| /* Copyright 2016 The Chromium OS Authors. All rights reserved. |
| * Use of this source code is governed by a BSD-style license that can be |
| * found in the LICENSE file. |
| */ |
| |
| /* G781/G782 temperature sensor module for Chrome EC */ |
| |
| #ifndef __CROS_EC_G78X_H |
| #define __CROS_EC_G78X_H |
| |
| #if defined(CONFIG_TEMP_SENSOR_G781) && defined(CONFIG_TEMP_SENSOR_G782) |
| #error Cannot support both G781 and G782 together! |
| #endif |
| |
| #define G78X_I2C_ADDR_FLAGS 0x4C |
| |
| #define G78X_IDX_INTERNAL 0 |
| #define G78X_IDX_EXTERNAL1 1 |
| #define G78X_IDX_EXTERNAL2 2 |
| |
| #if defined(CONFIG_TEMP_SENSOR_G781) |
| /* G781 register */ |
| #define G78X_TEMP_LOCAL 0x00 |
| #define G78X_TEMP_REMOTE1 0x01 |
| #define G78X_STATUS 0x02 |
| #define G78X_CONFIGURATION_R 0x03 |
| #define G78X_CONVERSION_RATE_R 0x04 |
| #define G78X_LOCAL_TEMP_HIGH_LIMIT_R 0x05 |
| #define G78X_LOCAL_TEMP_LOW_LIMIT_R 0x06 |
| #define G78X_REMOTE1_TEMP_HIGH_LIMIT_R 0x07 |
| #define G78X_REMOTE1_TEMP_LOW_LIMIT_R 0x08 |
| #define G78X_CONFIGURATION_W 0x09 |
| #define G78X_CONVERSION_RATE_W 0x0a |
| #define G78X_LOCAL_TEMP_HIGH_LIMIT_W 0x0b |
| #define G78X_LOCAL_TEMP_LOW_LIMIT_W 0x0c |
| #define G78X_REMOTE1_TEMP_HIGH_LIMIT_W 0x0d |
| #define G78X_REMOTE1_TEMP_LOW_LIMIT_W 0x0e |
| #define G78X_ONESHOT 0x0f |
| #define G78X_REMOTE1_TEMP_EXTENDED 0x10 |
| #define G78X_REMOTE1_TEMP_OFFSET_HIGH 0x11 |
| #define G78X_REMOTE1_TEMP_OFFSET_EXTD 0x12 |
| #define G78X_REMOTE1_T_HIGH_LIMIT_EXTD 0x13 |
| #define G78X_REMOTE1_T_LOW_LIMIT_EXTD 0x14 |
| #define G78X_REMOTE1_TEMP_THERM_LIMIT 0x19 |
| #define G78X_LOCAL_TEMP_THERM_LIMIT 0x20 |
| #define G78X_THERM_HYSTERESIS 0x21 |
| #define G78X_ALERT_FAULT_QUEUE_CODE 0x22 |
| #define G78X_MANUFACTURER_ID 0xFE |
| #define G78X_DEVICE_ID 0xFF |
| |
| /* Config register bits */ |
| #define G78X_CONFIGURATION_STANDBY BIT(6) |
| #define G78X_CONFIGURATION_ALERT_MASK BIT(7) |
| |
| /* Status register bits */ |
| #define G78X_STATUS_LOCAL_TEMP_THERM_ALARM BIT(0) |
| #define G78X_STATUS_REMOTE1_TEMP_THERM_ALARM BIT(1) |
| #define G78X_STATUS_REMOTE1_TEMP_FAULT BIT(2) |
| #define G78X_STATUS_REMOTE1_TEMP_LOW_ALARM BIT(3) |
| #define G78X_STATUS_REMOTE1_TEMP_HIGH_ALARM BIT(4) |
| #define G78X_STATUS_LOCAL_TEMP_LOW_ALARM BIT(5) |
| #define G78X_STATUS_LOCAL_TEMP_HIGH_ALARM BIT(6) |
| #define G78X_STATUS_BUSY BIT(7) |
| |
| #elif defined(CONFIG_TEMP_SENSOR_G782) |
| /* G782 register */ |
| #define G78X_TEMP_LOCAL 0x00 |
| #define G78X_TEMP_REMOTE1 0x01 |
| #define G78X_TEMP_REMOTE2 0x02 |
| #define G78X_STATUS 0x03 |
| #define G78X_CONFIGURATION_R 0x04 |
| #define G78X_CONFIGURATION_W 0x04 |
| #define G78X_CONVERSION_RATE_R 0x05 |
| #define G78X_CONVERSION_RATE_W 0x05 |
| #define G78X_LOCAL_TEMP_HIGH_LIMIT_R 0x06 |
| #define G78X_LOCAL_TEMP_HIGH_LIMIT_W 0x06 |
| #define G78X_LOCAL_TEMP_LOW_LIMIT_R 0x07 |
| #define G78X_LOCAL_TEMP_LOW_LIMIT_W 0x07 |
| #define G78X_REMOTE1_TEMP_HIGH_LIMIT_R 0x08 |
| #define G78X_REMOTE1_TEMP_HIGH_LIMIT_W 0x08 |
| #define G78X_REMOTE1_TEMP_LOW_LIMIT_R 0x09 |
| #define G78X_REMOTE1_TEMP_LOW_LIMIT_W 0x09 |
| #define G78X_REMOTE2_TEMP_HIGH_LIMIT_R 0x0a |
| #define G78X_REMOTE2_TEMP_HIGH_LIMIT_W 0x0a |
| #define G78X_REMOTE2_TEMP_LOW_LIMIT_R 0x0b |
| #define G78X_REMOTE2_TEMP_LOW_LIMIT_W 0x0b |
| #define G78X_ONESHOT 0x0c |
| #define G78X_REMOTE1_TEMP_EXTENDED 0x0d |
| #define G78X_REMOTE1_TEMP_OFFSET_HIGH 0x0e |
| #define G78X_REMOTE1_TEMP_OFFSET_EXTD 0x0f |
| #define G78X_REMOTE1_T_HIGH_LIMIT_EXTD 0x10 |
| #define G78X_REMOTE1_T_LOW_LIMIT_EXTD 0x11 |
| #define G78X_REMOTE1_TEMP_THERM_LIMIT 0x12 |
| #define G78X_REMOTE2_TEMP_EXTENDED 0x13 |
| #define G78X_REMOTE2_TEMP_OFFSET_HIGH 0x14 |
| #define G78X_REMOTE2_TEMP_OFFSET_EXTD 0x15 |
| #define G78X_REMOTE2_T_HIGH_LIMIT_EXTD 0x16 |
| #define G78X_REMOTE2_T_LOW_LIMIT_EXTD 0x17 |
| #define G78X_REMOTE2_TEMP_THERM_LIMIT 0x18 |
| #define G78X_STATUS1 0x19 |
| #define G78X_LOCAL_TEMP_THERM_LIMIT 0x20 |
| #define G78X_THERM_HYSTERESIS 0x21 |
| #define G78X_ALERT_FAULT_QUEUE_CODE 0x22 |
| #define G78X_MANUFACTURER_ID 0xFE |
| #define G78X_DEVICE_ID 0xFF |
| |
| /* Config register bits */ |
| #define G78X_CONFIGURATION_REMOTE2_DIS BIT(5) |
| #define G78X_CONFIGURATION_STANDBY BIT(6) |
| #define G78X_CONFIGURATION_ALERT_MASK BIT(7) |
| |
| /* Status register bits */ |
| #define G78X_STATUS_LOCAL_TEMP_LOW_ALARM BIT(0) |
| #define G78X_STATUS_LOCAL_TEMP_HIGH_ALARM BIT(1) |
| #define G78X_STATUS_LOCAL_TEMP_THERM_ALARM BIT(2) |
| #define G78X_STATUS_REMOTE2_TEMP_THERM_ALARM BIT(3) |
| #define G78X_STATUS_REMOTE1_TEMP_THERM_ALARM BIT(4) |
| #define G78X_STATUS_REMOTE2_TEMP_FAULT BIT(5) |
| #define G78X_STATUS_REMOTE1_TEMP_FAULT BIT(6) |
| #define G78X_STATUS_BUSY BIT(7) |
| |
| /* Status1 register bits */ |
| #define G78X_STATUS_REMOTE2_TEMP_LOW_ALARM BIT(4) |
| #define G78X_STATUS_REMOTE2_TEMP_HIGH_ALARM BIT(5) |
| #define G78X_STATUS_REMOTE1_TEMP_LOW_ALARM BIT(6) |
| #define G78X_STATUS_REMOTE1_TEMP_HIGH_ALARM BIT(7) |
| #endif |
| |
| /** |
| * Get the last polled value of a sensor. |
| * |
| * @param idx Index to read. Idx indicates whether to read die |
| * temperature or external temperature. |
| * @param temp_ptr Destination for temperature in K. |
| * |
| * @return EC_SUCCESS if successful, non-zero if error. |
| */ |
| int g78x_get_val(int idx, int *temp_ptr); |
| |
| #endif /* __CROS_EC_G78X_H */ |
