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Diff: st25r3911_com.cpp
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- 0:98fcd1266df0
diff -r 000000000000 -r 98fcd1266df0 st25r3911_com.cpp --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/st25r3911_com.cpp Thu Nov 14 14:36:52 2019 +0000 @@ -0,0 +1,159 @@ + +/****************************************************************************** + * @attention + * + * <h2><center>© COPYRIGHT 2016 STMicroelectronics</center></h2> + * + * Licensed under ST MYLIBERTY SOFTWARE LICENSE AGREEMENT (the "License"); + * You may not use this file except in compliance with the License. + * You may obtain a copy of the License at: + * + * http://www.st.com/myliberty + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied, + * AND SPECIFICALLY DISCLAIMING THE IMPLIED WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE, AND NON-INFRINGEMENT. + * See the License for the specific language governing permissions and + * limitations under the License. + * +******************************************************************************/ + + +/* + * PROJECT: ST25R3911 firmware + * $Revision: $ + * LANGUAGE: ISO C99 + */ + +/*! \file + * + * \author Ulrich Herrmann + * + * \brief Implementation of ST25R3911 communication. + * + */ + +/* +****************************************************************************** +* INCLUDES +****************************************************************************** +*/ +#include "st25r3911_com.h" + + + + + + +/* +****************************************************************************** +* GLOBAL FUNCTIONS +****************************************************************************** +*/ + +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 ) +{ + + +// uint8_t rx; + // val rx + mST25 -> executeCommand(ST25R3911_CMD_TEST_ACCESS, mspiChannel, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ; + mST25 -> readRegister( reg, val, mspiChannel, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ; + + + return; +} + +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 ) +{ + + + mST25 -> executeCommand(ST25R3911_CMD_TEST_ACCESS, mspiChannel, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ; + mST25 -> writeRegister( reg, val, mspiChannel, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ); + + + return; +} + + +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 ) +{ + uint8_t tmp; + + mST25 -> readRegister( reg, &tmp, mspiChannel, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ; + tmp &= ~clr_mask; + mST25 -> writeRegister( reg, tmp, mspiChannel, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ; + + return; +} + + +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 ) +{ + uint8_t tmp; + + mST25 -> readRegister( reg, &tmp, mspiChannel, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ; + tmp |= set_mask; + mST25 -> writeRegister( reg, tmp, mspiChannel, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ; + + return; +} + +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 ) +{ + st25r3911ModifyRegister(reg, valueMask, (valueMask & value), mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ; +} + +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 ) +{ + uint8_t tmp; + + mST25 -> readRegister( reg, &tmp, mspiChannel, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ; + + /* mask out the bits we don't want to change */ + tmp &= ~clr_mask; + /* set the new value */ + tmp |= set_mask; + mST25 -> writeRegister( reg, tmp, mspiChannel, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ; + + return; +} + +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 ) +{ + uint8_t rdVal; + uint8_t wrVal; + + /* Read current reg value */ + st25r3911ReadTestRegister(reg, &rdVal, mST25, mspiChannel, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ; + + /* Compute new value */ + wrVal = (rdVal & ~valueMask); + wrVal |= (value & valueMask); + + /* Write new reg value */ + st25r3911WriteTestRegister(reg, wrVal, mST25, mspiChannel, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ; + + return; +} + + + +bool st25r3911IsRegValid( uint8_t reg ) +{ + if( !(( (int8_t)reg >= ST25R3911_REG_IO_CONF1) && (reg <= ST25R3911_REG_CAPACITANCE_MEASURE_RESULT)) && + (reg != ST25R3911_REG_IC_IDENTITY) ) + { + return false; + } + return true; +} + +/* +****************************************************************************** +* LOCAL FUNCTIONS +****************************************************************************** +*/ +