From 06cc9ea04a04bd171f1ef7d10db02567447b59d0 Mon Sep 17 00:00:00 2001
From: utzig <utzig@35acf78f-673a-0410-8e92-d51de3d6d3f4>
Date: Tue, 16 Jul 2013 23:08:40 +0000
Subject: [PATCH] [AVR] Disable shared use of a single timer between multiple
 drivers

git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@5979 35acf78f-673a-0410-8e92-d51de3d6d3f4
---
 os/hal/platforms/AVR/avr_timers.h | 48 +++++++++++++++++++++++++++++++
 os/hal/platforms/AVR/gpt_lld.h    |  2 ++
 os/hal/platforms/AVR/icu_lld.h    |  2 ++
 os/hal/platforms/AVR/pwm_lld.h    |  2 ++
 4 files changed, 54 insertions(+)
 create mode 100644 os/hal/platforms/AVR/avr_timers.h

diff --git a/os/hal/platforms/AVR/avr_timers.h b/os/hal/platforms/AVR/avr_timers.h
new file mode 100644
index 000000000..28fd90b7e
--- /dev/null
+++ b/os/hal/platforms/AVR/avr_timers.h
@@ -0,0 +1,48 @@
+/*
+    ChibiOS/RT - Copyright (C) 2006-2013 Giovanni Di Sirio
+
+    Licensed under the Apache License, Version 2.0 (the "License");
+    you may not use this file except in compliance with the License.
+    You may obtain a copy of the License at
+
+        http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License.
+*/
+
+#ifndef _AVR_TIMERS_H_
+#define _AVR_TIMERS_H_
+
+#if ((AVR_GPT_USE_TIM1 && AVR_PWM_USE_TIM1) || \
+     (AVR_GPT_USE_TIM1 && AVR_ICU_USE_TIM1) || \
+     (AVR_PWM_USE_TIM1 && AVR_ICU_USE_TIM1))
+  #error "Timer 1 cannot simultaneously be used by multiple drivers."
+#endif
+
+#if ((AVR_GPT_USE_TIM2 && AVR_PWM_USE_TIM2))
+  #error "Timer 2 cannot simultaneously be used by multiple drivers."
+#endif
+
+#if ((AVR_GPT_USE_TIM3 && AVR_PWM_USE_TIM3) || \
+     (AVR_GPT_USE_TIM3 && AVR_ICU_USE_TIM3) || \
+     (AVR_PWM_USE_TIM3 && AVR_ICU_USE_TIM3))
+  #error "Timer 3 cannot simultaneously be used by multiple drivers."
+#endif
+
+#if ((AVR_GPT_USE_TIM4 && AVR_PWM_USE_TIM4) || \
+     (AVR_GPT_USE_TIM4 && AVR_ICU_USE_TIM4) || \
+     (AVR_PWM_USE_TIM4 && AVR_ICU_USE_TIM4))
+  #error "Timer 4 cannot simultaneously be used by multiple drivers."
+#endif
+
+#if ((AVR_GPT_USE_TIM5 && AVR_PWM_USE_TIM5) || \
+     (AVR_GPT_USE_TIM5 && AVR_ICU_USE_TIM5) || \
+     (AVR_PWM_USE_TIM5 && AVR_ICU_USE_TIM5))
+  #error "Timer 5 cannot simultaneously be used by multiple drivers."
+#endif
+
+#endif /* _AVR_TIMERS_H_ */
diff --git a/os/hal/platforms/AVR/gpt_lld.h b/os/hal/platforms/AVR/gpt_lld.h
index 31a623f39..387a2d4bb 100644
--- a/os/hal/platforms/AVR/gpt_lld.h
+++ b/os/hal/platforms/AVR/gpt_lld.h
@@ -32,6 +32,8 @@
 
 #if HAL_USE_GPT || defined(__DOXYGEN__)
 
+#include "avr_timers.h"
+
 /*===========================================================================*/
 /* Driver constants.                                                         */
 /*===========================================================================*/
diff --git a/os/hal/platforms/AVR/icu_lld.h b/os/hal/platforms/AVR/icu_lld.h
index a9b420f1a..407ffba30 100644
--- a/os/hal/platforms/AVR/icu_lld.h
+++ b/os/hal/platforms/AVR/icu_lld.h
@@ -27,6 +27,8 @@
 
 #if HAL_USE_ICU || defined(__DOXYGEN__)
 
+#include "avr_timers.h"
+
 /*===========================================================================*/
 /* Driver constants.                                                         */
 /*===========================================================================*/
diff --git a/os/hal/platforms/AVR/pwm_lld.h b/os/hal/platforms/AVR/pwm_lld.h
index 51776bb21..36ab5cb73 100644
--- a/os/hal/platforms/AVR/pwm_lld.h
+++ b/os/hal/platforms/AVR/pwm_lld.h
@@ -32,6 +32,8 @@
 
 #if HAL_USE_PWM || defined(__DOXYGEN__)
 
+#include "avr_timers.h"
+
 /*===========================================================================*/
 /* Driver constants.                                                         */
 /*===========================================================================*/