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drm: sti: add GDP layer
Generic Display Pipeline are one of the compositor input sub-devices. GDP are dedicated to graphic input like RGB plans. GDP is part of Compositor hardware block which will be introduce later. A sti_layer structure is used to abstract GDP calls from Compositor. Signed-off-by: Benjamin Gaignard <benjamin.gaignard@linaro.org> Reviewed-by: Rob Clark <robdclark@gmail.com>
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Benjamin Gaignard
@@ -1,3 +1,6 @@
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sticompositor-y := \
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sti_gdp.o
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stihdmi-y := sti_hdmi.o \
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sti_hdmi_tx3g0c55phy.o \
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sti_hdmi_tx3g4c28phy.o \
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@@ -7,4 +10,5 @@ obj-$(CONFIG_DRM_STI) = \
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sti_vtac.o \
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stihdmi.o \
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sti_hda.o \
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sti_tvout.o
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sti_tvout.o \
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sticompositor.o
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File diff suppressed because it is too large
Load Diff
@@ -0,0 +1,16 @@
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/*
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* Copyright (C) STMicroelectronics SA 2014
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* Authors: Benjamin Gaignard <benjamin.gaignard@st.com>
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* Fabien Dessenne <fabien.dessenne@st.com>
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* for STMicroelectronics.
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* License terms: GNU General Public License (GPL), version 2
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*/
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#ifndef _STI_GDP_H_
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#define _STI_GDP_H_
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#include <linux/types.h>
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struct sti_layer *sti_gdp_create(struct device *dev, int id);
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#endif
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@@ -0,0 +1,123 @@
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/*
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* Copyright (C) STMicroelectronics SA 2014
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* Authors: Benjamin Gaignard <benjamin.gaignard@st.com>
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* Fabien Dessenne <fabien.dessenne@st.com>
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* for STMicroelectronics.
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* License terms: GNU General Public License (GPL), version 2
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*/
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#ifndef _STI_LAYER_H_
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#define _STI_LAYER_H_
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#include <drm/drmP.h>
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#define to_sti_layer(x) container_of(x, struct sti_layer, plane)
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#define STI_LAYER_TYPE_SHIFT 8
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#define STI_LAYER_TYPE_MASK (~((1<<STI_LAYER_TYPE_SHIFT)-1))
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struct sti_layer;
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enum sti_layer_type {
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STI_GDP = 1 << STI_LAYER_TYPE_SHIFT,
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STI_VID = 2 << STI_LAYER_TYPE_SHIFT,
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STI_CUR = 3 << STI_LAYER_TYPE_SHIFT,
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STI_BCK = 4 << STI_LAYER_TYPE_SHIFT
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};
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enum sti_layer_id_of_type {
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STI_ID_0 = 0,
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STI_ID_1 = 1,
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STI_ID_2 = 2,
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STI_ID_3 = 3
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};
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enum sti_layer_desc {
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STI_GDP_0 = STI_GDP | STI_ID_0,
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STI_GDP_1 = STI_GDP | STI_ID_1,
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STI_GDP_2 = STI_GDP | STI_ID_2,
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STI_GDP_3 = STI_GDP | STI_ID_3,
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STI_VID_0 = STI_VID | STI_ID_0,
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STI_VID_1 = STI_VID | STI_ID_1,
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STI_CURSOR = STI_CUR,
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STI_BACK = STI_BCK
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};
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/**
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* STI layer functions structure
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*
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* @get_formats: get layer supported formats
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* @get_nb_formats: get number of format supported
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* @init: initialize the layer
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* @prepare: prepare layer before rendering
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* @commit: set layer for rendering
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* @disable: disable layer
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*/
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struct sti_layer_funcs {
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const uint32_t* (*get_formats)(struct sti_layer *layer);
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unsigned int (*get_nb_formats)(struct sti_layer *layer);
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void (*init)(struct sti_layer *layer);
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int (*prepare)(struct sti_layer *layer, bool first_prepare);
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int (*commit)(struct sti_layer *layer);
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int (*disable)(struct sti_layer *layer);
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};
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/**
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* STI layer structure
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*
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* @plane: drm plane it is bound to (if any)
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* @fb: drm fb it is bound to
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* @mode: display mode
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* @desc: layer type & id
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* @device: driver device
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* @regs: layer registers
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* @ops: layer functions
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* @zorder: layer z-order
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* @mixer_id: id of the mixer used to display the layer
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* @enabled: to know if the layer is active or not
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* @src_x src_y: coordinates of the input (fb) area
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* @src_w src_h: size of the input (fb) area
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* @dst_x dst_y: coordinates of the output (crtc) area
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* @dst_w dst_h: size of the output (crtc) area
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* @format: format
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* @pitches: pitch of 'planes' (eg: Y, U, V)
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* @offsets: offset of 'planes'
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* @paddr: physical address of the input buffer
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*/
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struct sti_layer {
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struct drm_plane plane;
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struct drm_framebuffer *fb;
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struct drm_display_mode *mode;
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enum sti_layer_desc desc;
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struct device *dev;
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void __iomem *regs;
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const struct sti_layer_funcs *ops;
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int zorder;
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int mixer_id;
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bool enabled;
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int src_x, src_y;
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int src_w, src_h;
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int dst_x, dst_y;
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int dst_w, dst_h;
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uint32_t format;
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unsigned int pitches[4];
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unsigned int offsets[4];
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dma_addr_t paddr;
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};
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struct sti_layer *sti_layer_create(struct device *dev, int desc,
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void __iomem *baseaddr);
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int sti_layer_prepare(struct sti_layer *layer, struct drm_framebuffer *fb,
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struct drm_display_mode *mode,
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int mixer_id,
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int dest_x, int dest_y,
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int dest_w, int dest_h,
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int src_x, int src_y,
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int src_w, int src_h);
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int sti_layer_commit(struct sti_layer *layer);
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int sti_layer_disable(struct sti_layer *layer);
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const uint32_t *sti_layer_get_formats(struct sti_layer *layer);
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unsigned int sti_layer_get_nb_formats(struct sti_layer *layer);
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const char *sti_layer_to_str(struct sti_layer *layer);
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#endif
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