Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* $Id: promcon.c,v 1.17 2000/07/26 23:02:52 davem Exp $ |
| 2 | * Console driver utilizing PROM sun terminal emulation |
| 3 | * |
| 4 | * Copyright (C) 1998 Eddie C. Dost (ecd@skynet.be) |
| 5 | * Copyright (C) 1998 Jakub Jelinek (jj@ultra.linux.cz) |
| 6 | */ |
| 7 | |
| 8 | #include <linux/config.h> |
| 9 | #include <linux/module.h> |
| 10 | #include <linux/kernel.h> |
| 11 | #include <linux/errno.h> |
| 12 | #include <linux/string.h> |
| 13 | #include <linux/mm.h> |
| 14 | #include <linux/tty.h> |
| 15 | #include <linux/slab.h> |
| 16 | #include <linux/delay.h> |
| 17 | #include <linux/console.h> |
| 18 | #include <linux/vt_kern.h> |
| 19 | #include <linux/selection.h> |
| 20 | #include <linux/fb.h> |
| 21 | #include <linux/init.h> |
| 22 | #include <linux/kd.h> |
| 23 | |
| 24 | #include <asm/oplib.h> |
| 25 | #include <asm/uaccess.h> |
| 26 | |
| 27 | static short pw = 80 - 1, ph = 34 - 1; |
| 28 | static short px, py; |
| 29 | static unsigned long promcon_uni_pagedir[2]; |
| 30 | |
| 31 | extern u8 promfont_unicount[]; |
| 32 | extern u16 promfont_unitable[]; |
| 33 | |
| 34 | #define PROMCON_COLOR 0 |
| 35 | |
| 36 | #if PROMCON_COLOR |
| 37 | #define inverted(s) ((((s) & 0x7700) == 0x0700) ? 0 : 1) |
| 38 | #else |
| 39 | #define inverted(s) (((s) & 0x0800) ? 1 : 0) |
| 40 | #endif |
| 41 | |
| 42 | static __inline__ void |
| 43 | promcon_puts(char *buf, int cnt) |
| 44 | { |
| 45 | prom_printf("%*.*s", cnt, cnt, buf); |
| 46 | } |
| 47 | |
| 48 | static int |
| 49 | promcon_start(struct vc_data *conp, char *b) |
| 50 | { |
| 51 | unsigned short *s = (unsigned short *) |
| 52 | (conp->vc_origin + py * conp->vc_size_row + (px << 1)); |
| 53 | u16 cs; |
| 54 | |
| 55 | cs = scr_readw(s); |
| 56 | if (px == pw) { |
| 57 | unsigned short *t = s - 1; |
| 58 | u16 ct = scr_readw(t); |
| 59 | |
| 60 | if (inverted(cs) && inverted(ct)) |
| 61 | return sprintf(b, "\b\033[7m%c\b\033[@%c\033[m", cs, |
| 62 | ct); |
| 63 | else if (inverted(cs)) |
| 64 | return sprintf(b, "\b\033[7m%c\033[m\b\033[@%c", cs, |
| 65 | ct); |
| 66 | else if (inverted(ct)) |
| 67 | return sprintf(b, "\b%c\b\033[@\033[7m%c\033[m", cs, |
| 68 | ct); |
| 69 | else |
| 70 | return sprintf(b, "\b%c\b\033[@%c", cs, ct); |
| 71 | } |
| 72 | |
| 73 | if (inverted(cs)) |
| 74 | return sprintf(b, "\033[7m%c\033[m\b", cs); |
| 75 | else |
| 76 | return sprintf(b, "%c\b", cs); |
| 77 | } |
| 78 | |
| 79 | static int |
| 80 | promcon_end(struct vc_data *conp, char *b) |
| 81 | { |
| 82 | unsigned short *s = (unsigned short *) |
| 83 | (conp->vc_origin + py * conp->vc_size_row + (px << 1)); |
| 84 | char *p = b; |
| 85 | u16 cs; |
| 86 | |
| 87 | b += sprintf(b, "\033[%d;%dH", py + 1, px + 1); |
| 88 | |
| 89 | cs = scr_readw(s); |
| 90 | if (px == pw) { |
| 91 | unsigned short *t = s - 1; |
| 92 | u16 ct = scr_readw(t); |
| 93 | |
| 94 | if (inverted(cs) && inverted(ct)) |
| 95 | b += sprintf(b, "\b%c\b\033[@\033[7m%c\033[m", cs, ct); |
| 96 | else if (inverted(cs)) |
| 97 | b += sprintf(b, "\b%c\b\033[@%c", cs, ct); |
| 98 | else if (inverted(ct)) |
| 99 | b += sprintf(b, "\b\033[7m%c\b\033[@%c\033[m", cs, ct); |
| 100 | else |
| 101 | b += sprintf(b, "\b\033[7m%c\033[m\b\033[@%c", cs, ct); |
| 102 | return b - p; |
| 103 | } |
| 104 | |
| 105 | if (inverted(cs)) |
| 106 | b += sprintf(b, "%c\b", cs); |
| 107 | else |
| 108 | b += sprintf(b, "\033[7m%c\033[m\b", cs); |
| 109 | return b - p; |
| 110 | } |
| 111 | |
Antonino A. Daplas | 2aea875 | 2006-06-26 00:27:16 -0700 | [diff] [blame] | 112 | const char *promcon_startup(void) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 113 | { |
| 114 | const char *display_desc = "PROM"; |
| 115 | int node; |
| 116 | char buf[40]; |
| 117 | |
| 118 | node = prom_getchild(prom_root_node); |
| 119 | node = prom_searchsiblings(node, "options"); |
| 120 | if (prom_getproperty(node, "screen-#columns", buf, 40) != -1) { |
| 121 | pw = simple_strtoul(buf, NULL, 0); |
| 122 | if (pw < 10 || pw > 256) |
| 123 | pw = 80; |
| 124 | pw--; |
| 125 | } |
| 126 | if (prom_getproperty(node, "screen-#rows", buf, 40) != -1) { |
| 127 | ph = simple_strtoul(buf, NULL, 0); |
| 128 | if (ph < 10 || ph > 256) |
| 129 | ph = 34; |
| 130 | ph--; |
| 131 | } |
| 132 | promcon_puts("\033[H\033[J", 6); |
| 133 | return display_desc; |
| 134 | } |
| 135 | |
Antonino A. Daplas | 2aea875 | 2006-06-26 00:27:16 -0700 | [diff] [blame] | 136 | static void |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 137 | promcon_init_unimap(struct vc_data *conp) |
| 138 | { |
| 139 | mm_segment_t old_fs = get_fs(); |
| 140 | struct unipair *p, *p1; |
| 141 | u16 *q; |
| 142 | int i, j, k; |
| 143 | |
| 144 | p = kmalloc(256*sizeof(struct unipair), GFP_KERNEL); |
| 145 | if (!p) return; |
| 146 | |
| 147 | q = promfont_unitable; |
| 148 | p1 = p; |
| 149 | k = 0; |
| 150 | for (i = 0; i < 256; i++) |
| 151 | for (j = promfont_unicount[i]; j; j--) { |
| 152 | p1->unicode = *q++; |
| 153 | p1->fontpos = i; |
| 154 | p1++; |
| 155 | k++; |
| 156 | } |
| 157 | set_fs(KERNEL_DS); |
| 158 | con_clear_unimap(conp, NULL); |
| 159 | con_set_unimap(conp, k, p); |
| 160 | con_protect_unimap(conp, 1); |
| 161 | set_fs(old_fs); |
| 162 | kfree(p); |
| 163 | } |
| 164 | |
| 165 | static void |
| 166 | promcon_init(struct vc_data *conp, int init) |
| 167 | { |
| 168 | unsigned long p; |
| 169 | |
| 170 | conp->vc_can_do_color = PROMCON_COLOR; |
| 171 | if (init) { |
| 172 | conp->vc_cols = pw + 1; |
| 173 | conp->vc_rows = ph + 1; |
| 174 | } |
| 175 | p = *conp->vc_uni_pagedir_loc; |
| 176 | if (conp->vc_uni_pagedir_loc == &conp->vc_uni_pagedir || |
| 177 | !--conp->vc_uni_pagedir_loc[1]) |
| 178 | con_free_unimap(conp); |
| 179 | conp->vc_uni_pagedir_loc = promcon_uni_pagedir; |
| 180 | promcon_uni_pagedir[1]++; |
| 181 | if (!promcon_uni_pagedir[0] && p) { |
| 182 | promcon_init_unimap(conp); |
| 183 | } |
| 184 | if (!init) { |
| 185 | if (conp->vc_cols != pw + 1 || conp->vc_rows != ph + 1) |
| 186 | vc_resize(conp, pw + 1, ph + 1); |
| 187 | } |
| 188 | } |
| 189 | |
| 190 | static void |
| 191 | promcon_deinit(struct vc_data *conp) |
| 192 | { |
| 193 | /* When closing the last console, reset video origin */ |
| 194 | if (!--promcon_uni_pagedir[1]) |
| 195 | con_free_unimap(conp); |
| 196 | conp->vc_uni_pagedir_loc = &conp->vc_uni_pagedir; |
| 197 | con_set_default_unimap(conp); |
| 198 | } |
| 199 | |
| 200 | static int |
| 201 | promcon_switch(struct vc_data *conp) |
| 202 | { |
| 203 | return 1; |
| 204 | } |
| 205 | |
| 206 | static unsigned short * |
| 207 | promcon_repaint_line(unsigned short *s, unsigned char *buf, unsigned char **bp) |
| 208 | { |
| 209 | int cnt = pw + 1; |
| 210 | int attr = -1; |
| 211 | unsigned char *b = *bp; |
| 212 | |
| 213 | while (cnt--) { |
| 214 | u16 c = scr_readw(s); |
| 215 | if (attr != inverted(c)) { |
| 216 | attr = inverted(c); |
| 217 | if (attr) { |
| 218 | strcpy (b, "\033[7m"); |
| 219 | b += 4; |
| 220 | } else { |
| 221 | strcpy (b, "\033[m"); |
| 222 | b += 3; |
| 223 | } |
| 224 | } |
| 225 | *b++ = c; |
| 226 | s++; |
| 227 | if (b - buf >= 224) { |
| 228 | promcon_puts(buf, b - buf); |
| 229 | b = buf; |
| 230 | } |
| 231 | } |
| 232 | *bp = b; |
| 233 | return s; |
| 234 | } |
| 235 | |
| 236 | static void |
| 237 | promcon_putcs(struct vc_data *conp, const unsigned short *s, |
| 238 | int count, int y, int x) |
| 239 | { |
| 240 | unsigned char buf[256], *b = buf; |
| 241 | unsigned short attr = scr_readw(s); |
| 242 | unsigned char save; |
| 243 | int i, last = 0; |
| 244 | |
| 245 | if (console_blanked) |
| 246 | return; |
| 247 | |
| 248 | if (count <= 0) |
| 249 | return; |
| 250 | |
| 251 | b += promcon_start(conp, b); |
| 252 | |
| 253 | if (x + count >= pw + 1) { |
| 254 | if (count == 1) { |
| 255 | x -= 1; |
| 256 | save = scr_readw((unsigned short *)(conp->vc_origin |
| 257 | + y * conp->vc_size_row |
| 258 | + (x << 1))); |
| 259 | |
| 260 | if (px != x || py != y) { |
| 261 | b += sprintf(b, "\033[%d;%dH", y + 1, x + 1); |
| 262 | px = x; |
| 263 | py = y; |
| 264 | } |
| 265 | |
| 266 | if (inverted(attr)) |
| 267 | b += sprintf(b, "\033[7m%c\033[m", scr_readw(s++)); |
| 268 | else |
| 269 | b += sprintf(b, "%c", scr_readw(s++)); |
| 270 | |
| 271 | strcpy(b, "\b\033[@"); |
| 272 | b += 4; |
| 273 | |
| 274 | if (inverted(save)) |
| 275 | b += sprintf(b, "\033[7m%c\033[m", save); |
| 276 | else |
| 277 | b += sprintf(b, "%c", save); |
| 278 | |
| 279 | px++; |
| 280 | |
| 281 | b += promcon_end(conp, b); |
| 282 | promcon_puts(buf, b - buf); |
| 283 | return; |
| 284 | } else { |
| 285 | last = 1; |
| 286 | count = pw - x - 1; |
| 287 | } |
| 288 | } |
| 289 | |
| 290 | if (inverted(attr)) { |
| 291 | strcpy(b, "\033[7m"); |
| 292 | b += 4; |
| 293 | } |
| 294 | |
| 295 | if (px != x || py != y) { |
| 296 | b += sprintf(b, "\033[%d;%dH", y + 1, x + 1); |
| 297 | px = x; |
| 298 | py = y; |
| 299 | } |
| 300 | |
| 301 | for (i = 0; i < count; i++) { |
| 302 | if (b - buf >= 224) { |
| 303 | promcon_puts(buf, b - buf); |
| 304 | b = buf; |
| 305 | } |
| 306 | *b++ = scr_readw(s++); |
| 307 | } |
| 308 | |
| 309 | px += count; |
| 310 | |
| 311 | if (last) { |
| 312 | save = scr_readw(s++); |
| 313 | b += sprintf(b, "%c\b\033[@%c", scr_readw(s++), save); |
| 314 | px++; |
| 315 | } |
| 316 | |
| 317 | if (inverted(attr)) { |
| 318 | strcpy(b, "\033[m"); |
| 319 | b += 3; |
| 320 | } |
| 321 | |
| 322 | b += promcon_end(conp, b); |
| 323 | promcon_puts(buf, b - buf); |
| 324 | } |
| 325 | |
| 326 | static void |
| 327 | promcon_putc(struct vc_data *conp, int c, int y, int x) |
| 328 | { |
| 329 | unsigned short s; |
| 330 | |
| 331 | if (console_blanked) |
| 332 | return; |
| 333 | |
| 334 | scr_writew(c, &s); |
| 335 | promcon_putcs(conp, &s, 1, y, x); |
| 336 | } |
| 337 | |
| 338 | static void |
| 339 | promcon_clear(struct vc_data *conp, int sy, int sx, int height, int width) |
| 340 | { |
| 341 | unsigned char buf[256], *b = buf; |
| 342 | int i, j; |
| 343 | |
| 344 | if (console_blanked) |
| 345 | return; |
| 346 | |
| 347 | b += promcon_start(conp, b); |
| 348 | |
| 349 | if (!sx && width == pw + 1) { |
| 350 | |
| 351 | if (!sy && height == ph + 1) { |
| 352 | strcpy(b, "\033[H\033[J"); |
| 353 | b += 6; |
| 354 | b += promcon_end(conp, b); |
| 355 | promcon_puts(buf, b - buf); |
| 356 | return; |
| 357 | } else if (sy + height == ph + 1) { |
| 358 | b += sprintf(b, "\033[%dH\033[J", sy + 1); |
| 359 | b += promcon_end(conp, b); |
| 360 | promcon_puts(buf, b - buf); |
| 361 | return; |
| 362 | } |
| 363 | |
| 364 | b += sprintf(b, "\033[%dH", sy + 1); |
| 365 | for (i = 1; i < height; i++) { |
| 366 | strcpy(b, "\033[K\n"); |
| 367 | b += 4; |
| 368 | } |
| 369 | |
| 370 | strcpy(b, "\033[K"); |
| 371 | b += 3; |
| 372 | |
| 373 | b += promcon_end(conp, b); |
| 374 | promcon_puts(buf, b - buf); |
| 375 | return; |
| 376 | |
| 377 | } else if (sx + width == pw + 1) { |
| 378 | |
| 379 | b += sprintf(b, "\033[%d;%dH", sy + 1, sx + 1); |
| 380 | for (i = 1; i < height; i++) { |
| 381 | strcpy(b, "\033[K\n"); |
| 382 | b += 4; |
| 383 | } |
| 384 | |
| 385 | strcpy(b, "\033[K"); |
| 386 | b += 3; |
| 387 | |
| 388 | b += promcon_end(conp, b); |
| 389 | promcon_puts(buf, b - buf); |
| 390 | return; |
| 391 | } |
| 392 | |
| 393 | for (i = sy + 1; i <= sy + height; i++) { |
| 394 | b += sprintf(b, "\033[%d;%dH", i, sx + 1); |
| 395 | for (j = 0; j < width; j++) |
| 396 | *b++ = ' '; |
| 397 | if (b - buf + width >= 224) { |
| 398 | promcon_puts(buf, b - buf); |
| 399 | b = buf; |
| 400 | } |
| 401 | } |
| 402 | |
| 403 | b += promcon_end(conp, b); |
| 404 | promcon_puts(buf, b - buf); |
| 405 | } |
| 406 | |
| 407 | static void |
| 408 | promcon_bmove(struct vc_data *conp, int sy, int sx, int dy, int dx, |
| 409 | int height, int width) |
| 410 | { |
| 411 | char buf[256], *b = buf; |
| 412 | |
| 413 | if (console_blanked) |
| 414 | return; |
| 415 | |
| 416 | b += promcon_start(conp, b); |
| 417 | if (sy == dy && height == 1) { |
| 418 | if (dx > sx && dx + width == conp->vc_cols) |
| 419 | b += sprintf(b, "\033[%d;%dH\033[%d@\033[%d;%dH", |
| 420 | sy + 1, sx + 1, dx - sx, py + 1, px + 1); |
| 421 | else if (dx < sx && sx + width == conp->vc_cols) |
| 422 | b += sprintf(b, "\033[%d;%dH\033[%dP\033[%d;%dH", |
| 423 | dy + 1, dx + 1, sx - dx, py + 1, px + 1); |
| 424 | |
| 425 | b += promcon_end(conp, b); |
| 426 | promcon_puts(buf, b - buf); |
| 427 | return; |
| 428 | } |
| 429 | |
| 430 | /* |
| 431 | * FIXME: What to do here??? |
| 432 | * Current console.c should not call it like that ever. |
| 433 | */ |
| 434 | prom_printf("\033[7mFIXME: bmove not handled\033[m\n"); |
| 435 | } |
| 436 | |
| 437 | static void |
| 438 | promcon_cursor(struct vc_data *conp, int mode) |
| 439 | { |
| 440 | char buf[32], *b = buf; |
| 441 | |
| 442 | switch (mode) { |
| 443 | case CM_ERASE: |
| 444 | break; |
| 445 | |
| 446 | case CM_MOVE: |
| 447 | case CM_DRAW: |
| 448 | b += promcon_start(conp, b); |
| 449 | if (px != conp->vc_x || py != conp->vc_y) { |
| 450 | px = conp->vc_x; |
| 451 | py = conp->vc_y; |
| 452 | b += sprintf(b, "\033[%d;%dH", py + 1, px + 1); |
| 453 | } |
| 454 | promcon_puts(buf, b - buf); |
| 455 | break; |
| 456 | } |
| 457 | } |
| 458 | |
| 459 | static int |
| 460 | promcon_blank(struct vc_data *conp, int blank, int mode_switch) |
| 461 | { |
| 462 | if (blank) { |
| 463 | promcon_puts("\033[H\033[J\033[7m \033[m\b", 15); |
| 464 | return 0; |
| 465 | } else { |
| 466 | /* Let console.c redraw */ |
| 467 | return 1; |
| 468 | } |
| 469 | } |
| 470 | |
| 471 | static int |
| 472 | promcon_scroll(struct vc_data *conp, int t, int b, int dir, int count) |
| 473 | { |
| 474 | unsigned char buf[256], *p = buf; |
| 475 | unsigned short *s; |
| 476 | int i; |
| 477 | |
| 478 | if (console_blanked) |
| 479 | return 0; |
| 480 | |
| 481 | p += promcon_start(conp, p); |
| 482 | |
| 483 | switch (dir) { |
| 484 | case SM_UP: |
| 485 | if (b == ph + 1) { |
| 486 | p += sprintf(p, "\033[%dH\033[%dM", t + 1, count); |
| 487 | px = 0; |
| 488 | py = t; |
| 489 | p += promcon_end(conp, p); |
| 490 | promcon_puts(buf, p - buf); |
| 491 | break; |
| 492 | } |
| 493 | |
| 494 | s = (unsigned short *)(conp->vc_origin |
| 495 | + (t + count) * conp->vc_size_row); |
| 496 | |
| 497 | p += sprintf(p, "\033[%dH", t + 1); |
| 498 | |
| 499 | for (i = t; i < b - count; i++) |
| 500 | s = promcon_repaint_line(s, buf, &p); |
| 501 | |
| 502 | for (; i < b - 1; i++) { |
| 503 | strcpy(p, "\033[K\n"); |
| 504 | p += 4; |
| 505 | if (p - buf >= 224) { |
| 506 | promcon_puts(buf, p - buf); |
| 507 | p = buf; |
| 508 | } |
| 509 | } |
| 510 | |
| 511 | strcpy(p, "\033[K"); |
| 512 | p += 3; |
| 513 | |
| 514 | p += promcon_end(conp, p); |
| 515 | promcon_puts(buf, p - buf); |
| 516 | break; |
| 517 | |
| 518 | case SM_DOWN: |
| 519 | if (b == ph + 1) { |
| 520 | p += sprintf(p, "\033[%dH\033[%dL", t + 1, count); |
| 521 | px = 0; |
| 522 | py = t; |
| 523 | p += promcon_end(conp, p); |
| 524 | promcon_puts(buf, p - buf); |
| 525 | break; |
| 526 | } |
| 527 | |
| 528 | s = (unsigned short *)(conp->vc_origin + t * conp->vc_size_row); |
| 529 | |
| 530 | p += sprintf(p, "\033[%dH", t + 1); |
| 531 | |
| 532 | for (i = t; i < t + count; i++) { |
| 533 | strcpy(p, "\033[K\n"); |
| 534 | p += 4; |
| 535 | if (p - buf >= 224) { |
| 536 | promcon_puts(buf, p - buf); |
| 537 | p = buf; |
| 538 | } |
| 539 | } |
| 540 | |
| 541 | for (; i < b; i++) |
| 542 | s = promcon_repaint_line(s, buf, &p); |
| 543 | |
| 544 | p += promcon_end(conp, p); |
| 545 | promcon_puts(buf, p - buf); |
| 546 | break; |
| 547 | } |
| 548 | |
| 549 | return 0; |
| 550 | } |
| 551 | |
| 552 | #if !(PROMCON_COLOR) |
| 553 | static u8 promcon_build_attr(struct vc_data *conp, u8 _color, u8 _intensity, u8 _blink, u8 _underline, u8 _reverse) |
| 554 | { |
| 555 | return (_reverse) ? 0xf : 0x7; |
| 556 | } |
| 557 | #endif |
| 558 | |
| 559 | /* |
| 560 | * The console 'switch' structure for the VGA based console |
| 561 | */ |
| 562 | |
| 563 | static int promcon_dummy(void) |
| 564 | { |
| 565 | return 0; |
| 566 | } |
| 567 | |
| 568 | #define DUMMY (void *) promcon_dummy |
| 569 | |
| 570 | const struct consw prom_con = { |
| 571 | .owner = THIS_MODULE, |
| 572 | .con_startup = promcon_startup, |
| 573 | .con_init = promcon_init, |
| 574 | .con_deinit = promcon_deinit, |
| 575 | .con_clear = promcon_clear, |
| 576 | .con_putc = promcon_putc, |
| 577 | .con_putcs = promcon_putcs, |
| 578 | .con_cursor = promcon_cursor, |
| 579 | .con_scroll = promcon_scroll, |
| 580 | .con_bmove = promcon_bmove, |
| 581 | .con_switch = promcon_switch, |
| 582 | .con_blank = promcon_blank, |
| 583 | .con_set_palette = DUMMY, |
| 584 | .con_scrolldelta = DUMMY, |
| 585 | #if !(PROMCON_COLOR) |
| 586 | .con_build_attr = promcon_build_attr, |
| 587 | #endif |
| 588 | }; |
| 589 | |
| 590 | void __init prom_con_init(void) |
| 591 | { |
| 592 | #ifdef CONFIG_DUMMY_CONSOLE |
| 593 | if (conswitchp == &dummy_con) |
| 594 | take_over_console(&prom_con, 0, MAX_NR_CONSOLES-1, 1); |
| 595 | else |
| 596 | #endif |
| 597 | if (conswitchp == &prom_con) |
| 598 | promcon_init_unimap(vc_cons[fg_console].d); |
| 599 | } |