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[/] [or1k/] [tags/] [nog_patch_60/] [or1ksim/] [testbench/] [uos/] [tick.c] - Rev 222
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/* This file is part of test microkernel for OpenRISC 1000. */ /* (C) 2001 Simon Srot, srot@opencores.org */ #include "spr_defs.h" #include "int.h" /* Tick timer period */ unsigned long tick_period; /* Inform of tick interrupt */ void (*tick_inf)(); /* Tick interrupt routine */ void tick_int() { /* Call inf routine */ (*tick_inf)(); /* Set new counter period iand clear inet pending bit */ /* mtspr(SPR_TTMR, SPR_TTMR_IE | SPR_TTMR_SR | (period & SPR_TTMR_PERIOD));*/ } /* Initialize routine */ int tick_init(unsigned long period, void (* inf)()) { /* Save tick timer period and inform routine */ tick_period = period; tick_inf = inf; /* Add interrupt handler */ int_add(V_TICK, tick_int, 0/*, INT_HIGH_PRI*/); /* Set counter period, enable timer and interrupt */ mtspr(SPR_TTMR, SPR_TTMR_IE | SPR_TTMR_CR | (period & SPR_TTMR_PERIOD)); return 0; }
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