patch-2.4.20 linux-2.4.20/drivers/video/sti/sticore.c
Next file: linux-2.4.20/drivers/video/sti/sticore.h
Previous file: linux-2.4.20/drivers/video/sti/sticon.c
Back to the patch index
Back to the overall index
- Lines: 1052
- Date:
Thu Nov 28 15:53:15 2002
- Orig file:
linux-2.4.19/drivers/video/sti/sticore.c
- Orig date:
Wed Dec 31 16:00:00 1969
diff -urN linux-2.4.19/drivers/video/sti/sticore.c linux-2.4.20/drivers/video/sti/sticore.c
@@ -0,0 +1,1051 @@
+/*
+ * linux/drivers/video/sti/sticore.c -
+ * core code for console driver using HP's STI firmware
+ *
+ * Copyright (C) 2000 Philipp Rumpf <prumpf@tux.org>
+ * Portions Copyright (C) 2001-2002 Helge Deller <deller@gmx.de>
+ * Portions 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 ;)
+ * - clean up the cache flushing functions
+ *
+ */
+
+#include <linux/config.h>
+#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 <video/font.h>
+
+#include <asm/pgalloc.h>
+#include <asm/hardware.h>
+
+#include "sticore.h"
+
+#define STI_DRIVERVERSION "0.9"
+
+struct sti_struct *default_sti;
+
+static int num_sti_roms; /* # of STI ROMS found */
+static struct sti_struct *sti_roms[MAX_STI_ROMS]; /* ptr to each sti_struct */
+
+
+/* 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,
+};
+
+int
+sti_init_graph(struct sti_struct *sti)
+{
+ struct sti_init_inptr_ext inptr_ext = { 0, };
+ struct sti_init_inptr inptr = {
+ 3, /* # of text planes (3 is maximum for STI) */
+ STI_PTR(&inptr_ext)
+ };
+ struct sti_init_outptr outptr = { 0, };
+ unsigned long flags;
+ int ret;
+
+ spin_lock_irqsave(&sti->lock, flags);
+
+ ret = STI_CALL(sti->init_graph, &default_init_flags, &inptr,
+ &outptr, sti->glob_cfg);
+
+ spin_unlock_irqrestore(&sti->lock, flags);
+
+ if (ret < 0) {
+ printk(KERN_ERR "STI init_graph failed (ret %d, errno %d)\n",ret,outptr.errno);
+ return -1;
+ }
+
+ sti->text_planes = outptr.text_planes;
+ return 0;
+}
+
+static const struct sti_conf_flags default_conf_flags = {
+ wait: STI_WAIT,
+ };
+
+void
+sti_inq_conf(struct sti_struct *sti)
+{
+ struct sti_conf_inptr inptr = { 0 };
+ unsigned long flags;
+ s32 ret;
+
+ sti->outptr.ext_ptr = STI_PTR(&sti->outptr_ext);
+
+ do {
+ spin_lock_irqsave(&sti->lock, flags);
+ ret = STI_CALL(sti->inq_conf, &default_conf_flags,
+ &inptr, &sti->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_font_inptr inptr = {
+ STI_PTR(sti->font->raw),
+ c_index(sti, c), c_fg(sti, c), c_bg(sti, c),
+ x * sti->font_width, y * sti->font_height, 0
+ };
+ struct sti_font_outptr outptr = { 0, };
+ s32 ret;
+ unsigned long flags;
+
+ do {
+ spin_lock_irqsave(&sti->lock, flags);
+ ret = STI_CALL(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 = {
+ color, color,
+ src_x, src_y ,
+ src_x, src_y ,
+ width, height,
+ 0
+ };
+ struct sti_blkmv_outptr outptr = { 0, };
+ s32 ret;
+ unsigned long flags;
+
+ do {
+ spin_lock_irqsave(&sti->lock, flags);
+ ret = STI_CALL(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_blkmv_inptr inptr = {
+ c_fg(sti, c), c_bg(sti, c),
+ src_x * sti->font_width, src_y * sti->font_height,
+ src_x * sti->font_width, src_y * sti->font_height,
+ width * sti->font_width, height* sti->font_height,
+ 0
+ };
+ struct sti_blkmv_outptr outptr = { 0, };
+ s32 ret;
+ unsigned long flags;
+
+ do {
+ spin_lock_irqsave(&sti->lock, flags);
+ ret = STI_CALL(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_blkmv_inptr inptr = {
+ 0, 0,
+ src_x * sti->font_width, src_y * sti->font_height,
+ dst_x * sti->font_width, dst_y * sti->font_height,
+ width * sti->font_width, height* sti->font_height,
+ 0
+ };
+ struct sti_blkmv_outptr outptr = { 0, };
+ s32 ret;
+ unsigned long flags;
+
+ do {
+ spin_lock_irqsave(&sti->lock, flags);
+ ret = STI_CALL(sti->block_move, &default_blkmv_flags,
+ &inptr, &outptr, sti->glob_cfg);
+ spin_unlock_irqrestore(&sti->lock, flags);
+ } while (ret == 1);
+}
+
+
+void __init
+sti_rom_copy(unsigned long base, unsigned long count, void *dest)
+{
+ unsigned long dest_len = count;
+ 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 = __raw_readl(base);
+ base += 4;
+ dest += 4;
+ }
+ while (count) {
+ count--;
+ *(u8 *)dest = __raw_readb(base);
+ base++;
+ dest++;
+ }
+
+ sti_flush(dest_start, dest_len); /* XXX */
+}
+
+
+
+
+static char default_sti_path[21];
+
+static int __init
+sti_setup(char *str)
+{
+ if (str)
+ strncpy (default_sti_path, str, sizeof (default_sti_path));
+
+ return 0;
+}
+
+/* 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);
+
+
+
+static char __initdata *font_name[MAX_STI_ROMS] = { "VGA8x16", };
+static int __initdata font_index[MAX_STI_ROMS],
+ font_height[MAX_STI_ROMS],
+ font_width[MAX_STI_ROMS];
+
+static int __init sti_font_setup(char *str)
+{
+ char *x;
+ int i = 0;
+
+ /* we accept sti_font=VGA8x16, sti_font=10x20, sti_font=10*20
+ * or sti_font=7 style command lines. */
+
+ while (i<MAX_STI_ROMS && str && *str) {
+ if (*str>='0' && *str<='9') {
+ if ((x = strchr(str, 'x')) || (x = strchr(str, '*'))) {
+ font_height[i] = simple_strtoul(str, NULL, 0);
+ font_width[i] = simple_strtoul(x+1, NULL, 0);
+ } else {
+ font_index[i] = simple_strtoul(str, NULL, 0);
+ }
+ } else {
+ font_name[i] = str; /* fb font name */
+ }
+
+ if ((x = strchr(str, ',')))
+ *x++ = 0;
+ str = x;
+
+ i++;
+ }
+
+ return 0;
+}
+
+/* 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>
+ * 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);
+
+
+
+void __init
+sti_dump_globcfg(struct sti_glob_cfg *glob_cfg, unsigned int sti_mem_request)
+{
+ struct sti_glob_cfg_ext *cfg;
+
+ DPRINTK((KERN_INFO
+ "%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(glob_cfg->ext_ptr);
+ DPRINTK(( KERN_INFO
+ "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));
+}
+
+void __init
+sti_dump_outptr(struct sti_struct *sti)
+{
+ DPRINTK((KERN_INFO
+ "%d bits per pixel\n"
+ "%d used bits\n"
+ "%d planes\n"
+ "attributes %08x\n",
+ sti->outptr.bits_per_pixel,
+ sti->outptr.bits_used,
+ sti->outptr.planes,
+ sti->outptr.attributes));
+}
+
+int __init
+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;
+ const int save_addr_size = 1024; /* XXX */
+ int i;
+
+ if (!sti->sti_mem_request)
+ sti->sti_mem_request = 256; /* STI default */
+
+ glob_cfg = kmalloc(sizeof(*sti->glob_cfg), GFP_KERNEL);
+ glob_cfg_ext = kmalloc(sizeof(*glob_cfg_ext), GFP_KERNEL);
+ save_addr = kmalloc(save_addr_size, GFP_KERNEL);
+ sti_mem_addr = kmalloc(sti->sti_mem_request, GFP_KERNEL);
+
+ if (!(glob_cfg && glob_cfg_ext && save_addr && sti_mem_addr))
+ return -ENOMEM;
+
+ memset(glob_cfg, 0, sizeof(*glob_cfg));
+ memset(glob_cfg_ext, 0, sizeof(*glob_cfg_ext));
+ memset(save_addr, 0, save_addr_size);
+ memset(sti_mem_addr, 0, sti->sti_mem_request);
+
+ 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)) {
+ printk (KERN_WARNING
+ "STI pci region maping 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);
+
+ /* remap virtually */
+ /* FIXME: add BTLB support if btlb==1 */
+ len = sti->regions[i].region_desc.length * 4096;
+
+ if (len)
+ glob_cfg->region_ptrs[i] = (unsigned long) (
+ sti->regions[i].region_desc.cache ?
+ ioremap(sti->regions_phys[i], len) :
+ ioremap_nocache(sti->regions_phys[i], len) );
+
+ DPRINTK(("region #%d: phys %08lx, virt %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)
+ printk(KERN_WARNING "%s: *future ptr (0x%8x) not yet supported !\n",
+ __FILE__, sti->regions[i].region);
+
+ glob_cfg_ext->sti_mem_addr = STI_PTR(sti_mem_addr);
+
+ sti->glob_cfg = glob_cfg;
+
+ return 0;
+}
+
+struct sti_cooked_font * __init
+sti_select_fbfont( struct sti_cooked_rom *cooked_rom, char *fbfont_name )
+{
+ struct fbcon_font_desc *fbfont;
+ unsigned int size, bpc;
+ void *dest;
+ struct sti_rom_font *nf;
+ struct sti_cooked_font *cooked_font;
+
+ if (!fbfont_name || !strlen(fbfont_name))
+ return NULL;
+ fbfont = fbcon_find_font(fbfont_name);
+ if (!fbfont)
+ fbfont = fbcon_get_default_font(1024,768);
+ if (!fbfont)
+ return NULL;
+
+ DPRINTK((KERN_DEBUG "selected %dx%d fb-font %s\n",
+ fbfont->width, fbfont->height, fbfont->name));
+
+ bpc = ((fbfont->width+7)/8) * fbfont->height;
+ size = bpc * 256;
+ size += sizeof(struct sti_rom_font);
+
+ nf = kmalloc(size, GFP_KERNEL);
+ if (!nf)
+ return NULL;
+ memset(nf, 0, size);
+
+ nf->first_char = 0;
+ nf->last_char = 255;
+ 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*256);
+
+ cooked_font = kmalloc(sizeof(*cooked_font), GFP_KERNEL);
+ if (!cooked_font) {
+ kfree(nf);
+ return NULL;
+ }
+
+ cooked_font->raw = nf;
+ cooked_font->next_font = NULL;
+
+ cooked_rom->font_start = cooked_font;
+
+ return cooked_font;
+}
+
+struct sti_cooked_font * __init
+sti_select_font(struct sti_cooked_rom *rom,
+ int (*search_font_fnc) (struct sti_cooked_rom *,int,int) )
+{
+ struct sti_cooked_font *font;
+ int i;
+ int index = num_sti_roms;
+
+ /* check for framebuffer-font first */
+ if ((font = sti_select_fbfont(rom, font_name[index])))
+ return font;
+
+ if (font_width[index] && font_height[index])
+ font_index[index] = search_font_fnc(rom,
+ font_height[index], font_width[index]);
+
+ for (font = rom->font_start, i = font_index[index];
+ font && (i > 0);
+ font = font->next_font, i--);
+
+ if (font)
+ return font;
+ else
+ return rom->font_start;
+}
+
+
+static void __init
+sti_dump_rom(struct sti_rom *rom)
+{
+ printk(KERN_INFO "STI 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);
+ DPRINTK((" supports %d monitors\n", rom->num_mons));
+ DPRINTK((" font start %08x\n", rom->font_start));
+ DPRINTK((" region list %08x\n", rom->region_list));
+ DPRINTK((" init_graph %08x\n", rom->init_graph));
+ DPRINTK((" bus support %02x\n", rom->bus_support));
+ DPRINTK((" ext bus support %02x\n", rom->ext_bus_support));
+ DPRINTK((" alternate code type %d\n", rom->alt_code_type));
+}
+
+
+static int __init
+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 = kmalloc(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 = kmalloc(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;
+}
+
+
+static int __init
+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;
+}
+
+#define BMODE_RELOCATE(offset) offset = (offset) / 4;
+#define BMODE_LAST_ADDR_OFFS 0x50
+
+static void * __init
+sti_bmode_font_raw(struct sti_cooked_font *f)
+{
+ unsigned char *n, *p, *q;
+ int size = f->raw->bytes_per_char*256+sizeof(struct sti_rom_font);
+
+ n = kmalloc (4*size, GFP_KERNEL);
+ if (!n)
+ return NULL;
+ memset (n, 0, 4*size);
+ p = n + 3;
+ q = (unsigned char *)f->raw;
+ while (size--) {
+ *p = *q++;
+ p+=4;
+ }
+ return n + 3;
+}
+
+static void __init
+sti_bmode_rom_copy(unsigned long base, unsigned long count, void *dest)
+{
+ unsigned long dest_len = count;
+ unsigned long dest_start = (unsigned long) dest;
+
+ while (count) {
+ count--;
+ *(u8 *)dest = __raw_readl(base);
+ base += 4;
+ dest++;
+ }
+ sti_flush(dest_start, dest_len); /* XXX */
+}
+
+struct sti_rom * __init
+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, GFP_KERNEL);
+ 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;
+}
+
+struct sti_rom * __init
+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 = __raw_readl(address + offsetof(struct sti_rom,last_addr));
+
+ raw = kmalloc(size, GFP_KERNEL);
+ if(raw)
+ sti_rom_copy(address, size, raw);
+
+ return raw;
+}
+
+int __init
+sti_read_rom(int wordmode, struct sti_struct *sti, unsigned long address)
+{
+ struct sti_cooked_rom *cooked;
+ struct sti_rom *raw = NULL;
+
+ 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)) {
+ printk(KERN_ERR "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);
+
+ 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->font = sti_select_font(sti->rom, sti_search_font);
+ sti->font_width = sti->font->raw->width;
+ sti->font_height = sti->font->raw->height;
+ if (!wordmode)
+ sti->font->raw = sti_bmode_font_raw(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];
+
+ sti_dump_rom(raw);
+
+ return 1;
+
+out_err:
+ if(raw)
+ kfree(raw);
+ if(cooked)
+ kfree(cooked);
+
+ return 0;
+}
+
+static struct sti_struct * __init
+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) {
+ printk(KERN_WARNING "maximum number of STI ROMS reached !\n");
+ return NULL;
+ }
+
+ sti = kmalloc(sizeof(*sti), GFP_KERNEL);
+ if (!sti) {
+ printk(KERN_ERR "Not enough memory !\n");
+ return NULL;
+ }
+
+ memset(sti, 0, sizeof(*sti));
+ sti->lock = SPIN_LOCK_UNLOCKED;
+
+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 = __raw_readl(address);
+
+ /* check for a PCI ROM structure */
+ if ((le32_to_cpu(sig)==0xaa55)) {
+ unsigned int i, rm_offset;
+ u32 *rm;
+ i = __raw_readl(address+0x04);
+ if (i != 1) {
+ /* The ROM could have multiple architecture
+ * dependent images (e.g. i386, parisc,...) */
+ printk(KERN_WARNING
+ "PCI ROM is not a STI ROM type image (0x%8x)\n", i);
+ goto out_err;
+ }
+
+ sti->pd = pd;
+
+ i = __raw_readl(address+0x0c);
+ DPRINTK(("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++ = __raw_readl(address+rm_offset+0x00);
+ *rm++ = __raw_readl(address+rm_offset+0x04);
+ *rm++ = __raw_readl(address+rm_offset+0x08);
+ *rm++ = __raw_readl(address+rm_offset+0x0c);
+ DPRINTK(("PCI region Mapper offset = %08x: ",
+ rm_offset));
+ for (i=0; i<16; i++)
+ DPRINTK(("%02x ", sti->rm_entry[i]));
+ DPRINTK(("\n"));
+ }
+
+ address += le32_to_cpu(__raw_readl(address+8));
+ DPRINTK(("sig %04x, PCI STI ROM at %08lx\n", sig, address));
+ goto test_rom;
+ }
+
+ ok = 0;
+
+ if ((sig & 0xff) == 0x01) {
+ printk(KERN_INFO "STI byte mode ROM at %08lx, hpa at %08lx\n",
+ address, hpa);
+ ok = sti_read_rom(0, sti, address);
+ }
+
+ if ((sig & 0xffff) == 0x0303) {
+ printk(KERN_INFO "STI 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);
+ DPRINTK((KERN_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);
+
+ printk(KERN_INFO "STI device: %s\n", sti->outptr.dev_name );
+
+ sti_roms[num_sti_roms] = sti;
+ num_sti_roms++;
+
+ return sti;
+
+out_err:
+ kfree(sti);
+ return NULL;
+}
+
+static void __init sticore_check_for_default_sti (struct sti_struct *sti, char *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)
+{
+ unsigned long rom = 0;
+ char pa_path[21];
+ struct sti_struct *sti = NULL;
+
+ if(dev->num_addrs) {
+ rom = dev->addr[0];
+ }
+ if (!rom) {
+ rom = dev->hpa;
+ DPRINTK((KERN_DEBUG "Trying STI ROM at %08lx, hpa at %08lx\n", rom, dev->hpa));
+ sti = sti_try_rom_generic(rom, dev->hpa, NULL);
+ rom = PAGE0->proc_sti;
+ }
+ if (!sti) {
+ DPRINTK((KERN_DEBUG "Trying STI ROM at %08lx, hpa at %08lx\n", rom, dev->hpa));
+ sti = sti_try_rom_generic(rom, dev->hpa, NULL);
+ }
+ if (!sti)
+ return 1;
+
+ print_pa_hwpath(dev, pa_path);
+ sticore_check_for_default_sti (sti, pa_path);
+ return 0;
+}
+
+
+static int __devinit 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;
+ struct sti_struct *sti;
+
+ pci_enable_device(pd);
+
+ 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);
+ DPRINTK((KERN_DEBUG "STI PCI ROM enabled at 0x%08lx\n", rom_base));
+ }
+
+ printk(KERN_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);
+
+ DPRINTK((KERN_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) {
+ char pa_path[30];
+ print_pci_hwpath(pd, pa_path);
+ sticore_check_for_default_sti(sti, pa_path);
+ }
+
+ if (!sti) {
+ printk(KERN_WARNING "Unable to handle STI device '%s'\n",
+ pd->name);
+ return -ENODEV;
+ }
+#endif /* CONFIG_PCI */
+
+ return 0;
+}
+
+
+static void __devexit sticore_pci_remove(struct pci_dev *pd)
+{
+ BUG();
+}
+
+
+#define PCI_DEVICE_ID_VISUALIZE_EG 0x1005
+#define PCI_DEVICE_ID_VISUALIZE_FX 0x1008
+#define PCI_DEVICE_ID_VISUALIZE_FX_NEW 0x108b
+
+static struct pci_device_id sti_pci_tbl[] __devinitdata = {
+ { PCI_VENDOR_ID_HP, PCI_DEVICE_ID_VISUALIZE_EG, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
+ { PCI_VENDOR_ID_HP, PCI_DEVICE_ID_VISUALIZE_FX, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
+ { PCI_VENDOR_ID_HP, PCI_DEVICE_ID_VISUALIZE_FX_NEW, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
+ { 0, } /* terminate list */
+};
+MODULE_DEVICE_TABLE(pci, sti_pci_tbl);
+
+static struct pci_driver pci_sti_driver = {
+ name: "sti (pci)",
+ id_table: sti_pci_tbl,
+ probe: sticore_pci_init,
+ remove: 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, }
+};
+
+struct parisc_driver pa_sti_driver = {
+ name: "sti (native)",
+ id_table: sti_pa_tbl,
+ probe: sticore_pa_init,
+};
+
+struct sti_struct * __init sti_init_roms(void)
+{
+ static int initialized;
+
+ if (initialized)
+ goto out;
+
+ printk(KERN_INFO "STI GSC/PCI graphics driver version %s\n",
+ STI_DRIVERVERSION);
+
+ /* Register drivers for native & PCI cards */
+ register_parisc_driver(&pa_sti_driver);
+ pci_module_init (&pci_sti_driver);
+
+ /* if we didn't find the given default sti, take the first one */
+ if (!default_sti)
+ default_sti = sti_roms[0];
+
+out:
+ /* return default STI if available */
+ if (num_sti_roms && default_sti && default_sti->init_graph) {
+ initialized = 1;
+ return default_sti;
+ }
+ return NULL;
+}
+
+/*
+ * index = 0 gives default sti
+ * index > 0 gives other stis in detection order
+ */
+struct sti_struct * __init sti_get_rom(int index)
+{
+ int i;
+
+ if (index == 0)
+ return default_sti;
+
+ i = -1;
+ while (index > 0) {
+ i++;
+ if (i > num_sti_roms)
+ return NULL;
+ if (sti_roms[i] == default_sti)
+ continue;
+ index--;
+ }
+ return sti_roms[i];
+}
FUNET's LINUX-ADM group, linux-adm@nic.funet.fi
TCL-scripts by Sam Shen (who was at: slshen@lbl.gov)