1 /* 2 * newport_con.c: Abscon for newport hardware 3 * 4 * (C) 1998 Thomas Bogendoerfer (tsbogend@alpha.franken.de) 5 * (C) 1999 Ulf Carlsson (ulfc@thepuffingruop.com) 6 * 7 * This driver is based on sgicons.c and cons_newport. 8 * 9 * Copyright (C) 1996 David S. Miller (dm@engr.sgi.com) 10 * Copyright (C) 1997 Miguel de Icaza (miguel@nuclecu.unam.mx) 11 */ 12 #include <linux/init.h> 13 #include <linux/kernel.h> 14 #include <linux/errno.h> 15 #include <linux/tty.h> 16 #include <linux/kd.h> 17 #include <linux/selection.h> 18 #include <linux/console.h> 19 #include <linux/vt_kern.h> 20 #include <linux/mm.h> 21 #include <linux/module.h> 22 #include <linux/slab.h> 23 24 #include <asm/io.h> 25 #include <asm/uaccess.h> 26 #include <asm/system.h> 27 #include <asm/page.h> 28 #include <asm/pgtable.h> 29 #include <video/newport.h> 30 31 #include <linux/linux_logo.h> 32 #include <linux/font.h> 33 34 35 extern unsigned long sgi_gfxaddr; 36 37 #define FONT_DATA ((unsigned char *)font_vga_8x16.data) 38 39 /* borrowed from fbcon.c */ 40 #define REFCOUNT(fd) (((int *)(fd))[-1]) 41 #define FNTSIZE(fd) (((int *)(fd))[-2]) 42 #define FNTCHARCNT(fd) (((int *)(fd))[-3]) 43 #define FONT_EXTRA_WORDS 3 44 45 static unsigned char *font_data[MAX_NR_CONSOLES]; 46 47 static struct newport_regs *npregs; 48 49 static int logo_active; 50 static int topscan; 51 static int xcurs_correction = 29; 52 static int newport_xsize; 53 static int newport_ysize; 54 55 static int newport_set_def_font(int unit, struct console_font *op); 56 57 #define BMASK(c) (c << 24) 58 59 #define RENDER(regs, cp) do { \ 60 (regs)->go.zpattern = BMASK((cp)[0x0]); (regs)->go.zpattern = BMASK((cp)[0x1]); \ 61 (regs)->go.zpattern = BMASK((cp)[0x2]); (regs)->go.zpattern = BMASK((cp)[0x3]); \ 62 (regs)->go.zpattern = BMASK((cp)[0x4]); (regs)->go.zpattern = BMASK((cp)[0x5]); \ 63 (regs)->go.zpattern = BMASK((cp)[0x6]); (regs)->go.zpattern = BMASK((cp)[0x7]); \ 64 (regs)->go.zpattern = BMASK((cp)[0x8]); (regs)->go.zpattern = BMASK((cp)[0x9]); \ 65 (regs)->go.zpattern = BMASK((cp)[0xa]); (regs)->go.zpattern = BMASK((cp)[0xb]); \ 66 (regs)->go.zpattern = BMASK((cp)[0xc]); (regs)->go.zpattern = BMASK((cp)[0xd]); \ 67 (regs)->go.zpattern = BMASK((cp)[0xe]); (regs)->go.zpattern = BMASK((cp)[0xf]); \ 68 } while(0) 69 70 #define TESTVAL 0xdeadbeef 71 #define XSTI_TO_FXSTART(val) (((val) & 0xffff) << 11) 72 73 static inline void newport_render_background(int xstart, int ystart, 74 int xend, int yend, int ci) 75 { 76 newport_wait(npregs); 77 npregs->set.wrmask = 0xffffffff; 78 npregs->set.drawmode0 = (NPORT_DMODE0_DRAW | NPORT_DMODE0_BLOCK | 79 NPORT_DMODE0_DOSETUP | NPORT_DMODE0_STOPX 80 | NPORT_DMODE0_STOPY); 81 npregs->set.colori = ci; 82 npregs->set.xystarti = 83 (xstart << 16) | ((ystart + topscan) & 0x3ff); 84 npregs->go.xyendi = 85 ((xend + 7) << 16) | ((yend + topscan + 15) & 0x3ff); 86 } 87 88 static inline void newport_init_cmap(void) 89 { 90 unsigned short i; 91 92 for (i = 0; i < 16; i++) { 93 newport_bfwait(npregs); 94 newport_cmap_setaddr(npregs, color_table[i]); 95 newport_cmap_setrgb(npregs, 96 default_red[i], 97 default_grn[i], default_blu[i]); 98 } 99 } 100 101 static void newport_show_logo(void) 102 { 103 #ifdef CONFIG_LOGO_SGI_CLUT224 104 const struct linux_logo *logo = fb_find_logo(8); 105 const unsigned char *clut = logo->clut; 106 const unsigned char *data = logo->data; 107 unsigned long i; 108 109 for (i = 0; i < logo->clutsize; i++) { 110 newport_bfwait(npregs); 111 newport_cmap_setaddr(npregs, i + 0x20); 112 newport_cmap_setrgb(npregs, clut[0], clut[1], clut[2]); 113 clut += 3; 114 } 115 116 newport_wait(npregs); 117 npregs->set.drawmode0 = (NPORT_DMODE0_DRAW | NPORT_DMODE0_BLOCK | 118 NPORT_DMODE0_CHOST); 119 120 npregs->set.xystarti = ((newport_xsize - logo->width) << 16) | (0); 121 npregs->set.xyendi = ((newport_xsize - 1) << 16); 122 newport_wait(npregs); 123 124 for (i = 0; i < logo->width*logo->height; i++) 125 npregs->go.hostrw0 = *data++ << 24; 126 #endif /* CONFIG_LOGO_SGI_CLUT224 */ 127 } 128 129 static inline void newport_clear_screen(int xstart, int ystart, int xend, 130 int yend, int ci) 131 { 132 if (logo_active) 133 return; 134 135 newport_wait(npregs); 136 npregs->set.wrmask = 0xffffffff; 137 npregs->set.drawmode0 = (NPORT_DMODE0_DRAW | NPORT_DMODE0_BLOCK | 138 NPORT_DMODE0_DOSETUP | NPORT_DMODE0_STOPX 139 | NPORT_DMODE0_STOPY); 140 npregs->set.colori = ci; 141 npregs->set.xystarti = (xstart << 16) | ystart; 142 npregs->go.xyendi = (xend << 16) | yend; 143 } 144 145 static inline void newport_clear_lines(int ystart, int yend, int ci) 146 { 147 ystart = ((ystart << 4) + topscan) & 0x3ff; 148 yend = ((yend << 4) + topscan + 15) & 0x3ff; 149 newport_clear_screen(0, ystart, 1280 + 63, yend, ci); 150 } 151 152 static void newport_reset(void) 153 { 154 unsigned short treg; 155 int i; 156 157 newport_wait(npregs); 158 treg = newport_vc2_get(npregs, VC2_IREG_CONTROL); 159 newport_vc2_set(npregs, VC2_IREG_CONTROL, 160 (treg | VC2_CTRL_EVIDEO)); 161 162 treg = newport_vc2_get(npregs, VC2_IREG_CENTRY); 163 newport_vc2_set(npregs, VC2_IREG_RADDR, treg); 164 npregs->set.dcbmode = (NPORT_DMODE_AVC2 | VC2_REGADDR_RAM | 165 NPORT_DMODE_W2 | VC2_PROTOCOL); 166 for (i = 0; i < 128; i++) { 167 newport_bfwait(npregs); 168 if (i == 92 || i == 94) 169 npregs->set.dcbdata0.byshort.s1 = 0xff00; 170 else 171 npregs->set.dcbdata0.byshort.s1 = 0x0000; 172 } 173 174 newport_init_cmap(); 175 176 /* turn off popup plane */ 177 npregs->set.dcbmode = (DCB_XMAP0 | R_DCB_XMAP9_PROTOCOL | 178 XM9_CRS_CONFIG | NPORT_DMODE_W1); 179 npregs->set.dcbdata0.bybytes.b3 &= ~XM9_PUPMODE; 180 npregs->set.dcbmode = (DCB_XMAP1 | R_DCB_XMAP9_PROTOCOL | 181 XM9_CRS_CONFIG | NPORT_DMODE_W1); 182 npregs->set.dcbdata0.bybytes.b3 &= ~XM9_PUPMODE; 183 184 topscan = 0; 185 npregs->cset.topscan = 0x3ff; 186 npregs->cset.xywin = (4096 << 16) | 4096; 187 188 /* Clear the screen. */ 189 newport_clear_screen(0, 0, 1280 + 63, 1024, 0); 190 } 191 192 /* 193 * calculate the actual screen size by reading 194 * the video timing out of the VC2 195 */ 196 static void newport_get_screensize(void) 197 { 198 int i, cols; 199 unsigned short ventry, treg; 200 unsigned short linetable[128]; /* should be enough */ 201 202 ventry = newport_vc2_get(npregs, VC2_IREG_VENTRY); 203 newport_vc2_set(npregs, VC2_IREG_RADDR, ventry); 204 npregs->set.dcbmode = (NPORT_DMODE_AVC2 | VC2_REGADDR_RAM | 205 NPORT_DMODE_W2 | VC2_PROTOCOL); 206 for (i = 0; i < 128; i++) { 207 newport_bfwait(npregs); 208 linetable[i] = npregs->set.dcbdata0.byshort.s1; 209 } 210 211 newport_xsize = newport_ysize = 0; 212 for (i = 0; linetable[i + 1] && (i < sizeof(linetable)); i += 2) { 213 cols = 0; 214 newport_vc2_set(npregs, VC2_IREG_RADDR, linetable[i]); 215 npregs->set.dcbmode = (NPORT_DMODE_AVC2 | VC2_REGADDR_RAM | 216 NPORT_DMODE_W2 | VC2_PROTOCOL); 217 do { 218 newport_bfwait(npregs); 219 treg = npregs->set.dcbdata0.byshort.s1; 220 if ((treg & 1) == 0) 221 cols += (treg >> 7) & 0xfe; 222 if ((treg & 0x80) == 0) { 223 newport_bfwait(npregs); 224 treg = npregs->set.dcbdata0.byshort.s1; 225 } 226 } while ((treg & 0x8000) == 0); 227 if (cols) { 228 if (cols > newport_xsize) 229 newport_xsize = cols; 230 newport_ysize += linetable[i + 1]; 231 } 232 } 233 printk("NG1: Screensize %dx%d\n", newport_xsize, newport_ysize); 234 } 235 236 static void newport_get_revisions(void) 237 { 238 unsigned int tmp; 239 unsigned int board_rev; 240 unsigned int rex3_rev; 241 unsigned int vc2_rev; 242 unsigned int cmap_rev; 243 unsigned int xmap9_rev; 244 unsigned int bt445_rev; 245 unsigned int bitplanes; 246 247 rex3_rev = npregs->cset.status & NPORT_STAT_VERS; 248 249 npregs->set.dcbmode = (DCB_CMAP0 | NCMAP_PROTOCOL | 250 NCMAP_REGADDR_RREG | NPORT_DMODE_W1); 251 tmp = npregs->set.dcbdata0.bybytes.b3; 252 cmap_rev = tmp & 7; 253 board_rev = (tmp >> 4) & 7; 254 bitplanes = ((board_rev > 1) && (tmp & 0x80)) ? 8 : 24; 255 256 npregs->set.dcbmode = (DCB_CMAP1 | NCMAP_PROTOCOL | 257 NCMAP_REGADDR_RREG | NPORT_DMODE_W1); 258 tmp = npregs->set.dcbdata0.bybytes.b3; 259 if ((tmp & 7) < cmap_rev) 260 cmap_rev = (tmp & 7); 261 262 vc2_rev = (newport_vc2_get(npregs, VC2_IREG_CONFIG) >> 5) & 7; 263 264 npregs->set.dcbmode = (DCB_XMAP0 | R_DCB_XMAP9_PROTOCOL | 265 XM9_CRS_REVISION | NPORT_DMODE_W1); 266 xmap9_rev = npregs->set.dcbdata0.bybytes.b3 & 7; 267 268 npregs->set.dcbmode = (DCB_BT445 | BT445_PROTOCOL | 269 BT445_CSR_ADDR_REG | NPORT_DMODE_W1); 270 npregs->set.dcbdata0.bybytes.b3 = BT445_REVISION_REG; 271 npregs->set.dcbmode = (DCB_BT445 | BT445_PROTOCOL | 272 BT445_CSR_REVISION | NPORT_DMODE_W1); 273 bt445_rev = (npregs->set.dcbdata0.bybytes.b3 >> 4) - 0x0a; 274 275 #define L(a) (char)('A'+(a)) 276 printk 277 ("NG1: Revision %d, %d bitplanes, REX3 revision %c, VC2 revision %c, xmap9 revision %c, cmap revision %c, bt445 revision %c\n", 278 board_rev, bitplanes, L(rex3_rev), L(vc2_rev), L(xmap9_rev), 279 L(cmap_rev ? (cmap_rev + 1) : 0), L(bt445_rev)); 280 #undef L 281 282 if (board_rev == 3) /* I don't know all affected revisions */ 283 xcurs_correction = 21; 284 } 285 286 /* Can't be __init, take_over_console may call it later */ 287 static const char *newport_startup(void) 288 { 289 int i; 290 291 if (!sgi_gfxaddr) 292 return NULL; 293 npregs = (struct newport_regs *) /* ioremap cannot fail */ 294 ioremap(sgi_gfxaddr, sizeof(struct newport_regs)); 295 npregs->cset.config = NPORT_CFG_GD0; 296 297 if (newport_wait(npregs)) 298 goto out_unmap; 299 300 npregs->set.xstarti = TESTVAL; 301 if (npregs->set._xstart.word != XSTI_TO_FXSTART(TESTVAL)) 302 goto out_unmap; 303 304 for (i = 0; i < MAX_NR_CONSOLES; i++) 305 font_data[i] = FONT_DATA; 306 307 newport_reset(); 308 newport_get_revisions(); 309 newport_get_screensize(); 310 311 return "SGI Newport"; 312 313 out_unmap: 314 iounmap((void *)npregs); 315 return NULL; 316 } 317 318 static void newport_init(struct vc_data *vc, int init) 319 { 320 vc->vc_cols = newport_xsize / 8; 321 vc->vc_rows = newport_ysize / 16; 322 vc->vc_can_do_color = 1; 323 } 324 325 static void newport_deinit(struct vc_data *c) 326 { 327 int i; 328 329 /* free memory used by user font */ 330 for (i = 0; i < MAX_NR_CONSOLES; i++) 331 newport_set_def_font(i, NULL); 332 } 333 334 static void newport_clear(struct vc_data *vc, int sy, int sx, int height, 335 int width) 336 { 337 int xend = ((sx + width) << 3) - 1; 338 int ystart = ((sy << 4) + topscan) & 0x3ff; 339 int yend = (((sy + height) << 4) + topscan - 1) & 0x3ff; 340 341 if (logo_active) 342 return; 343 344 if (ystart < yend) { 345 newport_clear_screen(sx << 3, ystart, xend, yend, 346 (vc->vc_color & 0xf0) >> 4); 347 } else { 348 newport_clear_screen(sx << 3, ystart, xend, 1023, 349 (vc->vc_color & 0xf0) >> 4); 350 newport_clear_screen(sx << 3, 0, xend, yend, 351 (vc->vc_color & 0xf0) >> 4); 352 } 353 } 354 355 static void newport_putc(struct vc_data *vc, int charattr, int ypos, 356 int xpos) 357 { 358 unsigned char *p; 359 360 p = &font_data[vc->vc_num][(charattr & 0xff) << 4]; 361 charattr = (charattr >> 8) & 0xff; 362 xpos <<= 3; 363 ypos <<= 4; 364 365 newport_render_background(xpos, ypos, xpos, ypos, 366 (charattr & 0xf0) >> 4); 367 368 /* Set the color and drawing mode. */ 369 newport_wait(npregs); 370 npregs->set.colori = charattr & 0xf; 371 npregs->set.drawmode0 = (NPORT_DMODE0_DRAW | NPORT_DMODE0_BLOCK | 372 NPORT_DMODE0_STOPX | NPORT_DMODE0_ZPENAB | 373 NPORT_DMODE0_L32); 374 375 /* Set coordinates for bitmap operation. */ 376 npregs->set.xystarti = (xpos << 16) | ((ypos + topscan) & 0x3ff); 377 npregs->set.xyendi = ((xpos + 7) << 16); 378 newport_wait(npregs); 379 380 /* Go, baby, go... */ 381 RENDER(npregs, p); 382 } 383 384 static void newport_putcs(struct vc_data *vc, const unsigned short *s, 385 int count, int ypos, int xpos) 386 { 387 int i; 388 int charattr; 389 unsigned char *p; 390 391 charattr = (scr_readw(s) >> 8) & 0xff; 392 393 xpos <<= 3; 394 ypos <<= 4; 395 396 if (!logo_active) 397 /* Clear the area behing the string */ 398 newport_render_background(xpos, ypos, 399 xpos + ((count - 1) << 3), ypos, 400 (charattr & 0xf0) >> 4); 401 402 newport_wait(npregs); 403 404 /* Set the color and drawing mode. */ 405 npregs->set.colori = charattr & 0xf; 406 npregs->set.drawmode0 = (NPORT_DMODE0_DRAW | NPORT_DMODE0_BLOCK | 407 NPORT_DMODE0_STOPX | NPORT_DMODE0_ZPENAB | 408 NPORT_DMODE0_L32); 409 410 for (i = 0; i < count; i++, xpos += 8) { 411 p = &font_data[vc->vc_num][(scr_readw(s++) & 0xff) << 4]; 412 413 newport_wait(npregs); 414 415 /* Set coordinates for bitmap operation. */ 416 npregs->set.xystarti = 417 (xpos << 16) | ((ypos + topscan) & 0x3ff); 418 npregs->set.xyendi = ((xpos + 7) << 16); 419 420 /* Go, baby, go... */ 421 RENDER(npregs, p); 422 } 423 } 424 425 static void newport_cursor(struct vc_data *vc, int mode) 426 { 427 unsigned short treg; 428 int xcurs, ycurs; 429 430 switch (mode) { 431 case CM_ERASE: 432 treg = newport_vc2_get(npregs, VC2_IREG_CONTROL); 433 newport_vc2_set(npregs, VC2_IREG_CONTROL, 434 (treg & ~(VC2_CTRL_ECDISP))); 435 break; 436 437 case CM_MOVE: 438 case CM_DRAW: 439 treg = newport_vc2_get(npregs, VC2_IREG_CONTROL); 440 newport_vc2_set(npregs, VC2_IREG_CONTROL, 441 (treg | VC2_CTRL_ECDISP)); 442 xcurs = (vc->vc_pos - vc->vc_visible_origin) / 2; 443 ycurs = ((xcurs / vc->vc_cols) << 4) + 31; 444 xcurs = ((xcurs % vc->vc_cols) << 3) + xcurs_correction; 445 newport_vc2_set(npregs, VC2_IREG_CURSX, xcurs); 446 newport_vc2_set(npregs, VC2_IREG_CURSY, ycurs); 447 } 448 } 449 450 static int newport_switch(struct vc_data *vc) 451 { 452 static int logo_drawn = 0; 453 454 topscan = 0; 455 npregs->cset.topscan = 0x3ff; 456 457 if (!logo_drawn) { 458 newport_show_logo(); 459 logo_drawn = 1; 460 logo_active = 1; 461 } 462 463 return 1; 464 } 465 466 static int newport_blank(struct vc_data *c, int blank, int mode_switch) 467 { 468 unsigned short treg; 469 470 if (blank == 0) { 471 /* unblank console */ 472 treg = newport_vc2_get(npregs, VC2_IREG_CONTROL); 473 newport_vc2_set(npregs, VC2_IREG_CONTROL, 474 (treg | VC2_CTRL_EDISP)); 475 } else { 476 /* blank console */ 477 treg = newport_vc2_get(npregs, VC2_IREG_CONTROL); 478 newport_vc2_set(npregs, VC2_IREG_CONTROL, 479 (treg & ~(VC2_CTRL_EDISP))); 480 } 481 return 1; 482 } 483 484 static int newport_set_font(int unit, struct console_font *op) 485 { 486 int w = op->width; 487 int h = op->height; 488 int size = h * op->charcount; 489 int i; 490 unsigned char *new_data, *data = op->data, *p; 491 492 /* ladis: when I grow up, there will be a day... and more sizes will 493 * be supported ;-) */ 494 if ((w != 8) || (h != 16) 495 || (op->charcount != 256 && op->charcount != 512)) 496 return -EINVAL; 497 498 if (!(new_data = kmalloc(FONT_EXTRA_WORDS * sizeof(int) + size, 499 GFP_USER))) return -ENOMEM; 500 501 new_data += FONT_EXTRA_WORDS * sizeof(int); 502 FNTSIZE(new_data) = size; 503 FNTCHARCNT(new_data) = op->charcount; 504 REFCOUNT(new_data) = 0; /* usage counter */ 505 506 p = new_data; 507 for (i = 0; i < op->charcount; i++) { 508 memcpy(p, data, h); 509 data += 32; 510 p += h; 511 } 512 513 /* check if font is already used by other console */ 514 for (i = 0; i < MAX_NR_CONSOLES; i++) { 515 if (font_data[i] != FONT_DATA 516 && FNTSIZE(font_data[i]) == size 517 && !memcmp(font_data[i], new_data, size)) { 518 kfree(new_data - FONT_EXTRA_WORDS * sizeof(int)); 519 /* current font is the same as the new one */ 520 if (i == unit) 521 return 0; 522 new_data = font_data[i]; 523 break; 524 } 525 } 526 /* old font is user font */ 527 if (font_data[unit] != FONT_DATA) { 528 if (--REFCOUNT(font_data[unit]) == 0) 529 kfree(font_data[unit] - 530 FONT_EXTRA_WORDS * sizeof(int)); 531 } 532 REFCOUNT(new_data)++; 533 font_data[unit] = new_data; 534 535 return 0; 536 } 537 538 static int newport_set_def_font(int unit, struct console_font *op) 539 { 540 if (font_data[unit] != FONT_DATA) { 541 if (--REFCOUNT(font_data[unit]) == 0) 542 kfree(font_data[unit] - 543 FONT_EXTRA_WORDS * sizeof(int)); 544 font_data[unit] = FONT_DATA; 545 } 546 547 return 0; 548 } 549 550 static int newport_font_default(struct vc_data *vc, struct console_font *op, char *name) 551 { 552 return newport_set_def_font(vc->vc_num, op); 553 } 554 555 static int newport_font_set(struct vc_data *vc, struct console_font *font, unsigned flags) 556 { 557 return newport_set_font(vc->vc_num, font); 558 } 559 560 static int newport_set_palette(struct vc_data *vc, unsigned char *table) 561 { 562 return -EINVAL; 563 } 564 565 static int newport_scrolldelta(struct vc_data *vc, int lines) 566 { 567 /* there is (nearly) no off-screen memory, so we can't scroll back */ 568 return 0; 569 } 570 571 static int newport_scroll(struct vc_data *vc, int t, int b, int dir, 572 int lines) 573 { 574 int count, x, y; 575 unsigned short *s, *d; 576 unsigned short chattr; 577 578 logo_active = 0; /* it's time to disable the logo now.. */ 579 580 if (t == 0 && b == vc->vc_rows) { 581 if (dir == SM_UP) { 582 topscan = (topscan + (lines << 4)) & 0x3ff; 583 newport_clear_lines(vc->vc_rows - lines, 584 vc->vc_rows - 1, 585 (vc->vc_color & 0xf0) >> 4); 586 } else { 587 topscan = (topscan + (-lines << 4)) & 0x3ff; 588 newport_clear_lines(0, lines - 1, 589 (vc->vc_color & 0xf0) >> 4); 590 } 591 npregs->cset.topscan = (topscan - 1) & 0x3ff; 592 return 0; 593 } 594 595 count = (b - t - lines) * vc->vc_cols; 596 if (dir == SM_UP) { 597 x = 0; 598 y = t; 599 s = (unsigned short *) (vc->vc_origin + 600 vc->vc_size_row * (t + lines)); 601 d = (unsigned short *) (vc->vc_origin + 602 vc->vc_size_row * t); 603 while (count--) { 604 chattr = scr_readw(s++); 605 if (chattr != scr_readw(d)) { 606 newport_putc(vc, chattr, y, x); 607 scr_writew(chattr, d); 608 } 609 d++; 610 if (++x == vc->vc_cols) { 611 x = 0; 612 y++; 613 } 614 } 615 d = (unsigned short *) (vc->vc_origin + 616 vc->vc_size_row * (b - lines)); 617 x = 0; 618 y = b - lines; 619 for (count = 0; count < (lines * vc->vc_cols); count++) { 620 if (scr_readw(d) != vc->vc_video_erase_char) { 621 newport_putc(vc, vc->vc_video_erase_char, 622 y, x); 623 scr_writew(vc->vc_video_erase_char, d); 624 } 625 d++; 626 if (++x == vc->vc_cols) { 627 x = 0; 628 y++; 629 } 630 } 631 } else { 632 x = vc->vc_cols - 1; 633 y = b - 1; 634 s = (unsigned short *) (vc->vc_origin + 635 vc->vc_size_row * (b - lines) - 2); 636 d = (unsigned short *) (vc->vc_origin + 637 vc->vc_size_row * b - 2); 638 while (count--) { 639 chattr = scr_readw(s--); 640 if (chattr != scr_readw(d)) { 641 newport_putc(vc, chattr, y, x); 642 scr_writew(chattr, d); 643 } 644 d--; 645 if (x-- == 0) { 646 x = vc->vc_cols - 1; 647 y--; 648 } 649 } 650 d = (unsigned short *) (vc->vc_origin + 651 vc->vc_size_row * t); 652 x = 0; 653 y = t; 654 for (count = 0; count < (lines * vc->vc_cols); count++) { 655 if (scr_readw(d) != vc->vc_video_erase_char) { 656 newport_putc(vc, vc->vc_video_erase_char, 657 y, x); 658 scr_writew(vc->vc_video_erase_char, d); 659 } 660 d++; 661 if (++x == vc->vc_cols) { 662 x = 0; 663 y++; 664 } 665 } 666 } 667 return 1; 668 } 669 670 static void newport_bmove(struct vc_data *vc, int sy, int sx, int dy, 671 int dx, int h, int w) 672 { 673 short xs, ys, xe, ye, xoffs, yoffs, tmp; 674 675 xs = sx << 3; 676 xe = ((sx + w) << 3) - 1; 677 /* 678 * as bmove is only used to move stuff around in the same line 679 * (h == 1), we don't care about wrap arounds caused by topscan != 0 680 */ 681 ys = ((sy << 4) + topscan) & 0x3ff; 682 ye = (((sy + h) << 4) - 1 + topscan) & 0x3ff; 683 xoffs = (dx - sx) << 3; 684 yoffs = (dy - sy) << 4; 685 if (xoffs > 0) { 686 /* move to the right, exchange starting points */ 687 tmp = xe; 688 xe = xs; 689 xs = tmp; 690 } 691 newport_wait(npregs); 692 npregs->set.drawmode0 = (NPORT_DMODE0_S2S | NPORT_DMODE0_BLOCK | 693 NPORT_DMODE0_DOSETUP | NPORT_DMODE0_STOPX 694 | NPORT_DMODE0_STOPY); 695 npregs->set.xystarti = (xs << 16) | ys; 696 npregs->set.xyendi = (xe << 16) | ye; 697 npregs->go.xymove = (xoffs << 16) | yoffs; 698 } 699 700 static int newport_dummy(struct vc_data *c) 701 { 702 return 0; 703 } 704 705 #define DUMMY (void *) newport_dummy 706 707 const struct consw newport_con = { 708 .owner = THIS_MODULE, 709 .con_startup = newport_startup, 710 .con_init = newport_init, 711 .con_deinit = newport_deinit, 712 .con_clear = newport_clear, 713 .con_putc = newport_putc, 714 .con_putcs = newport_putcs, 715 .con_cursor = newport_cursor, 716 .con_scroll = newport_scroll, 717 .con_bmove = newport_bmove, 718 .con_switch = newport_switch, 719 .con_blank = newport_blank, 720 .con_font_set = newport_font_set, 721 .con_font_default = newport_font_default, 722 .con_set_palette = newport_set_palette, 723 .con_scrolldelta = newport_scrolldelta, 724 .con_set_origin = DUMMY, 725 .con_save_screen = DUMMY 726 }; 727 728 #ifdef MODULE 729 static int __init newport_console_init(void) 730 { 731 return take_over_console(&newport_con, 0, MAX_NR_CONSOLES - 1, 1); 732 } 733 734 static void __exit newport_console_exit(void) 735 { 736 give_up_console(&newport_con); 737 iounmap((void *)npregs); 738 } 739 740 module_init(newport_console_init); 741 module_exit(newport_console_exit); 742 #endif 743 744 MODULE_LICENSE("GPL"); 745