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[/] [openrisc/] [trunk/] [rtos/] [ecos-2.0/] [packages/] [services/] [gfx/] [mw/] [v2_0/] [src/] [drivers/] [kbd_djgr.c] - Blame information for rev 174

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/*
 * Copyright (c) 1999 Greg Haerr <greg@censoft.com>
 *
 * Copyright (c) 1999 Victor Rogachev <rogach@sut.ru>
 *
 * Keyboard Driver, DOS & DJGPP & GRX version
 */
 
#include "device.h"
 
#include <bios.h>
 
 
static int  KBD_Open(KBDDEVICE *pkd);
static void KBD_Close(void);
static void KBD_GetModifierInfo(int *modifiers);
static int  KBD_Read(MWUCHAR *buf, int *modifiers);
static int      KBD_Poll(void);
 
 
KBDDEVICE kbddev = {
        KBD_Open,
        KBD_Close,
        KBD_GetModifierInfo,
        KBD_Read,
        KBD_Poll
};
 
 
/*
 * Open the keyboard.
 */
static int
KBD_Open(KBDDEVICE *pkd)
{
        return 1;
 
}
 
/*
 * Close the keyboard.
 */
static void
KBD_Close(void)
{
}
 
/*
 * Return the possible modifiers for the keyboard.
 */
static  void
KBD_GetModifierInfo(int *modifiers)
{
        *modifiers = bioskey(2);
}
 
/*
 * This reads one keystroke from the keyboard, and the current state of
 * the mode keys (ALT, SHIFT, CTRL).  Returns -1 on error, 0 if no data
 * is ready, and 1 if data was read.  This is a non-blocking call.
 */
static int
KBD_Read(MWUCHAR *buf, int *modifiers)
{
        /* wait until a char is ready*/
        if(!bioskey(1))
                return 0;
 
        /* read keyboard shift status*/
        *modifiers = bioskey(2);
 
        /* read keyboard character*/
        *buf = bioskey(0);
 
        if(*buf == 0x1b)        /* special case ESC*/
                return -2;
        return 1;
}
 
/*
**
*/
static int
KBD_Poll(void)
{
        if (bioskey(1)==0)
          return 0;
        else
          return 1;
}
 

Line No.	Rev	Author	Line
1	27	unneback	`/*`
2			`* Copyright (c) 1999 Greg Haerr <greg@censoft.com>`
3			`*`
4			`* Copyright (c) 1999 Victor Rogachev <rogach@sut.ru>`
5			`*`
6			`* Keyboard Driver, DOS & DJGPP & GRX version`
7			`*/`
8
9			`#include "device.h"`
10
11			`#include <bios.h>`
12
13
14			`static int KBD_Open(KBDDEVICE *pkd);`
15			`static void KBD_Close(void);`
16			`static void KBD_GetModifierInfo(int *modifiers);`
17			`static int KBD_Read(MWUCHAR buf, int modifiers);`
18			`static int KBD_Poll(void);`
19
20
21			`KBDDEVICE kbddev = {`
22			`KBD_Open,`
23			`KBD_Close,`
24			`KBD_GetModifierInfo,`
25			`KBD_Read,`
26			`KBD_Poll`
27			`};`
28
29
30			`/*`
31			`* Open the keyboard.`
32			`*/`
33			`static int`
34			`KBD_Open(KBDDEVICE *pkd)`
35			`{`
36			`return 1;`
37
38			`}`
39
40			`/*`
41			`* Close the keyboard.`
42			`*/`
43			`static void`
44			`KBD_Close(void)`
45			`{`
46			`}`
47
48			`/*`
49			`* Return the possible modifiers for the keyboard.`
50			`*/`
51			`static void`
52			`KBD_GetModifierInfo(int *modifiers)`
53			`{`
54			`*modifiers = bioskey(2);`
55			`}`
56
57			`/*`
58			`* This reads one keystroke from the keyboard, and the current state of`
59			`* the mode keys (ALT, SHIFT, CTRL). Returns -1 on error, 0 if no data`
60			`* is ready, and 1 if data was read. This is a non-blocking call.`
61			`*/`
62			`static int`
63			`KBD_Read(MWUCHAR buf, int modifiers)`
64			`{`
65			`/* wait until a char is ready*/`
66			`if(!bioskey(1))`
67			`return 0;`
68
69			`/* read keyboard shift status*/`
70			`*modifiers = bioskey(2);`
71
72			`/* read keyboard character*/`
73			`*buf = bioskey(0);`
74
75			`if(buf == 0x1b) / special case ESC*/`
76			`return -2;`
77			`return 1;`
78			`}`
79
80			`/*`
81			`**`
82			`*/`
83			`static int`
84			`KBD_Poll(void)`
85			`{`
86			`if (bioskey(1)==0)`
87			`return 0;`
88			`else`
89			`return 1;`
90			`}`
91

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[/] [openrisc/] [trunk/] [rtos/] [ecos-2.0/] [packages/] [services/] [gfx/] [mw/] [v2_0/] [src/] [drivers/] [kbd_djgr.c] - Blame information for rev 174