1 /****************************************************************************** 2 * 3 * Copyright (C) 2010-2014 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 system manager. 22 * 23 ******************************************************************************/ 24 #include <string.h> 25 #include "nfa_api.h" 26 #include "nfa_dm_int.h" 27 #include "nfa_sys.h" 28 #include "nfa_sys_int.h" 29 #include "nfa_sys_ptim.h" 30 31 /* protocol timer update period, in milliseconds */ 32 #ifndef NFA_SYS_TIMER_PERIOD 33 #define NFA_SYS_TIMER_PERIOD 10 34 #endif 35 36 /* system manager control block definition */ 37 tNFA_SYS_CB nfa_sys_cb = { 38 0, 39 }; /* nfa_sys control block. statically initialize 'flags' field to 0 */ 40 41 /******************************************************************************* 42 ** 43 ** Function nfa_sys_init 44 ** 45 ** Description NFA initialization; called from task initialization. 46 ** 47 ** 48 ** Returns void 49 ** 50 *******************************************************************************/ 51 void nfa_sys_init(void) { 52 memset(&nfa_sys_cb, 0, sizeof(tNFA_SYS_CB)); 53 nfa_sys_cb.flags |= NFA_SYS_FL_INITIALIZED; 54 nfa_sys_ptim_init(&nfa_sys_cb.ptim_cb, NFA_SYS_TIMER_PERIOD, 55 p_nfa_sys_cfg->timer); 56 nfa_sys_cb.trace_level = p_nfa_sys_cfg->trace_level; 57 } 58 59 /******************************************************************************* 60 ** 61 ** Function nfa_sys_event 62 ** 63 ** Description BTA event handler; called from task event handler. 64 ** 65 ** 66 ** Returns void 67 ** 68 *******************************************************************************/ 69 void nfa_sys_event(NFC_HDR* p_msg) { 70 uint8_t id; 71 bool freebuf = true; 72 73 NFA_TRACE_EVENT1("NFA got event 0x%04X", p_msg->event); 74 75 /* get subsystem id from event */ 76 id = (uint8_t)(p_msg->event >> 8); 77 78 /* verify id and call subsystem event handler */ 79 if ((id < NFA_ID_MAX) && (nfa_sys_cb.is_reg[id])) { 80 freebuf = (*nfa_sys_cb.reg[id]->evt_hdlr)(p_msg); 81 } else { 82 NFA_TRACE_WARNING1("NFA got unregistered event id %d", id); 83 } 84 85 if (freebuf) { 86 GKI_freebuf(p_msg); 87 } 88 } 89 90 /******************************************************************************* 91 ** 92 ** Function nfa_sys_timer_update 93 ** 94 ** Description Update the BTA timer list and handle expired timers. 95 ** 96 ** Returns void 97 ** 98 *******************************************************************************/ 99 void nfa_sys_timer_update(void) { 100 if (!nfa_sys_cb.timers_disabled) { 101 nfa_sys_ptim_timer_update(&nfa_sys_cb.ptim_cb); 102 } 103 } 104 105 /******************************************************************************* 106 ** 107 ** Function nfa_sys_register 108 ** 109 ** Description Called by other BTA subsystems to register their event 110 ** handler. 111 ** 112 ** 113 ** Returns void 114 ** 115 *******************************************************************************/ 116 void nfa_sys_register(uint8_t id, const tNFA_SYS_REG* p_reg) { 117 nfa_sys_cb.reg[id] = (tNFA_SYS_REG*)p_reg; 118 nfa_sys_cb.is_reg[id] = true; 119 120 if ((id != NFA_ID_DM) && (id != NFA_ID_SYS)) 121 nfa_sys_cb.enable_cplt_mask |= (0x0001 << id); 122 123 if (id != NFA_ID_SYS) { 124 if (p_reg->proc_nfcc_pwr_mode) 125 nfa_sys_cb.proc_nfcc_pwr_mode_cplt_mask |= (0x0001 << id); 126 } 127 128 NFA_TRACE_DEBUG2("nfa_sys_register () id=%i, enable_cplt_mask=0x%x", id, 129 nfa_sys_cb.enable_cplt_mask); 130 } 131 132 /******************************************************************************* 133 ** 134 ** Function nfa_sys_check_disabled 135 ** 136 ** Description If all subsystems above DM have been disabled, then 137 ** disable DM. Called during NFA shutdown 138 ** 139 ** Returns void 140 ** 141 *******************************************************************************/ 142 void nfa_sys_check_disabled(void) { 143 uint8_t id; 144 uint8_t done = true; 145 146 /* Check if all subsystems above DM have been disabled. */ 147 for (id = (NFA_ID_DM + 1); id < NFA_ID_MAX; id++) { 148 if (nfa_sys_cb.is_reg[id]) { 149 /* as long as one subsystem is not done */ 150 done = false; 151 break; 152 } 153 } 154 155 /* All subsystems disabled. disable DM */ 156 if ((done) && (nfa_sys_cb.is_reg[NFA_ID_DM])) { 157 (*nfa_sys_cb.reg[NFA_ID_DM]->disable)(); 158 } 159 } 160 161 /******************************************************************************* 162 ** 163 ** Function nfa_sys_deregister 164 ** 165 ** Description Called by other BTA subsystems to de-register 166 ** handler. 167 ** 168 ** 169 ** Returns void 170 ** 171 *******************************************************************************/ 172 void nfa_sys_deregister(uint8_t id) { 173 NFA_TRACE_DEBUG1("nfa_sys: deregistering subsystem %i", id); 174 175 nfa_sys_cb.is_reg[id] = false; 176 177 /* If not deregistering DM, then check if any other subsystems above DM are 178 * still */ 179 /* registered. */ 180 if (id != NFA_ID_DM) { 181 /* If all subsystems above NFA_DM have been disabled, then okay to disable 182 * DM */ 183 nfa_sys_check_disabled(); 184 } else { 185 /* DM (the final sub-system) is deregistering. Clear pending timer events in 186 * nfa_sys. */ 187 nfa_sys_ptim_init(&nfa_sys_cb.ptim_cb, NFA_SYS_TIMER_PERIOD, 188 p_nfa_sys_cfg->timer); 189 } 190 } 191 192 /******************************************************************************* 193 ** 194 ** Function nfa_sys_is_register 195 ** 196 ** Description Called by other BTA subsystems to get registeration 197 ** status. 198 ** 199 ** 200 ** Returns void 201 ** 202 *******************************************************************************/ 203 bool nfa_sys_is_register(uint8_t id) { return nfa_sys_cb.is_reg[id]; } 204 205 /******************************************************************************* 206 ** 207 ** Function nfa_sys_is_graceful_disable 208 ** 209 ** Description Called by other BTA subsystems to get disable 210 ** parameter. 211 ** 212 ** 213 ** Returns void 214 ** 215 *******************************************************************************/ 216 bool nfa_sys_is_graceful_disable(void) { return nfa_sys_cb.graceful_disable; } 217 218 /******************************************************************************* 219 ** 220 ** Function nfa_sys_enable_subsystems 221 ** 222 ** Description Call on NFA Start up 223 ** 224 ** Returns void 225 ** 226 *******************************************************************************/ 227 void nfa_sys_enable_subsystems(void) { 228 uint8_t id; 229 230 NFA_TRACE_DEBUG0("nfa_sys: enabling subsystems"); 231 232 /* Enable all subsystems except SYS */ 233 for (id = NFA_ID_DM; id < NFA_ID_MAX; id++) { 234 if (nfa_sys_cb.is_reg[id]) { 235 if (nfa_sys_cb.reg[id]->enable != NULL) { 236 /* Subsytem has a Disable funciton. Call it now */ 237 (*nfa_sys_cb.reg[id]->enable)(); 238 } else { 239 /* Subsytem does not have a Enable function. Report Enable on behalf of 240 * subsystem */ 241 nfa_sys_cback_notify_enable_complete(id); 242 } 243 } 244 } 245 } 246 247 /******************************************************************************* 248 ** 249 ** Function nfa_sys_disable_subsystems 250 ** 251 ** Description Call on NFA shutdown. Disable all subsystems above NFA_DM 252 ** 253 ** Returns void 254 ** 255 *******************************************************************************/ 256 void nfa_sys_disable_subsystems(bool graceful) { 257 uint8_t id; 258 bool done = true; 259 260 NFA_TRACE_DEBUG1("nfa_sys: disabling subsystems:%d", graceful); 261 nfa_sys_cb.graceful_disable = graceful; 262 263 /* Disable all subsystems above NFA_DM. (NFA_DM and NFA_SYS will be disabled 264 * last) */ 265 for (id = (NFA_ID_DM + 1); id < NFA_ID_MAX; id++) { 266 if (nfa_sys_cb.is_reg[id]) { 267 done = false; 268 if (nfa_sys_cb.reg[id]->disable != NULL) { 269 /* Subsytem has a Disable funciton. Call it now */ 270 (*nfa_sys_cb.reg[id]->disable)(); 271 } else { 272 /* Subsytem does not have a Disable function. Deregister on behalf of 273 * subsystem */ 274 nfa_sys_deregister(id); 275 } 276 } 277 } 278 279 /* If All subsystems disabled. disable DM */ 280 if ((done) && (nfa_sys_cb.is_reg[NFA_ID_DM])) { 281 (*nfa_sys_cb.reg[NFA_ID_DM]->disable)(); 282 } 283 } 284 285 /******************************************************************************* 286 ** 287 ** Function nfa_sys_notify_nfcc_power_mode 288 ** 289 ** Description Call to notify NFCC power mode to NFA sub-modules 290 ** 291 ** Returns void 292 ** 293 *******************************************************************************/ 294 void nfa_sys_notify_nfcc_power_mode(uint8_t nfcc_power_mode) { 295 uint8_t id; 296 297 NFA_TRACE_DEBUG1("nfa_sys: notify NFCC power mode(%d) to subsystems", 298 nfcc_power_mode); 299 300 /* Notify NFCC power state to all subsystems except NFA_SYS */ 301 for (id = NFA_ID_DM; id < NFA_ID_MAX; id++) { 302 if ((nfa_sys_cb.is_reg[id]) && (nfa_sys_cb.reg[id]->proc_nfcc_pwr_mode)) { 303 /* Subsytem has a funciton for processing NFCC power mode. Call it now */ 304 (*nfa_sys_cb.reg[id]->proc_nfcc_pwr_mode)(nfcc_power_mode); 305 } 306 } 307 } 308 309 /******************************************************************************* 310 ** 311 ** Function nfa_sys_sendmsg 312 ** 313 ** Description Send a GKI message to BTA. This function is designed to 314 ** optimize sending of messages to BTA. It is called by BTA 315 ** API functions and call-in functions. 316 ** 317 ** 318 ** Returns void 319 ** 320 *******************************************************************************/ 321 void nfa_sys_sendmsg(void* p_msg) { 322 GKI_send_msg(NFC_TASK, p_nfa_sys_cfg->mbox, p_msg); 323 } 324 325 /******************************************************************************* 326 ** 327 ** Function nfa_sys_start_timer 328 ** 329 ** Description Start a protocol timer for the specified amount 330 ** of time in milliseconds. 331 ** 332 ** Returns void 333 ** 334 *******************************************************************************/ 335 void nfa_sys_start_timer(TIMER_LIST_ENT* p_tle, uint16_t type, 336 int32_t timeout) { 337 nfa_sys_ptim_start_timer(&nfa_sys_cb.ptim_cb, p_tle, type, timeout); 338 } 339 340 /******************************************************************************* 341 ** 342 ** Function nfa_sys_stop_timer 343 ** 344 ** Description Stop a BTA timer. 345 ** 346 ** Returns void 347 ** 348 *******************************************************************************/ 349 void nfa_sys_stop_timer(TIMER_LIST_ENT* p_tle) { 350 nfa_sys_ptim_stop_timer(&nfa_sys_cb.ptim_cb, p_tle); 351 } 352 353 /******************************************************************************* 354 ** 355 ** Function nfa_sys_disable_timers 356 ** 357 ** Description Disable sys timer event handling 358 ** 359 ** Returns void 360 ** 361 *******************************************************************************/ 362 void nfa_sys_disable_timers(void) { nfa_sys_cb.timers_disabled = true; } 363 364 /******************************************************************************* 365 ** 366 ** Function nfa_sys_set_trace_level 367 ** 368 ** Description Set trace level for BTA 369 ** 370 ** Returns void 371 ** 372 *******************************************************************************/ 373 void nfa_sys_set_trace_level(uint8_t level) { nfa_sys_cb.trace_level = level; } 374
