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authorgdisirio <gdisirio@35acf78f-673a-0410-8e92-d51de3d6d3f4>2012-04-23 17:43:42 +0000
committergdisirio <gdisirio@35acf78f-673a-0410-8e92-d51de3d6d3f4>2012-04-23 17:43:42 +0000
commite817b7032d9610508e39921c65cda6ba108db357 (patch)
treefc4f7dfd20f8655e87b6165a4da1f27ba134c3a4 /os/hal/include
parentcdabdb46317e967dc0fa79e8c23cde3c2ffd0b10 (diff)
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git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@4128 35acf78f-673a-0410-8e92-d51de3d6d3f4
Diffstat (limited to 'os/hal/include')
-rw-r--r--os/hal/include/ext.h26
1 files changed, 25 insertions, 1 deletions
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