altoslib: Use symbols in AltosRomconfig instead of fixed offsets

[fw/altos] / README

diff --git a/README b/README
index 1244f8492d5db6566fc79cd8a02fe5bb8b0bd61f..282b9ce5a95d63139a9f3d0fdadb71c31884f831 100644 (file)
--- a/README
+++ b/README
@@ -17,18 +17,18 @@ Copyright and License
        with this program; if not, write to the Free Software Foundation, Inc.,
        59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
 
-Parameters:
+Tasking API:
 
- * Multi-tasking
- * Non-preemptive
- * Unix-style sleep/wakeup scheduling
- * Strict round-robin, no priorities
+        * Multi-tasking
+        * Non-preemptive
+        * Unix-style sleep/wakeup scheduling
+        * Strict round-robin, no priorities
 
-API:
+       uint8_t ao_sleep(void *wchan)
 
-       void ao_sleep(void *wchan)
-
-               Puts current task to sleep. Will wake up when wchan is signalled
+               Puts current task to sleep. Will wake up when wchan is
+               signalled (returning 0), or when an alarm has expired
+               (returning 1).
        
        void ao_wakeup(void *wchan)
 
@@ -52,3 +52,63 @@ API:
 
                Any fatal error should call this function, which can
                display the error code in some cryptic fashion.
+
+       void ao_wake_task(struct ao_task *task)
+
+               Wake the task as if the wchan it is waiting on had
+               been signalled.
+
+       void ao_alarm(uint16_t delay)
+
+               Queue an alarm to expire 'delay' ticks in the future.
+               The alarm will cause the task to wake from ao_sleep
+               and return 1. Alarms are cancelled if the task is
+               awoken by ao_wakeup or ao_wake_task.
+
+       void ao_exit(void)
+
+               Stop the current task and remove it from the list of
+               available tasks.
+
+Timer API
+
+        * Regular timer ticks (at 100Hz, by default)
+        * All time values are in ticks
+
+        uint16_t ao_time(void)
+
+               Returns the curent tick count
+
+       void ao_delay(uint16_t delay)
+
+               Suspend task execution for 'delay' ticks.
+
+DMA API
+
+        * Static DMA entry allocation
+
+       uint8_t ao_dma_alloc(uint8_t *done)
+
+               Allocates one of the 5 DMA units on the cc1111
+               processor. When this DMA unit is finished, it will
+               set *done to 1 and wakeup anyone waiting on that.
+
+       void ao_dma_set_transfer(uint8_t id, void *src, void *dst,
+                                uint16_t count, uint8_t cfg0, uint8_t cfg1)
+
+               Prepares the specified DMA unit for operation.
+
+       void ao_dma_start(uint8_t id)
+
+               Start DMA on the specified channel.
+
+       void ao_dma_trigger(uint8_t id)
+
+               Manually trigger a DMA channel
+
+       void ao_dma_abort(uint8_t id)
+
+               Abort a pending DMA transfer, signalling
+               that by setting the associated 'done' to
+               AO_DMA_ABORTED and waking any task
+               sleeping on that.