[LCD] Fix click-noise of LCD=ON.

[openi2cradio/OpenI2CRadio.git] / i2c_io.h

diff --git a/i2c_io.h b/i2c_io.h
index 586dcf6..ea4add0 100644 (file)
--- a/i2c_io.h
+++ b/i2c_io.h
@@ -1,13 +1,39 @@
 /*
  * OpenI2CRADIO
- * I2C Header
- * (C) 2013-06-10 K.Ohta <whatisthis.sowhat ai gmail.com>
- * License: GPL2
+ * I2C Handler
+ * Copyright (C) 2013-06-10 K.Ohta <whatisthis.sowhat ai gmail.com>
+ * License: GPL2+LE
+ *
+ *  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,
+ *  or (at your option) any later version.
+ *  This library / 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 library; see the file COPYING. If not, write to the
+ *  Free Software Foundation, 51 Franklin Street, Fifth Floor, Boston,
+ *  MA 02110-1301, USA.
+ *
+ *  As a special exception, if you link this(includeed from sdcc) library
+ *  with other files, some of which are compiled with SDCC,
+ *  to produce an executable, this library does not by itself cause
+ *  the resulting executable to be covered by the GNU General Public License.
+ *  This exception does not however invalidate any other reasons why
+ *  the executable file might be covered by the GNU General Public License.
  */
+#ifdef __SDCC
 #include <sdcc-lib.h>
 #include <pic18fregs.h> /* ONLY FOR PIC18x */
+#else
+#include <xc.h>
+#endif
 
 #include <i2c.h>
+#include "iodef.h"
 
 #ifndef I2C_IO_H
 #define        I2C_IO_H
@@ -18,12 +44,17 @@ extern "C" {
 /*
  * #1
  */
-#define I2C_CLOCK_PARAM 19 // 8MHz/(4*(1+I2C_CLOCK_PARAM)) -> 100KHz
+#define I2C_CLOCK_PARAM 4 // 8MHz/(4*(1+I2C_CLOCK_PARAM)) -> 400KHz
+//#define I2C_CLOCK_PARAM 15 // 8MHz/(4*(1+I2C_CLOCK_PARAM)) -> 100KHz
 #define I2C_DEFAULT_MODE I2C_MASTER
-#define I2C_SLEW_DEFAULT I2C_SLEW_ON
+#define I2C_SLEW_DEFAULT I2C_SLEW_OFF
 
 #define OPENASMASTER() i2c_open(I2C_DEFAULT_MODE, I2C_SLEW_DEFAULT, I2C_CLOCK_PARAM)
 #define CLOSEASMASTER() i2c_close()
+extern void i2c1_init(void);
+extern void i2c2_init(void);
+extern void i2c_send_byte(unsigned char addr, unsigned char reg, unsigned char data);
+extern unsigned char i2c_read_byte(unsigned char addr, unsigned char reg);
 
 
 #ifdef __cplusplus