wolfssl-w32/IDE/AURIX/Cpu0_Main.c

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/* Cpu0_Main.c
*
* Copyright (C) 2006-2023 wolfSSL Inc.
*
* This file is part of wolfSSL.
*
* wolfSSL is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* wolfSSL is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1335, USA
*/
/* Infineon includes */
#include "Ifx_Types.h"
#include "IfxCpu.h"
#include "IfxScuWdt.h"
#include "IfxAsclin_Asc.h"
#include "IfxCpu_Irq.h"
#include "IfxPort.h"
#include "SysSe/Bsp/Bsp.h"
/* For mapping stdio printf */
#include <stdio.h>
#include <string.h>
/* used to wait for CPU sync event */
IFX_ALIGN(4) IfxCpu_syncEvent g_cpuSyncEvent = 0;
#define SERIAL_BAUDRATE 115200 /* Baud rate in bit/s */
#define SERIAL_PIN_RX IfxAsclin0_RXA_P14_1_IN /* RX pin of the board */
#define SERIAL_PIN_TX IfxAsclin0_TX_P14_0_OUT /* TX pin of the board */
#define INTPRIO_ASCLIN0_TX 19 /* Priority of the ISR */
#define ASC_TX_BUFFER_SIZE 128 /* Definition of the buffer size */
/* Declaration of the ASC handle */
static IfxAsclin_Asc g_asc;
/* Declaration of the FIFOs parameters:
* The transfer buffers allocate memory for the data itself and for FIFO runtime
* variables. 8 more bytes have to be added to ensure a proper circular buffer
* handling independent from the address to which the buffers have been located.
*/
static uint8 g_ascTxBuffer[ASC_TX_BUFFER_SIZE + sizeof(Ifx_Fifo) + 8];
/******************************************************************************/
/*----Function Implementations------------------------------------------------*/
/******************************************************************************/
/* Re-target the C library printf function to the asc lin. */
int fputc(int ch, FILE *f)
{
Ifx_SizeT count;
/* convert to CRLF */
if (ch == (int)'\n') {
int chcr = (int)'\r';
count = 1;
IfxAsclin_Asc_write(&g_asc, &chcr, &count, TIME_INFINITE);
}
count = 1;
IfxAsclin_Asc_write(&g_asc, &ch, &count, TIME_INFINITE);
return ch;
}
/* Add the Interrupt Service Routine */
IFX_INTERRUPT(asclin0_Tx_ISR, 0, INTPRIO_ASCLIN0_TX);
void asclin0_Tx_ISR(void)
{
IfxAsclin_Asc_isrTransmit(&g_asc);
}
static void init_UART(void)
{
IfxAsclin_Asc_Config ascConfig;
IfxCpu_Irq_installInterruptHandler(asclin0_Tx_ISR, INTPRIO_ASCLIN0_TX);
/* Port pins configuration */
const IfxAsclin_Asc_Pins pins = {
NULL_PTR, IfxPort_InputMode_pullUp, /* CTS pin not used */
&SERIAL_PIN_RX, IfxPort_InputMode_pullUp, /* RX pin */
NULL_PTR, IfxPort_OutputMode_pushPull, /* RTS pin not used */
&SERIAL_PIN_TX, IfxPort_OutputMode_pushPull, /* TX pin */
IfxPort_PadDriver_cmosAutomotiveSpeed1
};
/* Initialize an instance of IfxAsclin_Asc_Config with default values */
IfxAsclin_Asc_initModuleConfig(&ascConfig, SERIAL_PIN_TX.module);
/* Set the desired baud rate */
ascConfig.baudrate.baudrate = SERIAL_BAUDRATE;
/* ISR priorities and interrupt target */
ascConfig.interrupt.txPriority = INTPRIO_ASCLIN0_TX;
ascConfig.interrupt.typeOfService = IfxCpu_Irq_getTos(IfxCpu_getCoreIndex());
/* FIFO configuration */
ascConfig.txBuffer = &g_ascTxBuffer;
ascConfig.txBufferSize = ASC_TX_BUFFER_SIZE;
ascConfig.pins = &pins;
/* Initialize module with above parameters */
IfxAsclin_Asc_initModule(&g_asc, &ascConfig);
/* Turn off buffers, so I/O occurs immediately */
setvbuf(stdin, NULL, _IONBF, 0);
setvbuf(stdout, NULL, _IONBF, 0);
setvbuf(stderr, NULL, _IONBF, 0);
}
int send_UART(const char* str)
{
Ifx_SizeT count = (Ifx_SizeT)strlen(str);
IfxAsclin_Asc_write(&g_asc, str, &count, TIME_INFINITE);
return (int)count;
}
void core0_main(void)
{
IfxCpu_enableInterrupts();
/* !!WATCHDOG0 AND SAFETY WATCHDOG ARE DISABLED HERE!!
* Enable the watchdogs and service them periodically if it is required
*/
IfxScuWdt_disableCpuWatchdog(IfxScuWdt_getCpuWatchdogPassword());
IfxScuWdt_disableSafetyWatchdog(IfxScuWdt_getSafetyWatchdogPassword());
/* Wait for CPU sync event */
IfxCpu_emitEvent(&g_cpuSyncEvent);
IfxCpu_waitEvent(&g_cpuSyncEvent, 1);
/* Initialize the UART to board VCOM */
init_UART();
/* bare metal loop */
while(1)
{
extern void run_wolf_tests(void);
run_wolf_tests();
/* wait 5 seconds */
waitTime(IfxStm_getTicksFromMilliseconds(BSP_DEFAULT_TIMER, 5 * 1000));
} /* while */
}