1 /* 2 Copyright 1999, Be Incorporated. All Rights Reserved. 3 This file may be used under the terms of the Be Sample Code License. 4 5 Other authors for MGA driver: 6 Mark Watson, 7 Rudolf Cornelissen 9/2002-11/2004 8 */ 9 10 #define MODULE_BIT 0x00400000 11 12 #include "acc_std.h" 13 14 #define T_POSITIVE_SYNC (B_POSITIVE_HSYNC | B_POSITIVE_VSYNC) 15 /* mode flags will be setup as status info by PROPOSEMODE! */ 16 #define MODE_FLAGS 0 17 #define MODE_COUNT (sizeof (mode_list) / sizeof (display_mode)) 18 19 /*some monitors only handle a fixed set of modes*/ 20 #include "valid_mode_list" 21 22 /*Standard VESA modes*/ 23 static const display_mode mode_list[] = { 24 { { 25175, 640, 656, 752, 800, 480, 490, 492, 525, 0}, B_CMAP8, 640, 480, 0, 0, MODE_FLAGS}, /* Vesa_Monitor_@60Hz_(640X480X8.Z1) */ 25 { { 27500, 640, 672, 768, 864, 480, 488, 494, 530, 0}, B_CMAP8, 640, 480, 0, 0, MODE_FLAGS}, /* 640X480X60Hz */ 26 { { 30500, 640, 672, 768, 864, 480, 517, 523, 588, 0}, B_CMAP8, 640, 480, 0, 0, MODE_FLAGS}, /* SVGA_640X480X60HzNI */ 27 { { 31500, 640, 664, 704, 832, 480, 489, 492, 520, 0}, B_CMAP8, 640, 480, 0, 0, MODE_FLAGS}, /* Vesa_Monitor_@70-72Hz_(640X480X8.Z1) */ 28 { { 31500, 640, 656, 720, 840, 480, 481, 484, 500, 0}, B_CMAP8, 640, 480, 0, 0, MODE_FLAGS}, /* Vesa_Monitor_@75Hz_(640X480X8.Z1) */ 29 { { 36000, 640, 696, 752, 832, 480, 481, 484, 509, 0}, B_CMAP8, 640, 480, 0, 0, MODE_FLAGS}, /* Vesa_Monitor_@85Hz_(640X480X8.Z1) */ 30 { { 36000, 800, 824, 896, 1024, 600, 601, 603, 625, 0}, B_CMAP8, 800, 600, 0, 0, MODE_FLAGS}, /* Vesa_Monitor_@56Hz_(800X600) from Be, Inc. driver + XFree86 */ 31 { { 38100, 800, 832, 960, 1088, 600, 602, 606, 620, 0}, B_CMAP8, 800, 600, 0, 0, MODE_FLAGS}, /* SVGA_800X600X56HzNI */ 32 { { 40000, 800, 840, 968, 1056, 600, 601, 605, 628, T_POSITIVE_SYNC}, B_CMAP8, 800, 600, 0, 0, MODE_FLAGS}, /* Vesa_Monitor_@60Hz_(800X600X8.Z1) + XFree86 */ 33 { { 49500, 800, 816, 896, 1056, 600, 601, 604, 625, T_POSITIVE_SYNC}, B_CMAP8, 800, 600, 0, 0, MODE_FLAGS}, /* Vesa_Monitor_@75Hz_(800X600X8.Z1) + XFree86 */ 34 { { 50000, 800, 856, 976, 1040, 600, 637, 643, 666, T_POSITIVE_SYNC}, B_CMAP8, 800, 600, 0, 0, MODE_FLAGS}, /* Vesa_Monitor_@70-72Hz_(800X600X8.Z1) + XFree86 */ 35 { { 56250, 800, 832, 896, 1048, 600, 601, 604, 631, T_POSITIVE_SYNC}, B_CMAP8, 800, 600, 0, 0, MODE_FLAGS}, /* Vesa_Monitor_@85Hz_(800X600X8.Z1) + XFree86 */ 36 { { 65000, 1024, 1048, 1184, 1344, 768, 771, 777, 806, 0}, B_CMAP8, 1024, 768, 0, 0, MODE_FLAGS}, /* Vesa_Monitor_@60Hz_(1024X768X8.Z1) + XFree86 */ 37 { { 75000, 1024, 1048, 1184, 1328, 768, 771, 777, 806, 0}, B_CMAP8, 1024, 768, 0, 0, MODE_FLAGS}, /* Vesa_Monitor_@70-72Hz_(1024X768X8.Z1) + XFree86 */ 38 { { 78750, 1024, 1040, 1136, 1312, 768, 769, 772, 800, T_POSITIVE_SYNC}, B_CMAP8, 1024, 768, 0, 0, MODE_FLAGS}, /* Vesa_Monitor_@75Hz_(1024X768X8.Z1) + XFree86 */ 39 { { 94500, 1024, 1072, 1168, 1376, 768, 769, 772, 808, T_POSITIVE_SYNC}, B_CMAP8, 1024, 768, 0, 0, MODE_FLAGS}, /* Vesa_Monitor_@85Hz_(1024X768X8.Z1) + XFree86 */ 40 { { 94200, 1152, 1184, 1280, 1472, 864, 865, 868, 914, T_POSITIVE_SYNC}, B_CMAP8, 1152, 864, 0, 0, MODE_FLAGS}, /* Vesa_Monitor_@70Hz_(1152X864X8.Z1) */ 41 { { 97800, 1152, 1216, 1344, 1552, 864, 865, 868, 900, T_POSITIVE_SYNC}, B_CMAP8, 1152, 864, 0, 0, MODE_FLAGS}, /* Vesa_Monitor_@70Hz_(1152X864X8.Z1) */ 42 { { 108000, 1152, 1216, 1344, 1600, 864, 865, 868, 900, T_POSITIVE_SYNC}, B_CMAP8, 1152, 864, 0, 0, MODE_FLAGS}, /* Vesa_Monitor_@75Hz_(1152X864X8.Z1) + XFree86 */ 43 { { 121500, 1152, 1216, 1344, 1568, 864, 865, 868, 911, T_POSITIVE_SYNC}, B_CMAP8, 1152, 864, 0, 0, MODE_FLAGS}, /* Vesa_Monitor_@85Hz_(1152X864X8.Z1) */ 44 { { 108000, 1280, 1328, 1440, 1688, 1024, 1025, 1028, 1066, T_POSITIVE_SYNC}, B_CMAP8, 1280, 1024, 0, 0, MODE_FLAGS}, /* Vesa_Monitor_@60Hz_(1280X1024) from Be, Inc. driver + XFree86 */ 45 { { 135000, 1280, 1296, 1440, 1688, 1024, 1025, 1028, 1066, T_POSITIVE_SYNC}, B_CMAP8, 1280, 1024, 0, 0, MODE_FLAGS}, /* Vesa_Monitor_@75Hz_(1280X1024X8.Z1) + XFree86 */ 46 { { 157500, 1280, 1344, 1504, 1728, 1024, 1025, 1028, 1072, T_POSITIVE_SYNC}, B_CMAP8, 1280, 1024, 0, 0, MODE_FLAGS}, /* Vesa_Monitor_@85Hz_(1280X1024X8.Z1) + XFree86 */ 47 { { 122600, 1400, 1488, 1640, 1880, 1050, 1051, 1054, 1087, T_POSITIVE_SYNC}, B_CMAP8, 1400, 1050, 0, 0, MODE_FLAGS}, /* Vesa_Monitor_@60Hz_(1400X1050) */ 48 { { 162000, 1600, 1664, 1856, 2160, 1200, 1201, 1204, 1250, T_POSITIVE_SYNC}, B_CMAP8, 1600, 1200, 0, 0, MODE_FLAGS}, /* Vesa_Monitor_@60Hz_(1600X1200X8.Z1) + XFree86 */ 49 /* identical lines to above one, apart from refreshrate.. */ 50 { { 175500, 1600, 1664, 1856, 2160, 1200, 1201, 1204, 1250, T_POSITIVE_SYNC}, B_CMAP8, 1600, 1200, 0, 0, MODE_FLAGS}, /* Vesa_Monitor_@65Hz_(1600X1200X8.Z1) + XFree86 */ 51 { { 189000, 1600, 1664, 1856, 2160, 1200, 1201, 1204, 1250, T_POSITIVE_SYNC}, B_CMAP8, 1600, 1200, 0, 0, MODE_FLAGS}, /* Vesa_Monitor_@70Hz_(1600X1200X8.Z1) + XFree86 */ 52 { { 202500, 1600, 1664, 1856, 2160, 1200, 1201, 1204, 1250, T_POSITIVE_SYNC}, B_CMAP8, 1600, 1200, 0, 0, MODE_FLAGS}, /* Vesa_Monitor_@75Hz_(1600X1200X8.Z1) + XFree86 */ 53 { { 216000, 1600, 1664, 1856, 2160, 1200, 1201, 1204, 1250, T_POSITIVE_SYNC}, B_CMAP8, 1600, 1200, 0, 0, MODE_FLAGS}, /* Vesa_Monitor_@80Hz_(1600X1200X8.Z1) */ 54 { { 229500, 1600, 1664, 1856, 2160, 1200, 1201, 1204, 1250, T_POSITIVE_SYNC}, B_CMAP8, 1600, 1200, 0, 0, MODE_FLAGS}, /* Vesa_Monitor_@85Hz_(1600X1200X8.Z1) + XFree86 */ 55 /* end identical lines. */ 56 { { 204750, 1792, 1920, 2120, 2448, 1344, 1345, 1348, 1394, B_POSITIVE_VSYNC}, B_CMAP8, 1792, 1344, 0, 0, MODE_FLAGS}, /* Vesa_Monitor_@60Hz_(1792X1344) from Be, Inc. driver + XFree86 */ 57 { { 261000, 1792, 1888, 2104, 2456, 1344, 1345, 1348, 1417, B_POSITIVE_VSYNC}, B_CMAP8, 1792, 1344, 0, 0, MODE_FLAGS}, /* Vesa_Monitor_@75Hz_(1792X1344) from Be, Inc. driver + XFree86 */ 58 { { 218250, 1856, 1952, 2176, 2528, 1392, 1393, 1396, 1439, B_POSITIVE_VSYNC}, B_CMAP8, 1856, 1392, 0, 0, MODE_FLAGS}, /* Vesa_Monitor_@60Hz_(1856X1392) from Be, Inc. driver + XFree86 */ 59 { { 288000, 1856, 1984, 2208, 2560, 1392, 1393, 1396, 1500, B_POSITIVE_VSYNC}, B_CMAP8, 1856, 1392, 0, 0, MODE_FLAGS}, /* Vesa_Monitor_@75Hz_(1856X1392) from Be, Inc. driver + XFree86 */ 60 { { 234000, 1920, 2048, 2256, 2600, 1440, 1441, 1444, 1500, B_POSITIVE_VSYNC}, B_CMAP8, 1920, 1440, 0, 0, MODE_FLAGS}, /* Vesa_Monitor_@60Hz_(1920X1440) from Be, Inc. driver + XFree86 */ 61 { { 297000, 1920, 2064, 2288, 2640, 1440, 1441, 1444, 1500, B_POSITIVE_VSYNC}, B_CMAP8, 1920, 1440, 0, 0, MODE_FLAGS}, /* Vesa_Monitor_@75Hz_(1920X1440) from Be, Inc. driver + XFree86 */ 62 { { 266950, 2048, 2200, 2424, 2800, 1536, 1537, 1540, 1589, B_POSITIVE_VSYNC}, B_CMAP8, 2048, 1536, 0, 0, MODE_FLAGS}, /* From XFree86 posting @60Hz + XFree86 */ 63 }; 64 65 /* 66 Check mode is between low and high limits 67 returns: 68 B_OK - found one 69 B_BAD_VALUE - mode can be made, but outside limits 70 B_ERROR - not possible 71 */ 72 /* BOUNDS WARNING: 73 * BeOS (tested R5.0.3PE) is failing BWindowScreen.SetFrameBuffer() if PROPOSEMODE 74 * returns B_BAD_VALUE. It's called by the OS with target, low and high set to 75 * have the same settings for BWindowScreen! 76 * Which means we should not return B_BAD_VALUE on anything except for deviations on: 77 * display_mode.virtual_width; 78 * display_mode.virtual_height; 79 * display_mode.timing.h_display; 80 * display_mode.timing.v_display; 81 */ 82 /* Note: 83 * The target mode should be modified to correspond to the mode as it can be made. */ 84 status_t PROPOSE_DISPLAY_MODE(display_mode *target, const display_mode *low, const display_mode *high) 85 { 86 status_t status = B_OK; 87 float pix_clock_found; 88 uint8 m,n,p, bpp; 89 status_t result; 90 uint32 max_vclk, row_bytes, pointer_reservation; 91 bool acc_mode; 92 double target_refresh = ((double)target->timing.pixel_clock * 1000.0) / 93 ( 94 (double)target->timing.h_total * 95 (double)target->timing.v_total 96 ); 97 bool 98 want_same_width = target->timing.h_display == target->virtual_width, 99 want_same_height = target->timing.v_display == target->virtual_height; 100 101 LOG(1, ("PROPOSEMODE: (ENTER) requested virtual_width %d, virtual_height %d\n", 102 target->virtual_width, target->virtual_height)); 103 104 /*check valid list: 105 if (VALID_REQUIRED is set) 106 { 107 if (find modes with same size) 108 { 109 pick one with nearest pixel clock 110 } 111 else 112 { 113 pick next largest with nearest pixel clock and modify visible portion as far as possible 114 } 115 } 116 */ 117 #ifdef VALID_MODE_REQUIRED 118 { 119 int i; 120 int closest_mode_ptr; 121 uint32 closest_mode_clock; 122 123 LOG(1, ("PROPOSEMODE: valid mode required!\n")); 124 125 closest_mode_ptr = 0xbad; 126 closest_mode_clock = 0; 127 for (i=0;i<VALID_MODES;i++) 128 { 129 /*check size is ok and clock is better than any found before*/ 130 if( 131 target->timing.h_display==valid_mode_list[i].h_display && 132 target->timing.v_display==valid_mode_list[i].v_display 133 ) 134 { 135 if ( 136 abs(valid_mode_list[i].pixel_clock-target->timing.pixel_clock)< 137 abs(closest_mode_clock-target->timing.pixel_clock) 138 ) 139 { 140 closest_mode_clock=valid_mode_list[i].pixel_clock; 141 closest_mode_ptr=i; 142 } 143 } 144 } 145 146 if (closest_mode_ptr==0xbad)/*if no modes of correct size*/ 147 { 148 LOG(4, ("PROPOSEMODE: no valid mode found, aborted.\n")); 149 return B_ERROR; 150 } 151 else 152 { 153 target->timing=valid_mode_list[closest_mode_ptr]; 154 target_refresh = ((double)target->timing.pixel_clock * 1000.0) / /*I require this refresh*/ 155 ((double)target->timing.h_total * (double)target->timing.v_total); 156 } 157 } 158 #endif 159 160 /*find a nearby valid timing from that given*/ 161 result = gx00_crtc_validate_timing 162 ( 163 &target->timing.h_display, &target->timing.h_sync_start, &target->timing.h_sync_end, &target->timing.h_total, 164 &target->timing.v_display, &target->timing.v_sync_start, &target->timing.v_sync_end, &target->timing.v_total 165 ); 166 if (result == B_ERROR) 167 { 168 LOG(4, ("PROPOSEMODE: could not validate timing, aborted.\n")); 169 return result; 170 } 171 172 /* validate display vs. virtual */ 173 if ((target->timing.h_display > target->virtual_width) || want_same_width) 174 target->virtual_width = target->timing.h_display; 175 if ((target->timing.v_display > target->virtual_height) || want_same_height) 176 target->virtual_height = target->timing.v_display; 177 178 /* nail virtual size and 'subsequently' calculate rowbytes */ 179 result = gx00_general_validate_pic_size (target, &row_bytes, &acc_mode); 180 if (result == B_ERROR) 181 { 182 LOG(4, ("PROPOSEMODE: could not validate virtual picture size, aborted.\n")); 183 return result; 184 } 185 186 /*check if virtual_width is still within the requested limits*/ 187 if ((target->virtual_width < low->virtual_width) || 188 (target->virtual_width > high->virtual_width)) 189 { 190 status = B_BAD_VALUE; 191 LOG(4, ("PROPOSEMODE: WARNING: virtual_width deviates too much\n")); 192 } 193 194 /*check if timing found is within the requested horizontal limits*/ 195 if ((target->timing.h_display < low->timing.h_display) || 196 (target->timing.h_display > high->timing.h_display) || 197 (target->timing.h_sync_start < low->timing.h_sync_start) || 198 (target->timing.h_sync_start > high->timing.h_sync_start) || 199 (target->timing.h_sync_end < low->timing.h_sync_end) || 200 (target->timing.h_sync_end > high->timing.h_sync_end) || 201 (target->timing.h_total < low->timing.h_total) || 202 (target->timing.h_total > high->timing.h_total)) 203 { 204 /* BWindowScreen workaround: we accept everything except h_display deviations */ 205 if ((target->timing.h_display < low->timing.h_display) || 206 (target->timing.h_display > high->timing.h_display)) 207 { 208 status = B_BAD_VALUE; 209 } 210 else 211 { 212 status = B_OK; 213 } 214 LOG(4, ("PROPOSEMODE: WARNING: horizontal timing deviates too much\n")); 215 } 216 217 /*check if timing found is within the requested vertical limits*/ 218 if ( 219 (target->timing.v_display < low->timing.v_display) || 220 (target->timing.v_display > high->timing.v_display) || 221 (target->timing.v_sync_start < low->timing.v_sync_start) || 222 (target->timing.v_sync_start > high->timing.v_sync_start) || 223 (target->timing.v_sync_end < low->timing.v_sync_end) || 224 (target->timing.v_sync_end > high->timing.v_sync_end) || 225 (target->timing.v_total < low->timing.v_total) || 226 (target->timing.v_total > high->timing.v_total) 227 ) 228 { 229 /* BWindowScreen workaround: we accept everything except v_display deviations */ 230 if ((target->timing.v_display < low->timing.v_display) || 231 (target->timing.v_display > high->timing.v_display)) 232 { 233 status = B_BAD_VALUE; 234 } 235 else 236 { 237 status = B_OK; 238 } 239 LOG(4, ("PROPOSEMODE: WARNING: vertical timing deviates too much\n")); 240 } 241 242 /* adjust pixelclock for possible timing modifications done above */ 243 target->timing.pixel_clock = target_refresh * ((double)target->timing.h_total) * ((double)target->timing.v_total) / 1000.0; 244 245 /* Now find the nearest valid pixelclock we actually can setup for the target mode, 246 * this also makes sure we don't generate more pixel bandwidth than the device can handle */ 247 /* calculate settings, but do not actually test anything (that costs too much time!) */ 248 result = gx00_dac_pix_pll_find(*target,&pix_clock_found,&m,&n,&p,0); 249 /* update the target mode */ 250 target->timing.pixel_clock = (pix_clock_found * 1000); 251 252 /* note if we fell outside the limits */ 253 if ((target->timing.pixel_clock < low->timing.pixel_clock) || 254 (target->timing.pixel_clock > high->timing.pixel_clock) 255 ) 256 { 257 /* BWindowScreen workaround: we accept deviations <= 1Mhz */ 258 if ((target->timing.pixel_clock < (low->timing.pixel_clock - 1000)) || 259 (target->timing.pixel_clock > (high->timing.pixel_clock + 1000))) 260 { 261 status = B_BAD_VALUE; 262 } 263 else 264 { 265 status = B_OK; 266 } 267 LOG(4, ("PROPOSEMODE: WARNING: pixelclock deviates too much\n")); 268 } 269 270 /* checkout space needed for hardcursor (if any) */ 271 pointer_reservation = 0; 272 /* MIL 1/2 cards have a seperate buffer for the cursorbitmap inside the DAC */ 273 if ((si->ps.card_type >= G100) && si->settings.hardcursor) pointer_reservation = 1024; 274 /* memory requirement for frame buffer */ 275 if ((row_bytes * target->virtual_height) > 276 ((si->ps.memory_size * 1024 * 1024) - pointer_reservation)) 277 { 278 target->virtual_height = 279 ((si->ps.memory_size * 1024 * 1024) - pointer_reservation) / row_bytes; 280 } 281 if (target->virtual_height < target->timing.v_display) 282 { 283 LOG(4,("PROPOSEMODE: not enough memory for current mode, aborted.\n")); 284 return B_ERROR; 285 } 286 LOG(4,("PROPOSEMODE: validated virtual_width %d, virtual_height %d pixels\n", 287 target->virtual_width, target->virtual_height)); 288 289 if ((target->virtual_height < low->virtual_height) || 290 (target->virtual_height > high->virtual_height)) 291 { 292 status = B_BAD_VALUE; 293 LOG(4, ("PROPOSEMODE: WARNING: virtual_height deviates too much\n")); 294 } 295 296 /* setup status flags */ 297 LOG(1, ("PROPOSEMODE: initial modeflags: $%08x\n", target->flags)); 298 /* preset to singlehead card without TVout, no overlay support and no hardcursor. 299 * also advice system that app_server and acc engine may touch the framebuffer 300 * simultaneously (fixed). */ 301 target->flags &= 302 ~(DUALHEAD_CAPABLE | TV_CAPABLE | B_SUPPORTS_OVERLAYS | B_HARDWARE_CURSOR | B_IO_FB_NA); 303 /* we always allow parallel access (fixed), the DAC is always in 'enhanced' 304 * mode (fixed), and all modes support DPMS (fixed); 305 * We support scrolling and panning in every mode, so we 'send a signal' to 306 * BWindowScreen.CanControlFrameBuffer() by setting B_SCROLL. */ 307 /* BTW: B_PARALLEL_ACCESS in combination with a hardcursor enables 308 * BDirectWindow windowed modes. */ 309 target->flags |= (B_PARALLEL_ACCESS | B_8_BIT_DAC | B_DPMS | B_SCROLL); 310 311 /* determine the 'would be' max. pixelclock for the second DAC for the current videomode if dualhead were activated */ 312 switch (target->space) 313 { 314 case B_CMAP8: 315 max_vclk = si->ps.max_dac2_clock_8; 316 bpp = 1; 317 break; 318 case B_RGB15_LITTLE: 319 case B_RGB16_LITTLE: 320 max_vclk = si->ps.max_dac2_clock_16; 321 bpp = 2; 322 break; 323 case B_RGB24_LITTLE: 324 max_vclk = si->ps.max_dac2_clock_24; 325 bpp = 3; 326 break; 327 case B_RGB32_LITTLE: 328 max_vclk = si->ps.max_dac2_clock_32dh; 329 bpp = 4; 330 break; 331 default: 332 /* use fail-safe value */ 333 max_vclk = si->ps.max_dac2_clock_32dh; 334 bpp = 4; 335 break; 336 } 337 338 /* set DUALHEAD_CAPABLE if suitable */ 339 //fixme: update for independant secondary head use! (reserve fixed memory then) 340 if (si->ps.secondary_head && 341 ((target->space == B_RGB16_LITTLE) || (target->space == B_RGB32_LITTLE)) && 342 (target->timing.pixel_clock <= (max_vclk * 1000))) 343 { 344 /* extra line for G400 MAVEN vblank design fault workaround needed! */ 345 uint16 vblank_fix = 0; 346 if (si->ps.card_type <= G400MAX) vblank_fix = 1; 347 348 switch (target->flags & DUALHEAD_BITS) 349 { 350 case DUALHEAD_ON: 351 case DUALHEAD_SWITCH: 352 if ((((si->ps.memory_size * 1024 * 1024) - pointer_reservation) >= 353 (row_bytes * (target->virtual_height + vblank_fix))) && 354 ((uint16)(row_bytes / bpp) >= (target->timing.h_display * 2))) 355 { 356 target->flags |= DUALHEAD_CAPABLE; 357 } 358 break; 359 case DUALHEAD_CLONE: 360 if (((si->ps.memory_size * 1024 * 1024) - pointer_reservation) >= 361 (row_bytes * (target->virtual_height + vblank_fix))) 362 { 363 target->flags |= DUALHEAD_CAPABLE; 364 } 365 break; 366 case DUALHEAD_OFF: 367 if (((si->ps.memory_size * 1024 * 1024) - pointer_reservation) >= 368 (row_bytes * (target->virtual_height + vblank_fix) * 2)) 369 { 370 target->flags |= DUALHEAD_CAPABLE; 371 } 372 break; 373 } 374 } 375 376 /* set TV_CAPABLE if suitable: pixelclock is not important (defined by TVstandard) */ 377 //fixme: modify for G100 and G200 TVout later on... 378 if (target->flags & DUALHEAD_CAPABLE) 379 { 380 if (si->ps.secondary_tvout && 381 (target->timing.h_display <= 1024) && 382 (target->timing.v_display <= 768)) 383 { 384 target->flags |= TV_CAPABLE; 385 } 386 } 387 388 /* set HARDWARE_CURSOR mode if suitable */ 389 if (si->settings.hardcursor) 390 target->flags |= B_HARDWARE_CURSOR; 391 392 /* set SUPPORTS_OVERLAYS if suitable */ 393 if (si->ps.card_type >= G200) 394 target->flags |= B_SUPPORTS_OVERLAYS; 395 396 LOG(1, ("PROPOSEMODE: validated status modeflags: $%08x\n", target->flags)); 397 398 /* overrule timing command flags to be (fixed) blank_pedestal = 0.0IRE, 399 * progressive scan (fixed), and setup sync_on_green flag according to 400 * mga.settings options file */ 401 target->timing.flags &= ~(B_BLANK_PEDESTAL | B_TIMING_INTERLACED | B_SYNC_ON_GREEN); 402 if (si->settings.greensync) 403 target->timing.flags |= B_SYNC_ON_GREEN; 404 /* The HSYNC and VSYNC command flags are actually executed by the driver. */ 405 406 if (status == B_OK) LOG(4, ("PROPOSEMODE: completed successfully.\n")); 407 else LOG(4, ("PROPOSEMODE: mode can be made, but outside given limits.\n")); 408 return status; 409 } 410 411 /* Return the number of modes this device will return from GET_MODE_LIST(). 412 This is precalculated in create_mode_list (called from InitAccelerant stuff) 413 */ 414 uint32 ACCELERANT_MODE_COUNT(void) 415 { 416 LOG(1, ("ACCELERANT_MODE_COUNT: the modelist contains %d modes\n",si->mode_count)); 417 418 return si->mode_count; 419 } 420 421 /* Copy the list of guaranteed supported video modes to the location provided.*/ 422 status_t GET_MODE_LIST(display_mode *dm) 423 { 424 LOG(1, ("GET_MODE_LIST: exporting the modelist created before.\n")); 425 426 memcpy(dm, my_mode_list, si->mode_count * sizeof(display_mode)); 427 return B_OK; 428 } 429 430 /* Create a list of display_modes to pass back to the caller.*/ 431 status_t create_mode_list(void) { 432 size_t max_size; 433 uint32 434 i, j, 435 pix_clk_range; 436 const display_mode 437 *src; 438 display_mode 439 *dst, 440 low, 441 high; 442 443 color_space spaces[4] = {B_RGB32_LITTLE,B_RGB16_LITTLE,B_RGB15_LITTLE,B_CMAP8}; 444 445 /* figure out how big the list could be, and adjust up to nearest multiple of B_PAGE_SIZE*/ 446 max_size = (((MODE_COUNT * 4) * sizeof(display_mode)) + (B_PAGE_SIZE-1)) & ~(B_PAGE_SIZE-1); 447 /* create an area to hold the info */ 448 si->mode_area = my_mode_list_area = 449 create_area("MGA accelerant mode info", (void **)&my_mode_list, B_ANY_ADDRESS, max_size, B_NO_LOCK, B_READ_AREA | B_WRITE_AREA); 450 if (my_mode_list_area < B_OK) return my_mode_list_area; 451 452 /* walk through our predefined list and see which modes fit this device */ 453 src = mode_list; 454 dst = my_mode_list; 455 si->mode_count = 0; 456 for (i = 0; i < MODE_COUNT; i++) { 457 /* set ranges for acceptable values */ 458 low = high = *src; 459 /* range is 6.25% of default clock: arbitrarily picked */ 460 pix_clk_range = low.timing.pixel_clock >> 5; 461 low.timing.pixel_clock -= pix_clk_range; 462 high.timing.pixel_clock += pix_clk_range; 463 /* 'some cards need wider virtual widths for certain modes': 464 * Not true. They might need a wider pitch, but this is _not_ reflected in 465 * virtual_width, but in fbc.bytes_per_row. */ 466 //So disable next line: 467 //high.virtual_width = 4096; 468 /* do it once for each depth we want to support */ 469 for (j = 0; j < (sizeof(spaces) / sizeof(color_space)); j++) 470 { 471 /* set target values */ 472 *dst = *src; 473 /* poke the specific space */ 474 dst->space = low.space = high.space = spaces[j]; 475 /* ask for a compatible mode */ 476 /* We have to check for B_OK, because otherwise the pix_clk_range 477 * won't be taken into account!! */ 478 //So don't do this: 479 //if (PROPOSE_DISPLAY_MODE(dst, &low, &high) != B_ERROR) { 480 //Instead, do this: 481 if (PROPOSE_DISPLAY_MODE(dst, &low, &high) == B_OK) { 482 /* count it, and move on to next mode */ 483 dst++; 484 si->mode_count++; 485 } 486 } 487 /* advance to next mode */ 488 src++; 489 } 490 491 return B_OK; 492 } 493