1 /* Messages to be sent between the different layers */
3 /* (C) 2010 by Harald Welte <laforge@gnumonks.org>
4 * (C) 2010 by Holger Hans Peter Freyther
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
18 * You should have received a copy of the GNU General Public License along
19 * with this program; if not, write to the Free Software Foundation, Inc.,
20 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
24 #ifndef l1a_l23_interface_h
25 #define l1a_l23_interface_h
27 #define L1CTL_FBSB_REQ 1
28 #define L1CTL_FBSB_CONF 2
29 #define L1CTL_DATA_IND 3
30 #define L1CTL_RACH_REQ 4
31 #define L1CTL_DM_EST_REQ 5
32 #define L1CTL_DATA_REQ 7
33 #define L1CTL_RESET_IND 8
34 #define L1CTL_PM_REQ 9 /* power measurement */
35 #define L1CTL_PM_CONF 10 /* power measurement */
36 #define L1CTL_ECHO_REQ 11
37 #define L1CTL_ECHO_CONF 12
38 #define L1CTL_RACH_CONF 13
39 #define L1CTL_RESET_REQ 14
40 #define L1CTL_RESET_CONF 15
41 #define L1CTL_DATA_CONF 16
42 #define L1CTL_CCCH_MODE_REQ 17
43 #define L1CTL_CCCH_MODE_CONF 18
47 CCCH_MODE_NON_COMBINED,
52 * NOTE: struct size. We do add manual padding out of the believe
53 * that it will avoid some unaligned access.
56 /* there are no more messages in a sequence */
57 #define L1CTL_F_DONE 0x01
64 } __attribute__((packed));
67 * downlink info ... down from the BTS..
69 struct l1ctl_info_dl {
70 /* GSM 08.58 channel number (9.3.1) */
72 /* GSM 08.58 link identifier (9.3.2) */
74 /* the ARFCN and the band. FIXME: what about MAIO? */
79 uint8_t rx_level; /* 0 .. 63 in typical GSM notation (dBm+110) */
80 uint8_t snr; /* Signal/Noise Ration (dB) */
85 } __attribute__((packed));
87 /* new CCCH was found. This is following the header */
88 struct l1ctl_fbsb_conf {
89 int16_t initial_freq_err;
92 /* FIXME: contents of cell_info ? */
93 } __attribute__((packed));
95 /* CCCH mode was changed */
96 struct l1ctl_ccch_mode_conf {
97 uint8_t ccch_mode; /* enum ccch_mode */
99 } __attribute__((packed));
101 /* data on the CCCH was found. This is following the header */
102 struct l1ctl_data_ind {
104 } __attribute__((packed));
109 struct l1ctl_info_ul {
110 /* GSM 08.58 channel number (9.3.1) */
112 /* GSM 08.58 link identifier (9.3.2) */
118 } __attribute__((packed));
122 * the l1_info_ul header is in front
124 struct l1ctl_fbsb_req {
126 uint16_t timeout; /* in TDMA frames */
128 uint16_t freq_err_thresh1;
129 uint16_t freq_err_thresh2;
131 uint8_t num_freqerr_avg;
132 uint8_t flags; /* L1CTL_FBSB_F_* */
133 uint8_t sync_info_idx;
134 uint8_t ccch_mode; /* enum ccch_mode */
135 } __attribute__((packed));
137 #define L1CTL_FBSB_F_FB0 (1 << 0)
138 #define L1CTL_FBSB_F_FB1 (1 << 1)
139 #define L1CTL_FBSB_F_SB (1 << 2)
140 #define L1CTL_FBSB_F_FB01SB (L1CTL_FBSB_F_FB0|L1CTL_FBSB_F_FB1|L1CTL_FBSB_F_SB)
143 * msg for CCCH_MODE_REQ
144 * the l1_info_ul header is in front
146 struct l1ctl_ccch_mode_req {
147 uint8_t ccch_mode; /* enum ccch_mode */
149 } __attribute__((packed));
151 /* the l1_info_ul header is in front */
152 struct l1ctl_rach_req {
155 } __attribute__((packed));
157 struct l1ctl_dm_est_req {
172 } __attribute__((packed));
174 struct l1ctl_pm_req {
180 uint16_t band_arfcn_from;
181 uint16_t band_arfcn_to;
184 } __attribute__((packed));
186 /* a single L1CTL_PM response */
187 struct l1ctl_pm_conf {
190 } __attribute__((packed));
192 enum l1ctl_reset_type {
193 L1CTL_RES_T_BOOT, /* only _IND */
197 /* argument to L1CTL_RESET_REQ and L1CTL_RESET_IND */
201 } __attribute__((packed));