diff options
Diffstat (limited to 'drivers/video/sticore.c')
| -rw-r--r-- | drivers/video/sticore.c | 1153 |
1 files changed, 1153 insertions, 0 deletions
diff --git a/drivers/video/sticore.c b/drivers/video/sticore.c new file mode 100644 index 000000000000..7eb925f2ba9c --- /dev/null +++ b/drivers/video/sticore.c @@ -0,0 +1,1153 @@ +// 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 <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; +} + +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"); + |