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Remove the "safemode" feature.

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This feature has been designed with the sometimes quite flakey direct
(parallel or serial port attached) bitbang programming adapters in
mind that were quite common about two decades ago.

With parallel ports vanishing from modern PCs almost completely, and
the advent of various USB-attached low-cost programming devices,
this class of programmers disappeared almost completely.

Furthermore, the fuse combinations that were covered by the feature
are no longer around on all recent AVR devices, so for an ever
increasing number of devices, safemode already became meaningless and
was turned off anyway.

With the prospective version 7.x release, it's a good point in time to
introduce a major change like this one.
This commit is contained in:
Joerg Wunsch
2022-01-31 20:44:32 +01:00
parent e28e28d7c3
commit 8c6c6a14ec
13 changed files with 5 additions and 688 deletions
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24
src/avr.c
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@@ -791,30 +791,6 @@ int avr_write_byte_default(PROGRAMMER * pgm, AVRPART * p, AVRMEM * mem,
int avr_write_byte(PROGRAMMER * pgm, AVRPART * p, AVRMEM * mem,
unsigned long addr, unsigned char data)
{
unsigned char safemode_lfuse;
unsigned char safemode_hfuse;
unsigned char safemode_efuse;
unsigned char safemode_fuse;
/* If we write the fuses, then we need to tell safemode that they *should* change */
safemode_memfuses(0, &safemode_lfuse, &safemode_hfuse, &safemode_efuse, &safemode_fuse);
if (strcmp(mem->desc, "fuse")==0) {
safemode_fuse = data;
}
if (strcmp(mem->desc, "lfuse")==0) {
safemode_lfuse = data;
}
if (strcmp(mem->desc, "hfuse")==0) {
safemode_hfuse = data;
}
if (strcmp(mem->desc, "efuse")==0) {
safemode_efuse = data;
}
safemode_memfuses(1, &safemode_lfuse, &safemode_hfuse, &safemode_efuse, &safemode_fuse);
return pgm->write_byte(pgm, p, mem, addr, data);
}