Diff: targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/dma_api.c

Revision:

548:1abac31e188e

Parent:

525:c320967f86b9

--- a/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/dma_api.c	Fri May 22 09:45:08 2015 +0100
+++ b/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/dma_api.c	Fri May 22 10:45:46 2015 +0100
@@ -39,55 +39,51 @@
 
 void dma_init(void)
 {
-  if (enabled) return;
-  DMA_Init_TypeDef   dmaInit;
+    if (enabled) return;
+    DMA_Init_TypeDef   dmaInit;
 
-  CMU_ClockEnable(cmuClock_DMA, true);
-  CMU_ClockEnable(cmuClock_HFPER, true);
+    CMU_ClockEnable(cmuClock_DMA, true);
+    CMU_ClockEnable(cmuClock_HFPER, true);
 
-  /* Configure general DMA issues */
-  dmaInit.hprot        = 0;
-  dmaInit.controlBlock = dmaControlBlock;
-  DMA_Init(&dmaInit);
-  enabled = true;
+    /* Configure general DMA issues */
+    dmaInit.hprot        = 0;
+    dmaInit.controlBlock = dmaControlBlock;
+    DMA_Init(&dmaInit);
+    enabled = true;
 }
 
 int dma_channel_allocate(uint32_t capabilities)
 {
-  int i;
-  // Check if 2d copy is required
-  if (DMA_CAP_2DCOPY & capabilities)
-  {
-    if (channels & 1) 
-    {
-      // Channel already in use
-      return DMA_ERROR_OUT_OF_CHANNELS;
-    } else {
-      channels |= 1 << 0;
-      return 0;
+    int i;
+    // Check if 2d copy is required
+    if (DMA_CAP_2DCOPY & capabilities) {
+        if (channels & 1) {
+            // Channel already in use
+            return DMA_ERROR_OUT_OF_CHANNELS;
+        } else {
+            channels |= 1 << 0;
+            return 0;
+        }
     }
-  }
-  for (i = 1; i < DMA_CHAN_COUNT; i++)
-  {
-    if ((channels & (1 << i)) == 0) 
-    {
-      // Channel available
-      channels |= 1 << i;
-      return i;
+    for (i = 1; i < DMA_CHAN_COUNT; i++) {
+        if ((channels & (1 << i)) == 0) {
+            // Channel available
+            channels |= 1 << i;
+            return i;
+        }
     }
-  }
-  // Check if channel 0 is available
-  if ((channels & 1 ) == 0) {
-    channels |= 1 << 0;
-    return 0;
-  }
-  // Couldn't find a channel.
-  return DMA_ERROR_OUT_OF_CHANNELS;
+    // Check if channel 0 is available
+    if ((channels & 1 ) == 0) {
+        channels |= 1 << 0;
+        return 0;
+    }
+    // Couldn't find a channel.
+    return DMA_ERROR_OUT_OF_CHANNELS;
 }
 
-int dma_channel_free(int channelid) 
+int dma_channel_free(int channelid)
 {
-  channels &= ~(1 << channelid);
-  return 0;
+    channels &= ~(1 << channelid);
+    return 0;
 }