doc: efm32: adc: enable peripheral_apis style

include/libopencm3/efm32/common/adc_common.h

@@ -1,3 +1,5 @@
+/** @addtogroup adc_defines
+ */
 /*
  * This file is part of the libopencm3 project.
  *
@@ -17,8 +19,9 @@
  * along with this library.  If not, see <http://www.gnu.org/licenses/>.
  */
 
-#ifndef LIBOPENCM3_EFM32_ADC_H
-#define LIBOPENCM3_EFM32_ADC_H
+/**@{*/
+
+#pragma once
 
 #include <libopencm3/efm32/memorymap.h>
 #include <libopencm3/cm3/common.h>
@@ -340,8 +343,6 @@
 #define ADC0_BIASPROG		ADC_BIASPROG(ADC0)
 
 /** @defgroup adc_ch ADC Channel Number
-@ingroup adc_defines
-
 @{*/
 #define ADC_CH0			0
 #define ADC_CH1			1
@@ -453,5 +454,4 @@ void adc_set_calibration_single_offset(uint32_t adc, uint8_t single_offset);
 
 END_DECLS
 
-#endif
-
+/**@}*/

include/libopencm3/efm32/ezr32wg/adc.h

@@ -1,3 +1,12 @@
+/** @defgroup adc_defines ADC Defines
+ *
+ * @brief <b>Defined Constants and Types for the EZR32WG Analog to Digital
+ * Converter</b>
+ *
+ * @ingroup EZR32WG_defines
+ *
+ * LGPL License Terms @ref lgpl_license
+ */
 /*
  * This file is part of the libopencm3 project.
  *
@@ -17,9 +26,6 @@
  * along with this library.  If not, see <http://www.gnu.org/licenses/>.
  */
 
-#ifndef LIBOPENCM3_EFM32_EZR32WG_ADC_H
-#define LIBOPENCM3_EFM32_EZR32WG_ADC_H
+#pragma once
 
 #include <libopencm3/efm32/common/adc_common.h>
-
-#endif

include/libopencm3/efm32/lg/adc.h

@@ -1,3 +1,12 @@
+/** @defgroup adc_defines ADC Defines
+ *
+ * @brief <b>Defined Constants and Types for the EFM32LG Analog to Digital
+ * Converter</b>
+ *
+ * @ingroup EFM32LG_defines
+ *
+ * LGPL License Terms @ref lgpl_license
+ */
 /*
  * This file is part of the libopencm3 project.
  *
@@ -17,9 +26,7 @@
  * along with this library.  If not, see <http://www.gnu.org/licenses/>.
  */
 
-#ifndef LIBOPENCM3_EFM32_LG_ADC_H
-#define LIBOPENCM3_EFM32_LG_ADC_H
+#pragma once
 
 #include <libopencm3/efm32/common/adc_common.h>
 
-#endif

include/libopencm3/efm32/wg/adc.h

@@ -1,3 +1,12 @@
+/** @defgroup adc_defines ADC Defines
+ *
+ * @brief <b>Defined Constants and Types for the EFM32WG Analog to Digital
+ * Converter</b>
+ *
+ * @ingroup EFM32WG_defines
+ *
+ * LGPL License Terms @ref lgpl_license
+ */
 /*
  * This file is part of the libopencm3 project.
  *
@@ -17,9 +26,6 @@
  * along with this library.  If not, see <http://www.gnu.org/licenses/>.
  */
 
-#ifndef LIBOPENCM3_EFM32_WG_ADC_H
-#define LIBOPENCM3_EFM32_WG_ADC_H
+#pragma once
 
 #include <libopencm3/efm32/common/adc_common.h>
-
-#endif