FreeCalypso > hg > fc-magnetite

annotate src/gpf2/osl/os_pro_ir.c @ 662:8cd8fd15a095

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SIM speed enhancement re-enabled and made configurable TI's original code supported SIM speed enhancement, but Openmoko had it disabled, and OM's disabling of speed enhancement somehow caused certain SIM cards to start working which didn't work before (OM's bug #666). Because our FC community is much smaller in year 2020 than OM's community was in their day, we are not able to find one of those #666-affected SIMs, thus the real issue they had encountered remains elusive. Thus our solution is to re-enable SIM speed enhancement and simply wait for if and when someone runs into a #666-affected SIM once again. We provide a SIM_allow_speed_enhancement global variable that allows SIM speed enhancement to be enabled or disabled per session, and an /etc/SIM_spenh file in FFS that allows it to enabled or disabled on a non-volatile basis. SIM speed enhancement is now enabled by default.
author Mychaela Falconia <falcon@freecalypso.org>
date Sun, 24 May 2020 05:02:28 +0000
parents dfa8771e84b1
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_pro.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>
498
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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 VOID *TCD_Current_Thread;
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17 extern T_OS_TASK_TABLE_ENTRY TaskTable[];
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18 extern unsigned os_time_to_tick_multiplier;
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19
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20 #define OS_NU_TASK_MAGIC 0xdeafbeef
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21
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22 VOID
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23 os_TaskEntry(UNSIGNED TaskHandle, VOID *argv)
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24 {
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25 TaskTable[TaskHandle].TaskEntry(TaskHandle, 0);
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26 }
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27
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28 GLOBAL LONG
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29 os_SuspendTask(OS_HANDLE Caller, ULONG Time)
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30 {
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31 UNSIGNED SuspendTicks;
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32
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33 SuspendTicks = TIME_TO_SYSTEM_TICKS(Time);
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34 if (!SuspendTicks)
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35 SuspendTicks = 1;
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36 NU_Sleep(SuspendTicks);
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37 return (OS_OK);
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38 }
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39
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40 GLOBAL LONG
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41 os_ResumeTask(OS_HANDLE task_handle)
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42 {
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43 if (NU_Resume_Task(&TaskTable[task_handle].TaskCB.TCB) == NU_SUCCESS)
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44 return(OS_OK);
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45 else
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46 return(OS_ERROR);
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47 }
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48
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49 GLOBAL LONG
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50 os_Relinquish(void)
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51 {
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52 NU_Relinquish();
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53 return(OS_OK);
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54 }
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55
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56 GLOBAL OS_HANDLE
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57 os_MyHandle(void)
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58 {
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59 OS_NU_TASK *os_nu_task = (OS_NU_TASK *) TCD_Current_Thread;
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60
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61 if (os_nu_task && os_nu_task->magic_nr == OS_NU_TASK_MAGIC)
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62 return(os_nu_task->handle);
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63 else
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64 return(OS_NOTASK);
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65 }
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66
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67 GLOBAL LONG
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68 os_GetTaskName(OS_HANDLE Caller, OS_HANDLE TaskHandle, char *Name)
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69 {
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70 if (TaskHandle) {
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71 if (TaskHandle > MaxTasks || !TaskTable[TaskHandle].Name[0])
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72 return(OS_ERROR);
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73 strcpy(Name, TaskTable[TaskHandle].Name);
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74 } else if (TCD_Current_Thread) {
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75 NU_TASK *curtask = TCD_Current_Thread;
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76 strcpy(Name, curtask->tc_name);
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77 } else
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78 strcpy(Name, "ROOT");
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79 return(OS_OK);
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80 }
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81
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82 GLOBAL LONG
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83 os_DeferTask(OS_HANDLE task_handle, OS_TIME time)
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84 {
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85 if (NU_Suspend_Task(&TaskTable[task_handle].TaskCB.TCB) == NU_SUCCESS)
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86 return(OS_OK);
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87 else
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88 return(OS_ERROR);
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89 }
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90
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91 GLOBAL LONG
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92 os_CheckTaskStack(OS_HANDLE Handle)
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93 {
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94 #ifdef __GNUC__
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95 register void *sp asm("sp");
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96 #endif
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97
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98 if (*TaskTable[Handle].Stack != GUARD_PATTERN)
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99 return(OS_ERROR);
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100 #ifdef __GNUC__
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101 if (TCD_Current_Thread) {
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102 NU_TASK *curtask = TCD_Current_Thread;
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103 if (sp < curtask->tc_stack_start)
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104 return(OS_ERROR);
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105 }
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106 #endif
487
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107 return(OS_OK);
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108 }