/******************************************************************************
 *
 *  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_COMMON_H
#define GKI_COMMON_H

#include "gki.h"
#include "dyn_mem.h"

/* Task States: (For OSRdyTbl) */
#define TASK_DEAD       0   /* b0000 */
#define TASK_READY      1   /* b0001 */
#define TASK_WAIT       2   /* b0010 */
#define TASK_DELAY      4   /* b0100 */
#define TASK_SUSPEND    8   /* b1000 */


/********************************************************************
**  Internal Error codes
*********************************************************************/
#define GKI_ERROR_BUF_CORRUPTED         0xFFFF
#define GKI_ERROR_NOT_BUF_OWNER         0xFFFE
#define GKI_ERROR_FREEBUF_BAD_QID       0xFFFD
#define GKI_ERROR_FREEBUF_BUF_LINKED    0xFFFC
#define GKI_ERROR_SEND_MSG_BAD_DEST     0xFFFB
#define GKI_ERROR_SEND_MSG_BUF_LINKED   0xFFFA
#define GKI_ERROR_ENQUEUE_BUF_LINKED    0xFFF9
#define GKI_ERROR_DELETE_POOL_BAD_QID   0xFFF8
#define GKI_ERROR_BUF_SIZE_TOOBIG       0xFFF7
#define GKI_ERROR_BUF_SIZE_ZERO         0xFFF6
#define GKI_ERROR_ADDR_NOT_IN_BUF       0xFFF5
#define GKI_ERROR_OUT_OF_BUFFERS        0xFFF4
#define GKI_ERROR_GETPOOLBUF_BAD_QID    0xFFF3
#define GKI_ERROR_TIMER_LIST_CORRUPTED  0xFFF2


/********************************************************************
**  Misc constants
*********************************************************************/

/********************************************************************
**  Buffer Management Data Structures
*********************************************************************/

typedef struct _buffer_hdr
{
    struct _buffer_hdr *p_next;   /* next buffer in the queue */
    uint8_t   q_id;                 /* id of the queue */
    uint8_t   task_id;              /* task which allocated the buffer*/
    uint8_t   status;               /* FREE, UNLINKED or QUEUED */
    uint8_t   Type;
} BUFFER_HDR_T;

typedef struct _free_queue
{
    BUFFER_HDR_T *p_first;      /* first buffer in the queue */
    BUFFER_HDR_T *p_last;       /* last buffer in the queue */
    uint16_t         size;          /* size of the buffers in the pool */
    uint16_t         total;         /* toatal number of buffers */
    uint16_t         cur_cnt;       /* number of  buffers currently allocated */
    uint16_t         max_cnt;       /* maximum number of buffers allocated at any time */
} FREE_QUEUE_T;


/* Buffer related defines
*/
#define ALIGN_POOL(pl_size)  ( (((pl_size) + 3) / sizeof(uint32_t)) * sizeof(uint32_t))
#define BUFFER_HDR_SIZE     (sizeof(BUFFER_HDR_T))                  /* Offset past header */
#define BUFFER_PADDING_SIZE (sizeof(BUFFER_HDR_T) + sizeof(uint32_t)) /* Header + Magic Number */
#define MAX_USER_BUF_SIZE   ((uint16_t)0xffff - BUFFER_PADDING_SIZE)  /* pool size must allow for header */
#define MAGIC_NO            0xDDBADDBA

#define BUF_STATUS_FREE     0
#define BUF_STATUS_UNLINKED 1
#define BUF_STATUS_QUEUED   2

// btla-specific ++
#define GKI_USE_DEFERED_ALLOC_BUF_POOLS
// btla-specific --

/* Exception related structures (Used in debug mode only)
*/
#if (GKI_DEBUG == TRUE)
typedef struct
{
    uint16_t  type;
    uint8_t   taskid;
    uint8_t   msg[GKI_MAX_EXCEPTION_MSGLEN];
} EXCEPTION_T;
#endif


/* Put all GKI variables into one control block
*/
typedef struct
{
    /* Task management variables
    */
    /* The stack and stack size are not used on Windows
    */
    // btla-specific ++
    #if (!defined GKI_USE_DEFERED_ALLOC_BUF_POOLS && (GKI_USE_DYNAMIC_BUFFERS == FALSE))
    // btla-specific --
    #if (GKI_NUM_FIXED_BUF_POOLS > 0)
    uint8_t bufpool0[(ALIGN_POOL(GKI_BUF0_SIZE) + BUFFER_PADDING_SIZE) * GKI_BUF0_MAX];
    #endif

    #if (GKI_NUM_FIXED_BUF_POOLS > 1)
    uint8_t bufpool1[(ALIGN_POOL(GKI_BUF1_SIZE) + BUFFER_PADDING_SIZE) * GKI_BUF1_MAX];
    #endif

    #if (GKI_NUM_FIXED_BUF_POOLS > 2)
    uint8_t bufpool2[(ALIGN_POOL(GKI_BUF2_SIZE) + BUFFER_PADDING_SIZE) * GKI_BUF2_MAX];
    #endif

    #if (GKI_NUM_FIXED_BUF_POOLS > 3)
    uint8_t bufpool3[(ALIGN_POOL(GKI_BUF3_SIZE) + BUFFER_PADDING_SIZE) * GKI_BUF3_MAX];
    #endif

    #if (GKI_NUM_FIXED_BUF_POOLS > 4)
    uint8_t bufpool4[(ALIGN_POOL(GKI_BUF4_SIZE) + BUFFER_PADDING_SIZE) * GKI_BUF4_MAX];
    #endif

    #if (GKI_NUM_FIXED_BUF_POOLS > 5)
    uint8_t bufpool5[(ALIGN_POOL(GKI_BUF5_SIZE) + BUFFER_PADDING_SIZE) * GKI_BUF5_MAX];
    #endif

    #if (GKI_NUM_FIXED_BUF_POOLS > 6)
    uint8_t bufpool6[(ALIGN_POOL(GKI_BUF6_SIZE) + BUFFER_PADDING_SIZE) * GKI_BUF6_MAX];
    #endif

    #if (GKI_NUM_FIXED_BUF_POOLS > 7)
    uint8_t bufpool7[(ALIGN_POOL(GKI_BUF7_SIZE) + BUFFER_PADDING_SIZE) * GKI_BUF7_MAX];
    #endif

    #if (GKI_NUM_FIXED_BUF_POOLS > 8)
    uint8_t bufpool8[(ALIGN_POOL(GKI_BUF8_SIZE) + BUFFER_PADDING_SIZE) * GKI_BUF8_MAX];
    #endif

    #if (GKI_NUM_FIXED_BUF_POOLS > 9)
    uint8_t bufpool9[(ALIGN_POOL(GKI_BUF9_SIZE) + BUFFER_PADDING_SIZE) * GKI_BUF9_MAX];
    #endif

    #if (GKI_NUM_FIXED_BUF_POOLS > 10)
    uint8_t bufpool10[(ALIGN_POOL(GKI_BUF10_SIZE) + BUFFER_PADDING_SIZE) * GKI_BUF10_MAX];
    #endif

    #if (GKI_NUM_FIXED_BUF_POOLS > 11)
    uint8_t bufpool11[(ALIGN_POOL(GKI_BUF11_SIZE) + BUFFER_PADDING_SIZE) * GKI_BUF11_MAX];
    #endif

    #if (GKI_NUM_FIXED_BUF_POOLS > 12)
    uint8_t bufpool12[(ALIGN_POOL(GKI_BUF12_SIZE) + BUFFER_PADDING_SIZE) * GKI_BUF12_MAX];
    #endif

    #if (GKI_NUM_FIXED_BUF_POOLS > 13)
    uint8_t bufpool13[(ALIGN_POOL(GKI_BUF13_SIZE) + BUFFER_PADDING_SIZE) * GKI_BUF13_MAX];
    #endif

    #if (GKI_NUM_FIXED_BUF_POOLS > 14)
    uint8_t bufpool14[(ALIGN_POOL(GKI_BUF14_SIZE) + BUFFER_PADDING_SIZE) * GKI_BUF14_MAX];
    #endif

    #if (GKI_NUM_FIXED_BUF_POOLS > 15)
    uint8_t bufpool15[(ALIGN_POOL(GKI_BUF15_SIZE) + BUFFER_PADDING_SIZE) * GKI_BUF15_MAX];
    #endif

    #else
    /* Definitions for dynamic buffer use */
    #if (GKI_NUM_FIXED_BUF_POOLS > 0)
    uint8_t *bufpool0;
    #endif

    #if (GKI_NUM_FIXED_BUF_POOLS > 1)
    uint8_t *bufpool1;
    #endif

    #if (GKI_NUM_FIXED_BUF_POOLS > 2)
    uint8_t *bufpool2;
    #endif

    #if (GKI_NUM_FIXED_BUF_POOLS > 3)
    uint8_t *bufpool3;
    #endif

    #if (GKI_NUM_FIXED_BUF_POOLS > 4)
    uint8_t *bufpool4;
    #endif

    #if (GKI_NUM_FIXED_BUF_POOLS > 5)
    uint8_t *bufpool5;
    #endif

    #if (GKI_NUM_FIXED_BUF_POOLS > 6)
    uint8_t *bufpool6;
    #endif

    #if (GKI_NUM_FIXED_BUF_POOLS > 7)
    uint8_t *bufpool7;
    #endif

    #if (GKI_NUM_FIXED_BUF_POOLS > 8)
    uint8_t *bufpool8;
    #endif

    #if (GKI_NUM_FIXED_BUF_POOLS > 9)
    uint8_t *bufpool9;
    #endif

    #if (GKI_NUM_FIXED_BUF_POOLS > 10)
    uint8_t *bufpool10;
    #endif

    #if (GKI_NUM_FIXED_BUF_POOLS > 11)
    uint8_t *bufpool11;
    #endif

    #if (GKI_NUM_FIXED_BUF_POOLS > 12)
    uint8_t *bufpool12;
    #endif

    #if (GKI_NUM_FIXED_BUF_POOLS > 13)
    uint8_t *bufpool13;
    #endif

    #if (GKI_NUM_FIXED_BUF_POOLS > 14)
    uint8_t *bufpool14;
    #endif

    #if (GKI_NUM_FIXED_BUF_POOLS > 15)
    uint8_t *bufpool15;
    #endif

    #endif

    uint8_t  *OSStack[GKI_MAX_TASKS];         /* pointer to beginning of stack */
    uint16_t  OSStackSize[GKI_MAX_TASKS];     /* stack size available to each task */


    int8_t   *OSTName[GKI_MAX_TASKS];         /* name of the task */

    uint8_t   OSRdyTbl[GKI_MAX_TASKS];        /* current state of the task */
    uint16_t  OSWaitEvt[GKI_MAX_TASKS];       /* events that have to be processed by the task */
    uint16_t  OSWaitForEvt[GKI_MAX_TASKS];    /* events the task is waiting for*/

    uint32_t  OSTicks;                        /* system ticks from start */
    uint32_t  OSIdleCnt;                      /* idle counter */
    int16_t   OSDisableNesting;               /* counter to keep track of interrupt disable nesting */
    int16_t   OSLockNesting;                  /* counter to keep track of sched lock nesting */
    int16_t   OSIntNesting;                   /* counter to keep track of interrupt nesting */

    /* Timer related variables
    */
    int32_t   OSTicksTilExp;      /* Number of ticks till next timer expires */
    int32_t   OSNumOrigTicks;     /* Number of ticks between last timer expiration to the next one */

    int32_t   OSWaitTmr   [GKI_MAX_TASKS];  /* ticks the task has to wait, for specific events */

    /* Only take up space timers used in the system (GKI_NUM_TIMERS defined in target.h) */
    #if (GKI_NUM_TIMERS > 0)
    int32_t   OSTaskTmr0  [GKI_MAX_TASKS];
    int32_t   OSTaskTmr0R [GKI_MAX_TASKS];
    #endif

    #if (GKI_NUM_TIMERS > 1)
    int32_t   OSTaskTmr1  [GKI_MAX_TASKS];
    int32_t   OSTaskTmr1R [GKI_MAX_TASKS];
    #endif

    #if (GKI_NUM_TIMERS > 2)
    int32_t   OSTaskTmr2  [GKI_MAX_TASKS];
    int32_t   OSTaskTmr2R [GKI_MAX_TASKS];
    #endif

    #if (GKI_NUM_TIMERS > 3)
    int32_t   OSTaskTmr3  [GKI_MAX_TASKS];
    int32_t   OSTaskTmr3R [GKI_MAX_TASKS];
    #endif



    /* Buffer related variables
    */
    BUFFER_HDR_T    *OSTaskQFirst[GKI_MAX_TASKS][NUM_TASK_MBOX]; /* array of pointers to the first event in the task mailbox */
    BUFFER_HDR_T    *OSTaskQLast [GKI_MAX_TASKS][NUM_TASK_MBOX]; /* array of pointers to the last event in the task mailbox */

    /* Define the buffer pool management variables
    */
    FREE_QUEUE_T    freeq[GKI_NUM_TOTAL_BUF_POOLS];

    uint16_t   pool_buf_size[GKI_NUM_TOTAL_BUF_POOLS];
    uint16_t   pool_max_count[GKI_NUM_TOTAL_BUF_POOLS];
    uint16_t   pool_additions[GKI_NUM_TOTAL_BUF_POOLS];

    /* Define the buffer pool start addresses
    */
    uint8_t   *pool_start[GKI_NUM_TOTAL_BUF_POOLS];   /* array of pointers to the start of each buffer pool */
    uint8_t   *pool_end[GKI_NUM_TOTAL_BUF_POOLS];     /* array of pointers to the end of each buffer pool */
    uint16_t   pool_size[GKI_NUM_TOTAL_BUF_POOLS];    /* actual size of the buffers in a pool */

    /* Define the buffer pool access control variables */
    void        *p_user_mempool;                    /* User O/S memory pool */
    uint16_t      pool_access_mask;                   /* Bits are set if the corresponding buffer pool is a restricted pool */
    uint8_t       pool_list[GKI_NUM_TOTAL_BUF_POOLS]; /* buffer pools arranged in the order of size */
    uint8_t       curr_total_no_of_pools;             /* number of fixed buf pools + current number of dynamic pools */

    uint8_t     timer_nesting;                      /* flag to prevent timer interrupt nesting */

    #if (GKI_DEBUG == TRUE)
    uint16_t      ExceptionCnt;                       /* number of GKI exceptions that have happened */
    EXCEPTION_T Exception[GKI_MAX_EXCEPTION];
    #endif

} tGKI_COM_CB;


#ifdef __cplusplus
extern "C" {
#endif

/* Internal GKI function prototypes
*/
GKI_API extern uint8_t   gki_chk_buf_damage(void *);
extern uint8_t   gki_chk_buf_owner(void *);
extern void      gki_buffer_init(void);
extern void      gki_timers_init(void);
extern void      gki_adjust_timer_count(int32_t);

#ifdef GKI_USE_DEFERED_ALLOC_BUF_POOLS
extern void      gki_dealloc_free_queue(void);
#endif


/* Debug aids
*/
typedef void (*FP_PRINT)(char *, ...);

#if (GKI_DEBUG == TRUE)

typedef void (*PKT_PRINT)(uint8_t *, uint16_t);

extern void gki_print_task(FP_PRINT);
extern void gki_print_exception(FP_PRINT);
extern void gki_print_timer(FP_PRINT);
extern void gki_print_stack(FP_PRINT);
extern void gki_print_buffer(FP_PRINT);
extern void gki_print_buffer_statistics(FP_PRINT, int16_t);
GKI_API extern void gki_print_used_bufs(FP_PRINT, uint8_t);
extern void gki_dump(uint8_t *, uint16_t, FP_PRINT);
extern void gki_dump2(uint16_t *, uint16_t, FP_PRINT);
extern void gki_dump4(uint32_t *, uint16_t, FP_PRINT);

#endif

#ifdef __cplusplus
}
#endif

#endif
