patch-2.3.34 linux/drivers/i2c/i2c-pcf8584.h

• Lines: 78
• Date: Thu Dec 16 13:59:38 1999
• Orig file: v2.3.33/linux/drivers/i2c/i2c-pcf8584.h
• Orig date: Wed Dec 31 16:00:00 1969

diff -u --recursive --new-file v2.3.33/linux/drivers/i2c/i2c-pcf8584.h linux/drivers/i2c/i2c-pcf8584.h
@@ -0,0 +1,77 @@
+/* -------------------------------------------------------------------- */
+/* i2c-pcf8584.h: PCF 8584 global defines				*/
+/* -------------------------------------------------------------------- */
+/*   Copyright (C) 1996 Simon G. Vogl
+                   1999 Hans Berglund
+
+    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.		*/
+/* --------------------------------------------------------------------	*/
+/* $Id: i2c-pcf8584.h,v 1.1 1999/07/18 14:01:33 frodo Exp $ */
+
+/* With some changes from Frodo Looijaard <frodol@dds.nl> */
+
+#ifndef I2C_PCF8584_H
+#define I2C_PCF8584_H 1
+
+/* ----- Control register bits ----------------------------------------	*/
+#define I2C_PCF_PIN  0x80
+#define I2C_PCF_ESO  0x40
+#define I2C_PCF_ES1  0x20
+#define I2C_PCF_ES2  0x10
+#define I2C_PCF_ENI  0x08
+#define I2C_PCF_STA  0x04
+#define I2C_PCF_STO  0x02
+#define I2C_PCF_ACK  0x01
+
+#define I2C_PCF_START    (I2C_PCF_PIN | I2C_PCF_ESO | I2C_PCF_STA | I2C_PCF_ACK)
+#define I2C_PCF_STOP     (I2C_PCF_PIN | I2C_PCF_ESO | I2C_PCF_STO | I2C_PCF_ACK)
+#define I2C_PCF_REPSTART (              I2C_PCF_ESO | I2C_PCF_STA | I2C_PCF_ACK)
+#define I2C_PCF_IDLE     (I2C_PCF_PIN | I2C_PCF_ESO               | I2C_PCF_ACK)
+
+/* ----- Status register bits -----------------------------------------	*/
+/*#define I2C_PCF_PIN  0x80    as above*/
+
+#define I2C_PCF_INI 0x40   /* 1 if not initialized */
+#define I2C_PCF_STS 0x20   
+#define I2C_PCF_BER 0x10
+#define I2C_PCF_AD0 0x08
+#define I2C_PCF_LRB 0x08
+#define I2C_PCF_AAS 0x04
+#define I2C_PCF_LAB 0x02
+#define I2C_PCF_BB  0x01
+
+/* ----- Chip clock frequencies ---------------------------------------	*/
+#define I2C_PCF_CLK3    0x00
+#define I2C_PCF_CLK443  0x10
+#define I2C_PCF_CLK6    0x14
+#define I2C_PCF_CLK8    0x18
+#define I2C_PCF_CLK12   0x1c
+
+/* ----- transmission frequencies -------------------------------------	*/
+#define I2C_PCF_TRNS90 0x00  /*  90 kHz */
+#define I2C_PCF_TRNS45 0x01  /*  45 kHz */
+#define I2C_PCF_TRNS11 0x02  /*  11 kHz */
+#define I2C_PCF_TRNS15 0x03  /* 1.5 kHz */
+
+
+/* ----- Access to internal registers according to ES1,ES2 ------------	*/
+/* they are mapped to the data port ( a0 = 0 ) 				*/
+/* available when ESO == 0 :						*/
+
+#define I2C_PCF_OWNADR	0
+#define I2C_PCF_INTREG	I2C_PCF_ES2
+#define I2C_PCF_CLKREG	I2C_PCF_ES1
+
+#endif I2C_PCF8584_H