Diff: targets/hal/TARGET_Freescale/TARGET_KSDK2_MCUS/TARGET_K66F/drivers/fsl_wdog.c

Revision:

144:ef7eb2e8f9f7

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/targets/hal/TARGET_Freescale/TARGET_KSDK2_MCUS/TARGET_K66F/drivers/fsl_wdog.c	Fri Sep 02 15:07:44 2016 +0100
@@ -0,0 +1,153 @@
+/*
+ * Copyright (c) 2015, Freescale Semiconductor, Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ * o Redistributions of source code must retain the above copyright notice, this list
+ *   of conditions and the following disclaimer.
+ *
+ * o Redistributions in binary form must reproduce the above copyright notice, this
+ *   list of conditions and the following disclaimer in the documentation and/or
+ *   other materials provided with the distribution.
+ *
+ * o Neither the name of Freescale Semiconductor, Inc. nor the names of its
+ *   contributors may be used to endorse or promote products derived from this
+ *   software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
+ * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "fsl_wdog.h"
+
+/*******************************************************************************
+ * Code
+ ******************************************************************************/
+
+void WDOG_GetDefaultConfig(wdog_config_t *config)
+{
+    assert(config);
+
+    config->enableWdog = true;
+    config->clockSource = kWDOG_LpoClockSource;
+    config->prescaler = kWDOG_ClockPrescalerDivide1;
+#if defined(FSL_FEATURE_WDOG_HAS_WAITEN) && FSL_FEATURE_WDOG_HAS_WAITEN
+    config->workMode.enableWait = true;
+#endif /* FSL_FEATURE_WDOG_HAS_WAITEN */
+    config->workMode.enableStop = false;
+    config->workMode.enableDebug = false;
+    config->enableUpdate = true;
+    config->enableInterrupt = false;
+    config->enableWindowMode = false;
+    config->windowValue = 0U;
+    config->timeoutValue = 0xFFFFU;
+}
+
+void WDOG_Init(WDOG_Type *base, const wdog_config_t *config)
+{
+    assert(config);
+
+    uint32_t value = 0U;
+    uint32_t primaskValue = 0U;
+
+    value = WDOG_STCTRLH_WDOGEN(config->enableWdog) | WDOG_STCTRLH_CLKSRC(config->clockSource) |
+            WDOG_STCTRLH_IRQRSTEN(config->enableInterrupt) | WDOG_STCTRLH_WINEN(config->enableWindowMode) |
+            WDOG_STCTRLH_ALLOWUPDATE(config->enableUpdate) | WDOG_STCTRLH_DBGEN(config->workMode.enableDebug) |
+            WDOG_STCTRLH_STOPEN(config->workMode.enableStop) |
+#if defined(FSL_FEATURE_WDOG_HAS_WAITEN) && FSL_FEATURE_WDOG_HAS_WAITEN
+            WDOG_STCTRLH_WAITEN(config->workMode.enableWait) |
+#endif /* FSL_FEATURE_WDOG_HAS_WAITEN */
+            WDOG_STCTRLH_DISTESTWDOG(1U);
+
+    /* Disable the global interrupts. Otherwise, an interrupt could effectively invalidate the unlock sequence
+     * and the WCT may expire. After the configuration finishes, re-enable the global interrupts. */
+    primaskValue = DisableGlobalIRQ();
+    WDOG_Unlock(base);
+    /* Wait one bus clock cycle */
+    base->RSTCNT = 0U;
+    /* Set configruation */
+    base->PRESC = WDOG_PRESC_PRESCVAL(config->prescaler);
+    base->WINH = (uint16_t)((config->windowValue >> 16U) & 0xFFFFU);
+    base->WINL = (uint16_t)((config->windowValue) & 0xFFFFU);
+    base->TOVALH = (uint16_t)((config->timeoutValue >> 16U) & 0xFFFFU);
+    base->TOVALL = (uint16_t)((config->timeoutValue) & 0xFFFFU);
+    base->STCTRLH = value;
+    EnableGlobalIRQ(primaskValue);
+}
+
+void WDOG_Deinit(WDOG_Type *base)
+{
+    uint32_t primaskValue = 0U;
+
+    /* Disable the global interrupts */
+    primaskValue = DisableGlobalIRQ();
+    WDOG_Unlock(base);
+    /* Wait one bus clock cycle */
+    base->RSTCNT = 0U;
+    WDOG_Disable(base);
+    EnableGlobalIRQ(primaskValue);
+    WDOG_ClearResetCount(base);
+}
+
+void WDOG_SetTestModeConfig(WDOG_Type *base, wdog_test_config_t *config)
+{
+    assert(config);
+
+    uint32_t value = 0U;
+    uint32_t primaskValue = 0U;
+
+    value = WDOG_STCTRLH_DISTESTWDOG(0U) | WDOG_STCTRLH_TESTWDOG(1U) | WDOG_STCTRLH_TESTSEL(config->testMode) |
+            WDOG_STCTRLH_BYTESEL(config->testedByte) | WDOG_STCTRLH_IRQRSTEN(0U) | WDOG_STCTRLH_WDOGEN(1U) |
+            WDOG_STCTRLH_ALLOWUPDATE(1U);
+
+    /* Disable the global interrupts. Otherwise, an interrupt could effectively invalidate the unlock sequence
+     * and the WCT may expire. After the configuration finishes, re-enable the global interrupts. */
+    primaskValue = DisableGlobalIRQ();
+    WDOG_Unlock(base);
+    /* Wait one bus clock cycle */
+    base->RSTCNT = 0U;
+    /* Set configruation */
+    base->TOVALH = (uint16_t)((config->timeoutValue >> 16U) & 0xFFFFU);
+    base->TOVALL = (uint16_t)((config->timeoutValue) & 0xFFFFU);
+    base->STCTRLH = value;
+    EnableGlobalIRQ(primaskValue);
+}
+
+uint32_t WDOG_GetStatusFlags(WDOG_Type *base)
+{
+    uint32_t status_flag = 0U;
+
+    status_flag |= (base->STCTRLH & WDOG_STCTRLH_WDOGEN_MASK);
+    status_flag |= (base->STCTRLL & WDOG_STCTRLL_INTFLG_MASK);
+
+    return status_flag;
+}
+
+void WDOG_ClearStatusFlags(WDOG_Type *base, uint32_t mask)
+{
+    if (mask & kWDOG_TimeoutFlag)
+    {
+        base->STCTRLL |= WDOG_STCTRLL_INTFLG_MASK;
+    }
+}
+
+void WDOG_Refresh(WDOG_Type *base)
+{
+    uint32_t primaskValue = 0U;
+
+    /* Disable the global interrupt to protect refresh sequence */
+    primaskValue = DisableGlobalIRQ();
+    base->REFRESH = WDOG_FIRST_WORD_OF_REFRESH;
+    base->REFRESH = WDOG_SECOND_WORD_OF_REFRESH;
+    EnableGlobalIRQ(primaskValue);
+}