static void rs_hangup(struct tty_struct *tty) { struct serial_state *info = tty->driver_data; rs_flush_buffer(tty); tty_port_hangup(&info->port); }
/* * rs_hangup() --- called by tty_hangup() when a hangup is signaled. */ static void rs_hangup(struct tty_struct *tty) { struct serial_state *info = tty->driver_data; if (serial_paranoia_check(info, tty->name, "rs_hangup")) return; rs_flush_buffer(tty); shutdown(tty, info); info->tport.count = 0; info->tport.flags &= ~ASYNC_NORMAL_ACTIVE; info->tport.tty = NULL; wake_up_interruptible(&info->tport.open_wait); }
/* * rs_hangup() --- called by tty_hangup() when a hangup is signaled. */ void rs_hangup(struct tty_struct *tty) { struct m68k_serial * info = (struct m68k_serial *)tty->driver_data; if (serial_paranoia_check(info, tty->name, "rs_hangup")) return; rs_flush_buffer(tty); shutdown(info, tty); info->tport.count = 0; info->tport.flags &= ~ASYNC_NORMAL_ACTIVE; tty_port_tty_set(&info->tport, NULL); wake_up_interruptible(&info->tport.open_wait); }
/* * rs_hangup() --- called by tty_hangup() when a hangup is signaled. */ void rs_hangup(struct tty_struct *tty) { struct m68k_serial * info = (struct m68k_serial *)tty->driver_data; if (serial_paranoia_check(info, tty->name, "rs_hangup")) return; rs_flush_buffer(tty); shutdown(info); info->event = 0; info->count = 0; info->flags &= ~S_NORMAL_ACTIVE; info->tty = NULL; wake_up_interruptible(&info->open_wait); }
static void rs_hangup(struct tty_struct *tty) { struct async_struct * info = tty->driver_data; struct serial_state *state = info->state; if (serial_paranoia_check(info, tty->name, "rs_hangup")) return; state = info->state; rs_flush_buffer(tty); shutdown(info); info->event = 0; state->count = 0; info->flags &= ~ASYNC_NORMAL_ACTIVE; info->tty = NULL; wake_up_interruptible(&info->open_wait); }
/* * rs_hangup() --- called by tty_hangup() when a hangup is signaled. */ void rs_hangup(struct tty_struct *tty) { struct async_struct * info = (struct async_struct *)tty->driver_data; if (serial_paranoia_check(info, tty->device, "rs_hangup")) return; rs_flush_buffer(tty); shutdown(info); info->event = 0; info->count = 0; info->flags &= ~(ASYNC_NORMAL_ACTIVE|ASYNC_CALLOUT_ACTIVE); info->tty = 0; serial_close_device(info); wake_up_interruptible(&info->open_wait); }
/* * ------------------------------------------------------------ * rs_close() * * This routine is called when the serial port gets closed. First, we * wait for the last remaining data to be sent. Then, we unlink its * async structure from the interrupt chain if necessary, and we free * that IRQ if nothing is left in the chain. * ------------------------------------------------------------ */ static void rs_close(struct tty_struct *tty, struct file * filp) { struct serial_state *state = tty->driver_data; struct tty_port *port = &state->tport; if (serial_paranoia_check(state, tty->name, "rs_close")) return; if (tty_port_close_start(port, tty, filp) == 0) return; /* * At this point we stop accepting input. To do this, we * disable the receive line status interrupts, and tell the * interrupt driver to stop checking the data ready bit in the * line status register. */ state->read_status_mask &= ~UART_LSR_DR; if (port->flags & ASYNC_INITIALIZED) { /* disable receive interrupts */ custom.intena = IF_RBF; mb(); /* clear any pending receive interrupt */ custom.intreq = IF_RBF; mb(); /* * Before we drop DTR, make sure the UART transmitter * has completely drained; this is especially * important if there is a transmit FIFO! */ rs_wait_until_sent(tty, state->timeout); } shutdown(tty, state); rs_flush_buffer(tty); tty_ldisc_flush(tty); port->tty = NULL; tty_port_close_end(port, tty); }
/* * rs_hangup() --- called by tty_hangup() when a hangup is signaled. */ static void rs_hangup(struct tty_struct *tty) { struct async_struct * info = (struct async_struct *)tty->driver_data; struct serial_state *state = info->state; #ifdef SIMSERIAL_DEBUG printk("rs_hangup: called\n"); #endif state = info->state; rs_flush_buffer(tty); if (info->flags & ASYNC_CLOSING) return; shutdown(info); info->event = 0; state->count = 0; info->flags &= ~ASYNC_NORMAL_ACTIVE; info->tty = 0; wake_up_interruptible(&info->open_wait); }
/* * ------------------------------------------------------------ * rs_close() * * This routine is called when the serial port gets closed. First, we * wait for the last remaining data to be sent. Then, we unlink its * S structure from the interrupt chain if necessary, and we free * that IRQ if nothing is left in the chain. * ------------------------------------------------------------ */ static void rs_close(struct tty_struct *tty, struct file * filp) { struct m68k_serial * info = (struct m68k_serial *)tty->driver_data; m68328_uart *uart = &uart_addr[info->line]; unsigned long flags; if (!info || serial_paranoia_check(info, tty->name, "rs_close")) return; local_irq_save(flags); if (tty_hung_up_p(filp)) { local_irq_restore(flags); return; } if ((tty->count == 1) && (info->count != 1)) { /* * Uh, oh. tty->count is 1, which means that the tty * structure will be freed. Info->count should always * be one in these conditions. If it's greater than * one, we've got real problems, since it means the * serial port won't be shutdown. */ printk("rs_close: bad serial port count; tty->count is 1, " "info->count is %d\n", info->count); info->count = 1; } if (--info->count < 0) { printk("rs_close: bad serial port count for ttyS%d: %d\n", info->line, info->count); info->count = 0; } if (info->count) { local_irq_restore(flags); return; } info->flags |= S_CLOSING; /* * Now we wait for the transmit buffer to clear; and we notify * the line discipline to only process XON/XOFF characters. */ tty->closing = 1; if (info->closing_wait != S_CLOSING_WAIT_NONE) tty_wait_until_sent(tty, info->closing_wait); /* * At this point we stop accepting input. To do this, we * disable the receive line status interrupts, and tell the * interrupt driver to stop checking the data ready bit in the * line status register. */ uart->ustcnt &= ~USTCNT_RXEN; uart->ustcnt &= ~(USTCNT_RXEN | USTCNT_RX_INTR_MASK); shutdown(info); rs_flush_buffer(tty); tty_ldisc_flush(tty); tty->closing = 0; info->event = 0; info->tty = NULL; #warning "This is not and has never been valid so fix it" #if 0 if (tty->ldisc.num != ldiscs[N_TTY].num) { if (tty->ldisc.close) (tty->ldisc.close)(tty); tty->ldisc = ldiscs[N_TTY]; tty->termios->c_line = N_TTY; if (tty->ldisc.open) (tty->ldisc.open)(tty); } #endif if (info->blocked_open) { if (info->close_delay) { msleep_interruptible(jiffies_to_msecs(info->close_delay)); } wake_up_interruptible(&info->open_wait); } info->flags &= ~(S_NORMAL_ACTIVE|S_CLOSING); wake_up_interruptible(&info->close_wait); local_irq_restore(flags); }
/* * ------------------------------------------------------------ * rs_close() * * This routine is called when the serial port gets closed. First, we * wait for the last remaining data to be sent. Then, we unlink its * async structure from the interrupt chain if necessary, and we free * that IRQ if nothing is left in the chain. * ------------------------------------------------------------ */ static void rs_close(struct tty_struct *tty, struct file * filp) { struct async_struct * info = (struct async_struct *)tty->driver_data; struct serial_state *state; unsigned long flags; if (!info ) return; state = info->state; local_irq_save(flags); if (tty_hung_up_p(filp)) { #ifdef SIMSERIAL_DEBUG printk("rs_close: hung_up\n"); #endif local_irq_restore(flags); return; } #ifdef SIMSERIAL_DEBUG printk("rs_close ttys%d, count = %d\n", info->line, state->count); #endif if ((tty->count == 1) && (state->count != 1)) { /* * Uh, oh. tty->count is 1, which means that the tty * structure will be freed. state->count should always * be one in these conditions. If it's greater than * one, we've got real problems, since it means the * serial port won't be shutdown. */ printk(KERN_ERR "rs_close: bad serial port count; tty->count is 1, " "state->count is %d\n", state->count); state->count = 1; } if (--state->count < 0) { printk(KERN_ERR "rs_close: bad serial port count for ttys%d: %d\n", info->line, state->count); state->count = 0; } if (state->count) { local_irq_restore(flags); return; } info->flags |= ASYNC_CLOSING; local_irq_restore(flags); /* * Now we wait for the transmit buffer to clear; and we notify * the line discipline to only process XON/XOFF characters. */ shutdown(info); rs_flush_buffer(tty); tty_ldisc_flush(tty); info->event = 0; info->tty = NULL; if (info->blocked_open) { if (info->close_delay) schedule_timeout_interruptible(info->close_delay); wake_up_interruptible(&info->open_wait); } info->flags &= ~(ASYNC_NORMAL_ACTIVE|ASYNC_CLOSING); wake_up_interruptible(&info->close_wait); }
static void rs_close(struct tty_struct *tty, struct file * filp) { struct async_struct * info = tty->driver_data; struct serial_state *state; unsigned long flags; if (!info || serial_paranoia_check(info, tty->name, "rs_close")) return; state = info->state; local_irq_save(flags); if (tty_hung_up_p(filp)) { DBG_CNT("before DEC-hung"); local_irq_restore(flags); return; } #ifdef SERIAL_DEBUG_OPEN printk("rs_close ttys%d, count = %d\n", info->line, state->count); #endif if ((tty->count == 1) && (state->count != 1)) { /* * Uh, oh. tty->count is 1, which means that the tty * structure will be freed. state->count should always * be one in these conditions. If it's greater than * one, we've got real problems, since it means the * serial port won't be shutdown. */ printk("rs_close: bad serial port count; tty->count is 1, " "state->count is %d\n", state->count); state->count = 1; } if (--state->count < 0) { printk("rs_close: bad serial port count for ttys%d: %d\n", info->line, state->count); state->count = 0; } if (state->count) { DBG_CNT("before DEC-2"); local_irq_restore(flags); return; } info->flags |= ASYNC_CLOSING; /* * Now we wait for the transmit buffer to clear; and we notify * the line discipline to only process XON/XOFF characters. */ tty->closing = 1; if (info->closing_wait != ASYNC_CLOSING_WAIT_NONE) tty_wait_until_sent(tty, info->closing_wait); /* * At this point we stop accepting input. To do this, we * disable the receive line status interrupts, and tell the * interrupt driver to stop checking the data ready bit in the * line status register. */ info->read_status_mask &= ~UART_LSR_DR; if (info->flags & ASYNC_INITIALIZED) { /* disable receive interrupts */ custom.intena = IF_RBF; mb(); /* clear any pending receive interrupt */ custom.intreq = IF_RBF; mb(); /* * Before we drop DTR, make sure the UART transmitter * has completely drained; this is especially * important if there is a transmit FIFO! */ rs_wait_until_sent(tty, info->timeout); } shutdown(info); rs_flush_buffer(tty); tty_ldisc_flush(tty); tty->closing = 0; info->event = 0; info->tty = NULL; if (info->blocked_open) { if (info->close_delay) { msleep_interruptible(jiffies_to_msecs(info->close_delay)); } wake_up_interruptible(&info->open_wait); } info->flags &= ~(ASYNC_NORMAL_ACTIVE|ASYNC_CLOSING); wake_up_interruptible(&info->close_wait); local_irq_restore(flags); }