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i2c-eg20t: change timeout value 50msec to 1000msec
[zen-stable.git] / drivers / video / console / sticore.c
blob6468a297e341503ec152c60232d608d1ab65ab14
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 #include <asm/grfioctl.h>
28
29 #include "../sticore.h"
30
31 #define STI_DRIVERVERSION "Version 0.9a"
32
33 static struct sti_struct *default_sti __read_mostly;
34
35 /* number of STI ROMS found and their ptrs to each struct */
36 static int num_sti_roms __read_mostly;
37 static struct sti_struct *sti_roms[MAX_STI_ROMS] __read_mostly;
38
39
40 /* The colour indices used by STI are
41 * 0 - Black
42 * 1 - White
43 * 2 - Red
44 * 3 - Yellow/Brown
45 * 4 - Green
46 * 5 - Cyan
47 * 6 - Blue
48 * 7 - Magenta
49 *
50 * So we have the same colours as VGA (basically one bit each for R, G, B),
51 * but have to translate them, anyway. */
52
53 static const u8 col_trans[8] = {
54 0, 6, 4, 5,
55 2, 7, 3, 1
56 };
57
58 #define c_fg(sti, c) col_trans[((c>> 8) & 7)]
59 #define c_bg(sti, c) col_trans[((c>>11) & 7)]
60 #define c_index(sti, c) ((c) & 0xff)
61
62 static const struct sti_init_flags default_init_flags = {
63 .wait = STI_WAIT,
64 .reset = 1,
65 .text = 1,
66 .nontext = 1,
67 .no_chg_bet = 1,
68 .no_chg_bei = 1,
69 .init_cmap_tx = 1,
70 };
71
72 static int 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 static void sti_inq_conf(struct sti_struct *sti)
104 {
105 struct sti_conf_inptr inptr = { 0, };
106 unsigned long flags;
107 s32 ret;
108
109 sti->outptr.ext_ptr = STI_PTR(&sti->outptr_ext);
110
111 do {
112 spin_lock_irqsave(&sti->lock, flags);
113 ret = STI_CALL(sti->inq_conf, &default_conf_flags,
114 &inptr, &sti->outptr, sti->glob_cfg);
115 spin_unlock_irqrestore(&sti->lock, flags);
116 } while (ret == 1);
117 }
118
119 static const struct sti_font_flags default_font_flags = {
120 .wait = STI_WAIT,
121 .non_text = 0,
122 };
123
124 void
125 sti_putc(struct sti_struct *sti, int c, int y, int x)
126 {
127 struct sti_font_inptr inptr = {
128 .font_start_addr= STI_PTR(sti->font->raw),
129 .index = c_index(sti, c),
130 .fg_color = c_fg(sti, c),
131 .bg_color = c_bg(sti, c),
132 .dest_x = x * sti->font_width,
133 .dest_y = y * sti->font_height,
134 };
135 struct sti_font_outptr outptr = { 0, };
136 s32 ret;
137 unsigned long flags;
138
139 do {
140 spin_lock_irqsave(&sti->lock, flags);
141 ret = STI_CALL(sti->font_unpmv, &default_font_flags,
142 &inptr, &outptr, sti->glob_cfg);
143 spin_unlock_irqrestore(&sti->lock, flags);
144 } while (ret == 1);
145 }
146
147 static const struct sti_blkmv_flags clear_blkmv_flags = {
148 .wait = STI_WAIT,
149 .color = 1,
150 .clear = 1,
151 };
152
153 void
154 sti_set(struct sti_struct *sti, int src_y, int src_x,
155 int height, int width, u8 color)
156 {
157 struct sti_blkmv_inptr inptr = {
158 .fg_color = color,
159 .bg_color = color,
160 .src_x = src_x,
161 .src_y = src_y,
162 .dest_x = src_x,
163 .dest_y = src_y,
164 .width = width,
165 .height = height,
166 };
167 struct sti_blkmv_outptr outptr = { 0, };
168 s32 ret;
169 unsigned long flags;
170
171 do {
172 spin_lock_irqsave(&sti->lock, flags);
173 ret = STI_CALL(sti->block_move, &clear_blkmv_flags,
174 &inptr, &outptr, sti->glob_cfg);
175 spin_unlock_irqrestore(&sti->lock, flags);
176 } while (ret == 1);
177 }
178
179 void
180 sti_clear(struct sti_struct *sti, int src_y, int src_x,
181 int height, int width, int c)
182 {
183 struct sti_blkmv_inptr inptr = {
184 .fg_color = c_fg(sti, c),
185 .bg_color = c_bg(sti, c),
186 .src_x = src_x * sti->font_width,
187 .src_y = src_y * sti->font_height,
188 .dest_x = src_x * sti->font_width,
189 .dest_y = src_y * sti->font_height,
190 .width = width * sti->font_width,
191 .height = height* sti->font_height,
192 };
193 struct sti_blkmv_outptr outptr = { 0, };
194 s32 ret;
195 unsigned long flags;
196
197 do {
198 spin_lock_irqsave(&sti->lock, flags);
199 ret = STI_CALL(sti->block_move, &clear_blkmv_flags,
200 &inptr, &outptr, sti->glob_cfg);
201 spin_unlock_irqrestore(&sti->lock, flags);
202 } while (ret == 1);
203 }
204
205 static const struct sti_blkmv_flags default_blkmv_flags = {
206 .wait = STI_WAIT,
207 };
208
209 void
210 sti_bmove(struct sti_struct *sti, int src_y, int src_x,
211 int dst_y, int dst_x, int height, int width)
212 {
213 struct sti_blkmv_inptr inptr = {
214 .src_x = src_x * sti->font_width,
215 .src_y = src_y * sti->font_height,
216 .dest_x = dst_x * sti->font_width,
217 .dest_y = dst_y * sti->font_height,
218 .width = width * sti->font_width,
219 .height = height* sti->font_height,
220 };
221 struct sti_blkmv_outptr outptr = { 0, };
222 s32 ret;
223 unsigned long flags;
224
225 do {
226 spin_lock_irqsave(&sti->lock, flags);
227 ret = STI_CALL(sti->block_move, &default_blkmv_flags,
228 &inptr, &outptr, sti->glob_cfg);
229 spin_unlock_irqrestore(&sti->lock, flags);
230 } while (ret == 1);
231 }
232
233
234 static void sti_flush(unsigned long start, unsigned long end)
235 {
236 flush_icache_range(start, end);
237 }
238
239 static void __devinit sti_rom_copy(unsigned long base, unsigned long count,
240 void *dest)
241 {
242 unsigned long dest_start = (unsigned long) dest;
243
244 /* this still needs to be revisited (see arch/parisc/mm/init.c:246) ! */
245 while (count >= 4) {
246 count -= 4;
247 *(u32 *)dest = gsc_readl(base);
248 base += 4;
249 dest += 4;
250 }
251 while (count) {
252 count--;
253 *(u8 *)dest = gsc_readb(base);
254 base++;
255 dest++;
256 }
257
258 sti_flush(dest_start, (unsigned long)dest);
259 }
260
261
262
263
264 static char default_sti_path[21] __read_mostly;
265
266 #ifndef MODULE
267 static int __devinit sti_setup(char *str)
268 {
269 if (str)
270 strlcpy (default_sti_path, str, sizeof (default_sti_path));
271
272 return 1;
273 }
274
275 /* Assuming the machine has multiple STI consoles (=graphic cards) which
276 * all get detected by sticon, the user may define with the linux kernel
277 * parameter sti=<x> which of them will be the initial boot-console.
278 * <x> is a number between 0 and MAX_STI_ROMS, with 0 as the default
279 * STI screen.
280 */
281 __setup("sti=", sti_setup);
282 #endif
283
284
285
286 static char __devinitdata *font_name[MAX_STI_ROMS] = { "VGA8x16", };
287 static int __devinitdata font_index[MAX_STI_ROMS],
288 font_height[MAX_STI_ROMS],
289 font_width[MAX_STI_ROMS];
290 #ifndef MODULE
291 static int __devinit sti_font_setup(char *str)
292 {
293 char *x;
294 int i = 0;
295
296 /* we accept sti_font=VGA8x16, sti_font=10x20, sti_font=10*20
297 * or sti_font=7 style command lines. */
298
299 while (i<MAX_STI_ROMS && str && *str) {
300 if (*str>='0' && *str<='9') {
301 if ((x = strchr(str, 'x')) || (x = strchr(str, '*'))) {
302 font_height[i] = simple_strtoul(str, NULL, 0);
303 font_width[i] = simple_strtoul(x+1, NULL, 0);
304 } else {
305 font_index[i] = simple_strtoul(str, NULL, 0);
306 }
307 } else {
308 font_name[i] = str; /* fb font name */
309 }
310
311 if ((x = strchr(str, ',')))
312 *x++ = 0;
313 str = x;
314
315 i++;
316 }
317
318 return 1;
319 }
320
321 /* The optional linux kernel parameter "sti_font" defines which font
322 * should be used by the sticon driver to draw characters to the screen.
323 * Possible values are:
324 * - sti_font=<fb_fontname>:
325 * <fb_fontname> is the name of one of the linux-kernel built-in
326 * framebuffer font names (e.g. VGA8x16, SUN22x18).
327 * This is only available if the fonts have been statically compiled
328 * in with e.g. the CONFIG_FONT_8x16 or CONFIG_FONT_SUN12x22 options.
329 * - sti_font=<number>
330 * most STI ROMs have built-in HP specific fonts, which can be selected
331 * by giving the desired number to the sticon driver.
332 * NOTE: This number is machine and STI ROM dependend.
333 * - sti_font=<height>x<width> (e.g. sti_font=16x8)
334 * <height> and <width> gives hints to the height and width of the
335 * font which the user wants. The sticon driver will try to use
336 * a font with this height and width, but if no suitable font is
337 * found, sticon will use the default 8x8 font.
338 */
339 __setup("sti_font=", sti_font_setup);
340 #endif
341
342
343
344 static void __devinit
345 sti_dump_globcfg(struct sti_glob_cfg *glob_cfg, unsigned int sti_mem_request)
346 {
347 struct sti_glob_cfg_ext *cfg;
348
349 DPRINTK((KERN_INFO
350 "%d text planes\n"
351 "%4d x %4d screen resolution\n"
352 "%4d x %4d offscreen\n"
353 "%4d x %4d layout\n"
354 "regions at %08x %08x %08x %08x\n"
355 "regions at %08x %08x %08x %08x\n"
356 "reent_lvl %d\n"
357 "save_addr %08x\n",
358 glob_cfg->text_planes,
359 glob_cfg->onscreen_x, glob_cfg->onscreen_y,
360 glob_cfg->offscreen_x, glob_cfg->offscreen_y,
361 glob_cfg->total_x, glob_cfg->total_y,
362 glob_cfg->region_ptrs[0], glob_cfg->region_ptrs[1],
363 glob_cfg->region_ptrs[2], glob_cfg->region_ptrs[3],
364 glob_cfg->region_ptrs[4], glob_cfg->region_ptrs[5],
365 glob_cfg->region_ptrs[6], glob_cfg->region_ptrs[7],
366 glob_cfg->reent_lvl,
367 glob_cfg->save_addr));
368
369 /* dump extended cfg */
370 cfg = PTR_STI((unsigned long)glob_cfg->ext_ptr);
371 DPRINTK(( KERN_INFO
372 "monitor %d\n"
373 "in friendly mode: %d\n"
374 "power consumption %d watts\n"
375 "freq ref %d\n"
376 "sti_mem_addr %08x (size=%d bytes)\n",
377 cfg->curr_mon,
378 cfg->friendly_boot,
379 cfg->power,
380 cfg->freq_ref,
381 cfg->sti_mem_addr, sti_mem_request));
382 }
383
384 static void __devinit
385 sti_dump_outptr(struct sti_struct *sti)
386 {
387 DPRINTK((KERN_INFO
388 "%d bits per pixel\n"
389 "%d used bits\n"
390 "%d planes\n"
391 "attributes %08x\n",
392 sti->outptr.bits_per_pixel,
393 sti->outptr.bits_used,
394 sti->outptr.planes,
395 sti->outptr.attributes));
396 }
397
398 static int __devinit
399 sti_init_glob_cfg(struct sti_struct *sti,
400 unsigned long rom_address, unsigned long hpa)
401 {
402 struct sti_glob_cfg *glob_cfg;
403 struct sti_glob_cfg_ext *glob_cfg_ext;
404 void *save_addr;
405 void *sti_mem_addr;
406 const int save_addr_size = 1024; /* XXX */
407 int i;
408
409 if (!sti->sti_mem_request)
410 sti->sti_mem_request = 256; /* STI default */
411
412 glob_cfg = kzalloc(sizeof(*sti->glob_cfg), GFP_KERNEL);
413 glob_cfg_ext = kzalloc(sizeof(*glob_cfg_ext), GFP_KERNEL);
414 save_addr = kzalloc(save_addr_size, GFP_KERNEL);
415 sti_mem_addr = kzalloc(sti->sti_mem_request, GFP_KERNEL);
416
417 if (!(glob_cfg && glob_cfg_ext && save_addr && sti_mem_addr)) {
418 kfree(glob_cfg);
419 kfree(glob_cfg_ext);
420 kfree(save_addr);
421 kfree(sti_mem_addr);
422 return -ENOMEM;
423 }
424
425 glob_cfg->ext_ptr = STI_PTR(glob_cfg_ext);
426 glob_cfg->save_addr = STI_PTR(save_addr);
427 for (i=0; i<8; i++) {
428 unsigned long newhpa, len;
429
430 if (sti->pd) {
431 unsigned char offs = sti->rm_entry[i];
432
433 if (offs == 0)
434 continue;
435 if (offs != PCI_ROM_ADDRESS &&
436 (offs < PCI_BASE_ADDRESS_0 ||
437 offs > PCI_BASE_ADDRESS_5)) {
438 printk (KERN_WARNING
439 "STI pci region mapping for region %d (%02x) can't be mapped\n",
440 i,sti->rm_entry[i]);
441 continue;
442 }
443 newhpa = pci_resource_start (sti->pd, (offs - PCI_BASE_ADDRESS_0) / 4);
444 } else
445 newhpa = (i == 0) ? rom_address : hpa;
446
447 sti->regions_phys[i] =
448 REGION_OFFSET_TO_PHYS(sti->regions[i], newhpa);
449
450 len = sti->regions[i].region_desc.length * 4096;
451 if (len)
452 glob_cfg->region_ptrs[i] = sti->regions_phys[i];
453
454 DPRINTK(("region #%d: phys %08lx, region_ptr %08x, len=%lukB, "
455 "btlb=%d, sysonly=%d, cache=%d, last=%d\n",
456 i, sti->regions_phys[i], glob_cfg->region_ptrs[i],
457 len/1024,
458 sti->regions[i].region_desc.btlb,
459 sti->regions[i].region_desc.sys_only,
460 sti->regions[i].region_desc.cache,
461 sti->regions[i].region_desc.last));
462
463 /* last entry reached ? */
464 if (sti->regions[i].region_desc.last)
465 break;
466 }
467
468 if (++i<8 && sti->regions[i].region)
469 printk(KERN_WARNING "%s: *future ptr (0x%8x) not yet supported !\n",
470 __FILE__, sti->regions[i].region);
471
472 glob_cfg_ext->sti_mem_addr = STI_PTR(sti_mem_addr);
473
474 sti->glob_cfg = glob_cfg;
475
476 return 0;
477 }
478
479 #ifdef CONFIG_FB
480 static struct sti_cooked_font __devinit
481 *sti_select_fbfont(struct sti_cooked_rom *cooked_rom, const char *fbfont_name)
482 {
483 const struct font_desc *fbfont;
484 unsigned int size, bpc;
485 void *dest;
486 struct sti_rom_font *nf;
487 struct sti_cooked_font *cooked_font;
488
489 if (!fbfont_name || !strlen(fbfont_name))
490 return NULL;
491 fbfont = find_font(fbfont_name);
492 if (!fbfont)
493 fbfont = get_default_font(1024,768, ~(u32)0, ~(u32)0);
494 if (!fbfont)
495 return NULL;
496
497 DPRINTK((KERN_DEBUG "selected %dx%d fb-font %s\n",
498 fbfont->width, fbfont->height, fbfont->name));
499
500 bpc = ((fbfont->width+7)/8) * fbfont->height;
501 size = bpc * 256;
502 size += sizeof(struct sti_rom_font);
503
504 nf = kzalloc(size, GFP_KERNEL);
505 if (!nf)
506 return NULL;
507
508 nf->first_char = 0;
509 nf->last_char = 255;
510 nf->width = fbfont->width;
511 nf->height = fbfont->height;
512 nf->font_type = STI_FONT_HPROMAN8;
513 nf->bytes_per_char = bpc;
514 nf->next_font = 0;
515 nf->underline_height = 1;
516 nf->underline_pos = fbfont->height - nf->underline_height;
517
518 dest = nf;
519 dest += sizeof(struct sti_rom_font);
520 memcpy(dest, fbfont->data, bpc*256);
521
522 cooked_font = kzalloc(sizeof(*cooked_font), GFP_KERNEL);
523 if (!cooked_font) {
524 kfree(nf);
525 return NULL;
526 }
527
528 cooked_font->raw = nf;
529 cooked_font->next_font = NULL;
530
531 cooked_rom->font_start = cooked_font;
532
533 return cooked_font;
534 }
535 #else
536 static struct sti_cooked_font __devinit
537 *sti_select_fbfont(struct sti_cooked_rom *cooked_rom, const char *fbfont_name)
538 {
539 return NULL;
540 }
541 #endif
542
543 static struct sti_cooked_font __devinit
544 *sti_select_font(struct sti_cooked_rom *rom,
545 int (*search_font_fnc)(struct sti_cooked_rom *, int, int))
546 {
547 struct sti_cooked_font *font;
548 int i;
549 int index = num_sti_roms;
550
551 /* check for framebuffer-font first */
552 if ((font = sti_select_fbfont(rom, font_name[index])))
553 return font;
554
555 if (font_width[index] && font_height[index])
556 font_index[index] = search_font_fnc(rom,
557 font_height[index], font_width[index]);
558
559 for (font = rom->font_start, i = font_index[index];
560 font && (i > 0);
561 font = font->next_font, i--);
562
563 if (font)
564 return font;
565 else
566 return rom->font_start;
567 }
568
569
570 static void __devinit
571 sti_dump_rom(struct sti_rom *rom)
572 {
573 printk(KERN_INFO " id %04x-%04x, conforms to spec rev. %d.%02x\n",
574 rom->graphics_id[0],
575 rom->graphics_id[1],
576 rom->revno[0] >> 4,
577 rom->revno[0] & 0x0f);
578 DPRINTK((" supports %d monitors\n", rom->num_mons));
579 DPRINTK((" font start %08x\n", rom->font_start));
580 DPRINTK((" region list %08x\n", rom->region_list));
581 DPRINTK((" init_graph %08x\n", rom->init_graph));
582 DPRINTK((" bus support %02x\n", rom->bus_support));
583 DPRINTK((" ext bus support %02x\n", rom->ext_bus_support));
584 DPRINTK((" alternate code type %d\n", rom->alt_code_type));
585 }
586
587
588 static int __devinit
589 sti_cook_fonts(struct sti_cooked_rom *cooked_rom,
590 struct sti_rom *raw_rom)
591 {
592 struct sti_rom_font *raw_font, *font_start;
593 struct sti_cooked_font *cooked_font;
594
595 cooked_font = kzalloc(sizeof(*cooked_font), GFP_KERNEL);
596 if (!cooked_font)
597 return 0;
598
599 cooked_rom->font_start = cooked_font;
600
601 raw_font = ((void *)raw_rom) + (raw_rom->font_start);
602
603 font_start = raw_font;
604 cooked_font->raw = raw_font;
605
606 while (raw_font->next_font) {
607 raw_font = ((void *)font_start) + (raw_font->next_font);
608
609 cooked_font->next_font = kzalloc(sizeof(*cooked_font), GFP_KERNEL);
610 if (!cooked_font->next_font)
611 return 1;
612
613 cooked_font = cooked_font->next_font;
614
615 cooked_font->raw = raw_font;
616 }
617
618 cooked_font->next_font = NULL;
619 return 1;
620 }
621
622
623 static int __devinit
624 sti_search_font(struct sti_cooked_rom *rom, int height, int width)
625 {
626 struct sti_cooked_font *font;
627 int i = 0;
628
629 for (font = rom->font_start; font; font = font->next_font, i++) {
630 if ((font->raw->width == width) &&
631 (font->raw->height == height))
632 return i;
633 }
634 return 0;
635 }
636
637 #define BMODE_RELOCATE(offset) offset = (offset) / 4;
638 #define BMODE_LAST_ADDR_OFFS 0x50
639
640 static void * __devinit
641 sti_bmode_font_raw(struct sti_cooked_font *f)
642 {
643 unsigned char *n, *p, *q;
644 int size = f->raw->bytes_per_char*256+sizeof(struct sti_rom_font);
645
646 n = kzalloc (4*size, GFP_KERNEL);
647 if (!n)
648 return NULL;
649 p = n + 3;
650 q = (unsigned char *)f->raw;
651 while (size--) {
652 *p = *q++;
653 p+=4;
654 }
655 return n + 3;
656 }
657
658 static void __devinit
659 sti_bmode_rom_copy(unsigned long base, unsigned long count, void *dest)
660 {
661 unsigned long dest_start = (unsigned long) dest;
662
663 while (count) {
664 count--;
665 *(u8 *)dest = gsc_readl(base);
666 base += 4;
667 dest++;
668 }
669
670 sti_flush(dest_start, (unsigned long)dest);
671 }
672
673 static struct sti_rom * __devinit
674 sti_get_bmode_rom (unsigned long address)
675 {
676 struct sti_rom *raw;
677 u32 size;
678 struct sti_rom_font *raw_font, *font_start;
679
680 sti_bmode_rom_copy(address + BMODE_LAST_ADDR_OFFS, sizeof(size), &size);
681
682 size = (size+3) / 4;
683 raw = kmalloc(size, GFP_KERNEL);
684 if (raw) {
685 sti_bmode_rom_copy(address, size, raw);
686 memmove (&raw->res004, &raw->type[0], 0x3c);
687 raw->type[3] = raw->res004;
688
689 BMODE_RELOCATE (raw->region_list);
690 BMODE_RELOCATE (raw->font_start);
691
692 BMODE_RELOCATE (raw->init_graph);
693 BMODE_RELOCATE (raw->state_mgmt);
694 BMODE_RELOCATE (raw->font_unpmv);
695 BMODE_RELOCATE (raw->block_move);
696 BMODE_RELOCATE (raw->inq_conf);
697
698 raw_font = ((void *)raw) + raw->font_start;
699 font_start = raw_font;
700
701 while (raw_font->next_font) {
702 BMODE_RELOCATE (raw_font->next_font);
703 raw_font = ((void *)font_start) + raw_font->next_font;
704 }
705 }
706 return raw;
707 }
708
709 static struct sti_rom __devinit *sti_get_wmode_rom(unsigned long address)
710 {
711 struct sti_rom *raw;
712 unsigned long size;
713
714 /* read the ROM size directly from the struct in ROM */
715 size = gsc_readl(address + offsetof(struct sti_rom,last_addr));
716
717 raw = kmalloc(size, GFP_KERNEL);
718 if (raw)
719 sti_rom_copy(address, size, raw);
720
721 return raw;
722 }
723
724 static int __devinit sti_read_rom(int wordmode, struct sti_struct *sti,
725 unsigned long address)
726 {
727 struct sti_cooked_rom *cooked;
728 struct sti_rom *raw = NULL;
729 unsigned long revno;
730
731 cooked = kmalloc(sizeof *cooked, GFP_KERNEL);
732 if (!cooked)
733 goto out_err;
734
735 if (wordmode)
736 raw = sti_get_wmode_rom (address);
737 else
738 raw = sti_get_bmode_rom (address);
739
740 if (!raw)
741 goto out_err;
742
743 if (!sti_cook_fonts(cooked, raw)) {
744 printk(KERN_ERR "No font found for STI at %08lx\n", address);
745 goto out_err;
746 }
747
748 if (raw->region_list)
749 memcpy(sti->regions, ((void *)raw)+raw->region_list, sizeof(sti->regions));
750
751 address = (unsigned long) STI_PTR(raw);
752
753 sti->font_unpmv = address + (raw->font_unpmv & 0x03ffffff);
754 sti->block_move = address + (raw->block_move & 0x03ffffff);
755 sti->init_graph = address + (raw->init_graph & 0x03ffffff);
756 sti->inq_conf = address + (raw->inq_conf & 0x03ffffff);
757
758 sti->rom = cooked;
759 sti->rom->raw = raw;
760
761 sti->font = sti_select_font(sti->rom, sti_search_font);
762 sti->font_width = sti->font->raw->width;
763 sti->font_height = sti->font->raw->height;
764 if (!wordmode)
765 sti->font->raw = sti_bmode_font_raw(sti->font);
766
767 sti->sti_mem_request = raw->sti_mem_req;
768 sti->graphics_id[0] = raw->graphics_id[0];
769 sti->graphics_id[1] = raw->graphics_id[1];
770
771 sti_dump_rom(raw);
772
773 /* check if the ROM routines in this card are compatible */
774 if (wordmode || sti->graphics_id[1] != 0x09A02587)
775 goto ok;
776
777 revno = (raw->revno[0] << 8) | raw->revno[1];
778
779 switch (sti->graphics_id[0]) {
780 case S9000_ID_HCRX:
781 /* HyperA or HyperB ? */
782 if (revno == 0x8408 || revno == 0x840b)
783 goto msg_not_supported;
784 break;
785 case CRT_ID_THUNDER:
786 if (revno == 0x8509)
787 goto msg_not_supported;
788 break;
789 case CRT_ID_THUNDER2:
790 if (revno == 0x850c)
791 goto msg_not_supported;
792 }
793 ok:
794 return 1;
795
796 msg_not_supported:
797 printk(KERN_ERR "Sorry, this GSC/STI card is not yet supported.\n");
798 printk(KERN_ERR "Please see http://parisc-linux.org/faq/"
799 "graphics-howto.html for more info.\n");
800 /* fall through */
801 out_err:
802 kfree(raw);
803 kfree(cooked);
804 return 0;
805 }
806
807 static struct sti_struct * __devinit
808 sti_try_rom_generic(unsigned long address, unsigned long hpa, struct pci_dev *pd)
809 {
810 struct sti_struct *sti;
811 int ok;
812 u32 sig;
813
814 if (num_sti_roms >= MAX_STI_ROMS) {
815 printk(KERN_WARNING "maximum number of STI ROMS reached !\n");
816 return NULL;
817 }
818
819 sti = kzalloc(sizeof(*sti), GFP_KERNEL);
820 if (!sti) {
821 printk(KERN_ERR "Not enough memory !\n");
822 return NULL;
823 }
824
825 spin_lock_init(&sti->lock);
826
827 test_rom:
828 /* if we can't read the ROM, bail out early. Not being able
829 * to read the hpa is okay, for romless sti */
830 if (pdc_add_valid(address))
831 goto out_err;
832
833 sig = gsc_readl(address);
834
835 /* check for a PCI ROM structure */
836 if ((le32_to_cpu(sig)==0xaa55)) {
837 unsigned int i, rm_offset;
838 u32 *rm;
839 i = gsc_readl(address+0x04);
840 if (i != 1) {
841 /* The ROM could have multiple architecture
842 * dependent images (e.g. i386, parisc,...) */
843 printk(KERN_WARNING
844 "PCI ROM is not a STI ROM type image (0x%8x)\n", i);
845 goto out_err;
846 }
847
848 sti->pd = pd;
849
850 i = gsc_readl(address+0x0c);
851 DPRINTK(("PCI ROM size (from header) = %d kB\n",
852 le16_to_cpu(i>>16)*512/1024));
853 rm_offset = le16_to_cpu(i & 0xffff);
854 if (rm_offset) {
855 /* read 16 bytes from the pci region mapper array */
856 rm = (u32*) &sti->rm_entry;
857 *rm++ = gsc_readl(address+rm_offset+0x00);
858 *rm++ = gsc_readl(address+rm_offset+0x04);
859 *rm++ = gsc_readl(address+rm_offset+0x08);
860 *rm++ = gsc_readl(address+rm_offset+0x0c);
861 DPRINTK(("PCI region Mapper offset = %08x: ",
862 rm_offset));
863 for (i=0; i<16; i++)
864 DPRINTK(("%02x ", sti->rm_entry[i]));
865 DPRINTK(("\n"));
866 }
867
868 address += le32_to_cpu(gsc_readl(address+8));
869 DPRINTK(("sig %04x, PCI STI ROM at %08lx\n", sig, address));
870 goto test_rom;
871 }
872
873 ok = 0;
874
875 if ((sig & 0xff) == 0x01) {
876 DPRINTK((" byte mode ROM at %08lx, hpa at %08lx\n",
877 address, hpa));
878 ok = sti_read_rom(0, sti, address);
879 }
880
881 if ((sig & 0xffff) == 0x0303) {
882 DPRINTK((" word mode ROM at %08lx, hpa at %08lx\n",
883 address, hpa));
884 ok = sti_read_rom(1, sti, address);
885 }
886
887 if (!ok)
888 goto out_err;
889
890 if (sti_init_glob_cfg(sti, address, hpa))
891 goto out_err; /* not enough memory */
892
893 /* disable STI PCI ROM. ROM and card RAM overlap and
894 * leaving it enabled would force HPMCs
895 */
896 if (sti->pd) {
897 unsigned long rom_base;
898 rom_base = pci_resource_start(sti->pd, PCI_ROM_RESOURCE);
899 pci_write_config_dword(sti->pd, PCI_ROM_ADDRESS, rom_base & ~PCI_ROM_ADDRESS_ENABLE);
900 DPRINTK((KERN_DEBUG "STI PCI ROM disabled\n"));
901 }
902
903 if (sti_init_graph(sti))
904 goto out_err;
905
906 sti_inq_conf(sti);
907 sti_dump_globcfg(sti->glob_cfg, sti->sti_mem_request);
908 sti_dump_outptr(sti);
909
910 printk(KERN_INFO " graphics card name: %s\n", sti->outptr.dev_name );
911
912 sti_roms[num_sti_roms] = sti;
913 num_sti_roms++;
914
915 return sti;
916
917 out_err:
918 kfree(sti);
919 return NULL;
920 }
921
922 static void __devinit sticore_check_for_default_sti(struct sti_struct *sti, char *path)
923 {
924 if (strcmp (path, default_sti_path) == 0)
925 default_sti = sti;
926 }
927
928 /*
929 * on newer systems PDC gives the address of the ROM
930 * in the additional address field addr[1] while on
931 * older Systems the PDC stores it in page0->proc_sti
932 */
933 static int __devinit sticore_pa_init(struct parisc_device *dev)
934 {
935 char pa_path[21];
936 struct sti_struct *sti = NULL;
937 int hpa = dev->hpa.start;
938
939 if (dev->num_addrs && dev->addr[0])
940 sti = sti_try_rom_generic(dev->addr[0], hpa, NULL);
941 if (!sti)
942 sti = sti_try_rom_generic(hpa, hpa, NULL);
943 if (!sti)
944 sti = sti_try_rom_generic(PAGE0->proc_sti, hpa, NULL);
945 if (!sti)
946 return 1;
947
948 print_pa_hwpath(dev, pa_path);
949 sticore_check_for_default_sti(sti, pa_path);
950 return 0;
951 }
952
953
954 static int __devinit sticore_pci_init(struct pci_dev *pd,
955 const struct pci_device_id *ent)
956 {
957 #ifdef CONFIG_PCI
958 unsigned long fb_base, rom_base;
959 unsigned int fb_len, rom_len;
960 int err;
961 struct sti_struct *sti;
962
963 err = pci_enable_device(pd);
964 if (err < 0) {
965 dev_err(&pd->dev, "Cannot enable PCI device\n");
966 return err;
967 }
968
969 fb_base = pci_resource_start(pd, 0);
970 fb_len = pci_resource_len(pd, 0);
971 rom_base = pci_resource_start(pd, PCI_ROM_RESOURCE);
972 rom_len = pci_resource_len(pd, PCI_ROM_RESOURCE);
973 if (rom_base) {
974 pci_write_config_dword(pd, PCI_ROM_ADDRESS, rom_base | PCI_ROM_ADDRESS_ENABLE);
975 DPRINTK((KERN_DEBUG "STI PCI ROM enabled at 0x%08lx\n", rom_base));
976 }
977
978 printk(KERN_INFO "STI PCI graphic ROM found at %08lx (%u kB), fb at %08lx (%u MB)\n",
979 rom_base, rom_len/1024, fb_base, fb_len/1024/1024);
980
981 DPRINTK((KERN_DEBUG "Trying PCI STI ROM at %08lx, PCI hpa at %08lx\n",
982 rom_base, fb_base));
983
984 sti = sti_try_rom_generic(rom_base, fb_base, pd);
985 if (sti) {
986 char pa_path[30];
987 print_pci_hwpath(pd, pa_path);
988 sticore_check_for_default_sti(sti, pa_path);
989 }
990
991 if (!sti) {
992 printk(KERN_WARNING "Unable to handle STI device '%s'\n",
993 pci_name(pd));
994 return -ENODEV;
995 }
996 #endif /* CONFIG_PCI */
997
998 return 0;
999 }
1000
1001
1002 static void __devexit sticore_pci_remove(struct pci_dev *pd)
1003 {
1004 BUG();
1005 }
1006
1007
1008 static struct pci_device_id sti_pci_tbl[] = {
1009 { PCI_DEVICE(PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_VISUALIZE_EG) },
1010 { PCI_DEVICE(PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_VISUALIZE_FX6) },
1011 { PCI_DEVICE(PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_VISUALIZE_FX4) },
1012 { PCI_DEVICE(PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_VISUALIZE_FX2) },
1013 { PCI_DEVICE(PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_VISUALIZE_FXE) },
1014 { 0, } /* terminate list */
1015 };
1016 MODULE_DEVICE_TABLE(pci, sti_pci_tbl);
1017
1018 static struct pci_driver pci_sti_driver = {
1019 .name = "sti",
1020 .id_table = sti_pci_tbl,
1021 .probe = sticore_pci_init,
1022 .remove = sticore_pci_remove,
1023 };
1024
1025 static struct parisc_device_id sti_pa_tbl[] = {
1026 { HPHW_FIO, HVERSION_REV_ANY_ID, HVERSION_ANY_ID, 0x00077 },
1027 { HPHW_FIO, HVERSION_REV_ANY_ID, HVERSION_ANY_ID, 0x00085 },
1028 { 0, }
1029 };
1030
1031 static struct parisc_driver pa_sti_driver = {
1032 .name = "sti",
1033 .id_table = sti_pa_tbl,
1034 .probe = sticore_pa_init,
1035 };
1036
1037
1038 /*
1039 * sti_init_roms() - detects all STI ROMs and stores them in sti_roms[]
1040 */
1041
1042 static int sticore_initialized __read_mostly;
1043
1044 static void __devinit sti_init_roms(void)
1045 {
1046 if (sticore_initialized)
1047 return;
1048
1049 sticore_initialized = 1;
1050
1051 printk(KERN_INFO "STI GSC/PCI core graphics driver "
1052 STI_DRIVERVERSION "\n");
1053
1054 /* Register drivers for native & PCI cards */
1055 register_parisc_driver(&pa_sti_driver);
1056 WARN_ON(pci_register_driver(&pci_sti_driver));
1057
1058 /* if we didn't find the given default sti, take the first one */
1059 if (!default_sti)
1060 default_sti = sti_roms[0];
1061
1062 }
1063
1064 /*
1065 * index = 0 gives default sti
1066 * index > 0 gives other stis in detection order
1067 */
1068 struct sti_struct * sti_get_rom(unsigned int index)
1069 {
1070 if (!sticore_initialized)
1071 sti_init_roms();
1072
1073 if (index == 0)
1074 return default_sti;
1075
1076 if (index > num_sti_roms)
1077 return NULL;
1078
1079 return sti_roms[index-1];
1080 }
1081 EXPORT_SYMBOL(sti_get_rom);
1082
1083 MODULE_AUTHOR("Philipp Rumpf, Helge Deller, Thomas Bogendoerfer");
1084 MODULE_DESCRIPTION("Core STI driver for HP's NGLE series graphics cards in HP PARISC machines");
1085 MODULE_LICENSE("GPL v2");
1086