xref: /openbmc/linux/drivers/comedi/drivers/das08.h (revision 8be98d2f2a0a262f8bf8a0bc1fdf522b3c7aab17)
1  /* SPDX-License-Identifier: GPL-2.0+ */
2  /*
3   * das08.h
4   *
5   * Header for common DAS08 support (used by ISA/PCI/PCMCIA drivers)
6   *
7   * Copyright (C) 2003 Frank Mori Hess <fmhess@users.sourceforge.net>
8   */
9  
10  #ifndef _DAS08_H
11  #define _DAS08_H
12  
13  #include <linux/types.h>
14  
15  struct comedi_device;
16  
17  /* different ways ai data is encoded in first two registers */
18  enum das08_ai_encoding { das08_encode12, das08_encode16, das08_pcm_encode12 };
19  /* types of ai range table used by different boards */
20  enum das08_lrange {
21  	das08_pg_none, das08_bipolar5, das08_pgh, das08_pgl, das08_pgm
22  };
23  
24  struct das08_board_struct {
25  	const char *name;
26  	bool is_jr;		/* true for 'JR' boards */
27  	unsigned int ai_nbits;
28  	enum das08_lrange ai_pg;
29  	enum das08_ai_encoding ai_encoding;
30  	unsigned int ao_nbits;
31  	unsigned int di_nchan;
32  	unsigned int do_nchan;
33  	unsigned int i8255_offset;
34  	unsigned int i8254_offset;
35  	unsigned int iosize;	/* number of ioports used */
36  };
37  
38  struct das08_private_struct {
39  	/* bits for do/mux register on boards without separate do register */
40  	unsigned int do_mux_bits;
41  	const unsigned int *pg_gainlist;
42  };
43  
44  int das08_common_attach(struct comedi_device *dev, unsigned long iobase);
45  
46  #endif /* _DAS08_H */
47