diff options
| author | Jernej Skrabec <jernej.skrabec@siol.net> | 2017-12-01 07:05:44 +0100 |
|---|---|---|
| committer | Maxime Ripard <maxime.ripard@free-electrons.com> | 2017-12-05 13:22:44 +0100 |
| commit | b862a648de3b9ddaad772e11f0db4046d469e88e (patch) | |
| tree | ad5d87d6ecb926e0166b1da7d8986ca41bbdcd5f /drivers/gpu/drm/sun4i/sun8i_ui_scaler.h | |
| parent | 5b1f8367f3ea1a74414a4dce3ccb2e76fdd84385 (diff) | |
drm/sun4i: Add support for HW scaling to DE2
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
Diffstat (limited to 'drivers/gpu/drm/sun4i/sun8i_ui_scaler.h')
| -rw-r--r-- | drivers/gpu/drm/sun4i/sun8i_ui_scaler.h | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/drivers/gpu/drm/sun4i/sun8i_ui_scaler.h b/drivers/gpu/drm/sun4i/sun8i_ui_scaler.h new file mode 100644 index 000000000000..86295be8be78 --- /dev/null +++ b/drivers/gpu/drm/sun4i/sun8i_ui_scaler.h @@ -0,0 +1,49 @@ +/* + * Copyright (C) 2017 Jernej Skrabec <jernej.skrabec@siol.net> + * + * This file is licensed under the terms of the GNU General Public + * License version 2. This program is licensed "as is" without any + * warranty of any kind, whether express or implied. + */ + +#ifndef _SUN8I_UI_SCALER_H_ +#define _SUN8I_UI_SCALER_H_ + +#include "sun8i_mixer.h" + +/* this two macros assumes 16 fractional bits which is standard in DRM */ +#define SUN8I_UI_SCALER_SCALE_MIN 1 +#define SUN8I_UI_SCALER_SCALE_MAX ((1UL << 20) - 1) + +#define SUN8I_UI_SCALER_SCALE_FRAC 20 +#define SUN8I_UI_SCALER_PHASE_FRAC 20 +#define SUN8I_UI_SCALER_COEFF_COUNT 16 +#define SUN8I_UI_SCALER_SIZE(w, h) (((h) - 1) << 16 | ((w) - 1)) + +#define SUN8I_SCALER_GSU_CTRL(vi_cnt, ui_idx) \ + (0x20000 + 0x20000 * (vi_cnt) + 0x10000 * (ui_idx) + 0x0) +#define SUN8I_SCALER_GSU_OUTSIZE(vi_cnt, ui_idx) \ + (0x20000 + 0x20000 * (vi_cnt) + 0x10000 * (ui_idx) + 0x40) +#define SUN8I_SCALER_GSU_INSIZE(vi_cnt, ui_idx) \ + (0x20000 + 0x20000 * (vi_cnt) + 0x10000 * (ui_idx) + 0x80) +#define SUN8I_SCALER_GSU_HSTEP(vi_cnt, ui_idx) \ + (0x20000 + 0x20000 * (vi_cnt) + 0x10000 * (ui_idx) + 0x88) +#define SUN8I_SCALER_GSU_VSTEP(vi_cnt, ui_idx) \ + (0x20000 + 0x20000 * (vi_cnt) + 0x10000 * (ui_idx) + 0x8c) +#define SUN8I_SCALER_GSU_HPHASE(vi_cnt, ui_idx) \ + (0x20000 + 0x20000 * (vi_cnt) + 0x10000 * (ui_idx) + 0x90) +#define SUN8I_SCALER_GSU_VPHASE(vi_cnt, ui_idx) \ + (0x20000 + 0x20000 * (vi_cnt) + 0x10000 * (ui_idx) + 0x98) +#define SUN8I_SCALER_GSU_HCOEFF(vi_cnt, ui_idx, index) \ + (0x20000 + 0x20000 * (vi_cnt) + 0x10000 * (ui_idx) + 0x200 + \ + 0x4 * (index)) + +#define SUN8I_SCALER_GSU_CTRL_EN BIT(0) +#define SUN8I_SCALER_GSU_CTRL_COEFF_RDY BIT(4) + +void sun8i_ui_scaler_enable(struct sun8i_mixer *mixer, int layer, bool enable); +void sun8i_ui_scaler_setup(struct sun8i_mixer *mixer, int layer, + u32 src_w, u32 src_h, u32 dst_w, u32 dst_h, + u32 hscale, u32 vscale, u32 hphase, u32 vphase); + +#endif |