From 7a6a1679a413987ffa47f2f9892e241f3448f5f0 Mon Sep 17 00:00:00 2001
From: gdisirio <gdisirio@35acf78f-673a-0410-8e92-d51de3d6d3f4>
Date: Thu, 24 May 2012 18:31:34 +0000
Subject: git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@4232
 35acf78f-673a-0410-8e92-d51de3d6d3f4

---
 os/hal/platforms/STM32L1xx/stm32_dma.h | 14 ++++++++++++--
 1 file changed, 12 insertions(+), 2 deletions(-)

(limited to 'os/hal/platforms/STM32L1xx')

diff --git a/os/hal/platforms/STM32L1xx/stm32_dma.h b/os/hal/platforms/STM32L1xx/stm32_dma.h
index bf3f3f3ca..71af4a339 100644
--- a/os/hal/platforms/STM32L1xx/stm32_dma.h
+++ b/os/hal/platforms/STM32L1xx/stm32_dma.h
@@ -59,9 +59,15 @@
 #define STM32_DMA_GETCHANNEL(n, c)  0
 
 /**
- * @name    DMA streams identifiers
- * @{
+ * @brief   Checks if a DMA priority is within the valid range.
+ * @param[in] prio      DMA priority
+ *
+ * @retval              The check result.
+ * @retval FALSE        invalid DMA priority.
+ * @retval TRUE         correct DMA priority.
  */
+#define STM32_DMA_IS_VALID_PRIORITY(prio) (((prio) >= 0) && ((prio) <= 3))
+
 /**
  * @brief   Returns an unique numeric identifier for a DMA stream.
  *
@@ -93,6 +99,10 @@
  */
 #define STM32_DMA_IS_VALID_ID(id, mask) (((1 << (id)) & (mask)))
 
+/**
+ * @name    DMA streams identifiers
+ * @{
+ */
 /**
  * @brief   Returns a pointer to a stm32_dma_stream_t structure.
  *
-- 
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