diff options
Diffstat (limited to 'abs/extra/kexec-tools/kexec-vesafb.diff')
| -rw-r--r-- | abs/extra/kexec-tools/kexec-vesafb.diff | 78 |
1 files changed, 78 insertions, 0 deletions
diff --git a/abs/extra/kexec-tools/kexec-vesafb.diff b/abs/extra/kexec-tools/kexec-vesafb.diff new file mode 100644 index 0000000..ec16422 --- /dev/null +++ b/abs/extra/kexec-tools/kexec-vesafb.diff @@ -0,0 +1,78 @@ +Index: kexec-tools-1.101/kexec/arch/i386/x86-linux-setup.c +=================================================================== +--- kexec-tools-1.101.orig/kexec/arch/i386/x86-linux-setup.c 2006-03-03 10:51:31.000000000 +0100 ++++ kexec-tools-1.101/kexec/arch/i386/x86-linux-setup.c 2006-03-10 14:02:20.000000000 +0100 +@@ -24,6 +24,8 @@ + #include <sys/stat.h> + #include <sys/mman.h> + #include <fcntl.h> ++#include <sys/ioctl.h> ++#include <linux/fb.h> + #include <unistd.h> + #include <x86/x86-linux.h> + #include "../../kexec.h" +@@ -94,6 +96,56 @@ void setup_linux_bootloader_parameters( + cmdline_ptr[cmdline_len - 1] = '\0'; + } + ++int setup_linux_vesafb(struct x86_linux_param_header *real_mode) ++{ ++ struct fb_fix_screeninfo fix; ++ struct fb_var_screeninfo var; ++ int fd; ++ ++ fd = open("/dev/fb0", O_RDONLY); ++ if (-1 == fd) ++ return -1; ++ ++ if (-1 == ioctl(fd, FBIOGET_FSCREENINFO, &fix)) ++ goto out; ++ if (-1 == ioctl(fd, FBIOGET_VSCREENINFO, &var)) ++ goto out; ++ if (0 != strcmp(fix.id, "VESA VGA")) ++ goto out; ++ close(fd); ++ ++ real_mode->orig_video_isVGA = 0x23 /* VIDEO_TYPE_VLFB */; ++ real_mode->lfb_width = var.xres; ++ real_mode->lfb_height = var.yres; ++ real_mode->lfb_depth = var.bits_per_pixel; ++ real_mode->lfb_base = fix.smem_start; ++ real_mode->lfb_linelength = fix.line_length; ++ real_mode->vesapm_seg = 0; ++ ++ /* fixme: better get size from /proc/iomem */ ++ real_mode->lfb_size = (fix.smem_len + 65535) / 65536; ++ real_mode->pages = (fix.smem_len + 4095) / 4096; ++ ++ if (var.bits_per_pixel > 8) { ++ real_mode->red_pos = var.red.offset; ++ real_mode->red_size = var.red.length; ++ real_mode->green_pos = var.green.offset; ++ real_mode->green_size = var.green.length; ++ real_mode->blue_pos = var.blue.offset; ++ real_mode->blue_size = var.blue.length; ++ real_mode->rsvd_pos = var.transp.offset; ++ real_mode->rsvd_size = var.transp.length; ++ } ++ fprintf(stderr, "%s: %dx%dx%d @ %lx +%lx\n", __FUNCTION__, ++ var.xres, var.yres, var.bits_per_pixel, ++ fix.smem_start, fix.smem_len); ++ return 0; ++ ++ out: ++ close(fd); ++ return -1; ++} ++ + void setup_linux_system_parameters(struct x86_linux_param_header *real_mode) + { + /* Fill in information the BIOS would usually provide */ +@@ -111,6 +163,7 @@ void setup_linux_system_parameters(struc + real_mode->orig_video_ega_bx = 0; + real_mode->orig_video_isVGA = 1; + real_mode->orig_video_points = 16; ++ setup_linux_vesafb(real_mode); + + /* Fill in the memsize later */ + real_mode->ext_mem_k = 0; |