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1/* 2 * 3 * Hardware accelerated Matrox Millennium I, II, Mystique, G100, G200, G400 and G450. 4 * 5 * (c) 1998-2002 Petr Vandrovec <vandrove@vc.cvut.cz> 6 * 7 * Portions Copyright (c) 2001 Matrox Graphics Inc. 8 * 9 * Version: 1.65 2002/08/14 10 * 11 * See matroxfb_base.c for contributors. 12 * 13 */ 14 15#include "matroxfb_base.h" 16#include "matroxfb_misc.h" 17#include "matroxfb_DAC1064.h" 18#include "g450_pll.h" 19#include <linux/matroxfb.h> 20#include <asm/uaccess.h> 21#include <asm/div64.h> 22 23/* Definition of the various controls */ 24struct mctl { 25 struct v4l2_queryctrl desc; 26 size_t control; 27}; 28 29#define BLMIN 0xF3 30#define WLMAX 0x3FF 31 32static const struct mctl g450_controls[] = 33{ { { V4L2_CID_BRIGHTNESS, V4L2_CTRL_TYPE_INTEGER, 34 "brightness", 35 0, WLMAX-BLMIN, 1, 370-BLMIN, 36 0, 37 }, offsetof(struct matrox_fb_info, altout.tvo_params.brightness) }, 38 { { V4L2_CID_CONTRAST, V4L2_CTRL_TYPE_INTEGER, 39 "contrast", 40 0, 1023, 1, 127, 41 0, 42 }, offsetof(struct matrox_fb_info, altout.tvo_params.contrast) }, 43 { { V4L2_CID_SATURATION, V4L2_CTRL_TYPE_INTEGER, 44 "saturation", 45 0, 255, 1, 165, 46 0, 47 }, offsetof(struct matrox_fb_info, altout.tvo_params.saturation) }, 48 { { V4L2_CID_HUE, V4L2_CTRL_TYPE_INTEGER, 49 "hue", 50 0, 255, 1, 0, 51 0, 52 }, offsetof(struct matrox_fb_info, altout.tvo_params.hue) }, 53 { { MATROXFB_CID_TESTOUT, V4L2_CTRL_TYPE_BOOLEAN, 54 "test output", 55 0, 1, 1, 0, 56 0, 57 }, offsetof(struct matrox_fb_info, altout.tvo_params.testout) }, 58}; 59 60#define G450CTRLS (sizeof(g450_controls)/sizeof(g450_controls[0])) 61 62/* Return: positive number: id found 63 -EINVAL: id not found, return failure 64 -ENOENT: id not found, create fake disabled control */ 65static int get_ctrl_id(__u32 v4l2_id) { 66 int i; 67 68 for (i = 0; i < G450CTRLS; i++) { 69 if (v4l2_id < g450_controls[i].desc.id) { 70 if (g450_controls[i].desc.id == 0x08000000) { 71 return -EINVAL; 72 } 73 return -ENOENT; 74 } 75 if (v4l2_id == g450_controls[i].desc.id) { 76 return i; 77 } 78 } 79 return -EINVAL; 80} 81 82static inline int* get_ctrl_ptr(WPMINFO unsigned int idx) { 83 return (int*)((char*)MINFO + g450_controls[idx].control); 84} 85 86static void tvo_fill_defaults(WPMINFO2) { 87 unsigned int i; 88 89 for (i = 0; i < G450CTRLS; i++) { 90 *get_ctrl_ptr(PMINFO i) = g450_controls[i].desc.default_value; 91 } 92} 93 94static int cve2_get_reg(WPMINFO int reg) { 95 unsigned long flags; 96 int val; 97 98 matroxfb_DAC_lock_irqsave(flags); 99 matroxfb_DAC_out(PMINFO 0x87, reg); 100 val = matroxfb_DAC_in(PMINFO 0x88); 101 matroxfb_DAC_unlock_irqrestore(flags); 102 return val; 103} 104 105static void cve2_set_reg(WPMINFO int reg, int val) { 106 unsigned long flags; 107 108 matroxfb_DAC_lock_irqsave(flags); 109 matroxfb_DAC_out(PMINFO 0x87, reg); 110 matroxfb_DAC_out(PMINFO 0x88, val); 111 matroxfb_DAC_unlock_irqrestore(flags); 112} 113 114static void cve2_set_reg10(WPMINFO int reg, int val) { 115 unsigned long flags; 116 117 matroxfb_DAC_lock_irqsave(flags); 118 matroxfb_DAC_out(PMINFO 0x87, reg); 119 matroxfb_DAC_out(PMINFO 0x88, val >> 2); 120 matroxfb_DAC_out(PMINFO 0x87, reg + 1); 121 matroxfb_DAC_out(PMINFO 0x88, val & 3); 122 matroxfb_DAC_unlock_irqrestore(flags); 123} 124 125static void g450_compute_bwlevel(CPMINFO int *bl, int *wl) { 126 const int b = ACCESS_FBINFO(altout.tvo_params.brightness) + BLMIN; 127 const int c = ACCESS_FBINFO(altout.tvo_params.contrast); 128 129 *bl = max(b - c, BLMIN); 130 *wl = min(b + c, WLMAX); 131} 132 133static int g450_query_ctrl(void* md, struct v4l2_queryctrl *p) { 134 int i; 135 136 i = get_ctrl_id(p->id); 137 if (i >= 0) { 138 *p = g450_controls[i].desc; 139 return 0; 140 } 141 if (i == -ENOENT) { 142 static const struct v4l2_queryctrl disctrl = 143 { .flags = V4L2_CTRL_FLAG_DISABLED }; 144 145 i = p->id; 146 *p = disctrl; 147 p->id = i; 148 sprintf(p->name, "Ctrl #%08X", i); 149 return 0; 150 } 151 return -EINVAL; 152} 153 154static int g450_set_ctrl(void* md, struct v4l2_control *p) { 155 int i; 156 MINFO_FROM(md); 157 158 i = get_ctrl_id(p->id); 159 if (i < 0) return -EINVAL; 160 161 /* 162 * Check if changed. 163 */ 164 if (p->value == *get_ctrl_ptr(PMINFO i)) return 0; 165 166 /* 167 * Check limits. 168 */ 169 if (p->value > g450_controls[i].desc.maximum) return -EINVAL; 170 if (p->value < g450_controls[i].desc.minimum) return -EINVAL; 171 172 /* 173 * Store new value. 174 */ 175 *get_ctrl_ptr(PMINFO i) = p->value; 176 177 switch (p->id) { 178 case V4L2_CID_BRIGHTNESS: 179 case V4L2_CID_CONTRAST: 180 { 181 int blacklevel, whitelevel; 182 g450_compute_bwlevel(PMINFO &blacklevel, &whitelevel); 183 cve2_set_reg10(PMINFO 0x0e, blacklevel); 184 cve2_set_reg10(PMINFO 0x1e, whitelevel); 185 } 186 break; 187 case V4L2_CID_SATURATION: 188 cve2_set_reg(PMINFO 0x20, p->value); 189 cve2_set_reg(PMINFO 0x22, p->value); 190 break; 191 case V4L2_CID_HUE: 192 cve2_set_reg(PMINFO 0x25, p->value); 193 break; 194 case MATROXFB_CID_TESTOUT: 195 { 196 unsigned char val = cve2_get_reg (PMINFO 0x05); 197 if (p->value) val |= 0x02; 198 else val &= ~0x02; 199 cve2_set_reg(PMINFO 0x05, val); 200 } 201 break; 202 } 203 204 205 return 0; 206} 207 208static int g450_get_ctrl(void* md, struct v4l2_control *p) { 209 int i; 210 MINFO_FROM(md); 211 212 i = get_ctrl_id(p->id); 213 if (i < 0) return -EINVAL; 214 p->value = *get_ctrl_ptr(PMINFO i); 215 return 0; 216} 217 218struct output_desc { 219 unsigned int h_vis; 220 unsigned int h_f_porch; 221 unsigned int h_sync; 222 unsigned int h_b_porch; 223 unsigned long long int chromasc; 224 unsigned int burst; 225 unsigned int v_total; 226}; 227 228static void computeRegs(WPMINFO struct mavenregs* r, struct my_timming* mt, const struct output_desc* outd) { 229 u_int32_t chromasc; 230 u_int32_t hlen; 231 u_int32_t hsl; 232 u_int32_t hbp; 233 u_int32_t hfp; 234 u_int32_t hvis; 235 unsigned int pixclock; 236 unsigned long long piic; 237 int mnp; 238 int over; 239 240 r->regs[0x80] = 0x03; /* | 0x40 for SCART */ 241 242 hvis = ((mt->HDisplay << 1) + 3) & ~3; 243 244 if (hvis >= 2048) { 245 hvis = 2044; 246 } 247 248 piic = 1000000000ULL * hvis; 249 do_div(piic, outd->h_vis); 250 251 dprintk(KERN_DEBUG "Want %u kHz pixclock\n", (unsigned int)piic); 252 253 mnp = matroxfb_g450_setclk(PMINFO piic, M_VIDEO_PLL); 254 255 mt->mnp = mnp; 256 mt->pixclock = g450_mnp2f(PMINFO mnp); 257 258 dprintk(KERN_DEBUG "MNP=%08X\n", mnp); 259 260 pixclock = 1000000000U / mt->pixclock; 261 262 dprintk(KERN_DEBUG "Got %u ps pixclock\n", pixclock); 263 264 piic = outd->chromasc; 265 do_div(piic, mt->pixclock); 266 chromasc = piic; 267 268 dprintk(KERN_DEBUG "Chroma is %08X\n", chromasc); 269 270 r->regs[0] = piic >> 24; 271 r->regs[1] = piic >> 16; 272 r->regs[2] = piic >> 8; 273 r->regs[3] = piic >> 0; 274 hbp = (((outd->h_b_porch + pixclock) / pixclock)) & ~1; 275 hfp = (((outd->h_f_porch + pixclock) / pixclock)) & ~1; 276 hsl = (((outd->h_sync + pixclock) / pixclock)) & ~1; 277 hlen = hvis + hfp + hsl + hbp; 278 over = hlen & 0x0F; 279 280 dprintk(KERN_DEBUG "WL: vis=%u, hf=%u, hs=%u, hb=%u, total=%u\n", hvis, hfp, hsl, hbp, hlen); 281 282 if (over) { 283 hfp -= over; 284 hlen -= over; 285 if (over <= 2) { 286 } else if (over < 10) { 287 hfp += 4; 288 hlen += 4; 289 } else { 290 hfp += 16; 291 hlen += 16; 292 } 293 } 294 295 /* maybe cve2 has requirement 800 < hlen < 1184 */ 296 r->regs[0x08] = hsl; 297 r->regs[0x09] = (outd->burst + pixclock - 1) / pixclock; /* burst length */ 298 r->regs[0x0A] = hbp; 299 r->regs[0x2C] = hfp; 300 r->regs[0x31] = hvis / 8; 301 r->regs[0x32] = hvis & 7; 302 303 dprintk(KERN_DEBUG "PG: vis=%04X, hf=%02X, hs=%02X, hb=%02X, total=%04X\n", hvis, hfp, hsl, hbp, hlen); 304 305 r->regs[0x84] = 1; /* x sync point */ 306 r->regs[0x85] = 0; 307 hvis = hvis >> 1; 308 hlen = hlen >> 1; 309 310 dprintk(KERN_DEBUG "hlen=%u hvis=%u\n", hlen, hvis); 311 312 mt->interlaced = 1; 313 314 mt->HDisplay = hvis & ~7; 315 mt->HSyncStart = mt->HDisplay + 8; 316 mt->HSyncEnd = (hlen & ~7) - 8; 317 mt->HTotal = hlen; 318 319 { 320 int upper; 321 unsigned int vtotal; 322 unsigned int vsyncend; 323 unsigned int vdisplay; 324 325 vtotal = mt->VTotal; 326 vsyncend = mt->VSyncEnd; 327 vdisplay = mt->VDisplay; 328 if (vtotal < outd->v_total) { 329 unsigned int yovr = outd->v_total - vtotal; 330 331 vsyncend += yovr >> 1; 332 } else if (vtotal > outd->v_total) { 333 vdisplay = outd->v_total - 4; 334 vsyncend = outd->v_total; 335 } 336 upper = (outd->v_total - vsyncend) >> 1; /* in field lines */ 337 r->regs[0x17] = outd->v_total / 4; 338 r->regs[0x18] = outd->v_total & 3; 339 r->regs[0x33] = upper - 1; /* upper blanking */ 340 r->regs[0x82] = upper; /* y sync point */ 341 r->regs[0x83] = upper >> 8; 342 343 mt->VDisplay = vdisplay; 344 mt->VSyncStart = outd->v_total - 2; 345 mt->VSyncEnd = outd->v_total; 346 mt->VTotal = outd->v_total; 347 } 348} 349 350static void cve2_init_TVdata(int norm, struct mavenregs* data, const struct output_desc** outd) { 351 static const struct output_desc paloutd = { 352 .h_vis = 52148148, // ps 353 .h_f_porch = 1407407, // ps 354 .h_sync = 4666667, // ps 355 .h_b_porch = 5777778, // ps 356 .chromasc = 19042247534182ULL, // 4433618.750 Hz 357 .burst = 2518518, // ps 358 .v_total = 625, 359 }; 360 static const struct output_desc ntscoutd = { 361 .h_vis = 52888889, // ps 362 .h_f_porch = 1333333, // ps 363 .h_sync = 4666667, // ps 364 .h_b_porch = 4666667, // ps 365 .chromasc = 15374030659475ULL, // 3579545.454 Hz 366 .burst = 2418418, // ps 367 .v_total = 525, // lines 368 }; 369 370 static const struct mavenregs palregs = { { 371 0x2A, 0x09, 0x8A, 0xCB, /* 00: chroma subcarrier */ 372 0x00, 373 0x00, /* test */ 374 0xF9, /* modified by code (F9 written...) */ 375 0x00, /* ? not written */ 376 0x7E, /* 08 */ 377 0x44, /* 09 */ 378 0x9C, /* 0A */ 379 0x2E, /* 0B */ 380 0x21, /* 0C */ 381 0x00, /* ? not written */ 382// 0x3F, 0x03, /* 0E-0F */ 383 0x3C, 0x03, 384 0x3C, 0x03, /* 10-11 */ 385 0x1A, /* 12 */ 386 0x2A, /* 13 */ 387 0x1C, 0x3D, 0x14, /* 14-16 */ 388 0x9C, 0x01, /* 17-18 */ 389 0x00, /* 19 */ 390 0xFE, /* 1A */ 391 0x7E, /* 1B */ 392 0x60, /* 1C */ 393 0x05, /* 1D */ 394// 0x89, 0x03, /* 1E-1F */ 395 0xAD, 0x03, 396// 0x72, /* 20 */ 397 0xA5, 398 0x07, /* 21 */ 399// 0x72, /* 22 */ 400 0xA5, 401 0x00, /* 23 */ 402 0x00, /* 24 */ 403 0x00, /* 25 */ 404 0x08, /* 26 */ 405 0x04, /* 27 */ 406 0x00, /* 28 */ 407 0x1A, /* 29 */ 408 0x55, 0x01, /* 2A-2B */ 409 0x26, /* 2C */ 410 0x07, 0x7E, /* 2D-2E */ 411 0x02, 0x54, /* 2F-30 */ 412 0xB0, 0x00, /* 31-32 */ 413 0x14, /* 33 */ 414 0x49, /* 34 */ 415 0x00, /* 35 written multiple times */ 416 0x00, /* 36 not written */ 417 0xA3, /* 37 */ 418 0xC8, /* 38 */ 419 0x22, /* 39 */ 420 0x02, /* 3A */ 421 0x22, /* 3B */ 422 0x3F, 0x03, /* 3C-3D */ 423 0x00, /* 3E written multiple times */ 424 0x00, /* 3F not written */ 425 } }; 426 static struct mavenregs ntscregs = { { 427 0x21, 0xF0, 0x7C, 0x1F, /* 00: chroma subcarrier */ 428 0x00, 429 0x00, /* test */ 430 0xF9, /* modified by code (F9 written...) */ 431 0x00, /* ? not written */ 432 0x7E, /* 08 */ 433 0x43, /* 09 */ 434 0x7E, /* 0A */ 435 0x3D, /* 0B */ 436 0x00, /* 0C */ 437 0x00, /* ? not written */ 438 0x41, 0x00, /* 0E-0F */ 439 0x3C, 0x00, /* 10-11 */ 440 0x17, /* 12 */ 441 0x21, /* 13 */ 442 0x1B, 0x1B, 0x24, /* 14-16 */ 443 0x83, 0x01, /* 17-18 */ 444 0x00, /* 19 */ 445 0x0F, /* 1A */ 446 0x0F, /* 1B */ 447 0x60, /* 1C */ 448 0x05, /* 1D */ 449 //0x89, 0x02, /* 1E-1F */ 450 0xC0, 0x02, /* 1E-1F */ 451 //0x5F, /* 20 */ 452 0x9C, /* 20 */ 453 0x04, /* 21 */ 454 //0x5F, /* 22 */ 455 0x9C, /* 22 */ 456 0x01, /* 23 */ 457 0x02, /* 24 */ 458 0x00, /* 25 */ 459 0x0A, /* 26 */ 460 0x05, /* 27 */ 461 0x00, /* 28 */ 462 0x10, /* 29 */ 463 0xFF, 0x03, /* 2A-2B */ 464 0x24, /* 2C */ 465 0x0F, 0x78, /* 2D-2E */ 466 0x00, 0x00, /* 2F-30 */ 467 0xB2, 0x04, /* 31-32 */ 468 0x14, /* 33 */ 469 0x02, /* 34 */ 470 0x00, /* 35 written multiple times */ 471 0x00, /* 36 not written */ 472 0xA3, /* 37 */ 473 0xC8, /* 38 */ 474 0x15, /* 39 */ 475 0x05, /* 3A */ 476 0x3B, /* 3B */ 477 0x3C, 0x00, /* 3C-3D */ 478 0x00, /* 3E written multiple times */ 479 0x00, /* never written */ 480 } }; 481 482 if (norm == MATROXFB_OUTPUT_MODE_PAL) { 483 *data = palregs; 484 *outd = &paloutd; 485 } else { 486 *data = ntscregs; 487 *outd = &ntscoutd; 488 } 489 return; 490} 491 492#define LR(x) cve2_set_reg(PMINFO (x), m->regs[(x)]) 493static void cve2_init_TV(WPMINFO const struct mavenregs* m) { 494 int i; 495 496 LR(0x80); 497 LR(0x82); LR(0x83); 498 LR(0x84); LR(0x85); 499 500 cve2_set_reg(PMINFO 0x3E, 0x01); 501 502 for (i = 0; i < 0x3E; i++) { 503 LR(i); 504 } 505 cve2_set_reg(PMINFO 0x3E, 0x00); 506} 507 508static int matroxfb_g450_compute(void* md, struct my_timming* mt) { 509 MINFO_FROM(md); 510 511 dprintk(KERN_DEBUG "Computing, mode=%u\n", ACCESS_FBINFO(outputs[1]).mode); 512 513 if (mt->crtc == MATROXFB_SRC_CRTC2 && 514 ACCESS_FBINFO(outputs[1]).mode != MATROXFB_OUTPUT_MODE_MONITOR) { 515 const struct output_desc* outd; 516 517 cve2_init_TVdata(ACCESS_FBINFO(outputs[1]).mode, &ACCESS_FBINFO(hw).maven, &outd); 518 { 519 int blacklevel, whitelevel; 520 g450_compute_bwlevel(PMINFO &blacklevel, &whitelevel); 521 ACCESS_FBINFO(hw).maven.regs[0x0E] = blacklevel >> 2; 522 ACCESS_FBINFO(hw).maven.regs[0x0F] = blacklevel & 3; 523 ACCESS_FBINFO(hw).maven.regs[0x1E] = whitelevel >> 2; 524 ACCESS_FBINFO(hw).maven.regs[0x1F] = whitelevel & 3; 525 526 ACCESS_FBINFO(hw).maven.regs[0x20] = 527 ACCESS_FBINFO(hw).maven.regs[0x22] = ACCESS_FBINFO(altout.tvo_params.saturation); 528 529 ACCESS_FBINFO(hw).maven.regs[0x25] = ACCESS_FBINFO(altout.tvo_params.hue); 530 531 if (ACCESS_FBINFO(altout.tvo_params.testout)) { 532 ACCESS_FBINFO(hw).maven.regs[0x05] |= 0x02; 533 } 534 } 535 computeRegs(PMINFO &ACCESS_FBINFO(hw).maven, mt, outd); 536 } else if (mt->mnp < 0) { 537 /* We must program clocks before CRTC2, otherwise interlaced mode 538 startup may fail */ 539 mt->mnp = matroxfb_g450_setclk(PMINFO mt->pixclock, (mt->crtc == MATROXFB_SRC_CRTC1) ? M_PIXEL_PLL_C : M_VIDEO_PLL); 540 mt->pixclock = g450_mnp2f(PMINFO mt->mnp); 541 } 542 dprintk(KERN_DEBUG "Pixclock = %u\n", mt->pixclock); 543 return 0; 544} 545 546static int matroxfb_g450_program(void* md) { 547 MINFO_FROM(md); 548 549 if (ACCESS_FBINFO(outputs[1]).mode != MATROXFB_OUTPUT_MODE_MONITOR) { 550 cve2_init_TV(PMINFO &ACCESS_FBINFO(hw).maven); 551 } 552 return 0; 553} 554 555static int matroxfb_g450_verify_mode(void* md, u_int32_t arg) { 556 switch (arg) { 557 case MATROXFB_OUTPUT_MODE_PAL: 558 case MATROXFB_OUTPUT_MODE_NTSC: 559 case MATROXFB_OUTPUT_MODE_MONITOR: 560 return 0; 561 } 562 return -EINVAL; 563} 564 565static int g450_dvi_compute(void* md, struct my_timming* mt) { 566 MINFO_FROM(md); 567 568 if (mt->mnp < 0) { 569 mt->mnp = matroxfb_g450_setclk(PMINFO mt->pixclock, (mt->crtc == MATROXFB_SRC_CRTC1) ? M_PIXEL_PLL_C : M_VIDEO_PLL); 570 mt->pixclock = g450_mnp2f(PMINFO mt->mnp); 571 } 572 return 0; 573} 574 575static struct matrox_altout matroxfb_g450_altout = { 576 .name = "Secondary output", 577 .compute = matroxfb_g450_compute, 578 .program = matroxfb_g450_program, 579 .verifymode = matroxfb_g450_verify_mode, 580 .getqueryctrl = g450_query_ctrl, 581 .getctrl = g450_get_ctrl, 582 .setctrl = g450_set_ctrl, 583}; 584 585static struct matrox_altout matroxfb_g450_dvi = { 586 .name = "DVI output", 587 .compute = g450_dvi_compute, 588}; 589 590void matroxfb_g450_connect(WPMINFO2) { 591 if (ACCESS_FBINFO(devflags.g450dac)) { 592 down_write(&ACCESS_FBINFO(altout.lock)); 593 tvo_fill_defaults(PMINFO2); 594 ACCESS_FBINFO(outputs[1]).src = ACCESS_FBINFO(outputs[1]).default_src; 595 ACCESS_FBINFO(outputs[1]).data = MINFO; 596 ACCESS_FBINFO(outputs[1]).output = &matroxfb_g450_altout; 597 ACCESS_FBINFO(outputs[1]).mode = MATROXFB_OUTPUT_MODE_MONITOR; 598 ACCESS_FBINFO(outputs[2]).src = ACCESS_FBINFO(outputs[2]).default_src; 599 ACCESS_FBINFO(outputs[2]).data = MINFO; 600 ACCESS_FBINFO(outputs[2]).output = &matroxfb_g450_dvi; 601 ACCESS_FBINFO(outputs[2]).mode = MATROXFB_OUTPUT_MODE_MONITOR; 602 up_write(&ACCESS_FBINFO(altout.lock)); 603 } 604} 605 606void matroxfb_g450_shutdown(WPMINFO2) { 607 if (ACCESS_FBINFO(devflags.g450dac)) { 608 down_write(&ACCESS_FBINFO(altout.lock)); 609 ACCESS_FBINFO(outputs[1]).src = MATROXFB_SRC_NONE; 610 ACCESS_FBINFO(outputs[1]).output = NULL; 611 ACCESS_FBINFO(outputs[1]).data = NULL; 612 ACCESS_FBINFO(outputs[1]).mode = MATROXFB_OUTPUT_MODE_MONITOR; 613 ACCESS_FBINFO(outputs[2]).src = MATROXFB_SRC_NONE; 614 ACCESS_FBINFO(outputs[2]).output = NULL; 615 ACCESS_FBINFO(outputs[2]).data = NULL; 616 ACCESS_FBINFO(outputs[2]).mode = MATROXFB_OUTPUT_MODE_MONITOR; 617 up_write(&ACCESS_FBINFO(altout.lock)); 618 } 619} 620 621EXPORT_SYMBOL(matroxfb_g450_connect); 622EXPORT_SYMBOL(matroxfb_g450_shutdown); 623 624MODULE_AUTHOR("(c) 2000-2002 Petr Vandrovec <vandrove@vc.cvut.cz>"); 625MODULE_DESCRIPTION("Matrox G450/G550 output driver"); 626MODULE_LICENSE("GPL");