129 lines
4.1 KiB
C
129 lines
4.1 KiB
C
/** @file
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USB4 host router routines used after PCI bus driver enumeration.
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@copyright
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INTEL CONFIDENTIAL
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Copyright 2021 Intel Corporation.
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The source code contained or described herein and all documents related to the
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source code ("Material") are owned by Intel Corporation or its suppliers or
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licensors. Title to the Material remains with Intel Corporation or its suppliers
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and licensors. The Material may contain trade secrets and proprietary and
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confidential information of Intel Corporation and its suppliers and licensors,
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and is protected by worldwide copyright and trade secret laws and treaty
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provisions. No part of the Material may be used, copied, reproduced, modified,
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published, uploaded, posted, transmitted, distributed, or disclosed in any way
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without Intel's prior express written permission.
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No license under any patent, copyright, trade secret or other intellectual
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property right is granted to or conferred upon you by disclosure or delivery
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of the Materials, either expressly, by implication, inducement, estoppel or
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otherwise. Any license under such intellectual property rights must be
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express and approved by Intel in writing.
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Unless otherwise agreed by Intel in writing, you may not remove or alter
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this notice or any other notice embedded in Materials by Intel or
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Intel's suppliers or licensors in any way.
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This file contains a 'Sample Driver' and is licensed as such under the terms
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of your license agreement with Intel or your vendor. This file may be modified
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by the user, subject to the additional terms of the license agreement.
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@par Specification Reference:
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**/
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#include <Uefi.h>
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#include <Library/BaseLib.h>
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#include <Library/PciSegmentLib.h>
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#include <Library/DebugLib.h>
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#include <Library/CmUtilsLib.h>
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#include <Library/Usb4HrSrvLib.h>
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#include <Library/Usb4HiCoreLib.h>
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#include <Usb4Common.h>
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#include <Usb4PlatformInfo.h>
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#include <Usb4HrInst.h>
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#include "Usb4IhrPci.h"
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#include "Usb4DhrPci.h"
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/**
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Destroy USB4 host interface and host router instance.
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@param[in] Usb4Hr - Pointer to USB4 host router instance.
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**/
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VOID
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PostPciUsb4HrDestroy (
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IN USB4_HR_INSTANCE *Usb4Hr
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)
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{
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DEBUG ((DEBUG_INFO, "PostPciUsb4HrDestroy entry\n"));
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if (Usb4Hr == NULL) {
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DEBUG ((DEBUG_ERROR, "PostPciUsb4HrDestroy: Null Usb4Hr\n"));
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goto Exit;
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}
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Usb4HiCoreDestroy (&(Usb4Hr->HiCore));
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CmFreeMem (Usb4Hr);
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Exit:
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DEBUG ((DEBUG_INFO, "PostPciUsb4HrDestroy exit\n"));
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}
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/**
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Start USB4 host router.
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- Query USB4 host router PCI resources assigned by PCI bus driver.
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- Initialize USB4 host interface.
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@param[in] Usb4Hr - Pointer to USB4 host router instance.
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@retval EFI_SUCCESS - Start USB4 host router successfully.
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@retval EFI_UNSUPPORTED - Fail to start USB4 host router.
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@retval EFI_INVALID_PARAMETER - Invalid parameter.
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**/
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EFI_STATUS
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PostPciUsb4HrStart (
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IN USB4_HR_INSTANCE *Usb4Hr
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)
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{
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EFI_STATUS Status;
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PCI_DEV_BDF *NhiBdf;
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DEBUG ((DEBUG_INFO, "PostPciUsb4HrStart entry\n"));
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if (Usb4Hr == NULL) {
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DEBUG ((DEBUG_ERROR, "PostPciUsb4HrStart: Null Usb4Hr\n"));
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Status = EFI_INVALID_PARAMETER;
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goto Exit;
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}
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//
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// Query PCI information of USB4 host router after PCI enumeration
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//
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if (Usb4Hr->HrInfo.IntegratedHr) {
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Status = Iusb4HrPciQuery (Usb4Hr);
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} else {
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Status = Dusb4HrPciQuery (Usb4Hr);
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}
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if (EFI_ERROR (Status)) {
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DEBUG ((DEBUG_ERROR, "PostPciUsb4HrStart: Query USB4 HR PCI information failure, %r\n", Status));
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goto Exit;
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}
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NhiBdf = &(Usb4Hr->HrInfo.NhiBdf);
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DEBUG ((DEBUG_INFO, "USB4 host BDF (%d/%d/%d)\n", NhiBdf->Bus, NhiBdf->Dev, NhiBdf->Func));
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DEBUG ((DEBUG_INFO, "Dump BAR0 MMIO (0x%016llx) content:\n", Usb4Hr->MmioBase));
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HrSrvMmioDump (Usb4Hr->MmioBase, 12 *4);
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//
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// Initialize USB4 host interface.
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// Note: Call Usb4HiCoreCreate instead in driver model driver.
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//
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Status = Usb4HiCoreStart (&(Usb4Hr->HiCore));
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if (EFI_ERROR (Status)) {
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DEBUG ((DEBUG_ERROR, "PostPciUsb4HrStart: Fail to initialize USB4 host interface.\n"));
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goto Exit;
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}
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Exit:
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DEBUG ((DEBUG_INFO, "PostPciUsb4HrStart exit\n"));
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return Status;
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}
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