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https://opencores.org/ocsvn/or1k/or1k/trunk
[/] [or1k/] [trunk/] [orpmon/] [drivers/] [tick.c] - Diff between revs 878 and 1765
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| Rev 878 |
Rev 1765 |
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#include "common.h"
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#include "common.h"
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#include "support.h"
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#include "support.h"
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#include "spr_defs.h"
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#include "spr_defs.h"
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void tick_init(void)
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void tick_init(void)
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{
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{
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mtspr(SPR_SR, SPR_SR_TEE | mfspr(SPR_SR));
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mtspr(SPR_SR, SPR_SR_TEE | mfspr(SPR_SR));
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mtspr(SPR_TTMR, SPR_TTMR_IE | SPR_TTMR_RT | ((IN_CLK/TICKS_PER_SEC) & SPR_TTMR_PERIOD));
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mtspr(SPR_TTMR, SPR_TTMR_IE | SPR_TTMR_RT | ((IN_CLK/TICKS_PER_SEC) & SPR_TTMR_PERIOD));
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}
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}
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void tick_interrupt(void)
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void tick_interrupt(void)
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{
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{
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timestamp++;
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timestamp++;
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mtspr(SPR_TTMR, SPR_TTMR_IE | SPR_TTMR_RT | ((IN_CLK/TICKS_PER_SEC) & SPR_TTMR_PERIOD));
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mtspr(SPR_TTMR, SPR_TTMR_IE | SPR_TTMR_RT | ((IN_CLK/TICKS_PER_SEC) & SPR_TTMR_PERIOD));
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}
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}
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/*
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/*
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sleep for n timer-ticks
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sleep for n timer-ticks
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*/
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*/
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void sleep(unsigned long sleep_time)
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void sleep(unsigned long sleep_time)
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{
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{
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unsigned long start_time;
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unsigned long start_time;
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start_time = timestamp;
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start_time = timestamp;
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while ( (timestamp - start_time) < sleep_time)
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while ( (timestamp - start_time) < sleep_time)
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; /* do nothing */
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; /* do nothing */
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}
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}
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