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_LM_H
   6#define _DPU_HW_LM_H
   7
   8#include "dpu_hw_mdss.h"
   9#include "dpu_hw_util.h"
  10#include "dpu_hw_blk.h"
  11
  12struct dpu_hw_mixer;
  13
  14struct dpu_hw_mixer_cfg {
  15        u32 out_width;
  16        u32 out_height;
  17        bool right_mixer;
  18        int flags;
  19};
  20
  21struct dpu_hw_color3_cfg {
  22        u8 keep_fg[DPU_STAGE_MAX];
  23};
  24
  25/**
  26 *
  27 * struct dpu_hw_lm_ops : Interface to the mixer Hw driver functions
  28 *  Assumption is these functions will be called after clocks are enabled
  29 */
  30struct dpu_hw_lm_ops {
  31        /*
  32         * Sets up mixer output width and height
  33         * and border color if enabled
  34         */
  35        void (*setup_mixer_out)(struct dpu_hw_mixer *ctx,
  36                struct dpu_hw_mixer_cfg *cfg);
  37
  38        /*
  39         * Alpha blending configuration
  40         * for the specified stage
  41         */
  42        void (*setup_blend_config)(struct dpu_hw_mixer *ctx, uint32_t stage,
  43                uint32_t fg_alpha, uint32_t bg_alpha, uint32_t blend_op);
  44
  45        /*
  46         * Alpha color component selection from either fg or bg
  47         */
  48        void (*setup_alpha_out)(struct dpu_hw_mixer *ctx, uint32_t mixer_op);
  49
  50        /**
  51         * setup_border_color : enable/disable border color
  52         */
  53        void (*setup_border_color)(struct dpu_hw_mixer *ctx,
  54                struct dpu_mdss_color *color,
  55                u8 border_en);
  56};
  57
  58struct dpu_hw_mixer {
  59        struct dpu_hw_blk base;
  60        struct dpu_hw_blk_reg_map hw;
  61
  62        /* lm */
  63        enum dpu_lm  idx;
  64        const struct dpu_lm_cfg   *cap;
  65        const struct dpu_mdp_cfg  *mdp;
  66        const struct dpu_ctl_cfg  *ctl;
  67
  68        /* ops */
  69        struct dpu_hw_lm_ops ops;
  70
  71        /* store mixer info specific to display */
  72        struct dpu_hw_mixer_cfg cfg;
  73};
  74
  75/**
  76 * to_dpu_hw_mixer - convert base object dpu_hw_base to container
  77 * @hw: Pointer to base hardware block
  78 * return: Pointer to hardware block container
  79 */
  80static inline struct dpu_hw_mixer *to_dpu_hw_mixer(struct dpu_hw_blk *hw)
  81{
  82        return container_of(hw, struct dpu_hw_mixer, base);
  83}
  84
  85/**
  86 * dpu_hw_lm_init(): Initializes the mixer hw driver object.
  87 * should be called once before accessing every mixer.
  88 * @idx:  mixer index for which driver object is required
  89 * @addr: mapped register io address of MDP
  90 * @m :   pointer to mdss catalog data
  91 */
  92struct dpu_hw_mixer *dpu_hw_lm_init(enum dpu_lm idx,
  93                void __iomem *addr,
  94                const struct dpu_mdss_cfg *m);
  95
  96/**
  97 * dpu_hw_lm_destroy(): Destroys layer mixer driver context
  98 * @lm:   Pointer to LM driver context
  99 */
 100void dpu_hw_lm_destroy(struct dpu_hw_mixer *lm);
 101
 102#endif /*_DPU_HW_LM_H */
 103