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/*
* 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
};
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_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
* @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'
* @paddr: physical address of the input buffer
*/
struct sti_layer {
struct drm_plane plane;
struct drm_framebuffer *fb;
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];
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_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
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