xref: /openbmc/linux/drivers/gpu/drm/meson/meson_venc.h (revision 3a35093a)
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 };
25 
26 struct meson_cvbs_enci_mode {
27 	unsigned int mode_tag;
28 	unsigned int hso_begin; /* HSO begin position */
29 	unsigned int hso_end; /* HSO end position */
30 	unsigned int vso_even; /* VSO even line */
31 	unsigned int vso_odd; /* VSO odd line */
32 	unsigned int macv_max_amp; /* Macrovision max amplitude */
33 	unsigned int video_prog_mode;
34 	unsigned int video_mode;
35 	unsigned int sch_adjust;
36 	unsigned int yc_delay;
37 	unsigned int pixel_start;
38 	unsigned int pixel_end;
39 	unsigned int top_field_line_start;
40 	unsigned int top_field_line_end;
41 	unsigned int bottom_field_line_start;
42 	unsigned int bottom_field_line_end;
43 	unsigned int video_saturation;
44 	unsigned int video_contrast;
45 	unsigned int video_brightness;
46 	unsigned int video_hue;
47 	unsigned int analog_sync_adj;
48 };
49 
50 /* HDMI Clock parameters */
51 enum drm_mode_status
52 meson_venc_hdmi_supported_mode(const struct drm_display_mode *mode);
53 bool meson_venc_hdmi_supported_vic(int vic);
54 bool meson_venc_hdmi_venc_repeat(int vic);
55 
56 /* CVBS Timings and Parameters */
57 extern struct meson_cvbs_enci_mode meson_cvbs_enci_pal;
58 extern struct meson_cvbs_enci_mode meson_cvbs_enci_ntsc;
59 
60 void meson_venci_cvbs_mode_set(struct meson_drm *priv,
61 			       struct meson_cvbs_enci_mode *mode);
62 void meson_venc_hdmi_mode_set(struct meson_drm *priv, int vic,
63 			      unsigned int ycrcb_map,
64 			      bool yuv420_mode,
65 			      const struct drm_display_mode *mode);
66 unsigned int meson_venci_get_field(struct meson_drm *priv);
67 
68 void meson_venc_enable_vsync(struct meson_drm *priv);
69 void meson_venc_disable_vsync(struct meson_drm *priv);
70 
71 void meson_venc_init(struct meson_drm *priv);
72 
73 #endif /* __MESON_VENC_H */
74