/*
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* Allwinner SoCs display driver.
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*
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* Copyright (C) 2016 Allwinner.
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*
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* This file is licensed under the terms of the GNU General Public
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* License version 2. This program is licensed "as is" without any
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* warranty of any kind, whether express or implied.
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*/
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/**
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* All Winner Tech, All Right Reserved. 2014-2015 Copyright (c)
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*
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* File name : de_scaler.h
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*
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* Description : display engine 2.0 gsu/vsu basic function
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* declaration
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*
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* History : 2014/03/20 vito cheng v0.1 Initial version
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*
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*/
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#ifndef __DE_SCALER_H__
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#define __DE_SCALER_H__
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#include "de_rtmx.h"
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/* GSU configuration */
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#define GSU_PHASE_NUM 16
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/* bit19 to bit2 is fraction part */
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#define GSU_PHASE_FRAC_BITWIDTH 18
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/* bit19 to bit2 is fraction part, and bit1 to bit0 is void */
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#define GSU_PHASE_FRAC_REG_SHIFT 2
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/* frame buffer information fraction part bit width */
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#define GSU_FB_FRAC_BITWIDTH 32
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/* VSU configuration */
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#define VSU_PHASE_NUM 32
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/* bit19 to bit1 is fraction part */
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#define VSU_PHASE_FRAC_BITWIDTH 19
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/* bit19 to bit1 is fraction part, and bit0 is void */
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#define VSU_PHASE_FRAC_REG_SHIFT 1
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/* frame buffer information fraction part bit width */
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#define VSU_FB_FRAC_BITWIDTH 32
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/* GSU/VSU size limitation */
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/* VSU0 offset based on RTMX */
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#define VSU_OFST 0x20000
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#define SC_MIN_WIDTH 32
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#define SC_MIN_HEIGHT 8
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enum vsu_pixel_format {
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VSU_FORMAT_YUV422 = 0x00,
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VSU_FORMAT_YUV420 = 0x01,
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VSU_FORMAT_YUV411 = 0x02,
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VSU_FORMAT_RGB = 0x03
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};
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/* VSU FUNCTION */
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int de_vsu_init(unsigned int sel, uintptr_t reg_base);
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int de_vsu_exit(unsigned int sel);
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int de_vsu_update_regs(unsigned int sel);
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int de_vsu_set_reg_base(unsigned int sel, unsigned int chno, void *base);
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int de_vsu_enable(unsigned int sel, unsigned int chno, unsigned int en);
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int de_vsu_set_para(unsigned int sel, unsigned int chno, unsigned int enable,
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unsigned char fmt, unsigned int in_w, unsigned int in_h,
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unsigned int out_w, unsigned int out_h,
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struct scaler_para *ypara, struct scaler_para *cpara);
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int de_vsu_calc_scaler_para(unsigned char fmt, struct de_rect64 crop,
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struct de_rect frame, struct de_rect *crop_fix,
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struct scaler_para *ypara, struct scaler_para *cpara);
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int de_vsu_sel_ovl_scaler_para(unsigned char *en,
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struct scaler_para *layer_luma_scale_para,
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struct scaler_para *layer_chroma_scale_para,
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struct scaler_para *ovl_luma_scale_para,
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struct scaler_para *ovl_chroma_scale_para);
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int de_vsu_recalc_scale_para(int coarse_status, unsigned int vsu_outw,
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unsigned int vsu_outh, unsigned int vsu_inw,
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unsigned int vsu_inh, unsigned int vsu_inw_c,
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unsigned int vsu_inh_c, struct scaler_para *fix_y_para,
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struct scaler_para *fix_c_para);
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int de_recalc_ovl_bld_for_scale(unsigned int scaler_en, unsigned char *lay_en,
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int laynum, struct scaler_para *step, struct de_rect *layer,
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struct de_rect *bld_rect, unsigned int *ovlw,
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unsigned int *ovlh, unsigned int gsu_sel,
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unsigned int scn_w, unsigned scn_h);
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/* GSU FUNCTION */
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int de_gsu_init(unsigned int sel, uintptr_t reg_base);
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int de_gsu_exit(unsigned int sel);
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int de_gsu_update_regs(unsigned int sel);
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int de_gsu_set_reg_base(unsigned int sel, unsigned int chno, void *base);
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int de_gsu_enable(unsigned int sel, unsigned int chno, unsigned int en);
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int de_gsu_set_para(unsigned int sel, unsigned int chno, unsigned int enable,
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unsigned int in_w, unsigned int in_h, unsigned int out_w,
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unsigned int out_h, struct scaler_para *para);
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int de_gsu_calc_scaler_para(struct de_rect64 crop, struct de_rect frame,
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struct de_rect *crop_fix, struct scaler_para *para);
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int de_calc_ovl_coord(unsigned int frame_coord, unsigned int scale_step,
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int gsu_sel);
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int de_gsu_sel_ovl_scaler_para(unsigned char *en,
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struct scaler_para *layer_scale_para,
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struct scaler_para *ovl_scale_para);
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#endif
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