patch-2.3.34 linux/include/linux/i2c-algo-bit.h

• Lines: 54
• Date: Thu Dec 16 13:59:38 1999
• Orig file: v2.3.33/linux/include/linux/i2c-algo-bit.h
• Orig date: Wed Dec 31 16:00:00 1969

diff -u --recursive --new-file v2.3.33/linux/include/linux/i2c-algo-bit.h linux/include/linux/i2c-algo-bit.h
@@ -0,0 +1,53 @@
+/* ------------------------------------------------------------------------- */
+/* 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 I2C_ALGO_BIT_H
+#define I2C_ALGO_BIT_H 1
+
+#include <linux/i2c.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;
+	int mdelay;
+	int timeout;
+};
+
+#define I2C_BIT_ADAP_MAX	16
+
+int i2c_bit_add_bus(struct i2c_adapter *);
+int i2c_bit_del_bus(struct i2c_adapter *);
+
+#endif /* I2C_ALGO_BIT_H */