From d1c87ceb441c3328cc1d0c18e07f5aeaa446306f Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Wed, 5 Nov 2014 10:20:53 -0700 Subject: [PATCH] staging: comedi: addi_apci_2032: use comedi_async 'scans_done' to detect EOA Remove the private data member 'stop_count' and use the comedi_async 'scans_done' member to detect the end-of-acquisition. Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman --- drivers/staging/comedi/drivers/addi_apci_2032.c | 17 +++++------------ 1 file changed, 5 insertions(+), 12 deletions(-) diff --git a/drivers/staging/comedi/drivers/addi_apci_2032.c b/drivers/staging/comedi/drivers/addi_apci_2032.c index fb20c5e..eebf4f1 100644 --- a/drivers/staging/comedi/drivers/addi_apci_2032.c +++ b/drivers/staging/comedi/drivers/addi_apci_2032.c @@ -47,7 +47,6 @@ struct apci2032_int_private { spinlock_t spinlock; - unsigned int stop_count; bool active; unsigned char enabled_isns; }; @@ -148,7 +147,6 @@ static int apci2032_int_cmd(struct comedi_device *dev, spin_lock_irqsave(&subpriv->spinlock, flags); subpriv->enabled_isns = enabled_isns; - subpriv->stop_count = cmd->stop_arg; subpriv->active = true; outl(enabled_isns, dev->iobase + APCI2032_INT_CTRL_REG); @@ -211,16 +209,11 @@ static irqreturn_t apci2032_interrupt(int irq, void *d) bits |= (1 << i); } - if (comedi_buf_write_samples(s, &bits, 1)) { - if (cmd->stop_src == TRIG_COUNT && - subpriv->stop_count > 0) { - subpriv->stop_count--; - if (subpriv->stop_count == 0) { - /* end of acquisition */ - s->async->events |= COMEDI_CB_EOA; - } - } - } + comedi_buf_write_samples(s, &bits, 1); + + if (cmd->stop_src == TRIG_COUNT && + s->async->scans_done >= cmd->stop_arg) + s->async->events |= COMEDI_CB_EOA; } spin_unlock(&subpriv->spinlock); -- 2.7.4