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RT-AC66 3.0.0.4.374.130 core
[tomato.git] / release / src-rt-6.x / linux / linux-2.6 / drivers / video / console / sticore.c
blob870017d449702cf0da0916cedec3dd4efe759bcd
1 /*
2 * linux/drivers/video/console/sticore.c -
3 * core code for console driver using HP's STI firmware
4 *
5 * Copyright (C) 2000 Philipp Rumpf <prumpf@tux.org>
6 * Copyright (C) 2001-2003 Helge Deller <deller@gmx.de>
7 * Copyright (C) 2001-2002 Thomas Bogendoerfer <tsbogend@alpha.franken.de>
8 *
9 * TODO:
10 * - call STI in virtual mode rather than in real mode
11 * - screen blanking with state_mgmt() in text mode STI ?
12 * - try to make it work on m68k hp workstations ;)
13 *
14 */
15
16 #include <linux/module.h>
17 #include <linux/types.h>
18 #include <linux/kernel.h>
19 #include <linux/slab.h>
20 #include <linux/init.h>
21 #include <linux/pci.h>
22 #include <linux/font.h>
23
24 #include <asm/hardware.h>
25 #include <asm/parisc-device.h>
26 #include <asm/cacheflush.h>
27
28 #include "../sticore.h"
29
30 #define STI_DRIVERVERSION "Version 0.9a"
31
32 struct sti_struct *default_sti __read_mostly;
33
34 /* number of STI ROMS found and their ptrs to each struct */
35 static int num_sti_roms __read_mostly;
36 static struct sti_struct *sti_roms[MAX_STI_ROMS] __read_mostly;
37
38
39 /* The colour indices used by STI are
40 * 0 - Black
41 * 1 - White
42 * 2 - Red
43 * 3 - Yellow/Brown
44 * 4 - Green
45 * 5 - Cyan
46 * 6 - Blue
47 * 7 - Magenta
48 *
49 * So we have the same colours as VGA (basically one bit each for R, G, B),
50 * but have to translate them, anyway. */
51
52 static const u8 col_trans[8] = {
53 0, 6, 4, 5,
54 2, 7, 3, 1
55 };
56
57 #define c_fg(sti, c) col_trans[((c>> 8) & 7)]
58 #define c_bg(sti, c) col_trans[((c>>11) & 7)]
59 #define c_index(sti, c) ((c) & 0xff)
60
61 static const struct sti_init_flags default_init_flags = {
62 .wait = STI_WAIT,
63 .reset = 1,
64 .text = 1,
65 .nontext = 1,
66 .no_chg_bet = 1,
67 .no_chg_bei = 1,
68 .init_cmap_tx = 1,
69 };
70
71 int
72 sti_init_graph(struct sti_struct *sti)
73 {
74 struct sti_init_inptr_ext inptr_ext = { 0, };
75 struct sti_init_inptr inptr = {
76 .text_planes = 3, /* # of text planes (max 3 for STI) */
77 .ext_ptr = STI_PTR(&inptr_ext)
78 };
79 struct sti_init_outptr outptr = { 0, };
80 unsigned long flags;
81 int ret;
82
83 spin_lock_irqsave(&sti->lock, flags);
84
85 ret = STI_CALL(sti->init_graph, &default_init_flags, &inptr,
86 &outptr, sti->glob_cfg);
87
88 spin_unlock_irqrestore(&sti->lock, flags);
89
90 if (ret < 0) {
91 printk(KERN_ERR "STI init_graph failed (ret %d, errno %d)\n",ret,outptr.errno);
92 return -1;
93 }
94
95 sti->text_planes = outptr.text_planes;
96 return 0;
97 }
98
99 static const struct sti_conf_flags default_conf_flags = {
100 .wait = STI_WAIT,
101 };
102
103 void
104 sti_inq_conf(struct sti_struct *sti)
105 {
106 struct sti_conf_inptr inptr = { 0, };
107 unsigned long flags;
108 s32 ret;
109
110 sti->outptr.ext_ptr = STI_PTR(&sti->outptr_ext);
111
112 do {
113 spin_lock_irqsave(&sti->lock, flags);
114 ret = STI_CALL(sti->inq_conf, &default_conf_flags,
115 &inptr, &sti->outptr, sti->glob_cfg);
116 spin_unlock_irqrestore(&sti->lock, flags);
117 } while (ret == 1);
118 }
119
120 static const struct sti_font_flags default_font_flags = {
121 .wait = STI_WAIT,
122 .non_text = 0,
123 };
124
125 void
126 sti_putc(struct sti_struct *sti, int c, int y, int x)
127 {
128 struct sti_font_inptr inptr = {
129 .font_start_addr= STI_PTR(sti->font->raw),
130 .index = c_index(sti, c),
131 .fg_color = c_fg(sti, c),
132 .bg_color = c_bg(sti, c),
133 .dest_x = x * sti->font_width,
134 .dest_y = y * sti->font_height,
135 };
136 struct sti_font_outptr outptr = { 0, };
137 s32 ret;
138 unsigned long flags;
139
140 do {
141 spin_lock_irqsave(&sti->lock, flags);
142 ret = STI_CALL(sti->font_unpmv, &default_font_flags,
143 &inptr, &outptr, sti->glob_cfg);
144 spin_unlock_irqrestore(&sti->lock, flags);
145 } while (ret == 1);
146 }
147
148 static const struct sti_blkmv_flags clear_blkmv_flags = {
149 .wait = STI_WAIT,
150 .color = 1,
151 .clear = 1,
152 };
153
154 void
155 sti_set(struct sti_struct *sti, int src_y, int src_x,
156 int height, int width, u8 color)
157 {
158 struct sti_blkmv_inptr inptr = {
159 .fg_color = color,
160 .bg_color = color,
161 .src_x = src_x,
162 .src_y = src_y,
163 .dest_x = src_x,
164 .dest_y = src_y,
165 .width = width,
166 .height = height,
167 };
168 struct sti_blkmv_outptr outptr = { 0, };
169 s32 ret;
170 unsigned long flags;
171
172 do {
173 spin_lock_irqsave(&sti->lock, flags);
174 ret = STI_CALL(sti->block_move, &clear_blkmv_flags,
175 &inptr, &outptr, sti->glob_cfg);
176 spin_unlock_irqrestore(&sti->lock, flags);
177 } while (ret == 1);
178 }
179
180 void
181 sti_clear(struct sti_struct *sti, int src_y, int src_x,
182 int height, int width, int c)
183 {
184 struct sti_blkmv_inptr inptr = {
185 .fg_color = c_fg(sti, c),
186 .bg_color = c_bg(sti, c),
187 .src_x = src_x * sti->font_width,
188 .src_y = src_y * sti->font_height,
189 .dest_x = src_x * sti->font_width,
190 .dest_y = src_y * sti->font_height,
191 .width = width * sti->font_width,
192 .height = height* sti->font_height,
193 };
194 struct sti_blkmv_outptr outptr = { 0, };
195 s32 ret;
196 unsigned long flags;
197
198 do {
199 spin_lock_irqsave(&sti->lock, flags);
200 ret = STI_CALL(sti->block_move, &clear_blkmv_flags,
201 &inptr, &outptr, sti->glob_cfg);
202 spin_unlock_irqrestore(&sti->lock, flags);
203 } while (ret == 1);
204 }
205
206 static const struct sti_blkmv_flags default_blkmv_flags = {
207 .wait = STI_WAIT,
208 };
209
210 void
211 sti_bmove(struct sti_struct *sti, int src_y, int src_x,
212 int dst_y, int dst_x, int height, int width)
213 {
214 struct sti_blkmv_inptr inptr = {
215 .src_x = src_x * sti->font_width,
216 .src_y = src_y * sti->font_height,
217 .dest_x = dst_x * sti->font_width,
218 .dest_y = dst_y * sti->font_height,
219 .width = width * sti->font_width,
220 .height = height* sti->font_height,
221 };
222 struct sti_blkmv_outptr outptr = { 0, };
223 s32 ret;
224 unsigned long flags;
225
226 do {
227 spin_lock_irqsave(&sti->lock, flags);
228 ret = STI_CALL(sti->block_move, &default_blkmv_flags,
229 &inptr, &outptr, sti->glob_cfg);
230 spin_unlock_irqrestore(&sti->lock, flags);
231 } while (ret == 1);
232 }
233
234
235 /* FIXME: Do we have another solution for this ? */
236 static void sti_flush(unsigned long from, unsigned long len)
237 {
238 flush_data_cache();
239 flush_kernel_dcache_range(from, len);
240 flush_icache_range(from, from+len);
241 }
242
243 void __devinit
244 sti_rom_copy(unsigned long base, unsigned long count, void *dest)
245 {
246 unsigned long dest_len = count;
247 unsigned long dest_start = (unsigned long) dest;
248
249 /* this still needs to be revisited (see arch/parisc/mm/init.c:246) ! */
250 while (count >= 4) {
251 count -= 4;
252 *(u32 *)dest = gsc_readl(base);
253 base += 4;
254 dest += 4;
255 }
256 while (count) {
257 count--;
258 *(u8 *)dest = gsc_readb(base);
259 base++;
260 dest++;
261 }
262
263 sti_flush(dest_start, dest_len);
264 }
265
266
267
268
269 static char default_sti_path[21] __read_mostly;
270
271 #ifndef MODULE
272 static int __devinit sti_setup(char *str)
273 {
274 if (str)
275 strlcpy (default_sti_path, str, sizeof (default_sti_path));
276
277 return 1;
278 }
279
280 /* Assuming the machine has multiple STI consoles (=graphic cards) which
281 * all get detected by sticon, the user may define with the linux kernel
282 * parameter sti=<x> which of them will be the initial boot-console.
283 * <x> is a number between 0 and MAX_STI_ROMS, with 0 as the default
284 * STI screen.
285 */
286 __setup("sti=", sti_setup);
287 #endif
288
289
290
291 static char __devinitdata *font_name[MAX_STI_ROMS] = { "VGA8x16", };
292 static int __devinitdata font_index[MAX_STI_ROMS],
293 font_height[MAX_STI_ROMS],
294 font_width[MAX_STI_ROMS];
295 #ifndef MODULE
296 static int __devinit sti_font_setup(char *str)
297 {
298 char *x;
299 int i = 0;
300
301 /* we accept sti_font=VGA8x16, sti_font=10x20, sti_font=10*20
302 * or sti_font=7 style command lines. */
303
304 while (i<MAX_STI_ROMS && str && *str) {
305 if (*str>='0' && *str<='9') {
306 if ((x = strchr(str, 'x')) || (x = strchr(str, '*'))) {
307 font_height[i] = simple_strtoul(str, NULL, 0);
308 font_width[i] = simple_strtoul(x+1, NULL, 0);
309 } else {
310 font_index[i] = simple_strtoul(str, NULL, 0);
311 }
312 } else {
313 font_name[i] = str; /* fb font name */
314 }
315
316 if ((x = strchr(str, ',')))
317 *x++ = 0;
318 str = x;
319
320 i++;
321 }
322
323 return 1;
324 }
325
326 /* The optional linux kernel parameter "sti_font" defines which font
327 * should be used by the sticon driver to draw characters to the screen.
328 * Possible values are:
329 * - sti_font=<fb_fontname>:
330 * <fb_fontname> is the name of one of the linux-kernel built-in
331 * framebuffer font names (e.g. VGA8x16, SUN22x18).
332 * This is only available if the fonts have been statically compiled
333 * in with e.g. the CONFIG_FONT_8x16 or CONFIG_FONT_SUN12x22 options.
334 * - sti_font=<number>
335 * most STI ROMs have built-in HP specific fonts, which can be selected
336 * by giving the desired number to the sticon driver.
337 * NOTE: This number is machine and STI ROM dependend.
338 * - sti_font=<height>x<width> (e.g. sti_font=16x8)
339 * <height> and <width> gives hints to the height and width of the
340 * font which the user wants. The sticon driver will try to use
341 * a font with this height and width, but if no suitable font is
342 * found, sticon will use the default 8x8 font.
343 */
344 __setup("sti_font=", sti_font_setup);
345 #endif
346
347
348
349 static void __devinit
350 sti_dump_globcfg(struct sti_glob_cfg *glob_cfg, unsigned int sti_mem_request)
351 {
352 struct sti_glob_cfg_ext *cfg;
353
354 DPRINTK((KERN_INFO
355 "%d text planes\n"
356 "%4d x %4d screen resolution\n"
357 "%4d x %4d offscreen\n"
358 "%4d x %4d layout\n"
359 "regions at %08x %08x %08x %08x\n"
360 "regions at %08x %08x %08x %08x\n"
361 "reent_lvl %d\n"
362 "save_addr %08x\n",
363 glob_cfg->text_planes,
364 glob_cfg->onscreen_x, glob_cfg->onscreen_y,
365 glob_cfg->offscreen_x, glob_cfg->offscreen_y,
366 glob_cfg->total_x, glob_cfg->total_y,
367 glob_cfg->region_ptrs[0], glob_cfg->region_ptrs[1],
368 glob_cfg->region_ptrs[2], glob_cfg->region_ptrs[3],
369 glob_cfg->region_ptrs[4], glob_cfg->region_ptrs[5],
370 glob_cfg->region_ptrs[6], glob_cfg->region_ptrs[7],
371 glob_cfg->reent_lvl,
372 glob_cfg->save_addr));
373
374 /* dump extended cfg */
375 cfg = PTR_STI((unsigned long)glob_cfg->ext_ptr);
376 DPRINTK(( KERN_INFO
377 "monitor %d\n"
378 "in friendly mode: %d\n"
379 "power consumption %d watts\n"
380 "freq ref %d\n"
381 "sti_mem_addr %08x (size=%d bytes)\n",
382 cfg->curr_mon,
383 cfg->friendly_boot,
384 cfg->power,
385 cfg->freq_ref,
386 cfg->sti_mem_addr, sti_mem_request));
387 }
388
389 static void __devinit
390 sti_dump_outptr(struct sti_struct *sti)
391 {
392 DPRINTK((KERN_INFO
393 "%d bits per pixel\n"
394 "%d used bits\n"
395 "%d planes\n"
396 "attributes %08x\n",
397 sti->outptr.bits_per_pixel,
398 sti->outptr.bits_used,
399 sti->outptr.planes,
400 sti->outptr.attributes));
401 }
402
403 static int __devinit
404 sti_init_glob_cfg(struct sti_struct *sti,
405 unsigned long rom_address, unsigned long hpa)
406 {
407 struct sti_glob_cfg *glob_cfg;
408 struct sti_glob_cfg_ext *glob_cfg_ext;
409 void *save_addr;
410 void *sti_mem_addr;
411 const int save_addr_size = 1024; /* XXX */
412 int i;
413
414 if (!sti->sti_mem_request)
415 sti->sti_mem_request = 256; /* STI default */
416
417 glob_cfg = kzalloc(sizeof(*sti->glob_cfg), GFP_KERNEL);
418 glob_cfg_ext = kzalloc(sizeof(*glob_cfg_ext), GFP_KERNEL);
419 save_addr = kzalloc(save_addr_size, GFP_KERNEL);
420 sti_mem_addr = kzalloc(sti->sti_mem_request, GFP_KERNEL);
421
422 if (!(glob_cfg && glob_cfg_ext && save_addr && sti_mem_addr)) {
423 kfree(glob_cfg);
424 kfree(glob_cfg_ext);
425 kfree(save_addr);
426 kfree(sti_mem_addr);
427 return -ENOMEM;
428 }
429
430 glob_cfg->ext_ptr = STI_PTR(glob_cfg_ext);
431 glob_cfg->save_addr = STI_PTR(save_addr);
432 for (i=0; i<8; i++) {
433 unsigned long newhpa, len;
434
435 if (sti->pd) {
436 unsigned char offs = sti->rm_entry[i];
437
438 if (offs == 0)
439 continue;
440 if (offs != PCI_ROM_ADDRESS &&
441 (offs < PCI_BASE_ADDRESS_0 ||
442 offs > PCI_BASE_ADDRESS_5)) {
443 printk (KERN_WARNING
444 "STI pci region maping for region %d (%02x) can't be mapped\n",
445 i,sti->rm_entry[i]);
446 continue;
447 }
448 newhpa = pci_resource_start (sti->pd, (offs - PCI_BASE_ADDRESS_0) / 4);
449 } else
450 newhpa = (i == 0) ? rom_address : hpa;
451
452 sti->regions_phys[i] =
453 REGION_OFFSET_TO_PHYS(sti->regions[i], newhpa);
454
455 len = sti->regions[i].region_desc.length * 4096;
456 if (len)
457 glob_cfg->region_ptrs[i] = sti->regions_phys[i];
458
459 DPRINTK(("region #%d: phys %08lx, region_ptr %08x, len=%lukB, "
460 "btlb=%d, sysonly=%d, cache=%d, last=%d\n",
461 i, sti->regions_phys[i], glob_cfg->region_ptrs[i],
462 len/1024,
463 sti->regions[i].region_desc.btlb,
464 sti->regions[i].region_desc.sys_only,
465 sti->regions[i].region_desc.cache,
466 sti->regions[i].region_desc.last));
467
468 /* last entry reached ? */
469 if (sti->regions[i].region_desc.last)
470 break;
471 }
472
473 if (++i<8 && sti->regions[i].region)
474 printk(KERN_WARNING "%s: *future ptr (0x%8x) not yet supported !\n",
475 __FILE__, sti->regions[i].region);
476
477 glob_cfg_ext->sti_mem_addr = STI_PTR(sti_mem_addr);
478
479 sti->glob_cfg = glob_cfg;
480
481 return 0;
482 }
483
484 #ifdef CONFIG_FB
485 struct sti_cooked_font * __devinit
486 sti_select_fbfont(struct sti_cooked_rom *cooked_rom, const char *fbfont_name)
487 {
488 const struct font_desc *fbfont;
489 unsigned int size, bpc;
490 void *dest;
491 struct sti_rom_font *nf;
492 struct sti_cooked_font *cooked_font;
493
494 if (!fbfont_name || !strlen(fbfont_name))
495 return NULL;
496 fbfont = find_font(fbfont_name);
497 if (!fbfont)
498 fbfont = get_default_font(1024,768, ~(u32)0, ~(u32)0);
499 if (!fbfont)
500 return NULL;
501
502 DPRINTK((KERN_DEBUG "selected %dx%d fb-font %s\n",
503 fbfont->width, fbfont->height, fbfont->name));
504
505 bpc = ((fbfont->width+7)/8) * fbfont->height;
506 size = bpc * 256;
507 size += sizeof(struct sti_rom_font);
508
509 nf = kzalloc(size, GFP_KERNEL);
510 if (!nf)
511 return NULL;
512
513 nf->first_char = 0;
514 nf->last_char = 255;
515 nf->width = fbfont->width;
516 nf->height = fbfont->height;
517 nf->font_type = STI_FONT_HPROMAN8;
518 nf->bytes_per_char = bpc;
519 nf->next_font = 0;
520 nf->underline_height = 1;
521 nf->underline_pos = fbfont->height - nf->underline_height;
522
523 dest = nf;
524 dest += sizeof(struct sti_rom_font);
525 memcpy(dest, fbfont->data, bpc*256);
526
527 cooked_font = kzalloc(sizeof(*cooked_font), GFP_KERNEL);
528 if (!cooked_font) {
529 kfree(nf);
530 return NULL;
531 }
532
533 cooked_font->raw = nf;
534 cooked_font->next_font = NULL;
535
536 cooked_rom->font_start = cooked_font;
537
538 return cooked_font;
539 }
540 #else
541 struct sti_cooked_font * __devinit
542 sti_select_fbfont(struct sti_cooked_rom *cooked_rom, const char *fbfont_name)
543 {
544 return NULL;
545 }
546 #endif
547
548 struct sti_cooked_font * __devinit
549 sti_select_font(struct sti_cooked_rom *rom,
550 int (*search_font_fnc) (struct sti_cooked_rom *,int,int) )
551 {
552 struct sti_cooked_font *font;
553 int i;
554 int index = num_sti_roms;
555
556 /* check for framebuffer-font first */
557 if ((font = sti_select_fbfont(rom, font_name[index])))
558 return font;
559
560 if (font_width[index] && font_height[index])
561 font_index[index] = search_font_fnc(rom,
562 font_height[index], font_width[index]);
563
564 for (font = rom->font_start, i = font_index[index];
565 font && (i > 0);
566 font = font->next_font, i--);
567
568 if (font)
569 return font;
570 else
571 return rom->font_start;
572 }
573
574
575 static void __devinit
576 sti_dump_rom(struct sti_rom *rom)
577 {
578 printk(KERN_INFO " id %04x-%04x, conforms to spec rev. %d.%02x\n",
579 rom->graphics_id[0],
580 rom->graphics_id[1],
581 rom->revno[0] >> 4,
582 rom->revno[0] & 0x0f);
583 DPRINTK((" supports %d monitors\n", rom->num_mons));
584 DPRINTK((" font start %08x\n", rom->font_start));
585 DPRINTK((" region list %08x\n", rom->region_list));
586 DPRINTK((" init_graph %08x\n", rom->init_graph));
587 DPRINTK((" bus support %02x\n", rom->bus_support));
588 DPRINTK((" ext bus support %02x\n", rom->ext_bus_support));
589 DPRINTK((" alternate code type %d\n", rom->alt_code_type));
590 }
591
592
593 static int __devinit
594 sti_cook_fonts(struct sti_cooked_rom *cooked_rom,
595 struct sti_rom *raw_rom)
596 {
597 struct sti_rom_font *raw_font, *font_start;
598 struct sti_cooked_font *cooked_font;
599
600 cooked_font = kzalloc(sizeof(*cooked_font), GFP_KERNEL);
601 if (!cooked_font)
602 return 0;
603
604 cooked_rom->font_start = cooked_font;
605
606 raw_font = ((void *)raw_rom) + (raw_rom->font_start);
607
608 font_start = raw_font;
609 cooked_font->raw = raw_font;
610
611 while (raw_font->next_font) {
612 raw_font = ((void *)font_start) + (raw_font->next_font);
613
614 cooked_font->next_font = kzalloc(sizeof(*cooked_font), GFP_KERNEL);
615 if (!cooked_font->next_font)
616 return 1;
617
618 cooked_font = cooked_font->next_font;
619
620 cooked_font->raw = raw_font;
621 }
622
623 cooked_font->next_font = NULL;
624 return 1;
625 }
626
627
628 static int __devinit
629 sti_search_font(struct sti_cooked_rom *rom, int height, int width)
630 {
631 struct sti_cooked_font *font;
632 int i = 0;
633
634 for (font = rom->font_start; font; font = font->next_font, i++) {
635 if ((font->raw->width == width) &&
636 (font->raw->height == height))
637 return i;
638 }
639 return 0;
640 }
641
642 #define BMODE_RELOCATE(offset) offset = (offset) / 4;
643 #define BMODE_LAST_ADDR_OFFS 0x50
644
645 static void * __devinit
646 sti_bmode_font_raw(struct sti_cooked_font *f)
647 {
648 unsigned char *n, *p, *q;
649 int size = f->raw->bytes_per_char*256+sizeof(struct sti_rom_font);
650
651 n = kzalloc (4*size, GFP_KERNEL);
652 if (!n)
653 return NULL;
654 p = n + 3;
655 q = (unsigned char *)f->raw;
656 while (size--) {
657 *p = *q++;
658 p+=4;
659 }
660 return n + 3;
661 }
662
663 static void __devinit
664 sti_bmode_rom_copy(unsigned long base, unsigned long count, void *dest)
665 {
666 unsigned long dest_len = count;
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 sti_flush(dest_start, dest_len);
676 }
677
678 static struct sti_rom * __devinit
679 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, GFP_KERNEL);
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 struct sti_rom * __devinit
715 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, GFP_KERNEL);
724 if (raw)
725 sti_rom_copy(address, size, raw);
726
727 return raw;
728 }
729
730 int __devinit
731 sti_read_rom(int wordmode, struct sti_struct *sti, unsigned long address)
732 {
733 struct sti_cooked_rom *cooked;
734 struct sti_rom *raw = NULL;
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 sti->font_unpmv = address + (raw->font_unpmv & 0x03ffffff);
759 sti->block_move = address + (raw->block_move & 0x03ffffff);
760 sti->init_graph = address + (raw->init_graph & 0x03ffffff);
761 sti->inq_conf = address + (raw->inq_conf & 0x03ffffff);
762
763 sti->rom = cooked;
764 sti->rom->raw = raw;
765
766 sti->font = sti_select_font(sti->rom, sti_search_font);
767 sti->font_width = sti->font->raw->width;
768 sti->font_height = sti->font->raw->height;
769 if (!wordmode)
770 sti->font->raw = sti_bmode_font_raw(sti->font);
771
772 sti->sti_mem_request = raw->sti_mem_req;
773 sti->graphics_id[0] = raw->graphics_id[0];
774 sti->graphics_id[1] = raw->graphics_id[1];
775
776 sti_dump_rom(raw);
777
778 return 1;
779
780 out_err:
781 kfree(raw);
782 kfree(cooked);
783 return 0;
784 }
785
786 static struct sti_struct * __devinit
787 sti_try_rom_generic(unsigned long address, unsigned long hpa, struct pci_dev *pd)
788 {
789 struct sti_struct *sti;
790 int ok;
791 u32 sig;
792
793 if (num_sti_roms >= MAX_STI_ROMS) {
794 printk(KERN_WARNING "maximum number of STI ROMS reached !\n");
795 return NULL;
796 }
797
798 sti = kzalloc(sizeof(*sti), GFP_KERNEL);
799 if (!sti) {
800 printk(KERN_ERR "Not enough memory !\n");
801 return NULL;
802 }
803
804 spin_lock_init(&sti->lock);
805
806 test_rom:
807 /* if we can't read the ROM, bail out early. Not being able
808 * to read the hpa is okay, for romless sti */
809 if (pdc_add_valid(address))
810 goto out_err;
811
812 sig = gsc_readl(address);
813
814 /* check for a PCI ROM structure */
815 if ((le32_to_cpu(sig)==0xaa55)) {
816 unsigned int i, rm_offset;
817 u32 *rm;
818 i = gsc_readl(address+0x04);
819 if (i != 1) {
820 /* The ROM could have multiple architecture
821 * dependent images (e.g. i386, parisc,...) */
822 printk(KERN_WARNING
823 "PCI ROM is not a STI ROM type image (0x%8x)\n", i);
824 goto out_err;
825 }
826
827 sti->pd = pd;
828
829 i = gsc_readl(address+0x0c);
830 DPRINTK(("PCI ROM size (from header) = %d kB\n",
831 le16_to_cpu(i>>16)*512/1024));
832 rm_offset = le16_to_cpu(i & 0xffff);
833 if (rm_offset) {
834 /* read 16 bytes from the pci region mapper array */
835 rm = (u32*) &sti->rm_entry;
836 *rm++ = gsc_readl(address+rm_offset+0x00);
837 *rm++ = gsc_readl(address+rm_offset+0x04);
838 *rm++ = gsc_readl(address+rm_offset+0x08);
839 *rm++ = gsc_readl(address+rm_offset+0x0c);
840 DPRINTK(("PCI region Mapper offset = %08x: ",
841 rm_offset));
842 for (i=0; i<16; i++)
843 DPRINTK(("%02x ", sti->rm_entry[i]));
844 DPRINTK(("\n"));
845 }
846
847 address += le32_to_cpu(gsc_readl(address+8));
848 DPRINTK(("sig %04x, PCI STI ROM at %08lx\n", sig, address));
849 goto test_rom;
850 }
851
852 ok = 0;
853
854 if ((sig & 0xff) == 0x01) {
855 DPRINTK((" byte mode ROM at %08lx, hpa at %08lx\n",
856 address, hpa));
857 ok = sti_read_rom(0, sti, address);
858 }
859
860 if ((sig & 0xffff) == 0x0303) {
861 DPRINTK((" word mode ROM at %08lx, hpa at %08lx\n",
862 address, hpa));
863 ok = sti_read_rom(1, sti, address);
864 }
865
866 if (!ok)
867 goto out_err;
868
869 if (sti_init_glob_cfg(sti, address, hpa))
870 goto out_err; /* not enough memory */
871
872 /* disable STI PCI ROM. ROM and card RAM overlap and
873 * leaving it enabled would force HPMCs
874 */
875 if (sti->pd) {
876 unsigned long rom_base;
877 rom_base = pci_resource_start(sti->pd, PCI_ROM_RESOURCE);
878 pci_write_config_dword(sti->pd, PCI_ROM_ADDRESS, rom_base & ~PCI_ROM_ADDRESS_ENABLE);
879 DPRINTK((KERN_DEBUG "STI PCI ROM disabled\n"));
880 }
881
882 if (sti_init_graph(sti))
883 goto out_err;
884
885 sti_inq_conf(sti);
886 sti_dump_globcfg(sti->glob_cfg, sti->sti_mem_request);
887 sti_dump_outptr(sti);
888
889 printk(KERN_INFO " graphics card name: %s\n", sti->outptr.dev_name );
890
891 sti_roms[num_sti_roms] = sti;
892 num_sti_roms++;
893
894 return sti;
895
896 out_err:
897 kfree(sti);
898 return NULL;
899 }
900
901 static void __devinit sticore_check_for_default_sti(struct sti_struct *sti, char *path)
902 {
903 if (strcmp (path, default_sti_path) == 0)
904 default_sti = sti;
905 }
906
907 /*
908 * on newer systems PDC gives the address of the ROM
909 * in the additional address field addr[1] while on
910 * older Systems the PDC stores it in page0->proc_sti
911 */
912 static int __devinit sticore_pa_init(struct parisc_device *dev)
913 {
914 char pa_path[21];
915 struct sti_struct *sti = NULL;
916 int hpa = dev->hpa.start;
917
918 if (dev->num_addrs && dev->addr[0])
919 sti = sti_try_rom_generic(dev->addr[0], hpa, NULL);
920 if (!sti)
921 sti = sti_try_rom_generic(hpa, hpa, NULL);
922 if (!sti)
923 sti = sti_try_rom_generic(PAGE0->proc_sti, hpa, NULL);
924 if (!sti)
925 return 1;
926
927 print_pa_hwpath(dev, pa_path);
928 sticore_check_for_default_sti(sti, pa_path);
929 return 0;
930 }
931
932
933 static int __devinit sticore_pci_init(struct pci_dev *pd,
934 const struct pci_device_id *ent)
935 {
936 #ifdef CONFIG_PCI
937 unsigned long fb_base, rom_base;
938 unsigned int fb_len, rom_len;
939 struct sti_struct *sti;
940
941 pci_enable_device(pd);
942
943 fb_base = pci_resource_start(pd, 0);
944 fb_len = pci_resource_len(pd, 0);
945 rom_base = pci_resource_start(pd, PCI_ROM_RESOURCE);
946 rom_len = pci_resource_len(pd, PCI_ROM_RESOURCE);
947 if (rom_base) {
948 pci_write_config_dword(pd, PCI_ROM_ADDRESS, rom_base | PCI_ROM_ADDRESS_ENABLE);
949 DPRINTK((KERN_DEBUG "STI PCI ROM enabled at 0x%08lx\n", rom_base));
950 }
951
952 printk(KERN_INFO "STI PCI graphic ROM found at %08lx (%u kB), fb at %08lx (%u MB)\n",
953 rom_base, rom_len/1024, fb_base, fb_len/1024/1024);
954
955 DPRINTK((KERN_DEBUG "Trying PCI STI ROM at %08lx, PCI hpa at %08lx\n",
956 rom_base, fb_base));
957
958 sti = sti_try_rom_generic(rom_base, fb_base, pd);
959 if (sti) {
960 char pa_path[30];
961 print_pci_hwpath(pd, pa_path);
962 sticore_check_for_default_sti(sti, pa_path);
963 }
964
965 if (!sti) {
966 printk(KERN_WARNING "Unable to handle STI device '%s'\n",
967 pci_name(pd));
968 return -ENODEV;
969 }
970 #endif /* CONFIG_PCI */
971
972 return 0;
973 }
974
975
976 static void __devexit sticore_pci_remove(struct pci_dev *pd)
977 {
978 BUG();
979 }
980
981
982 static struct pci_device_id sti_pci_tbl[] = {
983 { PCI_DEVICE(PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_VISUALIZE_EG) },
984 { PCI_DEVICE(PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_VISUALIZE_FX6) },
985 { PCI_DEVICE(PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_VISUALIZE_FX4) },
986 { PCI_DEVICE(PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_VISUALIZE_FX2) },
987 { PCI_DEVICE(PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_VISUALIZE_FXE) },
988 { 0, } /* terminate list */
989 };
990 MODULE_DEVICE_TABLE(pci, sti_pci_tbl);
991
992 static struct pci_driver pci_sti_driver = {
993 .name = "sti",
994 .id_table = sti_pci_tbl,
995 .probe = sticore_pci_init,
996 .remove = sticore_pci_remove,
997 };
998
999 static struct parisc_device_id sti_pa_tbl[] = {
1000 { HPHW_FIO, HVERSION_REV_ANY_ID, HVERSION_ANY_ID, 0x00077 },
1001 { HPHW_FIO, HVERSION_REV_ANY_ID, HVERSION_ANY_ID, 0x00085 },
1002 { 0, }
1003 };
1004
1005 static struct parisc_driver pa_sti_driver = {
1006 .name = "sti",
1007 .id_table = sti_pa_tbl,
1008 .probe = sticore_pa_init,
1009 };
1010
1011
1012 /*
1013 * sti_init_roms() - detects all STI ROMs and stores them in sti_roms[]
1014 */
1015
1016 static int sticore_initialized __read_mostly;
1017
1018 static void __devinit sti_init_roms(void)
1019 {
1020 if (sticore_initialized)
1021 return;
1022
1023 sticore_initialized = 1;
1024
1025 printk(KERN_INFO "STI GSC/PCI core graphics driver "
1026 STI_DRIVERVERSION "\n");
1027
1028 /* Register drivers for native & PCI cards */
1029 register_parisc_driver(&pa_sti_driver);
1030 pci_register_driver(&pci_sti_driver);
1031
1032 /* if we didn't find the given default sti, take the first one */
1033 if (!default_sti)
1034 default_sti = sti_roms[0];
1035
1036 }
1037
1038 /*
1039 * index = 0 gives default sti
1040 * index > 0 gives other stis in detection order
1041 */
1042 struct sti_struct * sti_get_rom(unsigned int index)
1043 {
1044 if (!sticore_initialized)
1045 sti_init_roms();
1046
1047 if (index == 0)
1048 return default_sti;
1049
1050 if (index > num_sti_roms)
1051 return NULL;
1052
1053 return sti_roms[index-1];
1054 }
1055 EXPORT_SYMBOL(sti_get_rom);
1056
1057 MODULE_AUTHOR("Philipp Rumpf, Helge Deller, Thomas Bogendoerfer");
1058 MODULE_DESCRIPTION("Core STI driver for HP's NGLE series graphics cards in HP PARISC machines");
1059 MODULE_LICENSE("GPL v2");
1060
Tomato firmware and modifications.