drivers/video/console/sticore.c

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This source file includes following definitions.
sti_init_graph
sti_inq_conf
sti_putc
sti_set
sti_clear
sti_bmove
sti_flush
sti_rom_copy
sti_setup
sti_font_setup
sti_dump_globcfg
sti_dump_outptr
sti_init_glob_cfg
sti_select_fbfont
sti_select_fbfont
sti_select_font
sti_dump_rom
sti_cook_fonts
sti_search_font
sti_bmode_font_raw
sti_bmode_rom_copy
sti_get_bmode_rom
sti_get_wmode_rom
sti_read_rom
sti_try_rom_generic
sticore_check_for_default_sti
sticore_pa_init
sticore_pci_init
sticore_pci_remove
sti_init_roms
sti_get_rom
sti_call
   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) 2001-2013 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 #include <linux/module.h>
  18 #include <linux/types.h>
  19 #include <linux/kernel.h>
  20 #include <linux/slab.h>
  21 #include <linux/init.h>
  22 #include <linux/pci.h>
  23 #include <linux/font.h>
  24 
  25 #include <asm/hardware.h>
  26 #include <asm/page.h>
  27 #include <asm/parisc-device.h>
  28 #include <asm/pdc.h>
  29 #include <asm/cacheflush.h>
  30 #include <asm/grfioctl.h>
  31 
  32 #include "../fbdev/sticore.h"
  33 
  34 #define STI_DRIVERVERSION "Version 0.9b"
  35 
  36 static struct sti_struct *default_sti __read_mostly;
  37 
  38 /* number of STI ROMS found and their ptrs to each struct */
  39 static int num_sti_roms __read_mostly;
  40 static struct sti_struct *sti_roms[MAX_STI_ROMS] __read_mostly;
  41 
  42 
  43 /* The colour indices used by STI are
  44  *   0 - Black
  45  *   1 - White
  46  *   2 - Red
  47  *   3 - Yellow/Brown
  48  *   4 - Green
  49  *   5 - Cyan
  50  *   6 - Blue
  51  *   7 - Magenta
  52  *
  53  * So we have the same colours as VGA (basically one bit each for R, G, B),
  54  * but have to translate them, anyway. */
  55 
  56 static const u8 col_trans[8] = {
  57         0, 6, 4, 5,
  58         2, 7, 3, 1
  59 };
  60 
  61 #define c_fg(sti, c) col_trans[((c>> 8) & 7)]
  62 #define c_bg(sti, c) col_trans[((c>>11) & 7)]
  63 #define c_index(sti, c) ((c) & 0xff)
  64 
  65 static const struct sti_init_flags default_init_flags = {
  66         .wait   = STI_WAIT, 
  67         .reset  = 1,
  68         .text   = 1, 
  69         .nontext = 1,
  70         .no_chg_bet = 1, 
  71         .no_chg_bei = 1, 
  72         .init_cmap_tx = 1,
  73 };
  74 
  75 static int sti_init_graph(struct sti_struct *sti)
  76 {
  77         struct sti_init_inptr *inptr = &sti->sti_data->init_inptr;
  78         struct sti_init_inptr_ext *inptr_ext = &sti->sti_data->init_inptr_ext;
  79         struct sti_init_outptr *outptr = &sti->sti_data->init_outptr;
  80         unsigned long flags;
  81         int ret, err;
  82 
  83         spin_lock_irqsave(&sti->lock, flags);
  84 
  85         memset(inptr, 0, sizeof(*inptr));
  86         inptr->text_planes = 3; /* # of text planes (max 3 for STI) */
  87         memset(inptr_ext, 0, sizeof(*inptr_ext));
  88         inptr->ext_ptr = STI_PTR(inptr_ext);
  89         outptr->errno = 0;
  90 
  91         ret = sti_call(sti, sti->init_graph, &default_init_flags, inptr,
  92                 outptr, sti->glob_cfg);
  93 
  94         if (ret >= 0)
  95                 sti->text_planes = outptr->text_planes;
  96         err = outptr->errno;
  97 
  98         spin_unlock_irqrestore(&sti->lock, flags);
  99 
 100         if (ret < 0) {
 101                 pr_err("STI init_graph failed (ret %d, errno %d)\n", ret, err);
 102                 return -1;
 103         }
 104         
 105         return 0;
 106 }
 107 
 108 static const struct sti_conf_flags default_conf_flags = {
 109         .wait   = STI_WAIT,
 110 };
 111 
 112 static void sti_inq_conf(struct sti_struct *sti)
 113 {
 114         struct sti_conf_inptr *inptr = &sti->sti_data->inq_inptr;
 115         struct sti_conf_outptr *outptr = &sti->sti_data->inq_outptr;
 116         unsigned long flags;
 117         s32 ret;
 118 
 119         outptr->ext_ptr = STI_PTR(&sti->sti_data->inq_outptr_ext);
 120         
 121         do {
 122                 spin_lock_irqsave(&sti->lock, flags);
 123                 memset(inptr, 0, sizeof(*inptr));
 124                 ret = sti_call(sti, sti->inq_conf, &default_conf_flags,
 125                         inptr, outptr, sti->glob_cfg);
 126                 spin_unlock_irqrestore(&sti->lock, flags);
 127         } while (ret == 1);
 128 }
 129 
 130 static const struct sti_font_flags default_font_flags = {
 131         .wait           = STI_WAIT,
 132         .non_text       = 0,
 133 };
 134 
 135 void
 136 sti_putc(struct sti_struct *sti, int c, int y, int x)
 137 {
 138         struct sti_font_inptr *inptr = &sti->sti_data->font_inptr;
 139         struct sti_font_inptr inptr_default = {
 140                 .font_start_addr= STI_PTR(sti->font->raw),
 141                 .index          = c_index(sti, c),
 142                 .fg_color       = c_fg(sti, c),
 143                 .bg_color       = c_bg(sti, c),
 144                 .dest_x         = x * sti->font_width,
 145                 .dest_y         = y * sti->font_height,
 146         };
 147         struct sti_font_outptr *outptr = &sti->sti_data->font_outptr;
 148         s32 ret;
 149         unsigned long flags;
 150 
 151         do {
 152                 spin_lock_irqsave(&sti->lock, flags);
 153                 *inptr = inptr_default;
 154                 ret = sti_call(sti, sti->font_unpmv, &default_font_flags,
 155                         inptr, outptr, sti->glob_cfg);
 156                 spin_unlock_irqrestore(&sti->lock, flags);
 157         } while (ret == 1);
 158 }
 159 
 160 static const struct sti_blkmv_flags clear_blkmv_flags = {
 161         .wait   = STI_WAIT, 
 162         .color  = 1, 
 163         .clear  = 1, 
 164 };
 165 
 166 void
 167 sti_set(struct sti_struct *sti, int src_y, int src_x,
 168         int height, int width, u8 color)
 169 {
 170         struct sti_blkmv_inptr *inptr = &sti->sti_data->blkmv_inptr;
 171         struct sti_blkmv_inptr inptr_default = {
 172                 .fg_color       = color,
 173                 .bg_color       = color,
 174                 .src_x          = src_x,
 175                 .src_y          = src_y,
 176                 .dest_x         = src_x,
 177                 .dest_y         = src_y,
 178                 .width          = width,
 179                 .height         = height,
 180         };
 181         struct sti_blkmv_outptr *outptr = &sti->sti_data->blkmv_outptr;
 182         s32 ret;
 183         unsigned long flags;
 184         
 185         do {
 186                 spin_lock_irqsave(&sti->lock, flags);
 187                 *inptr = inptr_default;
 188                 ret = sti_call(sti, sti->block_move, &clear_blkmv_flags,
 189                         inptr, outptr, sti->glob_cfg);
 190                 spin_unlock_irqrestore(&sti->lock, flags);
 191         } while (ret == 1);
 192 }
 193 
 194 void
 195 sti_clear(struct sti_struct *sti, int src_y, int src_x,
 196           int height, int width, int c)
 197 {
 198         struct sti_blkmv_inptr *inptr = &sti->sti_data->blkmv_inptr;
 199         struct sti_blkmv_inptr inptr_default = {
 200                 .fg_color       = c_fg(sti, c),
 201                 .bg_color       = c_bg(sti, c),
 202                 .src_x          = src_x * sti->font_width,
 203                 .src_y          = src_y * sti->font_height,
 204                 .dest_x         = src_x * sti->font_width,
 205                 .dest_y         = src_y * sti->font_height,
 206                 .width          = width * sti->font_width,
 207                 .height         = height* sti->font_height,
 208         };
 209         struct sti_blkmv_outptr *outptr = &sti->sti_data->blkmv_outptr;
 210         s32 ret;
 211         unsigned long flags;
 212 
 213         do {
 214                 spin_lock_irqsave(&sti->lock, flags);
 215                 *inptr = inptr_default;
 216                 ret = sti_call(sti, sti->block_move, &clear_blkmv_flags,
 217                         inptr, outptr, sti->glob_cfg);
 218                 spin_unlock_irqrestore(&sti->lock, flags);
 219         } while (ret == 1);
 220 }
 221 
 222 static const struct sti_blkmv_flags default_blkmv_flags = {
 223         .wait = STI_WAIT, 
 224 };
 225 
 226 void
 227 sti_bmove(struct sti_struct *sti, int src_y, int src_x,
 228           int dst_y, int dst_x, int height, int width)
 229 {
 230         struct sti_blkmv_inptr *inptr = &sti->sti_data->blkmv_inptr;
 231         struct sti_blkmv_inptr inptr_default = {
 232                 .src_x          = src_x * sti->font_width,
 233                 .src_y          = src_y * sti->font_height,
 234                 .dest_x         = dst_x * sti->font_width,
 235                 .dest_y         = dst_y * sti->font_height,
 236                 .width          = width * sti->font_width,
 237                 .height         = height* sti->font_height,
 238         };
 239         struct sti_blkmv_outptr *outptr = &sti->sti_data->blkmv_outptr;
 240         s32 ret;
 241         unsigned long flags;
 242 
 243         do {
 244                 spin_lock_irqsave(&sti->lock, flags);
 245                 *inptr = inptr_default;
 246                 ret = sti_call(sti, sti->block_move, &default_blkmv_flags,
 247                         inptr, outptr, sti->glob_cfg);
 248                 spin_unlock_irqrestore(&sti->lock, flags);
 249         } while (ret == 1);
 250 }
 251 
 252 
 253 static void sti_flush(unsigned long start, unsigned long end)
 254 {
 255         flush_icache_range(start, end);
 256 }
 257 
 258 static void sti_rom_copy(unsigned long base, unsigned long count, void *dest)
 259 {
 260         unsigned long dest_start = (unsigned long) dest;
 261 
 262         /* this still needs to be revisited (see arch/parisc/mm/init.c:246) ! */
 263         while (count >= 4) {
 264                 count -= 4;
 265                 *(u32 *)dest = gsc_readl(base);
 266                 base += 4;
 267                 dest += 4;
 268         }
 269         while (count) {
 270                 count--;
 271                 *(u8 *)dest = gsc_readb(base);
 272                 base++;
 273                 dest++;
 274         }
 275 
 276         sti_flush(dest_start, (unsigned long)dest);
 277 }
 278 
 279 
 280 
 281 
 282 static char default_sti_path[21] __read_mostly;
 283 
 284 #ifndef MODULE
 285 static int __init sti_setup(char *str)
 286 {
 287         if (str)
 288                 strlcpy (default_sti_path, str, sizeof (default_sti_path));
 289         
 290         return 1;
 291 }
 292 
 293 /*      Assuming the machine has multiple STI consoles (=graphic cards) which
 294  *      all get detected by sticon, the user may define with the linux kernel
 295  *      parameter sti=<x> which of them will be the initial boot-console.
 296  *      <x> is a number between 0 and MAX_STI_ROMS, with 0 as the default 
 297  *      STI screen.
 298  */
 299 __setup("sti=", sti_setup);
 300 #endif
 301 
 302 
 303 
 304 static char *font_name[MAX_STI_ROMS];
 305 static int font_index[MAX_STI_ROMS],
 306            font_height[MAX_STI_ROMS],
 307            font_width[MAX_STI_ROMS];
 308 #ifndef MODULE
 309 static int sti_font_setup(char *str)
 310 {
 311         char *x;
 312         int i = 0;
 313 
 314         /* we accept sti_font=VGA8x16, sti_font=10x20, sti_font=10*20 
 315          * or sti_font=7 style command lines. */
 316 
 317         while (i<MAX_STI_ROMS && str && *str) {
 318                 if (*str>='0' && *str<='9') {
 319                         if ((x = strchr(str, 'x')) || (x = strchr(str, '*'))) {
 320                                 font_height[i] = simple_strtoul(str, NULL, 0);
 321                                 font_width[i] = simple_strtoul(x+1, NULL, 0);
 322                         } else {
 323                                 font_index[i] = simple_strtoul(str, NULL, 0);
 324                         }
 325                 } else {
 326                         font_name[i] = str;     /* fb font name */
 327                 }
 328 
 329                 if ((x = strchr(str, ',')))
 330                         *x++ = 0;
 331                 str = x;
 332 
 333                 i++;
 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>
 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         DPRINTK((KERN_INFO
 368                 "%d text planes\n"
 369                 "%4d x %4d screen resolution\n"
 370                 "%4d x %4d offscreen\n"
 371                 "%4d x %4d layout\n"
 372                 "regions at %08x %08x %08x %08x\n"
 373                 "regions at %08x %08x %08x %08x\n"
 374                 "reent_lvl %d\n"
 375                 "save_addr %08x\n",
 376                 glob_cfg->text_planes,
 377                 glob_cfg->onscreen_x, glob_cfg->onscreen_y,
 378                 glob_cfg->offscreen_x, glob_cfg->offscreen_y,
 379                 glob_cfg->total_x, glob_cfg->total_y,
 380                 glob_cfg->region_ptrs[0], glob_cfg->region_ptrs[1],
 381                 glob_cfg->region_ptrs[2], glob_cfg->region_ptrs[3],
 382                 glob_cfg->region_ptrs[4], glob_cfg->region_ptrs[5],
 383                 glob_cfg->region_ptrs[6], glob_cfg->region_ptrs[7],
 384                 glob_cfg->reent_lvl,
 385                 glob_cfg->save_addr));
 386 
 387         /* dump extended cfg */ 
 388         cfg = PTR_STI((unsigned long)glob_cfg->ext_ptr);
 389         DPRINTK(( KERN_INFO
 390                 "monitor %d\n"
 391                 "in friendly mode: %d\n"
 392                 "power consumption %d watts\n"
 393                 "freq ref %d\n"
 394                 "sti_mem_addr %08x (size=%d bytes)\n",
 395                 cfg->curr_mon,
 396                 cfg->friendly_boot,
 397                 cfg->power,
 398                 cfg->freq_ref,
 399                 cfg->sti_mem_addr, sti_mem_request));
 400 }
 401 
 402 static void sti_dump_outptr(struct sti_struct *sti)
 403 {
 404         DPRINTK((KERN_INFO
 405                 "%d bits per pixel\n"
 406                 "%d used bits\n"
 407                 "%d planes\n"
 408                 "attributes %08x\n",
 409                  sti->sti_data->inq_outptr.bits_per_pixel,
 410                  sti->sti_data->inq_outptr.bits_used,
 411                  sti->sti_data->inq_outptr.planes,
 412                  sti->sti_data->inq_outptr.attributes));
 413 }
 414 
 415 static int sti_init_glob_cfg(struct sti_struct *sti, unsigned long rom_address,
 416                              unsigned long hpa)
 417 {
 418         struct sti_glob_cfg *glob_cfg;
 419         struct sti_glob_cfg_ext *glob_cfg_ext;
 420         void *save_addr;
 421         void *sti_mem_addr;
 422         int i, size;
 423 
 424         if (sti->sti_mem_request < 256)
 425                 sti->sti_mem_request = 256; /* STI default */
 426 
 427         size = sizeof(struct sti_all_data) + sti->sti_mem_request - 256;
 428 
 429         sti->sti_data = kzalloc(size, STI_LOWMEM);
 430         if (!sti->sti_data)
 431                 return -ENOMEM;
 432 
 433         glob_cfg        = &sti->sti_data->glob_cfg;
 434         glob_cfg_ext    = &sti->sti_data->glob_cfg_ext;
 435         save_addr       = &sti->sti_data->save_addr;
 436         sti_mem_addr    = &sti->sti_data->sti_mem_addr;
 437 
 438         glob_cfg->ext_ptr = STI_PTR(glob_cfg_ext);
 439         glob_cfg->save_addr = STI_PTR(save_addr);
 440         for (i=0; i<8; i++) {
 441                 unsigned long newhpa, len;
 442                
 443                 if (sti->pd) {
 444                         unsigned char offs = sti->rm_entry[i];
 445                                 
 446                         if (offs == 0)
 447                                 continue;
 448                         if (offs != PCI_ROM_ADDRESS &&
 449                             (offs < PCI_BASE_ADDRESS_0 ||
 450                              offs > PCI_BASE_ADDRESS_5)) {
 451                                 printk (KERN_WARNING
 452                                         "STI pci region mapping for region %d (%02x) can't be mapped\n",
 453                                         i,sti->rm_entry[i]);
 454                                 continue;
 455                         }
 456                         newhpa = pci_resource_start (sti->pd, (offs - PCI_BASE_ADDRESS_0) / 4);
 457                 } else
 458                         newhpa = (i == 0) ? rom_address : hpa;
 459 
 460                 sti->regions_phys[i] =
 461                         REGION_OFFSET_TO_PHYS(sti->regions[i], newhpa);
 462                 
 463                 len = sti->regions[i].region_desc.length * 4096;
 464                 if (len)
 465                         glob_cfg->region_ptrs[i] = sti->regions_phys[i];
 466                 
 467                 DPRINTK(("region #%d: phys %08lx, region_ptr %08x, len=%lukB, "
 468                          "btlb=%d, sysonly=%d, cache=%d, last=%d\n",
 469                         i, sti->regions_phys[i], glob_cfg->region_ptrs[i],
 470                         len/1024,
 471                         sti->regions[i].region_desc.btlb,
 472                         sti->regions[i].region_desc.sys_only,
 473                         sti->regions[i].region_desc.cache, 
 474                         sti->regions[i].region_desc.last));
 475 
 476                 /* last entry reached ? */
 477                 if (sti->regions[i].region_desc.last)
 478                         break;
 479         }
 480 
 481         if (++i<8 && sti->regions[i].region)
 482                 printk(KERN_WARNING "%s: *future ptr (0x%8x) not yet supported !\n",
 483                                 __FILE__, sti->regions[i].region);
 484 
 485         glob_cfg_ext->sti_mem_addr = STI_PTR(sti_mem_addr);
 486 
 487         sti->glob_cfg = glob_cfg;
 488         
 489         return 0;
 490 }
 491 
 492 #ifdef CONFIG_FONT_SUPPORT
 493 static struct sti_cooked_font *
 494 sti_select_fbfont(struct sti_cooked_rom *cooked_rom, const char *fbfont_name)
 495 {
 496         const struct font_desc *fbfont = NULL;
 497         unsigned int size, bpc;
 498         void *dest;
 499         struct sti_rom_font *nf;
 500         struct sti_cooked_font *cooked_font;
 501         
 502         if (fbfont_name && strlen(fbfont_name))
 503                 fbfont = find_font(fbfont_name);
 504         if (!fbfont)
 505                 fbfont = get_default_font(1024,768, ~(u32)0, ~(u32)0);
 506         if (!fbfont)
 507                 return NULL;
 508 
 509         pr_info("STI selected %dx%d framebuffer font %s for sticon\n",
 510                         fbfont->width, fbfont->height, fbfont->name);
 511                         
 512         bpc = ((fbfont->width+7)/8) * fbfont->height; 
 513         size = bpc * 256;
 514         size += sizeof(struct sti_rom_font);
 515 
 516         nf = kzalloc(size, STI_LOWMEM);
 517         if (!nf)
 518                 return NULL;
 519 
 520         nf->first_char = 0;
 521         nf->last_char = 255;
 522         nf->width = fbfont->width;
 523         nf->height = fbfont->height;
 524         nf->font_type = STI_FONT_HPROMAN8;
 525         nf->bytes_per_char = bpc;
 526         nf->next_font = 0;
 527         nf->underline_height = 1;
 528         nf->underline_pos = fbfont->height - nf->underline_height;
 529 
 530         dest = nf;
 531         dest += sizeof(struct sti_rom_font);
 532         memcpy(dest, fbfont->data, bpc*256);
 533 
 534         cooked_font = kzalloc(sizeof(*cooked_font), GFP_KERNEL);
 535         if (!cooked_font) {
 536                 kfree(nf);
 537                 return NULL;
 538         }
 539         
 540         cooked_font->raw = nf;
 541         cooked_font->next_font = NULL;
 542 
 543         cooked_rom->font_start = cooked_font;
 544 
 545         return cooked_font;
 546 }
 547 #else
 548 static struct sti_cooked_font *
 549 sti_select_fbfont(struct sti_cooked_rom *cooked_rom, const char *fbfont_name)
 550 {
 551         return NULL;
 552 }
 553 #endif
 554 
 555 static struct sti_cooked_font *sti_select_font(struct sti_cooked_rom *rom,
 556                 int (*search_font_fnc)(struct sti_cooked_rom *, int, int))
 557 {
 558         struct sti_cooked_font *font;
 559         int i;
 560         int index = num_sti_roms;
 561 
 562         /* check for framebuffer-font first */
 563         if ((font = sti_select_fbfont(rom, font_name[index])))
 564                 return font;
 565 
 566         if (font_width[index] && font_height[index])
 567                 font_index[index] = search_font_fnc(rom, 
 568                                 font_height[index], font_width[index]);
 569 
 570         for (font = rom->font_start, i = font_index[index];
 571             font && (i > 0);
 572             font = font->next_font, i--);
 573 
 574         if (font)
 575                 return font;
 576         else
 577                 return rom->font_start;
 578 }
 579 
 580 
 581 static void sti_dump_rom(struct sti_rom *rom)
 582 {
 583         printk(KERN_INFO "    id %04x-%04x, conforms to spec rev. %d.%02x\n",
 584                 rom->graphics_id[0], 
 585                 rom->graphics_id[1],
 586                 rom->revno[0] >> 4, 
 587                 rom->revno[0] & 0x0f);
 588         DPRINTK(("      supports %d monitors\n", rom->num_mons));
 589         DPRINTK(("      font start %08x\n", rom->font_start));
 590         DPRINTK(("      region list %08x\n", rom->region_list));
 591         DPRINTK(("      init_graph %08x\n", rom->init_graph));
 592         DPRINTK(("      bus support %02x\n", rom->bus_support));
 593         DPRINTK(("      ext bus support %02x\n", rom->ext_bus_support));
 594         DPRINTK(("      alternate code type %d\n", rom->alt_code_type));
 595 }
 596 
 597 
 598 static int sti_cook_fonts(struct sti_cooked_rom *cooked_rom,
 599                           struct sti_rom *raw_rom)
 600 {
 601         struct sti_rom_font *raw_font, *font_start;
 602         struct sti_cooked_font *cooked_font;
 603         
 604         cooked_font = kzalloc(sizeof(*cooked_font), GFP_KERNEL);
 605         if (!cooked_font)
 606                 return 0;
 607 
 608         cooked_rom->font_start = cooked_font;
 609 
 610         raw_font = ((void *)raw_rom) + (raw_rom->font_start);
 611 
 612         font_start = raw_font;
 613         cooked_font->raw = raw_font;
 614 
 615         while (raw_font->next_font) {
 616                 raw_font = ((void *)font_start) + (raw_font->next_font);
 617 
 618                 cooked_font->next_font = kzalloc(sizeof(*cooked_font), GFP_KERNEL);
 619                 if (!cooked_font->next_font)
 620                         return 1;
 621 
 622                 cooked_font = cooked_font->next_font;
 623 
 624                 cooked_font->raw = raw_font;
 625         }
 626 
 627         cooked_font->next_font = NULL;
 628         return 1;
 629 }
 630 
 631 
 632 static int sti_search_font(struct sti_cooked_rom *rom, int height, int width)
 633 {
 634         struct sti_cooked_font *font;
 635         int i = 0;
 636         
 637         for (font = rom->font_start; font; font = font->next_font, i++) {
 638                 if ((font->raw->width == width) &&
 639                     (font->raw->height == height))
 640                         return i;
 641         }
 642         return 0;
 643 }
 644 
 645 #define BMODE_RELOCATE(offset)          offset = (offset) / 4;
 646 #define BMODE_LAST_ADDR_OFFS            0x50
 647 
 648 static void *sti_bmode_font_raw(struct sti_cooked_font *f)
 649 {
 650         unsigned char *n, *p, *q;
 651         int size = f->raw->bytes_per_char*256+sizeof(struct sti_rom_font);
 652         
 653         n = kcalloc(4, size, STI_LOWMEM);
 654         if (!n)
 655                 return NULL;
 656         p = n + 3;
 657         q = (unsigned char *)f->raw;
 658         while (size--) {
 659                 *p = *q++;
 660                 p+=4;
 661         }
 662         return n + 3;
 663 }
 664 
 665 static void sti_bmode_rom_copy(unsigned long base, unsigned long count,
 666                                void *dest)
 667 {
 668         unsigned long dest_start = (unsigned long) dest;
 669 
 670         while (count) {
 671                 count--;
 672                 *(u8 *)dest = gsc_readl(base);
 673                 base += 4;
 674                 dest++;
 675         }
 676 
 677         sti_flush(dest_start, (unsigned long)dest);
 678 }
 679 
 680 static struct sti_rom *sti_get_bmode_rom (unsigned long address)
 681 {
 682         struct sti_rom *raw;
 683         u32 size;
 684         struct sti_rom_font *raw_font, *font_start;
 685 
 686         sti_bmode_rom_copy(address + BMODE_LAST_ADDR_OFFS, sizeof(size), &size);
 687 
 688         size = (size+3) / 4;
 689         raw = kmalloc(size, STI_LOWMEM);
 690         if (raw) {
 691                 sti_bmode_rom_copy(address, size, raw);
 692                 memmove (&raw->res004, &raw->type[0], 0x3c);
 693                 raw->type[3] = raw->res004;
 694 
 695                 BMODE_RELOCATE (raw->region_list);
 696                 BMODE_RELOCATE (raw->font_start);
 697 
 698                 BMODE_RELOCATE (raw->init_graph);
 699                 BMODE_RELOCATE (raw->state_mgmt);
 700                 BMODE_RELOCATE (raw->font_unpmv);
 701                 BMODE_RELOCATE (raw->block_move);
 702                 BMODE_RELOCATE (raw->inq_conf);
 703 
 704                 raw_font = ((void *)raw) + raw->font_start;
 705                 font_start = raw_font;
 706                 
 707                 while (raw_font->next_font) {
 708                         BMODE_RELOCATE (raw_font->next_font);
 709                         raw_font = ((void *)font_start) + raw_font->next_font;
 710                 }
 711         }
 712         return raw;
 713 }
 714 
 715 static struct sti_rom *sti_get_wmode_rom(unsigned long address)
 716 {
 717         struct sti_rom *raw;
 718         unsigned long size;
 719 
 720         /* read the ROM size directly from the struct in ROM */ 
 721         size = gsc_readl(address + offsetof(struct sti_rom,last_addr));
 722 
 723         raw = kmalloc(size, STI_LOWMEM);
 724         if (raw)
 725                 sti_rom_copy(address, size, raw);
 726 
 727         return raw;
 728 }
 729 
 730 static int sti_read_rom(int wordmode, struct sti_struct *sti,
 731                         unsigned long address)
 732 {
 733         struct sti_cooked_rom *cooked;
 734         struct sti_rom *raw = NULL;
 735         unsigned long revno;
 736 
 737         cooked = kmalloc(sizeof *cooked, GFP_KERNEL);
 738         if (!cooked)
 739                 goto out_err;
 740 
 741         if (wordmode)
 742                 raw = sti_get_wmode_rom (address);
 743         else
 744                 raw = sti_get_bmode_rom (address);
 745 
 746         if (!raw)
 747                 goto out_err;
 748 
 749         if (!sti_cook_fonts(cooked, raw)) {
 750                 printk(KERN_ERR "No font found for STI at %08lx\n", address);
 751                 goto out_err;
 752         }
 753 
 754         if (raw->region_list)
 755                 memcpy(sti->regions, ((void *)raw)+raw->region_list, sizeof(sti->regions));
 756 
 757         address = (unsigned long) STI_PTR(raw);
 758 
 759         pr_info("STI ROM supports 32 %sbit firmware functions.\n",
 760                 raw->alt_code_type == ALT_CODE_TYPE_PA_RISC_64
 761                 ? "and 64 " : "");
 762 
 763         sti->font_unpmv = address + (raw->font_unpmv & 0x03ffffff);
 764         sti->block_move = address + (raw->block_move & 0x03ffffff);
 765         sti->init_graph = address + (raw->init_graph & 0x03ffffff);
 766         sti->inq_conf   = address + (raw->inq_conf   & 0x03ffffff);
 767 
 768         sti->rom = cooked;
 769         sti->rom->raw = raw;
 770         
 771         sti->font = sti_select_font(sti->rom, sti_search_font);
 772         sti->font_width = sti->font->raw->width;
 773         sti->font_height = sti->font->raw->height;
 774         if (!wordmode)
 775                 sti->font->raw = sti_bmode_font_raw(sti->font);
 776 
 777         sti->sti_mem_request = raw->sti_mem_req;
 778         sti->graphics_id[0] = raw->graphics_id[0];
 779         sti->graphics_id[1] = raw->graphics_id[1];
 780         
 781         sti_dump_rom(raw);
 782 
 783         /* check if the ROM routines in this card are compatible */
 784         if (wordmode || sti->graphics_id[1] != 0x09A02587)
 785                 goto ok;
 786 
 787         revno = (raw->revno[0] << 8) | raw->revno[1];
 788 
 789         switch (sti->graphics_id[0]) {
 790         case S9000_ID_HCRX:
 791                 /* HyperA or HyperB ? */
 792                 if (revno == 0x8408 || revno == 0x840b)
 793                         goto msg_not_supported;
 794                 break;
 795         case CRT_ID_THUNDER:
 796                 if (revno == 0x8509)
 797                         goto msg_not_supported;
 798                 break;
 799         case CRT_ID_THUNDER2:
 800                 if (revno == 0x850c)
 801                         goto msg_not_supported;
 802         }
 803 ok:
 804         return 1;
 805 
 806 msg_not_supported:
 807         printk(KERN_ERR "Sorry, this GSC/STI card is not yet supported.\n");
 808         printk(KERN_ERR "Please see http://parisc-linux.org/faq/"
 809                         "graphics-howto.html for more info.\n");
 810         /* fall through */
 811 out_err:
 812         kfree(raw);
 813         kfree(cooked);
 814         return 0;
 815 }
 816 
 817 static struct sti_struct *sti_try_rom_generic(unsigned long address,
 818                                               unsigned long hpa,
 819                                               struct pci_dev *pd)
 820 {
 821         struct sti_struct *sti;
 822         int ok;
 823         u32 sig;
 824 
 825         if (num_sti_roms >= MAX_STI_ROMS) {
 826                 printk(KERN_WARNING "maximum number of STI ROMS reached !\n");
 827                 return NULL;
 828         }
 829         
 830         sti = kzalloc(sizeof(*sti), GFP_KERNEL);
 831         if (!sti)
 832                 return NULL;
 833 
 834         spin_lock_init(&sti->lock);
 835 
 836 test_rom:
 837         /* if we can't read the ROM, bail out early.  Not being able
 838          * to read the hpa is okay, for romless sti */
 839         if (pdc_add_valid(address))
 840                 goto out_err;
 841 
 842         sig = gsc_readl(address);
 843 
 844         /* check for a PCI ROM structure */
 845         if ((le32_to_cpu(sig)==0xaa55)) {
 846                 unsigned int i, rm_offset;
 847                 u32 *rm;
 848                 i = gsc_readl(address+0x04);
 849                 if (i != 1) {
 850                         /* The ROM could have multiple architecture 
 851                          * dependent images (e.g. i386, parisc,...) */
 852                         printk(KERN_WARNING 
 853                                 "PCI ROM is not a STI ROM type image (0x%8x)\n", i);
 854                         goto out_err;
 855                 }
 856                 
 857                 sti->pd = pd;
 858 
 859                 i = gsc_readl(address+0x0c);
 860                 DPRINTK(("PCI ROM size (from header) = %d kB\n",
 861                         le16_to_cpu(i>>16)*512/1024));
 862                 rm_offset = le16_to_cpu(i & 0xffff);
 863                 if (rm_offset) { 
 864                         /* read 16 bytes from the pci region mapper array */
 865                         rm = (u32*) &sti->rm_entry;
 866                         *rm++ = gsc_readl(address+rm_offset+0x00);
 867                         *rm++ = gsc_readl(address+rm_offset+0x04);
 868                         *rm++ = gsc_readl(address+rm_offset+0x08);
 869                         *rm++ = gsc_readl(address+rm_offset+0x0c);
 870                         DPRINTK(("PCI region Mapper offset = %08x: ",
 871                                 rm_offset));
 872                         for (i=0; i<16; i++)
 873                                 DPRINTK(("%02x ", sti->rm_entry[i]));
 874                         DPRINTK(("\n"));
 875                 }
 876 
 877                 address += le32_to_cpu(gsc_readl(address+8));
 878                 DPRINTK(("sig %04x, PCI STI ROM at %08lx\n", sig, address));
 879                 goto test_rom;
 880         }
 881         
 882         ok = 0;
 883         
 884         if ((sig & 0xff) == 0x01) {
 885                 DPRINTK(("    byte mode ROM at %08lx, hpa at %08lx\n",
 886                        address, hpa));
 887                 ok = sti_read_rom(0, sti, address);
 888         }
 889 
 890         if ((sig & 0xffff) == 0x0303) {
 891                 DPRINTK(("    word mode ROM at %08lx, hpa at %08lx\n",
 892                        address, hpa));
 893                 ok = sti_read_rom(1, sti, address);
 894         }
 895 
 896         if (!ok)
 897                 goto out_err;
 898 
 899         if (sti_init_glob_cfg(sti, address, hpa))
 900                 goto out_err; /* not enough memory */
 901 
 902         /* disable STI PCI ROM. ROM and card RAM overlap and
 903          * leaving it enabled would force HPMCs
 904          */
 905         if (sti->pd) {
 906                 unsigned long rom_base;
 907                 rom_base = pci_resource_start(sti->pd, PCI_ROM_RESOURCE);       
 908                 pci_write_config_dword(sti->pd, PCI_ROM_ADDRESS, rom_base & ~PCI_ROM_ADDRESS_ENABLE);
 909                 DPRINTK((KERN_DEBUG "STI PCI ROM disabled\n"));
 910         }
 911 
 912         if (sti_init_graph(sti))
 913                 goto out_err;
 914 
 915         sti_inq_conf(sti);
 916         sti_dump_globcfg(sti->glob_cfg, sti->sti_mem_request);
 917         sti_dump_outptr(sti);
 918         
 919         pr_info("    graphics card name: %s\n",
 920                 sti->sti_data->inq_outptr.dev_name);
 921 
 922         sti_roms[num_sti_roms] = sti;
 923         num_sti_roms++;
 924         
 925         return sti;
 926 
 927 out_err:
 928         kfree(sti);
 929         return NULL;
 930 }
 931 
 932 static void sticore_check_for_default_sti(struct sti_struct *sti, char *path)
 933 {
 934         if (strcmp (path, default_sti_path) == 0)
 935                 default_sti = sti;
 936 }
 937 
 938 /*
 939  * on newer systems PDC gives the address of the ROM 
 940  * in the additional address field addr[1] while on
 941  * older Systems the PDC stores it in page0->proc_sti 
 942  */
 943 static int __init sticore_pa_init(struct parisc_device *dev)
 944 {
 945         char pa_path[21];
 946         struct sti_struct *sti = NULL;
 947         int hpa = dev->hpa.start;
 948 
 949         if (dev->num_addrs && dev->addr[0])
 950                 sti = sti_try_rom_generic(dev->addr[0], hpa, NULL);
 951         if (!sti)
 952                 sti = sti_try_rom_generic(hpa, hpa, NULL);
 953         if (!sti)
 954                 sti = sti_try_rom_generic(PAGE0->proc_sti, hpa, NULL);
 955         if (!sti)
 956                 return 1;
 957 
 958         print_pa_hwpath(dev, pa_path);
 959         sticore_check_for_default_sti(sti, pa_path);
 960         return 0;
 961 }
 962 
 963 
 964 static int sticore_pci_init(struct pci_dev *pd, const struct pci_device_id *ent)
 965 {
 966 #ifdef CONFIG_PCI
 967         unsigned long fb_base, rom_base;
 968         unsigned int fb_len, rom_len;
 969         int err;
 970         struct sti_struct *sti;
 971         
 972         err = pci_enable_device(pd);
 973         if (err < 0) {
 974                 dev_err(&pd->dev, "Cannot enable PCI device\n");
 975                 return err;
 976         }
 977 
 978         fb_base = pci_resource_start(pd, 0);
 979         fb_len = pci_resource_len(pd, 0);
 980         rom_base = pci_resource_start(pd, PCI_ROM_RESOURCE);
 981         rom_len = pci_resource_len(pd, PCI_ROM_RESOURCE);
 982         if (rom_base) {
 983                 pci_write_config_dword(pd, PCI_ROM_ADDRESS, rom_base | PCI_ROM_ADDRESS_ENABLE);
 984                 DPRINTK((KERN_DEBUG "STI PCI ROM enabled at 0x%08lx\n", rom_base));
 985         }
 986 
 987         printk(KERN_INFO "STI PCI graphic ROM found at %08lx (%u kB), fb at %08lx (%u MB)\n",
 988                 rom_base, rom_len/1024, fb_base, fb_len/1024/1024);
 989 
 990         DPRINTK((KERN_DEBUG "Trying PCI STI ROM at %08lx, PCI hpa at %08lx\n",
 991                     rom_base, fb_base));
 992 
 993         sti = sti_try_rom_generic(rom_base, fb_base, pd);
 994         if (sti) {
 995                 char pa_path[30];
 996                 print_pci_hwpath(pd, pa_path);
 997                 sticore_check_for_default_sti(sti, pa_path);
 998         }
 999         
1000         if (!sti) {
1001                 printk(KERN_WARNING "Unable to handle STI device '%s'\n",
1002                         pci_name(pd));
1003                 return -ENODEV;
1004         }
1005 #endif /* CONFIG_PCI */
1006 
1007         return 0;
1008 }
1009 
1010 
1011 static void __exit sticore_pci_remove(struct pci_dev *pd)
1012 {
1013         BUG();
1014 }
1015 
1016 
1017 static struct pci_device_id sti_pci_tbl[] = {
1018         { PCI_DEVICE(PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_VISUALIZE_EG) },
1019         { PCI_DEVICE(PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_VISUALIZE_FX6) },
1020         { PCI_DEVICE(PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_VISUALIZE_FX4) },
1021         { PCI_DEVICE(PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_VISUALIZE_FX2) },
1022         { PCI_DEVICE(PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_VISUALIZE_FXE) },
1023         { 0, } /* terminate list */
1024 };
1025 MODULE_DEVICE_TABLE(pci, sti_pci_tbl);
1026 
1027 static struct pci_driver pci_sti_driver = {
1028         .name           = "sti",
1029         .id_table       = sti_pci_tbl,
1030         .probe          = sticore_pci_init,
1031         .remove         = __exit_p(sticore_pci_remove),
1032 };
1033 
1034 static struct parisc_device_id sti_pa_tbl[] = {
1035         { HPHW_FIO, HVERSION_REV_ANY_ID, HVERSION_ANY_ID, 0x00077 },
1036         { HPHW_FIO, HVERSION_REV_ANY_ID, HVERSION_ANY_ID, 0x00085 },
1037         { 0, }
1038 };
1039 MODULE_DEVICE_TABLE(parisc, sti_pa_tbl);
1040 
1041 static struct parisc_driver pa_sti_driver __refdata = {
1042         .name           = "sti",
1043         .id_table       = sti_pa_tbl,
1044         .probe          = sticore_pa_init,
1045 };
1046 
1047 
1048 /*
1049  * sti_init_roms() - detects all STI ROMs and stores them in sti_roms[]
1050  */
1051 
1052 static int sticore_initialized __read_mostly;
1053 
1054 static void sti_init_roms(void)
1055 {
1056         if (sticore_initialized)
1057                 return;
1058 
1059         sticore_initialized = 1;
1060 
1061         printk(KERN_INFO "STI GSC/PCI core graphics driver "
1062                         STI_DRIVERVERSION "\n");
1063 
1064         /* Register drivers for native & PCI cards */
1065         register_parisc_driver(&pa_sti_driver);
1066         WARN_ON(pci_register_driver(&pci_sti_driver));
1067 
1068         /* if we didn't find the given default sti, take the first one */
1069         if (!default_sti)
1070                 default_sti = sti_roms[0];
1071 
1072 }
1073 
1074 /*
1075  * index = 0 gives default sti
1076  * index > 0 gives other stis in detection order
1077  */
1078 struct sti_struct * sti_get_rom(unsigned int index)
1079 {
1080         if (!sticore_initialized)
1081                 sti_init_roms();
1082 
1083         if (index == 0)
1084                 return default_sti;
1085 
1086         if (index > num_sti_roms)
1087                 return NULL;
1088 
1089         return sti_roms[index-1];
1090 }
1091 EXPORT_SYMBOL(sti_get_rom);
1092 
1093 
1094 int sti_call(const struct sti_struct *sti, unsigned long func,
1095                 const void *flags, void *inptr, void *outptr,
1096                 struct sti_glob_cfg *glob_cfg)
1097 {
1098         unsigned long _flags = STI_PTR(flags);
1099         unsigned long _inptr = STI_PTR(inptr);
1100         unsigned long _outptr = STI_PTR(outptr);
1101         unsigned long _glob_cfg = STI_PTR(glob_cfg);
1102         int ret;
1103 
1104 #ifdef CONFIG_64BIT
1105         /* Check for overflow when using 32bit STI on 64bit kernel. */
1106         if (WARN_ONCE(_flags>>32 || _inptr>>32 || _outptr>>32 || _glob_cfg>>32,
1107                         "Out of 32bit-range pointers!"))
1108                 return -1;
1109 #endif
1110 
1111         ret = pdc_sti_call(func, _flags, _inptr, _outptr, _glob_cfg);
1112 
1113         return ret;
1114 }
1115 
1116 MODULE_AUTHOR("Philipp Rumpf, Helge Deller, Thomas Bogendoerfer");
1117 MODULE_DESCRIPTION("Core STI driver for HP's NGLE series graphics cards in HP PARISC machines");
1118 MODULE_LICENSE("GPL v2");
1119
/* [<][>][^][v][top][bottom][index][help] */
root/drivers/video/console/sticore.c

DEFINITIONS
