projects / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 1da177e4 LT |
1 | /* ------------------------------------------------------------------------- */ |
| 2 | /* adap-pcf.h i2c driver algorithms for PCF8584 adapters */ | |
| 3 | /* ------------------------------------------------------------------------- */ | |
| 4 | /* Copyright (C) 1995-97 Simon G. Vogl | |
| 5 | 1998-99 Hans Berglund | |
| 6 | ||
| 7 | This program is free software; you can redistribute it and/or modify | |
| 8 | it under the terms of the GNU General Public License as published by | |
| 9 | the Free Software Foundation; either version 2 of the License, or | |
| 10 | (at your option) any later version. | |
| 11 | ||
| 12 | This program is distributed in the hope that it will be useful, | |
| 13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 15 | GNU General Public License for more details. | |
| 16 | ||
| 17 | You should have received a copy of the GNU General Public License | |
| 18 | along with this program; if not, write to the Free Software | |
| 19 | Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ | |
| 20 | /* ------------------------------------------------------------------------- */ | |
| 21 | ||
| 121e70b6 | 22 | /* With some changes from Kyösti Mälkki <[email protected]> and even |
| 1da177e4 LT |
23 | Frodo Looijaard <[email protected]> */ |
| 24 | ||
| 1da177e4 LT |
25 | #ifndef _LINUX_I2C_ALGO_PCF_H |
| 26 | #define _LINUX_I2C_ALGO_PCF_H | |
| 27 | ||
| 28 | struct i2c_algo_pcf_data { | |
| 29 | void *data; /* private data for lolevel routines */ | |
| 30 | void (*setpcf) (void *data, int ctl, int val); | |
| 31 | int (*getpcf) (void *data, int ctl); | |
| 32 | int (*getown) (void *data); | |
| 33 | int (*getclock) (void *data); | |
| 08e5338d | 34 | void (*waitforpin) (void *data); |
| 1da177e4 | 35 | |
| 30091404 DM |
36 | void (*xfer_begin) (void *data); |
| 37 | void (*xfer_end) (void *data); | |
| 38 | ||
| 0573d11b EB |
39 | /* Multi-master lost arbitration back-off delay (msecs) |
| 40 | * This should be set by the bus adapter or knowledgable client | |
| 41 | * if bus is multi-mastered, else zero | |
| 42 | */ | |
| 43 | unsigned long lab_mdelay; | |
| 1da177e4 LT |
44 | }; |
| 45 | ||
| 1da177e4 | 46 | int i2c_pcf_add_bus(struct i2c_adapter *); |
| 1da177e4 LT |
47 | |
| 48 | #endif /* _LINUX_I2C_ALGO_PCF_H */ |