firmware/drivers/pcf50606.c

   1 /***************************************************************************
   2  *             __________               __   ___.
   3  *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
   4  *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
   5  *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
   6  *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
   7  *                     \/            \/     \/    \/            \/
   8  * $Id$
   9  *
  10  * Copyright (C) 2008 by Rob Purchase
  11  *
  12  * All files in this archive are subject to the GNU General Public License.
  13  * See the file COPYING in the source tree root for full license agreement.
  14  *
  15  * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
  16  * KIND, either express or implied.
  17  *
  18  ****************************************************************************/
  19 #include "pcf50606.h"
  20 #include "i2c.h"
  21
  22 #define PCF50606_ADDR 0x10
  23
  24 int pcf50606_write(int address, unsigned char val)
  25 {
  26     unsigned char data[] = { address, val };
  27     return i2c_write(PCF50606_ADDR, data, 2);
  28 }
  29
  30 int pcf50606_write_multiple(int address, const unsigned char* buf, int count)
  31 {
  32     int i;
  33
  34     for (i = 0; i < count; i++)
  35         pcf50606_write(address + i, buf[i]);
  36
  37     return 0;
  38 }
  39
  40 int pcf50606_read(int address)
  41 {
  42     unsigned char val = -1;
  43     i2c_readmem(PCF50606_ADDR, address, &val, 1);
  44     return val;
  45 }
  46
  47 int pcf50606_read_multiple(int address, unsigned char* buf, int count)
  48 {
  49     return i2c_readmem(PCF50606_ADDR, address, buf, count);
  50 }
  51
  52 void pcf50606_init(void)
  53 {
  54     // TODO
  55 }