diff options
author | Tomi Valkeinen <tomi.valkeinen@ti.com> | 2014-02-13 17:31:38 +0400 |
---|---|---|
committer | Tomi Valkeinen <tomi.valkeinen@ti.com> | 2014-04-17 09:10:19 +0400 |
commit | f7018c21350204c4cf628462f229d44d03545254 (patch) | |
tree | 408787177164cf51cc06f7aabdb04fcff8d2b6aa /drivers/video/offb.c | |
parent | c26ef3eb3c11274bad1b64498d0a134f85755250 (diff) | |
download | linux-f7018c21350204c4cf628462f229d44d03545254.tar.xz |
video: move fbdev to drivers/video/fbdev
The drivers/video directory is a mess. It contains generic video related
files, directories for backlight, console, linux logo, lots of fbdev
device drivers, fbdev framework files.
Make some order into the chaos by creating drivers/video/fbdev
directory, and move all fbdev related files there.
No functionality is changed, although I guess it is possible that some
subtle Makefile build order related issue could be created by this
patch.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: Rob Clark <robdclark@gmail.com>
Acked-by: Jingoo Han <jg1.han@samsung.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to 'drivers/video/offb.c')
-rw-r--r-- | drivers/video/offb.c | 687 |
1 files changed, 0 insertions, 687 deletions
diff --git a/drivers/video/offb.c b/drivers/video/offb.c deleted file mode 100644 index 7d44d669d5b6..000000000000 --- a/drivers/video/offb.c +++ /dev/null @@ -1,687 +0,0 @@ -/* - * 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/module.h> -#include <linux/kernel.h> -#include <linux/errno.h> -#include <linux/string.h> -#include <linux/mm.h> -#include <linux/vmalloc.h> -#include <linux/delay.h> -#include <linux/of.h> -#include <linux/of_address.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> - -#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_simple, /* 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 */ - cmap_avivo, /* ATI R5xx */ - cmap_qemu, /* qemu vga */ -}; - -struct offb_par { - volatile void __iomem *cmap_adr; - volatile void __iomem *cmap_data; - int cmap_type; - int blanked; -}; - -struct offb_par default_par; - -#ifdef CONFIG_PPC32 -extern boot_infos_t *boot_infos; -#endif - -/* Definitions used by the Avivo palette hack */ -#define AVIVO_DC_LUT_RW_SELECT 0x6480 -#define AVIVO_DC_LUT_RW_MODE 0x6484 -#define AVIVO_DC_LUT_RW_INDEX 0x6488 -#define AVIVO_DC_LUT_SEQ_COLOR 0x648c -#define AVIVO_DC_LUT_PWL_DATA 0x6490 -#define AVIVO_DC_LUT_30_COLOR 0x6494 -#define AVIVO_DC_LUT_READ_PIPE_SELECT 0x6498 -#define AVIVO_DC_LUT_WRITE_EN_MASK 0x649c -#define AVIVO_DC_LUT_AUTOFILL 0x64a0 - -#define AVIVO_DC_LUTA_CONTROL 0x64c0 -#define AVIVO_DC_LUTA_BLACK_OFFSET_BLUE 0x64c4 -#define AVIVO_DC_LUTA_BLACK_OFFSET_GREEN 0x64c8 -#define AVIVO_DC_LUTA_BLACK_OFFSET_RED 0x64cc -#define AVIVO_DC_LUTA_WHITE_OFFSET_BLUE 0x64d0 -#define AVIVO_DC_LUTA_WHITE_OFFSET_GREEN 0x64d4 -#define AVIVO_DC_LUTA_WHITE_OFFSET_RED 0x64d8 - -#define AVIVO_DC_LUTB_CONTROL 0x6cc0 -#define AVIVO_DC_LUTB_BLACK_OFFSET_BLUE 0x6cc4 -#define AVIVO_DC_LUTB_BLACK_OFFSET_GREEN 0x6cc8 -#define AVIVO_DC_LUTB_BLACK_OFFSET_RED 0x6ccc -#define AVIVO_DC_LUTB_WHITE_OFFSET_BLUE 0x6cd0 -#define AVIVO_DC_LUTB_WHITE_OFFSET_GREEN 0x6cd4 -#define AVIVO_DC_LUTB_WHITE_OFFSET_RED 0x6cd8 - -#define FB_RIGHT_POS(p, bpp) (fb_be_math(p) ? 0 : (32 - (bpp))) - -static inline u32 offb_cmap_byteswap(struct fb_info *info, u32 value) -{ - u32 bpp = info->var.bits_per_pixel; - - return cpu_to_be32(value) >> FB_RIGHT_POS(info, bpp); -} - - /* - * 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 (info->fix.visual == FB_VISUAL_TRUECOLOR) { - u32 *pal = info->pseudo_palette; - u32 cr = red >> (16 - info->var.red.length); - u32 cg = green >> (16 - info->var.green.length); - u32 cb = blue >> (16 - info->var.blue.length); - u32 value; - - if (regno >= 16) - return -EINVAL; - - value = (cr << info->var.red.offset) | - (cg << info->var.green.offset) | - (cb << info->var.blue.offset); - if (info->var.transp.length > 0) { - u32 mask = (1 << info->var.transp.length) - 1; - mask <<= info->var.transp.offset; - value |= mask; - } - pal[regno] = offb_cmap_byteswap(info, value); - return 0; - } - - if (regno > 255) - return -EINVAL; - - red >>= 8; - green >>= 8; - blue >>= 8; - - if (!par->cmap_adr) - return 0; - - switch (par->cmap_type) { - case cmap_simple: - 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; - case cmap_avivo: - /* Write to both LUTs for now */ - writel(1, par->cmap_adr + AVIVO_DC_LUT_RW_SELECT); - writeb(regno, par->cmap_adr + AVIVO_DC_LUT_RW_INDEX); - writel(((red) << 22) | ((green) << 12) | ((blue) << 2), - par->cmap_adr + AVIVO_DC_LUT_30_COLOR); - writel(0, par->cmap_adr + AVIVO_DC_LUT_RW_SELECT); - writeb(regno, par->cmap_adr + AVIVO_DC_LUT_RW_INDEX); - writel(((red) << 22) | ((green) << 12) | ((blue) << 2), - par->cmap_adr + AVIVO_DC_LUT_30_COLOR); - 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_simple: - 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; - case cmap_avivo: - writel(1, par->cmap_adr + AVIVO_DC_LUT_RW_SELECT); - writeb(i, par->cmap_adr + AVIVO_DC_LUT_RW_INDEX); - writel(0, par->cmap_adr + AVIVO_DC_LUT_30_COLOR); - writel(0, par->cmap_adr + AVIVO_DC_LUT_RW_SELECT); - writeb(i, par->cmap_adr + AVIVO_DC_LUT_RW_INDEX); - writel(0, par->cmap_adr + AVIVO_DC_LUT_30_COLOR); - break; - } - } else - fb_set_cmap(&info->cmap, info); - return 0; -} - -static int offb_set_par(struct fb_info *info) -{ - struct offb_par *par = (struct offb_par *) info->par; - - /* On avivo, initialize palette control */ - if (par->cmap_type == cmap_avivo) { - writel(0, par->cmap_adr + AVIVO_DC_LUTA_CONTROL); - writel(0, par->cmap_adr + AVIVO_DC_LUTA_BLACK_OFFSET_BLUE); - writel(0, par->cmap_adr + AVIVO_DC_LUTA_BLACK_OFFSET_GREEN); - writel(0, par->cmap_adr + AVIVO_DC_LUTA_BLACK_OFFSET_RED); - writel(0x0000ffff, par->cmap_adr + AVIVO_DC_LUTA_WHITE_OFFSET_BLUE); - writel(0x0000ffff, par->cmap_adr + AVIVO_DC_LUTA_WHITE_OFFSET_GREEN); - writel(0x0000ffff, par->cmap_adr + AVIVO_DC_LUTA_WHITE_OFFSET_RED); - writel(0, par->cmap_adr + AVIVO_DC_LUTB_CONTROL); - writel(0, par->cmap_adr + AVIVO_DC_LUTB_BLACK_OFFSET_BLUE); - writel(0, par->cmap_adr + AVIVO_DC_LUTB_BLACK_OFFSET_GREEN); - writel(0, par->cmap_adr + AVIVO_DC_LUTB_BLACK_OFFSET_RED); - writel(0x0000ffff, par->cmap_adr + AVIVO_DC_LUTB_WHITE_OFFSET_BLUE); - writel(0x0000ffff, par->cmap_adr + AVIVO_DC_LUTB_WHITE_OFFSET_GREEN); - writel(0x0000ffff, par->cmap_adr + AVIVO_DC_LUTB_WHITE_OFFSET_RED); - writel(1, par->cmap_adr + AVIVO_DC_LUT_RW_SELECT); - writel(0, par->cmap_adr + AVIVO_DC_LUT_RW_MODE); - writel(0x0000003f, par->cmap_adr + AVIVO_DC_LUT_WRITE_EN_MASK); - writel(0, par->cmap_adr + AVIVO_DC_LUT_RW_SELECT); - writel(0, par->cmap_adr + AVIVO_DC_LUT_RW_MODE); - writel(0x0000003f, par->cmap_adr + AVIVO_DC_LUT_WRITE_EN_MASK); - } - return 0; -} - -static void offb_destroy(struct fb_info *info) -{ - if (info->screen_base) - iounmap(info->screen_base); - release_mem_region(info->apertures->ranges[0].base, info->apertures->ranges[0].size); - framebuffer_release(info); -} - -static struct fb_ops offb_ops = { - .owner = THIS_MODULE, - .fb_destroy = offb_destroy, - .fb_setcolreg = offb_setcolreg, - .fb_set_par = offb_set_par, - .fb_blank = offb_blank, - .fb_fillrect = cfb_fillrect, - .fb_copyarea = cfb_copyarea, - .fb_imageblit = cfb_imageblit, -}; - -static void __iomem *offb_map_reg(struct device_node *np, int index, - unsigned long offset, unsigned long size) -{ - const __be32 *addrp; - u64 asize, taddr; - unsigned int flags; - - addrp = of_get_pci_address(np, index, &asize, &flags); - if (addrp == NULL) - addrp = of_get_address(np, index, &asize, &flags); - if (addrp == NULL) - return NULL; - if ((flags & (IORESOURCE_IO | IORESOURCE_MEM)) == 0) - return NULL; - if ((offset + size) > asize) - return NULL; - taddr = of_translate_address(np, addrp); - if (taddr == OF_BAD_ADDR) - return NULL; - return ioremap(taddr + offset, size); -} - -static void offb_init_palette_hacks(struct fb_info *info, struct device_node *dp, - const char *name, unsigned long address) -{ - struct offb_par *par = (struct offb_par *) info->par; - - if (dp && !strncmp(name, "ATY,Rage128", 11)) { - par->cmap_adr = offb_map_reg(dp, 2, 0, 0x1fff); - if (par->cmap_adr) - par->cmap_type = cmap_r128; - } else if (dp && (!strncmp(name, "ATY,RageM3pA", 12) - || !strncmp(name, "ATY,RageM3p12A", 14))) { - par->cmap_adr = offb_map_reg(dp, 2, 0, 0x1fff); - if (par->cmap_adr) - par->cmap_type = cmap_M3A; - } else if (dp && !strncmp(name, "ATY,RageM3pB", 12)) { - par->cmap_adr = offb_map_reg(dp, 2, 0, 0x1fff); - if (par->cmap_adr) - par->cmap_type = cmap_M3B; - } else if (dp && !strncmp(name, "ATY,Rage6", 9)) { - par->cmap_adr = offb_map_reg(dp, 1, 0, 0x1fff); - if (par->cmap_adr) - 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_simple; - } else if (dp && (of_device_is_compatible(dp, "pci1014,b7") || - of_device_is_compatible(dp, "pci1014,21c"))) { - par->cmap_adr = offb_map_reg(dp, 0, 0x6000, 0x1000); - if (par->cmap_adr) - par->cmap_type = cmap_gxt2000; - } else if (dp && !strncmp(name, "vga,Display-", 12)) { - /* Look for AVIVO initialized by SLOF */ - struct device_node *pciparent = of_get_parent(dp); - const u32 *vid, *did; - vid = of_get_property(pciparent, "vendor-id", NULL); - did = of_get_property(pciparent, "device-id", NULL); - /* This will match most R5xx */ - if (vid && did && *vid == 0x1002 && - ((*did >= 0x7100 && *did < 0x7800) || - (*did >= 0x9400))) { - par->cmap_adr = offb_map_reg(pciparent, 2, 0, 0x10000); - if (par->cmap_adr) - par->cmap_type = cmap_avivo; - } - of_node_put(pciparent); - } else if (dp && of_device_is_compatible(dp, "qemu,std-vga")) { -#ifdef __BIG_ENDIAN - const __be32 io_of_addr[3] = { 0x01000000, 0x0, 0x0 }; -#else - const __be32 io_of_addr[3] = { 0x00000001, 0x0, 0x0 }; -#endif - u64 io_addr = of_translate_address(dp, io_of_addr); - if (io_addr != OF_BAD_ADDR) { - par->cmap_adr = ioremap(io_addr + 0x3c8, 2); - if (par->cmap_adr) { - par->cmap_type = cmap_simple; - par->cmap_data = par->cmap_adr + 1; - } - } - } - info->fix.visual = (par->cmap_type != cmap_unknown) ? - FB_VISUAL_PSEUDOCOLOR : FB_VISUAL_STATIC_PSEUDOCOLOR; -} - -static void __init offb_init_fb(const char *name, const char *full_name, - int width, int height, int depth, - int pitch, unsigned long address, - int foreign_endian, struct device_node *dp) -{ - unsigned long res_size = pitch * height; - 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; - - 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 != 15 && 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; - } - - info = framebuffer_alloc(sizeof(u32) * 16, NULL); - - if (info == 0) { - release_mem_region(res_start, res_size); - return; - } - - fix = &info->fix; - var = &info->var; - info->par = par; - - 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) - offb_init_palette_hacks(info, dp, name, address); - else - fix->visual = FB_VISUAL_TRUECOLOR; - - var->xoffset = var->yoffset = 0; - switch (depth) { - case 8: - var->bits_per_pixel = 8; - var->red.offset = 0; - var->red.length = 8; - var->green.offset = 0; - var->green.length = 8; - var->blue.offset = 0; - var->blue.length = 8; - var->transp.offset = 0; - var->transp.length = 0; - break; - case 15: /* RGB 555 */ - var->bits_per_pixel = 16; - var->red.offset = 10; - var->red.length = 5; - var->green.offset = 5; - var->green.length = 5; - var->blue.offset = 0; - var->blue.length = 5; - var->transp.offset = 0; - var->transp.length = 0; - break; - case 16: /* RGB 565 */ - var->bits_per_pixel = 16; - var->red.offset = 11; - var->red.length = 5; - var->green.offset = 5; - var->green.length = 6; - var->blue.offset = 0; - var->blue.length = 5; - var->transp.offset = 0; - var->transp.length = 0; - break; - case 32: /* RGB 888 */ - var->bits_per_pixel = 32; - var->red.offset = 16; - var->red.length = 8; - var->green.offset = 8; - var->green.length = 8; - var->blue.offset = 0; - var->blue.length = 8; - var->transp.offset = 24; - var->transp.length = 8; - break; - } - var->red.msb_right = var->green.msb_right = var->blue.msb_right = - var->transp.msb_right = 0; - var->grayscale = 0; - var->nonstd = 0; - var->activate = 0; - var->height = var->width = -1; - var->pixclock = 10000; - var->left_margin = var->right_margin = 16; - var->upper_margin = var->lower_margin = 16; - var->hsync_len = var->vsync_len = 8; - var->sync = 0; - var->vmode = FB_VMODE_NONINTERLACED; - - /* set offb aperture size for generic probing */ - info->apertures = alloc_apertures(1); - if (!info->apertures) - goto out_aper; - info->apertures->ranges[0].base = address; - info->apertures->ranges[0].size = fix->smem_len; - - info->fbops = &offb_ops; - info->screen_base = ioremap(address, fix->smem_len); - info->pseudo_palette = (void *) (info + 1); - info->flags = FBINFO_DEFAULT | FBINFO_MISC_FIRMWARE | foreign_endian; - - fb_alloc_cmap(&info->cmap, 256, 0); - - if (register_framebuffer(info) < 0) - goto out_err; - - fb_info(info, "Open Firmware frame buffer device on %s\n", full_name); - return; - -out_err: - iounmap(info->screen_base); -out_aper: - iounmap(par->cmap_adr); - par->cmap_adr = NULL; - framebuffer_release(info); - release_mem_region(res_start, res_size); -} - - -static void __init offb_init_nodriver(struct device_node *dp, int no_real_node) -{ - unsigned int len; - int i, width = 640, height = 480, depth = 8, pitch = 640; - unsigned int flags, rsize, addr_prop = 0; - unsigned long max_size = 0; - u64 rstart, address = OF_BAD_ADDR; - const __be32 *pp, *addrp, *up; - u64 asize; - int foreign_endian = 0; - -#ifdef __BIG_ENDIAN - if (of_get_property(dp, "little-endian", NULL)) - foreign_endian = FBINFO_FOREIGN_ENDIAN; -#else - if (of_get_property(dp, "big-endian", NULL)) - foreign_endian = FBINFO_FOREIGN_ENDIAN; -#endif - - pp = of_get_property(dp, "linux,bootx-depth", &len); - if (pp == NULL) - pp = of_get_property(dp, "depth", &len); - if (pp && len == sizeof(u32)) - depth = be32_to_cpup(pp); - - pp = of_get_property(dp, "linux,bootx-width", &len); - if (pp == NULL) - pp = of_get_property(dp, "width", &len); - if (pp && len == sizeof(u32)) - width = be32_to_cpup(pp); - - pp = of_get_property(dp, "linux,bootx-height", &len); - if (pp == NULL) - pp = of_get_property(dp, "height", &len); - if (pp && len == sizeof(u32)) - height = be32_to_cpup(pp); - - pp = of_get_property(dp, "linux,bootx-linebytes", &len); - if (pp == NULL) - pp = of_get_property(dp, "linebytes", &len); - if (pp && len == sizeof(u32) && (*pp != 0xffffffffu)) - pitch = be32_to_cpup(pp); - else - pitch = width * ((depth + 7) / 8); - - rsize = (unsigned long)pitch * (unsigned long)height; - - /* Ok, now we try to figure out the address of the framebuffer. - * - * Unfortunately, Open Firmware doesn't provide a standard way to do - * so. All we can do is a dodgy heuristic that happens to work in - * practice. On most machines, the "address" property contains what - * we need, though not on Matrox cards found in IBM machines. What I've - * found that appears to give good results is to go through the PCI - * ranges and pick one that is both big enough and if possible encloses - * the "address" property. If none match, we pick the biggest - */ - up = of_get_property(dp, "linux,bootx-addr", &len); - if (up == NULL) - up = of_get_property(dp, "address", &len); - if (up && len == sizeof(u32)) - addr_prop = *up; - - /* Hack for when BootX is passing us */ - if (no_real_node) - goto skip_addr; - - for (i = 0; (addrp = of_get_address(dp, i, &asize, &flags)) - != NULL; i++) { - int match_addrp = 0; - - if (!(flags & IORESOURCE_MEM)) - continue; - if (asize < rsize) - continue; - rstart = of_translate_address(dp, addrp); - if (rstart == OF_BAD_ADDR) - continue; - if (addr_prop && (rstart <= addr_prop) && - ((rstart + asize) >= (addr_prop + rsize))) - match_addrp = 1; - if (match_addrp) { - address = addr_prop; - break; - } - if (rsize > max_size) { - max_size = rsize; - address = OF_BAD_ADDR; - } - - if (address == OF_BAD_ADDR) - address = rstart; - } - skip_addr: - if (address == OF_BAD_ADDR && addr_prop) - address = (u64)addr_prop; - if (address != OF_BAD_ADDR) { - /* kludge for valkyrie */ - if (strcmp(dp->name, "valkyrie") == 0) - address += 0x1000; - offb_init_fb(no_real_node ? "bootx" : dp->name, - no_real_node ? "display" : dp->full_name, - width, height, depth, pitch, address, - foreign_endian, no_real_node ? NULL : dp); - } -} - -static int __init offb_init(void) -{ - struct device_node *dp = NULL, *boot_disp = NULL; - - if (fb_get_options("offb", NULL)) - return -ENODEV; - - /* Check if we have a MacOS display without a node spec */ - if (of_get_property(of_chosen, "linux,bootx-noscreen", NULL) != NULL) { - /* The old code tried to work out which node was the MacOS - * display based on the address. I'm dropping that since the - * lack of a node spec only happens with old BootX versions - * (users can update) and with this code, they'll still get - * a display (just not the palette hacks). - */ - offb_init_nodriver(of_chosen, 1); - } - - for (dp = NULL; (dp = of_find_node_by_type(dp, "display"));) { - if (of_get_property(dp, "linux,opened", NULL) && - of_get_property(dp, "linux,boot-display", NULL)) { - boot_disp = dp; - offb_init_nodriver(dp, 0); - } - } - for (dp = NULL; (dp = of_find_node_by_type(dp, "display"));) { - if (of_get_property(dp, "linux,opened", NULL) && - dp != boot_disp) - offb_init_nodriver(dp, 0); - } - - return 0; -} - - -module_init(offb_init); -MODULE_LICENSE("GPL"); |