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implement sleep mode

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This commit is contained in:
matthias.ringwald 2011-08-05 15:54:21 +00:00
parent e96f52b81b
commit ccf81f4c49
1 changed files with 20 additions and 2 deletions
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22
src/run_loop_embedded.c
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@ -50,6 +50,7 @@
#include <btstack/run_loop.h> #include <btstack/run_loop.h>
#include <btstack/linked_list.h> #include <btstack/linked_list.h>
#include <btstack/hal_tick.h> #include <btstack/hal_tick.h>
#include <btstack/hal_cpu.h>
#include "run_loop_private.h" #include "run_loop_private.h"
#include "debug.h" #include "debug.h"
@ -64,6 +65,15 @@ static linked_list_t timers;
static uint32_t system_ticks; static uint32_t system_ticks;
#endif #endif
static int trigger_event_received = 0;
/**
* trigger run loop iteration
*/
void embedded_trigger(void){
trigger_event_received = 1;
}
/** /**
* Add data_source to run_loop * Add data_source to run_loop
*/ */
@ -109,7 +119,7 @@ int embedded_remove_timer(timer_source_t *ts){
} }
void embedded_dump_timer(){ void embedded_dump_timer(){
#if 0 #ifdef ENABLE_LOG_INFO
linked_item_t *it; linked_item_t *it;
int i = 0; int i = 0;
for (it = (linked_item_t *) timers; it ; it = it->next){ for (it = (linked_item_t *) timers; it ; it = it->next){
@ -143,13 +153,21 @@ void embedded_execute() {
ts->process(ts); ts->process(ts);
} }
#endif #endif
// race condition.. poll data source, IRQ occurs -> data source gets ready -> IDLE hook makes MCU sleep?
// disable IRQs and check if run loop iteration has been requested. if not, go to sleep
hal_cpu_disable_irqs();
if (trigger_event_received){
hal_cpu_enable_irqs_and_sleep();
continue;
}
hal_cpu_enable_irqs();
} }
} }
#ifdef HAVE_TICK #ifdef HAVE_TICK
static void embedded_tick_handler(void){ static void embedded_tick_handler(void){
system_ticks++; system_ticks++;
trigger_event_received = 1;
} }
uint32_t embedded_get_ticks(void){ uint32_t embedded_get_ticks(void){