diff options
Diffstat (limited to 'kernel/task/include/task/task.h')
| -rw-r--r-- | kernel/task/include/task/task.h | 19 |
1 files changed, 18 insertions, 1 deletions
diff --git a/kernel/task/include/task/task.h b/kernel/task/include/task/task.h index 40f18a0..99f16dc 100644 --- a/kernel/task/include/task/task.h +++ b/kernel/task/include/task/task.h @@ -4,6 +4,18 @@ #include "collection/list.h" /** + * Wakeup sources define the minimum power level + * at which a task that is waiting in a queue + * can be woken up + */ +enum wakeup_src { + WAKEUP_SRC_OFF = 0, //processor off, external interrupts may trigger this source + WAKEUP_SRC_CLOCK = 1, //main clock required + WAKEUP_SRC_IDLE = 2, //processor can be put in idle state + WAKEUP_SRC_ON = 3 //processor must stay on +}; + +/** * Task control block, contains runtime * information about tasks. */ @@ -23,8 +35,12 @@ struct tcb_t { /** Current wait queue that this task is in.*/ struct list_head queue; + /** ID of task. */ char id; + + enum wakeup_src wakeup_src; + }; /** @@ -39,7 +55,8 @@ struct tcb_t { .mem_high = _declared_stack_##name + stack_size - 1, \ .entry = entry_function, \ .queue = {}, \ - .id = pid \ + .id = pid, \ + .wakeup_src = WAKEUP_SRC_ON \ }; #endif
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