diff options
Diffstat (limited to 'drivers/char')
| -rw-r--r-- | drivers/char/synclink_gt.c | 68 |
1 files changed, 37 insertions, 31 deletions
diff --git a/drivers/char/synclink_gt.c b/drivers/char/synclink_gt.c index 5f6a5da696c..1f954acf2ba 100644 --- a/drivers/char/synclink_gt.c +++ b/drivers/char/synclink_gt.c @@ -2039,37 +2039,41 @@ static void bh_transmit(struct slgt_info *info) tty_wakeup(tty); } -static void dsr_change(struct slgt_info *info) +static void dsr_change(struct slgt_info *info, unsigned short status) { - get_signals(info); + if (status & BIT3) { + info->signals |= SerialSignal_DSR; + info->input_signal_events.dsr_up++; + } else { + info->signals &= ~SerialSignal_DSR; + info->input_signal_events.dsr_down++; + } DBGISR(("dsr_change %s signals=%04X\n", info->device_name, info->signals)); if ((info->dsr_chkcount)++ == IO_PIN_SHUTDOWN_LIMIT) { slgt_irq_off(info, IRQ_DSR); return; } info->icount.dsr++; - if (info->signals & SerialSignal_DSR) - info->input_signal_events.dsr_up++; - else - info->input_signal_events.dsr_down++; wake_up_interruptible(&info->status_event_wait_q); wake_up_interruptible(&info->event_wait_q); info->pending_bh |= BH_STATUS; } -static void cts_change(struct slgt_info *info) +static void cts_change(struct slgt_info *info, unsigned short status) { - get_signals(info); + if (status & BIT2) { + info->signals |= SerialSignal_CTS; + info->input_signal_events.cts_up++; + } else { + info->signals &= ~SerialSignal_CTS; + info->input_signal_events.cts_down++; + } DBGISR(("cts_change %s signals=%04X\n", info->device_name, info->signals)); if ((info->cts_chkcount)++ == IO_PIN_SHUTDOWN_LIMIT) { slgt_irq_off(info, IRQ_CTS); return; } info->icount.cts++; - if (info->signals & SerialSignal_CTS) - info->input_signal_events.cts_up++; - else - info->input_signal_events.cts_down++; wake_up_interruptible(&info->status_event_wait_q); wake_up_interruptible(&info->event_wait_q); info->pending_bh |= BH_STATUS; @@ -2090,20 +2094,21 @@ static void cts_change(struct slgt_info *info) } } -static void dcd_change(struct slgt_info *info) +static void dcd_change(struct slgt_info *info, unsigned short status) { - get_signals(info); + if (status & BIT1) { + info->signals |= SerialSignal_DCD; + info->input_signal_events.dcd_up++; + } else { + info->signals &= ~SerialSignal_DCD; + info->input_signal_events.dcd_down++; + } DBGISR(("dcd_change %s signals=%04X\n", info->device_name, info->signals)); if ((info->dcd_chkcount)++ == IO_PIN_SHUTDOWN_LIMIT) { slgt_irq_off(info, IRQ_DCD); return; } info->icount.dcd++; - if (info->signals & SerialSignal_DCD) { - info->input_signal_events.dcd_up++; - } else { - info->input_signal_events.dcd_down++; - } #if SYNCLINK_GENERIC_HDLC if (info->netcount) { if (info->signals & SerialSignal_DCD) @@ -2126,20 +2131,21 @@ static void dcd_change(struct slgt_info *info) } } -static void ri_change(struct slgt_info *info) +static void ri_change(struct slgt_info *info, unsigned short status) { - get_signals(info); + if (status & BIT0) { + info->signals |= SerialSignal_RI; + info->input_signal_events.ri_up++; + } else { + info->signals &= ~SerialSignal_RI; + info->input_signal_events.ri_down++; + } DBGISR(("ri_change %s signals=%04X\n", info->device_name, info->signals)); if ((info->ri_chkcount)++ == IO_PIN_SHUTDOWN_LIMIT) { slgt_irq_off(info, IRQ_RI); return; } - info->icount.dcd++; - if (info->signals & SerialSignal_RI) { - info->input_signal_events.ri_up++; - } else { - info->input_signal_events.ri_down++; - } + info->icount.rng++; wake_up_interruptible(&info->status_event_wait_q); wake_up_interruptible(&info->event_wait_q); info->pending_bh |= BH_STATUS; @@ -2190,13 +2196,13 @@ static void isr_serial(struct slgt_info *info) } if (status & IRQ_DSR) - dsr_change(info); + dsr_change(info, status); if (status & IRQ_CTS) - cts_change(info); + cts_change(info, status); if (status & IRQ_DCD) - dcd_change(info); + dcd_change(info, status); if (status & IRQ_RI) - ri_change(info); + ri_change(info, status); } static void isr_rdma(struct slgt_info *info) |