| Nico Huber | e34e178 | 2016-09-29 12:33:01 +0200 | [diff] [blame] | 1 | /* |
| 2 | * This file is part of the coreboot project. |
| 3 | * |
| 4 | * Copyright (C) 2011 The ChromiumOS Authors. All rights reserved. |
| 5 | * Copyright (C) 2016 secunet Security Networks AG |
| 6 | * |
| 7 | * This program is free software; you can redistribute it and/or modify |
| 8 | * it under the terms of the GNU General Public License as published by |
| 9 | * the Free Software Foundation; either version 2 of the License, or |
| 10 | * (at your option) any later version. |
| 11 | * |
| 12 | * This program is distributed in the hope that it will be useful, |
| 13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 15 | * GNU General Public License for more details. |
| 16 | */ |
| 17 | |
| 18 | #ifndef SUPERIO_ITE_ENV_CTRL_CHIP_H |
| 19 | #define SUPERIO_ITE_ENV_CTRL_CHIP_H |
| 20 | |
| 21 | #define ITE_EC_TMPIN_CNT 3 |
| 22 | #define ITE_EC_FAN_CNT 3 |
| 23 | |
| 24 | /* Supported thermal mode on TMPINx */ |
| 25 | enum ite_ec_thermal_mode { |
| 26 | THERMAL_MODE_DISABLED = 0, |
| 27 | THERMAL_DIODE, |
| 28 | THERMAL_RESISTOR, |
| 29 | }; |
| 30 | |
| 31 | /* Bit mask for voltage pins VINx */ |
| 32 | enum ite_ec_voltage_pin { |
| 33 | VIN0 = 0x01, |
| 34 | VIN1 = 0x02, |
| 35 | VIN2 = 0x04, |
| 36 | VIN3 = 0x08, |
| 37 | VIN4 = 0x10, |
| 38 | VIN5 = 0x20, |
| 39 | VIN6 = 0x40, |
| 40 | VIN7 = 0x80, |
| 41 | VIN_ALL = 0xff |
| 42 | }; |
| 43 | |
| 44 | enum ite_ec_fan_mode { |
| 45 | FAN_IGNORE = 0, |
| 46 | FAN_MODE_ON, |
| 47 | FAN_MODE_OFF, |
| 48 | FAN_SMART_SOFTWARE, |
| 49 | FAN_SMART_AUTOMATIC, |
| 50 | }; |
| 51 | |
| 52 | struct ite_ec_fan_smartconfig { |
| 53 | u8 tmpin; /* select TMPINx (1, 2 or 3) */ |
| 54 | u8 tmp_off; /* turn fan off below (°C) */ |
| 55 | u8 tmp_start; /* turn fan on above (°C) */ |
| 56 | u8 tmp_full; /* 100% duty cycle above (°C) */ |
| 57 | u8 tmp_delta; /* adapt fan speed when temperature |
| 58 | changed by at least `tmp_delta`°C */ |
| 59 | u8 smoothing; /* enable smoothing */ |
| 60 | u8 pwm_start; /* start at this duty cycle (%) */ |
| 61 | u8 slope; /* increase duty cycle by `slope`%/°C */ |
| 62 | }; |
| 63 | |
| 64 | struct ite_ec_fan_config { |
| 65 | enum ite_ec_fan_mode mode; |
| 66 | struct ite_ec_fan_smartconfig smart; |
| 67 | }; |
| 68 | |
| 69 | struct ite_ec_config { |
| 70 | /* |
| 71 | * Enable external temperature sensor to use PECI GetTemp() |
| 72 | * command and store in register TMPIN 1, 2, or 3. |
| 73 | */ |
| 74 | u8 peci_tmpin; |
| 75 | |
| 76 | /* |
| 77 | * Enable thermal mode on TMPINx. |
| 78 | */ |
| 79 | enum ite_ec_thermal_mode tmpin_mode[ITE_EC_TMPIN_CNT]; |
| 80 | |
| 81 | /* |
| 82 | * Enable reading of voltage pins VINx. |
| 83 | */ |
| 84 | enum ite_ec_voltage_pin vin_mask; |
| 85 | |
| 86 | /* |
| 87 | * Enable a FAN in given mode. |
| 88 | */ |
| 89 | struct ite_ec_fan_config fan[ITE_EC_FAN_CNT]; |
| 90 | }; |
| 91 | |
| 92 | /* Some shorthands for device trees */ |
| 93 | #define TMPIN1 ec.tmpin_mode[0] |
| 94 | #define TMPIN2 ec.tmpin_mode[1] |
| 95 | #define TMPIN3 ec.tmpin_mode[2] |
| 96 | #define FAN1 ec.fan[0] |
| 97 | #define FAN2 ec.fan[1] |
| 98 | #define FAN3 ec.fan[2] |
| 99 | |
| 100 | #endif /* SUPERIO_ITE_ENV_CTRL_CHIP_H */ |