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torvalds
GitHub Repository: torvalds/linux
 Path: blob/master/drivers/gpib/include/gpib_proto.h
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/* SPDX-License-Identifier: GPL-2.0 */

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#ifndef GPIB_PROTO_INCLUDED

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#define GPIB_PROTO_INCLUDED

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#include <linux/fs.h>

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int ibopen(struct inode *inode, struct file *filep);

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int ibclose(struct inode *inode, struct file *file);

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long ibioctl(struct file *filep, unsigned int cmd, unsigned long arg);

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void os_start_timer(struct gpib_board *board, unsigned int usec_timeout);

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void os_remove_timer(struct gpib_board *board);

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void init_gpib_board(struct gpib_board *board);

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static inline unsigned long usec_to_jiffies(unsigned int usec)

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{

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	unsigned long usec_per_jiffy = 1000000 / HZ;

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	return 1 + (usec + usec_per_jiffy - 1) / usec_per_jiffy;

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};

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int serial_poll_all(struct gpib_board *board, unsigned int usec_timeout);

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void init_gpib_descriptor(struct gpib_descriptor *desc);

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int dvrsp(struct gpib_board *board, unsigned int pad, int sad,

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	  unsigned int usec_timeout, u8 *result);

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int ibcac(struct gpib_board *board, int sync, int fallback_to_async);

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int ibcmd(struct gpib_board *board, u8 *buf, size_t length, size_t *bytes_written);

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int ibgts(struct gpib_board *board);

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int ibonline(struct gpib_board *board);

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int iboffline(struct gpib_board *board);

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int iblines(const struct gpib_board *board, short *lines);

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int ibrd(struct gpib_board *board, u8 *buf, size_t length, int *end_flag, size_t *bytes_read);

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int ibrpp(struct gpib_board *board, u8 *buf);

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int ibrsv2(struct gpib_board *board, u8 status_byte, int new_reason_for_service);

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int ibrsc(struct gpib_board *board, int request_control);

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int ibsic(struct gpib_board *board, unsigned int usec_duration);

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int ibsre(struct gpib_board *board, int enable);

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int ibpad(struct gpib_board *board, unsigned int addr);

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int ibsad(struct gpib_board *board, int addr);

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int ibeos(struct gpib_board *board, int eos, int eosflags);

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int ibwait(struct gpib_board *board, int wait_mask, int clear_mask, int set_mask,

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	   int *status, unsigned long usec_timeout, struct gpib_descriptor *desc);

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int ibwrt(struct gpib_board *board, u8 *buf, size_t cnt, int send_eoi, size_t *bytes_written);

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int ibstatus(struct gpib_board *board);

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int general_ibstatus(struct gpib_board *board, const struct gpib_status_queue *device,

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		     int clear_mask, int set_mask, struct gpib_descriptor *desc);

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int io_timed_out(struct gpib_board *board);

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int ibppc(struct gpib_board *board, u8 configuration);

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#endif /* GPIB_PROTO_INCLUDED */

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