drivers/gpu/drm/sun4i/sun8i_ui_scaler.h

   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
  38 void sun8i_ui_scaler_enable(struct sun8i_mixer *mixer, int layer, bool enable);
  39 void 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