projects / linux-block.git / blame
| Commit | Line | Data |
|---|---|---|
| 16216333 | 1 | /* SPDX-License-Identifier: GPL-2.0-or-later */ |
| 1da177e4 LT |
2 | /* ------------------------------------------------------------------------- */ |
| 3 | /* adap-pcf.h i2c driver algorithms for PCF8584 adapters */ | |
| 4 | /* ------------------------------------------------------------------------- */ | |
| 5 | /* Copyright (C) 1995-97 Simon G. Vogl | |
| 6 | 1998-99 Hans Berglund | |
| 7 | ||
| 16216333 | 8 | */ |
| 1da177e4 LT |
9 | /* ------------------------------------------------------------------------- */ |
| 10 | ||
| 121e70b6 | 11 | /* With some changes from Kyösti Mälkki <kmalkki@cc.hut.fi> and even |
| 1da177e4 LT |
12 | Frodo Looijaard <frodol@dds.nl> */ |
| 13 | ||
| 1da177e4 LT |
14 | #ifndef _LINUX_I2C_ALGO_PCF_H |
| 15 | #define _LINUX_I2C_ALGO_PCF_H | |
| 16 | ||
| 17 | struct i2c_algo_pcf_data { | |
| 18 | void *data; /* private data for lolevel routines */ | |
| 19 | void (*setpcf) (void *data, int ctl, int val); | |
| 20 | int (*getpcf) (void *data, int ctl); | |
| 21 | int (*getown) (void *data); | |
| 22 | int (*getclock) (void *data); | |
| 08e5338d | 23 | void (*waitforpin) (void *data); |
| 1da177e4 | 24 | |
| 30091404 DM |
25 | void (*xfer_begin) (void *data); |
| 26 | void (*xfer_end) (void *data); | |
| 27 | ||
| 0573d11b EB |
28 | /* Multi-master lost arbitration back-off delay (msecs) |
| 29 | * This should be set by the bus adapter or knowledgable client | |
| 30 | * if bus is multi-mastered, else zero | |
| 31 | */ | |
| 32 | unsigned long lab_mdelay; | |
| 1da177e4 LT |
33 | }; |
| 34 | ||
| 1da177e4 | 35 | int i2c_pcf_add_bus(struct i2c_adapter *); |
| 1da177e4 LT |
36 | |
| 37 | #endif /* _LINUX_I2C_ALGO_PCF_H */ |