/* SPDX-License-Identifier: GPL-2.0-or-later */ #include #include #include #include #include #include #include #include #define INTEL_TBT_IMR_VALID_UUID "C44D002F-69F9-4E7D-A904-A7BAABDF43F7" #define INTEL_TBT_WAKE_SUPPORTED_UUID "6C501103-C189-4296-BA72-9BF5A26EBE5D" #if CONFIG(HAVE_ACPI_TABLES) static const char *tbt_dma_acpi_name(const struct device *dev) { switch (dev->path.pci.devfn) { case SA_DEVFN_TCSS_DMA0: return "TDM0"; case SA_DEVFN_TCSS_DMA1: return "TDM1"; default: return NULL; } } static void tbt_dma_fill_ssdt(const struct device *dev) { struct acpi_dp *dsd, *pkg; if (tcss_ops.valid_tbt_auth && !tcss_ops.valid_tbt_auth()) return; acpigen_write_scope(acpi_device_path(dev)); dsd = acpi_dp_new_table("_DSD"); /* Indicate that device has valid IMR. */ pkg = acpi_dp_new_table(INTEL_TBT_IMR_VALID_UUID); acpi_dp_add_integer(pkg, "IMR_VALID", 1); acpi_dp_add_package(dsd, pkg); /* Indicate that device is wake capable. */ pkg = acpi_dp_new_table(INTEL_TBT_WAKE_SUPPORTED_UUID); acpi_dp_add_integer(pkg, "WAKE_SUPPORTED", 1); acpi_dp_add_package(dsd, pkg); acpi_dp_write(dsd); acpigen_pop_len(); /* Scope */ } #endif static const unsigned short pci_device_ids[] = { PCI_DID_INTEL_MTL_M_TBT_DMA0, PCI_DID_INTEL_MTL_P_TBT_DMA0, PCI_DID_INTEL_MTL_P_TBT_DMA1, PCI_DID_INTEL_TGL_TBT_DMA0, PCI_DID_INTEL_TGL_TBT_DMA1, PCI_DID_INTEL_TGL_H_TBT_DMA0, PCI_DID_INTEL_TGL_H_TBT_DMA1, PCI_DID_INTEL_ADL_TBT_DMA0, PCI_DID_INTEL_ADL_TBT_DMA1, 0 }; static struct device_operations usb4_dev_ops = { .read_resources = pci_dev_read_resources, .set_resources = pci_dev_set_resources, .enable_resources = pci_dev_enable_resources, .scan_bus = scan_generic_bus, .ops_pci = &pci_dev_ops_pci, #if CONFIG(HAVE_ACPI_TABLES) .acpi_name = tbt_dma_acpi_name, .acpi_fill_ssdt = tbt_dma_fill_ssdt, #endif }; static const struct pci_driver usb4_driver __pci_driver = { .ops = &usb4_dev_ops, .vendor = PCI_VID_INTEL, .devices = pci_device_ids, };