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      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 "bt_target.h"
     22 #include "bt_types.h"
     23 
     24 static const char GKI_MODULE[] = "gki_module";
     25 
     26 /* Timer list entry callback type
     27 */
     28 typedef void (TIMER_CBACK)(void *p_tle);
     29 #ifndef TIMER_PARAM_TYPE
     30 #define TIMER_PARAM_TYPE    UINT32
     31 #endif
     32 /* Define a timer list entry
     33 */
     34 typedef struct _tle
     35 {
     36     struct _tle  *p_next;
     37     struct _tle  *p_prev;
     38     TIMER_CBACK  *p_cback;
     39     INT32         ticks;
     40     INT32         ticks_initial;
     41     TIMER_PARAM_TYPE   param;
     42     TIMER_PARAM_TYPE   data;
     43     UINT16        event;
     44     UINT8         in_use;
     45 } TIMER_LIST_ENT;
     46 
     47 /***********************************************************************
     48 ** This queue is a general purpose buffer queue, for application use.
     49 */
     50 typedef struct
     51 {
     52     void    *_p_first;
     53     void    *_p_last;
     54     UINT16   _count;
     55 } BUFFER_Q;
     56 
     57 #define GKI_PUBLIC_POOL         0       /* General pool accessible to GKI_getbuf() */
     58 #define GKI_RESTRICTED_POOL     1       /* Inaccessible pool to GKI_getbuf() */
     59 
     60 /***********************************************************************
     61 ** Function prototypes
     62 */
     63 
     64 /* To get and release buffers, change owner and get size
     65 */
     66 void    GKI_freebuf (void *);
     67 void   *GKI_getbuf (UINT16);
     68 UINT16  GKI_get_buf_size (void *);
     69 void   *GKI_getpoolbuf (UINT8);
     70 UINT16  GKI_poolcount (UINT8);
     71 UINT16  GKI_poolfreecount (UINT8);
     72 UINT16  GKI_poolutilization (UINT8);
     73 
     74 
     75 /* User buffer queue management
     76 */
     77 void   *GKI_dequeue  (BUFFER_Q *);
     78 void    GKI_enqueue (BUFFER_Q *, void *);
     79 void   *GKI_getfirst (BUFFER_Q *);
     80 void   *GKI_getlast (BUFFER_Q *);
     81 void   *GKI_getnext (void *);
     82 void    GKI_init_q (BUFFER_Q *);
     83 UINT16  GKI_queue_length(BUFFER_Q *);
     84 BOOLEAN GKI_queue_is_empty(BUFFER_Q *);
     85 void   *GKI_remove_from_queue (BUFFER_Q *, void *);
     86 UINT16  GKI_get_pool_bufsize (UINT8);
     87 
     88 /* Timer management
     89 */
     90 void    GKI_delay(UINT32);
     91 
     92 /* Disable Interrupts, Enable Interrupts
     93 */
     94 void    GKI_enable(void);
     95 void    GKI_disable(void);
     96 
     97 /* os timer operation */
     98 UINT32 GKI_get_os_tick_count(void);
     99