1 /* SPDX-License-Identifier: MIT */
2 /*
3 * Copyright (c) 2005 ASPEED Technology Inc.
4 *
5 * Permission to use, copy, modify, distribute, and sell this software and its
6 * documentation for any purpose is hereby granted without fee, provided that
7 * the above copyright notice appear in all copies and that both that
8 * copyright notice and this permission notice appear in supporting
9 * documentation, and that the name of the authors not be used in
10 * advertising or publicity pertaining to distribution of the software without
11 * specific, written prior permission. The authors makes no representations
12 * about the suitability of this software for any purpose. It is provided
13 * "as is" without express or implied warranty.
14 *
15 * THE AUTHORS DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
16 * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
17 * EVENT SHALL THE AUTHORS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
18 * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
19 * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
20 * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
21 * PERFORMANCE OF THIS SOFTWARE.
22 */
23 /* Ported from xf86-video-ast driver */
24
25 #ifndef AST_VBIOS_H
26 #define AST_VBIOS_H
27
28 #include <linux/types.h>
29
30 struct ast_device;
31 struct drm_display_mode;
32
33 #define Charx8Dot 0x00000001
34 #define HalfDCLK 0x00000002
35 #define DoubleScanMode 0x00000004
36 #define LineCompareOff 0x00000008
37 #define HBorder 0x00000020
38 #define VBorder 0x00000010
39 #define WideScreenMode 0x00000100
40 #define NewModeInfo 0x00000200
41 #define NHSync 0x00000400
42 #define PHSync 0x00000800
43 #define NVSync 0x00001000
44 #define PVSync 0x00002000
45 #define SyncPP (PVSync | PHSync)
46 #define SyncPN (PVSync | NHSync)
47 #define SyncNP (NVSync | PHSync)
48 #define SyncNN (NVSync | NHSync)
49 #define AST2500PreCatchCRT 0x00004000
50
51 /* DCLK Index */
52 #define VCLK25_175 0x00
53 #define VCLK28_322 0x01
54 #define VCLK31_5 0x02
55 #define VCLK36 0x03
56 #define VCLK40 0x04
57 #define VCLK49_5 0x05
58 #define VCLK50 0x06
59 #define VCLK56_25 0x07
60 #define VCLK65 0x08
61 #define VCLK75 0x09
62 #define VCLK78_75 0x0a
63 #define VCLK94_5 0x0b
64 #define VCLK108 0x0c
65 #define VCLK135 0x0d
66 #define VCLK157_5 0x0e
67 #define VCLK162 0x0f
68 /* #define VCLK193_25 0x10 */
69 #define VCLK154 0x10
70 #define VCLK83_5 0x11
71 #define VCLK106_5 0x12
72 #define VCLK146_25 0x13
73 #define VCLK148_5 0x14
74 #define VCLK71 0x15
75 #define VCLK88_75 0x16
76 #define VCLK119 0x17
77 #define VCLK85_5 0x18
78 #define VCLK97_75 0x19
79 #define VCLK118_25 0x1a
80
81 struct ast_vbios_enhtable {
82 u32 ht;
83 u32 hde;
84 u32 hfp;
85 u32 hsync;
86 u32 vt;
87 u32 vde;
88 u32 vfp;
89 u32 vsync;
90 u32 dclk_index;
91 u32 flags;
92 u32 refresh_rate;
93 u32 refresh_rate_index;
94 u32 mode_id;
95 };
96
97 #define AST_VBIOS_INVALID_MODE \
98 {0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u}
99
ast_vbios_mode_is_valid(const struct ast_vbios_enhtable * vmode)100 static inline bool ast_vbios_mode_is_valid(const struct ast_vbios_enhtable *vmode)
101 {
102 return vmode->ht && vmode->vt && vmode->refresh_rate;
103 }
104
105 const struct ast_vbios_enhtable *ast_vbios_find_mode(const struct ast_device *ast,
106 const struct drm_display_mode *mode);
107
108 #endif
109