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Merge tag 'trace-v5.11-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt...
[linux/fpc-iii.git] / drivers / video / console / sticore.c
blobf869b723494f1c276ded7fb643f8da3ce1b6e97c
1 // SPDX-License-Identifier: GPL-2.0-only
2 /*
3 * linux/drivers/video/console/sticore.c -
4 * core code for console driver using HP's STI firmware
5 *
6 * Copyright (C) 2000 Philipp Rumpf <prumpf@tux.org>
7 * Copyright (C) 2001-2020 Helge Deller <deller@gmx.de>
8 * Copyright (C) 2001-2002 Thomas Bogendoerfer <tsbogend@alpha.franken.de>
9 *
10 * TODO:
11 * - call STI in virtual mode rather than in real mode
12 * - screen blanking with state_mgmt() in text mode STI ?
13 * - try to make it work on m68k hp workstations ;)
14 *
15 */
16
17 #define pr_fmt(fmt) "%s: " fmt, KBUILD_MODNAME
18
19 #include <linux/module.h>
20 #include <linux/types.h>
21 #include <linux/kernel.h>
22 #include <linux/slab.h>
23 #include <linux/init.h>
24 #include <linux/pci.h>
25 #include <linux/font.h>
26
27 #include <asm/hardware.h>
28 #include <asm/page.h>
29 #include <asm/parisc-device.h>
30 #include <asm/pdc.h>
31 #include <asm/cacheflush.h>
32 #include <asm/grfioctl.h>
33
34 #include "../fbdev/sticore.h"
35
36 #define STI_DRIVERVERSION "Version 0.9b"
37
38 static struct sti_struct *default_sti __read_mostly;
39
40 /* number of STI ROMS found and their ptrs to each struct */
41 static int num_sti_roms __read_mostly;
42 static struct sti_struct *sti_roms[MAX_STI_ROMS] __read_mostly;
43
44
45 /* The colour indices used by STI are
46 * 0 - Black
47 * 1 - White
48 * 2 - Red
49 * 3 - Yellow/Brown
50 * 4 - Green
51 * 5 - Cyan
52 * 6 - Blue
53 * 7 - Magenta
54 *
55 * So we have the same colours as VGA (basically one bit each for R, G, B),
56 * but have to translate them, anyway. */
57
58 static const u8 col_trans[8] = {
59 0, 6, 4, 5,
60 2, 7, 3, 1
61 };
62
63 #define c_fg(sti, c) col_trans[((c>> 8) & 7)]
64 #define c_bg(sti, c) col_trans[((c>>11) & 7)]
65 #define c_index(sti, c) ((c) & 0xff)
66
67 static const struct sti_init_flags default_init_flags = {
68 .wait = STI_WAIT,
69 .reset = 1,
70 .text = 1,
71 .nontext = 1,
72 .no_chg_bet = 1,
73 .no_chg_bei = 1,
74 .init_cmap_tx = 1,
75 };
76
77 static int sti_init_graph(struct sti_struct *sti)
78 {
79 struct sti_init_inptr *inptr = &sti->sti_data->init_inptr;
80 struct sti_init_inptr_ext *inptr_ext = &sti->sti_data->init_inptr_ext;
81 struct sti_init_outptr *outptr = &sti->sti_data->init_outptr;
82 unsigned long flags;
83 int ret, err;
84
85 spin_lock_irqsave(&sti->lock, flags);
86
87 memset(inptr, 0, sizeof(*inptr));
88 inptr->text_planes = 3; /* # of text planes (max 3 for STI) */
89 memset(inptr_ext, 0, sizeof(*inptr_ext));
90 inptr->ext_ptr = STI_PTR(inptr_ext);
91 outptr->errno = 0;
92
93 ret = sti_call(sti, sti->init_graph, &default_init_flags, inptr,
94 outptr, sti->glob_cfg);
95
96 if (ret >= 0)
97 sti->text_planes = outptr->text_planes;
98 err = outptr->errno;
99
100 spin_unlock_irqrestore(&sti->lock, flags);
101
102 if (ret < 0) {
103 pr_err("STI init_graph failed (ret %d, errno %d)\n", ret, err);
104 return -1;
105 }
106
107 return 0;
108 }
109
110 static const struct sti_conf_flags default_conf_flags = {
111 .wait = STI_WAIT,
112 };
113
114 static void sti_inq_conf(struct sti_struct *sti)
115 {
116 struct sti_conf_inptr *inptr = &sti->sti_data->inq_inptr;
117 struct sti_conf_outptr *outptr = &sti->sti_data->inq_outptr;
118 unsigned long flags;
119 s32 ret;
120
121 outptr->ext_ptr = STI_PTR(&sti->sti_data->inq_outptr_ext);
122
123 do {
124 spin_lock_irqsave(&sti->lock, flags);
125 memset(inptr, 0, sizeof(*inptr));
126 ret = sti_call(sti, sti->inq_conf, &default_conf_flags,
127 inptr, outptr, sti->glob_cfg);
128 spin_unlock_irqrestore(&sti->lock, flags);
129 } while (ret == 1);
130 }
131
132 static const struct sti_font_flags default_font_flags = {
133 .wait = STI_WAIT,
134 .non_text = 0,
135 };
136
137 void
138 sti_putc(struct sti_struct *sti, int c, int y, int x,
139 struct sti_cooked_font *font)
140 {
141 struct sti_font_inptr *inptr = &sti->sti_data->font_inptr;
142 struct sti_font_inptr inptr_default = {
143 .font_start_addr = STI_PTR(font->raw),
144 .index = c_index(sti, c),
145 .fg_color = c_fg(sti, c),
146 .bg_color = c_bg(sti, c),
147 .dest_x = x * font->width,
148 .dest_y = y * font->height,
149 };
150 struct sti_font_outptr *outptr = &sti->sti_data->font_outptr;
151 s32 ret;
152 unsigned long flags;
153
154 do {
155 spin_lock_irqsave(&sti->lock, flags);
156 *inptr = inptr_default;
157 ret = sti_call(sti, sti->font_unpmv, &default_font_flags,
158 inptr, outptr, sti->glob_cfg);
159 spin_unlock_irqrestore(&sti->lock, flags);
160 } while (ret == 1);
161 }
162
163 static const struct sti_blkmv_flags clear_blkmv_flags = {
164 .wait = STI_WAIT,
165 .color = 1,
166 .clear = 1,
167 };
168
169 void
170 sti_set(struct sti_struct *sti, int src_y, int src_x,
171 int height, int width, u8 color)
172 {
173 struct sti_blkmv_inptr *inptr = &sti->sti_data->blkmv_inptr;
174 struct sti_blkmv_inptr inptr_default = {
175 .fg_color = color,
176 .bg_color = color,
177 .src_x = src_x,
178 .src_y = src_y,
179 .dest_x = src_x,
180 .dest_y = src_y,
181 .width = width,
182 .height = height,
183 };
184 struct sti_blkmv_outptr *outptr = &sti->sti_data->blkmv_outptr;
185 s32 ret;
186 unsigned long flags;
187
188 do {
189 spin_lock_irqsave(&sti->lock, flags);
190 *inptr = inptr_default;
191 ret = sti_call(sti, sti->block_move, &clear_blkmv_flags,
192 inptr, outptr, sti->glob_cfg);
193 spin_unlock_irqrestore(&sti->lock, flags);
194 } while (ret == 1);
195 }
196
197 void
198 sti_clear(struct sti_struct *sti, int src_y, int src_x,
199 int height, int width, int c, struct sti_cooked_font *font)
200 {
201 struct sti_blkmv_inptr *inptr = &sti->sti_data->blkmv_inptr;
202 struct sti_blkmv_inptr inptr_default = {
203 .fg_color = c_fg(sti, c),
204 .bg_color = c_bg(sti, c),
205 .src_x = src_x * font->width,
206 .src_y = src_y * font->height,
207 .dest_x = src_x * font->width,
208 .dest_y = src_y * font->height,
209 .width = width * font->width,
210 .height = height * font->height,
211 };
212 struct sti_blkmv_outptr *outptr = &sti->sti_data->blkmv_outptr;
213 s32 ret;
214 unsigned long flags;
215
216 do {
217 spin_lock_irqsave(&sti->lock, flags);
218 *inptr = inptr_default;
219 ret = sti_call(sti, sti->block_move, &clear_blkmv_flags,
220 inptr, outptr, sti->glob_cfg);
221 spin_unlock_irqrestore(&sti->lock, flags);
222 } while (ret == 1);
223 }
224
225 static const struct sti_blkmv_flags default_blkmv_flags = {
226 .wait = STI_WAIT,
227 };
228
229 void
230 sti_bmove(struct sti_struct *sti, int src_y, int src_x,
231 int dst_y, int dst_x, int height, int width,
232 struct sti_cooked_font *font)
233 {
234 struct sti_blkmv_inptr *inptr = &sti->sti_data->blkmv_inptr;
235 struct sti_blkmv_inptr inptr_default = {
236 .src_x = src_x * font->width,
237 .src_y = src_y * font->height,
238 .dest_x = dst_x * font->width,
239 .dest_y = dst_y * font->height,
240 .width = width * font->width,
241 .height = height * font->height,
242 };
243 struct sti_blkmv_outptr *outptr = &sti->sti_data->blkmv_outptr;
244 s32 ret;
245 unsigned long flags;
246
247 do {
248 spin_lock_irqsave(&sti->lock, flags);
249 *inptr = inptr_default;
250 ret = sti_call(sti, sti->block_move, &default_blkmv_flags,
251 inptr, outptr, sti->glob_cfg);
252 spin_unlock_irqrestore(&sti->lock, flags);
253 } while (ret == 1);
254 }
255
256
257 static void sti_flush(unsigned long start, unsigned long end)
258 {
259 flush_icache_range(start, end);
260 }
261
262 static void sti_rom_copy(unsigned long base, unsigned long count, void *dest)
263 {
264 unsigned long dest_start = (unsigned long) dest;
265
266 /* this still needs to be revisited (see arch/parisc/mm/init.c:246) ! */
267 while (count >= 4) {
268 count -= 4;
269 *(u32 *)dest = gsc_readl(base);
270 base += 4;
271 dest += 4;
272 }
273 while (count) {
274 count--;
275 *(u8 *)dest = gsc_readb(base);
276 base++;
277 dest++;
278 }
279
280 sti_flush(dest_start, (unsigned long)dest);
281 }
282
283
284
285
286 static char default_sti_path[21] __read_mostly;
287
288 #ifndef MODULE
289 static int __init sti_setup(char *str)
290 {
291 if (str)
292 strlcpy (default_sti_path, str, sizeof (default_sti_path));
293
294 return 1;
295 }
296
297 /* Assuming the machine has multiple STI consoles (=graphic cards) which
298 * all get detected by sticon, the user may define with the linux kernel
299 * parameter sti=<x> which of them will be the initial boot-console.
300 * <x> is a number between 0 and MAX_STI_ROMS, with 0 as the default
301 * STI screen.
302 */
303 __setup("sti=", sti_setup);
304 #endif
305
306
307
308 static char *font_name;
309 static int font_index,
310 font_height,
311 font_width;
312 #ifndef MODULE
313 static int sti_font_setup(char *str)
314 {
315 /*
316 * The default font can be selected in various ways.
317 * a) sti_font=VGA8x16, sti_font=10x20, sti_font=10*20 selects
318 * an built-in Linux framebuffer font.
319 * b) sti_font=<index>, where index is (1..x) with 1 selecting
320 * the first HP STI ROM built-in font..
321 */
322
323 if (*str >= '0' && *str <= '9') {
324 char *x;
325
326 if ((x = strchr(str, 'x')) || (x = strchr(str, '*'))) {
327 font_height = simple_strtoul(str, NULL, 0);
328 font_width = simple_strtoul(x+1, NULL, 0);
329 } else {
330 font_index = simple_strtoul(str, NULL, 0);
331 }
332 } else {
333 font_name = str; /* fb font name */
334 }
335
336 return 1;
337 }
338
339 /* The optional linux kernel parameter "sti_font" defines which font
340 * should be used by the sticon driver to draw characters to the screen.
341 * Possible values are:
342 * - sti_font=<fb_fontname>:
343 * <fb_fontname> is the name of one of the linux-kernel built-in
344 * framebuffer font names (e.g. VGA8x16, SUN22x18).
345 * This is only available if the fonts have been statically compiled
346 * in with e.g. the CONFIG_FONT_8x16 or CONFIG_FONT_SUN12x22 options.
347 * - sti_font=<number> (<number> = 1,2,3,...)
348 * most STI ROMs have built-in HP specific fonts, which can be selected
349 * by giving the desired number to the sticon driver.
350 * NOTE: This number is machine and STI ROM dependend.
351 * - sti_font=<height>x<width> (e.g. sti_font=16x8)
352 * <height> and <width> gives hints to the height and width of the
353 * font which the user wants. The sticon driver will try to use
354 * a font with this height and width, but if no suitable font is
355 * found, sticon will use the default 8x8 font.
356 */
357 __setup("sti_font=", sti_font_setup);
358 #endif
359
360
361
362 static void sti_dump_globcfg(struct sti_glob_cfg *glob_cfg,
363 unsigned int sti_mem_request)
364 {
365 struct sti_glob_cfg_ext *cfg;
366
367 pr_debug("%d text planes\n"
368 "%4d x %4d screen resolution\n"
369 "%4d x %4d offscreen\n"
370 "%4d x %4d layout\n"
371 "regions at %08x %08x %08x %08x\n"
372 "regions at %08x %08x %08x %08x\n"
373 "reent_lvl %d\n"
374 "save_addr %08x\n",
375 glob_cfg->text_planes,
376 glob_cfg->onscreen_x, glob_cfg->onscreen_y,
377 glob_cfg->offscreen_x, glob_cfg->offscreen_y,
378 glob_cfg->total_x, glob_cfg->total_y,
379 glob_cfg->region_ptrs[0], glob_cfg->region_ptrs[1],
380 glob_cfg->region_ptrs[2], glob_cfg->region_ptrs[3],
381 glob_cfg->region_ptrs[4], glob_cfg->region_ptrs[5],
382 glob_cfg->region_ptrs[6], glob_cfg->region_ptrs[7],
383 glob_cfg->reent_lvl,
384 glob_cfg->save_addr);
385
386 /* dump extended cfg */
387 cfg = PTR_STI((unsigned long)glob_cfg->ext_ptr);
388 pr_debug("monitor %d\n"
389 "in friendly mode: %d\n"
390 "power consumption %d watts\n"
391 "freq ref %d\n"
392 "sti_mem_addr %08x (size=%d bytes)\n",
393 cfg->curr_mon,
394 cfg->friendly_boot,
395 cfg->power,
396 cfg->freq_ref,
397 cfg->sti_mem_addr, sti_mem_request);
398 }
399
400 static void sti_dump_outptr(struct sti_struct *sti)
401 {
402 pr_debug("%d bits per pixel\n"
403 "%d used bits\n"
404 "%d planes\n"
405 "attributes %08x\n",
406 sti->sti_data->inq_outptr.bits_per_pixel,
407 sti->sti_data->inq_outptr.bits_used,
408 sti->sti_data->inq_outptr.planes,
409 sti->sti_data->inq_outptr.attributes);
410 }
411
412 static int sti_init_glob_cfg(struct sti_struct *sti, unsigned long rom_address,
413 unsigned long hpa)
414 {
415 struct sti_glob_cfg *glob_cfg;
416 struct sti_glob_cfg_ext *glob_cfg_ext;
417 void *save_addr;
418 void *sti_mem_addr;
419 int i, size;
420
421 if (sti->sti_mem_request < 256)
422 sti->sti_mem_request = 256; /* STI default */
423
424 size = sizeof(struct sti_all_data) + sti->sti_mem_request - 256;
425
426 sti->sti_data = kzalloc(size, STI_LOWMEM);
427 if (!sti->sti_data)
428 return -ENOMEM;
429
430 glob_cfg = &sti->sti_data->glob_cfg;
431 glob_cfg_ext = &sti->sti_data->glob_cfg_ext;
432 save_addr = &sti->sti_data->save_addr;
433 sti_mem_addr = &sti->sti_data->sti_mem_addr;
434
435 glob_cfg->ext_ptr = STI_PTR(glob_cfg_ext);
436 glob_cfg->save_addr = STI_PTR(save_addr);
437 for (i=0; i<8; i++) {
438 unsigned long newhpa, len;
439
440 if (sti->pd) {
441 unsigned char offs = sti->rm_entry[i];
442
443 if (offs == 0)
444 continue;
445 if (offs != PCI_ROM_ADDRESS &&
446 (offs < PCI_BASE_ADDRESS_0 ||
447 offs > PCI_BASE_ADDRESS_5)) {
448 pr_warn("STI pci region mapping for region %d (%02x) can't be mapped\n",
449 i,sti->rm_entry[i]);
450 continue;
451 }
452 newhpa = pci_resource_start (sti->pd, (offs - PCI_BASE_ADDRESS_0) / 4);
453 } else
454 newhpa = (i == 0) ? rom_address : hpa;
455
456 sti->regions_phys[i] =
457 REGION_OFFSET_TO_PHYS(sti->regions[i], newhpa);
458
459 len = sti->regions[i].region_desc.length * 4096;
460 if (len)
461 glob_cfg->region_ptrs[i] = sti->regions_phys[i];
462
463 pr_debug("region #%d: phys %08lx, region_ptr %08x, len=%lukB, "
464 "btlb=%d, sysonly=%d, cache=%d, last=%d\n",
465 i, sti->regions_phys[i], glob_cfg->region_ptrs[i],
466 len/1024,
467 sti->regions[i].region_desc.btlb,
468 sti->regions[i].region_desc.sys_only,
469 sti->regions[i].region_desc.cache,
470 sti->regions[i].region_desc.last);
471
472 /* last entry reached ? */
473 if (sti->regions[i].region_desc.last)
474 break;
475 }
476
477 if (++i<8 && sti->regions[i].region)
478 pr_warn("future ptr (0x%8x) not yet supported !\n",
479 sti->regions[i].region);
480
481 glob_cfg_ext->sti_mem_addr = STI_PTR(sti_mem_addr);
482
483 sti->glob_cfg = glob_cfg;
484
485 return 0;
486 }
487
488 #ifdef CONFIG_FONT_SUPPORT
489 static struct sti_cooked_font *
490 sti_select_fbfont(struct sti_cooked_rom *cooked_rom, const char *fbfont_name)
491 {
492 const struct font_desc *fbfont = NULL;
493 unsigned int size, bpc;
494 void *dest;
495 struct sti_rom_font *nf;
496 struct sti_cooked_font *cooked_font;
497
498 if (fbfont_name && strlen(fbfont_name))
499 fbfont = find_font(fbfont_name);
500 if (!fbfont)
501 fbfont = get_default_font(1024,768, ~(u32)0, ~(u32)0);
502 if (!fbfont)
503 return NULL;
504
505 pr_info("STI selected %ux%u framebuffer font %s for sticon\n",
506 fbfont->width, fbfont->height, fbfont->name);
507
508 bpc = ((fbfont->width+7)/8) * fbfont->height;
509 size = bpc * fbfont->charcount;
510 size += sizeof(struct sti_rom_font);
511
512 nf = kzalloc(size, STI_LOWMEM);
513 if (!nf)
514 return NULL;
515
516 nf->first_char = 0;
517 nf->last_char = fbfont->charcount - 1;
518 nf->width = fbfont->width;
519 nf->height = fbfont->height;
520 nf->font_type = STI_FONT_HPROMAN8;
521 nf->bytes_per_char = bpc;
522 nf->next_font = 0;
523 nf->underline_height = 1;
524 nf->underline_pos = fbfont->height - nf->underline_height;
525
526 dest = nf;
527 dest += sizeof(struct sti_rom_font);
528 memcpy(dest, fbfont->data, bpc * fbfont->charcount);
529
530 cooked_font = kzalloc(sizeof(*cooked_font), GFP_KERNEL);
531 if (!cooked_font) {
532 kfree(nf);
533 return NULL;
534 }
535
536 cooked_font->raw = nf;
537 cooked_font->raw_ptr = nf;
538 cooked_font->next_font = NULL;
539
540 cooked_rom->font_start = cooked_font;
541
542 return cooked_font;
543 }
544 #else
545 static struct sti_cooked_font *
546 sti_select_fbfont(struct sti_cooked_rom *cooked_rom, const char *fbfont_name)
547 {
548 return NULL;
549 }
550 #endif
551
552 static int sti_search_font(struct sti_cooked_rom *rom, int height, int width)
553 {
554 struct sti_cooked_font *font;
555 int i = 0;
556
557 for (font = rom->font_start; font; font = font->next_font, i++) {
558 if ((font->raw->width == width) &&
559 (font->raw->height == height))
560 return i;
561 }
562 return 0;
563 }
564
565 static struct sti_cooked_font *sti_select_font(struct sti_cooked_rom *rom)
566 {
567 struct sti_cooked_font *font;
568 int i;
569
570 /* check for framebuffer-font first */
571 if (!font_index) {
572 font = sti_select_fbfont(rom, font_name);
573 if (font)
574 return font;
575 }
576
577 if (font_width && font_height)
578 font_index = sti_search_font(rom,
579 font_height, font_width);
580
581 for (font = rom->font_start, i = font_index - 1;
582 font && (i > 0);
583 font = font->next_font, i--);
584
585 if (font)
586 return font;
587 else
588 return rom->font_start;
589 }
590
591
592 static void sti_dump_rom(struct sti_struct *sti)
593 {
594 struct sti_rom *rom = sti->rom->raw;
595 struct sti_cooked_font *font_start;
596 int nr;
597
598 pr_info(" id %04x-%04x, conforms to spec rev. %d.%02x\n",
599 rom->graphics_id[0],
600 rom->graphics_id[1],
601 rom->revno[0] >> 4,
602 rom->revno[0] & 0x0f);
603 pr_debug(" supports %d monitors\n", rom->num_mons);
604 pr_debug(" font start %08x\n", rom->font_start);
605 pr_debug(" region list %08x\n", rom->region_list);
606 pr_debug(" init_graph %08x\n", rom->init_graph);
607 pr_debug(" bus support %02x\n", rom->bus_support);
608 pr_debug(" ext bus support %02x\n", rom->ext_bus_support);
609 pr_debug(" alternate code type %d\n", rom->alt_code_type);
610
611 font_start = sti->rom->font_start;
612 nr = 0;
613 while (font_start) {
614 struct sti_rom_font *f = font_start->raw;
615
616 pr_info(" built-in font #%d: size %dx%d, chars %d-%d, bpc %d\n", ++nr,
617 f->width, f->height,
618 f->first_char, f->last_char, f->bytes_per_char);
619 font_start = font_start->next_font;
620 }
621 }
622
623
624 static int sti_cook_fonts(struct sti_cooked_rom *cooked_rom,
625 struct sti_rom *raw_rom)
626 {
627 struct sti_rom_font *raw_font, *font_start;
628 struct sti_cooked_font *cooked_font;
629
630 cooked_font = kzalloc(sizeof(*cooked_font), GFP_KERNEL);
631 if (!cooked_font)
632 return 0;
633
634 cooked_rom->font_start = cooked_font;
635
636 raw_font = ((void *)raw_rom) + (raw_rom->font_start);
637
638 font_start = raw_font;
639 cooked_font->raw = raw_font;
640
641 while (raw_font->next_font) {
642 raw_font = ((void *)font_start) + (raw_font->next_font);
643
644 cooked_font->next_font = kzalloc(sizeof(*cooked_font), GFP_KERNEL);
645 if (!cooked_font->next_font)
646 return 1;
647
648 cooked_font = cooked_font->next_font;
649
650 cooked_font->raw = raw_font;
651 }
652
653 cooked_font->next_font = NULL;
654 return 1;
655 }
656
657 #define BMODE_RELOCATE(offset) offset = (offset) / 4;
658 #define BMODE_LAST_ADDR_OFFS 0x50
659
660 void sti_font_convert_bytemode(struct sti_struct *sti, struct sti_cooked_font *f)
661 {
662 unsigned char *n, *p, *q;
663 int size = f->raw->bytes_per_char * (f->raw->last_char + 1) + sizeof(struct sti_rom_font);
664 struct sti_rom_font *old_font;
665
666 if (sti->wordmode)
667 return;
668
669 old_font = f->raw_ptr;
670 n = kcalloc(4, size, STI_LOWMEM);
671 f->raw_ptr = n;
672 if (!n)
673 return;
674 p = n + 3;
675 q = (unsigned char *) f->raw;
676 while (size--) {
677 *p = *q++;
678 p += 4;
679 }
680 /* store new ptr to byte-mode font and delete old font */
681 f->raw = (struct sti_rom_font *) (n + 3);
682 kfree(old_font);
683 }
684 EXPORT_SYMBOL(sti_font_convert_bytemode);
685
686 static void sti_bmode_rom_copy(unsigned long base, unsigned long count,
687 void *dest)
688 {
689 unsigned long dest_start = (unsigned long) dest;
690
691 while (count) {
692 count--;
693 *(u8 *)dest = gsc_readl(base);
694 base += 4;
695 dest++;
696 }
697
698 sti_flush(dest_start, (unsigned long)dest);
699 }
700
701 static struct sti_rom *sti_get_bmode_rom (unsigned long address)
702 {
703 struct sti_rom *raw;
704 u32 size;
705 struct sti_rom_font *raw_font, *font_start;
706
707 sti_bmode_rom_copy(address + BMODE_LAST_ADDR_OFFS, sizeof(size), &size);
708
709 size = (size+3) / 4;
710 raw = kmalloc(size, STI_LOWMEM);
711 if (raw) {
712 sti_bmode_rom_copy(address, size, raw);
713 memmove (&raw->res004, &raw->type[0], 0x3c);
714 raw->type[3] = raw->res004;
715
716 BMODE_RELOCATE (raw->region_list);
717 BMODE_RELOCATE (raw->font_start);
718
719 BMODE_RELOCATE (raw->init_graph);
720 BMODE_RELOCATE (raw->state_mgmt);
721 BMODE_RELOCATE (raw->font_unpmv);
722 BMODE_RELOCATE (raw->block_move);
723 BMODE_RELOCATE (raw->inq_conf);
724
725 raw_font = ((void *)raw) + raw->font_start;
726 font_start = raw_font;
727
728 while (raw_font->next_font) {
729 BMODE_RELOCATE (raw_font->next_font);
730 raw_font = ((void *)font_start) + raw_font->next_font;
731 }
732 }
733 return raw;
734 }
735
736 static struct sti_rom *sti_get_wmode_rom(unsigned long address)
737 {
738 struct sti_rom *raw;
739 unsigned long size;
740
741 /* read the ROM size directly from the struct in ROM */
742 size = gsc_readl(address + offsetof(struct sti_rom,last_addr));
743
744 raw = kmalloc(size, STI_LOWMEM);
745 if (raw)
746 sti_rom_copy(address, size, raw);
747
748 return raw;
749 }
750
751 static int sti_read_rom(int wordmode, struct sti_struct *sti,
752 unsigned long address)
753 {
754 struct sti_cooked_rom *cooked;
755 struct sti_rom *raw = NULL;
756 unsigned long revno;
757
758 cooked = kmalloc(sizeof *cooked, GFP_KERNEL);
759 if (!cooked)
760 goto out_err;
761
762 if (wordmode)
763 raw = sti_get_wmode_rom (address);
764 else
765 raw = sti_get_bmode_rom (address);
766
767 if (!raw)
768 goto out_err;
769
770 if (!sti_cook_fonts(cooked, raw)) {
771 pr_warn("No font found for STI at %08lx\n", address);
772 goto out_err;
773 }
774
775 if (raw->region_list)
776 memcpy(sti->regions, ((void *)raw)+raw->region_list, sizeof(sti->regions));
777
778 address = (unsigned long) STI_PTR(raw);
779
780 pr_info("STI %s ROM supports 32 %sbit firmware functions.\n",
781 wordmode ? "word mode" : "byte mode",
782 raw->alt_code_type == ALT_CODE_TYPE_PA_RISC_64
783 ? "and 64 " : "");
784
785 sti->font_unpmv = address + (raw->font_unpmv & 0x03ffffff);
786 sti->block_move = address + (raw->block_move & 0x03ffffff);
787 sti->init_graph = address + (raw->init_graph & 0x03ffffff);
788 sti->inq_conf = address + (raw->inq_conf & 0x03ffffff);
789
790 sti->rom = cooked;
791 sti->rom->raw = raw;
792 sti_dump_rom(sti);
793
794 sti->wordmode = wordmode;
795 sti->font = sti_select_font(sti->rom);
796 sti->font->width = sti->font->raw->width;
797 sti->font->height = sti->font->raw->height;
798 sti_font_convert_bytemode(sti, sti->font);
799
800 sti->sti_mem_request = raw->sti_mem_req;
801 sti->graphics_id[0] = raw->graphics_id[0];
802 sti->graphics_id[1] = raw->graphics_id[1];
803
804 /* check if the ROM routines in this card are compatible */
805 if (wordmode || sti->graphics_id[1] != 0x09A02587)
806 goto ok;
807
808 revno = (raw->revno[0] << 8) | raw->revno[1];
809
810 switch (sti->graphics_id[0]) {
811 case S9000_ID_HCRX:
812 /* HyperA or HyperB ? */
813 if (revno == 0x8408 || revno == 0x840b)
814 goto msg_not_supported;
815 break;
816 case CRT_ID_THUNDER:
817 if (revno == 0x8509)
818 goto msg_not_supported;
819 break;
820 case CRT_ID_THUNDER2:
821 if (revno == 0x850c)
822 goto msg_not_supported;
823 }
824 ok:
825 return 1;
826
827 msg_not_supported:
828 pr_warn("Sorry, this GSC/STI card is not yet supported.\n");
829 pr_warn("Please see https://parisc.wiki.kernel.org/"
830 "index.php/Graphics_howto for more info.\n");
831 /* fall through */
832 out_err:
833 kfree(raw);
834 kfree(cooked);
835 return 0;
836 }
837
838 static struct sti_struct *sti_try_rom_generic(unsigned long address,
839 unsigned long hpa,
840 struct pci_dev *pd)
841 {
842 struct sti_struct *sti;
843 int ok;
844 u32 sig;
845
846 if (num_sti_roms >= MAX_STI_ROMS) {
847 pr_warn("maximum number of STI ROMS reached !\n");
848 return NULL;
849 }
850
851 sti = kzalloc(sizeof(*sti), GFP_KERNEL);
852 if (!sti)
853 return NULL;
854
855 spin_lock_init(&sti->lock);
856
857 test_rom:
858 /* if we can't read the ROM, bail out early. Not being able
859 * to read the hpa is okay, for romless sti */
860 if (pdc_add_valid(address))
861 goto out_err;
862
863 sig = gsc_readl(address);
864
865 /* check for a PCI ROM structure */
866 if ((le32_to_cpu(sig)==0xaa55)) {
867 unsigned int i, rm_offset;
868 u32 *rm;
869 i = gsc_readl(address+0x04);
870 if (i != 1) {
871 /* The ROM could have multiple architecture
872 * dependent images (e.g. i386, parisc,...) */
873 pr_warn("PCI ROM is not a STI ROM type image (0x%8x)\n", i);
874 goto out_err;
875 }
876
877 sti->pd = pd;
878
879 i = gsc_readl(address+0x0c);
880 pr_debug("PCI ROM size (from header) = %d kB\n",
881 le16_to_cpu(i>>16)*512/1024);
882 rm_offset = le16_to_cpu(i & 0xffff);
883 if (rm_offset) {
884 /* read 16 bytes from the pci region mapper array */
885 rm = (u32*) &sti->rm_entry;
886 *rm++ = gsc_readl(address+rm_offset+0x00);
887 *rm++ = gsc_readl(address+rm_offset+0x04);
888 *rm++ = gsc_readl(address+rm_offset+0x08);
889 *rm++ = gsc_readl(address+rm_offset+0x0c);
890 }
891
892 address += le32_to_cpu(gsc_readl(address+8));
893 pr_debug("sig %04x, PCI STI ROM at %08lx\n", sig, address);
894 goto test_rom;
895 }
896
897 ok = 0;
898
899 if ((sig & 0xff) == 0x01) {
900 pr_debug(" byte mode ROM at %08lx, hpa at %08lx\n",
901 address, hpa);
902 ok = sti_read_rom(0, sti, address);
903 }
904
905 if ((sig & 0xffff) == 0x0303) {
906 pr_debug(" word mode ROM at %08lx, hpa at %08lx\n",
907 address, hpa);
908 ok = sti_read_rom(1, sti, address);
909 }
910
911 if (!ok)
912 goto out_err;
913
914 if (sti_init_glob_cfg(sti, address, hpa))
915 goto out_err; /* not enough memory */
916
917 /* disable STI PCI ROM. ROM and card RAM overlap and
918 * leaving it enabled would force HPMCs
919 */
920 if (sti->pd) {
921 unsigned long rom_base;
922 rom_base = pci_resource_start(sti->pd, PCI_ROM_RESOURCE);
923 pci_write_config_dword(sti->pd, PCI_ROM_ADDRESS, rom_base & ~PCI_ROM_ADDRESS_ENABLE);
924 pr_debug("STI PCI ROM disabled\n");
925 }
926
927 if (sti_init_graph(sti))
928 goto out_err;
929
930 sti_inq_conf(sti);
931 sti_dump_globcfg(sti->glob_cfg, sti->sti_mem_request);
932 sti_dump_outptr(sti);
933
934 pr_info(" graphics card name: %s\n",
935 sti->sti_data->inq_outptr.dev_name);
936
937 sti_roms[num_sti_roms] = sti;
938 num_sti_roms++;
939
940 return sti;
941
942 out_err:
943 kfree(sti);
944 return NULL;
945 }
946
947 static void sticore_check_for_default_sti(struct sti_struct *sti, char *path)
948 {
949 if (strcmp (path, default_sti_path) == 0)
950 default_sti = sti;
951 }
952
953 /*
954 * on newer systems PDC gives the address of the ROM
955 * in the additional address field addr[1] while on
956 * older Systems the PDC stores it in page0->proc_sti
957 */
958 static int __init sticore_pa_init(struct parisc_device *dev)
959 {
960 char pa_path[21];
961 struct sti_struct *sti = NULL;
962 int hpa = dev->hpa.start;
963
964 if (dev->num_addrs && dev->addr[0])
965 sti = sti_try_rom_generic(dev->addr[0], hpa, NULL);
966 if (!sti)
967 sti = sti_try_rom_generic(hpa, hpa, NULL);
968 if (!sti)
969 sti = sti_try_rom_generic(PAGE0->proc_sti, hpa, NULL);
970 if (!sti)
971 return 1;
972
973 print_pa_hwpath(dev, pa_path);
974 sticore_check_for_default_sti(sti, pa_path);
975 return 0;
976 }
977
978
979 static int sticore_pci_init(struct pci_dev *pd, const struct pci_device_id *ent)
980 {
981 #ifdef CONFIG_PCI
982 unsigned long fb_base, rom_base;
983 unsigned int fb_len, rom_len;
984 int err;
985 struct sti_struct *sti;
986
987 err = pci_enable_device(pd);
988 if (err < 0) {
989 dev_err(&pd->dev, "Cannot enable PCI device\n");
990 return err;
991 }
992
993 fb_base = pci_resource_start(pd, 0);
994 fb_len = pci_resource_len(pd, 0);
995 rom_base = pci_resource_start(pd, PCI_ROM_RESOURCE);
996 rom_len = pci_resource_len(pd, PCI_ROM_RESOURCE);
997 if (rom_base) {
998 pci_write_config_dword(pd, PCI_ROM_ADDRESS, rom_base | PCI_ROM_ADDRESS_ENABLE);
999 pr_debug("STI PCI ROM enabled at 0x%08lx\n", rom_base);
1000 }
1001
1002 pr_info("STI PCI graphic ROM found at %08lx (%u kB), fb at %08lx (%u MB)\n",
1003 rom_base, rom_len/1024, fb_base, fb_len/1024/1024);
1004
1005 pr_debug("Trying PCI STI ROM at %08lx, PCI hpa at %08lx\n",
1006 rom_base, fb_base);
1007
1008 sti = sti_try_rom_generic(rom_base, fb_base, pd);
1009 if (sti) {
1010 char pa_path[30];
1011 print_pci_hwpath(pd, pa_path);
1012 sticore_check_for_default_sti(sti, pa_path);
1013 }
1014
1015 if (!sti) {
1016 pr_warn("Unable to handle STI device '%s'\n", pci_name(pd));
1017 return -ENODEV;
1018 }
1019 #endif /* CONFIG_PCI */
1020
1021 return 0;
1022 }
1023
1024
1025 static void __exit sticore_pci_remove(struct pci_dev *pd)
1026 {
1027 BUG();
1028 }
1029
1030
1031 static struct pci_device_id sti_pci_tbl[] = {
1032 { PCI_DEVICE(PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_VISUALIZE_EG) },
1033 { PCI_DEVICE(PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_VISUALIZE_FX6) },
1034 { PCI_DEVICE(PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_VISUALIZE_FX4) },
1035 { PCI_DEVICE(PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_VISUALIZE_FX2) },
1036 { PCI_DEVICE(PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_VISUALIZE_FXE) },
1037 { 0, } /* terminate list */
1038 };
1039 MODULE_DEVICE_TABLE(pci, sti_pci_tbl);
1040
1041 static struct pci_driver pci_sti_driver = {
1042 .name = "sti",
1043 .id_table = sti_pci_tbl,
1044 .probe = sticore_pci_init,
1045 .remove = __exit_p(sticore_pci_remove),
1046 };
1047
1048 static struct parisc_device_id sti_pa_tbl[] = {
1049 { HPHW_FIO, HVERSION_REV_ANY_ID, HVERSION_ANY_ID, 0x00077 },
1050 { HPHW_FIO, HVERSION_REV_ANY_ID, HVERSION_ANY_ID, 0x00085 },
1051 { 0, }
1052 };
1053 MODULE_DEVICE_TABLE(parisc, sti_pa_tbl);
1054
1055 static struct parisc_driver pa_sti_driver __refdata = {
1056 .name = "sti",
1057 .id_table = sti_pa_tbl,
1058 .probe = sticore_pa_init,
1059 };
1060
1061
1062 /*
1063 * sti_init_roms() - detects all STI ROMs and stores them in sti_roms[]
1064 */
1065
1066 static int sticore_initialized __read_mostly;
1067
1068 static void sti_init_roms(void)
1069 {
1070 if (sticore_initialized)
1071 return;
1072
1073 sticore_initialized = 1;
1074
1075 pr_info("STI GSC/PCI core graphics driver "
1076 STI_DRIVERVERSION "\n");
1077
1078 /* Register drivers for native & PCI cards */
1079 register_parisc_driver(&pa_sti_driver);
1080 WARN_ON(pci_register_driver(&pci_sti_driver));
1081
1082 /* if we didn't find the given default sti, take the first one */
1083 if (!default_sti)
1084 default_sti = sti_roms[0];
1085
1086 }
1087
1088 /*
1089 * index = 0 gives default sti
1090 * index > 0 gives other stis in detection order
1091 */
1092 struct sti_struct * sti_get_rom(unsigned int index)
1093 {
1094 if (!sticore_initialized)
1095 sti_init_roms();
1096
1097 if (index == 0)
1098 return default_sti;
1099
1100 if (index > num_sti_roms)
1101 return NULL;
1102
1103 return sti_roms[index-1];
1104 }
1105 EXPORT_SYMBOL(sti_get_rom);
1106
1107
1108 int sti_call(const struct sti_struct *sti, unsigned long func,
1109 const void *flags, void *inptr, void *outptr,
1110 struct sti_glob_cfg *glob_cfg)
1111 {
1112 unsigned long _flags = STI_PTR(flags);
1113 unsigned long _inptr = STI_PTR(inptr);
1114 unsigned long _outptr = STI_PTR(outptr);
1115 unsigned long _glob_cfg = STI_PTR(glob_cfg);
1116 int ret;
1117
1118 #ifdef CONFIG_64BIT
1119 /* Check for overflow when using 32bit STI on 64bit kernel. */
1120 if (WARN_ONCE(_flags>>32 || _inptr>>32 || _outptr>>32 || _glob_cfg>>32,
1121 "Out of 32bit-range pointers!"))
1122 return -1;
1123 #endif
1124
1125 ret = pdc_sti_call(func, _flags, _inptr, _outptr, _glob_cfg);
1126
1127 return ret;
1128 }
1129
1130 MODULE_AUTHOR("Philipp Rumpf, Helge Deller, Thomas Bogendoerfer");
1131 MODULE_DESCRIPTION("Core STI driver for HP's NGLE series graphics cards in HP PARISC machines");
1132 MODULE_LICENSE("GPL v2");
1133
Linux with added FPC-III support