1 files changed, 54 insertions, 0 deletions

diff --git a/include/linux/i2c-algo-bit.h b/include/linux/i2c-algo-bit.h
new file mode 100644
index 000000000000..110904481238
--- /dev/null
+++ b/include/linux/i2c-algo-bit.h
@@ -0,0 +1,54 @@
+/* ------------------------------------------------------------------------- */
+/* 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 */