1/*
2 * ni_labpc ISA DMA support.
3*/
4
5#ifndef _NI_LABPC_ISADMA_H
6#define _NI_LABPC_ISADMA_H
7
8#define NI_LABPC_HAVE_ISA_DMA	IS_ENABLED(CONFIG_COMEDI_NI_LABPC_ISADMA)
9
10#if NI_LABPC_HAVE_ISA_DMA
11
12static inline bool labpc_have_dma_chan(struct comedi_device *dev)
13{
14	struct labpc_private *devpriv = dev->private;
15
16	return (bool)devpriv->dma_chan;
17}
18
19int labpc_init_dma_chan(struct comedi_device *dev, unsigned int dma_chan);
20void labpc_free_dma_chan(struct comedi_device *dev);
21void labpc_setup_dma(struct comedi_device *dev, struct comedi_subdevice *s);
22void labpc_drain_dma(struct comedi_device *dev);
23void labpc_handle_dma_status(struct comedi_device *dev);
24
25#else
26
27static inline bool labpc_have_dma_chan(struct comedi_device *dev)
28{
29	return false;
30}
31
32static inline int labpc_init_dma_chan(struct comedi_device *dev,
33				      unsigned int dma_chan)
34{
35	return -ENOTSUPP;
36}
37
38static inline void labpc_free_dma_chan(struct comedi_device *dev)
39{
40}
41
42static inline void labpc_setup_dma(struct comedi_device *dev,
43				   struct comedi_subdevice *s)
44{
45}
46
47static inline void labpc_drain_dma(struct comedi_device *dev)
48{
49}
50
51static inline void labpc_handle_dma_status(struct comedi_device *dev)
52{
53}
54
55#endif
56
57#endif /* _NI_LABPC_ISADMA_H */
58