/****************************************************************************** Product: BSP for EV-LM3S811 board, QK kernel* Last Updated for Version: 4.0.00* Date of the Last Update:  Apr 07, 2008**                    Q u a n t u m     L e a P s*                    ---------------------------*                    innovating embedded systems** Copyright (C) 2002-2008 Quantum Leaps, LLC. All rights reserved.** This software may be distributed and modified under the terms of the GNU* General Public License version 2 (GPL) as published by the Free Software* Foundation and appearing in the file GPL.TXT included in the packaging of* this file. Please note that GPL Section 2[b] requires that all works based* on this software must also be made publicly available under the terms of* the GPL ("Copyleft").** Alternatively, this software may be distributed and modified under the* terms of Quantum Leaps commercial licenses, which expressly supersede* the GPL and are specifically designed for licensees interested in* retaining the proprietary status of their code.** Contact information:* Quantum Leaps Web site:  http://www.quantum-leaps.com* e-mail:                  info@quantum-leaps.com*****************************************************************************/#include "qp_port.h"#include "dpp.h"#include "bsp.h"#include "hw_ints.h"#include "hw_memmap.h"#include "hw_nvic.h"#include "src/adc.h"#include "src/gpio.h"#include "src/interrupt.h"#include "src/timer.h"#include "src/sysctl.h"#include "src/systick.h"Q_DEFINE_THIS_FILE/* Local-scope objects -----------------------------------------------------*/static uint32_t l_delay = 0UL; /* limit for the loop counter in busyDelay() */#define PUSH_BUTTON             GPIO_PIN_4#define USER_LED                GPIO_PIN_5#ifdef Q_SPY    #include "hw_uart.h"    #include "src/uart.h"    QSTimeCtr QS_tickTime_;    QSTimeCtr QS_tickPeriod_;    #define UART_TXFIFO_DEPTH 16    enum AppRecords {                 /* application-specific trace records */        PHILO_STAT = QS_USER    };#endif/*..........................................................................*/void ISR_SysTick(void) {    QK_ISR_ENTRY();                            /* inform QK about ISR entry */#ifdef Q_SPY    {        uint32_t dummy = HWREG(NVIC_ST_CTRL);   /* clear NVIC_ST_CTRL_COUNT */        QS_tickTime_ += QS_tickPeriod_;   /* account for the clock rollover */    }#endif    QF_tick();    QK_ISR_EXIT();                              /* inform QK about ISR exit */}/*..........................................................................*/void ISR_GPIOA(void) {    QK_ISR_ENTRY();                            /* inform QK about ISR entry */    QActive_postFIFO(AO_Table, Q_NEW(QEvent, MAX_PUB_SIG));  /* for testing */    QK_ISR_EXIT();                              /* inform QK about ISR exit */}/*..........................................................................*/void ISR_Nmi(void) {    QK_ISR_ENTRY();                            /* inform QK about ISR entry */    for (;;) {                                   /* sit in an infinite loop */    }    QK_ISR_EXIT();                              /* inform QK about ISR exit */}/*..........................................................................*/void ISR_Fault(void) {    QK_ISR_ENTRY();                            /* inform QK about ISR entry */    for (;;) {                                   /* sit in an infinite loop */    }    QK_ISR_EXIT();                              /* inform QK about ISR exit */}/*..........................................................................*/void ISR_DefaultHandler(void) {    QK_ISR_ENTRY();                            /* inform QK about ISR entry */    for (;;) {                                   /* sit in an infinite loop */    }    QK_ISR_EXIT();                              /* inform QK about ISR exit */}/*..........................................................................*/void BSP_init(int argc, char *argv[]) {    (void)argc;                       /* unused: avoid the complier warning */    (void)argv;                       /* unused: avoid the compiler warning */    /* Set the clocking to run at 20MHz from the PLL */    SysCtlClockSet(SYSCTL_SYSDIV_10  | SYSCTL_USE_PLL                   | SYSCTL_OSC_MAIN | SYSCTL_XTAL_6MHZ);    /* Enable the peripherals used by the application */    SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOA);    SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOC);    SysCtlPeripheralEnable(SYSCTL_PERIPH_TIMER0);    /* Configure the LED, push button, and UART GPIOs as required. */    GPIODirModeSet(GPIO_PORTA_BASE, GPIO_PIN_0 | GPIO_PIN_1,                   GPIO_DIR_MODE_HW);    GPIODirModeSet(GPIO_PORTC_BASE, PUSH_BUTTON, GPIO_DIR_MODE_IN);    GPIODirModeSet(GPIO_PORTC_BASE, USER_LED, GPIO_DIR_MODE_OUT);    GPIOPinWrite(GPIO_PORTC_BASE, USER_LED, 0);    /* Initialize the OSRAM OLED display. */    OSRAMInit(1);    OSRAMStringDraw("Dining Philos", 0, 0);    OSRAMStringDraw("0 ,1 ,2 ,3 ,4", 0, 1);    if (!QS_INIT((void *)0)) {        /* initialize the QS software tracing */        Q_ERROR();    }}/*..........................................................................*/void BSP_displyPhilStat(uint8_t n, char const *stat) {    char str[2];    str[0] = stat[0];    str[1] = '\0';    OSRAMStringDraw(str, (3*6*n + 6), 1);    QS_BEGIN(PHILO_STAT, AO_Philo[n])  /* application-specific record begin */        QS_U8(1, n);                                  /* Philosopher number */        QS_STR(stat);                                 /* Philosopher status */    QS_END()}/*..........................................................................*/void BSP_driveLED(uint8_t state) {    GPIOPinWrite(GPIO_PORTC_BASE, USER_LED, (state ? USER_LED : 0));}/*..........................................................................*/void BSP_busyDelay(void) {    uint32_t volatile i = l_delay;    while (i-- > 0UL) {                                   /* busy-wait loop */    }}/*..........................................................................*/void QF_onStartup(void) {    /* Set up and enable the SysTick timer.  It will be used as a reference    * for delay loops in the interrupt handlers.  The SysTick timer period    * will be set up for BSP_TICKS_PER_SEC.    */    SysTickPeriodSet(SysCtlClockGet() / BSP_TICKS_PER_SEC);    SysTickEnable();    IntPrioritySet(FAULT_SYSTICK, 0xC0);     /* set the priority of SysTick */    SysTickIntEnable();                    /* Enable the SysTick interrupts */    /* GPIOA interrupt is used for testing preemptions */    IntEnable(INT_GPIOA);    IntPrioritySet(INT_GPIOA, 0x80);    QF_INT_UNLOCK(dummy);              /* set the interrupt flag in PRIMASK */}/*..........................................................................*/void QF_onCleanup(void) {}/*..........................................................................*/void QK_onIdle(void) {    /* toggle the User LED on and then off, see NOTE02 */    QF_INT_LOCK(dummy);    GPIOPinWrite(GPIO_PORTC_BASE, USER_LED, USER_LED);       /* User LED on */    GPIOPinWrite(GPIO_PORTC_BASE, USER_LED, 0);             /* User LED off */    QF_INT_UNLOCK(dummy);#ifdef Q_SPY    if ((HWREG(UART0_BASE + UART_O_FR) & UART_FR_TXFE) != 0) {  /* TX done? */        uint16_t fifo = UART_TXFIFO_DEPTH;       /* max bytes we can accept */        uint8_t const *block;        QF_INT_LOCK(dummy);        block = QS_getBlock(&fifo);    /* try to get next block to transmit */        QF_INT_UNLOCK(dummy);        while (fifo-- != 0) {                    /* any bytes in the block? */            HWREG(UART0_BASE + UART_O_DR) = *block++;  /* put into the FIFO */        }    }#elif defined NDEBUG    /* Put the CPU and peripherals to the low-power mode.    * you might need to customize the clock management for your application,    * see the datasheet for your particular Cortex-M3 MCU.    */    __asm("WFI");                                     /* Wait-For-Interrupt */#endif}/*..........................................................................*/void Q_onAssert(char const Q_ROM * const Q_ROM_VAR file, int line) {    (void)file;                                   /* avoid compiler warning */    (void)line;                                   /* avoid compiler warning */    QF_INT_LOCK(dummy);      /* make sure that all interrupts are disabled */    for (;;) {       /* NOTE: replace the loop with reset for final version */    }}/* error routine that is called if the Luminary library encounters an error */void __error__(char *pcFilename, unsigned long ulLine) {    Q_onAssert(pcFilename, ulLine);}/*--------------------------------------------------------------------------*/#ifdef Q_SPY/*..........................................................................*/uint8_t QS_onStartup(void const *arg) {    static uint8_t qsBuf[6*256];                  /* buffer for Quantum Spy */    QS_initBuf(qsBuf, sizeof(qsBuf));                                 /* enable the peripherals used by the UART */    SysCtlPeripheralEnable(SYSCTL_PERIPH_UART0);    SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOA);    GPIOPinTypeUART(GPIO_PORTA_BASE, GPIO_PIN_0 | GPIO_PIN_1);                         /* configure the UART for 115,200, 8-N-1 operation */    UARTConfigSet(UART0_BASE, 115200, (UART_CONFIG_WLEN_8 |                                       UART_CONFIG_STOP_ONE |                                       UART_CONFIG_PAR_NONE));    UARTEnable(UART0_BASE);        /* set UARTEN, TXE, RXE and enable FIFOs */    QS_tickPeriod_ = (QSTimeCtr)(SysCtlClockGet() / BSP_TICKS_PER_SEC);    QS_tickTime_ = QS_tickPeriod_;        /* to start the timestamp at zero */    return (uint8_t)1;                                    /* return success */}/*..........................................................................*/void QS_onCleanup(void) {}/*..........................................................................*/QSTimeCtr QS_onGetTime(void) {            /* invoked with interrupts locked */    if ((HWREG(NVIC_ST_CTRL) & NVIC_ST_CTRL_COUNT) == 0) { /* COUNT no set? */        return QS_tickTime_ - (QSTimeCtr)HWREG(NVIC_ST_CURRENT);    }    else {     /* the rollover occured, but the SysTick_ISR did not run yet */        return QS_tickTime_ + QS_tickPeriod_               - (QSTimeCtr)HWREG(NVIC_ST_CURRENT);    }}/*..........................................................................*/void QS_onFlush(void) {    uint16_t fifo = UART_TXFIFO_DEPTH;                     /* Tx FIFO depth */    uint8_t const *block;    QF_INT_LOCK(dummy);    while ((block = QS_getBlock(&fifo)) != (uint8_t *)0) {        QF_INT_UNLOCK(dummy);                                           /* busy-wait until TX FIFO empty */        while ((HWREG(UART0_BASE + UART_O_FR) & UART_FR_TXFE) == 0) {        }        while (fifo-- != 0) {                    /* any bytes in the block? */            HWREG(UART0_BASE + UART_O_DR) = *block++;  /* put into the FIFO */        }        fifo = UART_TXFIFO_DEPTH;              /* re-load the Tx FIFO depth */        QF_INT_LOCK(dummy);    }    QF_INT_UNLOCK(dummy);}#endif                                                             /* Q_SPY *//*--------------------------------------------------------------------------*//****************************************************************************** NOTE01:* The QF::onIdle() callback is called with interrupts locked, because the* determination of the idle condition might change by any interrupt posting* an event. QF::onIdle() must internally unlock interrupts, ideally* atomically with putting the CPU to the power-saving mode.** NOTE02:* The User LED is used to visualize the idle loop activity. The brightness* of the LED is proportional to the frequency of invcations of the idle loop.* Please note that the LED is toggled with interrupts locked, so no interrupt* execution time contributes to the brightness of the User LED.*/