1/*
 2 * Copyright (C) 2017 Jernej Skrabec <jernej.skrabec@siol.net>
 3 *
 4 * This file is licensed under the terms of the GNU General Public
 5 * License version 2.  This program is licensed "as is" without any
 6 * warranty of any kind, whether express or implied.
 7 */
 8
 9#ifndef _SUN8I_UI_SCALER_H_
10#define _SUN8I_UI_SCALER_H_
11
12#include "sun8i_mixer.h"
13
14/* this two macros assumes 16 fractional bits which is standard in DRM */
15#define SUN8I_UI_SCALER_SCALE_MIN		1
16#define SUN8I_UI_SCALER_SCALE_MAX		((1UL << 20) - 1)
17
18#define SUN8I_UI_SCALER_SCALE_FRAC		20
19#define SUN8I_UI_SCALER_PHASE_FRAC		20
20#define SUN8I_UI_SCALER_COEFF_COUNT		16
21#define SUN8I_UI_SCALER_SIZE(w, h)		(((h) - 1) << 16 | ((w) - 1))
22
23#define SUN8I_SCALER_GSU_CTRL(vi_cnt, ui_idx) \
24	(0x20000 + 0x20000 * (vi_cnt) + 0x10000 * (ui_idx) + 0x0)
25#define SUN8I_SCALER_GSU_OUTSIZE(vi_cnt, ui_idx) \
26	(0x20000 + 0x20000 * (vi_cnt) + 0x10000 * (ui_idx) + 0x40)
27#define SUN8I_SCALER_GSU_INSIZE(vi_cnt, ui_idx) \
28	(0x20000 + 0x20000 * (vi_cnt) + 0x10000 * (ui_idx) + 0x80)
29#define SUN8I_SCALER_GSU_HSTEP(vi_cnt, ui_idx) \
30	(0x20000 + 0x20000 * (vi_cnt) + 0x10000 * (ui_idx) + 0x88)
31#define SUN8I_SCALER_GSU_VSTEP(vi_cnt, ui_idx) \
32	(0x20000 + 0x20000 * (vi_cnt) + 0x10000 * (ui_idx) + 0x8c)
33#define SUN8I_SCALER_GSU_HPHASE(vi_cnt, ui_idx) \
34	(0x20000 + 0x20000 * (vi_cnt) + 0x10000 * (ui_idx) + 0x90)
35#define SUN8I_SCALER_GSU_VPHASE(vi_cnt, ui_idx) \
36	(0x20000 + 0x20000 * (vi_cnt) + 0x10000 * (ui_idx) + 0x98)
37#define SUN8I_SCALER_GSU_HCOEFF(vi_cnt, ui_idx, index) \
38	(0x20000 + 0x20000 * (vi_cnt) + 0x10000 * (ui_idx) + 0x200 + \
39	0x4 * (index))
40
41#define SUN8I_SCALER_GSU_CTRL_EN		BIT(0)
42#define SUN8I_SCALER_GSU_CTRL_COEFF_RDY		BIT(4)
43
44void sun8i_ui_scaler_enable(struct sun8i_mixer *mixer, int layer, bool enable);
45void sun8i_ui_scaler_setup(struct sun8i_mixer *mixer, int layer,
46			   u32 src_w, u32 src_h, u32 dst_w, u32 dst_h,
47			   u32 hscale, u32 vscale, u32 hphase, u32 vphase);
48
49#endif