gsm_utils: Just add some constant and timekeeping utils
Signed-off-by: Sylvain Munaut <tnt@246tNt.com>
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@ -27,6 +27,13 @@
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#include <stdint.h>
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#define ADD_MODULO(sum, delta, modulo) do { \
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if ((sum += delta) >= modulo) \
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sum -= modulo; \
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} while (0)
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#define GSM_MAX_FN (26*51*2048)
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struct gsm_time {
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uint32_t fn; /* FN count */
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uint16_t t1; /* FN div (26*51) */
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