Diff: targets/hal/TARGET_Freescale/TARGET_KSDK2_MCUS/TARGET_KL43Z/drivers/fsl_dmamux.c

Revision:

144:ef7eb2e8f9f7

diff -r 423e1876dc07 -r ef7eb2e8f9f7 targets/hal/TARGET_Freescale/TARGET_KSDK2_MCUS/TARGET_KL43Z/drivers/fsl_dmamux.c
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/targets/hal/TARGET_Freescale/TARGET_KSDK2_MCUS/TARGET_KL43Z/drivers/fsl_dmamux.c	Fri Sep 02 15:07:44 2016 +0100
@@ -0,0 +1,87 @@
+/*
+ * 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_dmamux.h"
+
+/*******************************************************************************
+ * Definitions
+ ******************************************************************************/
+
+/*******************************************************************************
+ * Prototypes
+ ******************************************************************************/
+
+/*!
+ * @brief Get instance number for DMAMUX.
+ *
+ * @param base DMAMUX peripheral base address.
+ */
+static uint32_t DMAMUX_GetInstance(DMAMUX_Type *base);
+
+/*******************************************************************************
+ * Variables
+ ******************************************************************************/
+
+/*! @brief Array to map DMAMUX instance number to base pointer. */
+static DMAMUX_Type *const s_dmamuxBases[] = DMAMUX_BASE_PTRS;
+
+/*! @brief Array to map DMAMUX instance number to clock name. */
+static const clock_ip_name_t s_dmamuxClockName[] = DMAMUX_CLOCKS;
+
+/*******************************************************************************
+ * Code
+ ******************************************************************************/
+static uint32_t DMAMUX_GetInstance(DMAMUX_Type *base)
+{
+    uint32_t instance;
+
+    /* Find the instance index from base address mappings. */
+    for (instance = 0; instance < FSL_FEATURE_SOC_DMAMUX_COUNT; instance++)
+    {
+        if (s_dmamuxBases[instance] == base)
+        {
+            break;
+        }
+    }
+
+    assert(instance < FSL_FEATURE_SOC_DMAMUX_COUNT);
+
+    return instance;
+}
+
+void DMAMUX_Init(DMAMUX_Type *base)
+{
+    CLOCK_EnableClock(s_dmamuxClockName[DMAMUX_GetInstance(base)]);
+}
+
+void DMAMUX_Deinit(DMAMUX_Type *base)
+{
+    CLOCK_DisableClock(s_dmamuxClockName[DMAMUX_GetInstance(base)]);
+}