forked from Minki/linux
b862a648de
Scaling is currently supported only for RGB framebuffers Coefficients and algorithm which coefficients to select are taken from BSP driver. 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/20171201060550.10392-22-jernej.skrabec@siol.net
50 lines
1.9 KiB
C
50 lines
1.9 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_UI_SCALER_H_
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#define _SUN8I_UI_SCALER_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_UI_SCALER_SCALE_MIN 1
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#define SUN8I_UI_SCALER_SCALE_MAX ((1UL << 20) - 1)
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#define SUN8I_UI_SCALER_SCALE_FRAC 20
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#define SUN8I_UI_SCALER_PHASE_FRAC 20
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#define SUN8I_UI_SCALER_COEFF_COUNT 16
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#define SUN8I_UI_SCALER_SIZE(w, h) (((h) - 1) << 16 | ((w) - 1))
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#define SUN8I_SCALER_GSU_CTRL(vi_cnt, ui_idx) \
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(0x20000 + 0x20000 * (vi_cnt) + 0x10000 * (ui_idx) + 0x0)
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#define SUN8I_SCALER_GSU_OUTSIZE(vi_cnt, ui_idx) \
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(0x20000 + 0x20000 * (vi_cnt) + 0x10000 * (ui_idx) + 0x40)
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#define SUN8I_SCALER_GSU_INSIZE(vi_cnt, ui_idx) \
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(0x20000 + 0x20000 * (vi_cnt) + 0x10000 * (ui_idx) + 0x80)
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#define SUN8I_SCALER_GSU_HSTEP(vi_cnt, ui_idx) \
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(0x20000 + 0x20000 * (vi_cnt) + 0x10000 * (ui_idx) + 0x88)
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#define SUN8I_SCALER_GSU_VSTEP(vi_cnt, ui_idx) \
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(0x20000 + 0x20000 * (vi_cnt) + 0x10000 * (ui_idx) + 0x8c)
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#define SUN8I_SCALER_GSU_HPHASE(vi_cnt, ui_idx) \
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(0x20000 + 0x20000 * (vi_cnt) + 0x10000 * (ui_idx) + 0x90)
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#define SUN8I_SCALER_GSU_VPHASE(vi_cnt, ui_idx) \
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(0x20000 + 0x20000 * (vi_cnt) + 0x10000 * (ui_idx) + 0x98)
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#define SUN8I_SCALER_GSU_HCOEFF(vi_cnt, ui_idx, index) \
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(0x20000 + 0x20000 * (vi_cnt) + 0x10000 * (ui_idx) + 0x200 + \
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0x4 * (index))
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#define SUN8I_SCALER_GSU_CTRL_EN BIT(0)
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#define SUN8I_SCALER_GSU_CTRL_COEFF_RDY BIT(4)
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void sun8i_ui_scaler_enable(struct sun8i_mixer *mixer, int layer, bool enable);
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void sun8i_ui_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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#endif
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