mirror of https://gerrit.osmocom.org/libosmocore
210 lines
3.3 KiB
C
210 lines
3.3 KiB
C
/*! \file gsm_04_60.h
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* General Packet Radio Service (GPRS).
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* Radio Link Control / Medium Access Control (RLC/MAC) protocol
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* 3GPP TS 04.60 version 8.27.0 Release 1999
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*/
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#pragma once
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#include <stdint.h>
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#if OSMO_IS_LITTLE_ENDIAN == 1
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/* TS 04.60 10.3a.4.1.1 */
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struct gprs_rlc_ul_header_egprs_1 {
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uint8_t r:1,
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si:1,
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cv:4,
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tfi_hi:2;
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uint8_t tfi_lo:3,
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bsn1_hi:5;
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uint8_t bsn1_lo:6,
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bsn2_hi:2;
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uint8_t bsn2_lo:8;
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uint8_t cps:5,
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rsb:1,
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pi:1,
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spare_hi:1;
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uint8_t spare_lo:6,
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dummy:2;
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} __attribute__ ((packed));
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/* TS 04.60 10.3a.4.2.1 */
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struct gprs_rlc_ul_header_egprs_2 {
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uint8_t r:1,
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si:1,
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cv:4,
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tfi_hi:2;
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uint8_t tfi_lo:3,
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bsn1_hi:5;
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uint8_t bsn1_lo:6,
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cps_hi:2;
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uint8_t cps_lo:1,
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rsb:1,
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pi:1,
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spare_hi:5;
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uint8_t spare_lo:5,
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dummy:3;
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} __attribute__ ((packed));
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/* TS 04.60 10.3a.4.3.1 */
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struct gprs_rlc_ul_header_egprs_3 {
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uint8_t r:1,
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si:1,
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cv:4,
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tfi_hi:2;
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uint8_t tfi_lo:3,
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bsn1_hi:5;
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uint8_t bsn1_lo:6,
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cps_hi:2;
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uint8_t cps_lo:2,
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spb:2,
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rsb:1,
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pi:1,
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spare:1,
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dummy:1;
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} __attribute__ ((packed));
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struct gprs_rlc_dl_header_egprs_1 {
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uint8_t usf:3,
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es_p:2,
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rrbp:2,
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tfi_hi:1;
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uint8_t tfi_lo:4,
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pr:2,
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bsn1_hi:2;
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uint8_t bsn1_mid:8;
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uint8_t bsn1_lo:1,
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bsn2_hi:7;
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uint8_t bsn2_lo:3,
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cps:5;
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} __attribute__ ((packed));
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struct gprs_rlc_dl_header_egprs_2 {
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uint8_t usf:3,
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es_p:2,
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rrbp:2,
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tfi_hi:1;
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uint8_t tfi_lo:4,
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pr:2,
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bsn1_hi:2;
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uint8_t bsn1_mid:8;
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uint8_t bsn1_lo:1,
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cps:3,
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dummy:4;
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} __attribute__ ((packed));
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struct gprs_rlc_dl_header_egprs_3 {
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uint8_t usf:3,
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es_p:2,
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rrbp:2,
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tfi_hi:1;
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uint8_t tfi_lo:4,
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pr:2,
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bsn1_hi:2;
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uint8_t bsn1_mid:8;
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uint8_t bsn1_lo:1,
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cps:4,
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spb:2,
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dummy:1;
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} __attribute__ ((packed));
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#else
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/* TS 04.60 10.3a.4.1.1 */
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struct gprs_rlc_ul_header_egprs_1 {
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uint8_t tfi_hi:2,
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cv:4,
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si:1,
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r:1;
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uint8_t bsn1_hi:5,
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tfi_lo:3;
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uint8_t bsn2_hi:2,
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bsn1_lo:6;
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uint8_t bsn2_lo:8;
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uint8_t spare_hi:1,
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pi:1,
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rsb:1,
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cps:5;
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uint8_t dummy:2,
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spare_lo:6;
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} __attribute__ ((packed));
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/* TS 04.60 10.3a.4.2.1 */
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struct gprs_rlc_ul_header_egprs_2 {
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uint8_t tfi_hi:2,
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cv:4,
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si:1,
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r:1;
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uint8_t bsn1_hi:5,
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tfi_lo:3;
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uint8_t cps_hi:2,
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bsn1_lo:6;
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uint8_t spare_hi:5,
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pi:1,
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rsb:1,
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cps_lo:1;
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uint8_t dummy:3,
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spare_lo:5;
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} __attribute__ ((packed));
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/* TS 04.60 10.3a.4.3.1 */
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struct gprs_rlc_ul_header_egprs_3 {
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uint8_t tfi_hi:2,
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cv:4,
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si:1,
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r:1;
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uint8_t bsn1_hi:5,
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tfi_lo:3;
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uint8_t cps_hi:2,
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bsn1_lo:6;
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uint8_t dummy:1,
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spare:1,
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pi:1,
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rsb:1,
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spb:2,
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cps_lo:2;
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} __attribute__ ((packed));
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struct gprs_rlc_dl_header_egprs_1 {
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uint8_t tfi_hi:1,
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rrbp:2,
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es_p:2,
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usf:3;
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uint8_t bsn1_hi:2,
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pr:2,
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tfi_lo:4;
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uint8_t bsn1_mid:8;
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uint8_t bsn2_hi:7,
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bsn1_lo:1;
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uint8_t cps:5,
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bsn2_lo:3;
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} __attribute__ ((packed));
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struct gprs_rlc_dl_header_egprs_2 {
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uint8_t tfi_hi:1,
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rrbp:2,
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es_p:2,
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usf:3;
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uint8_t bsn1_hi:2,
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pr:2,
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tfi_lo:4;
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uint8_t bsn1_mid:8;
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uint8_t dummy:4,
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cps:3,
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bsn1_lo:1;
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} __attribute__ ((packed));
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struct gprs_rlc_dl_header_egprs_3 {
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uint8_t tfi_hi:1,
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rrbp:2,
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es_p:2,
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usf:3;
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uint8_t bsn1_hi:2,
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pr:2,
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tfi_lo:4;
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uint8_t bsn1_mid:8;
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uint8_t dummy:1,
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spb:2,
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cps:4,
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bsn1_lo:1;
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} __attribute__ ((packed));
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#endif
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