X-Git-Url: https://codewiz.org/gitweb?a=blobdiff_plain;f=bertos%2Fcpu%2Farm%2Fdrv%2Fadc_at91.h;h=5e70477d0e23aa2f34df5d1b1d7c5052abdb0efe;hb=2b74d29e47161c81ee4f055072a63a54310249c8;hp=f1125980623afe10d47fe8dedacbf7514c8e2d43;hpb=32eebaf8bf80d1ffd417bfe6d2c34e6cd3684f87;p=bertos.git

diff --git a/bertos/cpu/arm/drv/adc_at91.h b/bertos/cpu/arm/drv/adc_at91.h
index f1125980..5e70477d 100644
--- a/bertos/cpu/arm/drv/adc_at91.h
+++ b/bertos/cpu/arm/drv/adc_at91.h
@@ -30,11 +30,8 @@
  *
  * -->
  *
- * \version $Id$
- *
  * \brief ADC hardware-specific definition
  *
- * \version $Id$
  * \author Daniele Basile <asterix@develer.com>
  */
 
@@ -57,9 +54,10 @@
  * Macro for computing correct value to write into ADC
  * register.
  */
-#define ADC_COMPUTED_PRESCALER    ((CPU_FREQ/(2 * CONFIG_ADC_CLOCK)) - 1)
-#define ADC_COMPUTED_STARTUPTIME  (((CONFIG_ADC_STARTUP_TIME * CONFIG_ADC_CLOCK)/ 8000000UL) - 1)
-#define ADC_COMPUTED_SHTIME       (((CONFIG_ADC_SHTIME * CONFIG_ADC_CLOCK)/1000000000UL) - 1)
+#define ADC_COMPUTED_PRESCALER    (DIV_ROUNDUP(CPU_FREQ, 2 * CONFIG_ADC_CLOCK) - 1)
+#define ADC_COMPUTED_CLOCK        (CPU_FREQ / ((ADC_COMPUTED_PRESCALER + 1) * 2))
+#define ADC_COMPUTED_STARTUPTIME  (((CONFIG_ADC_STARTUP_TIME * ADC_COMPUTED_CLOCK) / 8000000UL) - 1)
+#define ADC_COMPUTED_SHTIME       ((uint32_t)((CONFIG_ADC_SHTIME * (uint64_t)ADC_COMPUTED_CLOCK) / 1000000000UL) - 1)
 
 /**
  * Init pins macro for adc.
@@ -90,5 +88,8 @@
 	do { \
 	} while (0)
 
+void adc_hw_select_ch(uint8_t ch);
+uint16_t adc_hw_read(void);
+void adc_hw_init(void);
 
 #endif /* DRV_ADC_AT91_H */