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linux/drivers/isdn/hisax/isdnl1.c
David S. Miller b03efcfb21 [NET]: Transform skb_queue_len() binary tests into skb_queue_empty() 
This is part of the grand scheme to eliminate the qlen
member of skb_queue_head, and subsequently remove the
'list' member of sk_buff.

Most users of skb_queue_len() want to know if the queue is
empty or not, and that's trivially done with skb_queue_empty()
which doesn't use the skb_queue_head->qlen member and instead
uses the queue list emptyness as the test.

Signed-off-by: David S. Miller <davem@davemloft.net>
2005-07-08 14:57:23 -07:00

934 lines
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/* $Id: isdnl1.c,v 2.46.2.5 2004/02/11 13:21:34 keil Exp $
*
* common low level stuff for Siemens Chipsetbased isdn cards
*
* Author Karsten Keil
* based on the teles driver from Jan den Ouden
* Copyright by Karsten Keil <keil@isdn4linux.de>
*
* This software may be used and distributed according to the terms
* of the GNU General Public License, incorporated herein by reference.
*
* For changes and modifications please read
* Documentation/isdn/HiSax.cert
*
* Thanks to Jan den Ouden
* Fritz Elfert
* Beat Doebeli
*
*/
const char *l1_revision = "$Revision: 2.46.2.5 $";
#include <linux/init.h>
#include "hisax.h"
#include "isdnl1.h"
#define TIMER3_VALUE 7000
static struct Fsm l1fsm_b;
static struct Fsm l1fsm_s;
enum {
ST_L1_F2,
ST_L1_F3,
ST_L1_F4,
ST_L1_F5,
ST_L1_F6,
ST_L1_F7,
ST_L1_F8,
};
#define L1S_STATE_COUNT (ST_L1_F8+1)
static char *strL1SState[] =
{
"ST_L1_F2",
"ST_L1_F3",
"ST_L1_F4",
"ST_L1_F5",
"ST_L1_F6",
"ST_L1_F7",
"ST_L1_F8",
};
#ifdef HISAX_UINTERFACE
static
struct Fsm l1fsm_u =
{NULL, 0, 0, NULL, NULL};
enum {
ST_L1_RESET,
ST_L1_DEACT,
ST_L1_SYNC2,
ST_L1_TRANS,
};
#define L1U_STATE_COUNT (ST_L1_TRANS+1)
static char *strL1UState[] =
{
"ST_L1_RESET",
"ST_L1_DEACT",
"ST_L1_SYNC2",
"ST_L1_TRANS",
};
#endif
enum {
ST_L1_NULL,
ST_L1_WAIT_ACT,
ST_L1_WAIT_DEACT,
ST_L1_ACTIV,
};
#define L1B_STATE_COUNT (ST_L1_ACTIV+1)
static char *strL1BState[] =
{
"ST_L1_NULL",
"ST_L1_WAIT_ACT",
"ST_L1_WAIT_DEACT",
"ST_L1_ACTIV",
};
enum {
EV_PH_ACTIVATE,
EV_PH_DEACTIVATE,
EV_RESET_IND,
EV_DEACT_CNF,
EV_DEACT_IND,
EV_POWER_UP,
EV_RSYNC_IND,
EV_INFO2_IND,
EV_INFO4_IND,
EV_TIMER_DEACT,
EV_TIMER_ACT,
EV_TIMER3,
};
#define L1_EVENT_COUNT (EV_TIMER3 + 1)
static char *strL1Event[] =
{
"EV_PH_ACTIVATE",
"EV_PH_DEACTIVATE",
"EV_RESET_IND",
"EV_DEACT_CNF",
"EV_DEACT_IND",
"EV_POWER_UP",
"EV_RSYNC_IND",
"EV_INFO2_IND",
"EV_INFO4_IND",
"EV_TIMER_DEACT",
"EV_TIMER_ACT",
"EV_TIMER3",
};
void
debugl1(struct IsdnCardState *cs, char *fmt, ...)
{
va_list args;
char tmp[8];
va_start(args, fmt);
sprintf(tmp, "Card%d ", cs->cardnr + 1);
VHiSax_putstatus(cs, tmp, fmt, args);
va_end(args);
}
static void
l1m_debug(struct FsmInst *fi, char *fmt, ...)
{
va_list args;
struct PStack *st = fi->userdata;
struct IsdnCardState *cs = st->l1.hardware;
char tmp[8];
va_start(args, fmt);
sprintf(tmp, "Card%d ", cs->cardnr + 1);
VHiSax_putstatus(cs, tmp, fmt, args);
va_end(args);
}
static void
L1activated(struct IsdnCardState *cs)
{
struct PStack *st;
st = cs->stlist;
while (st) {
if (test_and_clear_bit(FLG_L1_ACTIVATING, &st->l1.Flags))
st->l1.l1l2(st, PH_ACTIVATE | CONFIRM, NULL);
else
st->l1.l1l2(st, PH_ACTIVATE | INDICATION, NULL);
st = st->next;
}
}
static void
L1deactivated(struct IsdnCardState *cs)
{
struct PStack *st;
st = cs->stlist;
while (st) {
if (test_bit(FLG_L1_DBUSY, &cs->HW_Flags))
st->l1.l1l2(st, PH_PAUSE | CONFIRM, NULL);
st->l1.l1l2(st, PH_DEACTIVATE | INDICATION, NULL);
st = st->next;
}
test_and_clear_bit(FLG_L1_DBUSY, &cs->HW_Flags);
}
void
DChannel_proc_xmt(struct IsdnCardState *cs)
{
struct PStack *stptr;
if (cs->tx_skb)
return;
stptr = cs->stlist;
while (stptr != NULL) {
if (test_and_clear_bit(FLG_L1_PULL_REQ, &stptr->l1.Flags)) {
stptr->l1.l1l2(stptr, PH_PULL | CONFIRM, NULL);
break;
} else
stptr = stptr->next;
}
}
void
DChannel_proc_rcv(struct IsdnCardState *cs)
{
struct sk_buff *skb, *nskb;
struct PStack *stptr = cs->stlist;
int found, tei, sapi;
if (stptr)
if (test_bit(FLG_L1_ACTTIMER, &stptr->l1.Flags))
FsmEvent(&stptr->l1.l1m, EV_TIMER_ACT, NULL);
while ((skb = skb_dequeue(&cs->rq))) {
#ifdef L2FRAME_DEBUG /* psa */
if (cs->debug & L1_DEB_LAPD)
Logl2Frame(cs, skb, "PH_DATA", 1);
#endif
stptr = cs->stlist;
if (skb->len<3) {
debugl1(cs, "D-channel frame too short(%d)",skb->len);
dev_kfree_skb(skb);
return;
}
if ((skb->data[0] & 1) || !(skb->data[1] &1)) {
debugl1(cs, "D-channel frame wrong EA0/EA1");
dev_kfree_skb(skb);
return;
}
sapi = skb->data[0] >> 2;
tei = skb->data[1] >> 1;
if (cs->debug & DEB_DLOG_HEX)
LogFrame(cs, skb->data, skb->len);
if (cs->debug & DEB_DLOG_VERBOSE)
dlogframe(cs, skb, 1);
if (tei == GROUP_TEI) {
if (sapi == CTRL_SAPI) { /* sapi 0 */
while (stptr != NULL) {
if ((nskb = skb_clone(skb, GFP_ATOMIC)))
stptr->l1.l1l2(stptr, PH_DATA | INDICATION, nskb);
else
printk(KERN_WARNING "HiSax: isdn broadcast buffer shortage\n");
stptr = stptr->next;
}
} else if (sapi == TEI_SAPI) {
while (stptr != NULL) {
if ((nskb = skb_clone(skb, GFP_ATOMIC)))
stptr->l1.l1tei(stptr, PH_DATA | INDICATION, nskb);
else
printk(KERN_WARNING "HiSax: tei broadcast buffer shortage\n");
stptr = stptr->next;
}
}
dev_kfree_skb(skb);
} else if (sapi == CTRL_SAPI) { /* sapi 0 */
found = 0;
while (stptr != NULL)
if (tei == stptr->l2.tei) {
stptr->l1.l1l2(stptr, PH_DATA | INDICATION, skb);
found = !0;
break;
} else
stptr = stptr->next;
if (!found)
dev_kfree_skb(skb);
} else
dev_kfree_skb(skb);
}
}
static void
BChannel_proc_xmt(struct BCState *bcs)
{
struct PStack *st = bcs->st;
if (test_bit(BC_FLG_BUSY, &bcs->Flag)) {
debugl1(bcs->cs, "BC_BUSY Error");
return;
}
if (test_and_clear_bit(FLG_L1_PULL_REQ, &st->l1.Flags))
st->l1.l1l2(st, PH_PULL | CONFIRM, NULL);
if (!test_bit(BC_FLG_ACTIV, &bcs->Flag)) {
if (!test_bit(BC_FLG_BUSY, &bcs->Flag) &&
skb_queue_empty(&bcs->squeue)) {
st->l2.l2l1(st, PH_DEACTIVATE | CONFIRM, NULL);
}
}
}
static void
BChannel_proc_rcv(struct BCState *bcs)
{
struct sk_buff *skb;
if (bcs->st->l1.l1m.state == ST_L1_WAIT_ACT) {
FsmDelTimer(&bcs->st->l1.timer, 4);
FsmEvent(&bcs->st->l1.l1m, EV_TIMER_ACT, NULL);
}
while ((skb = skb_dequeue(&bcs->rqueue))) {
bcs->st->l1.l1l2(bcs->st, PH_DATA | INDICATION, skb);
}
}
static void
BChannel_proc_ack(struct BCState *bcs)
{
u_long flags;
int ack;
spin_lock_irqsave(&bcs->aclock, flags);
ack = bcs->ackcnt;
bcs->ackcnt = 0;
spin_unlock_irqrestore(&bcs->aclock, flags);
if (ack)
lli_writewakeup(bcs->st, ack);
}
void
BChannel_bh(struct BCState *bcs)
{
if (!bcs)
return;
if (test_and_clear_bit(B_RCVBUFREADY, &bcs->event))
BChannel_proc_rcv(bcs);
if (test_and_clear_bit(B_XMTBUFREADY, &bcs->event))
BChannel_proc_xmt(bcs);
if (test_and_clear_bit(B_ACKPENDING, &bcs->event))
BChannel_proc_ack(bcs);
}
void
HiSax_addlist(struct IsdnCardState *cs,
struct PStack *st)
{
st->next = cs->stlist;
cs->stlist = st;
}
void
HiSax_rmlist(struct IsdnCardState *cs,
struct PStack *st)
{
struct PStack *p;
FsmDelTimer(&st->l1.timer, 0);
if (cs->stlist == st)
cs->stlist = st->next;
else {
p = cs->stlist;
while (p)
if (p->next == st) {
p->next = st->next;
return;
} else
p = p->next;
}
}
void
init_bcstate(struct IsdnCardState *cs, int bc)
{
struct BCState *bcs = cs->bcs + bc;
bcs->cs = cs;
bcs->channel = bc;
INIT_WORK(&bcs->tqueue, (void *)(void *) BChannel_bh, bcs);
spin_lock_init(&bcs->aclock);
bcs->BC_SetStack = NULL;
bcs->BC_Close = NULL;
bcs->Flag = 0;
}
#ifdef L2FRAME_DEBUG /* psa */
static char *
l2cmd(u_char cmd)
{
switch (cmd & ~0x10) {
case 1:
return "RR";
case 5:
return "RNR";
case 9:
return "REJ";
case 0x6f:
return "SABME";
case 0x0f:
return "DM";
case 3:
return "UI";
case 0x43:
return "DISC";
case 0x63:
return "UA";
case 0x87:
return "FRMR";
case 0xaf:
return "XID";
default:
if (!(cmd & 1))
return "I";
else
return "invalid command";
}
}
static char tmpdeb[32];
static char *
l2frames(u_char * ptr)
{
switch (ptr[2] & ~0x10) {
case 1:
case 5:
case 9:
sprintf(tmpdeb, "%s[%d](nr %d)", l2cmd(ptr[2]), ptr[3] & 1, ptr[3] >> 1);
break;
case 0x6f:
case 0x0f:
case 3:
case 0x43:
case 0x63:
case 0x87:
case 0xaf:
sprintf(tmpdeb, "%s[%d]", l2cmd(ptr[2]), (ptr[2] & 0x10) >> 4);
break;
default:
if (!(ptr[2] & 1)) {
sprintf(tmpdeb, "I[%d](ns %d, nr %d)", ptr[3] & 1, ptr[2] >> 1, ptr[3] >> 1);
break;
} else
return "invalid command";
}
return tmpdeb;
}
void
Logl2Frame(struct IsdnCardState *cs, struct sk_buff *skb, char *buf, int dir)
{
u_char *ptr;
ptr = skb->data;
if (ptr[0] & 1 || !(ptr[1] & 1))
debugl1(cs, "Address not LAPD");
else
debugl1(cs, "%s %s: %s%c (sapi %d, tei %d)",
(dir ? "<-" : "->"), buf, l2frames(ptr),
((ptr[0] & 2) >> 1) == dir ? 'C' : 'R', ptr[0] >> 2, ptr[1] >> 1);
}
#endif
static void
l1_reset(struct FsmInst *fi, int event, void *arg)
{
FsmChangeState(fi, ST_L1_F3);
}
static void
l1_deact_cnf(struct FsmInst *fi, int event, void *arg)
{
struct PStack *st = fi->userdata;
FsmChangeState(fi, ST_L1_F3);
if (test_bit(FLG_L1_ACTIVATING, &st->l1.Flags))
st->l1.l1hw(st, HW_ENABLE | REQUEST, NULL);
}
static void
l1_deact_req_s(struct FsmInst *fi, int event, void *arg)
{
struct PStack *st = fi->userdata;
FsmChangeState(fi, ST_L1_F3);
FsmRestartTimer(&st->l1.timer, 550, EV_TIMER_DEACT, NULL, 2);
test_and_set_bit(FLG_L1_DEACTTIMER, &st->l1.Flags);
}
static void
l1_power_up_s(struct FsmInst *fi, int event, void *arg)
{
struct PStack *st = fi->userdata;
if (test_bit(FLG_L1_ACTIVATING, &st->l1.Flags)) {
FsmChangeState(fi, ST_L1_F4);
st->l1.l1hw(st, HW_INFO3 | REQUEST, NULL);
FsmRestartTimer(&st->l1.timer, TIMER3_VALUE, EV_TIMER3, NULL, 2);
test_and_set_bit(FLG_L1_T3RUN, &st->l1.Flags);
} else
FsmChangeState(fi, ST_L1_F3);
}
static void
l1_go_F5(struct FsmInst *fi, int event, void *arg)
{
FsmChangeState(fi, ST_L1_F5);
}
static void
l1_go_F8(struct FsmInst *fi, int event, void *arg)
{
FsmChangeState(fi, ST_L1_F8);
}
static void
l1_info2_ind(struct FsmInst *fi, int event, void *arg)
{
struct PStack *st = fi->userdata;
#ifdef HISAX_UINTERFACE
if (test_bit(FLG_L1_UINT, &st->l1.Flags))
FsmChangeState(fi, ST_L1_SYNC2);
else
#endif
FsmChangeState(fi, ST_L1_F6);
st->l1.l1hw(st, HW_INFO3 | REQUEST, NULL);
}
static void
l1_info4_ind(struct FsmInst *fi, int event, void *arg)
{
struct PStack *st = fi->userdata;
#ifdef HISAX_UINTERFACE
if (test_bit(FLG_L1_UINT, &st->l1.Flags))
FsmChangeState(fi, ST_L1_TRANS);
else
#endif
FsmChangeState(fi, ST_L1_F7);
st->l1.l1hw(st, HW_INFO3 | REQUEST, NULL);
if (test_and_clear_bit(FLG_L1_DEACTTIMER, &st->l1.Flags))
FsmDelTimer(&st->l1.timer, 4);
if (!test_bit(FLG_L1_ACTIVATED, &st->l1.Flags)) {
if (test_and_clear_bit(FLG_L1_T3RUN, &st->l1.Flags))
FsmDelTimer(&st->l1.timer, 3);
FsmRestartTimer(&st->l1.timer, 110, EV_TIMER_ACT, NULL, 2);
test_and_set_bit(FLG_L1_ACTTIMER, &st->l1.Flags);
}
}
static void
l1_timer3(struct FsmInst *fi, int event, void *arg)
{
struct PStack *st = fi->userdata;
test_and_clear_bit(FLG_L1_T3RUN, &st->l1.Flags);
if (test_and_clear_bit(FLG_L1_ACTIVATING, &st->l1.Flags))
L1deactivated(st->l1.hardware);
#ifdef HISAX_UINTERFACE
if (!test_bit(FLG_L1_UINT, &st->l1.Flags))
#endif
if (st->l1.l1m.state != ST_L1_F6) {
FsmChangeState(fi, ST_L1_F3);
st->l1.l1hw(st, HW_ENABLE | REQUEST, NULL);
}
}
static void
l1_timer_act(struct FsmInst *fi, int event, void *arg)
{
struct PStack *st = fi->userdata;
test_and_clear_bit(FLG_L1_ACTTIMER, &st->l1.Flags);
test_and_set_bit(FLG_L1_ACTIVATED, &st->l1.Flags);
L1activated(st->l1.hardware);
}
static void
l1_timer_deact(struct FsmInst *fi, int event, void *arg)
{
struct PStack *st = fi->userdata;
test_and_clear_bit(FLG_L1_DEACTTIMER, &st->l1.Flags);
test_and_clear_bit(FLG_L1_ACTIVATED, &st->l1.Flags);
L1deactivated(st->l1.hardware);
st->l1.l1hw(st, HW_DEACTIVATE | RESPONSE, NULL);
}
static void
l1_activate_s(struct FsmInst *fi, int event, void *arg)
{
struct PStack *st = fi->userdata;
st->l1.l1hw(st, HW_RESET | REQUEST, NULL);
}
static void
l1_activate_no(struct FsmInst *fi, int event, void *arg)
{
struct PStack *st = fi->userdata;
if ((!test_bit(FLG_L1_DEACTTIMER, &st->l1.Flags)) && (!test_bit(FLG_L1_T3RUN, &st->l1.Flags))) {
test_and_clear_bit(FLG_L1_ACTIVATING, &st->l1.Flags);
L1deactivated(st->l1.hardware);
}
}
static struct FsmNode L1SFnList[] __initdata =
{
{ST_L1_F3, EV_PH_ACTIVATE, l1_activate_s},
{ST_L1_F6, EV_PH_ACTIVATE, l1_activate_no},
{ST_L1_F8, EV_PH_ACTIVATE, l1_activate_no},
{ST_L1_F3, EV_RESET_IND, l1_reset},
{ST_L1_F4, EV_RESET_IND, l1_reset},
{ST_L1_F5, EV_RESET_IND, l1_reset},
{ST_L1_F6, EV_RESET_IND, l1_reset},
{ST_L1_F7, EV_RESET_IND, l1_reset},
{ST_L1_F8, EV_RESET_IND, l1_reset},
{ST_L1_F3, EV_DEACT_CNF, l1_deact_cnf},
{ST_L1_F4, EV_DEACT_CNF, l1_deact_cnf},
{ST_L1_F5, EV_DEACT_CNF, l1_deact_cnf},
{ST_L1_F6, EV_DEACT_CNF, l1_deact_cnf},
{ST_L1_F7, EV_DEACT_CNF, l1_deact_cnf},
{ST_L1_F8, EV_DEACT_CNF, l1_deact_cnf},
{ST_L1_F6, EV_DEACT_IND, l1_deact_req_s},
{ST_L1_F7, EV_DEACT_IND, l1_deact_req_s},
{ST_L1_F8, EV_DEACT_IND, l1_deact_req_s},
{ST_L1_F3, EV_POWER_UP, l1_power_up_s},
{ST_L1_F4, EV_RSYNC_IND, l1_go_F5},
{ST_L1_F6, EV_RSYNC_IND, l1_go_F8},
{ST_L1_F7, EV_RSYNC_IND, l1_go_F8},
{ST_L1_F3, EV_INFO2_IND, l1_info2_ind},
{ST_L1_F4, EV_INFO2_IND, l1_info2_ind},
{ST_L1_F5, EV_INFO2_IND, l1_info2_ind},
{ST_L1_F7, EV_INFO2_IND, l1_info2_ind},
{ST_L1_F8, EV_INFO2_IND, l1_info2_ind},
{ST_L1_F3, EV_INFO4_IND, l1_info4_ind},
{ST_L1_F4, EV_INFO4_IND, l1_info4_ind},
{ST_L1_F5, EV_INFO4_IND, l1_info4_ind},
{ST_L1_F6, EV_INFO4_IND, l1_info4_ind},
{ST_L1_F8, EV_INFO4_IND, l1_info4_ind},
{ST_L1_F3, EV_TIMER3, l1_timer3},
{ST_L1_F4, EV_TIMER3, l1_timer3},
{ST_L1_F5, EV_TIMER3, l1_timer3},
{ST_L1_F6, EV_TIMER3, l1_timer3},
{ST_L1_F8, EV_TIMER3, l1_timer3},
{ST_L1_F7, EV_TIMER_ACT, l1_timer_act},
{ST_L1_F3, EV_TIMER_DEACT, l1_timer_deact},
{ST_L1_F4, EV_TIMER_DEACT, l1_timer_deact},
{ST_L1_F5, EV_TIMER_DEACT, l1_timer_deact},
{ST_L1_F6, EV_TIMER_DEACT, l1_timer_deact},
{ST_L1_F7, EV_TIMER_DEACT, l1_timer_deact},
{ST_L1_F8, EV_TIMER_DEACT, l1_timer_deact},
};
#define L1S_FN_COUNT (sizeof(L1SFnList)/sizeof(struct FsmNode))
#ifdef HISAX_UINTERFACE
static void
l1_deact_req_u(struct FsmInst *fi, int event, void *arg)
{
struct PStack *st = fi->userdata;
FsmChangeState(fi, ST_L1_RESET);
FsmRestartTimer(&st->l1.timer, 550, EV_TIMER_DEACT, NULL, 2);
test_and_set_bit(FLG_L1_DEACTTIMER, &st->l1.Flags);
st->l1.l1hw(st, HW_ENABLE | REQUEST, NULL);
}
static void
l1_power_up_u(struct FsmInst *fi, int event, void *arg)
{
struct PStack *st = fi->userdata;
FsmRestartTimer(&st->l1.timer, TIMER3_VALUE, EV_TIMER3, NULL, 2);
test_and_set_bit(FLG_L1_T3RUN, &st->l1.Flags);
}
static void
l1_info0_ind(struct FsmInst *fi, int event, void *arg)
{
FsmChangeState(fi, ST_L1_DEACT);
}
static void
l1_activate_u(struct FsmInst *fi, int event, void *arg)
{
struct PStack *st = fi->userdata;
st->l1.l1hw(st, HW_INFO1 | REQUEST, NULL);
}
static struct FsmNode L1UFnList[] __initdata =
{
{ST_L1_RESET, EV_DEACT_IND, l1_deact_req_u},
{ST_L1_DEACT, EV_DEACT_IND, l1_deact_req_u},
{ST_L1_SYNC2, EV_DEACT_IND, l1_deact_req_u},
{ST_L1_TRANS, EV_DEACT_IND, l1_deact_req_u},
{ST_L1_DEACT, EV_PH_ACTIVATE, l1_activate_u},
{ST_L1_DEACT, EV_POWER_UP, l1_power_up_u},
{ST_L1_DEACT, EV_INFO2_IND, l1_info2_ind},
{ST_L1_TRANS, EV_INFO2_IND, l1_info2_ind},
{ST_L1_RESET, EV_DEACT_CNF, l1_info0_ind},
{ST_L1_DEACT, EV_INFO4_IND, l1_info4_ind},
{ST_L1_SYNC2, EV_INFO4_IND, l1_info4_ind},
{ST_L1_RESET, EV_INFO4_IND, l1_info4_ind},
{ST_L1_DEACT, EV_TIMER3, l1_timer3},
{ST_L1_SYNC2, EV_TIMER3, l1_timer3},
{ST_L1_TRANS, EV_TIMER_ACT, l1_timer_act},
{ST_L1_DEACT, EV_TIMER_DEACT, l1_timer_deact},
{ST_L1_SYNC2, EV_TIMER_DEACT, l1_timer_deact},
{ST_L1_RESET, EV_TIMER_DEACT, l1_timer_deact},
};
#define L1U_FN_COUNT (sizeof(L1UFnList)/sizeof(struct FsmNode))
#endif
static void
l1b_activate(struct FsmInst *fi, int event, void *arg)
{
struct PStack *st = fi->userdata;
FsmChangeState(fi, ST_L1_WAIT_ACT);
FsmRestartTimer(&st->l1.timer, st->l1.delay, EV_TIMER_ACT, NULL, 2);
}
static void
l1b_deactivate(struct FsmInst *fi, int event, void *arg)
{
struct PStack *st = fi->userdata;
FsmChangeState(fi, ST_L1_WAIT_DEACT);
FsmRestartTimer(&st->l1.timer, 10, EV_TIMER_DEACT, NULL, 2);
}
static void
l1b_timer_act(struct FsmInst *fi, int event, void *arg)
{
struct PStack *st = fi->userdata;
FsmChangeState(fi, ST_L1_ACTIV);
st->l1.l1l2(st, PH_ACTIVATE | CONFIRM, NULL);
}
static void
l1b_timer_deact(struct FsmInst *fi, int event, void *arg)
{
struct PStack *st = fi->userdata;
FsmChangeState(fi, ST_L1_NULL);
st->l2.l2l1(st, PH_DEACTIVATE | CONFIRM, NULL);
}
static struct FsmNode L1BFnList[] __initdata =
{
{ST_L1_NULL, EV_PH_ACTIVATE, l1b_activate},
{ST_L1_WAIT_ACT, EV_TIMER_ACT, l1b_timer_act},
{ST_L1_ACTIV, EV_PH_DEACTIVATE, l1b_deactivate},
{ST_L1_WAIT_DEACT, EV_TIMER_DEACT, l1b_timer_deact},
};
#define L1B_FN_COUNT (sizeof(L1BFnList)/sizeof(struct FsmNode))
int __init
Isdnl1New(void)
{
int retval;
l1fsm_s.state_count = L1S_STATE_COUNT;
l1fsm_s.event_count = L1_EVENT_COUNT;
l1fsm_s.strEvent = strL1Event;
l1fsm_s.strState = strL1SState;
retval = FsmNew(&l1fsm_s, L1SFnList, L1S_FN_COUNT);
if (retval)
return retval;
l1fsm_b.state_count = L1B_STATE_COUNT;
l1fsm_b.event_count = L1_EVENT_COUNT;
l1fsm_b.strEvent = strL1Event;
l1fsm_b.strState = strL1BState;
retval = FsmNew(&l1fsm_b, L1BFnList, L1B_FN_COUNT);
if (retval) {
FsmFree(&l1fsm_s);
return retval;
}
#ifdef HISAX_UINTERFACE
l1fsm_u.state_count = L1U_STATE_COUNT;
l1fsm_u.event_count = L1_EVENT_COUNT;
l1fsm_u.strEvent = strL1Event;
l1fsm_u.strState = strL1UState;
retval = FsmNew(&l1fsm_u, L1UFnList, L1U_FN_COUNT);
if (retval) {
FsmFree(&l1fsm_s);
FsmFree(&l1fsm_b);
return retval;
}
#endif
return 0;
}
void Isdnl1Free(void)
{
#ifdef HISAX_UINTERFACE
FsmFree(&l1fsm_u);
#endif
FsmFree(&l1fsm_s);
FsmFree(&l1fsm_b);
}
static void
dch_l2l1(struct PStack *st, int pr, void *arg)
{
struct IsdnCardState *cs = (struct IsdnCardState *) st->l1.hardware;
switch (pr) {
case (PH_DATA | REQUEST):
case (PH_PULL | REQUEST):
case (PH_PULL |INDICATION):
st->l1.l1hw(st, pr, arg);
break;
case (PH_ACTIVATE | REQUEST):
if (cs->debug)
debugl1(cs, "PH_ACTIVATE_REQ %s",
st->l1.l1m.fsm->strState[st->l1.l1m.state]);
if (test_bit(FLG_L1_ACTIVATED, &st->l1.Flags))
st->l1.l1l2(st, PH_ACTIVATE | CONFIRM, NULL);
else {
test_and_set_bit(FLG_L1_ACTIVATING, &st->l1.Flags);
FsmEvent(&st->l1.l1m, EV_PH_ACTIVATE, arg);
}
break;
case (PH_TESTLOOP | REQUEST):
if (1 & (long) arg)
debugl1(cs, "PH_TEST_LOOP B1");
if (2 & (long) arg)
debugl1(cs, "PH_TEST_LOOP B2");
if (!(3 & (long) arg))
debugl1(cs, "PH_TEST_LOOP DISABLED");
st->l1.l1hw(st, HW_TESTLOOP | REQUEST, arg);
break;
default:
if (cs->debug)
debugl1(cs, "dch_l2l1 msg %04X unhandled", pr);
break;
}
}
void
l1_msg(struct IsdnCardState *cs, int pr, void *arg) {
struct PStack *st;
st = cs->stlist;
while (st) {
switch(pr) {
case (HW_RESET | INDICATION):
FsmEvent(&st->l1.l1m, EV_RESET_IND, arg);
break;
case (HW_DEACTIVATE | CONFIRM):
FsmEvent(&st->l1.l1m, EV_DEACT_CNF, arg);
break;
case (HW_DEACTIVATE | INDICATION):
FsmEvent(&st->l1.l1m, EV_DEACT_IND, arg);
break;
case (HW_POWERUP | CONFIRM):
FsmEvent(&st->l1.l1m, EV_POWER_UP, arg);
break;
case (HW_RSYNC | INDICATION):
FsmEvent(&st->l1.l1m, EV_RSYNC_IND, arg);
break;
case (HW_INFO2 | INDICATION):
FsmEvent(&st->l1.l1m, EV_INFO2_IND, arg);
break;
case (HW_INFO4_P8 | INDICATION):
case (HW_INFO4_P10 | INDICATION):
FsmEvent(&st->l1.l1m, EV_INFO4_IND, arg);
break;
default:
if (cs->debug)
debugl1(cs, "l1msg %04X unhandled", pr);
break;
}
st = st->next;
}
}
void
l1_msg_b(struct PStack *st, int pr, void *arg) {
switch(pr) {
case (PH_ACTIVATE | REQUEST):
FsmEvent(&st->l1.l1m, EV_PH_ACTIVATE, NULL);
break;
case (PH_DEACTIVATE | REQUEST):
FsmEvent(&st->l1.l1m, EV_PH_DEACTIVATE, NULL);
break;
}
}
void
setstack_HiSax(struct PStack *st, struct IsdnCardState *cs)
{
st->l1.hardware = cs;
st->protocol = cs->protocol;
st->l1.l1m.fsm = &l1fsm_s;
st->l1.l1m.state = ST_L1_F3;
st->l1.Flags = 0;
#ifdef HISAX_UINTERFACE
if (test_bit(FLG_HW_L1_UINT, &cs->HW_Flags)) {
st->l1.l1m.fsm = &l1fsm_u;
st->l1.l1m.state = ST_L1_RESET;
st->l1.Flags = FLG_L1_UINT;
}
#endif
st->l1.l1m.debug = cs->debug;
st->l1.l1m.userdata = st;
st->l1.l1m.userint = 0;
st->l1.l1m.printdebug = l1m_debug;
FsmInitTimer(&st->l1.l1m, &st->l1.timer);
setstack_tei(st);
setstack_manager(st);
st->l1.stlistp = &(cs->stlist);
st->l2.l2l1 = dch_l2l1;
if (cs->setstack_d)
cs->setstack_d(st, cs);
}
void
setstack_l1_B(struct PStack *st)
{
struct IsdnCardState *cs = st->l1.hardware;
st->l1.l1m.fsm = &l1fsm_b;
st->l1.l1m.state = ST_L1_NULL;
st->l1.l1m.debug = cs->debug;
st->l1.l1m.userdata = st;
st->l1.l1m.userint = 0;
st->l1.l1m.printdebug = l1m_debug;
st->l1.Flags = 0;
FsmInitTimer(&st->l1.l1m, &st->l1.timer);
}
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