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Jaro
2021-08-22 21:46:31 +02:00
parent 72b67feb25
commit ac26fc6bdd
17 changed files with 3293 additions and 8 deletions
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2
.gitignore vendored
View File

@@ -4,3 +4,5 @@ CMakeCache.txt
timeout
cmake_install.cmake
serial-port/
lib/
Ymodem*/

3
CMakeLists.txt
View File

@@ -4,8 +4,9 @@ project(TEST)
## Target
set(CMAKE_CXX_STANDARD 11)
set(TEST_SRCS main.cpp TimeoutSerial.cpp)
set(TEST_SRCS main.cpp TimeoutSerial.cpp XModem.cpp)
add_executable(timeout ${TEST_SRCS})
set(CMAKE_BUILD_TYPE Debug)
## Link libraries
set(BOOST_LIBS date_time system)

30
Makefile
View File

@@ -150,6 +150,33 @@ TimeoutSerial.cpp.s:
$(MAKE) -f CMakeFiles/timeout.dir/build.make CMakeFiles/timeout.dir/TimeoutSerial.cpp.s
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main.o: main.cpp.o
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@@ -189,6 +216,9 @@ help:
@echo "... TimeoutSerial.o"
@echo "... TimeoutSerial.i"
@echo "... TimeoutSerial.s"
@echo "... XModem.o"
@echo "... XModem.i"
@echo "... XModem.s"
@echo "... main.o"
@echo "... main.i"
@echo "... main.s"

5
TimeoutSerial.cpp
View File

@@ -141,8 +141,11 @@ int TimeoutSerial::readChar(int delay)
timeout = posix_time::seconds(delay);
try {
result = read(1);
return static_cast<int>(result[0]);
std::cerr << std::hex << (uint8_t
)result[0] << endl;
return static_cast<u_int8_t>(result[0]);
} catch (boost::system::system_error& e) {
cerr << "EOF" << endl;
return -1;
}
}

12
XModem.cpp
View File

@@ -21,7 +21,7 @@
#include <string.h>
#include "XModem.h"
#include "TimeoutSerial.h"
#ifdef UTEST
#include "CppUTestExt/MockSupport.h"
#endif
@@ -32,7 +32,7 @@ const unsigned char XModem::SOH = 1;
const unsigned char XModem::EOT = 4;
const unsigned char XModem::CAN = 0x18;
const int XModem::receiveDelay=7000;
const int XModem::receiveDelay=7;
const int XModem::rcvRetryLimit = 10;
@@ -53,7 +53,7 @@ bool XModem::dataAvail(int delay)
{
if (this->byte != -1)
return true;
if ((this->byte = this->recvChar(delay)) != -1)
if ((this->byte = this->serial->readChar(delay)) != -1)
return true;
else
return false;
@@ -68,11 +68,11 @@ int XModem::dataRead(int delay)
this->byte = -1;
return b;
}
return this->recvChar(delay);
return this->serial->readChar(delay);
}
void XModem::dataWrite(char symbol)
{
this->sendData(&symbol, 1);
this->serial->write(&symbol, 1);
}
bool XModem::receiveFrameNo()
{
@@ -148,7 +148,7 @@ bool XModem::receiveFrames(transfer_t transfer)
this->blockNoExt = 1;
this->retries = 0;
while (1) {
char cmd = this->dataRead(1000);
char cmd = this->dataRead(10);
switch(cmd){
case XModem::SOH:
if (!this->receiveFrameNo()) {

1
XModem.h
View File

@@ -16,6 +16,7 @@
// along with this program; if not, write to the Free Software Foundation,
// Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
// -----------------------------------------------------------------------------
#include "TimeoutSerial.h"
typedef enum {
Crc,

1
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35
main.cpp
View File

@@ -9,12 +9,24 @@
#include <boost/algorithm/string.hpp>
#include <boost/algorithm/string/split.hpp>
#include "TimeoutSerial.h"
#include "XModem.h"
using namespace std;
using namespace boost;
typedef vector< string > split_vector_type;
bool dataHandler(unsigned long blockNo, char* buffer, int size)
{
cout << "Block No. = " << blockNo << endl;
for (int i=0 ; i<size ; i++) {
cout << char(buffer[i]) << " ";
}
cout << endl;
return true;
}
int main(int argc, char* argv[])
{
string line;
@@ -65,6 +77,29 @@ int main(int argc, char* argv[])
cout << "vlhkost = " << humidity << endl;
cout << "tlak = " << pressure << endl;
XModem modem(&serial,dataHandler);
serial.writeString("capture\r\n");
sleep(1);
line = serial.readStringUntil("\r\n");
cout << line << endl;
line = serial.readStringUntil("\r\n");
cout << line << endl;
line = serial.readStringUntil("\r\n");
cout << line << endl;
line = serial.readStringUntil("\r\n");
cout << line << endl;
// line = serial.readStringUntil("\r\n");
// cout << line << endl;
serial.writeString("rb\r\n");
sleep(1);
serial.readChar(1);
serial.readChar(1);
modem.receive();
sleep(1);
serial.writeString("free\r\n");
serial.close();
} catch(boost::system::system_error& e)

597
xymodem.c Normal file
View File

@@ -0,0 +1,597 @@
/*
* Handles the X-Modem, Y-Modem and Y-Modem/G protocols
*
* Copyright (C) 2008 Robert Jarzmik
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* This file provides functions to receive X-Modem or Y-Modem(/G) protocols.
*
* References:
* *-Modem: http://www.techfest.com/hardware/modem/xymodem.htm
* XMODEM/YMODEM PROTOCOL REFERENCE, Chuck Forsberg
*/
#include <common.h>
#include <xfuncs.h>
#include <errno.h>
#include <crc.h>
#include <clock.h>
#include <console.h>
#include <stdio.h>
#include <string.h>
#include <fcntl.h>
#include <fs.h>
#include <kfifo.h>
#include <linux/byteorder/generic.h>
#include <xymodem.h>
#define xy_dbg(fmt, args...)
/* Values magic to the protocol */
#define SOH 0x01
#define STX 0x02
#define EOT 0x04
#define ACK 0x06
#define BSP 0x08
#define NAK 0x15
#define CAN 0x18
#define PROTO_XMODEM 0
#define PROTO_YMODEM 1
#define PROTO_YMODEM_G 2
#define MAX_PROTOS 3
#define CRC_NONE 0 /* No CRC checking */
#define CRC_ADD8 1 /* Add of all data bytes */
#define CRC_CRC16 2 /* CCCIT CRC16 */
#define MAX_CRCS 3
#define MAX_RETRIES 10
#define MAX_RETRIES_WITH_CRC 5
#define TIMEOUT_READ (1 * SECOND)
#define TIMEOUT_FLUSH (1 * SECOND)
#define MAX_CAN_BEFORE_ABORT 5
#define INPUT_FIFO_SIZE (4 * 1024) /* Should always be > 1029 */
enum proto_state {
PROTO_STATE_GET_FILENAME = 0,
PROTO_STATE_NEGOCIATE_CRC,
PROTO_STATE_RECEIVE_BODY,
PROTO_STATE_FINISHED_FILE,
PROTO_STATE_FINISHED_XFER,
};
/**
* struct xyz_ctxt - context of a x/y modem (g) transfer
*
* @cdev: console device to support *MODEM transfer
* @fifo: fifo to buffer input from serial line
* This is necessary for low hardware FIFOs buffers as UARTs.
* @mode: protocol (XMODEM, YMODEM or YMODEM/G)
* @crc_mode: CRC_NONE, CRC_ADD8 or CRC_CRC16
* @state: protocol state (as in "state machine")
* @buf: buffer to store the last tranfered buffer chunk
* @filename : filename transmitted by sender (YMODEM* only)
* @fd : file descriptor of the current stored file
* @file_len: length declared by sender (YMODEM* only)
* @nb_received: number of data bytes received since session open
* (this doesn't count resends)
* @total_SOH: number of SOH frames received (128 bytes chunks)
* @total_STX: number of STX frames received (1024 bytes chunks)
* @total_CAN: nubmer of CAN frames received (cancel frames)
*/
struct xyz_ctxt {
struct console_device *cdev;
struct kfifo *fifo;
int mode;
int crc_mode;
enum proto_state state;
char filename[1024];
int fd;
int file_len;
int nb_received;
int next_blk;
int total_SOH, total_STX, total_CAN, total_retries;
};
/**
* struct xy_block - one unitary block of x/y modem (g) transfer
*
* @buf: data buffer
* @len: length of data buffer (can only be 128 or 1024)
* @seq: block sequence number (as in X/Y/YG MODEM protocol)
*/
struct xy_block {
unsigned char buf[1024];
int len;
int seq;
};
/*
* For XMODEM/YMODEM, always try to use the CRC16 versions, called also
* XMODEM/CRC and YMODEM.
* Only fallback to additive CRC (8 bits) if sender doesn't cope with CRC16.
*/
static const char invite_filename_hdr[MAX_PROTOS][MAX_CRCS] = {
{ 0, NAK, 'C' }, /* XMODEM */
{ 0, NAK, 'C' }, /* YMODEM */
{ 0, 'G', 'G' }, /* YMODEM-G */
};
static const char invite_file_body[MAX_PROTOS][MAX_CRCS] = {
{ 0, NAK, 'C' }, /* XMODEM */
{ 0, NAK, 'C' }, /* YMODEM */
{ 0, 'G', 'G' }, /* YMODEM-G */
};
static const char block_ack[MAX_PROTOS][MAX_CRCS] = {
{ 0, ACK, ACK }, /* XMODEM */
{ 0, ACK, ACK }, /* YMODEM */
{ 0, 0, 0 }, /* YMODEM-G */
};
static const char block_nack[MAX_PROTOS][MAX_CRCS] = {
{ 0, NAK, NAK }, /* XMODEM */
{ 0, NAK, NAK }, /* YMODEM */
{ 0, 0, 0 }, /* YMODEM-G */
};
static int input_fifo_fill(struct console_device *cdev, struct kfifo *fifo)
{
while (cdev->tstc(cdev) && kfifo_len(fifo) < INPUT_FIFO_SIZE)
kfifo_putc(fifo, (unsigned char)(cdev->getc(cdev)));
return kfifo_len(fifo);
}
/*
* This function is optimized to :
* - maximize throughput (ie. read as much as is available in lower layer fifo)
* - minimize latencies (no delay or wait timeout if data available)
* - have a timeout
* This is why standard getc() is not used, and input_fifo_fill() exists.
*/
static int xy_gets(struct console_device *cdev, struct kfifo *fifo,
unsigned char *buf, int len, uint64_t timeout)
{
int i, rc;
uint64_t start = get_time_ns();
for (i = 0, rc = 0; rc >= 0 && i < len; ) {
if (is_timeout(start, timeout)) {
rc = -ETIMEDOUT;
continue;
}
if (input_fifo_fill(cdev, fifo))
kfifo_getc(fifo, &buf[i++]);
}
return rc < 0 ? rc : i;
}
static void xy_putc(struct console_device *cdev, unsigned char c)
{
cdev->putc(cdev, c);
}
static void xy_flush(struct console_device *cdev, struct kfifo *fifo)
{
uint64_t start;
start = get_time_ns();
while (cdev->tstc(cdev) &&
!is_timeout(start, TIMEOUT_FLUSH))
cdev->getc(cdev);
mdelay(250);
while (cdev->tstc(cdev) &&
!is_timeout(start, TIMEOUT_FLUSH))
cdev->getc(cdev);
kfifo_reset(fifo);
}
static int is_xmodem(struct xyz_ctxt *proto)
{
return proto->mode == PROTO_XMODEM;
}
static void xy_block_ack(struct xyz_ctxt *proto)
{
unsigned char c = block_ack[proto->mode][proto->crc_mode];
if (c)
xy_putc(proto->cdev, c);
}
static void xy_block_nack(struct xyz_ctxt *proto)
{
unsigned char c = block_nack[proto->mode][proto->crc_mode];
if (c)
xy_putc(proto->cdev, c);
proto->total_retries++;
}
static int check_crc(unsigned char *buf, int len, int crc, int crc_mode)
{
unsigned char crc8 = 0;
uint16_t crc16;
int i;
switch (crc_mode) {
case CRC_ADD8:
for (i = 0; i < len; i++)
crc8 += buf[i];
return crc8 == crc ? 0 : -EBADMSG;
case CRC_CRC16:
crc16 = cyg_crc16(buf, len);
xy_dbg("crc16: received = %x, calculated=%x\n", crc, crc16);
return crc16 == crc ? 0 : -EBADMSG;
case CRC_NONE:
return 0;
default:
return -EBADMSG;
}
}
/**
* xy_read_block - read a X-Modem or Y-Modem(G) block
* @proto: protocol control structure
* @blk: block read
* @timeout: maximal time to get data
*
* This is the pivotal function for block receptions. It attempts to receive one
* block, ie. one 128 bytes or one 1024 bytes block. The received data can also
* be an end of transmission, or a cancel.
*
* Returns :
* >0 : size of the received block
* 0 : last block, ie. end of transmission, ie. EOT
* -EBADMSG : malformed message (ie. sequence bi-bytes are not
* complementary), or CRC check error
* -EILSEQ : block sequence number error wrt previously received block
* -ETIMEDOUT : block not received before timeout passed
* -ECONNABORTED : transfer aborted by sender, ie. CAN
*/
static ssize_t xy_read_block(struct xyz_ctxt *proto, struct xy_block *blk,
uint64_t timeout)
{
ssize_t rc, data_len = 0;
unsigned char hdr, seqs[2], crcs[2];
int crc = 0;
bool hdr_found = 0;
uint64_t start = get_time_ns();
while (!hdr_found) {
rc = xy_gets(proto->cdev, proto->fifo, &hdr, 1, timeout);
xy_dbg("read 0x%x(%c) -> %d\n", hdr, hdr, rc);
if (rc < 0)
goto out;
if (is_timeout(start, timeout))
goto timeout;
switch (hdr) {
case SOH:
data_len = 128;
hdr_found = 1;
proto->total_SOH++;
break;
case STX:
data_len = 1024;
hdr_found = 1;
proto->total_STX++;
break;
case CAN:
rc = -ECONNABORTED;
if (proto->total_CAN++ > MAX_CAN_BEFORE_ABORT)
goto out;
break;
case EOT:
rc = 0;
blk->len = 0;
goto out;
default:
break;
}
}
blk->seq = 0;
rc = xy_gets(proto->cdev, proto->fifo, seqs, 2, timeout);
if (rc < 0)
goto out;
blk->seq = seqs[0];
if (255 - seqs[0] != seqs[1])
return -EBADMSG;
rc = xy_gets(proto->cdev, proto->fifo, blk->buf, data_len, timeout);
if (rc < 0)
goto out;
blk->len = rc;
switch (proto->crc_mode) {
case CRC_ADD8:
rc = xy_gets(proto->cdev, proto->fifo, crcs, 1, timeout);
crc = crcs[0];
break;
case CRC_CRC16:
rc = xy_gets(proto->cdev, proto->fifo, crcs, 2, timeout);
crc = (crcs[0] << 8) + crcs[1];
break;
case CRC_NONE:
rc = 0;
break;
}
if (rc < 0)
goto out;
rc = check_crc(blk->buf, data_len, crc, proto->crc_mode);
if (rc < 0)
goto out;
return data_len;
timeout:
return -ETIMEDOUT;
out:
return rc;
}
static int check_blk_seq(struct xyz_ctxt *proto, struct xy_block *blk,
int read_rc)
{
if (blk->seq == ((proto->next_blk - 1) % 256))
return -EALREADY;
if (blk->seq != proto->next_blk)
return -EILSEQ;
return read_rc;
}
static int parse_first_block(struct xyz_ctxt *proto, struct xy_block *blk)
{
int filename_len;
char *str_num;
filename_len = strlen(blk->buf);
if (filename_len > blk->len)
return -EINVAL;
strlcpy(proto->filename, blk->buf, sizeof(proto->filename));
str_num = blk->buf + filename_len + 1;
strsep(&str_num, " ");
proto->file_len = simple_strtoul(blk->buf + filename_len + 1, NULL, 10);
return 1;
}
static int xy_get_file_header(struct xyz_ctxt *proto)
{
struct xy_block blk;
int tries, rc = 0;
memset(&blk, 0, sizeof(blk));
proto->state = PROTO_STATE_GET_FILENAME;
proto->crc_mode = CRC_CRC16;
for (tries = 0; tries < MAX_RETRIES; tries++) {
xy_putc(proto->cdev,
invite_filename_hdr[proto->mode][proto->crc_mode]);
rc = xy_read_block(proto, &blk, 3 * SECOND);
xy_dbg("read block returned %d\n", rc);
switch (rc) {
case -ECONNABORTED:
goto fail;
case -ETIMEDOUT:
case -EBADMSG:
if (proto->mode != PROTO_YMODEM_G)
xy_flush(proto->cdev, proto->fifo);
break;
case -EALREADY:
default:
proto->next_blk = 1;
xy_block_ack(proto);
proto->state = PROTO_STATE_NEGOCIATE_CRC;
rc = parse_first_block(proto, &blk);
return rc;
}
if (rc < 0 && tries++ >= MAX_RETRIES_WITH_CRC)
proto->crc_mode = CRC_ADD8;
}
rc = -ETIMEDOUT;
fail:
proto->total_retries += tries;
return rc;
}
static int xy_await_header(struct xyz_ctxt *proto)
{
int rc;
rc = xy_get_file_header(proto);
if (rc < 0)
return rc;
proto->state = PROTO_STATE_NEGOCIATE_CRC;
xy_dbg("header received, filename=%s, file length=%d\n",
proto->filename, proto->file_len);
if (proto->filename[0])
proto->fd = open(proto->filename, O_WRONLY | O_CREAT);
else
proto->state = PROTO_STATE_FINISHED_XFER;
proto->nb_received = 0;
return rc;
}
static void xy_finish_file(struct xyz_ctxt *proto)
{
close(proto->fd);
proto->fd = 0;
proto->state = PROTO_STATE_FINISHED_FILE;
}
static struct xyz_ctxt *xymodem_open(struct console_device *cdev,
int proto_mode, int xmodem_fd)
{
struct xyz_ctxt *proto;
proto = xzalloc(sizeof(struct xyz_ctxt));
proto->fifo = kfifo_alloc(INPUT_FIFO_SIZE);
proto->mode = proto_mode;
proto->cdev = cdev;
proto->crc_mode = CRC_CRC16;
if (is_xmodem(proto)) {
proto->fd = xmodem_fd;
proto->state = PROTO_STATE_NEGOCIATE_CRC;
} else {
proto->state = PROTO_STATE_GET_FILENAME;
}
xy_flush(proto->cdev, proto->fifo);
return proto;
}
static int xymodem_handle(struct xyz_ctxt *proto)
{
int rc = 0, xfer_max, len = 0, again = 1, remain;
int crc_tries = 0, same_blk_retries = 0;
unsigned char invite;
struct xy_block blk;
while (again) {
switch (proto->state) {
case PROTO_STATE_GET_FILENAME:
crc_tries = 0;
rc = xy_await_header(proto);
if (rc < 0)
goto fail;
continue;
case PROTO_STATE_FINISHED_FILE:
if (is_xmodem(proto))
proto->state = PROTO_STATE_FINISHED_XFER;
else
proto->state = PROTO_STATE_GET_FILENAME;
xy_putc(proto->cdev, ACK);
continue;
case PROTO_STATE_FINISHED_XFER:
again = 0;
rc = 0;
goto out;
case PROTO_STATE_NEGOCIATE_CRC:
invite = invite_file_body[proto->mode][proto->crc_mode];
proto->next_blk = 1;
if (crc_tries++ > MAX_RETRIES_WITH_CRC)
proto->crc_mode = CRC_ADD8;
xy_putc(proto->cdev, invite);
/* Fall through */
case PROTO_STATE_RECEIVE_BODY:
rc = xy_read_block(proto, &blk, 3 * SECOND);
if (rc > 0) {
rc = check_blk_seq(proto, &blk, rc);
proto->state = PROTO_STATE_RECEIVE_BODY;
}
break;
}
if (proto->state != PROTO_STATE_RECEIVE_BODY)
continue;
switch (rc) {
case -ECONNABORTED:
goto fail;
case -ETIMEDOUT:
if (proto->mode == PROTO_YMODEM_G)
goto fail;
xy_flush(proto->cdev, proto->fifo);
xy_block_nack(proto);
break;
case -EBADMSG:
case -EILSEQ:
if (proto->mode == PROTO_YMODEM_G)
goto fail;
xy_flush(proto->cdev, proto->fifo);
xy_block_nack(proto);
break;
case -EALREADY:
xy_block_ack(proto);
break;
case 0:
xy_finish_file(proto);
break;
default:
remain = proto->file_len - proto->nb_received;
if (is_xmodem(proto))
xfer_max = blk.len;
else
xfer_max = min(blk.len, remain);
rc = write(proto->fd, blk.buf, xfer_max);
proto->next_blk = ((blk.seq + 1) % 256);
proto->nb_received += rc;
len += rc;
xy_block_ack(proto);
break;
}
if (rc < 0)
same_blk_retries++;
else
same_blk_retries = 0;
if (same_blk_retries > MAX_RETRIES)
goto fail;
}
out:
return rc;
fail:
if (proto->fd)
close(proto->fd);
return rc;
}
static void xymodem_close(struct xyz_ctxt *proto)
{
xy_flush(proto->cdev, proto->fifo);
printf("\nxyModem - %d(SOH)/%d(STX)/%d(CAN) packets,"
" %d retries\n",
proto->total_SOH, proto->total_STX,
proto->total_CAN, proto->total_retries);
kfifo_free(proto->fifo);
}
int do_load_serial_xmodem(struct console_device *cdev, int fd)
{
struct xyz_ctxt *proto;
int rc;
proto = xymodem_open(cdev, PROTO_XMODEM, fd);
do {
rc = xymodem_handle(proto);
} while (rc > 0);
xymodem_close(proto);
return rc < 0 ? rc : 0;
}
EXPORT_SYMBOL(do_load_serial_xmodem);
int do_load_serial_ymodem(struct console_device *cdev)
{
struct xyz_ctxt *proto;
int rc;
proto = xymodem_open(cdev, PROTO_YMODEM, 0);
do {
rc = xymodem_handle(proto);
} while (rc > 0);
xymodem_close(proto);
return rc < 0 ? rc : 0;
}
EXPORT_SYMBOL(do_load_serial_ymodem);
int do_load_serial_ymodemg(struct console_device *cdev)
{
struct xyz_ctxt *proto;
int rc;
proto = xymodem_open(cdev, PROTO_YMODEM_G, 0);
do {
rc = xymodem_handle(proto);
} while (rc > 0);
xymodem_close(proto);
return rc < 0 ? rc : 0;
}
EXPORT_SYMBOL(do_load_serial_ymodemg);

671
ymodem.cpp Normal file
View File

@@ -0,0 +1,671 @@
/**
******************************************************************************
* @file IAP/src/ymodem.c
* @author MCD Application Team
* @version V3.3.0
* @date 10/15/2010
* @brief This file provides all the software functions related to the ymodem
* protocol.
******************************************************************************
* @copy
*
* THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS
* WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE
* TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY
* DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING
* FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE
* CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS.
*
* <h2><center>&copy; COPYRIGHT 2010 STMicroelectronics</center></h2>
*/
#include <string>
#include <algorithm>
#include <iostream>
#include <boost/bind.hpp>
#include <sys/ioctl.h>
#include "ymodem.h"
uint8_t file_name[FILE_NAME_LENGTH];
uint32_t FlashDestination = ApplicationAddress; /* Flash user program offset */
uint16_t PageSize = PAGE_SIZE;
uint32_t EraseCounter = 0x0;
uint32_t NbrOfPage = 0;
FLASH_Status FLASHStatus = FLASH_COMPLETE;
uint32_t RamSource;
extern uint8_t tab_1024[1024];
/* Private function prototypes -----------------------------------------------*/
/* Private functions ---------------------------------------------------------*/
/**
* @brief Receive byte from sender
* @param c: Character
* @param timeout: Timeout
* @retval 0: Byte received
* -1: Timeout
*/
static int32_t Receive_Byte (uint8_t *c, uint32_t timeout)
{
while (timeout-- > 0)
{
if (SerialKeyPressed(c) == 1)
{
return 0;
}
}
return -1;
}
/**
* @brief Send a byte
* @param c: Character
* @retval 0: Byte sent
*/
static uint32_t Send_Byte (uint8_t c)
{
SerialPutChar(c);
return 0;
}
/**
* @brief Receive a packet from sender
* @param data
* @param length
* @param timeout
* 0: end of transmission
* -1: abort by sender
* >0: packet length
* @retval 0: normally return
* -1: timeout or packet error
* 1: abort by user
*/
static int32_t Receive_Packet (uint8_t *data, int32_t *length, uint32_t timeout)
{
uint16_t i, packet_size;
uint8_t c;
*length = 0;
if (Receive_Byte(&c, timeout) != 0)
{
return -1;
}
switch (c)
{
case SOH:
packet_size = PACKET_SIZE;
break;
case STX:
packet_size = PACKET_1K_SIZE;
break;
case EOT:
return 0;
case CA:
if ((Receive_Byte(&c, timeout) == 0) && (c == CA))
{
*length = -1;
return 0;
}
else
{
return -1;
}
case ABORT1:
case ABORT2:
return 1;
default:
return -1;
}
*data = c;
for (i = 1; i < (packet_size + PACKET_OVERHEAD); i ++)
{
if (Receive_Byte(data + i, timeout) != 0)
{
return -1;
}
}
if (data[PACKET_SEQNO_INDEX] != ((data[PACKET_SEQNO_COMP_INDEX] ^ 0xff) & 0xff))
{
return -1;
}
*length = packet_size;
return 0;
}
/**
* @brief Receive a file using the ymodem protocol
* @param buf: Address of the first byte
* @retval The size of the file
*/
int32_t Ymodem_Receive (uint8_t *buf)
{
uint8_t packet_data[PACKET_1K_SIZE + PACKET_OVERHEAD], file_size[FILE_SIZE_LENGTH], *file_ptr, *buf_ptr;
int32_t i, j, packet_length, session_done, file_done, packets_received, errors, session_begin, size = 0;
/* Initialize FlashDestination variable */
FlashDestination = ApplicationAddress;
for (session_done = 0, errors = 0, session_begin = 0; ;)
{
for (packets_received = 0, file_done = 0, buf_ptr = buf; ;)
{
switch (Receive_Packet(packet_data, &packet_length, NAK_TIMEOUT))
{
case 0:
errors = 0;
switch (packet_length)
{
/* Abort by sender */
case - 1:
Send_Byte(ACK);
return 0;
/* End of transmission */
case 0:
Send_Byte(ACK);
file_done = 1;
break;
/* Normal packet */
default:
if ((packet_data[PACKET_SEQNO_INDEX] & 0xff) != (packets_received & 0xff))
{
Send_Byte(NAK);
}
else
{
if (packets_received == 0)
{
/* Filename packet */
if (packet_data[PACKET_HEADER] != 0)
{
/* Filename packet has valid data */
for (i = 0, file_ptr = packet_data + PACKET_HEADER; (*file_ptr != 0) && (i < FILE_NAME_LENGTH);)
{
file_name[i++] = *file_ptr++;
}
file_name[i++] = '\0';
for (i = 0, file_ptr ++; (*file_ptr != ' ') && (i < FILE_SIZE_LENGTH);)
{
file_size[i++] = *file_ptr++;
}
file_size[i++] = '\0';
Str2Int(file_size, &size);
/* Test the size of the image to be sent */
/* Image size is greater than Flash size */
if (size > (FLASH_SIZE - 1))
{
/* End session */
Send_Byte(CA);
Send_Byte(CA);
return -1;
}
/* Erase the needed pages where the user application will be loaded */
/* Define the number of page to be erased */
NbrOfPage = FLASH_PagesMask(size);
/* Erase the FLASH pages */
for (EraseCounter = 0; (EraseCounter < NbrOfPage) && (FLASHStatus == FLASH_COMPLETE); EraseCounter++)
{
FLASHStatus = FLASH_ErasePage(FlashDestination + (PageSize * EraseCounter));
}
Send_Byte(ACK);
Send_Byte(CRC16);
}
/* Filename packet is empty, end session */
else
{
Send_Byte(ACK);
file_done = 1;
session_done = 1;
break;
}
}
/* Data packet */
else
{
memcpy(buf_ptr, packet_data + PACKET_HEADER, packet_length);
RamSource = (uint32_t)buf;
for (j = 0;(j < packet_length) && (FlashDestination < ApplicationAddress + size);j += 4)
{
/* Program the data received into STM32F10x Flash */
FLASH_ProgramWord(FlashDestination, *(uint32_t*)RamSource);
if (*(uint32_t*)FlashDestination != *(uint32_t*)RamSource)
{
/* End session */
Send_Byte(CA);
Send_Byte(CA);
return -2;
}
FlashDestination += 4;
RamSource += 4;
}
Send_Byte(ACK);
}
packets_received ++;
session_begin = 1;
}
}
break;
case 1:
Send_Byte(CA);
Send_Byte(CA);
return -3;
default:
if (session_begin > 0)
{
errors ++;
}
if (errors > MAX_ERRORS)
{
Send_Byte(CA);
Send_Byte(CA);
return 0;
}
Send_Byte(CRC16);
break;
}
if (file_done != 0)
{
break;
}
}
if (session_done != 0)
{
break;
}
}
return (int32_t)size;
}
/**
* @brief check response using the ymodem protocol
* @param buf: Address of the first byte
* @retval The size of the file
*/
int32_t Ymodem_CheckResponse(uint8_t c)
{
return 0;
}
/**
* @brief Prepare the first block
* @param timeout
* 0: end of transmission
*/
void Ymodem_PrepareIntialPacket(uint8_t *data, const uint8_t* fileName, uint32_t *length)
{
uint16_t i, j;
uint8_t file_ptr[10];
/* Make first three packet */
data[0] = SOH;
data[1] = 0x00;
data[2] = 0xff;
/* Filename packet has valid data */
for (i = 0; (fileName[i] != '\0') && (i < FILE_NAME_LENGTH);i++)
{
data[i + PACKET_HEADER] = fileName[i];
}
data[i + PACKET_HEADER] = 0x00;
Int2Str (file_ptr, *length);
for (j =0, i = i + PACKET_HEADER + 1; file_ptr[j] != '\0' ; )
{
data[i++] = file_ptr[j++];
}
for (j = i; j < PACKET_SIZE + PACKET_HEADER; j++)
{
data[j] = 0;
}
}
/**
* @brief Prepare the data packet
* @param timeout
* 0: end of transmission
*/
void Ymodem_PreparePacket(uint8_t *SourceBuf, uint8_t *data, uint8_t pktNo, uint32_t sizeBlk)
{
uint16_t i, size, packetSize;
uint8_t* file_ptr;
/* Make first three packet */
packetSize = sizeBlk >= PACKET_1K_SIZE ? PACKET_1K_SIZE : PACKET_SIZE;
size = sizeBlk < packetSize ? sizeBlk :packetSize;
if (packetSize == PACKET_1K_SIZE)
{
data[0] = STX;
}
else
{
data[0] = SOH;
}
data[1] = pktNo;
data[2] = (~pktNo);
file_ptr = SourceBuf;
/* Filename packet has valid data */
for (i = PACKET_HEADER; i < size + PACKET_HEADER;i++)
{
data[i] = *file_ptr++;
}
if ( size <= packetSize)
{
for (i = size + PACKET_HEADER; i < packetSize + PACKET_HEADER; i++)
{
data[i] = 0x1A; /* EOF (0x1A) or 0x00 */
}
}
}
/**
* @brief Update CRC16 for input byte
* @param CRC input value
* @param input byte
* @retval None
*/
uint16_t UpdateCRC16(uint16_t crcIn, uint8_t byte)
{
uint32_t crc = crcIn;
uint32_t in = byte|0x100;
do
{
crc <<= 1;
in <<= 1;
if(in&0x100)
++crc;
if(crc&0x10000)
crc ^= 0x1021;
}
while(!(in&0x10000));
return crc&0xffffu;
}
/**
* @brief Cal CRC16 for YModem Packet
* @param data
* @param length
* @retval None
*/
uint16_t Cal_CRC16(const uint8_t* data, uint32_t size)
{
uint32_t crc = 0;
const uint8_t* dataEnd = data+size;
while(data<dataEnd)
crc = UpdateCRC16(crc,*data++);
crc = UpdateCRC16(crc,0);
crc = UpdateCRC16(crc,0);
return crc&0xffffu;
}
/**
* @brief Cal Check sum for YModem Packet
* @param data
* @param length
* @retval None
*/
uint8_t CalChecksum(const uint8_t* data, uint32_t size)
{
uint32_t sum = 0;
const uint8_t* dataEnd = data+size;
while(data < dataEnd )
sum += *data++;
return sum&0xffu;
}
/**
* @brief Transmit a data packet using the ymodem protocol
* @param data
* @param length
* @retval None
*/
void Ymodem_SendPacket(uint8_t *data, uint16_t length)
{
uint16_t i;
i = 0;
while (i < length)
{
Send_Byte(data[i]);
i++;
}
}
/**
* @brief Transmit a file using the ymodem protocol
* @param buf: Address of the first byte
* @retval The size of the file
*/
uint8_t Ymodem_Transmit (uint8_t *buf, const uint8_t* sendFileName, uint32_t sizeFile)
{
uint8_t packet_data[PACKET_1K_SIZE + PACKET_OVERHEAD];
uint8_t FileName[FILE_NAME_LENGTH];
uint8_t *buf_ptr, tempCheckSum ;
uint16_t tempCRC, blkNumber;
uint8_t receivedC[2], CRC16_F = 0, i;
uint32_t errors, ackReceived, size = 0, pktSize;
errors = 0;
ackReceived = 0;
for (i = 0; i < (FILE_NAME_LENGTH - 1); i++)
{
FileName[i] = sendFileName[i];
}
CRC16_F = 1;
/* Prepare first block */
Ymodem_PrepareIntialPacket(&packet_data[0], FileName, &sizeFile);
do
{
/* Send Packet */
Ymodem_SendPacket(packet_data, PACKET_SIZE + PACKET_HEADER);
/* Send CRC or Check Sum based on CRC16_F */
if (CRC16_F)
{
tempCRC = Cal_CRC16(&packet_data[3], PACKET_SIZE);
Send_Byte(tempCRC >> 8);
Send_Byte(tempCRC & 0xFF);
}
else
{
tempCheckSum = CalChecksum (&packet_data[3], PACKET_SIZE);
Send_Byte(tempCheckSum);
}
/* Wait for Ack and 'C' */
if (Receive_Byte(&receivedC[0], 10000) == 0)
{
if (receivedC[0] == ACK)
{
/* Packet transfered correctly */
ackReceived = 1;
}
}
else
{
errors++;
}
}while (!ackReceived && (errors < 0x0A));
if (errors >= 0x0A)
{
return errors;
}
buf_ptr = buf;
size = sizeFile;
blkNumber = 0x01;
/* Here 1024 bytes package is used to send the packets */
/* Resend packet if NAK for a count of 10 else end of commuincation */
while (size)
{
/* Prepare next packet */
Ymodem_PreparePacket(buf_ptr, &packet_data[0], blkNumber, size);
ackReceived = 0;
receivedC[0]= 0;
errors = 0;
do
{
/* Send next packet */
if (size >= PACKET_1K_SIZE)
{
pktSize = PACKET_1K_SIZE;
}
else
{
pktSize = PACKET_SIZE;
}
Ymodem_SendPacket(packet_data, pktSize + PACKET_HEADER);
/* Send CRC or Check Sum based on CRC16_F */
/* Send CRC or Check Sum based on CRC16_F */
if (CRC16_F)
{
tempCRC = Cal_CRC16(&packet_data[3], pktSize);
Send_Byte(tempCRC >> 8);
Send_Byte(tempCRC & 0xFF);
}
else
{
tempCheckSum = CalChecksum (&packet_data[3], pktSize);
Send_Byte(tempCheckSum);
}
/* Wait for Ack */
if ((Receive_Byte(&receivedC[0], 100000) == 0) && (receivedC[0] == ACK))
{
ackReceived = 1;
if (size > pktSize)
{
buf_ptr += pktSize;
size -= pktSize;
if (blkNumber == (FLASH_IMAGE_SIZE/1024))
{
return 0xFF; /* error */
}
else
{
blkNumber++;
}
}
else
{
buf_ptr += pktSize;
size = 0;
}
}
else
{
errors++;
}
}while(!ackReceived && (errors < 0x0A));
/* Resend packet if NAK for a count of 10 else end of commuincation */
if (errors >= 0x0A)
{
return errors;
}
}
ackReceived = 0;
receivedC[0] = 0x00;
errors = 0;
do
{
Send_Byte(EOT);
/* Send (EOT); */
/* Wait for Ack */
if ((Receive_Byte(&receivedC[0], 10000) == 0) && receivedC[0] == ACK)
{
ackReceived = 1;
}
else
{
errors++;
}
}while (!ackReceived && (errors < 0x0A));
if (errors >= 0x0A)
{
return errors;
}
/* Last packet preparation */
ackReceived = 0;
receivedC[0] = 0x00;
errors = 0;
packet_data[0] = SOH;
packet_data[1] = 0;
packet_data [2] = 0xFF;
for (i = PACKET_HEADER; i < (PACKET_SIZE + PACKET_HEADER); i++)
{
packet_data [i] = 0x00;
}
do
{
/* Send Packet */
Ymodem_SendPacket(packet_data, PACKET_SIZE + PACKET_HEADER);
/* Send CRC or Check Sum based on CRC16_F */
tempCRC = Cal_CRC16(&packet_data[3], PACKET_SIZE);
Send_Byte(tempCRC >> 8);
Send_Byte(tempCRC & 0xFF);
/* Wait for Ack and 'C' */
if (Receive_Byte(&receivedC[0], 10000) == 0)
{
if (receivedC[0] == ACK)
{
/* Packet transfered correctly */
ackReceived = 1;
}
}
else
{
errors++;
}
}while (!ackReceived && (errors < 0x0A));
/* Resend packet if NAK for a count of 10 else end of commuincation */
if (errors >= 0x0A)
{
return errors;
}
do
{
Send_Byte(EOT);
/* Send (EOT); */
/* Wait for Ack */
if ((Receive_Byte(&receivedC[0], 10000) == 0) && receivedC[0] == ACK)
{
ackReceived = 1;
}
else
{
errors++;
}
}while (!ackReceived && (errors < 0x0A));
if (errors >= 0x0A)
{
return errors;
}
return 0; /* file trasmitted successfully */
}
/**
* @}
*/
/*******************(C)COPYRIGHT 2010 STMicroelectronics *****END OF FILE****/

63
ymodem.h Normal file
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/**
******************************************************************************
* @file IAP/inc/ymodem.h
* @author MCD Application Team
* @version V3.3.0
* @date 10/15/2010
* @brief This file provides all the software function headers of the ymodem.c
* file.
******************************************************************************
* @copy
*
* THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS
* WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE
* TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY
* DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING
* FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE
* CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS.
*
* <h2><center>&copy; COPYRIGHT 2010 STMicroelectronics</center></h2>
*/
/* Define to prevent recursive inclusion -------------------------------------*/
#ifndef _YMODEM_H_
#define _YMODEM_H_
/* Includes ------------------------------------------------------------------*/
/* Exported types ------------------------------------------------------------*/
/* Exported constants --------------------------------------------------------*/
#define PACKET_SEQNO_INDEX (1)
#define PACKET_SEQNO_COMP_INDEX (2)
#define PACKET_HEADER (3)
#define PACKET_TRAILER (2)
#define PACKET_OVERHEAD (PACKET_HEADER + PACKET_TRAILER)
#define PACKET_SIZE (128)
#define PACKET_1K_SIZE (1024)
#define FILE_NAME_LENGTH (256)
#define FILE_SIZE_LENGTH (16)
#define SOH (0x01) /* start of 128-byte data packet */
#define STX (0x02) /* start of 1024-byte data packet */
#define EOT (0x04) /* end of transmission */
#define ACK (0x06) /* acknowledge */
#define NAK (0x15) /* negative acknowledge */
#define CA (0x18) /* two of these in succession aborts transfer */
#define CRC16 (0x43) /* 'C' == 0x43, request 16-bit CRC */
#define ABORT1 (0x41) /* 'A' == 0x41, abort by user */
#define ABORT2 (0x61) /* 'a' == 0x61, abort by user */
#define NAK_TIMEOUT (0x100000)
#define MAX_ERRORS (5)
/* Exported macro ------------------------------------------------------------*/
/* Exported functions ------------------------------------------------------- */
int32_t Ymodem_Receive (uint8_t *);
uint8_t Ymodem_Transmit (uint8_t *,const uint8_t* , uint32_t );
#endif /* _YMODEM_H_ */
/*******************(C)COPYRIGHT 2010 STMicroelectronics *****END OF FILE****/