int gpio_init_int(gpio_t pin, gpio_pp_t pullup, gpio_flank_t flank,
gpio_cb_t cb, void *arg)
{
DEBUG("gpio_init_int(): pin %u\n", pin);
int isr_map_entry;
/* check if interrupt is possible for this pin */
if ((isr_map_entry = _isr_map_entry(pin)) == -1) {
DEBUG("gpio_init_int(): pin %u cannot be used to generate interrupts.\n", pin);
return -1;
}
/* find free isr state entry */
int _state_index = _gpio_isr_map[isr_map_entry];
if (_state_index == 0xff) {
_state_index = bf_get_unset(_gpio_config_bitfield, GPIO_NUM_ISR);
_gpio_isr_map[isr_map_entry] = _state_index;
DEBUG("gpio_init_int(): pin has state_index=%i isr_map_entry=%i\n", _state_index, isr_map_entry);
}
if (_state_index == 0xff) {
#ifdef DEVELHELP
puts("lpc2387: gpio: warning: no free gpio callback state!");
#endif
return -1;
}
/* store callback */
_gpio_states[_state_index].cb = cb;
_gpio_states[_state_index].arg = arg;
extern void GPIO_IRQHandler(void);
gpio_init(pin, GPIO_DIR_IN, pullup);
if (flank & GPIO_FALLING) {
bf_set(_gpio_falling, _state_index);
}
else {
bf_unset(_gpio_falling, _state_index);
}
if (flank & GPIO_RISING) {
bf_set(_gpio_rising, _state_index);
}
else {
bf_unset(_gpio_rising, _state_index);
}
_gpio_configure(pin, flank & GPIO_RISING, flank & GPIO_FALLING);
/* activate irq */
INTWAKE |= GPIO0WAKE | GPIO2WAKE; /* allow GPIO to wake up from power down */
install_irq(GPIO_INT, &GPIO_IRQHandler, IRQP_GPIO); /* install irq handler */
return 0;
}
void gnrc_ipv6_whitelist_del(const ipv6_addr_t *addr)
{
for (int i = 0; i < GNRC_IPV6_WHITELIST_SIZE; i++) {
if (ipv6_addr_equal(addr, &gnrc_ipv6_whitelist[i])) {
bf_unset(gnrc_ipv6_whitelist_set, i);
DEBUG("IPv6 whitelist: unwhitelisted %s\n",
ipv6_addr_to_str(addr_str, addr, sizeof(addr_str)));
}
}
}
void gnrc_sixlowpan_nd_router_abr_remove(gnrc_sixlowpan_nd_router_abr_t *abr)
{
for (int i = 0; i < GNRC_SIXLOWPAN_CTX_SIZE; i++) {
if (bf_isset(abr->ctxs, i)) {
gnrc_sixlowpan_ctx_remove(i);
bf_unset(abr->ctxs, i);
}
}
while (abr->prfs != NULL) {
gnrc_sixlowpan_nd_router_prf_t *prefix = abr->prfs;
LL_DELETE(abr->prfs, prefix);
gnrc_ipv6_netif_remove_addr(prefix->iface->pid, &prefix->prefix->addr);
prefix->next = NULL;
prefix->iface = NULL;
prefix->prefix = NULL;
}
ipv6_addr_set_unspecified(&abr->addr);
abr->version = 0;
}
/* UINT16_MAX min < UINT32_MAX ms so no risk of overflow */
MS_PER_SEC * SEC_PER_MIN * ltime);
}
return abr;
}
#endif /* GNRC_IPV6_NIB_CONF_MULTIHOP_P6C */
#if GNRC_IPV6_NIB_CONF_MULTIHOP_P6C
uint32_t _handle_6co(const icmpv6_hdr_t *icmpv6,
const sixlowpan_nd_opt_6ctx_t *sixco,
_nib_abr_entry_t *abr)
#else /* GNRC_IPV6_NIB_CONF_MULTIHOP_P6C */
uint32_t _handle_6co(const icmpv6_hdr_t *icmpv6,
const sixlowpan_nd_opt_6ctx_t *sixco)
#endif /* GNRC_IPV6_NIB_CONF_MULTIHOP_P6C */
{
uint16_t ltime;
#ifdef MODULE_GNRC_SIXLOWPAN_CTX
uint8_t cid;
#endif /* MODULE_GNRC_SIXLOWPAN_CTX */
if ((sixco->len != SIXLOWPAN_ND_OPT_6CTX_LEN_MIN) ||
((sixco->len != SIXLOWPAN_ND_OPT_6CTX_LEN_MAX) &&
(sixco->ctx_len > 64U)) ||
(icmpv6->type != ICMPV6_RTR_ADV)) {
DEBUG("nib: received 6CO of invalid length (%u), must be %u "
"or wasn't delivered by RA."
"\n",
sixco->len,
(sixco->ctx_len > 64U) ? SIXLOWPAN_ND_OPT_6CTX_LEN_MAX :
SIXLOWPAN_ND_OPT_6CTX_LEN_MIN);
return UINT32_MAX;
}
ltime = byteorder_ntohs(sixco->ltime);
#ifdef MODULE_GNRC_SIXLOWPAN_CTX
cid = sixlowpan_nd_opt_6ctx_get_cid(sixco);
gnrc_sixlowpan_ctx_update(cid, (ipv6_addr_t *)(sixco + 1), sixco->ctx_len,
ltime, sixlowpan_nd_opt_6ctx_is_comp(sixco));
#if GNRC_IPV6_NIB_CONF_MULTIHOP_P6C
assert(abr != NULL); /* should have been set in _handle_abro() */
if (ltime == 0) {
bf_unset(abr->ctxs, cid);
}
else {
bf_set(abr->ctxs, cid);
}
#endif /* GNRC_IPV6_NIB_CONF_MULTIHOP_P6C */
#else /* MODULE_GNRC_SIXLOWPAN_CTX */
(void)abr;
#endif /* MODULE_GNRC_SIXLOWPAN_CTX */
return ltime * SEC_PER_MIN * MS_PER_SEC;
}