| /* SPDX-License-Identifier: GPL-2.0-only */ |
| |
| #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) |
| { |
| Local0 = EC_READ (0x52) |
| If (And (Local0, EC_ERROR_MASK)) { |
| Return (0) |
| } |
| Local0 *= 10 |
| Return (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) |
| Local0 = SEND_EC_COMMAND (0x20) /* GET_CPUTEMP */ |
| If (And (Local0, EC_ERROR_MASK)) { |
| Release (EC_MUTEX) |
| Return (0) |
| } |
| Local0 = RECV_EC_DATA () /* Temp low byte in 64th °C */ |
| If (And (Local0, EC_ERROR_MASK)) { |
| Release (EC_MUTEX) |
| Return (0) |
| } |
| Local1 = RECV_EC_DATA () /* Temp high byte in 64th °C */ |
| If (And (Local1, EC_ERROR_MASK)) { |
| Release (EC_MUTEX) |
| Return (0) |
| } |
| Release (EC_MUTEX) |
| |
| Or (Local1 << 8, Local0, Local0) |
| Local0 *= 10 / 64 /* Convert to 10th °C */ |
| Return (Local0 + 2732) /* Return as 10th Kelvin */ |
| } |
| } |
| #endif |