35 lines
750 B
C
35 lines
750 B
C
/* RLC/MAC scheduler, 3GPP TS 44.060 */
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#pragma once
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#include <stdint.h>
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struct gprs_rlcmac_rts_block_ind {
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uint8_t ts;
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uint32_t fn;
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uint8_t usf;
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};
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uint32_t rrbp2fn(uint32_t cur_fn, uint8_t rrbp);
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int gprs_rlcmac_rcv_rts_block(struct gprs_rlcmac_rts_block_ind *bi);
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static inline bool fn_valid(uint32_t fn)
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{
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uint32_t f = fn % 13;
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return f == 0 || f == 4 || f == 8;
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}
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#define GSM_MAX_FN_THRESH (GSM_MAX_FN >> 1)
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/* 0: equal, -1: fn1 BEFORE fn2, 1: fn1 AFTER fn2 */
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static inline int fn_cmp(uint32_t fn1, uint32_t fn2)
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{
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if (fn1 == fn2)
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return 0;
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/* FN1 goes before FN2: */
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if ((fn1 < fn2 && (fn2 - fn1) < GSM_MAX_FN_THRESH) ||
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(fn1 > fn2 && (fn1 - fn2) > GSM_MAX_FN_THRESH))
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return -1;
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/* FN1 goes after FN2: */
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return 1;
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}
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