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_VI_SCALER_H_
10#define _SUN8I_VI_SCALER_H_
11
12#include <drm/drm_fourcc.h>
13#include "sun8i_mixer.h"
14
15#define DE2_VI_SCALER_UNIT_BASE 0x20000
16#define DE2_VI_SCALER_UNIT_SIZE 0x20000
17
18#define DE3_VI_SCALER_UNIT_BASE 0x20000
19#define DE3_VI_SCALER_UNIT_SIZE 0x08000
20
21/* this two macros assumes 16 fractional bits which is standard in DRM */
22#define SUN8I_VI_SCALER_SCALE_MIN 1
23#define SUN8I_VI_SCALER_SCALE_MAX ((1UL << 20) - 1)
24
25#define SUN8I_VI_SCALER_SCALE_FRAC 20
26#define SUN8I_VI_SCALER_PHASE_FRAC 20
27#define SUN8I_VI_SCALER_COEFF_COUNT 32
28#define SUN8I_VI_SCALER_SIZE(w, h) (((h) - 1) << 16 | ((w) - 1))
29
30#define SUN8I_SCALER_VSU_CTRL(base) ((base) + 0x0)
31#define SUN50I_SCALER_VSU_SCALE_MODE(base) ((base) + 0x10)
32#define SUN50I_SCALER_VSU_DIR_THR(base) ((base) + 0x20)
33#define SUN50I_SCALER_VSU_EDGE_THR(base) ((base) + 0x24)
34#define SUN50I_SCALER_VSU_EDSCL_CTRL(base) ((base) + 0x28)
35#define SUN50I_SCALER_VSU_ANGLE_THR(base) ((base) + 0x2c)
36#define SUN8I_SCALER_VSU_OUTSIZE(base) ((base) + 0x40)
37#define SUN8I_SCALER_VSU_YINSIZE(base) ((base) + 0x80)
38#define SUN8I_SCALER_VSU_YHSTEP(base) ((base) + 0x88)
39#define SUN8I_SCALER_VSU_YVSTEP(base) ((base) + 0x8c)
40#define SUN8I_SCALER_VSU_YHPHASE(base) ((base) + 0x90)
41#define SUN8I_SCALER_VSU_YVPHASE(base) ((base) + 0x98)
42#define SUN8I_SCALER_VSU_CINSIZE(base) ((base) + 0xc0)
43#define SUN8I_SCALER_VSU_CHSTEP(base) ((base) + 0xc8)
44#define SUN8I_SCALER_VSU_CVSTEP(base) ((base) + 0xcc)
45#define SUN8I_SCALER_VSU_CHPHASE(base) ((base) + 0xd0)
46#define SUN8I_SCALER_VSU_CVPHASE(base) ((base) + 0xd8)
47#define SUN8I_SCALER_VSU_YHCOEFF0(base, i) ((base) + 0x200 + 0x4 * (i))
48#define SUN8I_SCALER_VSU_YHCOEFF1(base, i) ((base) + 0x300 + 0x4 * (i))
49#define SUN8I_SCALER_VSU_YVCOEFF(base, i) ((base) + 0x400 + 0x4 * (i))
50#define SUN8I_SCALER_VSU_CHCOEFF0(base, i) ((base) + 0x600 + 0x4 * (i))
51#define SUN8I_SCALER_VSU_CHCOEFF1(base, i) ((base) + 0x700 + 0x4 * (i))
52#define SUN8I_SCALER_VSU_CVCOEFF(base, i) ((base) + 0x800 + 0x4 * (i))
53
54#define SUN8I_SCALER_VSU_CTRL_EN BIT(0)
55#define SUN8I_SCALER_VSU_CTRL_COEFF_RDY BIT(4)
56
57#define SUN50I_SCALER_VSU_SUB_ZERO_DIR_THR(x) (((x) << 24) & 0xFF)
58#define SUN50I_SCALER_VSU_ZERO_DIR_THR(x) (((x) << 16) & 0xFF)
59#define SUN50I_SCALER_VSU_HORZ_DIR_THR(x) (((x) << 8) & 0xFF)
60#define SUN50I_SCALER_VSU_VERT_DIR_THR(x) ((x) & 0xFF)
61
62#define SUN50I_SCALER_VSU_SCALE_MODE_UI 0
63#define SUN50I_SCALER_VSU_SCALE_MODE_NORMAL 1
64#define SUN50I_SCALER_VSU_SCALE_MODE_ED_SCALE 2
65
66#define SUN50I_SCALER_VSU_EDGE_SHIFT(x) (((x) << 16) & 0xF)
67#define SUN50I_SCALER_VSU_EDGE_OFFSET(x) ((x) & 0xFF)
68
69#define SUN50I_SCALER_VSU_ANGLE_SHIFT(x) (((x) << 16) & 0xF)
70#define SUN50I_SCALER_VSU_ANGLE_OFFSET(x) ((x) & 0xFF)
71
72void sun8i_vi_scaler_enable(struct sun8i_mixer *mixer, int layer, bool enable);
73void sun8i_vi_scaler_setup(struct sun8i_mixer *mixer, int layer,
74 u32 src_w, u32 src_h, u32 dst_w, u32 dst_h,
75 u32 hscale, u32 vscale, u32 hphase, u32 vphase,
76 const struct drm_format_info *format);
77
78#endif
79

source code of linux/drivers/gpu/drm/sun4i/sun8i_vi_scaler.h