diff options
Diffstat (limited to 'sound')
| -rw-r--r-- | sound/hda/intel-dsp-config.c | 77 |
1 files changed, 77 insertions, 0 deletions
diff --git a/sound/hda/intel-dsp-config.c b/sound/hda/intel-dsp-config.c index 1c5114dedda9..7e6b8571c138 100644 --- a/sound/hda/intel-dsp-config.c +++ b/sound/hda/intel-dsp-config.c @@ -29,6 +29,7 @@ MODULE_PARM_DESC(dsp_driver, "Force the DSP driver for Intel DSP (0=auto, 1=lega struct config_entry { u32 flags; u16 device; + u8 acpi_hid[ACPI_ID_LEN]; const struct dmi_system_id *dmi_table; }; @@ -433,6 +434,82 @@ int snd_intel_dsp_driver_probe(struct pci_dev *pci) } EXPORT_SYMBOL_GPL(snd_intel_dsp_driver_probe); +/* + * configuration table + * - the order of similar ACPI ID entries is important! + * - the first successful match will win + */ +static const struct config_entry acpi_config_table[] = { +/* BayTrail */ +#if IS_ENABLED(CONFIG_SND_SST_ATOM_HIFI2_PLATFORM_ACPI) + { + .flags = FLAG_SST, + .acpi_hid = "80860F28", + }, +#endif +#if IS_ENABLED(CONFIG_SND_SOC_SOF_BAYTRAIL) + { + .flags = FLAG_SOF, + .acpi_hid = "80860F28", + }, +#endif +/* CherryTrail */ +#if IS_ENABLED(CONFIG_SND_SST_ATOM_HIFI2_PLATFORM_ACPI) + { + .flags = FLAG_SST, + .acpi_hid = "808622A8", + }, +#endif +#if IS_ENABLED(CONFIG_SND_SOC_SOF_BAYTRAIL) + { + .flags = FLAG_SOF, + .acpi_hid = "808622A8", + }, +#endif +}; + +static const struct config_entry *snd_intel_acpi_dsp_find_config(const u8 acpi_hid[ACPI_ID_LEN], + const struct config_entry *table, + u32 len) +{ + for (; len > 0; len--, table++) { + if (memcmp(table->acpi_hid, acpi_hid, ACPI_ID_LEN)) + continue; + if (table->dmi_table && !dmi_check_system(table->dmi_table)) + continue; + return table; + } + return NULL; +} + +int snd_intel_acpi_dsp_driver_probe(struct device *dev, const u8 acpi_hid[ACPI_ID_LEN]) +{ + const struct config_entry *cfg; + + if (dsp_driver > SND_INTEL_DSP_DRIVER_LEGACY && dsp_driver <= SND_INTEL_DSP_DRIVER_LAST) + return dsp_driver; + + if (dsp_driver == SND_INTEL_DSP_DRIVER_LEGACY) { + dev_warn(dev, "dsp_driver parameter %d not supported, using automatic detection\n", + SND_INTEL_DSP_DRIVER_LEGACY); + } + + /* find the configuration for the specific device */ + cfg = snd_intel_acpi_dsp_find_config(acpi_hid, acpi_config_table, + ARRAY_SIZE(acpi_config_table)); + if (!cfg) + return SND_INTEL_DSP_DRIVER_ANY; + + if (cfg->flags & FLAG_SST) + return SND_INTEL_DSP_DRIVER_SST; + + if (cfg->flags & FLAG_SOF) + return SND_INTEL_DSP_DRIVER_SOF; + + return SND_INTEL_DSP_DRIVER_SST; +} +EXPORT_SYMBOL_GPL(snd_intel_acpi_dsp_driver_probe); + MODULE_LICENSE("GPL v2"); MODULE_DESCRIPTION("Intel DSP config driver"); MODULE_IMPORT_NS(SOUNDWIRE_INTEL_INIT); |