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Diffstat (limited to 'include/linux/i2c-algo-bit.h')
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diff --git a/include/linux/i2c-algo-bit.h b/include/linux/i2c-algo-bit.h
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+/* ------------------------------------------------------------------------- */
+/* 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> */
+
+/* $Id: i2c-algo-bit.h,v 1.10 2003/01/21 08:08:16 kmalkki Exp $ */
+
+#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 microsecs */
+ /* i.e. clock is (500 / udelay) KHz */
+ int mdelay; /* in millisecs, unused */
+ int timeout; /* in jiffies */
+};
+
+#define I2C_BIT_ADAP_MAX 16
+
+int i2c_bit_add_bus(struct i2c_adapter *);
+int i2c_bit_del_bus(struct i2c_adapter *);
+
+#endif /* _LINUX_I2C_ALGO_BIT_H */