1 /****************************************************************************** 2 * 3 * Copyright (C) 2011-2014 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 * This is the main implementation file for the NFA_CE 22 * 23 ******************************************************************************/ 24 #include <string> 25 26 #include <android-base/stringprintf.h> 27 #include <base/logging.h> 28 29 #include "nfa_ce_api.h" 30 #include "nfa_ce_int.h" 31 32 using android::base::StringPrintf; 33 34 extern bool nfc_debug_enabled; 35 36 /* NFA_CE control block */ 37 tNFA_CE_CB nfa_ce_cb; 38 39 /***************************************************************************** 40 ** Constants and types 41 *****************************************************************************/ 42 #define NFA_CE_DEFAULT_ISODEP_DISC_MASK \ 43 (NFA_DM_DISC_MASK_LA_ISO_DEP | NFA_DM_DISC_MASK_LB_ISO_DEP) 44 static void nfa_ce_proc_nfcc_power_mode(uint8_t nfcc_power_mode); 45 46 static const tNFA_SYS_REG nfa_ce_sys_reg = { 47 NULL, nfa_ce_hdl_event, nfa_ce_sys_disable, nfa_ce_proc_nfcc_power_mode}; 48 49 /* NFA_CE actions */ 50 const tNFA_CE_ACTION nfa_ce_action_tbl[] = { 51 nfa_ce_api_cfg_local_tag, /* NFA_CE_API_CFG_LOCAL_TAG_EVT */ 52 nfa_ce_api_reg_listen, /* NFA_CE_API_REG_LISTEN_EVT */ 53 nfa_ce_api_dereg_listen, /* NFA_CE_API_DEREG_LISTEN_EVT */ 54 nfa_ce_api_cfg_isodep_tech, /* NFA_CE_API_CFG_ISODEP_TECH_EVT*/ 55 nfa_ce_activate_ntf, /* NFA_CE_ACTIVATE_NTF_EVT */ 56 nfa_ce_deactivate_ntf, /* NFA_CE_DEACTIVATE_NTF_EVT */ 57 }; 58 #define NFA_CE_ACTION_TBL_SIZE \ 59 (sizeof(nfa_ce_action_tbl) / sizeof(tNFA_CE_ACTION)) 60 61 /***************************************************************************** 62 ** Local function prototypes 63 *****************************************************************************/ 64 static std::string nfa_ce_evt_2_str(uint16_t event); 65 66 /******************************************************************************* 67 ** 68 ** Function nfa_ce_init 69 ** 70 ** Description Initialize NFA CE 71 ** 72 ** Returns None 73 ** 74 *******************************************************************************/ 75 void nfa_ce_init(void) { 76 DLOG_IF(INFO, nfc_debug_enabled) << __func__; 77 78 /* initialize control block */ 79 memset(&nfa_ce_cb, 0, sizeof(tNFA_CE_CB)); 80 81 /* Generate a random NFCID for Type-3 NDEF emulation (Type-3 tag NFCID2 must 82 * start with 02:FE) */ 83 nfa_ce_t3t_generate_rand_nfcid( 84 nfa_ce_cb.listen_info[NFA_CE_LISTEN_INFO_IDX_NDEF].t3t_nfcid2); 85 nfa_ce_cb.listen_info[NFA_CE_LISTEN_INFO_IDX_NDEF].rf_disc_handle = 86 NFA_HANDLE_INVALID; 87 nfa_ce_cb.isodep_disc_mask = NFA_CE_DEFAULT_ISODEP_DISC_MASK; 88 nfa_ce_cb.idx_wild_card = NFA_CE_LISTEN_INFO_IDX_INVALID; 89 90 /* register message handler on NFA SYS */ 91 nfa_sys_register(NFA_ID_CE, &nfa_ce_sys_reg); 92 } 93 94 /******************************************************************************* 95 ** 96 ** Function nfa_ce_sys_disable 97 ** 98 ** Description Clean up ce sub-system 99 ** 100 ** 101 ** Returns void 102 ** 103 *******************************************************************************/ 104 void nfa_ce_sys_disable(void) { 105 tNFA_CE_LISTEN_INFO* p_info; 106 uint8_t xx; 107 108 NFC_SetStaticRfCback(NULL); 109 110 /* Free scratch buf if any */ 111 nfa_ce_free_scratch_buf(); 112 113 /* Delete discovery handles */ 114 for (xx = 0, p_info = nfa_ce_cb.listen_info; xx < NFA_CE_LISTEN_INFO_MAX; 115 xx++, p_info++) { 116 if ((p_info->flags & NFA_CE_LISTEN_INFO_IN_USE) && 117 (p_info->rf_disc_handle != NFA_HANDLE_INVALID)) { 118 nfa_dm_delete_rf_discover(p_info->rf_disc_handle); 119 p_info->rf_disc_handle = NFA_HANDLE_INVALID; 120 } 121 } 122 123 nfa_sys_deregister(NFA_ID_CE); 124 } 125 126 /******************************************************************************* 127 ** 128 ** Function nfa_ce_proc_nfcc_power_mode 129 ** 130 ** Description Processing NFCC power mode changes 131 ** 132 ** Returns None 133 ** 134 *******************************************************************************/ 135 static void nfa_ce_proc_nfcc_power_mode(uint8_t nfcc_power_mode) { 136 tNFA_CE_CB* p_cb = &nfa_ce_cb; 137 uint8_t listen_info_idx; 138 139 DLOG_IF(INFO, nfc_debug_enabled) 140 << StringPrintf("nfcc_power_mode=%d", nfcc_power_mode); 141 142 /* if NFCC power mode is change to full power */ 143 if (nfcc_power_mode == NFA_DM_PWR_MODE_FULL) { 144 nfa_ce_restart_listen_check(); 145 } else { 146 for (listen_info_idx = 0; listen_info_idx < NFA_CE_LISTEN_INFO_IDX_INVALID; 147 listen_info_idx++) { 148 /* add RF discovery to DM only if it is not added yet */ 149 if ((p_cb->listen_info[listen_info_idx].flags & 150 NFA_CE_LISTEN_INFO_IN_USE) && 151 (p_cb->listen_info[listen_info_idx].rf_disc_handle != 152 NFA_HANDLE_INVALID)) { 153 nfa_dm_delete_rf_discover( 154 p_cb->listen_info[listen_info_idx].rf_disc_handle); 155 p_cb->listen_info[listen_info_idx].rf_disc_handle = NFA_HANDLE_INVALID; 156 } 157 } 158 } 159 160 nfa_sys_cback_notify_nfcc_power_mode_proc_complete(NFA_ID_CE); 161 } 162 163 /******************************************************************************* 164 ** 165 ** Function nfa_ce_hdl_event 166 ** 167 ** Description nfa rw main event handling function. 168 ** 169 ** Returns bool 170 ** 171 *******************************************************************************/ 172 bool nfa_ce_hdl_event(NFC_HDR* p_msg) { 173 uint16_t act_idx; 174 bool freebuf = true; 175 176 DLOG_IF(INFO, nfc_debug_enabled) << StringPrintf( 177 "nfa_ce_handle_event event: %s (0x%02x), flags: %08x", 178 nfa_ce_evt_2_str(p_msg->event).c_str(), p_msg->event, nfa_ce_cb.flags); 179 180 /* Get NFA_RW sub-event */ 181 act_idx = (p_msg->event & 0x00FF); 182 if (act_idx < NFA_CE_ACTION_TBL_SIZE) { 183 freebuf = (*nfa_ce_action_tbl[act_idx])((tNFA_CE_MSG*)p_msg); 184 } 185 186 /* if vendor specific event handler is registered */ 187 if (nfa_ce_cb.p_vs_evt_hdlr) { 188 (*nfa_ce_cb.p_vs_evt_hdlr)(p_msg); 189 } 190 191 return freebuf; 192 } 193 194 /******************************************************************************* 195 ** 196 ** Function nfa_ce_evt_2_str 197 ** 198 ** Description convert nfc evt to string 199 ** 200 *******************************************************************************/ 201 static std::string nfa_ce_evt_2_str(uint16_t event) { 202 switch (event) { 203 case NFA_CE_API_CFG_LOCAL_TAG_EVT: 204 return "NFA_CE_API_CFG_LOCAL_TAG_EVT"; 205 case NFA_CE_API_REG_LISTEN_EVT: 206 return "NFA_CE_API_REG_LISTEN_EVT"; 207 case NFA_CE_API_DEREG_LISTEN_EVT: 208 return "NFA_CE_API_DEREG_LISTEN_EVT"; 209 case NFA_CE_API_CFG_ISODEP_TECH_EVT: 210 return "NFA_CE_API_CFG_ISODEP_TECH_EVT"; 211 case NFA_CE_ACTIVATE_NTF_EVT: 212 return "NFA_CE_ACTIVATE_NTF_EVT"; 213 case NFA_CE_DEACTIVATE_NTF_EVT: 214 return "NFA_CE_DEACTIVATE_NTF_EVT"; 215 default: 216 return "Unknown"; 217 } 218 } 219
