st25r3911_com.cpp

00001 
00002 /******************************************************************************
00003   * @attention
00004   *
00005   * <h2><center>&copy; COPYRIGHT 2016 STMicroelectronics</center></h2>
00006   *
00007   * Licensed under ST MYLIBERTY SOFTWARE LICENSE AGREEMENT (the "License");
00008   * You may not use this file except in compliance with the License.
00009   * You may obtain a copy of the License at:
00010   *
00011   *        http://www.st.com/myliberty
00012   *
00013   * Unless required by applicable law or agreed to in writing, software 
00014   * distributed under the License is distributed on an "AS IS" BASIS, 
00015   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied,
00016   * AND SPECIFICALLY DISCLAIMING THE IMPLIED WARRANTIES OF MERCHANTABILITY,
00017   * FITNESS FOR A PARTICULAR PURPOSE, AND NON-INFRINGEMENT.
00018   * See the License for the specific language governing permissions and
00019   * limitations under the License.
00020   *
00021 ******************************************************************************/
00022 
00023 
00024 /*
00025  *      PROJECT:   ST25R3911 firmware
00026  *      $Revision: $
00027  *      LANGUAGE:  ISO C99
00028  */
00029 
00030 /*! \file
00031  *
00032  *  \author Ulrich Herrmann
00033  *
00034  *  \brief Implementation of ST25R3911 communication.
00035  *
00036  */
00037 
00038 /*
00039 ******************************************************************************
00040 * INCLUDES
00041 ******************************************************************************
00042 */
00043 #include "st25r3911_com.h"
00044 
00045 
00046 
00047 
00048 
00049 
00050 /*
00051 ******************************************************************************
00052 * GLOBAL FUNCTIONS
00053 ******************************************************************************
00054 */
00055 
00056 void st25r3911ReadTestRegister(uint8_t reg, uint8_t* val, ST25R3911* mST25, SPI* mspiChannel, DigitalOut* gpio_cs, InterruptIn* IRQ, DigitalOut* fieldLED_01, DigitalOut* fieldLED_02, DigitalOut* fieldLED_03, DigitalOut* fieldLED_04, DigitalOut* fieldLED_05, DigitalOut* fieldLED_06 )
00057 {
00058 
00059 
00060 //  uint8_t rx;
00061   // val rx
00062     mST25 -> executeCommand(ST25R3911_CMD_TEST_ACCESS, mspiChannel, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
00063     mST25 -> readRegister( reg, val, mspiChannel, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
00064 
00065 
00066     return;
00067 }
00068 
00069 void st25r3911WriteTestRegister(uint8_t reg, uint8_t val, ST25R3911* mST25, SPI* mspiChannel, DigitalOut* gpio_cs, InterruptIn* IRQ, DigitalOut* fieldLED_01, DigitalOut* fieldLED_02, DigitalOut* fieldLED_03, DigitalOut* fieldLED_04, DigitalOut* fieldLED_05, DigitalOut* fieldLED_06 )
00070 {
00071 
00072 
00073     mST25 -> executeCommand(ST25R3911_CMD_TEST_ACCESS, mspiChannel, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
00074     mST25 -> writeRegister( reg,  val, mspiChannel,  gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 );
00075 
00076 
00077     return;
00078 }
00079 
00080 
00081 void st25r3911ClrRegisterBits( uint8_t reg, uint8_t clr_mask, SPI* mspiChannel, ST25R3911* mST25, DigitalOut* gpio_cs, InterruptIn* IRQ, DigitalOut* fieldLED_01, DigitalOut* fieldLED_02, DigitalOut* fieldLED_03, DigitalOut* fieldLED_04, DigitalOut* fieldLED_05, DigitalOut* fieldLED_06 )
00082 {
00083     uint8_t tmp;
00084 
00085     mST25 -> readRegister( reg,  &tmp, mspiChannel, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
00086     tmp &= ~clr_mask;
00087     mST25 -> writeRegister( reg,  tmp, mspiChannel, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
00088     
00089     return;
00090 }
00091 
00092 
00093 void st25r3911SetRegisterBits( uint8_t reg, uint8_t set_mask, SPI* mspiChannel, ST25R3911* mST25, DigitalOut* gpio_cs, InterruptIn* IRQ, DigitalOut* fieldLED_01, DigitalOut* fieldLED_02, DigitalOut* fieldLED_03, DigitalOut* fieldLED_04, DigitalOut* fieldLED_05, DigitalOut* fieldLED_06 )
00094 {
00095     uint8_t tmp;
00096 
00097     mST25 -> readRegister( reg,  &tmp, mspiChannel, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
00098     tmp |= set_mask;
00099     mST25 -> writeRegister( reg,  tmp, mspiChannel, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
00100     
00101     return;
00102 }
00103 
00104 void st25r3911ChangeRegisterBits(uint8_t reg, uint8_t valueMask, uint8_t value, SPI* mspiChannel, ST25R3911* mST25, DigitalOut* gpio_cs, InterruptIn* IRQ, DigitalOut* fieldLED_01, DigitalOut* fieldLED_02, DigitalOut* fieldLED_03, DigitalOut* fieldLED_04, DigitalOut* fieldLED_05, DigitalOut* fieldLED_06 )
00105 {
00106     st25r3911ModifyRegister(reg, valueMask, (valueMask & value), mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
00107 }
00108 
00109 void st25r3911ModifyRegister(uint8_t reg, uint8_t clr_mask, uint8_t set_mask, SPI* mspiChannel, ST25R3911* mST25, DigitalOut* gpio_cs, InterruptIn* IRQ, DigitalOut* fieldLED_01, DigitalOut* fieldLED_02, DigitalOut* fieldLED_03, DigitalOut* fieldLED_04, DigitalOut* fieldLED_05, DigitalOut* fieldLED_06 )
00110 {
00111     uint8_t tmp;
00112 
00113     mST25 -> readRegister( reg,  &tmp, mspiChannel, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
00114 
00115     /* mask out the bits we don't want to change */
00116     tmp &= ~clr_mask;
00117     /* set the new value */
00118     tmp |= set_mask;
00119     mST25 -> writeRegister( reg,  tmp, mspiChannel, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
00120 
00121     return;
00122 }
00123 
00124 void st25r3911ChangeTestRegisterBits( uint8_t reg, uint8_t valueMask, uint8_t value, ST25R3911* mST25, SPI* mspiChannel, DigitalOut* gpio_cs, InterruptIn* IRQ, DigitalOut* fieldLED_01, DigitalOut* fieldLED_02, DigitalOut* fieldLED_03, DigitalOut* fieldLED_04, DigitalOut* fieldLED_05, DigitalOut* fieldLED_06 )
00125 {
00126     uint8_t    rdVal;
00127     uint8_t    wrVal;
00128     
00129     /* Read current reg value */
00130     st25r3911ReadTestRegister(reg, &rdVal, mST25, mspiChannel, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
00131     
00132     /* Compute new value */
00133     wrVal  = (rdVal & ~valueMask);
00134     wrVal |= (value & valueMask);
00135     
00136     /* Write new reg value */
00137     st25r3911WriteTestRegister(reg, wrVal, mST25, mspiChannel, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
00138     
00139     return;
00140 }
00141 
00142 
00143 
00144 bool st25r3911IsRegValid( uint8_t reg )
00145 {
00146     if( !(( (int8_t)reg >= ST25R3911_REG_IO_CONF1) && (reg <= ST25R3911_REG_CAPACITANCE_MEASURE_RESULT)) &&
00147         (reg != ST25R3911_REG_IC_IDENTITY)                                                         )
00148     {
00149         return false;
00150     }
00151     return true;
00152 }
00153 
00154 /*
00155 ******************************************************************************
00156 * LOCAL FUNCTIONS
00157 ******************************************************************************
00158 */
00159