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1 | /** @file\r |
2 | \r | |
3 | Copyright (c) 2019, Intel Corporation. All rights reserved.<BR>\r | |
4 | This program and the accompanying materials\r | |
5 | are licensed and made available under the terms and conditions of the BSD License\r | |
6 | which accompanies this distribution. The full text of the license may be found at\r | |
7 | http://opensource.org/licenses/bsd-license.php\r | |
8 | \r | |
9 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r | |
10 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r | |
11 | \r | |
12 | **/\r | |
13 | \r | |
14 | #ifndef _EDKII_ATA_PASS_THRU_PPI_H_\r | |
15 | #define _EDKII_ATA_PASS_THRU_PPI_H_\r | |
16 | \r | |
17 | #include <Protocol/DevicePath.h>\r | |
18 | #include <Protocol/AtaPassThru.h>\r | |
19 | \r | |
20 | ///\r | |
21 | /// Global ID for the EDKII_PEI_ATA_PASS_THRU_PPI.\r | |
22 | ///\r | |
23 | #define EDKII_PEI_ATA_PASS_THRU_PPI_GUID \\r | |
24 | { \\r | |
25 | 0xa16473fd, 0xd474, 0x4c89, { 0xae, 0xc7, 0x90, 0xb8, 0x3c, 0x73, 0x86, 0x9 } \\r | |
26 | }\r | |
27 | \r | |
28 | //\r | |
29 | // Forward declaration for the EDKII_PEI_ATA_PASS_THRU_PPI.\r | |
30 | //\r | |
31 | typedef struct _EDKII_PEI_ATA_PASS_THRU_PPI EDKII_PEI_ATA_PASS_THRU_PPI;\r | |
32 | \r | |
33 | //\r | |
34 | // Revision The revision to which the ATA Pass Thru PPI interface adheres.\r | |
35 | // All future revisions must be backwards compatible.\r | |
36 | // If a future version is not back wards compatible it is not the same GUID.\r | |
37 | //\r | |
38 | #define EDKII_PEI_ATA_PASS_THRU_PPI_REVISION 0x00010000\r | |
39 | \r | |
40 | \r | |
41 | /**\r | |
42 | Sends an ATA command to an ATA device that is attached to the ATA controller.\r | |
43 | \r | |
44 | @param[in] This The PPI instance pointer.\r | |
45 | @param[in] Port The port number of the ATA device to send\r | |
46 | the command.\r | |
47 | @param[in] PortMultiplierPort The port multiplier port number of the ATA\r | |
48 | device to send the command.\r | |
49 | If there is no port multiplier, then specify\r | |
50 | 0xFFFF.\r | |
51 | @param[in,out] Packet A pointer to the ATA command to send to\r | |
52 | the ATA device specified by Port and\r | |
53 | PortMultiplierPort.\r | |
54 | \r | |
55 | @retval EFI_SUCCESS The ATA command was sent by the host. For\r | |
56 | bi-directional commands, InTransferLength bytes\r | |
57 | were transferred from InDataBuffer. For write\r | |
58 | and bi-directional commands, OutTransferLength\r | |
59 | bytes were transferred by OutDataBuffer.\r | |
60 | @retval EFI_NOT_FOUND The specified ATA device is not found.\r | |
61 | @retval EFI_INVALID_PARAMETER The contents of Acb are invalid. The ATA command\r | |
62 | was not sent, so no additional status information\r | |
63 | is available.\r | |
64 | @retval EFI_BAD_BUFFER_SIZE The ATA command was not executed. The number\r | |
65 | of bytes that could be transferred is returned\r | |
66 | in InTransferLength. For write and bi-directional\r | |
67 | commands, OutTransferLength bytes were transferred\r | |
68 | by OutDataBuffer.\r | |
69 | @retval EFI_NOT_READY The ATA command could not be sent because there\r | |
70 | are too many ATA commands already queued. The\r | |
71 | caller may retry again later.\r | |
72 | @retval EFI_DEVICE_ERROR A device error occurred while attempting to\r | |
73 | send the ATA command.\r | |
74 | \r | |
75 | **/\r | |
76 | typedef\r | |
77 | EFI_STATUS\r | |
78 | (EFIAPI *EDKII_PEI_ATA_PASS_THRU_PASSTHRU) (\r | |
79 | IN EDKII_PEI_ATA_PASS_THRU_PPI *This,\r | |
80 | IN UINT16 Port,\r | |
81 | IN UINT16 PortMultiplierPort,\r | |
82 | IN OUT EFI_ATA_PASS_THRU_COMMAND_PACKET *Packet\r | |
83 | );\r | |
84 | \r | |
85 | /**\r | |
86 | Used to retrieve the list of legal port numbers for ATA devices on an ATA controller.\r | |
87 | These can either be the list of ports where ATA devices are actually present or the\r | |
88 | list of legal port numbers for the ATA controller. Regardless, the caller of this\r | |
89 | function must probe the port number returned to see if an ATA device is actually\r | |
90 | present at that location on the ATA controller.\r | |
91 | \r | |
92 | The GetNextPort() function retrieves the port number on an ATA controller. If on\r | |
93 | input Port is 0xFFFF, then the port number of the first port on the ATA controller\r | |
94 | is returned in Port and EFI_SUCCESS is returned.\r | |
95 | \r | |
96 | If Port is a port number that was returned on a previous call to GetNextPort(),\r | |
97 | then the port number of the next port on the ATA controller is returned in Port,\r | |
98 | and EFI_SUCCESS is returned. If Port is not 0xFFFF and Port was not returned on\r | |
99 | a previous call to GetNextPort(), then EFI_INVALID_PARAMETER is returned.\r | |
100 | \r | |
101 | If Port is the port number of the last port on the ATA controller, then EFI_NOT_FOUND\r | |
102 | is returned.\r | |
103 | \r | |
104 | @param[in] This The PPI instance pointer.\r | |
105 | @param[in,out] Port On input, a pointer to the port number on the ATA controller.\r | |
106 | On output, a pointer to the next port number on the ATA\r | |
107 | controller. An input value of 0xFFFF retrieves the first\r | |
108 | port number on the ATA controller.\r | |
109 | \r | |
110 | @retval EFI_SUCCESS The next port number on the ATA controller was\r | |
111 | returned in Port.\r | |
112 | @retval EFI_NOT_FOUND There are no more ports on this ATA controller.\r | |
113 | @retval EFI_INVALID_PARAMETER Port is not 0xFFFF and Port was not returned\r | |
114 | on a previous call to GetNextPort().\r | |
115 | \r | |
116 | **/\r | |
117 | typedef\r | |
118 | EFI_STATUS\r | |
119 | (EFIAPI *EDKII_PEI_ATA_PASS_THRU_THRU_GET_NEXT_PORT) (\r | |
120 | IN EDKII_PEI_ATA_PASS_THRU_PPI *This,\r | |
121 | IN OUT UINT16 *Port\r | |
122 | );\r | |
123 | \r | |
124 | /**\r | |
125 | Used to retrieve the list of legal port multiplier port numbers for ATA devices\r | |
126 | on a port of an ATA controller. These can either be the list of port multiplier\r | |
127 | ports where ATA devices are actually present on port or the list of legal port\r | |
128 | multiplier ports on that port. Regardless, the caller of this function must probe\r | |
129 | the port number and port multiplier port number returned to see if an ATA device\r | |
130 | is actually present.\r | |
131 | \r | |
132 | The GetNextDevice() function retrieves the port multiplier port number of an ATA\r | |
133 | device present on a port of an ATA controller.\r | |
134 | \r | |
135 | If PortMultiplierPort points to a port multiplier port number value that was\r | |
136 | returned on a previous call to GetNextDevice(), then the port multiplier port\r | |
137 | number of the next ATA device on the port of the ATA controller is returned in\r | |
138 | PortMultiplierPort, and EFI_SUCCESS is returned.\r | |
139 | \r | |
140 | If PortMultiplierPort points to 0xFFFF, then the port multiplier port number\r | |
141 | of the first ATA device on port of the ATA controller is returned in PortMultiplierPort\r | |
142 | and EFI_SUCCESS is returned.\r | |
143 | \r | |
144 | If PortMultiplierPort is not 0xFFFF and the value pointed to by PortMultiplierPort\r | |
145 | was not returned on a previous call to GetNextDevice(), then EFI_INVALID_PARAMETER\r | |
146 | is returned.\r | |
147 | \r | |
148 | If PortMultiplierPort is the port multiplier port number of the last ATA device\r | |
149 | on the port of the ATA controller, then EFI_NOT_FOUND is returned.\r | |
150 | \r | |
151 | @param[in] This The PPI instance pointer.\r | |
152 | @param[in] Port The port number present on the ATA controller.\r | |
153 | @param[in,out] PortMultiplierPort On input, a pointer to the port multiplier\r | |
154 | port number of an ATA device present on the\r | |
155 | ATA controller. If on input a PortMultiplierPort\r | |
156 | of 0xFFFF is specified, then the port multiplier\r | |
157 | port number of the first ATA device is returned.\r | |
158 | On output, a pointer to the port multiplier port\r | |
159 | number of the next ATA device present on an ATA\r | |
160 | controller.\r | |
161 | \r | |
162 | @retval EFI_SUCCESS The port multiplier port number of the next ATA\r | |
163 | device on the port of the ATA controller was\r | |
164 | returned in PortMultiplierPort.\r | |
165 | @retval EFI_NOT_FOUND There are no more ATA devices on this port of\r | |
166 | the ATA controller.\r | |
167 | @retval EFI_INVALID_PARAMETER PortMultiplierPort is not 0xFFFF, and PortMultiplierPort\r | |
168 | was not returned on a previous call to GetNextDevice().\r | |
169 | \r | |
170 | **/\r | |
171 | typedef\r | |
172 | EFI_STATUS\r | |
173 | (EFIAPI *EDKII_PEI_ATA_PASS_THRU_GET_NEXT_DEVICE) (\r | |
174 | IN EDKII_PEI_ATA_PASS_THRU_PPI *This,\r | |
175 | IN UINT16 Port,\r | |
176 | IN OUT UINT16 *PortMultiplierPort\r | |
177 | );\r | |
178 | \r | |
179 | /**\r | |
180 | Gets the device path information of the underlying ATA host controller.\r | |
181 | \r | |
182 | @param[in] This The PPI instance pointer.\r | |
183 | @param[out] DevicePathLength The length of the device path in bytes specified\r | |
184 | by DevicePath.\r | |
185 | @param[out] DevicePath The device path of the underlying ATA host controller.\r | |
186 | This field re-uses EFI Device Path Protocol as\r | |
187 | defined by Section 10.2 EFI Device Path Protocol\r | |
188 | of UEFI 2.7 Specification.\r | |
189 | \r | |
190 | @retval EFI_SUCCESS The device path of the ATA host controller has\r | |
191 | been successfully returned.\r | |
192 | @retval EFI_INVALID_PARAMETER DevicePathLength or DevicePath is NULL.\r | |
193 | @retval EFI_OUT_OF_RESOURCES Not enough resource to return the device path.\r | |
194 | \r | |
195 | **/\r | |
196 | typedef\r | |
197 | EFI_STATUS\r | |
198 | (EFIAPI *EDKII_PEI_ATA_PASS_THRU_GET_DEVICE_PATH) (\r | |
199 | IN EDKII_PEI_ATA_PASS_THRU_PPI *This,\r | |
200 | OUT UINTN *DevicePathLength,\r | |
201 | OUT EFI_DEVICE_PATH_PROTOCOL **DevicePath\r | |
202 | );\r | |
203 | \r | |
204 | //\r | |
205 | // EDKII_PEI_ATA_PASS_THRU_PPI provides the services that are required to send\r | |
206 | // ATA commands to an ATA device during PEI.\r | |
207 | //\r | |
208 | struct _EDKII_PEI_ATA_PASS_THRU_PPI {\r | |
209 | UINT64 Revision;\r | |
210 | EFI_ATA_PASS_THRU_MODE *Mode;\r | |
211 | EDKII_PEI_ATA_PASS_THRU_PASSTHRU PassThru;\r | |
212 | EDKII_PEI_ATA_PASS_THRU_THRU_GET_NEXT_PORT GetNextPort;\r | |
213 | EDKII_PEI_ATA_PASS_THRU_GET_NEXT_DEVICE GetNextDevice;\r | |
214 | EDKII_PEI_ATA_PASS_THRU_GET_DEVICE_PATH GetDevicePath;\r | |
215 | };\r | |
216 | \r | |
217 | extern EFI_GUID gEdkiiPeiAtaPassThruPpiGuid;\r | |
218 | \r | |
219 | #endif\r |