firmware/target/arm/as3525/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 #ifndef SIMULATOR
  29
  30 #include "as3514.h"
  31 #include "kernel.h"       /* for struct wakeup */
  32 #include "clock-target.h" /* for AS3525_I2C_PRESCALER */
  33 #include "system-arm.h"
  34
  35 /*  Charge Pump and Power management Settings  */
  36 #define AS314_CP_DCDC3_SETTING    \
  37                ((0<<7) |  /* CP_SW  Auto-Switch Margin 0=200/300 1=150/255 */  \
  38                 (0<<6) |  /* CP_on  0=Normal op 1=Chg Pump Always On  */       \
  39                 (0<<5) |  /* LREG_CPnot  Always write 0 */                     \
  40                 (0<<3) |  /* DCDC3p  BVDD setting 3.6/3.2/3.1/3.0  */          \
  41                 (1<<2) |  /* LREG_off 1=Auto mode switching 0=Length Reg only*/\
  42                 (0<<0) )  /* CVDDp  Core Voltage Setting 1.2/1.15/1.10/1.05*/
  43
  44 #define CVDD_1_20          0
  45 #define CVDD_1_15          1
  46 #define CVDD_1_10          2
  47 #define CVDD_1_05          3
  48
  49 void ascodec_init(void) INIT_ATTR;
  50
  51 int ascodec_write(unsigned int index, unsigned int value);
  52
  53 int ascodec_read(unsigned int index);
  54
  55 int ascodec_readbytes(unsigned int index, unsigned int len, unsigned char *data);
  56
  57 void ascodec_lock(void);
  58
  59 void ascodec_unlock(void);
  60
  61 void ascodec_wait_adc_finished(void);
  62
  63 static inline void ascodec_monitor_endofch(void) {} /* already enabled */
  64
  65 bool ascodec_endofch(void);
  66
  67 bool ascodec_chg_status(void);
  68
  69 #if CONFIG_CPU == AS3525v2
  70 static inline void ascodec_write_pmu(unsigned int index, unsigned int subreg,
  71                                      unsigned int value)
  72 {
  73     /* we disable interrupts to make sure no operation happen on the i2c bus
  74      * between selecting the sub register and writing to it */
  75     int oldstatus = disable_irq_save();
  76     ascodec_write(AS3543_PMU_ENABLE, 8|subreg);
  77     ascodec_write(index, value);
  78     restore_irq(oldstatus);
  79 }
  80
  81 static inline int ascodec_read_pmu(unsigned int index, unsigned int subreg)
  82 {
  83     /* we disable interrupts to make sure no operation happen on the i2c bus
  84      * between selecting the sub register and reading it */
  85     int oldstatus = disable_irq_save();
  86     ascodec_write(AS3543_PMU_ENABLE, subreg);
  87     int ret = ascodec_read(index);
  88     restore_irq(oldstatus);
  89     return ret;
  90 }
  91 #endif /* CONFIG_CPU == AS3525v2 */
  92
  93 static inline void ascodec_write_charger(int value)
  94 {
  95 #if CONFIG_CPU == AS3525
  96     ascodec_write(AS3514_CHARGER, value);
  97 #else
  98     ascodec_write_pmu(AS3543_CHARGER, 1, value);
  99 #endif
 100 }
 101
 102 static inline int ascodec_read_charger(void)
 103 {
 104 #if CONFIG_CPU == AS3525
 105     return ascodec_read(AS3514_CHARGER);
 106 #else
 107     return ascodec_read_pmu(AS3543_CHARGER, 1);
 108 #endif
 109 }
 110
 111 #endif /* !SIMULATOR */
 112
 113 #endif /* !_ASCODEC_TARGET_H */