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ASoC: Intel: Skylake: Add api to retrieve dmic array info from nhlt

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Skylake can be configured with either both 2 and 4 channel DMIC
array, or 2 channel DMIC array only, this patch provides an API to
retrieve the DMIC info from nhlt.

Signed-off-by: Yong Zhi <yong.zhi@intel.com>
Acked-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Yong Zhi 2016-05-26 21:30:15 -07:00 committed by Mark Brown
parent 0c7941a63a
commit f65cf7d666
4 changed files with 78 additions and 2 deletions
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40
sound/soc/intel/skylake/skl-nhlt.c
View File

@ -17,6 +17,7 @@
* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
*
*/
#include <linux/pci.h>
#include "skl.h"
/* Unique identification for getting NHLT blobs */
@ -149,6 +150,45 @@ struct nhlt_specific_cfg
return NULL;
}
int skl_get_dmic_geo(struct skl *skl)
{
struct nhlt_acpi_table *nhlt = (struct nhlt_acpi_table *)skl->nhlt;
struct nhlt_endpoint *epnt;
struct nhlt_dmic_array_config *cfg;
struct device *dev = &skl->pci->dev;
unsigned int dmic_geo = 0;
u8 j;
epnt = (struct nhlt_endpoint *)nhlt->desc;
for (j = 0; j < nhlt->endpoint_count; j++) {
if (epnt->linktype == NHLT_LINK_DMIC) {
cfg = (struct nhlt_dmic_array_config *)
(epnt->config.caps);
switch (cfg->array_type) {
case NHLT_MIC_ARRAY_2CH_SMALL:
case NHLT_MIC_ARRAY_2CH_BIG:
dmic_geo |= MIC_ARRAY_2CH;
break;
case NHLT_MIC_ARRAY_4CH_1ST_GEOM:
case NHLT_MIC_ARRAY_4CH_L_SHAPED:
case NHLT_MIC_ARRAY_4CH_2ND_GEOM:
dmic_geo |= MIC_ARRAY_4CH;
break;
default:
dev_warn(dev, "undefined DMIC array_type 0x%0x\n",
cfg->array_type);
}
}
epnt = (struct nhlt_endpoint *)((u8 *)epnt + epnt->length);
}
return dmic_geo;
}
static void skl_nhlt_trim_space(struct skl *skl)
{
char *s = skl->tplg_name;

22
sound/soc/intel/skylake/skl-nhlt.h
View File

@ -103,4 +103,26 @@ struct nhlt_resource_desc {
u64 length;
} __packed;
#define MIC_ARRAY_2CH 2
#define MIC_ARRAY_4CH 4
struct nhlt_tdm_config {
u8 virtual_slot;
u8 config_type;
} __packed;
struct nhlt_dmic_array_config {
struct nhlt_tdm_config tdm_config;
u8 array_type;
} __packed;
enum {
NHLT_MIC_ARRAY_2CH_SMALL = 0xa,
NHLT_MIC_ARRAY_2CH_BIG = 0xb,
NHLT_MIC_ARRAY_4CH_1ST_GEOM = 0xc,
NHLT_MIC_ARRAY_4CH_L_SHAPED = 0xd,
NHLT_MIC_ARRAY_4CH_2ND_GEOM = 0xe,
NHLT_MIC_ARRAY_VENDOR_DEFINED = 0xf,
};
#endif

12
sound/soc/intel/skylake/skl.c
View File

@ -35,6 +35,8 @@
#include "skl-sst-dsp.h"
#include "skl-sst-ipc.h"
static struct skl_machine_pdata skl_dmic_data;
/*
* initialize the PCI registers
*/
@ -397,6 +399,10 @@ static int skl_machine_device_register(struct skl *skl, void *driver_data)
platform_device_put(pdev);
return -EIO;
}
if (mach->pdata)
dev_set_drvdata(&pdev->dev, mach->pdata);
skl->i2s_dev = pdev;
return 0;
@ -666,6 +672,8 @@ static int skl_probe(struct pci_dev *pci,
pci_set_drvdata(skl->pci, ebus);
skl_dmic_data.dmic_num = skl_get_dmic_geo(skl);
/* check if dsp is there */
if (ebus->ppcap) {
err = skl_machine_device_register(skl,
@ -787,9 +795,9 @@ static void skl_remove(struct pci_dev *pci)
static struct sst_acpi_mach sst_skl_devdata[] = {
{ "INT343A", "skl_alc286s_i2s", "intel/dsp_fw_release.bin", NULL, NULL, NULL },
{ "INT343B", "skl_nau88l25_ssm4567_i2s", "intel/dsp_fw_release.bin",
NULL, NULL, NULL },
NULL, NULL, &skl_dmic_data },
{ "MX98357A", "skl_nau88l25_max98357a_i2s", "intel/dsp_fw_release.bin",
NULL, NULL, NULL },
NULL, NULL, &skl_dmic_data },
{}
};

6
sound/soc/intel/skylake/skl.h
View File

@ -90,6 +90,11 @@ struct skl_dma_params {
u8 stream_tag;
};
/* to pass dmic data */
struct skl_machine_pdata {
u32 dmic_num;
};
struct skl_dsp_ops {
int id;
struct skl_dsp_loader_ops (*loader_ops)(void);
@ -108,6 +113,7 @@ void skl_nhlt_free(struct nhlt_acpi_table *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_get_dmic_geo(struct skl *skl);
int skl_nhlt_update_topology_bin(struct skl *skl);
int skl_init_dsp(struct skl *skl);
int skl_free_dsp(struct skl *skl);