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1/* SPDX-License-Identifier: GPL-2.0 */2#ifndef _COMEDI_INTERNAL_H3#define _COMEDI_INTERNAL_H4 5#include <linux/compiler.h>6#include <linux/types.h>7 8/*9 * various internal comedi stuff10 */11 12struct comedi_buf_map;13struct comedi_devconfig;14struct comedi_device;15struct comedi_insn;16struct comedi_rangeinfo;17struct comedi_subdevice;18struct device;19 20int do_rangeinfo_ioctl(struct comedi_device *dev,21 struct comedi_rangeinfo *it);22struct comedi_device *comedi_alloc_board_minor(struct device *hardware_device);23void comedi_release_hardware_device(struct device *hardware_device);24int comedi_alloc_subdevice_minor(struct comedi_subdevice *s);25void comedi_free_subdevice_minor(struct comedi_subdevice *s);26 27int comedi_buf_alloc(struct comedi_device *dev, struct comedi_subdevice *s,28 unsigned long new_size);29void comedi_buf_reset(struct comedi_subdevice *s);30bool comedi_buf_is_mmapped(struct comedi_subdevice *s);31void comedi_buf_map_get(struct comedi_buf_map *bm);32int comedi_buf_map_put(struct comedi_buf_map *bm);33int comedi_buf_map_access(struct comedi_buf_map *bm, unsigned long offset,34 void *buf, int len, int write);35struct comedi_buf_map *36comedi_buf_map_from_subdev_get(struct comedi_subdevice *s);37unsigned int comedi_buf_write_n_available(struct comedi_subdevice *s);38unsigned int comedi_buf_write_n_allocated(struct comedi_subdevice *s);39void comedi_device_cancel_all(struct comedi_device *dev);40bool comedi_can_auto_free_spriv(struct comedi_subdevice *s);41 42extern unsigned int comedi_default_buf_size_kb;43extern unsigned int comedi_default_buf_maxsize_kb;44 45/* drivers.c */46 47extern struct comedi_driver *comedi_drivers;48extern struct mutex comedi_drivers_list_lock;49 50int insn_inval(struct comedi_device *dev, struct comedi_subdevice *s,51 struct comedi_insn *insn, unsigned int *data);52 53void comedi_device_detach(struct comedi_device *dev);54int comedi_device_attach(struct comedi_device *dev,55 struct comedi_devconfig *it);56 57#ifdef CONFIG_PROC_FS58 59/* proc.c */60 61void comedi_proc_init(void);62void comedi_proc_cleanup(void);63#else64static inline void comedi_proc_init(void)65{66}67 68static inline void comedi_proc_cleanup(void)69{70}71#endif72 73#endif /* _COMEDI_INTERNAL_H */74