This member of the private data is replicating what the comedi_async
'cur_chan' member is used for. Use that instead and remove the private
data member.
Signed-off-by: H Hartley Sweeten <hswee...@visionengravers.com>
Cc: Ian Abbott <abbo...@mev.co.uk>
Cc: Greg Kroah-Hartman <gre...@linuxfoundation.org>
---
drivers/staging/comedi/drivers/amplc_pci230.c | 15 ++++-----------
1 file changed, 4 insertions(+), 11 deletions(-)
diff --git a/drivers/staging/comedi/drivers/amplc_pci230.c
b/drivers/staging/comedi/drivers/amplc_pci230.c
index 44c967f..58ec3c2 100644
--- a/drivers/staging/comedi/drivers/amplc_pci230.c
+++ b/drivers/staging/comedi/drivers/amplc_pci230.c
@@ -491,7 +491,6 @@ struct pci230_private {
spinlock_t ao_stop_spinlock; /* Spin lock for stopping AO command */
unsigned long daqio; /* PCI230's DAQ I/O space */
unsigned int ai_scan_count; /* Number of AI scans remaining */
- unsigned int ai_scan_pos; /* Current position within AI scan */
unsigned int ao_scan_count; /* Number of AO scans remaining. */
int intr_cpuid; /* ID of CPU running ISR */
unsigned short hwver; /* Hardware version (for '+' models) */
@@ -1748,13 +1747,13 @@ static void pci230_ai_update_fifo_trigger_level(struct
comedi_device *dev,
unsigned short adccon;
if (cmd->flags & CMDF_WAKE_EOS)
- wake = scanlen - devpriv->ai_scan_pos;
+ wake = scanlen - s->async->cur_chan;
else if (cmd->stop_src != TRIG_COUNT ||
devpriv->ai_scan_count >= PCI230_ADC_FIFOLEVEL_HALFFULL ||
scanlen >= PCI230_ADC_FIFOLEVEL_HALFFULL)
wake = PCI230_ADC_FIFOLEVEL_HALFFULL;
else
- wake = devpriv->ai_scan_count * scanlen - devpriv->ai_scan_pos;
+ wake = devpriv->ai_scan_count * scanlen - s->async->cur_chan;
if (wake >= PCI230_ADC_FIFOLEVEL_HALFFULL) {
triglev = PCI230_ADC_INT_FIFO_HALF;
} else if (wake > 1 && devpriv->hwver > 0) {
@@ -2064,7 +2063,7 @@ static void pci230_handle_ai(struct comedi_device *dev,
scanlen > PCI230_ADC_FIFOLEVEL_HALFFULL) {
todo = PCI230_ADC_FIFOLEVEL_HALFFULL;
} else {
- todo = devpriv->ai_scan_count * scanlen - devpriv->ai_scan_pos;
+ todo = devpriv->ai_scan_count * scanlen - async->cur_chan;
if (todo > PCI230_ADC_FIFOLEVEL_HALFFULL)
todo = PCI230_ADC_FIFOLEVEL_HALFFULL;
}
@@ -2105,13 +2104,8 @@ static void pci230_handle_ai(struct comedi_device *dev,
comedi_buf_write_samples(s, &val, 1);
fifoamount--;
- devpriv->ai_scan_pos++;
- if (devpriv->ai_scan_pos == scanlen) {
- /* End of scan. */
- devpriv->ai_scan_pos = 0;
+ if (async->events & COMEDI_CB_EOS)
devpriv->ai_scan_count--;
- async->events |= COMEDI_CB_EOS;
- }
}
if (cmd->stop_src == TRIG_COUNT && devpriv->ai_scan_count == 0) {
/* End of acquisition. */
@@ -2158,7 +2152,6 @@ static int pci230_ai_cmd(struct comedi_device *dev,
struct comedi_subdevice *s)
return -EBUSY;
devpriv->ai_scan_count = cmd->stop_arg;
- devpriv->ai_scan_pos = 0; /* Position within scan. */
/*
* Steps:
--
2.0.3
_______________________________________________
devel mailing list
de...@linuxdriverproject.org
http://driverdev.linuxdriverproject.org/mailman/listinfo/driverdev-devel
