Book a Demo!
CoCalc Logo Icon
StoreFeaturesDocsShareSupportNewsAboutPoliciesSign UpSign In
torvalds
GitHub Repository: torvalds/linux
 Path: blob/master/include/video/uvesafb.h
26282 views
1
/* SPDX-License-Identifier: GPL-2.0 */

2
#ifndef _UVESAFB_H

3
#define _UVESAFB_H

4


5
#include <uapi/video/uvesafb.h>

6


7


8
/* VBE CRTC Info Block */

9
struct vbe_crtc_ib {

10
	u16 horiz_total;

11
	u16 horiz_start;

12
	u16 horiz_end;

13
	u16 vert_total;

14
	u16 vert_start;

15
	u16 vert_end;

16
	u8  flags;

17
	u32 pixel_clock;

18
	u16 refresh_rate;

19
	u8  reserved[40];

20
} __attribute__ ((packed));

21


22
#define VBE_MODE_VGACOMPAT	0x20

23
#define VBE_MODE_COLOR		0x08

24
#define VBE_MODE_SUPPORTEDHW	0x01

25
#define VBE_MODE_GRAPHICS	0x10

26
#define VBE_MODE_LFB		0x80

27


28
#define VBE_MODE_MASK		(VBE_MODE_COLOR | VBE_MODE_SUPPORTEDHW | \

29
				VBE_MODE_GRAPHICS | VBE_MODE_LFB)

30


31
/* VBE Mode Info Block */

32
struct vbe_mode_ib {

33
	/* for all VBE revisions */

34
	u16 mode_attr;

35
	u8  winA_attr;

36
	u8  winB_attr;

37
	u16 win_granularity;

38
	u16 win_size;

39
	u16 winA_seg;

40
	u16 winB_seg;

41
	u32 win_func_ptr;

42
	u16 bytes_per_scan_line;

43


44
	/* for VBE 1.2+ */

45
	u16 x_res;

46
	u16 y_res;

47
	u8  x_char_size;

48
	u8  y_char_size;

49
	u8  planes;

50
	u8  bits_per_pixel;

51
	u8  banks;

52
	u8  memory_model;

53
	u8  bank_size;

54
	u8  image_pages;

55
	u8  reserved1;

56


57
	/* Direct color fields for direct/6 and YUV/7 memory models. */

58
	/* Offsets are bit positions of lsb in the mask. */

59
	u8  red_len;

60
	u8  red_off;

61
	u8  green_len;

62
	u8  green_off;

63
	u8  blue_len;

64
	u8  blue_off;

65
	u8  rsvd_len;

66
	u8  rsvd_off;

67
	u8  direct_color_info;	/* direct color mode attributes */

68


69
	/* for VBE 2.0+ */

70
	u32 phys_base_ptr;

71
	u8  reserved2[6];

72


73
	/* for VBE 3.0+ */

74
	u16 lin_bytes_per_scan_line;

75
	u8  bnk_image_pages;

76
	u8  lin_image_pages;

77
	u8  lin_red_len;

78
	u8  lin_red_off;

79
	u8  lin_green_len;

80
	u8  lin_green_off;

81
	u8  lin_blue_len;

82
	u8  lin_blue_off;

83
	u8  lin_rsvd_len;

84
	u8  lin_rsvd_off;

85
	u32 max_pixel_clock;

86
	u16 mode_id;

87
	u8  depth;

88
} __attribute__ ((packed));

89


90
#define UVESAFB_DEFAULT_MODE "640x480-16"

91


92
/* How long to wait for a reply from userspace [ms] */

93
#define UVESAFB_TIMEOUT 5000

94


95
/* Max number of concurrent tasks */

96
#define UVESAFB_TASKS_MAX 16

97


98
#define dac_reg	(0x3c8)

99
#define dac_val	(0x3c9)

100


101
struct uvesafb_pal_entry {

102
	u_char blue, green, red, pad;

103
} __attribute__ ((packed));

104


105
struct uvesafb_ktask {

106
	struct uvesafb_task t;

107
	void *buf;

108
	struct completion *done;

109
	u32 ack;

110
};

111


112
#define UVESAFB_EXACT_RES	1

113
#define UVESAFB_EXACT_DEPTH	2

114


115
struct uvesafb_par {

116
	struct vbe_ib vbe_ib;		/* VBE Info Block */

117
	struct vbe_mode_ib *vbe_modes;	/* list of supported VBE modes */

118
	int vbe_modes_cnt;

119


120
	u8 nocrtc;

121
	u8 ypan;			/* 0 - nothing, 1 - ypan, 2 - ywrap */

122
	u8 pmi_setpal;			/* PMI for palette changes */

123
	u16 *pmi_base;			/* protected mode interface location */

124
	void *pmi_start;

125
	void *pmi_pal;

126
	u8 *vbe_state_orig;		/*

127
					 * original hardware state, before the

128
					 * driver was loaded

129
					 */

130
	u8 *vbe_state_saved;		/* state saved by fb_save_state */

131
	int vbe_state_size;

132
	atomic_t ref_count;

133


134
	int mode_idx;

135
	struct vbe_crtc_ib crtc;

136
	int mtrr_handle;

137
};

138


139
#endif /* _UVESAFB_H */

140


141