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/* 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
  44void sun8i_ui_scaler_enable(struct sun8i_mixer *mixer, int layer, bool enable);
  45void 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
  50