igafb.c
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上传日期:2013-04-10
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文件大小:22k
- /*
- * linux/drivers/video/igafb.c -- Frame buffer device for IGA 1682
- *
- * Copyright (C) 1998 Vladimir Roganov and Gleb Raiko
- *
- * This driver is partly based on the Frame buffer device for ATI Mach64
- * and partially on VESA-related code.
- *
- * Copyright (C) 1997-1998 Geert Uytterhoeven
- * Copyright (C) 1998 Bernd Harries
- * Copyright (C) 1998 Eddie C. Dost (ecd@skynet.be)
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file COPYING in the main directory of this archive for
- * more details.
- */
- /******************************************************************************
- TODO:
- Despite of IGA Card has advanced graphic acceleration,
- initial version is almost dummy and does not support it.
- Support for video modes and acceleration must be added
- together with accelerated X-Windows driver implementation.
- Most important thing at this moment is that we have working
- JavaEngine1 console & X with new console interface.
- ******************************************************************************/
- #include <linux/module.h>
- #include <linux/kernel.h>
- #include <linux/errno.h>
- #include <linux/string.h>
- #include <linux/mm.h>
- #include <linux/tty.h>
- #include <linux/slab.h>
- #include <linux/vmalloc.h>
- #include <linux/delay.h>
- #include <linux/interrupt.h>
- #include <linux/fb.h>
- #include <linux/selection.h>
- #include <linux/console.h>
- #include <linux/init.h>
- #include <linux/pci.h>
- #include <linux/nvram.h>
- #include <linux/kd.h>
- #include <linux/vt_kern.h>
- #include <asm/io.h>
- #ifdef __sparc__
- #include <asm/pbm.h>
- #include <asm/pcic.h>
- #endif
- #include <video/fbcon.h>
- #include <video/fbcon-cfb8.h>
- #include <video/fbcon-cfb16.h>
- #include <video/fbcon-cfb24.h>
- #include <video/fbcon-cfb32.h>
- #include "iga.h"
- static char igafb_name[16] = "IGA 1682";
- static char fontname[40] __initdata = { 0 };
- struct pci_mmap_map {
- unsigned long voff;
- unsigned long poff;
- unsigned long size;
- unsigned long prot_flag;
- unsigned long prot_mask;
- };
- struct fb_info_iga {
- struct fb_info fb_info;
- unsigned long frame_buffer_phys;
- char *frame_buffer;
- unsigned long io_base_phys;
- unsigned long io_base;
- u32 total_vram;
- struct pci_mmap_map *mmap_map;
- struct { u_short blue, green, red, pad; } palette[256];
- int video_cmap_len;
- int currcon;
- struct display disp;
- struct display_switch dispsw;
- union {
- #ifdef FBCON_HAS_CFB16
- u16 cfb16[16];
- #endif
- #ifdef FBCON_HAS_CFB24
- u32 cfb24[16];
- #endif
- #ifdef FBCON_HAS_CFB32
- u32 cfb32[16];
- #endif
- } fbcon_cmap;
- #ifdef __sparc__
- u8 open;
- u8 mmaped;
- int vtconsole;
- int consolecnt;
- #endif
- };
- struct fb_var_screeninfo default_var = {
- /* 640x480, 60 Hz, Non-Interlaced (25.175 MHz dotclock) */
- 640, 480, 640, 480, 0, 0, 8, 0,
- {0, 8, 0}, {0, 8, 0}, {0, 8, 0}, {0, 0, 0},
- 0, 0, -1, -1, 0, 39722, 48, 16, 33, 10, 96, 2,
- 0, FB_VMODE_NONINTERLACED
- };
- #ifdef __sparc__
- struct fb_var_screeninfo default_var_1024x768 __initdata = {
- /* 1024x768, 75 Hz, Non-Interlaced (78.75 MHz dotclock) */
- 1024, 768, 1024, 768, 0, 0, 8, 0,
- {0, 8, 0}, {0, 8, 0}, {0, 8, 0}, {0, 0, 0},
- 0, 0, -1, -1, 0, 12699, 176, 16, 28, 1, 96, 3,
- FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
- };
- struct fb_var_screeninfo default_var_1152x900 __initdata = {
- /* 1152x900, 76 Hz, Non-Interlaced (110.0 MHz dotclock) */
- 1152, 900, 1152, 900, 0, 0, 8, 0,
- {0, 8, 0}, {0, 8, 0}, {0, 8, 0}, {0, 0, 0},
- 0, 0, -1, -1, 0, 9091, 234, 24, 34, 3, 100, 3,
- FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
- };
- struct fb_var_screeninfo default_var_1280x1024 __initdata = {
- /* 1280x1024, 75 Hz, Non-Interlaced (135.00 MHz dotclock) */
- 1280, 1024, 1280, 1024, 0, 0, 8, 0,
- {0, 8, 0}, {0, 8, 0}, {0, 8, 0}, {0, 0, 0},
- 0, 0, -1, -1, 0, 7408, 248, 16, 38, 1, 144, 3,
- FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
- };
- /*
- * Memory-mapped I/O functions for Sparc PCI
- *
- * On sparc we happen to access I/O with memory mapped functions too.
- */
- #define pci_inb(info, reg) readb(info->io_base+(reg))
- #define pci_outb(info, val, reg) writeb(val, info->io_base+(reg))
- static inline unsigned int iga_inb(struct fb_info_iga *info,
- unsigned int reg, unsigned int idx )
- {
- pci_outb(info, idx, reg);
- return pci_inb(info, reg + 1);
- }
- static inline void iga_outb(struct fb_info_iga *info, unsigned char val,
- unsigned int reg, unsigned int idx )
- {
- pci_outb(info, idx, reg);
- pci_outb(info, val, reg+1);
- }
- #endif /* __sparc__ */
- /*
- * Very important functionality for the JavaEngine1 computer:
- * make screen border black (usign special IGA registers)
- */
- static void iga_blank_border(struct fb_info_iga *info)
- {
- int i;
- #if 0
- /*
- * PROM does this for us, so keep this code as a reminder
- * about required read from 0x3DA and writing of 0x20 in the end.
- */
- (void) pci_inb(info, 0x3DA); /* required for every access */
- pci_outb(info, IGA_IDX_VGA_OVERSCAN, IGA_ATTR_CTL);
- (void) pci_inb(info, IGA_ATTR_CTL+1);
- pci_outb(info, 0x38, IGA_ATTR_CTL);
- pci_outb(info, 0x20, IGA_ATTR_CTL); /* re-enable visual */
- #endif
- /*
- * This does not work as it was designed because the overscan
- * color is looked up in the palette. Therefore, under X11
- * overscan changes color.
- */
- for (i=0; i < 3; i++)
- iga_outb(info, 0, IGA_EXT_CNTRL, IGA_IDX_OVERSCAN_COLOR + i);
- }
- /*
- * Frame buffer device API
- */
- static int igafb_update_var(int con, struct fb_info *info)
- {
- return 0;
- }
- static int igafb_get_fix(struct fb_fix_screeninfo *fix, int con,
- struct fb_info *info)
- {
- struct fb_info_iga *fb = (struct fb_info_iga*)info;
- memset(fix, 0, sizeof(struct fb_fix_screeninfo));
- strcpy(fix->id, igafb_name);
- fix->smem_start = (unsigned long) fb->frame_buffer;
- fix->smem_len = fb->total_vram;
- fix->xpanstep = 0;
- fix->ypanstep = 0;
- fix->ywrapstep = 0;
- fix->type = FB_TYPE_PACKED_PIXELS;
- fix->type_aux = 0;
- fix->line_length = default_var.xres * (default_var.bits_per_pixel/8);
- fix->visual = default_var.bits_per_pixel <= 8 ? FB_VISUAL_PSEUDOCOLOR
- : FB_VISUAL_DIRECTCOLOR;
- return 0;
- }
- static int igafb_get_var(struct fb_var_screeninfo *var, int con,
- struct fb_info *info)
- {
- if(con == -1)
- memcpy(var, &default_var, sizeof(struct fb_var_screeninfo));
- else
- *var = fb_display[con].var;
- return 0;
- }
- static int igafb_set_var(struct fb_var_screeninfo *var, int con,
- struct fb_info *info)
- {
- memcpy(var, &default_var, sizeof(struct fb_var_screeninfo));
- return 0;
- }
- #ifdef __sparc__
- static int igafb_mmap(struct fb_info *info, struct file *file,
- struct vm_area_struct *vma)
- {
- struct fb_info_iga *fb = (struct fb_info_iga *)info;
- unsigned int size, page, map_size = 0;
- unsigned long map_offset = 0;
- int i;
- if (!fb->mmap_map)
- return -ENXIO;
- size = vma->vm_end - vma->vm_start;
- /* To stop the swapper from even considering these pages. */
- vma->vm_flags |= (VM_SHM | VM_LOCKED);
- /* Each page, see which map applies */
- for (page = 0; page < size; ) {
- map_size = 0;
- for (i = 0; fb->mmap_map[i].size; i++) {
- unsigned long start = fb->mmap_map[i].voff;
- unsigned long end = start + fb->mmap_map[i].size;
- unsigned long offset = (vma->vm_pgoff << PAGE_SHIFT) + page;
- if (start > offset)
- continue;
- if (offset >= end)
- continue;
- map_size = fb->mmap_map[i].size - (offset - start);
- map_offset = fb->mmap_map[i].poff + (offset - start);
- break;
- }
- if (!map_size) {
- page += PAGE_SIZE;
- continue;
- }
- if (page + map_size > size)
- map_size = size - page;
- pgprot_val(vma->vm_page_prot) &= ~(fb->mmap_map[i].prot_mask);
- pgprot_val(vma->vm_page_prot) |= fb->mmap_map[i].prot_flag;
- if (remap_page_range(vma->vm_start + page, map_offset,
- map_size, vma->vm_page_prot))
- return -EAGAIN;
- page += map_size;
- }
- if (!map_size)
- return -EINVAL;
- if (!fb->mmaped) {
- int lastconsole = 0;
- if (info->display_fg)
- lastconsole = info->display_fg->vc_num;
- fb->mmaped = 1;
- if (fb->consolecnt && fb_display[lastconsole].fb_info ==info) {
- fb->vtconsole = lastconsole;
- vt_cons[lastconsole]->vc_mode = KD_GRAPHICS;
- }
- }
- return 0;
- }
- #endif /* __sparc__ */
- static int iga_getcolreg(unsigned regno, unsigned *red, unsigned *green,
- unsigned *blue, unsigned *transp,
- struct fb_info *fb_info)
- {
- /*
- * Read a single color register and split it into colors/transparent.
- * Return != 0 for invalid regno.
- */
- struct fb_info_iga *info = (struct fb_info_iga*) fb_info;
- if (regno >= info->video_cmap_len)
- return 1;
- *red = info->palette[regno].red;
- *green = info->palette[regno].green;
- *blue = info->palette[regno].blue;
- *transp = 0;
- return 0;
- }
- static int iga_setcolreg(unsigned regno, unsigned red, unsigned green,
- unsigned blue, unsigned transp,
- struct fb_info *fb_info)
- {
- /*
- * Set a single color register. The values supplied are
- * already rounded down to the hardware's capabilities
- * (according to the entries in the `var' structure). Return
- * != 0 for invalid regno.
- */
-
- struct fb_info_iga *info = (struct fb_info_iga*) fb_info;
- if (regno >= info->video_cmap_len)
- return 1;
- info->palette[regno].red = red;
- info->palette[regno].green = green;
- info->palette[regno].blue = blue;
- pci_outb(info, regno, DAC_W_INDEX);
- pci_outb(info, red, DAC_DATA);
- pci_outb(info, green, DAC_DATA);
- pci_outb(info, blue, DAC_DATA);
- if (regno < 16) {
- switch (default_var.bits_per_pixel) {
- #ifdef FBCON_HAS_CFB16
- case 16:
- info->fbcon_cmap.cfb16[regno] =
- (regno << 10) | (regno << 5) | regno;
- break;
- #endif
- #ifdef FBCON_HAS_CFB24
- case 24:
- info->fbcon_cmap.cfb24[regno] =
- (regno << 16) | (regno << 8) | regno;
- break;
- #endif
- #ifdef FBCON_HAS_CFB32
- case 32:
- { int i;
- i = (regno << 8) | regno;
- info->fbcon_cmap.cfb32[regno] = (i << 16) | i;
- }
- break;
- #endif
- }
- }
- return 0;
- }
- static void do_install_cmap(int con, struct fb_info *fb_info)
- {
- struct fb_info_iga *info = (struct fb_info_iga*) fb_info;
- if (con != info->currcon)
- return;
- if (fb_display[con].cmap.len)
- fb_set_cmap(&fb_display[con].cmap, 1,
- iga_setcolreg, &info->fb_info);
- else
- fb_set_cmap(fb_default_cmap(info->video_cmap_len), 1,
- iga_setcolreg, &info->fb_info);
- }
- static int igafb_get_cmap(struct fb_cmap *cmap, int kspc, int con,
- struct fb_info *fb_info)
- {
- struct fb_info_iga *info = (struct fb_info_iga*) fb_info;
-
- if (con == info->currcon) /* current console? */
- return fb_get_cmap(cmap, kspc, iga_getcolreg, &info->fb_info);
- else if (fb_display[con].cmap.len) /* non default colormap? */
- fb_copy_cmap(&fb_display[con].cmap, cmap, kspc ? 0 : 2);
- else
- fb_copy_cmap(fb_default_cmap(info->video_cmap_len),
- cmap, kspc ? 0 : 2);
- return 0;
- }
- static int igafb_set_cmap(struct fb_cmap *cmap, int kspc, int con,
- struct fb_info *info)
- {
- int err;
- struct fb_info_iga *fb = (struct fb_info_iga*) info;
- if (!fb_display[con].cmap.len) { /* no colormap allocated? */
- err = fb_alloc_cmap(&fb_display[con].cmap,
- fb->video_cmap_len,0);
- if (err)
- return err;
- }
- if (con == fb->currcon) /* current console? */
- return fb_set_cmap(cmap, kspc, iga_setcolreg, info);
- else
- fb_copy_cmap(cmap, &fb_display[con].cmap, kspc ? 0 : 1);
- return 0;
- }
- /*
- * Framebuffer option structure
- */
- static struct fb_ops igafb_ops = {
- owner: THIS_MODULE,
- fb_get_fix: igafb_get_fix,
- fb_get_var: igafb_get_var,
- fb_set_var: igafb_set_var,
- fb_get_cmap: igafb_get_cmap,
- fb_set_cmap: igafb_set_cmap,
- #ifdef __sparc__
- fb_mmap: igafb_mmap,
- #endif
- };
- static void igafb_set_disp(int con, struct fb_info_iga *info)
- {
- struct fb_fix_screeninfo fix;
- struct display *display;
- struct display_switch *sw;
- if (con >= 0)
- display = &fb_display[con];
- else
- display = &info->disp; /* used during initialization */
- igafb_get_fix(&fix, con, &info->fb_info);
- memset(display, 0, sizeof(struct display));
- display->screen_base = info->frame_buffer;
- display->visual = fix.visual;
- display->type = fix.type;
- display->type_aux = fix.type_aux;
- display->ypanstep = fix.ypanstep;
- display->ywrapstep = fix.ywrapstep;
- display->line_length = fix.line_length;
- display->next_line = fix.line_length;
- display->can_soft_blank = 0;
- display->inverse = 0;
- igafb_get_var(&display->var, -1, &info->fb_info);
- switch (default_var.bits_per_pixel) {
- #ifdef FBCON_HAS_CFB8
- case 8:
- sw = &fbcon_cfb8;
- break;
- #endif
- #ifdef FBCON_HAS_CFB16
- case 15:
- case 16:
- sw = &fbcon_cfb16;
- display->dispsw_data = info->fbcon_cmap.cfb16;
- break;
- #endif
- #ifdef FBCON_HAS_CFB24
- case 24:
- sw = &fbcon_cfb24;
- display->dispsw_data = info->fbcon_cmap.cfb24;
- break;
- #endif
- #ifdef FBCON_HAS_CFB32
- case 32:
- sw = &fbcon_cfb32;
- display->dispsw_data = info->fbcon_cmap.cfb32;
- break;
- #endif
- default:
- printk(KERN_WARNING "igafb_set_disp: unknown resolution %dn",
- default_var.bits_per_pixel);
- return;
- }
- memcpy(&info->dispsw, sw, sizeof(*sw));
- display->dispsw = &info->dispsw;
- display->scrollmode = SCROLL_YREDRAW;
- info->dispsw.bmove = fbcon_redraw_bmove;
- }
- static int igafb_switch(int con, struct fb_info *fb_info)
- {
- struct fb_info_iga *info = (struct fb_info_iga*) fb_info;
- /* Do we have to save the colormap? */
- if (fb_display[info->currcon].cmap.len)
- fb_get_cmap(&fb_display[info->currcon].cmap, 1,
- iga_getcolreg, fb_info);
- info->currcon = con;
- /* Install new colormap */
- do_install_cmap(con, fb_info);
- igafb_update_var(con, fb_info);
- return 1;
- }
- /* 0 unblank, 1 blank, 2 no vsync, 3 no hsync, 4 off */
- static void igafb_blank(int blank, struct fb_info *info)
- {
- /* Not supported */
- }
- static int __init iga_init(struct fb_info_iga *info)
- {
- char vramsz = iga_inb(info, IGA_EXT_CNTRL, IGA_IDX_EXT_BUS_CNTL)
- & MEM_SIZE_ALIAS;
- switch (vramsz) {
- case MEM_SIZE_1M:
- info->total_vram = 0x100000;
- break;
- case MEM_SIZE_2M:
- info->total_vram = 0x200000;
- break;
- case MEM_SIZE_4M:
- case MEM_SIZE_RESERVED:
- info->total_vram = 0x400000;
- break;
- }
- if (default_var.bits_per_pixel > 8) {
- info->video_cmap_len = 16;
- } else {
- info->video_cmap_len = 256;
- }
- {
- int j, k;
- for (j = 0; j < 16; j++) {
- k = color_table[j];
- info->palette[j].red = default_red[k];
- info->palette[j].green = default_grn[k];
- info->palette[j].blue = default_blu[k];
- }
- }
- strcpy(info->fb_info.modename, igafb_name);
- info->fb_info.node = -1;
- info->fb_info.fbops = &igafb_ops;
- info->fb_info.disp = &info->disp;
- strcpy(info->fb_info.fontname, fontname);
- info->fb_info.changevar = NULL;
- info->fb_info.switch_con = &igafb_switch;
- info->fb_info.updatevar = &igafb_update_var;
- info->fb_info.blank = &igafb_blank;
- info->fb_info.flags=FBINFO_FLAG_DEFAULT;
- igafb_set_disp(-1, info);
- if (register_framebuffer(&info->fb_info) < 0)
- return 0;
- printk("fb%d: %s frame buffer device at 0x%08lx [%dMB VRAM]n",
- GET_FB_IDX(info->fb_info.node), igafb_name,
- info->frame_buffer_phys, info->total_vram >> 20);
- iga_blank_border(info);
- return 1;
- }
- int __init igafb_init(void)
- {
- struct pci_dev *pdev;
- struct fb_info_iga *info;
- unsigned long addr;
- extern int con_is_present(void);
- int iga2000 = 0;
- /* Do not attach when we have a serial console. */
- if (!con_is_present())
- return -ENXIO;
- pdev = pci_find_device(PCI_VENDOR_ID_INTERG,
- PCI_DEVICE_ID_INTERG_1682, 0);
- if (pdev == NULL) {
- /*
- * XXX We tried to use cyber2000fb.c for IGS 2000.
- * But it does not initialize the chip in JavaStation-E, alas.
- */
- pdev = pci_find_device(PCI_VENDOR_ID_INTERG, 0x2000, 0);
- if(pdev == NULL) {
- return -ENXIO;
- }
- iga2000 = 1;
- }
- info = kmalloc(sizeof(struct fb_info_iga), GFP_ATOMIC);
- if (!info) {
- printk("igafb_init: can't alloc fb_info_igan");
- return -ENOMEM;
- }
- memset(info, 0, sizeof(struct fb_info_iga));
- if ((addr = pdev->resource[0].start) == 0) {
- printk("igafb_init: no memory startn");
- kfree(info);
- return -ENXIO;
- }
- if ((info->frame_buffer = ioremap(addr, 1024*1024*2)) == 0) {
- printk("igafb_init: can't remap %lx[2M]n", addr);
- kfree(info);
- return -ENXIO;
- }
- info->frame_buffer_phys = addr & PCI_BASE_ADDRESS_MEM_MASK;
- #ifdef __sparc__
- /*
- * The following is sparc specific and this is why:
- *
- * IGS2000 has its I/O memory mapped and we want
- * to generate memory cycles on PCI, e.g. do ioremap(),
- * then readb/writeb() as in Documentation/IO-mapping.txt.
- *
- * IGS1682 is more traditional, it responds to PCI I/O
- * cycles, so we want to access it with inb()/outb().
- *
- * On sparc, PCIC converts CPU memory access within
- * phys window 0x3000xxxx into PCI I/O cycles. Therefore
- * we may use readb/writeb to access them with IGS1682.
- *
- * We do not take io_base_phys from resource[n].start
- * on IGS1682 because that chip is BROKEN. It does not
- * have a base register for I/O. We just "know" what its
- * I/O addresses are.
- */
- if (iga2000) {
- info->io_base_phys = info->frame_buffer_phys | 0x00800000;
- } else {
- info->io_base_phys = 0x30000000; /* XXX */
- }
- if ((info->io_base = (int) ioremap(info->io_base_phys, 0x1000)) == 0) {
- printk("igafb_init: can't remap %lx[4K]n", info->io_base_phys);
- iounmap((void *)info->frame_buffer);
- kfree(info);
- return -ENXIO;
- }
- /*
- * Figure mmap addresses from PCI config space.
- * We need two regions: for video memory and for I/O ports.
- * Later one can add region for video coprocessor registers.
- * However, mmap routine loops until size != 0, so we put
- * one additional region with size == 0.
- */
- info->mmap_map = kmalloc(4 * sizeof(*info->mmap_map), GFP_ATOMIC);
- if (!info->mmap_map) {
- printk("igafb_init: can't alloc mmap_mapn");
- iounmap((void *)info->io_base);
- iounmap(info->frame_buffer);
- kfree(info);
- return -ENOMEM;
- }
- memset(info->mmap_map, 0, 4 * sizeof(*info->mmap_map));
- /*
- * Set default vmode and cmode from PROM properties.
- */
- {
- struct pcidev_cookie *cookie = pdev->sysdata;
- int node = cookie->prom_node;
- int width = prom_getintdefault(node, "width", 1024);
- int height = prom_getintdefault(node, "height", 768);
- int depth = prom_getintdefault(node, "depth", 8);
- switch (width) {
- case 1024:
- if (height == 768)
- default_var = default_var_1024x768;
- break;
- case 1152:
- if (height == 900)
- default_var = default_var_1152x900;
- break;
- case 1280:
- if (height == 1024)
- default_var = default_var_1280x1024;
- break;
- default:
- break;
- }
- switch (depth) {
- case 8:
- default_var.bits_per_pixel = 8;
- break;
- case 16:
- default_var.bits_per_pixel = 16;
- break;
- case 24:
- default_var.bits_per_pixel = 24;
- break;
- case 32:
- default_var.bits_per_pixel = 32;
- break;
- default:
- break;
- }
- }
- #endif
- if (!iga_init(info)) {
- iounmap((void *)info->io_base);
- iounmap(info->frame_buffer);
- if (info->mmap_map)
- kfree(info->mmap_map);
- kfree(info);
- }
- #ifdef __sparc__
- /*
- * Add /dev/fb mmap values.
- */
-
- /* First region is for video memory */
- info->mmap_map[0].voff = 0x0;
- info->mmap_map[0].poff = info->frame_buffer_phys & PAGE_MASK;
- info->mmap_map[0].size = info->total_vram & PAGE_MASK;
- info->mmap_map[0].prot_mask = SRMMU_CACHE;
- info->mmap_map[0].prot_flag = SRMMU_WRITE;
- /* Second region is for I/O ports */
- info->mmap_map[1].voff = info->frame_buffer_phys & PAGE_MASK;
- info->mmap_map[1].poff = info->io_base_phys & PAGE_MASK;
- info->mmap_map[1].size = PAGE_SIZE * 2; /* X wants 2 pages */
- info->mmap_map[1].prot_mask = SRMMU_CACHE;
- info->mmap_map[1].prot_flag = SRMMU_WRITE;
- #endif /* __sparc__ */
- return 0;
- }
- int __init igafb_setup(char *options)
- {
- char *this_opt;
- if (!options || !*options)
- return 0;
- while ((this_opt = strsep(&options, ",")) != NULL) {
- if (!strncmp(this_opt, "font:", 5)) {
- char *p;
- int i;
- p = this_opt + 5;
- for (i = 0; i < sizeof(fontname) - 1; i++)
- if (!*p || *p == ' ' || *p == ',')
- break;
- memcpy(fontname, this_opt + 5, i);
- fontname[i] = 0;
- }
- }
- return 0;
- }
- MODULE_LICENSE("GPL");