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) 2001-2020 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>
35 #include "../fbdev/sticore.h"
37 #define STI_DRIVERVERSION "Version 0.9b"
39 static struct sti_struct *default_sti __read_mostly;
41 /* number of STI ROMS found and their ptrs to each struct */
42 static int num_sti_roms __read_mostly;
43 static struct sti_struct *sti_roms[MAX_STI_ROMS] __read_mostly;
46 /* The colour indices used by STI are
56 * So we have the same colours as VGA (basically one bit each for R, G, B),
57 * but have to translate them, anyway. */
59 static const u8 col_trans[8] = {
64 #define c_fg(sti, c) col_trans[((c>> 8) & 7)]
65 #define c_bg(sti, c) col_trans[((c>>11) & 7)]
66 #define c_index(sti, c) ((c) & 0xff)
68 static const struct sti_init_flags default_init_flags = {
78 static int sti_init_graph(struct sti_struct *sti)
80 struct sti_init_inptr *inptr = &sti->sti_data->init_inptr;
81 struct sti_init_inptr_ext *inptr_ext = &sti->sti_data->init_inptr_ext;
82 struct sti_init_outptr *outptr = &sti->sti_data->init_outptr;
86 spin_lock_irqsave(&sti->lock, flags);
88 memset(inptr, 0, sizeof(*inptr));
89 inptr->text_planes = 3; /* # of text planes (max 3 for STI) */
90 memset(inptr_ext, 0, sizeof(*inptr_ext));
91 inptr->ext_ptr = STI_PTR(inptr_ext);
94 ret = sti_call(sti, sti->init_graph, &default_init_flags, inptr,
95 outptr, sti->glob_cfg);
98 sti->text_planes = outptr->text_planes;
101 spin_unlock_irqrestore(&sti->lock, flags);
104 pr_err("STI init_graph failed (ret %d, errno %d)\n", ret, err);
111 static const struct sti_conf_flags default_conf_flags = {
115 static void sti_inq_conf(struct sti_struct *sti)
117 struct sti_conf_inptr *inptr = &sti->sti_data->inq_inptr;
118 struct sti_conf_outptr *outptr = &sti->sti_data->inq_outptr;
122 outptr->ext_ptr = STI_PTR(&sti->sti_data->inq_outptr_ext);
125 spin_lock_irqsave(&sti->lock, flags);
126 memset(inptr, 0, sizeof(*inptr));
127 ret = sti_call(sti, sti->inq_conf, &default_conf_flags,
128 inptr, outptr, sti->glob_cfg);
129 spin_unlock_irqrestore(&sti->lock, flags);
133 static const struct sti_font_flags default_font_flags = {
139 sti_putc(struct sti_struct *sti, int c, int y, int x,
140 struct sti_cooked_font *font)
142 struct sti_font_inptr *inptr = &sti->sti_data->font_inptr;
143 struct sti_font_inptr inptr_default = {
144 .font_start_addr = STI_PTR(font->raw),
145 .index = c_index(sti, c),
146 .fg_color = c_fg(sti, c),
147 .bg_color = c_bg(sti, c),
148 .dest_x = x * font->width,
149 .dest_y = y * font->height,
151 struct sti_font_outptr *outptr = &sti->sti_data->font_outptr;
156 spin_lock_irqsave(&sti->lock, flags);
157 *inptr = inptr_default;
158 ret = sti_call(sti, sti->font_unpmv, &default_font_flags,
159 inptr, outptr, sti->glob_cfg);
160 spin_unlock_irqrestore(&sti->lock, flags);
164 static const struct sti_blkmv_flags clear_blkmv_flags = {
171 sti_set(struct sti_struct *sti, int src_y, int src_x,
172 int height, int width, u8 color)
174 struct sti_blkmv_inptr *inptr = &sti->sti_data->blkmv_inptr;
175 struct sti_blkmv_inptr inptr_default = {
185 struct sti_blkmv_outptr *outptr = &sti->sti_data->blkmv_outptr;
190 spin_lock_irqsave(&sti->lock, flags);
191 *inptr = inptr_default;
192 ret = sti_call(sti, sti->block_move, &clear_blkmv_flags,
193 inptr, outptr, sti->glob_cfg);
194 spin_unlock_irqrestore(&sti->lock, flags);
199 sti_clear(struct sti_struct *sti, int src_y, int src_x,
200 int height, int width, int c, struct sti_cooked_font *font)
202 struct sti_blkmv_inptr *inptr = &sti->sti_data->blkmv_inptr;
203 struct sti_blkmv_inptr inptr_default = {
204 .fg_color = c_fg(sti, c),
205 .bg_color = c_bg(sti, c),
206 .src_x = src_x * font->width,
207 .src_y = src_y * font->height,
208 .dest_x = src_x * font->width,
209 .dest_y = src_y * font->height,
210 .width = width * font->width,
211 .height = height * font->height,
213 struct sti_blkmv_outptr *outptr = &sti->sti_data->blkmv_outptr;
218 spin_lock_irqsave(&sti->lock, flags);
219 *inptr = inptr_default;
220 ret = sti_call(sti, sti->block_move, &clear_blkmv_flags,
221 inptr, outptr, sti->glob_cfg);
222 spin_unlock_irqrestore(&sti->lock, flags);
226 static const struct sti_blkmv_flags default_blkmv_flags = {
231 sti_bmove(struct sti_struct *sti, int src_y, int src_x,
232 int dst_y, int dst_x, int height, int width,
233 struct sti_cooked_font *font)
235 struct sti_blkmv_inptr *inptr = &sti->sti_data->blkmv_inptr;
236 struct sti_blkmv_inptr inptr_default = {
237 .src_x = src_x * font->width,
238 .src_y = src_y * font->height,
239 .dest_x = dst_x * font->width,
240 .dest_y = dst_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 ret = sti_call(sti, sti->block_move, &default_blkmv_flags,
252 inptr, outptr, sti->glob_cfg);
253 spin_unlock_irqrestore(&sti->lock, flags);
258 static void sti_flush(unsigned long start, unsigned long end)
260 flush_icache_range(start, end);
263 static void sti_rom_copy(unsigned long base, unsigned long count, void *dest)
265 unsigned long dest_start = (unsigned long) dest;
267 /* this still needs to be revisited (see arch/parisc/mm/init.c:246) ! */
270 *(u32 *)dest = gsc_readl(base);
276 *(u8 *)dest = gsc_readb(base);
281 sti_flush(dest_start, (unsigned long)dest);
287 static char default_sti_path[21] __read_mostly;
290 static int __init sti_setup(char *str)
293 strlcpy (default_sti_path, str, sizeof (default_sti_path));
298 /* Assuming the machine has multiple STI consoles (=graphic cards) which
299 * all get detected by sticon, the user may define with the linux kernel
300 * parameter sti=<x> which of them will be the initial boot-console.
301 * <x> is a number between 0 and MAX_STI_ROMS, with 0 as the default
304 __setup("sti=", sti_setup);
309 static char *font_name;
310 static int font_index,
314 static int sti_font_setup(char *str)
317 * The default font can be selected in various ways.
318 * a) sti_font=VGA8x16, sti_font=10x20, sti_font=10*20 selects
319 * an built-in Linux framebuffer font.
320 * b) sti_font=<index>, where index is (1..x) with 1 selecting
321 * the first HP STI ROM built-in font..
324 if (*str >= '0' && *str <= '9') {
327 if ((x = strchr(str, 'x')) || (x = strchr(str, '*'))) {
328 font_height = simple_strtoul(str, NULL, 0);
329 font_width = simple_strtoul(x+1, NULL, 0);
331 font_index = simple_strtoul(str, NULL, 0);
334 font_name = str; /* fb font name */
340 /* The optional linux kernel parameter "sti_font" defines which font
341 * should be used by the sticon driver to draw characters to the screen.
342 * Possible values are:
343 * - sti_font=<fb_fontname>:
344 * <fb_fontname> is the name of one of the linux-kernel built-in
345 * framebuffer font names (e.g. VGA8x16, SUN22x18).
346 * This is only available if the fonts have been statically compiled
347 * in with e.g. the CONFIG_FONT_8x16 or CONFIG_FONT_SUN12x22 options.
348 * - sti_font=<number> (<number> = 1,2,3,...)
349 * most STI ROMs have built-in HP specific fonts, which can be selected
350 * by giving the desired number to the sticon driver.
351 * NOTE: This number is machine and STI ROM dependend.
352 * - sti_font=<height>x<width> (e.g. sti_font=16x8)
353 * <height> and <width> gives hints to the height and width of the
354 * font which the user wants. The sticon driver will try to use
355 * a font with this height and width, but if no suitable font is
356 * found, sticon will use the default 8x8 font.
358 __setup("sti_font=", sti_font_setup);
363 static void sti_dump_globcfg(struct sti_glob_cfg *glob_cfg,
364 unsigned int sti_mem_request)
366 struct sti_glob_cfg_ext *cfg;
368 pr_debug("%d text planes\n"
369 "%4d x %4d screen resolution\n"
370 "%4d x %4d offscreen\n"
372 "regions at %08x %08x %08x %08x\n"
373 "regions at %08x %08x %08x %08x\n"
376 glob_cfg->text_planes,
377 glob_cfg->onscreen_x, glob_cfg->onscreen_y,
378 glob_cfg->offscreen_x, glob_cfg->offscreen_y,
379 glob_cfg->total_x, glob_cfg->total_y,
380 glob_cfg->region_ptrs[0], glob_cfg->region_ptrs[1],
381 glob_cfg->region_ptrs[2], glob_cfg->region_ptrs[3],
382 glob_cfg->region_ptrs[4], glob_cfg->region_ptrs[5],
383 glob_cfg->region_ptrs[6], glob_cfg->region_ptrs[7],
385 glob_cfg->save_addr);
387 /* dump extended cfg */
388 cfg = PTR_STI((unsigned long)glob_cfg->ext_ptr);
389 pr_debug("monitor %d\n"
390 "in friendly mode: %d\n"
391 "power consumption %d watts\n"
393 "sti_mem_addr %08x (size=%d bytes)\n",
398 cfg->sti_mem_addr, sti_mem_request);
401 static void sti_dump_outptr(struct sti_struct *sti)
403 pr_debug("%d bits per pixel\n"
407 sti->sti_data->inq_outptr.bits_per_pixel,
408 sti->sti_data->inq_outptr.bits_used,
409 sti->sti_data->inq_outptr.planes,
410 sti->sti_data->inq_outptr.attributes);
413 static int sti_init_glob_cfg(struct sti_struct *sti, unsigned long rom_address,
416 struct sti_glob_cfg *glob_cfg;
417 struct sti_glob_cfg_ext *glob_cfg_ext;
422 if (sti->sti_mem_request < 256)
423 sti->sti_mem_request = 256; /* STI default */
425 size = sizeof(struct sti_all_data) + sti->sti_mem_request - 256;
427 sti->sti_data = kzalloc(size, STI_LOWMEM);
431 glob_cfg = &sti->sti_data->glob_cfg;
432 glob_cfg_ext = &sti->sti_data->glob_cfg_ext;
433 save_addr = &sti->sti_data->save_addr;
434 sti_mem_addr = &sti->sti_data->sti_mem_addr;
436 glob_cfg->ext_ptr = STI_PTR(glob_cfg_ext);
437 glob_cfg->save_addr = STI_PTR(save_addr);
438 for (i=0; i<8; i++) {
439 unsigned long newhpa, len;
442 unsigned char offs = sti->rm_entry[i];
446 if (offs != PCI_ROM_ADDRESS &&
447 (offs < PCI_BASE_ADDRESS_0 ||
448 offs > PCI_BASE_ADDRESS_5)) {
449 pr_warn("STI pci region mapping for region %d (%02x) can't be mapped\n",
453 newhpa = pci_resource_start (sti->pd, (offs - PCI_BASE_ADDRESS_0) / 4);
455 newhpa = (i == 0) ? rom_address : hpa;
457 sti->regions_phys[i] =
458 REGION_OFFSET_TO_PHYS(sti->regions[i], newhpa);
460 len = sti->regions[i].region_desc.length * 4096;
462 glob_cfg->region_ptrs[i] = sti->regions_phys[i];
464 pr_debug("region #%d: phys %08lx, region_ptr %08x, len=%lukB, "
465 "btlb=%d, sysonly=%d, cache=%d, last=%d\n",
466 i, sti->regions_phys[i], glob_cfg->region_ptrs[i],
468 sti->regions[i].region_desc.btlb,
469 sti->regions[i].region_desc.sys_only,
470 sti->regions[i].region_desc.cache,
471 sti->regions[i].region_desc.last);
473 /* last entry reached ? */
474 if (sti->regions[i].region_desc.last)
478 if (++i<8 && sti->regions[i].region)
479 pr_warn("future ptr (0x%8x) not yet supported !\n",
480 sti->regions[i].region);
482 glob_cfg_ext->sti_mem_addr = STI_PTR(sti_mem_addr);
484 sti->glob_cfg = glob_cfg;
489 #ifdef CONFIG_FONT_SUPPORT
490 static struct sti_cooked_font *
491 sti_select_fbfont(struct sti_cooked_rom *cooked_rom, const char *fbfont_name)
493 const struct font_desc *fbfont = NULL;
494 unsigned int size, bpc;
496 struct sti_rom_font *nf;
497 struct sti_cooked_font *cooked_font;
499 if (fbfont_name && strlen(fbfont_name))
500 fbfont = find_font(fbfont_name);
502 fbfont = get_default_font(1024,768, ~(u32)0, ~(u32)0);
506 pr_info("STI selected %ux%u framebuffer font %s for sticon\n",
507 fbfont->width, fbfont->height, fbfont->name);
509 bpc = ((fbfont->width+7)/8) * fbfont->height;
510 size = bpc * fbfont->charcount;
511 size += sizeof(struct sti_rom_font);
513 nf = kzalloc(size, STI_LOWMEM);
518 nf->last_char = fbfont->charcount - 1;
519 nf->width = fbfont->width;
520 nf->height = fbfont->height;
521 nf->font_type = STI_FONT_HPROMAN8;
522 nf->bytes_per_char = bpc;
524 nf->underline_height = 1;
525 nf->underline_pos = fbfont->height - nf->underline_height;
528 dest += sizeof(struct sti_rom_font);
529 memcpy(dest, fbfont->data, bpc * fbfont->charcount);
531 cooked_font = kzalloc(sizeof(*cooked_font), GFP_KERNEL);
537 cooked_font->raw = nf;
538 cooked_font->raw_ptr = nf;
539 cooked_font->next_font = NULL;
541 cooked_rom->font_start = cooked_font;
546 static struct sti_cooked_font *
547 sti_select_fbfont(struct sti_cooked_rom *cooked_rom, const char *fbfont_name)
553 static int sti_search_font(struct sti_cooked_rom *rom, int height, int width)
555 struct sti_cooked_font *font;
558 for (font = rom->font_start; font; font = font->next_font, i++) {
559 if ((font->raw->width == width) &&
560 (font->raw->height == height))
566 static struct sti_cooked_font *sti_select_font(struct sti_cooked_rom *rom)
568 struct sti_cooked_font *font;
571 /* check for framebuffer-font first */
573 font = sti_select_fbfont(rom, font_name);
578 if (font_width && font_height)
579 font_index = sti_search_font(rom,
580 font_height, font_width);
582 for (font = rom->font_start, i = font_index - 1;
584 font = font->next_font, i--);
589 return rom->font_start;
593 static void sti_dump_rom(struct sti_struct *sti)
595 struct sti_rom *rom = sti->rom->raw;
596 struct sti_cooked_font *font_start;
599 pr_info(" id %04x-%04x, conforms to spec rev. %d.%02x\n",
603 rom->revno[0] & 0x0f);
604 pr_debug(" supports %d monitors\n", rom->num_mons);
605 pr_debug(" font start %08x\n", rom->font_start);
606 pr_debug(" region list %08x\n", rom->region_list);
607 pr_debug(" init_graph %08x\n", rom->init_graph);
608 pr_debug(" bus support %02x\n", rom->bus_support);
609 pr_debug(" ext bus support %02x\n", rom->ext_bus_support);
610 pr_debug(" alternate code type %d\n", rom->alt_code_type);
612 font_start = sti->rom->font_start;
615 struct sti_rom_font *f = font_start->raw;
617 pr_info(" built-in font #%d: size %dx%d, chars %d-%d, bpc %d\n", ++nr,
619 f->first_char, f->last_char, f->bytes_per_char);
620 font_start = font_start->next_font;
625 static int sti_cook_fonts(struct sti_cooked_rom *cooked_rom,
626 struct sti_rom *raw_rom)
628 struct sti_rom_font *raw_font, *font_start;
629 struct sti_cooked_font *cooked_font;
631 cooked_font = kzalloc(sizeof(*cooked_font), GFP_KERNEL);
635 cooked_rom->font_start = cooked_font;
637 raw_font = ((void *)raw_rom) + (raw_rom->font_start);
639 font_start = raw_font;
640 cooked_font->raw = raw_font;
642 while (raw_font->next_font) {
643 raw_font = ((void *)font_start) + (raw_font->next_font);
645 cooked_font->next_font = kzalloc(sizeof(*cooked_font), GFP_KERNEL);
646 if (!cooked_font->next_font)
649 cooked_font = cooked_font->next_font;
651 cooked_font->raw = raw_font;
654 cooked_font->next_font = NULL;
658 #define BMODE_RELOCATE(offset) offset = (offset) / 4;
659 #define BMODE_LAST_ADDR_OFFS 0x50
661 void sti_font_convert_bytemode(struct sti_struct *sti, struct sti_cooked_font *f)
663 unsigned char *n, *p, *q;
664 int size = f->raw->bytes_per_char * (f->raw->last_char + 1) + sizeof(struct sti_rom_font);
665 struct sti_rom_font *old_font;
670 old_font = f->raw_ptr;
671 n = kcalloc(4, size, STI_LOWMEM);
676 q = (unsigned char *) f->raw;
681 /* store new ptr to byte-mode font and delete old font */
682 f->raw = (struct sti_rom_font *) (n + 3);
685 EXPORT_SYMBOL(sti_font_convert_bytemode);
687 static void sti_bmode_rom_copy(unsigned long base, unsigned long count,
690 unsigned long dest_start = (unsigned long) dest;
694 *(u8 *)dest = gsc_readl(base);
699 sti_flush(dest_start, (unsigned long)dest);
702 static struct sti_rom *sti_get_bmode_rom (unsigned long address)
706 struct sti_rom_font *raw_font, *font_start;
708 sti_bmode_rom_copy(address + BMODE_LAST_ADDR_OFFS, sizeof(size), &size);
711 raw = kmalloc(size, STI_LOWMEM);
713 sti_bmode_rom_copy(address, size, raw);
714 memmove (&raw->res004, &raw->type[0], 0x3c);
715 raw->type[3] = raw->res004;
717 BMODE_RELOCATE (raw->region_list);
718 BMODE_RELOCATE (raw->font_start);
720 BMODE_RELOCATE (raw->init_graph);
721 BMODE_RELOCATE (raw->state_mgmt);
722 BMODE_RELOCATE (raw->font_unpmv);
723 BMODE_RELOCATE (raw->block_move);
724 BMODE_RELOCATE (raw->inq_conf);
726 raw_font = ((void *)raw) + raw->font_start;
727 font_start = raw_font;
729 while (raw_font->next_font) {
730 BMODE_RELOCATE (raw_font->next_font);
731 raw_font = ((void *)font_start) + raw_font->next_font;
737 static struct sti_rom *sti_get_wmode_rom(unsigned long address)
742 /* read the ROM size directly from the struct in ROM */
743 size = gsc_readl(address + offsetof(struct sti_rom,last_addr));
745 raw = kmalloc(size, STI_LOWMEM);
747 sti_rom_copy(address, size, raw);
752 static int sti_read_rom(int wordmode, struct sti_struct *sti,
753 unsigned long address)
755 struct sti_cooked_rom *cooked;
756 struct sti_rom *raw = NULL;
759 cooked = kmalloc(sizeof *cooked, GFP_KERNEL);
764 raw = sti_get_wmode_rom (address);
766 raw = sti_get_bmode_rom (address);
771 if (!sti_cook_fonts(cooked, raw)) {
772 pr_warn("No font found for STI at %08lx\n", address);
776 if (raw->region_list)
777 memcpy(sti->regions, ((void *)raw)+raw->region_list, sizeof(sti->regions));
779 address = (unsigned long) STI_PTR(raw);
781 pr_info("STI %s ROM supports 32 %sbit firmware functions.\n",
782 wordmode ? "word mode" : "byte mode",
783 raw->alt_code_type == ALT_CODE_TYPE_PA_RISC_64
786 sti->font_unpmv = address + (raw->font_unpmv & 0x03ffffff);
787 sti->block_move = address + (raw->block_move & 0x03ffffff);
788 sti->init_graph = address + (raw->init_graph & 0x03ffffff);
789 sti->inq_conf = address + (raw->inq_conf & 0x03ffffff);
795 sti->wordmode = wordmode;
796 sti->font = sti_select_font(sti->rom);
797 sti->font->width = sti->font->raw->width;
798 sti->font->height = sti->font->raw->height;
799 sti_font_convert_bytemode(sti, sti->font);
801 sti->sti_mem_request = raw->sti_mem_req;
802 sti->graphics_id[0] = raw->graphics_id[0];
803 sti->graphics_id[1] = raw->graphics_id[1];
805 /* check if the ROM routines in this card are compatible */
806 if (wordmode || sti->graphics_id[1] != 0x09A02587)
809 revno = (raw->revno[0] << 8) | raw->revno[1];
811 switch (sti->graphics_id[0]) {
813 /* HyperA or HyperB ? */
814 if (revno == 0x8408 || revno == 0x840b)
815 goto msg_not_supported;
819 goto msg_not_supported;
821 case CRT_ID_THUNDER2:
823 goto msg_not_supported;
829 pr_warn("Sorry, this GSC/STI card is not yet supported.\n");
830 pr_warn("Please see https://parisc.wiki.kernel.org/"
831 "index.php/Graphics_howto for more info.\n");
839 static struct sti_struct *sti_try_rom_generic(unsigned long address,
843 struct sti_struct *sti;
847 if (num_sti_roms >= MAX_STI_ROMS) {
848 pr_warn("maximum number of STI ROMS reached !\n");
852 sti = kzalloc(sizeof(*sti), GFP_KERNEL);
856 spin_lock_init(&sti->lock);
859 /* if we can't read the ROM, bail out early. Not being able
860 * to read the hpa is okay, for romless sti */
861 if (pdc_add_valid(address))
864 sig = gsc_readl(address);
866 /* check for a PCI ROM structure */
867 if ((le32_to_cpu(sig)==0xaa55)) {
868 unsigned int i, rm_offset;
870 i = gsc_readl(address+0x04);
872 /* The ROM could have multiple architecture
873 * dependent images (e.g. i386, parisc,...) */
874 pr_warn("PCI ROM is not a STI ROM type image (0x%8x)\n", i);
880 i = gsc_readl(address+0x0c);
881 pr_debug("PCI ROM size (from header) = %d kB\n",
882 le16_to_cpu(i>>16)*512/1024);
883 rm_offset = le16_to_cpu(i & 0xffff);
885 /* read 16 bytes from the pci region mapper array */
886 rm = (u32*) &sti->rm_entry;
887 *rm++ = gsc_readl(address+rm_offset+0x00);
888 *rm++ = gsc_readl(address+rm_offset+0x04);
889 *rm++ = gsc_readl(address+rm_offset+0x08);
890 *rm++ = gsc_readl(address+rm_offset+0x0c);
893 address += le32_to_cpu(gsc_readl(address+8));
894 pr_debug("sig %04x, PCI STI ROM at %08lx\n", sig, address);
900 if ((sig & 0xff) == 0x01) {
901 pr_debug(" byte mode ROM at %08lx, hpa at %08lx\n",
903 ok = sti_read_rom(0, sti, address);
906 if ((sig & 0xffff) == 0x0303) {
907 pr_debug(" word mode ROM at %08lx, hpa at %08lx\n",
909 ok = sti_read_rom(1, sti, address);
915 if (sti_init_glob_cfg(sti, address, hpa))
916 goto out_err; /* not enough memory */
918 /* disable STI PCI ROM. ROM and card RAM overlap and
919 * leaving it enabled would force HPMCs
922 unsigned long rom_base;
923 rom_base = pci_resource_start(sti->pd, PCI_ROM_RESOURCE);
924 pci_write_config_dword(sti->pd, PCI_ROM_ADDRESS, rom_base & ~PCI_ROM_ADDRESS_ENABLE);
925 pr_debug("STI PCI ROM disabled\n");
928 if (sti_init_graph(sti))
932 sti_dump_globcfg(sti->glob_cfg, sti->sti_mem_request);
933 sti_dump_outptr(sti);
935 pr_info(" graphics card name: %s\n",
936 sti->sti_data->inq_outptr.dev_name);
938 sti_roms[num_sti_roms] = sti;
948 static void sticore_check_for_default_sti(struct sti_struct *sti, char *path)
950 if (strcmp (path, default_sti_path) == 0)
955 * on newer systems PDC gives the address of the ROM
956 * in the additional address field addr[1] while on
957 * older Systems the PDC stores it in page0->proc_sti
959 static int __init sticore_pa_init(struct parisc_device *dev)
962 struct sti_struct *sti = NULL;
963 int hpa = dev->hpa.start;
965 if (dev->num_addrs && dev->addr[0])
966 sti = sti_try_rom_generic(dev->addr[0], hpa, NULL);
968 sti = sti_try_rom_generic(hpa, hpa, NULL);
970 sti = sti_try_rom_generic(PAGE0->proc_sti, hpa, NULL);
974 print_pa_hwpath(dev, pa_path);
975 sticore_check_for_default_sti(sti, pa_path);
980 static int sticore_pci_init(struct pci_dev *pd, const struct pci_device_id *ent)
983 unsigned long fb_base, rom_base;
984 unsigned int fb_len, rom_len;
986 struct sti_struct *sti;
988 err = pci_enable_device(pd);
990 dev_err(&pd->dev, "Cannot enable PCI device\n");
994 fb_base = pci_resource_start(pd, 0);
995 fb_len = pci_resource_len(pd, 0);
996 rom_base = pci_resource_start(pd, PCI_ROM_RESOURCE);
997 rom_len = pci_resource_len(pd, PCI_ROM_RESOURCE);
999 pci_write_config_dword(pd, PCI_ROM_ADDRESS, rom_base | PCI_ROM_ADDRESS_ENABLE);
1000 pr_debug("STI PCI ROM enabled at 0x%08lx\n", rom_base);
1003 pr_info("STI PCI graphic ROM found at %08lx (%u kB), fb at %08lx (%u MB)\n",
1004 rom_base, rom_len/1024, fb_base, fb_len/1024/1024);
1006 pr_debug("Trying PCI STI ROM at %08lx, PCI hpa at %08lx\n",
1009 sti = sti_try_rom_generic(rom_base, fb_base, pd);
1012 print_pci_hwpath(pd, pa_path);
1013 sticore_check_for_default_sti(sti, pa_path);
1017 pr_warn("Unable to handle STI device '%s'\n", pci_name(pd));
1020 #endif /* CONFIG_PCI */
1026 static void __exit sticore_pci_remove(struct pci_dev *pd)
1032 static struct pci_device_id sti_pci_tbl[] = {
1033 { PCI_DEVICE(PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_VISUALIZE_EG) },
1034 { PCI_DEVICE(PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_VISUALIZE_FX6) },
1035 { PCI_DEVICE(PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_VISUALIZE_FX4) },
1036 { PCI_DEVICE(PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_VISUALIZE_FX2) },
1037 { PCI_DEVICE(PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_VISUALIZE_FXE) },
1038 { 0, } /* terminate list */
1040 MODULE_DEVICE_TABLE(pci, sti_pci_tbl);
1042 static struct pci_driver pci_sti_driver = {
1044 .id_table = sti_pci_tbl,
1045 .probe = sticore_pci_init,
1046 .remove = __exit_p(sticore_pci_remove),
1049 static struct parisc_device_id sti_pa_tbl[] = {
1050 { HPHW_FIO, HVERSION_REV_ANY_ID, HVERSION_ANY_ID, 0x00077 },
1051 { HPHW_FIO, HVERSION_REV_ANY_ID, HVERSION_ANY_ID, 0x00085 },
1054 MODULE_DEVICE_TABLE(parisc, sti_pa_tbl);
1056 static struct parisc_driver pa_sti_driver __refdata = {
1058 .id_table = sti_pa_tbl,
1059 .probe = sticore_pa_init,
1064 * sti_init_roms() - detects all STI ROMs and stores them in sti_roms[]
1067 static int sticore_initialized __read_mostly;
1069 static void sti_init_roms(void)
1071 if (sticore_initialized)
1074 sticore_initialized = 1;
1076 pr_info("STI GSC/PCI core graphics driver "
1077 STI_DRIVERVERSION "\n");
1079 /* Register drivers for native & PCI cards */
1080 register_parisc_driver(&pa_sti_driver);
1081 WARN_ON(pci_register_driver(&pci_sti_driver));
1083 /* if we didn't find the given default sti, take the first one */
1085 default_sti = sti_roms[0];
1090 * index = 0 gives default sti
1091 * index > 0 gives other stis in detection order
1093 struct sti_struct * sti_get_rom(unsigned int index)
1095 if (!sticore_initialized)
1101 if (index > num_sti_roms)
1104 return sti_roms[index-1];
1106 EXPORT_SYMBOL(sti_get_rom);
1109 int sti_call(const struct sti_struct *sti, unsigned long func,
1110 const void *flags, void *inptr, void *outptr,
1111 struct sti_glob_cfg *glob_cfg)
1113 unsigned long _flags = STI_PTR(flags);
1114 unsigned long _inptr = STI_PTR(inptr);
1115 unsigned long _outptr = STI_PTR(outptr);
1116 unsigned long _glob_cfg = STI_PTR(glob_cfg);
1120 /* Check for overflow when using 32bit STI on 64bit kernel. */
1121 if (WARN_ONCE(_flags>>32 || _inptr>>32 || _outptr>>32 || _glob_cfg>>32,
1122 "Out of 32bit-range pointers!"))
1126 ret = pdc_sti_call(func, _flags, _inptr, _outptr, _glob_cfg);
1131 /* check if given fb_info is the primary device */
1132 int fb_is_primary_device(struct fb_info *info)
1134 struct sti_struct *sti;
1136 sti = sti_get_rom(0);
1138 /* if no built-in graphics card found, allow any fb driver as default */
1142 /* return true if it's the default built-in framebuffer driver */
1143 return (sti->info == info);
1145 EXPORT_SYMBOL(fb_is_primary_device);
1147 MODULE_AUTHOR("Philipp Rumpf, Helge Deller, Thomas Bogendoerfer");
1148 MODULE_DESCRIPTION("Core STI driver for HP's NGLE series graphics cards in HP PARISC machines");
1149 MODULE_LICENSE("GPL v2");