xref: /linux/drivers/gpu/drm/meson/meson_venc.h (revision cdd5b5a9761fd66d17586e4f4ba6588c70e640ea)
1 /* SPDX-License-Identifier: GPL-2.0-or-later */
2 /*
3  * Copyright (C) 2016 BayLibre, SAS
4  * Author: Neil Armstrong <narmstrong@baylibre.com>
5  */
6 
7 /*
8  * Video Encoders
9  * - ENCI : Interlace Video Encoder
10  * - ENCI_DVI : Interlace Video Encoder for DVI/HDMI
11  * - ENCP : Progressive Video Encoder
12  */
13 
14 #ifndef __MESON_VENC_H
15 #define __MESON_VENC_H
16 
17 struct drm_display_mode;
18 
19 enum {
20 	MESON_VENC_MODE_NONE = 0,
21 	MESON_VENC_MODE_CVBS_PAL,
22 	MESON_VENC_MODE_CVBS_NTSC,
23 	MESON_VENC_MODE_HDMI,
24 	MESON_VENC_MODE_MIPI_DSI,
25 };
26 
27 struct meson_cvbs_enci_mode {
28 	unsigned int mode_tag;
29 	unsigned int hso_begin; /* HSO begin position */
30 	unsigned int hso_end; /* HSO end position */
31 	unsigned int vso_even; /* VSO even line */
32 	unsigned int vso_odd; /* VSO odd line */
33 	unsigned int macv_max_amp; /* Macrovision max amplitude */
34 	unsigned int video_prog_mode;
35 	unsigned int video_mode;
36 	unsigned int sch_adjust;
37 	unsigned int yc_delay;
38 	unsigned int pixel_start;
39 	unsigned int pixel_end;
40 	unsigned int top_field_line_start;
41 	unsigned int top_field_line_end;
42 	unsigned int bottom_field_line_start;
43 	unsigned int bottom_field_line_end;
44 	unsigned int video_saturation;
45 	unsigned int video_contrast;
46 	unsigned int video_brightness;
47 	unsigned int video_hue;
48 	unsigned int analog_sync_adj;
49 };
50 
51 /* LCD Encoder gamma setup */
52 void meson_encl_load_gamma(struct meson_drm *priv);
53 
54 /* HDMI Clock parameters */
55 enum drm_mode_status
56 meson_venc_hdmi_supported_mode(const struct drm_display_mode *mode);
57 bool meson_venc_hdmi_supported_vic(int vic);
58 bool meson_venc_hdmi_venc_repeat(int vic);
59 
60 /* CVBS Timings and Parameters */
61 extern struct meson_cvbs_enci_mode meson_cvbs_enci_pal;
62 extern struct meson_cvbs_enci_mode meson_cvbs_enci_ntsc;
63 
64 void meson_venci_cvbs_mode_set(struct meson_drm *priv,
65 			       struct meson_cvbs_enci_mode *mode);
66 void meson_venc_hdmi_mode_set(struct meson_drm *priv, int vic,
67 			      unsigned int ycrcb_map,
68 			      bool yuv420_mode,
69 			      const struct drm_display_mode *mode);
70 void meson_venc_mipi_dsi_mode_set(struct meson_drm *priv,
71 				  const struct drm_display_mode *mode);
72 unsigned int meson_venci_get_field(struct meson_drm *priv);
73 
74 void meson_venc_enable_vsync(struct meson_drm *priv);
75 void meson_venc_disable_vsync(struct meson_drm *priv);
76 
77 void meson_venc_init(struct meson_drm *priv);
78 
79 #endif /* __MESON_VENC_H */
80