1 /* SPDX-License-Identifier: GPL-2.0-only */ 2 /* 3 * Copyright (c) 2022 Qualcomm Innovation Center, Inc. All rights reserved. 4 * Copyright (c) 2015-2018, The Linux Foundation. All rights reserved. 5 * Copyright (C) 2013 Red Hat 6 * Author: Rob Clark <robdclark@gmail.com> 7 */ 8 9 #ifndef __DPU_ENCODER_H__ 10 #define __DPU_ENCODER_H__ 11 12 #include <drm/drm_crtc.h> 13 #include "dpu_hw_mdss.h" 14 15 #define DPU_ENCODER_FRAME_EVENT_DONE BIT(0) 16 #define DPU_ENCODER_FRAME_EVENT_ERROR BIT(1) 17 #define DPU_ENCODER_FRAME_EVENT_PANEL_DEAD BIT(2) 18 #define DPU_ENCODER_FRAME_EVENT_IDLE BIT(3) 19 20 #define IDLE_TIMEOUT (66 - 16/2) 21 22 /** 23 * struct msm_display_info - defines display properties 24 * @intf_type: INTF_ type 25 * @num_of_h_tiles: Number of horizontal tiles in case of split interface 26 * @h_tile_instance: Controller instance used per tile. Number of elements is 27 * based on num_of_h_tiles 28 * @is_cmd_mode Boolean to indicate if the CMD mode is requested 29 * @is_te_using_watchdog_timer: Boolean to indicate watchdog TE is 30 * used instead of panel TE in cmd mode panels 31 */ 32 struct msm_display_info { 33 enum dpu_intf_type intf_type; 34 uint32_t num_of_h_tiles; 35 uint32_t h_tile_instance[MAX_H_TILES_PER_DISPLAY]; 36 bool is_cmd_mode; 37 bool is_te_using_watchdog_timer; 38 }; 39 40 /** 41 * dpu_encoder_assign_crtc - Link the encoder to the crtc it's assigned to 42 * @encoder: encoder pointer 43 * @crtc: crtc pointer 44 */ 45 void dpu_encoder_assign_crtc(struct drm_encoder *encoder, 46 struct drm_crtc *crtc); 47 48 /** 49 * dpu_encoder_toggle_vblank_for_crtc - Toggles vblank interrupts on or off if 50 * the encoder is assigned to the given crtc 51 * @encoder: encoder pointer 52 * @crtc: crtc pointer 53 * @enable: true if vblank should be enabled 54 */ 55 void dpu_encoder_toggle_vblank_for_crtc(struct drm_encoder *encoder, 56 struct drm_crtc *crtc, bool enable); 57 58 /** 59 * dpu_encoder_register_frame_event_callback - provide callback to encoder that 60 * will be called after the request is complete, or other events. 61 * @encoder: encoder pointer 62 * @cb: callback pointer, provide NULL to deregister 63 * @data: user data provided to callback 64 */ 65 void dpu_encoder_register_frame_event_callback(struct drm_encoder *encoder, 66 void (*cb)(void *, u32), void *data); 67 68 /** 69 * dpu_encoder_prepare_for_kickoff - schedule double buffer flip of the ctl 70 * path (i.e. ctl flush and start) at next appropriate time. 71 * Immediately: if no previous commit is outstanding. 72 * Delayed: Block until next trigger can be issued. 73 * @encoder: encoder pointer 74 */ 75 void dpu_encoder_prepare_for_kickoff(struct drm_encoder *encoder); 76 77 /** 78 * dpu_encoder_trigger_kickoff_pending - Clear the flush bits from previous 79 * kickoff and trigger the ctl prepare progress for command mode display. 80 * @encoder: encoder pointer 81 */ 82 void dpu_encoder_trigger_kickoff_pending(struct drm_encoder *encoder); 83 84 /** 85 * dpu_encoder_kickoff - trigger a double buffer flip of the ctl path 86 * (i.e. ctl flush and start) immediately. 87 * @encoder: encoder pointer 88 */ 89 void dpu_encoder_kickoff(struct drm_encoder *encoder); 90 91 /** 92 * dpu_encoder_wakeup_time - get the time of the next vsync 93 */ 94 int dpu_encoder_vsync_time(struct drm_encoder *drm_enc, ktime_t *wakeup_time); 95 96 int dpu_encoder_wait_for_commit_done(struct drm_encoder *drm_encoder); 97 98 int dpu_encoder_wait_for_tx_complete(struct drm_encoder *drm_encoder); 99 100 /* 101 * dpu_encoder_get_intf_mode - get interface mode of the given encoder 102 * @encoder: Pointer to drm encoder object 103 */ 104 enum dpu_intf_mode dpu_encoder_get_intf_mode(struct drm_encoder *encoder); 105 106 /** 107 * dpu_encoder_virt_runtime_resume - pm runtime resume the encoder configs 108 * @encoder: encoder pointer 109 */ 110 void dpu_encoder_virt_runtime_resume(struct drm_encoder *encoder); 111 112 /** 113 * dpu_encoder_init - initialize virtual encoder object 114 * @dev: Pointer to drm device structure 115 * @drm_enc_mode: corresponding DRM_MODE_ENCODER_* constant 116 * @disp_info: Pointer to display information structure 117 * Returns: Pointer to newly created drm encoder 118 */ 119 struct drm_encoder *dpu_encoder_init(struct drm_device *dev, 120 int drm_enc_mode, 121 struct msm_display_info *disp_info); 122 123 /** 124 * dpu_encoder_set_idle_timeout - set the idle timeout for video 125 * and command mode encoders. 126 * @drm_enc: Pointer to previously created drm encoder structure 127 * @idle_timeout: idle timeout duration in milliseconds 128 */ 129 void dpu_encoder_set_idle_timeout(struct drm_encoder *drm_enc, 130 u32 idle_timeout); 131 /** 132 * dpu_encoder_get_linecount - get interface line count for the encoder. 133 * @drm_enc: Pointer to previously created drm encoder structure 134 */ 135 int dpu_encoder_get_linecount(struct drm_encoder *drm_enc); 136 137 /** 138 * dpu_encoder_get_vsync_count - get vsync count for the encoder. 139 * @drm_enc: Pointer to previously created drm encoder structure 140 */ 141 int dpu_encoder_get_vsync_count(struct drm_encoder *drm_enc); 142 143 /** 144 * dpu_encoder_is_widebus_enabled - return bool value if widebus is enabled 145 * @drm_enc: Pointer to previously created drm encoder structure 146 */ 147 bool dpu_encoder_is_widebus_enabled(const struct drm_encoder *drm_enc); 148 149 /** 150 * dpu_encoder_is_dsc_enabled - indicate whether dsc is enabled 151 * for the encoder. 152 * @drm_enc: Pointer to previously created drm encoder structure 153 */ 154 bool dpu_encoder_is_dsc_enabled(const struct drm_encoder *drm_enc); 155 156 /** 157 * dpu_encoder_get_crc_values_cnt - get number of physical encoders contained 158 * in virtual encoder that can collect CRC values 159 * @drm_enc: Pointer to previously created drm encoder structure 160 * Returns: Number of physical encoders for given drm encoder 161 */ 162 int dpu_encoder_get_crc_values_cnt(const struct drm_encoder *drm_enc); 163 164 /** 165 * dpu_encoder_setup_misr - enable misr calculations 166 * @drm_enc: Pointer to previously created drm encoder structure 167 */ 168 void dpu_encoder_setup_misr(const struct drm_encoder *drm_encoder); 169 170 /** 171 * dpu_encoder_get_crc - get the crc value from interface blocks 172 * @drm_enc: Pointer to previously created drm encoder structure 173 * Returns: 0 on success, error otherwise 174 */ 175 int dpu_encoder_get_crc(const struct drm_encoder *drm_enc, u32 *crcs, int pos); 176 177 /** 178 * dpu_encoder_use_dsc_merge - returns true if the encoder uses DSC merge topology. 179 * @drm_enc: Pointer to previously created drm encoder structure 180 */ 181 bool dpu_encoder_use_dsc_merge(struct drm_encoder *drm_enc); 182 183 /** 184 * dpu_encoder_prepare_wb_job - prepare writeback job for the encoder. 185 * @drm_enc: Pointer to previously created drm encoder structure 186 * @job: Pointer to the current drm writeback job 187 */ 188 void dpu_encoder_prepare_wb_job(struct drm_encoder *drm_enc, 189 struct drm_writeback_job *job); 190 191 /** 192 * dpu_encoder_cleanup_wb_job - cleanup writeback job for the encoder. 193 * @drm_enc: Pointer to previously created drm encoder structure 194 * @job: Pointer to the current drm writeback job 195 */ 196 void dpu_encoder_cleanup_wb_job(struct drm_encoder *drm_enc, 197 struct drm_writeback_job *job); 198 199 /** 200 * dpu_encoder_is_valid_for_commit - check if encode has valid parameters for commit. 201 * @drm_enc: Pointer to drm encoder structure 202 */ 203 bool dpu_encoder_is_valid_for_commit(struct drm_encoder *drm_enc); 204 205 #endif /* __DPU_ENCODER_H__ */ 206