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ASoC: Intel: Skylake: Generate topology name for NHLT table header 

NHLT table [1] header has fields like oem_id, oem_table_id and
oem_revision. Use that to load a unique topology binary specific
to that platform

NHLT Table is documented at:
[1]: https://01.org/blogs/2016/intel-smart-sound-technology-audio-dsp

Signed-off-by: Yang A Fang <yang.a.fang@intel.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Vinod Koul 2016-02-19 11:42:34 +05:30 committed by Mark Brown
parent 2d1419a329
commit 4b235c43de
4 changed files with 49 additions and 3 deletions
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34
sound/soc/intel/skylake/skl-nhlt.c
View File

@ -145,3 +145,37 @@ struct nhlt_specific_cfg
return NULL;
}
static void skl_nhlt_trim_space(struct skl *skl)
{
char *s = skl->tplg_name;
int cnt;
int i;
cnt = 0;
for (i = 0; s[i]; i++) {
if (!isspace(s[i]))
s[cnt++] = s[i];
}
s[cnt] = '\0';
}
int skl_nhlt_update_topology_bin(struct skl *skl)
{
struct nhlt_acpi_table *nhlt = (struct nhlt_acpi_table *)skl->nhlt;
struct hdac_bus *bus = ebus_to_hbus(&skl->ebus);
struct device *dev = bus->dev;
dev_dbg(dev, "oem_id %.6s, oem_table_id %8s oem_revision %d\n",
nhlt->header.oem_id, nhlt->header.oem_table_id,
nhlt->header.oem_revision);
snprintf(skl->tplg_name, sizeof(skl->tplg_name), "%x-%.6s-%.8s-%d%s",
skl->pci_id, nhlt->header.oem_id, nhlt->header.oem_table_id,
nhlt->header.oem_revision, "-tplg.bin");
skl_nhlt_trim_space(skl);
return 0;
}

11
sound/soc/intel/skylake/skl-topology.c
View File

@ -1716,11 +1716,16 @@ int skl_tplg_init(struct snd_soc_platform *platform, struct hdac_ext_bus *ebus)
struct hdac_bus *bus = ebus_to_hbus(ebus);
struct skl *skl = ebus_to_skl(ebus);
ret = request_firmware(&fw, "dfw_sst.bin", bus->dev);
ret = request_firmware(&fw, skl->tplg_name, bus->dev);
if (ret < 0) {
dev_err(bus->dev, "tplg fw %s load failed with %d\n",
"dfw_sst.bin", ret);
return ret;
skl->tplg_name, ret);
ret = request_firmware(&fw, "dfw_sst.bin", bus->dev);
if (ret < 0) {
dev_err(bus->dev, "Fallback tplg fw %s load failed with %d\n",
"dfw_sst.bin", ret);
return ret;
}
}
/*

4
sound/soc/intel/skylake/skl.c
View File

@ -573,11 +573,15 @@ static int skl_probe(struct pci_dev *pci,
if (err < 0)
goto out_free;
skl->pci_id = pci->device;
skl->nhlt = skl_nhlt_init(bus->dev);
if (skl->nhlt == NULL)
goto out_free;
skl_nhlt_update_topology_bin(skl);
pci_set_drvdata(skl->pci, ebus);
/* check if dsp is there */

3
sound/soc/intel/skylake/skl.h
View File

@ -73,6 +73,8 @@ struct skl {
struct list_head ppl_list;
const char *fw_name;
char tplg_name[64];
unsigned short pci_id;
const struct firmware *tplg;
int supend_active;
@ -96,6 +98,7 @@ void skl_nhlt_free(void *addr);
struct nhlt_specific_cfg *skl_get_ep_blob(struct skl *skl, u32 instance,
u8 link_type, u8 s_fmt, u8 no_ch, u32 s_rate, u8 dirn);
int skl_nhlt_update_topology_bin(struct skl *skl);
int skl_init_dsp(struct skl *skl);
void skl_free_dsp(struct skl *skl);
int skl_suspend_dsp(struct skl *skl);