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/* SPDX-License-Identifier: GPL-2.0-only */
/* Copyright (c) 2015-2018, The Linux Foundation. All rights reserved.
* Copyright (c) 2022 Qualcomm Innovation Center, Inc. All rights reserved.
*/
#ifndef _DPU_HW_CTL_H
#define _DPU_HW_CTL_H
#include "dpu_hw_mdss.h"
#include "dpu_hw_util.h"
#include "dpu_hw_catalog.h"
#include "dpu_hw_sspp.h"
/**
* dpu_ctl_mode_sel: Interface mode selection
* DPU_CTL_MODE_SEL_VID: Video mode interface
* DPU_CTL_MODE_SEL_CMD: Command mode interface
*/
enum dpu_ctl_mode_sel {
DPU_CTL_MODE_SEL_VID = 0,
DPU_CTL_MODE_SEL_CMD
};
struct dpu_hw_ctl;
/**
* struct dpu_hw_stage_cfg - blending stage cfg
* @stage : SSPP_ID at each stage
* @multirect_index: index of the rectangle of SSPP.
*/
struct dpu_hw_stage_cfg {
enum dpu_sspp stage[DPU_STAGE_MAX][PIPES_PER_STAGE];
enum dpu_sspp_multirect_index multirect_index
[DPU_STAGE_MAX][PIPES_PER_STAGE];
};
/**
* struct dpu_hw_intf_cfg :Describes how the DPU writes data to output interface
* @intf : Interface id
* @mode_3d: 3d mux configuration
* @merge_3d: 3d merge block used
* @intf_mode_sel: Interface mode, cmd / vid
* @cdm: CDM block used
* @stream_sel: Stream selection for multi-stream interfaces
* @dsc: DSC BIT masks used
*/
struct dpu_hw_intf_cfg {
enum dpu_intf intf;
enum dpu_wb wb;
enum dpu_3d_blend_mode mode_3d;
enum dpu_merge_3d merge_3d;
enum dpu_ctl_mode_sel intf_mode_sel;
enum dpu_cdm cdm;
int stream_sel;
unsigned int dsc;
};
/**
* struct dpu_hw_ctl_ops - Interface to the wb Hw driver functions
* Assumption is these functions will be called after clocks are enabled
*/
struct dpu_hw_ctl_ops {
/**
* kickoff hw operation for Sw controlled interfaces
* DSI cmd mode and WB interface are SW controlled
* @ctx : ctl path ctx pointer
*/
void (*trigger_start)(struct dpu_hw_ctl *ctx);
/**
* check if the ctl is started
* @ctx : ctl path ctx pointer
* @Return: true if started, false if stopped
*/
bool (*is_started)(struct dpu_hw_ctl *ctx);
/**
* kickoff prepare is in progress hw operation for sw
* controlled interfaces: DSI cmd mode and WB interface
* are SW controlled
* @ctx : ctl path ctx pointer
*/
void (*trigger_pending)(struct dpu_hw_ctl *ctx);
/**
* Clear the value of the cached pending_flush_mask
* No effect on hardware
* @ctx : ctl path ctx pointer
*/
void (*clear_pending_flush)(struct dpu_hw_ctl *ctx);
/**
* Query the value of the cached pending_flush_mask
* No effect on hardware
* @ctx : ctl path ctx pointer
*/
u32 (*get_pending_flush)(struct dpu_hw_ctl *ctx);
/**
* OR in the given flushbits to the cached pending_flush_mask
* No effect on hardware
* @ctx : ctl path ctx pointer
* @flushbits : module flushmask
*/
void (*update_pending_flush)(struct dpu_hw_ctl *ctx,
u32 flushbits);
/**
* OR in the given flushbits to the cached pending_(wb_)flush_mask
* No effect on hardware
* @ctx : ctl path ctx pointer
* @blk : writeback block index
*/
void (*update_pending_flush_wb)(struct dpu_hw_ctl *ctx,
enum dpu_wb blk);
/**
* OR in the given flushbits to the cached pending_(intf_)flush_mask
* No effect on hardware
* @ctx : ctl path ctx pointer
* @blk : interface block index
*/
void (*update_pending_flush_intf)(struct dpu_hw_ctl *ctx,
enum dpu_intf blk);
/**
* OR in the given flushbits to the cached pending_(merge_3d_)flush_mask
* No effect on hardware
* @ctx : ctl path ctx pointer
* @blk : interface block index
*/
void (*update_pending_flush_merge_3d)(struct dpu_hw_ctl *ctx,
enum dpu_merge_3d blk);
/**
* OR in the given flushbits to the cached pending_flush_mask
* No effect on hardware
* @ctx : ctl path ctx pointer
* @blk : SSPP block index
*/
void (*update_pending_flush_sspp)(struct dpu_hw_ctl *ctx,
enum dpu_sspp blk);
/**
* OR in the given flushbits to the cached pending_flush_mask
* No effect on hardware
* @ctx : ctl path ctx pointer
* @blk : LM block index
*/
void (*update_pending_flush_mixer)(struct dpu_hw_ctl *ctx,
enum dpu_lm blk);
/**
* OR in the given flushbits to the cached pending_flush_mask
* No effect on hardware
* @ctx : ctl path ctx pointer
* @blk : DSPP block index
* @dspp_sub_blk : DSPP sub-block index
*/
void (*update_pending_flush_dspp)(struct dpu_hw_ctl *ctx,
enum dpu_dspp blk, u32 dspp_sub_blk);
/**
* OR in the given flushbits to the cached pending_(dsc_)flush_mask
* No effect on hardware
* @ctx: ctl path ctx pointer
* @blk: interface block index
*/
void (*update_pending_flush_dsc)(struct dpu_hw_ctl *ctx,
enum dpu_dsc blk);
/**
* OR in the given flushbits to the cached pending_(cdm_)flush_mask
* No effect on hardware
* @ctx: ctl path ctx pointer
* @cdm_num: idx of cdm to be flushed
*/
void (*update_pending_flush_cdm)(struct dpu_hw_ctl *ctx, enum dpu_cdm cdm_num);
/**
* Write the value of the pending_flush_mask to hardware
* @ctx : ctl path ctx pointer
*/
void (*trigger_flush)(struct dpu_hw_ctl *ctx);
/**
* Read the value of the flush register
* @ctx : ctl path ctx pointer
* @Return: value of the ctl flush register.
*/
u32 (*get_flush_register)(struct dpu_hw_ctl *ctx);
/**
* Setup ctl_path interface config
* @ctx
* @cfg : interface config structure pointer
*/
void (*setup_intf_cfg)(struct dpu_hw_ctl *ctx,
struct dpu_hw_intf_cfg *cfg);
/**
* reset ctl_path interface config
* @ctx : ctl path ctx pointer
* @cfg : interface config structure pointer
*/
void (*reset_intf_cfg)(struct dpu_hw_ctl *ctx,
struct dpu_hw_intf_cfg *cfg);
int (*reset)(struct dpu_hw_ctl *c);
/*
* wait_reset_status - checks ctl reset status
* @ctx : ctl path ctx pointer
*
* This function checks the ctl reset status bit.
* If the reset bit is set, it keeps polling the status till the hw
* reset is complete.
* Returns: 0 on success or -error if reset incomplete within interval
*/
int (*wait_reset_status)(struct dpu_hw_ctl *ctx);
/**
* Set all blend stages to disabled
* @ctx : ctl path ctx pointer
*/
void (*clear_all_blendstages)(struct dpu_hw_ctl *ctx);
/**
* Configure layer mixer to pipe configuration
* @ctx : ctl path ctx pointer
* @lm : layer mixer enumeration
* @cfg : blend stage configuration
*/
void (*setup_blendstage)(struct dpu_hw_ctl *ctx,
enum dpu_lm lm, struct dpu_hw_stage_cfg *cfg);
void (*set_active_pipes)(struct dpu_hw_ctl *ctx,
unsigned long *fetch_active);
};
/**
* struct dpu_hw_ctl : CTL PATH driver object
* @base: hardware block base structure
* @hw: block register map object
* @idx: control path index
* @caps: control path capabilities
* @mixer_count: number of mixers
* @mixer_hw_caps: mixer hardware capabilities
* @pending_flush_mask: storage for pending ctl_flush managed via ops
* @pending_intf_flush_mask: pending INTF flush
* @pending_wb_flush_mask: pending WB flush
* @pending_dsc_flush_mask: pending DSC flush
* @pending_cdm_flush_mask: pending CDM flush
* @ops: operation list
*/
struct dpu_hw_ctl {
struct dpu_hw_blk base;
struct dpu_hw_blk_reg_map hw;
/* ctl path */
int idx;
const struct dpu_ctl_cfg *caps;
int mixer_count;
const struct dpu_lm_cfg *mixer_hw_caps;
u32 pending_flush_mask;
u32 pending_intf_flush_mask;
u32 pending_wb_flush_mask;
u32 pending_merge_3d_flush_mask;
u32 pending_dspp_flush_mask[DSPP_MAX - DSPP_0];
u32 pending_dsc_flush_mask;
u32 pending_cdm_flush_mask;
/* ops */
struct dpu_hw_ctl_ops ops;
};
/**
* dpu_hw_ctl - convert base object dpu_hw_base to container
* @hw: Pointer to base hardware block
* return: Pointer to hardware block container
*/
static inline struct dpu_hw_ctl *to_dpu_hw_ctl(struct dpu_hw_blk *hw)
{
return container_of(hw, struct dpu_hw_ctl, base);
}
/**
* dpu_hw_ctl_init() - Initializes the ctl_path hw driver object.
* Should be called before accessing any ctl_path register.
* @dev: Corresponding device for devres management
* @cfg: ctl_path catalog entry for which driver object is required
* @addr: mapped register io address of MDP
* @mixer_count: Number of mixers in @mixer
* @mixer: Pointer to an array of Layer Mixers defined in the catalog
*/
struct dpu_hw_ctl *dpu_hw_ctl_init(struct drm_device *dev,
const struct dpu_ctl_cfg *cfg,
void __iomem *addr,
u32 mixer_count,
const struct dpu_lm_cfg *mixer);
#endif /*_DPU_HW_CTL_H */
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