| /* |
| * This file is part of the coreboot project. |
| * |
| * Copyright (C) 2014 Google Inc. |
| * Copyright (C) 2015 Intel Corporation. |
| * |
| * 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 <soc/gpio.h> |
| |
| #define GPIOTXSTATE_MASK 0x1 |
| #define GPIORXSTATE_MASK 0x1 |
| |
| Device (GPIO) |
| { |
| Name (_HID, "INT344B") |
| Name (_UID, 1) |
| Name (_DDN, "GPIO Controller") |
| |
| Name (RBUF, ResourceTemplate() |
| { |
| Memory32Fixed (ReadWrite, 0, 0, COM0) |
| Memory32Fixed (ReadWrite, 0, 0, COM1) |
| Memory32Fixed (ReadWrite, 0, 0, COM3) |
| Interrupt (ResourceConsumer, Level, ActiveLow, Shared,,, GIRQ) |
| { 0 } |
| }) |
| |
| Method (_CRS, 0, NotSerialized) |
| { |
| /* GPIO Community 0 */ |
| CreateDWordField (^RBUF, ^COM0._BAS, BAS0) |
| CreateDWordField (^RBUF, ^COM0._LEN, LEN0) |
| Store (^^PCRB (PID_GPIOCOM0), BAS0) |
| Store (GPIO_BASE_SIZE, LEN0) |
| |
| /* GPIO Community 1 */ |
| CreateDWordField (^RBUF, ^COM1._BAS, BAS1) |
| CreateDWordField (^RBUF, ^COM1._LEN, LEN1) |
| Store (^^PCRB (PID_GPIOCOM1), BAS1) |
| Store (GPIO_BASE_SIZE, LEN1) |
| |
| /* GPIO Community 3 */ |
| CreateDWordField (^RBUF, ^COM3._BAS, BAS3) |
| CreateDWordField (^RBUF, ^COM3._LEN, LEN3) |
| Store (^^PCRB (PID_GPIOCOM3), BAS3) |
| Store (GPIO_BASE_SIZE, LEN3) |
| |
| CreateDWordField (^RBUF, ^GIRQ._INT, IRQN) |
| And (^^PCRR (PID_GPIOCOM0, GPIO_MISCCFG), |
| GPIO_DRIVER_IRQ_ROUTE_MASK, Local0) |
| |
| If (LEqual (Local0, GPIO_DRIVER_IRQ_ROUTE_IRQ14)) { |
| Store (GPIO_IRQ14, IRQN) |
| } Else { |
| Store (GPIO_IRQ15, IRQN) |
| } |
| |
| Return (RBUF) |
| } |
| |
| Method (_STA, 0, NotSerialized) |
| { |
| Return (0xF) |
| } |
| } |
| |
| /* |
| * Get GPIO DW0 Address |
| * Arg0 - GPIO Number |
| */ |
| Method (GADD, 1, NotSerialized) |
| { |
| #if IS_ENABLED(CONFIG_SKYLAKE_SOC_PCH_H) |
| /* GPIO Community 0 */ |
| If (LAnd (LGreaterEqual (Arg0, GPP_A0), LLessEqual (Arg0, GPP_B23))) |
| { |
| Store (PID_GPIOCOM0, Local0) |
| Subtract (Arg0, GPP_A0, Local1) |
| } |
| /* GPIO Community 1 */ |
| If (LAnd (LGreaterEqual (Arg0, GPP_C0), LLessEqual (Arg0, GPP_H23))) |
| { |
| Store (PID_GPIOCOM1, Local0) |
| Subtract (Arg0, GPP_C0, Local1) |
| } |
| /* GPIO Community 03 */ |
| If (LAnd (LGreaterEqual (Arg0, GPP_I0), LLessEqual (Arg0, GPP_I10))) |
| { |
| Store (PID_GPIOCOM3, Local0) |
| Subtract (Arg0, GPP_I0, Local1) |
| } |
| #else |
| /* GPIO Community 0 */ |
| If (LAnd (LGreaterEqual (Arg0, GPP_A0), LLessEqual (Arg0, GPP_B23))) |
| { |
| Store (PID_GPIOCOM0, Local0) |
| Subtract (Arg0, GPP_A0, Local1) |
| } |
| /* GPIO Community 1 */ |
| If (LAnd (LGreaterEqual (Arg0, GPP_C0), LLessEqual (Arg0, GPP_E23))) |
| { |
| Store (PID_GPIOCOM1, Local0) |
| Subtract (Arg0, GPP_C0, Local1) |
| } |
| /* GPIO Community 03*/ |
| If (LAnd (LGreaterEqual (Arg0, GPP_F0), LLessEqual (Arg0, GPP_G7))) |
| { |
| Store (PID_GPIOCOM3, Local0) |
| Subtract (Arg0, GPP_F0, Local1) |
| } |
| #endif /* CONFIG_SKYLAKE_SOC_PCH_H */ |
| Store (PCRB (Local0), Local2) |
| Add (Local2, PAD_CFG_BASE, Local2) |
| Return (Add (Local2, Multiply (Local1, 8))) |
| } |
| |
| /* |
| * Get GPIO Rx Value |
| * Arg0 - GPIO Number |
| */ |
| Method (GRXS, 1, Serialized) |
| { |
| OperationRegion (PREG, SystemMemory, GADD (Arg0), 4) |
| Field (PREG, AnyAcc, NoLock, Preserve) |
| { |
| VAL0, 32 |
| } |
| And (GPIORXSTATE_MASK, ShiftRight (VAL0, PAD_CFG0_RX_STATE_BIT), Local0) |
| |
| Return (Local0) |
| } |
| |
| /* |
| * Get GPIO Tx Value |
| * Arg0 - GPIO Number |
| */ |
| Method (GTXS, 1, Serialized) |
| { |
| OperationRegion (PREG, SystemMemory, GADD (Arg0), 4) |
| Field (PREG, AnyAcc, NoLock, Preserve) |
| { |
| VAL0, 32 |
| } |
| And (GPIOTXSTATE_MASK, ShiftRight (VAL0, PAD_CFG0_TX_STATE_BIT), Local0) |
| |
| Return (Local0) |
| } |
| |
| /* |
| * Set GPIO Tx Value |
| * Arg0 - GPIO Number |
| */ |
| Method (STXS, 1, Serialized) |
| { |
| OperationRegion (PREG, SystemMemory, GADD (Arg0), 4) |
| Field (PREG, AnyAcc, NoLock, Preserve) |
| { |
| VAL0, 32 |
| } |
| Or (GPIOTXSTATE_MASK, VAL0, VAL0) |
| } |
| |
| /* |
| * Clear GPIO Tx Value |
| * Arg0 - GPIO Number |
| */ |
| Method (CTXS, 1, Serialized) |
| { |
| OperationRegion (PREG, SystemMemory, GADD (Arg0), 4) |
| Field (PREG, AnyAcc, NoLock, Preserve) |
| { |
| VAL0, 32 |
| } |
| And (Not (GPIOTXSTATE_MASK), VAL0, VAL0) |
| } |