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tty: more termios stuff

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Matheus
2024-05-07 18:51:31 -03:00
parent 51be9ce8bd
commit 3ada71ec1d
2 changed files with 33 additions and 9 deletions
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kernel-src/include/termios.h
+2
View File
@@ -16,6 +16,8 @@ typedef unsigned int tcflag_t;
#define IGNCR 0000200
#define ICRNL 0000400
#define OCRNL 0000010
#define ECHOCTL 0001000
#define ONLCR 0000004
#define TCGETS 0x5401
#define TCSETS 0x5402
kernel-src/io/tty.c
+31 -9
View File
@@ -18,7 +18,17 @@ void tty_process(tty_t *tty, char c) {
else if (c == '\n' && (tty->termios.c_iflag & INLCR))
c = '\r';
// TODO signal stuff
if (tty->termios.c_lflag & ISIG) {
// TODO signal stuff
}
char echoc = (tty->termios.c_lflag & ECHO) ? c : '\0';
// echo control characters
if ((tty->termios.c_lflag & ECHOCTL) && c < 32 && c != '\n' && c != '\r' && c != '\b') {
char tmp[2] = {'^', c + 0x40};
tty->writetodevice(tty->deviceinternal, tmp, 2);
}
if (tty->termios.c_lflag & ICANON) {
bool flush = false;
@@ -38,8 +48,8 @@ void tty_process(tty_t *tty, char c) {
flush = true;
}
if (tty->termios.c_lflag & ECHO)
tty->writetodevice(tty->deviceinternal, &c, 1);
if (echoc)
tty->writetodevice(tty->deviceinternal, &echoc, 1);
// check if buffer is full
tty->devicebuffer[tty->devicepos++] = c;
@@ -58,7 +68,7 @@ void tty_process(tty_t *tty, char c) {
MUTEX_RELEASE(&tty->readmutex);
}
} else {
if (tty->termios.c_lflag & ECHO)
if (echoc)
tty->writetodevice(tty->deviceinternal, &c, 1);
MUTEX_ACQUIRE(&tty->readmutex, false);
@@ -192,14 +202,24 @@ static int read(int minor, void *buffer, size_t size, uintmax_t offset, int flag
return error;
}
static int write(int minor, void *buffer, size_t size, uintmax_t offset, int flags, size_t *writec) {
static int write(int minor, void *_buffer, size_t size, uintmax_t offset, int flags, size_t *writec) {
tty_t *tty = ttyget(minor);
if (tty == NULL)
return ENODEV;
// TODO background process stuff etc
char *buffer = _buffer;
*writec = size;
tty->writetodevice(tty->deviceinternal, buffer, size);
for (int i = 0; i < size; ++i) {
if (buffer[i] == '\n' && (tty->termios.c_oflag & ONLCR)) {
char cr = '\r';
tty->writetodevice(tty->deviceinternal, &cr, 1);
}
tty->writetodevice(tty->deviceinternal, &buffer[i], 1);
}
return 0;
}
@@ -345,10 +365,12 @@ tty_t *tty_create(char *name, ttydevicewritefn_t writefn, ttyinactivefn_t inacti
MUTEX_INIT(&tty->writemutex);
tty->termios.c_iflag = ICRNL;
tty->termios.c_lflag = ECHO | ICANON | ISIG;
tty->termios.c_oflag = ONLCR;
tty->termios.c_lflag = ECHO | ICANON | ISIG | ECHOCTL;
tty->termios.c_cflag = 0;
tty->termios.c_cc[VINTR] = 0x03;
tty->termios.ibaud = 38400;
tty->termios.obaud = 38400;
tty->termios.ibaud = 38400;
tty->termios.obaud = 38400;
tty->termios.c_cc[VMIN] = 1;
tty->writetodevice = writefn;