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view src/g23m-gprs/upm/upm_link_control.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
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/*----------------------------------------------------------------------------
|  Project :  3G PS
|  Module  :  UPM
+-----------------------------------------------------------------------------
|             Copyright 2003 Texas Instruments.
|             All rights reserved. 
| 
|             This file is confidential and a trade secret of Texas 
|             Instruments .
|             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. 
+-----------------------------------------------------------------------------
| Purpose:    Link Control state machine definitions in the UPM entity.
|             For design details, see:
|             8010.939 UPM Detailed Specification
+---------------------------------------------------------------------------*/

/*==== DECLARATION CONTROL =================================================*/

#ifndef _UPM_LINK_CONTROL_H
#define _UPM_LINK_CONTROL_H

/*==== INCLUDES =============================================================*/

/*==== CONSTS ===============================================================*/

/*==== TYPES ================================================================*/

typedef enum
{
  /* Incoming primitives */
  UPM_P_SM_ACTIVATE_STARTED_IND,
  UPM_P_SM_ACTIVATE_IND,
  UPM_P_SM_DEACTIVATE_IND,
  UPM_P_SM_MODIFY_IND,
  /* Events from DTI Control */
  UPM_I_LINK_DTI_CLOSED,
  /* Events from RAB Control */
  UPM_I_RAB_ESTABLISHED,
  UPM_I_RAB_RELEASED,
  /* Events from SNDCP Control */
  UPM_I_SNDCP_LLC_LINK_ESTABLISHED,
  UPM_I_SNDCP_LLC_LINK_MODIFIED,
  UPM_I_SNDCP_LLC_LINK_RELEASED,
  /* Events from RAT Change Control */
  UPM_I_LINK_RAT_CHANGED,
  /* Number of events */
  UPM_LINK_CONTROL_NUMBER_OF_EVENTS
} T_UPM_LINK_CONTROL_EVENT;

typedef enum
{
  UPM_LINK_RELEASED,
#ifdef TI_UMTS
  UPM_LINK_ESTABLISHING_RAB,
  UPM_LINK_AWAITING_ACTIVATE_UMTS,
  UPM_LINK_RAB_ESTABLISHED,
  UPM_LINK_RELEASING_RAB,
#endif /* TI_UMTS */
#ifdef TI_DUAL_MODE
  UPM_LINK_COMPLETING_RAT_CHANGE_TO_GSM,
  UPM_LINK_COMPLETING_RAT_CHANGE_TO_UMTS_INITIAL,
#endif /* TI_DUAL_MODE */
#ifdef TI_GPRS
  UPM_LINK_AWAITING_ACTIVATE_GSM,
  UPM_LINK_ESTABLISHING_LLC_LINK,
  UPM_LINK_LLC_LINK_ESTABLISHED,
  UPM_LINK_RELEASING_LLC_LINK,
#endif /* TI_GPRS */
  UPM_LINK_CONTROL_NUMBER_OF_STATES
} T_UPM_LINK_CONTROL_STATE;

/*==== EXPORTS ==============================================================*/
extern void upm_link_control_init(struct T_CONTEXT_DATA *ptr_context_data);

extern void upm_link_control_exit(struct T_CONTEXT_DATA *ptr_context_data);

extern void upm_link_control(struct T_CONTEXT_DATA *ptr_context_data,
			     T_UPM_LINK_CONTROL_EVENT event,
			     /*@null@*/ void *data);

extern BOOL upm_is_link_released(struct T_CONTEXT_DATA *ptr_context_data);

extern void upm_link_dispatch_sm_deactivate_ind(T_SM_DEACTIVATE_IND *);

#endif /* _UPM_LINK_CONTROL_H */
/*==== END OF FILE ==========================================================*/