root/drivers/staging/comedi/comedi_internal.h

INCLUDED FROM

DEFINITIONS

1. comedi_proc_init
2. comedi_proc_cleanup

   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 
  12 struct comedi_buf_map;
  13 struct comedi_devconfig;
  14 struct comedi_device;
  15 struct comedi_insn;
  16 struct comedi_rangeinfo;
  17 struct comedi_subdevice;
  18 struct device;
  19 
  20 int do_rangeinfo_ioctl(struct comedi_device *dev,
  21                        struct comedi_rangeinfo __user *arg);
  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);
  26 
  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 *comedi_buf_map_from_subdev_get(
  36                 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);
  41 
  42 extern unsigned int comedi_default_buf_size_kb;
  43 extern unsigned int comedi_default_buf_maxsize_kb;
  44 
  45 /* drivers.c */
  46 
  47 extern struct comedi_driver *comedi_drivers;
  48 extern struct mutex comedi_drivers_list_lock;
  49 
  50 int insn_inval(struct comedi_device *dev, struct comedi_subdevice *s,
  51                struct comedi_insn *insn, unsigned int *data);
  52 
  53 void comedi_device_detach(struct comedi_device *dev);
  54 int comedi_device_attach(struct comedi_device *dev,
  55                          struct comedi_devconfig *it);
  56 
  57 #ifdef CONFIG_PROC_FS
  58 
  59 /* proc.c */
  60 
  61 void comedi_proc_init(void);
  62 void comedi_proc_cleanup(void);
  63 #else
  64 static inline void comedi_proc_init(void)
  65 {
  66 }
  67 
  68 static inline void comedi_proc_cleanup(void)
  69 {
  70 }
  71 #endif
  72 
  73 #endif /* _COMEDI_INTERNAL_H */