firmware/target/arm/ascodec-target.h

   1 /***************************************************************************
   2  *             __________               __   ___.
   3  *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
   4  *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
   5  *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
   6  *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
   7  *                     \/            \/     \/    \/            \/
   8  * $Id$
   9  *
  10  * Driver for AS3514 audio codec
  11  *
  12  * Copyright (c) 2007 Daniel Ankers
  13  * Copyright (c) 2007 Christian Gmeiner
  14  *
  15  * This program is free software; you can redistribute it and/or
  16  * modify it under the terms of the GNU General Public License
  17  * as published by the Free Software Foundation; either version 2
  18  * of the License, or (at your option) any later version.
  19  *
  20  * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
  21  * KIND, either express or implied.
  22  *
  23  ****************************************************************************/
  24
  25 #ifndef _ASCODEC_TARGET_H
  26 #define _ASCODEC_TARGET_H
  27
  28 #include "config.h"
  29
  30 #ifdef CPU_PP
  31 /* TODO: This header is actually portalplayer specific, and should be
  32  * moved into an appropriate subdir  */
  33
  34 #include "as3514.h"
  35 #include "i2c-pp.h"
  36
  37 static inline int ascodec_write(unsigned int reg, unsigned int value)
  38 {
  39     return pp_i2c_send(AS3514_I2C_ADDR, reg, value);
  40 }
  41
  42 static inline int ascodec_read(unsigned int reg)
  43 {
  44     return i2c_readbyte(AS3514_I2C_ADDR, reg);
  45 }
  46
  47 static inline int ascodec_readbytes(int addr, int len, unsigned char *data)
  48 {
  49     return i2c_readbytes(AS3514_I2C_ADDR, addr, len, data);
  50 }
  51
  52 static inline void ascodec_lock(void)
  53 {
  54     i2c_lock();
  55 }
  56
  57 static inline void ascodec_unlock(void)
  58 {
  59     i2c_unlock();
  60 }
  61
  62 static inline void ascodec_enable_endofch_irq(void)
  63 {
  64     ascodec_write(AS3514_IRQ_ENRD0, IRQ_ENDOFCH);
  65 }
  66
  67 static inline void ascodec_disable_endofch_irq(void)
  68 {
  69     ascodec_write(AS3514_IRQ_ENRD0, 0);
  70 }
  71
  72 static inline void ascodec_wait_adc_finished(void)
  73 {
  74     /*
  75      * FIXME: not implemented
  76      *
  77      * If irqs are not available on the target platform,
  78      * this should be most likely implemented by polling
  79      * AS3514_IRQ_ENRD2 in the same way powermgmt-ascodec.c
  80      * is polling IRQ_ENDOFCH.
  81      */
  82 }
  83
  84 extern void ascodec_suppressor_on(bool on);
  85
  86 #endif /* CPU_PP */
  87
  88 #endif /* !_ASCODEC_TARGET_H */