+ AltOS - 8051 operating system for Altus-Metrum projects
+
+Copyright and License
+
+ Copyright © 2009 Keith Packard <keithp@keithp.com>
+
+ 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.
+
+ This program is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ General Public License for more details.
+
+ You should have received a copy of the GNU General Public License along
+ with this program; if not, write to the Free Software Foundation, Inc.,
+ 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
+
+Parameters:
+
+ * Multi-tasking
+ * Non-preemptive
+ * Unix-style sleep/wakeup scheduling
+ * Strict round-robin, no priorities
+
+API:
+
+ void ao_sleep(void *wchan)
+
+ Puts current task to sleep. Will wake up when wchan is signalled
+
+ void ao_wakeup(void *wchan)
+
+ Wakeup all tasks sleeping on wchan
+
+ void ao_add_task(struct ao_task *task, void (*start)(void))
+
+ Adds a task to the queue of available tasks
+
+ void ao_start_scheduler(void)
+
+ Invokes the scheduler, starting the operating system
+
+ void ao_yield(void)
+
+ Switches to another task which is ready to run. Allows
+ tasks which want to run for a while to give up the CPU
+ without needing to sleep
+
+ void ao_panic(uint8_t reason)
+
+ Any fatal error should call this function, which can
+ display the error code in some cryptic fashion.
projects / fw / altos / blobdiff