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044cc72496
This patch makes EC enable PD communication if it's running in manual recovery mode. This is required to show recovery screen on a type-c monitor. This patch also makes EC-EFS ignore power availability. It will make EC verify & jump to RW even if power is sourced by a barrel jack adapter. This should allow depthcharge to show screens (e.g. broken, warning) on a type-c monitor. BUG=b:72387533 BRANCH=none TEST=On Fizz with type-c monitor, verify - Recovery screen is displayed in manual recovery mode. - Critical update screen is displayed in normal mode. - Warning screen is displayed in developer mode. Monitors tested: Dingdong, Dell S2718D Change-Id: Ib53e02d1e5c0f5b2d96d9a02fd33022f92e52b04 Signed-off-by: Daisuke Nojiri <dnojiri@chromium.org> Reviewed-on: https://chromium-review.googlesource.com/898346 Reviewed-by: Randall Spangler <rspangler@chromium.org>
61 lines
1.5 KiB
C
61 lines
1.5 KiB
C
/* Copyright 2017 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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#include "common.h"
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#include "vb21_struct.h"
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#include "rsa.h"
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/**
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* Validate key contents.
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*
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* @param key
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* @return EC_SUCCESS or EC_ERROR_*
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*/
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int vb21_is_packed_key_valid(const struct vb21_packed_key *key);
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/**
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* Validate signature contents.
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*
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* @param sig Signature to be validated.
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* @param key Key to be used for validating <sig>.
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* @return EC_SUCCESS or EC_ERROR_*
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*/
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int vb21_is_signature_valid(const struct vb21_signature *sig,
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const struct vb21_packed_key *key);
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/**
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* Check data region is filled with ones
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*
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* @param data Data to be validated.
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* @param start Offset where validation starts.
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* @param end Offset where validation ends. data[end] won't be checked.
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* @return EC_SUCCESS or EC_ERROR_*
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*/
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int vboot_is_padding_valid(const uint8_t *data, uint32_t start, uint32_t end);
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/**
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* Verify data by RSA signature
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*
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* @param data Data to be verified.
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* @param len Number of bytes in <data>.
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* @param key Key to be used for verification.
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* @param sig Signature of <data>
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* @return EC_SUCCESS or EC_ERROR_*
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*/
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int vboot_verify(const uint8_t *data, int len,
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const struct rsa_public_key *key, const uint8_t *sig);
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/**
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* Entry point of EC EFS
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*/
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void vboot_main(void);
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/**
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* Get if vboot requires PD comm to be enabled or not
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*
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* @return 1: need PD communication. 0: PD communication is not needed.
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*/
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int vboot_need_pd_comm(void);
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