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audk/Omap35xxPkg/PciEmulation/PciEmulation.c

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/** @file
Copyright (c) 2008 - 2009, Apple Inc. 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.
**/
#include "PciEmulation.h"
EMBEDDED_EXTERNAL_DEVICE *gTPS65950;
#define HOST_CONTROLLER_OPERATION_REG_SIZE 0x44
typedef struct {
ACPI_HID_DEVICE_PATH AcpiDevicePath;
PCI_DEVICE_PATH PciDevicePath;
EFI_DEVICE_PATH_PROTOCOL EndDevicePath;
} EFI_PCI_IO_DEVICE_PATH;
typedef struct {
UINT32 Signature;
EFI_PCI_IO_DEVICE_PATH DevicePath;
EFI_PCI_IO_PROTOCOL PciIoProtocol;
PCI_TYPE00 *ConfigSpace;
PCI_ROOT_BRIDGE RootBridge;
UINTN Segment;
} EFI_PCI_IO_PRIVATE_DATA;
#define EFI_PCI_IO_PRIVATE_DATA_SIGNATURE SIGNATURE_32('p', 'c', 'i', 'o')
#define EFI_PCI_IO_PRIVATE_DATA_FROM_THIS(a) CR(a, EFI_PCI_IO_PRIVATE_DATA, PciIoProtocol, EFI_PCI_IO_PRIVATE_DATA_SIGNATURE)
EFI_PCI_IO_DEVICE_PATH PciIoDevicePathTemplate =
{
{
{ ACPI_DEVICE_PATH, ACPI_DP, { sizeof (ACPI_HID_DEVICE_PATH), 0 } },
EISA_PNP_ID(0x0A03), // HID
0 // UID
},
{
{ HARDWARE_DEVICE_PATH, HW_PCI_DP, { sizeof (PCI_DEVICE_PATH), 0 } },
0,
0
},
{ END_DEVICE_PATH_TYPE, END_ENTIRE_DEVICE_PATH_SUBTYPE, { sizeof (EFI_DEVICE_PATH_PROTOCOL), 0} }
};
STATIC
VOID
ConfigureUSBHost (
VOID
)
{
EFI_STATUS Status;
UINT8 Data = 0;
// Take USB host out of force-standby mode
MmioWrite32 (UHH_SYSCONFIG, UHH_SYSCONFIG_MIDLEMODE_NO_STANDBY
| UHH_SYSCONFIG_CLOCKACTIVITY_ON
| UHH_SYSCONFIG_SIDLEMODE_NO_STANDBY
| UHH_SYSCONFIG_ENAWAKEUP_ENABLE
| UHH_SYSCONFIG_AUTOIDLE_ALWAYS_RUN);
MmioWrite32 (UHH_HOSTCONFIG, UHH_HOSTCONFIG_P3_CONNECT_STATUS_DISCONNECT
| UHH_HOSTCONFIG_P2_CONNECT_STATUS_DISCONNECT
| UHH_HOSTCONFIG_P1_CONNECT_STATUS_DISCONNECT
| UHH_HOSTCONFIG_ENA_INCR_ALIGN_DISABLE
| UHH_HOSTCONFIG_ENA_INCR16_ENABLE
| UHH_HOSTCONFIG_ENA_INCR8_ENABLE
| UHH_HOSTCONFIG_ENA_INCR4_ENABLE
| UHH_HOSTCONFIG_AUTOPPD_ON_OVERCUR_EN_ON
| UHH_HOSTCONFIG_P1_ULPI_BYPASS_ULPI_MODE);
// USB reset (GPIO 147 - Port 5 pin 19) output high
MmioAnd32 (GPIO5_BASE + GPIO_OE, ~BIT19);
MmioWrite32 (GPIO5_BASE + GPIO_SETDATAOUT, BIT19);
// Get the Power IC protocol
Status = gBS->LocateProtocol (&gEmbeddedExternalDeviceProtocolGuid, NULL, (VOID **)&gTPS65950);
ASSERT_EFI_ERROR (Status);
// Power the USB PHY
Data = VAUX_DEV_GRP_P1;
Status = gTPS65950->Write (gTPS65950, EXTERNAL_DEVICE_REGISTER(I2C_ADDR_GRP_ID4, VAUX2_DEV_GRP), 1, &Data);
ASSERT_EFI_ERROR(Status);
Data = VAUX_DEDICATED_18V;
Status = gTPS65950->Write (gTPS65950, EXTERNAL_DEVICE_REGISTER(I2C_ADDR_GRP_ID4, VAUX2_DEDICATED), 1, &Data);
ASSERT_EFI_ERROR (Status);
// Enable power to the USB hub
Status = gTPS65950->Read (gTPS65950, EXTERNAL_DEVICE_REGISTER(I2C_ADDR_GRP_ID3, LEDEN), 1, &Data);
ASSERT_EFI_ERROR (Status);
// LEDAON controls the power to the USB host, PWM is disabled
Data &= ~LEDAPWM;
Data |= LEDAON;
Status = gTPS65950->Write (gTPS65950, EXTERNAL_DEVICE_REGISTER(I2C_ADDR_GRP_ID3, LEDEN), 1, &Data);
ASSERT_EFI_ERROR (Status);
}
EFI_STATUS
PciIoPollMem (
IN EFI_PCI_IO_PROTOCOL *This,
IN EFI_PCI_IO_PROTOCOL_WIDTH Width,
IN UINT8 BarIndex,
IN UINT64 Offset,
IN UINT64 Mask,
IN UINT64 Value,
IN UINT64 Delay,
OUT UINT64 *Result
)
{
ASSERT (FALSE);
return EFI_UNSUPPORTED;
}
EFI_STATUS
PciIoPollIo (
IN EFI_PCI_IO_PROTOCOL *This,
IN EFI_PCI_IO_PROTOCOL_WIDTH Width,
IN UINT8 BarIndex,
IN UINT64 Offset,
IN UINT64 Mask,
IN UINT64 Value,
IN UINT64 Delay,
OUT UINT64 *Result
)
{
ASSERT (FALSE);
return EFI_UNSUPPORTED;
}
EFI_STATUS
PciIoMemRead (
IN EFI_PCI_IO_PROTOCOL *This,
IN EFI_PCI_IO_PROTOCOL_WIDTH Width,
IN UINT8 BarIndex,
IN UINT64 Offset,
IN UINTN Count,
IN OUT VOID *Buffer
)
{
EFI_PCI_IO_PRIVATE_DATA *Private = EFI_PCI_IO_PRIVATE_DATA_FROM_THIS(This);
return PciRootBridgeIoMemRead (&Private->RootBridge.Io,
(EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL_WIDTH) Width,
Private->ConfigSpace->Device.Bar[BarIndex] + Offset,
Count,
Buffer
);
}
EFI_STATUS
PciIoMemWrite (
IN EFI_PCI_IO_PROTOCOL *This,
IN EFI_PCI_IO_PROTOCOL_WIDTH Width,
IN UINT8 BarIndex,
IN UINT64 Offset,
IN UINTN Count,
IN OUT VOID *Buffer
)
{
EFI_PCI_IO_PRIVATE_DATA *Private = EFI_PCI_IO_PRIVATE_DATA_FROM_THIS(This);
return PciRootBridgeIoMemWrite (&Private->RootBridge.Io,
(EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL_WIDTH) Width,
Private->ConfigSpace->Device.Bar[BarIndex] + Offset,
Count,
Buffer
);
}
EFI_STATUS
PciIoIoRead (
IN EFI_PCI_IO_PROTOCOL *This,
IN EFI_PCI_IO_PROTOCOL_WIDTH Width,
IN UINT8 BarIndex,
IN UINT64 Offset,
IN UINTN Count,
IN OUT VOID *Buffer
)
{
ASSERT (FALSE);
return EFI_UNSUPPORTED;
}
EFI_STATUS
PciIoIoWrite (
IN EFI_PCI_IO_PROTOCOL *This,
IN EFI_PCI_IO_PROTOCOL_WIDTH Width,
IN UINT8 BarIndex,
IN UINT64 Offset,
IN UINTN Count,
IN OUT VOID *Buffer
)
{
ASSERT (FALSE);
return EFI_UNSUPPORTED;
}
/**
Enable a PCI driver to read PCI controller registers in PCI configuration space.
@param[in] This A pointer to the EFI_PCI_IO_PROTOCOL instance.
@param[in] Width Signifies the width of the memory operations.
@param[in] Offset The offset within the PCI configuration space for
the PCI controller.
@param[in] Count The number of PCI configuration operations to
perform. Bytes moved is Width size * Count,
starting at Offset.
@param[in out] Buffer The destination buffer to store the results.
@retval EFI_SUCCESS The data was read from the PCI controller.
@retval EFI_INVALID_PARAMETER "Width" is invalid.
@retval EFI_INVALID_PARAMETER "Buffer" is NULL.
**/
EFI_STATUS
PciIoPciRead (
IN EFI_PCI_IO_PROTOCOL *This,
IN EFI_PCI_IO_PROTOCOL_WIDTH Width,
IN UINT32 Offset,
IN UINTN Count,
IN OUT VOID *Buffer
)
{
EFI_PCI_IO_PRIVATE_DATA *Private = EFI_PCI_IO_PRIVATE_DATA_FROM_THIS (This);
EFI_STATUS Status;
if ((Width < 0) || (Width >= EfiPciIoWidthMaximum) || (Buffer == NULL)) {
return EFI_INVALID_PARAMETER;
}
Status = PciRootBridgeIoMemRW (
(EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL_WIDTH)Width,
Count,
TRUE,
(PTR)(UINTN)Buffer,
TRUE,
(PTR)(UINTN)(((UINT8 *)Private->ConfigSpace) + Offset) //Fix me ConfigSpace
);
return Status;
}
/**
Enable a PCI driver to write PCI controller registers in PCI configuration space.
@param[in] This A pointer to the EFI_PCI_IO_PROTOCOL instance.
@param[in] Width Signifies the width of the memory operations.
@param[in] Offset The offset within the PCI configuration space for
the PCI controller.
@param[in] Count The number of PCI configuration operations to
perform. Bytes moved is Width size * Count,
starting at Offset.
@param[in out] Buffer The source buffer to write data from.
@retval EFI_SUCCESS The data was read from the PCI controller.
@retval EFI_INVALID_PARAMETER "Width" is invalid.
@retval EFI_INVALID_PARAMETER "Buffer" is NULL.
**/
EFI_STATUS
PciIoPciWrite (
IN EFI_PCI_IO_PROTOCOL *This,
IN EFI_PCI_IO_PROTOCOL_WIDTH Width,
IN UINT32 Offset,
IN UINTN Count,
IN OUT VOID *Buffer
)
{
EFI_PCI_IO_PRIVATE_DATA *Private = EFI_PCI_IO_PRIVATE_DATA_FROM_THIS (This);
if ((Width < 0) || (Width >= EfiPciIoWidthMaximum) || (Buffer == NULL)) {
return EFI_INVALID_PARAMETER;
}
return PciRootBridgeIoMemRW ((EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL_WIDTH) Width,
Count,
TRUE,
(PTR)(UINTN)(((UINT8 *)Private->ConfigSpace) + Offset),
TRUE,
(PTR)(UINTN)Buffer
);
}
EFI_STATUS
PciIoCopyMem (
IN EFI_PCI_IO_PROTOCOL *This,
IN EFI_PCI_IO_PROTOCOL_WIDTH Width,
IN UINT8 DestBarIndex,
IN UINT64 DestOffset,
IN UINT8 SrcBarIndex,
IN UINT64 SrcOffset,
IN UINTN Count
)
{
ASSERT (FALSE);
return EFI_UNSUPPORTED;
}
EFI_STATUS
PciIoMap (
IN EFI_PCI_IO_PROTOCOL *This,
IN EFI_PCI_IO_PROTOCOL_OPERATION Operation,
IN VOID *HostAddress,
IN OUT UINTN *NumberOfBytes,
OUT EFI_PHYSICAL_ADDRESS *DeviceAddress,
OUT VOID **Mapping
)
{
DMA_MAP_OPERATION DmaOperation;
if (Operation == EfiPciIoOperationBusMasterRead) {
DmaOperation = MapOperationBusMasterRead;
} else if (Operation == EfiPciIoOperationBusMasterWrite) {
DmaOperation = MapOperationBusMasterWrite;
} else if (Operation == EfiPciIoOperationBusMasterCommonBuffer) {
DmaOperation = MapOperationBusMasterCommonBuffer;
} else {
return EFI_INVALID_PARAMETER;
}
return DmaMap (DmaOperation, HostAddress, NumberOfBytes, DeviceAddress, Mapping);
}
EFI_STATUS
PciIoUnmap (
IN EFI_PCI_IO_PROTOCOL *This,
IN VOID *Mapping
)
{
return DmaUnmap (Mapping);
}
/**
Allocate pages that are suitable for an EfiPciIoOperationBusMasterCommonBuffer
mapping.
@param[in] This A pointer to the EFI_PCI_IO_PROTOCOL instance.
@param[in] Type This parameter is not used and must be ignored.
@param[in] MemoryType The type of memory to allocate, EfiBootServicesData or
EfiRuntimeServicesData.
@param[in] Pages The number of pages to allocate.
@param[out] HostAddress A pointer to store the base system memory address of
the allocated range.
@param[in] Attributes The requested bit mask of attributes for the allocated
range. Only the attributes,
EFI_PCI_ATTRIBUTE_MEMORY_WRITE_COMBINE and
EFI_PCI_ATTRIBUTE_MEMORY_CACHED may be used with this
function. If any other bits are set, then EFI_UNSUPPORTED
is returned. This function ignores this bit mask.
@retval EFI_SUCCESS The requested memory pages were allocated.
@retval EFI_INVALID_PARAMETER HostAddress is NULL.
@retval EFI_INVALID_PARAMETER MemoryType is invalid.
@retval EFI_UNSUPPORTED Attributes is unsupported.
@retval EFI_OUT_OF_RESOURCES The memory pages could not be allocated.
**/
EFI_STATUS
PciIoAllocateBuffer (
IN EFI_PCI_IO_PROTOCOL *This,
IN EFI_ALLOCATE_TYPE Type,
IN EFI_MEMORY_TYPE MemoryType,
IN UINTN Pages,
OUT VOID **HostAddress,
IN UINT64 Attributes
)
{
if (Attributes &
(~(EFI_PCI_ATTRIBUTE_MEMORY_WRITE_COMBINE |
EFI_PCI_ATTRIBUTE_MEMORY_CACHED ))) {
return EFI_UNSUPPORTED;
}
return DmaAllocateBuffer (MemoryType, Pages, HostAddress);
}
EFI_STATUS
PciIoFreeBuffer (
IN EFI_PCI_IO_PROTOCOL *This,
IN UINTN Pages,
IN VOID *HostAddress
)
{
return DmaFreeBuffer (Pages, HostAddress);
}
EFI_STATUS
PciIoFlush (
IN EFI_PCI_IO_PROTOCOL *This
)
{
return EFI_SUCCESS;
}
/**
Retrieves this PCI controller's current PCI bus number, device number, and function number.
@param[in] This A pointer to the EFI_PCI_IO_PROTOCOL instance.
@param[out] SegmentNumber The PCI controller's current PCI segment number.
@param[out] BusNumber The PCI controller's current PCI bus number.
@param[out] DeviceNumber The PCI controller's current PCI device number.
@param[out] FunctionNumber The PCI controller’s current PCI function number.
@retval EFI_SUCCESS The PCI controller location was returned.
@retval EFI_INVALID_PARAMETER At least one out of the four output parameters is
a NULL pointer.
**/
EFI_STATUS
PciIoGetLocation (
IN EFI_PCI_IO_PROTOCOL *This,
OUT UINTN *SegmentNumber,
OUT UINTN *BusNumber,
OUT UINTN *DeviceNumber,
OUT UINTN *FunctionNumber
)
{
EFI_PCI_IO_PRIVATE_DATA *Private = EFI_PCI_IO_PRIVATE_DATA_FROM_THIS (This);
if ((SegmentNumber == NULL) || (BusNumber == NULL) ||
(DeviceNumber == NULL) || (FunctionNumber == NULL) ) {
return EFI_INVALID_PARAMETER;
}
*SegmentNumber = Private->Segment;
*BusNumber = 0xff;
*DeviceNumber = 0;
*FunctionNumber = 0;
return EFI_SUCCESS;
}
/**
Performs an operation on the attributes that this PCI controller supports.
The operations include getting the set of supported attributes, retrieving
the current attributes, setting the current attributes, enabling attributes,
and disabling attributes.
@param[in] This A pointer to the EFI_PCI_IO_PROTOCOL instance.
@param[in] Operation The operation to perform on the attributes for this
PCI controller.
@param[in] Attributes The mask of attributes that are used for Set,
Enable and Disable operations.
@param[out] Result A pointer to the result mask of attributes that are
returned for the Get and Supported operations. This
is an optional parameter that may be NULL for the
Set, Enable, and Disable operations.
@retval EFI_SUCCESS The operation on the PCI controller's
attributes was completed. If the operation
was Get or Supported, then the attribute mask
is returned in Result.
@retval EFI_INVALID_PARAMETER Operation is greater than or equal to
EfiPciIoAttributeOperationMaximum.
@retval EFI_INVALID_PARAMETER Operation is Get and Result is NULL.
@retval EFI_INVALID_PARAMETER Operation is Supported and Result is NULL.
**/
EFI_STATUS
PciIoAttributes (
IN EFI_PCI_IO_PROTOCOL *This,
IN EFI_PCI_IO_PROTOCOL_ATTRIBUTE_OPERATION Operation,
IN UINT64 Attributes,
OUT UINT64 *Result OPTIONAL
)
{
switch (Operation) {
case EfiPciIoAttributeOperationGet:
case EfiPciIoAttributeOperationSupported:
if (Result == NULL) {
return EFI_INVALID_PARAMETER;
}
//
// We are not a real PCI device so just say things we kind of do
//
*Result = EFI_PCI_DEVICE_ENABLE;
break;
case EfiPciIoAttributeOperationSet:
case EfiPciIoAttributeOperationEnable:
case EfiPciIoAttributeOperationDisable:
if (Attributes & (~EFI_PCI_DEVICE_ENABLE)) {
return EFI_UNSUPPORTED;
}
// Since we are not a real PCI device no enable/set or disable operations exist.
return EFI_SUCCESS;
default:
return EFI_INVALID_PARAMETER;
};
return EFI_SUCCESS;
}
EFI_STATUS
PciIoGetBarAttributes (
IN EFI_PCI_IO_PROTOCOL *This,
IN UINT8 BarIndex,
OUT UINT64 *Supports, OPTIONAL
OUT VOID **Resources OPTIONAL
)
{
ASSERT (FALSE);
return EFI_UNSUPPORTED;
}
EFI_STATUS
PciIoSetBarAttributes (
IN EFI_PCI_IO_PROTOCOL *This,
IN UINT64 Attributes,
IN UINT8 BarIndex,
IN OUT UINT64 *Offset,
IN OUT UINT64 *Length
)
{
ASSERT (FALSE);
return EFI_UNSUPPORTED;
}
EFI_PCI_IO_PROTOCOL PciIoTemplate =
{
PciIoPollMem,
PciIoPollIo,
{ PciIoMemRead, PciIoMemWrite },
{ PciIoIoRead, PciIoIoWrite },
{ PciIoPciRead, PciIoPciWrite },
PciIoCopyMem,
PciIoMap,
PciIoUnmap,
PciIoAllocateBuffer,
PciIoFreeBuffer,
PciIoFlush,
PciIoGetLocation,
PciIoAttributes,
PciIoGetBarAttributes,
PciIoSetBarAttributes,
0,
0
};
EFI_STATUS
EFIAPI
PciEmulationEntryPoint (
IN EFI_HANDLE ImageHandle,
IN EFI_SYSTEM_TABLE *SystemTable
)
{
EFI_STATUS Status;
EFI_HANDLE Handle;
EFI_PCI_IO_PRIVATE_DATA *Private;
UINT8 CapabilityLength;
UINT8 PhysicalPorts;
UINTN Count;
//Configure USB host for OMAP3530.
ConfigureUSBHost();
// Create a private structure
Private = AllocatePool(sizeof(EFI_PCI_IO_PRIVATE_DATA));
if (Private == NULL) {
Status = EFI_OUT_OF_RESOURCES;
return Status;
}
Private->Signature = EFI_PCI_IO_PRIVATE_DATA_SIGNATURE; // Fill in signature
Private->RootBridge.Signature = PCI_ROOT_BRIDGE_SIGNATURE; // Fake Root Bridge structure needs a signature too
Private->RootBridge.MemoryStart = USB_EHCI_HCCAPBASE; // Get the USB capability register base
Private->Segment = 0; // Default to segment zero
// Find out the capability register length and number of physical ports.
CapabilityLength = MmioRead8(Private->RootBridge.MemoryStart);
PhysicalPorts = (MmioRead32 (Private->RootBridge.MemoryStart + 0x4)) & 0x0000000F;
// Calculate the total size of the USB registers.
Private->RootBridge.MemorySize = CapabilityLength + (HOST_CONTROLLER_OPERATION_REG_SIZE + ((4 * PhysicalPorts) - 1));
// Enable Port Power bit in Port status and control registers in EHCI register space.
// Port Power Control (PPC) bit in the HCSPARAMS register is already set which indicates
// host controller implementation includes port power control.
for (Count = 0; Count < PhysicalPorts; Count++) {
MmioOr32 ((Private->RootBridge.MemoryStart + CapabilityLength + HOST_CONTROLLER_OPERATION_REG_SIZE + 4*Count), 0x00001000);
}
// Create fake PCI config space.
Private->ConfigSpace = AllocateZeroPool(sizeof(PCI_TYPE00));
if (Private->ConfigSpace == NULL) {
Status = EFI_OUT_OF_RESOURCES;
FreePool(Private);
return Status;
}
// Configure PCI config space
Private->ConfigSpace->Hdr.VendorId = 0xFFFF; // Invalid vendor Id as it is not an actual device.
Private->ConfigSpace->Hdr.DeviceId = 0x0000; // Not relevant as the vendor id is not valid.
Private->ConfigSpace->Hdr.ClassCode[0] = 0x20;
Private->ConfigSpace->Hdr.ClassCode[1] = 0x03;
Private->ConfigSpace->Hdr.ClassCode[2] = 0x0C;
Private->ConfigSpace->Device.Bar[0] = Private->RootBridge.MemoryStart;
Handle = NULL;
// Unique device path.
CopyMem(&Private->DevicePath, &PciIoDevicePathTemplate, sizeof(PciIoDevicePathTemplate));
Private->DevicePath.AcpiDevicePath.UID = 0;
// Copy protocol structure
CopyMem(&Private->PciIoProtocol, &PciIoTemplate, sizeof(PciIoTemplate));
Status = gBS->InstallMultipleProtocolInterfaces(&Handle,
&gEfiPciIoProtocolGuid, &Private->PciIoProtocol,
&gEfiDevicePathProtocolGuid, &Private->DevicePath,
NULL);
if (EFI_ERROR(Status)) {
DEBUG((EFI_D_ERROR, "PciEmulationEntryPoint InstallMultipleProtocolInterfaces() failed.\n"));
}
return Status;
}
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