forked from Archive/PX4-Autopilot
107 lines
3.7 KiB
C
107 lines
3.7 KiB
C
/****************************************************************************
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*
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* Copyright (C) 2017 PX4 Development Team. All rights reserved.
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* Author: @author David Sidrane <david_s5@nscdg.com>
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* 3. Neither the name PX4 nor the names of its contributors may be
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* used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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****************************************************************************/
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/**
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* @file board_identity.c
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* Implementation of Non Arch specific Board identity API
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*/
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#include <px4_platform_common/px4_config.h>
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#include <stdio.h>
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#include <string.h>
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/**
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* For special cases, specific boards may need to override the UUID, instead of using the generic
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* PX4 GUID (gettable via 'board_get_px4_guid_formated' function). In that case we define the cascaded
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* UUID function getters to incorporate the overridden UUID into the GUID.
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*/
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#if defined(BOARD_OVERRIDE_UUID) || defined(BOARD_OVERRIDE_MFGUID) || defined(BOARD_OVERRIDE_PX4_GUID)
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static const uint16_t soc_arch_id = PX4_SOC_ARCH_ID;
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static const char board_uuid[17] = BOARD_OVERRIDE_UUID;
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void board_get_uuid32(uuid_uint32_t uuid_words)
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{
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unsigned int len = strlen(board_uuid);
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if (len > PX4_CPU_UUID_BYTE_LENGTH) {
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len = PX4_CPU_UUID_BYTE_LENGTH;
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}
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uint8_t *bp = (uint8_t *) uuid_words;
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for (unsigned int i = 0; i < len; i++) {
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*bp++ = board_uuid[i];
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}
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for (unsigned int i = len; i < PX4_CPU_UUID_BYTE_LENGTH; i++) {
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*bp++ = '0';
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}
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}
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int board_get_uuid32_formated(char *format_buffer, int size,
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const char *format,
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const char *seperator)
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{
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uuid_uint32_t uuid;
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board_get_uuid32(uuid);
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int offset = 0;
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int sep_size = seperator ? strlen(seperator) : 0;
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for (unsigned i = 0; (offset < size - 1) && (i < PX4_CPU_UUID_WORD32_LENGTH); i++) {
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offset += snprintf(&format_buffer[offset], size - offset, format, uuid[i]);
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if (sep_size && (offset < size - sep_size - 1) && (i < PX4_CPU_UUID_WORD32_LENGTH - 1)) {
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strncat(&format_buffer[offset], seperator, size - offset);
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offset += sep_size;
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}
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}
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return 0;
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}
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int board_get_mfguid_formated(char *format_buffer, int size)
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{
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board_get_uuid32_formated(format_buffer, size, "%02x", NULL);
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return strlen(format_buffer);
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}
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int board_get_px4_guid_formated(char *format_buffer, int size)
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{
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int offset = snprintf(format_buffer, size, "%04x", soc_arch_id);
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size -= offset;
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return board_get_mfguid_formated(&format_buffer[offset], size);
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}
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#endif
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