235 lines
8.2 KiB
C
235 lines
8.2 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
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/*
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* Copyright (c) 2022 Qualcomm Innovation Center, Inc. All rights reserved.
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* Copyright (c) 2015-2018, The Linux Foundation. All rights reserved.
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* Copyright (C) 2013 Red Hat
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* Author: Rob Clark <robdclark@gmail.com>
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*/
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#ifndef __DPU_ENCODER_H__
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#define __DPU_ENCODER_H__
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#include <drm/drm_crtc.h>
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#include "dpu_hw_mdss.h"
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#define DPU_ENCODER_FRAME_EVENT_DONE BIT(0)
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#define DPU_ENCODER_FRAME_EVENT_ERROR BIT(1)
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#define DPU_ENCODER_FRAME_EVENT_PANEL_DEAD BIT(2)
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#define DPU_ENCODER_FRAME_EVENT_IDLE BIT(3)
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#define IDLE_TIMEOUT (66 - 16/2)
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/**
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* struct msm_display_info - defines display properties
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* @intf_type: DRM_MODE_ENCODER_ type
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* @num_of_h_tiles: Number of horizontal tiles in case of split interface
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* @h_tile_instance: Controller instance used per tile. Number of elements is
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* based on num_of_h_tiles
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* @is_cmd_mode Boolean to indicate if the CMD mode is requested
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* @is_te_using_watchdog_timer: Boolean to indicate watchdog TE is
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* used instead of panel TE in cmd mode panels
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* @dsc: DSC configuration data for DSC-enabled displays
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*/
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struct msm_display_info {
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int intf_type;
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uint32_t num_of_h_tiles;
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uint32_t h_tile_instance[MAX_H_TILES_PER_DISPLAY];
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bool is_cmd_mode;
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bool is_te_using_watchdog_timer;
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struct drm_dsc_config *dsc;
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};
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/**
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* dpu_encoder_assign_crtc - Link the encoder to the crtc it's assigned to
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* @encoder: encoder pointer
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* @crtc: crtc pointer
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*/
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void dpu_encoder_assign_crtc(struct drm_encoder *encoder,
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struct drm_crtc *crtc);
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/**
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* dpu_encoder_toggle_vblank_for_crtc - Toggles vblank interrupts on or off if
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* the encoder is assigned to the given crtc
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* @encoder: encoder pointer
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* @crtc: crtc pointer
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* @enable: true if vblank should be enabled
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*/
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void dpu_encoder_toggle_vblank_for_crtc(struct drm_encoder *encoder,
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struct drm_crtc *crtc, bool enable);
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/**
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* dpu_encoder_register_frame_event_callback - provide callback to encoder that
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* will be called after the request is complete, or other events.
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* @encoder: encoder pointer
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* @cb: callback pointer, provide NULL to deregister
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* @data: user data provided to callback
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*/
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void dpu_encoder_register_frame_event_callback(struct drm_encoder *encoder,
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void (*cb)(void *, u32), void *data);
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/**
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* dpu_encoder_prepare_for_kickoff - schedule double buffer flip of the ctl
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* path (i.e. ctl flush and start) at next appropriate time.
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* Immediately: if no previous commit is outstanding.
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* Delayed: Block until next trigger can be issued.
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* @encoder: encoder pointer
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*/
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void dpu_encoder_prepare_for_kickoff(struct drm_encoder *encoder);
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/**
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* dpu_encoder_trigger_kickoff_pending - Clear the flush bits from previous
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* kickoff and trigger the ctl prepare progress for command mode display.
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* @encoder: encoder pointer
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*/
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void dpu_encoder_trigger_kickoff_pending(struct drm_encoder *encoder);
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/**
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* dpu_encoder_kickoff - trigger a double buffer flip of the ctl path
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* (i.e. ctl flush and start) immediately.
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* @encoder: encoder pointer
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*/
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void dpu_encoder_kickoff(struct drm_encoder *encoder);
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/**
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* dpu_encoder_wakeup_time - get the time of the next vsync
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*/
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int dpu_encoder_vsync_time(struct drm_encoder *drm_enc, ktime_t *wakeup_time);
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/**
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* dpu_encoder_wait_for_event - Waits for encoder events
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* @encoder: encoder pointer
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* @event: event to wait for
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* MSM_ENC_COMMIT_DONE - Wait for hardware to have flushed the current pending
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* frames to hardware at a vblank or ctl_start
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* Encoders will map this differently depending on the
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* panel type.
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* vid mode -> vsync_irq
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* cmd mode -> ctl_start
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* MSM_ENC_TX_COMPLETE - Wait for the hardware to transfer all the pixels to
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* the panel. Encoders will map this differently
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* depending on the panel type.
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* vid mode -> vsync_irq
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* cmd mode -> pp_done
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* Returns: 0 on success, -EWOULDBLOCK if already signaled, error otherwise
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*/
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int dpu_encoder_wait_for_event(struct drm_encoder *drm_encoder,
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enum msm_event_wait event);
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/*
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* dpu_encoder_get_intf_mode - get interface mode of the given encoder
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* @encoder: Pointer to drm encoder object
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*/
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enum dpu_intf_mode dpu_encoder_get_intf_mode(struct drm_encoder *encoder);
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/**
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* dpu_encoder_virt_runtime_resume - pm runtime resume the encoder configs
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* @encoder: encoder pointer
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*/
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void dpu_encoder_virt_runtime_resume(struct drm_encoder *encoder);
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/**
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* dpu_encoder_init - initialize virtual encoder object
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* @dev: Pointer to drm device structure
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* @disp_info: Pointer to display information structure
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* Returns: Pointer to newly created drm encoder
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*/
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struct drm_encoder *dpu_encoder_init(
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struct drm_device *dev,
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int drm_enc_mode);
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/**
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* dpu_encoder_setup - setup dpu_encoder for the display probed
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* @dev: Pointer to drm device structure
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* @enc: Pointer to the drm_encoder
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* @disp_info: Pointer to the display info
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*/
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int dpu_encoder_setup(struct drm_device *dev, struct drm_encoder *enc,
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struct msm_display_info *disp_info);
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/**
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* dpu_encoder_prepare_commit - prepare encoder at the very beginning of an
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* atomic commit, before any registers are written
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* @drm_enc: Pointer to previously created drm encoder structure
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*/
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void dpu_encoder_prepare_commit(struct drm_encoder *drm_enc);
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/**
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* dpu_encoder_set_idle_timeout - set the idle timeout for video
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* and command mode encoders.
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* @drm_enc: Pointer to previously created drm encoder structure
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* @idle_timeout: idle timeout duration in milliseconds
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*/
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void dpu_encoder_set_idle_timeout(struct drm_encoder *drm_enc,
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u32 idle_timeout);
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/**
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* dpu_encoder_get_linecount - get interface line count for the encoder.
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* @drm_enc: Pointer to previously created drm encoder structure
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*/
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int dpu_encoder_get_linecount(struct drm_encoder *drm_enc);
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/**
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* dpu_encoder_get_vsync_count - get vsync count for the encoder.
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* @drm_enc: Pointer to previously created drm encoder structure
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*/
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int dpu_encoder_get_vsync_count(struct drm_encoder *drm_enc);
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bool dpu_encoder_is_widebus_enabled(const struct drm_encoder *drm_enc);
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/**
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* dpu_encoder_is_dsc_enabled - indicate whether dsc is enabled
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* for the encoder.
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* @drm_enc: Pointer to previously created drm encoder structure
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*/
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bool dpu_encoder_is_dsc_enabled(const struct drm_encoder *drm_enc);
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/**
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* dpu_encoder_get_crc_values_cnt - get number of physical encoders contained
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* in virtual encoder that can collect CRC values
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* @drm_enc: Pointer to previously created drm encoder structure
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* Returns: Number of physical encoders for given drm encoder
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*/
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int dpu_encoder_get_crc_values_cnt(const struct drm_encoder *drm_enc);
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/**
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* dpu_encoder_setup_misr - enable misr calculations
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* @drm_enc: Pointer to previously created drm encoder structure
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*/
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void dpu_encoder_setup_misr(const struct drm_encoder *drm_encoder);
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/**
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* dpu_encoder_get_crc - get the crc value from interface blocks
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* @drm_enc: Pointer to previously created drm encoder structure
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* Returns: 0 on success, error otherwise
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*/
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int dpu_encoder_get_crc(const struct drm_encoder *drm_enc, u32 *crcs, int pos);
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/**
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* dpu_encoder_use_dsc_merge - returns true if the encoder uses DSC merge topology.
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* @drm_enc: Pointer to previously created drm encoder structure
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*/
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bool dpu_encoder_use_dsc_merge(struct drm_encoder *drm_enc);
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/**
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* dpu_encoder_prepare_wb_job - prepare writeback job for the encoder.
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* @drm_enc: Pointer to previously created drm encoder structure
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* @job: Pointer to the current drm writeback job
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*/
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void dpu_encoder_prepare_wb_job(struct drm_encoder *drm_enc,
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struct drm_writeback_job *job);
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/**
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* dpu_encoder_cleanup_wb_job - cleanup writeback job for the encoder.
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* @drm_enc: Pointer to previously created drm encoder structure
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* @job: Pointer to the current drm writeback job
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*/
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void dpu_encoder_cleanup_wb_job(struct drm_encoder *drm_enc,
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struct drm_writeback_job *job);
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/**
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* dpu_encoder_is_valid_for_commit - check if encode has valid parameters for commit.
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* @drm_enc: Pointer to drm encoder structure
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*/
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bool dpu_encoder_is_valid_for_commit(struct drm_encoder *drm_enc);
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#endif /* __DPU_ENCODER_H__ */
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