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6f8e276cc8
This just replaces all the "X - 273", "Y + 273" stuff with a macro. BUG=none BRANCH=falco,peppy TEST=manual Run the EC console command "temps". It should print human-readable things. Change-Id: Icc4284c89fdbc0cd3b206a0faacf121973652a63 Signed-off-by: Bill Richardson <wfrichar@chromium.org> Reviewed-on: https://gerrit.chromium.org/gerrit/65005 Reviewed-by: Randall Spangler <rspangler@chromium.org>
110 lines
3.1 KiB
C
110 lines
3.1 KiB
C
/* Copyright (c) 2013 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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/* common.h - Common includes for Chrome EC */
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#ifndef __CROS_EC_COMMON_H
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#define __CROS_EC_COMMON_H
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#include <stdint.h>
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/*
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* Macros to concatenate 2 - 4 tokens together to form a single token.
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* Multiple levels of nesting are required to convince the preprocessor to
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* expand currently-defined tokens before concatenation.
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*
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* For example, if you have
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* #define FOO 1
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* #define BAR1 42
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* Then
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* #define BAZ CONCAT2(BAR, FOO)
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* Will evaluate to BAR1, which then evaluates to 42.
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*/
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#define CONCAT_STAGE_1(w, x, y, z) w ## x ## y ## z
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#define CONCAT2(w, x) CONCAT_STAGE_1(w, x, , )
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#define CONCAT3(w, x, y) CONCAT_STAGE_1(w, x, y, )
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#define CONCAT4(w, x, y, z) CONCAT_STAGE_1(w, x, y, z)
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/* Macros to access registers */
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#define REG32(addr) (*(volatile uint32_t *)(addr))
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#define REG16(addr) (*(volatile uint16_t *)(addr))
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/*
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* Define __aligned(n) and __packed if someone hasn't beat us to it. Linux
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* kernel style checking prefers these over __attribute__((packed)) and
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* __attribute__((aligned(n))).
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*/
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#ifndef __aligned
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#define __aligned(n) __attribute__((aligned(n)))
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#endif
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#ifndef __packed
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#define __packed __attribute__((packed))
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#endif
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/* There isn't really a better place for this */
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#define C_TO_K(temp_c) ((temp_c) + 273)
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#define K_TO_C(temp_c) ((temp_c) - 273)
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#define CELSIUS_TO_DECI_KELVIN(temp_c) ((temp_c) * 10 + 2731)
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#define DECI_KELVIN_TO_CELSIUS(temp_dk) ((temp_dk - 2731) / 10)
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/* Include top-level configuration file */
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#include "config.h"
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/* List of common error codes that can be returned */
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enum ec_error_list {
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/* Success - no error */
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EC_SUCCESS = 0,
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/* Unknown error */
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EC_ERROR_UNKNOWN = 1,
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/* Function not implemented yet */
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EC_ERROR_UNIMPLEMENTED = 2,
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/* Overflow error; too much input provided. */
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EC_ERROR_OVERFLOW = 3,
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/* Timeout */
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EC_ERROR_TIMEOUT = 4,
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/* Invalid argument */
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EC_ERROR_INVAL = 5,
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/* Already in use, or not ready yet */
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EC_ERROR_BUSY = 6,
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/* Access denied */
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EC_ERROR_ACCESS_DENIED = 7,
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/* Failed because component does not have power */
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EC_ERROR_NOT_POWERED = 8,
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/* Failed because component is not calibrated */
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EC_ERROR_NOT_CALIBRATED = 9,
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/* Invalid console command param (PARAMn means parameter n is bad) */
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EC_ERROR_PARAM1 = 11,
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EC_ERROR_PARAM2 = 12,
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EC_ERROR_PARAM3 = 13,
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EC_ERROR_PARAM4 = 14,
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EC_ERROR_PARAM5 = 15,
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EC_ERROR_PARAM6 = 16,
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EC_ERROR_PARAM7 = 17,
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EC_ERROR_PARAM8 = 18,
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EC_ERROR_PARAM9 = 19,
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EC_ERROR_PARAM_COUNT = 20, /* Wrong number of params */
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/* Module-internal error codes may use this range. */
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EC_ERROR_INTERNAL_FIRST = 0x10000,
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EC_ERROR_INTERNAL_LAST = 0x1FFFF
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};
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/*
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* Define test_mockable and test_mockable_static for mocking
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* functions.
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*/
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#ifdef TEST_BUILD
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#define test_mockable __attribute__((weak))
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#define test_mockable_static __attribute__((weak))
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#define test_export_static
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#else
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#define test_mockable
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#define test_mockable_static static
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#define test_export_static static
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#endif
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#endif /* __CROS_EC_COMMON_H */
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