Version:  2.0.40 2.2.26 2.4.37 2.6.39 3.0 3.1 3.2 3.3 3.4 3.5 3.6 3.7 3.8 3.9 3.10 3.11 3.12 3.13 3.14 3.15

Linux/drivers/video/console/sticore.c

  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) 2001-2013 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 "../fbdev/sticore.h"
 32 
 33 #define STI_DRIVERVERSION "Version 0.9b"
 34 
 35 static struct sti_struct *default_sti __read_mostly;
 36 
 37 /* number of STI ROMS found and their ptrs to each struct */
 38 static int num_sti_roms __read_mostly;
 39 static 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 
 55 static 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 
 64 static 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 
 74 static int sti_init_graph(struct sti_struct *sti)
 75 {
 76         struct sti_init_inptr *inptr = &sti->sti_data->init_inptr;
 77         struct sti_init_inptr_ext *inptr_ext = &sti->sti_data->init_inptr_ext;
 78         struct sti_init_outptr *outptr = &sti->sti_data->init_outptr;
 79         unsigned long flags;
 80         int ret, err;
 81 
 82         spin_lock_irqsave(&sti->lock, flags);
 83 
 84         memset(inptr, 0, sizeof(*inptr));
 85         inptr->text_planes = 3; /* # of text planes (max 3 for STI) */
 86         memset(inptr_ext, 0, sizeof(*inptr_ext));
 87         inptr->ext_ptr = STI_PTR(inptr_ext);
 88         outptr->errno = 0;
 89 
 90         ret = sti_call(sti, sti->init_graph, &default_init_flags, inptr,
 91                 outptr, sti->glob_cfg);
 92 
 93         if (ret >= 0)
 94                 sti->text_planes = outptr->text_planes;
 95         err = outptr->errno;
 96 
 97         spin_unlock_irqrestore(&sti->lock, flags);
 98 
 99         if (ret < 0) {
100                 pr_err("STI init_graph failed (ret %d, errno %d)\n", ret, err);
101                 return -1;
102         }
103         
104         return 0;
105 }
106 
107 static const struct sti_conf_flags default_conf_flags = {
108         .wait   = STI_WAIT,
109 };
110 
111 static void sti_inq_conf(struct sti_struct *sti)
112 {
113         struct sti_conf_inptr *inptr = &sti->sti_data->inq_inptr;
114         struct sti_conf_outptr *outptr = &sti->sti_data->inq_outptr;
115         unsigned long flags;
116         s32 ret;
117 
118         outptr->ext_ptr = STI_PTR(&sti->sti_data->inq_outptr_ext);
119         
120         do {
121                 spin_lock_irqsave(&sti->lock, flags);
122                 memset(inptr, 0, sizeof(*inptr));
123                 ret = sti_call(sti, sti->inq_conf, &default_conf_flags,
124                         inptr, outptr, sti->glob_cfg);
125                 spin_unlock_irqrestore(&sti->lock, flags);
126         } while (ret == 1);
127 }
128 
129 static const struct sti_font_flags default_font_flags = {
130         .wait           = STI_WAIT,
131         .non_text       = 0,
132 };
133 
134 void
135 sti_putc(struct sti_struct *sti, int c, int y, int x)
136 {
137         struct sti_font_inptr *inptr = &sti->sti_data->font_inptr;
138         struct sti_font_inptr inptr_default = {
139                 .font_start_addr= STI_PTR(sti->font->raw),
140                 .index          = c_index(sti, c),
141                 .fg_color       = c_fg(sti, c),
142                 .bg_color       = c_bg(sti, c),
143                 .dest_x         = x * sti->font_width,
144                 .dest_y         = y * sti->font_height,
145         };
146         struct sti_font_outptr *outptr = &sti->sti_data->font_outptr;
147         s32 ret;
148         unsigned long flags;
149 
150         do {
151                 spin_lock_irqsave(&sti->lock, flags);
152                 *inptr = inptr_default;
153                 ret = sti_call(sti, sti->font_unpmv, &default_font_flags,
154                         inptr, outptr, sti->glob_cfg);
155                 spin_unlock_irqrestore(&sti->lock, flags);
156         } while (ret == 1);
157 }
158 
159 static const struct sti_blkmv_flags clear_blkmv_flags = {
160         .wait   = STI_WAIT, 
161         .color  = 1, 
162         .clear  = 1, 
163 };
164 
165 void
166 sti_set(struct sti_struct *sti, int src_y, int src_x,
167         int height, int width, u8 color)
168 {
169         struct sti_blkmv_inptr *inptr = &sti->sti_data->blkmv_inptr;
170         struct sti_blkmv_inptr inptr_default = {
171                 .fg_color       = color,
172                 .bg_color       = color,
173                 .src_x          = src_x,
174                 .src_y          = src_y,
175                 .dest_x         = src_x,
176                 .dest_y         = src_y,
177                 .width          = width,
178                 .height         = height,
179         };
180         struct sti_blkmv_outptr *outptr = &sti->sti_data->blkmv_outptr;
181         s32 ret;
182         unsigned long flags;
183         
184         do {
185                 spin_lock_irqsave(&sti->lock, flags);
186                 *inptr = inptr_default;
187                 ret = sti_call(sti, sti->block_move, &clear_blkmv_flags,
188                         inptr, outptr, sti->glob_cfg);
189                 spin_unlock_irqrestore(&sti->lock, flags);
190         } while (ret == 1);
191 }
192 
193 void
194 sti_clear(struct sti_struct *sti, int src_y, int src_x,
195           int height, int width, int c)
196 {
197         struct sti_blkmv_inptr *inptr = &sti->sti_data->blkmv_inptr;
198         struct sti_blkmv_inptr inptr_default = {
199                 .fg_color       = c_fg(sti, c),
200                 .bg_color       = c_bg(sti, c),
201                 .src_x          = src_x * sti->font_width,
202                 .src_y          = src_y * sti->font_height,
203                 .dest_x         = src_x * sti->font_width,
204                 .dest_y         = src_y * sti->font_height,
205                 .width          = width * sti->font_width,
206                 .height         = height* sti->font_height,
207         };
208         struct sti_blkmv_outptr *outptr = &sti->sti_data->blkmv_outptr;
209         s32 ret;
210         unsigned long flags;
211 
212         do {
213                 spin_lock_irqsave(&sti->lock, flags);
214                 *inptr = inptr_default;
215                 ret = sti_call(sti, sti->block_move, &clear_blkmv_flags,
216                         inptr, outptr, sti->glob_cfg);
217                 spin_unlock_irqrestore(&sti->lock, flags);
218         } while (ret == 1);
219 }
220 
221 static const struct sti_blkmv_flags default_blkmv_flags = {
222         .wait = STI_WAIT, 
223 };
224 
225 void
226 sti_bmove(struct sti_struct *sti, int src_y, int src_x,
227           int dst_y, int dst_x, int height, int width)
228 {
229         struct sti_blkmv_inptr *inptr = &sti->sti_data->blkmv_inptr;
230         struct sti_blkmv_inptr inptr_default = {
231                 .src_x          = src_x * sti->font_width,
232                 .src_y          = src_y * sti->font_height,
233                 .dest_x         = dst_x * sti->font_width,
234                 .dest_y         = dst_y * sti->font_height,
235                 .width          = width * sti->font_width,
236                 .height         = height* sti->font_height,
237         };
238         struct sti_blkmv_outptr *outptr = &sti->sti_data->blkmv_outptr;
239         s32 ret;
240         unsigned long flags;
241 
242         do {
243                 spin_lock_irqsave(&sti->lock, flags);
244                 *inptr = inptr_default;
245                 ret = sti_call(sti, sti->block_move, &default_blkmv_flags,
246                         inptr, outptr, sti->glob_cfg);
247                 spin_unlock_irqrestore(&sti->lock, flags);
248         } while (ret == 1);
249 }
250 
251 
252 static void sti_flush(unsigned long start, unsigned long end)
253 {
254         flush_icache_range(start, end);
255 }
256 
257 static void sti_rom_copy(unsigned long base, unsigned long count, void *dest)
258 {
259         unsigned long dest_start = (unsigned long) dest;
260 
261         /* this still needs to be revisited (see arch/parisc/mm/init.c:246) ! */
262         while (count >= 4) {
263                 count -= 4;
264                 *(u32 *)dest = gsc_readl(base);
265                 base += 4;
266                 dest += 4;
267         }
268         while (count) {
269                 count--;
270                 *(u8 *)dest = gsc_readb(base);
271                 base++;
272                 dest++;
273         }
274 
275         sti_flush(dest_start, (unsigned long)dest);
276 }
277 
278 
279 
280 
281 static char default_sti_path[21] __read_mostly;
282 
283 #ifndef MODULE
284 static int sti_setup(char *str)
285 {
286         if (str)
287                 strlcpy (default_sti_path, str, sizeof (default_sti_path));
288         
289         return 1;
290 }
291 
292 /*      Assuming the machine has multiple STI consoles (=graphic cards) which
293  *      all get detected by sticon, the user may define with the linux kernel
294  *      parameter sti=<x> which of them will be the initial boot-console.
295  *      <x> is a number between 0 and MAX_STI_ROMS, with 0 as the default 
296  *      STI screen.
297  */
298 __setup("sti=", sti_setup);
299 #endif
300 
301 
302 
303 static char *font_name[MAX_STI_ROMS];
304 static int font_index[MAX_STI_ROMS],
305            font_height[MAX_STI_ROMS],
306            font_width[MAX_STI_ROMS];
307 #ifndef MODULE
308 static int sti_font_setup(char *str)
309 {
310         char *x;
311         int i = 0;
312 
313         /* we accept sti_font=VGA8x16, sti_font=10x20, sti_font=10*20 
314          * or sti_font=7 style command lines. */
315 
316         while (i<MAX_STI_ROMS && str && *str) {
317                 if (*str>='' && *str<='9') {
318                         if ((x = strchr(str, 'x')) || (x = strchr(str, '*'))) {
319                                 font_height[i] = simple_strtoul(str, NULL, 0);
320                                 font_width[i] = simple_strtoul(x+1, NULL, 0);
321                         } else {
322                                 font_index[i] = simple_strtoul(str, NULL, 0);
323                         }
324                 } else {
325                         font_name[i] = str;     /* fb font name */
326                 }
327 
328                 if ((x = strchr(str, ',')))
329                         *x++ = 0;
330                 str = x;
331 
332                 i++;
333         }
334 
335         return 1;
336 }
337 
338 /*      The optional linux kernel parameter "sti_font" defines which font
339  *      should be used by the sticon driver to draw characters to the screen.
340  *      Possible values are:
341  *      - sti_font=<fb_fontname>:
342  *              <fb_fontname> is the name of one of the linux-kernel built-in 
343  *              framebuffer font names (e.g. VGA8x16, SUN22x18). 
344  *              This is only available if the fonts have been statically compiled 
345  *              in with e.g. the CONFIG_FONT_8x16 or CONFIG_FONT_SUN12x22 options.
346  *      - sti_font=<number>
347  *              most STI ROMs have built-in HP specific fonts, which can be selected
348  *              by giving the desired number to the sticon driver. 
349  *              NOTE: This number is machine and STI ROM dependend.
350  *      - sti_font=<height>x<width>  (e.g. sti_font=16x8)
351  *              <height> and <width> gives hints to the height and width of the
352  *              font which the user wants. The sticon driver will try to use
353  *              a font with this height and width, but if no suitable font is
354  *              found, sticon will use the default 8x8 font.
355  */
356 __setup("sti_font=", sti_font_setup);
357 #endif
358 
359 
360         
361 static void sti_dump_globcfg(struct sti_glob_cfg *glob_cfg,
362                              unsigned int sti_mem_request)
363 {
364         struct sti_glob_cfg_ext *cfg;
365         
366         DPRINTK((KERN_INFO
367                 "%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         DPRINTK(( KERN_INFO
389                 "monitor %d\n"
390                 "in friendly mode: %d\n"
391                 "power consumption %d watts\n"
392                 "freq ref %d\n"
393                 "sti_mem_addr %08x (size=%d bytes)\n",
394                 cfg->curr_mon,
395                 cfg->friendly_boot,
396                 cfg->power,
397                 cfg->freq_ref,
398                 cfg->sti_mem_addr, sti_mem_request));
399 }
400 
401 static void sti_dump_outptr(struct sti_struct *sti)
402 {
403         DPRINTK((KERN_INFO
404                 "%d bits per pixel\n"
405                 "%d used bits\n"
406                 "%d planes\n"
407                 "attributes %08x\n",
408                  sti->sti_data->inq_outptr.bits_per_pixel,
409                  sti->sti_data->inq_outptr.bits_used,
410                  sti->sti_data->inq_outptr.planes,
411                  sti->sti_data->inq_outptr.attributes));
412 }
413 
414 static int sti_init_glob_cfg(struct sti_struct *sti, unsigned long rom_address,
415                              unsigned long hpa)
416 {
417         struct sti_glob_cfg *glob_cfg;
418         struct sti_glob_cfg_ext *glob_cfg_ext;
419         void *save_addr;
420         void *sti_mem_addr;
421         int i, size;
422 
423         if (sti->sti_mem_request < 256)
424                 sti->sti_mem_request = 256; /* STI default */
425 
426         size = sizeof(struct sti_all_data) + sti->sti_mem_request - 256;
427 
428         sti->sti_data = kzalloc(size, STI_LOWMEM);
429         if (!sti->sti_data)
430                 return -ENOMEM;
431 
432         glob_cfg        = &sti->sti_data->glob_cfg;
433         glob_cfg_ext    = &sti->sti_data->glob_cfg_ext;
434         save_addr       = &sti->sti_data->save_addr;
435         sti_mem_addr    = &sti->sti_data->sti_mem_addr;
436 
437         glob_cfg->ext_ptr = STI_PTR(glob_cfg_ext);
438         glob_cfg->save_addr = STI_PTR(save_addr);
439         for (i=0; i<8; i++) {
440                 unsigned long newhpa, len;
441                
442                 if (sti->pd) {
443                         unsigned char offs = sti->rm_entry[i];
444                                 
445                         if (offs == 0)
446                                 continue;
447                         if (offs != PCI_ROM_ADDRESS &&
448                             (offs < PCI_BASE_ADDRESS_0 ||
449                              offs > PCI_BASE_ADDRESS_5)) {
450                                 printk (KERN_WARNING
451                                         "STI pci region mapping for region %d (%02x) can't be mapped\n",
452                                         i,sti->rm_entry[i]);
453                                 continue;
454                         }
455                         newhpa = pci_resource_start (sti->pd, (offs - PCI_BASE_ADDRESS_0) / 4);
456                 } else
457                         newhpa = (i == 0) ? rom_address : hpa;
458 
459                 sti->regions_phys[i] =
460                         REGION_OFFSET_TO_PHYS(sti->regions[i], newhpa);
461                 
462                 len = sti->regions[i].region_desc.length * 4096;
463                 if (len)
464                         glob_cfg->region_ptrs[i] = sti->regions_phys[i];
465                 
466                 DPRINTK(("region #%d: phys %08lx, region_ptr %08x, len=%lukB, "
467                          "btlb=%d, sysonly=%d, cache=%d, last=%d\n",
468                         i, sti->regions_phys[i], glob_cfg->region_ptrs[i],
469                         len/1024,
470                         sti->regions[i].region_desc.btlb,
471                         sti->regions[i].region_desc.sys_only,
472                         sti->regions[i].region_desc.cache, 
473                         sti->regions[i].region_desc.last));
474 
475                 /* last entry reached ? */
476                 if (sti->regions[i].region_desc.last)
477                         break;
478         }
479 
480         if (++i<8 && sti->regions[i].region)
481                 printk(KERN_WARNING "%s: *future ptr (0x%8x) not yet supported !\n",
482                                 __FILE__, sti->regions[i].region);
483 
484         glob_cfg_ext->sti_mem_addr = STI_PTR(sti_mem_addr);
485 
486         sti->glob_cfg = glob_cfg;
487         
488         return 0;
489 }
490 
491 #ifdef CONFIG_FONT_SUPPORT
492 static struct sti_cooked_font *
493 sti_select_fbfont(struct sti_cooked_rom *cooked_rom, const char *fbfont_name)
494 {
495         const struct font_desc *fbfont = NULL;
496         unsigned int size, bpc;
497         void *dest;
498         struct sti_rom_font *nf;
499         struct sti_cooked_font *cooked_font;
500         
501         if (fbfont_name && strlen(fbfont_name))
502                 fbfont = find_font(fbfont_name);
503         if (!fbfont)
504                 fbfont = get_default_font(1024,768, ~(u32)0, ~(u32)0);
505         if (!fbfont)
506                 return NULL;
507 
508         pr_info("STI selected %dx%d framebuffer font %s for sticon\n",
509                         fbfont->width, fbfont->height, fbfont->name);
510                         
511         bpc = ((fbfont->width+7)/8) * fbfont->height; 
512         size = bpc * 256;
513         size += sizeof(struct sti_rom_font);
514 
515         nf = kzalloc(size, STI_LOWMEM);
516         if (!nf)
517                 return NULL;
518 
519         nf->first_char = 0;
520         nf->last_char = 255;
521         nf->width = fbfont->width;
522         nf->height = fbfont->height;
523         nf->font_type = STI_FONT_HPROMAN8;
524         nf->bytes_per_char = bpc;
525         nf->next_font = 0;
526         nf->underline_height = 1;
527         nf->underline_pos = fbfont->height - nf->underline_height;
528 
529         dest = nf;
530         dest += sizeof(struct sti_rom_font);
531         memcpy(dest, fbfont->data, bpc*256);
532 
533         cooked_font = kzalloc(sizeof(*cooked_font), GFP_KERNEL);
534         if (!cooked_font) {
535                 kfree(nf);
536                 return NULL;
537         }
538         
539         cooked_font->raw = nf;
540         cooked_font->next_font = NULL;
541 
542         cooked_rom->font_start = cooked_font;
543 
544         return cooked_font;
545 }
546 #else
547 static struct sti_cooked_font *
548 sti_select_fbfont(struct sti_cooked_rom *cooked_rom, const char *fbfont_name)
549 {
550         return NULL;
551 }
552 #endif
553 
554 static struct sti_cooked_font *sti_select_font(struct sti_cooked_rom *rom,
555                 int (*search_font_fnc)(struct sti_cooked_rom *, int, int))
556 {
557         struct sti_cooked_font *font;
558         int i;
559         int index = num_sti_roms;
560 
561         /* check for framebuffer-font first */
562         if ((font = sti_select_fbfont(rom, font_name[index])))
563                 return font;
564 
565         if (font_width[index] && font_height[index])
566                 font_index[index] = search_font_fnc(rom, 
567                                 font_height[index], font_width[index]);
568 
569         for (font = rom->font_start, i = font_index[index];
570             font && (i > 0);
571             font = font->next_font, i--);
572 
573         if (font)
574                 return font;
575         else
576                 return rom->font_start;
577 }
578 
579 
580 static void sti_dump_rom(struct sti_rom *rom)
581 {
582         printk(KERN_INFO "    id %04x-%04x, conforms to spec rev. %d.%02x\n",
583                 rom->graphics_id[0], 
584                 rom->graphics_id[1],
585                 rom->revno[0] >> 4, 
586                 rom->revno[0] & 0x0f);
587         DPRINTK(("      supports %d monitors\n", rom->num_mons));
588         DPRINTK(("      font start %08x\n", rom->font_start));
589         DPRINTK(("      region list %08x\n", rom->region_list));
590         DPRINTK(("      init_graph %08x\n", rom->init_graph));
591         DPRINTK(("      bus support %02x\n", rom->bus_support));
592         DPRINTK(("      ext bus support %02x\n", rom->ext_bus_support));
593         DPRINTK(("      alternate code type %d\n", rom->alt_code_type));
594 }
595 
596 
597 static int sti_cook_fonts(struct sti_cooked_rom *cooked_rom,
598                           struct sti_rom *raw_rom)
599 {
600         struct sti_rom_font *raw_font, *font_start;
601         struct sti_cooked_font *cooked_font;
602         
603         cooked_font = kzalloc(sizeof(*cooked_font), GFP_KERNEL);
604         if (!cooked_font)
605                 return 0;
606 
607         cooked_rom->font_start = cooked_font;
608 
609         raw_font = ((void *)raw_rom) + (raw_rom->font_start);
610 
611         font_start = raw_font;
612         cooked_font->raw = raw_font;
613 
614         while (raw_font->next_font) {
615                 raw_font = ((void *)font_start) + (raw_font->next_font);
616 
617                 cooked_font->next_font = kzalloc(sizeof(*cooked_font), GFP_KERNEL);
618                 if (!cooked_font->next_font)
619                         return 1;
620 
621                 cooked_font = cooked_font->next_font;
622 
623                 cooked_font->raw = raw_font;
624         }
625 
626         cooked_font->next_font = NULL;
627         return 1;
628 }
629 
630 
631 static int sti_search_font(struct sti_cooked_rom *rom, int height, int width)
632 {
633         struct sti_cooked_font *font;
634         int i = 0;
635         
636         for (font = rom->font_start; font; font = font->next_font, i++) {
637                 if ((font->raw->width == width) &&
638                     (font->raw->height == height))
639                         return i;
640         }
641         return 0;
642 }
643 
644 #define BMODE_RELOCATE(offset)          offset = (offset) / 4;
645 #define BMODE_LAST_ADDR_OFFS            0x50
646 
647 static void *sti_bmode_font_raw(struct sti_cooked_font *f)
648 {
649         unsigned char *n, *p, *q;
650         int size = f->raw->bytes_per_char*256+sizeof(struct sti_rom_font);
651         
652         n = kzalloc(4*size, STI_LOWMEM);
653         if (!n)
654                 return NULL;
655         p = n + 3;
656         q = (unsigned char *)f->raw;
657         while (size--) {
658                 *p = *q++;
659                 p+=4;
660         }
661         return n + 3;
662 }
663 
664 static void sti_bmode_rom_copy(unsigned long base, unsigned long count,
665                                void *dest)
666 {
667         unsigned long dest_start = (unsigned long) dest;
668 
669         while (count) {
670                 count--;
671                 *(u8 *)dest = gsc_readl(base);
672                 base += 4;
673                 dest++;
674         }
675 
676         sti_flush(dest_start, (unsigned long)dest);
677 }
678 
679 static struct sti_rom *sti_get_bmode_rom (unsigned long address)
680 {
681         struct sti_rom *raw;
682         u32 size;
683         struct sti_rom_font *raw_font, *font_start;
684 
685         sti_bmode_rom_copy(address + BMODE_LAST_ADDR_OFFS, sizeof(size), &size);
686 
687         size = (size+3) / 4;
688         raw = kmalloc(size, STI_LOWMEM);
689         if (raw) {
690                 sti_bmode_rom_copy(address, size, raw);
691                 memmove (&raw->res004, &raw->type[0], 0x3c);
692                 raw->type[3] = raw->res004;
693 
694                 BMODE_RELOCATE (raw->region_list);
695                 BMODE_RELOCATE (raw->font_start);
696 
697                 BMODE_RELOCATE (raw->init_graph);
698                 BMODE_RELOCATE (raw->state_mgmt);
699                 BMODE_RELOCATE (raw->font_unpmv);
700                 BMODE_RELOCATE (raw->block_move);
701                 BMODE_RELOCATE (raw->inq_conf);
702 
703                 raw_font = ((void *)raw) + raw->font_start;
704                 font_start = raw_font;
705                 
706                 while (raw_font->next_font) {
707                         BMODE_RELOCATE (raw_font->next_font);
708                         raw_font = ((void *)font_start) + raw_font->next_font;
709                 }
710         }
711         return raw;
712 }
713 
714 static struct sti_rom *sti_get_wmode_rom(unsigned long address)
715 {
716         struct sti_rom *raw;
717         unsigned long size;
718 
719         /* read the ROM size directly from the struct in ROM */ 
720         size = gsc_readl(address + offsetof(struct sti_rom,last_addr));
721 
722         raw = kmalloc(size, STI_LOWMEM);
723         if (raw)
724                 sti_rom_copy(address, size, raw);
725 
726         return raw;
727 }
728 
729 static int sti_read_rom(int wordmode, struct sti_struct *sti,
730                         unsigned long address)
731 {
732         struct sti_cooked_rom *cooked;
733         struct sti_rom *raw = NULL;
734         unsigned long revno;
735 
736         cooked = kmalloc(sizeof *cooked, GFP_KERNEL);
737         if (!cooked)
738                 goto out_err;
739 
740         if (wordmode)
741                 raw = sti_get_wmode_rom (address);
742         else
743                 raw = sti_get_bmode_rom (address);
744 
745         if (!raw)
746                 goto out_err;
747 
748         if (!sti_cook_fonts(cooked, raw)) {
749                 printk(KERN_ERR "No font found for STI at %08lx\n", address);
750                 goto out_err;
751         }
752 
753         if (raw->region_list)
754                 memcpy(sti->regions, ((void *)raw)+raw->region_list, sizeof(sti->regions));
755 
756         address = (unsigned long) STI_PTR(raw);
757 
758         pr_info("STI ROM supports 32 %sbit firmware functions.\n",
759                 raw->alt_code_type == ALT_CODE_TYPE_PA_RISC_64
760                 ? "and 64 " : "");
761 
762         sti->font_unpmv = address + (raw->font_unpmv & 0x03ffffff);
763         sti->block_move = address + (raw->block_move & 0x03ffffff);
764         sti->init_graph = address + (raw->init_graph & 0x03ffffff);
765         sti->inq_conf   = address + (raw->inq_conf   & 0x03ffffff);
766 
767         sti->rom = cooked;
768         sti->rom->raw = raw;
769         
770         sti->font = sti_select_font(sti->rom, sti_search_font);
771         sti->font_width = sti->font->raw->width;
772         sti->font_height = sti->font->raw->height;
773         if (!wordmode)
774                 sti->font->raw = sti_bmode_font_raw(sti->font);
775 
776         sti->sti_mem_request = raw->sti_mem_req;
777         sti->graphics_id[0] = raw->graphics_id[0];
778         sti->graphics_id[1] = raw->graphics_id[1];
779         
780         sti_dump_rom(raw);
781 
782         /* check if the ROM routines in this card are compatible */
783         if (wordmode || sti->graphics_id[1] != 0x09A02587)
784                 goto ok;
785 
786         revno = (raw->revno[0] << 8) | raw->revno[1];
787 
788         switch (sti->graphics_id[0]) {
789         case S9000_ID_HCRX:
790                 /* HyperA or HyperB ? */
791                 if (revno == 0x8408 || revno == 0x840b)
792                         goto msg_not_supported;
793                 break;
794         case CRT_ID_THUNDER:
795                 if (revno == 0x8509)
796                         goto msg_not_supported;
797                 break;
798         case CRT_ID_THUNDER2:
799                 if (revno == 0x850c)
800                         goto msg_not_supported;
801         }
802 ok:
803         return 1;
804 
805 msg_not_supported:
806         printk(KERN_ERR "Sorry, this GSC/STI card is not yet supported.\n");
807         printk(KERN_ERR "Please see http://parisc-linux.org/faq/"
808                         "graphics-howto.html for more info.\n");
809         /* fall through */
810 out_err:
811         kfree(raw);
812         kfree(cooked);
813         return 0;
814 }
815 
816 static struct sti_struct *sti_try_rom_generic(unsigned long address,
817                                               unsigned long hpa,
818                                               struct pci_dev *pd)
819 {
820         struct sti_struct *sti;
821         int ok;
822         u32 sig;
823 
824         if (num_sti_roms >= MAX_STI_ROMS) {
825                 printk(KERN_WARNING "maximum number of STI ROMS reached !\n");
826                 return NULL;
827         }
828         
829         sti = kzalloc(sizeof(*sti), GFP_KERNEL);
830         if (!sti) {
831                 printk(KERN_ERR "Not enough memory !\n");
832                 return NULL;
833         }
834 
835         spin_lock_init(&sti->lock);
836 
837 test_rom:
838         /* if we can't read the ROM, bail out early.  Not being able
839          * to read the hpa is okay, for romless sti */
840         if (pdc_add_valid(address))
841                 goto out_err;
842 
843         sig = gsc_readl(address);
844 
845         /* check for a PCI ROM structure */
846         if ((le32_to_cpu(sig)==0xaa55)) {
847                 unsigned int i, rm_offset;
848                 u32 *rm;
849                 i = gsc_readl(address+0x04);
850                 if (i != 1) {
851                         /* The ROM could have multiple architecture 
852                          * dependent images (e.g. i386, parisc,...) */
853                         printk(KERN_WARNING 
854                                 "PCI ROM is not a STI ROM type image (0x%8x)\n", i);
855                         goto out_err;
856                 }
857                 
858                 sti->pd = pd;
859 
860                 i = gsc_readl(address+0x0c);
861                 DPRINTK(("PCI ROM size (from header) = %d kB\n",
862                         le16_to_cpu(i>>16)*512/1024));
863                 rm_offset = le16_to_cpu(i & 0xffff);
864                 if (rm_offset) { 
865                         /* read 16 bytes from the pci region mapper array */
866                         rm = (u32*) &sti->rm_entry;
867                         *rm++ = gsc_readl(address+rm_offset+0x00);
868                         *rm++ = gsc_readl(address+rm_offset+0x04);
869                         *rm++ = gsc_readl(address+rm_offset+0x08);
870                         *rm++ = gsc_readl(address+rm_offset+0x0c);
871                         DPRINTK(("PCI region Mapper offset = %08x: ",
872                                 rm_offset));
873                         for (i=0; i<16; i++)
874                                 DPRINTK(("%02x ", sti->rm_entry[i]));
875                         DPRINTK(("\n"));
876                 }
877 
878                 address += le32_to_cpu(gsc_readl(address+8));
879                 DPRINTK(("sig %04x, PCI STI ROM at %08lx\n", sig, address));
880                 goto test_rom;
881         }
882         
883         ok = 0;
884         
885         if ((sig & 0xff) == 0x01) {
886                 DPRINTK(("    byte mode ROM at %08lx, hpa at %08lx\n",
887                        address, hpa));
888                 ok = sti_read_rom(0, sti, address);
889         }
890 
891         if ((sig & 0xffff) == 0x0303) {
892                 DPRINTK(("    word mode ROM at %08lx, hpa at %08lx\n",
893                        address, hpa));
894                 ok = sti_read_rom(1, sti, address);
895         }
896 
897         if (!ok)
898                 goto out_err;
899 
900         if (sti_init_glob_cfg(sti, address, hpa))
901                 goto out_err; /* not enough memory */
902 
903         /* disable STI PCI ROM. ROM and card RAM overlap and
904          * leaving it enabled would force HPMCs
905          */
906         if (sti->pd) {
907                 unsigned long rom_base;
908                 rom_base = pci_resource_start(sti->pd, PCI_ROM_RESOURCE);       
909                 pci_write_config_dword(sti->pd, PCI_ROM_ADDRESS, rom_base & ~PCI_ROM_ADDRESS_ENABLE);
910                 DPRINTK((KERN_DEBUG "STI PCI ROM disabled\n"));
911         }
912 
913         if (sti_init_graph(sti))
914                 goto out_err;
915 
916         sti_inq_conf(sti);
917         sti_dump_globcfg(sti->glob_cfg, sti->sti_mem_request);
918         sti_dump_outptr(sti);
919         
920         pr_info("    graphics card name: %s\n",
921                 sti->sti_data->inq_outptr.dev_name);
922 
923         sti_roms[num_sti_roms] = sti;
924         num_sti_roms++;
925         
926         return sti;
927 
928 out_err:
929         kfree(sti);
930         return NULL;
931 }
932 
933 static void sticore_check_for_default_sti(struct sti_struct *sti, char *path)
934 {
935         if (strcmp (path, default_sti_path) == 0)
936                 default_sti = sti;
937 }
938 
939 /*
940  * on newer systems PDC gives the address of the ROM 
941  * in the additional address field addr[1] while on
942  * older Systems the PDC stores it in page0->proc_sti 
943  */
944 static int sticore_pa_init(struct parisc_device *dev)
945 {
946         char pa_path[21];
947         struct sti_struct *sti = NULL;
948         int hpa = dev->hpa.start;
949 
950         if (dev->num_addrs && dev->addr[0])
951                 sti = sti_try_rom_generic(dev->addr[0], hpa, NULL);
952         if (!sti)
953                 sti = sti_try_rom_generic(hpa, hpa, NULL);
954         if (!sti)
955                 sti = sti_try_rom_generic(PAGE0->proc_sti, hpa, NULL);
956         if (!sti)
957                 return 1;
958 
959         print_pa_hwpath(dev, pa_path);
960         sticore_check_for_default_sti(sti, pa_path);
961         return 0;
962 }
963 
964 
965 static int sticore_pci_init(struct pci_dev *pd, const struct pci_device_id *ent)
966 {
967 #ifdef CONFIG_PCI
968         unsigned long fb_base, rom_base;
969         unsigned int fb_len, rom_len;
970         int err;
971         struct sti_struct *sti;
972         
973         err = pci_enable_device(pd);
974         if (err < 0) {
975                 dev_err(&pd->dev, "Cannot enable PCI device\n");
976                 return err;
977         }
978 
979         fb_base = pci_resource_start(pd, 0);
980         fb_len = pci_resource_len(pd, 0);
981         rom_base = pci_resource_start(pd, PCI_ROM_RESOURCE);
982         rom_len = pci_resource_len(pd, PCI_ROM_RESOURCE);
983         if (rom_base) {
984                 pci_write_config_dword(pd, PCI_ROM_ADDRESS, rom_base | PCI_ROM_ADDRESS_ENABLE);
985                 DPRINTK((KERN_DEBUG "STI PCI ROM enabled at 0x%08lx\n", rom_base));
986         }
987 
988         printk(KERN_INFO "STI PCI graphic ROM found at %08lx (%u kB), fb at %08lx (%u MB)\n",
989                 rom_base, rom_len/1024, fb_base, fb_len/1024/1024);
990 
991         DPRINTK((KERN_DEBUG "Trying PCI STI ROM at %08lx, PCI hpa at %08lx\n",
992                     rom_base, fb_base));
993 
994         sti = sti_try_rom_generic(rom_base, fb_base, pd);
995         if (sti) {
996                 char pa_path[30];
997                 print_pci_hwpath(pd, pa_path);
998                 sticore_check_for_default_sti(sti, pa_path);
999         }
1000         
1001         if (!sti) {
1002                 printk(KERN_WARNING "Unable to handle STI device '%s'\n",
1003                         pci_name(pd));
1004                 return -ENODEV;
1005         }
1006 #endif /* CONFIG_PCI */
1007 
1008         return 0;
1009 }
1010 
1011 
1012 static void sticore_pci_remove(struct pci_dev *pd)
1013 {
1014         BUG();
1015 }
1016 
1017 
1018 static struct pci_device_id sti_pci_tbl[] = {
1019         { PCI_DEVICE(PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_VISUALIZE_EG) },
1020         { PCI_DEVICE(PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_VISUALIZE_FX6) },
1021         { PCI_DEVICE(PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_VISUALIZE_FX4) },
1022         { PCI_DEVICE(PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_VISUALIZE_FX2) },
1023         { PCI_DEVICE(PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_VISUALIZE_FXE) },
1024         { 0, } /* terminate list */
1025 };
1026 MODULE_DEVICE_TABLE(pci, sti_pci_tbl);
1027 
1028 static struct pci_driver pci_sti_driver = {
1029         .name           = "sti",
1030         .id_table       = sti_pci_tbl,
1031         .probe          = sticore_pci_init,
1032         .remove         = sticore_pci_remove,
1033 };
1034 
1035 static struct parisc_device_id sti_pa_tbl[] = {
1036         { HPHW_FIO, HVERSION_REV_ANY_ID, HVERSION_ANY_ID, 0x00077 },
1037         { HPHW_FIO, HVERSION_REV_ANY_ID, HVERSION_ANY_ID, 0x00085 },
1038         { 0, }
1039 };
1040 
1041 static struct parisc_driver pa_sti_driver = {
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 
1120 

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