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 */ 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 { { 38100, 800, 832, 960, 1088, 600, 602, 606, 620, 0}, B_CMAP8, 800, 600, 0, 0, MODE_FLAGS}, /* SVGA_800X600X56HzNI */ 30 { { 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) */ 31 { { 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) */ 32 { { 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) */ 33 { { 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) */ 34 { { 65000, 1024, 1048, 1184, 1344, 768, 771, 777, 806, 0}, B_CMAP8, 1024, 768, 0, 0, MODE_FLAGS}, /* Vesa_Monitor_@60Hz_(1024X768X8.Z1) */ 35 { { 75000, 1024, 1048, 1184, 1328, 768, 771, 777, 806, 0}, B_CMAP8, 1024, 768, 0, 0, MODE_FLAGS}, /* Vesa_Monitor_@70-72Hz_(1024X768X8.Z1) */ 36 { { 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) */ 37 { { 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) */ 38 { { 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) */ 39 { { 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) */ 40 { { 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) */ 41 { { 108000, 1280, 1328, 1440, 1680, 1024, 1025, 1028, 1066, T_POSITIVE_SYNC}, B_CMAP8, 1280, 1024, 0, 0, MODE_FLAGS}, /* Vesa_Monitor_@60Hz_(1280X1024X8.Z1) */ 42 }; 43 44 /* 45 Check mode is between low and high limits 46 returns: 47 B_OK - found one 48 B_BAD_VALUE - mode can be made, but outside limits 49 B_ERROR - not possible 50 */ 51 /* BOUNDS WARNING: 52 * BeOS (tested R5.0.3PE) is failing BWindowScreen.SetFrameBuffer() if PROPOSEMODE 53 * returns B_BAD_VALUE. It's called by the OS with target, low and high set to 54 * have the same settings for BWindowScreen! 55 * Which means we should not return B_BAD_VALUE on anything except for deviations on: 56 * display_mode.virtual_width; 57 * display_mode.virtual_height; 58 * display_mode.timing.h_display; 59 * display_mode.timing.v_display; 60 */ 61 /* Note: 62 * The target mode should be modified to correspond to the mode as it can be made. */ 63 status_t PROPOSE_DISPLAY_MODE(display_mode *target, const display_mode *low, const display_mode *high) 64 { 65 status_t status = B_OK; 66 float pix_clock_found; 67 uint8 m,n,p; 68 status_t result; 69 uint32 row_bytes, pointer_reservation; 70 double target_refresh = ((double)target->timing.pixel_clock * 1000.0) / 71 ( 72 (double)target->timing.h_total * 73 (double)target->timing.v_total 74 ); 75 bool 76 want_same_width = target->timing.h_display == target->virtual_width, 77 want_same_height = target->timing.v_display == target->virtual_height; 78 79 LOG(1, ("PROPOSEMODE: (ENTER) requested virtual_width %d, virtual_height %d\n", 80 target->virtual_width, target->virtual_height)); 81 82 /*check valid list: 83 if (VALID_REQUIRED is set) 84 { 85 if (find modes with same size) 86 { 87 pick one with nearest pixel clock 88 } 89 else 90 { 91 pick next largest with nearest pixel clock and modify visible portion as far as possible 92 } 93 } 94 */ 95 #ifdef VALID_MODE_REQUIRED 96 { 97 int i; 98 int closest_mode_ptr; 99 uint32 closest_mode_clock; 100 101 LOG(1, ("PROPOSEMODE: valid mode required!\n")); 102 103 closest_mode_ptr = 0xbad; 104 closest_mode_clock = 0; 105 for (i=0;i<VALID_MODES;i++) 106 { 107 /*check size is ok and clock is better than any found before*/ 108 if( 109 target->timing.h_display==valid_mode_list[i].h_display && 110 target->timing.v_display==valid_mode_list[i].v_display 111 ) 112 { 113 if ( 114 abs(valid_mode_list[i].pixel_clock-target->timing.pixel_clock)< 115 abs(closest_mode_clock-target->timing.pixel_clock) 116 ) 117 { 118 closest_mode_clock=valid_mode_list[i].pixel_clock; 119 closest_mode_ptr=i; 120 } 121 } 122 } 123 124 if (closest_mode_ptr==0xbad)/*if no modes of correct size*/ 125 { 126 LOG(4, ("PROPOSEMODE: no valid mode found, aborted.\n")); 127 return B_ERROR; 128 } 129 else 130 { 131 target->timing=valid_mode_list[closest_mode_ptr]; 132 target_refresh = ((double)target->timing.pixel_clock * 1000.0) / /*I require this refresh*/ 133 ((double)target->timing.h_total * (double)target->timing.v_total); 134 } 135 } 136 #endif 137 138 /*find a nearby valid timing from that given*/ 139 result = mn_crtc_validate_timing 140 ( 141 &target->timing.h_display, &target->timing.h_sync_start, &target->timing.h_sync_end, &target->timing.h_total, 142 &target->timing.v_display, &target->timing.v_sync_start, &target->timing.v_sync_end, &target->timing.v_total 143 ); 144 if (result == B_ERROR) 145 { 146 LOG(4, ("PROPOSEMODE: could not validate timing, aborted.\n")); 147 return result; 148 } 149 150 /* validate display vs. virtual */ 151 if ((target->timing.h_display > target->virtual_width) || want_same_width) 152 target->virtual_width = target->timing.h_display; 153 if ((target->timing.v_display > target->virtual_height) || want_same_height) 154 target->virtual_height = target->timing.v_display; 155 156 /* nail virtual size and 'subsequently' calculate rowbytes */ 157 result = mn_general_validate_pic_size (target, &row_bytes); 158 if (result == B_ERROR) 159 { 160 LOG(4, ("PROPOSEMODE: could not validate virtual picture size, aborted.\n")); 161 return result; 162 } 163 164 /*check if virtual_width is still within the requested limits*/ 165 if ((target->virtual_width < low->virtual_width) || 166 (target->virtual_width > high->virtual_width)) 167 { 168 status = B_BAD_VALUE; 169 LOG(4, ("PROPOSEMODE: WARNING: virtual_width deviates too much\n")); 170 } 171 172 /*check if timing found is within the requested horizontal limits*/ 173 if ((target->timing.h_display < low->timing.h_display) || 174 (target->timing.h_display > high->timing.h_display) || 175 (target->timing.h_sync_start < low->timing.h_sync_start) || 176 (target->timing.h_sync_start > high->timing.h_sync_start) || 177 (target->timing.h_sync_end < low->timing.h_sync_end) || 178 (target->timing.h_sync_end > high->timing.h_sync_end) || 179 (target->timing.h_total < low->timing.h_total) || 180 (target->timing.h_total > high->timing.h_total)) 181 { 182 /* BWindowScreen workaround: we accept everything except h_display deviations */ 183 if ((target->timing.h_display < low->timing.h_display) || 184 (target->timing.h_display > high->timing.h_display)) 185 { 186 status = B_BAD_VALUE; 187 } 188 else 189 { 190 status = B_OK; 191 } 192 LOG(4, ("PROPOSEMODE: WARNING: horizontal timing deviates too much\n")); 193 } 194 195 /*check if timing found is within the requested vertical limits*/ 196 if ( 197 (target->timing.v_display < low->timing.v_display) || 198 (target->timing.v_display > high->timing.v_display) || 199 (target->timing.v_sync_start < low->timing.v_sync_start) || 200 (target->timing.v_sync_start > high->timing.v_sync_start) || 201 (target->timing.v_sync_end < low->timing.v_sync_end) || 202 (target->timing.v_sync_end > high->timing.v_sync_end) || 203 (target->timing.v_total < low->timing.v_total) || 204 (target->timing.v_total > high->timing.v_total) 205 ) 206 { 207 /* BWindowScreen workaround: we accept everything except v_display deviations */ 208 if ((target->timing.v_display < low->timing.v_display) || 209 (target->timing.v_display > high->timing.v_display)) 210 { 211 status = B_BAD_VALUE; 212 } 213 else 214 { 215 status = B_OK; 216 } 217 LOG(4, ("PROPOSEMODE: WARNING: vertical timing deviates too much\n")); 218 } 219 220 /* adjust pixelclock for possible timing modifications done above */ 221 target->timing.pixel_clock = target_refresh * ((double)target->timing.h_total) * ((double)target->timing.v_total) / 1000.0; 222 223 /* Now find the nearest valid pixelclock we actually can setup for the target mode, 224 * this also makes sure we don't generate more pixel bandwidth than the device can handle */ 225 result = mn_dac_pix_pll_find(*target,&pix_clock_found,&m,&n,&p); 226 /* update the target mode */ 227 target->timing.pixel_clock = (pix_clock_found * 1000); 228 229 /* note if we fell outside the limits */ 230 if ((target->timing.pixel_clock < low->timing.pixel_clock) || 231 (target->timing.pixel_clock > high->timing.pixel_clock) 232 ) 233 { 234 /* BWindowScreen workaround: we accept deviations <= 1Mhz */ 235 if ((target->timing.pixel_clock < (low->timing.pixel_clock - 1000)) || 236 (target->timing.pixel_clock > (high->timing.pixel_clock + 1000))) 237 { 238 status = B_BAD_VALUE; 239 } 240 else 241 { 242 status = B_OK; 243 } 244 LOG(4, ("PROPOSEMODE: WARNING: pixelclock deviates too much\n")); 245 } 246 247 /* checkout space needed for hardcursor (if any) */ 248 pointer_reservation = 0; 249 if (si->settings.hardcursor) pointer_reservation = si->ps.curmem_size; 250 /* memory requirement for frame buffer */ 251 if ((row_bytes * target->virtual_height) > 252 ((si->ps.memory_size * 1024) - pointer_reservation)) 253 { 254 target->virtual_height = 255 ((si->ps.memory_size * 1024) - pointer_reservation) / row_bytes; 256 } 257 if (target->virtual_height < target->timing.v_display) 258 { 259 LOG(4,("PROPOSEMODE: not enough memory for current mode, aborted.\n")); 260 return B_ERROR; 261 } 262 LOG(4,("PROPOSEMODE: validated virtual_width %d, virtual_height %d pixels\n", 263 target->virtual_width, target->virtual_height)); 264 265 if ((target->virtual_height < low->virtual_height) || 266 (target->virtual_height > high->virtual_height)) 267 { 268 status = B_BAD_VALUE; 269 LOG(4, ("PROPOSEMODE: WARNING: virtual_height deviates too much\n")); 270 } 271 272 /* setup status flags */ 273 LOG(1, ("PROPOSEMODE: initial modeflags: $%08x\n", target->flags)); 274 /* preset to singlehead card without TVout, no overlay support and no hardcursor. 275 * also advice system that app_server and acc engine may touch the framebuffer 276 * simultaneously (fixed). */ 277 //fixme: introduce dualhead_clone_only flag compatible with matrox so the same prefs 278 //util can be used 279 target->flags &= 280 ~(DUALHEAD_CAPABLE | TV_CAPABLE | B_SUPPORTS_OVERLAYS | B_IO_FB_NA); 281 /* we always allow parallel access (fixed), the DAC is always in 'enhanced' 282 * mode (fixed), and all modes support DPMS (fixed); 283 * We support scrolling and panning in every mode, so we 'send a signal' to 284 * BWindowScreen.CanControlFrameBuffer() by setting B_SCROLL. */ 285 target->flags |= (B_PARALLEL_ACCESS | B_8_BIT_DAC | B_DPMS | B_SCROLL); 286 287 /* set HARDWARE_CURSOR mode if suitable */ 288 if (si->settings.hardcursor) 289 target->flags |= B_HARDWARE_CURSOR; 290 291 /* set SUPPORTS_OVERLAYS if suitable */ 292 if (si->ps.card_type > NM2070) 293 target->flags |= B_SUPPORTS_OVERLAYS; 294 295 LOG(1, ("PROPOSEMODE: validated status modeflags: $%08x\n", target->flags)); 296 297 /* overrule timing command flags to be (fixed) blank_pedestal = 0.0IRE, 298 * progressive scan (fixed), and sync_on_green not used */ 299 target->timing.flags &= ~(B_BLANK_PEDESTAL | B_TIMING_INTERLACED | B_SYNC_ON_GREEN); 300 /* The HSYNC and VSYNC command flags are actually executed by the driver. */ 301 302 if (status == B_OK) LOG(4, ("PROPOSEMODE: completed successfully.\n")); 303 else LOG(4, ("PROPOSEMODE: mode can be made, but outside given limits.\n")); 304 return status; 305 } 306 307 /* Return the number of modes this device will return from GET_MODE_LIST(). 308 This is precalculated in create_mode_list (called from InitAccelerant stuff) 309 */ 310 uint32 ACCELERANT_MODE_COUNT(void) 311 { 312 LOG(1, ("ACCELERANT_MODE_COUNT: the modelist contains %d modes\n",si->mode_count)); 313 314 return si->mode_count; 315 } 316 317 /* Copy the list of guaranteed supported video modes to the location provided.*/ 318 status_t GET_MODE_LIST(display_mode *dm) 319 { 320 LOG(1, ("GET_MODE_LIST: exporting the modelist created before.\n")); 321 322 memcpy(dm, my_mode_list, si->mode_count * sizeof(display_mode)); 323 return B_OK; 324 } 325 326 327 /* Create a list of display_modes to pass back to the caller.*/ 328 status_t create_mode_list(void) { 329 size_t max_size; 330 uint32 331 i, j, 332 pix_clk_range; 333 const display_mode 334 *src; 335 display_mode 336 *dst, 337 low, 338 high; 339 340 color_space spaces[4] = {B_RGB24_LITTLE,B_RGB16_LITTLE,B_RGB15_LITTLE,B_CMAP8}; 341 342 /* figure out how big the list could be, and adjust up to nearest multiple of B_PAGE_SIZE*/ 343 max_size = (((MODE_COUNT * 4) * sizeof(display_mode)) + (B_PAGE_SIZE-1)) & ~(B_PAGE_SIZE-1); 344 /* create an area to hold the info */ 345 si->mode_area = my_mode_list_area = 346 create_area("nm accelerant mode info", (void **)&my_mode_list, B_ANY_ADDRESS, max_size, B_NO_LOCK, B_READ_AREA | B_WRITE_AREA); 347 if (my_mode_list_area < B_OK) return my_mode_list_area; 348 349 /* walk through our predefined list and see which modes fit this device */ 350 src = mode_list; 351 dst = my_mode_list; 352 si->mode_count = 0; 353 for (i = 0; i < MODE_COUNT; i++) { 354 /* set ranges for acceptable values */ 355 low = high = *src; 356 /* range is 6.25% of default clock: arbitrarily picked */ 357 pix_clk_range = low.timing.pixel_clock >> 5; 358 low.timing.pixel_clock -= pix_clk_range; 359 high.timing.pixel_clock += pix_clk_range; 360 /* 'some cards need wider virtual widths for certain modes': 361 * Not true. They might need a wider pitch, but this is _not_ reflected in 362 * virtual_width, but in fbc.bytes_per_row. */ 363 //So disable next line: 364 //high.virtual_width = 4096; 365 /* do it once for each depth we want to support */ 366 for (j = 0; j < (sizeof(spaces) / sizeof(color_space)); j++) 367 { 368 /* set target values */ 369 *dst = *src; 370 /* poke the specific space */ 371 dst->space = low.space = high.space = spaces[j]; 372 /* ask for a compatible mode */ 373 /* We have to check for B_OK, because otherwise the pix_clk_range 374 * won't be taken into account!! */ 375 //So don't do this: 376 //if (PROPOSE_DISPLAY_MODE(dst, &low, &high) != B_ERROR) { 377 //Instead, do this: 378 if (PROPOSE_DISPLAY_MODE(dst, &low, &high) == B_OK) { 379 /* count it, and move on to next mode */ 380 dst++; 381 si->mode_count++; 382 } 383 } 384 /* advance to next mode */ 385 src++; 386 } 387 388 return B_OK; 389 } 390