src/mainboard/google/samus/acpi/mainboard.asl

/*
 * This file is part of the coreboot project.
 *
 * Copyright (C) 2014 Google Inc.
 *
 * 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.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
 */

#undef ENABLE_TOUCH_WAKE

Scope (\_SB)
{
	Device (LID0)
	{
		Name (_HID, EisaId("PNP0C0D"))
		Method (_LID, 0)
		{
			Return (\_SB.PCI0.LPCB.EC0.LIDS)
		}

		// EC wake is GPIO27 which is a special DeepSX wake pin
		Name (_PRW, Package(){ 0x70, 5 }) // GP27_EN
	}

	Device (PWRB)
	{
		Name(_HID, EisaId("PNP0C0C"))
	}

	// Keyboard Backlight interface via EC
	Device (KBLT) {
		Name (_HID, "GOOG0002")
		Name (_UID, 1)

		// Read current backlight value
		Method (KBQC, 0)
		{
			Return (\_SB.PCI0.LPCB.EC0.KBLV)
		}

		// Write new backlight value
		Method (KBCM, 1)
		{
			Store (Arg0, \_SB.PCI0.LPCB.EC0.KBLV)
		}
	}
}

/*
 * WLAN connected to Root Port 3, becomes Root Port 1 after coalesce
 */
Scope (\_SB.PCI0.RP01)
{
	Device (WLAN)
	{
		Name (_ADR, 0x00000000)

		/* GPIO10 is PCH_WLAN_WAKE_L */
		Name (GPIO, 10)

		Name (_PRW, Package() { GPIO, 3 })

		Method (_DSW, 3, NotSerialized)
		{
			If (LEqual (Arg0, 1)) {
				// Enable GPIO as wake source
				\_SB.PCI0.LPCB.GPIO.GWAK (^GPIO)
			}
		}
	}
}

Scope (\_SB.PCI0.I2C0)
{
	Device (ATPB)
	{
		Name (_HID, "ATML0000")
		Name (_DDN, "Atmel Touchpad Bootloader")
		Name (_UID, 1)
		Name (_S0W, 4)
		Name (ISTP, 1) /* Touchpad */

		Name (_CRS, ResourceTemplate()
		{
			I2cSerialBus (
				0x26,                     // SlaveAddress
				ControllerInitiated,      // SlaveMode
				400000,                   // ConnectionSpeed
				AddressingMode7Bit,       // AddressingMode
				"\\_SB.PCI0.I2C0",        // ResourceSource
			)

			// GPIO13 is PIRQL
			Interrupt (ResourceConsumer, Edge, ActiveLow) { 27 }
		})

		Method (_STA)
		{
			If (LEqual (\S1EN, 1)) {
				Return (0xF)
			} Else {
				Return (0x0)
			}
		}
	}

	Device (ATPA)
	{
		Name (_HID, "ATML0000")
		Name (_DDN, "Atmel Touchpad")
		Name (_UID, 2)
		Name (_S0W, 4)
		Name (ISTP, 1) /* Touchpad */
		Name (GPIO, 9) /* TRACKPAD_INT_L (WAKE) */

		Name (_CRS, ResourceTemplate()
		{
			I2cSerialBus (
				0x4a,                     // SlaveAddress
				ControllerInitiated,      // SlaveMode
				400000,                   // ConnectionSpeed
				AddressingMode7Bit,       // AddressingMode
				"\\_SB.PCI0.I2C0",        // ResourceSource
			)

			// GPIO13 is PIRQL
			Interrupt (ResourceConsumer, Edge, ActiveLow) { 27 }
		})

		Name (_PRW, Package() { GPIO, 3 })

		Method (_DSW, 3, NotSerialized)
		{
			If (LEqual (Arg0, 1)) {
				// Enable GPIO as wake source
				\_SB.PCI0.LPCB.GPIO.GWAK (^GPIO)
			}
		}

		Method (_STA)
		{
			If (LEqual (\S1EN, 1)) {
				Return (0xF)
			} Else {
				Return (0x0)
			}
		}
	}

	Device (CODC)
	{
		/*
		 * TODO(kane): Need official HID.
		 *
		 */
		Name (_HID, "RT5677CE")
		Name (_DDN, "RT5667 Codec")
		Name (_UID, 1)
		Name (WAKE, 45) /* DSP_INT (use as codec wake) */

		Name (DCLK, 0)  /* RT5677_DMIC_CLK1 */
		Name (IN1, 1)   /* IN1 differential */
		Name (IN2, 0)   /* IN2 not differential */
		Name (OUT1, 1)  /* LOUT1 differential */
		Name (OUT2, 1)  /* LOUT2 differential */
		Name (OUT3, 0)  /* LOUT3 differential */
		Name (ASRC, 1)  /* Enable I2S1 ASRC */
		Name (JD1, 0)   /* JackDetect1 is not used */
		Name (JD2, 2)   /* Use GPIO5 as JackDetect2 */
		Name (JD3, 3)   /* Use GPIO6 as JackDetect3 */

		Name (_CRS, ResourceTemplate()
		{
			I2cSerialBus (
				0x2c,                     // SlaveAddress
				ControllerInitiated,      // SlaveMode
				400000,                   // ConnectionSpeed
				AddressingMode7Bit,       // AddressingMode
				"\\_SB.PCI0.I2C0",        // ResourceSource
			)

			/* GPIO46 is PIRQO (use HOTWORD_DET as codec IRQ) */
			Interrupt (ResourceConsumer, Edge, ActiveHigh) { 30 }

			/*
			 * Codec GPIOs are 1-based in the schematic
			 *
			 * [0] = Jack Detect (INPUT)
			 * [1] = Mic Present (INPUT)
			 * [2] = Interrupt to the host (OUTPUT)
			 * [3] = Interrupt to the host (OUTPUT)
			 * [4] = Headphone amp control (OUTPUT)
			 */

			/* Index 0:  Jack Detect - PLUG_DET is GPIO5 */
			GpioIo (Exclusive, PullUp, , , IoRestrictionInputOnly,
				"\\_SB.PCI0.I2C0.CODC") { 4 }

			/* Index 1:  Mic Present - MIC_PRESENT_L is GPIO6 */
			GpioIo (Exclusive, PullUp, , , IoRestrictionInputOnly,
				"\\_SB.PCI0.I2C0.CODC") { 5 }

			/* Index 2:  Codec IRQ - HOTWORD_DET_L is GPIO1 */
			GpioIo (Exclusive, PullUp, , , IoRestrictionOutputOnly,
				"\\_SB.PCI0.I2C0.CODC") { 0 }

			/* Index 3:  Codec Wake - DSP_INT is GPIO4 */
			GpioIo (Exclusive, PullUp, , , IoRestrictionOutputOnly,
				"\\_SB.PCI0.I2C0.CODC") { 3 }

			/* Index 4:  Headphone amp - HP_AMP_SHDN_L is GPIO2 */
			GpioIo (Exclusive, PullDown, , , IoRestrictionOutputOnly,
				"\\_SB.PCI0.I2C0.CODC") { 1 }
		})

		Name (_PRW, Package() { WAKE, 3 })

		Method (_DSW, 3, NotSerialized)
		{
			If (LEqual (Arg0, 1)) {
				// Enable GPIO as wake source
				\_SB.PCI0.LPCB.GPIO.GWAK (^WAKE)
			}
		}

		Method (_STA)
		{
			If (LEqual (\S1EN, 1)) {
				Return (0xF)
			} Else {
				Return (0x0)
			}
		}
	}
}

Scope (\_SB.PCI0.I2C1)
{
	Device (ATSB)
	{
		Name (_HID, "ATML0001")
		Name (_DDN, "Atmel Touchscreen Bootloader")
		Name (_UID, 4)
		Name (_S0W, 4)
		Name (ISTP, 0) /* TouchScreen */

		Name (_CRS, ResourceTemplate()
		{
			I2cSerialBus (
				0x25,                     // SlaveAddress
				ControllerInitiated,      // SlaveMode
				400000,                   // ConnectionSpeed
				AddressingMode7Bit,       // AddressingMode
				"\\_SB.PCI0.I2C1",        // ResourceSource
			)

			// GPIO14 is PIRQM
			Interrupt (ResourceConsumer, Edge, ActiveLow) { 28 }
		})

		Method (_STA)
		{
			If (LEqual (\S2EN, 1)) {
				Return (0xF)
			} Else {
				Return (0x0)
			}
		}
	}

	Device (ATSA)
	{
		Name (_HID, "ATML0001")
		Name (_DDN, "Atmel Touchscreen")
		Name (_UID, 5)
		Name (_S0W, 4)
		Name (ISTP, 0) /* TouchScreen */
		Name (GPIO, 14) /* TOUCH_INT_L */

		Name (_CRS, ResourceTemplate()
		{
			I2cSerialBus (
				0x4b,                     // SlaveAddress
				ControllerInitiated,      // SlaveMode
				400000,                   // ConnectionSpeed
				AddressingMode7Bit,       // AddressingMode
				"\\_SB.PCI0.I2C1",        // ResourceSource
			)

			// GPIO14 is PIRQM
			Interrupt (ResourceConsumer, Edge, ActiveLow) { 28 }
		})

#ifdef ENABLE_TOUCH_WAKE
		Name (_PRW, Package() { GPIO, 3 })

		Method (_DSW, 3, NotSerialized)
		{
			If (LEqual (Arg0, 1)) {
				// Enable GPIO as wake source
				\_SB.PCI0.LPCB.GPIO.GWAK (^GPIO)
			}
		}
#endif

		Method (_STA)
		{
			If (LEqual (\S2EN, 1)) {
				Return (0xF)
			} Else {
				Return (0x0)
			}
		}
	}
}