altos: Move micropeak sources around

[fw/altos] / src / product / ao_micropeak.h

diff --git a/src/product/ao_micropeak.h b/src/product/ao_micropeak.h
new file mode 100644 (file)
index 0000000..3e3dec1
--- /dev/null
+++ b/src/product/ao_micropeak.h
@@ -0,0 +1,78 @@
+/*
+ * 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.
+ */
+
+#ifndef _AO_MICROPEAK_H_
+#define _AO_MICROPEAK_H_
+
+#define SAMPLE_SLEEP           AO_MS_TO_TICKS(96)
+
+/* 16 sample, or about two seconds worth */
+#define GROUND_AVG_SHIFT       4
+#define GROUND_AVG             (1 << GROUND_AVG_SHIFT)
+
+/* Pressure change (in Pa) to detect boost */
+#define BOOST_DETECT           120     /* 10m at sea level, 12m at 2000m */
+
+/* Wait after power on before doing anything to give the user time to assemble the rocket */
+#define BOOST_DELAY            AO_SEC_TO_TICKS(60)
+
+/* Pressure change (in Pa) to detect landing */
+#define LAND_DETECT            24      /* 2m at sea level, 2.4m at 2000m */
+
+/* Current sensor pressure value */
+extern uint32_t        pa;
+
+/* Average pressure value on ground */
+extern uint32_t        pa_ground;
+
+/* Minimum recorded filtered pressure value */
+extern uint32_t        pa_min;
+
+/* Pressure values converted to altitudes */
+extern alt_t   ground_alt, max_alt;
+
+/* max_alt - ground_alt */
+extern alt_t   ao_max_height;
+
+void
+ao_pa_get(void);
+
+void
+ao_microflight(void);
+
+#define ACCEL_LOCK_PA          -20
+#define ACCEL_LOCK_TIME                10
+
+extern uint32_t        ao_k_pa;                /* 24.8 fixed point */
+extern int32_t ao_k_pa_speed;          /* 16.16 fixed point */
+extern int32_t ao_k_pa_accel;          /* 16.16 fixed point */
+
+extern uint32_t        ao_pa;                  /* integer portion */
+extern int16_t ao_pa_speed;            /* integer portion */
+extern int16_t ao_pa_accel;            /* integer portion */
+
+void
+ao_microkalman_init(void);
+
+void
+ao_microkalman_predict(void);
+
+void
+ao_microkalman_correct(void);
+       
+#endif
+