Support tracking and hand-over of aperture ownership. Required
by graphics drivers for firmware-provided framebuffers.
+config STI_CORE
+ bool
+ depends on PARISC
+ help
+ STI refers to the HP "Standard Text Interface" which is a set of
+ BIOS routines contained in a ROM chip in HP PA-RISC based machines.
+
config VIDEO_CMDLINE
bool
# SPDX-License-Identifier: GPL-2.0
obj-$(CONFIG_APERTURE_HELPERS) += aperture.o
+obj-$(CONFIG_STI_CORE) += sticore.o
obj-$(CONFIG_VGASTATE) += vgastate.o
obj-$(CONFIG_VIDEO_CMDLINE) += cmdline.o
obj-$(CONFIG_VIDEO_NOMODESET) += nomodeset.o
depends on PARISC && HAS_IOMEM
select FONT_SUPPORT
select CRC32
+ select STI_CORE
default y
help
The STI console is the builtin display/keyboard on HP-PARISC
obj-$(CONFIG_DUMMY_CONSOLE) += dummycon.o
obj-$(CONFIG_SGI_NEWPORT_CONSOLE) += newport_con.o
-obj-$(CONFIG_STI_CONSOLE) += sticon.o sticore.o
+obj-$(CONFIG_STI_CONSOLE) += sticon.o
obj-$(CONFIG_VGA_CONSOLE) += vgacon.o
obj-$(CONFIG_MDA_CONSOLE) += mdacon.o
-
-obj-$(CONFIG_FB_STI) += sticore.o
#include <asm/io.h>
-#include "../fbdev/sticore.h"
+#include <video/sticore.h>
/* switching to graphics mode */
#define BLANK 0
+++ /dev/null
-// SPDX-License-Identifier: GPL-2.0-only
-/*
- * linux/drivers/video/console/sticore.c -
- * core code for console driver using HP's STI firmware
- *
- * Copyright (C) 2000 Philipp Rumpf <prumpf@tux.org>
- * Copyright (C) 2001-2020 Helge Deller <deller@gmx.de>
- * Copyright (C) 2001-2002 Thomas Bogendoerfer <tsbogend@alpha.franken.de>
- *
- * TODO:
- * - call STI in virtual mode rather than in real mode
- * - screen blanking with state_mgmt() in text mode STI ?
- * - try to make it work on m68k hp workstations ;)
- *
- */
-
-#define pr_fmt(fmt) "%s: " fmt, KBUILD_MODNAME
-
-#include <linux/module.h>
-#include <linux/types.h>
-#include <linux/kernel.h>
-#include <linux/slab.h>
-#include <linux/init.h>
-#include <linux/pci.h>
-#include <linux/font.h>
-
-#include <asm/hardware.h>
-#include <asm/page.h>
-#include <asm/parisc-device.h>
-#include <asm/pdc.h>
-#include <asm/cacheflush.h>
-#include <asm/grfioctl.h>
-#include <asm/fb.h>
-
-#include "../fbdev/sticore.h"
-
-#define STI_DRIVERVERSION "Version 0.9c"
-
-static struct sti_struct *default_sti __read_mostly;
-
-/* number of STI ROMS found and their ptrs to each struct */
-static int num_sti_roms __read_mostly;
-static struct sti_struct *sti_roms[MAX_STI_ROMS] __read_mostly;
-
-
-/* The colour indices used by STI are
- * 0 - Black
- * 1 - White
- * 2 - Red
- * 3 - Yellow/Brown
- * 4 - Green
- * 5 - Cyan
- * 6 - Blue
- * 7 - Magenta
- *
- * So we have the same colours as VGA (basically one bit each for R, G, B),
- * but have to translate them, anyway. */
-
-static const u8 col_trans[8] = {
- 0, 6, 4, 5,
- 2, 7, 3, 1
-};
-
-#define c_fg(sti, c) col_trans[((c>> 8) & 7)]
-#define c_bg(sti, c) col_trans[((c>>11) & 7)]
-#define c_index(sti, c) ((c) & 0xff)
-
-static const struct sti_init_flags default_init_flags = {
- .wait = STI_WAIT,
- .reset = 1,
- .text = 1,
- .nontext = 1,
- .no_chg_bet = 1,
- .no_chg_bei = 1,
- .init_cmap_tx = 1,
-};
-
-static int sti_init_graph(struct sti_struct *sti)
-{
- struct sti_init_inptr *inptr = &sti->sti_data->init_inptr;
- struct sti_init_inptr_ext *inptr_ext = &sti->sti_data->init_inptr_ext;
- struct sti_init_outptr *outptr = &sti->sti_data->init_outptr;
- unsigned long flags;
- int ret, err;
-
- spin_lock_irqsave(&sti->lock, flags);
-
- memset(inptr, 0, sizeof(*inptr));
- inptr->text_planes = 3; /* # of text planes (max 3 for STI) */
- memset(inptr_ext, 0, sizeof(*inptr_ext));
- inptr->ext_ptr = STI_PTR(inptr_ext);
- outptr->errno = 0;
-
- ret = sti_call(sti, sti->init_graph, &default_init_flags, inptr,
- outptr, sti->glob_cfg);
-
- if (ret >= 0)
- sti->text_planes = outptr->text_planes;
- err = outptr->errno;
-
- spin_unlock_irqrestore(&sti->lock, flags);
-
- if (ret < 0) {
- pr_err("STI init_graph failed (ret %d, errno %d)\n", ret, err);
- return -1;
- }
-
- return 0;
-}
-
-static const struct sti_conf_flags default_conf_flags = {
- .wait = STI_WAIT,
-};
-
-static void sti_inq_conf(struct sti_struct *sti)
-{
- struct sti_conf_inptr *inptr = &sti->sti_data->inq_inptr;
- struct sti_conf_outptr *outptr = &sti->sti_data->inq_outptr;
- unsigned long flags;
- s32 ret;
-
- outptr->ext_ptr = STI_PTR(&sti->sti_data->inq_outptr_ext);
-
- do {
- spin_lock_irqsave(&sti->lock, flags);
- memset(inptr, 0, sizeof(*inptr));
- ret = sti_call(sti, sti->inq_conf, &default_conf_flags,
- inptr, outptr, sti->glob_cfg);
- spin_unlock_irqrestore(&sti->lock, flags);
- } while (ret == 1);
-}
-
-static const struct sti_font_flags default_font_flags = {
- .wait = STI_WAIT,
- .non_text = 0,
-};
-
-void
-sti_putc(struct sti_struct *sti, int c, int y, int x,
- struct sti_cooked_font *font)
-{
- struct sti_font_inptr *inptr = &sti->sti_data->font_inptr;
- struct sti_font_inptr inptr_default = {
- .font_start_addr = STI_PTR(font->raw),
- .index = c_index(sti, c),
- .fg_color = c_fg(sti, c),
- .bg_color = c_bg(sti, c),
- .dest_x = x * font->width,
- .dest_y = y * font->height,
- };
- struct sti_font_outptr *outptr = &sti->sti_data->font_outptr;
- s32 ret;
- unsigned long flags;
-
- do {
- spin_lock_irqsave(&sti->lock, flags);
- *inptr = inptr_default;
- ret = sti_call(sti, sti->font_unpmv, &default_font_flags,
- inptr, outptr, sti->glob_cfg);
- spin_unlock_irqrestore(&sti->lock, flags);
- } while (ret == 1);
-}
-
-static const struct sti_blkmv_flags clear_blkmv_flags = {
- .wait = STI_WAIT,
- .color = 1,
- .clear = 1,
-};
-
-void
-sti_set(struct sti_struct *sti, int src_y, int src_x,
- int height, int width, u8 color)
-{
- struct sti_blkmv_inptr *inptr = &sti->sti_data->blkmv_inptr;
- struct sti_blkmv_inptr inptr_default = {
- .fg_color = color,
- .bg_color = color,
- .src_x = src_x,
- .src_y = src_y,
- .dest_x = src_x,
- .dest_y = src_y,
- .width = width,
- .height = height,
- };
- struct sti_blkmv_outptr *outptr = &sti->sti_data->blkmv_outptr;
- s32 ret;
- unsigned long flags;
-
- do {
- spin_lock_irqsave(&sti->lock, flags);
- *inptr = inptr_default;
- ret = sti_call(sti, sti->block_move, &clear_blkmv_flags,
- inptr, outptr, sti->glob_cfg);
- spin_unlock_irqrestore(&sti->lock, flags);
- } while (ret == 1);
-}
-
-void
-sti_clear(struct sti_struct *sti, int src_y, int src_x,
- int height, int width, int c, struct sti_cooked_font *font)
-{
- struct sti_blkmv_inptr *inptr = &sti->sti_data->blkmv_inptr;
- struct sti_blkmv_inptr inptr_default = {
- .fg_color = c_fg(sti, c),
- .bg_color = c_bg(sti, c),
- .src_x = src_x * font->width,
- .src_y = src_y * font->height,
- .dest_x = src_x * font->width,
- .dest_y = src_y * font->height,
- .width = width * font->width,
- .height = height * font->height,
- };
- struct sti_blkmv_outptr *outptr = &sti->sti_data->blkmv_outptr;
- s32 ret;
- unsigned long flags;
-
- do {
- spin_lock_irqsave(&sti->lock, flags);
- *inptr = inptr_default;
- ret = sti_call(sti, sti->block_move, &clear_blkmv_flags,
- inptr, outptr, sti->glob_cfg);
- spin_unlock_irqrestore(&sti->lock, flags);
- } while (ret == 1);
-}
-
-static const struct sti_blkmv_flags default_blkmv_flags = {
- .wait = STI_WAIT,
-};
-
-void
-sti_bmove(struct sti_struct *sti, int src_y, int src_x,
- int dst_y, int dst_x, int height, int width,
- struct sti_cooked_font *font)
-{
- struct sti_blkmv_inptr *inptr = &sti->sti_data->blkmv_inptr;
- struct sti_blkmv_inptr inptr_default = {
- .src_x = src_x * font->width,
- .src_y = src_y * font->height,
- .dest_x = dst_x * font->width,
- .dest_y = dst_y * font->height,
- .width = width * font->width,
- .height = height * font->height,
- };
- struct sti_blkmv_outptr *outptr = &sti->sti_data->blkmv_outptr;
- s32 ret;
- unsigned long flags;
-
- do {
- spin_lock_irqsave(&sti->lock, flags);
- *inptr = inptr_default;
- ret = sti_call(sti, sti->block_move, &default_blkmv_flags,
- inptr, outptr, sti->glob_cfg);
- spin_unlock_irqrestore(&sti->lock, flags);
- } while (ret == 1);
-}
-
-
-static void sti_flush(unsigned long start, unsigned long end)
-{
- flush_icache_range(start, end);
-}
-
-static void sti_rom_copy(unsigned long base, unsigned long count, void *dest)
-{
- unsigned long dest_start = (unsigned long) dest;
-
- /* this still needs to be revisited (see arch/parisc/mm/init.c:246) ! */
- while (count >= 4) {
- count -= 4;
- *(u32 *)dest = gsc_readl(base);
- base += 4;
- dest += 4;
- }
- while (count) {
- count--;
- *(u8 *)dest = gsc_readb(base);
- base++;
- dest++;
- }
-
- sti_flush(dest_start, (unsigned long)dest);
-}
-
-
-
-
-static char default_sti_path[21] __read_mostly;
-
-#ifndef MODULE
-static int __init sti_setup(char *str)
-{
- if (str)
- strscpy(default_sti_path, str, sizeof(default_sti_path));
-
- return 1;
-}
-
-/* Assuming the machine has multiple STI consoles (=graphic cards) which
- * all get detected by sticon, the user may define with the linux kernel
- * parameter sti=<x> which of them will be the initial boot-console.
- * <x> is a number between 0 and MAX_STI_ROMS, with 0 as the default
- * STI screen.
- */
-__setup("sti=", sti_setup);
-#endif
-
-
-
-static char *font_name;
-static int font_index,
- font_height,
- font_width;
-#ifndef MODULE
-static int sti_font_setup(char *str)
-{
- /*
- * The default font can be selected in various ways.
- * a) sti_font=VGA8x16, sti_font=10x20, sti_font=10*20 selects
- * an built-in Linux framebuffer font.
- * b) sti_font=<index>, where index is (1..x) with 1 selecting
- * the first HP STI ROM built-in font..
- */
-
- if (*str >= '0' && *str <= '9') {
- char *x;
-
- if ((x = strchr(str, 'x')) || (x = strchr(str, '*'))) {
- font_height = simple_strtoul(str, NULL, 0);
- font_width = simple_strtoul(x+1, NULL, 0);
- } else {
- font_index = simple_strtoul(str, NULL, 0);
- }
- } else {
- font_name = str; /* fb font name */
- }
-
- return 1;
-}
-
-/* The optional linux kernel parameter "sti_font" defines which font
- * should be used by the sticon driver to draw characters to the screen.
- * Possible values are:
- * - sti_font=<fb_fontname>:
- * <fb_fontname> is the name of one of the linux-kernel built-in
- * framebuffer font names (e.g. VGA8x16, SUN22x18).
- * This is only available if the fonts have been statically compiled
- * in with e.g. the CONFIG_FONT_8x16 or CONFIG_FONT_SUN12x22 options.
- * - sti_font=<number> (<number> = 1,2,3,...)
- * most STI ROMs have built-in HP specific fonts, which can be selected
- * by giving the desired number to the sticon driver.
- * NOTE: This number is machine and STI ROM dependend.
- * - sti_font=<height>x<width> (e.g. sti_font=16x8)
- * <height> and <width> gives hints to the height and width of the
- * font which the user wants. The sticon driver will try to use
- * a font with this height and width, but if no suitable font is
- * found, sticon will use the default 8x8 font.
- */
-__setup("sti_font=", sti_font_setup);
-#endif
-
-
-
-static void sti_dump_globcfg(struct sti_glob_cfg *glob_cfg,
- unsigned int sti_mem_request)
-{
- struct sti_glob_cfg_ext *cfg;
-
- pr_debug("%d text planes\n"
- "%4d x %4d screen resolution\n"
- "%4d x %4d offscreen\n"
- "%4d x %4d layout\n"
- "regions at %08x %08x %08x %08x\n"
- "regions at %08x %08x %08x %08x\n"
- "reent_lvl %d\n"
- "save_addr %08x\n",
- glob_cfg->text_planes,
- glob_cfg->onscreen_x, glob_cfg->onscreen_y,
- glob_cfg->offscreen_x, glob_cfg->offscreen_y,
- glob_cfg->total_x, glob_cfg->total_y,
- glob_cfg->region_ptrs[0], glob_cfg->region_ptrs[1],
- glob_cfg->region_ptrs[2], glob_cfg->region_ptrs[3],
- glob_cfg->region_ptrs[4], glob_cfg->region_ptrs[5],
- glob_cfg->region_ptrs[6], glob_cfg->region_ptrs[7],
- glob_cfg->reent_lvl,
- glob_cfg->save_addr);
-
- /* dump extended cfg */
- cfg = PTR_STI((unsigned long)glob_cfg->ext_ptr);
- pr_debug("monitor %d\n"
- "in friendly mode: %d\n"
- "power consumption %d watts\n"
- "freq ref %d\n"
- "sti_mem_addr %08x (size=%d bytes)\n",
- cfg->curr_mon,
- cfg->friendly_boot,
- cfg->power,
- cfg->freq_ref,
- cfg->sti_mem_addr, sti_mem_request);
-}
-
-static void sti_dump_outptr(struct sti_struct *sti)
-{
- pr_debug("%d bits per pixel\n"
- "%d used bits\n"
- "%d planes\n"
- "attributes %08x\n",
- sti->sti_data->inq_outptr.bits_per_pixel,
- sti->sti_data->inq_outptr.bits_used,
- sti->sti_data->inq_outptr.planes,
- sti->sti_data->inq_outptr.attributes);
-}
-
-static int sti_init_glob_cfg(struct sti_struct *sti, unsigned long rom_address,
- unsigned long hpa)
-{
- struct sti_glob_cfg *glob_cfg;
- struct sti_glob_cfg_ext *glob_cfg_ext;
- void *save_addr;
- void *sti_mem_addr;
- int i, size;
-
- if (sti->sti_mem_request < 256)
- sti->sti_mem_request = 256; /* STI default */
-
- size = sizeof(struct sti_all_data) + sti->sti_mem_request - 256;
-
- sti->sti_data = kzalloc(size, STI_LOWMEM);
- if (!sti->sti_data)
- return -ENOMEM;
-
- glob_cfg = &sti->sti_data->glob_cfg;
- glob_cfg_ext = &sti->sti_data->glob_cfg_ext;
- save_addr = &sti->sti_data->save_addr;
- sti_mem_addr = &sti->sti_data->sti_mem_addr;
-
- glob_cfg->ext_ptr = STI_PTR(glob_cfg_ext);
- glob_cfg->save_addr = STI_PTR(save_addr);
- for (i=0; i<8; i++) {
- unsigned long newhpa, len;
-
- if (sti->pd) {
- unsigned char offs = sti->rm_entry[i];
-
- if (offs == 0)
- continue;
- if (offs != PCI_ROM_ADDRESS &&
- (offs < PCI_BASE_ADDRESS_0 ||
- offs > PCI_BASE_ADDRESS_5)) {
- pr_warn("STI pci region mapping for region %d (%02x) can't be mapped\n",
- i,sti->rm_entry[i]);
- continue;
- }
- newhpa = pci_resource_start (sti->pd, (offs - PCI_BASE_ADDRESS_0) / 4);
- } else
- newhpa = (i == 0) ? rom_address : hpa;
-
- sti->regions_phys[i] =
- REGION_OFFSET_TO_PHYS(sti->regions[i], newhpa);
-
- len = sti->regions[i].region_desc.length * 4096;
- if (len)
- glob_cfg->region_ptrs[i] = sti->regions_phys[i];
-
- pr_debug("region #%d: phys %08lx, region_ptr %08x, len=%lukB, "
- "btlb=%d, sysonly=%d, cache=%d, last=%d\n",
- i, sti->regions_phys[i], glob_cfg->region_ptrs[i],
- len/1024,
- sti->regions[i].region_desc.btlb,
- sti->regions[i].region_desc.sys_only,
- sti->regions[i].region_desc.cache,
- sti->regions[i].region_desc.last);
-
- /* last entry reached ? */
- if (sti->regions[i].region_desc.last)
- break;
- }
-
- if (++i<8 && sti->regions[i].region)
- pr_warn("future ptr (0x%8x) not yet supported !\n",
- sti->regions[i].region);
-
- glob_cfg_ext->sti_mem_addr = STI_PTR(sti_mem_addr);
-
- sti->glob_cfg = glob_cfg;
-
- return 0;
-}
-
-#ifdef CONFIG_FONT_SUPPORT
-static struct sti_cooked_font *
-sti_select_fbfont(struct sti_cooked_rom *cooked_rom, const char *fbfont_name)
-{
- const struct font_desc *fbfont = NULL;
- unsigned int size, bpc;
- void *dest;
- struct sti_rom_font *nf;
- struct sti_cooked_font *cooked_font;
-
- if (fbfont_name && strlen(fbfont_name))
- fbfont = find_font(fbfont_name);
- if (!fbfont)
- fbfont = get_default_font(1024,768, ~(u32)0, ~(u32)0);
- if (!fbfont)
- return NULL;
-
- pr_info(" using %ux%u framebuffer font %s\n",
- fbfont->width, fbfont->height, fbfont->name);
-
- bpc = ((fbfont->width+7)/8) * fbfont->height;
- size = bpc * fbfont->charcount;
- size += sizeof(struct sti_rom_font);
-
- nf = kzalloc(size, STI_LOWMEM);
- if (!nf)
- return NULL;
-
- nf->first_char = 0;
- nf->last_char = fbfont->charcount - 1;
- nf->width = fbfont->width;
- nf->height = fbfont->height;
- nf->font_type = STI_FONT_HPROMAN8;
- nf->bytes_per_char = bpc;
- nf->next_font = 0;
- nf->underline_height = 1;
- nf->underline_pos = fbfont->height - nf->underline_height;
-
- dest = nf;
- dest += sizeof(struct sti_rom_font);
- memcpy(dest, fbfont->data, bpc * fbfont->charcount);
-
- cooked_font = kzalloc(sizeof(*cooked_font), GFP_KERNEL);
- if (!cooked_font) {
- kfree(nf);
- return NULL;
- }
-
- cooked_font->raw = nf;
- cooked_font->raw_ptr = nf;
- cooked_font->next_font = NULL;
-
- cooked_rom->font_start = cooked_font;
-
- return cooked_font;
-}
-#else
-static struct sti_cooked_font *
-sti_select_fbfont(struct sti_cooked_rom *cooked_rom, const char *fbfont_name)
-{
- return NULL;
-}
-#endif
-
-static void sti_dump_font(struct sti_cooked_font *font)
-{
-#ifdef STI_DUMP_FONT
- unsigned char *p = (unsigned char *)font->raw;
- int n;
-
- p += sizeof(struct sti_rom_font);
- pr_debug(" w %d h %d bpc %d\n", font->width, font->height,
- font->raw->bytes_per_char);
-
- for (n = 0; n < 256 * font->raw->bytes_per_char; n += 16, p += 16) {
- pr_debug(" 0x%02x, 0x%02x, 0x%02x, 0x%02x, 0x%02x, 0x%02x,"
- " 0x%02x, 0x%02x, 0x%02x, 0x%02x, 0x%02x, 0x%02x,"
- " 0x%02x, 0x%02x, 0x%02x, 0x%02x,\n",
- p[0], p[1], p[2], p[3], p[4], p[5], p[6], p[7], p[8],
- p[9], p[10], p[11], p[12], p[13], p[14], p[15]);
- }
-#endif
-}
-
-static int sti_search_font(struct sti_cooked_rom *rom, int height, int width)
-{
- struct sti_cooked_font *font;
- int i = 0;
-
- for (font = rom->font_start; font; font = font->next_font, i++) {
- if ((font->raw->width == width) &&
- (font->raw->height == height))
- return i;
- }
- return 0;
-}
-
-static struct sti_cooked_font *sti_select_font(struct sti_cooked_rom *rom)
-{
- struct sti_cooked_font *font;
- int i;
-
- /* check for framebuffer-font first */
- if (!font_index) {
- font = sti_select_fbfont(rom, font_name);
- if (font)
- return font;
- }
-
- if (font_width && font_height)
- font_index = sti_search_font(rom,
- font_height, font_width);
-
- for (font = rom->font_start, i = font_index - 1;
- font && (i > 0);
- font = font->next_font, i--);
-
- if (font)
- return font;
- else
- return rom->font_start;
-}
-
-
-static void sti_dump_rom(struct sti_struct *sti)
-{
- struct sti_rom *rom = sti->rom->raw;
- struct sti_cooked_font *font_start;
- int nr;
-
- pr_info(" id %04x-%04x, conforms to spec rev. %d.%02x\n",
- rom->graphics_id[0],
- rom->graphics_id[1],
- rom->revno[0] >> 4,
- rom->revno[0] & 0x0f);
- pr_debug(" supports %d monitors\n", rom->num_mons);
- pr_debug(" font start %08x\n", rom->font_start);
- pr_debug(" region list %08x\n", rom->region_list);
- pr_debug(" init_graph %08x\n", rom->init_graph);
- pr_debug(" bus support %02x\n", rom->bus_support);
- pr_debug(" ext bus support %02x\n", rom->ext_bus_support);
- pr_debug(" alternate code type %d\n", rom->alt_code_type);
-
- font_start = sti->rom->font_start;
- nr = 0;
- while (font_start) {
- struct sti_rom_font *f = font_start->raw;
-
- pr_info(" built-in font #%d: size %dx%d, chars %d-%d, bpc %d\n", ++nr,
- f->width, f->height,
- f->first_char, f->last_char, f->bytes_per_char);
- font_start = font_start->next_font;
- }
-}
-
-
-static int sti_cook_fonts(struct sti_cooked_rom *cooked_rom,
- struct sti_rom *raw_rom)
-{
- struct sti_rom_font *raw_font, *font_start;
- struct sti_cooked_font *cooked_font;
-
- cooked_font = kzalloc(sizeof(*cooked_font), GFP_KERNEL);
- if (!cooked_font)
- return 0;
-
- cooked_rom->font_start = cooked_font;
-
- raw_font = ((void *)raw_rom) + (raw_rom->font_start);
-
- font_start = raw_font;
- cooked_font->raw = raw_font;
-
- while (raw_font->next_font) {
- raw_font = ((void *)font_start) + (raw_font->next_font);
-
- cooked_font->next_font = kzalloc(sizeof(*cooked_font), GFP_KERNEL);
- if (!cooked_font->next_font)
- return 1;
-
- cooked_font = cooked_font->next_font;
-
- cooked_font->raw = raw_font;
- }
-
- cooked_font->next_font = NULL;
- return 1;
-}
-
-#define BMODE_RELOCATE(offset) offset = (offset) / 4;
-#define BMODE_LAST_ADDR_OFFS 0x50
-
-void sti_font_convert_bytemode(struct sti_struct *sti, struct sti_cooked_font *f)
-{
- unsigned char *n, *p, *q;
- int size = f->raw->bytes_per_char * (f->raw->last_char + 1) + sizeof(struct sti_rom_font);
- struct sti_rom_font *old_font;
-
- if (sti->wordmode)
- return;
-
- old_font = f->raw_ptr;
- n = kcalloc(4, size, STI_LOWMEM);
- f->raw_ptr = n;
- if (!n)
- return;
- p = n + 3;
- q = (unsigned char *) f->raw;
- while (size--) {
- *p = *q++;
- p += 4;
- }
- /* store new ptr to byte-mode font and delete old font */
- f->raw = (struct sti_rom_font *) (n + 3);
- kfree(old_font);
-}
-EXPORT_SYMBOL(sti_font_convert_bytemode);
-
-static void sti_bmode_rom_copy(unsigned long base, unsigned long count,
- void *dest)
-{
- unsigned long dest_start = (unsigned long) dest;
-
- while (count) {
- count--;
- *(u8 *)dest = gsc_readl(base);
- base += 4;
- dest++;
- }
-
- sti_flush(dest_start, (unsigned long)dest);
-}
-
-static struct sti_rom *sti_get_bmode_rom (unsigned long address)
-{
- struct sti_rom *raw;
- u32 size;
- struct sti_rom_font *raw_font, *font_start;
-
- sti_bmode_rom_copy(address + BMODE_LAST_ADDR_OFFS, sizeof(size), &size);
-
- size = (size+3) / 4;
- raw = kmalloc(size, STI_LOWMEM);
- if (raw) {
- sti_bmode_rom_copy(address, size, raw);
- memmove (&raw->res004, &raw->type[0], 0x3c);
- raw->type[3] = raw->res004;
-
- BMODE_RELOCATE (raw->region_list);
- BMODE_RELOCATE (raw->font_start);
-
- BMODE_RELOCATE (raw->init_graph);
- BMODE_RELOCATE (raw->state_mgmt);
- BMODE_RELOCATE (raw->font_unpmv);
- BMODE_RELOCATE (raw->block_move);
- BMODE_RELOCATE (raw->inq_conf);
-
- raw_font = ((void *)raw) + raw->font_start;
- font_start = raw_font;
-
- while (raw_font->next_font) {
- BMODE_RELOCATE (raw_font->next_font);
- raw_font = ((void *)font_start) + raw_font->next_font;
- }
- }
- return raw;
-}
-
-static struct sti_rom *sti_get_wmode_rom(unsigned long address)
-{
- struct sti_rom *raw;
- unsigned long size;
-
- /* read the ROM size directly from the struct in ROM */
- size = gsc_readl(address + offsetof(struct sti_rom,last_addr));
-
- raw = kmalloc(size, STI_LOWMEM);
- if (raw)
- sti_rom_copy(address, size, raw);
-
- return raw;
-}
-
-static int sti_read_rom(int wordmode, struct sti_struct *sti,
- unsigned long address)
-{
- struct sti_cooked_rom *cooked;
- struct sti_rom *raw = NULL;
- unsigned long revno;
-
- cooked = kmalloc(sizeof *cooked, GFP_KERNEL);
- if (!cooked)
- goto out_err;
-
- if (wordmode)
- raw = sti_get_wmode_rom (address);
- else
- raw = sti_get_bmode_rom (address);
-
- if (!raw)
- goto out_err;
-
- if (!sti_cook_fonts(cooked, raw)) {
- pr_warn("No font found for STI at %08lx\n", address);
- goto out_err;
- }
-
- if (raw->region_list)
- memcpy(sti->regions, ((void *)raw)+raw->region_list, sizeof(sti->regions));
-
- address = (unsigned long) STI_PTR(raw);
-
- pr_info("STI %s ROM supports 32 %sbit firmware functions.\n",
- wordmode ? "word mode" : "byte mode",
- raw->alt_code_type == ALT_CODE_TYPE_PA_RISC_64
- ? "and 64 " : "");
-
- sti->font_unpmv = address + (raw->font_unpmv & 0x03ffffff);
- sti->block_move = address + (raw->block_move & 0x03ffffff);
- sti->init_graph = address + (raw->init_graph & 0x03ffffff);
- sti->inq_conf = address + (raw->inq_conf & 0x03ffffff);
-
- sti->rom = cooked;
- sti->rom->raw = raw;
- sti_dump_rom(sti);
-
- sti->wordmode = wordmode;
- sti->font = sti_select_font(sti->rom);
- sti->font->width = sti->font->raw->width;
- sti->font->height = sti->font->raw->height;
- sti_font_convert_bytemode(sti, sti->font);
- sti_dump_font(sti->font);
-
- sti->sti_mem_request = raw->sti_mem_req;
- sti->graphics_id[0] = raw->graphics_id[0];
- sti->graphics_id[1] = raw->graphics_id[1];
-
- /* check if the ROM routines in this card are compatible */
- if (wordmode || sti->graphics_id[1] != 0x09A02587)
- goto ok;
-
- revno = (raw->revno[0] << 8) | raw->revno[1];
-
- switch (sti->graphics_id[0]) {
- case S9000_ID_HCRX:
- /* HyperA or HyperB ? */
- if (revno == 0x8408 || revno == 0x840b)
- goto msg_not_supported;
- break;
- case CRT_ID_THUNDER:
- if (revno == 0x8509)
- goto msg_not_supported;
- break;
- case CRT_ID_THUNDER2:
- if (revno == 0x850c)
- goto msg_not_supported;
- }
-ok:
- return 1;
-
-msg_not_supported:
- pr_warn("Sorry, this GSC/STI card is not yet supported.\n");
- pr_warn("Please see https://parisc.wiki.kernel.org/"
- "index.php/Graphics_howto for more info.\n");
- /* fall through */
-out_err:
- kfree(raw);
- kfree(cooked);
- return 0;
-}
-
-static struct sti_struct *sti_try_rom_generic(unsigned long address,
- unsigned long hpa,
- struct pci_dev *pd)
-{
- struct sti_struct *sti;
- int ok;
- u32 sig;
-
- if (num_sti_roms >= MAX_STI_ROMS) {
- pr_warn("maximum number of STI ROMS reached !\n");
- return NULL;
- }
-
- sti = kzalloc(sizeof(*sti), GFP_KERNEL);
- if (!sti)
- return NULL;
-
- spin_lock_init(&sti->lock);
-
-test_rom:
- /* if we can't read the ROM, bail out early. Not being able
- * to read the hpa is okay, for romless sti */
- if (pdc_add_valid(address))
- goto out_err;
-
- sig = gsc_readl(address);
-
- /* check for a PCI ROM structure */
- if ((le32_to_cpu(sig)==0xaa55)) {
- unsigned int i, rm_offset;
- u32 *rm;
- i = gsc_readl(address+0x04);
- if (i != 1) {
- /* The ROM could have multiple architecture
- * dependent images (e.g. i386, parisc,...) */
- pr_warn("PCI ROM is not a STI ROM type image (0x%8x)\n", i);
- goto out_err;
- }
-
- sti->pd = pd;
-
- i = gsc_readl(address+0x0c);
- pr_debug("PCI ROM size (from header) = %d kB\n",
- le16_to_cpu(i>>16)*512/1024);
- rm_offset = le16_to_cpu(i & 0xffff);
- if (rm_offset) {
- /* read 16 bytes from the pci region mapper array */
- rm = (u32*) &sti->rm_entry;
- *rm++ = gsc_readl(address+rm_offset+0x00);
- *rm++ = gsc_readl(address+rm_offset+0x04);
- *rm++ = gsc_readl(address+rm_offset+0x08);
- *rm++ = gsc_readl(address+rm_offset+0x0c);
- }
-
- address += le32_to_cpu(gsc_readl(address+8));
- pr_debug("sig %04x, PCI STI ROM at %08lx\n", sig, address);
- goto test_rom;
- }
-
- ok = 0;
-
- if ((sig & 0xff) == 0x01) {
- pr_debug(" byte mode ROM at %08lx, hpa at %08lx\n",
- address, hpa);
- ok = sti_read_rom(0, sti, address);
- }
-
- if ((sig & 0xffff) == 0x0303) {
- pr_debug(" word mode ROM at %08lx, hpa at %08lx\n",
- address, hpa);
- ok = sti_read_rom(1, sti, address);
- }
-
- if (!ok)
- goto out_err;
-
- if (sti_init_glob_cfg(sti, address, hpa))
- goto out_err; /* not enough memory */
-
- /* disable STI PCI ROM. ROM and card RAM overlap and
- * leaving it enabled would force HPMCs
- */
- if (sti->pd) {
- unsigned long rom_base;
- rom_base = pci_resource_start(sti->pd, PCI_ROM_RESOURCE);
- pci_write_config_dword(sti->pd, PCI_ROM_ADDRESS, rom_base & ~PCI_ROM_ADDRESS_ENABLE);
- pr_debug("STI PCI ROM disabled\n");
- }
-
- if (sti_init_graph(sti))
- goto out_err;
-
- sti_inq_conf(sti);
- sti_dump_globcfg(sti->glob_cfg, sti->sti_mem_request);
- sti_dump_outptr(sti);
-
- pr_info(" graphics card name: %s\n",
- sti->sti_data->inq_outptr.dev_name);
-
- sti_roms[num_sti_roms] = sti;
- num_sti_roms++;
-
- return sti;
-
-out_err:
- kfree(sti);
- return NULL;
-}
-
-static void sticore_check_for_default_sti(struct sti_struct *sti, char *path)
-{
- pr_info(" located at [%s]\n", sti->pa_path);
- if (strcmp (path, default_sti_path) == 0)
- default_sti = sti;
-}
-
-/*
- * on newer systems PDC gives the address of the ROM
- * in the additional address field addr[1] while on
- * older Systems the PDC stores it in page0->proc_sti
- */
-static int __init sticore_pa_init(struct parisc_device *dev)
-{
- struct sti_struct *sti = NULL;
- int hpa = dev->hpa.start;
-
- if (dev->num_addrs && dev->addr[0])
- sti = sti_try_rom_generic(dev->addr[0], hpa, NULL);
- if (!sti)
- sti = sti_try_rom_generic(hpa, hpa, NULL);
- if (!sti)
- sti = sti_try_rom_generic(PAGE0->proc_sti, hpa, NULL);
- if (!sti)
- return 1;
-
- print_pa_hwpath(dev, sti->pa_path);
- sticore_check_for_default_sti(sti, sti->pa_path);
- return 0;
-}
-
-
-static int sticore_pci_init(struct pci_dev *pd, const struct pci_device_id *ent)
-{
-#ifdef CONFIG_PCI
- unsigned long fb_base, rom_base;
- unsigned int fb_len, rom_len;
- int err;
- struct sti_struct *sti;
-
- err = pci_enable_device(pd);
- if (err < 0) {
- dev_err(&pd->dev, "Cannot enable PCI device\n");
- return err;
- }
-
- fb_base = pci_resource_start(pd, 0);
- fb_len = pci_resource_len(pd, 0);
- rom_base = pci_resource_start(pd, PCI_ROM_RESOURCE);
- rom_len = pci_resource_len(pd, PCI_ROM_RESOURCE);
- if (rom_base) {
- pci_write_config_dword(pd, PCI_ROM_ADDRESS, rom_base | PCI_ROM_ADDRESS_ENABLE);
- pr_debug("STI PCI ROM enabled at 0x%08lx\n", rom_base);
- }
-
- pr_info("STI PCI graphic ROM found at %08lx (%u kB), fb at %08lx (%u MB)\n",
- rom_base, rom_len/1024, fb_base, fb_len/1024/1024);
-
- pr_debug("Trying PCI STI ROM at %08lx, PCI hpa at %08lx\n",
- rom_base, fb_base);
-
- sti = sti_try_rom_generic(rom_base, fb_base, pd);
- if (sti) {
- print_pci_hwpath(pd, sti->pa_path);
- sticore_check_for_default_sti(sti, sti->pa_path);
- }
-
- if (!sti) {
- pr_warn("Unable to handle STI device '%s'\n", pci_name(pd));
- return -ENODEV;
- }
-#endif /* CONFIG_PCI */
-
- return 0;
-}
-
-
-static void __exit sticore_pci_remove(struct pci_dev *pd)
-{
- BUG();
-}
-
-
-static struct pci_device_id sti_pci_tbl[] = {
- { PCI_DEVICE(PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_VISUALIZE_EG) },
- { PCI_DEVICE(PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_VISUALIZE_FX6) },
- { PCI_DEVICE(PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_VISUALIZE_FX4) },
- { PCI_DEVICE(PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_VISUALIZE_FX2) },
- { PCI_DEVICE(PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_VISUALIZE_FXE) },
- { 0, } /* terminate list */
-};
-MODULE_DEVICE_TABLE(pci, sti_pci_tbl);
-
-static struct pci_driver pci_sti_driver = {
- .name = "sti",
- .id_table = sti_pci_tbl,
- .probe = sticore_pci_init,
- .remove = __exit_p(sticore_pci_remove),
-};
-
-static struct parisc_device_id sti_pa_tbl[] = {
- { HPHW_FIO, HVERSION_REV_ANY_ID, HVERSION_ANY_ID, 0x00077 },
- { HPHW_FIO, HVERSION_REV_ANY_ID, HVERSION_ANY_ID, 0x00085 },
- { 0, }
-};
-MODULE_DEVICE_TABLE(parisc, sti_pa_tbl);
-
-static struct parisc_driver pa_sti_driver __refdata = {
- .name = "sti",
- .id_table = sti_pa_tbl,
- .probe = sticore_pa_init,
-};
-
-
-/*
- * sti_init_roms() - detects all STI ROMs and stores them in sti_roms[]
- */
-
-static int sticore_initialized __read_mostly;
-
-static void sti_init_roms(void)
-{
- if (sticore_initialized)
- return;
-
- sticore_initialized = 1;
-
- pr_info("STI GSC/PCI core graphics driver "
- STI_DRIVERVERSION "\n");
-
- /* Register drivers for native & PCI cards */
- register_parisc_driver(&pa_sti_driver);
- WARN_ON(pci_register_driver(&pci_sti_driver));
-
- /* if we didn't find the given default sti, take the first one */
- if (!default_sti)
- default_sti = sti_roms[0];
-
-}
-
-/*
- * index = 0 gives default sti
- * index > 0 gives other stis in detection order
- */
-struct sti_struct * sti_get_rom(unsigned int index)
-{
- if (!sticore_initialized)
- sti_init_roms();
-
- if (index == 0)
- return default_sti;
-
- if (index > num_sti_roms)
- return NULL;
-
- return sti_roms[index-1];
-}
-EXPORT_SYMBOL(sti_get_rom);
-
-
-int sti_call(const struct sti_struct *sti, unsigned long func,
- const void *flags, void *inptr, void *outptr,
- struct sti_glob_cfg *glob_cfg)
-{
- unsigned long _flags = STI_PTR(flags);
- unsigned long _inptr = STI_PTR(inptr);
- unsigned long _outptr = STI_PTR(outptr);
- unsigned long _glob_cfg = STI_PTR(glob_cfg);
- int ret;
-
-#ifdef CONFIG_64BIT
- /* Check for overflow when using 32bit STI on 64bit kernel. */
- if (WARN_ONCE(_flags>>32 || _inptr>>32 || _outptr>>32 || _glob_cfg>>32,
- "Out of 32bit-range pointers!"))
- return -1;
-#endif
-
- ret = pdc_sti_call(func, _flags, _inptr, _outptr, _glob_cfg);
-
- return ret;
-}
-
-#if defined(CONFIG_FB_STI)
-/* check if given fb_info is the primary device */
-int fb_is_primary_device(struct fb_info *info)
-{
- struct sti_struct *sti;
-
- sti = sti_get_rom(0);
-
- /* if no built-in graphics card found, allow any fb driver as default */
- if (!sti)
- return true;
-
- /* return true if it's the default built-in framebuffer driver */
- return (sti->info == info);
-}
-EXPORT_SYMBOL(fb_is_primary_device);
-#endif
-
-MODULE_AUTHOR("Philipp Rumpf, Helge Deller, Thomas Bogendoerfer");
-MODULE_DESCRIPTION("Core STI driver for HP's NGLE series graphics cards in HP PARISC machines");
-MODULE_LICENSE("GPL v2");
-
select FB_CFB_FILLRECT
select FB_CFB_COPYAREA
select FB_CFB_IMAGEBLIT
+ select STI_CORE
default y
help
- STI refers to the HP "Standard Text Interface" which is a set of
- BIOS routines contained in a ROM chip in HP PA-RISC based machines.
Enabling this option will implement the linux framebuffer device
using calls to the STI BIOS routines for initialisation.
+++ /dev/null
-/* SPDX-License-Identifier: GPL-2.0 */
-#ifndef STICORE_H
-#define STICORE_H
-
-/* generic STI structures & functions */
-
-#define MAX_STI_ROMS 4 /* max no. of ROMs which this driver handles */
-
-#define STI_REGION_MAX 8 /* hardcoded STI constants */
-#define STI_DEV_NAME_LENGTH 32
-#define STI_MONITOR_MAX 256
-
-#define STI_FONT_HPROMAN8 1
-#define STI_FONT_KANA8 2
-
-#define ALT_CODE_TYPE_UNKNOWN 0x00 /* alt code type values */
-#define ALT_CODE_TYPE_PA_RISC_64 0x01
-
-/* The latency of the STI functions cannot really be reduced by setting
- * this to 0; STI doesn't seem to be designed to allow calling a different
- * function (or the same function with different arguments) after a
- * function exited with 1 as return value.
- *
- * As all of the functions below could be called from interrupt context,
- * we have to spin_lock_irqsave around the do { ret = bla(); } while(ret==1)
- * block. Really bad latency there.
- *
- * Probably the best solution to all this is have the generic code manage
- * the screen buffer and a kernel thread to call STI occasionally.
- *
- * Luckily, the frame buffer guys have the same problem so we can just wait
- * for them to fix it and steal their solution. prumpf
- */
-
-#include <asm/io.h>
-
-#define STI_WAIT 1
-
-#define STI_PTR(p) ( virt_to_phys(p) )
-#define PTR_STI(p) ( phys_to_virt((unsigned long)p) )
-
-#define sti_onscreen_x(sti) (sti->glob_cfg->onscreen_x)
-#define sti_onscreen_y(sti) (sti->glob_cfg->onscreen_y)
-
-/* sti_font_xy() use the native font ROM ! */
-#define sti_font_x(sti) (PTR_STI(sti->font)->width)
-#define sti_font_y(sti) (PTR_STI(sti->font)->height)
-
-#ifdef CONFIG_64BIT
-#define STI_LOWMEM (GFP_KERNEL | GFP_DMA)
-#else
-#define STI_LOWMEM (GFP_KERNEL)
-#endif
-
-
-/* STI function configuration structs */
-
-typedef union region {
- struct {
- u32 offset : 14; /* offset in 4kbyte page */
- u32 sys_only : 1; /* don't map to user space */
- u32 cache : 1; /* map to data cache */
- u32 btlb : 1; /* map to block tlb */
- u32 last : 1; /* last region in list */
- u32 length : 14; /* length in 4kbyte page */
- } region_desc;
-
- u32 region; /* complete region value */
-} region_t;
-
-#define REGION_OFFSET_TO_PHYS( rt, hpa ) \
- (((rt).region_desc.offset << 12) + (hpa))
-
-struct sti_glob_cfg_ext {
- u8 curr_mon; /* current monitor configured */
- u8 friendly_boot; /* in friendly boot mode */
- s16 power; /* power calculation (in Watts) */
- s32 freq_ref; /* frequency reference */
- u32 sti_mem_addr; /* pointer to global sti memory (size=sti_mem_request) */
- u32 future_ptr; /* pointer to future data */
-};
-
-struct sti_glob_cfg {
- s32 text_planes; /* number of planes used for text */
- s16 onscreen_x; /* screen width in pixels */
- s16 onscreen_y; /* screen height in pixels */
- s16 offscreen_x; /* offset width in pixels */
- s16 offscreen_y; /* offset height in pixels */
- s16 total_x; /* frame buffer width in pixels */
- s16 total_y; /* frame buffer height in pixels */
- u32 region_ptrs[STI_REGION_MAX]; /* region pointers */
- s32 reent_lvl; /* storage for reentry level value */
- u32 save_addr; /* where to save or restore reentrant state */
- u32 ext_ptr; /* pointer to extended glob_cfg data structure */
-};
-
-
-/* STI init function structs */
-
-struct sti_init_flags {
- u32 wait : 1; /* should routine idle wait or not */
- u32 reset : 1; /* hard reset the device? */
- u32 text : 1; /* turn on text display planes? */
- u32 nontext : 1; /* turn on non-text display planes? */
- u32 clear : 1; /* clear text display planes? */
- u32 cmap_blk : 1; /* non-text planes cmap black? */
- u32 enable_be_timer : 1; /* enable bus error timer */
- u32 enable_be_int : 1; /* enable bus error timer interrupt */
- u32 no_chg_tx : 1; /* don't change text settings */
- u32 no_chg_ntx : 1; /* don't change non-text settings */
- u32 no_chg_bet : 1; /* don't change berr timer settings */
- u32 no_chg_bei : 1; /* don't change berr int settings */
- u32 init_cmap_tx : 1; /* initialize cmap for text planes */
- u32 cmt_chg : 1; /* change current monitor type */
- u32 retain_ie : 1; /* don't allow reset to clear int enables */
- u32 caller_bootrom : 1; /* set only by bootrom for each call */
- u32 caller_kernel : 1; /* set only by kernel for each call */
- u32 caller_other : 1; /* set only by non-[BR/K] caller */
- u32 pad : 14; /* pad to word boundary */
- u32 future_ptr; /* pointer to future data */
-};
-
-struct sti_init_inptr_ext {
- u8 config_mon_type; /* configure to monitor type */
- u8 pad[1]; /* pad to word boundary */
- u16 inflight_data; /* inflight data possible on PCI */
- u32 future_ptr; /* pointer to future data */
-};
-
-struct sti_init_inptr {
- s32 text_planes; /* number of planes to use for text */
- u32 ext_ptr; /* pointer to extended init_graph inptr data structure*/
-};
-
-
-struct sti_init_outptr {
- s32 errno; /* error number on failure */
- s32 text_planes; /* number of planes used for text */
- u32 future_ptr; /* pointer to future data */
-};
-
-
-
-/* STI configuration function structs */
-
-struct sti_conf_flags {
- u32 wait : 1; /* should routine idle wait or not */
- u32 pad : 31; /* pad to word boundary */
- u32 future_ptr; /* pointer to future data */
-};
-
-struct sti_conf_inptr {
- u32 future_ptr; /* pointer to future data */
-};
-
-struct sti_conf_outptr_ext {
- u32 crt_config[3]; /* hardware specific X11/OGL information */
- u32 crt_hdw[3];
- u32 future_ptr;
-};
-
-struct sti_conf_outptr {
- s32 errno; /* error number on failure */
- s16 onscreen_x; /* screen width in pixels */
- s16 onscreen_y; /* screen height in pixels */
- s16 offscreen_x; /* offscreen width in pixels */
- s16 offscreen_y; /* offscreen height in pixels */
- s16 total_x; /* frame buffer width in pixels */
- s16 total_y; /* frame buffer height in pixels */
- s32 bits_per_pixel; /* bits/pixel device has configured */
- s32 bits_used; /* bits which can be accessed */
- s32 planes; /* number of fb planes in system */
- u8 dev_name[STI_DEV_NAME_LENGTH]; /* null terminated product name */
- u32 attributes; /* flags denoting attributes */
- u32 ext_ptr; /* pointer to future data */
-};
-
-struct sti_rom {
- u8 type[4];
- u8 res004;
- u8 num_mons;
- u8 revno[2];
- u32 graphics_id[2];
-
- u32 font_start;
- u32 statesize;
- u32 last_addr;
- u32 region_list;
-
- u16 reentsize;
- u16 maxtime;
- u32 mon_tbl_addr;
- u32 user_data_addr;
- u32 sti_mem_req;
-
- u32 user_data_size;
- u16 power;
- u8 bus_support;
- u8 ext_bus_support;
- u8 alt_code_type;
- u8 ext_dd_struct[3];
- u32 cfb_addr;
-
- u32 init_graph;
- u32 state_mgmt;
- u32 font_unpmv;
- u32 block_move;
- u32 self_test;
- u32 excep_hdlr;
- u32 inq_conf;
- u32 set_cm_entry;
- u32 dma_ctrl;
- u8 res040[7 * 4];
-
- u32 init_graph_addr;
- u32 state_mgmt_addr;
- u32 font_unp_addr;
- u32 block_move_addr;
- u32 self_test_addr;
- u32 excep_hdlr_addr;
- u32 inq_conf_addr;
- u32 set_cm_entry_addr;
- u32 image_unpack_addr;
- u32 pa_risx_addrs[7];
-};
-
-struct sti_rom_font {
- u16 first_char;
- u16 last_char;
- u8 width;
- u8 height;
- u8 font_type; /* language type */
- u8 bytes_per_char;
- u32 next_font;
- u8 underline_height;
- u8 underline_pos;
- u8 res008[2];
-};
-
-/* sticore internal font handling */
-
-struct sti_cooked_font {
- struct sti_rom_font *raw; /* native ptr for STI functions */
- void *raw_ptr; /* kmalloc'ed font data */
- struct sti_cooked_font *next_font;
- int height, width;
- int refcount;
- u32 crc;
-};
-
-struct sti_cooked_rom {
- struct sti_rom *raw;
- struct sti_cooked_font *font_start;
-};
-
-/* STI font printing function structs */
-
-struct sti_font_inptr {
- u32 font_start_addr; /* address of font start */
- s16 index; /* index into font table of character */
- u8 fg_color; /* foreground color of character */
- u8 bg_color; /* background color of character */
- s16 dest_x; /* X location of character upper left */
- s16 dest_y; /* Y location of character upper left */
- u32 future_ptr; /* pointer to future data */
-};
-
-struct sti_font_flags {
- u32 wait : 1; /* should routine idle wait or not */
- u32 non_text : 1; /* font unpack/move in non_text planes =1, text =0 */
- u32 pad : 30; /* pad to word boundary */
- u32 future_ptr; /* pointer to future data */
-};
-
-struct sti_font_outptr {
- s32 errno; /* error number on failure */
- u32 future_ptr; /* pointer to future data */
-};
-
-/* STI blockmove structs */
-
-struct sti_blkmv_flags {
- u32 wait : 1; /* should routine idle wait or not */
- u32 color : 1; /* change color during move? */
- u32 clear : 1; /* clear during move? */
- u32 non_text : 1; /* block move in non_text planes =1, text =0 */
- u32 pad : 28; /* pad to word boundary */
- u32 future_ptr; /* pointer to future data */
-};
-
-struct sti_blkmv_inptr {
- u8 fg_color; /* foreground color after move */
- u8 bg_color; /* background color after move */
- s16 src_x; /* source upper left pixel x location */
- s16 src_y; /* source upper left pixel y location */
- s16 dest_x; /* dest upper left pixel x location */
- s16 dest_y; /* dest upper left pixel y location */
- s16 width; /* block width in pixels */
- s16 height; /* block height in pixels */
- u32 future_ptr; /* pointer to future data */
-};
-
-struct sti_blkmv_outptr {
- s32 errno; /* error number on failure */
- u32 future_ptr; /* pointer to future data */
-};
-
-
-/* sti_all_data is an internal struct which needs to be allocated in
- * low memory (< 4GB) if STI is used with 32bit STI on a 64bit kernel */
-
-struct sti_all_data {
- struct sti_glob_cfg glob_cfg;
- struct sti_glob_cfg_ext glob_cfg_ext;
-
- struct sti_conf_inptr inq_inptr;
- struct sti_conf_outptr inq_outptr; /* configuration */
- struct sti_conf_outptr_ext inq_outptr_ext;
-
- struct sti_init_inptr_ext init_inptr_ext;
- struct sti_init_inptr init_inptr;
- struct sti_init_outptr init_outptr;
-
- struct sti_blkmv_inptr blkmv_inptr;
- struct sti_blkmv_outptr blkmv_outptr;
-
- struct sti_font_inptr font_inptr;
- struct sti_font_outptr font_outptr;
-
- /* leave as last entries */
- unsigned long save_addr[1024 / sizeof(unsigned long)];
- /* min 256 bytes which is STI default, max sti->sti_mem_request */
- unsigned long sti_mem_addr[256 / sizeof(unsigned long)];
- /* do not add something below here ! */
-};
-
-/* internal generic STI struct */
-
-struct sti_struct {
- spinlock_t lock;
-
- /* char **mon_strings; */
- int sti_mem_request;
- u32 graphics_id[2];
-
- struct sti_cooked_rom *rom;
-
- unsigned long font_unpmv;
- unsigned long block_move;
- unsigned long init_graph;
- unsigned long inq_conf;
-
- /* all following fields are initialized by the generic routines */
- int text_planes;
- region_t regions[STI_REGION_MAX];
- unsigned long regions_phys[STI_REGION_MAX];
-
- struct sti_glob_cfg *glob_cfg; /* points into sti_all_data */
-
- int wordmode;
- struct sti_cooked_font *font; /* ptr to selected font (cooked) */
-
- struct pci_dev *pd;
-
- /* PCI data structures (pg. 17ff from sti.pdf) */
- u8 rm_entry[16]; /* pci region mapper array == pci config space offset */
-
- /* pointer to the fb_info where this STI device is used */
- struct fb_info *info;
-
- /* pointer to all internal data */
- struct sti_all_data *sti_data;
-
- /* pa_path of this device */
- char pa_path[24];
-};
-
-
-/* sticore interface functions */
-
-struct sti_struct *sti_get_rom(unsigned int index); /* 0: default sti */
-void sti_font_convert_bytemode(struct sti_struct *sti, struct sti_cooked_font *f);
-
-
-/* sticore main function to call STI firmware */
-
-int sti_call(const struct sti_struct *sti, unsigned long func,
- const void *flags, void *inptr, void *outptr,
- struct sti_glob_cfg *glob_cfg);
-
-
-/* functions to call the STI ROM directly */
-
-void sti_putc(struct sti_struct *sti, int c, int y, int x,
- struct sti_cooked_font *font);
-void sti_set(struct sti_struct *sti, int src_y, int src_x,
- int height, int width, u8 color);
-void sti_clear(struct sti_struct *sti, int src_y, int src_x,
- int height, int width, int c, struct sti_cooked_font *font);
-void sti_bmove(struct sti_struct *sti, int src_y, int src_x,
- int dst_y, int dst_x, int height, int width,
- struct sti_cooked_font *font);
-
-#endif /* STICORE_H */
#include <asm/grfioctl.h> /* for HP-UX compatibility */
#include <linux/uaccess.h>
-#include "sticore.h"
+#include <video/sticore.h>
/* REGION_BASE(fb_info, index) returns the virtual address for region <index> */
#define REGION_BASE(fb_info, index) \
--- /dev/null
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * linux/drivers/video/console/sticore.c -
+ * core code for console driver using HP's STI firmware
+ *
+ * Copyright (C) 2000 Philipp Rumpf <prumpf@tux.org>
+ * Copyright (C) 2001-2020 Helge Deller <deller@gmx.de>
+ * Copyright (C) 2001-2002 Thomas Bogendoerfer <tsbogend@alpha.franken.de>
+ *
+ * TODO:
+ * - call STI in virtual mode rather than in real mode
+ * - screen blanking with state_mgmt() in text mode STI ?
+ * - try to make it work on m68k hp workstations ;)
+ *
+ */
+
+#define pr_fmt(fmt) "%s: " fmt, KBUILD_MODNAME
+
+#include <linux/module.h>
+#include <linux/types.h>
+#include <linux/kernel.h>
+#include <linux/slab.h>
+#include <linux/init.h>
+#include <linux/pci.h>
+#include <linux/font.h>
+
+#include <asm/hardware.h>
+#include <asm/page.h>
+#include <asm/parisc-device.h>
+#include <asm/pdc.h>
+#include <asm/cacheflush.h>
+#include <asm/grfioctl.h>
+#include <asm/fb.h>
+
+#include <video/sticore.h>
+
+#define STI_DRIVERVERSION "Version 0.9c"
+
+static struct sti_struct *default_sti __read_mostly;
+
+/* number of STI ROMS found and their ptrs to each struct */
+static int num_sti_roms __read_mostly;
+static struct sti_struct *sti_roms[MAX_STI_ROMS] __read_mostly;
+
+
+/* The colour indices used by STI are
+ * 0 - Black
+ * 1 - White
+ * 2 - Red
+ * 3 - Yellow/Brown
+ * 4 - Green
+ * 5 - Cyan
+ * 6 - Blue
+ * 7 - Magenta
+ *
+ * So we have the same colours as VGA (basically one bit each for R, G, B),
+ * but have to translate them, anyway. */
+
+static const u8 col_trans[8] = {
+ 0, 6, 4, 5,
+ 2, 7, 3, 1
+};
+
+#define c_fg(sti, c) col_trans[((c>> 8) & 7)]
+#define c_bg(sti, c) col_trans[((c>>11) & 7)]
+#define c_index(sti, c) ((c) & 0xff)
+
+static const struct sti_init_flags default_init_flags = {
+ .wait = STI_WAIT,
+ .reset = 1,
+ .text = 1,
+ .nontext = 1,
+ .no_chg_bet = 1,
+ .no_chg_bei = 1,
+ .init_cmap_tx = 1,
+};
+
+static int sti_init_graph(struct sti_struct *sti)
+{
+ struct sti_init_inptr *inptr = &sti->sti_data->init_inptr;
+ struct sti_init_inptr_ext *inptr_ext = &sti->sti_data->init_inptr_ext;
+ struct sti_init_outptr *outptr = &sti->sti_data->init_outptr;
+ unsigned long flags;
+ int ret, err;
+
+ spin_lock_irqsave(&sti->lock, flags);
+
+ memset(inptr, 0, sizeof(*inptr));
+ inptr->text_planes = 3; /* # of text planes (max 3 for STI) */
+ memset(inptr_ext, 0, sizeof(*inptr_ext));
+ inptr->ext_ptr = STI_PTR(inptr_ext);
+ outptr->errno = 0;
+
+ ret = sti_call(sti, sti->init_graph, &default_init_flags, inptr,
+ outptr, sti->glob_cfg);
+
+ if (ret >= 0)
+ sti->text_planes = outptr->text_planes;
+ err = outptr->errno;
+
+ spin_unlock_irqrestore(&sti->lock, flags);
+
+ if (ret < 0) {
+ pr_err("STI init_graph failed (ret %d, errno %d)\n", ret, err);
+ return -1;
+ }
+
+ return 0;
+}
+
+static const struct sti_conf_flags default_conf_flags = {
+ .wait = STI_WAIT,
+};
+
+static void sti_inq_conf(struct sti_struct *sti)
+{
+ struct sti_conf_inptr *inptr = &sti->sti_data->inq_inptr;
+ struct sti_conf_outptr *outptr = &sti->sti_data->inq_outptr;
+ unsigned long flags;
+ s32 ret;
+
+ outptr->ext_ptr = STI_PTR(&sti->sti_data->inq_outptr_ext);
+
+ do {
+ spin_lock_irqsave(&sti->lock, flags);
+ memset(inptr, 0, sizeof(*inptr));
+ ret = sti_call(sti, sti->inq_conf, &default_conf_flags,
+ inptr, outptr, sti->glob_cfg);
+ spin_unlock_irqrestore(&sti->lock, flags);
+ } while (ret == 1);
+}
+
+static const struct sti_font_flags default_font_flags = {
+ .wait = STI_WAIT,
+ .non_text = 0,
+};
+
+void
+sti_putc(struct sti_struct *sti, int c, int y, int x,
+ struct sti_cooked_font *font)
+{
+ struct sti_font_inptr *inptr = &sti->sti_data->font_inptr;
+ struct sti_font_inptr inptr_default = {
+ .font_start_addr = STI_PTR(font->raw),
+ .index = c_index(sti, c),
+ .fg_color = c_fg(sti, c),
+ .bg_color = c_bg(sti, c),
+ .dest_x = x * font->width,
+ .dest_y = y * font->height,
+ };
+ struct sti_font_outptr *outptr = &sti->sti_data->font_outptr;
+ s32 ret;
+ unsigned long flags;
+
+ do {
+ spin_lock_irqsave(&sti->lock, flags);
+ *inptr = inptr_default;
+ ret = sti_call(sti, sti->font_unpmv, &default_font_flags,
+ inptr, outptr, sti->glob_cfg);
+ spin_unlock_irqrestore(&sti->lock, flags);
+ } while (ret == 1);
+}
+
+static const struct sti_blkmv_flags clear_blkmv_flags = {
+ .wait = STI_WAIT,
+ .color = 1,
+ .clear = 1,
+};
+
+void
+sti_set(struct sti_struct *sti, int src_y, int src_x,
+ int height, int width, u8 color)
+{
+ struct sti_blkmv_inptr *inptr = &sti->sti_data->blkmv_inptr;
+ struct sti_blkmv_inptr inptr_default = {
+ .fg_color = color,
+ .bg_color = color,
+ .src_x = src_x,
+ .src_y = src_y,
+ .dest_x = src_x,
+ .dest_y = src_y,
+ .width = width,
+ .height = height,
+ };
+ struct sti_blkmv_outptr *outptr = &sti->sti_data->blkmv_outptr;
+ s32 ret;
+ unsigned long flags;
+
+ do {
+ spin_lock_irqsave(&sti->lock, flags);
+ *inptr = inptr_default;
+ ret = sti_call(sti, sti->block_move, &clear_blkmv_flags,
+ inptr, outptr, sti->glob_cfg);
+ spin_unlock_irqrestore(&sti->lock, flags);
+ } while (ret == 1);
+}
+
+void
+sti_clear(struct sti_struct *sti, int src_y, int src_x,
+ int height, int width, int c, struct sti_cooked_font *font)
+{
+ struct sti_blkmv_inptr *inptr = &sti->sti_data->blkmv_inptr;
+ struct sti_blkmv_inptr inptr_default = {
+ .fg_color = c_fg(sti, c),
+ .bg_color = c_bg(sti, c),
+ .src_x = src_x * font->width,
+ .src_y = src_y * font->height,
+ .dest_x = src_x * font->width,
+ .dest_y = src_y * font->height,
+ .width = width * font->width,
+ .height = height * font->height,
+ };
+ struct sti_blkmv_outptr *outptr = &sti->sti_data->blkmv_outptr;
+ s32 ret;
+ unsigned long flags;
+
+ do {
+ spin_lock_irqsave(&sti->lock, flags);
+ *inptr = inptr_default;
+ ret = sti_call(sti, sti->block_move, &clear_blkmv_flags,
+ inptr, outptr, sti->glob_cfg);
+ spin_unlock_irqrestore(&sti->lock, flags);
+ } while (ret == 1);
+}
+
+static const struct sti_blkmv_flags default_blkmv_flags = {
+ .wait = STI_WAIT,
+};
+
+void
+sti_bmove(struct sti_struct *sti, int src_y, int src_x,
+ int dst_y, int dst_x, int height, int width,
+ struct sti_cooked_font *font)
+{
+ struct sti_blkmv_inptr *inptr = &sti->sti_data->blkmv_inptr;
+ struct sti_blkmv_inptr inptr_default = {
+ .src_x = src_x * font->width,
+ .src_y = src_y * font->height,
+ .dest_x = dst_x * font->width,
+ .dest_y = dst_y * font->height,
+ .width = width * font->width,
+ .height = height * font->height,
+ };
+ struct sti_blkmv_outptr *outptr = &sti->sti_data->blkmv_outptr;
+ s32 ret;
+ unsigned long flags;
+
+ do {
+ spin_lock_irqsave(&sti->lock, flags);
+ *inptr = inptr_default;
+ ret = sti_call(sti, sti->block_move, &default_blkmv_flags,
+ inptr, outptr, sti->glob_cfg);
+ spin_unlock_irqrestore(&sti->lock, flags);
+ } while (ret == 1);
+}
+
+
+static void sti_flush(unsigned long start, unsigned long end)
+{
+ flush_icache_range(start, end);
+}
+
+static void sti_rom_copy(unsigned long base, unsigned long count, void *dest)
+{
+ unsigned long dest_start = (unsigned long) dest;
+
+ /* this still needs to be revisited (see arch/parisc/mm/init.c:246) ! */
+ while (count >= 4) {
+ count -= 4;
+ *(u32 *)dest = gsc_readl(base);
+ base += 4;
+ dest += 4;
+ }
+ while (count) {
+ count--;
+ *(u8 *)dest = gsc_readb(base);
+ base++;
+ dest++;
+ }
+
+ sti_flush(dest_start, (unsigned long)dest);
+}
+
+
+
+
+static char default_sti_path[21] __read_mostly;
+
+#ifndef MODULE
+static int __init sti_setup(char *str)
+{
+ if (str)
+ strscpy(default_sti_path, str, sizeof(default_sti_path));
+
+ return 1;
+}
+
+/* Assuming the machine has multiple STI consoles (=graphic cards) which
+ * all get detected by sticon, the user may define with the linux kernel
+ * parameter sti=<x> which of them will be the initial boot-console.
+ * <x> is a number between 0 and MAX_STI_ROMS, with 0 as the default
+ * STI screen.
+ */
+__setup("sti=", sti_setup);
+#endif
+
+
+
+static char *font_name;
+static int font_index,
+ font_height,
+ font_width;
+#ifndef MODULE
+static int sti_font_setup(char *str)
+{
+ /*
+ * The default font can be selected in various ways.
+ * a) sti_font=VGA8x16, sti_font=10x20, sti_font=10*20 selects
+ * an built-in Linux framebuffer font.
+ * b) sti_font=<index>, where index is (1..x) with 1 selecting
+ * the first HP STI ROM built-in font..
+ */
+
+ if (*str >= '0' && *str <= '9') {
+ char *x;
+
+ if ((x = strchr(str, 'x')) || (x = strchr(str, '*'))) {
+ font_height = simple_strtoul(str, NULL, 0);
+ font_width = simple_strtoul(x+1, NULL, 0);
+ } else {
+ font_index = simple_strtoul(str, NULL, 0);
+ }
+ } else {
+ font_name = str; /* fb font name */
+ }
+
+ return 1;
+}
+
+/* The optional linux kernel parameter "sti_font" defines which font
+ * should be used by the sticon driver to draw characters to the screen.
+ * Possible values are:
+ * - sti_font=<fb_fontname>:
+ * <fb_fontname> is the name of one of the linux-kernel built-in
+ * framebuffer font names (e.g. VGA8x16, SUN22x18).
+ * This is only available if the fonts have been statically compiled
+ * in with e.g. the CONFIG_FONT_8x16 or CONFIG_FONT_SUN12x22 options.
+ * - sti_font=<number> (<number> = 1,2,3,...)
+ * most STI ROMs have built-in HP specific fonts, which can be selected
+ * by giving the desired number to the sticon driver.
+ * NOTE: This number is machine and STI ROM dependend.
+ * - sti_font=<height>x<width> (e.g. sti_font=16x8)
+ * <height> and <width> gives hints to the height and width of the
+ * font which the user wants. The sticon driver will try to use
+ * a font with this height and width, but if no suitable font is
+ * found, sticon will use the default 8x8 font.
+ */
+__setup("sti_font=", sti_font_setup);
+#endif
+
+
+
+static void sti_dump_globcfg(struct sti_glob_cfg *glob_cfg,
+ unsigned int sti_mem_request)
+{
+ struct sti_glob_cfg_ext *cfg;
+
+ pr_debug("%d text planes\n"
+ "%4d x %4d screen resolution\n"
+ "%4d x %4d offscreen\n"
+ "%4d x %4d layout\n"
+ "regions at %08x %08x %08x %08x\n"
+ "regions at %08x %08x %08x %08x\n"
+ "reent_lvl %d\n"
+ "save_addr %08x\n",
+ glob_cfg->text_planes,
+ glob_cfg->onscreen_x, glob_cfg->onscreen_y,
+ glob_cfg->offscreen_x, glob_cfg->offscreen_y,
+ glob_cfg->total_x, glob_cfg->total_y,
+ glob_cfg->region_ptrs[0], glob_cfg->region_ptrs[1],
+ glob_cfg->region_ptrs[2], glob_cfg->region_ptrs[3],
+ glob_cfg->region_ptrs[4], glob_cfg->region_ptrs[5],
+ glob_cfg->region_ptrs[6], glob_cfg->region_ptrs[7],
+ glob_cfg->reent_lvl,
+ glob_cfg->save_addr);
+
+ /* dump extended cfg */
+ cfg = PTR_STI((unsigned long)glob_cfg->ext_ptr);
+ pr_debug("monitor %d\n"
+ "in friendly mode: %d\n"
+ "power consumption %d watts\n"
+ "freq ref %d\n"
+ "sti_mem_addr %08x (size=%d bytes)\n",
+ cfg->curr_mon,
+ cfg->friendly_boot,
+ cfg->power,
+ cfg->freq_ref,
+ cfg->sti_mem_addr, sti_mem_request);
+}
+
+static void sti_dump_outptr(struct sti_struct *sti)
+{
+ pr_debug("%d bits per pixel\n"
+ "%d used bits\n"
+ "%d planes\n"
+ "attributes %08x\n",
+ sti->sti_data->inq_outptr.bits_per_pixel,
+ sti->sti_data->inq_outptr.bits_used,
+ sti->sti_data->inq_outptr.planes,
+ sti->sti_data->inq_outptr.attributes);
+}
+
+static int sti_init_glob_cfg(struct sti_struct *sti, unsigned long rom_address,
+ unsigned long hpa)
+{
+ struct sti_glob_cfg *glob_cfg;
+ struct sti_glob_cfg_ext *glob_cfg_ext;
+ void *save_addr;
+ void *sti_mem_addr;
+ int i, size;
+
+ if (sti->sti_mem_request < 256)
+ sti->sti_mem_request = 256; /* STI default */
+
+ size = sizeof(struct sti_all_data) + sti->sti_mem_request - 256;
+
+ sti->sti_data = kzalloc(size, STI_LOWMEM);
+ if (!sti->sti_data)
+ return -ENOMEM;
+
+ glob_cfg = &sti->sti_data->glob_cfg;
+ glob_cfg_ext = &sti->sti_data->glob_cfg_ext;
+ save_addr = &sti->sti_data->save_addr;
+ sti_mem_addr = &sti->sti_data->sti_mem_addr;
+
+ glob_cfg->ext_ptr = STI_PTR(glob_cfg_ext);
+ glob_cfg->save_addr = STI_PTR(save_addr);
+ for (i=0; i<8; i++) {
+ unsigned long newhpa, len;
+
+ if (sti->pd) {
+ unsigned char offs = sti->rm_entry[i];
+
+ if (offs == 0)
+ continue;
+ if (offs != PCI_ROM_ADDRESS &&
+ (offs < PCI_BASE_ADDRESS_0 ||
+ offs > PCI_BASE_ADDRESS_5)) {
+ pr_warn("STI pci region mapping for region %d (%02x) can't be mapped\n",
+ i,sti->rm_entry[i]);
+ continue;
+ }
+ newhpa = pci_resource_start (sti->pd, (offs - PCI_BASE_ADDRESS_0) / 4);
+ } else
+ newhpa = (i == 0) ? rom_address : hpa;
+
+ sti->regions_phys[i] =
+ REGION_OFFSET_TO_PHYS(sti->regions[i], newhpa);
+
+ len = sti->regions[i].region_desc.length * 4096;
+ if (len)
+ glob_cfg->region_ptrs[i] = sti->regions_phys[i];
+
+ pr_debug("region #%d: phys %08lx, region_ptr %08x, len=%lukB, "
+ "btlb=%d, sysonly=%d, cache=%d, last=%d\n",
+ i, sti->regions_phys[i], glob_cfg->region_ptrs[i],
+ len/1024,
+ sti->regions[i].region_desc.btlb,
+ sti->regions[i].region_desc.sys_only,
+ sti->regions[i].region_desc.cache,
+ sti->regions[i].region_desc.last);
+
+ /* last entry reached ? */
+ if (sti->regions[i].region_desc.last)
+ break;
+ }
+
+ if (++i<8 && sti->regions[i].region)
+ pr_warn("future ptr (0x%8x) not yet supported !\n",
+ sti->regions[i].region);
+
+ glob_cfg_ext->sti_mem_addr = STI_PTR(sti_mem_addr);
+
+ sti->glob_cfg = glob_cfg;
+
+ return 0;
+}
+
+#ifdef CONFIG_FONT_SUPPORT
+static struct sti_cooked_font *
+sti_select_fbfont(struct sti_cooked_rom *cooked_rom, const char *fbfont_name)
+{
+ const struct font_desc *fbfont = NULL;
+ unsigned int size, bpc;
+ void *dest;
+ struct sti_rom_font *nf;
+ struct sti_cooked_font *cooked_font;
+
+ if (fbfont_name && strlen(fbfont_name))
+ fbfont = find_font(fbfont_name);
+ if (!fbfont)
+ fbfont = get_default_font(1024,768, ~(u32)0, ~(u32)0);
+ if (!fbfont)
+ return NULL;
+
+ pr_info(" using %ux%u framebuffer font %s\n",
+ fbfont->width, fbfont->height, fbfont->name);
+
+ bpc = ((fbfont->width+7)/8) * fbfont->height;
+ size = bpc * fbfont->charcount;
+ size += sizeof(struct sti_rom_font);
+
+ nf = kzalloc(size, STI_LOWMEM);
+ if (!nf)
+ return NULL;
+
+ nf->first_char = 0;
+ nf->last_char = fbfont->charcount - 1;
+ nf->width = fbfont->width;
+ nf->height = fbfont->height;
+ nf->font_type = STI_FONT_HPROMAN8;
+ nf->bytes_per_char = bpc;
+ nf->next_font = 0;
+ nf->underline_height = 1;
+ nf->underline_pos = fbfont->height - nf->underline_height;
+
+ dest = nf;
+ dest += sizeof(struct sti_rom_font);
+ memcpy(dest, fbfont->data, bpc * fbfont->charcount);
+
+ cooked_font = kzalloc(sizeof(*cooked_font), GFP_KERNEL);
+ if (!cooked_font) {
+ kfree(nf);
+ return NULL;
+ }
+
+ cooked_font->raw = nf;
+ cooked_font->raw_ptr = nf;
+ cooked_font->next_font = NULL;
+
+ cooked_rom->font_start = cooked_font;
+
+ return cooked_font;
+}
+#else
+static struct sti_cooked_font *
+sti_select_fbfont(struct sti_cooked_rom *cooked_rom, const char *fbfont_name)
+{
+ return NULL;
+}
+#endif
+
+static void sti_dump_font(struct sti_cooked_font *font)
+{
+#ifdef STI_DUMP_FONT
+ unsigned char *p = (unsigned char *)font->raw;
+ int n;
+
+ p += sizeof(struct sti_rom_font);
+ pr_debug(" w %d h %d bpc %d\n", font->width, font->height,
+ font->raw->bytes_per_char);
+
+ for (n = 0; n < 256 * font->raw->bytes_per_char; n += 16, p += 16) {
+ pr_debug(" 0x%02x, 0x%02x, 0x%02x, 0x%02x, 0x%02x, 0x%02x,"
+ " 0x%02x, 0x%02x, 0x%02x, 0x%02x, 0x%02x, 0x%02x,"
+ " 0x%02x, 0x%02x, 0x%02x, 0x%02x,\n",
+ p[0], p[1], p[2], p[3], p[4], p[5], p[6], p[7], p[8],
+ p[9], p[10], p[11], p[12], p[13], p[14], p[15]);
+ }
+#endif
+}
+
+static int sti_search_font(struct sti_cooked_rom *rom, int height, int width)
+{
+ struct sti_cooked_font *font;
+ int i = 0;
+
+ for (font = rom->font_start; font; font = font->next_font, i++) {
+ if ((font->raw->width == width) &&
+ (font->raw->height == height))
+ return i;
+ }
+ return 0;
+}
+
+static struct sti_cooked_font *sti_select_font(struct sti_cooked_rom *rom)
+{
+ struct sti_cooked_font *font;
+ int i;
+
+ /* check for framebuffer-font first */
+ if (!font_index) {
+ font = sti_select_fbfont(rom, font_name);
+ if (font)
+ return font;
+ }
+
+ if (font_width && font_height)
+ font_index = sti_search_font(rom,
+ font_height, font_width);
+
+ for (font = rom->font_start, i = font_index - 1;
+ font && (i > 0);
+ font = font->next_font, i--);
+
+ if (font)
+ return font;
+ else
+ return rom->font_start;
+}
+
+
+static void sti_dump_rom(struct sti_struct *sti)
+{
+ struct sti_rom *rom = sti->rom->raw;
+ struct sti_cooked_font *font_start;
+ int nr;
+
+ pr_info(" id %04x-%04x, conforms to spec rev. %d.%02x\n",
+ rom->graphics_id[0],
+ rom->graphics_id[1],
+ rom->revno[0] >> 4,
+ rom->revno[0] & 0x0f);
+ pr_debug(" supports %d monitors\n", rom->num_mons);
+ pr_debug(" font start %08x\n", rom->font_start);
+ pr_debug(" region list %08x\n", rom->region_list);
+ pr_debug(" init_graph %08x\n", rom->init_graph);
+ pr_debug(" bus support %02x\n", rom->bus_support);
+ pr_debug(" ext bus support %02x\n", rom->ext_bus_support);
+ pr_debug(" alternate code type %d\n", rom->alt_code_type);
+
+ font_start = sti->rom->font_start;
+ nr = 0;
+ while (font_start) {
+ struct sti_rom_font *f = font_start->raw;
+
+ pr_info(" built-in font #%d: size %dx%d, chars %d-%d, bpc %d\n", ++nr,
+ f->width, f->height,
+ f->first_char, f->last_char, f->bytes_per_char);
+ font_start = font_start->next_font;
+ }
+}
+
+
+static int sti_cook_fonts(struct sti_cooked_rom *cooked_rom,
+ struct sti_rom *raw_rom)
+{
+ struct sti_rom_font *raw_font, *font_start;
+ struct sti_cooked_font *cooked_font;
+
+ cooked_font = kzalloc(sizeof(*cooked_font), GFP_KERNEL);
+ if (!cooked_font)
+ return 0;
+
+ cooked_rom->font_start = cooked_font;
+
+ raw_font = ((void *)raw_rom) + (raw_rom->font_start);
+
+ font_start = raw_font;
+ cooked_font->raw = raw_font;
+
+ while (raw_font->next_font) {
+ raw_font = ((void *)font_start) + (raw_font->next_font);
+
+ cooked_font->next_font = kzalloc(sizeof(*cooked_font), GFP_KERNEL);
+ if (!cooked_font->next_font)
+ return 1;
+
+ cooked_font = cooked_font->next_font;
+
+ cooked_font->raw = raw_font;
+ }
+
+ cooked_font->next_font = NULL;
+ return 1;
+}
+
+#define BMODE_RELOCATE(offset) offset = (offset) / 4;
+#define BMODE_LAST_ADDR_OFFS 0x50
+
+void sti_font_convert_bytemode(struct sti_struct *sti, struct sti_cooked_font *f)
+{
+ unsigned char *n, *p, *q;
+ int size = f->raw->bytes_per_char * (f->raw->last_char + 1) + sizeof(struct sti_rom_font);
+ struct sti_rom_font *old_font;
+
+ if (sti->wordmode)
+ return;
+
+ old_font = f->raw_ptr;
+ n = kcalloc(4, size, STI_LOWMEM);
+ f->raw_ptr = n;
+ if (!n)
+ return;
+ p = n + 3;
+ q = (unsigned char *) f->raw;
+ while (size--) {
+ *p = *q++;
+ p += 4;
+ }
+ /* store new ptr to byte-mode font and delete old font */
+ f->raw = (struct sti_rom_font *) (n + 3);
+ kfree(old_font);
+}
+EXPORT_SYMBOL(sti_font_convert_bytemode);
+
+static void sti_bmode_rom_copy(unsigned long base, unsigned long count,
+ void *dest)
+{
+ unsigned long dest_start = (unsigned long) dest;
+
+ while (count) {
+ count--;
+ *(u8 *)dest = gsc_readl(base);
+ base += 4;
+ dest++;
+ }
+
+ sti_flush(dest_start, (unsigned long)dest);
+}
+
+static struct sti_rom *sti_get_bmode_rom (unsigned long address)
+{
+ struct sti_rom *raw;
+ u32 size;
+ struct sti_rom_font *raw_font, *font_start;
+
+ sti_bmode_rom_copy(address + BMODE_LAST_ADDR_OFFS, sizeof(size), &size);
+
+ size = (size+3) / 4;
+ raw = kmalloc(size, STI_LOWMEM);
+ if (raw) {
+ sti_bmode_rom_copy(address, size, raw);
+ memmove (&raw->res004, &raw->type[0], 0x3c);
+ raw->type[3] = raw->res004;
+
+ BMODE_RELOCATE (raw->region_list);
+ BMODE_RELOCATE (raw->font_start);
+
+ BMODE_RELOCATE (raw->init_graph);
+ BMODE_RELOCATE (raw->state_mgmt);
+ BMODE_RELOCATE (raw->font_unpmv);
+ BMODE_RELOCATE (raw->block_move);
+ BMODE_RELOCATE (raw->inq_conf);
+
+ raw_font = ((void *)raw) + raw->font_start;
+ font_start = raw_font;
+
+ while (raw_font->next_font) {
+ BMODE_RELOCATE (raw_font->next_font);
+ raw_font = ((void *)font_start) + raw_font->next_font;
+ }
+ }
+ return raw;
+}
+
+static struct sti_rom *sti_get_wmode_rom(unsigned long address)
+{
+ struct sti_rom *raw;
+ unsigned long size;
+
+ /* read the ROM size directly from the struct in ROM */
+ size = gsc_readl(address + offsetof(struct sti_rom,last_addr));
+
+ raw = kmalloc(size, STI_LOWMEM);
+ if (raw)
+ sti_rom_copy(address, size, raw);
+
+ return raw;
+}
+
+static int sti_read_rom(int wordmode, struct sti_struct *sti,
+ unsigned long address)
+{
+ struct sti_cooked_rom *cooked;
+ struct sti_rom *raw = NULL;
+ unsigned long revno;
+
+ cooked = kmalloc(sizeof *cooked, GFP_KERNEL);
+ if (!cooked)
+ goto out_err;
+
+ if (wordmode)
+ raw = sti_get_wmode_rom (address);
+ else
+ raw = sti_get_bmode_rom (address);
+
+ if (!raw)
+ goto out_err;
+
+ if (!sti_cook_fonts(cooked, raw)) {
+ pr_warn("No font found for STI at %08lx\n", address);
+ goto out_err;
+ }
+
+ if (raw->region_list)
+ memcpy(sti->regions, ((void *)raw)+raw->region_list, sizeof(sti->regions));
+
+ address = (unsigned long) STI_PTR(raw);
+
+ pr_info("STI %s ROM supports 32 %sbit firmware functions.\n",
+ wordmode ? "word mode" : "byte mode",
+ raw->alt_code_type == ALT_CODE_TYPE_PA_RISC_64
+ ? "and 64 " : "");
+
+ sti->font_unpmv = address + (raw->font_unpmv & 0x03ffffff);
+ sti->block_move = address + (raw->block_move & 0x03ffffff);
+ sti->init_graph = address + (raw->init_graph & 0x03ffffff);
+ sti->inq_conf = address + (raw->inq_conf & 0x03ffffff);
+
+ sti->rom = cooked;
+ sti->rom->raw = raw;
+ sti_dump_rom(sti);
+
+ sti->wordmode = wordmode;
+ sti->font = sti_select_font(sti->rom);
+ sti->font->width = sti->font->raw->width;
+ sti->font->height = sti->font->raw->height;
+ sti_font_convert_bytemode(sti, sti->font);
+ sti_dump_font(sti->font);
+
+ sti->sti_mem_request = raw->sti_mem_req;
+ sti->graphics_id[0] = raw->graphics_id[0];
+ sti->graphics_id[1] = raw->graphics_id[1];
+
+ /* check if the ROM routines in this card are compatible */
+ if (wordmode || sti->graphics_id[1] != 0x09A02587)
+ goto ok;
+
+ revno = (raw->revno[0] << 8) | raw->revno[1];
+
+ switch (sti->graphics_id[0]) {
+ case S9000_ID_HCRX:
+ /* HyperA or HyperB ? */
+ if (revno == 0x8408 || revno == 0x840b)
+ goto msg_not_supported;
+ break;
+ case CRT_ID_THUNDER:
+ if (revno == 0x8509)
+ goto msg_not_supported;
+ break;
+ case CRT_ID_THUNDER2:
+ if (revno == 0x850c)
+ goto msg_not_supported;
+ }
+ok:
+ return 1;
+
+msg_not_supported:
+ pr_warn("Sorry, this GSC/STI card is not yet supported.\n");
+ pr_warn("Please see https://parisc.wiki.kernel.org/"
+ "index.php/Graphics_howto for more info.\n");
+ /* fall through */
+out_err:
+ kfree(raw);
+ kfree(cooked);
+ return 0;
+}
+
+static struct sti_struct *sti_try_rom_generic(unsigned long address,
+ unsigned long hpa,
+ struct pci_dev *pd)
+{
+ struct sti_struct *sti;
+ int ok;
+ u32 sig;
+
+ if (num_sti_roms >= MAX_STI_ROMS) {
+ pr_warn("maximum number of STI ROMS reached !\n");
+ return NULL;
+ }
+
+ sti = kzalloc(sizeof(*sti), GFP_KERNEL);
+ if (!sti)
+ return NULL;
+
+ spin_lock_init(&sti->lock);
+
+test_rom:
+ /* if we can't read the ROM, bail out early. Not being able
+ * to read the hpa is okay, for romless sti */
+ if (pdc_add_valid(address))
+ goto out_err;
+
+ sig = gsc_readl(address);
+
+ /* check for a PCI ROM structure */
+ if ((le32_to_cpu(sig)==0xaa55)) {
+ unsigned int i, rm_offset;
+ u32 *rm;
+ i = gsc_readl(address+0x04);
+ if (i != 1) {
+ /* The ROM could have multiple architecture
+ * dependent images (e.g. i386, parisc,...) */
+ pr_warn("PCI ROM is not a STI ROM type image (0x%8x)\n", i);
+ goto out_err;
+ }
+
+ sti->pd = pd;
+
+ i = gsc_readl(address+0x0c);
+ pr_debug("PCI ROM size (from header) = %d kB\n",
+ le16_to_cpu(i>>16)*512/1024);
+ rm_offset = le16_to_cpu(i & 0xffff);
+ if (rm_offset) {
+ /* read 16 bytes from the pci region mapper array */
+ rm = (u32*) &sti->rm_entry;
+ *rm++ = gsc_readl(address+rm_offset+0x00);
+ *rm++ = gsc_readl(address+rm_offset+0x04);
+ *rm++ = gsc_readl(address+rm_offset+0x08);
+ *rm++ = gsc_readl(address+rm_offset+0x0c);
+ }
+
+ address += le32_to_cpu(gsc_readl(address+8));
+ pr_debug("sig %04x, PCI STI ROM at %08lx\n", sig, address);
+ goto test_rom;
+ }
+
+ ok = 0;
+
+ if ((sig & 0xff) == 0x01) {
+ pr_debug(" byte mode ROM at %08lx, hpa at %08lx\n",
+ address, hpa);
+ ok = sti_read_rom(0, sti, address);
+ }
+
+ if ((sig & 0xffff) == 0x0303) {
+ pr_debug(" word mode ROM at %08lx, hpa at %08lx\n",
+ address, hpa);
+ ok = sti_read_rom(1, sti, address);
+ }
+
+ if (!ok)
+ goto out_err;
+
+ if (sti_init_glob_cfg(sti, address, hpa))
+ goto out_err; /* not enough memory */
+
+ /* disable STI PCI ROM. ROM and card RAM overlap and
+ * leaving it enabled would force HPMCs
+ */
+ if (sti->pd) {
+ unsigned long rom_base;
+ rom_base = pci_resource_start(sti->pd, PCI_ROM_RESOURCE);
+ pci_write_config_dword(sti->pd, PCI_ROM_ADDRESS, rom_base & ~PCI_ROM_ADDRESS_ENABLE);
+ pr_debug("STI PCI ROM disabled\n");
+ }
+
+ if (sti_init_graph(sti))
+ goto out_err;
+
+ sti_inq_conf(sti);
+ sti_dump_globcfg(sti->glob_cfg, sti->sti_mem_request);
+ sti_dump_outptr(sti);
+
+ pr_info(" graphics card name: %s\n",
+ sti->sti_data->inq_outptr.dev_name);
+
+ sti_roms[num_sti_roms] = sti;
+ num_sti_roms++;
+
+ return sti;
+
+out_err:
+ kfree(sti);
+ return NULL;
+}
+
+static void sticore_check_for_default_sti(struct sti_struct *sti, char *path)
+{
+ pr_info(" located at [%s]\n", sti->pa_path);
+ if (strcmp (path, default_sti_path) == 0)
+ default_sti = sti;
+}
+
+/*
+ * on newer systems PDC gives the address of the ROM
+ * in the additional address field addr[1] while on
+ * older Systems the PDC stores it in page0->proc_sti
+ */
+static int __init sticore_pa_init(struct parisc_device *dev)
+{
+ struct sti_struct *sti = NULL;
+ int hpa = dev->hpa.start;
+
+ if (dev->num_addrs && dev->addr[0])
+ sti = sti_try_rom_generic(dev->addr[0], hpa, NULL);
+ if (!sti)
+ sti = sti_try_rom_generic(hpa, hpa, NULL);
+ if (!sti)
+ sti = sti_try_rom_generic(PAGE0->proc_sti, hpa, NULL);
+ if (!sti)
+ return 1;
+
+ print_pa_hwpath(dev, sti->pa_path);
+ sticore_check_for_default_sti(sti, sti->pa_path);
+ return 0;
+}
+
+
+static int sticore_pci_init(struct pci_dev *pd, const struct pci_device_id *ent)
+{
+#ifdef CONFIG_PCI
+ unsigned long fb_base, rom_base;
+ unsigned int fb_len, rom_len;
+ int err;
+ struct sti_struct *sti;
+
+ err = pci_enable_device(pd);
+ if (err < 0) {
+ dev_err(&pd->dev, "Cannot enable PCI device\n");
+ return err;
+ }
+
+ fb_base = pci_resource_start(pd, 0);
+ fb_len = pci_resource_len(pd, 0);
+ rom_base = pci_resource_start(pd, PCI_ROM_RESOURCE);
+ rom_len = pci_resource_len(pd, PCI_ROM_RESOURCE);
+ if (rom_base) {
+ pci_write_config_dword(pd, PCI_ROM_ADDRESS, rom_base | PCI_ROM_ADDRESS_ENABLE);
+ pr_debug("STI PCI ROM enabled at 0x%08lx\n", rom_base);
+ }
+
+ pr_info("STI PCI graphic ROM found at %08lx (%u kB), fb at %08lx (%u MB)\n",
+ rom_base, rom_len/1024, fb_base, fb_len/1024/1024);
+
+ pr_debug("Trying PCI STI ROM at %08lx, PCI hpa at %08lx\n",
+ rom_base, fb_base);
+
+ sti = sti_try_rom_generic(rom_base, fb_base, pd);
+ if (sti) {
+ print_pci_hwpath(pd, sti->pa_path);
+ sticore_check_for_default_sti(sti, sti->pa_path);
+ }
+
+ if (!sti) {
+ pr_warn("Unable to handle STI device '%s'\n", pci_name(pd));
+ return -ENODEV;
+ }
+#endif /* CONFIG_PCI */
+
+ return 0;
+}
+
+
+static void __exit sticore_pci_remove(struct pci_dev *pd)
+{
+ BUG();
+}
+
+
+static struct pci_device_id sti_pci_tbl[] = {
+ { PCI_DEVICE(PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_VISUALIZE_EG) },
+ { PCI_DEVICE(PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_VISUALIZE_FX6) },
+ { PCI_DEVICE(PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_VISUALIZE_FX4) },
+ { PCI_DEVICE(PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_VISUALIZE_FX2) },
+ { PCI_DEVICE(PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_VISUALIZE_FXE) },
+ { 0, } /* terminate list */
+};
+MODULE_DEVICE_TABLE(pci, sti_pci_tbl);
+
+static struct pci_driver pci_sti_driver = {
+ .name = "sti",
+ .id_table = sti_pci_tbl,
+ .probe = sticore_pci_init,
+ .remove = __exit_p(sticore_pci_remove),
+};
+
+static struct parisc_device_id sti_pa_tbl[] = {
+ { HPHW_FIO, HVERSION_REV_ANY_ID, HVERSION_ANY_ID, 0x00077 },
+ { HPHW_FIO, HVERSION_REV_ANY_ID, HVERSION_ANY_ID, 0x00085 },
+ { 0, }
+};
+MODULE_DEVICE_TABLE(parisc, sti_pa_tbl);
+
+static struct parisc_driver pa_sti_driver __refdata = {
+ .name = "sti",
+ .id_table = sti_pa_tbl,
+ .probe = sticore_pa_init,
+};
+
+
+/*
+ * sti_init_roms() - detects all STI ROMs and stores them in sti_roms[]
+ */
+
+static int sticore_initialized __read_mostly;
+
+static void sti_init_roms(void)
+{
+ if (sticore_initialized)
+ return;
+
+ sticore_initialized = 1;
+
+ pr_info("STI GSC/PCI core graphics driver "
+ STI_DRIVERVERSION "\n");
+
+ /* Register drivers for native & PCI cards */
+ register_parisc_driver(&pa_sti_driver);
+ WARN_ON(pci_register_driver(&pci_sti_driver));
+
+ /* if we didn't find the given default sti, take the first one */
+ if (!default_sti)
+ default_sti = sti_roms[0];
+
+}
+
+/*
+ * index = 0 gives default sti
+ * index > 0 gives other stis in detection order
+ */
+struct sti_struct * sti_get_rom(unsigned int index)
+{
+ if (!sticore_initialized)
+ sti_init_roms();
+
+ if (index == 0)
+ return default_sti;
+
+ if (index > num_sti_roms)
+ return NULL;
+
+ return sti_roms[index-1];
+}
+EXPORT_SYMBOL(sti_get_rom);
+
+
+int sti_call(const struct sti_struct *sti, unsigned long func,
+ const void *flags, void *inptr, void *outptr,
+ struct sti_glob_cfg *glob_cfg)
+{
+ unsigned long _flags = STI_PTR(flags);
+ unsigned long _inptr = STI_PTR(inptr);
+ unsigned long _outptr = STI_PTR(outptr);
+ unsigned long _glob_cfg = STI_PTR(glob_cfg);
+ int ret;
+
+#ifdef CONFIG_64BIT
+ /* Check for overflow when using 32bit STI on 64bit kernel. */
+ if (WARN_ONCE(_flags>>32 || _inptr>>32 || _outptr>>32 || _glob_cfg>>32,
+ "Out of 32bit-range pointers!"))
+ return -1;
+#endif
+
+ ret = pdc_sti_call(func, _flags, _inptr, _outptr, _glob_cfg);
+
+ return ret;
+}
+
+#if defined(CONFIG_FB_STI)
+/* check if given fb_info is the primary device */
+int fb_is_primary_device(struct fb_info *info)
+{
+ struct sti_struct *sti;
+
+ sti = sti_get_rom(0);
+
+ /* if no built-in graphics card found, allow any fb driver as default */
+ if (!sti)
+ return true;
+
+ /* return true if it's the default built-in framebuffer driver */
+ return (sti->info == info);
+}
+EXPORT_SYMBOL(fb_is_primary_device);
+#endif
+
+MODULE_AUTHOR("Philipp Rumpf, Helge Deller, Thomas Bogendoerfer");
+MODULE_DESCRIPTION("Core STI driver for HP's NGLE series graphics cards in HP PARISC machines");
+MODULE_LICENSE("GPL v2");
+
--- /dev/null
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef STICORE_H
+#define STICORE_H
+
+/* generic STI structures & functions */
+
+#define MAX_STI_ROMS 4 /* max no. of ROMs which this driver handles */
+
+#define STI_REGION_MAX 8 /* hardcoded STI constants */
+#define STI_DEV_NAME_LENGTH 32
+#define STI_MONITOR_MAX 256
+
+#define STI_FONT_HPROMAN8 1
+#define STI_FONT_KANA8 2
+
+#define ALT_CODE_TYPE_UNKNOWN 0x00 /* alt code type values */
+#define ALT_CODE_TYPE_PA_RISC_64 0x01
+
+/* The latency of the STI functions cannot really be reduced by setting
+ * this to 0; STI doesn't seem to be designed to allow calling a different
+ * function (or the same function with different arguments) after a
+ * function exited with 1 as return value.
+ *
+ * As all of the functions below could be called from interrupt context,
+ * we have to spin_lock_irqsave around the do { ret = bla(); } while(ret==1)
+ * block. Really bad latency there.
+ *
+ * Probably the best solution to all this is have the generic code manage
+ * the screen buffer and a kernel thread to call STI occasionally.
+ *
+ * Luckily, the frame buffer guys have the same problem so we can just wait
+ * for them to fix it and steal their solution. prumpf
+ */
+
+#include <asm/io.h>
+
+#define STI_WAIT 1
+
+#define STI_PTR(p) ( virt_to_phys(p) )
+#define PTR_STI(p) ( phys_to_virt((unsigned long)p) )
+
+#define sti_onscreen_x(sti) (sti->glob_cfg->onscreen_x)
+#define sti_onscreen_y(sti) (sti->glob_cfg->onscreen_y)
+
+/* sti_font_xy() use the native font ROM ! */
+#define sti_font_x(sti) (PTR_STI(sti->font)->width)
+#define sti_font_y(sti) (PTR_STI(sti->font)->height)
+
+#ifdef CONFIG_64BIT
+#define STI_LOWMEM (GFP_KERNEL | GFP_DMA)
+#else
+#define STI_LOWMEM (GFP_KERNEL)
+#endif
+
+
+/* STI function configuration structs */
+
+typedef union region {
+ struct {
+ u32 offset : 14; /* offset in 4kbyte page */
+ u32 sys_only : 1; /* don't map to user space */
+ u32 cache : 1; /* map to data cache */
+ u32 btlb : 1; /* map to block tlb */
+ u32 last : 1; /* last region in list */
+ u32 length : 14; /* length in 4kbyte page */
+ } region_desc;
+
+ u32 region; /* complete region value */
+} region_t;
+
+#define REGION_OFFSET_TO_PHYS( rt, hpa ) \
+ (((rt).region_desc.offset << 12) + (hpa))
+
+struct sti_glob_cfg_ext {
+ u8 curr_mon; /* current monitor configured */
+ u8 friendly_boot; /* in friendly boot mode */
+ s16 power; /* power calculation (in Watts) */
+ s32 freq_ref; /* frequency reference */
+ u32 sti_mem_addr; /* pointer to global sti memory (size=sti_mem_request) */
+ u32 future_ptr; /* pointer to future data */
+};
+
+struct sti_glob_cfg {
+ s32 text_planes; /* number of planes used for text */
+ s16 onscreen_x; /* screen width in pixels */
+ s16 onscreen_y; /* screen height in pixels */
+ s16 offscreen_x; /* offset width in pixels */
+ s16 offscreen_y; /* offset height in pixels */
+ s16 total_x; /* frame buffer width in pixels */
+ s16 total_y; /* frame buffer height in pixels */
+ u32 region_ptrs[STI_REGION_MAX]; /* region pointers */
+ s32 reent_lvl; /* storage for reentry level value */
+ u32 save_addr; /* where to save or restore reentrant state */
+ u32 ext_ptr; /* pointer to extended glob_cfg data structure */
+};
+
+
+/* STI init function structs */
+
+struct sti_init_flags {
+ u32 wait : 1; /* should routine idle wait or not */
+ u32 reset : 1; /* hard reset the device? */
+ u32 text : 1; /* turn on text display planes? */
+ u32 nontext : 1; /* turn on non-text display planes? */
+ u32 clear : 1; /* clear text display planes? */
+ u32 cmap_blk : 1; /* non-text planes cmap black? */
+ u32 enable_be_timer : 1; /* enable bus error timer */
+ u32 enable_be_int : 1; /* enable bus error timer interrupt */
+ u32 no_chg_tx : 1; /* don't change text settings */
+ u32 no_chg_ntx : 1; /* don't change non-text settings */
+ u32 no_chg_bet : 1; /* don't change berr timer settings */
+ u32 no_chg_bei : 1; /* don't change berr int settings */
+ u32 init_cmap_tx : 1; /* initialize cmap for text planes */
+ u32 cmt_chg : 1; /* change current monitor type */
+ u32 retain_ie : 1; /* don't allow reset to clear int enables */
+ u32 caller_bootrom : 1; /* set only by bootrom for each call */
+ u32 caller_kernel : 1; /* set only by kernel for each call */
+ u32 caller_other : 1; /* set only by non-[BR/K] caller */
+ u32 pad : 14; /* pad to word boundary */
+ u32 future_ptr; /* pointer to future data */
+};
+
+struct sti_init_inptr_ext {
+ u8 config_mon_type; /* configure to monitor type */
+ u8 pad[1]; /* pad to word boundary */
+ u16 inflight_data; /* inflight data possible on PCI */
+ u32 future_ptr; /* pointer to future data */
+};
+
+struct sti_init_inptr {
+ s32 text_planes; /* number of planes to use for text */
+ u32 ext_ptr; /* pointer to extended init_graph inptr data structure*/
+};
+
+
+struct sti_init_outptr {
+ s32 errno; /* error number on failure */
+ s32 text_planes; /* number of planes used for text */
+ u32 future_ptr; /* pointer to future data */
+};
+
+
+
+/* STI configuration function structs */
+
+struct sti_conf_flags {
+ u32 wait : 1; /* should routine idle wait or not */
+ u32 pad : 31; /* pad to word boundary */
+ u32 future_ptr; /* pointer to future data */
+};
+
+struct sti_conf_inptr {
+ u32 future_ptr; /* pointer to future data */
+};
+
+struct sti_conf_outptr_ext {
+ u32 crt_config[3]; /* hardware specific X11/OGL information */
+ u32 crt_hdw[3];
+ u32 future_ptr;
+};
+
+struct sti_conf_outptr {
+ s32 errno; /* error number on failure */
+ s16 onscreen_x; /* screen width in pixels */
+ s16 onscreen_y; /* screen height in pixels */
+ s16 offscreen_x; /* offscreen width in pixels */
+ s16 offscreen_y; /* offscreen height in pixels */
+ s16 total_x; /* frame buffer width in pixels */
+ s16 total_y; /* frame buffer height in pixels */
+ s32 bits_per_pixel; /* bits/pixel device has configured */
+ s32 bits_used; /* bits which can be accessed */
+ s32 planes; /* number of fb planes in system */
+ u8 dev_name[STI_DEV_NAME_LENGTH]; /* null terminated product name */
+ u32 attributes; /* flags denoting attributes */
+ u32 ext_ptr; /* pointer to future data */
+};
+
+struct sti_rom {
+ u8 type[4];
+ u8 res004;
+ u8 num_mons;
+ u8 revno[2];
+ u32 graphics_id[2];
+
+ u32 font_start;
+ u32 statesize;
+ u32 last_addr;
+ u32 region_list;
+
+ u16 reentsize;
+ u16 maxtime;
+ u32 mon_tbl_addr;
+ u32 user_data_addr;
+ u32 sti_mem_req;
+
+ u32 user_data_size;
+ u16 power;
+ u8 bus_support;
+ u8 ext_bus_support;
+ u8 alt_code_type;
+ u8 ext_dd_struct[3];
+ u32 cfb_addr;
+
+ u32 init_graph;
+ u32 state_mgmt;
+ u32 font_unpmv;
+ u32 block_move;
+ u32 self_test;
+ u32 excep_hdlr;
+ u32 inq_conf;
+ u32 set_cm_entry;
+ u32 dma_ctrl;
+ u8 res040[7 * 4];
+
+ u32 init_graph_addr;
+ u32 state_mgmt_addr;
+ u32 font_unp_addr;
+ u32 block_move_addr;
+ u32 self_test_addr;
+ u32 excep_hdlr_addr;
+ u32 inq_conf_addr;
+ u32 set_cm_entry_addr;
+ u32 image_unpack_addr;
+ u32 pa_risx_addrs[7];
+};
+
+struct sti_rom_font {
+ u16 first_char;
+ u16 last_char;
+ u8 width;
+ u8 height;
+ u8 font_type; /* language type */
+ u8 bytes_per_char;
+ u32 next_font;
+ u8 underline_height;
+ u8 underline_pos;
+ u8 res008[2];
+};
+
+/* sticore internal font handling */
+
+struct sti_cooked_font {
+ struct sti_rom_font *raw; /* native ptr for STI functions */
+ void *raw_ptr; /* kmalloc'ed font data */
+ struct sti_cooked_font *next_font;
+ int height, width;
+ int refcount;
+ u32 crc;
+};
+
+struct sti_cooked_rom {
+ struct sti_rom *raw;
+ struct sti_cooked_font *font_start;
+};
+
+/* STI font printing function structs */
+
+struct sti_font_inptr {
+ u32 font_start_addr; /* address of font start */
+ s16 index; /* index into font table of character */
+ u8 fg_color; /* foreground color of character */
+ u8 bg_color; /* background color of character */
+ s16 dest_x; /* X location of character upper left */
+ s16 dest_y; /* Y location of character upper left */
+ u32 future_ptr; /* pointer to future data */
+};
+
+struct sti_font_flags {
+ u32 wait : 1; /* should routine idle wait or not */
+ u32 non_text : 1; /* font unpack/move in non_text planes =1, text =0 */
+ u32 pad : 30; /* pad to word boundary */
+ u32 future_ptr; /* pointer to future data */
+};
+
+struct sti_font_outptr {
+ s32 errno; /* error number on failure */
+ u32 future_ptr; /* pointer to future data */
+};
+
+/* STI blockmove structs */
+
+struct sti_blkmv_flags {
+ u32 wait : 1; /* should routine idle wait or not */
+ u32 color : 1; /* change color during move? */
+ u32 clear : 1; /* clear during move? */
+ u32 non_text : 1; /* block move in non_text planes =1, text =0 */
+ u32 pad : 28; /* pad to word boundary */
+ u32 future_ptr; /* pointer to future data */
+};
+
+struct sti_blkmv_inptr {
+ u8 fg_color; /* foreground color after move */
+ u8 bg_color; /* background color after move */
+ s16 src_x; /* source upper left pixel x location */
+ s16 src_y; /* source upper left pixel y location */
+ s16 dest_x; /* dest upper left pixel x location */
+ s16 dest_y; /* dest upper left pixel y location */
+ s16 width; /* block width in pixels */
+ s16 height; /* block height in pixels */
+ u32 future_ptr; /* pointer to future data */
+};
+
+struct sti_blkmv_outptr {
+ s32 errno; /* error number on failure */
+ u32 future_ptr; /* pointer to future data */
+};
+
+
+/* sti_all_data is an internal struct which needs to be allocated in
+ * low memory (< 4GB) if STI is used with 32bit STI on a 64bit kernel */
+
+struct sti_all_data {
+ struct sti_glob_cfg glob_cfg;
+ struct sti_glob_cfg_ext glob_cfg_ext;
+
+ struct sti_conf_inptr inq_inptr;
+ struct sti_conf_outptr inq_outptr; /* configuration */
+ struct sti_conf_outptr_ext inq_outptr_ext;
+
+ struct sti_init_inptr_ext init_inptr_ext;
+ struct sti_init_inptr init_inptr;
+ struct sti_init_outptr init_outptr;
+
+ struct sti_blkmv_inptr blkmv_inptr;
+ struct sti_blkmv_outptr blkmv_outptr;
+
+ struct sti_font_inptr font_inptr;
+ struct sti_font_outptr font_outptr;
+
+ /* leave as last entries */
+ unsigned long save_addr[1024 / sizeof(unsigned long)];
+ /* min 256 bytes which is STI default, max sti->sti_mem_request */
+ unsigned long sti_mem_addr[256 / sizeof(unsigned long)];
+ /* do not add something below here ! */
+};
+
+/* internal generic STI struct */
+
+struct sti_struct {
+ spinlock_t lock;
+
+ /* char **mon_strings; */
+ int sti_mem_request;
+ u32 graphics_id[2];
+
+ struct sti_cooked_rom *rom;
+
+ unsigned long font_unpmv;
+ unsigned long block_move;
+ unsigned long init_graph;
+ unsigned long inq_conf;
+
+ /* all following fields are initialized by the generic routines */
+ int text_planes;
+ region_t regions[STI_REGION_MAX];
+ unsigned long regions_phys[STI_REGION_MAX];
+
+ struct sti_glob_cfg *glob_cfg; /* points into sti_all_data */
+
+ int wordmode;
+ struct sti_cooked_font *font; /* ptr to selected font (cooked) */
+
+ struct pci_dev *pd;
+
+ /* PCI data structures (pg. 17ff from sti.pdf) */
+ u8 rm_entry[16]; /* pci region mapper array == pci config space offset */
+
+ /* pointer to the fb_info where this STI device is used */
+ struct fb_info *info;
+
+ /* pointer to all internal data */
+ struct sti_all_data *sti_data;
+
+ /* pa_path of this device */
+ char pa_path[24];
+};
+
+
+/* sticore interface functions */
+
+struct sti_struct *sti_get_rom(unsigned int index); /* 0: default sti */
+void sti_font_convert_bytemode(struct sti_struct *sti, struct sti_cooked_font *f);
+
+
+/* sticore main function to call STI firmware */
+
+int sti_call(const struct sti_struct *sti, unsigned long func,
+ const void *flags, void *inptr, void *outptr,
+ struct sti_glob_cfg *glob_cfg);
+
+
+/* functions to call the STI ROM directly */
+
+void sti_putc(struct sti_struct *sti, int c, int y, int x,
+ struct sti_cooked_font *font);
+void sti_set(struct sti_struct *sti, int src_y, int src_x,
+ int height, int width, u8 color);
+void sti_clear(struct sti_struct *sti, int src_y, int src_x,
+ int height, int width, int c, struct sti_cooked_font *font);
+void sti_bmove(struct sti_struct *sti, int src_y, int src_x,
+ int dst_y, int dst_x, int height, int width,
+ struct sti_cooked_font *font);
+
+#endif /* STICORE_H */
projects / linux-2.6-microblaze.git / commitdiff