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73d0b9ca9f
Add support for the Texas Instruments TMP112 I2C temperature
sensor. The sensor provides a single temperature value.
BUG=none
BRANCH=none
TEST=Ran 'temp' console command over and over. Verified values with
digital thermometer.
Change-Id: Ida4c082309d245c3f7c6282ecea74ce5af746e43
Signed-off-by: Moritz Fischer <moritz.fischer@ettus.com>
Reviewed-on: https://chromium-review.googlesource.com/418488
Reviewed-by: Randall Spangler <rspangler@chromium.org>
30 lines
703 B
C
30 lines
703 B
C
/* Copyright (c) 2016 The Chromium OS Authors. All rights reserved.
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*/
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#ifndef __CROS_EC_TMP112_H
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#define __CROS_EC_TMP112_H
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#include "i2c.h"
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#define TMP112_I2C_ADDR 0x90 | I2C_FLAG_BIG_ENDIAN
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#define TMP112_REG_TEMP 0x00
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#define TMP112_REG_CONF 0x01
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#define TMP112_REG_HYST 0x02
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#define TMP112_REG_MAX 0x03
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/**
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* Get the last polled value of a sensor.
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*
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* @param idx Index to read. (Ignored)
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*
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* @param temp_ptr Destination for temperature in K.
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*
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* @return EC_SUCCESS if successful, non-zero if error.
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*/
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int tmp112_get_val(int idx, int *temp_ptr);
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#endif /* __CROS_EC_TMP112_H */
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