static int timer_event(int dev, unsigned char *event) { unsigned char cmd = event[1]; unsigned long parm = *(int *) &event[4]; switch (cmd) { case TMR_WAIT_REL: parm += prev_event_time; case TMR_WAIT_ABS: if (parm > 0) { long time; if (parm <= curr_ticks) /* It's the time */ return TIMER_NOT_ARMED; time = parm; next_event_time = prev_event_time = time; return TIMER_ARMED; } break; case TMR_START: tmr_reset(); tmr_running = 1; reprogram_timer(); break; case TMR_STOP: tmr_running = 0; break; case TMR_CONTINUE: tmr_running = 1; reprogram_timer(); break; case TMR_TEMPO: if (parm) { if (parm < 8) parm = 8; if (parm > 250) parm = 250; tmr_offs = tmr_ctr; ticks_offs += tmr2ticks(tmr_ctr); tmr_ctr = 0; curr_tempo = parm; reprogram_timer(); } break; case TMR_ECHO: seq_copy_to_input(event, 8); break; default:; } return TIMER_NOT_ARMED; }
static int timer_open(int dev, int mode) { if (opened) return -EBUSY; tmr_reset(); curr_tempo = 60; curr_timebase = 100; opened = 1; reprogram_timer(); return 0; }
static int timer_set_next_event(unsigned long delta, struct clock_event_device *dev) { unsigned long flags; local_irq_save(flags); reprogram_timer(group2_base, 0, delta); local_irq_restore(flags); return 0; }
static int percpu_timer_set_next_event(unsigned long delta, struct clock_event_device *dev) { unsigned long flags; u32 cpuid = hard_smp_processor_id(); u32 timern = cpuid & 0x1; void __iomem *base = irq_map[cpuid].base; /* if cpu is offline, should not set next event on local timer */ BUG_ON(!cpu_online(cpuid)); spin_lock_irqsave(&soc_tmr_lock[cpuid>>1], flags); reprogram_timer(base, timern, delta); spin_unlock_irqrestore(&soc_tmr_lock[cpuid>>1], flags); return 0; }
/* same as sound_timer.c:timer_ioctl!? */ static int def_tmr_ioctl(int dev, unsigned int cmd, void __user *arg) { int __user *p = arg; int val; switch (cmd) { case SNDCTL_TMR_SOURCE: return __put_user(TMR_INTERNAL, p); case SNDCTL_TMR_START: tmr_reset(); tmr_running = 1; return 0; case SNDCTL_TMR_STOP: tmr_running = 0; return 0; case SNDCTL_TMR_CONTINUE: tmr_running = 1; return 0; case SNDCTL_TMR_TIMEBASE: if (__get_user(val, p)) return -EFAULT; if (val) { if (val < 1) val = 1; if (val > 1000) val = 1000; curr_timebase = val; } return __put_user(curr_timebase, p); case SNDCTL_TMR_TEMPO: if (__get_user(val, p)) return -EFAULT; if (val) { if (val < 8) val = 8; if (val > 250) val = 250; tmr_offs = tmr_ctr; ticks_offs += tmr2ticks(tmr_ctr); tmr_ctr = 0; curr_tempo = val; reprogram_timer(); } return __put_user(curr_tempo, p); case SNDCTL_SEQ_CTRLRATE: if (__get_user(val, p)) return -EFAULT; if (val != 0) /* Can't change */ return -EINVAL; val = ((curr_tempo * curr_timebase) + 30) / 60; return __put_user(val, p); case SNDCTL_SEQ_GETTIME: return __put_user(curr_ticks, p); case SNDCTL_TMR_METRONOME: /* NOP */ break; default:; } return -EINVAL; }
static int timer_ioctl (int dev, unsigned int cmd, caddr_t arg) { switch (cmd) { case SNDCTL_TMR_SOURCE: return snd_ioctl_return ((int *) arg, TMR_INTERNAL); break; case SNDCTL_TMR_START: tmr_reset (); tmr_running = 1; return 0; break; case SNDCTL_TMR_STOP: tmr_running = 0; return 0; break; case SNDCTL_TMR_CONTINUE: tmr_running = 1; return 0; break; case SNDCTL_TMR_TIMEBASE: { int val = get_fs_long ((long *) arg); if (val) { if (val < 1) val = 1; if (val > 1000) val = 1000; curr_timebase = val; } return snd_ioctl_return ((int *) arg, curr_timebase); } break; case SNDCTL_TMR_TEMPO: { int val = get_fs_long ((long *) arg); if (val) { if (val < 8) val = 8; if (val > 250) val = 250; tmr_offs = tmr_ctr; ticks_offs += tmr2ticks (tmr_ctr); tmr_ctr = 0; curr_tempo = val; reprogram_timer (); } return snd_ioctl_return ((int *) arg, curr_tempo); } break; case SNDCTL_SEQ_CTRLRATE: if (get_fs_long ((long *) arg) != 0) /* Can't change */ return -(EINVAL); return snd_ioctl_return ((int *) arg, ((curr_tempo * curr_timebase) + 30) / 60); break; case SNDCTL_TMR_METRONOME: /* NOP */ break; default:; } return -(EINVAL); }