annotate src/gpf2/osl/os_pro_ir.c @ 686:59f07d67eb45

luna target split into luna1 and luna2 luna1 is FC Luna based on iWOW DSK v4.0 or v5.0 motherboard luna2 is FC Luna based on FC Caramel2 MB
author Mychaela Falconia <falcon@freecalypso.org>
date Mon, 12 Oct 2020 18:51:24 +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>
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9 #include "nucleus.h"
487
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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 }