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freetdm: Its possible to get HW ALARM clear even though we never got the initial alarm. 

Only send out an unblock if block was sent from hw alarm and there are no
         maintenance blocks pending.
This commit is contained in:
Nenad Corbic 2011-10-26 14:57:27 -04:00
parent fd6d18d56c
commit de2836e76a
1 changed files with 19 additions and 0 deletions
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19
libs/freetdm/src/ftmod/ftmod_sangoma_ss7/ftmod_sangoma_ss7_main.c
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@ -1247,6 +1247,25 @@ ftdm_status_t ftdm_sangoma_ss7_process_state_change (ftdm_channel_t * ftdmchan)
if (sngss7_test_ckt_blk_flag(sngss7_info, FLAG_GRP_HW_UNBLK_TX)) {
SS7_DEBUG_CHAN(ftdmchan, "Processing FLAG_GRP_HW_UNBLK_TX flag %s\n", "");
if (sngss7_clear_ckt_blk_flag(sngss7_info, FLAG_GRP_HW_BLOCK_TX) &&
sngss7_clear_ckt_blk_flag(sngss7_info, FLAG_GRP_HW_BLOCK_TX_DN)) {
/* Block was sent out we must send an unblock */
/* Do not send an unblock if we also have Management block
enabled */
if (!sngss7_test_ckt_blk_flag(sngss7_info, ( FLAG_CKT_MN_BLOCK_TX
| FLAG_CKT_MN_BLOCK_TX
| FLAG_GRP_MN_BLOCK_TX
| FLAG_GRP_MN_BLOCK_TX_DN
)
)
) {
ft_to_sngss7_ubl(ftdmchan);
}
}
sngss7_clear_ckt_blk_flag(sngss7_info, FLAG_GRP_HW_BLOCK_TX);
sngss7_clear_ckt_blk_flag(sngss7_info, FLAG_GRP_HW_BLOCK_TX_DN);
sngss7_clear_ckt_blk_flag(sngss7_info, FLAG_GRP_HW_UNBLK_TX);