diff options
Diffstat (limited to 'src/mainboard/google/rambi/acpi/touchscreen_elan.asl')
-rw-r--r-- | src/mainboard/google/rambi/acpi/touchscreen_elan.asl | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/src/mainboard/google/rambi/acpi/touchscreen_elan.asl b/src/mainboard/google/rambi/acpi/touchscreen_elan.asl new file mode 100644 index 0000000000..ac0763d947 --- /dev/null +++ b/src/mainboard/google/rambi/acpi/touchscreen_elan.asl @@ -0,0 +1,53 @@ +/* + * This file is part of the coreboot project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; version 2 of + * the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#include <variant/onboard.h> + +Scope (\_SB.I2C6) +{ + Device (ETSA) + { + Name (_HID, "ELAN0001") + Name (_DDN, "ELAN Touchscreen") + Name (_UID, 1) + Name (ISTP, 0) /* TouchScreen */ + + Name (_CRS, ResourceTemplate() + { + I2cSerialBus ( + BOARD_TOUCHSCREEN_I2C_ADDR, // SlaveAddress + ControllerInitiated, // SlaveMode + 400000, // ConnectionSpeed + AddressingMode7Bit, // AddressingMode + "\\_SB.I2C6", // ResourceSource + ) + Interrupt (ResourceConsumer, Level, ActiveLow) + { + BOARD_TOUCHSCREEN_IRQ + } + }) + + Method (_STA) + { + If (LEqual (\S6EN, 1)) { + Return (0xF) + } Else { + Return (0x0) + } + } + + /* Allow device to power off in S0 */ + Name (_S0W, 4) + } +} |