commit 57bda5037c0798c85388428a6d3a7771e1cc8034
author Shobek Sam Attupurath <sattupurath@nvidia.com> Wed Apr 17 16:08:17 2013 +0530
committer Narayan Reddy <narayanr@nvidia.com> Tue Mar 25 13:06:52 2014 +0530
tree c33cca1917d1634e7411d2fa251fec776d103106
parent 45e9aaca1c4e49f22cc23105aed6c625ad0d1278

Use 0000 as pin key for PORCHE_PAIRING_CONFLICT issue

For PORCHE_PAIRING_CONFLICT issue when there are no other paired devices
available in bluetooth list pairing always fails (as per implementation
in bluedroid stack).
In this case when pin key request is received use 0000 as the pin key
so that pairing is successful.

Bug 67614

Change-Id: I67b2e689cfcc52c93fdda62dd742812698baa0e6

stack/btm/btm_sec.c

diff --git a/stack/btm/btm_sec.c b/stack/btm/btm_sec.c
index 8bcf435..1e15d78 100644
--- a/stack/btm/btm_sec.c
+++ b/stack/btm/btm_sec.c
@@ -4774,6 +4774,10 @@
     tBTM_SEC_DEV_REC *p_dev_rec;
     tBTM_CB          *p_cb = &btm_cb;
 
+#ifdef PORCHE_PAIRING_CONFLICT
+    UINT8 default_pin_code_len = 4;
+    PIN_CODE default_pin_code = {0x30, 0x30, 0x30, 0x30};
+#endif
     BTM_TRACE_EVENT3 ("btm_sec_pin_code_request()  State: %s, BDA:%04x%08x",
                       btm_pair_state_descr(btm_cb.pairing_state),
                       (p_bda[0]<<8)+p_bda[1], (p_bda[2]<<24)+(p_bda[3]<<16)+(p_bda[4]<<8)+p_bda[5] );
@@ -4807,7 +4811,8 @@
             BTM_TRACE_EVENT0 ("btm_sec_pin_code_request from remote dev. for local initiated pairing");
             if(! btm_cb.pin_code_len_saved)
             {
-                btsnd_hcic_pin_code_neg_reply (p_bda);
+                btm_sec_change_pairing_state (BTM_PAIR_STATE_WAIT_AUTH_COMPLETE);
+                btsnd_hcic_pin_code_req_reply (p_bda, default_pin_code_len, default_pin_code);
             }
             else
             {