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 (davem@davemloft.net) 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/kd.h> 16 #include <linux/selection.h> 17 #include <linux/console.h> 18 #include <linux/vt_kern.h> 19 #include <linux/mm.h> 20 #include <linux/module.h> 21 #include <linux/slab.h> 22 23 #include <asm/io.h> 24 #include <asm/uaccess.h> 25 #include <asm/system.h> 26 #include <asm/page.h> 27 #include <asm/pgtable.h> 28 #include <asm/gio_device.h> 29 30 #include <video/newport.h> 31 32 #include <linux/linux_logo.h> 33 #include <linux/font.h> 34 35 #define FONT_DATA ((unsigned char *)font_vga_8x16.data) 36 37 /* borrowed from fbcon.c */ 38 #define REFCOUNT(fd) (((int *)(fd))[-1]) 39 #define FNTSIZE(fd) (((int *)(fd))[-2]) 40 #define FNTCHARCNT(fd) (((int *)(fd))[-3]) 41 #define FONT_EXTRA_WORDS 3 42 43 static unsigned char *font_data[MAX_NR_CONSOLES]; 44 45 static struct newport_regs *npregs; 46 47 static int logo_active; 48 static int topscan; 49 static int xcurs_correction = 29; 50 static int newport_xsize; 51 static int newport_ysize; 52 static int newport_has_init; 53 54 static int newport_set_def_font(int unit, struct console_font *op); 55 56 #define BMASK(c) (c << 24) 57 58 #define RENDER(regs, cp) do { \ 59 (regs)->go.zpattern = BMASK((cp)[0x0]); (regs)->go.zpattern = BMASK((cp)[0x1]); \ 60 (regs)->go.zpattern = BMASK((cp)[0x2]); (regs)->go.zpattern = BMASK((cp)[0x3]); \ 61 (regs)->go.zpattern = BMASK((cp)[0x4]); (regs)->go.zpattern = BMASK((cp)[0x5]); \ 62 (regs)->go.zpattern = BMASK((cp)[0x6]); (regs)->go.zpattern = BMASK((cp)[0x7]); \ 63 (regs)->go.zpattern = BMASK((cp)[0x8]); (regs)->go.zpattern = BMASK((cp)[0x9]); \ 64 (regs)->go.zpattern = BMASK((cp)[0xa]); (regs)->go.zpattern = BMASK((cp)[0xb]); \ 65 (regs)->go.zpattern = BMASK((cp)[0xc]); (regs)->go.zpattern = BMASK((cp)[0xd]); \ 66 (regs)->go.zpattern = BMASK((cp)[0xe]); (regs)->go.zpattern = BMASK((cp)[0xf]); \ 67 } while(0) 68 69 #define TESTVAL 0xdeadbeef 70 #define XSTI_TO_FXSTART(val) (((val) & 0xffff) << 11) 71 72 static inline void newport_render_background(int xstart, int ystart, 73 int xend, int yend, int ci) 74 { 75 newport_wait(npregs); 76 npregs->set.wrmask = 0xffffffff; 77 npregs->set.drawmode0 = (NPORT_DMODE0_DRAW | NPORT_DMODE0_BLOCK | 78 NPORT_DMODE0_DOSETUP | NPORT_DMODE0_STOPX 79 | NPORT_DMODE0_STOPY); 80 npregs->set.colori = ci; 81 npregs->set.xystarti = 82 (xstart << 16) | ((ystart + topscan) & 0x3ff); 83 npregs->go.xyendi = 84 ((xend + 7) << 16) | ((yend + topscan + 15) & 0x3ff); 85 } 86 87 static inline void newport_init_cmap(void) 88 { 89 unsigned short i; 90 91 for (i = 0; i < 16; i++) { 92 newport_bfwait(npregs); 93 newport_cmap_setaddr(npregs, color_table[i]); 94 newport_cmap_setrgb(npregs, 95 default_red[i], 96 default_grn[i], default_blu[i]); 97 } 98 } 99 100 static const struct linux_logo *newport_show_logo(void) 101 { 102 #ifdef CONFIG_LOGO_SGI_CLUT224 103 const struct linux_logo *logo = fb_find_logo(8); 104 const unsigned char *clut; 105 const unsigned char *data; 106 unsigned long i; 107 108 if (!logo) 109 return NULL; 110 clut = logo->clut; 111 data = logo->data; 112 113 for (i = 0; i < logo->clutsize; i++) { 114 newport_bfwait(npregs); 115 newport_cmap_setaddr(npregs, i + 0x20); 116 newport_cmap_setrgb(npregs, clut[0], clut[1], clut[2]); 117 clut += 3; 118 } 119 120 newport_wait(npregs); 121 npregs->set.drawmode0 = (NPORT_DMODE0_DRAW | NPORT_DMODE0_BLOCK | 122 NPORT_DMODE0_CHOST); 123 124 npregs->set.xystarti = ((newport_xsize - logo->width) << 16) | (0); 125 npregs->set.xyendi = ((newport_xsize - 1) << 16); 126 newport_wait(npregs); 127 128 for (i = 0; i < logo->width*logo->height; i++) 129 npregs->go.hostrw0 = *data++ << 24; 130 131 return logo; 132 #endif /* CONFIG_LOGO_SGI_CLUT224 */ 133 } 134 135 static inline void newport_clear_screen(int xstart, int ystart, int xend, 136 int yend, int ci) 137 { 138 if (logo_active) 139 return; 140 141 newport_wait(npregs); 142 npregs->set.wrmask = 0xffffffff; 143 npregs->set.drawmode0 = (NPORT_DMODE0_DRAW | NPORT_DMODE0_BLOCK | 144 NPORT_DMODE0_DOSETUP | NPORT_DMODE0_STOPX 145 | NPORT_DMODE0_STOPY); 146 npregs->set.colori = ci; 147 npregs->set.xystarti = (xstart << 16) | ystart; 148 npregs->go.xyendi = (xend << 16) | yend; 149 } 150 151 static inline void newport_clear_lines(int ystart, int yend, int ci) 152 { 153 ystart = ((ystart << 4) + topscan) & 0x3ff; 154 yend = ((yend << 4) + topscan + 15) & 0x3ff; 155 newport_clear_screen(0, ystart, 1280 + 63, yend, ci); 156 } 157 158 static void newport_reset(void) 159 { 160 unsigned short treg; 161 int i; 162 163 newport_wait(npregs); 164 treg = newport_vc2_get(npregs, VC2_IREG_CONTROL); 165 newport_vc2_set(npregs, VC2_IREG_CONTROL, 166 (treg | VC2_CTRL_EVIDEO)); 167 168 treg = newport_vc2_get(npregs, VC2_IREG_CENTRY); 169 newport_vc2_set(npregs, VC2_IREG_RADDR, treg); 170 npregs->set.dcbmode = (NPORT_DMODE_AVC2 | VC2_REGADDR_RAM | 171 NPORT_DMODE_W2 | VC2_PROTOCOL); 172 for (i = 0; i < 128; i++) { 173 newport_bfwait(npregs); 174 if (i == 92 || i == 94) 175 npregs->set.dcbdata0.byshort.s1 = 0xff00; 176 else 177 npregs->set.dcbdata0.byshort.s1 = 0x0000; 178 } 179 180 newport_init_cmap(); 181 182 /* turn off popup plane */ 183 npregs->set.dcbmode = (DCB_XMAP0 | R_DCB_XMAP9_PROTOCOL | 184 XM9_CRS_CONFIG | NPORT_DMODE_W1); 185 npregs->set.dcbdata0.bybytes.b3 &= ~XM9_PUPMODE; 186 npregs->set.dcbmode = (DCB_XMAP1 | R_DCB_XMAP9_PROTOCOL | 187 XM9_CRS_CONFIG | NPORT_DMODE_W1); 188 npregs->set.dcbdata0.bybytes.b3 &= ~XM9_PUPMODE; 189 190 topscan = 0; 191 npregs->cset.topscan = 0x3ff; 192 npregs->cset.xywin = (4096 << 16) | 4096; 193 194 /* Clear the screen. */ 195 newport_clear_screen(0, 0, 1280 + 63, 1024, 0); 196 } 197 198 /* 199 * calculate the actual screen size by reading 200 * the video timing out of the VC2 201 */ 202 static void newport_get_screensize(void) 203 { 204 int i, cols; 205 unsigned short ventry, treg; 206 unsigned short linetable[128]; /* should be enough */ 207 208 ventry = newport_vc2_get(npregs, VC2_IREG_VENTRY); 209 newport_vc2_set(npregs, VC2_IREG_RADDR, ventry); 210 npregs->set.dcbmode = (NPORT_DMODE_AVC2 | VC2_REGADDR_RAM | 211 NPORT_DMODE_W2 | VC2_PROTOCOL); 212 for (i = 0; i < 128; i++) { 213 newport_bfwait(npregs); 214 linetable[i] = npregs->set.dcbdata0.byshort.s1; 215 } 216 217 newport_xsize = newport_ysize = 0; 218 for (i = 0; i < ARRAY_SIZE(linetable) - 1 && linetable[i + 1]; i += 2) { 219 cols = 0; 220 newport_vc2_set(npregs, VC2_IREG_RADDR, linetable[i]); 221 npregs->set.dcbmode = (NPORT_DMODE_AVC2 | VC2_REGADDR_RAM | 222 NPORT_DMODE_W2 | VC2_PROTOCOL); 223 do { 224 newport_bfwait(npregs); 225 treg = npregs->set.dcbdata0.byshort.s1; 226 if ((treg & 1) == 0) 227 cols += (treg >> 7) & 0xfe; 228 if ((treg & 0x80) == 0) { 229 newport_bfwait(npregs); 230 treg = npregs->set.dcbdata0.byshort.s1; 231 } 232 } while ((treg & 0x8000) == 0); 233 if (cols) { 234 if (cols > newport_xsize) 235 newport_xsize = cols; 236 newport_ysize += linetable[i + 1]; 237 } 238 } 239 printk("NG1: Screensize %dx%d\n", newport_xsize, newport_ysize); 240 } 241 242 static void newport_get_revisions(void) 243 { 244 unsigned int tmp; 245 unsigned int board_rev; 246 unsigned int rex3_rev; 247 unsigned int vc2_rev; 248 unsigned int cmap_rev; 249 unsigned int xmap9_rev; 250 unsigned int bt445_rev; 251 unsigned int bitplanes; 252 253 rex3_rev = npregs->cset.status & NPORT_STAT_VERS; 254 255 npregs->set.dcbmode = (DCB_CMAP0 | NCMAP_PROTOCOL | 256 NCMAP_REGADDR_RREG | NPORT_DMODE_W1); 257 tmp = npregs->set.dcbdata0.bybytes.b3; 258 cmap_rev = tmp & 7; 259 board_rev = (tmp >> 4) & 7; 260 bitplanes = ((board_rev > 1) && (tmp & 0x80)) ? 8 : 24; 261 262 npregs->set.dcbmode = (DCB_CMAP1 | NCMAP_PROTOCOL | 263 NCMAP_REGADDR_RREG | NPORT_DMODE_W1); 264 tmp = npregs->set.dcbdata0.bybytes.b3; 265 if ((tmp & 7) < cmap_rev) 266 cmap_rev = (tmp & 7); 267 268 vc2_rev = (newport_vc2_get(npregs, VC2_IREG_CONFIG) >> 5) & 7; 269 270 npregs->set.dcbmode = (DCB_XMAP0 | R_DCB_XMAP9_PROTOCOL | 271 XM9_CRS_REVISION | NPORT_DMODE_W1); 272 xmap9_rev = npregs->set.dcbdata0.bybytes.b3 & 7; 273 274 npregs->set.dcbmode = (DCB_BT445 | BT445_PROTOCOL | 275 BT445_CSR_ADDR_REG | NPORT_DMODE_W1); 276 npregs->set.dcbdata0.bybytes.b3 = BT445_REVISION_REG; 277 npregs->set.dcbmode = (DCB_BT445 | BT445_PROTOCOL | 278 BT445_CSR_REVISION | NPORT_DMODE_W1); 279 bt445_rev = (npregs->set.dcbdata0.bybytes.b3 >> 4) - 0x0a; 280 281 #define L(a) (char)('A'+(a)) 282 printk 283 ("NG1: Revision %d, %d bitplanes, REX3 revision %c, VC2 revision %c, xmap9 revision %c, cmap revision %c, bt445 revision %c\n", 284 board_rev, bitplanes, L(rex3_rev), L(vc2_rev), L(xmap9_rev), 285 L(cmap_rev ? (cmap_rev + 1) : 0), L(bt445_rev)); 286 #undef L 287 288 if (board_rev == 3) /* I don't know all affected revisions */ 289 xcurs_correction = 21; 290 } 291 292 static void newport_exit(void) 293 { 294 int i; 295 296 /* free memory used by user font */ 297 for (i = 0; i < MAX_NR_CONSOLES; i++) 298 newport_set_def_font(i, NULL); 299 } 300 301 /* Can't be __init, take_over_console may call it later */ 302 static const char *newport_startup(void) 303 { 304 int i; 305 306 npregs->cset.config = NPORT_CFG_GD0; 307 308 if (newport_wait(npregs)) 309 goto out_unmap; 310 311 npregs->set.xstarti = TESTVAL; 312 if (npregs->set._xstart.word != XSTI_TO_FXSTART(TESTVAL)) 313 goto out_unmap; 314 315 for (i = 0; i < MAX_NR_CONSOLES; i++) 316 font_data[i] = FONT_DATA; 317 318 newport_reset(); 319 newport_get_revisions(); 320 newport_get_screensize(); 321 newport_has_init = 1; 322 323 return "SGI Newport"; 324 325 out_unmap: 326 return NULL; 327 } 328 329 static void newport_init(struct vc_data *vc, int init) 330 { 331 vc->vc_cols = newport_xsize / 8; 332 vc->vc_rows = newport_ysize / 16; 333 vc->vc_can_do_color = 1; 334 } 335 336 static void newport_deinit(struct vc_data *c) 337 { 338 if (!con_is_bound(&newport_con) && newport_has_init) { 339 newport_exit(); 340 newport_has_init = 0; 341 } 342 } 343 344 static void newport_clear(struct vc_data *vc, int sy, int sx, int height, 345 int width) 346 { 347 int xend = ((sx + width) << 3) - 1; 348 int ystart = ((sy << 4) + topscan) & 0x3ff; 349 int yend = (((sy + height) << 4) + topscan - 1) & 0x3ff; 350 351 if (logo_active) 352 return; 353 354 if (ystart < yend) { 355 newport_clear_screen(sx << 3, ystart, xend, yend, 356 (vc->vc_color & 0xf0) >> 4); 357 } else { 358 newport_clear_screen(sx << 3, ystart, xend, 1023, 359 (vc->vc_color & 0xf0) >> 4); 360 newport_clear_screen(sx << 3, 0, xend, yend, 361 (vc->vc_color & 0xf0) >> 4); 362 } 363 } 364 365 static void newport_putc(struct vc_data *vc, int charattr, int ypos, 366 int xpos) 367 { 368 unsigned char *p; 369 370 p = &font_data[vc->vc_num][(charattr & 0xff) << 4]; 371 charattr = (charattr >> 8) & 0xff; 372 xpos <<= 3; 373 ypos <<= 4; 374 375 newport_render_background(xpos, ypos, xpos, ypos, 376 (charattr & 0xf0) >> 4); 377 378 /* Set the color and drawing mode. */ 379 newport_wait(npregs); 380 npregs->set.colori = charattr & 0xf; 381 npregs->set.drawmode0 = (NPORT_DMODE0_DRAW | NPORT_DMODE0_BLOCK | 382 NPORT_DMODE0_STOPX | NPORT_DMODE0_ZPENAB | 383 NPORT_DMODE0_L32); 384 385 /* Set coordinates for bitmap operation. */ 386 npregs->set.xystarti = (xpos << 16) | ((ypos + topscan) & 0x3ff); 387 npregs->set.xyendi = ((xpos + 7) << 16); 388 newport_wait(npregs); 389 390 /* Go, baby, go... */ 391 RENDER(npregs, p); 392 } 393 394 static void newport_putcs(struct vc_data *vc, const unsigned short *s, 395 int count, int ypos, int xpos) 396 { 397 int i; 398 int charattr; 399 unsigned char *p; 400 401 charattr = (scr_readw(s) >> 8) & 0xff; 402 403 xpos <<= 3; 404 ypos <<= 4; 405 406 if (!logo_active) 407 /* Clear the area behing the string */ 408 newport_render_background(xpos, ypos, 409 xpos + ((count - 1) << 3), ypos, 410 (charattr & 0xf0) >> 4); 411 412 newport_wait(npregs); 413 414 /* Set the color and drawing mode. */ 415 npregs->set.colori = charattr & 0xf; 416 npregs->set.drawmode0 = (NPORT_DMODE0_DRAW | NPORT_DMODE0_BLOCK | 417 NPORT_DMODE0_STOPX | NPORT_DMODE0_ZPENAB | 418 NPORT_DMODE0_L32); 419 420 for (i = 0; i < count; i++, xpos += 8) { 421 p = &font_data[vc->vc_num][(scr_readw(s++) & 0xff) << 4]; 422 423 newport_wait(npregs); 424 425 /* Set coordinates for bitmap operation. */ 426 npregs->set.xystarti = 427 (xpos << 16) | ((ypos + topscan) & 0x3ff); 428 npregs->set.xyendi = ((xpos + 7) << 16); 429 430 /* Go, baby, go... */ 431 RENDER(npregs, p); 432 } 433 } 434 435 static void newport_cursor(struct vc_data *vc, int mode) 436 { 437 unsigned short treg; 438 int xcurs, ycurs; 439 440 switch (mode) { 441 case CM_ERASE: 442 treg = newport_vc2_get(npregs, VC2_IREG_CONTROL); 443 newport_vc2_set(npregs, VC2_IREG_CONTROL, 444 (treg & ~(VC2_CTRL_ECDISP))); 445 break; 446 447 case CM_MOVE: 448 case CM_DRAW: 449 treg = newport_vc2_get(npregs, VC2_IREG_CONTROL); 450 newport_vc2_set(npregs, VC2_IREG_CONTROL, 451 (treg | VC2_CTRL_ECDISP)); 452 xcurs = (vc->vc_pos - vc->vc_visible_origin) / 2; 453 ycurs = ((xcurs / vc->vc_cols) << 4) + 31; 454 xcurs = ((xcurs % vc->vc_cols) << 3) + xcurs_correction; 455 newport_vc2_set(npregs, VC2_IREG_CURSX, xcurs); 456 newport_vc2_set(npregs, VC2_IREG_CURSY, ycurs); 457 } 458 } 459 460 static int newport_switch(struct vc_data *vc) 461 { 462 static int logo_drawn = 0; 463 464 topscan = 0; 465 npregs->cset.topscan = 0x3ff; 466 467 if (!logo_drawn) { 468 if (newport_show_logo()) { 469 logo_drawn = 1; 470 logo_active = 1; 471 } 472 } 473 474 return 1; 475 } 476 477 static int newport_blank(struct vc_data *c, int blank, int mode_switch) 478 { 479 unsigned short treg; 480 481 if (blank == 0) { 482 /* unblank console */ 483 treg = newport_vc2_get(npregs, VC2_IREG_CONTROL); 484 newport_vc2_set(npregs, VC2_IREG_CONTROL, 485 (treg | VC2_CTRL_EDISP)); 486 } else { 487 /* blank console */ 488 treg = newport_vc2_get(npregs, VC2_IREG_CONTROL); 489 newport_vc2_set(npregs, VC2_IREG_CONTROL, 490 (treg & ~(VC2_CTRL_EDISP))); 491 } 492 return 1; 493 } 494 495 static int newport_set_font(int unit, struct console_font *op) 496 { 497 int w = op->width; 498 int h = op->height; 499 int size = h * op->charcount; 500 int i; 501 unsigned char *new_data, *data = op->data, *p; 502 503 /* ladis: when I grow up, there will be a day... and more sizes will 504 * be supported ;-) */ 505 if ((w != 8) || (h != 16) 506 || (op->charcount != 256 && op->charcount != 512)) 507 return -EINVAL; 508 509 if (!(new_data = kmalloc(FONT_EXTRA_WORDS * sizeof(int) + size, 510 GFP_USER))) return -ENOMEM; 511 512 new_data += FONT_EXTRA_WORDS * sizeof(int); 513 FNTSIZE(new_data) = size; 514 FNTCHARCNT(new_data) = op->charcount; 515 REFCOUNT(new_data) = 0; /* usage counter */ 516 517 p = new_data; 518 for (i = 0; i < op->charcount; i++) { 519 memcpy(p, data, h); 520 data += 32; 521 p += h; 522 } 523 524 /* check if font is already used by other console */ 525 for (i = 0; i < MAX_NR_CONSOLES; i++) { 526 if (font_data[i] != FONT_DATA 527 && FNTSIZE(font_data[i]) == size 528 && !memcmp(font_data[i], new_data, size)) { 529 kfree(new_data - FONT_EXTRA_WORDS * sizeof(int)); 530 /* current font is the same as the new one */ 531 if (i == unit) 532 return 0; 533 new_data = font_data[i]; 534 break; 535 } 536 } 537 /* old font is user font */ 538 if (font_data[unit] != FONT_DATA) { 539 if (--REFCOUNT(font_data[unit]) == 0) 540 kfree(font_data[unit] - 541 FONT_EXTRA_WORDS * sizeof(int)); 542 } 543 REFCOUNT(new_data)++; 544 font_data[unit] = new_data; 545 546 return 0; 547 } 548 549 static int newport_set_def_font(int unit, struct console_font *op) 550 { 551 if (font_data[unit] != FONT_DATA) { 552 if (--REFCOUNT(font_data[unit]) == 0) 553 kfree(font_data[unit] - 554 FONT_EXTRA_WORDS * sizeof(int)); 555 font_data[unit] = FONT_DATA; 556 } 557 558 return 0; 559 } 560 561 static int newport_font_default(struct vc_data *vc, struct console_font *op, char *name) 562 { 563 return newport_set_def_font(vc->vc_num, op); 564 } 565 566 static int newport_font_set(struct vc_data *vc, struct console_font *font, unsigned flags) 567 { 568 return newport_set_font(vc->vc_num, font); 569 } 570 571 static int newport_set_palette(struct vc_data *vc, unsigned char *table) 572 { 573 return -EINVAL; 574 } 575 576 static int newport_scrolldelta(struct vc_data *vc, int lines) 577 { 578 /* there is (nearly) no off-screen memory, so we can't scroll back */ 579 return 0; 580 } 581 582 static int newport_scroll(struct vc_data *vc, int t, int b, int dir, 583 int lines) 584 { 585 int count, x, y; 586 unsigned short *s, *d; 587 unsigned short chattr; 588 589 logo_active = 0; /* it's time to disable the logo now.. */ 590 591 if (t == 0 && b == vc->vc_rows) { 592 if (dir == SM_UP) { 593 topscan = (topscan + (lines << 4)) & 0x3ff; 594 newport_clear_lines(vc->vc_rows - lines, 595 vc->vc_rows - 1, 596 (vc->vc_color & 0xf0) >> 4); 597 } else { 598 topscan = (topscan + (-lines << 4)) & 0x3ff; 599 newport_clear_lines(0, lines - 1, 600 (vc->vc_color & 0xf0) >> 4); 601 } 602 npregs->cset.topscan = (topscan - 1) & 0x3ff; 603 return 0; 604 } 605 606 count = (b - t - lines) * vc->vc_cols; 607 if (dir == SM_UP) { 608 x = 0; 609 y = t; 610 s = (unsigned short *) (vc->vc_origin + 611 vc->vc_size_row * (t + lines)); 612 d = (unsigned short *) (vc->vc_origin + 613 vc->vc_size_row * t); 614 while (count--) { 615 chattr = scr_readw(s++); 616 if (chattr != scr_readw(d)) { 617 newport_putc(vc, chattr, y, x); 618 scr_writew(chattr, d); 619 } 620 d++; 621 if (++x == vc->vc_cols) { 622 x = 0; 623 y++; 624 } 625 } 626 d = (unsigned short *) (vc->vc_origin + 627 vc->vc_size_row * (b - lines)); 628 x = 0; 629 y = b - lines; 630 for (count = 0; count < (lines * vc->vc_cols); count++) { 631 if (scr_readw(d) != vc->vc_video_erase_char) { 632 newport_putc(vc, vc->vc_video_erase_char, 633 y, x); 634 scr_writew(vc->vc_video_erase_char, d); 635 } 636 d++; 637 if (++x == vc->vc_cols) { 638 x = 0; 639 y++; 640 } 641 } 642 } else { 643 x = vc->vc_cols - 1; 644 y = b - 1; 645 s = (unsigned short *) (vc->vc_origin + 646 vc->vc_size_row * (b - lines) - 2); 647 d = (unsigned short *) (vc->vc_origin + 648 vc->vc_size_row * b - 2); 649 while (count--) { 650 chattr = scr_readw(s--); 651 if (chattr != scr_readw(d)) { 652 newport_putc(vc, chattr, y, x); 653 scr_writew(chattr, d); 654 } 655 d--; 656 if (x-- == 0) { 657 x = vc->vc_cols - 1; 658 y--; 659 } 660 } 661 d = (unsigned short *) (vc->vc_origin + 662 vc->vc_size_row * t); 663 x = 0; 664 y = t; 665 for (count = 0; count < (lines * vc->vc_cols); count++) { 666 if (scr_readw(d) != vc->vc_video_erase_char) { 667 newport_putc(vc, vc->vc_video_erase_char, 668 y, x); 669 scr_writew(vc->vc_video_erase_char, d); 670 } 671 d++; 672 if (++x == vc->vc_cols) { 673 x = 0; 674 y++; 675 } 676 } 677 } 678 return 1; 679 } 680 681 static void newport_bmove(struct vc_data *vc, int sy, int sx, int dy, 682 int dx, int h, int w) 683 { 684 short xs, ys, xe, ye, xoffs, yoffs, tmp; 685 686 xs = sx << 3; 687 xe = ((sx + w) << 3) - 1; 688 /* 689 * as bmove is only used to move stuff around in the same line 690 * (h == 1), we don't care about wrap arounds caused by topscan != 0 691 */ 692 ys = ((sy << 4) + topscan) & 0x3ff; 693 ye = (((sy + h) << 4) - 1 + topscan) & 0x3ff; 694 xoffs = (dx - sx) << 3; 695 yoffs = (dy - sy) << 4; 696 if (xoffs > 0) { 697 /* move to the right, exchange starting points */ 698 tmp = xe; 699 xe = xs; 700 xs = tmp; 701 } 702 newport_wait(npregs); 703 npregs->set.drawmode0 = (NPORT_DMODE0_S2S | NPORT_DMODE0_BLOCK | 704 NPORT_DMODE0_DOSETUP | NPORT_DMODE0_STOPX 705 | NPORT_DMODE0_STOPY); 706 npregs->set.xystarti = (xs << 16) | ys; 707 npregs->set.xyendi = (xe << 16) | ye; 708 npregs->go.xymove = (xoffs << 16) | yoffs; 709 } 710 711 static int newport_dummy(struct vc_data *c) 712 { 713 return 0; 714 } 715 716 #define DUMMY (void *) newport_dummy 717 718 const struct consw newport_con = { 719 .owner = THIS_MODULE, 720 .con_startup = newport_startup, 721 .con_init = newport_init, 722 .con_deinit = newport_deinit, 723 .con_clear = newport_clear, 724 .con_putc = newport_putc, 725 .con_putcs = newport_putcs, 726 .con_cursor = newport_cursor, 727 .con_scroll = newport_scroll, 728 .con_bmove = newport_bmove, 729 .con_switch = newport_switch, 730 .con_blank = newport_blank, 731 .con_font_set = newport_font_set, 732 .con_font_default = newport_font_default, 733 .con_set_palette = newport_set_palette, 734 .con_scrolldelta = newport_scrolldelta, 735 .con_set_origin = DUMMY, 736 .con_save_screen = DUMMY 737 }; 738 739 static int newport_probe(struct gio_device *dev, 740 const struct gio_device_id *id) 741 { 742 unsigned long newport_addr; 743 744 if (!dev->resource.start) 745 return -EINVAL; 746 747 if (npregs) 748 return -EBUSY; /* we only support one Newport as console */ 749 750 newport_addr = dev->resource.start + 0xF0000; 751 if (!request_mem_region(newport_addr, 0x10000, "Newport")) 752 return -ENODEV; 753 754 npregs = (struct newport_regs *)/* ioremap cannot fail */ 755 ioremap(newport_addr, sizeof(struct newport_regs)); 756 757 return take_over_console(&newport_con, 0, MAX_NR_CONSOLES - 1, 1); 758 } 759 760 static void newport_remove(struct gio_device *dev) 761 { 762 give_up_console(&newport_con); 763 iounmap((void *)npregs); 764 } 765 766 static struct gio_device_id newport_ids[] = { 767 { .id = 0x7e }, 768 { .id = 0xff } 769 }; 770 771 MODULE_ALIAS("gio:7e"); 772 773 static struct gio_driver newport_driver = { 774 .name = "newport", 775 .id_table = newport_ids, 776 .probe = newport_probe, 777 .remove = newport_remove, 778 }; 779 780 int __init newport_console_init(void) 781 { 782 return gio_register_driver(&newport_driver); 783 } 784 785 void __exit newport_console_exit(void) 786 { 787 gio_unregister_driver(&newport_driver); 788 } 789 790 module_init(newport_console_init); 791 module_exit(newport_console_exit); 792 793 MODULE_LICENSE("GPL"); 794