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