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