diff options
Diffstat (limited to 'Core/PcAtChipsetPkg/Bus/Pci/IdeControllerDxe/IdeController.c')
| -rw-r--r-- | Core/PcAtChipsetPkg/Bus/Pci/IdeControllerDxe/IdeController.c | 619 |
1 files changed, 619 insertions, 0 deletions
diff --git a/Core/PcAtChipsetPkg/Bus/Pci/IdeControllerDxe/IdeController.c b/Core/PcAtChipsetPkg/Bus/Pci/IdeControllerDxe/IdeController.c new file mode 100644 index 0000000000..21b8e26297 --- /dev/null +++ b/Core/PcAtChipsetPkg/Bus/Pci/IdeControllerDxe/IdeController.c @@ -0,0 +1,619 @@ +/** @file
+ This driver module produces IDE_CONTROLLER_INIT protocol and will be used by
+ IDE Bus driver to support platform dependent timing information. This driver
+ is responsible for early initialization of IDE controller.
+
+ Copyright (c) 2008 - 2011, 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 "IdeController.h"
+
+///
+/// EFI_DRIVER_BINDING_PROTOCOL instance
+///
+EFI_DRIVER_BINDING_PROTOCOL gIdeControllerDriverBinding = {
+ IdeControllerSupported,
+ IdeControllerStart,
+ IdeControllerStop,
+ 0xa,
+ NULL,
+ NULL
+};
+
+///
+/// EFI_IDE_CONTROLLER_PROVATE_DATA Template
+///
+EFI_IDE_CONTROLLER_INIT_PROTOCOL gEfiIdeControllerInit = {
+ IdeInitGetChannelInfo,
+ IdeInitNotifyPhase,
+ IdeInitSubmitData,
+ IdeInitDisqualifyMode,
+ IdeInitCalculateMode,
+ IdeInitSetTiming,
+ ICH_IDE_ENUMER_ALL,
+ ICH_IDE_MAX_CHANNEL
+};
+
+///
+/// EFI_ATA_COLLECTIVE_MODE Template
+///
+EFI_ATA_COLLECTIVE_MODE gEfiAtaCollectiveModeTemplate = {
+ {
+ TRUE, ///< PioMode.Valid
+ 0 ///< PioMode.Mode
+ },
+ {
+ TRUE, ///< SingleWordDmaMode.Valid
+ 0
+ },
+ {
+ FALSE, ///< MultiWordDmaMode.Valid
+ 0
+ },
+ {
+ TRUE, ///< UdmaMode.Valid
+ 0 ///< UdmaMode.Mode
+ }
+};
+
+/**
+ Chipset Ide Driver EntryPoint function. It follows the standard EFI driver model.
+ It's called by StartImage() of DXE Core.
+
+ @param ImageHandle While the driver image loaded be the ImageLoader(),
+ an image handle is assigned to this driver binary,
+ all activities of the driver is tied to this ImageHandle
+ @param SystemTable A pointer to the system table, for all BS(Boo Services) and
+ RT(Runtime Services)
+
+ @return EFI_STATUS Status of EfiLibInstallDriverBindingComponentName2().
+**/
+EFI_STATUS
+EFIAPI
+InitializeIdeControllerDriver (
+ IN EFI_HANDLE ImageHandle,
+ IN EFI_SYSTEM_TABLE *SystemTable
+ )
+{
+ EFI_STATUS Status;
+
+ //
+ // Install driver model protocol(s).
+ //
+ Status = EfiLibInstallDriverBindingComponentName2 (
+ ImageHandle,
+ SystemTable,
+ &gIdeControllerDriverBinding,
+ ImageHandle,
+ &gIdeControllerComponentName,
+ &gIdeControllerComponentName2
+ );
+ ASSERT_EFI_ERROR (Status);
+
+ return Status;
+}
+
+/**
+ Register Driver Binding protocol for this driver.
+
+ @param This A pointer points to the Binding Protocol instance
+ @param Controller The handle of controller to be tested.
+ @param RemainingDevicePath A pointer to the device path. Ignored by device
+ driver but used by bus driver
+
+ @retval EFI_SUCCESS Driver loaded.
+ @retval !EFI_SUCESS Driver not loaded.
+**/
+EFI_STATUS
+EFIAPI
+IdeControllerSupported (
+ IN EFI_DRIVER_BINDING_PROTOCOL *This,
+ IN EFI_HANDLE Controller,
+ IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath
+ )
+{
+ EFI_STATUS Status;
+ EFI_PCI_IO_PROTOCOL *PciIo;
+ UINT8 PciClass;
+ UINT8 PciSubClass;
+
+ //
+ // Attempt to Open PCI I/O Protocol
+ //
+ Status = gBS->OpenProtocol (
+ Controller,
+ &gEfiPciIoProtocolGuid,
+ (VOID **) &PciIo,
+ This->DriverBindingHandle,
+ Controller,
+ EFI_OPEN_PROTOCOL_BY_DRIVER
+ );
+ if (EFI_ERROR (Status)) {
+ return Status;
+ }
+
+ //
+ // Now further check the PCI header: Base class (offset 0x0B) and
+ // Sub Class (offset 0x0A). This controller should be an Ide controller
+ //
+ Status = PciIo->Pci.Read (
+ PciIo,
+ EfiPciIoWidthUint8,
+ PCI_CLASSCODE_OFFSET + 2,
+ 1,
+ &PciClass
+ );
+ if (EFI_ERROR (Status)) {
+ goto Done;
+ }
+
+ Status = PciIo->Pci.Read (
+ PciIo,
+ EfiPciIoWidthUint8,
+ PCI_CLASSCODE_OFFSET + 1,
+ 1,
+ &PciSubClass
+ );
+ if (EFI_ERROR (Status)) {
+ goto Done;
+ }
+
+ //
+ // Examine Ide PCI Configuration table fields
+ //
+ if ((PciClass != PCI_CLASS_MASS_STORAGE) || (PciSubClass != PCI_CLASS_MASS_STORAGE_IDE)) {
+ Status = EFI_UNSUPPORTED;
+ }
+
+Done:
+ gBS->CloseProtocol (
+ Controller,
+ &gEfiPciIoProtocolGuid,
+ This->DriverBindingHandle,
+ Controller
+ );
+
+ return Status;
+}
+
+/**
+ This routine is called right after the .Supported() called and return
+ EFI_SUCCESS. Notes: The supported protocols are checked but the Protocols
+ are closed.
+
+ @param This A pointer points to the Binding Protocol instance
+ @param Controller The handle of controller to be tested. Parameter
+ passed by the caller
+ @param RemainingDevicePath A pointer to the device path. Should be ignored by
+ device driver
+
+ @return EFI_STATUS Status of InstallMultipleProtocolInterfaces()
+**/
+EFI_STATUS
+EFIAPI
+IdeControllerStart (
+ IN EFI_DRIVER_BINDING_PROTOCOL *This,
+ IN EFI_HANDLE Controller,
+ IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath
+ )
+{
+ EFI_STATUS Status;
+ EFI_PCI_IO_PROTOCOL *PciIo;
+
+ //
+ // Now test and open the EfiPciIoProtocol
+ //
+ Status = gBS->OpenProtocol (
+ Controller,
+ &gEfiPciIoProtocolGuid,
+ (VOID **) &PciIo,
+ This->DriverBindingHandle,
+ Controller,
+ EFI_OPEN_PROTOCOL_BY_DRIVER
+ );
+ //
+ // Status == EFI_SUCCESS - A normal execution flow, SUCCESS and the program proceeds.
+ // Status == ALREADY_STARTED - A non-zero Status code returned. It indicates
+ // that the protocol has been opened and should be treated as a
+ // normal condition and the program proceeds. The Protocol will not
+ // opened 'again' by this call.
+ // Status != ALREADY_STARTED - Error status, terminate program execution
+ //
+ if (EFI_ERROR (Status)) {
+ return Status;
+ }
+
+ //
+ // Install IDE_CONTROLLER_INIT protocol
+ //
+ return gBS->InstallMultipleProtocolInterfaces (
+ &Controller,
+ &gEfiIdeControllerInitProtocolGuid, &gEfiIdeControllerInit,
+ NULL
+ );
+}
+
+/**
+ Stop this driver on Controller Handle.
+
+ @param This Protocol instance pointer.
+ @param Controller Handle of device to stop driver on
+ @param NumberOfChildren Not used
+ @param ChildHandleBuffer Not used
+
+ @retval EFI_SUCESS This driver is removed DeviceHandle
+ @retval !EFI_SUCCESS This driver was not removed from this device
+**/
+EFI_STATUS
+EFIAPI
+IdeControllerStop (
+ IN EFI_DRIVER_BINDING_PROTOCOL *This,
+ IN EFI_HANDLE Controller,
+ IN UINTN NumberOfChildren,
+ IN EFI_HANDLE *ChildHandleBuffer
+ )
+{
+ EFI_STATUS Status;
+ EFI_IDE_CONTROLLER_INIT_PROTOCOL *IdeControllerInit;
+
+ //
+ // Open the produced protocol
+ //
+ Status = gBS->OpenProtocol (
+ Controller,
+ &gEfiIdeControllerInitProtocolGuid,
+ (VOID **) &IdeControllerInit,
+ This->DriverBindingHandle,
+ Controller,
+ EFI_OPEN_PROTOCOL_GET_PROTOCOL
+ );
+ if (EFI_ERROR (Status)) {
+ return EFI_UNSUPPORTED;
+ }
+
+ //
+ // Make sure the protocol was produced by this driver
+ //
+ if (IdeControllerInit != &gEfiIdeControllerInit) {
+ return EFI_UNSUPPORTED;
+ }
+
+ //
+ // Uninstall the IDE Controller Init Protocol
+ //
+ Status = gBS->UninstallMultipleProtocolInterfaces (
+ Controller,
+ &gEfiIdeControllerInitProtocolGuid, &gEfiIdeControllerInit,
+ NULL
+ );
+ if (EFI_ERROR (Status)) {
+ return Status;
+ }
+
+ //
+ // Close protocols opened by Ide controller driver
+ //
+ return gBS->CloseProtocol (
+ Controller,
+ &gEfiPciIoProtocolGuid,
+ This->DriverBindingHandle,
+ Controller
+ );
+}
+
+//
+// Interface functions of IDE_CONTROLLER_INIT protocol
+//
+/**
+ Returns the information about the specified IDE channel.
+
+ This function can be used to obtain information about a particular IDE channel.
+ The driver entity uses this information during the enumeration process.
+
+ If Enabled is set to FALSE, the driver entity will not scan the channel. Note
+ that it will not prevent an operating system driver from scanning the channel.
+
+ For most of today's controllers, MaxDevices will either be 1 or 2. For SATA
+ controllers, this value will always be 1. SATA configurations can contain SATA
+ port multipliers. SATA port multipliers behave like SATA bridges and can support
+ up to 16 devices on the other side. If a SATA port out of the IDE controller
+ is connected to a port multiplier, MaxDevices will be set to the number of SATA
+ devices that the port multiplier supports. Because today's port multipliers
+ support up to fifteen SATA devices, this number can be as large as fifteen. The IDE
+ bus driver is required to scan for the presence of port multipliers behind an SATA
+ controller and enumerate up to MaxDevices number of devices behind the port
+ multiplier.
+
+ In this context, the devices behind a port multiplier constitute a channel.
+
+ @param[in] This The pointer to the EFI_IDE_CONTROLLER_INIT_PROTOCOL instance.
+ @param[in] Channel Zero-based channel number.
+ @param[out] Enabled TRUE if this channel is enabled. Disabled channels
+ are not scanned to see if any devices are present.
+ @param[out] MaxDevices The maximum number of IDE devices that the bus driver
+ can expect on this channel. For the ATA/ATAPI
+ specification, version 6, this number will either be
+ one or two. For Serial ATA (SATA) configurations with a
+ port multiplier, this number can be as large as fifteen.
+
+ @retval EFI_SUCCESS Information was returned without any errors.
+ @retval EFI_INVALID_PARAMETER Channel is invalid (Channel >= ChannelCount).
+
+**/
+EFI_STATUS
+EFIAPI
+IdeInitGetChannelInfo (
+ IN EFI_IDE_CONTROLLER_INIT_PROTOCOL *This,
+ IN UINT8 Channel,
+ OUT BOOLEAN *Enabled,
+ OUT UINT8 *MaxDevices
+ )
+{
+ //
+ // Channel number (0 based, either 0 or 1)
+ //
+ if (Channel < ICH_IDE_MAX_CHANNEL) {
+ *Enabled = TRUE;
+ *MaxDevices = ICH_IDE_MAX_DEVICES;
+ return EFI_SUCCESS;
+ }
+
+ *Enabled = FALSE;
+ return EFI_INVALID_PARAMETER;
+}
+
+/**
+ The notifications from the driver entity that it is about to enter a certain
+ phase of the IDE channel enumeration process.
+
+ This function can be used to notify the IDE controller driver to perform
+ specific actions, including any chipset-specific initialization, so that the
+ chipset is ready to enter the next phase. Seven notification points are defined
+ at this time.
+
+ More synchronization points may be added as required in the future.
+
+ @param[in] This The pointer to the EFI_IDE_CONTROLLER_INIT_PROTOCOL instance.
+ @param[in] Phase The phase during enumeration.
+ @param[in] Channel Zero-based channel number.
+
+ @retval EFI_SUCCESS The notification was accepted without any errors.
+ @retval EFI_UNSUPPORTED Phase is not supported.
+ @retval EFI_INVALID_PARAMETER Channel is invalid (Channel >= ChannelCount).
+ @retval EFI_NOT_READY This phase cannot be entered at this time; for
+ example, an attempt was made to enter a Phase
+ without having entered one or more previous
+ Phase.
+
+**/
+EFI_STATUS
+EFIAPI
+IdeInitNotifyPhase (
+ IN EFI_IDE_CONTROLLER_INIT_PROTOCOL *This,
+ IN EFI_IDE_CONTROLLER_ENUM_PHASE Phase,
+ IN UINT8 Channel
+ )
+{
+ return EFI_SUCCESS;
+}
+
+/**
+ Submits the device information to the IDE controller driver.
+
+ This function is used by the driver entity to pass detailed information about
+ a particular device to the IDE controller driver. The driver entity obtains
+ this information by issuing an ATA or ATAPI IDENTIFY_DEVICE command. IdentifyData
+ is the pointer to the response data buffer. The IdentifyData buffer is owned
+ by the driver entity, and the IDE controller driver must make a local copy
+ of the entire buffer or parts of the buffer as needed. The original IdentifyData
+ buffer pointer may not be valid when
+
+ - EFI_IDE_CONTROLLER_INIT_PROTOCOL.CalculateMode() or
+ - EFI_IDE_CONTROLLER_INIT_PROTOCOL.DisqualifyMode() is called at a later point.
+
+ The IDE controller driver may consult various fields of EFI_IDENTIFY_DATA to
+ compute the optimum mode for the device. These fields are not limited to the
+ timing information. For example, an implementation of the IDE controller driver
+ may examine the vendor and type/mode field to match known bad drives.
+
+ The driver entity may submit drive information in any order, as long as it
+ submits information for all the devices belonging to the enumeration group
+ before EFI_IDE_CONTROLLER_INIT_PROTOCOL.CalculateMode() is called for any device
+ in that enumeration group. If a device is absent, EFI_IDE_CONTROLLER_INIT_PROTOCOL.SubmitData()
+ should be called with IdentifyData set to NULL. The IDE controller driver may
+ not have any other mechanism to know whether a device is present or not. Therefore,
+ setting IdentifyData to NULL does not constitute an error condition.
+ EFI_IDE_CONTROLLER_INIT_PROTOCOL.SubmitData() can be called only once for a
+ given (Channel, Device) pair.
+
+ @param[in] This A pointer to the EFI_IDE_CONTROLLER_INIT_PROTOCOL instance.
+ @param[in] Channel Zero-based channel number.
+ @param[in] Device Zero-based device number on the Channel.
+ @param[in] IdentifyData The device's response to the ATA IDENTIFY_DEVICE command.
+
+ @retval EFI_SUCCESS The information was accepted without any errors.
+ @retval EFI_INVALID_PARAMETER Channel is invalid (Channel >= ChannelCount).
+ @retval EFI_INVALID_PARAMETER Device is invalid.
+
+**/
+EFI_STATUS
+EFIAPI
+IdeInitSubmitData (
+ IN EFI_IDE_CONTROLLER_INIT_PROTOCOL *This,
+ IN UINT8 Channel,
+ IN UINT8 Device,
+ IN EFI_IDENTIFY_DATA *IdentifyData
+ )
+{
+ return EFI_SUCCESS;
+}
+
+/**
+ Disqualifies specific modes for an IDE device.
+
+ This function allows the driver entity or other drivers (such as platform
+ drivers) to reject certain timing modes and request the IDE controller driver
+ to recalculate modes. This function allows the driver entity and the IDE
+ controller driver to negotiate the timings on a per-device basis. This function
+ is useful in the case of drives that lie about their capabilities. An example
+ is when the IDE device fails to accept the timing modes that are calculated
+ by the IDE controller driver based on the response to the Identify Drive command.
+
+ If the driver entity does not want to limit the ATA timing modes and leave that
+ decision to the IDE controller driver, it can either not call this function for
+ the given device or call this function and set the Valid flag to FALSE for all
+ modes that are listed in EFI_ATA_COLLECTIVE_MODE.
+
+ The driver entity may disqualify modes for a device in any order and any number
+ of times.
+
+ This function can be called multiple times to invalidate multiple modes of the
+ same type (e.g., Programmed Input/Output [PIO] modes 3 and 4). See the ATA/ATAPI
+ specification for more information on PIO modes.
+
+ For Serial ATA (SATA) controllers, this member function can be used to disqualify
+ a higher transfer rate mode on a given channel. For example, a platform driver
+ may inform the IDE controller driver to not use second-generation (Gen2) speeds
+ for a certain SATA drive.
+
+ @param[in] This The pointer to the EFI_IDE_CONTROLLER_INIT_PROTOCOL instance.
+ @param[in] Channel The zero-based channel number.
+ @param[in] Device The zero-based device number on the Channel.
+ @param[in] BadModes The modes that the device does not support and that
+ should be disqualified.
+
+ @retval EFI_SUCCESS The modes were accepted without any errors.
+ @retval EFI_INVALID_PARAMETER Channel is invalid (Channel >= ChannelCount).
+ @retval EFI_INVALID_PARAMETER Device is invalid.
+ @retval EFI_INVALID_PARAMETER IdentifyData is NULL.
+
+**/
+EFI_STATUS
+EFIAPI
+IdeInitDisqualifyMode (
+ IN EFI_IDE_CONTROLLER_INIT_PROTOCOL *This,
+ IN UINT8 Channel,
+ IN UINT8 Device,
+ IN EFI_ATA_COLLECTIVE_MODE *BadModes
+ )
+{
+ return EFI_SUCCESS;
+}
+
+/**
+ Returns the information about the optimum modes for the specified IDE device.
+
+ This function is used by the driver entity to obtain the optimum ATA modes for
+ a specific device. The IDE controller driver takes into account the following
+ while calculating the mode:
+ - The IdentifyData inputs to EFI_IDE_CONTROLLER_INIT_PROTOCOL.SubmitData()
+ - The BadModes inputs to EFI_IDE_CONTROLLER_INIT_PROTOCOL.DisqualifyMode()
+
+ The driver entity is required to call EFI_IDE_CONTROLLER_INIT_PROTOCOL.SubmitData()
+ for all the devices that belong to an enumeration group before calling
+ EFI_IDE_CONTROLLER_INIT_PROTOCOL.CalculateMode() for any device in the same group.
+
+ The IDE controller driver will use controller- and possibly platform-specific
+ algorithms to arrive at SupportedModes. The IDE controller may base its
+ decision on user preferences and other considerations as well. This function
+ may be called multiple times because the driver entity may renegotiate the mode
+ with the IDE controller driver using EFI_IDE_CONTROLLER_INIT_PROTOCOL.DisqualifyMode().
+
+ The driver entity may collect timing information for various devices in any
+ order. The driver entity is responsible for making sure that all the dependencies
+ are satisfied. For example, the SupportedModes information for device A that
+ was previously returned may become stale after a call to
+ EFI_IDE_CONTROLLER_INIT_PROTOCOL.DisqualifyMode() for device B.
+
+ The buffer SupportedModes is allocated by the callee because the caller does
+ not necessarily know the size of the buffer. The type EFI_ATA_COLLECTIVE_MODE
+ is defined in a way that allows for future extensibility and can be of variable
+ length. This memory pool should be deallocated by the caller when it is no
+ longer necessary.
+
+ The IDE controller driver for a Serial ATA (SATA) controller can use this
+ member function to force a lower speed (first-generation [Gen1] speeds on a
+ second-generation [Gen2]-capable hardware). The IDE controller driver can
+ also allow the driver entity to stay with the speed that has been negotiated
+ by the physical layer.
+
+ @param[in] This The pointer to the EFI_IDE_CONTROLLER_INIT_PROTOCOL instance.
+ @param[in] Channel A zero-based channel number.
+ @param[in] Device A zero-based device number on the Channel.
+ @param[out] SupportedModes The optimum modes for the device.
+
+ @retval EFI_SUCCESS SupportedModes was returned.
+ @retval EFI_INVALID_PARAMETER Channel is invalid (Channel >= ChannelCount).
+ @retval EFI_INVALID_PARAMETER Device is invalid.
+ @retval EFI_INVALID_PARAMETER SupportedModes is NULL.
+ @retval EFI_NOT_READY Modes cannot be calculated due to a lack of
+ data. This error may happen if
+ EFI_IDE_CONTROLLER_INIT_PROTOCOL.SubmitData()
+ and EFI_IDE_CONTROLLER_INIT_PROTOCOL.DisqualifyData()
+ were not called for at least one drive in the
+ same enumeration group.
+
+**/
+EFI_STATUS
+EFIAPI
+IdeInitCalculateMode (
+ IN EFI_IDE_CONTROLLER_INIT_PROTOCOL *This,
+ IN UINT8 Channel,
+ IN UINT8 Device,
+ OUT EFI_ATA_COLLECTIVE_MODE **SupportedModes
+ )
+{
+ if (Channel >= ICH_IDE_MAX_CHANNEL || Device >= ICH_IDE_MAX_DEVICES) {
+ return EFI_INVALID_PARAMETER;
+ }
+
+ *SupportedModes = AllocateCopyPool (sizeof (EFI_ATA_COLLECTIVE_MODE), &gEfiAtaCollectiveModeTemplate);
+ if (*SupportedModes == NULL) {
+ return EFI_OUT_OF_RESOURCES;
+ }
+
+ return EFI_SUCCESS;
+}
+
+/**
+ Commands the IDE controller driver to program the IDE controller hardware
+ so that the specified device can operate at the specified mode.
+
+ This function is used by the driver entity to instruct the IDE controller
+ driver to program the IDE controller hardware to the specified modes. This
+ function can be called only once for a particular device. For a Serial ATA
+ (SATA) Advanced Host Controller Interface (AHCI) controller, no controller-
+ specific programming may be required.
+
+ @param[in] This Pointer to the EFI_IDE_CONTROLLER_INIT_PROTOCOL instance.
+ @param[in] Channel Zero-based channel number.
+ @param[in] Device Zero-based device number on the Channel.
+ @param[in] Modes The modes to set.
+
+ @retval EFI_SUCCESS The command was accepted without any errors.
+ @retval EFI_INVALID_PARAMETER Channel is invalid (Channel >= ChannelCount).
+ @retval EFI_INVALID_PARAMETER Device is invalid.
+ @retval EFI_NOT_READY Modes cannot be set at this time due to lack of data.
+ @retval EFI_DEVICE_ERROR Modes cannot be set due to hardware failure.
+ The driver entity should not use this device.
+
+**/
+EFI_STATUS
+EFIAPI
+IdeInitSetTiming (
+ IN EFI_IDE_CONTROLLER_INIT_PROTOCOL *This,
+ IN UINT8 Channel,
+ IN UINT8 Device,
+ IN EFI_ATA_COLLECTIVE_MODE *Modes
+ )
+{
+ return EFI_SUCCESS;
+}
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