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1 | /*++\r |
2 | \r | |
3 | Copyright (c) 1999 - 2014, Intel Corporation. All rights reserved\r | |
4 | \r | |
5 | This program and the accompanying materials are licensed and made available under\r | |
6 | the terms and conditions of the BSD License that accompanies this distribution.\r | |
7 | 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 | Module Name:\r | |
16 | \r | |
17 | IgdOSBCB.ASL\r | |
18 | \r | |
19 | Abstract:\r | |
20 | \r | |
21 | IGD OpRegion/Software SCI Reference Code for the Baytrail Family.\r | |
22 | This file contains the system BIOS call back functionality for the\r | |
23 | OpRegion/Software SCI mechanism.\r | |
24 | \r | |
25 | --*/\r | |
26 | \r | |
27 | \r | |
28 | Method (SBCB, 0, Serialized)\r | |
29 | {\r | |
30 | \r | |
31 | // Supported Callbacks: Sub-function 0\r | |
32 | \r | |
33 | If (LEqual(GESF, 0x0))\r | |
34 | {\r | |
35 | \r | |
36 | //<TODO> An OEM may support the driver->SBIOS status callbacks, but\r | |
37 | // the supported callbacks value must be modified. The code that is\r | |
38 | // executed upon reception of the callbacks must be also be updated\r | |
39 | // to perform the desired functionality.\r | |
40 | \r | |
41 | Store(0x00000000, PARM) // No callbacks supported\r | |
42 | \r | |
43 | If(LEqual(PFLV,FMBL))\r | |
44 | {\r | |
45 | Store(0x000F87FD, PARM) // Mobile\r | |
46 | }\r | |
47 | If(LEqual(PFLV,FDTP))\r | |
48 | {\r | |
49 | Store(0x000F87BD, PARM) // Desktop\r | |
50 | }\r | |
51 | \r | |
52 | Store(Zero, GESF) // Clear the exit parameter\r | |
53 | Return(SUCC) // "Success"\r | |
54 | }\r | |
55 | \r | |
56 | // BIOS POST Completion: Sub-function 1\r | |
57 | \r | |
58 | If (LEqual(GESF, 1))\r | |
59 | {\r | |
60 | Store(Zero, GESF) // Clear the exit parameter\r | |
61 | Store(Zero, PARM)\r | |
62 | Return(SUCC) // Not supported, but no failure\r | |
63 | }\r | |
64 | \r | |
65 | // Pre-Hires Set Mode: Sub-function 3\r | |
66 | \r | |
67 | If (LEqual(GESF, 3))\r | |
68 | {\r | |
69 | Store(Zero, GESF) // Clear the exit parameter\r | |
70 | Store(Zero, PARM)\r | |
71 | Return(SUCC) // Not supported, but no failure\r | |
72 | }\r | |
73 | \r | |
74 | // Post-Hires Set Mode: Sub-function 4\r | |
75 | \r | |
76 | If (LEqual(GESF, 4))\r | |
77 | {\r | |
78 | Store(Zero, GESF) // Clear the exit parameter\r | |
79 | Store(Zero, PARM)\r | |
80 | Return(SUCC) // Not supported, but no failure\r | |
81 | }\r | |
82 | \r | |
83 | // Display Switch: Sub-function 5\r | |
84 | \r | |
85 | If (LEqual(GESF, 5))\r | |
86 | {\r | |
87 | Store(Zero, GESF) // Clear the exit parameter\r | |
88 | Store(Zero, PARM)\r | |
89 | Return(SUCC) // Not supported, but no failure\r | |
90 | }\r | |
91 | \r | |
92 | // Set TV format: Sub-function 6\r | |
93 | \r | |
94 | If (LEqual(GESF, 6))\r | |
95 | {\r | |
96 | \r | |
97 | //<TODO> If implemented, the input values must be saved into\r | |
98 | // non-volatile storage for parsing during the next boot. The\r | |
99 | // following Sample code is Intel validated implementation.\r | |
100 | \r | |
101 | Store(And(PARM, 0x0F), ITVF)\r | |
102 | Store(ShiftRight(And(PARM, 0xF0), 4), ITVM)\r | |
103 | Store(Zero, GESF) // Clear the exit parameter\r | |
104 | Store(Zero, PARM)\r | |
105 | Return(SUCC)\r | |
106 | }\r | |
107 | \r | |
108 | // Adapter Power State: Sub-function 7\r | |
109 | \r | |
110 | If (LEqual(GESF, 7))\r | |
111 | {\r | |
112 | \r | |
113 | // Upon notification from driver that the Adapter Power State = D0,\r | |
114 | // check if previous lid event failed. If it did, retry the lid\r | |
115 | // event here.\r | |
116 | If(LEqual(PARM, 0))\r | |
117 | {\r | |
118 | Store(CLID, Local0)\r | |
119 | If(And(0x80000000,Local0))\r | |
120 | {\r | |
121 | And(CLID, 0x0000000F, CLID)\r | |
122 | GLID(CLID)\r | |
123 | }\r | |
124 | }\r | |
125 | Store(Zero, GESF) // Clear the exit parameter\r | |
126 | Store(Zero, PARM)\r | |
127 | Return(SUCC) // Not supported, but no failure\r | |
128 | }\r | |
129 | \r | |
130 | // Display Power State: Sub-function 8\r | |
131 | \r | |
132 | If (LEqual(GESF, 8))\r | |
133 | {\r | |
134 | Store(Zero, GESF) // Clear the exit parameter\r | |
135 | Store(Zero, PARM)\r | |
136 | Return(SUCC) // Not supported, but no failure\r | |
137 | }\r | |
138 | \r | |
139 | // Set Boot Display: Sub-function 9\r | |
140 | \r | |
141 | If (LEqual(GESF, 9))\r | |
142 | {\r | |
143 | \r | |
144 | //<TODO> An OEM may elect to implement this method. In that case,\r | |
145 | // the input values must be saved into non-volatile storage for\r | |
146 | // parsing during the next boot. The following Sample code is Intel\r | |
147 | // validated implementation.\r | |
148 | \r | |
149 | And(PARM, 0xFF, IBTT) // Save the boot display to NVS\r | |
150 | Store(Zero, GESF) // Clear the exit parameter\r | |
151 | Store(Zero, PARM)\r | |
152 | Return(SUCC) // Reserved, "Critical failure"\r | |
153 | }\r | |
154 | \r | |
155 | // Set Panel Details: Sub-function 10 (0Ah)\r | |
156 | \r | |
157 | If (LEqual(GESF, 10))\r | |
158 | {\r | |
159 | \r | |
160 | //<TODO> An OEM may elect to implement this method. In that case,\r | |
161 | // the input values must be saved into non-volatile storage for\r | |
162 | // parsing during the next boot. The following Sample code is Intel\r | |
163 | // validated implementation.\r | |
164 | \r | |
165 | // Set the panel-related NVRAM variables based the input from the driver.\r | |
166 | \r | |
167 | And(PARM, 0xFF, IPSC)\r | |
168 | \r | |
169 | // Change panel type if a change is requested by the driver (Change if\r | |
170 | // panel type input is non-zero). Zero=No change requested.\r | |
171 | \r | |
172 | If(And(ShiftRight(PARM, 8), 0xFF))\r | |
173 | {\r | |
174 | And(ShiftRight(PARM, 8), 0xFF, IPAT)\r | |
175 | Decrement(IPAT) // 0 = no change, so fit to CMOS map\r | |
176 | }\r | |
177 | And(ShiftRight(PARM, 18), 0x3, IBLC)\r | |
178 | And(ShiftRight(PARM, 20), 0x7, IBIA)\r | |
179 | Store(Zero, GESF) // Clear the exit parameter\r | |
180 | Store(Zero, PARM)\r | |
181 | Return(SUCC) // Success\r | |
182 | }\r | |
183 | \r | |
184 | // Set Internal Graphics: Sub-function 11 (0Bh)\r | |
185 | \r | |
186 | If (LEqual(GESF, 11))\r | |
187 | {\r | |
188 | \r | |
189 | //<TODO> An OEM may elect to implement this method. In that case,\r | |
190 | // the input values must be saved into non-volatile storage for\r | |
191 | // parsing during the next boot. The following Sample code is Intel\r | |
192 | // validated implementation.\r | |
193 | \r | |
194 | And(ShiftRight(PARM, 1), 1, IF1E) // Program the function 1 option\r | |
195 | \r | |
196 | // Fixed memory/DVMT memory\r | |
197 | \r | |
198 | And(ShiftRight(PARM, 17), 0xF, IDMS) // Program DVMT/fixed memory size\r | |
199 | \r | |
200 | Store(Zero, GESF) // Clear the exit parameter\r | |
201 | Store(Zero, PARM)\r | |
202 | Return(SUCC) // Success\r | |
203 | }\r | |
204 | \r | |
205 | // Post-Hires to DOS FS: Sub-function 16 (10h)\r | |
206 | \r | |
207 | If (LEqual(GESF, 16))\r | |
208 | {\r | |
209 | Store(Zero, GESF) // Clear the exit parameter\r | |
210 | Store(Zero, PARM)\r | |
211 | Return(SUCC) // Not supported, but no failure\r | |
212 | }\r | |
213 | \r | |
214 | // APM Complete: Sub-function 17 (11h)\r | |
215 | \r | |
216 | If (LEqual(GESF, 17))\r | |
217 | {\r | |
218 | \r | |
219 | Store(ShiftLeft(LIDS, 8), PARM) // Report the lid state\r | |
220 | Add(PARM, 0x100, PARM) // Adjust the lid state, 0 = Unknown\r | |
221 | \r | |
222 | Store(Zero, GESF) // Clear the exit parameter\r | |
223 | Return(SUCC) // Not supported, but no failure\r | |
224 | }\r | |
225 | \r | |
226 | // Set Spread Spectrum Clocks: Sub-function 18 (12h)\r | |
227 | \r | |
228 | If (LEqual(GESF, 18))\r | |
229 | {\r | |
230 | \r | |
231 | //<TODO> An OEM may elect to implement this method. In that case,\r | |
232 | // the input values must be saved into non-volatile storage for\r | |
233 | // parsing during the next boot. The following Sample code is Intel\r | |
234 | // validated implementation.\r | |
235 | \r | |
236 | If(And(PARM, 1))\r | |
237 | {\r | |
238 | If(LEqual(ShiftRight(PARM, 1), 1))\r | |
239 | {\r | |
240 | Store(1, ISSC) // Enable HW SSC, only for clock 1\r | |
241 | }\r | |
242 | Else\r | |
243 | {\r | |
244 | Store(Zero, GESF)\r | |
245 | Return(CRIT) // Failure, as the SSC clock must be 1\r | |
246 | }\r | |
247 | }\r | |
248 | Else\r | |
249 | {\r | |
250 | Store(0, ISSC) // Disable SSC\r | |
251 | }\r | |
252 | Store(Zero, GESF) // Clear the exit parameter\r | |
253 | Store(Zero, PARM)\r | |
254 | Return(SUCC) // Success\r | |
255 | }\r | |
256 | \r | |
257 | // Post VBE/PM Callback: Sub-function 19 (13h)\r | |
258 | \r | |
259 | If (LEqual(GESF, 19))\r | |
260 | {\r | |
261 | Store(Zero, GESF) // Clear the exit parameter\r | |
262 | Store(Zero, PARM)\r | |
263 | Return(SUCC) // Not supported, but no failure\r | |
264 | }\r | |
265 | \r | |
266 | // Set PAVP Data: Sub-function 20 (14h)\r | |
267 | \r | |
268 | If (LEqual(GESF, 20))\r | |
269 | {\r | |
270 | And(PARM, 0xF, PAVP) // Store PAVP info\r | |
271 | Store(Zero, GESF) // Clear the exit parameter\r | |
272 | Store(Zero, PARM)\r | |
273 | Return(SUCC) // Success\r | |
274 | }\r | |
275 | \r | |
276 | // A call to a reserved "System BIOS callbacks" function was received\r | |
277 | \r | |
278 | Store(Zero, GESF) // Clear the exit parameter\r | |
279 | Return(SUCC) // Reserved, "Critical failure"\r | |
280 | }\r |