drivers/gpu/drm/msm/sde/sde_hw_util.h

/* Copyright (c) 2015-2017, The Linux Foundation. All rights reserved.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 and
 * only 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.
 */

#ifndef _SDE_HW_UTIL_H
#define _SDE_HW_UTIL_H

#include <linux/io.h>
#include <linux/slab.h>
#include "sde_hw_mdss.h"

#define REG_MASK(n)                     ((BIT(n)) - 1)
struct sde_format_extended;

/*
 * This is the common struct maintained by each sub block
 * for mapping the register offsets in this block to the
 * absoulute IO address
 * @base_off:     mdp register mapped offset
 * @blk_off:      pipe offset relative to mdss offset
 * @length        length of register block offset
 * @xin_id        xin id
 * @hwversion     mdss hw version number
 */
struct sde_hw_blk_reg_map {
	void __iomem *base_off;
	u32 blk_off;
	u32 length;
	u32 xin_id;
	u32 hwversion;
	u32 log_mask;
};

/**
 * struct sde_hw_scaler3_de_cfg : QSEEDv3 detail enhancer configuration
 * @enable:         detail enhancer enable/disable
 * @sharpen_level1: sharpening strength for noise
 * @sharpen_level2: sharpening strength for signal
 * @ clip:          clip shift
 * @ limit:         limit value
 * @ thr_quiet:     quiet threshold
 * @ thr_dieout:    dieout threshold
 * @ thr_high:      low threshold
 * @ thr_high:      high threshold
 * @ prec_shift:    precision shift
 * @ adjust_a:      A-coefficients for mapping curve
 * @ adjust_b:      B-coefficients for mapping curve
 * @ adjust_c:      C-coefficients for mapping curve
 */
struct sde_hw_scaler3_de_cfg {
	u32 enable;
	int16_t sharpen_level1;
	int16_t sharpen_level2;
	uint16_t clip;
	uint16_t limit;
	uint16_t thr_quiet;
	uint16_t thr_dieout;
	uint16_t thr_low;
	uint16_t thr_high;
	uint16_t prec_shift;
	int16_t adjust_a[SDE_MAX_DE_CURVES];
	int16_t adjust_b[SDE_MAX_DE_CURVES];
	int16_t adjust_c[SDE_MAX_DE_CURVES];
};


/**
 * struct sde_hw_scaler3_cfg : QSEEDv3 configuration
 * @enable:        scaler enable
 * @dir_en:        direction detection block enable
 * @ init_phase_x: horizontal initial phase
 * @ phase_step_x: horizontal phase step
 * @ init_phase_y: vertical initial phase
 * @ phase_step_y: vertical phase step
 * @ preload_x:    horizontal preload value
 * @ preload_y:    vertical preload value
 * @ src_width:    source width
 * @ src_height:   source height
 * @ dst_width:    destination width
 * @ dst_height:   destination height
 * @ y_rgb_filter_cfg: y/rgb plane filter configuration
 * @ uv_filter_cfg: uv plane filter configuration
 * @ alpha_filter_cfg: alpha filter configuration
 * @ blend_cfg:    blend coefficients configuration
 * @ lut_flag:     scaler LUT update flags
 *                 0x1 swap LUT bank
 *                 0x2 update 2D filter LUT
 *                 0x4 update y circular filter LUT
 *                 0x8 update uv circular filter LUT
 *                 0x10 update y separable filter LUT
 *                 0x20 update uv separable filter LUT
 * @ dir_lut_idx:  2D filter LUT index
 * @ y_rgb_cir_lut_idx: y circular filter LUT index
 * @ uv_cir_lut_idx: uv circular filter LUT index
 * @ y_rgb_sep_lut_idx: y circular filter LUT index
 * @ uv_sep_lut_idx: uv separable filter LUT index
 * @ dir_lut:      pointer to 2D LUT
 * @ cir_lut:      pointer to circular filter LUT
 * @ sep_lut:      pointer to separable filter LUT
 * @ de: detail enhancer configuration
 */
struct sde_hw_scaler3_cfg {
	u32 enable;
	u32 dir_en;
	int32_t init_phase_x[SDE_MAX_PLANES];
	int32_t phase_step_x[SDE_MAX_PLANES];
	int32_t init_phase_y[SDE_MAX_PLANES];
	int32_t phase_step_y[SDE_MAX_PLANES];

	u32 preload_x[SDE_MAX_PLANES];
	u32 preload_y[SDE_MAX_PLANES];
	u32 src_width[SDE_MAX_PLANES];
	u32 src_height[SDE_MAX_PLANES];

	u32 dst_width;
	u32 dst_height;

	u32 y_rgb_filter_cfg;
	u32 uv_filter_cfg;
	u32 alpha_filter_cfg;
	u32 blend_cfg;

	u32 lut_flag;
	u32 dir_lut_idx;

	u32 y_rgb_cir_lut_idx;
	u32 uv_cir_lut_idx;
	u32 y_rgb_sep_lut_idx;
	u32 uv_sep_lut_idx;
	u32 *dir_lut;
	size_t dir_len;
	u32 *cir_lut;
	size_t cir_len;
	u32 *sep_lut;
	size_t sep_len;

	/*
	 * Detail enhancer settings
	 */
	struct sde_hw_scaler3_de_cfg de;
};

struct sde_hw_scaler3_lut_cfg {
	bool is_configured;
	u32 *dir_lut;
	size_t dir_len;
	u32 *cir_lut;
	size_t cir_len;
	u32 *sep_lut;
	size_t sep_len;
};

u32 *sde_hw_util_get_log_mask_ptr(void);

void sde_reg_write(struct sde_hw_blk_reg_map *c,
		u32 reg_off,
		u32 val,
		const char *name);
int sde_reg_read(struct sde_hw_blk_reg_map *c, u32 reg_off);

#define SDE_REG_WRITE(c, off, val) sde_reg_write(c, off, val, #off)
#define SDE_REG_READ(c, off) sde_reg_read(c, off)

#define MISR_FRAME_COUNT_MASK		0xFF
#define MISR_CTRL_ENABLE		BIT(8)
#define MISR_CTRL_STATUS		BIT(9)
#define MISR_CTRL_STATUS_CLEAR		BIT(10)
#define INTF_MISR_CTRL_FREE_RUN_MASK	BIT(31)

void *sde_hw_util_get_dir(void);

void sde_set_scaler_v2(struct sde_hw_scaler3_cfg *cfg,
		const struct sde_drm_scaler_v2 *scale_v2);

void sde_hw_setup_scaler3(struct sde_hw_blk_reg_map *c,
		struct sde_hw_scaler3_cfg *scaler3_cfg,
		u32 scaler_offset, u32 scaler_version,
		const struct sde_format *format);

u32 sde_hw_get_scaler3_ver(struct sde_hw_blk_reg_map *c,
		u32 scaler_offset);

void sde_hw_csc_setup(struct sde_hw_blk_reg_map  *c,
		u32 csc_reg_off,
		struct sde_csc_cfg *data, bool csc10);

uint32_t sde_copy_formats(
		struct sde_format_extended *dst_list,
		uint32_t dst_list_size,
		uint32_t dst_list_pos,
		const struct sde_format_extended *src_list,
		uint32_t src_list_size);

#endif /* _SDE_HW_UTIL_H */