| /* |
| * This file is part of the coreboot project. |
| * |
| * Copyright (C) 2013 secunet Security Networks AG |
| * |
| * 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. |
| */ |
| |
| #ifdef IT8516E_FIRST_DATA |
| Device (PM1) { |
| Name (_HID, EisaId("PNP0C02")) |
| Name (_STR, Unicode("IT8516E PM Channel 1")) |
| Name (_UID, SUPERIO_UID(PM, 1)) |
| |
| /* |
| * The EC firmware exposes CPU temperature through ec ram |
| * on the first PM channel. |
| */ |
| |
| #undef EC_DATA_IO |
| #define EC_DATA_IO IT8516E_FIRST_DATA |
| #undef EC_SC_IO |
| #define EC_SC_IO IT8516E_FIRST_SC |
| #include <ec/acpi/ec.asl> |
| |
| Method (_CRS) |
| { |
| /* Announce the used i/o ports to the OS */ |
| Return (ResourceTemplate () { |
| IO (Decode16, IT8516E_FIRST_DATA, IT8516E_FIRST_DATA, 0x01, 0x01) |
| IO (Decode16, IT8516E_FIRST_SC, IT8516E_FIRST_SC, 0x01, 0x01) |
| }) |
| } |
| |
| /* |
| * Get CPU temperature from first PM channel (in 10th Kelvin) |
| */ |
| Method (CTK) |
| { |
| Store (EC_READ (0x52), Local0) |
| If (And (Local0, EC_ERROR_MASK)) { |
| Return (0) |
| } |
| Multiply (Local0, 10, Local0) /* Convert to 10th °C */ |
| Return (Add (Local0, 2732)) /* Return as 10th Kelvin */ |
| } |
| } |
| #endif |
| |
| #ifdef IT8516E_SECOND_DATA |
| Device (PM2) { |
| Name (_HID, EisaId("PNP0C02")) |
| Name (_STR, Unicode("IT8516E PM Channel 2")) |
| Name (_UID, SUPERIO_UID(PM, 2)) |
| |
| /* |
| * The EC firmware exposes fan and GPIO control through the |
| * second PM channel. |
| */ |
| |
| #undef EC_DATA_IO |
| #define EC_DATA_IO IT8516E_SECOND_DATA |
| #undef EC_SC_IO |
| #define EC_SC_IO IT8516E_SECOND_SC |
| #include <ec/acpi/ec.asl> |
| |
| Method (_CRS) |
| { |
| /* Announce the used i/o ports to the OS */ |
| Return (ResourceTemplate () { |
| IO (Decode16, IT8516E_SECOND_DATA, IT8516E_SECOND_DATA, 0x01, 0x01) |
| IO (Decode16, IT8516E_SECOND_SC, IT8516E_SECOND_SC, 0x01, 0x01) |
| }) |
| } |
| |
| /* |
| * Get CPU temperature from second PM channel (in 10th Kelvin) |
| */ |
| Method (CTK) |
| { |
| Acquire (EC_MUTEX, 0xffff) |
| Store (SEND_EC_COMMAND (0x20), Local0) /* GET_CPUTEMP */ |
| If (And (Local0, EC_ERROR_MASK)) { |
| Release (EC_MUTEX) |
| Return (0) |
| } |
| Store (RECV_EC_DATA (), Local0) /* Temp low byte in 64th °C */ |
| If (And (Local0, EC_ERROR_MASK)) { |
| Release (EC_MUTEX) |
| Return (0) |
| } |
| Store (RECV_EC_DATA (), Local1) /* Temp high byte in 64th °C */ |
| If (And (Local1, EC_ERROR_MASK)) { |
| Release (EC_MUTEX) |
| Return (0) |
| } |
| Release (EC_MUTEX) |
| |
| Or (ShiftLeft (Local1, 8), Local0, Local0) |
| Store (Divide (Multiply (Local0, 10), 64), Local0) /* Convert to 10th °C */ |
| Return (Add (Local0, 2732)) /* Return as 10th Kelvin */ |
| } |
| } |
| #endif |