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Merge remote-tracking branch 'regulator/topic/tps65910' into regulator-next
[deliverable/linux.git] / drivers / video / console / sticore.c
1 /*
2 * linux/drivers/video/console/sticore.c -
3 * core code for console driver using HP's STI firmware
4 *
5 * Copyright (C) 2000 Philipp Rumpf <prumpf@tux.org>
6 * Copyright (C) 2001-2003 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
35 static struct sti_struct *default_sti __read_mostly;
36
37 /* number of STI ROMS found and their ptrs to each struct */
38 static int num_sti_roms __read_mostly;
39 static struct sti_struct *sti_roms[MAX_STI_ROMS] __read_mostly;
40
41
42 /* The colour indices used by STI are
43 * 0 - Black
44 * 1 - White
45 * 2 - Red
46 * 3 - Yellow/Brown
47 * 4 - Green
48 * 5 - Cyan
49 * 6 - Blue
50 * 7 - Magenta
51 *
52 * So we have the same colours as VGA (basically one bit each for R, G, B),
53 * but have to translate them, anyway. */
54
55 static const u8 col_trans[8] = {
56 0, 6, 4, 5,
57 2, 7, 3, 1
58 };
59
60 #define c_fg(sti, c) col_trans[((c>> 8) & 7)]
61 #define c_bg(sti, c) col_trans[((c>>11) & 7)]
62 #define c_index(sti, c) ((c) & 0xff)
63
64 static const struct sti_init_flags default_init_flags = {
65 .wait = STI_WAIT,
66 .reset = 1,
67 .text = 1,
68 .nontext = 1,
69 .no_chg_bet = 1,
70 .no_chg_bei = 1,
71 .init_cmap_tx = 1,
72 };
73
74 static int sti_init_graph(struct sti_struct *sti)
75 {
76 struct sti_init_inptr_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
101 static const struct sti_conf_flags default_conf_flags = {
102 .wait = STI_WAIT,
103 };
104
105 static 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
121 static const struct sti_font_flags default_font_flags = {
122 .wait = STI_WAIT,
123 .non_text = 0,
124 };
125
126 void
127 sti_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
149 static const struct sti_blkmv_flags clear_blkmv_flags = {
150 .wait = STI_WAIT,
151 .color = 1,
152 .clear = 1,
153 };
154
155 void
156 sti_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
181 void
182 sti_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
207 static const struct sti_blkmv_flags default_blkmv_flags = {
208 .wait = STI_WAIT,
209 };
210
211 void
212 sti_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
236 static void sti_flush(unsigned long start, unsigned long end)
237 {
238 flush_icache_range(start, end);
239 }
240
241 static void 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 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 *font_name[MAX_STI_ROMS] = { "VGA8x16", };
288 static int font_index[MAX_STI_ROMS],
289 font_height[MAX_STI_ROMS],
290 font_width[MAX_STI_ROMS];
291 #ifndef MODULE
292 static int 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 sti_dump_globcfg(struct sti_glob_cfg *glob_cfg,
346 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 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 sti_init_glob_cfg(struct sti_struct *sti, unsigned long rom_address,
399 unsigned long hpa)
400 {
401 struct sti_glob_cfg *glob_cfg;
402 struct sti_glob_cfg_ext *glob_cfg_ext;
403 void *save_addr;
404 void *sti_mem_addr;
405 const int save_addr_size = 1024; /* XXX */
406 int i;
407
408 if (!sti->sti_mem_request)
409 sti->sti_mem_request = 256; /* STI default */
410
411 glob_cfg = kzalloc(sizeof(*sti->glob_cfg), GFP_KERNEL);
412 glob_cfg_ext = kzalloc(sizeof(*glob_cfg_ext), GFP_KERNEL);
413 save_addr = kzalloc(save_addr_size, GFP_KERNEL);
414 sti_mem_addr = kzalloc(sti->sti_mem_request, GFP_KERNEL);
415
416 if (!(glob_cfg && glob_cfg_ext && save_addr && sti_mem_addr)) {
417 kfree(glob_cfg);
418 kfree(glob_cfg_ext);
419 kfree(save_addr);
420 kfree(sti_mem_addr);
421 return -ENOMEM;
422 }
423
424 glob_cfg->ext_ptr = STI_PTR(glob_cfg_ext);
425 glob_cfg->save_addr = STI_PTR(save_addr);
426 for (i=0; i<8; i++) {
427 unsigned long newhpa, len;
428
429 if (sti->pd) {
430 unsigned char offs = sti->rm_entry[i];
431
432 if (offs == 0)
433 continue;
434 if (offs != PCI_ROM_ADDRESS &&
435 (offs < PCI_BASE_ADDRESS_0 ||
436 offs > PCI_BASE_ADDRESS_5)) {
437 printk (KERN_WARNING
438 "STI pci region mapping for region %d (%02x) can't be mapped\n",
439 i,sti->rm_entry[i]);
440 continue;
441 }
442 newhpa = pci_resource_start (sti->pd, (offs - PCI_BASE_ADDRESS_0) / 4);
443 } else
444 newhpa = (i == 0) ? rom_address : hpa;
445
446 sti->regions_phys[i] =
447 REGION_OFFSET_TO_PHYS(sti->regions[i], newhpa);
448
449 len = sti->regions[i].region_desc.length * 4096;
450 if (len)
451 glob_cfg->region_ptrs[i] = sti->regions_phys[i];
452
453 DPRINTK(("region #%d: phys %08lx, region_ptr %08x, len=%lukB, "
454 "btlb=%d, sysonly=%d, cache=%d, last=%d\n",
455 i, sti->regions_phys[i], glob_cfg->region_ptrs[i],
456 len/1024,
457 sti->regions[i].region_desc.btlb,
458 sti->regions[i].region_desc.sys_only,
459 sti->regions[i].region_desc.cache,
460 sti->regions[i].region_desc.last));
461
462 /* last entry reached ? */
463 if (sti->regions[i].region_desc.last)
464 break;
465 }
466
467 if (++i<8 && sti->regions[i].region)
468 printk(KERN_WARNING "%s: *future ptr (0x%8x) not yet supported !\n",
469 __FILE__, sti->regions[i].region);
470
471 glob_cfg_ext->sti_mem_addr = STI_PTR(sti_mem_addr);
472
473 sti->glob_cfg = glob_cfg;
474
475 return 0;
476 }
477
478 #ifdef CONFIG_FB
479 static struct sti_cooked_font *
480 sti_select_fbfont(struct sti_cooked_rom *cooked_rom, const char *fbfont_name)
481 {
482 const struct font_desc *fbfont;
483 unsigned int size, bpc;
484 void *dest;
485 struct sti_rom_font *nf;
486 struct sti_cooked_font *cooked_font;
487
488 if (!fbfont_name || !strlen(fbfont_name))
489 return NULL;
490 fbfont = find_font(fbfont_name);
491 if (!fbfont)
492 fbfont = get_default_font(1024,768, ~(u32)0, ~(u32)0);
493 if (!fbfont)
494 return NULL;
495
496 DPRINTK((KERN_DEBUG "selected %dx%d fb-font %s\n",
497 fbfont->width, fbfont->height, fbfont->name));
498
499 bpc = ((fbfont->width+7)/8) * fbfont->height;
500 size = bpc * 256;
501 size += sizeof(struct sti_rom_font);
502
503 nf = kzalloc(size, GFP_KERNEL);
504 if (!nf)
505 return NULL;
506
507 nf->first_char = 0;
508 nf->last_char = 255;
509 nf->width = fbfont->width;
510 nf->height = fbfont->height;
511 nf->font_type = STI_FONT_HPROMAN8;
512 nf->bytes_per_char = bpc;
513 nf->next_font = 0;
514 nf->underline_height = 1;
515 nf->underline_pos = fbfont->height - nf->underline_height;
516
517 dest = nf;
518 dest += sizeof(struct sti_rom_font);
519 memcpy(dest, fbfont->data, bpc*256);
520
521 cooked_font = kzalloc(sizeof(*cooked_font), GFP_KERNEL);
522 if (!cooked_font) {
523 kfree(nf);
524 return NULL;
525 }
526
527 cooked_font->raw = nf;
528 cooked_font->next_font = NULL;
529
530 cooked_rom->font_start = cooked_font;
531
532 return cooked_font;
533 }
534 #else
535 static struct sti_cooked_font *
536 sti_select_fbfont(struct sti_cooked_rom *cooked_rom, const char *fbfont_name)
537 {
538 return NULL;
539 }
540 #endif
541
542 static struct sti_cooked_font *sti_select_font(struct sti_cooked_rom *rom,
543 int (*search_font_fnc)(struct sti_cooked_rom *, int, int))
544 {
545 struct sti_cooked_font *font;
546 int i;
547 int index = num_sti_roms;
548
549 /* check for framebuffer-font first */
550 if ((font = sti_select_fbfont(rom, font_name[index])))
551 return font;
552
553 if (font_width[index] && font_height[index])
554 font_index[index] = search_font_fnc(rom,
555 font_height[index], font_width[index]);
556
557 for (font = rom->font_start, i = font_index[index];
558 font && (i > 0);
559 font = font->next_font, i--);
560
561 if (font)
562 return font;
563 else
564 return rom->font_start;
565 }
566
567
568 static void sti_dump_rom(struct sti_rom *rom)
569 {
570 printk(KERN_INFO " id %04x-%04x, conforms to spec rev. %d.%02x\n",
571 rom->graphics_id[0],
572 rom->graphics_id[1],
573 rom->revno[0] >> 4,
574 rom->revno[0] & 0x0f);
575 DPRINTK((" supports %d monitors\n", rom->num_mons));
576 DPRINTK((" font start %08x\n", rom->font_start));
577 DPRINTK((" region list %08x\n", rom->region_list));
578 DPRINTK((" init_graph %08x\n", rom->init_graph));
579 DPRINTK((" bus support %02x\n", rom->bus_support));
580 DPRINTK((" ext bus support %02x\n", rom->ext_bus_support));
581 DPRINTK((" alternate code type %d\n", rom->alt_code_type));
582 }
583
584
585 static int sti_cook_fonts(struct sti_cooked_rom *cooked_rom,
586 struct sti_rom *raw_rom)
587 {
588 struct sti_rom_font *raw_font, *font_start;
589 struct sti_cooked_font *cooked_font;
590
591 cooked_font = kzalloc(sizeof(*cooked_font), GFP_KERNEL);
592 if (!cooked_font)
593 return 0;
594
595 cooked_rom->font_start = cooked_font;
596
597 raw_font = ((void *)raw_rom) + (raw_rom->font_start);
598
599 font_start = raw_font;
600 cooked_font->raw = raw_font;
601
602 while (raw_font->next_font) {
603 raw_font = ((void *)font_start) + (raw_font->next_font);
604
605 cooked_font->next_font = kzalloc(sizeof(*cooked_font), GFP_KERNEL);
606 if (!cooked_font->next_font)
607 return 1;
608
609 cooked_font = cooked_font->next_font;
610
611 cooked_font->raw = raw_font;
612 }
613
614 cooked_font->next_font = NULL;
615 return 1;
616 }
617
618
619 static int sti_search_font(struct sti_cooked_rom *rom, int height, int width)
620 {
621 struct sti_cooked_font *font;
622 int i = 0;
623
624 for (font = rom->font_start; font; font = font->next_font, i++) {
625 if ((font->raw->width == width) &&
626 (font->raw->height == height))
627 return i;
628 }
629 return 0;
630 }
631
632 #define BMODE_RELOCATE(offset) offset = (offset) / 4;
633 #define BMODE_LAST_ADDR_OFFS 0x50
634
635 static void *sti_bmode_font_raw(struct sti_cooked_font *f)
636 {
637 unsigned char *n, *p, *q;
638 int size = f->raw->bytes_per_char*256+sizeof(struct sti_rom_font);
639
640 n = kzalloc (4*size, GFP_KERNEL);
641 if (!n)
642 return NULL;
643 p = n + 3;
644 q = (unsigned char *)f->raw;
645 while (size--) {
646 *p = *q++;
647 p+=4;
648 }
649 return n + 3;
650 }
651
652 static void sti_bmode_rom_copy(unsigned long base, unsigned long count,
653 void *dest)
654 {
655 unsigned long dest_start = (unsigned long) dest;
656
657 while (count) {
658 count--;
659 *(u8 *)dest = gsc_readl(base);
660 base += 4;
661 dest++;
662 }
663
664 sti_flush(dest_start, (unsigned long)dest);
665 }
666
667 static struct sti_rom *sti_get_bmode_rom (unsigned long address)
668 {
669 struct sti_rom *raw;
670 u32 size;
671 struct sti_rom_font *raw_font, *font_start;
672
673 sti_bmode_rom_copy(address + BMODE_LAST_ADDR_OFFS, sizeof(size), &size);
674
675 size = (size+3) / 4;
676 raw = kmalloc(size, GFP_KERNEL);
677 if (raw) {
678 sti_bmode_rom_copy(address, size, raw);
679 memmove (&raw->res004, &raw->type[0], 0x3c);
680 raw->type[3] = raw->res004;
681
682 BMODE_RELOCATE (raw->region_list);
683 BMODE_RELOCATE (raw->font_start);
684
685 BMODE_RELOCATE (raw->init_graph);
686 BMODE_RELOCATE (raw->state_mgmt);
687 BMODE_RELOCATE (raw->font_unpmv);
688 BMODE_RELOCATE (raw->block_move);
689 BMODE_RELOCATE (raw->inq_conf);
690
691 raw_font = ((void *)raw) + raw->font_start;
692 font_start = raw_font;
693
694 while (raw_font->next_font) {
695 BMODE_RELOCATE (raw_font->next_font);
696 raw_font = ((void *)font_start) + raw_font->next_font;
697 }
698 }
699 return raw;
700 }
701
702 static struct sti_rom *sti_get_wmode_rom(unsigned long address)
703 {
704 struct sti_rom *raw;
705 unsigned long size;
706
707 /* read the ROM size directly from the struct in ROM */
708 size = gsc_readl(address + offsetof(struct sti_rom,last_addr));
709
710 raw = kmalloc(size, GFP_KERNEL);
711 if (raw)
712 sti_rom_copy(address, size, raw);
713
714 return raw;
715 }
716
717 static int sti_read_rom(int wordmode, struct sti_struct *sti,
718 unsigned long address)
719 {
720 struct sti_cooked_rom *cooked;
721 struct sti_rom *raw = NULL;
722 unsigned long revno;
723
724 cooked = kmalloc(sizeof *cooked, GFP_KERNEL);
725 if (!cooked)
726 goto out_err;
727
728 if (wordmode)
729 raw = sti_get_wmode_rom (address);
730 else
731 raw = sti_get_bmode_rom (address);
732
733 if (!raw)
734 goto out_err;
735
736 if (!sti_cook_fonts(cooked, raw)) {
737 printk(KERN_ERR "No font found for STI at %08lx\n", address);
738 goto out_err;
739 }
740
741 if (raw->region_list)
742 memcpy(sti->regions, ((void *)raw)+raw->region_list, sizeof(sti->regions));
743
744 address = (unsigned long) STI_PTR(raw);
745
746 sti->font_unpmv = address + (raw->font_unpmv & 0x03ffffff);
747 sti->block_move = address + (raw->block_move & 0x03ffffff);
748 sti->init_graph = address + (raw->init_graph & 0x03ffffff);
749 sti->inq_conf = address + (raw->inq_conf & 0x03ffffff);
750
751 sti->rom = cooked;
752 sti->rom->raw = raw;
753
754 sti->font = sti_select_font(sti->rom, sti_search_font);
755 sti->font_width = sti->font->raw->width;
756 sti->font_height = sti->font->raw->height;
757 if (!wordmode)
758 sti->font->raw = sti_bmode_font_raw(sti->font);
759
760 sti->sti_mem_request = raw->sti_mem_req;
761 sti->graphics_id[0] = raw->graphics_id[0];
762 sti->graphics_id[1] = raw->graphics_id[1];
763
764 sti_dump_rom(raw);
765
766 /* check if the ROM routines in this card are compatible */
767 if (wordmode || sti->graphics_id[1] != 0x09A02587)
768 goto ok;
769
770 revno = (raw->revno[0] << 8) | raw->revno[1];
771
772 switch (sti->graphics_id[0]) {
773 case S9000_ID_HCRX:
774 /* HyperA or HyperB ? */
775 if (revno == 0x8408 || revno == 0x840b)
776 goto msg_not_supported;
777 break;
778 case CRT_ID_THUNDER:
779 if (revno == 0x8509)
780 goto msg_not_supported;
781 break;
782 case CRT_ID_THUNDER2:
783 if (revno == 0x850c)
784 goto msg_not_supported;
785 }
786 ok:
787 return 1;
788
789 msg_not_supported:
790 printk(KERN_ERR "Sorry, this GSC/STI card is not yet supported.\n");
791 printk(KERN_ERR "Please see http://parisc-linux.org/faq/"
792 "graphics-howto.html for more info.\n");
793 /* fall through */
794 out_err:
795 kfree(raw);
796 kfree(cooked);
797 return 0;
798 }
799
800 static struct sti_struct *sti_try_rom_generic(unsigned long address,
801 unsigned long hpa,
802 struct pci_dev *pd)
803 {
804 struct sti_struct *sti;
805 int ok;
806 u32 sig;
807
808 if (num_sti_roms >= MAX_STI_ROMS) {
809 printk(KERN_WARNING "maximum number of STI ROMS reached !\n");
810 return NULL;
811 }
812
813 sti = kzalloc(sizeof(*sti), GFP_KERNEL);
814 if (!sti) {
815 printk(KERN_ERR "Not enough memory !\n");
816 return NULL;
817 }
818
819 spin_lock_init(&sti->lock);
820
821 test_rom:
822 /* if we can't read the ROM, bail out early. Not being able
823 * to read the hpa is okay, for romless sti */
824 if (pdc_add_valid(address))
825 goto out_err;
826
827 sig = gsc_readl(address);
828
829 /* check for a PCI ROM structure */
830 if ((le32_to_cpu(sig)==0xaa55)) {
831 unsigned int i, rm_offset;
832 u32 *rm;
833 i = gsc_readl(address+0x04);
834 if (i != 1) {
835 /* The ROM could have multiple architecture
836 * dependent images (e.g. i386, parisc,...) */
837 printk(KERN_WARNING
838 "PCI ROM is not a STI ROM type image (0x%8x)\n", i);
839 goto out_err;
840 }
841
842 sti->pd = pd;
843
844 i = gsc_readl(address+0x0c);
845 DPRINTK(("PCI ROM size (from header) = %d kB\n",
846 le16_to_cpu(i>>16)*512/1024));
847 rm_offset = le16_to_cpu(i & 0xffff);
848 if (rm_offset) {
849 /* read 16 bytes from the pci region mapper array */
850 rm = (u32*) &sti->rm_entry;
851 *rm++ = gsc_readl(address+rm_offset+0x00);
852 *rm++ = gsc_readl(address+rm_offset+0x04);
853 *rm++ = gsc_readl(address+rm_offset+0x08);
854 *rm++ = gsc_readl(address+rm_offset+0x0c);
855 DPRINTK(("PCI region Mapper offset = %08x: ",
856 rm_offset));
857 for (i=0; i<16; i++)
858 DPRINTK(("%02x ", sti->rm_entry[i]));
859 DPRINTK(("\n"));
860 }
861
862 address += le32_to_cpu(gsc_readl(address+8));
863 DPRINTK(("sig %04x, PCI STI ROM at %08lx\n", sig, address));
864 goto test_rom;
865 }
866
867 ok = 0;
868
869 if ((sig & 0xff) == 0x01) {
870 DPRINTK((" byte mode ROM at %08lx, hpa at %08lx\n",
871 address, hpa));
872 ok = sti_read_rom(0, sti, address);
873 }
874
875 if ((sig & 0xffff) == 0x0303) {
876 DPRINTK((" word mode ROM at %08lx, hpa at %08lx\n",
877 address, hpa));
878 ok = sti_read_rom(1, sti, address);
879 }
880
881 if (!ok)
882 goto out_err;
883
884 if (sti_init_glob_cfg(sti, address, hpa))
885 goto out_err; /* not enough memory */
886
887 /* disable STI PCI ROM. ROM and card RAM overlap and
888 * leaving it enabled would force HPMCs
889 */
890 if (sti->pd) {
891 unsigned long rom_base;
892 rom_base = pci_resource_start(sti->pd, PCI_ROM_RESOURCE);
893 pci_write_config_dword(sti->pd, PCI_ROM_ADDRESS, rom_base & ~PCI_ROM_ADDRESS_ENABLE);
894 DPRINTK((KERN_DEBUG "STI PCI ROM disabled\n"));
895 }
896
897 if (sti_init_graph(sti))
898 goto out_err;
899
900 sti_inq_conf(sti);
901 sti_dump_globcfg(sti->glob_cfg, sti->sti_mem_request);
902 sti_dump_outptr(sti);
903
904 printk(KERN_INFO " graphics card name: %s\n", sti->outptr.dev_name );
905
906 sti_roms[num_sti_roms] = sti;
907 num_sti_roms++;
908
909 return sti;
910
911 out_err:
912 kfree(sti);
913 return NULL;
914 }
915
916 static void sticore_check_for_default_sti(struct sti_struct *sti, char *path)
917 {
918 if (strcmp (path, default_sti_path) == 0)
919 default_sti = sti;
920 }
921
922 /*
923 * on newer systems PDC gives the address of the ROM
924 * in the additional address field addr[1] while on
925 * older Systems the PDC stores it in page0->proc_sti
926 */
927 static int sticore_pa_init(struct parisc_device *dev)
928 {
929 char pa_path[21];
930 struct sti_struct *sti = NULL;
931 int hpa = dev->hpa.start;
932
933 if (dev->num_addrs && dev->addr[0])
934 sti = sti_try_rom_generic(dev->addr[0], hpa, NULL);
935 if (!sti)
936 sti = sti_try_rom_generic(hpa, hpa, NULL);
937 if (!sti)
938 sti = sti_try_rom_generic(PAGE0->proc_sti, hpa, NULL);
939 if (!sti)
940 return 1;
941
942 print_pa_hwpath(dev, pa_path);
943 sticore_check_for_default_sti(sti, pa_path);
944 return 0;
945 }
946
947
948 static int sticore_pci_init(struct pci_dev *pd, const struct pci_device_id *ent)
949 {
950 #ifdef CONFIG_PCI
951 unsigned long fb_base, rom_base;
952 unsigned int fb_len, rom_len;
953 int err;
954 struct sti_struct *sti;
955
956 err = pci_enable_device(pd);
957 if (err < 0) {
958 dev_err(&pd->dev, "Cannot enable PCI device\n");
959 return err;
960 }
961
962 fb_base = pci_resource_start(pd, 0);
963 fb_len = pci_resource_len(pd, 0);
964 rom_base = pci_resource_start(pd, PCI_ROM_RESOURCE);
965 rom_len = pci_resource_len(pd, PCI_ROM_RESOURCE);
966 if (rom_base) {
967 pci_write_config_dword(pd, PCI_ROM_ADDRESS, rom_base | PCI_ROM_ADDRESS_ENABLE);
968 DPRINTK((KERN_DEBUG "STI PCI ROM enabled at 0x%08lx\n", rom_base));
969 }
970
971 printk(KERN_INFO "STI PCI graphic ROM found at %08lx (%u kB), fb at %08lx (%u MB)\n",
972 rom_base, rom_len/1024, fb_base, fb_len/1024/1024);
973
974 DPRINTK((KERN_DEBUG "Trying PCI STI ROM at %08lx, PCI hpa at %08lx\n",
975 rom_base, fb_base));
976
977 sti = sti_try_rom_generic(rom_base, fb_base, pd);
978 if (sti) {
979 char pa_path[30];
980 print_pci_hwpath(pd, pa_path);
981 sticore_check_for_default_sti(sti, pa_path);
982 }
983
984 if (!sti) {
985 printk(KERN_WARNING "Unable to handle STI device '%s'\n",
986 pci_name(pd));
987 return -ENODEV;
988 }
989 #endif /* CONFIG_PCI */
990
991 return 0;
992 }
993
994
995 static void sticore_pci_remove(struct pci_dev *pd)
996 {
997 BUG();
998 }
999
1000
1001 static struct pci_device_id sti_pci_tbl[] = {
1002 { PCI_DEVICE(PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_VISUALIZE_EG) },
1003 { PCI_DEVICE(PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_VISUALIZE_FX6) },
1004 { PCI_DEVICE(PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_VISUALIZE_FX4) },
1005 { PCI_DEVICE(PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_VISUALIZE_FX2) },
1006 { PCI_DEVICE(PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_VISUALIZE_FXE) },
1007 { 0, } /* terminate list */
1008 };
1009 MODULE_DEVICE_TABLE(pci, sti_pci_tbl);
1010
1011 static struct pci_driver pci_sti_driver = {
1012 .name = "sti",
1013 .id_table = sti_pci_tbl,
1014 .probe = sticore_pci_init,
1015 .remove = sticore_pci_remove,
1016 };
1017
1018 static struct parisc_device_id sti_pa_tbl[] = {
1019 { HPHW_FIO, HVERSION_REV_ANY_ID, HVERSION_ANY_ID, 0x00077 },
1020 { HPHW_FIO, HVERSION_REV_ANY_ID, HVERSION_ANY_ID, 0x00085 },
1021 { 0, }
1022 };
1023
1024 static struct parisc_driver pa_sti_driver = {
1025 .name = "sti",
1026 .id_table = sti_pa_tbl,
1027 .probe = sticore_pa_init,
1028 };
1029
1030
1031 /*
1032 * sti_init_roms() - detects all STI ROMs and stores them in sti_roms[]
1033 */
1034
1035 static int sticore_initialized __read_mostly;
1036
1037 static void sti_init_roms(void)
1038 {
1039 if (sticore_initialized)
1040 return;
1041
1042 sticore_initialized = 1;
1043
1044 printk(KERN_INFO "STI GSC/PCI core graphics driver "
1045 STI_DRIVERVERSION "\n");
1046
1047 /* Register drivers for native & PCI cards */
1048 register_parisc_driver(&pa_sti_driver);
1049 WARN_ON(pci_register_driver(&pci_sti_driver));
1050
1051 /* if we didn't find the given default sti, take the first one */
1052 if (!default_sti)
1053 default_sti = sti_roms[0];
1054
1055 }
1056
1057 /*
1058 * index = 0 gives default sti
1059 * index > 0 gives other stis in detection order
1060 */
1061 struct sti_struct * sti_get_rom(unsigned int index)
1062 {
1063 if (!sticore_initialized)
1064 sti_init_roms();
1065
1066 if (index == 0)
1067 return default_sti;
1068
1069 if (index > num_sti_roms)
1070 return NULL;
1071
1072 return sti_roms[index-1];
1073 }
1074 EXPORT_SYMBOL(sti_get_rom);
1075
1076 MODULE_AUTHOR("Philipp Rumpf, Helge Deller, Thomas Bogendoerfer");
1077 MODULE_DESCRIPTION("Core STI driver for HP's NGLE series graphics cards in HP PARISC machines");
1078 MODULE_LICENSE("GPL v2");
1079
Linux kernel - Deliverables
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