Shad Ansari | 2f7f9be | 2017-06-07 13:34:53 -0700 | [diff] [blame] | 1 | /* |
| 2 | <:copyright-BRCM:2016:DUAL/GPL:standard |
| 3 | |
| 4 | Broadcom Proprietary and Confidential.(c) 2016 Broadcom |
| 5 | All Rights Reserved |
| 6 | |
| 7 | Unless you and Broadcom execute a separate written software license |
| 8 | agreement governing use of this software, this software is licensed |
| 9 | to you under the terms of the GNU General Public License version 2 |
| 10 | (the "GPL"), available at http://www.broadcom.com/licenses/GPLv2.php, |
| 11 | with the following added to such license: |
| 12 | |
| 13 | As a special exception, the copyright holders of this software give |
| 14 | you permission to link this software with independent modules, and |
| 15 | to copy and distribute the resulting executable under terms of your |
| 16 | choice, provided that you also meet, for each linked independent |
| 17 | module, the terms and conditions of the license of that module. |
| 18 | An independent module is a module which is not derived from this |
| 19 | software. The special exception does not apply to any modifications |
| 20 | of the software. |
| 21 | |
| 22 | Not withstanding the above, under no circumstances may you combine |
| 23 | this software in any way with any other Broadcom software provided |
| 24 | under a license other than the GPL, without Broadcom's express prior |
| 25 | written consent. |
| 26 | |
| 27 | :> |
| 28 | */ |
| 29 | |
| 30 | #ifndef BCMOS_COMMON2_H_ |
| 31 | #define BCMOS_COMMON2_H_ |
| 32 | |
| 33 | #ifndef BCMOS_SYSTEM_H_ |
| 34 | #error Please do not include bcmos_common2.h directly. Include bcmos_system.h |
| 35 | #endif |
| 36 | |
| 37 | #include "bcmos_endian.h" |
| 38 | |
| 39 | /* \addtogroup system |
| 40 | * @{ |
| 41 | */ |
| 42 | |
| 43 | #define BCMOS_MAX_NAME_LENGTH 48 |
| 44 | |
| 45 | /** \addtogroup system_task |
| 46 | * @{ |
| 47 | */ |
| 48 | |
| 49 | /** Task control block */ |
| 50 | struct bcmos_task |
| 51 | { |
| 52 | /* OS independent fields */ |
| 53 | bcmos_task_parm parm; /**< Task creation parameters */ |
| 54 | bcmos_module *modules[BCMOS_MAX_MODULES_PER_TASK]; |
| 55 | uint32_t active_modules; /**< Bitmask of modules for which events are pending */ |
| 56 | bcmos_sem active_sem; /**< Semaphore used to wait for module activity */ |
| 57 | bcmos_fastlock active_lock; /**< Lock protecting active_modules */ |
| 58 | bcmos_module_id current_module; /**< Current module */ |
| 59 | bcmos_bool destroy_request; /**< Task destroy request pending */ |
| 60 | bcmos_bool destroyed; /**< Set by task handler before it terminates */ |
| 61 | STAILQ_ENTRY(bcmos_task) list; /**< Next task pointer */ |
| 62 | char name[BCMOS_MAX_NAME_LENGTH]; /**< Task name */ |
| 63 | bcmos_sys_task sys_task; /**< OS-specific task extension */ |
| 64 | uint32_t magic; /* magic number */ |
| 65 | #define BCMOS_TASK_MAGIC (('t' << 24) | ('a' << 16) | ('s' << 8) | 'k') |
| 66 | #define BCMOS_TASK_MAGIC_DESTROYED (('t' << 24) | ('a' << 16) | ('s' << 8) | '~') |
| 67 | }; |
| 68 | |
| 69 | /** \addtogroup system_mem |
| 70 | * @{ |
| 71 | */ |
| 72 | |
| 73 | #ifndef BCMOS_CALLOC_INLINE |
| 74 | |
| 75 | /** Allocate memory from the main heap and clear it |
| 76 | * \ingroup system_heap |
| 77 | * \param[in] size |
| 78 | * \returns memory block pointer or NULL |
| 79 | */ |
| 80 | static inline void *bcmos_calloc(uint32_t size) |
| 81 | { |
| 82 | void *ptr = bcmos_alloc(size); |
| 83 | if (ptr) |
| 84 | memset(ptr, 0, size); |
| 85 | return ptr; |
| 86 | } |
| 87 | #endif /* #ifndef BCMOS_CALLOC_INLINE */ |
| 88 | |
| 89 | #ifndef BCMOS_DMA_ALLOC_FREE_INLINE |
| 90 | |
| 91 | /** Allocate DMA-able memory |
| 92 | * \param[in] device Device id |
| 93 | * \param[in] size Block size (bytes) |
| 94 | * \returns memory block pointer or NULL |
| 95 | */ |
| 96 | void *bcmos_dma_alloc(uint8_t device, uint32_t size); |
| 97 | |
| 98 | /** Release DMA-able memory |
| 99 | * \param[in] device Device id |
| 100 | * \param[in] ptr Block pointer |
| 101 | */ |
| 102 | void bcmos_dma_free(uint8_t device, void *ptr); |
| 103 | |
| 104 | #endif /* #ifndef BCMOS_DMA_ALLOC_FREE_INLINE */ |
| 105 | |
| 106 | #ifndef BCMOS_VIRT_TO_PHYS_INLINE |
| 107 | |
| 108 | /** Convert virtual address to physical address |
| 109 | * |
| 110 | * \param[in] va Virtual address |
| 111 | * \returns - physical address va is mapped to |
| 112 | */ |
| 113 | unsigned long bcmos_virt_to_phys(void *va); |
| 114 | |
| 115 | #endif /* #ifndef BCMOS_VIRT_TO_PHYS_INLINE */ |
| 116 | |
| 117 | /** @} */ |
| 118 | |
| 119 | /** \addtogroup blk_pool |
| 120 | * @{ |
| 121 | */ |
| 122 | |
| 123 | /* Memory block header */ |
| 124 | typedef struct bcmos_memblk bcmos_memblk; |
| 125 | |
| 126 | /* Memory block list */ |
| 127 | typedef STAILQ_HEAD(, bcmos_memblk) bcmos_memblk_list; |
| 128 | |
| 129 | /* Block memory pool control block */ |
| 130 | struct bcmos_blk_pool |
| 131 | { |
| 132 | bcmos_fastlock lock; /**< Pool protection lock */ |
| 133 | bcmos_memblk_list free_list;/**< Free block list */ |
| 134 | bcmos_blk_pool_parm parm; /**< Pool parameters */ |
| 135 | bcmos_blk_pool_stat stat; /**< Pool statistics */ |
| 136 | void *start; /**< Pool start pointer */ |
| 137 | char name[BCMOS_MAX_NAME_LENGTH]; /**< Pool name */ |
| 138 | uint32_t magic; /**< magic number */ |
| 139 | #define BCMOS_BLK_POOL_VALID (('b'<<24) | ('l' << 16) | ('p' << 8) | 'o') |
| 140 | #define BCMOS_BLK_POOL_DELETED (('b'<<24) | ('l' << 16) | ('p' << 8) | '~') |
| 141 | STAILQ_ENTRY(bcmos_blk_pool) list; /* Pool list */ |
| 142 | }; |
| 143 | |
| 144 | /* Total memory occupied by all block pools */ |
| 145 | extern uint32_t bcmos_total_blk_pool_size; |
| 146 | |
| 147 | /** @} blk_pool */ |
| 148 | |
| 149 | /** \addtogroup system_msg |
| 150 | * @{ |
| 151 | */ |
| 152 | |
| 153 | /** Release message |
| 154 | * \param[in] msg Message handle |
| 155 | */ |
| 156 | static inline void bcmos_msg_free(bcmos_msg *msg) |
| 157 | { |
| 158 | if (msg->release) |
| 159 | { |
| 160 | msg->release(msg); |
| 161 | } |
| 162 | else |
| 163 | { |
| 164 | bcmos_free(msg); |
| 165 | } |
| 166 | } |
| 167 | |
| 168 | typedef STAILQ_HEAD(, bcmos_msg) bcmos_msg_list; |
| 169 | |
| 170 | /** Simple Message queue control block. |
| 171 | * Simple message queue doesn't support waiting on. |
| 172 | * It is used in module queue mechanisms. |
| 173 | */ |
| 174 | typedef struct bcmos_msg_queue_nw |
| 175 | { |
| 176 | bcmos_msg_queue_parm parm; /**< Queue parameters */ |
| 177 | bcmos_msg_queue_stat stat; /**< Queue statistics */ |
| 178 | bcmos_fastlock lock; /**< Queue protection lock */ |
| 179 | bcmos_msg_list msgl; /**< Message list */ |
| 180 | bcmos_msg_list msgl_urg; /**< Urgent message list */ |
| 181 | uint32_t flags; /**< Queue flags */ |
| 182 | } bcmos_msg_queue_nw; |
| 183 | |
| 184 | /** Message queue control block */ |
| 185 | struct bcmos_msg_queue |
| 186 | { |
| 187 | bcmos_msg_queue_nw q; /**< Queue control block */ |
| 188 | bcmos_sem m; /**< Mutex to suspend waiting task on */ |
| 189 | bcmos_bool is_waiting; /**< TRUE if task is waiting on queue */ |
| 190 | char name[BCMOS_MAX_NAME_LENGTH]; /**< Queue name */ |
| 191 | #ifdef BCMOS_MSG_QUEUE_REMOTE_SUPPORT |
| 192 | long ep; /**< Endpoint handle (e.g., socket) */ |
| 193 | void *ep_extra_data; /**< Extra data - depending on ep type */ |
| 194 | uint32_t ep_extra_data_size;/**< Extra data size */ |
| 195 | uint8_t *send_buf; /**< Send buffer */ |
| 196 | uint8_t *recv_buf; /**< Receive buffer */ |
| 197 | bcmos_mutex send_lock; /**< Mutex that protects send_buf */ |
| 198 | #endif |
| 199 | uint32_t magic; /**< magic number */ |
| 200 | #define BCMOS_MSG_QUEUE_VALID (('m'<<24) | ('q' << 16) | ('u' << 8) | 'e') |
| 201 | #define BCMOS_MSG_QUEUE_DELETED (('m'<<24) | ('q' << 16) | ('u' << 8) | '~') |
| 202 | STAILQ_ENTRY(bcmos_msg_queue) list; /* Queue list */ |
| 203 | }; |
| 204 | |
| 205 | /** Message queue group control block */ |
| 206 | struct bcmos_msg_qgroup |
| 207 | { |
| 208 | bcmos_msg_qgroup_parm parm; /**< Queue group parameters */ |
| 209 | bcmos_msg_list *msgl; /**< Array of parm.nqueues message lists */ |
| 210 | bcmos_msg_queue_stat stat; /**< Queue group statistics */ |
| 211 | bcmos_sem m; /**< Mutex to suspend waiting task on */ |
| 212 | bcmos_fastlock lock; /**< Queue group protection lock */ |
| 213 | uint32_t active_mask; /**< Bitmask of queues containing messages */ |
| 214 | bcmos_bool is_waiting; /**< TRUE if task is waiting on queue group */ |
| 215 | char name[BCMOS_MAX_NAME_LENGTH]; /**< Queue group name */ |
| 216 | uint32_t magic; /**< magic number */ |
| 217 | #define BCMOS_MSG_QGROUP_VALID (('m'<<24) | ('q' << 16) | ('g' << 8) | 'r') |
| 218 | #define BCMOS_MSG_QGROUP_DELETED (('m'<<24) | ('q' << 16) | ('g' << 8) | '~') |
| 219 | STAILQ_ENTRY(bcmos_msg_qgroup) list; /* Queue group list */ |
| 220 | }; |
| 221 | |
| 222 | /** Message pool control block */ |
| 223 | struct bcmos_msg_pool |
| 224 | { |
| 225 | bcmos_blk_pool blk_pool; /**< Underlying block memory pool */ |
| 226 | bcmos_msg_pool_parm parm; /**< Pool parameters */ |
| 227 | }; |
| 228 | |
| 229 | /* Total memory occupied by all message pools */ |
| 230 | extern uint32_t bcmos_total_msg_pool_size; |
| 231 | |
| 232 | /** @} system_msg */ |
| 233 | |
| 234 | /** \addtogroup system_timer */ |
| 235 | |
| 236 | /* Timer precision. Must be a multiple of 2. |
| 237 | * Timed expiration timestamp is rounded up to the nearest multiple of timer precision |
| 238 | */ |
| 239 | #define BCMOS_TIMER_PRECISION_US 32 |
| 240 | #if (BCMOS_TIMER_PRECISION_US & (BCMOS_TIMER_PRECISION_US - 1)) |
| 241 | #error BCMOS_TIMER_PRECISION_US must be a multiple of 2 |
| 242 | #endif |
| 243 | |
| 244 | /* There are 2 timer implementations |
| 245 | * - DLIST-based - works well when most of active timers have the same duration |
| 246 | * - RB-tree based - more expensive in simple case, but scales better for large number of timers |
| 247 | * with arbitrary durations |
| 248 | */ |
| 249 | #define BCMOS_TIMER_RB_TREE |
| 250 | |
| 251 | /** Timer control block */ |
| 252 | struct bcmos_timer |
| 253 | { |
| 254 | bcmos_msg msg; /**< Timer message */ |
| 255 | bcmos_timer_parm parm; /**< Timer parameters */ |
| 256 | F_bcmos_timer_handler handler; /**< Timer handler */ |
| 257 | uint32_t period; /**< Timer period (us) if periodic */ |
| 258 | uint32_t expire_at; /**< Timestamp when timer should expire */ |
| 259 | uint32_t flags; /* Internal flags */ |
| 260 | #define BCMOS_TIMER_FLAG_RUNNING 0x00000001 /* Timer is running */ |
| 261 | #define BCMOS_TIMER_FLAG_EXPIRED 0x00000002 /* Timer has expired, but not yet handled */ |
| 262 | #define BCMOS_TIMER_FLAG_ACTIVE (BCMOS_TIMER_FLAG_RUNNING | BCMOS_TIMER_FLAG_EXPIRED) |
| 263 | #define BCMOS_TIMER_FLAG_VALID 0x00000004 |
| 264 | bcmos_msg_queue_nw *queue; /**< Queue expired timer is on */ |
| 265 | bcmos_task *task; /**< Task that executes timer handler */ |
| 266 | #ifdef BCMOS_TIMER_RB_TREE |
| 267 | RB_ENTRY(bcmos_timer) entry; /**< Timer pool entry */ |
| 268 | #else |
| 269 | TAILQ_ENTRY(bcmos_timer) entry; |
| 270 | #endif |
| 271 | }; |
| 272 | |
| 273 | /** Check if timer is running |
| 274 | * \param[in] timer Timer handle |
| 275 | * \returns TRUE if timer is running |
| 276 | */ |
| 277 | static inline bcmos_bool bcmos_timer_is_running(const bcmos_timer *timer) |
| 278 | { |
| 279 | bcmos_bool running = ((timer->flags & BCMOS_TIMER_FLAG_RUNNING) != 0) || |
| 280 | (timer->parm.periodic && ((timer->flags & BCMOS_TIMER_FLAG_EXPIRED) != 0)); |
| 281 | return running; |
| 282 | } |
| 283 | |
| 284 | static inline bcmos_timer *_bcmos_msg_to_timer(bcmos_msg *msg) |
| 285 | { |
| 286 | BUG_ON(msg->type != BCMOS_MSG_ID_INTERNAL_TIMER); |
| 287 | return (bcmos_timer *)msg; |
| 288 | } |
| 289 | |
| 290 | /** @} */ |
| 291 | |
| 292 | /** \addtogroup system_module |
| 293 | * @{ |
| 294 | */ |
| 295 | |
| 296 | /** Module control block */ |
| 297 | struct bcmos_module |
| 298 | { |
| 299 | bcmos_module_parm parm; /**< Module parameters */ |
| 300 | bcmos_module_id id; /**< Module id */ |
| 301 | int idx; /**< Module index in task control block */ |
| 302 | bcmos_msg_queue_nw msgq; /**< Message queue */ |
| 303 | bcmos_task *my_task; /**< Task the module is associated with */ |
| 304 | void *context; /**< User-defined context */ |
| 305 | char name[BCMOS_MAX_NAME_LENGTH]; /**< Module name */ |
| 306 | }; |
| 307 | |
| 308 | /** @} system_module */ |
| 309 | |
| 310 | /** \addtogroup system_event |
| 311 | * @{ |
| 312 | */ |
| 313 | |
| 314 | /** Event control block */ |
| 315 | struct bcmos_event |
| 316 | { |
| 317 | bcmos_msg msg; /**< Message header. Used to deliver event to module's queue */ |
| 318 | bcmos_event_id id; /**< Event set id */ |
| 319 | bcmos_event_parm parm; /**< Event parameters */ |
| 320 | bcmos_fastlock lock; /**< Protects event control block */ |
| 321 | uint32_t active_bits; /**< Active event bits */ |
| 322 | |
| 323 | bcmos_sem m; /**< Mutex to suspend task on. Traditional mode only */ |
| 324 | bcmos_bool is_waiting; /**< TRUE if task is waiting for event */ |
| 325 | char name[BCMOS_MAX_NAME_LENGTH]; /**< Event name */ |
| 326 | }; |
| 327 | |
| 328 | |
| 329 | static inline bcmos_event *_bcmos_msg_to_event(bcmos_msg *msg) |
| 330 | { |
| 331 | BUG_ON(msg->type != BCMOS_MSG_ID_INTERNAL_EVENT); |
| 332 | return (bcmos_event *)msg; |
| 333 | } |
| 334 | |
| 335 | /* |
| 336 | * Low level services |
| 337 | */ |
| 338 | |
| 339 | /** \addtogroup system_buf |
| 340 | * @{ |
| 341 | */ |
| 342 | |
| 343 | #ifndef BCMOS_BUF_OS_SPECIFIC |
| 344 | #define BCMOS_BUF_DATA_INLINE |
| 345 | #endif |
| 346 | |
| 347 | #ifdef BCMOS_BUF_INLINE |
| 348 | #define BCMOS_BUF_ALLOC_FREE_INLINE |
| 349 | #define BCMOS_BUF_DATA_INLINE |
| 350 | #endif |
| 351 | |
| 352 | #ifndef BCMOS_BUF_DATA_GUARD |
| 353 | #define BCMOS_BUF_DATA_GUARD 0 |
| 354 | #endif |
| 355 | |
| 356 | #ifndef BCMOS_BUF_DATA_ALIGNMENT |
| 357 | #define BCMOS_BUF_DATA_ALIGNMENT 64 |
| 358 | #endif |
| 359 | |
| 360 | #ifndef BCMOS_BUF_ALLOC_FREE_INLINE |
| 361 | |
| 362 | /** Allocate transport buffer. |
| 363 | * The buffer can accommodate up to size bytes of data. |
| 364 | * In addition it reserves BCMTR_BUF_EXTRA_HEADROOM headroom bytes |
| 365 | * for extra headers. |
| 366 | * |
| 367 | * \param[in] size Data size |
| 368 | * \returns buffer pointer or NULL if no memory |
| 369 | */ |
| 370 | bcmos_buf *bcmos_buf_alloc(uint32_t size); |
| 371 | |
| 372 | /** Release transport buffer allocated by bcmos_buf_alloc() |
| 373 | * |
| 374 | * \param[in] buf Buffer to be released |
| 375 | */ |
| 376 | void bcmos_buf_free(bcmos_buf *buf); |
| 377 | |
| 378 | #endif /* BCMOS_BUF_ALLOC_FREE_INLINE */ |
| 379 | |
| 380 | #ifndef BCMOS_BUF_DATA_INLINE |
| 381 | |
| 382 | /** Get data length |
| 383 | * |
| 384 | * \param[in] buf Buffer |
| 385 | * \returns data length |
| 386 | */ |
| 387 | uint32_t bcmos_buf_length(bcmos_buf *buf); |
| 388 | |
| 389 | /** Set data length |
| 390 | * |
| 391 | * \param[in] buf Buffer |
| 392 | * \param[in] length Data length |
| 393 | * \returns 0=OK, or BCM_ERR_OVERFLOW if length exceeds size |
| 394 | */ |
| 395 | bcmos_errno bcmos_buf_length_set(bcmos_buf *buf, uint32_t length); |
| 396 | |
| 397 | /** Get buffer data pointer. |
| 398 | * \param[in] buf Buffer |
| 399 | * \returns data pointer |
| 400 | */ |
| 401 | uint8_t *bcmos_buf_data(bcmos_buf *buf); |
| 402 | |
| 403 | #endif /* BCMOS_BUF_DATA_INLINE */ |
| 404 | |
| 405 | #ifndef BCMOS_BUF_OS_SPECIFIC |
| 406 | |
| 407 | #ifndef unlikely |
| 408 | #define unlikely(x) (x) |
| 409 | #endif |
| 410 | |
| 411 | /* Generic (not os-specific) sysb implementation */ |
| 412 | |
| 413 | /* |
| 414 | * Network / transport buffer |
| 415 | */ |
| 416 | |
| 417 | |
| 418 | /* Memory block list */ |
| 419 | typedef STAILQ_HEAD(, bcmos_buf) bcmos_buf_list_head; |
| 420 | |
| 421 | typedef struct |
| 422 | { |
| 423 | bcmos_buf_list_head head; /**< Buffer list head */ |
| 424 | } bcmos_buf_queue; |
| 425 | |
| 426 | /* System buffer. We probably can use mbuf as well. */ |
| 427 | struct bcmos_buf |
| 428 | { |
| 429 | uint8_t *start; |
| 430 | uint8_t *data; |
| 431 | bcmos_blk_pool *pool; |
| 432 | uint32_t size; |
| 433 | uint32_t len; |
| 434 | STAILQ_ENTRY(bcmos_buf) list; /**< Next buffer pointer */ |
| 435 | uint8_t channel; |
| 436 | }; |
| 437 | |
| 438 | |
| 439 | #ifndef BCMTR_BUF_EXTRA_HEADROOM |
| 440 | #define BCMTR_BUF_EXTRA_HEADROOM 0 |
| 441 | #endif |
| 442 | |
| 443 | |
| 444 | /** Initialize buffer queue |
| 445 | * \param[in] q Buffer queue |
| 446 | */ |
| 447 | static inline void bcmos_buf_queue_init(bcmos_buf_queue *q) |
| 448 | { |
| 449 | STAILQ_INIT(&q->head); |
| 450 | } |
| 451 | |
| 452 | /* Check if buffer queue is empty |
| 453 | * \param[in] q Buffer queue |
| 454 | * \returns TRUE if the queue is empty |
| 455 | */ |
| 456 | static inline bcmos_bool bcmos_buf_queue_is_empty(bcmos_buf_queue *q) |
| 457 | { |
| 458 | return (bcmos_bool)STAILQ_EMPTY(&q->head); |
| 459 | } |
| 460 | |
| 461 | /** Enqueue buffer |
| 462 | * |
| 463 | * Must be called under lock, e.g., q->lock |
| 464 | * |
| 465 | * \param[in] q Buffer queue |
| 466 | * \param[in] buf Buffer |
| 467 | */ |
| 468 | static inline void bcmos_buf_queue_put(bcmos_buf_queue *q, bcmos_buf *buf) |
| 469 | { |
| 470 | STAILQ_INSERT_TAIL(&q->head, buf, list); |
| 471 | } |
| 472 | |
| 473 | /* Dequeue buffer |
| 474 | * |
| 475 | * Must be called under lock, e.g., q->lock |
| 476 | * |
| 477 | * Remove and return the 1st queued buffer. |
| 478 | * \param[in] q Buffer queue |
| 479 | * \returns the buffer pointer |
| 480 | */ |
| 481 | static inline bcmos_buf *bcmos_buf_queue_get(bcmos_buf_queue *q) |
| 482 | { |
| 483 | bcmos_buf *buf; |
| 484 | buf = STAILQ_FIRST(&q->head); |
| 485 | if (buf) |
| 486 | STAILQ_REMOVE_HEAD(&q->head, list); |
| 487 | return buf; |
| 488 | } |
| 489 | |
| 490 | /* Peek into queue and return the 1st buffer without dequeing it |
| 491 | * |
| 492 | * Must be called under lock, e.g., q->lock |
| 493 | * \param[in] q Buffer queue |
| 494 | * \returns the buffer pointer |
| 495 | */ |
| 496 | static inline bcmos_buf *bcmos_buf_queue_peek(bcmos_buf_queue *q) |
| 497 | { |
| 498 | return STAILQ_FIRST(&q->head); |
| 499 | } |
| 500 | |
| 501 | /* Initialize buffer */ |
| 502 | static inline bcmos_buf *bcmos_buf_init(bcmos_buf *buf, uint8_t *start, |
| 503 | uint8_t *data, uint32_t size, uint32_t len) |
| 504 | { |
| 505 | BUG_ON((void *)(buf +1) != start); |
| 506 | buf->start = start; |
| 507 | buf->data = data; |
| 508 | buf->size = size; |
| 509 | buf->len = len; |
| 510 | buf->pool = NULL; |
| 511 | return buf; |
| 512 | } |
| 513 | |
| 514 | /* Get data length */ |
| 515 | static inline uint32_t bcmos_buf_length(bcmos_buf *buf) |
| 516 | { |
| 517 | return buf->len; |
| 518 | } |
| 519 | |
| 520 | /* Set data length */ |
| 521 | static inline bcmos_errno bcmos_buf_length_set(bcmos_buf *buf, uint32_t length) |
| 522 | { |
| 523 | if (unlikely(length > buf->size - (buf->data - buf->start))) |
| 524 | { |
| 525 | BCMOS_TRACE_ERR("!!!%s: length=%u size=%u data=%p start=%p data-start=%u\n", |
| 526 | __FUNCTION__, length, buf->size, buf->data, buf->start, (uint32_t)(buf->data - buf->start)); |
| 527 | return BCM_ERR_OVERFLOW; |
| 528 | } |
| 529 | buf->len = length; |
| 530 | return BCM_ERR_OK; |
| 531 | } |
| 532 | |
| 533 | /* Get buffer data pointer. */ |
| 534 | static inline uint8_t *bcmos_buf_data(bcmos_buf *buf) |
| 535 | { |
| 536 | return buf->data; |
| 537 | } |
| 538 | |
| 539 | /* Get buffer channel. */ |
| 540 | static inline uint8_t bcmos_buf_channel(bcmos_buf *buf) |
| 541 | { |
| 542 | return buf->channel; |
| 543 | } |
| 544 | |
| 545 | /* Set buffer channel. */ |
| 546 | static inline void bcmos_buf_channel_set(bcmos_buf *buf, uint8_t channel) |
| 547 | { |
| 548 | buf->channel = channel; |
| 549 | } |
| 550 | |
| 551 | #endif /* #ifndef BCMOS_BUF_OS_SPECIFIC */ |
| 552 | |
| 553 | /** @} bcmos_buf */ |
| 554 | |
| 555 | /** \addtogroup system_cache |
| 556 | * @{ |
| 557 | */ |
| 558 | |
| 559 | #ifndef BCMOS_CACHE_INLINE |
| 560 | |
| 561 | /** Invalidate address area in data cache. Dirty cache lines content is discarded. |
| 562 | * \param[in] start Address area start |
| 563 | * \param[in] size Address area size |
| 564 | */ |
| 565 | void bcmos_dcache_inv(void *start, uint32_t size); |
| 566 | |
| 567 | /** Flush address area in data cache. Dirty cache lines are committed to memory. |
| 568 | * \param[in] start Address area start |
| 569 | * \param[in] size Address area size |
| 570 | */ |
| 571 | void bcmos_dcache_flush(void *start, uint32_t size); |
| 572 | |
| 573 | #endif /* BCMOS_CACHE_INLINE */ |
| 574 | |
| 575 | /** Prepare for DMA write. |
| 576 | * On h/w platforms that support DMA-cache coherency, this function should |
| 577 | * perform write barrier. |
| 578 | * On platforms that don't support DMA cache coherency this function should |
| 579 | * flush the relevant dcache area |
| 580 | * |
| 581 | * \param[in] start DMA buffer start address |
| 582 | * \param[in] size DMA buffer size |
| 583 | */ |
| 584 | static inline void bcmos_prepare_for_dma_write(void *start, uint32_t size) |
| 585 | { |
| 586 | #ifdef BCMOS_DMA_CACHE_COHERENCY |
| 587 | bcmos_barrier(); |
| 588 | #else |
| 589 | bcmos_dcache_flush(start, size); |
| 590 | #endif |
| 591 | } |
| 592 | |
| 593 | /** Prepare for DMA read. |
| 594 | * On h/w platforms that support DMA-cache coherency, this function should |
| 595 | * perform write barrier. |
| 596 | * On platforms that don't support DMA cache coherency this function should |
| 597 | * invalidate the relevant dcache area |
| 598 | * |
| 599 | * \param[in] start DMA buffer start address |
| 600 | * \param[in] size DMA buffer size |
| 601 | */ |
| 602 | static inline void bcmos_prepare_for_dma_read(void *start, uint32_t size) |
| 603 | { |
| 604 | #ifdef BCMOS_DMA_CACHE_COHERENCY |
| 605 | bcmos_barrier(); |
| 606 | #else |
| 607 | bcmos_dcache_inv(start, size); |
| 608 | #endif |
| 609 | } |
| 610 | |
| 611 | /** @} system_cache */ |
| 612 | |
| 613 | /** \addtogroup system_interrupt |
| 614 | * @{ |
| 615 | */ |
| 616 | |
| 617 | #ifdef BCMOS_INTERRUPT_INLINE |
| 618 | #define BCMOS_INTERRUPT_CONNECT_DISCONNECT_INLINE |
| 619 | #define BCMOS_INTERRUPT_ENABLE_DISABLE_INLINE |
| 620 | #endif |
| 621 | |
| 622 | #ifndef BCMOS_INTERRUPT_CONNECT_DISCONNECT_INLINE |
| 623 | /** Connect system interrupt |
| 624 | * \param[in] irq IRQ number |
| 625 | * \param[in] cpu CPU number (for SMP) |
| 626 | * \param[in] flags IRQ flags |
| 627 | * \param[in] isr ISR |
| 628 | * \param[in] name device name |
| 629 | * \param[in] priv Private cookie |
| 630 | * \returns 0=OK, <0- error |
| 631 | */ |
| 632 | int bcmos_int_connect(int irq, int cpu, int flags, |
| 633 | int (*isr)(int irq, void *priv), const char *name, void *priv); |
| 634 | |
| 635 | /** Disconnect system interrupt |
| 636 | * \param[in] irq IRQ number |
| 637 | * \param[in] priv Private cookie passed in bcmos_int_connect() |
| 638 | * \returns 0=OK, <0- error |
| 639 | */ |
| 640 | void bcmos_int_disconnect(int irq, void *priv); |
| 641 | #endif |
| 642 | |
| 643 | #ifndef BCMOS_INTERRUPT_ENABLE_DISABLE_INLINE |
| 644 | /** Unmask IRQ |
| 645 | * \param[in] irq IRQ |
| 646 | */ |
| 647 | void bcmos_int_enable(int irq); |
| 648 | |
| 649 | /** Mask IRQ |
| 650 | * \param[in] irq IRQ |
| 651 | */ |
| 652 | void bcmos_int_disable(int irq); |
| 653 | #endif |
| 654 | |
| 655 | /** @} */ |
| 656 | |
| 657 | /* Get char, put char support */ |
| 658 | #ifndef BCMOS_GETCHAR_INLINE |
| 659 | static inline int bcmos_getchar(void) |
| 660 | { |
| 661 | return getchar(); |
| 662 | } |
| 663 | #endif |
| 664 | |
| 665 | #ifndef BCMOS_PUTCHAR_INLINE |
| 666 | void bcmos_putchar(int c); |
| 667 | #endif |
| 668 | |
| 669 | #ifndef BCMOS_SEM_POST_IS_ALLOWED_INLINE |
| 670 | static inline bcmos_bool bcmos_sem_post_is_allowed(void) |
| 671 | { |
| 672 | return BCMOS_TRUE; |
| 673 | } |
| 674 | #endif |
| 675 | |
| 676 | #endif /* BCMOS_COMMON2_H_ */ |