+/*
+ * Copyright © 2012 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>
+#include <ao_exti.h>
+
+static uint8_t sensor_value;
+static uint8_t vidtime_monitor;
+
+static void
+vidtime(void)
+{
+ ao_exti_enable(AO_SENSOR_PORT, AO_SENSOR_PIN);
+ for (;;) {
+ while (!vidtime_monitor)
+ ao_sleep(&vidtime_monitor);
+ ao_sleep(&sensor_value);
+ printf("%d\n", sensor_value);
+ flush();
+ }
+}
+
+static void
+sensor_interrupt(void)
+{
+ uint8_t new = ao_gpio_get(AO_SENSOR_PORT, AO_SENSOR_PIN, foo);
+
+#if 0
+ if (new)
+ ao_exti_set_mode(AO_SENSOR_PORT, AO_SENSOR_PIN,
+ AO_EXTI_MODE_FALLING);
+ else
+ ao_exti_set_mode(AO_SENSOR_PORT, AO_SENSOR_PIN,
+ AO_EXTI_MODE_RISING);
+#endif
+ if (new != sensor_value) {
+ sensor_value = new;
+ ao_wakeup(&sensor_value);
+ }
+}
+
+static struct ao_task vidtime_task;
+
+static void
+ao_init_vidtime(void)
+{
+ ao_enable_port(AO_SENSOR_PORT);
+ ao_exti_setup(AO_SENSOR_PORT, AO_SENSOR_PIN,
+ AO_EXTI_MODE_RISING|
+ AO_EXTI_MODE_FALLING|
+ AO_EXTI_MODE_PULL_NONE|
+ AO_EXTI_PRIORITY_MED,
+ sensor_interrupt);
+ ao_add_task(&vidtime_task, vidtime, "vidtime");
+}
+
+static void
+ao_set_vidtime(void)
+{
+ ao_cmd_decimal();
+ if (ao_cmd_status == ao_cmd_success) {
+ vidtime_monitor = ao_cmd_lex_i != 0;
+ ao_wakeup(&vidtime_monitor);
+ }
+}
+
+const struct ao_cmds ao_vidtime_cmds[] = {
+ { ao_set_vidtime, "V <0 off, 1 on>\0Enable/disable timing monitor" },
+ { 0, NULL }
+};
+
+void main(void)
+{
+ ao_clock_init();
+
+ ao_task_init();
+
+ ao_timer_init();
+
+ ao_dma_init();
+
+ ao_init_vidtime();
+
+ ao_usb_init();
+
+ ao_cmd_init();
+
+ ao_cmd_register(&ao_vidtime_cmds[0]);
+
+ ao_start_scheduler();
+}