FreeCalypso > hg > fc-tourmaline

annotate src/gpf/osl/os_sem_ir.c @ 303:f76436d19a7a default tip

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!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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4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
Mychaela Falconia <falcon@freecalypso.org>
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1 /*
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
Mychaela Falconia <falcon@freecalypso.org>
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2 * This C module is a reconstruction based on the disassembly of
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
Mychaela Falconia <falcon@freecalypso.org>
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3 * os_sem.obj in frame_na7_db_ir.lib from the Leonardo package.
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
Mychaela Falconia <falcon@freecalypso.org>
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4 */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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5
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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6 /* set of included headers from COFF symtab: */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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7 #include <stdio.h>
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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8 #include <string.h>
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
Mychaela Falconia <falcon@freecalypso.org>
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9 #include "nucleus.h"
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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10 #include "typedefs.h"
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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11 #include "os.h"
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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12 #include "gdi.h"
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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13 #include "os_types.h"
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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14 #include "os_glob.h"
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15
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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16 extern T_OS_SEM_TABLE_ENTRY SemTable[];
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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17 extern unsigned os_time_to_tick_multiplier;
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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18
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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19 int
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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20 ReleaseSemaphoreCB(NU_SEMAPHORE *SemCB)
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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21 {
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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22 if (NU_Release_Semaphore(SemCB) == NU_SUCCESS)
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23 return(OS_OK);
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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24 else
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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25 return(OS_ERROR);
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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26 }
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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27
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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28 GLOBAL LONG
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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29 os_ReleaseSemaphore(OS_HANDLE TaskHandle, OS_HANDLE SemHandle)
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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30 {
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31 if (NU_Release_Semaphore(&SemTable[SemHandle].SemCB) == NU_SUCCESS)
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32 return(OS_OK);
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33 else
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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34 return(OS_ERROR);
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35 }
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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36
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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37 int
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38 ObtainSemaphoreCB(NU_SEMAPHORE *SemCB, ULONG Timeout, USHORT wait_check)
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39 {
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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40 UNSIGNED nu_timeout;
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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41 STATUS sts;
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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42 int ret;
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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43
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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44 ret = OS_OK;
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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45 if (Timeout != OS_SUSPEND)
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46 nu_timeout = TIME_TO_SYSTEM_TICKS(Timeout);
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47 else if (wait_check == 1)
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48 nu_timeout = 1;
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49 else
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50 nu_timeout = NU_SUSPEND;
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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51 for (;;) {
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
Mychaela Falconia <falcon@freecalypso.org>
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52 sts = NU_Obtain_Semaphore(SemCB, nu_timeout);
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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53 switch (sts) {
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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54 case NU_SUCCESS:
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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55 return(ret);
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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56 case NU_INVALID_SEMAPHORE:
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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57 return(OS_ERROR);
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58 case NU_INVALID_SUSPEND:
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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59 nu_timeout = 0;
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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60 continue;
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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61 case NU_TIMEOUT:
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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62 case NU_UNAVAILABLE:
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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63 if (nu_timeout == 1 && wait_check == 1) {
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64 nu_timeout = NU_SUSPEND;
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65 ret = OS_WAITED;
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66 continue;
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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67 }
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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68 return(OS_TIMEOUT);
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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69 default:
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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70 /*
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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71 * Disassembly reveals that the original code
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72 * has an endless loop here, the equivalent
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73 * of continue. My guess is that they simply
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74 * forgot the default case, and so control
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75 * falls onto the closing brace of the switch
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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76 * and then onto the closing brace of the for
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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77 * loop. But I prefer better error handling,
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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78 * hence the present addition. - Space Falcon
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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79 */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
Mychaela Falconia <falcon@freecalypso.org>
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80 return(OS_ERROR);
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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81 }
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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82 }
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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83 }
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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84
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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85 GLOBAL LONG
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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86 os_ObtainSemaphore(OS_HANDLE TaskHandle, OS_HANDLE SemHandle, ULONG Timeout)
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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87 {
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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88 if (SemHandle > MaxSemaphores)
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89 return(OS_ERROR);
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90 return ObtainSemaphoreCB(&SemTable[SemHandle].SemCB, Timeout, 0);
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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91 }