/* 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 */