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author | Romain Forlot <romain.forlot@iot.bzh> | 2017-06-20 10:24:05 +0000 |
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committer | Romain Forlot <romain.forlot@iot.bzh> | 2017-06-20 10:24:05 +0000 |
commit | 32e25cbca210a359b09768537b6f443fe90a3070 (patch) | |
tree | 3309794c15d8a8f8e9c1c08cad072ee1378813ba /CAN-binder/libs/bitfield-c/src/canutil/write.c | |
parent | 76c43dec62b2e21cd6446360c00d4fe6b437533f (diff) |
Separation Generator to a dedicated repo
Change-Id: Id94831651c3266861435272a6e36c7884bef2c45
Signed-off-by: Romain Forlot <romain.forlot@iot.bzh>
Diffstat (limited to 'CAN-binder/libs/bitfield-c/src/canutil/write.c')
-rw-r--r-- | CAN-binder/libs/bitfield-c/src/canutil/write.c | 48 |
1 files changed, 0 insertions, 48 deletions
diff --git a/CAN-binder/libs/bitfield-c/src/canutil/write.c b/CAN-binder/libs/bitfield-c/src/canutil/write.c deleted file mode 100644 index 7f3a3e0..0000000 --- a/CAN-binder/libs/bitfield-c/src/canutil/write.c +++ /dev/null @@ -1,48 +0,0 @@ -#include <canutil/write.h> -#include <bitfield/bitfield.h> -#include <bitfield/8byte.h> - -uint64_t float_to_fixed_point(const float value, const float factor, - const float offset) { - float raw = (value - offset) / factor; - if(raw > 0) { - // round up to avoid losing precision when we cast to an int - // TODO do we need a way to encode an int back to a signal without any - // rounding? - raw += 0.5; - } - return (uint64_t)raw; -} - -uint64_t eightbyte_encode_float(float value, uint8_t bit_offset, uint8_t bit_size, - float factor, float offset) { - uint64_t result = 0; - if(!eightbyte_set_bitfield(float_to_fixed_point(value, factor, offset), - bit_offset, bit_size, &result)) { - // debug("%f will not fit in a %d bit field", value, bit_size); - } - return result; -} - -uint64_t eightbyte_encode_bool(const bool value, const uint8_t bit_offset, - const uint8_t bit_size) { - return eightbyte_encode_float(value, bit_offset, bit_size, 1.0, 0); -} - -bool bitfield_encode_float(const float value, const uint8_t bit_offset, - const uint8_t bit_size, const float factor, const float offset, - uint8_t destination[], const uint8_t destination_length) { - if(!set_bitfield(float_to_fixed_point(value, factor, offset), bit_offset, - bit_size, destination, destination_length)) { - // debug("%f will not fit in a %d bit field", value, bit_size); - return false; - } - return true; -} - -bool bitfield_encode_bool(const bool value, const uint8_t bit_offset, - const uint8_t bit_size, uint8_t destination[], - const uint16_t destination_length) { - return bitfield_encode_float(value, bit_offset, bit_size, 1.0, 0, - destination, destination_length); -} |