LXR linux/drivers/staging/comedi/comedi

   1#ifndef _COMEDI_INTERNAL_H
   2#define _COMEDI_INTERNAL_H
   3
   4#include <linux/compiler.h>
   5#include <linux/types.h>
   6
   7/*
   8 * various internal comedi stuff
   9 */
  10
  11struct comedi_buf_map;
  12struct comedi_devconfig;
  13struct comedi_device;
  14struct comedi_insn;
  15struct comedi_rangeinfo;
  16struct comedi_subdevice;
  17struct device;
  18
  19int do_rangeinfo_ioctl(struct comedi_device *dev,
  20                       struct comedi_rangeinfo __user *arg);
  21struct comedi_device *comedi_alloc_board_minor(struct device *hardware_device);
  22void comedi_release_hardware_device(struct device *hardware_device);
  23int comedi_alloc_subdevice_minor(struct comedi_subdevice *s);
  24void comedi_free_subdevice_minor(struct comedi_subdevice *s);
  25
  26int comedi_buf_alloc(struct comedi_device *dev, struct comedi_subdevice *s,
  27                     unsigned long new_size);
  28void comedi_buf_reset(struct comedi_subdevice *s);
  29bool comedi_buf_is_mmapped(struct comedi_subdevice *s);
  30void comedi_buf_map_get(struct comedi_buf_map *bm);
  31int comedi_buf_map_put(struct comedi_buf_map *bm);
  32struct comedi_buf_map *comedi_buf_map_from_subdev_get(
  33                struct comedi_subdevice *s);
  34unsigned int comedi_buf_write_n_available(struct comedi_subdevice *s);
  35unsigned int comedi_buf_write_n_allocated(struct comedi_subdevice *s);
  36void comedi_device_cancel_all(struct comedi_device *dev);
  37bool comedi_can_auto_free_spriv(struct comedi_subdevice *s);
  38
  39extern unsigned int comedi_default_buf_size_kb;
  40extern unsigned int comedi_default_buf_maxsize_kb;
  41
  42/* drivers.c */
  43
  44extern struct comedi_driver *comedi_drivers;
  45extern struct mutex comedi_drivers_list_lock;
  46
  47int insn_inval(struct comedi_device *, struct comedi_subdevice *,
  48               struct comedi_insn *, unsigned int *);
  49
  50void comedi_device_detach(struct comedi_device *);
  51int comedi_device_attach(struct comedi_device *, struct comedi_devconfig *);
  52
  53#ifdef CONFIG_PROC_FS
  54
  55/* proc.c */
  56
  57void comedi_proc_init(void);
  58void comedi_proc_cleanup(void);
  59#else
  60static inline void comedi_proc_init(void)
  61{
  62}
  63
  64static inline void comedi_proc_cleanup(void)
  65{
  66}
  67#endif
  68
  69#endif /* _COMEDI_INTERNAL_H */
  70