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staging: comedi: cb_pcidas: use cfc_handle_events()

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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_CB_PCIDAS 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>
This commit is contained in:
H Hartley Sweeten 2014-03-07 17:31:37 -07:00 committed by Greg Kroah-Hartman
parent 94c0377d56
commit 38255b623e
1 changed files with 3 additions and 11 deletions
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14
drivers/staging/comedi/drivers/cb_pcidas.c
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@ -1277,8 +1277,6 @@ static void handle_ao_interrupt(struct comedi_device *dev, unsigned int status)
unsigned int num_points;
unsigned long flags;
async->events = 0;
if (status & DAEMI) {
/* clear dac empty interrupt latch */
spin_lock_irqsave(&dev->spinlock, flags);
@ -1290,7 +1288,6 @@ static void handle_ao_interrupt(struct comedi_device *dev, unsigned int status)
(cmd->stop_src == TRIG_COUNT
&& devpriv->ao_count)) {
comedi_error(dev, "dac fifo underflow");
cb_pcidas_ao_cancel(dev, s);
async->events |= COMEDI_CB_ERROR;
}
async->events |= COMEDI_CB_EOA;
@ -1320,7 +1317,7 @@ static void handle_ao_interrupt(struct comedi_device *dev, unsigned int status)
spin_unlock_irqrestore(&dev->spinlock, flags);
}
comedi_event(dev, s);
cfc_handle_events(dev, s);
}
static irqreturn_t cb_pcidas_interrupt(int irq, void *d)
@ -1340,7 +1337,6 @@ static irqreturn_t cb_pcidas_interrupt(int irq, void *d)
return IRQ_NONE;
async = s->async;
async->events = 0;
s5933_status = inl(devpriv->s5933_config + AMCC_OP_REG_INTCSR);
@ -1372,10 +1368,8 @@ static irqreturn_t cb_pcidas_interrupt(int irq, void *d)
cfc_write_array_to_buffer(s, devpriv->ai_buffer,
num_samples * sizeof(short));
devpriv->count -= num_samples;
if (async->cmd.stop_src == TRIG_COUNT && devpriv->count == 0) {
if (async->cmd.stop_src == TRIG_COUNT && devpriv->count == 0)
async->events |= COMEDI_CB_EOA;
cb_pcidas_cancel(dev, s);
}
/* clear half-full interrupt latch */
spin_lock_irqsave(&dev->spinlock, flags);
outw(devpriv->adc_fifo_bits | INT,
@ -1392,7 +1386,6 @@ static irqreturn_t cb_pcidas_interrupt(int irq, void *d)
if (async->cmd.stop_src == TRIG_COUNT &&
--devpriv->count == 0) {
/* end of acquisition */
cb_pcidas_cancel(dev, s);
async->events |= COMEDI_CB_EOA;
break;
}
@ -1419,11 +1412,10 @@ static irqreturn_t cb_pcidas_interrupt(int irq, void *d)
outw(devpriv->adc_fifo_bits | LADFUL,
devpriv->control_status + INT_ADCFIFO);
spin_unlock_irqrestore(&dev->spinlock, flags);
cb_pcidas_cancel(dev, s);
async->events |= COMEDI_CB_EOA | COMEDI_CB_ERROR;
}
comedi_event(dev, s);
cfc_handle_events(dev, s);
return IRQ_HANDLED;
}