diff options
Diffstat (limited to 'arch/ia64')
| -rw-r--r-- | arch/ia64/hp/sim/simserial.c | 48 |
1 files changed, 23 insertions, 25 deletions
diff --git a/arch/ia64/hp/sim/simserial.c b/arch/ia64/hp/sim/simserial.c index 8f68972b015f..a08a53f033b4 100644 --- a/arch/ia64/hp/sim/simserial.c +++ b/arch/ia64/hp/sim/simserial.c @@ -46,7 +46,7 @@ #define NR_PORTS 1 /* only one port for now */ -#define IRQ_T(info) ((info->flags & ASYNC_SHARE_IRQ) ? IRQF_SHARED : IRQF_DISABLED) +#define IRQ_T(state) ((state->flags & ASYNC_SHARE_IRQ) ? IRQF_SHARED : IRQF_DISABLED) static char *serial_name = "SimSerial driver"; static char *serial_version = "0.6"; @@ -455,12 +455,11 @@ static void rs_set_termios(struct tty_struct *tty, struct ktermios *old_termios) static void shutdown(struct async_struct * info) { unsigned long flags; - struct serial_state *state; + struct serial_state *state = info->state; int retval; - if (!(info->flags & ASYNC_INITIALIZED)) return; - - state = info->state; + if (!(state->flags & ASYNC_INITIALIZED)) + return; #ifdef SIMSERIAL_DEBUG printk("Shutting down serial port %d (irq %d)....", info->line, @@ -487,7 +486,8 @@ static void shutdown(struct async_struct * info) if (IRQ_ports[state->irq]) { free_irq(state->irq, NULL); retval = request_irq(state->irq, rs_interrupt_single, - IRQ_T(info), "serial", NULL); + IRQ_T(state), "serial", + NULL); if (retval) printk(KERN_ERR "serial shutdown: request_irq: error %d" @@ -503,7 +503,7 @@ static void shutdown(struct async_struct * info) if (info->tty) set_bit(TTY_IO_ERROR, &info->tty->flags); - info->flags &= ~ASYNC_INITIALIZED; + state->flags &= ~ASYNC_INITIALIZED; } local_irq_restore(flags); } @@ -560,7 +560,7 @@ static void rs_close(struct tty_struct *tty, struct file * filp) local_irq_restore(flags); return; } - info->flags |= ASYNC_CLOSING; + state->flags |= ASYNC_CLOSING; local_irq_restore(flags); /* @@ -576,7 +576,7 @@ static void rs_close(struct tty_struct *tty, struct file * filp) schedule_timeout_interruptible(info->close_delay); wake_up_interruptible(&info->open_wait); } - info->flags &= ~(ASYNC_NORMAL_ACTIVE|ASYNC_CLOSING); + state->flags &= ~(ASYNC_NORMAL_ACTIVE|ASYNC_CLOSING); wake_up_interruptible(&info->close_wait); } @@ -600,15 +600,13 @@ static void rs_hangup(struct tty_struct *tty) printk("rs_hangup: called\n"); #endif - state = info->state; - rs_flush_buffer(tty); - if (info->flags & ASYNC_CLOSING) + if (state->flags & ASYNC_CLOSING) return; shutdown(info); state->count = 0; - info->flags &= ~ASYNC_NORMAL_ACTIVE; + state->flags &= ~ASYNC_NORMAL_ACTIVE; info->tty = NULL; wake_up_interruptible(&info->open_wait); } @@ -633,7 +631,6 @@ static int get_async_struct(int line, struct async_struct **ret_info) init_waitqueue_head(&info->open_wait); init_waitqueue_head(&info->close_wait); info->port = sstate->port; - info->flags = sstate->flags; info->xmit_fifo_size = sstate->xmit_fifo_size; info->line = line; info->state = sstate; @@ -661,7 +658,7 @@ startup(struct async_struct *info) local_irq_save(flags); - if (info->flags & ASYNC_INITIALIZED) { + if (state->flags & ASYNC_INITIALIZED) { free_page(page); goto errout; } @@ -691,7 +688,8 @@ startup(struct async_struct *info) } else handler = rs_interrupt_single; - retval = request_irq(state->irq, handler, IRQ_T(info), "simserial", NULL); + retval = request_irq(state->irq, handler, IRQ_T(state), + "simserial", NULL); if (retval) goto errout; } @@ -721,17 +719,17 @@ startup(struct async_struct *info) * Set up the tty->alt_speed kludge */ if (info->tty) { - if ((info->flags & ASYNC_SPD_MASK) == ASYNC_SPD_HI) + if ((state->flags & ASYNC_SPD_MASK) == ASYNC_SPD_HI) info->tty->alt_speed = 57600; - if ((info->flags & ASYNC_SPD_MASK) == ASYNC_SPD_VHI) + if ((state->flags & ASYNC_SPD_MASK) == ASYNC_SPD_VHI) info->tty->alt_speed = 115200; - if ((info->flags & ASYNC_SPD_MASK) == ASYNC_SPD_SHI) + if ((state->flags & ASYNC_SPD_MASK) == ASYNC_SPD_SHI) info->tty->alt_speed = 230400; - if ((info->flags & ASYNC_SPD_MASK) == ASYNC_SPD_WARP) + if ((state->flags & ASYNC_SPD_MASK) == ASYNC_SPD_WARP) info->tty->alt_speed = 460800; } - info->flags |= ASYNC_INITIALIZED; + state->flags |= ASYNC_INITIALIZED; local_irq_restore(flags); return 0; @@ -762,7 +760,7 @@ static int rs_open(struct tty_struct *tty, struct file * filp) #ifdef SIMSERIAL_DEBUG printk("rs_open %s, count = %d\n", tty->name, info->state->count); #endif - info->tty->low_latency = (info->flags & ASYNC_LOW_LATENCY) ? 1 : 0; + info->tty->low_latency = (info->state->flags & ASYNC_LOW_LATENCY) ? 1 : 0; if (!tmp_buf) { page = get_zeroed_page(GFP_KERNEL); @@ -778,11 +776,11 @@ static int rs_open(struct tty_struct *tty, struct file * filp) * 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) + (info->state->flags & ASYNC_CLOSING)) { + if (info->state->flags & ASYNC_CLOSING) interruptible_sleep_on(&info->close_wait); #ifdef SERIAL_DO_RESTART - return ((info->flags & ASYNC_HUP_NOTIFY) ? + return ((info->state->flags & ASYNC_HUP_NOTIFY) ? -EAGAIN : -ERESTARTSYS); #else return -EAGAIN; |