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104f811e67
This unifies all the EC header files to use __CROS_EC_FILENAME_H as the include guard. Well, except for test/ util/ and extra/ which use __TEST_ __UTIL_ and __EXTRA_ prefixes respectively. BUG=chromium:496895 BRANCH=none TEST=make buildall -j Signed-off-by: Bill Richardson <wfrichar@chromium.org> Change-Id: Iea71b3a08bdec94a11239de810a2b2e152b15029 Reviewed-on: https://chromium-review.googlesource.com/278121 Reviewed-by: Randall Spangler <rspangler@chromium.org>
63 lines
1.4 KiB
C
63 lines
1.4 KiB
C
/* Copyright (c) 2014 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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/* NPCX-specific MFT module for Chrome EC */
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#ifndef __CROS_EC_FAN_CHIP_H
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#define __CROS_EC_FAN_CHIP_H
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/* MFT module select */
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enum npcx_mft_module {
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NPCX_MFT_MODULE_1 = 0,
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NPCX_MFT_MODULE_2 = 0,
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NPCX_MFT_MODULE_3 = 0,
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/* Number of MFT modules */
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NPCX_MFT_MODULE_COUNT
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};
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/* MFT module port */
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enum npcx_mft_module_port {
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NPCX_MFT_MODULE_PORT_TA,
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NPCX_MFT_MODULE_PORT_TB,
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/* Number of MFT module ports */
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NPCX_MFT_MODULE_PORT_COUNT
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};
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/* Data structure to define MFT channels. */
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struct mft_t {
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/* MFT module ID */
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enum npcx_mft_module module;
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/* MFT port */
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enum npcx_mft_module_port port;
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/* MFT TCNT default count */
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uint32_t default_count;
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/* MFT freq */
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uint32_t freq;
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};
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/* Tacho measurement state */
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enum tacho_measure_state {
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/* Tacho init state */
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TACHO_IN_IDLE = 0,
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/* Tacho first edge state */
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TACHO_WAIT_FOR_1_EDGE,
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/* Tacho second edge state */
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TACHO_WAIT_FOR_2_EDGE,
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/* Tacho underflow state */
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TACHO_UNDERFLOW
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};
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/* Tacho status data structure */
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struct tacho_status_t {
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/* Current state of the measurement */
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enum tacho_measure_state cur_state;
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/* Pulse counter value between edge1 and edge2 */
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uint32_t edge_interval;
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};
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extern const struct mft_t mft_channels[];
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#endif /* __CROS_EC_FAN_CHIP_H */
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