altos: Rename 'core' to 'kernel'

[fw/altos] / src / core / ao_convert.c

diff --git a/src/core/ao_convert.c b/src/core/ao_convert.c
deleted file mode 100644 (file)
index aa9b5f4..0000000
--- a/src/core/ao_convert.c
+++ /dev/null
@@ -1,89 +0,0 @@
-/*
- * 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.
- */
-
-#if !defined(AO_CONVERT_TEST) && !defined(AO_FLIGHT_TEST)
-#include "ao.h"
-#endif
-
-static const int16_t altitude_table[] = {
-#include "altitude.h"
-};
-
-#define ALT_FRAC_SCALE (1 << ALT_FRAC_BITS)
-#define ALT_FRAC_MASK  (ALT_FRAC_SCALE - 1)
-
-int16_t
-ao_pres_to_altitude(int16_t pres) __reentrant
-{
-       uint8_t o;
-       int16_t part;
-
-       if (pres < 0)
-               pres = 0;
-       o = pres >> ALT_FRAC_BITS;
-       part = pres & ALT_FRAC_MASK;
-
-       return ((int32_t) altitude_table[o] * (ALT_FRAC_SCALE - part) +
-               (int32_t) altitude_table[o+1] * part + (ALT_FRAC_SCALE >> 1)) >> ALT_FRAC_BITS;
-}
-
-#if AO_NEED_ALTITUDE_TO_PRES
-int16_t
-ao_altitude_to_pres(int16_t alt) __reentrant
-{
-       int16_t span, sub_span;
-       uint8_t l, h, m;
-       int32_t pres;
-
-       l = 0;
-       h = NALT - 1;
-       while ((h - l) != 1) {
-               m = (l + h) >> 1;
-               if (altitude_table[m] < alt)
-                       h = m;
-               else
-                       l = m;
-       }
-       span = altitude_table[l] - altitude_table[h];
-       sub_span = altitude_table[l] - alt;
-       pres = ((((int32_t) l * (span - sub_span) + (int32_t) h * sub_span) << ALT_FRAC_BITS) + (span >> 1)) / span;
-       if (pres > 32767)
-               pres = 32767;
-       if (pres < 0)
-               pres = 0;
-       return (int16_t) pres;
-}
-#endif
-
-#if 0
-int16_t
-ao_temp_to_dC(int16_t temp) __reentrant
-{
-       int16_t ret;
-
-       /* Output voltage at 0°C = 0.755V
-        * Coefficient = 0.00247V/°C
-        * Reference voltage = 1.25V
-        *
-        * temp = ((value / 32767) * 1.25 - 0.755) / 0.00247
-        *      = (value - 19791.268) / 32768 * 1.25 / 0.00247
-        *      ≃ (value - 19791) * 1012 / 65536
-        */
-       ret = ((temp - 19791) * 1012L) >> 16;
-       return ret;
-}
-#endif