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8f2e99da75
This will be used in a follow-up CL to return specific error codes (not powered, not calibrated, etc.) BUG=chrome-os-partner:15174 BRANCH=link TEST=manual Power on system. 'temps' should return all good temps. Power off system (into S5) Only ECInternal temp should work; others should return Error 1 'gpioset enable_vs 1' and wait a second Now all the I2C temps should display good data, but PECI will still be error 1. Change-Id: I925434e71653ad53ad76bad992a7a8fdeadb088c Signed-off-by: Randall Spangler <rspangler@chromium.org> Reviewed-on: https://gerrit.chromium.org/gerrit/35286 Reviewed-by: Bill Richardson <wfrichar@chromium.org>
40 lines
1.1 KiB
C
40 lines
1.1 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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float S0; /* Sensitivity factor */
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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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