1 /****************************************************************************** 2 * 3 * Copyright (C) 2003-2013 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 }; 54 55 56 /***************************************************************************** 57 ** Local function prototypes 58 *****************************************************************************/ 59 #if (BT_TRACE_VERBOSE == TRUE) 60 static char *nfa_rw_evt_2_str (UINT16 event); 61 #endif 62 63 /******************************************************************************* 64 ** 65 ** Function nfa_rw_init 66 ** 67 ** Description Initialize NFA RW 68 ** 69 ** Returns None 70 ** 71 *******************************************************************************/ 72 void nfa_rw_init (void) 73 { 74 NFA_TRACE_DEBUG0 ("nfa_rw_init ()"); 75 76 /* initialize control block */ 77 memset (&nfa_rw_cb, 0, sizeof (tNFA_RW_CB)); 78 79 /* register message handler on NFA SYS */ 80 nfa_sys_register (NFA_ID_RW, &nfa_rw_sys_reg); 81 } 82 83 /******************************************************************************* 84 ** 85 ** Function nfa_rw_sys_disable 86 ** 87 ** Description Clean up rw sub-system 88 ** 89 ** 90 ** Returns void 91 ** 92 *******************************************************************************/ 93 void nfa_rw_sys_disable (void) 94 { 95 /* Return to idle */ 96 NFC_SetStaticRfCback (NULL); 97 98 /* Stop presence check timer (if started) */ 99 nfa_rw_stop_presence_check_timer (); 100 101 /* Free scratch buffer if any */ 102 nfa_rw_free_ndef_rx_buf (); 103 104 /* Free pending command if any */ 105 if (nfa_rw_cb.p_pending_msg) 106 { 107 GKI_freebuf (nfa_rw_cb.p_pending_msg); 108 nfa_rw_cb.p_pending_msg = NULL; 109 } 110 111 nfa_sys_deregister (NFA_ID_RW); 112 } 113 114 /******************************************************************************* 115 ** 116 ** Function nfa_rw_proc_disc_evt 117 ** 118 ** Description Called by nfa_dm to handle ACTIVATED/DEACTIVATED events 119 ** 120 ** Returns void 121 ** 122 *******************************************************************************/ 123 void nfa_rw_proc_disc_evt (tNFA_DM_RF_DISC_EVT event, tNFC_DISCOVER *p_data, BOOLEAN excl_rf_not_active) 124 { 125 tNFA_RW_MSG msg; 126 127 switch (event) 128 { 129 case NFA_DM_RF_DISC_ACTIVATED_EVT: 130 msg.hdr.event = NFA_RW_ACTIVATE_NTF_EVT; 131 msg.activate_ntf.p_activate_params = &p_data->activate; 132 msg.activate_ntf.excl_rf_not_active = excl_rf_not_active; 133 134 nfa_rw_handle_event ((BT_HDR *) &msg); 135 break; 136 137 case NFA_DM_RF_DISC_DEACTIVATED_EVT: 138 msg.hdr.event = NFA_RW_DEACTIVATE_NTF_EVT; 139 140 nfa_rw_handle_event ((BT_HDR *) &msg); 141 break; 142 143 default: 144 break; 145 } 146 } 147 148 /******************************************************************************* 149 ** 150 ** Function nfa_rw_send_raw_frame 151 ** 152 ** Description Called by nfa_dm to send raw frame 153 ** 154 ** Returns tNFA_STATUS 155 ** 156 *******************************************************************************/ 157 tNFA_STATUS nfa_rw_send_raw_frame (BT_HDR *p_data) 158 { 159 tNFA_RW_MSG *p_msg; 160 161 if ((p_msg = (tNFA_RW_MSG *) GKI_getbuf ((UINT16) sizeof(tNFA_RW_MSG))) != NULL) 162 { 163 p_msg->hdr.event = NFA_RW_OP_REQUEST_EVT; 164 p_msg->op_req.op = NFA_RW_OP_SEND_RAW_FRAME; 165 166 p_msg->op_req.params.send_raw_frame.p_data = p_data; 167 168 if (nfa_rw_handle_event ((BT_HDR *) p_msg)) 169 GKI_freebuf (p_msg); 170 171 return (NFA_STATUS_OK); 172 } 173 return NFA_STATUS_FAILED; 174 } 175 176 /******************************************************************************* 177 ** 178 ** Function nfa_rw_handle_event 179 ** 180 ** Description nfa rw main event handling function. 181 ** 182 ** Returns TRUE if caller should free p_msg buffer 183 ** 184 *******************************************************************************/ 185 BOOLEAN nfa_rw_handle_event(BT_HDR *p_msg) 186 { 187 UINT16 act_idx; 188 189 #if (BT_TRACE_VERBOSE == TRUE) 190 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); 191 #else 192 NFA_TRACE_EVENT2 ("nfa_rw_handle_event event: 0x%x, flags: %08x",p_msg->event, nfa_rw_cb.flags); 193 #endif 194 195 /* Get NFA_RW sub-event */ 196 if ((act_idx = (p_msg->event & 0x00FF)) < (NFA_RW_MAX_EVT & 0xFF)) 197 { 198 return (*nfa_rw_action_tbl[act_idx]) ( (tNFA_RW_MSG*) p_msg); 199 } 200 else 201 { 202 NFA_TRACE_ERROR1 ("nfa_rw_handle_event: unhandled event 0x%02X", p_msg->event); 203 return TRUE; 204 } 205 } 206 207 208 #if (BT_TRACE_VERBOSE == TRUE) 209 /******************************************************************************* 210 ** 211 ** Function nfa_rw_evt_2_str 212 ** 213 ** Description convert nfa_rw evt to string 214 ** 215 *******************************************************************************/ 216 static char *nfa_rw_evt_2_str (UINT16 event) 217 { 218 switch (event) 219 { 220 case NFA_RW_OP_REQUEST_EVT: 221 return "NFA_RW_OP_REQUEST_EVT"; 222 223 case NFA_RW_ACTIVATE_NTF_EVT: 224 return "NFA_RW_ACTIVATE_NTF_EVT"; 225 226 case NFA_RW_DEACTIVATE_NTF_EVT: 227 return "NFA_RW_DEACTIVATE_NTF_EVT"; 228 229 case NFA_RW_PRESENCE_CHECK_TICK_EVT: 230 return "NFA_RW_PRESENCE_CHECK_TICK_EVT"; 231 232 default: 233 return "Unknown"; 234 } 235 } 236 #endif /* BT_TRACE_VERBOSE */ 237
