firmware/drivers/rtc/rtc_zenvisionm.c

   1 /***************************************************************************
   2  *             __________               __   ___.
   3  *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
   4  *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
   5  *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
   6  *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
   7  *                     \/            \/     \/    \/            \/
   8  * $Id$
   9  *
  10  * Copyright (C) 2008 by Maurus Cuelenaere
  11  *
  12  * This program is free software; you can redistribute it and/or
  13  * modify it under the terms of the GNU General Public License
  14  * as published by the Free Software Foundation; either version 2
  15  * of the License, or (at your option) any later version.
  16  *
  17  * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
  18  * KIND, either express or implied.
  19  *
  20  ****************************************************************************/
  21
  22  #include "i2c-dm320.h"
  23
  24  #define I2C_ADDRESS 0x51
  25
  26  unsigned char* rtc_send_command(short unk1, short unk2)
  27  {
  28     unsigned char ret[12];
  29     i2c_write(I2C_ADDRESS, (unk2 & 0xFF) | (unk << 8), 1);
  30     i2c_read(I2C_ADDRESS, ret, 12);
  31     return ret;
  32  }
  33
  34  unsigned char* rtc_read(void)
  35  {
  36     unsigned char ret[12];
  37     i2c_read(I2C_ADDRESS, ret, 12);
  38     return ret;
  39  }