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/*
* ni_labpc ISA DMA support.
*/
#ifndef _NI_LABPC_ISADMA_H
#define _NI_LABPC_ISADMA_H
#define NI_LABPC_HAVE_ISA_DMA IS_ENABLED(CONFIG_COMEDI_NI_LABPC_ISADMA)
#if NI_LABPC_HAVE_ISA_DMA
static inline bool labpc_have_dma_chan(struct comedi_device *dev)
{
struct labpc_private *devpriv = dev->private;
return (bool)devpriv->dma_chan;
}
int labpc_init_dma_chan(struct comedi_device *dev, unsigned int dma_chan);
void labpc_free_dma_chan(struct comedi_device *dev);
void labpc_setup_dma(struct comedi_device *dev, struct comedi_subdevice *s);
void labpc_drain_dma(struct comedi_device *dev);
void labpc_handle_dma_status(struct comedi_device *dev);
#else
static inline bool labpc_have_dma_chan(struct comedi_device *dev)
{
return false;
}
static inline int labpc_init_dma_chan(struct comedi_device *dev,
unsigned int dma_chan)
{
return -ENOTSUPP;
}
static inline void labpc_free_dma_chan(struct comedi_device *dev)
{
}
static inline void labpc_setup_dma(struct comedi_device *dev,
struct comedi_subdevice *s)
{
}
static inline void labpc_drain_dma(struct comedi_device *dev)
{
}
static inline void labpc_handle_dma_status(struct comedi_device *dev)
{
}
#endif
#endif /* _NI_LABPC_ISADMA_H */
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