/*---------------------------------------------------------------------------* * Data destinator switch for write channels - 0, 2 and 4 *---------------------------------------------------------------------------*/ struct mbuf * ihfc_getmbuf (ihfc_sc_t *sc, u_char chan) { register struct mbuf *m; i4b_trace_hdr_t hdr; if (chan < 2) { IF_DEQUEUE(&S_IFQUEUE, m); if((S_TRACE & TRACE_D_TX) && m) { hdr.count = ++S_DTRACECOUNT; hdr.dir = FROM_TE; hdr.type = TRC_CH_D; hdr.unit = S_I4BUNIT; MICROTIME(hdr.time); i4b_l1_trace_ind(&hdr, m->m_len, m->m_data); } } else { IF_DEQUEUE(&S_IFQUEUE, m); if (!m) { S_BDRVLINK->bch_tx_queue_empty(S_BDRVLINK->unit); IF_DEQUEUE(&S_IFQUEUE, m); } if (m) { if(!i4b_l1_bchan_tel_silence(m->m_data, m->m_len)) { S_BDRVLINK->bch_activity(S_BDRVLINK->unit, ACT_TX); } S_BYTES += m->m_len; if(S_TRACE & TRACE_B_TX) { hdr.count = ++S_BTRACECOUNT; hdr.dir = FROM_TE; hdr.type = (chan < 4) ? TRC_CH_B1 : TRC_CH_B2; hdr.unit = S_I4BUNIT; MICROTIME(hdr.time); i4b_l1_trace_ind(&hdr, m->m_len, m->m_data); } } } return(m); }
/*---------------------------------------------------------------------------* * start transmission on a b channel *---------------------------------------------------------------------------*/ static void isic_bchannel_start(int unit, int h_chan) { struct l1_softc *sc = &l1_sc[unit]; l1_bchan_state_t *chan = &sc->sc_chan[h_chan]; int next_len; int len; int activity = -1; int cmd = 0; crit_enter(); if(chan->state & HSCX_TX_ACTIVE) /* already running ? */ { crit_exit(); return; /* yes, leave */ } /* get next mbuf from queue */ IF_DEQUEUE(&chan->tx_queue, chan->out_mbuf_head); if(chan->out_mbuf_head == NULL) /* queue empty ? */ { crit_exit(); return; /* yes, exit */ } /* init current mbuf values */ chan->out_mbuf_cur = chan->out_mbuf_head; chan->out_mbuf_cur_len = chan->out_mbuf_cur->m_len; chan->out_mbuf_cur_ptr = chan->out_mbuf_cur->m_data; /* activity indicator for timeout handling */ if(chan->bprot == BPROT_NONE) { if(!(i4b_l1_bchan_tel_silence(chan->out_mbuf_cur->m_data, chan->out_mbuf_cur->m_len))) activity = ACT_TX; } else { activity = ACT_TX; } chan->state |= HSCX_TX_ACTIVE; /* we start transmitting */ if(sc->sc_trace & TRACE_B_TX) /* if trace, send mbuf to trace dev */ { i4b_trace_hdr_t hdr; hdr.unit = L0ISICUNIT(unit); hdr.type = (h_chan == HSCX_CH_A ? TRC_CH_B1 : TRC_CH_B2); hdr.dir = FROM_TE; hdr.count = ++sc->sc_trace_bcount; MICROTIME(hdr.time); i4b_l1_trace_ind(&hdr, chan->out_mbuf_cur->m_len, chan->out_mbuf_cur->m_data); } len = 0; /* # of chars put into HSCX tx fifo this time */ /* * fill the HSCX tx fifo with data from the current mbuf. if * current mbuf holds less data than HSCX fifo length, try to * get the next mbuf from (a possible) mbuf chain. if there is * not enough data in a single mbuf or in a chain, then this * is the last mbuf and we tell the HSCX that it has to send * CRC and closing flag */ while((len < sc->sc_bfifolen) && chan->out_mbuf_cur) { /* * put as much data into the HSCX fifo as is * available from the current mbuf */ if((len + chan->out_mbuf_cur_len) >= sc->sc_bfifolen) next_len = sc->sc_bfifolen - len; else next_len = chan->out_mbuf_cur_len; #ifdef NOTDEF kprintf("b:mh=%x, mc=%x, mcp=%x, mcl=%d l=%d nl=%d # ", chan->out_mbuf_head, chan->out_mbuf_cur, chan->out_mbuf_cur_ptr, chan->out_mbuf_cur_len, len, next_len); #endif /* wait for tx fifo write enabled */ isic_hscx_waitxfw(sc, h_chan); /* write what we have from current mbuf to HSCX fifo */ HSCX_WRFIFO(h_chan, chan->out_mbuf_cur_ptr, next_len); len += next_len; /* update # of bytes written */ chan->txcount += next_len; /* statistics */ chan->out_mbuf_cur_ptr += next_len; /* data ptr */ chan->out_mbuf_cur_len -= next_len; /* data len */ /* * in case the current mbuf (of a possible chain) data * has been put into the fifo, check if there is a next * mbuf in the chain. If there is one, get ptr to it * and update the data ptr and the length */ if((chan->out_mbuf_cur_len <= 0) && ((chan->out_mbuf_cur = chan->out_mbuf_cur->m_next) != NULL)) { chan->out_mbuf_cur_ptr = chan->out_mbuf_cur->m_data; chan->out_mbuf_cur_len = chan->out_mbuf_cur->m_len; if(sc->sc_trace & TRACE_B_TX) { i4b_trace_hdr_t hdr; hdr.unit = L0ISICUNIT(unit); hdr.type = (h_chan == HSCX_CH_A ? TRC_CH_B1 : TRC_CH_B2); hdr.dir = FROM_TE; hdr.count = ++sc->sc_trace_bcount; MICROTIME(hdr.time); i4b_l1_trace_ind(&hdr, chan->out_mbuf_cur->m_len, chan->out_mbuf_cur->m_data); } } } /* * if there is either still data in the current mbuf and/or * there is a successor on the chain available issue just * a XTF (transmit) command to HSCX. if ther is no more * data available from the current mbuf (-chain), issue * an XTF and an XME (message end) command which will then * send the CRC and the closing HDLC flag sequence */ if(chan->out_mbuf_cur && (chan->out_mbuf_cur_len > 0)) { /* * more data available, send current fifo out. * next xfer to HSCX tx fifo is done in the * HSCX interrupt routine. */ cmd |= HSCX_CMDR_XTF; } else { /* end of mbuf chain */ if(chan->bprot == BPROT_NONE) cmd |= HSCX_CMDR_XTF; else cmd |= HSCX_CMDR_XTF | HSCX_CMDR_XME; i4b_Bfreembuf(chan->out_mbuf_head); /* free mbuf chain */ chan->out_mbuf_head = NULL; chan->out_mbuf_cur = NULL; chan->out_mbuf_cur_ptr = NULL; chan->out_mbuf_cur_len = 0; } /* call timeout handling routine */ if(activity == ACT_RX || activity == ACT_TX) (*chan->isic_drvr_linktab->bch_activity)(chan->isic_drvr_linktab->unit, activity); if(cmd) isic_hscx_cmd(sc, h_chan, cmd); crit_exit(); }
/*---------------------------------------------------------------------------* * B-channel interrupt handler *---------------------------------------------------------------------------*/ void iwic_bchan_xirq(struct iwic_softc *sc, int chan_no) { int irq_stat; struct iwic_bchan *chan; int cmd = 0; int activity = 0; chan = &sc->sc_bchan[chan_no]; irq_stat = IWIC_READ(sc, chan->offset + B_EXIR); NDBGL1(L1_H_IRQ, "irq_stat = 0x%x", irq_stat); if((irq_stat & (B_EXIR_RMR | B_EXIR_RME | B_EXIR_RDOV | B_EXIR_XFR | B_EXIR_XDUN)) == 0) { NDBGL1(L1_H_XFRERR, "spurious IRQ!"); return; } if (irq_stat & B_EXIR_RDOV) { NDBGL1(L1_H_XFRERR, "iwic%d: EXIR B-channel Receive Data Overflow", sc->sc_unit); } if (irq_stat & B_EXIR_XDUN) { NDBGL1(L1_H_XFRERR, "iwic%d: EXIR B-channel Transmit Data Underrun", sc->sc_unit); cmd |= (B_CMDR_XRST); /*XXX must retransmit frame ! */ } /* RX message end interrupt */ if(irq_stat & B_EXIR_RME) { int error; NDBGL1(L1_H_IRQ, "B_EXIR_RME"); error = (IWIC_READ(sc,chan->offset+B_STAR) & (B_STAR_RDOV | B_STAR_CRCE | B_STAR_RMB)); if(error) { if(error & B_STAR_RDOV) NDBGL1(L1_H_XFRERR, "iwic%d: B-channel Receive Data Overflow", sc->sc_unit); if(error & B_STAR_CRCE) NDBGL1(L1_H_XFRERR, "iwic%d: B-channel CRC Error", sc->sc_unit); if(error & B_STAR_RMB) NDBGL1(L1_H_XFRERR, "iwic%d: B-channel Receive Message Aborted", sc->sc_unit); } /* all error conditions checked, now decide and take action */ if(error == 0) { int fifo_data_len; fifo_data_len = ((IWIC_READ(sc,chan->offset+B_RBCL)) & ((IWIC_BCHAN_FIFO_LEN)-1)); if(fifo_data_len == 0) fifo_data_len = IWIC_BCHAN_FIFO_LEN; if(chan->in_mbuf == NULL) { if((chan->in_mbuf = i4b_Bgetmbuf(BCH_MAX_DATALEN)) == NULL) panic("L1 iwic_bchan_irq: RME, cannot allocate mbuf!\n"); chan->in_cbptr = chan->in_mbuf->m_data; chan->in_len = 0; } if((chan->in_len + fifo_data_len) <= BCH_MAX_DATALEN) { /* read data from fifo */ NDBGL1(L1_H_IRQ, "B_EXIR_RME, rd fifo, len = %d", fifo_data_len); IWIC_RDBFIFO(sc, chan, chan->in_cbptr, fifo_data_len); cmd |= (B_CMDR_RACK | B_CMDR_RACT); IWIC_WRITE(sc, chan->offset + B_CMDR, cmd); cmd = 0; chan->in_len += fifo_data_len; chan->rxcount += fifo_data_len; /* setup mbuf data length */ chan->in_mbuf->m_len = chan->in_len; chan->in_mbuf->m_pkthdr.len = chan->in_len; if(sc->sc_trace & TRACE_B_RX) { i4b_trace_hdr_t hdr; hdr.unit = L0IWICUNIT(sc->sc_unit); hdr.type = (chan_no == IWIC_BCH_A ? TRC_CH_B1 : TRC_CH_B2); hdr.dir = FROM_NT; hdr.count = ++sc->sc_bchan[chan_no].sc_trace_bcount; MICROTIME(hdr.time); i4b_l1_trace_ind(&hdr, chan->in_mbuf->m_len, chan->in_mbuf->m_data); } (*chan->iwic_drvr_linktab->bch_rx_data_ready)(chan->iwic_drvr_linktab->unit); activity = ACT_RX; /* mark buffer ptr as unused */ chan->in_mbuf = NULL; chan->in_cbptr = NULL; chan->in_len = 0; } else { NDBGL1(L1_H_XFRERR, "RAWHDLC rx buffer overflow in RME, in_len=%d, fifolen=%d", chan->in_len, fifo_data_len); chan->in_cbptr = chan->in_mbuf->m_data; chan->in_len = 0; cmd |= (B_CMDR_RRST | B_CMDR_RACK); } } else { if (chan->in_mbuf != NULL) { i4b_Bfreembuf(chan->in_mbuf); chan->in_mbuf = NULL; chan->in_cbptr = NULL; chan->in_len = 0; } cmd |= (B_CMDR_RRST | B_CMDR_RACK); } } /* RX fifo full interrupt */ if(irq_stat & B_EXIR_RMR) { NDBGL1(L1_H_IRQ, "B_EXIR_RMR"); if(chan->in_mbuf == NULL) { if((chan->in_mbuf = i4b_Bgetmbuf(BCH_MAX_DATALEN)) == NULL) panic("L1 iwic_bchan_irq: RMR, cannot allocate mbuf!\n"); chan->in_cbptr = chan->in_mbuf->m_data; chan->in_len = 0; } chan->rxcount += IWIC_BCHAN_FIFO_LEN; if((chan->in_len + IWIC_BCHAN_FIFO_LEN) <= BCH_MAX_DATALEN) { /* read data from fifo */ NDBGL1(L1_H_IRQ, "B_EXIR_RMR, rd fifo, len = max (64)"); IWIC_RDBFIFO(sc, chan, chan->in_cbptr, IWIC_BCHAN_FIFO_LEN); chan->in_cbptr += IWIC_BCHAN_FIFO_LEN; chan->in_len += IWIC_BCHAN_FIFO_LEN; } else { if(chan->bprot == BPROT_NONE) { /* setup mbuf data length */ chan->in_mbuf->m_len = chan->in_len; chan->in_mbuf->m_pkthdr.len = chan->in_len; if(sc->sc_trace & TRACE_B_RX) { i4b_trace_hdr_t hdr; hdr.unit = L0IWICUNIT(sc->sc_unit); hdr.type = (chan_no == IWIC_BCH_A ? TRC_CH_B1 : TRC_CH_B2); hdr.dir = FROM_NT; hdr.count = ++sc->sc_bchan[chan_no].sc_trace_bcount; MICROTIME(hdr.time); i4b_l1_trace_ind(&hdr, chan->in_mbuf->m_len, chan->in_mbuf->m_data); } /* silence detection */ if(!(i4b_l1_bchan_tel_silence(chan->in_mbuf->m_data, chan->in_mbuf->m_len))) activity = ACT_RX; if(!(IF_QFULL(&chan->rx_queue))) { IF_ENQUEUE(&chan->rx_queue, chan->in_mbuf); } else { i4b_Bfreembuf(chan->in_mbuf); } /* signal upper driver that data is available */ (*chan->iwic_drvr_linktab->bch_rx_data_ready)(chan->iwic_drvr_linktab->unit); /* alloc new buffer */ if((chan->in_mbuf = i4b_Bgetmbuf(BCH_MAX_DATALEN)) == NULL) panic("L1 iwic_bchan_irq: RMR, cannot allocate new mbuf!\n"); /* setup new data ptr */ chan->in_cbptr = chan->in_mbuf->m_data; /* read data from fifo */ NDBGL1(L1_H_IRQ, "B_EXIR_RMR, rd fifo1, len = max (64)"); IWIC_RDBFIFO(sc, chan, chan->in_cbptr, IWIC_BCHAN_FIFO_LEN); chan->in_cbptr += IWIC_BCHAN_FIFO_LEN; chan->in_len = IWIC_BCHAN_FIFO_LEN; chan->rxcount += IWIC_BCHAN_FIFO_LEN; } else { NDBGL1(L1_H_XFRERR, "RAWHDLC rx buffer overflow in RPF, in_len=%d", chan->in_len); chan->in_cbptr = chan->in_mbuf->m_data; chan->in_len = 0; cmd |= (B_CMDR_RRST | B_CMDR_RACK); } } /* command to release fifo space */ cmd |= B_CMDR_RACK; } /* TX interrupt */ if (irq_stat & B_EXIR_XFR) { /* transmit fifo empty, new data can be written to fifo */ int activity = -1; int len; int nextlen; NDBGL1(L1_H_IRQ, "B_EXIR_XFR"); if(chan->out_mbuf_cur == NULL) /* last frame is transmitted */ { IF_DEQUEUE(&chan->tx_queue, chan->out_mbuf_head); if(chan->out_mbuf_head == NULL) { chan->state &= ~ST_TX_ACTIVE; (*chan->iwic_drvr_linktab->bch_tx_queue_empty)(chan->iwic_drvr_linktab->unit); } else { chan->state |= ST_TX_ACTIVE; chan->out_mbuf_cur = chan->out_mbuf_head; chan->out_mbuf_cur_ptr = chan->out_mbuf_cur->m_data; chan->out_mbuf_cur_len = chan->out_mbuf_cur->m_len; if(sc->sc_trace & TRACE_B_TX) { i4b_trace_hdr_t hdr; hdr.unit = L0IWICUNIT(sc->sc_unit); hdr.type = (chan_no == IWIC_BCH_A ? TRC_CH_B1 : TRC_CH_B2); hdr.dir = FROM_TE; hdr.count = ++sc->sc_bchan[chan_no].sc_trace_bcount; MICROTIME(hdr.time); i4b_l1_trace_ind(&hdr, chan->out_mbuf_cur->m_len, chan->out_mbuf_cur->m_data); } if(chan->bprot == BPROT_NONE) { if(!(i4b_l1_bchan_tel_silence(chan->out_mbuf_cur->m_data, chan->out_mbuf_cur->m_len))) activity = ACT_TX; } else { activity = ACT_TX; } } } len = 0; while(chan->out_mbuf_cur && len != IWIC_BCHAN_FIFO_LEN) { nextlen = min(chan->out_mbuf_cur_len, IWIC_BCHAN_FIFO_LEN - len); NDBGL1(L1_H_IRQ, "B_EXIR_XFR, wr fifo, len = %d", nextlen); IWIC_WRBFIFO(sc, chan, chan->out_mbuf_cur_ptr, nextlen); cmd |= B_CMDR_XMS; len += nextlen; chan->txcount += nextlen; chan->out_mbuf_cur_ptr += nextlen; chan->out_mbuf_cur_len -= nextlen; if(chan->out_mbuf_cur_len == 0) { if((chan->out_mbuf_cur = chan->out_mbuf_cur->m_next) != NULL) { chan->out_mbuf_cur_ptr = chan->out_mbuf_cur->m_data; chan->out_mbuf_cur_len = chan->out_mbuf_cur->m_len; if(sc->sc_trace & TRACE_B_TX) { i4b_trace_hdr_t hdr; hdr.unit = L0IWICUNIT(sc->sc_unit); hdr.type = (chan_no == IWIC_BCH_A ? TRC_CH_B1 : TRC_CH_B2); hdr.dir = FROM_TE; hdr.count = ++sc->sc_bchan[chan_no].sc_trace_bcount; MICROTIME(hdr.time); i4b_l1_trace_ind(&hdr, chan->out_mbuf_cur->m_len, chan->out_mbuf_cur->m_data); } } else { if (chan->bprot != BPROT_NONE) cmd |= B_CMDR_XME; i4b_Bfreembuf(chan->out_mbuf_head); chan->out_mbuf_head = NULL; } } } } if(cmd) { cmd |= B_CMDR_RACT; IWIC_WRITE(sc, chan->offset + B_CMDR, cmd); } }
/*---------------------------------------------------------------------------* * start transmission on a b channel *---------------------------------------------------------------------------*/ static void iwic_bchannel_start(int unit, int chan_no) { struct iwic_softc *sc = &iwic_sc[unit]; struct iwic_bchan *chan = &sc->sc_bchan[chan_no]; int next_len; int len; int activity = -1; int cmd = 0; crit_enter(); NDBGL1(L1_BCHAN, "unit %d, channel %d", unit, chan_no); if(chan->state & ST_TX_ACTIVE) /* already running ? */ { crit_exit(); return; /* yes, leave */ } /* get next mbuf from queue */ IF_DEQUEUE(&chan->tx_queue, chan->out_mbuf_head); if(chan->out_mbuf_head == NULL) /* queue empty ? */ { crit_exit(); return; /* yes, exit */ } /* init current mbuf values */ chan->out_mbuf_cur = chan->out_mbuf_head; chan->out_mbuf_cur_len = chan->out_mbuf_cur->m_len; chan->out_mbuf_cur_ptr = chan->out_mbuf_cur->m_data; /* activity indicator for timeout handling */ if(chan->bprot == BPROT_NONE) { if(!(i4b_l1_bchan_tel_silence(chan->out_mbuf_cur->m_data, chan->out_mbuf_cur->m_len))) activity = ACT_TX; } else { activity = ACT_TX; } chan->state |= ST_TX_ACTIVE; /* we start transmitting */ if(sc->sc_trace & TRACE_B_TX) /* if trace, send mbuf to trace dev */ { i4b_trace_hdr_t hdr; hdr.unit = L0IWICUNIT(unit); hdr.type = (chan_no == IWIC_BCH_A ? TRC_CH_B1 : TRC_CH_B2); hdr.dir = FROM_TE; hdr.count = ++sc->sc_bchan[chan_no].sc_trace_bcount; MICROTIME(hdr.time); i4b_l1_trace_ind(&hdr, chan->out_mbuf_cur->m_len, chan->out_mbuf_cur->m_data); } len = 0; /* # of chars put into tx fifo this time */ /* * fill the tx fifo with data from the current mbuf. if * current mbuf holds less data than fifo length, try to * get the next mbuf from (a possible) mbuf chain. if there is * not enough data in a single mbuf or in a chain, then this * is the last mbuf and we tell the chip that it has to send * CRC and closing flag */ while((len < IWIC_BCHAN_FIFO_LEN) && chan->out_mbuf_cur) { /* * put as much data into the fifo as is * available from the current mbuf */ if((len + chan->out_mbuf_cur_len) >= IWIC_BCHAN_FIFO_LEN) next_len = IWIC_BCHAN_FIFO_LEN - len; else next_len = chan->out_mbuf_cur_len; /* write what we have from current mbuf to fifo */ IWIC_WRBFIFO(sc, chan, chan->out_mbuf_cur_ptr, next_len); len += next_len; /* update # of bytes written */ chan->txcount += next_len; /* statistics */ chan->out_mbuf_cur_ptr += next_len; /* data ptr */ chan->out_mbuf_cur_len -= next_len; /* data len */ /* * in case the current mbuf (of a possible chain) data * has been put into the fifo, check if there is a next * mbuf in the chain. If there is one, get ptr to it * and update the data ptr and the length */ if((chan->out_mbuf_cur_len <= 0) && ((chan->out_mbuf_cur = chan->out_mbuf_cur->m_next) != NULL)) { chan->out_mbuf_cur_ptr = chan->out_mbuf_cur->m_data; chan->out_mbuf_cur_len = chan->out_mbuf_cur->m_len; if(sc->sc_trace & TRACE_B_TX) { i4b_trace_hdr_t hdr; hdr.unit = L0IWICUNIT(unit); hdr.type = (chan_no == IWIC_BCH_A ? TRC_CH_B1 : TRC_CH_B2); hdr.dir = FROM_TE; hdr.count = ++sc->sc_bchan[chan_no].sc_trace_bcount; MICROTIME(hdr.time); i4b_l1_trace_ind(&hdr, chan->out_mbuf_cur->m_len, chan->out_mbuf_cur->m_data); } } } /* * if there is either still data in the current mbuf and/or * there is a successor on the chain available issue just * a XTF (transmit) command to the chip. if there is no more * data available from the current mbuf (-chain), issue * an XTF and an XME (message end) command which will then * send the CRC and the closing HDLC flag sequence */ if(chan->out_mbuf_cur && (chan->out_mbuf_cur_len > 0)) { /* * more data available, send current fifo out. * next xfer to tx fifo is done in the * interrupt routine. */ cmd |= B_CMDR_XMS; } else { /* end of mbuf chain */ if(chan->bprot == BPROT_NONE) cmd |= B_CMDR_XMS; else cmd |= (B_CMDR_XMS | B_CMDR_XME); i4b_Bfreembuf(chan->out_mbuf_head); /* free mbuf chain */ chan->out_mbuf_head = NULL; chan->out_mbuf_cur = NULL; chan->out_mbuf_cur_ptr = NULL; chan->out_mbuf_cur_len = 0; } /* call timeout handling routine */ if(activity == ACT_RX || activity == ACT_TX) (*chan->iwic_drvr_linktab->bch_activity)(chan->iwic_drvr_linktab->unit, activity); if(cmd) { cmd |= B_CMDR_RACT; IWIC_WRITE(sc, chan->offset + B_CMDR, cmd); } crit_exit(); }
/*---------------------------------------------------------------------------* * Data source switch for Read channels - 1, 3 and 5 (B and D-Channel) *---------------------------------------------------------------------------*/ void ihfc_putmbuf (ihfc_sc_t *sc, u_char chan, struct mbuf *m) { i4b_trace_hdr_t hdr; if (chan < 2) { if(S_TRACE & TRACE_D_RX) { hdr.count = ++S_DTRACECOUNT; hdr.dir = FROM_NT; hdr.type = TRC_CH_D; hdr.unit = S_I4BUNIT; MICROTIME(hdr.time); i4b_l1_trace_ind(&hdr, m->m_len, m->m_data); } if (!S_ENABLED) { i4b_Dfreembuf(m); return; } m->m_pkthdr.len = m->m_len; i4b_l1_ph_data_ind(S_I4BUNIT, m); } else { if(S_TRACE & TRACE_B_RX) { hdr.count = ++S_BTRACECOUNT; hdr.dir = FROM_NT; hdr.type = (chan < 4) ? TRC_CH_B1 : TRC_CH_B2; hdr.unit = S_I4BUNIT; MICROTIME(hdr.time); i4b_l1_trace_ind(&hdr, m->m_len, m->m_data); } if (!S_ENABLED) { i4b_Bfreembuf(m); return; } if (S_PROT == BPROT_NONE) { if(!i4b_l1_bchan_tel_silence(m->m_data, m->m_len)) { S_BDRVLINK->bch_activity(S_BDRVLINK->unit, ACT_RX); } if (!_IF_QFULL(&S_IFQUEUE)) { S_BYTES += m->m_len; IF_ENQUEUE(&S_IFQUEUE, m); S_BDRVLINK->bch_rx_data_ready(S_BDRVLINK->unit); } return; } if (S_PROT == BPROT_RHDLC) { S_MBUFDUMMY = m; S_BYTES += m->m_pkthdr.len = m->m_len; S_BDRVLINK->bch_rx_data_ready(S_BDRVLINK->unit); S_MBUFDUMMY = NULL; return; } NDBGL1(L1_ERROR, "Unknown protocol: %d", S_PROT); } }