whitespace cleanups

1 files changed, 17 insertions, 21 deletions

diff --git a/libmaple/dac.c b/libmaple/dac.c
index ffc34f8..4c00edb 100644
--- a/libmaple/dac.c
+++ b/libmaple/dac.c
@@ -1,5 +1,4 @@
-
-/* *****************************************************************************
+/******************************************************************************
  * The MIT License
  *
  * Copyright (c) 2010 Bryan Newbold.
@@ -21,47 +20,44 @@
  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  * THE SOFTWARE.
- * ****************************************************************************/
+ *****************************************************************************/
 
 #include "libmaple.h"
 #include "rcc.h"
 #include "gpio.h"
 #include "dac.h"
 
-// Only one, so global to this file
+/* Only one, so global to this file */
 DAC_Map *dac = (DAC_Map*)(DAC_BASE);
 
-// This numbering follows the registers (1-indexed)
+/* This numbering follows the registers (1-indexed) */
 #define DAC_CHA     1
 #define DAC_CHB     2
 
-// Sets up the DAC peripheral
+/* Sets up the DAC peripheral */
 void dac_init(void) {
-
-    // First turn on the clock
+    /* First turn on the clock */
     rcc_clk_enable(RCC_DAC);
 
-    // Then setup ANALOG mode on PA4 and PA5 
+    /* Then setup ANALOG mode on PA4 and PA5 */
     gpio_set_mode(GPIOA_BASE,  4, CNF_INPUT_ANALOG);
     gpio_set_mode(GPIOA_BASE,  5, CNF_INPUT_ANALOG);
 
-    // Then do register stuff.
-    // Default does no triggering, and buffered output, so all good.
+    /* Then do register stuff.  Default does no triggering, and
+     * buffered output, so all good. */
     dac->CR |= DAC_CR_EN1;
     dac->CR |= DAC_CR_EN2;
-
 }
 
 void dac_write(uint8 chan, uint16 val) {
-
     switch(chan) {
-        case DAC_CHA:
-            dac->DHR12R1 = 0x0FFF & val;
-            break;
-        case DAC_CHB:
-            dac->DHR12R2 = 0x0FFF & val;
-            break;
-        default:    
-            ASSERT(0);  // Shouldn't get here
+    case DAC_CHA:
+        dac->DHR12R1 = 0x0FFF & val;
+        break;
+    case DAC_CHB:
+        dac->DHR12R2 = 0x0FFF & val;
+        break;
+    default:
+        ASSERT(0);  // can't happen
     }
 }