From: arighi <arighi@38d2e660-2303-0410-9eaa-f027e97ec537>
Date: Wed, 14 Apr 2010 10:47:27 +0000 (+0000)
Subject: CM3: generic timer (Systick) driver implementation.
X-Git-Tag: 2.5.0~473
X-Git-Url: https://codewiz.org/gitweb?a=commitdiff_plain;ds=sidebyside;h=476b69eb75e5eca105bb4b3474df19e6cfdbed68;p=bertos.git

CM3: generic timer (Systick) driver implementation.

git-svn-id: https://src.develer.com/svnoss/bertos/trunk@3435 38d2e660-2303-0410-9eaa-f027e97ec537
---

diff --git a/bertos/cpu/cortex-m3/drv/timer_cm3.c b/bertos/cpu/cortex-m3/drv/timer_cm3.c
new file mode 100644
index 00000000..a4d96689
--- /dev/null
+++ b/bertos/cpu/cortex-m3/drv/timer_cm3.c
@@ -0,0 +1,71 @@
+/**
+ * \file
+ * <!--
+ * This file is part of BeRTOS.
+ *
+ * Bertos is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ *
+ * As a special exception, you may use this file as part of a free software
+ * library without restriction.  Specifically, if other files instantiate
+ * templates or use macros or inline functions from this file, or you compile
+ * this file and link it with other files to produce an executable, this
+ * file does not by itself cause the resulting executable to be covered by
+ * the GNU General Public License.  This exception does not however
+ * invalidate any other reasons why the executable file might be covered by
+ * the GNU General Public License.
+ *
+ * Copyright 2010 Develer S.r.l. (http://www.develer.com/)
+ *
+ * -->
+ *
+ * \brief Low-level timer driver (SysTick) for LM3S1968.
+ *
+ * \author Andrea Righi <arighi@develer.com>
+ */
+
+#include <cfg/debug.h>
+#include <cpu/irq.h>
+#include <drv/irq_cm3.h>
+#include "timer_cm3.h"
+
+INLINE void timer_hw_setPeriod(unsigned long period)
+{
+	ASSERT(period < (1 << 24));
+	HWREG(NVIC_ST_RELOAD) = period - 1;
+}
+
+static void timer_hw_enable(void)
+{
+	HWREG(NVIC_ST_CTRL) |=
+		NVIC_ST_CTRL_CLK_SRC | NVIC_ST_CTRL_ENABLE | NVIC_ST_CTRL_INTEN;
+}
+
+static void timer_hw_disable(void)
+{
+	HWREG(NVIC_ST_CTRL) &= ~(NVIC_ST_CTRL_ENABLE | NVIC_ST_CTRL_INTEN);
+}
+
+void timer_hw_init(void)
+{
+	timer_hw_setPeriod(CPU_FREQ / TIMER_TICKS_PER_SEC);
+	sysirq_setHandler(FAULT_SYSTICK, timer_handler);
+	timer_hw_enable();
+}
+
+void timer_hw_exit(void)
+{
+	timer_hw_disable();
+	sysirq_freeHandler(FAULT_SYSTICK);
+}
diff --git a/bertos/cpu/cortex-m3/drv/timer_cm3.h b/bertos/cpu/cortex-m3/drv/timer_cm3.h
index 0418a45b..6cfaf8cf 100644
--- a/bertos/cpu/cortex-m3/drv/timer_cm3.h
+++ b/bertos/cpu/cortex-m3/drv/timer_cm3.h
@@ -30,9 +30,9 @@
  *
  * -->
  *
- * \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>
diff --git a/bertos/cpu/cortex-m3/drv/timer_lm3s.c b/bertos/cpu/cortex-m3/drv/timer_lm3s.c
deleted file mode 100644
index 49b9fa8e..00000000
--- a/bertos/cpu/cortex-m3/drv/timer_lm3s.c
+++ /dev/null
@@ -1,72 +0,0 @@
-/**
- * \file
- * <!--
- * This file is part of BeRTOS.
- *
- * Bertos is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
- *
- * As a special exception, you may use this file as part of a free software
- * library without restriction.  Specifically, if other files instantiate
- * templates or use macros or inline functions from this file, or you compile
- * this file and link it with other files to produce an executable, this
- * file does not by itself cause the resulting executable to be covered by
- * the GNU General Public License.  This exception does not however
- * invalidate any other reasons why the executable file might be covered by
- * the GNU General Public License.
- *
- * Copyright 2010 Develer S.r.l. (http://www.develer.com/)
- *
- * -->
- *
- * \brief Low-level timer driver for LM3S1968.
- *
- * \author Andrea Righi <arighi@develer.com>
- */
-
-#include <cfg/debug.h>
-#include <cpu/irq.h>
-#include <io/lm3s.h>
-#include <drv/irq_cm3.h>
-#include "timer_lm3s.h"
-
-INLINE void timer_hw_setPeriod(unsigned long period)
-{
-	ASSERT(period < (1 << 24));
-	HWREG(NVIC_ST_RELOAD) = period - 1;
-}
-
-static void timer_hw_enable(void)
-{
-	HWREG(NVIC_ST_CTRL) |=
-		NVIC_ST_CTRL_CLK_SRC | NVIC_ST_CTRL_ENABLE | NVIC_ST_CTRL_INTEN;
-}
-
-static void timer_hw_disable(void)
-{
-	HWREG(NVIC_ST_CTRL) &= ~(NVIC_ST_CTRL_ENABLE | NVIC_ST_CTRL_INTEN);
-}
-
-void timer_hw_init(void)
-{
-	timer_hw_setPeriod(CPU_FREQ / TIMER_TICKS_PER_SEC);
-	sysirq_setHandler(FAULT_SYSTICK, timer_handler);
-	timer_hw_enable();
-}
-
-void timer_hw_exit(void)
-{
-	timer_hw_disable();
-	sysirq_freeHandler(FAULT_SYSTICK);
-}
diff --git a/bertos/cpu/cortex-m3/drv/timer_lm3s.h b/bertos/cpu/cortex-m3/drv/timer_lm3s.h
index 3d7c979f..00c532f2 100644
--- a/bertos/cpu/cortex-m3/drv/timer_lm3s.h
+++ b/bertos/cpu/cortex-m3/drv/timer_lm3s.h
@@ -30,7 +30,7 @@
  *
  * -->
  *
- * \brief Low-level timer driver for LM3S1968.
+ * \brief Low-level timer driver (SysTick) for LM3S1968.
  *
  * \author Andrea Righi <arighi@develer.com>
  */
diff --git a/examples/lm3s1968/lm3s1968.mk b/examples/lm3s1968/lm3s1968.mk
index 475bdb47..4d71d0da 100644
--- a/examples/lm3s1968/lm3s1968.mk
+++ b/examples/lm3s1968/lm3s1968.mk
@@ -43,11 +43,11 @@ lm3s1968_CSRC = \
 	bertos/kern/preempt.c \
 	bertos/kern/signal.c \
 	bertos/cpu/cortex-m3/drv/gpio_lm3s.c \
-	bertos/cpu/cortex-m3/drv/timer_lm3s.c \
 	bertos/cpu/cortex-m3/drv/clock_lm3s.c \
 	bertos/cpu/cortex-m3/drv/ser_lm3s.c \
 	bertos/cpu/cortex-m3/drv/kdebug_lm3s.c \
 	bertos/cpu/cortex-m3/drv/ssi_lm3s.c \
+	bertos/cpu/cortex-m3/drv/timer_cm3.c \
 	bertos/cpu/cortex-m3/drv/irq_cm3.c \
 	bertos/cpu/cortex-m3/hw/switch_ctx_cm3.c \
 	bertos/cpu/cortex-m3/hw/init_lm3s.c
@@ -70,7 +70,7 @@ lm3s1968_PROGRAMMER_CPU = lm3s1968
 lm3s1968_PROGRAMMER_TYPE = lm3s1968
 lm3s1968_FLASH_SCRIPT = bertos/prg_scripts/arm/flash-cortex.sh
 lm3s1968_STOPFLASH_SCRIPT = bertos/prg_scripts/arm/stopopenocd.sh
-lm3s1968_DEBUG_SCRIPT = bertos/prg_scripts/arm/debug.sh
+lm3s1968_DEBUG_SCRIPT = bertos/prg_scripts/arm/debug-cortex.sh
 lm3s1968_STOPDEBUG_SCRIPT = bertos/prg_scripts/arm/stopopenocd.sh
 
 ifeq ($(lm3s1968_DEBUG),0)