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nimble/ll: Fix BLE_LL_CONN_INIT_MIN_WIN_OFFSET

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The code which calculates earliest connection event start does not take
BLE_LL_CONN_INIT_MIN_WIN_OFFSET into account, but we still update tx
windows offset in state machine with its value. As a result when this
setting is set to non-zero value we schedule first connection event
earlier than what slave calculates from CONNECT_IND PDU so connection
cannot be established.

X-Original-Commit: cf8ca1b0a6fab4e5d1c579fe37ee2adc4e3a1e07
This commit is contained in:
Andrzej Kaczmarek
2018-02-20 22:32:43 +01:00
parent ea51f6d421
commit c1272bd6dd
1 changed files with 4 additions and 0 deletions
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nimble/controller/src/ble_ll_sched.c
+4
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@@ -402,6 +402,8 @@ ble_ll_sched_master_new(struct ble_ll_conn_sm *connsm,
assert(0);
}
}
earliest_start += MYNEWT_VAL(BLE_LL_CONN_INIT_MIN_WIN_OFFSET) *
BLE_LL_SCHED_32KHZ_TICKS_PER_SLOT;
itvl_t = connsm->conn_itvl_ticks;
/* We have to find a place for this schedule */
@@ -630,6 +632,8 @@ ble_ll_sched_master_new(struct ble_ll_conn_sm *connsm,
assert(0);
}
}
earliest_start += MYNEWT_VAL(BLE_LL_CONN_INIT_MIN_WIN_OFFSET) *
BLE_LL_SCHED_32KHZ_TICKS_PER_SLOT;
earliest_end = earliest_start + dur;
itvl_t = connsm->conn_itvl_ticks;