/* * Copyright (c) 1997, 2002 Hellmuth Michaelis. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * *--------------------------------------------------------------------------- * * i4b_tel.c - device driver for ISDN telephony * -------------------------------------------- * last edit-date: [Tue Aug 27 13:54:08 2002] * *---------------------------------------------------------------------------*/ #include __FBSDID("$FreeBSD$"); #include "i4btel.h" #undef I4BTELDEBUG #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include /* minor number: lower 6 bits = unit number */ #define UNITBITS 6 #define UNITMASK 0x3f #define UNIT(n) (minor(n) & UNITMASK) /* minor number: upper 2 bits = function number */ #define FUNCMASK 0x03 #define FUNC(n) (((minor(n)) >> UNITBITS) & FUNCMASK) #define FUNCTEL 0 /* 0 = normal i4btel device */ #define FUNCDIAL 1 /* 1 = i4bteld dialout device */ #define NOFUNCS 2 /* number of device classes */ typedef struct { /* used only in func = FUNCTEL */ drvr_link_t drvr_linktab; /* driver linktab */ isdn_link_t *isdn_linktab; /* isdn linktab */ int audiofmt; /* audio format conversion */ u_char *rcvttab; /* conversion table on read */ u_char *wcvttab; /* conversion table on write */ call_desc_t *cdp; /* call descriptor pointer */ /* used only in func = FUNCDIAL */ char result; /* result code for dial dev */ /* used in func = FUNCDIAL and func = FUNCTEL*/ int devstate; /* state of this unit */ #define ST_IDLE 0x00 /* idle */ #define ST_CONNECTED 0x01 /* isdn connected state */ #define ST_ISOPEN 0x02 /* userland opened */ #define ST_RDWAITDATA 0x04 /* userland read waiting */ #define ST_WRWAITEMPTY 0x08 /* userland write waiting */ #define ST_TONE 0x10 /* tone generator */ struct selinfo selp; /* select / poll */ struct i4b_tel_tones tones; int toneidx; int toneomega; int tonefreq; } tel_sc_t; static tel_sc_t tel_sc[NI4BTEL][NOFUNCS]; /* forward decl */ static void tel_rx_data_rdy(int unit); static void tel_tx_queue_empty(int unit); static void tel_init_linktab(int unit); static void tel_connect(int unit, void *cdp); static void tel_disconnect(int unit, void *cdp); static void tel_tone(tel_sc_t *sc); /* audio format conversion tables */ static unsigned char a2u_tab[]; static unsigned char u2a_tab[]; static unsigned char bitreverse[]; static u_char sinetab[]; static d_open_t i4btelopen; static d_close_t i4btelclose; static d_read_t i4btelread; static d_read_t i4btelwrite; static d_ioctl_t i4btelioctl; static d_poll_t i4btelpoll; static struct cdevsw i4btel_cdevsw = { .d_version = D_VERSION, .d_flags = D_NEEDGIANT, .d_open = i4btelopen, .d_close = i4btelclose, .d_read = i4btelread, .d_write = i4btelwrite, .d_ioctl = i4btelioctl, .d_poll = i4btelpoll, .d_name = "i4btel", }; static void i4btelattach(void *); PSEUDO_SET(i4btelattach, i4b_tel); /*===========================================================================* * DEVICE DRIVER ROUTINES *===========================================================================*/ /*---------------------------------------------------------------------------* * interface attach routine *---------------------------------------------------------------------------*/ static void i4btelattach(void *dummy) { int i, j; printf("i4btel: %d ISDN telephony interface device(s) attached\n", NI4BTEL); for(i=0; i < NI4BTEL; i++) { for(j=0; j < NOFUNCS; j++) { tel_sc[i][j].devstate = ST_IDLE; tel_sc[i][j].audiofmt = CVT_NONE; tel_sc[i][j].rcvttab = 0; tel_sc[i][j].wcvttab = 0; tel_sc[i][j].result = 0; switch(j) { case FUNCTEL: /* normal i4btel device */ make_dev(&i4btel_cdevsw, i, UID_ROOT, GID_WHEEL, 0600, "i4btel%d", i); break; case FUNCDIAL: /* i4bteld dialout device */ make_dev(&i4btel_cdevsw, i+(1<= NI4BTEL) return(ENXIO); sc = &tel_sc[unit][func]; if(sc->devstate & ST_ISOPEN) return(EBUSY); sc->devstate |= ST_ISOPEN; if(func == FUNCDIAL) { sc->result = 0; } return(0); } /*---------------------------------------------------------------------------* * close tel device *---------------------------------------------------------------------------*/ static int i4btelclose(struct cdev *dev, int flag, int fmt, struct thread *td) { int unit = UNIT(dev); int func = FUNC(dev); tel_sc_t *sc; int error = 0; int x; if(unit > NI4BTEL) return(ENXIO); sc = &tel_sc[unit][func]; x = splimp(); sc->devstate &= ~ST_TONE; if((func == FUNCTEL) && (sc->isdn_linktab != NULL && sc->isdn_linktab->tx_queue != NULL)) { while(!(IF_QEMPTY(sc->isdn_linktab->tx_queue))) { sc->devstate |= ST_WRWAITEMPTY; if((error = tsleep( &sc->isdn_linktab->tx_queue, I4BPRI | PCATCH, "wtcl", 0)) != 0) { break; } } sc->devstate &= ~ST_WRWAITEMPTY; } sc->devstate &= ~ST_ISOPEN; splx(x); wakeup( &sc->tones); return(error); } /*---------------------------------------------------------------------------* * i4btelioctl - device driver ioctl routine *---------------------------------------------------------------------------*/ static int i4btelioctl(struct cdev *dev, u_long cmd, caddr_t data, int flag, struct thread *td) { int unit = UNIT(dev); int func = FUNC(dev); int error = 0; struct mbuf *m; int s; tel_sc_t *sc = &tel_sc[unit][func]; if(func == FUNCTEL) { switch(cmd) { case I4B_TEL_GETAUDIOFMT: *(int *)data = sc->audiofmt; break; case I4B_TEL_SETAUDIOFMT: switch (*(int *)data) { case CVT_NONE: sc->rcvttab = 0; sc->wcvttab = 0; break; case CVT_ALAW2ULAW: /* ISDN: a-law */ /* user: u-law */ sc->rcvttab = a2u_tab; sc->wcvttab = u2a_tab; break; case CVT_ULAW2ALAW: /* ISDN: u-law */ /* user: a-law */ sc->rcvttab = u2a_tab; sc->wcvttab = a2u_tab; break; default: error = ENODEV; break; } if(error == 0) sc->audiofmt = *(int *)data; break; case I4B_TEL_EMPTYINPUTQUEUE: s = splimp(); while((sc->devstate & ST_CONNECTED) && (sc->devstate & ST_ISOPEN) && !IF_QEMPTY(sc->isdn_linktab->rx_queue)) { IF_DEQUEUE(sc->isdn_linktab->rx_queue, m); if(m) i4b_Bfreembuf(m); } splx(s); break; case I4B_TEL_VR_REQ: { msg_vr_req_t *mvr; mvr = (msg_vr_req_t *)data; mvr->version = VERSION; mvr->release = REL; mvr->step = STEP; break; } case I4B_TEL_TONES: { struct i4b_tel_tones *tt; tt = (struct i4b_tel_tones *)data; s = splimp(); while ((sc->devstate & ST_TONE) && sc->tones.duration[sc->toneidx] != 0) { if((error = tsleep( &sc->tones, I4BPRI | PCATCH, "rtone", 0 )) != 0) { splx(s); return(error); } } if(!(sc->devstate & ST_ISOPEN)) { splx(s); return (EIO); } if(!(sc->devstate & ST_CONNECTED)) { splx(s); return (EIO); } sc->tones = *tt; sc->toneidx = 0; sc->tonefreq = tt->frequency[0]; sc->devstate |= ST_TONE; splx(s); tel_tone(sc); break; } default: error = ENOTTY; break; } } else if(func == FUNCDIAL) { switch(cmd) { default: error = ENOTTY; break; } } return(error); } /*---------------------------------------------------------------------------* * read from tel device *---------------------------------------------------------------------------*/ static int i4btelread(struct cdev *dev, struct uio *uio, int ioflag) { int unit = UNIT(dev); int func = FUNC(dev); struct mbuf *m; int s; int error = 0; tel_sc_t *sc = &tel_sc[unit][func]; if(!(sc->devstate & ST_ISOPEN)) return(EIO); if(func == FUNCTEL) { s = splimp(); IF_LOCK(sc->isdn_linktab->rx_queue); while((sc->devstate & ST_ISOPEN) && (sc->devstate & ST_CONNECTED) && IF_QEMPTY(sc->isdn_linktab->rx_queue)) { sc->devstate |= ST_RDWAITDATA; NDBGL4(L4_TELDBG, "i4btel%d, queue empty!", unit); if((error = msleep( &sc->isdn_linktab->rx_queue, &sc->isdn_linktab->rx_queue->ifq_mtx, I4BPRI | PCATCH, "rtel", 0 )) != 0) { sc->devstate &= ~ST_RDWAITDATA; IF_UNLOCK(sc->isdn_linktab->rx_queue); splx(s); return(error); } } if(!(sc->devstate & ST_ISOPEN)) { IF_UNLOCK(sc->isdn_linktab->rx_queue); splx(s); return(EIO); } if(!(sc->devstate & ST_CONNECTED)) { IF_UNLOCK(sc->isdn_linktab->rx_queue); splx(s); return(EIO); } _IF_DEQUEUE(sc->isdn_linktab->rx_queue, m); IF_UNLOCK(sc->isdn_linktab->rx_queue); if(m && m->m_len > 0) { register int i; for(i = 0; i < m->m_len; i++) { /* always reverse bit order from line */ mtod(m,u_char *)[i] = bitreverse[mtod(m,u_char *)[i]]; /* convert if necessary */ if(sc->rcvttab) mtod(m,u_char *)[i] = sc->rcvttab[mtod(m,u_char *)[i]]; } error = uiomove(m->m_data, m->m_len, uio); NDBGL4(L4_TELDBG, "i4btel%d, mbuf (%d bytes), uiomove %d!", unit, m->m_len, error); } else { NDBGL4(L4_TELDBG, "i4btel%d, empty mbuf from queue!", unit); error = EIO; } if(m) i4b_Bfreembuf(m); splx(s); } else if(func == FUNCDIAL) { s = splimp(); while((sc->result == 0) && (sc->devstate & ST_ISOPEN)) { sc->devstate |= ST_RDWAITDATA; NDBGL4(L4_TELDBG, "i4btel%d, wait for result!", unit); if((error = tsleep( &sc->result, I4BPRI | PCATCH, "rtel1", 0 )) != 0) { sc->devstate &= ~ST_RDWAITDATA; splx(s); NDBGL4(L4_TELDBG, "i4btel%d, wait for result: sleep error!", unit); return(error); } } if(!(sc->devstate & ST_ISOPEN)) { splx(s); NDBGL4(L4_TELDBG, "i4btel%d, wait for result: device closed!", unit); return(EIO); } if(sc->result != 0) { NDBGL4(L4_TELDBG, "i4btel%d, wait for result: 0x%02x!", unit, sc->result); error = uiomove(&sc->result, 1, uio); sc->result = 0; } else { NDBGL4(L4_TELDBG, "i4btel%d, wait for result: result=0!", unit); error = EIO; } splx(s); } return(error); } /*---------------------------------------------------------------------------* * write to tel device *---------------------------------------------------------------------------*/ static int i4btelwrite(struct cdev *dev, struct uio * uio, int ioflag) { int unit = UNIT(dev); int func = FUNC(dev); struct mbuf *m; int s; int error = 0; tel_sc_t *sc = &tel_sc[unit][func]; if(!(sc->devstate & ST_ISOPEN)) { return(EIO); } if(func == FUNCTEL) { s = splimp(); if(!(sc->devstate & ST_CONNECTED)) { splx(s); return(EIO); } sc->devstate &= ~ST_TONE; IF_LOCK(sc->isdn_linktab->tx_queue); while((_IF_QFULL(sc->isdn_linktab->tx_queue)) && (sc->devstate & ST_ISOPEN)) { sc->devstate |= ST_WRWAITEMPTY; if((error = msleep( &sc->isdn_linktab->tx_queue, &sc->isdn_linktab->tx_queue->ifq_mtx, I4BPRI | PCATCH, "wtel", 0)) != 0) { sc->devstate &= ~ST_WRWAITEMPTY; IF_UNLOCK(sc->isdn_linktab->tx_queue); splx(s); return(error); } } IF_UNLOCK(sc->isdn_linktab->tx_queue); if(!(sc->devstate & ST_ISOPEN)) { splx(s); return(EIO); } if(!(sc->devstate & ST_CONNECTED)) { splx(s); return(EIO); } if((m = i4b_Bgetmbuf(BCH_MAX_DATALEN)) != NULL) { register int i; m->m_len = min(BCH_MAX_DATALEN, uio->uio_resid); error = uiomove(m->m_data, m->m_len, uio); for(i = 0; i < m->m_len; i++) { /* convert if necessary */ if(sc->wcvttab) mtod(m,u_char *)[i] = sc->wcvttab[mtod(m,u_char *)[i]]; /* always reverse bitorder to line */ mtod(m,u_char *)[i] = bitreverse[mtod(m,u_char *)[i]]; } (void) IF_HANDOFF(sc->isdn_linktab->tx_queue, m, NULL); (*sc->isdn_linktab->bch_tx_start)(sc->isdn_linktab->unit, sc->isdn_linktab->channel); } splx(s); } else if(func == FUNCDIAL) { #define CMDBUFSIZ 80 char cmdbuf[CMDBUFSIZ]; int len = min(CMDBUFSIZ-1, uio->uio_resid); error = uiomove(cmdbuf, len, uio); if(cmdbuf[0] == CMD_DIAL) { i4b_l4_dialoutnumber(BDRV_TEL, unit, len-1, &cmdbuf[1]); } else if(cmdbuf[0] == CMD_HUP) { i4b_l4_drvrdisc(BDRV_TEL, unit); } else if(cmdbuf[0] == CMD_KEYP) { i4b_l4_keypad(BDRV_TEL, unit, len-1, &cmdbuf[1]); } } else { error = EIO; } return(error); } /*---------------------------------------------------------------------------* * *---------------------------------------------------------------------------*/ #define NTONESAMP 32 static void tel_tone(tel_sc_t *sc) { struct mbuf *m; u_char *p; int i; if((m = i4b_Bgetmbuf(NTONESAMP)) == NULL) { printf("no mbuf in tel_tone\n"); return; } p = m->m_data; m->m_len = 0; for (i = 0; i < NTONESAMP && (sc->devstate & ST_TONE); i++) { if (sc->tones.duration[sc->toneidx] > 0) { if (--sc->tones.duration[sc->toneidx] == 0) { sc->toneidx++; if (sc->toneidx == I4B_TEL_MAXTONES) { sc->devstate &= ~ST_TONE; sc->toneomega = 0; sc->tonefreq = 0; } else if (sc->tones.frequency[sc->toneidx] == 0 && sc->tones.duration[sc->toneidx] == 0) { sc->devstate &= ~ST_TONE; sc->toneomega = 0; sc->tonefreq = 0; } else { sc->tonefreq = sc->tones.frequency[sc->toneidx]; } if (sc->tones.duration[sc->toneidx] == 0) { wakeup( &sc->tones); } } } sc->toneomega += sc->tonefreq; if (sc->toneomega >= 8000) sc->toneomega -= 8000; *p++ = bitreverse[sinetab[sc->toneomega]]; m->m_len++; } IF_ENQUEUE(sc->isdn_linktab->tx_queue, m); (*sc->isdn_linktab->bch_tx_start)(sc->isdn_linktab->unit, sc->isdn_linktab->channel); } /*---------------------------------------------------------------------------* * device driver poll *---------------------------------------------------------------------------*/ static int i4btelpoll(struct cdev *dev, int events, struct thread *td) { int revents = 0; /* Events we found */ int s; int unit = UNIT(dev); int func = FUNC(dev); tel_sc_t *sc = &tel_sc[unit][func]; s = splhigh(); if(!(sc->devstate & ST_ISOPEN)) { NDBGL4(L4_TELDBG, "i4btel%d, !ST_ISOPEN", unit); splx(s); return(0); } if(func == FUNCTEL) { /* * Writes are OK if we are connected and the * transmit queue can take them */ if((events & (POLLOUT|POLLWRNORM)) && (sc->devstate & ST_CONNECTED) && (sc->isdn_linktab != NULL) && (!_IF_QFULL(sc->isdn_linktab->tx_queue))) { NDBGL4(L4_TELDBG, "i4btel%d, POLLOUT", unit); revents |= (events & (POLLOUT|POLLWRNORM)); } /* ... while reads are OK if we have any data */ if((events & (POLLIN|POLLRDNORM)) && (sc->devstate & ST_CONNECTED) && (sc->isdn_linktab != NULL) && (!IF_QEMPTY(sc->isdn_linktab->rx_queue))) { NDBGL4(L4_TELDBG, "i4btel%d, POLLIN", unit); revents |= (events & (POLLIN|POLLRDNORM)); } if(revents == 0) { NDBGL4(L4_TELDBG, "i4btel%d, selrecord", unit); selrecord(td, &sc->selp); } } else if(func == FUNCDIAL) { if(events & (POLLOUT|POLLWRNORM)) { NDBGL4(L4_TELDBG, "i4bteld%d, POLLOUT", unit); revents |= (events & (POLLOUT|POLLWRNORM)); } if(events & (POLLIN|POLLRDNORM)) { NDBGL4(L4_TELDBG, "i4bteld%d, POLLIN, result = %d", unit, sc->result); if(sc->result != 0) revents |= (events & (POLLIN|POLLRDNORM)); } if(revents == 0) { NDBGL4(L4_TELDBG, "i4bteld%d, selrecord", unit); selrecord(td, &sc->selp); } } splx(s); return(revents); } /*===========================================================================* * ISDN INTERFACE ROUTINES *===========================================================================*/ /*---------------------------------------------------------------------------* * this routine is called from L4 handler at connect time *---------------------------------------------------------------------------*/ static void tel_connect(int unit, void *cdp) { tel_sc_t *sc = &tel_sc[unit][FUNCTEL]; /* audio device */ sc->cdp = (call_desc_t *)cdp; sc->devstate |= ST_CONNECTED; /* dialer device */ sc = &tel_sc[unit][FUNCDIAL]; if(sc->devstate & ST_ISOPEN) { NDBGL4(L4_TELDBG, "i4btel%d, tel_connect!", unit); sc->result = RSP_CONN; if(sc->devstate & ST_RDWAITDATA) { sc->devstate &= ~ST_RDWAITDATA; wakeup( &sc->result); } selwakeuppri(&sc->selp, I4BPRI); } } /*---------------------------------------------------------------------------* * this routine is called from L4 handler at disconnect time *---------------------------------------------------------------------------*/ static void tel_disconnect(int unit, void *cdp) { /* call_desc_t *cd = (call_desc_t *)cdp; */ tel_sc_t *sc = &tel_sc[unit][FUNCTEL]; /* audio device */ sc->devstate &= ~ST_CONNECTED; if(sc->devstate & ST_RDWAITDATA) { sc->devstate &= ~ST_RDWAITDATA; wakeup( &sc->isdn_linktab->rx_queue); } if(sc->devstate & ST_WRWAITEMPTY) { sc->devstate &= ~ST_WRWAITEMPTY; wakeup( &sc->isdn_linktab->tx_queue); } /* dialer device */ sc = &tel_sc[unit][FUNCDIAL]; if(sc->devstate & ST_ISOPEN) { NDBGL4(L4_TELDBG, "i4btel%d, tel_disconnect!", unit); sc->result = RSP_HUP; if(sc->devstate & ST_RDWAITDATA) { sc->devstate &= ~ST_RDWAITDATA; wakeup( &sc->result); } selwakeuppri(&sc->selp, I4BPRI); if (sc->devstate & ST_TONE) { sc->devstate &= ~ST_TONE; wakeup( &sc->tones); } } } /*---------------------------------------------------------------------------* * feedback from daemon in case of dial problems *---------------------------------------------------------------------------*/ static void tel_dialresponse(int unit, int status, cause_t cause) { tel_sc_t *sc = &tel_sc[unit][FUNCDIAL]; NDBGL4(L4_TELDBG, "i4btel%d, status=%d, cause=0x%4x", unit, status, cause); if((sc->devstate == ST_ISOPEN) && status) { NDBGL4(L4_TELDBG, "i4btel%d, tel_dialresponse!", unit); sc->result = RSP_NOA; if(sc->devstate & ST_RDWAITDATA) { sc->devstate &= ~ST_RDWAITDATA; wakeup( &sc->result); } selwakeuppri(&sc->selp, I4BPRI); } } /*---------------------------------------------------------------------------* * interface up/down *---------------------------------------------------------------------------*/ static void tel_updown(int unit, int updown) { } /*---------------------------------------------------------------------------* * this routine is called from the HSCX interrupt handler * when a new frame (mbuf) has been received and was put on * the rx queue. *---------------------------------------------------------------------------*/ static void tel_rx_data_rdy(int unit) { tel_sc_t *sc = &tel_sc[unit][FUNCTEL]; if(sc->devstate & ST_RDWAITDATA) { sc->devstate &= ~ST_RDWAITDATA; wakeup( &sc->isdn_linktab->rx_queue); } selwakeuppri(&sc->selp, TTOPRI); } /*---------------------------------------------------------------------------* * this routine is called from the HSCX interrupt handler * when the last frame has been sent out and there is no * further frame (mbuf) in the tx queue. *---------------------------------------------------------------------------*/ static void tel_tx_queue_empty(int unit) { tel_sc_t *sc = &tel_sc[unit][FUNCTEL]; if(sc->devstate & ST_WRWAITEMPTY) { sc->devstate &= ~ST_WRWAITEMPTY; wakeup( &sc->isdn_linktab->tx_queue); } if(sc->devstate & ST_TONE) { tel_tone(sc); } else { selwakeuppri(&sc->selp, I4BPRI); } } /*---------------------------------------------------------------------------* * this routine is called from the HSCX interrupt handler * each time a packet is received or transmitted. *---------------------------------------------------------------------------*/ static void tel_activity(int unit, int rxtx) { if(tel_sc[unit][FUNCTEL].cdp) tel_sc[unit][FUNCTEL].cdp->last_active_time = SECOND; } /*---------------------------------------------------------------------------* * return this drivers linktab address *---------------------------------------------------------------------------*/ drvr_link_t * tel_ret_linktab(int unit) { tel_sc_t *sc = &tel_sc[unit][FUNCTEL]; tel_init_linktab(unit); return(&sc->drvr_linktab); } /*---------------------------------------------------------------------------* * setup the isdn_linktab for this driver *---------------------------------------------------------------------------*/ void tel_set_linktab(int unit, isdn_link_t *ilt) { tel_sc_t *sc = &tel_sc[unit][FUNCTEL]; sc->isdn_linktab = ilt; } /*---------------------------------------------------------------------------* * initialize this drivers linktab *---------------------------------------------------------------------------*/ static void tel_init_linktab(int unit) { tel_sc_t *sc = &tel_sc[unit][FUNCTEL]; sc->drvr_linktab.unit = unit; sc->drvr_linktab.bch_rx_data_ready = tel_rx_data_rdy; sc->drvr_linktab.bch_tx_queue_empty = tel_tx_queue_empty; sc->drvr_linktab.bch_activity = tel_activity; sc->drvr_linktab.line_connected = tel_connect; sc->drvr_linktab.line_disconnected = tel_disconnect; sc->drvr_linktab.dial_response = tel_dialresponse; sc->drvr_linktab.updown_ind = tel_updown; } /*===========================================================================* * AUDIO FORMAT CONVERSION (produced by running g711conv) *===========================================================================*/ /*---------------------------------------------------------------------------* * A-law to u-law conversion *---------------------------------------------------------------------------*/ static unsigned char a2u_tab[256] = { /* 00 */ 0x2a, 0x2b, 0x28, 0x29, 0x2e, 0x2f, 0x2c, 0x2d, /* 08 */ 0x22, 0x23, 0x20, 0x21, 0x26, 0x27, 0x24, 0x25, /* 10 */ 0x39, 0x3a, 0x37, 0x38, 0x3d, 0x3e, 0x3b, 0x3c, /* 18 */ 0x31, 0x32, 0x30, 0x30, 0x35, 0x36, 0x33, 0x34, /* 20 */ 0x0a, 0x0b, 0x08, 0x09, 0x0e, 0x0f, 0x0c, 0x0d, /* 28 */ 0x02, 0x03, 0x00, 0x01, 0x06, 0x07, 0x04, 0x05, /* 30 */ 0x1a, 0x1b, 0x18, 0x19, 0x1e, 0x1f, 0x1c, 0x1d, /* 38 */ 0x12, 0x13, 0x10, 0x11, 0x16, 0x17, 0x14, 0x15, /* 40 */ 0x62, 0x63, 0x60, 0x61, 0x66, 0x67, 0x64, 0x65, /* 48 */ 0x5d, 0x5d, 0x5c, 0x5c, 0x5f, 0x5f, 0x5e, 0x5e, /* 50 */ 0x74, 0x76, 0x70, 0x72, 0x7c, 0x7e, 0x78, 0x7a, /* 58 */ 0x6a, 0x6b, 0x68, 0x69, 0x6e, 0x6f, 0x6c, 0x6d, /* 60 */ 0x48, 0x49, 0x46, 0x47, 0x4c, 0x4d, 0x4a, 0x4b, /* 68 */ 0x40, 0x41, 0x3f, 0x3f, 0x44, 0x45, 0x42, 0x43, /* 70 */ 0x56, 0x57, 0x54, 0x55, 0x5a, 0x5b, 0x58, 0x59, /* 78 */ 0x4f, 0x4f, 0x4e, 0x4e, 0x52, 0x53, 0x50, 0x51, /* 80 */ 0xaa, 0xab, 0xa8, 0xa9, 0xae, 0xaf, 0xac, 0xad, /* 88 */ 0xa2, 0xa3, 0xa0, 0xa1, 0xa6, 0xa7, 0xa4, 0xa5, /* 90 */ 0xb9, 0xba, 0xb7, 0xb8, 0xbd, 0xbe, 0xbb, 0xbc, /* 98 */ 0xb1, 0xb2, 0xb0, 0xb0, 0xb5, 0xb6, 0xb3, 0xb4, /* a0 */ 0x8a, 0x8b, 0x88, 0x89, 0x8e, 0x8f, 0x8c, 0x8d, /* a8 */ 0x82, 0x83, 0x80, 0x81, 0x86, 0x87, 0x84, 0x85, /* b0 */ 0x9a, 0x9b, 0x98, 0x99, 0x9e, 0x9f, 0x9c, 0x9d, /* b8 */ 0x92, 0x93, 0x90, 0x91, 0x96, 0x97, 0x94, 0x95, /* c0 */ 0xe2, 0xe3, 0xe0, 0xe1, 0xe6, 0xe7, 0xe4, 0xe5, /* c8 */ 0xdd, 0xdd, 0xdc, 0xdc, 0xdf, 0xdf, 0xde, 0xde, /* d0 */ 0xf4, 0xf6, 0xf0, 0xf2, 0xfc, 0xfe, 0xf8, 0xfa, /* d8 */ 0xea, 0xeb, 0xe8, 0xe9, 0xee, 0xef, 0xec, 0xed, /* e0 */ 0xc8, 0xc9, 0xc6, 0xc7, 0xcc, 0xcd, 0xca, 0xcb, /* e8 */ 0xc0, 0xc1, 0xbf, 0xbf, 0xc4, 0xc5, 0xc2, 0xc3, /* f0 */ 0xd6, 0xd7, 0xd4, 0xd5, 0xda, 0xdb, 0xd8, 0xd9, /* f8 */ 0xcf, 0xcf, 0xce, 0xce, 0xd2, 0xd3, 0xd0, 0xd1 }; /*---------------------------------------------------------------------------* * u-law to A-law conversion *---------------------------------------------------------------------------*/ static unsigned char u2a_tab[256] = { /* 00 */ 0x2a, 0x2b, 0x28, 0x29, 0x2e, 0x2f, 0x2c, 0x2d, /* 08 */ 0x22, 0x23, 0x20, 0x21, 0x26, 0x27, 0x24, 0x25, /* 10 */ 0x3a, 0x3b, 0x38, 0x39, 0x3e, 0x3f, 0x3c, 0x3d, /* 18 */ 0x32, 0x33, 0x30, 0x31, 0x36, 0x37, 0x34, 0x35, /* 20 */ 0x0a, 0x0b, 0x08, 0x09, 0x0e, 0x0f, 0x0c, 0x0d, /* 28 */ 0x02, 0x03, 0x00, 0x01, 0x06, 0x07, 0x04, 0x05, /* 30 */ 0x1b, 0x18, 0x19, 0x1e, 0x1f, 0x1c, 0x1d, 0x12, /* 38 */ 0x13, 0x10, 0x11, 0x16, 0x17, 0x14, 0x15, 0x6a, /* 40 */ 0x68, 0x69, 0x6e, 0x6f, 0x6c, 0x6d, 0x62, 0x63, /* 48 */ 0x60, 0x61, 0x66, 0x67, 0x64, 0x65, 0x7a, 0x78, /* 50 */ 0x7e, 0x7f, 0x7c, 0x7d, 0x72, 0x73, 0x70, 0x71, /* 58 */ 0x76, 0x77, 0x74, 0x75, 0x4b, 0x49, 0x4f, 0x4d, /* 60 */ 0x42, 0x43, 0x40, 0x41, 0x46, 0x47, 0x44, 0x45, /* 68 */ 0x5a, 0x5b, 0x58, 0x59, 0x5e, 0x5f, 0x5c, 0x5d, /* 70 */ 0x52, 0x52, 0x53, 0x53, 0x50, 0x50, 0x51, 0x51, /* 78 */ 0x56, 0x56, 0x57, 0x57, 0x54, 0x54, 0x55, 0x55, /* 80 */ 0xaa, 0xab, 0xa8, 0xa9, 0xae, 0xaf, 0xac, 0xad, /* 88 */ 0xa2, 0xa3, 0xa0, 0xa1, 0xa6, 0xa7, 0xa4, 0xa5, /* 90 */ 0xba, 0xbb, 0xb8, 0xb9, 0xbe, 0xbf, 0xbc, 0xbd, /* 98 */ 0xb2, 0xb3, 0xb0, 0xb1, 0xb6, 0xb7, 0xb4, 0xb5, /* a0 */ 0x8a, 0x8b, 0x88, 0x89, 0x8e, 0x8f, 0x8c, 0x8d, /* a8 */ 0x82, 0x83, 0x80, 0x81, 0x86, 0x87, 0x84, 0x85, /* b0 */ 0x9b, 0x98, 0x99, 0x9e, 0x9f, 0x9c, 0x9d, 0x92, /* b8 */ 0x93, 0x90, 0x91, 0x96, 0x97, 0x94, 0x95, 0xea, /* c0 */ 0xe8, 0xe9, 0xee, 0xef, 0xec, 0xed, 0xe2, 0xe3, /* c8 */ 0xe0, 0xe1, 0xe6, 0xe7, 0xe4, 0xe5, 0xfa, 0xf8, /* d0 */ 0xfe, 0xff, 0xfc, 0xfd, 0xf2, 0xf3, 0xf0, 0xf1, /* d8 */ 0xf6, 0xf7, 0xf4, 0xf5, 0xcb, 0xc9, 0xcf, 0xcd, /* e0 */ 0xc2, 0xc3, 0xc0, 0xc1, 0xc6, 0xc7, 0xc4, 0xc5, /* e8 */ 0xda, 0xdb, 0xd8, 0xd9, 0xde, 0xdf, 0xdc, 0xdd, /* f0 */ 0xd2, 0xd2, 0xd3, 0xd3, 0xd0, 0xd0, 0xd1, 0xd1, /* f8 */ 0xd6, 0xd6, 0xd7, 0xd7, 0xd4, 0xd4, 0xd5, 0xd5 }; /*---------------------------------------------------------------------------* * reverse bits in a byte *---------------------------------------------------------------------------*/ static unsigned char bitreverse[256] = { /* 00 */ 0x00, 0x80, 0x40, 0xc0, 0x20, 0xa0, 0x60, 0xe0, /* 08 */ 0x10, 0x90, 0x50, 0xd0, 0x30, 0xb0, 0x70, 0xf0, /* 10 */ 0x08, 0x88, 0x48, 0xc8, 0x28, 0xa8, 0x68, 0xe8, /* 18 */ 0x18, 0x98, 0x58, 0xd8, 0x38, 0xb8, 0x78, 0xf8, /* 20 */ 0x04, 0x84, 0x44, 0xc4, 0x24, 0xa4, 0x64, 0xe4, /* 28 */ 0x14, 0x94, 0x54, 0xd4, 0x34, 0xb4, 0x74, 0xf4, /* 30 */ 0x0c, 0x8c, 0x4c, 0xcc, 0x2c, 0xac, 0x6c, 0xec, /* 38 */ 0x1c, 0x9c, 0x5c, 0xdc, 0x3c, 0xbc, 0x7c, 0xfc, /* 40 */ 0x02, 0x82, 0x42, 0xc2, 0x22, 0xa2, 0x62, 0xe2, /* 48 */ 0x12, 0x92, 0x52, 0xd2, 0x32, 0xb2, 0x72, 0xf2, /* 50 */ 0x0a, 0x8a, 0x4a, 0xca, 0x2a, 0xaa, 0x6a, 0xea, /* 58 */ 0x1a, 0x9a, 0x5a, 0xda, 0x3a, 0xba, 0x7a, 0xfa, /* 60 */ 0x06, 0x86, 0x46, 0xc6, 0x26, 0xa6, 0x66, 0xe6, /* 68 */ 0x16, 0x96, 0x56, 0xd6, 0x36, 0xb6, 0x76, 0xf6, /* 70 */ 0x0e, 0x8e, 0x4e, 0xce, 0x2e, 0xae, 0x6e, 0xee, /* 78 */ 0x1e, 0x9e, 0x5e, 0xde, 0x3e, 0xbe, 0x7e, 0xfe, /* 80 */ 0x01, 0x81, 0x41, 0xc1, 0x21, 0xa1, 0x61, 0xe1, /* 88 */ 0x11, 0x91, 0x51, 0xd1, 0x31, 0xb1, 0x71, 0xf1, /* 90 */ 0x09, 0x89, 0x49, 0xc9, 0x29, 0xa9, 0x69, 0xe9, /* 98 */ 0x19, 0x99, 0x59, 0xd9, 0x39, 0xb9, 0x79, 0xf9, /* a0 */ 0x05, 0x85, 0x45, 0xc5, 0x25, 0xa5, 0x65, 0xe5, /* a8 */ 0x15, 0x95, 0x55, 0xd5, 0x35, 0xb5, 0x75, 0xf5, /* b0 */ 0x0d, 0x8d, 0x4d, 0xcd, 0x2d, 0xad, 0x6d, 0xed, /* b8 */ 0x1d, 0x9d, 0x5d, 0xdd, 0x3d, 0xbd, 0x7d, 0xfd, /* c0 */ 0x03, 0x83, 0x43, 0xc3, 0x23, 0xa3, 0x63, 0xe3, /* c8 */ 0x13, 0x93, 0x53, 0xd3, 0x33, 0xb3, 0x73, 0xf3, /* d0 */ 0x0b, 0x8b, 0x4b, 0xcb, 0x2b, 0xab, 0x6b, 0xeb, /* d8 */ 0x1b, 0x9b, 0x5b, 0xdb, 0x3b, 0xbb, 0x7b, 0xfb, /* e0 */ 0x07, 0x87, 0x47, 0xc7, 0x27, 0xa7, 0x67, 0xe7, /* e8 */ 0x17, 0x97, 0x57, 0xd7, 0x37, 0xb7, 0x77, 0xf7, /* f0 */ 0x0f, 0x8f, 0x4f, 0xcf, 0x2f, 0xaf, 0x6f, 0xef, /* f8 */ 0x1f, 0x9f, 0x5f, 0xdf, 0x3f, 0xbf, 0x7f, 0xff }; static u_char sinetab[8000] = { 213, 213, 213, 213, 213, 213, 213, 212, 212, 212, 212, 212, 212, 215, 215, 215, 215, 215, 215, 214, 214, 214, 214, 214, 214, 209, 209, 209, 209, 209, 209, 209, 208, 208, 208, 208, 208, 208, 211, 211, 211, 211, 211, 211, 210, 210, 210, 210, 210, 210, 221, 221, 221, 221, 221, 221, 220, 220, 220, 220, 220, 220, 220, 223, 223, 223, 223, 223, 223, 222, 222, 222, 222, 222, 222, 217, 217, 217, 217, 217, 217, 216, 216, 216, 216, 216, 216, 216, 219, 219, 219, 219, 219, 219, 218, 218, 218, 218, 218, 218, 197, 197, 197, 197, 197, 197, 196, 196, 196, 196, 196, 196, 196, 199, 199, 199, 199, 199, 199, 198, 198, 198, 198, 198, 198, 193, 193, 193, 193, 193, 193, 192, 192, 192, 192, 192, 192, 192, 195, 195, 195, 195, 195, 195, 194, 194, 194, 194, 194, 194, 205, 205, 205, 205, 205, 205, 204, 204, 204, 204, 204, 204, 204, 207, 207, 207, 207, 207, 207, 206, 206, 206, 206, 206, 206, 201, 201, 201, 201, 201, 201, 200, 200, 200, 200, 200, 200, 200, 203, 203, 203, 203, 203, 203, 202, 202, 202, 202, 202, 202, 245, 245, 245, 245, 245, 245, 245, 245, 245, 245, 245, 245, 245, 244, 244, 244, 244, 244, 244, 244, 244, 244, 244, 244, 244, 247, 247, 247, 247, 247, 247, 247, 247, 247, 247, 247, 247, 247, 246, 246, 246, 246, 246, 246, 246, 246, 246, 246, 246, 246, 246, 241, 241, 241, 241, 241, 241, 241, 241, 241, 241, 241, 241, 240, 240, 240, 240, 240, 240, 240, 240, 240, 240, 240, 240, 240, 243, 243, 243, 243, 243, 243, 243, 243, 243, 243, 243, 243, 243, 242, 242, 242, 242, 242, 242, 242, 242, 242, 242, 242, 242, 242, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 253, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 252, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 249, 249, 249, 249, 249, 249, 249, 249, 249, 249, 249, 249, 249, 248, 248, 248, 248, 248, 248, 248, 248, 248, 248, 248, 248, 248, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 251, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 250, 229, 229, 229, 229, 229, 229, 229, 229, 229, 229, 229, 229, 229, 229, 229, 229, 229, 229, 229, 229, 229, 229, 229, 229, 229, 229, 228, 228, 228, 228, 228, 228, 228, 228, 228, 228, 228, 228, 228, 228, 228, 228, 228, 228, 228, 228, 228, 228, 228, 228, 228, 228, 228, 231, 231, 231, 231, 231, 231, 231, 231, 231, 231, 231, 231, 231, 231, 231, 231, 231, 231, 231, 231, 231, 231, 231, 231, 231, 231, 231, 230, 230, 230, 230, 230, 230, 230, 230, 230, 230, 230, 230, 230, 230, 230, 230, 230, 230, 230, 230, 230, 230, 230, 230, 230, 230, 225, 225, 225, 225, 225, 225, 225, 225, 225, 225, 225, 225, 225, 225, 225, 225, 225, 225, 225, 225, 225, 225, 225, 225, 225, 225, 225, 225, 224, 224, 224, 224, 224, 224, 224, 224, 224, 224, 224, 224, 224, 224, 224, 224, 224, 224, 224, 224, 224, 224, 224, 224, 224, 224, 224, 227, 227, 227, 227, 227, 227, 227, 227, 227, 227, 227, 227, 227, 227, 227, 227, 227, 227, 227, 227, 227, 227, 227, 227, 227, 227, 227, 227, 226, 226, 226, 226, 226, 226, 226, 226, 226, 226, 226, 226, 226, 226, 226, 226, 226, 226, 226, 226, 226, 226, 226, 226, 226, 226, 226, 226, 237, 237, 237, 237, 237, 237, 237, 237, 237, 237, 237, 237, 237, 237, 237, 237, 237, 237, 237, 237, 237, 237, 237, 237, 237, 237, 237, 237, 236, 236, 236, 236, 236, 236, 236, 236, 236, 236, 236, 236, 236, 236, 236, 236, 236, 236, 236, 236, 236, 236, 236, 236, 236, 236, 236, 236, 236, 239, 239, 239, 239, 239, 239, 239, 239, 239, 239, 239, 239, 239, 239, 239, 239, 239, 239, 239, 239, 239, 239, 239, 239, 239, 239, 239, 239, 239, 238, 238, 238, 238, 238, 238, 238, 238, 238, 238, 238, 238, 238, 238, 238, 238, 238, 238, 238, 238, 238, 238, 238, 238, 238, 238, 238, 238, 238, 233, 233, 233, 233, 233, 233, 233, 233, 233, 233, 233, 233, 233, 233, 233, 233, 233, 233, 233, 233, 233, 233, 233, 233, 233, 233, 233, 233, 233, 233, 232, 232, 232, 232, 232, 232, 232, 232, 232, 232, 232, 232, 232, 232, 232, 232, 232, 232, 232, 232, 232, 232, 232, 232, 232, 232, 232, 232, 232, 232, 232, 235, 235, 235, 235, 235, 235, 235, 235, 235, 235, 235, 235, 235, 235, 235, 235, 235, 235, 235, 235, 235, 235, 235, 235, 235, 235, 235, 235, 235, 235, 235, 234, 234, 234, 234, 234, 234, 234, 234, 234, 234, 234, 234, 234, 234, 234, 234, 234, 234, 234, 234, 234, 234, 234, 234, 234, 234, 234, 234, 234, 234, 234, 149, 149, 149, 149, 149, 149, 149, 149, 149, 149, 149, 149, 149, 149, 149, 149, 149, 149, 149, 149, 149, 149, 149, 149, 149, 149, 149, 149, 149, 149, 149, 149, 149, 149, 149, 149, 149, 149, 149, 149, 149, 149, 149, 149, 149, 149, 149, 149, 149, 149, 149, 149, 149, 149, 149, 149, 149, 149, 149, 149, 149, 149, 149, 149, 149, 148, 148, 148, 148, 148, 148, 148, 148, 148, 148, 148, 148, 148, 148, 148, 148, 148, 148, 148, 148, 148, 148, 148, 148, 148, 148, 148, 148, 148, 148, 148, 148, 148, 148, 148, 148, 148, 148, 148, 148, 148, 148, 148, 148, 148, 148, 148, 148, 148, 148, 148, 148, 148, 148, 148, 148, 148, 148, 148, 148, 148, 148, 148, 148, 148, 148, 148, 148, 151, 151, 151, 151, 151, 151, 151, 151, 151, 151, 151, 151, 151, 151, 151, 151, 151, 151, 151, 151, 151, 151, 151, 151, 151, 151, 151, 151, 151, 151, 151, 151, 151, 151, 151, 151, 151, 151, 151, 151, 151, 151, 151, 151, 151, 151, 151, 151, 151, 151, 151, 151, 151, 151, 151, 151, 151, 151, 151, 151, 151, 151, 151, 151, 151, 151, 151, 151, 151, 151, 151, 151, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 150, 145, 145, 145, 145, 145, 145, 145, 145, 145, 145, 145, 145, 145, 145, 145, 145, 145, 145, 145, 145, 145, 145, 145, 145, 145, 145, 145, 145, 145, 145, 145, 145, 145, 145, 145, 145, 145, 145, 145, 145, 145, 145, 145, 145, 145, 145, 145, 145, 145, 145, 145, 145, 145, 145, 145, 145, 145, 145, 145, 145, 145, 145, 145, 145, 145, 145, 145, 145, 145, 145, 145, 145, 145, 145, 145, 145, 145, 145, 145, 145, 145, 145, 145, 144, 144, 144, 144, 144, 144, 144, 144, 144, 144, 144, 144, 144, 144, 144, 144, 144, 144, 144, 144, 144, 144, 144, 144, 144, 144, 144, 144, 144, 144, 144, 144, 144, 144, 144, 144, 144, 144, 144, 144, 144, 144, 144, 144, 144, 144, 144, 144, 144, 144, 144, 144, 144, 144, 144, 144, 144, 144, 144, 144, 144, 144, 144, 144, 144, 144, 144, 144, 144, 144, 144, 144, 144, 144, 144, 144, 144, 144, 144, 144, 144, 144, 144, 144, 144, 144, 144, 144, 144, 144, 144, 144, 147, 147, 147, 147, 147, 147, 147, 147, 147, 147, 147, 147, 147, 147, 147, 147, 147, 147, 147, 147, 147, 147, 147, 147, 147, 147, 147, 147, 147, 147, 147, 147, 147, 147, 147, 147, 147, 147, 147, 147, 147, 147, 147, 147, 147, 147, 147, 147, 147, 147, 147, 147, 147, 147, 147, 147, 147, 147, 147, 147, 147, 147, 147, 147, 147, 147, 147, 147, 147, 147, 147, 147, 147, 147, 147, 147, 147, 147, 147, 147, 147, 147, 147, 147, 147, 147, 147, 147, 147, 147, 147, 147, 147, 147, 147, 147, 147, 147, 147, 147, 147, 147, 147, 147, 147, 146, 146, 146, 146, 146, 146, 146, 146, 146, 146, 146, 146, 146, 146, 146, 146, 146, 146, 146, 146, 146, 146, 146, 146, 146, 146, 146, 146, 146, 146, 146, 146, 146, 146, 146, 146, 146, 146, 146, 146, 146, 146, 146, 146, 146, 146, 146, 146, 146, 146, 146, 146, 146, 146, 146, 146, 146, 146, 146, 146, 146, 146, 146, 146, 146, 146, 146, 146, 146, 146, 146, 146, 146, 146, 146, 146, 146, 146, 146, 146, 146, 146, 146, 146, 146, 146, 146, 146, 146, 146, 146, 146, 146, 146, 146, 146, 146, 146, 146, 146, 146, 146, 146, 146, 146, 146, 146, 146, 146, 146, 146, 146, 146, 146, 146, 146, 146, 146, 146, 146, 146, 146, 146, 146, 146, 146, 157, 157, 157, 157, 157, 157, 157, 157, 157, 157, 157, 157, 157, 157, 157, 157, 157, 157, 157, 157, 157, 157, 157, 157, 157, 157, 157, 157, 157, 157, 157, 157, 157, 157, 157, 157, 157, 157, 157, 157, 157, 157, 157, 157, 157, 157, 157, 157, 157, 157, 157, 157, 157, 157, 157, 157, 157, 157, 157, 157, 157, 157, 157, 157, 157, 157, 157, 157, 157, 157, 157, 157, 157, 157, 157, 157, 157, 157, 157, 157, 157, 157, 157, 157, 157, 157, 157, 157, 157, 157, 157, 157, 157, 157, 157, 157, 157, 157, 157, 157, 157, 157, 157, 157, 157, 157, 157, 157, 157, 157, 157, 157, 157, 157, 157, 157, 157, 157, 157, 157, 157, 157, 157, 157, 157, 157, 157, 157, 157, 157, 157, 157, 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