X-Git-Url: https://codewiz.org/gitweb?a=blobdiff_plain;f=bertos%2Fcpu%2Fcortex-m3%2Fdrv%2Ftimer_cm3.h;h=6311d506caa0ccb83b11e2d44a1d590f1862273c;hb=b56bb4637fb1feffd1170b3c70b2603211a438e0;hp=0418a45bfa3744bfd5c84c04a55e55f0b6e7e888;hpb=5417946aa2c0faa7f035305f52e4a545a9e5aa6e;p=bertos.git

diff --git a/bertos/cpu/cortex-m3/drv/timer_cm3.h b/bertos/cpu/cortex-m3/drv/timer_cm3.h
index 0418a45b..6311d506 100644
--- a/bertos/cpu/cortex-m3/drv/timer_cm3.h
+++ b/bertos/cpu/cortex-m3/drv/timer_cm3.h
@@ -30,16 +30,64 @@
  *
  * -->
  *
- * \author Francesco Sacchi <batt@develer.com>
+ * \author Andrea Righi <arighi@develer.com>
  *
- * \brief Low-level timer module for Cortex-M3 (interface).
+ * \brief Low-level timer driver (SysTick) for Cortex-M3.
  */
 
-#include <cpu/detect.h>
+#ifndef TIMER_CM3_H
+#define TIMER_CM3_H
 
 #if CPU_CM3_LM3S
-	#include "timer_lm3s.h"
+	#include <io/lm3s.h>
+#elif CPU_CM3_STM32
+	#include <io/stm32.h>
 /*#elif  Add other families here */
 #else
 	#error Unknown CPU
 #endif
+
+/**
+ * \name Values for CONFIG_TIMER.
+ *
+ * Select which hardware timer interrupt to use for system clock and softtimers.
+ *
+ * $WIZ$ timer_select = "TIMER_DEFAULT"
+ */
+#define TIMER_DEFAULT  /*  */ ///< Default system timer
+
+/* Ticks frequency (HZ) */
+#define TIMER_TICKS_PER_SEC	1000
+
+/* Frequency of the hardware high-precision timer. */
+#define TIMER_HW_HPTICKS_PER_SEC (CPU_FREQ)
+
+/* Maximum value of the high-precision hardware counter register */
+#define TIMER_HW_CNT (CPU_FREQ / TIMER_TICKS_PER_SEC)
+
+/** Type of time expressed in ticks of the hardware high-precision timer */
+typedef uint32_t hptime_t;
+#define SIZEOF_HPTIME_T 4
+
+/* Timer ISR prototype */
+ISR_PROTO_CONTEXT_SWITCH(timer_handler);
+#define DEFINE_TIMER_ISR DECLARE_ISR_CONTEXT_SWITCH(timer_handler)
+
+INLINE void timer_hw_irq(void)
+{
+}
+
+INLINE bool timer_hw_triggered(void)
+{
+	return true;
+}
+
+INLINE hptime_t timer_hw_hpread(void)
+{
+	return HWREG(NVIC_ST_CURRENT);
+}
+
+void timer_hw_init(void);
+void timer_hw_exit(void);
+
+#endif /* TIMER_CM3_H */