comedi_internal.h (2200B)
1/* SPDX-License-Identifier: GPL-2.0 */ 2#ifndef _COMEDI_INTERNAL_H 3#define _COMEDI_INTERNAL_H 4 5#include <linux/compiler.h> 6#include <linux/types.h> 7 8/* 9 * various internal comedi stuff 10 */ 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_FS 58 59/* proc.c */ 60 61void comedi_proc_init(void); 62void comedi_proc_cleanup(void); 63#else 64static inline void comedi_proc_init(void) 65{ 66} 67 68static inline void comedi_proc_cleanup(void) 69{ 70} 71#endif 72 73#endif /* _COMEDI_INTERNAL_H */