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/*
* Copyright (C) 2017 Jernej Skrabec <jernej.skrabec@siol.net>
*
* This file is licensed under the terms of the GNU General Public
* License version 2. This program is licensed "as is" without any
* warranty of any kind, whether express or implied.
*/
#ifndef _SUN8I_UI_SCALER_H_
#define _SUN8I_UI_SCALER_H_
#include "sun8i_mixer.h"
#define DE2_UI_SCALER_UNIT_SIZE 0x10000
#define DE3_UI_SCALER_UNIT_SIZE 0x08000
/* this two macros assumes 16 fractional bits which is standard in DRM */
#define SUN8I_UI_SCALER_SCALE_MIN 1
#define SUN8I_UI_SCALER_SCALE_MAX ((1UL << 20) - 1)
#define SUN8I_UI_SCALER_SCALE_FRAC 20
#define SUN8I_UI_SCALER_PHASE_FRAC 20
#define SUN8I_UI_SCALER_COEFF_COUNT 16
#define SUN8I_UI_SCALER_SIZE(w, h) (((h) - 1) << 16 | ((w) - 1))
#define SUN8I_SCALER_GSU_CTRL(base) ((base) + 0x0)
#define SUN8I_SCALER_GSU_OUTSIZE(base) ((base) + 0x40)
#define SUN8I_SCALER_GSU_INSIZE(base) ((base) + 0x80)
#define SUN8I_SCALER_GSU_HSTEP(base) ((base) + 0x88)
#define SUN8I_SCALER_GSU_VSTEP(base) ((base) + 0x8c)
#define SUN8I_SCALER_GSU_HPHASE(base) ((base) + 0x90)
#define SUN8I_SCALER_GSU_VPHASE(base) ((base) + 0x98)
#define SUN8I_SCALER_GSU_HCOEFF(base, index) ((base) + 0x200 + 0x4 * (index))
#define SUN8I_SCALER_GSU_CTRL_EN BIT(0)
#define SUN8I_SCALER_GSU_CTRL_COEFF_RDY BIT(4)
void sun8i_ui_scaler_enable(struct sun8i_mixer *mixer, int layer, bool enable);
void sun8i_ui_scaler_setup(struct sun8i_mixer *mixer, int layer,
u32 src_w, u32 src_h, u32 dst_w, u32 dst_h,
u32 hscale, u32 vscale, u32 hphase, u32 vphase);
#endif
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