[mirror_edk2.git] / EmulatorPkg / Include / Protocol / EmuBlockIo.h

/** @file\r
  Emu Block IO2 protocol as defined in the UEFI 2.3.1 specification.\r
\r
  The Block IO2 protocol defines an extension to the Block IO protocol which\r
  enables the ability to read and write data at a block level in a non-blocking\r
  manner.\r
\r
  Copyright (c) 2011, Intel Corporation. All rights reserved.<BR>\r
  This program and the accompanying materials\r
  are licensed and made available under the terms and conditions of the BSD License\r
  which accompanies this distribution.  The full text of the license may be found at\r
  http://opensource.org/licenses/bsd-license.php\r
\r
  THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
  WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
\r
**/\r
\r
#ifndef __EMU_BLOCK_IO_H__\r
#define __EMU_BLOCK_IO_H__\r
\r
#include <Protocol/BlockIo.h>\r
#include <Protocol/BlockIo2.h>\r
\r
#define EMU_BLOCK_IO_PROTOCOL_GUID \\r
{ 0x6888A4AE, 0xAFCE, 0xE84B, { 0x91, 0x02, 0xF7, 0xB9, 0xDA, 0xE6, 0xA0, 0x30 } }\r
\r
typedef struct _EMU_BLOCK_IO_PROTOCOL   EMU_BLOCK_IO_PROTOCOL;\r
\r
\r
\r
/**\r
  Reset the block device hardware.\r
\r
  @param[in]  This                 Indicates a pointer to the calling context.\r
  @param[in]  ExtendedVerification Indicates that the driver may perform a more\r
                                   exhausive verfication operation of the device\r
                                   during reset.\r
\r
  @retval EFI_SUCCESS          The device was reset.\r
  @retval EFI_DEVICE_ERROR     The device is not functioning properly and could\r
                               not be reset.\r
\r
**/\r
typedef\r
EFI_STATUS\r
(EFIAPI *EMU_BLOCK_RESET) (\r
  IN EMU_BLOCK_IO_PROTOCOL   *This,\r
  IN BOOLEAN                 ExtendedVerification\r
  );\r
\r
/**\r
  Read BufferSize bytes from Lba into Buffer.\r
\r
  This function reads the requested number of blocks from the device. All the\r
  blocks are read, or an error is returned.\r
  If EFI_DEVICE_ERROR, EFI_NO_MEDIA,_or EFI_MEDIA_CHANGED is returned and\r
  non-blocking I/O is being used, the Event associated with this request will\r
  not be signaled.\r
\r
  @param[in]       This       Indicates a pointer to the calling context.\r
  @param[in]       MediaId    Id of the media, changes every time the media is\r
                              replaced.\r
  @param[in]       Lba        The starting Logical Block Address to read from.\r
  @param[in, out]  Token	    A pointer to the token associated with the transaction.\r
  @param[in]       BufferSize Size of Buffer, must be a multiple of device block size.\r
  @param[out]      Buffer     A pointer to the destination buffer for the data. The\r
                              caller is responsible for either having implicit or\r
                              explicit ownership of the buffer.\r
\r
  @retval EFI_SUCCESS           The read request was queued if Token->Event is\r
                                not NULL.The data was read correctly from the\r
                                device if the Token->Event is NULL.\r
  @retval EFI_DEVICE_ERROR      The device reported an error while performing\r
                                the read.\r
  @retval EFI_NO_MEDIA          There is no media in the device.\r
  @retval EFI_MEDIA_CHANGED     The MediaId is not for the current media.\r
  @retval EFI_BAD_BUFFER_SIZE   The BufferSize parameter is not a multiple of the\r
                                intrinsic block size of the device.\r
  @retval EFI_INVALID_PARAMETER The read request contains LBAs that are not valid,\r
                                or the buffer is not on proper alignment.\r
  @retval EFI_OUT_OF_RESOURCES  The request could not be completed due to a lack\r
                                of resources.\r
**/\r
typedef\r
EFI_STATUS\r
(EFIAPI *EMU_BLOCK_READ) (\r
  IN     EMU_BLOCK_IO_PROTOCOL  *This,\r
  IN     UINT32                 MediaId,\r
  IN     EFI_LBA                LBA,\r
  IN OUT EFI_BLOCK_IO2_TOKEN    *Token,\r
  IN     UINTN                  BufferSize,\r
     OUT VOID                   *Buffer\r
  );\r
\r
/**\r
  Write BufferSize bytes from Lba into Buffer.\r
\r
  This function writes the requested number of blocks to the device. All blocks\r
  are written, or an error is returned.If EFI_DEVICE_ERROR, EFI_NO_MEDIA,\r
  EFI_WRITE_PROTECTED or EFI_MEDIA_CHANGED is returned and non-blocking I/O is\r
  being used, the Event associated with this request will not be signaled.\r
\r
  @param[in]       This       Indicates a pointer to the calling context.\r
  @param[in]       MediaId    The media ID that the write request is for.\r
  @param[in]       Lba        The starting logical block address to be written. The\r
                              caller is responsible for writing to only legitimate\r
                              locations.\r
  @param[in, out]  Token      A pointer to the token associated with the transaction.\r
  @param[in]       BufferSize Size of Buffer, must be a multiple of device block size.\r
  @param[in]       Buffer     A pointer to the source buffer for the data.\r
\r
  @retval EFI_SUCCESS           The write request was queued if Event is not NULL.\r
                                The data was written correctly to the device if\r
                                the Event is NULL.\r
  @retval EFI_WRITE_PROTECTED   The device can not be written to.\r
  @retval EFI_NO_MEDIA          There is no media in the device.\r
  @retval EFI_MEDIA_CHNAGED     The MediaId does not matched the current device.\r
  @retval EFI_DEVICE_ERROR      The device reported an error while performing the write.\r
  @retval EFI_BAD_BUFFER_SIZE   The Buffer was not a multiple of the block size of the device.\r
  @retval EFI_INVALID_PARAMETER The write request contains LBAs that are not valid,\r
                                or the buffer is not on proper alignment.\r
  @retval EFI_OUT_OF_RESOURCES  The request could not be completed due to a lack\r
                                of resources.\r
\r
**/\r
typedef\r
EFI_STATUS\r
(EFIAPI *EMU_BLOCK_WRITE) (\r
  IN     EMU_BLOCK_IO_PROTOCOL  *This,\r
  IN     UINT32                 MediaId,\r
  IN     EFI_LBA                LBA,\r
  IN OUT EFI_BLOCK_IO2_TOKEN    *Token,\r
  IN     UINTN                  BufferSize,\r
  IN     VOID                   *Buffer\r
  );\r
\r
/**\r
  Flush the Block Device.\r
\r
  If EFI_DEVICE_ERROR, EFI_NO_MEDIA,_EFI_WRITE_PROTECTED or EFI_MEDIA_CHANGED\r
  is returned and non-blocking I/O is being used, the Event associated with\r
  this request will not be signaled.\r
\r
  @param[in]      This     Indicates a pointer to the calling context.\r
  @param[in,out]  Token    A pointer to the token associated with the transaction\r
\r
  @retval EFI_SUCCESS          The flush request was queued if Event is not NULL.\r
                               All outstanding data was written correctly to the\r
                               device if the Event is NULL.\r
  @retval EFI_DEVICE_ERROR     The device reported an error while writting back\r
                               the data.\r
  @retval EFI_WRITE_PROTECTED  The device cannot be written to.\r
  @retval EFI_NO_MEDIA         There is no media in the device.\r
  @retval EFI_MEDIA_CHANGED    The MediaId is not for the current media.\r
  @retval EFI_OUT_OF_RESOURCES The request could not be completed due to a lack\r
                               of resources.\r
\r
**/\r
typedef\r
EFI_STATUS\r
(EFIAPI *EMU_BLOCK_FLUSH) (\r
  IN     EMU_BLOCK_IO_PROTOCOL    *This,\r
  IN OUT EFI_BLOCK_IO2_TOKEN      *Token\r
  );\r
\r
\r
typedef\r
EFI_STATUS\r
(EFIAPI *EMU_BLOCK_CREATE_MAPPING) (\r
  IN     EMU_BLOCK_IO_PROTOCOL    *This,\r
  IN     EFI_BLOCK_IO_MEDIA       *Media\r
  );\r
\r
\r
///\r
///  The Block I/O2 protocol defines an extension to the Block I/O protocol which\r
///  enables the ability to read and write data at a block level in a non-blocking\r
//   manner.\r
///\r
struct _EMU_BLOCK_IO_PROTOCOL  {\r
  EMU_BLOCK_RESET           Reset;\r
  EMU_BLOCK_READ            ReadBlocks;\r
  EMU_BLOCK_WRITE           WriteBlocks;\r
  EMU_BLOCK_FLUSH           FlushBlocks;\r
  EMU_BLOCK_CREATE_MAPPING  CreateMapping;\r
};\r
\r
extern EFI_GUID gEmuBlockIoProtocolGuid;\r
\r
#endif\r
\r
Commit	Line	Data
d59326d3	1	/** @file\r
	2	Emu Block IO2 protocol as defined in the UEFI 2.3.1 specification.\r
	3	\r
	4	The Block IO2 protocol defines an extension to the Block IO protocol which\r
	5	enables the ability to read and write data at a block level in a non-blocking\r
	6	manner.\r
	7	\r
	8	Copyright (c) 2011, Intel Corporation. All rights reserved.<BR>\r
d18d8a1d	9	This program and the accompanying materials\r
	10	are licensed and made available under the terms and conditions of the BSD License\r
	11	which accompanies this distribution. The full text of the license may be found at\r
	12	http://opensource.org/licenses/bsd-license.php\r
d59326d3	13	\r
d18d8a1d	14	THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
d18d8a1d	15	WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
d59326d3	16	\r
	17	**/\r
	18	\r
	19	#ifndef __EMU_BLOCK_IO_H__\r
	20	#define __EMU_BLOCK_IO_H__\r
	21	\r
	22	#include <Protocol/BlockIo.h>\r
	23	#include <Protocol/BlockIo2.h>\r
	24	\r
	25	#define EMU_BLOCK_IO_PROTOCOL_GUID \\r
033d0e5f	26	{ 0x6888A4AE, 0xAFCE, 0xE84B, { 0x91, 0x02, 0xF7, 0xB9, 0xDA, 0xE6, 0xA0, 0x30 } }\r
d59326d3	27	\r
	28	typedef struct _EMU_BLOCK_IO_PROTOCOL EMU_BLOCK_IO_PROTOCOL;\r
	29	\r
	30	\r
	31	\r
	32	/**\r
	33	Reset the block device hardware.\r
	34	\r
	35	@param[in] This Indicates a pointer to the calling context.\r
	36	@param[in] ExtendedVerification Indicates that the driver may perform a more\r
	37	exhausive verfication operation of the device\r
	38	during reset.\r
	39	\r
	40	@retval EFI_SUCCESS The device was reset.\r
	41	@retval EFI_DEVICE_ERROR The device is not functioning properly and could\r
	42	not be reset.\r
	43	\r
	44	**/\r
	45	typedef\r
	46	EFI_STATUS\r
	47	(EFIAPI *EMU_BLOCK_RESET) (\r
	48	IN EMU_BLOCK_IO_PROTOCOL *This,\r
	49	IN BOOLEAN ExtendedVerification\r
	50	);\r
	51	\r
	52	/**\r
	53	Read BufferSize bytes from Lba into Buffer.\r
d18d8a1d	54	\r
d59326d3	55	This function reads the requested number of blocks from the device. All the\r
	56	blocks are read, or an error is returned.\r
	57	If EFI_DEVICE_ERROR, EFI_NO_MEDIA,_or EFI_MEDIA_CHANGED is returned and\r
	58	non-blocking I/O is being used, the Event associated with this request will\r
	59	not be signaled.\r
	60	\r
	61	@param[in] This Indicates a pointer to the calling context.\r
d18d8a1d	62	@param[in] MediaId Id of the media, changes every time the media is\r
d59326d3	63	replaced.\r
	64	@param[in] Lba The starting Logical Block Address to read from.\r
	65	@param[in, out] Token A pointer to the token associated with the transaction.\r
d18d8a1d	66	@param[in] BufferSize Size of Buffer, must be a multiple of device block size.\r
	67	@param[out] Buffer A pointer to the destination buffer for the data. The\r
	68	caller is responsible for either having implicit or\r
d59326d3	69	explicit ownership of the buffer.\r
	70	\r
	71	@retval EFI_SUCCESS The read request was queued if Token->Event is\r
	72	not NULL.The data was read correctly from the\r
	73	device if the Token->Event is NULL.\r
	74	@retval EFI_DEVICE_ERROR The device reported an error while performing\r
	75	the read.\r
	76	@retval EFI_NO_MEDIA There is no media in the device.\r
	77	@retval EFI_MEDIA_CHANGED The MediaId is not for the current media.\r
	78	@retval EFI_BAD_BUFFER_SIZE The BufferSize parameter is not a multiple of the\r
	79	intrinsic block size of the device.\r
d18d8a1d	80	@retval EFI_INVALID_PARAMETER The read request contains LBAs that are not valid,\r
d59326d3	81	or the buffer is not on proper alignment.\r
	82	@retval EFI_OUT_OF_RESOURCES The request could not be completed due to a lack\r
	83	of resources.\r
	84	**/\r
	85	typedef\r
	86	EFI_STATUS\r
	87	(EFIAPI *EMU_BLOCK_READ) (\r
	88	IN EMU_BLOCK_IO_PROTOCOL *This,\r
	89	IN UINT32 MediaId,\r
	90	IN EFI_LBA LBA,\r
	91	IN OUT EFI_BLOCK_IO2_TOKEN *Token,\r
	92	IN UINTN BufferSize,\r
033d0e5f	93	OUT VOID *Buffer\r
d59326d3	94	);\r
	95	\r
	96	/**\r
	97	Write BufferSize bytes from Lba into Buffer.\r
	98	\r
	99	This function writes the requested number of blocks to the device. All blocks\r
	100	are written, or an error is returned.If EFI_DEVICE_ERROR, EFI_NO_MEDIA,\r
	101	EFI_WRITE_PROTECTED or EFI_MEDIA_CHANGED is returned and non-blocking I/O is\r
	102	being used, the Event associated with this request will not be signaled.\r
	103	\r
	104	@param[in] This Indicates a pointer to the calling context.\r
	105	@param[in] MediaId The media ID that the write request is for.\r
	106	@param[in] Lba The starting logical block address to be written. The\r
	107	caller is responsible for writing to only legitimate\r
	108	locations.\r
	109	@param[in, out] Token A pointer to the token associated with the transaction.\r
	110	@param[in] BufferSize Size of Buffer, must be a multiple of device block size.\r
	111	@param[in] Buffer A pointer to the source buffer for the data.\r
	112	\r
	113	@retval EFI_SUCCESS The write request was queued if Event is not NULL.\r
	114	The data was written correctly to the device if\r
	115	the Event is NULL.\r
	116	@retval EFI_WRITE_PROTECTED The device can not be written to.\r
	117	@retval EFI_NO_MEDIA There is no media in the device.\r
	118	@retval EFI_MEDIA_CHNAGED The MediaId does not matched the current device.\r
	119	@retval EFI_DEVICE_ERROR The device reported an error while performing the write.\r
	120	@retval EFI_BAD_BUFFER_SIZE The Buffer was not a multiple of the block size of the device.\r
d18d8a1d	121	@retval EFI_INVALID_PARAMETER The write request contains LBAs that are not valid,\r
d59326d3	122	or the buffer is not on proper alignment.\r
	123	@retval EFI_OUT_OF_RESOURCES The request could not be completed due to a lack\r
	124	of resources.\r
	125	\r
	126	**/\r
	127	typedef\r
	128	EFI_STATUS\r
	129	(EFIAPI *EMU_BLOCK_WRITE) (\r
033d0e5f	130	IN EMU_BLOCK_IO_PROTOCOL *This,\r
d59326d3	131	IN UINT32 MediaId,\r
	132	IN EFI_LBA LBA,\r
	133	IN OUT EFI_BLOCK_IO2_TOKEN *Token,\r
	134	IN UINTN BufferSize,\r
	135	IN VOID *Buffer\r
	136	);\r
	137	\r
	138	/**\r
	139	Flush the Block Device.\r
d18d8a1d	140	\r
d59326d3	141	If EFI_DEVICE_ERROR, EFI_NO_MEDIA,_EFI_WRITE_PROTECTED or EFI_MEDIA_CHANGED\r
d59326d3	142	is returned and non-blocking I/O is being used, the Event associated with\r
d18d8a1d	143	this request will not be signaled.\r
d59326d3	144	\r
	145	@param[in] This Indicates a pointer to the calling context.\r
	146	@param[in,out] Token A pointer to the token associated with the transaction\r
	147	\r
	148	@retval EFI_SUCCESS The flush request was queued if Event is not NULL.\r
	149	All outstanding data was written correctly to the\r
	150	device if the Event is NULL.\r
	151	@retval EFI_DEVICE_ERROR The device reported an error while writting back\r
	152	the data.\r
	153	@retval EFI_WRITE_PROTECTED The device cannot be written to.\r
	154	@retval EFI_NO_MEDIA There is no media in the device.\r
	155	@retval EFI_MEDIA_CHANGED The MediaId is not for the current media.\r
	156	@retval EFI_OUT_OF_RESOURCES The request could not be completed due to a lack\r
	157	of resources.\r
	158	\r
	159	**/\r
	160	typedef\r
	161	EFI_STATUS\r
	162	(EFIAPI *EMU_BLOCK_FLUSH) (\r
	163	IN EMU_BLOCK_IO_PROTOCOL *This,\r
	164	IN OUT EFI_BLOCK_IO2_TOKEN *Token\r
	165	);\r
	166	\r
	167	\r
	168	typedef\r
	169	EFI_STATUS\r
	170	(EFIAPI *EMU_BLOCK_CREATE_MAPPING) (\r
	171	IN EMU_BLOCK_IO_PROTOCOL *This,\r
	172	IN EFI_BLOCK_IO_MEDIA *Media\r
	173	);\r
	174	\r
	175	\r
	176	///\r
	177	/// The Block I/O2 protocol defines an extension to the Block I/O protocol which\r
	178	/// enables the ability to read and write data at a block level in a non-blocking\r
	179	// manner.\r
	180	///\r
	181	struct _EMU_BLOCK_IO_PROTOCOL {\r
	182	EMU_BLOCK_RESET Reset;\r
	183	EMU_BLOCK_READ ReadBlocks;\r
	184	EMU_BLOCK_WRITE WriteBlocks;\r
	185	EMU_BLOCK_FLUSH FlushBlocks;\r
	186	EMU_BLOCK_CREATE_MAPPING CreateMapping;\r
	187	};\r
	188	\r
	189	extern EFI_GUID gEmuBlockIoProtocolGuid;\r
	190	\r
	191	#endif\r
	192	\r