1 /* SPDX-License-Identifier: GPL-2.0 */
2 /*
3  * ni_labpc ISA DMA support.
4  */
5 
6 #ifndef _NI_LABPC_ISADMA_H
7 #define _NI_LABPC_ISADMA_H
8 
9 #if IS_ENABLED(CONFIG_COMEDI_NI_LABPC_ISADMA)
10 
11 void labpc_init_dma_chan(struct comedi_device *dev, unsigned int dma_chan);
12 void labpc_free_dma_chan(struct comedi_device *dev);
13 void labpc_setup_dma(struct comedi_device *dev, struct comedi_subdevice *s);
14 void labpc_drain_dma(struct comedi_device *dev);
15 void labpc_handle_dma_status(struct comedi_device *dev);
16 
17 #else
18 
labpc_init_dma_chan(struct comedi_device * dev,unsigned int dma_chan)19 static inline void labpc_init_dma_chan(struct comedi_device *dev,
20 				       unsigned int dma_chan)
21 {
22 }
23 
labpc_free_dma_chan(struct comedi_device * dev)24 static inline void labpc_free_dma_chan(struct comedi_device *dev)
25 {
26 }
27 
labpc_setup_dma(struct comedi_device * dev,struct comedi_subdevice * s)28 static inline void labpc_setup_dma(struct comedi_device *dev,
29 				   struct comedi_subdevice *s)
30 {
31 }
32 
labpc_drain_dma(struct comedi_device * dev)33 static inline void labpc_drain_dma(struct comedi_device *dev)
34 {
35 }
36 
labpc_handle_dma_status(struct comedi_device * dev)37 static inline void labpc_handle_dma_status(struct comedi_device *dev)
38 {
39 }
40 
41 #endif
42 
43 #endif /* _NI_LABPC_ISADMA_H */
44