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/*
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AMiRo-LLD is a compilation of low-level hardware drivers for the Autonomous Mini Robot (AMiRo) platform.
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Copyright (C) 2016..2019  Thomas Schöpping et al.
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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GNU Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with this program.  If not, see <http://www.gnu.org/licenses/>.
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*/
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/**
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 * @file    alld_at24c01bn-sh-b.c
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 * @brief   EEPROM function implementations.
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 *
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 * @addtogroup lld_eeprom
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 * @{
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 */
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#include <alld_at24c01bn-sh-b.h>
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#if defined(AMIROLLD_CFG_USE_AT24C01BN) || defined(__DOXYGEN__)
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#include <string.h>
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/******************************************************************************/
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/* LOCAL DEFINITIONS                                                          */
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/******************************************************************************/
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/******************************************************************************/
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/* EXPORTED VARIABLES                                                         */
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/******************************************************************************/
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/******************************************************************************/
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/* LOCAL TYPES                                                                */
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/******************************************************************************/
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/******************************************************************************/
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/* LOCAL VARIABLES                                                            */
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/******************************************************************************/
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/******************************************************************************/
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/* LOCAL FUNCTIONS                                                            */
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/******************************************************************************/
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/******************************************************************************/
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/* EXPORTED FUNCTIONS                                                         */
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/******************************************************************************/
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/**
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 * @brief Acknowledgement polling to check if a write operation finished.
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 * @param[in]   at24c01bn The eeprom driver to use.
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 * @param[in]   timeout   Timeout for the function to return (in microseconds)
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 *
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 * @return  The return status indicates whether the function call was succesfull or a timeout occurred.
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 */
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apalExitStatus_t at24c01bn_lld_poll_ack(const AT24C01BNDriver* const at24c01bn, const apalTime_t timeout)
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{
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  apalDbgAssert(at24c01bn != NULL);
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  uint8_t tmp = 0;
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  return apalI2CMasterReceive(at24c01bn->i2cd, (AT24C01BN_LLD_I2C_ADDR_FIXED | at24c01bn->addr), &tmp, 1, timeout);
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}
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/**
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 * @brief Read the data from the eeprom starting at the current address.
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 * @param[in]   at24c01bn The eeprom driver to use.
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 * @param[out]  data      The data read from the AT24C01BN.
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 * @param[in]   num       The amount of bytes to read.
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 * @param[in]   timeout   Timeout for the function to return (in microseconds)
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 *
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 * @return  The return status indicates whether the function call was succesfull or a timeout occurred.
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 */
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apalExitStatus_t at24c01bn_lld_read_current_address(const AT24C01BNDriver* const at24c01bn, uint8_t* const data, const uint8_t num, const apalTime_t timeout)
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{
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  apalDbgAssert(at24c01bn != NULL);
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  apalDbgAssert(data != NULL);
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  return apalI2CMasterReceive(at24c01bn->i2cd, (AT24C01BN_LLD_I2C_ADDR_FIXED | at24c01bn->addr), data, num, timeout);
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}
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/**
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 * @brief Read the data from the eeprom starting at a given address.
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 * @param[in]   at24c01bn The eeprom driver to use.
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 * @param[in]   addr      The address to read.
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 * @param[out]  data      The data read from the AT24C01BN.
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 * @param[in]   num       The amount of bytes to read.
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 * @param[in]   timeout   Timeout for the function to return (in microseconds)
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 *
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 * @return  The return status indicates whether the function call was succesfull or a timeout occurred.
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 */
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apalExitStatus_t at24c01bn_lld_read(const AT24C01BNDriver* const at24c01bn, const uint8_t addr, uint8_t* const data, const uint8_t num, const apalTime_t timeout)
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{
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  apalDbgAssert(at24c01bn != NULL);
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  apalDbgAssert(data != NULL);
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  apalDbgAssert(addr + num <= AT24C01BN_LLD_SIZE_BYTES);
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  apalExitStatus_t status = apalI2CMasterTransmit(at24c01bn->i2cd, (AT24C01BN_LLD_I2C_ADDR_FIXED | at24c01bn->addr), &addr, 1, NULL, 0, timeout);
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  if (status == APAL_STATUS_OK || status == APAL_STATUS_WARNING) {
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    return apalI2CMasterReceive(at24c01bn->i2cd, (AT24C01BN_LLD_I2C_ADDR_FIXED | at24c01bn->addr), data, num, timeout);
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  } else {
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    return status;
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  }
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}
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/**
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 * @brief Write a byte to the eeprom.
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 * @param[in]   at24c01bn The eeprom driver to use.
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 * @param[in]   addr      The address to start writing.
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 * @param[out]  data      The data to be written to the AT24C01BN.
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 * @param[in]   timeout   Timeout for the function to return (in microseconds)
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 *
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 * @return  The return status indicates whether the function call was succesfull or a timeout occurred.
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 */
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apalExitStatus_t at24c01bn_lld_write_byte(const AT24C01BNDriver* const at24c01bn, const uint8_t addr, const uint8_t data, const apalTime_t timeout)
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{
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  apalDbgAssert(at24c01bn != NULL);
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  const uint8_t writedata[2] = {addr, data};
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  return apalI2CMasterTransmit(at24c01bn->i2cd, (AT24C01BN_LLD_I2C_ADDR_FIXED | at24c01bn->addr), writedata, 2, NULL, 0, timeout);
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}
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/**
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 * @brief Write a page to the eeprom.
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 * @param[in]   at24c01bn The eeprom driver to use.
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 * @param[in]   addr      The address to start writing.
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 * @param[in]   data      The data to be written to the AT24C01BN.
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 * @param[in]   num       The amount of bytes to write.
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 * @param[in]   timeout   Timeout for the function to return (in microseconds)
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 *
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 * @return  The return status indicates whether the function call was succesfull or a timeout occurred.
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 */
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apalExitStatus_t at24c01bn_lld_write_page(const AT24C01BNDriver* const at24c01bn, const uint8_t addr, const uint8_t* const data, const uint8_t num, const apalTime_t timeout)
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{
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  apalDbgAssert(at24c01bn != NULL);
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  apalDbgAssert(data != NULL);
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  uint8_t writedata[num+1];
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  writedata[0] = addr;
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  memcpy(&writedata[1], data, num);
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  return apalI2CMasterTransmit(at24c01bn->i2cd, (AT24C01BN_LLD_I2C_ADDR_FIXED | at24c01bn->addr), writedata, num+1, NULL, 0, timeout);
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}
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#endif /* defined(AMIROLLD_CFG_USE_AT24C01BN) */
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/** @} */