sticore.c
上传用户:jlfgdled
上传日期:2013-04-10
资源大小:33168k
文件大小:25k
- /*
- * 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 planesn"
- "%4d x %4d screen resolutionn"
- "%4d x %4d offscreenn"
- "%4d x %4d layoutn"
- "regions at %08x %08x %08x %08xn"
- "regions at %08x %08x %08x %08xn"
- "reent_lvl %dn"
- "save_addr %08xn",
- 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 %dn"
- "in friendly mode: %dn"
- "power consumption %d wattsn"
- "freq ref %dn"
- "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 pixeln"
- "%d used bitsn"
- "%d planesn"
- "attributes %08xn",
- 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 mappedn",
- 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=%dn",
- 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 %sn",
- 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.%02xn",
- rom->graphics_id[0],
- rom->graphics_id[1],
- rom->revno[0] >> 4,
- rom->revno[0] & 0x0f);
- DPRINTK((" supports %d monitorsn", rom->num_mons));
- DPRINTK((" font start %08xn", rom->font_start));
- DPRINTK((" region list %08xn", rom->region_list));
- DPRINTK((" init_graph %08xn", rom->init_graph));
- DPRINTK((" bus support %02xn", rom->bus_support));
- DPRINTK((" ext bus support %02xn", rom->ext_bus_support));
- DPRINTK((" alternate code type %dn", 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 %08lxn", 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 kBn",
- 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 %08lxn", sig, address));
- goto test_rom;
- }
-
- ok = 0;
-
- if ((sig & 0xff) == 0x01) {
- printk(KERN_INFO "STI byte mode ROM at %08lx, hpa at %08lxn",
- address, hpa);
- ok = sti_read_rom(0, sti, address);
- }
- if ((sig & 0xffff) == 0x0303) {
- printk(KERN_INFO "STI word mode ROM at %08lx, hpa at %08lxn",
- 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 disabledn"));
- }
- 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: %sn", 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 %08lxn", 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 %08lxn", 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%08lxn", 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 %08lxn",
- 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 %sn",
- 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];
- }