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annotate src/gpf2/osl/os_sem_ir.c @ 638:cab2f315827e

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FFS dev.c: added Spansion PL032J to the "generic" table With the discovery of first GTM900 and then Tango, it now appears that Openmoko was not the only manuf after all who kept TI's TCS211 firmware largely intact (as opposed to changing it beyond all recognition like Compal, Chi-Mei and BenQ did), thus we are now getting new "alien" targets on which we reuse the original manuf's FFS with IMEI and RF calibration tables as if it were native. On these targets we use the original device table for FFS, even though we previously thought that it would never apply to any target other than dsample, leonardo and gtamodem. We have previously added Samsung K5L33xxCAM (a new kind of multi-ID device) to the generic table to support its use in Huawei GTM900-B modules; now we got news that some slightly older GTM900-B specimen used S71PL032J instead, so we are now adding PL032J as well.
author Mychaela Falconia <falcon@freecalypso.org>
date Thu, 30 Jan 2020 17:45:48 +0000
parents 094ecae40880
children
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1 /*
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2 * This C module is a reconstruction based on the disassembly of
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3 * os_sem.obj in frame_na7_db_ir.lib from the Leonardo package.
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4 */
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5
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6 /* set of included headers from COFF symtab: */
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7 #include <stdio.h>
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8 #include <string.h>
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9 #include "nucleus.h"
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10 #include "typedefs.h"
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11 #include "os.h"
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12 #include "gdi.h"
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13 #include "os_types.h"
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14 #include "os_glob.h"
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15
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16 extern T_OS_SEM_TABLE_ENTRY SemTable[];
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17 extern unsigned os_time_to_tick_multiplier;
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18
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19 int
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20 ReleaseSemaphoreCB(NU_SEMAPHORE *SemCB)
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21 {
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22 if (NU_Release_Semaphore(SemCB) == NU_SUCCESS)
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23 return(OS_OK);
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24 else
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25 return(OS_ERROR);
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26 }
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27
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28 GLOBAL LONG
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29 os_ReleaseSemaphore(OS_HANDLE TaskHandle, OS_HANDLE SemHandle)
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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
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34 return(OS_ERROR);
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35 }
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36
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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 {
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40 UNSIGNED nu_timeout;
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41 STATUS sts;
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42 int ret;
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43
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44 ret = OS_OK;
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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;
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51 for (;;) {
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52 sts = NU_Obtain_Semaphore(SemCB, nu_timeout);
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53 switch (sts) {
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54 case NU_SUCCESS:
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55 return(ret);
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56 case NU_INVALID_SEMAPHORE:
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57 return(OS_ERROR);
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58 case NU_INVALID_SUSPEND:
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59 nu_timeout = 0;
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60 continue;
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61 case NU_TIMEOUT:
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62 case NU_UNAVAILABLE:
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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;
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67 }
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68 return(OS_TIMEOUT);
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69 default:
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70 /*
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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
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76 * and then onto the closing brace of the for
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77 * loop. But I prefer better error handling,
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78 * hence the present addition. - Space Falcon
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79 */
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80 return(OS_ERROR);
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81 }
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82 }
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83 }
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84
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85 GLOBAL LONG
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86 os_ObtainSemaphore(OS_HANDLE TaskHandle, OS_HANDLE SemHandle, ULONG Timeout)
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87 {
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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);
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91 }