/* Allocate private resource */
adm_info_t *
adm_attach(si_t *sih, char *vars)
{
adm_info_t *adm;
int gpio;
/* Allocate private data */
if (!(adm = MALLOC(si_osh(sih), sizeof(adm_info_t)))) {
ET_ERROR(("adm_attach: out of memory, malloc %d bytes", MALLOCED(si_osh(sih))));
return NULL;
}
bzero((char *) adm, sizeof(adm_info_t));
adm->sih = sih;
adm->vars = vars;
/* Init GPIO mapping. Default GPIO: 2, 3, 4 */
gpio = getgpiopin(vars, "adm_eecs", 2);
ET_ERROR(("adm_attach: got %d as adm_eecs", gpio));
if (gpio == GPIO_PIN_NOTDEFINED) {
ET_ERROR(("adm_attach: adm_eecs gpio fail: GPIO 2 in use"));
goto error;
}
adm->eecs = 1 << gpio;
gpio = getgpiopin(vars, "adm_eesk", 3);
ET_ERROR(("adm_attach: got %d as adm_eesk", gpio));
if (gpio == GPIO_PIN_NOTDEFINED) {
ET_ERROR(("adm_attach: adm_eesk gpio fail: GPIO 3 in use"));
goto error;
}
adm->eesk = 1 << gpio;
gpio = getgpiopin(vars, "adm_eedi", 4);
ET_ERROR(("adm_attach: got %d as adm_eedi", gpio));
if (gpio == GPIO_PIN_NOTDEFINED) {
ET_ERROR(("adm_attach: adm_eedi gpio fail: GPIO 4 in use"));
goto error;
}
adm->eedi = 1 << gpio;
return adm;
error:
adm_detach(adm);
return NULL;
}
static void
chipdetach(struct bcm4xxx *ch)
{
ET_TRACE(("et%d: chipdetach\n", ch->etc->unit));
if (ch == NULL)
return;
#ifdef ETROBO
/* free robo state */
if (ch->etc->robo)
bcm_robo_detach(ch->etc->robo);
#endif /* ETROBO */
#ifdef ETADM
/* free ADMtek state */
if (ch->adm)
adm_detach(ch->adm);
#endif /* ETADM */
/* free dma state */
if (ch->di)
dma_detach(ch->di);
ch->di = NULL;
/* put the core back into reset */
if (ch->sih)
si_core_disable(ch->sih, 0);
/* free si handle */
si_detach(ch->sih);
ch->sih = NULL;
/* free vars */
if (ch->vars)
MFREE(ch->osh, ch->vars, ch->vars_size);
/* free chip private state */
MFREE(ch->osh, ch, sizeof(struct bcm4xxx));
}