projects / mirror_edk2.git / blame
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| 54f594e4 | 1 | /** @file\r |
| 2 | The EFI_ATA_PASS_THRU_PROTOCOL provides information about an ATA controller and the ability\r | |
| 3 | to send ATA Command Blocks to any ATA device attached to that ATA controller. The information\r | |
| 4 | includes the attributes of the ATA controller.\r | |
| 5 | \r | |
| 9095d37b LG |
6 | Copyright (c) 2009 - 2018, Intel Corporation. All rights reserved.<BR>\r |
| 7 | This program and the accompanying materials\r | |
| 8 | are licensed and made available under the terms and conditions of the BSD License\r | |
| 9 | which accompanies this distribution. The full text of the license may be found at\r | |
| 10 | http://opensource.org/licenses/bsd-license.php\r | |
| 54f594e4 | 11 | \r |
| 9095d37b LG |
12 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r |
| 13 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r | |
| 54f594e4 | 14 | \r |
| 15 | **/\r | |
| 16 | \r | |
| 17 | #ifndef __ATA_PASS_THROUGH_H__\r | |
| 18 | #define __ATA_PASS_THROUGH_H__\r | |
| 19 | \r | |
| 20 | #define EFI_ATA_PASS_THRU_PROTOCOL_GUID \\r | |
| 21 | { \\r | |
| 22 | 0x1d3de7f0, 0x807, 0x424f, {0xaa, 0x69, 0x11, 0xa5, 0x4e, 0x19, 0xa4, 0x6f } \\r | |
| 23 | }\r | |
| 24 | \r | |
| 25 | typedef struct _EFI_ATA_PASS_THRU_PROTOCOL EFI_ATA_PASS_THRU_PROTOCOL;\r | |
| 26 | \r | |
| 27 | typedef struct {\r | |
| 28 | UINT32 Attributes;\r | |
| 29 | UINT32 IoAlign;\r | |
| 30 | } EFI_ATA_PASS_THRU_MODE;\r | |
| 31 | \r | |
| 32 | ///\r | |
| 33 | /// If this bit is set, then the EFI_ATA_PASS_THRU_PROTOCOL interface is for physical\r | |
| 34 | /// devices on the ATA controller.\r | |
| 35 | ///\r | |
| 36 | #define EFI_ATA_PASS_THRU_ATTRIBUTES_PHYSICAL 0x0001\r | |
| 37 | ///\r | |
| 38 | /// If this bit is set, then the EFI_ATA_PASS_THRU_PROTOCOL interface is for logical\r | |
| 39 | /// devices on the ATA controller.\r | |
| 40 | ///\r | |
| 41 | #define EFI_ATA_PASS_THRU_ATTRIBUTES_LOGICAL 0x0002\r | |
| 42 | ///\r | |
| 43 | /// If this bit is set, then the EFI_ATA_PASS_THRU_PROTOCOL interface supports non blocking\r | |
| 44 | /// I/O. Every EFI_ATA_PASS_THRU_PROTOCOL must support blocking I/O. The support of non-blocking\r | |
| 45 | /// I/O is optional.\r | |
| 46 | ///\r | |
| 47 | #define EFI_ATA_PASS_THRU_ATTRIBUTES_NONBLOCKIO 0x0004\r | |
| 48 | \r | |
| 49 | typedef struct _EFI_ATA_COMMAND_BLOCK {\r | |
| 50 | UINT8 Reserved1[2];\r | |
| 51 | UINT8 AtaCommand;\r | |
| 52 | UINT8 AtaFeatures;\r | |
| 53 | UINT8 AtaSectorNumber;\r | |
| 54 | UINT8 AtaCylinderLow;\r | |
| 55 | UINT8 AtaCylinderHigh;\r | |
| 56 | UINT8 AtaDeviceHead;\r | |
| 57 | UINT8 AtaSectorNumberExp;\r | |
| 58 | UINT8 AtaCylinderLowExp;\r | |
| 9095d37b | 59 | UINT8 AtaCylinderHighExp;\r |
| 54f594e4 | 60 | UINT8 AtaFeaturesExp;\r |
| 61 | UINT8 AtaSectorCount;\r | |
| 62 | UINT8 AtaSectorCountExp;\r | |
| 63 | UINT8 Reserved2[6];\r | |
| 64 | } EFI_ATA_COMMAND_BLOCK;\r | |
| 65 | \r | |
| 66 | typedef struct _EFI_ATA_STATUS_BLOCK {\r | |
| 67 | UINT8 Reserved1[2];\r | |
| 68 | UINT8 AtaStatus;\r | |
| 69 | UINT8 AtaError;\r | |
| 70 | UINT8 AtaSectorNumber;\r | |
| 71 | UINT8 AtaCylinderLow;\r | |
| 72 | UINT8 AtaCylinderHigh;\r | |
| 73 | UINT8 AtaDeviceHead;\r | |
| 74 | UINT8 AtaSectorNumberExp;\r | |
| 75 | UINT8 AtaCylinderLowExp;\r | |
| 9095d37b | 76 | UINT8 AtaCylinderHighExp;\r |
| ea6898b9 | 77 | UINT8 Reserved2;\r |
| 54f594e4 | 78 | UINT8 AtaSectorCount;\r |
| 79 | UINT8 AtaSectorCountExp;\r | |
| ea6898b9 | 80 | UINT8 Reserved3[6];\r |
| 54f594e4 | 81 | } EFI_ATA_STATUS_BLOCK;\r |
| 82 | \r | |
| 83 | typedef UINT8 EFI_ATA_PASS_THRU_CMD_PROTOCOL;\r | |
| 84 | \r | |
| 85 | #define EFI_ATA_PASS_THRU_PROTOCOL_ATA_HARDWARE_RESET 0x00\r | |
| 86 | #define EFI_ATA_PASS_THRU_PROTOCOL_ATA_SOFTWARE_RESET 0x01\r | |
| 87 | #define EFI_ATA_PASS_THRU_PROTOCOL_ATA_NON_DATA 0x02\r | |
| 88 | #define EFI_ATA_PASS_THRU_PROTOCOL_PIO_DATA_IN 0x04\r | |
| 89 | #define EFI_ATA_PASS_THRU_PROTOCOL_PIO_DATA_OUT 0x05\r | |
| 90 | #define EFI_ATA_PASS_THRU_PROTOCOL_DMA 0x06\r | |
| 91 | #define EFI_ATA_PASS_THRU_PROTOCOL_DMA_QUEUED 0x07\r | |
| 92 | #define EFI_ATA_PASS_THRU_PROTOCOL_DEVICE_DIAGNOSTIC 0x08\r | |
| 93 | #define EFI_ATA_PASS_THRU_PROTOCOL_DEVICE_RESET 0x09\r | |
| 94 | #define EFI_ATA_PASS_THRU_PROTOCOL_UDMA_DATA_IN 0x0A\r | |
| 95 | #define EFI_ATA_PASS_THRU_PROTOCOL_UDMA_DATA_OUT 0x0B\r | |
| 96 | #define EFI_ATA_PASS_THRU_PROTOCOL_FPDMA 0x0C\r | |
| 97 | #define EFI_ATA_PASS_THRU_PROTOCOL_RETURN_RESPONSE 0xFF\r | |
| 98 | \r | |
| 99 | typedef UINT8 EFI_ATA_PASS_THRU_LENGTH;\r | |
| 100 | \r | |
| 101 | #define EFI_ATA_PASS_THRU_LENGTH_BYTES 0x80\r | |
| 102 | \r | |
| 103 | \r | |
| 104 | #define EFI_ATA_PASS_THRU_LENGTH_MASK 0x70\r | |
| 105 | #define EFI_ATA_PASS_THRU_LENGTH_NO_DATA_TRANSFER 0x00\r | |
| 106 | #define EFI_ATA_PASS_THRU_LENGTH_FEATURES 0x10\r | |
| 107 | #define EFI_ATA_PASS_THRU_LENGTH_SECTOR_COUNT 0x20\r | |
| 108 | #define EFI_ATA_PASS_THRU_LENGTH_TPSIU 0x30\r | |
| 109 | \r | |
| 110 | #define EFI_ATA_PASS_THRU_LENGTH_COUNT 0x0F\r | |
| 111 | \r | |
| 112 | typedef struct {\r | |
| 113 | ///\r | |
| 114 | /// A pointer to the sense data that was generated by the execution of the ATA\r | |
| 115 | /// command. It must be aligned to the boundary specified in the IoAlign field\r | |
| 116 | /// in the EFI_ATA_PASS_THRU_MODE structure.\r | |
| 117 | ///\r | |
| 118 | EFI_ATA_STATUS_BLOCK *Asb;\r | |
| 119 | ///\r | |
| 120 | /// A pointer to buffer that contains the Command Data Block to send to the ATA\r | |
| 121 | /// device specified by Port and PortMultiplierPort.\r | |
| 122 | ///\r | |
| 123 | EFI_ATA_COMMAND_BLOCK *Acb;\r | |
| 124 | ///\r | |
| 125 | /// The timeout, in 100 ns units, to use for the execution of this ATA command.\r | |
| 126 | /// A Timeout value of 0 means that this function will wait indefinitely for the\r | |
| 127 | /// ATA command to execute. If Timeout is greater than zero, then this function\r | |
| 128 | /// will return EFI_TIMEOUT if the time required to execute the ATA command is\r | |
| 129 | /// greater than Timeout.\r | |
| 130 | ///\r | |
| 131 | UINT64 Timeout;\r | |
| 132 | ///\r | |
| 133 | /// A pointer to the data buffer to transfer between the ATA controller and the\r | |
| 134 | /// ATA device for read and bidirectional commands. For all write and non data\r | |
| 135 | /// commands where InTransferLength is 0 this field is optional and may be NULL.\r | |
| 136 | /// If this field is not NULL, then it must be aligned on the boundary specified\r | |
| 137 | /// by the IoAlign field in the EFI_ATA_PASS_THRU_MODE structure.\r | |
| 138 | ///\r | |
| 139 | VOID *InDataBuffer;\r | |
| 140 | ///\r | |
| 141 | /// A pointer to the data buffer to transfer between the ATA controller and the\r | |
| 142 | /// ATA device for write or bidirectional commands. For all read and non data\r | |
| 143 | /// commands where OutTransferLength is 0 this field is optional and may be NULL.\r | |
| 144 | /// If this field is not NULL, then it must be aligned on the boundary specified\r | |
| 145 | /// by the IoAlign field in the EFI_ATA_PASS_THRU_MODE structure.\r | |
| 146 | ///\r | |
| 147 | VOID *OutDataBuffer;\r | |
| 148 | ///\r | |
| 149 | /// On input, the size, in bytes, of InDataBuffer. On output, the number of bytes\r | |
| 150 | /// transferred between the ATA controller and the ATA device. If InTransferLength\r | |
| 151 | /// is larger than the ATA controller can handle, no data will be transferred,\r | |
| 152 | /// InTransferLength will be updated to contain the number of bytes that the ATA\r | |
| 153 | /// controller is able to transfer, and EFI_BAD_BUFFER_SIZE will be returned.\r | |
| 154 | ///\r | |
| 155 | UINT32 InTransferLength;\r | |
| 156 | ///\r | |
| 157 | /// On Input, the size, in bytes of OutDataBuffer. On Output, the Number of bytes\r | |
| 158 | /// transferred between ATA Controller and the ATA device. If OutTransferLength is\r | |
| 9095d37b | 159 | /// larger than the ATA controller can handle, no data will be transferred,\r |
| 54f594e4 | 160 | /// OutTransferLength will be updated to contain the number of bytes that the ATA\r |
| 161 | /// controller is able to transfer, and EFI_BAD_BUFFER_SIZE will be returned.\r | |
| 162 | ///\r | |
| 163 | UINT32 OutTransferLength;\r | |
| 164 | ///\r | |
| 165 | /// Specifies the protocol used when the ATA device executes the command.\r | |
| 166 | ///\r | |
| 167 | EFI_ATA_PASS_THRU_CMD_PROTOCOL Protocol;\r | |
| 168 | ///\r | |
| 169 | /// Specifies the way in which the ATA command length is encoded.\r | |
| 170 | ///\r | |
| 171 | EFI_ATA_PASS_THRU_LENGTH Length;\r | |
| 172 | } EFI_ATA_PASS_THRU_COMMAND_PACKET;\r | |
| 173 | \r | |
| 174 | \r | |
| 175 | /**\r | |
| 176 | Sends an ATA command to an ATA device that is attached to the ATA controller. This function\r | |
| 177 | supports both blocking I/O and non-blocking I/O. The blocking I/O functionality is required,\r | |
| 178 | and the non-blocking I/O functionality is optional.\r | |
| 179 | \r | |
| 9095d37b LG |
180 | @param[in] This A pointer to the EFI_ATA_PASS_THRU_PROTOCOL instance.\r |
| 181 | @param[in] Port The port number of the ATA device to send the command.\r | |
| 54f594e4 | 182 | @param[in] PortMultiplierPort The port multiplier port number of the ATA device to send the command.\r |
| cc403650 | 183 | If there is no port multiplier, then specify 0xFFFF.\r |
| 54f594e4 | 184 | @param[in,out] Packet A pointer to the ATA command to send to the ATA device specified by Port\r |
| 185 | and PortMultiplierPort.\r | |
| 186 | @param[in] Event If non-blocking I/O is not supported then Event is ignored, and blocking\r | |
| 187 | I/O is performed. If Event is NULL, then blocking I/O is performed. If\r | |
| 188 | Event is not NULL and non blocking I/O is supported, then non-blocking\r | |
| 189 | I/O is performed, and Event will be signaled when the ATA command completes.\r | |
| 190 | \r | |
| 9095d37b | 191 | @retval EFI_SUCCESS The ATA command was sent by the host. For bi-directional commands,\r |
| 54f594e4 | 192 | InTransferLength bytes were transferred from InDataBuffer. For write and\r |
| 193 | bi-directional commands, OutTransferLength bytes were transferred by OutDataBuffer.\r | |
| 194 | @retval EFI_BAD_BUFFER_SIZE The ATA command was not executed. The number of bytes that could be transferred\r | |
| 9095d37b | 195 | is returned in InTransferLength. For write and bi-directional commands,\r |
| 54f594e4 | 196 | OutTransferLength bytes were transferred by OutDataBuffer.\r |
| 197 | @retval EFI_NOT_READY The ATA command could not be sent because there are too many ATA commands\r | |
| 198 | already queued. The caller may retry again later.\r | |
| 199 | @retval EFI_DEVICE_ERROR A device error occurred while attempting to send the ATA command.\r | |
| 200 | @retval EFI_INVALID_PARAMETER Port, PortMultiplierPort, or the contents of Acb are invalid. The ATA\r | |
| 201 | command was not sent, so no additional status information is available.\r | |
| 202 | \r | |
| 203 | **/\r | |
| 204 | typedef\r | |
| 205 | EFI_STATUS\r | |
| 206 | (EFIAPI *EFI_ATA_PASS_THRU_PASSTHRU)(\r | |
| 207 | IN EFI_ATA_PASS_THRU_PROTOCOL *This,\r | |
| 208 | IN UINT16 Port,\r | |
| 209 | IN UINT16 PortMultiplierPort,\r | |
| 210 | IN OUT EFI_ATA_PASS_THRU_COMMAND_PACKET *Packet,\r | |
| 211 | IN EFI_EVENT Event OPTIONAL\r | |
| 212 | );\r | |
| 213 | \r | |
| 214 | /**\r | |
| 93e8d03c | 215 | Used to retrieve the list of legal port numbers for ATA devices on an ATA controller.\r |
| 54f594e4 | 216 | These can either be the list of ports where ATA devices are actually present or the\r |
| 217 | list of legal port numbers for the ATA controller. Regardless, the caller of this\r | |
| 218 | function must probe the port number returned to see if an ATA device is actually\r | |
| 219 | present at that location on the ATA controller.\r | |
| 220 | \r | |
| 221 | The GetNextPort() function retrieves the port number on an ATA controller. If on input\r | |
| 222 | Port is 0xFFFF, then the port number of the first port on the ATA controller is returned\r | |
| 223 | in Port and EFI_SUCCESS is returned.\r | |
| 224 | \r | |
| 225 | If Port is a port number that was returned on a previous call to GetNextPort(), then the\r | |
| 226 | port number of the next port on the ATA controller is returned in Port, and EFI_SUCCESS\r | |
| 227 | is returned. If Port is not 0xFFFF and Port was not returned on a previous call to\r | |
| 228 | GetNextPort(), then EFI_INVALID_PARAMETER is returned.\r | |
| 229 | \r | |
| 230 | If Port is the port number of the last port on the ATA controller, then EFI_NOT_FOUND is\r | |
| 231 | returned.\r | |
| 232 | \r | |
| 9095d37b | 233 | @param[in] This A pointer to the EFI_ATA_PASS_THRU_PROTOCOL instance.\r |
| 54f594e4 | 234 | @param[in,out] Port On input, a pointer to the port number on the ATA controller.\r |
| 235 | On output, a pointer to the next port number on the ATA\r | |
| 236 | controller. An input value of 0xFFFF retrieves the first port\r | |
| 237 | number on the ATA controller.\r | |
| 238 | \r | |
| 239 | @retval EFI_SUCCESS The next port number on the ATA controller was returned in Port.\r | |
| 240 | @retval EFI_NOT_FOUND There are no more ports on this ATA controller.\r | |
| 241 | @retval EFI_INVALID_PARAMETER Port is not 0xFFFF and Port was not returned on a previous call\r | |
| 242 | to GetNextPort().\r | |
| 243 | \r | |
| 244 | **/\r | |
| 245 | typedef\r | |
| 246 | EFI_STATUS\r | |
| 247 | (EFIAPI *EFI_ATA_PASS_THRU_GET_NEXT_PORT)(\r | |
| 248 | IN EFI_ATA_PASS_THRU_PROTOCOL *This,\r | |
| 249 | IN OUT UINT16 *Port\r | |
| 250 | );\r | |
| 251 | \r | |
| 252 | /**\r | |
| 9095d37b LG |
253 | Used to retrieve the list of legal port multiplier port numbers for ATA devices on a port of an ATA\r |
| 254 | controller. These can either be the list of port multiplier ports where ATA devices are actually\r | |
| 255 | present on port or the list of legal port multiplier ports on that port. Regardless, the caller of this\r | |
| 256 | function must probe the port number and port multiplier port number returned to see if an ATA\r | |
| 54f594e4 | 257 | device is actually present.\r |
| 258 | \r | |
| 9095d37b | 259 | The GetNextDevice() function retrieves the port multiplier port number of an ATA device\r |
| 54f594e4 | 260 | present on a port of an ATA controller.\r |
| 9095d37b LG |
261 | \r |
| 262 | If PortMultiplierPort points to a port multiplier port number value that was returned on a\r | |
| 54f594e4 | 263 | previous call to GetNextDevice(), then the port multiplier port number of the next ATA device\r |
| 264 | on the port of the ATA controller is returned in PortMultiplierPort, and EFI_SUCCESS is\r | |
| 265 | returned.\r | |
| 9095d37b LG |
266 | \r |
| 267 | If PortMultiplierPort points to 0xFFFF, then the port multiplier port number of the first\r | |
| 268 | ATA device on port of the ATA controller is returned in PortMultiplierPort and\r | |
| 54f594e4 | 269 | EFI_SUCCESS is returned.\r |
| 9095d37b | 270 | \r |
| 54f594e4 | 271 | If PortMultiplierPort is not 0xFFFF and the value pointed to by PortMultiplierPort\r |
| 272 | was not returned on a previous call to GetNextDevice(), then EFI_INVALID_PARAMETER\r | |
| 273 | is returned.\r | |
| 9095d37b LG |
274 | \r |
| 275 | If PortMultiplierPort is the port multiplier port number of the last ATA device on the port of\r | |
| 54f594e4 | 276 | the ATA controller, then EFI_NOT_FOUND is returned.\r |
| 277 | \r | |
| 278 | @param[in] This A pointer to the EFI_ATA_PASS_THRU_PROTOCOL instance.\r | |
| 279 | @param[in] Port The port number present on the ATA controller.\r | |
| 280 | @param[in,out] PortMultiplierPort On input, a pointer to the port multiplier port number of an\r | |
| 9095d37b LG |
281 | ATA device present on the ATA controller.\r |
| 282 | If on input a PortMultiplierPort of 0xFFFF is specified,\r | |
| 54f594e4 | 283 | then the port multiplier port number of the first ATA device\r |
| 284 | is returned. On output, a pointer to the port multiplier port\r | |
| 285 | number of the next ATA device present on an ATA controller.\r | |
| 286 | \r | |
| 287 | @retval EFI_SUCCESS The port multiplier port number of the next ATA device on the port\r | |
| 288 | of the ATA controller was returned in PortMultiplierPort.\r | |
| 289 | @retval EFI_NOT_FOUND There are no more ATA devices on this port of the ATA controller.\r | |
| 290 | @retval EFI_INVALID_PARAMETER PortMultiplierPort is not 0xFFFF, and PortMultiplierPort was not\r | |
| 291 | returned on a previous call to GetNextDevice().\r | |
| 292 | \r | |
| 293 | **/\r | |
| 294 | typedef\r | |
| 295 | EFI_STATUS\r | |
| 296 | (EFIAPI *EFI_ATA_PASS_THRU_GET_NEXT_DEVICE)(\r | |
| 297 | IN EFI_ATA_PASS_THRU_PROTOCOL *This,\r | |
| 298 | IN UINT16 Port,\r | |
| 299 | IN OUT UINT16 *PortMultiplierPort\r | |
| 300 | );\r | |
| 301 | \r | |
| 302 | /**\r | |
| 303 | Used to allocate and build a device path node for an ATA device on an ATA controller.\r | |
| 304 | \r | |
| 305 | The BuildDevicePath() function allocates and builds a single device node for the ATA\r | |
| 306 | device specified by Port and PortMultiplierPort. If the ATA device specified by Port and\r | |
| 307 | PortMultiplierPort is not present on the ATA controller, then EFI_NOT_FOUND is returned.\r | |
| 308 | If DevicePath is NULL, then EFI_INVALID_PARAMETER is returned. If there are not enough\r | |
| 309 | resources to allocate the device path node, then EFI_OUT_OF_RESOURCES is returned.\r | |
| 310 | \r | |
| 311 | Otherwise, DevicePath is allocated with the boot service AllocatePool(), the contents of\r | |
| 312 | DevicePath are initialized to describe the ATA device specified by Port and PortMultiplierPort,\r | |
| 313 | and EFI_SUCCESS is returned.\r | |
| 314 | \r | |
| 315 | @param[in] This A pointer to the EFI_ATA_PASS_THRU_PROTOCOL instance.\r | |
| 316 | @param[in] Port Port specifies the port number of the ATA device for which a\r | |
| 317 | device path node is to be allocated and built.\r | |
| 318 | @param[in] PortMultiplierPort The port multiplier port number of the ATA device for which a\r | |
| 319 | device path node is to be allocated and built. If there is no\r | |
| cc403650 | 320 | port multiplier, then specify 0xFFFF.\r |
| 54f594e4 | 321 | @param[in,out] DevicePath A pointer to a single device path node that describes the ATA\r |
| 322 | device specified by Port and PortMultiplierPort. This function\r | |
| 323 | is responsible for allocating the buffer DevicePath with the\r | |
| fa3e7746 | 324 | boot service AllocatePool(). It is the caller's responsibility\r |
| 54f594e4 | 325 | to free DevicePath when the caller is finished with DevicePath.\r |
| 326 | @retval EFI_SUCCESS The device path node that describes the ATA device specified by\r | |
| 327 | Port and PortMultiplierPort was allocated and returned in DevicePath.\r | |
| 328 | @retval EFI_NOT_FOUND The ATA device specified by Port and PortMultiplierPort does not\r | |
| 329 | exist on the ATA controller.\r | |
| 330 | @retval EFI_INVALID_PARAMETER DevicePath is NULL.\r | |
| 331 | @retval EFI_OUT_OF_RESOURCES There are not enough resources to allocate DevicePath.\r | |
| 332 | \r | |
| 333 | **/\r | |
| 334 | typedef\r | |
| 335 | EFI_STATUS\r | |
| 336 | (EFIAPI *EFI_ATA_PASS_THRU_BUILD_DEVICE_PATH)(\r | |
| 337 | IN EFI_ATA_PASS_THRU_PROTOCOL *This,\r | |
| 338 | IN UINT16 Port,\r | |
| 339 | IN UINT16 PortMultiplierPort,\r | |
| 340 | IN OUT EFI_DEVICE_PATH_PROTOCOL **DevicePath\r | |
| 341 | );\r | |
| 342 | \r | |
| 343 | /**\r | |
| 344 | Used to translate a device path node to a port number and port multiplier port number.\r | |
| 345 | \r | |
| 346 | The GetDevice() function determines the port and port multiplier port number associated with\r | |
| 347 | the ATA device described by DevicePath. If DevicePath is a device path node type that the\r | |
| 9095d37b | 348 | ATA Pass Thru driver supports, then the ATA Pass Thru driver will attempt to translate the contents\r |
| 54f594e4 | 349 | DevicePath into a port number and port multiplier port number.\r |
| 350 | \r | |
| 351 | If this translation is successful, then that port number and port multiplier port number are returned\r | |
| 352 | in Port and PortMultiplierPort, and EFI_SUCCESS is returned.\r | |
| 353 | \r | |
| 354 | If DevicePath, Port, or PortMultiplierPort are NULL, then EFI_INVALID_PARAMETER is returned.\r | |
| 355 | \r | |
| 9095d37b | 356 | If DevicePath is not a device path node type that the ATA Pass Thru driver supports, then\r |
| 54f594e4 | 357 | EFI_UNSUPPORTED is returned.\r |
| 358 | \r | |
| 9095d37b LG |
359 | If DevicePath is a device path node type that the ATA Pass Thru driver supports, but there is not\r |
| 360 | a valid translation from DevicePath to a port number and port multiplier port number, then\r | |
| 54f594e4 | 361 | EFI_NOT_FOUND is returned.\r |
| 362 | \r | |
| 363 | @param[in] This A pointer to the EFI_ATA_PASS_THRU_PROTOCOL instance.\r | |
| 364 | @param[in] DevicePath A pointer to the device path node that describes an ATA device on the\r | |
| 365 | ATA controller.\r | |
| 366 | @param[out] Port On return, points to the port number of an ATA device on the ATA controller.\r | |
| 367 | @param[out] PortMultiplierPort On return, points to the port multiplier port number of an ATA device\r | |
| 368 | on the ATA controller.\r | |
| 369 | \r | |
| 370 | @retval EFI_SUCCESS DevicePath was successfully translated to a port number and port multiplier\r | |
| 371 | port number, and they were returned in Port and PortMultiplierPort.\r | |
| 372 | @retval EFI_INVALID_PARAMETER DevicePath is NULL.\r | |
| 373 | @retval EFI_INVALID_PARAMETER Port is NULL.\r | |
| 374 | @retval EFI_INVALID_PARAMETER PortMultiplierPort is NULL.\r | |
| 375 | @retval EFI_UNSUPPORTED This driver does not support the device path node type in DevicePath.\r | |
| 376 | @retval EFI_NOT_FOUND A valid translation from DevicePath to a port number and port multiplier\r | |
| 377 | port number does not exist.\r | |
| 378 | **/\r | |
| 379 | typedef\r | |
| 380 | EFI_STATUS\r | |
| 381 | (EFIAPI *EFI_ATA_PASS_THRU_GET_DEVICE)(\r | |
| 382 | IN EFI_ATA_PASS_THRU_PROTOCOL *This,\r | |
| 383 | IN EFI_DEVICE_PATH_PROTOCOL *DevicePath,\r | |
| 384 | OUT UINT16 *Port,\r | |
| 385 | OUT UINT16 *PortMultiplierPort\r | |
| 386 | );\r | |
| 387 | \r | |
| 388 | /**\r | |
| 389 | Resets a specific port on the ATA controller. This operation also resets all the ATA devices\r | |
| 390 | connected to the port.\r | |
| 391 | \r | |
| 392 | The ResetChannel() function resets an a specific port on an ATA controller. This operation\r | |
| 393 | resets all the ATA devices connected to that port. If this ATA controller does not support\r | |
| 394 | a reset port operation, then EFI_UNSUPPORTED is returned.\r | |
| 395 | \r | |
| 396 | If a device error occurs while executing that port reset operation, then EFI_DEVICE_ERROR is\r | |
| 397 | returned.\r | |
| 398 | \r | |
| 399 | If a timeout occurs during the execution of the port reset operation, then EFI_TIMEOUT is returned.\r | |
| 400 | \r | |
| 401 | If the port reset operation is completed, then EFI_SUCCESS is returned.\r | |
| 402 | \r | |
| 403 | @param[in] This A pointer to the EFI_ATA_PASS_THRU_PROTOCOL instance.\r | |
| 404 | @param[in] Port The port number on the ATA controller.\r | |
| 405 | \r | |
| 406 | @retval EFI_SUCCESS The ATA controller port was reset.\r | |
| 407 | @retval EFI_UNSUPPORTED The ATA controller does not support a port reset operation.\r | |
| 408 | @retval EFI_DEVICE_ERROR A device error occurred while attempting to reset the ATA port.\r | |
| 409 | @retval EFI_TIMEOUT A timeout occurred while attempting to reset the ATA port.\r | |
| 410 | \r | |
| 411 | **/\r | |
| 412 | typedef\r | |
| 413 | EFI_STATUS\r | |
| 414 | (EFIAPI *EFI_ATA_PASS_THRU_RESET_PORT)(\r | |
| 415 | IN EFI_ATA_PASS_THRU_PROTOCOL *This,\r | |
| 416 | IN UINT16 Port\r | |
| 417 | );\r | |
| 418 | \r | |
| 419 | /**\r | |
| 420 | Resets an ATA device that is connected to an ATA controller.\r | |
| 421 | \r | |
| 422 | The ResetDevice() function resets the ATA device specified by Port and PortMultiplierPort.\r | |
| 423 | If this ATA controller does not support a device reset operation, then EFI_UNSUPPORTED is\r | |
| 424 | returned.\r | |
| 425 | \r | |
| 9095d37b | 426 | If Port or PortMultiplierPort are not in a valid range for this ATA controller, then\r |
| 54f594e4 | 427 | EFI_INVALID_PARAMETER is returned.\r |
| 428 | \r | |
| 429 | If a device error occurs while executing that device reset operation, then EFI_DEVICE_ERROR\r | |
| 430 | is returned.\r | |
| 431 | \r | |
| 432 | If a timeout occurs during the execution of the device reset operation, then EFI_TIMEOUT is\r | |
| 433 | returned.\r | |
| 434 | \r | |
| 435 | If the device reset operation is completed, then EFI_SUCCESS is returned.\r | |
| 436 | \r | |
| 437 | @param[in] This A pointer to the EFI_ATA_PASS_THRU_PROTOCOL instance.\r | |
| 438 | @param[in] Port Port represents the port number of the ATA device to be reset.\r | |
| 439 | @param[in] PortMultiplierPort The port multiplier port number of the ATA device to reset.\r | |
| cc403650 | 440 | If there is no port multiplier, then specify 0xFFFF.\r |
| 54f594e4 | 441 | @retval EFI_SUCCESS The ATA device specified by Port and PortMultiplierPort was reset.\r |
| 442 | @retval EFI_UNSUPPORTED The ATA controller does not support a device reset operation.\r | |
| 443 | @retval EFI_INVALID_PARAMETER Port or PortMultiplierPort are invalid.\r | |
| 444 | @retval EFI_DEVICE_ERROR A device error occurred while attempting to reset the ATA device\r | |
| 445 | specified by Port and PortMultiplierPort.\r | |
| 446 | @retval EFI_TIMEOUT A timeout occurred while attempting to reset the ATA device\r | |
| 447 | specified by Port and PortMultiplierPort.\r | |
| 448 | \r | |
| 449 | **/\r | |
| 450 | typedef\r | |
| 451 | EFI_STATUS\r | |
| 452 | (EFIAPI *EFI_ATA_PASS_THRU_RESET_DEVICE)(\r | |
| 453 | IN EFI_ATA_PASS_THRU_PROTOCOL *This,\r | |
| 454 | IN UINT16 Port,\r | |
| 455 | IN UINT16 PortMultiplierPort\r | |
| 456 | );\r | |
| 457 | \r | |
| 458 | struct _EFI_ATA_PASS_THRU_PROTOCOL {\r | |
| 459 | EFI_ATA_PASS_THRU_MODE *Mode;\r | |
| 460 | EFI_ATA_PASS_THRU_PASSTHRU PassThru;\r | |
| 461 | EFI_ATA_PASS_THRU_GET_NEXT_PORT GetNextPort;\r | |
| 462 | EFI_ATA_PASS_THRU_GET_NEXT_DEVICE GetNextDevice;\r | |
| 463 | EFI_ATA_PASS_THRU_BUILD_DEVICE_PATH BuildDevicePath;\r | |
| 464 | EFI_ATA_PASS_THRU_GET_DEVICE GetDevice;\r | |
| 465 | EFI_ATA_PASS_THRU_RESET_PORT ResetPort;\r | |
| 466 | EFI_ATA_PASS_THRU_RESET_DEVICE ResetDevice;\r | |
| 467 | };\r | |
| 468 | \r | |
| 469 | extern EFI_GUID gEfiAtaPassThruProtocolGuid;\r | |
| 470 | \r | |
| 471 | #endif\r |