1 /****************************************************************************** 2 * 3 * Copyright (C) 2003-2014 Broadcom Corporation 4 * 5 * Licensed under the Apache License, Version 2.0 (the "License"); 6 * you may not use this file except in compliance with the License. 7 * You may obtain a copy of the License at: 8 * 9 * http://www.apache.org/licenses/LICENSE-2.0 10 * 11 * Unless required by applicable law or agreed to in writing, software 12 * distributed under the License is distributed on an "AS IS" BASIS, 13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14 * See the License for the specific language governing permissions and 15 * limitations under the License. 16 * 17 ******************************************************************************/ 18 19 20 /****************************************************************************** 21 * 22 * This is the main implementation file for the NFA_RW 23 * 24 ******************************************************************************/ 25 #include <string.h> 26 #include "nfa_rw_api.h" 27 #include "nfa_sys.h" 28 #include "nfa_rw_int.h" 29 #include "nfa_dm_int.h" 30 #include "nfa_sys_int.h" 31 32 /* NFA_RW control block */ 33 tNFA_RW_CB nfa_rw_cb; 34 35 /***************************************************************************** 36 ** Constants and types 37 *****************************************************************************/ 38 static const tNFA_SYS_REG nfa_rw_sys_reg = 39 { 40 NULL, 41 nfa_rw_handle_event, 42 nfa_rw_sys_disable, 43 NULL 44 }; 45 46 /* NFA_RW actions */ 47 const tNFA_RW_ACTION nfa_rw_action_tbl[] = 48 { 49 nfa_rw_handle_op_req, /* NFA_RW_OP_REQUEST_EVT */ 50 nfa_rw_activate_ntf, /* NFA_RW_ACTIVATE_NTF_EVT */ 51 nfa_rw_deactivate_ntf, /* NFA_RW_DEACTIVATE_NTF_EVT */ 52 nfa_rw_presence_check_tick, /* NFA_RW_PRESENCE_CHECK_TICK_EVT */ 53 nfa_rw_presence_check_timeout /* NFA_RW_PRESENCE_CHECK_TIMEOUT_EVT*/ 54 }; 55 56 57 /***************************************************************************** 58 ** Local function prototypes 59 *****************************************************************************/ 60 #if (BT_TRACE_VERBOSE == TRUE) 61 static char *nfa_rw_evt_2_str (UINT16 event); 62 #endif 63 64 /******************************************************************************* 65 ** 66 ** Function nfa_rw_init 67 ** 68 ** Description Initialize NFA RW 69 ** 70 ** Returns None 71 ** 72 *******************************************************************************/ 73 void nfa_rw_init (void) 74 { 75 NFA_TRACE_DEBUG0 ("nfa_rw_init ()"); 76 77 /* initialize control block */ 78 memset (&nfa_rw_cb, 0, sizeof (tNFA_RW_CB)); 79 80 /* register message handler on NFA SYS */ 81 nfa_sys_register (NFA_ID_RW, &nfa_rw_sys_reg); 82 } 83 84 /******************************************************************************* 85 ** 86 ** Function nfa_rw_sys_disable 87 ** 88 ** Description Clean up rw sub-system 89 ** 90 ** 91 ** Returns void 92 ** 93 *******************************************************************************/ 94 void nfa_rw_sys_disable (void) 95 { 96 /* Return to idle */ 97 NFC_SetStaticRfCback (NULL); 98 99 /* Stop presence check timer (if started) */ 100 nfa_rw_stop_presence_check_timer (); 101 102 /* Free scratch buffer if any */ 103 nfa_rw_free_ndef_rx_buf (); 104 105 /* Free pending command if any */ 106 if (nfa_rw_cb.p_pending_msg) 107 { 108 GKI_freebuf (nfa_rw_cb.p_pending_msg); 109 nfa_rw_cb.p_pending_msg = NULL; 110 } 111 112 nfa_sys_deregister (NFA_ID_RW); 113 } 114 115 /******************************************************************************* 116 ** 117 ** Function nfa_rw_proc_disc_evt 118 ** 119 ** Description Called by nfa_dm to handle ACTIVATED/DEACTIVATED events 120 ** 121 ** Returns void 122 ** 123 *******************************************************************************/ 124 void nfa_rw_proc_disc_evt (tNFA_DM_RF_DISC_EVT event, tNFC_DISCOVER *p_data, BOOLEAN excl_rf_not_active) 125 { 126 tNFA_RW_MSG msg; 127 128 switch (event) 129 { 130 case NFA_DM_RF_DISC_ACTIVATED_EVT: 131 msg.hdr.event = NFA_RW_ACTIVATE_NTF_EVT; 132 msg.activate_ntf.p_activate_params = &p_data->activate; 133 msg.activate_ntf.excl_rf_not_active = excl_rf_not_active; 134 135 nfa_rw_handle_event ((BT_HDR *) &msg); 136 break; 137 138 case NFA_DM_RF_DISC_DEACTIVATED_EVT: 139 msg.hdr.event = NFA_RW_DEACTIVATE_NTF_EVT; 140 141 nfa_rw_handle_event ((BT_HDR *) &msg); 142 break; 143 144 default: 145 break; 146 } 147 } 148 149 /******************************************************************************* 150 ** 151 ** Function nfa_rw_send_raw_frame 152 ** 153 ** Description Called by nfa_dm to send raw frame 154 ** 155 ** Returns tNFA_STATUS 156 ** 157 *******************************************************************************/ 158 tNFA_STATUS nfa_rw_send_raw_frame (BT_HDR *p_data) 159 { 160 tNFA_RW_MSG *p_msg; 161 162 if ((p_msg = (tNFA_RW_MSG *) GKI_getbuf ((UINT16) sizeof(tNFA_RW_MSG))) != NULL) 163 { 164 p_msg->hdr.event = NFA_RW_OP_REQUEST_EVT; 165 p_msg->op_req.op = NFA_RW_OP_SEND_RAW_FRAME; 166 167 p_msg->op_req.params.send_raw_frame.p_data = p_data; 168 169 if (nfa_rw_handle_event ((BT_HDR *) p_msg)) 170 GKI_freebuf (p_msg); 171 172 return (NFA_STATUS_OK); 173 } 174 return NFA_STATUS_FAILED; 175 } 176 177 /******************************************************************************* 178 ** 179 ** Function nfa_rw_handle_event 180 ** 181 ** Description nfa rw main event handling function. 182 ** 183 ** Returns TRUE if caller should free p_msg buffer 184 ** 185 *******************************************************************************/ 186 BOOLEAN nfa_rw_handle_event(BT_HDR *p_msg) 187 { 188 UINT16 act_idx; 189 190 #if (BT_TRACE_VERBOSE == TRUE) 191 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); 192 #else 193 NFA_TRACE_EVENT2 ("nfa_rw_handle_event event: 0x%x, flags: %08x",p_msg->event, nfa_rw_cb.flags); 194 #endif 195 196 /* Get NFA_RW sub-event */ 197 if ((act_idx = (p_msg->event & 0x00FF)) < (NFA_RW_MAX_EVT & 0xFF)) 198 { 199 return (*nfa_rw_action_tbl[act_idx]) ( (tNFA_RW_MSG*) p_msg); 200 } 201 else 202 { 203 NFA_TRACE_ERROR1 ("nfa_rw_handle_event: unhandled event 0x%02X", p_msg->event); 204 return TRUE; 205 } 206 } 207 208 209 #if (BT_TRACE_VERBOSE == TRUE) 210 /******************************************************************************* 211 ** 212 ** Function nfa_rw_evt_2_str 213 ** 214 ** Description convert nfa_rw evt to string 215 ** 216 *******************************************************************************/ 217 static char *nfa_rw_evt_2_str (UINT16 event) 218 { 219 switch (event) 220 { 221 case NFA_RW_OP_REQUEST_EVT: 222 return "NFA_RW_OP_REQUEST_EVT"; 223 224 case NFA_RW_ACTIVATE_NTF_EVT: 225 return "NFA_RW_ACTIVATE_NTF_EVT"; 226 227 case NFA_RW_DEACTIVATE_NTF_EVT: 228 return "NFA_RW_DEACTIVATE_NTF_EVT"; 229 230 case NFA_RW_PRESENCE_CHECK_TICK_EVT: 231 return "NFA_RW_PRESENCE_CHECK_TICK_EVT"; 232 233 case NFA_RW_PRESENCE_CHECK_TIMEOUT_EVT: 234 return "NFA_RW_PRESENCE_CHECK_TIMEOUT_EVT"; 235 236 default: 237 return "Unknown"; 238 } 239 } 240 #endif /* BT_TRACE_VERBOSE */ 241
