ao_log: Add casts to reduce -Wconversion warnings

[fw/altos] / src / lpc / ao_timer_lpc.c

diff --git a/src/lpc/ao_timer_lpc.c b/src/lpc/ao_timer_lpc.c
index 166e2f154aa135feab827b5bb3fde19a9ed14f31..a334ee0d286f8b78fa57ed5a80720545d52e795c 100644 (file)
--- a/src/lpc/ao_timer_lpc.c
+++ b/src/lpc/ao_timer_lpc.c
@@ -17,28 +17,44 @@
  */
 
 #include <ao.h>
+#include <ao_task.h>
 
-volatile __data AO_TICK_TYPE ao_tick_count;
+#define AO_SYSTICK     (AO_LPC_SYSCLK / 2)
 
-uint16_t
+volatile AO_TICK_TYPE ao_tick_count;
+
+AO_TICK_TYPE
 ao_time(void)
 {
        return ao_tick_count;
 }
 
+uint64_t
+ao_time_ns(void)
+{
+       AO_TICK_TYPE    before, after;
+       uint32_t        cvr;
+
+       do {
+               before = ao_tick_count;
+               cvr = lpc_systick.cvr;
+               after = ao_tick_count;
+       } while (before != after);
+
+       return (uint64_t) after * (1000000000ULL / AO_HERTZ) +
+               (uint64_t) cvr * (1000000000ULL / AO_SYSTICK);
+}
+
 #if AO_DATA_ALL
-volatile __data uint8_t        ao_data_interval = 1;
-volatile __data uint8_t        ao_data_count;
+volatile uint8_t       ao_data_interval = 1;
+volatile uint8_t       ao_data_count;
 #endif
 
 void lpc_systick_isr(void)
 {
        if (lpc_systick.csr & (1 << LPC_SYSTICK_CSR_COUNTFLAG)) {
                ++ao_tick_count;
-#if HAS_TASK_QUEUE
-               if (ao_task_alarm_tick && (int16_t) (ao_tick_count - ao_task_alarm_tick) >= 0)
-                       ao_task_check_alarm((uint16_t) ao_tick_count);
-#endif
+               ao_task_check_alarm();
 #if AO_DATA_ALL
                if (++ao_data_count == ao_data_interval) {
                        ao_data_count = 0;