diff options
Diffstat (limited to 'MdeModulePkg/Bus/Pci/UhciDxe/UhciReg.c')
| -rw-r--r-- | MdeModulePkg/Bus/Pci/UhciDxe/UhciReg.c | 281 |
1 files changed, 0 insertions, 281 deletions
diff --git a/MdeModulePkg/Bus/Pci/UhciDxe/UhciReg.c b/MdeModulePkg/Bus/Pci/UhciDxe/UhciReg.c deleted file mode 100644 index 0fd16284b3..0000000000 --- a/MdeModulePkg/Bus/Pci/UhciDxe/UhciReg.c +++ /dev/null @@ -1,281 +0,0 @@ -/** @file
-
- The UHCI register operation routines.
-
-Copyright (c) 2007, 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.
-
-**/
-
-#include "Uhci.h"
-
-
-/**
- Read a UHCI register.
-
- @param PciIo The EFI_PCI_IO_PROTOCOL to use.
- @param Offset Register offset to USB_BAR_INDEX.
-
- @return Content of register.
-
-**/
-UINT16
-UhciReadReg (
- IN EFI_PCI_IO_PROTOCOL *PciIo,
- IN UINT32 Offset
- )
-{
- UINT16 Data;
- EFI_STATUS Status;
-
- Status = PciIo->Io.Read (
- PciIo,
- EfiPciIoWidthUint16,
- USB_BAR_INDEX,
- Offset,
- 1,
- &Data
- );
-
- if (EFI_ERROR (Status)) {
- DEBUG ((EFI_D_ERROR, "UhciReadReg: PciIo Io.Read error: %r at offset %d\n", Status, Offset));
-
- Data = 0xFFFF;
- }
-
- return Data;
-}
-
-
-/**
- Write data to UHCI register.
-
- @param PciIo The EFI_PCI_IO_PROTOCOL to use.
- @param Offset Register offset to USB_BAR_INDEX.
- @param Data Data to write.
-
-**/
-VOID
-UhciWriteReg (
- IN EFI_PCI_IO_PROTOCOL *PciIo,
- IN UINT32 Offset,
- IN UINT16 Data
- )
-{
- EFI_STATUS Status;
-
- Status = PciIo->Io.Write (
- PciIo,
- EfiPciIoWidthUint16,
- USB_BAR_INDEX,
- Offset,
- 1,
- &Data
- );
-
- if (EFI_ERROR (Status)) {
- DEBUG ((EFI_D_ERROR, "UhciWriteReg: PciIo Io.Write error: %r at offset %d\n", Status, Offset));
- }
-}
-
-
-/**
- Set a bit of the UHCI Register.
-
- @param PciIo The EFI_PCI_IO_PROTOCOL to use.
- @param Offset Register offset to USB_BAR_INDEX.
- @param Bit The bit to set.
-
-**/
-VOID
-UhciSetRegBit (
- IN EFI_PCI_IO_PROTOCOL *PciIo,
- IN UINT32 Offset,
- IN UINT16 Bit
- )
-{
- UINT16 Data;
-
- Data = UhciReadReg (PciIo, Offset);
- Data = (UINT16) (Data |Bit);
- UhciWriteReg (PciIo, Offset, Data);
-}
-
-
-/**
- Clear a bit of the UHCI Register.
-
- @param PciIo The PCI_IO protocol to access the PCI.
- @param Offset Register offset to USB_BAR_INDEX.
- @param Bit The bit to clear.
-
-**/
-VOID
-UhciClearRegBit (
- IN EFI_PCI_IO_PROTOCOL *PciIo,
- IN UINT32 Offset,
- IN UINT16 Bit
- )
-{
- UINT16 Data;
-
- Data = UhciReadReg (PciIo, Offset);
- Data = (UINT16) (Data & ~Bit);
- UhciWriteReg (PciIo, Offset, Data);
-}
-
-
-/**
- Clear all the interrutp status bits, these bits
- are Write-Clean.
-
- @param Uhc The UHCI device.
-
-**/
-VOID
-UhciAckAllInterrupt (
- IN USB_HC_DEV *Uhc
- )
-{
- UhciWriteReg (Uhc->PciIo, USBSTS_OFFSET, 0x3F);
-
- //
- // If current HC is halted, re-enable it. Host Controller Process Error
- // is a temporary error status.
- //
- if (!UhciIsHcWorking (Uhc->PciIo)) {
- DEBUG ((EFI_D_ERROR, "UhciAckAllInterrupt: re-enable the UHCI from system error\n"));
- Uhc->Usb2Hc.SetState (&Uhc->Usb2Hc, EfiUsbHcStateOperational);
- }
-}
-
-
-/**
- Stop the host controller.
-
- @param Uhc The UHCI device.
- @param Timeout Max time allowed.
-
- @retval EFI_SUCCESS The host controller is stopped.
- @retval EFI_TIMEOUT Failed to stop the host controller.
-
-**/
-EFI_STATUS
-UhciStopHc (
- IN USB_HC_DEV *Uhc,
- IN UINTN Timeout
- )
-{
- UINT16 UsbSts;
- UINTN Index;
-
- UhciClearRegBit (Uhc->PciIo, USBCMD_OFFSET, USBCMD_RS);
-
- //
- // ensure the HC is in halt status after send the stop command
- // Timeout is in us unit.
- //
- for (Index = 0; Index < (Timeout / 50) + 1; Index++) {
- UsbSts = UhciReadReg (Uhc->PciIo, USBSTS_OFFSET);
-
- if ((UsbSts & USBSTS_HCH) == USBSTS_HCH) {
- return EFI_SUCCESS;
- }
-
- gBS->Stall (50);
- }
-
- return EFI_TIMEOUT;
-}
-
-
-/**
- Check whether the host controller operates well.
-
- @param PciIo The PCI_IO protocol to use.
-
- @retval TRUE Host controller is working.
- @retval FALSE Host controller is halted or system error.
-
-**/
-BOOLEAN
-UhciIsHcWorking (
- IN EFI_PCI_IO_PROTOCOL *PciIo
- )
-{
- UINT16 UsbSts;
-
- UsbSts = UhciReadReg (PciIo, USBSTS_OFFSET);
-
- if ((UsbSts & (USBSTS_HCPE | USBSTS_HSE | USBSTS_HCH)) != 0) {
- DEBUG ((EFI_D_ERROR, "UhciIsHcWorking: current USB state is %x\n", UsbSts));
- return FALSE;
- }
-
- return TRUE;
-}
-
-
-/**
- Set the UHCI frame list base address. It can't use
- UhciWriteReg which access memory in UINT16.
-
- @param PciIo The EFI_PCI_IO_PROTOCOL to use.
- @param Addr Address to set.
-
-**/
-VOID
-UhciSetFrameListBaseAddr (
- IN EFI_PCI_IO_PROTOCOL *PciIo,
- IN VOID *Addr
- )
-{
- EFI_STATUS Status;
- UINT32 Data;
-
- Data = (UINT32) ((UINTN) Addr & 0xFFFFF000);
-
- Status = PciIo->Io.Write (
- PciIo,
- EfiPciIoWidthUint32,
- USB_BAR_INDEX,
- (UINT64) USB_FRAME_BASE_OFFSET,
- 1,
- &Data
- );
-
- if (EFI_ERROR (Status)) {
- DEBUG ((EFI_D_ERROR, "UhciSetFrameListBaseAddr: PciIo Io.Write error: %r\n", Status));
- }
-}
-
-
-/**
- Disable USB Emulation.
-
- @param PciIo The EFI_PCI_IO_PROTOCOL protocol to use.
-
-**/
-VOID
-UhciTurnOffUsbEmulation (
- IN EFI_PCI_IO_PROTOCOL *PciIo
- )
-{
- UINT16 Command;
-
- Command = 0;
-
- PciIo->Pci.Write (
- PciIo,
- EfiPciIoWidthUint16,
- USB_EMULATION_OFFSET,
- 1,
- &Command
- );
-}
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