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/* SPDX-License-Identifier: GPL-2.0-only */
/* Copyright (c) 2020-2022, Linaro Limited */
#ifndef _DPU_HW_DSC_H
#define _DPU_HW_DSC_H
#include <drm/display/drm_dsc.h>
#define DSC_MODE_SPLIT_PANEL BIT(0)
#define DSC_MODE_MULTIPLEX BIT(1)
#define DSC_MODE_VIDEO BIT(2)
struct dpu_hw_dsc;
/**
* struct dpu_hw_dsc_ops - interface to the dsc hardware driver functions
* Assumption is these functions will be called after clocks are enabled
*/
struct dpu_hw_dsc_ops {
/**
* dsc_disable - disable dsc
* @hw_dsc: Pointer to dsc context
*/
void (*dsc_disable)(struct dpu_hw_dsc *hw_dsc);
/**
* dsc_config - configures dsc encoder
* @hw_dsc: Pointer to dsc context
* @dsc: panel dsc parameters
* @mode: dsc topology mode to be set
* @initial_lines: amount of initial lines to be used
*/
void (*dsc_config)(struct dpu_hw_dsc *hw_dsc,
struct drm_dsc_config *dsc,
u32 mode,
u32 initial_lines);
/**
* dsc_config_thresh - programs panel thresholds
* @hw_dsc: Pointer to dsc context
* @dsc: panel dsc parameters
*/
void (*dsc_config_thresh)(struct dpu_hw_dsc *hw_dsc,
struct drm_dsc_config *dsc);
};
struct dpu_hw_dsc {
struct dpu_hw_blk base;
struct dpu_hw_blk_reg_map hw;
/* dsc */
enum dpu_dsc idx;
const struct dpu_dsc_cfg *caps;
/* ops */
struct dpu_hw_dsc_ops ops;
};
/**
* dpu_hw_dsc_init - initializes the dsc block for the passed dsc idx.
* @idx: DSC index for which driver object is required
* @addr: Mapped register io address of MDP
* @m: Pointer to mdss catalog data
* Returns: Error code or allocated dpu_hw_dsc context
*/
struct dpu_hw_dsc *dpu_hw_dsc_init(enum dpu_dsc idx, void __iomem *addr,
const struct dpu_mdss_cfg *m);
/**
* dpu_hw_dsc_destroy - destroys dsc driver context
* @dsc: Pointer to dsc driver context returned by dpu_hw_dsc_init
*/
void dpu_hw_dsc_destroy(struct dpu_hw_dsc *dsc);
static inline struct dpu_hw_dsc *to_dpu_hw_dsc(struct dpu_hw_blk *hw)
{
return container_of(hw, struct dpu_hw_dsc, base);
}
#endif /* _DPU_HW_DSC_H */
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