altos: Add button driver and sample user

[fw/altos] / src / product / ao_terraui.c

diff --git a/src/product/ao_terraui.c b/src/product/ao_terraui.c
new file mode 100644 (file)
index 0000000..3885db4
--- /dev/null
+++ b/src/product/ao_terraui.c
@@ -0,0 +1,45 @@
+/*
+ * Copyright © 2011 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.
+ */
+
+#include "ao.h"
+
+static void
+ao_terraui(void)
+{
+       for (;;) {
+               char    b = ao_button_get();
+               switch (b) {
+               case 1:
+                       ao_beep_for(AO_BEEP_LOW, AO_MS_TO_TICKS(200));
+                       break;
+               case 2:
+                       ao_beep_for(AO_BEEP_MID, AO_MS_TO_TICKS(200));
+                       break;
+               case 3:
+                       ao_beep_for(AO_BEEP_HIGH, AO_MS_TO_TICKS(200));
+                       break;
+               }
+       }
+}
+
+__xdata static struct ao_task ao_terraui_task;
+
+void
+ao_terraui_init(void)
+{
+       ao_add_task(&ao_terraui_task, ao_terraui, "ui");
+}