The Android Open Source Project | e9df6ba | 2012-12-13 14:55:37 -0800 | [diff] [blame] | 1 | /****************************************************************************** |
| 2 | * |
| 3 | * Copyright (C) 1999-2012 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 | #include "gki_int.h" |
| 19 | #include <stdio.h> |
| 20 | |
| 21 | #if (GKI_NUM_TOTAL_BUF_POOLS > 16) |
| 22 | #error Number of pools out of range (16 Max)! |
| 23 | #endif |
| 24 | |
| 25 | #if (!defined(BTU_STACK_LITE_ENABLED) || BTU_STACK_LITE_ENABLED == FALSE) |
| 26 | static void gki_add_to_pool_list(UINT8 pool_id); |
| 27 | static void gki_remove_from_pool_list(UINT8 pool_id); |
| 28 | #endif /* BTU_STACK_LITE_ENABLED == FALSE */ |
| 29 | |
| 30 | #if GKI_BUFFER_DEBUG |
| 31 | #define LOG_TAG "GKI_DEBUG" |
| 32 | #define LOGD(format, ...) LogMsg (TRACE_CTRL_GENERAL | TRACE_LAYER_GKI | TRACE_ORG_GKI | TRACE_TYPE_GENERIC, format, ## __VA_ARGS__) |
| 33 | #endif |
| 34 | /******************************************************************************* |
| 35 | ** |
| 36 | ** Function gki_init_free_queue |
| 37 | ** |
| 38 | ** Description Internal function called at startup to initialize a free |
| 39 | ** queue. It is called once for each free queue. |
| 40 | ** |
| 41 | ** Returns void |
| 42 | ** |
| 43 | *******************************************************************************/ |
| 44 | static void gki_init_free_queue (UINT8 id, UINT16 size, UINT16 total, void *p_mem) |
| 45 | { |
| 46 | UINT16 i; |
| 47 | UINT16 act_size; |
| 48 | BUFFER_HDR_T *hdr; |
| 49 | BUFFER_HDR_T *hdr1 = NULL; |
| 50 | UINT32 *magic; |
| 51 | INT32 tempsize = size; |
| 52 | tGKI_COM_CB *p_cb = &gki_cb.com; |
| 53 | |
| 54 | /* Ensure an even number of longwords */ |
| 55 | tempsize = (INT32)ALIGN_POOL(size); |
| 56 | act_size = (UINT16)(tempsize + BUFFER_PADDING_SIZE); |
| 57 | |
| 58 | /* Remember pool start and end addresses */ |
| 59 | if(p_mem) |
| 60 | { |
| 61 | p_cb->pool_start[id] = (UINT8 *)p_mem; |
| 62 | p_cb->pool_end[id] = (UINT8 *)p_mem + (act_size * total); |
| 63 | } |
| 64 | |
| 65 | p_cb->pool_size[id] = act_size; |
| 66 | |
| 67 | p_cb->freeq[id].size = (UINT16) tempsize; |
| 68 | p_cb->freeq[id].total = total; |
| 69 | p_cb->freeq[id].cur_cnt = 0; |
| 70 | p_cb->freeq[id].max_cnt = 0; |
| 71 | |
| 72 | #if GKI_BUFFER_DEBUG |
| 73 | LOGD("gki_init_free_queue() init pool=%d, size=%d (aligned=%d) total=%d start=%p", id, size, tempsize, total, p_mem); |
| 74 | #endif |
| 75 | |
| 76 | /* Initialize index table */ |
| 77 | if(p_mem) |
| 78 | { |
| 79 | hdr = (BUFFER_HDR_T *)p_mem; |
| 80 | p_cb->freeq[id].p_first = hdr; |
| 81 | for (i = 0; i < total; i++) |
| 82 | { |
| 83 | hdr->task_id = GKI_INVALID_TASK; |
| 84 | hdr->q_id = id; |
| 85 | hdr->status = BUF_STATUS_FREE; |
| 86 | magic = (UINT32 *)((UINT8 *)hdr + BUFFER_HDR_SIZE + tempsize); |
| 87 | *magic = MAGIC_NO; |
| 88 | hdr1 = hdr; |
| 89 | hdr = (BUFFER_HDR_T *)((UINT8 *)hdr + act_size); |
| 90 | hdr1->p_next = hdr; |
| 91 | } |
| 92 | hdr1->p_next = NULL; |
| 93 | p_cb->freeq[id].p_last = hdr1; |
| 94 | } |
| 95 | return; |
| 96 | } |
| 97 | |
| 98 | #ifdef GKI_USE_DEFERED_ALLOC_BUF_POOLS |
| 99 | static BOOLEAN gki_alloc_free_queue(UINT8 id) |
| 100 | { |
| 101 | FREE_QUEUE_T *Q; |
| 102 | tGKI_COM_CB *p_cb = &gki_cb.com; |
| 103 | printf("\ngki_alloc_free_queue in, id:%d \n", id); |
| 104 | |
| 105 | Q = &p_cb->freeq[p_cb->pool_list[id]]; |
| 106 | |
| 107 | if(Q->p_first == 0) |
| 108 | { |
| 109 | void* p_mem = GKI_os_malloc((Q->size + BUFFER_PADDING_SIZE) * Q->total); |
| 110 | if(p_mem) |
| 111 | { |
| 112 | //re-initialize the queue with allocated memory |
| 113 | printf("\ngki_alloc_free_queue calling gki_init_free_queue, id:%d size:%d, totol:%d\n", id, Q->size, Q->total); |
| 114 | gki_init_free_queue(id, Q->size, Q->total, p_mem); |
| 115 | printf("\ngki_alloc_free_queue ret OK, id:%d size:%d, totol:%d\n", id, Q->size, Q->total); |
| 116 | return TRUE; |
| 117 | } |
| 118 | GKI_exception (GKI_ERROR_BUF_SIZE_TOOBIG, "gki_alloc_free_queue: Not enough memory"); |
| 119 | } |
| 120 | printf("\ngki_alloc_free_queue out failed, id:%d\n", id); |
| 121 | return FALSE; |
| 122 | } |
| 123 | #endif |
| 124 | |
| 125 | /******************************************************************************* |
| 126 | ** |
| 127 | ** Function gki_buffer_init |
| 128 | ** |
| 129 | ** Description Called once internally by GKI at startup to initialize all |
| 130 | ** buffers and free buffer pools. |
| 131 | ** |
| 132 | ** Returns void |
| 133 | ** |
| 134 | *******************************************************************************/ |
| 135 | void gki_buffer_init(void) |
| 136 | { |
| 137 | UINT8 i, tt, mb; |
| 138 | tGKI_COM_CB *p_cb = &gki_cb.com; |
| 139 | |
| 140 | /* Initialize mailboxes */ |
| 141 | for (tt = 0; tt < GKI_MAX_TASKS; tt++) |
| 142 | { |
| 143 | for (mb = 0; mb < NUM_TASK_MBOX; mb++) |
| 144 | { |
| 145 | p_cb->OSTaskQFirst[tt][mb] = NULL; |
| 146 | p_cb->OSTaskQLast [tt][mb] = NULL; |
| 147 | } |
| 148 | } |
| 149 | |
| 150 | for (tt = 0; tt < GKI_NUM_TOTAL_BUF_POOLS; tt++) |
| 151 | { |
| 152 | p_cb->pool_start[tt] = NULL; |
| 153 | p_cb->pool_end[tt] = NULL; |
| 154 | p_cb->pool_size[tt] = 0; |
| 155 | |
| 156 | p_cb->freeq[tt].p_first = 0; |
| 157 | p_cb->freeq[tt].p_last = 0; |
| 158 | p_cb->freeq[tt].size = 0; |
| 159 | p_cb->freeq[tt].total = 0; |
| 160 | p_cb->freeq[tt].cur_cnt = 0; |
| 161 | p_cb->freeq[tt].max_cnt = 0; |
| 162 | } |
| 163 | |
| 164 | /* Use default from target.h */ |
| 165 | p_cb->pool_access_mask = GKI_DEF_BUFPOOL_PERM_MASK; |
| 166 | |
| 167 | #if (!defined GKI_USE_DEFERED_ALLOC_BUF_POOLS && (GKI_USE_DYNAMIC_BUFFERS == TRUE)) |
| 168 | |
| 169 | #if (GKI_NUM_FIXED_BUF_POOLS > 0) |
| 170 | p_cb->bufpool0 = (UINT8 *)GKI_os_malloc ((GKI_BUF0_SIZE + BUFFER_PADDING_SIZE) * GKI_BUF0_MAX); |
| 171 | #endif |
| 172 | |
| 173 | #if (GKI_NUM_FIXED_BUF_POOLS > 1) |
| 174 | p_cb->bufpool1 = (UINT8 *)GKI_os_malloc ((GKI_BUF1_SIZE + BUFFER_PADDING_SIZE) * GKI_BUF1_MAX); |
| 175 | #endif |
| 176 | |
| 177 | #if (GKI_NUM_FIXED_BUF_POOLS > 2) |
| 178 | p_cb->bufpool2 = (UINT8 *)GKI_os_malloc ((GKI_BUF2_SIZE + BUFFER_PADDING_SIZE) * GKI_BUF2_MAX); |
| 179 | #endif |
| 180 | |
| 181 | #if (GKI_NUM_FIXED_BUF_POOLS > 3) |
| 182 | p_cb->bufpool3 = (UINT8 *)GKI_os_malloc ((GKI_BUF3_SIZE + BUFFER_PADDING_SIZE) * GKI_BUF3_MAX); |
| 183 | #endif |
| 184 | |
| 185 | #if (GKI_NUM_FIXED_BUF_POOLS > 4) |
| 186 | p_cb->bufpool4 = (UINT8 *)GKI_os_malloc ((GKI_BUF4_SIZE + BUFFER_PADDING_SIZE) * GKI_BUF4_MAX); |
| 187 | #endif |
| 188 | |
| 189 | #if (GKI_NUM_FIXED_BUF_POOLS > 5) |
| 190 | p_cb->bufpool5 = (UINT8 *)GKI_os_malloc ((GKI_BUF5_SIZE + BUFFER_PADDING_SIZE) * GKI_BUF5_MAX); |
| 191 | #endif |
| 192 | |
| 193 | #if (GKI_NUM_FIXED_BUF_POOLS > 6) |
| 194 | p_cb->bufpool6 = (UINT8 *)GKI_os_malloc ((GKI_BUF6_SIZE + BUFFER_PADDING_SIZE) * GKI_BUF6_MAX); |
| 195 | #endif |
| 196 | |
| 197 | #if (GKI_NUM_FIXED_BUF_POOLS > 7) |
| 198 | p_cb->bufpool7 = (UINT8 *)GKI_os_malloc ((GKI_BUF7_SIZE + BUFFER_PADDING_SIZE) * GKI_BUF7_MAX); |
| 199 | #endif |
| 200 | |
| 201 | #if (GKI_NUM_FIXED_BUF_POOLS > 8) |
| 202 | p_cb->bufpool8 = (UINT8 *)GKI_os_malloc ((GKI_BUF8_SIZE + BUFFER_PADDING_SIZE) * GKI_BUF8_MAX); |
| 203 | #endif |
| 204 | |
| 205 | #if (GKI_NUM_FIXED_BUF_POOLS > 9) |
| 206 | p_cb->bufpool9 = (UINT8 *)GKI_os_malloc ((GKI_BUF9_SIZE + BUFFER_PADDING_SIZE) * GKI_BUF9_MAX); |
| 207 | #endif |
| 208 | |
| 209 | #if (GKI_NUM_FIXED_BUF_POOLS > 10) |
| 210 | p_cb->bufpool10 = (UINT8 *)GKI_os_malloc ((GKI_BUF10_SIZE + BUFFER_PADDING_SIZE) * GKI_BUF10_MAX); |
| 211 | #endif |
| 212 | |
| 213 | #if (GKI_NUM_FIXED_BUF_POOLS > 11) |
| 214 | p_cb->bufpool11 = (UINT8 *)GKI_os_malloc ((GKI_BUF11_SIZE + BUFFER_PADDING_SIZE) * GKI_BUF11_MAX); |
| 215 | #endif |
| 216 | |
| 217 | #if (GKI_NUM_FIXED_BUF_POOLS > 12) |
| 218 | p_cb->bufpool12 = (UINT8 *)GKI_os_malloc ((GKI_BUF12_SIZE + BUFFER_PADDING_SIZE) * GKI_BUF12_MAX); |
| 219 | #endif |
| 220 | |
| 221 | #if (GKI_NUM_FIXED_BUF_POOLS > 13) |
| 222 | p_cb->bufpool13 = (UINT8 *)GKI_os_malloc ((GKI_BUF13_SIZE + BUFFER_PADDING_SIZE) * GKI_BUF13_MAX); |
| 223 | #endif |
| 224 | |
| 225 | #if (GKI_NUM_FIXED_BUF_POOLS > 14) |
| 226 | p_cb->bufpool14 = (UINT8 *)GKI_os_malloc ((GKI_BUF14_SIZE + BUFFER_PADDING_SIZE) * GKI_BUF14_MAX); |
| 227 | #endif |
| 228 | |
| 229 | #if (GKI_NUM_FIXED_BUF_POOLS > 15) |
| 230 | p_cb->bufpool15 = (UINT8 *)GKI_os_malloc ((GKI_BUF15_SIZE + BUFFER_PADDING_SIZE) * GKI_BUF15_MAX); |
| 231 | #endif |
| 232 | |
| 233 | #endif |
| 234 | |
| 235 | |
| 236 | #if (GKI_NUM_FIXED_BUF_POOLS > 0) |
| 237 | gki_init_free_queue(0, GKI_BUF0_SIZE, GKI_BUF0_MAX, p_cb->bufpool0); |
| 238 | #endif |
| 239 | |
| 240 | #if (GKI_NUM_FIXED_BUF_POOLS > 1) |
| 241 | gki_init_free_queue(1, GKI_BUF1_SIZE, GKI_BUF1_MAX, p_cb->bufpool1); |
| 242 | #endif |
| 243 | |
| 244 | #if (GKI_NUM_FIXED_BUF_POOLS > 2) |
| 245 | gki_init_free_queue(2, GKI_BUF2_SIZE, GKI_BUF2_MAX, p_cb->bufpool2); |
| 246 | #endif |
| 247 | |
| 248 | #if (GKI_NUM_FIXED_BUF_POOLS > 3) |
| 249 | gki_init_free_queue(3, GKI_BUF3_SIZE, GKI_BUF3_MAX, p_cb->bufpool3); |
| 250 | #endif |
| 251 | |
| 252 | #if (GKI_NUM_FIXED_BUF_POOLS > 4) |
| 253 | gki_init_free_queue(4, GKI_BUF4_SIZE, GKI_BUF4_MAX, p_cb->bufpool4); |
| 254 | #endif |
| 255 | |
| 256 | #if (GKI_NUM_FIXED_BUF_POOLS > 5) |
| 257 | gki_init_free_queue(5, GKI_BUF5_SIZE, GKI_BUF5_MAX, p_cb->bufpool5); |
| 258 | #endif |
| 259 | |
| 260 | #if (GKI_NUM_FIXED_BUF_POOLS > 6) |
| 261 | gki_init_free_queue(6, GKI_BUF6_SIZE, GKI_BUF6_MAX, p_cb->bufpool6); |
| 262 | #endif |
| 263 | |
| 264 | #if (GKI_NUM_FIXED_BUF_POOLS > 7) |
| 265 | gki_init_free_queue(7, GKI_BUF7_SIZE, GKI_BUF7_MAX, p_cb->bufpool7); |
| 266 | #endif |
| 267 | |
| 268 | #if (GKI_NUM_FIXED_BUF_POOLS > 8) |
| 269 | gki_init_free_queue(8, GKI_BUF8_SIZE, GKI_BUF8_MAX, p_cb->bufpool8); |
| 270 | #endif |
| 271 | |
| 272 | #if (GKI_NUM_FIXED_BUF_POOLS > 9) |
| 273 | gki_init_free_queue(9, GKI_BUF9_SIZE, GKI_BUF9_MAX, p_cb->bufpool9); |
| 274 | #endif |
| 275 | |
| 276 | #if (GKI_NUM_FIXED_BUF_POOLS > 10) |
| 277 | gki_init_free_queue(10, GKI_BUF10_SIZE, GKI_BUF10_MAX, p_cb->bufpool10); |
| 278 | #endif |
| 279 | |
| 280 | #if (GKI_NUM_FIXED_BUF_POOLS > 11) |
| 281 | gki_init_free_queue(11, GKI_BUF11_SIZE, GKI_BUF11_MAX, p_cb->bufpool11); |
| 282 | #endif |
| 283 | |
| 284 | #if (GKI_NUM_FIXED_BUF_POOLS > 12) |
| 285 | gki_init_free_queue(12, GKI_BUF12_SIZE, GKI_BUF12_MAX, p_cb->bufpool12); |
| 286 | #endif |
| 287 | |
| 288 | #if (GKI_NUM_FIXED_BUF_POOLS > 13) |
| 289 | gki_init_free_queue(13, GKI_BUF13_SIZE, GKI_BUF13_MAX, p_cb->bufpool13); |
| 290 | #endif |
| 291 | |
| 292 | #if (GKI_NUM_FIXED_BUF_POOLS > 14) |
| 293 | gki_init_free_queue(14, GKI_BUF14_SIZE, GKI_BUF14_MAX, p_cb->bufpool14); |
| 294 | #endif |
| 295 | |
| 296 | #if (GKI_NUM_FIXED_BUF_POOLS > 15) |
| 297 | gki_init_free_queue(15, GKI_BUF15_SIZE, GKI_BUF15_MAX, p_cb->bufpool15); |
| 298 | #endif |
| 299 | |
| 300 | /* add pools to the pool_list which is arranged in the order of size */ |
| 301 | for(i=0; i < GKI_NUM_FIXED_BUF_POOLS ; i++) |
| 302 | { |
| 303 | p_cb->pool_list[i] = i; |
| 304 | } |
| 305 | |
| 306 | p_cb->curr_total_no_of_pools = GKI_NUM_FIXED_BUF_POOLS; |
| 307 | |
| 308 | return; |
| 309 | } |
| 310 | |
| 311 | |
| 312 | /******************************************************************************* |
| 313 | ** |
| 314 | ** Function GKI_init_q |
| 315 | ** |
| 316 | ** Description Called by an application to initialize a buffer queue. |
| 317 | ** |
| 318 | ** Returns void |
| 319 | ** |
| 320 | *******************************************************************************/ |
| 321 | void GKI_init_q (BUFFER_Q *p_q) |
| 322 | { |
| 323 | p_q->p_first = p_q->p_last = NULL; |
| 324 | p_q->count = 0; |
| 325 | |
| 326 | return; |
| 327 | } |
| 328 | |
| 329 | |
| 330 | /******************************************************************************* |
| 331 | ** |
| 332 | ** Function GKI_getbuf |
| 333 | ** |
| 334 | ** Description Called by an application to get a free buffer which |
| 335 | ** is of size greater or equal to the requested size. |
| 336 | ** |
| 337 | ** Note: This routine only takes buffers from public pools. |
| 338 | ** It will not use any buffers from pools |
| 339 | ** marked GKI_RESTRICTED_POOL. |
| 340 | ** |
| 341 | ** Parameters size - (input) number of bytes needed. |
| 342 | ** |
| 343 | ** Returns A pointer to the buffer, or NULL if none available |
| 344 | ** |
| 345 | *******************************************************************************/ |
| 346 | #if GKI_BUFFER_DEBUG |
| 347 | void *GKI_getbuf_debug (UINT16 size, const char * _function_, int _line_) |
| 348 | #else |
| 349 | void *GKI_getbuf (UINT16 size) |
| 350 | #endif |
| 351 | { |
| 352 | UINT8 i; |
| 353 | FREE_QUEUE_T *Q; |
| 354 | BUFFER_HDR_T *p_hdr; |
| 355 | tGKI_COM_CB *p_cb = &gki_cb.com; |
| 356 | #if GKI_BUFFER_DEBUG |
| 357 | UINT8 x; |
| 358 | #endif |
| 359 | |
| 360 | if (size == 0) |
| 361 | { |
| 362 | GKI_exception (GKI_ERROR_BUF_SIZE_ZERO, "getbuf: Size is zero"); |
| 363 | return (NULL); |
| 364 | } |
| 365 | |
| 366 | #if GKI_BUFFER_DEBUG |
| 367 | LOGD("GKI_getbuf() requesting %d func:%s(line=%d)", size, _function_, _line_); |
| 368 | #endif |
| 369 | /* Find the first buffer pool that is public that can hold the desired size */ |
| 370 | for (i=0; i < p_cb->curr_total_no_of_pools; i++) |
| 371 | { |
| 372 | if ( size <= p_cb->freeq[p_cb->pool_list[i]].size ) |
| 373 | break; |
| 374 | } |
| 375 | |
| 376 | if(i == p_cb->curr_total_no_of_pools) |
| 377 | { |
| 378 | GKI_exception (GKI_ERROR_BUF_SIZE_TOOBIG, "getbuf: Size is too big"); |
| 379 | return (NULL); |
| 380 | } |
| 381 | |
| 382 | /* Make sure the buffers aren't disturbed til finished with allocation */ |
| 383 | GKI_disable(); |
| 384 | |
| 385 | /* search the public buffer pools that are big enough to hold the size |
| 386 | * until a free buffer is found */ |
| 387 | for ( ; i < p_cb->curr_total_no_of_pools; i++) |
| 388 | { |
| 389 | /* Only look at PUBLIC buffer pools (bypass RESTRICTED pools) */ |
| 390 | if (((UINT16)1 << p_cb->pool_list[i]) & p_cb->pool_access_mask) |
| 391 | continue; |
| 392 | |
| 393 | Q = &p_cb->freeq[p_cb->pool_list[i]]; |
| 394 | if(Q->cur_cnt < Q->total) |
| 395 | { |
| 396 | #ifdef GKI_USE_DEFERED_ALLOC_BUF_POOLS |
| 397 | if(Q->p_first == 0 && gki_alloc_free_queue(i) != TRUE) |
| 398 | { |
| 399 | GKI_TRACE_ERROR_0("GKI_getbuf() out of buffer"); |
| 400 | return NULL; |
| 401 | } |
| 402 | #endif |
| 403 | p_hdr = Q->p_first; |
| 404 | Q->p_first = p_hdr->p_next; |
| 405 | |
| 406 | if (!Q->p_first) |
| 407 | Q->p_last = NULL; |
| 408 | |
| 409 | if(++Q->cur_cnt > Q->max_cnt) |
| 410 | Q->max_cnt = Q->cur_cnt; |
| 411 | |
| 412 | GKI_enable(); |
| 413 | |
| 414 | p_hdr->task_id = GKI_get_taskid(); |
| 415 | |
| 416 | p_hdr->status = BUF_STATUS_UNLINKED; |
| 417 | p_hdr->p_next = NULL; |
| 418 | p_hdr->Type = 0; |
| 419 | #if GKI_BUFFER_DEBUG |
| 420 | LOGD("GKI_getbuf() allocated, %x, %x (%d of %d used) %d", (UINT8*)p_hdr + BUFFER_HDR_SIZE, p_hdr, Q->cur_cnt, Q->total, p_cb->freeq[i].total); |
| 421 | |
| 422 | strncpy(p_hdr->_function, _function_, _GKI_MAX_FUNCTION_NAME_LEN); |
| 423 | p_hdr->_function[_GKI_MAX_FUNCTION_NAME_LEN] = '\0'; |
| 424 | p_hdr->_line = _line_; |
| 425 | #endif |
| 426 | return ((void *) ((UINT8 *)p_hdr + BUFFER_HDR_SIZE)); |
| 427 | } |
| 428 | } |
| 429 | |
| 430 | GKI_TRACE_ERROR_0("GKI_getbuf() unable to allocate buffer!!!!!"); |
| 431 | #if GKI_BUFFER_DEBUG |
| 432 | LOGD("GKI_getbuf() unable to allocate buffer!!!!!"); |
| 433 | LOGD("******************** GKI Memory Pool Dump ********************"); |
| 434 | |
| 435 | p_cb = &gki_cb.com; |
| 436 | |
| 437 | LOGD("Dumping total of %d buffer pools", p_cb->curr_total_no_of_pools); |
| 438 | |
| 439 | for (i=0 ; i < p_cb->curr_total_no_of_pools; i++) |
| 440 | { |
| 441 | p_hdr = (BUFFER_HDR_T *)p_cb->pool_start[i]; |
| 442 | |
| 443 | LOGD("pool %d has a total of %d buffers (start=%p)", i, p_cb->freeq[i].total, p_hdr); |
| 444 | |
| 445 | for (x=0; p_hdr && x < p_cb->freeq[i].total; x++) |
| 446 | { |
| 447 | if (p_hdr->status != BUF_STATUS_FREE) |
| 448 | { |
| 449 | LOGD("pool:%d, buf[%d]:%x, hdr:%x status=%d func:%s(line=%d)", i, x, (UINT8*)p_hdr + BUFFER_HDR_SIZE, p_hdr, p_hdr->status, p_hdr->_function, p_hdr->_line); |
| 450 | } |
| 451 | |
| 452 | p_hdr = (BUFFER_HDR_T *)((UINT8 *)p_hdr + p_cb->pool_size[i]); |
| 453 | } |
| 454 | } |
| 455 | LOGD("**************************************************************"); |
| 456 | #endif |
| 457 | |
| 458 | GKI_TRACE_ERROR_0("Failed to allocate GKI buffer"); |
| 459 | |
| 460 | GKI_enable(); |
| 461 | |
| 462 | return (NULL); |
| 463 | } |
| 464 | |
| 465 | |
| 466 | /******************************************************************************* |
| 467 | ** |
| 468 | ** Function GKI_getpoolbuf |
| 469 | ** |
| 470 | ** Description Called by an application to get a free buffer from |
| 471 | ** a specific buffer pool. |
| 472 | ** |
| 473 | ** Note: If there are no more buffers available from the pool, |
| 474 | ** the public buffers are searched for an available buffer. |
| 475 | ** |
| 476 | ** Parameters pool_id - (input) pool ID to get a buffer out of. |
| 477 | ** |
| 478 | ** Returns A pointer to the buffer, or NULL if none available |
| 479 | ** |
| 480 | *******************************************************************************/ |
| 481 | #if GKI_BUFFER_DEBUG |
| 482 | void *GKI_getpoolbuf_debug (UINT8 pool_id, const char * _function_, int _line_) |
| 483 | #else |
| 484 | void *GKI_getpoolbuf (UINT8 pool_id) |
| 485 | #endif |
| 486 | { |
| 487 | FREE_QUEUE_T *Q; |
| 488 | BUFFER_HDR_T *p_hdr; |
| 489 | tGKI_COM_CB *p_cb = &gki_cb.com; |
| 490 | |
| 491 | if (pool_id >= GKI_NUM_TOTAL_BUF_POOLS) |
| 492 | return (NULL); |
| 493 | |
| 494 | #if GKI_BUFFER_DEBUG |
| 495 | LOGD("GKI_getpoolbuf() requesting from %d func:%s(line=%d)", pool_id, _function_, _line_); |
| 496 | #endif |
| 497 | /* Make sure the buffers aren't disturbed til finished with allocation */ |
| 498 | GKI_disable(); |
| 499 | |
| 500 | Q = &p_cb->freeq[pool_id]; |
| 501 | if(Q->cur_cnt < Q->total) |
| 502 | { |
| 503 | #ifdef GKI_USE_DEFERED_ALLOC_BUF_POOLS |
| 504 | if(Q->p_first == 0 && gki_alloc_free_queue(pool_id) != TRUE) |
| 505 | return NULL; |
| 506 | #endif |
| 507 | p_hdr = Q->p_first; |
| 508 | Q->p_first = p_hdr->p_next; |
| 509 | |
| 510 | if (!Q->p_first) |
| 511 | Q->p_last = NULL; |
| 512 | |
| 513 | if(++Q->cur_cnt > Q->max_cnt) |
| 514 | Q->max_cnt = Q->cur_cnt; |
| 515 | |
| 516 | GKI_enable(); |
| 517 | |
| 518 | |
| 519 | p_hdr->task_id = GKI_get_taskid(); |
| 520 | |
| 521 | p_hdr->status = BUF_STATUS_UNLINKED; |
| 522 | p_hdr->p_next = NULL; |
| 523 | p_hdr->Type = 0; |
| 524 | |
| 525 | #if GKI_BUFFER_DEBUG |
| 526 | LOGD("GKI_getpoolbuf() allocated, %x, %x (%d of %d used) %d", (UINT8*)p_hdr + BUFFER_HDR_SIZE, p_hdr, Q->cur_cnt, Q->total, p_cb->freeq[pool_id].total); |
| 527 | |
| 528 | strncpy(p_hdr->_function, _function_, _GKI_MAX_FUNCTION_NAME_LEN); |
| 529 | p_hdr->_function[_GKI_MAX_FUNCTION_NAME_LEN] = '\0'; |
| 530 | p_hdr->_line = _line_; |
| 531 | #endif |
| 532 | return ((void *) ((UINT8 *)p_hdr + BUFFER_HDR_SIZE)); |
| 533 | } |
| 534 | |
| 535 | /* If here, no buffers in the specified pool */ |
| 536 | GKI_enable(); |
| 537 | |
| 538 | #if GKI_BUFFER_DEBUG |
| 539 | /* try for free buffers in public pools */ |
| 540 | return (GKI_getbuf_debug(p_cb->freeq[pool_id].size, _function_, _line_)); |
| 541 | #else |
| 542 | /* try for free buffers in public pools */ |
| 543 | return (GKI_getbuf(p_cb->freeq[pool_id].size)); |
| 544 | #endif |
| 545 | } |
| 546 | |
| 547 | /******************************************************************************* |
| 548 | ** |
| 549 | ** Function GKI_freebuf |
| 550 | ** |
| 551 | ** Description Called by an application to return a buffer to the free pool. |
| 552 | ** |
| 553 | ** Parameters p_buf - (input) address of the beginning of a buffer. |
| 554 | ** |
| 555 | ** Returns void |
| 556 | ** |
| 557 | *******************************************************************************/ |
| 558 | void GKI_freebuf (void *p_buf) |
| 559 | { |
| 560 | FREE_QUEUE_T *Q; |
| 561 | BUFFER_HDR_T *p_hdr; |
| 562 | |
| 563 | #if (GKI_ENABLE_BUF_CORRUPTION_CHECK == TRUE) |
| 564 | if (!p_buf || gki_chk_buf_damage(p_buf)) |
| 565 | { |
| 566 | GKI_exception(GKI_ERROR_BUF_CORRUPTED, "Free - Buf Corrupted"); |
| 567 | return; |
| 568 | } |
| 569 | #endif |
| 570 | |
| 571 | p_hdr = (BUFFER_HDR_T *) ((UINT8 *)p_buf - BUFFER_HDR_SIZE); |
| 572 | |
| 573 | #if GKI_BUFFER_DEBUG |
| 574 | LOGD("GKI_freebuf() freeing, %x, %x, func:%s(line=%d)", p_buf, p_hdr, p_hdr->_function, p_hdr->_line); |
| 575 | #endif |
| 576 | |
| 577 | if (p_hdr->status != BUF_STATUS_UNLINKED) |
| 578 | { |
| 579 | GKI_exception(GKI_ERROR_FREEBUF_BUF_LINKED, "Freeing Linked Buf"); |
| 580 | return; |
| 581 | } |
| 582 | |
| 583 | if (p_hdr->q_id >= GKI_NUM_TOTAL_BUF_POOLS) |
| 584 | { |
| 585 | GKI_exception(GKI_ERROR_FREEBUF_BAD_QID, "Bad Buf QId"); |
| 586 | return; |
| 587 | } |
| 588 | |
| 589 | GKI_disable(); |
| 590 | |
| 591 | /* |
| 592 | ** Release the buffer |
| 593 | */ |
| 594 | Q = &gki_cb.com.freeq[p_hdr->q_id]; |
| 595 | if (Q->p_last) |
| 596 | Q->p_last->p_next = p_hdr; |
| 597 | else |
| 598 | Q->p_first = p_hdr; |
| 599 | |
| 600 | Q->p_last = p_hdr; |
| 601 | p_hdr->p_next = NULL; |
| 602 | p_hdr->status = BUF_STATUS_FREE; |
| 603 | p_hdr->task_id = GKI_INVALID_TASK; |
| 604 | if (Q->cur_cnt > 0) |
| 605 | Q->cur_cnt--; |
| 606 | |
| 607 | GKI_enable(); |
| 608 | |
| 609 | return; |
| 610 | } |
| 611 | |
| 612 | |
| 613 | /******************************************************************************* |
| 614 | ** |
| 615 | ** Function GKI_get_buf_size |
| 616 | ** |
| 617 | ** Description Called by an application to get the size of a buffer. |
| 618 | ** |
| 619 | ** Parameters p_buf - (input) address of the beginning of a buffer. |
| 620 | ** |
| 621 | ** Returns the size of the buffer |
| 622 | ** |
| 623 | *******************************************************************************/ |
| 624 | UINT16 GKI_get_buf_size (void *p_buf) |
| 625 | { |
| 626 | BUFFER_HDR_T *p_hdr; |
| 627 | |
| 628 | p_hdr = (BUFFER_HDR_T *)((UINT8 *) p_buf - BUFFER_HDR_SIZE); |
| 629 | |
| 630 | if ((UINT32)p_hdr & 1) |
| 631 | return (0); |
| 632 | |
| 633 | if (p_hdr->q_id < GKI_NUM_TOTAL_BUF_POOLS) |
| 634 | { |
| 635 | return (gki_cb.com.freeq[p_hdr->q_id].size); |
| 636 | } |
| 637 | |
| 638 | return (0); |
| 639 | } |
| 640 | |
| 641 | /******************************************************************************* |
| 642 | ** |
| 643 | ** Function gki_chk_buf_damage |
| 644 | ** |
| 645 | ** Description Called internally by OSS to check for buffer corruption. |
| 646 | ** |
| 647 | ** Returns TRUE if there is a problem, else FALSE |
| 648 | ** |
| 649 | *******************************************************************************/ |
| 650 | BOOLEAN gki_chk_buf_damage(void *p_buf) |
| 651 | { |
| 652 | #if (GKI_ENABLE_BUF_CORRUPTION_CHECK == TRUE) |
| 653 | |
| 654 | UINT32 *magic; |
| 655 | magic = (UINT32 *)((UINT8 *) p_buf + GKI_get_buf_size(p_buf)); |
| 656 | |
| 657 | if ((UINT32)magic & 1) |
| 658 | return (TRUE); |
| 659 | |
| 660 | if (*magic == MAGIC_NO) |
| 661 | return (FALSE); |
| 662 | |
| 663 | return (TRUE); |
| 664 | |
| 665 | #else |
| 666 | |
| 667 | return (FALSE); |
| 668 | |
| 669 | #endif |
| 670 | } |
| 671 | |
| 672 | /******************************************************************************* |
| 673 | ** |
| 674 | ** Function GKI_send_msg |
| 675 | ** |
| 676 | ** Description Called by applications to send a buffer to a task |
| 677 | ** |
| 678 | ** Returns Nothing |
| 679 | ** |
| 680 | *******************************************************************************/ |
| 681 | void GKI_send_msg (UINT8 task_id, UINT8 mbox, void *msg) |
| 682 | { |
| 683 | BUFFER_HDR_T *p_hdr; |
| 684 | tGKI_COM_CB *p_cb = &gki_cb.com; |
| 685 | |
| 686 | /* If task non-existant or not started, drop buffer */ |
| 687 | if ((task_id >= GKI_MAX_TASKS) || (mbox >= NUM_TASK_MBOX) || (p_cb->OSRdyTbl[task_id] == TASK_DEAD)) |
| 688 | { |
| 689 | GKI_exception(GKI_ERROR_SEND_MSG_BAD_DEST, "Sending to unknown dest"); |
| 690 | GKI_freebuf (msg); |
| 691 | return; |
| 692 | } |
| 693 | |
| 694 | #if (GKI_ENABLE_BUF_CORRUPTION_CHECK == TRUE) |
| 695 | if (gki_chk_buf_damage(msg)) |
| 696 | { |
| 697 | GKI_exception(GKI_ERROR_BUF_CORRUPTED, "Send - Buffer corrupted"); |
| 698 | return; |
| 699 | } |
| 700 | #endif |
| 701 | |
| 702 | p_hdr = (BUFFER_HDR_T *) ((UINT8 *) msg - BUFFER_HDR_SIZE); |
| 703 | |
| 704 | if (p_hdr->status != BUF_STATUS_UNLINKED) |
| 705 | { |
| 706 | GKI_exception(GKI_ERROR_SEND_MSG_BUF_LINKED, "Send - buffer linked"); |
| 707 | return; |
| 708 | } |
| 709 | |
| 710 | GKI_disable(); |
| 711 | |
| 712 | if (p_cb->OSTaskQFirst[task_id][mbox]) |
| 713 | p_cb->OSTaskQLast[task_id][mbox]->p_next = p_hdr; |
| 714 | else |
| 715 | p_cb->OSTaskQFirst[task_id][mbox] = p_hdr; |
| 716 | |
| 717 | p_cb->OSTaskQLast[task_id][mbox] = p_hdr; |
| 718 | |
| 719 | p_hdr->p_next = NULL; |
| 720 | p_hdr->status = BUF_STATUS_QUEUED; |
| 721 | p_hdr->task_id = task_id; |
| 722 | |
| 723 | |
| 724 | GKI_enable(); |
| 725 | |
| 726 | GKI_send_event(task_id, (UINT16)EVENT_MASK(mbox)); |
| 727 | |
| 728 | return; |
| 729 | } |
| 730 | |
| 731 | /******************************************************************************* |
| 732 | ** |
| 733 | ** Function GKI_read_mbox |
| 734 | ** |
| 735 | ** Description Called by applications to read a buffer from one of |
| 736 | ** the task mailboxes. A task can only read its own mailbox. |
| 737 | ** |
| 738 | ** Parameters: mbox - (input) mailbox ID to read (0, 1, 2, or 3) |
| 739 | ** |
| 740 | ** Returns NULL if the mailbox was empty, else the address of a buffer |
| 741 | ** |
| 742 | *******************************************************************************/ |
| 743 | void *GKI_read_mbox (UINT8 mbox) |
| 744 | { |
| 745 | UINT8 task_id = GKI_get_taskid(); |
| 746 | void *p_buf = NULL; |
| 747 | BUFFER_HDR_T *p_hdr; |
| 748 | |
| 749 | if ((task_id >= GKI_MAX_TASKS) || (mbox >= NUM_TASK_MBOX)) |
| 750 | return (NULL); |
| 751 | |
| 752 | GKI_disable(); |
| 753 | |
| 754 | if (gki_cb.com.OSTaskQFirst[task_id][mbox]) |
| 755 | { |
| 756 | p_hdr = gki_cb.com.OSTaskQFirst[task_id][mbox]; |
| 757 | gki_cb.com.OSTaskQFirst[task_id][mbox] = p_hdr->p_next; |
| 758 | |
| 759 | p_hdr->p_next = NULL; |
| 760 | p_hdr->status = BUF_STATUS_UNLINKED; |
| 761 | |
| 762 | p_buf = (UINT8 *)p_hdr + BUFFER_HDR_SIZE; |
| 763 | } |
| 764 | |
| 765 | GKI_enable(); |
| 766 | |
| 767 | return (p_buf); |
| 768 | } |
| 769 | |
| 770 | |
| 771 | |
| 772 | /******************************************************************************* |
| 773 | ** |
| 774 | ** Function GKI_enqueue |
| 775 | ** |
| 776 | ** Description Enqueue a buffer at the tail of the queue |
| 777 | ** |
| 778 | ** Parameters: p_q - (input) pointer to a queue. |
| 779 | ** p_buf - (input) address of the buffer to enqueue |
| 780 | ** |
| 781 | ** Returns void |
| 782 | ** |
| 783 | *******************************************************************************/ |
| 784 | void GKI_enqueue (BUFFER_Q *p_q, void *p_buf) |
| 785 | { |
| 786 | BUFFER_HDR_T *p_hdr; |
| 787 | |
| 788 | #if (GKI_ENABLE_BUF_CORRUPTION_CHECK == TRUE) |
| 789 | if (gki_chk_buf_damage(p_buf)) |
| 790 | { |
| 791 | GKI_exception(GKI_ERROR_BUF_CORRUPTED, "Enqueue - Buffer corrupted"); |
| 792 | return; |
| 793 | } |
| 794 | #endif |
| 795 | |
| 796 | p_hdr = (BUFFER_HDR_T *) ((UINT8 *) p_buf - BUFFER_HDR_SIZE); |
| 797 | |
| 798 | if (p_hdr->status != BUF_STATUS_UNLINKED) |
| 799 | { |
| 800 | GKI_exception(GKI_ERROR_ENQUEUE_BUF_LINKED, "Eneueue - buf already linked"); |
| 801 | return; |
| 802 | } |
| 803 | |
| 804 | GKI_disable(); |
| 805 | |
| 806 | /* Since the queue is exposed (C vs C++), keep the pointers in exposed format */ |
| 807 | if (p_q->p_first) |
| 808 | { |
| 809 | BUFFER_HDR_T *p_last_hdr = (BUFFER_HDR_T *)((UINT8 *)p_q->p_last - BUFFER_HDR_SIZE); |
| 810 | p_last_hdr->p_next = p_hdr; |
| 811 | } |
| 812 | else |
| 813 | p_q->p_first = p_buf; |
| 814 | |
| 815 | p_q->p_last = p_buf; |
| 816 | p_q->count++; |
| 817 | |
| 818 | p_hdr->p_next = NULL; |
| 819 | p_hdr->status = BUF_STATUS_QUEUED; |
| 820 | |
| 821 | GKI_enable(); |
| 822 | |
| 823 | return; |
| 824 | } |
| 825 | |
| 826 | |
| 827 | /******************************************************************************* |
| 828 | ** |
| 829 | ** Function GKI_enqueue_head |
| 830 | ** |
| 831 | ** Description Enqueue a buffer at the head of the queue |
| 832 | ** |
| 833 | ** Parameters: p_q - (input) pointer to a queue. |
| 834 | ** p_buf - (input) address of the buffer to enqueue |
| 835 | ** |
| 836 | ** Returns void |
| 837 | ** |
| 838 | *******************************************************************************/ |
| 839 | void GKI_enqueue_head (BUFFER_Q *p_q, void *p_buf) |
| 840 | { |
| 841 | BUFFER_HDR_T *p_hdr; |
| 842 | |
| 843 | #if (GKI_ENABLE_BUF_CORRUPTION_CHECK == TRUE) |
| 844 | if (gki_chk_buf_damage(p_buf)) |
| 845 | { |
| 846 | GKI_exception(GKI_ERROR_BUF_CORRUPTED, "Enqueue - Buffer corrupted"); |
| 847 | return; |
| 848 | } |
| 849 | #endif |
| 850 | |
| 851 | p_hdr = (BUFFER_HDR_T *) ((UINT8 *) p_buf - BUFFER_HDR_SIZE); |
| 852 | |
| 853 | if (p_hdr->status != BUF_STATUS_UNLINKED) |
| 854 | { |
| 855 | GKI_exception(GKI_ERROR_ENQUEUE_BUF_LINKED, "Eneueue head - buf already linked"); |
| 856 | return; |
| 857 | } |
| 858 | |
| 859 | GKI_disable(); |
| 860 | |
| 861 | if (p_q->p_first) |
| 862 | { |
| 863 | p_hdr->p_next = (BUFFER_HDR_T *)((UINT8 *)p_q->p_first - BUFFER_HDR_SIZE); |
| 864 | p_q->p_first = p_buf; |
| 865 | } |
| 866 | else |
| 867 | { |
| 868 | p_q->p_first = p_buf; |
| 869 | p_q->p_last = p_buf; |
| 870 | p_hdr->p_next = NULL; |
| 871 | } |
| 872 | p_q->count++; |
| 873 | |
| 874 | p_hdr->status = BUF_STATUS_QUEUED; |
| 875 | |
| 876 | GKI_enable(); |
| 877 | |
| 878 | return; |
| 879 | } |
| 880 | |
| 881 | |
| 882 | /******************************************************************************* |
| 883 | ** |
| 884 | ** Function GKI_dequeue |
| 885 | ** |
| 886 | ** Description Dequeues a buffer from the head of a queue |
| 887 | ** |
| 888 | ** Parameters: p_q - (input) pointer to a queue. |
| 889 | ** |
| 890 | ** Returns NULL if queue is empty, else buffer |
| 891 | ** |
| 892 | *******************************************************************************/ |
| 893 | void *GKI_dequeue (BUFFER_Q *p_q) |
| 894 | { |
| 895 | BUFFER_HDR_T *p_hdr; |
| 896 | |
| 897 | GKI_disable(); |
| 898 | |
| 899 | if (!p_q || !p_q->count) |
| 900 | { |
| 901 | GKI_enable(); |
| 902 | return (NULL); |
| 903 | } |
| 904 | |
| 905 | p_hdr = (BUFFER_HDR_T *)((UINT8 *)p_q->p_first - BUFFER_HDR_SIZE); |
| 906 | |
| 907 | /* Keep buffers such that GKI header is invisible |
| 908 | */ |
| 909 | if (p_hdr->p_next) |
| 910 | p_q->p_first = ((UINT8 *)p_hdr->p_next + BUFFER_HDR_SIZE); |
| 911 | else |
| 912 | { |
| 913 | p_q->p_first = NULL; |
| 914 | p_q->p_last = NULL; |
| 915 | } |
| 916 | |
| 917 | p_q->count--; |
| 918 | |
| 919 | p_hdr->p_next = NULL; |
| 920 | p_hdr->status = BUF_STATUS_UNLINKED; |
| 921 | |
| 922 | GKI_enable(); |
| 923 | |
| 924 | return ((UINT8 *)p_hdr + BUFFER_HDR_SIZE); |
| 925 | } |
| 926 | |
| 927 | |
| 928 | /******************************************************************************* |
| 929 | ** |
| 930 | ** Function GKI_remove_from_queue |
| 931 | ** |
| 932 | ** Description Dequeue a buffer from the middle of the queue |
| 933 | ** |
| 934 | ** Parameters: p_q - (input) pointer to a queue. |
| 935 | ** p_buf - (input) address of the buffer to enqueue |
| 936 | ** |
| 937 | ** Returns NULL if queue is empty, else buffer |
| 938 | ** |
| 939 | *******************************************************************************/ |
| 940 | void *GKI_remove_from_queue (BUFFER_Q *p_q, void *p_buf) |
| 941 | { |
| 942 | BUFFER_HDR_T *p_prev; |
| 943 | BUFFER_HDR_T *p_buf_hdr; |
| 944 | |
| 945 | GKI_disable(); |
| 946 | |
| 947 | if (p_buf == p_q->p_first) |
| 948 | { |
| 949 | GKI_enable(); |
| 950 | return (GKI_dequeue (p_q)); |
| 951 | } |
| 952 | |
| 953 | p_buf_hdr = (BUFFER_HDR_T *)((UINT8 *)p_buf - BUFFER_HDR_SIZE); |
| 954 | p_prev = (BUFFER_HDR_T *)((UINT8 *)p_q->p_first - BUFFER_HDR_SIZE); |
| 955 | |
| 956 | for ( ; p_prev; p_prev = p_prev->p_next) |
| 957 | { |
| 958 | /* If the previous points to this one, move the pointers around */ |
| 959 | if (p_prev->p_next == p_buf_hdr) |
| 960 | { |
| 961 | p_prev->p_next = p_buf_hdr->p_next; |
| 962 | |
| 963 | /* If we are removing the last guy in the queue, update p_last */ |
| 964 | if (p_buf == p_q->p_last) |
| 965 | p_q->p_last = p_prev + 1; |
| 966 | |
| 967 | /* One less in the queue */ |
| 968 | p_q->count--; |
| 969 | |
| 970 | /* The buffer is now unlinked */ |
| 971 | p_buf_hdr->p_next = NULL; |
| 972 | p_buf_hdr->status = BUF_STATUS_UNLINKED; |
| 973 | |
| 974 | GKI_enable(); |
| 975 | return (p_buf); |
| 976 | } |
| 977 | } |
| 978 | |
| 979 | GKI_enable(); |
| 980 | return (NULL); |
| 981 | } |
| 982 | |
| 983 | /******************************************************************************* |
| 984 | ** |
| 985 | ** Function GKI_getfirst |
| 986 | ** |
| 987 | ** Description Return a pointer to the first buffer in a queue |
| 988 | ** |
| 989 | ** Parameters: p_q - (input) pointer to a queue. |
| 990 | ** |
| 991 | ** Returns NULL if queue is empty, else buffer address |
| 992 | ** |
| 993 | *******************************************************************************/ |
| 994 | void *GKI_getfirst (BUFFER_Q *p_q) |
| 995 | { |
| 996 | return (p_q->p_first); |
| 997 | } |
| 998 | |
| 999 | /******************************************************************************* |
| 1000 | ** |
| 1001 | ** Function GKI_getlast |
| 1002 | ** |
| 1003 | ** Description Return a pointer to the last buffer in a queue |
| 1004 | ** |
| 1005 | ** Parameters: p_q - (input) pointer to a queue. |
| 1006 | ** |
| 1007 | ** Returns NULL if queue is empty, else buffer address |
| 1008 | ** |
| 1009 | *******************************************************************************/ |
| 1010 | void *GKI_getlast (BUFFER_Q *p_q) |
| 1011 | { |
| 1012 | return (p_q->p_last); |
| 1013 | } |
| 1014 | |
| 1015 | /******************************************************************************* |
| 1016 | ** |
| 1017 | ** Function GKI_getnext |
| 1018 | ** |
| 1019 | ** Description Return a pointer to the next buffer in a queue |
| 1020 | ** |
| 1021 | ** Parameters: p_buf - (input) pointer to the buffer to find the next one from. |
| 1022 | ** |
| 1023 | ** Returns NULL if no more buffers in the queue, else next buffer address |
| 1024 | ** |
| 1025 | *******************************************************************************/ |
| 1026 | void *GKI_getnext (void *p_buf) |
| 1027 | { |
| 1028 | BUFFER_HDR_T *p_hdr; |
| 1029 | |
| 1030 | p_hdr = (BUFFER_HDR_T *) ((UINT8 *) p_buf - BUFFER_HDR_SIZE); |
| 1031 | |
| 1032 | if (p_hdr->p_next) |
| 1033 | return ((UINT8 *)p_hdr->p_next + BUFFER_HDR_SIZE); |
| 1034 | else |
| 1035 | return (NULL); |
| 1036 | } |
| 1037 | |
| 1038 | |
| 1039 | |
| 1040 | /******************************************************************************* |
| 1041 | ** |
| 1042 | ** Function GKI_queue_is_empty |
| 1043 | ** |
| 1044 | ** Description Check the status of a queue. |
| 1045 | ** |
| 1046 | ** Parameters: p_q - (input) pointer to a queue. |
| 1047 | ** |
| 1048 | ** Returns TRUE if queue is empty, else FALSE |
| 1049 | ** |
| 1050 | *******************************************************************************/ |
| 1051 | BOOLEAN GKI_queue_is_empty(BUFFER_Q *p_q) |
| 1052 | { |
| 1053 | return ((BOOLEAN) (p_q->count == 0)); |
| 1054 | } |
| 1055 | |
| 1056 | /******************************************************************************* |
| 1057 | ** |
| 1058 | ** Function GKI_find_buf_start |
| 1059 | ** |
| 1060 | ** Description This function is called with an address inside a buffer, |
| 1061 | ** and returns the start address ofthe buffer. |
| 1062 | ** |
| 1063 | ** The buffer should be one allocated from one of GKI's pools. |
| 1064 | ** |
| 1065 | ** Parameters: p_user_area - (input) address of anywhere in a GKI buffer. |
| 1066 | ** |
| 1067 | ** Returns void * - Address of the beginning of the specified buffer if successful, |
| 1068 | ** otherwise NULL if unsuccessful |
| 1069 | ** |
| 1070 | *******************************************************************************/ |
| 1071 | void *GKI_find_buf_start (void *p_user_area) |
| 1072 | { |
| 1073 | UINT16 xx, size; |
| 1074 | UINT32 yy; |
| 1075 | tGKI_COM_CB *p_cb = &gki_cb.com; |
| 1076 | UINT8 *p_ua = (UINT8 *)p_user_area; |
| 1077 | |
| 1078 | for (xx = 0; xx < GKI_NUM_TOTAL_BUF_POOLS; xx++) |
| 1079 | { |
| 1080 | if ((p_ua > p_cb->pool_start[xx]) && (p_ua < p_cb->pool_end[xx])) |
| 1081 | { |
| 1082 | yy = (UINT32)(p_ua - p_cb->pool_start[xx]); |
| 1083 | |
| 1084 | size = p_cb->pool_size[xx]; |
| 1085 | |
| 1086 | yy = (yy / size) * size; |
| 1087 | |
| 1088 | return ((void *) (p_cb->pool_start[xx] + yy + sizeof(BUFFER_HDR_T)) ); |
| 1089 | } |
| 1090 | } |
| 1091 | |
| 1092 | /* If here, invalid address - not in one of our buffers */ |
| 1093 | GKI_exception (GKI_ERROR_BUF_SIZE_ZERO, "GKI_get_buf_start:: bad addr"); |
| 1094 | |
| 1095 | return (NULL); |
| 1096 | } |
| 1097 | |
| 1098 | |
| 1099 | /******************************************************** |
| 1100 | * The following functions are not needed for light stack |
| 1101 | *********************************************************/ |
| 1102 | #if (!defined(BTU_STACK_LITE_ENABLED) || BTU_STACK_LITE_ENABLED == FALSE) |
| 1103 | |
| 1104 | /******************************************************************************* |
| 1105 | ** |
| 1106 | ** Function GKI_set_pool_permission |
| 1107 | ** |
| 1108 | ** Description This function is called to set or change the permissions for |
| 1109 | ** the specified pool ID. |
| 1110 | ** |
| 1111 | ** Parameters pool_id - (input) pool ID to be set or changed |
| 1112 | ** permission - (input) GKI_PUBLIC_POOL or GKI_RESTRICTED_POOL |
| 1113 | ** |
| 1114 | ** Returns GKI_SUCCESS if successful |
| 1115 | ** GKI_INVALID_POOL if unsuccessful |
| 1116 | ** |
| 1117 | *******************************************************************************/ |
| 1118 | UINT8 GKI_set_pool_permission(UINT8 pool_id, UINT8 permission) |
| 1119 | { |
| 1120 | tGKI_COM_CB *p_cb = &gki_cb.com; |
| 1121 | |
| 1122 | if (pool_id < GKI_NUM_TOTAL_BUF_POOLS) |
| 1123 | { |
| 1124 | if (permission == GKI_RESTRICTED_POOL) |
| 1125 | p_cb->pool_access_mask = (UINT16)(p_cb->pool_access_mask | (1 << pool_id)); |
| 1126 | |
| 1127 | else /* mark the pool as public */ |
| 1128 | p_cb->pool_access_mask = (UINT16)(p_cb->pool_access_mask & ~(1 << pool_id)); |
| 1129 | |
| 1130 | return (GKI_SUCCESS); |
| 1131 | } |
| 1132 | else |
| 1133 | return (GKI_INVALID_POOL); |
| 1134 | } |
| 1135 | |
| 1136 | /******************************************************************************* |
| 1137 | ** |
| 1138 | ** Function gki_add_to_pool_list |
| 1139 | ** |
| 1140 | ** Description Adds pool to the pool list which is arranged in the |
| 1141 | ** order of size |
| 1142 | ** |
| 1143 | ** Returns void |
| 1144 | ** |
| 1145 | *******************************************************************************/ |
| 1146 | static void gki_add_to_pool_list(UINT8 pool_id) |
| 1147 | { |
| 1148 | |
| 1149 | INT32 i, j; |
| 1150 | tGKI_COM_CB *p_cb = &gki_cb.com; |
| 1151 | |
| 1152 | /* Find the position where the specified pool should be inserted into the list */ |
| 1153 | for(i=0; i < p_cb->curr_total_no_of_pools; i++) |
| 1154 | { |
| 1155 | |
| 1156 | if(p_cb->freeq[pool_id].size <= p_cb->freeq[ p_cb->pool_list[i] ].size) |
| 1157 | break; |
| 1158 | } |
| 1159 | |
| 1160 | /* Insert the new buffer pool ID into the list of pools */ |
| 1161 | for(j = p_cb->curr_total_no_of_pools; j > i; j--) |
| 1162 | { |
| 1163 | p_cb->pool_list[j] = p_cb->pool_list[j-1]; |
| 1164 | } |
| 1165 | |
| 1166 | p_cb->pool_list[i] = pool_id; |
| 1167 | |
| 1168 | return; |
| 1169 | } |
| 1170 | |
| 1171 | /******************************************************************************* |
| 1172 | ** |
| 1173 | ** Function gki_remove_from_pool_list |
| 1174 | ** |
| 1175 | ** Description Removes pool from the pool list. Called when a pool is deleted |
| 1176 | ** |
| 1177 | ** Returns void |
| 1178 | ** |
| 1179 | *******************************************************************************/ |
| 1180 | static void gki_remove_from_pool_list(UINT8 pool_id) |
| 1181 | { |
| 1182 | tGKI_COM_CB *p_cb = &gki_cb.com; |
| 1183 | UINT8 i; |
| 1184 | |
| 1185 | for(i=0; i < p_cb->curr_total_no_of_pools; i++) |
| 1186 | { |
| 1187 | if(pool_id == p_cb->pool_list[i]) |
| 1188 | break; |
| 1189 | } |
| 1190 | |
| 1191 | while (i < (p_cb->curr_total_no_of_pools - 1)) |
| 1192 | { |
| 1193 | p_cb->pool_list[i] = p_cb->pool_list[i+1]; |
| 1194 | i++; |
| 1195 | } |
| 1196 | |
| 1197 | return; |
| 1198 | } |
| 1199 | |
| 1200 | /******************************************************************************* |
| 1201 | ** |
| 1202 | ** Function GKI_igetpoolbuf |
| 1203 | ** |
| 1204 | ** Description Called by an interrupt service routine to get a free buffer from |
| 1205 | ** a specific buffer pool. |
| 1206 | ** |
| 1207 | ** Parameters pool_id - (input) pool ID to get a buffer out of. |
| 1208 | ** |
| 1209 | ** Returns A pointer to the buffer, or NULL if none available |
| 1210 | ** |
| 1211 | *******************************************************************************/ |
| 1212 | void *GKI_igetpoolbuf (UINT8 pool_id) |
| 1213 | { |
| 1214 | FREE_QUEUE_T *Q; |
| 1215 | BUFFER_HDR_T *p_hdr; |
| 1216 | |
| 1217 | if (pool_id >= GKI_NUM_TOTAL_BUF_POOLS) |
| 1218 | return (NULL); |
| 1219 | |
| 1220 | |
| 1221 | Q = &gki_cb.com.freeq[pool_id]; |
| 1222 | if(Q->cur_cnt < Q->total) |
| 1223 | { |
| 1224 | p_hdr = Q->p_first; |
| 1225 | Q->p_first = p_hdr->p_next; |
| 1226 | |
| 1227 | if (!Q->p_first) |
| 1228 | Q->p_last = NULL; |
| 1229 | |
| 1230 | if(++Q->cur_cnt > Q->max_cnt) |
| 1231 | Q->max_cnt = Q->cur_cnt; |
| 1232 | |
| 1233 | p_hdr->task_id = GKI_get_taskid(); |
| 1234 | |
| 1235 | p_hdr->status = BUF_STATUS_UNLINKED; |
| 1236 | p_hdr->p_next = NULL; |
| 1237 | p_hdr->Type = 0; |
| 1238 | |
| 1239 | return ((void *) ((UINT8 *)p_hdr + BUFFER_HDR_SIZE)); |
| 1240 | } |
| 1241 | |
| 1242 | return (NULL); |
| 1243 | } |
| 1244 | |
| 1245 | /******************************************************************************* |
| 1246 | ** |
| 1247 | ** Function GKI_poolcount |
| 1248 | ** |
| 1249 | ** Description Called by an application to get the total number of buffers |
| 1250 | ** in the specified buffer pool. |
| 1251 | ** |
| 1252 | ** Parameters pool_id - (input) pool ID to get the free count of. |
| 1253 | ** |
| 1254 | ** Returns the total number of buffers in the pool |
| 1255 | ** |
| 1256 | *******************************************************************************/ |
| 1257 | UINT16 GKI_poolcount (UINT8 pool_id) |
| 1258 | { |
| 1259 | if (pool_id >= GKI_NUM_TOTAL_BUF_POOLS) |
| 1260 | return (0); |
| 1261 | |
| 1262 | return (gki_cb.com.freeq[pool_id].total); |
| 1263 | } |
| 1264 | |
| 1265 | /******************************************************************************* |
| 1266 | ** |
| 1267 | ** Function GKI_poolfreecount |
| 1268 | ** |
| 1269 | ** Description Called by an application to get the number of free buffers |
| 1270 | ** in the specified buffer pool. |
| 1271 | ** |
| 1272 | ** Parameters pool_id - (input) pool ID to get the free count of. |
| 1273 | ** |
| 1274 | ** Returns the number of free buffers in the pool |
| 1275 | ** |
| 1276 | *******************************************************************************/ |
| 1277 | UINT16 GKI_poolfreecount (UINT8 pool_id) |
| 1278 | { |
| 1279 | FREE_QUEUE_T *Q; |
| 1280 | |
| 1281 | if (pool_id >= GKI_NUM_TOTAL_BUF_POOLS) |
| 1282 | return (0); |
| 1283 | |
| 1284 | Q = &gki_cb.com.freeq[pool_id]; |
| 1285 | |
| 1286 | return ((UINT16)(Q->total - Q->cur_cnt)); |
| 1287 | } |
| 1288 | |
| 1289 | /******************************************************************************* |
| 1290 | ** |
| 1291 | ** Function GKI_change_buf_owner |
| 1292 | ** |
| 1293 | ** Description Called to change the task ownership of a buffer. |
| 1294 | ** |
| 1295 | ** Parameters: p_buf - (input) pointer to the buffer |
| 1296 | ** task_id - (input) task id to change ownership to |
| 1297 | ** |
| 1298 | ** Returns void |
| 1299 | ** |
| 1300 | *******************************************************************************/ |
| 1301 | void GKI_change_buf_owner (void *p_buf, UINT8 task_id) |
| 1302 | { |
| 1303 | BUFFER_HDR_T *p_hdr = (BUFFER_HDR_T *) ((UINT8 *) p_buf - BUFFER_HDR_SIZE); |
| 1304 | |
| 1305 | p_hdr->task_id = task_id; |
| 1306 | |
| 1307 | return; |
| 1308 | } |
| 1309 | |
| 1310 | #if (defined(GKI_SEND_MSG_FROM_ISR) && GKI_SEND_MSG_FROM_ISR == TRUE) |
| 1311 | /******************************************************************************* |
| 1312 | ** |
| 1313 | ** Function GKI_isend_msg |
| 1314 | ** |
| 1315 | ** Description Called from interrupt context to send a buffer to a task |
| 1316 | ** |
| 1317 | ** Returns Nothing |
| 1318 | ** |
| 1319 | *******************************************************************************/ |
| 1320 | void GKI_isend_msg (UINT8 task_id, UINT8 mbox, void *msg) |
| 1321 | { |
| 1322 | BUFFER_HDR_T *p_hdr; |
| 1323 | tGKI_COM_CB *p_cb = &gki_cb.com; |
| 1324 | |
| 1325 | /* If task non-existant or not started, drop buffer */ |
| 1326 | if ((task_id >= GKI_MAX_TASKS) || (mbox >= NUM_TASK_MBOX) || (p_cb->OSRdyTbl[task_id] == TASK_DEAD)) |
| 1327 | { |
| 1328 | GKI_exception(GKI_ERROR_SEND_MSG_BAD_DEST, "Sending to unknown dest"); |
| 1329 | GKI_freebuf (msg); |
| 1330 | return; |
| 1331 | } |
| 1332 | |
| 1333 | #if (GKI_ENABLE_BUF_CORRUPTION_CHECK == TRUE) |
| 1334 | if (gki_chk_buf_damage(msg)) |
| 1335 | { |
| 1336 | GKI_exception(GKI_ERROR_BUF_CORRUPTED, "Send - Buffer corrupted"); |
| 1337 | return; |
| 1338 | } |
| 1339 | #endif |
| 1340 | |
| 1341 | #if (GKI_ENABLE_OWNER_CHECK == TRUE) |
| 1342 | if (gki_chk_buf_owner(msg)) |
| 1343 | { |
| 1344 | GKI_exception(GKI_ERROR_NOT_BUF_OWNER, "Send by non-owner"); |
| 1345 | return; |
| 1346 | } |
| 1347 | #endif |
| 1348 | |
| 1349 | p_hdr = (BUFFER_HDR_T *) ((UINT8 *) msg - BUFFER_HDR_SIZE); |
| 1350 | |
| 1351 | if (p_hdr->status != BUF_STATUS_UNLINKED) |
| 1352 | { |
| 1353 | GKI_exception(GKI_ERROR_SEND_MSG_BUF_LINKED, "Send - buffer linked"); |
| 1354 | return; |
| 1355 | } |
| 1356 | |
| 1357 | if (p_cb->OSTaskQFirst[task_id][mbox]) |
| 1358 | p_cb->OSTaskQLast[task_id][mbox]->p_next = p_hdr; |
| 1359 | else |
| 1360 | p_cb->OSTaskQFirst[task_id][mbox] = p_hdr; |
| 1361 | |
| 1362 | p_cb->OSTaskQLast[task_id][mbox] = p_hdr; |
| 1363 | |
| 1364 | p_hdr->p_next = NULL; |
| 1365 | p_hdr->status = BUF_STATUS_QUEUED; |
| 1366 | p_hdr->task_id = task_id; |
| 1367 | |
| 1368 | GKI_isend_event(task_id, (UINT16)EVENT_MASK(mbox)); |
| 1369 | |
| 1370 | return; |
| 1371 | } |
| 1372 | #endif |
| 1373 | |
| 1374 | /******************************************************************************* |
| 1375 | ** |
| 1376 | ** Function GKI_create_pool |
| 1377 | ** |
| 1378 | ** Description Called by applications to create a buffer pool. |
| 1379 | ** |
| 1380 | ** Parameters: size - (input) length (in bytes) of each buffer in the pool |
| 1381 | ** count - (input) number of buffers to allocate for the pool |
| 1382 | ** permission - (input) restricted or public access? |
| 1383 | ** (GKI_PUBLIC_POOL or GKI_RESTRICTED_POOL) |
| 1384 | ** p_mem_pool - (input) pointer to an OS memory pool, NULL if not provided |
| 1385 | ** |
| 1386 | ** Returns the buffer pool ID, which should be used in calls to |
| 1387 | ** GKI_getpoolbuf(). If a pool could not be created, this |
| 1388 | ** function returns 0xff. |
| 1389 | ** |
| 1390 | *******************************************************************************/ |
| 1391 | UINT8 GKI_create_pool (UINT16 size, UINT16 count, UINT8 permission, void *p_mem_pool) |
| 1392 | { |
| 1393 | UINT8 xx; |
| 1394 | UINT32 mem_needed; |
| 1395 | INT32 tempsize = size; |
| 1396 | tGKI_COM_CB *p_cb = &gki_cb.com; |
| 1397 | |
| 1398 | /* First make sure the size of each pool has a valid size with room for the header info */ |
| 1399 | if (size > MAX_USER_BUF_SIZE) |
| 1400 | return (GKI_INVALID_POOL); |
| 1401 | |
| 1402 | /* First, look for an unused pool */ |
| 1403 | for (xx = 0; xx < GKI_NUM_TOTAL_BUF_POOLS; xx++) |
| 1404 | { |
| 1405 | if (!p_cb->pool_start[xx]) |
| 1406 | break; |
| 1407 | } |
| 1408 | |
| 1409 | if (xx == GKI_NUM_TOTAL_BUF_POOLS) |
| 1410 | return (GKI_INVALID_POOL); |
| 1411 | |
| 1412 | /* Ensure an even number of longwords */ |
| 1413 | tempsize = (INT32)ALIGN_POOL(size); |
| 1414 | |
| 1415 | mem_needed = (tempsize + BUFFER_PADDING_SIZE) * count; |
| 1416 | |
| 1417 | if (!p_mem_pool) |
| 1418 | p_mem_pool = GKI_os_malloc(mem_needed); |
| 1419 | |
| 1420 | if (p_mem_pool) |
| 1421 | { |
| 1422 | /* Initialize the new pool */ |
| 1423 | gki_init_free_queue (xx, size, count, p_mem_pool); |
| 1424 | gki_add_to_pool_list(xx); |
| 1425 | (void) GKI_set_pool_permission (xx, permission); |
| 1426 | p_cb->curr_total_no_of_pools++; |
| 1427 | |
| 1428 | return (xx); |
| 1429 | } |
| 1430 | else |
| 1431 | return (GKI_INVALID_POOL); |
| 1432 | } |
| 1433 | |
| 1434 | /******************************************************************************* |
| 1435 | ** |
| 1436 | ** Function GKI_delete_pool |
| 1437 | ** |
| 1438 | ** Description Called by applications to delete a buffer pool. The function |
| 1439 | ** calls the operating specific function to free the actual memory. |
| 1440 | ** An exception is generated if an error is detected. |
| 1441 | ** |
| 1442 | ** Parameters: pool_id - (input) Id of the poll being deleted. |
| 1443 | ** |
| 1444 | ** Returns void |
| 1445 | ** |
| 1446 | *******************************************************************************/ |
| 1447 | void GKI_delete_pool (UINT8 pool_id) |
| 1448 | { |
| 1449 | FREE_QUEUE_T *Q; |
| 1450 | tGKI_COM_CB *p_cb = &gki_cb.com; |
| 1451 | |
| 1452 | if ((pool_id >= GKI_NUM_TOTAL_BUF_POOLS) || (!p_cb->pool_start[pool_id])) |
| 1453 | return; |
| 1454 | |
| 1455 | GKI_disable(); |
| 1456 | Q = &p_cb->freeq[pool_id]; |
| 1457 | |
| 1458 | if (!Q->cur_cnt) |
| 1459 | { |
| 1460 | Q->size = 0; |
| 1461 | Q->total = 0; |
| 1462 | Q->cur_cnt = 0; |
| 1463 | Q->max_cnt = 0; |
| 1464 | Q->p_first = NULL; |
| 1465 | Q->p_last = NULL; |
| 1466 | |
| 1467 | GKI_os_free (p_cb->pool_start[pool_id]); |
| 1468 | |
| 1469 | p_cb->pool_start[pool_id] = NULL; |
| 1470 | p_cb->pool_end[pool_id] = NULL; |
| 1471 | p_cb->pool_size[pool_id] = 0; |
| 1472 | |
| 1473 | gki_remove_from_pool_list(pool_id); |
| 1474 | p_cb->curr_total_no_of_pools--; |
| 1475 | } |
| 1476 | else |
| 1477 | GKI_exception(GKI_ERROR_DELETE_POOL_BAD_QID, "Deleting bad pool"); |
| 1478 | |
| 1479 | GKI_enable(); |
| 1480 | |
| 1481 | return; |
| 1482 | } |
| 1483 | |
| 1484 | #endif /* BTU_STACK_LITE_ENABLED == FALSE */ |
| 1485 | |
| 1486 | /******************************************************************************* |
| 1487 | ** |
| 1488 | ** Function GKI_get_pool_bufsize |
| 1489 | ** |
| 1490 | ** Description Called by an application to get the size of buffers in a pool |
| 1491 | ** |
| 1492 | ** Parameters Pool ID. |
| 1493 | ** |
| 1494 | ** Returns the size of buffers in the pool |
| 1495 | ** |
| 1496 | *******************************************************************************/ |
| 1497 | UINT16 GKI_get_pool_bufsize (UINT8 pool_id) |
| 1498 | { |
| 1499 | if (pool_id < GKI_NUM_TOTAL_BUF_POOLS) |
| 1500 | return (gki_cb.com.freeq[pool_id].size); |
| 1501 | |
| 1502 | return (0); |
| 1503 | } |
| 1504 | |
| 1505 | /******************************************************************************* |
| 1506 | ** |
| 1507 | ** Function GKI_poolutilization |
| 1508 | ** |
| 1509 | ** Description Called by an application to get the buffer utilization |
| 1510 | ** in the specified buffer pool. |
| 1511 | ** |
| 1512 | ** Parameters pool_id - (input) pool ID to get the free count of. |
| 1513 | ** |
| 1514 | ** Returns % of buffers used from 0 to 100 |
| 1515 | ** |
| 1516 | *******************************************************************************/ |
| 1517 | UINT16 GKI_poolutilization (UINT8 pool_id) |
| 1518 | { |
| 1519 | FREE_QUEUE_T *Q; |
| 1520 | |
| 1521 | if (pool_id >= GKI_NUM_TOTAL_BUF_POOLS) |
| 1522 | return (100); |
| 1523 | |
| 1524 | Q = &gki_cb.com.freeq[pool_id]; |
| 1525 | |
| 1526 | if (Q->total == 0) |
| 1527 | return (100); |
| 1528 | |
| 1529 | return ((Q->cur_cnt * 100) / Q->total); |
| 1530 | } |
| 1531 | |