1 // SPDX-License-Identifier: GPL-2.0-only 2 /* 3 * linux/drivers/video/console/sticore.c - 4 * core code for console driver using HP's STI firmware 5 * 6 * Copyright (C) 2000 Philipp Rumpf <prumpf@tux.org> 7 * Copyright (C) 2001-2020 Helge Deller <deller@gmx.de> 8 * Copyright (C) 2001-2002 Thomas Bogendoerfer <tsbogend@alpha.franken.de> 9 * 10 * TODO: 11 * - call STI in virtual mode rather than in real mode 12 * - screen blanking with state_mgmt() in text mode STI ? 13 * - try to make it work on m68k hp workstations ;) 14 * 15 */ 16 17 #define pr_fmt(fmt) "%s: " fmt, KBUILD_MODNAME 18 19 #include <linux/module.h> 20 #include <linux/types.h> 21 #include <linux/kernel.h> 22 #include <linux/slab.h> 23 #include <linux/init.h> 24 #include <linux/pci.h> 25 #include <linux/font.h> 26 27 #include <asm/hardware.h> 28 #include <asm/page.h> 29 #include <asm/parisc-device.h> 30 #include <asm/pdc.h> 31 #include <asm/cacheflush.h> 32 #include <asm/grfioctl.h> 33 34 #include <video/sticore.h> 35 36 #define STI_DRIVERVERSION "Version 0.9c" 37 38 static struct sti_struct *default_sti __read_mostly; 39 40 /* number of STI ROMS found and their ptrs to each struct */ 41 static int num_sti_roms __read_mostly; 42 static struct sti_struct *sti_roms[MAX_STI_ROMS] __read_mostly; 43 44 45 /* The colour indices used by STI are 46 * 0 - Black 47 * 1 - White 48 * 2 - Red 49 * 3 - Yellow/Brown 50 * 4 - Green 51 * 5 - Cyan 52 * 6 - Blue 53 * 7 - Magenta 54 * 55 * So we have the same colours as VGA (basically one bit each for R, G, B), 56 * but have to translate them, anyway. */ 57 58 static const u8 col_trans[8] = { 59 0, 6, 4, 5, 60 2, 7, 3, 1 61 }; 62 63 #define c_fg(sti, c) col_trans[((c>> 8) & 7)] 64 #define c_bg(sti, c) col_trans[((c>>11) & 7)] 65 #define c_index(sti, c) ((c) & 0xff) 66 67 static const struct sti_init_flags default_init_flags = { 68 .wait = STI_WAIT, 69 .reset = 1, 70 .text = 1, 71 .nontext = 1, 72 .no_chg_bet = 1, 73 .no_chg_bei = 1, 74 .init_cmap_tx = 1, 75 }; 76 77 static int sti_init_graph(struct sti_struct *sti) 78 { 79 struct sti_init_inptr *inptr = &sti->sti_data->init_inptr; 80 struct sti_init_inptr_ext *inptr_ext = &sti->sti_data->init_inptr_ext; 81 struct sti_init_outptr *outptr = &sti->sti_data->init_outptr; 82 unsigned long flags; 83 int ret, err; 84 85 spin_lock_irqsave(&sti->lock, flags); 86 87 memset(inptr, 0, sizeof(*inptr)); 88 inptr->text_planes = 3; /* # of text planes (max 3 for STI) */ 89 memset(inptr_ext, 0, sizeof(*inptr_ext)); 90 inptr->ext_ptr = STI_PTR(inptr_ext); 91 outptr->errno = 0; 92 93 ret = sti_call(sti, sti->init_graph, &default_init_flags, inptr, 94 outptr, sti->glob_cfg); 95 96 if (ret >= 0) 97 sti->text_planes = outptr->text_planes; 98 err = outptr->errno; 99 100 spin_unlock_irqrestore(&sti->lock, flags); 101 102 if (ret < 0) { 103 pr_err("STI init_graph failed (ret %d, errno %d)\n", ret, err); 104 return -1; 105 } 106 107 return 0; 108 } 109 110 static const struct sti_conf_flags default_conf_flags = { 111 .wait = STI_WAIT, 112 }; 113 114 static void sti_inq_conf(struct sti_struct *sti) 115 { 116 struct sti_conf_inptr *inptr = &sti->sti_data->inq_inptr; 117 struct sti_conf_outptr *outptr = &sti->sti_data->inq_outptr; 118 unsigned long flags; 119 s32 ret; 120 121 outptr->ext_ptr = STI_PTR(&sti->sti_data->inq_outptr_ext); 122 123 do { 124 spin_lock_irqsave(&sti->lock, flags); 125 memset(inptr, 0, sizeof(*inptr)); 126 ret = sti_call(sti, sti->inq_conf, &default_conf_flags, 127 inptr, outptr, sti->glob_cfg); 128 spin_unlock_irqrestore(&sti->lock, flags); 129 } while (ret == 1); 130 } 131 132 static const struct sti_font_flags default_font_flags = { 133 .wait = STI_WAIT, 134 .non_text = 0, 135 }; 136 137 void 138 sti_putc(struct sti_struct *sti, int c, int y, int x, 139 struct sti_cooked_font *font) 140 { 141 struct sti_font_inptr *inptr = &sti->sti_data->font_inptr; 142 struct sti_font_inptr inptr_default = { 143 .font_start_addr = STI_PTR(font->raw), 144 .index = c_index(sti, c), 145 .fg_color = c_fg(sti, c), 146 .bg_color = c_bg(sti, c), 147 .dest_x = x * font->width, 148 .dest_y = y * font->height, 149 }; 150 struct sti_font_outptr *outptr = &sti->sti_data->font_outptr; 151 s32 ret; 152 unsigned long flags; 153 154 do { 155 spin_lock_irqsave(&sti->lock, flags); 156 *inptr = inptr_default; 157 ret = sti_call(sti, sti->font_unpmv, &default_font_flags, 158 inptr, outptr, sti->glob_cfg); 159 spin_unlock_irqrestore(&sti->lock, flags); 160 } while (ret == 1); 161 } 162 163 static const struct sti_blkmv_flags clear_blkmv_flags = { 164 .wait = STI_WAIT, 165 .color = 1, 166 .clear = 1, 167 }; 168 169 void 170 sti_set(struct sti_struct *sti, int src_y, int src_x, 171 int height, int width, u8 color) 172 { 173 struct sti_blkmv_inptr *inptr = &sti->sti_data->blkmv_inptr; 174 struct sti_blkmv_inptr inptr_default = { 175 .fg_color = color, 176 .bg_color = color, 177 .src_x = src_x, 178 .src_y = src_y, 179 .dest_x = src_x, 180 .dest_y = src_y, 181 .width = width, 182 .height = height, 183 }; 184 struct sti_blkmv_outptr *outptr = &sti->sti_data->blkmv_outptr; 185 s32 ret; 186 unsigned long flags; 187 188 do { 189 spin_lock_irqsave(&sti->lock, flags); 190 *inptr = inptr_default; 191 ret = sti_call(sti, sti->block_move, &clear_blkmv_flags, 192 inptr, outptr, sti->glob_cfg); 193 spin_unlock_irqrestore(&sti->lock, flags); 194 } while (ret == 1); 195 } 196 197 void 198 sti_clear(struct sti_struct *sti, int src_y, int src_x, 199 int height, int width, int c, struct sti_cooked_font *font) 200 { 201 struct sti_blkmv_inptr *inptr = &sti->sti_data->blkmv_inptr; 202 struct sti_blkmv_inptr inptr_default = { 203 .fg_color = c_fg(sti, c), 204 .bg_color = c_bg(sti, c), 205 .src_x = src_x * font->width, 206 .src_y = src_y * font->height, 207 .dest_x = src_x * font->width, 208 .dest_y = src_y * font->height, 209 .width = width * font->width, 210 .height = height * font->height, 211 }; 212 struct sti_blkmv_outptr *outptr = &sti->sti_data->blkmv_outptr; 213 s32 ret; 214 unsigned long flags; 215 216 do { 217 spin_lock_irqsave(&sti->lock, flags); 218 *inptr = inptr_default; 219 ret = sti_call(sti, sti->block_move, &clear_blkmv_flags, 220 inptr, outptr, sti->glob_cfg); 221 spin_unlock_irqrestore(&sti->lock, flags); 222 } while (ret == 1); 223 } 224 225 static const struct sti_blkmv_flags default_blkmv_flags = { 226 .wait = STI_WAIT, 227 }; 228 229 void 230 sti_bmove(struct sti_struct *sti, int src_y, int src_x, 231 int dst_y, int dst_x, int height, int width, 232 struct sti_cooked_font *font) 233 { 234 struct sti_blkmv_inptr *inptr = &sti->sti_data->blkmv_inptr; 235 struct sti_blkmv_inptr inptr_default = { 236 .src_x = src_x * font->width, 237 .src_y = src_y * font->height, 238 .dest_x = dst_x * font->width, 239 .dest_y = dst_y * font->height, 240 .width = width * font->width, 241 .height = height * font->height, 242 }; 243 struct sti_blkmv_outptr *outptr = &sti->sti_data->blkmv_outptr; 244 s32 ret; 245 unsigned long flags; 246 247 do { 248 spin_lock_irqsave(&sti->lock, flags); 249 *inptr = inptr_default; 250 ret = sti_call(sti, sti->block_move, &default_blkmv_flags, 251 inptr, outptr, sti->glob_cfg); 252 spin_unlock_irqrestore(&sti->lock, flags); 253 } while (ret == 1); 254 } 255 256 257 static void sti_flush(unsigned long start, unsigned long end) 258 { 259 flush_icache_range(start, end); 260 } 261 262 static void sti_rom_copy(unsigned long base, unsigned long count, void *dest) 263 { 264 unsigned long dest_start = (unsigned long) dest; 265 266 /* this still needs to be revisited (see arch/parisc/mm/init.c:246) ! */ 267 while (count >= 4) { 268 count -= 4; 269 *(u32 *)dest = gsc_readl(base); 270 base += 4; 271 dest += 4; 272 } 273 while (count) { 274 count--; 275 *(u8 *)dest = gsc_readb(base); 276 base++; 277 dest++; 278 } 279 280 sti_flush(dest_start, (unsigned long)dest); 281 } 282 283 284 285 286 static char default_sti_path[21] __read_mostly; 287 288 #ifndef MODULE 289 static int __init sti_setup(char *str) 290 { 291 if (str) 292 strscpy(default_sti_path, str, sizeof(default_sti_path)); 293 294 return 1; 295 } 296 297 /* Assuming the machine has multiple STI consoles (=graphic cards) which 298 * all get detected by sticon, the user may define with the linux kernel 299 * parameter sti=<x> which of them will be the initial boot-console. 300 * <x> is a number between 0 and MAX_STI_ROMS, with 0 as the default 301 * STI screen. 302 */ 303 __setup("sti=", sti_setup); 304 #endif 305 306 307 308 static char *font_name; 309 static int font_index, 310 font_height, 311 font_width; 312 #ifndef MODULE 313 static int sti_font_setup(char *str) 314 { 315 /* 316 * The default font can be selected in various ways. 317 * a) sti_font=VGA8x16, sti_font=10x20, sti_font=10*20 selects 318 * an built-in Linux framebuffer font. 319 * b) sti_font=<index>, where index is (1..x) with 1 selecting 320 * the first HP STI ROM built-in font.. 321 */ 322 323 if (*str >= '0' && *str <= '9') { 324 char *x; 325 326 if ((x = strchr(str, 'x')) || (x = strchr(str, '*'))) { 327 font_height = simple_strtoul(str, NULL, 0); 328 font_width = simple_strtoul(x+1, NULL, 0); 329 } else { 330 font_index = simple_strtoul(str, NULL, 0); 331 } 332 } else { 333 font_name = str; /* fb font name */ 334 } 335 336 return 1; 337 } 338 339 /* The optional linux kernel parameter "sti_font" defines which font 340 * should be used by the sticon driver to draw characters to the screen. 341 * Possible values are: 342 * - sti_font=<fb_fontname>: 343 * <fb_fontname> is the name of one of the linux-kernel built-in 344 * framebuffer font names (e.g. VGA8x16, SUN22x18). 345 * This is only available if the fonts have been statically compiled 346 * in with e.g. the CONFIG_FONT_8x16 or CONFIG_FONT_SUN12x22 options. 347 * - sti_font=<number> (<number> = 1,2,3,...) 348 * most STI ROMs have built-in HP specific fonts, which can be selected 349 * by giving the desired number to the sticon driver. 350 * NOTE: This number is machine and STI ROM dependend. 351 * - sti_font=<height>x<width> (e.g. sti_font=16x8) 352 * <height> and <width> gives hints to the height and width of the 353 * font which the user wants. The sticon driver will try to use 354 * a font with this height and width, but if no suitable font is 355 * found, sticon will use the default 8x8 font. 356 */ 357 __setup("sti_font=", sti_font_setup); 358 #endif 359 360 361 362 static void sti_dump_globcfg(struct sti_glob_cfg *glob_cfg, 363 unsigned int sti_mem_request) 364 { 365 struct sti_glob_cfg_ext *cfg; 366 367 pr_debug("%d text planes\n" 368 "%4d x %4d screen resolution\n" 369 "%4d x %4d offscreen\n" 370 "%4d x %4d layout\n" 371 "regions at %08x %08x %08x %08x\n" 372 "regions at %08x %08x %08x %08x\n" 373 "reent_lvl %d\n" 374 "save_addr %08x\n", 375 glob_cfg->text_planes, 376 glob_cfg->onscreen_x, glob_cfg->onscreen_y, 377 glob_cfg->offscreen_x, glob_cfg->offscreen_y, 378 glob_cfg->total_x, glob_cfg->total_y, 379 glob_cfg->region_ptrs[0], glob_cfg->region_ptrs[1], 380 glob_cfg->region_ptrs[2], glob_cfg->region_ptrs[3], 381 glob_cfg->region_ptrs[4], glob_cfg->region_ptrs[5], 382 glob_cfg->region_ptrs[6], glob_cfg->region_ptrs[7], 383 glob_cfg->reent_lvl, 384 glob_cfg->save_addr); 385 386 /* dump extended cfg */ 387 cfg = PTR_STI((unsigned long)glob_cfg->ext_ptr); 388 pr_debug("monitor %d\n" 389 "in friendly mode: %d\n" 390 "power consumption %d watts\n" 391 "freq ref %d\n" 392 "sti_mem_addr %08x (size=%d bytes)\n", 393 cfg->curr_mon, 394 cfg->friendly_boot, 395 cfg->power, 396 cfg->freq_ref, 397 cfg->sti_mem_addr, sti_mem_request); 398 } 399 400 static void sti_dump_outptr(struct sti_struct *sti) 401 { 402 pr_debug("%d bits per pixel\n" 403 "%d used bits\n" 404 "%d planes\n" 405 "attributes %08x\n", 406 sti->sti_data->inq_outptr.bits_per_pixel, 407 sti->sti_data->inq_outptr.bits_used, 408 sti->sti_data->inq_outptr.planes, 409 sti->sti_data->inq_outptr.attributes); 410 } 411 412 static int sti_init_glob_cfg(struct sti_struct *sti, unsigned long rom_address, 413 unsigned long hpa) 414 { 415 struct sti_glob_cfg *glob_cfg; 416 struct sti_glob_cfg_ext *glob_cfg_ext; 417 void *save_addr; 418 void *sti_mem_addr; 419 int i, size; 420 421 if (sti->sti_mem_request < 256) 422 sti->sti_mem_request = 256; /* STI default */ 423 424 size = sizeof(struct sti_all_data) + sti->sti_mem_request - 256; 425 426 sti->sti_data = kzalloc(size, STI_LOWMEM); 427 if (!sti->sti_data) 428 return -ENOMEM; 429 430 glob_cfg = &sti->sti_data->glob_cfg; 431 glob_cfg_ext = &sti->sti_data->glob_cfg_ext; 432 save_addr = &sti->sti_data->save_addr; 433 sti_mem_addr = &sti->sti_data->sti_mem_addr; 434 435 glob_cfg->ext_ptr = STI_PTR(glob_cfg_ext); 436 glob_cfg->save_addr = STI_PTR(save_addr); 437 for (i=0; i<8; i++) { 438 unsigned long newhpa, len; 439 440 if (sti->pd) { 441 unsigned char offs = sti->rm_entry[i]; 442 443 if (offs == 0) 444 continue; 445 if (offs != PCI_ROM_ADDRESS && 446 (offs < PCI_BASE_ADDRESS_0 || 447 offs > PCI_BASE_ADDRESS_5)) { 448 pr_warn("STI pci region mapping for region %d (%02x) can't be mapped\n", 449 i,sti->rm_entry[i]); 450 continue; 451 } 452 newhpa = pci_resource_start (sti->pd, (offs - PCI_BASE_ADDRESS_0) / 4); 453 } else 454 newhpa = (i == 0) ? rom_address : hpa; 455 456 sti->regions_phys[i] = 457 REGION_OFFSET_TO_PHYS(sti->regions[i], newhpa); 458 459 len = sti->regions[i].region_desc.length * 4096; 460 if (len) 461 glob_cfg->region_ptrs[i] = sti->regions_phys[i]; 462 463 pr_debug("region #%d: phys %08lx, region_ptr %08x, len=%lukB, " 464 "btlb=%d, sysonly=%d, cache=%d, last=%d\n", 465 i, sti->regions_phys[i], glob_cfg->region_ptrs[i], 466 len/1024, 467 sti->regions[i].region_desc.btlb, 468 sti->regions[i].region_desc.sys_only, 469 sti->regions[i].region_desc.cache, 470 sti->regions[i].region_desc.last); 471 472 /* last entry reached ? */ 473 if (sti->regions[i].region_desc.last) 474 break; 475 } 476 477 if (++i<8 && sti->regions[i].region) 478 pr_warn("future ptr (0x%8x) not yet supported !\n", 479 sti->regions[i].region); 480 481 glob_cfg_ext->sti_mem_addr = STI_PTR(sti_mem_addr); 482 483 sti->glob_cfg = glob_cfg; 484 485 return 0; 486 } 487 488 #ifdef CONFIG_FONT_SUPPORT 489 static struct sti_cooked_font * 490 sti_select_fbfont(struct sti_cooked_rom *cooked_rom, const char *fbfont_name) 491 { 492 const struct font_desc *fbfont = NULL; 493 unsigned int size, bpc; 494 void *dest; 495 struct sti_rom_font *nf; 496 struct sti_cooked_font *cooked_font; 497 498 if (fbfont_name && strlen(fbfont_name)) 499 fbfont = find_font(fbfont_name); 500 if (!fbfont) 501 fbfont = get_default_font(1024,768, ~(u32)0, ~(u32)0); 502 if (!fbfont) 503 return NULL; 504 505 pr_info(" using %ux%u framebuffer font %s\n", 506 fbfont->width, fbfont->height, fbfont->name); 507 508 bpc = ((fbfont->width+7)/8) * fbfont->height; 509 size = bpc * fbfont->charcount; 510 size += sizeof(struct sti_rom_font); 511 512 nf = kzalloc(size, STI_LOWMEM); 513 if (!nf) 514 return NULL; 515 516 nf->first_char = 0; 517 nf->last_char = fbfont->charcount - 1; 518 nf->width = fbfont->width; 519 nf->height = fbfont->height; 520 nf->font_type = STI_FONT_HPROMAN8; 521 nf->bytes_per_char = bpc; 522 nf->next_font = 0; 523 nf->underline_height = 1; 524 nf->underline_pos = fbfont->height - nf->underline_height; 525 526 dest = nf; 527 dest += sizeof(struct sti_rom_font); 528 memcpy(dest, fbfont->data, bpc * fbfont->charcount); 529 530 cooked_font = kzalloc(sizeof(*cooked_font), GFP_KERNEL); 531 if (!cooked_font) { 532 kfree(nf); 533 return NULL; 534 } 535 536 cooked_font->raw = nf; 537 cooked_font->raw_ptr = nf; 538 cooked_font->next_font = NULL; 539 540 cooked_rom->font_start = cooked_font; 541 542 return cooked_font; 543 } 544 #else 545 static struct sti_cooked_font * 546 sti_select_fbfont(struct sti_cooked_rom *cooked_rom, const char *fbfont_name) 547 { 548 return NULL; 549 } 550 #endif 551 552 static void sti_dump_font(struct sti_cooked_font *font) 553 { 554 #ifdef STI_DUMP_FONT 555 unsigned char *p = (unsigned char *)font->raw; 556 int n; 557 558 p += sizeof(struct sti_rom_font); 559 pr_debug(" w %d h %d bpc %d\n", font->width, font->height, 560 font->raw->bytes_per_char); 561 562 for (n = 0; n < 256 * font->raw->bytes_per_char; n += 16, p += 16) { 563 pr_debug(" 0x%02x, 0x%02x, 0x%02x, 0x%02x, 0x%02x, 0x%02x," 564 " 0x%02x, 0x%02x, 0x%02x, 0x%02x, 0x%02x, 0x%02x," 565 " 0x%02x, 0x%02x, 0x%02x, 0x%02x,\n", 566 p[0], p[1], p[2], p[3], p[4], p[5], p[6], p[7], p[8], 567 p[9], p[10], p[11], p[12], p[13], p[14], p[15]); 568 } 569 #endif 570 } 571 572 static int sti_search_font(struct sti_cooked_rom *rom, int height, int width) 573 { 574 struct sti_cooked_font *font; 575 int i = 0; 576 577 for (font = rom->font_start; font; font = font->next_font, i++) { 578 if ((font->raw->width == width) && 579 (font->raw->height == height)) 580 return i; 581 } 582 return 0; 583 } 584 585 static struct sti_cooked_font *sti_select_font(struct sti_cooked_rom *rom) 586 { 587 struct sti_cooked_font *font; 588 int i; 589 590 /* check for framebuffer-font first */ 591 if (!font_index) { 592 font = sti_select_fbfont(rom, font_name); 593 if (font) 594 return font; 595 } 596 597 if (font_width && font_height) 598 font_index = sti_search_font(rom, 599 font_height, font_width); 600 601 for (font = rom->font_start, i = font_index - 1; 602 font && (i > 0); 603 font = font->next_font, i--); 604 605 if (font) 606 return font; 607 else 608 return rom->font_start; 609 } 610 611 612 static void sti_dump_rom(struct sti_struct *sti) 613 { 614 struct sti_rom *rom = sti->rom->raw; 615 struct sti_cooked_font *font_start; 616 int nr; 617 618 pr_info(" id %04x-%04x, conforms to spec rev. %d.%02x\n", 619 rom->graphics_id[0], 620 rom->graphics_id[1], 621 rom->revno[0] >> 4, 622 rom->revno[0] & 0x0f); 623 pr_debug(" supports %d monitors\n", rom->num_mons); 624 pr_debug(" font start %08x\n", rom->font_start); 625 pr_debug(" region list %08x\n", rom->region_list); 626 pr_debug(" init_graph %08x\n", rom->init_graph); 627 pr_debug(" bus support %02x\n", rom->bus_support); 628 pr_debug(" ext bus support %02x\n", rom->ext_bus_support); 629 pr_debug(" alternate code type %d\n", rom->alt_code_type); 630 631 font_start = sti->rom->font_start; 632 nr = 0; 633 while (font_start) { 634 struct sti_rom_font *f = font_start->raw; 635 636 pr_info(" built-in font #%d: size %dx%d, chars %d-%d, bpc %d\n", ++nr, 637 f->width, f->height, 638 f->first_char, f->last_char, f->bytes_per_char); 639 font_start = font_start->next_font; 640 } 641 } 642 643 644 static int sti_cook_fonts(struct sti_cooked_rom *cooked_rom, 645 struct sti_rom *raw_rom) 646 { 647 struct sti_rom_font *raw_font, *font_start; 648 struct sti_cooked_font *cooked_font; 649 650 cooked_font = kzalloc(sizeof(*cooked_font), GFP_KERNEL); 651 if (!cooked_font) 652 return 0; 653 654 cooked_rom->font_start = cooked_font; 655 656 raw_font = ((void *)raw_rom) + (raw_rom->font_start); 657 658 font_start = raw_font; 659 cooked_font->raw = raw_font; 660 661 while (raw_font->next_font) { 662 raw_font = ((void *)font_start) + (raw_font->next_font); 663 664 cooked_font->next_font = kzalloc(sizeof(*cooked_font), GFP_KERNEL); 665 if (!cooked_font->next_font) 666 return 1; 667 668 cooked_font = cooked_font->next_font; 669 670 cooked_font->raw = raw_font; 671 } 672 673 cooked_font->next_font = NULL; 674 return 1; 675 } 676 677 #define BMODE_RELOCATE(offset) offset = (offset) / 4; 678 #define BMODE_LAST_ADDR_OFFS 0x50 679 680 void sti_font_convert_bytemode(struct sti_struct *sti, struct sti_cooked_font *f) 681 { 682 unsigned char *n, *p, *q; 683 int size = f->raw->bytes_per_char * (f->raw->last_char + 1) + sizeof(struct sti_rom_font); 684 struct sti_rom_font *old_font; 685 686 if (sti->wordmode) 687 return; 688 689 old_font = f->raw_ptr; 690 n = kcalloc(4, size, STI_LOWMEM); 691 f->raw_ptr = n; 692 if (!n) 693 return; 694 p = n + 3; 695 q = (unsigned char *) f->raw; 696 while (size--) { 697 *p = *q++; 698 p += 4; 699 } 700 /* store new ptr to byte-mode font and delete old font */ 701 f->raw = (struct sti_rom_font *) (n + 3); 702 kfree(old_font); 703 } 704 EXPORT_SYMBOL(sti_font_convert_bytemode); 705 706 static void sti_bmode_rom_copy(unsigned long base, unsigned long count, 707 void *dest) 708 { 709 unsigned long dest_start = (unsigned long) dest; 710 711 while (count) { 712 count--; 713 *(u8 *)dest = gsc_readl(base); 714 base += 4; 715 dest++; 716 } 717 718 sti_flush(dest_start, (unsigned long)dest); 719 } 720 721 static struct sti_rom *sti_get_bmode_rom (unsigned long address) 722 { 723 struct sti_rom *raw; 724 u32 size; 725 struct sti_rom_font *raw_font, *font_start; 726 727 sti_bmode_rom_copy(address + BMODE_LAST_ADDR_OFFS, sizeof(size), &size); 728 729 size = (size+3) / 4; 730 raw = kmalloc(size, STI_LOWMEM); 731 if (raw) { 732 sti_bmode_rom_copy(address, size, raw); 733 memmove (&raw->res004, &raw->type[0], 0x3c); 734 raw->type[3] = raw->res004; 735 736 BMODE_RELOCATE (raw->region_list); 737 BMODE_RELOCATE (raw->font_start); 738 739 BMODE_RELOCATE (raw->init_graph); 740 BMODE_RELOCATE (raw->state_mgmt); 741 BMODE_RELOCATE (raw->font_unpmv); 742 BMODE_RELOCATE (raw->block_move); 743 BMODE_RELOCATE (raw->inq_conf); 744 745 raw_font = ((void *)raw) + raw->font_start; 746 font_start = raw_font; 747 748 while (raw_font->next_font) { 749 BMODE_RELOCATE (raw_font->next_font); 750 raw_font = ((void *)font_start) + raw_font->next_font; 751 } 752 } 753 return raw; 754 } 755 756 static struct sti_rom *sti_get_wmode_rom(unsigned long address) 757 { 758 struct sti_rom *raw; 759 unsigned long size; 760 761 /* read the ROM size directly from the struct in ROM */ 762 size = gsc_readl(address + offsetof(struct sti_rom,last_addr)); 763 764 raw = kmalloc(size, STI_LOWMEM); 765 if (raw) 766 sti_rom_copy(address, size, raw); 767 768 return raw; 769 } 770 771 static int sti_read_rom(int wordmode, struct sti_struct *sti, 772 unsigned long address) 773 { 774 struct sti_cooked_rom *cooked; 775 struct sti_rom *raw = NULL; 776 unsigned long revno; 777 778 cooked = kmalloc(sizeof *cooked, GFP_KERNEL); 779 if (!cooked) 780 goto out_err; 781 782 if (wordmode) 783 raw = sti_get_wmode_rom (address); 784 else 785 raw = sti_get_bmode_rom (address); 786 787 if (!raw) 788 goto out_err; 789 790 if (!sti_cook_fonts(cooked, raw)) { 791 pr_warn("No font found for STI at %08lx\n", address); 792 goto out_err; 793 } 794 795 if (raw->region_list) 796 memcpy(sti->regions, ((void *)raw)+raw->region_list, sizeof(sti->regions)); 797 798 address = (unsigned long) STI_PTR(raw); 799 800 pr_info("STI %s ROM supports 32 %sbit firmware functions.\n", 801 wordmode ? "word mode" : "byte mode", 802 raw->alt_code_type == ALT_CODE_TYPE_PA_RISC_64 803 ? "and 64 " : ""); 804 805 sti->font_unpmv = address + (raw->font_unpmv & 0x03ffffff); 806 sti->block_move = address + (raw->block_move & 0x03ffffff); 807 sti->init_graph = address + (raw->init_graph & 0x03ffffff); 808 sti->inq_conf = address + (raw->inq_conf & 0x03ffffff); 809 810 sti->rom = cooked; 811 sti->rom->raw = raw; 812 sti_dump_rom(sti); 813 814 sti->wordmode = wordmode; 815 sti->font = sti_select_font(sti->rom); 816 sti->font->width = sti->font->raw->width; 817 sti->font->height = sti->font->raw->height; 818 sti_font_convert_bytemode(sti, sti->font); 819 sti_dump_font(sti->font); 820 821 sti->sti_mem_request = raw->sti_mem_req; 822 sti->graphics_id[0] = raw->graphics_id[0]; 823 sti->graphics_id[1] = raw->graphics_id[1]; 824 825 /* check if the ROM routines in this card are compatible */ 826 if (wordmode || sti->graphics_id[1] != 0x09A02587) 827 goto ok; 828 829 revno = (raw->revno[0] << 8) | raw->revno[1]; 830 831 switch (sti->graphics_id[0]) { 832 case S9000_ID_HCRX: 833 /* HyperA or HyperB ? */ 834 if (revno == 0x8408 || revno == 0x840b) 835 goto msg_not_supported; 836 break; 837 case CRT_ID_THUNDER: 838 if (revno == 0x8509) 839 goto msg_not_supported; 840 break; 841 case CRT_ID_THUNDER2: 842 if (revno == 0x850c) 843 goto msg_not_supported; 844 } 845 ok: 846 return 1; 847 848 msg_not_supported: 849 pr_warn("Sorry, this GSC/STI card is not yet supported.\n"); 850 pr_warn("Please see https://parisc.wiki.kernel.org/" 851 "index.php/Graphics_howto for more info.\n"); 852 /* fall through */ 853 out_err: 854 kfree(raw); 855 kfree(cooked); 856 return 0; 857 } 858 859 static struct sti_struct *sti_try_rom_generic(unsigned long address, 860 unsigned long hpa, 861 struct pci_dev *pd) 862 { 863 struct sti_struct *sti; 864 int ok; 865 u32 sig; 866 867 if (num_sti_roms >= MAX_STI_ROMS) { 868 pr_warn("maximum number of STI ROMS reached !\n"); 869 return NULL; 870 } 871 872 sti = kzalloc(sizeof(*sti), GFP_KERNEL); 873 if (!sti) 874 return NULL; 875 876 spin_lock_init(&sti->lock); 877 878 test_rom: 879 /* if we can't read the ROM, bail out early. Not being able 880 * to read the hpa is okay, for romless sti */ 881 if (pdc_add_valid(address)) 882 goto out_err; 883 884 sig = gsc_readl(address); 885 886 /* check for a PCI ROM structure */ 887 if ((le32_to_cpu(sig)==0xaa55)) { 888 unsigned int i, rm_offset; 889 u32 *rm; 890 i = gsc_readl(address+0x04); 891 if (i != 1) { 892 /* The ROM could have multiple architecture 893 * dependent images (e.g. i386, parisc,...) */ 894 pr_warn("PCI ROM is not a STI ROM type image (0x%8x)\n", i); 895 goto out_err; 896 } 897 898 sti->pd = pd; 899 900 i = gsc_readl(address+0x0c); 901 pr_debug("PCI ROM size (from header) = %d kB\n", 902 le16_to_cpu(i>>16)*512/1024); 903 rm_offset = le16_to_cpu(i & 0xffff); 904 if (rm_offset) { 905 /* read 16 bytes from the pci region mapper array */ 906 rm = (u32*) &sti->rm_entry; 907 *rm++ = gsc_readl(address+rm_offset+0x00); 908 *rm++ = gsc_readl(address+rm_offset+0x04); 909 *rm++ = gsc_readl(address+rm_offset+0x08); 910 *rm++ = gsc_readl(address+rm_offset+0x0c); 911 } 912 913 address += le32_to_cpu(gsc_readl(address+8)); 914 pr_debug("sig %04x, PCI STI ROM at %08lx\n", sig, address); 915 goto test_rom; 916 } 917 918 ok = 0; 919 920 if ((sig & 0xff) == 0x01) { 921 pr_debug(" byte mode ROM at %08lx, hpa at %08lx\n", 922 address, hpa); 923 ok = sti_read_rom(0, sti, address); 924 } 925 926 if ((sig & 0xffff) == 0x0303) { 927 pr_debug(" word mode ROM at %08lx, hpa at %08lx\n", 928 address, hpa); 929 ok = sti_read_rom(1, sti, address); 930 } 931 932 if (!ok) 933 goto out_err; 934 935 if (sti_init_glob_cfg(sti, address, hpa)) 936 goto out_err; /* not enough memory */ 937 938 /* disable STI PCI ROM. ROM and card RAM overlap and 939 * leaving it enabled would force HPMCs 940 */ 941 if (sti->pd) { 942 unsigned long rom_base; 943 rom_base = pci_resource_start(sti->pd, PCI_ROM_RESOURCE); 944 pci_write_config_dword(sti->pd, PCI_ROM_ADDRESS, rom_base & ~PCI_ROM_ADDRESS_ENABLE); 945 pr_debug("STI PCI ROM disabled\n"); 946 } 947 948 if (sti_init_graph(sti)) 949 goto out_err; 950 951 sti_inq_conf(sti); 952 sti_dump_globcfg(sti->glob_cfg, sti->sti_mem_request); 953 sti_dump_outptr(sti); 954 955 pr_info(" graphics card name: %s\n", 956 sti->sti_data->inq_outptr.dev_name); 957 958 sti_roms[num_sti_roms] = sti; 959 num_sti_roms++; 960 961 return sti; 962 963 out_err: 964 kfree(sti); 965 return NULL; 966 } 967 968 static void sticore_check_for_default_sti(struct sti_struct *sti, char *path) 969 { 970 pr_info(" located at [%s]\n", sti->pa_path); 971 if (strcmp (path, default_sti_path) == 0) 972 default_sti = sti; 973 } 974 975 /* 976 * on newer systems PDC gives the address of the ROM 977 * in the additional address field addr[1] while on 978 * older Systems the PDC stores it in page0->proc_sti 979 */ 980 static int __init sticore_pa_init(struct parisc_device *dev) 981 { 982 struct sti_struct *sti = NULL; 983 int hpa = dev->hpa.start; 984 985 if (dev->num_addrs && dev->addr[0]) 986 sti = sti_try_rom_generic(dev->addr[0], hpa, NULL); 987 if (!sti) 988 sti = sti_try_rom_generic(hpa, hpa, NULL); 989 if (!sti) 990 sti = sti_try_rom_generic(PAGE0->proc_sti, hpa, NULL); 991 if (!sti) 992 return 1; 993 994 print_pa_hwpath(dev, sti->pa_path); 995 sticore_check_for_default_sti(sti, sti->pa_path); 996 return 0; 997 } 998 999 1000 static int sticore_pci_init(struct pci_dev *pd, const struct pci_device_id *ent) 1001 { 1002 #ifdef CONFIG_PCI 1003 unsigned long fb_base, rom_base; 1004 unsigned int fb_len, rom_len; 1005 int err; 1006 struct sti_struct *sti; 1007 1008 err = pci_enable_device(pd); 1009 if (err < 0) { 1010 dev_err(&pd->dev, "Cannot enable PCI device\n"); 1011 return err; 1012 } 1013 1014 fb_base = pci_resource_start(pd, 0); 1015 fb_len = pci_resource_len(pd, 0); 1016 rom_base = pci_resource_start(pd, PCI_ROM_RESOURCE); 1017 rom_len = pci_resource_len(pd, PCI_ROM_RESOURCE); 1018 if (rom_base) { 1019 pci_write_config_dword(pd, PCI_ROM_ADDRESS, rom_base | PCI_ROM_ADDRESS_ENABLE); 1020 pr_debug("STI PCI ROM enabled at 0x%08lx\n", rom_base); 1021 } 1022 1023 pr_info("STI PCI graphic ROM found at %08lx (%u kB), fb at %08lx (%u MB)\n", 1024 rom_base, rom_len/1024, fb_base, fb_len/1024/1024); 1025 1026 pr_debug("Trying PCI STI ROM at %08lx, PCI hpa at %08lx\n", 1027 rom_base, fb_base); 1028 1029 sti = sti_try_rom_generic(rom_base, fb_base, pd); 1030 if (sti) { 1031 print_pci_hwpath(pd, sti->pa_path); 1032 sticore_check_for_default_sti(sti, sti->pa_path); 1033 } 1034 1035 if (!sti) { 1036 pr_warn("Unable to handle STI device '%s'\n", pci_name(pd)); 1037 return -ENODEV; 1038 } 1039 #endif /* CONFIG_PCI */ 1040 1041 return 0; 1042 } 1043 1044 1045 static void __exit sticore_pci_remove(struct pci_dev *pd) 1046 { 1047 BUG(); 1048 } 1049 1050 1051 static struct pci_device_id sti_pci_tbl[] = { 1052 { PCI_DEVICE(PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_VISUALIZE_EG) }, 1053 { PCI_DEVICE(PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_VISUALIZE_FX6) }, 1054 { PCI_DEVICE(PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_VISUALIZE_FX4) }, 1055 { PCI_DEVICE(PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_VISUALIZE_FX2) }, 1056 { PCI_DEVICE(PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_VISUALIZE_FXE) }, 1057 { 0, } /* terminate list */ 1058 }; 1059 MODULE_DEVICE_TABLE(pci, sti_pci_tbl); 1060 1061 static struct pci_driver pci_sti_driver = { 1062 .name = "sti", 1063 .id_table = sti_pci_tbl, 1064 .probe = sticore_pci_init, 1065 .remove = __exit_p(sticore_pci_remove), 1066 }; 1067 1068 static struct parisc_device_id sti_pa_tbl[] = { 1069 { HPHW_FIO, HVERSION_REV_ANY_ID, HVERSION_ANY_ID, 0x00077 }, 1070 { HPHW_FIO, HVERSION_REV_ANY_ID, HVERSION_ANY_ID, 0x00085 }, 1071 { 0, } 1072 }; 1073 MODULE_DEVICE_TABLE(parisc, sti_pa_tbl); 1074 1075 static struct parisc_driver pa_sti_driver __refdata = { 1076 .name = "sti", 1077 .id_table = sti_pa_tbl, 1078 .probe = sticore_pa_init, 1079 }; 1080 1081 1082 /* 1083 * sti_init_roms() - detects all STI ROMs and stores them in sti_roms[] 1084 */ 1085 1086 static int sticore_initialized __read_mostly; 1087 1088 static void sti_init_roms(void) 1089 { 1090 if (sticore_initialized) 1091 return; 1092 1093 sticore_initialized = 1; 1094 1095 pr_info("STI GSC/PCI core graphics driver " 1096 STI_DRIVERVERSION "\n"); 1097 1098 /* Register drivers for native & PCI cards */ 1099 register_parisc_driver(&pa_sti_driver); 1100 WARN_ON(pci_register_driver(&pci_sti_driver)); 1101 1102 /* if we didn't find the given default sti, take the first one */ 1103 if (!default_sti) 1104 default_sti = sti_roms[0]; 1105 1106 } 1107 1108 /* 1109 * index = 0 gives default sti 1110 * index > 0 gives other stis in detection order 1111 */ 1112 struct sti_struct * sti_get_rom(unsigned int index) 1113 { 1114 if (!sticore_initialized) 1115 sti_init_roms(); 1116 1117 if (index == 0) 1118 return default_sti; 1119 1120 if (index > num_sti_roms) 1121 return NULL; 1122 1123 return sti_roms[index-1]; 1124 } 1125 EXPORT_SYMBOL(sti_get_rom); 1126 1127 1128 int sti_call(const struct sti_struct *sti, unsigned long func, 1129 const void *flags, void *inptr, void *outptr, 1130 struct sti_glob_cfg *glob_cfg) 1131 { 1132 unsigned long _flags = STI_PTR(flags); 1133 unsigned long _inptr = STI_PTR(inptr); 1134 unsigned long _outptr = STI_PTR(outptr); 1135 unsigned long _glob_cfg = STI_PTR(glob_cfg); 1136 int ret; 1137 1138 #ifdef CONFIG_64BIT 1139 /* Check for overflow when using 32bit STI on 64bit kernel. */ 1140 if (WARN_ONCE(_flags>>32 || _inptr>>32 || _outptr>>32 || _glob_cfg>>32, 1141 "Out of 32bit-range pointers!")) 1142 return -1; 1143 #endif 1144 1145 ret = pdc_sti_call(func, _flags, _inptr, _outptr, _glob_cfg); 1146 1147 return ret; 1148 } 1149 1150 MODULE_AUTHOR("Philipp Rumpf, Helge Deller, Thomas Bogendoerfer"); 1151 MODULE_DESCRIPTION("Core STI driver for HP's NGLE series graphics cards in HP PARISC machines"); 1152 MODULE_LICENSE("GPL v2"); 1153 1154