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 4/2003-1/2004 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 /*find a nearby valid timing from that given*/ 141 result = nm_crtc_validate_timing 142 ( 143 &target->timing.h_display, &target->timing.h_sync_start, &target->timing.h_sync_end, &target->timing.h_total, 144 &target->timing.v_display, &target->timing.v_sync_start, &target->timing.v_sync_end, &target->timing.v_total 145 ); 146 if (result == B_ERROR) 147 { 148 LOG(4, ("PROPOSEMODE: could not validate timing, aborted.\n")); 149 return result; 150 } 151 152 /* validate display vs. virtual */ 153 if ((target->timing.h_display > target->virtual_width) || want_same_width) 154 target->virtual_width = target->timing.h_display; 155 if ((target->timing.v_display > target->virtual_height) || want_same_height) 156 target->virtual_height = target->timing.v_display; 157 158 /* nail virtual size and 'subsequently' calculate rowbytes */ 159 result = nm_general_validate_pic_size (target, &row_bytes, &acc_mode); 160 if (result == B_ERROR) 161 { 162 LOG(4, ("PROPOSEMODE: could not validate virtual picture size, aborted.\n")); 163 return result; 164 } 165 166 /*check if virtual_width is still within the requested limits*/ 167 if ((target->virtual_width < low->virtual_width) || 168 (target->virtual_width > high->virtual_width)) 169 { 170 status = B_BAD_VALUE; 171 LOG(4, ("PROPOSEMODE: WARNING: virtual_width deviates too much\n")); 172 } 173 174 /*check if timing found is within the requested horizontal limits*/ 175 if ((target->timing.h_display < low->timing.h_display) || 176 (target->timing.h_display > high->timing.h_display) || 177 (target->timing.h_sync_start < low->timing.h_sync_start) || 178 (target->timing.h_sync_start > high->timing.h_sync_start) || 179 (target->timing.h_sync_end < low->timing.h_sync_end) || 180 (target->timing.h_sync_end > high->timing.h_sync_end) || 181 (target->timing.h_total < low->timing.h_total) || 182 (target->timing.h_total > high->timing.h_total)) 183 { 184 /* BWindowScreen workaround: we accept everything except h_display deviations */ 185 if ((target->timing.h_display < low->timing.h_display) || 186 (target->timing.h_display > high->timing.h_display)) 187 { 188 status = B_BAD_VALUE; 189 } 190 else 191 { 192 status = B_OK; 193 } 194 LOG(4, ("PROPOSEMODE: WARNING: horizontal timing deviates too much\n")); 195 } 196 197 /*check if timing found is within the requested vertical limits*/ 198 if ( 199 (target->timing.v_display < low->timing.v_display) || 200 (target->timing.v_display > high->timing.v_display) || 201 (target->timing.v_sync_start < low->timing.v_sync_start) || 202 (target->timing.v_sync_start > high->timing.v_sync_start) || 203 (target->timing.v_sync_end < low->timing.v_sync_end) || 204 (target->timing.v_sync_end > high->timing.v_sync_end) || 205 (target->timing.v_total < low->timing.v_total) || 206 (target->timing.v_total > high->timing.v_total) 207 ) 208 { 209 /* BWindowScreen workaround: we accept everything except v_display deviations */ 210 if ((target->timing.v_display < low->timing.v_display) || 211 (target->timing.v_display > high->timing.v_display)) 212 { 213 status = B_BAD_VALUE; 214 } 215 else 216 { 217 status = B_OK; 218 } 219 LOG(4, ("PROPOSEMODE: WARNING: vertical timing deviates too much\n")); 220 } 221 222 /* adjust pixelclock for possible timing modifications done above */ 223 target->timing.pixel_clock = target_refresh * ((double)target->timing.h_total) * ((double)target->timing.v_total) / 1000.0; 224 225 /* Now find the nearest valid pixelclock we actually can setup for the target mode, 226 * this also makes sure we don't generate more pixel bandwidth than the device can handle */ 227 result = nm_dac_pix_pll_find(*target,&pix_clock_found,&m,&n,&p); 228 /* update the target mode */ 229 target->timing.pixel_clock = (pix_clock_found * 1000); 230 231 /* note if we fell outside the limits */ 232 if ((target->timing.pixel_clock < low->timing.pixel_clock) || 233 (target->timing.pixel_clock > high->timing.pixel_clock) 234 ) 235 { 236 /* BWindowScreen workaround: we accept deviations <= 1Mhz */ 237 if ((target->timing.pixel_clock < (low->timing.pixel_clock - 1000)) || 238 (target->timing.pixel_clock > (high->timing.pixel_clock + 1000))) 239 { 240 status = B_BAD_VALUE; 241 } 242 else 243 { 244 status = B_OK; 245 } 246 LOG(4, ("PROPOSEMODE: WARNING: pixelclock deviates too much\n")); 247 } 248 249 /* checkout space needed for hardcursor (if any) */ 250 pointer_reservation = 0; 251 if (si->settings.hardcursor) pointer_reservation = si->ps.curmem_size; 252 /* memory requirement for frame buffer */ 253 if ((row_bytes * target->virtual_height) > 254 ((si->ps.memory_size * 1024) - pointer_reservation)) 255 { 256 target->virtual_height = 257 ((si->ps.memory_size * 1024) - pointer_reservation) / row_bytes; 258 } 259 if (target->virtual_height < target->timing.v_display) 260 { 261 LOG(4,("PROPOSEMODE: not enough memory for current mode, aborted.\n")); 262 return B_ERROR; 263 } 264 LOG(4,("PROPOSEMODE: validated virtual_width %d, virtual_height %d pixels\n", 265 target->virtual_width, target->virtual_height)); 266 267 if ((target->virtual_height < low->virtual_height) || 268 (target->virtual_height > high->virtual_height)) 269 { 270 status = B_BAD_VALUE; 271 LOG(4, ("PROPOSEMODE: WARNING: virtual_height deviates too much\n")); 272 } 273 274 /* setup status flags */ 275 LOG(1, ("PROPOSEMODE: initial modeflags: $%08x\n", target->flags)); 276 /* preset to singlehead card without TVout, no overlay support and no hardcursor. 277 * also advice system that app_server and acc engine may touch the framebuffer 278 * simultaneously (fixed). */ 279 //fixme: introduce dualhead_clone_only flag compatible with matrox so the same prefs 280 //util can be used 281 target->flags &= 282 ~(DUALHEAD_CAPABLE | TV_CAPABLE | B_SUPPORTS_OVERLAYS | B_IO_FB_NA); 283 /* we always allow parallel access (fixed), the DAC is always in 'enhanced' 284 * mode (fixed), and all modes support DPMS (fixed); 285 * We support scrolling and panning in every mode, so we 'send a signal' to 286 * BWindowScreen.CanControlFrameBuffer() by setting B_SCROLL. */ 287 /* BTW: B_PARALLEL_ACCESS in combination with a hardcursor enables 288 * BDirectWindow windowed modes. */ 289 target->flags |= (B_PARALLEL_ACCESS | B_8_BIT_DAC | B_DPMS | B_SCROLL); 290 291 /* set HARDWARE_CURSOR mode if suitable */ 292 if (si->settings.hardcursor) 293 target->flags |= B_HARDWARE_CURSOR; 294 295 /* set SUPPORTS_OVERLAYS if suitable */ 296 if (si->ps.card_type > NM2070) 297 target->flags |= B_SUPPORTS_OVERLAYS; 298 299 LOG(1, ("PROPOSEMODE: validated status modeflags: $%08x\n", target->flags)); 300 301 /* overrule timing command flags to be (fixed) blank_pedestal = 0.0IRE, 302 * progressive scan (fixed), and sync_on_green not used */ 303 target->timing.flags &= ~(B_BLANK_PEDESTAL | B_TIMING_INTERLACED | B_SYNC_ON_GREEN); 304 /* The HSYNC and VSYNC command flags are actually executed by the driver. */ 305 306 if (status == B_OK) LOG(4, ("PROPOSEMODE: completed successfully.\n")); 307 else LOG(4, ("PROPOSEMODE: mode can be made, but outside given limits.\n")); 308 return status; 309 } 310 311 /* Return the number of modes this device will return from GET_MODE_LIST(). 312 This is precalculated in create_mode_list (called from InitAccelerant stuff) 313 */ 314 uint32 ACCELERANT_MODE_COUNT(void) 315 { 316 LOG(1, ("ACCELERANT_MODE_COUNT: the modelist contains %d modes\n",si->mode_count)); 317 318 return si->mode_count; 319 } 320 321 /* Copy the list of guaranteed supported video modes to the location provided.*/ 322 status_t GET_MODE_LIST(display_mode *dm) 323 { 324 LOG(1, ("GET_MODE_LIST: exporting the modelist created before.\n")); 325 326 memcpy(dm, my_mode_list, si->mode_count * sizeof(display_mode)); 327 return B_OK; 328 } 329 330 /* Create a list of display_modes to pass back to the caller.*/ 331 status_t create_mode_list(void) { 332 size_t max_size; 333 uint32 334 i, j, 335 pix_clk_range; 336 const display_mode 337 *src; 338 display_mode 339 *dst, 340 low, 341 high; 342 343 color_space spaces[4] = {B_RGB24_LITTLE,B_RGB16_LITTLE,B_RGB15_LITTLE,B_CMAP8}; 344 345 /* figure out how big the list could be, and adjust up to nearest multiple of B_PAGE_SIZE*/ 346 max_size = (((MODE_COUNT * 4) * sizeof(display_mode)) + (B_PAGE_SIZE-1)) & ~(B_PAGE_SIZE-1); 347 /* create an area to hold the info */ 348 si->mode_area = my_mode_list_area = 349 create_area("nm accelerant mode info", (void **)&my_mode_list, B_ANY_ADDRESS, max_size, B_NO_LOCK, B_READ_AREA | B_WRITE_AREA); 350 if (my_mode_list_area < B_OK) return my_mode_list_area; 351 352 /* walk through our predefined list and see which modes fit this device */ 353 src = mode_list; 354 dst = my_mode_list; 355 si->mode_count = 0; 356 for (i = 0; i < MODE_COUNT; i++) { 357 /* set ranges for acceptable values */ 358 low = high = *src; 359 /* range is 6.25% of default clock: arbitrarily picked */ 360 pix_clk_range = low.timing.pixel_clock >> 5; 361 low.timing.pixel_clock -= pix_clk_range; 362 high.timing.pixel_clock += pix_clk_range; 363 /* 'some cards need wider virtual widths for certain modes': 364 * Not true. They might need a wider pitch, but this is _not_ reflected in 365 * virtual_width, but in fbc.bytes_per_row. */ 366 //So disable next line: 367 //high.virtual_width = 4096; 368 /* do it once for each depth we want to support */ 369 for (j = 0; j < (sizeof(spaces) / sizeof(color_space)); j++) 370 { 371 /* set target values */ 372 *dst = *src; 373 /* poke the specific space */ 374 dst->space = low.space = high.space = spaces[j]; 375 /* ask for a compatible mode */ 376 /* We have to check for B_OK, because otherwise the pix_clk_range 377 * won't be taken into account!! */ 378 //So don't do this: 379 //if (PROPOSE_DISPLAY_MODE(dst, &low, &high) != B_ERROR) { 380 //Instead, do this: 381 if (PROPOSE_DISPLAY_MODE(dst, &low, &high) == B_OK) { 382 /* count it, and move on to next mode */ 383 dst++; 384 si->mode_count++; 385 } 386 } 387 /* advance to next mode */ 388 src++; 389 } 390 391 return B_OK; 392 } 393