static irqreturn_t
snd_nm256_interrupt(int irq, void *dev_id, struct pt_regs *dummy)
{
nm256_t *chip = dev_id;
u16 status;
u8 cbyte;
status = snd_nm256_readw(chip, NM_INT_REG);
/* Not ours. */
if (status == 0) {
snd_nm256_intr_check(chip);
return IRQ_NONE;
}
chip->badintrcount = 0;
/* Rather boring; check for individual interrupts and process them. */
spin_lock(&chip->reg_lock);
if (status & NM_PLAYBACK_INT) {
status &= ~NM_PLAYBACK_INT;
NM_ACK_INT(chip, NM_PLAYBACK_INT);
snd_nm256_playback_update(chip);
}
if (status & NM_RECORD_INT) {
status &= ~NM_RECORD_INT;
NM_ACK_INT(chip, NM_RECORD_INT);
snd_nm256_capture_update(chip);
}
if (status & NM_MISC_INT_1) {
status &= ~NM_MISC_INT_1;
NM_ACK_INT(chip, NM_MISC_INT_1);
snd_printd("NM256: Got misc interrupt #1\n");
snd_nm256_writew(chip, NM_INT_REG, 0x8000);
cbyte = snd_nm256_readb(chip, 0x400);
snd_nm256_writeb(chip, 0x400, cbyte | 2);
}
if (status & NM_MISC_INT_2) {
status &= ~NM_MISC_INT_2;
NM_ACK_INT(chip, NM_MISC_INT_2);
snd_printd("NM256: Got misc interrupt #2\n");
cbyte = snd_nm256_readb(chip, 0x400);
snd_nm256_writeb(chip, 0x400, cbyte & ~2);
}
/* Unknown interrupt. */
if (status) {
snd_printd("NM256: Fire in the hole! Unknown status 0x%x\n",
status);
/* Pray. */
NM_ACK_INT(chip, status);
}
spin_unlock(&chip->reg_lock);
return IRQ_HANDLED;
}
static irqreturn_t
snd_nm256_interrupt(int irq, void *dev_id)
{
struct nm256 *chip = dev_id;
u16 status;
u8 cbyte;
status = snd_nm256_readw(chip, NM_INT_REG);
if (status == 0)
return snd_nm256_intr_check(chip);
chip->badintrcount = 0;
spin_lock(&chip->reg_lock);
if (status & NM_PLAYBACK_INT) {
status &= ~NM_PLAYBACK_INT;
NM_ACK_INT(chip, NM_PLAYBACK_INT);
snd_nm256_playback_update(chip);
}
if (status & NM_RECORD_INT) {
status &= ~NM_RECORD_INT;
NM_ACK_INT(chip, NM_RECORD_INT);
snd_nm256_capture_update(chip);
}
if (status & NM_MISC_INT_1) {
status &= ~NM_MISC_INT_1;
NM_ACK_INT(chip, NM_MISC_INT_1);
snd_printd("NM256: Got misc interrupt #1\n");
snd_nm256_writew(chip, NM_INT_REG, 0x8000);
cbyte = snd_nm256_readb(chip, 0x400);
snd_nm256_writeb(chip, 0x400, cbyte | 2);
}
if (status & NM_MISC_INT_2) {
status &= ~NM_MISC_INT_2;
NM_ACK_INT(chip, NM_MISC_INT_2);
snd_printd("NM256: Got misc interrupt #2\n");
cbyte = snd_nm256_readb(chip, 0x400);
snd_nm256_writeb(chip, 0x400, cbyte & ~2);
}
if (status) {
snd_printd("NM256: Fire in the hole! Unknown status 0x%x\n",
status);
NM_ACK_INT(chip, status);
}
spin_unlock(&chip->reg_lock);
return IRQ_HANDLED;
}