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 nm driver: 6 Rudolf Cornelissen 4/2003-3/2004 7 */ 8 9 #define MODULE_BIT 0x00400000 10 11 #include "acc_std.h" 12 13 #define T_POSITIVE_SYNC (B_POSITIVE_HSYNC | B_POSITIVE_VSYNC) 14 /* mode flags will be setup as status info by PROPOSEMODE! */ 15 #define MODE_FLAGS 0 16 #define MODE_COUNT (sizeof (mode_list) / sizeof (display_mode)) 17 18 /*some monitors only handle a fixed set of modes*/ 19 #include "valid_mode_list" 20 21 /* Standard VESA modes within NM2380 range, which is the high-end supported NeoMagic card */ 22 static const display_mode mode_list[] = { 23 { { 25175, 640, 656, 752, 800, 480, 490, 492, 525, 0}, B_CMAP8, 640, 480, 0, 0, MODE_FLAGS}, /* Vesa_Monitor_@60Hz_(640X480X8.Z1) */ 24 { { 27500, 640, 672, 768, 864, 480, 488, 494, 530, 0}, B_CMAP8, 640, 480, 0, 0, MODE_FLAGS}, /* 640X480X60Hz */ 25 { { 30500, 640, 672, 768, 864, 480, 517, 523, 588, 0}, B_CMAP8, 640, 480, 0, 0, MODE_FLAGS}, /* SVGA_640X480X60HzNI */ 26 { { 31500, 640, 664, 704, 832, 480, 489, 492, 520, 0}, B_CMAP8, 640, 480, 0, 0, MODE_FLAGS}, /* Vesa_Monitor_@70-72Hz_(640X480X8.Z1) */ 27 { { 31500, 640, 656, 720, 840, 480, 481, 484, 500, 0}, B_CMAP8, 640, 480, 0, 0, MODE_FLAGS}, /* Vesa_Monitor_@75Hz_(640X480X8.Z1) */ 28 { { 36000, 640, 696, 752, 832, 480, 481, 484, 509, 0}, B_CMAP8, 640, 480, 0, 0, MODE_FLAGS}, /* Vesa_Monitor_@85Hz_(640X480X8.Z1) */ 29 { { 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 */ 30 { { 38100, 800, 832, 960, 1088, 600, 602, 606, 620, 0}, B_CMAP8, 800, 600, 0, 0, MODE_FLAGS}, /* SVGA_800X600X56HzNI */ 31 { { 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 */ 32 { { 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 */ 33 { { 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 */ 34 { { 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 */ 35 { { 65000, 1024, 1048, 1184, 1344, 768, 771, 777, 806, 0}, B_CMAP8, 1024, 768, 0, 0, MODE_FLAGS}, /* Vesa_Monitor_@60Hz_(1024X768X8.Z1) + XFree86 */ 36 { { 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 */ 37 { { 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 */ 38 { { 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 */ 39 { { 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) */ 40 { { 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) */ 41 { { 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 */ 42 { { 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 */ 43 }; 44 45 /* 46 Check mode is between low and high limits 47 returns: 48 B_OK - found one 49 B_BAD_VALUE - mode can be made, but outside limits 50 B_ERROR - not possible 51 */ 52 /* BOUNDS WARNING: 53 * BeOS (tested R5.0.3PE) is failing BWindowScreen.SetFrameBuffer() if PROPOSEMODE 54 * returns B_BAD_VALUE. It's called by the OS with target, low and high set to 55 * have the same settings for BWindowScreen! 56 * Which means we should not return B_BAD_VALUE on anything except for deviations on: 57 * display_mode.virtual_width; 58 * display_mode.virtual_height; 59 * display_mode.timing.h_display; 60 * display_mode.timing.v_display; 61 */ 62 /* Note: 63 * The target mode should be modified to correspond to the mode as it can be made. */ 64 status_t PROPOSE_DISPLAY_MODE(display_mode *target, const display_mode *low, const display_mode *high) 65 { 66 status_t status = B_OK; 67 float pix_clock_found; 68 uint8 m,n,p; 69 status_t result; 70 uint32 row_bytes, pointer_reservation; 71 bool acc_mode; 72 double target_refresh = ((double)target->timing.pixel_clock * 1000.0) / 73 ( 74 (double)target->timing.h_total * 75 (double)target->timing.v_total 76 ); 77 bool 78 want_same_width = target->timing.h_display == target->virtual_width, 79 want_same_height = target->timing.v_display == target->virtual_height; 80 81 LOG(1, ("PROPOSEMODE: (ENTER) requested virtual_width %d, virtual_height %d\n", 82 target->virtual_width, target->virtual_height)); 83 84 /*check valid list: 85 if (VALID_REQUIRED is set) 86 { 87 if (find modes with same size) 88 { 89 pick one with nearest pixel clock 90 } 91 else 92 { 93 pick next largest with nearest pixel clock and modify visible portion as far as possible 94 } 95 } 96 */ 97 #ifdef VALID_MODE_REQUIRED 98 { 99 int i; 100 int closest_mode_ptr; 101 uint32 closest_mode_clock; 102 103 LOG(1, ("PROPOSEMODE: valid mode required!\n")); 104 105 closest_mode_ptr = 0xbad; 106 closest_mode_clock = 0; 107 for (i=0;i<VALID_MODES;i++) 108 { 109 /*check size is ok and clock is better than any found before*/ 110 if( 111 target->timing.h_display==valid_mode_list[i].h_display && 112 target->timing.v_display==valid_mode_list[i].v_display 113 ) 114 { 115 if ( 116 abs(valid_mode_list[i].pixel_clock-target->timing.pixel_clock)< 117 abs(closest_mode_clock-target->timing.pixel_clock) 118 ) 119 { 120 closest_mode_clock=valid_mode_list[i].pixel_clock; 121 closest_mode_ptr=i; 122 } 123 } 124 } 125 126 if (closest_mode_ptr==0xbad)/*if no modes of correct size*/ 127 { 128 LOG(4, ("PROPOSEMODE: no valid mode found, aborted.\n")); 129 return B_ERROR; 130 } 131 else 132 { 133 target->timing=valid_mode_list[closest_mode_ptr]; 134 target_refresh = ((double)target->timing.pixel_clock * 1000.0) / /*I require this refresh*/ 135 ((double)target->timing.h_total * (double)target->timing.v_total); 136 } 137 } 138 #endif 139 140 /* NM2070 cannot do 24 bit color */ 141 if ((si->ps.card_type == NM2070) && (target->space == B_RGB24_LITTLE)) 142 { 143 LOG(4, ("PROPOSEMODE: 24bit color not supported on NM2070, aborted.\n")); 144 return B_ERROR; 145 } 146 147 /*find a nearby valid timing from that given*/ 148 result = nm_crtc_validate_timing 149 ( 150 &target->timing.h_display, &target->timing.h_sync_start, &target->timing.h_sync_end, &target->timing.h_total, 151 &target->timing.v_display, &target->timing.v_sync_start, &target->timing.v_sync_end, &target->timing.v_total 152 ); 153 if (result == B_ERROR) 154 { 155 LOG(4, ("PROPOSEMODE: could not validate timing, aborted.\n")); 156 return result; 157 } 158 159 /* validate display vs. virtual */ 160 if ((target->timing.h_display > target->virtual_width) || want_same_width) 161 target->virtual_width = target->timing.h_display; 162 if ((target->timing.v_display > target->virtual_height) || want_same_height) 163 target->virtual_height = target->timing.v_display; 164 165 /* nail virtual size and 'subsequently' calculate rowbytes */ 166 result = nm_general_validate_pic_size (target, &row_bytes, &acc_mode); 167 if (result == B_ERROR) 168 { 169 LOG(4, ("PROPOSEMODE: could not validate virtual picture size, aborted.\n")); 170 return result; 171 } 172 173 /*check if virtual_width is still within the requested limits*/ 174 if ((target->virtual_width < low->virtual_width) || 175 (target->virtual_width > high->virtual_width)) 176 { 177 status = B_BAD_VALUE; 178 LOG(4, ("PROPOSEMODE: WARNING: virtual_width deviates too much\n")); 179 } 180 181 /*check if timing found is within the requested horizontal limits*/ 182 if ((target->timing.h_display < low->timing.h_display) || 183 (target->timing.h_display > high->timing.h_display) || 184 (target->timing.h_sync_start < low->timing.h_sync_start) || 185 (target->timing.h_sync_start > high->timing.h_sync_start) || 186 (target->timing.h_sync_end < low->timing.h_sync_end) || 187 (target->timing.h_sync_end > high->timing.h_sync_end) || 188 (target->timing.h_total < low->timing.h_total) || 189 (target->timing.h_total > high->timing.h_total)) 190 { 191 /* BWindowScreen workaround: we accept everything except h_display deviations */ 192 if ((target->timing.h_display < low->timing.h_display) || 193 (target->timing.h_display > high->timing.h_display)) 194 { 195 status = B_BAD_VALUE; 196 } 197 else 198 { 199 status = B_OK; 200 } 201 LOG(4, ("PROPOSEMODE: WARNING: horizontal timing deviates too much\n")); 202 } 203 204 /*check if timing found is within the requested vertical limits*/ 205 if ( 206 (target->timing.v_display < low->timing.v_display) || 207 (target->timing.v_display > high->timing.v_display) || 208 (target->timing.v_sync_start < low->timing.v_sync_start) || 209 (target->timing.v_sync_start > high->timing.v_sync_start) || 210 (target->timing.v_sync_end < low->timing.v_sync_end) || 211 (target->timing.v_sync_end > high->timing.v_sync_end) || 212 (target->timing.v_total < low->timing.v_total) || 213 (target->timing.v_total > high->timing.v_total) 214 ) 215 { 216 /* BWindowScreen workaround: we accept everything except v_display deviations */ 217 if ((target->timing.v_display < low->timing.v_display) || 218 (target->timing.v_display > high->timing.v_display)) 219 { 220 status = B_BAD_VALUE; 221 } 222 else 223 { 224 status = B_OK; 225 } 226 LOG(4, ("PROPOSEMODE: WARNING: vertical timing deviates too much\n")); 227 } 228 229 /* adjust pixelclock for possible timing modifications done above */ 230 target->timing.pixel_clock = target_refresh * ((double)target->timing.h_total) * ((double)target->timing.v_total) / 1000.0; 231 232 /* Now find the nearest valid pixelclock we actually can setup for the target mode, 233 * this also makes sure we don't generate more pixel bandwidth than the device can handle */ 234 result = nm_dac_pix_pll_find(*target,&pix_clock_found,&m,&n,&p); 235 /* update the target mode */ 236 target->timing.pixel_clock = (pix_clock_found * 1000); 237 238 /* note if we fell outside the limits */ 239 if ((target->timing.pixel_clock < low->timing.pixel_clock) || 240 (target->timing.pixel_clock > high->timing.pixel_clock) 241 ) 242 { 243 /* BWindowScreen workaround: we accept deviations <= 1Mhz */ 244 if ((target->timing.pixel_clock < (low->timing.pixel_clock - 1000)) || 245 (target->timing.pixel_clock > (high->timing.pixel_clock + 1000))) 246 { 247 status = B_BAD_VALUE; 248 } 249 else 250 { 251 status = B_OK; 252 } 253 LOG(4, ("PROPOSEMODE: WARNING: pixelclock deviates too much\n")); 254 } 255 256 /* checkout space needed for hardcursor (if any) */ 257 pointer_reservation = 0; 258 if (si->settings.hardcursor) pointer_reservation = si->ps.curmem_size; 259 /* memory requirement for frame buffer */ 260 if ((row_bytes * target->virtual_height) > 261 ((si->ps.memory_size * 1024) - pointer_reservation)) 262 { 263 target->virtual_height = 264 ((si->ps.memory_size * 1024) - pointer_reservation) / row_bytes; 265 } 266 if (target->virtual_height < target->timing.v_display) 267 { 268 LOG(4,("PROPOSEMODE: not enough memory for current mode, aborted.\n")); 269 return B_ERROR; 270 } 271 LOG(4,("PROPOSEMODE: validated virtual_width %d, virtual_height %d pixels\n", 272 target->virtual_width, target->virtual_height)); 273 274 if ((target->virtual_height < low->virtual_height) || 275 (target->virtual_height > high->virtual_height)) 276 { 277 status = B_BAD_VALUE; 278 LOG(4, ("PROPOSEMODE: WARNING: virtual_height deviates too much\n")); 279 } 280 281 /* setup status flags */ 282 LOG(1, ("PROPOSEMODE: initial modeflags: $%08x\n", target->flags)); 283 /* preset to singlehead card without TVout, no overlay support and no hardcursor. 284 * also advice system that app_server and acc engine may touch the framebuffer 285 * simultaneously (fixed). */ 286 //fixme: introduce dualhead_clone_only flag compatible with matrox so the same prefs 287 //util can be used 288 target->flags &= 289 ~(DUALHEAD_CAPABLE | TV_CAPABLE | B_SUPPORTS_OVERLAYS | B_IO_FB_NA); 290 /* we always allow parallel access (fixed), the DAC is always in 'enhanced' 291 * mode (fixed), and all modes support DPMS (fixed); 292 * We support scrolling and panning in every mode, so we 'send a signal' to 293 * BWindowScreen.CanControlFrameBuffer() by setting B_SCROLL. */ 294 /* BTW: B_PARALLEL_ACCESS in combination with a hardcursor enables 295 * BDirectWindow windowed modes. */ 296 target->flags |= (B_PARALLEL_ACCESS | B_8_BIT_DAC | B_DPMS | B_SCROLL); 297 298 /* set HARDWARE_CURSOR mode if suitable */ 299 if (si->settings.hardcursor) 300 target->flags |= B_HARDWARE_CURSOR; 301 302 /* set SUPPORTS_OVERLAYS if suitable */ 303 if (si->ps.card_type > NM2070) 304 target->flags |= B_SUPPORTS_OVERLAYS; 305 306 LOG(1, ("PROPOSEMODE: validated status modeflags: $%08x\n", target->flags)); 307 308 /* overrule timing command flags to be (fixed) blank_pedestal = 0.0IRE, 309 * progressive scan (fixed), and sync_on_green not used */ 310 target->timing.flags &= ~(B_BLANK_PEDESTAL | B_TIMING_INTERLACED | B_SYNC_ON_GREEN); 311 /* The HSYNC and VSYNC command flags are actually executed by the driver. */ 312 313 if (status == B_OK) LOG(4, ("PROPOSEMODE: completed successfully.\n")); 314 else LOG(4, ("PROPOSEMODE: mode can be made, but outside given limits.\n")); 315 return status; 316 } 317 318 /* Return the number of modes this device will return from GET_MODE_LIST(). 319 This is precalculated in create_mode_list (called from InitAccelerant stuff) 320 */ 321 uint32 ACCELERANT_MODE_COUNT(void) 322 { 323 LOG(1, ("ACCELERANT_MODE_COUNT: the modelist contains %d modes\n",si->mode_count)); 324 325 return si->mode_count; 326 } 327 328 /* Copy the list of guaranteed supported video modes to the location provided.*/ 329 status_t GET_MODE_LIST(display_mode *dm) 330 { 331 LOG(1, ("GET_MODE_LIST: exporting the modelist created before.\n")); 332 333 memcpy(dm, my_mode_list, si->mode_count * sizeof(display_mode)); 334 return B_OK; 335 } 336 337 /* Create a list of display_modes to pass back to the caller.*/ 338 status_t create_mode_list(void) { 339 size_t max_size; 340 uint32 341 i, j, 342 pix_clk_range; 343 const display_mode 344 *src; 345 display_mode 346 *dst, 347 low, 348 high; 349 350 color_space spaces[4] = {B_RGB24_LITTLE,B_RGB16_LITTLE,B_RGB15_LITTLE,B_CMAP8}; 351 352 /* figure out how big the list could be, and adjust up to nearest multiple of B_PAGE_SIZE*/ 353 max_size = (((MODE_COUNT * 4) * sizeof(display_mode)) + (B_PAGE_SIZE-1)) & ~(B_PAGE_SIZE-1); 354 /* create an area to hold the info */ 355 si->mode_area = my_mode_list_area = 356 create_area("nm accelerant mode info", (void **)&my_mode_list, B_ANY_ADDRESS, max_size, B_NO_LOCK, B_READ_AREA | B_WRITE_AREA); 357 if (my_mode_list_area < B_OK) return my_mode_list_area; 358 359 /* walk through our predefined list and see which modes fit this device */ 360 src = mode_list; 361 dst = my_mode_list; 362 si->mode_count = 0; 363 for (i = 0; i < MODE_COUNT; i++) { 364 /* set ranges for acceptable values */ 365 low = high = *src; 366 /* range is 6.25% of default clock: arbitrarily picked */ 367 pix_clk_range = low.timing.pixel_clock >> 5; 368 low.timing.pixel_clock -= pix_clk_range; 369 high.timing.pixel_clock += pix_clk_range; 370 /* 'some cards need wider virtual widths for certain modes': 371 * Not true. They might need a wider pitch, but this is _not_ reflected in 372 * virtual_width, but in fbc.bytes_per_row. */ 373 //So disable next line: 374 //high.virtual_width = 4096; 375 /* do it once for each depth we want to support */ 376 for (j = 0; j < (sizeof(spaces) / sizeof(color_space)); j++) 377 { 378 /* set target values */ 379 *dst = *src; 380 /* poke the specific space */ 381 dst->space = low.space = high.space = spaces[j]; 382 /* ask for a compatible mode */ 383 /* We have to check for B_OK, because otherwise the pix_clk_range 384 * won't be taken into account!! */ 385 //So don't do this: 386 //if (PROPOSE_DISPLAY_MODE(dst, &low, &high) != B_ERROR) { 387 //Instead, do this: 388 if (PROPOSE_DISPLAY_MODE(dst, &low, &high) == B_OK) { 389 /* count it, and move on to next mode */ 390 dst++; 391 si->mode_count++; 392 } 393 } 394 /* advance to next mode */ 395 src++; 396 } 397 398 return B_OK; 399 } 400