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640 lines
19 KiB
640 lines
19 KiB
/*
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* Copyright (C) 2017 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef __CROS_EC_INCLUDE_APP_NUGGET_H
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#define __CROS_EC_INCLUDE_APP_NUGGET_H
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#include "application.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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/****************************************************************************/
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/*
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* APP_ID_NUGGET uses the Transport API
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*/
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/****************************************************************************/
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/* App-specific errors (across all commands) */
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enum {
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NUGGET_ERROR_LOCKED = APP_SPECIFIC_ERROR,
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NUGGET_ERROR_RETRY,
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};
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/****************************************************************************/
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/* Application functions */
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#define NUGGET_PARAM_VERSION 0x0000
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/*
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* Return the one-line version string of the running image
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*
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* @param args <none>
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* @param arg_len 0
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* @param reply Null-terminated ASCII string
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* @param reply_len Max length to return
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*
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* @errors APP_ERROR_TOO_MUCH
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*/
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/****************************************************************************/
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/* Firmware upgrade stuff */
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#define NP_FLASH_BLOCK_SIZE 2048
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struct nugget_app_flash_block {
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uint32_t block_digest; /* first 4 bytes of sha1 of the rest */
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uint32_t offset; /* from start of flash */
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uint8_t payload[NP_FLASH_BLOCK_SIZE]; /* data to write */
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} __packed;
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#define NUGGET_PARAM_FLASH_BLOCK 0x0001
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/*
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* Erase and write a single flash block.
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*
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* @param args struct nugget_app_flash_block
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* @param arg_len sizeof(struct nugget_app_flash_block)
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* @param reply <none>
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* @param reply_len 0
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*
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* @errors NUGGET_ERROR_LOCKED, NUGGET_ERROR_RETRY
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*/
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#define NUGGET_PARAM_REBOOT 0x0002
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/*
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* Reboot Citadel
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*
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* @param args <none>
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* @param arg_len 0
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* @param reply <none>
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* @param reply_len 0
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*/
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/*********
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* Firmware updates are written to flash with invalid headers. If an update
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* password exists, headers can only be marked valid by providing that
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* password.
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*/
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/*
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* An unassigned password is defined to be all 0xff, with a don't-care digest.
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* Anything else must have a valid digest over all password bytes. The password
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* length is chosen arbitrarily for now, but should always be a fixed size with
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* all bytes used, to resist brute-force guesses.
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*/
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#define NUGGET_UPDATE_PASSWORD_LEN 32
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struct nugget_app_password {
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uint32_t digest; /* first 4 bytes of sha1 of password (little endian) */
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uint8_t password[NUGGET_UPDATE_PASSWORD_LEN];
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} __packed;
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enum NUGGET_ENABLE_HEADER {
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NUGGET_ENABLE_HEADER_RO = 0x01,
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NUGGET_ENABLE_HEADER_RW = 0x02,
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};
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struct nugget_app_enable_update {
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struct nugget_app_password password;
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uint8_t which_headers; /* bit 0 = RO, bit 1 = RW */
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} __packed;
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#define NUGGET_PARAM_ENABLE_UPDATE 0x0003
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/*
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* Mark the specified image header(s) as valid, if the provided password
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* matches. Returns true if either header was CHANGED to valid, which is an
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* indication that the AP should request a reboot so that it can take effect.
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*
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* @param args struct nugget_app_enable_update
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* @param arg_len sizeof(struct nugget_app_enable_update)
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* @param reply 0 or 1
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* @param reply_len 1 byte
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*
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* @errors APP_ERROR_BOGUS_ARGS
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*/
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struct nugget_app_change_update_password {
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struct nugget_app_password old_password;
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struct nugget_app_password new_password;
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} __packed;
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#define NUGGET_PARAM_CHANGE_UPDATE_PASSWORD 0x0004
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/*
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* Change the update password.
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*
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* @param args struct nugget_app_change_update_password
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* @param arg_len sizeof(struct nugget_app_change_update_password)
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* @param reply <none>
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* @param reply_len 0
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*
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* @errors APP_ERROR_BOGUS_ARGS
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*/
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#define NUGGET_PARAM_NUKE_FROM_ORBIT 0x0005
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#define ERASE_CONFIRMATION 0xc05fefee
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/*
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* This will erase ALL user secrets and reboot.
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*
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* @param args uint32_t containing the ERASE_CONFIRMATION value
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* @param arg_len sizeof(uint32_t)
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* @param reply <none>
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* @param reply_len 0
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*
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* @errors APP_ERROR_BOGUS_ARGS
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*/
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#define NUGGET_PARAM_DEVICE_ID 0x0006
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/*
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* Get the device ID of the chip.
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*
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* @param args <none>
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* @param arg_len 0
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* @param reply Null-terminated ASCII string
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* @param reply_len Max length to return
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*/
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#define NUGGET_PARAM_LONG_VERSION 0x0007
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/*
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* Return the multi-line description of all images
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*
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* @param args <none>
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* @param arg_len 0
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* @param reply Null-terminated ASCII string
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* @param reply_len Max length to return
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*
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* @errors APP_ERROR_TOO_MUCH
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*/
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#define NUGGET_PARAM_HEADER_RO_A 0x0008
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/*
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* Return the signature header for RO_A
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*
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* @param args <none>
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* @param arg_len 0
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* @param reply struct SignedHeader
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* @param reply_len Max length to return
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*
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* @errors APP_ERROR_TOO_MUCH
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*/
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#define NUGGET_PARAM_HEADER_RO_B 0x0009
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/*
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* Return the signature header for RO_B
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*
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* @param args <none>
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* @param arg_len 0
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* @param reply struct SignedHeader
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* @param reply_len Max length to return
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*
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* @errors APP_ERROR_TOO_MUCH
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*/
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#define NUGGET_PARAM_HEADER_RW_A 0x000a
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/*
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* Return the signature header for RW_A
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*
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* @param args <none>
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* @param arg_len 0
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* @param reply struct SignedHeader
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* @param reply_len Max length to return
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*
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* @errors APP_ERROR_TOO_MUCH
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*/
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#define NUGGET_PARAM_HEADER_RW_B 0x000b
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/*
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* Return the signature header for RW_B
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*
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* @param args <none>
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* @param arg_len 0
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* @param reply struct SignedHeader
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* @param reply_len Max length to return
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*
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* @errors APP_ERROR_TOO_MUCH
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*/
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#define NUGGET_PARAM_REPO_SNAPSHOT 0x000c
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/*
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* Return the multi-line repo snapshot info for the current image
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*
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* @param args <none>
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* @param arg_len 0
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* @param reply Null-terminated ASCII string
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* @param reply_len Max length to return
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*
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* @errors APP_ERROR_TOO_MUCH
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*/
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enum nugget_ap_uart_passthru_cfg {
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NUGGET_AP_UART_OFF, /* off */
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NUGGET_AP_UART_IS_USB, /* USB CCD is in use over SBU */
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NUGGET_AP_UART_ENABLED, /* AP UART is on SBU lines */
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NUGGET_AP_UART_SSC_UART, /* This doesn't actually exist */
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NUGGET_AP_UART_CITADEL_UART, /* Citadel UART on SBU lines (ew) */
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NUGGET_AP_UART_NUM_CFGS,
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};
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#define NUGGET_PARAM_AP_UART_PASSTHRU 0x000d
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/*
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* Enable/Disable the AP UART PASSTHRU function
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*
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* This always returns the current state of the AP UART passthru feature. Even
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* if the AP UART is disabled, a SuzyQable may connected to use the SBU lines.
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*
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* The AP can only request that the AP UART passthru feature be enabled
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* (NUGGET_AP_UART_ENABLED), or disabled (NUGGET_AP_UART_OFF). The other enums
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* are for internal testing.
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*
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* @param args <none> OR enum nugget_ap_uart_passthru_cfg
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* @param arg_len 0 OR 1 byte
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* @param reply enum nugget_param_ap_uart_passthru
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* @param reply_len 1 byte
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*
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* @errors APP_ERROR_BOGUS_ARGS
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*/
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#define NUGGET_PARAM_RDD_CFG 0x000e
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/*
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* Enable/Disable the RDD SuzyQable Detection
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*
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* This always returns the current state of the RDD SuzyQable detection
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* feature.
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*
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* The AP can request that the RDD SuzyQable detection to be disabled (0) or
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* enabled (1).
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*
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* @param args 0 OR 1
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* @param arg_len 0 OR 1 byte
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* @param reply current state (0 or 1)
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* @param reply_len 1 byte
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*
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* @errors APP_ERROR_BOGUS_ARGS
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*/
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#define NUGGET_PARAM_BOARD_ID 0x000f
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/*
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* Set / Get Board ID
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*
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* This sets or gets the Board ID of the device.
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*
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* @param args <none> OR nugget_app_board_id
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* @param arg_len 0 OR sizeof nugget_app_board_id
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* @param reply struct nugget_app_board_id
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* @param reply_len sizeof struct nugget_app_board_id
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*
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* @errors APP_ERROR_BOGUS_ARGS
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*/
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struct nugget_app_board_id {
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uint32_t type;
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uint32_t flag;
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uint32_t inv; /* must equal ~type when setting */
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} __packed;
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#define NUGGET_PARAM_GET_EVENT_RECORD 0x0010
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/*
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* This retrieves one pending event_record (defined in citadel_events.h).
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* If none are pending, it returns nothing.
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*
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* @param args <none>
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* @param arg_len 0
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* @param reply struct event_record
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* @param reply_len sizeof struct event_record OR 0
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*/
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#define NUGGET_PARAM_AP_IS_REBOOTING 0x0011
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/*
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* This can be used to replace the GPIO signal for some boards, if the
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* communication path is trusted. If not, it has no effect.
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*
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* @param args <none>
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* @param arg_len 0
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* @param reply <none>
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* @param reply_len 0
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*/
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#define FILE_ID_NUGGET_PERSIST 0
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#define NUGGET_PERSIST_VERSION_1 1
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struct nugget_persist_t {
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uint8_t version;
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uint8_t user_consent;
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uint8_t reserved[2];
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};
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enum nugget_sjtag_user_consent_cfg {
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NUGGET_SJTAG_USER_CONSENT_DISALLOW, /* DISALLOW */
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NUGGET_SJTAG_USER_CONSENT_ALLOW, /* ALLOW */
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NUGGET_SJTAG_USER_CONSENT_NUM_CFGS,
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};
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#define NUGGET_PARAM_SJTAG_USER_CONSENT 0x0012
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/*
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* Set/Get the SJTAG USER CONSENT function
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*
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* This always returns the current state of the SJTAG USER CONSENT feature.
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*
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* @param args <none> OR enum nugget_sjtag_user_consent_cfg
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* @param arg_len 0 OR 1 byte
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* @param reply enum nugget_sjtag_user_consent_cfg
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* @param reply_len 1 byte
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*
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* @errors APP_ERROR_BOGUS_ARGS
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*/
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enum nugget_sjtag_avb_boot_lock_result {
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AVB_BOOT_LOCK_DISABLED,
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AVB_BOOT_LOCK_ENABLED,
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AVB_BOOT_LOCK_ERROR,
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};
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#define NUGGET_PARAM_SJTAG_ALLOW 0x0013
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/*
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* Get the SJTAG ALLOW
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*
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* This always returns the current state of the SJTAG ALLOW feature.
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*
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* @param args <none>
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* @param arg_len 0
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* @param reply 0(DISALLOW) OR 1(ALLOW)
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* @param reply_len 1 byte
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*
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* @errors APP_ERROR_BOGUS_ARGS
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*/
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/*
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* Persistent storage of arbitrary data, up to
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* (FS_MAX_FILE_SIZE - sizeof(struct nugget_app_data)) bytes.
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*/
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struct nugget_app_storage {
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uint32_t flags; /* TBD, use zero for now */
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#ifndef __cplusplus
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uint8_t data[]; /* Zero or more bytes */
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#endif
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} __packed;
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#define NUGGET_PARAM_STORAGE_WRITE 0x0014
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/*
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* Write arbitrary data.
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*
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* The current storage is erased, then new data (if any) is saved.
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*
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* .flags meaning is not yet defined; for now it must be 0x00000000
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* Possible usage could restrict reading to the bootloader,
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* erase data after N reads or reboots, etc.
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*
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* @param args struct nugget_app_storage + zero or more bytes
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* @param arg_len To write: > sizeof(struct nugget_app_storage)
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* To erase: <= sizeof(struct nugget_app_storage)
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* @param reply <none>
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* @param reply_len 0
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*
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* @errors APP_ERROR_BOGUS_ARGS
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*/
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#define NUGGET_PARAM_STORAGE_READ 0x0015
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/*
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* Read arbitrary data.
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*
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* On success, struct nugget_app_storage is returned, followed by zero
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* or more bytes of .data
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*
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* @param args <none>
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* @param arg_len 0
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* @param reply struct nugget_app_storage + zero or more bytes
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* @param reply_len <varies>
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*
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* @errors APP_ERROR_BOGUS_ARGS
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*/
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/****************************************************************************/
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/* Test related commands */
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#define NUGGET_PARAM_CYCLES_SINCE_BOOT 0x0100
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/*
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* Get the number of cycles since boot
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*
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* @param args <none>
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* @param arg_len 0
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* @param reply uint32_t cycles
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* @param reply_len sizeof(uint32_t)
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*/
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enum nugget_app_selftest_cmd {
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/* Generic */
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NUGGET_APP_SELFTEST_CMD_DEFAULT = 0,
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NUGGET_APP_SELFTEST_CMD_HELP,
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/* Application SelfTests */
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NUGGET_APP_SELFTEST_CMD_TRNG = 0x10,
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};
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#define NUGGET_PARAM_SELFTEST 0x0101
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/*
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* Run an intentionally vaguely specified internal test.
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*
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* This accepts arbitrary args and returns arbitrary results, as defined by the
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* Citadel firmware. To allow changes to Nugget OS without requiring
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* simultaneous changes to the AP, calling this with no args will run a default
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* set of tests and return a null-terminated string with the result.
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*
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* @param args zero or more null-terminated strings, concatenated
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* @param arg_len number of bytes in args
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* @param reply null-terminated string (usually)
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* @param reply_len number of bytes in reply (including trailing '\0')
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*/
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/****************************************************************************/
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/* Support for Power 1.1 HAL */
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/*
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* This struct is specific to Citadel and Nugget OS, but it's enough for the
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* AP-side implementation to translate into the info required for the power
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* stats service.
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*/
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#define NUGGET_APP_LOW_POWER_STATS_MAGIC 0xC0DEACE1
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struct nugget_app_low_power_stats { /* version 1 */
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/* All times in usecs */
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uint64_t hard_reset_count; /* Cleared by power loss */
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uint64_t time_since_hard_reset;
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/* Below are only since the last hard reset */
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uint64_t wake_count;
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uint64_t time_at_last_wake;
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uint64_t time_spent_awake;
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uint64_t deep_sleep_count;
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uint64_t time_at_last_deep_sleep;
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uint64_t time_spent_in_deep_sleep;
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uint64_t time_at_ap_reset;
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uint64_t time_at_ap_bootloader_done;
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/*
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* New fields for v1, used by factory tests. The caller can tell whether the
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* firmare supports these fields by checking the v1_magic value.
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*/
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uint32_t v1_magic; /* NUGGET_APP_LOW_POWER_STATS_MAGIC */
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uint32_t temp;
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struct {
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unsigned int phone_on_l : 1;
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unsigned int vol_up_l : 1;
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unsigned int vol_dn_l : 1;
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unsigned int _padding : 29; /* pad to 32 bits */
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} signals;
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} __packed;
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#define NUGGET_PARAM_GET_LOW_POWER_STATS 0x200
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/*
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* Return information regarding deep sleep transitions
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*
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* @param args <none>
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* @param arg_len 0
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* @param reply struct nugget_param_get_low_power_stats
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* @param reply_len sizeof(struct nugget_param_get_low_power_stats)
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*/
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/* UNIMPLEMENTED */
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/* Reseved just in case we decide we need it */
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#define NUGGET_PARAM_CLEAR_LOW_POWER_STATS 0x201
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/* UNIMPLEMENTED */
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/****************************************************************************/
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/* Commands for code coverage and quality assurance */
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#define NUGGET_GET_COVERAGE_COUNTERS 0x0300
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/**
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* Returns the counters back to the master
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*
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* @param args module counter
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* @param arg_len 1
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* @param reply buffer containing coverage data in utf-8 format
|
|
* @param reply_len depends on the counters in the file
|
|
*/
|
|
|
|
/*
|
|
* Error returned if coverage data didn't fit in the buffer.
|
|
*
|
|
* TODO: Should really have a second arg which is an offset in the coverage
|
|
* data. That way we could call repeatedly to return data too big to return in
|
|
* a single command.
|
|
*/
|
|
enum {
|
|
NUGGET_ERROR_COVERAGE_OVERFLOW = APP_SPECIFIC_ERROR + 0x300,
|
|
};
|
|
|
|
/****************************************************************************/
|
|
/* These are bringup / debug functions only. */
|
|
|
|
#define NUGGET_PARAM_READ32 0xF000
|
|
/*
|
|
* Read a 32-bit value from memory.
|
|
*
|
|
* DANGER, WILL ROBINSON! DANGER! There is NO sanity checking on this AT ALL.
|
|
* Read the wrong address, and Bad Things(tm) WILL happen.
|
|
*
|
|
* @param args uint32_t address
|
|
* @param arg_len sizeof(uint32_t)
|
|
* @param reply uint32_t value
|
|
* @param reply_len sizeof(uint32_t)
|
|
*/
|
|
|
|
struct nugget_app_write32 {
|
|
uint32_t address;
|
|
uint32_t value;
|
|
} __packed;
|
|
|
|
#define NUGGET_PARAM_WRITE32 0xF001
|
|
/*
|
|
* Write a 32-bit value to memory
|
|
*
|
|
* DANGER, WILL ROBINSON! DANGER! There is NO sanity checking on this AT ALL.
|
|
* Write the wrong values to the wrong address, and Bad Things(tm) WILL happen.
|
|
*
|
|
* @param args struct nugget_app_write32
|
|
* @param arg_len sizeof(struct nugget_app_write32)
|
|
* @param reply <none>
|
|
* @param reply_len 0
|
|
*/
|
|
|
|
#define NUGGET_PARAM_CONSOLE 0xF002
|
|
/*
|
|
* Send optional command, return recent console output
|
|
*
|
|
* @param args command, if any
|
|
* @param arg_len sizeof(command)
|
|
* @param reply recent console output
|
|
* @param reply_len len(recent console output)
|
|
*/
|
|
|
|
#define NUGGET_PARAM_MODULE_TEST 0xF003
|
|
/**
|
|
* Run a module test based on a provided command.
|
|
*
|
|
* A default command is afforded (0x00), which runs each module test that is
|
|
* currently enabled. Specific tests can be specified, but are not enumerated
|
|
* here.
|
|
*
|
|
* The return code of the command (enum app_status) encodes the success state of
|
|
* the tests. A result of `APP_SUCCESS` is, unsurprisingly, a success for all
|
|
* specified tests. A failure of a given test is encoded using the
|
|
* `APP_SPECIFIC_ERROR` values. This allows a given test to not only report that
|
|
* an error has occured, but also to report which test threw the error, and in
|
|
* what point of the test the error was thrown.
|
|
* The encoding is as follows:
|
|
* `rv = (APP_SPECIFIC_ERROR + command + test_step)`
|
|
* where `command` is the 4-byte test value (in steps of 0x10), and where the
|
|
* test_step is a subdivision of the test, valued from 0-15.
|
|
*
|
|
* The return string will describe each test that passes, and each test that
|
|
* fails, and how it failed. Tests should abort after the first failure.
|
|
*
|
|
* @param args uint32_t command
|
|
* @param arg_len sizeof(uint32_t)
|
|
* @param reply null-terminated string (usually)
|
|
* @param reply_len number of bytes in reply (including trailing '\0')
|
|
*/
|
|
|
|
enum nugget_app_sleep_mode {
|
|
NUGGET_APP_SLEEP_MODE_DEFAULT,
|
|
NUGGET_APP_SLEEP_MODE_WFI,
|
|
NUGGET_APP_SLEEP_MODE_SLEEP
|
|
};
|
|
#define NUGGET_PARAM_SET_SLEEP_MODE 0xF004
|
|
/**
|
|
* Set the Sleep mode of the GSC.
|
|
*
|
|
* In certain tests, we expect the GSC to be in either WFI mode, or in deep
|
|
* sleep mode. The sleep state should be provided by the host to the GSC, to
|
|
* ensure that the test is performed in the correct circumstances.
|
|
*
|
|
* @param args enum nugget_app_sleep_mode selection
|
|
* @param arg_len 4
|
|
* @param reply <none>
|
|
* @param reply_len 0
|
|
*/
|
|
|
|
#define NUGGET_PARAM_TRIGGER_PIN 0xF005
|
|
/**
|
|
* Get/Set trigger pin level
|
|
*
|
|
* This command asks GSC to set the level (0|1) of an otherwise unused GPIO,
|
|
* to signal external test equipment.
|
|
*
|
|
* @param args 0 OR 1
|
|
* @param arg_len 0 OR 1 byte
|
|
* @param reply current state (0 or 1)
|
|
* @param reply_len 1 byte
|
|
*
|
|
* @errors APP_ERROR_BOGUS_ARGS
|
|
*/
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
#endif /* __CROS_EC_INCLUDE_APP_NUGGET_H */
|