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 *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); 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 * 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); 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 */ 74