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@xxxxxxxxx>
---
sound/soc/intel/skylake/skl-nhlt.c | 37 +++++++++++++++++++++++++++++++++++++
sound/soc/intel/skylake/skl-nhlt.h | 22 ++++++++++++++++++++++
sound/soc/intel/skylake/skl.c | 12 ++++++++++--
sound/soc/intel/skylake/skl.h | 6 ++++++
4 files changed, 75 insertions(+), 2 deletions(-)
diff --git a/sound/soc/intel/skylake/skl-nhlt.c b/sound/soc/intel/skylake/skl-nhlt.c
index 7d73648..be4c4a3 100644
--- a/sound/soc/intel/skylake/skl-nhlt.c
+++ b/sound/soc/intel/skylake/skl-nhlt.c
@@ -18,6 +18,7 @@
*
*/
#include "skl.h"
+#include <linux/pci.h>
/* Unique identification for getting NHLT blobs */
static u8 OSC_UUID[16] = {0x6E, 0x88, 0x9F, 0xA6, 0xEB, 0x6C, 0x94, 0x45,
@@ -149,6 +150,42 @@ 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;
diff --git a/sound/soc/intel/skylake/skl-nhlt.h b/sound/soc/intel/skylake/skl-nhlt.h
index 3769f9f..116534e7 100644
--- a/sound/soc/intel/skylake/skl-nhlt.h
+++ b/sound/soc/intel/skylake/skl-nhlt.h
@@ -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
diff --git a/sound/soc/intel/skylake/skl.c b/sound/soc/intel/skylake/skl.c
index 06d8c26..b0f7226 100644
--- a/sound/soc/intel/skylake/skl.c
+++ b/sound/soc/intel/skylake/skl.c
@@ -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 },
{}
};
diff --git a/sound/soc/intel/skylake/skl.h b/sound/soc/intel/skylake/skl.h
index 4b4b387..f66be17 100644
--- a/sound/soc/intel/skylake/skl.h
+++ b/sound/soc/intel/skylake/skl.h
@@ -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);
--
1.9.1
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