altos: Add task queues.

[fw/altos] / src / core / ao_task.h

diff --git a/src/core/ao_task.h b/src/core/ao_task.h
index 4319d63253e218ef69f1930c5cd2f081c29c882b..b3f152a04c0f47d42ebd2833cf06c617694ca881 100644 (file)
--- a/src/core/ao_task.h
+++ b/src/core/ao_task.h
@@ -17,6 +17,9 @@
 
 #ifndef _AO_TASK_H_
 #define _AO_TASK_H_
+#if HAS_TASK_QUEUE
+#include <ao_list.h>
+#endif
 
 /* An AltOS task */
 struct ao_task {
@@ -25,6 +28,10 @@ struct ao_task {
        ao_arch_task_members            /* any architecture-specific fields */
        uint8_t task_id;                /* unique id */
        __code char *name;              /* task name */
+#if HAS_TASK_QUEUE
+       struct ao_list  queue;
+       struct ao_list  alarm_queue;
+#endif
        uint8_t stack[AO_STACK_SIZE];   /* saved stack */
 #if HAS_SAMPLE_PROFILE
        uint32_t ticks;
@@ -39,7 +46,6 @@ struct ao_task {
 
 extern __xdata struct ao_task * __xdata ao_tasks[AO_NUM_TASKS];
 extern __data uint8_t ao_num_tasks;
-extern __data uint8_t ao_cur_task_index;
 extern __xdata struct ao_task *__data ao_cur_task;
 
 /*
@@ -74,6 +80,12 @@ ao_yield(void) ao_arch_naked_declare;
 void
 ao_add_task(__xdata struct ao_task * task, void (*start)(void), __code char *name) __reentrant;
 
+#if HAS_TASK_QUEUE
+/* Called on timer interrupt to check alarms */
+void
+ao_task_check_alarm(uint16_t tick);
+#endif
+
 /* Terminate the current task */
 void
 ao_exit(void);
@@ -86,4 +98,11 @@ ao_task_info(void);
 void
 ao_start_scheduler(void);
 
+#if HAS_TASK_QUEUE
+void
+ao_task_init(void);
+#else
+#define ao_task_init()
+#endif
+
 #endif