[mirror_edk2.git] / MdeModulePkg / Bus / Ata / AhciPei / AhciPeiPassThru.h

/** @file\r
  The AhciPei driver is used to manage ATA hard disk device working under AHCI\r
  mode at PEI phase.\r
\r
  Copyright (c) 2019, Intel Corporation. All rights reserved.<BR>\r
\r
  SPDX-License-Identifier: BSD-2-Clause-Patent\r
\r
**/\r
\r
#ifndef _AHCI_PEI_PASSTHRU_H_\r
#define _AHCI_PEI_PASSTHRU_H_\r
\r
/**\r
  Sends an ATA command to an ATA device that is attached to the ATA controller.\r
\r
  @param[in]     This                  The PPI instance pointer.\r
  @param[in]     Port                  The port number of the ATA device to send\r
                                       the command.\r
  @param[in]     PortMultiplierPort    The port multiplier port number of the ATA\r
                                       device to send the command.\r
                                       If there is no port multiplier, then specify\r
                                       0xFFFF.\r
  @param[in,out] Packet                A pointer to the ATA command to send to\r
                                       the ATA device specified by Port and\r
                                       PortMultiplierPort.\r
\r
  @retval EFI_SUCCESS              The ATA command was sent by the host. For\r
                                   bi-directional commands, InTransferLength bytes\r
                                   were transferred from InDataBuffer. For write\r
                                   and bi-directional commands, OutTransferLength\r
                                   bytes were transferred by OutDataBuffer.\r
  @retval EFI_NOT_FOUND            The specified ATA device is not found.\r
  @retval EFI_INVALID_PARAMETER    The contents of Acb are invalid. The ATA command\r
                                   was not sent, so no additional status information\r
                                   is available.\r
  @retval EFI_BAD_BUFFER_SIZE      The ATA command was not executed. The number\r
                                   of bytes that could be transferred is returned\r
                                   in InTransferLength. For write and bi-directional\r
                                   commands, OutTransferLength bytes were transferred\r
                                   by OutDataBuffer.\r
  @retval EFI_NOT_READY            The ATA command could not be sent because there\r
                                   are too many ATA commands already queued. The\r
                                   caller may retry again later.\r
  @retval EFI_DEVICE_ERROR         A device error occurred while attempting to\r
                                   send the ATA command.\r
\r
**/\r
EFI_STATUS\r
EFIAPI\r
AhciAtaPassThruPassThru (\r
  IN     EDKII_PEI_ATA_PASS_THRU_PPI         *This,\r
  IN     UINT16                              Port,\r
  IN     UINT16                              PortMultiplierPort,\r
  IN OUT EFI_ATA_PASS_THRU_COMMAND_PACKET    *Packet\r
  );\r
\r
/**\r
  Used to retrieve the list of legal port numbers for ATA devices on an ATA controller.\r
  These can either be the list of ports where ATA devices are actually present or the\r
  list of legal port numbers for the ATA controller. Regardless, the caller of this\r
  function must probe the port number returned to see if an ATA device is actually\r
  present at that location on the ATA controller.\r
\r
  The GetNextPort() function retrieves the port number on an ATA controller. If on\r
  input Port is 0xFFFF, then the port number of the first port on the ATA controller\r
  is returned in Port and EFI_SUCCESS is returned.\r
\r
  If Port is a port number that was returned on a previous call to GetNextPort(),\r
  then the port number of the next port on the ATA controller is returned in Port,\r
  and EFI_SUCCESS is returned. If Port is not 0xFFFF and Port was not returned on\r
  a previous call to GetNextPort(), then EFI_INVALID_PARAMETER is returned.\r
\r
  If Port is the port number of the last port on the ATA controller, then EFI_NOT_FOUND\r
  is returned.\r
\r
  @param[in]     This    The PPI instance pointer.\r
  @param[in,out] Port    On input, a pointer to the port number on the ATA controller.\r
                         On output, a pointer to the next port number on the ATA\r
                         controller. An input value of 0xFFFF retrieves the first\r
                         port number on the ATA controller.\r
\r
  @retval EFI_SUCCESS              The next port number on the ATA controller was\r
                                   returned in Port.\r
  @retval EFI_NOT_FOUND            There are no more ports on this ATA controller.\r
  @retval EFI_INVALID_PARAMETER    Port is not 0xFFFF and Port was not returned\r
                                   on a previous call to GetNextPort().\r
\r
**/\r
EFI_STATUS\r
EFIAPI\r
AhciAtaPassThruGetNextPort (\r
  IN     EDKII_PEI_ATA_PASS_THRU_PPI    *This,\r
  IN OUT UINT16                         *Port\r
  );\r
\r
/**\r
  Used to retrieve the list of legal port multiplier port numbers for ATA devices\r
  on a port of an ATA controller. These can either be the list of port multiplier\r
  ports where ATA devices are actually present on port or the list of legal port\r
  multiplier ports on that port. Regardless, the caller of this function must probe\r
  the port number and port multiplier port number returned to see if an ATA device\r
  is actually present.\r
\r
  The GetNextDevice() function retrieves the port multiplier port number of an ATA\r
  device present on a port of an ATA controller.\r
\r
  If PortMultiplierPort points to a port multiplier port number value that was\r
  returned on a previous call to GetNextDevice(), then the port multiplier port\r
  number of the next ATA device on the port of the ATA controller is returned in\r
  PortMultiplierPort, and EFI_SUCCESS is returned.\r
\r
  If PortMultiplierPort points to 0xFFFF, then the port multiplier port number\r
  of the first ATA device on port of the ATA controller is returned in PortMultiplierPort\r
  and EFI_SUCCESS is returned.\r
\r
  If PortMultiplierPort is not 0xFFFF and the value pointed to by PortMultiplierPort\r
  was not returned on a previous call to GetNextDevice(), then EFI_INVALID_PARAMETER\r
  is returned.\r
\r
  If PortMultiplierPort is the port multiplier port number of the last ATA device\r
  on the port of the ATA controller, then EFI_NOT_FOUND is returned.\r
\r
  @param[in]     This                  The PPI instance pointer.\r
  @param[in]     Port                  The port number present on the ATA controller.\r
  @param[in,out] PortMultiplierPort    On input, a pointer to the port multiplier\r
                                       port number of an ATA device present on the\r
                                       ATA controller. If on input a PortMultiplierPort\r
                                       of 0xFFFF is specified, then the port multiplier\r
                                       port number of the first ATA device is returned.\r
                                       On output, a pointer to the port multiplier port\r
                                       number of the next ATA device present on an ATA\r
                                       controller.\r
\r
  @retval EFI_SUCCESS              The port multiplier port number of the next ATA\r
                                   device on the port of the ATA controller was\r
                                   returned in PortMultiplierPort.\r
  @retval EFI_NOT_FOUND            There are no more ATA devices on this port of\r
                                   the ATA controller.\r
  @retval EFI_INVALID_PARAMETER    PortMultiplierPort is not 0xFFFF, and PortMultiplierPort\r
                                   was not returned on a previous call to GetNextDevice().\r
\r
**/\r
EFI_STATUS\r
EFIAPI\r
AhciAtaPassThruGetNextDevice (\r
  IN     EDKII_PEI_ATA_PASS_THRU_PPI    *This,\r
  IN     UINT16                         Port,\r
  IN OUT UINT16                         *PortMultiplierPort\r
  );\r
\r
/**\r
  Gets the device path information of the underlying ATA host controller.\r
\r
  @param[in]  This                The PPI instance pointer.\r
  @param[out] DevicePathLength    The length of the device path in bytes specified\r
                                  by DevicePath.\r
  @param[out] DevicePath          The device path of the underlying ATA host controller.\r
                                  This field re-uses EFI Device Path Protocol as\r
                                  defined by Section 10.2 EFI Device Path Protocol\r
                                  of UEFI 2.7 Specification.\r
\r
  @retval EFI_SUCCESS              The device path of the ATA host controller has\r
                                   been successfully returned.\r
  @retval EFI_INVALID_PARAMETER    DevicePathLength or DevicePath is NULL.\r
  @retval EFI_OUT_OF_RESOURCES     Not enough resource to return the device path.\r
\r
**/\r
EFI_STATUS\r
EFIAPI\r
AhciAtaPassThruGetDevicePath (\r
  IN  EDKII_PEI_ATA_PASS_THRU_PPI    *This,\r
  OUT UINTN                          *DevicePathLength,\r
  OUT EFI_DEVICE_PATH_PROTOCOL       **DevicePath\r
  );\r
\r
#endif\r
Commit	Line	Data
87bc3f19 HW	1	/** @file\r
	2	The AhciPei driver is used to manage ATA hard disk device working under AHCI\r
	3	mode at PEI phase.\r
	4	\r
	5	Copyright (c) 2019, Intel Corporation. All rights reserved.<BR>\r
	6	\r
9d510e61	7	SPDX-License-Identifier: BSD-2-Clause-Patent\r
87bc3f19 HW	8	\r
	9	**/\r
	10	\r
	11	#ifndef _AHCI_PEI_PASSTHRU_H_\r
	12	#define _AHCI_PEI_PASSTHRU_H_\r
	13	\r
	14	/**\r
	15	Sends an ATA command to an ATA device that is attached to the ATA controller.\r
	16	\r
	17	@param[in] This The PPI instance pointer.\r
	18	@param[in] Port The port number of the ATA device to send\r
	19	the command.\r
	20	@param[in] PortMultiplierPort The port multiplier port number of the ATA\r
	21	device to send the command.\r
	22	If there is no port multiplier, then specify\r
	23	0xFFFF.\r
	24	@param[in,out] Packet A pointer to the ATA command to send to\r
	25	the ATA device specified by Port and\r
	26	PortMultiplierPort.\r
	27	\r
	28	@retval EFI_SUCCESS The ATA command was sent by the host. For\r
	29	bi-directional commands, InTransferLength bytes\r
	30	were transferred from InDataBuffer. For write\r
	31	and bi-directional commands, OutTransferLength\r
	32	bytes were transferred by OutDataBuffer.\r
	33	@retval EFI_NOT_FOUND The specified ATA device is not found.\r
	34	@retval EFI_INVALID_PARAMETER The contents of Acb are invalid. The ATA command\r
	35	was not sent, so no additional status information\r
	36	is available.\r
	37	@retval EFI_BAD_BUFFER_SIZE The ATA command was not executed. The number\r
	38	of bytes that could be transferred is returned\r
	39	in InTransferLength. For write and bi-directional\r
	40	commands, OutTransferLength bytes were transferred\r
	41	by OutDataBuffer.\r
	42	@retval EFI_NOT_READY The ATA command could not be sent because there\r
	43	are too many ATA commands already queued. The\r
	44	caller may retry again later.\r
	45	@retval EFI_DEVICE_ERROR A device error occurred while attempting to\r
	46	send the ATA command.\r
	47	\r
	48	**/\r
	49	EFI_STATUS\r
	50	EFIAPI\r
	51	AhciAtaPassThruPassThru (\r
	52	IN EDKII_PEI_ATA_PASS_THRU_PPI *This,\r
	53	IN UINT16 Port,\r
	54	IN UINT16 PortMultiplierPort,\r
	55	IN OUT EFI_ATA_PASS_THRU_COMMAND_PACKET *Packet\r
	56	);\r
	57	\r
	58	/**\r
	59	Used to retrieve the list of legal port numbers for ATA devices on an ATA controller.\r
	60	These can either be the list of ports where ATA devices are actually present or the\r
	61	list of legal port numbers for the ATA controller. Regardless, the caller of this\r
	62	function must probe the port number returned to see if an ATA device is actually\r
	63	present at that location on the ATA controller.\r
	64	\r
	65	The GetNextPort() function retrieves the port number on an ATA controller. If on\r
	66	input Port is 0xFFFF, then the port number of the first port on the ATA controller\r
	67	is returned in Port and EFI_SUCCESS is returned.\r
	68	\r
	69	If Port is a port number that was returned on a previous call to GetNextPort(),\r
	70	then the port number of the next port on the ATA controller is returned in Port,\r
	71	and EFI_SUCCESS is returned. If Port is not 0xFFFF and Port was not returned on\r
72	a previous call to GetNextPort(), then EFI_INVALID_PARAMETER is returned.\r
73	\r
74	If Port is the port number of the last port on the ATA controller, then EFI_NOT_FOUND\r
75	is returned.\r
76	\r
77	@param[in] This The PPI instance pointer.\r
78	@param[in,out] Port On input, a pointer to the port number on the ATA controller.\r
79	On output, a pointer to the next port number on the ATA\r
80	controller. An input value of 0xFFFF retrieves the first\r
81	port number on the ATA controller.\r
82	\r
83	@retval EFI_SUCCESS The next port number on the ATA controller was\r
84	returned in Port.\r
85	@retval EFI_NOT_FOUND There are no more ports on this ATA controller.\r
86	@retval EFI_INVALID_PARAMETER Port is not 0xFFFF and Port was not returned\r
87	on a previous call to GetNextPort().\r
88	\r
89	**/\r
90	EFI_STATUS\r
91	EFIAPI\r
92	AhciAtaPassThruGetNextPort (\r
93	IN EDKII_PEI_ATA_PASS_THRU_PPI *This,\r
94	IN OUT UINT16 *Port\r
95	);\r
96	\r
97	/**\r
98	Used to retrieve the list of legal port multiplier port numbers for ATA devices\r
99	on a port of an ATA controller. These can either be the list of port multiplier\r
100	ports where ATA devices are actually present on port or the list of legal port\r
101	multiplier ports on that port. Regardless, the caller of this function must probe\r
102	the port number and port multiplier port number returned to see if an ATA device\r
103	is actually present.\r
104	\r
105	The GetNextDevice() function retrieves the port multiplier port number of an ATA\r
106	device present on a port of an ATA controller.\r
107	\r
108	If PortMultiplierPort points to a port multiplier port number value that was\r
109	returned on a previous call to GetNextDevice(), then the port multiplier port\r
110	number of the next ATA device on the port of the ATA controller is returned in\r
111	PortMultiplierPort, and EFI_SUCCESS is returned.\r
112	\r
113	If PortMultiplierPort points to 0xFFFF, then the port multiplier port number\r
114	of the first ATA device on port of the ATA controller is returned in PortMultiplierPort\r
115	and EFI_SUCCESS is returned.\r
116	\r
117	If PortMultiplierPort is not 0xFFFF and the value pointed to by PortMultiplierPort\r
118	was not returned on a previous call to GetNextDevice(), then EFI_INVALID_PARAMETER\r
119	is returned.\r
120	\r
121	If PortMultiplierPort is the port multiplier port number of the last ATA device\r
122	on the port of the ATA controller, then EFI_NOT_FOUND is returned.\r
123	\r
124	@param[in] This The PPI instance pointer.\r
125	@param[in] Port The port number present on the ATA controller.\r
126	@param[in,out] PortMultiplierPort On input, a pointer to the port multiplier\r
127	port number of an ATA device present on the\r
128	ATA controller. If on input a PortMultiplierPort\r
129	of 0xFFFF is specified, then the port multiplier\r
130	port number of the first ATA device is returned.\r
131	On output, a pointer to the port multiplier port\r
132	number of the next ATA device present on an ATA\r
133	controller.\r
134	\r
135	@retval EFI_SUCCESS The port multiplier port number of the next ATA\r
136	device on the port of the ATA controller was\r
137	returned in PortMultiplierPort.\r
138	@retval EFI_NOT_FOUND There are no more ATA devices on this port of\r
139	the ATA controller.\r
140	@retval EFI_INVALID_PARAMETER PortMultiplierPort is not 0xFFFF, and PortMultiplierPort\r
141	was not returned on a previous call to GetNextDevice().\r
142	\r
143	**/\r
144	EFI_STATUS\r
145	EFIAPI\r
146	AhciAtaPassThruGetNextDevice (\r
147	IN EDKII_PEI_ATA_PASS_THRU_PPI *This,\r
148	IN UINT16 Port,\r
149	IN OUT UINT16 *PortMultiplierPort\r
150	);\r
151	\r
152	/**\r
153	Gets the device path information of the underlying ATA host controller.\r
154	\r
155	@param[in] This The PPI instance pointer.\r
156	@param[out] DevicePathLength The length of the device path in bytes specified\r
157	by DevicePath.\r
158	@param[out] DevicePath The device path of the underlying ATA host controller.\r
159	This field re-uses EFI Device Path Protocol as\r
160	defined by Section 10.2 EFI Device Path Protocol\r
161	of UEFI 2.7 Specification.\r
162	\r
163	@retval EFI_SUCCESS The device path of the ATA host controller has\r
164	been successfully returned.\r
165	@retval EFI_INVALID_PARAMETER DevicePathLength or DevicePath is NULL.\r
166	@retval EFI_OUT_OF_RESOURCES Not enough resource to return the device path.\r
167	\r
168	**/\r
169	EFI_STATUS\r
170	EFIAPI\r
171	AhciAtaPassThruGetDevicePath (\r
172	IN EDKII_PEI_ATA_PASS_THRU_PPI *This,\r
173	OUT UINTN *DevicePathLength,\r
174	OUT EFI_DEVICE_PATH_PROTOCOL **DevicePath\r
175	);\r
176	\r
177	#endif\r