initial commit, FreeRTOS_BSP_1.0.0_iMX7D

1 files changed, 169 insertions, 0 deletions

diff --git a/platform/drivers/inc/wdog_imx.h b/platform/drivers/inc/wdog_imx.h
new file mode 100644
index 0000000..42b982e
--- /dev/null
+++ b/platform/drivers/inc/wdog_imx.h
@@ -0,0 +1,169 @@
+/*
+ * 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.
+ */
+
+#ifndef __WDOG_IMX_H__
+#define __WDOG_IMX_H__
+
+#include <stdint.h>
+#include <stdbool.h>
+#include <assert.h>
+#include "device_imx.h"
+
+/*!
+ * @addtogroup wdog_imx_driver
+ * @{
+ */
+
+/*******************************************************************************
+ * Definitions
+ ******************************************************************************/
+/*!
+ * @brief Structure to configure the running mode.
+ */
+typedef struct WdogModeConfig
+{
+    bool wdw;     /*!< true: suspend in low power wait, false: not suspend */
+    bool wdt;     /*!< true: assert WDOG_B when timeout, false: not assert WDOG_B */
+    bool wdbg;    /*!< true: suspend in debug mode, false: not suspend */
+    bool wdzst;   /*!< true: suspend in doze and stop mode, false: not suspend */
+} wdog_mode_config_t;
+
+/*******************************************************************************
+ * API
+ ******************************************************************************/
+
+#if defined(__cplusplus)
+extern "C" {
+#endif
+
+/*!
+ * @name WDOG State Control
+ * @{
+ */
+
+/*!
+ * @brief Configure WDOG funtions, call once only
+ *
+ * @param base WDOG base pointer.
+ * @param config WDOG mode configuration
+ */
+static inline void WDOG_Init(WDOG_Type *base, wdog_mode_config_t *config)
+{
+    base->WCR |= config->wdw   ? WDOG_WCR_WDW_MASK   : 0 |
+                 config->wdt   ? WDOG_WCR_WDT_MASK   : 0 |
+                 config->wdbg  ? WDOG_WCR_WDBG_MASK  : 0 |
+                 config->wdzst ? WDOG_WCR_WDZST_MASK : 0;
+}
+
+/*!
+ * @brief Enable WDOG with timeout, call once only
+ *
+ * @param base WDOG base pointer.
+ * @param timeout WDOG timeout ((n+1)/2 second)
+ */
+void WDOG_Enable(WDOG_Type *base, uint8_t timeout);
+
+/*!
+ * @brief Assert WDOG software reset signal
+ *
+ * @param base WDOG base pointer.
+ * @param wda WDOG reset (true: assert WDOG_B, false: no impact on WDOG_B)
+ * @param srs System reset (true: assert system reset WDOG_RESET_B_DEB, false: no impact on system reset)
+ */
+void WDOG_Reset(WDOG_Type *base, bool wda, bool srs);
+
+/*!
+ * @brief Refresh the WDOG to prevent timeout
+ *
+ * @param base WDOG base pointer.
+ */
+void WDOG_Refresh(WDOG_Type *base);
+
+/*!
+ * @brief Disable WDOG power down counter
+ *
+ * @param base WDOG base pointer.
+ */
+static inline void WDOG_DisablePowerdown(WDOG_Type *base)
+{
+    base->WMCR &= ~WDOG_WMCR_PDE_MASK;
+}
+
+/*@}*/
+
+/*!
+ * @name WDOG Interrupt Control
+ * @{
+ */
+
+/*!
+ * @brief Enable WDOG interrupt
+ *
+ * @param base WDOG base pointer.
+ * @param time how long before the timeout must the interrupt occur (n/2 seconds).
+ */
+static inline void WDOG_EnableInt(WDOG_Type *base, uint8_t time)
+{
+    base->WICR = WDOG_WICR_WIE_MASK | WDOG_WICR_WICT(time);
+}
+
+/*!
+ * @brief Check whether WDOG interrupt is pending
+ *
+ * @param base WDOG base pointer.
+ * @return WDOG interrupt status (true: pending, false: not pending)
+ */
+static inline bool WDOG_IsIntPending(WDOG_Type *base)
+{
+    return (bool)(base->WICR & WDOG_WICR_WTIS_MASK);
+}
+
+/*!
+ * @brief Clear WDOG interrupt status
+ *
+ * @param base WDOG base pointer.
+ */
+static inline void WDOG_ClearStatusFlag(WDOG_Type *base)
+{
+    base->WICR |= WDOG_WICR_WTIS_MASK;
+}
+
+/*@}*/
+
+#if defined(__cplusplus)
+}
+#endif
+
+/*! @}*/
+
+#endif /* __WDOG_IMX_H__ */
+/*******************************************************************************
+ * EOF
+ ******************************************************************************/