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further refactor of pit functions

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now they are all prepended with pit_
This commit is contained in:
shockrahwow 2019-11-29 13:08:59 -08:00
parent 3c8062ef17
commit a9d947c51f
2 changed files with 10 additions and 9 deletions
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15
pit.c
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@ -4,16 +4,17 @@
#include "serial.h" #include "serial.h"
#include "stlio.h" #include "stlio.h"
volatile u32 timer_ticks = 0; volatile u32 pit_timer_ticks = 0;
void inc_ticks(struct cpu_reg_state* cpu) { void pit_inc_ticks(struct cpu_reg_state* cpu) {
timer_ticks++; pit_timer_ticks++;
} }
void timer_wait(u32 time) { void pit_timer_wait(u32 time) {
u32 ticks = time + timer_ticks; u32 ticks = time + pit_timer_ticks;
while(timer_ticks < ticks); while(pit_timer_ticks < ticks);
} }
void pit_install_timer(void) { void pit_install_timer(void) {
init_irq_handler(0, inc_ticks); // timer interrupt request falls into int 0 init_irq_handler(0, pit_inc_ticks); // timer interrupt request falls into irq 0
} }

4
pit.h
View File

@ -9,9 +9,9 @@
#define PIT_TIME_DATA1 0x41 #define PIT_TIME_DATA1 0x41
#define PIT_TIME_DATA2 0x42 #define PIT_TIME_DATA2 0x42
void inc_ticks(struct cpu_reg_state*); void pit_inc_ticks(struct cpu_reg_state*);
void timer_wait(u32); void pit_timer_wait(u32);
void pit_install_timer(void); void pit_install_timer(void);
#endif #endif