+/*
+ * 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.
+ */
+
+#include "ao.h"
+
+static const char * __xdata flight_reports[] = {
+ "...", /* startup, 'S' */
+ "..", /* idle 'I' */
+ ".--.", /* launchpad 'P' */
+ "-...", /* boost 'B' */
+ "-.-.", /* coast 'C' */
+ ".-", /* apogee 'A' */
+ "-..", /* drogue 'D' */
+ "--", /* main 'M' */
+ ".-..", /* landed 'L' */
+ ".-.-.-", /* invalid */
+};
+
+#if 1
+#define signal(time) ao_beep_for(AO_BEEP_MID, time)
+#else
+#define signal(time) ao_led_for(AO_LED_RED, time)
+#endif
+#define pause(time) ao_delay(time)
+
+static __xdata enum ao_flight_state ao_report_state;
+
+static void
+ao_report_beep(void) __reentrant
+{
+ char *r = flight_reports[ao_flight_state];
+ char c;
+
+ if (!r)
+ return;
+ while (c = *r++) {
+ if (c == '.')
+ signal(AO_MS_TO_TICKS(200));
+ else
+ signal(AO_MS_TO_TICKS(600));
+ pause(AO_MS_TO_TICKS(200));
+ }
+ pause(AO_MS_TO_TICKS(400));
+}
+
+static void
+ao_report_digit(uint8_t digit) __reentrant
+{
+ if (!digit) {
+ signal(AO_MS_TO_TICKS(500));
+ pause(AO_MS_TO_TICKS(200));
+ } else {
+ while (digit--) {
+ signal(AO_MS_TO_TICKS(200));
+ pause(AO_MS_TO_TICKS(200));
+ }
+ }
+ pause(AO_MS_TO_TICKS(300));
+}
+
+static void
+ao_report_altitude(void)
+{
+ __xdata int16_t agl = ao_pres_to_altitude(ao_min_pres) - ao_pres_to_altitude(ao_ground_pres);
+ __xdata uint8_t digits[10];
+ __xdata uint8_t ndigits, i;
+
+ if (agl < 0)
+ agl = 0;
+ ndigits = 0;
+ do {
+ digits[ndigits++] = agl % 10;
+ agl /= 10;
+ } while (agl);
+
+ for (;;) {
+ ao_report_beep();
+ i = ndigits;
+ do
+ ao_report_digit(digits[--i]);
+ while (i != 0);
+ pause(AO_SEC_TO_TICKS(5));
+ }
+}
+
+void
+ao_report(void)
+{
+ ao_report_state = ao_flight_state;
+ for(;;) {
+ if (ao_flight_state == ao_flight_landed)
+ ao_report_altitude();
+ ao_report_beep();
+ __critical {
+ while (ao_report_state == ao_flight_state)
+ ao_sleep(DATA_TO_XDATA(&ao_flight_state));
+ ao_report_state = ao_flight_state;
+ }
+ }
+}
+
+static __xdata struct ao_task ao_report_task;
+
+void
+ao_report_init(void)
+{
+ ao_add_task(&ao_report_task, ao_report, "report");
+}