diff options
Diffstat (limited to 'MdeModulePkg/Bus/Usb/UsbMassStorageDxe/UsbMassImpl.h')
| -rw-r--r-- | MdeModulePkg/Bus/Usb/UsbMassStorageDxe/UsbMassImpl.h | 196 |
1 files changed, 187 insertions, 9 deletions
diff --git a/MdeModulePkg/Bus/Usb/UsbMassStorageDxe/UsbMassImpl.h b/MdeModulePkg/Bus/Usb/UsbMassStorageDxe/UsbMassImpl.h index 95395f7e1c..c4c987f2f6 100644 --- a/MdeModulePkg/Bus/Usb/UsbMassStorageDxe/UsbMassImpl.h +++ b/MdeModulePkg/Bus/Usb/UsbMassStorageDxe/UsbMassImpl.h @@ -23,16 +23,8 @@ typedef struct _USB_MASS_DEVICE USB_MASS_DEVICE; #include "UsbMassCbi.h"
#include "UsbMassBoot.h"
-
-//
-// MassStorage raises TPL to TPL_NOTIFY to serialize all its operations
-// to protect shared data structures.
-//
-#define USB_MASS_TPL TPL_NOTIFY
-
#define USB_MASS_SIGNATURE SIGNATURE_32 ('U', 's', 'b', 'M')
-
struct _USB_MASS_DEVICE {
UINT32 Signature;
EFI_HANDLE Controller;
@@ -47,10 +39,196 @@ struct _USB_MASS_DEVICE { VOID *Context; // Opaque storage for mass transport
};
-#define USB_MASS_DEVICE_FROM_BLOCKIO(a) \
+#define USB_MASS_DEVICE_FROM_BLOCK_IO(a) \
CR (a, USB_MASS_DEVICE, BlockIo, USB_MASS_SIGNATURE)
extern EFI_COMPONENT_NAME_PROTOCOL gUsbMassStorageComponentName;
extern EFI_COMPONENT_NAME2_PROTOCOL gUsbMassStorageComponentName2;
+//
+// Functions for Driver Binding Protocol
+//
+
+/**
+ Check whether the controller is a supported USB mass storage.
+
+ @param This The USB mass storage driver binding protocol.
+ @param Controller The controller handle to check.
+ @param RemainingDevicePath The remaining device path.
+
+ @retval EFI_SUCCESS The driver supports this controller.
+ @retval other This device isn't supported.
+
+**/
+EFI_STATUS
+EFIAPI
+USBMassDriverBindingSupported (
+ IN EFI_DRIVER_BINDING_PROTOCOL *This,
+ IN EFI_HANDLE Controller,
+ IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath
+ );
+
+/**
+ Starts the USB mass storage device with this driver.
+
+ This function consumes USB I/O Portocol, intializes USB mass storage device,
+ installs Block I/O Protocol, and submits Asynchronous Interrupt
+ Transfer to manage the USB mass storage device.
+
+ @param This The USB mass storage driver binding protocol.
+ @param Controller The USB mass storage device to start on
+ @param RemainingDevicePath The remaining device path.
+
+ @retval EFI_SUCCESS This driver supports this device.
+ @retval EFI_UNSUPPORTED This driver does not support this device.
+ @retval EFI_DEVICE_ERROR This driver cannot be started due to device Error.
+ @retval EFI_OUT_OF_RESOURCES Can't allocate memory resources.
+ @retval EFI_ALREADY_STARTED This driver has been started.
+
+**/
+EFI_STATUS
+EFIAPI
+USBMassDriverBindingStart (
+ IN EFI_DRIVER_BINDING_PROTOCOL *This,
+ IN EFI_HANDLE Controller,
+ IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath
+ );
+
+/**
+ Stop controlling the device.
+
+ @param This The USB mass storage driver binding
+ @param Controller The device controller controlled by the driver.
+ @param NumberOfChildren The number of children of this device
+ @param ChildHandleBuffer The buffer of children handle.
+
+ @retval EFI_SUCCESS The driver stopped from controlling the device.
+ @retval Others Failed to stop the driver
+
+**/
+EFI_STATUS
+EFIAPI
+USBMassDriverBindingStop (
+ IN EFI_DRIVER_BINDING_PROTOCOL *This,
+ IN EFI_HANDLE Controller,
+ IN UINTN NumberOfChildren,
+ IN EFI_HANDLE *ChildHandleBuffer
+ );
+
+//
+// Functions for Block I/O Protocol
+//
+
+/**
+ Reset the block device.
+
+ This function implements EFI_BLOCK_IO_PROTOCOL.Reset().
+ It resets the block device hardware.
+ ExtendedVerification is ignored in this implementation.
+
+ @param This Indicates a pointer to the calling context.
+ @param ExtendedVerification Indicates that the driver may perform a more exhaustive
+ verification operation of the device during reset.
+
+ @retval EFI_SUCCESS The block device was reset.
+ @retval EFI_DEVICE_ERROR The block device is not functioning correctly and could not be reset.
+
+**/
+EFI_STATUS
+EFIAPI
+UsbMassReset (
+ IN EFI_BLOCK_IO_PROTOCOL *This,
+ IN BOOLEAN ExtendedVerification
+ );
+
+/**
+ Reads the requested number of blocks from the device.
+
+ This function implements EFI_BLOCK_IO_PROTOCOL.ReadBlocks().
+ It reads the requested number of blocks from the device.
+ All the blocks are read, or an error is returned.
+
+ @param This Indicates a pointer to the calling context.
+ @param MediaId The media ID that the read request is for.
+ @param Lba The starting logical block address to read from on the device.
+ @param BufferSize The size of the Buffer in bytes.
+ This must be a multiple of the intrinsic block size of the device.
+ @param Buffer A pointer to the destination buffer for the data. The caller is
+ responsible for either having implicit or explicit ownership of the buffer.
+
+ @retval EFI_SUCCESS The data was read correctly from the device.
+ @retval EFI_DEVICE_ERROR The device reported an error while attempting to perform the read operation.
+ @retval EFI_NO_MEDIA There is no media in the device.
+ @retval EFI_MEDIA_CHANGED The MediaId is not for the current media.
+ @retval EFI_BAD_BUFFER_SIZE The BufferSize parameter is not a multiple of the intrinsic block size of the device.
+ @retval EFI_INVALID_PARAMETER The read request contains LBAs that are not valid,
+ or the buffer is not on proper alignment.
+
+**/
+EFI_STATUS
+EFIAPI
+UsbMassReadBlocks (
+ IN EFI_BLOCK_IO_PROTOCOL *This,
+ IN UINT32 MediaId,
+ IN EFI_LBA Lba,
+ IN UINTN BufferSize,
+ OUT VOID *Buffer
+ );
+
+/**
+ Writes a specified number of blocks to the device.
+
+ This function implements EFI_BLOCK_IO_PROTOCOL.WriteBlocks().
+ It writes a specified number of blocks to the device.
+ All blocks are written, or an error is returned.
+
+ @param This Indicates a pointer to the calling context.
+ @param MediaId The media ID that the write request is for.
+ @param Lba The starting logical block address to be written.
+ @param BufferSize The size of the Buffer in bytes.
+ This must be a multiple of the intrinsic block size of the device.
+ @param Buffer Pointer to the source buffer for the data.
+
+ @retval EFI_SUCCESS The data were written correctly to the device.
+ @retval EFI_WRITE_PROTECTED The device cannot be written to.
+ @retval EFI_NO_MEDIA There is no media in the device.
+ @retval EFI_MEDIA_CHANGED The MediaId is not for the current media.
+ @retval EFI_DEVICE_ERROR The device reported an error while attempting to perform the write operation.
+ @retval EFI_BAD_BUFFER_SIZE The BufferSize parameter is not a multiple of the intrinsic
+ block size of the device.
+ @retval EFI_INVALID_PARAMETER The write request contains LBAs that are not valid,
+ or the buffer is not on proper alignment.
+
+**/
+EFI_STATUS
+EFIAPI
+UsbMassWriteBlocks (
+ IN EFI_BLOCK_IO_PROTOCOL *This,
+ IN UINT32 MediaId,
+ IN EFI_LBA Lba,
+ IN UINTN BufferSize,
+ IN VOID *Buffer
+ );
+
+/**
+ Flushes all modified data to a physical block device.
+
+ This function implements EFI_BLOCK_IO_PROTOCOL.FlushBlocks().
+ USB mass storage device doesn't support write cache,
+ so return EFI_SUCCESS directly.
+
+ @param This Indicates a pointer to the calling context.
+
+ @retval EFI_SUCCESS All outstanding data were written correctly to the device.
+ @retval EFI_DEVICE_ERROR The device reported an error while attempting to write data.
+ @retval EFI_NO_MEDIA There is no media in the device.
+
+**/
+EFI_STATUS
+EFIAPI
+UsbMassFlushBlocks (
+ IN EFI_BLOCK_IO_PROTOCOL *This
+ );
+
+
#endif
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