i2c.c
132 lines
| 2.7 KiB
| text/x-c
|
CLexer
| r71 | /*------------------------------------------------------------------------------ | |||
| -- This file is a part of the libuc, microcontroler library | ||||
| -- Copyright (C) 2012, Alexis Jeandet | ||||
| -- | ||||
| -- 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 3 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | ||||
| ------------------------------------------------------------------------------- | ||||
| -- Author : Alexis Jeandet | ||||
| -- Mail : alexis.jeandet@member.fsf.org | ||||
| -------------------------------------------------------------------------------*/ | ||||
| #include <i2c.h> | ||||
| #include <gpio.h> | ||||
| int i2ctimeout=1000*1000; | ||||
| i2c_t i2copen(int count) | ||||
| { | ||||
| return -1; | ||||
| } | ||||
| i2c_t i2copenandconfig(int count,uint32_t cfg,uint32_t speed,uint32_t SDA,uint32_t SCL) | ||||
| { | ||||
| i2c_t dev = i2copen(count); | ||||
| if(dev!=-1) | ||||
| { | ||||
| i2cclose(dev); | ||||
| i2csetpins(dev,SDA,SCL); | ||||
| i2copen(count); | ||||
| i2csetspeed(dev,speed); | ||||
| i2cenable(count); | ||||
| } | ||||
| return dev; | ||||
| } | ||||
| int i2cclose(i2c_t dev) | ||||
| { | ||||
| return 1; | ||||
| } | ||||
| int i2csetpins(i2c_t dev, uint32_t SDA, uint32_t SCL) | ||||
| { | ||||
| if((dev<i2c4)&&(dev>=i2c1)) | ||||
| { | ||||
| return 0; | ||||
| } | ||||
| return -1; | ||||
| } | ||||
| int i2cenable(i2c_t dev) | ||||
| { | ||||
| if((dev<i2c4)&&(dev>=i2c1)) | ||||
| { | ||||
| return 0; | ||||
| } | ||||
| return -1; | ||||
| } | ||||
| int i2cdisable(i2c_t dev) | ||||
| { | ||||
| if((dev<i2c4)&&(dev>=i2c1)) | ||||
| { | ||||
| return 0; | ||||
| } | ||||
| return -1; | ||||
| } | ||||
| int i2csetspeed(i2c_t dev,uint32_t speed) | ||||
| { | ||||
| if((dev<i2c4)&&(dev>=i2c1)) | ||||
| { | ||||
| return 0; | ||||
| } | ||||
| return -1; | ||||
| } | ||||
| int i2cbusy(i2c_t dev) | ||||
| { | ||||
| if((dev<i2c4)&&(dev>=i2c1)) | ||||
| { | ||||
| return 0; /* Dev isn't busy */ | ||||
| } | ||||
| return -1; /* Error, dev is out of range */ | ||||
| } | ||||
| int i2cwrite(i2c_t dev,char address,char* data,int count) | ||||
| { | ||||
| if((dev<i2c4)&&(dev>=i2c1)) | ||||
| { | ||||
| return 0; | ||||
| } | ||||
| return -1; | ||||
| } | ||||
| int i2cread(i2c_t dev,char address,char* data,int count) | ||||
| { | ||||
| if((dev<i2c4)&&(dev>=i2c1)) | ||||
| { | ||||
| return 0; | ||||
| } | ||||
| return -1; | ||||
| } | ||||
| int i2cStatusCheck(i2c_t dev,int32_t flagMask) | ||||
| { | ||||
| int32_t flag; | ||||
| if((dev<i2c4)&&(dev>=i2c1)) | ||||
| { | ||||
| return 0; | ||||
| } | ||||
| return -1; | ||||
| } | ||||
