]>
Commit | Line | Data |
---|---|---|
1 | /** @file\r | |
2 | PTP (Platform TPM Profile) CRB (Command Response Buffer) interface used by dTPM2.0 library.\r | |
3 | \r | |
4 | Copyright (c) 2015 - 2016, Intel Corporation. All rights reserved.<BR>\r | |
5 | This program and the accompanying materials\r | |
6 | are licensed and made available under the terms and conditions of the BSD License\r | |
7 | which accompanies this distribution. The full text of the license may be found at\r | |
8 | http://opensource.org/licenses/bsd-license.php\r | |
9 | \r | |
10 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r | |
11 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r | |
12 | \r | |
13 | **/\r | |
14 | \r | |
15 | #include <IndustryStandard/Tpm20.h>\r | |
16 | \r | |
17 | #include <Library/BaseLib.h>\r | |
18 | #include <Library/BaseMemoryLib.h>\r | |
19 | #include <Library/IoLib.h>\r | |
20 | #include <Library/TimerLib.h>\r | |
21 | #include <Library/DebugLib.h>\r | |
22 | #include <Library/Tpm2DeviceLib.h>\r | |
23 | #include <Library/PcdLib.h>\r | |
24 | \r | |
25 | #include <IndustryStandard/TpmPtp.h>\r | |
26 | #include <IndustryStandard/TpmTis.h>\r | |
27 | \r | |
28 | typedef enum {\r | |
29 | PtpInterfaceTis,\r | |
30 | PtpInterfaceFifo,\r | |
31 | PtpInterfaceCrb,\r | |
32 | PtpInterfaceMax,\r | |
33 | } PTP_INTERFACE_TYPE;\r | |
34 | \r | |
35 | //\r | |
36 | // Execution of the command may take from several seconds to minutes for certain\r | |
37 | // commands, such as key generation.\r | |
38 | //\r | |
39 | #define PTP_TIMEOUT_MAX (90000 * 1000) // 90s\r | |
40 | \r | |
41 | //\r | |
42 | // Max TPM command/reponse length\r | |
43 | //\r | |
44 | #define TPMCMDBUFLENGTH 0x500\r | |
45 | \r | |
46 | /**\r | |
47 | Check whether TPM PTP register exist.\r | |
48 | \r | |
49 | @param[in] Reg Pointer to PTP register.\r | |
50 | \r | |
51 | @retval TRUE TPM PTP exists.\r | |
52 | @retval FALSE TPM PTP is not found.\r | |
53 | **/\r | |
54 | BOOLEAN\r | |
55 | Tpm2IsPtpPresence (\r | |
56 | IN VOID *Reg\r | |
57 | )\r | |
58 | {\r | |
59 | UINT8 RegRead;\r | |
60 | \r | |
61 | RegRead = MmioRead8 ((UINTN)Reg);\r | |
62 | if (RegRead == 0xFF) {\r | |
63 | //\r | |
64 | // No TPM chip\r | |
65 | //\r | |
66 | return FALSE;\r | |
67 | }\r | |
68 | return TRUE;\r | |
69 | }\r | |
70 | \r | |
71 | /**\r | |
72 | Check whether the value of a TPM chip register satisfies the input BIT setting.\r | |
73 | \r | |
74 | @param[in] Register Address port of register to be checked.\r | |
75 | @param[in] BitSet Check these data bits are set.\r | |
76 | @param[in] BitClear Check these data bits are clear.\r | |
77 | @param[in] TimeOut The max wait time (unit MicroSecond) when checking register.\r | |
78 | \r | |
79 | @retval EFI_SUCCESS The register satisfies the check bit.\r | |
80 | @retval EFI_TIMEOUT The register can't run into the expected status in time.\r | |
81 | **/\r | |
82 | EFI_STATUS\r | |
83 | PtpCrbWaitRegisterBits (\r | |
84 | IN UINT32 *Register,\r | |
85 | IN UINT32 BitSet,\r | |
86 | IN UINT32 BitClear,\r | |
87 | IN UINT32 TimeOut\r | |
88 | )\r | |
89 | {\r | |
90 | UINT32 RegRead;\r | |
91 | UINT32 WaitTime;\r | |
92 | \r | |
93 | for (WaitTime = 0; WaitTime < TimeOut; WaitTime += 30){\r | |
94 | RegRead = MmioRead32 ((UINTN)Register);\r | |
95 | if ((RegRead & BitSet) == BitSet && (RegRead & BitClear) == 0) {\r | |
96 | return EFI_SUCCESS;\r | |
97 | }\r | |
98 | MicroSecondDelay (30);\r | |
99 | }\r | |
100 | return EFI_TIMEOUT;\r | |
101 | }\r | |
102 | \r | |
103 | /**\r | |
104 | Get the control of TPM chip.\r | |
105 | \r | |
106 | @param[in] CrbReg Pointer to CRB register.\r | |
107 | \r | |
108 | @retval EFI_SUCCESS Get the control of TPM chip.\r | |
109 | @retval EFI_INVALID_PARAMETER CrbReg is NULL.\r | |
110 | @retval EFI_NOT_FOUND TPM chip doesn't exit.\r | |
111 | @retval EFI_TIMEOUT Can't get the TPM control in time.\r | |
112 | **/\r | |
113 | EFI_STATUS\r | |
114 | PtpCrbRequestUseTpm (\r | |
115 | IN PTP_CRB_REGISTERS_PTR CrbReg\r | |
116 | )\r | |
117 | {\r | |
118 | EFI_STATUS Status;\r | |
119 | \r | |
120 | if (!Tpm2IsPtpPresence (CrbReg)) {\r | |
121 | return EFI_NOT_FOUND;\r | |
122 | }\r | |
123 | \r | |
124 | MmioWrite32((UINTN)&CrbReg->LocalityControl, PTP_CRB_LOCALITY_CONTROL_REQUEST_ACCESS);\r | |
125 | Status = PtpCrbWaitRegisterBits (\r | |
126 | &CrbReg->LocalityStatus,\r | |
127 | PTP_CRB_LOCALITY_STATUS_GRANTED,\r | |
128 | 0,\r | |
129 | PTP_TIMEOUT_A\r | |
130 | );\r | |
131 | return Status;\r | |
132 | }\r | |
133 | \r | |
134 | /**\r | |
135 | Send a command to TPM for execution and return response data.\r | |
136 | \r | |
137 | @param[in] CrbReg TPM register space base address.\r | |
138 | @param[in] BufferIn Buffer for command data.\r | |
139 | @param[in] SizeIn Size of command data.\r | |
140 | @param[in, out] BufferOut Buffer for response data.\r | |
141 | @param[in, out] SizeOut Size of response data.\r | |
142 | \r | |
143 | @retval EFI_SUCCESS Operation completed successfully.\r | |
144 | @retval EFI_BUFFER_TOO_SMALL Response data buffer is too small.\r | |
145 | @retval EFI_DEVICE_ERROR Unexpected device behavior.\r | |
146 | @retval EFI_UNSUPPORTED Unsupported TPM version\r | |
147 | \r | |
148 | **/\r | |
149 | EFI_STATUS\r | |
150 | PtpCrbTpmCommand (\r | |
151 | IN PTP_CRB_REGISTERS_PTR CrbReg,\r | |
152 | IN UINT8 *BufferIn,\r | |
153 | IN UINT32 SizeIn,\r | |
154 | IN OUT UINT8 *BufferOut,\r | |
155 | IN OUT UINT32 *SizeOut\r | |
156 | )\r | |
157 | {\r | |
158 | EFI_STATUS Status;\r | |
159 | UINT32 Index;\r | |
160 | UINT32 TpmOutSize;\r | |
161 | UINT16 Data16;\r | |
162 | UINT32 Data32;\r | |
163 | \r | |
164 | DEBUG_CODE (\r | |
165 | UINTN DebugSize;\r | |
166 | \r | |
167 | DEBUG ((EFI_D_VERBOSE, "PtpCrbTpmCommand Send - "));\r | |
168 | if (SizeIn > 0x100) {\r | |
169 | DebugSize = 0x40;\r | |
170 | } else {\r | |
171 | DebugSize = SizeIn;\r | |
172 | }\r | |
173 | for (Index = 0; Index < DebugSize; Index++) {\r | |
174 | DEBUG ((EFI_D_VERBOSE, "%02x ", BufferIn[Index]));\r | |
175 | }\r | |
176 | if (DebugSize != SizeIn) {\r | |
177 | DEBUG ((EFI_D_VERBOSE, "...... "));\r | |
178 | for (Index = SizeIn - 0x20; Index < SizeIn; Index++) {\r | |
179 | DEBUG ((EFI_D_VERBOSE, "%02x ", BufferIn[Index]));\r | |
180 | }\r | |
181 | }\r | |
182 | DEBUG ((EFI_D_VERBOSE, "\n"));\r | |
183 | );\r | |
184 | TpmOutSize = 0;\r | |
185 | \r | |
186 | //\r | |
187 | // STEP 0:\r | |
188 | // Ready is any time the TPM is ready to receive a command, following a write\r | |
189 | // of 1 by software to Request.cmdReady, as indicated by the Status field\r | |
190 | // being cleared to 0.\r | |
191 | //\r | |
192 | MmioWrite32((UINTN)&CrbReg->CrbControlRequest, PTP_CRB_CONTROL_AREA_REQUEST_COMMAND_READY);\r | |
193 | Status = PtpCrbWaitRegisterBits (\r | |
194 | &CrbReg->CrbControlRequest,\r | |
195 | 0,\r | |
196 | PTP_CRB_CONTROL_AREA_REQUEST_COMMAND_READY,\r | |
197 | PTP_TIMEOUT_C\r | |
198 | );\r | |
199 | if (EFI_ERROR (Status)) {\r | |
200 | Status = EFI_DEVICE_ERROR;\r | |
201 | goto Exit;\r | |
202 | }\r | |
203 | Status = PtpCrbWaitRegisterBits (\r | |
204 | &CrbReg->CrbControlStatus,\r | |
205 | 0,\r | |
206 | PTP_CRB_CONTROL_AREA_STATUS_TPM_IDLE,\r | |
207 | PTP_TIMEOUT_C\r | |
208 | );\r | |
209 | if (EFI_ERROR (Status)) {\r | |
210 | Status = EFI_DEVICE_ERROR;\r | |
211 | goto Exit;\r | |
212 | }\r | |
213 | \r | |
214 | //\r | |
215 | // STEP 1:\r | |
216 | // Command Reception occurs following a Ready state between the write of the\r | |
217 | // first byte of a command to the Command Buffer and the receipt of a write\r | |
218 | // of 1 to Start.\r | |
219 | //\r | |
220 | for (Index = 0; Index < SizeIn; Index++) {\r | |
221 | MmioWrite8 ((UINTN)&CrbReg->CrbDataBuffer[Index], BufferIn[Index]);\r | |
222 | }\r | |
223 | MmioWrite32 ((UINTN)&CrbReg->CrbControlCommandAddressHigh, (UINT32)RShiftU64 ((UINTN)CrbReg->CrbDataBuffer, 32));\r | |
224 | MmioWrite32 ((UINTN)&CrbReg->CrbControlCommandAddressLow, (UINT32)(UINTN)CrbReg->CrbDataBuffer);\r | |
225 | MmioWrite32 ((UINTN)&CrbReg->CrbControlCommandSize, sizeof(CrbReg->CrbDataBuffer));\r | |
226 | \r | |
227 | MmioWrite64 ((UINTN)&CrbReg->CrbControlResponseAddrss, (UINT32)(UINTN)CrbReg->CrbDataBuffer);\r | |
228 | MmioWrite32 ((UINTN)&CrbReg->CrbControlResponseSize, sizeof(CrbReg->CrbDataBuffer));\r | |
229 | \r | |
230 | //\r | |
231 | // STEP 2:\r | |
232 | // Command Execution occurs after receipt of a 1 to Start and the TPM\r | |
233 | // clearing Start to 0.\r | |
234 | //\r | |
235 | MmioWrite32((UINTN)&CrbReg->CrbControlStart, PTP_CRB_CONTROL_START);\r | |
236 | Status = PtpCrbWaitRegisterBits (\r | |
237 | &CrbReg->CrbControlStart,\r | |
238 | 0,\r | |
239 | PTP_CRB_CONTROL_START,\r | |
240 | PTP_TIMEOUT_MAX\r | |
241 | );\r | |
242 | if (EFI_ERROR (Status)) {\r | |
243 | Status = EFI_DEVICE_ERROR;\r | |
244 | goto Exit;\r | |
245 | }\r | |
246 | \r | |
247 | //\r | |
248 | // STEP 3:\r | |
249 | // Command Completion occurs after completion of a command (indicated by the\r | |
250 | // TPM clearing TPM_CRB_CTRL_Start_x to 0) and before a write of a 1 by the\r | |
251 | // software to Request.goIdle.\r | |
252 | //\r | |
253 | \r | |
254 | //\r | |
255 | // Get response data header\r | |
256 | //\r | |
257 | for (Index = 0; Index < sizeof (TPM2_RESPONSE_HEADER); Index++) {\r | |
258 | BufferOut[Index] = MmioRead8 ((UINTN)&CrbReg->CrbDataBuffer[Index]);\r | |
259 | }\r | |
260 | DEBUG_CODE (\r | |
261 | DEBUG ((EFI_D_VERBOSE, "PtpCrbTpmCommand ReceiveHeader - "));\r | |
262 | for (Index = 0; Index < sizeof (TPM2_RESPONSE_HEADER); Index++) {\r | |
263 | DEBUG ((EFI_D_VERBOSE, "%02x ", BufferOut[Index]));\r | |
264 | }\r | |
265 | DEBUG ((EFI_D_VERBOSE, "\n"));\r | |
266 | );\r | |
267 | //\r | |
268 | // Check the reponse data header (tag, parasize and returncode)\r | |
269 | //\r | |
270 | CopyMem (&Data16, BufferOut, sizeof (UINT16));\r | |
271 | // TPM2 should not use this RSP_COMMAND\r | |
272 | if (SwapBytes16 (Data16) == TPM_ST_RSP_COMMAND) {\r | |
273 | DEBUG ((EFI_D_ERROR, "TPM2: TPM_ST_RSP error - %x\n", TPM_ST_RSP_COMMAND));\r | |
274 | Status = EFI_UNSUPPORTED;\r | |
275 | goto Exit;\r | |
276 | }\r | |
277 | \r | |
278 | CopyMem (&Data32, (BufferOut + 2), sizeof (UINT32));\r | |
279 | TpmOutSize = SwapBytes32 (Data32);\r | |
280 | if (*SizeOut < TpmOutSize) {\r | |
281 | Status = EFI_BUFFER_TOO_SMALL;\r | |
282 | goto Exit;\r | |
283 | }\r | |
284 | *SizeOut = TpmOutSize;\r | |
285 | //\r | |
286 | // Continue reading the remaining data\r | |
287 | //\r | |
288 | for (Index = sizeof (TPM2_RESPONSE_HEADER); Index < TpmOutSize; Index++) {\r | |
289 | BufferOut[Index] = MmioRead8 ((UINTN)&CrbReg->CrbDataBuffer[Index]);\r | |
290 | }\r | |
291 | Exit:\r | |
292 | DEBUG_CODE (\r | |
293 | DEBUG ((EFI_D_VERBOSE, "PtpCrbTpmCommand Receive - "));\r | |
294 | for (Index = 0; Index < TpmOutSize; Index++) {\r | |
295 | DEBUG ((EFI_D_VERBOSE, "%02x ", BufferOut[Index]));\r | |
296 | }\r | |
297 | DEBUG ((EFI_D_VERBOSE, "\n"));\r | |
298 | );\r | |
299 | \r | |
300 | //\r | |
301 | // STEP 4:\r | |
302 | // Idle is any time TPM_CRB_CTRL_STS_x.Status.goIdle is 1.\r | |
303 | //\r | |
304 | MmioWrite32((UINTN)&CrbReg->CrbControlRequest, PTP_CRB_CONTROL_AREA_REQUEST_GO_IDLE);\r | |
305 | return Status;\r | |
306 | }\r | |
307 | \r | |
308 | /**\r | |
309 | Send a command to TPM for execution and return response data.\r | |
310 | \r | |
311 | @param[in] TisReg TPM register space base address.\r | |
312 | @param[in] BufferIn Buffer for command data.\r | |
313 | @param[in] SizeIn Size of command data.\r | |
314 | @param[in, out] BufferOut Buffer for response data.\r | |
315 | @param[in, out] SizeOut Size of response data.\r | |
316 | \r | |
317 | @retval EFI_SUCCESS Operation completed successfully.\r | |
318 | @retval EFI_BUFFER_TOO_SMALL Response data buffer is too small.\r | |
319 | @retval EFI_DEVICE_ERROR Unexpected device behavior.\r | |
320 | @retval EFI_UNSUPPORTED Unsupported TPM version\r | |
321 | \r | |
322 | **/\r | |
323 | EFI_STATUS\r | |
324 | Tpm2TisTpmCommand (\r | |
325 | IN TIS_PC_REGISTERS_PTR TisReg,\r | |
326 | IN UINT8 *BufferIn,\r | |
327 | IN UINT32 SizeIn,\r | |
328 | IN OUT UINT8 *BufferOut,\r | |
329 | IN OUT UINT32 *SizeOut\r | |
330 | );\r | |
331 | \r | |
332 | /**\r | |
333 | Get the control of TPM chip by sending requestUse command TIS_PC_ACC_RQUUSE\r | |
334 | to ACCESS Register in the time of default TIS_TIMEOUT_A.\r | |
335 | \r | |
336 | @param[in] TisReg Pointer to TIS register.\r | |
337 | \r | |
338 | @retval EFI_SUCCESS Get the control of TPM chip.\r | |
339 | @retval EFI_INVALID_PARAMETER TisReg is NULL.\r | |
340 | @retval EFI_NOT_FOUND TPM chip doesn't exit.\r | |
341 | @retval EFI_TIMEOUT Can't get the TPM control in time.\r | |
342 | **/\r | |
343 | EFI_STATUS\r | |
344 | TisPcRequestUseTpm (\r | |
345 | IN TIS_PC_REGISTERS_PTR TisReg\r | |
346 | );\r | |
347 | \r | |
348 | /**\r | |
349 | Return PTP interface type.\r | |
350 | \r | |
351 | @param[in] Register Pointer to PTP register.\r | |
352 | \r | |
353 | @return PTP interface type.\r | |
354 | **/\r | |
355 | PTP_INTERFACE_TYPE\r | |
356 | Tpm2GetPtpInterface (\r | |
357 | IN VOID *Register\r | |
358 | )\r | |
359 | {\r | |
360 | PTP_CRB_INTERFACE_IDENTIFIER InterfaceId;\r | |
361 | PTP_FIFO_INTERFACE_CAPABILITY InterfaceCapability;\r | |
362 | \r | |
363 | if (!Tpm2IsPtpPresence (Register)) {\r | |
364 | return PtpInterfaceMax;\r | |
365 | }\r | |
366 | //\r | |
367 | // Check interface id\r | |
368 | //\r | |
369 | InterfaceId.Uint32 = MmioRead32 ((UINTN)&((PTP_CRB_REGISTERS *)Register)->InterfaceId);\r | |
370 | InterfaceCapability.Uint32 = MmioRead32 ((UINTN)&((PTP_FIFO_REGISTERS *)Register)->InterfaceCapability);\r | |
371 | \r | |
372 | if ((InterfaceId.Bits.InterfaceType == PTP_INTERFACE_IDENTIFIER_INTERFACE_TYPE_CRB) &&\r | |
373 | (InterfaceId.Bits.InterfaceVersion == PTP_INTERFACE_IDENTIFIER_INTERFACE_VERSION_CRB) &&\r | |
374 | (InterfaceId.Bits.CapCRB != 0)) {\r | |
375 | return PtpInterfaceCrb;\r | |
376 | }\r | |
377 | if ((InterfaceId.Bits.InterfaceType == PTP_INTERFACE_IDENTIFIER_INTERFACE_TYPE_FIFO) &&\r | |
378 | (InterfaceId.Bits.InterfaceVersion == PTP_INTERFACE_IDENTIFIER_INTERFACE_VERSION_FIFO) &&\r | |
379 | (InterfaceId.Bits.CapFIFO != 0) &&\r | |
380 | (InterfaceCapability.Bits.InterfaceVersion == INTERFACE_CAPABILITY_INTERFACE_VERSION_PTP)) {\r | |
381 | return PtpInterfaceFifo;\r | |
382 | }\r | |
383 | return PtpInterfaceTis;\r | |
384 | }\r | |
385 | \r | |
386 | /**\r | |
387 | Dump PTP register information.\r | |
388 | \r | |
389 | @param[in] Register Pointer to PTP register.\r | |
390 | **/\r | |
391 | VOID\r | |
392 | DumpPtpInfo (\r | |
393 | IN VOID *Register\r | |
394 | )\r | |
395 | {\r | |
396 | PTP_CRB_INTERFACE_IDENTIFIER InterfaceId;\r | |
397 | PTP_FIFO_INTERFACE_CAPABILITY InterfaceCapability;\r | |
398 | UINT8 StatusEx;\r | |
399 | UINT16 Vid;\r | |
400 | UINT16 Did;\r | |
401 | UINT8 Rid;\r | |
402 | PTP_INTERFACE_TYPE PtpInterface;\r | |
403 | \r | |
404 | if (!Tpm2IsPtpPresence (Register)) {\r | |
405 | return ;\r | |
406 | }\r | |
407 | \r | |
408 | InterfaceId.Uint32 = MmioRead32 ((UINTN)&((PTP_CRB_REGISTERS *)Register)->InterfaceId);\r | |
409 | InterfaceCapability.Uint32 = MmioRead32 ((UINTN)&((PTP_FIFO_REGISTERS *)Register)->InterfaceCapability);\r | |
410 | StatusEx = MmioRead8 ((UINTN)&((PTP_FIFO_REGISTERS *)Register)->StatusEx);\r | |
411 | \r | |
412 | //\r | |
413 | // Dump InterfaceId Register for PTP\r | |
414 | //\r | |
415 | DEBUG ((EFI_D_INFO, "InterfaceId - 0x%08x\n", InterfaceId.Uint32));\r | |
416 | DEBUG ((EFI_D_INFO, " InterfaceType - 0x%02x\n", InterfaceId.Bits.InterfaceType));\r | |
417 | if (InterfaceId.Bits.InterfaceType != PTP_INTERFACE_IDENTIFIER_INTERFACE_TYPE_TIS) {\r | |
418 | DEBUG ((EFI_D_INFO, " InterfaceVersion - 0x%02x\n", InterfaceId.Bits.InterfaceVersion));\r | |
419 | DEBUG ((EFI_D_INFO, " CapFIFO - 0x%x\n", InterfaceId.Bits.CapFIFO));\r | |
420 | DEBUG ((EFI_D_INFO, " CapCRB - 0x%x\n", InterfaceId.Bits.CapCRB));\r | |
421 | }\r | |
422 | \r | |
423 | //\r | |
424 | // Dump Capability Register for TIS and FIFO\r | |
425 | //\r | |
426 | DEBUG ((EFI_D_INFO, "InterfaceCapability - 0x%08x\n", InterfaceCapability.Uint32));\r | |
427 | if ((InterfaceId.Bits.InterfaceType == PTP_INTERFACE_IDENTIFIER_INTERFACE_TYPE_TIS) ||\r | |
428 | (InterfaceId.Bits.InterfaceType == PTP_INTERFACE_IDENTIFIER_INTERFACE_TYPE_FIFO)) {\r | |
429 | DEBUG ((EFI_D_INFO, " InterfaceVersion - 0x%x\n", InterfaceCapability.Bits.InterfaceVersion));\r | |
430 | }\r | |
431 | \r | |
432 | //\r | |
433 | // Dump StatusEx Register for PTP FIFO\r | |
434 | //\r | |
435 | DEBUG ((EFI_D_INFO, "StatusEx - 0x%02x\n", StatusEx));\r | |
436 | if (InterfaceCapability.Bits.InterfaceVersion == INTERFACE_CAPABILITY_INTERFACE_VERSION_PTP) {\r | |
437 | DEBUG ((EFI_D_INFO, " TpmFamily - 0x%x\n", (StatusEx & PTP_FIFO_STS_EX_TPM_FAMILY) >> PTP_FIFO_STS_EX_TPM_FAMILY_OFFSET));\r | |
438 | }\r | |
439 | \r | |
440 | Vid = 0xFFFF;\r | |
441 | Did = 0xFFFF;\r | |
442 | Rid = 0xFF;\r | |
443 | PtpInterface = Tpm2GetPtpInterface (Register);\r | |
444 | DEBUG ((EFI_D_INFO, "PtpInterface - %x\n", PtpInterface));\r | |
445 | switch (PtpInterface) {\r | |
446 | case PtpInterfaceCrb:\r | |
447 | Vid = MmioRead16 ((UINTN)&((PTP_CRB_REGISTERS *)Register)->Vid);\r | |
448 | Did = MmioRead16 ((UINTN)&((PTP_CRB_REGISTERS *)Register)->Did);\r | |
449 | Rid = (UINT8)InterfaceId.Bits.Rid;\r | |
450 | break;\r | |
451 | case PtpInterfaceFifo:\r | |
452 | case PtpInterfaceTis:\r | |
453 | Vid = MmioRead16 ((UINTN)&((PTP_FIFO_REGISTERS *)Register)->Vid);\r | |
454 | Did = MmioRead16 ((UINTN)&((PTP_FIFO_REGISTERS *)Register)->Did);\r | |
455 | Rid = MmioRead8 ((UINTN)&((PTP_FIFO_REGISTERS *)Register)->Rid);\r | |
456 | break;\r | |
457 | default:\r | |
458 | break;\r | |
459 | }\r | |
460 | DEBUG ((EFI_D_INFO, "VID - 0x%04x\n", Vid));\r | |
461 | DEBUG ((EFI_D_INFO, "DID - 0x%04x\n", Did));\r | |
462 | DEBUG ((EFI_D_INFO, "RID - 0x%02x\n", Rid));\r | |
463 | }\r | |
464 | \r | |
465 | /**\r | |
466 | This service enables the sending of commands to the TPM2.\r | |
467 | \r | |
468 | @param[in] InputParameterBlockSize Size of the TPM2 input parameter block.\r | |
469 | @param[in] InputParameterBlock Pointer to the TPM2 input parameter block.\r | |
470 | @param[in,out] OutputParameterBlockSize Size of the TPM2 output parameter block.\r | |
471 | @param[in] OutputParameterBlock Pointer to the TPM2 output parameter block.\r | |
472 | \r | |
473 | @retval EFI_SUCCESS The command byte stream was successfully sent to the device and a response was successfully received.\r | |
474 | @retval EFI_DEVICE_ERROR The command was not successfully sent to the device or a response was not successfully received from the device.\r | |
475 | @retval EFI_BUFFER_TOO_SMALL The output parameter block is too small.\r | |
476 | **/\r | |
477 | EFI_STATUS\r | |
478 | EFIAPI\r | |
479 | DTpm2SubmitCommand (\r | |
480 | IN UINT32 InputParameterBlockSize,\r | |
481 | IN UINT8 *InputParameterBlock,\r | |
482 | IN OUT UINT32 *OutputParameterBlockSize,\r | |
483 | IN UINT8 *OutputParameterBlock\r | |
484 | )\r | |
485 | {\r | |
486 | PTP_INTERFACE_TYPE PtpInterface;\r | |
487 | \r | |
488 | PtpInterface = Tpm2GetPtpInterface ((VOID *) (UINTN) PcdGet64 (PcdTpmBaseAddress));\r | |
489 | switch (PtpInterface) {\r | |
490 | case PtpInterfaceCrb:\r | |
491 | return PtpCrbTpmCommand (\r | |
492 | (PTP_CRB_REGISTERS_PTR) (UINTN) PcdGet64 (PcdTpmBaseAddress),\r | |
493 | InputParameterBlock,\r | |
494 | InputParameterBlockSize,\r | |
495 | OutputParameterBlock,\r | |
496 | OutputParameterBlockSize\r | |
497 | );\r | |
498 | case PtpInterfaceFifo:\r | |
499 | case PtpInterfaceTis:\r | |
500 | return Tpm2TisTpmCommand (\r | |
501 | (TIS_PC_REGISTERS_PTR) (UINTN) PcdGet64 (PcdTpmBaseAddress),\r | |
502 | InputParameterBlock,\r | |
503 | InputParameterBlockSize,\r | |
504 | OutputParameterBlock,\r | |
505 | OutputParameterBlockSize\r | |
506 | );\r | |
507 | default:\r | |
508 | return EFI_NOT_FOUND;\r | |
509 | }\r | |
510 | }\r | |
511 | \r | |
512 | /**\r | |
513 | This service requests use TPM2.\r | |
514 | \r | |
515 | @retval EFI_SUCCESS Get the control of TPM2 chip.\r | |
516 | @retval EFI_NOT_FOUND TPM2 not found.\r | |
517 | @retval EFI_DEVICE_ERROR Unexpected device behavior.\r | |
518 | **/\r | |
519 | EFI_STATUS\r | |
520 | EFIAPI\r | |
521 | DTpm2RequestUseTpm (\r | |
522 | VOID\r | |
523 | )\r | |
524 | {\r | |
525 | PTP_INTERFACE_TYPE PtpInterface;\r | |
526 | \r | |
527 | PtpInterface = Tpm2GetPtpInterface ((VOID *) (UINTN) PcdGet64 (PcdTpmBaseAddress));\r | |
528 | switch (PtpInterface) {\r | |
529 | case PtpInterfaceCrb:\r | |
530 | return PtpCrbRequestUseTpm ((PTP_CRB_REGISTERS_PTR) (UINTN) PcdGet64 (PcdTpmBaseAddress));\r | |
531 | case PtpInterfaceFifo:\r | |
532 | case PtpInterfaceTis:\r | |
533 | return TisPcRequestUseTpm ((TIS_PC_REGISTERS_PTR) (UINTN) PcdGet64 (PcdTpmBaseAddress));\r | |
534 | default:\r | |
535 | return EFI_NOT_FOUND;\r | |
536 | }\r | |
537 | }\r |