From e817b7032d9610508e39921c65cda6ba108db357 Mon Sep 17 00:00:00 2001
From: gdisirio <gdisirio@35acf78f-673a-0410-8e92-d51de3d6d3f4>
Date: Mon, 23 Apr 2012 17:43:42 +0000
Subject: git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@4128
 35acf78f-673a-0410-8e92-d51de3d6d3f4

---
 os/hal/include/ext.h | 26 +++++++++++++++++++++++++-
 1 file changed, 25 insertions(+), 1 deletion(-)

(limited to 'os/hal/include/ext.h')

diff --git a/os/hal/include/ext.h b/os/hal/include/ext.h
index 56e683019..37a7dcd15 100644
--- a/os/hal/include/ext.h
+++ b/os/hal/include/ext.h
@@ -36,7 +36,7 @@
 /*===========================================================================*/
 
 /**
- * @name    EXT channels modes
+ * @name    EXT channel modes
  * @{
  */
 #define EXT_CH_MODE_EDGES_MASK      3   /**< @brief Mask of edges field.    */
@@ -104,6 +104,27 @@ typedef struct EXTDriver EXTDriver;
  * @iclass
  */
 #define extChannelDisableI(extp, channel) ext_lld_channel_disable(extp, channel)
+
+/**
+ * @brief   Changes the operation mode of a channel.
+ * @note    This function attempts to write over the current configuration
+ *          structure that must have been not declared constant. This
+ *          violates the @p const qualifier in @p extStart() but it is
+ *          intentional. This function cannot be used if the configuration
+ *          structure is declared @p const.
+ *
+ * @param[in] extp      pointer to the @p EXTDriver object
+ * @param[in] channel   channel to be changed
+ * @param[in] extcp     new configuration for the channel
+ *
+ * @api
+ */
+#define extSetChannelMode(extp, channel, extcp) {                           \
+  chSysLock();                                                              \
+  extSetChannelModeI(extp, channel, extcp);                                 \
+  chSysUnlock();                                                            \
+}
+
 /** @} */
 
 /*===========================================================================*/
@@ -119,6 +140,9 @@ extern "C" {
   void extStop(EXTDriver *extp);
   void extChannelEnable(EXTDriver *extp, expchannel_t channel);
   void extChannelDisable(EXTDriver *extp, expchannel_t channel);
+  void extSetChannelModeI(EXTDriver *extp,
+                          expchannel_t channel,
+                          const EXTChannelConfig *extcp);
 #ifdef __cplusplus
 }
 #endif
-- 
cgit v1.2.3