ble host - major changes.

These changes are detailed in this thread on the mynewt dev list:
http://mail-archives.apache.org/mod_mbox/incubator-mynewt-dev/201604.mbox/%3C20160417225734.GB8991%40iori.nightmare-heaven.no-ip.biz%3E

Here is a summary of the changes:

1. All HCI command/acknowledgement exchanges are blocking.

    * FSM machinery goes away; controller response is indicated in the
      return code of the HCI send function.
    * Nearly all HCI failures are indicated to the application
      immediately, so there is no need for lots of mutexes and temporary
      copies of data structures.
    * API is simplified; operation results are indicated via a simple
      function return code.

2. The Nimble host is "taskless"

the Nimble host is now a "flat" library that runs in an application
task.  When the application initializes the host, it indicates which OS
event queue should be used for host-related events.  Host operations are
captured in OS_EVENT_TIMER events that the application task would need
to handle generically, as it most likely already does.

1 files changed, 3 insertions, 9 deletions

diff --git a/net/nimble/host/src/test/ble_l2cap_test.c b/net/nimble/host/src/test/ble_l2cap_test.c
index c9e116c5..9cde6421 100644
--- a/net/nimble/host/src/test/ble_l2cap_test.c
+++ b/net/nimble/host/src/test/ble_l2cap_test.c
@@ -471,10 +471,6 @@ ble_l2cap_test_util_peer_updates(int accept)
     ble_l2cap_test_util_verify_tx_update_rsp(1, !accept);
 
     if (accept) {
-        /* Ensure update request gets sent. */
-        ble_gattc_wakeup();
-        ble_hci_sched_wakeup();
-
         params.itvl_min = 0x200;
         params.itvl_max = 0x300;
         params.latency = 0;
@@ -574,13 +570,11 @@ TEST_CASE(ble_l2cap_test_case_sig_update_init_fail_master)
     params.timeout_multiplier = 0x100;
     rc = ble_l2cap_sig_update(conn->bhc_handle, &params,
                               ble_l2cap_test_util_update_cb, NULL);
-    TEST_ASSERT_FATAL(rc == 0);
+    TEST_ASSERT_FATAL(rc == BLE_HS_EINVAL);
 
+    /* Ensure callback never called. */
     ble_hs_test_util_tx_all();
-
-    /* Ensure callback indicates failure. */
-    TEST_ASSERT(ble_l2cap_test_update_status == BLE_HS_EINVAL);
-    TEST_ASSERT(ble_l2cap_test_update_arg == NULL);
+    TEST_ASSERT(ble_l2cap_test_update_status == -1);
 }
 
 TEST_CASE(ble_l2cap_test_case_sig_update_init_fail_bad_id)