LXR linux/drivers/gpu/drm/sun4i/sun8i_ui

   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#define DE2_UI_SCALER_UNIT_SIZE 0x10000
  15#define DE3_UI_SCALER_UNIT_SIZE 0x08000
  16
  17/* this two macros assumes 16 fractional bits which is standard in DRM */
  18#define SUN8I_UI_SCALER_SCALE_MIN               1
  19#define SUN8I_UI_SCALER_SCALE_MAX               ((1UL << 20) - 1)
  20
  21#define SUN8I_UI_SCALER_SCALE_FRAC              20
  22#define SUN8I_UI_SCALER_PHASE_FRAC              20
  23#define SUN8I_UI_SCALER_COEFF_COUNT             16
  24#define SUN8I_UI_SCALER_SIZE(w, h)              (((h) - 1) << 16 | ((w) - 1))
  25
  26#define SUN8I_SCALER_GSU_CTRL(base)             ((base) + 0x0)
  27#define SUN8I_SCALER_GSU_OUTSIZE(base)          ((base) + 0x40)
  28#define SUN8I_SCALER_GSU_INSIZE(base)           ((base) + 0x80)
  29#define SUN8I_SCALER_GSU_HSTEP(base)            ((base) + 0x88)
  30#define SUN8I_SCALER_GSU_VSTEP(base)            ((base) + 0x8c)
  31#define SUN8I_SCALER_GSU_HPHASE(base)           ((base) + 0x90)
  32#define SUN8I_SCALER_GSU_VPHASE(base)           ((base) + 0x98)
  33#define SUN8I_SCALER_GSU_HCOEFF(base, index)    ((base) + 0x200 + 0x4 * (index))
  34
  35#define SUN8I_SCALER_GSU_CTRL_EN                BIT(0)
  36#define SUN8I_SCALER_GSU_CTRL_COEFF_RDY         BIT(4)
  37
  38void sun8i_ui_scaler_enable(struct sun8i_mixer *mixer, int layer, bool enable);
  39void sun8i_ui_scaler_setup(struct sun8i_mixer *mixer, int layer,
  40                           u32 src_w, u32 src_h, u32 dst_w, u32 dst_h,
  41                           u32 hscale, u32 vscale, u32 hphase, u32 vphase);
  42
  43#endif
  44