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/page.h> 26#include <asm/parisc-device.h> 27#include <asm/pdc.h> 28#include <asm/cacheflush.h> 29#include <asm/grfioctl.h> 30 31#include "../sticore.h" 32 33#define STI_DRIVERVERSION "Version 0.9a" 34 35static struct sti_struct *default_sti __read_mostly; 36 37/* number of STI ROMS found and their ptrs to each struct */ 38static int num_sti_roms __read_mostly; 39static struct sti_struct *sti_roms[MAX_STI_ROMS] __read_mostly; 40 41 42/* The colour indices used by STI are 43 * 0 - Black 44 * 1 - White 45 * 2 - Red 46 * 3 - Yellow/Brown 47 * 4 - Green 48 * 5 - Cyan 49 * 6 - Blue 50 * 7 - Magenta 51 * 52 * So we have the same colours as VGA (basically one bit each for R, G, B), 53 * but have to translate them, anyway. */ 54 55static const u8 col_trans[8] = { 56 0, 6, 4, 5, 57 2, 7, 3, 1 58}; 59 60#define c_fg(sti, c) col_trans[((c>> 8) & 7)] 61#define c_bg(sti, c) col_trans[((c>>11) & 7)] 62#define c_index(sti, c) ((c) & 0xff) 63 64static const struct sti_init_flags default_init_flags = { 65 .wait = STI_WAIT, 66 .reset = 1, 67 .text = 1, 68 .nontext = 1, 69 .no_chg_bet = 1, 70 .no_chg_bei = 1, 71 .init_cmap_tx = 1, 72}; 73 74static int sti_init_graph(struct sti_struct *sti) 75{ 76 struct sti_init_inptr_ext inptr_ext = { 0, }; 77 struct sti_init_inptr inptr = { 78 .text_planes = 3, /* # of text planes (max 3 for STI) */ 79 .ext_ptr = STI_PTR(&inptr_ext) 80 }; 81 struct sti_init_outptr outptr = { 0, }; 82 unsigned long flags; 83 int ret; 84 85 spin_lock_irqsave(&sti->lock, flags); 86 87 ret = STI_CALL(sti->init_graph, &default_init_flags, &inptr, 88 &outptr, sti->glob_cfg); 89 90 spin_unlock_irqrestore(&sti->lock, flags); 91 92 if (ret < 0) { 93 printk(KERN_ERR "STI init_graph failed (ret %d, errno %d)\n",ret,outptr.errno); 94 return -1; 95 } 96 97 sti->text_planes = outptr.text_planes; 98 return 0; 99} 100 101static const struct sti_conf_flags default_conf_flags = { 102 .wait = STI_WAIT, 103}; 104 105static void sti_inq_conf(struct sti_struct *sti) 106{ 107 struct sti_conf_inptr inptr = { 0, }; 108 unsigned long flags; 109 s32 ret; 110 111 sti->outptr.ext_ptr = STI_PTR(&sti->outptr_ext); 112 113 do { 114 spin_lock_irqsave(&sti->lock, flags); 115 ret = STI_CALL(sti->inq_conf, &default_conf_flags, 116 &inptr, &sti->outptr, sti->glob_cfg); 117 spin_unlock_irqrestore(&sti->lock, flags); 118 } while (ret == 1); 119} 120 121static const struct sti_font_flags default_font_flags = { 122 .wait = STI_WAIT, 123 .non_text = 0, 124}; 125 126void 127sti_putc(struct sti_struct *sti, int c, int y, int x) 128{ 129 struct sti_font_inptr inptr = { 130 .font_start_addr= STI_PTR(sti->font->raw), 131 .index = c_index(sti, c), 132 .fg_color = c_fg(sti, c), 133 .bg_color = c_bg(sti, c), 134 .dest_x = x * sti->font_width, 135 .dest_y = y * sti->font_height, 136 }; 137 struct sti_font_outptr outptr = { 0, }; 138 s32 ret; 139 unsigned long flags; 140 141 do { 142 spin_lock_irqsave(&sti->lock, flags); 143 ret = STI_CALL(sti->font_unpmv, &default_font_flags, 144 &inptr, &outptr, sti->glob_cfg); 145 spin_unlock_irqrestore(&sti->lock, flags); 146 } while (ret == 1); 147} 148 149static const struct sti_blkmv_flags clear_blkmv_flags = { 150 .wait = STI_WAIT, 151 .color = 1, 152 .clear = 1, 153}; 154 155void 156sti_set(struct sti_struct *sti, int src_y, int src_x, 157 int height, int width, u8 color) 158{ 159 struct sti_blkmv_inptr inptr = { 160 .fg_color = color, 161 .bg_color = color, 162 .src_x = src_x, 163 .src_y = src_y, 164 .dest_x = src_x, 165 .dest_y = src_y, 166 .width = width, 167 .height = height, 168 }; 169 struct sti_blkmv_outptr outptr = { 0, }; 170 s32 ret; 171 unsigned long flags; 172 173 do { 174 spin_lock_irqsave(&sti->lock, flags); 175 ret = STI_CALL(sti->block_move, &clear_blkmv_flags, 176 &inptr, &outptr, sti->glob_cfg); 177 spin_unlock_irqrestore(&sti->lock, flags); 178 } while (ret == 1); 179} 180 181void 182sti_clear(struct sti_struct *sti, int src_y, int src_x, 183 int height, int width, int c) 184{ 185 struct sti_blkmv_inptr inptr = { 186 .fg_color = c_fg(sti, c), 187 .bg_color = c_bg(sti, c), 188 .src_x = src_x * sti->font_width, 189 .src_y = src_y * sti->font_height, 190 .dest_x = src_x * sti->font_width, 191 .dest_y = src_y * sti->font_height, 192 .width = width * sti->font_width, 193 .height = height* sti->font_height, 194 }; 195 struct sti_blkmv_outptr outptr = { 0, }; 196 s32 ret; 197 unsigned long flags; 198 199 do { 200 spin_lock_irqsave(&sti->lock, flags); 201 ret = STI_CALL(sti->block_move, &clear_blkmv_flags, 202 &inptr, &outptr, sti->glob_cfg); 203 spin_unlock_irqrestore(&sti->lock, flags); 204 } while (ret == 1); 205} 206 207static const struct sti_blkmv_flags default_blkmv_flags = { 208 .wait = STI_WAIT, 209}; 210 211void 212sti_bmove(struct sti_struct *sti, int src_y, int src_x, 213 int dst_y, int dst_x, int height, int width) 214{ 215 struct sti_blkmv_inptr inptr = { 216 .src_x = src_x * sti->font_width, 217 .src_y = src_y * sti->font_height, 218 .dest_x = dst_x * sti->font_width, 219 .dest_y = dst_y * sti->font_height, 220 .width = width * sti->font_width, 221 .height = height* sti->font_height, 222 }; 223 struct sti_blkmv_outptr outptr = { 0, }; 224 s32 ret; 225 unsigned long flags; 226 227 do { 228 spin_lock_irqsave(&sti->lock, flags); 229 ret = STI_CALL(sti->block_move, &default_blkmv_flags, 230 &inptr, &outptr, sti->glob_cfg); 231 spin_unlock_irqrestore(&sti->lock, flags); 232 } while (ret == 1); 233} 234 235 236static void sti_flush(unsigned long start, unsigned long end) 237{ 238 flush_icache_range(start, end); 239} 240 241static void __devinit sti_rom_copy(unsigned long base, unsigned long count, 242 void *dest) 243{ 244 unsigned long dest_start = (unsigned long) dest; 245 246 /* this still needs to be revisited (see arch/parisc/mm/init.c:246) ! */ 247 while (count >= 4) { 248 count -= 4; 249 *(u32 *)dest = gsc_readl(base); 250 base += 4; 251 dest += 4; 252 } 253 while (count) { 254 count--; 255 *(u8 *)dest = gsc_readb(base); 256 base++; 257 dest++; 258 } 259 260 sti_flush(dest_start, (unsigned long)dest); 261} 262 263 264 265 266static char default_sti_path[21] __read_mostly; 267 268#ifndef MODULE 269static int __devinit sti_setup(char *str) 270{ 271 if (str) 272 strlcpy (default_sti_path, str, sizeof (default_sti_path)); 273 274 return 1; 275} 276 277/* Assuming the machine has multiple STI consoles (=graphic cards) which 278 * all get detected by sticon, the user may define with the linux kernel 279 * parameter sti=<x> which of them will be the initial boot-console. 280 * <x> is a number between 0 and MAX_STI_ROMS, with 0 as the default 281 * STI screen. 282 */ 283__setup("sti=", sti_setup); 284#endif 285 286 287 288static char __devinitdata *font_name[MAX_STI_ROMS] = { "VGA8x16", }; 289static int __devinitdata font_index[MAX_STI_ROMS], 290 font_height[MAX_STI_ROMS], 291 font_width[MAX_STI_ROMS]; 292#ifndef MODULE 293static int __devinit sti_font_setup(char *str) 294{ 295 char *x; 296 int i = 0; 297 298 /* we accept sti_font=VGA8x16, sti_font=10x20, sti_font=10*20 299 * or sti_font=7 style command lines. */ 300 301 while (i<MAX_STI_ROMS && str && *str) { 302 if (*str>='0' && *str<='9') { 303 if ((x = strchr(str, 'x')) || (x = strchr(str, '*'))) { 304 font_height[i] = simple_strtoul(str, NULL, 0); 305 font_width[i] = simple_strtoul(x+1, NULL, 0); 306 } else { 307 font_index[i] = simple_strtoul(str, NULL, 0); 308 } 309 } else { 310 font_name[i] = str; /* fb font name */ 311 } 312 313 if ((x = strchr(str, ','))) 314 *x++ = 0; 315 str = x; 316 317 i++; 318 } 319 320 return 1; 321} 322 323/* The optional linux kernel parameter "sti_font" defines which font 324 * should be used by the sticon driver to draw characters to the screen. 325 * Possible values are: 326 * - sti_font=<fb_fontname>: 327 * <fb_fontname> is the name of one of the linux-kernel built-in 328 * framebuffer font names (e.g. VGA8x16, SUN22x18). 329 * This is only available if the fonts have been statically compiled 330 * in with e.g. the CONFIG_FONT_8x16 or CONFIG_FONT_SUN12x22 options. 331 * - sti_font=<number> 332 * most STI ROMs have built-in HP specific fonts, which can be selected 333 * by giving the desired number to the sticon driver. 334 * NOTE: This number is machine and STI ROM dependend. 335 * - sti_font=<height>x<width> (e.g. sti_font=16x8) 336 * <height> and <width> gives hints to the height and width of the 337 * font which the user wants. The sticon driver will try to use 338 * a font with this height and width, but if no suitable font is 339 * found, sticon will use the default 8x8 font. 340 */ 341__setup("sti_font=", sti_font_setup); 342#endif 343 344 345 346static void __devinit 347sti_dump_globcfg(struct sti_glob_cfg *glob_cfg, unsigned int sti_mem_request) 348{ 349 struct sti_glob_cfg_ext *cfg; 350 351 DPRINTK((KERN_INFO 352 "%d text planes\n" 353 "%4d x %4d screen resolution\n" 354 "%4d x %4d offscreen\n" 355 "%4d x %4d layout\n" 356 "regions at %08x %08x %08x %08x\n" 357 "regions at %08x %08x %08x %08x\n" 358 "reent_lvl %d\n" 359 "save_addr %08x\n", 360 glob_cfg->text_planes, 361 glob_cfg->onscreen_x, glob_cfg->onscreen_y, 362 glob_cfg->offscreen_x, glob_cfg->offscreen_y, 363 glob_cfg->total_x, glob_cfg->total_y, 364 glob_cfg->region_ptrs[0], glob_cfg->region_ptrs[1], 365 glob_cfg->region_ptrs[2], glob_cfg->region_ptrs[3], 366 glob_cfg->region_ptrs[4], glob_cfg->region_ptrs[5], 367 glob_cfg->region_ptrs[6], glob_cfg->region_ptrs[7], 368 glob_cfg->reent_lvl, 369 glob_cfg->save_addr)); 370 371 /* dump extended cfg */ 372 cfg = PTR_STI((unsigned long)glob_cfg->ext_ptr); 373 DPRINTK(( KERN_INFO 374 "monitor %d\n" 375 "in friendly mode: %d\n" 376 "power consumption %d watts\n" 377 "freq ref %d\n" 378 "sti_mem_addr %08x (size=%d bytes)\n", 379 cfg->curr_mon, 380 cfg->friendly_boot, 381 cfg->power, 382 cfg->freq_ref, 383 cfg->sti_mem_addr, sti_mem_request)); 384} 385 386static void __devinit 387sti_dump_outptr(struct sti_struct *sti) 388{ 389 DPRINTK((KERN_INFO 390 "%d bits per pixel\n" 391 "%d used bits\n" 392 "%d planes\n" 393 "attributes %08x\n", 394 sti->outptr.bits_per_pixel, 395 sti->outptr.bits_used, 396 sti->outptr.planes, 397 sti->outptr.attributes)); 398} 399 400static int __devinit 401sti_init_glob_cfg(struct sti_struct *sti, 402 unsigned long rom_address, unsigned long hpa) 403{ 404 struct sti_glob_cfg *glob_cfg; 405 struct sti_glob_cfg_ext *glob_cfg_ext; 406 void *save_addr; 407 void *sti_mem_addr; 408 const int save_addr_size = 1024; /* XXX */ 409 int i; 410 411 if (!sti->sti_mem_request) 412 sti->sti_mem_request = 256; /* STI default */ 413 414 glob_cfg = kzalloc(sizeof(*sti->glob_cfg), GFP_KERNEL); 415 glob_cfg_ext = kzalloc(sizeof(*glob_cfg_ext), GFP_KERNEL); 416 save_addr = kzalloc(save_addr_size, GFP_KERNEL); 417 sti_mem_addr = kzalloc(sti->sti_mem_request, GFP_KERNEL); 418 419 if (!(glob_cfg && glob_cfg_ext && save_addr && sti_mem_addr)) { 420 kfree(glob_cfg); 421 kfree(glob_cfg_ext); 422 kfree(save_addr); 423 kfree(sti_mem_addr); 424 return -ENOMEM; 425 } 426 427 glob_cfg->ext_ptr = STI_PTR(glob_cfg_ext); 428 glob_cfg->save_addr = STI_PTR(save_addr); 429 for (i=0; i<8; i++) { 430 unsigned long newhpa, len; 431 432 if (sti->pd) { 433 unsigned char offs = sti->rm_entry[i]; 434 435 if (offs == 0) 436 continue; 437 if (offs != PCI_ROM_ADDRESS && 438 (offs < PCI_BASE_ADDRESS_0 || 439 offs > PCI_BASE_ADDRESS_5)) { 440 printk (KERN_WARNING 441 "STI pci region mapping for region %d (%02x) can't be mapped\n", 442 i,sti->rm_entry[i]); 443 continue; 444 } 445 newhpa = pci_resource_start (sti->pd, (offs - PCI_BASE_ADDRESS_0) / 4); 446 } else 447 newhpa = (i == 0) ? rom_address : hpa; 448 449 sti->regions_phys[i] = 450 REGION_OFFSET_TO_PHYS(sti->regions[i], newhpa); 451 452 len = sti->regions[i].region_desc.length * 4096; 453 if (len) 454 glob_cfg->region_ptrs[i] = sti->regions_phys[i]; 455 456 DPRINTK(("region #%d: phys %08lx, region_ptr %08x, len=%lukB, " 457 "btlb=%d, sysonly=%d, cache=%d, last=%d\n", 458 i, sti->regions_phys[i], glob_cfg->region_ptrs[i], 459 len/1024, 460 sti->regions[i].region_desc.btlb, 461 sti->regions[i].region_desc.sys_only, 462 sti->regions[i].region_desc.cache, 463 sti->regions[i].region_desc.last)); 464 465 /* last entry reached ? */ 466 if (sti->regions[i].region_desc.last) 467 break; 468 } 469 470 if (++i<8 && sti->regions[i].region) 471 printk(KERN_WARNING "%s: *future ptr (0x%8x) not yet supported !\n", 472 __FILE__, sti->regions[i].region); 473 474 glob_cfg_ext->sti_mem_addr = STI_PTR(sti_mem_addr); 475 476 sti->glob_cfg = glob_cfg; 477 478 return 0; 479} 480 481#ifdef CONFIG_FB 482static struct sti_cooked_font __devinit 483*sti_select_fbfont(struct sti_cooked_rom *cooked_rom, const char *fbfont_name) 484{ 485 const struct font_desc *fbfont; 486 unsigned int size, bpc; 487 void *dest; 488 struct sti_rom_font *nf; 489 struct sti_cooked_font *cooked_font; 490 491 if (!fbfont_name || !strlen(fbfont_name)) 492 return NULL; 493 fbfont = find_font(fbfont_name); 494 if (!fbfont) 495 fbfont = get_default_font(1024,768, ~(u32)0, ~(u32)0); 496 if (!fbfont) 497 return NULL; 498 499 DPRINTK((KERN_DEBUG "selected %dx%d fb-font %s\n", 500 fbfont->width, fbfont->height, fbfont->name)); 501 502 bpc = ((fbfont->width+7)/8) * fbfont->height; 503 size = bpc * 256; 504 size += sizeof(struct sti_rom_font); 505 506 nf = kzalloc(size, GFP_KERNEL); 507 if (!nf) 508 return NULL; 509 510 nf->first_char = 0; 511 nf->last_char = 255; 512 nf->width = fbfont->width; 513 nf->height = fbfont->height; 514 nf->font_type = STI_FONT_HPROMAN8; 515 nf->bytes_per_char = bpc; 516 nf->next_font = 0; 517 nf->underline_height = 1; 518 nf->underline_pos = fbfont->height - nf->underline_height; 519 520 dest = nf; 521 dest += sizeof(struct sti_rom_font); 522 memcpy(dest, fbfont->data, bpc*256); 523 524 cooked_font = kzalloc(sizeof(*cooked_font), GFP_KERNEL); 525 if (!cooked_font) { 526 kfree(nf); 527 return NULL; 528 } 529 530 cooked_font->raw = nf; 531 cooked_font->next_font = NULL; 532 533 cooked_rom->font_start = cooked_font; 534 535 return cooked_font; 536} 537#else 538static struct sti_cooked_font __devinit 539*sti_select_fbfont(struct sti_cooked_rom *cooked_rom, const char *fbfont_name) 540{ 541 return NULL; 542} 543#endif 544 545static struct sti_cooked_font __devinit 546*sti_select_font(struct sti_cooked_rom *rom, 547 int (*search_font_fnc)(struct sti_cooked_rom *, int, int)) 548{ 549 struct sti_cooked_font *font; 550 int i; 551 int index = num_sti_roms; 552 553 /* check for framebuffer-font first */ 554 if ((font = sti_select_fbfont(rom, font_name[index]))) 555 return font; 556 557 if (font_width[index] && font_height[index]) 558 font_index[index] = search_font_fnc(rom, 559 font_height[index], font_width[index]); 560 561 for (font = rom->font_start, i = font_index[index]; 562 font && (i > 0); 563 font = font->next_font, i--); 564 565 if (font) 566 return font; 567 else 568 return rom->font_start; 569} 570 571 572static void __devinit 573sti_dump_rom(struct sti_rom *rom) 574{ 575 printk(KERN_INFO " id %04x-%04x, conforms to spec rev. %d.%02x\n", 576 rom->graphics_id[0], 577 rom->graphics_id[1], 578 rom->revno[0] >> 4, 579 rom->revno[0] & 0x0f); 580 DPRINTK((" supports %d monitors\n", rom->num_mons)); 581 DPRINTK((" font start %08x\n", rom->font_start)); 582 DPRINTK((" region list %08x\n", rom->region_list)); 583 DPRINTK((" init_graph %08x\n", rom->init_graph)); 584 DPRINTK((" bus support %02x\n", rom->bus_support)); 585 DPRINTK((" ext bus support %02x\n", rom->ext_bus_support)); 586 DPRINTK((" alternate code type %d\n", rom->alt_code_type)); 587} 588 589 590static int __devinit 591sti_cook_fonts(struct sti_cooked_rom *cooked_rom, 592 struct sti_rom *raw_rom) 593{ 594 struct sti_rom_font *raw_font, *font_start; 595 struct sti_cooked_font *cooked_font; 596 597 cooked_font = kzalloc(sizeof(*cooked_font), GFP_KERNEL); 598 if (!cooked_font) 599 return 0; 600 601 cooked_rom->font_start = cooked_font; 602 603 raw_font = ((void *)raw_rom) + (raw_rom->font_start); 604 605 font_start = raw_font; 606 cooked_font->raw = raw_font; 607 608 while (raw_font->next_font) { 609 raw_font = ((void *)font_start) + (raw_font->next_font); 610 611 cooked_font->next_font = kzalloc(sizeof(*cooked_font), GFP_KERNEL); 612 if (!cooked_font->next_font) 613 return 1; 614 615 cooked_font = cooked_font->next_font; 616 617 cooked_font->raw = raw_font; 618 } 619 620 cooked_font->next_font = NULL; 621 return 1; 622} 623 624 625static int __devinit 626sti_search_font(struct sti_cooked_rom *rom, int height, int width) 627{ 628 struct sti_cooked_font *font; 629 int i = 0; 630 631 for (font = rom->font_start; font; font = font->next_font, i++) { 632 if ((font->raw->width == width) && 633 (font->raw->height == height)) 634 return i; 635 } 636 return 0; 637} 638 639#define BMODE_RELOCATE(offset) offset = (offset) / 4; 640#define BMODE_LAST_ADDR_OFFS 0x50 641 642static void * __devinit 643sti_bmode_font_raw(struct sti_cooked_font *f) 644{ 645 unsigned char *n, *p, *q; 646 int size = f->raw->bytes_per_char*256+sizeof(struct sti_rom_font); 647 648 n = kzalloc (4*size, GFP_KERNEL); 649 if (!n) 650 return NULL; 651 p = n + 3; 652 q = (unsigned char *)f->raw; 653 while (size--) { 654 *p = *q++; 655 p+=4; 656 } 657 return n + 3; 658} 659 660static void __devinit 661sti_bmode_rom_copy(unsigned long base, unsigned long count, void *dest) 662{ 663 unsigned long dest_start = (unsigned long) dest; 664 665 while (count) { 666 count--; 667 *(u8 *)dest = gsc_readl(base); 668 base += 4; 669 dest++; 670 } 671 672 sti_flush(dest_start, (unsigned long)dest); 673} 674 675static struct sti_rom * __devinit 676sti_get_bmode_rom (unsigned long address) 677{ 678 struct sti_rom *raw; 679 u32 size; 680 struct sti_rom_font *raw_font, *font_start; 681 682 sti_bmode_rom_copy(address + BMODE_LAST_ADDR_OFFS, sizeof(size), &size); 683 684 size = (size+3) / 4; 685 raw = kmalloc(size, GFP_KERNEL); 686 if (raw) { 687 sti_bmode_rom_copy(address, size, raw); 688 memmove (&raw->res004, &raw->type[0], 0x3c); 689 raw->type[3] = raw->res004; 690 691 BMODE_RELOCATE (raw->region_list); 692 BMODE_RELOCATE (raw->font_start); 693 694 BMODE_RELOCATE (raw->init_graph); 695 BMODE_RELOCATE (raw->state_mgmt); 696 BMODE_RELOCATE (raw->font_unpmv); 697 BMODE_RELOCATE (raw->block_move); 698 BMODE_RELOCATE (raw->inq_conf); 699 700 raw_font = ((void *)raw) + raw->font_start; 701 font_start = raw_font; 702 703 while (raw_font->next_font) { 704 BMODE_RELOCATE (raw_font->next_font); 705 raw_font = ((void *)font_start) + raw_font->next_font; 706 } 707 } 708 return raw; 709} 710 711static struct sti_rom __devinit *sti_get_wmode_rom(unsigned long address) 712{ 713 struct sti_rom *raw; 714 unsigned long size; 715 716 /* read the ROM size directly from the struct in ROM */ 717 size = gsc_readl(address + offsetof(struct sti_rom,last_addr)); 718 719 raw = kmalloc(size, GFP_KERNEL); 720 if (raw) 721 sti_rom_copy(address, size, raw); 722 723 return raw; 724} 725 726static int __devinit sti_read_rom(int wordmode, struct sti_struct *sti, 727 unsigned long address) 728{ 729 struct sti_cooked_rom *cooked; 730 struct sti_rom *raw = NULL; 731 unsigned long revno; 732 733 cooked = kmalloc(sizeof *cooked, GFP_KERNEL); 734 if (!cooked) 735 goto out_err; 736 737 if (wordmode) 738 raw = sti_get_wmode_rom (address); 739 else 740 raw = sti_get_bmode_rom (address); 741 742 if (!raw) 743 goto out_err; 744 745 if (!sti_cook_fonts(cooked, raw)) { 746 printk(KERN_ERR "No font found for STI at %08lx\n", address); 747 goto out_err; 748 } 749 750 if (raw->region_list) 751 memcpy(sti->regions, ((void *)raw)+raw->region_list, sizeof(sti->regions)); 752 753 address = (unsigned long) STI_PTR(raw); 754 755 sti->font_unpmv = address + (raw->font_unpmv & 0x03ffffff); 756 sti->block_move = address + (raw->block_move & 0x03ffffff); 757 sti->init_graph = address + (raw->init_graph & 0x03ffffff); 758 sti->inq_conf = address + (raw->inq_conf & 0x03ffffff); 759 760 sti->rom = cooked; 761 sti->rom->raw = raw; 762 763 sti->font = sti_select_font(sti->rom, sti_search_font); 764 sti->font_width = sti->font->raw->width; 765 sti->font_height = sti->font->raw->height; 766 if (!wordmode) 767 sti->font->raw = sti_bmode_font_raw(sti->font); 768 769 sti->sti_mem_request = raw->sti_mem_req; 770 sti->graphics_id[0] = raw->graphics_id[0]; 771 sti->graphics_id[1] = raw->graphics_id[1]; 772 773 sti_dump_rom(raw); 774 775 /* check if the ROM routines in this card are compatible */ 776 if (wordmode || sti->graphics_id[1] != 0x09A02587) 777 goto ok; 778 779 revno = (raw->revno[0] << 8) | raw->revno[1]; 780 781 switch (sti->graphics_id[0]) { 782 case S9000_ID_HCRX: 783 /* HyperA or HyperB ? */ 784 if (revno == 0x8408 || revno == 0x840b) 785 goto msg_not_supported; 786 break; 787 case CRT_ID_THUNDER: 788 if (revno == 0x8509) 789 goto msg_not_supported; 790 break; 791 case CRT_ID_THUNDER2: 792 if (revno == 0x850c) 793 goto msg_not_supported; 794 } 795ok: 796 return 1; 797 798msg_not_supported: 799 printk(KERN_ERR "Sorry, this GSC/STI card is not yet supported.\n"); 800 printk(KERN_ERR "Please see http://parisc-linux.org/faq/" 801 "graphics-howto.html for more info.\n"); 802 /* fall through */ 803out_err: 804 kfree(raw); 805 kfree(cooked); 806 return 0; 807} 808 809static struct sti_struct * __devinit 810sti_try_rom_generic(unsigned long address, unsigned long hpa, struct pci_dev *pd) 811{ 812 struct sti_struct *sti; 813 int ok; 814 u32 sig; 815 816 if (num_sti_roms >= MAX_STI_ROMS) { 817 printk(KERN_WARNING "maximum number of STI ROMS reached !\n"); 818 return NULL; 819 } 820 821 sti = kzalloc(sizeof(*sti), GFP_KERNEL); 822 if (!sti) { 823 printk(KERN_ERR "Not enough memory !\n"); 824 return NULL; 825 } 826 827 spin_lock_init(&sti->lock); 828 829test_rom: 830 /* if we can't read the ROM, bail out early. Not being able 831 * to read the hpa is okay, for romless sti */ 832 if (pdc_add_valid(address)) 833 goto out_err; 834 835 sig = gsc_readl(address); 836 837 /* check for a PCI ROM structure */ 838 if ((le32_to_cpu(sig)==0xaa55)) { 839 unsigned int i, rm_offset; 840 u32 *rm; 841 i = gsc_readl(address+0x04); 842 if (i != 1) { 843 /* The ROM could have multiple architecture 844 * dependent images (e.g. i386, parisc,...) */ 845 printk(KERN_WARNING 846 "PCI ROM is not a STI ROM type image (0x%8x)\n", i); 847 goto out_err; 848 } 849 850 sti->pd = pd; 851 852 i = gsc_readl(address+0x0c); 853 DPRINTK(("PCI ROM size (from header) = %d kB\n", 854 le16_to_cpu(i>>16)*512/1024)); 855 rm_offset = le16_to_cpu(i & 0xffff); 856 if (rm_offset) { 857 /* read 16 bytes from the pci region mapper array */ 858 rm = (u32*) &sti->rm_entry; 859 *rm++ = gsc_readl(address+rm_offset+0x00); 860 *rm++ = gsc_readl(address+rm_offset+0x04); 861 *rm++ = gsc_readl(address+rm_offset+0x08); 862 *rm++ = gsc_readl(address+rm_offset+0x0c); 863 DPRINTK(("PCI region Mapper offset = %08x: ", 864 rm_offset)); 865 for (i=0; i<16; i++) 866 DPRINTK(("%02x ", sti->rm_entry[i])); 867 DPRINTK(("\n")); 868 } 869 870 address += le32_to_cpu(gsc_readl(address+8)); 871 DPRINTK(("sig %04x, PCI STI ROM at %08lx\n", sig, address)); 872 goto test_rom; 873 } 874 875 ok = 0; 876 877 if ((sig & 0xff) == 0x01) { 878 DPRINTK((" byte mode ROM at %08lx, hpa at %08lx\n", 879 address, hpa)); 880 ok = sti_read_rom(0, sti, address); 881 } 882 883 if ((sig & 0xffff) == 0x0303) { 884 DPRINTK((" word mode ROM at %08lx, hpa at %08lx\n", 885 address, hpa)); 886 ok = sti_read_rom(1, sti, address); 887 } 888 889 if (!ok) 890 goto out_err; 891 892 if (sti_init_glob_cfg(sti, address, hpa)) 893 goto out_err; /* not enough memory */ 894 895 /* disable STI PCI ROM. ROM and card RAM overlap and 896 * leaving it enabled would force HPMCs 897 */ 898 if (sti->pd) { 899 unsigned long rom_base; 900 rom_base = pci_resource_start(sti->pd, PCI_ROM_RESOURCE); 901 pci_write_config_dword(sti->pd, PCI_ROM_ADDRESS, rom_base & ~PCI_ROM_ADDRESS_ENABLE); 902 DPRINTK((KERN_DEBUG "STI PCI ROM disabled\n")); 903 } 904 905 if (sti_init_graph(sti)) 906 goto out_err; 907 908 sti_inq_conf(sti); 909 sti_dump_globcfg(sti->glob_cfg, sti->sti_mem_request); 910 sti_dump_outptr(sti); 911 912 printk(KERN_INFO " graphics card name: %s\n", sti->outptr.dev_name ); 913 914 sti_roms[num_sti_roms] = sti; 915 num_sti_roms++; 916 917 return sti; 918 919out_err: 920 kfree(sti); 921 return NULL; 922} 923 924static void __devinit sticore_check_for_default_sti(struct sti_struct *sti, char *path) 925{ 926 if (strcmp (path, default_sti_path) == 0) 927 default_sti = sti; 928} 929 930/* 931 * on newer systems PDC gives the address of the ROM 932 * in the additional address field addr[1] while on 933 * older Systems the PDC stores it in page0->proc_sti 934 */ 935static int __devinit sticore_pa_init(struct parisc_device *dev) 936{ 937 char pa_path[21]; 938 struct sti_struct *sti = NULL; 939 int hpa = dev->hpa.start; 940 941 if (dev->num_addrs && dev->addr[0]) 942 sti = sti_try_rom_generic(dev->addr[0], hpa, NULL); 943 if (!sti) 944 sti = sti_try_rom_generic(hpa, hpa, NULL); 945 if (!sti) 946 sti = sti_try_rom_generic(PAGE0->proc_sti, hpa, NULL); 947 if (!sti) 948 return 1; 949 950 print_pa_hwpath(dev, pa_path); 951 sticore_check_for_default_sti(sti, pa_path); 952 return 0; 953} 954 955 956static int __devinit sticore_pci_init(struct pci_dev *pd, 957 const struct pci_device_id *ent) 958{ 959#ifdef CONFIG_PCI 960 unsigned long fb_base, rom_base; 961 unsigned int fb_len, rom_len; 962 int err; 963 struct sti_struct *sti; 964 965 err = pci_enable_device(pd); 966 if (err < 0) { 967 dev_err(&pd->dev, "Cannot enable PCI device\n"); 968 return err; 969 } 970 971 fb_base = pci_resource_start(pd, 0); 972 fb_len = pci_resource_len(pd, 0); 973 rom_base = pci_resource_start(pd, PCI_ROM_RESOURCE); 974 rom_len = pci_resource_len(pd, PCI_ROM_RESOURCE); 975 if (rom_base) { 976 pci_write_config_dword(pd, PCI_ROM_ADDRESS, rom_base | PCI_ROM_ADDRESS_ENABLE); 977 DPRINTK((KERN_DEBUG "STI PCI ROM enabled at 0x%08lx\n", rom_base)); 978 } 979 980 printk(KERN_INFO "STI PCI graphic ROM found at %08lx (%u kB), fb at %08lx (%u MB)\n", 981 rom_base, rom_len/1024, fb_base, fb_len/1024/1024); 982 983 DPRINTK((KERN_DEBUG "Trying PCI STI ROM at %08lx, PCI hpa at %08lx\n", 984 rom_base, fb_base)); 985 986 sti = sti_try_rom_generic(rom_base, fb_base, pd); 987 if (sti) { 988 char pa_path[30]; 989 print_pci_hwpath(pd, pa_path); 990 sticore_check_for_default_sti(sti, pa_path); 991 } 992 993 if (!sti) { 994 printk(KERN_WARNING "Unable to handle STI device '%s'\n", 995 pci_name(pd)); 996 return -ENODEV; 997 } 998#endif /* CONFIG_PCI */ 999 1000 return 0; 1001} 1002 1003 1004static void __devexit sticore_pci_remove(struct pci_dev *pd) 1005{ 1006 BUG(); 1007} 1008 1009 1010static struct pci_device_id sti_pci_tbl[] = { 1011 { PCI_DEVICE(PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_VISUALIZE_EG) }, 1012 { PCI_DEVICE(PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_VISUALIZE_FX6) }, 1013 { PCI_DEVICE(PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_VISUALIZE_FX4) }, 1014 { PCI_DEVICE(PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_VISUALIZE_FX2) }, 1015 { PCI_DEVICE(PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_VISUALIZE_FXE) }, 1016 { 0, } /* terminate list */ 1017}; 1018MODULE_DEVICE_TABLE(pci, sti_pci_tbl); 1019 1020static struct pci_driver pci_sti_driver = { 1021 .name = "sti", 1022 .id_table = sti_pci_tbl, 1023 .probe = sticore_pci_init, 1024 .remove = sticore_pci_remove, 1025}; 1026 1027static struct parisc_device_id sti_pa_tbl[] = { 1028 { HPHW_FIO, HVERSION_REV_ANY_ID, HVERSION_ANY_ID, 0x00077 }, 1029 { HPHW_FIO, HVERSION_REV_ANY_ID, HVERSION_ANY_ID, 0x00085 }, 1030 { 0, } 1031}; 1032 1033static struct parisc_driver pa_sti_driver = { 1034 .name = "sti", 1035 .id_table = sti_pa_tbl, 1036 .probe = sticore_pa_init, 1037}; 1038 1039 1040/* 1041 * sti_init_roms() - detects all STI ROMs and stores them in sti_roms[] 1042 */ 1043 1044static int sticore_initialized __read_mostly; 1045 1046static void __devinit sti_init_roms(void) 1047{ 1048 if (sticore_initialized) 1049 return; 1050 1051 sticore_initialized = 1; 1052 1053 printk(KERN_INFO "STI GSC/PCI core graphics driver " 1054 STI_DRIVERVERSION "\n"); 1055 1056 /* Register drivers for native & PCI cards */ 1057 register_parisc_driver(&pa_sti_driver); 1058 WARN_ON(pci_register_driver(&pci_sti_driver)); 1059 1060 /* if we didn't find the given default sti, take the first one */ 1061 if (!default_sti) 1062 default_sti = sti_roms[0]; 1063 1064} 1065 1066/* 1067 * index = 0 gives default sti 1068 * index > 0 gives other stis in detection order 1069 */ 1070struct sti_struct * sti_get_rom(unsigned int index) 1071{ 1072 if (!sticore_initialized) 1073 sti_init_roms(); 1074 1075 if (index == 0) 1076 return default_sti; 1077 1078 if (index > num_sti_roms) 1079 return NULL; 1080 1081 return sti_roms[index-1]; 1082} 1083EXPORT_SYMBOL(sti_get_rom); 1084 1085MODULE_AUTHOR("Philipp Rumpf, Helge Deller, Thomas Bogendoerfer"); 1086MODULE_DESCRIPTION("Core STI driver for HP's NGLE series graphics cards in HP PARISC machines"); 1087MODULE_LICENSE("GPL v2"); 1088 1089