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Diffstat (limited to 'drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_dc.h')
-rw-r--r--drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_dc.h213
1 files changed, 213 insertions, 0 deletions
diff --git a/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_dc.h b/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_dc.h
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index 000000000000..7bc96af3397a
--- /dev/null
+++ b/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_dc.h
@@ -0,0 +1,213 @@
+/*
+ * Copyright (C) 2014 Traphandler
+ * Copyright (C) 2014 Free Electrons
+ * Copyright (C) 2014 Atmel
+ *
+ * Author: Jean-Jacques Hiblot <jjhiblot@traphandler.com>
+ * Author: Boris BREZILLON <boris.brezillon@free-electrons.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published by
+ * the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef DRM_ATMEL_HLCDC_H
+#define DRM_ATMEL_HLCDC_H
+
+#include <linux/clk.h>
+#include <linux/irqdomain.h>
+#include <linux/pwm.h>
+
+#include <drm/drm_crtc.h>
+#include <drm/drm_crtc_helper.h>
+#include <drm/drm_fb_cma_helper.h>
+#include <drm/drm_gem_cma_helper.h>
+#include <drm/drm_panel.h>
+#include <drm/drmP.h>
+
+#include "atmel_hlcdc_layer.h"
+
+#define ATMEL_HLCDC_MAX_LAYERS 5
+
+/**
+ * Atmel HLCDC Display Controller description structure.
+ *
+ * This structure describe the HLCDC IP capabilities and depends on the
+ * HLCDC IP version (or Atmel SoC family).
+ *
+ * @min_width: minimum width supported by the Display Controller
+ * @min_height: minimum height supported by the Display Controller
+ * @max_width: maximum width supported by the Display Controller
+ * @max_height: maximum height supported by the Display Controller
+ * @layers: a layer description table describing available layers
+ * @nlayers: layer description table size
+ */
+struct atmel_hlcdc_dc_desc {
+ int min_width;
+ int min_height;
+ int max_width;
+ int max_height;
+ const struct atmel_hlcdc_layer_desc *layers;
+ int nlayers;
+};
+
+/**
+ * Atmel HLCDC Plane properties.
+ *
+ * This structure stores plane property definitions.
+ *
+ * @alpha: alpha blending (or transparency) property
+ * @rotation: rotation property
+ */
+struct atmel_hlcdc_plane_properties {
+ struct drm_property *alpha;
+ struct drm_property *rotation;
+};
+
+/**
+ * Atmel HLCDC Plane.
+ *
+ * @base: base DRM plane structure
+ * @layer: HLCDC layer structure
+ * @properties: pointer to the property definitions structure
+ * @rotation: current rotation status
+ */
+struct atmel_hlcdc_plane {
+ struct drm_plane base;
+ struct atmel_hlcdc_layer layer;
+ struct atmel_hlcdc_plane_properties *properties;
+ unsigned int rotation;
+};
+
+static inline struct atmel_hlcdc_plane *
+drm_plane_to_atmel_hlcdc_plane(struct drm_plane *p)
+{
+ return container_of(p, struct atmel_hlcdc_plane, base);
+}
+
+static inline struct atmel_hlcdc_plane *
+atmel_hlcdc_layer_to_plane(struct atmel_hlcdc_layer *l)
+{
+ return container_of(l, struct atmel_hlcdc_plane, layer);
+}
+
+/**
+ * Atmel HLCDC Plane update request structure.
+ *
+ * @crtc_x: x position of the plane relative to the CRTC
+ * @crtc_y: y position of the plane relative to the CRTC
+ * @crtc_w: visible width of the plane
+ * @crtc_h: visible height of the plane
+ * @src_x: x buffer position
+ * @src_y: y buffer position
+ * @src_w: buffer width
+ * @src_h: buffer height
+ * @fb: framebuffer object object
+ * @bpp: bytes per pixel deduced from pixel_format
+ * @offsets: offsets to apply to the GEM buffers
+ * @xstride: value to add to the pixel pointer between each line
+ * @pstride: value to add to the pixel pointer between each pixel
+ * @nplanes: number of planes (deduced from pixel_format)
+ */
+struct atmel_hlcdc_plane_update_req {
+ int crtc_x;
+ int crtc_y;
+ unsigned int crtc_w;
+ unsigned int crtc_h;
+ uint32_t src_x;
+ uint32_t src_y;
+ uint32_t src_w;
+ uint32_t src_h;
+ struct drm_framebuffer *fb;
+
+ /* These fields are private and should not be touched */
+ int bpp[ATMEL_HLCDC_MAX_PLANES];
+ unsigned int offsets[ATMEL_HLCDC_MAX_PLANES];
+ int xstride[ATMEL_HLCDC_MAX_PLANES];
+ int pstride[ATMEL_HLCDC_MAX_PLANES];
+ int nplanes;
+};
+
+/**
+ * Atmel HLCDC Planes.
+ *
+ * This structure stores the instantiated HLCDC Planes and can be accessed by
+ * the HLCDC Display Controller or the HLCDC CRTC.
+ *
+ * @primary: primary plane
+ * @cursor: hardware cursor plane
+ * @overlays: overlay plane table
+ * @noverlays: number of overlay planes
+ */
+struct atmel_hlcdc_planes {
+ struct atmel_hlcdc_plane *primary;
+ struct atmel_hlcdc_plane *cursor;
+ struct atmel_hlcdc_plane **overlays;
+ int noverlays;
+};
+
+/**
+ * Atmel HLCDC Display Controller.
+ *
+ * @desc: HLCDC Display Controller description
+ * @hlcdc: pointer to the atmel_hlcdc structure provided by the MFD device
+ * @fbdev: framebuffer device attached to the Display Controller
+ * @crtc: CRTC provided by the display controller
+ * @planes: instantiated planes
+ * @layers: active HLCDC layer
+ * @wq: display controller workqueue
+ */
+struct atmel_hlcdc_dc {
+ const struct atmel_hlcdc_dc_desc *desc;
+ struct atmel_hlcdc *hlcdc;
+ struct drm_fbdev_cma *fbdev;
+ struct drm_crtc *crtc;
+ struct atmel_hlcdc_planes *planes;
+ struct atmel_hlcdc_layer *layers[ATMEL_HLCDC_MAX_LAYERS];
+ struct workqueue_struct *wq;
+};
+
+extern struct atmel_hlcdc_formats atmel_hlcdc_plane_rgb_formats;
+extern struct atmel_hlcdc_formats atmel_hlcdc_plane_rgb_and_yuv_formats;
+
+int atmel_hlcdc_dc_mode_valid(struct atmel_hlcdc_dc *dc,
+ struct drm_display_mode *mode);
+
+struct atmel_hlcdc_planes *
+atmel_hlcdc_create_planes(struct drm_device *dev);
+
+int atmel_hlcdc_plane_prepare_update_req(struct drm_plane *p,
+ struct atmel_hlcdc_plane_update_req *req,
+ const struct drm_display_mode *mode);
+
+int atmel_hlcdc_plane_apply_update_req(struct drm_plane *p,
+ struct atmel_hlcdc_plane_update_req *req);
+
+int atmel_hlcdc_plane_update_with_mode(struct drm_plane *p,
+ struct drm_crtc *crtc,
+ struct drm_framebuffer *fb,
+ int crtc_x, int crtc_y,
+ unsigned int crtc_w,
+ unsigned int crtc_h,
+ uint32_t src_x, uint32_t src_y,
+ uint32_t src_w, uint32_t src_h,
+ const struct drm_display_mode *mode);
+
+void atmel_hlcdc_crtc_irq(struct drm_crtc *c);
+
+void atmel_hlcdc_crtc_cancel_page_flip(struct drm_crtc *crtc,
+ struct drm_file *file);
+
+int atmel_hlcdc_crtc_create(struct drm_device *dev);
+
+int atmel_hlcdc_create_outputs(struct drm_device *dev);
+
+#endif /* DRM_ATMEL_HLCDC_H */