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view src/g23m-gprs/llc/llc_uf.h @ 268:f2e52cab0a73

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abb_inth.c: check all interrupt causes, not just one The original code used if - else if - else if etc constructs, thus the first detected interrupt was the only one handled. However, Iota ITSTATREG is a clear-on-read register, thus if we only handle the first detected interrupt and skip checking the others, then the other interrupts will be lost, if more than one interrupt happened to occur in one ABB interrupt handling cycle - a form of rare race condition. Change the code to check all interrupts that were read in this cycle.
author Mychaela Falconia <falcon@freecalypso.org>
date Sun, 13 Jun 2021 18:17:53 +0000
parents fa8dc04885d8
children
line wrap: on
line source

/* 
+----------------------------------------------------------------------------- 
|  Project :  
|  Modul   :  
+----------------------------------------------------------------------------- 
|  Copyright 2002 Texas Instruments Berlin, AG 
|                 All rights reserved. 
| 
|                 This file is confidential and a trade secret of Texas 
|                 Instruments Berlin, AG 
|                 The receipt of or possession of this file does not convey 
|                 any rights to reproduce or disclose its contents or to 
|                 manufacture, use, or sell anything it may describe, in 
|                 whole, or in part, without the specific written consent of 
|                 Texas Instruments Berlin, AG. 
+----------------------------------------------------------------------------- 
|  Purpose :  Definitions for llc_uf.c 
+----------------------------------------------------------------------------- 
*/ 


#ifndef LLC_UF_H
#define LLC_UF_H


/*==== XID DEFINITIONS ======================================================*/

/*
 * XID parameter types
 */
#define XID_VERSION           0
#define XID_IOV_UI            1
#define XID_IOV_I             2
#define XID_T200              3
#define XID_N200              4
#define XID_N201_U            5
#define XID_N201_I            6
#define XID_MD                7
#define XID_MU                8
#define XID_KD                9
#define XID_KU                10
#define XID_LAYER_3           11
#define XID_RESET             12

#define XID_MAX_TYPE          XID_RESET

/*
 * XID parameter lengths in octets
 */
#define XID_VERSION_LEN       1
#define XID_IOV_UI_LEN        4
#define XID_IOV_I_LEN         4
#define XID_T200_LEN          2
#define XID_N200_LEN          1
#define XID_N201_U_LEN        2
#define XID_N201_I_LEN        2
#define XID_MD_LEN            2
#define XID_MU_LEN            2
#define XID_KD_LEN            1
#define XID_KU_LEN            1
/* no default length for layer 3 parameters */
#define XID_RESET_LEN         0

/*
 * XID parameter header lengths in octets
 */
#define XID_VERSION_HDR_LEN   1
#define XID_IOV_UI_HDR_LEN    2
#define XID_IOV_I_HDR_LEN     2
#define XID_T200_HDR_LEN      1
#define XID_N200_HDR_LEN      1
#define XID_N201_U_HDR_LEN    1
#define XID_N201_I_HDR_LEN    1
#define XID_MD_HDR_LEN        1
#define XID_MU_HDR_LEN        1
#define XID_KD_HDR_LEN        1
#define XID_KU_HDR_LEN        1
#define XID_LAYER_3_HDR_LEN   2
#define XID_RESET_HDR_LEN     1

/*
 * XID parameter ranges
 */
#define XID_VERSION_MIN       0u
#define XID_VERSION_MAX       15u
#define XID_IOV_UI_MIN        0u
#define XID_IOV_UI_MAX        4294967295uL        /* actually: 2 ^ 32 - 1 */
#define XID_IOV_I_MIN         0u
#define XID_IOV_I_MAX         4294967295uL        /* actually: 2 ^ 32 - 1 */
#define XID_T200_MIN          1u                   /* units: 0.1 seconds */
#define XID_T200_MAX          4095u
#define XID_N200_MIN          1u
#define XID_N200_MAX          15u
#ifdef _SIMULATION_
#ifdef MULTI_LAYER
                                                  /* units: octets */
#define XID_N201_U_MIN        (llc_data->current_sapi EQ LL_SAPI_1 ? 400u :    \
                               llc_data->current_sapi EQ LL_SAPI_7 ? 270u : 59u)
#else
#define XID_N201_U_MIN        (llc_data->current_sapi EQ LL_SAPI_1 ? 400u :    \
                               llc_data->current_sapi EQ LL_SAPI_7 ? 270u : 140u)

#endif /* MULTI_LAYER */
#else
                                                  /* units: octets */
#define XID_N201_U_MIN        (llc_data->current_sapi EQ LL_SAPI_1 ? 400u :    \
                               llc_data->current_sapi EQ LL_SAPI_7 ? 270u : 140u)
#endif /* SIMULATION */
#define XID_N201_U_MAX        1520u
#ifdef _SIMULATION_
#ifdef MULTI_LAYER
#define XID_N201_I_MIN        59u                 /* units: octets */
#else
#define XID_N201_I_MIN        140u                 /* units: octets */

#endif /* MULTI_LAYER */
#else
#define XID_N201_I_MIN        140u                 /* units: octets */
#endif /* SIMULATION */
#define XID_N201_I_MAX        1520u
#define XID_MD_OFF            0u                   
#define XID_MD_MIN            9u                   /* units: 16 octets */
#define XID_MD_MAX            24320u
#define XID_MU_OFF            0u                   
#define XID_MU_MIN            9u                   /* units: 16 octets */
#define XID_MU_MAX            24320u
#define XID_KD_MIN            1u                   /* units: frames */
#define XID_KD_MAX            255u
#define XID_KU_MIN            1u                   /* units: frames */
#define XID_KU_MAX            255u

/*
 * Conditions for checking correct sense of negotiation.
 */
#define XID_SENSE_UP          >
#define XID_SENSE_DOWN        <


/*==== FUNCTION DECLARATIONS ================================================*/

EXTERN void   u_init                   (void);
EXTERN void   u_init_sapi              (void);

EXTERN void   u_build_u_frame          
(
#ifdef LL_DESC
  T_desc_list3 *desc_list3,
#else
  T_sdu *sdu, 
#endif
  T_BIT cr_bit, 
  UBYTE sapi, 
  T_BIT pf_bit, 
  T_COMMAND command
);

EXTERN BOOL   u_check_xid              (T_sdu *sdu, 
                                        T_BIT cr_bit, 
                                        T_COMMAND command);
EXTERN void   u_eval_xid               (T_BIT cr_bit,
                                        BOOL *reset_received,
                                        BOOL *xid_ind);

EXTERN void   u_insert_xid             
(
#ifdef LL_DESC
  T_desc_list3 *desc_list3,
#else
  T_sdu *sdu,
#endif
  T_BIT cr_bit
);

EXTERN void   u_insert_frmr_information 
(
#ifndef LL_DESC
  T_sdu *sdu,
#else
  T_desc_list3 *desc_list3,
#endif
  T_LL_UNITDATA_IND *frame,
  T_PDU_TYPE pdu_type,
  USHORT ctrl_length,
  T_FRAME_NUM vs,
  T_FRAME_NUM vr,
  T_BIT cr_bit,
  UBYTE reason
);

EXTERN void   u_send_sabm              (void);
EXTERN void   u_send_disc              (void);

#ifdef REL99 
  EXTERN void   sig_tx_u_send_null       (UBYTE cause);
#endif /* REL99 */

EXTERN void   u_send_ua                (T_BIT pf_bit,
                                        BOOL include_xid);
EXTERN void   u_send_dm                (T_BIT pf_bit);
EXTERN void   u_send_frmr              (T_LL_UNITDATA_IND *frame,
                                        T_PDU_TYPE pdu_type,
                                        USHORT ctrl_length,
                                        T_FRAME_NUM vs,
                                        T_FRAME_NUM vr,
                                        T_BIT cr_bit,
                                        UBYTE reason);
#ifdef CC_CONCEPT
EXTERN void   u_send_llgmm_status_ind  (USHORT error_cause);
EXTERN void   u_send_ll_status_ind     (USHORT cause);
EXTERN void   u_send_ll_release_ind    (USHORT cause);
#else
EXTERN void   u_send_llgmm_status_ind  (UBYTE error_cause);
EXTERN void   u_send_ll_status_ind     (UBYTE cause);
EXTERN void   u_send_ll_release_ind    (UBYTE cause);
#endif

EXTERN void   u_send_ll_release_cnf    (void);
EXTERN void   u_send_ll_xid_cnf        (void);
EXTERN void   u_send_ll_establish_ind  (void);
EXTERN void   u_send_ll_establish_cnf  (void);
EXTERN void   u_send_ll_xid_ind        (void);
EXTERN void   u_send_xid               (T_BIT cr_bit);
EXTERN void   u_tag_xid_parameters     (T_BIT cr_bit, BOOL send_ack_para);
EXTERN void   u_handle_optimization    (void);

EXTERN void   u_handle_mX_zero_rsp     (USHORT mX_req, USHORT* n201_i, 
                                        USHORT mX,     USHORT  mX_max,    
                                        UBYTE* kX,     UBYTE   kX_min, 
                                        UBYTE  kX_type );
EXTERN void   u_check_requested_xid    (void);

#endif /* !LLC_UF_H */