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1 | /** @file\r |
2 | This module provides an implementation of the SMM Control PPI for use with\r | |
3 | the QNC.\r | |
4 | \r | |
5 | Copyright (c) 2013-2015 Intel Corporation.\r | |
6 | \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 | |
11 | \r | |
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 | |
14 | \r | |
15 | **/\r | |
16 | \r | |
17 | #include <PiPei.h>\r | |
18 | \r | |
19 | #include <Ppi/SmmControl.h>\r | |
20 | \r | |
21 | #include <Library/DebugLib.h>\r | |
22 | #include <Library/HobLib.h>\r | |
23 | #include <Library/PeiServicesLib.h>\r | |
24 | #include <Library/PcdLib.h>\r | |
25 | #include <Library/IoLib.h>\r | |
26 | #include <Library/PciLib.h>\r | |
27 | \r | |
28 | #include <IntelQNCPeim.h>\r | |
29 | #include <Library/QNCAccessLib.h>\r | |
30 | #include <Uefi/UefiBaseType.h>\r | |
31 | \r | |
32 | /**\r | |
33 | Generates an SMI using the parameters passed in.\r | |
34 | \r | |
35 | @param PeiServices Describes the list of possible PEI Services.\r | |
36 | @param This A pointer to an instance of\r | |
37 | EFI_SMM_CONTROL_PPI\r | |
38 | @param ArgumentBuffer The argument buffer\r | |
39 | @param ArgumentBufferSize The size of the argument buffer\r | |
40 | @param Periodic TRUE to indicate a periodical SMI\r | |
41 | @param ActivationInterval Interval of the periodical SMI\r | |
42 | \r | |
43 | @retval EFI_INVALID_PARAMETER Periodic is TRUE or ArgumentBufferSize > 1\r | |
44 | @retval EFI_SUCCESS SMI generated\r | |
45 | \r | |
46 | **/\r | |
47 | EFI_STATUS\r | |
48 | EFIAPI\r | |
49 | PeiActivate (\r | |
50 | IN EFI_PEI_SERVICES **PeiServices,\r | |
51 | IN PEI_SMM_CONTROL_PPI *This,\r | |
52 | IN OUT INT8 *ArgumentBuffer OPTIONAL,\r | |
53 | IN OUT UINTN *ArgumentBufferSize OPTIONAL,\r | |
54 | IN BOOLEAN Periodic OPTIONAL,\r | |
55 | IN UINTN ActivationInterval OPTIONAL\r | |
56 | );\r | |
57 | \r | |
58 | /**\r | |
59 | Clears an SMI.\r | |
60 | \r | |
61 | @param PeiServices Describes the list of possible PEI Services.\r | |
62 | @param This Pointer to an instance of EFI_SMM_CONTROL_PPI\r | |
63 | @param Periodic TRUE to indicate a periodical SMI\r | |
64 | \r | |
65 | @return Return value from SmmClear()\r | |
66 | \r | |
67 | **/\r | |
68 | EFI_STATUS\r | |
69 | EFIAPI\r | |
70 | PeiDeactivate (\r | |
71 | IN EFI_PEI_SERVICES **PeiServices,\r | |
72 | IN PEI_SMM_CONTROL_PPI *This,\r | |
73 | IN BOOLEAN Periodic OPTIONAL\r | |
74 | );\r | |
75 | \r | |
76 | PEI_SMM_CONTROL_PPI mSmmControlPpi = {\r | |
77 | PeiActivate,\r | |
78 | PeiDeactivate\r | |
79 | };\r | |
80 | \r | |
81 | EFI_PEI_PPI_DESCRIPTOR mPpiList = {\r | |
82 | (EFI_PEI_PPI_DESCRIPTOR_PPI | EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST),\r | |
83 | &gPeiSmmControlPpiGuid,\r | |
84 | &mSmmControlPpi\r | |
85 | };\r | |
86 | \r | |
87 | /**\r | |
88 | Clear SMI related chipset status and re-enable SMI by setting the EOS bit.\r | |
89 | \r | |
90 | @retval EFI_SUCCESS The requested operation has been carried out successfully\r | |
91 | @retval EFI_DEVICE_ERROR The EOS bit could not be set.\r | |
92 | \r | |
93 | **/\r | |
94 | EFI_STATUS\r | |
95 | SmmClear (\r | |
96 | VOID\r | |
97 | )\r | |
98 | {\r | |
9b6bbcdb MK |
99 | UINT16 GPE0BLK_Base;\r |
100 | \r | |
101 | //\r | |
0e283ad7 | 102 | // Get GPE0BLK_Base\r |
9b6bbcdb | 103 | //\r |
9b6bbcdb MK |
104 | GPE0BLK_Base = PcdGet16 (PcdGpe0blkIoBaseAddress);\r |
105 | \r | |
106 | //\r | |
107 | // Clear the Power Button Override Status Bit, it gates EOS from being set.\r | |
108 | // In QuarkNcSocId - Bit is read only. Handled by external SMC, do nothing.\r | |
109 | //\r | |
110 | \r | |
111 | //\r | |
112 | // Clear the APM SMI Status Bit\r | |
113 | //\r | |
114 | IoWrite32 ((GPE0BLK_Base + R_QNC_GPE0BLK_SMIS), B_QNC_GPE0BLK_SMIS_APM);\r | |
115 | \r | |
116 | //\r | |
117 | // Set the EOS Bit\r | |
118 | //\r | |
119 | IoOr32 ((GPE0BLK_Base + R_QNC_GPE0BLK_SMIS), B_QNC_GPE0BLK_SMIS_EOS);\r | |
120 | \r | |
121 | return EFI_SUCCESS;\r | |
122 | }\r | |
123 | \r | |
124 | \r | |
125 | EFI_STATUS\r | |
126 | EFIAPI\r | |
127 | SmmTrigger (\r | |
128 | IN UINT8 Data\r | |
129 | )\r | |
130 | /*++\r | |
131 | \r | |
132 | Routine Description:\r | |
133 | \r | |
134 | Trigger the software SMI\r | |
135 | \r | |
136 | Arguments:\r | |
137 | \r | |
138 | Data The value to be set on the software SMI data port\r | |
139 | \r | |
140 | Returns:\r | |
141 | \r | |
142 | EFI_SUCCESS Function completes successfully\r | |
143 | \r | |
144 | --*/\r | |
145 | {\r | |
146 | UINT16 GPE0BLK_Base;\r | |
147 | UINT32 NewValue;\r | |
148 | \r | |
149 | //\r | |
150 | // Get GPE0BLK_Base\r | |
151 | //\r | |
152 | GPE0BLK_Base = PcdGet16 (PcdGpe0blkIoBaseAddress);\r | |
153 | \r | |
154 | //\r | |
155 | // Enable the APMC SMI\r | |
156 | //\r | |
157 | IoOr32 (GPE0BLK_Base + R_QNC_GPE0BLK_SMIE, B_QNC_GPE0BLK_SMIE_APM);\r | |
158 | \r | |
159 | //\r | |
160 | // Enable SMI globally\r | |
161 | //\r | |
162 | NewValue = QNCPortRead (QUARK_NC_HOST_BRIDGE_SB_PORT_ID, QNC_MSG_FSBIC_REG_HMISC);\r | |
163 | NewValue |= SMI_EN;\r | |
164 | QNCPortWrite (QUARK_NC_HOST_BRIDGE_SB_PORT_ID, QNC_MSG_FSBIC_REG_HMISC, NewValue);\r | |
165 | \r | |
166 | \r | |
167 | //\r | |
168 | // Generate the APMC SMI\r | |
169 | //\r | |
170 | IoWrite8 (PcdGet16 (PcdSmmActivationPort), Data);\r | |
171 | \r | |
172 | return EFI_SUCCESS;\r | |
173 | }\r | |
174 | \r | |
175 | /**\r | |
176 | Generates an SMI using the parameters passed in.\r | |
177 | \r | |
178 | @param PeiServices Describes the list of possible PEI Services.\r | |
179 | @param This A pointer to an instance of\r | |
180 | EFI_SMM_CONTROL_PPI\r | |
181 | @param ArgumentBuffer The argument buffer\r | |
182 | @param ArgumentBufferSize The size of the argument buffer\r | |
183 | @param Periodic TRUE to indicate a periodical SMI\r | |
184 | @param ActivationInterval Interval of the periodical SMI\r | |
185 | \r | |
186 | @retval EFI_INVALID_PARAMETER Periodic is TRUE or ArgumentBufferSize > 1\r | |
187 | @retval EFI_SUCCESS SMI generated\r | |
188 | \r | |
189 | **/\r | |
190 | EFI_STATUS\r | |
191 | EFIAPI\r | |
192 | PeiActivate (\r | |
193 | IN EFI_PEI_SERVICES **PeiServices,\r | |
194 | IN PEI_SMM_CONTROL_PPI *This,\r | |
195 | IN OUT INT8 *ArgumentBuffer OPTIONAL,\r | |
196 | IN OUT UINTN *ArgumentBufferSize OPTIONAL,\r | |
197 | IN BOOLEAN Periodic OPTIONAL,\r | |
198 | IN UINTN ActivationInterval OPTIONAL\r | |
199 | )\r | |
200 | {\r | |
201 | INT8 Data;\r | |
202 | EFI_STATUS Status;\r | |
203 | //\r | |
204 | // Periodic SMI not supported.\r | |
205 | //\r | |
206 | if (Periodic) {\r | |
207 | DEBUG ((DEBUG_WARN, "Invalid parameter\n"));\r | |
208 | return EFI_INVALID_PARAMETER;\r | |
209 | }\r | |
210 | \r | |
211 | if (ArgumentBuffer == NULL) {\r | |
212 | Data = 0xFF;\r | |
213 | } else {\r | |
214 | if (ArgumentBufferSize == NULL || *ArgumentBufferSize != 1) {\r | |
215 | return EFI_INVALID_PARAMETER;\r | |
216 | }\r | |
217 | \r | |
218 | Data = *ArgumentBuffer;\r | |
219 | }\r | |
220 | //\r | |
221 | // Clear any pending the APM SMI\r | |
222 | //\r | |
223 | Status = SmmClear ();\r | |
224 | if (EFI_ERROR (Status)) {\r | |
225 | return Status;\r | |
226 | }\r | |
227 | \r | |
228 | return SmmTrigger (Data);\r | |
229 | }\r | |
230 | \r | |
231 | /**\r | |
232 | Clears an SMI.\r | |
233 | \r | |
234 | @param PeiServices Describes the list of possible PEI Services.\r | |
235 | @param This Pointer to an instance of EFI_SMM_CONTROL_PPI\r | |
236 | @param Periodic TRUE to indicate a periodical SMI\r | |
237 | \r | |
238 | @return Return value from SmmClear()\r | |
239 | \r | |
240 | **/\r | |
241 | EFI_STATUS\r | |
242 | EFIAPI\r | |
243 | PeiDeactivate (\r | |
244 | IN EFI_PEI_SERVICES **PeiServices,\r | |
245 | IN PEI_SMM_CONTROL_PPI *This,\r | |
246 | IN BOOLEAN Periodic OPTIONAL\r | |
247 | )\r | |
248 | {\r | |
249 | if (Periodic) {\r | |
250 | return EFI_INVALID_PARAMETER;\r | |
251 | }\r | |
252 | return SmmClear ();\r | |
253 | }\r | |
254 | \r | |
255 | /**\r | |
256 | This is the constructor for the SMM Control Ppi.\r | |
257 | \r | |
258 | This function installs EFI_SMM_CONTROL_PPI.\r | |
259 | \r | |
260 | @param FileHandle Handle of the file being invoked.\r | |
261 | @param PeiServices Describes the list of possible PEI Services.\r | |
262 | \r | |
263 | @retval EFI_UNSUPPORTED There's no Intel ICH on this platform\r | |
264 | @return The status returned from InstallPpi().\r | |
265 | \r | |
266 | --*/\r | |
267 | EFI_STATUS\r | |
268 | EFIAPI\r | |
269 | SmmControlPeiEntry (\r | |
270 | IN EFI_PEI_FILE_HANDLE FileHandle,\r | |
271 | IN CONST EFI_PEI_SERVICES **PeiServices\r | |
272 | )\r | |
273 | {\r | |
274 | EFI_STATUS Status;\r | |
275 | \r | |
276 | Status = (**PeiServices).InstallPpi (PeiServices, &mPpiList);\r | |
277 | ASSERT_EFI_ERROR (Status);\r | |
278 | \r | |
279 | return Status;\r | |
280 | }\r |