/* * linux/drivers/video/offb.c -- Open Firmware based frame buffer device * * Copyright (C) 1997 Geert Uytterhoeven * * This driver is partly based on the PowerMac console driver: * * Copyright (C) 1996 Paul Mackerras * * 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. */ #include <linux/config.h>#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/init.h>#include <linux/ioport.h>#include <linux/pci.h>#include <asm/io.h>#include <asm/prom.h> #ifdef CONFIG_PPC64#include <asm/pci-bridge.h>#endif #ifdef CONFIG_PPC32#include <asm/bootx.h>#endif #include "macmodes.h" /* Supported palette hacks */enum { cmap_unknown, cmap_m64, /* ATI Mach64 */ cmap_r128, /* ATI Rage128 */ cmap_M3A, /* ATI Rage Mobility M3 Head A */ cmap_M3B, /* ATI Rage Mobility M3 Head B */ cmap_radeon, /* ATI Radeon */ cmap_gxt2000, /* IBM GXT2000 */}; struct offb_par { volatile void __iomem *cmap_adr; volatile void __iomem *cmap_data; int cmap_type; int blanked;}; struct offb_par default_par; /* * Interface used by the world */ int offb_init(void); static int offb_setcolreg(u_int regno, u_int red, u_int green, u_int blue, u_int transp, struct fb_info *info);static int offb_blank(int blank, struct fb_info *info); #ifdef CONFIG_PPC32extern boot_infos_t *boot_infos;#endif static void offb_init_nodriver(struct device_node *);static void offb_init_fb(const char *name, const char *full_name, int width, int height, int depth, int pitch, unsigned long address, struct device_node *dp); static struct fb_ops offb_ops = { .owner = THIS_MODULE, .fb_setcolreg = offb_setcolreg, .fb_blank = offb_blank, .fb_fillrect = cfb_fillrect, .fb_copyarea = cfb_copyarea, .fb_imageblit = cfb_imageblit,}; /* * 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. */ static int offb_setcolreg(u_int regno, u_int red, u_int green, u_int blue, u_int transp, struct fb_info *info){ struct offb_par *par = (struct offb_par *) info->par; if (!par->cmap_adr || regno > 255) return 1; red >>= 8; green >>= 8; blue >>= 8; switch (par->cmap_type) { case cmap_m64: writeb(regno, par->cmap_adr); writeb(red, par->cmap_data); writeb(green, par->cmap_data); writeb(blue, par->cmap_data); break; case cmap_M3A: /* Clear PALETTE_ACCESS_CNTL in DAC_CNTL */ out_le32(par->cmap_adr + 0x58, in_le32(par->cmap_adr + 0x58) & ~0x20); case cmap_r128: /* Set palette index & data */ out_8(par->cmap_adr + 0xb0, regno); out_le32(par->cmap_adr + 0xb4, (red << 16 | green << 8 | blue)); break; case cmap_M3B: /* Set PALETTE_ACCESS_CNTL in DAC_CNTL */ out_le32(par->cmap_adr + 0x58, in_le32(par->cmap_adr + 0x58) | 0x20); /* Set palette index & data */ out_8(par->cmap_adr + 0xb0, regno); out_le32(par->cmap_adr + 0xb4, (red << 16 | green << 8 | blue)); break; case cmap_radeon: /* Set palette index & data (could be smarter) */ out_8(par->cmap_adr + 0xb0, regno); out_le32(par->cmap_adr + 0xb4, (red << 16 | green << 8 | blue)); break; case cmap_gxt2000: out_le32((unsigned __iomem *) par->cmap_adr + regno, (red << 16 | green << 8 | blue)); break; } if (regno < 16) switch (info->var.bits_per_pixel) { case 16: ((u16 *) (info->pseudo_palette))[regno] = (regno << 10) | (regno << 5) | regno; break; case 32: { int i = (regno << 8) | regno; ((u32 *) (info->pseudo_palette))[regno] = (i << 16) | i; break; } } return 0;} /* * Blank the display. */ static int offb_blank(int blank, struct fb_info *info){ struct offb_par *par = (struct offb_par *) info->par; int i, j; if (!par->cmap_adr) return 0; if (!par->blanked) if (!blank) return 0; par->blanked = blank; if (blank) for (i = 0; i < 256; i++) { switch (par->cmap_type) { case cmap_m64: writeb(i, par->cmap_adr); for (j = 0; j < 3; j++) writeb(0, par->cmap_data); break; case cmap_M3A: /* Clear PALETTE_ACCESS_CNTL in DAC_CNTL */ out_le32(par->cmap_adr + 0x58, in_le32(par->cmap_adr + 0x58) & ~0x20); case cmap_r128: /* Set palette index & data */ out_8(par->cmap_adr + 0xb0, i); out_le32(par->cmap_adr + 0xb4, 0); break; case cmap_M3B: /* Set PALETTE_ACCESS_CNTL in DAC_CNTL */ out_le32(par->cmap_adr + 0x58, in_le32(par->cmap_adr + 0x58) | 0x20); /* Set palette index & data */ out_8(par->cmap_adr + 0xb0, i); out_le32(par->cmap_adr + 0xb4, 0); break; case cmap_radeon: out_8(par->cmap_adr + 0xb0, i); out_le32(par->cmap_adr + 0xb4, 0); break; case cmap_gxt2000: out_le32((unsigned __iomem *) par->cmap_adr + i, 0); break; } } else fb_set_cmap(&info->cmap, info); return 0;} /* * Initialisation */ int __init offb_init(void){ struct device_node *dp = NULL, *boot_disp = NULL; #if defined(CONFIG_BOOTX_TEXT) && defined(CONFIG_PPC32) struct device_node *macos_display = NULL;#endif if (fb_get_options("offb", NULL)) return -ENODEV; #if defined(CONFIG_BOOTX_TEXT) && defined(CONFIG_PPC32) /* If we're booted from BootX... */ if (boot_infos != 0) { unsigned long addr = (unsigned long) boot_infos->dispDeviceBase; u32 *addrp; u64 daddr, dsize; unsigned int flags; /* find the device node corresponding to the macos display */ while ((dp = of_find_node_by_type(dp, "display"))) { int i; /* * Look for an AAPL,address property first. */ unsigned int na; unsigned int *ap = (unsigned int *)get_property(dp, "AAPL,address", &na); if (ap != 0) { for (na /= sizeof(unsigned int); na > 0; --na, ++ap) if (*ap <= addr && addr < *ap + 0x1000000) { macos_display = dp; goto foundit; } } /* * See if the display address is in one of the address * ranges for this display. */ i = 0; for (;;) { addrp = of_get_address(dp, i++, &dsize, &flags); if (addrp == NULL) break; if (!(flags & IORESOURCE_MEM)) continue; daddr = of_translate_address(dp, addrp); if (daddr == OF_BAD_ADDR) continue; if (daddr <= addr && addr < (daddr + dsize)) { macos_display = dp; goto foundit; } } foundit: if (macos_display) { printk(KERN_INFO "MacOS display is %s\n", dp->full_name); break; } } /* initialize it */ offb_init_fb(macos_display ? macos_display-> name : "MacOS display", macos_display ? macos_display-> full_name : "MacOS display", boot_infos->dispDeviceRect[2], boot_infos->dispDeviceRect[3], boot_infos->dispDeviceDepth, boot_infos->dispDeviceRowBytes, addr, NULL); }#endif /* defined(CONFIG_BOOTX_TEXT) && defined(CONFIG_PPC32) */ for (dp = NULL; (dp = of_find_node_by_type(dp, "display"));) { if (get_property(dp, "linux,opened", NULL) && get_property(dp, "linux,boot-display", NULL)) { boot_disp = dp; offb_init_nodriver(dp); } } for (dp = NULL; (dp = of_find_node_by_type(dp, "display"));) { if (get_property(dp, "linux,opened", NULL) && dp != boot_disp) offb_init_nodriver(dp); } return 0;} static void __init offb_init_nodriver(struct device_node *dp){ int *pp, i; unsigned int len; int width = 640, height = 480, depth = 8, pitch; unsigned int flags, rsize, *up; u64 address = OF_BAD_ADDR; u32 *addrp; u64 asize; if ((pp = (int *) get_property(dp, "depth", &len)) != NULL && len == sizeof(int)) depth = *pp; if ((pp = (int *) get_property(dp, "width", &len)) != NULL && len == sizeof(int)) width = *pp; if ((pp = (int *) get_property(dp, "height", &len)) != NULL && len == sizeof(int)) height = *pp; if ((pp = (int *) get_property(dp, "linebytes", &len)) != NULL && len == sizeof(int)) { pitch = *pp; if (pitch == 1) pitch = 0x1000; } else pitch = width; rsize = (unsigned long)pitch * (unsigned long)height * (unsigned long)(depth / 8); /* Try to match device to a PCI device in order to get a properly * translated address rather then trying to decode the open firmware * stuff in various incorrect ways */#ifdef CONFIG_PCI /* First try to locate the PCI device if any */ { struct pci_dev *pdev = NULL; for_each_pci_dev(pdev) { if (dp == pci_device_to_OF_node(pdev)) break; } if (pdev) { for (i = 0; i < 6 && address == OF_BAD_ADDR; i++) { if ((pci_resource_flags(pdev, i) & IORESOURCE_MEM) && (pci_resource_len(pdev, i) >= rsize)) address = pci_resource_start(pdev, i); } pci_dev_put(pdev); } }#endif /* CONFIG_PCI */ /* This one is dodgy, we may drop it ... */ if (address == OF_BAD_ADDR && (up = (unsigned *) get_property(dp, "address", &len)) != NULL && len == sizeof(unsigned int)) address = (u64) * up; if (address == OF_BAD_ADDR) { for (i = 0; (addrp = of_get_address(dp, i, &asize, &flags)) != NULL; i++) { if (!(flags & IORESOURCE_MEM)) continue; if (asize >= pitch * height * depth / 8) break; } if (addrp == NULL) { printk(KERN_ERR "no framebuffer address found for %s\n", dp->full_name); return; } address = of_translate_address(dp, addrp); if (address == OF_BAD_ADDR) { printk(KERN_ERR "can't translate framebuffer address for %s\n", dp->full_name); return; } /* kludge for valkyrie */ if (strcmp(dp->name, "valkyrie") == 0) address += 0x1000; } offb_init_fb(dp->name, dp->full_name, width, height, depth, pitch, address, dp); } static void __init offb_init_fb(const char *name, const char *full_name, int width, int height, int depth, int pitch, unsigned long address, struct device_node *dp){ unsigned long res_size = pitch * height * depth / 8; struct offb_par *par = &default_par; unsigned long res_start = address; struct fb_fix_screeninfo *fix; struct fb_var_screeninfo *var; struct fb_info *info; int size; if (!request_mem_region(res_start, res_size, "offb")) return; printk(KERN_INFO "Using unsupported %dx%d %s at %lx, depth=%d, pitch=%d\n", width, height, name, address, depth, pitch); if (depth != 8 && depth != 16 && depth != 32) { printk(KERN_ERR "%s: can't use depth = %d\n", full_name, depth); release_mem_region(res_start, res_size); return; } size = sizeof(struct fb_info) + sizeof(u32) * 17; info = kmalloc(size, GFP_ATOMIC); if (info == 0) { release_mem_region(res_start, res_size); return; } memset(info, 0, size); fix = &info->fix; var = &info->var; strcpy(fix->id, "OFfb "); strncat(fix->id, name, sizeof(fix->id) - sizeof("OFfb ")); fix->id[sizeof(fix->id) - 1] = '\0'; var->xres = var->xres_virtual = width; var->yres = var->yres_virtual = height; fix->line_length = pitch; fix->smem_start = address; fix->smem_len = pitch * height; fix->type = FB_TYPE_PACKED_PIXELS; fix->type_aux = 0; par->cmap_type = cmap_unknown; if (depth == 8) { /* Palette hacks disabled for now */#if 0 if (dp && !strncmp(name, "ATY,Rage128", 11)) { unsigned long regbase = dp->addrs[2].address; par->cmap_adr = ioremap(regbase, 0x1FFF); par->cmap_type = cmap_r128; } else if (dp && (!strncmp(name, "ATY,RageM3pA", 12) || !strncmp(name, "ATY,RageM3p12A", 14))) { unsigned long regbase = dp->parent->addrs[2].address; par->cmap_adr = ioremap(regbase, 0x1FFF); par->cmap_type = cmap_M3A; } else if (dp && !strncmp(name, "ATY,RageM3pB", 12)) { unsigned long regbase = dp->parent->addrs[2].address; par->cmap_adr = ioremap(regbase, 0x1FFF); par->cmap_type = cmap_M3B; } else if (dp && !strncmp(name, "ATY,Rage6", 9)) { unsigned long regbase = dp->addrs[1].address; par->cmap_adr = ioremap(regbase, 0x1FFF); par->cmap_type = cmap_radeon; } else if (!strncmp(name, "ATY,", 4)) { unsigned long base = address & 0xff000000UL; par->cmap_adr = ioremap(base + 0x7ff000, 0x1000) + 0xcc0; par->cmap_data = par->cmap_adr + 1; par->cmap_type = cmap_m64; } else if (device_is_compatible(dp, "pci1014,b7")) { unsigned long regbase = dp->addrs[0].address; par->cmap_adr = ioremap(regbase + 0x6000, 0x1000); par->cmap_type = cmap_gxt2000; }#endif fix->visual = par->cmap_adr ? FB_VISUAL_PSEUDOCOLOR : FB_VISUAL_STATIC_PSEUDOCOLOR;Lines 1–500 of 574. Load more
/* * linux/drivers/video/offb.c -- Open Firmware based frame buffer device * * Copyright (C) 1997 Geert Uytterhoeven * * This driver is partly based on the PowerMac console driver: * * Copyright (C) 1996 Paul Mackerras * * 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. */ #include <linux/config.h> #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/init.h> #include <linux/ioport.h> #include <linux/pci.h> #include <asm/io.h> #include <asm/prom.h> #ifdef CONFIG_PPC64 #include <asm/pci-bridge.h> #endif #ifdef CONFIG_PPC32 #include <asm/bootx.h> #endif #include "macmodes.h" /* Supported palette hacks */ enum { cmap_unknown, cmap_m64, /* ATI Mach64 */ cmap_r128, /* ATI Rage128 */ cmap_M3A, /* ATI Rage Mobility M3 Head A */ cmap_M3B, /* ATI Rage Mobility M3 Head B */ cmap_radeon, /* ATI Radeon */ cmap_gxt2000, /* IBM GXT2000 */ }; struct offb_par { volatile void __iomem *cmap_adr; volatile void __iomem *cmap_data; int cmap_type; int blanked; }; struct offb_par default_par; /* * Interface used by the world */ int offb_init(void); static int offb_setcolreg(u_int regno, u_int red, u_int green, u_int blue, u_int transp, struct fb_info *info); static int offb_blank(int blank, struct fb_info *info); #ifdef CONFIG_PPC32 extern boot_infos_t *boot_infos; #endif static void offb_init_nodriver(struct device_node *); static void offb_init_fb(const char *name, const char *full_name, int width, int height, int depth, int pitch, unsigned long address, struct device_node *dp); static struct fb_ops offb_ops = { .owner = THIS_MODULE, .fb_setcolreg = offb_setcolreg, .fb_blank = offb_blank, .fb_fillrect = cfb_fillrect, .fb_copyarea = cfb_copyarea, .fb_imageblit = cfb_imageblit, }; /* * 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. */ static int offb_setcolreg(u_int regno, u_int red, u_int green, u_int blue, u_int transp, struct fb_info *info) { struct offb_par *par = (struct offb_par *) info->par; if (!par->cmap_adr || regno > 255) return 1; red >>= 8; green >>= 8; blue >>= 8; switch (par->cmap_type) { case cmap_m64: writeb(regno, par->cmap_adr); writeb(red, par->cmap_data); writeb(green, par->cmap_data); writeb(blue, par->cmap_data); break; case cmap_M3A: /* Clear PALETTE_ACCESS_CNTL in DAC_CNTL */ out_le32(par->cmap_adr + 0x58, in_le32(par->cmap_adr + 0x58) & ~0x20); case cmap_r128: /* Set palette index & data */ out_8(par->cmap_adr + 0xb0, regno); out_le32(par->cmap_adr + 0xb4, (red << 16 | green << 8 | blue)); break; case cmap_M3B: /* Set PALETTE_ACCESS_CNTL in DAC_CNTL */ out_le32(par->cmap_adr + 0x58, in_le32(par->cmap_adr + 0x58) | 0x20); /* Set palette index & data */ out_8(par->cmap_adr + 0xb0, regno); out_le32(par->cmap_adr + 0xb4, (red << 16 | green << 8 | blue)); break; case cmap_radeon: /* Set palette index & data (could be smarter) */ out_8(par->cmap_adr + 0xb0, regno); out_le32(par->cmap_adr + 0xb4, (red << 16 | green << 8 | blue)); break; case cmap_gxt2000: out_le32((unsigned __iomem *) par->cmap_adr + regno, (red << 16 | green << 8 | blue)); break; } if (regno < 16) switch (info->var.bits_per_pixel) { case 16: ((u16 *) (info->pseudo_palette))[regno] = (regno << 10) | (regno << 5) | regno; break; case 32: { int i = (regno << 8) | regno; ((u32 *) (info->pseudo_palette))[regno] = (i << 16) | i; break; } } return 0; } /* * Blank the display. */ static int offb_blank(int blank, struct fb_info *info) { struct offb_par *par = (struct offb_par *) info->par; int i, j; if (!par->cmap_adr) return 0; if (!par->blanked) if (!blank) return 0; par->blanked = blank; if (blank) for (i = 0; i < 256; i++) { switch (par->cmap_type) { case cmap_m64: writeb(i, par->cmap_adr); for (j = 0; j < 3; j++) writeb(0, par->cmap_data); break; case cmap_M3A: /* Clear PALETTE_ACCESS_CNTL in DAC_CNTL */ out_le32(par->cmap_adr + 0x58, in_le32(par->cmap_adr + 0x58) & ~0x20); case cmap_r128: /* Set palette index & data */ out_8(par->cmap_adr + 0xb0, i); out_le32(par->cmap_adr + 0xb4, 0); break; case cmap_M3B: /* Set PALETTE_ACCESS_CNTL in DAC_CNTL */ out_le32(par->cmap_adr + 0x58, in_le32(par->cmap_adr + 0x58) | 0x20); /* Set palette index & data */ out_8(par->cmap_adr + 0xb0, i); out_le32(par->cmap_adr + 0xb4, 0); break; case cmap_radeon: out_8(par->cmap_adr + 0xb0, i); out_le32(par->cmap_adr + 0xb4, 0); break; case cmap_gxt2000: out_le32((unsigned __iomem *) par->cmap_adr + i, 0); break; } } else fb_set_cmap(&info->cmap, info); return 0; } /* * Initialisation */ int __init offb_init(void) { struct device_node *dp = NULL, *boot_disp = NULL; #if defined(CONFIG_BOOTX_TEXT) && defined(CONFIG_PPC32) struct device_node *macos_display = NULL; #endif if (fb_get_options("offb", NULL)) return -ENODEV; #if defined(CONFIG_BOOTX_TEXT) && defined(CONFIG_PPC32) /* If we're booted from BootX... */ if (boot_infos != 0) { unsigned long addr = (unsigned long) boot_infos->dispDeviceBase; u32 *addrp; u64 daddr, dsize; unsigned int flags; /* find the device node corresponding to the macos display */ while ((dp = of_find_node_by_type(dp, "display"))) { int i; /* * Look for an AAPL,address property first. */ unsigned int na; unsigned int *ap = (unsigned int *)get_property(dp, "AAPL,address", &na); if (ap != 0) { for (na /= sizeof(unsigned int); na > 0; --na, ++ap) if (*ap <= addr && addr < *ap + 0x1000000) { macos_display = dp; goto foundit; } } /* * See if the display address is in one of the address * ranges for this display. */ i = 0; for (;;) { addrp = of_get_address(dp, i++, &dsize, &flags); if (addrp == NULL) break; if (!(flags & IORESOURCE_MEM)) continue; daddr = of_translate_address(dp, addrp); if (daddr == OF_BAD_ADDR) continue; if (daddr <= addr && addr < (daddr + dsize)) { macos_display = dp; goto foundit; } } foundit: if (macos_display) { printk(KERN_INFO "MacOS display is %s\n", dp->full_name); break; } } /* initialize it */ offb_init_fb(macos_display ? macos_display-> name : "MacOS display", macos_display ? macos_display-> full_name : "MacOS display", boot_infos->dispDeviceRect[2], boot_infos->dispDeviceRect[3], boot_infos->dispDeviceDepth, boot_infos->dispDeviceRowBytes, addr, NULL); } #endif /* defined(CONFIG_BOOTX_TEXT) && defined(CONFIG_PPC32) */ for (dp = NULL; (dp = of_find_node_by_type(dp, "display"));) { if (get_property(dp, "linux,opened", NULL) && get_property(dp, "linux,boot-display", NULL)) { boot_disp = dp; offb_init_nodriver(dp); } } for (dp = NULL; (dp = of_find_node_by_type(dp, "display"));) { if (get_property(dp, "linux,opened", NULL) && dp != boot_disp) offb_init_nodriver(dp); } return 0; } static void __init offb_init_nodriver(struct device_node *dp) { int *pp, i; unsigned int len; int width = 640, height = 480, depth = 8, pitch; unsigned int flags, rsize, *up; u64 address = OF_BAD_ADDR; u32 *addrp; u64 asize; if ((pp = (int *) get_property(dp, "depth", &len)) != NULL && len == sizeof(int)) depth = *pp; if ((pp = (int *) get_property(dp, "width", &len)) != NULL && len == sizeof(int)) width = *pp; if ((pp = (int *) get_property(dp, "height", &len)) != NULL && len == sizeof(int)) height = *pp; if ((pp = (int *) get_property(dp, "linebytes", &len)) != NULL && len == sizeof(int)) { pitch = *pp; if (pitch == 1) pitch = 0x1000; } else pitch = width; rsize = (unsigned long)pitch * (unsigned long)height * (unsigned long)(depth / 8); /* Try to match device to a PCI device in order to get a properly * translated address rather then trying to decode the open firmware * stuff in various incorrect ways */ #ifdef CONFIG_PCI /* First try to locate the PCI device if any */ { struct pci_dev *pdev = NULL; for_each_pci_dev(pdev) { if (dp == pci_device_to_OF_node(pdev)) break; } if (pdev) { for (i = 0; i < 6 && address == OF_BAD_ADDR; i++) { if ((pci_resource_flags(pdev, i) & IORESOURCE_MEM) && (pci_resource_len(pdev, i) >= rsize)) address = pci_resource_start(pdev, i); } pci_dev_put(pdev); } } #endif /* CONFIG_PCI */ /* This one is dodgy, we may drop it ... */ if (address == OF_BAD_ADDR && (up = (unsigned *) get_property(dp, "address", &len)) != NULL && len == sizeof(unsigned int)) address = (u64) * up; if (address == OF_BAD_ADDR) { for (i = 0; (addrp = of_get_address(dp, i, &asize, &flags)) != NULL; i++) { if (!(flags & IORESOURCE_MEM)) continue; if (asize >= pitch * height * depth / 8) break; } if (addrp == NULL) { printk(KERN_ERR "no framebuffer address found for %s\n", dp->full_name); return; } address = of_translate_address(dp, addrp); if (address == OF_BAD_ADDR) { printk(KERN_ERR "can't translate framebuffer address for %s\n", dp->full_name); return; } /* kludge for valkyrie */ if (strcmp(dp->name, "valkyrie") == 0) address += 0x1000; } offb_init_fb(dp->name, dp->full_name, width, height, depth, pitch, address, dp); } static void __init offb_init_fb(const char *name, const char *full_name, int width, int height, int depth, int pitch, unsigned long address, struct device_node *dp) { unsigned long res_size = pitch * height * depth / 8; struct offb_par *par = &default_par; unsigned long res_start = address; struct fb_fix_screeninfo *fix; struct fb_var_screeninfo *var; struct fb_info *info; int size; if (!request_mem_region(res_start, res_size, "offb")) return; printk(KERN_INFO "Using unsupported %dx%d %s at %lx, depth=%d, pitch=%d\n", width, height, name, address, depth, pitch); if (depth != 8 && depth != 16 && depth != 32) { printk(KERN_ERR "%s: can't use depth = %d\n", full_name, depth); release_mem_region(res_start, res_size); return; } size = sizeof(struct fb_info) + sizeof(u32) * 17; info = kmalloc(size, GFP_ATOMIC); if (info == 0) { release_mem_region(res_start, res_size); return; } memset(info, 0, size); fix = &info->fix; var = &info->var; strcpy(fix->id, "OFfb "); strncat(fix->id, name, sizeof(fix->id) - sizeof("OFfb ")); fix->id[sizeof(fix->id) - 1] = '\0'; var->xres = var->xres_virtual = width; var->yres = var->yres_virtual = height; fix->line_length = pitch; fix->smem_start = address; fix->smem_len = pitch * height; fix->type = FB_TYPE_PACKED_PIXELS; fix->type_aux = 0; par->cmap_type = cmap_unknown; if (depth == 8) { /* Palette hacks disabled for now */ #if 0 if (dp && !strncmp(name, "ATY,Rage128", 11)) { unsigned long regbase = dp->addrs[2].address; par->cmap_adr = ioremap(regbase, 0x1FFF); par->cmap_type = cmap_r128; } else if (dp && (!strncmp(name, "ATY,RageM3pA", 12) || !strncmp(name, "ATY,RageM3p12A", 14))) { unsigned long regbase = dp->parent->addrs[2].address; par->cmap_adr = ioremap(regbase, 0x1FFF); par->cmap_type = cmap_M3A; } else if (dp && !strncmp(name, "ATY,RageM3pB", 12)) { unsigned long regbase = dp->parent->addrs[2].address; par->cmap_adr = ioremap(regbase, 0x1FFF); par->cmap_type = cmap_M3B; } else if (dp && !strncmp(name, "ATY,Rage6", 9)) { unsigned long regbase = dp->addrs[1].address; par->cmap_adr = ioremap(regbase, 0x1FFF); par->cmap_type = cmap_radeon; } else if (!strncmp(name, "ATY,", 4)) { unsigned long base = address & 0xff000000UL; par->cmap_adr = ioremap(base + 0x7ff000, 0x1000) + 0xcc0; par->cmap_data = par->cmap_adr + 1; par->cmap_type = cmap_m64; } else if (device_is_compatible(dp, "pci1014,b7")) { unsigned long regbase = dp->addrs[0].address; par->cmap_adr = ioremap(regbase + 0x6000, 0x1000); par->cmap_type = cmap_gxt2000; } #endif fix->visual = par->cmap_adr ? FB_VISUAL_PSEUDOCOLOR : FB_VISUAL_STATIC_PSEUDOCOLOR;