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fs: use kmem_cache_zalloc instead
[pv_ops_mirror.git] / drivers / video / console / sticore.c
blobe9ab657f0bb795634b21e5bc57217dfb560c56a3
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 static void sti_flush(unsigned long start, unsigned long end)
236 {
237 flush_icache_range(start, end);
238 }
239
240 void __devinit
241 sti_rom_copy(unsigned long base, unsigned long count, void *dest)
242 {
243 unsigned long dest_start = (unsigned long) dest;
244
245 /* this still needs to be revisited (see arch/parisc/mm/init.c:246) ! */
246 while (count >= 4) {
247 count -= 4;
248 *(u32 *)dest = gsc_readl(base);
249 base += 4;
250 dest += 4;
251 }
252 while (count) {
253 count--;
254 *(u8 *)dest = gsc_readb(base);
255 base++;
256 dest++;
257 }
258
259 sti_flush(dest_start, (unsigned long)dest);
260 }
261
262
263
264
265 static char default_sti_path[21] __read_mostly;
266
267 #ifndef MODULE
268 static int __devinit sti_setup(char *str)
269 {
270 if (str)
271 strlcpy (default_sti_path, str, sizeof (default_sti_path));
272
273 return 1;
274 }
275
276 /* Assuming the machine has multiple STI consoles (=graphic cards) which
277 * all get detected by sticon, the user may define with the linux kernel
278 * parameter sti=<x> which of them will be the initial boot-console.
279 * <x> is a number between 0 and MAX_STI_ROMS, with 0 as the default
280 * STI screen.
281 */
282 __setup("sti=", sti_setup);
283 #endif
284
285
286
287 static char __devinitdata *font_name[MAX_STI_ROMS] = { "VGA8x16", };
288 static int __devinitdata font_index[MAX_STI_ROMS],
289 font_height[MAX_STI_ROMS],
290 font_width[MAX_STI_ROMS];
291 #ifndef MODULE
292 static int __devinit sti_font_setup(char *str)
293 {
294 char *x;
295 int i = 0;
296
297 /* we accept sti_font=VGA8x16, sti_font=10x20, sti_font=10*20
298 * or sti_font=7 style command lines. */
299
300 while (i<MAX_STI_ROMS && str && *str) {
301 if (*str>='0' && *str<='9') {
302 if ((x = strchr(str, 'x')) || (x = strchr(str, '*'))) {
303 font_height[i] = simple_strtoul(str, NULL, 0);
304 font_width[i] = simple_strtoul(x+1, NULL, 0);
305 } else {
306 font_index[i] = simple_strtoul(str, NULL, 0);
307 }
308 } else {
309 font_name[i] = str; /* fb font name */
310 }
311
312 if ((x = strchr(str, ',')))
313 *x++ = 0;
314 str = x;
315
316 i++;
317 }
318
319 return 1;
320 }
321
322 /* The optional linux kernel parameter "sti_font" defines which font
323 * should be used by the sticon driver to draw characters to the screen.
324 * Possible values are:
325 * - sti_font=<fb_fontname>:
326 * <fb_fontname> is the name of one of the linux-kernel built-in
327 * framebuffer font names (e.g. VGA8x16, SUN22x18).
328 * This is only available if the fonts have been statically compiled
329 * in with e.g. the CONFIG_FONT_8x16 or CONFIG_FONT_SUN12x22 options.
330 * - sti_font=<number>
331 * most STI ROMs have built-in HP specific fonts, which can be selected
332 * by giving the desired number to the sticon driver.
333 * NOTE: This number is machine and STI ROM dependend.
334 * - sti_font=<height>x<width> (e.g. sti_font=16x8)
335 * <height> and <width> gives hints to the height and width of the
336 * font which the user wants. The sticon driver will try to use
337 * a font with this height and width, but if no suitable font is
338 * found, sticon will use the default 8x8 font.
339 */
340 __setup("sti_font=", sti_font_setup);
341 #endif
342
343
344
345 static void __devinit
346 sti_dump_globcfg(struct sti_glob_cfg *glob_cfg, unsigned int sti_mem_request)
347 {
348 struct sti_glob_cfg_ext *cfg;
349
350 DPRINTK((KERN_INFO
351 "%d text planes\n"
352 "%4d x %4d screen resolution\n"
353 "%4d x %4d offscreen\n"
354 "%4d x %4d layout\n"
355 "regions at %08x %08x %08x %08x\n"
356 "regions at %08x %08x %08x %08x\n"
357 "reent_lvl %d\n"
358 "save_addr %08x\n",
359 glob_cfg->text_planes,
360 glob_cfg->onscreen_x, glob_cfg->onscreen_y,
361 glob_cfg->offscreen_x, glob_cfg->offscreen_y,
362 glob_cfg->total_x, glob_cfg->total_y,
363 glob_cfg->region_ptrs[0], glob_cfg->region_ptrs[1],
364 glob_cfg->region_ptrs[2], glob_cfg->region_ptrs[3],
365 glob_cfg->region_ptrs[4], glob_cfg->region_ptrs[5],
366 glob_cfg->region_ptrs[6], glob_cfg->region_ptrs[7],
367 glob_cfg->reent_lvl,
368 glob_cfg->save_addr));
369
370 /* dump extended cfg */
371 cfg = PTR_STI((unsigned long)glob_cfg->ext_ptr);
372 DPRINTK(( KERN_INFO
373 "monitor %d\n"
374 "in friendly mode: %d\n"
375 "power consumption %d watts\n"
376 "freq ref %d\n"
377 "sti_mem_addr %08x (size=%d bytes)\n",
378 cfg->curr_mon,
379 cfg->friendly_boot,
380 cfg->power,
381 cfg->freq_ref,
382 cfg->sti_mem_addr, sti_mem_request));
383 }
384
385 static void __devinit
386 sti_dump_outptr(struct sti_struct *sti)
387 {
388 DPRINTK((KERN_INFO
389 "%d bits per pixel\n"
390 "%d used bits\n"
391 "%d planes\n"
392 "attributes %08x\n",
393 sti->outptr.bits_per_pixel,
394 sti->outptr.bits_used,
395 sti->outptr.planes,
396 sti->outptr.attributes));
397 }
398
399 static int __devinit
400 sti_init_glob_cfg(struct sti_struct *sti,
401 unsigned long rom_address, unsigned long hpa)
402 {
403 struct sti_glob_cfg *glob_cfg;
404 struct sti_glob_cfg_ext *glob_cfg_ext;
405 void *save_addr;
406 void *sti_mem_addr;
407 const int save_addr_size = 1024; /* XXX */
408 int i;
409
410 if (!sti->sti_mem_request)
411 sti->sti_mem_request = 256; /* STI default */
412
413 glob_cfg = kzalloc(sizeof(*sti->glob_cfg), GFP_KERNEL);
414 glob_cfg_ext = kzalloc(sizeof(*glob_cfg_ext), GFP_KERNEL);
415 save_addr = kzalloc(save_addr_size, GFP_KERNEL);
416 sti_mem_addr = kzalloc(sti->sti_mem_request, GFP_KERNEL);
417
418 if (!(glob_cfg && glob_cfg_ext && save_addr && sti_mem_addr)) {
419 kfree(glob_cfg);
420 kfree(glob_cfg_ext);
421 kfree(save_addr);
422 kfree(sti_mem_addr);
423 return -ENOMEM;
424 }
425
426 glob_cfg->ext_ptr = STI_PTR(glob_cfg_ext);
427 glob_cfg->save_addr = STI_PTR(save_addr);
428 for (i=0; i<8; i++) {
429 unsigned long newhpa, len;
430
431 if (sti->pd) {
432 unsigned char offs = sti->rm_entry[i];
433
434 if (offs == 0)
435 continue;
436 if (offs != PCI_ROM_ADDRESS &&
437 (offs < PCI_BASE_ADDRESS_0 ||
438 offs > PCI_BASE_ADDRESS_5)) {
439 printk (KERN_WARNING
440 "STI pci region maping for region %d (%02x) can't be mapped\n",
441 i,sti->rm_entry[i]);
442 continue;
443 }
444 newhpa = pci_resource_start (sti->pd, (offs - PCI_BASE_ADDRESS_0) / 4);
445 } else
446 newhpa = (i == 0) ? rom_address : hpa;
447
448 sti->regions_phys[i] =
449 REGION_OFFSET_TO_PHYS(sti->regions[i], newhpa);
450
451 len = sti->regions[i].region_desc.length * 4096;
452 if (len)
453 glob_cfg->region_ptrs[i] = sti->regions_phys[i];
454
455 DPRINTK(("region #%d: phys %08lx, region_ptr %08x, len=%lukB, "
456 "btlb=%d, sysonly=%d, cache=%d, last=%d\n",
457 i, sti->regions_phys[i], glob_cfg->region_ptrs[i],
458 len/1024,
459 sti->regions[i].region_desc.btlb,
460 sti->regions[i].region_desc.sys_only,
461 sti->regions[i].region_desc.cache,
462 sti->regions[i].region_desc.last));
463
464 /* last entry reached ? */
465 if (sti->regions[i].region_desc.last)
466 break;
467 }
468
469 if (++i<8 && sti->regions[i].region)
470 printk(KERN_WARNING "%s: *future ptr (0x%8x) not yet supported !\n",
471 __FILE__, sti->regions[i].region);
472
473 glob_cfg_ext->sti_mem_addr = STI_PTR(sti_mem_addr);
474
475 sti->glob_cfg = glob_cfg;
476
477 return 0;
478 }
479
480 #ifdef CONFIG_FB
481 struct sti_cooked_font * __devinit
482 sti_select_fbfont(struct sti_cooked_rom *cooked_rom, const char *fbfont_name)
483 {
484 const struct font_desc *fbfont;
485 unsigned int size, bpc;
486 void *dest;
487 struct sti_rom_font *nf;
488 struct sti_cooked_font *cooked_font;
489
490 if (!fbfont_name || !strlen(fbfont_name))
491 return NULL;
492 fbfont = find_font(fbfont_name);
493 if (!fbfont)
494 fbfont = get_default_font(1024,768, ~(u32)0, ~(u32)0);
495 if (!fbfont)
496 return NULL;
497
498 DPRINTK((KERN_DEBUG "selected %dx%d fb-font %s\n",
499 fbfont->width, fbfont->height, fbfont->name));
500
501 bpc = ((fbfont->width+7)/8) * fbfont->height;
502 size = bpc * 256;
503 size += sizeof(struct sti_rom_font);
504
505 nf = kzalloc(size, GFP_KERNEL);
506 if (!nf)
507 return NULL;
508
509 nf->first_char = 0;
510 nf->last_char = 255;
511 nf->width = fbfont->width;
512 nf->height = fbfont->height;
513 nf->font_type = STI_FONT_HPROMAN8;
514 nf->bytes_per_char = bpc;
515 nf->next_font = 0;
516 nf->underline_height = 1;
517 nf->underline_pos = fbfont->height - nf->underline_height;
518
519 dest = nf;
520 dest += sizeof(struct sti_rom_font);
521 memcpy(dest, fbfont->data, bpc*256);
522
523 cooked_font = kzalloc(sizeof(*cooked_font), GFP_KERNEL);
524 if (!cooked_font) {
525 kfree(nf);
526 return NULL;
527 }
528
529 cooked_font->raw = nf;
530 cooked_font->next_font = NULL;
531
532 cooked_rom->font_start = cooked_font;
533
534 return cooked_font;
535 }
536 #else
537 struct sti_cooked_font * __devinit
538 sti_select_fbfont(struct sti_cooked_rom *cooked_rom, const char *fbfont_name)
539 {
540 return NULL;
541 }
542 #endif
543
544 struct sti_cooked_font * __devinit
545 sti_select_font(struct sti_cooked_rom *rom,
546 int (*search_font_fnc) (struct sti_cooked_rom *,int,int) )
547 {
548 struct sti_cooked_font *font;
549 int i;
550 int index = num_sti_roms;
551
552 /* check for framebuffer-font first */
553 if ((font = sti_select_fbfont(rom, font_name[index])))
554 return font;
555
556 if (font_width[index] && font_height[index])
557 font_index[index] = search_font_fnc(rom,
558 font_height[index], font_width[index]);
559
560 for (font = rom->font_start, i = font_index[index];
561 font && (i > 0);
562 font = font->next_font, i--);
563
564 if (font)
565 return font;
566 else
567 return rom->font_start;
568 }
569
570
571 static void __devinit
572 sti_dump_rom(struct sti_rom *rom)
573 {
574 printk(KERN_INFO " id %04x-%04x, conforms to spec rev. %d.%02x\n",
575 rom->graphics_id[0],
576 rom->graphics_id[1],
577 rom->revno[0] >> 4,
578 rom->revno[0] & 0x0f);
579 DPRINTK((" supports %d monitors\n", rom->num_mons));
580 DPRINTK((" font start %08x\n", rom->font_start));
581 DPRINTK((" region list %08x\n", rom->region_list));
582 DPRINTK((" init_graph %08x\n", rom->init_graph));
583 DPRINTK((" bus support %02x\n", rom->bus_support));
584 DPRINTK((" ext bus support %02x\n", rom->ext_bus_support));
585 DPRINTK((" alternate code type %d\n", rom->alt_code_type));
586 }
587
588
589 static int __devinit
590 sti_cook_fonts(struct sti_cooked_rom *cooked_rom,
591 struct sti_rom *raw_rom)
592 {
593 struct sti_rom_font *raw_font, *font_start;
594 struct sti_cooked_font *cooked_font;
595
596 cooked_font = kzalloc(sizeof(*cooked_font), GFP_KERNEL);
597 if (!cooked_font)
598 return 0;
599
600 cooked_rom->font_start = cooked_font;
601
602 raw_font = ((void *)raw_rom) + (raw_rom->font_start);
603
604 font_start = raw_font;
605 cooked_font->raw = raw_font;
606
607 while (raw_font->next_font) {
608 raw_font = ((void *)font_start) + (raw_font->next_font);
609
610 cooked_font->next_font = kzalloc(sizeof(*cooked_font), GFP_KERNEL);
611 if (!cooked_font->next_font)
612 return 1;
613
614 cooked_font = cooked_font->next_font;
615
616 cooked_font->raw = raw_font;
617 }
618
619 cooked_font->next_font = NULL;
620 return 1;
621 }
622
623
624 static int __devinit
625 sti_search_font(struct sti_cooked_rom *rom, int height, int width)
626 {
627 struct sti_cooked_font *font;
628 int i = 0;
629
630 for (font = rom->font_start; font; font = font->next_font, i++) {
631 if ((font->raw->width == width) &&
632 (font->raw->height == height))
633 return i;
634 }
635 return 0;
636 }
637
638 #define BMODE_RELOCATE(offset) offset = (offset) / 4;
639 #define BMODE_LAST_ADDR_OFFS 0x50
640
641 static void * __devinit
642 sti_bmode_font_raw(struct sti_cooked_font *f)
643 {
644 unsigned char *n, *p, *q;
645 int size = f->raw->bytes_per_char*256+sizeof(struct sti_rom_font);
646
647 n = kzalloc (4*size, GFP_KERNEL);
648 if (!n)
649 return NULL;
650 p = n + 3;
651 q = (unsigned char *)f->raw;
652 while (size--) {
653 *p = *q++;
654 p+=4;
655 }
656 return n + 3;
657 }
658
659 static void __devinit
660 sti_bmode_rom_copy(unsigned long base, unsigned long count, void *dest)
661 {
662 unsigned long dest_start = (unsigned long) dest;
663
664 while (count) {
665 count--;
666 *(u8 *)dest = gsc_readl(base);
667 base += 4;
668 dest++;
669 }
670
671 sti_flush(dest_start, (unsigned long)dest);
672 }
673
674 static struct sti_rom * __devinit
675 sti_get_bmode_rom (unsigned long address)
676 {
677 struct sti_rom *raw;
678 u32 size;
679 struct sti_rom_font *raw_font, *font_start;
680
681 sti_bmode_rom_copy(address + BMODE_LAST_ADDR_OFFS, sizeof(size), &size);
682
683 size = (size+3) / 4;
684 raw = kmalloc(size, GFP_KERNEL);
685 if (raw) {
686 sti_bmode_rom_copy(address, size, raw);
687 memmove (&raw->res004, &raw->type[0], 0x3c);
688 raw->type[3] = raw->res004;
689
690 BMODE_RELOCATE (raw->region_list);
691 BMODE_RELOCATE (raw->font_start);
692
693 BMODE_RELOCATE (raw->init_graph);
694 BMODE_RELOCATE (raw->state_mgmt);
695 BMODE_RELOCATE (raw->font_unpmv);
696 BMODE_RELOCATE (raw->block_move);
697 BMODE_RELOCATE (raw->inq_conf);
698
699 raw_font = ((void *)raw) + raw->font_start;
700 font_start = raw_font;
701
702 while (raw_font->next_font) {
703 BMODE_RELOCATE (raw_font->next_font);
704 raw_font = ((void *)font_start) + raw_font->next_font;
705 }
706 }
707 return raw;
708 }
709
710 struct sti_rom * __devinit
711 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
726 int __devinit
727 sti_read_rom(int wordmode, struct sti_struct *sti, unsigned long address)
728 {
729 struct sti_cooked_rom *cooked;
730 struct sti_rom *raw = NULL;
731
732 cooked = kmalloc(sizeof *cooked, GFP_KERNEL);
733 if (!cooked)
734 goto out_err;
735
736 if (wordmode)
737 raw = sti_get_wmode_rom (address);
738 else
739 raw = sti_get_bmode_rom (address);
740
741 if (!raw)
742 goto out_err;
743
744 if (!sti_cook_fonts(cooked, raw)) {
745 printk(KERN_ERR "No font found for STI at %08lx\n", address);
746 goto out_err;
747 }
748
749 if (raw->region_list)
750 memcpy(sti->regions, ((void *)raw)+raw->region_list, sizeof(sti->regions));
751
752 address = (unsigned long) STI_PTR(raw);
753
754 sti->font_unpmv = address + (raw->font_unpmv & 0x03ffffff);
755 sti->block_move = address + (raw->block_move & 0x03ffffff);
756 sti->init_graph = address + (raw->init_graph & 0x03ffffff);
757 sti->inq_conf = address + (raw->inq_conf & 0x03ffffff);
758
759 sti->rom = cooked;
760 sti->rom->raw = raw;
761
762 sti->font = sti_select_font(sti->rom, sti_search_font);
763 sti->font_width = sti->font->raw->width;
764 sti->font_height = sti->font->raw->height;
765 if (!wordmode)
766 sti->font->raw = sti_bmode_font_raw(sti->font);
767
768 sti->sti_mem_request = raw->sti_mem_req;
769 sti->graphics_id[0] = raw->graphics_id[0];
770 sti->graphics_id[1] = raw->graphics_id[1];
771
772 sti_dump_rom(raw);
773
774 return 1;
775
776 out_err:
777 kfree(raw);
778 kfree(cooked);
779 return 0;
780 }
781
782 static struct sti_struct * __devinit
783 sti_try_rom_generic(unsigned long address, unsigned long hpa, struct pci_dev *pd)
784 {
785 struct sti_struct *sti;
786 int ok;
787 u32 sig;
788
789 if (num_sti_roms >= MAX_STI_ROMS) {
790 printk(KERN_WARNING "maximum number of STI ROMS reached !\n");
791 return NULL;
792 }
793
794 sti = kzalloc(sizeof(*sti), GFP_KERNEL);
795 if (!sti) {
796 printk(KERN_ERR "Not enough memory !\n");
797 return NULL;
798 }
799
800 spin_lock_init(&sti->lock);
801
802 test_rom:
803 /* if we can't read the ROM, bail out early. Not being able
804 * to read the hpa is okay, for romless sti */
805 if (pdc_add_valid(address))
806 goto out_err;
807
808 sig = gsc_readl(address);
809
810 /* check for a PCI ROM structure */
811 if ((le32_to_cpu(sig)==0xaa55)) {
812 unsigned int i, rm_offset;
813 u32 *rm;
814 i = gsc_readl(address+0x04);
815 if (i != 1) {
816 /* The ROM could have multiple architecture
817 * dependent images (e.g. i386, parisc,...) */
818 printk(KERN_WARNING
819 "PCI ROM is not a STI ROM type image (0x%8x)\n", i);
820 goto out_err;
821 }
822
823 sti->pd = pd;
824
825 i = gsc_readl(address+0x0c);
826 DPRINTK(("PCI ROM size (from header) = %d kB\n",
827 le16_to_cpu(i>>16)*512/1024));
828 rm_offset = le16_to_cpu(i & 0xffff);
829 if (rm_offset) {
830 /* read 16 bytes from the pci region mapper array */
831 rm = (u32*) &sti->rm_entry;
832 *rm++ = gsc_readl(address+rm_offset+0x00);
833 *rm++ = gsc_readl(address+rm_offset+0x04);
834 *rm++ = gsc_readl(address+rm_offset+0x08);
835 *rm++ = gsc_readl(address+rm_offset+0x0c);
836 DPRINTK(("PCI region Mapper offset = %08x: ",
837 rm_offset));
838 for (i=0; i<16; i++)
839 DPRINTK(("%02x ", sti->rm_entry[i]));
840 DPRINTK(("\n"));
841 }
842
843 address += le32_to_cpu(gsc_readl(address+8));
844 DPRINTK(("sig %04x, PCI STI ROM at %08lx\n", sig, address));
845 goto test_rom;
846 }
847
848 ok = 0;
849
850 if ((sig & 0xff) == 0x01) {
851 DPRINTK((" byte mode ROM at %08lx, hpa at %08lx\n",
852 address, hpa));
853 ok = sti_read_rom(0, sti, address);
854 }
855
856 if ((sig & 0xffff) == 0x0303) {
857 DPRINTK((" word mode ROM at %08lx, hpa at %08lx\n",
858 address, hpa));
859 ok = sti_read_rom(1, sti, address);
860 }
861
862 if (!ok)
863 goto out_err;
864
865 if (sti_init_glob_cfg(sti, address, hpa))
866 goto out_err; /* not enough memory */
867
868 /* disable STI PCI ROM. ROM and card RAM overlap and
869 * leaving it enabled would force HPMCs
870 */
871 if (sti->pd) {
872 unsigned long rom_base;
873 rom_base = pci_resource_start(sti->pd, PCI_ROM_RESOURCE);
874 pci_write_config_dword(sti->pd, PCI_ROM_ADDRESS, rom_base & ~PCI_ROM_ADDRESS_ENABLE);
875 DPRINTK((KERN_DEBUG "STI PCI ROM disabled\n"));
876 }
877
878 if (sti_init_graph(sti))
879 goto out_err;
880
881 sti_inq_conf(sti);
882 sti_dump_globcfg(sti->glob_cfg, sti->sti_mem_request);
883 sti_dump_outptr(sti);
884
885 printk(KERN_INFO " graphics card name: %s\n", sti->outptr.dev_name );
886
887 sti_roms[num_sti_roms] = sti;
888 num_sti_roms++;
889
890 return sti;
891
892 out_err:
893 kfree(sti);
894 return NULL;
895 }
896
897 static void __devinit sticore_check_for_default_sti(struct sti_struct *sti, char *path)
898 {
899 if (strcmp (path, default_sti_path) == 0)
900 default_sti = sti;
901 }
902
903 /*
904 * on newer systems PDC gives the address of the ROM
905 * in the additional address field addr[1] while on
906 * older Systems the PDC stores it in page0->proc_sti
907 */
908 static int __devinit sticore_pa_init(struct parisc_device *dev)
909 {
910 char pa_path[21];
911 struct sti_struct *sti = NULL;
912 int hpa = dev->hpa.start;
913
914 if (dev->num_addrs && dev->addr[0])
915 sti = sti_try_rom_generic(dev->addr[0], hpa, NULL);
916 if (!sti)
917 sti = sti_try_rom_generic(hpa, hpa, NULL);
918 if (!sti)
919 sti = sti_try_rom_generic(PAGE0->proc_sti, hpa, NULL);
920 if (!sti)
921 return 1;
922
923 print_pa_hwpath(dev, pa_path);
924 sticore_check_for_default_sti(sti, pa_path);
925 return 0;
926 }
927
928
929 static int __devinit sticore_pci_init(struct pci_dev *pd,
930 const struct pci_device_id *ent)
931 {
932 #ifdef CONFIG_PCI
933 unsigned long fb_base, rom_base;
934 unsigned int fb_len, rom_len;
935 struct sti_struct *sti;
936
937 pci_enable_device(pd);
938
939 fb_base = pci_resource_start(pd, 0);
940 fb_len = pci_resource_len(pd, 0);
941 rom_base = pci_resource_start(pd, PCI_ROM_RESOURCE);
942 rom_len = pci_resource_len(pd, PCI_ROM_RESOURCE);
943 if (rom_base) {
944 pci_write_config_dword(pd, PCI_ROM_ADDRESS, rom_base | PCI_ROM_ADDRESS_ENABLE);
945 DPRINTK((KERN_DEBUG "STI PCI ROM enabled at 0x%08lx\n", rom_base));
946 }
947
948 printk(KERN_INFO "STI PCI graphic ROM found at %08lx (%u kB), fb at %08lx (%u MB)\n",
949 rom_base, rom_len/1024, fb_base, fb_len/1024/1024);
950
951 DPRINTK((KERN_DEBUG "Trying PCI STI ROM at %08lx, PCI hpa at %08lx\n",
952 rom_base, fb_base));
953
954 sti = sti_try_rom_generic(rom_base, fb_base, pd);
955 if (sti) {
956 char pa_path[30];
957 print_pci_hwpath(pd, pa_path);
958 sticore_check_for_default_sti(sti, pa_path);
959 }
960
961 if (!sti) {
962 printk(KERN_WARNING "Unable to handle STI device '%s'\n",
963 pci_name(pd));
964 return -ENODEV;
965 }
966 #endif /* CONFIG_PCI */
967
968 return 0;
969 }
970
971
972 static void __devexit sticore_pci_remove(struct pci_dev *pd)
973 {
974 BUG();
975 }
976
977
978 static struct pci_device_id sti_pci_tbl[] = {
979 { PCI_DEVICE(PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_VISUALIZE_EG) },
980 { PCI_DEVICE(PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_VISUALIZE_FX6) },
981 { PCI_DEVICE(PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_VISUALIZE_FX4) },
982 { PCI_DEVICE(PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_VISUALIZE_FX2) },
983 { PCI_DEVICE(PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_VISUALIZE_FXE) },
984 { 0, } /* terminate list */
985 };
986 MODULE_DEVICE_TABLE(pci, sti_pci_tbl);
987
988 static struct pci_driver pci_sti_driver = {
989 .name = "sti",
990 .id_table = sti_pci_tbl,
991 .probe = sticore_pci_init,
992 .remove = sticore_pci_remove,
993 };
994
995 static struct parisc_device_id sti_pa_tbl[] = {
996 { HPHW_FIO, HVERSION_REV_ANY_ID, HVERSION_ANY_ID, 0x00077 },
997 { HPHW_FIO, HVERSION_REV_ANY_ID, HVERSION_ANY_ID, 0x00085 },
998 { 0, }
999 };
1000
1001 static struct parisc_driver pa_sti_driver = {
1002 .name = "sti",
1003 .id_table = sti_pa_tbl,
1004 .probe = sticore_pa_init,
1005 };
1006
1007
1008 /*
1009 * sti_init_roms() - detects all STI ROMs and stores them in sti_roms[]
1010 */
1011
1012 static int sticore_initialized __read_mostly;
1013
1014 static void __devinit sti_init_roms(void)
1015 {
1016 if (sticore_initialized)
1017 return;
1018
1019 sticore_initialized = 1;
1020
1021 printk(KERN_INFO "STI GSC/PCI core graphics driver "
1022 STI_DRIVERVERSION "\n");
1023
1024 /* Register drivers for native & PCI cards */
1025 register_parisc_driver(&pa_sti_driver);
1026 pci_register_driver(&pci_sti_driver);
1027
1028 /* if we didn't find the given default sti, take the first one */
1029 if (!default_sti)
1030 default_sti = sti_roms[0];
1031
1032 }
1033
1034 /*
1035 * index = 0 gives default sti
1036 * index > 0 gives other stis in detection order
1037 */
1038 struct sti_struct * sti_get_rom(unsigned int index)
1039 {
1040 if (!sticore_initialized)
1041 sti_init_roms();
1042
1043 if (index == 0)
1044 return default_sti;
1045
1046 if (index > num_sti_roms)
1047 return NULL;
1048
1049 return sti_roms[index-1];
1050 }
1051 EXPORT_SYMBOL(sti_get_rom);
1052
1053 MODULE_AUTHOR("Philipp Rumpf, Helge Deller, Thomas Bogendoerfer");
1054 MODULE_DESCRIPTION("Core STI driver for HP's NGLE series graphics cards in HP PARISC machines");
1055 MODULE_LICENSE("GPL v2");
1056
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