lib/edid: Add suport for display rotation

Sometimes the display native orientation does not match the device
default orientation. We add a parameter to be passed to libpayload,
which can then do the rotation.

BUG=b:132049716
TEST=Boot krane, see that FW screen is orientation properly.

Change-Id: I5e1d94b973a3f615b73eebe0ca1202ba03731844
Signed-off-by: Nicolas Boichat <drinkcat@chromium.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/34731
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Julius Werner <jwerner@chromium.org>

src/commonlib/include/commonlib/coreboot_tables.h

@@ -283,6 +283,18 @@ struct lb_forward {
  * fields described above. It may, however, only implement a subset
  * of the possible color formats.
  */
+
+/*
+ * Framebuffer orientation, matches drm_connector.h drm_panel_orientation in the
+ * Linux kernel.
+ */
+enum lb_fb_orientation {
+	LB_FB_ORIENTATION_NORMAL = 0,
+	LB_FB_ORIENTATION_BOTTOM_UP = 1,
+	LB_FB_ORIENTATION_LEFT_UP = 2,
+	LB_FB_ORIENTATION_RIGHT_UP = 3,
+};
+
 struct lb_framebuffer {
 	uint32_t tag;
 	uint32_t size;
@@ -300,6 +312,7 @@ struct lb_framebuffer {
 	uint8_t blue_mask_size;
 	uint8_t reserved_mask_pos;
 	uint8_t reserved_mask_size;
+	uint8_t orientation;
 };
 
 

src/include/edid.h

@@ -17,6 +17,7 @@
 #define EDID_H
 
 #include <stdint.h>
+#include "commonlib/coreboot_tables.h"
 
 enum edid_modes {
 	EDID_MODE_640x480_60Hz,
@@ -107,6 +108,7 @@ int decode_edid(unsigned char *edid, int size, struct edid *out);
 void edid_set_framebuffer_bits_per_pixel(struct edid *edid, int fb_bpp,
 					 int row_byte_alignment);
 void set_vbe_mode_info_valid(const struct edid *edid, uintptr_t fb_addr);
+void set_vbe_framebuffer_orientation(enum lb_fb_orientation orientation);
 int set_display_mode(struct edid *edid, enum edid_modes mode);
 
 #endif /* EDID_H */

src/lib/edid_fill_fb.c

@@ -81,6 +81,11 @@ void set_vbe_mode_info_valid(const struct edid *edid, uintptr_t fb_addr)
 	fb_valid = 1;
 }
 
+void set_vbe_framebuffer_orientation(enum lb_fb_orientation orientation)
+{
+	edid_fb.orientation = orientation;
+}
+
 int fill_lb_framebuffer(struct lb_framebuffer *framebuffer)
 {
 	if (!fb_valid)