| /* |
| * Copyright (c) 2015-2018, The Linux Foundation. All rights reserved. |
| * Copyright (C) 2013 Red Hat |
| * Author: Rob Clark <robdclark@gmail.com> |
| * |
| * 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 <http://www.gnu.org/licenses/>. |
| */ |
| |
| #ifndef __DPU_ENCODER_H__ |
| #define __DPU_ENCODER_H__ |
| |
| #include <drm/drm_crtc.h> |
| #include "dpu_hw_mdss.h" |
| |
| #define DPU_ENCODER_FRAME_EVENT_DONE BIT(0) |
| #define DPU_ENCODER_FRAME_EVENT_ERROR BIT(1) |
| #define DPU_ENCODER_FRAME_EVENT_PANEL_DEAD BIT(2) |
| #define DPU_ENCODER_FRAME_EVENT_IDLE BIT(3) |
| |
| #define IDLE_TIMEOUT (66 - 16/2) |
| |
| /** |
| * Encoder functions and data types |
| * @intfs: Interfaces 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 |
| * @topology: Topology of the display |
| */ |
| struct dpu_encoder_hw_resources { |
| enum dpu_intf_mode intfs[INTF_MAX]; |
| bool needs_cdm; |
| u32 display_num_of_h_tiles; |
| }; |
| |
| /** |
| * dpu_encoder_kickoff_params - info encoder requires at kickoff |
| * @affected_displays: bitmask, bit set means the ROI of the commit lies within |
| * the bounds of the physical display at the bit index |
| */ |
| struct dpu_encoder_kickoff_params { |
| unsigned long affected_displays; |
| }; |
| |
| /** |
| * dpu_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 dpu_encoder_get_hw_resources(struct drm_encoder *encoder, |
| struct dpu_encoder_hw_resources *hw_res, |
| struct drm_connector_state *conn_state); |
| |
| /** |
| * dpu_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 dpu_encoder_register_vblank_callback(struct drm_encoder *encoder, |
| void (*cb)(void *), void *data); |
| |
| /** |
| * dpu_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 |
| * @data: user data provided to callback |
| */ |
| void dpu_encoder_register_frame_event_callback(struct drm_encoder *encoder, |
| void (*cb)(void *, u32), void *data); |
| |
| /** |
| * dpu_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 |
| */ |
| void dpu_encoder_prepare_for_kickoff(struct drm_encoder *encoder, |
| struct dpu_encoder_kickoff_params *params); |
| |
| /** |
| * dpu_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 dpu_encoder_trigger_kickoff_pending(struct drm_encoder *encoder); |
| |
| /** |
| * dpu_encoder_kickoff - trigger a double buffer flip of the ctl path |
| * (i.e. ctl flush and start) immediately. |
| * @encoder: encoder pointer |
| */ |
| void dpu_encoder_kickoff(struct drm_encoder *encoder); |
| |
| /** |
| * dpu_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 dpu_encoder_wait_for_event(struct drm_encoder *drm_encoder, |
| enum msm_event_wait event); |
| |
| /* |
| * dpu_encoder_get_intf_mode - get interface mode of the given encoder |
| * @encoder: Pointer to drm encoder object |
| */ |
| enum dpu_intf_mode dpu_encoder_get_intf_mode(struct drm_encoder *encoder); |
| |
| /** |
| * dpu_encoder_virt_restore - restore the encoder configs |
| * @encoder: encoder pointer |
| */ |
| void dpu_encoder_virt_restore(struct drm_encoder *encoder); |
| |
| /** |
| * dpu_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 *dpu_encoder_init( |
| struct drm_device *dev, |
| int drm_enc_mode); |
| |
| /** |
| * dpu_encoder_setup - setup dpu_encoder for the display probed |
| * @dev: Pointer to drm device structure |
| * @enc: Pointer to the drm_encoder |
| * @disp_info: Pointer to the display info |
| */ |
| int dpu_encoder_setup(struct drm_device *dev, struct drm_encoder *enc, |
| struct msm_display_info *disp_info); |
| |
| /** |
| * dpu_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 dpu_encoder_prepare_commit(struct drm_encoder *drm_enc); |
| |
| /** |
| * dpu_encoder_set_idle_timeout - set the idle timeout for video |
| * and command mode encoders. |
| * @drm_enc: Pointer to previously created drm encoder structure |
| * @idle_timeout: idle timeout duration in milliseconds |
| */ |
| void dpu_encoder_set_idle_timeout(struct drm_encoder *drm_enc, |
| u32 idle_timeout); |
| |
| #endif /* __DPU_ENCODER_H__ */ |
