diff -Nur vanilla-2.5.39/sound/oss/audio.c linux-2.5.39/sound/oss/audio.c
--- vanilla-2.5.39/sound/oss/audio.c Mon Sep 9 23:52:35 2002
+++ linux-2.5.39/sound/oss/audio.c Sun Sep 29 19:48:41 2002
@@ -826,37 +826,48 @@
if (!(audio_devs[dev]->flags & DMA_DUPLEX) && (bits & PCM_ENABLE_INPUT) &&
(bits & PCM_ENABLE_OUTPUT))
return -EINVAL;
- spin_lock_irqsave(&dmap->lock,flags);
- changed = audio_devs[dev]->enable_bits ^ bits;
- if ((changed & bits) & PCM_ENABLE_INPUT && audio_devs[dev]->go)
+
+ if (bits & PCM_ENABLE_INPUT)
{
- reorganize_buffers(dev, dmap_in, 1);
- if ((err = audio_devs[dev]->d->prepare_for_input(dev,
- dmap_in->fragment_size, dmap_in->nbufs)) < 0) {
- spin_unlock_irqrestore(&dmap->lock,flags);
- return -err;
- }
- dmap_in->dma_mode = DMODE_INPUT;
- audio_devs[dev]->enable_bits = bits;
- DMAbuf_activate_recording(dev, dmap_in);
+ spin_lock_irqsave(&dmap_in->lock,flags);
+ changed = (audio_devs[dev]->enable_bits ^ bits) & PCM_ENABLE_INPUT;
+ if (changed && audio_devs[dev]->go)
+ {
+ reorganize_buffers(dev, dmap_in, 1);
+ if ((err = audio_devs[dev]->d->prepare_for_input(dev,
+ dmap_in->fragment_size, dmap_in->nbufs)) < 0) {
+ spin_unlock_irqrestore(&dmap_in->lock,flags);
+ return -err;
+ }
+ dmap_in->dma_mode = DMODE_INPUT;
+ audio_devs[dev]->enable_bits |= PCM_ENABLE_INPUT;
+ DMAbuf_activate_recording(dev, dmap_in);
+ } else
+ audio_devs[dev]->enable_bits &= ~PCM_ENABLE_INPUT;
+ spin_unlock_irqrestore(&dmap_in->lock,flags);
}
- if ((changed & bits) & PCM_ENABLE_OUTPUT &&
- (dmap_out->mapping_flags & DMA_MAP_MAPPED || dmap_out->qlen > 0) &&
- audio_devs[dev]->go)
+ if (bits & PCM_ENABLE_OUTPUT)
{
- if (!(dmap_out->flags & DMA_ALLOC_DONE))
- reorganize_buffers(dev, dmap_out, 0);
- dmap_out->dma_mode = DMODE_OUTPUT;
- audio_devs[dev]->enable_bits = bits;
- dmap_out->counts[dmap_out->qhead] = dmap_out->fragment_size;
- DMAbuf_launch_output(dev, dmap_out);
+ spin_lock_irqsave(&dmap_out->lock,flags);
+ changed = (audio_devs[dev]->enable_bits ^ bits) & PCM_ENABLE_OUTPUT;
+ if (changed &&
+ (dmap_out->mapping_flags & DMA_MAP_MAPPED || dmap_out->qlen > 0) &&
+ audio_devs[dev]->go)
+ {
+ if (!(dmap_out->flags & DMA_ALLOC_DONE))
+ reorganize_buffers(dev, dmap_out, 0);
+ dmap_out->dma_mode = DMODE_OUTPUT;
+ audio_devs[dev]->enable_bits |= PCM_ENABLE_OUTPUT;
+ dmap_out->counts[dmap_out->qhead] = dmap_out->fragment_size;
+ DMAbuf_launch_output(dev, dmap_out);
+ } else
+ audio_devs[dev]->enable_bits &= ~PCM_ENABLE_OUTPUT;
+ spin_unlock_irqrestore(&dmap_out->lock,flags);
}
- audio_devs[dev]->enable_bits = bits;
#if 0
if (changed && audio_devs[dev]->d->trigger)
audio_devs[dev]->d->trigger(dev, bits * audio_devs[dev]->go);
#endif
- spin_unlock_irqrestore(&dmap->lock,flags);
/* Falls through... */
case SNDCTL_DSP_GETTRIGGER:
@@ -873,7 +884,7 @@
case SNDCTL_DSP_GETIPTR:
if (!(audio_devs[dev]->open_mode & OPEN_READ))
return -EINVAL;
- spin_lock_irqsave(&dmap->lock,flags);
+ spin_lock_irqsave(&dmap_in->lock,flags);
cinfo.bytes = dmap_in->byte_counter;
cinfo.ptr = DMAbuf_get_buffer_pointer(dev, dmap_in, DMODE_INPUT) & ~3;
if (cinfo.ptr < dmap_in->fragment_size && dmap_in->qtail != 0)
@@ -882,7 +893,7 @@
cinfo.bytes += cinfo.ptr;
if (dmap_in->mapping_flags & DMA_MAP_MAPPED)
dmap_in->qlen = 0; /* Reset interrupt counter */
- spin_unlock_irqrestore(&dmap->lock,flags);
+ spin_unlock_irqrestore(&dmap_in->lock,flags);
if (copy_to_user(arg, &cinfo, sizeof(cinfo)))
return -EFAULT;
return 0;
@@ -891,7 +902,7 @@
if (!(audio_devs[dev]->open_mode & OPEN_WRITE))
return -EINVAL;
- spin_lock_irqsave(&dmap->lock,flags);
+ spin_lock_irqsave(&dmap_out->lock,flags);
cinfo.bytes = dmap_out->byte_counter;
cinfo.ptr = DMAbuf_get_buffer_pointer(dev, dmap_out, DMODE_OUTPUT) & ~3;
if (cinfo.ptr < dmap_out->fragment_size && dmap_out->qhead != 0)
@@ -900,7 +911,7 @@
cinfo.bytes += cinfo.ptr;
if (dmap_out->mapping_flags & DMA_MAP_MAPPED)
dmap_out->qlen = 0; /* Reset interrupt counter */
- spin_unlock_irqrestore(&dmap->lock,flags);
+ spin_unlock_irqrestore(&dmap_out->lock,flags);
if (copy_to_user(arg, &cinfo, sizeof(cinfo)))
return -EFAULT;
return 0;
@@ -913,7 +924,7 @@
ret=0;
break;
}
- spin_lock_irqsave(&dmap->lock,flags);
+ spin_lock_irqsave(&dmap_out->lock,flags);
/* Compute number of bytes that have been played */
count = DMAbuf_get_buffer_pointer (dev, dmap_out, DMODE_OUTPUT);
if (count < dmap_out->fragment_size && dmap_out->qhead != 0)
@@ -923,7 +934,7 @@
count = dmap_out->user_counter - count;
if (count < 0)
count = 0;
- spin_unlock_irqrestore(&dmap->lock,flags);
+ spin_unlock_irqrestore(&dmap_out->lock,flags);
ret = count;
break;
diff -Nur vanilla-2.5.39/sound/oss/dmasound/dmasound.h linux-2.5.39/sound/oss/dmasound/dmasound.h
--- vanilla-2.5.39/sound/oss/dmasound/dmasound.h Sat Apr 20 18:25:19 2002
+++ linux-2.5.39/sound/oss/dmasound/dmasound.h Sun Sep 29 01:38:50 2002
@@ -166,6 +166,7 @@
int treble;
int gain;
int minDev; /* minor device number currently open */
+ spinlock_t lock;
};
extern struct sound_settings dmasound;
diff -Nur vanilla-2.5.39/sound/oss/dmasound/dmasound_atari.c linux-2.5.39/sound/oss/dmasound/dmasound_atari.c
--- vanilla-2.5.39/sound/oss/dmasound/dmasound_atari.c Sat Aug 10 00:03:13 2002
+++ linux-2.5.39/sound/oss/dmasound/dmasound_atari.c Sun Sep 29 01:38:50 2002
@@ -19,7 +19,7 @@
#include <linux/init.h>
#include <linux/soundcard.h>
#include <linux/mm.h>
-
+#include <linux/spinlock.h>
#include <asm/pgalloc.h>
#include <asm/uaccess.h>
#include <asm/atariints.h>
@@ -1262,7 +1262,7 @@
return;
}
#endif
-
+ spin_lock(&dmasound.lock);
if (write_sq_ignore_int && is_falcon) {
/* ++TeSche: Falcon only: ignore first irq because it comes
* immediately after starting a frame. after that, irqs come
@@ -1314,6 +1314,7 @@
/* We are not playing after AtaPlay(), so there
is nothing to play any more. Wake up a process
waiting for audio output to drain. */
+ spin_unlock(&dmasound.lock);
}
@@ -1349,14 +1350,15 @@
static int AtaMixerIoctl(u_int cmd, u_long arg)
{
int data;
+ unsigned long flags;
switch (cmd) {
case SOUND_MIXER_READ_SPEAKER:
if (is_falcon || MACH_IS_TT) {
int porta;
- cli();
+ spin_lock_irqsave(&dmasound.lock, flags);
sound_ym.rd_data_reg_sel = 14;
porta = sound_ym.rd_data_reg_sel;
- sti();
+ spin_unlock_irqrestore(&dmasound.lock, flags);
return IOCTL_OUT(arg, porta & 0x40 ? 0 : 100);
}
break;
@@ -1367,12 +1369,12 @@
if (is_falcon || MACH_IS_TT) {
int porta;
IOCTL_IN(arg, data);
- cli();
+ spin_lock_irqsave(&dmasound.lock, flags);
sound_ym.rd_data_reg_sel = 14;
porta = (sound_ym.rd_data_reg_sel & ~0x40) |
(data < 50 ? 0x40 : 0);
sound_ym.wd_data = porta;
- sti();
+ spin_unlock_irqrestore(&dmasound.lock, flags);
return IOCTL_OUT(arg, porta & 0x40 ? 0 : 100);
}
}
diff -Nur vanilla-2.5.39/sound/oss/dmasound/dmasound_awacs.c linux-2.5.39/sound/oss/dmasound/dmasound_awacs.c
--- vanilla-2.5.39/sound/oss/dmasound/dmasound_awacs.c Sat Aug 10 00:03:13 2002
+++ linux-2.5.39/sound/oss/dmasound/dmasound_awacs.c Sun Sep 29 01:38:50 2002
@@ -66,6 +66,7 @@
#include <linux/tty.h>
#include <linux/vt_kern.h>
#include <linux/irq.h>
+#include <linux/spinlock.h>
#include <linux/kmod.h>
#include <asm/semaphore.h>
#ifdef CONFIG_ADB_CUDA
@@ -397,6 +398,7 @@
static void
headphone_intr(int irq, void *devid, struct pt_regs *regs)
{
+ spin_lock(&dmasound.lock);
if (read_audio_gpio(gpio_headphone_detect) == gpio_headphone_detect_pol) {
printk(KERN_INFO "Audio jack plugged, muting speakers.\n");
write_audio_gpio(gpio_amp_mute, gpio_amp_mute_pol);
@@ -406,6 +408,7 @@
write_audio_gpio(gpio_amp_mute, !gpio_amp_mute_pol);
write_audio_gpio(gpio_headphone_mute, gpio_headphone_mute_pol);
}
+ spin_unlock(&dmasound.lock);
}
@@ -804,7 +807,7 @@
/* CHECK: how much of this *really* needs IRQs masked? */
- save_flags(flags); cli();
+ spin_lock_irqsave(&dmasound.lock, flags);
count = 300 ; /* > two cycles at the lowest sample rate */
/* what we want to send next */
@@ -871,7 +874,7 @@
out_le32(&awacs_txdma->control, ((RUN|WAKE) << 16) + (RUN|WAKE));
++write_sq.active;
}
- restore_flags(flags);
+ spin_unlock_irqrestore(&dmasound.lock, flags);
}
static void PMacPlay(void)
@@ -889,14 +892,14 @@
if (read_sq.active)
return;
- save_flags(flags); cli();
+ spin_lock_irqsave(&dmasound.lock, flags);
/* This is all we have to do......Just start it up.
*/
out_le32(&awacs_rxdma->control, ((RUN|WAKE) << 16) + (RUN|WAKE));
read_sq.active = 1;
- restore_flags(flags);
+ spin_unlock_irqrestore(&dmasound.lock, flags);
}
/* if the TX status comes up "DEAD" - reported on some Power Computing machines
@@ -929,6 +932,7 @@
/* != 0 when we are dealing with a DEAD xfer */
static int emergency_in_use = 0 ;
+ spin_lock(&dmasound.lock);
while (write_sq.active > 0) { /* we expect to have done something*/
if (emergency_in_use) /* we are dealing with DEAD xfer */
cp = emergency_dbdma_cmd ;
@@ -1004,6 +1008,7 @@
/* make the wake-on-empty conditional on syncing */
if (!write_sq.active && (write_sq.syncing & 1))
WAKE_UP(write_sq.sync_queue); /* any time we're empty */
+ spin_unlock(&dmasound.lock);
}
@@ -1025,6 +1030,7 @@
if (read_sq.active == 0)
return;
+ spin_lock(&dmasound.lock);
/* Check multiple buffers in case we were held off from
* interrupt processing for a long time. Geeze, I really hope
* this doesn't happen.
@@ -1056,6 +1062,7 @@
/* should complete clearing the DEAD status */
out_le32(&awacs_rxdma->control,
((RUN|WAKE) << 16) + (RUN|WAKE));
+ spin_unlock(&dmasound.lock);
return; /* try this block again */
}
/* Clear status and move on to next buffer.
@@ -1083,13 +1090,16 @@
}
WAKE_UP(read_sq.action_queue);
+ spin_unlock(&dmasound.lock);
}
static void
pmac_awacs_intr(int irq, void *devid, struct pt_regs *regs)
{
- int ctrl = in_le32(&awacs->control);
+ int ctrl;
+ spin_lock(&dmasound.lock);
+ ctrl = in_le32(&awacs->control);
if (ctrl & MASK_PORTCHG) {
/* do something when headphone is plugged/unplugged? */
@@ -1102,6 +1112,7 @@
}
/* Writing 1s to the CNTLERR and PORTCHG bits clears them... */
out_le32(&awacs->control, ctrl);
+ spin_unlock(&dmasound.lock);
}
static void
@@ -1125,7 +1136,7 @@
unsigned long flags;
int count = 600 ; /* > four samples at lowest rate */
- save_flags(flags); cli();
+ spin_lock_irqsave(&dmasound.lock, flags);
if (beep_playing) {
st_le16(&beep_dbdma_cmd->command, DBDMA_STOP);
out_le32(&awacs_txdma->control, (RUN|PAUSE|FLUSH|WAKE) << 16);
@@ -1141,7 +1152,7 @@
out_le32(&awacs->byteswap, 0);
beep_playing = 0;
}
- restore_flags(flags);
+ spin_unlock_irqrestore(&dmasound.lock, flags);
}
static struct timer_list beep_timer = {
@@ -1189,19 +1200,19 @@
return;
#endif
}
- save_flags(flags); cli();
+ spin_lock_irqsave(&dmasound.lock, flags);
del_timer(&beep_timer);
if (ticks) {
beep_timer.expires = jiffies + ticks;
add_timer(&beep_timer);
}
if (beep_playing || write_sq.active || beep_buf == NULL) {
- restore_flags(flags);
+ spin_unlock_irqrestore(&dmasound.lock, flags);
return; /* too hard, sorry :-( */
}
beep_playing = 1;
st_le16(&beep_dbdma_cmd->command, OUTPUT_MORE + BR_ALWAYS);
- restore_flags(flags);
+ spin_unlock_irqrestore(&dmasound.lock, flags);
if (hz == beep_hz_cache && beep_vol == beep_volume_cache) {
nsamples = beep_nsamples_cache;
@@ -1227,7 +1238,7 @@
st_le32(&beep_dbdma_cmd->phy_addr, virt_to_bus(beep_buf));
awacs_beep_state = 1;
- save_flags(flags); cli();
+ spin_lock_irqsave(&dmasound.lock, flags);
if (beep_playing) { /* i.e. haven't been terminated already */
int count = 300 ;
out_le32(&awacs_txdma->control, (RUN|WAKE|FLUSH|PAUSE) << 16);
@@ -1242,7 +1253,7 @@
(void)in_le32(&awacs_txdma->status);
out_le32(&awacs_txdma->control, RUN | (RUN << 16));
}
- restore_flags(flags);
+ spin_unlock_irqrestore(&dmasound.lock, flags);
}
/* used in init and for wake-up */
@@ -1430,7 +1441,7 @@
unsigned long flags;
/* should have timeouts here */
- save_flags(flags); cli();
+ spin_lock_irqsave(&dmasound.lock, flags);
out_le32(&awacs->codec_ctrl, addr + 0x100000);
awacs_burgundy_busy_wait();
@@ -1452,7 +1463,7 @@
awacs_burgundy_extend_wait();
val += ((in_le32(&awacs->codec_stat)>>4) & 0xff) <<24;
- restore_flags(flags);
+ spin_unlock_irqrestore(&dmasound.lock, flags);
return val;
}
@@ -1472,14 +1483,14 @@
unsigned long flags;
/* should have timeouts here */
- save_flags(flags); cli();
+ spin_lock_irqsave(&dmasound.lock, flags);
out_le32(&awacs->codec_ctrl, addr + 0x100000);
awacs_burgundy_busy_wait();
awacs_burgundy_extend_wait();
val += (in_le32(&awacs->codec_stat) >> 4) & 0xff;
- restore_flags(flags);
+ spin_unlock_irqrestore(&dmasound.lock, flags);
return val;
}
diff -Nur vanilla-2.5.39/sound/oss/dmasound/dmasound_core.c linux-2.5.39/sound/oss/dmasound/dmasound_core.c
--- vanilla-2.5.39/sound/oss/dmasound/dmasound_core.c Sat Aug 10 00:03:13 2002
+++ linux-2.5.39/sound/oss/dmasound/dmasound_core.c Sun Sep 29 01:38:50 2002
@@ -597,9 +597,9 @@
is drained - and if we get here in time then it does not apply.
*/
- save_flags(flags) ; cli() ;
+ spin_lock_irqsave(&dmasound.lock, flags);
write_sq.syncing &= ~2 ; /* take out POST status */
- restore_flags(flags) ;
+ spin_unlock_irqrestore(&dmasound.lock, flags);
if (write_sq.count > 0 &&
(bLeft = write_sq.block_size-write_sq.rear_size) > 0) {
@@ -1347,6 +1347,7 @@
if (dmasound.mach.record)
sq_fops.read = sq_read ;
#endif
+ spin_lock_init(&dmasound.lock);
sq_unit = register_sound_dsp(&sq_fops, -1);
if (sq_unit < 0) {
printk(KERN_ERR "dmasound_core: couldn't register fops\n") ;
diff -Nur vanilla-2.5.39/sound/oss/dmasound/dmasound_q40.c linux-2.5.39/sound/oss/dmasound/dmasound_q40.c
--- vanilla-2.5.39/sound/oss/dmasound/dmasound_q40.c Sat Aug 10 00:03:13 2002
+++ linux-2.5.39/sound/oss/dmasound/dmasound_q40.c Sun Sep 29 01:38:50 2002
@@ -459,28 +459,32 @@
*/
return;
}
- save_flags(flags); cli();
+ spin_lock_irqsave(&dmasound.lock, flags);
Q40PlayNextFrame(1);
- restore_flags(flags);
+ spin_unlock_irqrestore_flags(&dmasound.lock, flags);
}
static void Q40StereoInterrupt(int irq, void *dummy, struct pt_regs *fp)
{
+ spin_lock(&dmasound.lock);
if (q40_sc>1){
*DAC_LEFT=*q40_pp++;
*DAC_RIGHT=*q40_pp++;
q40_sc -=2;
master_outb(1,SAMPLE_CLEAR_REG);
}else Q40Interrupt();
+ spin_unlock(&dmasound.lock);
}
static void Q40MonoInterrupt(int irq, void *dummy, struct pt_regs *fp)
{
+ spin_lock(&dmasound.lock);
if (q40_sc>0){
*DAC_LEFT=*q40_pp;
*DAC_RIGHT=*q40_pp++;
q40_sc --;
master_outb(1,SAMPLE_CLEAR_REG);
}else Q40Interrupt();
+ spin_unlock(&dmasound.lock);
}
static void Q40Interrupt(void)
{
diff -Nur vanilla-2.5.39/sound/oss/gus_midi.c linux-2.5.39/sound/oss/gus_midi.c
--- vanilla-2.5.39/sound/oss/gus_midi.c Sat Apr 20 18:25:20 2002
+++ linux-2.5.39/sound/oss/gus_midi.c Sun Sep 29 01:38:50 2002
@@ -16,6 +16,7 @@
*/
#include <linux/init.h>
+#include <linux/spinlock.h>
#include "sound_config.h"
#include "gus.h"
@@ -25,7 +26,7 @@
static int my_dev;
static int output_used = 0;
static volatile unsigned char gus_midi_control;
-
+static spinlock_t lock=SPIN_LOCK_UNLOCKED;
static void (*midi_input_intr) (int dev, unsigned char data);
static unsigned char tmp_queue[256];
@@ -75,8 +76,7 @@
output_used = 1;
- save_flags(flags);
- cli();
+ spin_lock_irqsave(&lock, flags);
if (GUS_MIDI_STATUS() & MIDI_XMIT_EMPTY)
{
@@ -92,7 +92,7 @@
outb((gus_midi_control), u_MidiControl);
}
- restore_flags(flags);
+ spin_unlock_irqrestore(&lock,flags);
return ok;
}
@@ -113,16 +113,14 @@
/*
* Drain the local queue first
*/
-
- save_flags(flags);
- cli();
+ spin_lock_irqsave(&lock, flags);
while (qlen && dump_to_midi(tmp_queue[qhead]))
{
qlen--;
qhead++;
}
- restore_flags(flags);
+ spin_unlock_irqrestore(&lock,flags);
/*
* Output the byte if the local queue is empty.
@@ -142,14 +140,13 @@
return 0; /*
* Local queue full
*/
- save_flags(flags);
- cli();
+ spin_lock_irqsave(&lock, flags);
tmp_queue[qtail] = midi_byte;
qlen++;
qtail++;
- restore_flags(flags);
+ spin_unlock_irqrestore(&lock,flags);
return 1;
}
@@ -174,15 +171,14 @@
if (!output_used)
return 0;
- save_flags(flags);
- cli();
+ spin_lock_irqsave(&lock, flags);
if (qlen && dump_to_midi(tmp_queue[qhead]))
{
qlen--;
qhead++;
}
- restore_flags(flags);
+ spin_unlock_irqrestore(&lock,flags);
return (qlen > 0) | !(GUS_MIDI_STATUS() & MIDI_XMIT_EMPTY);
}
@@ -226,11 +222,9 @@
void gus_midi_interrupt(int dummy)
{
volatile unsigned char stat, data;
- unsigned long flags;
int timeout = 10;
- save_flags(flags);
- cli();
+ spin_lock(&lock);
while (timeout-- > 0 && (stat = GUS_MIDI_STATUS()) & (MIDI_RCV_FULL | MIDI_XMIT_EMPTY))
{
@@ -258,5 +252,5 @@
}
}
}
- restore_flags(flags);
+ spin_unlock(&lock);
}
diff -Nur vanilla-2.5.39/sound/oss/gus_wave.c linux-2.5.39/sound/oss/gus_wave.c
--- vanilla-2.5.39/sound/oss/gus_wave.c Sat Aug 10 00:04:14 2002
+++ linux-2.5.39/sound/oss/gus_wave.c Sun Sep 29 01:38:50 2002
@@ -19,6 +19,7 @@
#include <linux/init.h>
#include <linux/config.h>
+#include <linux/spinlock.h>
#define GUSPNP_AUTODETECT
@@ -138,6 +139,7 @@
static unsigned long pcm_current_buf;
static int pcm_current_count;
static int pcm_current_intrflag;
+static spinlock_t lock=SPIN_LOCK_UNLOCKED;
extern int *gus_osp;
@@ -226,8 +228,6 @@
{ /* Writes a byte to the DRAM */
unsigned long flags;
- save_flags(flags);
- cli();
outb((0x43), u_Command);
outb((addr & 0xff), u_DataLo);
outb(((addr >> 8) & 0xff), u_DataHi);
@@ -235,16 +235,12 @@
outb((0x44), u_Command);
outb(((addr >> 16) & 0xff), u_DataHi);
outb((data), u_DRAMIO);
- restore_flags(flags);
}
static unsigned char gus_peek(long addr)
{ /* Reads a byte from the DRAM */
- unsigned long flags;
unsigned char tmp;
- save_flags(flags);
- cli();
outb((0x43), u_Command);
outb((addr & 0xff), u_DataLo);
outb(((addr >> 8) & 0xff), u_DataHi);
@@ -252,35 +248,23 @@
outb((0x44), u_Command);
outb(((addr >> 16) & 0xff), u_DataHi);
tmp = inb(u_DRAMIO);
- restore_flags(flags);
return tmp;
}
void gus_write8(int reg, unsigned int data)
{ /* Writes to an indirect register (8 bit) */
- unsigned long flags;
-
- save_flags(flags);
- cli();
-
outb((reg), u_Command);
outb(((unsigned char) (data & 0xff)), u_DataHi);
-
- restore_flags(flags);
}
static unsigned char gus_read8(int reg)
{
/* Reads from an indirect register (8 bit). Offset 0x80. */
- unsigned long flags;
unsigned char val;
- save_flags(flags);
- cli();
outb((reg | 0x80), u_Command);
val = inb(u_DataHi);
- restore_flags(flags);
return val;
}
@@ -288,14 +272,10 @@
static unsigned char gus_look8(int reg)
{
/* Reads from an indirect register (8 bit). No additional offset. */
- unsigned long flags;
unsigned char val;
- save_flags(flags);
- cli();
outb((reg), u_Command);
val = inb(u_DataHi);
- restore_flags(flags);
return val;
}
@@ -303,54 +283,35 @@
static void gus_write16(int reg, unsigned int data)
{
/* Writes to an indirect register (16 bit) */
- unsigned long flags;
-
- save_flags(flags);
- cli();
-
outb((reg), u_Command);
outb(((unsigned char) (data & 0xff)), u_DataLo);
outb(((unsigned char) ((data >> 8) & 0xff)), u_DataHi);
-
- restore_flags(flags);
}
static unsigned short gus_read16(int reg)
{
/* Reads from an indirect register (16 bit). Offset 0x80. */
- unsigned long flags;
unsigned char hi, lo;
- save_flags(flags);
- cli();
-
outb((reg | 0x80), u_Command);
lo = inb(u_DataLo);
hi = inb(u_DataHi);
- restore_flags(flags);
-
return ((hi << 8) & 0xff00) | lo;
}
static unsigned short gus_look16(int reg)
{
/* Reads from an indirect register (16 bit). No additional offset. */
- unsigned long flags;
unsigned char hi, lo;
- save_flags(flags);
- cli();
-
outb((reg), u_Command);
lo = inb(u_DataLo);
hi = inb(u_DataHi);
- restore_flags(flags);
-
return ((hi << 8) & 0xff00) | lo;
}
@@ -358,10 +319,7 @@
{
/* Writes an 24 bit memory address */
unsigned long hold_address;
- unsigned long flags;
- save_flags(flags);
- cli();
if (is16bit)
{
if (iw_mode)
@@ -389,7 +347,6 @@
gus_write16(reg, (unsigned short) ((address >> 7) & 0xffff));
gus_write16(reg + 1, (unsigned short) ((address << 9) & 0xffff)
+ (frac << 5));
- restore_flags(flags);
}
static void gus_select_voice(int voice)
@@ -514,8 +471,7 @@
{
unsigned long flags;
- save_flags(flags);
- cli();
+ spin_lock_irqsave(&lock,flags);
gus_select_voice(voice);
gus_voice_volume(0);
gus_voice_off();
@@ -524,7 +480,7 @@
gus_write8(0x0d, 0x03); /* Ramping off */
voice_alloc->map[voice] = 0;
voice_alloc->alloc_times[voice] = 0;
- restore_flags(flags);
+ spin_unlock_irqrestore(&lock,flags);
}
@@ -558,11 +514,10 @@
if (voices[voice].mode & WAVE_SUSTAIN_ON && voices[voice].env_phase == 2)
{
- save_flags(flags);
- cli();
+ spin_lock_irqsave(&lock,flags);
gus_select_voice(voice);
gus_rampoff();
- restore_flags(flags);
+ spin_unlock_irqrestore(&lock,flags);
return;
/*
* Sustain phase begins. Continue envelope after receiving note off.
@@ -580,8 +535,7 @@
vol = voices[voice].initial_volume * voices[voice].env_offset[phase] / 255;
rate = voices[voice].env_rate[phase];
- save_flags(flags);
- cli();
+ spin_lock_irqsave(&lock,flags);
gus_select_voice(voice);
gus_voice_volume(prev_vol);
@@ -593,7 +547,7 @@
if (((vol - prev_vol) / 64) == 0) /* No significant volume change */
{
- restore_flags(flags);
+ spin_unlock_irqrestore(&lock,flags);
step_envelope(voice); /* Continue the envelope on the next step */
return;
}
@@ -612,7 +566,7 @@
gus_rampon(0x60); /* Decreasing volume, with IRQ */
}
voices[voice].current_volume = vol;
- restore_flags(flags);
+ spin_unlock_irqrestore(&lock,flags);
}
static void init_envelope(int voice)
@@ -623,7 +577,7 @@
step_envelope(voice);
}
-static void start_release(int voice, long int flags)
+static void start_release(int voice)
{
if (gus_read8(0x00) & 0x03)
return; /* Voice already stopped */
@@ -635,7 +589,6 @@
voices[voice].mode &= ~WAVE_SUSTAIN_ON;
gus_rampoff();
- restore_flags(flags);
step_envelope(voice);
}
@@ -644,23 +597,22 @@
int instr_no = sample_map[voice], is16bits;
long int flags;
- save_flags(flags);
- cli();
+ spin_lock_irqsave(&lock,flags);
gus_select_voice(voice);
if (instr_no < 0 || instr_no > MAX_SAMPLE)
{
gus_write8(0x00, 0x03); /* Hard stop */
voice_alloc->map[voice] = 0;
- restore_flags(flags);
+ spin_unlock_irqrestore(&lock,flags);
return;
}
is16bits = (samples[instr_no].mode & WAVE_16_BITS) ? 1 : 0; /* 8 or 16 bits */
if (voices[voice].mode & WAVE_ENVELOPES)
{
- start_release(voice, flags);
- restore_flags(flags);
+ start_release(voice);
+ spin_unlock_irqrestore(&lock,flags);
return;
}
/*
@@ -671,14 +623,14 @@
gus_voice_off();
gus_rampoff();
gus_voice_init(voice);
- restore_flags(flags);
+ spin_unlock_irqrestore(&lock,flags);
return;
}
gus_ramp_range(65, 4030);
gus_ramp_rate(2, 4);
gus_rampon(0x40 | 0x20); /* Down, once, with IRQ */
voices[voice].volume_irq_mode = VMODE_HALT;
- restore_flags(flags);
+ spin_unlock_irqrestore(&lock,flags);
}
static void gus_reset(void)
@@ -710,8 +662,7 @@
0, 1, 0, 2, 0, 3, 4, 5
};
- save_flags(flags);
- cli();
+ spin_lock_irqsave(&lock,flags);
gus_write8(0x4c, 0); /* Reset GF1 */
gus_delay();
gus_delay();
@@ -850,7 +801,7 @@
if (iw_mode)
gus_write8(0x19, gus_read8(0x19) | 0x01);
- restore_flags(flags);
+ spin_unlock_irqrestore(&lock,flags);
}
@@ -1159,17 +1110,16 @@
{
unsigned long flags;
- save_flags(flags);
- cli();
+ spin_lock_irqsave(&lock,flags);
/* voice_alloc->map[voice] = 0xffff; */
if (voices[voice].volume_irq_mode == VMODE_START_NOTE)
{
voices[voice].kill_pending = 1;
- restore_flags(flags);
+ spin_unlock_irqrestore(&lock,flags);
}
else
{
- restore_flags(flags);
+ spin_unlock_irqrestore(&lock,flags);
gus_voice_fade(voice);
}
@@ -1227,8 +1177,7 @@
compute_volume(voice, volume);
voices[voice].current_volume = voices[voice].initial_volume;
- save_flags(flags);
- cli();
+ spin_lock_irqsave(&lock,flags);
/*
* CAUTION! Interrupts disabled. Enable them before returning
*/
@@ -1242,7 +1191,7 @@
{
gus_rampoff();
gus_voice_volume(target);
- restore_flags(flags);
+ spin_unlock_irqrestore(&lock,flags);
return;
}
if (ramp_time == FAST_RAMP)
@@ -1255,7 +1204,7 @@
{
gus_rampoff();
gus_voice_volume(target);
- restore_flags(flags);
+ spin_unlock_irqrestore(&lock,flags);
return;
}
if (target > curr)
@@ -1273,7 +1222,7 @@
gus_ramp_range(target, curr);
gus_rampon(0x40); /* Ramp down, once, no irq */
}
- restore_flags(flags);
+ spin_unlock_irqrestore(&lock,flags);
}
static void dynamic_volume_change(int voice)
@@ -1281,11 +1230,10 @@
unsigned char status;
unsigned long flags;
- save_flags(flags);
- cli();
+ spin_lock_irqsave(&lock,flags);
gus_select_voice(voice);
status = gus_read8(0x00); /* Get voice status */
- restore_flags(flags);
+ spin_unlock_irqrestore(&lock,flags);
if (status & 0x03)
return; /* Voice was not running */
@@ -1300,11 +1248,10 @@
* Voice is running and has envelopes.
*/
- save_flags(flags);
- cli();
+ spin_lock_irqsave(&lock,flags);
gus_select_voice(voice);
status = gus_read8(0x0d); /* Ramping status */
- restore_flags(flags);
+ spin_unlock_irqrestore(&lock,flags);
if (status & 0x03) /* Sustain phase? */
{
@@ -1336,11 +1283,10 @@
freq = compute_finetune(voices[voice].orig_freq, value, voices[voice].bender_range, 0);
voices[voice].current_freq = freq;
- save_flags(flags);
- cli();
+ spin_lock_irqsave(&lock,flags);
gus_select_voice(voice);
gus_voice_freq(freq);
- restore_flags(flags);
+ spin_unlock_irqrestore(&lock,flags);
}
break;
@@ -1497,17 +1443,12 @@
((sample_ptrs[sample] + samples[sample].len) / GUS_BANK_SIZE))
printk(KERN_ERR "GUS: Sample address error\n");
}
- /*************************************************************************
- * CAUTION! Interrupts disabled. Don't return before enabling
- *************************************************************************/
-
- save_flags(flags);
- cli();
+ spin_lock_irqsave(&lock,flags);
gus_select_voice(voice);
gus_voice_off();
gus_rampoff();
- restore_flags(flags);
+ spin_unlock_irqrestore(&lock,flags);
if (voices[voice].mode & WAVE_ENVELOPES)
{
@@ -1519,8 +1460,7 @@
compute_and_set_volume(voice, volume, 0);
}
- save_flags(flags);
- cli();
+ spin_lock_irqsave(&lock,flags);
gus_select_voice(voice);
if (samples[sample].mode & WAVE_LOOP_BACK)
@@ -1560,7 +1500,7 @@
gus_voice_freq(freq);
gus_voice_balance(pan);
gus_voice_on(mode);
- restore_flags(flags);
+ spin_unlock_irqrestore(&lock,flags);
return 0;
}
@@ -1577,8 +1517,7 @@
int mode;
int ret_val = 0;
- save_flags(flags);
- cli();
+ spin_lock_irqsave(&lock,flags);
if (note_num == 255)
{
if (voices[voice].volume_irq_mode == VMODE_START_NOTE)
@@ -1604,11 +1543,10 @@
if (voices[voice].sample_pending >= 0)
{
- restore_flags(flags); /* Run temporarily with interrupts enabled */
+ spin_unlock_irqrestore(&lock,flags); /* Run temporarily with interrupts enabled */
guswave_set_instr(voices[voice].dev_pending, voice, voices[voice].sample_pending);
voices[voice].sample_pending = -1;
- save_flags(flags);
- cli();
+ spin_lock_irqsave(&lock,flags);
gus_select_voice(voice); /* Reselect the voice (just to be sure) */
}
if ((mode & 0x01) || (int) ((gus_read16(0x09) >> 4) < (unsigned) 2065))
@@ -1628,7 +1566,7 @@
gus_rampon(0x20 | 0x40); /* Ramp down, once, irq */
}
}
- restore_flags(flags);
+ spin_unlock_irqrestore(&lock,flags);
return ret_val;
}
@@ -1871,9 +1809,7 @@
blk_sz))
return -EFAULT;
- save_flags(flags);
- cli();
- /******** INTERRUPTS DISABLED NOW ********/
+ spin_lock_irqsave(&lock,flags);
gus_write8(0x41, 0); /* Disable GF1 DMA */
DMAbuf_start_dma(gus_devnum, audio_devs[gus_devnum]->dmap_out->raw_buf_phys,
blk_sz, DMA_MODE_WRITE);
@@ -1924,16 +1860,15 @@
if (audio_devs[gus_devnum]->dmap_out->dma > 3)
dma_command |= 0x04; /* 16 bit DMA _channel_ */
- gus_write8(0x41, dma_command); /* Lets go luteet (=bugs) */
-
/*
* Sleep here until the DRAM DMA done interrupt is served
*/
active_device = GUS_DEV_WAVE;
+ gus_write8(0x41, dma_command); /* Lets go luteet (=bugs) */
+ spin_unlock_irqrestore(&lock,flags); /* opens a race */
if (!interruptible_sleep_on_timeout(&dram_sleeper, HZ))
printk("GUS: DMA Transfer timed out\n");
- restore_flags(flags);
}
/*
@@ -1972,11 +1907,10 @@
switch (cmd)
{
case _GUS_NUMVOICES:
- save_flags(flags);
- cli();
+ spin_lock_irqsave(&lock,flags);
gus_select_voice(voice);
gus_select_max_voices(p1);
- restore_flags(flags);
+ spin_unlock_irqrestore(&lock,flags);
break;
case _GUS_VOICESAMPLE:
@@ -1984,20 +1918,18 @@
break;
case _GUS_VOICEON:
- save_flags(flags);
- cli();
+ spin_lock_irqsave(&lock,flags);
gus_select_voice(voice);
p1 &= ~0x20; /* Don't allow interrupts */
gus_voice_on(p1);
- restore_flags(flags);
+ spin_unlock_irqrestore(&lock,flags);
break;
case _GUS_VOICEOFF:
- save_flags(flags);
- cli();
+ spin_lock_irqsave(&lock,flags);
gus_select_voice(voice);
gus_voice_off();
- restore_flags(flags);
+ spin_unlock_irqrestore(&lock,flags);
break;
case _GUS_VOICEFADE:
@@ -2005,36 +1937,32 @@
break;
case _GUS_VOICEMODE:
- save_flags(flags);
- cli();
+ spin_lock_irqsave(&lock,flags);
gus_select_voice(voice);
p1 &= ~0x20; /* Don't allow interrupts */
gus_voice_mode(p1);
- restore_flags(flags);
+ spin_unlock_irqrestore(&lock,flags);
break;
case _GUS_VOICEBALA:
- save_flags(flags);
- cli();
+ spin_lock_irqsave(&lock,flags);
gus_select_voice(voice);
gus_voice_balance(p1);
- restore_flags(flags);
+ spin_unlock_irqrestore(&lock,flags);
break;
case _GUS_VOICEFREQ:
- save_flags(flags);
- cli();
+ spin_lock_irqsave(&lock,flags);
gus_select_voice(voice);
gus_voice_freq(plong);
- restore_flags(flags);
+ spin_unlock_irqrestore(&lock,flags);
break;
case _GUS_VOICEVOL:
- save_flags(flags);
- cli();
+ spin_lock_irqsave(&lock,flags);
gus_select_voice(voice);
gus_voice_volume(p1);
- restore_flags(flags);
+ spin_unlock_irqrestore(&lock,flags);
break;
case _GUS_VOICEVOL2: /* Just update the software voice level */
@@ -2044,53 +1972,48 @@
case _GUS_RAMPRANGE:
if (voices[voice].mode & WAVE_ENVELOPES)
break; /* NO-NO */
- save_flags(flags);
- cli();
+ spin_lock_irqsave(&lock,flags);
gus_select_voice(voice);
gus_ramp_range(p1, p2);
- restore_flags(flags);
+ spin_unlock_irqrestore(&lock,flags);
break;
case _GUS_RAMPRATE:
if (voices[voice].mode & WAVE_ENVELOPES)
break; /* NJET-NJET */
- save_flags(flags);
- cli();
+ spin_lock_irqsave(&lock,flags);
gus_select_voice(voice);
gus_ramp_rate(p1, p2);
- restore_flags(flags);
+ spin_unlock_irqrestore(&lock,flags);
break;
case _GUS_RAMPMODE:
if (voices[voice].mode & WAVE_ENVELOPES)
break; /* NO-NO */
- save_flags(flags);
- cli();
+ spin_lock_irqsave(&lock,flags);
gus_select_voice(voice);
p1 &= ~0x20; /* Don't allow interrupts */
gus_ramp_mode(p1);
- restore_flags(flags);
+ spin_unlock_irqrestore(&lock,flags);
break;
case _GUS_RAMPON:
if (voices[voice].mode & WAVE_ENVELOPES)
break; /* EI-EI */
- save_flags(flags);
- cli();
+ spin_lock_irqsave(&lock,flags);
gus_select_voice(voice);
p1 &= ~0x20; /* Don't allow interrupts */
gus_rampon(p1);
- restore_flags(flags);
+ spin_unlock_irqrestore(&lock,flags);
break;
case _GUS_RAMPOFF:
if (voices[voice].mode & WAVE_ENVELOPES)
break; /* NEJ-NEJ */
- save_flags(flags);
- cli();
+ spin_lock_irqsave(&lock,flags);
gus_select_voice(voice);
gus_rampoff();
- restore_flags(flags);
+ spin_unlock_irqrestore(&lock,flags);
break;
case _GUS_VOLUME_SCALE:
@@ -2099,11 +2022,10 @@
break;
case _GUS_VOICE_POS:
- save_flags(flags);
- cli();
+ spin_lock_irqsave(&lock,flags);
gus_select_voice(voice);
gus_set_voice_pos(voice, plong);
- restore_flags(flags);
+ spin_unlock_irqrestore(&lock,flags);
break;
default:
@@ -2294,13 +2216,12 @@
if (pcm_active && pcm_opened)
for (voice = 0; voice < gus_audio_channels; voice++)
{
- save_flags(flags);
- cli();
+ spin_lock_irqsave(&lock,flags);
gus_select_voice(voice);
gus_rampoff();
gus_voice_volume(1530 + (25 * gus_pcm_volume));
gus_ramp_range(65, 1530 + (25 * gus_pcm_volume));
- restore_flags(flags);
+ spin_unlock_irqrestore(&lock,flags);
}
}
@@ -2348,8 +2269,7 @@
if (chn == 0)
ramp_mode[chn] = 0x04; /* Enable rollover bit */
}
- save_flags(flags);
- cli();
+ spin_lock_irqsave(&lock,flags);
gus_select_voice(chn);
gus_voice_freq(speed);
@@ -2386,18 +2306,17 @@
0, is16bits); /* Loop end location */
else
mode[chn] |= 0x08; /* Enable looping */
- restore_flags(flags);
+ spin_unlock_irqrestore(&lock,flags);
}
for (chn = 0; chn < gus_audio_channels; chn++)
{
- save_flags(flags);
- cli();
+ spin_lock_irqsave(&lock,flags);
gus_select_voice(chn);
gus_write8(0x0d, ramp_mode[chn]);
if (iw_mode)
gus_write8(0x15, 0x00); /* Reset voice deactivate bit of SMSI */
gus_voice_on(mode[chn]);
- restore_flags(flags);
+ spin_unlock_irqrestore(&lock,flags);
}
pcm_active = 1;
}
@@ -2419,8 +2338,7 @@
unsigned char dma_command;
unsigned long address, hold_address;
- save_flags(flags);
- cli();
+ spin_lock_irqsave(&lock,flags);
count = total_count / gus_audio_channels;
@@ -2485,7 +2403,7 @@
active_device = GUS_DEV_PCM_CONTINUE;
}
- restore_flags(flags);
+ spin_unlock_irqrestore(&lock,flags);
}
static void gus_uninterleave8(char *buf, int l)
@@ -2547,8 +2465,7 @@
unsigned long flags;
unsigned char mode;
- save_flags(flags);
- cli();
+ spin_lock_irqsave(&lock,flags);
DMAbuf_start_dma(dev, buf, count, DMA_MODE_READ);
mode = 0xa0; /* DMA IRQ enabled, invert MSB */
@@ -2560,7 +2477,7 @@
mode |= 0x01; /* DMA enable */
gus_write8(0x49, mode);
- restore_flags(flags);
+ spin_unlock_irqrestore(&lock,flags);
}
static int gus_audio_prepare_for_input(int dev, int bsize, int bcount)
@@ -2656,11 +2573,10 @@
freq = compute_finetune(voices[voice].orig_freq, value - 8192, voices[voice].bender_range, 0);
voices[voice].current_freq = freq;
- save_flags(flags);
- cli();
+ spin_lock_irqsave(&lock,flags);
gus_select_voice(voice);
gus_voice_freq(freq);
- restore_flags(flags);
+ spin_unlock_irqrestore(&lock,flags);
}
static int guswave_alloc(int dev, int chn, int note, struct voice_alloc_info *alloc)
@@ -2741,8 +2657,7 @@
if (have_gus_max) /* Don't disturb GUS MAX */
return;
- save_flags(flags);
- cli();
+ spin_lock_irqsave(&lock,flags);
/*
* Enable channels having vol > 10%
@@ -2768,7 +2683,7 @@
mix_image |= mask & 0x07;
outb((mix_image), u_Mixer);
- restore_flags(flags);
+ spin_unlock_irqrestore(&lock,flags);
}
#define MIX_DEVS (SOUND_MASK_MIC|SOUND_MASK_LINE| \
@@ -2977,11 +2892,10 @@
* Versions < 3.6 don't have the digital ASIC. Try to probe it first.
*/
- save_flags(flags);
- cli();
+ spin_lock_irqsave(&lock,flags);
outb((0x20), gus_base + 0x0f);
val = inb(gus_base + 0x0f);
- restore_flags(flags);
+ spin_unlock_irqrestore(&lock,flags);
if (gus_pnp_flag || (val != 0xff && (val & 0x06))) /* Should be 0x02?? */
{
@@ -3206,15 +3120,13 @@
vfree(samples);
samples=NULL;
}
-
+/* called in interrupt context */
static void do_loop_irq(int voice)
{
unsigned char tmp;
int mode, parm;
- unsigned long flags;
- save_flags(flags);
- cli();
+ spin_lock(&lock);
gus_select_voice(voice);
tmp = gus_read8(0x00);
@@ -3290,7 +3202,7 @@
default:
break;
}
- restore_flags(flags);
+ spin_unlock(&lock);
}
static void do_volume_irq(int voice)
@@ -3299,8 +3211,7 @@
int mode, parm;
unsigned long flags;
- save_flags(flags);
- cli();
+ spin_lock_irqsave(&lock,flags);
gus_select_voice(voice);
tmp = gus_read8(0x0d);
@@ -3318,18 +3229,18 @@
case VMODE_HALT: /* Decay phase finished */
if (iw_mode)
gus_write8(0x15, 0x02); /* Set voice deactivate bit of SMSI */
- restore_flags(flags);
+ spin_unlock_irqrestore(&lock,flags);
gus_voice_init(voice);
break;
case VMODE_ENVELOPE:
gus_rampoff();
- restore_flags(flags);
+ spin_unlock_irqrestore(&lock,flags);
step_envelope(voice);
break;
case VMODE_START_NOTE:
- restore_flags(flags);
+ spin_unlock_irqrestore(&lock,flags);
guswave_start_note2(voices[voice].dev_pending, voice,
voices[voice].note_pending, voices[voice].volume_pending);
if (voices[voice].kill_pending)
@@ -3345,11 +3256,10 @@
break;
default:
- restore_flags(flags);
+ spin_unlock_irqrestore(&lock,flags);
}
- restore_flags(flags);
}
-
+/* called in irq context */
void gus_voice_irq(void)
{
unsigned long wave_ignore = 0, volume_ignore = 0;
diff -Nur vanilla-2.5.39/sound/oss/ics2101.c linux-2.5.39/sound/oss/ics2101.c
--- vanilla-2.5.39/sound/oss/ics2101.c Sat Apr 20 18:25:20 2002
+++ linux-2.5.39/sound/oss/ics2101.c Sun Sep 29 01:38:50 2002
@@ -15,6 +15,7 @@
* Bartlomiej Zolnierkiewicz : added __init to ics2101_mixer_init()
*/
#include <linux/init.h>
+#include <linux/spinlock.h>
#include "sound_config.h"
#include <linux/ultrasound.h>
@@ -28,6 +29,7 @@
extern int *gus_osp;
extern int gus_base;
+extern spinlock_t lock;
static int volumes[ICS_MIXDEVS];
static int left_fix[ICS_MIXDEVS] =
{1, 1, 1, 2, 1, 2};
@@ -85,13 +87,12 @@
attn_addr |= 0x03;
}
- save_flags(flags);
- cli();
+ spin_lock_irqsave(&lock, flags);
outb((ctrl_addr), u_MixSelect);
outb((selector[dev]), u_MixData);
outb((attn_addr), u_MixSelect);
outb(((unsigned char) vol), u_MixData);
- restore_flags(flags);
+ spin_unlock_irqrestore(&lock,flags);
}
static int set_volumes(int dev, int vol)
diff -Nur vanilla-2.5.39/sound/oss/v_midi.h linux-2.5.39/sound/oss/v_midi.h
--- vanilla-2.5.39/sound/oss/v_midi.h Sat Apr 20 18:25:21 2002
+++ linux-2.5.39/sound/oss/v_midi.h Sun Sep 29 01:38:50 2002
@@ -3,7 +3,7 @@
/* State variables */
int opened;
-
+ spinlock_t lock;
/* MIDI fields */
int my_mididev;
diff -Nur vanilla-2.5.39/sound/oss/wf_midi.c linux-2.5.39/sound/oss/wf_midi.c
--- vanilla-2.5.39/sound/oss/wf_midi.c Sat Apr 20 18:25:22 2002
+++ linux-2.5.39/sound/oss/wf_midi.c Sun Sep 29 01:38:50 2002
@@ -50,6 +50,7 @@
*/
#include <linux/init.h>
+#include <linux/spinlock.h>
#include "sound_config.h"
#include <linux/wavefront.h>
@@ -79,6 +80,7 @@
static struct wf_mpu_config *virt_dev = &devs[1];
static void start_uart_mode (void);
+static spinlock_t lock=SPIN_LOCK_UNLOCKED;
#define OUTPUT_READY 0x40
#define INPUT_AVAIL 0x80
@@ -365,8 +367,8 @@
}
if (mi->m_busy) return;
+ spin_lock(&lock);
mi->m_busy = 1;
- sti ();
if (!input_dev) {
input_dev = physical_dev;
@@ -406,6 +408,7 @@
} while (input_avail() && n-- > 0);
mi->m_busy = 0;
+ spin_unlock(&lock);
}
static int
@@ -486,18 +489,17 @@
for (timeout = 30000; timeout > 0 && !output_ready ();
timeout--);
- save_flags (flags);
- cli ();
+ spin_lock_irqsave(&lock,flags);
if (!output_ready ()) {
printk (KERN_WARNING "WF-MPU: Send switch "
"byte timeout\n");
- restore_flags (flags);
+ spin_unlock_irqrestore(&lock,flags);
return 0;
}
write_data (switchch);
- restore_flags (flags);
+ spin_unlock_irqrestore(&lock,flags);
}
lastoutdev = dev;
@@ -511,16 +513,15 @@
for (timeout = 30000; timeout > 0 && !output_ready (); timeout--);
- save_flags (flags);
- cli ();
+ spin_lock_irqsave(&lock,flags);
if (!output_ready ()) {
+ spin_unlock_irqrestore(&lock,flags);
printk (KERN_WARNING "WF-MPU: Send data timeout\n");
- restore_flags (flags);
return 0;
}
write_data (midi_byte);
- restore_flags (flags);
+ spin_unlock_irqrestore(&lock,flags);
return 1;
}
@@ -768,14 +769,13 @@
{
unsigned long flags;
- save_flags (flags);
- cli();
+ spin_lock_irqsave(&lock,flags);
wf_mpu_close (virt_dev->devno);
/* no synth on virt_dev, so no need to call wf_mpu_synth_close() */
phys_dev->isvirtual = 0;
- restore_flags (flags);
+ spin_unlock_irqrestore(&lock,flags);
return 0;
}
@@ -858,8 +858,7 @@
int ok, i;
unsigned long flags;
- save_flags (flags);
- cli ();
+ spin_lock_irqsave(&lock,flags);
/* XXX fix me */
@@ -875,6 +874,6 @@
}
}
- restore_flags (flags);
+ spin_unlock_irqrestore(&lock,flags);
}
#endif