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authorTakashi Iwai <tiwai@suse.de>2005-11-17 10:43:53 +0100
committerJaroslav Kysela <perex@suse.cz>2006-01-03 12:17:04 +0100
commit89173bd41439bc6304e3e20f742e52266208ccad (patch)
treeb17197935f7039dce756ca27730fa329095a27f8 /sound/pci/emu10k1/emu10k1x.c
parentb9b4bdd9f1c98388f13591608d574650a9873717 (diff)
[ALSA] emu10k1x - Minor clean up
Modules: EMU10K1/EMU10K2 driver Minor clean up of the emu10k1x interrupt handler code. Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/pci/emu10k1/emu10k1x.c')
-rw-r--r--sound/pci/emu10k1/emu10k1x.c65
1 files changed, 32 insertions, 33 deletions
diff --git a/sound/pci/emu10k1/emu10k1x.c b/sound/pci/emu10k1/emu10k1x.c
index ca402e99469..6c61ac60afd 100644
--- a/sound/pci/emu10k1/emu10k1x.c
+++ b/sound/pci/emu10k1/emu10k1x.c
@@ -795,44 +795,43 @@ static irqreturn_t snd_emu10k1x_interrupt(int irq, void *dev_id,
status = inl(chip->port + IPR);
- if(status) {
- // capture interrupt
- if(status & (IPR_CAP_0_LOOP | IPR_CAP_0_HALF_LOOP)) {
- emu10k1x_voice_t *pvoice = &chip->capture_voice;
- if(pvoice->use)
- snd_emu10k1x_pcm_interrupt(chip, pvoice);
- else
- snd_emu10k1x_intr_disable(chip,
- INTE_CAP_0_LOOP |
- INTE_CAP_0_HALF_LOOP);
- }
-
- mask = IPR_CH_0_LOOP|IPR_CH_0_HALF_LOOP;
- for(i = 0; i < 3; i++) {
- if(status & mask) {
- if(pvoice->use)
- snd_emu10k1x_pcm_interrupt(chip, pvoice);
- else
- snd_emu10k1x_intr_disable(chip, mask);
- }
- pvoice++;
- mask <<= 1;
- }
+ if (! status)
+ return IRQ_NONE;
+
+ // capture interrupt
+ if (status & (IPR_CAP_0_LOOP | IPR_CAP_0_HALF_LOOP)) {
+ emu10k1x_voice_t *pvoice = &chip->capture_voice;
+ if(pvoice->use)
+ snd_emu10k1x_pcm_interrupt(chip, pvoice);
+ else
+ snd_emu10k1x_intr_disable(chip,
+ INTE_CAP_0_LOOP |
+ INTE_CAP_0_HALF_LOOP);
+ }
- if (status & (IPR_MIDITRANSBUFEMPTY|IPR_MIDIRECVBUFEMPTY)) {
- if (chip->midi.interrupt)
- chip->midi.interrupt(chip, status);
- else
- snd_emu10k1x_intr_disable(chip, INTE_MIDITXENABLE|INTE_MIDIRXENABLE);
+ mask = IPR_CH_0_LOOP|IPR_CH_0_HALF_LOOP;
+ for (i = 0; i < 3; i++) {
+ if (status & mask) {
+ if (pvoice->use)
+ snd_emu10k1x_pcm_interrupt(chip, pvoice);
+ else
+ snd_emu10k1x_intr_disable(chip, mask);
}
+ pvoice++;
+ mask <<= 1;
+ }
- // acknowledge the interrupt if necessary
- if(status)
- outl(status, chip->port+IPR);
-
-// snd_printk(KERN_INFO "interrupt %08x\n", status);
+ if (status & (IPR_MIDITRANSBUFEMPTY|IPR_MIDIRECVBUFEMPTY)) {
+ if (chip->midi.interrupt)
+ chip->midi.interrupt(chip, status);
+ else
+ snd_emu10k1x_intr_disable(chip, INTE_MIDITXENABLE|INTE_MIDIRXENABLE);
}
+
+ // acknowledge the interrupt if necessary
+ outl(status, chip->port + IPR);
+ // snd_printk(KERN_INFO "interrupt %08x\n", status);
return IRQ_HANDLED;
}