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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:49:45 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:49:45 +0000 |
commit | 2c3c1048746a4622d8c89a29670120dc8fab93c4 (patch) | |
tree | 848558de17fb3008cdf4d861b01ac7781903ce39 /include/linux/i2c-algo-pcf.h | |
parent | Initial commit. (diff) | |
download | linux-2c3c1048746a4622d8c89a29670120dc8fab93c4.tar.xz linux-2c3c1048746a4622d8c89a29670120dc8fab93c4.zip |
Adding upstream version 6.1.76.upstream/6.1.76
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'include/linux/i2c-algo-pcf.h')
-rw-r--r-- | include/linux/i2c-algo-pcf.h | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/include/linux/i2c-algo-pcf.h b/include/linux/i2c-algo-pcf.h new file mode 100644 index 000000000..696e7de83 --- /dev/null +++ b/include/linux/i2c-algo-pcf.h @@ -0,0 +1,37 @@ +/* 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 */ |