This source file includes following definitions.
- scr_writeb
- scr_readb
- scr_writew
- scr_readw
- scr_writeb
- scr_readb
- scr_writew
- scr_readw
1
2
3
4
5
6 extern int sel_cons;
7
8 extern void clear_selection(void);
9 extern int set_selection(const unsigned long arg, struct tty_struct *tty);
10 extern int paste_selection(struct tty_struct *tty);
11 extern int sel_loadlut(const unsigned long arg);
12 extern int mouse_reporting(void);
13 extern void mouse_report(struct tty_struct * tty, int butt, int mrx, int mry);
14
15 extern unsigned long video_num_columns;
16 extern unsigned long video_num_lines;
17 extern unsigned long video_size_row;
18
19 extern void do_unblank_screen(void);
20 extern unsigned short *screen_pos(int currcons, int w_offset, int viewed);
21 extern unsigned short screen_word(int currcons, int offset, int viewed);
22 extern int scrw2glyph(unsigned short scr_word);
23 extern void complement_pos(int currcons, int offset);
24 extern void invert_screen(int currcons, int offset, int count, int shift);
25
26 #define reverse_video_char(a) (((a) & 0x88) | ((((a) >> 4) | ((a) << 4)) & 0x77))
27 #define reverse_video_short(a) (((a) & 0x88ff) | \
28 (((a) & 0x7000) >> 4) | (((a) & 0x0700) << 4))
29
30
31
32 extern void getconsxy(int currcons, char *p);
33 extern void putconsxy(int currcons, char *p);
34
35
36 #ifdef __alpha__
37
38 #include <asm/io.h>
39
40 static inline void scr_writeb(unsigned char val, unsigned char * addr)
41 {
42 if ((long) addr < 0)
43 *addr = val;
44 else
45 writeb(val, (unsigned long) addr);
46 }
47
48 static inline unsigned char scr_readb(unsigned char * addr)
49 {
50 if ((long) addr < 0)
51 return *addr;
52 return readb((unsigned long) addr);
53 }
54
55 static inline void scr_writew(unsigned short val, unsigned short * addr)
56 {
57 if ((long) addr < 0)
58 *addr = val;
59 else
60 writew(val, (unsigned long) addr);
61 }
62
63 static inline unsigned short scr_readw(unsigned short * addr)
64 {
65 if ((long) addr < 0)
66 return *addr;
67 return readw((unsigned long) addr);
68 }
69
70 #else
71
72 static inline void scr_writeb(unsigned char val, unsigned char * addr)
73 {
74 *addr = val;
75 }
76
77 static inline unsigned char scr_readb(unsigned char * addr)
78 {
79 return *addr;
80 }
81
82 static inline void scr_writew(unsigned short val, unsigned short * addr)
83 {
84 *addr = val;
85 }
86
87 static inline unsigned short scr_readw(unsigned short * addr)
88 {
89 return *addr;
90 }
91
92 #endif