compiling error 10010 and 10234-d

hi guys i have problem on compiling my software and get this error as below

**** Build of configuration Debug for project lm4f ****

"c:\\ti\\ccsv6\\utils\\bin\\gmake" -k all 
'Building file: ../ti_codec.c'
'Invoking: ARM Compiler'
"c:/ti/ccsv6/tools/compiler/arm_5.1.5/bin/armcl" -mv7M4 --code_state=16 --float_support=FPv4SPD16 --abi=eabi -me --include_path="C:/StellarisWare" --include_path="c:/ti/ccsv6/tools/compiler/arm_5.1.5/include" -g --define=PART_LM4F120H5QR --display_error_number --diag_warning=225 --diag_wrap=off --preproc_with_compile --preproc_dependency="ti_codec.pp" "../ti_codec.c"
At end of source: warning #97-D: a translation unit must contain at least one declaration
'Finished building: ../ti_codec.c'
' '
'Building target: lm4f.out'
'Invoking: ARM Linker'
"c:/ti/ccsv6/tools/compiler/arm_5.1.5/bin/armcl" -mv7M4 --code_state=16 --float_support=FPv4SPD16 --abi=eabi -me -g --define=PART_LM4F120H5QR --display_error_number --diag_warning=225 --diag_wrap=off -z -m"lm4f.map" --heap_size=0 --stack_size=512 -i"c:/ti/ccsv6/tools/compiler/arm_5.1.5/lib" -i"c:/ti/ccsv6/tools/compiler/arm_5.1.5/include" --reread_libs --warn_sections --display_error_number --diag_wrap=off --xml_link_info="lm4f_linkInfo.xml" --rom_model -o "lm4f.out" "./ti_codec.obj" "./main.obj" "./lm4f120h5qr_startup_ccs.obj" "./i2c_if.obj" "C:/StellarisWare/driverlib/ccs-cm4f/Debug/driverlib-cm4f.lib" "../lm4f120h5qr.cmd" -l"libc.a" -l"C:\StellarisWare\driverlib\ccs-cm4f\Debug\driverlib-cm4f.lib" 
<Linking>

undefined first referenced
symbol in file 
--------- ----------------
CodecReset ./main.obj

error #10234-D: unresolved symbols remain
error #10010: errors encountered during linking; "lm4f.out" not built

>> Compilation failure
gmake: *** [lm4f.out] Error 1
gmake: Target `all' not remade because of errors.

**** Build Finished ****

i have no idea where goes wrong but i suspect it come from 1 of my file in my ccs. other c file are goes fine since i compile, while i added in a file i not sure why

below are some code which i have modified from 1 example

//*****************************************************************************
// ti_codec.c
//
// Driver for TI TLV320AIC3110 CODEC
//
// Copyright (C) 2014 Texas Instruments Incorporated - http://www.ti.com/ 
// 
// 
//  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 following disclaimer.
//
//    Redistributions in binary form must reproduce the above copyright
//    notice, this list of conditions and the following disclaimer in the 
//    documentation and/or other materials provided with the   
//    distribution.
//
//    Neither the name of Texas Instruments Incorporated nor the names of
//    its contributors may be used to endorse or promote products derived
//    from this software without specific prior written permission.
//
//  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 
//  "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 
//  LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
//  A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 
//  OWNER OR CONTRIBUTORS 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.
//
//*****************************************************************************

//*****************************************************************************
//
//! \addtogroup wifi_audio_app
//! @{
//
//*****************************************************************************
#ifdef TI_CODEC
#include "ti_codec.h"
#include "i2c_if.h"
#include <stdint.h>
#include <stdbool.h>
#include "test.h"
#include "inc/hw_types.h"
#include "inc/hw_memmap.h"
#include "inc/hw_gpio.h"
#include "inc/hw_ints.h"
#include "inc/hw_uart.h"
#include "inc/hw_sysctl.h"
#include "inc/hw_i2c.h"
#include "driverlib/fpu.h"
#include "driverlib/systick.h"
#include "driverlib/sysctl.h"
#include "driverlib/pin_map.h"
#include "driverlib/rom_map.h"
#include "driverlib/debug.h"
#include "driverlib/interrupt.h"
#include "driverlib/gpio.h"
#include "driverlib/uart.h"
#include "driverlib/rom.h"
#include "driverlib/i2c.h"
#include "driverlib/usb.h"
//*****************************************************************************
//                          LOCAL DEFINES
//*****************************************************************************
#define CRYSTAL_FREQ               40000000
#define SYS_CLK                    CRYSTAL_FREQ
#define CODEC_I2C_SLAVE_ADDR      ((0x30 >> 1)) 
#define CLOCK_512KHZ               1
#define DRC                        1
//******************************************************************************
//            GLOBAL VARIABLES
//******************************************************************************
unsigned char val[2],I,J=0;

//******************************************************************************
//
// Selects the Page for reading/writing
//
//******************************************************************************
unsigned long CodecPageSelect(unsigned long ulPageAddress)
{ 
    return CodecRegWrite(PAGE_CTRL_REG,ulPageAddress);
}

//******************************************************************************
//
// Writes to specfied register
// ulRegAddr - Register Address
// ucRegValue - 8 bit Register Value
//
//******************************************************************************
unsigned long CodecRegWrite(unsigned long ulRegAddr,unsigned char ucRegValue)
{
    unsigned char ucData[2]; 
    ucData[0] = (unsigned char)ulRegAddr;
    ucData[1] = ucRegValue;
    val[1]=ucData[1];
#if 0
    if(I2C_IF_ReadFrom(0x44,&ucRegAddr, 1, 
                   &ucRegData[0], 2) != 0)
    return -1;
#endif   
    J=I2C_IF_Write(CODEC_I2C_SLAVE_ADDR, ucData, 2, 1);
    if(J !=0)
        return (1U<<31);
        MAP_UtilsDelay(27000);

    J=I2C_IF_ReadFrom(CODEC_I2C_SLAVE_ADDR, &ucData[0], 1,&val[0],1);
    if(J !=0)
        return (1U<<31);

    if(val[0] != val[1])
        ++I;

    return 0;
}

void CodecReset(void)
{
    //
    // Select page 0
    //
    CodecPageSelect(0);

    //
    // Soft RESET
    //
    CodecRegWrite(CODEC_REG_SOFT_RESET,1);
}

#endif

the header file

//*****************************************************************************
// ti_codec.h
//
// Driver for TI TLV320AIC3110 CODEC
//
// Copyright (C) 2014 Texas Instruments Incorporated - http://www.ti.com/ 
// 
// 
//  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 following disclaimer.
//
//    Redistributions in binary form must reproduce the above copyright
//    notice, this list of conditions and the following disclaimer in the 
//    documentation and/or other materials provided with the   
//    distribution.
//
//    Neither the name of Texas Instruments Incorporated nor the names of
//    its contributors may be used to endorse or promote products derived
//    from this software without specific prior written permission.
//
//  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 
//  "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 
//  LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
//  A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 
//  OWNER OR CONTRIBUTORS 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.
//
//*****************************************************************************
//*****************************************************************************
//
// ti_codec.h - Macros and Prototypes for TI TLV320AIC3110 CODEC
//
//*****************************************************************************
#ifndef __TI_CODEC_H__
#define __TI_CODEC_H__
#ifdef TI_CODEC

#define CODEC_I2C_SLAVE_ADDR      ((0x30 >> 1)) 
#define PAGE_CTRL_REG           0x00

//******************************************************************************
//
// Supported Wordlength
//
//******************************************************************************
#define CODEC_I2S_WORD_LEN_16           0x00
#define CODEC_I2S_WORD_LEN_20           0x10
#define CODEC_I2S_WORD_LEN_24           0x20
#define CODEC_I2S_WORD_LEN_32           0x30

//******************************************************************************
//
// Codec Page 0 Registers
//
//******************************************************************************

#define CODEC_REG_SOFT_RESET            0x01
#define CODEC_REG_CLK_MUX               0x04
#define CODEC_REG_PLL                   0x05
#define CODEC_REG_IF_CTRL               0x1B
#define CODEC_REG_NDAC                  0x0B
#define CODEC_REG_MDAC                  0x0C
#define CODEC_REG_DOSR_MSB              0x0D
#define CODEC_REG_DOSR_LSB              0x0E
#define CODEC_REG_DAC_PRB               0x3C
#define CODEC_REG_DAC_VOL               0x40
#define CODEC_REG_DAC_LEFT_VOL          0x41
#define CODEC_REG_DAC_RIGHT_VOL         0x42

//******************************************************************************
//
// Codec Page 1 Registers
//
//******************************************************************************

#define CODEC_REG_HP                    0x1F
#define CODEC_REG_OUTPUT_MIXER          0x23
#define CODEC_REG_HPL_DRIVER            0x28
#define CODEC_REG_HPR_DRIVER            0x29
#define CODEC_REG_SPL_DRV               0x2A
#define CODEC_REG_SPR_DRV               0x2B
#define CODEC_REG_CLASS_D_AMP           0x20
#define CODEC_REG_HPL_VOL               0x24
#define CODEC_REG_HPR_VOL               0x25
#define CODEC_REG_SPL_VOL               0x26
#define CODEC_REG_SPR_VOL               0x27
#define CODEC_REG_DAC_DATA_PATH         0x3F

//******************************************************************************
//
// Codec Page 8 Registers
//
//******************************************************************************
#define CODEC_REG_DAC_COFF_BUF          0x01

//******************************************************************************
//
// Prototypes for the APIs.
//
//******************************************************************************

extern unsigned long CodecRegWrite(unsigned long ulRegAddr,unsigned char ucRegValue);
extern unsigned long CodecPageSelect(unsigned long ulPageAddress);
extern void CodecReset(void);

#endif
#endif //__TI_CODEC_H__

i think something wrong between this 2, sorry if i posted wrong area