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 
labpc_init_dma_chan(struct comedi_device * dev,unsigned int dma_chan)18 static inline void labpc_init_dma_chan(struct comedi_device *dev,
19 				       unsigned int dma_chan)
20 {
21 }
22 
labpc_free_dma_chan(struct comedi_device * dev)23 static inline void labpc_free_dma_chan(struct comedi_device *dev)
24 {
25 }
26 
labpc_setup_dma(struct comedi_device * dev,struct comedi_subdevice * s)27 static inline void labpc_setup_dma(struct comedi_device *dev,
28 				   struct comedi_subdevice *s)
29 {
30 }
31 
labpc_drain_dma(struct comedi_device * dev)32 static inline void labpc_drain_dma(struct comedi_device *dev)
33 {
34 }
35 
labpc_handle_dma_status(struct comedi_device * dev)36 static inline void labpc_handle_dma_status(struct comedi_device *dev)
37 {
38 }
39 
40 #endif
41 
42 #endif /* _NI_LABPC_ISADMA_H */
43