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[/] [or1k/] [tags/] [MW_0_8_9PRE7/] [mw/] [src/] [drivers/] [kbd_tc.c] - Blame information for rev 674

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/*
 * Copyright (c) 1999 Greg Haerr <greg@censoft.com>
 *
 * Copyright (c) 2000 Victor Larionov, Victor Rogachev <rogach@sut.ru>
 *
 * Keyboard Driver, TURBO C 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);                /* no modifiers available */
}
 
/*
 * 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 1;
        else
          return 0;
}

Line No.	Rev	Author	Line
1	673	markom	`/*`
2			`* Copyright (c) 1999 Greg Haerr <greg@censoft.com>`
3			`*`
4			`* Copyright (c) 2000 Victor Larionov, Victor Rogachev <rogach@sut.ru>`
5			`*`
6			`* Keyboard Driver, TURBO C version`
7			`*/`
8
9			`#include "device.h"`
10			`#include <bios.h>`
11
12			`static int KBD_Open(KBDDEVICE *pkd);`
13			`static void KBD_Close(void);`
14			`static void KBD_GetModifierInfo(int *modifiers);`
15			`static int KBD_Read(MWUCHAR buf, int modifiers);`
16			`static int KBD_Poll(void);`
17
18			`KBDDEVICE kbddev = {`
19			`KBD_Open,`
20			`KBD_Close,`
21			`KBD_GetModifierInfo,`
22			`KBD_Read,`
23			`KBD_Poll`
24			`};`
25
26			`/*`
27			`* Open the keyboard.`
28			`*/`
29			`static int`
30			`KBD_Open(KBDDEVICE *pkd)`
31			`{`
32			`return 1;`
33			`}`
34
35			`/*`
36			`* Close the keyboard.`
37			`*/`
38			`static void`
39			`KBD_Close(void)`
40			`{`
41			`}`
42
43			`/*`
44			`* Return the possible modifiers for the keyboard.`
45			`*/`
46			`static void`
47			`KBD_GetModifierInfo(int *modifiers)`
48			`{`
49			`modifiers = bioskey(2); / no modifiers available */`
50			`}`
51
52			`/*`
53			`* This reads one keystroke from the keyboard, and the current state of`
54			`* the mode keys (ALT, SHIFT, CTRL). Returns -1 on error, 0 if no data`
55			`* is ready, and 1 if data was read. This is a non-blocking call.`
56			`*/`
57			`static int`
58			`KBD_Read(MWUCHAR buf, int modifiers)`
59			`{`
60			`/* wait until a char is ready*/`
61			`if(!bioskey(1))`
62			`return 0;`
63
64			`/* read keyboard shift status*/`
65			`*modifiers = bioskey(2);`
66
67			`/* read keyboard character*/`
68			`*buf = bioskey(0);`
69
70			`if(buf == 0x1b) / special case ESC*/`
71			`return -2;`
72			`return 1;`
73			`}`
74
75			`static int`
76			`KBD_Poll(void)`
77			`{`
78			`if (bioskey(1)!=0)`
79			`return 1;`
80			`else`
81			`return 0;`
82			`}`

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[/] [or1k/] [tags/] [MW_0_8_9PRE7/] [mw/] [src/] [drivers/] [kbd_tc.c] - Blame information for rev 674