/* ---------------------------------------------------------------------------- | |
* SAM Software Package License | |
* ---------------------------------------------------------------------------- | |
* Copyright (c) 2014, 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 | |
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* DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR ANY DIRECT, INDIRECT, | |
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT | |
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* ---------------------------------------------------------------------------- | |
*/ | |
/** | |
* \file | |
* | |
* Implementation CS2100 driver. | |
* | |
*/ | |
/*---------------------------------------------------------------------------- | |
* Headers | |
*----------------------------------------------------------------------------*/ | |
#include "board.h" | |
/*---------------------------------------------------------------------------- | |
* Type | |
*----------------------------------------------------------------------------*/ | |
typedef struct { | |
uint16_t value; | |
uint8_t address; | |
}CS2100_PARA; | |
/*---------------------------------------------------------------------------- | |
* Exported functions | |
*----------------------------------------------------------------------------*/ | |
/** | |
* \brief Read data from CS2100 Register. | |
* | |
* \param pTwid Pointer to twi driver structure | |
* \param device Twi slave address. | |
* \param regAddr Register address to read. | |
* \return value in the given register. | |
*/ | |
uint16_t CS2100_Read(Twid *pTwid, | |
uint32_t device, | |
uint32_t regAddr) | |
{ | |
uint16_t bitsDataRegister; | |
uint8_t Tdata[2]={0,0}; | |
TWID_Read(pTwid, device, regAddr, 1, Tdata, 2, 0); | |
bitsDataRegister = (Tdata[0] << 8) | Tdata[1]; | |
return bitsDataRegister; | |
} | |
/** | |
* \brief Write data to CS2100 Register. | |
* | |
* \param pTwid Pointer to twi driver structure | |
* \param device Twi slave address. | |
* \param regAddr Register address to write. | |
* \param data Data to write | |
*/ | |
void CS2100_Write(Twid *pTwid, | |
uint32_t device, | |
uint32_t regAddr, | |
uint16_t data) | |
{ | |
uint8_t tmpData[2]; | |
tmpData[0] = (data & 0xff00) >> 8; | |
tmpData[1] = data & 0xff; | |
TWID_Write(pTwid, device, regAddr, 1, tmpData, 2, 0); | |
} | |
/** | |
* \brief Initialize CS2100 Clock Multiplier. | |
* | |
* \param pTwid Pointer to twi driver structure | |
* \param device Twi slave address. | |
* \param PCK Device programmable clock | |
*/ | |
uint8_t CS2100_Init(Twid *pTwid, uint32_t device, uint32_t PCK) | |
{ | |
uint16_t data = 0; | |
// Reset (write Reg@0x0 to reset) | |
CS2100_Write(pTwid, device, 0, 0xFFFF); | |
for(data = 0; data < 1000; data++); | |
//wait ready | |
while(data!=0x8904) | |
data = CS2100_Read(pTwid, device, 0); | |
return 0; | |
} | |