diff options
Diffstat (limited to 'src/ec')
| -rw-r--r-- | src/ec/google/chromeec/acpi/ec.asl | 38 | ||||
| -rw-r--r-- | src/ec/google/chromeec/acpi/keyboard_backlight.asl | 14 |
2 files changed, 48 insertions, 4 deletions
diff --git a/src/ec/google/chromeec/acpi/ec.asl b/src/ec/google/chromeec/acpi/ec.asl index 422abe1881..0d05110262 100644 --- a/src/ec/google/chromeec/acpi/ec.asl +++ b/src/ec/google/chromeec/acpi/ec.asl @@ -47,15 +47,49 @@ Device (EC0) RAMV, 8, // EC RAM Version TSTB, 8, // Test Byte TSTC, 8, // Complement of Test Byte - KBLV, 8, // Keyboard Backlight + KBLV, 8, // Keyboard Backlight value FAND, 8, // Set Fan Duty Cycle PATI, 8, // Programmable Auxiliary Trip Sensor ID PATT, 8, // Programmable Auxiliary Trip Threshold PATC, 8, // Programmable Auxiliary Trip Commit CHGL, 8, // Charger Current Limit TBMD, 1, // Tablet mode + // DFUD must be 0 for the other 31 values to be valid Offset (0x0a), - KBLE, 1, // Keyboard Backlight exists + DFUD, 1, // Device Features Undefined + FLSH, 1, // Flash commands present + PFAN, 1, // PWM Fan control present + KBLE, 1, // Keyboard Backlight present + LTBR, 1, // Lightbar present + LEDC, 1, // LED control + MTNS, 1, // Motion sensors present + KEYB, 1, // EC is keyboard controller + PSTR, 1, // Persistent storage + P80P, 1, // EC serves I/O Port 80h + THRM, 1, // EC supports thermal management + SBKL, 1, // Screen backlight switch present + WIFI, 1, // WIFI switch present + HOST, 1, // EC monitors host events (eg SCI, SMI) + GPIO, 1, // EC provides GPIO commands + I2CB, 1, // EC provides I2C controller access + CHRG, 1, // EC provides commands for charger control + BATT, 1, // Simply Battery support + SBAT, 1, // Smart Battery support + HANG, 1, // EC can detect host hang + PMUI, 1, // Power Information + DSEC, 1, // another EC exists downstream + UPDC, 1, // supports USB Power Delivery + UMUX, 1, // supports USB Mux + MSFF, 1, // Motion Sense has FIFO + TVST, 1, // supports temporary secure vstore + TCMV, 1, // USB Type C Muxing is virtual (host assisted) + RTCD, 1, // EC provides an RTC device + FPRD, 1, // EC provides a fingerprint reader device + TPAD, 1, // EC provides a touchpad device + RWSG, 1, // EC has RWSIG task enabled + DEVE, 1, // EC supports device events + // make sure we're within our space envelope + Offset (0x0e), } #if IS_ENABLED(CONFIG_EC_GOOGLE_CHROMEEC_ACPI_MEMMAP) diff --git a/src/ec/google/chromeec/acpi/keyboard_backlight.asl b/src/ec/google/chromeec/acpi/keyboard_backlight.asl index d76bed87ea..1edce819d1 100644 --- a/src/ec/google/chromeec/acpi/keyboard_backlight.asl +++ b/src/ec/google/chromeec/acpi/keyboard_backlight.asl @@ -33,8 +33,18 @@ Scope (\_SB) */ Method (_STA, 0, NotSerialized) { - Multiply (0xf, \_SB.PCI0.LPCB.EC0.KBLE, Local0) - Return (Local0) + /* If query is unsupported, but this code is compiled + * in, assume the backlight exists physically. + */ + If (LEqual (1, \_SB.PCI0.LPCB.EC0.DFUD)) { + Return (0xf) + } + /* If EC reports that backlight exists, trust it */ + If (LEqual (1, \_SB.PCI0.LPCB.EC0.KBLE)) { + Return (0xf) + } + /* Otherwise: no device -> disable */ + Return (0) } /* Read current backlight value */ |