1 /* SPDX-License-Identifier: GPL-2.0 */
2 #ifndef _COMEDI_INTERNAL_H
3 #define _COMEDI_INTERNAL_H
5 #include <linux/compiler.h>
6 #include <linux/types.h>
9 * various internal comedi stuff
12 struct comedi_buf_map
;
13 struct comedi_devconfig
;
16 struct comedi_rangeinfo
;
17 struct comedi_subdevice
;
20 int do_rangeinfo_ioctl(struct comedi_device
*dev
,
21 struct comedi_rangeinfo
*it
);
22 struct comedi_device
*comedi_alloc_board_minor(struct device
*hardware_device
);
23 void comedi_release_hardware_device(struct device
*hardware_device
);
24 int comedi_alloc_subdevice_minor(struct comedi_subdevice
*s
);
25 void comedi_free_subdevice_minor(struct comedi_subdevice
*s
);
27 int comedi_buf_alloc(struct comedi_device
*dev
, struct comedi_subdevice
*s
,
28 unsigned long new_size
);
29 void comedi_buf_reset(struct comedi_subdevice
*s
);
30 bool comedi_buf_is_mmapped(struct comedi_subdevice
*s
);
31 void comedi_buf_map_get(struct comedi_buf_map
*bm
);
32 int comedi_buf_map_put(struct comedi_buf_map
*bm
);
33 int comedi_buf_map_access(struct comedi_buf_map
*bm
, unsigned long offset
,
34 void *buf
, int len
, int write
);
35 struct comedi_buf_map
*
36 comedi_buf_map_from_subdev_get(struct comedi_subdevice
*s
);
37 unsigned int comedi_buf_write_n_available(struct comedi_subdevice
*s
);
38 unsigned int comedi_buf_write_n_allocated(struct comedi_subdevice
*s
);
39 void comedi_device_cancel_all(struct comedi_device
*dev
);
40 bool comedi_can_auto_free_spriv(struct comedi_subdevice
*s
);
42 extern unsigned int comedi_default_buf_size_kb
;
43 extern unsigned int comedi_default_buf_maxsize_kb
;
47 extern struct comedi_driver
*comedi_drivers
;
48 extern struct mutex comedi_drivers_list_lock
;
50 int insn_inval(struct comedi_device
*dev
, struct comedi_subdevice
*s
,
51 struct comedi_insn
*insn
, unsigned int *data
);
53 void comedi_device_detach(struct comedi_device
*dev
);
54 int comedi_device_attach(struct comedi_device
*dev
,
55 struct comedi_devconfig
*it
);
61 void comedi_proc_init(void);
62 void comedi_proc_cleanup(void);
64 static inline void comedi_proc_init(void)
68 static inline void comedi_proc_cleanup(void)
73 #endif /* _COMEDI_INTERNAL_H */