From e47644864d5d9a3ca0c201ad270ce993a1cb543f Mon Sep 17 00:00:00 2001
From: gdisirio <gdisirio@35acf78f-673a-0410-8e92-d51de3d6d3f4>
Date: Mon, 4 Mar 2013 08:17:33 +0000
Subject: [PATCH] git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@5351
 35acf78f-673a-0410-8e92-d51de3d6d3f4

---
 os/hal/platforms/SPC5xx/EDMA_v1/spc5_edma.c | 10 ++++++----
 os/hal/platforms/SPC5xx/EDMA_v1/spc5_edma.h | 19 ++++++++++++++-----
 2 files changed, 20 insertions(+), 9 deletions(-)

diff --git a/os/hal/platforms/SPC5xx/EDMA_v1/spc5_edma.c b/os/hal/platforms/SPC5xx/EDMA_v1/spc5_edma.c
index 7979c37a9..2a1725e0d 100644
--- a/os/hal/platforms/SPC5xx/EDMA_v1/spc5_edma.c
+++ b/os/hal/platforms/SPC5xx/EDMA_v1/spc5_edma.c
@@ -41,6 +41,8 @@
 /* Driver local variables and types.                                         */
 /*===========================================================================*/
 
+static edma_channel_config_t channels[SPC5_EDMA_NCHANNELS];
+
 /*===========================================================================*/
 /* Driver local functions.                                                   */
 /*===========================================================================*/
@@ -67,22 +69,22 @@ void edmaInit(void) {
  *
  * @param[in] ccfg      channel configuration
  * @return              The channel TCD pointer.
- * @retval NULL         if the channel cannot be allocated.
+ * @retval EDMA_ERROR   if the channel cannot be allocated.
  *
  * @special
  */
-edma_tcd_t *edmaAllocChannel(const edma_channel_config_t *ccfg) {
+edma_channel_t edmaAllocChannel(const edma_channel_config_t *ccfg) {
 
 }
 
 /**
  * @brief   EDMA channel allocation.
  *
- * @param[in] tcd       channel TCD pointer
+ * @param[in] channel   the channel number
  *
  * @special
  */
-void edmaReleaseChannel(edma_tcd_t *tcd) {
+void edmaReleaseChannel(edma_channel_t channel) {
 
 }
 
diff --git a/os/hal/platforms/SPC5xx/EDMA_v1/spc5_edma.h b/os/hal/platforms/SPC5xx/EDMA_v1/spc5_edma.h
index 3aa899122..b0506e7b5 100644
--- a/os/hal/platforms/SPC5xx/EDMA_v1/spc5_edma.h
+++ b/os/hal/platforms/SPC5xx/EDMA_v1/spc5_edma.h
@@ -33,6 +33,11 @@
 /* Driver constants.                                                         */
 /*===========================================================================*/
 
+/**
+ * @brief   EDMA channel allocation error.
+ */
+#define EDMA_ERROR -1
+
 /*===========================================================================*/
 /* Driver pre-compile time settings.                                         */
 /*===========================================================================*/
@@ -45,6 +50,11 @@
 /* Driver data structures and types.                                         */
 /*===========================================================================*/
 
+/**
+ * @brief   Type of and EDMA channel number.
+ */
+typedef int32_t edma_channel_t;
+
 /**
  * @brief   Type of an EDMA TCD.
  */
@@ -64,11 +74,10 @@ typedef void (*edma_isr_t)(edma_tcd_t *tcd, void *p);
  * @brief   Type of an EDMA channel configuration structure.
  */
 typedef struct {
-  uint32_t              dma_periph;     /**< @brief Peripheral associated to
-                                             the channel.                   */
+  uint32_t              dma_periph;     /**< @brief Peripheral to be
+                                             associated to the channel.     */
   edma_isr_t            dma_func;       /**< @brief Channel ISR callback.   */
   void                  *dma_param;     /**< @brief Channel callback param. */
-
 } edma_channel_config_t;
 
 /*===========================================================================*/
@@ -83,8 +92,8 @@ typedef struct {
 extern "C" {
 #endif
   void edmaInit(void);
-  edma_tcd_t *edmaAllocChannel(const edma_channel_config_t *ccfg);
-  void edmaReleaseChannel(edma_tcd_t *tcd);
+  edma_channel_t edmaAllocChannel(const edma_channel_config_t *ccfg);
+  void edmaReleaseChannel(edma_channel_t *channel);
 #ifdef __cplusplus
 }
 #endif