diff options
Diffstat (limited to 'kernel/drivers/staging/comedi/drivers/ni_labpc_isadma.h')
| -rw-r--r-- | kernel/drivers/staging/comedi/drivers/ni_labpc_isadma.h | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/kernel/drivers/staging/comedi/drivers/ni_labpc_isadma.h b/kernel/drivers/staging/comedi/drivers/ni_labpc_isadma.h new file mode 100644 index 000000000..b8a1b0ee6 --- /dev/null +++ b/kernel/drivers/staging/comedi/drivers/ni_labpc_isadma.h @@ -0,0 +1,42 @@ +/* + * ni_labpc ISA DMA support. +*/ + +#ifndef _NI_LABPC_ISADMA_H +#define _NI_LABPC_ISADMA_H + +#if IS_ENABLED(CONFIG_COMEDI_NI_LABPC_ISADMA) + +void 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 void labpc_init_dma_chan(struct comedi_device *dev, + unsigned int dma_chan) +{ +} + +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 */ |