static int rs_open(struct tty_struct *tty, struct file * filp)
{
struct async_struct *info;
int retval, line;
line = tty->index;
if ((line < 0) || (line >= NR_PORTS)) {
return -ENODEV;
}
retval = get_async_struct(line, &info);
if (retval) {
return retval;
}
tty->driver_data = info;
info->tty = tty;
if (serial_paranoia_check(info, tty->name, "rs_open"))
return -ENODEV;
#ifdef SERIAL_DEBUG_OPEN
printk("rs_open %s, count = %d\n", tty->name, info->state->count);
#endif
info->tty->low_latency = (info->flags & ASYNC_LOW_LATENCY) ? 1 : 0;
/*
* If the port is the middle of closing, bail out now
*/
if (tty_hung_up_p(filp) ||
(info->flags & ASYNC_CLOSING)) {
if (info->flags & ASYNC_CLOSING)
interruptible_sleep_on(&info->close_wait);
#ifdef SERIAL_DO_RESTART
return ((info->flags & ASYNC_HUP_NOTIFY) ?
-EAGAIN : -ERESTARTSYS);
#else
return -EAGAIN;
#endif
}
/*
* Start up serial port
*/
retval = startup(info);
if (retval) {
return retval;
}
retval = block_til_ready(tty, filp, info);
if (retval) {
#ifdef SERIAL_DEBUG_OPEN
printk("rs_open returning after block_til_ready with %d\n",
retval);
#endif
return retval;
}
#ifdef SERIAL_DEBUG_OPEN
printk("rs_open %s successful...", tty->name);
#endif
return 0;
}
/*
* This routine is called whenever a serial port is opened. It
* enables interrupts for a serial port, linking in its S structure into
* the IRQ chain. It also performs the serial-specific
* initialization for the tty structure.
*/
int rs_open(struct tty_struct *tty, struct file * filp)
{
struct m68k_serial *info;
int retval, line;
line = tty->index;
if (line >= NR_PORTS || line < 0) /* we have exactly one */
return -ENODEV;
info = &m68k_soft[line];
if (serial_paranoia_check(info, tty->name, "rs_open"))
return -ENODEV;
info->count++;
tty->driver_data = info;
info->tty = tty;
/*
* Start up serial port
*/
retval = startup(info);
if (retval)
return retval;
return block_til_ready(tty, filp, info);
}
int gbatxt_open(struct tty_struct *tty, struct file * filp)
{
struct gbatxt_serial *info;
int retval, line;
line = MINOR(tty->device) - tty->driver.minor_start;
if ((line < 0) || (line >= NR_PORTS))
return -ENODEV;
info = gbatxt_table + line;
#ifdef SERIAL_DEBUG_OPEN
printk("gbatxt_open %s%d, count = %d\n", tty->driver.name, info->line,
info->count);
#endif
info->count++;
tty->driver_data = info;
info->tty = tty;
/*
* Start up serial port
*/
retval = startup(info);
if (retval)
return retval;
retval = block_til_ready(tty, filp, info);
if (retval) {
#ifdef SERIAL_DEBUG_OPEN
printk("gbatxt_open returning after block_til_ready with %d\n",
retval);
#endif
return retval;
}
if ((info->count == 1) && (info->flags & ASYNC_SPLIT_TERMIOS)) {
if (tty->driver.subtype == SERIAL_TYPE_NORMAL)
*tty->termios = info->normal_termios;
else
*tty->termios = info->callout_termios;
gbatxt_change_speed(info);
}
info->session = current->session;
info->pgrp = current->pgrp;
#ifdef SERIAL_DEBUG_OPEN
printk("gbatxt_open ttyS%d successful...\n", info->line);
#endif
return 0;
}
/*
* This routine is called whenever a serial port is opened. It
* enables interrupts for a serial port, linking in its S structure into
* the IRQ chain. It also performs the serial-specific
* initialization for the tty structure.
*/
int rs_open(struct tty_struct *tty, struct file * filp)
{
int retval, line;
struct cnxt_serial *info;
line = MINOR(tty->device) - tty->driver.minor_start;
if (line != 0) /* we have exactly one */
return -ENODEV;
info = &uart_info;
if (serial_paranoia_check(info, tty->device, "rs_open"))
return -ENODEV;
info->count++;
tty->driver_data = info;
info->tty = tty;
/*
* Start up serial port
*/
retval = startup(info);
if (retval)
return retval;
retval = block_til_ready(tty, filp, info);
if (retval) {
printk("rs_open returning after block_til_ready with %d\n",
retval);
return retval;
}
if ((info->count == 1) && (info->flags & S_SPLIT_TERMIOS)) {
if (tty->driver.subtype == SERIAL_TYPE_NORMAL)
*tty->termios = info->normal_termios;
else
*tty->termios = info->callout_termios;
change_speed(info);
}
info->session = current->session;
info->pgrp = current->pgrp;
// Enable GPIO interrupt line for console uart
SetGPIOIntEnable(GPIOINT_UART1, IRQ_ON);
return 0;
}
/*
* This routine is called whenever a serial port is opened. It
* enables interrupts for a serial port. It also performs the
* serial-specific initialization for the tty structure.
*/
static int dz_open(struct tty_struct *tty, struct file *filp)
{
struct dz_serial *info;
int retval, line;
line = MINOR(tty->device) - tty->driver.minor_start;
/* The dz lines for the mouse/keyboard must be
* opened using their respective drivers.
*/
if ((line < 0) || (line >= DZ_NB_PORT))
return -ENODEV;
if ((line == DZ_KEYBOARD) || (line == DZ_MOUSE))
return -ENODEV;
info = lines[line];
info->count++;
tty->driver_data = info;
info->tty = tty;
/*
* Start up serial port
*/
retval = startup(info);
if (retval)
return retval;
retval = block_til_ready(tty, filp, info);
if (retval)
return retval;
if ((info->count == 1) && (info->flags & DZ_SPLIT_TERMIOS)) {
if (tty->driver.subtype == SERIAL_TYPE_NORMAL)
*tty->termios = info->normal_termios;
else
*tty->termios = info->callout_termios;
change_speed(info);
}
info->session = current->session;
info->pgrp = current->pgrp;
return 0;
}
/*
* This routine is called whenever a serial port is opened. It
* enables interrupts for a serial port, linking in its S structure into
* the IRQ chain. It also performs the serial-specific
* initialization for the tty structure.
*/
int rs_open(struct tty_struct *tty, struct file * filp)
{
struct NIOS_serial *info;
int retval, line;
line = MINOR(tty->device) - tty->driver.minor_start;
if (line >=serial_driver.num) /* too many */
return -ENODEV;
info = &nios_soft[line];
if (serial_paranoia_check(info, tty->device, "rs_open"))
return -ENODEV;
info->count++;
tty->driver_data = info;
info->tty = tty;
/*
* Start up serial port
*/
retval = startup(info);
if (retval)
return retval;
retval = block_til_ready(tty, filp, info);
if (retval) {
return retval;
}
if ((info->count == 1) && (info->flags & S_SPLIT_TERMIOS)) {
if (tty->driver.subtype == SERIAL_TYPE_NORMAL)
*tty->termios = info->normal_termios;
else
*tty->termios = info->callout_termios;
change_speed(info);
}
info->session = current->session;
info->pgrp = current->pgrp;
return 0;
}
/*
* This routine is called whenever a serial port is opened. It
* enables interrupts for a serial port, linking in its structure into
* the IRQ chain. It also performs the serial-specific
* initialization for the tty structure.
*/
int mcfrs_open(struct tty_struct *tty, struct file * filp)
{
struct mcf_serial *info;
int retval, line;
line = tty->index;
if ((line < 0) || (line >= NR_PORTS))
return -ENODEV;
info = mcfrs_table + line;
if (serial_paranoia_check(info, tty->name, "mcfrs_open"))
return -ENODEV;
#ifdef SERIAL_DEBUG_OPEN
printk("mcfrs_open %s, count = %d\n", tty->name, info->count);
#endif
info->count++;
tty->driver_data = info;
info->port.tty = tty;
/*
* Start up serial port
*/
retval = startup(info);
if (retval)
return retval;
retval = block_til_ready(tty, filp, info);
if (retval) {
#ifdef SERIAL_DEBUG_OPEN
printk("mcfrs_open returning after block_til_ready with %d\n",
retval);
#endif
return retval;
}
#ifdef SERIAL_DEBUG_OPEN
printk("mcfrs_open %s successful...\n", tty->name);
#endif
return 0;
}
/*
* This routine is called whenever a serial port is opened. It
* enables interrupts for a serial port, linking in its S structure into
* the IRQ chain. It also performs the serial-specific
* initialization for the tty structure.
*/
int rs_open(struct tty_struct *tty, struct file * filp)
{
struct m68k_serial *info;
int retval;
info = &m68k_soft[tty->index];
if (serial_paranoia_check(info, tty->name, "rs_open"))
return -ENODEV;
info->count++;
tty->driver_data = info;
info->tty = tty;
/*
* Start up serial port
*/
retval = startup(info);
if (retval)
return retval;
return block_til_ready(tty, filp, info);
}
/*
* This routine is called whenever a serial port is opened. It
* enables interrupts for a serial port, linking in its async structure into
* the IRQ chain. It also performs the serial-specific
* initialization for the tty structure.
*/
int rs_open(struct tty_struct *tty, struct file * filp)
{
struct async_struct *info;
int retval, line;
line = MINOR(tty->device) - tty->driver.minor_start;
if ((line < 0) || (line >= NR_PORTS))
return -ENODEV;
info = rs_table + line;
if (serial_paranoia_check(info, tty->device, "rs_open"))
return -ENODEV;
#ifdef SERIAL_DEBUG_OPEN
printk("rs_open %s%d, count = %d\n", tty->driver.name, info->line,
info->count);
#endif
if (!(info->flags & ASYNC_INITIALIZED)) {
char device_name[25];
mach_port_t device_port;
dev_mode_t device_mode;
kern_return_t kr;
int word, count;
sprintf(device_name, "com%d", line);
device_mode = D_READ | D_WRITE;
kr = device_open(device_server_port,
MACH_PORT_NULL,
device_mode,
server_security_token,
device_name,
&device_port);
if (kr != D_SUCCESS) {
if (kr != D_NO_SUCH_DEVICE) {
MACH3_DEBUG(2, kr,
("rs_open(dev 0x%x): "
"device_open(\"%s\")",
tty->device,
device_name));
}
return -ENODEV;
}
info->flags &= ~ASYNC_DCD_PRESENT;
count = TTY_MODEM_COUNT;
kr = device_get_status(device_port,
TTY_MODEM, &word, &count);
if (kr == D_SUCCESS && (word & TM_CAR) != 0)
info->flags |= ASYNC_DCD_PRESENT;
else
info->flags &= ~ASYNC_DCD_PRESENT;
/* Flush any garbage data which might be left over.. */
count = TTY_FLUSH_COUNT;
word = D_READ|D_WRITE;
kr = device_set_status(device_port, TTY_FLUSH, &word, count);
info->device_port = device_port;
tty->flip.char_buf_ptr = tty->flip.char_buf;
tty->flip.flag_buf_ptr = tty->flip.flag_buf;
tty->flip.count = 0;
/* Now register a few asynchronous routines.. */
device_reply_register(&info->reply_port,
(char *) info, serial_read_reply,
serial_write_reply);
}
ASSERT(MACH_PORT_VALID(info->device_port));
info->count++;
tty->driver_data = info;
info->tty = tty;
/*
* Start up serial port
*/
retval = startup(info);
if (retval)
return retval;
if (info->count == 1)
server_thread_start(serial_read_thread, (void *) line);
retval = block_til_ready(tty, filp, info);
if (retval) {
#ifdef SERIAL_DEBUG_OPEN
printk("rs_open returning after block_til_ready with %d\n",
retval);
#endif
return retval;
}
if ((info->count == 1) && (info->flags & ASYNC_SPLIT_TERMIOS)) {
if (tty->driver.subtype == SERIAL_TYPE_NORMAL)
*tty->termios = info->normal_termios;
else
*tty->termios = info->callout_termios;
change_speed(info);
}
info->session = current->session;
info->pgrp = current->pgrp;
#ifdef SERIAL_DEBUG_OPEN
printk("rs_open ttys%d successful...", info->line);
#endif
return 0;
}
