mirror of
https://github.com/Telecominfraproject/OpenCellular.git
synced 2026-01-17 02:21:15 +00:00
27f92a378a
This adds the driver for the SB-TSI temp sensor. This is a sensor on the AMD AP SOC (Stoney Ridege FT2) that acts like an 8-pin temp sensor with an I2C interface. BUG=b:69379715 BRANCH=None TEST=Build Change-Id: Iaafe6c7beb3e02e4e341617e8f117c03c0a882a2 Signed-off-by: Alec Thilenius <athilenius@chromium.org> Reviewed-on: https://chromium-review.googlesource.com/833346 Commit-Ready: Alec Thilenius <athilenius@google.com> Tested-by: Alec Thilenius <athilenius@google.com> Reviewed-by: Edward Hill <ecgh@chromium.org>
47 lines
1.3 KiB
C
47 lines
1.3 KiB
C
/* 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.
|
|
*/
|
|
|
|
/*
|
|
* SB-TSI: SB Temperature Sensor Interface.
|
|
* This is an I2C slave temp sensor on the AMD Stony Ridge FT4 SOC.
|
|
*/
|
|
|
|
#ifndef __CROS_EC_SB_TSI_H
|
|
#define __CROS_EC_SB_TSI_H
|
|
|
|
#define SB_TSI_I2C_ADDR 0x98 /* 7-bit address is 0x4C */
|
|
|
|
/* G781 register */
|
|
#define SB_TSI_TEMP_H 0x01
|
|
#define SB_TSI_STATUS 0x02
|
|
#define SB_TSI_CONFIG_1 0x03
|
|
#define SB_TSI_UPDATE_RATE 0x04
|
|
#define SB_TSI_HIGH_TEMP_THRESHOLD_H 0x07
|
|
#define SB_TSI_LOW_TEMP_THRESHOLD_H 0x08
|
|
#define SB_TSI_CONFIG_2 0x09
|
|
#define SB_TSI_TEMP_L 0x10
|
|
#define SB_TSI_TEMP_OFFSET_H 0x11
|
|
#define SB_TSI_TEMP_OFFSET_L 0x12
|
|
#define SB_TSI_HIGH_TEMP_THRESHOLD_L 0x13
|
|
#define SB_TSI_LOW_TEMP_THRESHOLD_L 0x14
|
|
#define SB_TSI_TIMEOUT_CONFIG 0x22
|
|
#define SB_TSI_PSTATE_LIMIT_CONFIG 0x2F
|
|
#define SB_TSI_ALERT_THRESHOLD 0x32
|
|
#define SB_TSI_ALERT_CONFIG 0xBF
|
|
#define SB_TSI_MANUFACTURE_ID 0xFE
|
|
#define SB_TSI_REVISION 0xFF
|
|
|
|
/**
|
|
* Get the value of a sensor in K.
|
|
*
|
|
* @param idx Index to read. Only 0 is valid for sb_tsi.
|
|
* @param temp_ptr Destination for temperature in K.
|
|
*
|
|
* @return EC_SUCCESS if successful, non-zero if error.
|
|
*/
|
|
int sb_tsi_get_val(int idx, int *temp_ptr);
|
|
|
|
#endif /* __CROS_EC_SB_TSI_H */
|