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/* ----------------------------------------------------------------------------
* ATMEL Microcontroller Software Support
* ----------------------------------------------------------------------------
* Copyright (c) 2008, Atmel Corporation
*
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* - Redistributions of source code must retain the above copyright notice,
* this list of conditions and the disclaimer below.
*
* Atmel's name may not be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* DISCLAIMER: THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE
* DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
* OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
* ----------------------------------------------------------------------------
*/
//------------------------------------------------------------------------------
/// \unit
///
/// !Purpose
///
/// UDA1342 driver
///
/// !Usage
///
/// Explanation on the usage of the code made available through the header file.
//------------------------------------------------------------------------------
//------------------------------------------------------------------------------
// Headers
//------------------------------------------------------------------------------
#include "uda1342.h"
#include <board.h>
#include <utility/trace.h>
#define TWITIMEOUTMAX 50000
//------------------------------------------------------------------------------
// Definitions
//------------------------------------------------------------------------------
typedef struct {
const char* name;
unsigned char address;
unsigned short defvalue;
} t_register;
t_register tab_uda1342_register[] =
{
{ "SYSTEM ", UDA1342_REG_SYSTEM , 0x1A02 },
{ "SUB_SYSTEM ", UDA1342_REG_SUB_SYSTEM , 0x0000 },
{ "DAC_FEATURE ", UDA1342_REG_DAC_FEATURE , 0x0000 },
{ "DAC_MASTER_VOLUME", UDA1342_REG_DAC_MASTER_VOLUME, 0x0000 },
{ "DAC_MIXER_VOLUME ", UDA1342_REG_DAC_MIXER_VOLUME , 0x0000 },
{ "GAIN_CH1 ", UDA1342_REG_GAIN_CH1 , 0x0000 },
{ "GAIN_CH2 ", UDA1342_REG_GAIN_CH2 , 0x0000 },
{ "EVALUATION ", UDA1342_REG_EVALUATION , 0x0000 },
};
#define TAB_UDA1342_SIZE (sizeof(tab_uda1342_register)/sizeof(tab_uda1342_register[0]))
//------------------------------------------------------------------------------
// Exported functions
//------------------------------------------------------------------------------
//------------------------------------------------------------------------------
/// Read data from UDA1342 Register.
/// \param pTwid pointer to twi driver structure
/// \param device twi slave address
/// \param regAddr register address to read.
//------------------------------------------------------------------------------
unsigned short UDA1342_Read(
Twid *pTwid,
unsigned char device,
unsigned char regAddr)
{
unsigned short bitsDataRegister;
unsigned char Tdata[2]={0,0};
TWID_Read(pTwid, device, regAddr, 1, Tdata, 2, 0);
bitsDataRegister = (Tdata[0] << 8) | Tdata[1];
return bitsDataRegister;
}
//------------------------------------------------------------------------------
/// Write data to UDA1342 Register.
/// \param pTwid pointer to twi driver structure
/// \param device twi slave address
/// \param regAddr register address to read.
/// \param data data to write
//------------------------------------------------------------------------------
void UDA1342_Write(
Twid *pTwid,
unsigned char device,
unsigned char regAddr,
unsigned short data)
{
unsigned char tmpData[2];
tmpData[0] = (data & 0xff00) >> 8;
tmpData[1] = data & 0xff;
TWID_Write(pTwid, device, regAddr, 1, tmpData, 2, 0);
}
//------------------------------------------------------------------------------
/// Init UDA1342 to DAC mode.
/// \param pTwid pointer to twi driver structure
/// \param device twi slave address
//------------------------------------------------------------------------------
unsigned char UDA1342_DAC_Init(
Twid *pTwid,
unsigned int device,
unsigned char isClock384)
{
// reset all registers to default values
// and set system register
if(isClock384)
UDA1342_Write(pTwid, device, UDA1342_REG_SYSTEM, 0x9A22);
else
UDA1342_Write(pTwid, device, UDA1342_REG_SYSTEM, 0x9A02);
return 0;
}
//------------------------------------------------------------------------------
/// Display component registers
/// \param pTwid pointer to twi driver structure
/// \param device twi slave address
//------------------------------------------------------------------------------
void UDA1342_DisplayRegisters(
Twid *pTwid,
unsigned int device)
{
unsigned int i;
TRACE_PERM_WP("UDA1342 registers values\n\r");
TRACE_PERM_WP("------------------------------------\n\r");
for(i=0;i<TAB_UDA1342_SIZE;i++) {
TRACE_PERM_WP(" %s %02x val %04x (%04x)\n\r",
tab_uda1342_register[i].name,
tab_uda1342_register[i].address,
UDA1342_Read(pTwid, device, tab_uda1342_register[i].address),
tab_uda1342_register[i].defvalue
);
}
}
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