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25c6574da6
S0 values are incorrect and may even need to be calibrated on a per-system basis. Set them to 0 by default so that the EC doesn't return inaccurate remote temperature readings before calibration data is sent. BUG=chrome-os-partner:15174 BRANCH=link TEST=manual - temps -> remote temps are all not calibrated - t6cal 1 s0 9301 - temps -> PCH D-Object temp now returns a temperature Change-Id: I43facc60cf947ebd9441a8a629a76f7ffc8f3959 Signed-off-by: Randall Spangler <rspangler@chromium.org> Reviewed-on: https://gerrit.chromium.org/gerrit/35302 Reviewed-by: Bill Richardson <wfrichar@chromium.org>
39 lines
1.0 KiB
C
39 lines
1.0 KiB
C
/* Copyright (c) 2012 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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/* TMP006 temperature sensor module for Chrome EC */
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#ifndef __CROS_EC_TMP006_H
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#define __CROS_EC_TMP006_H
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#define TMP006_ADDR(PORT,REG) ((PORT << 16) + REG)
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#define TMP006_PORT(ADDR) (ADDR >> 16)
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#define TMP006_REG(ADDR) (ADDR & 0xffff)
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struct tmp006_t {
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const char* name;
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int addr; /* I2C address formed by TMP006_ADDR macro. */
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};
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/**
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* Poll all TMP006 sensors.
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*
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* @return 0 if successful, non-zero if error. */
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int tmp006_poll(void);
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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. The low bit in idx indicates whether
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* to read die temperature or object temperature. The
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* other bits serve as internal index to tmp006 module.
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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 tmp006_get_val(int idx, int *temp_ptr);
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#endif /* __CROS_EC_TMP006_H */
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