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libpayload: cbgfx: Allow rotation of the display

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Sometimes the display native orientation does not match the device
default orientation, so allow rotation of the framebuffer before
it is displayed on screen.

set_pixel now take coordinates in the rotated coordinate system,
and converts the coordinates before writing to the framebuffer.

Also, screen.size now matches the rotated system (_not_ the
framebuffer size).

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

Change-Id: If9316c0ce33c17057372ef5995a2c68de4f11f02
Signed-off-by: Nicolas Boichat <drinkcat@chromium.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/34732
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Julius Werner <jwerner@chromium.org>
Reviewed-by: Christian Walter <christian.walter@9elements.com>
This commit is contained in:
Nicolas Boichat
2019-08-06 08:23:54 +08:00
committed by Martin Roth
parent 87f265b210
commit 564720f2c8
2 changed files with 44 additions and 4 deletions
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9
payloads/libpayload/include/coreboot_tables.h
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@ -189,6 +189,14 @@ struct cb_forward {
u64 forward;
};
/* Panel orientation, matches drm_connector.h in the Linux kernel. */
enum cb_fb_orientation {
CB_FB_ORIENTATION_NORMAL = 0,
CB_FB_ORIENTATION_BOTTOM_UP = 1,
CB_FB_ORIENTATION_LEFT_UP = 2,
CB_FB_ORIENTATION_RIGHT_UP = 3,
};
struct cb_framebuffer {
u32 tag;
u32 size;
@ -206,6 +214,7 @@ struct cb_framebuffer {
u8 blue_mask_size;
u8 reserved_mask_pos;
u8 reserved_mask_size;
u8 orientation;
};
#define CB_GPIO_ACTIVE_LOW 0