Subversion Repositories HelenOS-historic

Rev

Rev 664 | Rev 958 | Go to most recent revision | Show entire file | Ignore whitespace | Details | Blame | Last modification | View Log | RSS feed

Rev 664 Rev 665
Line 29... Line 29...
29 
#include <arch/drivers/tick.h>
 29 
#include <arch/drivers/tick.h>
30 
#include <arch/interrupt.h>
 30 
#include <arch/interrupt.h>
31 
#include <arch/asm.h>
 31 
#include <arch/asm.h>
32 
#include <arch/register.h>
 32 
#include <arch/register.h>
33 
#include <debug.h>
 33 
#include <debug.h>
34 
#include <print.h>
 34 
#include <time/clock.h>
35 
 
 35 
 
- 
 
 36 
/** Initialize tick interrupt. */
36 
void tick_init(void)
 37 
void tick_init(void)
37 
{
 38 
{
38 
    tick_compare_reg_t compare;
 39 
    tick_compare_reg_t compare;
39 
   
 40 
   
40 
    interrupt_register(14, "tick_int", tick_interrupt);
 41 
    interrupt_register(14, "tick_int", tick_interrupt);
Line 42... Line 43...
42 
    compare.tick_cmpr = TICK_DELTA;
 43 
    compare.tick_cmpr = TICK_DELTA;
43 
    tick_compare_write(compare.value);
 44 
    tick_compare_write(compare.value);
44 
    tick_write(0);
 45 
    tick_write(0);
45 
}
 46 
}
46 
 
 47 
 
- 
 
 48 
/** Process tick interrupt.
- 
 
 49 
 *
- 
 
 50 
 * @param n Interrupt Level, 14,  (can be ignored)
- 
 
 51 
 * @param stack Stack pointer of the interrupted context.
- 
 
 52 
 */
47 
void tick_interrupt(int n, void *stack)
 53 
void tick_interrupt(int n, void *stack)
48 
{
 54 
{
- 
 
 55 
    softint_reg_t softint, clear;
- 
 
 56 
   
- 
 
 57 
    softint.value = softint_read();
- 
 
 58 
   
- 
 
 59 
    /*
- 
 
 60 
     * Make sure we are servicing interrupt_level_14
- 
 
 61 
     */
- 
 
 62 
    ASSERT(n == 14);
- 
 
 63 
   
- 
 
 64 
    /*
49 
    panic("Unserviced %s.\n", __FUNCTION__);
 65 
     * Make sure we are servicing TICK_INT.
- 
 
 66 
     */
- 
 
 67 
    ASSERT(softint.tick_int);
- 
 
 68 
 
- 
 
 69 
    /*
- 
 
 70 
     * Clear tick interrupt.
- 
 
 71 
     */
- 
 
 72 
    clear.value = 0;
- 
 
 73 
    clear.tick_int = 1;
- 
 
 74 
    clear_softint_write(clear.value);
- 
 
 75 
   
- 
 
 76 
    /*
- 
 
 77 
     * Restart counter.
- 
 
 78 
     */
- 
 
 79 
    tick_write(0);
- 
 
 80 
   
- 
 
 81 
    clock();
50 
}
 82 
}