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 #include "dpu_hw_blk.h"
12 
13 struct dpu_hw_mdp;
14 
15 /**
16  * struct traffic_shaper_cfg: traffic shaper configuration
17  * @en        : enable/disable traffic shaper
18  * @rd_client : true if read client; false if write client
19  * @client_id : client identifier
20  * @bpc_denom : denominator of byte per clk
21  * @bpc_numer : numerator of byte per clk
22  */
23 struct traffic_shaper_cfg {
24 	bool en;
25 	bool rd_client;
26 	u32 client_id;
27 	u32 bpc_denom;
28 	u64 bpc_numer;
29 };
30 
31 /**
32  * struct split_pipe_cfg - pipe configuration for dual display panels
33  * @en        : Enable/disable dual pipe confguration
34  * @mode      : Panel interface mode
35  * @intf      : Interface id for main control path
36  * @split_flush_en: Allows both the paths to be flushed when master path is
37  *              flushed
38  */
39 struct split_pipe_cfg {
40 	bool en;
41 	enum dpu_intf_mode mode;
42 	enum dpu_intf intf;
43 	bool split_flush_en;
44 };
45 
46 /**
47  * struct dpu_danger_safe_status: danger and safe status signals
48  * @mdp: top level status
49  * @sspp: source pipe status
50  */
51 struct dpu_danger_safe_status {
52 	u8 mdp;
53 	u8 sspp[SSPP_MAX];
54 };
55 
56 /**
57  * struct dpu_vsync_source_cfg - configure vsync source and configure the
58  *                                    watchdog timers if required.
59  * @pp_count: number of ping pongs active
60  * @frame_rate: Display frame rate
61  * @ppnumber: ping pong index array
62  * @vsync_source: vsync source selection
63  */
64 struct dpu_vsync_source_cfg {
65 	u32 pp_count;
66 	u32 frame_rate;
67 	u32 ppnumber[PINGPONG_MAX];
68 	u32 vsync_source;
69 };
70 
71 /**
72  * struct dpu_hw_mdp_ops - interface to the MDP TOP Hw driver functions
73  * Assumption is these functions will be called after clocks are enabled.
74  * @setup_split_pipe : Programs the pipe control registers
75  * @setup_pp_split : Programs the pp split control registers
76  * @setup_traffic_shaper : programs traffic shaper control
77  */
78 struct dpu_hw_mdp_ops {
79 	/** setup_split_pipe() : Regsiters are not double buffered, thisk
80 	 * function should be called before timing control enable
81 	 * @mdp  : mdp top context driver
82 	 * @cfg  : upper and lower part of pipe configuration
83 	 */
84 	void (*setup_split_pipe)(struct dpu_hw_mdp *mdp,
85 			struct split_pipe_cfg *p);
86 
87 	/**
88 	 * setup_traffic_shaper() : Setup traffic shaper control
89 	 * @mdp  : mdp top context driver
90 	 * @cfg  : traffic shaper configuration
91 	 */
92 	void (*setup_traffic_shaper)(struct dpu_hw_mdp *mdp,
93 			struct traffic_shaper_cfg *cfg);
94 
95 	/**
96 	 * setup_clk_force_ctrl - set clock force control
97 	 * @mdp: mdp top context driver
98 	 * @clk_ctrl: clock to be controlled
99 	 * @enable: force on enable
100 	 * @return: if the clock is forced-on by this function
101 	 */
102 	bool (*setup_clk_force_ctrl)(struct dpu_hw_mdp *mdp,
103 			enum dpu_clk_ctrl_type clk_ctrl, bool enable);
104 
105 	/**
106 	 * get_danger_status - get danger status
107 	 * @mdp: mdp top context driver
108 	 * @status: Pointer to danger safe status
109 	 */
110 	void (*get_danger_status)(struct dpu_hw_mdp *mdp,
111 			struct dpu_danger_safe_status *status);
112 
113 	/**
114 	 * setup_vsync_source - setup vsync source configuration details
115 	 * @mdp: mdp top context driver
116 	 * @cfg: vsync source selection configuration
117 	 */
118 	void (*setup_vsync_source)(struct dpu_hw_mdp *mdp,
119 				struct dpu_vsync_source_cfg *cfg);
120 
121 	/**
122 	 * get_safe_status - get safe status
123 	 * @mdp: mdp top context driver
124 	 * @status: Pointer to danger safe status
125 	 */
126 	void (*get_safe_status)(struct dpu_hw_mdp *mdp,
127 			struct dpu_danger_safe_status *status);
128 
129 	/**
130 	 * intf_audio_select - select the external interface for audio
131 	 * @mdp: mdp top context driver
132 	 */
133 	void (*intf_audio_select)(struct dpu_hw_mdp *mdp);
134 };
135 
136 struct dpu_hw_mdp {
137 	struct dpu_hw_blk base;
138 	struct dpu_hw_blk_reg_map hw;
139 
140 	/* top */
141 	enum dpu_mdp idx;
142 	const struct dpu_mdp_cfg *caps;
143 
144 	/* ops */
145 	struct dpu_hw_mdp_ops ops;
146 };
147 
148 /**
149  * dpu_hw_mdptop_init - initializes the top driver for the passed idx
150  * @idx:  Interface index for which driver object is required
151  * @addr: Mapped register io address of MDP
152  * @m:    Pointer to mdss catalog data
153  */
154 struct dpu_hw_mdp *dpu_hw_mdptop_init(enum dpu_mdp idx,
155 		void __iomem *addr,
156 		const struct dpu_mdss_cfg *m);
157 
158 void dpu_hw_mdp_destroy(struct dpu_hw_mdp *mdp);
159 
160 #endif /*_DPU_HW_TOP_H */
161