firmware/target/arm/s5l8700/udacodec-meizu.c

   1 /***************************************************************************
   2  *             __________               __   ___.
   3  *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
   4  *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
   5  *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
   6  *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
   7  *                     \/            \/     \/    \/            \/
   8  * $Id$
   9  *
  10  * Copyright (C) 2009 by Bertrik Sikken
  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 "config.h"
  23 #include "kernel.h"
  24 #include "s5l8700.h"
  25 #include "i2c-s5l8700.h"
  26 #include "uda1380.h"
  27 #include "udacodec.h"
  28
  29 void udacodec_reset(void)
  30 {
  31     /* Reset codec using GPIO P5.0 */
  32     PCON5 = (PCON5 & ~0xF) | 1;
  33     PDAT5 |= (1 << 0);
  34     sleep(HZ/100);
  35
  36     /* Set codec reset pin inactive */
  37     PDAT5 &= ~(1 << 0);
  38 }
  39
  40 int udacodec_write(unsigned char reg, unsigned short value)
  41 {
  42     unsigned char data[2];
  43
  44     data[0] = value >> 8;
  45     data[1] = value & 0xFF;
  46
  47     return i2c_write(UDA1380_ADDR, reg, 2, data);
  48 }
  49
  50 int udacodec_write2(unsigned char reg,
  51                     unsigned short value1, unsigned short value2)
  52 {
  53     unsigned char data[4];
  54
  55     data[0] = value1 >> 8;
  56     data[1] = value1 & 0xFF;
  57     data[2] = value2 >> 8;
  58     data[3] = value2 & 0xFF;
  59
  60     return i2c_write(UDA1380_ADDR, reg, 4, data);
  61 }
  62