kbd.c

一款类linux的操作系统源码

#include <errno.h>
#include <event.h>
#include <stdlib.h>
#include <dev/kbd.h>
#include <sys/intr.h>
#include <sys/types.h>
#include <sys/config.h>

#define SCAN_CODES		0x60

#define SCAN_CODE_LSHFT		0x2a
#define SCAN_CODE_RSHFT		0x36
#define SCAN_CODE_LSREL		0xaa
#define SCAN_CODE_RSREL		0xb6
#define SCAN_CODE_MFII		0xe0
#define SCAN_CODE_ACK		0xfa
#define SCAN_CODE_RESEND	         0xfe

#define KBDQ_LENGTH		32
#define KBD_SHIFT		         0x01

static int flags = 0;

static int q[KBDQ_LENGTH];
static int h = 0, t = 0;


static int asciishift[SCAN_CODES] = {
    '\0', ESC, '!', '@', '#', '$', '%', '^',
    '&', '*', '(', ')', '_', '+', '\b', '\t',
    'Q', 'W', 'E', 'R', 'T', 'Y', 'U', 'I',
    'O', 'P', '{', '}', '\n', '\0', 'A', 'S',
    'D', 'F', 'G', 'H', 'J', 'K', 'L', ':',
    '"', '~', '\0', '|', 'Z', 'X', 'C', 'V',
    'B', 'N', 'M', '<', '>', '?', '\0', '*',
    '\0', ' ', '\0', '\0', '\0', '\0', '\0', '\0',
    '\0', '\0', '\0', '\0', '\0', '\0', '\0', '7',
    '8', '9', '-', '4', '5', '6', '+', '1',
    '2', '3', '0', '.', '\0', '\0', '\0', '\0',
    '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0'
};

static int asciinormal[SCAN_CODES] = {
    '\0', ESC, '1', '2', '3', '4', '5', '6',
    '7', '8', '9', '0', '-', '=', '\b', '\t',
    'q', 'w', 'e', 'r', 't', 'y', 'u', 'i',
    'o', 'p', '[', ']', '\n', '\0', 'a', 's',
    'd', 'f', 'g', 'h', 'j', 'k', 'l', ';',
    '\'', '`', '\0', '\\', 'z', 'x', 'c', 'v',
    'b', 'n', 'm', ',', '.', '/', '\0', '*',
    '\0', ' ', '\0', '\0', '\0', '\0', '\0', '\0',
    '\0', '\0', '\0', '\0', '\0', '\0', '\0', '7',
    '8', '9', '-', '4', '5', '6', '+', '1',
    '2', '3', '0', '.', '\0', '\0', '\0', '\0',
    '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0'
};

static int mfii[SCAN_CODES] = {
    '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0',
    '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0',
    '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0',
    '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0',

    '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0',
    '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0',
    '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0',
    '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0',

    '\0', '\0', '\0', '\0', '\0', NUM_LCK, SCR_LCK, HOME,
    UP, PG_UP, '-', LEFT, '\0', RIGHT, '+', END,
    DOWN, PG_DOWN, INS, DEL, '\0', '\0', '\0', '\0',
    '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0'
};


static u_char
kbd_read_status()
{ 
}

static u_char
kbd_read_data()
{
}

static void
kbd_wait()
{
}

static void
kbd_write_cmd(u_char val)
{
}

static void
kbd_isr(void *params)
{
}

int
kbd_init()
{
    return 0;
}

int
kbd_shut()
{
    return 0;
}

void
kbd_flush()
{
}

int
get()
{
}

int
kbd_ioctl(int cmd, void *args)
{
    return ENOTTY;
}

int
kbd_get(int *c)
{
    return 0;
}