static irqreturn_t
snd_nm256_interrupt_zx(int irq, void *dev_id, struct pt_regs *dummy)
{
nm256_t *chip = dev_id;
u32 status;
u8 cbyte;
status = snd_nm256_readl(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 & NM2_PLAYBACK_INT) {
status &= ~NM2_PLAYBACK_INT;
NM2_ACK_INT(chip, NM2_PLAYBACK_INT);
snd_nm256_playback_update(chip);
}
if (status & NM2_RECORD_INT) {
status &= ~NM2_RECORD_INT;
NM2_ACK_INT(chip, NM2_RECORD_INT);
snd_nm256_capture_update(chip);
}
if (status & NM2_MISC_INT_1) {
status &= ~NM2_MISC_INT_1;
NM2_ACK_INT(chip, NM2_MISC_INT_1);
snd_printd("NM256: Got misc interrupt #1\n");
cbyte = snd_nm256_readb(chip, 0x400);
snd_nm256_writeb(chip, 0x400, cbyte | 2);
}
if (status & NM2_MISC_INT_2) {
status &= ~NM2_MISC_INT_2;
NM2_ACK_INT(chip, NM2_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. */
NM2_ACK_INT(chip, status);
}
spin_unlock(&chip->reg_lock);
return IRQ_HANDLED;
}
static irqreturn_t
snd_nm256_interrupt_zx(int irq, void *dev_id)
{
struct nm256 *chip = dev_id;
u32 status;
u8 cbyte;
status = snd_nm256_readl(chip, NM_INT_REG);
if (status == 0)
return snd_nm256_intr_check(chip);
chip->badintrcount = 0;
spin_lock(&chip->reg_lock);
if (status & NM2_PLAYBACK_INT) {
status &= ~NM2_PLAYBACK_INT;
NM2_ACK_INT(chip, NM2_PLAYBACK_INT);
snd_nm256_playback_update(chip);
}
if (status & NM2_RECORD_INT) {
status &= ~NM2_RECORD_INT;
NM2_ACK_INT(chip, NM2_RECORD_INT);
snd_nm256_capture_update(chip);
}
if (status & NM2_MISC_INT_1) {
status &= ~NM2_MISC_INT_1;
NM2_ACK_INT(chip, NM2_MISC_INT_1);
snd_printd("NM256: Got misc interrupt #1\n");
cbyte = snd_nm256_readb(chip, 0x400);
snd_nm256_writeb(chip, 0x400, cbyte | 2);
}
if (status & NM2_MISC_INT_2) {
status &= ~NM2_MISC_INT_2;
NM2_ACK_INT(chip, NM2_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);
NM2_ACK_INT(chip, status);
}
spin_unlock(&chip->reg_lock);
return IRQ_HANDLED;
}
static snd_pcm_uframes_t
snd_nm256_capture_pointer(snd_pcm_substream_t * substream)
{
nm256_t *chip = snd_pcm_substream_chip(substream);
nm256_stream_t *s = (nm256_stream_t*)substream->runtime->private_data;
unsigned long curp;
snd_assert(s != NULL, return 0);
curp = snd_nm256_readl(chip, NM_RBUFFER_CURRP) - (unsigned long)s->buf;
curp %= s->dma_size;
return bytes_to_frames(substream->runtime, curp);
}
/*
* get the current pointer
*/
static snd_pcm_uframes_t
snd_nm256_playback_pointer(struct snd_pcm_substream *substream)
{
struct nm256 *chip = snd_pcm_substream_chip(substream);
struct nm256_stream *s = substream->runtime->private_data;
unsigned long curp;
snd_assert(s, return 0);
curp = snd_nm256_readl(chip, NM_PBUFFER_CURRP) - (unsigned long)s->buf;
curp %= s->dma_size;
return bytes_to_frames(substream->runtime, curp);
}
static snd_pcm_uframes_t
snd_nm256_capture_pointer(struct snd_pcm_substream *substream)
{
struct nm256 *chip = snd_pcm_substream_chip(substream);
struct nm256_stream *s = substream->runtime->private_data;
unsigned long curp;
if (snd_BUG_ON(!s))
return 0;
curp = snd_nm256_readl(chip, NM_RBUFFER_CURRP) - (unsigned long)s->buf;
curp %= s->dma_size;
return bytes_to_frames(substream->runtime, curp);
}