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comparison gsm-fw/gpf/osl/os_tim_fl.c @ 459:38afaeb194ea

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os_tim_fl.c: os_QueryTimer() decompiled w/o real understanding of the logic
author Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
date Mon, 23 Jun 2014 06:54:40 +0000
parents 705030e1e8b2
children 9cacd09e8ef3
comparison
equal deleted inserted replaced
458:705030e1e8b2 459:38afaeb194ea
24 24
25 unsigned os_time_to_tick_multiplier = TIME_TO_TICK_TDMA_FRAME_MULTIPLIER; 25 unsigned os_time_to_tick_multiplier = TIME_TO_TICK_TDMA_FRAME_MULTIPLIER;
26 unsigned os_tick_to_time_multiplier = TICK_TO_TIME_TDMA_FRAME_MULTIPLIER; 26 unsigned os_tick_to_time_multiplier = TICK_TO_TIME_TDMA_FRAME_MULTIPLIER;
27 27
28 unsigned t_start_ticks; 28 unsigned t_start_ticks;
29 T_OS_TIMER_TABLE_ENTRY *t_running; 29 T_OS_TIMER_TABLE_ENTRY * volatile t_running;
30 int used_timers; 30 int used_timers;
31 int next_t_handle; 31 int next_t_handle;
32 int t_list_access; 32 int volatile t_list_access;
33 int max_used_timers; 33 int max_used_timers;
34 NU_SEMAPHORE TimSemCB; 34 NU_SEMAPHORE TimSemCB;
35 NU_TIMER os_timer_cb; 35 NU_TIMER os_timer_cb;
36 36
37 GLOBAL LONG 37 GLOBAL LONG
110 } else 110 } else
111 TMD_Timer -= ticks; 111 TMD_Timer -= ticks;
112 } 112 }
113 return(OS_OK); 113 return(OS_OK);
114 } 114 }
115
116 GLOBAL LONG
117 os_QueryTimer(OS_HANDLE TaskHandle, OS_HANDLE TimerHandle,
118 OS_TIME *RemainingTime)
119 {
120 T_OS_TIMER_TABLE_ENTRY *timer, *t_r0, *t_r3;
121 OS_TICK c_ticks, r_ticks, e_ticks;
122 STATUS sts;
123
124 t_list_access = 1;
125 if (TimerHandle > MaxSimultaneousTimer) {
126 error_out: t_list_access = 0;
127 return(OS_ERROR);
128 }
129 timer = &TimerTable[TimerHandle].entry;
130 if (!timer->status)
131 goto error_out;
132 sts = NU_Obtain_Semaphore(&TimSemCB, NU_SUSPEND);
133 if (sts != NU_SUCCESS)
134 timer_error(15);
135 c_ticks = NU_Retrieve_Clock();
136 e_ticks = c_ticks - t_start_ticks;
137 t_r0 = t_running;
138 *RemainingTime = 0;
139 t_r3 = t_running;
140 if (t_r0 == t_r3)
141 r_ticks = t_r0->r_ticks - e_ticks;
142 else
143 r_ticks = t_r0->r_ticks;
144 while (t_r0 != timer) {
145 t_r0 = t_r0->next;
146 if (t_r0 == t_r3)
147 goto out;
148 r_ticks += t_r0->r_ticks;
149 }
150 *RemainingTime = SYSTEM_TICKS_TO_TIME(r_ticks);
151 out: if (sts == NU_SUCCESS)
152 NU_Release_Semaphore(&TimSemCB);
153 t_list_access = 0;
154 return(OS_OK);
155 }