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_INTF_H 6 #define _DPU_HW_INTF_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_intf; 14 15 /* intf timing settings */ 16 struct intf_timing_params { 17 u32 width; /* active width */ 18 u32 height; /* active height */ 19 u32 xres; /* Display panel width */ 20 u32 yres; /* Display panel height */ 21 22 u32 h_back_porch; 23 u32 h_front_porch; 24 u32 v_back_porch; 25 u32 v_front_porch; 26 u32 hsync_pulse_width; 27 u32 vsync_pulse_width; 28 u32 hsync_polarity; 29 u32 vsync_polarity; 30 u32 border_clr; 31 u32 underflow_clr; 32 u32 hsync_skew; 33 34 bool wide_bus_en; 35 }; 36 37 struct intf_prog_fetch { 38 u8 enable; 39 /* vsync counter for the front porch pixel line */ 40 u32 fetch_start; 41 }; 42 43 struct intf_status { 44 u8 is_en; /* interface timing engine is enabled or not */ 45 u8 is_prog_fetch_en; /* interface prog fetch counter is enabled or not */ 46 u32 frame_count; /* frame count since timing engine enabled */ 47 u32 line_count; /* current line count including blanking */ 48 }; 49 50 /** 51 * struct dpu_hw_intf_ops : Interface to the interface Hw driver functions 52 * Assumption is these functions will be called after clocks are enabled 53 * @ setup_timing_gen : programs the timing engine 54 * @ setup_prog_fetch : enables/disables the programmable fetch logic 55 * @ enable_timing: enable/disable timing engine 56 * @ get_status: returns if timing engine is enabled or not 57 * @ get_line_count: reads current vertical line counter 58 * @bind_pingpong_blk: enable/disable the connection with pingpong which will 59 * feed pixels to this interface 60 */ 61 struct dpu_hw_intf_ops { 62 void (*setup_timing_gen)(struct dpu_hw_intf *intf, 63 const struct intf_timing_params *p, 64 const struct dpu_format *fmt); 65 66 void (*setup_prg_fetch)(struct dpu_hw_intf *intf, 67 const struct intf_prog_fetch *fetch); 68 69 void (*enable_timing)(struct dpu_hw_intf *intf, 70 u8 enable); 71 72 void (*get_status)(struct dpu_hw_intf *intf, 73 struct intf_status *status); 74 75 u32 (*get_line_count)(struct dpu_hw_intf *intf); 76 77 void (*bind_pingpong_blk)(struct dpu_hw_intf *intf, 78 bool enable, 79 const enum dpu_pingpong pp); 80 }; 81 82 struct dpu_hw_intf { 83 struct dpu_hw_blk_reg_map hw; 84 85 /* intf */ 86 enum dpu_intf idx; 87 const struct dpu_intf_cfg *cap; 88 const struct dpu_mdss_cfg *mdss; 89 90 /* ops */ 91 struct dpu_hw_intf_ops ops; 92 }; 93 94 /** 95 * dpu_hw_intf_init(): Initializes the intf driver for the passed 96 * interface idx. 97 * @idx: interface index for which driver object is required 98 * @addr: mapped register io address of MDP 99 * @m : pointer to mdss catalog data 100 */ 101 struct dpu_hw_intf *dpu_hw_intf_init(enum dpu_intf idx, 102 void __iomem *addr, 103 const struct dpu_mdss_cfg *m); 104 105 /** 106 * dpu_hw_intf_destroy(): Destroys INTF driver context 107 * @intf: Pointer to INTF driver context 108 */ 109 void dpu_hw_intf_destroy(struct dpu_hw_intf *intf); 110 111 #endif /*_DPU_HW_INTF_H */ 112