DOS EOL and indentation fixes (platform files)

- Removed some DOS EOLs
- Changed some tabs to spaces
- Removed some trailing whitespaces

Closes #6

platform/iris/dev/adc.c

@@ -34,43 +34,43 @@
 #include "dev/adc.h"
 
 /*---------------------------------------------------------------------------*/
-void 
-adc_init()
-{
+void
+adc_init()
+{
   ADMUX = 0;
   /* AVCC with external capacitor at AREF pin. */
   ADMUX |= _BV(REFS0);
-  /* Disable ADC interrupts. */   
+  /* Disable ADC interrupts. */
   ADCSRA &= ~( _BV(ADIE) | _BV(ADIF) );
   /* Set ADC prescaler to 64 and clear interrupt flag. */
-  ADCSRA |= _BV(ADPS2) | _BV(ADPS1) | _BV(ADIE);
-  
+  ADCSRA |= _BV(ADPS2) | _BV(ADPS1) | _BV(ADIE);
+
 }
 /*---------------------------------------------------------------------------*/
 /* Poll based approach. The interrupt based adc is currently not used.
    The ADC result is right adjusted. First 8 bits(from left) are in ADCL and
-   other two bits are in ADCH. See Atmega128 datasheet page 228. */
-uint16_t 
-get_adc(int channel)
-{
-  uint16_t reading;
-
+   other two bits are in ADCH. See Atmega128 datasheet page 228. */
+uint16_t
+get_adc(int channel)
+{
+  uint16_t reading;
+
   ADMUX |= (channel & 0x1F);
 
-  /* Disable ADC interrupts. */
+  /* Disable ADC interrupts. */
   ADCSRA &= ~_BV(ADIE);
-  /* Clear previous interrupts. */
+  /* Clear previous interrupts. */
   ADCSRA |= _BV(ADIF);
-  /* Enable ADC and start conversion. */
-  ADCSRA |= _BV(ADEN) | _BV(ADSC);
-  /* Wait until conversion is completed. */
-  while ( ADCSRA & _BV(ADSC) );
-  /* Get first 8 bits.  */
+  /* Enable ADC and start conversion. */
+  ADCSRA |= _BV(ADEN) | _BV(ADSC);
+  /* Wait until conversion is completed. */
+  while ( ADCSRA & _BV(ADSC) );
+  /* Get first 8 bits.  */
   reading = ADCL;
-  /* Get last two bits. */
+  /* Get last two bits. */
   reading |= (ADCH & 3) << 8;
-  /* Disable ADC. */
-  ADCSRA &= ~_BV(ADEN);
-  return reading;
+  /* Disable ADC. */
+  ADCSRA &= ~_BV(ADEN);
+  return reading;
 }
 /*---------------------------------------------------------------------------*/