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/* SPDX-License-Identifier: GPL-2.0-or-later */
/* ------------------------------------------------------------------------- */
/* adap-pcf.h i2c driver algorithms for PCF8584 adapters */
/* ------------------------------------------------------------------------- */
/* Copyright (C) 1995-97 Simon G. Vogl
1998-99 Hans Berglund
*/
/* ------------------------------------------------------------------------- */
/* With some changes from Kyösti Mälkki <kmalkki@cc.hut.fi> and even
Frodo Looijaard <frodol@dds.nl> */
#ifndef _LINUX_I2C_ALGO_PCF_H
#define _LINUX_I2C_ALGO_PCF_H
struct i2c_algo_pcf_data {
void *data; /* private data for lolevel routines */
void (*setpcf) (void *data, int ctl, int val);
int (*getpcf) (void *data, int ctl);
int (*getown) (void *data);
int (*getclock) (void *data);
void (*waitforpin) (void *data);
void (*xfer_begin) (void *data);
void (*xfer_end) (void *data);
/* Multi-master lost arbitration back-off delay (msecs)
* This should be set by the bus adapter or knowledgable client
* if bus is multi-mastered, else zero
*/
unsigned long lab_mdelay;
};
int i2c_pcf_add_bus(struct i2c_adapter *);
#endif /* _LINUX_I2C_ALGO_PCF_H */
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