Switch from GPLv2 to GPLv2+

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

diff --git a/src/kernel/ao_task.h b/src/kernel/ao_task.h
index 9c56b48021d6dd4ebe83c69f44aa04c5ade023c3..f1dbd65426ae709353c0f226eda63a42c76ecaef 100644 (file)
--- a/src/kernel/ao_task.h
+++ b/src/kernel/ao_task.h
@@ -3,7 +3,8 @@
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
  *
  * This program is distributed in the hope that it will be useful, but
  * WITHOUT ANY WARRANTY; without even the implied warranty of
@@ -56,6 +57,10 @@ extern __data uint8_t ao_num_tasks;
 extern __xdata struct ao_task *__data ao_cur_task;
 extern __data uint8_t ao_task_minimize_latency;        /* Reduce IRQ latency */
 
+#ifndef HAS_ARCH_VALIDATE_CUR_STACK
+#define ao_validate_cur_stack()
+#endif
+
 /*
  ao_task.c
  */
@@ -68,10 +73,19 @@ extern __data uint8_t ao_task_minimize_latency;     /* Reduce IRQ latency */
 uint8_t
 ao_sleep(__xdata void *wchan);
 
+/* Suspend the current task until wchan is awoken or the timeout
+ * expires. returns:
+ *  0 on normal wake
+ *  1 on alarm
+ */
+uint8_t
+ao_sleep_for(__xdata void *wchan, uint16_t timeout);
+
 /* Wake all tasks sleeping on wchan */
 void
 ao_wakeup(__xdata void *wchan) __reentrant;
 
+#if 0
 /* set an alarm to go off in 'delay' ticks */
 void
 ao_alarm(uint16_t delay);
@@ -79,6 +93,7 @@ ao_alarm(uint16_t delay);
 /* Clear any pending alarm */
 void
 ao_clear_alarm(void);
+#endif
 
 /* Yield the processor to another task */
 void