORD(IOMD_VIDEND, (dispend-transfersize)-ptov); 389 1.2.4.2 nathanw return 0; 390 1.2.4.2 nathanw } 391 1.2.4.2 nathanw 392 1.2.4.2 nathanw 393 1.2.4.2 nathanw /* simple function to abstract vidc variables ; returns virt start address of screen */ 394 1.2.4.2 nathanw /* XXX asumption that video memory is mapped in twice */ 395 1.2.4.2 nathanw void *vidcvideo_hwscroll(int bytes) { 396 1.2.4.2 nathanw dispstart += bytes; 397 1.2.4.2 nathanw if (dispstart >= dispbase + dispsize) dispstart -= dispsize; 398 1.2.4.2 nathanw if (dispstart < dispbase) dispstart += dispsize; 399 1.2.4.2 nathanw dispend = dispstart+dispsize; 400 1.2.4.2 nathanw 401 1.2.4.2 nathanw /* return the start of the bit map of the screen (left top) */ 402 1.2.4.2 nathanw return (void *) dispstart; 403 1.2.4.2 nathanw } 404 1.2.4.2 nathanw 405 1.2.4.2 nathanw 406 1.2.4.2 nathanw /* reset the HW scroll to be at the start for the benefit of f.e. X */ 407 1.2.4.2 nathanw void *vidcvideo_hwscroll_reset(void) { 408 1.2.4.2 nathanw void *cookie = (void *) dispstart; 409 1.2.4.2 nathanw 410 1.2.4.2 nathanw dispstart = dispbase; 411 1.2.4.2 nathanw dispend = dispstart + dispsize; 412 1.2.4.2 nathanw return cookie; 413 1.2.4.2 nathanw } 414 1.2.4.2 nathanw 415 1.2.4.2 nathanw 416 1.2.4.2 nathanw /* put HW scroll back to where it was */ 417 1.2.4.2 nathanw void *vidcvideo_hwscroll_back(void *cookie) { 418 1.2.4.2 nathanw dispstart = (int) cookie; 419 1.2.4.2 nathanw dispend = dispstart + dispsize; 420 1.2.4.2 nathanw return cookie; 421 1.2.4.2 nathanw } 422 1.2.4.2 nathanw 423 1.2.4.2 nathanw 424 1.2.4.2 nathanw /* this function is to be called at vsync */ 425 1.2.4.2 nathanw void vidcvideo_progr_scroll(void) { 426 1.2.4.2 nathanw IOMD_WRITE_WORD(IOMD_VIDINIT, dispstart-ptov); 427 1.2.4.2 nathanw IOMD_WRITE_WORD(IOMD_VIDSTART, dispstart-ptov); 428 1.2.4.2 nathanw IOMD_WRITE_WORD(IOMD_VIDEND, (dispend-transfersize)-ptov); 429 1.2.4.2 nathanw } 430 1.2.4.2 nathanw 431 1.2.4.2 nathanw 432 1.2.4.2 nathanw /* 433 1.2.4.2 nathanw * Select a new mode by reprogramming the VIDC chip 434 1.2.4.2 nathanw * XXX this part is known not to work for 32bpp 435 1.2.4.2 nathanw */ 436 1.2.4.2 nathanw 437 1.2.4.2 nathanw struct vidc_mode newmode; 438 1.2.4.2 nathanw 439 1.2.4.2 nathanw static const int bpp_mask_table[] = { 440 1.2.4.2 nathanw 0, /* 1bpp */ 441 1.2.4.2 nathanw 1, /* 2bpp */ 442 1.2.4.2 nathanw 2, /* 4bpp */ 443 1.2.4.2 nathanw 3, /* 8bpp */ 444 1.2.4.2 nathanw 4, /* 16bpp */ 445 1.2.4.2 nathanw 6 /* 32bpp */ 446 1.2.4.2 nathanw }; 447 1.2.4.2 nathanw 448 1.2.4.2 nathanw 449 1.2.4.2 nathanw void 450 1.2.4.2 nathanw vidcvideo_setmode(struct vidc_mode *mode) 451 1.2.4.2 nathanw { 452 1.2.4.2 nathanw register int acc; 453 1.2.4.2 nathanw int bpp_mask; 454 1.2.4.2 nathanw int ereg; 455 1.2.4.2 nathanw int best_r, best_v; 456 1.2.4.2 nathanw int least_error; 457 1.2.4.2 nathanw int r, v, f; 458 1.2.4.2 nathanw 459 1.2.4.2 nathanw /* 460 1.2.4.2 nathanw * Find out what bit mask we need to or with the vidc20 control register 461 1.2.4.2 nathanw * in order to generate the desired number of bits per pixel. 462 1.2.4.2 nathanw * log_bpp is log base 2 of the number of bits per pixel. 463 1.2.4.2 nathanw */ 464 1.2.4.2 nathanw 465 1.2.4.2 nathanw bpp_mask = bpp_mask_table[mode->log2_bpp]; 466 1.2.4.2 nathanw 467 1.2.4.2 nathanw newmode = *mode; 468 1.2.4.2 nathanw vidc_currentmode = &newmode; 469 1.2.4.2 nathanw 470 1.2.4.2 nathanw least_error = INT_MAX; 471 1.2.4.2 nathanw best_r = 0; best_v = 0; 472 1.2.4.2 nathanw 473 1.2.4.2 nathanw for (v = 63; v > 0; v--) { 474 1.2.4.2 nathanw for (r = 63; r > 0; r--) { 475 1.2.4.2 nathanw f = ((v * vidc_fref) /1000) / r; 476 1.2.4.2 nathanw if (least_error >= 477 1.2.4.2 nathanw abs(f - vidc_currentmode->pixel_rate)) { 478 1.2.4.2 nathanw least_error = 479 1.2.4.2 nathanw abs(f - vidc_currentmode->pixel_rate); 480 1.2.4.2 nathanw best_r = r; 481 1.2.4.2 nathanw best_v = v; 482 1.2.4.2 nathanw } 483 1.2.4.2 nathanw } 484 1.2.4.2 nathanw } 485 1.2.4.2 nathanw 486 1.2.4.2 nathanw if (best_r > 63) best_r=63; 487 1.2.4.2 nathanw if (best_v > 63) best_v=63; 488 1.2.4.2 nathanw if (best_r < 1) best_r= 1; 489 1.2.4.2 nathanw if (best_v < 1) best_v= 1; 490 1.2.4.2 nathanw 491 1.2.4.2 nathanw vidcvideo_write(VIDC_FSYNREG, (best_v-1)<<8 | (best_r-1)<<0); 492 1.2.4.2 nathanw 493 1.2.4.2 nathanw acc=0; 494 1.2.4.2 nathanw acc+=vidc_currentmode->hswr; vidcvideo_write(VIDC_HSWR, (acc - 8 ) & (~1)); 495 1.2.4.2 nathanw acc+=vidc_currentmode->hbsr; vidcvideo_write(VIDC_HBSR, (acc - 12) & (~1)); 496 1.2.4.2 nathanw acc+=vidc_currentmode->hdsr; vidcvideo_write(VIDC_HDSR, (acc - 18) & (~1)); 497 1.2.4.2 nathanw acc+=vidc_currentmode->hder; vidcvideo_write(VIDC_HDER, (acc - 18) & (~1)); 498 1.2.4.2 nathanw acc+=vidc_currentmode->hber; vidcvideo_write(VIDC_HBER, (acc - 12) & (~1)); 499 1.2.4.2 nathanw acc+=vidc_currentmode->hcr; vidcvideo_write(VIDC_HCR, (acc - 8 ) & (~3)); 500 1.2.4.2 nathanw 501 1.2.4.2 nathanw acc=0; 502 1.2.4.2 nathanw acc+=vidc_currentmode->vswr; vidcvideo_write(VIDC_VSWR, (acc - 1)); 503 1.2.4.2 nathanw acc+=vidc_currentmode->vbsr; vidcvideo_write(VIDC_VBSR, (acc - 1)); 504 1.2.4.2 nathanw acc+=vidc_currentmode->vdsr; vidcvideo_write(VIDC_VDSR, (acc - 1)); 505 1.2.4.2 nathanw acc+=vidc_currentmode->vder; vidcvideo_write(VIDC_VDER, (acc - 1)); 506 1.2.4.2 nathanw acc+=vidc_currentmode->vber; vidcvideo_write(VIDC_VBER, (acc - 1)); 507 1.2.4.2 nathanw acc+=vidc_currentmode->vcr; vidcvideo_write(VIDC_VCR, (acc - 1)); 508 1.2.4.2 nathanw 509 1.2.4.2 nathanw IOMD_WRITE_WORD(IOMD_FSIZE, vidc_currentmode->vcr 510 1.2.4.2 nathanw + vidc_currentmode->vswr 511 1.2.4.2 nathanw + vidc_currentmode->vber 512 1.2.4.2 nathanw + vidc_currentmode->vbsr - 1); 513 1.2.4.2 nathanw 514 1.2.4.2 nathanw if (dispsize <= 1024*1024) 515 1.2.4.2 nathanw vidcvideo_write(VIDC_DCTL, vidc_currentmode->hder>>2 | 1<<16 | 1<<12); 516 1.2.4.2 nathanw else 517 1.2.4.2 nathanw vidcvideo_write(VIDC_DCTL, vidc_currentmode->hder>>2 | 3<<16 | 1<<12); 518 1.2.4.2 nathanw 519 1.2.4.2 nathanw ereg = 1<<12; 520 1.2.4.2 nathanw if (vidc_currentmode->sync_pol & 0x01) 521 1.2.4.2 nathanw ereg |= 1<<16; 522 1.2.4.2 nathanw if (vidc_currentmode->sync_pol & 0x02) 523 1.2.4.2 nathanw ereg |= 1<<18; 524 1.2.4.2 nathanw vidcvideo_write(VIDC_EREG, ereg); 525 1.2.4.2 nathanw if (dispsize > 1024*1024) { 526 1.2.4.2 nathanw if (vidc_currentmode->hder >= 800) 527 1.2.4.2 nathanw vidcvideo_write(VIDC_CONREG, 7<<8 | bpp_mask<<5); 528 1.2.4.2 nathanw else 529 1.2.4.2 nathanw vidcvideo_write(VIDC_CONREG, 6<<8 | bpp_mask<<5); 530 1.2.4.2 nathanw } else { 531 1.2.4.2 nathanw vidcvideo_write(VIDC_CONREG, 7<<8 | bpp_mask<<5); 532 1.2.4.2 nathanw } 533 1.2.4.2 nathanw } 534 1.2.4.2 nathanw 535 1.2.4.2 nathanw 536 1.2.4.3 nathanw #if 0 537 1.2.4.2 nathanw /* not used for now */ 538 1.2.4.2 nathanw void 539 1.2.4.2 nathanw vidcvideo_set_display_base(base) 540 1.2.4.2 nathanw u_int base; 541 1.2.4.2 nathanw { 542 1.2.4.2 nathanw dispstart = dispstart-dispbase + base; 543 1.2.4.2 nathanw dispbase = vmem_base = base; 544 1.2.4.2 nathanw dispend = base + dispsize; 545 1.2.4.2 nathanw ptov = dispbase - phys_base; 546 1.2.4.2 nathanw } 547 1.2.4.3 nathanw #endif 548 1.2.4.2 nathanw 549 1.2.4.2 nathanw 550 1.2.4.2 nathanw /* 551 1.2.4.2 nathanw * Main initialisation routine for now 552 1.2.4.2 nathanw */ 553 1.2.4.2 nathanw 554 1.2.4.2 nathanw static int cursor_init = 0; 555 1.2.4.2 nathanw 556 1.2.4.2 nathanw int 557 1.2.4.2 nathanw vidcvideo_init(void) 558 1.2.4.2 nathanw { 559 1.2.4.2 nathanw vidcvideo_coldinit(); 560 1.2.4.2 nathanw if (cold_init && (cursor_init == 0)) 561 1.2.4.2 nathanw /* vidcvideo_flash_go() */; 562 1.2.4.2 nathanw 563 1.2.4.2 nathanw /* setting a mode goes wrong in 32 bpp ... 8 and 16 seem OK */ 564 1.2.4.2 nathanw vidcvideo_setmode(vidc_currentmode); 565 1.2.4.2 nathanw vidcvideo_blank(0); /* display on */ 566 1.2.4.2 nathanw 567 1.2.4.2 nathanw vidcvideo_textpalette(); 568 1.2.4.2 nathanw 569 1.2.4.2 nathanw if (cold_init == 0) { 570 1.2.4.2 nathanw vidcvideo_write(VIDC_CP1, 0x0); 571 1.2.4.2 nathanw vidcvideo_write(VIDC_CP2, 0x0); 572 1.2.4.2 nathanw vidcvideo_write(VIDC_CP3, 0x0); 573 1.2.4.2 nathanw } else { 574 1.2.4.2 nathanw vidcvideo_cursor_init(CURSOR_MAX_WIDTH, CURSOR_MAX_HEIGHT); 575 1.2.4.2 nathanw }; 576 1.2.4.2 nathanw 577 1.2.4.2 nathanw cold_init=1; 578 1.2.4.2 nathanw return 0; 579 1.2.4.2 nathanw } 580 1.2.4.2 nathanw 581 1.2.4.2 nathanw 582 1.2.4.2 nathanw /* reinitialise the vidcvideo */ 583 1.2.4.2 nathanw void 584 1.2.4.2 nathanw vidcvideo_reinit() 585 1.2.4.2 nathanw { 586 1.2.4.2 nathanw vidcvideo_coldinit(); 587 1.2.4.2 nathanw vidcvideo_setmode(vidc_currentmode); 588 1.2.4.2 nathanw } 589 1.2.4.2 nathanw 590 1.2.4.2 nathanw 591 1.2.4.2 nathanw int 592 1.2.4.2 nathanw vidcvideo_cursor_init(int width, int height) 593 1.2.4.2 nathanw { 594 1.2.4.2 nathanw static char *cursor_data = NULL; 595 1.2.4.2 nathanw int counter; 596 1.2.4.2 nathanw int line; 597 1.2.4.2 nathanw paddr_t pa; 598 1.2.4.2 nathanw 599 1.2.4.2 nathanw cursor_width = width; 600 1.2.4.2 nathanw cursor_height = height; 601 1.2.4.2 nathanw 602 1.2.4.2 nathanw if (!cursor_data) { 603 1.2.4.2 nathanw /* Allocate cursor memory first time round */ 604 1.2.4.2 nathanw cursor_data = (char *)uvm_km_zalloc(kernel_map, NBPG); 605 1.2.4.2 nathanw if (!cursor_data) 606 1.2.4.2 nathanw panic("Cannot allocate memory for hardware cursor\n"); 607 1.2.4.2 nathanw (void) pmap_extract(pmap_kernel(), (vaddr_t)cursor_data, &pa); 608 1.2.4.2 nathanw IOMD_WRITE_WORD(IOMD_CURSINIT, pa); 609 1.2.4.2 nathanw } 610 1.2.4.2 nathanw 611 1.2.4.2 nathanw /* Blank the cursor while initialising it's sprite */ 612 1.2.4.2 nathanw 613 1.2.4.2 nathanw vidcvideo_write ( VIDC_CP1, 0x0 ); 614 1.2.4.2 nathanw vidcvideo_write ( VIDC_CP2, 0x0 ); 615 1.2.4.2 nathanw vidcvideo_write ( VIDC_CP3, 0x0 ); 616 1.2.4.2 nathanw 617 1.2.4.2 nathanw cursor_normal = cursor_data; 618 1.2.4.2 nathanw cursor_transparent = cursor_data + (height * width); 619 1.2.4.2 nathanw 620 1.2.4.2 nathanw cursor_transparent += 32; /* ALIGN */ 621 1.2.4.2 nathanw cursor_transparent = (char *)((int)cursor_transparent & (~31) ); 622 1.2.4.2 nathanw 623 1.2.4.2 nathanw for ( line = 0; line<height; ++ line ) 624 1.2.4.2 nathanw { 625 1.2.4.2 nathanw for ( counter=0; counter<width/4;counter++ ) 626 1.2.4.2 nathanw cursor_normal[line * width + counter]=0x55; /* why 0x55 ? */ 627 1.2.4.2 nathanw for ( ; counter<8; counter++ ) 628 1.2.4.2 nathanw cursor_normal[line * width + counter]=0; 629 1.2.4.2 nathanw } 630 1.2.4.2 nathanw 631 1.2.4.2 nathanw for ( line = 0; line<height; ++ line ) 632 1.2.4.2 nathanw { 633 1.2.4.2 nathanw for ( counter=0; counter<width/4;counter++ ) 634 1.2.4.2 nathanw cursor_transparent[line * width + counter]=0x00; 635 1.2.4.2 nathanw for ( ; counter<8; counter++ ) 636 1.2.4.2 nathanw cursor_transparent[line * width + counter]=0; 637 1.2.4.2 nathanw } 638 1.2.4.2 nathanw 639 1.2.4.2 nathanw 640 1.2.4.2 nathanw (void) pmap_extract(pmap_kernel(), (vaddr_t)cursor_normal, 641 1.2.4.2 nathanw (paddr_t *)&p_cursor_normal); 642 1.2.4.2 nathanw (void) pmap_extract(pmap_kernel(), (vaddr_t)cursor_transparent, 643 1.2.4.2 nathanw (paddr_t *)&p_cursor_transparent); 644 1.2.4.2 nathanw 645 1.2.4.2 nathanw memset ( cursor_normal, 0x55, width*height ); /* white? */ 646 1.2.4.2 nathanw memset ( cursor_transparent, 0x00, width*height ); /* to see the diffence */ 647 1.2.4.2 nathanw 648 1.2.4.2 nathanw /* Ok, now program the cursor; should be blank */ 649 1.2.4.2 nathanw vidcvideo_enablecursor(0); 650 1.2.4.2 nathanw 651 1.2.4.2 nathanw return 0; 652 1.2.4.2 nathanw } 653 1.2.4.2 nathanw 654 1.2.4.2 nathanw 655 1.2.4.2 nathanw void 656 1.2.4.2 nathanw vidcvideo_updatecursor(xcur, ycur) 657 1.2.4.2 nathanw int xcur, ycur; 658 1.2.4.2 nathanw { 659 1.2.4.2 nathanw int frontporch = vidc_currentmode->hswr + vidc_currentmode->hbsr + vidc_currentmode->hdsr; 660 1.2.4.2 nathanw int topporch = vidc_currentmode->vswr + vidc_currentmode->vbsr + vidc_currentmode->vdsr; 661 1.2.4.2 nathanw 662 1.2.4.2 nathanw vidcvideo_write(VIDC_HCSR, frontporch -17 + xcur); 663 1.2.4.2 nathanw vidcvideo_write(VIDC_VCSR, topporch -2 + (ycur+1)-2 + 3 - cursor_height); 664 1.2.4.2 nathanw vidcvideo_write(VIDC_VCER, topporch -2 + (ycur+3)+2 + 3 ); 665 1.2.4.2 nathanw return; 666 1.2.4.2 nathanw } 667 1.2.4.2 nathanw 668 1.2.4.2 nathanw 669 1.2.4.2 nathanw void 670 1.2.4.2 nathanw vidcvideo_enablecursor(on) 671 1.2.4.2 nathanw int on; 672 1.2.4.2 nathanw { 673 1.2.4.2 nathanw if (on) { 674 1.2.4.2 nathanw IOMD_WRITE_WORD(IOMD_CURSINIT,p_cursor_normal); 675 1.2.4.2 nathanw } else { 676 1.2.4.2 nathanw IOMD_WRITE_WORD(IOMD_CURSINIT,p_cursor_transparent); 677 1.2.4.2 nathanw }; 678 1.2.4.2 nathanw vidcvideo_write ( VIDC_CP1, 0xffffff ); /* enable */ 679 1.2.4.2 nathanw 680 1.2.4.2 nathanw return; 681 1.2.4.2 nathanw } 682 1.2.4.2 nathanw 683 1.2.4.2 nathanw 684 1.2.4.2 nathanw int 685 1.2.4.2 nathanw vidcvideo_textpalette() 686 1.2.4.2 nathanw { 687 1.2.4.2 nathanw vidcvideo_write(VIDC_PALREG, 0x00000000); 688 1.2.4.2 nathanw vidcvideo_write(VIDC_PALETTE, VIDC_COL( 0, 0, 0)); 689 1.2.4.2 nathanw vidcvideo_write(VIDC_PALETTE, VIDC_COL(255, 0, 0)); 690 1.2.4.2 nathanw vidcvideo_write(VIDC_PALETTE, VIDC_COL( 0, 255, 0)); 691 1.2.4.2 nathanw vidcvideo_write(VIDC_PALETTE, VIDC_COL(255, 255, 0)); 692 1.2.4.2 nathanw vidcvideo_write(VIDC_PALETTE, VIDC_COL( 0, 0, 255)); 693 1.2.4.2 nathanw vidcvideo_write(VIDC_PALETTE, VIDC_COL(255, 0, 255)); 694 1.2.4.2 nathanw vidcvideo_write(VIDC_PALETTE, VIDC_COL( 0, 255, 255)); 695 1.2.4.2 nathanw vidcvideo_write(VIDC_PALETTE, VIDC_COL(255, 255, 255)); 696 1.2.4.2 nathanw vidcvideo_write(VIDC_PALETTE, VIDC_COL(128, 128, 128)); 697 1.2.4.2 nathanw vidcvideo_write(VIDC_PALETTE, VIDC_COL(255, 128, 128)); 698 1.2.4.2 nathanw vidcvideo_write(VIDC_PALETTE, VIDC_COL(128, 255, 128)); 699 1.2.4.2 nathanw vidcvideo_write(VIDC_PALETTE, VIDC_COL(255, 255, 128)); 700 1.2.4.2 nathanw vidcvideo_write(VIDC_PALETTE, VIDC_COL(128, 128, 255)); 701 1.2.4.2 nathanw vidcvideo_write(VIDC_PALETTE, VIDC_COL(255, 128, 255)); 702 1.2.4.2 nathanw vidcvideo_write(VIDC_PALETTE, VIDC_COL(255, 255, 255)); 703 1.2.4.2 nathanw 704 1.2.4.2 nathanw return 0; 705 1.2.4.2 nathanw } 706 1.2.4.2 nathanw 707 1.2.4.2 nathanw int 708 1.2.4.2 nathanw vidcvideo_blank(video_off) 709 1.2.4.2 nathanw int video_off; 710 1.2.4.2 nathanw { 711 1.2.4.2 nathanw int ereg; 712 1.2.4.2 nathanw 713 1.2.4.2 nathanw ereg = 1<<12; 714 1.2.4.2 nathanw if (vidc_currentmode->sync_pol & 0x01) 715 1.2.4.2 nathanw ereg |= 1<<16; 716 1.2.4.2 nathanw if (vidc_currentmode->sync_pol & 0x02) 717 1.2.4.2 nathanw ereg |= 1<<18; 718 1.2.4.2 nathanw 719 1.2.4.2 nathanw if (!video_off) { 720 1.2.4.2 nathanw vidcvideo_write(VIDC_EREG, ereg); 721 1.2.4.2 nathanw } else { 722 1.2.4.2 nathanw vidcvideo_write(VIDC_EREG, 0); 723 1.2.4.2 nathanw }; 724 1.2.4.2 nathanw return 0; 725 1.2.4.2 nathanw } 726 1.2.4.2 nathanw 727 1.2.4.2 nathanw /* end of vidc20config.c */ 728
Indexes created Mon Oct 27 08:10:08 GMT 2025