FreeCalypso > hg > fc-tourmaline
view src/nucleus/dmf.c @ 303:f76436d19a7a default tip
!GPRS config: fix long-standing AT+COPS chance hanging bug
There has been a long-standing bug in FreeCalypso going back years:
sometimes in the AT command bring-up sequence of an ACI-only MS,
the AT+COPS command would produce only a power scan followed by
cessation of protocol stack activity (only L1 ADC traces), instead
of the expected network search sequence. This behaviour was seen
in different FC firmware versions going back to Citrine, and seemed
to follow some law of chance, not reliably repeatable.
This bug has been tracked down and found to be specific to !GPRS
configuration, stemming from our TCS2/TCS3 hybrid and reconstruction
of !GPRS support that was bitrotten in TCS3.2/LoCosto version.
ACI module psa_mms.c, needed only for !GPRS, was missing in the TCS3
version and had to be pulled from TCS2 - but as it turns out,
there is a new field in the MMR_REG_REQ primitive that needs to be
set correctly, and that psa_mms.c module is the place where this
initialization needed to be added.
| author | Mychaela Falconia <falcon@freecalypso.org> |
|---|---|
| date | Thu, 08 Jun 2023 08:23:37 +0000 |
| parents | 4e78acac3d88 |
| children |
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/*************************************************************************/ /* */ /* Copyright Mentor Graphics Corporation 2002 */ /* All Rights Reserved. */ /* */ /* THIS WORK CONTAINS TRADE SECRET AND PROPRIETARY INFORMATION WHICH IS */ /* THE PROPERTY OF MENTOR GRAPHICS CORPORATION OR ITS LICENSORS AND IS */ /* SUBJECT TO LICENSE TERMS. */ /* */ /*************************************************************************/ /*************************************************************************/ /* */ /* FILE NAME VERSION */ /* */ /* dmf.c Nucleus PLUS 1.14 */ /* */ /* COMPONENT */ /* */ /* DM - Dynamic Memory Management */ /* */ /* DESCRIPTION */ /* */ /* This file contains routines to obtain facts about the Dynamic */ /* Memory Management component. */ /* */ /* DATA STRUCTURES */ /* */ /* None */ /* */ /* FUNCTIONS */ /* */ /* DMF_Established_Memory_Pools Number of dynamic pools */ /* DMF_Memory_Pool_Pointers Build memory pool pointer */ /* list */ /* DMF_Memory_Pool_Information Retrieve memory pool info */ /* */ /* DEPENDENCIES */ /* */ /* cs_extr.h Common Service functions */ /* tc_extr.h Thread Control functions */ /* dm_extr.h Partition functions */ /* hi_extr.h History functions */ /* */ /* HISTORY */ /* */ /* DATE REMARKS */ /* */ /* 03-01-1994 Initial version of partition fact */ /* service file, version 1.1 */ /* */ /* 03-18-1994 Verified version 1.1 */ /* 04-17-1996 updated to version 1.2 */ /* 11-18-1996 Protected Informational service */ /* from NULL Control Block pointers */ /* creating 1.2a. (SPR220) */ /* 03-24-1998 Released version 1.3. */ /* 03-26-1999 Released 1.11m (new release */ /* numbering scheme) */ /* 04-17-2002 Released version 1.13m */ /* 11-07-2002 Released version 1.14 */ /*************************************************************************/ #define NU_SOURCE_FILE #include "cs_extr.h" /* Common service functions */ #include "tc_extr.h" /* Thread control functions */ #include "dm_extr.h" /* Dynamic memory functions */ #include "hi_extr.h" /* History functions */ /* Define external inner-component global data references. */ extern CS_NODE *DMD_Created_Pools_List; extern UNSIGNED DMD_Total_Pools; extern TC_PROTECT DMD_List_Protect; /*************************************************************************/ /* */ /* FUNCTION */ /* */ /* DMF_Established_Memory_Pools */ /* */ /* DESCRIPTION */ /* */ /* This function returns the current number of established */ /* memory pools. Pools previously deleted are no longer */ /* considered established. */ /* */ /* CALLED BY */ /* */ /* Application */ /* */ /* CALLS */ /* */ /* [TCT_Check_Stack] Stack checking function */ /* */ /* INPUTS */ /* */ /* None */ /* */ /* OUTPUTS */ /* */ /* DMD_Total_Pools Number of established */ /* dynamic memory pools */ /* */ /* HISTORY */ /* */ /* DATE REMARKS */ /* */ /* 03-01-1993 Created initial version 1.0 */ /* 04-19-1993 Verified version 1.0 */ /* 03-01-1994 Modified function interface, */ /* resulting in version 1.1 */ /* */ /* 03-18-1994 Verified version 1.1 */ /* */ /*************************************************************************/ UNSIGNED DMF_Established_Memory_Pools(VOID) { #ifdef NU_ENABLE_STACK_CHECK /* Call stack checking function to check for an overflow condition. */ TCT_Check_Stack(); #endif /* Return the number of established dynamic memory pools. */ return(DMD_Total_Pools); } /*************************************************************************/ /* */ /* FUNCTION */ /* */ /* DMF_Memory_Pool_Pointers */ /* */ /* DESCRIPTION */ /* */ /* This function builds a list of pool pointers, starting at */ /* the specified location. The number of pool pointers */ /* placed in the list is equivalent to the total number of */ /* pools or the maximum number of pointers specified in the */ /* call. */ /* */ /* CALLED BY */ /* */ /* Application */ /* */ /* CALLS */ /* */ /* [TCT_Check_Stack] Stack checking function */ /* TCT_Protect Protect created list */ /* TCT_Unprotect Release protection */ /* */ /* INPUTS */ /* */ /* pointer_list Pointer to the list area */ /* maximum_pointers Maximum number of pointers */ /* */ /* OUTPUTS */ /* */ /* pointers Number of memory pools */ /* placed in the list */ /* HISTORY */ /* */ /* DATE REMARKS */ /* */ /* 03-01-1993 Created initial version 1.0 */ /* 04-19-1993 Verified version 1.0 */ /* 08-09-1993 Corrected pointer retrieval */ /* loop, resulting in version 1.0a */ /* 08-09-1993 Verified version 1.0a */ /* 03-01-1994 Modified function interface, */ /* resulting in version 1.1 */ /* */ /* 03-18-1994 Verified version 1.1 */ /* */ /*************************************************************************/ UNSIGNED DMF_Memory_Pool_Pointers(NU_MEMORY_POOL **pointer_list, UNSIGNED maximum_pointers) { CS_NODE *node_ptr; /* Pointer to each PCB */ UNSIGNED pointers; /* Number of pointers in list*/ NU_SUPERV_USER_VARIABLES /* Switch to supervisor mode */ NU_SUPERVISOR_MODE(); #ifdef NU_ENABLE_STACK_CHECK /* Call stack checking function to check for an overflow condition. */ TCT_Check_Stack(); #endif /* Initialize the number of pointers returned. */ pointers = 0; /* Protect against access to the list of created memory pools. */ TCT_Protect(&DMD_List_Protect); /* Loop until all pool pointers are in the list or until the maximum list size is reached. */ node_ptr = DMD_Created_Pools_List; while ((node_ptr) && (pointers < maximum_pointers)) { /* Place the node into the destination list. */ *pointer_list++ = (NU_MEMORY_POOL *) node_ptr; /* Increment the pointers variable. */ pointers++; /* Position the node pointer to the next node. */ node_ptr = node_ptr -> cs_next; /* Determine if the pointer is at the head of the list. */ if (node_ptr == DMD_Created_Pools_List) /* The list search is complete. */ node_ptr = NU_NULL; } /* Release protection of the list of created pools. */ TCT_Unprotect(); /* Return to user mode */ NU_USER_MODE(); /* Return the number of pointers in the list. */ return(pointers); } /*************************************************************************/ /* */ /* FUNCTION */ /* */ /* DMF_Memory_Pool_Information */ /* */ /* DESCRIPTION */ /* */ /* This function returns information about the specified memory */ /* pool. However, if the supplied memory pool pointer is */ /* invalid, the function simply returns an error status. */ /* */ /* CALLED BY */ /* */ /* Application */ /* */ /* CALLS */ /* */ /* [TCT_Check_Stack] Stack checking function */ /* TCT_Protect Protect memory pool */ /* TCT_Unprotect Release protection */ /* */ /* INPUTS */ /* */ /* pool_ptr Pointer to the memory pool */ /* name Destination for the name */ /* start_address Destination for the starting */ /* memory address of the pool */ /* pool_size Destination for the pool's */ /* total size */ /* min_allocation Destination for the minimum */ /* block allocation size */ /* available Destination for the available*/ /* number of bytes in pool */ /* suspend_type Destination for the type of */ /* suspension */ /* tasks_waiting Destination for the tasks */ /* waiting count */ /* first_task Destination for the pointer */ /* to the first task waiting */ /* */ /* OUTPUTS */ /* */ /* NU_SUCCESS If a valid pool pointer */ /* is supplied */ /* NU_INVALID_POOL If pool pointer invalid */ /* */ /* HISTORY */ /* */ /* DATE REMARKS */ /* */ /* 03-01-1993 Created initial version 1.0 */ /* 04-19-1993 Verified version 1.0 */ /* 03-01-1994 Modified function interface, */ /* resulting in version 1.1 */ /* */ /* 03-18-1994 Verified version 1.1 */ /* 11-18-1996 Corrected SPR220. */ /* */ /*************************************************************************/ STATUS DMF_Memory_Pool_Information(NU_MEMORY_POOL *pool_ptr, CHAR *name, VOID **start_address, UNSIGNED *pool_size, UNSIGNED *min_allocation, UNSIGNED *available, OPTION *suspend_type, UNSIGNED *tasks_waiting, NU_TASK **first_task) { DM_PCB *pool; /* Pool control block ptr */ INT i; /* Working integer variable */ STATUS completion; /* Completion status */ NU_SUPERV_USER_VARIABLES /* Switch to supervisor mode */ NU_SUPERVISOR_MODE(); /* Move input pool pointer into internal pointer. */ pool = (DM_PCB *) pool_ptr; #ifdef NU_ENABLE_STACK_CHECK /* Call stack checking function to check for an overflow condition. */ TCT_Check_Stack(); #endif /* Determine if this memory pool id is valid. */ if ((pool != NU_NULL) && (pool -> dm_id == DM_DYNAMIC_ID)) { /* Setup protection of the memory pool. */ TCT_Protect(&(pool -> dm_protect)); /* The memory pool pointer is valid. Reflect this in the completion status and fill in the actual information. */ completion = NU_SUCCESS; /* Copy the memory pool's name. */ for (i = 0; i < NU_MAX_NAME; i++) *name++ = pool -> dm_name[i]; /* Determine the suspension type. */ if (pool -> dm_fifo_suspend) *suspend_type = NU_FIFO; else *suspend_type = NU_PRIORITY; /* Retrieve information directly out of the control structure. */ *start_address = pool -> dm_start_address; *pool_size = pool -> dm_pool_size; *min_allocation = pool -> dm_min_allocation; *available = pool -> dm_available; /* Retrieve the number of tasks waiting and the pointer to the first task waiting. */ *tasks_waiting = pool -> dm_tasks_waiting; if (pool -> dm_suspension_list) /* There is a task waiting. */ *first_task = (NU_TASK *) (pool -> dm_suspension_list) -> dm_suspended_task; else /* There are no tasks waiting. */ *first_task = NU_NULL; /* Release protection of the memory pool. */ TCT_Unprotect(); } else /* Indicate that the memory pool pointer is invalid. */ completion = NU_INVALID_POOL; /* Return to user mode */ NU_USER_MODE(); /* Return the appropriate completion status. */ return(completion); }