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 
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 struct 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  */
80 static 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  */
92 struct dpu_hw_mixer *dpu_hw_lm_init(enum dpu_lm idx,
93 		void __iomem *addr,
94 		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  */
100 void dpu_hw_lm_destroy(struct dpu_hw_mixer *lm);
101 
102 #endif /*_DPU_HW_LM_H */
103