diff options
| author | Samuel Thibault <samuel.thibault@ens-lyon.org> | 2013-07-27 22:11:24 +0000 |
|---|---|---|
| committer | Samuel Thibault <samuel.thibault@ens-lyon.org> | 2013-07-27 22:11:24 +0000 |
| commit | ce6a36c7f7c88e7ca0fda816f9282237bb86829d (patch) | |
| tree | 611bf9beb2281d34260ca87fc189a0ddc864819a /libdde-linux26/libdde_linux26/contrib/include/linux/i2c-algo-bit.h | |
| parent | bb9d6cd642f9189b8102d566c8c46a6de1d2c5f7 (diff) | |
| parent | 4fbe7358c7747a9165f776eb19addbb9baf7def2 (diff) | |
Merge branch 'upstream-merged'
Diffstat (limited to 'libdde-linux26/libdde_linux26/contrib/include/linux/i2c-algo-bit.h')
| -rw-r--r-- | libdde-linux26/libdde_linux26/contrib/include/linux/i2c-algo-bit.h | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/libdde-linux26/libdde_linux26/contrib/include/linux/i2c-algo-bit.h b/libdde-linux26/libdde_linux26/contrib/include/linux/i2c-algo-bit.h new file mode 100644 index 00000000..111334f5 --- /dev/null +++ b/libdde-linux26/libdde_linux26/contrib/include/linux/i2c-algo-bit.h @@ -0,0 +1,51 @@ +/* ------------------------------------------------------------------------- */ +/* i2c-algo-bit.h i2c driver algorithms for bit-shift adapters */ +/* ------------------------------------------------------------------------- */ +/* Copyright (C) 1995-99 Simon G. Vogl + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software + Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ +/* ------------------------------------------------------------------------- */ + +/* With some changes from Kyösti Mälkki <kmalkki@cc.hut.fi> and even + Frodo Looijaard <frodol@dds.nl> */ + +#ifndef _LINUX_I2C_ALGO_BIT_H +#define _LINUX_I2C_ALGO_BIT_H + +/* --- Defines for bit-adapters --------------------------------------- */ +/* + * This struct contains the hw-dependent functions of bit-style adapters to + * manipulate the line states, and to init any hw-specific features. This is + * only used if you have more than one hw-type of adapter running. + */ +struct i2c_algo_bit_data { + void *data; /* private data for lowlevel routines */ + void (*setsda) (void *data, int state); + void (*setscl) (void *data, int state); + int (*getsda) (void *data); + int (*getscl) (void *data); + + /* local settings */ + int udelay; /* half clock cycle time in us, + minimum 2 us for fast-mode I2C, + minimum 5 us for standard-mode I2C and SMBus, + maximum 50 us for SMBus */ + int timeout; /* in jiffies */ +}; + +int i2c_bit_add_bus(struct i2c_adapter *); +int i2c_bit_add_numbered_bus(struct i2c_adapter *); + +#endif /* _LINUX_I2C_ALGO_BIT_H */ |
