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-rw-r--r--sound/oss/sys_timer.c280
1 files changed, 0 insertions, 280 deletions
diff --git a/sound/oss/sys_timer.c b/sound/oss/sys_timer.c
deleted file mode 100644
index d17019d25b99..000000000000
--- a/sound/oss/sys_timer.c
+++ /dev/null
@@ -1,280 +0,0 @@
-/*
- * sound/oss/sys_timer.c
- *
- * The default timer for the Level 2 sequencer interface
- * Uses the (1/HZ sec) timer of kernel.
- */
-/*
- * Copyright (C) by Hannu Savolainen 1993-1997
- *
- * OSS/Free for Linux is distributed under the GNU GENERAL PUBLIC LICENSE (GPL)
- * Version 2 (June 1991). See the "COPYING" file distributed with this software
- * for more info.
- */
-/*
- * Thomas Sailer : ioctl code reworked (vmalloc/vfree removed)
- * Andrew Veliath : adapted tmr2ticks from level 1 sequencer (avoid overflow)
- */
-#include <linux/spinlock.h>
-#include "sound_config.h"
-
-static volatile int opened, tmr_running;
-static volatile unsigned int tmr_offs, tmr_ctr;
-static volatile unsigned long ticks_offs;
-static volatile int curr_tempo, curr_timebase;
-static volatile unsigned long curr_ticks;
-static volatile unsigned long next_event_time;
-static unsigned long prev_event_time;
-
-static void poll_def_tmr(unsigned long dummy);
-static DEFINE_SPINLOCK(lock);
-static DEFINE_TIMER(def_tmr, poll_def_tmr, 0, 0);
-
-static unsigned long
-tmr2ticks(int tmr_value)
-{
- /*
- * Convert timer ticks to MIDI ticks
- */
-
- unsigned long tmp;
- unsigned long scale;
-
- /* tmr_value (ticks per sec) *
- 1000000 (usecs per sec) / HZ (ticks per sec) -=> usecs */
- tmp = tmr_value * (1000000 / HZ);
- scale = (60 * 1000000) / (curr_tempo * curr_timebase); /* usecs per MIDI tick */
- return (tmp + scale / 2) / scale;
-}
-
-static void
-poll_def_tmr(unsigned long dummy)
-{
- if (!opened)
- return;
- def_tmr.expires = (1) + jiffies;
- add_timer(&def_tmr);
-
- if (!tmr_running)
- return;
-
- spin_lock(&lock);
- tmr_ctr++;
- curr_ticks = ticks_offs + tmr2ticks(tmr_ctr);
-
- if (curr_ticks >= next_event_time) {
- next_event_time = (unsigned long) -1;
- sequencer_timer(0);
- }
-
- spin_unlock(&lock);
-}
-
-static void
-tmr_reset(void)
-{
- unsigned long flags;
-
- spin_lock_irqsave(&lock,flags);
- tmr_offs = 0;
- ticks_offs = 0;
- tmr_ctr = 0;
- next_event_time = (unsigned long) -1;
- prev_event_time = 0;
- curr_ticks = 0;
- spin_unlock_irqrestore(&lock,flags);
-}
-
-static int
-def_tmr_open(int dev, int mode)
-{
- if (opened)
- return -EBUSY;
-
- tmr_reset();
- curr_tempo = 60;
- curr_timebase = 100;
- opened = 1;
- {
- def_tmr.expires = (1) + jiffies;
- add_timer(&def_tmr);
- }
-
- return 0;
-}
-
-static void
-def_tmr_close(int dev)
-{
- opened = tmr_running = 0;
- del_timer(&def_tmr);
-}
-
-static int
-def_tmr_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;
- break;
-
- case TMR_STOP:
- tmr_running = 0;
- break;
-
- case TMR_CONTINUE:
- tmr_running = 1;
- break;
-
- case TMR_TEMPO:
- if (parm)
- {
- if (parm < 8)
- parm = 8;
- if (parm > 360)
- parm = 360;
- tmr_offs = tmr_ctr;
- ticks_offs += tmr2ticks(tmr_ctr);
- tmr_ctr = 0;
- curr_tempo = parm;
- }
- break;
-
- case TMR_ECHO:
- seq_copy_to_input(event, 8);
- break;
-
- default:;
- }
-
- return TIMER_NOT_ARMED;
-}
-
-static unsigned long
-def_tmr_get_time(int dev)
-{
- if (!opened)
- return 0;
-
- return curr_ticks;
-}
-
-/* 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 void
-def_tmr_arm(int dev, long time)
-{
- if (time < 0)
- time = curr_ticks + 1;
- else if (time <= curr_ticks) /* It's the time */
- return;
-
- next_event_time = prev_event_time = time;
-
- return;
-}
-
-struct sound_timer_operations default_sound_timer =
-{
- .owner = THIS_MODULE,
- .info = {"System clock", 0},
- .priority = 0, /* Priority */
- .devlink = 0, /* Local device link */
- .open = def_tmr_open,
- .close = def_tmr_close,
- .event = def_tmr_event,
- .get_time = def_tmr_get_time,
- .ioctl = def_tmr_ioctl,
- .arm_timer = def_tmr_arm
-};
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