1343bd6c23
Basic principle of operation when using YUV framebuffer is that chroma planes have to be upscaled to same size as luma. Because of that, expand DE2 scaler library to support that. BSP driver uses another set of FIR filter coefficients for YUV planes. Signed-off-by: Jernej Skrabec <jernej.skrabec@siol.net> Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com> Link: https://patchwork.freedesktop.org/patch/msgid/20171201060550.10392-26-jernej.skrabec@siol.net
59 lines
2.4 KiB
C
59 lines
2.4 KiB
C
/*
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* Copyright (C) 2017 Jernej Skrabec <jernej.skrabec@siol.net>
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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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#ifndef _SUN8I_VI_SCALER_H_
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#define _SUN8I_VI_SCALER_H_
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#include <drm/drm_fourcc.h>
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#include "sun8i_mixer.h"
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/* this two macros assumes 16 fractional bits which is standard in DRM */
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#define SUN8I_VI_SCALER_SCALE_MIN 1
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#define SUN8I_VI_SCALER_SCALE_MAX ((1UL << 20) - 1)
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#define SUN8I_VI_SCALER_SCALE_FRAC 20
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#define SUN8I_VI_SCALER_PHASE_FRAC 20
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#define SUN8I_VI_SCALER_COEFF_COUNT 32
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#define SUN8I_VI_SCALER_SIZE(w, h) (((h) - 1) << 16 | ((w) - 1))
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#define SUN8I_SCALER_VSU_CTRL(ch) (0x20000 + 0x20000 * (ch) + 0x0)
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#define SUN8I_SCALER_VSU_OUTSIZE(ch) (0x20000 + 0x20000 * (ch) + 0x40)
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#define SUN8I_SCALER_VSU_YINSIZE(ch) (0x20000 + 0x20000 * (ch) + 0x80)
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#define SUN8I_SCALER_VSU_YHSTEP(ch) (0x20000 + 0x20000 * (ch) + 0x88)
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#define SUN8I_SCALER_VSU_YVSTEP(ch) (0x20000 + 0x20000 * (ch) + 0x8c)
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#define SUN8I_SCALER_VSU_YHPHASE(ch) (0x20000 + 0x20000 * (ch) + 0x90)
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#define SUN8I_SCALER_VSU_YVPHASE(ch) (0x20000 + 0x20000 * (ch) + 0x98)
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#define SUN8I_SCALER_VSU_CINSIZE(ch) (0x20000 + 0x20000 * (ch) + 0xc0)
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#define SUN8I_SCALER_VSU_CHSTEP(ch) (0x20000 + 0x20000 * (ch) + 0xc8)
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#define SUN8I_SCALER_VSU_CVSTEP(ch) (0x20000 + 0x20000 * (ch) + 0xcc)
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#define SUN8I_SCALER_VSU_CHPHASE(ch) (0x20000 + 0x20000 * (ch) + 0xd0)
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#define SUN8I_SCALER_VSU_CVPHASE(ch) (0x20000 + 0x20000 * (ch) + 0xd8)
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#define SUN8I_SCALER_VSU_YHCOEFF0(ch, i) \
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(0x20000 + 0x20000 * (ch) + 0x200 + 0x4 * (i))
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#define SUN8I_SCALER_VSU_YHCOEFF1(ch, i) \
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(0x20000 + 0x20000 * (ch) + 0x300 + 0x4 * (i))
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#define SUN8I_SCALER_VSU_YVCOEFF(ch, i) \
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(0x20000 + 0x20000 * (ch) + 0x400 + 0x4 * (i))
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#define SUN8I_SCALER_VSU_CHCOEFF0(ch, i) \
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(0x20000 + 0x20000 * (ch) + 0x600 + 0x4 * (i))
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#define SUN8I_SCALER_VSU_CHCOEFF1(ch, i) \
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(0x20000 + 0x20000 * (ch) + 0x700 + 0x4 * (i))
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#define SUN8I_SCALER_VSU_CVCOEFF(ch, i) \
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(0x20000 + 0x20000 * (ch) + 0x800 + 0x4 * (i))
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#define SUN8I_SCALER_VSU_CTRL_EN BIT(0)
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#define SUN8I_SCALER_VSU_CTRL_COEFF_RDY BIT(4)
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void sun8i_vi_scaler_enable(struct sun8i_mixer *mixer, int layer, bool enable);
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void sun8i_vi_scaler_setup(struct sun8i_mixer *mixer, int layer,
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u32 src_w, u32 src_h, u32 dst_w, u32 dst_h,
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u32 hscale, u32 vscale, u32 hphase, u32 vphase,
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const struct drm_format_info *format);
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#endif
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