LXR linux/drivers/gpu/drm/msm/disp/dpu1/dpu_hw

   1/* SPDX-License-Identifier: GPL-2.0-only */
   2/* Copyright (c) 2015-2018, The Linux Foundation. All rights reserved.
   3 */
   4
   5#ifndef _DPU_HW_DSPP_H
   6#define _DPU_HW_DSPP_H
   7
   8#include "dpu_hw_blk.h"
   9
  10struct dpu_hw_dspp;
  11
  12/**
  13 * struct dpu_hw_pcc_coeff - PCC coefficient structure for each color
  14 *                            component.
  15 * @r: red coefficient.
  16 * @g: green coefficient.
  17 * @b: blue coefficient.
  18 */
  19
  20struct dpu_hw_pcc_coeff {
  21        __u32 r;
  22        __u32 g;
  23        __u32 b;
  24};
  25
  26/**
  27 * struct dpu_hw_pcc - pcc feature structure
  28 * @r: red coefficients.
  29 * @g: green coefficients.
  30 * @b: blue coefficients.
  31 */
  32struct dpu_hw_pcc_cfg {
  33        struct dpu_hw_pcc_coeff r;
  34        struct dpu_hw_pcc_coeff g;
  35        struct dpu_hw_pcc_coeff b;
  36};
  37
  38/**
  39 * struct dpu_hw_dspp_ops - interface to the dspp hardware driver functions
  40 * Caller must call the init function to get the dspp context for each dspp
  41 * Assumption is these functions will be called after clocks are enabled
  42 */
  43struct dpu_hw_dspp_ops {
  44        /**
  45         * setup_pcc - setup dspp pcc
  46         * @ctx: Pointer to dspp context
  47         * @cfg: Pointer to configuration
  48         */
  49        void (*setup_pcc)(struct dpu_hw_dspp *ctx, struct dpu_hw_pcc_cfg *cfg);
  50
  51};
  52
  53/**
  54 * struct dpu_hw_dspp - dspp description
  55 * @base: Hardware block base structure
  56 * @hw: Block hardware details
  57 * @idx: DSPP index
  58 * @cap: Pointer to layer_cfg
  59 * @ops: Pointer to operations possible for this DSPP
  60 */
  61struct dpu_hw_dspp {
  62        struct dpu_hw_blk base;
  63        struct dpu_hw_blk_reg_map hw;
  64
  65        /* dspp */
  66        int idx;
  67        const struct dpu_dspp_cfg *cap;
  68
  69        /* Ops */
  70        struct dpu_hw_dspp_ops ops;
  71};
  72
  73/**
  74 * dpu_hw_dspp - convert base object dpu_hw_base to container
  75 * @hw: Pointer to base hardware block
  76 * return: Pointer to hardware block container
  77 */
  78static inline struct dpu_hw_dspp *to_dpu_hw_dspp(struct dpu_hw_blk *hw)
  79{
  80        return container_of(hw, struct dpu_hw_dspp, base);
  81}
  82
  83/**
  84 * dpu_hw_dspp_init - initializes the dspp hw driver object.
  85 * should be called once before accessing every dspp.
  86 * @idx:  DSPP index for which driver object is required
  87 * @addr: Mapped register io address of MDP
  88 * @Return: pointer to structure or ERR_PTR
  89 */
  90struct dpu_hw_dspp *dpu_hw_dspp_init(enum dpu_dspp idx,
  91        void __iomem *addr, const struct dpu_mdss_cfg *m);
  92
  93/**
  94 * dpu_hw_dspp_destroy(): Destroys DSPP driver context
  95 * @dspp: Pointer to DSPP driver context
  96 */
  97void dpu_hw_dspp_destroy(struct dpu_hw_dspp *dspp);
  98
  99#endif /*_DPU_HW_DSPP_H */
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