Lines Matching +full:signal +full:- +full:id
1 .. SPDX-License-Identifier: GPL-2.0
8 The plug and play ID of a Chrome OS ACPI device is GGL0001. GGL is a valid PNP ID of Google.
9 PNP ID can be used with the ACPI devices according to the guidelines. The following ACPI
12 .. flat-table:: Supported ACPI Objects
14 :header-rows: 1
16 * - Object
17 - Description
19 * - CHSW
20 - Chrome OS switch positions
22 * - HWID
23 - Chrome OS hardware ID
25 * - FWID
26 - Chrome OS firmware version
28 * - FRID
29 - Chrome OS read-only firmware version
31 * - BINF
32 - Chrome OS boot information
34 * - GPIO
35 - Chrome OS GPIO assignments
37 * - VBNV
38 - Chrome OS NVRAM locations
40 * - VDTA
41 - Chrome OS verified boot data
43 * - FMAP
44 - Chrome OS flashmap base address
46 * - MLST
47 - Chrome OS method list
54 ----------
58 ------------
61 .. flat-table::
64 * - 0x00000002
65 - Recovery button was pressed when x86 firmware booted.
67 * - 0x00000004
68 - Recovery button was pressed when EC firmware booted. (required if EC EEPROM is
71 * - 0x00000020
72 - Developer switch was enabled when x86 firmware booted.
74 * - 0x00000200
75 - Firmware write protection was disabled when x86 firmware booted. (required if
80 HWID (Chrome OS hardware ID)
82 This control method returns the hardware ID for the Chromebook.
85 ----------
89 ------------
90 A null-terminated ASCII string containing the hardware ID from the Model-Specific Data area of
93 Note that the hardware ID can be up to 256 characters long, including the terminating null.
101 ----------
105 ------------
106 A null-terminated ASCII string containing the complete firmware version for the rewritable
109 FRID (Chrome OS read-only firmware version)
111 This control method returns the firmware version for the read-only portion of the main
115 ----------
119 ------------
120 A null-terminated ASCII string containing the complete firmware version for the read-only
128 ----------
132 ------------
134 .. code-block::
144 .. flat-table::
146 :header-rows: 1
148 * - Field
149 - Format
150 - Description
152 * - Reserved1
153 - DWORD
154 - Set to 256 (0x100). This indicates this field is no longer used.
156 * - Reserved2
157 - DWORD
158 - Set to 256 (0x100). This indicates this field is no longer used.
160 * - Active EC firmware
161 - DWORD
162 - The EC firmware which was used during boot.
164 - 0 - Read-only (recovery) firmware
165 - 1 - Rewritable firmware.
167 Set to 0 if EC firmware is always read-only.
169 * - Active Main Firmware Type
170 - DWORD
171 - The main firmware type which was used during boot.
173 - 0 - Recovery
174 - 1 - Normal
175 - 2 - Developer
176 - 3 - netboot (factory installation only)
180 * - Reserved5
181 - DWORD
182 - Set to 256 (0x100). This indicates this field is no longer used.
190 ----------
194 ------------
195 .. code-block::
200 Signal Type //DWORD
208 Signal Type //DWORD
215 Where ASCIIZ means a null-terminated ASCII string.
217 .. flat-table::
219 :header-rows: 1
221 * - Field
222 - Format
223 - Description
225 * - Signal Type
226 - DWORD
227 - Type of GPIO signal
229 - 0x00000001 - Recovery button
230 - 0x00000002 - Developer mode switch
231 - 0x00000003 - Firmware write protection switch
232 - 0x00000100 - Debug header GPIO 0
233 - ...
234 - 0x000001FF - Debug header GPIO 255
238 * - Attributes
239 - DWORD
240 - Signal attributes as bitfields:
242 - 0x00000001 - Signal is active-high (for button, a GPIO value
244 of 1 means the switch is enabled). If this bit is 0, the signal
247 * - Controller Offset
248 - DWORD
249 - GPIO number on the specified controller.
251 * - Controller Name
252 - ASCIIZ
253 - Name of the controller for the GPIO.
255 "NM10" - Intel NM10 chip
263 ----------
267 ------------
268 .. code-block::
275 .. flat-table::
277 :header-rows: 1
279 * - Field
280 - Format
281 - Description
283 * - NV Storage Block Offset
284 - DWORD
285 - Offset in CMOS bank 0 of the verified boot non-volatile storage block, counting from
289 * - NV Storage Block Size
290 - DWORD
291 - Size in bytes of the verified boot non-volatile storage block.
299 ----------
303 ----------------
313 ----------
317 ------------
322 This control method returns the SHA-1 or SHA-256 hash that is read out of the Management
328 ----------
332 ------------
341 ----------
345 ------------
346 A package containing a list of null-terminated ASCII strings, one for each control method
350 .. code-block::