static void
wl_media_connected_cb(void* ctx)
{
struct cm *cm = ctx;
struct wl_network_t *net = wl_get_current_network();
CM_DPRINTF("CM: connected to %s\n", ssid2str(&net->ssid));
if (cm->conn_cb)
cm->conn_cb(net, cm->ctx);
}
cmd_state_t
cmd_status(int argc, char* argv[], void* ctx)
{
struct net_cfg *ncfg = ctx;
struct wl_network_t* net;
uint8_t mac[WL_MAC_ADDR_LENGTH];
printk("wl_api version " WL_API_RELEASE_NAME "\n");
/* print mac address */
if (wl_get_mac_addr(mac) != WL_SUCCESS) {
printk("failed to get mac address\n");
return CMD_DONE;
}
printk("hw addr: %s\n", mac2str(mac));
/* print network info */
net = wl_get_current_network();
printk("link status: ");
if (!net) {
printk("down\n");
return CMD_DONE;
}
print_network(net);
/* print ip address */
if (netif_is_up(netif_default))
printk("ip addr: %s\n", ip2str(netif_default->ip_addr));
else
printk("ip addr: none\n");
printk("dhcp : ");
if (ncfg->dhcp_enabled) {
printk("enabled\n");
}
else {
printk("disabled\n");
}
return CMD_DONE;
}
static void
select_net(struct cm* cm)
{
struct wl_network_t *candidate_net;
struct wl_network_t *current_net;
struct wl_ssid_t *ssid_p;
int ret;
/* Nothing to do */
if (0 == cm->candidate.ssid.len) {
return;
}
current_net = wl_get_current_network();
candidate_net = find_best_candidate(cm);
/* Connected to the candidate? ... */
if ( current_net == candidate_net ) {
if ( current_net ) {
/* ...yes, dont change. */
return;
}
}
/* Roaming checks */
if (current_net && candidate_net) {
/* Are we changing BSSs? */
if ( equal_ssid(&candidate_net->ssid,
¤t_net->ssid)) {
/* ...no. Does the currently connected
* net have a decent RSSI?...*/
if ( current_net->rssi > ROAMING_RSSI_THRESHOLD ) {
/* ...yes, stay with it. */
return;
}
/* ...no. Does the candidate have
* sufficiently better RSSI to
* motivate a switch to it? */
if ( candidate_net->rssi < current_net->rssi +
ROAMING_RSSI_DIFF) {
return;
}
/* ...yes, try to roam to candidate_net */
CM_DPRINTF("CM: Roaming from rssi %d to %d\n",
current_net->rssi,
candidate_net->rssi);
}
}
/* a candidate is found */
if (candidate_net) {
/* We connect to a specific bssid here because
* find_best_candidate() might have picked a
* particulare AP among many with the same SSID.
* wl_connect() would pick one of them at random.
*/
ret = wl_connect_bssid(candidate_net->bssid);
}
/* no candidate found */
else {
CM_DPRINTF("CM: No candidate found for ssid \"%s\"\n",
ssid2str(&cm->candidate.ssid));
/* Might be a hidden SSID so we try to connect to it.
* wl_connect() will trigger a directed scan
* for the SSID in this case.
*/
ssid_p = &cm->candidate.ssid;
ret = wl_connect(ssid_p->ssid, ssid_p->len);
}
switch (ret) {
case WL_SUCCESS :
return;
case WL_BUSY:
wl_disconnect();
return;
case WL_RETRY:
break;
default :
CM_DPRINTF("CM: failed to connect\n");
break;
}
/* some operation failed or no candidate found */
if (wl_scan() != WL_SUCCESS)
CM_DPRINTF("CM: failed to scan\n");
}
