FreeCalypso > hg > fc-magnetite

annotate src/gpf2/osl/os_sem_ir.c @ 547:c3f2f79dc5b8

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l1_rf12.c compiled-in default RF band tables: a round of cleanup * Uncalibrated default g_magic values changed from old Clara RF numbers (yes, Clara, not even Leonardo) to the approximately correct value for our current hw; * Uncalibrated default Rx and Tx channel calibration tables providing neutral correction values: fixed bogus ARFCNs from blind copy-n-paste between different bands; * Restored #if (ORDER2_TX_TEMP_CAL==1) in the Tx temperature compensation tables; * Fully rewrote the big comment before these rf_XXX structures to reflect the current situation. This change is part of the larger transition in FreeCalypso from reverse to forward engineering, from reconstruction of lost original bits to ongoing forward development and maintenance.
author Mychaela Falconia <falcon@freecalypso.org>
date Sat, 17 Nov 2018 19:57:34 +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 }