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https://github.com/Telecominfraproject/OpenCellular.git
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ad7a75531e
This cleans up the vboot functions which handle display so they don't need to pass it around. Eventually, it'll be absorbed by vb2_context. BUG=chromium:611535 BRANCH=none TEST=make runtests; build_packages --board=reef chromeos-firmware; boot reef Change-Id: I58169dfd37abe657f9b9aa339cc72ffa398329e0 Signed-off-by: Randall Spangler <rspangler@chromium.org> Reviewed-on: https://chromium-review.googlesource.com/414288 Reviewed-by: Shelley Chen <shchen@chromium.org>
89 lines
2.5 KiB
C
89 lines
2.5 KiB
C
/* Copyright 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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* EC software sync for verified boot
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*/
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#ifndef VBOOT_REFERENCE_EC_SYNC_H_
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#define VBOOT_REFERENCE_EC_SYNC_H_
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#include "vboot_api.h"
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struct vb2_context;
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struct VbCommonParams;
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/**
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* EC sync, phase 1
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*
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* This checks whether the EC is running the correct image to do EC sync, and
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* whether any updates are necessary.
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*
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* @param ctx Vboot2 context
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* @param cparams Vboot common params
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* @return VBERROR_SUCCESS, VBERROR_EC_REBOOT_TO_RO_REQUIRED if the EC must
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* reboot back to its RO code to continue EC sync, or other non-zero error
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* code.
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*/
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VbError_t ec_sync_phase1(struct vb2_context *ctx,
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struct VbCommonParams *cparams);
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/**
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* Returns non-zero if the EC will perform a slow update during phase 2.
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*
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* This is only valid after calling ec_sync_phase1(), before calling
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* ec_sync_phase2().
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*
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* @param ctx Vboot2 context
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* @param cparams Vboot common params
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* @return non-zero if a slow update will be done; zero if no update or a
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* fast update.
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*/
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int ec_will_update_slowly(struct vb2_context *ctx,
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struct VbCommonParams *cparams);
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/**
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* EC sync, phase 2
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*
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* This updates the EC if necessary, makes sure it has protected its image(s),
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* and makes sure it has jumped to the correct image.
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*
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* If ec_will_update_slowly(), it is suggested that the caller display a
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* warning screen before calling phase 2.
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*
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* @param ctx Vboot2 context
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* @param cparams Vboot common params
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* @return VBERROR_SUCCESS, VBERROR_EC_REBOOT_TO_RO_REQUIRED if the EC must
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* reboot back to its RO code to continue EC sync, or other non-zero error
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* code.
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*/
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VbError_t ec_sync_phase2(struct vb2_context *ctx,
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struct VbCommonParams *cparams);
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/**
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* EC sync, phase 3
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*
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* This completes EC sync and handles battery cutoff if needed.
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*
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* @param ctx Vboot2 context
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* @param cparams Vboot common params
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* @return VBERROR_SUCCESS or non-zero error code.
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*/
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VbError_t ec_sync_phase3(struct vb2_context *ctx, VbCommonParams *cparams);
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/**
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* Sync all EC devices to expected versions.
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*
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* This is a high-level function which calls the functions above.
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*
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* @param ctx Vboot context
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* @param devidx EC device index to sync
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* @param cparams Common vboot params
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* @return VBERROR_SUCCESS, or non-zero if error.
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*/
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VbError_t ec_sync_all(struct vb2_context *ctx, struct
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VbCommonParams *cparams);
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#endif /* VBOOT_REFERENCE_EC_SYNC_H_ */
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