From 9226141410542325cfac87cd8eb62368c0ad82d4 Mon Sep 17 00:00:00 2001
From: gdisirio <gdisirio@35acf78f-673a-0410-8e92-d51de3d6d3f4>
Date: Sun, 2 Dec 2012 09:08:10 +0000
Subject: git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@4864
 35acf78f-673a-0410-8e92-d51de3d6d3f4

---
 os/hal/platforms/SAM4L/hal_lld.c |  4 ++++
 os/hal/platforms/SAM4L/hal_lld.h | 43 +++++++++++++++++++++++++++++++++++++++-
 2 files changed, 46 insertions(+), 1 deletion(-)

(limited to 'os/hal/platforms')

diff --git a/os/hal/platforms/SAM4L/hal_lld.c b/os/hal/platforms/SAM4L/hal_lld.c
index 2564ac49d..02dbfb9a3 100644
--- a/os/hal/platforms/SAM4L/hal_lld.c
+++ b/os/hal/platforms/SAM4L/hal_lld.c
@@ -53,6 +53,10 @@
 /* Driver exported functions.                                                */
 /*===========================================================================*/
 
+void sam4l_clock_init(void) {
+
+}
+
 /**
  * @brief   Low level HAL driver initialization.
  *
diff --git a/os/hal/platforms/SAM4L/hal_lld.h b/os/hal/platforms/SAM4L/hal_lld.h
index 1b7106962..fb78792b9 100644
--- a/os/hal/platforms/SAM4L/hal_lld.h
+++ b/os/hal/platforms/SAM4L/hal_lld.h
@@ -29,14 +29,21 @@
 #ifndef _HAL_LLD_H_
 #define _HAL_LLD_H_
 
+#include "sam4l.h"
+
 /*===========================================================================*/
 /* Driver constants.                                                         */
 /*===========================================================================*/
 
+/**
+ * @brief   Defines the support for realtime counters in the HAL.
+ */
+#define HAL_IMPLEMENTS_COUNTERS TRUE
+
 /**
  * @brief   Platform name.
  */
-#define PLATFORM_NAME   ""
+#define PLATFORM_NAME   "SAM4L Series"
 
 /*===========================================================================*/
 /* Driver pre-compile time settings.                                         */
@@ -50,10 +57,43 @@
 /* Driver data structures and types.                                         */
 /*===========================================================================*/
 
+/**
+ * @brief   Type representing a system clock frequency.
+ */
+typedef uint32_t halclock_t;
+
+/**
+ * @brief   Type of the realtime free counter value.
+ */
+typedef uint32_t halrtcnt_t;
+
 /*===========================================================================*/
 /* Driver macros.                                                            */
 /*===========================================================================*/
 
+/**
+ * @brief   Returns the current value of the system free running counter.
+ * @note    This service is implemented by returning the content of the
+ *          DWT_CYCCNT register.
+ *
+ * @return              The value of the system free running counter of
+ *                      type halrtcnt_t.
+ *
+ * @notapi
+ */
+#define hal_lld_get_counter_value()         DWT_CYCCNT
+
+/**
+ * @brief   Realtime counter frequency.
+ * @note    The DWT_CYCCNT register is incremented directly by the system
+ *          clock so this function returns STM32_HCLK.
+ *
+ * @return              The realtime counter frequency of type halclock_t.
+ *
+ * @notapi
+ */
+#define hal_lld_get_counter_frequency()     STM32_HCLK
+
 /*===========================================================================*/
 /* External declarations.                                                    */
 /*===========================================================================*/
@@ -61,6 +101,7 @@
 #ifdef __cplusplus
 extern "C" {
 #endif
+  void sam4l_clock_init(void);
   void hal_lld_init(void);
 #ifdef __cplusplus
 }
-- 
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