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-rw-r--r--kernel/drivers/gpu/drm/sti/sti_layer.h131
1 files changed, 131 insertions, 0 deletions
diff --git a/kernel/drivers/gpu/drm/sti/sti_layer.h b/kernel/drivers/gpu/drm/sti/sti_layer.h
new file mode 100644
index 000000000..ceff497f5
--- /dev/null
+++ b/kernel/drivers/gpu/drm/sti/sti_layer.h
@@ -0,0 +1,131 @@
+/*
+ * Copyright (C) STMicroelectronics SA 2014
+ * Authors: Benjamin Gaignard <benjamin.gaignard@st.com>
+ * Fabien Dessenne <fabien.dessenne@st.com>
+ * for STMicroelectronics.
+ * License terms: GNU General Public License (GPL), version 2
+ */
+
+#ifndef _STI_LAYER_H_
+#define _STI_LAYER_H_
+
+#include <drm/drmP.h>
+
+#define to_sti_layer(x) container_of(x, struct sti_layer, plane)
+
+#define STI_LAYER_TYPE_SHIFT 8
+#define STI_LAYER_TYPE_MASK (~((1<<STI_LAYER_TYPE_SHIFT)-1))
+
+struct sti_layer;
+
+enum sti_layer_type {
+ STI_GDP = 1 << STI_LAYER_TYPE_SHIFT,
+ STI_VID = 2 << STI_LAYER_TYPE_SHIFT,
+ STI_CUR = 3 << STI_LAYER_TYPE_SHIFT,
+ STI_BCK = 4 << STI_LAYER_TYPE_SHIFT,
+ STI_VDP = 5 << STI_LAYER_TYPE_SHIFT
+};
+
+enum sti_layer_id_of_type {
+ STI_ID_0 = 0,
+ STI_ID_1 = 1,
+ STI_ID_2 = 2,
+ STI_ID_3 = 3
+};
+
+enum sti_layer_desc {
+ STI_GDP_0 = STI_GDP | STI_ID_0,
+ STI_GDP_1 = STI_GDP | STI_ID_1,
+ STI_GDP_2 = STI_GDP | STI_ID_2,
+ STI_GDP_3 = STI_GDP | STI_ID_3,
+ STI_VID_0 = STI_VID | STI_ID_0,
+ STI_VID_1 = STI_VID | STI_ID_1,
+ STI_HQVDP_0 = STI_VDP | STI_ID_0,
+ STI_CURSOR = STI_CUR,
+ STI_BACK = STI_BCK
+};
+
+/**
+ * STI layer functions structure
+ *
+ * @get_formats: get layer supported formats
+ * @get_nb_formats: get number of format supported
+ * @init: initialize the layer
+ * @prepare: prepare layer before rendering
+ * @commit: set layer for rendering
+ * @disable: disable layer
+ */
+struct sti_layer_funcs {
+ const uint32_t* (*get_formats)(struct sti_layer *layer);
+ unsigned int (*get_nb_formats)(struct sti_layer *layer);
+ void (*init)(struct sti_layer *layer);
+ int (*prepare)(struct sti_layer *layer, bool first_prepare);
+ int (*commit)(struct sti_layer *layer);
+ int (*disable)(struct sti_layer *layer);
+};
+
+/**
+ * STI layer structure
+ *
+ * @plane: drm plane it is bound to (if any)
+ * @fb: drm fb it is bound to
+ * @crtc: crtc it is bound to
+ * @mode: display mode
+ * @desc: layer type & id
+ * @device: driver device
+ * @regs: layer registers
+ * @ops: layer functions
+ * @zorder: layer z-order
+ * @mixer_id: id of the mixer used to display the layer
+ * @enabled: to know if the layer is active or not
+ * @src_x src_y: coordinates of the input (fb) area
+ * @src_w src_h: size of the input (fb) area
+ * @dst_x dst_y: coordinates of the output (crtc) area
+ * @dst_w dst_h: size of the output (crtc) area
+ * @format: format
+ * @pitches: pitch of 'planes' (eg: Y, U, V)
+ * @offsets: offset of 'planes'
+ * @vaddr: virtual address of the input buffer
+ * @paddr: physical address of the input buffer
+ */
+struct sti_layer {
+ struct drm_plane plane;
+ struct drm_framebuffer *fb;
+ struct drm_crtc *crtc;
+ struct drm_display_mode *mode;
+ enum sti_layer_desc desc;
+ struct device *dev;
+ void __iomem *regs;
+ const struct sti_layer_funcs *ops;
+ int zorder;
+ int mixer_id;
+ bool enabled;
+ int src_x, src_y;
+ int src_w, src_h;
+ int dst_x, dst_y;
+ int dst_w, dst_h;
+ uint32_t format;
+ unsigned int pitches[4];
+ unsigned int offsets[4];
+ void *vaddr;
+ dma_addr_t paddr;
+};
+
+struct sti_layer *sti_layer_create(struct device *dev, int desc,
+ void __iomem *baseaddr);
+int sti_layer_prepare(struct sti_layer *layer,
+ struct drm_crtc *crtc,
+ struct drm_framebuffer *fb,
+ struct drm_display_mode *mode,
+ int mixer_id,
+ int dest_x, int dest_y,
+ int dest_w, int dest_h,
+ int src_x, int src_y,
+ int src_w, int src_h);
+int sti_layer_commit(struct sti_layer *layer);
+int sti_layer_disable(struct sti_layer *layer);
+const uint32_t *sti_layer_get_formats(struct sti_layer *layer);
+unsigned int sti_layer_get_nb_formats(struct sti_layer *layer);
+const char *sti_layer_to_str(struct sti_layer *layer);
+
+#endif