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annotate gsm-fw/gpf/osl/os_tim_fl.c @ 464:14d2a7f473c3

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OSL: os_tim_ir.c reconstruction by Das Signal
author Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
date Thu, 26 Jun 2014 03:23:29 +0000
parents 9cacd09e8ef3
children 5639b4fa8672
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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_tim.obj in frame_na7_db_fl.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 "gpfconf.h" /* FreeCalypso addition */
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9 #include "../../nucleus/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 UNSIGNED TMD_Timer;
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17 extern INT TMD_Timer_State;
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18
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19 extern T_OS_TIMER_ENTRY TimerTable[];
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20 extern T_OS_TIMER_TABLE_ENTRY *p_list[];
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21
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22 extern void os_Timeout(UNSIGNED t_handle);
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23 extern void timer_error(int err);
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24
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25 unsigned os_time_to_tick_multiplier = TIME_TO_TICK_TDMA_FRAME_MULTIPLIER;
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26 unsigned os_tick_to_time_multiplier = TICK_TO_TIME_TDMA_FRAME_MULTIPLIER;
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27
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28 unsigned t_start_ticks;
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29 T_OS_TIMER_TABLE_ENTRY * volatile t_running;
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30 int used_timers;
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31 int next_t_handle;
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32 int volatile t_list_access;
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33 int max_used_timers;
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34 NU_SEMAPHORE TimSemCB;
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35 NU_TIMER os_timer_cb;
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36
455
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37 GLOBAL LONG
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38 os_set_tick(int os_system_tick)
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39 {
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40 switch (os_system_tick) {
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41 case SYSTEM_TICK_TDMA_FRAME:
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42 os_time_to_tick_multiplier = TIME_TO_TICK_TDMA_FRAME_MULTIPLIER;
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43 os_tick_to_time_multiplier = TICK_TO_TIME_TDMA_FRAME_MULTIPLIER;
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44 return(OS_OK);
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45 case SYSTEM_TICK_10_MS:
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46 os_time_to_tick_multiplier = TIME_TO_TICK_10MS_MULTIPLIER;
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47 os_tick_to_time_multiplier = TICK_TO_TIME_10MS_MULTIPLIER;
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48 return(OS_OK);
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49 default:
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50 return(OS_ERROR);
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51 }
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52 }
456
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53
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54 GLOBAL LONG
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55 os_TimerInformation(USHORT Index, char *Buffer)
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56 {
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57 static int t_info_read;
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58
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59 if (t_info_read) {
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60 t_info_read = 0;
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61 return(OS_ERROR);
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62 }
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63 sprintf(Buffer, "Maximum %d of %d available timers running",
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64 max_used_timers, MaxSimultaneousTimer);
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65 t_info_read = 1;
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66 return(OS_OK);
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67 }
457
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68
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69 GLOBAL LONG
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70 os_TimInit(void)
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71 {
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72 int i;
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73
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74 if (NU_Create_Semaphore(&TimSemCB, "TIMSEM", 1, NU_PRIORITY)
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75 != NU_SUCCESS)
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76 return(OS_ERROR);
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77 if (NU_Create_Timer(&os_timer_cb, "OS_TIMER", os_Timeout, 0, 1, 0,
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78 NU_DISABLE_TIMER) != NU_SUCCESS)
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79 return(OS_ERROR);
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80 used_timers = 0;
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81 max_used_timers = 0;
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82 next_t_handle = 1;
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83 t_list_access = 0;
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84 t_start_ticks = 0;
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85 p_list[0] = 0;
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86 for (i = 1; i < MaxSimultaneousTimer; i++) {
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87 TimerTable[i].entry.status = 0;
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88 TimerTable[i].entry.next = 0;
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89 TimerTable[i].entry.prev = 0;
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90 TimerTable[i].next_t_handle = i + 1;
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91 p_list[i] = 0;
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92 }
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93 TimerTable[MaxSimultaneousTimer].entry.status = 0;
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94 TimerTable[MaxSimultaneousTimer].next_t_handle = 0;
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95 t_running = 0;
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96 return(OS_OK);
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97 }
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98
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99 GLOBAL LONG
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100 os_RecoverTick(OS_TICK ticks)
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101 {
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102 UNSIGNED current_system_clock;
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103
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104 current_system_clock = NU_Retrieve_Clock();
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105 NU_Set_Clock(current_system_clock + ticks);
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106 if (TMD_Timer_State == TM_ACTIVE) {
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107 if (TMD_Timer <= ticks) {
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108 TMD_Timer_State = TM_EXPIRED;
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109 TMD_Timer = 0;
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110 } else
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111 TMD_Timer -= ticks;
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112 }
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113 return(OS_OK);
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114 }
459
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115
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116 GLOBAL LONG
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117 os_QueryTimer(OS_HANDLE TaskHandle, OS_HANDLE TimerHandle,
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118 OS_TIME *RemainingTime)
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119 {
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120 T_OS_TIMER_TABLE_ENTRY *timer, *t_r0, *t_r3;
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121 OS_TICK c_ticks, r_ticks, e_ticks;
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parents: 458
diff changeset
122 STATUS sts;
38afaeb194ea os_tim_fl.c: os_QueryTimer() decompiled w/o real understanding of the logic
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 458
diff changeset
123
38afaeb194ea os_tim_fl.c: os_QueryTimer() decompiled w/o real understanding of the logic
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 458
diff changeset
124 t_list_access = 1;
38afaeb194ea os_tim_fl.c: os_QueryTimer() decompiled w/o real understanding of the logic
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 458
diff changeset
125 if (TimerHandle > MaxSimultaneousTimer) {
38afaeb194ea os_tim_fl.c: os_QueryTimer() decompiled w/o real understanding of the logic
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 458
diff changeset
126 error_out: t_list_access = 0;
38afaeb194ea os_tim_fl.c: os_QueryTimer() decompiled w/o real understanding of the logic
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 458
diff changeset
127 return(OS_ERROR);
38afaeb194ea os_tim_fl.c: os_QueryTimer() decompiled w/o real understanding of the logic
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 458
diff changeset
128 }
38afaeb194ea os_tim_fl.c: os_QueryTimer() decompiled w/o real understanding of the logic
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 458
diff changeset
129 timer = &TimerTable[TimerHandle].entry;
38afaeb194ea os_tim_fl.c: os_QueryTimer() decompiled w/o real understanding of the logic
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 458
diff changeset
130 if (!timer->status)
38afaeb194ea os_tim_fl.c: os_QueryTimer() decompiled w/o real understanding of the logic
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 458
diff changeset
131 goto error_out;
38afaeb194ea os_tim_fl.c: os_QueryTimer() decompiled w/o real understanding of the logic
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 458
diff changeset
132 sts = NU_Obtain_Semaphore(&TimSemCB, NU_SUSPEND);
38afaeb194ea os_tim_fl.c: os_QueryTimer() decompiled w/o real understanding of the logic
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 458
diff changeset
133 if (sts != NU_SUCCESS)
38afaeb194ea os_tim_fl.c: os_QueryTimer() decompiled w/o real understanding of the logic
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 458
diff changeset
134 timer_error(15);
38afaeb194ea os_tim_fl.c: os_QueryTimer() decompiled w/o real understanding of the logic
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 458
diff changeset
135 c_ticks = NU_Retrieve_Clock();
38afaeb194ea os_tim_fl.c: os_QueryTimer() decompiled w/o real understanding of the logic
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 458
diff changeset
136 e_ticks = c_ticks - t_start_ticks;
38afaeb194ea os_tim_fl.c: os_QueryTimer() decompiled w/o real understanding of the logic
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 458
diff changeset
137 t_r0 = t_running;
38afaeb194ea os_tim_fl.c: os_QueryTimer() decompiled w/o real understanding of the logic
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 458
diff changeset
138 *RemainingTime = 0;
38afaeb194ea os_tim_fl.c: os_QueryTimer() decompiled w/o real understanding of the logic
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 458
diff changeset
139 t_r3 = t_running;
38afaeb194ea os_tim_fl.c: os_QueryTimer() decompiled w/o real understanding of the logic
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 458
diff changeset
140 if (t_r0 == t_r3)
38afaeb194ea os_tim_fl.c: os_QueryTimer() decompiled w/o real understanding of the logic
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 458
diff changeset
141 r_ticks = t_r0->r_ticks - e_ticks;
38afaeb194ea os_tim_fl.c: os_QueryTimer() decompiled w/o real understanding of the logic
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 458
diff changeset
142 else
38afaeb194ea os_tim_fl.c: os_QueryTimer() decompiled w/o real understanding of the logic
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 458
diff changeset
143 r_ticks = t_r0->r_ticks;
38afaeb194ea os_tim_fl.c: os_QueryTimer() decompiled w/o real understanding of the logic
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 458
diff changeset
144 while (t_r0 != timer) {
38afaeb194ea os_tim_fl.c: os_QueryTimer() decompiled w/o real understanding of the logic
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 458
diff changeset
145 t_r0 = t_r0->next;
38afaeb194ea os_tim_fl.c: os_QueryTimer() decompiled w/o real understanding of the logic
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 458
diff changeset
146 if (t_r0 == t_r3)
38afaeb194ea os_tim_fl.c: os_QueryTimer() decompiled w/o real understanding of the logic
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 458
diff changeset
147 goto out;
38afaeb194ea os_tim_fl.c: os_QueryTimer() decompiled w/o real understanding of the logic
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 458
diff changeset
148 r_ticks += t_r0->r_ticks;
38afaeb194ea os_tim_fl.c: os_QueryTimer() decompiled w/o real understanding of the logic
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 458
diff changeset
149 }
38afaeb194ea os_tim_fl.c: os_QueryTimer() decompiled w/o real understanding of the logic
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 458
diff changeset
150 *RemainingTime = SYSTEM_TICKS_TO_TIME(r_ticks);
38afaeb194ea os_tim_fl.c: os_QueryTimer() decompiled w/o real understanding of the logic
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 458
diff changeset
151 out: if (sts == NU_SUCCESS)
38afaeb194ea os_tim_fl.c: os_QueryTimer() decompiled w/o real understanding of the logic
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 458
diff changeset
152 NU_Release_Semaphore(&TimSemCB);
38afaeb194ea os_tim_fl.c: os_QueryTimer() decompiled w/o real understanding of the logic
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 458
diff changeset
153 t_list_access = 0;
38afaeb194ea os_tim_fl.c: os_QueryTimer() decompiled w/o real understanding of the logic
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 458
diff changeset
154 return(OS_OK);
38afaeb194ea os_tim_fl.c: os_QueryTimer() decompiled w/o real understanding of the logic
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 458
diff changeset
155 }
460
9cacd09e8ef3 OSL: os_tim_fl.c done
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 459
diff changeset
156
9cacd09e8ef3 OSL: os_tim_fl.c done
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 459
diff changeset
157 GLOBAL LONG
9cacd09e8ef3 OSL: os_tim_fl.c done
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 459
diff changeset
158 os_InactivityTicks(int *next_event, OS_TICK *next_event_ticks)
9cacd09e8ef3 OSL: os_tim_fl.c done
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 459
diff changeset
159 {
9cacd09e8ef3 OSL: os_tim_fl.c done
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 459
diff changeset
160 *next_event = 1;
9cacd09e8ef3 OSL: os_tim_fl.c done
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 459
diff changeset
161 switch (TMD_Timer_State) {
9cacd09e8ef3 OSL: os_tim_fl.c done
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 459
diff changeset
162 case TM_ACTIVE:
9cacd09e8ef3 OSL: os_tim_fl.c done
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 459
diff changeset
163 *next_event_ticks = TMD_Timer;
9cacd09e8ef3 OSL: os_tim_fl.c done
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 459
diff changeset
164 return(OS_OK);
9cacd09e8ef3 OSL: os_tim_fl.c done
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 459
diff changeset
165 case TM_NOT_ACTIVE:
9cacd09e8ef3 OSL: os_tim_fl.c done
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 459
diff changeset
166 *next_event_ticks = 0;
9cacd09e8ef3 OSL: os_tim_fl.c done
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 459
diff changeset
167 *next_event = 0;
9cacd09e8ef3 OSL: os_tim_fl.c done
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 459
diff changeset
168 return(OS_OK);
9cacd09e8ef3 OSL: os_tim_fl.c done
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 459
diff changeset
169 default:
9cacd09e8ef3 OSL: os_tim_fl.c done
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 459
diff changeset
170 *next_event_ticks = 0;
9cacd09e8ef3 OSL: os_tim_fl.c done
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 459
diff changeset
171 return(OS_OK);
9cacd09e8ef3 OSL: os_tim_fl.c done
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 459
diff changeset
172 }
9cacd09e8ef3 OSL: os_tim_fl.c done
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents: 459
diff changeset
173 }