| /* SPDX-License-Identifier: GPL-2.0-or-later */ |
| |
| #include <acpi/acpigen.h> |
| #include <acpi/acpi_device.h> |
| #include <device/device.h> |
| #include <device/pci.h> |
| #include <device/pci_def.h> |
| #include <device/pci_ids.h> |
| #include <intelblocks/tcss.h> |
| #include <soc/pci_devs.h> |
| |
| #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, |
| }; |