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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 <[email protected]> and even
- Frodo Looijaard <[email protected]> */
- #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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