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* pgm.[ch], main.c, par.c, avr910.c, butterfly.c, stk500.c:

Browse Source 
Move save/restore-functionality into open/close.
	* par.c: open/close now saves/restores PPICTRL, too.
	* TODO: exitspecs don't work if RESET is in PPICTRL.


git-svn-id: svn://svn.savannah.nongnu.org/avrdude/trunk/avrdude@407 81a1dc3b-b13d-400b-aceb-764788c761c2
This commit is contained in:
hinni
2004-01-28 20:01:44 +00:00
parent 94dfac9f86
commit 3ee1be5529
9 changed files with 59 additions and 106 deletions
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61
par.c
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@@ -105,15 +105,11 @@ static void par_powerdown (PROGRAMMER * pgm);
static int par_initialize (PROGRAMMER * pgm, AVRPART * p);
static int par_save (PROGRAMMER * pgm);
static void par_restore (PROGRAMMER * pgm);
static void par_disable (PROGRAMMER * pgm);
static void par_enable (PROGRAMMER * pgm);
static void par_open (PROGRAMMER * pgm, char * port);
static int par_open (PROGRAMMER * pgm, char * port);
static void par_close (PROGRAMMER * pgm);
@@ -437,26 +433,6 @@ static int par_initialize(PROGRAMMER * pgm, AVRPART * p)
}
static int par_save(PROGRAMMER * pgm)
{
int rc;
rc = ppi_getall(pgm->fd, PPIDATA);
if (rc < 0) {
fprintf(stderr, "%s: error reading status of ppi data port\n", progname);
return -1;
}
pgm->ppidata = rc;
return 0;
}
static void par_restore(PROGRAMMER * pgm)
{
ppi_setall(pgm->fd, PPIDATA, pgm->ppidata);
}
static void par_disable(PROGRAMMER * pgm)
{
ppi_set(pgm->fd, PPIDATA, pgm->pinno[PPI_AVR_BUFF]);
@@ -485,8 +461,10 @@ static void par_enable(PROGRAMMER * pgm)
}
static void par_open(PROGRAMMER * pgm, char * port)
static int par_open(PROGRAMMER * pgm, char * port)
{
int rc;
pgm->fd = ppi_open(port);
if (pgm->fd < 0) {
fprintf(stderr, "%s: failed to open parallel port \"%s\"\n\n",
@@ -495,11 +473,38 @@ static void par_open(PROGRAMMER * pgm, char * port)
}
ppi_claim(pgm);
/*
* save pin values, so they can be restored when device is closed
*/
rc = ppi_getall(pgm->fd, PPIDATA);
if (rc < 0) {
fprintf(stderr, "%s: error reading status of ppi data port\n", progname);
return -1;
}
pgm->ppidata = rc;
rc = ppi_getall(pgm->fd, PPICTRL);
if (rc < 0) {
fprintf(stderr, "%s: error reading status of ppi ctrl port\n", progname);
return -1;
}
pgm->ppictrl = rc;
return 0;
}
static void par_close(PROGRAMMER * pgm)
{
/*
* Restore pin values before closing,
* but ensure that buffers are turned off.
*/
pgm->ppidata |= pgm->pinno[PPI_AVR_BUFF];
ppi_setall(pgm->fd, PPIDATA, pgm->ppidata);
ppi_setall(pgm->fd, PPICTRL, pgm->ppictrl);
ppi_release(pgm);
ppi_close(pgm->fd);
@@ -513,7 +518,7 @@ static void par_display(PROGRAMMER * pgm, char * p)
char buffpins[64];
if (pgm->pinno[PPI_AVR_VCC]) {
snprintf(vccpins, sizeof(vccpins), " = pins %s",
snprintf(vccpins, sizeof(vccpins), " = pins %s",
vccpins_str(pgm->pinno[PPI_AVR_VCC]));
}
else {
@@ -563,8 +568,6 @@ void par_initpgm(PROGRAMMER * pgm)
pgm->vfy_led = par_vfy_led;
pgm->initialize = par_initialize;
pgm->display = par_display;
pgm->save = par_save;
pgm->restore = par_restore;
pgm->enable = par_enable;
pgm->disable = par_disable;
pgm->powerup = par_powerup;