static void skl_pcm_close(struct snd_pcm_substream *substream,
struct snd_soc_dai *dai)
{
struct hdac_ext_stream *stream = get_hdac_ext_stream(substream);
struct hdac_ext_bus *ebus = dev_get_drvdata(dai->dev);
struct skl_dma_params *dma_params = NULL;
struct skl *skl = ebus_to_skl(ebus);
dev_dbg(dai->dev, "%s: %s\n", __func__, dai->name);
snd_hdac_ext_stream_release(stream, skl_get_host_stream_type(ebus));
dma_params = snd_soc_dai_get_dma_data(dai, substream);
/*
* now we should set this to NULL as we are freeing by the
* dma_params
*/
snd_soc_dai_set_dma_data(dai, substream, NULL);
skl_set_suspend_active(substream, dai, false);
/*
* check if close is for "Reference Pin" and set back the
* CGCTL.MISCBDCGE if disabled by driver
*/
if (!strncmp(dai->name, "Reference Pin", 13) &&
skl->skl_sst->miscbdcg_disabled) {
skl->skl_sst->enable_miscbdcge(dai->dev, true);
skl->skl_sst->miscbdcg_disabled = false;
}
kfree(dma_params);
}
static int skl_pcm_new(struct snd_soc_pcm_runtime *rtd)
{
struct snd_soc_dai *dai = rtd->cpu_dai;
struct hdac_ext_bus *ebus = dev_get_drvdata(dai->dev);
struct snd_pcm *pcm = rtd->pcm;
unsigned int size;
int retval = 0;
struct skl *skl = ebus_to_skl(ebus);
if (dai->driver->playback.channels_min ||
dai->driver->capture.channels_min) {
/* buffer pre-allocation */
size = CONFIG_SND_HDA_PREALLOC_SIZE * 1024;
if (size > MAX_PREALLOC_SIZE)
size = MAX_PREALLOC_SIZE;
retval = snd_pcm_lib_preallocate_pages_for_all(pcm,
SNDRV_DMA_TYPE_DEV_SG,
snd_dma_pci_data(skl->pci),
size, MAX_PREALLOC_SIZE);
if (retval) {
dev_err(dai->dev, "dma buffer allocationf fail\n");
return retval;
}
}
return retval;
}
static ssize_t skl_nhlt_platform_id_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct pci_dev *pci = to_pci_dev(dev);
struct hdac_ext_bus *ebus = pci_get_drvdata(pci);
struct skl *skl = ebus_to_skl(ebus);
struct nhlt_acpi_table *nhlt = (struct nhlt_acpi_table *)skl->nhlt;
char platform_id[32];
sprintf(platform_id, "%x-%.6s-%.8s-%d", skl->pci_id,
nhlt->header.oem_id, nhlt->header.oem_table_id,
nhlt->header.oem_revision);
skl_nhlt_trim_space(platform_id);
return sprintf(buf, "%s\n", platform_id);
}
/*
* check if the stream opened is marked as ignore_suspend by machine, if so
* then enable suspend_active refcount
*
* The count supend_active does not need lock as it is used in open/close
* and suspend context
*/
static void skl_set_suspend_active(struct snd_pcm_substream *substream,
struct snd_soc_dai *dai, bool enable)
{
struct hdac_ext_bus *ebus = dev_get_drvdata(dai->dev);
struct snd_soc_dapm_widget *w;
struct skl *skl = ebus_to_skl(ebus);
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
w = dai->playback_widget;
else
w = dai->capture_widget;
if (w->ignore_suspend && enable)
skl->supend_active++;
else if (w->ignore_suspend && !enable)
skl->supend_active--;
}
static int skl_platform_soc_probe(struct snd_soc_platform *platform)
{
struct hdac_ext_bus *ebus = dev_get_drvdata(platform->dev);
struct skl *skl = ebus_to_skl(ebus);
int ret;
if (ebus->ppcap) {
ret = skl_tplg_init(platform, ebus);
if (ret < 0) {
dev_err(platform->dev, "Failed to init topology!\n");
return ret;
}
skl->platform = platform;
}
return 0;
}
int skl_platform_register(struct device *dev)
{
int ret;
struct hdac_ext_bus *ebus = dev_get_drvdata(dev);
struct skl *skl = ebus_to_skl(ebus);
INIT_LIST_HEAD(&skl->ppl_list);
ret = snd_soc_register_platform(dev, &skl_platform_drv);
if (ret) {
dev_err(dev, "soc platform registration failed %d\n", ret);
return ret;
}
ret = snd_soc_register_component(dev, &skl_component,
skl_platform_dai,
ARRAY_SIZE(skl_platform_dai));
if (ret) {
dev_err(dev, "soc component registration failed %d\n", ret);
snd_soc_unregister_platform(dev);
}
return ret;
}
