/* * Copyright (c) 2015-2019, The Linux Foundation. All rights reserved. * Copyright (C) 2013 Red Hat * Author: Rob Clark * * This program is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 as published by * the Free Software Foundation. * * This program is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for * more details. * * You should have received a copy of the GNU General Public License along with * this program. If not, see . */ #ifndef __SDE_ENCODER_H__ #define __SDE_ENCODER_H__ #include #include "msm_prop.h" #include "sde_hw_mdss.h" #include "sde_kms.h" #define SDE_ENCODER_FRAME_EVENT_DONE BIT(0) #define SDE_ENCODER_FRAME_EVENT_ERROR BIT(1) #define SDE_ENCODER_FRAME_EVENT_PANEL_DEAD BIT(2) #define SDE_ENCODER_FRAME_EVENT_SIGNAL_RELEASE_FENCE BIT(3) #define SDE_ENCODER_FRAME_EVENT_SIGNAL_RETIRE_FENCE BIT(4) #define IDLE_POWERCOLLAPSE_DURATION (66 - 16/2) #define IDLE_POWERCOLLAPSE_IN_EARLY_WAKEUP (200 - 16/2) /** * Encoder functions and data types * @intfs: Interfaces this encoder is using, INTF_MODE_NONE if unused * @wbs: Writebacks this encoder is using, INTF_MODE_NONE if unused * @needs_cdm: Encoder requests a CDM based on pixel format conversion needs * @display_num_of_h_tiles: Number of horizontal tiles in case of split * interface * @is_primary: set to true if the display is primary display * @topology: Topology of the display */ struct sde_encoder_hw_resources { enum sde_intf_mode intfs[INTF_MAX]; enum sde_intf_mode wbs[WB_MAX]; bool needs_cdm; u32 display_num_of_h_tiles; bool is_primary; struct msm_display_topology topology; }; /** * sde_encoder_kickoff_params - info encoder requires at kickoff * @is_primary: set to true if the display is primary display * @affected_displays: bitmask, bit set means the ROI of the commit lies within * the bounds of the physical display at the bit index * @recovery_events_enabled: indicates status of client for recoovery events * @frame_trigger_mode: indicates frame trigger mode */ struct sde_encoder_kickoff_params { u32 is_primary; unsigned long affected_displays; bool recovery_events_enabled; enum frame_trigger_mode_type frame_trigger_mode; }; /** * sde_encoder_get_hw_resources - Populate table of required hardware resources * @encoder: encoder pointer * @hw_res: resource table to populate with encoder required resources * @conn_state: report hw reqs based on this proposed connector state */ void sde_encoder_get_hw_resources(struct drm_encoder *encoder, struct sde_encoder_hw_resources *hw_res, struct drm_connector_state *conn_state); /** * sde_encoder_register_vblank_callback - provide callback to encoder that * will be called on the next vblank. * @encoder: encoder pointer * @cb: callback pointer, provide NULL to deregister and disable IRQs * @data: user data provided to callback */ void sde_encoder_register_vblank_callback(struct drm_encoder *encoder, void (*cb)(void *), void *data); /** * sde_encoder_register_frame_event_callback - provide callback to encoder that * will be called after the request is complete, or other events. * @encoder: encoder pointer * @cb: callback pointer, provide NULL to deregister * @crtc: pointer to drm_crtc object interested in frame events */ void sde_encoder_register_frame_event_callback(struct drm_encoder *encoder, void (*cb)(void *, u32), struct drm_crtc *crtc); /** * sde_encoder_get_rsc_client - gets the rsc client state for primary * for primary display. * @encoder: encoder pointer */ struct sde_rsc_client *sde_encoder_get_rsc_client(struct drm_encoder *encoder); /** * sde_encoder_poll_line_counts - poll encoder line counts for start of frame * @encoder: encoder pointer * @Returns: zero on success */ int sde_encoder_poll_line_counts(struct drm_encoder *encoder); /** * sde_encoder_prepare_for_kickoff - schedule double buffer flip of the ctl * path (i.e. ctl flush and start) at next appropriate time. * Immediately: if no previous commit is outstanding. * Delayed: Block until next trigger can be issued. * @encoder: encoder pointer * @params: kickoff time parameters * @Returns: Zero on success, last detected error otherwise */ int sde_encoder_prepare_for_kickoff(struct drm_encoder *encoder, struct sde_encoder_kickoff_params *params); /** * sde_encoder_trigger_kickoff_pending - Clear the flush bits from previous * kickoff and trigger the ctl prepare progress for command mode display. * @encoder: encoder pointer */ void sde_encoder_trigger_kickoff_pending(struct drm_encoder *encoder); /** * sde_encoder_kickoff - trigger a double buffer flip of the ctl path * (i.e. ctl flush and start) immediately. * @encoder: encoder pointer * @is_error: whether the current commit needs to be aborted and replaced * with a 'safe' commit */ void sde_encoder_kickoff(struct drm_encoder *encoder, bool is_error); /** * sde_encoder_wait_for_event - Waits for encoder events * @encoder: encoder pointer * @event: event to wait for * MSM_ENC_COMMIT_DONE - Wait for hardware to have flushed the current pending * frames to hardware at a vblank or ctl_start * Encoders will map this differently depending on the * panel type. * vid mode -> vsync_irq * cmd mode -> ctl_start * MSM_ENC_TX_COMPLETE - Wait for the hardware to transfer all the pixels to * the panel. Encoders will map this differently * depending on the panel type. * vid mode -> vsync_irq * cmd mode -> pp_done * Returns: 0 on success, -EWOULDBLOCK if already signaled, error otherwise */ int sde_encoder_wait_for_event(struct drm_encoder *drm_encoder, enum msm_event_wait event); /** * sde_encoder_idle_request - request for idle request to avoid 4 vsync cycle * to turn off the clocks. * @encoder: encoder pointer * Returns: 0 on success, errorcode otherwise */ int sde_encoder_idle_request(struct drm_encoder *drm_enc); /* * sde_encoder_get_fps - get interface frame rate of the given encoder * @encoder: Pointer to drm encoder object */ u32 sde_encoder_get_fps(struct drm_encoder *encoder); /* * sde_encoder_get_intf_mode - get interface mode of the given encoder * @encoder: Pointer to drm encoder object */ enum sde_intf_mode sde_encoder_get_intf_mode(struct drm_encoder *encoder); /** * sde_encoder_control_te - control enabling/disabling VSYNC_IN_EN * @encoder: encoder pointer * @enable: boolean to indicate enable/disable */ void sde_encoder_control_te(struct drm_encoder *encoder, bool enable); /** * sde_encoder_virt_restore - restore the encoder configs * @encoder: encoder pointer */ void sde_encoder_virt_restore(struct drm_encoder *encoder); /** * sde_encoder_is_dsc_merge - check if encoder is in DSC merge mode * @drm_enc: Pointer to drm encoder object * @Return: true if encoder is in DSC merge mode */ bool sde_encoder_is_dsc_merge(struct drm_encoder *drm_enc); /** * sde_encoder_check_curr_mode - check if given mode is supported or not * @drm_enc: Pointer to drm encoder object * @mode: Mode to be checked * @Return: true if it is cmd mode */ bool sde_encoder_check_curr_mode(struct drm_encoder *drm_enc, u32 mode); /** * sde_encoder_init - initialize virtual encoder object * @dev: Pointer to drm device structure * @disp_info: Pointer to display information structure * Returns: Pointer to newly created drm encoder */ struct drm_encoder *sde_encoder_init( struct drm_device *dev, struct msm_display_info *disp_info); /** * sde_encoder_destroy - destroy previously initialized virtual encoder * @drm_enc: Pointer to previously created drm encoder structure */ void sde_encoder_destroy(struct drm_encoder *drm_enc); /** * sde_encoder_prepare_commit - prepare encoder at the very beginning of an * atomic commit, before any registers are written * @drm_enc: Pointer to previously created drm encoder structure */ void sde_encoder_prepare_commit(struct drm_encoder *drm_enc); /** * sde_encoder_update_caps_for_cont_splash - update encoder settings during * device bootup when cont_splash is enabled * @drm_enc: Pointer to drm encoder structure * @splash_display: Pointer to sde_splash_display corresponding to this encoder * @enable: boolean indicates enable or displae state of splash * @Return: true if successful in updating the encoder structure */ int sde_encoder_update_caps_for_cont_splash(struct drm_encoder *encoder, struct sde_splash_display *splash_display, bool enable); /** * sde_encoder_display_failure_notification - update sde encoder state for * esd timeout or other display failure notification. This event flows from * dsi, sde_connector to sde_encoder. * * This api must not be called from crtc_commit (display) thread because it * requests the flush work on same thread. It is called from esd check thread * based on current design. * * TODO: manage the event at sde_kms level for forward processing. * @drm_enc: Pointer to drm encoder structure * @skip_pre_kickoff: Caller can avoid pre_kickoff if it is triggering this * event only to switch the panel TE to watchdog mode. * @Return: true if successful in updating the encoder structure */ int sde_encoder_display_failure_notification(struct drm_encoder *enc, bool skip_pre_kickoff); /** * sde_encoder_recovery_events_enabled - checks if client has enabled * sw recovery mechanism for this connector * @drm_enc: Pointer to drm encoder structure * @Return: true if enabled */ bool sde_encoder_recovery_events_enabled(struct drm_encoder *encoder); /** * sde_encoder_recovery_events_handler - handler to enable/disable the * sw recovery for this connector * @drm_enc: Pointer to drm encoder structure */ void sde_encoder_recovery_events_handler(struct drm_encoder *encoder, bool val); /** * sde_encoder_in_clone_mode - checks if underlying phys encoder is in clone * mode or independent display mode. ref@ WB in Concurrent writeback mode. * @drm_enc: Pointer to drm encoder structure * @Return: true if successful in updating the encoder structure */ bool sde_encoder_in_clone_mode(struct drm_encoder *enc); /** * sde_encoder_is_primary_display - checks if underlying display is primary * display or not. * @drm_enc: Pointer to drm encoder structure * @Return: true if it is primary display. false if secondary display */ bool sde_encoder_is_primary_display(struct drm_encoder *enc); /** * sde_encoder_control_idle_pc - control enable/disable of idle power collapse * @drm_enc: Pointer to drm encoder structure * @enable: enable/disable flag */ void sde_encoder_control_idle_pc(struct drm_encoder *enc, bool enable); /** * sde_encoder_in_cont_splash - checks if display is in continuous splash * @drm_enc: Pointer to drm encoder structure * @Return: true if display in continuous splash */ int sde_encoder_in_cont_splash(struct drm_encoder *enc); /** * sde_encoder_uidle_enable - control enable/disable of uidle * @drm_enc: Pointer to drm encoder structure * @enable: enable/disable flag */ void sde_encoder_uidle_enable(struct drm_encoder *drm_enc, bool enable); #endif /* __SDE_ENCODER_H__ */