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stk500v2.c
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stk500v2.c
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/*
* avrdude - A Downloader/Uploader for AVR device programmers
* Copyright (C) 2005 Erik Walthinsen
* Copyright (C) 2002-2004 Brian S. Dean <bsd@bsdhome.com>
* Copyright (C) 2006 David Moore
* Copyright (C) 2006,2007,2010 Joerg Wunsch <j@uriah.heep.sax.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; 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.
*
* 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
*/
/* $Id$ */
/* Based on Id: stk500.c,v 1.46 2004/12/22 01:52:45 bdean Exp */
/*
* avrdude interface for Atmel STK500V2 programmer
*
* As the AVRISP mkII device is basically an STK500v2 one that can
* only talk across USB, and that misses any kind of framing protocol,
* this is handled here as well.
*
* Note: most commands use the "universal command" feature of the
* programmer in a "pass through" mode, exceptions are "program
* enable", "paged read", and "paged write".
*
*/
#include "ac_cfg.h"
#include <math.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <errno.h>
#include <limits.h>
#include <unistd.h>
#include <sys/time.h>
#include <time.h>
#include "avrdude.h"
#include "avr.h"
#include "pgm.h"
#include "stk500_private.h" // temp until all code converted
#include "stk500v2_private.h"
#include "serial.h"
#include "usbdevs.h"
/*
* We need to import enough from the JTAG ICE mkII definitions to be
* able to talk to the ICE, query some parameters etc. The macro
* JTAGMKII_PRIVATE_EXPORTED limits the amount of definitions that
* jtagmkII_private.h will export, so to avoid conflicts with those
* names that are identical to the STK500v2 ones.
*/
#include "jtagmkII.h" // public interfaces from jtagmkII.c
#define JTAGMKII_PRIVATE_EXPORTED
#include "jtagmkII_private.h"
#define STK500V2_XTAL 7372800U
#if 0
#define DEBUG(...) fprintf(stderr, __VA_ARGS__)
#else
#define DEBUG(...)
#endif
#if 0
#define DEBUGRECV(...) fprintf(stderr, __VA_ARGS__)
#else
#define DEBUGRECV(...)
#endif
enum hvmode
{
PPMODE, HVSPMODE
};
/*
* Private data for this programmer.
*/
struct pdata
{
/*
* See stk500pp_read_byte() for an explanation of the flash and
* EEPROM page caches.
*/
unsigned char *flash_pagecache;
unsigned long flash_pageaddr;
unsigned int flash_pagesize;
unsigned char *eeprom_pagecache;
unsigned long eeprom_pageaddr;
unsigned int eeprom_pagesize;
unsigned char command_sequence;
enum
{
PGMTYPE_UNKNOWN,
PGMTYPE_STK500,
PGMTYPE_AVRISP,
PGMTYPE_AVRISP_MKII,
PGMTYPE_JTAGICE_MKII,
PGMTYPE_STK600,
}
pgmtype;
AVRPART *lastpart;
/*
* Chained pdata for the JTAG ICE mkII backend. This is used when
* calling the backend functions for ISP/HVSP/PP programming
* functionality of the JTAG ICE mkII and AVR Dragon.
*/
void *chained_pdata;
};
#define PDATA(pgm) ((struct pdata *)(pgm->cookie))
/*
* Data structure for displaying STK600 routing and socket cards.
*/
struct carddata
{
int id;
const char *name;
};
static const char *pgmname[] =
{
"unknown",
"STK500",
"AVRISP",
"AVRISP mkII",
"JTAG ICE mkII",
"STK600",
};
struct jtagispentry
{
unsigned char cmd;
unsigned short size;
#define SZ_READ_FLASH_EE USHRT_MAX
#define SZ_SPI_MULTI (USHRT_MAX - 1)
};
static const struct jtagispentry jtagispcmds[] = {
/* generic */
{ CMD_SET_PARAMETER, 2 },
{ CMD_GET_PARAMETER, 3 },
{ CMD_OSCCAL, 2 },
{ CMD_LOAD_ADDRESS, 2 },
/* ISP mode */
{ CMD_ENTER_PROGMODE_ISP, 2 },
{ CMD_LEAVE_PROGMODE_ISP, 2 },
{ CMD_CHIP_ERASE_ISP, 2 },
{ CMD_PROGRAM_FLASH_ISP, 2 },
{ CMD_READ_FLASH_ISP, SZ_READ_FLASH_EE },
{ CMD_PROGRAM_EEPROM_ISP, 2 },
{ CMD_READ_EEPROM_ISP, SZ_READ_FLASH_EE },
{ CMD_PROGRAM_FUSE_ISP, 3 },
{ CMD_READ_FUSE_ISP, 4 },
{ CMD_PROGRAM_LOCK_ISP, 3 },
{ CMD_READ_LOCK_ISP, 4 },
{ CMD_READ_SIGNATURE_ISP, 4 },
{ CMD_READ_OSCCAL_ISP, 4 },
{ CMD_SPI_MULTI, SZ_SPI_MULTI },
/* all HV modes */
{ CMD_SET_CONTROL_STACK, 2 },
/* HVSP mode */
{ CMD_ENTER_PROGMODE_HVSP, 2 },
{ CMD_LEAVE_PROGMODE_HVSP, 2 },
{ CMD_CHIP_ERASE_HVSP, 2 },
{ CMD_PROGRAM_FLASH_HVSP, 2 },
{ CMD_READ_FLASH_HVSP, SZ_READ_FLASH_EE },
{ CMD_PROGRAM_EEPROM_HVSP, 2 },
{ CMD_READ_EEPROM_HVSP, SZ_READ_FLASH_EE },
{ CMD_PROGRAM_FUSE_HVSP, 2 },
{ CMD_READ_FUSE_HVSP, 3 },
{ CMD_PROGRAM_LOCK_HVSP, 2 },
{ CMD_READ_LOCK_HVSP, 3 },
{ CMD_READ_SIGNATURE_HVSP, 3 },
{ CMD_READ_OSCCAL_HVSP, 3 },
/* PP mode */
{ CMD_ENTER_PROGMODE_PP, 2 },
{ CMD_LEAVE_PROGMODE_PP, 2 },
{ CMD_CHIP_ERASE_PP, 2 },
{ CMD_PROGRAM_FLASH_PP, 2 },
{ CMD_READ_FLASH_PP, SZ_READ_FLASH_EE },
{ CMD_PROGRAM_EEPROM_PP, 2 },
{ CMD_READ_EEPROM_PP, SZ_READ_FLASH_EE },
{ CMD_PROGRAM_FUSE_PP, 2 },
{ CMD_READ_FUSE_PP, 3 },
{ CMD_PROGRAM_LOCK_PP, 2 },
{ CMD_READ_LOCK_PP, 3 },
{ CMD_READ_SIGNATURE_PP, 3 },
{ CMD_READ_OSCCAL_PP, 3 },
};
/*
* From XML file:
<REVISION>
<RC_ID_MAJOR>0</RC_ID_MAJOR>
<RC_ID_MINOR>56</RC_ID_MINOR>
<EC_ID_MAJOR>0</EC_ID_MAJOR>
<EC_ID_MINOR>1</EC_ID_MINOR>
</REVISION>
*/
/*
* These two tables can be semi-automatically updated from
* targetboards.xml using tools/get-stk600-cards.xsl.
*/
static const struct carddata routing_cards[] =
{
{ 0x01, "STK600-RC020T-1" },
{ 0x03, "STK600-RC028T-3" },
{ 0x05, "STK600-RC040M-5" },
{ 0x08, "STK600-RC020T-8" },
{ 0x0A, "STK600-RC040M-4" },
{ 0x0C, "STK600-RC008T-2" },
{ 0x0D, "STK600-RC028M-6" },
{ 0x10, "STK600-RC064M-10" },
{ 0x11, "STK600-RC100M-11" },
{ 0x13, "STK600-RC100X-13" },
{ 0x15, "STK600-RC044X-15" },
{ 0x18, "STK600-RC100M-18" },
{ 0x19, "STK600-RCPWM-19" },
{ 0x1A, "STK600-RC064X-14" },
{ 0x1B, "STK600-RC032U-20" },
{ 0x1C, "STK600-RC014T-12" },
{ 0x1E, "STK600-RC064U-17" },
{ 0x1F, "STK600-RCuC3B0-21" },
{ 0x20, "STK600-RCPWM-22" },
{ 0x21, "STK600-RC020T-23" },
{ 0x22, "STK600-RC044M-24" },
{ 0x23, "STK600-RC044U-25" },
{ 0x24, "STK600-RCPWM-26" },
{ 0x25, "STK600-RCuC3B48-27" },
{ 0x27, "STK600-RC032M-29" },
{ 0x28, "STK600-RC044M-30" },
{ 0x29, "STK600-RC044M-31" },
{ 0x2A, "STK600-RC014T-42" },
{ 0x2B, "STK600-RC020T-43" },
{ 0x30, "STK600-RCUC3A144-32" },
{ 0x34, "STK600-RCUC3L0-34" },
{ 0x38, "STK600-RCUC3C0-36" },
{ 0x3B, "STK600-RCUC3C0-37" },
{ 0x3E, "STK600-RCUC3A144-33" },
{ 0x46, "STK600-RCuC3A100-28" },
{ 0x55, "STK600-RC064M-9" },
{ 0x88, "STK600-RCUC3C1-38" },
{ 0x8B, "STK600-RCUC3C1-39" },
{ 0xA0, "STK600-RC008T-7" },
{ 0xB8, "STK600-RCUC3C2-40" },
{ 0xBB, "STK600-RCUC3C2-41" },
};
static const struct carddata socket_cards[] =
{
{ 0x01, "STK600-TQFP48" },
{ 0x02, "STK600-TQFP32" },
{ 0x03, "STK600-TQFP100" },
{ 0x04, "STK600-SOIC" },
{ 0x06, "STK600-TQFP144" },
{ 0x09, "STK600-TinyX3U" },
{ 0x0C, "STK600-TSSOP44" },
{ 0x0D, "STK600-TQFP44" },
{ 0x0E, "STK600-TQFP64-2" },
{ 0x0F, "STK600-ATMEGA2560" },
{ 0x15, "STK600-MLF64" },
{ 0x16, "STK600-ATXMEGAT0" },
{ 0x18, "QT600-ATMEGA324-QM64" },
{ 0x19, "STK600-ATMEGA128RFA1" },
{ 0x1A, "QT600-ATTINY88-QT8" },
{ 0x1B, "QT600-ATXMEGA128A1-QT16" },
{ 0x1C, "QT600-AT32UC3L-QM64" },
{ 0x1D, "STK600-HVE2" },
{ 0x1E, "STK600-ATTINY10" },
{ 0x55, "STK600-TQFP64" },
{ 0x69, "STK600-uC3-144" },
{ 0xF0, "STK600-ATXMEGA1281A1" },
{ 0xF1, "STK600-DIP" },
};
static int stk500v2_getparm(PROGRAMMER * pgm, unsigned char parm, unsigned char * value);
static int stk500v2_setparm(PROGRAMMER * pgm, unsigned char parm, unsigned char value);
static int stk500v2_getparm2(PROGRAMMER * pgm, unsigned char parm, unsigned int * value);
static int stk500v2_setparm2(PROGRAMMER * pgm, unsigned char parm, unsigned int value);
static int stk500v2_setparm_real(PROGRAMMER * pgm, unsigned char parm, unsigned char value);
static void stk500v2_print_parms1(PROGRAMMER * pgm, const char * p);
static int stk500v2_is_page_empty(unsigned int address, int page_size,
const unsigned char *buf);
static unsigned int stk500v2_mode_for_pagesize(unsigned int pagesize);
static int stk500v2_set_sck_period_mk2(PROGRAMMER * pgm, double v);
static int stk600_set_sck_period(PROGRAMMER * pgm, double v);
static void stk600_setup_xprog(PROGRAMMER * pgm);
static void stk600_setup_isp(PROGRAMMER * pgm);
static int stk600_xprog_program_enable(PROGRAMMER * pgm, AVRPART * p);
static void stk500v2_setup(PROGRAMMER * pgm)
{
if ((pgm->cookie = malloc(sizeof(struct pdata))) == 0) {
fprintf(stderr,
"%s: stk500v2_setup(): Out of memory allocating private data\n",
progname);
exit(1);
}
memset(pgm->cookie, 0, sizeof(struct pdata));
PDATA(pgm)->command_sequence = 1;
}
static void stk500v2_jtagmkII_setup(PROGRAMMER * pgm)
{
void *mycookie, *theircookie;
if ((pgm->cookie = malloc(sizeof(struct pdata))) == 0) {
fprintf(stderr,
"%s: stk500v2_setup(): Out of memory allocating private data\n",
progname);
exit(1);
}
memset(pgm->cookie, 0, sizeof(struct pdata));
PDATA(pgm)->command_sequence = 1;
/*
* Now, have the JTAG ICE mkII backend allocate its own private
* data. Store our own cookie in a safe place for the time being.
*/
mycookie = pgm->cookie;
jtagmkII_setup(pgm);
theircookie = pgm->cookie;
pgm->cookie = mycookie;
PDATA(pgm)->chained_pdata = theircookie;
}
static void stk500v2_teardown(PROGRAMMER * pgm)
{
free(pgm->cookie);
}
static void stk500v2_jtagmkII_teardown(PROGRAMMER * pgm)
{
void *mycookie;
mycookie = pgm->cookie;
pgm->cookie = PDATA(pgm)->chained_pdata;
jtagmkII_teardown(pgm);
free(mycookie);
}
static unsigned short
b2_to_u16(unsigned char *b)
{
unsigned short l;
l = b[0];
l += (unsigned)b[1] << 8;
return l;
}
static int stk500v2_send_mk2(PROGRAMMER * pgm, unsigned char * data, size_t len)
{
if (serial_send(&pgm->fd, data, len) != 0) {
fprintf(stderr,"%s: stk500_send_mk2(): failed to send command to serial port\n",progname);
exit(1);
}
return 0;
}
static unsigned short get_jtagisp_return_size(unsigned char cmd)
{
int i;
for (i = 0; i < sizeof jtagispcmds / sizeof jtagispcmds[0]; i++)
if (jtagispcmds[i].cmd == cmd)
return jtagispcmds[i].size;
return 0;
}
/*
* Send the data as a JTAG ICE mkII encapsulated ISP packet.
* Unlike what AVR067 says, the packet gets a length of our
* response buffer prepended, and replies with RSP_SPI_DATA
* if successful.
*/
static int stk500v2_jtagmkII_send(PROGRAMMER * pgm, unsigned char * data, size_t len)
{
unsigned char *cmdbuf;
int rv;
unsigned short sz;
void *mycookie;
sz = get_jtagisp_return_size(data[0]);
if (sz == 0) {
fprintf(stderr, "%s: unsupported encapsulated ISP command: %#x\n",
progname, data[0]);
return -1;
}
if (sz == SZ_READ_FLASH_EE) {
/*
* For CMND_READ_FLASH_ISP and CMND_READ_EEPROM_ISP, extract the
* size of the return data from the request. Note that the
* request itself has the size in big endian format, while we are
* supposed to deliver it in little endian.
*/
sz = 3 + (data[1] << 8) + data[2];
} else if (sz == SZ_SPI_MULTI) {
/*
* CMND_SPI_MULTI has the Rx size encoded in its 3rd byte.
*/
sz = 3 + data[2];
}
if ((cmdbuf = malloc(len + 3)) == NULL) {
fprintf(stderr, "%s: out of memory for command packet\n",
progname);
exit(1);
}
mycookie = pgm->cookie;
pgm->cookie = PDATA(pgm)->chained_pdata;
cmdbuf[0] = CMND_ISP_PACKET;
cmdbuf[1] = sz & 0xff;
cmdbuf[2] = (sz >> 8) & 0xff;
memcpy(cmdbuf + 3, data, len);
rv = jtagmkII_send(pgm, cmdbuf, len + 3);
free(cmdbuf);
pgm->cookie = mycookie;
return rv;
}
static int stk500v2_send(PROGRAMMER * pgm, unsigned char * data, size_t len)
{
unsigned char buf[275 + 6]; // max MESSAGE_BODY of 275 bytes, 6 bytes overhead
int i;
if (PDATA(pgm)->pgmtype == PGMTYPE_AVRISP_MKII ||
PDATA(pgm)->pgmtype == PGMTYPE_STK600)
return stk500v2_send_mk2(pgm, data, len);
else if (PDATA(pgm)->pgmtype == PGMTYPE_JTAGICE_MKII)
return stk500v2_jtagmkII_send(pgm, data, len);
buf[0] = MESSAGE_START;
buf[1] = PDATA(pgm)->command_sequence;
buf[2] = len / 256;
buf[3] = len % 256;
buf[4] = TOKEN;
memcpy(buf+5, data, len);
// calculate the XOR checksum
buf[5+len] = 0;
for (i=0;i<5+len;i++)
buf[5+len] ^= buf[i];
DEBUG("STK500V2: stk500v2_send(");
for (i=0;i<len+6;i++) DEBUG("0x%02x ",buf[i]);
DEBUG(", %d)\n",len+6);
if (serial_send(&pgm->fd, buf, len+6) != 0) {
fprintf(stderr,"%s: stk500_send(): failed to send command to serial port\n",progname);
exit(1);
}
return 0;
}
static int stk500v2_drain(PROGRAMMER * pgm, int display)
{
return serial_drain(&pgm->fd, display);
}
static int stk500v2_recv_mk2(PROGRAMMER * pgm, unsigned char msg[],
size_t maxsize)
{
int rv;
rv = serial_recv(&pgm->fd, msg, maxsize);
if (rv < 0) {
fprintf(stderr, "%s: stk500v2_recv_mk2: error in USB receive\n", progname);
return -1;
}
return rv;
}
static int stk500v2_jtagmkII_recv(PROGRAMMER * pgm, unsigned char msg[],
size_t maxsize)
{
int rv;
unsigned char *jtagmsg;
void *mycookie;
mycookie = pgm->cookie;
pgm->cookie = PDATA(pgm)->chained_pdata;
rv = jtagmkII_recv(pgm, &jtagmsg);
pgm->cookie = mycookie;
if (rv <= 0) {
fprintf(stderr, "%s: stk500v2_jtagmkII_recv(): error in jtagmkII_recv()\n",
progname);
return -1;
}
if (rv - 1 > maxsize) {
fprintf(stderr,
"%s: stk500v2_jtagmkII_recv(): got %u bytes, have only room for %u bytes\n",
progname, (unsigned)rv - 1, (unsigned)maxsize);
rv = maxsize;
}
switch (jtagmsg[0]) {
case RSP_SPI_DATA:
break;
case RSP_FAILED:
fprintf(stderr, "%s: stk500v2_jtagmkII_recv(): failed\n",
progname);
return -1;
case RSP_ILLEGAL_MCU_STATE:
fprintf(stderr, "%s: stk500v2_jtagmkII_recv(): illegal MCU state\n",
progname);
return -1;
default:
fprintf(stderr, "%s: stk500v2_jtagmkII_recv(): unknown status %d\n",
progname, jtagmsg[0]);
return -1;
}
memcpy(msg, jtagmsg + 1, rv - 1);
return rv;
}
static int stk500v2_recv(PROGRAMMER * pgm, unsigned char msg[], size_t maxsize) {
enum states { sINIT, sSTART, sSEQNUM, sSIZE1, sSIZE2, sTOKEN, sDATA, sCSUM, sDONE } state = sSTART;
unsigned int msglen = 0;
unsigned int curlen = 0;
int timeout = 0;
unsigned char c, checksum = 0;
long timeoutval = 5; // seconds
struct timeval tv;
double tstart, tnow;
if (PDATA(pgm)->pgmtype == PGMTYPE_AVRISP_MKII ||
PDATA(pgm)->pgmtype == PGMTYPE_STK600)
return stk500v2_recv_mk2(pgm, msg, maxsize);
else if (PDATA(pgm)->pgmtype == PGMTYPE_JTAGICE_MKII)
return stk500v2_jtagmkII_recv(pgm, msg, maxsize);
DEBUG("STK500V2: stk500v2_recv(): ");
gettimeofday(&tv, NULL);
tstart = tv.tv_sec;
while ( (state != sDONE ) && (!timeout) ) {
if (serial_recv(&pgm->fd, &c, 1) < 0)
goto timedout;
DEBUG("0x%02x ",c);
checksum ^= c;
switch (state) {
case sSTART:
DEBUGRECV("hoping for start token...");
if (c == MESSAGE_START) {
DEBUGRECV("got it\n");
checksum = MESSAGE_START;
state = sSEQNUM;
} else
DEBUGRECV("sorry\n");
break;
case sSEQNUM:
DEBUGRECV("hoping for sequence...\n");
if (c == PDATA(pgm)->command_sequence) {
DEBUGRECV("got it, incrementing\n");
state = sSIZE1;
PDATA(pgm)->command_sequence++;
} else {
DEBUGRECV("sorry\n");
state = sSTART;
}
break;
case sSIZE1:
DEBUGRECV("hoping for size LSB\n");
msglen = (unsigned)c * 256;
state = sSIZE2;
break;
case sSIZE2:
DEBUGRECV("hoping for size MSB...");
msglen += (unsigned)c;
DEBUG(" msg is %u bytes\n",msglen);
state = sTOKEN;
break;
case sTOKEN:
if (c == TOKEN) state = sDATA;
else state = sSTART;
break;
case sDATA:
if (curlen < maxsize) {
msg[curlen] = c;
} else {
fprintf(stderr, "%s: stk500v2_recv(): buffer too small, received %d byte into %u byte buffer\n",
progname,curlen,(unsigned int)maxsize);
return -2;
}
if ((curlen == 0) && (msg[0] == ANSWER_CKSUM_ERROR)) {
fprintf(stderr, "%s: stk500v2_recv(): previous packet sent with wrong checksum\n",
progname);
return -3;
}
curlen++;
if (curlen == msglen) state = sCSUM;
break;
case sCSUM:
if (checksum == 0) {
state = sDONE;
} else {
state = sSTART;
fprintf(stderr, "%s: stk500v2_recv(): checksum error\n",
progname);
return -4;
}
break;
default:
fprintf(stderr, "%s: stk500v2_recv(): unknown state\n",
progname);
return -5;
} /* switch */
gettimeofday(&tv, NULL);
tnow = tv.tv_sec;
if (tnow-tstart > timeoutval) { // wuff - signed/unsigned/overflow
timedout:
fprintf(stderr, "%s: stk500_2_ReceiveMessage(): timeout\n",
progname);
return -1;
}
} /* while */
DEBUG("\n");
return (int)(msglen+6);
}
static int stk500v2_getsync(PROGRAMMER * pgm) {
int tries = 0;
unsigned char buf[1], resp[32];
int status;
DEBUG("STK500V2: stk500v2_getsync()\n");
if (PDATA(pgm)->pgmtype == PGMTYPE_JTAGICE_MKII)
return 0;
retry:
tries++;
// send the sync command and see if we can get there
buf[0] = CMD_SIGN_ON;
stk500v2_send(pgm, buf, 1);
// try to get the response back and see where we got
status = stk500v2_recv(pgm, resp, sizeof(resp));
// if we got bytes returned, check to see what came back
if (status > 0) {
if ((resp[0] == CMD_SIGN_ON) && (resp[1] == STATUS_CMD_OK) &&
(status > 3)) {
// success!
unsigned int siglen = resp[2];
if (siglen >= strlen("STK500_2") &&
memcmp(resp + 3, "STK500_2", strlen("STK500_2")) == 0) {
PDATA(pgm)->pgmtype = PGMTYPE_STK500;
} else if (siglen >= strlen("AVRISP_2") &&
memcmp(resp + 3, "AVRISP_2", strlen("AVRISP_2")) == 0) {
PDATA(pgm)->pgmtype = PGMTYPE_AVRISP;
} else if (siglen >= strlen("AVRISP_MK2") &&
memcmp(resp + 3, "AVRISP_MK2", strlen("AVRISP_MK2")) == 0) {
PDATA(pgm)->pgmtype = PGMTYPE_AVRISP_MKII;
} else if (siglen >= strlen("STK600") &&
memcmp(resp + 3, "STK600", strlen("STK600")) == 0) {
PDATA(pgm)->pgmtype = PGMTYPE_STK600;
} else {
resp[siglen + 3] = 0;
if (verbose)
fprintf(stderr,
"%s: stk500v2_getsync(): got response from unknown "
"programmer %s, assuming STK500\n",
progname, resp + 3);
PDATA(pgm)->pgmtype = PGMTYPE_STK500;
}
if (verbose >= 3)
fprintf(stderr,
"%s: stk500v2_getsync(): found %s programmer\n",
progname, pgmname[PDATA(pgm)->pgmtype]);
return 0;
} else {
if (tries > 33) {
fprintf(stderr,
"%s: stk500v2_getsync(): can't communicate with device: resp=0x%02x\n",
progname, resp[0]);
return -6;
} else
goto retry;
}
// or if we got a timeout
} else if (status == -1) {
if (tries > 33) {
fprintf(stderr,"%s: stk500v2_getsync(): timeout communicating with programmer\n",
progname);
return -1;
} else
goto retry;
// or any other error
} else {
if (tries > 33) {
fprintf(stderr,"%s: stk500v2_getsync(): error communicating with programmer: (%d)\n",
progname,status);
} else
goto retry;
}
return 0;
}
static int stk500v2_command(PROGRAMMER * pgm, unsigned char * buf,
size_t len, size_t maxlen) {
int i;
int tries = 0;
int status;
DEBUG("STK500V2: stk500v2_command(");
for (i=0;i<len;i++) DEBUG("0x%02hhx ",buf[i]);
DEBUG(", %d)\n",len);
retry:
tries++;
// send the command to the programmer
stk500v2_send(pgm,buf,len);
// attempt to read the status back
status = stk500v2_recv(pgm,buf,maxlen);
// if we got a successful readback, return
if (status > 0) {
DEBUG(" = %d\n",status);
if (status < 2) {
fprintf(stderr, "%s: stk500v2_command(): short reply\n", progname);
return -1;
}
if (buf[0] == CMD_XPROG_SETMODE || buf[0] == CMD_XPROG) {
/*
* Decode XPROG wrapper errors.
*/
const char *msg;
int i;
/*
* For CMD_XPROG_SETMODE, the status is returned in buf[1].
* For CMD_XPROG, buf[1] contains the XPRG_CMD_* command, and
* buf[2] contains the status.
*/
i = buf[0] == CMD_XPROG_SETMODE? 1: 2;
if (buf[i] != XPRG_ERR_OK) {
switch (buf[i]) {
case XPRG_ERR_FAILED: msg = "Failed"; break;
case XPRG_ERR_COLLISION: msg = "Collision"; break;
case XPRG_ERR_TIMEOUT: msg = "Timeout"; break;
default: msg = "Unknown"; break;
}
fprintf(stderr, "%s: stk500v2_command(): error in %s: %s\n",
progname,
(buf[0] == CMD_XPROG_SETMODE? "CMD_XPROG_SETMODE": "CMD_XPROG"),
msg);
return -1;
}
return 0;
} else {
/*
* Decode STK500v2 errors.
*/
if (buf[1] >= STATUS_CMD_TOUT && buf[1] < 0xa0) {
const char *msg;
char msgbuf[30];
switch (buf[1]) {
case STATUS_CMD_TOUT:
msg = "Command timed out";
break;
case STATUS_RDY_BSY_TOUT:
msg = "Sampling of the RDY/nBSY pin timed out";
break;
case STATUS_SET_PARAM_MISSING:
msg = "The `Set Device Parameters' have not been "
"executed in advance of this command";
default:
sprintf(msgbuf, "unknown, code 0x%02x", buf[1]);
msg = msgbuf;
break;
}
if (quell_progress < 2)
fprintf(stderr, "%s: stk500v2_command(): warning: %s\n",
progname, msg);
buf[1] = STATUS_CMD_OK; /* pretend success */
}
if (buf[1] == STATUS_CMD_OK)
return status;
if (buf[1] == STATUS_CMD_FAILED)
fprintf(stderr, "%s: stk500v2_command(): command failed\n", progname);
else
fprintf(stderr, "%s: stk500v2_command(): unknown status 0x%02x\n",
progname, buf[1]);
return -1;
}
}
// otherwise try to sync up again
status = stk500v2_getsync(pgm);
if (status != 0) {
if (tries > 33) {
fprintf(stderr,"%s: stk500v2_command(): failed miserably to execute command 0x%02x\n",
progname,buf[0]);
return -1;
} else
goto retry;
}
DEBUG(" = 0\n");
return 0;
}
static int stk500v2_cmd(PROGRAMMER * pgm, unsigned char cmd[4],
unsigned char res[4])
{
unsigned char buf[8];
int result;
DEBUG("STK500V2: stk500v2_cmd(%02x,%02x,%02x,%02x)\n",cmd[0],cmd[1],cmd[2],cmd[3]);
buf[0] = CMD_SPI_MULTI;
buf[1] = 4;
buf[2] = 4;
buf[3] = 0;
buf[4] = cmd[0];
buf[5] = cmd[1];
buf[6] = cmd[2];
buf[7] = cmd[3];
result = stk500v2_command(pgm, buf, 8, sizeof(buf));
if (result < 0) {
fprintf(stderr, "%s: stk500v2_cmd(): failed to send command\n",
progname);
return -1;
} else if (result < 6) {
fprintf(stderr, "%s: stk500v2_cmd(): short reply, len = %d\n",
progname, result);
return -1;
}
res[0] = buf[2];
res[1] = buf[3];
res[2] = buf[4];
res[3] = buf[5];
return 0;
}
/*
* issue the 'chip erase' command to the AVR device
*/
static int stk500v2_chip_erase(PROGRAMMER * pgm, AVRPART * p)
{
int result;
unsigned char buf[16];
if (p->op[AVR_OP_CHIP_ERASE] == NULL) {
fprintf(stderr, "%s: stk500v2_chip_erase: chip erase instruction not defined for part \"%s\"\n",
progname, p->desc);
return -1;
}
pgm->pgm_led(pgm, ON);
buf[0] = CMD_CHIP_ERASE_ISP;
buf[1] = p->chip_erase_delay / 1000;
buf[2] = 0; // use delay (?)
avr_set_bits(p->op[AVR_OP_CHIP_ERASE], buf+3);
result = stk500v2_command(pgm, buf, 7, sizeof(buf));
usleep(p->chip_erase_delay);
pgm->initialize(pgm, p);
pgm->pgm_led(pgm, OFF);
return result >= 0? 0: -1;
}
/*
* issue the 'chip erase' command to the AVR device, generic HV mode
*/
static int stk500hv_chip_erase(PROGRAMMER * pgm, AVRPART * p, enum hvmode mode)
{
int result;
unsigned char buf[3];
pgm->pgm_led(pgm, ON);
if (mode == PPMODE) {
buf[0] = CMD_CHIP_ERASE_PP;
buf[1] = p->chiperasepulsewidth;
buf[2] = p->chiperasepolltimeout;
} else {
buf[0] = CMD_CHIP_ERASE_HVSP;
buf[1] = p->chiperasepolltimeout;
buf[2] = p->chiperasetime;
}
result = stk500v2_command(pgm, buf, 3, sizeof(buf));
usleep(p->chip_erase_delay);
pgm->initialize(pgm, p);
pgm->pgm_led(pgm, OFF);
return result >= 0? 0: -1;
}
/*
* issue the 'chip erase' command to the AVR device, parallel mode
*/
static int stk500pp_chip_erase(PROGRAMMER * pgm, AVRPART * p)
{
return stk500hv_chip_erase(pgm, p, PPMODE);
}
/*
* issue the 'chip erase' command to the AVR device, HVSP mode
*/
static int stk500hvsp_chip_erase(PROGRAMMER * pgm, AVRPART * p)
{
return stk500hv_chip_erase(pgm, p, HVSPMODE);
}
static struct
{
unsigned int state;
const char *description;
} connection_status[] =
{
{ STATUS_CONN_FAIL_MOSI, "MOSI fail" },
{ STATUS_CONN_FAIL_RST, "RST fail" },
{ STATUS_CONN_FAIL_SCK, "SCK fail" },
{ STATUS_TGT_NOT_DETECTED, "Target not detected" },
{ STATUS_TGT_REVERSE_INSERTED, "Target reverse inserted" },
{ STATUS_CONN_FAIL_MOSI | STATUS_CONN_FAIL_RST,
"MOSI and RST fail" },
{ STATUS_CONN_FAIL_MOSI | STATUS_CONN_FAIL_RST | STATUS_CONN_FAIL_SCK,
"MOSI, RST, and SCK fail" },
{ STATUS_CONN_FAIL_RST | STATUS_CONN_FAIL_SCK,
"RST and SCK fail" },
{ STATUS_CONN_FAIL_MOSI | STATUS_CONN_FAIL_SCK,
"MOSI and SCK fail" },
};
/*
* issue the 'program enable' command to the AVR device
*/
static int stk500v2_program_enable(PROGRAMMER * pgm, AVRPART * p)
{
unsigned char buf[16];
size_t i;
const char *msg;
int rv;
PDATA(pgm)->lastpart = p;
if (p->op[AVR_OP_PGM_ENABLE] == NULL) {
fprintf(stderr, "%s: stk500v2_program_enable(): program enable instruction not defined for part \"%s\"\n",
progname, p->desc);