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49 lines
1.9 KiB
49 lines
1.9 KiB
/* ------------------------------------------------------------------------- */ |
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/* adap-pcf.h i2c driver algorithms for PCF8584 adapters */ |
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/* ------------------------------------------------------------------------- */ |
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/* Copyright (C) 1995-97 Simon G. Vogl |
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1998-99 Hans Berglund |
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This program is free software; you can redistribute it and/or modify |
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it under the terms of the GNU General Public License as published by |
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the Free Software Foundation; either version 2 of the License, or |
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(at your option) any later version. |
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This program is distributed in the hope that it will be useful, |
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but WITHOUT ANY WARRANTY; without even the implied warranty of |
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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GNU General Public License for more details. |
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You should have received a copy of the GNU General Public License |
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along with this program; if not, write to the Free Software |
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Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, |
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MA 02110-1301 USA. */ |
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/* ------------------------------------------------------------------------- */ |
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/* With some changes from Kyösti Mälkki <[email protected]> and even |
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Frodo Looijaard <[email protected]> */ |
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#ifndef _LINUX_I2C_ALGO_PCF_H |
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#define _LINUX_I2C_ALGO_PCF_H |
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struct i2c_algo_pcf_data { |
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void *data; /* private data for lolevel routines */ |
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void (*setpcf) (void *data, int ctl, int val); |
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int (*getpcf) (void *data, int ctl); |
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int (*getown) (void *data); |
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int (*getclock) (void *data); |
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void (*waitforpin) (void *data); |
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void (*xfer_begin) (void *data); |
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void (*xfer_end) (void *data); |
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/* Multi-master lost arbitration back-off delay (msecs) |
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* This should be set by the bus adapter or knowledgable client |
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* if bus is multi-mastered, else zero |
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*/ |
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unsigned long lab_mdelay; |
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}; |
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int i2c_pcf_add_bus(struct i2c_adapter *); |
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#endif /* _LINUX_I2C_ALGO_PCF_H */
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