diff options
Diffstat (limited to 'arch/m68k/atari/time.c')
| -rw-r--r-- | arch/m68k/atari/time.c | 20 |
1 files changed, 11 insertions, 9 deletions
diff --git a/arch/m68k/atari/time.c b/arch/m68k/atari/time.c index 1edde27fa32..da8f981c36d 100644 --- a/arch/m68k/atari/time.c +++ b/arch/m68k/atari/time.c @@ -17,6 +17,7 @@ #include <linux/rtc.h> #include <linux/bcd.h> #include <linux/delay.h> +#include <linux/export.h> #include <asm/atariints.h> @@ -27,12 +28,13 @@ void __init atari_sched_init(irq_handler_t timer_routine) { /* set Timer C data Register */ - mfp.tim_dt_c = INT_TICKS; + st_mfp.tim_dt_c = INT_TICKS; /* start timer C, div = 1:100 */ - mfp.tim_ct_cd = (mfp.tim_ct_cd & 15) | 0x60; + st_mfp.tim_ct_cd = (st_mfp.tim_ct_cd & 15) | 0x60; /* install interrupt service routine for MFP Timer C */ - request_irq(IRQ_MFP_TIMC, timer_routine, IRQ_TYPE_SLOW, - "timer", timer_routine); + if (request_irq(IRQ_MFP_TIMC, timer_routine, IRQ_TYPE_SLOW, + "timer", timer_routine)) + pr_err("Couldn't register timer interrupt\n"); } /* ++andreas: gettimeoffset fixed to check for pending interrupt */ @@ -40,22 +42,22 @@ atari_sched_init(irq_handler_t timer_routine) #define TICK_SIZE 10000 /* This is always executed with interrupts disabled. */ -unsigned long atari_gettimeoffset (void) +u32 atari_gettimeoffset(void) { - unsigned long ticks, offset = 0; + u32 ticks, offset = 0; /* read MFP timer C current value */ - ticks = mfp.tim_dt_c; + ticks = st_mfp.tim_dt_c; /* The probability of underflow is less than 2% */ if (ticks > INT_TICKS - INT_TICKS / 50) /* Check for pending timer interrupt */ - if (mfp.int_pn_b & (1 << 5)) + if (st_mfp.int_pn_b & (1 << 5)) offset = TICK_SIZE; ticks = INT_TICKS - ticks; ticks = ticks * 10000L / INT_TICKS; - return ticks + offset; + return (ticks + offset) * 1000; } |