1 // SPDX-License-Identifier: GPL-2.0-only
3 * linux/drivers/video/console/sticore.c -
4 * core code for console driver using HP's STI firmware
6 * Copyright (C) 2000 Philipp Rumpf <prumpf@tux.org>
7 * Copyright (C) 2001-2023 Helge Deller <deller@gmx.de>
8 * Copyright (C) 2001-2002 Thomas Bogendoerfer <tsbogend@alpha.franken.de>
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 ;)
17 #define pr_fmt(fmt) "%s: " fmt, KBUILD_MODNAME
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>
27 #include <asm/hardware.h>
29 #include <asm/parisc-device.h>
31 #include <asm/cacheflush.h>
32 #include <asm/grfioctl.h>
34 #include <video/sticore.h>
36 #define STI_DRIVERVERSION "Version 0.9c"
38 static struct sti_struct *default_sti __read_mostly;
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;
44 static void *store_sti_val(struct sti_struct *sti, void *ptr, unsigned long val)
48 if (IS_ENABLED(CONFIG_64BIT) && sti->do_call64) {
49 /* used for 64-bit STI ROM */
50 unsigned long *ptr64 = ptr;
52 ptr64 = PTR_ALIGN(ptr64, sizeof(void *));
57 /* used for 32-bit STI ROM */
62 #define store_sti_ptr(sti, dest, ptr) \
63 store_sti_val(sti, dest, STI_PTR(ptr))
65 /* The colour indices used by STI are
75 * So we have the same colours as VGA (basically one bit each for R, G, B),
76 * but have to translate them, anyway. */
78 static const u8 col_trans[8] = {
83 #define c_fg(sti, c) col_trans[((c>> 8) & 7)]
84 #define c_bg(sti, c) col_trans[((c>>11) & 7)]
85 #define c_index(sti, c) ((c) & 0xff)
87 static const struct sti_init_flags default_init_flags = {
97 static int sti_init_graph(struct sti_struct *sti)
99 struct sti_init_inptr *inptr = &sti->sti_data->init_inptr;
100 struct sti_init_inptr_ext *inptr_ext = &sti->sti_data->init_inptr_ext;
101 struct sti_init_outptr *outptr = &sti->sti_data->init_outptr;
105 spin_lock_irqsave(&sti->lock, flags);
107 memset(inptr, 0, sizeof(*inptr));
108 inptr->text_planes = 3; /* # of text planes (max 3 for STI) */
109 memset(inptr_ext, 0, sizeof(*inptr_ext));
110 store_sti_ptr(sti, &inptr->ext_ptr, inptr_ext);
113 ret = sti_call(sti, sti->init_graph, &default_init_flags, inptr,
114 outptr, sti->glob_cfg);
117 sti->text_planes = outptr->text_planes;
120 spin_unlock_irqrestore(&sti->lock, flags);
123 pr_err("STI init_graph failed (ret %d, errno %d)\n", ret, err);
130 static const struct sti_conf_flags default_conf_flags = {
134 static void sti_inq_conf(struct sti_struct *sti)
136 struct sti_conf_inptr *inptr = &sti->sti_data->inq_inptr;
137 struct sti_conf_outptr *outptr = &sti->sti_data->inq_outptr;
141 store_sti_ptr(sti, &outptr->ext_ptr, &sti->sti_data->inq_outptr_ext);
144 spin_lock_irqsave(&sti->lock, flags);
145 memset(inptr, 0, sizeof(*inptr));
146 ret = sti_call(sti, sti->inq_conf, &default_conf_flags,
147 inptr, outptr, sti->glob_cfg);
148 spin_unlock_irqrestore(&sti->lock, flags);
152 static const struct sti_font_flags default_font_flags = {
158 sti_putc(struct sti_struct *sti, int c, int y, int x,
159 struct sti_cooked_font *font)
161 struct sti_font_inptr *inptr;
162 struct sti_font_inptr inptr_default = {
163 .font_start_addr = (void *)STI_PTR(font->raw),
164 .index = c_index(sti, c),
165 .fg_color = c_fg(sti, c),
166 .bg_color = c_bg(sti, c),
167 .dest_x = x * font->width,
168 .dest_y = y * font->height,
170 struct sti_font_outptr *outptr = &sti->sti_data->font_outptr;
175 spin_lock_irqsave(&sti->lock, flags);
176 inptr = &inptr_default;
177 if (IS_ENABLED(CONFIG_64BIT) && !sti->do_call64) {
178 /* copy below 4G if calling 32-bit on LP64 kernel */
179 inptr = &sti->sti_data->font_inptr;
180 *inptr = inptr_default;
181 /* skip first 4 bytes for 32-bit STI call */
182 inptr = (void *)(((unsigned long)inptr) + sizeof(u32));
184 ret = sti_call(sti, sti->font_unpmv, &default_font_flags,
185 inptr, outptr, sti->glob_cfg);
186 spin_unlock_irqrestore(&sti->lock, flags);
190 static const struct sti_blkmv_flags clear_blkmv_flags = {
197 sti_set(struct sti_struct *sti, int src_y, int src_x,
198 int height, int width, u8 color)
200 struct sti_blkmv_inptr *inptr;
201 struct sti_blkmv_inptr inptr_default = {
211 struct sti_blkmv_outptr *outptr = &sti->sti_data->blkmv_outptr;
216 spin_lock_irqsave(&sti->lock, flags);
217 inptr = &inptr_default;
218 if (IS_ENABLED(CONFIG_64BIT) && !sti->do_call64) {
219 /* copy below 4G if calling 32-bit on LP64 kernel */
220 inptr = &sti->sti_data->blkmv_inptr;
221 *inptr = inptr_default;
223 ret = sti_call(sti, sti->block_move, &clear_blkmv_flags,
224 inptr, outptr, sti->glob_cfg);
225 spin_unlock_irqrestore(&sti->lock, flags);
230 sti_clear(struct sti_struct *sti, int src_y, int src_x,
231 int height, int width, int c, struct sti_cooked_font *font)
233 struct sti_blkmv_inptr *inptr;
234 struct sti_blkmv_inptr inptr_default = {
235 .fg_color = c_fg(sti, c),
236 .bg_color = c_bg(sti, c),
237 .src_x = src_x * font->width,
238 .src_y = src_y * font->height,
239 .dest_x = src_x * font->width,
240 .dest_y = src_y * font->height,
241 .width = width * font->width,
242 .height = height * font->height,
244 struct sti_blkmv_outptr *outptr = &sti->sti_data->blkmv_outptr;
249 spin_lock_irqsave(&sti->lock, flags);
250 inptr = &inptr_default;
251 if (IS_ENABLED(CONFIG_64BIT) && !sti->do_call64) {
252 /* copy below 4G if calling 32-bit on LP64 kernel */
253 inptr = &sti->sti_data->blkmv_inptr;
254 *inptr = inptr_default;
256 ret = sti_call(sti, sti->block_move, &clear_blkmv_flags,
257 inptr, outptr, sti->glob_cfg);
258 spin_unlock_irqrestore(&sti->lock, flags);
262 static const struct sti_blkmv_flags default_blkmv_flags = {
267 sti_bmove(struct sti_struct *sti, int src_y, int src_x,
268 int dst_y, int dst_x, int height, int width,
269 struct sti_cooked_font *font)
271 struct sti_blkmv_inptr *inptr;
272 struct sti_blkmv_inptr inptr_default = {
273 .src_x = src_x * font->width,
274 .src_y = src_y * font->height,
275 .dest_x = dst_x * font->width,
276 .dest_y = dst_y * font->height,
277 .width = width * font->width,
278 .height = height * font->height,
280 struct sti_blkmv_outptr *outptr = &sti->sti_data->blkmv_outptr;
285 spin_lock_irqsave(&sti->lock, flags);
286 inptr = &inptr_default;
287 if (IS_ENABLED(CONFIG_64BIT) && !sti->do_call64) {
288 /* copy below 4G if calling 32-bit on LP64 kernel */
289 inptr = &sti->sti_data->blkmv_inptr;
290 *inptr = inptr_default;
292 ret = sti_call(sti, sti->block_move, &default_blkmv_flags,
293 inptr, outptr, sti->glob_cfg);
294 spin_unlock_irqrestore(&sti->lock, flags);
299 static void sti_flush(unsigned long start, unsigned long end)
301 flush_icache_range(start, end);
304 static void sti_rom_copy(unsigned long base, unsigned long count, void *dest)
306 unsigned long dest_start = (unsigned long) dest;
308 /* this still needs to be revisited (see arch/parisc/mm/init.c:246) ! */
311 *(u32 *)dest = gsc_readl(base);
317 *(u8 *)dest = gsc_readb(base);
322 sti_flush(dest_start, (unsigned long)dest);
328 static char default_sti_path[21] __read_mostly;
331 static int __init sti_setup(char *str)
334 strscpy(default_sti_path, str, sizeof(default_sti_path));
339 /* Assuming the machine has multiple STI consoles (=graphic cards) which
340 * all get detected by sticon, the user may define with the linux kernel
341 * parameter sti=<x> which of them will be the initial boot-console.
342 * <x> is a number between 0 and MAX_STI_ROMS, with 0 as the default
345 __setup("sti=", sti_setup);
350 static char *font_name;
351 static int font_index,
355 static int sti_font_setup(char *str)
358 * The default font can be selected in various ways.
359 * a) sti_font=VGA8x16, sti_font=10x20, sti_font=10*20 selects
360 * an built-in Linux framebuffer font.
361 * b) sti_font=<index>, where index is (1..x) with 1 selecting
362 * the first HP STI ROM built-in font..
365 if (*str >= '0' && *str <= '9') {
368 if ((x = strchr(str, 'x')) || (x = strchr(str, '*'))) {
369 font_height = simple_strtoul(str, NULL, 0);
370 font_width = simple_strtoul(x+1, NULL, 0);
372 font_index = simple_strtoul(str, NULL, 0);
375 font_name = str; /* fb font name */
381 /* The optional linux kernel parameter "sti_font" defines which font
382 * should be used by the sticon driver to draw characters to the screen.
383 * Possible values are:
384 * - sti_font=<fb_fontname>:
385 * <fb_fontname> is the name of one of the linux-kernel built-in
386 * framebuffer font names (e.g. VGA8x16, SUN22x18).
387 * This is only available if the fonts have been statically compiled
388 * in with e.g. the CONFIG_FONT_8x16 or CONFIG_FONT_SUN12x22 options.
389 * - sti_font=<number> (<number> = 1,2,3,...)
390 * most STI ROMs have built-in HP specific fonts, which can be selected
391 * by giving the desired number to the sticon driver.
392 * NOTE: This number is machine and STI ROM dependend.
393 * - sti_font=<height>x<width> (e.g. sti_font=16x8)
394 * <height> and <width> gives hints to the height and width of the
395 * font which the user wants. The sticon driver will try to use
396 * a font with this height and width, but if no suitable font is
397 * found, sticon will use the default 8x8 font.
399 __setup("sti_font=", sti_font_setup);
404 static void sti_dump_globcfg(struct sti_struct *sti)
406 struct sti_glob_cfg *glob_cfg = sti->glob_cfg;
407 struct sti_glob_cfg_ext *cfg = &sti->sti_data->glob_cfg_ext;
409 pr_debug("%d text planes\n"
410 "%4d x %4d screen resolution\n"
411 "%4d x %4d offscreen\n"
412 "%4d x %4d layout\n",
413 glob_cfg->text_planes,
414 glob_cfg->onscreen_x, glob_cfg->onscreen_y,
415 glob_cfg->offscreen_x, glob_cfg->offscreen_y,
416 glob_cfg->total_x, glob_cfg->total_y);
418 /* dump extended cfg */
419 pr_debug("monitor %d\n"
420 "in friendly mode: %d\n"
421 "power consumption %d watts\n"
423 "sti_mem_addr %px (size=%d bytes)\n",
428 cfg->sti_mem_addr, sti->sti_mem_request);
431 static void sti_dump_outptr(struct sti_struct *sti)
433 pr_debug("%d bits per pixel\n"
437 sti->sti_data->inq_outptr.bits_per_pixel,
438 sti->sti_data->inq_outptr.bits_used,
439 sti->sti_data->inq_outptr.planes,
440 sti->sti_data->inq_outptr.attributes);
443 static int sti_init_glob_cfg(struct sti_struct *sti, unsigned long rom_address,
446 struct sti_glob_cfg *glob_cfg;
447 struct sti_glob_cfg_ext *glob_cfg_ext;
448 void *save_addr, *ptr;
452 if (sti->sti_mem_request < 256)
453 sti->sti_mem_request = 256; /* STI default */
455 size = sizeof(struct sti_all_data) + sti->sti_mem_request - 256;
457 sti->sti_data = kzalloc(size, STI_LOWMEM);
461 glob_cfg = &sti->sti_data->glob_cfg;
462 glob_cfg_ext = &sti->sti_data->glob_cfg_ext;
463 save_addr = &sti->sti_data->save_addr;
464 sti_mem_addr = &sti->sti_data->sti_mem_addr;
466 for (i = 0; i < STI_REGION_MAX; i++) {
467 unsigned long newhpa, len;
470 unsigned char offs = sti->rm_entry[i];
474 if (offs != PCI_ROM_ADDRESS &&
475 (offs < PCI_BASE_ADDRESS_0 ||
476 offs > PCI_BASE_ADDRESS_5)) {
477 pr_warn("STI pci region mapping for region %d (%02x) can't be mapped\n",
481 newhpa = pci_resource_start (sti->pd, (offs - PCI_BASE_ADDRESS_0) / 4);
483 newhpa = (i == 0) ? rom_address : hpa;
485 sti->regions_phys[i] =
486 REGION_OFFSET_TO_PHYS(sti->regions[i], newhpa);
488 len = sti->regions[i].region_desc.length * 4096;
490 pr_debug("region #%d: phys %08lx, len=%lukB, "
491 "btlb=%d, sysonly=%d, cache=%d, last=%d\n",
492 i, sti->regions_phys[i], len / 1024,
493 sti->regions[i].region_desc.btlb,
494 sti->regions[i].region_desc.sys_only,
495 sti->regions[i].region_desc.cache,
496 sti->regions[i].region_desc.last);
498 /* last entry reached ? */
499 if (sti->regions[i].region_desc.last)
503 ptr = &glob_cfg->region_ptrs;
504 for (i = 0; i < STI_REGION_MAX; i++)
505 ptr = store_sti_val(sti, ptr, sti->regions_phys[i]);
507 *(s32 *)ptr = 0; /* set reent_lvl */
509 ptr = store_sti_ptr(sti, ptr, save_addr);
510 ptr = store_sti_ptr(sti, ptr, glob_cfg_ext);
512 store_sti_ptr(sti, &glob_cfg_ext->sti_mem_addr, sti_mem_addr);
514 sti->glob_cfg = glob_cfg;
519 #ifdef CONFIG_FONT_SUPPORT
520 static struct sti_cooked_font *
521 sti_select_fbfont(struct sti_cooked_rom *cooked_rom, const char *fbfont_name)
523 const struct font_desc *fbfont = NULL;
524 unsigned int size, bpc;
526 struct sti_rom_font *nf;
527 struct sti_cooked_font *cooked_font;
529 if (fbfont_name && strlen(fbfont_name))
530 fbfont = find_font(fbfont_name);
532 fbfont = get_default_font(1024,768, ~(u32)0, ~(u32)0);
536 pr_info(" using %ux%u framebuffer font %s\n",
537 fbfont->width, fbfont->height, fbfont->name);
539 bpc = ((fbfont->width+7)/8) * fbfont->height;
540 size = bpc * fbfont->charcount;
541 size += sizeof(struct sti_rom_font);
543 nf = kzalloc(size, STI_LOWMEM);
548 nf->last_char = fbfont->charcount - 1;
549 nf->width = fbfont->width;
550 nf->height = fbfont->height;
551 nf->font_type = STI_FONT_HPROMAN8;
552 nf->bytes_per_char = bpc;
554 nf->underline_height = 1;
555 nf->underline_pos = fbfont->height - nf->underline_height;
558 dest += sizeof(struct sti_rom_font);
559 memcpy(dest, fbfont->data, bpc * fbfont->charcount);
561 cooked_font = kzalloc(sizeof(*cooked_font), GFP_KERNEL);
567 cooked_font->raw = nf;
568 cooked_font->raw_ptr = nf;
569 cooked_font->next_font = NULL;
571 cooked_rom->font_start = cooked_font;
576 static struct sti_cooked_font *
577 sti_select_fbfont(struct sti_cooked_rom *cooked_rom, const char *fbfont_name)
583 static void sti_dump_font(struct sti_cooked_font *font)
586 unsigned char *p = (unsigned char *)font->raw;
589 p += sizeof(struct sti_rom_font);
590 pr_debug(" w %d h %d bpc %d\n", font->width, font->height,
591 font->raw->bytes_per_char);
593 for (n = 0; n < 256 * font->raw->bytes_per_char; n += 16, p += 16) {
594 pr_debug(" 0x%02x, 0x%02x, 0x%02x, 0x%02x, 0x%02x, 0x%02x,"
595 " 0x%02x, 0x%02x, 0x%02x, 0x%02x, 0x%02x, 0x%02x,"
596 " 0x%02x, 0x%02x, 0x%02x, 0x%02x,\n",
597 p[0], p[1], p[2], p[3], p[4], p[5], p[6], p[7], p[8],
598 p[9], p[10], p[11], p[12], p[13], p[14], p[15]);
603 static int sti_search_font(struct sti_cooked_rom *rom, int height, int width)
605 struct sti_cooked_font *font;
608 for (font = rom->font_start; font; font = font->next_font, i++) {
609 if ((font->raw->width == width) &&
610 (font->raw->height == height))
616 static struct sti_cooked_font *sti_select_font(struct sti_cooked_rom *rom)
618 struct sti_cooked_font *font;
621 /* check for framebuffer-font first */
623 font = sti_select_fbfont(rom, font_name);
628 if (font_width && font_height)
629 font_index = sti_search_font(rom,
630 font_height, font_width);
632 for (font = rom->font_start, i = font_index - 1;
634 font = font->next_font, i--);
639 return rom->font_start;
643 static void sti_dump_rom(struct sti_struct *sti)
645 struct sti_rom *rom = sti->rom->raw;
646 struct sti_cooked_font *font_start;
649 pr_info(" id %04x-%04x, conforms to spec rev. %d.%02x\n",
653 rom->revno[0] & 0x0f);
654 pr_debug(" supports %d monitors\n", rom->num_mons);
655 pr_debug(" font start %08x\n", rom->font_start);
656 pr_debug(" region list %08x\n", rom->region_list);
657 pr_debug(" init_graph %08x\n", rom->init_graph);
658 pr_debug(" bus support %02x\n", rom->bus_support);
659 pr_debug(" ext bus support %02x\n", rom->ext_bus_support);
660 pr_debug(" alternate code type %d\n", rom->alt_code_type);
662 font_start = sti->rom->font_start;
665 struct sti_rom_font *f = font_start->raw;
667 pr_info(" built-in font #%d: size %dx%d, chars %d-%d, bpc %d\n", ++nr,
669 f->first_char, f->last_char, f->bytes_per_char);
670 font_start = font_start->next_font;
675 static int sti_cook_fonts(struct sti_cooked_rom *cooked_rom,
676 struct sti_rom *raw_rom)
678 struct sti_rom_font *raw_font, *font_start;
679 struct sti_cooked_font *cooked_font;
681 cooked_font = kzalloc(sizeof(*cooked_font), GFP_KERNEL);
685 cooked_rom->font_start = cooked_font;
687 raw_font = ((void *)raw_rom) + (raw_rom->font_start);
689 font_start = raw_font;
690 cooked_font->raw = raw_font;
692 while (raw_font->next_font) {
693 raw_font = ((void *)font_start) + (raw_font->next_font);
695 cooked_font->next_font = kzalloc(sizeof(*cooked_font), GFP_KERNEL);
696 if (!cooked_font->next_font)
699 cooked_font = cooked_font->next_font;
701 cooked_font->raw = raw_font;
704 cooked_font->next_font = NULL;
708 #define BMODE_RELOCATE(offset) offset = (offset) / 4;
709 #define BMODE_LAST_ADDR_OFFS 0x50
711 void sti_font_convert_bytemode(struct sti_struct *sti, struct sti_cooked_font *f)
713 unsigned char *n, *p, *q;
714 int size = f->raw->bytes_per_char * (f->raw->last_char + 1) + sizeof(struct sti_rom_font);
715 struct sti_rom_font *old_font;
720 old_font = f->raw_ptr;
721 n = kcalloc(4, size, STI_LOWMEM);
726 q = (unsigned char *) f->raw;
731 /* store new ptr to byte-mode font and delete old font */
732 f->raw = (struct sti_rom_font *) (n + 3);
735 EXPORT_SYMBOL(sti_font_convert_bytemode);
737 static void sti_bmode_rom_copy(unsigned long base, unsigned long count,
740 unsigned long dest_start = (unsigned long) dest;
744 *(u8 *)dest = gsc_readl(base);
749 sti_flush(dest_start, (unsigned long)dest);
752 static struct sti_rom *sti_get_bmode_rom (unsigned long address)
756 struct sti_rom_font *raw_font, *font_start;
758 sti_bmode_rom_copy(address + BMODE_LAST_ADDR_OFFS, sizeof(size), &size);
761 raw = kmalloc(size, STI_LOWMEM);
763 sti_bmode_rom_copy(address, size, raw);
764 memmove (&raw->res004, &raw->type[0], 0x3c);
765 raw->type[3] = raw->res004;
767 BMODE_RELOCATE (raw->region_list);
768 BMODE_RELOCATE (raw->font_start);
770 BMODE_RELOCATE (raw->init_graph);
771 BMODE_RELOCATE (raw->state_mgmt);
772 BMODE_RELOCATE (raw->font_unpmv);
773 BMODE_RELOCATE (raw->block_move);
774 BMODE_RELOCATE (raw->inq_conf);
776 raw_font = ((void *)raw) + raw->font_start;
777 font_start = raw_font;
779 while (raw_font->next_font) {
780 BMODE_RELOCATE (raw_font->next_font);
781 raw_font = ((void *)font_start) + raw_font->next_font;
787 static struct sti_rom *sti_get_wmode_rom(unsigned long address)
792 /* read the ROM size directly from the struct in ROM */
793 size = gsc_readl(address + offsetof(struct sti_rom,last_addr));
795 raw = kmalloc(size, STI_LOWMEM);
797 sti_rom_copy(address, size, raw);
802 static int sti_read_rom(int wordmode, struct sti_struct *sti,
803 unsigned long address)
805 struct sti_cooked_rom *cooked;
806 struct sti_rom *raw = NULL;
809 cooked = kmalloc(sizeof *cooked, GFP_KERNEL);
814 raw = sti_get_wmode_rom (address);
816 raw = sti_get_bmode_rom (address);
821 if (!sti_cook_fonts(cooked, raw)) {
822 pr_warn("No font found for STI at %08lx\n", address);
826 if (raw->region_list)
827 memcpy(sti->regions, ((void *)raw)+raw->region_list, sizeof(sti->regions));
829 address = (unsigned long) STI_PTR(raw);
831 pr_info("STI %s ROM supports 32 %sbit firmware functions.\n",
832 wordmode ? "word mode" : "byte mode",
833 raw->alt_code_type == ALT_CODE_TYPE_PA_RISC_64
836 if (IS_ENABLED(CONFIG_64BIT) &&
837 raw->alt_code_type == ALT_CODE_TYPE_PA_RISC_64) {
839 sti->font_unpmv = address + (raw->font_unp_addr & 0x03ffffff);
840 sti->block_move = address + (raw->block_move_addr & 0x03ffffff);
841 sti->init_graph = address + (raw->init_graph_addr & 0x03ffffff);
842 sti->inq_conf = address + (raw->inq_conf_addr & 0x03ffffff);
844 sti->font_unpmv = address + (raw->font_unpmv & 0x03ffffff);
845 sti->block_move = address + (raw->block_move & 0x03ffffff);
846 sti->init_graph = address + (raw->init_graph & 0x03ffffff);
847 sti->inq_conf = address + (raw->inq_conf & 0x03ffffff);
854 sti->wordmode = wordmode;
855 sti->font = sti_select_font(sti->rom);
856 sti->font->width = sti->font->raw->width;
857 sti->font->height = sti->font->raw->height;
858 sti_font_convert_bytemode(sti, sti->font);
859 sti_dump_font(sti->font);
861 pr_info(" using %d-bit STI ROM functions\n",
862 (IS_ENABLED(CONFIG_64BIT) && sti->do_call64) ? 64 : 32);
864 sti->sti_mem_request = raw->sti_mem_req;
865 pr_debug(" mem_request = %d, reentsize %d\n",
866 sti->sti_mem_request, raw->reentsize);
868 sti->graphics_id[0] = raw->graphics_id[0];
869 sti->graphics_id[1] = raw->graphics_id[1];
871 /* check if the ROM routines in this card are compatible */
872 if (wordmode || sti->graphics_id[1] != 0x09A02587)
875 revno = (raw->revno[0] << 8) | raw->revno[1];
877 switch (sti->graphics_id[0]) {
879 /* HyperA or HyperB ? */
880 if (revno == 0x8408 || revno == 0x840b)
881 goto msg_not_supported;
885 goto msg_not_supported;
887 case CRT_ID_THUNDER2:
889 goto msg_not_supported;
895 pr_warn("Sorry, this GSC/STI card is not yet supported.\n");
896 pr_warn("Please see https://parisc.wiki.kernel.org/"
897 "index.php/Graphics_howto for more info.\n");
905 static struct sti_struct *sti_try_rom_generic(unsigned long address,
909 struct sti_struct *sti;
913 if (num_sti_roms >= MAX_STI_ROMS) {
914 pr_warn("maximum number of STI ROMS reached !\n");
918 sti = kzalloc(sizeof(*sti), GFP_KERNEL);
922 spin_lock_init(&sti->lock);
925 /* pdc_add_valid() works only on 32-bit kernels */
926 if ((!IS_ENABLED(CONFIG_64BIT) ||
927 (boot_cpu_data.pdc.capabilities & PDC_MODEL_OS32)) &&
928 pdc_add_valid(address)) {
932 sig = gsc_readl(address);
934 /* check for a PCI ROM structure */
935 if ((le32_to_cpu(sig)==0xaa55)) {
936 unsigned int i, rm_offset;
938 i = gsc_readl(address+0x04);
940 /* The ROM could have multiple architecture
941 * dependent images (e.g. i386, parisc,...) */
942 pr_warn("PCI ROM is not a STI ROM type image (0x%8x)\n", i);
948 i = gsc_readl(address+0x0c);
949 pr_debug("PCI ROM size (from header) = %d kB\n",
950 le16_to_cpu(i>>16)*512/1024);
951 rm_offset = le16_to_cpu(i & 0xffff);
953 /* read 16 bytes from the pci region mapper array */
954 rm = (u32*) &sti->rm_entry;
955 *rm++ = gsc_readl(address+rm_offset+0x00);
956 *rm++ = gsc_readl(address+rm_offset+0x04);
957 *rm++ = gsc_readl(address+rm_offset+0x08);
958 *rm++ = gsc_readl(address+rm_offset+0x0c);
961 address += le32_to_cpu(gsc_readl(address+8));
962 pr_debug("sig %04x, PCI STI ROM at %08lx\n", sig, address);
968 if ((sig & 0xff) == 0x01) {
969 pr_debug(" byte mode ROM at %08lx, hpa at %08lx\n",
971 ok = sti_read_rom(0, sti, address);
974 if ((sig & 0xffff) == 0x0303) {
975 pr_debug(" word mode ROM at %08lx, hpa at %08lx\n",
977 ok = sti_read_rom(1, sti, address);
983 if (sti_init_glob_cfg(sti, address, hpa))
984 goto out_err; /* not enough memory */
986 /* disable STI PCI ROM. ROM and card RAM overlap and
987 * leaving it enabled would force HPMCs
990 unsigned long rom_base;
991 rom_base = pci_resource_start(sti->pd, PCI_ROM_RESOURCE);
992 pci_write_config_dword(sti->pd, PCI_ROM_ADDRESS, rom_base & ~PCI_ROM_ADDRESS_ENABLE);
993 pr_debug("STI PCI ROM disabled\n");
996 if (sti_init_graph(sti))
1000 sti_dump_globcfg(sti);
1001 sti_dump_outptr(sti);
1003 pr_info(" graphics card name: %s\n",
1004 sti->sti_data->inq_outptr.dev_name);
1006 sti_roms[num_sti_roms] = sti;
1016 static void sticore_check_for_default_sti(struct sti_struct *sti, char *path)
1018 pr_info(" located at [%s]\n", sti->pa_path);
1019 if (strcmp (path, default_sti_path) == 0)
1024 * on newer systems PDC gives the address of the ROM
1025 * in the additional address field addr[1] while on
1026 * older Systems the PDC stores it in page0->proc_sti
1028 static int __init sticore_pa_init(struct parisc_device *dev)
1030 struct sti_struct *sti = NULL;
1031 int hpa = dev->hpa.start;
1033 if (dev->num_addrs && dev->addr[0])
1034 sti = sti_try_rom_generic(dev->addr[0], hpa, NULL);
1036 sti = sti_try_rom_generic(hpa, hpa, NULL);
1038 sti = sti_try_rom_generic(PAGE0->proc_sti, hpa, NULL);
1042 print_pa_hwpath(dev, sti->pa_path);
1043 sticore_check_for_default_sti(sti, sti->pa_path);
1048 static int sticore_pci_init(struct pci_dev *pd, const struct pci_device_id *ent)
1051 unsigned long fb_base, rom_base;
1052 unsigned int fb_len, rom_len;
1054 struct sti_struct *sti;
1056 err = pci_enable_device(pd);
1058 dev_err(&pd->dev, "Cannot enable PCI device\n");
1062 fb_base = pci_resource_start(pd, 0);
1063 fb_len = pci_resource_len(pd, 0);
1064 rom_base = pci_resource_start(pd, PCI_ROM_RESOURCE);
1065 rom_len = pci_resource_len(pd, PCI_ROM_RESOURCE);
1067 pci_write_config_dword(pd, PCI_ROM_ADDRESS, rom_base | PCI_ROM_ADDRESS_ENABLE);
1068 pr_debug("STI PCI ROM enabled at 0x%08lx\n", rom_base);
1071 pr_info("STI PCI graphic ROM found at %08lx (%u kB), fb at %08lx (%u MB)\n",
1072 rom_base, rom_len/1024, fb_base, fb_len/1024/1024);
1074 pr_debug("Trying PCI STI ROM at %08lx, PCI hpa at %08lx\n",
1077 sti = sti_try_rom_generic(rom_base, fb_base, pd);
1079 print_pci_hwpath(pd, sti->pa_path);
1080 sticore_check_for_default_sti(sti, sti->pa_path);
1084 pr_warn("Unable to handle STI device '%s'\n", pci_name(pd));
1087 #endif /* CONFIG_PCI */
1093 static void __exit sticore_pci_remove(struct pci_dev *pd)
1099 static struct pci_device_id sti_pci_tbl[] = {
1100 { PCI_DEVICE(PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_VISUALIZE_EG) },
1101 { PCI_DEVICE(PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_VISUALIZE_FX6) },
1102 { PCI_DEVICE(PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_VISUALIZE_FX4) },
1103 { PCI_DEVICE(PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_VISUALIZE_FX2) },
1104 { PCI_DEVICE(PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_VISUALIZE_FXE) },
1105 { 0, } /* terminate list */
1107 MODULE_DEVICE_TABLE(pci, sti_pci_tbl);
1109 static struct pci_driver pci_sti_driver = {
1111 .id_table = sti_pci_tbl,
1112 .probe = sticore_pci_init,
1113 .remove = __exit_p(sticore_pci_remove),
1116 static struct parisc_device_id sti_pa_tbl[] = {
1117 { HPHW_FIO, HVERSION_REV_ANY_ID, HVERSION_ANY_ID, 0x00077 },
1118 { HPHW_FIO, HVERSION_REV_ANY_ID, HVERSION_ANY_ID, 0x00085 },
1121 MODULE_DEVICE_TABLE(parisc, sti_pa_tbl);
1123 static struct parisc_driver pa_sti_driver __refdata = {
1125 .id_table = sti_pa_tbl,
1126 .probe = sticore_pa_init,
1131 * sti_init_roms() - detects all STI ROMs and stores them in sti_roms[]
1134 static int sticore_initialized __read_mostly;
1136 static void sti_init_roms(void)
1138 if (sticore_initialized)
1141 sticore_initialized = 1;
1143 pr_info("STI GSC/PCI core graphics driver "
1144 STI_DRIVERVERSION "\n");
1146 /* Register drivers for native & PCI cards */
1147 register_parisc_driver(&pa_sti_driver);
1148 WARN_ON(pci_register_driver(&pci_sti_driver));
1150 /* if we didn't find the given default sti, take the first one */
1152 default_sti = sti_roms[0];
1157 * index = 0 gives default sti
1158 * index > 0 gives other stis in detection order
1160 struct sti_struct * sti_get_rom(unsigned int index)
1162 if (!sticore_initialized)
1168 if (index > num_sti_roms)
1171 return sti_roms[index-1];
1173 EXPORT_SYMBOL(sti_get_rom);
1176 int sti_call(const struct sti_struct *sti, unsigned long func,
1177 const void *flags, void *inptr, void *outptr,
1178 struct sti_glob_cfg *glob_cfg)
1180 unsigned long _flags = STI_PTR(flags);
1181 unsigned long _inptr = STI_PTR(inptr);
1182 unsigned long _outptr = STI_PTR(outptr);
1183 unsigned long _glob_cfg = STI_PTR(glob_cfg);
1186 /* Check for overflow when using 32bit STI on 64bit kernel. */
1187 if (WARN_ONCE(IS_ENABLED(CONFIG_64BIT) && !sti->do_call64 &&
1188 (upper_32_bits(_flags) || upper_32_bits(_inptr) ||
1189 upper_32_bits(_outptr) || upper_32_bits(_glob_cfg)),
1190 "Out of 32bit-range pointers!"))
1193 ret = pdc_sti_call(func, _flags, _inptr, _outptr, _glob_cfg,
1199 MODULE_AUTHOR("Philipp Rumpf, Helge Deller, Thomas Bogendoerfer");
1200 MODULE_DESCRIPTION("Core STI driver for HP's NGLE series graphics cards in HP PARISC machines");
1201 MODULE_LICENSE("GPL v2");