diff options
Diffstat (limited to 'drivers/video/console/sticore.c')
| -rw-r--r-- | drivers/video/console/sticore.c | 1088 |
1 files changed, 1088 insertions, 0 deletions
diff --git a/drivers/video/console/sticore.c b/drivers/video/console/sticore.c new file mode 100644 index 0000000..d940f60 --- /dev/null +++ b/drivers/video/console/sticore.c @@ -0,0 +1,1088 @@ +/* + * 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) 2001-2003 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 ;) + * + */ + +#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 <linux/font.h> + +#include <asm/hardware.h> +#include <asm/parisc-device.h> +#include <asm/cacheflush.h> + +#include "../sticore.h" + +#define STI_DRIVERVERSION "Version 0.9a" + +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 = { + .text_planes = 3, /* # of text planes (max 3 for STI) */ + .ext_ptr = 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 = { + .font_start_addr= STI_PTR(sti->font->raw), + .index = c_index(sti, c), + .fg_color = c_fg(sti, c), + .bg_color = c_bg(sti, c), + .dest_x = x * sti->font_width, + .dest_y = y * sti->font_height, + }; + 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 = { + .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 = { 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 = { + .fg_color = c_fg(sti, c), + .bg_color = c_bg(sti, c), + .src_x = src_x * sti->font_width, + .src_y = src_y * sti->font_height, + .dest_x = src_x * sti->font_width, + .dest_y = src_y * sti->font_height, + .width = width * sti->font_width, + .height = height* sti->font_height, + }; + 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 = { + .src_x = src_x * sti->font_width, + .src_y = src_y * sti->font_height, + .dest_x = dst_x * sti->font_width, + .dest_y = dst_y * sti->font_height, + .width = width * sti->font_width, + .height = height* sti->font_height, + }; + 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); +} + + +/* FIXME: Do we have another solution for this ? */ +static void sti_flush(unsigned long from, unsigned long len) +{ + flush_data_cache(); + flush_kernel_dcache_range(from, len); + flush_icache_range(from, from+len); +} + +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 = gsc_readl(base); + base += 4; + dest += 4; + } + while (count) { + count--; + *(u8 *)dest = gsc_readb(base); + base++; + dest++; + } + + sti_flush(dest_start, dest_len); +} + + + + +static char default_sti_path[21]; + +#ifndef MODULE +static int __init sti_setup(char *str) +{ + if (str) + strlcpy (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); +#endif + + + +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]; +#ifndef MODULE +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); +#endif + + + +static 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)); +} + +static 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)); +} + +static 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)) { + kfree(glob_cfg); + kfree(glob_cfg_ext); + kfree(save_addr); + kfree(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; + +/* XXX: Enabling IOREMAP debugging causes a crash, so we must be passing + * a virtual address to something expecting a physical address that doesn't + * go through a readX macro */ +#if 0 + 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) ); +#else + if (len) + glob_cfg->region_ptrs[i] = sti->regions_phys[i]; +#endif + + 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; +} + +#ifdef CONFIG_FB +struct sti_cooked_font * __init +sti_select_fbfont( struct sti_cooked_rom *cooked_rom, char *fbfont_name ) +{ + struct 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 = find_font(fbfont_name); + if (!fbfont) + fbfont = 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; +} +#else +struct sti_cooked_font * __init +sti_select_fbfont(struct sti_cooked_rom *cooked_rom, char *fbfont_name) +{ + return NULL; +} +#endif + +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 " 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 = gsc_readl(base); + base += 4; + dest++; + } + sti_flush(dest_start, dest_len); +} + +static 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 = gsc_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: + kfree(raw); + 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)); + 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,...) */ + printk(KERN_WARNING + "PCI ROM is not a STI ROM type image (0x%8x)\n", i); + goto out_err; + } + + sti->pd = pd; + + i = gsc_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++ = 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); + 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(gsc_readl(address+8)); + DPRINTK(("sig %04x, PCI STI ROM at %08lx\n", sig, address)); + goto test_rom; + } + + ok = 0; + + if ((sig & 0xff) == 0x01) { + DPRINTK((" byte mode ROM at %08lx, hpa at %08lx\n", + address, hpa)); + ok = sti_read_rom(0, sti, address); + } + + if ((sig & 0xffff) == 0x0303) { + DPRINTK((" 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 " graphics card name: %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", + pci_name(pd)); + return -ENODEV; + } +#endif /* CONFIG_PCI */ + + return 0; +} + + +static void __devexit 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 = 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, } +}; + +static struct parisc_driver pa_sti_driver = { + .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; + +static void __init sti_init_roms(void) +{ + if (sticore_initialized) + return; + + sticore_initialized = 1; + + printk(KERN_INFO "STI GSC/PCI core graphics driver " + STI_DRIVERVERSION "\n"); + + /* Register drivers for native & PCI cards */ + register_parisc_driver(&pa_sti_driver); + 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); + +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"); + |
