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-rw-r--r--platform/drivers/src/gpt.c91
1 files changed, 91 insertions, 0 deletions
diff --git a/platform/drivers/src/gpt.c b/platform/drivers/src/gpt.c
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+++ b/platform/drivers/src/gpt.c
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+/*
+ * 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 "gpt.h"
+
+/*******************************************************************************
+ * Code
+ ******************************************************************************/
+
+/*FUNCTION**********************************************************************
+ *
+ * Function Name : GPT_Init
+ * Description : Initialize GPT to reset state and initialize running mode
+ *
+ *END**************************************************************************/
+void GPT_Init(GPT_Type * base, gpt_mode_config_t *config)
+{
+ assert(config);
+
+ base->CR = 0;
+
+ GPT_SoftReset(base);
+
+ base->CR = (config->freeRun ? GPT_CR_FRR_MASK : 0) |
+ (config->waitEnable ? GPT_CR_WAITEN_MASK : 0) |
+ (config->stopEnable ? GPT_CR_STOPEN_MASK : 0) |
+ (config->dozeEnable ? GPT_CR_DOZEEN_MASK : 0) |
+ (config->dbgEnable ? GPT_CR_DBGEN_MASK : 0) |
+ (config->enableMode ? GPT_CR_ENMOD_MASK : 0);
+}
+
+/*FUNCTION**********************************************************************
+ *
+ * Function Name : GPT_SetClockSource
+ * Description : Set clock source of GPT
+ *
+ *END**************************************************************************/
+void GPT_SetClockSource(GPT_Type * base, uint32_t source)
+{
+ assert(source <= gptClockSourceOsc);
+
+ if (source == gptClockSourceOsc)
+ base->CR = (base->CR & ~GPT_CR_CLKSRC_MASK) | GPT_CR_ENABLE_24MHZ_MASK | GPT_CR_CLKSRC(source);
+ else
+ base->CR = (base->CR & ~(GPT_CR_CLKSRC_MASK | GPT_CR_ENABLE_24MHZ_MASK)) | GPT_CR_CLKSRC(source);
+}
+
+/*FUNCTION**********************************************************************
+ *
+ * Function Name : GPT_SetIntCmd
+ * Description : Enable or disable GPT interrupts
+ *
+ *END**************************************************************************/
+void GPT_SetIntCmd(GPT_Type * base, uint32_t flags, bool enable)
+{
+ if (enable)
+ base->IR |= flags;
+ else
+ base->IR &= ~flags;
+}
+
+/*******************************************************************************
+ * EOF
+ ******************************************************************************/