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1 | /** @file\r |
2 | *\r | |
3 | * Copyright (c) 2011-2015, ARM Limited. All rights reserved.\r | |
4 | *\r | |
878b807a | 5 | * SPDX-License-Identifier: BSD-2-Clause-Patent\r |
f6342447 OM |
6 | *\r |
7 | **/\r | |
8 | \r | |
9 | #include "SataSiI3132.h"\r | |
10 | \r | |
11 | #include <IndustryStandard/Atapi.h>\r | |
12 | #include <Library/DevicePathLib.h>\r | |
13 | \r | |
14 | SATA_SI3132_DEVICE*\r | |
15 | GetSataDevice (\r | |
16 | IN SATA_SI3132_INSTANCE* SataInstance,\r | |
17 | IN UINT16 Port,\r | |
18 | IN UINT16 PortMultiplierPort\r | |
19 | ) {\r | |
20 | LIST_ENTRY *List;\r | |
21 | SATA_SI3132_PORT *SataPort;\r | |
22 | SATA_SI3132_DEVICE *SataDevice;\r | |
23 | \r | |
24 | if (Port >= SATA_SII3132_MAXPORT) {\r | |
25 | return NULL;\r | |
26 | }\r | |
27 | \r | |
28 | SataPort = &(SataInstance->Ports[Port]);\r | |
29 | List = SataPort->Devices.ForwardLink;\r | |
30 | \r | |
31 | while (List != &SataPort->Devices) {\r | |
32 | SataDevice = (SATA_SI3132_DEVICE*)List;\r | |
33 | if (SataDevice->Index == PortMultiplierPort) {\r | |
34 | return SataDevice;\r | |
35 | }\r | |
36 | List = List->ForwardLink;\r | |
37 | }\r | |
38 | return NULL;\r | |
39 | }\r | |
40 | \r | |
41 | EFI_STATUS\r | |
42 | SiI3132AtaPassThruCommand (\r | |
43 | IN SATA_SI3132_INSTANCE *SataSiI3132Instance,\r | |
44 | IN SATA_SI3132_PORT *SataPort,\r | |
45 | IN UINT16 PortMultiplierPort,\r | |
46 | IN OUT EFI_ATA_PASS_THRU_COMMAND_PACKET *Packet,\r | |
47 | IN EFI_EVENT Event OPTIONAL\r | |
48 | )\r | |
49 | {\r | |
50 | SATA_SI3132_DEVICE *SataDevice;\r | |
51 | EFI_PHYSICAL_ADDRESS PhysInDataBuffer;\r | |
52 | UINTN InDataBufferLength = 0;\r | |
53 | EFI_PHYSICAL_ADDRESS PhysOutDataBuffer;\r | |
54 | UINTN OutDataBufferLength;\r | |
55 | CONST UINTN EmptySlot = 0;\r | |
56 | UINTN Control = PRB_CTRL_ATA;\r | |
57 | UINTN Protocol = 0;\r | |
58 | UINT32 Value32, Error, Timeout = 0;\r | |
59 | CONST UINT32 IrqMask = (SII3132_PORT_INT_CMDCOMPL | SII3132_PORT_INT_CMDERR) << 16;\r | |
60 | EFI_STATUS Status;\r | |
61 | VOID* PciAllocMapping = NULL;\r | |
62 | EFI_PCI_IO_PROTOCOL *PciIo;\r | |
63 | \r | |
64 | PciIo = SataSiI3132Instance->PciIo;\r | |
65 | ZeroMem (SataPort->HostPRB, sizeof (SATA_SI3132_PRB));\r | |
66 | \r | |
67 | // Construct Si3132 PRB\r | |
68 | switch (Packet->Protocol) {\r | |
69 | case EFI_ATA_PASS_THRU_PROTOCOL_ATA_HARDWARE_RESET:\r | |
70 | ASSERT (0); //TODO: Implement me!\r | |
71 | break;\r | |
72 | case EFI_ATA_PASS_THRU_PROTOCOL_ATA_SOFTWARE_RESET:\r | |
73 | SATA_TRACE ("SiI3132AtaPassThru() EFI_ATA_PASS_THRU_PROTOCOL_ATA_SOFTWARE_RESET");\r | |
74 | Control = PRB_CTRL_SRST;\r | |
75 | \r | |
76 | if (FeaturePcdGet (PcdSataSiI3132FeaturePMPSupport)) {\r | |
77 | SataPort->HostPRB->Fis.Control = 0x0F;\r | |
78 | }\r | |
79 | break;\r | |
80 | case EFI_ATA_PASS_THRU_PROTOCOL_ATA_NON_DATA:\r | |
81 | ASSERT (0); //TODO: Implement me!\r | |
82 | break;\r | |
83 | \r | |
84 | // There is no difference for SiI3132 between PIO and DMA invokation\r | |
85 | case EFI_ATA_PASS_THRU_PROTOCOL_UDMA_DATA_IN:\r | |
86 | case EFI_ATA_PASS_THRU_PROTOCOL_PIO_DATA_IN:\r | |
87 | // Fixup the size for block transfer. Following UEFI Specification, 'InTransferLength' should\r | |
88 | // be in number of bytes. But for most data transfer commands, the value is in number of blocks\r | |
89 | if (Packet->Acb->AtaCommand == ATA_CMD_IDENTIFY_DRIVE) {\r | |
90 | InDataBufferLength = Packet->InTransferLength;\r | |
91 | } else {\r | |
92 | SataDevice = GetSataDevice (SataSiI3132Instance, SataPort->Index, PortMultiplierPort);\r | |
93 | if (!SataDevice || (SataDevice->BlockSize == 0)) {\r | |
94 | return EFI_INVALID_PARAMETER;\r | |
95 | }\r | |
96 | \r | |
97 | InDataBufferLength = Packet->InTransferLength * SataDevice->BlockSize;\r | |
98 | }\r | |
99 | \r | |
100 | Status = PciIo->Map (\r | |
050d513b | 101 | PciIo, EfiPciIoOperationBusMasterWrite,\r |
f6342447 OM |
102 | Packet->InDataBuffer, &InDataBufferLength, &PhysInDataBuffer, &PciAllocMapping\r |
103 | );\r | |
104 | if (EFI_ERROR (Status)) {\r | |
105 | return Status;\r | |
106 | }\r | |
107 | \r | |
108 | // Construct SGEs (32-bit system)\r | |
109 | SataPort->HostPRB->Sge[0].DataAddressLow = (UINT32)PhysInDataBuffer;\r | |
110 | SataPort->HostPRB->Sge[0].DataAddressHigh = (UINT32)(PhysInDataBuffer >> 32);\r | |
111 | SataPort->HostPRB->Sge[0].Attributes = SGE_TRM; // Only one SGE\r | |
112 | SataPort->HostPRB->Sge[0].DataCount = InDataBufferLength;\r | |
113 | \r | |
114 | // Copy the Ata Command Block\r | |
115 | CopyMem (&SataPort->HostPRB->Fis, Packet->Acb, sizeof (EFI_ATA_COMMAND_BLOCK));\r | |
116 | \r | |
117 | // Fixup the FIS\r | |
118 | SataPort->HostPRB->Fis.FisType = 0x27; // Register - Host to Device FIS\r | |
119 | SataPort->HostPRB->Fis.Control = 1 << 7; // Is a command\r | |
120 | if (FeaturePcdGet (PcdSataSiI3132FeaturePMPSupport)) {\r | |
121 | SataPort->HostPRB->Fis.Control |= PortMultiplierPort & 0xFF;\r | |
122 | }\r | |
123 | break;\r | |
124 | case EFI_ATA_PASS_THRU_PROTOCOL_UDMA_DATA_OUT:\r | |
125 | case EFI_ATA_PASS_THRU_PROTOCOL_PIO_DATA_OUT:\r | |
126 | SataDevice = GetSataDevice (SataSiI3132Instance, SataPort->Index, PortMultiplierPort);\r | |
127 | if (!SataDevice || (SataDevice->BlockSize == 0)) {\r | |
128 | return EFI_INVALID_PARAMETER;\r | |
129 | }\r | |
130 | \r | |
131 | // Fixup the size for block transfer. Following UEFI Specification, 'InTransferLength' should\r | |
132 | // be in number of bytes. But for most data transfer commands, the value is in number of blocks\r | |
133 | OutDataBufferLength = Packet->OutTransferLength * SataDevice->BlockSize;\r | |
134 | \r | |
135 | Status = PciIo->Map (\r | |
050d513b | 136 | PciIo, EfiPciIoOperationBusMasterRead,\r |
f6342447 OM |
137 | Packet->OutDataBuffer, &OutDataBufferLength, &PhysOutDataBuffer, &PciAllocMapping\r |
138 | );\r | |
139 | if (EFI_ERROR (Status)) {\r | |
140 | return Status;\r | |
141 | }\r | |
142 | \r | |
143 | // Construct SGEs (32-bit system)\r | |
144 | SataPort->HostPRB->Sge[0].DataAddressLow = (UINT32)PhysOutDataBuffer;\r | |
145 | SataPort->HostPRB->Sge[0].DataAddressHigh = (UINT32)(PhysOutDataBuffer >> 32);\r | |
146 | SataPort->HostPRB->Sge[0].Attributes = SGE_TRM; // Only one SGE\r | |
147 | SataPort->HostPRB->Sge[0].DataCount = OutDataBufferLength;\r | |
148 | \r | |
149 | // Copy the Ata Command Block\r | |
150 | CopyMem (&SataPort->HostPRB->Fis, Packet->Acb, sizeof (EFI_ATA_COMMAND_BLOCK));\r | |
151 | \r | |
152 | // Fixup the FIS\r | |
153 | SataPort->HostPRB->Fis.FisType = 0x27; // Register - Host to Device FIS\r | |
154 | SataPort->HostPRB->Fis.Control = 1 << 7; // Is a command\r | |
155 | if (FeaturePcdGet (PcdSataSiI3132FeaturePMPSupport)) {\r | |
156 | SataPort->HostPRB->Fis.Control |= PortMultiplierPort & 0xFF;\r | |
157 | }\r | |
158 | break;\r | |
159 | case EFI_ATA_PASS_THRU_PROTOCOL_DMA:\r | |
160 | ASSERT (0); //TODO: Implement me!\r | |
161 | break;\r | |
162 | case EFI_ATA_PASS_THRU_PROTOCOL_DMA_QUEUED:\r | |
163 | ASSERT (0); //TODO: Implement me!\r | |
164 | break;\r | |
165 | case EFI_ATA_PASS_THRU_PROTOCOL_DEVICE_DIAGNOSTIC:\r | |
166 | ASSERT (0); //TODO: Implement me!\r | |
167 | break;\r | |
168 | case EFI_ATA_PASS_THRU_PROTOCOL_DEVICE_RESET:\r | |
169 | ASSERT (0); //TODO: Implement me!\r | |
170 | break;\r | |
171 | case EFI_ATA_PASS_THRU_PROTOCOL_FPDMA:\r | |
172 | ASSERT (0); //TODO: Implement me!\r | |
173 | break;\r | |
174 | case EFI_ATA_PASS_THRU_PROTOCOL_RETURN_RESPONSE:\r | |
175 | ASSERT (0); //TODO: Implement me!\r | |
176 | break;\r | |
177 | default:\r | |
178 | ASSERT (0);\r | |
179 | break;\r | |
180 | }\r | |
181 | \r | |
182 | SataPort->HostPRB->Control = Control;\r | |
183 | SataPort->HostPRB->ProtocolOverride = Protocol;\r | |
184 | \r | |
185 | // Clear IRQ\r | |
186 | SATA_PORT_WRITE32 (SataPort->RegBase + SII3132_PORT_INTSTATUS_REG, IrqMask);\r | |
187 | \r | |
188 | if (!FeaturePcdGet (PcdSataSiI3132FeatureDirectCommandIssuing)) {\r | |
189 | // Indirect Command Issuance\r | |
190 | \r | |
191 | //TODO: Find which slot is free (maybe use the Cmd FIFO)\r | |
192 | //SATA_PORT_READ32 (SataPort->RegBase + SII3132_PORT_CMDEXECFIFO_REG, &EmptySlot);\r | |
193 | \r | |
194 | SATA_PORT_WRITE32 (SataPort->RegBase + SII3132_PORT_CMDACTIV_REG + (EmptySlot * 8),\r | |
195 | (UINT32)(SataPort->PhysAddrHostPRB & 0xFFFFFFFF));\r | |
196 | SATA_PORT_WRITE32 (SataPort->RegBase + SII3132_PORT_CMDACTIV_REG + (EmptySlot * 8) + 4,\r | |
197 | (UINT32)((SataPort->PhysAddrHostPRB >> 32) & 0xFFFFFFFF));\r | |
198 | } else {\r | |
199 | // Direct Command Issuance\r | |
200 | Status = PciIo->Mem.Write (PciIo, EfiPciIoWidthUint32, 1, // Bar 1\r | |
201 | SataPort->RegBase + (EmptySlot * 0x80),\r | |
202 | sizeof (SATA_SI3132_PRB) / 4,\r | |
203 | SataPort->HostPRB);\r | |
204 | ASSERT_EFI_ERROR (Status);\r | |
205 | \r | |
206 | SATA_PORT_WRITE32 (SataPort->RegBase + SII3132_PORT_CMDEXECFIFO_REG, EmptySlot);\r | |
207 | }\r | |
208 | \r | |
209 | #if 0\r | |
210 | // Could need to be implemented if we run multiple command in parallel to know which slot has been completed\r | |
211 | SATA_PORT_READ32 (SataPort->RegBase + SII3132_PORT_SLOTSTATUS_REG, &Value32);\r | |
212 | Timeout = Packet->Timeout;\r | |
213 | while (!Timeout && !Value32) {\r | |
214 | gBS->Stall (1);\r | |
215 | SATA_PORT_READ32 (SataPort->RegBase + SII3132_PORT_SLOTSTATUS_REG, &Value32);\r | |
216 | Timeout--;\r | |
217 | }\r | |
218 | #else\r | |
219 | SATA_PORT_READ32 (SataPort->RegBase + SII3132_PORT_INTSTATUS_REG, &Value32);\r | |
220 | if (!Packet->Timeout) {\r | |
221 | while (!(Value32 & IrqMask)) {\r | |
222 | gBS->Stall (1);\r | |
223 | SATA_PORT_READ32 (SataPort->RegBase + SII3132_PORT_INTSTATUS_REG, &Value32);\r | |
224 | }\r | |
225 | } else {\r | |
226 | Timeout = Packet->Timeout;\r | |
227 | while (Timeout && !(Value32 & IrqMask)) {\r | |
228 | gBS->Stall (1);\r | |
229 | SATA_PORT_READ32 (SataPort->RegBase + SII3132_PORT_INTSTATUS_REG, &Value32);\r | |
230 | Timeout--;\r | |
231 | }\r | |
232 | }\r | |
233 | #endif\r | |
234 | // Fill Packet Ata Status Block\r | |
235 | Status = PciIo->Mem.Read (PciIo, EfiPciIoWidthUint32, 1, // Bar 1\r | |
236 | SataPort->RegBase + 0x08,\r | |
237 | sizeof (EFI_ATA_STATUS_BLOCK) / 4,\r | |
238 | Packet->Asb);\r | |
239 | ASSERT_EFI_ERROR (Status);\r | |
240 | \r | |
241 | \r | |
242 | if ((Packet->Timeout != 0) && (Timeout == 0)) {\r | |
243 | DEBUG ((EFI_D_ERROR, "SiI3132AtaPassThru() Err:Timeout\n"));\r | |
244 | //ASSERT (0);\r | |
245 | return EFI_TIMEOUT;\r | |
246 | } else if (Value32 & (SII3132_PORT_INT_CMDERR << 16)) {\r | |
247 | SATA_PORT_READ32 (SataPort->RegBase + SII3132_PORT_CMDERROR_REG, &Error);\r | |
248 | DEBUG ((EFI_D_ERROR, "SiI3132AtaPassThru() CmdErr:0x%X (SiI3132 Err:0x%X)\n", Value32, Error));\r | |
249 | ASSERT (0);\r | |
250 | return EFI_DEVICE_ERROR;\r | |
251 | } else if (Value32 & (SII3132_PORT_INT_CMDCOMPL << 16)) {\r | |
252 | // Clear Command Complete\r | |
253 | SATA_PORT_WRITE32 (SataPort->RegBase + SII3132_PORT_INTSTATUS_REG, SII3132_PORT_INT_CMDCOMPL << 16);\r | |
254 | \r | |
255 | if (PciAllocMapping) {\r | |
256 | Status = PciIo->Unmap (PciIo, PciAllocMapping);\r | |
257 | ASSERT (!EFI_ERROR (Status));\r | |
258 | }\r | |
259 | \r | |
260 | // If the command was ATA_CMD_IDENTIFY_DRIVE then we need to update the BlockSize\r | |
261 | if (Packet->Acb->AtaCommand == ATA_CMD_IDENTIFY_DRIVE) {\r | |
262 | ATA_IDENTIFY_DATA *IdentifyData = (ATA_IDENTIFY_DATA*)Packet->InDataBuffer;\r | |
263 | \r | |
264 | // Get the corresponding Block Device\r | |
265 | SataDevice = GetSataDevice (SataSiI3132Instance, SataPort->Index, PortMultiplierPort);\r | |
266 | \r | |
267 | // Check logical block size\r | |
268 | if ((IdentifyData->phy_logic_sector_support & BIT12) != 0) {\r | |
269 | ASSERT (SataDevice != NULL);\r | |
270 | SataDevice->BlockSize = (UINT32) (((IdentifyData->logic_sector_size_hi << 16) |\r | |
271 | IdentifyData->logic_sector_size_lo) * sizeof (UINT16));\r | |
272 | } else {\r | |
273 | SataDevice->BlockSize = 0x200;\r | |
274 | }\r | |
275 | }\r | |
276 | return EFI_SUCCESS;\r | |
277 | } else {\r | |
278 | ASSERT (0);\r | |
279 | return EFI_DEVICE_ERROR;\r | |
280 | }\r | |
281 | }\r | |
282 | \r | |
283 | /**\r | |
284 | Sends an ATA command to an ATA device that is attached to the ATA controller. This function\r | |
285 | supports both blocking I/O and non-blocking I/O. The blocking I/O functionality is required,\r | |
286 | and the non-blocking I/O functionality is optional.\r | |
287 | \r | |
288 | @param[in] This A pointer to the EFI_ATA_PASS_THRU_PROTOCOL instance.\r | |
289 | @param[in] Port The port number of the ATA device to send the command.\r | |
290 | @param[in] PortMultiplierPort The port multiplier port number of the ATA device to send the command.\r | |
291 | If there is no port multiplier, then specify 0.\r | |
292 | @param[in,out] Packet A pointer to the ATA command to send to the ATA device specified by Port\r | |
293 | and PortMultiplierPort.\r | |
294 | @param[in] Event If non-blocking I/O is not supported then Event is ignored, and blocking\r | |
295 | I/O is performed. If Event is NULL, then blocking I/O is performed. If\r | |
296 | Event is not NULL and non blocking I/O is supported, then non-blocking\r | |
297 | I/O is performed, and Event will be signaled when the ATA command completes.\r | |
298 | \r | |
299 | @retval EFI_SUCCESS The ATA command was sent by the host. For bi-directional commands,\r | |
300 | InTransferLength bytes were transferred from InDataBuffer. For write and\r | |
301 | bi-directional commands, OutTransferLength bytes were transferred by OutDataBuffer.\r | |
302 | @retval EFI_BAD_BUFFER_SIZE The ATA command was not executed. The number of bytes that could be transferred\r | |
303 | is returned in InTransferLength. For write and bi-directional commands,\r | |
304 | OutTransferLength bytes were transferred by OutDataBuffer.\r | |
305 | @retval EFI_NOT_READY The ATA command could not be sent because there are too many ATA commands\r | |
306 | already queued. The caller may retry again later.\r | |
307 | @retval EFI_DEVICE_ERROR A device error occurred while attempting to send the ATA command.\r | |
308 | @retval EFI_INVALID_PARAMETER Port, PortMultiplierPort, or the contents of Acb are invalid. The ATA\r | |
309 | command was not sent, so no additional status information is available.\r | |
310 | \r | |
311 | **/\r | |
312 | EFI_STATUS\r | |
313 | SiI3132AtaPassThru (\r | |
314 | IN EFI_ATA_PASS_THRU_PROTOCOL *This,\r | |
315 | IN UINT16 Port,\r | |
316 | IN UINT16 PortMultiplierPort,\r | |
317 | IN OUT EFI_ATA_PASS_THRU_COMMAND_PACKET *Packet,\r | |
318 | IN EFI_EVENT Event OPTIONAL\r | |
319 | )\r | |
320 | {\r | |
321 | SATA_SI3132_INSTANCE *SataSiI3132Instance;\r | |
322 | SATA_SI3132_DEVICE *SataDevice;\r | |
323 | SATA_SI3132_PORT *SataPort;\r | |
324 | \r | |
325 | SataSiI3132Instance = INSTANCE_FROM_ATAPASSTHRU_THIS (This);\r | |
326 | if (!SataSiI3132Instance) {\r | |
327 | return EFI_INVALID_PARAMETER;\r | |
328 | }\r | |
329 | \r | |
330 | SataDevice = GetSataDevice (SataSiI3132Instance, Port, PortMultiplierPort);\r | |
331 | if (!SataDevice) {\r | |
332 | return EFI_INVALID_PARAMETER;\r | |
333 | }\r | |
334 | SataPort = SataDevice->Port;\r | |
335 | \r | |
336 | DEBUG ((EFI_D_INFO, "SiI3132AtaPassThru(%d,%d) : AtaCmd:0x%X Prot:%d\n", Port, PortMultiplierPort,\r | |
337 | Packet->Acb->AtaCommand, Packet->Protocol));\r | |
338 | \r | |
339 | return SiI3132AtaPassThruCommand (SataSiI3132Instance, SataPort, PortMultiplierPort, Packet, Event);\r | |
340 | }\r | |
341 | \r | |
342 | /**\r | |
343 | Used to retrieve the list of legal port numbers for ATA devices on an ATA controller.\r | |
344 | These can either be the list of ports where ATA devices are actually present or the\r | |
345 | list of legal port numbers for the ATA controller. Regardless, the caller of this\r | |
346 | function must probe the port number returned to see if an ATA device is actually\r | |
347 | present at that location on the ATA controller.\r | |
348 | \r | |
349 | The GetNextPort() function retrieves the port number on an ATA controller. If on input\r | |
350 | Port is 0xFFFF, then the port number of the first port on the ATA controller is returned\r | |
351 | in Port and EFI_SUCCESS is returned.\r | |
352 | \r | |
353 | If Port is a port number that was returned on a previous call to GetNextPort(), then the\r | |
354 | port number of the next port on the ATA controller is returned in Port, and EFI_SUCCESS\r | |
355 | is returned. If Port is not 0xFFFF and Port was not returned on a previous call to\r | |
356 | GetNextPort(), then EFI_INVALID_PARAMETER is returned.\r | |
357 | \r | |
358 | If Port is the port number of the last port on the ATA controller, then EFI_NOT_FOUND is\r | |
359 | returned.\r | |
360 | \r | |
361 | @param[in] This A pointer to the EFI_ATA_PASS_THRU_PROTOCOL instance.\r | |
362 | @param[in,out] Port On input, a pointer to the port number on the ATA controller.\r | |
363 | On output, a pointer to the next port number on the ATA\r | |
364 | controller. An input value of 0xFFFF retrieves the first port\r | |
365 | number on the ATA controller.\r | |
366 | \r | |
367 | @retval EFI_SUCCESS The next port number on the ATA controller was returned in Port.\r | |
368 | @retval EFI_NOT_FOUND There are no more ports on this ATA controller.\r | |
369 | @retval EFI_INVALID_PARAMETER Port is not 0xFFFF and Port was not returned on a previous call\r | |
370 | to GetNextPort().\r | |
371 | \r | |
372 | **/\r | |
373 | EFI_STATUS\r | |
374 | SiI3132GetNextPort (\r | |
375 | IN EFI_ATA_PASS_THRU_PROTOCOL *This,\r | |
376 | IN OUT UINT16 *Port\r | |
377 | )\r | |
378 | {\r | |
379 | SATA_SI3132_INSTANCE *SataSiI3132Instance;\r | |
380 | UINTN PrevPort;\r | |
381 | EFI_STATUS Status = EFI_SUCCESS;\r | |
382 | \r | |
383 | SataSiI3132Instance = INSTANCE_FROM_ATAPASSTHRU_THIS (This);\r | |
384 | if (!SataSiI3132Instance) {\r | |
385 | return EFI_INVALID_PARAMETER;\r | |
386 | }\r | |
387 | \r | |
388 | PrevPort = *Port;\r | |
389 | \r | |
390 | if (PrevPort == 0xFFFF) {\r | |
391 | *Port = 0;\r | |
392 | } else {\r | |
393 | if (PrevPort < SATA_SII3132_MAXPORT) {\r | |
394 | *Port = PrevPort + 1;\r | |
395 | } else {\r | |
396 | Status = EFI_NOT_FOUND;\r | |
397 | }\r | |
398 | }\r | |
399 | return Status;\r | |
400 | }\r | |
401 | \r | |
402 | /**\r | |
403 | Used to retrieve the list of legal port multiplier port numbers for ATA devices on a port of an ATA\r | |
404 | controller. These can either be the list of port multiplier ports where ATA devices are actually\r | |
405 | present on port or the list of legal port multiplier ports on that port. Regardless, the caller of this\r | |
406 | function must probe the port number and port multiplier port number returned to see if an ATA\r | |
407 | device is actually present.\r | |
408 | \r | |
409 | The GetNextDevice() function retrieves the port multiplier port number of an ATA device\r | |
410 | present on a port of an ATA controller.\r | |
411 | \r | |
412 | If PortMultiplierPort points to a port multiplier port number value that was returned on a\r | |
413 | previous call to GetNextDevice(), then the port multiplier port number of the next ATA device\r | |
414 | on the port of the ATA controller is returned in PortMultiplierPort, and EFI_SUCCESS is\r | |
415 | returned.\r | |
416 | \r | |
417 | If PortMultiplierPort points to 0xFFFF, then the port multiplier port number of the first\r | |
418 | ATA device on port of the ATA controller is returned in PortMultiplierPort and\r | |
419 | EFI_SUCCESS is returned.\r | |
420 | \r | |
421 | If PortMultiplierPort is not 0xFFFF and the value pointed to by PortMultiplierPort\r | |
422 | was not returned on a previous call to GetNextDevice(), then EFI_INVALID_PARAMETER\r | |
423 | is returned.\r | |
424 | \r | |
425 | If PortMultiplierPort is the port multiplier port number of the last ATA device on the port of\r | |
426 | the ATA controller, then EFI_NOT_FOUND is returned.\r | |
427 | \r | |
428 | @param[in] This A pointer to the EFI_ATA_PASS_THRU_PROTOCOL instance.\r | |
429 | @param[in] Port The port number present on the ATA controller.\r | |
430 | @param[in,out] PortMultiplierPort On input, a pointer to the port multiplier port number of an\r | |
431 | ATA device present on the ATA controller.\r | |
432 | If on input a PortMultiplierPort of 0xFFFF is specified,\r | |
433 | then the port multiplier port number of the first ATA device\r | |
434 | is returned. On output, a pointer to the port multiplier port\r | |
435 | number of the next ATA device present on an ATA controller.\r | |
436 | \r | |
437 | @retval EFI_SUCCESS The port multiplier port number of the next ATA device on the port\r | |
438 | of the ATA controller was returned in PortMultiplierPort.\r | |
439 | @retval EFI_NOT_FOUND There are no more ATA devices on this port of the ATA controller.\r | |
440 | @retval EFI_INVALID_PARAMETER PortMultiplierPort is not 0xFFFF, and PortMultiplierPort was not\r | |
441 | returned on a previous call to GetNextDevice().\r | |
442 | \r | |
443 | **/\r | |
444 | EFI_STATUS\r | |
445 | SiI3132GetNextDevice (\r | |
446 | IN EFI_ATA_PASS_THRU_PROTOCOL *This,\r | |
447 | IN UINT16 Port,\r | |
448 | IN OUT UINT16 *PortMultiplierPort\r | |
449 | )\r | |
450 | {\r | |
451 | SATA_SI3132_INSTANCE *SataSiI3132Instance;\r | |
452 | SATA_SI3132_PORT *SataPort;\r | |
453 | SATA_SI3132_DEVICE *SataDevice;\r | |
454 | LIST_ENTRY *List;\r | |
455 | EFI_STATUS Status = EFI_SUCCESS;\r | |
456 | \r | |
457 | SataSiI3132Instance = INSTANCE_FROM_ATAPASSTHRU_THIS (This);\r | |
458 | if (!SataSiI3132Instance) {\r | |
459 | return EFI_INVALID_PARAMETER;\r | |
460 | }\r | |
461 | \r | |
462 | if (Port >= SATA_SII3132_MAXPORT) {\r | |
463 | return EFI_INVALID_PARAMETER;\r | |
464 | }\r | |
465 | \r | |
466 | SataPort = &(SataSiI3132Instance->Ports[Port]);\r | |
467 | \r | |
468 | if (*PortMultiplierPort == 0xFFFF) {\r | |
469 | List = SataPort->Devices.ForwardLink;\r | |
470 | if (List != &SataPort->Devices) {\r | |
471 | // The list is not empty, return the first device\r | |
472 | *PortMultiplierPort = ((SATA_SI3132_DEVICE*)List)->Index;\r | |
473 | } else {\r | |
474 | Status = EFI_NOT_FOUND;\r | |
475 | }\r | |
476 | } else {\r | |
477 | SataDevice = GetSataDevice (SataSiI3132Instance, Port, *PortMultiplierPort);\r | |
478 | if (SataDevice != NULL) {\r | |
479 | // We have found the previous port multiplier, return the next one\r | |
480 | List = SataDevice->Link.ForwardLink;\r | |
481 | if (List != &SataPort->Devices) {\r | |
482 | *PortMultiplierPort = ((SATA_SI3132_DEVICE*)List)->Index;\r | |
483 | } else {\r | |
484 | Status = EFI_NOT_FOUND;\r | |
485 | }\r | |
486 | } else {\r | |
487 | Status = EFI_NOT_FOUND;\r | |
488 | }\r | |
489 | }\r | |
490 | return Status;\r | |
491 | }\r | |
492 | \r | |
493 | /**\r | |
494 | Used to allocate and build a device path node for an ATA device on an ATA controller.\r | |
495 | \r | |
496 | The BuildDevicePath() function allocates and builds a single device node for the ATA\r | |
497 | device specified by Port and PortMultiplierPort. If the ATA device specified by Port and\r | |
498 | PortMultiplierPort is not present on the ATA controller, then EFI_NOT_FOUND is returned.\r | |
499 | If DevicePath is NULL, then EFI_INVALID_PARAMETER is returned. If there are not enough\r | |
500 | resources to allocate the device path node, then EFI_OUT_OF_RESOURCES is returned.\r | |
501 | \r | |
502 | Otherwise, DevicePath is allocated with the boot service AllocatePool(), the contents of\r | |
503 | DevicePath are initialized to describe the ATA device specified by Port and PortMultiplierPort,\r | |
504 | and EFI_SUCCESS is returned.\r | |
505 | \r | |
506 | @param[in] This A pointer to the EFI_ATA_PASS_THRU_PROTOCOL instance.\r | |
507 | @param[in] Port Port specifies the port number of the ATA device for which a\r | |
508 | device path node is to be allocated and built.\r | |
509 | @param[in] PortMultiplierPort The port multiplier port number of the ATA device for which a\r | |
510 | device path node is to be allocated and built. If there is no\r | |
511 | port multiplier, then specify 0.\r | |
512 | @param[in,out] DevicePath A pointer to a single device path node that describes the ATA\r | |
513 | device specified by Port and PortMultiplierPort. This function\r | |
514 | is responsible for allocating the buffer DevicePath with the\r | |
515 | boot service AllocatePool(). It is the caller's responsibility\r | |
516 | to free DevicePath when the caller is finished with DevicePath.\r | |
517 | @retval EFI_SUCCESS The device path node that describes the ATA device specified by\r | |
518 | Port and PortMultiplierPort was allocated and returned in DevicePath.\r | |
519 | @retval EFI_NOT_FOUND The ATA device specified by Port and PortMultiplierPort does not\r | |
520 | exist on the ATA controller.\r | |
521 | @retval EFI_INVALID_PARAMETER DevicePath is NULL.\r | |
522 | @retval EFI_OUT_OF_RESOURCES There are not enough resources to allocate DevicePath.\r | |
523 | \r | |
524 | **/\r | |
525 | EFI_STATUS\r | |
526 | SiI3132BuildDevicePath (\r | |
527 | IN EFI_ATA_PASS_THRU_PROTOCOL *This,\r | |
528 | IN UINT16 Port,\r | |
529 | IN UINT16 PortMultiplierPort,\r | |
530 | IN OUT EFI_DEVICE_PATH_PROTOCOL **DevicePath\r | |
531 | )\r | |
532 | {\r | |
533 | SATA_SI3132_INSTANCE *SataSiI3132Instance;\r | |
534 | SATA_SI3132_DEVICE *SataDevice;\r | |
535 | EFI_DEVICE_PATH_PROTOCOL *SiI3132DevicePath;\r | |
536 | \r | |
537 | SATA_TRACE ("SiI3132BuildDevicePath()");\r | |
538 | \r | |
539 | SataSiI3132Instance = INSTANCE_FROM_ATAPASSTHRU_THIS (This);\r | |
540 | if (!SataSiI3132Instance) {\r | |
541 | return EFI_INVALID_PARAMETER;\r | |
542 | }\r | |
543 | \r | |
544 | SataDevice = GetSataDevice (SataSiI3132Instance, Port, PortMultiplierPort);\r | |
545 | if (SataDevice == NULL) {\r | |
546 | return EFI_NOT_FOUND;\r | |
547 | }\r | |
548 | \r | |
549 | SiI3132DevicePath = CreateDeviceNode (MESSAGING_DEVICE_PATH, MSG_SATA_DP, sizeof (SATA_DEVICE_PATH));\r | |
550 | if (SiI3132DevicePath == NULL) {\r | |
551 | return EFI_OUT_OF_RESOURCES;\r | |
552 | }\r | |
553 | \r | |
554 | ((SATA_DEVICE_PATH*)SiI3132DevicePath)->HBAPortNumber = Port;\r | |
555 | if (FeaturePcdGet (PcdSataSiI3132FeaturePMPSupport)) {\r | |
556 | ((SATA_DEVICE_PATH*)SiI3132DevicePath)->PortMultiplierPortNumber = PortMultiplierPort;\r | |
557 | } else {\r | |
558 | //Temp:((SATA_DEVICE_PATH*)SiI3132DevicePath)->PortMultiplierPortNumber = SATA_HBA_DIRECT_CONNECT_FLAG;\r | |
559 | ((SATA_DEVICE_PATH*)SiI3132DevicePath)->PortMultiplierPortNumber = 0;\r | |
560 | }\r | |
561 | ((SATA_DEVICE_PATH*)SiI3132DevicePath)->Lun = Port; //TODO: Search information how to define properly LUN (Logical Unit Number)\r | |
562 | \r | |
563 | *DevicePath = SiI3132DevicePath;\r | |
564 | return EFI_SUCCESS;\r | |
565 | }\r | |
566 | \r | |
567 | /**\r | |
568 | Used to translate a device path node to a port number and port multiplier port number.\r | |
569 | \r | |
570 | The GetDevice() function determines the port and port multiplier port number associated with\r | |
571 | the ATA device described by DevicePath. If DevicePath is a device path node type that the\r | |
572 | ATA Pass Thru driver supports, then the ATA Pass Thru driver will attempt to translate the contents\r | |
573 | DevicePath into a port number and port multiplier port number.\r | |
574 | \r | |
575 | If this translation is successful, then that port number and port multiplier port number are returned\r | |
576 | in Port and PortMultiplierPort, and EFI_SUCCESS is returned.\r | |
577 | \r | |
578 | If DevicePath, Port, or PortMultiplierPort are NULL, then EFI_INVALID_PARAMETER is returned.\r | |
579 | \r | |
580 | If DevicePath is not a device path node type that the ATA Pass Thru driver supports, then\r | |
581 | EFI_UNSUPPORTED is returned.\r | |
582 | \r | |
583 | If DevicePath is a device path node type that the ATA Pass Thru driver supports, but there is not\r | |
584 | a valid translation from DevicePath to a port number and port multiplier port number, then\r | |
585 | EFI_NOT_FOUND is returned.\r | |
586 | \r | |
587 | @param[in] This A pointer to the EFI_ATA_PASS_THRU_PROTOCOL instance.\r | |
588 | @param[in] DevicePath A pointer to the device path node that describes an ATA device on the\r | |
589 | ATA controller.\r | |
590 | @param[out] Port On return, points to the port number of an ATA device on the ATA controller.\r | |
591 | @param[out] PortMultiplierPort On return, points to the port multiplier port number of an ATA device\r | |
592 | on the ATA controller.\r | |
593 | \r | |
594 | @retval EFI_SUCCESS DevicePath was successfully translated to a port number and port multiplier\r | |
595 | port number, and they were returned in Port and PortMultiplierPort.\r | |
596 | @retval EFI_INVALID_PARAMETER DevicePath is NULL.\r | |
597 | @retval EFI_INVALID_PARAMETER Port is NULL.\r | |
598 | @retval EFI_INVALID_PARAMETER PortMultiplierPort is NULL.\r | |
599 | @retval EFI_UNSUPPORTED This driver does not support the device path node type in DevicePath.\r | |
600 | @retval EFI_NOT_FOUND A valid translation from DevicePath to a port number and port multiplier\r | |
601 | port number does not exist.\r | |
602 | **/\r | |
603 | EFI_STATUS\r | |
604 | SiI3132GetDevice (\r | |
605 | IN EFI_ATA_PASS_THRU_PROTOCOL *This,\r | |
606 | IN EFI_DEVICE_PATH_PROTOCOL *DevicePath,\r | |
607 | OUT UINT16 *Port,\r | |
608 | OUT UINT16 *PortMultiplierPort\r | |
609 | )\r | |
610 | {\r | |
611 | SATA_SI3132_INSTANCE *SataSiI3132Instance;\r | |
612 | \r | |
613 | SATA_TRACE ("SiI3132GetDevice()");\r | |
614 | \r | |
615 | if (!DevicePath || !Port || !PortMultiplierPort) {\r | |
616 | return EFI_INVALID_PARAMETER;\r | |
617 | }\r | |
618 | \r | |
619 | if ((DevicePath->Type != MESSAGING_DEVICE_PATH) || (DevicePath->SubType != MSG_SATA_DP)) {\r | |
620 | return EFI_UNSUPPORTED;\r | |
621 | }\r | |
622 | \r | |
623 | SataSiI3132Instance = INSTANCE_FROM_ATAPASSTHRU_THIS (This);\r | |
624 | if (!SataSiI3132Instance) {\r | |
625 | return EFI_INVALID_PARAMETER;\r | |
626 | }\r | |
627 | \r | |
628 | if (((SATA_DEVICE_PATH*)DevicePath)->Lun >= SATA_SII3132_MAXPORT) {\r | |
629 | return EFI_NOT_FOUND;\r | |
630 | }\r | |
631 | \r | |
632 | if (FeaturePcdGet (PcdSataSiI3132FeaturePMPSupport)) {\r | |
633 | ASSERT (0); //TODO: Implement me!\r | |
634 | return EFI_UNSUPPORTED;\r | |
635 | } else {\r | |
636 | *Port = ((SATA_DEVICE_PATH*)DevicePath)->Lun;\r | |
637 | // Return the first Sata Sevice as there should be only one directly connected\r | |
638 | *PortMultiplierPort = ((SATA_SI3132_DEVICE*)SataSiI3132Instance->Ports[*Port].Devices.ForwardLink)->Index;\r | |
639 | return EFI_SUCCESS;\r | |
640 | }\r | |
641 | }\r | |
642 | \r | |
643 | EFI_STATUS\r | |
644 | SiI3132HwResetPort (\r | |
645 | IN SATA_SI3132_PORT *SataPort\r | |
646 | )\r | |
647 | {\r | |
648 | EFI_PCI_IO_PROTOCOL *PciIo;\r | |
649 | UINT32 Value32;\r | |
650 | UINTN Timeout;\r | |
651 | \r | |
652 | SATA_TRACE ("SiI3132HwResetPort()");\r | |
653 | \r | |
654 | PciIo = SataPort->Instance->PciIo;\r | |
655 | \r | |
656 | // Clear Port Reset\r | |
657 | SATA_PORT_WRITE32 (SataPort->RegBase + SII3132_PORT_CONTROLCLEAR_REG, SII3132_PORT_CONTROL_RESET);\r | |
658 | \r | |
659 | SATA_PORT_READ32 (SataPort->RegBase + SII3132_PORT_STATUS_REG, &Value32);\r | |
660 | ASSERT (!(Value32 & SII3132_PORT_CONTROL_RESET));\r | |
661 | \r | |
662 | // Initialize error counters\r | |
663 | SATA_PORT_WRITE32 (SataPort->RegBase + SII3132_PORT_ERRCOUNTDECODE, 0);\r | |
664 | SATA_PORT_WRITE32 (SataPort->RegBase + SII3132_PORT_ERRCOUNTCRC, 0);\r | |
665 | SATA_PORT_WRITE32 (SataPort->RegBase + SII3132_PORT_ERRCOUNTHANDSHAKE, 0);\r | |
666 | \r | |
667 | // Enable interrupts for command completion and command errors\r | |
668 | SATA_PORT_WRITE32 (SataPort->RegBase + SII3132_PORT_ENABLEINT_REG, SII3132_PORT_INT_CMDCOMPL | SII3132_PORT_INT_CMDERR);\r | |
669 | \r | |
670 | // Clear IRQ\r | |
671 | SATA_PORT_WRITE32 (SataPort->RegBase + SII3132_PORT_ENABLEINT_REG, SII3132_PORT_INT_CMDCOMPL | SII3132_PORT_INT_CMDERR | SII3132_PORT_INT_PORTRDY | (1 << 3));\r | |
672 | \r | |
673 | // Wait until Port Ready\r | |
674 | SATA_PORT_READ32 (SataPort->RegBase + SII3132_PORT_INTSTATUS_REG, &Value32);\r | |
675 | Timeout = 1000;\r | |
676 | while ((Timeout > 0) && ((Value32 & SII3132_PORT_INT_PORTRDY) == 0)) {\r | |
677 | gBS->Stall (1);\r | |
678 | Timeout--;\r | |
679 | SATA_PORT_READ32 (SataPort->RegBase + SII3132_PORT_INTSTATUS_REG, &Value32);\r | |
680 | }\r | |
681 | // Clear IRQ\r | |
682 | SATA_PORT_WRITE32 (SataPort->RegBase + SII3132_PORT_INTSTATUS_REG, SII3132_PORT_INT_PORTRDY);\r | |
683 | \r | |
684 | if (Timeout == 0) {\r | |
685 | SATA_TRACE ("SiI3132HwResetPort(): Timeout");\r | |
686 | return EFI_TIMEOUT;\r | |
687 | } else if ((Value32 & SII3132_PORT_INT_PORTRDY) == 0) {\r | |
688 | SATA_TRACE ("SiI3132HwResetPort(): Port Not Ready");\r | |
689 | return EFI_DEVICE_ERROR;\r | |
690 | } else {\r | |
691 | return EFI_SUCCESS;\r | |
692 | }\r | |
693 | }\r | |
694 | \r | |
695 | /**\r | |
696 | Resets a specific port on the ATA controller. This operation also resets all the ATA devices\r | |
697 | connected to the port.\r | |
698 | \r | |
699 | The ResetChannel() function resets an a specific port on an ATA controller. This operation\r | |
700 | resets all the ATA devices connected to that port. If this ATA controller does not support\r | |
701 | a reset port operation, then EFI_UNSUPPORTED is returned.\r | |
702 | \r | |
703 | If a device error occurs while executing that port reset operation, then EFI_DEVICE_ERROR is\r | |
704 | returned.\r | |
705 | \r | |
706 | If a timeout occurs during the execution of the port reset operation, then EFI_TIMEOUT is returned.\r | |
707 | \r | |
708 | If the port reset operation is completed, then EFI_SUCCESS is returned.\r | |
709 | \r | |
710 | @param[in] This A pointer to the EFI_ATA_PASS_THRU_PROTOCOL instance.\r | |
711 | @param[in] Port The port number on the ATA controller.\r | |
712 | \r | |
713 | @retval EFI_SUCCESS The ATA controller port was reset.\r | |
714 | @retval EFI_UNSUPPORTED The ATA controller does not support a port reset operation.\r | |
715 | @retval EFI_DEVICE_ERROR A device error occurred while attempting to reset the ATA port.\r | |
716 | @retval EFI_TIMEOUT A timeout occurred while attempting to reset the ATA port.\r | |
717 | \r | |
718 | **/\r | |
719 | EFI_STATUS\r | |
720 | SiI3132ResetPort (\r | |
721 | IN EFI_ATA_PASS_THRU_PROTOCOL *This,\r | |
722 | IN UINT16 Port\r | |
723 | )\r | |
724 | {\r | |
725 | SATA_SI3132_INSTANCE *SataSiI3132Instance;\r | |
726 | SATA_SI3132_PORT *SataPort;\r | |
727 | \r | |
728 | SATA_TRACE ("SiI3132ResetPort()");\r | |
729 | \r | |
730 | SataSiI3132Instance = INSTANCE_FROM_ATAPASSTHRU_THIS (This);\r | |
731 | if (!SataSiI3132Instance) {\r | |
732 | return EFI_INVALID_PARAMETER;\r | |
733 | }\r | |
734 | \r | |
735 | if (Port >= SATA_SII3132_MAXPORT) {\r | |
736 | return EFI_UNSUPPORTED;\r | |
737 | }\r | |
738 | \r | |
739 | SataPort = &(SataSiI3132Instance->Ports[Port]);\r | |
740 | return SiI3132HwResetPort (SataPort);\r | |
741 | }\r | |
742 | \r | |
743 | /**\r | |
744 | Resets an ATA device that is connected to an ATA controller.\r | |
745 | \r | |
746 | The ResetDevice() function resets the ATA device specified by Port and PortMultiplierPort.\r | |
747 | If this ATA controller does not support a device reset operation, then EFI_UNSUPPORTED is\r | |
748 | returned.\r | |
749 | \r | |
750 | If Port or PortMultiplierPort are not in a valid range for this ATA controller, then\r | |
751 | EFI_INVALID_PARAMETER is returned.\r | |
752 | \r | |
753 | If a device error occurs while executing that device reset operation, then EFI_DEVICE_ERROR\r | |
754 | is returned.\r | |
755 | \r | |
756 | If a timeout occurs during the execution of the device reset operation, then EFI_TIMEOUT is\r | |
757 | returned.\r | |
758 | \r | |
759 | If the device reset operation is completed, then EFI_SUCCESS is returned.\r | |
760 | \r | |
761 | @param[in] This A pointer to the EFI_ATA_PASS_THRU_PROTOCOL instance.\r | |
762 | @param[in] Port Port represents the port number of the ATA device to be reset.\r | |
763 | @param[in] PortMultiplierPort The port multiplier port number of the ATA device to reset.\r | |
764 | If there is no port multiplier, then specify 0.\r | |
765 | @retval EFI_SUCCESS The ATA device specified by Port and PortMultiplierPort was reset.\r | |
766 | @retval EFI_UNSUPPORTED The ATA controller does not support a device reset operation.\r | |
767 | @retval EFI_INVALID_PARAMETER Port or PortMultiplierPort are invalid.\r | |
768 | @retval EFI_DEVICE_ERROR A device error occurred while attempting to reset the ATA device\r | |
769 | specified by Port and PortMultiplierPort.\r | |
770 | @retval EFI_TIMEOUT A timeout occurred while attempting to reset the ATA device\r | |
771 | specified by Port and PortMultiplierPort.\r | |
772 | \r | |
773 | **/\r | |
774 | EFI_STATUS\r | |
775 | SiI3132ResetDevice (\r | |
776 | IN EFI_ATA_PASS_THRU_PROTOCOL *This,\r | |
777 | IN UINT16 Port,\r | |
778 | IN UINT16 PortMultiplierPort\r | |
779 | )\r | |
780 | {\r | |
781 | EFI_PCI_IO_PROTOCOL *PciIo;\r | |
782 | SATA_SI3132_INSTANCE *SataSiI3132Instance;\r | |
783 | SATA_SI3132_PORT *SataPort;\r | |
784 | SATA_SI3132_DEVICE *SataDevice;\r | |
785 | UINTN Timeout;\r | |
786 | UINT32 Value32;\r | |
787 | \r | |
788 | SATA_TRACE ("SiI3132ResetDevice()");\r | |
789 | \r | |
790 | SataSiI3132Instance = INSTANCE_FROM_ATAPASSTHRU_THIS (This);\r | |
791 | if (!SataSiI3132Instance) {\r | |
792 | return EFI_INVALID_PARAMETER;\r | |
793 | }\r | |
794 | \r | |
795 | PciIo = SataSiI3132Instance->PciIo;\r | |
796 | \r | |
797 | SataDevice = GetSataDevice (SataSiI3132Instance, Port, PortMultiplierPort);\r | |
798 | if (!SataDevice) {\r | |
799 | return EFI_INVALID_PARAMETER;\r | |
800 | }\r | |
801 | SataPort = SataDevice->Port;\r | |
802 | \r | |
803 | SATA_PORT_WRITE32 (SataPort->RegBase + SII3132_PORT_CONTROLSET_REG, SII3132_PORT_DEVICE_RESET);\r | |
804 | \r | |
805 | Timeout = 100;\r | |
806 | SATA_PORT_READ32 (SataPort->RegBase + SII3132_PORT_STATUS_REG, &Value32);\r | |
807 | while ((Timeout > 0) && ((Value32 & SII3132_PORT_DEVICE_RESET) != 0)) {\r | |
808 | gBS->Stall (1);\r | |
809 | SATA_PORT_READ32 (SataPort->RegBase + SII3132_PORT_STATUS_REG, &Value32);\r | |
810 | Timeout--;\r | |
811 | }\r | |
812 | \r | |
813 | if (Timeout == 0) {\r | |
814 | SATA_TRACE ("SiI3132ResetDevice(): Timeout");\r | |
815 | return EFI_TIMEOUT;\r | |
816 | } else {\r | |
817 | return EFI_SUCCESS;\r | |
818 | }\r | |
819 | }\r |