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>
34 #include "../fbdev/sticore.h"
36 #define STI_DRIVERVERSION "Version 0.9b"
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;
45 /* The colour indices used by STI are
55 * So we have the same colours as VGA (basically one bit each for R, G, B),
56 * but have to translate them, anyway. */
58 static const u8 col_trans[8] = {
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)
67 static const struct sti_init_flags default_init_flags = {
77 static int sti_init_graph(struct sti_struct *sti)
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;
85 spin_lock_irqsave(&sti->lock, flags);
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);
93 ret = sti_call(sti, sti->init_graph, &default_init_flags, inptr,
94 outptr, sti->glob_cfg);
97 sti->text_planes = outptr->text_planes;
100 spin_unlock_irqrestore(&sti->lock, flags);
103 pr_err("STI init_graph failed (ret %d, errno %d)\n", ret, err);
110 static const struct sti_conf_flags default_conf_flags = {
114 static void sti_inq_conf(struct sti_struct *sti)
116 struct sti_conf_inptr *inptr = &sti->sti_data->inq_inptr;
117 struct sti_conf_outptr *outptr = &sti->sti_data->inq_outptr;
121 outptr->ext_ptr = STI_PTR(&sti->sti_data->inq_outptr_ext);
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);
132 static const struct sti_font_flags default_font_flags = {
138 sti_putc(struct sti_struct *sti, int c, int y, int x,
139 struct sti_cooked_font *font)
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,
150 struct sti_font_outptr *outptr = &sti->sti_data->font_outptr;
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);
163 static const struct sti_blkmv_flags clear_blkmv_flags = {
170 sti_set(struct sti_struct *sti, int src_y, int src_x,
171 int height, int width, u8 color)
173 struct sti_blkmv_inptr *inptr = &sti->sti_data->blkmv_inptr;
174 struct sti_blkmv_inptr inptr_default = {
184 struct sti_blkmv_outptr *outptr = &sti->sti_data->blkmv_outptr;
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);
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)
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,
212 struct sti_blkmv_outptr *outptr = &sti->sti_data->blkmv_outptr;
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);
225 static const struct sti_blkmv_flags default_blkmv_flags = {
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)
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,
243 struct sti_blkmv_outptr *outptr = &sti->sti_data->blkmv_outptr;
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);
257 static void sti_flush(unsigned long start, unsigned long end)
259 flush_icache_range(start, end);
262 static void sti_rom_copy(unsigned long base, unsigned long count, void *dest)
264 unsigned long dest_start = (unsigned long) dest;
266 /* this still needs to be revisited (see arch/parisc/mm/init.c:246) ! */
269 *(u32 *)dest = gsc_readl(base);
275 *(u8 *)dest = gsc_readb(base);
280 sti_flush(dest_start, (unsigned long)dest);
286 static char default_sti_path[21] __read_mostly;
289 static int __init sti_setup(char *str)
292 strlcpy (default_sti_path, str, sizeof (default_sti_path));
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
303 __setup("sti=", sti_setup);
308 static char *font_name;
309 static int font_index,
313 static int sti_font_setup(char *str)
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..
323 if (*str >= '0' && *str <= '9') {
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);
330 font_index = simple_strtoul(str, NULL, 0);
333 font_name = str; /* fb font name */
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.
357 __setup("sti_font=", sti_font_setup);
362 static void sti_dump_globcfg(struct sti_glob_cfg *glob_cfg,
363 unsigned int sti_mem_request)
365 struct sti_glob_cfg_ext *cfg;
367 pr_debug("%d text planes\n"
368 "%4d x %4d screen resolution\n"
369 "%4d x %4d offscreen\n"
371 "regions at %08x %08x %08x %08x\n"
372 "regions at %08x %08x %08x %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],
384 glob_cfg->save_addr);
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"
392 "sti_mem_addr %08x (size=%d bytes)\n",
397 cfg->sti_mem_addr, sti_mem_request);
400 static void sti_dump_outptr(struct sti_struct *sti)
402 pr_debug("%d bits per pixel\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);
412 static int sti_init_glob_cfg(struct sti_struct *sti, unsigned long rom_address,
415 struct sti_glob_cfg *glob_cfg;
416 struct sti_glob_cfg_ext *glob_cfg_ext;
421 if (sti->sti_mem_request < 256)
422 sti->sti_mem_request = 256; /* STI default */
424 size = sizeof(struct sti_all_data) + sti->sti_mem_request - 256;
426 sti->sti_data = kzalloc(size, STI_LOWMEM);
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;
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;
441 unsigned char offs = sti->rm_entry[i];
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",
452 newhpa = pci_resource_start (sti->pd, (offs - PCI_BASE_ADDRESS_0) / 4);
454 newhpa = (i == 0) ? rom_address : hpa;
456 sti->regions_phys[i] =
457 REGION_OFFSET_TO_PHYS(sti->regions[i], newhpa);
459 len = sti->regions[i].region_desc.length * 4096;
461 glob_cfg->region_ptrs[i] = sti->regions_phys[i];
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],
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);
472 /* last entry reached ? */
473 if (sti->regions[i].region_desc.last)
477 if (++i<8 && sti->regions[i].region)
478 pr_warn("future ptr (0x%8x) not yet supported !\n",
479 sti->regions[i].region);
481 glob_cfg_ext->sti_mem_addr = STI_PTR(sti_mem_addr);
483 sti->glob_cfg = glob_cfg;
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)
492 const struct font_desc *fbfont = NULL;
493 unsigned int size, bpc;
495 struct sti_rom_font *nf;
496 struct sti_cooked_font *cooked_font;
498 if (fbfont_name && strlen(fbfont_name))
499 fbfont = find_font(fbfont_name);
501 fbfont = get_default_font(1024,768, ~(u32)0, ~(u32)0);
505 pr_info("STI selected %ux%u framebuffer font %s for sticon\n",
506 fbfont->width, fbfont->height, fbfont->name);
508 bpc = ((fbfont->width+7)/8) * fbfont->height;
509 size = bpc * fbfont->charcount;
510 size += sizeof(struct sti_rom_font);
512 nf = kzalloc(size, STI_LOWMEM);
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;
523 nf->underline_height = 1;
524 nf->underline_pos = fbfont->height - nf->underline_height;
527 dest += sizeof(struct sti_rom_font);
528 memcpy(dest, fbfont->data, bpc * fbfont->charcount);
530 cooked_font = kzalloc(sizeof(*cooked_font), GFP_KERNEL);
536 cooked_font->raw = nf;
537 cooked_font->raw_ptr = nf;
538 cooked_font->next_font = NULL;
540 cooked_rom->font_start = cooked_font;
545 static struct sti_cooked_font *
546 sti_select_fbfont(struct sti_cooked_rom *cooked_rom, const char *fbfont_name)
552 static void sti_dump_font(struct sti_cooked_font *font)
555 unsigned char *p = (unsigned char *)font->raw;
558 p += sizeof(struct sti_rom_font);
559 pr_debug(" w %d h %d bpc %d\n", font->width, font->height,
560 font->raw->bytes_per_char);
562 for (n = 0; n < 256 * font->raw->bytes_per_char; n += 16, p += 16) {
563 pr_debug(" 0x%02x, 0x%02x, 0x%02x, 0x%02x, 0x%02x, 0x%02x,"
564 " 0x%02x, 0x%02x, 0x%02x, 0x%02x, 0x%02x, 0x%02x,"
565 " 0x%02x, 0x%02x, 0x%02x, 0x%02x,\n",
566 p[0], p[1], p[2], p[3], p[4], p[5], p[6], p[7], p[8],
567 p[9], p[10], p[11], p[12], p[13], p[14], p[15]);
572 static int sti_search_font(struct sti_cooked_rom *rom, int height, int width)
574 struct sti_cooked_font *font;
577 for (font = rom->font_start; font; font = font->next_font, i++) {
578 if ((font->raw->width == width) &&
579 (font->raw->height == height))
585 static struct sti_cooked_font *sti_select_font(struct sti_cooked_rom *rom)
587 struct sti_cooked_font *font;
590 /* check for framebuffer-font first */
592 font = sti_select_fbfont(rom, font_name);
597 if (font_width && font_height)
598 font_index = sti_search_font(rom,
599 font_height, font_width);
601 for (font = rom->font_start, i = font_index - 1;
603 font = font->next_font, i--);
608 return rom->font_start;
612 static void sti_dump_rom(struct sti_struct *sti)
614 struct sti_rom *rom = sti->rom->raw;
615 struct sti_cooked_font *font_start;
618 pr_info(" id %04x-%04x, conforms to spec rev. %d.%02x\n",
622 rom->revno[0] & 0x0f);
623 pr_debug(" supports %d monitors\n", rom->num_mons);
624 pr_debug(" font start %08x\n", rom->font_start);
625 pr_debug(" region list %08x\n", rom->region_list);
626 pr_debug(" init_graph %08x\n", rom->init_graph);
627 pr_debug(" bus support %02x\n", rom->bus_support);
628 pr_debug(" ext bus support %02x\n", rom->ext_bus_support);
629 pr_debug(" alternate code type %d\n", rom->alt_code_type);
631 font_start = sti->rom->font_start;
634 struct sti_rom_font *f = font_start->raw;
636 pr_info(" built-in font #%d: size %dx%d, chars %d-%d, bpc %d\n", ++nr,
638 f->first_char, f->last_char, f->bytes_per_char);
639 font_start = font_start->next_font;
644 static int sti_cook_fonts(struct sti_cooked_rom *cooked_rom,
645 struct sti_rom *raw_rom)
647 struct sti_rom_font *raw_font, *font_start;
648 struct sti_cooked_font *cooked_font;
650 cooked_font = kzalloc(sizeof(*cooked_font), GFP_KERNEL);
654 cooked_rom->font_start = cooked_font;
656 raw_font = ((void *)raw_rom) + (raw_rom->font_start);
658 font_start = raw_font;
659 cooked_font->raw = raw_font;
661 while (raw_font->next_font) {
662 raw_font = ((void *)font_start) + (raw_font->next_font);
664 cooked_font->next_font = kzalloc(sizeof(*cooked_font), GFP_KERNEL);
665 if (!cooked_font->next_font)
668 cooked_font = cooked_font->next_font;
670 cooked_font->raw = raw_font;
673 cooked_font->next_font = NULL;
677 #define BMODE_RELOCATE(offset) offset = (offset) / 4;
678 #define BMODE_LAST_ADDR_OFFS 0x50
680 void sti_font_convert_bytemode(struct sti_struct *sti, struct sti_cooked_font *f)
682 unsigned char *n, *p, *q;
683 int size = f->raw->bytes_per_char * (f->raw->last_char + 1) + sizeof(struct sti_rom_font);
684 struct sti_rom_font *old_font;
689 old_font = f->raw_ptr;
690 n = kcalloc(4, size, STI_LOWMEM);
695 q = (unsigned char *) f->raw;
700 /* store new ptr to byte-mode font and delete old font */
701 f->raw = (struct sti_rom_font *) (n + 3);
704 EXPORT_SYMBOL(sti_font_convert_bytemode);
706 static void sti_bmode_rom_copy(unsigned long base, unsigned long count,
709 unsigned long dest_start = (unsigned long) dest;
713 *(u8 *)dest = gsc_readl(base);
718 sti_flush(dest_start, (unsigned long)dest);
721 static struct sti_rom *sti_get_bmode_rom (unsigned long address)
725 struct sti_rom_font *raw_font, *font_start;
727 sti_bmode_rom_copy(address + BMODE_LAST_ADDR_OFFS, sizeof(size), &size);
730 raw = kmalloc(size, STI_LOWMEM);
732 sti_bmode_rom_copy(address, size, raw);
733 memmove (&raw->res004, &raw->type[0], 0x3c);
734 raw->type[3] = raw->res004;
736 BMODE_RELOCATE (raw->region_list);
737 BMODE_RELOCATE (raw->font_start);
739 BMODE_RELOCATE (raw->init_graph);
740 BMODE_RELOCATE (raw->state_mgmt);
741 BMODE_RELOCATE (raw->font_unpmv);
742 BMODE_RELOCATE (raw->block_move);
743 BMODE_RELOCATE (raw->inq_conf);
745 raw_font = ((void *)raw) + raw->font_start;
746 font_start = raw_font;
748 while (raw_font->next_font) {
749 BMODE_RELOCATE (raw_font->next_font);
750 raw_font = ((void *)font_start) + raw_font->next_font;
756 static struct sti_rom *sti_get_wmode_rom(unsigned long address)
761 /* read the ROM size directly from the struct in ROM */
762 size = gsc_readl(address + offsetof(struct sti_rom,last_addr));
764 raw = kmalloc(size, STI_LOWMEM);
766 sti_rom_copy(address, size, raw);
771 static int sti_read_rom(int wordmode, struct sti_struct *sti,
772 unsigned long address)
774 struct sti_cooked_rom *cooked;
775 struct sti_rom *raw = NULL;
778 cooked = kmalloc(sizeof *cooked, GFP_KERNEL);
783 raw = sti_get_wmode_rom (address);
785 raw = sti_get_bmode_rom (address);
790 if (!sti_cook_fonts(cooked, raw)) {
791 pr_warn("No font found for STI at %08lx\n", address);
795 if (raw->region_list)
796 memcpy(sti->regions, ((void *)raw)+raw->region_list, sizeof(sti->regions));
798 address = (unsigned long) STI_PTR(raw);
800 pr_info("STI %s ROM supports 32 %sbit firmware functions.\n",
801 wordmode ? "word mode" : "byte mode",
802 raw->alt_code_type == ALT_CODE_TYPE_PA_RISC_64
805 sti->font_unpmv = address + (raw->font_unpmv & 0x03ffffff);
806 sti->block_move = address + (raw->block_move & 0x03ffffff);
807 sti->init_graph = address + (raw->init_graph & 0x03ffffff);
808 sti->inq_conf = address + (raw->inq_conf & 0x03ffffff);
814 sti->wordmode = wordmode;
815 sti->font = sti_select_font(sti->rom);
816 sti->font->width = sti->font->raw->width;
817 sti->font->height = sti->font->raw->height;
818 sti_font_convert_bytemode(sti, sti->font);
819 sti_dump_font(sti->font);
821 sti->sti_mem_request = raw->sti_mem_req;
822 sti->graphics_id[0] = raw->graphics_id[0];
823 sti->graphics_id[1] = raw->graphics_id[1];
825 /* check if the ROM routines in this card are compatible */
826 if (wordmode || sti->graphics_id[1] != 0x09A02587)
829 revno = (raw->revno[0] << 8) | raw->revno[1];
831 switch (sti->graphics_id[0]) {
833 /* HyperA or HyperB ? */
834 if (revno == 0x8408 || revno == 0x840b)
835 goto msg_not_supported;
839 goto msg_not_supported;
841 case CRT_ID_THUNDER2:
843 goto msg_not_supported;
849 pr_warn("Sorry, this GSC/STI card is not yet supported.\n");
850 pr_warn("Please see https://parisc.wiki.kernel.org/"
851 "index.php/Graphics_howto for more info.\n");
859 static struct sti_struct *sti_try_rom_generic(unsigned long address,
863 struct sti_struct *sti;
867 if (num_sti_roms >= MAX_STI_ROMS) {
868 pr_warn("maximum number of STI ROMS reached !\n");
872 sti = kzalloc(sizeof(*sti), GFP_KERNEL);
876 spin_lock_init(&sti->lock);
879 /* if we can't read the ROM, bail out early. Not being able
880 * to read the hpa is okay, for romless sti */
881 if (pdc_add_valid(address))
884 sig = gsc_readl(address);
886 /* check for a PCI ROM structure */
887 if ((le32_to_cpu(sig)==0xaa55)) {
888 unsigned int i, rm_offset;
890 i = gsc_readl(address+0x04);
892 /* The ROM could have multiple architecture
893 * dependent images (e.g. i386, parisc,...) */
894 pr_warn("PCI ROM is not a STI ROM type image (0x%8x)\n", i);
900 i = gsc_readl(address+0x0c);
901 pr_debug("PCI ROM size (from header) = %d kB\n",
902 le16_to_cpu(i>>16)*512/1024);
903 rm_offset = le16_to_cpu(i & 0xffff);
905 /* read 16 bytes from the pci region mapper array */
906 rm = (u32*) &sti->rm_entry;
907 *rm++ = gsc_readl(address+rm_offset+0x00);
908 *rm++ = gsc_readl(address+rm_offset+0x04);
909 *rm++ = gsc_readl(address+rm_offset+0x08);
910 *rm++ = gsc_readl(address+rm_offset+0x0c);
913 address += le32_to_cpu(gsc_readl(address+8));
914 pr_debug("sig %04x, PCI STI ROM at %08lx\n", sig, address);
920 if ((sig & 0xff) == 0x01) {
921 pr_debug(" byte mode ROM at %08lx, hpa at %08lx\n",
923 ok = sti_read_rom(0, sti, address);
926 if ((sig & 0xffff) == 0x0303) {
927 pr_debug(" word mode ROM at %08lx, hpa at %08lx\n",
929 ok = sti_read_rom(1, sti, address);
935 if (sti_init_glob_cfg(sti, address, hpa))
936 goto out_err; /* not enough memory */
938 /* disable STI PCI ROM. ROM and card RAM overlap and
939 * leaving it enabled would force HPMCs
942 unsigned long rom_base;
943 rom_base = pci_resource_start(sti->pd, PCI_ROM_RESOURCE);
944 pci_write_config_dword(sti->pd, PCI_ROM_ADDRESS, rom_base & ~PCI_ROM_ADDRESS_ENABLE);
945 pr_debug("STI PCI ROM disabled\n");
948 if (sti_init_graph(sti))
952 sti_dump_globcfg(sti->glob_cfg, sti->sti_mem_request);
953 sti_dump_outptr(sti);
955 pr_info(" graphics card name: %s\n",
956 sti->sti_data->inq_outptr.dev_name);
958 sti_roms[num_sti_roms] = sti;
968 static void sticore_check_for_default_sti(struct sti_struct *sti, char *path)
970 if (strcmp (path, default_sti_path) == 0)
975 * on newer systems PDC gives the address of the ROM
976 * in the additional address field addr[1] while on
977 * older Systems the PDC stores it in page0->proc_sti
979 static int __init sticore_pa_init(struct parisc_device *dev)
982 struct sti_struct *sti = NULL;
983 int hpa = dev->hpa.start;
985 if (dev->num_addrs && dev->addr[0])
986 sti = sti_try_rom_generic(dev->addr[0], hpa, NULL);
988 sti = sti_try_rom_generic(hpa, hpa, NULL);
990 sti = sti_try_rom_generic(PAGE0->proc_sti, hpa, NULL);
994 print_pa_hwpath(dev, pa_path);
995 sticore_check_for_default_sti(sti, pa_path);
1000 static int sticore_pci_init(struct pci_dev *pd, const struct pci_device_id *ent)
1003 unsigned long fb_base, rom_base;
1004 unsigned int fb_len, rom_len;
1006 struct sti_struct *sti;
1008 err = pci_enable_device(pd);
1010 dev_err(&pd->dev, "Cannot enable PCI device\n");
1014 fb_base = pci_resource_start(pd, 0);
1015 fb_len = pci_resource_len(pd, 0);
1016 rom_base = pci_resource_start(pd, PCI_ROM_RESOURCE);
1017 rom_len = pci_resource_len(pd, PCI_ROM_RESOURCE);
1019 pci_write_config_dword(pd, PCI_ROM_ADDRESS, rom_base | PCI_ROM_ADDRESS_ENABLE);
1020 pr_debug("STI PCI ROM enabled at 0x%08lx\n", rom_base);
1023 pr_info("STI PCI graphic ROM found at %08lx (%u kB), fb at %08lx (%u MB)\n",
1024 rom_base, rom_len/1024, fb_base, fb_len/1024/1024);
1026 pr_debug("Trying PCI STI ROM at %08lx, PCI hpa at %08lx\n",
1029 sti = sti_try_rom_generic(rom_base, fb_base, pd);
1032 print_pci_hwpath(pd, pa_path);
1033 sticore_check_for_default_sti(sti, pa_path);
1037 pr_warn("Unable to handle STI device '%s'\n", pci_name(pd));
1040 #endif /* CONFIG_PCI */
1046 static void __exit sticore_pci_remove(struct pci_dev *pd)
1052 static struct pci_device_id sti_pci_tbl[] = {
1053 { PCI_DEVICE(PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_VISUALIZE_EG) },
1054 { PCI_DEVICE(PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_VISUALIZE_FX6) },
1055 { PCI_DEVICE(PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_VISUALIZE_FX4) },
1056 { PCI_DEVICE(PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_VISUALIZE_FX2) },
1057 { PCI_DEVICE(PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_VISUALIZE_FXE) },
1058 { 0, } /* terminate list */
1060 MODULE_DEVICE_TABLE(pci, sti_pci_tbl);
1062 static struct pci_driver pci_sti_driver = {
1064 .id_table = sti_pci_tbl,
1065 .probe = sticore_pci_init,
1066 .remove = __exit_p(sticore_pci_remove),
1069 static struct parisc_device_id sti_pa_tbl[] = {
1070 { HPHW_FIO, HVERSION_REV_ANY_ID, HVERSION_ANY_ID, 0x00077 },
1071 { HPHW_FIO, HVERSION_REV_ANY_ID, HVERSION_ANY_ID, 0x00085 },
1074 MODULE_DEVICE_TABLE(parisc, sti_pa_tbl);
1076 static struct parisc_driver pa_sti_driver __refdata = {
1078 .id_table = sti_pa_tbl,
1079 .probe = sticore_pa_init,
1084 * sti_init_roms() - detects all STI ROMs and stores them in sti_roms[]
1087 static int sticore_initialized __read_mostly;
1089 static void sti_init_roms(void)
1091 if (sticore_initialized)
1094 sticore_initialized = 1;
1096 pr_info("STI GSC/PCI core graphics driver "
1097 STI_DRIVERVERSION "\n");
1099 /* Register drivers for native & PCI cards */
1100 register_parisc_driver(&pa_sti_driver);
1101 WARN_ON(pci_register_driver(&pci_sti_driver));
1103 /* if we didn't find the given default sti, take the first one */
1105 default_sti = sti_roms[0];
1110 * index = 0 gives default sti
1111 * index > 0 gives other stis in detection order
1113 struct sti_struct * sti_get_rom(unsigned int index)
1115 if (!sticore_initialized)
1121 if (index > num_sti_roms)
1124 return sti_roms[index-1];
1126 EXPORT_SYMBOL(sti_get_rom);
1129 int sti_call(const struct sti_struct *sti, unsigned long func,
1130 const void *flags, void *inptr, void *outptr,
1131 struct sti_glob_cfg *glob_cfg)
1133 unsigned long _flags = STI_PTR(flags);
1134 unsigned long _inptr = STI_PTR(inptr);
1135 unsigned long _outptr = STI_PTR(outptr);
1136 unsigned long _glob_cfg = STI_PTR(glob_cfg);
1140 /* Check for overflow when using 32bit STI on 64bit kernel. */
1141 if (WARN_ONCE(_flags>>32 || _inptr>>32 || _outptr>>32 || _glob_cfg>>32,
1142 "Out of 32bit-range pointers!"))
1146 ret = pdc_sti_call(func, _flags, _inptr, _outptr, _glob_cfg);
1151 MODULE_AUTHOR("Philipp Rumpf, Helge Deller, Thomas Bogendoerfer");
1152 MODULE_DESCRIPTION("Core STI driver for HP's NGLE series graphics cards in HP PARISC machines");
1153 MODULE_LICENSE("GPL v2");