Store VESA parameters to Linux setup header so that vesafb driver in the kernel could work.
Signed-off-by: Bin Meng bmeng.cn@gmail.com Tested-by: Jian Luo jian.luo4@boschrexroth.de
---
arch/x86/include/asm/zimage.h | 1 + arch/x86/lib/zimage.c | 2 ++ drivers/pci/pci_rom.c | 28 ++++++++++++++++++++++++++++ include/vbe.h | 4 ++-- 4 files changed, 33 insertions(+), 2 deletions(-)
diff --git a/arch/x86/include/asm/zimage.h b/arch/x86/include/asm/zimage.h index 8e7dd42..bf351ed 100644 --- a/arch/x86/include/asm/zimage.h +++ b/arch/x86/include/asm/zimage.h @@ -38,5 +38,6 @@ struct boot_params *load_zimage(char *image, unsigned long kernel_size, ulong *load_addressp); int setup_zimage(struct boot_params *setup_base, char *cmd_line, int auto_boot, unsigned long initrd_addr, unsigned long initrd_size); +void setup_video(struct screen_info *screen_info);
#endif diff --git a/arch/x86/lib/zimage.c b/arch/x86/lib/zimage.c index c3f8a73..144471c 100644 --- a/arch/x86/lib/zimage.c +++ b/arch/x86/lib/zimage.c @@ -273,6 +273,8 @@ int setup_zimage(struct boot_params *setup_base, char *cmd_line, int auto_boot, build_command_line(cmd_line, auto_boot); }
+ setup_video(&setup_base->screen_info); + return 0; }
diff --git a/drivers/pci/pci_rom.c b/drivers/pci/pci_rom.c index 4a91033..a33efae 100644 --- a/drivers/pci/pci_rom.c +++ b/drivers/pci/pci_rom.c @@ -31,6 +31,7 @@ #include <pci_rom.h> #include <vbe.h> #include <video_fb.h> +#include <linux/screen_info.h>
#ifdef CONFIG_HAVE_ACPI_RESUME #include <asm/acpi.h> @@ -229,6 +230,33 @@ int vbe_get_video_info(struct graphic_device *gdev) #endif }
+void setup_video(struct screen_info *screen_info) +{ +#ifdef CONFIG_FRAMEBUFFER_SET_VESA_MODE + struct vesa_mode_info *vesa = &mode_info.vesa; + + screen_info->orig_video_isVGA = VIDEO_TYPE_VLFB; + + screen_info->lfb_width = vesa->x_resolution; + screen_info->lfb_height = vesa->y_resolution; + screen_info->lfb_depth = vesa->bits_per_pixel; + screen_info->lfb_linelength = vesa->bytes_per_scanline; + screen_info->lfb_base = vesa->phys_base_ptr; + screen_info->lfb_size = + ALIGN(screen_info->lfb_linelength * screen_info->lfb_height, + 65536); + screen_info->lfb_size >>= 16; + screen_info->red_size = vesa->red_mask_size; + screen_info->red_pos = vesa->red_mask_pos; + screen_info->green_size = vesa->green_mask_size; + screen_info->green_pos = vesa->green_mask_pos; + screen_info->blue_size = vesa->blue_mask_size; + screen_info->blue_pos = vesa->blue_mask_pos; + screen_info->rsvd_size = vesa->reserved_mask_size; + screen_info->rsvd_pos = vesa->reserved_mask_pos; +#endif +} + int pci_run_vga_bios(pci_dev_t dev, int (*int15_handler)(void), int exec_method) { struct pci_rom_header *rom, *ram; diff --git a/include/vbe.h b/include/vbe.h index c5deee9..1a86db8 100644 --- a/include/vbe.h +++ b/include/vbe.h @@ -12,7 +12,7 @@ #define _VBE_H
/* these structs are for input from and output to OF */ -struct __packed screen_info { +struct __packed vbe_screen_info { u8 display_type; /* 0=NONE, 1= analog, 2=digital */ u16 screen_width; u16 screen_height; @@ -23,7 +23,7 @@ struct __packed screen_info { u8 edid_block_zero[128]; };
-struct __packed screen_info_input { +struct __packed vbe_screen_info_input { u8 signature[4]; u16 size_reserved; u8 monitor_number;