aboutsummaryrefslogtreecommitdiff
path: root/sys/i386/isa/sound/sys_timer.c
diff options
context:
space:
mode:
Diffstat (limited to 'sys/i386/isa/sound/sys_timer.c')
-rw-r--r--sys/i386/isa/sound/sys_timer.c328
1 files changed, 150 insertions, 178 deletions
diff --git a/sys/i386/isa/sound/sys_timer.c b/sys/i386/isa/sound/sys_timer.c
index 1000045a42d5..a605dfc2f4e3 100644
--- a/sys/i386/isa/sound/sys_timer.c
+++ b/sys/i386/isa/sound/sys_timer.c
@@ -1,11 +1,11 @@
/*
* sound/sys_timer.c
- *
- * The default timer for the Level 2 sequencer interface
- * Uses the (100HZ) timer of kernel.
- *
+ *
+ * The default timer for the Level 2 sequencer interface.
+ * Uses the (100hz) timer of kernel.
+ *
* Copyright by Hannu Savolainen 1993
- *
+ *
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met: 1. Redistributions of source code must retain the above copyright
@@ -13,7 +13,7 @@
* Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
- *
+ *
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
@@ -25,280 +25,252 @@
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
- *
+ *
*/
#define SEQUENCER_C
-#include "sound_config.h"
+#include <i386/isa/sound/sound_config.h>
-#ifdef CONFIGURE_SOUNDCARD
+#if NSND > 0
-#ifndef EXCLUDE_SEQUENCER
+#if defined(CONFIG_SEQUENCER)
static volatile int opened = 0, tmr_running = 0;
static volatile time_t tmr_offs, tmr_ctr;
-static volatile unsigned long ticks_offs;
+static volatile u_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 volatile u_long curr_ticks;
+static volatile u_long next_event_time;
+static u_long prev_event_time;
-static void poll_def_tmr (unsigned long dummy);
+static void poll_def_tmr(void *dummy);
-DEFINE_TIMER (def_tmr, poll_def_tmr);
-
-static unsigned long
-tmr2ticks (int tmr_value)
+static u_long
+tmr2ticks(int tmr_value)
{
- /*
- * Convert system timer ticks (HZ) to MIDI ticks
- */
-
- unsigned long tmp;
- unsigned long scale;
-
- tmp = (tmr_value * 1000) / HZ;/* Convert to msecs */
+ /*
+ * Convert system timer ticks (hz) to MIDI ticks (divide # of MIDI
+ * ticks/minute by # of system ticks/minute).
+ */
- scale = (60 * 1000) / (curr_tempo * curr_timebase); /* msecs per MIDI tick */
-
- return (tmp + (scale / 2)) / scale;
+ return ((tmr_value * curr_tempo * curr_timebase) + (30 * hz)) / (60 * hz);
}
static void
-poll_def_tmr (unsigned long dummy)
+poll_def_tmr(void *dummy)
{
- if (opened)
- {
- ACTIVATE_TIMER (def_tmr, poll_def_tmr, 1);
+ if (opened) {
- if (tmr_running)
- {
- tmr_ctr++;
- curr_ticks = ticks_offs + tmr2ticks (tmr_ctr);
+ timeout( poll_def_tmr, 0, 1);;
+
+ if (tmr_running) {
+ tmr_ctr++;
+ curr_ticks = ticks_offs + tmr2ticks(tmr_ctr);
- if (curr_ticks >= next_event_time)
- {
- next_event_time = 0xffffffff;
- sequencer_timer ();
+ if (curr_ticks >= next_event_time) {
+ next_event_time = 0xffffffff;
+ sequencer_timer(0);
}
}
}
}
static void
-tmr_reset (void)
+tmr_reset(void)
{
- unsigned long flags;
-
- DISABLE_INTR (flags);
- tmr_offs = 0;
- ticks_offs = 0;
- tmr_ctr = 0;
- next_event_time = 0xffffffff;
- prev_event_time = 0;
- curr_ticks = 0;
- RESTORE_INTR (flags);
+ u_long flags;
+
+ flags = splhigh();
+ tmr_offs = 0;
+ ticks_offs = 0;
+ tmr_ctr = 0;
+ next_event_time = 0xffffffff;
+ prev_event_time = 0;
+ curr_ticks = 0;
+ splx(flags);
}
static int
-def_tmr_open (int dev, int mode)
+def_tmr_open(int dev, int mode)
{
- if (opened)
- return RET_ERROR (EBUSY);
+ if (opened)
+ return -(EBUSY);
- tmr_reset ();
- curr_tempo = 60;
- curr_timebase = HZ;
- opened = 1;
+ tmr_reset();
+ curr_tempo = 60;
+ curr_timebase = hz;
+ opened = 1;
- ACTIVATE_TIMER (def_tmr, poll_def_tmr, 1);
+ timeout( poll_def_tmr, 0, 1);;
- return 0;
+ return 0;
}
static void
-def_tmr_close (int dev)
+def_tmr_close(int dev)
{
- opened = tmr_running = 0;
+ opened = tmr_running = 0;
}
static int
-def_tmr_event (int dev, unsigned char *event)
+def_tmr_event(int dev, u_char *event)
{
- unsigned char cmd = event[1];
- unsigned long parm = *(int *) &event[4];
+ u_char cmd = event[1];
+ u_long parm = *(int *) &event[4];
- switch (cmd)
- {
+ switch (cmd) {
case TMR_WAIT_REL:
- parm += prev_event_time;
+ parm += prev_event_time;
case TMR_WAIT_ABS:
- if (parm > 0)
- {
- long time;
+ if (parm > 0) {
+ long time;
- if (parm <= curr_ticks) /* It's the time */
- return TIMER_NOT_ARMED;
+ if (parm <= curr_ticks) /* It's the time */
+ return TIMER_NOT_ARMED;
- time = parm;
- next_event_time = prev_event_time = time;
+ time = parm;
+ next_event_time = prev_event_time = time;
- return TIMER_ARMED;
+ return TIMER_ARMED;
}
- break;
+ break;
case TMR_START:
- tmr_reset ();
- tmr_running = 1;
- break;
+ tmr_reset();
+ tmr_running = 1;
+ break;
case TMR_STOP:
- tmr_running = 0;
- break;
+ tmr_running = 0;
+ break;
case TMR_CONTINUE:
- tmr_running = 1;
- break;
+ tmr_running = 1;
+ 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;
+ if (parm) {
+ RANGE (parm, 8, 360) ;
+ tmr_offs = tmr_ctr;
+ ticks_offs += tmr2ticks(tmr_ctr);
+ tmr_ctr = 0;
+ curr_tempo = parm;
}
- break;
+ break;
case TMR_ECHO:
- seq_copy_to_input (event, 8);
- break;
+ seq_copy_to_input(event, 8);
+ break;
default:;
}
- return TIMER_NOT_ARMED;
+ return TIMER_NOT_ARMED;
}
-static unsigned long
-def_tmr_get_time (int dev)
+static u_long
+def_tmr_get_time(int dev)
{
- if (!opened)
- return 0;
+ if (!opened)
+ return 0;
- return curr_ticks;
+ return curr_ticks;
}
static int
-def_tmr_ioctl (int dev,
- unsigned int cmd, unsigned int arg)
+def_tmr_ioctl(int dev, u_int cmd, ioctl_arg arg)
{
- switch (cmd)
- {
+ switch (cmd) {
case SNDCTL_TMR_SOURCE:
- return IOCTL_OUT (arg, TMR_INTERNAL);
- break;
+ return *(int *) arg = TMR_INTERNAL;
+ break;
case SNDCTL_TMR_START:
- tmr_reset ();
- tmr_running = 1;
- return 0;
- break;
+ tmr_reset();
+ tmr_running = 1;
+ return 0;
+ break;
case SNDCTL_TMR_STOP:
- tmr_running = 0;
- return 0;
- break;
+ tmr_running = 0;
+ return 0;
+ break;
case SNDCTL_TMR_CONTINUE:
- tmr_running = 1;
- return 0;
- break;
+ tmr_running = 1;
+ return 0;
+ break;
case SNDCTL_TMR_TIMEBASE:
- {
- int val = IOCTL_IN (arg);
-
- if (val)
- {
- if (val < 1)
- val = 1;
- if (val > 1000)
- val = 1000;
- curr_timebase = val;
- }
-
- return IOCTL_OUT (arg, curr_timebase);
- }
- break;
+ {
+ int val = (*(int *) arg);
- case SNDCTL_TMR_TEMPO:
- {
- int val = IOCTL_IN (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;
- }
+ if (val) {
+ RANGE (val, 1, 1000) ;
+ curr_timebase = val;
+ }
+ return *(int *) arg = curr_timebase;
+ }
+ break;
- return IOCTL_OUT (arg, curr_tempo);
- }
- break;
+ case SNDCTL_TMR_TEMPO:
+ {
+ int val = (*(int *) arg);
+
+ if (val) {
+ RANGE (val, 8, 250) ;
+ tmr_offs = tmr_ctr;
+ ticks_offs += tmr2ticks(tmr_ctr);
+ tmr_ctr = 0;
+ curr_tempo = val;
+ }
+ return *(int *) arg = curr_tempo;
+ }
+ break;
case SNDCTL_SEQ_CTRLRATE:
- if (IOCTL_IN (arg) != 0) /* Can't change */
- return RET_ERROR (EINVAL);
+ if ((*(int *) arg) != 0) /* Can't change */
+ return -(EINVAL);
- return IOCTL_OUT (arg, ((curr_tempo * curr_timebase) + 30) / 60);
- break;
+ return *(int *) arg = ((curr_tempo * curr_timebase) + 30) / 60;
+ break;
case SNDCTL_TMR_METRONOME:
- /* NOP */
- break;
+ /* NOP */
+ break;
default:;
}
- return RET_ERROR (EINVAL);
+ return -(EINVAL);
}
static void
-def_tmr_arm (int dev, long time)
+def_tmr_arm(int dev, long time)
{
- if (time < 0)
- time = curr_ticks + 1;
- else if (time <= curr_ticks) /* It's the time */
- return;
+ if (time < 0)
+ time = curr_ticks + 1;
+ else if (time <= curr_ticks) /* It's the time */
+ return;
- next_event_time = prev_event_time = time;
+ next_event_time = prev_event_time = time;
- return;
+ return;
}
struct sound_timer_operations default_sound_timer =
{
- {"System Timer", 0},
- 0, /* Priority */
- 0, /* Local device link */
- def_tmr_open,
- def_tmr_close,
- def_tmr_event,
- def_tmr_get_time,
- def_tmr_ioctl,
- def_tmr_arm
+ {"System clock", 0},
+ 0, /* Priority */
+ 0, /* Local device link */
+ def_tmr_open,
+ def_tmr_close,
+ def_tmr_event,
+ def_tmr_get_time,
+ def_tmr_ioctl,
+ def_tmr_arm
};
#endif
-#endif
+#endif /* NSND > 0 */
generated by cgit v1.2.3 (git 2.25.1) at 2024-06-17 22:31:17 +0000