diff options
| author | Ian Abbott <abbotti@mev.co.uk> | 2013-10-16 14:40:30 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-10-16 12:48:31 -0700 |
| commit | 54d2dd8443d3fda0579ed0e479942c180725dac5 (patch) | |
| tree | 9ac6ce0606ec6b8978a5cd332858287374f92742 /drivers/staging/comedi | |
| parent | 8017c513050735ce6bd637eb5ecc39bbac4a8ffa (diff) | |
| download | linux-54d2dd8443d3fda0579ed0e479942c180725dac5.tar.bz2 | |
staging: comedi: pcl816: sample types are unsigned
Sample values in comedi are generally represented as unsigned values.
Change the "pcl816" module to use unsigned types to handle samples for
consistency.
Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/staging/comedi')
| -rw-r--r-- | drivers/staging/comedi/drivers/pcl816.c | 12 |
1 files changed, 7 insertions, 5 deletions
diff --git a/drivers/staging/comedi/drivers/pcl816.c b/drivers/staging/comedi/drivers/pcl816.c index 2fd9b178e0c6..ab9d2bd26a20 100644 --- a/drivers/staging/comedi/drivers/pcl816.c +++ b/drivers/staging/comedi/drivers/pcl816.c @@ -229,7 +229,7 @@ static irqreturn_t interrupt_pcl816_ai_mode13_int(int irq, void *d) struct comedi_device *dev = d; struct pcl816_private *devpriv = dev->private; struct comedi_subdevice *s = &dev->subdevices[0]; - int low, hi; + unsigned char low, hi; int timeout = 50; /* wait max 50us */ while (timeout--) { @@ -281,7 +281,8 @@ static irqreturn_t interrupt_pcl816_ai_mode13_int(int irq, void *d) analog input dma mode 1 & 3, 816 cards */ static void transfer_from_dma_buf(struct comedi_device *dev, - struct comedi_subdevice *s, short *ptr, + struct comedi_subdevice *s, + unsigned short *ptr, unsigned int bufptr, unsigned int len) { struct pcl816_private *devpriv = dev->private; @@ -324,7 +325,7 @@ static irqreturn_t interrupt_pcl816_ai_mode13_dma(int irq, void *d) struct comedi_subdevice *s = &dev->subdevices[0]; int len, bufptr, this_dma_buf; unsigned long dma_flags; - short *ptr; + unsigned short *ptr; disable_dma(devpriv->dma); this_dma_buf = devpriv->next_dma_buf; @@ -352,7 +353,7 @@ static irqreturn_t interrupt_pcl816_ai_mode13_dma(int irq, void *d) devpriv->dma_runs_to_end--; outb(0, dev->iobase + PCL816_CLRINT); /* clear INT request */ - ptr = (short *)devpriv->dmabuf[this_dma_buf]; + ptr = (unsigned short *)devpriv->dmabuf[this_dma_buf]; len = (devpriv->hwdmasize[0] >> 1) - devpriv->ai_poll_ptr; bufptr = devpriv->ai_poll_ptr; @@ -665,7 +666,8 @@ static int pcl816_ai_poll(struct comedi_device *dev, struct comedi_subdevice *s) } transfer_from_dma_buf(dev, s, - (short *)devpriv->dmabuf[devpriv->next_dma_buf], + (unsigned short *)devpriv->dmabuf[devpriv-> + next_dma_buf], devpriv->ai_poll_ptr, top2); devpriv->ai_poll_ptr = top1; /* new buffer position */ |