From 941d6933eb31b13d09a7293bc92d9d494513a372 Mon Sep 17 00:00:00 2001 From: Vijendar Mukunda Date: Thu, 1 Aug 2024 14:44:24 +0530 Subject: ASoC: intel/sdw_utils: move soundwire machine driver helper functions Move below Intel SoundWire machine driver helper functions to soc_sdw_utils.c file so that it can be used by other platform machine driver. - asoc_sdw_is_unique_device() - asoc_sdw_get_codec_name() Link: https://github.com/thesofproject/linux/pull/5068 Signed-off-by: Vijendar Mukunda Reviewed-by: Bard Liao Reviewed-by: Pierre-Louis Bossart Link: https://patch.msgid.link/20240801091446.10457-10-Vijendar.Mukunda@amd.com Signed-off-by: Mark Brown --- sound/soc/sdw_utils/soc_sdw_utils.c | 61 +++++++++++++++++++++++++++++++++++++ 1 file changed, 61 insertions(+) (limited to 'sound/soc/sdw_utils') diff --git a/sound/soc/sdw_utils/soc_sdw_utils.c b/sound/soc/sdw_utils/soc_sdw_utils.c index cccab173fd17..2b59ddc61078 100644 --- a/sound/soc/sdw_utils/soc_sdw_utils.c +++ b/sound/soc/sdw_utils/soc_sdw_utils.c @@ -146,5 +146,66 @@ void asoc_sdw_shutdown(struct snd_pcm_substream *substream) } EXPORT_SYMBOL_NS(asoc_sdw_shutdown, SND_SOC_SDW_UTILS); +static bool asoc_sdw_is_unique_device(const struct snd_soc_acpi_link_adr *adr_link, + unsigned int sdw_version, + unsigned int mfg_id, + unsigned int part_id, + unsigned int class_id, + int index_in_link) +{ + int i; + + for (i = 0; i < adr_link->num_adr; i++) { + unsigned int sdw1_version, mfg1_id, part1_id, class1_id; + u64 adr; + + /* skip itself */ + if (i == index_in_link) + continue; + + adr = adr_link->adr_d[i].adr; + + sdw1_version = SDW_VERSION(adr); + mfg1_id = SDW_MFG_ID(adr); + part1_id = SDW_PART_ID(adr); + class1_id = SDW_CLASS_ID(adr); + + if (sdw_version == sdw1_version && + mfg_id == mfg1_id && + part_id == part1_id && + class_id == class1_id) + return false; + } + + return true; +} + +const char *asoc_sdw_get_codec_name(struct device *dev, + const struct asoc_sdw_codec_info *codec_info, + const struct snd_soc_acpi_link_adr *adr_link, + int adr_index) +{ + u64 adr = adr_link->adr_d[adr_index].adr; + unsigned int sdw_version = SDW_VERSION(adr); + unsigned int link_id = SDW_DISCO_LINK_ID(adr); + unsigned int unique_id = SDW_UNIQUE_ID(adr); + unsigned int mfg_id = SDW_MFG_ID(adr); + unsigned int part_id = SDW_PART_ID(adr); + unsigned int class_id = SDW_CLASS_ID(adr); + + if (codec_info->codec_name) + return devm_kstrdup(dev, codec_info->codec_name, GFP_KERNEL); + else if (asoc_sdw_is_unique_device(adr_link, sdw_version, mfg_id, part_id, + class_id, adr_index)) + return devm_kasprintf(dev, GFP_KERNEL, "sdw:0:%01x:%04x:%04x:%02x", + link_id, mfg_id, part_id, class_id); + else + return devm_kasprintf(dev, GFP_KERNEL, "sdw:0:%01x:%04x:%04x:%02x:%01x", + link_id, mfg_id, part_id, class_id, unique_id); + + return NULL; +} +EXPORT_SYMBOL_NS(asoc_sdw_get_codec_name, SND_SOC_SDW_UTILS); + MODULE_LICENSE("GPL"); MODULE_DESCRIPTION("SoundWire ASoC helpers"); -- cgit