1 /* SPDX-License-Identifier: GPL-2.0-or-later */
2 #ifndef _LINUX_SYSFB_H
3 #define _LINUX_SYSFB_H
4 
5 /*
6  * Generic System Framebuffers on x86
7  * Copyright (c) 2012-2013 David Herrmann <dh.herrmann@gmail.com>
8  */
9 
10 #include <linux/kernel.h>
11 #include <linux/platform_data/simplefb.h>
12 
13 struct screen_info;
14 
15 enum {
16 	M_I17,		/* 17-Inch iMac */
17 	M_I20,		/* 20-Inch iMac */
18 	M_I20_SR,	/* 20-Inch iMac (Santa Rosa) */
19 	M_I24,		/* 24-Inch iMac */
20 	M_I24_8_1,	/* 24-Inch iMac, 8,1th gen */
21 	M_I24_10_1,	/* 24-Inch iMac, 10,1th gen */
22 	M_I27_11_1,	/* 27-Inch iMac, 11,1th gen */
23 	M_MINI,		/* Mac Mini */
24 	M_MINI_3_1,	/* Mac Mini, 3,1th gen */
25 	M_MINI_4_1,	/* Mac Mini, 4,1th gen */
26 	M_MB,		/* MacBook */
27 	M_MB_2,		/* MacBook, 2nd rev. */
28 	M_MB_3,		/* MacBook, 3rd rev. */
29 	M_MB_5_1,	/* MacBook, 5th rev. */
30 	M_MB_6_1,	/* MacBook, 6th rev. */
31 	M_MB_7_1,	/* MacBook, 7th rev. */
32 	M_MB_SR,	/* MacBook, 2nd gen, (Santa Rosa) */
33 	M_MBA,		/* MacBook Air */
34 	M_MBA_3,	/* Macbook Air, 3rd rev */
35 	M_MBP,		/* MacBook Pro */
36 	M_MBP_2,	/* MacBook Pro 2nd gen */
37 	M_MBP_2_2,	/* MacBook Pro 2,2nd gen */
38 	M_MBP_SR,	/* MacBook Pro (Santa Rosa) */
39 	M_MBP_4,	/* MacBook Pro, 4th gen */
40 	M_MBP_5_1,	/* MacBook Pro, 5,1th gen */
41 	M_MBP_5_2,	/* MacBook Pro, 5,2th gen */
42 	M_MBP_5_3,	/* MacBook Pro, 5,3rd gen */
43 	M_MBP_6_1,	/* MacBook Pro, 6,1th gen */
44 	M_MBP_6_2,	/* MacBook Pro, 6,2th gen */
45 	M_MBP_7_1,	/* MacBook Pro, 7,1th gen */
46 	M_MBP_8_2,	/* MacBook Pro, 8,2nd gen */
47 	M_UNKNOWN	/* placeholder */
48 };
49 
50 struct efifb_dmi_info {
51 	char *optname;
52 	unsigned long base;
53 	int stride;
54 	int width;
55 	int height;
56 	int flags;
57 };
58 
59 #ifdef CONFIG_SYSFB
60 
61 void sysfb_disable(void);
62 
63 #else /* CONFIG_SYSFB */
64 
sysfb_disable(void)65 static inline void sysfb_disable(void)
66 {
67 }
68 
69 #endif /* CONFIG_SYSFB */
70 
71 #ifdef CONFIG_EFI
72 
73 extern struct efifb_dmi_info efifb_dmi_list[];
74 void sysfb_apply_efi_quirks(void);
75 void sysfb_set_efifb_fwnode(struct platform_device *pd);
76 
77 #else /* CONFIG_EFI */
78 
sysfb_apply_efi_quirks(void)79 static inline void sysfb_apply_efi_quirks(void)
80 {
81 }
82 
sysfb_set_efifb_fwnode(struct platform_device * pd)83 static inline void sysfb_set_efifb_fwnode(struct platform_device *pd)
84 {
85 }
86 
87 #endif /* CONFIG_EFI */
88 
89 #ifdef CONFIG_SYSFB_SIMPLEFB
90 
91 bool sysfb_parse_mode(const struct screen_info *si,
92 		      struct simplefb_platform_data *mode);
93 struct platform_device *sysfb_create_simplefb(const struct screen_info *si,
94 					      const struct simplefb_platform_data *mode);
95 
96 #else /* CONFIG_SYSFB_SIMPLE */
97 
sysfb_parse_mode(const struct screen_info * si,struct simplefb_platform_data * mode)98 static inline bool sysfb_parse_mode(const struct screen_info *si,
99 				    struct simplefb_platform_data *mode)
100 {
101 	return false;
102 }
103 
sysfb_create_simplefb(const struct screen_info * si,const struct simplefb_platform_data * mode)104 static inline struct platform_device *sysfb_create_simplefb(const struct screen_info *si,
105 							    const struct simplefb_platform_data *mode)
106 {
107 	return ERR_PTR(-EINVAL);
108 }
109 
110 #endif /* CONFIG_SYSFB_SIMPLE */
111 
112 #endif /* _LINUX_SYSFB_H */
113