75 lines
1.8 KiB
C
75 lines
1.8 KiB
C
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/* Copyright 2019 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 "console.h"
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#include "extension.h"
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#include "endian.h"
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#include "flash_log.h"
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#include "util.h"
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static enum vendor_cmd_rc vc_pop_log_entry(enum vendor_cmd_cc code, void *buf,
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size_t input_size,
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size_t *response_size)
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{
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uint32_t prev_timestamp;
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int byte_size;
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*response_size = 0; /* In case there is an error. */
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if (input_size != sizeof(prev_timestamp))
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return VENDOR_RC_BOGUS_ARGS;
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memcpy(&prev_timestamp, buf, sizeof(prev_timestamp));
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byte_size = flash_log_dequeue_event(
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prev_timestamp, buf,
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FLASH_LOG_ENTRY_SIZE(MAX_FLASH_LOG_PAYLOAD_SIZE));
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if (byte_size >= 0) {
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*response_size = byte_size;
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return VENDOR_RC_SUCCESS;
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}
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/* Negative value should fit into a byte. */
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*response_size = 1;
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((uint8_t *)buf)[0] = -byte_size;
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return VENDOR_RC_INTERNAL_ERROR;
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}
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DECLARE_VENDOR_COMMAND(VENDOR_CC_POP_LOG_ENTRY, vc_pop_log_entry);
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static enum vendor_cmd_rc vc_flog_tstamp(enum vendor_cmd_cc code, void *buf,
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size_t input_size,
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size_t *response_size)
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{
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uint32_t tstamp;
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enum ec_error_list rv;
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if (!input_size) {
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/* This is a request to report current flash log time. */
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tstamp = htobe32(flash_log_get_tstamp());
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memcpy(buf, &tstamp, sizeof(tstamp));
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*response_size = sizeof(tstamp);
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return VENDOR_RC_SUCCESS;
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}
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if (input_size != sizeof(tstamp))
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return VENDOR_RC_BOGUS_ARGS;
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memcpy(&tstamp, buf, sizeof(tstamp));
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tstamp = be32toh(tstamp);
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rv = flash_log_set_tstamp(tstamp);
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if (rv == EC_SUCCESS) {
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*response_size = 0;
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return VENDOR_RC_SUCCESS;
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}
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*response_size = 1;
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*((uint8_t *)buf) = (uint8_t)rv;
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return VENDOR_RC_BOGUS_ARGS;
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}
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DECLARE_VENDOR_COMMAND(VENDOR_CC_FLOG_TIMESTAMP, vc_flog_tstamp);
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