/*
* uni_reader_irq_handler
* In case of error audio stream is stopped; stop action is protected via PCM
* stream lock to avoid race condition with trigger callback.
*/
static irqreturn_t uni_reader_irq_handler(int irq, void *dev_id)
{
irqreturn_t ret = IRQ_NONE;
struct uniperif *reader = dev_id;
unsigned int status;
if (reader->state == UNIPERIF_STATE_STOPPED) {
/* Unexpected IRQ: do nothing */
dev_warn(reader->dev, "unexpected IRQ ");
return IRQ_HANDLED;
}
/* Get interrupt status & clear them immediately */
status = GET_UNIPERIF_ITS(reader);
SET_UNIPERIF_ITS_BCLR(reader, status);
/* Check for fifo overflow error */
if (unlikely(status & UNIPERIF_ITS_FIFO_ERROR_MASK(reader))) {
dev_err(reader->dev, "FIFO error detected");
snd_pcm_stream_lock(reader->substream);
snd_pcm_stop(reader->substream, SNDRV_PCM_STATE_XRUN);
snd_pcm_stream_unlock(reader->substream);
return IRQ_HANDLED;
}
return ret;
}
/*
* XRUN detected, and stop the PCM substream
*/
static void snd_atiixp_xrun_dma(atiixp_t *chip, atiixp_dma_t *dma)
{
if (! dma->substream || ! dma->running)
return;
snd_printdd("atiixp: XRUN detected (DMA %d)\n", dma->ops->type);
snd_pcm_stop(dma->substream, SNDRV_PCM_STATE_XRUN);
}
/**
* atmel_pcm_dma_irq: SSC interrupt handler for DMAENGINE enabled SSC
*
* We use DMAENGINE to send/receive data to/from SSC so this ISR is only to
* check if any overrun occured.
*/
static void atmel_pcm_dma_irq(u32 ssc_sr,
struct snd_pcm_substream *substream)
{
struct atmel_pcm_dma_params *prtd;
prtd = snd_dmaengine_pcm_get_data(substream);
if (ssc_sr & prtd->mask->ssc_error) {
if (snd_pcm_running(substream))
pr_warn("atmel-pcm: buffer %s on %s (SSC_SR=%#x)\n",
substream->stream == SNDRV_PCM_STREAM_PLAYBACK
? "underrun" : "overrun", prtd->name,
ssc_sr);
/* stop RX and capture: will be enabled again at restart */
ssc_writex(prtd->ssc->regs, SSC_CR, prtd->mask->ssc_disable);
snd_pcm_stream_lock(substream);
snd_pcm_stop(substream, SNDRV_PCM_STATE_XRUN);
snd_pcm_stream_unlock(substream);
/* now drain RHR and read status to remove xrun condition */
ssc_readx(prtd->ssc->regs, SSC_RHR);
ssc_readx(prtd->ssc->regs, SSC_SR);
}
}
/*
Stop substream if still running.
*/
static void pcm_disconnect_substream(struct snd_pcm_substream *substream)
{
if (substream->runtime && snd_pcm_running(substream)) {
snd_pcm_stream_lock_irq(substream);
snd_pcm_stop(substream, SNDRV_PCM_STATE_DISCONNECTED);
snd_pcm_stream_unlock_irq(substream);
}
}
/*
* XRUN detected, and stop the PCM substream
*/
static void snd_atiixp_xrun_dma(struct atiixp *chip, struct atiixp_dma *dma)
{
if (! dma->substream || ! dma->running)
return;
dev_dbg(chip->card->dev, "XRUN detected (DMA %d)\n", dma->ops->type);
snd_pcm_stream_lock(dma->substream);
snd_pcm_stop(dma->substream, SNDRV_PCM_STATE_XRUN);
snd_pcm_stream_unlock(dma->substream);
}
static void abort_alsa_playback(struct ua101 *ua)
{
unsigned long flags;
if (test_bit(ALSA_PLAYBACK_RUNNING, &ua->states)) {
snd_pcm_stream_lock_irqsave(ua->playback.substream, flags);
snd_pcm_stop(ua->playback.substream, SNDRV_PCM_STATE_XRUN);
snd_pcm_stream_unlock_irqrestore(ua->playback.substream, flags);
}
}
static void bcm947xx_dma_abort(struct snd_pcm_substream *substream)
{
if (snd_pcm_running(substream)) {
unsigned long flags;
DBG("%s XRUN\n", __FUNCTION__);
snd_pcm_stream_lock_irqsave(substream, flags);
snd_pcm_stop(substream, SNDRV_PCM_STATE_XRUN);
snd_pcm_stream_unlock_irqrestore(substream, flags);
}
}
/*
* XRUN detected, and stop the PCM substream
*/
static void snd_atiixp_xrun_dma(struct atiixp_modem *chip,
struct atiixp_dma *dma)
{
if (! dma->substream || ! dma->running)
return;
snd_printdd("atiixp-modem: XRUN detected (DMA %d)\n", dma->ops->type);
snd_pcm_stream_lock(dma->substream);
snd_pcm_stop(dma->substream, SNDRV_PCM_STATE_XRUN);
snd_pcm_stream_unlock(dma->substream);
}
static void abort_alsa_capture(struct ua101 *ua)
{
unsigned long flags;
if (test_bit(ALSA_CAPTURE_RUNNING, &ua->states)) {
snd_pcm_stream_lock_irqsave(ua->capture.substream, flags);
snd_pcm_stop(ua->capture.substream, SNDRV_PCM_STATE_XRUN);
snd_pcm_stream_unlock_irqrestore(ua->capture.substream, flags);
}
}
static void hdmi_audio_abort_stream(struct snd_pcm_substream *substream)
{
unsigned long flags;
snd_pcm_stream_lock_irqsave(substream, flags);
if (snd_pcm_running(substream))
snd_pcm_stop(substream, SNDRV_PCM_STATE_DISCONNECTED);
snd_pcm_stream_unlock_irqrestore(substream, flags);
}
static void pcm_timeout_func(unsigned long data)
{
struct tegra_runtime_data *prtd = (struct tegra_runtime_data*)data;
struct snd_pcm_substream *substream = prtd->substream;
struct snd_pcm_runtime *runtime = substream->runtime;
unsigned long current_tick = jiffies;
if( jiffies_to_msecs(current_tick - prtd->pcm_timeout_tick) >= (runtime->period_size/(runtime->rate/1000))*runtime->periods*2){
dev_err(substream->pcm->dev, "pcm_timeout_func!!! time : %d\n", jiffies_to_msecs(current_tick - prtd->pcm_timeout_tick));
snd_pcm_stop(prtd->substream, SNDRV_PCM_STATE_XRUN);
}
}
static irqreturn_t stm32_sai_isr(int irq, void *devid)
{
struct stm32_sai_sub_data *sai = (struct stm32_sai_sub_data *)devid;
struct snd_pcm_substream *substream = sai->substream;
struct platform_device *pdev = sai->pdev;
unsigned int sr, imr, flags;
snd_pcm_state_t status = SNDRV_PCM_STATE_RUNNING;
regmap_read(sai->regmap, STM_SAI_IMR_REGX, &imr);
regmap_read(sai->regmap, STM_SAI_SR_REGX, &sr);
flags = sr & imr;
if (!flags)
return IRQ_NONE;
regmap_update_bits(sai->regmap, STM_SAI_CLRFR_REGX, SAI_XCLRFR_MASK,
SAI_XCLRFR_MASK);
if (flags & SAI_XIMR_OVRUDRIE) {
dev_err(&pdev->dev, "IT %s\n",
STM_SAI_IS_PLAYBACK(sai) ? "underrun" : "overrun");
status = SNDRV_PCM_STATE_XRUN;
}
if (flags & SAI_XIMR_MUTEDETIE)
dev_dbg(&pdev->dev, "IT mute detected\n");
if (flags & SAI_XIMR_WCKCFGIE) {
dev_err(&pdev->dev, "IT wrong clock configuration\n");
status = SNDRV_PCM_STATE_DISCONNECTED;
}
if (flags & SAI_XIMR_CNRDYIE)
dev_warn(&pdev->dev, "IT Codec not ready\n");
if (flags & SAI_XIMR_AFSDETIE) {
dev_warn(&pdev->dev, "IT Anticipated frame synchro\n");
status = SNDRV_PCM_STATE_XRUN;
}
if (flags & SAI_XIMR_LFSDETIE) {
dev_warn(&pdev->dev, "IT Late frame synchro\n");
status = SNDRV_PCM_STATE_XRUN;
}
if (status != SNDRV_PCM_STATE_RUNNING) {
snd_pcm_stream_lock(substream);
snd_pcm_stop(substream, SNDRV_PCM_STATE_XRUN);
snd_pcm_stream_unlock(substream);
}
return IRQ_HANDLED;
}
static void hdmi_dai_abort(struct device *dev)
{
struct hdmi_audio_data *ad = dev_get_drvdata(dev);
mutex_lock(&ad->current_stream_lock);
if (ad->current_stream && ad->current_stream->runtime &&
snd_pcm_running(ad->current_stream)) {
dev_err(dev, "HDMI display disabled, aborting playback\n");
snd_pcm_stream_lock_irq(ad->current_stream);
snd_pcm_stop(ad->current_stream, SNDRV_PCM_STATE_DISCONNECTED);
snd_pcm_stream_unlock_irq(ad->current_stream);
}
mutex_unlock(&ad->current_stream_lock);
}
static irqreturn_t ipq_mi2s_irq(int intrsrc, void *data)
{
int dma_ch;
uint32_t ret = IRQ_NONE;
uint32_t has_xrun, pending;
struct snd_pcm_substream *substream = data;
struct snd_pcm_runtime *runtime = substream->runtime;
struct ipq_lpass_runtime_data_t *prtd =
(struct ipq_lpass_runtime_data_t *)runtime->private_data;
if (prtd)
dma_ch = prtd->lpaif_info.dma_ch;
else
return IRQ_NONE;
pending = (intrsrc
& (UNDER_CH(dma_ch) | PER_CH(dma_ch) | ERR_CH(dma_ch)));
has_xrun = (pending & UNDER_CH(dma_ch));
if (unlikely(has_xrun) && substream->runtime &&
snd_pcm_running(substream)) {
pr_debug("%s %d: xrun warning\n", __func__, __LINE__);
snd_pcm_stop(substream, SNDRV_PCM_STATE_XRUN);
pending &= ~UNDER_CH(dma_ch);
ret = IRQ_HANDLED;
}
if (pending & PER_CH(dma_ch)) {
if (++prtd->pcm_stream_info.period_index >= runtime->periods)
prtd->pcm_stream_info.period_index = 0;
snd_pcm_period_elapsed(substream);
pending &= ~PER_CH(dma_ch);
ret = IRQ_HANDLED;
}
if (pending & UNDER_CH(dma_ch)) {
snd_pcm_period_elapsed(substream);
pr_debug("%s %d: xrun warning\n", __func__, __LINE__);
ret = IRQ_HANDLED;
}
if (pending & ERR_CH(dma_ch)) {
pr_debug("%s %d: Bus access warning\n", __func__, __LINE__);
ret = IRQ_HANDLED;
}
return ret;
}
static int loopback_check_format(struct loopback_cable *cable, int stream)
{
struct snd_pcm_runtime *runtime, *cruntime;
struct loopback_setup *setup;
struct snd_card *card;
int check;
if (cable->valid != CABLE_VALID_BOTH) {
if (stream == SNDRV_PCM_STREAM_PLAYBACK)
goto __notify;
return 0;
}
runtime = cable->streams[SNDRV_PCM_STREAM_PLAYBACK]->
substream->runtime;
cruntime = cable->streams[SNDRV_PCM_STREAM_CAPTURE]->
substream->runtime;
check = runtime->format != cruntime->format ||
runtime->rate != cruntime->rate ||
runtime->channels != cruntime->channels;
if (!check)
return 0;
if (stream == SNDRV_PCM_STREAM_CAPTURE) {
return -EIO;
} else {
snd_pcm_stop(cable->streams[SNDRV_PCM_STREAM_CAPTURE]->
substream, SNDRV_PCM_STATE_DRAINING);
__notify:
runtime = cable->streams[SNDRV_PCM_STREAM_PLAYBACK]->
substream->runtime;
setup = get_setup(cable->streams[SNDRV_PCM_STREAM_PLAYBACK]);
card = cable->streams[SNDRV_PCM_STREAM_PLAYBACK]->loopback->card;
if (setup->format != runtime->format) {
snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_VALUE,
&setup->format_id);
setup->format = runtime->format;
}
if (setup->rate != runtime->rate) {
snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_VALUE,
&setup->rate_id);
setup->rate = runtime->rate;
}
if (setup->channels != runtime->channels) {
snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_VALUE,
&setup->channels_id);
setup->channels = runtime->channels;
}
}
return 0;
}
int had_process_hot_unplug(struct snd_intelhad *intelhaddata)
{
int caps, retval = 0;
enum intel_had_aud_buf_type buf_id;
struct had_pvt_data *had_stream;
unsigned long flag_irqs;
pr_debug("Enter:%s", __func__);
had_stream = intelhaddata->private_data;
buf_id = intelhaddata->curr_buf;
spin_lock_irqsave(&intelhaddata->had_spinlock, flag_irqs);
if (intelhaddata->drv_status == HAD_DRV_DISCONNECTED) {
pr_debug("Device already disconnected\n");
spin_unlock_irqrestore(&intelhaddata->had_spinlock, flag_irqs);
return retval;
} else {
/* Disable Audio */
caps = HDMI_AUDIO_BUFFER_DONE;
retval = had_set_caps(HAD_SET_DISABLE_AUDIO_INT, &caps);
retval = had_set_caps(HAD_SET_DISABLE_AUDIO, NULL);
intelhaddata->ops->enable_audio(intelhaddata->stream_info.had_substream, 0);
}
intelhaddata->drv_status = HAD_DRV_DISCONNECTED;
/* Report to above ALSA layer */
if (intelhaddata->stream_info.had_substream != NULL) {
spin_unlock_irqrestore(&intelhaddata->had_spinlock, flag_irqs);
pr_debug("%s: unlock -> sending pcm_stop -> lock\n", __func__);
mutex_lock(&had_mutex);
if (intelhaddata->stream_info.had_substream != NULL)
snd_pcm_stop(intelhaddata->stream_info.had_substream,
SNDRV_PCM_STATE_DISCONNECTED);
mutex_unlock(&had_mutex);
spin_lock_irqsave(&intelhaddata->had_spinlock, flag_irqs);
}
had_stream->stream_type = HAD_INIT;
spin_unlock_irqrestore(&intelhaddata->had_spinlock, flag_irqs);
kfree(intelhaddata->chmap->chmap);
intelhaddata->chmap->chmap = NULL;
pr_debug("%s: unlocked -> returned\n", __func__);
return retval;
}
int snd_ak4114_check_rate_and_errors(struct ak4114 *ak4114, unsigned int flags)
{
struct snd_pcm_runtime *runtime = ak4114->capture_substream ? ak4114->capture_substream->runtime : NULL;
unsigned long _flags;
int res = 0;
unsigned char rcs0, rcs1;
unsigned char c0, c1;
rcs1 = reg_read(ak4114, AK4114_REG_RCS1);
if (flags & AK4114_CHECK_NO_STAT)
goto __rate;
rcs0 = reg_read(ak4114, AK4114_REG_RCS0);
spin_lock_irqsave(&ak4114->lock, _flags);
if (rcs0 & AK4114_PAR)
ak4114->parity_errors++;
if (rcs1 & AK4114_V)
ak4114->v_bit_errors++;
if (rcs1 & AK4114_CCRC)
ak4114->ccrc_errors++;
if (rcs1 & AK4114_QCRC)
ak4114->qcrc_errors++;
c0 = (ak4114->rcs0 & (AK4114_QINT | AK4114_CINT | AK4114_PEM | AK4114_AUDION | AK4114_AUTO | AK4114_UNLCK)) ^
(rcs0 & (AK4114_QINT | AK4114_CINT | AK4114_PEM | AK4114_AUDION | AK4114_AUTO | AK4114_UNLCK));
c1 = (ak4114->rcs1 & 0xf0) ^ (rcs1 & 0xf0);
ak4114->rcs0 = rcs0 & ~(AK4114_QINT | AK4114_CINT);
ak4114->rcs1 = rcs1;
spin_unlock_irqrestore(&ak4114->lock, _flags);
ak4114_notify(ak4114, rcs0, rcs1, c0, c1);
if (ak4114->change_callback && (c0 | c1) != 0)
ak4114->change_callback(ak4114, c0, c1);
__rate:
/* compare rate */
res = external_rate(rcs1);
if (!(flags & AK4114_CHECK_NO_RATE) && runtime && runtime->rate != res) {
snd_pcm_stream_lock_irqsave(ak4114->capture_substream, _flags);
if (snd_pcm_running(ak4114->capture_substream)) {
// printk(KERN_DEBUG "rate changed (%i <- %i)\n", runtime->rate, res);
snd_pcm_stop(ak4114->capture_substream, SNDRV_PCM_STATE_DRAINING);
res = 1;
}
snd_pcm_stream_unlock_irqrestore(ak4114->capture_substream, _flags);
}
return res;
}
void pxa2xx_pcm_dma_irq(int dma_ch, void *dev_id)
{
struct snd_pcm_substream *substream = dev_id;
struct pxa2xx_runtime_data *rtd = substream->runtime->private_data;
int dcsr;
dcsr = DCSR(dma_ch);
DCSR(dma_ch) = dcsr & ~DCSR_STOPIRQEN;
if (dcsr & DCSR_ENDINTR) {
snd_pcm_period_elapsed(substream);
} else {
printk(KERN_ERR "%s: DMA error on channel %d (DCSR=%#x)\n",
rtd->params->name, dma_ch, dcsr);
snd_pcm_stop(substream, SNDRV_PCM_STATE_XRUN);
}
}
static irqreturn_t snd_stm_pcm_player_irq_handler(int irq, void *dev_id)
{
irqreturn_t result = IRQ_NONE;
struct snd_stm_pcm_player *pcm_player = dev_id;
unsigned int status;
snd_stm_printd(2, "snd_stm_pcm_player_irq_handler(irq=%d, "
"dev_id=0x%p)\n", irq, dev_id);
BUG_ON(!pcm_player);
BUG_ON(!snd_stm_magic_valid(pcm_player));
/* Get interrupt status & clear them immediately */
preempt_disable();
status = get__AUD_PCMOUT_ITS(pcm_player);
set__AUD_PCMOUT_ITS_CLR(pcm_player, status);
preempt_enable();
/* Underflow? */
if (unlikely(status & mask__AUD_PCMOUT_ITS__UNF__PENDING(pcm_player))) {
snd_stm_printe("Underflow detected in PCM player '%s'!\n",
dev_name(pcm_player->device));
snd_pcm_stop(pcm_player->substream, SNDRV_PCM_STATE_XRUN);
result = IRQ_HANDLED;
} else if (likely(status &
mask__AUD_PCMOUT_ITS__NSAMPLE__PENDING(pcm_player))) {
/* Period successfully played */
do {
BUG_ON(!pcm_player->substream);
snd_stm_printd(2, "Period elapsed ('%s')\n",
dev_name(pcm_player->device));
snd_pcm_period_elapsed(pcm_player->substream);
result = IRQ_HANDLED;
} while (0);
}
/* Some alien interrupt??? */
BUG_ON(result != IRQ_HANDLED);
return result;
}
void pxa2xx_pcm_dma_irq(int dma_ch, void *dev_id)
{
struct snd_pcm_substream *substream = dev_id;
int dcsr;
dcsr = DCSR(dma_ch);
DCSR(dma_ch) = dcsr & ~DCSR_STOPIRQEN;
if (dcsr & DCSR_ENDINTR) {
snd_pcm_period_elapsed(substream);
} else {
printk(KERN_ERR "DMA error on channel %d (DCSR=%#x)\n",
dma_ch, dcsr);
snd_pcm_stream_lock(substream);
snd_pcm_stop(substream, SNDRV_PCM_STATE_XRUN);
snd_pcm_stream_unlock(substream);
}
}
static void ep93xx_pcm_buffer_finished(void *cookie,
struct ep93xx_dma_buffer *buf,
int bytes, int error)
{
struct snd_pcm_substream *substream = cookie;
struct ep93xx_runtime_data *rtd = substream->runtime->private_data;
if (buf == rtd->buf + rtd->periods - 1)
rtd->pointer_bytes = 0;
else
rtd->pointer_bytes += buf->size;
if (!error) {
ep93xx_dma_m2p_submit_recursive(&rtd->cl, buf);
tasklet_schedule(&rtd->period_tasklet);
} else {
snd_pcm_stop(substream, SNDRV_PCM_STATE_XRUN);
}
}
int had_process_hot_plug(struct snd_intelhad *intelhaddata)
{
int retval = 0;
enum intel_had_aud_buf_type buf_id;
struct snd_pcm_substream *substream;
struct had_pvt_data *had_stream;
unsigned long flag_irqs;
pr_debug("Enter:%s", __func__);
substream = intelhaddata->stream_info.had_substream;
had_stream = intelhaddata->private_data;
spin_lock_irqsave(&intelhaddata->had_spinlock, flag_irqs);
if (intelhaddata->drv_status == HAD_DRV_CONNECTED) {
pr_debug("Device already connected\n");
spin_unlock_irqrestore(&intelhaddata->had_spinlock, flag_irqs);
return retval;
}
buf_id = intelhaddata->curr_buf;
intelhaddata->buff_done = buf_id;
intelhaddata->drv_status = HAD_DRV_CONNECTED;
spin_unlock_irqrestore(&intelhaddata->had_spinlock, flag_irqs);
pr_debug("Processing HOT_PLUG, buf_id = %d\n", buf_id);
/* Safety check */
if (substream) {
pr_debug("There should not be active PB from ALSA\n");
pr_debug("Signifies, cable is plugged-in even before\n");
pr_debug("processing snd_pcm_disconnect\n");
/* Set runtime->state to hw_params done */
snd_pcm_stop(substream, SNDRV_PCM_STATE_SETUP);
}
had_build_channel_allocation_map(intelhaddata);
return retval;
}
static void pcm_afe_process_rx_pkt(uint32_t opcode,
uint32_t token, uint32_t *payload,
void *priv)
{
struct pcm_afe_info *prtd = priv;
unsigned long dsp_flags;
struct snd_pcm_substream *substream = NULL;
struct snd_pcm_runtime *runtime = NULL;
uint16_t event;
if (prtd == NULL)
return;
substream = prtd->substream;
runtime = substream->runtime;
pr_debug("%s\n", __func__);
spin_lock_irqsave(&prtd->dsp_lock, dsp_flags);
switch (opcode) {
case AFE_EVENT_RT_PROXY_PORT_STATUS: {
event = (uint16_t)((0xFFFF0000 & payload[0]) >> 0x10);
switch (event) {
case AFE_EVENT_RTPORT_START: {
prtd->dsp_cnt = 0;
prtd->poll_time = ((unsigned long)((
snd_pcm_lib_period_bytes(prtd->substream)
* 1000 * 1000)/(runtime->rate
* runtime->channels * 2)));
pr_debug("prtd->poll_time : %d", prtd->poll_time);
break;
}
case AFE_EVENT_RTPORT_STOP:
pr_debug("%s: event!=0\n", __func__);
prtd->start = 0;
snd_pcm_stop(substream, SNDRV_PCM_STATE_SETUP);
break;
case AFE_EVENT_RTPORT_LOW_WM:
pr_debug("%s: Underrun\n", __func__);
break;
case AFE_EVENT_RTPORT_HI_WM:
pr_debug("%s: Overrun\n", __func__);
break;
default:
break;
}
break;
}
case APR_BASIC_RSP_RESULT: {
switch (payload[0]) {
case AFE_SERVICE_CMD_RTPORT_RD:
pr_debug("Read done\n");
prtd->pcm_irq_pos += snd_pcm_lib_period_bytes
(prtd->substream);
snd_pcm_period_elapsed(prtd->substream);
break;
default:
break;
}
break;
}
default:
break;
}
spin_unlock_irqrestore(&prtd->dsp_lock, dsp_flags);
}
/**
* snd_intelhad_pcm_prepare- internal preparation before starting a stream
*
* @substream: substream for which the function is called
*
* This function is called when a stream is started for internal preparation.
*/
static int snd_intelhad_pcm_prepare(struct snd_pcm_substream *substream)
{
int retval;
u32 disp_samp_freq, n_param;
struct snd_intelhad *intelhaddata;
struct snd_pcm_runtime *runtime;
struct had_pvt_data *had_stream;
pr_debug("pcm_prepare called\n");
intelhaddata = snd_pcm_substream_chip(substream);
runtime = substream->runtime;
had_stream = intelhaddata->private_data;
if (had_get_hwstate(intelhaddata)) {
pr_err("%s: HDMI cable plugged-out\n", __func__);
snd_pcm_stop(substream, SNDRV_PCM_STATE_DISCONNECTED);
retval = -ENODEV;
goto prep_end;
}
pr_debug("period_size=%d\n",
frames_to_bytes(runtime, runtime->period_size));
pr_debug("periods=%d\n", runtime->periods);
pr_debug("buffer_size=%d\n", snd_pcm_lib_buffer_bytes(substream));
pr_debug("rate=%d\n", runtime->rate);
pr_debug("channels=%d\n", runtime->channels);
if (intelhaddata->stream_info.str_id) {
pr_debug("_prepare is called for existing str_id#%d\n",
intelhaddata->stream_info.str_id);
retval = snd_intelhad_pcm_trigger(substream,
SNDRV_PCM_TRIGGER_STOP);
return retval;
}
retval = snd_intelhad_init_stream(substream);
if (retval)
goto prep_end;
/* Get N value in KHz */
retval = had_get_caps(HAD_GET_SAMPLING_FREQ, &disp_samp_freq);
if (retval) {
pr_err("querying display sampling freq failed %#x\n", retval);
goto prep_end;
}
had_get_caps(HAD_GET_ELD, &intelhaddata->eeld);
retval = snd_intelhad_prog_n(substream->runtime->rate, &n_param,
intelhaddata);
if (retval) {
pr_err("programming N value failed %#x\n", retval);
goto prep_end;
}
snd_intelhad_prog_cts(substream->runtime->rate,
disp_samp_freq, n_param, intelhaddata);
snd_intelhad_prog_dip(substream, intelhaddata, 0);
retval = snd_intelhad_init_audio_ctrl(substream, intelhaddata, 0);
/* Prog buffer address */
retval = snd_intelhad_prog_buffer(intelhaddata,
HAD_BUF_TYPE_A, HAD_BUF_TYPE_D);
prep_end:
return retval;
}
static void
vaudio_intr_data (void* cookie, NkXIrq xirq)
{
struct vaudio_stream* s = (struct vaudio_stream*) cookie;
NkDevRing* ring = s->ring;
nku32_f oresp = s->resp;
const nku32_f mask = ring->imask;
const nku32_f nresp = ring->iresp;
bool trigger = 0;
#if VAUDIO_PROC_SYNC
if (vaudio_sync_force_close &&
s->stream->pcm->device == 0 &&
s->stream->pstr->stream == SNDRV_PCM_STREAM_CAPTURE) {
while (vaudio_send_data(s) >= 0);
// memset(s->stream->dma_buffer.area, 0, NK_VAUDIO_MAX_RING_SIZE);
return;
}
#endif
(void) xirq;
if (s->active) {
struct snd_pcm_runtime* runtime = s->stream->runtime;
int periods_avail;
int periods_tosend;
if (s->stream_id == SNDRV_PCM_STREAM_PLAYBACK) {
periods_avail = snd_pcm_playback_avail(runtime) /
runtime->period_size;
} else {
periods_avail = snd_pcm_capture_avail(runtime) /
runtime->period_size;
}
DTRACE ("%d %d %d\n",
s->periods_avail, periods_avail, s->periods_tosend);
periods_tosend = s->periods_avail - periods_avail;
if (periods_tosend > 0) {
s->periods_tosend += periods_tosend;
}
s->periods_avail = periods_avail;
while (s->periods_tosend) {
const int res = vaudio_send_data(s);
if (res < 0) break;
if (res == 1) trigger = 1;
s->periods_tosend--;
}
}
while (oresp != nresp) {
NkRingDesc* desc = s->rbase + (oresp & mask);
if (desc->status == (nku32_f) NK_VAUDIO_STATUS_ERROR) {
snd_pcm_stop(s->stream, SNDRV_PCM_STATE_XRUN);
} else {
if (s->active) {
struct snd_pcm_runtime* runtime = s->stream->runtime;
s->hwptr_done++;
s->hwptr_done %= runtime->periods;
snd_pcm_period_elapsed(s->stream);
s->periods_avail++;
}
}
oresp++;
}
s->resp = oresp;
if (trigger) {
nkops.nk_xirq_trigger(ring->cxirq, s->vaudio->vlink->s_id);
}
}
static void abort_alsa_playback(struct ua101 *ua)
{
if (test_bit(ALSA_PLAYBACK_RUNNING, &ua->states))
snd_pcm_stop(ua->playback.substream, SNDRV_PCM_STATE_XRUN);
}
static void abort_alsa_capture(struct ua101 *ua)
{
if (test_bit(ALSA_CAPTURE_RUNNING, &ua->states))
snd_pcm_stop(ua->capture.substream, SNDRV_PCM_STATE_XRUN);
}
int snd_ak4117_check_rate_and_errors(struct ak4117 *ak4117, unsigned int flags)
{
struct snd_pcm_runtime *runtime = ak4117->substream ? ak4117->substream->runtime : NULL;
unsigned long _flags;
int res = 0;
unsigned char rcs0, rcs1, rcs2;
unsigned char c0, c1;
rcs1 = reg_read(ak4117, AK4117_REG_RCS1);
if (flags & AK4117_CHECK_NO_STAT)
goto __rate;
rcs0 = reg_read(ak4117, AK4117_REG_RCS0);
rcs2 = reg_read(ak4117, AK4117_REG_RCS2);
// printk(KERN_DEBUG "AK IRQ: rcs0 = 0x%x, rcs1 = 0x%x, rcs2 = 0x%x\n", rcs0, rcs1, rcs2);
spin_lock_irqsave(&ak4117->lock, _flags);
if (rcs0 & AK4117_PAR)
ak4117->parity_errors++;
if (rcs0 & AK4117_V)
ak4117->v_bit_errors++;
if (rcs2 & AK4117_CCRC)
ak4117->ccrc_errors++;
if (rcs2 & AK4117_QCRC)
ak4117->qcrc_errors++;
c0 = (ak4117->rcs0 & (AK4117_QINT | AK4117_CINT | AK4117_STC | AK4117_AUDION | AK4117_AUTO | AK4117_UNLCK)) ^
(rcs0 & (AK4117_QINT | AK4117_CINT | AK4117_STC | AK4117_AUDION | AK4117_AUTO | AK4117_UNLCK));
c1 = (ak4117->rcs1 & (AK4117_DTSCD | AK4117_NPCM | AK4117_PEM | 0x0f)) ^
(rcs1 & (AK4117_DTSCD | AK4117_NPCM | AK4117_PEM | 0x0f));
ak4117->rcs0 = rcs0 & ~(AK4117_QINT | AK4117_CINT | AK4117_STC);
ak4117->rcs1 = rcs1;
ak4117->rcs2 = rcs2;
spin_unlock_irqrestore(&ak4117->lock, _flags);
if (rcs0 & AK4117_PAR)
snd_ctl_notify(ak4117->card, SNDRV_CTL_EVENT_MASK_VALUE, &ak4117->kctls[0]->id);
if (rcs0 & AK4117_V)
snd_ctl_notify(ak4117->card, SNDRV_CTL_EVENT_MASK_VALUE, &ak4117->kctls[1]->id);
if (rcs2 & AK4117_CCRC)
snd_ctl_notify(ak4117->card, SNDRV_CTL_EVENT_MASK_VALUE, &ak4117->kctls[2]->id);
if (rcs2 & AK4117_QCRC)
snd_ctl_notify(ak4117->card, SNDRV_CTL_EVENT_MASK_VALUE, &ak4117->kctls[3]->id);
/* rate change */
if (c1 & 0x0f)
snd_ctl_notify(ak4117->card, SNDRV_CTL_EVENT_MASK_VALUE, &ak4117->kctls[4]->id);
if ((c1 & AK4117_PEM) | (c0 & AK4117_CINT))
snd_ctl_notify(ak4117->card, SNDRV_CTL_EVENT_MASK_VALUE, &ak4117->kctls[6]->id);
if (c0 & AK4117_QINT)
snd_ctl_notify(ak4117->card, SNDRV_CTL_EVENT_MASK_VALUE, &ak4117->kctls[8]->id);
if (c0 & AK4117_AUDION)
snd_ctl_notify(ak4117->card, SNDRV_CTL_EVENT_MASK_VALUE, &ak4117->kctls[9]->id);
if (c1 & AK4117_NPCM)
snd_ctl_notify(ak4117->card, SNDRV_CTL_EVENT_MASK_VALUE, &ak4117->kctls[10]->id);
if (c1 & AK4117_DTSCD)
snd_ctl_notify(ak4117->card, SNDRV_CTL_EVENT_MASK_VALUE, &ak4117->kctls[11]->id);
if (ak4117->change_callback && (c0 | c1) != 0)
ak4117->change_callback(ak4117, c0, c1);
__rate:
/* compare rate */
res = external_rate(rcs1);
if (!(flags & AK4117_CHECK_NO_RATE) && runtime && runtime->rate != res) {
snd_pcm_stream_lock_irqsave(ak4117->substream, _flags);
if (snd_pcm_running(ak4117->substream)) {
// printk(KERN_DEBUG "rate changed (%i <- %i)\n", runtime->rate, res);
snd_pcm_stop(ak4117->substream, SNDRV_PCM_STATE_DRAINING);
wake_up(&runtime->sleep);
res = 1;
}
snd_pcm_stream_unlock_irqrestore(ak4117->substream, _flags);
}
return res;
}
static void pcm_afe_process_rx_pkt(uint32_t opcode,
uint32_t token, uint32_t *payload,
void *priv)
{
struct pcm_afe_info *prtd = priv;
unsigned long dsp_flags;
struct snd_pcm_substream *substream = NULL;
struct snd_pcm_runtime *runtime = NULL;
uint16_t event;
uint64_t period_bytes;
uint64_t bytes_one_sec;
if (prtd == NULL)
return;
substream = prtd->substream;
runtime = substream->runtime;
pr_debug("%s\n", __func__);
spin_lock_irqsave(&prtd->dsp_lock, dsp_flags);
switch (opcode) {
case AFE_EVENT_RT_PROXY_PORT_STATUS: {
event = (uint16_t)((0xFFFF0000 & payload[0]) >> 0x10);
switch (event) {
case AFE_EVENT_RTPORT_START: {
prtd->dsp_cnt = 0;
/* Calculate poll time. Split steps to avoid overflow.
* Poll time-time corresponding to one period in bytes.
* (Samplerate * channelcount * format)=bytes in 1 sec.
* Poll time = (period bytes / bytes in one sec) *
* 1000000 micro seconds.
* Multiplication by 1000000 is done in two steps to
* keep the accuracy of poll time.
*/
period_bytes = ((uint64_t)(
(snd_pcm_lib_period_bytes(prtd->substream)) *
1000));
bytes_one_sec = (runtime->rate * runtime->channels * 2);
bytes_one_sec = div_u64(bytes_one_sec , 1000);
prtd->poll_time =
div_u64(period_bytes, bytes_one_sec);
pr_debug("prtd->poll_time : %d\n", prtd->poll_time);
break;
}
case AFE_EVENT_RTPORT_STOP:
pr_debug("%s: event!=0\n", __func__);
prtd->start = 0;
snd_pcm_stop(substream, SNDRV_PCM_STATE_SETUP);
break;
case AFE_EVENT_RTPORT_LOW_WM:
pr_debug("%s: Underrun\n", __func__);
break;
case AFE_EVENT_RTPORT_HI_WM:
pr_debug("%s: Overrun\n", __func__);
break;
default:
break;
}
break;
}
case APR_BASIC_RSP_RESULT: {
switch (payload[0]) {
case AFE_PORT_DATA_CMD_RT_PROXY_PORT_READ_V2:
pr_debug("Read done\n");
prtd->pcm_irq_pos += snd_pcm_lib_period_bytes
(prtd->substream);
snd_pcm_period_elapsed(prtd->substream);
break;
default:
break;
}
break;
}
default:
break;
}
spin_unlock_irqrestore(&prtd->dsp_lock, dsp_flags);
}
/*
* uni_player_irq_handler
* In case of error audio stream is stopped; stop action is protected via PCM
* stream lock to avoid race condition with trigger callback.
*/
static irqreturn_t uni_player_irq_handler(int irq, void *dev_id)
{
irqreturn_t ret = IRQ_NONE;
struct uniperif *player = dev_id;
unsigned int status;
unsigned int tmp;
if (player->state == UNIPERIF_STATE_STOPPED) {
/* Unexpected IRQ: do nothing */
return IRQ_NONE;
}
/* Get interrupt status & clear them immediately */
status = GET_UNIPERIF_ITS(player);
SET_UNIPERIF_ITS_BCLR(player, status);
/* Check for fifo error (underrun) */
if (unlikely(status & UNIPERIF_ITS_FIFO_ERROR_MASK(player))) {
dev_err(player->dev, "FIFO underflow error detected\n");
/* Interrupt is just for information when underflow recovery */
if (player->underflow_enabled) {
/* Update state to underflow */
player->state = UNIPERIF_STATE_UNDERFLOW;
} else {
/* Disable interrupt so doesn't continually fire */
SET_UNIPERIF_ITM_BCLR_FIFO_ERROR(player);
/* Stop the player */
snd_pcm_stream_lock(player->substream);
snd_pcm_stop(player->substream, SNDRV_PCM_STATE_XRUN);
snd_pcm_stream_unlock(player->substream);
}
ret = IRQ_HANDLED;
}
/* Check for dma error (overrun) */
if (unlikely(status & UNIPERIF_ITS_DMA_ERROR_MASK(player))) {
dev_err(player->dev, "DMA error detected\n");
/* Disable interrupt so doesn't continually fire */
SET_UNIPERIF_ITM_BCLR_DMA_ERROR(player);
/* Stop the player */
snd_pcm_stream_lock(player->substream);
snd_pcm_stop(player->substream, SNDRV_PCM_STATE_XRUN);
snd_pcm_stream_unlock(player->substream);
ret = IRQ_HANDLED;
}
/* Check for underflow recovery done */
if (unlikely(status & UNIPERIF_ITM_UNDERFLOW_REC_DONE_MASK(player))) {
if (!player->underflow_enabled) {
dev_err(player->dev,
"unexpected Underflow recovering\n");
return -EPERM;
}
/* Read the underflow recovery duration */
tmp = GET_UNIPERIF_STATUS_1_UNDERFLOW_DURATION(player);
dev_dbg(player->dev, "Underflow recovered (%d LR clocks max)\n",
tmp);
/* Clear the underflow recovery duration */
SET_UNIPERIF_BIT_CONTROL_CLR_UNDERFLOW_DURATION(player);
/* Update state to started */
player->state = UNIPERIF_STATE_STARTED;
ret = IRQ_HANDLED;
}
/* Check if underflow recovery failed */
if (unlikely(status &
UNIPERIF_ITM_UNDERFLOW_REC_FAILED_MASK(player))) {
dev_err(player->dev, "Underflow recovery failed\n");
/* Stop the player */
snd_pcm_stream_lock(player->substream);
snd_pcm_stop(player->substream, SNDRV_PCM_STATE_XRUN);
snd_pcm_stream_unlock(player->substream);
ret = IRQ_HANDLED;
}
return ret;
}
