/****************************************************************************** * * Copyright (C) 2003-2014 Broadcom Corporation * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at: * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. * ******************************************************************************/ /****************************************************************************** * * This is the main implementation file for the NFA_RW * ******************************************************************************/ #include <string.h> #include "nfa_rw_api.h" #include "nfa_sys.h" #include "nfa_rw_int.h" #include "nfa_dm_int.h" #include "nfa_sys_int.h" /* NFA_RW control block */ tNFA_RW_CB nfa_rw_cb; /***************************************************************************** ** Constants and types *****************************************************************************/ static const tNFA_SYS_REG nfa_rw_sys_reg = { NULL, nfa_rw_handle_event, nfa_rw_sys_disable, NULL }; /* NFA_RW actions */ const tNFA_RW_ACTION nfa_rw_action_tbl[] = { nfa_rw_handle_op_req, /* NFA_RW_OP_REQUEST_EVT */ nfa_rw_activate_ntf, /* NFA_RW_ACTIVATE_NTF_EVT */ nfa_rw_deactivate_ntf, /* NFA_RW_DEACTIVATE_NTF_EVT */ nfa_rw_presence_check_tick, /* NFA_RW_PRESENCE_CHECK_TICK_EVT */ nfa_rw_presence_check_timeout /* NFA_RW_PRESENCE_CHECK_TIMEOUT_EVT*/ }; /***************************************************************************** ** Local function prototypes *****************************************************************************/ #if (BT_TRACE_VERBOSE == TRUE) static char *nfa_rw_evt_2_str (UINT16 event); #endif /******************************************************************************* ** ** Function nfa_rw_init ** ** Description Initialize NFA RW ** ** Returns None ** *******************************************************************************/ void nfa_rw_init (void) { NFA_TRACE_DEBUG0 ("nfa_rw_init ()"); /* initialize control block */ memset (&nfa_rw_cb, 0, sizeof (tNFA_RW_CB)); /* register message handler on NFA SYS */ nfa_sys_register (NFA_ID_RW, &nfa_rw_sys_reg); } /******************************************************************************* ** ** Function nfa_rw_sys_disable ** ** Description Clean up rw sub-system ** ** ** Returns void ** *******************************************************************************/ void nfa_rw_sys_disable (void) { /* Return to idle */ NFC_SetStaticRfCback (NULL); /* Stop presence check timer (if started) */ nfa_rw_stop_presence_check_timer (); /* Free scratch buffer if any */ nfa_rw_free_ndef_rx_buf (); /* Free pending command if any */ if (nfa_rw_cb.p_pending_msg) { GKI_freebuf (nfa_rw_cb.p_pending_msg); nfa_rw_cb.p_pending_msg = NULL; } nfa_sys_deregister (NFA_ID_RW); } /******************************************************************************* ** ** Function nfa_rw_proc_disc_evt ** ** Description Called by nfa_dm to handle ACTIVATED/DEACTIVATED events ** ** Returns void ** *******************************************************************************/ void nfa_rw_proc_disc_evt (tNFA_DM_RF_DISC_EVT event, tNFC_DISCOVER *p_data, BOOLEAN excl_rf_not_active) { tNFA_RW_MSG msg; switch (event) { case NFA_DM_RF_DISC_ACTIVATED_EVT: msg.hdr.event = NFA_RW_ACTIVATE_NTF_EVT; msg.activate_ntf.p_activate_params = &p_data->activate; msg.activate_ntf.excl_rf_not_active = excl_rf_not_active; nfa_rw_handle_event ((BT_HDR *) &msg); break; case NFA_DM_RF_DISC_DEACTIVATED_EVT: msg.hdr.event = NFA_RW_DEACTIVATE_NTF_EVT; nfa_rw_handle_event ((BT_HDR *) &msg); break; default: break; } } /******************************************************************************* ** ** Function nfa_rw_send_raw_frame ** ** Description Called by nfa_dm to send raw frame ** ** Returns tNFA_STATUS ** *******************************************************************************/ tNFA_STATUS nfa_rw_send_raw_frame (BT_HDR *p_data) { tNFA_RW_MSG *p_msg; if ((p_msg = (tNFA_RW_MSG *) GKI_getbuf ((UINT16) sizeof(tNFA_RW_MSG))) != NULL) { p_msg->hdr.event = NFA_RW_OP_REQUEST_EVT; p_msg->op_req.op = NFA_RW_OP_SEND_RAW_FRAME; p_msg->op_req.params.send_raw_frame.p_data = p_data; if (nfa_rw_handle_event ((BT_HDR *) p_msg)) GKI_freebuf (p_msg); return (NFA_STATUS_OK); } return NFA_STATUS_FAILED; } /******************************************************************************* ** ** Function nfa_rw_handle_event ** ** Description nfa rw main event handling function. ** ** Returns TRUE if caller should free p_msg buffer ** *******************************************************************************/ BOOLEAN nfa_rw_handle_event(BT_HDR *p_msg) { UINT16 act_idx; #if (BT_TRACE_VERBOSE == TRUE) NFA_TRACE_EVENT3 ("nfa_rw_handle_event event: %s (0x%02x), flags: %08x", nfa_rw_evt_2_str (p_msg->event), p_msg->event, nfa_rw_cb.flags); #else NFA_TRACE_EVENT2 ("nfa_rw_handle_event event: 0x%x, flags: %08x",p_msg->event, nfa_rw_cb.flags); #endif /* Get NFA_RW sub-event */ if ((act_idx = (p_msg->event & 0x00FF)) < (NFA_RW_MAX_EVT & 0xFF)) { return (*nfa_rw_action_tbl[act_idx]) ( (tNFA_RW_MSG*) p_msg); } else { NFA_TRACE_ERROR1 ("nfa_rw_handle_event: unhandled event 0x%02X", p_msg->event); return TRUE; } } #if (BT_TRACE_VERBOSE == TRUE) /******************************************************************************* ** ** Function nfa_rw_evt_2_str ** ** Description convert nfa_rw evt to string ** *******************************************************************************/ static char *nfa_rw_evt_2_str (UINT16 event) { switch (event) { case NFA_RW_OP_REQUEST_EVT: return "NFA_RW_OP_REQUEST_EVT"; case NFA_RW_ACTIVATE_NTF_EVT: return "NFA_RW_ACTIVATE_NTF_EVT"; case NFA_RW_DEACTIVATE_NTF_EVT: return "NFA_RW_DEACTIVATE_NTF_EVT"; case NFA_RW_PRESENCE_CHECK_TICK_EVT: return "NFA_RW_PRESENCE_CHECK_TICK_EVT"; case NFA_RW_PRESENCE_CHECK_TIMEOUT_EVT: return "NFA_RW_PRESENCE_CHECK_TIMEOUT_EVT"; default: return "Unknown"; } } #endif /* BT_TRACE_VERBOSE */