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| author | Muhammad Awais Aslam <mawais.aslam985@gmail.com> | 2017-12-19 15:57:20 +0500 |
|---|---|---|
| committer | Vadim Yanitskiy <axilirator@gmail.com> | 2019-05-10 18:18:35 +0700 |
| commit | 8f56258867ed321f8aee59f8cd0fb6a1f36090c9 (patch) | |
| tree | 1816ba7e84b323ff391a94c86fc083553249de9c /src/target/firmware/layer1/sync.c | |
| parent | 0f5f76f65149f82b00ffba40794c59add7bedc88 (diff) | |
WIP/HACK: bsic decoding of neighbour cells in dedicated mode and partially success in synchronized handovermawais/ho
Change-Id: Ib01460b796d2107c4599d327e184eb42340999d2
Diffstat (limited to 'src/target/firmware/layer1/sync.c')
| -rw-r--r-- | src/target/firmware/layer1/sync.c | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/src/target/firmware/layer1/sync.c b/src/target/firmware/layer1/sync.c index 36f42975..6c39f51e 100644 --- a/src/target/firmware/layer1/sync.c +++ b/src/target/firmware/layer1/sync.c @@ -187,6 +187,8 @@ void l1s_reset_hw(void) static int last_timestamp; +static int last_ts; + static inline void check_lost_frame(void) { int diff, timestamp = hwtimer_read(1); @@ -195,6 +197,26 @@ static inline void check_lost_frame(void) last_timestamp += (4*TIMER_TICKS_PER_TDMA); diff = last_timestamp - timestamp; + + /* TS change compensation */ + if (l1s.dedicated.type) { + if (l1s.dedicated.tn < last_ts) { + int ediff = ((8 - last_ts + l1s.dedicated.tn) * TIMER_TICKS_PER_TDMA) >> 3; + printf("TS Chg back: %d -> %d | %d %d\n", + last_ts, l1s.dedicated.tn, diff, ediff); + + // if (((ediff - 2) < diff) && ((ediff + 2) > diff)) { + puts("ADV !\n"); + l1s.current_time = l1s.next_time; + l1s_time_inc(&l1s.next_time, 1); + // } + } else if (l1s.dedicated.tn > last_ts) + printf("TS Chg forth: %d -> %d | %d\n", + last_ts, l1s.dedicated.tn, diff); + last_ts = l1s.dedicated.tn; + } +// } else +// last_ts = 0; /* allow for a bit of jitter */ if (diff < TIMER_TICKS_PER_TDMA - TIMER_TICK_JITTER || @@ -367,6 +389,7 @@ void l1s_reset(void) /* Leave dedicated mode */ l1s.dedicated.type = GSM_DCHAN_NONE; + last_ts = 0; /* reset scheduler and hardware */ sched_gsmtime_reset(); @@ -382,10 +405,20 @@ void l1s_init(void) { unsigned int i; + for (i = 0; i < 64; i++) { + l1s.tpu_offsets_arfcn[i] = 0; + l1s.tpu_offsets[i] = 0; + l1s.nb_freq_diff[i] = 0; + l1s.nb_sb_freq_diff[i] = 0; + l1s.nb_sb_snr[i] = 0; + l1s.nb_frame_diff[i] = 0; + } + for (i = 0; i < ARRAY_SIZE(l1s.tx_queue); i++) INIT_LLIST_HEAD(&l1s.tx_queue[i]); l1s.tx_meas = NULL; + sched_gsmtime_init(); /* register FRAME interrupt as FIQ so it can interrupt normal IRQs */ |