static inline void
enqueue_ui(struct layer2 *l2, struct sk_buff *skb)
{
if (l2->tm)
l2_tei(l2, MDL_STATUS_UI_IND, 0);
if (l2down(l2, PH_DATA_REQ, l2_newid(l2), skb))
dev_kfree_skb(skb);
}
static void
l2_mdl_assign(struct FsmInst *fi, int event, void *arg)
{
struct layer2 *l2 = fi->userdata;
mISDN_FsmChangeState(fi, ST_L2_3);
dev_kfree_skb((struct sk_buff *)arg);
l2_tei(l2, MDL_ASSIGN_IND, 0);
}
static void
l2_queue_ui_assign(struct FsmInst *fi, int event, void *arg)
{
struct layer2 *l2 = fi->userdata;
struct sk_buff *skb = arg;
skb_queue_tail(&l2->ui_queue, skb);
mISDN_FsmChangeState(fi, ST_L2_2);
l2_tei(l2, MDL_ASSIGN_IND, 0);
}
static void
l2_queue_ui_assign(struct FsmInst *fi, int event, void *arg)
{
layer2_t *l2 = fi->userdata;
msg_t *msg = arg;
msg_queue_tail(&l2->ui_queue, msg);
FsmChangeState(fi, ST_L2_2);
if ((msg = create_link_msg(MDL_ASSIGN | INDICATION, 0, 0, NULL, 0))) {
if (l2_tei(l2->tm, msg))
free_msg(msg);
}
}
static void
l2_st6_dm_release(struct FsmInst *fi, int event, void *arg)
{
struct layer2 *l2 = fi->userdata;
struct sk_buff *skb = arg;
if (get_PollFlagFree(l2, skb)) {
stop_t200(l2, 8);
lapb_dl_release_l2l3(l2, DL_RELEASE_CNF);
mISDN_FsmChangeState(fi, ST_L2_4);
if (l2->tm)
l2_tei(l2, MDL_STATUS_DOWN_IND, 0);
}
}
static void
l2_got_ui(struct FsmInst *fi, int event, void *arg)
{
struct layer2 *l2 = fi->userdata;
struct sk_buff *skb = arg;
skb_pull(skb, l2headersize(l2, 1));
/*
* in states 1-3 for broadcast
*/
if (l2->tm)
l2_tei(l2, MDL_STATUS_UI_IND, 0);
l2up(l2, DL_UNITDATA_IND, skb);
}
static void
l2_mdl_assign(struct FsmInst *fi, int event, void *arg)
{
layer2_t *l2 = fi->userdata;
msg_t *msg = arg;
mISDNuser_head_t *hh;
FsmChangeState(fi, ST_L2_3);
msg_trim(msg, 0);
hh = (mISDNuser_head_t *)msg_put(msg, mISDNUSER_HEAD_SIZE);
hh->prim = MDL_ASSIGN | INDICATION;
hh->dinfo = 0;
if (l2_tei(l2->tm, msg))
free_msg(msg);
}
static void
l2_stop_multi(struct FsmInst *fi, int event, void *arg)
{
struct layer2 *l2 = fi->userdata;
struct sk_buff *skb = arg;
mISDN_FsmChangeState(fi, ST_L2_4);
mISDN_FsmDelTimer(&l2->t203, 3);
stop_t200(l2, 4);
send_uframe(l2, skb, UA | get_PollFlag(l2, skb), RSP);
skb_queue_purge(&l2->i_queue);
freewin(l2);
lapb_dl_release_l2l3(l2, DL_RELEASE_IND);
if (l2->tm)
l2_tei(l2, MDL_STATUS_DOWN_IND, 0);
}
static void
l2_released(struct FsmInst *fi, int event, void *arg)
{
struct layer2 *l2 = fi->userdata;
struct sk_buff *skb = arg;
if (!get_PollFlag(l2, skb)) {
l2_mdl_error_ua(fi, event, arg);
return;
}
dev_kfree_skb(skb);
stop_t200(l2, 6);
lapb_dl_release_l2l3(l2, DL_RELEASE_CNF);
mISDN_FsmChangeState(fi, ST_L2_4);
if (l2->tm)
l2_tei(l2, MDL_STATUS_DOWN_IND, 0);
}
static void
l2_start_multi(struct FsmInst *fi, int event, void *arg)
{
struct layer2 *l2 = fi->userdata;
struct sk_buff *skb = arg;
l2->vs = 0;
l2->va = 0;
l2->vr = 0;
l2->sow = 0;
clear_exception(l2);
send_uframe(l2, NULL, UA | get_PollFlag(l2, skb), RSP);
mISDN_FsmChangeState(fi, ST_L2_7);
mISDN_FsmAddTimer(&l2->t203, l2->T203, EV_L2_T203, NULL, 3);
skb_trim(skb, 0);
l2up(l2, DL_ESTABLISH_IND, skb);
if (l2->tm)
l2_tei(l2, MDL_STATUS_UP_IND, 0);
}
static int
l2mgr(struct layer2 *l2, u_int prim, void *arg) {
long c = (long)arg;
printk(KERN_WARNING
"l2mgr: addr:%x prim %x %c\n", l2->id, prim, (char)c);
if (test_bit(FLG_LAPD, &l2->flag) &&
!test_bit(FLG_FIXED_TEI, &l2->flag)) {
switch (c) {
case 'C':
case 'D':
case 'G':
case 'H':
l2_tei(l2, prim, (u_long)arg);
break;
}
}
return 0;
}
static void
l2_st5_dm_release(struct FsmInst *fi, int event, void *arg)
{
struct layer2 *l2 = fi->userdata;
struct sk_buff *skb = arg;
if (get_PollFlagFree(l2, skb)) {
stop_t200(l2, 7);
if (!test_bit(FLG_L3_INIT, &l2->flag))
skb_queue_purge(&l2->i_queue);
if (test_bit(FLG_LAPB, &l2->flag))
l2down_create(l2, PH_DEACTIVATE_REQ,
l2_newid(l2), 0, NULL);
st5_dl_release_l2l3(l2);
mISDN_FsmChangeState(fi, ST_L2_4);
if (l2->tm)
l2_tei(l2, MDL_STATUS_DOWN_IND, 0);
}
}
static void
l2_connected(struct FsmInst *fi, int event, void *arg)
{
struct layer2 *l2 = fi->userdata;
struct sk_buff *skb = arg;
int pr = -1;
if (!get_PollFlag(l2, skb)) {
l2_mdl_error_ua(fi, event, arg);
return;
}
dev_kfree_skb(skb);
if (test_and_clear_bit(FLG_PEND_REL, &l2->flag))
l2_disconnect(fi, event, NULL);
if (test_and_clear_bit(FLG_L3_INIT, &l2->flag)) {
pr = DL_ESTABLISH_CNF;
} else if (l2->vs != l2->va) {
skb_queue_purge(&l2->i_queue);
pr = DL_ESTABLISH_IND;
}
stop_t200(l2, 5);
l2->vr = 0;
l2->vs = 0;
l2->va = 0;
l2->sow = 0;
mISDN_FsmChangeState(fi, ST_L2_7);
mISDN_FsmAddTimer(&l2->t203, l2->T203, EV_L2_T203, NULL, 4);
if (pr != -1)
l2up_create(l2, pr, 0, NULL);
if (skb_queue_len(&l2->i_queue) && cansend(l2))
mISDN_FsmEvent(fi, EV_L2_ACK_PULL, NULL);
if (l2->tm)
l2_tei(l2, MDL_STATUS_UP_IND, 0);
}
