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staging: comedi: amplc_pci224: use comedi_buf_read_samples()

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Use the new generic method to read the analog output samples from the async
buffer.

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 2014-10-22 14:36:35 -07:00 committed by Greg Kroah-Hartman
parent 4455d7c351
commit bcdbe8848e
1 changed files with 3 additions and 4 deletions
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7
drivers/staging/comedi/drivers/amplc_pci224.c
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@ -514,14 +514,13 @@ static void pci224_ao_handle_fifo(struct comedi_device *dev,
{
struct pci224_private *devpriv = dev->private;
struct comedi_cmd *cmd = &s->async->cmd;
unsigned int bytes_per_scan = comedi_bytes_per_scan(s);
unsigned int num_scans;
unsigned int room;
unsigned short dacstat;
unsigned int i, n;
/* Determine number of scans available in buffer. */
num_scans = comedi_buf_read_n_available(s) / bytes_per_scan;
num_scans = comedi_buf_read_n_available(s) / comedi_bytes_per_scan(s);
if (cmd->stop_src == TRIG_COUNT) {
/* Fixed number of scans. */
if (num_scans > devpriv->ao_stop_count)
@ -568,8 +567,8 @@ static void pci224_ao_handle_fifo(struct comedi_device *dev,
/* Process scans. */
for (n = 0; n < num_scans; n++) {
cfc_read_array_from_buffer(s, &devpriv->ao_scan_vals[0],
bytes_per_scan);
comedi_buf_read_samples(s, &devpriv->ao_scan_vals[0],
cmd->chanlist_len);
for (i = 0; i < cmd->chanlist_len; i++) {
outw(devpriv->ao_scan_vals[devpriv->ao_scan_order[i]],
dev->iobase + PCI224_DACDATA);