1 /* SPDX-License-Identifier: GPL-2.0-only */ 2 /* 3 * Copyright (c) 2015-2021, The Linux Foundation. All rights reserved. 4 */ 5 6 #ifndef _DPU_HW_LM_H 7 #define _DPU_HW_LM_H 8 9 #include "dpu_hw_mdss.h" 10 #include "dpu_hw_util.h" 11 12 struct dpu_hw_mixer; 13 14 struct dpu_hw_mixer_cfg { 15 u32 out_width; 16 u32 out_height; 17 bool right_mixer; 18 int flags; 19 }; 20 21 struct 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 */ 30 struct 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 /** 58 * setup_misr: Enable/disable MISR 59 */ 60 void (*setup_misr)(struct dpu_hw_mixer *ctx, bool enable, u32 frame_count); 61 62 /** 63 * collect_misr: Read MISR signature 64 */ 65 int (*collect_misr)(struct dpu_hw_mixer *ctx, u32 *misr_value); 66 }; 67 68 struct dpu_hw_mixer { 69 struct dpu_hw_blk base; 70 struct dpu_hw_blk_reg_map hw; 71 72 /* lm */ 73 enum dpu_lm idx; 74 const struct dpu_lm_cfg *cap; 75 const struct dpu_mdp_cfg *mdp; 76 const struct dpu_ctl_cfg *ctl; 77 78 /* ops */ 79 struct dpu_hw_lm_ops ops; 80 81 /* store mixer info specific to display */ 82 struct dpu_hw_mixer_cfg cfg; 83 }; 84 85 /** 86 * to_dpu_hw_mixer - convert base object dpu_hw_base to container 87 * @hw: Pointer to base hardware block 88 * return: Pointer to hardware block container 89 */ 90 static inline struct dpu_hw_mixer *to_dpu_hw_mixer(struct dpu_hw_blk *hw) 91 { 92 return container_of(hw, struct dpu_hw_mixer, base); 93 } 94 95 /** 96 * dpu_hw_lm_init(): Initializes the mixer hw driver object. 97 * should be called once before accessing every mixer. 98 * @idx: mixer index for which driver object is required 99 * @addr: mapped register io address of MDP 100 * @m : pointer to mdss catalog data 101 */ 102 struct dpu_hw_mixer *dpu_hw_lm_init(enum dpu_lm idx, 103 void __iomem *addr, 104 const struct dpu_mdss_cfg *m); 105 106 /** 107 * dpu_hw_lm_destroy(): Destroys layer mixer driver context 108 * @lm: Pointer to LM driver context 109 */ 110 void dpu_hw_lm_destroy(struct dpu_hw_mixer *lm); 111 112 #endif /*_DPU_HW_LM_H */ 113