diff options
Diffstat (limited to 'sound/pci/ice1712/ice1724.c')
| -rw-r--r-- | sound/pci/ice1712/ice1724.c | 23 |
1 files changed, 12 insertions, 11 deletions
diff --git a/sound/pci/ice1712/ice1724.c b/sound/pci/ice1712/ice1724.c index 1b3f1170271..0dfa0540ce2 100644 --- a/sound/pci/ice1712/ice1724.c +++ b/sound/pci/ice1712/ice1724.c @@ -382,23 +382,25 @@ static irqreturn_t snd_vt1724_interrupt(int irq, void *dev_id) unsigned char status_mask = VT1724_IRQ_MPU_RX | VT1724_IRQ_MPU_TX | VT1724_IRQ_MTPCM; int handled = 0; -#ifdef CONFIG_SND_DEBUG int timeout = 0; -#endif while (1) { status = inb(ICEREG1724(ice, IRQSTAT)); status &= status_mask; if (status == 0) break; -#ifdef CONFIG_SND_DEBUG if (++timeout > 10) { - printk(KERN_ERR - "ice1724: Too long irq loop, status = 0x%x\n", - status); + status = inb(ICEREG1724(ice, IRQSTAT)); + printk(KERN_ERR "ice1724: Too long irq loop, " + "status = 0x%x\n", status); + if (status & VT1724_IRQ_MPU_TX) { + printk(KERN_ERR "ice1724: Disabling MPU_TX\n"); + outb(inb(ICEREG1724(ice, IRQMASK)) | + VT1724_IRQ_MPU_TX, + ICEREG1724(ice, IRQMASK)); + } break; } -#endif handled = 1; if (status & VT1724_IRQ_MPU_TX) { spin_lock(&ice->reg_lock); @@ -2351,7 +2353,6 @@ static int __devinit snd_vt1724_create(struct snd_card *card, { struct snd_ice1712 *ice; int err; - unsigned char mask; static struct snd_device_ops ops = { .dev_free = snd_vt1724_dev_free, }; @@ -2412,9 +2413,9 @@ static int __devinit snd_vt1724_create(struct snd_card *card, return -EIO; } - /* unmask used interrupts */ - mask = VT1724_IRQ_MPU_RX | VT1724_IRQ_MPU_TX; - outb(mask, ICEREG1724(ice, IRQMASK)); + /* MPU_RX and TX irq masks are cleared later dynamically */ + outb(VT1724_IRQ_MPU_RX | VT1724_IRQ_MPU_TX , ICEREG1724(ice, IRQMASK)); + /* don't handle FIFO overrun/underruns (just yet), * since they cause machine lockups */ |