mirror of
https://github.com/openwrt/openwrt.git
synced 2024-12-22 06:57:57 +00:00
87 lines
2.7 KiB
Diff
87 lines
2.7 KiB
Diff
From 495fd0373ad234c8547697e3a7de1f1724c8498d Mon Sep 17 00:00:00 2001
|
|
From: Dave Stevenson <dave.stevenson@raspberrypi.org>
|
|
Date: Tue, 9 Apr 2019 17:19:51 +0100
|
|
Subject: [PATCH] drm: vc4: Add support for H & V flips on each plane
|
|
for FKMS
|
|
|
|
They are near zero cost options for the HVS, therefore they
|
|
may as well be implemented, and it allows us to invert the
|
|
DSI display.
|
|
|
|
Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
|
|
---
|
|
drivers/gpu/drm/vc4/vc4_firmware_kms.c | 36 ++++++++++++++++++++++++++
|
|
1 file changed, 36 insertions(+)
|
|
|
|
--- a/drivers/gpu/drm/vc4/vc4_firmware_kms.c
|
|
+++ b/drivers/gpu/drm/vc4/vc4_firmware_kms.c
|
|
@@ -64,8 +64,21 @@ struct set_plane {
|
|
u8 padding;
|
|
|
|
u32 planes[4]; /* DMA address of each plane */
|
|
+
|
|
+ u32 transform;
|
|
};
|
|
|
|
+/* Values for the transform field */
|
|
+#define TRANSFORM_NO_ROTATE 0
|
|
+#define TRANSFORM_ROTATE_180 BIT(1)
|
|
+#define TRANSFORM_FLIP_HRIZ BIT(16)
|
|
+#define TRANSFORM_FLIP_VERT BIT(17)
|
|
+
|
|
+#define SUPPORTED_ROTATIONS (DRM_MODE_ROTATE_0 | \
|
|
+ DRM_MODE_ROTATE_180 | \
|
|
+ DRM_MODE_REFLECT_X | \
|
|
+ DRM_MODE_REFLECT_Y)
|
|
+
|
|
struct mailbox_set_plane {
|
|
struct rpi_firmware_property_tag_header tag;
|
|
struct set_plane plane;
|
|
@@ -277,6 +290,7 @@ static void vc4_plane_atomic_update(stru
|
|
struct vc4_crtc *vc4_crtc = to_vc4_crtc(state->crtc);
|
|
int num_planes = fb->format->num_planes;
|
|
struct drm_display_mode *mode = &state->crtc->mode;
|
|
+ unsigned int rotation = SUPPORTED_ROTATIONS;
|
|
|
|
mb->plane.vc_image_type = vc_fmt->vc_image;
|
|
mb->plane.width = fb->width;
|
|
@@ -297,6 +311,24 @@ static void vc4_plane_atomic_update(stru
|
|
mb->plane.is_vu = vc_fmt->is_vu;
|
|
mb->plane.planes[0] = bo->paddr + fb->offsets[0];
|
|
|
|
+ rotation = drm_rotation_simplify(state->rotation, rotation);
|
|
+
|
|
+ switch (rotation) {
|
|
+ default:
|
|
+ case DRM_MODE_ROTATE_0:
|
|
+ mb->plane.transform = TRANSFORM_NO_ROTATE;
|
|
+ break;
|
|
+ case DRM_MODE_ROTATE_180:
|
|
+ mb->plane.transform = TRANSFORM_ROTATE_180;
|
|
+ break;
|
|
+ case DRM_MODE_REFLECT_X:
|
|
+ mb->plane.transform = TRANSFORM_FLIP_HRIZ;
|
|
+ break;
|
|
+ case DRM_MODE_REFLECT_Y:
|
|
+ mb->plane.transform = TRANSFORM_FLIP_VERT;
|
|
+ break;
|
|
+ }
|
|
+
|
|
/* FIXME: If the dest rect goes off screen then clip the src rect so we
|
|
* don't have off-screen pixels.
|
|
*/
|
|
@@ -516,9 +548,13 @@ static struct drm_plane *vc4_fkms_plane_
|
|
formats, num_formats, modifiers,
|
|
type, NULL);
|
|
|
|
+ /* FIXME: Do we need to be checking return values from all these calls?
|
|
+ */
|
|
drm_plane_helper_add(plane, &vc4_plane_helper_funcs);
|
|
|
|
drm_plane_create_alpha_property(plane);
|
|
+ drm_plane_create_rotation_property(plane, DRM_MODE_ROTATE_0,
|
|
+ SUPPORTED_ROTATIONS);
|
|
|
|
/*
|
|
* Default frame buffer setup is with FB on -127, and raspistill etc
|