From 1132ca3fbd2b20668cf3f86d676e7c8ecc529f3c Mon Sep 17 00:00:00 2001 From: Brent Lu Date: Fri, 27 Oct 2023 19:34:59 +0800 Subject: [PATCH 1/2] ALSA: hda: intel-nhlt: add intel_nhlt_ssp_device_type() function Add a helper function intel_nhlt_ssp_device_type() to detect the type of specific SSP port. The result is nhlt_device_type enum type which could be NHLT_DEVICE_BT or NHLT_DEVICE_I2S. Signed-off-by: Brent Lu --- include/sound/intel-nhlt.h | 10 ++++++++++ sound/hda/intel-nhlt.c | 26 ++++++++++++++++++++++++++ 2 files changed, 36 insertions(+) diff --git a/include/sound/intel-nhlt.h b/include/sound/intel-nhlt.h index 53470d6a28d659..24dbe16684ae33 100644 --- a/include/sound/intel-nhlt.h +++ b/include/sound/intel-nhlt.h @@ -143,6 +143,9 @@ intel_nhlt_get_endpoint_blob(struct device *dev, struct nhlt_acpi_table *nhlt, u32 bus_id, u8 link_type, u8 vbps, u8 bps, u8 num_ch, u32 rate, u8 dir, u8 dev_type); +int intel_nhlt_ssp_device_type(struct device *dev, struct nhlt_acpi_table *nhlt, + u8 virtual_bus_id); + #else static inline struct nhlt_acpi_table *intel_nhlt_init(struct device *dev) @@ -184,6 +187,13 @@ intel_nhlt_get_endpoint_blob(struct device *dev, struct nhlt_acpi_table *nhlt, return NULL; } +static inline int intel_nhlt_ssp_device_type(struct device *dev, + struct nhlt_acpi_table *nhlt, + u8 virtual_bus_id) +{ + return -EINVAL; +} + #endif #endif diff --git a/sound/hda/intel-nhlt.c b/sound/hda/intel-nhlt.c index 2c4dfc0b7e342c..67d3e834c647e6 100644 --- a/sound/hda/intel-nhlt.c +++ b/sound/hda/intel-nhlt.c @@ -318,3 +318,29 @@ intel_nhlt_get_endpoint_blob(struct device *dev, struct nhlt_acpi_table *nhlt, return NULL; } EXPORT_SYMBOL(intel_nhlt_get_endpoint_blob); + +int intel_nhlt_ssp_device_type(struct device *dev, struct nhlt_acpi_table *nhlt, + u8 virtual_bus_id) +{ + struct nhlt_endpoint *epnt; + int i; + + if (!nhlt) + return -EINVAL; + + epnt = (struct nhlt_endpoint *)nhlt->desc; + for (i = 0; i < nhlt->endpoint_count; i++) { + /* for SSP link the virtual bus id is the SSP port number */ + if (epnt->linktype == NHLT_LINK_SSP && + epnt->virtual_bus_id == virtual_bus_id) { + dev_dbg(dev, "SSP%d: dev_type=%d\n", virtual_bus_id, + epnt->device_type); + return epnt->device_type; + } + + epnt = (struct nhlt_endpoint *)((u8 *)epnt + epnt->length); + } + + return -EINVAL; +} +EXPORT_SYMBOL(intel_nhlt_ssp_device_type); From 13cef1525e39438117542e5f1a016b02ea5ba8fe Mon Sep 17 00:00:00 2001 From: Brent Lu Date: Fri, 27 Oct 2023 19:38:20 +0800 Subject: [PATCH 2/2] ASoC: SOF: ipc4-topology: support NHLT device type The endpoint in NHLT table for a SSP port could have the device type NHLT_DEVICE_BT or NHLT_DEVICE_I2S. Use intel_nhlt_ssp_device_type() function to retrieve the device type before querying the endpoint blob to make sure we are always using correct device type parameter. Signed-off-by: Brent Lu --- sound/soc/sof/ipc4-topology.c | 19 ++++++++++++++++--- 1 file changed, 16 insertions(+), 3 deletions(-) diff --git a/sound/soc/sof/ipc4-topology.c b/sound/soc/sof/ipc4-topology.c index 7b6f50a5972f5c..f38f19fbf641c9 100644 --- a/sound/soc/sof/ipc4-topology.c +++ b/sound/soc/sof/ipc4-topology.c @@ -1342,6 +1342,7 @@ static int snd_sof_get_nhlt_endpoint_data(struct snd_sof_dev *sdev, struct snd_s int sample_rate, channel_count; int bit_depth, ret; u32 nhlt_type; + int dev_type = 0; /* convert to NHLT type */ switch (linktype) { @@ -1357,18 +1358,30 @@ static int snd_sof_get_nhlt_endpoint_data(struct snd_sof_dev *sdev, struct snd_s &bit_depth); if (ret < 0) return ret; + + /* + * We need to know the type of the external device attached to a SSP + * port to retrieve the blob from NHLT. However, device type is not + * specified in topology. + * Query the type for the port and then pass that information back + * to the blob lookup function. + */ + dev_type = intel_nhlt_ssp_device_type(sdev->dev, ipc4_data->nhlt, + dai_index); + if (ret < 0) + return ret; break; default: return 0; } - dev_dbg(sdev->dev, "dai index %d nhlt type %d direction %d\n", - dai_index, nhlt_type, dir); + dev_dbg(sdev->dev, "dai index %d nhlt type %d direction %d dev type %d\n", + dai_index, nhlt_type, dir, dev_type); /* find NHLT blob with matching params */ cfg = intel_nhlt_get_endpoint_blob(sdev->dev, ipc4_data->nhlt, dai_index, nhlt_type, bit_depth, bit_depth, channel_count, sample_rate, - dir, 0); + dir, dev_type); if (!cfg) { dev_err(sdev->dev,