diff options
Diffstat (limited to 'drivers/isdn/hisax/callc.c')
| -rw-r--r-- | drivers/isdn/hisax/callc.c | 1792 |
1 files changed, 1792 insertions, 0 deletions
diff --git a/drivers/isdn/hisax/callc.c b/drivers/isdn/hisax/callc.c new file mode 100644 index 000000000..9ee063287 --- /dev/null +++ b/drivers/isdn/hisax/callc.c @@ -0,0 +1,1792 @@ +/* $Id: callc.c,v 2.59.2.4 2004/02/11 13:21:32 keil Exp $ + * + * Author Karsten Keil + * 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 + * + * based on the teles driver from Jan den Ouden + * + * Thanks to Jan den Ouden + * Fritz Elfert + * + */ + +#include <linux/module.h> +#include <linux/slab.h> +#include <linux/init.h> +#include "hisax.h" +#include <linux/isdn/capicmd.h> + +const char *lli_revision = "$Revision: 2.59.2.4 $"; + +extern struct IsdnCard cards[]; + +static int init_b_st(struct Channel *chanp, int incoming); +static void release_b_st(struct Channel *chanp); + +static struct Fsm callcfsm; +static int chancount; + +/* experimental REJECT after ALERTING for CALLBACK to beat the 4s delay */ +#define ALERT_REJECT 0 + +/* Value to delay the sending of the first B-channel packet after CONNECT + * here is no value given by ITU, but experience shows that 300 ms will + * work on many networks, if you or your other side is behind local exchanges + * a greater value may be recommented. If the delay is to short the first paket + * will be lost and autodetect on many comercial routers goes wrong ! + * You can adjust this value on runtime with + * hisaxctrl <id> 2 <value> + * value is in milliseconds + */ +#define DEFAULT_B_DELAY 300 + +/* Flags for remembering action done in lli */ + +#define FLG_START_B 0 + +/* + * Find card with given driverId + */ +static inline struct IsdnCardState * +hisax_findcard(int driverid) +{ + int i; + + for (i = 0; i < nrcards; i++) + if (cards[i].cs) + if (cards[i].cs->myid == driverid) + return (cards[i].cs); + return (struct IsdnCardState *) 0; +} + +static __printf(3, 4) void + link_debug(struct Channel *chanp, int direction, char *fmt, ...) +{ + va_list args; + char tmp[16]; + + va_start(args, fmt); + sprintf(tmp, "Ch%d %s ", chanp->chan, + direction ? "LL->HL" : "HL->LL"); + VHiSax_putstatus(chanp->cs, tmp, fmt, args); + va_end(args); +} + +enum { + ST_NULL, /* 0 inactive */ + ST_OUT_DIAL, /* 1 outgoing, SETUP send; awaiting confirm */ + ST_IN_WAIT_LL, /* 2 incoming call received; wait for LL confirm */ + ST_IN_ALERT_SENT, /* 3 incoming call received; ALERT send */ + ST_IN_WAIT_CONN_ACK, /* 4 incoming CONNECT send; awaiting CONN_ACK */ + ST_WAIT_BCONN, /* 5 CONNECT/CONN_ACK received, awaiting b-channel prot. estbl. */ + ST_ACTIVE, /* 6 active, b channel prot. established */ + ST_WAIT_BRELEASE, /* 7 call clear. (initiator), awaiting b channel prot. rel. */ + ST_WAIT_BREL_DISC, /* 8 call clear. (receiver), DISCONNECT req. received */ + ST_WAIT_DCOMMAND, /* 9 call clear. (receiver), awaiting DCHANNEL message */ + ST_WAIT_DRELEASE, /* 10 DISCONNECT sent, awaiting RELEASE */ + ST_WAIT_D_REL_CNF, /* 11 RELEASE sent, awaiting RELEASE confirm */ + ST_IN_PROCEED_SEND, /* 12 incoming call, proceeding send */ +}; + + +#define STATE_COUNT (ST_IN_PROCEED_SEND + 1) + +static char *strState[] = +{ + "ST_NULL", + "ST_OUT_DIAL", + "ST_IN_WAIT_LL", + "ST_IN_ALERT_SENT", + "ST_IN_WAIT_CONN_ACK", + "ST_WAIT_BCONN", + "ST_ACTIVE", + "ST_WAIT_BRELEASE", + "ST_WAIT_BREL_DISC", + "ST_WAIT_DCOMMAND", + "ST_WAIT_DRELEASE", + "ST_WAIT_D_REL_CNF", + "ST_IN_PROCEED_SEND", +}; + +enum { + EV_DIAL, /* 0 */ + EV_SETUP_CNF, /* 1 */ + EV_ACCEPTB, /* 2 */ + EV_DISCONNECT_IND, /* 3 */ + EV_RELEASE, /* 4 */ + EV_LEASED, /* 5 */ + EV_LEASED_REL, /* 6 */ + EV_SETUP_IND, /* 7 */ + EV_ACCEPTD, /* 8 */ + EV_SETUP_CMPL_IND, /* 9 */ + EV_BC_EST, /* 10 */ + EV_WRITEBUF, /* 11 */ + EV_HANGUP, /* 12 */ + EV_BC_REL, /* 13 */ + EV_CINF, /* 14 */ + EV_SUSPEND, /* 15 */ + EV_RESUME, /* 16 */ + EV_NOSETUP_RSP, /* 17 */ + EV_SETUP_ERR, /* 18 */ + EV_CONNECT_ERR, /* 19 */ + EV_PROCEED, /* 20 */ + EV_ALERT, /* 21 */ + EV_REDIR, /* 22 */ +}; + +#define EVENT_COUNT (EV_REDIR + 1) + +static char *strEvent[] = +{ + "EV_DIAL", + "EV_SETUP_CNF", + "EV_ACCEPTB", + "EV_DISCONNECT_IND", + "EV_RELEASE", + "EV_LEASED", + "EV_LEASED_REL", + "EV_SETUP_IND", + "EV_ACCEPTD", + "EV_SETUP_CMPL_IND", + "EV_BC_EST", + "EV_WRITEBUF", + "EV_HANGUP", + "EV_BC_REL", + "EV_CINF", + "EV_SUSPEND", + "EV_RESUME", + "EV_NOSETUP_RSP", + "EV_SETUP_ERR", + "EV_CONNECT_ERR", + "EV_PROCEED", + "EV_ALERT", + "EV_REDIR", +}; + + +static inline void +HL_LL(struct Channel *chanp, int command) +{ + isdn_ctrl ic; + + ic.driver = chanp->cs->myid; + ic.command = command; + ic.arg = chanp->chan; + chanp->cs->iif.statcallb(&ic); +} + +static inline void +lli_deliver_cause(struct Channel *chanp) +{ + isdn_ctrl ic; + + if (!chanp->proc) + return; + if (chanp->proc->para.cause == NO_CAUSE) + return; + ic.driver = chanp->cs->myid; + ic.command = ISDN_STAT_CAUSE; + ic.arg = chanp->chan; + if (chanp->cs->protocol == ISDN_PTYPE_EURO) + sprintf(ic.parm.num, "E%02X%02X", chanp->proc->para.loc & 0x7f, + chanp->proc->para.cause & 0x7f); + else + sprintf(ic.parm.num, "%02X%02X", chanp->proc->para.loc & 0x7f, + chanp->proc->para.cause & 0x7f); + chanp->cs->iif.statcallb(&ic); +} + +static inline void +lli_close(struct FsmInst *fi) +{ + struct Channel *chanp = fi->userdata; + + FsmChangeState(fi, ST_NULL); + chanp->Flags = 0; + chanp->cs->cardmsg(chanp->cs, MDL_INFO_REL, (void *) (long)chanp->chan); +} + +static void +lli_leased_in(struct FsmInst *fi, int event, void *arg) +{ + struct Channel *chanp = fi->userdata; + isdn_ctrl ic; + int ret; + + if (!chanp->leased) + return; + chanp->cs->cardmsg(chanp->cs, MDL_INFO_SETUP, (void *) (long)chanp->chan); + FsmChangeState(fi, ST_IN_WAIT_LL); + if (chanp->debug & 1) + link_debug(chanp, 0, "STAT_ICALL_LEASED"); + ic.driver = chanp->cs->myid; + ic.command = ((chanp->chan < 2) ? ISDN_STAT_ICALL : ISDN_STAT_ICALLW); + ic.arg = chanp->chan; + ic.parm.setup.si1 = 7; + ic.parm.setup.si2 = 0; + ic.parm.setup.plan = 0; + ic.parm.setup.screen = 0; + sprintf(ic.parm.setup.eazmsn, "%d", chanp->chan + 1); + sprintf(ic.parm.setup.phone, "LEASED%d", chanp->cs->myid); + ret = chanp->cs->iif.statcallb(&ic); + if (chanp->debug & 1) + link_debug(chanp, 1, "statcallb ret=%d", ret); + if (!ret) { + chanp->cs->cardmsg(chanp->cs, MDL_INFO_REL, (void *) (long)chanp->chan); + FsmChangeState(fi, ST_NULL); + } +} + + +/* + * Dial out + */ +static void +lli_init_bchan_out(struct FsmInst *fi, int event, void *arg) +{ + struct Channel *chanp = fi->userdata; + + FsmChangeState(fi, ST_WAIT_BCONN); + if (chanp->debug & 1) + link_debug(chanp, 0, "STAT_DCONN"); + HL_LL(chanp, ISDN_STAT_DCONN); + init_b_st(chanp, 0); + chanp->b_st->lli.l4l3(chanp->b_st, DL_ESTABLISH | REQUEST, NULL); +} + +static void +lli_prep_dialout(struct FsmInst *fi, int event, void *arg) +{ + struct Channel *chanp = fi->userdata; + + FsmDelTimer(&chanp->drel_timer, 60); + FsmDelTimer(&chanp->dial_timer, 73); + chanp->l2_active_protocol = chanp->l2_protocol; + chanp->incoming = 0; + chanp->cs->cardmsg(chanp->cs, MDL_INFO_SETUP, (void *) (long)chanp->chan); + if (chanp->leased) { + lli_init_bchan_out(fi, event, arg); + } else { + FsmChangeState(fi, ST_OUT_DIAL); + chanp->d_st->lli.l4l3(chanp->d_st, CC_SETUP | REQUEST, chanp); + } +} + +static void +lli_resume(struct FsmInst *fi, int event, void *arg) +{ + struct Channel *chanp = fi->userdata; + + FsmDelTimer(&chanp->drel_timer, 60); + FsmDelTimer(&chanp->dial_timer, 73); + chanp->l2_active_protocol = chanp->l2_protocol; + chanp->incoming = 0; + chanp->cs->cardmsg(chanp->cs, MDL_INFO_SETUP, (void *) (long)chanp->chan); + if (chanp->leased) { + lli_init_bchan_out(fi, event, arg); + } else { + FsmChangeState(fi, ST_OUT_DIAL); + chanp->d_st->lli.l4l3(chanp->d_st, CC_RESUME | REQUEST, chanp); + } +} + +static void +lli_go_active(struct FsmInst *fi, int event, void *arg) +{ + struct Channel *chanp = fi->userdata; + isdn_ctrl ic; + + + FsmChangeState(fi, ST_ACTIVE); + chanp->data_open = !0; + if (chanp->bcs->conmsg) + strcpy(ic.parm.num, chanp->bcs->conmsg); + else + ic.parm.num[0] = 0; + if (chanp->debug & 1) + link_debug(chanp, 0, "STAT_BCONN %s", ic.parm.num); + ic.driver = chanp->cs->myid; + ic.command = ISDN_STAT_BCONN; + ic.arg = chanp->chan; + chanp->cs->iif.statcallb(&ic); + chanp->cs->cardmsg(chanp->cs, MDL_INFO_CONN, (void *) (long)chanp->chan); +} + + +/* + * RESUME + */ + +/* incoming call */ + +static void +lli_deliver_call(struct FsmInst *fi, int event, void *arg) +{ + struct Channel *chanp = fi->userdata; + isdn_ctrl ic; + int ret; + + chanp->cs->cardmsg(chanp->cs, MDL_INFO_SETUP, (void *) (long)chanp->chan); + /* + * Report incoming calls only once to linklevel, use CallFlags + * which is set to 3 with each broadcast message in isdnl1.c + * and resetted if a interface answered the STAT_ICALL. + */ + if (1) { /* for only one TEI */ + FsmChangeState(fi, ST_IN_WAIT_LL); + if (chanp->debug & 1) + link_debug(chanp, 0, (chanp->chan < 2) ? "STAT_ICALL" : "STAT_ICALLW"); + ic.driver = chanp->cs->myid; + ic.command = ((chanp->chan < 2) ? ISDN_STAT_ICALL : ISDN_STAT_ICALLW); + + ic.arg = chanp->chan; + /* + * No need to return "unknown" for calls without OAD, + * cause that's handled in linklevel now (replaced by '0') + */ + memcpy(&ic.parm.setup, &chanp->proc->para.setup, sizeof(setup_parm)); + ret = chanp->cs->iif.statcallb(&ic); + if (chanp->debug & 1) + link_debug(chanp, 1, "statcallb ret=%d", ret); + + switch (ret) { + case 1: /* OK, someone likes this call */ + FsmDelTimer(&chanp->drel_timer, 61); + FsmChangeState(fi, ST_IN_ALERT_SENT); + chanp->d_st->lli.l4l3(chanp->d_st, CC_ALERTING | REQUEST, chanp->proc); + break; + case 5: /* direct redirect */ + case 4: /* Proceeding desired */ + FsmDelTimer(&chanp->drel_timer, 61); + FsmChangeState(fi, ST_IN_PROCEED_SEND); + chanp->d_st->lli.l4l3(chanp->d_st, CC_PROCEED_SEND | REQUEST, chanp->proc); + if (ret == 5) { + memcpy(&chanp->setup, &ic.parm.setup, sizeof(setup_parm)); + chanp->d_st->lli.l4l3(chanp->d_st, CC_REDIR | REQUEST, chanp->proc); + } + break; + case 2: /* Rejecting Call */ + break; + case 3: /* incomplete number */ + FsmDelTimer(&chanp->drel_timer, 61); + chanp->d_st->lli.l4l3(chanp->d_st, CC_MORE_INFO | REQUEST, chanp->proc); + break; + case 0: /* OK, nobody likes this call */ + default: /* statcallb problems */ + chanp->d_st->lli.l4l3(chanp->d_st, CC_IGNORE | REQUEST, chanp->proc); + chanp->cs->cardmsg(chanp->cs, MDL_INFO_REL, (void *) (long)chanp->chan); + FsmChangeState(fi, ST_NULL); + break; + } + } else { + chanp->d_st->lli.l4l3(chanp->d_st, CC_IGNORE | REQUEST, chanp->proc); + chanp->cs->cardmsg(chanp->cs, MDL_INFO_REL, (void *) (long)chanp->chan); + } +} + +static void +lli_send_dconnect(struct FsmInst *fi, int event, void *arg) +{ + struct Channel *chanp = fi->userdata; + + FsmChangeState(fi, ST_IN_WAIT_CONN_ACK); + chanp->d_st->lli.l4l3(chanp->d_st, CC_SETUP | RESPONSE, chanp->proc); +} + +static void +lli_send_alert(struct FsmInst *fi, int event, void *arg) +{ + struct Channel *chanp = fi->userdata; + + FsmChangeState(fi, ST_IN_ALERT_SENT); + chanp->d_st->lli.l4l3(chanp->d_st, CC_ALERTING | REQUEST, chanp->proc); +} + +static void +lli_send_redir(struct FsmInst *fi, int event, void *arg) +{ + struct Channel *chanp = fi->userdata; + + chanp->d_st->lli.l4l3(chanp->d_st, CC_REDIR | REQUEST, chanp->proc); +} + +static void +lli_init_bchan_in(struct FsmInst *fi, int event, void *arg) +{ + struct Channel *chanp = fi->userdata; + + FsmChangeState(fi, ST_WAIT_BCONN); + if (chanp->debug & 1) + link_debug(chanp, 0, "STAT_DCONN"); + HL_LL(chanp, ISDN_STAT_DCONN); + chanp->l2_active_protocol = chanp->l2_protocol; + chanp->incoming = !0; + init_b_st(chanp, !0); + chanp->b_st->lli.l4l3(chanp->b_st, DL_ESTABLISH | REQUEST, NULL); +} + +static void +lli_setup_rsp(struct FsmInst *fi, int event, void *arg) +{ + struct Channel *chanp = fi->userdata; + + if (chanp->leased) { + lli_init_bchan_in(fi, event, arg); + } else { + FsmChangeState(fi, ST_IN_WAIT_CONN_ACK); +#ifdef WANT_ALERT + chanp->d_st->lli.l4l3(chanp->d_st, CC_ALERTING | REQUEST, chanp->proc); +#endif + chanp->d_st->lli.l4l3(chanp->d_st, CC_SETUP | RESPONSE, chanp->proc); + } +} + +/* Call suspend */ + +static void +lli_suspend(struct FsmInst *fi, int event, void *arg) +{ + struct Channel *chanp = fi->userdata; + + chanp->d_st->lli.l4l3(chanp->d_st, CC_SUSPEND | REQUEST, chanp->proc); +} + +/* Call clearing */ + +static void +lli_leased_hup(struct FsmInst *fi, struct Channel *chanp) +{ + isdn_ctrl ic; + + ic.driver = chanp->cs->myid; + ic.command = ISDN_STAT_CAUSE; + ic.arg = chanp->chan; + sprintf(ic.parm.num, "L0010"); + chanp->cs->iif.statcallb(&ic); + if (chanp->debug & 1) + link_debug(chanp, 0, "STAT_DHUP"); + HL_LL(chanp, ISDN_STAT_DHUP); + lli_close(fi); +} + +static void +lli_disconnect_req(struct FsmInst *fi, int event, void *arg) +{ + struct Channel *chanp = fi->userdata; + + if (chanp->leased) { + lli_leased_hup(fi, chanp); + } else { + FsmChangeState(fi, ST_WAIT_DRELEASE); + if (chanp->proc) + chanp->proc->para.cause = 0x10; /* Normal Call Clearing */ + chanp->d_st->lli.l4l3(chanp->d_st, CC_DISCONNECT | REQUEST, + chanp->proc); + } +} + +static void +lli_disconnect_reject(struct FsmInst *fi, int event, void *arg) +{ + struct Channel *chanp = fi->userdata; + + if (chanp->leased) { + lli_leased_hup(fi, chanp); + } else { + FsmChangeState(fi, ST_WAIT_DRELEASE); + if (chanp->proc) + chanp->proc->para.cause = 0x15; /* Call Rejected */ + chanp->d_st->lli.l4l3(chanp->d_st, CC_DISCONNECT | REQUEST, + chanp->proc); + } +} + +static void +lli_dhup_close(struct FsmInst *fi, int event, void *arg) +{ + struct Channel *chanp = fi->userdata; + + if (chanp->leased) { + lli_leased_hup(fi, chanp); + } else { + if (chanp->debug & 1) + link_debug(chanp, 0, "STAT_DHUP"); + lli_deliver_cause(chanp); + HL_LL(chanp, ISDN_STAT_DHUP); + lli_close(fi); + } +} + +static void +lli_reject_req(struct FsmInst *fi, int event, void *arg) +{ + struct Channel *chanp = fi->userdata; + + if (chanp->leased) { + lli_leased_hup(fi, chanp); + return; + } +#ifndef ALERT_REJECT + if (chanp->proc) + chanp->proc->para.cause = 0x15; /* Call Rejected */ + chanp->d_st->lli.l4l3(chanp->d_st, CC_REJECT | REQUEST, chanp->proc); + lli_dhup_close(fi, event, arg); +#else + FsmRestartTimer(&chanp->drel_timer, 40, EV_HANGUP, NULL, 63); + FsmChangeState(fi, ST_IN_ALERT_SENT); + chanp->d_st->lli.l4l3(chanp->d_st, CC_ALERTING | REQUEST, chanp->proc); +#endif +} + +static void +lli_disconn_bchan(struct FsmInst *fi, int event, void *arg) +{ + struct Channel *chanp = fi->userdata; + + chanp->data_open = 0; + FsmChangeState(fi, ST_WAIT_BRELEASE); + chanp->b_st->lli.l4l3(chanp->b_st, DL_RELEASE | REQUEST, NULL); +} + +static void +lli_start_disc(struct FsmInst *fi, int event, void *arg) +{ + struct Channel *chanp = fi->userdata; + + if (chanp->leased) { + lli_leased_hup(fi, chanp); + } else { + lli_disconnect_req(fi, event, arg); + } +} + +static void +lli_rel_b_disc(struct FsmInst *fi, int event, void *arg) +{ + struct Channel *chanp = fi->userdata; + + release_b_st(chanp); + lli_start_disc(fi, event, arg); +} + +static void +lli_bhup_disc(struct FsmInst *fi, int event, void *arg) +{ + struct Channel *chanp = fi->userdata; + + if (chanp->debug & 1) + link_debug(chanp, 0, "STAT_BHUP"); + HL_LL(chanp, ISDN_STAT_BHUP); + lli_rel_b_disc(fi, event, arg); +} + +static void +lli_bhup_rel_b(struct FsmInst *fi, int event, void *arg) +{ + struct Channel *chanp = fi->userdata; + + FsmChangeState(fi, ST_WAIT_DCOMMAND); + chanp->data_open = 0; + if (chanp->debug & 1) + link_debug(chanp, 0, "STAT_BHUP"); + HL_LL(chanp, ISDN_STAT_BHUP); + release_b_st(chanp); +} + +static void +lli_release_bchan(struct FsmInst *fi, int event, void *arg) +{ + struct Channel *chanp = fi->userdata; + + chanp->data_open = 0; + FsmChangeState(fi, ST_WAIT_BREL_DISC); + chanp->b_st->lli.l4l3(chanp->b_st, DL_RELEASE | REQUEST, NULL); +} + + +static void +lli_rel_b_dhup(struct FsmInst *fi, int event, void *arg) +{ + struct Channel *chanp = fi->userdata; + + release_b_st(chanp); + lli_dhup_close(fi, event, arg); +} + +static void +lli_bhup_dhup(struct FsmInst *fi, int event, void *arg) +{ + struct Channel *chanp = fi->userdata; + + if (chanp->debug & 1) + link_debug(chanp, 0, "STAT_BHUP"); + HL_LL(chanp, ISDN_STAT_BHUP); + lli_rel_b_dhup(fi, event, arg); +} + +static void +lli_abort(struct FsmInst *fi, int event, void *arg) +{ + struct Channel *chanp = fi->userdata; + + chanp->data_open = 0; + chanp->b_st->lli.l4l3(chanp->b_st, DL_RELEASE | REQUEST, NULL); + lli_bhup_dhup(fi, event, arg); +} + +static void +lli_release_req(struct FsmInst *fi, int event, void *arg) +{ + struct Channel *chanp = fi->userdata; + + if (chanp->leased) { + lli_leased_hup(fi, chanp); + } else { + FsmChangeState(fi, ST_WAIT_D_REL_CNF); + chanp->d_st->lli.l4l3(chanp->d_st, CC_RELEASE | REQUEST, + chanp->proc); + } +} + +static void +lli_rel_b_release_req(struct FsmInst *fi, int event, void *arg) +{ + struct Channel *chanp = fi->userdata; + + release_b_st(chanp); + lli_release_req(fi, event, arg); +} + +static void +lli_bhup_release_req(struct FsmInst *fi, int event, void *arg) +{ + struct Channel *chanp = fi->userdata; + + if (chanp->debug & 1) + link_debug(chanp, 0, "STAT_BHUP"); + HL_LL(chanp, ISDN_STAT_BHUP); + lli_rel_b_release_req(fi, event, arg); +} + + +/* processing charge info */ +static void +lli_charge_info(struct FsmInst *fi, int event, void *arg) +{ + struct Channel *chanp = fi->userdata; + isdn_ctrl ic; + + ic.driver = chanp->cs->myid; + ic.command = ISDN_STAT_CINF; + ic.arg = chanp->chan; + sprintf(ic.parm.num, "%d", chanp->proc->para.chargeinfo); + chanp->cs->iif.statcallb(&ic); +} + +/* error procedures */ + +static void +lli_dchan_not_ready(struct FsmInst *fi, int event, void *arg) +{ + struct Channel *chanp = fi->userdata; + + if (chanp->debug & 1) + link_debug(chanp, 0, "STAT_DHUP"); + HL_LL(chanp, ISDN_STAT_DHUP); +} + +static void +lli_no_setup_rsp(struct FsmInst *fi, int event, void *arg) +{ + struct Channel *chanp = fi->userdata; + + if (chanp->debug & 1) + link_debug(chanp, 0, "STAT_DHUP"); + HL_LL(chanp, ISDN_STAT_DHUP); + lli_close(fi); +} + +static void +lli_error(struct FsmInst *fi, int event, void *arg) +{ + FsmChangeState(fi, ST_WAIT_DRELEASE); +} + +static void +lli_failure_l(struct FsmInst *fi, int event, void *arg) +{ + struct Channel *chanp = fi->userdata; + isdn_ctrl ic; + + FsmChangeState(fi, ST_NULL); + ic.driver = chanp->cs->myid; + ic.command = ISDN_STAT_CAUSE; + ic.arg = chanp->chan; + sprintf(ic.parm.num, "L%02X%02X", 0, 0x2f); + chanp->cs->iif.statcallb(&ic); + HL_LL(chanp, ISDN_STAT_DHUP); + chanp->Flags = 0; + chanp->cs->cardmsg(chanp->cs, MDL_INFO_REL, (void *) (long)chanp->chan); +} + +static void +lli_rel_b_fail(struct FsmInst *fi, int event, void *arg) +{ + struct Channel *chanp = fi->userdata; + + release_b_st(chanp); + lli_failure_l(fi, event, arg); +} + +static void +lli_bhup_fail(struct FsmInst *fi, int event, void *arg) +{ + struct Channel *chanp = fi->userdata; + + if (chanp->debug & 1) + link_debug(chanp, 0, "STAT_BHUP"); + HL_LL(chanp, ISDN_STAT_BHUP); + lli_rel_b_fail(fi, event, arg); +} + +static void +lli_failure_a(struct FsmInst *fi, int event, void *arg) +{ + struct Channel *chanp = fi->userdata; + + chanp->data_open = 0; + chanp->b_st->lli.l4l3(chanp->b_st, DL_RELEASE | REQUEST, NULL); + lli_bhup_fail(fi, event, arg); +} + +/* *INDENT-OFF* */ +static struct FsmNode fnlist[] __initdata = +{ + {ST_NULL, EV_DIAL, lli_prep_dialout}, + {ST_NULL, EV_RESUME, lli_resume}, + {ST_NULL, EV_SETUP_IND, lli_deliver_call}, + {ST_NULL, EV_LEASED, lli_leased_in}, + {ST_OUT_DIAL, EV_SETUP_CNF, lli_init_bchan_out}, + {ST_OUT_DIAL, EV_HANGUP, lli_disconnect_req}, + {ST_OUT_DIAL, EV_DISCONNECT_IND, lli_release_req}, + {ST_OUT_DIAL, EV_RELEASE, lli_dhup_close}, + {ST_OUT_DIAL, EV_NOSETUP_RSP, lli_no_setup_rsp}, + {ST_OUT_DIAL, EV_SETUP_ERR, lli_error}, + {ST_IN_WAIT_LL, EV_LEASED_REL, lli_failure_l}, + {ST_IN_WAIT_LL, EV_ACCEPTD, lli_setup_rsp}, + {ST_IN_WAIT_LL, EV_HANGUP, lli_reject_req}, + {ST_IN_WAIT_LL, EV_DISCONNECT_IND, lli_release_req}, + {ST_IN_WAIT_LL, EV_RELEASE, lli_dhup_close}, + {ST_IN_WAIT_LL, EV_SETUP_IND, lli_deliver_call}, + {ST_IN_WAIT_LL, EV_SETUP_ERR, lli_error}, + {ST_IN_ALERT_SENT, EV_SETUP_CMPL_IND, lli_init_bchan_in}, + {ST_IN_ALERT_SENT, EV_ACCEPTD, lli_send_dconnect}, + {ST_IN_ALERT_SENT, EV_HANGUP, lli_disconnect_reject}, + {ST_IN_ALERT_SENT, EV_DISCONNECT_IND, lli_release_req}, + {ST_IN_ALERT_SENT, EV_RELEASE, lli_dhup_close}, + {ST_IN_ALERT_SENT, EV_REDIR, lli_send_redir}, + {ST_IN_PROCEED_SEND, EV_REDIR, lli_send_redir}, + {ST_IN_PROCEED_SEND, EV_ALERT, lli_send_alert}, + {ST_IN_PROCEED_SEND, EV_ACCEPTD, lli_send_dconnect}, + {ST_IN_PROCEED_SEND, EV_HANGUP, lli_disconnect_reject}, + {ST_IN_PROCEED_SEND, EV_DISCONNECT_IND, lli_dhup_close}, + {ST_IN_ALERT_SENT, EV_RELEASE, lli_dhup_close}, + {ST_IN_WAIT_CONN_ACK, EV_SETUP_CMPL_IND, lli_init_bchan_in}, + {ST_IN_WAIT_CONN_ACK, EV_HANGUP, lli_disconnect_req}, + {ST_IN_WAIT_CONN_ACK, EV_DISCONNECT_IND, lli_release_req}, + {ST_IN_WAIT_CONN_ACK, EV_RELEASE, lli_dhup_close}, + {ST_IN_WAIT_CONN_ACK, EV_CONNECT_ERR, lli_error}, + {ST_WAIT_BCONN, EV_BC_EST, lli_go_active}, + {ST_WAIT_BCONN, EV_BC_REL, lli_rel_b_disc}, + {ST_WAIT_BCONN, EV_HANGUP, lli_rel_b_disc}, + {ST_WAIT_BCONN, EV_DISCONNECT_IND, lli_rel_b_release_req}, + {ST_WAIT_BCONN, EV_RELEASE, lli_rel_b_dhup}, + {ST_WAIT_BCONN, EV_LEASED_REL, lli_rel_b_fail}, + {ST_WAIT_BCONN, EV_CINF, lli_charge_info}, + {ST_ACTIVE, EV_CINF, lli_charge_info}, + {ST_ACTIVE, EV_BC_REL, lli_bhup_rel_b}, + {ST_ACTIVE, EV_SUSPEND, lli_suspend}, + {ST_ACTIVE, EV_HANGUP, lli_disconn_bchan}, + {ST_ACTIVE, EV_DISCONNECT_IND, lli_release_bchan}, + {ST_ACTIVE, EV_RELEASE, lli_abort}, + {ST_ACTIVE, EV_LEASED_REL, lli_failure_a}, + {ST_WAIT_BRELEASE, EV_BC_REL, lli_bhup_disc}, + {ST_WAIT_BRELEASE, EV_DISCONNECT_IND, lli_bhup_release_req}, + {ST_WAIT_BRELEASE, EV_RELEASE, lli_bhup_dhup}, + {ST_WAIT_BRELEASE, EV_LEASED_REL, lli_bhup_fail}, + {ST_WAIT_BREL_DISC, EV_BC_REL, lli_bhup_release_req}, + {ST_WAIT_BREL_DISC, EV_RELEASE, lli_bhup_dhup}, + {ST_WAIT_DCOMMAND, EV_HANGUP, lli_start_disc}, + {ST_WAIT_DCOMMAND, EV_DISCONNECT_IND, lli_release_req}, + {ST_WAIT_DCOMMAND, EV_RELEASE, lli_dhup_close}, + {ST_WAIT_DCOMMAND, EV_LEASED_REL, lli_failure_l}, + {ST_WAIT_DRELEASE, EV_RELEASE, lli_dhup_close}, + {ST_WAIT_DRELEASE, EV_DIAL, lli_dchan_not_ready}, + /* ETS 300-104 16.1 */ + {ST_WAIT_D_REL_CNF, EV_RELEASE, lli_dhup_close}, + {ST_WAIT_D_REL_CNF, EV_DIAL, lli_dchan_not_ready}, +}; +/* *INDENT-ON* */ + +int __init +CallcNew(void) +{ + callcfsm.state_count = STATE_COUNT; + callcfsm.event_count = EVENT_COUNT; + callcfsm.strEvent = strEvent; + callcfsm.strState = strState; + return FsmNew(&callcfsm, fnlist, ARRAY_SIZE(fnlist)); +} + +void +CallcFree(void) +{ + FsmFree(&callcfsm); +} + +static void +release_b_st(struct Channel *chanp) +{ + struct PStack *st = chanp->b_st; + + if (test_and_clear_bit(FLG_START_B, &chanp->Flags)) { + chanp->bcs->BC_Close(chanp->bcs); + switch (chanp->l2_active_protocol) { + case (ISDN_PROTO_L2_X75I): + releasestack_isdnl2(st); + break; + case (ISDN_PROTO_L2_HDLC): + case (ISDN_PROTO_L2_HDLC_56K): + case (ISDN_PROTO_L2_TRANS): + case (ISDN_PROTO_L2_MODEM): + case (ISDN_PROTO_L2_FAX): + releasestack_transl2(st); + break; + } + } +} + +static struct Channel +*selectfreechannel(struct PStack *st, int bch) +{ + struct IsdnCardState *cs = st->l1.hardware; + struct Channel *chanp = st->lli.userdata; + int i; + + if (test_bit(FLG_TWO_DCHAN, &cs->HW_Flags)) + i = 1; + else + i = 0; + + if (!bch) { + i = 2; /* virtual channel */ + chanp += 2; + } + + while (i < ((bch) ? cs->chanlimit : (2 + MAX_WAITING_CALLS))) { + if (chanp->fi.state == ST_NULL) + return (chanp); + chanp++; + i++; + } + + if (bch) /* number of channels is limited */ { + i = 2; /* virtual channel */ + chanp = st->lli.userdata; + chanp += i; + while (i < (2 + MAX_WAITING_CALLS)) { + if (chanp->fi.state == ST_NULL) + return (chanp); + chanp++; + i++; + } + } + return (NULL); +} + +static void stat_redir_result(struct IsdnCardState *cs, int chan, ulong result) +{ isdn_ctrl ic; + + ic.driver = cs->myid; + ic.command = ISDN_STAT_REDIR; + ic.arg = chan; + ic.parm.num[0] = result; + cs->iif.statcallb(&ic); +} /* stat_redir_result */ + +static void +dchan_l3l4(struct PStack *st, int pr, void *arg) +{ + struct l3_process *pc = arg; + struct IsdnCardState *cs = st->l1.hardware; + struct Channel *chanp; + + if (!pc) + return; + + if (pr == (CC_SETUP | INDICATION)) { + if (!(chanp = selectfreechannel(pc->st, pc->para.bchannel))) { + pc->para.cause = 0x11; /* User busy */ + pc->st->lli.l4l3(pc->st, CC_REJECT | REQUEST, pc); + } else { + chanp->proc = pc; + pc->chan = chanp; + FsmEvent(&chanp->fi, EV_SETUP_IND, NULL); + } + return; + } + if (!(chanp = pc->chan)) + return; + + switch (pr) { + case (CC_MORE_INFO | INDICATION): + FsmEvent(&chanp->fi, EV_SETUP_IND, NULL); + break; + case (CC_DISCONNECT | INDICATION): + FsmEvent(&chanp->fi, EV_DISCONNECT_IND, NULL); + break; + case (CC_RELEASE | CONFIRM): + FsmEvent(&chanp->fi, EV_RELEASE, NULL); + break; + case (CC_SUSPEND | CONFIRM): + FsmEvent(&chanp->fi, EV_RELEASE, NULL); + break; + case (CC_RESUME | CONFIRM): + FsmEvent(&chanp->fi, EV_SETUP_CNF, NULL); + break; + case (CC_RESUME_ERR): + FsmEvent(&chanp->fi, EV_RELEASE, NULL); + break; + case (CC_RELEASE | INDICATION): + FsmEvent(&chanp->fi, EV_RELEASE, NULL); + break; + case (CC_SETUP_COMPL | INDICATION): + FsmEvent(&chanp->fi, EV_SETUP_CMPL_IND, NULL); + break; + case (CC_SETUP | CONFIRM): + FsmEvent(&chanp->fi, EV_SETUP_CNF, NULL); + break; + case (CC_CHARGE | INDICATION): + FsmEvent(&chanp->fi, EV_CINF, NULL); + break; + case (CC_NOSETUP_RSP): + FsmEvent(&chanp->fi, EV_NOSETUP_RSP, NULL); + break; + case (CC_SETUP_ERR): + FsmEvent(&chanp->fi, EV_SETUP_ERR, NULL); + break; + case (CC_CONNECT_ERR): + FsmEvent(&chanp->fi, EV_CONNECT_ERR, NULL); + break; + case (CC_RELEASE_ERR): + FsmEvent(&chanp->fi, EV_RELEASE, NULL); + break; + case (CC_PROCEED_SEND | INDICATION): + case (CC_PROCEEDING | INDICATION): + case (CC_ALERTING | INDICATION): + case (CC_PROGRESS | INDICATION): + case (CC_NOTIFY | INDICATION): + break; + case (CC_REDIR | INDICATION): + stat_redir_result(cs, chanp->chan, pc->redir_result); + break; + default: + if (chanp->debug & 0x800) { + HiSax_putstatus(chanp->cs, "Ch", + "%d L3->L4 unknown primitiv %#x", + chanp->chan, pr); + } + } +} + +static void +dummy_pstack(struct PStack *st, int pr, void *arg) { + printk(KERN_WARNING"call to dummy_pstack pr=%04x arg %lx\n", pr, (long)arg); +} + +static int +init_PStack(struct PStack **stp) { + *stp = kmalloc(sizeof(struct PStack), GFP_KERNEL); + if (!*stp) + return -ENOMEM; + (*stp)->next = NULL; + (*stp)->l1.l1l2 = dummy_pstack; + (*stp)->l1.l1hw = dummy_pstack; + (*stp)->l1.l1tei = dummy_pstack; + (*stp)->l2.l2tei = dummy_pstack; + (*stp)->l2.l2l1 = dummy_pstack; + (*stp)->l2.l2l3 = dummy_pstack; + (*stp)->l3.l3l2 = dummy_pstack; + (*stp)->l3.l3ml3 = dummy_pstack; + (*stp)->l3.l3l4 = dummy_pstack; + (*stp)->lli.l4l3 = dummy_pstack; + (*stp)->ma.layer = dummy_pstack; + return 0; +} + +static int +init_d_st(struct Channel *chanp) +{ + struct PStack *st; + struct IsdnCardState *cs = chanp->cs; + char tmp[16]; + int err; + + err = init_PStack(&chanp->d_st); + if (err) + return err; + st = chanp->d_st; + st->next = NULL; + HiSax_addlist(cs, st); + setstack_HiSax(st, cs); + st->l2.sap = 0; + st->l2.tei = -1; + st->l2.flag = 0; + test_and_set_bit(FLG_MOD128, &st->l2.flag); + test_and_set_bit(FLG_LAPD, &st->l2.flag); + test_and_set_bit(FLG_ORIG, &st->l2.flag); + st->l2.maxlen = MAX_DFRAME_LEN; + st->l2.window = 1; + st->l2.T200 = 1000; /* 1000 milliseconds */ + st->l2.N200 = 3; /* try 3 times */ + st->l2.T203 = 10000; /* 10000 milliseconds */ + if (test_bit(FLG_TWO_DCHAN, &cs->HW_Flags)) + sprintf(tmp, "DCh%d Q.921 ", chanp->chan); + else + sprintf(tmp, "DCh Q.921 "); + setstack_isdnl2(st, tmp); + setstack_l3dc(st, chanp); + st->lli.userdata = chanp; + st->l3.l3l4 = dchan_l3l4; + + return 0; +} + +static __printf(2, 3) void + callc_debug(struct FsmInst *fi, char *fmt, ...) +{ + va_list args; + struct Channel *chanp = fi->userdata; + char tmp[16]; + + va_start(args, fmt); + sprintf(tmp, "Ch%d callc ", chanp->chan); + VHiSax_putstatus(chanp->cs, tmp, fmt, args); + va_end(args); +} + +static int +init_chan(int chan, struct IsdnCardState *csta) +{ + struct Channel *chanp = csta->channel + chan; + int err; + + chanp->cs = csta; + chanp->bcs = csta->bcs + chan; + chanp->chan = chan; + chanp->incoming = 0; + chanp->debug = 0; + chanp->Flags = 0; + chanp->leased = 0; + err = init_PStack(&chanp->b_st); + if (err) + return err; + chanp->b_st->l1.delay = DEFAULT_B_DELAY; + chanp->fi.fsm = &callcfsm; + chanp->fi.state = ST_NULL; + chanp->fi.debug = 0; + chanp->fi.userdata = chanp; + chanp->fi.printdebug = callc_debug; + FsmInitTimer(&chanp->fi, &chanp->dial_timer); + FsmInitTimer(&chanp->fi, &chanp->drel_timer); + if (!chan || (test_bit(FLG_TWO_DCHAN, &csta->HW_Flags) && chan < 2)) { + err = init_d_st(chanp); + if (err) + return err; + } else { + chanp->d_st = csta->channel->d_st; + } + chanp->data_open = 0; + return 0; +} + +int +CallcNewChan(struct IsdnCardState *csta) { + int i, err; + + chancount += 2; + err = init_chan(0, csta); + if (err) + return err; + err = init_chan(1, csta); + if (err) + return err; + printk(KERN_INFO "HiSax: 2 channels added\n"); + + for (i = 0; i < MAX_WAITING_CALLS; i++) { + err = init_chan(i + 2, csta); + if (err) + return err; + } + printk(KERN_INFO "HiSax: MAX_WAITING_CALLS added\n"); + if (test_bit(FLG_PTP, &csta->channel->d_st->l2.flag)) { + printk(KERN_INFO "LAYER2 WATCHING ESTABLISH\n"); + csta->channel->d_st->lli.l4l3(csta->channel->d_st, + DL_ESTABLISH | REQUEST, NULL); + } + return (0); +} + +static void +release_d_st(struct Channel *chanp) +{ + struct PStack *st = chanp->d_st; + + if (!st) + return; + releasestack_isdnl2(st); + releasestack_isdnl3(st); + HiSax_rmlist(st->l1.hardware, st); + kfree(st); + chanp->d_st = NULL; +} + +void +CallcFreeChan(struct IsdnCardState *csta) +{ + int i; + + for (i = 0; i < 2; i++) { + FsmDelTimer(&csta->channel[i].drel_timer, 74); + FsmDelTimer(&csta->channel[i].dial_timer, 75); + if (i || test_bit(FLG_TWO_DCHAN, &csta->HW_Flags)) + release_d_st(csta->channel + i); + if (csta->channel[i].b_st) { + release_b_st(csta->channel + i); + kfree(csta->channel[i].b_st); + csta->channel[i].b_st = NULL; + } else + printk(KERN_WARNING "CallcFreeChan b_st ch%d already freed\n", i); + if (i || test_bit(FLG_TWO_DCHAN, &csta->HW_Flags)) { + release_d_st(csta->channel + i); + } else + csta->channel[i].d_st = NULL; + } +} + +static void +lldata_handler(struct PStack *st, int pr, void *arg) +{ + struct Channel *chanp = (struct Channel *) st->lli.userdata; + struct sk_buff *skb = arg; + + switch (pr) { + case (DL_DATA | INDICATION): + if (chanp->data_open) { + if (chanp->debug & 0x800) + link_debug(chanp, 0, "lldata: %d", skb->len); + chanp->cs->iif.rcvcallb_skb(chanp->cs->myid, chanp->chan, skb); + } else { + link_debug(chanp, 0, "lldata: channel not open"); + dev_kfree_skb(skb); + } + break; + case (DL_ESTABLISH | INDICATION): + case (DL_ESTABLISH | CONFIRM): + FsmEvent(&chanp->fi, EV_BC_EST, NULL); + break; + case (DL_RELEASE | INDICATION): + case (DL_RELEASE | CONFIRM): + FsmEvent(&chanp->fi, EV_BC_REL, NULL); + break; + default: + printk(KERN_WARNING "lldata_handler unknown primitive %#x\n", + pr); + break; + } +} + +static void +lltrans_handler(struct PStack *st, int pr, void *arg) +{ + struct Channel *chanp = (struct Channel *) st->lli.userdata; + struct sk_buff *skb = arg; + + switch (pr) { + case (PH_DATA | INDICATION): + if (chanp->data_open) { + if (chanp->debug & 0x800) + link_debug(chanp, 0, "lltrans: %d", skb->len); + chanp->cs->iif.rcvcallb_skb(chanp->cs->myid, chanp->chan, skb); + } else { + link_debug(chanp, 0, "lltrans: channel not open"); + dev_kfree_skb(skb); + } + break; + case (PH_ACTIVATE | INDICATION): + case (PH_ACTIVATE | CONFIRM): + FsmEvent(&chanp->fi, EV_BC_EST, NULL); + break; + case (PH_DEACTIVATE | INDICATION): + case (PH_DEACTIVATE | CONFIRM): + FsmEvent(&chanp->fi, EV_BC_REL, NULL); + break; + default: + printk(KERN_WARNING "lltrans_handler unknown primitive %#x\n", + pr); + break; + } +} + +void +lli_writewakeup(struct PStack *st, int len) +{ + struct Channel *chanp = st->lli.userdata; + isdn_ctrl ic; + + if (chanp->debug & 0x800) + link_debug(chanp, 0, "llwakeup: %d", len); + ic.driver = chanp->cs->myid; + ic.command = ISDN_STAT_BSENT; + ic.arg = chanp->chan; + ic.parm.length = len; + chanp->cs->iif.statcallb(&ic); +} + +static int +init_b_st(struct Channel *chanp, int incoming) +{ + struct PStack *st = chanp->b_st; + struct IsdnCardState *cs = chanp->cs; + char tmp[16]; + + st->l1.hardware = cs; + if (chanp->leased) + st->l1.bc = chanp->chan & 1; + else + st->l1.bc = chanp->proc->para.bchannel - 1; + switch (chanp->l2_active_protocol) { + case (ISDN_PROTO_L2_X75I): + case (ISDN_PROTO_L2_HDLC): + st->l1.mode = L1_MODE_HDLC; + break; + case (ISDN_PROTO_L2_HDLC_56K): + st->l1.mode = L1_MODE_HDLC_56K; + break; + case (ISDN_PROTO_L2_TRANS): + st->l1.mode = L1_MODE_TRANS; + break; + case (ISDN_PROTO_L2_MODEM): + st->l1.mode = L1_MODE_V32; + break; + case (ISDN_PROTO_L2_FAX): + st->l1.mode = L1_MODE_FAX; + break; + } + chanp->bcs->conmsg = NULL; + if (chanp->bcs->BC_SetStack(st, chanp->bcs)) + return (-1); + st->l2.flag = 0; + test_and_set_bit(FLG_LAPB, &st->l2.flag); + st->l2.maxlen = MAX_DATA_SIZE; + if (!incoming) + test_and_set_bit(FLG_ORIG, &st->l2.flag); + st->l2.T200 = 1000; /* 1000 milliseconds */ + st->l2.window = 7; + st->l2.N200 = 4; /* try 4 times */ + st->l2.T203 = 5000; /* 5000 milliseconds */ + st->l3.debug = 0; + switch (chanp->l2_active_protocol) { + case (ISDN_PROTO_L2_X75I): + sprintf(tmp, "Ch%d X.75", chanp->chan); + setstack_isdnl2(st, tmp); + setstack_l3bc(st, chanp); + st->l2.l2l3 = lldata_handler; + st->lli.userdata = chanp; + test_and_clear_bit(FLG_LLI_L1WAKEUP, &st->lli.flag); + test_and_set_bit(FLG_LLI_L2WAKEUP, &st->lli.flag); + st->l2.l2m.debug = chanp->debug & 16; + st->l2.debug = chanp->debug & 64; + break; + case (ISDN_PROTO_L2_HDLC): + case (ISDN_PROTO_L2_HDLC_56K): + case (ISDN_PROTO_L2_TRANS): + case (ISDN_PROTO_L2_MODEM): + case (ISDN_PROTO_L2_FAX): + st->l1.l1l2 = lltrans_handler; + st->lli.userdata = chanp; + test_and_set_bit(FLG_LLI_L1WAKEUP, &st->lli.flag); + test_and_clear_bit(FLG_LLI_L2WAKEUP, &st->lli.flag); + setstack_transl2(st); + setstack_l3bc(st, chanp); + break; + } + test_and_set_bit(FLG_START_B, &chanp->Flags); + return (0); +} + +static void +leased_l4l3(struct PStack *st, int pr, void *arg) +{ + struct Channel *chanp = (struct Channel *) st->lli.userdata; + struct sk_buff *skb = arg; + + switch (pr) { + case (DL_DATA | REQUEST): + link_debug(chanp, 0, "leased line d-channel DATA"); + dev_kfree_skb(skb); + break; + case (DL_ESTABLISH | REQUEST): + st->l2.l2l1(st, PH_ACTIVATE | REQUEST, NULL); + break; + case (DL_RELEASE | REQUEST): + break; + default: + printk(KERN_WARNING "transd_l4l3 unknown primitive %#x\n", + pr); + break; + } +} + +static void +leased_l1l2(struct PStack *st, int pr, void *arg) +{ + struct Channel *chanp = (struct Channel *) st->lli.userdata; + struct sk_buff *skb = arg; + int i, event = EV_LEASED_REL; + + switch (pr) { + case (PH_DATA | INDICATION): + link_debug(chanp, 0, "leased line d-channel DATA"); + dev_kfree_skb(skb); + break; + case (PH_ACTIVATE | INDICATION): + case (PH_ACTIVATE | CONFIRM): + event = EV_LEASED; + /* fall through */ + case (PH_DEACTIVATE | INDICATION): + case (PH_DEACTIVATE | CONFIRM): + if (test_bit(FLG_TWO_DCHAN, &chanp->cs->HW_Flags)) + i = 1; + else + i = 0; + while (i < 2) { + FsmEvent(&chanp->fi, event, NULL); + chanp++; + i++; + } + break; + default: + printk(KERN_WARNING + "transd_l1l2 unknown primitive %#x\n", pr); + break; + } +} + +static void +distr_debug(struct IsdnCardState *csta, int debugflags) +{ + int i; + struct Channel *chanp = csta->channel; + + for (i = 0; i < (2 + MAX_WAITING_CALLS); i++) { + chanp[i].debug = debugflags; + chanp[i].fi.debug = debugflags & 2; + chanp[i].d_st->l2.l2m.debug = debugflags & 8; + chanp[i].b_st->l2.l2m.debug = debugflags & 0x10; + chanp[i].d_st->l2.debug = debugflags & 0x20; + chanp[i].b_st->l2.debug = debugflags & 0x40; + chanp[i].d_st->l3.l3m.debug = debugflags & 0x80; + chanp[i].b_st->l3.l3m.debug = debugflags & 0x100; + chanp[i].b_st->ma.tei_m.debug = debugflags & 0x200; + chanp[i].b_st->ma.debug = debugflags & 0x200; + chanp[i].d_st->l1.l1m.debug = debugflags & 0x1000; + chanp[i].b_st->l1.l1m.debug = debugflags & 0x2000; + } + if (debugflags & 4) + csta->debug |= DEB_DLOG_HEX; + else + csta->debug &= ~DEB_DLOG_HEX; +} + +static char tmpbuf[256]; + +static void +capi_debug(struct Channel *chanp, capi_msg *cm) +{ + char *t = tmpbuf; + + t += QuickHex(t, (u_char *)cm, (cm->Length > 50) ? 50 : cm->Length); + t--; + *t = 0; + HiSax_putstatus(chanp->cs, "Ch", "%d CAPIMSG %s", chanp->chan, tmpbuf); +} + +static void +lli_got_fac_req(struct Channel *chanp, capi_msg *cm) { + if ((cm->para[0] != 3) || (cm->para[1] != 0)) + return; + if (cm->para[2] < 3) + return; + if (cm->para[4] != 0) + return; + switch (cm->para[3]) { + case 4: /* Suspend */ + strncpy(chanp->setup.phone, &cm->para[5], cm->para[5] + 1); + FsmEvent(&chanp->fi, EV_SUSPEND, cm); + break; + case 5: /* Resume */ + strncpy(chanp->setup.phone, &cm->para[5], cm->para[5] + 1); + if (chanp->fi.state == ST_NULL) { + FsmEvent(&chanp->fi, EV_RESUME, cm); + } else { + FsmDelTimer(&chanp->dial_timer, 72); + FsmAddTimer(&chanp->dial_timer, 80, EV_RESUME, cm, 73); + } + break; + } +} + +static void +lli_got_manufacturer(struct Channel *chanp, struct IsdnCardState *cs, capi_msg *cm) { + if ((cs->typ == ISDN_CTYPE_ELSA) || (cs->typ == ISDN_CTYPE_ELSA_PNP) || + (cs->typ == ISDN_CTYPE_ELSA_PCI)) { + if (cs->hw.elsa.MFlag) { + cs->cardmsg(cs, CARD_AUX_IND, cm->para); + } + } +} + + +/***************************************************************/ +/* Limit the available number of channels for the current card */ +/***************************************************************/ +static int +set_channel_limit(struct IsdnCardState *cs, int chanmax) +{ + isdn_ctrl ic; + int i, ii; + + if ((chanmax < 0) || (chanmax > 2)) + return (-EINVAL); + cs->chanlimit = 0; + for (ii = 0; ii < 2; ii++) { + ic.driver = cs->myid; + ic.command = ISDN_STAT_DISCH; + ic.arg = ii; + if (ii >= chanmax) + ic.parm.num[0] = 0; /* disabled */ + else + ic.parm.num[0] = 1; /* enabled */ + i = cs->iif.statcallb(&ic); + if (i) return (-EINVAL); + if (ii < chanmax) + cs->chanlimit++; + } + return (0); +} /* set_channel_limit */ + +int +HiSax_command(isdn_ctrl *ic) +{ + struct IsdnCardState *csta = hisax_findcard(ic->driver); + struct PStack *st; + struct Channel *chanp; + int i; + u_int num; + + if (!csta) { + printk(KERN_ERR + "HiSax: if_command %d called with invalid driverId %d!\n", + ic->command, ic->driver); + return -ENODEV; + } + switch (ic->command) { + case (ISDN_CMD_SETEAZ): + chanp = csta->channel + ic->arg; + break; + case (ISDN_CMD_SETL2): + chanp = csta->channel + (ic->arg & 0xff); + if (chanp->debug & 1) + link_debug(chanp, 1, "SETL2 card %d %ld", + csta->cardnr + 1, ic->arg >> 8); + chanp->l2_protocol = ic->arg >> 8; + break; + case (ISDN_CMD_SETL3): + chanp = csta->channel + (ic->arg & 0xff); + if (chanp->debug & 1) + link_debug(chanp, 1, "SETL3 card %d %ld", + csta->cardnr + 1, ic->arg >> 8); + chanp->l3_protocol = ic->arg >> 8; + break; + case (ISDN_CMD_DIAL): + chanp = csta->channel + (ic->arg & 0xff); + if (chanp->debug & 1) + link_debug(chanp, 1, "DIAL %s -> %s (%d,%d)", + ic->parm.setup.eazmsn, ic->parm.setup.phone, + ic->parm.setup.si1, ic->parm.setup.si2); + memcpy(&chanp->setup, &ic->parm.setup, sizeof(setup_parm)); + if (!strcmp(chanp->setup.eazmsn, "0")) + chanp->setup.eazmsn[0] = '\0'; + /* this solution is dirty and may be change, if + * we make a callreference based callmanager */ + if (chanp->fi.state == ST_NULL) { + FsmEvent(&chanp->fi, EV_DIAL, NULL); + } else { + FsmDelTimer(&chanp->dial_timer, 70); + FsmAddTimer(&chanp->dial_timer, 50, EV_DIAL, NULL, 71); + } + break; + case (ISDN_CMD_ACCEPTB): + chanp = csta->channel + ic->arg; + if (chanp->debug & 1) + link_debug(chanp, 1, "ACCEPTB"); + FsmEvent(&chanp->fi, EV_ACCEPTB, NULL); + break; + case (ISDN_CMD_ACCEPTD): + chanp = csta->channel + ic->arg; + memcpy(&chanp->setup, &ic->parm.setup, sizeof(setup_parm)); + if (chanp->debug & 1) + link_debug(chanp, 1, "ACCEPTD"); + FsmEvent(&chanp->fi, EV_ACCEPTD, NULL); + break; + case (ISDN_CMD_HANGUP): + chanp = csta->channel + ic->arg; + if (chanp->debug & 1) + link_debug(chanp, 1, "HANGUP"); + FsmEvent(&chanp->fi, EV_HANGUP, NULL); + break; + case (CAPI_PUT_MESSAGE): + chanp = csta->channel + ic->arg; + if (chanp->debug & 1) + capi_debug(chanp, &ic->parm.cmsg); + if (ic->parm.cmsg.Length < 8) + break; + switch (ic->parm.cmsg.Command) { + case CAPI_FACILITY: + if (ic->parm.cmsg.Subcommand == CAPI_REQ) + lli_got_fac_req(chanp, &ic->parm.cmsg); + break; + case CAPI_MANUFACTURER: + if (ic->parm.cmsg.Subcommand == CAPI_REQ) + lli_got_manufacturer(chanp, csta, &ic->parm.cmsg); + break; + default: + break; + } + break; + case (ISDN_CMD_IOCTL): + switch (ic->arg) { + case (0): + num = *(unsigned int *) ic->parm.num; + HiSax_reportcard(csta->cardnr, num); + break; + case (1): + num = *(unsigned int *) ic->parm.num; + distr_debug(csta, num); + printk(KERN_DEBUG "HiSax: debugging flags card %d set to %x\n", + csta->cardnr + 1, num); + HiSax_putstatus(csta, "debugging flags ", + "card %d set to %x", csta->cardnr + 1, num); + break; + case (2): + num = *(unsigned int *) ic->parm.num; + csta->channel[0].b_st->l1.delay = num; + csta->channel[1].b_st->l1.delay = num; + HiSax_putstatus(csta, "delay ", "card %d set to %d ms", + csta->cardnr + 1, num); + printk(KERN_DEBUG "HiSax: delay card %d set to %d ms\n", + csta->cardnr + 1, num); + break; + case (5): /* set card in leased mode */ + num = *(unsigned int *) ic->parm.num; + if ((num < 1) || (num > 2)) { + HiSax_putstatus(csta, "Set LEASED ", + "wrong channel %d", num); + printk(KERN_WARNING "HiSax: Set LEASED wrong channel %d\n", + num); + } else { + num--; + chanp = csta->channel + num; + chanp->leased = 1; + HiSax_putstatus(csta, "Card", + "%d channel %d set leased mode\n", + csta->cardnr + 1, num + 1); + chanp->d_st->l1.l1l2 = leased_l1l2; + chanp->d_st->lli.l4l3 = leased_l4l3; + chanp->d_st->lli.l4l3(chanp->d_st, + DL_ESTABLISH | REQUEST, NULL); + } + break; + case (6): /* set B-channel test loop */ + num = *(unsigned int *) ic->parm.num; + if (csta->stlist) + csta->stlist->l2.l2l1(csta->stlist, + PH_TESTLOOP | REQUEST, (void *) (long)num); + break; + case (7): /* set card in PTP mode */ + num = *(unsigned int *) ic->parm.num; + if (test_bit(FLG_TWO_DCHAN, &csta->HW_Flags)) { + printk(KERN_ERR "HiSax PTP mode only with one TEI possible\n"); + } else if (num) { + test_and_set_bit(FLG_PTP, &csta->channel[0].d_st->l2.flag); + test_and_set_bit(FLG_FIXED_TEI, &csta->channel[0].d_st->l2.flag); + csta->channel[0].d_st->l2.tei = 0; + HiSax_putstatus(csta, "set card ", "in PTP mode"); + printk(KERN_DEBUG "HiSax: set card in PTP mode\n"); + printk(KERN_INFO "LAYER2 WATCHING ESTABLISH\n"); + csta->channel[0].d_st->lli.l4l3(csta->channel[0].d_st, + DL_ESTABLISH | REQUEST, NULL); + } else { + test_and_clear_bit(FLG_PTP, &csta->channel[0].d_st->l2.flag); + test_and_clear_bit(FLG_FIXED_TEI, &csta->channel[0].d_st->l2.flag); + HiSax_putstatus(csta, "set card ", "in PTMP mode"); + printk(KERN_DEBUG "HiSax: set card in PTMP mode\n"); + } + break; + case (8): /* set card in FIXED TEI mode */ + num = *(unsigned int *)ic->parm.num; + chanp = csta->channel + (num & 1); + num = num >> 1; + if (num == 127) { + test_and_clear_bit(FLG_FIXED_TEI, &chanp->d_st->l2.flag); + chanp->d_st->l2.tei = -1; + HiSax_putstatus(csta, "set card ", "in VAR TEI mode"); + printk(KERN_DEBUG "HiSax: set card in VAR TEI mode\n"); + } else { + test_and_set_bit(FLG_FIXED_TEI, &chanp->d_st->l2.flag); + chanp->d_st->l2.tei = num; + HiSax_putstatus(csta, "set card ", "in FIXED TEI (%d) mode", num); + printk(KERN_DEBUG "HiSax: set card in FIXED TEI (%d) mode\n", + num); + } + chanp->d_st->lli.l4l3(chanp->d_st, + DL_ESTABLISH | REQUEST, NULL); + break; + case (11): + num = csta->debug & DEB_DLOG_HEX; + csta->debug = *(unsigned int *) ic->parm.num; + csta->debug |= num; + HiSax_putstatus(cards[0].cs, "l1 debugging ", + "flags card %d set to %x", + csta->cardnr + 1, csta->debug); + printk(KERN_DEBUG "HiSax: l1 debugging flags card %d set to %x\n", + csta->cardnr + 1, csta->debug); + break; + case (13): + csta->channel[0].d_st->l3.debug = *(unsigned int *) ic->parm.num; + csta->channel[1].d_st->l3.debug = *(unsigned int *) ic->parm.num; + HiSax_putstatus(cards[0].cs, "l3 debugging ", + "flags card %d set to %x\n", csta->cardnr + 1, + *(unsigned int *) ic->parm.num); + printk(KERN_DEBUG "HiSax: l3 debugging flags card %d set to %x\n", + csta->cardnr + 1, *(unsigned int *) ic->parm.num); + break; + case (10): + i = *(unsigned int *) ic->parm.num; + return (set_channel_limit(csta, i)); + default: + if (csta->auxcmd) + return (csta->auxcmd(csta, ic)); + printk(KERN_DEBUG "HiSax: invalid ioctl %d\n", + (int) ic->arg); + return (-EINVAL); + } + break; + + case (ISDN_CMD_PROCEED): + chanp = csta->channel + ic->arg; + if (chanp->debug & 1) + link_debug(chanp, 1, "PROCEED"); + FsmEvent(&chanp->fi, EV_PROCEED, NULL); + break; + + case (ISDN_CMD_ALERT): + chanp = csta->channel + ic->arg; + if (chanp->debug & 1) + link_debug(chanp, 1, "ALERT"); + FsmEvent(&chanp->fi, EV_ALERT, NULL); + break; + + case (ISDN_CMD_REDIR): + chanp = csta->channel + ic->arg; + if (chanp->debug & 1) + link_debug(chanp, 1, "REDIR"); + memcpy(&chanp->setup, &ic->parm.setup, sizeof(setup_parm)); + FsmEvent(&chanp->fi, EV_REDIR, NULL); + break; + + /* protocol specific io commands */ + case (ISDN_CMD_PROT_IO): + for (st = csta->stlist; st; st = st->next) + if (st->protocol == (ic->arg & 0xFF)) + return (st->lli.l4l3_proto(st, ic)); + return (-EINVAL); + break; + default: + if (csta->auxcmd) + return (csta->auxcmd(csta, ic)); + return (-EINVAL); + } + return (0); +} + +int +HiSax_writebuf_skb(int id, int chan, int ack, struct sk_buff *skb) +{ + struct IsdnCardState *csta = hisax_findcard(id); + struct Channel *chanp; + struct PStack *st; + int len = skb->len; + struct sk_buff *nskb; + + if (!csta) { + printk(KERN_ERR + "HiSax: if_sendbuf called with invalid driverId!\n"); + return -ENODEV; + } + chanp = csta->channel + chan; + st = chanp->b_st; + if (!chanp->data_open) { + link_debug(chanp, 1, "writebuf: channel not open"); + return -EIO; + } + if (len > MAX_DATA_SIZE) { + link_debug(chanp, 1, "writebuf: packet too large (%d bytes)", len); + printk(KERN_WARNING "HiSax_writebuf: packet too large (%d bytes) !\n", + len); + return -EINVAL; + } + if (len) { + if ((len + chanp->bcs->tx_cnt) > MAX_DATA_MEM) { + /* Must return 0 here, since this is not an error + * but a temporary lack of resources. + */ + if (chanp->debug & 0x800) + link_debug(chanp, 1, "writebuf: no buffers for %d bytes", len); + return 0; + } else if (chanp->debug & 0x800) + link_debug(chanp, 1, "writebuf %d/%d/%d", len, chanp->bcs->tx_cnt, MAX_DATA_MEM); + nskb = skb_clone(skb, GFP_ATOMIC); + if (nskb) { + nskb->truesize = nskb->len; + if (!ack) + nskb->pkt_type = PACKET_NOACK; + if (chanp->l2_active_protocol == ISDN_PROTO_L2_X75I) + st->l3.l3l2(st, DL_DATA | REQUEST, nskb); + else { + chanp->bcs->tx_cnt += len; + st->l2.l2l1(st, PH_DATA | REQUEST, nskb); + } + dev_kfree_skb(skb); + } else + len = 0; + } + return (len); +} |