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 35 struct intf_prog_fetch { 36 u8 enable; 37 /* vsync counter for the front porch pixel line */ 38 u32 fetch_start; 39 }; 40 41 struct intf_status { 42 u8 is_en; /* interface timing engine is enabled or not */ 43 u32 frame_count; /* frame count since timing engine enabled */ 44 u32 line_count; /* current line count including blanking */ 45 }; 46 47 /** 48 * struct dpu_hw_intf_ops : Interface to the interface Hw driver functions 49 * Assumption is these functions will be called after clocks are enabled 50 * @ setup_timing_gen : programs the timing engine 51 * @ setup_prog_fetch : enables/disables the programmable fetch logic 52 * @ enable_timing: enable/disable timing engine 53 * @ get_status: returns if timing engine is enabled or not 54 * @ get_line_count: reads current vertical line counter 55 */ 56 struct dpu_hw_intf_ops { 57 void (*setup_timing_gen)(struct dpu_hw_intf *intf, 58 const struct intf_timing_params *p, 59 const struct dpu_format *fmt); 60 61 void (*setup_prg_fetch)(struct dpu_hw_intf *intf, 62 const struct intf_prog_fetch *fetch); 63 64 void (*enable_timing)(struct dpu_hw_intf *intf, 65 u8 enable); 66 67 void (*get_status)(struct dpu_hw_intf *intf, 68 struct intf_status *status); 69 70 u32 (*get_line_count)(struct dpu_hw_intf *intf); 71 }; 72 73 struct dpu_hw_intf { 74 struct dpu_hw_blk base; 75 struct dpu_hw_blk_reg_map hw; 76 77 /* intf */ 78 enum dpu_intf idx; 79 const struct dpu_intf_cfg *cap; 80 const struct dpu_mdss_cfg *mdss; 81 82 /* ops */ 83 struct dpu_hw_intf_ops ops; 84 }; 85 86 /** 87 * dpu_hw_intf_init(): Initializes the intf driver for the passed 88 * interface idx. 89 * @idx: interface index for which driver object is required 90 * @addr: mapped register io address of MDP 91 * @m : pointer to mdss catalog data 92 */ 93 struct dpu_hw_intf *dpu_hw_intf_init(enum dpu_intf idx, 94 void __iomem *addr, 95 struct dpu_mdss_cfg *m); 96 97 /** 98 * dpu_hw_intf_destroy(): Destroys INTF driver context 99 * @intf: Pointer to INTF driver context 100 */ 101 void dpu_hw_intf_destroy(struct dpu_hw_intf *intf); 102 103 #endif /*_DPU_HW_INTF_H */ 104