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/******************************************************************************
*
* Copyright (C) 1999-2012 Broadcom Corporation
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
******************************************************************************/
#ifndef GKI_INT_H
#define GKI_INT_H
#include "gki_common.h"
#include <pthread.h>
#include <sys/prctl.h>
/**********************************************************************
** OS specific definitions
*/
/* The base priority used for pthread based GKI task. below value is to keep it retro compatible.
* It is recommended to use (GKI_MAX_TASKS+3), this will assign real time priorities GKI_MAX_TASKS-
* task_id -2 to the thread */
#ifndef GKI_LINUX_BASE_PRIORITY
#define GKI_LINUX_BASE_PRIORITY 30
#endif
/* The base policy used for pthread based GKI task. the sched defines are defined here to avoid undefined values due
* to missing header file, see pthread functions! Overall it is recommend however to use SCHED_NOMRAL */
#define GKI_SCHED_NORMAL 0
#define GKI_SCHED_FIFO 1
#define GKI_SCHED_RR 2
#ifndef GKI_LINUX_BASE_POLICY
#define GKI_LINUX_BASE_POLICY GKI_SCHED_NORMAL
#endif
/* GKI timer bases should use GKI_SCHED_FIFO to ensure the least jitter possible */
#ifndef GKI_LINUX_TIMER_POLICY
#define GKI_LINUX_TIMER_POLICY GKI_SCHED_FIFO
#endif
/* the GKI_timer_update() thread should have the highest real time priority to ensue correct
* timer expiry.
*/
#ifndef GKI_LINUX_TIMER_TICK_PRIORITY
#define GKI_LINUX_TIMER_TICK_PRIORITY GKI_LINUX_BASE_PRIORITY+2
#endif
/* the AV timer should preferably run above the gki timer tick to ensure precise AV timing
* If you observe AV jitter under have load you may increase this one */
#ifndef GKI_LINUX_AV_TIMER_PRIORITY
#define GKI_LINUX_AV_TIMER_PRIORITY GKI_LINUX_BASE_PRIORITY+3
#endif
/* defines by how much the nice value of the PROCESS should be changed. Values allowed:
* -19 to +19. a negative value give higher priority to btld compared to the default nice value
* of 20. in case of SCHED_NORMAL, a level of -5 should give a good btld/bt performance.
* In case of real time scheduling, leave default value.
*/
#ifndef GKI_LINUX_DEFAULT_NICE_INC
#define GKI_LINUX_DEFAULT_NICE_INC -7
#endif
typedef struct
{
pthread_mutex_t GKI_mutex;
pthread_t thread_id[GKI_MAX_TASKS];
pthread_mutex_t thread_evt_mutex[GKI_MAX_TASKS];
pthread_cond_t thread_evt_cond[GKI_MAX_TASKS];
pthread_mutex_t thread_timeout_mutex[GKI_MAX_TASKS];
pthread_cond_t thread_timeout_cond[GKI_MAX_TASKS];
int no_timer_suspend; /* 1: no suspend, 0 stop calling GKI_timer_update() */
pthread_mutex_t gki_timer_mutex;
pthread_cond_t gki_timer_cond;
#if (GKI_DEBUG == TRUE)
pthread_mutex_t GKI_trace_mutex;
#endif
} tGKI_OS;
/* condition to exit or continue GKI_run() timer loop */
#define GKI_TIMER_TICK_RUN_COND 1
#define GKI_TIMER_TICK_STOP_COND 0
extern void gki_system_tick_start_stop_cback(BOOLEAN start);
/* Contains common control block as well as OS specific variables */
typedef struct
{
tGKI_OS os;
tGKI_COM_CB com;
} tGKI_CB;
#ifdef __cplusplus
extern "C" {
#endif
#if GKI_DYNAMIC_MEMORY == FALSE
GKI_API extern tGKI_CB gki_cb;
#else
GKI_API extern tGKI_CB *gki_cb_ptr;
#define gki_cb (*gki_cb_ptr)
#endif
#ifdef __cplusplus
}
#endif
#endif
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