diff options
| -rw-r--r-- | arch/ia64/hp/sim/simserial.c | 84 |
1 files changed, 44 insertions, 40 deletions
diff --git a/arch/ia64/hp/sim/simserial.c b/arch/ia64/hp/sim/simserial.c index 120aad4..909357e 100644 --- a/arch/ia64/hp/sim/simserial.c +++ b/arch/ia64/hp/sim/simserial.c @@ -47,7 +47,7 @@ #define NR_PORTS 1 /* only one port for now */ struct serial_state { - struct tty_port tport; + struct tty_port port; struct circ_buf xmit; int irq; int x_char; @@ -132,8 +132,9 @@ static void receive_chars(struct tty_struct *tty) static irqreturn_t rs_interrupt_single(int irq, void *dev_id) { struct serial_state *info = dev_id; + struct tty_struct *tty = info->port.tty; - if (!info->tport.tty) { + if (!tty) { printk(KERN_INFO "simrs_interrupt_single: info|tty=0 info=%p problem\n", info); return IRQ_NONE; } @@ -141,7 +142,7 @@ static irqreturn_t rs_interrupt_single(int irq, void *dev_id) * pretty simple in our case, because we only get interrupts * on inbound traffic */ - receive_chars(info->tport.tty); + receive_chars(tty); return IRQ_HANDLED; } @@ -416,7 +417,7 @@ static void shutdown(struct tty_struct *tty, struct serial_state *info) { unsigned long flags; - if (!(info->tport.flags & ASYNC_INITIALIZED)) + if (!(info->port.flags & ASYNC_INITIALIZED)) return; #ifdef SIMSERIAL_DEBUG @@ -436,7 +437,7 @@ static void shutdown(struct tty_struct *tty, struct serial_state *info) set_bit(TTY_IO_ERROR, &tty->flags); - info->tport.flags &= ~ASYNC_INITIALIZED; + info->port.flags &= ~ASYNC_INITIALIZED; } local_irq_restore(flags); } @@ -454,6 +455,7 @@ static void shutdown(struct tty_struct *tty, struct serial_state *info) static void rs_close(struct tty_struct *tty, struct file * filp) { struct serial_state *info = tty->driver_data; + struct tty_port *port = &info->port; unsigned long flags; if (!info) @@ -468,30 +470,30 @@ static void rs_close(struct tty_struct *tty, struct file * filp) return; } #ifdef SIMSERIAL_DEBUG - printk("rs_close ttys%d, count = %d\n", info->line, info->tport.count); + printk("rs_close ttys%d, count = %d\n", info->line, port->count); #endif - if ((tty->count == 1) && (info->tport.count != 1)) { + if ((tty->count == 1) && (port->count != 1)) { /* * Uh, oh. tty->count is 1, which means that the tty - * structure will be freed. info->tport.count should always + * structure will be freed. port->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, " - "info->tport.count is %d\n", info->tport.count); - info->tport.count = 1; + "port->count is %d\n", port->count); + port->count = 1; } - if (--info->tport.count < 0) { + if (--port->count < 0) { printk(KERN_ERR "rs_close: bad serial port count for ttys%d: %d\n", - tty->index, info->tport.count); - info->tport.count = 0; + tty->index, port->count); + port->count = 0; } - if (info->tport.count) { + if (port->count) { local_irq_restore(flags); return; } - info->tport.flags |= ASYNC_CLOSING; + port->flags |= ASYNC_CLOSING; local_irq_restore(flags); /* @@ -501,14 +503,14 @@ static void rs_close(struct tty_struct *tty, struct file * filp) shutdown(tty, info); rs_flush_buffer(tty); tty_ldisc_flush(tty); - info->tport.tty = NULL; - if (info->tport.blocked_open) { - if (info->tport.close_delay) - schedule_timeout_interruptible(info->tport.close_delay); - wake_up_interruptible(&info->tport.open_wait); + port->tty = NULL; + if (port->blocked_open) { + if (port->close_delay) + schedule_timeout_interruptible(port->close_delay); + wake_up_interruptible(&port->open_wait); } - info->tport.flags &= ~(ASYNC_NORMAL_ACTIVE|ASYNC_CLOSING); - wake_up_interruptible(&info->tport.close_wait); + port->flags &= ~(ASYNC_NORMAL_ACTIVE|ASYNC_CLOSING); + wake_up_interruptible(&port->close_wait); } /* @@ -525,26 +527,27 @@ static void rs_wait_until_sent(struct tty_struct *tty, int timeout) static void rs_hangup(struct tty_struct *tty) { struct serial_state *info = tty->driver_data; + struct tty_port *port = &info->port; #ifdef SIMSERIAL_DEBUG printk("rs_hangup: called\n"); #endif rs_flush_buffer(tty); - if (info->tport.flags & ASYNC_CLOSING) + if (port->flags & ASYNC_CLOSING) return; shutdown(tty, info); - info->tport.count = 0; - info->tport.flags &= ~ASYNC_NORMAL_ACTIVE; - info->tport.tty = NULL; - wake_up_interruptible(&info->tport.open_wait); + port->count = 0; + port->flags &= ~ASYNC_NORMAL_ACTIVE; + port->tty = NULL; + wake_up_interruptible(&port->open_wait); } static int startup(struct tty_struct *tty, struct serial_state *state) { - struct tty_port *port = &state->tport; + struct tty_port *port = &state->port; unsigned long flags; int retval=0; unsigned long page; @@ -622,26 +625,27 @@ errout: static int rs_open(struct tty_struct *tty, struct file * filp) { struct serial_state *info = rs_table + tty->index; - int retval; + struct tty_port *port = &info->port; + int retval; - info->tport.count++; - info->tport.tty = tty; + port->count++; + port->tty = tty; tty->driver_data = info; - tty->port = &info->tport; + tty->port = port; #ifdef SIMSERIAL_DEBUG - printk("rs_open %s, count = %d\n", tty->name, info->tport.count); + printk("rs_open %s, count = %d\n", tty->name, port->count); #endif - tty->low_latency = (info->tport.flags & ASYNC_LOW_LATENCY) ? 1 : 0; + tty->low_latency = (port->flags & ASYNC_LOW_LATENCY) ? 1 : 0; /* * If the port is the middle of closing, bail out now */ - if (tty_hung_up_p(filp) || (info->tport.flags & ASYNC_CLOSING)) { - if (info->tport.flags & ASYNC_CLOSING) - interruptible_sleep_on(&info->tport.close_wait); + if (tty_hung_up_p(filp) || (port->flags & ASYNC_CLOSING)) { + if (port->flags & ASYNC_CLOSING) + interruptible_sleep_on(&port->close_wait); #ifdef SERIAL_DO_RESTART - return ((info->tport.flags & ASYNC_HUP_NOTIFY) ? + return ((port->flags & ASYNC_HUP_NOTIFY) ? -EAGAIN : -ERESTARTSYS); #else return -EAGAIN; @@ -774,8 +778,8 @@ static int __init simrs_init(void) * Let's have a little bit of fun ! */ state = rs_table; - tty_port_init(&state->tport); - state->tport.close_delay = 0; /* XXX really 0? */ + tty_port_init(&state->port); + state->port.close_delay = 0; /* XXX really 0? */ retval = hpsim_get_irq(KEYBOARD_INTR); if (retval < 0) { |
