diff options
| author | Harald Welte <laforge@gnumonks.org> | 2010-06-20 18:12:40 +0200 |
|---|---|---|
| committer | Harald Welte <laforge@gnumonks.org> | 2010-06-20 18:13:14 +0200 |
| commit | 64b4a7a58564adfaa205e6213a59b0925b02c825 (patch) | |
| tree | 2f99c5cf7f2320c960e6b79d85e23c9b231368b8 | |
| parent | 17e0a2c07501fce7ed790845c372878fbe0e52bb (diff) | |
[layer1] Add L1CTL_RACH_RESP to confirm that a RACH request was sent
| -rw-r--r-- | include/l1a_l23_interface.h | 1 | ||||
| -rw-r--r-- | src/target/firmware/layer1/prim_rach.c | 23 |
2 files changed, 24 insertions, 0 deletions
diff --git a/include/l1a_l23_interface.h b/include/l1a_l23_interface.h index ead1fd7c..12eaf7ab 100644 --- a/include/l1a_l23_interface.h +++ b/include/l1a_l23_interface.h @@ -35,6 +35,7 @@ #define L1CTL_PM_RESP 10 /* power measurement */ #define L1CTL_ECHO_REQ 11 #define L1CTL_ECHO_RESP 12 +#define L1CTL_RACH_RESP 13 /* * NOTE: struct size. We do add manual padding out of the believe diff --git a/src/target/firmware/layer1/prim_rach.c b/src/target/firmware/layer1/prim_rach.c index 7be3e80b..c3465dad 100644 --- a/src/target/firmware/layer1/prim_rach.c +++ b/src/target/firmware/layer1/prim_rach.c @@ -48,6 +48,10 @@ #include <l1a_l23_interface.h> +struct { + uint32_t fn; + uint16_t band_arfcn; +} last_rach; /* p1: type of operation (0: one NB, 1: one RACH burst, 2: four NB */ static int l1s_tx_rach_cmd(__unused uint8_t p1, __unused uint8_t p2, __unused uint16_t p3) @@ -83,6 +87,12 @@ static int l1s_tx_rach_resp(__unused uint8_t p1, __unused uint8_t burst_id, dsp_api.r_page_used = 1; + /* schedule a confirmation back indicating the GSM time at which + * the RACH burst was transmitted to the BTS */ + last_rach.fn = l1s.current_time.fn - 1; + last_rach.band_arfcn = l1s.serving_cell.arfcn; + l1s_compl_sched(L1_COMPL_FB); + return 0; } @@ -94,6 +104,16 @@ const struct tdma_sched_item rach_sched_set_ul[] = { SCHED_END_SET() }; +/* Asynchronous completion handler for FB detection */ +static void l1a_rach_compl(__unused enum l1_compl c) +{ + struct msgb *msg; + + msg = l1_create_l2_msg(L1CTL_RACH_RESP, last_rach.fn, 0, + last_rach.band_arfcn); + l1_queue_for_l2(msg); +} + /* request a RACH request at the next multiframe T3 = fn51 */ void l1a_rach_req(uint8_t fn51, uint8_t ra) { @@ -106,4 +126,7 @@ void l1a_rach_req(uint8_t fn51, uint8_t ra) fn_sched += fn51; sched_gsmtime(rach_sched_set_ul, fn_sched, 0); l1a_unlock_sync(); + + memset(&last_rach, 0, sizeof(last_rach)); + l1s.completion[L1_COMPL_FB] = &l1a_rach_compl; } |