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multiboot_tool
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Add simple AVR109/butterfly tool

master
Olaf Rempel 1 month ago
parent
fcbcbcb9af
commit
9119ee215b
7 changed files with 809 additions and 19 deletions
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  1. +1
    -0
      .gitignore
  2. +1
    -1
      Makefile
  3. +766
    -0
      butterfly.c
  4. +29
    -17
      chipinfo_avr.c
  5. +10
    -1
      chipinfo_avr.h
  6. +1
    -0
      multiboot.c
  7. +1
    -0
      multiboot.h

+ 1
- 0
.gitignore View File

@@ -3,3 +3,4 @@ twiboot
mpmboot
funkboot
eprom_prog
butterfly_prog

+ 1
- 1
Makefile View File

@@ -1,4 +1,4 @@
TARGETS=twiboot mpmboot funkboot eprom_prog
TARGETS=twiboot mpmboot funkboot eprom_prog butterfly_prog
TARGET_DIR=~/bin
BUILD_DIR = build



+ 766
- 0
butterfly.c View File

@@ -0,0 +1,766 @@
/***************************************************************************
* Copyright (C) 01/2020 by Olaf Rempel *
* razzor@kopf-tisch.de *
* *
* 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; version 2 of the License, *
* *
* 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. *
* *
* You should have received a copy of the GNU General Public License *
* along with this program; if not, write to the *
* Free Software Foundation, Inc., *
* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
***************************************************************************/
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <string.h>

#include <sys/socket.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <termios.h>
#include <sys/time.h>

#include "chipinfo_avr.h"
#include "multiboot.h"
#include "optarg.h"

#define ARRAY_SIZE(x) (sizeof(x) / sizeof(*x))
#define MIN(a, b) ((a) < (b) ? (a) : (b))

#define SERIAL_BAUDRATE B115200
#define SERIAL_TIMEOUT 1000

struct multiboot_ops butterfly_ops;

typedef struct bfly_privdata_s
{
char * p_device;
struct termios oldtio;
int fd;

uint8_t twi_address;
uint8_t chip_erase;

uint16_t buffersize;
uint16_t flashsize;
uint16_t eepromsize;

uint8_t progmode_active;
} bfly_privdata_t;

static struct option bfly_optargs[] =
{
{ "address", 1, 0, 'a' }, /* [ -a <address ] */
{ "device", 1, 0, 'd' }, /* -d <device> */
{ "erase", 0, 0, 'e' }, /* [ -e ] */
};

/* *************************************************************************
* bfly_optarg_cb
* ************************************************************************* */
static int bfly_optarg_cb(int val, const char *arg, void *privdata)
{
bfly_privdata_t * p_priv;

p_priv = (bfly_privdata_t *)privdata;

switch (val)
{
case 'a': /* address */
{
char *endptr;

p_priv->twi_address = strtol(arg, &endptr, 16);
if ((*endptr != '\0') ||
(p_priv->twi_address < 0x01) ||
(p_priv->twi_address > 0x7F)
)
{
fprintf(stderr, "invalid address: '%s'\n", arg);
return -1;
}
}
break;

case 'd': /* device */
if (p_priv->p_device != NULL)
{
fprintf(stderr, "invalid device: '%s'\n", arg);
return -1;
}

p_priv->p_device = strdup(optarg);
if (p_priv->p_device == NULL)
{
perror("strdup()");
return -1;
}
break;

case 'e': /* no verify after write */
p_priv->chip_erase = 1;
break;

case 'h':
case '?': /* error */
fprintf(stderr, "Usage: butterfly_prog [options]\n"
" -a <address> - optional: twi address for twiboot bridge mode\n"
" -d <device> - selects butterfly serial device\n"
" -r <flash|eeprom>:<file> - reads flash/eeprom to file (.bin | .hex | -)\n"
" -w <flash|eeprom>:<file> - write flash/eeprom from file (.bin | .hex)\n"
" -n - disable verify after write\n"
" -p <0|1|2> - progress bar mode\n"
"\n"
"Example: butterfly_prog -d /dev/ttyUSB0 -w flash:code.hex\n"
"\n");

return -1;

default:
return 1;
}

return 0;
} /* bfly_optarg_cb */


/* *************************************************************************
* butterfly_alloc
* ************************************************************************* */
static struct multiboot * butterfly_alloc(void)
{
struct multiboot * mboot = malloc(sizeof(struct multiboot));
if (mboot == NULL)
{
return NULL;
}

memset(mboot, 0x00, sizeof(struct multiboot));
mboot->ops= &butterfly_ops;

bfly_privdata_t * p_priv = malloc(sizeof(bfly_privdata_t));
if (p_priv == NULL)
{
free(mboot);
return NULL;
}

memset(p_priv, 0x00, sizeof(bfly_privdata_t));

optarg_register(bfly_optargs, ARRAY_SIZE(bfly_optargs),
bfly_optarg_cb, (void *)p_priv);

mboot->privdata = p_priv;
return mboot;
} /* butterfly_alloc */


/* *************************************************************************
* butterfly_free
* ************************************************************************* */
static void butterfly_free(struct multiboot * p_mboot)
{
bfly_privdata_t * p_priv = (bfly_privdata_t *)p_mboot->privdata;

if (p_priv->p_device != NULL)
{
free(p_priv->p_device);
}

free(p_priv);
free(p_mboot);
} /* butterfly_free */


/* *************************************************************************
* butterfly_get_memtype
* ************************************************************************* */
static int butterfly_get_memtype(struct multiboot * p_mboot,
const char * p_memname)
{
/* unused parameter */
(void)p_mboot;

if (strcmp(p_memname, "flash") == 0)
{
return 'F';
}
else if (strcmp(p_memname, "eeprom") == 0)
{
return 'E';
}

return -1;
} /* butterfly_get_memtype */


/* *************************************************************************
* butterfly_get_memsize
* ************************************************************************* */
static int butterfly_get_memsize(struct multiboot * p_mboot,
int memtype)
{
bfly_privdata_t * p_priv = (bfly_privdata_t *)p_mboot->privdata;

if (!p_priv->progmode_active)
{
return 0;
}

switch (memtype)
{
case 'F':
return p_priv->flashsize;

case 'E':
return p_priv->eepromsize;

default:
return 0;
}
} /* butterfly_get_memsize */


/* *************************************************************************
* butterfly_close_device
* ************************************************************************* */
static void butterfly_close_device(bfly_privdata_t * p_priv)
{
/* delay close() / tcsetattr() */
usleep(100000);

tcsetattr(p_priv->fd, TCSANOW, &p_priv->oldtio);
close(p_priv->fd);
} /* butterfly_close_device */


/* *************************************************************************
* butterlfy_open_device
* ************************************************************************* */
static int butterfly_open_device(bfly_privdata_t * p_priv)
{
p_priv->fd = open(p_priv->p_device, O_RDWR | O_NOCTTY | O_CLOEXEC);
if (p_priv->fd < 0)
{
perror("open()");
return -1;
}

if (tcgetattr(p_priv->fd, &p_priv->oldtio) < 0)
{
perror("tcgetattr(oldtio)");
close(p_priv->fd);
return -1;
}

struct termios newtio;
memset(&newtio, 0, sizeof(newtio));

newtio.c_iflag |= IGNBRK;
newtio.c_cflag |= SERIAL_BAUDRATE | CS8 | CLOCAL | CREAD;

newtio.c_cc[VMIN] = 1;
newtio.c_cc[VTIME] = 0;

int err = tcsetattr(p_priv->fd, TCSANOW, &newtio);
if (err < 0)
{
perror("tcsetattr(newtio)");
close(p_priv->fd);
return -1;
}

return 0;
} /* butterlfy_open_device */


/* *************************************************************************
* butterfly_serial_read
* ************************************************************************* */
static int butterfly_serial_read(int fd, void * data, int size,
unsigned int timeout_ms)
{
int pos = 0;

while (1)
{
fd_set fdset;
struct timeval timeout;
struct timeval * p_timeout = NULL;

FD_ZERO(&fdset);
FD_SET(fd, &fdset);

if (timeout_ms != 0)
{
p_timeout = &timeout;

timeout.tv_sec = timeout_ms / 1000;
timeout.tv_usec = (timeout_ms % 1000) * 1000;
}

int ret = select(fd +1, &fdset, NULL, NULL, p_timeout);
if (ret == -1)
{
perror("select");
return -1;
}
else if (ret == 0)
{
break;
}
else if (FD_ISSET(fd, &fdset))
{
int len = read(fd, data + pos, size - pos);
if (len < 0)
{
return -1;
}
else
{
pos += len;
if (pos == size)
{
break;
}
}
}
}

return pos;
} /* butterfly_serial_read */


/* *************************************************************************
* butterfly_expect_cr
* ************************************************************************* */
static int butterfly_expect_cr(bfly_privdata_t * p_priv)
{
uint8_t buffer[1];
int result;

result = butterfly_serial_read(p_priv->fd, buffer, sizeof(buffer),
SERIAL_TIMEOUT);
if ((result == sizeof(buffer)) &&
(buffer[0] == '\r')
)
{
return 0;
}

return -1;
} /* butterfly_expect_cr */


/* *************************************************************************
* butterfly_enter_progmode
* ************************************************************************* */
static int butterfly_enter_progmode(bfly_privdata_t * p_priv)
{
if (p_priv->twi_address == 0x00)
{
(void)write(p_priv->fd, "P", 1);
}
else
{
uint8_t cmd[2] = { 'I' , p_priv->twi_address };
(void)write(p_priv->fd, cmd, 2);
}

return butterfly_expect_cr(p_priv);
} /* butterfly_enter_progmode */


/* *************************************************************************
* butterfly_leave_progmode
* ************************************************************************* */
static int butterfly_leave_progmode(bfly_privdata_t * p_priv)
{
(void)write(p_priv->fd, "L", 1);

return butterfly_expect_cr(p_priv);
} /* butterfly_leave_progmode */


/* *************************************************************************
* butterfly_get_signature
* ************************************************************************* */
static int butterfly_get_signature(bfly_privdata_t * p_priv,
uint8_t * p_signature)
{
int result;
uint8_t buffer[3];

(void)write(p_priv->fd, "s", 1);

result = butterfly_serial_read(p_priv->fd, buffer, sizeof(buffer),
SERIAL_TIMEOUT);

if (result == 3)
{
p_signature[0] = buffer[2];
p_signature[1] = buffer[1];
p_signature[2] = buffer[0];
return 0;
}

return -1;
} /* butterfly_get_signature */


/* *************************************************************************
* butterfly_get_buffersize
* ************************************************************************* */
static int butterfly_get_buffersize(bfly_privdata_t * p_priv,
uint16_t * p_buffersize)
{
int result;
uint8_t buffer[3];

(void)write(p_priv->fd, "b", 1);

result = butterfly_serial_read(p_priv->fd, buffer, sizeof(buffer),
SERIAL_TIMEOUT);
if (result == sizeof(buffer))
{
if (buffer[0] == 'Y')
{
*p_buffersize = (buffer[1] << 8) | buffer[2];
}
else
{
*p_buffersize = 0;
}
}

return (result != sizeof(buffer));
} /* butterfly_get_buffersize */


/* *************************************************************************
* butterfly_chiperase
* ************************************************************************* */
static int butterfly_chiperase(bfly_privdata_t * p_priv)
{
(void)write(p_priv->fd, "e", 1);

return butterfly_expect_cr(p_priv);
} /* butterfly_chiperase */


/* *************************************************************************
* butterfly_set_address
* ************************************************************************* */
static int butterfly_set_address(bfly_privdata_t * p_priv, uint16_t pos)
{
uint8_t buffer[1];
int result;

(void)write(p_priv->fd, "a", 1);

result = butterfly_serial_read(p_priv->fd, buffer, sizeof(buffer),
SERIAL_TIMEOUT);
if ((result == 1) &&
(buffer[0] == 'Y')
)
{
/* convert to word address */
pos >>= 1;

uint8_t cmd[3] = { 'A', pos >> 8, pos & 0xFF };
(void)write(p_priv->fd, cmd, sizeof(cmd));

result = butterfly_expect_cr(p_priv);
}

return result;
} /* butterfly_set_address */


/* *************************************************************************
* butterfly_read_data
* ************************************************************************* */
static int butterfly_read_data(bfly_privdata_t * p_priv,
uint8_t * p_data, uint16_t size,
uint8_t memtype)
{
int result;

uint8_t cmd[4] = { 'g', size >> 8, size & 0xFF, memtype };
(void)write(p_priv->fd, cmd, 4);

result = butterfly_serial_read(p_priv->fd, p_data, size,
SERIAL_TIMEOUT);
return (result != size);
} /* butterfly_read_data */


/* *************************************************************************
* butterfly_write_data
* ************************************************************************* */
static int butterfly_write_data(bfly_privdata_t * p_priv,
const uint8_t * p_data, uint16_t size,
uint8_t memtype)
{
uint8_t cmd[4] = { 'B', size >> 8, size & 0xFF, memtype };
(void)write(p_priv->fd, cmd, 4);

(void)write(p_priv->fd, p_data, size);

return butterfly_expect_cr(p_priv);
} /* butterfly_write_data */


/* *************************************************************************
* butterfly_close
* ************************************************************************* */
static int butterfly_close(struct multiboot * p_mboot)
{
bfly_privdata_t * p_priv = (bfly_privdata_t *)p_mboot->privdata;

if (p_priv->progmode_active)
{
butterfly_leave_progmode(p_priv);
}

butterfly_close_device(p_priv);

return 0;
} /* butterfly_close */


/* *************************************************************************
* butterfly_open
* ************************************************************************* */
static int butterfly_open(struct multiboot * p_mboot)
{
bfly_privdata_t * p_priv = (bfly_privdata_t *)p_mboot->privdata;

if (p_priv->p_device == NULL)
{
fprintf(stderr, "abort: no device given\n");
return -1;
}

if (butterfly_open_device(p_priv) < 0)
{
return -1;
}

if (butterfly_enter_progmode(p_priv) != 0)
{
fprintf(stderr, "failed to enter progmode\n");
butterfly_close_device(p_priv);
return -1;
}

p_priv->progmode_active = 1;

uint8_t signature[3];
if (butterfly_get_signature(p_priv, signature) != 0)
{
fprintf(stderr, "failed to get signature\n");
butterfly_close_device(p_priv);
return -1;
}

const avr_chipinfo_t * p_chipinfo;
p_chipinfo = chipinfo_get_by_signature(signature);
if (p_chipinfo == NULL)
{
fprintf(stderr, "failed to identify chip signature [0x%02x 0x%02x 0x%02x]\n",
signature[0], signature[1], signature[2]);
butterfly_close_device(p_priv);
return -1;
}

p_priv->flashsize = p_chipinfo->flashsize;
p_priv->eepromsize = p_chipinfo->eepromsize;

if (butterfly_get_buffersize(p_priv, &p_priv->buffersize) != 0)
{
fprintf(stderr, "failed to get buffersize\n");
butterfly_close_device(p_priv);
return -1;
}

if (p_priv->twi_address != 0x00)
{
printf("twi address : 0x%02x\n",
p_priv->twi_address);
}

printf("device : %-16s (sig: 0x%02x 0x%02x 0x%02x)\n",
p_chipinfo->name, p_chipinfo->sig[0],
p_chipinfo->sig[1], p_chipinfo->sig[2]);

printf("flash size : 0x%04x / %5d\n",
p_chipinfo->flashsize, p_chipinfo->flashsize);

printf("eeprom size : 0x%04x / %5d\n",
p_chipinfo->eepromsize, p_chipinfo->eepromsize);

if (p_priv->chip_erase)
{
if (butterfly_chiperase(p_priv) != 0)
{
fprintf(stderr, "failed to chip erase\n");
butterfly_close_device(p_priv);
return -1;
}

printf("chip erased : OK\n");
}

return 0;
} /* butterfly_open */


/* *************************************************************************
* butterfly_read
* ************************************************************************* */
static int butterfly_read(struct multiboot * p_mboot,
struct databuf * p_dbuf,
int memtype)
{
bfly_privdata_t * p_priv = (bfly_privdata_t *)p_mboot->privdata;
char * p_progress_msg = (memtype == 'F') ? "reading flash" : "reading eeprom";

uint16_t pos = 0;
uint16_t size = (memtype == 'F') ? p_priv->flashsize :
p_priv->eepromsize;

if (butterfly_set_address(p_priv, pos) < 0)
{
fprintf(stderr, "failed to set address\n");
return -1;
}

while (pos < size)
{
p_mboot->progress_cb(p_progress_msg, pos, size);

uint16_t len = MIN(p_priv->buffersize, size - pos);
if (butterfly_read_data(p_priv, p_dbuf->data + pos, len, memtype))
{
p_mboot->progress_cb(p_progress_msg, -1, -1);
return -1;
}

pos += len;
}

p_dbuf->length = pos;

p_mboot->progress_cb(p_progress_msg, pos, size);
return 0;
} /* butterfly_read */


/* *************************************************************************
* butterfly_write
* ************************************************************************* */
static int butterfly_write(struct multiboot * p_mboot,
struct databuf * p_dbuf,
int memtype)
{
bfly_privdata_t * p_priv = (bfly_privdata_t *)p_mboot->privdata;
char * p_progress_msg = (memtype == 'F') ? "writing flash" : "writing eeprom";

uint16_t pos = 0;

if (butterfly_set_address(p_priv, pos) < 0)
{
fprintf(stderr, "failed to set address\n");
return -1;
}

while (pos < p_dbuf->length)
{
p_mboot->progress_cb(p_progress_msg, pos, p_dbuf->length);

uint16_t len = MIN(p_priv->buffersize, p_dbuf->length - pos);
if (butterfly_write_data(p_priv, p_dbuf->data + pos, len, memtype))
{
p_mboot->progress_cb(p_progress_msg, -1, -1);
return -1;
}

pos += len;
}

p_mboot->progress_cb(p_progress_msg, pos, p_dbuf->length);
return 0;
} /* butterfly_write */


/* *************************************************************************
* butterfly_verify
* ************************************************************************* */
static int butterfly_verify(struct multiboot * p_mboot,
struct databuf * p_dbuf,
int memtype)
{
bfly_privdata_t * p_priv = (bfly_privdata_t *)p_mboot->privdata;
char * p_progress_msg = (memtype == 'F') ? "verifing flash" : "verifing eeprom";

uint16_t pos = 0;
uint8_t comp[256];

if (butterfly_set_address(p_priv, pos) < 0)
{
fprintf(stderr, "failed to set address\n");
return -1;
}

while (pos < p_dbuf->length)
{
p_mboot->progress_cb(p_progress_msg, pos, p_dbuf->length);

uint16_t len = MIN(p_priv->buffersize, p_dbuf->length - pos);
if (butterfly_read_data(p_priv, comp, len, memtype))
{
p_mboot->progress_cb(p_progress_msg, -1, -1);
return -1;
}

if (memcmp(comp, p_dbuf->data + pos, len) != 0x00)
{
p_mboot->progress_cb(p_progress_msg, -1, -1);
fprintf(stderr, "verify failed at pos 0x%04x!!\n", pos);
return -1;
}

pos += len;
}

p_dbuf->length = pos;

p_mboot->progress_cb(p_progress_msg, pos, p_dbuf->length);
return 0;
} /* butterfly_verify */


struct multiboot_ops butterfly_ops =
{
.exec_name = "butterfly_prog",
.alloc = butterfly_alloc,
.free = butterfly_free,
.get_memtype = butterfly_get_memtype,
.get_memsize = butterfly_get_memsize,

.open = butterfly_open,
.close = butterfly_close,
.read = butterfly_read,
.write = butterfly_write,
.verify = butterfly_verify,
};

+ 29
- 17
chipinfo_avr.c View File

@@ -27,35 +27,47 @@

#define ARRAY_SIZE(x) (sizeof(x) / sizeof(*x))

struct chipinfo
static avr_chipinfo_t chips[] =
{
uint8_t sig[3];
const char name[16];
};

static struct chipinfo chips[] =
{
{ { 0x1E, 0x93, 0x07 }, "AVR Mega 8" },
{ { 0x1E, 0x93, 0x0A }, "AVR Mega 88" },
{ { 0x1E, 0x94, 0x06 }, "AVR Mega 168" },
{ { 0x1E, 0x95, 0x02 }, "AVR Mega 32" },
{ { 0x1E, 0x93, 0x07 }, "ATmega8", 0x2000, 0x200 },
{ { 0x1E, 0x93, 0x0A }, "ATmega88", 0x2000, 0x200 },
{ { 0x1E, 0x94, 0x06 }, "ATmega168", 0x4000, 0x200 },
{ { 0x1E, 0x95, 0x02 }, "ATmega32", 0x8000, 0x400 },
{ { 0x1E, 0x95, 0x0F }, "ATmega328p", 0x8000, 0x400 },
};

/* *************************************************************************
* chipinfo_get_avr_name
* chipinfo_get_by_signature
* ************************************************************************* */
const char * chipinfo_get_avr_name(const uint8_t *sig)
const avr_chipinfo_t * chipinfo_get_by_signature(const uint8_t *sig)
{
unsigned int i;

for (i = 0; i < ARRAY_SIZE(chips); i++)
{
struct chipinfo *chip = &chips[i];
if (chip->sig[0] == sig[0] && chip->sig[1] == sig[1] && chip->sig[2] == sig[2])
avr_chipinfo_t *chip = &chips[i];

if ((chip->sig[0] == sig[0]) &&
(chip->sig[1] == sig[1]) &&
(chip->sig[2] == sig[2])
)
{
return chip->name;
return chip;
}
}

return "unknown";
return NULL;
} /* chipinfo_get_by_signature */


/* *************************************************************************
* chipinfo_get_avr_name
* ************************************************************************* */
const char * chipinfo_get_avr_name(const uint8_t *sig)
{
const avr_chipinfo_t * p_chipinfo;

p_chipinfo = chipinfo_get_by_signature(sig);

return (p_chipinfo != NULL) ? p_chipinfo->name : "unknown";
} /* chipinfo_get_avr_name */

+ 10
- 1
chipinfo_avr.h View File

@@ -3,6 +3,15 @@

#include <stdint.h>

const char * chipinfo_get_avr_name(const uint8_t *sig);
typedef struct avr_chipinfo_s
{
uint8_t sig[3];
const char name[16];
uint16_t flashsize;
uint16_t eepromsize;
} avr_chipinfo_t;

const avr_chipinfo_t * chipinfo_get_by_signature (const uint8_t *sig);
const char * chipinfo_get_avr_name (const uint8_t *sig);

#endif /* _CHIPINFO_H_ */

+ 1
- 0
multiboot.c View File

@@ -39,6 +39,7 @@ static struct multiboot_ops * prog_ops[] =
&mpm_ops,
&funk_ops,
&eprog_ops,
&butterfly_ops,
};

struct mboot_action


+ 1
- 0
multiboot.h View File

@@ -35,5 +35,6 @@ extern struct multiboot_ops twi_ops;
extern struct multiboot_ops mpm_ops;
extern struct multiboot_ops funk_ops;
extern struct multiboot_ops eprog_ops;
extern struct multiboot_ops butterfly_ops;

#endif /* _MULTIBOOT_H_ */

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