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2007-05-01: Colin O'Flynn <coflynn@newae.com> 

*Problem in verbose output of previous commit. I hoped to
   have all the verbose changes in a single commit, but that
   won't happen...
  *Main thing is fixed safemode to turn itself off when you can't
   read the fuses anyway. I don't know what I was thinking when
   I made it fail out of programmers that don't support fuse reading.


git-svn-id: svn://svn.savannah.nongnu.org/avrdude/trunk@733 81a1dc3b-b13d-400b-aceb-764788c761c2
This commit is contained in:
Colin O Flynn 2007-05-02 23:05:21 +00:00
parent 728326c479
commit 35380e1d70
3 changed files with 77 additions and 27 deletions
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6
avrdude/ChangeLog
View File

@ -1,3 +1,9 @@
2007-05-01 Colin O'Flynn <coflynn@newae.com>
* safemode.c: -Oops - bug in verbose output. Fixed.
-Fixed handling of cases where programmer cannot read fuses (AVR910)
* main.c: -Also fixing handling of cases where programmer cannot read fuses
This should close one or more bugs (18803, 19570)
2007-05-01 Colin O'Flynn <coflynn@newae.com>
* safemode.c: Added verbose output from safemode routines.

24
avrdude/main.c
View File

@ -856,18 +856,36 @@ int main(int argc, char * argv [])
/* If safemode is enabled, go ahead and read the current low, high,
and extended fuse bytes as needed */
if (safemode_readfuses(&safemode_lfuse, &safemode_hfuse,
&safemode_efuse, &safemode_fuse, pgm, p, verbose) != 0) {
rc = safemode_readfuses(&safemode_lfuse, &safemode_hfuse,
&safemode_efuse, &safemode_fuse, pgm, p, verbose);
if (rc != 0) {
//Check if the programmer just doesn't support reading
if (rc == -5)
{
if (verbose > 0)
{
fprintf(stderr, "%s: safemode: Fuse reading not support by programmer.\n"
" Safemode disabled.\n", progname);
}
safemode = 0;
}
else
{
fprintf(stderr, "%s: safemode: To protect your AVR the programming "
"will be aborted\n",
progname);
exitrc = 1;
goto main_exit;
}
}
else {
//Save the fuses as default
safemode_memfuses(1, &safemode_lfuse, &safemode_hfuse, &safemode_efuse, &safemode_fuse);
}
}

58
avrdude/safemode.c
View File

@ -2,7 +2,7 @@
* avrdude - A Downloader/Uploader for AVR device programmers
* avrdude is Copyright (C) 2000-2004 Brian S. Dean <bsd@bsdhome.com>
*
* This file: Copyright (C) 2005 Colin O'Flynn <coflynn@newae.com>
* This file: Copyright (C) 2005-2007 Colin O'Flynn <coflynn@newae.com>
*
* 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
@ -86,6 +86,7 @@ int safemode_readfuses (unsigned char * lfuse, unsigned char * hfuse,
unsigned char value;
unsigned char fusegood = 0;
unsigned char allowfuseread = 1;
unsigned char safemode_lfuse;
unsigned char safemode_hfuse;
unsigned char safemode_efuse;
@ -106,7 +107,7 @@ int safemode_readfuses (unsigned char * lfuse, unsigned char * hfuse,
fusegood = 0; /* By default fuse is a failure */
if(pgm->read_byte(pgm, p, m, 0, &safemode_fuse) != 0)
{
safemode_fuse = 1 + value; //failed - ensure they differ
allowfuseread = 0;
}
if (verbose > 2)
{
@ -114,7 +115,7 @@ int safemode_readfuses (unsigned char * lfuse, unsigned char * hfuse,
}
if(pgm->read_byte(pgm, p, m, 0, &value) != 0)
{
value = 1 + safemode_fuse; //failed - ensure they differ
allowfuseread = 0;
}
if (verbose > 2)
{
@ -123,7 +124,7 @@ int safemode_readfuses (unsigned char * lfuse, unsigned char * hfuse,
if (value == safemode_fuse) {
if (pgm->read_byte(pgm, p, m, 0, &value) != 0)
{
value = 1 + safemode_fuse;
allowfuseread = 0;
}
if (verbose > 2)
{
@ -136,6 +137,12 @@ int safemode_readfuses (unsigned char * lfuse, unsigned char * hfuse,
}
}
//Programmer does not allow fuse reading.... no point trying anymore
if (allowfuseread == 0)
{
return -5;
}
if (fusegood == 0) {
fprintf(stderr,
"%s: safemode: Verify error - unable to read fuse properly. "
@ -155,15 +162,15 @@ int safemode_readfuses (unsigned char * lfuse, unsigned char * hfuse,
fusegood = 0; /* By default fuse is a failure */
if (pgm->read_byte(pgm, p, m, 0, &safemode_lfuse) != 0)
{
safemode_lfuse = 1 + value;
allowfuseread = 0;
}
if (verbose > 2)
{
fprintf(stderr, "%s: safemode read 1, lfuse value: %x\n",progname, safemode_fuse);
fprintf(stderr, "%s: safemode read 1, lfuse value: %x\n",progname, safemode_lfuse);
}
if (pgm->read_byte(pgm, p, m, 0, &value) != 0)
{
value = safemode_lfuse + 1;
allowfuseread = 0;
}
if (verbose > 2)
{
@ -172,7 +179,7 @@ int safemode_readfuses (unsigned char * lfuse, unsigned char * hfuse,
if (value == safemode_lfuse) {
if (pgm->read_byte(pgm, p, m, 0, &value) != 0)
{
value = safemode_lfuse + 1;
allowfuseread = 0;
}
if (verbose > 2)
{
@ -184,6 +191,13 @@ int safemode_readfuses (unsigned char * lfuse, unsigned char * hfuse,
}
}
//Programmer does not allow fuse reading.... no point trying anymore
if (allowfuseread == 0)
{
return -5;
}
if (fusegood == 0) {
fprintf(stderr,
"%s: safemode: Verify error - unable to read lfuse properly. "
@ -202,15 +216,15 @@ int safemode_readfuses (unsigned char * lfuse, unsigned char * hfuse,
fusegood = 0; /* By default fuse is a failure */
if (pgm->read_byte(pgm, p, m, 0, &safemode_hfuse) != 0)
{
safemode_hfuse = value + 1;
allowfuseread = 0;
}
if (verbose > 2)
{
fprintf(stderr, "%s: safemode read 1, hfuse value: %x\n",progname, safemode_fuse);
fprintf(stderr, "%s: safemode read 1, hfuse value: %x\n",progname, safemode_hfuse);
}
if (pgm->read_byte(pgm, p, m, 0, &value) != 0)
{
value = safemode_hfuse + 1;
allowfuseread = 0;
}
if (verbose > 2)
{
@ -219,7 +233,7 @@ int safemode_readfuses (unsigned char * lfuse, unsigned char * hfuse,
if (value == safemode_hfuse) {
if (pgm->read_byte(pgm, p, m, 0, &value) != 0)
{
value = safemode_hfuse + 1;
allowfuseread = 0;
}
if (verbose > 2)
{
@ -231,6 +245,12 @@ int safemode_readfuses (unsigned char * lfuse, unsigned char * hfuse,
}
}
//Programmer does not allow fuse reading.... no point trying anymore
if (allowfuseread == 0)
{
return -5;
}
if (fusegood == 0) {
fprintf(stderr,
"%s: safemode: Verify error - unable to read hfuse properly. "
@ -249,15 +269,15 @@ int safemode_readfuses (unsigned char * lfuse, unsigned char * hfuse,
fusegood = 0; /* By default fuse is a failure */
if (pgm->read_byte(pgm, p, m, 0, &safemode_efuse) != 0)
{
safemode_efuse = value + 1;
allowfuseread = 0;
}
if (verbose > 2)
{
fprintf(stderr, "%s: safemode read 1, efuse value: %x\n",progname, safemode_fuse);
fprintf(stderr, "%s: safemode read 1, efuse value: %x\n",progname, safemode_efuse);
}
if (pgm->read_byte(pgm, p, m, 0, &value) != 0)
{
value = safemode_efuse + 1;
allowfuseread = 0;
}
if (verbose > 2)
{
@ -266,7 +286,7 @@ int safemode_readfuses (unsigned char * lfuse, unsigned char * hfuse,
if (value == safemode_efuse) {
if (pgm->read_byte(pgm, p, m, 0, &value) != 0)
{
value = safemode_efuse + 1;
allowfuseread = 0;
}
if (verbose > 2)
{
@ -278,6 +298,12 @@ int safemode_readfuses (unsigned char * lfuse, unsigned char * hfuse,
}
}
//Programmer does not allow fuse reading.... no point trying anymore
if (allowfuseread == 0)
{
return -5;
}
if (fusegood == 0) {
fprintf(stderr,
"%s: safemode: Verify error - unable to read efuse properly. "