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avrdude
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Implement enough state in cmd_dump so that if it is called with no 

arguments, it successively dumps the next chunk of data of the same
previously specified length.


git-svn-id: svn://svn.savannah.nongnu.org/avrdude/trunk/avrdude@39 81a1dc3b-b13d-400b-aceb-764788c761c2
This commit is contained in:
bsd 2001-01-19 03:10:53 +00:00
parent b211c95bfe
commit ab38e77526
1 changed files with 45 additions and 37 deletions
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32
term.c
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@ -197,11 +197,17 @@ int cmd_dump ( int fd, struct avrpart * p, int argc, char * argv[] )
{
char * e;
int i, j;
int len, maxsize;
AVRMEM memtype;
unsigned short addr, daddr;
unsigned short daddr;
char * buf;
int maxsize;
static AVRMEM memtype=AVR_FLASH;
static unsigned short addr=0;
static int len=64;
if (argc == 1) {
addr += len;
}
else {
if (argc != 4) {
fprintf(stderr, "Usage: dump flash|eeprom <addr> <len>\n");
return -1;
@ -209,11 +215,9 @@ int cmd_dump ( int fd, struct avrpart * p, int argc, char * argv[] )
if (strcmp(argv[1],"flash")==0) {
memtype = AVR_FLASH;
maxsize = p->flash_size;
}
else if (strcmp(argv[1],"eeprom")==0) {
memtype = AVR_EEPROM;
maxsize = p->eeprom_size;
}
else {
fprintf(stderr, "%s (dump): invalid memory type \"%s\"\n",
@ -234,6 +238,14 @@ int cmd_dump ( int fd, struct avrpart * p, int argc, char * argv[] )
progname, argv[3]);
return -1;
}
}
switch (memtype) {
case AVR_FLASH : maxsize = p->flash_size; break;
case AVR_EEPROM : maxsize = p->eeprom_size; break;
default : return -1; /* this can't happen, but is silences gcc
warnings */
}
if (addr > maxsize) {
fprintf(stderr,
@ -242,13 +254,9 @@ int cmd_dump ( int fd, struct avrpart * p, int argc, char * argv[] )
return -1;
}
if ((addr + len) > maxsize) {
fprintf(stderr,
"%s (dump): selected address and length exceed "
"range for %s memory\n",
progname, avr_memtstr(memtype));
return -1;
}
/* trim len if nessary to not read past the end of memory */
if ((addr + len) > maxsize)
len = maxsize - addr;
buf = malloc(len);
if (buf == NULL) {