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_TOP_H
6 #define _DPU_HW_TOP_H
7 
8 #include "dpu_hw_catalog.h"
9 #include "dpu_hw_mdss.h"
10 #include "dpu_hw_util.h"
11 
12 struct dpu_hw_mdp;
13 
14 /**
15  * struct traffic_shaper_cfg: traffic shaper configuration
16  * @en        : enable/disable traffic shaper
17  * @rd_client : true if read client; false if write client
18  * @client_id : client identifier
19  * @bpc_denom : denominator of byte per clk
20  * @bpc_numer : numerator of byte per clk
21  */
22 struct traffic_shaper_cfg {
23 	bool en;
24 	bool rd_client;
25 	u32 client_id;
26 	u32 bpc_denom;
27 	u64 bpc_numer;
28 };
29 
30 /**
31  * struct split_pipe_cfg - pipe configuration for dual display panels
32  * @en        : Enable/disable dual pipe configuration
33  * @mode      : Panel interface mode
34  * @intf      : Interface id for main control path
35  * @split_flush_en: Allows both the paths to be flushed when master path is
36  *              flushed
37  */
38 struct split_pipe_cfg {
39 	bool en;
40 	enum dpu_intf_mode mode;
41 	enum dpu_intf intf;
42 	bool split_flush_en;
43 };
44 
45 /**
46  * struct dpu_danger_safe_status: danger and safe status signals
47  * @mdp: top level status
48  * @sspp: source pipe status
49  */
50 struct dpu_danger_safe_status {
51 	u8 mdp;
52 	u8 sspp[SSPP_MAX];
53 };
54 
55 /**
56  * struct dpu_vsync_source_cfg - configure vsync source and configure the
57  *                                    watchdog timers if required.
58  * @pp_count: number of ping pongs active
59  * @frame_rate: Display frame rate
60  * @ppnumber: ping pong index array
61  * @vsync_source: vsync source selection
62  */
63 struct dpu_vsync_source_cfg {
64 	u32 pp_count;
65 	u32 frame_rate;
66 	u32 ppnumber[PINGPONG_MAX];
67 	u32 vsync_source;
68 };
69 
70 /**
71  * struct dpu_hw_mdp_ops - interface to the MDP TOP Hw driver functions
72  * Assumption is these functions will be called after clocks are enabled.
73  * @setup_split_pipe : Programs the pipe control registers
74  * @setup_pp_split : Programs the pp split control registers
75  * @setup_traffic_shaper : programs traffic shaper control
76  */
77 struct dpu_hw_mdp_ops {
78 	/** setup_split_pipe() : Registers are not double buffered, thisk
79 	 * function should be called before timing control enable
80 	 * @mdp  : mdp top context driver
81 	 * @cfg  : upper and lower part of pipe configuration
82 	 */
83 	void (*setup_split_pipe)(struct dpu_hw_mdp *mdp,
84 			struct split_pipe_cfg *p);
85 
86 	/**
87 	 * setup_traffic_shaper() : Setup traffic shaper control
88 	 * @mdp  : mdp top context driver
89 	 * @cfg  : traffic shaper configuration
90 	 */
91 	void (*setup_traffic_shaper)(struct dpu_hw_mdp *mdp,
92 			struct traffic_shaper_cfg *cfg);
93 
94 	/**
95 	 * setup_clk_force_ctrl - set clock force control
96 	 * @mdp: mdp top context driver
97 	 * @clk_ctrl: clock to be controlled
98 	 * @enable: force on enable
99 	 * @return: if the clock is forced-on by this function
100 	 */
101 	bool (*setup_clk_force_ctrl)(struct dpu_hw_mdp *mdp,
102 			enum dpu_clk_ctrl_type clk_ctrl, bool enable);
103 
104 	/**
105 	 * get_danger_status - get danger status
106 	 * @mdp: mdp top context driver
107 	 * @status: Pointer to danger safe status
108 	 */
109 	void (*get_danger_status)(struct dpu_hw_mdp *mdp,
110 			struct dpu_danger_safe_status *status);
111 
112 	/**
113 	 * setup_vsync_source - setup vsync source configuration details
114 	 * @mdp: mdp top context driver
115 	 * @cfg: vsync source selection configuration
116 	 */
117 	void (*setup_vsync_source)(struct dpu_hw_mdp *mdp,
118 				struct dpu_vsync_source_cfg *cfg);
119 
120 	/**
121 	 * get_safe_status - get safe status
122 	 * @mdp: mdp top context driver
123 	 * @status: Pointer to danger safe status
124 	 */
125 	void (*get_safe_status)(struct dpu_hw_mdp *mdp,
126 			struct dpu_danger_safe_status *status);
127 
128 	/**
129 	 * intf_audio_select - select the external interface for audio
130 	 * @mdp: mdp top context driver
131 	 */
132 	void (*intf_audio_select)(struct dpu_hw_mdp *mdp);
133 };
134 
135 struct dpu_hw_mdp {
136 	struct dpu_hw_blk base;
137 	struct dpu_hw_blk_reg_map hw;
138 
139 	/* top */
140 	enum dpu_mdp idx;
141 	const struct dpu_mdp_cfg *caps;
142 
143 	/* ops */
144 	struct dpu_hw_mdp_ops ops;
145 };
146 
147 /**
148  * dpu_hw_mdptop_init - initializes the top driver for the passed idx
149  * @idx:  Interface index for which driver object is required
150  * @addr: Mapped register io address of MDP
151  * @m:    Pointer to mdss catalog data
152  */
153 struct dpu_hw_mdp *dpu_hw_mdptop_init(enum dpu_mdp idx,
154 		void __iomem *addr,
155 		const struct dpu_mdss_cfg *m);
156 
157 void dpu_hw_mdp_destroy(struct dpu_hw_mdp *mdp);
158 
159 #endif /*_DPU_HW_TOP_H */
160