SSDT
Extends DSDT.
Surface RT has 2 SSDT tables.
SSDT0000.bin contains the hardware description (very interesting) SSDT0001.bin contains only TPM stuff. (uninteresting at the moment)
Decompile SSDT0000.bin
Most of the ACPI tables can be decompiled by iASL (Intel ASL compiler).
But SSDT0000.bin can not be decompiled by iASL.
We have to use MS-ASL compiler. (MS ASL is not as strict as iASL which leads to issues with Linux)
https://docs.microsoft.com/en-us/windows-hardware/drivers/bringup/microsoft-asl-compiler
use asl.exe /u /e /ResDecode SSDT0000.bin
Decompiled output below:
Compile SSDT0000.ASL
There is a way to compile the SSDT0000.ASL with iasl, without getting a lot of errors about external symbols. Just put the file next to the other acpi tables (don't decompile them), and it shouldn't give errors about missing external symbols. There are 4 syntax errors, currently there are no fixes available.
What SSDT0000.ASL can tell you
WorkInProgress
I2C Devices
Search for I2CSerialBus
should reveal all i2c devices.
I2C1 (HID Stuff)
I2C1 0x00 - tCover
I2C1 0x28 - SEN1 / SNMU
I2C1 0x50 - GFXC??
I2C2 - Daughterboard
I2C2 0x0C - SARA
I2C2 0x2D - TEV2 - cypress
I2C2 0x39 - TIC2
I2C2 0x5B - TOUA -atmel
I2C3
I2C3 0x10 - GFXC
I2C3 0x72 - GFXC
I2C4 - HDMI
I2C4 0x30 - GFXC - EDID
I2C4 0x3A - GFXC - EDID
I2C4 0x3B - GFXC - EDID
I2C4 0x50 - GFXC - EDID
I2C5 -Mainboard
I2C5 0x0A - TRO1 - battery?
I2C5 0x0C - SARA / TIC1
I2C5 0x1A - AUDI - wolfson
I2C5 0x2D - Power resource / PMUD / TR3_(RTC) - PMIC
I2C5 0x4C - THEM / TI2C
I2C5 0x60 - PMUD - PMIC2
GPIOs
PB2: (Exclusive, PullDefault, 0, 0, IoRestrictionNoneAndPreserve, "\\_SB.GPIO", 0, ResourceConsumer, , )
PD1: (Exclusive, PullDefault, 0, 0, IoRestrictionOutputOnly, "\\_SB.GPIO", 0, ResourceConsumer, , )
PD7: (Exclusive, PullDefault, 0, 0, IoRestrictionNone, "\\_SB.GPIO", 0, ResourceConsumer, , )
PDD0: (Exclusive, PullDefault, 0, 0, IoRestrictionNoneAndPreserve, "\\_SB.GPIO", 0, ResourceConsumer, , )
PDD2: (Exclusive, PullDefault, 0, 0, IoRestrictionNoneAndPreserve, "\\_SB.GPIO", 0, ResourceConsumer, , )
PDD7: (Exclusive, PullDefault, 0, 0, IoRestrictionNone, "\\_SB.GPIO", 0, ResourceConsumer, , )
PH0: (Shared, PullDefault, 0, 0, IoRestrictionNoneAndPreserve, "\\_SB.GPIO", 0, ResourceConsumer, , )
PH6: (Exclusive, PullDefault, 0, 0, IoRestrictionNone, "\\_SB.GPIO", 0, ResourceConsumer, , )
PI5: (Shared, PullDefault, 0, 0, IoRestrictionNone, "\\_SB.GPIO", 0, ResourceConsumer, , )
PL1: (Shared, PullDefault, 0, 0, IoRestrictionNone, "\\_SB.GPIO", 0, ResourceConsumer, , )
PN0: (Exclusive, PullDefault, 0, 0, IoRestrictionNone, "\\_SB.GPIO", 0, ResourceConsumer, , )
PN3: (Exclusive, PullDefault, 0, 0, IoRestrictionNone, "\\_SB.GPIO", 0, ResourceConsumer, , )
PN7: (Shared, PullDefault, 0, 0, IoRestrictionNoneAndPreserve, "\\_SB.GPIO", 0, ResourceConsumer, , )
PR4: (Exclusive, PullDefault, 0, 0, IoRestrictionNone, "\\_SB.GPIO", 0, ResourceConsumer, , )
PR6: (Shared, PullDefault, 0, 0, IoRestrictionNone, "\\_SB.GPIO", 0, ResourceConsumer, , )
PR6: (Shared, PullDefault, 0, 0, IoRestrictionNoneAndPreserve, "\\_SB.GPIO", 0, ResourceConsumer, , )
PR7: (Shared, PullDefault, 0, 0, IoRestrictionNone, "\\_SB.GPIO", 0, ResourceConsumer, , )
PR7: (Shared, PullDefault, 0, 0, IoRestrictionNoneAndPreserve, "\\_SB.GPIO", 0, ResourceConsumer, , )
PS0: (Shared, PullDefault, 0, 0, IoRestrictionNone, "\\_SB.GPIO", 0, ResourceConsumer, , )
PS1: (Exclusive, PullDefault, 0, 0, IoRestrictionNone, "\\_SB.GPIO", 0, ResourceConsumer, , )
PS3: (Exclusive, PullDefault, 0, 0, IoRestrictionOutputOnly, "\\_SB.GPIO", 0, ResourceConsumer, , )
PS5: (Shared, PullDefault, 0, 0, IoRestrictionNone, "\\_SB.GPIO", 0, ResourceConsumer, , )
PS5: (Shared, PullDefault, 0, 0, IoRestrictionNone, "\\_SB.GPIO", 0, ResourceConsumer, , )
PS6: (Shared, PullDefault, 0, 0, IoRestrictionNone, "\\_SB.GPIO", 0, ResourceConsumer, , )
PS6: (Shared, PullDefault, 0, 0, IoRestrictionNone, "\\_SB.GPIO", 0, ResourceConsumer, , )
PS7: (Shared, PullDefault, 0, 0, IoRestrictionNone, "\\_SB.GPIO", 0, ResourceConsumer, , )
PS7: (Shared, PullDefault, 0, 0, IoRestrictionNone, "\\_SB.GPIO", 0, ResourceConsumer, , )
PT3: (Exclusive, PullDefault, 0, 0, IoRestrictionNone, "\\_SB.GPIO", 0, ResourceConsumer, , )
PV0: (Shared, PullDefault, 0, 0, IoRestrictionNone, "\\_SB.GPIO", 0, ResourceConsumer, , )
PV0: (Shared, PullDefault, 0, 0, IoRestrictionNone, "\\_SB.GPIO", 0, ResourceConsumer, , )
PW2: (Shared, PullUp, 0, 0, IoRestrictionNone, "\\_SB.GPIO", 0, ResourceConsumer, , )
PW3: (Shared, PullUp, 0, 0, IoRestrictionNone, "\\_SB.GPIO", 0, ResourceConsumer, , )
PBB0: (Exclusive, PullDefault, 0, 0, IoRestrictionNone, "\\_SB.GPIO", 0, ResourceConsumer, , )
PBB4: (Exclusive, PullDefault, 0, 0, IoRestrictionNone, "\\_SB.GPIO", 0, ResourceConsumer, , )
PBB7: (Exclusive, PullDefault, 0, 0, IoRestrictionNone, "\\_SB.GPIO", 0, ResourceConsumer, , )
PCC7: (Exclusive, PullDefault, 0, 0, IoRestrictionNone, "\\_SB.GPIO", 0, ResourceConsumer, , )
Interrupts
PI5: (Edge, ActiveBoth, SharedAndWake, PullDefault, 0x1388, "\\_SB.GPIO", 0, ResourceConsumer, , )
PJ0: (Edge, ActiveHigh, SharedAndWake, PullDefault, 0, "\\_SB.GPIO", 0, ResourceConsumer, , )
PJ0: (Edge, ActiveHigh, SharedAndWake, PullDefault, 0, "\\_SB.GPIO", 0, ResourceConsumer, , )
PK2: (Level, ActiveLow, Shared, PullDefault, 0, "\\_SB.GPIO", 0, ResourceConsumer, , )
PL1: (Edge, ActiveBoth, SharedAndWake, PullDefault, 0, "\\_SB.GPIO", 0, ResourceConsumer, , )
PN2: (Level, ActiveLow, Shared, PullDefault, 0, "\\_SB.GPIO", 0, ResourceConsumer, , )
PN7: (Edge, ActiveBoth, Shared, PullDefault, 0, "\\_SB.GPIO", 0, ResourceConsumer, , )
PN7: (Edge, ActiveBoth, Shared, PullDefault, 0, "\\_SB.GPIO", 0, ResourceConsumer, , )
PS0: (Edge, ActiveBoth, SharedAndWake, PullDefault, 0, "\\_SB.GPIO", 0, ResourceConsumer, , )
PS0: (Edge, ActiveBoth, SharedAndWake, PullDefault, 0, "\\_SB.GPIO", 0, ResourceConsumer, , )
PS5: (Edge, ActiveBoth, SharedAndWake, PullDefault, 0, "\\_SB.GPIO", 0, ResourceConsumer, , )
PS5: (Edge, ActiveBoth, SharedAndWake, PullDefault, 0, "\\_SB.GPIO", 0, ResourceConsumer, , )
PS6: (Edge, ActiveBoth, Shared, PullUp, 0x9c4, "\\_SB.GPIO", 0, ResourceConsumer, , )
PS6: (Edge, ActiveBoth, Shared, PullUp, 0x9c4, "\\_SB.GPIO", 0, ResourceConsumer, , )
PS7: (Edge, ActiveBoth, Shared, PullUp, 0x9c4, "\\_SB.GPIO", 0, ResourceConsumer, , )
PS7: (Edge, ActiveBoth, Shared, PullUp, 0x9c4, "\\_SB.GPIO", 0, ResourceConsumer, , )
PU5: (Level, ActiveHigh, SharedAndWake, PullDown, 0, "\\_SB.GPIO", 0, ResourceConsumer, , )
PU6: (Edge, ActiveLow, ExclusiveAndWake, PullDefault, 0, "\\_SB.GPIO", 0, ResourceConsumer, , )
PV0: (Edge, ActiveHigh, SharedAndWake, PullDefault, 0x9c4, "\\_SB.GPIO", 0, ResourceConsumer, , )
PV0: (Edge, ActiveHigh, SharedAndWake, PullDefault, 0x9c4, "\\_SB.GPIO", 0, ResourceConsumer, , )
PW2: (Edge, ActiveBoth, SharedAndWake, PullUp, 0, "\\_SB.GPIO", 0, ResourceConsumer, , )
PW3: (Edge, ActiveBoth, Shared, PullUp, 0, "\\_SB.GPIO", 0, ResourceConsumer, , )
PBB6: (Level, ActiveLow, Shared, PullDefault, 0, "\\_SB.GPIO", 0, ResourceConsumer, , )
PDD3: (Edge, ActiveBoth, SharedAndWake, PullDefault, 0, "\\_SB.GPIO", 0, ResourceConsumer, , )
PDD3: (Level, ActiveLow, ExclusiveAndWake, PullDefault, 0, "\\_SB.GPIO", 0, ResourceConsumer, , )
Power Resources
PRS1
PD7 - ESD1
PRCN - PMIC(I2C5)
LDO5 - SD Regulator 1V8-3V3
PRMU
PD7 - ESD1
PRTU
PD1- ESD1
PD2 - ESD2
PRI5
PRTC
GFXC: PR6 LDO1 PR7 LDO2 PBB4 E1V8
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