FreeCalypso > hg > fc-tourmaline
view src/cs/services/cst/cst_stack.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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/******************************************************************************* * * CST_STACK.C * * Tasks and HISRs stacks monitoring. * * (C) Texas Instruments 2000 * ******************************************************************************/ #include <stdio.h> #include <string.h> #include "nucleus.h" #include "cs_defs.h" #include "tc_defs.h" // The following stack sizes are defined in int.s #define IRQ_STACK_SIZE 128 // Number of bytes in IRQ stack #define FIQ_STACK_SIZE 512 // Number of bytes in FIQ stack. #define SYSTEM_SIZE 1024 // Define the system stack size int vsi_o_trace (char * caller, unsigned long tclass, char * text); int vsi_t_sleep (char * caller, unsigned long tvalue); void CST_stack_trace() { int jndex, count, char_count; TC_TCB *head, *ptr; extern CS_NODE *TCD_Created_Tasks_List; extern CS_NODE *TCD_Created_HISRs_List; unsigned untouched; char *top_stack, *top, *bottom; extern char *TCT_System_Limit; char result[80]; char name[9]; vsi_o_trace("CST", 0x08, "Stack Info ..."); vsi_o_trace("CST", 0x08, " Name top bottom current untouched"); vsi_o_trace("CST", 0x08, "-------------------------------------------------"); for (jndex=0; jndex<2; jndex++) { // make use of TCB and HCB having same structure from beginning to past stack info if (jndex == 0) ptr = head = (TC_TCB *)TCD_Created_Tasks_List; else { ptr = head = (TC_TCB *)TCD_Created_HISRs_List; vsi_o_trace("CST", 0x08, "-------------------------------------------------"); } count = 0; do { untouched = 0; top_stack = (char *)ptr->tc_stack_start; while (*top_stack == 0xFE && top_stack <= (char *)ptr->tc_stack_end) { untouched++; top_stack++; } // Avoid to get a spurious character when tasks names are 8 characters long memcpy (name, ptr->tc_name, 8); name[8] = 0; sprintf(result, "%8s: %08x %08x %08x 0x%x", name, ptr->tc_stack_start, ptr->tc_stack_end, ptr->tc_stack_pointer, untouched); vsi_o_trace("CST", 0x08, result); vsi_t_sleep("",30); ptr = (TC_TCB*) ptr->tc_created.cs_next; } while (ptr != head && count++ < 50); //count is protection from infinite loops } // end of for (jndex=0; jndex<2; jndex++) // stack allocation algorithm from the int.s function INT_Initialize() // // \ \ // \----------\ // \ \ // \ \ // \ \ // \ SYSSTACK \ // \ \ // \ \ // \ \ // \----------\ // \ \ // \ IRQSTACK \ // \ \ // \----------\ // \ \ // \ \ // \ FIQSTACK \ // \ \ // \ \ // \----------\ // \ \ untouched = 0; top_stack = top = (char *)TCT_System_Limit; bottom = (char *) ((unsigned)TCT_System_Limit + SYSTEM_SIZE); while (*top_stack == 0xFE && top_stack <= bottom) { untouched++; top_stack++; } // "CST" being the current active task with its related CST_Stack, // the System Stack is unused (current sp_svc = System Stack Bottom) sprintf(result, "SYSSTACK: %08x %08x %08x 0x%x", top, bottom, bottom, // current sp_svc = System Stack Bottom untouched); vsi_o_trace("CST", 0x08, "-------------------------------------------------"); vsi_o_trace("CST", 0x08, result); vsi_t_sleep("",30); untouched = 0; top_stack = top = bottom + 4; bottom = (char *) ((unsigned)bottom + IRQ_STACK_SIZE); while (*top_stack == 0xFE && top_stack <= bottom) { untouched++; top_stack++; } // Since the processor is in supervisor mode (no IRQ & no FIQ), // current sp_irq = IRQ Stack bottom sprintf(result, "IRQSTACK: %08x %08x %08x 0x%x", top, bottom, bottom, // current sp_irq = IRQ Stack bottom untouched); vsi_o_trace("CST", 0x08, result); vsi_t_sleep("",30); untouched = 0; top_stack = top = bottom + 4; bottom = (char *) ((unsigned)bottom + FIQ_STACK_SIZE); while (*top_stack == 0xFE && top_stack <= bottom) { untouched++; top_stack++; } // Since the processor is in supervisor mode (no IRQ & no FIQ), // current sp_fiq = FIQ Stack bottom sprintf(result, "FIQSTACK: %08x %08x %08x 0x%x", top, bottom, bottom, // current sp_fiq = FIQ Stack bottom untouched); vsi_o_trace("CST", 0x08, result); vsi_o_trace("CST", 0x08, "-------------------------------------------------"); vsi_t_sleep("",30); }