forked from Archive/PX4-Autopilot
604 lines
13 KiB
C++
604 lines
13 KiB
C++
/****************************************************************************
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*
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* Copyright (C) 2012 PX4 Development Team. All rights reserved.
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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 Firmware uploader for PX4IO
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*/
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#include <nuttx/config.h>
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#include <sys/types.h>
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#include <stdint.h>
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#include <stdbool.h>
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#include <assert.h>
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#include <errno.h>
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#include <string.h>
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#include <stdio.h>
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#include <stdarg.h>
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#include <unistd.h>
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#include <fcntl.h>
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#include <poll.h>
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#include <sys/stat.h>
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#include "uploader.h"
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static const uint32_t crctab[] =
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{
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0x00000000, 0x77073096, 0xee0e612c, 0x990951ba, 0x076dc419, 0x706af48f, 0xe963a535, 0x9e6495a3,
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0x0edb8832, 0x79dcb8a4, 0xe0d5e91e, 0x97d2d988, 0x09b64c2b, 0x7eb17cbd, 0xe7b82d07, 0x90bf1d91,
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0x1db71064, 0x6ab020f2, 0xf3b97148, 0x84be41de, 0x1adad47d, 0x6ddde4eb, 0xf4d4b551, 0x83d385c7,
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0x136c9856, 0x646ba8c0, 0xfd62f97a, 0x8a65c9ec, 0x14015c4f, 0x63066cd9, 0xfa0f3d63, 0x8d080df5,
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0x3b6e20c8, 0x4c69105e, 0xd56041e4, 0xa2677172, 0x3c03e4d1, 0x4b04d447, 0xd20d85fd, 0xa50ab56b,
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0x35b5a8fa, 0x42b2986c, 0xdbbbc9d6, 0xacbcf940, 0x32d86ce3, 0x45df5c75, 0xdcd60dcf, 0xabd13d59,
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0x26d930ac, 0x51de003a, 0xc8d75180, 0xbfd06116, 0x21b4f4b5, 0x56b3c423, 0xcfba9599, 0xb8bda50f,
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0x2802b89e, 0x5f058808, 0xc60cd9b2, 0xb10be924, 0x2f6f7c87, 0x58684c11, 0xc1611dab, 0xb6662d3d,
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0x76dc4190, 0x01db7106, 0x98d220bc, 0xefd5102a, 0x71b18589, 0x06b6b51f, 0x9fbfe4a5, 0xe8b8d433,
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0x7807c9a2, 0x0f00f934, 0x9609a88e, 0xe10e9818, 0x7f6a0dbb, 0x086d3d2d, 0x91646c97, 0xe6635c01,
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0x6b6b51f4, 0x1c6c6162, 0x856530d8, 0xf262004e, 0x6c0695ed, 0x1b01a57b, 0x8208f4c1, 0xf50fc457,
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0x65b0d9c6, 0x12b7e950, 0x8bbeb8ea, 0xfcb9887c, 0x62dd1ddf, 0x15da2d49, 0x8cd37cf3, 0xfbd44c65,
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0x4db26158, 0x3ab551ce, 0xa3bc0074, 0xd4bb30e2, 0x4adfa541, 0x3dd895d7, 0xa4d1c46d, 0xd3d6f4fb,
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0x4369e96a, 0x346ed9fc, 0xad678846, 0xda60b8d0, 0x44042d73, 0x33031de5, 0xaa0a4c5f, 0xdd0d7cc9,
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0x5005713c, 0x270241aa, 0xbe0b1010, 0xc90c2086, 0x5768b525, 0x206f85b3, 0xb966d409, 0xce61e49f,
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0x5edef90e, 0x29d9c998, 0xb0d09822, 0xc7d7a8b4, 0x59b33d17, 0x2eb40d81, 0xb7bd5c3b, 0xc0ba6cad,
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0xedb88320, 0x9abfb3b6, 0x03b6e20c, 0x74b1d29a, 0xead54739, 0x9dd277af, 0x04db2615, 0x73dc1683,
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0xe3630b12, 0x94643b84, 0x0d6d6a3e, 0x7a6a5aa8, 0xe40ecf0b, 0x9309ff9d, 0x0a00ae27, 0x7d079eb1,
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0xf00f9344, 0x8708a3d2, 0x1e01f268, 0x6906c2fe, 0xf762575d, 0x806567cb, 0x196c3671, 0x6e6b06e7,
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0xfed41b76, 0x89d32be0, 0x10da7a5a, 0x67dd4acc, 0xf9b9df6f, 0x8ebeeff9, 0x17b7be43, 0x60b08ed5,
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0xd6d6a3e8, 0xa1d1937e, 0x38d8c2c4, 0x4fdff252, 0xd1bb67f1, 0xa6bc5767, 0x3fb506dd, 0x48b2364b,
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0xd80d2bda, 0xaf0a1b4c, 0x36034af6, 0x41047a60, 0xdf60efc3, 0xa867df55, 0x316e8eef, 0x4669be79,
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0xcb61b38c, 0xbc66831a, 0x256fd2a0, 0x5268e236, 0xcc0c7795, 0xbb0b4703, 0x220216b9, 0x5505262f,
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0xc5ba3bbe, 0xb2bd0b28, 0x2bb45a92, 0x5cb36a04, 0xc2d7ffa7, 0xb5d0cf31, 0x2cd99e8b, 0x5bdeae1d,
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0x9b64c2b0, 0xec63f226, 0x756aa39c, 0x026d930a, 0x9c0906a9, 0xeb0e363f, 0x72076785, 0x05005713,
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0x95bf4a82, 0xe2b87a14, 0x7bb12bae, 0x0cb61b38, 0x92d28e9b, 0xe5d5be0d, 0x7cdcefb7, 0x0bdbdf21,
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0x86d3d2d4, 0xf1d4e242, 0x68ddb3f8, 0x1fda836e, 0x81be16cd, 0xf6b9265b, 0x6fb077e1, 0x18b74777,
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0x88085ae6, 0xff0f6a70, 0x66063bca, 0x11010b5c, 0x8f659eff, 0xf862ae69, 0x616bffd3, 0x166ccf45,
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0xa00ae278, 0xd70dd2ee, 0x4e048354, 0x3903b3c2, 0xa7672661, 0xd06016f7, 0x4969474d, 0x3e6e77db,
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0xaed16a4a, 0xd9d65adc, 0x40df0b66, 0x37d83bf0, 0xa9bcae53, 0xdebb9ec5, 0x47b2cf7f, 0x30b5ffe9,
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0xbdbdf21c, 0xcabac28a, 0x53b39330, 0x24b4a3a6, 0xbad03605, 0xcdd70693, 0x54de5729, 0x23d967bf,
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0xb3667a2e, 0xc4614ab8, 0x5d681b02, 0x2a6f2b94, 0xb40bbe37, 0xc30c8ea1, 0x5a05df1b, 0x2d02ef8d
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};
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static uint32_t
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crc32(const uint8_t *src, unsigned len, unsigned state)
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{
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for (unsigned i = 0; i < len; i++)
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state = crctab[(state ^ src[i]) & 0xff] ^ (state >> 8);
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return state;
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}
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PX4IO_Uploader::PX4IO_Uploader() :
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_io_fd(-1),
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_fw_fd(-1)
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{
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}
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PX4IO_Uploader::~PX4IO_Uploader()
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{
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}
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int
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PX4IO_Uploader::upload(const char *filenames[])
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{
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int ret;
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const char *filename = NULL;
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size_t fw_size;
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_io_fd = open("/dev/ttyS2", O_RDWR);
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if (_io_fd < 0) {
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log("could not open interface");
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return -errno;
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}
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/* look for the bootloader */
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ret = sync();
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if (ret != OK) {
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/* this is immediately fatal */
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log("bootloader not responding");
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return -EIO;
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}
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for (unsigned i = 0; filenames[i] != nullptr; i++) {
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_fw_fd = open(filenames[i], O_RDONLY);
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if (_fw_fd < 0) {
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log("failed to open %s", filenames[i]);
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continue;
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}
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log("using firmware from %s", filenames[i]);
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filename = filenames[i];
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break;
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}
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if (filename == NULL) {
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log("no firmware found");
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return -ENOENT;
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}
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struct stat st;
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if (stat(filename, &st) != 0) {
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log("Failed to stat %s - %d\n", filename, (int)errno);
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return -errno;
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}
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fw_size = st.st_size;
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if (_fw_fd == -1)
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return -ENOENT;
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/* do the usual program thing - allow for failure */
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for (unsigned retries = 0; retries < 1; retries++) {
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if (retries > 0) {
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log("retrying update...");
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ret = sync();
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if (ret != OK) {
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/* this is immediately fatal */
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log("bootloader not responding");
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return -EIO;
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}
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}
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ret = get_info(INFO_BL_REV, bl_rev);
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if (ret == OK) {
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if (bl_rev <= BL_REV) {
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log("found bootloader revision: %d", bl_rev);
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} else {
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log("found unsupported bootloader revision %d, exiting", bl_rev);
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return OK;
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}
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}
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ret = erase();
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if (ret != OK) {
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log("erase failed");
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continue;
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}
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ret = program(fw_size);
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if (ret != OK) {
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log("program failed");
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continue;
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}
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if (bl_rev <= 2)
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ret = verify_rev2(fw_size);
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else if(bl_rev == 3) {
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ret = verify_rev3(fw_size);
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}
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if (ret != OK) {
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log("verify failed");
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continue;
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}
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ret = reboot();
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if (ret != OK) {
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log("reboot failed");
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return ret;
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}
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log("update complete");
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ret = OK;
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break;
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}
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close(_fw_fd);
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return ret;
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}
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int
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PX4IO_Uploader::recv(uint8_t &c, unsigned timeout)
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{
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struct pollfd fds[1];
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fds[0].fd = _io_fd;
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fds[0].events = POLLIN;
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/* wait 100 ms for a character */
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int ret = ::poll(&fds[0], 1, timeout);
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if (ret < 1) {
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log("poll timeout %d", ret);
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return -ETIMEDOUT;
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}
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read(_io_fd, &c, 1);
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//log("recv 0x%02x", c);
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return OK;
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}
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int
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PX4IO_Uploader::recv(uint8_t *p, unsigned count)
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{
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while (count--) {
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int ret = recv(*p++, 5000);
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if (ret != OK)
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return ret;
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}
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return OK;
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}
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void
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PX4IO_Uploader::drain()
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{
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uint8_t c;
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int ret;
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do {
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ret = recv(c, 1000);
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if (ret == OK) {
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//log("discard 0x%02x", c);
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}
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} while (ret == OK);
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}
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int
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PX4IO_Uploader::send(uint8_t c)
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{
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//log("send 0x%02x", c);
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if (write(_io_fd, &c, 1) != 1)
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return -errno;
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return OK;
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}
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int
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PX4IO_Uploader::send(uint8_t *p, unsigned count)
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{
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while (count--) {
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int ret = send(*p++);
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if (ret != OK)
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return ret;
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}
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return OK;
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}
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int
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PX4IO_Uploader::get_sync(unsigned timeout)
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{
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uint8_t c[2];
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int ret;
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ret = recv(c[0], timeout);
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if (ret != OK)
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return ret;
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ret = recv(c[1], timeout);
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if (ret != OK)
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return ret;
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if ((c[0] != PROTO_INSYNC) || (c[1] != PROTO_OK)) {
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log("bad sync 0x%02x,0x%02x", c[0], c[1]);
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return -EIO;
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}
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return OK;
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}
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int
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PX4IO_Uploader::sync()
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{
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drain();
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/* complete any pending program operation */
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for (unsigned i = 0; i < (PROG_MULTI_MAX + 6); i++)
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send(0);
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send(PROTO_GET_SYNC);
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send(PROTO_EOC);
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return get_sync();
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}
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int
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PX4IO_Uploader::get_info(int param, uint32_t &val)
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{
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int ret;
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send(PROTO_GET_DEVICE);
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send(param);
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send(PROTO_EOC);
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ret = recv((uint8_t *)&val, sizeof(val));
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if (ret != OK)
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return ret;
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return get_sync();
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}
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int
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PX4IO_Uploader::erase()
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{
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log("erase...");
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send(PROTO_CHIP_ERASE);
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send(PROTO_EOC);
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return get_sync(10000); /* allow 10s timeout */
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}
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static int read_with_retry(int fd, void *buf, size_t n)
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{
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int ret;
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uint8_t retries = 0;
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do {
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ret = read(fd, buf, n);
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} while (ret == -1 && retries++ < 100);
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if (retries != 0) {
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printf("read of %u bytes needed %u retries\n",
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(unsigned)n,
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(unsigned)retries);
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}
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return ret;
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}
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int
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PX4IO_Uploader::program(size_t fw_size)
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{
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uint8_t file_buf[PROG_MULTI_MAX];
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ssize_t count;
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int ret;
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size_t sent = 0;
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log("programming %u bytes...", (unsigned)fw_size);
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ret = lseek(_fw_fd, 0, SEEK_SET);
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while (sent < fw_size) {
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/* get more bytes to program */
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size_t n = fw_size - sent;
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if (n > sizeof(file_buf)) {
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n = sizeof(file_buf);
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}
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count = read_with_retry(_fw_fd, file_buf, n);
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if (count != (ssize_t)n) {
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log("firmware read of %u bytes at %u failed -> %d errno %d",
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(unsigned)n,
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(unsigned)sent,
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(int)count,
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(int)errno);
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}
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if (count == 0)
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return OK;
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sent += count;
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if (count < 0)
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return -errno;
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ASSERT((count % 4) == 0);
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send(PROTO_PROG_MULTI);
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send(count);
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send(&file_buf[0], count);
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send(PROTO_EOC);
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ret = get_sync(1000);
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if (ret != OK)
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return ret;
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}
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return OK;
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}
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int
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PX4IO_Uploader::verify_rev2(size_t fw_size)
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{
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uint8_t file_buf[4];
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ssize_t count;
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int ret;
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size_t sent = 0;
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log("verify...");
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lseek(_fw_fd, 0, SEEK_SET);
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send(PROTO_CHIP_VERIFY);
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send(PROTO_EOC);
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ret = get_sync();
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if (ret != OK)
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return ret;
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while (sent < fw_size) {
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/* get more bytes to verify */
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size_t n = fw_size - sent;
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if (n > sizeof(file_buf)) {
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n = sizeof(file_buf);
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}
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count = read_with_retry(_fw_fd, file_buf, n);
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if (count != (ssize_t)n) {
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log("firmware read of %u bytes at %u failed -> %d errno %d",
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(unsigned)n,
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(unsigned)sent,
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(int)count,
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(int)errno);
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}
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if (count == 0)
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break;
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sent += count;
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if (count < 0)
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return -errno;
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ASSERT((count % 4) == 0);
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send(PROTO_READ_MULTI);
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send(count);
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send(PROTO_EOC);
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for (ssize_t i = 0; i < count; i++) {
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uint8_t c;
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|
|
ret = recv(c, 5000);
|
|
|
|
if (ret != OK) {
|
|
log("%d: got %d waiting for bytes", sent + i, ret);
|
|
return ret;
|
|
}
|
|
|
|
if (c != file_buf[i]) {
|
|
log("%d: got 0x%02x expected 0x%02x", sent + i, c, file_buf[i]);
|
|
return -EINVAL;
|
|
}
|
|
}
|
|
|
|
ret = get_sync();
|
|
|
|
if (ret != OK) {
|
|
log("timeout waiting for post-verify sync");
|
|
return ret;
|
|
}
|
|
}
|
|
|
|
return OK;
|
|
}
|
|
|
|
int
|
|
PX4IO_Uploader::verify_rev3(size_t fw_size_local)
|
|
{
|
|
int ret;
|
|
uint8_t file_buf[4];
|
|
ssize_t count;
|
|
uint32_t sum = 0;
|
|
uint32_t bytes_read = 0;
|
|
uint32_t crc = 0;
|
|
uint32_t fw_size_remote;
|
|
uint8_t fill_blank = 0xff;
|
|
|
|
log("verify...");
|
|
lseek(_fw_fd, 0, SEEK_SET);
|
|
|
|
ret = get_info(INFO_FLASH_SIZE, fw_size_remote);
|
|
send(PROTO_EOC);
|
|
|
|
if (ret != OK) {
|
|
log("could not read firmware size");
|
|
return ret;
|
|
}
|
|
|
|
/* read through the firmware file again and calculate the checksum*/
|
|
while (bytes_read < fw_size_local) {
|
|
size_t n = fw_size_local - bytes_read;
|
|
if (n > sizeof(file_buf)) {
|
|
n = sizeof(file_buf);
|
|
}
|
|
count = read_with_retry(_fw_fd, file_buf, n);
|
|
|
|
if (count != (ssize_t)n) {
|
|
log("firmware read of %u bytes at %u failed -> %d errno %d",
|
|
(unsigned)n,
|
|
(unsigned)bytes_read,
|
|
(int)count,
|
|
(int)errno);
|
|
}
|
|
|
|
/* set the rest to ff */
|
|
if (count == 0) {
|
|
break;
|
|
}
|
|
/* stop if the file cannot be read */
|
|
if (count < 0)
|
|
return -errno;
|
|
|
|
/* calculate crc32 sum */
|
|
sum = crc32((uint8_t *)&file_buf, sizeof(file_buf), sum);
|
|
|
|
bytes_read += count;
|
|
}
|
|
|
|
/* fill the rest with 0xff */
|
|
while (bytes_read < fw_size_remote) {
|
|
sum = crc32(&fill_blank, sizeof(fill_blank), sum);
|
|
bytes_read += sizeof(fill_blank);
|
|
}
|
|
|
|
/* request CRC from IO */
|
|
send(PROTO_GET_CRC);
|
|
send(PROTO_EOC);
|
|
|
|
ret = recv((uint8_t*)(&crc), sizeof(crc));
|
|
|
|
if (ret != OK) {
|
|
log("did not receive CRC checksum");
|
|
return ret;
|
|
}
|
|
|
|
/* compare the CRC sum from the IO with the one calculated */
|
|
if (sum != crc) {
|
|
log("CRC wrong: received: %d, expected: %d", crc, sum);
|
|
return -EINVAL;
|
|
}
|
|
|
|
return OK;
|
|
}
|
|
|
|
int
|
|
PX4IO_Uploader::reboot()
|
|
{
|
|
send(PROTO_REBOOT);
|
|
send(PROTO_EOC);
|
|
|
|
return OK;
|
|
}
|
|
|
|
void
|
|
PX4IO_Uploader::log(const char *fmt, ...)
|
|
{
|
|
va_list ap;
|
|
|
|
printf("[PX4IO] ");
|
|
va_start(ap, fmt);
|
|
vprintf(fmt, ap);
|
|
va_end(ap);
|
|
printf("\n");
|
|
fflush(stdout);
|
|
}
|