1/* 2 * linux/drivers/video/console/sticore.c - 3 * core code for console driver using HP's STI firmware 4 * 5 * Copyright (C) 2000 Philipp Rumpf <prumpf@tux.org> 6 * Copyright (C) 2001-2003 Helge Deller <deller@gmx.de> 7 * Copyright (C) 2001-2002 Thomas Bogendoerfer <tsbogend@alpha.franken.de> 8 * 9 * TODO: 10 * - call STI in virtual mode rather than in real mode 11 * - screen blanking with state_mgmt() in text mode STI ? 12 * - try to make it work on m68k hp workstations ;) 13 * 14 */ 15 16#include <linux/module.h> 17#include <linux/types.h> 18#include <linux/kernel.h> 19#include <linux/slab.h> 20#include <linux/init.h> 21#include <linux/pci.h> 22#include <linux/font.h> 23 24#include <asm/hardware.h> 25#include <asm/parisc-device.h> 26#include <asm/cacheflush.h> 27#include <asm/grfioctl.h> 28 29#include "../sticore.h" 30 31#define STI_DRIVERVERSION "Version 0.9a" 32 33static struct sti_struct *default_sti __read_mostly; 34 35/* number of STI ROMS found and their ptrs to each struct */ 36static int num_sti_roms __read_mostly; 37static struct sti_struct *sti_roms[MAX_STI_ROMS] __read_mostly; 38 39 40/* The colour indices used by STI are 41 * 0 - Black 42 * 1 - White 43 * 2 - Red 44 * 3 - Yellow/Brown 45 * 4 - Green 46 * 5 - Cyan 47 * 6 - Blue 48 * 7 - Magenta 49 * 50 * So we have the same colours as VGA (basically one bit each for R, G, B), 51 * but have to translate them, anyway. */ 52 53static const u8 col_trans[8] = { 54 0, 6, 4, 5, 55 2, 7, 3, 1 56}; 57 58#define c_fg(sti, c) col_trans[((c>> 8) & 7)] 59#define c_bg(sti, c) col_trans[((c>>11) & 7)] 60#define c_index(sti, c) ((c) & 0xff) 61 62static const struct sti_init_flags default_init_flags = { 63 .wait = STI_WAIT, 64 .reset = 1, 65 .text = 1, 66 .nontext = 1, 67 .no_chg_bet = 1, 68 .no_chg_bei = 1, 69 .init_cmap_tx = 1, 70}; 71 72static int sti_init_graph(struct sti_struct *sti) 73{ 74 struct sti_init_inptr_ext inptr_ext = { 0, }; 75 struct sti_init_inptr inptr = { 76 .text_planes = 3, /* # of text planes (max 3 for STI) */ 77 .ext_ptr = STI_PTR(&inptr_ext) 78 }; 79 struct sti_init_outptr outptr = { 0, }; 80 unsigned long flags; 81 int ret; 82 83 spin_lock_irqsave(&sti->lock, flags); 84 85 ret = STI_CALL(sti->init_graph, &default_init_flags, &inptr, 86 &outptr, sti->glob_cfg); 87 88 spin_unlock_irqrestore(&sti->lock, flags); 89 90 if (ret < 0) { 91 printk(KERN_ERR "STI init_graph failed (ret %d, errno %d)\n",ret,outptr.errno); 92 return -1; 93 } 94 95 sti->text_planes = outptr.text_planes; 96 return 0; 97} 98 99static const struct sti_conf_flags default_conf_flags = { 100 .wait = STI_WAIT, 101}; 102 103static void sti_inq_conf(struct sti_struct *sti) 104{ 105 struct sti_conf_inptr inptr = { 0, }; 106 unsigned long flags; 107 s32 ret; 108 109 sti->outptr.ext_ptr = STI_PTR(&sti->outptr_ext); 110 111 do { 112 spin_lock_irqsave(&sti->lock, flags); 113 ret = STI_CALL(sti->inq_conf, &default_conf_flags, 114 &inptr, &sti->outptr, sti->glob_cfg); 115 spin_unlock_irqrestore(&sti->lock, flags); 116 } while (ret == 1); 117} 118 119static const struct sti_font_flags default_font_flags = { 120 .wait = STI_WAIT, 121 .non_text = 0, 122}; 123 124void 125sti_putc(struct sti_struct *sti, int c, int y, int x) 126{ 127 struct sti_font_inptr inptr = { 128 .font_start_addr= STI_PTR(sti->font->raw), 129 .index = c_index(sti, c), 130 .fg_color = c_fg(sti, c), 131 .bg_color = c_bg(sti, c), 132 .dest_x = x * sti->font_width, 133 .dest_y = y * sti->font_height, 134 }; 135 struct sti_font_outptr outptr = { 0, }; 136 s32 ret; 137 unsigned long flags; 138 139 do { 140 spin_lock_irqsave(&sti->lock, flags); 141 ret = STI_CALL(sti->font_unpmv, &default_font_flags, 142 &inptr, &outptr, sti->glob_cfg); 143 spin_unlock_irqrestore(&sti->lock, flags); 144 } while (ret == 1); 145} 146 147static const struct sti_blkmv_flags clear_blkmv_flags = { 148 .wait = STI_WAIT, 149 .color = 1, 150 .clear = 1, 151}; 152 153void 154sti_set(struct sti_struct *sti, int src_y, int src_x, 155 int height, int width, u8 color) 156{ 157 struct sti_blkmv_inptr inptr = { 158 .fg_color = color, 159 .bg_color = color, 160 .src_x = src_x, 161 .src_y = src_y, 162 .dest_x = src_x, 163 .dest_y = src_y, 164 .width = width, 165 .height = height, 166 }; 167 struct sti_blkmv_outptr outptr = { 0, }; 168 s32 ret; 169 unsigned long flags; 170 171 do { 172 spin_lock_irqsave(&sti->lock, flags); 173 ret = STI_CALL(sti->block_move, &clear_blkmv_flags, 174 &inptr, &outptr, sti->glob_cfg); 175 spin_unlock_irqrestore(&sti->lock, flags); 176 } while (ret == 1); 177} 178 179void 180sti_clear(struct sti_struct *sti, int src_y, int src_x, 181 int height, int width, int c) 182{ 183 struct sti_blkmv_inptr inptr = { 184 .fg_color = c_fg(sti, c), 185 .bg_color = c_bg(sti, c), 186 .src_x = src_x * sti->font_width, 187 .src_y = src_y * sti->font_height, 188 .dest_x = src_x * sti->font_width, 189 .dest_y = src_y * sti->font_height, 190 .width = width * sti->font_width, 191 .height = height* sti->font_height, 192 }; 193 struct sti_blkmv_outptr outptr = { 0, }; 194 s32 ret; 195 unsigned long flags; 196 197 do { 198 spin_lock_irqsave(&sti->lock, flags); 199 ret = STI_CALL(sti->block_move, &clear_blkmv_flags, 200 &inptr, &outptr, sti->glob_cfg); 201 spin_unlock_irqrestore(&sti->lock, flags); 202 } while (ret == 1); 203} 204 205static const struct sti_blkmv_flags default_blkmv_flags = { 206 .wait = STI_WAIT, 207}; 208 209void 210sti_bmove(struct sti_struct *sti, int src_y, int src_x, 211 int dst_y, int dst_x, int height, int width) 212{ 213 struct sti_blkmv_inptr inptr = { 214 .src_x = src_x * sti->font_width, 215 .src_y = src_y * sti->font_height, 216 .dest_x = dst_x * sti->font_width, 217 .dest_y = dst_y * sti->font_height, 218 .width = width * sti->font_width, 219 .height = height* sti->font_height, 220 }; 221 struct sti_blkmv_outptr outptr = { 0, }; 222 s32 ret; 223 unsigned long flags; 224 225 do { 226 spin_lock_irqsave(&sti->lock, flags); 227 ret = STI_CALL(sti->block_move, &default_blkmv_flags, 228 &inptr, &outptr, sti->glob_cfg); 229 spin_unlock_irqrestore(&sti->lock, flags); 230 } while (ret == 1); 231} 232 233 234static void sti_flush(unsigned long start, unsigned long end) 235{ 236 flush_icache_range(start, end); 237} 238 239static void __devinit sti_rom_copy(unsigned long base, unsigned long count, 240 void *dest) 241{ 242 unsigned long dest_start = (unsigned long) dest; 243 244 /* this still needs to be revisited (see arch/parisc/mm/init.c:246) ! */ 245 while (count >= 4) { 246 count -= 4; 247 *(u32 *)dest = gsc_readl(base); 248 base += 4; 249 dest += 4; 250 } 251 while (count) { 252 count--; 253 *(u8 *)dest = gsc_readb(base); 254 base++; 255 dest++; 256 } 257 258 sti_flush(dest_start, (unsigned long)dest); 259} 260 261 262 263 264static char default_sti_path[21] __read_mostly; 265 266#ifndef MODULE 267static int __devinit sti_setup(char *str) 268{ 269 if (str) 270 strlcpy (default_sti_path, str, sizeof (default_sti_path)); 271 272 return 1; 273} 274 275/* Assuming the machine has multiple STI consoles (=graphic cards) which 276 * all get detected by sticon, the user may define with the linux kernel 277 * parameter sti=<x> which of them will be the initial boot-console. 278 * <x> is a number between 0 and MAX_STI_ROMS, with 0 as the default 279 * STI screen. 280 */ 281__setup("sti=", sti_setup); 282#endif 283 284 285 286static char __devinitdata *font_name[MAX_STI_ROMS] = { "VGA8x16", }; 287static int __devinitdata font_index[MAX_STI_ROMS], 288 font_height[MAX_STI_ROMS], 289 font_width[MAX_STI_ROMS]; 290#ifndef MODULE 291static int __devinit sti_font_setup(char *str) 292{ 293 char *x; 294 int i = 0; 295 296 /* we accept sti_font=VGA8x16, sti_font=10x20, sti_font=10*20 297 * or sti_font=7 style command lines. */ 298 299 while (i<MAX_STI_ROMS && str && *str) { 300 if (*str>='0' && *str<='9') { 301 if ((x = strchr(str, 'x')) || (x = strchr(str, '*'))) { 302 font_height[i] = simple_strtoul(str, NULL, 0); 303 font_width[i] = simple_strtoul(x+1, NULL, 0); 304 } else { 305 font_index[i] = simple_strtoul(str, NULL, 0); 306 } 307 } else { 308 font_name[i] = str; /* fb font name */ 309 } 310 311 if ((x = strchr(str, ','))) 312 *x++ = 0; 313 str = x; 314 315 i++; 316 } 317 318 return 1; 319} 320 321/* The optional linux kernel parameter "sti_font" defines which font 322 * should be used by the sticon driver to draw characters to the screen. 323 * Possible values are: 324 * - sti_font=<fb_fontname>: 325 * <fb_fontname> is the name of one of the linux-kernel built-in 326 * framebuffer font names (e.g. VGA8x16, SUN22x18). 327 * This is only available if the fonts have been statically compiled 328 * in with e.g. the CONFIG_FONT_8x16 or CONFIG_FONT_SUN12x22 options. 329 * - sti_font=<number> 330 * most STI ROMs have built-in HP specific fonts, which can be selected 331 * by giving the desired number to the sticon driver. 332 * NOTE: This number is machine and STI ROM dependend. 333 * - sti_font=<height>x<width> (e.g. sti_font=16x8) 334 * <height> and <width> gives hints to the height and width of the 335 * font which the user wants. The sticon driver will try to use 336 * a font with this height and width, but if no suitable font is 337 * found, sticon will use the default 8x8 font. 338 */ 339__setup("sti_font=", sti_font_setup); 340#endif 341 342 343 344static void __devinit 345sti_dump_globcfg(struct sti_glob_cfg *glob_cfg, unsigned int sti_mem_request) 346{ 347 struct sti_glob_cfg_ext *cfg; 348 349 DPRINTK((KERN_INFO 350 "%d text planes\n" 351 "%4d x %4d screen resolution\n" 352 "%4d x %4d offscreen\n" 353 "%4d x %4d layout\n" 354 "regions at %08x %08x %08x %08x\n" 355 "regions at %08x %08x %08x %08x\n" 356 "reent_lvl %d\n" 357 "save_addr %08x\n", 358 glob_cfg->text_planes, 359 glob_cfg->onscreen_x, glob_cfg->onscreen_y, 360 glob_cfg->offscreen_x, glob_cfg->offscreen_y, 361 glob_cfg->total_x, glob_cfg->total_y, 362 glob_cfg->region_ptrs[0], glob_cfg->region_ptrs[1], 363 glob_cfg->region_ptrs[2], glob_cfg->region_ptrs[3], 364 glob_cfg->region_ptrs[4], glob_cfg->region_ptrs[5], 365 glob_cfg->region_ptrs[6], glob_cfg->region_ptrs[7], 366 glob_cfg->reent_lvl, 367 glob_cfg->save_addr)); 368 369 /* dump extended cfg */ 370 cfg = PTR_STI((unsigned long)glob_cfg->ext_ptr); 371 DPRINTK(( KERN_INFO 372 "monitor %d\n" 373 "in friendly mode: %d\n" 374 "power consumption %d watts\n" 375 "freq ref %d\n" 376 "sti_mem_addr %08x (size=%d bytes)\n", 377 cfg->curr_mon, 378 cfg->friendly_boot, 379 cfg->power, 380 cfg->freq_ref, 381 cfg->sti_mem_addr, sti_mem_request)); 382} 383 384static void __devinit 385sti_dump_outptr(struct sti_struct *sti) 386{ 387 DPRINTK((KERN_INFO 388 "%d bits per pixel\n" 389 "%d used bits\n" 390 "%d planes\n" 391 "attributes %08x\n", 392 sti->outptr.bits_per_pixel, 393 sti->outptr.bits_used, 394 sti->outptr.planes, 395 sti->outptr.attributes)); 396} 397 398static int __devinit 399sti_init_glob_cfg(struct sti_struct *sti, 400 unsigned long rom_address, unsigned long hpa) 401{ 402 struct sti_glob_cfg *glob_cfg; 403 struct sti_glob_cfg_ext *glob_cfg_ext; 404 void *save_addr; 405 void *sti_mem_addr; 406 const int save_addr_size = 1024; 407 int i; 408 409 if (!sti->sti_mem_request) 410 sti->sti_mem_request = 256; /* STI default */ 411 412 glob_cfg = kzalloc(sizeof(*sti->glob_cfg), GFP_KERNEL); 413 glob_cfg_ext = kzalloc(sizeof(*glob_cfg_ext), GFP_KERNEL); 414 save_addr = kzalloc(save_addr_size, GFP_KERNEL); 415 sti_mem_addr = kzalloc(sti->sti_mem_request, GFP_KERNEL); 416 417 if (!(glob_cfg && glob_cfg_ext && save_addr && sti_mem_addr)) { 418 kfree(glob_cfg); 419 kfree(glob_cfg_ext); 420 kfree(save_addr); 421 kfree(sti_mem_addr); 422 return -ENOMEM; 423 } 424 425 glob_cfg->ext_ptr = STI_PTR(glob_cfg_ext); 426 glob_cfg->save_addr = STI_PTR(save_addr); 427 for (i=0; i<8; i++) { 428 unsigned long newhpa, len; 429 430 if (sti->pd) { 431 unsigned char offs = sti->rm_entry[i]; 432 433 if (offs == 0) 434 continue; 435 if (offs != PCI_ROM_ADDRESS && 436 (offs < PCI_BASE_ADDRESS_0 || 437 offs > PCI_BASE_ADDRESS_5)) { 438 printk (KERN_WARNING 439 "STI pci region mapping for region %d (%02x) can't be mapped\n", 440 i,sti->rm_entry[i]); 441 continue; 442 } 443 newhpa = pci_resource_start (sti->pd, (offs - PCI_BASE_ADDRESS_0) / 4); 444 } else 445 newhpa = (i == 0) ? rom_address : hpa; 446 447 sti->regions_phys[i] = 448 REGION_OFFSET_TO_PHYS(sti->regions[i], newhpa); 449 450 len = sti->regions[i].region_desc.length * 4096; 451 if (len) 452 glob_cfg->region_ptrs[i] = sti->regions_phys[i]; 453 454 DPRINTK(("region #%d: phys %08lx, region_ptr %08x, len=%lukB, " 455 "btlb=%d, sysonly=%d, cache=%d, last=%d\n", 456 i, sti->regions_phys[i], glob_cfg->region_ptrs[i], 457 len/1024, 458 sti->regions[i].region_desc.btlb, 459 sti->regions[i].region_desc.sys_only, 460 sti->regions[i].region_desc.cache, 461 sti->regions[i].region_desc.last)); 462 463 /* last entry reached ? */ 464 if (sti->regions[i].region_desc.last) 465 break; 466 } 467 468 if (++i<8 && sti->regions[i].region) 469 printk(KERN_WARNING "%s: *future ptr (0x%8x) not yet supported !\n", 470 __FILE__, sti->regions[i].region); 471 472 glob_cfg_ext->sti_mem_addr = STI_PTR(sti_mem_addr); 473 474 sti->glob_cfg = glob_cfg; 475 476 return 0; 477} 478 479#ifdef CONFIG_FB 480static struct sti_cooked_font __devinit 481*sti_select_fbfont(struct sti_cooked_rom *cooked_rom, const char *fbfont_name) 482{ 483 const struct font_desc *fbfont; 484 unsigned int size, bpc; 485 void *dest; 486 struct sti_rom_font *nf; 487 struct sti_cooked_font *cooked_font; 488 489 if (!fbfont_name || !strlen(fbfont_name)) 490 return NULL; 491 fbfont = find_font(fbfont_name); 492 if (!fbfont) 493 fbfont = get_default_font(1024,768, ~(u32)0, ~(u32)0); 494 if (!fbfont) 495 return NULL; 496 497 DPRINTK((KERN_DEBUG "selected %dx%d fb-font %s\n", 498 fbfont->width, fbfont->height, fbfont->name)); 499 500 bpc = ((fbfont->width+7)/8) * fbfont->height; 501 size = bpc * 256; 502 size += sizeof(struct sti_rom_font); 503 504 nf = kzalloc(size, GFP_KERNEL); 505 if (!nf) 506 return NULL; 507 508 nf->first_char = 0; 509 nf->last_char = 255; 510 nf->width = fbfont->width; 511 nf->height = fbfont->height; 512 nf->font_type = STI_FONT_HPROMAN8; 513 nf->bytes_per_char = bpc; 514 nf->next_font = 0; 515 nf->underline_height = 1; 516 nf->underline_pos = fbfont->height - nf->underline_height; 517 518 dest = nf; 519 dest += sizeof(struct sti_rom_font); 520 memcpy(dest, fbfont->data, bpc*256); 521 522 cooked_font = kzalloc(sizeof(*cooked_font), GFP_KERNEL); 523 if (!cooked_font) { 524 kfree(nf); 525 return NULL; 526 } 527 528 cooked_font->raw = nf; 529 cooked_font->next_font = NULL; 530 531 cooked_rom->font_start = cooked_font; 532 533 return cooked_font; 534} 535#else 536static struct sti_cooked_font __devinit 537*sti_select_fbfont(struct sti_cooked_rom *cooked_rom, const char *fbfont_name) 538{ 539 return NULL; 540} 541#endif 542 543static struct sti_cooked_font __devinit 544*sti_select_font(struct sti_cooked_rom *rom, 545 int (*search_font_fnc)(struct sti_cooked_rom *, int, int)) 546{ 547 struct sti_cooked_font *font; 548 int i; 549 int index = num_sti_roms; 550 551 /* check for framebuffer-font first */ 552 if ((font = sti_select_fbfont(rom, font_name[index]))) 553 return font; 554 555 if (font_width[index] && font_height[index]) 556 font_index[index] = search_font_fnc(rom, 557 font_height[index], font_width[index]); 558 559 for (font = rom->font_start, i = font_index[index]; 560 font && (i > 0); 561 font = font->next_font, i--); 562 563 if (font) 564 return font; 565 else 566 return rom->font_start; 567} 568 569 570static void __devinit 571sti_dump_rom(struct sti_rom *rom) 572{ 573 printk(KERN_INFO " id %04x-%04x, conforms to spec rev. %d.%02x\n", 574 rom->graphics_id[0], 575 rom->graphics_id[1], 576 rom->revno[0] >> 4, 577 rom->revno[0] & 0x0f); 578 DPRINTK((" supports %d monitors\n", rom->num_mons)); 579 DPRINTK((" font start %08x\n", rom->font_start)); 580 DPRINTK((" region list %08x\n", rom->region_list)); 581 DPRINTK((" init_graph %08x\n", rom->init_graph)); 582 DPRINTK((" bus support %02x\n", rom->bus_support)); 583 DPRINTK((" ext bus support %02x\n", rom->ext_bus_support)); 584 DPRINTK((" alternate code type %d\n", rom->alt_code_type)); 585} 586 587 588static int __devinit 589sti_cook_fonts(struct sti_cooked_rom *cooked_rom, 590 struct sti_rom *raw_rom) 591{ 592 struct sti_rom_font *raw_font, *font_start; 593 struct sti_cooked_font *cooked_font; 594 595 cooked_font = kzalloc(sizeof(*cooked_font), GFP_KERNEL); 596 if (!cooked_font) 597 return 0; 598 599 cooked_rom->font_start = cooked_font; 600 601 raw_font = ((void *)raw_rom) + (raw_rom->font_start); 602 603 font_start = raw_font; 604 cooked_font->raw = raw_font; 605 606 while (raw_font->next_font) { 607 raw_font = ((void *)font_start) + (raw_font->next_font); 608 609 cooked_font->next_font = kzalloc(sizeof(*cooked_font), GFP_KERNEL); 610 if (!cooked_font->next_font) 611 return 1; 612 613 cooked_font = cooked_font->next_font; 614 615 cooked_font->raw = raw_font; 616 } 617 618 cooked_font->next_font = NULL; 619 return 1; 620} 621 622 623static int __devinit 624sti_search_font(struct sti_cooked_rom *rom, int height, int width) 625{ 626 struct sti_cooked_font *font; 627 int i = 0; 628 629 for (font = rom->font_start; font; font = font->next_font, i++) { 630 if ((font->raw->width == width) && 631 (font->raw->height == height)) 632 return i; 633 } 634 return 0; 635} 636 637#define BMODE_RELOCATE(offset) offset = (offset) / 4; 638#define BMODE_LAST_ADDR_OFFS 0x50 639 640static void * __devinit 641sti_bmode_font_raw(struct sti_cooked_font *f) 642{ 643 unsigned char *n, *p, *q; 644 int size = f->raw->bytes_per_char*256+sizeof(struct sti_rom_font); 645 646 n = kzalloc (4*size, GFP_KERNEL); 647 if (!n) 648 return NULL; 649 p = n + 3; 650 q = (unsigned char *)f->raw; 651 while (size--) { 652 *p = *q++; 653 p+=4; 654 } 655 return n + 3; 656} 657 658static void __devinit 659sti_bmode_rom_copy(unsigned long base, unsigned long count, void *dest) 660{ 661 unsigned long dest_start = (unsigned long) dest; 662 663 while (count) { 664 count--; 665 *(u8 *)dest = gsc_readl(base); 666 base += 4; 667 dest++; 668 } 669 670 sti_flush(dest_start, (unsigned long)dest); 671} 672 673static struct sti_rom * __devinit 674sti_get_bmode_rom (unsigned long address) 675{ 676 struct sti_rom *raw; 677 u32 size; 678 struct sti_rom_font *raw_font, *font_start; 679 680 sti_bmode_rom_copy(address + BMODE_LAST_ADDR_OFFS, sizeof(size), &size); 681 682 size = (size+3) / 4; 683 raw = kmalloc(size, GFP_KERNEL); 684 if (raw) { 685 sti_bmode_rom_copy(address, size, raw); 686 memmove (&raw->res004, &raw->type[0], 0x3c); 687 raw->type[3] = raw->res004; 688 689 BMODE_RELOCATE (raw->region_list); 690 BMODE_RELOCATE (raw->font_start); 691 692 BMODE_RELOCATE (raw->init_graph); 693 BMODE_RELOCATE (raw->state_mgmt); 694 BMODE_RELOCATE (raw->font_unpmv); 695 BMODE_RELOCATE (raw->block_move); 696 BMODE_RELOCATE (raw->inq_conf); 697 698 raw_font = ((void *)raw) + raw->font_start; 699 font_start = raw_font; 700 701 while (raw_font->next_font) { 702 BMODE_RELOCATE (raw_font->next_font); 703 raw_font = ((void *)font_start) + raw_font->next_font; 704 } 705 } 706 return raw; 707} 708 709static struct sti_rom __devinit *sti_get_wmode_rom(unsigned long address) 710{ 711 struct sti_rom *raw; 712 unsigned long size; 713 714 /* read the ROM size directly from the struct in ROM */ 715 size = gsc_readl(address + offsetof(struct sti_rom,last_addr)); 716 717 raw = kmalloc(size, GFP_KERNEL); 718 if (raw) 719 sti_rom_copy(address, size, raw); 720 721 return raw; 722} 723 724static int __devinit sti_read_rom(int wordmode, struct sti_struct *sti, 725 unsigned long address) 726{ 727 struct sti_cooked_rom *cooked; 728 struct sti_rom *raw = NULL; 729 unsigned long revno; 730 731 cooked = kmalloc(sizeof *cooked, GFP_KERNEL); 732 if (!cooked) 733 goto out_err; 734 735 if (wordmode) 736 raw = sti_get_wmode_rom (address); 737 else 738 raw = sti_get_bmode_rom (address); 739 740 if (!raw) 741 goto out_err; 742 743 if (!sti_cook_fonts(cooked, raw)) { 744 printk(KERN_ERR "No font found for STI at %08lx\n", address); 745 goto out_err; 746 } 747 748 if (raw->region_list) 749 memcpy(sti->regions, ((void *)raw)+raw->region_list, sizeof(sti->regions)); 750 751 address = (unsigned long) STI_PTR(raw); 752 753 sti->font_unpmv = address + (raw->font_unpmv & 0x03ffffff); 754 sti->block_move = address + (raw->block_move & 0x03ffffff); 755 sti->init_graph = address + (raw->init_graph & 0x03ffffff); 756 sti->inq_conf = address + (raw->inq_conf & 0x03ffffff); 757 758 sti->rom = cooked; 759 sti->rom->raw = raw; 760 761 sti->font = sti_select_font(sti->rom, sti_search_font); 762 sti->font_width = sti->font->raw->width; 763 sti->font_height = sti->font->raw->height; 764 if (!wordmode) 765 sti->font->raw = sti_bmode_font_raw(sti->font); 766 767 sti->sti_mem_request = raw->sti_mem_req; 768 sti->graphics_id[0] = raw->graphics_id[0]; 769 sti->graphics_id[1] = raw->graphics_id[1]; 770 771 sti_dump_rom(raw); 772 773 /* check if the ROM routines in this card are compatible */ 774 if (wordmode || sti->graphics_id[1] != 0x09A02587) 775 goto ok; 776 777 revno = (raw->revno[0] << 8) | raw->revno[1]; 778 779 switch (sti->graphics_id[0]) { 780 case S9000_ID_HCRX: 781 /* HyperA or HyperB ? */ 782 if (revno == 0x8408 || revno == 0x840b) 783 goto msg_not_supported; 784 break; 785 case CRT_ID_THUNDER: 786 if (revno == 0x8509) 787 goto msg_not_supported; 788 break; 789 case CRT_ID_THUNDER2: 790 if (revno == 0x850c) 791 goto msg_not_supported; 792 } 793ok: 794 return 1; 795 796msg_not_supported: 797 printk(KERN_ERR "Sorry, this GSC/STI card is not yet supported.\n"); 798 printk(KERN_ERR "Please see http://parisc-linux.org/faq/" 799 "graphics-howto.html for more info.\n"); 800 /* fall through */ 801out_err: 802 kfree(raw); 803 kfree(cooked); 804 return 0; 805} 806 807static struct sti_struct * __devinit 808sti_try_rom_generic(unsigned long address, unsigned long hpa, struct pci_dev *pd) 809{ 810 struct sti_struct *sti; 811 int ok; 812 u32 sig; 813 814 if (num_sti_roms >= MAX_STI_ROMS) { 815 printk(KERN_WARNING "maximum number of STI ROMS reached !\n"); 816 return NULL; 817 } 818 819 sti = kzalloc(sizeof(*sti), GFP_KERNEL); 820 if (!sti) { 821 printk(KERN_ERR "Not enough memory !\n"); 822 return NULL; 823 } 824 825 spin_lock_init(&sti->lock); 826 827test_rom: 828 /* if we can't read the ROM, bail out early. Not being able 829 * to read the hpa is okay, for romless sti */ 830 if (pdc_add_valid(address)) 831 goto out_err; 832 833 sig = gsc_readl(address); 834 835 /* check for a PCI ROM structure */ 836 if ((le32_to_cpu(sig)==0xaa55)) { 837 unsigned int i, rm_offset; 838 u32 *rm; 839 i = gsc_readl(address+0x04); 840 if (i != 1) { 841 /* The ROM could have multiple architecture 842 * dependent images (e.g. i386, parisc,...) */ 843 printk(KERN_WARNING 844 "PCI ROM is not a STI ROM type image (0x%8x)\n", i); 845 goto out_err; 846 } 847 848 sti->pd = pd; 849 850 i = gsc_readl(address+0x0c); 851 DPRINTK(("PCI ROM size (from header) = %d kB\n", 852 le16_to_cpu(i>>16)*512/1024)); 853 rm_offset = le16_to_cpu(i & 0xffff); 854 if (rm_offset) { 855 /* read 16 bytes from the pci region mapper array */ 856 rm = (u32*) &sti->rm_entry; 857 *rm++ = gsc_readl(address+rm_offset+0x00); 858 *rm++ = gsc_readl(address+rm_offset+0x04); 859 *rm++ = gsc_readl(address+rm_offset+0x08); 860 *rm++ = gsc_readl(address+rm_offset+0x0c); 861 DPRINTK(("PCI region Mapper offset = %08x: ", 862 rm_offset)); 863 for (i=0; i<16; i++) 864 DPRINTK(("%02x ", sti->rm_entry[i])); 865 DPRINTK(("\n")); 866 } 867 868 address += le32_to_cpu(gsc_readl(address+8)); 869 DPRINTK(("sig %04x, PCI STI ROM at %08lx\n", sig, address)); 870 goto test_rom; 871 } 872 873 ok = 0; 874 875 if ((sig & 0xff) == 0x01) { 876 DPRINTK((" byte mode ROM at %08lx, hpa at %08lx\n", 877 address, hpa)); 878 ok = sti_read_rom(0, sti, address); 879 } 880 881 if ((sig & 0xffff) == 0x0303) { 882 DPRINTK((" word mode ROM at %08lx, hpa at %08lx\n", 883 address, hpa)); 884 ok = sti_read_rom(1, sti, address); 885 } 886 887 if (!ok) 888 goto out_err; 889 890 if (sti_init_glob_cfg(sti, address, hpa)) 891 goto out_err; /* not enough memory */ 892 893 /* disable STI PCI ROM. ROM and card RAM overlap and 894 * leaving it enabled would force HPMCs 895 */ 896 if (sti->pd) { 897 unsigned long rom_base; 898 rom_base = pci_resource_start(sti->pd, PCI_ROM_RESOURCE); 899 pci_write_config_dword(sti->pd, PCI_ROM_ADDRESS, rom_base & ~PCI_ROM_ADDRESS_ENABLE); 900 DPRINTK((KERN_DEBUG "STI PCI ROM disabled\n")); 901 } 902 903 if (sti_init_graph(sti)) 904 goto out_err; 905 906 sti_inq_conf(sti); 907 sti_dump_globcfg(sti->glob_cfg, sti->sti_mem_request); 908 sti_dump_outptr(sti); 909 910 printk(KERN_INFO " graphics card name: %s\n", sti->outptr.dev_name ); 911 912 sti_roms[num_sti_roms] = sti; 913 num_sti_roms++; 914 915 return sti; 916 917out_err: 918 kfree(sti); 919 return NULL; 920} 921 922static void __devinit sticore_check_for_default_sti(struct sti_struct *sti, char *path) 923{ 924 if (strcmp (path, default_sti_path) == 0) 925 default_sti = sti; 926} 927 928/* 929 * on newer systems PDC gives the address of the ROM 930 * in the additional address field addr[1] while on 931 * older Systems the PDC stores it in page0->proc_sti 932 */ 933static int __devinit sticore_pa_init(struct parisc_device *dev) 934{ 935 char pa_path[21]; 936 struct sti_struct *sti = NULL; 937 int hpa = dev->hpa.start; 938 939 if (dev->num_addrs && dev->addr[0]) 940 sti = sti_try_rom_generic(dev->addr[0], hpa, NULL); 941 if (!sti) 942 sti = sti_try_rom_generic(hpa, hpa, NULL); 943 if (!sti) 944 sti = sti_try_rom_generic(PAGE0->proc_sti, hpa, NULL); 945 if (!sti) 946 return 1; 947 948 print_pa_hwpath(dev, pa_path); 949 sticore_check_for_default_sti(sti, pa_path); 950 return 0; 951} 952 953 954static int __devinit sticore_pci_init(struct pci_dev *pd, 955 const struct pci_device_id *ent) 956{ 957#ifdef CONFIG_PCI 958 unsigned long fb_base, rom_base; 959 unsigned int fb_len, rom_len; 960 int err; 961 struct sti_struct *sti; 962 963 err = pci_enable_device(pd); 964 if (err < 0) { 965 dev_err(&pd->dev, "Cannot enable PCI device\n"); 966 return err; 967 } 968 969 fb_base = pci_resource_start(pd, 0); 970 fb_len = pci_resource_len(pd, 0); 971 rom_base = pci_resource_start(pd, PCI_ROM_RESOURCE); 972 rom_len = pci_resource_len(pd, PCI_ROM_RESOURCE); 973 if (rom_base) { 974 pci_write_config_dword(pd, PCI_ROM_ADDRESS, rom_base | PCI_ROM_ADDRESS_ENABLE); 975 DPRINTK((KERN_DEBUG "STI PCI ROM enabled at 0x%08lx\n", rom_base)); 976 } 977 978 printk(KERN_INFO "STI PCI graphic ROM found at %08lx (%u kB), fb at %08lx (%u MB)\n", 979 rom_base, rom_len/1024, fb_base, fb_len/1024/1024); 980 981 DPRINTK((KERN_DEBUG "Trying PCI STI ROM at %08lx, PCI hpa at %08lx\n", 982 rom_base, fb_base)); 983 984 sti = sti_try_rom_generic(rom_base, fb_base, pd); 985 if (sti) { 986 char pa_path[30]; 987 print_pci_hwpath(pd, pa_path); 988 sticore_check_for_default_sti(sti, pa_path); 989 } 990 991 if (!sti) { 992 printk(KERN_WARNING "Unable to handle STI device '%s'\n", 993 pci_name(pd)); 994 return -ENODEV; 995 } 996#endif /* CONFIG_PCI */ 997 998 return 0; 999} 1000 1001 1002static void __devexit sticore_pci_remove(struct pci_dev *pd) 1003{ 1004 BUG(); 1005} 1006 1007 1008static struct pci_device_id sti_pci_tbl[] = { 1009 { PCI_DEVICE(PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_VISUALIZE_EG) }, 1010 { PCI_DEVICE(PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_VISUALIZE_FX6) }, 1011 { PCI_DEVICE(PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_VISUALIZE_FX4) }, 1012 { PCI_DEVICE(PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_VISUALIZE_FX2) }, 1013 { PCI_DEVICE(PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_VISUALIZE_FXE) }, 1014 { 0, } /* terminate list */ 1015}; 1016MODULE_DEVICE_TABLE(pci, sti_pci_tbl); 1017 1018static struct pci_driver pci_sti_driver = { 1019 .name = "sti", 1020 .id_table = sti_pci_tbl, 1021 .probe = sticore_pci_init, 1022 .remove = sticore_pci_remove, 1023}; 1024 1025static struct parisc_device_id sti_pa_tbl[] = { 1026 { HPHW_FIO, HVERSION_REV_ANY_ID, HVERSION_ANY_ID, 0x00077 }, 1027 { HPHW_FIO, HVERSION_REV_ANY_ID, HVERSION_ANY_ID, 0x00085 }, 1028 { 0, } 1029}; 1030 1031static struct parisc_driver pa_sti_driver = { 1032 .name = "sti", 1033 .id_table = sti_pa_tbl, 1034 .probe = sticore_pa_init, 1035}; 1036 1037 1038/* 1039 * sti_init_roms() - detects all STI ROMs and stores them in sti_roms[] 1040 */ 1041 1042static int sticore_initialized __read_mostly; 1043 1044static void __devinit sti_init_roms(void) 1045{ 1046 if (sticore_initialized) 1047 return; 1048 1049 sticore_initialized = 1; 1050 1051 printk(KERN_INFO "STI GSC/PCI core graphics driver " 1052 STI_DRIVERVERSION "\n"); 1053 1054 /* Register drivers for native & PCI cards */ 1055 register_parisc_driver(&pa_sti_driver); 1056 WARN_ON(pci_register_driver(&pci_sti_driver)); 1057 1058 /* if we didn't find the given default sti, take the first one */ 1059 if (!default_sti) 1060 default_sti = sti_roms[0]; 1061 1062} 1063 1064/* 1065 * index = 0 gives default sti 1066 * index > 0 gives other stis in detection order 1067 */ 1068struct sti_struct * sti_get_rom(unsigned int index) 1069{ 1070 if (!sticore_initialized) 1071 sti_init_roms(); 1072 1073 if (index == 0) 1074 return default_sti; 1075 1076 if (index > num_sti_roms) 1077 return NULL; 1078 1079 return sti_roms[index-1]; 1080} 1081EXPORT_SYMBOL(sti_get_rom); 1082 1083MODULE_AUTHOR("Philipp Rumpf, Helge Deller, Thomas Bogendoerfer"); 1084MODULE_DESCRIPTION("Core STI driver for HP's NGLE series graphics cards in HP PARISC machines"); 1085MODULE_LICENSE("GPL v2"); 1086