From c39d08fc2ae9c43f73114e24292520306bddde19 Mon Sep 17 00:00:00 2001
From: gdisirio <gdisirio@35acf78f-673a-0410-8e92-d51de3d6d3f4>
Date: Fri, 23 Sep 2011 15:48:55 +0000
Subject: git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@3384
 35acf78f-673a-0410-8e92-d51de3d6d3f4

---
 os/hal/templates/ext_lld.h | 19 ++++++++++++++++---
 1 file changed, 16 insertions(+), 3 deletions(-)

(limited to 'os/hal/templates/ext_lld.h')

diff --git a/os/hal/templates/ext_lld.h b/os/hal/templates/ext_lld.h
index 494cef1b9..f299a8914 100644
--- a/os/hal/templates/ext_lld.h
+++ b/os/hal/templates/ext_lld.h
@@ -63,14 +63,23 @@ typedef uint32_t expchannel_t;
  * @param[in] extp      pointer to the @p EXPDriver object triggering the
  *                      callback
  */
-typedef void (*extcallback_t)(EXTDriver *extp);
+typedef void (*extcallback_t)(EXTDriver *extp, expchannel_t channel);
 
 /**
  * @brief   Channel configuration structure.
  */
 typedef struct {
-  uint32_t              mode;           /**< @brief Channel mode.           */
-  extcallback_t         cb;             /**< @brief Channel callback.       */
+  /**
+   * @brief Channel mode.
+   */
+  uint32_t              mode;
+  /**
+   * @brief Channel callback.
+   * @details  In the STM32 implementation a @p NULL callback pointer is
+   *           valid and configures the channel as an event sources instead
+   *           of an interrupt source.
+   */
+  extcallback_t         cb;
 } EXTChannelConfig;
 
 /**
@@ -108,6 +117,10 @@ struct EXTDriver {
 /* External declarations.                                                    */
 /*===========================================================================*/
 
+#if !defined(__DOXYGEN__)
+extern EXTDriver EXTD1;
+#endif
+
 #ifdef __cplusplus
 extern "C" {
 #endif
-- 
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