Diff: TARGET_EFM32HG_STK3400/TARGET_Silicon_Labs/TARGET_EFM32/emlib/inc/em_prs.h

Revision:

98:8ab26030e058

Child:

113:f141b2784e32

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/TARGET_EFM32HG_STK3400/TARGET_Silicon_Labs/TARGET_EFM32/emlib/inc/em_prs.h	Wed Apr 29 10:16:23 2015 +0100
@@ -0,0 +1,131 @@
+/***************************************************************************//**
+ * @file em_prs.h
+ * @brief Peripheral Reflex System (PRS) peripheral API
+ * @version 3.20.12
+ *******************************************************************************
+ * @section License
+ * <b>(C) Copyright 2014 Silicon Labs, http://www.silabs.com</b>
+ *******************************************************************************
+ *
+ * Permission is granted to anyone to use this software for any purpose,
+ * including commercial applications, and to alter it and redistribute it
+ * freely, subject to the following restrictions:
+ *
+ * 1. The origin of this software must not be misrepresented; you must not
+ *    claim that you wrote the original software.
+ * 2. Altered source versions must be plainly marked as such, and must not be
+ *    misrepresented as being the original software.
+ * 3. This notice may not be removed or altered from any source distribution.
+ *
+ * DISCLAIMER OF WARRANTY/LIMITATION OF REMEDIES: Silicon Labs has no
+ * obligation to support this Software. Silicon Labs is providing the
+ * Software "AS IS", with no express or implied warranties of any kind,
+ * including, but not limited to, any implied warranties of merchantability
+ * or fitness for any particular purpose or warranties against infringement
+ * of any proprietary rights of a third party.
+ *
+ * Silicon Labs will not be liable for any consequential, incidental, or
+ * special damages, or any other relief, or for any claim by any third party,
+ * arising from your use of this Software.
+ *
+ ******************************************************************************/
+
+
+#ifndef __SILICON_LABS_EM_PRS_H_
+#define __SILICON_LABS_EM_PRS_H_
+
+#include "em_device.h"
+#if defined(PRS_COUNT) && (PRS_COUNT > 0)
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/***************************************************************************//**
+ * @addtogroup EM_Library
+ * @{
+ ******************************************************************************/
+
+/***************************************************************************//**
+ * @addtogroup PRS
+ * @{
+ ******************************************************************************/
+
+/*******************************************************************************
+ ********************************   ENUMS   ************************************
+ ******************************************************************************/
+
+/** Edge detection type. */
+typedef enum
+{
+  prsEdgeOff  = PRS_CH_CTRL_EDSEL_OFF,      /**< Leave signal as is. */
+  prsEdgePos  = PRS_CH_CTRL_EDSEL_POSEDGE,  /**< Generate pules on positive edge. */
+  prsEdgeNeg  = PRS_CH_CTRL_EDSEL_NEGEDGE,  /**< Generate pules on negative edge. */
+  prsEdgeBoth = PRS_CH_CTRL_EDSEL_BOTHEDGES /**< Generate pules on both edges. */
+} PRS_Edge_TypeDef;
+
+/*******************************************************************************
+ *****************************   PROTOTYPES   **********************************
+ ******************************************************************************/
+
+/***************************************************************************//**
+ * @brief
+ *   Set level control bit for one or more channels.
+ *
+ * @details
+ *   The level value for a channel is XORed with both the pulse possible issued
+ *   by PRS_PulseTrigger() and the PRS input signal selected for the channel(s).
+ *
+ * @param[in] level
+ *   Level to use for channels indicated by @p mask. Use logical OR combination
+ *   of PRS_SWLEVEL_CHnLEVEL defines for channels to set high level, otherwise 0.
+ *
+ * @param[in] mask
+ *   Mask indicating which channels to set level for. Use logical OR combination
+ *   of PRS_SWLEVEL_CHnLEVEL defines.
+ ******************************************************************************/
+__STATIC_INLINE void PRS_LevelSet(uint32_t level, uint32_t mask)
+{
+  PRS->SWLEVEL = (PRS->SWLEVEL & ~mask) | (level & mask);
+}
+
+
+/***************************************************************************//**
+ * @brief
+ *   Trigger a high pulse (one HFPERCLK) for one or more channels.
+ *
+ * @details
+ *   Setting a bit for a channel causes the bit in the register to remain high
+ *   for one HFPERCLK cycle. The pulse is XORed with both the corresponding bit
+ *   in PRS SWLEVEL register and the PRS input signal selected for the
+ *   channel(s).
+ *
+ * @param[in] channels
+ *   Logical ORed combination of channels to trigger a pulse for. Use
+ *   PRS_SWPULSE_CHnPULSE defines.
+ ******************************************************************************/
+__STATIC_INLINE void PRS_PulseTrigger(uint32_t channels)
+{
+  PRS->SWPULSE = channels & _PRS_SWPULSE_MASK;
+}
+
+void PRS_SourceSignalSet(unsigned int ch,
+                         uint32_t source,
+                         uint32_t signal,
+                         PRS_Edge_TypeDef edge);
+
+#if defined( PRS_CH_CTRL_ASYNC )
+void PRS_SourceAsyncSignalSet(unsigned int ch,
+                              uint32_t source,
+                              uint32_t signal);
+#endif
+
+/** @} (end addtogroup PRS) */
+/** @} (end addtogroup EM_Library) */
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* defined(PRS_COUNT) && (PRS_COUNT > 0) */
+#endif /* __SILICON_LABS_EM_PRS_H_ */