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 19 #pragma once 20 21 #include "gki.h" 22 23 typedef struct _buffer_hdr 24 { 25 struct _buffer_hdr *p_next; /* next buffer in the queue */ 26 UINT8 q_id; /* id of the queue */ 27 UINT8 status; /* FREE, UNLINKED or QUEUED */ 28 UINT8 Type; 29 UINT16 size; 30 } BUFFER_HDR_T; 31 32 typedef struct _free_queue 33 { 34 BUFFER_HDR_T *_p_first; /* first buffer in the queue */ 35 BUFFER_HDR_T *_p_last; /* last buffer in the queue */ 36 UINT16 size; /* size of the buffers in the pool */ 37 UINT16 total; /* toatal number of buffers */ 38 UINT16 cur_cnt; /* number of buffers currently allocated */ 39 UINT16 max_cnt; /* maximum number of buffers allocated at any time */ 40 } FREE_QUEUE_T; 41 42 /* Put all GKI variables into one control block 43 */ 44 typedef struct 45 { 46 /* Define the buffer pool management variables 47 */ 48 FREE_QUEUE_T freeq[GKI_NUM_TOTAL_BUF_POOLS]; 49 50 UINT16 pool_buf_size[GKI_NUM_TOTAL_BUF_POOLS]; 51 52 /* Define the buffer pool start addresses 53 */ 54 UINT8 *pool_start[GKI_NUM_TOTAL_BUF_POOLS]; /* array of pointers to the start of each buffer pool */ 55 UINT8 *pool_end[GKI_NUM_TOTAL_BUF_POOLS]; /* array of pointers to the end of each buffer pool */ 56 UINT16 pool_size[GKI_NUM_TOTAL_BUF_POOLS]; /* actual size of the buffers in a pool */ 57 58 /* Define the buffer pool access control variables */ 59 UINT16 pool_access_mask; /* Bits are set if the corresponding buffer pool is a restricted pool */ 60 } tGKI_COM_CB; 61 62 /* Internal GKI function prototypes 63 */ 64 void gki_buffer_init(void); 65 void gki_buffer_cleanup(void); 66
