/projects/cubeos/src_current/drivers/i2c/analog.h Source File

00001 /*  src_experimental/drivers/i2c/analog.h
00002     CubeOS Version 0.4.90 experimental
00003     Copyright (C) 1999,2000 Holger Kenn
00004 
00005     CubeOS is free software; you can redistribute it and/or
00006     modify it under the terms of the GNU Library General Public
00007     License as published by the Free Software Foundation; either
00008     version 2 of the License, or any later version.
00009 
00010     CubeOS is distributed in the hope that it will be useful,
00011     but WITHOUT ANY WARRANTY; without even the implied warranty of
00012     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00013     Library General Public License for more details.
00014 
00015 */  
00016 #ifndef _ANALOG_H
00017 #define _ANALOG_H
00018 
00023 #define MAXI2CMESSLENGTH 8
00024 
00025 #define ANALOG_4SE    0x00;
00026 #define ANALOG_3DI    0x10;
00027 #define ANALOG_2S2D   0x20;
00028 #define ANALOG_2DI    0x30;
00029 #define ANALOG_DACOE  0x40;
00030 
00035 struct _I2C_ad_datas
00036 {
00037 char bus;
00038 char address;
00039 char ad[3];
00040 char da;
00041 char status;
00042 char active;
00043 };
00044 
00045 extern struct _I2C_ad_datas _I2C_ad_data[16];
00046 extern char _I2C_analog_mbuf[MAXI2CMESSLENGTH];
00047 extern struct i2cmess _I2C_analog_m;
00048 extern int _I2C_adnum;
00049 
00050 int I2C_ReadAnalogIn(int chip,int port);
00051 int I2C_WriteAnalogOut(int chip,int value);
00052 int I2C_ConfigureAnalog(int chip,char how);
00053 int I2C_init_analog();
00054 
00055 #endif