diff options
| author | H Hartley Sweeten <hsweeten@visionengravers.com> | 2014-03-07 17:31:34 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-03-17 13:55:55 -0700 |
| commit | e5bdf51216fafe4d21121bad2f8a36371d4c8f88 (patch) | |
| tree | 59d90a3670a5c93e5f7d7d92b0846b96ec339abc /drivers/staging/comedi/drivers/ni_at_a2150.c | |
| parent | f21c74fa4cfe675f5e81b7d604212882799f4e6d (diff) | |
staging: comedi: ni_at_a2150: use cfc_handle_events()
Use the comedi_fc helper function to automatically call the subdevice
(*cancel) function when needed and call comedi_event().
Also, remove the clearing of the events, comedi_event() does that.
In the Kconfig, COMEDI_NI_AT_A2150 already selects COMEDI_FC.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/staging/comedi/drivers/ni_at_a2150.c')
| -rw-r--r-- | drivers/staging/comedi/drivers/ni_at_a2150.c | 9 |
1 files changed, 3 insertions, 6 deletions
diff --git a/drivers/staging/comedi/drivers/ni_at_a2150.c b/drivers/staging/comedi/drivers/ni_at_a2150.c index 740f14994f97..4e39b1f63d81 100644 --- a/drivers/staging/comedi/drivers/ni_at_a2150.c +++ b/drivers/staging/comedi/drivers/ni_at_a2150.c @@ -184,7 +184,6 @@ static irqreturn_t a2150_interrupt(int irq, void *d) } /* initialize async here to make sure s is not NULL */ async = s->async; - async->events = 0; cmd = &async->cmd; status = inw(dev->iobase + STATUS_REG); @@ -196,15 +195,14 @@ static irqreturn_t a2150_interrupt(int irq, void *d) if (status & OVFL_BIT) { comedi_error(dev, "fifo overflow"); - a2150_cancel(dev, s); async->events |= COMEDI_CB_ERROR | COMEDI_CB_EOA; + cfc_handle_events(dev, s); } if ((status & DMA_TC_BIT) == 0) { comedi_error(dev, "caught non-dma interrupt? Aborting."); - a2150_cancel(dev, s); async->events |= COMEDI_CB_ERROR | COMEDI_CB_EOA; - comedi_event(dev, s); + cfc_handle_events(dev, s); return IRQ_HANDLED; } @@ -249,7 +247,6 @@ static irqreturn_t a2150_interrupt(int irq, void *d) cfc_write_to_buffer(s, dpnt); if (cmd->stop_src == TRIG_COUNT) { if (--devpriv->count == 0) { /* end of acquisition */ - a2150_cancel(dev, s); async->events |= COMEDI_CB_EOA; break; } @@ -265,7 +262,7 @@ static irqreturn_t a2150_interrupt(int irq, void *d) async->events |= COMEDI_CB_BLOCK; - comedi_event(dev, s); + cfc_handle_events(dev, s); /* clear interrupt */ outw(0x00, dev->iobase + DMA_TC_CLEAR_REG); |