--- /dev/null
+/*
+ * 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"
+
+#if IGNITE_ON_P2
+#define AO_IGNITER_DROGUE P2_3
+#define AO_IGNITER_MAIN P2_4
+#define AO_IGNITER_DIR P2DIR
+#define AO_IGNITER_DROGUE_BIT (1 << 3)
+#define AO_IGNITER_MAIN_BIT (1 << 4)
+#endif
+
+#if IGNITE_ON_P0
+#define AO_IGNITER_DROGUE P0_5
+#define AO_IGNITER_MAIN P0_4
+#define AO_IGNITER_DIR P0DIR
+#define AO_IGNITER_DROGUE_BIT (1 << 5)
+#define AO_IGNITER_MAIN_BIT (1 << 4)
+#endif
+
+/* test these values with real igniters */
+#define AO_IGNITER_OPEN 1000
+#define AO_IGNITER_CLOSED 7000
+#define AO_IGNITER_FIRE_TIME AO_MS_TO_TICKS(50)
+#define AO_IGNITER_CHARGE_TIME AO_MS_TO_TICKS(2000)
+
+struct ao_ignition {
+ uint8_t request;
+ uint8_t fired;
+ uint8_t firing;
+};
+
+__xdata struct ao_ignition ao_ignition[2];
+
+void
+ao_ignite(enum ao_igniter igniter) __critical
+{
+ ao_ignition[igniter].request = 1;
+ ao_wakeup(&ao_ignition);
+}
+
+enum ao_igniter_status
+ao_igniter_status(enum ao_igniter igniter)
+{
+ __xdata struct ao_adc adc;
+ __pdata int16_t value;
+ __pdata uint8_t request, firing, fired;
+
+ __critical {
+ ao_adc_get(&adc);
+ request = ao_ignition[igniter].request;
+ fired = ao_ignition[igniter].fired;
+ firing = ao_ignition[igniter].firing;
+ }
+ if (firing || (request && !fired))
+ return ao_igniter_active;
+
+ value = (AO_IGNITER_CLOSED>>1);
+ switch (igniter) {
+ case ao_igniter_drogue:
+ value = adc.sense_d;
+ break;
+ case ao_igniter_main:
+ value = adc.sense_m;
+ break;
+ }
+ if (value < AO_IGNITER_OPEN)
+ return ao_igniter_open;
+ else if (value > AO_IGNITER_CLOSED)
+ return ao_igniter_ready;
+ else
+ return ao_igniter_unknown;
+}
+
+void
+ao_igniter_fire(enum ao_igniter igniter) __critical
+{
+ ao_ignition[igniter].firing = 1;
+ switch(ao_config.ignite_mode) {
+ case AO_IGNITE_MODE_DUAL:
+ switch (igniter) {
+ case ao_igniter_drogue:
+ AO_IGNITER_DROGUE = 1;
+ ao_delay(AO_IGNITER_FIRE_TIME);
+ AO_IGNITER_DROGUE = 0;
+ break;
+ case ao_igniter_main:
+ AO_IGNITER_MAIN = 1;
+ ao_delay(AO_IGNITER_FIRE_TIME);
+ AO_IGNITER_MAIN = 0;
+ break;
+ }
+ break;
+ case AO_IGNITE_MODE_APOGEE:
+ switch (igniter) {
+ case ao_igniter_drogue:
+ AO_IGNITER_DROGUE = 1;
+ ao_delay(AO_IGNITER_FIRE_TIME);
+ AO_IGNITER_DROGUE = 0;
+ ao_delay(AO_IGNITER_CHARGE_TIME);
+ AO_IGNITER_MAIN = 1;
+ ao_delay(AO_IGNITER_FIRE_TIME);
+ AO_IGNITER_MAIN = 0;
+ break;
+ }
+ break;
+ case AO_IGNITE_MODE_MAIN:
+ switch (igniter) {
+ case ao_igniter_main:
+ AO_IGNITER_DROGUE = 1;
+ ao_delay(AO_IGNITER_FIRE_TIME);
+ AO_IGNITER_DROGUE = 0;
+ ao_delay(AO_IGNITER_CHARGE_TIME);
+ AO_IGNITER_MAIN = 1;
+ ao_delay(AO_IGNITER_FIRE_TIME);
+ AO_IGNITER_MAIN = 0;
+ break;
+ }
+ break;
+ }
+ ao_ignition[igniter].firing = 0;
+}
+
+void
+ao_igniter(void)
+{
+ __xdata enum ao_ignter igniter;
+
+ ao_config_get();
+ for (;;) {
+ ao_sleep(&ao_ignition);
+ for (igniter = ao_igniter_drogue; igniter <= ao_igniter_main; igniter++) {
+ if (ao_ignition[igniter].request && !ao_ignition[igniter].fired) {
+ if (igniter == ao_igniter_drogue && ao_config.apogee_delay)
+ ao_delay(AO_SEC_TO_TICKS(ao_config.apogee_delay));
+
+ ao_igniter_fire(igniter);
+ ao_delay(AO_IGNITER_CHARGE_TIME);
+ ao_ignition[igniter].fired = 1;
+ }
+ }
+ }
+}
+
+void
+ao_ignite_manual(void)
+{
+ ao_cmd_white();
+ if (!ao_match_word("DoIt"))
+ return;
+ ao_cmd_white();
+ if (ao_cmd_lex_c == 'm') {
+ if(ao_match_word("main"))
+ ao_igniter_fire(ao_igniter_main);
+ } else {
+ if(ao_match_word("drogue"))
+ ao_igniter_fire(ao_igniter_drogue);
+ }
+}
+
+static __code char * __code igniter_status_names[] = {
+ "unknown", "ready", "active", "open"
+};
+
+void
+ao_ignite_print_status(enum ao_igniter igniter, __code char *name) __reentrant
+{
+ enum ao_igniter_status status = ao_igniter_status(igniter);
+ printf("Igniter: %6s Status: %s\n",
+ name,
+ igniter_status_names[status]);
+}
+
+void
+ao_ignite_test(void)
+{
+ ao_ignite_print_status(ao_igniter_drogue, "drogue");
+ ao_ignite_print_status(ao_igniter_main, "main");
+}
+
+__code struct ao_cmds ao_ignite_cmds[] = {
+ { ao_ignite_manual, "i <key> {main|drogue}\0Fire igniter. <key> is doit with D&I" },
+ { ao_ignite_test, "t\0Test igniter" },
+ { 0, NULL },
+};
+
+__xdata struct ao_task ao_igniter_task;
+
+void
+ao_ignite_set_pins(void)
+{
+ AO_IGNITER_DROGUE = 0;
+ AO_IGNITER_MAIN = 0;
+ AO_IGNITER_DIR |= AO_IGNITER_DROGUE_BIT | AO_IGNITER_MAIN_BIT;
+}
+
+void
+ao_igniter_init(void)
+{
+ ao_ignite_set_pins();
+ ao_cmd_register(&ao_ignite_cmds[0]);
+ ao_add_task(&ao_igniter_task, ao_igniter, "igniter");
+}
projects / fw / altos / blobdiff