Diego Ostuni
Fork of the GitHub
Diff: st25r3911_interrupt.cpp
- Revision:
- 0:98fcd1266df0
diff -r 000000000000 -r 98fcd1266df0 st25r3911_interrupt.cpp
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/st25r3911_interrupt.cpp Thu Nov 14 14:36:52 2019 +0000
@@ -0,0 +1,236 @@
+
+/******************************************************************************
+ * @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 ST25R3911 Interrupt handling
+ *
+ */
+
+/*
+******************************************************************************
+* INCLUDES
+******************************************************************************
+*/
+#include "st25r3911_interrupt.h"
+#include "st25r3911_com.h"
+#include "ST25R3911.h"
+#include "st_errno.h"
+#include "utils.h"
+#include "rfal_rf.h"
+
+
+/*
+******************************************************************************
+* GLOBAL DEFINES
+******************************************************************************
+*/
+
+/*! Length of the interrupt registers */
+#define ST25R3911_INT_REGS_LEN ( (ST25R3911_REG_IRQ_ERROR_WUP - ST25R3911_REG_IRQ_MAIN) + 1 )
+
+/*
+ ******************************************************************************
+ * LOCAL DATA TYPES
+ ******************************************************************************
+ */
+
+/*! Holds current and previous interrupt callback pointer as well as current Interrupt status and mask */
+typedef struct s_st25r3911Interrupt
+{
+ void (*prevCallback)(); /*!< call back function for 3911 interrupt */
+ void (*callback)(); /*!< call back function for 3911 interrupt */
+ uint32_t status; /*!< latest interrupt status */
+ uint32_t mask; /*!< Interrupt mask. Negative mask = ST25R3911 mask regs */
+}t_st25r3911Interrupt;
+
+/*
+******************************************************************************
+* GLOBAL VARIABLES
+******************************************************************************
+*/
+
+volatile t_st25r3911Interrupt st25r3911interrupt; /*!< Instance of ST25R3911 interrupt*/
+
+extern volatile bool wakeupFlag;
+/*
+******************************************************************************
+* GLOBAL FUNCTIONS
+******************************************************************************
+*/
+void st25r3911InitInterrupts( DigitalOut* fieldLED_06 )
+{
+
+
+ st25r3911interrupt.callback = NULL;
+ st25r3911interrupt.prevCallback = NULL;
+ st25r3911interrupt.status = 0;
+ st25r3911interrupt.mask = 0;
+
+ fieldLED_06 -> write(0);
+
+}
+
+void st25r3911Isr( 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 )
+{
+ st25r3911CheckForReceivedInterrupts(mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+
+ if (NULL != st25r3911interrupt.callback)
+ st25r3911interrupt.callback;
+}
+
+void st25r3911CheckForReceivedInterrupts( 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 iregs[ST25R3911_INT_REGS_LEN];
+ uint32_t irqStatus;
+
+ ST_MEMSET( iregs, (uint8_t)ST25R3911_IRQ_MASK_ALL, ST25R3911_INT_REGS_LEN );
+
+
+
+ mST25 -> readMultipleRegisters(ST25R3911_REG_IRQ_MAIN, iregs, sizeof(iregs), mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+
+ if (iregs[0] & ST25R3911_IRQ_MASK_TXE)
+ {
+ fieldLED_06 -> write(1);
+ }
+
+
+
+ irqStatus = (uint32_t)iregs[0];
+ irqStatus |= (uint32_t)iregs[1]<<8;
+ irqStatus |= (uint32_t)iregs[2]<<16;
+ /* forward all interrupts, even masked ones to application. */
+ st25r3911interrupt.status |= irqStatus;
+
+}
+
+
+void st25r3911ModifyInterrupts(uint32_t clr_mask, uint32_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 )
+{
+ int i;
+ uint32_t old_mask;
+ uint32_t new_mask;
+
+ old_mask = st25r3911interrupt.mask;
+ new_mask = (~old_mask & set_mask) | (old_mask & clr_mask);
+ st25r3911interrupt.mask &= ~clr_mask;
+ st25r3911interrupt.mask |= set_mask;
+ for (i=0; i<3 ; i++)
+ {
+ if (! ((new_mask >> (8*i)) & 0xff)) continue;
+ mST25 -> writeRegister(ST25R3911_REG_IRQ_MASK_MAIN + i, (st25r3911interrupt.mask>>(8*i))&0xff, mspiChannel, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+ }
+ return;
+}
+
+
+uint32_t st25r3911WaitForInterruptsTimed(uint32_t mask, uint16_t tmo, 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 )
+{
+ uint32_t tmr;
+ uint32_t status;
+
+ tmr = platformTimerCreate(tmo);
+ do
+ {
+ st25r3911Isr(mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+ status = st25r3911interrupt.status & mask;
+ } while ((!status) && !platformTimerIsExpired(tmr));
+
+ status = st25r3911interrupt.status & mask;
+
+ st25r3911interrupt.status &= ~status;
+
+
+ return status;
+}
+
+
+uint32_t st25r3911GetInterrupt(uint32_t 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 )
+{
+ st25r3911Isr(mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+
+ mask &= st25r3911interrupt.status;
+
+ if (mask)
+ {
+ st25r3911interrupt.status &= ~mask;
+
+ }
+ return mask;
+}
+
+void st25r3911EnableInterrupts(uint32_t 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 )
+{
+ st25r3911ModifyInterrupts(mask,0, mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+}
+
+void st25r3911DisableInterrupts(uint32_t 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 )
+{
+ st25r3911ModifyInterrupts(0,mask, mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+}
+
+void st25r3911ClearInterrupts( 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 iregs[3];
+
+ mST25 -> readMultipleRegisters(ST25R3911_REG_IRQ_MAIN, iregs, 3, mspiChannel, mST25, gpio_cs, IRQ, fieldLED_01, fieldLED_02, fieldLED_03, fieldLED_04, fieldLED_05, fieldLED_06 ) ;
+
+ st25r3911interrupt.status = 0;
+
+
+ return;
+}
+
+void st25r3911IRQCallbackSet( void (*cb)() )
+{
+ st25r3911interrupt.prevCallback = st25r3911interrupt.callback;
+ st25r3911interrupt.callback = cb;
+}
+
+void st25r3911IRQCallbackRestore( void )
+{
+ st25r3911interrupt.callback = st25r3911interrupt.prevCallback;
+ st25r3911interrupt.prevCallback = NULL;
+}
+
+uint8_t st25r3911ChipHasWoke( void )
+{
+ uint8_t flagWake = 0;
+
+ if( (st25r3911interrupt.status & 0x0001) == 1 )
+ {
+ flagWake = 1;
+ }
+ return flagWake;
+}
+
+