mirror of
https://github.com/archlinuxarm/PKGBUILDs.git
synced 2024-11-28 22:57:37 +00:00
79 lines
2.4 KiB
Diff
79 lines
2.4 KiB
Diff
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Index: kexec-tools-1.101/kexec/arch/i386/x86-linux-setup.c
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===================================================================
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--- kexec-tools-1.101.orig/kexec/arch/i386/x86-linux-setup.c 2006-03-03 10:51:31.000000000 +0100
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+++ kexec-tools-1.101/kexec/arch/i386/x86-linux-setup.c 2006-03-10 14:02:20.000000000 +0100
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@@ -24,6 +24,8 @@
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#include <sys/stat.h>
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#include <sys/mman.h>
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#include <fcntl.h>
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+#include <sys/ioctl.h>
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+#include <linux/fb.h>
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#include <unistd.h>
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#include <x86/x86-linux.h>
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#include "../../kexec.h"
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@@ -94,6 +96,56 @@ void setup_linux_bootloader_parameters(
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cmdline_ptr[cmdline_len - 1] = '\0';
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}
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+int setup_linux_vesafb(struct x86_linux_param_header *real_mode)
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+{
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+ struct fb_fix_screeninfo fix;
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+ struct fb_var_screeninfo var;
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+ int fd;
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+
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+ fd = open("/dev/fb0", O_RDONLY);
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+ if (-1 == fd)
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+ return -1;
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+
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+ if (-1 == ioctl(fd, FBIOGET_FSCREENINFO, &fix))
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+ goto out;
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+ if (-1 == ioctl(fd, FBIOGET_VSCREENINFO, &var))
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+ goto out;
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+ if (0 != strcmp(fix.id, "VESA VGA"))
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+ goto out;
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+ close(fd);
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+
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+ real_mode->orig_video_isVGA = 0x23 /* VIDEO_TYPE_VLFB */;
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+ real_mode->lfb_width = var.xres;
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+ real_mode->lfb_height = var.yres;
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+ real_mode->lfb_depth = var.bits_per_pixel;
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+ real_mode->lfb_base = fix.smem_start;
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+ real_mode->lfb_linelength = fix.line_length;
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+ real_mode->vesapm_seg = 0;
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+
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+ /* fixme: better get size from /proc/iomem */
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+ real_mode->lfb_size = (fix.smem_len + 65535) / 65536;
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+ real_mode->pages = (fix.smem_len + 4095) / 4096;
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+
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+ if (var.bits_per_pixel > 8) {
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+ real_mode->red_pos = var.red.offset;
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+ real_mode->red_size = var.red.length;
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+ real_mode->green_pos = var.green.offset;
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+ real_mode->green_size = var.green.length;
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+ real_mode->blue_pos = var.blue.offset;
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+ real_mode->blue_size = var.blue.length;
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+ real_mode->rsvd_pos = var.transp.offset;
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+ real_mode->rsvd_size = var.transp.length;
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+ }
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+ fprintf(stderr, "%s: %dx%dx%d @ %lx +%lx\n", __FUNCTION__,
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+ var.xres, var.yres, var.bits_per_pixel,
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+ fix.smem_start, fix.smem_len);
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+ return 0;
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+
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+ out:
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+ close(fd);
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+ return -1;
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+}
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+
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void setup_linux_system_parameters(struct x86_linux_param_header *real_mode)
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{
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/* Fill in information the BIOS would usually provide */
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@@ -111,6 +163,7 @@ void setup_linux_system_parameters(struc
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real_mode->orig_video_ega_bx = 0;
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real_mode->orig_video_isVGA = 1;
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real_mode->orig_video_points = 16;
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+ setup_linux_vesafb(real_mode);
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/* Fill in the memsize later */
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real_mode->ext_mem_k = 0;
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