| 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
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| 2 | #ifndef _COMEDI_INTERNAL_H |
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| 3 | #define _COMEDI_INTERNAL_H |
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| 4 | |
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| 5 | #include <linux/compiler.h> |
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| 6 | #include <linux/types.h> |
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| 7 | |
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| 8 | /* |
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| 9 | * various internal comedi stuff |
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| 10 | */ |
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| 11 | |
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| 12 | struct comedi_buf_map; |
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| 13 | struct comedi_devconfig; |
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| 14 | struct comedi_device; |
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| 15 | struct comedi_insn; |
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| 16 | struct comedi_rangeinfo; |
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| 17 | struct comedi_subdevice; |
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| 18 | struct device; |
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| 19 | |
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| 20 | int do_rangeinfo_ioctl(struct comedi_device *dev, |
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| 21 | struct comedi_rangeinfo *it); |
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| 22 | struct comedi_device *comedi_alloc_board_minor(struct device *hardware_device); |
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| 23 | void comedi_release_hardware_device(struct device *hardware_device); |
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| 24 | int comedi_alloc_subdevice_minor(struct comedi_subdevice *s); |
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| 25 | void comedi_free_subdevice_minor(struct comedi_subdevice *s); |
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| 26 | |
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| 27 | int comedi_buf_alloc(struct comedi_device *dev, struct comedi_subdevice *s, |
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| 28 | unsigned long new_size); |
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| 29 | void comedi_buf_reset(struct comedi_subdevice *s); |
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| 30 | bool comedi_buf_is_mmapped(struct comedi_subdevice *s); |
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| 31 | void comedi_buf_map_get(struct comedi_buf_map *bm); |
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| 32 | int comedi_buf_map_put(struct comedi_buf_map *bm); |
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| 33 | int comedi_buf_map_access(struct comedi_buf_map *bm, unsigned long offset, |
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| 34 | void *buf, int len, int write); |
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| 35 | struct comedi_buf_map * |
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| 36 | comedi_buf_map_from_subdev_get(struct comedi_subdevice *s); |
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| 37 | unsigned int comedi_buf_write_n_available(struct comedi_subdevice *s); |
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| 38 | unsigned int comedi_buf_write_n_allocated(struct comedi_subdevice *s); |
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| 39 | void comedi_device_cancel_all(struct comedi_device *dev); |
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| 40 | bool comedi_can_auto_free_spriv(struct comedi_subdevice *s); |
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| 41 | |
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| 42 | extern unsigned int comedi_default_buf_size_kb; |
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| 43 | extern unsigned int comedi_default_buf_maxsize_kb; |
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| 44 | |
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| 45 | /* drivers.c */ |
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| 46 | |
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| 47 | extern struct comedi_driver *comedi_drivers; |
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| 48 | extern struct mutex comedi_drivers_list_lock; |
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| 49 | |
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| 50 | int insn_inval(struct comedi_device *dev, struct comedi_subdevice *s, |
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| 51 | struct comedi_insn *insn, unsigned int *data); |
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| 52 | |
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| 53 | void comedi_device_detach(struct comedi_device *dev); |
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| 54 | int comedi_device_attach(struct comedi_device *dev, |
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| 55 | struct comedi_devconfig *it); |
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| 56 | |
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| 57 | #ifdef CONFIG_PROC_FS |
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| 58 | |
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| 59 | /* proc.c */ |
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| 60 | |
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| 61 | void comedi_proc_init(void); |
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| 62 | void comedi_proc_cleanup(void); |
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| 63 | #else |
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| 64 | static inline void comedi_proc_init(void) |
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| 65 | { |
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| 66 | } |
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| 67 | |
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| 68 | static inline void comedi_proc_cleanup(void) |
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| 69 | { |
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| 70 | } |
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| 71 | #endif |
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| 72 | |
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| 73 | #endif /* _COMEDI_INTERNAL_H */ |
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| 74 | |
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