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/** @file
Debug Port Library implementation based on usb3 debug port.
Copyright (c) 2014 - 2018, Intel Corporation. All rights reserved.<BR>
This program and the accompanying materials
are licensed and made available under the terms and conditions of the BSD License
which accompanies this distribution. The full text of the license may be found at
http://opensource.org/licenses/bsd-license.php.
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
**/
#ifndef __USB3_DEBUG_PORT_LIB_INTERNAL__
#define __USB3_DEBUG_PORT_LIB_INTERNAL__
#include <Uefi.h>
#include <Base.h>
#include <IndustryStandard/Usb.h>
#include <Library/IoLib.h>
#include <IndustryStandard/Pci.h>
#include <Library/PcdLib.h>
#include <Library/UefiLib.h>
#include <Library/UefiBootServicesTableLib.h>
#include <Library/MemoryAllocationLib.h>
#include <Library/DebugLib.h>
#include <Library/BaseMemoryLib.h>
#include <Library/BaseLib.h>
#include <Library/TimerLib.h>
#include <Library/DebugCommunicationLib.h>
#include <Library/PciLib.h>
//
// USB Debug GUID value
//
#define USB3_DBG_GUID \
{ \
0xb2a56f4d, 0x9177, 0x4fc8, { 0xa6, 0x77, 0xdd, 0x96, 0x3e, 0xb4, 0xcb, 0x1b } \
}
//
// The state machine of usb debug port
//
#define USB3DBG_NO_DBG_CAB 0 // The XHCI host controller does not support debug capability
#define USB3DBG_DBG_CAB 1 // The XHCI host controller supports debug capability
#define USB3DBG_ENABLED 2 // The XHCI debug device is enabled
#define USB3DBG_NOT_ENABLED 4 // The XHCI debug device is not enabled
#define USB3DBG_UNINITIALIZED 255 // The XHCI debug device is uninitialized
#define USB3_DEBUG_PORT_WRITE_MAX_PACKET_SIZE 0x08
//
// MaxPacketSize for DbC Endpoint Descriptor IN and OUT
//
#define XHCI_DEBUG_DEVICE_MAX_PACKET_SIZE 0x400
#define XHCI_DEBUG_DEVICE_VENDOR_ID 0x0525
#define XHCI_DEBUG_DEVICE_PRODUCT_ID 0x127A
#define XHCI_DEBUG_DEVICE_PROTOCOL 0xFF
#define XHCI_DEBUG_DEVICE_REVISION 0x00
#define XHCI_BASE_ADDRESS_64_BIT_MASK 0xFFFFFFFFFFFF0000ULL
#define XHCI_BASE_ADDRESS_32_BIT_MASK 0xFFFF0000
#define PCI_CAPABILITY_ID_DEBUG_PORT 0x0A
#define XHC_HCCPARAMS_OFFSET 0x10
#define XHC_CAPABILITY_ID_MASK 0xFF
#define XHC_NEXT_CAPABILITY_MASK 0xFF00
#define XHC_HCSPARAMS1_OFFSET 0x4 // Structural Parameters 1
#define XHC_USBCMD_OFFSET 0x0 // USB Command Register Offset
#define XHC_USBSTS_OFFSET 0x4 // USB Status Register Offset
#define XHC_PORTSC_OFFSET 0x400 // Port Status and Control Register Offset
#define XHC_USBCMD_RUN BIT0 // Run/Stop
#define XHC_USBCMD_RESET BIT1 // Host Controller Reset
#define XHC_USBSTS_HALT BIT0
//
// Indicate the timeout when data is transferred in microsecond. 0 means infinite timeout.
//
#define DATA_TRANSFER_WRITE_TIMEOUT 0
#define DATA_TRANSFER_READ_TIMEOUT 50000
#define DATA_TRANSFER_POLL_TIMEOUT 1000
#define XHC_DEBUG_PORT_1_MILLISECOND 1000
//
// XHCI port power off/on delay
//
#define XHC_DEBUG_PORT_ON_OFF_DELAY 100000
//
// USB debug device string descritpor (header size + unicode string length)
//
#define STRING0_DESC_LEN 4
#define MANU_DESC_LEN 12
#define PRODUCT_DESC_LEN 40
#define SERIAL_DESC_LEN 4
//
// Debug Capability Register Offset
//
#define XHC_DC_DCID 0x0
#define XHC_DC_DCDB 0x4
#define XHC_DC_DCERSTSZ 0x8
#define XHC_DC_DCERSTBA 0x10
#define XHC_DC_DCERDP 0x18
#define XHC_DC_DCCTRL 0x20
#define XHC_DC_DCST 0x24
#define XHC_DC_DCPORTSC 0x28
#define XHC_DC_DCCP 0x30
#define XHC_DC_DCDDI1 0x38
#define XHC_DC_DCDDI2 0x3C
#define TRB_TYPE_LINK 6
#define ERST_NUMBER 0x01
#define TR_RING_TRB_NUMBER 0x100
#define EVENT_RING_TRB_NUMBER 0x200
#define ED_BULK_OUT 2
#define ED_BULK_IN 6
#define XHC_LOW_32BIT(Addr64) ((UINT32)(((UINTN)(Addr64)) & 0xFFFFFFFF))
#define XHC_HIGH_32BIT(Addr64) ((UINT32)(RShiftU64((UINT64)(UINTN)(Addr64), 32) & 0xFFFFFFFF))
#define XHC_BIT_IS_SET(Data, Bit) ((BOOLEAN)(((Data) & (Bit)) == (Bit)))
//
// Endpoint Type (EP Type).
//
#define ED_NOT_VALID 0
#define ED_ISOCH_OUT 1
#define ED_BULK_OUT 2
#define ED_INTERRUPT_OUT 3
#define ED_CONTROL_BIDIR 4
#define ED_ISOCH_IN 5
#define ED_BULK_IN 6
#define ED_INTERRUPT_IN 7
//
// 6.4.5 TRB Completion Codes
//
#define TRB_COMPLETION_INVALID 0
#define TRB_COMPLETION_SUCCESS 1
#define TRB_COMPLETION_DATA_BUFFER_ERROR 2
#define TRB_COMPLETION_BABBLE_ERROR 3
#define TRB_COMPLETION_USB_TRANSACTION_ERROR 4
#define TRB_COMPLETION_TRB_ERROR 5
#define TRB_COMPLETION_STALL_ERROR 6
#define TRB_COMPLETION_SHORT_PACKET 13
//
// 6.4.6 TRB Types
//
#define TRB_TYPE_NORMAL 1
#define TRB_TYPE_SETUP_STAGE 2
#define TRB_TYPE_DATA_STAGE 3
#define TRB_TYPE_STATUS_STAGE 4
#define TRB_TYPE_ISOCH 5
#define TRB_TYPE_LINK 6
#define TRB_TYPE_EVENT_DATA 7
#define TRB_TYPE_NO_OP 8
#define TRB_TYPE_EN_SLOT 9
#define TRB_TYPE_DIS_SLOT 10
#define TRB_TYPE_ADDRESS_DEV 11
#define TRB_TYPE_CON_ENDPOINT 12
#define TRB_TYPE_EVALU_CONTXT 13
#define TRB_TYPE_RESET_ENDPOINT 14
#define TRB_TYPE_STOP_ENDPOINT 15
#define TRB_TYPE_SET_TR_DEQUE 16
#define TRB_TYPE_RESET_DEV 17
#define TRB_TYPE_GET_PORT_BANW 21
#define TRB_TYPE_FORCE_HEADER 22
#define TRB_TYPE_NO_OP_COMMAND 23
#define TRB_TYPE_TRANS_EVENT 32
#define TRB_TYPE_COMMAND_COMPLT_EVENT 33
#define TRB_TYPE_PORT_STATUS_CHANGE_EVENT 34
#define TRB_TYPE_HOST_CONTROLLER_EVENT 37
#define TRB_TYPE_DEVICE_NOTIFI_EVENT 38
#define TRB_TYPE_MFINDEX_WRAP_EVENT 39
//
// Convert millisecond to microsecond.
//
#define XHC_1_MILLISECOND (1000)
#define XHC_POLL_DELAY (1000)
#define XHC_GENERIC_TIMEOUT (10 * 1000)
#define EFI_USB_SPEED_FULL 0x0000 ///< 12 Mb/s, USB 1.1 OHCI and UHCI HC.
#define EFI_USB_SPEED_LOW 0x0001 ///< 1 Mb/s, USB 1.1 OHCI and UHCI HC.
#define EFI_USB_SPEED_HIGH 0x0002 ///< 480 Mb/s, USB 2.0 EHCI HC.
#define EFI_USB_SPEED_SUPER 0x0003 ///< 4.8 Gb/s, USB 3.0 XHCI HC.
//
// Transfer types, used in URB to identify the transfer type
//
#define XHC_CTRL_TRANSFER 0x01
#define XHC_BULK_TRANSFER 0x02
#define XHC_INT_TRANSFER_SYNC 0x04
#define XHC_INT_TRANSFER_ASYNC 0x08
#define XHC_INT_ONLY_TRANSFER_ASYNC 0x10
//
// USB Transfer Results
//
#define EFI_USB_NOERROR 0x00
#define EFI_USB_ERR_NOTEXECUTE 0x01
#define EFI_USB_ERR_STALL 0x02
#define EFI_USB_ERR_BUFFER 0x04
#define EFI_USB_ERR_BABBLE 0x08
#define EFI_USB_ERR_NAK 0x10
#define EFI_USB_ERR_CRC 0x20
#define EFI_USB_ERR_TIMEOUT 0x40
#define EFI_USB_ERR_BITSTUFF 0x80
#define EFI_USB_ERR_SYSTEM 0x100
#pragma pack(1)
//
// 7.6.9 OUT/IN EP Context: 64 bytes
// 7.6.9.2 When used by the DbC it is always a 64 byte data structure
//
typedef struct _ENDPOINT_CONTEXT_64 {
UINT32 EPState:3;
UINT32 RsvdZ1:5;
UINT32 Mult:2; // set to 0
UINT32 MaxPStreams:5; // set to 0
UINT32 LSA:1; // set to 0
UINT32 Interval:8; // set to 0
UINT32 RsvdZ2:8;
UINT32 RsvdZ3:1;
UINT32 CErr:2;
UINT32 EPType:3;
UINT32 RsvdZ4:1;
UINT32 HID:1; // set to 0
UINT32 MaxBurstSize:8;
UINT32 MaxPacketSize:16;
UINT32 PtrLo;
UINT32 PtrHi;
UINT32 AverageTRBLength:16;
UINT32 MaxESITPayload:16; // set to 0
UINT32 RsvdZ5; // Reserved
UINT32 RsvdZ6;
UINT32 RsvdZ7;
UINT32 RsvdZ8;
UINT32 RsvdZ9;
UINT32 RsvdZ10;
UINT32 RsvdZ11;
UINT32 RsvdZ12;
UINT32 RsvdZ13;
UINT32 RsvdZ14;
UINT32 RsvdZ15;
} ENDPOINT_CONTEXT_64;
//
// 6.4.1.1 Normal TRB: 16 bytes
// A Normal TRB is used in several ways; exclusively on Bulk and Interrupt Transfer Rings for normal and
// Scatter/Gather operations, to define additional data buffers for Scatter/Gather operations on Isoch Transfer
// Rings, and to define the Data stage information for Control Transfer Rings.
//
typedef struct _TRANSFER_TRB_NORMAL {
UINT32 TRBPtrLo;
UINT32 TRBPtrHi;
UINT32 Length:17;
UINT32 TDSize:5;
UINT32 IntTarget:10;
UINT32 CycleBit:1;
UINT32 ENT:1;
UINT32 ISP:1;
UINT32 NS:1;
UINT32 CH:1;
UINT32 IOC:1;
UINT32 IDT:1;
UINT32 RsvdZ1:2;
UINT32 BEI:1;
UINT32 Type:6;
UINT32 RsvdZ2:16;
} TRANSFER_TRB_NORMAL;
//
// 6.4.2.1 Transfer Event TRB: 16 bytes
// A Transfer Event provides the completion status associated with a Transfer TRB. Refer to section 4.11.3.1
// for more information on the use and operation of Transfer Events.
//
typedef struct _EVT_TRB_TRANSFER {
UINT32 TRBPtrLo;
UINT32 TRBPtrHi;
UINT32 Length:24;
UINT32 Completecode:8;
UINT32 CycleBit:1;
UINT32 RsvdZ1:1;
UINT32 ED:1;
UINT32 RsvdZ2:7;
UINT32 Type:6;
UINT32 EndpointId:5;
UINT32 RsvdZ3:3;
UINT32 SlotId:8;
} EVT_TRB_TRANSFER;
//
// 6.4.4.1 Link TRB: 16 bytes
// A Link TRB provides support for non-contiguous TRB Rings.
//
typedef struct _LINK_TRB {
UINT32 PtrLo;
UINT32 PtrHi;
UINT32 RsvdZ1:22;
UINT32 InterTarget:10;
UINT32 CycleBit:1;
UINT32 TC:1;
UINT32 RsvdZ2:2;
UINT32 CH:1;
UINT32 IOC:1;
UINT32 RsvdZ3:4;
UINT32 Type:6;
UINT32 RsvdZ4:16;
} LINK_TRB;
//
// TRB Template: 16 bytes
//
typedef struct _TRB_TEMPLATE {
UINT32 Parameter1;
UINT32 Parameter2;
UINT32 Status;
UINT32 CycleBit:1;
UINT32 RsvdZ1:9;
UINT32 Type:6;
UINT32 Control:16;
} TRB_TEMPLATE;
//
// Refer to XHCI 6.5 Event Ring Segment Table: 16 bytes
//
typedef struct _EVENT_RING_SEG_TABLE_ENTRY {
UINT32 PtrLo;
UINT32 PtrHi;
UINT32 RingTrbSize:16;
UINT32 RsvdZ1:16;
UINT32 RsvdZ2;
} EVENT_RING_SEG_TABLE_ENTRY;
//
// Size: 40 bytes
//
typedef struct _EVENT_RING {
EFI_PHYSICAL_ADDRESS ERSTBase;
EFI_PHYSICAL_ADDRESS EventRingSeg0;
UINT32 TrbNumber;
EFI_PHYSICAL_ADDRESS EventRingEnqueue;
EFI_PHYSICAL_ADDRESS EventRingDequeue;
UINT32 EventRingCCS;
} EVENT_RING;
// Size: 32 bytes
typedef struct _TRANSFER_RING {
EFI_PHYSICAL_ADDRESS RingSeg0;
UINT32 TrbNumber;
EFI_PHYSICAL_ADDRESS RingEnqueue;
EFI_PHYSICAL_ADDRESS RingDequeue;
UINT32 RingPCS;
} TRANSFER_RING;
//
// Size: 64 bytes
//
typedef struct _DBC_INFO_CONTEXT {
UINT64 String0DescAddress;
UINT64 ManufacturerStrDescAddress;
UINT64 ProductStrDescAddress;
UINT64 SerialNumberStrDescAddress;
UINT64 String0Length:8;
UINT64 ManufacturerStrLength:8;
UINT64 ProductStrLength:8;
UINT64 SerialNumberStrLength:8;
UINT64 RsvdZ1:32;
UINT64 RsvdZ2;
UINT64 RsvdZ3;
UINT64 RsvdZ4;
} DBC_INFO_CONTEXT;
//
// Debug Capability Context Data Structure: 192 bytes
//
typedef struct _XHC_DC_CONTEXT {
DBC_INFO_CONTEXT DbcInfoContext;
ENDPOINT_CONTEXT_64 EpOutContext;
ENDPOINT_CONTEXT_64 EpInContext;
} XHC_DC_CONTEXT;
//
// Size: 16 bytes
//
typedef union _TRB {
TRB_TEMPLATE TrbTemplate;
TRANSFER_TRB_NORMAL TrbNormal;
} TRB;
///
/// USB data transfer direction
///
typedef enum {
EfiUsbDataIn,
EfiUsbDataOut,
EfiUsbNoData
} EFI_USB_DATA_DIRECTION;
//
// URB (Usb Request Block) contains information for all kinds of
// usb requests.
//
typedef struct _URB {
//
// Transfer data buffer
//
EFI_PHYSICAL_ADDRESS Data;
UINT32 DataLen;
//
// Execute result
//
UINT32 Result;
//
// Completed data length
//
UINT32 Completed;
//
// Tranfer Ring info
//
EFI_PHYSICAL_ADDRESS Ring;
EFI_PHYSICAL_ADDRESS Trb;
BOOLEAN Finished;
EFI_USB_DATA_DIRECTION Direction;
} URB;
typedef struct _USB3_DEBUG_PORT_INSTANCE {
UINT8 Initialized;
//
// The flag indicates debug capability is supported
//
BOOLEAN DebugSupport;
//
// The flag indicates debug device is ready
//
BOOLEAN Ready;
//
// The flag indicates the instance is from HOB
//
BOOLEAN FromHob;
//
// IOMMU PPI Notify registered
//
BOOLEAN PpiNotifyRegistered;
//
// Prevent notification being interrupted by debug timer
//
BOOLEAN InNotify;
//
// PciIo protocol event
//
EFI_PHYSICAL_ADDRESS PciIoEvent;
//
// The flag indicates if USB 3.0 ports has been turn off/on power
//
BOOLEAN ChangePortPower;
//
// XHCI MMIO Base address
//
EFI_PHYSICAL_ADDRESS XhciMmioBase;
//
// XHCI OP RegisterBase address
//
EFI_PHYSICAL_ADDRESS XhciOpRegister;
//
// XHCI Debug Register Base Address
//
EFI_PHYSICAL_ADDRESS DebugCapabilityBase;
//
// XHCI Debug Capability offset
//
UINT64 DebugCapabilityOffset;
//
// XHCI Debug Context Address
//
EFI_PHYSICAL_ADDRESS DebugCapabilityContext;
//
// Transfer Ring
//
TRANSFER_RING TransferRingOut;
TRANSFER_RING TransferRingIn;
//
// EventRing
//
EVENT_RING EventRing;
//
// URB - Read
//
URB UrbOut;
//
// URB - Write
//
URB UrbIn;
//
// The available data length in the following data buffer.
//
UINT8 DataCount;
//
// The data buffer address for data read and poll.
//
EFI_PHYSICAL_ADDRESS Data;
} USB3_DEBUG_PORT_HANDLE;
#pragma pack()
/**
Read XHCI debug register.
@param Handle Debug port handle.
@param Offset The offset of the debug register.
@return The register content read
**/
UINT32
XhcReadDebugReg (
IN USB3_DEBUG_PORT_HANDLE *Handle,
IN UINT32 Offset
);
/**
Set one bit of the debug register while keeping other bits.
@param Handle Debug port handle.
@param Offset The offset of the debug register.
@param Bit The bit mask of the register to set.
**/
VOID
XhcSetDebugRegBit (
IN USB3_DEBUG_PORT_HANDLE *Handle,
IN UINT32 Offset,
IN UINT32 Bit
);
/**
Write the data to the debug register.
@param Handle Debug port handle.
@param Offset The offset of the debug register.
@param Data The data to write.
**/
VOID
XhcWriteDebugReg (
IN USB3_DEBUG_PORT_HANDLE *Handle,
IN UINT32 Offset,
IN UINT32 Data
);
/**
Discover the USB3 debug device.
@param Handle Debug port handle.
@retval RETURN_SUCCESS The serial device was initialized.
@retval RETURN_DEVICE_ERROR The serial device could not be initialized.
**/
RETURN_STATUS
DiscoverUsb3DebugPort(
USB3_DEBUG_PORT_HANDLE *Handle
);
/**
Initialize the Serial Device hardware.
@param Handle Debug port handle.
@retval RETURN_SUCCESS The serial device was initialized successfully.
@retval !RETURN_SUCCESS Error.
**/
RETURN_STATUS
InitializeUsb3DebugPort (
USB3_DEBUG_PORT_HANDLE *Handle
);
/**
Return XHCI MMIO base address.
**/
EFI_PHYSICAL_ADDRESS
GetXhciBaseAddress (
VOID
);
/**
Verifies if the bit positions specified by a mask are set in a register.
@param[in, out] Register UNITN register
@param[in] BitMask 32-bit mask
@return BOOLEAN - TRUE if all bits specified by the mask are enabled.
- FALSE even if one of the bits specified by the mask
is not enabled.
**/
BOOLEAN
XhcIsBitSet(
UINTN Register,
UINT32 BitMask
);
/**
Sets bits as per the enabled bit positions in the mask.
@param[in, out] Register UINTN register
@param[in] BitMask 32-bit mask
**/
VOID
XhcSetR32Bit(
UINTN Register,
UINT32 BitMask
);
/**
Clears bits as per the enabled bit positions in the mask.
@param[in, out] Register UINTN register
@param[in] BitMask 32-bit mask
**/
VOID
XhcClearR32Bit(
IN OUT UINTN Register,
IN UINT32 BitMask
);
/**
Initialize USB3 debug port.
This method invokes various internal functions to facilitate
detection and initialization of USB3 debug port.
@retval RETURN_SUCCESS The serial device was initialized.
**/
RETURN_STATUS
EFIAPI
USB3Initialize (
VOID
);
/**
Return command register value in XHCI controller.
**/
UINT16
GetXhciPciCommand (
VOID
);
/**
Allocate aligned memory for XHC's usage.
@param BufferSize The size, in bytes, of the Buffer.
@return A pointer to the allocated buffer or NULL if allocation fails.
**/
VOID*
AllocateAlignBuffer (
IN UINTN BufferSize
);
/**
The real function to initialize USB3 debug port.
This method invokes various internal functions to facilitate
detection and initialization of USB3 debug port.
@retval RETURN_SUCCESS The serial device was initialized.
**/
RETURN_STATUS
EFIAPI
USB3InitializeReal (
VOID
);
/**
Submits bulk transfer to a bulk endpoint of a USB device.
@param Handle The instance of debug device.
@param Direction The direction of data transfer.
@param Data Array of pointers to the buffers of data to transmit
from or receive into.
@param DataLength The lenght of the data buffer.
@param Timeout Indicates the maximum time, in millisecond, which
the transfer is allowed to complete.
@retval EFI_SUCCESS The transfer was completed successfully.
@retval EFI_OUT_OF_RESOURCES The transfer failed due to lack of resource.
@retval EFI_INVALID_PARAMETER Some parameters are invalid.
@retval EFI_TIMEOUT The transfer failed due to timeout.
@retval EFI_DEVICE_ERROR The transfer failed due to host controller error.
**/
EFI_STATUS
EFIAPI
XhcDataTransfer (
IN USB3_DEBUG_PORT_HANDLE *Handle,
IN EFI_USB_DATA_DIRECTION Direction,
IN OUT VOID *Data,
IN OUT UINTN *DataLength,
IN UINTN Timeout
);
/**
Initialize usb debug port hardware.
@param Handle Debug port handle.
@retval TRUE The usb debug port hardware configuration is changed.
@retval FALSE The usb debug port hardware configuration is not changed.
**/
RETURN_STATUS
EFIAPI
InitializeUsbDebugHardware (
IN USB3_DEBUG_PORT_HANDLE *Handle
);
/**
Discover and initialize usb debug port.
@param Handle Debug port handle.
**/
VOID
DiscoverInitializeUsbDebugPort (
IN USB3_DEBUG_PORT_HANDLE *Handle
);
/**
Return USB3 debug instance address.
**/
USB3_DEBUG_PORT_HANDLE *
GetUsb3DebugPortInstance (
VOID
);
#endif //__SERIAL_PORT_LIB_USB__
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