When booting as a coreboot payload, the framebuffer details are passed from coreboot via configuration tables. We save these information into vesa_mode_info structure for future use.
Signed-off-by: Bin Meng bmeng.cn@gmail.com ---
drivers/pci/pci_rom.c | 2 +- drivers/video/coreboot_fb.c | 24 ++++++++++++++++++++++++ include/vbe.h | 2 ++ 3 files changed, 27 insertions(+), 1 deletion(-)
diff --git a/drivers/pci/pci_rom.c b/drivers/pci/pci_rom.c index 26db3ca..b9a3990 100644 --- a/drivers/pci/pci_rom.c +++ b/drivers/pci/pci_rom.c @@ -187,7 +187,7 @@ int pci_rom_load(struct pci_rom_header *rom_header, return 0; }
-static struct vbe_mode_info mode_info; +struct vbe_mode_info mode_info;
int vbe_get_video_info(struct graphic_device *gdev) { diff --git a/drivers/video/coreboot_fb.c b/drivers/video/coreboot_fb.c index 56c35c1..4790ef1 100644 --- a/drivers/video/coreboot_fb.c +++ b/drivers/video/coreboot_fb.c @@ -9,6 +9,7 @@ #include <common.h> #include <asm/arch/tables.h> #include <asm/arch/sysinfo.h> +#include <vbe.h> #include <video_fb.h> #include "videomodes.h"
@@ -17,6 +18,26 @@ */ GraphicDevice ctfb;
+static void save_vesa_mode(void) +{ + struct vesa_mode_info *vesa = &mode_info.vesa; + struct cb_framebuffer *fb = lib_sysinfo.framebuffer; + + vesa->x_resolution = fb->x_resolution; + vesa->y_resolution = fb->y_resolution; + vesa->bits_per_pixel = fb->bits_per_pixel; + vesa->bytes_per_scanline = fb->bytes_per_line; + vesa->phys_base_ptr = fb->physical_address; + vesa->red_mask_size = fb->red_mask_size; + vesa->red_mask_pos = fb->red_mask_pos; + vesa->green_mask_size = fb->green_mask_size; + vesa->green_mask_pos = fb->green_mask_pos; + vesa->blue_mask_size = fb->blue_mask_size; + vesa->blue_mask_pos = fb->blue_mask_pos; + vesa->reserved_mask_size = fb->reserved_mask_size; + vesa->reserved_mask_pos = fb->reserved_mask_pos; +} + static int parse_coreboot_table_fb(GraphicDevice *gdev) { struct cb_framebuffer *fb = lib_sysinfo.framebuffer; @@ -81,5 +102,8 @@ void *video_hw_init(void) memset((void *)gdev->pciBase, 0, gdev->winSizeX * gdev->winSizeY * gdev->gdfBytesPP);
+ /* Initialize vesa_mode_info structure */ + save_vesa_mode(); + return (void *)gdev; } diff --git a/include/vbe.h b/include/vbe.h index 1a86db8..164ccae 100644 --- a/include/vbe.h +++ b/include/vbe.h @@ -102,6 +102,8 @@ struct vbe_ddc_info { #define VESA_SET_MODE 0x4f02 #define VESA_GET_CUR_MODE 0x4f03
+extern struct vbe_mode_info mode_info; + struct graphic_device; int vbe_get_video_info(struct graphic_device *gdev);