| /** @file | |
| Header file for Sata Controller driver. | |
| Copyright (c) 2011 - 2018, Intel Corporation. All rights reserved.<BR> | |
| Copyright (c) 2018, ARM Ltd. All rights reserved.<BR> | |
| SPDX-License-Identifier: BSD-2-Clause-Patent | |
| **/ | |
| #ifndef _SATA_CONTROLLER_H_ | |
| #define _SATA_CONTROLLER_H_ | |
| #include <Uefi.h> | |
| #include <IndustryStandard/Pci.h> | |
| #include <Protocol/ComponentName.h> | |
| #include <Protocol/DriverBinding.h> | |
| #include <Protocol/PciIo.h> | |
| #include <Protocol/IdeControllerInit.h> | |
| #include <Library/BaseLib.h> | |
| #include <Library/BaseMemoryLib.h> | |
| #include <Library/DebugLib.h> | |
| #include <Library/UefiLib.h> | |
| #include <Library/UefiDriverEntryPoint.h> | |
| #include <Library/MemoryAllocationLib.h> | |
| #include <Library/UefiBootServicesTableLib.h> | |
| // | |
| // Global Variables definitions | |
| // | |
| extern EFI_DRIVER_BINDING_PROTOCOL gSataControllerDriverBinding; | |
| extern EFI_COMPONENT_NAME_PROTOCOL gSataControllerComponentName; | |
| extern EFI_COMPONENT_NAME2_PROTOCOL gSataControllerComponentName2; | |
| #define AHCI_BAR_INDEX 0x05 | |
| #define R_AHCI_CAP 0x0 | |
| #define B_AHCI_CAP_NPS (BIT4 | BIT3 | BIT2 | BIT1 | BIT0) // Number of Ports | |
| #define B_AHCI_CAP_SPM BIT17 // Supports Port Multiplier | |
| #define R_AHCI_PI 0xC | |
| /// | |
| /// AHCI each channel can have up to 1 device | |
| /// | |
| #define AHCI_MAX_DEVICES 0x01 | |
| /// | |
| /// AHCI each channel can have 15 devices in the presence of a multiplier | |
| /// | |
| #define AHCI_MULTI_MAX_DEVICES 0x0F | |
| /// | |
| /// IDE supports 2 channel max | |
| /// | |
| #define IDE_MAX_CHANNEL 0x02 | |
| /// | |
| /// IDE supports 2 devices max | |
| /// | |
| #define IDE_MAX_DEVICES 0x02 | |
| #define SATA_ENUMER_ALL FALSE | |
| // | |
| // Sata Controller driver private data structure | |
| // | |
| #define SATA_CONTROLLER_SIGNATURE SIGNATURE_32('S','A','T','A') | |
| typedef struct _EFI_SATA_CONTROLLER_PRIVATE_DATA { | |
| // | |
| // Standard signature used to identify Sata Controller private data | |
| // | |
| UINT32 Signature; | |
| // | |
| // Protocol instance of IDE_CONTROLLER_INIT produced by this driver | |
| // | |
| EFI_IDE_CONTROLLER_INIT_PROTOCOL IdeInit; | |
| // | |
| // Copy of protocol pointers used by this driver | |
| // | |
| EFI_PCI_IO_PROTOCOL *PciIo; | |
| // | |
| // The number of devices that are supported by this channel | |
| // | |
| UINT8 DeviceCount; | |
| // | |
| // The highest disqulified mode for each attached device, | |
| // From ATA/ATAPI spec, if a mode is not supported, | |
| // the modes higher than it is also not supported | |
| // | |
| EFI_ATA_COLLECTIVE_MODE *DisqualifiedModes; | |
| // | |
| // A copy of EFI_IDENTIFY_DATA data for each attached SATA device and its flag | |
| // | |
| EFI_IDENTIFY_DATA *IdentifyData; | |
| BOOLEAN *IdentifyValid; | |
| // | |
| // Track the state so that the PCI attributes that were modified | |
| // can be restored to the original value later. | |
| // | |
| BOOLEAN PciAttributesChanged; | |
| // | |
| // Copy of the original PCI Attributes | |
| // | |
| UINT64 OriginalPciAttributes; | |
| } EFI_SATA_CONTROLLER_PRIVATE_DATA; | |
| #define SATA_CONTROLLER_PRIVATE_DATA_FROM_THIS(a) CR(a, EFI_SATA_CONTROLLER_PRIVATE_DATA, IdeInit, SATA_CONTROLLER_SIGNATURE) | |
| // | |
| // Driver binding functions declaration | |
| // | |
| /** | |
| Supported function of Driver Binding protocol for this driver. | |
| Test to see if this driver supports ControllerHandle. | |
| @param This Protocol instance pointer. | |
| @param Controller Handle of device to test. | |
| @param RemainingDevicePath A pointer to the device path. Should be ignored by | |
| device driver. | |
| @retval EFI_SUCCESS This driver supports this device. | |
| @retval EFI_ALREADY_STARTED This driver is already running on this device. | |
| @retval other This driver does not support this device. | |
| **/ | |
| EFI_STATUS | |
| EFIAPI | |
| SataControllerSupported ( | |
| IN EFI_DRIVER_BINDING_PROTOCOL *This, | |
| IN EFI_HANDLE Controller, | |
| IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath | |
| ); | |
| /** | |
| This routine is called right after the .Supported() called and | |
| Start this driver on ControllerHandle. | |
| @param This Protocol instance pointer. | |
| @param Controller Handle of device to bind driver to. | |
| @param RemainingDevicePath A pointer to the device path. Should be ignored by | |
| device driver. | |
| @retval EFI_SUCCESS This driver is added to this device. | |
| @retval EFI_ALREADY_STARTED This driver is already running on this device. | |
| @retval other Some error occurs when binding this driver to this device. | |
| **/ | |
| EFI_STATUS | |
| EFIAPI | |
| SataControllerStart ( | |
| IN EFI_DRIVER_BINDING_PROTOCOL *This, | |
| IN EFI_HANDLE Controller, | |
| IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath | |
| ); | |
| /** | |
| Stop this driver on ControllerHandle. | |
| @param This A pointer to the EFI_DRIVER_BINDING_PROTOCOL instance. | |
| @param Controller A handle to the device being stopped. | |
| @param NumberOfChildren The number of child device handles in ChildHandleBuffer. | |
| @param ChildHandleBuffer An array of child handles to be freed. | |
| @retval EFI_SUCCESS This driver is removed from this device. | |
| @retval other Some error occurs when removing this driver from this device. | |
| **/ | |
| EFI_STATUS | |
| EFIAPI | |
| SataControllerStop ( | |
| IN EFI_DRIVER_BINDING_PROTOCOL *This, | |
| IN EFI_HANDLE Controller, | |
| IN UINTN NumberOfChildren, | |
| IN EFI_HANDLE *ChildHandleBuffer | |
| ); | |
| // | |
| // IDE controller init functions declaration | |
| // | |
| /** | |
| 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 | |
| ); | |
| /** | |
| 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 | |
| ); | |
| /** | |
| 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 | |
| ); | |
| /** | |
| 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 | |
| ); | |
| /** | |
| 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 | |
| ); | |
| /** | |
| 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 | |
| ); | |
| // | |
| // Forward reference declaration | |
| // | |
| /** | |
| Retrieves a Unicode string that is the user readable name of the UEFI Driver. | |
| @param This A pointer to the EFI_COMPONENT_NAME_PROTOCOL instance. | |
| @param Language A pointer to a three character ISO 639-2 language identifier. | |
| This is the language of the driver name that that the caller | |
| is requesting, and it must match one of the languages specified | |
| in SupportedLanguages. The number of languages supported by a | |
| driver is up to the driver writer. | |
| @param DriverName A pointer to the Unicode string to return. This Unicode string | |
| is the name of the driver specified by This in the language | |
| specified by Language. | |
| @retval EFI_SUCCESS The Unicode string for the Driver specified by This | |
| and the language specified by Language was returned | |
| in DriverName. | |
| @retval EFI_INVALID_PARAMETER Language is NULL. | |
| @retval EFI_INVALID_PARAMETER DriverName is NULL. | |
| @retval EFI_UNSUPPORTED The driver specified by This does not support the | |
| language specified by Language. | |
| **/ | |
| EFI_STATUS | |
| EFIAPI | |
| SataControllerComponentNameGetDriverName ( | |
| IN EFI_COMPONENT_NAME_PROTOCOL *This, | |
| IN CHAR8 *Language, | |
| OUT CHAR16 **DriverName | |
| ); | |
| /** | |
| Retrieves a Unicode string that is the user readable name of the controller | |
| that is being managed by an UEFI Driver. | |
| @param This A pointer to the EFI_COMPONENT_NAME_PROTOCOL instance. | |
| @param ControllerHandle The handle of a controller that the driver specified by | |
| This is managing. This handle specifies the controller | |
| whose name is to be returned. | |
| @param OPTIONAL ChildHandle The handle of the child controller to retrieve the name | |
| of. This is an optional parameter that may be NULL. It | |
| will be NULL for device drivers. It will also be NULL | |
| for a bus drivers that wish to retrieve the name of the | |
| bus controller. It will not be NULL for a bus driver | |
| that wishes to retrieve the name of a child controller. | |
| @param Language A pointer to a three character ISO 639-2 language | |
| identifier. This is the language of the controller name | |
| that that the caller is requesting, and it must match one | |
| of the languages specified in SupportedLanguages. The | |
| number of languages supported by a driver is up to the | |
| driver writer. | |
| @param ControllerName A pointer to the Unicode string to return. This Unicode | |
| string is the name of the controller specified by | |
| ControllerHandle and ChildHandle in the language | |
| specified by Language from the point of view of the | |
| driver specified by This. | |
| @retval EFI_SUCCESS The Unicode string for the user readable name in the | |
| language specified by Language for the driver | |
| specified by This was returned in DriverName. | |
| @retval EFI_INVALID_PARAMETER ControllerHandle is not a valid EFI_HANDLE. | |
| @retval EFI_INVALID_PARAMETER ChildHandle is not NULL and it is not a valid | |
| EFI_HANDLE. | |
| @retval EFI_INVALID_PARAMETER Language is NULL. | |
| @retval EFI_INVALID_PARAMETER ControllerName is NULL. | |
| @retval EFI_UNSUPPORTED The driver specified by This is not currently | |
| managing the controller specified by | |
| ControllerHandle and ChildHandle. | |
| @retval EFI_UNSUPPORTED The driver specified by This does not support the | |
| language specified by Language. | |
| **/ | |
| EFI_STATUS | |
| EFIAPI | |
| SataControllerComponentNameGetControllerName ( | |
| IN EFI_COMPONENT_NAME_PROTOCOL *This, | |
| IN EFI_HANDLE ControllerHandle, | |
| IN EFI_HANDLE ChildHandle OPTIONAL, | |
| IN CHAR8 *Language, | |
| OUT CHAR16 **ControllerName | |
| ); | |
| #endif |