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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)

  1. I2C1 0x00 - tCover

  2. I2C1 0x28 - SEN1 / SNMU

  3. I2C1 0x50 - GFXC??

I2C2 - Daughterboard

  1. I2C2 0x0C - SARA

  2. I2C2 0x2D - TEV2 - cypress

  3. I2C2 0x39 - TIC2

  4. I2C2 0x5B - TOUA -atmel

I2C3

  1. I2C3 0x10 - GFXC

  2. I2C3 0x72 - GFXC

I2C4 - HDMI

  1. I2C4 0x30 - GFXC - EDID

  2. I2C4 0x3A - GFXC - EDID

  3. I2C4 0x3B - GFXC - EDID

  4. I2C4 0x50 - GFXC - EDID

I2C5 -Mainboard

  1. I2C5 0x0A - TRO1 - battery?

  2. I2C5 0x0C - SARA / TIC1

  3. I2C5 0x1A - AUDI - wolfson

  4. I2C5 0x2D - Power resource / PMUD / TR3_(RTC) - PMIC

  5. I2C5 0x4C - THEM / TI2C

  6. 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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