| /** @file |
| Header file for Sata Controller driver. |
| |
| Copyright (c) 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. |
| |
| **/ |
| |
| #ifndef _SATA_CONTROLLER_H_ |
| #define _SATA_CONTROLLER_H_ |
| |
| #include <Uefi.h> |
| #include <Protocol/ComponentName.h> |
| #include <Protocol/DriverBinding.h> |
| #include <Protocol/PciIo.h> |
| #include <Protocol/IdeControllerInit.h> |
| #include <Library/UefiDriverEntryPoint.h> |
| #include <Library/DebugLib.h> |
| #include <Library/UefiLib.h> |
| #include <Library/BaseLib.h> |
| #include <Library/BaseMemoryLib.h> |
| #include <Library/MemoryAllocationLib.h> |
| #include <Library/UefiBootServicesTableLib.h> |
| #include <IndustryStandard/Pci.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 |
| |
| /// |
| /// 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 disqualified 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; |
| } 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 Protocol instance pointer. |
| @param Controller Handle of device to stop driver on. |
| @param NumberOfChildren Not used. |
| @param ChildHandleBuffer Not used. |
| |
| @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 |