/**
* Reset the advertising state machine.
*
* Context: Link Layer task
*
*/
void
ble_ll_adv_reset(void)
{
struct ble_ll_adv_sm *advsm;
advsm = &g_ble_ll_adv_sm;
/* Stop advertising state machine */
ble_ll_adv_sm_stop(advsm);
/* re-initialize the advertiser state machine */
ble_ll_adv_init();
}
/**
* Reset the advertising state machine.
*
* Context: Link Layer task
*
*/
void
ble_ll_adv_reset(void)
{
struct ble_ll_adv_sm *advsm;
advsm = &g_ble_ll_adv_sm;
/* Stop advertising state machine */
ble_ll_adv_sm_stop(advsm);
/* Free scan pdu's */
os_mbuf_free_chain(advsm->scan_rsp_pdu);
/* re-initialize the advertiser state machine */
ble_ll_adv_init();
}
/**
* Initialize the Link Layer. Should be called only once
*
* @return int
*/
void
ble_ll_init(void)
{
int rc;
uint8_t features;
struct ble_ll_obj *lldata;
/* Get pointer to global data object */
lldata = &g_ble_ll_data;
/* Set acl pkt size and number */
lldata->ll_num_acl_pkts = MYNEWT_VAL(BLE_ACL_BUF_COUNT);
lldata->ll_acl_pkt_size = MYNEWT_VAL(BLE_ACL_BUF_SIZE);
/* Initialize eventq */
os_eventq_init(&lldata->ll_evq);
/* Initialize the transmit (from host) and receive (from phy) queues */
STAILQ_INIT(&lldata->ll_tx_pkt_q);
STAILQ_INIT(&lldata->ll_rx_pkt_q);
/* Initialize transmit (from host) and receive packet (from phy) event */
lldata->ll_rx_pkt_ev.ev_cb = ble_ll_event_rx_pkt;
lldata->ll_tx_pkt_ev.ev_cb = ble_ll_event_tx_pkt;
lldata->ll_dbuf_overflow_ev.ev_cb = ble_ll_event_dbuf_overflow;
/* Initialize the HW error timer */
os_callout_init(&g_ble_ll_data.ll_hw_err_timer,
&g_ble_ll_data.ll_evq,
ble_ll_hw_err_timer_cb,
NULL);
/* Initialize wait for response timer */
os_cputime_timer_init(&g_ble_ll_data.ll_wfr_timer, ble_ll_wfr_timer_exp,
NULL);
ble_ll_hci_os_event_buf = malloc(
OS_MEMPOOL_BYTES(16, sizeof (struct os_event)));
SYSINIT_PANIC_ASSERT(ble_ll_hci_os_event_buf != NULL);
/* Create memory pool of OS events */
rc = os_mempool_init(&g_ble_ll_hci_ev_pool, 16,
sizeof (struct os_event), ble_ll_hci_os_event_buf,
"g_ble_ll_hci_ev_pool");
SYSINIT_PANIC_ASSERT(rc == 0);
/* Initialize LL HCI */
ble_ll_hci_init();
/* Init the scheduler */
ble_ll_sched_init();
/* Initialize advertiser */
ble_ll_adv_init();
/* Initialize a scanner */
ble_ll_scan_init();
/* Initialize the connection module */
ble_ll_conn_module_init();
/* Set the supported features. NOTE: we always support extended reject. */
features = BLE_LL_FEAT_EXTENDED_REJ;
#if (MYNEWT_VAL(BLE_LL_CFG_FEAT_DATA_LEN_EXT) == 1)
features |= BLE_LL_FEAT_DATA_LEN_EXT;
#endif
#if (MYNEWT_VAL(BLE_LL_CFG_FEAT_CONN_PARAM_REQ) == 1)
features |= BLE_LL_FEAT_CONN_PARM_REQ;
#endif
#if (MYNEWT_VAL(BLE_LL_CFG_FEAT_SLAVE_INIT_FEAT_XCHG) == 1)
features |= BLE_LL_FEAT_SLAVE_INIT;
#endif
#if (MYNEWT_VAL(BLE_LL_CFG_FEAT_LE_ENCRYPTION) == 1)
features |= BLE_LL_FEAT_LE_ENCRYPTION;
#endif
#if (MYNEWT_VAL(BLE_LL_CFG_FEAT_LL_PRIVACY) == 1)
features |= (BLE_LL_FEAT_LL_PRIVACY | BLE_LL_FEAT_EXT_SCAN_FILT);
ble_ll_resolv_init();
#endif
#if (MYNEWT_VAL(BLE_LL_CFG_FEAT_LE_PING) == 1)
features |= BLE_LL_FEAT_LE_PING;
#endif
/* Initialize random number generation */
ble_ll_rand_init();
/* XXX: This really doesn't belong here, as the address probably has not
* been set yet.
*/
ble_ll_seed_prng();
lldata->ll_supp_features = features;
/* Initialize the LL task */
os_task_init(&g_ble_ll_task, "ble_ll", ble_ll_task, NULL,
MYNEWT_VAL(BLE_LL_PRIO), OS_WAIT_FOREVER, g_ble_ll_stack,
BLE_LL_STACK_SIZE);
rc = stats_init_and_reg(STATS_HDR(ble_ll_stats),
STATS_SIZE_INIT_PARMS(ble_ll_stats, STATS_SIZE_32),
STATS_NAME_INIT_PARMS(ble_ll_stats),
"ble_ll");
SYSINIT_PANIC_ASSERT(rc == 0);
ble_hci_trans_cfg_ll(ble_ll_hci_cmd_rx, NULL, ble_ll_hci_acl_rx, NULL);
}
