139 lines
3.5 KiB
C
139 lines
3.5 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
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/* Copyright (c) 2015-2018, The Linux Foundation. All rights reserved.
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*/
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#ifndef _DPU_HW_PINGPONG_H
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#define _DPU_HW_PINGPONG_H
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#include "dpu_hw_catalog.h"
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#include "dpu_hw_mdss.h"
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#include "dpu_hw_util.h"
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#define DITHER_MATRIX_SZ 16
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struct dpu_hw_pingpong;
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/**
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* struct dpu_hw_dither_cfg - dither feature structure
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* @flags: for customizing operations
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* @temporal_en: temperal dither enable
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* @c0_bitdepth: c0 component bit depth
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* @c1_bitdepth: c1 component bit depth
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* @c2_bitdepth: c2 component bit depth
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* @c3_bitdepth: c2 component bit depth
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* @matrix: dither strength matrix
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*/
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struct dpu_hw_dither_cfg {
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u64 flags;
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u32 temporal_en;
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u32 c0_bitdepth;
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u32 c1_bitdepth;
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u32 c2_bitdepth;
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u32 c3_bitdepth;
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u32 matrix[DITHER_MATRIX_SZ];
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};
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/**
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*
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* struct dpu_hw_pingpong_ops : Interface to the pingpong Hw driver functions
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* Assumption is these functions will be called after clocks are enabled
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* @enable_tearcheck: program and enable tear check block
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* @disable_tearcheck: disable able tear check block
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* @setup_dither : function to program the dither hw block
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* @get_line_count: obtain current vertical line counter
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*/
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struct dpu_hw_pingpong_ops {
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/**
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* enables vysnc generation and sets up init value of
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* read pointer and programs the tear check cofiguration
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*/
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int (*enable_tearcheck)(struct dpu_hw_pingpong *pp,
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struct dpu_hw_tear_check *cfg);
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/**
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* disables tear check block
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*/
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int (*disable_tearcheck)(struct dpu_hw_pingpong *pp);
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/**
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* read, modify, write to either set or clear listening to external TE
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* @Return: 1 if TE was originally connected, 0 if not, or -ERROR
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*/
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int (*connect_external_te)(struct dpu_hw_pingpong *pp,
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bool enable_external_te);
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/**
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* Obtain current vertical line counter
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*/
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u32 (*get_line_count)(struct dpu_hw_pingpong *pp);
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/**
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* Disable autorefresh if enabled
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*/
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void (*disable_autorefresh)(struct dpu_hw_pingpong *pp, uint32_t encoder_id, u16 vdisplay);
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/**
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* Setup dither matix for pingpong block
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*/
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void (*setup_dither)(struct dpu_hw_pingpong *pp,
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struct dpu_hw_dither_cfg *cfg);
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/**
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* Enable DSC
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*/
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int (*enable_dsc)(struct dpu_hw_pingpong *pp);
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/**
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* Disable DSC
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*/
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void (*disable_dsc)(struct dpu_hw_pingpong *pp);
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/**
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* Setup DSC
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*/
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int (*setup_dsc)(struct dpu_hw_pingpong *pp);
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};
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struct dpu_hw_merge_3d;
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struct dpu_hw_pingpong {
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struct dpu_hw_blk base;
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struct dpu_hw_blk_reg_map hw;
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/* pingpong */
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enum dpu_pingpong idx;
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const struct dpu_pingpong_cfg *caps;
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struct dpu_hw_merge_3d *merge_3d;
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/* ops */
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struct dpu_hw_pingpong_ops ops;
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};
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/**
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* to_dpu_hw_pingpong - convert base object dpu_hw_base to container
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* @hw: Pointer to base hardware block
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* return: Pointer to hardware block container
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*/
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static inline struct dpu_hw_pingpong *to_dpu_hw_pingpong(struct dpu_hw_blk *hw)
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{
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return container_of(hw, struct dpu_hw_pingpong, base);
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}
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/**
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* dpu_hw_pingpong_init() - initializes the pingpong driver for the passed
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* pingpong catalog entry.
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* @cfg: Pingpong catalog entry for which driver object is required
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* @addr: Mapped register io address of MDP
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* Return: Error code or allocated dpu_hw_pingpong context
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*/
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struct dpu_hw_pingpong *dpu_hw_pingpong_init(const struct dpu_pingpong_cfg *cfg,
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void __iomem *addr);
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/**
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* dpu_hw_pingpong_destroy - destroys pingpong driver context
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* should be called to free the context
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* @pp: Pointer to PP driver context returned by dpu_hw_pingpong_init
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*/
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void dpu_hw_pingpong_destroy(struct dpu_hw_pingpong *pp);
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#endif /*_DPU_HW_PINGPONG_H */
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