Diff: st25r3911_interrupt.cpp

Revision:

0:98fcd1266df0

--- /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>&copy; 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;
+}
+
+