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 /* this two macros assumes 16 fractional bits which is standard in DRM */
  15 #define SUN8I_UI_SCALER_SCALE_MIN               1
  16 #define SUN8I_UI_SCALER_SCALE_MAX               ((1UL << 20) - 1)
  17
  18 #define SUN8I_UI_SCALER_SCALE_FRAC              20
  19 #define SUN8I_UI_SCALER_PHASE_FRAC              20
  20 #define SUN8I_UI_SCALER_COEFF_COUNT             16
  21 #define SUN8I_UI_SCALER_SIZE(w, h)              (((h) - 1) << 16 | ((w) - 1))
  22
  23 #define SUN8I_SCALER_GSU_CTRL(vi_cnt, ui_idx) \
  24         (0x20000 + 0x20000 * (vi_cnt) + 0x10000 * (ui_idx) + 0x0)
  25 #define SUN8I_SCALER_GSU_OUTSIZE(vi_cnt, ui_idx) \
  26         (0x20000 + 0x20000 * (vi_cnt) + 0x10000 * (ui_idx) + 0x40)
  27 #define SUN8I_SCALER_GSU_INSIZE(vi_cnt, ui_idx) \
  28         (0x20000 + 0x20000 * (vi_cnt) + 0x10000 * (ui_idx) + 0x80)
  29 #define SUN8I_SCALER_GSU_HSTEP(vi_cnt, ui_idx) \
  30         (0x20000 + 0x20000 * (vi_cnt) + 0x10000 * (ui_idx) + 0x88)
  31 #define SUN8I_SCALER_GSU_VSTEP(vi_cnt, ui_idx) \
  32         (0x20000 + 0x20000 * (vi_cnt) + 0x10000 * (ui_idx) + 0x8c)
  33 #define SUN8I_SCALER_GSU_HPHASE(vi_cnt, ui_idx) \
  34         (0x20000 + 0x20000 * (vi_cnt) + 0x10000 * (ui_idx) + 0x90)
  35 #define SUN8I_SCALER_GSU_VPHASE(vi_cnt, ui_idx) \
  36         (0x20000 + 0x20000 * (vi_cnt) + 0x10000 * (ui_idx) + 0x98)
  37 #define SUN8I_SCALER_GSU_HCOEFF(vi_cnt, ui_idx, index) \
  38         (0x20000 + 0x20000 * (vi_cnt) + 0x10000 * (ui_idx) + 0x200 + \
  39         0x4 * (index))
  40
  41 #define SUN8I_SCALER_GSU_CTRL_EN                BIT(0)
  42 #define SUN8I_SCALER_GSU_CTRL_COEFF_RDY         BIT(4)
  43
  44 void sun8i_ui_scaler_enable(struct sun8i_mixer *mixer, int layer, bool enable);
  45 void sun8i_ui_scaler_setup(struct sun8i_mixer *mixer, int layer,
  46                            u32 src_w, u32 src_h, u32 dst_w, u32 dst_h,
  47                            u32 hscale, u32 vscale, u32 hphase, u32 vphase);
  48
  49 #endif