kernel/drivers/staging/comedi/drivers/ni_labpc_isadma.h

   1 /*
   2  * ni_labpc ISA DMA support.
   3 */
   4
   5 #ifndef _NI_LABPC_ISADMA_H
   6 #define _NI_LABPC_ISADMA_H
   7
   8 #if IS_ENABLED(CONFIG_COMEDI_NI_LABPC_ISADMA)
   9
  10 void labpc_init_dma_chan(struct comedi_device *dev, unsigned int dma_chan);
  11 void labpc_free_dma_chan(struct comedi_device *dev);
  12 void labpc_setup_dma(struct comedi_device *dev, struct comedi_subdevice *s);
  13 void labpc_drain_dma(struct comedi_device *dev);
  14 void labpc_handle_dma_status(struct comedi_device *dev);
  15
  16 #else
  17
  18 static inline void labpc_init_dma_chan(struct comedi_device *dev,
  19                                        unsigned int dma_chan)
  20 {
  21 }
  22
  23 static inline void labpc_free_dma_chan(struct comedi_device *dev)
  24 {
  25 }
  26
  27 static inline void labpc_setup_dma(struct comedi_device *dev,
  28                                    struct comedi_subdevice *s)
  29 {
  30 }
  31
  32 static inline void labpc_drain_dma(struct comedi_device *dev)
  33 {
  34 }
  35
  36 static inline void labpc_handle_dma_status(struct comedi_device *dev)
  37 {
  38 }
  39
  40 #endif
  41
  42 #endif /* _NI_LABPC_ISADMA_H */