WangRunji
6 years ago
parent
76d2c6ec7b
commit
c4935a1477
@ -0,0 +1,36 @@
|
||||
extern crate pc_keyboard;
|
||||
|
||||
use spin::Mutex;
|
||||
use x86_64::instructions::port::Port;
|
||||
use self::pc_keyboard::{Keyboard, ScancodeSet1, DecodedKey, layouts};
|
||||
|
||||
pub fn init() {
|
||||
assert_has_not_been_called!("keyboard::init must be called only once");
|
||||
|
||||
use arch::interrupt::consts::*;
|
||||
use arch::interrupt::enable_irq;
|
||||
enable_irq(IRQ_KBD);
|
||||
}
|
||||
|
||||
/// Receive character from keyboard
|
||||
/// Should be called on every interrupt
|
||||
pub fn receive() -> Option<char> {
|
||||
lazy_static! {
|
||||
static ref KEYBOARD: Mutex<Keyboard<layouts::Us104Key, ScancodeSet1>> =
|
||||
Mutex::new(Keyboard::new(layouts::Us104Key, ScancodeSet1));
|
||||
}
|
||||
|
||||
let mut keyboard = KEYBOARD.lock();
|
||||
let port = Port::<u8>::new(0x60);
|
||||
|
||||
let scancode = unsafe { port.read() };
|
||||
if let Ok(Some(key_event)) = keyboard.add_byte(scancode) {
|
||||
if let Some(key) = keyboard.process_keyevent(key_event) {
|
||||
match key {
|
||||
DecodedKey::Unicode(character) => return Some(character),
|
||||
DecodedKey::RawKey(key) => {}, // TODO: handle RawKey from keyboard
|
||||
}
|
||||
}
|
||||
}
|
||||
None
|
||||
}
|
||||
@ -1,165 +0,0 @@
|
||||
// xv6 x86_64 kbd.c
|
||||
|
||||
// PC keyboard interface constants
|
||||
|
||||
#define KBSTATP 0x64 // kbd controller status port(I)
|
||||
#define KBS_DIB 0x01 // kbd data in buffer
|
||||
#define KBDATAP 0x60 // kbd data port(I)
|
||||
|
||||
#define NO 0
|
||||
|
||||
#define SHIFT (1<<0)
|
||||
#define CTL (1<<1)
|
||||
#define ALT (1<<2)
|
||||
|
||||
#define CAPSLOCK (1<<3)
|
||||
#define NUMLOCK (1<<4)
|
||||
#define SCROLLLOCK (1<<5)
|
||||
|
||||
#define E0ESC (1<<6)
|
||||
|
||||
// Special keycodes
|
||||
#define KEY_HOME 0xE0
|
||||
#define KEY_END 0xE1
|
||||
#define KEY_UP 0xE2
|
||||
#define KEY_DN 0xE3
|
||||
#define KEY_LF 0xE4
|
||||
#define KEY_RT 0xE5
|
||||
#define KEY_PGUP 0xE6
|
||||
#define KEY_PGDN 0xE7
|
||||
#define KEY_INS 0xE8
|
||||
#define KEY_DEL 0xE9
|
||||
|
||||
// C('A') == Control-A
|
||||
#define C(x) (x - '@')
|
||||
|
||||
typedef unsigned char uchar;
|
||||
typedef unsigned short ushort;
|
||||
typedef unsigned int uint;
|
||||
|
||||
static inline uchar
|
||||
inb(ushort port)
|
||||
{
|
||||
uchar data;
|
||||
|
||||
asm volatile("in %1,%0" : "=a" (data) : "d" (port));
|
||||
return data;
|
||||
}
|
||||
|
||||
static uchar shiftcode[256] =
|
||||
{
|
||||
[0x1D] = CTL,
|
||||
[0x2A] = SHIFT,
|
||||
[0x36] = SHIFT,
|
||||
[0x38] = ALT,
|
||||
[0x9D] = CTL,
|
||||
[0xB8] = ALT
|
||||
};
|
||||
|
||||
static uchar togglecode[256] =
|
||||
{
|
||||
[0x3A] = CAPSLOCK,
|
||||
[0x45] = NUMLOCK,
|
||||
[0x46] = SCROLLLOCK
|
||||
};
|
||||
|
||||
static uchar normalmap[256] =
|
||||
{
|
||||
NO, 0x1B, '1', '2', '3', '4', '5', '6', // 0x00
|
||||
'7', '8', '9', '0', '-', '=', '\b', '\t',
|
||||
'q', 'w', 'e', 'r', 't', 'y', 'u', 'i', // 0x10
|
||||
'o', 'p', '[', ']', '\n', NO, 'a', 's',
|
||||
'd', 'f', 'g', 'h', 'j', 'k', 'l', ';', // 0x20
|
||||
'\'', '`', NO, '\\', 'z', 'x', 'c', 'v',
|
||||
'b', 'n', 'm', ',', '.', '/', NO, '*', // 0x30
|
||||
NO, ' ', NO, NO, NO, NO, NO, NO,
|
||||
NO, NO, NO, NO, NO, NO, NO, '7', // 0x40
|
||||
'8', '9', '-', '4', '5', '6', '+', '1',
|
||||
'2', '3', '0', '.', NO, NO, NO, NO, // 0x50
|
||||
[0x9C] = '\n', // KP_Enter
|
||||
[0xB5] = '/', // KP_Div
|
||||
[0xC8] = KEY_UP, [0xD0] = KEY_DN,
|
||||
[0xC9] = KEY_PGUP, [0xD1] = KEY_PGDN,
|
||||
[0xCB] = KEY_LF, [0xCD] = KEY_RT,
|
||||
[0x97] = KEY_HOME, [0xCF] = KEY_END,
|
||||
[0xD2] = KEY_INS, [0xD3] = KEY_DEL
|
||||
};
|
||||
|
||||
static uchar shiftmap[256] =
|
||||
{
|
||||
NO, 033, '!', '@', '#', '$', '%', '^', // 0x00
|
||||
'&', '*', '(', ')', '_', '+', '\b', '\t',
|
||||
'Q', 'W', 'E', 'R', 'T', 'Y', 'U', 'I', // 0x10
|
||||
'O', 'P', '{', '}', '\n', NO, 'A', 'S',
|
||||
'D', 'F', 'G', 'H', 'J', 'K', 'L', ':', // 0x20
|
||||
'"', '~', NO, '|', 'Z', 'X', 'C', 'V',
|
||||
'B', 'N', 'M', '<', '>', '?', NO, '*', // 0x30
|
||||
NO, ' ', NO, NO, NO, NO, NO, NO,
|
||||
NO, NO, NO, NO, NO, NO, NO, '7', // 0x40
|
||||
'8', '9', '-', '4', '5', '6', '+', '1',
|
||||
'2', '3', '0', '.', NO, NO, NO, NO, // 0x50
|
||||
[0x9C] = '\n', // KP_Enter
|
||||
[0xB5] = '/', // KP_Div
|
||||
[0xC8] = KEY_UP, [0xD0] = KEY_DN,
|
||||
[0xC9] = KEY_PGUP, [0xD1] = KEY_PGDN,
|
||||
[0xCB] = KEY_LF, [0xCD] = KEY_RT,
|
||||
[0x97] = KEY_HOME, [0xCF] = KEY_END,
|
||||
[0xD2] = KEY_INS, [0xD3] = KEY_DEL
|
||||
};
|
||||
|
||||
static uchar ctlmap[256] =
|
||||
{
|
||||
NO, NO, NO, NO, NO, NO, NO, NO,
|
||||
NO, NO, NO, NO, NO, NO, NO, NO,
|
||||
C('Q'), C('W'), C('E'), C('R'), C('T'), C('Y'), C('U'), C('I'),
|
||||
C('O'), C('P'), NO, NO, '\r', NO, C('A'), C('S'),
|
||||
C('D'), C('F'), C('G'), C('H'), C('J'), C('K'), C('L'), NO,
|
||||
NO, NO, NO, C('\\'), C('Z'), C('X'), C('C'), C('V'),
|
||||
C('B'), C('N'), C('M'), NO, NO, C('/'), NO, NO,
|
||||
[0x9C] = '\r', // KP_Enter
|
||||
[0xB5] = C('/'), // KP_Div
|
||||
[0xC8] = KEY_UP, [0xD0] = KEY_DN,
|
||||
[0xC9] = KEY_PGUP, [0xD1] = KEY_PGDN,
|
||||
[0xCB] = KEY_LF, [0xCD] = KEY_RT,
|
||||
[0x97] = KEY_HOME, [0xCF] = KEY_END,
|
||||
[0xD2] = KEY_INS, [0xD3] = KEY_DEL
|
||||
};
|
||||
|
||||
int
|
||||
kbdgetc(void) {
|
||||
static uint shift;
|
||||
static uchar *charcode[4] = {
|
||||
normalmap, shiftmap, ctlmap, ctlmap
|
||||
};
|
||||
uint st, data, c;
|
||||
|
||||
st = inb(KBSTATP);
|
||||
if ((st & KBS_DIB) == 0)
|
||||
return -1;
|
||||
data = inb(KBDATAP);
|
||||
|
||||
if (data == 0xE0) {
|
||||
shift |= E0ESC;
|
||||
return 0;
|
||||
} else if (data & 0x80) {
|
||||
// Key released
|
||||
data = (shift & E0ESC ? data : data & 0x7F);
|
||||
shift &= ~(shiftcode[data] | E0ESC);
|
||||
return 0;
|
||||
} else if (shift & E0ESC) {
|
||||
// Last character was an E0 escape; or with 0x80
|
||||
data |= 0x80;
|
||||
shift &= ~E0ESC;
|
||||
}
|
||||
|
||||
shift |= shiftcode[data];
|
||||
shift ^= togglecode[data];
|
||||
c = charcode[shift & (CTL | SHIFT)][data];
|
||||
if (shift & CAPSLOCK) {
|
||||
if ('a' <= c && c <= 'z')
|
||||
c += 'A' - 'a';
|
||||
else if ('A' <= c && c <= 'Z')
|
||||
c += 'a' - 'A';
|
||||
}
|
||||
return c;
|
||||
}
|
||||
@ -1,15 +0,0 @@
|
||||
pub fn init() {
|
||||
assert_has_not_been_called!("keyboard::init must be called only once");
|
||||
|
||||
use arch::interrupt::consts::*;
|
||||
use arch::interrupt::enable_irq;
|
||||
enable_irq(IRQ_KBD);
|
||||
}
|
||||
|
||||
pub fn get() -> i32 {
|
||||
0
|
||||
}
|
||||
|
||||
extern {
|
||||
fn kbdgetc() -> i32;
|
||||
}
|
||||
Loading…
Reference in new issue